Tags & Keywords
#TFT-LCD #TN #RGB #4.3inch #480x272 #16.7MColors #WideScreen #COG #Transmissive #CostSensitive #EmbeddedSystem #IndustrialControl #BasicDisplay #MCUInterface #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LSR043T06-R-V1, a 4.3-inch wide-screen transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a resolution of 480(RGB)x272, 16.7 million colors, and a TN panel, this module is a variant designed with cost optimization in mind. While similar to the LSR043T04-R-V2, it utilizes an 8-bit RGB input data interface instead of 24-bit. With its core RGB interface and key specifications, it serves as an economical choice for industrial controls, consumer electronics, and other embedded applications where full 24-bit color depth is not a strict requirement.
Key Specifications
- Brand & Model: LESSON Smart Display LSR043T06-R-V1
- Screen Size: 4.3 inches (diagonal)
- Active Area: 95.04 mm (H) × 53.856 mm (V)
- Driver IC: NV3047E (as indicated in the Physical Features section)
- Display Technology: Transmissive type a-Si TFT-LCD
- Display Mode: Active matrix TFT, Transmissive, TN (Twisted Nematic)
- Module Type: TFT-LCD module with driver circuit and backlight unit.
- Display Resolution: 480(RGB) × 272 pixels
- Display Colors: Up to 16.7 Million Colors (via internal driver IC processing of 8-bit input)
- Module Outline Dimensions: 100.16 mm (H) × 61.856 mm (V) [Panel Size]
- Interface: RGB Parallel Interface with 8-bit Input Data.
- Input Data: 8 bit RGB (Contrast with 24-bit in T04 model)
- Viewing Direction: TN
- Supply Voltages:
- VCC (Main Power): 3.0V ~ 3.6V (Typical: 3.3V)
- IOVCC (I/O Power): 1.65V ~ VCC
- DC Electrical Characteristics: Same as T04 model.
- RGB Timing Characteristics (Key Difference):
- DCLK Frequency (Fclk): 24-30 MHz (Typ. 27 MHz) – Significantly higher than T04 model.
- HSYNC Period (Th): 1491 DCLK – Much larger due to higher clock.
- VSYNC Period (Tv): 292 H (Same as T04).
- Porch Settings: Similar structure but scaled for higher clock.
- Backlight: LED backlight (Pins: LEDA, LEDK)
- Optical Characteristics (Typical):
- Luminance: TBD (To Be Determined) in provided spec.
- Contrast Ratio: 700:1
- Response Time (Tr+Tf): 20 ms
- Viewing Angle (CR>10): 80° (Top/Bottom), 60°/70° (Left/Right)
- Environmental Compliance: RoHS Compliant
General Description
The LSR043T06-R-V1 is functionally similar to the T04 model but is optimized for a different use case. The primary difference is the 8-bit RGB input data, which reduces the number of data lines required from the host (likely using 3-3-2 or similar bit weighting for R,G,B). To compensate and maintain the data throughput for the same resolution, it operates at a much higher pixel clock frequency (~27 MHz vs. ~9 MHz). The pin description table shows that pins 13-28 are marked as "NC" (No Connection), reflecting the reduced data bus width compared to the 24-bit version.
Key Differentiator from LSR043T04-R-V2
- Data Bus: 8-bit vs. 24-bit.
- Pixel Clock: ~27 MHz vs. ~9 MHz.
- Host Interface: Fewer GPIOs needed, but requires higher speed signal integrity.
Application Scenarios
- Cost-Sensitive Industrial Controls: Where host processor GPIO is limited or cost is key.
- Basic Consumer Electronics: Devices where 8-bit color is sufficient.
- Embedded Projects: For microcontrollers with fewer available I/O pins.
- Legacy System Upgrades: Where interface compatibility with 8-bit systems is needed.
Conclusion
The LESSON Smart Display LSR043T06-R-V1 provides a cost- and pin-count-optimized alternative to the full 24-bit RGB module. Designers must be aware of the higher clock speed requirement and ensure their host system can meet the timing. It is a practical solution for applications where the trade-off between color depth, I/O count, and cost is favorable.
