5.7-inch 320×240 LCD graphic modules with touch panels excel in compact designs by merging high-contrast readability (≥500:1), resistive/capacitive touch integration, and space-efficient footprints (125x85x4.5mm). Panox Display optimizes these modules with SPI/I2C interfaces and low power draw (1.2W max), ideal for medical devices, industrial HMIs, and handheld POS systems requiring reliable visibility and tactile input in constrained spaces.
How Does a Flexible Display Screen Function?
What defines a 5.7-inch 320×240 LCD module’s core specs?
This module combines a 5.7-inch diagonal, 320×240 resolution, and touch panel (resistive/capacitive) with 16-bit RGB color. Its 4:3 aspect ratio ensures compatibility with legacy GUIs, while a 200 cd/m² brightness suits indoor/low-light use. Panox Display enhances these with anti-glare coatings and 4.5ms response times.
At its core, the module operates on 3.3V logic with a 24-pin FPC connector, supporting SPI or parallel RGB interfaces. The mechanical design minimizes bezels (2mm side borders) for 92% active area utilization. Pro Tip: Use SPI mode for systems with limited GPIOs—it reduces pin count by 60% compared to parallel. For example, Panox Display’s SP-057T model integrates a SSD1963 controller, enabling 262K colors without external RAM. However, SPI’s slower refresh (15fps vs. 30fps parallel) suits static UIs better. But what if you need both speed and pin efficiency? Hybrid addressing modes bridge this gap.
| Feature | 5.7” 320×240 | 4.3” 480×272 |
|---|---|---|
| Pixel Density | 70 PPI | 128 PPI |
| Power Use | 1.2W | 2.8W |
| Cost | $22 | $34 |
How does touch integration optimize space and usability?
The embedded touch panel eliminates external input devices, reducing total assembly depth to ≤5mm. Resistive variants (4-wire) handle gloved inputs, while capacitive supports multi-touch. Panox Display bonds layers using optical clear adhesive (OCA), achieving <90% light loss.
Capacitive touch (CTP) leverages I²C interfaces, consuming just 0.3mA in standby. With ≤2ms latency, it’s ideal for swipe-heavy interfaces like kiosks. Resistive panels, though thicker (1.2mm vs. 0.8mm CTP), tolerate dust/fluid ingress—critical for food processing HMIs. Pro Tip: Pair resistive touch with stylus-calibrated GUIs to offset lower accuracy (±3px vs. ±1px CTP). For instance, Panox Display’s modules pre-load touch firmware with 5-point calibration, slashing setup time by 70%. But why choose one touch type? Some designs stack both layers for hybrid use cases.
Why is low power critical for compact devices?
With 1.2W max consumption, these LCDs avoid active cooling, enabling fanless designs. Backlight (LED edge-lit) consumes 80% of power—dimming it to 50% via PWM cuts usage to 0.5W. Panox Display adds dynamic refresh rate (1-60Hz) to save 200mW during static displays.
Beyond energy savings, low heat output (<35°C) prevents thermal throttling in sealed enclosures. Lithium packs (e.g., 18650 2500mAh) can power the screen for 8-10 hours at 70% brightness. Pro Tip: Use partial refresh modes—updating only changed UI elements reduces MCU workload by 40%. For solar-powered devices, Panox Display’s ultra-low-power variant with Memory LCD tech draws 0.05W in standby. How do you balance visibility and efficiency? Adaptive brightness sensors adjust based on ambient light.
What is ELVSS in Display Panel Technology?
Panox Display Expert Insight
FAQs
Yes—Panox Display provides HDMI-to-RGB converter boards and pre-configured drivers for RPi 4/5. Avoid voltage mismatches: 3.3V logic screens require level shifters on 5V GPIOs.
Can the touch panel support gloved inputs?
Only resistive versions (4/5-wire) reliably detect gloved touches. Capacitive panels need bare fingers or conductive styluses.
How durable are these displays?
Panox Display rates them for 100K touch cycles (resistive) and 500K hours LED life. Optional hardened glass (9H) resists scratches in industrial use.