LS070T06-R-V1: 7.0-Inch a-Si TFT LCD Module, 800×480 Resolution, 24-bit RGB Interface, 50-Pin, Driver IC EK9716/EK73002, Transmissive, 6 O'Clock
Product Subtitle / Keywords
7.0 Inch Display, 800(RGB)×480 Resolution, Transmissive a-Si TFT-LCD Module, 24-bit RGB Interface, 50-Pin Connector, Driver IC EK9716 (Main LCD Driver) / EK73002, COG+FPC+B/L, Display Colors 16.7M, Backlight: White LED 18 Chips Parallel, Viewing Direction: 6 O'Clock, VCOM: 3.3V, DEVDD: 3.3V, VGH: 16V (Typ, from power diagram), VGL: -7V (Typ, from power diagram), AVDD: 9.6V (Typ, from power diagram), Operating Temp: -20°C to +70°C, Storage Temp: -30°C to +80°C, DCLK Frequency: 29.2 MHz (Typ, Dual gate), Lesson Smart Display Technology Co., Ltd
1. Executive Summary & Product Positioning
The LS070T06-R-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 7.0-inch transmissive a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module.
This product specification (Revision 1.0, dated 2024-03-15) serves as the definitive technical document, defining its general description (including a 800(RGB)*480 resolution and 16.7M color display), physical features, outline dimensions, absolute maximum ratings, electrical characteristics, and timing characteristics.
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: Transmissive type, 6 O'CLOCK viewing direction.
- Display Format: Graphic 800(RGB) × 480 pixels (WVGA resolution).
- Module Construction: COG+FPC+B/L (Chip-On-Glass + Flexible Printed Circuit + Backlight).
- Interface Type: 24-bit Parallel RGB Interface.
- Driver IC: EK9716 (Main LCD Driver) / EK73002.
- Pin Count: 50-pin connector.
- Backlight: White LED 18 Chips (Parallel configuration).
- Display Colors: 16.7M.
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Module Model | LS070T06-R-V1 |
| LCD Size (Diagonal) | 7.0 inch |
| Display Type | Transmissive |
| Resolution | 800(RGB) × 480 Dots |
| Viewing Direction | 6 O'CLOCK |
| Module Type | COG+FPC+B/L |
| Driver IC | EK9716 / EK73002 |
| Backlight Type | White LED 18 CHIPS Parallel |
| Interface | 24 bit RGB (Parallel) |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Supplier | 立信(万安)智显科技有限公司 (Lesson Smart Dispaly Technology Co.,Ltd) |
| Document Revision / Date | Revision 1.0 / 2024-03-15 |
3.2 Electrical & Interface Specifications
3.2.1 Pin Description (50-pin Connector)
The module uses a 50-pin interface with a 24-bit RGB parallel interface including power and control signals.
| Pin No. | Symbol | I/O | Function |
|---|---|---|---|
| 1 | LED-K | P | Backlight Cathode |
| 2 | LED-A | P | Backlight Anode |
| 3 | VCOM | I | Common Voltage |
| 4 | DEVDD | P | Digital Power Supply |
| 5 | NC | - | No Connection |
| 6 | NC | - | No Connection |
| 7 | GND | P | Power Ground |
| 8 | DCLK | I | Clock Input |
| 9 | GND | P | Power Ground |
| 10 | HSD | I | Horizontal Sync Input |
| 11 | VSD | I | Vertical Sync Input |
| 12 | GND | P | Power Ground |
| 13 | B7 | I | Blue Data Input (MSB) |
| 14 | B6 | I | Blue Data Input |
| 15 | B5 | I | Blue Data Input |
| 16 | B4 | I | Blue Data Input |
| 17 | B3 | I | Blue Data Input |
| 18 | B2 | I | Blue Data Input |
| 19 | B1 | I | Blue Data Input |
| 20 | B0 | I | Blue Data Input (LSB) |
| 21 | G7 | I | Green Data Input (MSB) |
| 22 | G6 | I | Green Data Input |
| 23 | G5 | I | Green Data Input |
| 24 | G4 | I | Green Data Input |
| 25 | G3 | I | Green Data Input |
| 26 | G2 | I | Green Data Input |
| 27 | G1 | I | Green Data Input |
| 28 | G0 | I | Green Data Input (LSB) |
| 29 | R7 | I | Red Data Input (MSB) |
| 30 | R6 | I | Red Data Input |
| 31 | R5 | I | Red Data Input |
| 32 | R4 | I | Red Data Input |
| 33 | R3 | I | Red Data Input |
| 34 | R2 | I | Red Data Input |
| 35 | R1 | I | Red Data Input |
| 36 | R0 | I | Red Data Input (LSB) |
| 37 | GND | P | Power Ground |
| 38 | DCLK | I | Clock Input |
| 39 | GND | P | Power Ground |
| 40 | SHLR | I | Left or Right Display Control |
| 41 | UPDN | I | Up/Down Display Control |
| 42 | VGH | P | Positive Power for TFT |
| 43 | VGL | P | Negative Power for TFT |
| 44 | AVDD | P | Analog Power |
| 45 | RSTB | I | Global reset pin Active low. Suggest to connecting with an RC reset circuit for stability. Normally pull high. (R=10KΩ, C=1μF) |
| 46 | NC | - | Not connect |
| 47 | VCOM | I | Common Voltage |
| 48 | DITH | I | Dithering setting. DITH="H": 6bit resolution (last 2 bit of input data truncated). DITH="L": 8bit resolution (default setting). |
| 49 | GND | P | Power Ground |
| 50 | NC | - | Not connect |
3.2.2 Timing Characteristics (Parallel 24-bit RGB Mode)
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| CLKIN Frequency (Dual gate) | Fclk | VDD = 3.3V | - | 29.2 | 46.5 | MHz |
| CLKIN Cycle Time (Dual gate) | Tclk | - | 22 | 34 | - | ns |
| CLKIN Frequency (cascade) | Fclk | VDD = 3.3V | - | 29.2 | 40 | MHz |
| CLKIN Cycle Time (cascade) | Tclk | - | 25 | 34 | - | ns |
| CLKIN Pulse Duty | Tcwh | - | 40 | 50 | 60 | % |
3.2.3 Absolute Maximum Ratings
| Item | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|
| Supply voltage | VDD | -0.3 | 3.3 | V |
| Supply voltage | VCI | -0.3 | 5.0 | V |
| Operating temperature | TOPR | -20 | 70 | °C |
| Storage temperature | TSTR | -30 | 80 | °C |
3.3 Electro-Optical Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Response time | Tr + Tf | θx = θy =0 | -- | TBD | TBD | ms |
| Contrast Ratio | CR | θx = θy =0 | -- | 500 | -- | -- |
| Transmittance | T% | θx = θy =0 | 5 | 5.5 | -- | % |
| Color Chromaticity (White) | W x | θx = θy =0 | 0.276 | 0.306 | -- | -- |
| Color Chromaticity (White) | W y | θx = θy =0 | 0.314 | 0.344 | -- | -- |
| Viewing angle (Top) | θT | CR > 10 | 60 | 70 | -- | Deg. |
| Viewing angle (Bottom) | θB | CR > 10 | 60 | 70 | -- | Deg. |
| Viewing angle (Left) | θL | CR > 10 | 50 | 60 | -- | Deg. |
| Viewing angle (Right) | θR | CR > 10 | 60 | 70 | -- | Deg. |
| Luminance (IF = 120mA) | L | -- | 300 | 350 | -- | cd/m2 |
4. Application Guidelines & Critical Notes
Intended Use
- Applications where thin thickness, wide viewing angle and low power are critical factors and graphic displays are important.
- Industrial control panels and human-machine interfaces (HMIs).
- Embedded systems requiring a standard 7.0-inch display with a 24-bit RGB interface.
Critical Design Considerations
- Interface (24-bit RGB): This module uses a 24-bit parallel RGB interface (R7-R0, G7-G0, B7-B0). The host controller must provide the correct timing for these signals.
- Power Supply: Provide stable voltages: DEVDD (3.3V) for Digital Circuit, AVDD (9.6V Typ, from power diagram) for Analog Circuit, VGH (16V Typ, from power diagram) for Gate ON, and VGL (-7V Typ, from power diagram) for Gate OFF. The backlight requires a constant-current LED driver connected to the LED-A and LED-K pins (IF = 120mA).
- Display Orientation Control: Pins SHLR (Pin 40) and UPDN (Pin 41) allow for flexible display orientation.
- Dithering Setting: Pin 48 (DITH) controls the resolution setting. When DITH="H", the module operates at 6bit resolution (last 2 bits truncated). When DITH="L" (default), it operates at 8bit resolution for full 16.7M colors.
- Reset (RSTB): Pin 45 (RSTB) is an active-low global reset pin. It is recommended to connect with an RC reset circuit (R=10KΩ, C=1μF) for stability and normally pull high.
- Temperature Limits: Operating Temperature: -20°C to +70°C. Storage Temperature: -30°C to +80°C.
- Backlight Circuit: IF=120mA, VF=9.6V for the LED backlight. Ensure proper LED driver design for the 18 CHIPS Parallel configuration.
- Power Sequencing: A proper power sequence should be followed to prevent damage to the module.
Handling & Compliance
- The module is ROHS COMPLIANCE.
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass and 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 LS070T06-R-V1 specification details a standard 7.0-inch WVGA display module with a 24-bit parallel RGB interface, driver IC EK9716/EK73002, 16.7M color support, and robust electro-optical characteristics — an excellent choice for applications requiring a reliable and standard 7.0-inch display.
Key Strengths
- WVGA Resolution (800×480): Suitable standard resolution for 7.0-inch displays.
- 24-bit RGB Parallel Interface: Standard, easy-to-use parallel interface with wide support.
- High Contrast Ratio (500 Typ): Provides good image quality.
- Wide Viewing Angles: 60°-70° typical in all directions.
- Wide Operating Temperature Range: -20°C to +70°C suitable for industrial environments.
- Flexible Orientation Control: Via SHLR and UPDN pins for versatile mounting.
- 16.7M Colors: Offers rich color display capability.
- ROHS Compliant: Environmentally friendly design.
- Driver IC EK9716/EK73002: Specific driver for optimized display performance.
Main Design Focus
- The critical design task is properly configuring the host processor's 24-bit parallel RGB interface to drive the 800×480 resolution at a DCLK frequency of 29.2 MHz (Typ) to 46.5 MHz (Max) for dual gate mode.
- Supporting requirements: Provide stable DEVDD (3.3V), AVDD (9.6V Typ), VGH (16V Typ), and VGL (-7V Typ) power supplies. Provide a constant-current backlight driver (IF=120mA, VF=9.6V). Follow the reset timing with RC circuit and ESD precautions.
This module is an excellent choice for industrial control panels, HMIs, and any embedded system requiring a standard 7.0-inch display with a direct parallel RGB interface and wide viewing angles.
