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Display Engineer
Guides

Display engineering guides

Selection guides, head-to-head comparisons and troubleshooting notes, reviewed by the engineers who support customer bring-ups.

Troubleshooting

ILI9341 vs ST7789: How to Tell Which Controller Your Display Has

Boards sold under the same name ship with ILI9341 or ST7789 controllers. How to identify yours by symptoms or by reading the ID register, and the settings that fix white screens and wrong colours.

Oct 11, 2026
Guide

1.28-inch Round Display with ESP32 (GC9A01): Wiring, Libraries and Round-UI Tips

How to drive a 240×240 GC9A01 round TFT from an ESP32: SPI wiring, TFT_eSPI / LovyanGFX / ESP-IDF setup, realistic frame rates, and layout rules for circular screens.

Oct 11, 2026
Comparison

Optical Bonding vs Air Bonding: Which Does Your Display Need?

How bonding affects sunlight readability, condensation, ruggedness and cost, and when the air gap is good enough.

Oct 10, 2026
Guide

How to Choose a Display for ESP32-S3 (SPI, QSPI, RGB)

Which interface, resolution and touch controller work best with ESP32-S3, with memory-bandwidth limits explained.

Oct 10, 2026
Guide

Custom TFT Display: MOQ, Tooling Cost and Lead Time Explained

What really drives custom display cost and minimum order quantities, and how to get a custom fit without a custom glass.

Oct 10, 2026
Guide

How Bright Does a Sunlight-Readable Display Need to Be?

Nits, contrast and reflections: what actually makes a TFT readable outdoors.

Oct 10, 2026
Troubleshooting

TFT Display White Screen: 9 Causes and How to Fix Them

A systematic checklist for the most common bring-up failure: backlight on, nothing drawn.

Oct 10, 2026
Comparison

MIPI DSI vs LVDS vs eDP: Which Display Interface Should You Use?

How the three high-speed display interfaces differ in bandwidth, cable length, cost and bring-up effort, and how to choose for your SoC.

Oct 10, 2026