4.0 Inch 320x480 Resolution TFT LCD Module With Capacitive Touch Panel ST7796

Core Features & Functional Highlights of the 320x480 Resolution TFT LCD Module

The HTM-H040A27-SPI-A01C 320x480 Resolution TFT LCD Module is a 4.0-inch vertical screen display engineered for high-performance embedded systems. This 320x480 Resolution TFT LCD Module delivers sharp image quality with 320(RGB)×480 pixels within an active area of 48.96mm × 73.44mm, while its compact outline of 57.00mm × 104.00mm × 8.90mm includes an integrated capacitive touch panel (CTP) using the GT911 driver IC. Powered by the ST7365 driver IC, this 320x480 Resolution TFT LCD Module supports 4-line SPI serial interface, making it compatible with C8051, Arduino, and STM32 platforms. The IPS technology provides ultra-wide viewing angles of U80/D80/L80/R80 (CR>10), ensuring consistent colors from any direction. With 500 cd/m² typical brightness (without TP) and 450 cd/m² (with CTP), this 320x480 Resolution TFT LCD Module remains readable even under strong ambient light. The module operates at VDD=3.3V or 5V (5V recommended for optimal backlighting) and includes a tearing effect (TE) pin for smooth frame synchronization. Industrial-grade reliability is guaranteed with an operating temperature range of -30℃ to +80℃ and storage from -30℃ to +80℃. The 320x480 Resolution TFT LCD Module also features a built-in backlight with 30,000 hours typical LED lifetime at 25℃, consuming 160mA typical forward current. Whether for prototyping or mass production, this 320x480 Resolution TFT LCD Module combines vivid optics, responsive touch, and robust construction into one cohesive package.

Specification of 320x480 Resolution TFT LCD Module

Key Application Scenarios for the 320x480 Resolution TFT LCD Module

The versatility of this 320x480 Resolution TFT LCD Module enables deployment across multiple industries. Below is a detailed breakdown:

In every scenario, this 320x480 Resolution TFT LCD Module acts as the primary visual and touch interface, delivering consistent performance where lesser displays would fail.

Technical Solutions for Buyer Concerns Using the 320x480 Resolution TFT LCD Module

Buyers often have specific technical worries regarding integration, durability, and compatibility. Here is how this 320x480 Resolution TFT LCD Module directly addresses those concerns:

Concern 1: "Will the 320x480 Resolution TFT LCD Module work in extreme temperatures?"

• Technical Solution: Yes. This 320x480 Resolution TFT LCD Module is tested for operation from -30℃ to +80℃ and storage from -30℃ to +80℃ (see Section 7-1). Unlike commercial-grade displays that fail below 0℃, the ST7365 driver and LCD chemistry maintain response times. Reliability tests include 120 hours at +80℃ (high temp storage), -30℃ (low temp storage), +70℃ operating, and +60℃/90%RH humidity. After these tests, the 320x480 Resolution TFT LCD Module returns to normal function once temperature normalizes.

Concern 2: "How do I prevent electrostatic damage during assembly?"

• Technical Solution: This 320x480 Resolution TFT LCD Module includes ESD protection specifications: Contact ±4kV, Air ±8kV (non-operating, 150pF/330Ω). Section 8-2 provides detailed anti-static handling instructions: remove protective film slowly at a 30° angle, use ion blowers, maintain >50% RH humidity, wear grounded wrist straps and conductive shoes. The module uses C-MOS LSI drivers, so keep unused inputs connected to Vdd or Vss. These measures make this 320x480 Resolution TFT LCD Module safe for manual assembly lines.

Concern 3: "Is the 320x480 Resolution TFT LCD Module compatible with my MCU?"

• Technical Solution: Absolutely. This 320x480 Resolution TFT LCD Module supports 4-line SPI serial interface with standard pins: TFT-CSX (chip select), TFT-RES (reset), TFT-AO (data/command), TFT-SDI/MOSI (data in), TFT-SCK (clock), and TFT-SDO/MISO (data out). Operating voltage accepts 3.3V or 5V (5V recommended for best backlight). The manual includes complete initialization code (Section 9) for ST7365. Compatible platforms: C8051, Arduino, STM32. No level shifters are needed when running at 3.3V.

Concern 4: "Can the display be read in sunlight or from side angles?"

• Technical Solution: Yes. This 320x480 Resolution TFT LCD Module combines 500 cd/m² brightness (without TP) or 450 cd/m² (with CTP) with IPS technology (U80/D80/L80/R80, CR>10). Standard TN displays lose contrast at 30° off-axis, but this module maintains >10:1 contrast ratio up to 80°. The 500 cd/m² luminance overcomes 50,000 Lux sunlight. Contrast ratio is 1200:1 typical (1000:1 min). White chromaticity is 0.306±0.03. For outdoor applications, this 320x480 Resolution TFT LCD Module delivers.

Concern 5: "How reliable is the SPI communication over longer wires?"

• Technical Solution: The 320x480 Resolution TFT LCD Module specifies detailed AC timing (Section 6): SCL cycle time 66ns (write), data setup time 10ns, data hold time 10ns. For noisy environments, the CSX chip select can be permanently grounded, and RESX has priority over CSX. The module includes a tearing effect (TE) pin for frame synchronization. If uncontrolled power-off occurs (battery removal), this 320x480 Resolution TFT LCD Module simply goes blank and recovers on next power-on sequence without damage.

Concern 6: "What about image retention and long-term reliability?"

• Technical Solution: Section 8-1 explicitly addresses image retention prevention. For this 320x480 Resolution TFT LCD Module, do not display fixed patterns for over 2 minutes. Use black images or moving screen savers. The LED backlight has 30,000 hours typical lifetime (defined as time until brightness falls below 50% at 25℃). Actual testing shows only 8% brightness decay after 5,000 hours. The module also passes vibration (8-33.3Hz, 1.0mm stroke, 2 hours per axis) and shock (980m/s², 6ms half-sine) tests.

By choosing this 320x480 Resolution TFT LCD Module, buyers gain a display that solves real-world integration challenges with documented, test-proven specifications.