Product Subtitle / Keywords:
3.45 Inch Display, 640(RGB)×480 Resolution, Transmissive a-Si TFT-LCD, RGB Interface, COG+FPC+B/L, 16.7M Colors, 1.8V IOVCC, 2.5V~6.2V VCI
1. Executive Summary & Product Positioning
The LS035I05-MP-V1, developed by Lixin (Wan'an) Intelligent Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 3.45-inch transmissive color active matrix TFT (Thin Film Transistor) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device.
This product specification serves as the definitive technical document, defining its structural composition (TFT-LCD module, driver IC and FPC, back-light unit), physical features, and detailed electrical characteristics. It delivers a resolution of 640(RGB)×480 with 16.7M-color display capability.
The document provides the core parameters necessary for system integration into embedded display applications. The unequivocal recommendation for engineers is to strictly adhere to the electrical specifications and mechanical tolerances described herein to ensure reliable performance and compatibility.
2. Detailed Product Overview & Architecture
- Core Technology: Transmissive type color active matrix TFT (Thin Film Transistor) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device.
- Display Mode: Active matrix TFT-LCD module (TFT-LCD panel, driver IC and FPC), a back-light unit.
- Display Format: Graphic 640(RGB)×480 Dot-matrix.
- Display Characteristics: Capable of displaying up to 16.7 million colors.
- Module Construction: TFT-LCD module (TFT-LCD panel, driver IC and FPC) + Back-light unit.
- Input Data: RGB Interface (implied by the resolution and typical usage).
3. Exhaustive Technical Specifications
3.1 General Information
(Ta=25±2°C)
| Characteristics | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| Power Supply Voltage 1 | IOVCC | 1.65 | 1.8 | 2.0 | V | |
| Power Supply Voltage 2 | VCI | 2.5 | - | 6.2 | V | |
| Power Supply Voltage 3 | - | - | - | - | V | |
| Power Supply for MTP | VPP | - | - | - | V | |
| Current Consumption | $I_{DD}$ | - | TBD | - | mA | Normal mode |
| Current Consumption | $I_{DD-SLEEP}$ | - | TBD | - | uA | Sleep mode |
| Input voltage "L" Level | $V_{IL}$ | GND | - | 0.3IOVCC | V | IOVCC=1.65~3.3 |
| Input voltage "H" Level | $V_{IH}$ | 0.7IOVCC | - | IOVCC | V | IOVCC=1.65~3.3 |
| Output voltage "L" Level | $V_{oL}$ | GND | - | 0.2IOVCC | V | $I_{oL}$=1mA |
| Output voltage "H" Level | $V_{oH}$ | 0.8IOVCC | - | IOVCC | V | $I_{OH}$=-1mA |
3.2 Mechanical & Physical Specifications
(Not explicitly provided in the extracted document excerpt; refer to the full specification for detailed mechanical drawings.)
| Item | Specification | Unit |
|---|---|---|
| Panel Size (Diagonal) | 3.45 | inch |
| Number of dots / Resolution | 640(RGB) × 480 | pixel |
| Display Colors | 16.7M | colors |
4. Application Guidelines & Critical Notes
Intended Use
- Industrial control panels and human-machine interfaces (HMIs)
- Medical instruments and diagnostic equipment
- Point-of-sale (POS) terminals
- Any application requiring a standard VGA resolution display
Critical Design Considerations
-
Power Supply:
- Provide stable IOVCC (1.65V to 2.0V, 1.8V typical) for the I/O interface.
- Provide stable VCI (2.5V to 6.2V) for the main logic power supply.
- The wide VCI range (2.5V to 6.2V) provides flexibility for different system power architectures.
-
Interface:
- This module uses an RGB interface for high-speed data transmission. The host MCU must have an RGB LCD controller to drive the display.
-
Mechanical Integration:
- Panel Size: 3.45 inches diagonal.
- Resolution: 640×480 (VGA) – a standard resolution widely supported by many MCUs and graphics libraries.
-
Optical Performance:
- Resolution: 640×480 (VGA) – standard resolution for industrial and embedded applications.
- Display Colors: Up to 16.7M colors (24-bit true color).
Handling & Compliance
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass and an FPC – handle with care.
- Avoid bending the FPC sharply, especially near the connector interface.
5. Conclusion & Design-In Support
The LS035I05-MP-V1 specification details a standard 3.45-inch VGA display module with an RGB interface — an excellent choice for applications requiring a standard VGA resolution display with 16.7M color support.
Key Strengths:
-
Standard VGA Resolution (640x480): Widely supported by many MCUs and graphics libraries, simplifying software development.
-
High Color Depth: 16.7M colors (24-bit true color) provides excellent color reproduction.
-
Wide VCI Range: The 2.5V to 6.2V VCI range provides flexibility for different system power architectures.
-
Standard 3.45-inch Size: Suitable for a wide range of industrial and embedded applications.
Main Design Focus:
- The critical design task is properly implementing the RGB interface timing to ensure reliable high-speed data transfer.
- Supporting requirements:
- Provide stable IOVCC (1.8V typical) and VCI (2.5V to 6.2V) power.
- Mechanical integration — verify the module dimensions from the full specification.
This module is an excellent choice for industrial control panels, medical instruments, and any embedded application requiring a standard VGA resolution display with high color depth.
