Winstar, established in 1998 in Taiwan, is a display producer, that makes LCDs and PMOLED displays. Winstar has two 2.5-Gen PMOLED production lines.

Winstar offers a range of monochrome and color PMOLED displays, and is developing flexible OLEDs and OLED lighting panels and also transparent PMOLED displays.

In 2022, Winstar became a public company followin an IPO at Taiwan's OTC (ticker :6916).

Wintek, established in 1990 in Taiwan produces touch panels and LCD displays (with factories in China, Taiwan and India).

In 2011 it was reported that Wintek is building a 4-Gen LTPS OLED fab in Southern Taiwan in collaboration with Tianma, but this fab never materialized.

WiseChip Semiconductor Inc (WSI) was established in 2005 in Taiwan. The company develops and produces PMOLED displays. In 2009 WiseChip acquired fellow PMOLED maker Univision.

Wisechip says it's the world's second largest PMOLED maker, and the company now enjoys a surge in PMOLED demand (we hear the same from other PMOLED makers). The company currently offers glass-based PMOLEDs ranging from 0.33" to 5.5".

In May 2020 we posted an interview with Wisechip's VP of R&D.