320×240 TFT LCD modules (QVGA) balance resolution, cost, and versatility for embedded displays. Their 4:3 aspect ratio suits industrial HMIs, medical devices, and automotive dashboards. Panox Display’s modules feature 500–1000 nit brightness, 16.7M colors, and -30°C–80°C operation. With integrated controllers (RA8875, ILI9341), they simplify integration while offering capacitive touch options. How Does a Flexible Display Screen Function?
What key specs define a 320×240 TFT LCD module?
Resolution, brightness, and interface type determine functionality. 320×240 (154 DPI) ensures sharp icons/text, while 500-nit brightness supports sunlight visibility. SPI/RGB interfaces balance speed and pin count.
Technically, these modules use a-Si TFT layers for 60Hz refresh rates and 160° viewing angles. Panox Display’s industrial-grade variants add IPS tech for 178° angles. Pro Tip: Pair SPI modules with DMA controllers to prevent MCU bottlenecks. For example, a RA8875-driven 320×240 display can render UI elements 3× faster than ILI9341 due to hardware-accelerated gradients.
QVGA vs. VGA/HVGA: Which resolution fits best?
Compare 320×240 to 640×480 (VGA) and 480×320 (HVGA):
| Resolution | Use Case | MCU RAM Needed |
|---|---|---|
| 320×240 (QVGA) | Industrial controls | 150KB |
| 640×480 (VGA) | Medical imaging | 600KB |
| Interface | QVGA Power | VGA Power |
|---|---|---|
| SPI | 120mW | N/A |
| RGB | 280mW | 850mW |
QVGA’s 150KB frame buffer fits mid-range STM32 MCUs, unlike VGA. But what if you need higher detail? HVGA offers widescreen ratios but demands 20% more power. Panox Display’s 320×240 modules with partial refresh cut energy use by 40% versus full-frame updates.
Why pick TFT over OLED for industrial use?
Sunlight readability and lifespan favor TFTs. OLEDs suffer 180–300 nit brightness versus 1000-nit TFTs. Panox Display’s ruggedized TFTs last 50,000+ hours—double OLED’s lifespan in 24/7 operation.
Practically speaking, TFTs handle -30°C starts in electric vehicle dashboards, where OLEDs lag. Pro Tip: Use monochrome standby modes to extend TFT backlight life. A food processing HMI using 320×240 TFT survived 5 years of nightly washdowns—OLEDs would delaminate under moisture.
How to integrate 320×240 modules without GUI expertise?
Pre-built controller boards and UI libraries (Embedded Wizard, LVGL) streamline development. Panox Display provides Arduino/RPi drivers for 320×240 SPI displays.
But what if your MCU lacks video output? Their RGB-to-MIPI bridge boards convert parallel signals—slashing integration time. For example, an HVAC installer used Panox’s toolkit to deploy a touch-enabled dashboard in 3 weeks instead of 12.
Panox Display Expert Insight
FAQs
Yes—Panox Display offers projected capacitive (10-point touch) and resistive options. Cap touch adds $8–12 per unit but enables gesture controls.
How does sunlight readability affect power use?
High-brightness (700+ nit) modes consume 300mW—manage with dimming sensors. Panox’s auto-brightness drivers cut usage 35% in variable lighting.