Overview
The JicTech JV028T1CSR-03B is a compact 2.8‑inch TFT LCD module designed for handheld and industrial applications that require a bright display with integrated resistive touch. Built on a TN panel (normally white) with EWV polarizer, it offers 240×RGB×320 pixel resolution, 262K colors, and a 12 o’clock optimal viewing direction. The 18‑bit RGB parallel interface simplifies connection to most MCUs, while the 480 cd/m² backlight ensures excellent indoor readability. An integrated 4‑wire resistive touch panel (RTP) with anti‑glare surface treatment provides reliable touch input even with gloves. With a slim 3.25mm overall thickness, this module is ideal for portable medical devices, industrial HMIs, handheld terminals, and consumer electronics.
Key Features
- 2.8” diagonal TN panel – 12 o’clock best viewing direction (gray inversion)
- 240×320 resolution – sharp QVGA, 262K colors
- Module size – 50.00 × 69.20 × 3.25 mm (W×H×T)
- Active area – 43.20 × 57.60 mm
- High brightness – 480 cd/m² typical (430 cd/m² min)
- Contrast ratio – 500:1 typical
- Fast response time – 16ms typical (Tr+Tf)
- Integrated 4‑wire resistive touch – anti‑glare surface treatment, durable
- 18‑bit RGB parallel interface – easy integration with popular MCUs
- Wide operating temperature – -20℃ to +70℃
- Backlight – 4 white LEDs (parallel), 80mA total current
- Driver IC – ST7789V2 (well‑supported, mature)
- NTSC ratio – 55% typical
- 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 (Gray inversion) | 12 o’clock |
| Contrast Ratio | 500 : 1 (typical) |
| Luminance (Brightness) | 480 cd/m² (typical), 430 cd/m² (min) |
| Module Size (W×H×T) | 50.00 × 69.20 × 3.25 mm (±0.2) |
| Active Area (W×H) | 43.20 × 57.60 mm |
| Pixel Pitch | 0.18 × 0.18 mm |
| Driver IC | ST7789V2 |
| Interface | 18‑bit RGB (parallel) |
| Touch Panel | 4‑wire resistive touch (RTP), anti‑glare surface |
| Backlight | 4 white LEDs (parallel connection) |
| Operating Temperature | -20 ~ +70 °C |
| Storage Temperature | -30 ~ +80 °C |
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|
| Analog supply voltage | VCI | -0.3 | +4.6 | V |
| Logic supply voltage | VDDI | -0.3 | +4.6 | V |
| Input voltage range | VIN | -0.3 | VDDI+0.3 | V |
DC Characteristics (Ta=25°C)
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|
| Analog operating voltage | VDD | 2.5 | 2.8 | 3.3 | V |
| Logic operating voltage | VDDI | 1.65 | 2.8 | 3.3 | V |
| Input High Voltage | VIH | 0.7×VDDI | – | VDDI | V |
| Input Low Voltage | VIL | VSS | – | 0.3×VDDI | V |
Backlight Characteristics (Ta=25°C, constant current)
| Parameter | Symbol | Min | Typ | Max | Unit | Condition |
|---|
| Forward voltage | Vf | 2.8 | 3.0 | 3.3 | V | If=80mA |
| LED current (total) | If | – | 80 | – | mA | Constant current |
| White CIE (x) | x | 0.26 | 0.28 | 0.32 | – | If=80mA |
| White CIE (y) | y | 0.26 | 0.28 | 0.32 | – | If=80mA |
Optical Characteristics (Ta=25°C, If=80mA)
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|
| Contrast Ratio | CR | Normal angle | – | 500 | – | – |
| White Luminance (center) | Lv | Normal angle | 430 | 480 | – | cd/m² |
| Brightness Uniformity | δWHITE | – | 80 | – | – | % |
| Response Time (Tr+Tf) | – | TC=25°C | – | 16 | – | ms |
| White CIE (x) | Wx | Normal angle | 0.25 | 0.30 | 0.35 | – |
| White CIE (y) | Wy | Normal angle | 0.24 | 0.29 | 0.34 | – |
| Viewing Angle (3:00) | θL | CR≥10 | – | 45 | – | deg |
| Viewing Angle (9:00) | θR | CR≥10 | – | 45 | – | deg |
| Viewing Angle (6:00) | θU | CR≥10 | – | 50 | – | deg |
| Viewing Angle (12:00) | θD | CR≥10 | – | 20 | – | deg |
| NTSC Ratio | S | – | – | 55% | – | % |
Interface Pin Connection (40‑pin FPC – RGB + RTP)
| Pin No. | Symbol | I/O | Description |
|---|
| 1 | GND | P | System ground |
| 2 | LEDA | P | Backlight anode |
| 3-6 | LEDK1-LEDK4 | P | Backlight cathodes (4 LEDs parallel) |
| 7-10 | XR, YU, XL, YD | I/O | 4‑wire resistive touch panel signals |
| 11 | RESET | I | Reset (active low) |
| 12 | VSYNC | I | Vertical sync |
| 13 | HSYNC | I | Horizontal sync |
| 14 | DOTCLK | I | Pixel clock |
| 15 | ENABLE | I | Data enable |
| 16-21 | R0-R5 | I/O | Red data (6‑bit) |
| 22-27 | G0-G5 | I/O | Green data (6‑bit) |
| 28-33 | B0-B5 | I/O | Blue data (6‑bit) |
| 34 | SD0 | O | Serial data output (SPI) |
| 35 | SDI | I | Serial data input (SPI) |
| 36 | SCL | I | SPI clock |
| 37 | CS | I | Chip select (SPI) |
| 38 | IOVCC | P | I/O power supply (1.8~3.3V) |
| 39 | VCI | P | Analog power supply (2.8~3.3V) |
| 40 | GND | P | System ground |
Full 40‑pin pinout including RTP signals available in the datasheet. Interface voltage levels depend on IOVCC and GND.
Reliability & Quality Assurance
Reliability Test Items (Pass Criteria)
- High temperature storage: 80±2℃, 48H
- Low temperature storage: -30±2℃, 48H
- High temperature operation: 70±2℃, 48H
- Low temperature operation: -20±2℃, 48H
- Thermal shock: -20℃ ↔ 70℃, 30min each, 10 cycles
- ESD test: Air ±6kV / Contact ±4kV, 330Ω/150pF, 5 points each
MTBF: 20,000 hours @ room temperature (25±10℃, 40±20% RH).
Failure judgment: After test, contrast ratio ≥50% of initial value, no display defects, 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.
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 JV028T1CSR-03B 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-JV028T1CSR-03B
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