LS2145I01-L-V1: 21.45-inch FHD LCD Open Cell, 1920×1080, LVDS Interface, 16.7M Colors (8-bit), Very High Contrast Ratio 4000:1, CID Products
Product Subtitle / Keywords
21.45 Inch Display, 1920×1080 FHD Resolution, Color Active Matrix LCD Open Cell, a-Si TFT Active Matrix, Transmissive Type, Normally Black Mode, 2 Channel LVDS Interface, 16.7M Colors (8-bit), 478.656 (H) x 260.28 (V) mm Active Area, 4000:1 Typ. Contrast Ratio, Cell Transmittance 4.4%, Ultra Wide Viewing Angle: 178°(H)/178°(V) (CR≥10), 72% NTSC Color Saturation, Fast Response Time 8ms, DE (Data Enable) Mode, CID Products, RoHS Compliant
1. Executive Summary And Product Positioning
The LS2145I01-L-V1 is a diagonal 21.45" color active matrix LCD open cell with 2 Channel interface. It is dedicated for CID (Commercial and Industrial Display) products.
This product specification (Ver. 2.1) serves as the definitive technical document. The module is a transmissive type display operating in the normally black mode. It supports 1920×1080 FHD resolution and can display up to 16.7M colors (8 bit).
This open cell provides excellent performance which includes high contrast ratio, high color saturation and high color depth. The unequivocal recommendation for engineers is to strictly adhere to the absolute maximum ratings, electrical specifications, and interface timing described herein to ensure reliable performance and compatibility.
2. Detailed Product Overview And Architecture
- Core Technology: Color active matrix LCD (Liquid Crystal Display) open cell using a-Si (amorphous silicon) TFT (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: LVDS (Low Voltage Differential Signaling) interface, 2 Channel, DE (Data Enable) Mode.
- Module Construction: Open Cell (LCD panel only, without backlight unit).
- Glass Thickness: Array / CF = 0.5 / 0.5 mm.
- Special Features: Very High Contrast Ratio (4000:1), Ultra Wide Viewing Angle (178°(H)/178°(V) (CR≥10)), High Color Saturation (72% NTSC), Fast Response Time, RoHS compliant.
- Approval Status: Approved Product Specification (Ver. 2.1).
3. Exhaustive Technical Specifications
3.1 General Information
| Item | Specification | Unit | Note |
|---|---|---|---|
| Active Area (H * V) | 478.656 (H) x 260.28 (V) | mm | |
| Cell Size (H * V * D) | 487.456 (H) * 270.18 (V)* 1.335 (D) | mm | W/O side sealing |
| Weight | 0.418 | kg | Typ. |
| Driving Scheme | a-Si TFT Active Matrix | - | |
| Number of Pixels | 1920 x 1080 | pixel | |
| Pixel Pitch (Sub Pixel) | 0.0831 (H) x 0.241 (V) | mm | |
| Pixel Arrangement | RGB Vertical Stripe | - | |
| Display Colors | 16.7M | color | 8bit |
| Display Mode | Transmissive Mode, Normally Black | - | |
| Glass thickness (Array / CF) | 0.5 / 0.5 | mm | |
| Color Chromaticity (White) | (0.280, 0.316) | - | Typical value measured with CSOT's Flat Backlight at refresh rate FR = 60Hz. (CSOT Flat BLU Wx=0.278 · Wy=0.272 ) |
3.2 Optical Characteristics (Open Cell Performance)
Test Conditions: Ta=25±2°C, HA=50±10%RH, VCC=5V, FR=60Hz. Measured with CSOT's module: LS2145I01-L-V1 and CSOT's Flat BLU (Wx=0.278 · Wy=0.272) using CA310, ELDIM OPTI Scope-SA and ELDIM EZ contrast in dark room.
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|---|---|
| Static Contrast Ratio | CR | θH = 0°, θV = 0° Normal direction at center point | - | 4000 | - | - | (1)(2) |
| Center Transmittance | Tr | θH = 0°, θV = 0° Normal direction at center point | - | 4.4 | - | % | (2)(4) |
| Gamma | - | θH = 0°, θV = 0° Normal direction at center point | 2.0 | 2.2 | 2.4 | - | |
| Viewing Angle (CR>10) | θH+ | Horizontal (Right) | - | 89 | - | Deg. | (6) |
| Viewing Angle (CR>10) | θH- | Horizontal (Left) | - | 89 | - | Deg. | (6) |
| Viewing Angle (CR>10) | θV+ | Vertical (Up) | - | 89 | - | Deg. | (6) |
| Viewing Angle (CR>10) | θV- | Vertical (Down) | - | 89 | - | Deg. | (6) |
| Response Time | TL | θH = 0°, θV = 0°, FR = 60Hz | - | 8 | 12 | ms | (3) |
3.3 Color Chromaticity (CIE1931) - Open Cell with BLU
| Color | Symbol | Min. | Typ. | Max. | Note |
|---|---|---|---|---|---|
| Red | RX / RY | Typ. -0.03 | 0.651 / 0.651 | Typ. +0.03 | (2)(5) |
| Green | GX / GY | Typ. -0.03 | 0.651 / 0.651 | Typ. +0.03 | (2)(5) |
| Blue | BX / BY | Typ. -0.03 | 0.651 / 0.651 | Typ. +0.03 | (2)(5) |
| White | WX / WY | Typ. -0.03 | 0.651 / 0.651 | Typ. +0.03 | (2)(5) |
| Color Gamut | CG | Typ. -0.03 | 72 | - | % NTSC |
Note: The typical values for color coordinates appear consolidated in the specification. Please refer to the detailed table in the original document for exact values.
3.4 Temperature Specifications
| Item | Symbol | Min. | Max. | Unit | Note |
|---|---|---|---|---|---|
| Operating Temperature | TOP | 0 | +50 | °C | |
| Storage Temperature | TST | -20 | +60 | °C |
3.5 LVDS Interface Characteristics
The open cell operates at Vcm = 1.2V. The LVDS input signal is differential. The module uses a 30-pin connector (CN1). Key interface characteristics include:
- The LVDS cable impedance shall be 50 ohms per signal line or about 100 ohms per twist-pair line.
- A 100 ohms (Ω) resistor is used between positive and negative lines of each receiver input.
- The TFT LCD open cell is operated in DE (Data Enable) only mode; H sync and V sync input signal have no effect on normal operation.
3.6 Packing Specifications
| Item | Quantity | Dimension (mm) | Weight (kg) |
|---|---|---|---|
| Packing Box | 20 pcs/box | 605 (L) x 480 (W) x125 (H) | Net: 8.4 / Gross: 9.2 |
| Pallet | 1 | 1250 (L) x 1000 (W) x144 (H) | Net: 17 |
| Stack Layer | 8 | - | - |
| Boxes per Pallet | 32 | - | - |
| Pallet after Packing | 640 pcs/pallet | 1250 (L) x 1000 (W) x1099 (H) | Gross: 313 |
| Pallet Stack Layer | 2 layers | - | For Warehouse, 40GP, 40HQ |
4. Application Scenario
The LS2145I01-L-V1 is dedicated for CID (Commercial and Industrial Display) products. Its 21.45-inch diagonal size with Full-HD (1920×1080) resolution, very high contrast ratio (4000:1), and ultra wide viewing angle (178°) make it an ideal choice for commercial signage, industrial monitors, public information displays, and other professional applications requiring excellent image quality and reliability.
5. Handling Precautions And Compliance
The LCD open cell 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 (LS2145I01-L-V1 Specification Ver. 2.1) 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 (CSOT open cell comply with RoHS for identification).
