LSC101I26-L-V1 | 10.1 inch TFT-LCD | 1024x600 (WSVGA) | TN | LVDS | With CTP
1. Executive Summary & Product Positioning
The LSC101I26-L-V1 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 (Thin Film Transistors) as switching devices. It is composed of a TFT LCD panel, Driver IC, FPC (Flexible Printed Circuit), and Backlight. This TFT LCD has a 10.1-inch diagonally measured active display area with WSVGA resolution (1,024 vertical by 600 horizontal pixel array). This module includes a capacitive touch panel (CTP).
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 simplifies system integration. A key feature is its high typical brightness of 500 cd/m², making it suitable for use in environments with high ambient light. 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 pixel arrangement is RGB vertical stripe.
- Driver IC & TCON: The module supports an LVDS interface for video data. The specification details a 40-pin connector pinout for the LCD module and a separate 6-pin interface for the I2C-based touch controller.
- Backlight Unit (B/L): A white LED backlight unit consisting of 27 LEDs. The typical brightness is 500 cd/m².
- Touch Panel (CTP): The module includes an integrated capacitive touch panel controlled by a dedicated touch IC. It communicates via a standard I2C interface (SCL, SDA) with interrupt (INT) and reset (RST) pins.
- Mechanical Construction: COG (Chip-on-Glass) + FPC + B/L + CTP. The module has a 40-pin main interface connector.
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 (Twisted Nematic) |
| Module Construction | COG+FPC+B/L+CTP |
| Color Depth | 262K / 16.2M / 16.7M Colors (based on LVDS data width) |
| Display Format | RGB Vertical Stripe |
| Viewing Direction | Free (Free) |
| Luminance (Brightness, Typ) | 500 cd/m² (Typ) |
| Contrast Ratio (Typical) | 500:1 (Typ) |
| Response Time (Tr+Tf, Typ) | 25 ms (Typ), 35 ms (Max) |
| Interface | LVDS (Single Channel, 4 Data Pairs + 1 Clock Pair) |
| Backlight | White LED, Edge-lighting type with 27 LEDs |
| Touch Panel | Capacitive (Integrated CTP via I2C) |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +70°C |
3.2 Interface & Electrical Specifications
3.2.1 Pin Description (40-Pin Connector)
The module uses a 40-pin connector. The interface is LVDS and the pinout includes power, differential data and clock pairs. Note the additional pins for the CTP on a separate 6-pin connector.
| Pin No. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | VCOM | P | Common Voltage |
| 2, 3 | VDD | P | Power Voltage for digital circuit (3.3V Typ) |
| 4 | NC | - | No Connection |
| 5 | RESET | I | Global Reset Pin (Active Low). Suggest RC circuit for stability. |
| 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 |
| 26, 27 | NC | - | No Connection |
| 28 | SELB | I | 6-bit/8-bit Mode Select (High=6bit, Low=8bit) |
| 29 | AVDD | P | Power for Analog Circuit (9.6V Typ) |
| 31, 32 | LED- | P | LED Cathode |
| 33 | L/R | I | Horizontal inversion control |
| 34 | U/D | I | Vertical inversion control |
| 35 | VGL | P | Gate OFF Voltage (-8.0V Typ) |
| 36, 37 | NC | - | No Connection |
| 38 | VGH | P | Gate ON Voltage (21.0V Typ) |
| 39, 40 | LED+ | P | LED Anode |
Note 1: If LVDS input data is 6 bits, SELB must set to High; If LVDS input data is 8 bits, SELB must set to Low.
Note 2: L/R and U/D pins control the display scan direction. For example, L/R=0 sets right to left scan.
3.2.2 Electrical Specifications (Typical Values)
| 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 |
Note: VGH-VGL must be <= 40V.
3.2.3 Touch Panel I2C Interface (From 6-Pin CTP Connector)
The touch controller uses a dedicated 6-pin I2C interface. Key signals include:
- VDD (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 Optical Characteristics (Typical Values)
| Item | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Brightness | B | Viewing normal angle | -- | 500 | -- | Cd/m² |
| Contrast Ratio | CR | Viewing normal angle | 400 | 500 | -- | -- |
| Response Time (Tr) | Tr | Viewing normal angle | -- | 5 | 7 | msec |
| Response Time (Tf) | Tf | Viewing normal angle | -- | 20 | 28 | msec |
| Viewing Angle (Hor.) | LEFT / RIGHT | Center CR>=10 | -- | 85 | -- | Deg. |
| Viewing Angle (Ver.) | UP / DOWN | Center CR>=10 | -- | 85 | -- | Deg. |
| Uniformity | Un | -- | -- | 80 | -- | % |
3.4 Reliability & Warranty
The module has undergone standard reliability tests for temperature, humidity, shock, vibration, and ESD. The warranty period is 12 months from the date of shipping under normal using and storage conditions.
| Item | Specification |
| Shock (Non-Operation) | 980m/s² (100G), 1/2 Sine wave, 6msec, ±X, ±Y, ±Z, each axis 1 time |
| Vibration (Non-Operation) | 8~33.3Hz (Stoke: 1.3mm), 33.3Hz -400Hz (Sweep: 2.9G, Cycle: 15 min), perpendicular axis |
| ESD | 150pF, 330Ω, ±8kV&±15kV Air & Contact test |
4. Application Guidelines & Critical Notes
When integrating the LSC101I26-L-V1 module, engineers must adhere to the specific guidelines outlined in the specification to ensure optimal performance and reliability.
- Power Supply (VDD & AVDD): The module requires separate power supplies for its digital (VDD = 3.3V on Pins 2, 3) and analog (AVDD = 9.6V on Pin 29) circuits. The specification also lists high voltages for gate driving (VGH=21V, VGL=-8V), which are typically generated by an internal DC-DC converter but must be kept within the rated limits.
- 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 (T2 > 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 Data Format (SELB): The module supports both 6-bit and 8-bit LVDS input data, selectable via the SELB pin (Pin 28). Set SELB to High for 6-bit data and Low for 8-bit data.
- Scan Direction Control (L/R, U/D): The module allows for software or hardware control of the display scanning direction. This is useful for mounting the display in different orientations.
- Backlight Driver: The backlight has 27 LEDs (as per the block diagram). An external LED driver is required to provide a constant current. The specification does not detail the current and voltage of the backlight string from this particular snippet, but the pinout indicates anode (LED+) and cathode (LED-) connections.
- Capacitive Touch Panel (CTP): The integrated touch controller communicates via a dedicated I2C interface. Proper I2C pull-up resistors (typically 4.7kΩ) are required on the SCL and SDA lines. The touch interface has its own 6-pin connector.
- Optical Performance: The module's brightness is rated at a typical 500 cd/m², which is quite high. The contrast ratio is a typical 500:1. The viewing angle is rated as "Free," but the optical tables show 85 degrees in all four directions (at CR>=10), which is typical for TN panels.
- Power On/Off Sequence: The specification details a specific power-on and power-off timing sequence (Power on/off timing chart) to prevent damage to the IC. The rising time of VDD (TPOR) must be within the specified range.
5. Conclusion & Design-In Support
The LSC101I26-L-V1 from Lesson Smart Display Technology is a high-brightness, 10.1-inch WSVGA display module. Its high 500 cd/m² luminance, TN technology, and integrated capacitive touch panel (via I2C) make it a practical and cost-effective solution for a wide variety of industrial and embedded HMI applications, especially those in well-lit environments.
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, the power sequencing diagram, and the mechanical outline drawing.
- Design the power supply to generate the required voltages (VDD 3.3V, AVDD 9.6V) and ensure the backlight driver can handle the LED array requirements.
- Utilize the mechanical drawing to create an accurate enclosure design, paying attention to the active area, viewing area, and FPC mounting details for both the main and CTP connectors.
- Contact the manufacturer for evaluation kits, sample requests, and technical support during the design-in phase, especially for guidance on the LVDS configuration and touch controller initialization.
This module is engineered to provide consistent and reliable performance for a wide range of commercial and industrial applications.
