LSC043I07-R-V1: 4.3-Inch TFT LCD Module, 480×272 Resolution, RGB 24-Bit Interface, IPS All-View Display
Product Subtitle / Keywords
4.3 Inch Display, 480(RGB)×272 Resolution, a-Si TFT-LCD Module, Transmissive, Normally Black, 16.7M Display Colors, COG+FPC+B/L+CTP Module Type, RGB 24Bit (TTL) Interface, Driver IC NV3047E, Touch IC GT911, Operating Temperature -20°C to +70°C, Storage Temperature -30°C to +80°C, Supply Voltage VDD=3.3V (Typ), TP_VDD=3.0V (Typ), Backlight IF=40mA (Typ), VF=16V (Typ), Viewing Direction All, Contrast Ratio 1000 (Typ), Response Time 30 ms (Typ), Module Dimension 105.5(W) × 67.2(H) × 4.75(T) mm, Active Area 95.04(W) × 53.86(H) mm, RoHS Compliant, Spec Rev 1.0, Lesson Smart Display Technology Co., Ltd.
1. Executive Summary & Product Positioning
The LSC043I07-R-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 4.3 inch and the resolution is 480(RGB)*272, the panel can display up to 16.7 M 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 specifications, pin assignments, absolute maximum ratings, electrical characteristics, timing charts, optical characteristics, environmental/reliability test, mechanical drawing, and precautions for use.
The document provides the core parameters necessary for system integration into standard 4.3-inch widescreen 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: Standard widescreen format: 480(RGB) × 272 pixel array.
- Display Mode: Normally Black, Active matrix TFT, Transmissive type. The viewing direction is All (IPS-like).
- Module Construction: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight) + CTP (Capacitive Touch Panel).
- Interface Type: The module uses an RGB 24Bit, Digital (TTL) interface for pixel data transfer. The Capacitive Touch Panel (CTP) uses a dedicated I²C interface.
- Power Architecture: The module supports dual power supplies: VDD (3.0V to 3.6V, Typ 3.3V) for the LCD analog/digital core, and TP_VDD (2.8V to 3.3V, Typ 3.0V) for the Touch Panel controller.
- Backlight: A white LED backlight configured as 5 series and 2 parallel strings (10 LEDs total). The driving condition is specified as IF=40mA (Typ, constant current) and a typical forward voltage of VF=16V (Typ).
- Touch Panel: The module includes a Capacitive Touch Panel (CTP) driven by the GT911 IC. It communicates via an I²C interface (pins: XR, YD, XL, YU on the main connector, and SCL, SDA, /RST, INT on the separate touch connector).
- Driver IC: The module is driven by the NV3047E IC.
- Supplier: 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd).
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Item | Specification | Unit |
|---|---|---|
| Model | LSC043I07-R-V1 | - |
| Display Size (Diagonal) | 4.3 | inch |
| Resolution | 480(RGB) × 272 | pixels |
| Display Type / Mode | Transmissive a-Si TFT-LCD, Active matrix TFT, Normally Black | - |
| Module Type | COG+FPC+B/L+CTP | - |
| Display Colors | 16.7M | colors |
| Gray Scale Inversion Direction | / (All Viewing Direction) | - |
| Interface | RGB 24Bit, Digital (TTL) | - |
| Display Driver IC | NV3047E | - |
| Touch Driver IC | GT911 | - |
| Touch Screen | With CTP | - |
| Outline Dimension (W×H×T) | 105.5(W) × 67.2(H) × 4.75(T) | mm |
| Active Area (W×H) | 95.04(W) × 53.86(H) | 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°C)
| Item | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Power Voltage | VDD | -0.50 | 4.0 | V |
| Power Voltage (TP) | TP_VDD | -0.50 | 3.6 | V |
| Backlight Forward Current (LED) | IF | 0 | 60 | mA |
| Operating Temperature | Top | -20.0 | 70.0 | °C |
| Storage Temperature | Tst | -30.0 | 80.0 | °C |
3.2.2 Recommended Operating Conditions (VDD=3.3V, GND=0V, Ta = 25°C)
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Analog/Digital Supply Voltage | VDD | 3.0 | 3.3 | 3.6 | V |
| TP Supply Voltage | TP_VDD | 2.8 | 3.0 | 3.3 | V |
| Input Logic High Voltage | VIH | 0.7*VDD | --- | VDD | V |
| Input Logic Low Voltage | VIL | 0 | --- | 0.3*VDD | V |
3.2.3 Backlight Unit Driving Condition
| Item | Symbol | Min | Typ | Max | Unit | Remark |
|---|---|---|---|---|---|---|
| Forward Current | IF | - | 40 | 50 | mA | 10 LEDs (5 Serial, 2 Parallel) |
| Forward Current Voltage | VF | - | 16 | 17.5 | V | 10 LEDs (5 Serial, 2 Parallel) |
| Operating Life Time | -- | 30000 | -- | -- | hrs | Note 2, Note 3 |
3.2.4 Pin Assignment (Main Connector: XF2M-4015-1A - Partial)
The module uses a 40-pin FPC main connector for the LCD interface and backlight, and a separate 10-pin connector for the touch panel.
| PIN | Symbol | I/O | Description |
|---|---|---|---|
| 1 | LED-K | P | LED Cathode |
| 2 | LED-A | P | LED Anode |
| 3 | VSS | P | Power Ground |
| 4 | VDD | P | Power Source (3.3V) |
| 5-12 | R00-R07 | I | RED Data Signal (R00: LSB, R07: MSB) |
| 13-20 | G00-G07 | I | GREEN Data Signal (G00: LSB, G07: MSB) |
| 21-28 | B00-B07 | I | BLUE Data Signal (B00: LSB, B07: MSB) |
| 30 | DLCK | I | Clock Signal to Sample each data |
| 31 | DISP | I | Display ON/OFF Signal |
| 32 | HSYNC | I | Horizontal Synchronizing Signal |
| 33 | VSYNC | I | Vertical Synchronizing Signal |
| 34 | DE | I | Input Data enable control |
3.3 Timing Characteristics (From Section 5)
3.3.1 Recommended Timing Setting of TCON (From Section 5.4)
Key parameters for the RGB SYNC mode:
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| DCLK Frequency | Fclk | 8 | 9 | 12 | MHz |
| Frame Rate | FR | - | 60 | 75 | Hz |
| HSYNC Period Time | Th | - | 531 | - | DCLK |
| HSYNC Display Period | Thdisp | - | 480 | - | DCLK |
| VSYNC Period Time | Tv | - | 292 | - | H |
| VSYNC Display Period | Tvdisp | - | 272 | - | H |
| Data Setup Time | Tdsu | 12 | - | - | ns |
| Data Hold Time | Tdhd | 12 | - | - | ns |
3.4 Electro-Optical Characteristics (Ta=25°C, IF=40mA)
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| View Angles (θT, θB, θL, θR) | - | CR≥10 | 80 | 85 | - | Degree |
| Contrast Ratio | CR | θ=0° | 800 | 1000 | - | - |
| Response Time (Tr+Tf) | TON+TOFF | 25°C | -- | 30 | 35 | ms |
| Chromaticity (White) | x | Backlight is on | 0.275 | 0.305 | 0.335 | - |
| Chromaticity (White) | y | Backlight is on | 0.306 | 0.336 | 0.366 | - |
| Luminance | L | Backlight is on | - | 460 | - | cd/m² |
| NTSC | - | - | - | 50 | - | % |
| Uniformity | U | - | 70 | 80 | - | % |
4. Application Guidelines & Critical Notes
Intended Use
- Standard 4.3-inch widescreen display applications (e.g., industrial controls, HMIs, portable instruments, consumer electronics).
- Systems requiring a 480x272 resolution display with a full 24-bit RGB parallel interface.
- Applications requiring a built-in capacitive touch panel (CTP) with a separate I²C interface.
Critical Design Considerations
- Dual Power Supply (VDD=3.3V for LCD, TP_VDD=3.0V for Touch): The module requires two separate stable power supplies: VDD for the LCD core and TP_VDD for the touch controller. The logic thresholds (VIL, VIH) are referenced to VDD.
- 24-Bit RGB Parallel Interface (TTL): The module uses a full 24-bit parallel RGB interface (R0-R7, G0-G7, B0-B7, HSYNC, VSYNC, DLCK, DE). This requires many I/O pins from the host processor.
- External Backlight Driver (40mA @ 16V Series/Parallel): The backlight consists of 5 series strings with 2 LEDs in parallel per string (10 total), requiring a constant current driver capable of delivering 40mA at a forward voltage of 16V.
- Separate I²C Capacitive Touch Panel Interface: The CTP uses a dedicated I²C interface on a separate 10-pin connector (SCL, SDA, /RST, INT). The touch controller (GT911) requires its own power supply (TP_VDD) and proper initialization timing.
- Power ON Sequencing: The specification defines a specific power-on sequence that must be followed to ensure proper initialization of the display driver IC.
- All Viewing Angle (IPS-like): The display provides excellent viewing angles (typical 85° in all directions at CR>10).
- Temperature Range (-20°C to +70°C Operating): A standard consumer/industrial temperature range with extended storage capability.
- Environmental/Reliability Tests: The module has been qualified through standard tests including high/low temperature operation, thermal shock, ESD, and vibration.
Handling & Compliance
- Observe standard ESD precautions during handling and assembly. The polarizer is easily scratched; use a soft dry cloth or isopropyl/ethyl alcohol for cleaning.
- 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.
5. Conclusion & Design-In Support
The LSC043I07-R-V1 specification details a compact 4.3-inch widescreen (480×272) TFT LCD module with a transmissive Normally Black display, a full 24-bit RGB TTL interface for video data, and an integrated capacitive touch panel — a robust and versatile choice for embedded applications requiring a standard, well-characterized widescreen display solution.
Key Strengths
- Standard Widescreen Format: The 480x272 resolution is a widely supported format ideal for industrial and consumer applications.
- Full 24-Bit RGB Interface: Provides true 16.7M color support with a straightforward parallel interface compatible with many processors and FPGAs.
- Integrated Capacitive Touch Panel (I²C): Provides a complete touch display solution without needing an external touch controller.
- Excellent Viewing Angles: The typical 85° viewing angle in all directions ensures consistent image quality from any perspective.
- Detailed Technical Documentation: Comprehensive specs facilitate rapid integration.
Main Design Focus
- The critical design tasks are providing dual power supplies (VDD=3.3V, TP_VDD=3.0V) with proper decoupling, implementing a constant-current LED backlight driver (40mA at ~16V), interfacing the host processor's 24-bit RGB controller with the parallel data bus (R0-R7, G0-G7, B0-B7, DLCK, HSYNC, VSYNC, DE) at approximately 9 MHz DCLK, and initializing and communicating with the GT911 touch controller over the I²C interface (SCL, SDA, /RST, INT).
- Supporting requirements: Connect all ground pins. Follow the specified power-on sequence. Ensure the DISP signal is properly driven for display control.
This module is a reliable and practical choice for engineers designing embedded systems that require a standard widescreen IPS display with touch and a full 24-bit parallel RGB interface.
