LS101I20-L-V1: 10.1-Inch Color TFT LCD Module, WSVGA Resolution (1024×600), LVDS Interface, 16.7M Colors, High Brightness 400/500 nits
Product Subtitle / Keywords
10.1 Inch Display, 1024×600 WSVGA Resolution, Color Active Matrix TFT LCD, TN Technology, LVDS Interface (6/8-bit Selectable), Normally Black Display Mode, RGB Vertical Stripe, High Brightness 400 cd/m² or 500 cd/m² (TYP), Contrast Ratio, Anti-Glare Surface, White LED Backlight, Driver IC HX8282A11/HX8696, COG+FPC+B/L Module Type, Operating Temp -20~70°C, Storage Temp -30~80°C, Lesson Smart Display Technology Co., Ltd
1. Executive Summary & Product Positioning
The LS101I20-L-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 10.1-inch color active matrix thin film transistor (TFT) TN (Twisted Nematic) LCD module that uses amorphous silicon TFTs as a switching device. It is composed of a TFT LCD panel, Driver IC, FPC and Backlight.
The knowledge base contains two separate versions of the product specification for the same model number:
- Version 1 (uploaded 2025-12-23, doc dated 2022.04.30): Specifies a typical luminance of 400 cd/m² and a viewing direction of 80/80/80/80.
- Version 2 (uploaded 2025-12-23, published 2024-12-11): Specifies a typical luminance of 500 cd/m² and a viewing direction of 80/80/80/80.
This document provides the core parameters necessary for system integration into standard 10.1-inch industrial display applications. There is a key difference in the specified luminance between the two versions in the knowledge base — one states 400 nits and the other 500 nits (TYP). Engineers must verify the exact version with the supplier.
2. Detailed Product Overview & Architecture
- Core Technology: Color active matrix TFT TN LCD using amorphous silicon TFTs as a switching device. Composed of a TFT LCD panel, Driver IC, FPC and Backlight.
- Display Type: TN (Twisted Nematic) technology.
- Display Resolution: WSVGA: 1024(Horizontal) × 600(Vertical) pixel array.
- Pixel Arrangement: RGB Vertical Stripe.
- Display Format: Each pixel is divided into RED, GREEN, BLUE dots. Capable of displaying 16.7M colors.
- Display Mode: Normally Black (Transmissive).
- Module Construction: COG+FPC+B/L (Chip-On-Glass + Flexible Printed Circuit + Backlight).
- Interface Type: LVDS (Low-Voltage Differential Signaling), with support for both 6-bit and 8-bit data modes, selectable via the SELB pin.
- Driver IC: HX8282A11 / HX8696.
- Surface Treatment: Anti-Glare.
- Backlight: White LED backlight unit.
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Item | Specification | Unit |
|---|---|---|
| Module Model | LS101I20-L-V1 | - |
| LCD Size (Diagonal) | 10.1 | inch |
| Number of Pixels | 1024 × 600 (WSVGA) | Pixels |
| Active Area | 222.72 (H) × 125.28 (V) | mm |
| Pixel Pitch | 0.2175 (H) × 0.2088 (V) | mm |
| Outline Dimension | 235 (W) × 137 (H) × 5.0 (D) | mm |
| Number of Colors | 16.7M | - |
| Display Mode | Normally Black | - |
| Viewing Direction | 80/80/80/80 (Left/Right/Up/Down) | degrees |
| Display Format | RGB vertical stripe | - |
| Luminance (TYP) | 400 cd/m² or 500 cd/m² (see note) | cd/m² (nit) |
| Surface Treatment | Anti-Glare | - |
| Interface | LVDS (6/8-bit selectable) | - |
| Backlight | White LED | - |
| Driver IC | HX8282A11/HX8696 | - |
| Module Type | COG+FPC+B/L | - |
| Operating Temperature | -20 ~ +70 | °C |
| Storage Temperature | -30 ~ +80 | °C |
| Supplier | 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co.,Ltd) | - |
Important Note on Luminance: The knowledge base contains two different specification documents:
- File LS101I20-L-V1(SPEC).pdf (date 2022-04-30) lists Luminance as 400 cd/m² (TYP).
- File LS101I20-L-V1(SPEC)20241211.pdf (date 2024-12-11) lists Luminance as 500 cd/m² (TYP).
3.2 Electrical & Interface Specifications
3.2.1 Pin Description (40-pin FPC Connector - LVDS Interface)
The module uses a 40-pin FPC connector with an LVDS interface. Key signals include:
| PIN | SYMBOL | I/O | Function |
|---|---|---|---|
| 1, 2 | LED- | P | Power for LED backlight input (cathode) |
| 3, 4 | LED+ | P | Power for LED backlight (anode) |
| 5 | VCOM | P | Common voltage |
| 6, 7 | DVDD | P | Power for Digital Circuit |
| 9 | RESET | I | Global reset pin |
| 10 | STBYB | I | Standby mode control (1=normal, 0=standby) |
| 11, 14, 17, 20, 23, 26, 29, 34 | GND | P | Ground |
| 12, 13 | RXIN0- / RXIN0+ | I | LVDS differential data input (Lane 0) |
| 15, 16 | RXIN1- / RXIN1+ | I | LVDS differential data input (Lane 1) |
| 18, 19 | RXIN2- / RXIN2+ | I | LVDS differential data input (Lane 2) |
| 21, 22 | RXCLKIN- / RXCLKIN+ | I | LVDS differential clock input |
| 24, 25 | RXIN3- / RXIN3+ | I | LVDS differential data input (Lane 3) |
| 32 | SELB | P | 6bit/8bit mode select: SELB=1 → 6bit, SELB=0 → 8bit |
| 33 | AVDD | P | Power for Analog Circuit |
| 35 | L/R | I | Left / Right selection |
| 36 | U/D | I | Up / Down selection |
| 37 | VGL | P | Gate OFF Voltage |
| 8, 27, 28, 30, 31, 38 | NC | N | No connection |
Note: The full 40-pin assignment is available in the specification. This table covers the critical signals.
3.2.2 Absolute Maximum Ratings
| Parameter | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|
| Power supply voltage (VDD) | VDD | -0.5 | +3.9 | V |
| Power supply voltage (AVDD) | AVDD | -0.5 | +14.85 | V |
| Logic output voltage | VOUT | -0.5 | +5.0 | V |
| Input voltage | VIN | -0.5 | AVDD+0.5 | V |
3.2.3 Operating Conditions (TFT LCD Module)
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| TFT Gate on voltage | VGH | 15 | 18 | 22 | V |
| TFT Gate off voltage | VGL | -9 | -7 | -5 | V |
| TFT Common electrode voltage | VCOM | 4.0 | 4.4 | 4.7 | V |
| Analog power supply voltage | AVDD | 9.4 | 9.6 | 10.6 | V |
3.2.4 Current Consumption
| Item | Symbol | Condition | Typ. | Unit |
|---|---|---|---|---|
| Gate on Current | IVGH | VGH = 18 V | 5.6 | mA |
| Gate off Current | IVGL | VGL= -6.5 V | 8.1 | mA |
| Digital Current | IDVDD | DVDD = 3.3 V | 12.2 | mA |
| Analog Current | IAVDD | AVDD = 10.85 V | 29.7 | mA |
3.2.5 LVDS Mode DC Electrical Characteristics
| Parameter | Symbol | Condition | Min. | Max. | Unit |
|---|---|---|---|---|---|
| Differential input high Threshold | RxVTH | RxVCM=1.2V | - | +0.1 | V |
| Differential input low threshold | RxVTL | RxVCM=1.2V | -0.1 | - | V |
| Differential input voltage | VID | - | 0.2 | 0.6 | V |
| LVDS digital operating Current | Iddlvds | k=65MHz, VDD=3.3V | - | 30 | mA |
| LVDS digital stand-by Current | Istlvds | Clock & functions stopped | - | 50 | μA |
3.2.6 Input Timing Table (DE Mode)
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| DCLK frequency | fclk | 40.8 | 51.2 | 67.2 | MHz |
| Horizontal display area | thd | 1024 | 1024 | 1024 | DCLK |
| HSD period | th | 1114 | 1344 | 1400 | DCLK |
| HSD blanking | thb+thfp | 90 | 320 | 376 | DCLK |
| Vertical display area | tvd | 600 | 600 | 600 | TH |
| VSD period | tv | 610 | 635 | 800 | TH |
| VSD blanking | tvbp+tvfp | 10 | 35 | 200 | TH |
3.2.7 Power On/Off Sequence
An incorrect power sequence can damage the device. The specified sequence is:
- Power On: VDD, GND → AVDD, AGND → V1 to V14
- Power Off: V1 to V14 → AVDD, AGND → VDD, GND
The HX8282 has a built-in power on/off sequence control function. The rise time (TPOR) of VDD must be maintained within specification.
3.2.8 Backlight Specifications
The backlight uses a White LED configuration as shown in the internal circuit diagram (6x7=42 LEDs).
| Parameter | Typ. | Unit |
|---|---|---|
| LED Operating Voltage | 19V (at 6x7 config) | V |
| LED Current (total) | 140 (20mA x 7 series) | mA |
4. Application Guidelines & Critical Notes
Intended Use
- Standard 10.1-inch industrial and commercial display applications.
- Applications requiring WSVGA (1024×600) resolution with an LVDS interface.
- Systems requiring a Normally Black TN display with Anti-Glare surface treatment.
Critical Design Considerations
- Luminance Specification Difference: The knowledge base shows two versions of the specification – one with 400 cd/m² and one with 500 cd/m² (TYP). Engineers must confirm with the supplier which version applies to their shipment.
- LVDS Interface: This module uses a standard single-channel LVDS interface with 4 data lanes, supporting both 6-bit and 8-bit color depth via the SELB pin (SELB=1: 6-bit, SELB=0: 8-bit). The host LVDS transmitter must match the selected mode.
- 6-bit vs 8-bit Mode: The SELB pin (pin 32) controls the color depth. Ensure this pin is set correctly for your system. In 6-bit mode, only 262k colors are available; in 8-bit mode, 16.7M colors are available.
- Multi-Voltage Power Supply: The module requires multiple power supply voltages. While DVDD (digital) and AVDD (analog) are provided externally, VGH (gate on), VGL (gate off), and VCOM are generated internally from these supplies. The absolute maximum and operating condition tables specify the limits.
- Power Sequencing: Strict adherence to the power on/off sequence (VDD → AVDD → Gamma) is required to prevent latch-up. Follow the timing diagram in the specification.
- Backlight Driving: The internal circuit shows a 6x7 (42 LED) configuration. It requires a constant current driver capable of 140mA total current at about 19V.
- Anti-Glare Surface: The Anti-Glare treatment reduces screen reflections, improving readability in brightly lit environments.
- LVDS Clock Frequency: The DCLK frequency for HS (DE) mode is 51.2 MHz (Typ), with a range of 40.8 to 67.2 MHz. The host LVDS transmitter must operate within this frequency range.
- Operating Temperature Range: This module supports an extended industrial temperature range of -20°C to +70°C.
- Display Orientation Control: Pins 35 (L/R) and 36 (U/D) allow for screen orientation control, enabling flexibility in mounting orientation.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass and a precision FPC – handle with care.
- Avoid bending the FPC sharply, especially near the connector interface or glass edge.
- Do not attempt to disassemble or process the LCD module.
- All NC (No Connection) pins should be left open – do not connect them to ground or power.
- If the logic circuit power is off, do not apply input signals.
5. Conclusion & Design-In Support
The LS101I20-L-V1 specification details a standard 10.1-inch WSVGA TFT LCD module with an LVDS interface, TN technology, Anti-Glare surface, and a wide operating temperature range of -20°C to +70°C.
Key Strengths
- Standard LVDS Interface: Easy to integrate with most embedded processors.
- High/Luminance Options: Available in 400 and 500 cd/m² versions (confirm with supplier).
- 6/8-bit Selectable Color: Provides flexibility between color depth and interface speed.
- Wide Temperature Range: Suitable for industrial environments (-20°C to +70°C).
- Anti-Glare Surface: Reduces glare in bright environments.
- Driver IC with Integrated Power Control: HX8282 includes built-in power sequence control.
Main Design Focus
- The critical design task is configuring the host LVDS transmitter for WSVGA (1024×600) resolution at the correct clock frequency (51.2 MHz Typ) and correctly setting the SELB pin (pin 32) for either 6-bit or 8-bit color mode.
- Supporting requirements: Provide a stable DVDD (3.3V) and AVDD (~10.85V) power supply. Design a constant current backlight driver capable of 140mA at 19V. Confirm the correct luminance version (400 or 500 cd/m²) with the supplier.
This module is a reliable choice for applications requiring a standard 10.1-inch WSVGA LVDS display with industrial temperature support and Anti-Glare surface.
