LS156I03-L-V1: 15.6-inch Color Active Matrix LCD Module, FHD 1920×1080 Resolution, 16.7M Colors (8-bit), 2ch-LVDS Interface, Normally Black, COG+PCB+B/L Module Type, Lesson Smart Display Technology
Product Subtitle / Keywords
15.6 Inch Display, 1920×1080 FHD Resolution, Color Active Matrix a-Si TFT-LCD, Transmissive Type, Normally Black Mode, 2ch-LVDS Interface, COG+PCB+B/L Module Type, 16.7M Colors (8-bit), 12V Typical Power Supply, 60Hz Refresh Rate, 250 cd/m² Typical Luminance, 3000:1 Typical Contrast Ratio, 30ms Typical Response Time, Public Information Display, RoHS Compliant, Lesson Smart Display Technology
1. Executive Summary And Product Positioning
The LS156I03-L-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 15.6-inch color active matrix liquid crystal display (LCD) module with a light emitting diode (LED) backlight assembly and built-in LED driver. It is a high-performance, open-cell module designed for professional display applications.
This product specification (Revision 1.0) serves as the definitive technical document, defining its structural composition (COG+PCB+B/L), general description, physical features, mechanical specifications, electrical characteristics, pin descriptions, and electro-optical characteristics. It supports a Full-HD resolution of 1920×1080 and can display up to 16.7 million colors (8-bit).
This module is dedicated for Public information display (PID) products and offers excellent performance including high contrast ratio (3000:1 Typ.), high color saturation, and high color depth. The unequivocal recommendation for engineers is to strictly adhere to the electrical specifications, interface timing, and mechanical tolerances described herein to ensure reliable performance and compatibility.
2. Detailed Product Overview And Architecture
- Core Technology: Color active matrix liquid crystal display using a-Si (amorphous silicon) thin film transistor (TFT) as the active element.
- Display Mode: Transmissive type, Normally Black mode (VA Mode).
- Display Format: Graphic 1920×1080 pixel array (FHD format).
- Display Characteristics: Capable of displaying up to 16.7 million colors (8-bit).
- Module Construction: COG (Chip-On-Glass) + PCB (Printed Circuit Board) + B/L (Backlight Unit).
- Interface Type: 2ch-LVDS (2-Channel Low-Voltage Differential Signaling) interface.
- Backlight: White LED backlight assembly with an integrated LED driver.
- Special Features: High contrast ratio, high color saturation, high color depth, RoHS compliant.
- Approval Status: Approved Product Specification only (Revision 1.0).
3. Exhaustive Technical Specifications
3.1 Physical And Mechanical Specifications
| Parameter | Specification | Unit | Note |
|---|---|---|---|
| Active Area (H×V) | 344.16 × 193.59 | mm | - |
| Module Size (H×V×D) | 351.86 × 206.33 × 6.30 | mm | With PCB |
| Module Size (H×V×D) | 351.86 × 206.33 × 3.2 | mm | Without PCB |
| Number of Pixels | 1920 × 1080 | pixel | FHD resolution |
| Pixel Pitch (Sub Pixel) | 59.75 × 179.25 | um | - |
| Pixel Arrangement | RGB Vertical Stripe | - | - |
| Display Colors | 16.7M | color | 8-bit |
3.2 Absolute Maximum Ratings
| Parameter | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|
| Power Supply Voltage | Vcc | -0.3 | 13.2 | V |
| Input Signal Voltage | Vin | -0.3 | 3.6 | V |
Note: Exceeding these values may cause damage to the unit.
3.3 Electrical Characteristics (LCD Drive)
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| Power Supply Voltage | Vcc | 10.8 | 12 | 13.2 | V | (1) |
| Rush Current | Irush | - | - | 3 | A | (2) |
| Power Supply Current (White Pattern) | Icc | - | 0.239 | 0.299 | A | (3) 60Hz |
| Power Supply Current (Horizontal Stripe) | Icc | - | 0.287 | 0.347 | A | (3) 60Hz |
| Power Supply Current (Black Pattern) | Icc | - | 0.234 | 0.294 | A | (3) 60Hz |
| Power Consumption (Mosaic Pattern) | Poc | - | 2.844 | 3.6 | Watt | 60Hz |
3.4 Backlight Electrical Characteristics (LED Driver)
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|
| Power Supply Voltage for LED Driver | Vbl | 5 | 12 | 21 | V | - |
| Input Current | Ibl | - | 0.37 | 0.40 | A | Vm=12V, Duty=100% |
| Power Consumption | Pbl | - | 4.44 | 4.819 | W | Vm=12V, Duty=100% |
| Inrush Current | IblRush | - | - | 3 | A | (1) |
| Backlight ON Voltage (BL_ENA) | Vbl-en | 1.6 | 3.3 | 5 | V | - |
| PWM Control Frequency | Fpwm | 0.1 | 1 | 20 | KHz | - |
| Duty Ratio | Dpwm | 1 | - | 100 | % | (2) |
| LED String Current | Is | - | 25 | - | mA | 100% duty |
| LED String Voltage | Vs | - | 26.6 | 27.5 | Volt | (3) |
| LED Life Time | LTled | 15,000 | - | - | Hour | (5) |
3.5 Electro-Optical Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|---|
| Static Contrast Ratio | CR | Normal direction at center point | 2000 | 3000 | - | - | (1)(2) |
| Response Time (Ton+Toff) | - | Normal direction at center point | - | 30 | 35 | ms | (3) |
| Crosstalk | CT-127 | Normal direction at center point | - | - | 1.2 | - | (2)(5) |
| Luminance of White (5 points) | L | Normal direction at center point | 212 | 250 | - | cd/m² | (4) |
| Luminous Uniformity (5 points) | ΔL5 | Normal direction at center point | 80 | 85 | - | % | (4) |
4. Interface Connection (Pin Description)
The LS156I03-L-V1 uses a 31-pin interface connector. The pinout includes a 2ch-LVDS interface for odd and even pixel data, ground pins, LCD power supply (LCD_VCC at 12V), backlight control signals (BL_ENABLE and BL_PWM DIM), and a BIST (Built-in Self-Test) pin for diagnostic purposes. The LVDS odd channel uses pins 1-12, and the even channel uses pins 14-25. The specified connector part is FI-RE31HL or equivalent.
| Pin No. | Symbol | I/O | Description |
|---|---|---|---|
| 1-6 | RxO0-/+, RxO1-/+, RxO2-/+ | I | Negative/Positive LVDS differential data input (Odd data) |
| 7, 10, 13, 20, 23, 26 | GND | P | Ground |
| 8-9 | RxOCLK-/RxOCLK+ | I | Negative/Positive LVDS differential clock input (Odd clock) |
| 11-12 | RxO3-/RxO3+ | I | Negative/Positive LVDS differential data input (Odd data) |
| 14-19 | RxE0-/+, RxE1-/+, RxE2-/+ | I | Negative/Positive LVDS differential data input (Even data) |
| 21-22 | RxECLK-/RxECLK+ | I | Negative/Positive LVDS differential clock input (Even clock) |
| 24-25 | RxE3-/RxE3+ | I | Negative/Positive LVDS differential data input (Even data) |
| 27-28 | LCD_VCC | P | LCD VCC (12V) |
| 29 | BIST | I | LCD self-test (Normal mode: NC or pull L; BIST mode: pull H) |
| 30 | BL_ENABLE | I | Backlight on/off (+3.3V Input) |
| 31 | BL_PWM DIM | I | System PWM |
5. Backlight System And Dimming Control
The backlight unit is an edge-lit type (E-LED) with a dedicated LED driver integrated on the module. The driver is controlled via two external signals: BL_ENABLE (pin 30) for on/off control, and BL_PWM DIM (pin 31) for brightness dimming. The PWM dimming frequency can range from 0.1 kHz to 20 kHz with a duty cycle from 1% to 100%. The LED light bar consists of 6 strings, each with 9 LEDs (6 strings total) in series, operating at a typical current of 25mA per string. The total backlight power consumption is typically 4.44W at 12V input with 100% duty cycle. The LED life time is rated at 15,000 hours (to 50% brightness).
6. Application Scenario
The 15.6-inch diagonal size of the LS156I03-L-V1, combined with its Full-HD (1920×1080, 16:9 aspect ratio) resolution and high static contrast ratio (3000:1 Typ.), makes it an ideal choice for Public Information Display (PID) products such as digital signage, kiosks, and information terminals. Its 16.7 million color (8-bit) display capability ensures smooth color transitions and vivid images. The 2ch-LVDS interface provides a standard, high-speed connection for video data. The module’s operating temperature range (0°C to +50°C) supports typical indoor use, while its storage temperature range (-20°C to +60°C) provides flexibility for shipping and storage. It is well-suited for a variety of embedded display applications requiring high image quality and reliability.
7. Handling Precautions And Compliance
The LCD panel is made of glass and is fragile. The polarizer surface is easily scratched. The module should be handled with care to avoid applying pressure on the display area. ESD (Electrostatic Discharge) protection is mandatory throughout handling and assembly. The module should be stored in a clean, dry environment away from direct sunlight and corrosive gases. The user is responsible for designing the cabinet to avoid mechanical stress and for maintaining proper ventilation around the module. It is strongly recommended to read the full specification document (LS156I03-L-V1 Product Specification Revision 1.0) before integration and to test the module under application-specific conditions to verify compatibility and performance. The manufacturer disclaims liability for damages resulting from improper use or modification. The product is RoHS compliant.
