LS156I02-E-V1: 15.6-inch Color Active Matrix TFT LCD Module, FHD 1920×1080 Resolution, 16.7M Colors (8-bit), eDP Interface, 30-Pin, Normally Black
Product Subtitle / Keywords
15.6 Inch Display, 1920(RGB)×1080 FHD Resolution, Transmissive Color Active Matrix a-Si TFT-LCD, Normally Black Mode, eDP Interface, COG+FPC+B/L Module Type, 16.7M Colors (8-bit), 30-Pin Connector, 3.3V Typical Logic Supply, 12V Typical Backlight Supply, 0°C~+50°C Operating Temperature, -20°C~+60°C Storage Temperature, White LED Backlight (Built-in Converter, 6S9P Configuration), Lesson Smart Display Technology
1. Executive Summary And Product Positioning
The LS156I02-E-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 transmissive type color active matrix TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module, which is an open cell unit consisting of a TFT-LCD panel, driver circuit, and a backlight unit.
This product specification (Revision 1.0) serves as the definitive technical document, defining its structural composition (COG+FPC+B/L), general description, physical features, absolute maximum ratings, electrical characteristics, and optical specifications. It supports a Full-HD resolution of 1920×1080 and can display up to 16.7 million colors (8-bit).
This document provides the core parameters necessary for system integration into high-definition, large-size display applications requiring a standard high-speed embedded display interface. 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 with the driving circuit and backlight unit.
2. Detailed Product Overview And Architecture
- Core Technology: Color active matrix TFT-LCD using amorphous silicon TFT's as active switching devices.
- Display Mode: Transmissive type, Normally Black mode.
- Display Format: Graphic 1920(RGB)×1080 pixel array (FHD format).
- 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: eDP (Embedded DisplayPort) interface with main link, AUX channel, and HPD.
- Connector Pin Count: 30-Pin.
- Backlight LED: White LED backlight with built-in LED Converter. The LED bar is configured as 6S9P.
- Special Features: FHD resolution, 16.7M color display capability.
- Approval Status: Approved Product Specification only (Revision 1.0).
3. Exhaustive Technical Specifications
3.1 General Specifications Table
| Parameter | Specification | Unit | Note |
|---|---|---|---|
| Panel Size (Diagonal) | 15.6 | inch | Measured diagonally |
| Number of Dots / Resolution | 1920(RGB) x 1080 | pixels | FHD format |
| Display Type | Color Active Matrix a-Si TFT, Transmissive, Normally Black | - | Open Cell |
| Module Type | COG+FPC+B/L | - | Integrated construction |
| Display Colors | 16.7M | colors | 8-bit RGB signal input |
| Pixel Arrangement | RGB Vertical Stripe | - | Standard stripe |
| Interface Type | eDP (Embedded DisplayPort) | - | 30-pin connector |
| Backlight Type | White LED, Edge Light | - | Built-in Converter |
| Operating Temperature | 0 to +50 | °C | Ta = 25±2°C |
| Storage Temperature | -20 to +60 | °C | - |
3.2 Mechanical Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Module size (H×V×D) | 350.56 × 214.53 × 2.68 | mm |
| Number of dots | 1920(RGB) × 1080 | pixel |
| Active area (H×V) | 344.16 × 193.59 | mm |
3.3 Electrical And Interface Specifications
3.3.1 LED Converter Specification (Ta=25°C±2°C)
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| Converter Input power supply voltage | LED_VCCS | 5.0 | 12.0 | 21.0 | V | - |
| Converter Inrush Current | $ILED_{RUSH}$ | - | - | 1.5 | A | (1) |
| EN Control Level (Backlight On) | - | 1.5 | - | 3.6 | V | - |
| PWM Control Duty Ratio | - | 1 | - | 100 | % | - |
| PWM Control Frequency | $f_{PWM}$ | 200 | - | 2000 | Hz | - |
| LED Power consumption | $P_{L}$ | - | - | 3.85 | W | (2) |
| LED Power Current | ILED | - | - | 275 | mA | (3) |
Note (1) IRUSH: the maximum current when LED_VCCS is rising. Note (2) PL = IL × VL (With LED converter transfer efficiency). Note (3) Specified at LED_VCCS = Typ., Ta = 25 ± 2 °C, fPWM = 200 Hz, Duty=100%.
3.3.2 Recommended Backlight Unit (LED Light Bar) Specifications (Ta=25°C±2°C)
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| LED Light Bar Power Supply Voltage | VL | - | 27 | - | V | Duty100% |
| LED Light Bar Power Supply Current | IL | - | 120 | - | mA | Duty100% |
Note (3): Recommended B/L configuration: 6S9P (6 series, 9 parallel, total 54 LEDs).
3.3.3 eDP AUX Channel Characteristics
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| Unit Interval for AUX channel | $U_{AUX}$ | 0.4 | - | 0.6 | μS | - |
| Peak-to-peak voltage at TP1 | $V_{AUX-DIFF-pp}$ | 0.39 | - | 1.38 | V | - |
| AUX DC Common mode Voltage | $V_{AUX-DC-CM}$ | 0 | - | 2 | V | - |
| AUX Short current limit | $I_{AUX_SHORT}$ | - | - | 90 | mA | - |
| AUX CH termination DC resistor | $R_{AUX_TERM}$ | 80 | 100 | 120 | Ω | Differential input |
| AUX AC coupling capacitor | $C_{AUX}$ | 75 | - | 200 | nF | - |
3.3.4 Hot Plug Detect (HPD) Characteristics
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| Hot plug Detect | $V_{HPD}$ | 2.25 | - | 3.6 | V | - |
4. Power On/Off Sequence
A strict power-on and power-off sequence must be followed to prevent latch-up or DC operation of the LCD module. The timing diagram shows the relative timing of VCCS (LCD Power), Black Video from Source, HPD, AUX Channel, Main Link Data, LED_VCCS (Backlight Power), LED_PWM (Dimming Signal), and LED_EN (Enable Signal).
Critical requirements include: The backlight must be turned on only after the power supply for the logic and the interface signal is valid. The backlight must be turned off before the power supply for the logic and the interface signal is invalid. Additionally, the total time delay T4+T5+T6+T8 must be greater than 80ms. Failure to adhere to this sequence may cause abnormal display or damage to the module.
5. Backlight System And Dimming Control
The backlight unit uses an edge-lit LED configuration with a built-in LED Converter to simplify system integration. The converter input voltage range (LED_VCCS) is wide, from 5.0V to 21.0V, with a typical value of 12.0V.
Backlight on/off and brightness control are managed via external signals to the converter: The EN (Enable) pin controls the on/off state, while the PWM pin provides brightness dimming control. The PWM control frequency range is 200 Hz to 2000 Hz. The LED light bar configuration is 6 series by 9 parallel (6S9P), totaling 54 LEDs, with a typical operating current of 120 mA and a voltage of 27V. The block diagram of the module shows the connection between the Timing Controller, EDID EEPROM, DC/DC Converter, Input Connector, and the LED Converter.
6. Application Scenario
The 15.6-inch diagonal size of the LS156I02-E-V1, combined with its Full-HD (1920x1080, 16:9 aspect ratio) resolution, makes it an ideal choice for standard Notebook PCs, Portable Monitors, and Public Information Displays. Its 16.7 million color (8-bit) display capability ensures smooth color transitions and vivid images. The eDP interface simplifies integration with modern processors and graphics controllers. The module’s operating temperature range of 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 a balance of size, resolution, and standard interface compatibility.
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 (LS156I02-E-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.
