LS028I37-M-V1 – 2.8″ 240×320 TFT LCD, MCU/SPI Interface

1. General Description
The LS028I37-M-V1 is a transmissive type a-Si TFT-LCD module, composed of a TFT-LCD panel, a driver circuit, and a backlight unit. The panel size is 2.8 inches, resolution 240(RGB)×320, supporting up to 262k colors.

2. Mechanical Features

• Display Type: Transmissive a-Si TFT-LCD
• Module Type: COG+FPC+B/L
• Resolution: 240(RGB)×320
• Number of Colors: 262k
• Backlight: 4 Chip-White LED Parallel
• ROHS Compliance: Yes
• Tolerance of segments to edge of glass: ±0.2 mm

Assembly Recommendations (from spec):

• VA area suggested 0.3 mm smaller than housing opening on each side
• Foam opening suggested 0.6 mm larger than VA on each side
• TP edge must not contact metal conductors

3. Absolute Maximum Ratings

• VCC: -0.3 to 4.6 V
• IOVCC: -0.3 to 4.0 V
• Operating Temperature: -20 to 70 °C
• Storage Temperature: -30 to 80 °C

4. Electrical Characteristics

• VCC: 2.4 to 3.3 V (Typ. 2.8 V)
• IOVCC: 1.65 to 3.3 V (Typ. 1.8 V)
• VIH: ≥ 0.7×IOVCC
• VIL: ≤ 0.3×IOVCC

5. Interface & Pin Description

• Interface: MCU 8/9-bit parallel (8080) and 3/4-line serial SPI
• Key pins:
  • 1 (GND), 2 (LEDK), 3 (LEDA), 5 (VDD2.8V), 6 (WR), 7 (RD), 8 (CS), 9 (RS/SCL), 10 (SDA), 11-18 (D0-D7), 19 (RESET), 21 (IM0)

6. Timing Characteristics
All timings in 8080 parallel and 3/4-line serial interfaces are defined in the spec with parameters marked as TBD (to be confirmed by driver IC).

Reset Timing:

• Reset pulse duration (TRW): TBD µs
• Reset cancel time (TRT): TBD ms

7. Electro-Optical Characteristics (Ta=25°C)

• Response Time (Tr+Tf): ≤ 35 ms
• Contrast Ratio: Typ. 1500, Min. 1000
• Transmittance: Typ. 4.8%, Min. 4.5%
• White Chromaticity (CIE1931): x = 0.301, y = 0.320
• Viewing Angle (CR > 10): 85° (T/B/L/R)

Backlight Driving Condition: IF = 80 mA, Vf = 3.0 V (Typ.)

8. Records Of Version

• Revision: 1.0
• Release Date: 2026-04-25