US Patent:
20190067394, Feb 28, 2019
Inventors:
- Cupertino CA, US
Cheng Chen - San Jose CA, US
Chien Lu - New Taipei City, TW
Chih-Lei Chen - Tai Chung, TW
Chin Wei Hsu - Hsinchu, TW
Hui Lu - Cupertino CA, US
KiBeom Kim - Cupertino CA, US
Lun Tsai - Zhubei, TW
Meng-Huan Ho - San Jose CA, US
Nai-Chih Kao - Taoyuan, TW
Pei-Ling Lin - New Taipei City, TW
Rui Liu - San Jose CA, US
Shan-Jen Yu - Taoyuan, TW
Wendi Chang - Santa Clara CA, US
Yusuke Fujino - Taoyuan, TW
International Classification:
H01L 27/32
H01L 51/50
H01L 51/52
H01L 51/56
G09G 3/3225
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.