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 | VDD | 2.6 | 2.8 | 3.3 | V |
| 输入电流 | Idd | - | 25 | 36 | 毫安 |
| 输入高电压 | VIH | 0.7×VDD | - | VDD | V |
| 输入低电压 | VIL | VSS | - | 0.3×VDD | V |
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 | Vf | 2.7 | 3.1 | 3.5 | V | If=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 | 400 | 500 | - | - |
| Luminance (center) | Lv | 正常角度 | 250 | 300 | - | 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) | θL | CR≥10 | 35 | 45 | - | 退化 |
| 视角(9:00) | θR | CR≥10 | 35 | 45 | - | 退化 |
| 视角(6:00) | θU | CR≥10 | 40 | 50 | - | 退化 |
| 视角 (12:00) | θD | CR≥10 | 10 | 20 | - | 退化 |
| 白色 CIE (x) | Wx | 正常角度 | 0.257 | 0.307 | 0.357 | - |
| 白色 CIE (y) | 怀 | 正常角度 | 0.269 | 0.329 | 0.369 | - |
| 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 |
|---|---|---|---|
| 1 | LED_K | P | Backlight cathode (common) |
| 2-5 | LED_A1~A4 | P | Backlight anodes (4 of 6, remaining 2 on other pins) |
| 6-9 | IM0-IM3 | I | Interface mode select (set for SPI+RGB) |
| 10 | 重置 | I | 复位(低电平有效) |
| 11 | VSYNC | I | 垂直同步 |
| 12 | HSYNC | I | 水平同步 |
| 13 | DOTCLK | I | Pixel clock (RGB) |
| 14 | DE | I | 数据启用 |
| 15-32 | DB17-DB0 | 输入/输出 | 18‑bit RGB data bus |
| 33 | SDO | O | SPI data out |
| 34 | SDI | I | SPI data in |
| 35 | RD | I | Read strobe (not used in RGB mode) |
| 36 | WRX(D/CX) | I | Write strobe / Data/Command select |
| 37 | D/CX(SCL) | I | Data/Command (or SPI clock) |
| 38 | CSX | I | 芯片选择(低电平有效) |
| 39 | TE | O | 撕裂效果输出 |
| 40-41 | IOVCC | P | I/O power supply (1.65~3.3V) |
| 42 | 虚拟通道标志符 | P | Analog power supply (2.5~3.3V) |
| 44-47 | XR、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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