LS043I16-L-V1 4.3 Inch TFT-LCD Module 800x480 16.7M Colors
【LS043I16-L-V1】4.3寸LCD显示模组 分辨率800*480 驱动ICST72611 规格书Product Keywords: 4.3″ LCD Module, COG+FPC+B/L, 800(RGB)×480 Resolution, 16.7M Colors, Transmissive a-Si TFT-LCD, IPS, LVDS Interface (3-Lane/4-Lane), ST72611 Driver IC, White LED Backlight (5S2P, IF=40mA, Vf=15V TYP), -20°C to +70°C Operation, Revision 1.0.
1. Executive Summary & Product Positioning
The LS043I16-L-V1 is a 4.3-inch transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module, developed by 立信(万安)智显科技有限公司 (Lesson Smart Display Technology Co., Ltd). The module 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 800(RGB)×480, the panel can display up to 16.7M colors. This module features a COG (Chip-on-Glass) + FPC + B/L (Backlight) construction and is designed for a wide range of applications requiring a medium-sized, high-quality display. [1](@index-ref?id=1)
Product Positioning: This 4.3-inch module is ideally suited for industrial terminals, medical devices, in-vehicle displays, portable instruments, and other embedded systems that require a bright, vivid display with wide viewing angles.
2. Detailed Product Overview & Architecture
The module's architecture integrates the display into a single, easy-to-integrate package. The primary components include:
- TFT-LCD Panel: 4.3-inch diagonal, a-Si TFT active matrix, transmissive, IPS (In-Plane Switching). Resolution is 800(RGB) × 480 pixels.
- Driver Circuit: The module integrates the ST72611 driver IC, communicating via LVDS (Low-Voltage Differential Signaling) interface.
- Backlight Unit (B/L): A white LED backlight. The typical driving condition is IF=40mA, Vf=15V (TYP), with a 5S2P (5 serial, 2 parallel) LED configuration.
- Mechanical Construction: COG (Chip-on-Glass) + FPC + B/L.
- Interface: The module communicates via a 40-pin FPC connector. The display interface is LVDS (3-Lane / 4-Lane).
- Display Mode: Transmissive, IPS.
- Viewing Direction: Free (IPS) — ALL O'Clock.
- RoHS: All materials are compliant with RoHS standards.
3. Exhaustive Technical Specifications
3.1 General & Mechanical Specifications
| Item | Specification |
| Display Size (Diagonal) | 4.3 inches |
| Resolution (Dots) | 800(RGB) × 480 |
| Display Technology | Active Matrix TFT, Transmissive, a-Si, IPS |
| Module Construction | COG+FPC+B/L |
| Color Depth | 16.7M Colors |
| Input Data Interface | LVDS (3-Lane / 4-Lane) |
| Driver IC | ST72611 |
| Display Mode | Transmissive, IPS |
| Viewing Direction | Free (IPS) |
| Backlight Type | White LED (5S2P) |
| Module Outline (H×V×D) | 105.46 × 67.11 × 3.06 mm |
| Active Area (H×V) | 95.04 × 53.86 mm |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Environmental Compliance | RoHS |
3.2 Absolute Maximum Ratings
Stress beyond those listed may cause permanent damage to the device.
| Item | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply voltage | VCC | -0.3 | 3.6 | V |
| Supply voltage | IOVCC | -0.3 | 3.6 | V |
| Operating temperature | TOPR | -20 | 70 | °C |
| Storage temperature | TSTR | -30 | 80 | °C |
3.3 Electrical Characteristics
3.3.1 Recommended DC Characteristics
Condition: Ta=25°C.
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply voltage | VCC | 2.5 | 2.8 | 3.3 | V |
| Supply voltage | IOVCC | 1.65 | 1.8 | 3.3 | V |
| Input Voltage (L level) | VIL | 0 | — | 0.3×IOVCC | V |
| Input Voltage (H level) | VIH | 0.7×IOVCC | — | IOVCC | V |
3.3.2 Backlight LED Characteristics
The backlight consists of a 5 Serial 2 Parallel (5S2P) configuration of white LEDs. The typical driving condition is IF=40mA, Vf=15V (TYP).
| Parameter | Symbol | Typ | Unit |
|---|---|---|---|
| Forward Voltage | Vf | 15 | V |
| Forward Current | IF | 40 | mA |
| LED Configuration | — | 5S2P | — |
3.4 Interface Pin Assignment (40-Pin FPC)
The module communicates via a 40-pin FPC connector. The interface is LVDS (3-Lane / 4-Lane).
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | NC | — | No connection |
| 2 | VDD | P | Power supply |
| 3 | VDD | P | Power supply |
| 4 | NC | — | No connection |
| 5 | RESET | I | Global reset pin. When GRB is "L", internal initialization procedure is executed. |
| 6 | STBYB | I | L: Standby mode (Default) / H: Normal display mode |
| 7 | GND | P | Ground |
| 8 | RXIN0- | I | LVDS input lane: RX0N |
| 9 | RXIN0+ | I | LVDS input lane: RX0P |
| 10 | GND | P | Ground |
| 11 | RXIN1- | I | LVDS input lane: RX1N |
| 12 | RXIN1+ | I | LVDS input lane: RX1P |
| 13 | GND | P | Ground |
| 14 | RXIN2- | I | LVDS input lane: RX2N |
| 15 | RXIN2+ | I | LVDS input lane: RX2P |
| 16 | GND | P | Ground |
| 17 | RXCLKIN- | I | LVDS clock lane: CLKN |
| 18 | RXCLKIN+ | I | LVDS clock lane: CLKP |
| 19 | GND | P | Ground |
| 20 | NC | — | No connection |
| 21 | NC | — | No connection |
| 22 | GND | P | Ground |
| 23 | NC | — | No connection |
| 24 | NC | — | No connection |
| 25 | GND | P | Ground |
| 26 | NC | — | No connection |
| 27 | NC | — | No connection |
| 28 | NC | — | No connection |
| 29 | NC | — | No connection |
| 30 | GND | P | Ground |
| 31 | LEDK | P | Power for LED backlight cathode |
| 32 | LEDK | P | Power for LED backlight cathode |
| 33 | U/D | I | L: From right to left / H: From left to right (Default) |
| 34 | L/R | I | L: From down to up / H: From up to down (Default) |
| 35 | XR | I | TP X+ |
| 36 | YD | I | TP YU+ |
| 37 | XL | I | TP X- |
| 38 | YU | I | TP YU- |
| 39 | LEDA | P | Power for LED backlight anode |
| 40 | LEDA | P | Power for LED backlight anode |
3.5 LVDS Interface Timing Characteristics
Condition: PVDD = VDD = VDDI = 3.3V, AGND = 0V, TA = 25°C.
| Item | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Clock Frequency | RXFCLK | 23 | 25 | 27 | MHz |
| Input Data Skew Margin | TRSKM | 400 | — | — | ps |
| Clock High Time | TLVCH | 4/(7×RXFCCLK) | 4/(7×RXFCCLK) | 4/(7×RXFCCLK) | ns |
| Clock Low Time | TLVCL | 3/(7×RXFCCLK) | 3/(7×RXFCCLK) | 3/(7×RXFCCLK) | ns |
| PLL Wake-up Time | TENPLL | — | — | 150 | us |
LVDS Spread Spectrum Clocking (SSC) Tolerance
| Item | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|
| Modulation Frequency | SSCMF | — | 100 | KHz |
| Modulation Rate | SSCMR | — | ±3 | % |
3.6 Electro-Optical Characteristics
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Horizontal Viewing Angle (Left) | Θ3 | CR > 10 | — | 80 | — | Deg. |
| Horizontal Viewing Angle (Right) | Θ9 | CR > 10 | — | 80 | — | Deg. |
| Vertical Viewing Angle (Top) | Θ12 | CR > 10 | — | 80 | — | Deg. |
| Vertical Viewing Angle (Bottom) | Θ6 | CR > 10 | — | 80 | — | Deg. |
| Contrast Ratio | CR | Θ = 0° | — | 1200 | — | — |
| Color Gamut | NTSC | CIE1931, Θ = 0° | — | 50 | — | % |
| White Chromaticity (Wx) | Wx | Θ = 0° | Typ-0.03 | 0.311 | Typ+0.03 | — |
| White Chromaticity (Wy) | Wy | Θ = 0° | Typ-0.03 | 0.338 | Typ+0.03 | — |
| Response Time (Tr+Td) | Tr+Td | Ta = 25°C, Θ = 0° | — | 30 | — | ms |
3.7 Mechanical Dimensions & Design Notes
3.7.1 Key Mechanical Dimensions
| Item | Specification |
| LCM Outline (H×V) | 105.46 × 67.11 mm (±0.2) |
| LCM Total Thickness | 3.06 ± 0.2 mm |
| LCD & CF Width | 98.64 mm |
| Active Area (AA) Width | 95.04 mm |
| LCD Thickness | 0.8 mm |
| POL Thickness | 0.15 mm |
| FPC + PI Reinforcement Thickness | 0.3 mm |
| Component Area Height | 1.3 mm MAX |
| FPC Pin Pitch | 0.5 mm |
| General Tolerance | ±0.2 mm |
3.7.2 Design Notes from Documentation
- Display Type: Main LCD: Transmissive, IPS.
- Main LCD Driver IC: ST72611.
- Backlight: 5 Serial 2 Parallel (5S2P) LED configuration.
- Mechanical Design Recommendations:
- Suggested housing visible area (shell opening) should be 0.3mm smaller than the VA (Viewing Area) on each side.
- Suggested housing foam opening should be 0.6mm larger than the VA on each side.
- TP edge must not contact any metal conductor.
- General tolerance for unspecified dimensions: ±0.2mm.
- Scan Direction Control:
- U/D (Pin 33): L=From right to left, H=From left to right (Default).
- L/R (Pin 34): L=From down to up, H=From up to down (Default).
- RoHS: All materials are ROHS compliant.
4. Application Guidelines & Critical Notes
- Power Supply: The module requires VCC (2.8V typical) and IOVCC (1.8V typical) power supplies. Ensure the power supplies are stable and have low ripple.
- Interface: This module uses LVDS (3-Lane or 4-Lane) protocol. The host processor must be configured for the appropriate LVDS data format (VESA or JEIDA).
- Backlight Driver: A constant current driver is required to supply the backlight via the LEDA (Pins 39, 40) and LEDK (Pins 31, 32). The required driving condition is 40mA total current at 15V typical forward voltage (5S2P configuration).
- Reset: Ensure the RESET pin (Pin 5) is driven low for a sufficient pulse width to initiate a proper reset before initializing the display.
- Standby Mode: The STBYB pin (Pin 6) controls the module power mode: L=Standby (Default), H=Normal display mode.
- LVDS Clock: The LVDS receiver clock frequency is 23MHz to 27MHz (25MHz typical). The PLL wake-up time is up to 150μs.
- Spread Spectrum Clocking (SSC): The LVDS receiver supports SSC with modulation frequency up to 100KHz and modulation rate up to ±3%.
- Mechanical Mounting: Follow the mechanical design guidelines for the enclosure and foam opening to ensure proper fit and avoid damage to the glass and FPC.
- Operating Temperature: The module operates from -20°C to +70°C. Satisfactory display performance is only guaranteed within this range.
- Storage: Store the module in a clean environment, free from dust, moisture, and direct sunlight. Storage temperature range is -30°C to +80°C.
- Handling Precautions: Handle the module with care to avoid damage to the glass or FPC. Ground yourself to prevent electrostatic discharge (ESD).
5. Conclusion & Design-In Support
The LS043I16-L-V1 from Lesson Smart Display Technology is a 4.3-inch IPS TFT-LCD module with an LVDS interface. It features an 800×480 resolution, 16.7M colors, a high contrast ratio of 1200:1 typical, wide viewing angles (80° in all directions), and a robust mechanical design. It is a reliable display solution suitable for a wide variety of industrial and embedded display applications.
For successful design-in, engineers should:
- Obtain and review the complete, official Product Specification (Revision 1.0, dated 2026-03-22) for the full mechanical drawing and the driver IC (ST72611) datasheet for detailed initialization and timing parameters.
- Design a clean 2.8V power supply for the LCD. Design a backlight constant current driver circuit capable of delivering 40mA at up to 15V.
- Configure the host processor's LVDS interface to match the data format (VESA or JEIDA) and timing specifications detailed in this datasheet.
- Follow the mechanical design guidelines for the enclosure and foam opening to ensure proper fit and avoid damage.
- Contact the manufacturer for evaluation modules, sample requests, and further technical support during the design-in phase.
This module is designed to provide a reliable and vibrant display solution for a wide array of applications.
