Display panel and display device

US10718936B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Xianqin Meng · Beijing, CN
• Wei Wang · Beijing, CN
• Xue Dong · Beijing, CN
• Yafeng Yang · Beijing, CN
• Xiaochuan Chen · Beijing, CN
• Jifeng Tan · Beijing, CN
• Xiandong Meng · Beijing, CN
• Jian Gao · Singapore, SG

Key dates

• Filing date: Dec 1, 2017
• Grant date: Jul 21, 2020
• Expiry date: Mar 16, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2207/115
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A display panel includes a light waveguide layer and a first substrate disposed opposite to each other, and further including an electrowetting control layer disposed between the light waveguide layer and the first substrate, the electrowetting control layer including a first electrode layer, a second electrode layer, and a grating layer and an electrowetting layer which are disposed between the first electrode and the second electrode layer, the grating layer and the electrowetting layer are configured to operatively couple light with a set transmittance, a setting direction, and a set wavelength out of the light waveguide layer.