LSC084I01-MP-V1 | 8.4 inch TFT-LCD | 1200x1920 (RGB) | TDDI | HADS Wide Viewing | Industrial Display
1. Executive Summary & Product Positioning
The LSC084I01-MP-V1 is a high-performance, 8.4-inch in-cell 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 an LCD panel, Source ICs, control circuit, and an edge-lit backlight. The key innovation is the TDDI (Touch and Display Driver Integration) technology, which embeds the touch sensor and display driver into a single IC, simplifying the system design and improving touch performance. With a display size of 8.37 inches (diagonal) and a WUXGA resolution of 1200(RGB)×1920 pixels, it delivers up to 16.7 million colors through an 8-bit digital data interface.
Product Positioning: This module is designed for high-end industrial applications, medical displays, and automotive-grade human-machine interfaces (HMI) that require high resolution, excellent optical performance, and extreme reliability. The module features an HADS (High Advanced Super Dimension Switch) display technology, providing an ultra-wide viewing angle (85/85/85/85) and high contrast ratio (1200:1). It operates over a wide temperature range (-20°C to +85°C) and has a high luminance of 400 cd/m². The TDDI interface streamlines the interconnection by supporting touch and display data over a single high-speed MIPI-like interface.
2. Detailed Product Overview & Architecture
The module's architecture is based on a multi-component assembly designed for ease-of-integration and high reliability. The primary components include:
- TFT-LCD Panel: 8.37-inch diagonal, a-Si TFT active matrix, HADS (High Advanced Super Dimension Switch) display mode. The active area (A.A) is 112.68 mm (H) × 180.288 mm (V). The panel uses "Normal black" mode for superior dark state performance.
- Driver IC & TDDI: The module uses a TDDI driver IC (D-IC: HX83102E*2) which integrates the Source Driver, TCON (Timing Controller), and Touch Controller into a single chipset. This reduces component count and simplifies the interconnection. The interface is a high-speed serial interface (similar to MIPI).
- Backlight Unit (B/L): A high-efficiency edge-lighting type backlight unit consisting of 30 white LEDs connected in a single serial string. The typical forward current (ILED) is 18.5mA per string, with a forward voltage (VLED) of up to 3.2V per LED.
- Mechanical Construction: COG (Chip-on-Glass) + FPC (Flexible Printed Circuit) + B/L. The module weight is max 120g (TLCM). The polarizer surface treatment is "HC + Clear" for better scratch resistance.
- Interface: The module communicates via a 184-pin connector. The pinout includes power supplies (VSP/VSN = ±5.8V, IOVCC = 1.8V, VDD1), MIPI-like data lines (e.g., SYNC TP DATA R[2:0]), and touch signals (TP I2C: SCL, SDA; TP RESX). The specification indicates the module supports both display and in-cell touch data over this interface, simplifying system wiring.
3. Exhaustive Technical Specifications
3.1 General & Mechanical Specifications
| Item | Specification |
| Display Size (Diagonal) | 8.37 inches |
| Resolution (Dots) | 1200(RGB) × 1920 |
| Display Technology | a-Si TFT, HADS (High Advanced Super Dimension Switch, Wide View) |
| Module Construction | COG+FPC+B/L (TDDI with in-cell touch) |
| Color Depth | 16.7M colors (8-bit) |
| Display Mode | Normal Black (HADS) |
| Inversion Method | Column inversion |
| Luminance (Brightness, Typ) | 400 cd/m² (Typ), 320 cd/m² (Min) at center |
| Contrast Ratio (Typical) | 1200:1 (Typ), 900:1 (Min) |
| Color Gamut (NTSC) | Typ 74.1% |
| Viewing Angle (CR>10) | 85°/85°/85°/85° (L/R/U/D, Typ) |
| Active Area (H×V) | 112.68 mm × 180.288 mm |
| Panel Size (H×V) | 116.880 mm × 187.240 mm |
| Pixel Pitch | RG: 29.7(H) × 93.9(V) µm, B: 34.5(H) × 93.9(V) µm |
| Gamma Value | 2.2 ± 0.25 |
| Polarizer Surface Treatment | HC + Clear (Hard Coated + Clear) |
| Weight (Max) | 120 g (TLCM) |
| Power Consumption (Logic+Backlight) | 400 mW + 1776 mW (Typ) |
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 | -20 | +85 | °C |
| Storage Temperature | TST | -40 | +100 | °C |
3.2.2 Electrical Characteristics (Typical Conditions)
| Parameter | Symbol | Typ | Unit |
|---|---|---|---|
| Logic Power Supply Voltage (+) | VSP | 5.8 | V |
| Logic Power Supply Voltage (-) | VSN | -5.8 | V |
| I/O Power Supply Voltage | IOVCC | 1.8 | V |
| LED Forward Current (per string) | ILED | 18.5 | mA |
3.2.3 Key Pin Function (From 184-Pin Connector)
The module utilizes a high-density 184-pin connector. The interface integrates display, touch, and power signals. Key functional groups are listed below:
| Pin No. | Symbol | Function |
|---|---|---|
| 46, 50-51, 54-55 | C21N, C22P/N, C41P/N | Display / Charge Pump Capacitor Connections |
| 47, 52, 56, 57, 58, 59, 60, 173, 174 | VSP, VSN, VSSA, VSSD, VDDD, VDD1 | Power Supplies: +5.8V, -5.8V, Ground, Digital 1.8V |
| 108-113 | FLASH SS, SCL, MOSI, MISO, HOLD, WP | SPI Interface for External Flash (for firmware/configuration) |
| 114-116 | TP RESX, TP I2C SCL, TP I2C SDA | In-Cell Touch Interface: Reset, I2C Clock, I2C Data |
| 170-172 | SYNC TP DATA R[2:0] | Synchronization and Touch Data Lines (High-Speed Serial) |
Note: The full 184-pin map is detailed in the specification. The interface supports a proprietary high-speed serial data protocol for both display and touch, reducing the number of required cables.
3.2.4 Backlight Unit (BLU) Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| LED Current (total string) | ILED | - | 18.5 | - | mA |
| LED Forward Voltage (per LED) | VLED | - | - | 3.2 | V |
| LED Quantity | - | - | 30 | - | ea |
3.3 Timing Characteristics
The module is designed to operate with a frame rate of fV=60Hz (typical). The precise horizontal and vertical timing parameters (Hsync width, back porch, front porch, etc.) are defined in the full Product Specification. The high-speed serial interface requires proper clock and data lane timing for reliable operation. The specification includes detailed AC characteristics for the interface in the "Electrical Characteristics" section, including the MIPI-like differential signal timings. The total setup and hold window is defined as 0.3*UIINST for the receiver.
3.4 Environmental & Reliability Specifications
| Operating Temperature Range | -20°C to +85°C |
| Storage Temperature Range | -40°C to +100°C |
| Reliability Tests | The module undergoes rigorous testing (High/Low Temp Storage & Operation, Thermal Shock, Humidity, etc.) as per standard industrial specifications. |
| RoHS Compliance | Yes |
4. Application Guidelines & Critical Notes
When integrating the LSC084I01-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). A proper power-on sequence must be followed (as per Section 6.1.1 of the full spec) to prevent latch-up or damage. The specification notes that the supply voltage is measured at the LCM interface connector.
- Backlight Driver: The backlight is a single string of 30 LEDs in series, requiring a constant current driver capable of delivering 18.5mA at a total forward voltage of up to 96V (30 LEDs × 3.2V). A boost LED driver IC with high voltage output is necessary. The cathode of the LED string is connected to ground.
- TDDI Interface: The module uses a proprietary TDDI interface. The host processor must support this specific high-speed serial protocol. The specification provides details on the timing and electrical characteristics of the interface (SYNC TP DATA R lines and I2C for touch). Proper firmware for the TDDI IC (HX83102E) is required for initialization.
- In-Cell Touch: The touch functionality is integrated (in-cell). The touch controller communicates via an I2C bus (TP I2C SCL, SDA) with a dedicated reset pin (TP RESX). Proper I2C pull-up resistors (e.g., 4.7kΩ to IOVCC) are necessary for reliable communication.
- Mechanical Mounting: The module has a specific outline dimension (Panel Size: 116.880mm × 187.240mm). The specification includes detailed mechanical drawings for the panel and backlight unit. The module has a thickness of approximately 5.65mm at the connector area (based on mechanical outline). The polarizer surface is HC+Clear; care must be taken to avoid scratching.
- Optical Performance: The module delivers high-brightness (400 cd/m²) with a wide color gamut (74.1% NTSC). The HADS technology ensures excellent viewing angles. For optical measurements, the center point is used, and the luminance is specified at the center of the display. The gamma value is 2.2 ± 0.25.
- Storage and Handling: The module should be stored in a clean, dry environment within the specified storage temperature range. ESD protection should be used during handling.
5. Conclusion & Design-In Support
The LSC084I01-MP-V1 from Lesson Smart Display Technology is a cutting-edge, TDDI-based 8.37-inch TFT-LCD module. Its high resolution (1200x1920), wide color gamut (74.1% NTSC), high brightness (400 cd/m²), extreme viewing angles (85/85/85/85), and wide temperature range (-20°C to +85°C) make it an excellent choice for advanced industrial and medical HMI applications that require a seamless touch and display experience.
For design-in support, it is strongly recommended to:
- Obtain and review the full Product Specification (Rev.0.0) for the complete electrical characteristics tables (including power consumption under specific patterns), timing diagrams, optical measurement reports, and the detailed 184-pin connector mapping.
- Request the TDDI driver IC (HX83102E) programming guide and initialization sequence from the manufacturer to correctly configure the module.
- Design a custom boost LED driver capable of providing 18.5mA at up to 96V for the single-string serial backlight configuration.
- Utilize the mechanical outline drawings for accurate footprint creation, paying attention to the overall panel size (116.88mm × 187.24mm) and the detailed backlight unit dimensions.
- Contact the manufacturer for evaluation kits, sample requests, and technical support during the design-in phase, especially regarding the proprietary TDDI interface and bipolar power supply design.
This module is engineered to deliver outstanding performance and reliability in the most demanding commercial and industrial environments.
