> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Square RGB TTL TFT Display - 4" 720x720 - with Capacitive Touch - TL040HDS20CT-B1502A

**Type:** Product page · **SKU:** ADA5794 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/square-rgb-ttl-tft-display-4-720x720-with-capacitive-touch-tl040hds20ct-b1502a.html ([markdown](https://core-electronics.com.au/square-rgb-ttl-tft-display-4-720x720-with-capacitive-touch-tl040hds20ct-b1502a.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: TFT Display.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/TFT%20Display

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This is a screen for advanced hackers who like the look of a big rectangular TFT screen with tons of pixels and a capacitive touchscreen overlay. The 4" display has 720x720 16-bit full-color pixels and is an **IPS** display, so the color looks great up to 80 degrees off-axis in any direction.

The TFT driver is ST7701S and uses both TTL RGB 'dot clock' data. Note that unlike the other funky-shaped displays, this particular model *does not require SPI pre-configuration*. It pops up immediately into 'RGB' mode - which makes it a great panel to start with. However, note that despite having a 40-pin connector, it does not have the same pinout as standard 'rectangular' 800x480 (4.3", 5" or 7") or 480x272 (4.3") displays. It's a new kind of beast for sure.

To make stuff light up you'll need a chip that can perform TTL RGB TFT driving, which means a powerful microcontroller such as the ESP32-S3 with octal PSRAM or a computer like a Raspberry Pi (with either direct-DPI connection or an intermediary chip like the ICN6211). Either way, it's not something you can wire up to your Feather or Arduino!

**This is just the display module! No PCB is included!**

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA5794-1.jpg)