Overview
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.
Key Features
- 2.8” diagonal TN panel – 6 o’clock best viewing direction
- 240×320 resolution – sharp QVGA, 262K colors
- Module size – 50.0 × 69.2 × 3.65 mm (W×H×T)
- Active area – 43.2 × 57.6 mm
- 16‑bit MCU parallel interface (8080) – fast, compatible with most MCUs
- High brightness – 400 cd/m² typical – excellent indoor and shaded outdoor readability
- Contrast ratio – 400:1 typical
- Response time – 30ms typical (Tr+Tf)
- Integrated 4‑wire resistive touch – reliable, glove‑friendly
- Wide operating temperature – -20℃ to +70℃
- Backlight – 4 white LEDs (series), 80mA total current
- Driver IC – ILI9341V (well‑supported, mature)
- 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 with touch interface
Technical Specifications
General Specifications
| Parameter | Value |
|---|
| LCD Size | 2.8 inch |
| Panel Type | a-Si TFT active matrix, TN (Normally White) |
| Resolution | 240 (RGB) × 320 pixels |
| Display Mode | TN / Normally White / Transmissive |
| Number of Colors | 262K (6‑bit per color) |
| Viewing Direction | 6 o’clock (best view) |
| Contrast Ratio | 400 : 1 (typical) |
| Luminance (Brightness) | 400 cd/m² (typical), 350 cd/m² (min) |
| Module Size (W×H×T) | 50.0 × 69.2 × 3.65 mm |
| Active Area (W×H) | 43.2 × 57.6 mm |
| Pixel Pitch | 0.153 × 0.153 mm |
| Driver IC | ILI9341V |
| Interface | 80‑style MCU 16‑bit parallel |
| Touch Panel | 4‑wire resistive touch (RTP) |
| Backlight | 4 white LEDs (series connection) |
| Operating Temperature | -20 ~ +70 °C |
| Storage Temperature | -30 ~ +80 °C |
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|
| Operating temperature | Top | -20 | +70 | °C |
| Storage temperature | Tst | -30 | +80 | °C |
| Humidity | RH | – | 90 (at 60°C) | % |
DC Characteristics (Ta=25°C)
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|
| Logic supply voltage | 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 |
| Input High Voltage | VIH | 0.7×IOVCC | – | IOVCC | V |
| Input Low Voltage | VIL | VSS | – | 0.3×IOVCC | V |
Backlight Characteristics (Ta=25°C, constant current)
| Parameter | Symbol | Min | Typ | Max | Unit | Condition |
|---|
| Forward voltage | Vf | 3.0 | 3.2 | – | V | If=80mA |
| LED current (total) | If | – | 80 | – | mA | 4 LEDs series |
Optical Characteristics (Ta=25°C)
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|
| Contrast Ratio | CR | Normal angle | – | 400 | – | – |
| Luminance (center) | Lv | Normal angle | 350 | 400 | – | cd/m² |
| Luminance Uniformity | δ WHITE | – | 80 | – | – | % |
| Response Time (Tr+Tf) | – | TC=25°C | – | 30 | – | ms |
| Viewing Angle (3:00/9:00) | θ | CR≥10 | – | 70 | – | deg |
| Viewing Angle (6:00) | θ | CR≥10 | – | 70 | – | deg |
| Viewing Angle (12:00) | θ | CR≥10 | – | 55 | – | deg |
| White CIE (x,y) | Wx, Wy | Normal angle | 0.25,0.25 | – | 0.33,0.33 | – |
| NTSC Ratio | S | – | – | 56% | – | % |
Interface Pin Connection (40‑pin FPC – MCU Parallel + RTP, partial)
1-4YU, XL, YD, XRI/O4‑wire resistive touch panel signals
| Pin No. | Symbol | I/O | Description |
|---|
| 5 | GND | P | System ground |
| 6 | CS | I | Chip select (active low) |
| 7 | RS | I | Register select (1=data, 0=command) |
| 8 | WR | I | Write strobe (active low) |
| 9 | RD | I | Read strobe (active low) |
| 10 | GND | P | System ground |
| 11-26 | DB00-DB15 | I/O | 16‑bit data bus |
| 27 | GND | P | System ground |
| 28 | /RSTB | I | Reset (active low) |
| 29 | GND | P | System ground |
| 30 | IOVCC | P | I/O power supply (1.8V or 2.8V) |
| 31 | VCC | P | Analog power supply (2.8V) |
| 32 | LED-A | P | Backlight anode |
| 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).
Reliability & Quality Assurance
Reliability Test Items (Pass Criteria)
- 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
Failure judgment: No display defects, no glass crack, current Idd < 2x initial value, contrast ratio ≥50% of initial, and full electrical/optical functionality.
Quality Assurance (per GB2828 / MIL-STD-105E equivalent)
- Inspection level: General II, single sampling
- Major defect AQL: 0.25
- Minor defect AQL: 0.65
- Inspection conditions: distance 250mm, temperature 25±5°C, angle 45°
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: 0~35°C, 40~60% RH, in sealed polyethylene bag, no direct sunlight.
- Hand soldering: 320℃~350℃, max 10 seconds per pad, avoid repeated heating.
- Do not disassemble or modify the module – warranty void.
Packing Method
Modules are placed in anti‑static trays, stacked with foam protection, fixed with cardboard, and sealed in cartons. Detailed packing drawings available upon request.
Ordering & Support
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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