LS215I03-L-V1: 21.5-inch Color Active Matrix TFT-LCD Module, FHD 1920×1080 Resolution, 16.7M Colors (8-bit), 2ch-LVDS Interface, High Contrast Ratio, Normally Black, Lesson Smart Display Technology
Product Subtitle / Keywords
21.5 Inch Display, 1920×1080 FHD Resolution, Color Active Matrix a-Si TFT-LCD, Transmissive Type, Normally Black Mode, 2ch-LVDS Interface, 16.7M Colors (8-bit), 495.6 × 292.2 mm Module Size, 478.656 × 260.28 mm Active Area, 5V Typical Power Supply, 3000:1 Typical Contrast Ratio, 250 cd/m² Typical Luminance, 6.5ms Typical Response Time, 72% NTSC Color Gamut, 89° Viewing Angle, Monitor Products, RoHS Compliant, Lesson Smart Display Technology
1. Executive Summary And Product Positioning
The LS215I03-L-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 21.5-inch color active matrix TFT-LCD module with a light emitting diode (LED) backlight assembly. It is designed for high-performance Monitor products.
This product specification (Revision 1.0) serves as the definitive technical document. It supports a Full-HD resolution of 1920×1080 and can display up to 16.7 million colors (8-bit).
This module provides excellent performance which includes a high contrast ratio, 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 thin film transistor as the active element.
- Display Mode: Transmissive type display operating in the Normally Black mode.
- Display Format: Graphic 1920×1080 pixel array (FHD resolution). Each pixel is divided into Red, Green and Blue sub-pixels which are arranged in vertical stripe.
- Display Characteristics: Capable of displaying up to 16.7 million colors (8-bit).
- Interface Type: 2ch-LVDS (2-Channel Low-Voltage Differential Signaling) interface.
- Backlight: LED backlight assembly, without LED driver. An external LED driver is required.
- Special Features: High contrast ratio (3000:1 Typ.), high color saturation, high color depth (72% NTSC), ultra wide viewing angle, RoHS compliant.
- Approval Status: Approved Product Specification only (Revision 1.0).
3. Exhaustive Technical Specifications
3.1 Mechanical Specifications
| Item | Specification | Unit |
|---|---|---|
| Module size (H×V×D) | 495.6 × 292.2 × 10.7 | mm |
| Number of dots | 1920(RGB) × 1080 | pixel |
| Active area (H×V) | 478.656 × 260.28 | mm |
3.2 Electrical Characteristics
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| Power Supply Voltage | $V_{CC}$ | 4.5 | 5.0 | 5.5 | V | (1) |
| Rush Current | IRUSH | - | - | 3 | A | (2) |
| Power Consumption (Mosaic Pattern) | Poc | -- | 3.70 | 4.45 | Watt | 60Hz |
Note: The ripple voltage should be controlled less than 10% of VCC.
3.3 LVDS Interface Characteristics
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|
| Differential Input High Threshold Voltage | $V_{TH}$ | +100 | - | - | mV | (1) |
| Differential Input Low Threshold Voltage | $V_{TL}$ | - | - | -100 | mV | (1) |
| Common Input Voltage | $V_{CM}$ | 1.0 | 1.2 | 1.4 | V | (1) |
| Differential Input Voltage | $|V_{ID}|$ | 100 | - | 600 | mV | (1) |
| Terminating Resistor | $R_{T}$ | 87.5 | 100 | 112.5 | ohm | (1) |
3.4 Timing Characteristics
| Signal | Item | Symbol | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|---|
| LVDS Receiver Clock | Frequency | Fclkin | 64 | 74.25 | 96 | MHz | (1)(2) |
| Vertical Active Display Term | Frame Rate | F | 48 | 60 | 75 | Hz |
3.5 Optical Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|---|
| Static Contrast Ratio | CR | Normal direction at center point with CSOT's BLU | 2000 | 3000 | - | - | (1)(2) |
| Response Time | $T_{L}$ | Normal direction at center point with CSOT's BLU | - | 6.5 | 12 | ms | (3) |
| Crosstalk | CT-2D | Normal direction at center point with CSOT's BLU | - | - | 4% | - | (2)(5) |
| Luminance of White | Normal direction at center point with CSOT's BLU | 200 | 250 | - | cd/m² | Center | |
| Luminous Uniformity | Normal direction at center point with CSOT's BLU | 75 | 80 | - | % | Center |
3.6 Color Chromaticity (CIE1931) Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Note |
|---|---|---|---|---|---|---|
| Color Gamut | CG | Normal direction at center point with CSOT's BLU | 68 | 72 | - | % NTSC |
3.7 Viewing Angle
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|---|
| Horizontal (Left/Right) | θH+ / θH- | CR≥10 | 80 | 89 | - | Deg. | (7) |
| Vertical (Top/Bottom) | θV+ / θV- | CR≥10 | 80 | 89 | - | Deg. | (7) |
3.8 LED Backlight Characteristics
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|
| LED String Current | Is | 49.5 | 52 | 55 | [mA] | 100% duty ratio of LED chip |
| LED String Voltage | Vs | 42.5 | 45.9 | 49.30 | [Volt] | (1) |
| LED Light Bar Power Consumption | PBLU | 8.88 | 10.10 | 11.39 | [Watt] | (2) |
| LED Life Time | LTLED | 30,000 | - | - | [Hour] | (3) |
4. Interface Connection (Pin Description)
The LS215I03-L-V1 uses a 30-pin connector. The pinout includes a 2ch-LVDS interface for odd and even pixel data, ground pins, DC power supply (5V), and I2C interface pins for VCOM adjustment.
| Pin No. | Symbol | Description | Note |
|---|---|---|---|
| 1 | RO[0]N | Odd LVDS Signal - | |
| 28, 29, 30 | 5V | DC power supply | |
| 25 | WP | Write Protect (High: Write Enable, Low or Open: Write Disable ) | (2) |
| 26 | SCL | I2C Serial Clock (for adjust VCOM) | (2) |
| 27 | SDA | I2C Serial Data (for adjust VCOM) | (2) |
Complete pin description is available in the full specification document.
5. Application Scenario
The LS215I03-L-V1 is dedicated for Monitor products. Its 21.5-inch diagonal size with Full-HD (1920×1080) resolution, high contrast ratio (3000:1 Typ.), high color depth (72% NTSC), and ultra wide viewing angle (89°) make it an ideal choice for professional monitors, all-in-one PCs, and standard display applications requiring high image quality.
6. 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. It is strongly recommended to read the full specification document (LS215I03-L-V1 Product Specification Revision 1.0) before integration and to test the module under application-specific conditions. The manufacturer disclaims liability for damages resulting from improper use or modification. The product is RoHS compliant.
