LS101I05-R-V1: 10.1-Inch WSVGA TFT LCD Module, 1024×600 Resolution, RGB Interface, 16.7M Colors
Product Subtitle / Keywords
10.1 Inch Display, 1024(RGB)*600 WSVGA Resolution, Transmissive Type a-Si TFT-LCD Module, COG+FPC+B/L Module Type, 16.7M Display Colors, 50-Pin RGB Interface, Supply Voltage DVDD=3.3V (Typ), Backlight Circuit 3 Series 11 Parallel (3S11P) White LED, Backlight Voltage Vf=9.6V (Typ), Backlight Current Ir=220mA, Operating Temperature -20°C to +70°C, Storage Temperature -30°C to +80°C, Luminance Average 700 cd/m² (Typ at If=220mA), Lesson Smart Display Technology Co., Ltd.
1. Executive Summary & Product Positioning
The LS101I05-R-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module, which is composed of a TFT-LCD panel, a driver circuit and a backlight unit.
This product specification (Revision 1.0) serves as the definitive technical document, defining the module's general description (including a 10.1-inch diagonal display with WSVGA resolution of 1024(RGB)*600), physical features (mechanical specification), outline dimension drawing, absolute maximum ratings (power supply voltages and temperature ranges), electrical characteristics (power supply, pin description, timing characteristics), and backlight characteristics.
The document provides the core parameters necessary for system integration into standard 10.1-inch industrial, commercial, and embedded display applications. The unequivocal recommendation for engineers is to strictly adhere to the electrical specifications (especially the power supply voltage DVDD=3.3V, the backlight driving at 220mA, and the timing characteristics for DE/HV mode) described herein to ensure reliable performance and compatibility.
2. Detailed Product Overview & Architecture
- Core Technology: Transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module, which is composed of a TFT-LCD panel, a driver circuit and a backlight unit.
- Display Resolution: WSVGA: 1024(RGB) * 600 pixel array.
- Display Colors: This panel can display up to 16.7M colors.
- Module Construction: COG+FPC+B/L (Chip-On-Glass + Flexible Printed Circuit + Backlight).
- Interface Type: RGB Interface (TTL level), with 50 pins. It supports DE (Data Enable) mode and HV (HSYNC/VSYNC) mode selectable via the MODE pin.
- Backlight: White LED backlight configured as 3串11并 (3S11P) (3 Series, 11 Parallel = 33 LEDs), with a total forward voltage of 9.6V (Typ) and a total forward current of 220mA (Typ).
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Item | Specification | Unit |
|---|---|---|
| Module Model | LS101I05-R-V1 | - |
| LCD Size (Diagonal) | 10.1 | inch |
| Number of dots | 1024(RGB) × 600 | pixel |
| Module size (H×V×D) | 235 × 143 × 5.2 | mm |
| Active area (H×V) | 222.72 × 125.28 | mm |
| Display Colors | 16.7M | - |
| 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) | - |
| Document Revision | Revision 1.0 | - |
3.2 Electrical & Interface Specifications
3.2.1 Absolute Maximum Ratings
| Item | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|
| Digital Supply Voltage | DVDD | -0.3 | 3.6 | V |
| Analog Supply Voltage | AVDD | 0 | 13.5 | V |
| TFT Gate ON Voltage | VGH | -0.3 | 20 | V |
| TFT Gate OFF Voltage | VGL | -20 | 0.3 | V |
| Operating Temperature | TOP | -20 | 70 | °C |
| Storage Temperature | TST | -30 | 80 | °C |
3.2.2 Electrical Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply voltage (DVDD) | DVDD | 3.0 | 3.3 | 3.6 | V |
| Input Voltage (L level) | VIL | 0 | --- | 0.3*IOVCC | V |
| Input Voltage (H level) | VIH | 0.7*IOVCC | --- | IOVCC | V |
3.2.3 Backlight Unit Characteristics
| Item | Symbol | Min | Typ | Max | Unit | Note |
|---|---|---|---|---|---|---|
| Supply voltage | - | 9.0 | 9.6 | 11.0 | V | 1 |
| Supply current | Ir | - | 220 | - | mA | 2 |
| Luminance | - | - | 700 | - | cd/m² | Spec for Backlight |
Note: The backlight circuit is configured as 3S11P (3 Series, 11 Parallel). The outline drawing indicates a SPECIFICATION FOR BACKLIGHT with LV (Avg) = 700 cd/m². A constant current drive is required (If=220mA) to maintain the specified luminance and uniformity.
3.2.4 Pin Description (50-Pin Connector)
The module uses a 50-pin connector for the RGB interface and power supply. Key signals from the pin description table include:
| Pin NO. | SYMBOL | I/O | DESCRIPTION |
|---|---|---|---|
| 1, 2 | VLED+ | - | Power for LED backlight (Anode) |
| 3, 4 | VLED- | - | Power for LED backlight (Cathode) |
| 5 | GND | P | Power ground |
| 6 | VCOM | I | Common Voltage |
| 7 | DVDD | P | Digital Power |
| 8 | MODE | I | DE/SYNC mode select. (Note 1) |
| 9 | DE | I | Data Enable signal |
| 10 | VSYNC | I | Vertical sync input |
| 11 | HSYNC | I | Horizontal sync input |
| 12-19 | B7-B0 | I | Blue data (MSB to LSB) (Note 2) |
| 20-27 | G7-G0 | I | Green data (MSB to LSB) (Note 2) |
| 28-35 | R7-R0 | I | Red data (MSB to LSB) (Note 2) |
| 36 | GND | P | Power ground |
| 37 | DCLK | I | Clock input (Note 3) |
| 38 | GND | P | Power ground |
| 39 | SHLR | I | Left / Right Selection (Note 4,5) |
| 40 | UPDN | I | Up / Down Selection (Note 4,5) |
| 41 | VGH | P | Gate ON Voltage |
| 42 | VGL | P | Gate OFF Voltage |
| 43 | AVDD | P | Power for Analog Circuit |
| 44 | RESET | I | Global reset pin (Note 6) |
| 47 | DITH | I | Dithering function enable control (Note 7) |
| 48-50 | GND / NC | P / - | Power ground / No Connection |
Note 1 (MODE): DE / SYNC mode select under TTL mode. Normally pull high. H: DE mode. L: HSD/VSD mode.
Note 2 (B0, G0, R0): When input 18 bits RGB data, the two low bits of R,G and B data must be grounded.
Note 3 (DCLK): Data shall be latched at the falling edge of DCLK.
Note 4, 5 (SHLR, UPDN): Selection of scanning mode and definition of scanning direction (Left/Right and Up/Down).
Note 6 (RESET): Active Low to enter Reset State. It's necessary to connect an RC delay circuit for stability (VDD large than 1ms).
Note 7 (DITH): DITHER = \"1\", Enable internal dithering function. DITHER = \"0\", Disable internal dithering function.
3.3 Timing Characteristics
The specification provides Vertical Input Timing parameters for both DE mode and HV mode.
Vertical Input Timing (DE Mode and HV Mode)
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Vertical display area | tvd | 600 | 600 | 600 | H |
| VSYNC period time | tv | 624 | 635 | 750 | H |
| VSYNC pulse width | tvpw | 1 | - | 20 | H |
| VSYNC back porch | tvb | 23 | 23 | 23 | H |
| VSYNC front porch | tvfp | 1 | 12 | 127 | H |
Note: The parameter is slightly changed by temperature, driving voltage and material.
3.4 Electro-Optical Characteristics (Backlight)
The specification includes a Backlight section in the outline drawing with the following key optical parameter:
| Item | Symbol | Condition | Typ | Unit |
|---|---|---|---|---|
| Average Luminance | LV (Avg) | If=220mA (Constant Current) | 700 | cd/m² |
| Luminance Uniformity | Unif | If=220mA, 9 Points | 75% (Min) | % |
Note: The data are measured after LEDs are turned on for 5 minutes. LCM displays full white. The brightness is the average value of 9 measured spots (Φ8mm). Measurement equipment: PR-705.
4. Application Guidelines & Critical Notes
Intended Use
- Standard 10.1-inch industrial, commercial, and embedded display applications.
- Systems requiring a WSVGA (1024×600) resolution display with a standard TTL RGB interface.
- Applications needing a moderate brightness display (700 cd/m² Typ) with a wide operating temperature range (-20°C to +70°C).
Critical Design Considerations
- TTL RGB Interface (DE/HV Mode): The module uses a standard 24-bit RGB parallel interface. The host must provide the correct timing for either DE mode (MODE pin high) or HV mode (MODE pin low). Data is latched on the falling edge of DCLK.
- Power Supplies (Multiple Rails): The module requires several power supply voltages:
- DVDD (3.3V Typ, 3.0V-3.6V): Digital power supply for the logic blocks.
- AVDD (0V to 13.5V Max): Analog power supply for the source driver.
- VGH ( up to 20V Max): Gate ON voltage.
- VGL (as low as -20V Max): Gate OFF voltage.
- VCOM: Common voltage.
- Backlight (Constant Current Drive Required): The backlight uses a 3S11P LED configuration and requires a constant current drive of 220mA (Typ). The total forward voltage is 9.6V (Typ), ranging from 9.0V to 11.0V. A constant current boost converter should be used to drive the backlight from a lower system voltage.
- Dithering Function (DITH Pin): The DITH pin (Pin 47) controls the internal dithering function. Setting DITHER high (\"1\") enables dithering for improved color depth, while setting it low (\"0\") disables it. This can be used to fine-tune image quality.
- Scanning Direction Control (SHLR, UPDN): Pins 39 and 40 control the scanning direction of the display (Left/Right and Up/Down). This can be used to support different panel orientations or mounting configurations.
- Reset Circuit (RESET Pin): The RESET pin (Pin 44) requires a proper RC delay circuit for stable startup. The VDD must be stable (VDD large than 1ms) before releasing reset.
- Operating Temperature Range (-20°C to +70°C): The module supports a wide operating temperature range, suitable for industrial applications.
- High Brightness (700 cd/m²): The module offers good brightness for indoor environments. When driving at 220mA, ensure proper thermal management.
- Robust Mechanical Design: The module dimensions are 235 × 143 × 5.2 mm. Ensure the mechanical design accommodates these dimensions and the FPC routing.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass – handle with care. Avoid mechanical stress on the active area.
- Do not attempt to disassemble or modify the LCD module.
- All NC (No Connection) pins should be left open.
5. Conclusion & Design-In Support
The LS101I05-R-V1 specification details a 10.1-inch WSVGA (1024×600) TFT LCD module with a standard TTL RGB interface, offering a good balance of performance, cost, and features for industrial applications — a solid choice for many embedded display systems.
Key Strengths
- WSVGA Resolution (1024×600): A standard resolution suitable for many HMI, industrial, and embedded applications.
- Standard TTL RGB Interface: Easy to interface with most microcontrollers and FPGAs without the need for a high-speed serial interface.
- Good Brightness (700 cd/m² Typ): Adequate for bright indoor environments.
- Wide Operating Temperature Range (-20°C to +70°C): Suitable for industrial environments.
- Detailed Timing and Pinout: The specification provides comprehensive timing parameters (DE/HV mode) and a clear 50-pin pinout, simplifying system integration.
Main Design Focus
- The critical design tasks are designing a multi-rail power supply (DVDD 3.3V, AVDD up to 13.5V, VGH up to 20V, VGL down to -20V), implementing a constant-current backlight driver for the 3S11P LED configuration (220mA, 9.6V), and configuring the host for a standard 24-bit RGB TTL interface with the correct timing parameters (DE or HV mode).
- Supporting requirements: Provide proper reset circuitry with RC delay. Design a secure mechanical housing to protect the module during operation. Ensure the host can handle the power supply sequencing.
This module is a reliable and well-documented choice for engineers designing standard 10.1-inch display systems with a classic TTL RGB interface and good optical performance.
