LSC055I16-MP-V1: 5.5-Inch TFT LCD Module, 1080×1920 Resolution, MIPI Interface, Free Viewing Direction
Product Subtitle / Keywords
5.5 Inch Display, 1080(RGB)×1920 Resolution, a-Si TFT-LCD Module, Transmissive, Free Viewing Direction, 16.7M Display Colors, COG+FPC+B/L+CTP Module Type, MIPI-DSI Interface (4 Data Lanes), Driver IC JD9522, Operating Temperature -10°C to +60°C, Storage Temperature -20°C to +70°C, Supply Voltage IOVCC=1.8V (Typ), VCI=2.8V (Typ), Backlight IF=40mA, VF=21-22.4V, Module Brightness 350 cd/m² (Typ), RoHS Compliant, Spec Rev 1.0, Lesson Smart Display Technology Co., Ltd.
1. Executive Summary & Product Positioning
The LSC055I16-MP-V1, developed by Lesson Smart Display Technology Co., Ltd. (立信(万安)智显科技有限公司), is a 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. The panel size is 5.5 inch and the resolution is 1080(RGB)*1920, the panel can display up to 16.7M colors. The module type is COG+FPC+B/L+CTP.
This product specification (Revision 1.0) serves as the definitive technical document, defining the module's general description, physical features, outline dimension (including detailed mechanical drawings), absolute maximum ratings, electrical characteristics, module function description (including pin description for MIPI DSI, TP, and backlight), and electro-optical characteristics (including luminance, uniformity, and response time definitions).
The document provides the core parameters necessary for system integration into standard 5.5-inch high-resolution landscape/portrait display applications. The unequivocal recommendation for engineers is to strictly adhere to the mechanical and electrical specifications 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 Resolution: High-density portrait/landscape format: 1080(RGB) × 1920 pixel array.
- Display Mode: Free Viewing Direction, Active matrix TFT, Transmissive type.
- Module Construction: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight) + CTP (Capacitive Touch Panel).
- Interface Type: The module uses a high-speed MIPI DSI (Display Serial Interface) for pixel data and command/register configuration. The signal descriptions include D0P/N, D1P/N, D2P/N, D3P/N (4 data lanes), CP/CN (clock lane), and standard control signals like RST and TE.
- Power Architecture: The module's driver IC JD9522 supports multiple power supplies: IOVCC (1.65V to 3.6V, Typ 1.8V) for the I/O block and VCI (2.5V to 4.8V, Typ 2.8V) for the analog core.
- Backlight: The backlight driving condition requires a constant current of IF=40mA with a forward voltage range of VF=21 to 22.4V. The LED life time is defined as the module brightness decrease to 50% of original brightness at IL=20mA.
- Touch Panel: The module includes a Capacitive Touch Panel (CTP) interface with its own dedicated pins: VDD (2.8V), INT, SCL, SDA, and RST. The specification includes specific mechanical notes regarding the CTP: the CTP VA window should be 0.3mm larger than the LCD AA on each side, the CTP foam window should be 0.7mm larger than the LCD AA, and the shell glass window should be 0.3mm larger than the LCD AA.
- Driver IC: The module is driven by the JD9522 IC, which is a CMOS device.
- Supplier: 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd).
- Date: The document is dated 2025-09-10 (Revision 1.0).
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Item | Specification | Unit |
|---|---|---|
| Model | LSC055I16-MP-V1 | - |
| Display Size (Diagonal) | 5.5 | inch |
| Resolution | 1080(RGB) × 1920 | pixels |
| Display Type / Mode | Transmissive a-Si TFT-LCD, Active matrix TFT, Free Viewing Direction | - |
| Module Type | COG+FPC+B/L+CTP | - |
| Display Colors | 16.7M | colors |
| Main LCD Driver IC | JD9522 | - |
| Interface | MIPI DSI (4 Data Lanes) | - |
| Backlight IF | 40 | mA |
| Backlight VF | 21 - 22.4 | V |
| Module Brightness (Typ) | 350 | cd/m² |
| LCM OD (Outer Dimension) | 70.8 | mm |
| LCD AA (Active Area) | 68.04 | mm |
| LCD CF (Color Filter) | 69.64 | mm |
| POL (Polarizer) | 69.14 | mm |
| LENS VA (Viewing Area) | 68.53 ± 0.15 | mm |
| LCM Total Thickness | 2.68 ± 0.2 | mm |
| Plane Warpage | ≤ 0.3 | mm |
| Supplier | 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd) | - |
3.2 Interface & Electrical Specifications
3.2.1 Absolute Maximum Ratings
(Ta=25±2°C, Vss=GND=0V)
| Item | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (I/O) | IOVCC | -0.3 | 3.6 | V |
| Supply Voltage (Analog) | VCI | -0.3 | 4.8 | V |
| TFT Gate On voltage | VGH | -0.3 | 16 | V |
| TFT Gate Off voltage | VGL | -16 | 0.3 | V |
| Backlight Forward Current | $I_{F}$ | - | 40 | mA |
| Operating Temperature | $T_{OPR}$ | -20 | +70 | °C |
| Storage Temperature | $T_{STG}$ | -30 | +80 | °C |
| Humidity | RH | - | 90 | % |
3.2.2 Recommended Operating Conditions
(Ta=25±2°C, Vss=GND=0V)
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Voltage 1 | IOVCC | 1.65 | - | 3.6 | V |
| Power Supply Voltage 2 | VCI | 2.5 | - | 4.8 | V |
| Input Voltage "L" Level | $V_{IL}$ | -0.3 | - | 0.3IOVCC | V |
| Input Voltage "H" Level | $V_{IH}$ | 0.7IOVCC | - | IOVCC | V |
| Output Voltage "L" Level | $V_{oL}$ | 0 | - | 0.2IOVCC | V |
| Output Voltage "H" Level | $V_{oH}$ | 0.8IOVCC | - | IOVCC | V |
| Analog operating voltage (Positive) | VSP | 4.5 | - | 6.6 | V |
| Analog operating voltage (Negative) | VSN | -6.6 | - | -4.5 | V |
3.2.3 Pin Description (31-Pin + TP Pins FPC)
The module uses a 31-pin (LCM) + 6-pin (TP) FPC connector. Key pins include:
| PIN NO. (LCM) | Symbol | Description |
|---|---|---|
| 1-3 | A | Back-light Anode |
| 4 | NC | No Connection |
| 5-8 | K | Back-light Cathode |
| 9, 10 | GND | Power Ground |
| 11, 12 | D2P/N | MIPI-DSI DATA signal input (Lane 2) |
| 13 | GND | Power Ground |
| 14, 15 | D1P/N | MIPI-DSI DATA signal input (Lane 1) |
| 16 | GND | Power Ground |
| 17, 18 | CP/CN | MIPI-DSI CLOCK signal input |
| 19 | GND | Power Ground |
| 20, 21 | D0P/N | MIPI-DSI DATA signal input (Lane 0) |
| 22 | GND | Power Ground |
| 23, 24 | D3P/N | MIPI-DSI DATA signal input (Lane 3) |
| 25 | GND | Power Ground |
| 26 | NC | No Connection |
| 27 | RST | Reset input pin |
| 28 | GND | Power Ground |
| 29 | IOVCC | Power supply for I/O block, 1.8V |
| 30, 31 | VCI | Power supply, 2.8-3.3V |
TP (Touch Panel) Pins:
| PIN NO. | Symbol | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | VDD 2.8V | Power voltage |
| 3 | INT | Interrupt signal for TP |
| 4 | SCL | SCL pin for TP |
| 5 | SDA | SDA pin for TP |
| 6 | RST | Reset Pin for TP |
3.3 Electro-Optical & Timing Characteristics
3.3.1 Electro-Optical Characteristics (Key Parameters)
- Module Brightness (Luminance): 300 cd/m² (MIN), 350 cd/m² (TYP).
- Chromaticity (TYP): X=0.29±0.03; Y=0.30±0.03.
- Viewing Direction: Free (All O'Clock).
- LCD Type/Resolution: LCMI/IPS/FHD (1080x1920).
- Polarizer: Top: 0.15mm (Matte/Silver); Bottom: 0.15mm (Brightness Enhancement).
3.3.2 Luminance Uniformity Definition
Active area is divided into 9 measuring areas. The luminance uniformity is calculated as:
Luminance Uniformity = (Min Luminance of white among 9-points / Max Luminance of white among 9-points) × 100%
3.3.3 Response Time Definition
The response time is defined as the time interval between the 10% and 90% of amplitudes when the input signals are changed from “black” to “white” (rising time) and from “white” to “black” (falling time).
3.3.4 Vertical & Horizontal Timing
Vertical Timing (Resolution=1080x1920):
- Vertical Blanking Period (VBL): Min 6 Lines (VS+VBP+VFP).
- Vertical Active Area: 1920 Lines.
- Vertical Refresh Rate: Typ 60 Hz, Max 66 Hz.
Horizontal Timing (Resolution=1080x1920):
- H Blanking Period: Typ 500 ns.
- H Active Area: Typ 8.25 µs (1080 pixels).
- HS Low Pulse Width (HS): Min 30 ns.
- H Back Porch (HBP): Min 220 ns.
- H Front Porch (HFP): Min 250 ns.
4. Application Guidelines & Critical Notes
Intended Use
- High-resolution 5.5-inch smartphone, tablet, and portable display applications requiring Full HD+ resolution (1080x1920).
- Systems requiring a high-speed 4-lane MIPI DSI interface for high bandwidth video data.
- Applications requiring a built-in capacitive touch panel (CTP) with an independent I2C interface.
Critical Design Considerations
- Dual Power Supplies (IOVCC, VCI): The module requires two primary power rails: an I/O supply (IOVCC=1.65V-3.6V) and an analog/core supply (VCI=2.5V-4.8V). Proper power sequencing and decoupling are essential. Consider the need for VSP/VSN for analog operation if supported by the driver IC.
- High-Speed 4-Lane MIPI DSI Interface: The module uses a 4-lane MIPI DSI interface (Lane0, Lane1, Lane2, Lane3) plus a dedicated clock lane (CP/CN). The host processor must support this configuration. PCB layout must ensure proper differential impedance (typically 100 ohms) and length matching for all high-speed differential pairs.
- High Resolution (1080x1920): The Full HD+ resolution demands significant processing power and memory bandwidth from the host system.
- External Backlight LED Driver Required: The backlight consists of multiple LEDs (implied by "A" and "K" pins). A boosting constant-current LED driver is required to supply 40mA at a forward voltage of 21-22.4V.
- Reset Sequence: The module includes a dedicated Reset pin (RST). It must be properly driven low and then high according to the driver IC's initialization sequence. The RST pin is also present for the TP.
- Free Viewing Direction: The display features a "Free" viewing direction, providing consistent image quality from any perspective.
- Temperature Range (-10°C to +60°C Operating): A standard consumer/industrial temperature range with extended storage capability (-20°C to +70°C).
- Mechanical Design Notes: The specification includes specific mechanical notes: CTP VA window should be 0.3mm larger than LCD AA on each side; CTP foam window should be 0.7mm larger; shell glass window should be 0.3mm larger; shell foam window should be 0.9mm larger. Plane warpage should be ≤0.3mm.
- RoHS Compliance: The module is RoHS compliant.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly.
- The module contains fragile glass – handle with care. Avoid mechanical stress on the active area or FPC.
- Do not attempt to disassemble or modify the LCD module.
- The module is RoHS compliant.
- Unmarked tolerances are ±0.2mm. Dimensions marked with * are critical. Dimensions marked with () are reference.
5. Conclusion & Design-In Support
The LSC055I16-MP-V1 specification details a high-resolution 5.5-inch (1080×1920) TFT LCD module with a transmissive display, a high-speed 4-lane MIPI DSI interface, and an integrated capacitive touch panel — a powerful and feature-rich choice for demanding embedded display applications.
Key Strengths
- Full HD+ Resolution (1080x1920): Provides exceptional pixel density for sharp text and detailed graphics.
- High-Performance MIPI DSI Interface: The 4-lane interface ensures sufficient bandwidth for full HD video.
- Integrated Capacitive Touch Panel (CTP): Provides a complete touch display solution.
- Free Viewing Direction Display: Ensures consistent image quality from any perspective.
- Detailed Technical Documentation: Comprehensive specs with explicit pin definitions and mechanical notes facilitate rapid and reliable integration.
Main Design Focus
- The critical design tasks are implementing the dual-rail power supply (IOVCC, VCI) with correct decoupling, interfacing the host processor's 4-lane MIPI DSI controller with correct differential signal routing (100-ohm impedance, length matching), providing a constant-current LED backlight driver (40mA at ~22V), and implementing the proper reset and initialization sequence for both the display and touch controller.
- Supporting requirements: Connect all ground pins (GND). Ensure the RST pin is driven low for a proper initialization sequence. Follow the MIPI DSI initialization sequence.
This module is an excellent choice for engineers designing high-end embedded systems that require a Full HD portrait display with touch and a high-speed MIPI interface.
