Lee Biing-jye, chairman of Taiwan-based LED epitaxial wafer and chip maker Epistar estimates that for a 5-inch LED smartphone panel with about 5,000 mini LEDs for backlighting, the total cost for a mini LED backlighting module is about US$38-45. This is to be compared to the cost of a 5-inch OLED smartphone panel at US$75, making the mini LED backlighting 40-50% cheaper. As long as mini LED-backlit smartphone panels are competitive compared to OLED in display quality, contrast, and thickness, demand for mini LED backlighting will grow fast, noted Lee in the interview.
Digitimes reports that as Samsung Display dominates global supply of OLED smartphone panels, China-based smartphone vendors are willing to adopt mini LED backlighting and have worked with Epistar to undertake trial use. According to the report, Epistar has also developed a mini LED-backlit TV using 24 million mini LED chips to test market response and is developing mini LED fine pixel pitch indoor displays.
Epistar has also become a contract manufacturer of laser epitaxial wafers for making optical communication laser diodes, said the chairman. The company has remodelled 5-6 6-inch MOCVD sets for producing VCSELs (vertical-cavity surface-emitting lasers) which will begin in second-quarter 2018. VCSELs can be used in 3D sensors and proximity sensors of smartphones as well as flood illuminators of smartphone cameras.
Epistar – www.epistar-com
Digitimes - https://digitimes.com