LSC050I14-MP-V1: 4.96-Inch TFT LCD Module, 720×1280 Resolution, MIPI Interface, High Brightness Display
Product Subtitle / Keywords
4.96 Inch Display, 720(RGB)×1280 Resolution, a-Si TFT-LCD Module, Transmissive, Normally Black, 16.7M Display Colors, COG+FPC+B/L+LENS Module Type, MIPI-DSI Interface, Driver IC ST7123-1-G7, Operating Temperature -10°C to +60°C, Storage Temperature -30°C to +80°C, Supply Voltage IOVCC=1.8V (Typ), Backlight IF=40mA, Vf=16.8-17.4V, Brightness 300 cd/m² (Typ), Uniformity 80% (MIN), LENS Panda Glass with AF Coating, Hardness ≥8H, RoHS Compliant, Spec Rev 1.0, Lesson Smart Display Technology Co., Ltd.
1. Executive Summary & Product Positioning
The LSC050I14-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 4.96 inch and the resolution is 720(RGB)*1280, the panel can display up to 16.7M colors. The module type is COG+FPC+B/L+LENS.
This product specification (Revision 1.0) serves as the definitive technical document, defining the module's general description, physical features (including outline dimension with detailed notes on cover glass, backlight, operating/storage temperature, and driver IC), absolute maximum ratings (for supply voltage and temperature), electrical characteristics (including power supply voltages and input voltage levels), module function description (including pin description and timing characteristics for MIPI DSI), and backlight characteristics.
The document provides the core parameters necessary for system integration into standard 4.96-inch HD 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: HD portrait format: 720(RGB) × 1280 pixel array.
- Display Mode: Normally Black, Active matrix TFT, Transmissive type.
- Module Construction: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight) + LENS (Cover Glass with AF coating). Unlike many modules in this series, it does not include a touch panel (CTP).
- Interface Type: The module uses a high-speed MIPI-DSI (Display Serial Interface) with 4 data lanes for pixel data and command/register configuration. The clock lane is also differential.
- Power Architecture: The module's driver IC ST7123-1-G7 is powered by IOVCC (1.65V to 1.95V, Typ 1.8V) for the I/O interface and internal logic circuits. The backlight LEDs are powered directly via dedicated LED+ and LED- pins.
- Backlight: A white LED backlight configured with 12 chip white LEDs (likely 3 serial strings of 4 LEDs or a similar configuration). The driving condition requires a constant current of IF=40mA with a forward voltage range of Vf=16.8V to 17.4V. The typical brightness is 300 cd/m².
- Cover Lens: The module integrates a protective cover glass (LENS) made of Panda Glass with an Anti-Fingerprint (AF) coating. The hardness is ≥8H (750g), and the strength is CS ≥ 450Mpa, DOL ≥ 8µm. The transmittance is ≥84%.
- Driver IC: The module is driven by the ST7123-1-G7 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 | LSC050I14-MP-V1 | - |
| Display Size (Diagonal) | 4.96 | inch |
| Resolution | 720(RGB) × 1280 | pixels |
| Display Type / Mode | Transmissive a-Si TFT-LCD, Active matrix TFT, Normally Black | - |
| Module Type | COG+FPC+B/L+LENS | - |
| Display Colors | 16.7M | colors |
| Main LCD Driver IC | ST7123-1-G7 | - |
| Interface | MIPI-DSI (4 Data Lanes) | - |
| Viewing Direction | ALL O'CLOCK (Implied by Notes) | - |
| Brightness (Typical) | 300 | cd/m² |
| Uniformity (MIN) | 80 | % |
| Cover Glass (LENS) | Panda Glass with AF coating, Hardness ≥8H (750g) | - |
| Cover Glass Strength | CS ≥ 450Mpa, DOL ≥ 8µm | - |
| Cover Glass Transmittance | ≥84 | % |
| 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 |
|---|---|---|---|---|
| Supply voltage (for logic) | IOVCC | -0.5 | 4.0 | V |
| Operating temperature | TOPR | -10 | 60 | °C |
| Storage temperature | TSTR | -30 | 80 | °C |
3.2.2 Recommended Operating Conditions (From Section 6)
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply voltage (Logic I/O) | IOVCC | 1.65 | 1.8 | 1.95 | V |
| Input Voltage 'L' level | VIL | GND | --- | 0.3*IOVCC | V |
| Input Voltage 'H' level | VIH | 0.7*IOVCC | --- | IOVCC | V |
| Backlight Forward Current | IF | - | 40 | - | mA |
| Backlight Forward Voltage | VF | 16.8 | 17.4 | - | V |
3.2.3 Pin Description (25-Pin FPC, From Section 7-2)
The module uses a 25-pin FPC connector. Key pins include:
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | DNO | I/O | MIPI-DSI data lane 0 negative-end input/output pin |
| 2 | DP0 | I/O | MIPI-DSI data lane 0 positive-end input/output pin |
| 3 | GND | P | Ground |
| 4 | DN1 | I | MIPI-DSI data lane 1 negative-end input pin |
| 5 | DP1 | I | MIPI-DSI data lane 1 positive-end input pin |
| 6 | GND | P | Ground |
| 7 | CLKN | I | MIPI-DSI clock lane negative-end input pin |
| 8 | CLKP | I | MIPI-DSI clock lane positive-end input pin |
| 9 | GND | P | Ground |
| 10 | DN2 | I | MIPI-DSI data lane 2 negative-end input pin |
| 11 | DP2 | I | MIPI-DSI data lane 2 positive-end input pin |
| 12 | GND | P | Ground |
| 13 | DN3 | I | MIPI-DSI data lane 3 negative-end input pin |
| 14 | DP3 | I | MIPI-DSI data lane 3 positive-end input pin |
| 15 | GND | P | Ground |
| 16 | NC | - | No connection |
| 17 | NC | - | No connection |
| 18 | GND | P | Ground |
| 19 | IOVCC | P | External power supply for internal logic circuit (1.8V) |
| 20 | ID0 | I | ID pin |
| 21 | ID1 | I | ID pin |
| 22 | RESET | I | Global reset signal |
| 23 | LED+ | P | Power for LED backlight anode |
| 24 | LED+ | P | Power for LED backlight anode |
| 25 | LED- | P | Power for LED backlight cathode |
3.3 Timing Characteristics (From Section 7-3)
3.3.1 MIPI DSI Clock Timing (Partial)
The specification provides key timing parameters for the MIPI DSI interface. Key parameters include:
| Parameter | Symbol | MIN | MAX | Unit |
|---|---|---|---|---|
| Time that the transmitter shall continue sending HS clock after the last associated Data Lane has transitioned to LP mode | TCLK-POST | 60+52UI | - | ns |
| Detection time that the clock has stopped toggling | TCLK-MISS | - | 60 | ns |
| Time to drive LP-00 to prepare for HS clock transmission | TCLK-PREPARE | 38 | 95 | ns |
| Minimum lead HS-0 drive period before starting Clock | TCLK-PREPARE + TCLK-ZERO | 300 | - | ns |
| Time to enable Clock Lane receiver line termination measured from when Dn cross VIL_MAX | TCLK-TERM-EN | - | 38 | ns |
| Minimum time that the HS clock must be set prior to any associated data lane beginning the transmission from LP to HS mode | TCLK-PRE | 8 | - | UI |
| Time to drive HS differential state after last payload clock bit of a HS transmission burst | TCLK-TRAIL | 60 | - | ns |
4. Application Guidelines & Critical Notes
Intended Use
- Standard HD resolution 4.96-inch display applications (e.g., smart home devices, portable instruments, handheld terminals).
- Systems requiring a high-resolution 4-lane MIPI DSI interface.
- Applications requiring a protective cover glass (LENS) integrated into the display module.
Critical Design Considerations
- Single Power Supply (IOVCC=1.8V): The module requires a single 1.8V supply for the logic and interface circuits. This is the only power needed for the LCD controller. The backlight is driven separately through the LED+ pins.
- High-Speed 4-Lane MIPI DSI Interface: The module uses a 4-lane MIPI DSI interface (DNO/DP0, DN1/DP1, DN2/DP2, DN3/DP3) plus a clock lane (CLKN/CLKP). 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.
- Direct Backlight Drive (12V-18V): The backlight is powered directly through the LED+ and LED- pins. This requires an external constant-current LED driver capable of delivering 40mA at a forward voltage of 16.8V to 17.4V (12 LEDs). The host board must provide this boost converter.
- Integrated Cover Glass (LENS): The module includes a Panda Glass cover with AF coating. This simplifies the final assembly but requires careful mechanical design around the glass edge and cutouts.
- Temperature Range (-10°C to +60°C Operating): A standard consumer/industrial temperature range.
- Brightness and Uniformity: The typical brightness is 300 cd/m², making it suitable for standard indoor use. The minimum uniformity is 80%.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass and a cover lens – handle with care. Avoid mechanical stress on the active area, cover glass, or FPC.
- The cover glass has AF coating – avoid touching the surface with bare hands.
- Do not attempt to disassemble or modify the LCD module.
- The module is RoHS compliant.
5. Conclusion & Design-In Support
The LSC050I14-MP-V1 specification details a compact 4.96-inch HD (720×1280) TFT LCD module with a transmissive Normally Black display, a high-speed 4-lane MIPI DSI interface, and an integrated cover glass (LENS) — a practical and high-brightness solution for embedded applications requiring a protective display.
Key Strengths
- HD Resolution (720x1280): Provides excellent pixel density for a 4.96-inch display.
- High-Performance MIPI DSI Interface: The 4-lane interface ensures sufficient bandwidth for smooth video playback.
- Integrated Cover Glass (LENS): Reduces BOM and simplifies final assembly with a pre-installed Panda Glass cover with AF coating.
- High Brightness (300 cd/m²): Ensures good readability in typical indoor lighting conditions.
- Detailed Technical Documentation: Comprehensive specs with MIPI timing parameters facilitate reliable integration.
Main Design Focus
- The critical design tasks are providing a stable single power supply (IOVCC=1.8V) with proper decoupling, implementing a constant-current LED backlight driver (40mA at ~17V) through the LED+/LED- pins, interfacing the host processor's 4-lane MIPI DSI controller with correct differential signal routing (100-ohm impedance, length matching), and ensuring proper mechanical fit for the integrated cover glass.
- Supporting requirements: Connect all ground pins (GND). Ensure the RESET pin is driven low for a proper initialization sequence. The ID0 and ID1 pins can be used for module identification.
This module is a reliable and practical choice for engineers designing embedded systems that require an HD portrait display with a protective cover glass and a high-speed MIPI interface.
