LSC1010I21-L-V3 | 10.1 inch TFT-LCD | 1024x600 (WSVGA) | TN | LVDS | With CTP
1. Executive Summary & Product Positioning
The LSC1010I21-L-V3 is a 10.1-inch color active matrix TFT LCD module developed by 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd). This module uses amorphous silicon TFTs as switching devices and is composed of a TN (Twisted Nematic) LCD panel, Driver IC, FPC (Flexible Printed Circuit), and Backlight. It features a built-in capacitive touch panel (CTP). With a resolution of 1024×600 (WSVGA), it is a cost-effective and reliable display solution. This is the V3 version of the product.
Product Positioning: This module is designed for a wide range of industrial and commercial applications such as human-machine interfaces (HMI), industrial control panels, and embedded systems. The TN display technology offers a fast response time and is well-suited for applications where wide viewing angles are not the primary requirement. The inclusion of a capacitive touch panel (GT911) simplifies system integration and enables modern touch-based interactions. The module uses a standard LVDS interface for easy connection to a variety of host processors.
2. Detailed Product Overview & Architecture
The module's architecture is designed for robust performance and straightforward integration. The primary components include:
- TFT-LCD Panel: 10.1-inch diagonal, a-Si TFT active matrix, TN (Twisted Nematic) display mode. The active area is 222.72 mm (W) × 125.28 mm (H). The pixel pitch is 0.2175 mm (H) × 0.2088 mm (V).
- Driver IC & TCON: The module supports an LVDS interface for video data. The block diagram indicates a 1024 pixel by 600 line display array.
- Backlight Unit (B/L): A white LED backlight unit consisting of 6 LED bars, each with 7 LED dies (6x7=42 dies). The typical current (I_F) is 190mA, and the typical voltage (V) is 9.6V. The brightness is typically 220 cd/m².
- Touch Panel (CTP): The module includes an integrated capacitive touch panel controlled by a GT911 touch controller IC. It communicates via a dedicated I2C interface (SCL, SDA) with interrupt (INT) and reset (RST) pins. The CTP uses a G+G structure with a South Glass (南玻白玻) cover lens.
- Mechanical Construction: COG (Chip-on-Glass) + FPC + B/L + CTP. The module outline dimensions are 235.0 mm (W) × 143.0 mm (H) × 2.90 mm (D). The CTP has a surface hardness of ≥6H (Pencil hardness test).
3. Exhaustive Technical Specifications
3.1 General & Mechanical Specifications
| Item | Specification |
| Display Size (Diagonal) | 10.1 inches |
| Resolution (Dots) | 1024(RGB) × 600 (WSVGA) |
| Display Technology | a-Si TFT, TN, Normally Black |
| Module Construction | COG+FPC+B/L+CTP |
| Display Mode | Normally Black |
| Display Format | RGB Vertical Stripe |
| Viewing Direction | Free (Free) |
| Luminance (Brightness, Typ) | 220 cd/m² (Typ), 210 cd/m² (Min) |
| Contrast Ratio (Typical) | 600:1 (Typ) |
| Active Area (W×H) | 222.72 mm × 125.28 mm |
| Outline Dimensions (W×H×D) | 235.0 mm × 143.0 mm × 2.90 mm |
| Surface Treatment | Hard Coating (Hard Coating) |
| Interface | LVDS |
| Backlight | White LED, 6x7=42 dies, 190mA, 9.6V |
| Touch Controller IC | GT911 (Goodix) |
| Operation Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +70°C |
3.2 Mechanical Specification Details (From Drawing)
The mechanical drawing provides more detailed and specific information about the module's physical construction.
- CTP (Cover Glass): The cover glass dimensions are provided (Lens VA: 245.30±0.15, LCD AA: 222.72). The lens is made of 南玻 (CSG) material with a thickness of 1.10mm.
- Structure: The drawing details the full-stack structure: 0.70t Sensor + 0.20t SCA + 1.10t Lens.
- FPC Reinforcement: The FPC has a PI (Polyimide) reinforcement and a steel sheet reinforcement at the connector end. The total thickness at the connector end is T=0.30±0.03mm.
- Backlight Configuration (From drawing): The backlight circuit diagram confirms a 6X7=42 LED dies configuration with typical voltage V=19.2V and current I=140mA. The backlight pins (LED+ and LED-) are clearly labeled.
- Connector: The interface is a 30-pin connector. The drawing shows a 0.5mm pitch FPC connector.
- Regulatory Compliance: The drawing notes compliance with EU RoHS and Halogen-Free requirements.
3.3 Interface & Electrical Specifications
3.3.1 Pin Description (From Specification)
| Pin No. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | VCOM | P | Common Voltage |
| 2, 3 | VDD | P | Power Voltage for digital circuit |
| 5 | RESET | I | Global Reset Pin (Active Low). Suggest RC circuit (R=10K, C=0.1uF). |
| 6 | STBYB | I | Standby Mode (Normal High for normal operation) |
| 7, 10, 13, 16, 19, 22, 25, 30 | GND | P | Ground |
| 8, 9, 11, 12, 14, 15, 17, 18, 20, 21 | RXIN0-/+ to RXIN3-/+ | I | LVDS Differential Data Input (4 Pairs) |
| 23, 24 | RXCLKIN-, RXCLKIN+ | I | LVDS Differential Clock Input |
| 28 | SELB | I | 6-bit/8-bit Mode Select (High=6bit, Low=8bit) |
| 29 | AVDD | P | Power for Analog Circuit |
| 33 | L/R | I | Horizontal inversion control (Note 2) |
| 34 | U/D | I | Vertical inversion control (Note 2) |
| 31, 32 | LED- | P | LED Cathode |
| 39, 40 | LED+ | P | LED Anode |
Note 1: SELB pin is used for 6bit/8bit mode selection.
Note 2: L/R and U/D pins control the display scan direction. For example, L/R=0 sets right to left scan.
3.3.2 Absolute Maximum Ratings
| Item | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| LC Operating Voltage | V_OP | -- | 4.5 | V |
| Operating Temperature | T_OP | -20 | 70 | °C |
| Storage Temperature | T_ST | -30 | 80 | °C |
3.3.3 Electrical Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Power For Analog Circuit | AVDD | 9.6 | V |
| TFT Gate ON Voltage | VGH | 21.0 | V |
| TFT Gate OFF Voltage | VGL | -8.0 | V |
| TFT Common Electrode Voltage | VCOMH | 4.3 | V |
| TFT Common Electrode Voltage | VCOML | 4.1 | V |
3.3.4 Touch Panel I2C Interface (From CTP Drawing)
The touch controller (GT911) uses a dedicated 6-pin I2C interface. Key signals include:
- VCC (3.3V): Power supply for the touch controller.
- GND: Ground.
- INT: Touch interrupt.
- RST: Touch controller reset.
- SDA: I2C Data.
- SCL: I2C Clock.
3.3.5 Backlight Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| LED Current | IF | - | 190 | - | mA |
| LED Voltage | V | 9.0 | 9.6 | 10.8 | V |
| LED Lifetime | T | - | 10000 | - | hrs |
3.4 Reliability & Warranty
The module has undergone standard reliability tests for temperature, humidity, shock, and vibration. The warranty period is 12 months from the date of shipping under normal using and storage conditions.
4. Application Guidelines & Critical Notes
When integrating the LSC1010I21-L-V3 module, engineers must adhere to the specific guidelines outlined in the specification to ensure optimal performance and reliability.
- Power Supply (AVDD, VDD): The module requires a stable power supply for the analog circuit (AVDD = 9.6V) and the digital circuit (VDD = 3.3V). The pinout includes VCOM voltage which must be properly driven.
- Reset Circuit (RESET): Pin 5 (RESET) is an active-low global reset. The spec suggests adding an RC reset circuit (R=10K ohm, C=0.1uF) for stability. If no RC circuit is used, the signal must be held low for more than 50ms.
- Standby Mode (STBYB): Pin 6 is the standby control. It should be pulled high for normal operation. Pulling it low will turn off the timing controller and source driver.
- LVDS Interface: The module uses a single-channel 4-pair LVDS interface. The clock and data pairs must be routed with controlled 100-ohm differential impedance. The SELB pin (Pin 28) must be set correctly for 6-bit (High) or 8-bit (Low) LVDS data input.
- Backlight Driver: The backlight has a specific current (190mA Typ) and voltage (9.6V Typ) requirement. An external LED driver is needed for constant current control. The circuit diagram shows a 6x7 LED matrix, so the driver must provide the appropriate voltage boost.
- Capacitive Touch Panel (CTP): The integrated GT911 touch controller communicates via an I2C interface. Proper I2C pull-up resistors (typically 4.7kΩ) are required on the SCL and SDA lines.
- Mechanical Mounting: The module has an outline size of 235.0mm x 143.0mm x 2.90mm. The mounting area requires careful consideration of the CTP overlay and bezel design.
- Power On/Off Sequence: The specification details a specific power-on and power-off timing sequence to prevent damage to the IC.
5. Conclusion & Design-In Support
The LSC1010I21-L-V3 from Lesson Smart Display Technology is a reliable and cost-effective 10.1-inch WSVGA display module. Its TN technology, LVDS interface, and integrated capacitive touch panel (GT911) make it a practical solution for a wide variety of industrial and embedded HMI applications.
For design-in support, it is strongly recommended to:
- Obtain and review the full Product Specification (Revision 1.0) for the complete set of electrical characteristics, detailed LVDS timing diagrams, and the precise power sequencing.
- Design the power supply and LED backlight driver according to the specified voltages and currents (AVDD 9.6V, BL 9.6V/190mA).
- Utilize the mechanical drawing to create an accurate enclosure design, paying attention to the active area, viewing area, and CTP mounting details.
- Contact the manufacturer for evaluation kits, sample requests, and technical support during the design-in phase.
This module is engineered to provide consistent and reliable performance for a wide range of commercial and industrial applications.
