TXW397087B0-HY 3.97" 480×800 Industrial TFT Display Module

Technical Performance Advantage Overview

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100% Lead-Free Process | RoHS & REACH Full Compliant | Industrial-grade Wide-Temperature Validation Passed

1. Core System Architecture & Pixel Domain Parameters

This 3.97-inch integrated TFT + CTP module adopts a transmissive normally black active matrix driving architecture, with the driving IC built as Sitronix ST7701SN, supporting 480 segment outputs and 800 common outputs. The RGB vertical stripe pixel arrangement delivers an equal 0.108mm pixel pitch for both horizontal and vertical directions, with a total pixel count of 480*3RGB(H) × 800(V). Users can unlock 16.7M full color gamut rendering via software configuration, eliminating visible pixel grain even under close viewing distance.
The active display (A.A) area of the panel measures 51.84mm(H) × 86.40mm(V), delivering full all-viewing (ALL Viewing) performance with zero color deviation and brightness shift across all viewing angles. The bare LCM outline dimension is 56.34mm(W) × 95.70(H) × 2.10mm(T), while the complete pre-bonded LCM + G+FF CTP module reaches 58.76mm(W) × 103.68mm(H) × 3.35mm(T). All unspecified structure edges follow 0.15×0.15mm chamfer standard, unmarked general tolerance is locked at ±0.2mm, and all critical controlled dimensions follow CPK≥1.33 process management rule to ensure 99.7% batch consistency in mass production.

2. Absolute Limit Tolerance & Mechanical Strength Parameters

The module's environmental tolerance boundary is calibrated as follows: the LCM power-on operating temperature range is -20°C to +70°C, the non-powered long-term storage temperature range extends from -30°C to +80°C. For the G+FF touch panel under 20%~90%RH non-condensing humidity environment, the operating temperature also covers -20°C to +70°C, storage temperature tolerance reaches -30°C to +80°C, with maximum environmental humidity tolerance up to 90%RH.
The G+FF cover glass mechanical performance strictly meets industrial-level strength standards:

• Surface compressive stress CS ≥ 500MPa
• Stress layer depth DOL ≥ 10μm
• 4-point bending strength 4PB ≥ 450MPa
• Drop test: 64g steel ball dropped from 45cm height at the central impact point for 3 consecutive times, no cracking allowed
• Back film dyne value ≥ 30, cover printing dyne value ≥ 32
• TP surface ink adhesion meets 4B classification requirement
• Maximum TP warpage ≤ 0.3mm
  All parameters fully eliminate daily industrial scratch and breakage risks for portable handheld devices.
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3. Electrical Characteristic Specifications

• TFT I/O domain supply voltage range: 2.5V ~ 3.3V, typical value at 2.8V
• Edge-lit backlight system integrates 8 white LED chips, forward conduction voltage range VF is 2.8V ~ 3.2V, typical forward operating current IF is 160mA
• Rated LED lifespan: defined as continuous runtime when the module brightness drops to 50% of initial value under IL=20mA/LED, reaching 30,000 hours in total. Note that the LED lifespan will non-linearly decrease if the single LED operating current is higher than 25mA
• The 40-pin LCM FPC embeds the complete 24-bit RGB interface signal lines: including 8-bit R data (R0~R7), 8-bit G data (G0~G7), 8-bit B data (B0~B7), PCLK pixel clock, HSYNC horizontal synchronization, VSYNC vertical synchronization, active low reset pin, SPI serial control signals, backlight anode and cathode power pins, no extra interface adapter circuit is needed for most mainstream industrial SoC platforms. The front and back sides of the FPC are fully coated with 0.05mm thick conductive double-sided EMI shielding tape, realizing full electromagnetic radiation suppression to meet strict industrial EMC requirements.
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4. G+FF Touch Dedicated Parameters

The integrated G+FF projected capacitive touch is driven by GT1151QM touch IC, communicating via standard I2C interface. The 6 dedicated touch pins are fully defined as follows: Pin 1 for touch power ground, Pin 2 for touch I2C SCL clock, Pin 3 for touch I2C SDA data, Pin 4 for touch interrupt signal, Pin 5 for 2.8V touch power supply, Pin 6 for touch hardware reset pin. The touch system maintains stable multi-point sampling performance across the full wide-temperature operating range, no false touch or touch drift will occur in low temperature or light glove operation scenarios.

5. Industrial-Grade Reliability Validation Results

All 6 standard reliability test items are fully passed, no failures such as missing pixel segments, short circuit, blurry display, non-display, abnormal color deviation, liquid crystal leakage, low-temperature bubbles inside liquid crystal cell, edge sealing peeling or frame rainbow pattern are allowed after all testing cycles:

1. High temperature storage test: continuously static stored at +80°C for 96 hours
2. Low temperature storage test: continuously static stored at -30°C for 96 hours
3. High temperature power-on operation test: continuously full-frame running at +70°C for 96 hours
4. Low temperature power-on operation test: continuously full-frame running at -20°C for 96 hours
5. High temperature high humidity storage test: continuously static stored in 60°C × 90%RH non-condensing environment for 96 hours
6. Thermal and cold shock test: under non-powered static state, completing 10 cycles of temperature switching between -20°C (30min dwell) and +70°C (30min dwell)
   The module has no extra export control restriction, all RoHS and REACH compliance documentation is available, providing solid technical foundation for global industrial portable device product development.