{"id":30170,"date":"2026-06-11T07:48:53","date_gmt":"2026-06-11T07:48:53","guid":{"rendered":"https:\/\/jiclcd.com\/?p=30170"},"modified":"2026-06-11T07:49:54","modified_gmt":"2026-06-11T07:49:54","slug":"how-to-choose-lcd-resolution-size","status":"publish","type":"post","link":"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/","title":{"rendered":"\uc801\uc808\ud55c LCD \ud574\uc0c1\ub3c4\uc640 \ud06c\uae30 \uc120\ud0dd \ubc29\ubc95: \uc5d4\uc9c0\ub2c8\uc5b4\ub97c \uc704\ud55c \uc120\ud0dd \uac00\uc774\ub4dc"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\ubaa9\ucc28 \ud1a0\uae00\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#Introduction\" >Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#Part_1_%E2%80%93_Basic_Concepts_What_%E2%80%9CSize%E2%80%9D_and_%E2%80%9CResolution%E2%80%9D_Really_Mean\" >Part 1 \u2013 Basic Concepts: What \u201cSize\u201d and \u201cResolution\u201d Really Mean<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#11_Size_The_Truth_About_Diagonal_Inches\" >1.1 Size: The Truth About Diagonal Inches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#12_Resolution_The_Pixel_Matrix\" >1.2 Resolution: The Pixel Matrix<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#13_PPI_Pixels_Per_Inch_%E2%80%93_The_True_Sharpness_Metric\" >1.3 PPI (Pixels Per Inch) \u2013 The True Sharpness Metric<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#Part_2_%E2%80%93_Trade%E2%80%91offs_Between_Size_and_Resolution\" >Part 2 \u2013 Trade\u2011offs Between Size and Resolution<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#21_What_happens_when_you_increase_resolution_at_a_fixed_size\" >2.1 What happens when you increase resolution at a fixed size?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#22_What_happens_when_you_increase_size_at_a_fixed_resolution\" >2.2 What happens when you increase size at a fixed resolution?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#23_Golden_combinations_size_vs_resolution_by_application\" >2.3 Golden combinations: size vs resolution by application<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#Part_3_%E2%80%93_How_to_Calculate_the_Minimum_PPI_for_Your_Viewing_Distance\" >Part 3 \u2013 How to Calculate the Minimum PPI for Your Viewing Distance<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#31_The_Retina_formula_simplified\" >3.1 The Retina formula (simplified)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#32_Examples\" >3.2 Examples<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#33_Acceptable_PPI_vs_ideal_PPI\" >3.3 Acceptable PPI vs ideal PPI<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#Part_4_%E2%80%93_In%E2%80%91Depth_Selection_Advice_by_Application\" >Part 4 \u2013 In\u2011Depth Selection Advice by Application<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#41_Handheld_wearable_devices_small_size_high_PPI\" >4.1 Handheld &amp; wearable devices (small size, high PPI)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#42_Industrial_HMI_medium_size_medium_PPI_wide_temperature\" >4.2 Industrial HMI (medium size, medium PPI, wide temperature)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#43_Automotive_displays_large_size_high_brightness_extreme_reliability\" >4.3 Automotive displays (large size, high brightness, extreme reliability)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#44_Medical_monitors_medium_size_high_contrast_DICOM_compliance\" >4.4 Medical monitors (medium size, high contrast, DICOM compliance)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#45_Smart_home_appliances_small_size_low_cost_simple_UI\" >4.5 Smart home appliances (small size, low cost, simple UI)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#Part_5_%E2%80%93_Common_Mistakes_and_How_to_Avoid_Them\" >Part 5 \u2013 Common Mistakes and How to Avoid Them<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#%E2%9D%8C_Mistake_1_Copying_laptop_resolution_to_a_small_panel\" >\u274c Mistake 1: Copying laptop resolution to a small panel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#%E2%9D%8C_Mistake_2_Only_looking_at_diagonal_size_ignoring_aspect_ratio\" >\u274c Mistake 2: Only looking at diagonal size, ignoring aspect ratio<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#%E2%9D%8C_Mistake_3_Using_multiple_different_resolutions_across_a_product_family\" >\u274c Mistake 3: Using multiple different resolutions across a product family<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#%E2%9D%8C_Mistake_4_Chasing_very_high_PPI_without_considering_reliability\" >\u274c Mistake 4: Chasing very high PPI without considering reliability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#%E2%9D%8C_Mistake_5_Designing_tiny_touch_targets_on_a_high%E2%80%91PPI_small_screen\" >\u274c Mistake 5: Designing tiny touch targets on a high\u2011PPI small screen<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#Conclusion_Next_Steps\" >Conclusion &amp; Next Steps<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/#What_to_do_now\" >What to do now?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Choosing the wrong <a href=\"https:\/\/jiclcd.com\/tft-lcd-module\/\" type=\"link\" id=\"https:\/\/jiclcd.com\/tft-lcd-module\/\">LCD<\/a> size can force a complete mechanical redesign. Picking the wrong resolution makes text blurry, icons jagged, and your product look unpolished. Every hardware engineer and product manager has faced this dilemma.<\/p>\n\n\n\n<p>This 4,000\u2011word guide gives you a systematic decision framework. You will learn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>How screen size is measured (and why the diagonal alone is misleading).<\/li>\n\n\n\n<li>The real meaning of resolution and PPI (pixels per inch).<\/li>\n\n\n\n<li>How to balance size, resolution, cost, and performance.<\/li>\n\n\n\n<li>Recommended size\u2011resolution combinations for common applications.<\/li>\n\n\n\n<li>How to calculate the minimum PPI needed for a given viewing distance.<\/li>\n\n\n\n<li>Common mistakes and how to avoid them.<\/li>\n<\/ul>\n\n\n\n<p>A free <strong>LCD Size\/Resolution Selection Spreadsheet<\/strong> (Excel) is included \u2013 enter your viewing distance and desired PPI, and it recommends the best match from our standard product library.<\/p>\n\n\n\n<p>For a deeper understanding of how interfaces affect resolution choices, see our \u201c<a href=\"https:\/\/jiclcd.com\/the-ultimate-guide-to-tft-lcd-interfaces\/\" type=\"link\" id=\"https:\/\/jiclcd.com\/the-ultimate-guide-to-tft-lcd-interfaces\/\">Ultimate Guide to TFT\u2011LCD Interfaces<\/a>\u201d.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Part_1_%E2%80%93_Basic_Concepts_What_%E2%80%9CSize%E2%80%9D_and_%E2%80%9CResolution%E2%80%9D_Really_Mean\"><\/span>Part 1 \u2013 Basic Concepts: What \u201cSize\u201d and \u201cResolution\u201d Really Mean<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_Size_The_Truth_About_Diagonal_Inches\"><\/span>1.1 Size: The Truth About Diagonal Inches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The \u201csize\u201d of an LCD is the length of its diagonal, measured in inches (1 inch = 25.4 mm). This is an industry standard, but it can be misleading.<\/p>\n\n\n\n<p><strong>Why the diagonal alone is not enough<\/strong><br>Two displays with the same diagonal can have very different <strong>aspect ratios<\/strong> (4:3, 16:9, 16:10, 5:4). A 7\u2033 16:9 screen is much wider and less tall than a 7\u2033 4:3 screen. Always check the mechanical drawing.<\/p>\n\n\n\n<p><strong>How to calculate the diagonal<\/strong><br>If you know the active area width (W) and height (H) in mm:<\/p>\n\n\n<p>\\[<br \/>\n\\text{Size (inches)} = \\frac{\\sqrt{W^2 + H^2}}{25.4}<br \/>\n\\]<\/p>\n\n\n\n<p>[Internal Link: Browse our LCD mechanical drawings library \u2013 each product page includes a dimensional drawing.]<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_Resolution_The_Pixel_Matrix\"><\/span>1.2 Resolution: The Pixel Matrix<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Resolution is the number of horizontal pixels \u00d7 vertical pixels, for example <strong>800\u00d7480<\/strong>.<\/p>\n\n\n\n<p><strong>Common resolution tiers<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Resolution<\/th><th>Name<\/th><th>Typical size range<\/th><th>Typical use<\/th><\/tr><\/thead><tbody><tr><td>128\u00d764<\/td><td>\u2013<\/td><td>0.96\u2033 \u2013 2.4\u2033<\/td><td>Monochrome, simple UI<\/td><\/tr><tr><td>320\u00d7240<\/td><td>QVGA<\/td><td>2.4\u2033 \u2013 3.5\u2033<\/td><td>Basic colour, low\u2011cost devices<\/td><\/tr><tr><td>480\u00d7272<\/td><td>WQVGA<\/td><td>3.5\u2033 \u2013 5\u2033<\/td><td>Handheld, home appliances<\/td><\/tr><tr><td>800\u00d7480<\/td><td>WVGA<\/td><td>5\u2033 \u2013 7\u2033<\/td><td>Industrial HMI, POS<\/td><\/tr><tr><td>1024\u00d7600<\/td><td>WSVGA<\/td><td>7\u2033 \u2013 10.1\u2033<\/td><td>Industrial, tablet\u2011like UI<\/td><\/tr><tr><td>1280\u00d7800<\/td><td>WXGA<\/td><td>8\u2033 \u2013 12.3\u2033<\/td><td>Automotive, high\u2011end HMI<\/td><\/tr><tr><td>1920\u00d71080<\/td><td>Full HD (FHD)<\/td><td>10.1\u2033 \u2013 21.5\u2033<\/td><td>Medical monitors, gaming<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"13_PPI_Pixels_Per_Inch_%E2%80%93_The_True_Sharpness_Metric\"><\/span>1.3 PPI (Pixels Per Inch) \u2013 The True Sharpness Metric<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>PPI tells you how densely pixels are packed. It is the only real measure of sharpness.<\/p>\n\n\n\n<p><strong>Formula<\/strong><\/p>\n\n\n<p>\\[<br \/>\n\\text{PPI} = \\frac{\\sqrt{\\text{horizontal pixels}^2 + \\text{vertical pixels}^2}}{\\text{diagonal inches}}<br \/>\n\\]<\/p>\n\n\n\n<p><strong>Example<\/strong><br>A 7\u2033 display with 800\u00d7480 resolution:<br>\u221a(800\u00b2 + 480\u00b2) = \u221a(640,000 + 230,400) = \u221a870,400 \u2248 933<br>933 \/ 7 \u2248 <strong>133 PPI<\/strong><\/p>\n\n\n\n<p><strong>Recommended PPI by application<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Application<\/th><th>Typical viewing distance<\/th><th>Recommended PPI<\/th><\/tr><\/thead><tbody><tr><td>Industrial HMI<\/td><td>50 \u2013 100 cm<\/td><td>80 \u2013 120<\/td><\/tr><tr><td>Handheld medical<\/td><td>30 \u2013 40 cm<\/td><td>150 \u2013 250<\/td><\/tr><tr><td>Smartphone<\/td><td>20 \u2013 30 cm<\/td><td>300+<\/td><\/tr><tr><td>TV \/ monitor<\/td><td>&gt; 100 cm<\/td><td>60 \u2013 80<\/td><\/tr><tr><td>Automotive<\/td><td>60 \u2013 80 cm<\/td><td>120 \u2013 180<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Warning<\/strong><br>Higher PPI is not always better. It increases:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bandwidth requirements (need faster interfaces like LVDS or MIPI).<\/li>\n\n\n\n<li>Host processing power (larger frame buffer, more GPU load).<\/li>\n\n\n\n<li>Backlight power (denser pixels reduce aperture ratio).<\/li>\n\n\n\n<li>Cost (more expensive ICs, lower manufacturing yield).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Part_2_%E2%80%93_Trade%E2%80%91offs_Between_Size_and_Resolution\"><\/span>Part 2 \u2013 Trade\u2011offs Between Size and Resolution<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21_What_happens_when_you_increase_resolution_at_a_fixed_size\"><\/span>2.1 What happens when you increase resolution at a fixed size?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Benefits<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sharper image.<\/li>\n\n\n\n<li>More content on screen (e.g., more rows in a data table).<\/li>\n<\/ul>\n\n\n\n<p><strong>Costs<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher interface bandwidth \u2192 may require moving from RGB to LVDS or MIPI.<\/li>\n\n\n\n<li>Larger frame buffer \u2192 may need an external RAM or a more powerful MCU.<\/li>\n\n\n\n<li>Reduced aperture ratio \u2192 lower light transmission \u2192 requires brighter (and hotter) backlight.<\/li>\n\n\n\n<li>Higher IC cost and lower yield \u2192 module price increases 20\u201150% when moving from WVGA to WXGA on the same size.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22_What_happens_when_you_increase_size_at_a_fixed_resolution\"><\/span>2.2 What happens when you increase size at a fixed resolution?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Benefits<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Larger active area \u2192 easier touch targets, better readability for older users.<\/li>\n\n\n\n<li>Same software UI works without changes.<\/li>\n<\/ul>\n\n\n\n<p><strong>Costs<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PPI drops<\/strong> \u2192 pixels become visible (\u201cscreen door effect\u201d).<\/li>\n\n\n\n<li>Same resolution on a larger screen looks blocky and jagged.<\/li>\n\n\n\n<li>Backlight uniformity becomes harder (more LEDs needed, higher risk of hotspots).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"23_Golden_combinations_size_vs_resolution_by_application\"><\/span>2.3 Golden combinations: size vs resolution by application<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Application<\/th><th>Size range<\/th><th>Recommended resolution<\/th><th>Approx. PPI<\/th><th>Typical interface<\/th><th>Viewing distance<\/th><\/tr><\/thead><tbody><tr><td>Smartwatch<\/td><td>1.2\u2033 \u2013 1.8\u2033<\/td><td>240\u00d7240 or 390\u00d7390<\/td><td>250 \u2013 300<\/td><td>MIPI \/ SPI<\/td><td>30 cm<\/td><\/tr><tr><td>Handheld medical<\/td><td>3.5\u2033 \u2013 5\u2033<\/td><td>480\u00d7320 or 800\u00d7480<\/td><td>150 \u2013 200<\/td><td>MCU \/ RGB<\/td><td>40 cm<\/td><\/tr><tr><td>Industrial HMI<\/td><td>7\u2033 \u2013 10.1\u2033<\/td><td>800\u00d7480 or 1024\u00d7600<\/td><td>100 \u2013 120<\/td><td>RGB \/ LVDS<\/td><td>60 cm<\/td><\/tr><tr><td>Automotive infotainment<\/td><td>8\u2033 \u2013 12.3\u2033<\/td><td>1280\u00d7800 or 1920\u00d71080<\/td><td>120 \u2013 180<\/td><td>LVDS \/ MIPI<\/td><td>70 cm<\/td><\/tr><tr><td>Home appliance<\/td><td>2.4\u2033 \u2013 5\u2033<\/td><td>320\u00d7240 or 480\u00d7272<\/td><td>120 \u2013 150<\/td><td>MCU \/ SPI<\/td><td>50 cm<\/td><\/tr><tr><td>POS \/ checkout<\/td><td>5\u2033 \u2013 7\u2033<\/td><td>800\u00d7480 or 1024\u00d7600<\/td><td>150 \u2013 200<\/td><td>RGB \/ LVDS<\/td><td>50 cm<\/td><\/tr><tr><td>Large monitor<\/td><td>15.6\u2033 \u2013 21.5\u2033<\/td><td>1920\u00d71080<\/td><td>80 \u2013 100<\/td><td>LVDS \/ eDP<\/td><td>80 cm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Part_3_%E2%80%93_How_to_Calculate_the_Minimum_PPI_for_Your_Viewing_Distance\"><\/span>Part 3 \u2013 How to Calculate the Minimum PPI for Your Viewing Distance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"31_The_Retina_formula_simplified\"><\/span>3.1 The Retina formula (simplified)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Apple\u2019s \u201cRetina\u201d concept says a display is sharp enough when the human eye cannot distinguish individual pixels at a normal viewing distance. The angular resolution limit of the human eye is about 1 arcminute (1\/60 degree).<\/p>\n\n\n\n<p>From this, the <strong>minimum PPI required<\/strong> for a given viewing distance (in inches) is:<\/p>\n\n\n<p>\\[<br \/>\n\\text{Min PPI} = \\frac{3438}{\\text{viewing distance (inches)}}<br \/>\n\\]<\/p>\n\n\n\n<p><strong>Why 3438?<\/strong><br>It comes from: 1 \/ tan(1 arcminute) \u2248 3438. This formula assumes a 20\/20 vision.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"32_Examples\"><\/span>3.2 Examples<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Viewing distance (cm)<\/th><th>Viewing distance (inches)<\/th><th>Minimum PPI<\/th><th>Typical application<\/th><\/tr><\/thead><tbody><tr><td>30 cm<\/td><td>11.8\u2033<\/td><td>291<\/td><td>Smartwatch, phone<\/td><\/tr><tr><td>40 cm<\/td><td>15.75\u2033<\/td><td>218<\/td><td>Handheld device<\/td><\/tr><tr><td>60 cm<\/td><td>23.6\u2033<\/td><td>146<\/td><td>Industrial HMI, automotive<\/td><\/tr><tr><td>80 cm<\/td><td>31.5\u2033<\/td><td>109<\/td><td>Desktop monitor<\/td><\/tr><tr><td>100 cm<\/td><td>39.4\u2033<\/td><td>87<\/td><td>TV<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"33_Acceptable_PPI_vs_ideal_PPI\"><\/span>3.3 Acceptable PPI vs ideal PPI<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Industrial \/ medical<\/strong>: Meeting the minimum PPI is enough. Exceeding it adds cost without tangible benefit.<\/li>\n\n\n\n<li><strong>Consumer electronics<\/strong>: Aim for 20\u201130% above the minimum for a \u201cpremium\u201d feel.<\/li>\n<\/ul>\n\n\n\n<p><strong>Interactive tool<\/strong><br>We provide an online calculator: enter your viewing distance (cm) \u2192 get recommended PPI range and matching LCD models.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Part_4_%E2%80%93_In%E2%80%91Depth_Selection_Advice_by_Application\"><\/span>Part 4 \u2013 In\u2011Depth Selection Advice by Application<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"41_Handheld_wearable_devices_small_size_high_PPI\"><\/span>4.1 Handheld &amp; wearable devices (small size, high PPI)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Key constraints<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Power consumption (battery life).<\/li>\n\n\n\n<li>Mechanical thickness.<\/li>\n\n\n\n<li>Host processor capability (often a low\u2011power MCU).<\/li>\n<\/ul>\n\n\n\n<p><strong>Recommendations<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Interface: MIPI DSI (low power) or SPI (very low resolution).<\/li>\n\n\n\n<li>PPI: 200 \u2013 300.<\/li>\n\n\n\n<li>Avoid RGB interface \u2013 it drains battery quickly.<\/li>\n<\/ul>\n\n\n\n<p><strong>Common mistake<\/strong><br>Using a high\u2011resolution panel (e.g., 1080p on a 4\u2033 screen) with a low\u2011end MCU. The MCU cannot drive the frame buffer, leading to sluggish UI.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"42_Industrial_HMI_medium_size_medium_PPI_wide_temperature\"><\/span>4.2 Industrial HMI (medium size, medium PPI, wide temperature)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Key constraints<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reliability (24\/7 operation, vibration, dust).<\/li>\n\n\n\n<li>Sunlight readability (brightness &gt; 500 nits).<\/li>\n\n\n\n<li>Long\u2011term availability (5\u201110 years).<\/li>\n<\/ul>\n\n\n\n<p><strong>Recommendations<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Classic combos: 7\u2033 800\u00d7480, 10.1\u2033 1024\u00d7600.<\/li>\n\n\n\n<li>Interface: RGB or LVDS (good noise immunity).<\/li>\n\n\n\n<li>PPI: 100 \u2013 120 (enough for 60\u2011100 cm viewing distance).<\/li>\n<\/ul>\n\n\n\n<p><strong>The 1080p trap<\/strong><br>Some engineers specify 1920\u00d71080 on a 10.1\u2033 screen because \u201chigher is better\u201d. At 60 cm viewing distance, the human eye cannot resolve beyond ~150 PPI. The extra pixels only increase host cost, power, and EMI \u2013 with zero visible benefit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"43_Automotive_displays_large_size_high_brightness_extreme_reliability\"><\/span>4.3 Automotive displays (large size, high brightness, extreme reliability)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Key constraints<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wide temperature: -40\u00b0C to +85\u00b0C.<\/li>\n\n\n\n<li>Vibration resistance (MIL\u2011STD or ISO 16750).<\/li>\n\n\n\n<li>LVDS interface (standard in automotive).<\/li>\n\n\n\n<li>Long backlight life (&gt;50,000 hours).<\/li>\n<\/ul>\n\n\n\n<p><strong>Trends<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Moving from 12.3\u2033 1920\u00d7720 to 15\u2033+ 4K panels, but requires a powerful GPU.<\/li>\n\n\n\n<li>Curved displays and local dimming are becoming common.<\/li>\n<\/ul>\n\n\n\n<p><strong>Recommendations<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For central infotainment: 8\u2033-10.25\u2033 1280\u00d7800.<\/li>\n\n\n\n<li>For digital cluster: 12.3\u2033 1920\u00d7720 (ultrawide).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"44_Medical_monitors_medium_size_high_contrast_DICOM_compliance\"><\/span>4.4 Medical monitors (medium size, high contrast, DICOM compliance)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Key constraints<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DICOM Part 14 grayscale standard.<\/li>\n\n\n\n<li>Luminance stability (backlight feedback sensor).<\/li>\n\n\n\n<li>Anti\u2011glare \/ anti\u2011reflective surface.<\/li>\n<\/ul>\n\n\n\n<p><strong>Recommendations<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Size: 5\u2033 to 8\u2033 for portable monitors; 15\u2033+ for diagnostic workstations.<\/li>\n\n\n\n<li>Resolution: 800\u00d7600 (SVGA) or 1024\u00d7768 (XGA).<\/li>\n\n\n\n<li>Technology: IPS for wide viewing angles and colour accuracy.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"45_Smart_home_appliances_small_size_low_cost_simple_UI\"><\/span>4.5 Smart home appliances (small size, low cost, simple UI)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Key constraints<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cost \u2013 the display must not double the BOM.<\/li>\n\n\n\n<li>MCU resources \u2013 often a small 8\u2011bit or 32\u2011bit ARM Cortex\u2011M.<\/li>\n\n\n\n<li>Simple menu or status display.<\/li>\n<\/ul>\n\n\n\n<p><strong>Recommendations<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Size: 2.4\u2033 \u2013 3.5\u2033.<\/li>\n\n\n\n<li>Resolution: 320\u00d7240 (QVGA) or 480\u00d7272.<\/li>\n\n\n\n<li>Interface: MCU (8080) or SPI.<\/li>\n<\/ul>\n\n\n\n<p><strong>Common mistake<\/strong><br>Using a 480\u00d7800 MIPI display because it looks good on a smartphone, then being forced to upgrade to an expensive MPU with MIPI DSI host.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Part_5_%E2%80%93_Common_Mistakes_and_How_to_Avoid_Them\"><\/span>Part 5 \u2013 Common Mistakes and How to Avoid Them<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9D%8C_Mistake_1_Copying_laptop_resolution_to_a_small_panel\"><\/span>\u274c Mistake 1: Copying laptop resolution to a small panel<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A 15.6\u2033 laptop with 1920\u00d71080 (141 PPI) looks sharp. But a <strong>7\u2033 panel with 1920\u00d71080<\/strong> has 315 PPI. At normal viewing distance, text becomes extremely small, Windows scaling is poor, and the host processor struggles.<\/p>\n\n\n\n<p><strong>Fix<\/strong><br>For 7\u2033, do not exceed 1280\u00d7800. For 5\u2033, stay at or below 800\u00d7480.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9D%8C_Mistake_2_Only_looking_at_diagonal_size_ignoring_aspect_ratio\"><\/span>\u274c Mistake 2: Only looking at diagonal size, ignoring aspect ratio<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A 5\u2033 4:3 screen has a very different active area (width ~102 mm) compared to a 5\u2033 16:9 screen (width ~110 mm). UI layouts designed for one may overflow on the other.<\/p>\n\n\n\n<p><strong>Fix<\/strong><br>Always request the mechanical drawing and verify the active area width and height.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9D%8C_Mistake_3_Using_multiple_different_resolutions_across_a_product_family\"><\/span>\u274c Mistake 3: Using multiple different resolutions across a product family<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>One product uses 800\u00d7480, another uses 1024\u00d7600, a third uses 1280\u00d7720. The software team must maintain three separate UI layouts, increasing development and testing time.<\/p>\n\n\n\n<p><strong>Fix<\/strong><br>Standardise on one resolution per product family. If you need to support different screen sizes, use a display controller that can scale the UI.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9D%8C_Mistake_4_Chasing_very_high_PPI_without_considering_reliability\"><\/span>\u274c Mistake 4: Chasing very high PPI without considering reliability<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>In industrial environments with vibration, extremely fine ITO traces (required for &gt;250 PPI) are more prone to cracking or bonding failure.<\/p>\n\n\n\n<p><strong>Explanation<\/strong><br>High PPI forces narrower line\/space design and tighter bonding pitch. Not all module factories can reliably produce such panels for harsh environments.<\/p>\n\n\n\n<p><strong>Fix<\/strong><br>For industrial applications, stay below 200 PPI unless you have a validated module and factory.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9D%8C_Mistake_5_Designing_tiny_touch_targets_on_a_high%E2%80%91PPI_small_screen\"><\/span>\u274c Mistake 5: Designing tiny touch targets on a high\u2011PPI small screen<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A 5\u2033 1080p screen (440 PPI) has very small physical pixels, but a touch button of 50\u00d750 pixels might be only 2.9 mm wide \u2013 far below the recommended 7 mm minimum for finger touch.<\/p>\n\n\n\n<p><strong>Fix<\/strong><br>Design touch targets based on <strong>physical size<\/strong>, not pixel count. Minimum 7\u00d77 mm for gloved fingers, 5\u00d75 mm for bare finger.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion_Next_Steps\"><\/span>Conclusion &amp; Next Steps<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Choosing the right LCD size and resolution is a balancing act between viewing distance, UI complexity, host capability, cost, and reliability. Use the decision tables and PPI formula in this guide to narrow down your options.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_to_do_now\"><\/span>What to do now?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u2705 <strong>Download the free LCD Size\/Resolution Selection Spreadsheet<\/strong> \u2013 an Excel tool that takes your viewing distance and desired PPI, then recommends the optimal size and resolution combination from our standard library.<\/p>\n\n\n\n<p>\u2705 <strong>Still unsure?<\/strong> Submit your application (industrial, medical, automotive, etc.) and typical viewing distance. JICLCD engineers will recommend three optimal configurations within 48 hours \u2013 free of charge.<\/p>\n\n\n\n<p>\u2705 <strong>Browse our standard products<\/strong> \u2013 filter by size, resolution, and interface to find a display that matches your choice.<\/p>\n\n\n\n<p><a href=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/06\/TFT-LCD-Interface.xlsx\" type=\"link\" id=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/06\/TFT-LCD-Interface.xlsx\">Download TFT LCD display module specifications<\/a><\/p>\n\n\n<div class=\"wpforms-container wpforms-block wpforms-block-ac51b7aa-2a42-4e91-b538-096aa1238793\" id=\"wpforms-429\"><form id=\"wpforms-form-429\" class=\"wpforms-validate wpforms-form wpforms-ajax-form\" data-formid=\"429\" method=\"post\" enctype=\"multipart\/form-data\" action=\"\/ko\/wp-json\/wp\/v2\/posts\/30170\" data-token=\"e225bcf0664879155fd8959160b427e0\" data-token-time=\"1781328833\"><noscript class=\"wpforms-error-noscript\">\uc774 \uc591\uc2dd\uc744 \uc791\uc131\ud558\ub824\uba74 \ube0c\ub77c\uc6b0\uc800\uc5d0\uc11c JavaScript\ub97c \ud65c\uc131\ud654\ud558\uc2ed\uc2dc\uc624.<\/noscript><div class=\"wpforms-field-container\"><div id=\"wpforms-429-field_0-container\" class=\"wpforms-field wpforms-field-name\" data-field-id=\"0\"><label class=\"wpforms-field-label\" for=\"wpforms-429-field_0\">First &amp; Last Name <span class=\"wpforms-required-label\">*<\/span><\/label><input type=\"text\" id=\"wpforms-429-field_0\" class=\"wpforms-field-large wpforms-field-required\" name=\"wpforms[fields][0]\" required><\/div><div id=\"wpforms-429-field_1-container\" class=\"wpforms-field wpforms-field-email\" data-field-id=\"1\"><label class=\"wpforms-field-label\" for=\"wpforms-429-field_1\">Email Address <span class=\"wpforms-required-label\">*<\/span><\/label><input type=\"email\" id=\"wpforms-429-field_1\" class=\"wpforms-field-large wpforms-field-required\" name=\"wpforms[fields][1]\" spellcheck=\"false\" required><\/div><div id=\"wpforms-429-field_3-container\" class=\"wpforms-field wpforms-field-text\" data-field-id=\"3\"><label class=\"wpforms-field-label\" for=\"wpforms-429-field_3\">Subject<\/label><input type=\"text\" id=\"wpforms-429-field_3\" class=\"wpforms-field-large\" name=\"wpforms[fields][3]\" ><\/div><div id=\"wpforms-429-field_2-container\" class=\"wpforms-field wpforms-field-textarea\" data-field-id=\"2\"><label class=\"wpforms-field-label\" for=\"wpforms-429-field_2\">Comment or Message<\/label><textarea id=\"wpforms-429-field_2\" class=\"wpforms-field-large\" name=\"wpforms[fields][2]\" ><\/textarea><\/div><div id=\"wpforms-429-field_4-container\" class=\"wpforms-field wpforms-field-hidden\" data-field-id=\"4\"><input type=\"hidden\" id=\"wpforms-429-field_4\" name=\"wpforms[fields][4]\" value=\" - https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/posts\/30170\"><\/div><div id=\"wpforms-429-field_5-container\" class=\"wpforms-field wpforms-field-hidden\" data-field-id=\"5\"><input type=\"hidden\" id=\"wpforms-429-field_5\" name=\"wpforms[fields][5]\"><\/div><div id=\"wpforms-429-field_6-container\" class=\"wpforms-field wpforms-field-hidden\" data-field-id=\"6\"><input type=\"hidden\" id=\"wpforms-429-field_6\" name=\"wpforms[fields][6]\"><\/div><div id=\"wpforms-429-field_7-container\" class=\"wpforms-field wpforms-field-hidden\" data-field-id=\"7\"><input type=\"hidden\" id=\"wpforms-429-field_7\" name=\"wpforms[fields][7]\"><\/div><\/div><!-- .wpforms-field-container --><div class=\"wpforms-recaptcha-container wpforms-is-turnstile\" ><div class=\"g-recaptcha\" data-sitekey=\"0x4AAAAAACMK-o0cyVwTWEWU\" data-action=\"FormID-429\"><\/div><input type=\"text\" name=\"g-recaptcha-hidden\" class=\"wpforms-recaptcha-hidden\" style=\"position:absolute!important;clip:rect(0,0,0,0)!important;height:1px!important;width:1px!important;border:0!important;overflow:hidden!important;padding:0!important;margin:0!important;\" data-rule-turnstile=\"1\"><\/div><div class=\"wpforms-submit-container\" ><input type=\"hidden\" name=\"wpforms[id]\" value=\"429\"><input type=\"hidden\" name=\"page_title\" value=\"\"><input type=\"hidden\" name=\"page_url\" value=\"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/posts\/30170\"><input type=\"hidden\" name=\"url_referer\" value=\"\"><button type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-429\" class=\"wpforms-submit\" data-alt-text=\"Sending...\" data-submit-text=\"Send Message\" aria-live=\"assertive\" value=\"wpforms-submit\">Send Message<\/button><img decoding=\"async\" src=\"https:\/\/jiclcd.com\/wp-content\/plugins\/wpforms\/assets\/images\/submit-spin.svg\" class=\"wpforms-submit-spinner\" style=\"display: none;\" width=\"26\" height=\"26\" alt=\"\ub85c\ub529 \uc911\"><\/div><\/form><\/div>  <!-- .wpforms-container -->","protected":false},"excerpt":{"rendered":"<p>Introduction Choosing the wrong LCD size can force a complete mechanical redesign. Picking the wrong resolution makes text blurry, icons jagged, and your product look unpolished. Every hardware engineer and product manager has faced this dilemma. This 4,000\u2011word guide gives you a systematic decision framework. You will learn: A free LCD Size\/Resolution Selection Spreadsheet (Excel) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":29889,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[110],"tags":[],"class_list":["post-30170","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tft-lcd"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide - Jictech<\/title>\n<meta name=\"description\" content=\"Learn how to choose the correct LCD resolution and size for your project. PPI calculation, viewing distance, application tables, and common mistakes. Free Excel tool inside.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide - Jictech\" \/>\n<meta property=\"og:description\" content=\"Learn how to choose the correct LCD resolution and size for your project. PPI calculation, viewing distance, application tables, and common mistakes. Free Excel tool inside.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/\" \/>\n<meta property=\"og:site_name\" content=\"Jictech\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-11T07:48:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-11T07:49:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/05\/RG-B20848BBM-V03.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1584\" \/>\n\t<meta property=\"og:image:height\" content=\"1224\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"jiesheng13025100842@gmail.com\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uae00\uc4f4\uc774\" \/>\n\t<meta name=\"twitter:data1\" content=\"jiesheng13025100842@gmail.com\" \/>\n\t<meta name=\"twitter:label2\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data2\" content=\"8\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/\"},\"author\":{\"name\":\"jiesheng13025100842@gmail.com\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#\\\/schema\\\/person\\\/b932fc9521a01a2f60aba6e55167a9d3\"},\"headline\":\"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide\",\"datePublished\":\"2026-06-11T07:48:53+00:00\",\"dateModified\":\"2026-06-11T07:49:54+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/\"},\"wordCount\":1554,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/jiclcd.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/RG-B20848BBM-V03.jpg\",\"articleSection\":[\"TFT LCD\"],\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/\",\"url\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/\",\"name\":\"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide - Jictech\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/jiclcd.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/RG-B20848BBM-V03.jpg\",\"datePublished\":\"2026-06-11T07:48:53+00:00\",\"dateModified\":\"2026-06-11T07:49:54+00:00\",\"description\":\"Learn how to choose the correct LCD resolution and size for your project. PPI calculation, viewing distance, application tables, and common mistakes. Free Excel tool inside.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/#primaryimage\",\"url\":\"https:\\\/\\\/jiclcd.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/RG-B20848BBM-V03.jpg\",\"contentUrl\":\"https:\\\/\\\/jiclcd.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/RG-B20848BBM-V03.jpg\",\"width\":1584,\"height\":1224,\"caption\":\"Electronic scale display module\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/de\\\/how-to-choose-lcd-resolution-size\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"TFT LCD\",\"item\":\"https:\\\/\\\/jiclcd.com\\\/ko\\\/category\\\/tft-lcd\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#website\",\"url\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/\",\"name\":\"Industrial Display Manufacturer | TFT LCD, OLED, E-Paper Modules | JicTech\",\"description\":\"High-definition display module manufacturer\",\"publisher\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#organization\",\"name\":\"Shenzhen JicTech LCD Co., Ltd.\",\"url\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/jiclcd.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/JicTech-LCD-display-logo_85.png.webp\",\"contentUrl\":\"https:\\\/\\\/jiclcd.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/JicTech-LCD-display-logo_85.png.webp\",\"width\":85,\"height\":86,\"caption\":\"Shenzhen JicTech LCD Co., Ltd.\"},\"image\":{\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/jiclcd.com\\\/ja\\\/#\\\/schema\\\/person\\\/b932fc9521a01a2f60aba6e55167a9d3\",\"name\":\"jiesheng13025100842@gmail.com\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4845f044125f2a6a3138c99f6d7e29003eaec19312f6120b51cf56d5e401b3b5?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4845f044125f2a6a3138c99f6d7e29003eaec19312f6120b51cf56d5e401b3b5?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4845f044125f2a6a3138c99f6d7e29003eaec19312f6120b51cf56d5e401b3b5?s=96&d=mm&r=g\",\"caption\":\"jiesheng13025100842@gmail.com\"},\"sameAs\":[\"https:\\\/\\\/jiclcd.com\"],\"url\":\"https:\\\/\\\/jiclcd.com\\\/ko\\\/author\\\/jiesheng13025100842gmail-com\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide - Jictech","description":"Learn how to choose the correct LCD resolution and size for your project. PPI calculation, viewing distance, application tables, and common mistakes. Free Excel tool inside.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/","og_locale":"ko_KR","og_type":"article","og_title":"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide - Jictech","og_description":"Learn how to choose the correct LCD resolution and size for your project. PPI calculation, viewing distance, application tables, and common mistakes. Free Excel tool inside.","og_url":"https:\/\/jiclcd.com\/ko\/how-to-choose-lcd-resolution-size\/","og_site_name":"Jictech","article_published_time":"2026-06-11T07:48:53+00:00","article_modified_time":"2026-06-11T07:49:54+00:00","og_image":[{"width":1584,"height":1224,"url":"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/05\/RG-B20848BBM-V03.jpg","type":"image\/jpeg"}],"author":"jiesheng13025100842@gmail.com","twitter_card":"summary_large_image","twitter_misc":{"\uae00\uc4f4\uc774":"jiesheng13025100842@gmail.com","\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"8\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/#article","isPartOf":{"@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/"},"author":{"name":"jiesheng13025100842@gmail.com","@id":"https:\/\/jiclcd.com\/ja\/#\/schema\/person\/b932fc9521a01a2f60aba6e55167a9d3"},"headline":"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide","datePublished":"2026-06-11T07:48:53+00:00","dateModified":"2026-06-11T07:49:54+00:00","mainEntityOfPage":{"@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/"},"wordCount":1554,"commentCount":0,"publisher":{"@id":"https:\/\/jiclcd.com\/ja\/#organization"},"image":{"@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/#primaryimage"},"thumbnailUrl":"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/05\/RG-B20848BBM-V03.jpg","articleSection":["TFT LCD"],"inLanguage":"ko-KR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/","url":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/","name":"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide - Jictech","isPartOf":{"@id":"https:\/\/jiclcd.com\/ja\/#website"},"primaryImageOfPage":{"@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/#primaryimage"},"image":{"@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/#primaryimage"},"thumbnailUrl":"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/05\/RG-B20848BBM-V03.jpg","datePublished":"2026-06-11T07:48:53+00:00","dateModified":"2026-06-11T07:49:54+00:00","description":"Learn how to choose the correct LCD resolution and size for your project. PPI calculation, viewing distance, application tables, and common mistakes. Free Excel tool inside.","breadcrumb":{"@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/#primaryimage","url":"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/05\/RG-B20848BBM-V03.jpg","contentUrl":"https:\/\/jiclcd.com\/wp-content\/uploads\/2026\/05\/RG-B20848BBM-V03.jpg","width":1584,"height":1224,"caption":"Electronic scale display module"},{"@type":"BreadcrumbList","@id":"https:\/\/jiclcd.com\/de\/how-to-choose-lcd-resolution-size\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/jiclcd.com\/ja\/"},{"@type":"ListItem","position":2,"name":"TFT LCD","item":"https:\/\/jiclcd.com\/ko\/category\/tft-lcd\/"},{"@type":"ListItem","position":3,"name":"How to Choose the Correct LCD Resolution and Size: Engineer\u2019s Selection Guide"}]},{"@type":"WebSite","@id":"https:\/\/jiclcd.com\/ja\/#website","url":"https:\/\/jiclcd.com\/ja\/","name":"\uc0b0\uc5c5\uc6a9 \ub514\uc2a4\ud50c\ub808\uc774 \uc81c\uc870\uc5c5\uccb4 | TFT LCD, OLED, \uc804\uc790\uc885\uc774 \ubaa8\ub4c8 | JicTech","description":"\uace0\ud654\uc9c8 \ub514\uc2a4\ud50c\ub808\uc774 \ubaa8\ub4c8 \uc81c\uc870\uc5c5\uccb4","publisher":{"@id":"https:\/\/jiclcd.com\/ja\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/jiclcd.com\/ja\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Organization","@id":"https:\/\/jiclcd.com\/ja\/#organization","name":"\uc2ec\ucc9c JicTech LCD Co.","url":"https:\/\/jiclcd.com\/ja\/","logo":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/jiclcd.com\/ja\/#\/schema\/logo\/image\/","url":"https:\/\/jiclcd.com\/wp-content\/uploads\/2025\/11\/JicTech-LCD-display-logo_85.png.webp","contentUrl":"https:\/\/jiclcd.com\/wp-content\/uploads\/2025\/11\/JicTech-LCD-display-logo_85.png.webp","width":85,"height":86,"caption":"Shenzhen JicTech LCD Co., Ltd."},"image":{"@id":"https:\/\/jiclcd.com\/ja\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/jiclcd.com\/ja\/#\/schema\/person\/b932fc9521a01a2f60aba6e55167a9d3","name":"jiesheng13025100842@gmail.com","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/secure.gravatar.com\/avatar\/4845f044125f2a6a3138c99f6d7e29003eaec19312f6120b51cf56d5e401b3b5?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4845f044125f2a6a3138c99f6d7e29003eaec19312f6120b51cf56d5e401b3b5?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4845f044125f2a6a3138c99f6d7e29003eaec19312f6120b51cf56d5e401b3b5?s=96&d=mm&r=g","caption":"jiesheng13025100842@gmail.com"},"sameAs":["https:\/\/jiclcd.com"],"url":"https:\/\/jiclcd.com\/ko\/author\/jiesheng13025100842gmail-com\/"}]}},"_links":{"self":[{"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/posts\/30170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/comments?post=30170"}],"version-history":[{"count":2,"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/posts\/30170\/revisions"}],"predecessor-version":[{"id":30172,"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/posts\/30170\/revisions\/30172"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/media\/29889"}],"wp:attachment":[{"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/media?parent=30170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/categories?post=30170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jiclcd.com\/ko\/wp-json\/wp\/v2\/tags?post=30170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}