LS055I15-MP-V1: 5.465-Inch a-Si TFT LCD Module, 1536×2560 Resolution, 16.7M Colors, MIPI DSI Interface, Touch Panel Support
Product Subtitle / Keywords
5.465 Inch Display, 1536(RGB)×2560 Resolution, Transmissive a-Si TFT-LCD, MIPI DSI Interface (4 Data Lanes + 1 Clock Lane), COG+FPC+B/L, 16.7M Colors, 1.8V VDDIO, 5.5V VSP, -5.5V VSN, -20°C~60°C Operating Temperature, LED Backlight, Touch Panel (TP) Support, 150Hz Refresh Rate
1. Executive Summary & Product Positioning
The LS055I15-MP-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 5.465-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, electro-optical characteristics, and complete MIPI DSI interface pinout. It delivers an ultra-high-definition resolution of 1536(RGB)×2560 (2K) with 16.7M-color display capability and a high refresh rate of 150Hz.
The document provides the core parameters necessary for system integration into embedded display applications requiring a high-resolution display with a standard high-speed serial 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 Mode: Transmissive type.
- Display Format: Graphic 1536(RGB)×2560 pixel array (2K 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: MIPI DSI (4 data lanes + 1 clock lane as per pin description).
- Touch Panel: Includes touch panel control pins (TP_SDA, TP_SCL, TP_RST, TP_EINT, TP_VDD) for I2C capacitive touch.
- Refresh Rate: 150Hz (Typical), with an operating range of 142.5~157.5 KHz.
- Approval Status: ☑ Approved Product Specification only (as per signature block).
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Panel Size (Diagonal) | 5.465 inch |
| Number of dots / Resolution | 1536(RGB) × 2560 pixel |
| Display Type | 5.465\" TFT, a-Si TFT, Transmissive |
| Module Type | COG+FPC+B/L |
| Display Colors | 16.7M |
3.2 Electrical & Interface Specifications
3.2.1 Electro-Optical Characteristics (Ta = -20 ~ +60°C, VDDIO = 1.8 V, VSP=5.5V, VSN= -5.5V, GND = 0 V)
| Parameter | Symbol | Condition | Min | Typ | Max | Unit | Remark |
|---|---|---|---|---|---|---|---|
| Contrast | CR | θ=0° | 890 | 1275 | - | Note 1,2,4 | |
| Contrast | CR | θ=45° | - | 245 | - | Note 1,2,4 | |
| Contrast | CR | θ=80° | 29 | 49 | - | Note 1,2,4 | |
| Contrast | CR | θ=88° | 10 | - | - | Note 1,2,4 | |
| Brightness | L | θ=0° | 365 | 460 | - | cd/m² | Note 1,4 |
| Brightness | L | θ=45° | 57 | 80 | - | cd/m² | Note 1,4 |
| NTSC ratio | S | θ=0° | 60 | 70 | - | % | Note 1,4 |
| NTSC ratio | S | θ=45° | 60 | 70 | - | % | Note 1,4 |
| Viewing Angle | θ | CR>10 | - | 88 | - | °(degree) | Note 1,2,4 |
| Response Time 1 | Tr+Td | θ=0° | - | 30 | 35 | ms | Note 1,3,4 |
| Response Time 2 | Tr,Td | θ=0° | - | - | 20 | ms | Note 1,3,4 |
| Response Time 3 (Gray to Gray worst) | Tr or Td | θ=0° | - | - | 50 | ms | Note 1,3,4 |
| White Chromaticity | x | θ=0° | 0.283 | 0.308 | 0.333 | - | Note 1, 4 |
| White Chromaticity | y | θ=0° | 0.302 | 0.327 | 0.352 | - | Note 1, 4 |
| Red Chromaticity | x | θ=0° | 0.613 | 0.643 | 0.673 | - | Note 1, 4 |
| Red Chromaticity | y | θ=0° | 0.301 | 0.331 | 0.361 | - | Note 1, 4 |
| Green Chromaticity | x | θ=0° | 0.275 | 0.305 | 0.335 | - | Note 1, 4 |
| Green Chromaticity | y | θ=0° | 0.579 | 0.609 | 0.639 | - | Note 1, 4 |
| Blue Chromaticity | x | θ=0° | 0.128 | 0.158 | 0.188 | - | Note 1, 4 |
| Blue Chromaticity | y | θ=0° | 0.035 | 0.065 | 0.095 | - | Note 1, 4 |
| Uniformity | - | θ=0° | 80 | 90 | - | % | Note 1, 5 |
| Crosstalk | - | θ=0° | - | - | A 6 | % | Note 1, 7 |
| Flicker | - | θ=0° | - | - | 5 | % | Note4, 6 |
| Gamma | - | θ=0° | 1.95 | 2.2 | 2.45 |
3.2.2 Refresh Frame Rate
| Parameter | MIN. | TYP. | MAX. | Unit | Remarks |
|---|---|---|---|---|---|
| Refresh frame rate operation range | 142.5 | 150.0 | 157.5 | KHz | |
| Refresh frame rate tolerance | -5 | - | +5 | % |
3.2.3 Power On Sequence
The specification provides a detailed power-on sequence for the module, which includes the following steps:
| ITEM | Register Address | Register Data list | REMARK |
|---|---|---|---|
| Reset (RESET=\"L\") | |||
| VDDIO=1.8V | VDDIO power on | ||
| WAIT 10ms (min 1.0ms) | Wait to VDDIO=90% (depends on Power Supply Circuit) | ||
| VSP=5.5V | VSP power on | ||
| WAIT 10ms (min 1.0ms) | |||
| VSN=-5.5V | VSN power on | ||
| WAIT 1.0ms (min 10us) | |||
| DSI video mode transfer start | DSI video mode transfer start | DSI video mode transfer start | DSI video mode transfer start |
| WAIT 10us (min 1us) | |||
| RSX (RESET=\"H\") | RSX (RESET=\"H\") | RSX (RESET=\"H\") | RSX (RESET=\"H\") |
| WAIT 10ms (min 5ms) | WAIT 10ms (min 5ms) | WAIT 10ms (min 5ms) | [Automatic] Sleep Mode On |
| Password Key enable | F0h | 0x5A | |
| Password Key enable | F0h | 0x5A | |
| Password Key enable | F1h | 0x5A | |
| Password Key enable | F1h | 0x5A | |
| Password Key enable | FCh | 0x5A | |
| Password Key enable | FCh | 0x5A |
3.3 Version Record
Revision 1.0, dated 2024-03-28.
4. Application Guidelines & Critical Notes
Intended Use
- Smartphones and mobile devices
- Portable media players and handheld gaming consoles
- Industrial control panels and human-machine interfaces (HMIs)
- Any application requiring a 2K resolution display with a standard MIPI interface and high refresh rate
Critical Design Considerations
- Interface (4-lane MIPI DSI): This module uses a MIPI DSI interface with 4 data lanes and 1 clock lane. The host controller must be capable of 4-lane MIPI operation for the 1536×2560 resolution at 150Hz.
- Power Supply: Provide stable VDDIO (1.8V) for I/O, VSP (5.5V) for positive analog, and VSN (-5.5V) for negative analog power supplies. The backlight requires a constant-current LED driver.
- Touch Panel Integration: The module includes a capacitive touch panel interface with I2C communication (TP_SCL, TP_SDA), interrupt (TP_EINT), reset (TP_RST), and power (TP_VDD) signals. Ensure the host has an I2C controller for touch interaction.
- Mechanical Integration: Module pin count: 30 pins. Refer to the full specification document for exact mechanical dimensions.
- Temperature Limits: Operating Temperature: -20°C to +60°C.
- ESD Protection: Observe standard ESD precautions during handling and assembly.
- Reset Sequence: Follow the detailed power-on sequence provided in the specification, including proper timing for VDDIO, VSP, VSN, and RESET signals.
- High Refresh Rate: The module supports a 150Hz refresh rate (typical) with an operating range of 142.5~157.5 KHz. Ensure the host controller can provide the necessary MIPI DSI clock frequency to support this high refresh rate.
- Password Key Enable: The initialization sequence requires writing 0x5A to registers F0h, F1h, and FCh to enable password key access before configuring the module.
Handling & Compliance
- The module is subject to standard ESD precautions during handling and assembly.
- The module contains fragile glass and a 30-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 LS055I15-MP-V1 specification details a standard 5.465-inch 2K resolution display module with a 4-lane MIPI DSI interface, 150Hz refresh rate, and integrated touch panel — an excellent choice for applications requiring a high-resolution display with a standard high-speed serial interface and touch capability.
Key Strengths
- 2K Resolution (1536×2560): Provides exceptional sharpness and detail for a 5.465-inch display.
- High Refresh Rate (150Hz): Enables smooth motion rendering for video and gaming applications.
- MIPI DSI Interface (4 Data Lanes): Sufficient bandwidth for 2K resolution at high refresh rates.
- Integrated Capacitive Touch (I2C): Built-in touch panel with standard I2C interface simplifies system design and reduces BOM.
- High Color Depth: 16.7M colors (24-bit true color) provides excellent color reproduction.
- Standard 5.465-inch Size: Suitable for a wide range of embedded and mobile applications.
- Wide Operating Temperature Range: -20°C to +60°C for operation.
- Excellent Optical Performance: High contrast ratio (1275:1 typical at 0°), wide viewing angle (88°), and good NTSC color gamut (70% typical).
Main Design Focus
- The critical design task is properly configuring the MIPI DSI interface on the host processor for 4-lane operation and ensuring reliable high-speed data transfer for 1536×2560 resolution at 150Hz.
- Supporting requirements: Provide stable VDDIO (1.8V), VSP (5.5V), and VSN (-5.5V) power. Provide a constant-current backlight driver. Integrate the touch panel I2C interface. Follow the detailed power-on sequence including password key enable commands.
This module is an excellent choice for high-end mobile devices, portable applications, and any embedded system requiring a 2K resolution display with high refresh rate, touch capability, and a standard MIPI interface.
