Universal Display Corporation (UDC) has developed a new AMO
LED structure, which is a WOLED-RGB hybrid structure. It uses large blue sub-pixels and large yellow sub-pixels that are divided into three regions - unfiltered and red and green filters.
This structure is easier to deposit than a true RGB AMOLED (requiring a very fine layout of red, green, and blue sub-pixels), and the aperture ratio is further improved than that of a WOLED structure (as used in LG OLED TVs), thereby increasing the life of the display. And color gamut.
As shown above, the deposition uses a "smart" mask opening that deposits multiple sub-pixels simultaneously - but not in the same pixel.
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