88‐6: Camera Under Panel (CUP) Applied in 4K Ultra‐High‐Definition OLED Medium‐Size Panel

We developed a 4K Real RGB ultra HD Camera Under Panel (CUP) medium‐sized display OLED Panel. Due to the Real RGB arrangement, two R/G/B light‐emitting units in CUP are driven by one pixel circuit. Compared with the SPR arrangement usually applied to small‐sized display, the pixel circuits density is doubled, the wiring space in CUP border area is compressed, and the space required in border is large. We set two pixel circuit regions and added wires connected pixel circuit areas, narrowed the size of the border area to 1.5mm, the camera hole dimeter is 3 mm，the CUP hole dimeter is 6 mm. Due to the pixel circuits placed in the border area of CUP, the opening rate of Camera hole reaches more than 85%, the transmittance is 13.8% (550nm), and the luminance ratio between CUP and AA area is close to 1:1, it has a good display performance.