Overview
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.
Key Features
- 2.8” diagonal TFT panel – 6 o’clock best viewing direction
- 240×320 resolution – sharp QVGA, 65K colors
- Module size – 50.0 × 69.2 × 2.7 mm (W×H×T)
- Active area – 43.2 × 57.6 mm
- Flexible interface – 18‑bit RGB (parallel) + SPI – configurable via SPI, fast video via RGB
- High brightness – 350 cd/m² typical – excellent indoor readability
- Contrast ratio – 300:1 typical
- Fast response time – 25ms typical (Tr+Tf)
- Wide operating temperature – -20℃ to +70℃
- Backlight – 4 white LEDs, 20mA per LED, 80mA total
- Driver IC – ILI9341V (well‑supported, mature)
- MTBF – 50,000 hours
- RoHS compliant
Applications
- Portable medical devices (patient monitors, diagnostic tools)
- Industrial HMIs & control panels
- Handheld test & measurement equipment
- Smart home gateways & security panels
- Automotive auxiliary displays
- Consumer electronics (MP4 players, digital photo frames)
Technical Specifications
General Specifications
Interface18‑bit RGB + SPI
| Parameter | Value |
|---|
| LCD Type | TFT Transmissive |
| Driver Element | a-Si TFT Active matrix |
| Resolution | 240 (RGB) × 320 pixels |
| Pixel Arrangement | RGB Vertical Stripe |
| Active Area (W×H) | 43.2 × 57.6 mm |
| Viewing Direction | 6 o’clock |
| Driver IC | ILI9341V |
| Module Size (W×H×T) | 50 × 69.2 × 2.7 mm |
| Backlight | 4 white LEDs |
| Operating Temperature | -20 ~ +70 °C |
| Storage Temperature | -30 ~ +80 °C |
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|
| Supply voltage (logic) | Vcc | -0.3 | 3.3 | V |
| Input voltage (logic) | Vin | -0.5 | Vcc+0.3 | V |
| Supply current (per LED) | ILED | – | 30 | mA |
| Operating temperature | TOP | -20 | +70 | °C |
| Storage temperature | TST | -30 | +80 | °C |
DC Characteristics (Ta=25°C)
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|
| Supply voltage (logic) | Vcc | 2.5 | 2.8 | 3.3 | V |
| Input High Voltage | VIH | 0.8×Vcc | – | Vcc | V |
| Input Low Voltage | VIL | -0.3 | – | 0.2×Vcc | V |
| LED forward voltage | Vf | 3.0 | 3.2 | 3.4 | V |
| Backlight current (total) | ILED | – | 15 | 20 | mA |
Note: ILED is per LED, typical 15-20mA; total backlight current 60-80mA for 4 LEDs in parallel (typical configuration).
Optical Characteristics (Ta=25°C)
Contrast RatioCRNormal angle-300–
Interface Pin Connection (40‑pin FPC – RGB+SPI, partial)
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|
| Brightness | B | Normal angle | 315 | 350 | – | cd/m² |
| Response Time (Tr+Tf) | – | – | – | 25 | – | ms |
| Viewing Angle (Horizontal) | θx | CR≥10 | 50/- | 60 | – | deg |
| Viewing Angle (Vertical) | θy | CR≥10 | 55/- | 60 | – | deg |
| Uniformity | – | – | 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.
Reliability & Quality Assurance
Reliability Test Items (Pass Criteria)
- 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).
Failure judgment: After test, contrast ratio ≥50% of initial value, no display defects, current consumption within spec.
Quality Assurance (per MIL-STD-105E)
- Inspection level: General II, single sampling
- Major defect AQL: 0.65
- Minor defect AQL: 2.5
- Total defects AQL: 2.5
- Inspection conditions: 20W×2 fluorescent light, distance 30±5cm, temperature 25±5℃, humidity 60±10% RH
Handling & Storage Precautions
- Avoid mechanical shock or dropping – glass panel is fragile.
- If LCD fluid leaks, wash skin/clothes immediately with soap and water; do not ingest.
- Use grounded workstations and anti‑static bags for handling and storage.
- Storage: 25±10℃, 50±10% RH, no direct sunlight or fluorescent light.
- Hand soldering: 280±10℃, max 3 seconds, max 2 reworks.
- Do not disassemble or modify the module.
Packing Method
10pcs per tray, 10 trays per small box (100pcs), 30 trays per large box (300pcs). Tray thickness 0.8mm.
Ordering & Support
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
📩 Request a quote or sample – email us today or use the inquiry form below.
| Pin No. | Symbol | Description |
|---|
| 1 | GND | System ground |
| 2 | LEDA | Backlight anode |
| 3-6 | LEDK1~K4 | Backlight cathodes |
| 7-10 | XR, YU, XL, YD | Resistive touch (not populated on this variant) |
| 11 | RESET | Reset (active low) |
| 12 | VSYNC | Vertical sync (RGB mode) |
| 13 | HSYNC | Horizontal sync |
| 14 | DOTCLK | Pixel clock |
| 15 | ENABLE | Data enable |
| 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 clock |
| 37 | CS | Chip select (SPI) |
| 38 | IOVCC | I/O power supply (1.8V or 2.8V) |
| 39 | VCC | Analog power supply (2.8V) |
| 40 | GND | System ground |
