公开(公告)号：US20220059803A1

公开(公告)日：2022-02-24

申请号：US17398442

申请日：2021-08-10

Applicant: Applied Materials, Inc.

Inventor： Chung-Chih WU ,  Hoang Yan LIN ,  Guo-Dong SU ,  Zih-Rou CYUE ,  Li-Yu YU ,  Wei-Kai LEE ,  Guan-Yu CHEN ,  Chung-Chia CHEN ,  Wan-Yu LIN ,  Gang YU ,  Byung-Sung KWAK ,  Robert Jan VISSER ,  Chi-Jui CHANG

IPC: H01L51/52 ,  G09F9/33 ,  H04N13/302

Abstract: The present disclosure is generally related to 3D imaging capable OLED displays. A light field display comprises an array of 3D light field pixels, each of which comprises an array of corrugated OLED pixels, a metasurface layer disposed adjacent to the array of 3D light field pixels, and a plurality of median layers disposed between the metasurface layer and the corrugated OLED pixels. Each of the corrugated OLED pixels comprises primary or non-primary color subpixels, and produces a different view of an image through the median layers to the metasurface to form a 3D image. The corrugated OLED pixels combined with a cavity effect reduce a divergence of emitted light to enable effective beam direction manipulation by the metasurface. The metasurface having a higher refractive index and a smaller filling factor enables the deflection and direction of the emitted light from the corrugated OLED pixels to be well controlled.