LS101I17-R-V1: 10.1-Inch TFT LCD Module, WSVGA Resolution (1024×600), TN Technology, Normally White, Parallel RGB Interface, High Brightness 500 cd/m²
Product Subtitle / Keywords
10.1 Inch Display, WSVGA 1024(RGB)×600 Resolution, Transmissive a-Si TFT-LCD Module, Normally White TN Mode, Parallel 24-bit RGB Interface, COG+FPC+B/L, Display Colors 16.7M, High Brightness Typ. 500 cd/m², Contrast Typ. 1000:1, Supply Voltage DVDD=3.3V, AVDD=10.85V, VGH=21V, VGL=-5.5V, Backlight 27 White LEDs, IF=180mA, VF=9V, Operating Temp -20°C~+70°C, Storage Temp -30°C~+80°C, Panel Brand BOE, Lesson Smart Display Technology Co., Ltd
1. Executive Summary & Product Positioning
The LS101I17-R-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智慧科技有限公司), is a 10.1-inch color active matrix thin film transistor (TFT) TN (Twisted Nematic) liquid crystal display (LCD) module, which uses amorphous silicon TFT as a switching device. It is composed of a TFT LCD panel (noted as BOE brand panel), Driver IC, FPC and Backlight.
This product specification (defined in the Approval Sheet as "LS101I17-R-V1") serves as the definitive technical document, providing a general description (WSVGA: 1024 vertical by 600 horizontal pixel array), features, absolute maximum ratings, DC electrical characteristics (operating conditions and current consumption), power on/off sequence, backlight specifications, input signal timing (DE mode & HV mode), AC electrical characteristics, and ESD test conditions.
The document provides the core parameters necessary for system integration into standard 10.1-inch industrial and commercial display applications. The unequivocal recommendation for engineers is to strictly adhere to the electrical specifications (especially the power sequence and timing parameters), backlight drive conditions, and mechanical tolerances described herein to ensure reliable performance and compatibility.
2. Detailed Product Overview & Architecture
- Core Technology: Color active matrix thin film transistor (TFT) TN liquid crystal display (LCD) module, which uses amorphous silicon TFT as a switching device.
- Display Mode: Transmissive type, Normally White TN (Twisted Nematic).
- Display Format: Graphic 800(RGB) * 1280 Dot-matrix (Note: The detail section 1.1 states WSVGA resolution with 1024 vertical by 600 horizontal pixel array. The approval sheet header shows 800(RGB)*1280 Dot-matrix. The detailed spec section 5.3 confirms the timing parameters for 1024x600 WSVGA. The primary resolution per the detailed spec is 1024x600).
- Module Construction: COG+FPC+B/L (Chip-On-Glass + Flexible Printed Circuit + Backlight).
- Interface Type: Parallel 24-bit RGB Interface (Supporting both DE mode and HV mode).
- Display Colors: Capable of displaying 16.7M colors (implied by 24-bit interface).
- Backlight: 27 White LEDs (9x3 configuration), providing high brightness (Typ. 500 cd/m² per note).
- Panel Source: The used panel is from BOE.
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Module Model | LS101I17-R-V1 | - |
| LCD Size (Diagonal) | 10.1 | inch |
| Resolution (Primary per spec) | 1024(RGB) × 600 (WSVGA) | Pixels |
| Display Type | Transmissive a-Si TFT LCD (TN, Normally White) | - |
| Module Type | COG+FPC+B/L | - |
| Interface Type | Parallel 24-bit RGB (TTL), DE & HV Support | - |
| Display Colors | 16.7M (24-bit) | - |
| Display Mode | TN TFT (Normally White) | - |
| Backlight Type | White LED (27 LEDs in 9x3 parallel configuration) | - |
| Panel Brand | BOE | - |
| Supplier | 立信(万安)智慧科技有限公司 (Lesson Smart Reply Technology Co.,Ltd) | - |
3.2 Electrical & Interface Specifications
3.2.1 Absolute Maximum Ratings
| Item | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|
| Digital Supply Voltage | DVDD | -0.3 | 5 | V |
| TFT Gate On Voltage | VGH | -0.3 | 40 | V |
| TFT Gate Off Voltage | VGL | -20 | 0.3 | V |
| Analog Power Supply Voltage | AVDD | -0.5 | 15 | V |
3.2.2 Operating Conditions (TFT LCD Module)
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| TFT Gate On Voltage | VGH | 20 | 21 | 22 | V |
| TFT Gate Off Voltage | VGL | -7 | -8 | -9 | V |
| Common Electrode Voltage | VCOM | 3.5 | 4.0 | 4.5 | V |
| Analog Supply Voltage | AVDD | 10.65 | 10.85 | 11.05 | V |
3.2.3 Current Consumption
| Item | Symbol | Condition | Typ. | Unit |
|---|---|---|---|---|
| Gate On Current | IVGH | VGH =21V | 5.6 | mA |
| Gate Off Current | IVGL | VGL= -5.5V | 8.1 | mA |
| Digital Current | IDVDD | DVDD = 3.3V | 12.2 | mA |
| Analog Current | IAVDD | AVDD = 10.85V | 29.7 | mA |
3.2.4 Input Signal Timing
AC Electrical Characteristics (TTL Mode)
| Parameter | Symbol | Min. | Unit |
|---|---|---|---|
| HSD hold time | Thhd | 5 | ns |
| Data set-up time | Tdsu | 5 | ns |
| Data hold time | Tdhd | 5 | ns |
| DE setup time | Tesu | 5 | ns |
| DE hold time | Tehd | 5 | ns |
| Output stable time | Tsst | - | 2.5us (Note: spec says Max. 6 us) |
DE Mode Timing (1920x720 typical parameters)
| 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 |
HV Mode Timing (1920x720 typical parameters)
| Horizontal Timing | ||||||
|---|---|---|---|---|---|---|
| Parameter | Symbol | Min. | Typ. | Max. | Unit | |
| DCLK Frequency | fclk | 44.9 | 51.2 | 63 | MHz | |
| Horizontal Display Area | thd | 1024 | 1024 | 1024 | DCLK | |
| HSD Period | th | 1200 | 1344 | 1400 | DCLK | |
| HSD Pulse Width | thpw | 1 | - | 140 | DCLK | |
| HSD Back Porch | thbp | 160 | 160 | 160 | DCLK | |
| HSD Front Porch | thfp | 16 | 160 | 216 | DCLK | |
| Vertical Timing | ||||||
| Parameter | Symbol | Min. | Typ. | Max. | Unit | |
| Vertical Display Area | tvd | 600 | 600 | 600 | TH | |
| VSD Period | tv | 624 | 635 | 750 | TH | |
| VSD Pulse Width | tvpw | 1 | - | 20 | TH | |
| VSD Back Porch | tvbp | 23 | 23 | 23 | TH | |
| VSD Front Porch | tvfp | 1 | 12 | 127 | TH | |
3.2.5 Power On/Off Sequence
To prevent device damage from latch up, the following sequence must be followed:
- Power On: VDD, GND → AVDD, AGND → V1 to V14
- Power Off: V1 to V14 → AVDD, AGND → VDD, GND
The document also includes a detailed timing diagram and table for the power sequence, specifying timings for VDD, AVDD, STBYB, DCLK, HSD, VSD, DE, VGH, VGL, and source output.
3.3 Backlight Specifications
| Parameter | Condition | Typ. | Unit |
|---|---|---|---|
| LED Current (ILED) | 27 LEDs | 180 | mA |
| Forward Voltage (VF) | IF=180mA, 27 LEDs | 9 (Typ) | V |
| Power Dissipation (Pd) | 27 LEDs | 1890 | mW |
| Peak Forward Current (IFP) | 1 LED | 100 | mA |
| Reverse Voltage (VR) | 1 LED | 10 | V |
3.4 ESD Ratings
| Test Item | Conditions | Value |
|---|---|---|
| Contact Discharge (Non-operation) | 150pF, 330Ω | ±4 KV |
| Air Discharge (Non-operation) | 150pF, 330Ω | ±8 KV |
| Contact Test (Non-operation) | 200pF, 0Ω | ±200 V |
4. Application Guidelines & Critical Notes
Intended Use
- Standard 10.1-inch industrial, commercial, and consumer display applications.
- Applications requiring a WSVGA (1024x600) resolution display with a parallel RGB interface.
- Systems that need a high-brightness (500 cd/m² typ.) and high-contrast (1000:1 typ.) TFT panel.
- Products where a Normally White TN panel is suitable for the design.
Critical Design Considerations
- Parallel RGB Interface (TTL): The module uses a Parallel 24-bit RGB interface (TTL levels). This requires a significant number of I/O pins on the host controller (28 data lines for RGB888, plus clocks and syncs). The number of pins is a primary consideration for PCB routing and MCU selection.
- Resolution Confirmation (1024×600): While the approval sheet header mentions "800(RGB)*1280", the detailed technical content (Section 1.1 and all timing tables) clearly specifies a WSVGA resolution of 1024 vertical by 600 horizontal pixel array. The host graphics controller must be configured for the WSVGA resolution.
- DE and HV Mode Support: The module supports both DE (Data Enable) and HV (Horizontal/Vertical sync) modes. The timing tables for both modes are provided. For DE mode, the blanking is automatically determined; for HV mode, precise pulse widths, back porches, and front porches must be set.
- Multiple Power Rails: The module requires multiple power supplies: DVDD (3.3V), AVDD (10.85V), VGH (21V), and VGL (-5.5V). All generated through an external PMIC or DC-DC converter. The absolute maximum ratings and operating conditions define the voltage tolerances.
- Critical Power Sequencing: Strictly adhere to the power on/off sequence (VDD → AVDD → Gamma Voltages) to prevent latch-up and potential damage to the driver IC.
- High Backlight Current: The backlight requires a constant current of 180mA at a forward voltage of 9V (Typ). Use a dedicated LED driver IC to provide a stable, efficient current source.
- BOE Panel: The specification notes that the "USED PANNEL: BOE". This ensures a specific level of quality and performance from a leading panel manufacturer.
- Display Type (TN): TN (Twisted Nematic) technology offers fast response times but has a more limited viewing angle compared to IPS. The viewing direction should be considered during the design phase.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly. The specification provides specific ESD test values.
- The module contains fragile glass and an FPC – handle with care.
- Do not attempt to disassemble or modify the LCD module.
- All NC (No Connection) pins should be left open to avoid interference.
5. Conclusion & Design-In Support
The LS101I17-R-V1 specification details a standard 10.1-inch WSVGA TFT display module with a parallel RGB interface, high brightness (500 cd/m²), high contrast (1000:1), and a reliable BOE panel, making it an excellent choice for many industrial and commercial display applications.
Key Strengths
- High Brightness (500 cd/m²): Excellent for well-lit environments.
- High Contrast (1000:1): Sharp and vivid image quality.
- Standard 10.1-inch Size: Widely used and supported form factor.
- BOE Panel: Proven quality and reliability from a top-tier panel maker.
- Documented Power Sequencing & Timing: Clear specifications to enable correct hardware and software design.
Main Design Focus
- The critical design tasks are managing the high pin count of the 24-bit parallel RGB interface and correctly implementing the multi-rail power supply with the precise on/off sequence.
- Supporting requirements: Provide DVDD (3.3V), AVDD (~10.85V), VGH (~21V), VGL (~-8V), and a 180mA LED driver for the backlight.
This module is a strong choice for engineers looking for a proven, high-performance, 10.1-inch display from a reliable supply chain.
