概述
The JicTech RT028TR5T-F01B is a high‑brightness 2.8‑inch TFT LCD module with integrated 4‑wire resistive touch, designed for embedded applications that require a fast parallel interface and reliable touch input. Built on a TN panel (normally white), it offers 240×RGB×320 pixel resolution (QVGA), 262K colors, and a 6 o’clock optimal viewing direction. The 16‑bit MCU parallel interface (8080‑style) enables high‑speed data transfer and easy connection to popular microcontrollers. An integrated 4‑wire resistive touch panel provides precise input even with gloves. With 400 cd/m² typical brightness, 400:1 contrast ratio, and a compact 3.65mm 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, 262K colors
- 模块尺寸 – 50.0 × 69.2 × 3.65 mm (W×H×T)
- 活动区域 – 43.2 × 57.6 mm
- 16‑bit MCU parallel interface (8080) – fast, compatible with most MCUs
- 高亮度 – 400 cd/m² typical – excellent indoor and shaded outdoor readability
- Contrast ratio – 400:1 typical
- 响应时间 - 30ms 典型值（Tr+Tf）
- Integrated 4‑wire resistive touch – reliable, glove‑friendly
- 宽工作温度 -20℃至+70
- 背光 – 4 white LEDs (series), 80mA total current
- 驱动集成电路 – ILI9341V (well‑supported, mature)
- 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
| 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 | 262K (6‑bit per color) |
| 观看方向 | 6 o’clock (best view) |
| 对比度 | 400 : 1 (typical) |
| 亮度（亮度） | 400 cd/m² (typical), 350 cd/m² (min) |
| 模块尺寸（宽×高×长） | 50.0 × 69.2 × 3.65 mm |
| 有效面积（宽×高） | 43.2 × 57.6 mm |
| 像素间距 | 0.153 × 0.153 毫米 |
| 驱动集成电路 | ILI9341V |
| 界面 | 80‑style MCU 16‑bit parallel |
| 触摸屏 | 4 线电阻式触摸 (RTP) |
| 背光 | 4 white LEDs (series 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 | VCC/VCI | 2.7 | 2.8 | 2.9 | V |
| I/O power supply | IOVCC | 1.7/2.7 | 1.8/2.8 | 1.9/2.9 | V |
| 输入高电压 | VIH | 0.7×IOVCC | - | IOVCC | V |
| 输入低电压 | VIL | VSS | - | 0.3×IOVCC | 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 | 3.0 | 3.2 | - | V | 如果=80 毫安 |
| LED current (total) | 如果 | - | 80 | - | 毫安 | 4 LEDs series |
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 | - | - |
| Luminance (center) | Lv | 正常角度 | 350 | 400 | - | cd/m² |
| 亮度均匀性 | δ白色 | - | 80 | - | - | % |
| 响应时间 (Tr+Tf) | - | TC=25°C | - | 30 | - | 毫秒 |
| Viewing Angle (3:00/9:00) | θ | CR≥10 | - | 70 | - | 退化 |
| 视角（6:00） | θ | CR≥10 | - | 70 | - | 退化 |
| 视角 (12:00) | θ | CR≥10 | - | 55 | - | 退化 |
| 白色 CIE (x,y) | Wx, Wy | 正常角度 | 0.25,0.25 | - | 0.33,0.33 | - |
| NTSC 比率 | S | - | - | 56% | - | % |
Interface Pin Connection (40‑pin FPC – MCU Parallel + RTP, partial)
1-4YU, XL, YD, XRI/O4‑wire resistive touch panel signals
| 针脚编号. | 符号 | 输入/输出 | 说明 |
|---|
| 5 | 接地 | P | 系统接地 |
| 6 | CS | I | 芯片选择（低电平有效） |
| 7 | RS | I | Register select (1=data, 0=command) |
| 8 | WR | I | Write strobe (active low) |
| 9 | RD | I | Read strobe (active low) |
| 10 | 接地 | P | 系统接地 |
| 11-26 | DB00-DB15 | 输入/输出 | 16‑bit data bus |
| 27 | 接地 | P | 系统接地 |
| 28 | /RSTB | I | 复位（低电平有效） |
| 29 | 接地 | P | 系统接地 |
| 30 | IOVCC | P | I/O power supply (1.8V or 2.8V) |
| 31 | VCC | P | Analog power supply (2.8V) |
| 32 | LED-A | P | 背光阳极 |
| 33-36 | LED-K1~K4 | P | Backlight cathodes (4 LEDs series) |
Full 40‑pin pinout includes additional NC and ground pins. Interface voltage levels depend on IOVCC selection (1.8V or 2.8V).
可靠性和质量保证
可靠性测试项目（通过标准）
- High temperature storage: 80±2℃, 192H
- Low temperature storage: -30±2℃, 192H
- High temperature operation: 70±2℃, 96H
- Low temperature operation: -20±2℃, 96H
- Temperature cycle: -20℃ ↔ 70℃, 2 cycles with 5min room temp dwell
- Damp proof test: 60℃ / 90% RH, 72H
- Mechanical vibration: 10Hz~55Hz~10Hz, 1.5mm, X/Y/Z, 0.5H (packed)
- Drop test: 1.0m height, one time each side (packed)
- ESD test: Air ±4kV / Contact ±2kV, 330Ω/150pF, 10 times each
失败判断： No display defects, no glass crack, current Idd < 2x initial value, contrast ratio ≥50% of initial, and full electrical/optical functionality.
质量保证（符合 GB2828 / MIL-STD-105E 同等标准）
- 检查级别：一般 II 级，单一抽样
- Major defect AQL: 0.25
- Minor defect AQL: 0.65
- Inspection conditions: distance 250mm, temperature 25±5°C, angle 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 - 保修无效。.
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-F01B 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-F01B
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