LS070I09-R-V1: 7.0-Inch a-Si TFT LCD Module, 1024×600 Resolution, 16.7M Colors, 24-bit Parallel RGB Interface
Product Subtitle / Keywords
7.0 Inch Display, 1024(RGB)×600 Resolution, Transmissive a-Si TFT-LCD, 24-bit Parallel RGB Interface (DE/SYNC Mode), COG+FPC+B/L, 16.7M Colors, 49-Pin, 164.86mm × 99.96mm × 3.5mm Module Size, 153.84mm × 85.63mm Active Area, -20°C~70°C Operating Temperature, -30°C~80°C Storage Temperature, LED Backlight (27 CHIPS Parallel, VF=9.0V, IF=180mA), Driver IC: JD9165, 12 O'Clock Viewing Direction, HK-IPS TFT
1. Executive Summary & Product Positioning
The LS070I09-R-V1, developed by Lixin (Wan'an) Intelligent Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 7.0-inch transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module.
This product specification (Revision 1.0, Module Type: COG+FPC+B/L) serves as the definitive technical document, defining its structural composition (COG+FPC+B/L), general description, physical features, mechanical specifications, outline dimensions, absolute maximum ratings, pin description, and timing characteristics. It delivers a WSVGA resolution of 1024(RGB)×600 with 16.7M-color display capability.
The document provides the core parameters necessary for system integration into embedded display applications requiring a standard 7.0-inch display with a 24-bit parallel RGB interface. The unequivocal recommendation for engineers is to strictly adhere to the electrical specifications, interface timing, and mechanical tolerances 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 Type: HK-IPS TFT, Transmissive.
- Display Format: Graphic 1024(RGB)×600 pixel array (WSVGA resolution).
- Display Characteristics: Capable of displaying up to 16.7 million colors.
- Module Construction: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight Unit).
- Interface Type: 24-bit Parallel RGB (DE/SYNC mode selectable via MODE pin).
- Connector Pin Count: 49-Pin (from pin description).
- Viewing Direction: 12 O'Clock.
- Driver IC: JD9165.
- Backlight LED: White LED 27 CHIPS Parallel (VF=9.0V, IF=180mA).
- Approval Status: ☑ Approved Product Specification only (as per signature block).
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Panel Size (Diagonal) | 7.0 inch |
| Number of dots / Resolution | 1024(RGB) × 600 pixel |
| Display Type | 7.0" TFT, a-Si TFT, Transmissive, HK-IPS |
| Module Type | COG+FPC+B/L |
| Module Size (H×V×D) | 164.86 × 99.96 × 3.5 mm |
| Active Area (H×V) | 153.84 × 85.63 mm |
| Display Colors | 16.7M |
| Viewing Direction | 12 O'Clock |
| Driver IC | JD9165 |
| Backlight Type | White LED 27 CHIPS Parallel |
3.2 Electrical & Interface Specifications
3.2.1 Pin Description (49-pin FPC)
The module uses a 49-pin interface with a 24-bit Parallel RGB configuration. The full pin assignments are as follows:
| Pin NO. | Symbol | Description | Function Group |
|---|---|---|---|
| 1 | VLEDA+ | Power for LED backlight (Anode) | Backlight |
| 2 | VLEDA+ | Power for LED backlight (Anode) | Backlight |
| 3 | VLED- | Power for LED backlight (Cathode) | Backlight |
| 4 | VLED- | Power for LED backlight (Cathode) | Backlight |
| 5 | GND | Power ground | Power/Ground |
| 6 | VCOM | Common Voltage | Power |
| 7 | DVDD | Digital Power | Power |
| 8 | MODE | DE/SYNC mode select. Normally pull high H:DE mode, L:HSD/VSD mode | Control |
| 9 | DE | Data Enable signal | RGB Interface |
| 10 | VSD | Vertical sync input. Negative polarity | RGB Interface |
| 11 | HSD | Horizontal sync input. Negative polarity | RGB Interface |
| 12 | B7 | Blue Data Input (MSB) | RGB Data Bus |
| 13 | B6 | Blue Data Input | RGB Data Bus |
| 14 | B5 | Blue Data Input | RGB Data Bus |
| 15 | B4 | Blue Data Input | RGB Data Bus |
| 16 | B3 | Blue Data Input | RGB Data Bus |
| 17 | B2 | Blue Data Input | RGB Data Bus |
| 18 | B1 | Blue Data Input | RGB Data Bus |
| 19 | B0 | Blue Data Input (LSB) | RGB Data Bus |
| 20 | G7 | Green Data Input (MSB) | RGB Data Bus |
| 21 | G6 | Green Data Input | RGB Data Bus |
| 22 | G5 | Green Data Input | RGB Data Bus |
| 23 | G4 | Green Data Input | RGB Data Bus |
| 24 | G3 | Green Data Input | RGB Data Bus |
| 25 | G2 | Green Data Input | RGB Data Bus |
| 26 | G1 | Green Data Input | RGB Data Bus |
| 27 | G0 | Green Data Input (LSB) | RGB Data Bus |
| 28 | R7 | Red Data Input (MSB) | RGB Data Bus |
| 29 | R6 | Red Data Input | RGB Data Bus |
| 30 | R5 | Red Data Input | RGB Data Bus |
| 31 | R4 | Red Data Input | RGB Data Bus |
| 32 | R3 | Red Data Input | RGB Data Bus |
| 33 | R2 | Red Data Input | RGB Data Bus |
| 34 | R1 | Red Data Input | RGB Data Bus |
| 35 | R0 | Red Data Input (LSB) | RGB Data Bus |
| 36 | GND | Power ground | Power/Ground |
| 37 | DCLK | Clock input | RGB Interface |
| 38 | GND | Power ground | Power/Ground |
| 39 | SHLR | Left or Right Display Control | Control |
| 40 | UPDN | Up/Down Display Control | Control |
| 41 | VGH | Positive Power for TFT | Power |
| 42 | VGL | Negative Power for TFT | Power |
| 43 | AVDD | Analog Power | Power |
| 44 | RSTB | Global reset pin. Active low to enter reset state. Suggest to connecting with an RC reset circuit for stability. Normally pull high. (R= 10KΩ, C= 1μF) | Control |
| 45 | SCL(NC) | Serial interface clock (No connection) | NC |
| 46 | VCOM | Common Voltage | Power |
| 47 | NC | No connection | NC |
| 48 | GND | Power ground | Power/Ground |
| 49 | SDI(NC) | SPI interface input pin (No connection) | NC |
Interface Summary:
- RGB Interface: Uses standard 24-bit parallel RGB (8 bits per color: R7-R0, G7-G0, B7-B0) with DE (Data Enable), VSD (Vertical Sync, negative polarity), HSD (Horizontal Sync, negative polarity), and DCLK (Clock) signals.
- MODE Selection: Pin 8 (MODE) selects between DE mode (pull high) and SYNC mode (pull low). Normally pull high (H:DE mode, L:HSD/VSD mode).
- Backlight: VLEDA+ (Pins 1, 2) for Anode and VLED- (Pins 3, 4) for Cathode. Backlight circuit: White LED 27 CHIPS Parallel (VF=9.0V, IF=180mA).
- Power: DVDD (Pin 7) for Digital Power, AVDD (Pin 43) for Analog Power, VGH (Pin 41) for Positive TFT Power, VGL (Pin 42) for Negative TFT Power, VCOM (Pins 6, 46) for Common Voltage, GND (Pins 5, 36, 38, 48) for ground.
- Control: RSTB (Pin 44) for hardware reset (active low, with suggested RC circuit R=10KΩ, C=1μF), SHLR (Pin 39) for Left/Right display control, UPDN (Pin 40) for Up/Down display control.
- Unused Pins: SCL (Pin 45) and SDI (Pin 49) are specified as NC (No connection) for this configuration. Pin 47 is also NC.
3.2.2 Timing Characteristics - 24-bit Parallel RGB Input Timing (1024x600)
The specification provides detailed timing parameters for 1024x600 resolution in 24-bit parallel RGB mode:
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| DCLK Frequency | - | 40.8 | 51.2 | 67.2 | MHZ |
| Horizontal Total | tht | 1114 | 1344 | 1400 | DCLK |
| Hsync Pulse width | ths | 1 | 24 | HBP-1 | DCLK |
| Horizontal Back Porch | thb | 60 | 160 | 160 | DCLK |
| Horizontal Valid Data | thd | 1024 | 1024 | 1024 | DCLK |
| Horizontal Front Porch | thfp | 30 | 160 | 216 | DCLK |
| Vertical Total | tvt | 610 | 635 | 800 | THT |
| Vsync Pulse Width | tvs | 1 | 2 | VBP-1 | THT |
| Vertical Back Porch | tvb | 8 | 23 | 100 | THT |
| Vertical Valid Data | tvd | 600 | 600 | 600 | THT |
3.2.3 Power On/Off Sequence
The specification provides power on/off timing charts with the following key sequences:
Power On Sequence:
- Power on VDD/VDDIO
- Wait min 1ms
- Power on AVDD, VGH, VGL
- Wait min 10ms
- Power on backlight (LED_A)
Power Off Sequence (Reverse order):
- Power off backlight (LED_A)
- Wait min 100ms
- Power off AVDD, VGH, VGL
- Wait min 1ms
- Power off VDD/VDDIO
3.3 Backlight Characteristics
The backlight uses White LED 27 CHIPS in parallel configuration.
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Forward Voltage | VF | 9.0 (from circuit diagram: LED 9V 180MA) | V |
| Forward Current | IF | 180 | mA |
4. Application Guidelines & Critical Notes
Intended Use
- Industrial control panels and human-machine interfaces (HMIs)
- Portable media players and handheld devices
- Any application requiring a standard 7.0-inch display with a 24-bit parallel RGB interface
Critical Design Considerations
- Interface (24-bit Parallel RGB): This module uses a standard 24-bit parallel RGB interface. The host controller must support the required DCLK frequency (40.8 to 67.2 MHz typical 51.2 MHz) and the proper horizontal/vertical timing parameters for 1024×600 resolution.
- MODE Selection: Pin 8 (MODE) must be set appropriately: pull high (H) for DE mode (using DE signal), or pull low (L) for SYNC mode (using HSD/VSD signals). The default is pulled high (DE mode).
- Power Supply: Provide stable DVDD (Digital Power), AVDD (Analog Power), VGH (Positive TFT Power), VGL (Negative TFT Power), and VCOM (Common Voltage). The backlight requires a constant-current LED driver set to 180mA at approximately 9.0V.
- Display Orientation Control: Pins SHLR (Pin 39) and UPDN (Pin 40) allow for left/right and up/down display orientation control.
- Reset Circuit: It is recommended to connect an external RC reset circuit to the RSTB pin for stability (R=10KΩ, C=1μF). The reset is active low.
- Mechanical Integration: Module outline: 164.86mm × 99.96mm × 3.5mm. Active area: 153.84mm × 85.63mm. Note the important dimension tolerance of ±0.2mm.
- Temperature Limits: Operating Temperature: -20°C to +70°C. Storage Temperature: -30°C to +80°C.
- Power Sequence: Follow the provided power on/off sequence carefully to prevent damage to the module. Power on: VDD/VDDIO → AVDD/VGH/VGL → Backlight. Power off: Reverse order with specified delays.
- Backlight Current: The backlight uses 27 LED chips in parallel. Total forward current is 180mA at 9.0V. Ensure the LED driver is properly designed for this configuration.
- Unused Pins: Pins marked NC (Pin 45 SCL, Pin 47, Pin 49 SDI) should be left unconnected. Pins marked NC in the pin description should remain floating.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass and a 49-pin FPC – handle with care.
- Avoid bending the FPC sharply, especially near the connector interface.
- Do not attempt to disassemble or process the LCD module.
- NC terminals should be open. Do not connect anything.
- If the logic circuit power is off, do not apply the input signals.
5. Conclusion & Design-In Support
The LS070I09-R-V1 specification details a standard 7.0-inch WSVGA display module with a 24-bit parallel RGB interface, HK-IPS TFT technology, and 16.7M color support — an excellent choice for applications requiring a reliable and standard 7.0-inch display with a parallel RGB interface.
Key Strengths
- WSVGA Resolution (1024×600): Provides adequate image quality for a 7.0-inch display.
- HK-IPS TFT Technology: Offers superior viewing angles and color reproduction compared to standard TN panels.
- 24-bit Parallel RGB Interface: Standard interface compatible with a wide range of microcontrollers and processors.
- DE/SYNC Mode Selectable: Flexible interface configuration via MODE pin for DE mode or SYNC mode operation.
- 16.7M Colors: High color depth (24-bit true color) provides excellent color reproduction.
- Standard 7.0-inch Size: Suitable for a wide range of embedded and industrial applications.
- Wide Operating Temperature Range: -20°C to +70°C for operation and -30°C to +80°C for storage.
- Display Orientation Control: SHLR and UPDN pins allow for flexible display mounting.
- 27-LED Backlight: Provides high brightness capability with parallel configuration.
Main Design Focus
- The critical design task is properly configuring the 24-bit parallel RGB interface on the host processor with the correct timing parameters (DCLK frequency = 40.8~67.2 MHz, horizontal total = 1114~1400 DCLK, vertical total = 610~800 THT) for 1024×600 resolution.
- Supporting requirements: Provide stable DVDD, AVDD, VGH, VGL, and VCOM power supplies. Provide a constant-current backlight driver set to 180mA at 9.0V. Implement the proper power on/off sequence with specified delays. Mechanical integration — the module outline is 164.86mm × 99.96mm × 3.5mm.
This module is an excellent choice for industrial control panels, HMIs, and any embedded system requiring a standard 7.0-inch display with a parallel RGB interface and IPS-like viewing performance.
