LS070I15-MP-V1: 7.02-Inch a-Si TFT LCD Module, 1200×1920 Resolution, MIPI DSI Interface, Color Active Matrix, Transmissive, Normal Black

LS070I15-MP-V1: 7.02-Inch a-Si TFT LCD Module, 1200×1920 Resolution, MIPI DSI Interface, Color Active Matrix, Transmissive, Normal Black

Product Subtitle / Keywords

7.02 Inch Display, 1200(RGB)×1920 Resolution, Color Active Matrix a-Si TFT-LCD Module, MIPI DSI Interface, 1.07B Colors, Transmissive Type, Normally Black Display Mode, Operating Temperature -20°C to +70°C, Storage Temperature -30°C to +80°C, Power Supply Voltage1 (IOVCC: -0.3 to +2.1V), Power Supply Voltage2 (VSP: -0.3 to 6.6V), Power Supply Voltage3 (VSN: -7.3 to 0.3V), Backlight Input Current (ILED: 350mA Max), Back-light Input Voltage (VLED: 18 to 22V), LED light bar: 56 LED packages, 8 strings (parallel)*7 packages (serial), Lifetime: 50% initial brightness at 350mA, 25±2°C, 2022-09-20

1. Executive Summary & Product Positioning

The LS070I15-MP-V1, developed by Lixin (Wan'an) Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 7.02-inch color active matrix a-Si TFT-LCD module using amorphous silicon TFT's (Thin Film Transistors) as active switching devices.

This product specification (Version 1.0, dated 2022-09-20) serves as the definitive technical document, defining its general description (including a 1200 horizontal by 1920 vertical pixel array and 1.07B color display capability), absolute maximum ratings, electrical characteristics, power ON/OFF sequence, and other related specifications.

The document provides the core parameters necessary for system integration into embedded display applications requiring a high-resolution 7.02-inch display with a MIPI DSI 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: Color active matrix TFT-LCD Model using amorphous silicon TFT's (Thin Film Transistors) as an active switching devices. This model is composed of a TFT-LCD Panel, a driving circuit and a back light system.
• Display Type: Transmissive type display operating in the normal black.
• Display Format: Graphic 1200(H) x 1920(V) pixel array. Each pixel is divided into Red, Green, Blue dots which are arranged in vertical stripe.
• Display Colors: 1.07B colors.
• Module Construction: TFT-LCD Panel, a driving circuit and a back light system.
• Backlight: LED light bar consists of 56LED packages, 8 strings (parallel)*7 packages (serial).
• Power Supply: IOVCC (VSS=GND=0V, -0.3 to +2.1V), VSP (-0.3 to 6.6V), VSN (-7.3 to 0.3V).

3. Exhaustive Technical Specifications

3.1 Mechanical & Physical Specifications

3.2 Electrical & Interface Specifications

3.2.1 Absolute Maximum Ratings (VSS=GND=0V, Ta=25°C)

3.2.2 Backlight LED Configuration

• LED Light Bar: Consists of 56 LED packages, configured as 8 strings (parallel) * 7 packages (serial).
• Backlight Input Current (ILED): 350mA Max at Ta=25°C.
• Back-light Input Voltage (VLED): 18V to 22V at Ta=25°C.
• LED Lifetime: The lifetime is determined as the time at which luminance of LED become 50% of the initial brightness or not normal lighting at IPIN=350mA on condition of continuous operating at 25 ± 2°C.

3.2.3 Power ON/OFF Sequence

The specification includes a critical note: "To prevent a latch-up or DC operation of the LCD FOG, the power on/off sequence shall be as shown in below." This indicates that a specific power sequence diagram exists in the full document. Engineers must follow the power on/off sequence rigorously to prevent damage to the module.

3.3 Optical Characteristics

The specification references optical characteristics and electro-optical characteristics as part of the full document. Specific values for contrast ratio, response time, luminance, and viewing angle are not provided in the text snippet but are likely detailed in the full specification.

4. Application Guidelines & Critical Notes

Intended Use

• High-resolution display applications requiring a 7.02-inch form factor.
• Industrial control panels and human-machine interfaces (HMIs) needing high pixel density.
• Portable media players and handheld devices with high color depth requirements.
• Any application requiring a standard 7.02-inch display with a MIPI DSI interface.

Critical Design Considerations

1. Power Supply: Provide stable voltages: IOVCC (Power Supply Voltage1, Max 2.1V), VSP (Power Supply Voltage2, Max 6.6V), and VSN (Power Supply Voltage3, Min -7.3V). Note that these are absolute maximum ratings; the typical operating voltages should be determined from the full datasheet.
2. Backlight Driving: The backlight requires a constant-current LED driver capable of delivering up to 350mA at a voltage of approximately 18V to 22V. The LED configuration is 8 strings in parallel, each with 7 LEDs in series, totaling 56 LEDs.
3. Power Sequence: Follow the provided power on/off sequence carefully to prevent a latch-up or DC operation of the LCD.
4. High Resolution: The 1200×1920 resolution requires a high-bandwidth interface. The host controller must support the necessary MIPI DSI data rate for this resolution at the required frame rate.
5. Temperature Limits: Operating Temperature: -20°C to +70°C. Storage Temperature: -30°C to +80°C.
6. Display Mode: The module is a transmissive type display operating in the normal black mode. This means the display appears black when no voltage is applied to the pixel.

Handling & Compliance

• Observe standard ESD precautions during handling and assembly.
• The module contains fragile glass – handle with care.
• 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 LS070I15-MP-V1 specification details a high-resolution 7.02-inch WQXGA display module with a 1.07B color depth, MIPI DSI interface, and 56-LED backlight configuration — an excellent choice for applications requiring high pixel density and superior color reproduction.

Key Strengths

• High Resolution (1200×1920): Provides exceptional image quality and clarity for a 7.02-inch display.
• 1.07B Colors: Offers rich, deep color reproduction suitable for advanced graphical content.
• Transmissive, Normally Black Display: Good contrast performance.
• Wide Operating Temperature Range: -20°C to +70°C for operation and -30°C to +80°C for storage.
• Detailed Absolute Maximum Ratings: Clear limits for power supply and backlight conditions.

Main Design Focus

• The critical design task is properly configuring the host processor to drive the high-resolution 1200×1920 panel over a MIPI DSI interface, ensuring sufficient bandwidth.
• Supporting requirements: Provide stable IOVCC, VSP, and VSN power supplies within their absolute maximum ratings. Design a constant-current LED backlight driver that can supply up to 350mA at 18~22V. Strictly follow the specified power on/off sequence.

This module is an excellent choice for high-end display applications, advanced HMIs, and any embedded system requiring a crisp, high-resolution 7.02-inch display with a wide color gamut.