LS080I04-MP-V1: 8.0-Inch TFT LCD Module, 800×1280 Resolution, COG+FPC+B/L, 4-Lane MIPI Interface, 16.7M Colors
Product Subtitle / Keywords
8.0 Inch Display, 800(RGB)×1280 Resolution, a-Si TFT-LCD Module, 4-Lane MIPI DSI Interface, COG+FPC+B/L, Transmissive Type, Display Colors 16.7M, Viewing Angle FULL VIEW, Luminance 250cd/m² (MIN), 280cd/m² (TYP), Uniformity 80%, Backlight 21 Chip White LED (In Series, If=140mA), Operating Temp -10°C~+50°C, Storage Temp -20°C~+60°C, Reset Signal 1.8V, VDDIO 1.8V, VDD 3.3V, Lesson Smart Display Technology Co., Ltd
1. Executive Summary & Product Positioning
The LS080I04-MP-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is an 8.0-inch transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module.
This product specification (Revision 1.0) serves as the definitive technical document, defining its general description (including an 800×1280 resolution and 16.7M color display), physical features (FULL VIEW viewing angle, COG+FPC+B/L construction), outline dimensions, absolute maximum ratings, electrical characteristics, pin assignments for the 31-pin MIPI interface, and detailed MIPI timing parameters.
The document provides the core parameters necessary for system integration into embedded display applications requiring an 8.0-inch screen with a standard 4-lane MIPI interface. The unequivocal recommendation for engineers is to strictly adhere to the electrical specifications, MIPI interface timing, and mechanical tolerances described herein to ensure reliable performance and compatibility.
2. Detailed Product Overview & Architecture
- Core Technology: Transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module, which is composed of a TFT-LCD panel, a driver circuit and a backlight unit.
- Display Type: TFT/Transmissive/Normal Black.
- Display Format: Graphic 800(RGB) × 1280 pixel array.
- Module Construction: COG+FPC+B/L (Chip-On-Glass + Flexible Printed Circuit + Backlight).
- Interface Type: 4-Lane MIPI DSI (MIPI_D0 to MIPI_D3, plus MIPI_CLK).
- Viewing Angle: FULL VIEW.
- Backlight: 21 Chip White LED, In Series, If=140mA.
- Display Colors: Up to 16.7M colors.
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Module Model | LS080I04-MP-V1 |
| LCD Size (Diagonal) | 8.0 inch |
| Resolution | 800(RGB) × 1280 pixels |
| Display Type | Transmissive a-Si TFT-LCD |
| Display Mode | TFT/Transmissive/Normal Black |
| Viewing Angle | FULL VIEW |
| Module Type | COG+FPC+B/L |
| Backlight Type | 21 Chip White LED, In Series |
| Display Colors | Up to 16.7M colors |
| PIN Count | 31 |
| Operating Temperature | -10°C ~ +50°C |
| Storage Temperature | -20°C ~ +60°C |
| Luminance | 250cd/m² (MIN) / 280cd/m² (TYP) |
| Uniformity | 80% |
| Supplier | 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co.,Ltd) |
| Document Revision / Date | Revision 1.0 |
3.2 Electrical & Interface Specifications
3.2.1 Pin Description (31-pin Connector - MIPI DSI Interface)
The module uses a 31-pin interface with a 4-lane MIPI DSI configuration.
| PIN No. | SYMBOL | Function |
|---|---|---|
| 1, 2, 3 | LEDA | Anode for light bar (Backlight Power +) |
| 4 | NC | No connection |
| 5, 6, 7, 8 | LEDK | Cathode for light bar (Backlight Power -) |
| 9, 10 | GND | Ground |
| 11 | MIPI_D2+ | MIPI differential data2 input (Positive) |
| 12 | MIPI_D2- | MIPI differential data2 input (Negative) |
| 13 | GND | Ground |
| 14 | MIPI_D1+ | MIPI differential data1 input (Positive) |
| 15 | MIPI_D1- | MIPI differential data1 input (Negative) |
| 16 | GND | Ground |
| 17 | MIPI_CLK+ | MIPI differential clock input (Positive) |
| 18 | MIPI_CLK- | MIPI differential clock input (Negative) |
| 19 | GND | Ground |
| 20 | MIPI_D0+ | MIPI differential data0 input (Positive) |
| 21 | MIPI_D0- | MIPI differential data0 input (Negative) |
| 22 | GND | Ground |
| 23 | MIPI_D3+ | MIPI differential data3 input (Positive) |
| 24 | MIPI_D3- | MIPI differential data3 input (Negative) |
| 25 | GND | Ground |
| 26 | TE | Tearing Effect pin |
| 27 | RESET | Device reset signal 1.8V |
| 28 | NC | No connection |
| 29 | VDDIO 1.8V | 1.8V input (I/O Power) |
| 30, 31 | VDD 3.3V | 3.3V input (Logic Power) |
3.2.2 Backlight & Drive Conditions
The module uses a 21 Chip White LED backlight configured In Series.
| Parameter | Condition | Value | Unit |
|---|---|---|---|
| Forward Current (If) | For LED backlight (In Series) | 140 | mA |
Note: The backlight is driven by a constant current source. The specification section shows the backlight as a series configuration of 21 LEDs.
3.2.3 MIPI DSI Timing Parameters
The specification includes detailed timing parameters for the MIPI D-PHY interface, covering High Speed (HS) and Low Power (LP) modes. Key parameters include:
- Data to Clock Setup/Hold Time: T_SETUP [RX] = 0.15 UI_MIN, T_HOLD [RX] = 0.15 UI_MIN
- LP-RX and LP-TX voltage levels: Specific thresholds defined for logic high and low levels.
- HS-RX Common Mode Input Range: Referenced in the HS differential signaling diagrams.
Important: The host controller must generate MIPI DSI signals that meet these timing requirements. The document mentions a recommended operating condition of VCI = 2.5V to 3.3V and VDD3 = 1.65V to 3.3V.
3.3 Electro-Optical Characteristics
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Luminance | Lv | - | 250 | 280 | - | cd/m² |
| Uniformity | - | - | 80% | - | - | - |
Note: Detailed electro-optical characteristics (including contrast ratio, response time, viewing angle ranges, and chromaticity coordinates) are specified in Section 8 of the original document. The information above is extracted from the outline dimension section of the spec.
4. Application Guidelines & Critical Notes
Intended Use
- Embedded display applications requiring an 8.0-inch TFT screen with a standard MIPI DSI interface.
- Portable devices, tablets, and industrial control panels.
- Any application requiring a high-resolution (800×1280) display with 16.7M color depth and FULL VIEW angle capability.
Critical Design Considerations
- FULL VIEW Technology: The module specifies FULL VIEW as the viewing angle, indicating it uses IPS or similar technology for consistent image quality from almost any angle, with a typical contrast ratio dependent on the viewing angle.
- MIPI DSI Interface (4-Lane): The module requires a 4-lane MIPI DSI connection from the host processor. Ensure the host's MIPI DSI transmitter is configured for 4 lanes and meets the module's electrical and timing specifications (especially the 0.15 UI setup/hold times).
- Power Supply (Dual Voltage): The module requires two distinct power inputs: VDDIO (1.8V) for I/O and VDD (3.3V) for logic. Both supplies must be stable and within their specified ranges (VCI = 2.5V to 3.3V for VDD).
- Backlight Driving: The backlight uses 21 White LEDs in series with a typical forward current of If = 140mA. The forward voltage will be the sum of all 21 LEDs in series. A proper constant current LED driver is required.
- Reset Signal: The reset signal (RESET, Pin 27) operates at 1.8V logic levels. Ensure the host controller's GPIO or reset output is compatible with this voltage level.
- Temperature Limits: Operating Temperature: -10°C to +50°C. Storage Temperature: -20°C to +60°C.
- Mechanical Integration:
- The active area is 800*3(RGB)*1280.
- The module outline drawing provides detailed mechanical dimensions and tolerances.
Handling & Compliance
- ROHS Compliant (assumed based on industry standard).
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass and FPC – handle with care.
- Avoid bending the FPC sharply, especially near the connector interface.
- Do not attempt to disassemble or process the LCD Module.
- NC terminals should be open. Do not connect anything.
- If the logic circuit power is off, do not apply the input signals.
5. Conclusion & Design-In Support
The LS080I04-MP-V1 specification details a versatile 8.0-inch TFT display module with a standard 800×1280 resolution, 4-lane MIPI DSI interface, FULL VIEW angle technology, and 16.7M color support — a suitable choice for a wide range of embedded display applications requiring a mid-size screen with high-quality image reproduction.
Key Strengths
- Standard 8.0-inch Size: Fits in many portable and embedded applications.
- High Resolution (800×1280): Provides excellent image clarity and detail.
- FULL VIEW Technology: Delivers excellent wide viewing angles.
- Standard 4-Lane MIPI Interface: Simple to integrate with modern processors.
- 16.7M Color Support: Offers vibrant and accurate color reproduction.
- Good Luminance (280 cd/m² Typ): Suitable for indoor use.
Main Design Focus
- The critical design task is configuring the host's MIPI DSI transmitter to operate in 4-lane mode and ensuring the MIPI timing parameters (data to clock setup/hold times) are met.
- Supporting requirements: Provide dual power supplies (VDDIO 1.8V and VDD 3.3V). Design a constant current backlight driver for 21 series LEDs at 140mA. Ensure proper 1.8V logic level for the reset signal.
This module is an excellent choice for applications requiring an 8.0-inch display with a standard MIPI interface and FULL VIEW angle technology.
