LS156I04-L-V1: 15.6-inch Color Active Matrix LCD Module, FHD 1920×1080 Resolution, 16.7M Colors (8-bit), 2ch-LVDS Interface, Very High Contrast Ratio, Normally Black, 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+FPC+B/L Module Type, 16.7M Colors (8-bit), DE (Data Enable) Mode, 12V Typical LCD Power Supply, 3000:1 Typical Contrast Ratio, 30ms Typical Response Time, 220 cd/m² Typical Luminance, RoHS Compliant, Lesson Smart Display Technology
1. Executive Summary And Product Positioning
The LS156I04-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. It includes a light emitting diode (LED) backlight assembly with a built-in LED driver and is designed for high-performance Monitor products.
This product specification (Revision 1.0) serves as the definitive technical document, defining its structural composition (COG+FPC+B/L), general description, absolute maximum ratings, electrical characteristics, input terminal pin assignments, and optical and mechanical specifications. It supports a Full-HD resolution of 1920×1080 and can display up to 16.7 million colors (8-bit).
This module offers excellent performance including a very 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. The matrix employs a-Si TFT as the active element.
- Display Mode: Transmissive type display operating in the Normally Black mode.
- Display Format: Graphic 1920×1080 pixel array (FHD resolution).
- Display Characteristics: Capable of displaying up to 16.7 million colors (8-bit).
- Module Construction: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight Unit).
- Interface Type: 2ch-LVDS (2-Channel Low-Voltage Differential Signaling) interface. It uses DE (Data Enable) Mode.
- Backlight: White LED backlight assembly with an integrated LED driver. The LED driver is built-in.
- Special Features: Very high contrast ratio (3000:1), ultra wide viewing angle (178°), high color saturation, high color depth, RoHS compliant.
- Approval Status: Approved Product Specification only (Revision 1.0).
3. Exhaustive Technical Specifications
3.1 Absolute Maximum Ratings (TA = 25 ± 2 °C)
| 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.
3.2 Electrical Characteristics (LCD Drive)
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| Power Supply Voltage | Vcc | 10.8 | 12.0 | 13.2 | V | - |
| Rush Current | Irush | - | - | 3.0 | 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 |
| LCD Reset Voltage | Vccs_th | 8.0 | 9.5 | 10.5 | V | (4) |
3.3 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_ENABLE) | 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 | 22.5 | 25 | 27.5 | mA | 100% duty |
| LED String Voltage | Vs | 24.3 | 26 | 28.8 | Volt | (1) |
| LED Light Bar Power Consumption | PBLU | 4.05 | 4.32 | 4.59 | Watt | (2) |
| LED Life Time (Min) | LTled | 15,000 | - | - | Hour | If = 25mA (3) |
3.4 General Product Features
The LS156I04-L-V1 is a diagonal 15.6” color active matrix LCD module with a **2ch-LVDS interface**. It is a transmissive type display operating in the normally black mode. The module has the following key features:
- FHD Resolution (1920 × 1080)
- Very High Contrast Ratio: 3000:1
- Ultra Wide Viewing Angle: 178°(H)/178°(V) (CR≥10)
- DE (Data Enable) Mode
- LVDS (Low Voltage Differential Signaling) Interface
The module dedicates for **Monitor products** and provides excellent performance which includes high contrast ratio, high color saturation and high color depth.
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 | 200 | 220 | - | cd/m² | (4) |
| Luminous Uniformity (5 points) | ΔL5 | Normal direction at center point | 80 | 85 | - | % | (4) |
| Luminous Uniformity (13 points) | ΔL13 | Normal direction at center point | 62.5 | 70 | - | % | (4) |
3.6 Color Chromaticity (CIE1931) Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Note |
|---|---|---|---|---|---|---|
| White (Wx) | WX | Normal direction at center point | Typ.-0.03 | 0.313 | Typ.+0.03 | (2)(6) |
| White (Wy) | WY | Normal direction at center point | Typ.-0.03 | 0.329 | Typ.+0.03 | (2)(6) |
| Red (Rx) | RX | Normal direction at center point | Typ.-0.03 | 0.650 | Typ.+0.03 | (2)(6) |
| Red (Ry) | RY | Normal direction at center point | Typ.-0.03 | 0.338 | Typ.+0.03 | (2)(6) |
| Green (Gx) | GX | Normal direction at center point | Typ.-0.03 | 0.312 | Typ.+0.03 | (2)(6) |
| Green (Gy) | GY | Normal direction at center point | Typ.-0.03 | 0.615 | Typ.+0.03 | (2)(6) |
| Blue (Bx) | BX | Normal direction at center point | Typ.-0.03 | 0.150 | Typ.+0.03 | (2)(6) |
| Blue (By) | BY | Normal direction at center point | Typ.-0.03 | 0.071 | Typ.+0.03 | (2)(6) |
| Color Gamut | CG | Normal direction at center point | 68 | 72 | - | % NTSC |
4. Interface Connection (Pin Description)
The LS156I04-L-V1 uses a 40-pin interface connector (CN1: 300E40-0010RA-G3-D or equivalent). The pinout includes a 2ch-LVDS interface for odd and even pixel data, ground pins, LCD power supply (LCD_VCC at 12V), backlight power (BL_POWER at 12V), backlight control signals (BL_ENABLE and BL_PWM DIM), and a BIST (Built-in Self-Test) pin.
| Pin No. | Symbol | I/O | Description |
|---|---|---|---|
| 1-12 | RxO0-/+, RxO1-/+, RxO2-/+, RxOCLK-/+, RxO3-/+ | I | Negative/Positive LVDS differential data input (Odd data) and Odd clock |
| 7, 10, 13, 20, 23, 26 | GND | P | Ground |
| 14-25 | RxE0-/+, RxE1-/+, RxE2-/+, RxECLK-/+, RxE3-/+ | I | Negative/Positive LVDS differential data input (Even data) and Even clock |
| 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 |
| 33-35 | BL_POWER | P | LED Power Supply Input Voltage (12V) |
| 36-38 | GND | P | Ground |
| 39-40 | ID1, ID2 | - | Reserved PIN, Default 'H' and 'L', Recommendation NC (Note 2) |
5. Temperature Specifications
| Component | Symbol | Min. | Max. | Unit | Note |
|---|---|---|---|---|---|
| Source driver IC | T_DRIVER | - | 115 | °C | (1) |
| PMIC | T_PMIC | - | 100 | °C | (1) |
| TCON IC | T_TCON | - | 105 | °C | (1) |
6. Driver IC ESD Specification
The Electro-Static Discharge tolerance of the Source COF IC is ±2KV tested by ESD Gun. If the LCD module is designed with a Plastic Bezel, it is suggested that ESD protection solutions should be applied to avoid damage.
7. Mechanical Specification
The mechanical outline of the LS156I04-L-V1 includes detailed dimensions. The module has a specific outline and active area dimensions. The backlight luminance specification is 200 cd/m² (MIN) and 220 cd/m² (TYP). The luminance uniformity is specified at 75% (min) (min/max*100%). The LED circuit is configured as 9 series and 6 parallel (54 LEDs total). The operation conditions for the LED backlight are If = 120mA and Vf = 25.2 - 29.7V. The color coordinates are X = 0.27 - 0.35 and Y = 0.28 - 0.36. All materials comply with RoHS.
8. Application Scenario
The LS156I04-L-V1 is dedicated for **Monitor products**. Its 15.6-inch diagonal size with Full-HD (1920×1080) resolution, very high contrast ratio (3000:1 Typ.), and high color depth make it an ideal choice for standard monitors, all-in-one PCs, and professional display applications. The 2ch-LVDS interface provides a standard high-speed connection for video data. The module’s operating conditions support typical indoor monitor use.
9. 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 (LS156I04-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.
