LSC084I02-MP-V1 | 8.4 inch TFT-LCD | 800x1280 (RGB) | MIPI Interface | Full View
1. Executive Summary & Product Positioning
The LSC084I02-MP-V1 is a high-quality, 8.4-inch color TFT-LCD (Thin Film Transistor Liquid Crystal Display) module developed by 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd). This module integrates a TFT-LCD panel, a driver circuit with embedded TCON, and an edge-lit backlight unit. With a diagonal display size of 8.4 inches and a resolution of 800(RGB)×1280 pixels, it can display up to 16.7 million colors through an 8-bit digital data interface.
Product Positioning: This module is designed for industrial and commercial applications that require a reliable, high-performance display with excellent optical characteristics. The module features a Full View display mode (IPS technology), providing wide viewing angles (85/85/85/85) and a high contrast ratio (1200:1). It utilizes a standard 4-Lane MIPI DSI interface for easy integration with a wide range of host processors. The module is particularly suited for applications such as industrial HMI panels, medical devices, and other embedded display systems where clarity and consistent performance across a wide viewing angle are critical.
2. Detailed Product Overview & Architecture
The module's architecture is designed for straightforward integration and reliable operation. The primary components include:
- TFT-LCD Panel: 8.4-inch diagonal, a-Si TFT active matrix, TFT/Transmissive/Normal Black display mode. The active area (AA) is 181.29 mm (H) × 112.68 mm (V). The panel uses an IPS-type technology for full-viewing-angle performance.
- Driver IC & TCON: The module uses a driver IC with an integrated TCON (Timing Controller) to support the MIPI DSI interface without the need for an external controller in many cases. The interface accepts video data and commands over standard MIPI DSI lanes.
- Backlight Unit (B/L): A high-efficiency edge-lighting type backlight unit consisting of 30 white LEDs connected in a serial configuration (6S*5P, 6 series and 5 parallel strings). The total typical forward current is 110mA. The module typical luminance is 350 cd/m².
- Mechanical Construction: COG (Chip-on-Glass) + FPC (Flexible Printed Circuit) + B/L. The overall module outline is approximately 188.54 mm (H) × 122.38 mm (W) × 2.49 mm (D) (thickness based on dimensional drawing). The polarizer surface features a HC (Hard Coated) treatment for durability.
- Interface: The module communicates via a 44-pin FPC connector. The main interface is a 4-Lane MIPI DSI (Differential Signal Interface). The pinout includes power supplies (VSP/VSN = 5.8V/-5.8V, IOVCC = 1.8V), MIPI data lanes (D0~D3 +/-), clock lane (CLK +/-), backlight LED control (LED_K1~K4, LED_A), and touch screen signals (TP I2C: SCL, SDA; TP_RST).
3. Exhaustive Technical Specifications
3.1 General & Mechanical Specifications
| Item | Specification |
| Display Size (Diagonal) | 8.4 inches |
| Resolution (Dots) | 800(RGB) × 1280 |
| Display Technology | a-Si TFT, IPS / Transmissive / Normal Black (Full View) |
| Module Construction | COG+FPC+B/L |
| Color Depth | 16.7M colors |
| Display Mode | TFT/Transmissive/Normal Black |
| Viewing Angle (CR>10) | 85°/85°/85°/85° (L/R/U/D, Typ) |
| Luminance (Brightness, Typ) | 350 cd/m² (Typ), 300 cd/m² (Min) |
| Luminance Uniformity | 80% (Min) |
| Contrast Ratio (Typical) | 1200:1 (Typ), 900:1 (Min) |
| Color Gamut (NTSC) | Typ 74.1% |
| Active Area (H×V) | 181.29 mm × 112.68 mm |
| Outline Dimensions (H×W×D) | ~188.54 mm × 122.38 mm × 2.49 mm (Max) |
| Interface | 4-Lane MIPI DSI |
| Backlight | 30 chip White LEDs, Series (6S*5P), 110mA |
| Polarizer Surface Treatment | HC (Hard Coated) |
| RoHS Compliance | Yes (2011/65/EU) |
3.2 Interface & Electrical Specifications
3.2.1 Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Logic Power Supply Voltage (VSP) | VSP | 4.9 | 6.0 | V |
| Logic Power Supply Voltage (VSN) | VSN | -6.0 | -4.9 | V |
| I/O Power Supply Voltage | IOVCC | 1.7 | 2.0 | V |
| Operating Temperature | TOP | -10 | +50 | °C |
| Storage Temperature | TST | -20 | +60 | °C |
3.2.2 Backlight Characteristics
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Forward Voltage | VF | 16.8 | 18.0 | 19.2 | V |
| Forward Current | IF | - | 110 | - | mA |
3.2.3 Key Pin Function (From 44-Pin Connector)
The module's 44-pin connector integrates MIPI display, backlight, and touch screen signals. Key functional groups are listed below:
| Pin No. | Symbol | Function |
|---|---|---|
| 14-16, 33-36 | GND | Ground |
| 17 | LCD_ID | LCD ID Pin |
| 22 | LCD_RST | LCD Reset Pin |
| 26-27 | MIPI_D0_M/N, MIPI_D1_M/N | MIPI DSI Data Lane 0 and 1 (Differential) |
| 30-31 | MIPI_CLK_M/N | MIPI DSI Clock Lane (Differential) |
| 34-35 | MIPI_D2_M/N, MIPI_D3_M/N | MIPI DSI Data Lane 2 and 3 (Differential) |
| 37-40, 44 | LED_K_1~4, LED_A | Backlight LED Cathodes (K) and Anode (A) |
| 41-43 | TP_I2C_SCL, TP_I2C_SDA, TP_RST | Touch Panel I2C Interface and Reset |
3.3 Optical Specifications
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| White Luminance (LCM) | Yw | Θ=0°, IF=110mA | 300 | 350 | - | cd/m² |
| White Luminance Uniformity (9 Points) | ΔY9 | Θ=0° | 80 | 90 | - | % |
| Contrast Ratio | CR | Θ=0° | 900:1 | 1200:1 | - | - |
| Color Gamut | - | - | 69.1 | 74.1 | 79.1 | % |
| White Chromaticity | Wx | Θ=0° | 0.278 | 0.308 | 0.338 | - |
| White Chromaticity | Wy | Θ=0° | 0.299 | 0.329 | 0.359 | - |
3.4 MIPI DSI AC Timing Characteristics (High-Speed Mode)
The module supports MIPI DSI operation up to 1Gbps per lane (with speedup enabled). Key timing parameters for the High-Speed (HS) receiver are as follows:
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Bandwidth per lane | - | - | - | 1000 | Mbps |
| Differential input impedance | ZID | 80 | 100 | 125 | ohm |
| Data to Clock Skew | Tskew | -0.15 | - | 0.15 | UI_INST |
| Data to Clock Setup Time | TSETUP | 0.25 | - | - | UI_INST |
| Data to Clock Hold Time | THOLD | 0.25 | - | - | UI_INST |
4. Application Guidelines & Critical Notes
When integrating the LSC084I02-MP-V1 module, engineers must adhere to the specific guidelines outlined in the specification to ensure optimal performance and reliability.
- Power Supply (Bipolar): This module requires a dual-rail power supply: a positive rail (VSP = +5.8V) and a negative rail (VSN = -5.8V), plus a digital I/O voltage (IOVCC = 1.8V). The specification provides a defined power sequence and reset timing diagram that must be followed to prevent damage or improper initialization. The RESX signal must be held low for at least 1ms after the power supply rails have stabilized.
- Backlight Driver: The backlight is configured as a series-parallel array (6S*5P). The driver must be a constant current source capable of delivering the total forward current of 110mA at a voltage up to 19.2V. The cathodes (LED_K_1 to 4) and anodes (LED_A) are available as separate pins, providing flexibility for external driver design.
- MIPI DSI Interface: The module uses a standard 4-lane MIPI DSI interface operating at speeds up to 1Gbps per lane. Ensure that the host processor's MIPI DSI transmitter is compatible and can be configured for the correct number of lanes and data rate. Proper PCB layout for differential pairs (100-ohm impedance) is critical for signal integrity at these high speeds.
- Touch Panel (Optional): The module's FPC includes pins for a projected capacitive touch panel (TP_I2C_SCL, TP_I2C_SDA, TP_RST). If an external touch panel is attached, it should be compatible with a standard I2C interface. The reset signal (TP_RST) can be used to initialize the touch controller.
- Mechanical Mounting: The module has specific mounting holes and a detailed outline dimension drawing. It must be handled with care to avoid mechanical stress to the glass edges. The specification notes a general tolerance of ±0.2mm for important dimensions. The active area of the CG (Cover Glass) is larger than the LCD AA, allowing for bezel design.
- Optical Performance: The module is specified with high brightness (350 cd/m²) and excellent uniformity. The "Full View" technology ensures consistent colors and contrast from any viewing angle. For critical applications, the white chromaticity (Wx, Wy) is specified within a tight tolerance.
- Storage and Handling: The module should be stored in a clean, dry environment within the specified storage temperature range of -20°C to +60°C. ESD protection should be used during handling to prevent damage to the sensitive components.
5. Conclusion & Design-In Support
The LSC084I02-MP-V1 from Lesson Smart Display Technology is a high-performance, 8.4-inch TFT-LCD module that balances excellent optical performance with a standard MIPI interface. Its wide viewing angles, high contrast ratio, and solid brightness make it an ideal choice for a wide array of industrial, medical, and commercial display applications.
For design-in support, it is strongly recommended to:
- Obtain and review the full Product Specification (Doc. Revision 00) for the complete set of electrical characteristics, timing diagrams, optical measurement reports, and the detailed mechanical outline drawing.
- Design the power supply section following the recommended power sequence and reset timing. Pay close attention to the safe operating area for the backlight driver.
- Use the provided mux diagram and pin description for accurate schematic capture of the 44-pin FPC connector.
- Contact the manufacturer for evaluation kits, sample requests, and technical support during the design-in phase to ensure proper configuration and integration.
This module is engineered to deliver consistent, high-quality performance for demanding display applications.
