LSC050I18-MP-V1: 4.97-Inch TFT LCD Module, 1080×1920 Resolution, MIPI Interface, IPS Display
Product Subtitle / Keywords
4.97 Inch Display, 1080(RGB)×1920 Resolution, a-Si TFT-LCD Module, Transmissive, IPS Display, 16.7M Display Colors, COG+FPC+B/L+CTP Module Type, MIPI-DSI Interface, Driver IC XM91080, Operating Temperature -20°C to +60°C, Storage Temperature -30°C to +70°C, Supply Voltage VDD-1V8=1.8V (Typ), VSP=5.0V (Typ), VSN=-5.0V (Typ), Backlight Configuration 6 Series 2 Parallel (12 LEDs), IF=40mA, VF=16.8-17.4V, RoHS Compliant, Spec Rev 1.0, Lesson Smart Display Technology Co., Ltd.
1. Executive Summary & Product Positioning
The LSC050I18-MP-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 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. The panel size is 4.97 inch and the resolution is 1080(RGB)*1920, the panel can display up to 16.7M colors. The module type is COG+FPC+B/L+CTP.
This product specification (Revision 1.0) serves as the definitive technical document, defining the module's general description, physical features, outline dimension (including detailed mechanical drawings and notes on CTP, backlight, operating/storage temperature, and driver IC), absolute maximum ratings, electrical characteristics (including power supply voltages), module function description (including pin description for MIPI DSI and backlight), and electro-optical characteristics.
The document provides the core parameters necessary for system integration into standard 4.97-inch high-resolution portrait display applications. The unequivocal recommendation for engineers is to strictly adhere to the mechanical and electrical specifications 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 Resolution: High-density portrait format: 1080(RGB) × 1920 pixel array.
- Display Mode: IPS (In-Plane Switching), Active matrix TFT, Transmissive type.
- Module Construction: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight) + CTP (Capacitive Touch Panel).
- Interface Type: The module uses a high-speed MIPI DSI (Display Serial Interface) for pixel data and command/register configuration.
- Power Architecture: The module's driver IC XM91080 supports multiple power supplies: VDD-1V8 (1.71V to 1.95V, Typ 1.8V) for the digital core, VSP (4.5V to 6.0V, Typ 5.0V) for positive analog, and VSN (-4.5V to -6.0V, Typ -5.0V) for negative analog supply.
- Backlight: The backlight is configured as 6 series and 2 parallel (6串2并) strings (12 LEDs total). The driving condition requires a constant current of IF=40mA with a forward voltage range of VF=16.8V to 17.4V.
- Touch Panel: The module includes a Capacitive Touch Panel (CTP) interface. The specification includes specific mechanical notes regarding the CTP: the CTP edge cannot contact metal conductors, the gasket foam window should be 0.6mm larger than the VA on each side, and the shell visible area should be 0.3mm smaller than the VA on each side.
- Driver IC: The module is driven by the XM91080 IC.
- Supplier: 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd).
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Item | Specification | Unit |
|---|---|---|
| Model | LSC050I18-MP-V1 | - |
| Display Size (Diagonal) | 4.97 | inch |
| Resolution | 1080(RGB) × 1920 | pixels |
| Display Type / Mode | Transmissive a-Si TFT-LCD, Active matrix TFT, IPS | - |
| Module Type | COG+FPC+B/L+CTP | - |
| Display Colors | 16.7M | colors |
| Main LCD Driver IC | XM91080 | - |
| Interface | MIPI DSI | - |
| Backlight Configuration | 6 Series, 2 Parallel (12 LEDs) | - |
| Backlight IF | 40 | mA |
| Backlight VF | 16.8 - 17.4 | V |
| LCM OD (Outer Dimension) | 64.20 ± 0.20 | mm |
| LCD ACF (ACF Tape Width) | 61.48 | mm |
| BL (Backlight Outer) | 64.20 ± 0.20 | mm |
| FPC + Steel Reinforcement Total Thickness | 0.3 | mm |
| Supplier | 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd) | - |
3.2 Interface & Electrical Specifications
3.2.1 Absolute Maximum Ratings
| Item | Symbol | Min | Max | Unit | Remark |
|---|---|---|---|---|---|
| Supply voltage (Analog Positive) | VSP | -0.3 | 6.5 | V | - |
| Supply voltage (Analog Negative) | VSN | -6.5 | 0.3 | V | - |
| Supply voltage (Digital 1.8V) | VDD-1V8 | -0.3 | 4.6 | V | - |
| Operating temperature | TOPR | -20 | 60 | °C | Note 2 |
| Storage temperature | TSTR | -30 | 70 | °C | Note 3 |
3.2.2 Recommended Operating Conditions (From Section 6)
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply voltage (Digital 1.8V) | VDD-1V8 | 1.71 | 1.8 | 1.95 | V |
| Supply voltage (Analog Positive) | VSP | 4.5 | 5.0 | 6.0 | V |
| Supply voltage (Analog Negative) | VSN | -6.0 | -5.0 | -4.5 | V |
| Input Voltage 'L' level | VIL | 0 | --- | 0.3*VDD-1V8 | V |
| Input Voltage 'H' level | VIH | 0.7*VDD-1V8 | --- | VDD-1V8 | V |
3.2.3 Pin Description (31-Pin FPC, From Section 7-2)
The module uses a 31-pin FPC connector. Key pins include:
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | GND | P | Ground |
| 2 | NC | - | No Connection |
| 3 | LCD_PWM | O | LCD backlight PWM control |
| 4 | GND | P | Ground |
| 5 | TE | O | Tearing effect output pin to synchronize MCU to frame writing, activated by S/W command |
| 6 | D2P | I | MIPI-DSI Data differential signal input pins (Lane 2 Positive) |
| 7 | RESET | I | Global Reset Signal. Active Low |
| 8 | D2N | I | MIPI-DSI Data differential signal input pins (Lane 2 Negative) |
| 9 | NC | - | No Connection |
| 10 | GND | P | Ground |
| 11 | NC | - | No Connection |
| 12 | D1P | I | MIPI-DSI Data differential signal input pins (Lane 1 Positive) |
| 13 | GND | P | Ground |
| 14 | D1N | I | MIPI-DSI Data differential signal input pins (Lane 1 Negative) |
| 15 | VSN | P | -4.5V ~ -6.0V. Connect a capacitor for stabilization |
| 16 | GND | P | Ground |
| 17 | VSN | P | -4.5V ~ -6.0V. Connect a capacitor for stabilization |
| 18 | VSP | P | 4.5V ~ 6.0V. Connect a capacitor for stabilization |
| 19 | VSP | P | 4.5V ~ 6.0V. Connect a capacitor for stabilization |
| 20 | VDD-1V8 | P | 1.71V ~ 1.95V. Connect a capacitor for stabilization |
| 21 | NC | - | No Connection |
| 22 | NC | - | No Connection |
| 23 | NC | - | No Connection |
| 24 | LANE0-P | I | MIPI-DSI Data differential signal input pins (Lane 0 Positive) |
| 25 | NC | - | No Connection |
| 26 | LANE0-N | I | MIPI-DSI Data differential signal input pins (Lane 0 Negative) |
| 27 | LED-ANODE | P | Backlight LED Anode |
| 28 | GND | P | Ground |
| 29 | NC | - | No Connection |
| 30 | LANE3-P | I | MIPI-DSI Data differential signal input pins (Lane 3 Positive) |
| 31 | LED-CATHODE | P | Backlight LED Cathode |
| 32 | LANE3-N | I | MIPI-DSI Data differential signal input pins (Lane 3 Negative) |
| 33 | GND | P | Ground |
| 34 | CLK-P | I | MIPI-DSI Clock lane positive-end input pin |
| 35 | CLK-N | I | MIPI-DSI Clock lane negative-end input pin |
4. Application Guidelines & Critical Notes
Intended Use
- High-resolution 4.97-inch smartphone and display applications requiring Full HD+ resolution (1080x1920).
- Systems requiring a high-speed 4-lane MIPI DSI interface for high bandwidth video data.
- Applications requiring a built-in capacitive touch panel (CTP).
Critical Design Considerations
- Triple Power Supplies (VDD-1V8, VSP, VSN): The module requires three separate power rails: a digital core supply (VDD-1V8=1.8V) and bipolar analog supplies (VSP=+5.0V, VSN=-5.0V). Proper power sequencing must be followed to avoid damage. The power-down sequence is explicitly defined in the specification and must be implemented.
- High-Speed 4-Lane MIPI DSI Interface: The module uses a 4-lane MIPI DSI interface (Lane0, Lane1, Lane2, Lane3) plus a clock lane. The host processor must support this interface. PCB layout must ensure proper differential impedance (typically 100 ohms) and length matching for the high-speed differential pairs.
- High Resolution (1080x1920): The Full HD+ resolution demands significant processing power and memory bandwidth from the host system.
- External or Integrated Backlight Driver: The PWM output (LCD_PWM) from the module is available for controlling an external backlight LED driver. The backlight pins (LED-ANODE, LED-CATHODE) provide direct connection to the LED string. The forward voltage is 16.8V to 17.4V at 40mA, requiring a boosting constant-current LED driver.
- Power OFF Sequence: The specification provides a detailed power-off sequence that must be followed for reliable operation.
- IPS Display with Wide Viewing Angle: The display uses IPS technology, providing "ALL O'CLOCK" viewing direction.
- Temperature Range (-20°C to +60°C Operating): A standard consumer/industrial temperature range with extended storage capability.
- CTP Design Notes: The specification includes specific mechanical notes regarding the CTP: the CTP edge cannot contact metal conductors, the gasket foam window should be 0.6mm larger than the VA on each side, and the shell visible area should be 0.3mm smaller than the VA on each side.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly. The polarizer is easily scratched; use a soft dry cloth or isopropyl/ethyl alcohol for cleaning.
- The module contains fragile glass – handle with care. Avoid mechanical stress on the active area or FPC.
- Do not attempt to disassemble or modify the LCD module.
- The module is RoHS compliant.
- The tolerance for segments to the edge of glass is ±0.2mm.
5. Conclusion & Design-In Support
The LSC050I18-MP-V1 specification details a high-resolution 4.97-inch (1080×1920) IPS TFT LCD module with a transmissive display, a high-speed 4-lane MIPI DSI interface, and an integrated capacitive touch panel — a powerful and feature-rich choice for demanding embedded display applications.
Key Strengths
- Full HD+ Resolution (1080x1920): Provides exceptional pixel density for sharp text and detailed graphics in a portrait form factor.
- High-Performance MIPI DSI Interface: The 4-lane interface ensures sufficient bandwidth for full HD video.
- Integrated Capacitive Touch Panel (CTP): Provides a complete touch display solution.
- Full-Viewing-Angle IPS Display: The "ALL O'CLOCK" viewing angle ensures consistent image quality from any perspective.
- Detailed Technical Documentation: Comprehensive specs with explicit pin definitions and mechanical notes facilitate rapid and reliable integration.
Main Design Focus
- The critical design tasks are implementing the triple-rail power supply (VDD-1V8=1.8V, VSP=+5.0V, VSN=-5.0V) with the correct power sequencing, interfacing the host processor's 4-lane MIPI DSI controller with correct differential signal routing (100-ohm impedance, length matching), providing a constant-current LED backlight driver (40mA at ~17V) controlled by the module's PWM output, and implementing the specific reset and power-off timing requirements.
- Supporting requirements: Connect all ground pins (GND). Ensure the RESET pin is driven low for a proper initialization sequence (at least 10µs). Follow the MIPI DSI initialization sequence.
This module is an excellent choice for engineers designing high-end embedded systems that require a Full HD portrait display with touch and a high-speed MIPI interface.
