The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2023
Filed:
May. 21, 2021
Interface Technology (Chengdu) Co., Ltd., Sichuan, CN;
Interface Optoelectronics (Shenzhen) Co., Ltd., Guangdong, CN;
Interface Optoelectronics (Wuxi) Co., Ltd., Jiangsu, CN;
General Interface Solution Limited, Miaoli County, TW;
Shih-Yu Wang, Guangdong, CN;
Chun-Ta Chen, Guangdong, CN;
Shiuan-Huei Lin, Guangdong, CN;
Zih-Fan Chen, Guangdong, CN;
Wan-Lin Li, Guangdong, CN;
Yi-Hsin Lin, Guangdong, CN;
Yu-Jen Wang, Guangdong, CN;
Wei-Cheng Cheng, Guangdong, CN;
Chang-Nien Mao, Guangdong, CN;
Interface Technology (ChengDu) Co., Ltd., Sichuan, CN;
Interface Optoelectronics (SingZhen) Co., Ltd., Guangdong, CN;
Interface Optoelectronics (Wuxi) Co., Ltd., Jiangsu, CN;
General Interface Solution Limited, Miaoli County, TW;
Abstract
A display device includes a light source, a waveguide element, a liquid crystal coupler, a first holographic optical element and a second holographic optical element. The light source is configured to emit light. The waveguide element is located above the light source. The liquid crystal coupler is located between the waveguide element and the light source. The first holographic optical element is located on a top surface of the waveguide element, in which the liquid crystal coupler is configured to change an incident angle that the light emits to the first holographic optical element. The second holographic optical element is located on the top surface of the waveguide element, and there is a first distance in a horizontal direction between the first holographic optical element and the second holographic optical element, in which the second holographic optical element is configured to diffract the light to the waveguide element below.