2.8 Inch TFT LCD Module 240×320 SPI+RGB with Resistive Touch

Add a bright, touch‑enabled display to your embedded system with the JicTech 2.8″ TFT LCD Module. Featuring 240×320 resolution, 300 cd/m² brightness, flexible SPI+18‑bit RGB interface, and 4‑wire resistive touch, it delivers crisp visuals and reliable input. Ultra‑compact 3.8mm profile, 500:1 contrast, and 55% NTSC. 如需数据表、样品或批量定价,请联系 JicTech,以便立即进行设计。.


概述

The JicTech RT028TR5T-S2B is a versatile 2.8‑inch TFT LCD module designed for embedded applications that require a bright display, flexible interface options, and integrated touch input. Built on a TN panel (normally white), it offers 240×RGB×320 pixel resolution (QVGA), 65K colors, and a 6 o’clock optimal viewing direction. The dual SPI+18‑bit RGB interface allows easy configuration and fast video data transfer, fitting a wide range of MCUs and processors. An integrated 4‑wire resistive touch panel provides reliable input even with gloves. With 300 cd/m² brightness, 500:1 contrast ratio, and a compact 3.8mm overall thickness, this module is ideal for handheld devices, medical equipment, portable terminals, industrial control panels, and consumer electronics.

主要功能

  • 2.8” diagonal TN panel – 6 o’clock best viewing direction
  • 240×320 resolution – sharp QVGA, 65K colors
  • 模块尺寸 – 50.0 × 69.2 × 3.8 mm (W×H×T)
  • 活动区域 – 43.2 × 57.6 mm
  • Flexible interface – SPI + 18‑bit RGB (parallel) – command via SPI, video via RGB
  • 亮度 – 300 cd/m² typical – readable indoors and shaded outdoor
  • 高对比度 – 500:1 typical
  • 快速响应时间 – 16ms typical (Tr+Tf)
  • Integrated 4‑wire resistive touch – reliable, glove‑friendly, anti‑glare surface optional
  • 宽工作温度 -20℃至+70
  • 背光 – 6 white LEDs (parallel), 90mA total current
  • 驱动集成电路 – ILI9341V (well‑supported, mature)
  • MTBF - 20,000 小时
  • 符合 RoHS 标准

应用

  • Portable medical devices (patient monitors, diagnostic tools)
  • 工业人机界面和控制面板
  • Handheld test & measurement equipment
  • 智能家居网关和安全面板
  • 汽车辅助显示器
  • Consumer electronics with touch interface

技术规格

一般规格

Viewing Direction6 o’clock

参数价值
液晶显示屏尺寸2.8 英寸
面板类型a-Si TFT active matrix, TN (Normally White)
决议240 (RGB) × 320 pixels
显示模式TN / Normally White / Transmissive
颜色数量65K (6‑bit per color)
对比度500 : 1 (typical)
亮度(亮度)300 cd/m² (typical), 250 cd/m² (min)
模块尺寸(宽×高×长)50.00 × 69.20 × 3.80 mm (±0.2)
有效面积(宽×高)43.20 × 57.60 毫米
像素间距0.180 × 0.180 mm
驱动集成电路ILI9341V
界面SPI (control) + 18‑bit RGB (data)
触摸屏4 线电阻式触摸 (RTP)
背光6 white LEDs (parallel connection)
工作温度-20 ~ +70 °C
存储温度-30 ~ +80 °C

绝对最大额定值

参数符号最小最大单位
工作温度返回顶部-20+70°C
储存温度Tst-30+80°C
湿度RH-90(60°C 时)%

DC Characteristics (Ta=25°C)

参数符号最小类型最大单位
逻辑电源电压VDD2.62.83.3V
输入电流Idd-2536毫安
输入高电压VIH0.7×VDD-VDDV
输入低电压VILVSS-0.3×VDDV

Backlight Characteristics (Ta=25°C, constant current)

参数符号最小类型最大单位条件
正向电压Vf2.73.13.5VIf=90mA
LED current (total)如果-90-毫安Constant current

光学特性(Ta=25°C)

项目符号条件最小类型最大单位
对比度CR正常角度400500--
Luminance (center)Lv正常角度250300-cd/m²
亮度均匀性δ白色-80--%
响应时间 (Tr+Tf)-TC=25°C-16-毫秒
视角 (3:00)θLCR≥103545-退化
视角(9:00)θRCR≥103545-退化
视角(6:00)θUCR≥104050-退化
视角 (12:00)θDCR≥101020-退化
白色 CIE (x)Wx正常角度0.2570.3070.357-
白色 CIE (y)怀正常角度0.2690.3290.369-
NTSC 比率S--55.3%-%

Interface Pin Connection (50‑pin FPC – SPI + RGB + RTP, partial)

针脚编号.符号输入/输出说明
1LED_KPBacklight cathode (common)
2-5LED_A1~A4PBacklight anodes (4 of 6, remaining 2 on other pins)
6-9IM0-IM3IInterface mode select (set for SPI+RGB)
10重置I复位(低电平有效)
11VSYNCI垂直同步
12HSYNCI水平同步
13DOTCLKIPixel clock (RGB)
14DEI数据启用
15-32DB17-DB0输入/输出18‑bit RGB data bus
33SDOOSPI data out
34SDIISPI data in
35RDIRead strobe (not used in RGB mode)
36WRX(D/CX)IWrite strobe / Data/Command select
37D/CX(SCL)IData/Command (or SPI clock)
38CSXI芯片选择(低电平有效)
39TEO撕裂效果输出
40-41IOVCCPI/O power supply (1.65~3.3V)
42虚拟通道标志符PAnalog power supply (2.5~3.3V)
44-47XR、YU、XL、YD输入/输出4‑wire resistive touch panel signals (right, up, left, down)

Full 50‑pin pinout includes additional LED cathodes and grounds. Interface voltage levels depend on IOVCC and GND.

可靠性和质量保证

可靠性测试项目(通过标准)

  • 高温储存:80±2℃,48 小时
  • 低温储存:-30±2℃,48 小时
  • 高温运行:70±2℃, 48H
  • 低温运行:-20±2℃,48 小时
  • Thermal shock: -20℃ ↔ 70℃, 30min each, 10 cycles
  • ESD test: Air ±6kV / Contact ±4kV, 330Ω/150pF, 5 points each

MTBF: 室温下 20,000 小时(25±10℃,40±20% 相对湿度)。.

失败判断: 测试后,对比度≥初始值的 50%,无显示缺陷,电气/光学功能齐全。.

Quality Assurance (per MIL-STD-105E / GB2828)

  • 检查级别:一般 II 级,单一抽样
  • 主要缺陷 AQL:0.65
  • 小缺陷 AQL:1.5
  • Test conditions: 25±5℃, 45±20% RH, 40W fluorescent lamp, 30cm viewing distance, 0°~45°

处理和储存注意事项

  • 避免机械冲击或跌落 - 玻璃面板易碎。.
  • 如果 LCD 液体泄漏,立即用肥皂和水清洗皮肤/衣服;切勿吞咽。.
  • 使用接地工作站和防静电袋进行处理和储存。.
  • 储存:0~35°C,40~601TPT3T 相对湿度,置于密封的聚乙烯袋中,避免阳光直射。.
  • 手工焊接:320℃~350℃,每个焊盘最长 10 秒,避免反复加热。.
  • 请勿拆卸或改装模块。.

Packing Method

模块放置在防静电托盘中,用泡沫保护堆叠,用纸板固定,并用纸箱密封。可根据要求提供详细的包装图纸。.

订购与支持

The JicTech RT028TR5T-S2B is available for engineering samples and mass production. For a complete datasheet, 2D drawing, or a quotation, please contact our B2B sales team.

Download product manual: FULL-SPEC-RT028TR5T-S2B

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