概述
The JicTech RT280A4004 is a compact 2.8‑inch TFT LCD module designed for embedded applications that demand a bright display with flexible interface options. Built on a transmissive TFT panel (normally white), it offers 240×RGB×320 pixel resolution (QVGA), 65K colors, and a 6 o’clock optimal viewing direction. The dual interface supports both 18‑bit RGB parallel for high‑speed video and SPI for easy configuration, fitting a wide range of MCUs and processors. With 350 cd/m² typical brightness, 300:1 contrast ratio, and an ultra‑thin 2.7mm profile, this module is ideal for handheld devices, medical equipment, portable terminals, industrial control panels, and consumer electronics.
主要功能
- 2.8” diagonal TFT panel – 6 o’clock best viewing direction
- 240×320 resolution – sharp QVGA, 65K colors
- 模块尺寸 – 50.0 × 69.2 × 2.7 mm (W×H×T)
- 活动区域 – 43.2 × 57.6 mm
- Flexible interface – 18‑bit RGB (parallel) + SPI – configurable via SPI, fast video via RGB
- 高亮度 – 350 cd/m² typical – excellent indoor readability
- Contrast ratio – 300:1 typical
- 快速响应时间 – 25ms typical (Tr+Tf)
- 宽工作温度 -20℃至+70
- 背光 – 4 white LEDs, 20mA per LED, 80mA total
- 驱动集成电路 – ILI9341V (well‑supported, mature)
- MTBF – 50,000 hours
- 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 (MP4 players, digital photo frames)
技术规格
一般规格
Interface18‑bit RGB + SPI
| 参数 | 价值 |
|---|
| 液晶类型 | TFT 透射式 |
| Driver Element | a-Si TFT Active matrix |
| 决议 | 240 (RGB) × 320 pixels |
| 像素排列 | RGB 垂直条纹 |
| 有效面积（宽×高） | 43.2 × 57.6 mm |
| 观看方向 | 6 o’clock |
| 驱动集成电路 | ILI9341V |
| 模块尺寸（宽×高×长） | 50 × 69.2 × 2.7 mm |
| 背光 | 4 white LEDs |
| 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 |
|---|
| 电源电压（逻辑） | Vcc | -0.3 | 3.3 | V |
| 输入电压（逻辑） | 文 | -0.5 | Vcc+0.3 | V |
| Supply current (per LED) | ILED | - | 30 | 毫安 |
| 工作温度 | 返回顶部 | -20 | +70 | °C |
| 储存温度 | TST | -30 | +80 | °C |
DC Characteristics (Ta=25°C)
| 参数 | 符号 | 最小 | 类型 | 最大 | 单位 |
|---|
| 电源电压（逻辑） | Vcc | 2.5 | 2.8 | 3.3 | V |
| 输入高电压 | VIH | 0.8×Vcc | - | Vcc | V |
| 输入低电压 | VIL | -0.3 | - | 0.2×Vcc | V |
| LED 正向电压 | Vf | 3.0 | 3.2 | 3.4 | V |
| Backlight current (total) | ILED | - | 15 | 20 | 毫安 |
Note: ILED is per LED, typical 15-20mA; total backlight current 60-80mA for 4 LEDs in parallel (typical configuration).
光学特性（Ta=25°C）
Contrast RatioCRNormal angle-300–
Interface Pin Connection (40‑pin FPC – RGB+SPI, partial)
| 项目 | 符号 | 条件 | 最小 | 类型 | 最大 | 单位 |
|---|
| 亮度 | B | 正常角度 | 315 | 350 | - | cd/m² |
| 响应时间 (Tr+Tf) | - | - | - | 25 | - | 毫秒 |
| 视角（水平） | θx | CR≥10 | 50/- | 60 | - | 退化 |
| 视角（垂直） | θy | CR≥10 | 55/- | 60 | - | 退化 |
| 统一性 | - | - | 85 | - | - | % |
Full 40‑pin pinout includes resistive touch pins (not used on this model). SPI pins (CS, SCL, SDI, SDO) are used for command/configuration.
可靠性和质量保证
可靠性测试项目（通过标准）
- High temperature operation: 60℃, 120H
- Low temperature operation: -10℃, 120H
- High temperature storage: 70℃, 240H
- Low temperature storage: -20℃, 240H
- Moisture storage: 60℃ / 90% RH, 240H
- Thermal shock: -30℃ ↔ 80℃, 30min each, 10 cycles
- Packing vibration: 10Hz~55Hz~10Hz, 1.5mm, X/Y/Z, 2H each
- Package drop per ASTM-D-5327
- ESD: Air ±4kV / Contact ±2kV, 330Ω/150pF, 5 times each
MTBF： 50,000 hours @ room temperature (25±5℃, 50±10% RH).
失败判断： After test, contrast ratio ≥50% of initial value, no display defects, current consumption within spec.
质量保证（符合 MIL-STD-105E 标准）
- 检查级别：一般 II 级，单一抽样
- 主要缺陷 AQL：0.65
- 轻微缺陷 AQL： 2.5
- 总缺陷 AQL： 2.5
- Inspection conditions: 20W×2 fluorescent light, distance 30±5cm, temperature 25±5℃, humidity 60±10% RH
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。.
- Storage: 25±10℃, 50±10% RH, no direct sunlight or fluorescent light.
- Hand soldering: 280±10℃, max 3 seconds, max 2 reworks.
- 请勿拆卸或改装模块。.
Packing Method
10pcs per tray, 10 trays per small box (100pcs), 30 trays per large box (300pcs). Tray thickness 0.8mm.
订购与支持
The JicTech RT280A4004 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-RT280A4004
📩 索取报价或样品--立即给我们发送电子邮件或使用下面的咨询表。.
| 针脚编号. | 符号 | 说明 |
|---|
| 1 | 接地 | 系统接地 |
| 2 | LEDA | 背光阳极 |
| 3-6 | LEDK1~K4 | Backlight cathodes |
| 7-10 | XR、YU、XL、YD | Resistive touch (not populated on this variant) |
| 11 | 重置 | 复位（低电平有效） |
| 12 | VSYNC | Vertical sync (RGB mode) |
| 13 | HSYNC | 水平同步 |
| 14 | DOTCLK | 像素时钟 |
| 15 | 启用 | 数据启用 |
| 16-21 | R0-R5 | Red data (6 bits) |
| 22-27 | G0-G5 | Green data (6 bits) |
| 28-33 | B0-B5 | Blue data (6 bits) |
| 34 | SDO | SPI data out |
| 35 | SDI/SDA | SPI data in |
| 36 | SCL | SPI 时钟 |
| 37 | CS | Chip select (SPI) |
| 38 | IOVCC | I/O power supply (1.8V or 2.8V) |
| 39 | VCC | Analog power supply (2.8V) |
| 40 | 接地 | 系统接地 |
