LSC101I23-L-V2 | 10.1 inch TFT-LCD | 1280x800 (WXGA) | LVDS | With CTP
1. Executive Summary & Product Positioning
The LSC101I23-L-V2 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 active switching devices and is composed of an LCD panel, Driver IC, FPC (Flexible Printed Circuit), Backlight (B/L), and Capacitive Touch Panel (CTP). The module has a 10.1-inch diagonally measured active area with WXGA resolutions (1280 horizontal by 800 vertical pixel array). Each pixel is divided into RED, GREEN, BLUE dots which are arranged in vertical stripe and this module can display 16.7M colors.
Product Positioning: Designed for industrial and commercial applications that require a high-quality, reliable display with integrated touch functionality. The module features a high typical brightness of 350 cd/m² and a high contrast ratio of 1000:1. It utilizes a standard LVDS (Low-Voltage Differential Signaling) interface for easy integration with a variety of host processors. The module is well-suited for industrial HMI panels, medical equipment, and other embedded display systems.
2. Detailed Product Overview & Architecture
The module's architecture is designed for straightforward integration and reliable operation. The primary components include:
- TFT-LCD Panel: 10.1-inch diagonal, a-Si TFT active matrix, transmissive display mode. The active area is 219.96 mm (H) × 135.6 mm (V). The pixel arrangement is RGB vertical stripe.
- Driver IC & TCON: The module integrates a timing controller (TCON) to support the LVDS interface.
- Backlight Unit (B/L): A white LED backlight unit. The typical brightness is 350 cd/m².
- Touch Panel (CTP): The module includes a capacitive touch panel (CTP) with a dedicated I2C interface (CTP-SCL, CTP-SDA, CTP-WAKE, CTP-INT). The touch controller is a GT9271, and the cover lens is Panda Glass (熊猫玻璃).
- Mechanical Construction: COG (Chip-on-Glass) + FPC + B/L + CTP. The module outline dimensions are 249.8 mm (W) × 157.0 mm (H) × 4.65 mm (D).
- Interface: The module communicates via a 40-pin FPC connector. The main display interface is LVDS. The power supply is 3.3V DC, and all signal IO levels are 1.8V.
3. Exhaustive Technical Specifications
3.1 General & Mechanical Specifications
| Item | Specification |
| Display Size (Diagonal) | 10.1 inches |
| Resolution (Dots) | 1280(RGB) × 800 (WXGA) |
| Display Technology | a-Si TFT, Transmissive, Normally Black |
| Module Construction | COG+FPC+B/L+CTP |
| Color Depth | 16.7M colors |
| Display Format | RGB Vertical Stripe |
| Viewing Angle (CR>10) | 80°/80°/80°/80° (L/R/U/D, Typ) |
| Luminance (Brightness, Typ) | 350 cd/m² |
| Contrast Ratio (Typical) | 1000:1 (Typ) |
| Response Time (Tr+Tf) | 35ms (Typ), 40ms (Max) |
| Transmittance | 6% (Typ), 5.1% (Min) |
| Active Area (H×V) | 219.96 mm × 135.6 mm |
| Outline Dimensions (H×V×D) | 249.8 mm × 157.0 mm × 4.65 mm |
| Interface | LVDS |
| Backlight | White LED, If = 260mA, Vf = 9-9.6V |
| Touch Controller IC | GT9271 |
| Cover Lens | Panda Glass (熊猫玻璃) |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
3.2 Interface & Electrical Specifications
3.2.1 Electrical Characteristics (From Specification Section 6)
| Parameter | Symbol | Min | Typ | Max | Unit | Note |
|---|---|---|---|---|---|---|
| Power Supply Voltage | VDD | 3.0 | 3.3 | 3.6 | V | -- |
| Power Supply Ripple | VRP | -- | -- | 300 | mV | -- |
| Power Supply Current | IDD | -- | 182 | 243 | mA | Note 1 |
| Power Consumption | PLCD | -- | 0.6 | 0.8 | W | Note 1 |
| Rush Current | IRUSH | -- | -- | 3.0 | A | Note 2 |
| Input High Voltage (CMOS) | VIH | 2.7 | -- | 3.3 | V | -- |
| Input Low Voltage (CMOS) | VIL | 0 | -- | 0.5 | V | -- |
Note 1: The current draw and power consumption is for VDD=3.3V, Frame rate fv=60Hz, Clock frequency=72.4MHz.
Note 2: The duration of rush current is about 2ms and rising time of Power Input is 1ms(min).
3.2.2 Key Pin Description (From 40-Pin Connector - Specification Section 7-2)
The module uses a 40-pin connector (Hirose FH33J-40S-0.5SH(10)). Key pins are described below. Note that all signal I/O levels are 1.8V.
| Pin No. | Symbol | Function |
|---|---|---|
| 1, 4-6, 23-24, 28-29 | NC | No Connection |
| 2-3 | VDD | Power Supply (3.3V Typ) |
| 7, 10, 22, 25, 30 | GND | Ground |
| 8-9, 11-12, 14-15, 17-18, 20-21 | RIN0-/+, RIN1-/+, RIN2-/+, RIN3-/+, CLKIN-/+ | LVDS Differential Data and Clock Inputs (4 Pairs + 1 Clock Pair) |
| 26-27 | SCL_S, SDA_S | I2C Interface (for Touch Panel, 1.8V Level) |
| 31-40 | -- | Backlight Power (LED Anode/Cathode) and additional GND/NC |
3.2.3 Backlight Characteristics (From Specification Section 8 Note 4)
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Forward Current | If | -- | 260 | -- | mA |
| Forward Voltage | Vf | 9 | -- | 9.6 | V |
3.3 Optical Specifications (From Specification Section 8)
Optical characteristics are measured at the center of the active area (θx = θy = 0) unless otherwise noted.
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Response Time | Tr + Tf | θx = θy = 0 | -- | 35 | 40 | ms |
| Contrast Ratio | CR | θx = θy = 0 | -- | 1000 | -- | -- |
| Transmittance | T% | θx = θy = 0 | 5.1 | 6 | -- | % |
| Viewing Angle (Top) | θT | CR > 10 | -- | 80 | -- | Deg. |
| Viewing Angle (Bottom) | θB | CR > 10 | -- | 80 | -- | Deg. |
| Viewing Angle (Left) | θL | CR > 10 | -- | 80 | -- | Deg. |
| Viewing Angle (Right) | θR | CR > 10 | -- | 80 | -- | Deg. |
| Luminance | L | I_F = 260mA | -- | 350 | -- | cd/m² |
3.4 Touch Panel Characteristics (From Outline Drawing)
- Touch Controller: GT9271 (Goodix).
- CTP Interface: I2C (CTP-SDA, CTP-SCL, CTP-INT, CTP-WAKE) at 1.8V logic level.
- Power Supply: VCC (3.3V).
- Cover Lens: Panda Glass (熊猫玻璃) with 7H surface hardness.
- Light Transmittance: >86%.
- Sensor ID: S OPT1 = NC, S OPT2 = GND.
- Mechanical Structure: G+G (Glass+Glass) with OCA bonding.
3.5 Additional Notes from Outline Drawing
- ESD Protection: Steel sheet reinforcement with conductive fabric (双面带胶导电布) for grounding.
- Regulatory Compliance: RoHS standard.
- Temperature Requirements: All materials must withstand -40°C to +80°C.
- Power On/Off Sequence: The specification provides a detailed power sequence diagram with specific timing parameters (T1 to T7) for proper operation.
4. Application Guidelines & Critical Notes
When integrating the LSC101I23-L-V2 module, engineers must adhere to the specific guidelines outlined in the specification to ensure optimal performance and reliability.
- Power Supply (VDD): The module requires a stable 3.3V supply (VDD) on pins 2 and 3. The typical current consumption is 182mA. The power supply ripple must be kept below 300mV. Note the specified rush current of up to 3.0A, which may require a soft-start or inrush current limiting in the power supply design.
- IO Level: All signal I/O levels are 1.8V. This includes the LVDS interface, I2C for touch, and other control signals. Level shifting may be required if the host processor operates at a different voltage.
- Backlight Driver: The backlight requires a constant current driver set to 260mA, with a forward voltage of 9V to 9.6V. This is a critical specification for achieving the typical 350 cd/m² brightness.
- LVDS Interface: The module uses a standard LVDS interface with 4 differential data pairs and a clock pair. The host board must be designed to drive the differential pairs correctly with controlled 100-ohm differential impedance.
- I2C Interface for Touch: Pins 26 and 27 (SCL_S, SDA_S) and the additional CTP pins (CTP-WAKE on Pin 6, CTP-INT on Pin 5) are used for the capacitive touch panel (GT9271) at 1.8V logic level. These lines require pull-up resistors (typically 4.7kΩ to 1.8V).
- Mechanical Integration: The specification provides a detailed mechanical drawing. The module has an outline size of 249.8 mm x 157.0 mm x 4.65 mm. The active area is 219.96 mm x 135.6 mm. The drawing includes notes on mounting, including a 0.2mm tolerance for key dimensions and a steel sheet reinforcement for ESD grounding.
- Optical Performance: The module features wide viewing angles (80/80/80/80), indicating IPS-like display technology. The luminance of 350 cd/m² is achieved at the specified backlight current.
5. Conclusion & Design-In Support
The LSC101I23-L-V2 from Lesson Smart Display Technology is a well-specified 10.1-inch TFT-LCD module that offers a balanced combination of performance, reliability, and integrated touch functionality. Its WXGA resolution, LVDS interface, 1.8V IO levels, and GT9271 touch controller make it a practical choice for a wide range of industrial and embedded display applications.
For design-in support, it is strongly recommended to:
- Obtain and review the full Product Specification (Revision 1.0) for the complete 40-pin connector mapping, detailed LVDS timing diagrams, and the complete mechanical outline drawing.
- Design the power supply to provide a clean 3.3V rail (VDD) and a constant current backlight driver (260mA). Ensure a 1.8V rail is available for the touch and IO interfaces if needed.
- Use the mechanical drawing to create an accurate footprint for the module and ensure the enclosure accommodates the outline dimensions and FPC routing.
- Contact the manufacturer for evaluation kits, sample requests, and technical support during the design-in phase.
This module is engineered to deliver consistent, high-quality display performance for a variety of commercial and industrial environments.
