Mini RGB LED displays still too difficult to make

DigiTimes Research notes displays with mini RGB LEDs are starting to find their way to the marketplace. These are considered as next-generation displays, as they offer better image quality, but the downside is they're more expensive and consume more energy.

Fine-pitch displays entail combined use of red, green and blue mini LED chips of 5mil x 9mil in size at a basic yield rate of 99.99%, while for backlighting applications, only single-light - mostly blue-light - mini LED of slightly larger sizes are used and the required basic yield rates are lower.

The site explains RGB fine-pitch displays are more difficult to manufacture than backlighting applications that use mini LED. The main problem is that the process to transfer mini LED chips in mass is not yet mature. The mini LED chips need to be placed very precisely, and it also takes a long time to repair defect.

Samsung recently showed a 146-inch screen with mini RGB LED technology, but it costs $300,000.