公开(公告)号：US10658441B2

公开(公告)日：2020-05-19

申请号：US16114039

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Kwang Ohk Cheon ,  Cheng Chen ,  Chien Lu ,  Chih-Lei Chen ,  Chin Wei Hsu ,  Hui Lu ,  KiBeom Kim ,  Lun Tsai ,  Meng-Huan Ho ,  Nai-Chih Kao ,  Pei-Ling Lin ,  Rui Liu ,  Shan-Jen Yu ,  Wendi Chang ,  Yusuke Fujino

IPC: H01L27/32 ,  H01L51/50 ,  G09G3/3225 ,  H01L51/56 ,  H01L51/52

Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. Each pixel may include organic layers interposed between an anode and a cathode. The organic layers may emit out-coupled light that escapes the display and waveguided light that is waveguided within the organic layers. A reflector may be placed at the edge of the organic layers to reflect the waveguided light out of the display. The reflector may be located within a pixel definition layer and may be formed from metal or may be formed from one or more interfaces between high-refractive-index material and low-refractive-index material. The reflector may be formed from an extended portion of the pixel anode. The reflector may be formed from light-reflecting particles that are suspended in the pixel definition layer.

公开(公告)号：US20190067394A1

公开(公告)日：2019-02-28

申请号：US16114039

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Kwang Ohk Cheon ,  Cheng Chen ,  Chien Lu ,  Chih-Lei Chen ,  Chin Wei Hsu ,  Hui Lu ,  KiBeom Kim ,  Lun Tsai ,  Meng-Huan Ho ,  Nai-Chih Kao ,  Pei-Ling Lin ,  Rui Liu ,  Shan-Jen Yu ,  Wendi Chang ,  Yusuke Fujino

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  G09G3/3225

Abstract: A display may have an array of pixels formed from organic light-emitting diodes and thin-film transistor circuitry. Each pixel may include organic layers interposed between an anode and a cathode. The organic layers may emit out-coupled light that escapes the display and waveguided light that is waveguided within the organic layers. A reflector may be placed at the edge of the organic layers to reflect the waveguided light out of the display. The reflector may be located within a pixel definition layer and may be formed from metal or may be formed from one or more interfaces between high-refractive-index material and low-refractive-index material, The reflector may be formed from an extended portion of the pixel anode. The reflector may be formed from light-reflecting particles that are suspended in the pixel definition layer.