Product Subtitle / Keywords:
3.45 Inch Display, 640(RGB)×480 Resolution, Transmissive a-Si TFT-LCD, MIPI Interface, COG+FPC+B/L, 16.7M Colors, 30-Pin, NV3052C Driver, 76.30×63.30×3.27 mm, 450 cd/m² Brightness, 800:1 Contrast Ratio, IPS, -20°C~70°C Operating Temperature
1. Executive Summary & Product Positioning
The LS035I10-MP-V1, developed by Lixin (Wan'an) Intelligent Display Technology Co., Ltd., is a 3.45-inch transmissive a-Si TFT-LCD module.
This product specification (Revision 1.0, Module Type: COG+FPC+B/L) defines its structural composition, physical features, mechanical dimensions, detailed electrical characteristics, complete MIPI interface pinout, and electro-optical performance. It delivers a resolution of 640(RGB)×480 with 16.7M-color display capability, driven by the NV3052C controller. The module features a high brightness of 450 cd/m² and a contrast ratio of 800:1.
The document provides the core parameters necessary for system integration. Engineers must strictly adhere to the electrical specifications, interface timing, and mechanical tolerances described herein to ensure reliable performance.
2. Detailed Product Overview & Architecture
- Core Technology: Transmissive-type a-Si TFT-LCD.
- Display Mode: Active matrix TFT, Transmissive, Mode Positive, Normally Black.
- Display Format: Graphic 640(RGB)×480 Dot-matrix.
- Display Characteristics: Capable of displaying up to 16.7 million colors.
- Module Construction: COG (Chip-On-Glass) + FPC + B/L (Backlight Unit).
- Input Data: MIPI.
- Viewing Direction: IPS (In-Plane Switching).
- Drive IC: NV3052C.
- Connector Pin Count: 30-Pin.
- Approval Status: ☑ Approved Product Specification only.
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Item | Specification | Unit |
|---|---|---|
| Module size (H×V×D) | 76.30 × 63.30 × 3.27 | mm |
| Active area (H×V) | 70.08 × 52.56 | mm |
| Number of dots / Resolution | 640(RGB) × 480 | pixel |
| Panel Size (Diagonal) | 3.45 | inch |
Critical Mechanical Design Notes:
- Display Type: 3.45", TFT LCD, IPS.
- Display Mode: Transmissive, Mode Positive, Normally Black.
- Viewing Direction: IPS.
- Driver IC: NV3052C.
- Operating Temperature: -20°C ~ 70°C.
- Storage Temperature: -30°C ~ 80°C.
- Backlight: 12 Chip-White LEDs.
- Environmental Protection: RoHS.
- General Tolerance: ±0.20 mm.
- Angular Tolerance: ∠ ±1/4°.
- FPC Total Thickness: PI补强+FPC总厚=0.30±0.03mm.
- Backlight Thickness: BL 3.27±0.2mm.
- Polarizer Thickness: POL 0.15mm.
- Silver Paste Points: Present on the module.
- Yellow Insulation Paper: Included for handling during assembly.
3.2 Electrical & Interface Specifications
3.2.1 Pin Description (30-pin FPC)
| PIN | SIGNAL | Description |
|---|---|---|
| 1 | LEDA | Backlight Anode |
| 2 | LEDK | Backlight Cathode |
| 3 | GND | Ground |
| 4 | D0N | MIPI-DSI Data signal input (Data lane 0) |
| 5 | D0P | MIPI-DSI Data signal input (Data lane 0) |
| 6 | GND | Ground |
| 7 | CLKN | MIPI-DSI Clock signal input |
| 8 | CLKP | MIPI-DSI Clock signal input |
| 9 | GND | Ground |
| 10 | D1N | MIPI-DSI Data signal input (Data lane 1) |
| 11 | D1P | MIPI-DSI Data signal input (Data lane 1) |
| 12 | GND | Ground |
| 13 | D2N | MIPI-DSI Data signal input (Data lane 2) |
| 14 | D2P | MIPI-DSI Data signal input (Data lane 2) |
| 15 | GND | Ground |
| 16 | D3N | MIPI-DSI Data signal input (Data lane 3) |
| 17 | D3P | MIPI-DSI Data signal input (Data lane 3) |
| 18 | GND | Ground |
| 19 | NC | No Connection |
| 20 | NC | No Connection |
| 21 | GND | Ground |
| 22 | NC | No Connection |
| 23 | GND | Ground |
| 24 | NC | No Connection |
| 25 | TE | Tearing Effect output |
| 26 | RESET | Reset input pin |
| 27 | SCL | I2C Serial Clock |
| 28 | SDA | I2C Serial Data |
| 29 | VCC | Power supply (2.8V) |
| 30 | GND | Ground |
Interface Summary:
- MIPI Interface: Uses 4 data lanes (D0-D3) and 1 clock lane for high-speed serial data transmission.
- Backlight: Dedicated LEDA (Pin 1) and LEDK (Pin 2) pins.
- Power: VCC (Pin 29) for main logic (2.8V), GND (Pins 3, 6, 9, 12, 15, 18, 21, 23, 30) for ground.
- Control: RESET (Pin 26) for hardware reset, TE (Pin 25) for tearing effect.
- I2C Interface: SCL (Pin 27) and SDA (Pin 28) for register configuration.
- Unused Pins: Pins 19, 20, 22, 24 are NC — leave floating.
3.2.2 Backlight Unit
| Item | Specification | Unit |
|---|---|---|
| LED Circuit | 12 Chip-White LEDs | — |
| Drive Condition | IF = 40mA, Vf = 16.8~19.2V | — |
3.3 Optical & Electro-Optical Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Brightness | L | — | — | 450 | — | cd/m² |
| Contrast Ratio | CR | θx = θy = 0 | — | 800 | — | — |
4. Application Guidelines & Critical Notes
Intended Use
- Industrial control panels and HMIs
- Medical instruments and diagnostic equipment
- Point-of-sale (POS) terminals
- Any application requiring a standard VGA resolution display with high brightness and wide viewing angles
Critical Design Considerations
-
Interface (MIPI): This module uses a MIPI-DSI interface with 4 data lanes and 1 clock lane. The host MCU must have a MIPI-DSI controller that supports at least 4 data lanes.
-
Power Supply:
- Provide stable VCC (2.8V) for the main logic (connected to Pin 29).
- The backlight requires a constant-current LED driver connected to LEDA (Pin 1) and LEDK (Pin 2), set to 40 mA at approximately 16.8V to 19.2V.
-
Mechanical Integration:
- Module Outline: 76.30mm (H) × 63.30mm (V) × 3.27mm (D).
- Active Area: 70.08mm × 52.56mm.
- FPC: The module uses a 30-pin FPC.
-
Optical Performance:
- IPS Display: Offers wide viewing angles with no grayscale inversion.
- High Brightness: 450 cd/m² (Typ) ensures excellent readability in bright environments.
- High Contrast Ratio: 800:1 (Typ) for sharp and clear images.
-
Temperature Limits:
- Operating Temperature: -20°C to +70°C.
- Storage Temperature: -30°C to +80°C.
Handling & Compliance
- The module is RoHS compliant.
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass and a 30-pin FPC – handle with care.
5. Conclusion & Design-In Support
The LS035I10-MP-V1 specification details a high-performance 3.45-inch VGA display module with a MIPI interface, NV3052C driver, and IPS technology — an excellent choice for applications requiring high brightness and wide viewing angles.
Key Strengths:
- Standard VGA Resolution (640x480): Widely supported by many MCUs and graphics libraries.
- MIPI Interface with 4 Data Lanes: Provides high bandwidth for smooth video playback.
- High Brightness: 450 cd/m² (Typ) ensures excellent readability.
- Excellent Contrast Ratio: 800:1 (Typ) provides outstanding image quality.
- IPS Technology: Provides superior, consistent image quality from any viewing angle.
- I2C Interface: The module includes an I2C interface for register configuration.
Main Design Focus:
- The critical design task is properly implementing the MIPI-DSI interface with 4 data lanes to ensure reliable high-speed data transfer.
- Supporting requirements:
- Provide stable VCC (2.8V) power.
- Provide a constant-current backlight driver set to 40 mA at 16.8-19.2V.
- Mechanical integration — the module outline is 76.30mm × 63.30mm × 3.27mm.
- FPC connector — verify the 30-pin FPC.
This module is an excellent choice for industrial, medical, and any embedded application requiring a high-brightness VGA display with excellent image quality and wide viewing angles.
