ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,482,416, issued on Nov. 25, was assigned to SAMSUNG DISPLAY Co. LTD. (Gyeonggi-Do, South Korea).
"Organic light emitting display (OLED) device and method expressing desired black and white grayscales in areas of different pixel densities" was invented by Si Beak Pyo (Yongin-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display device includes: a pixel unit including a first area including first pixels disposed with a first density and a second area including second pixels disposed with a second density smaller than the first density; a power supply for supplying a first power voltage commonly supplied to cathodes of first light emitti...