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:
Apr. 04, 2023
Filed:
Nov. 06, 2019
Applicant:
E Ink Holdings Inc., Hsinchu, TW;
Inventors:
Hsin-Hao Jen, Hsinchu, TW;
Tsai-Wei Shei, Hsinchu, TW;
Chin-Chi Yu, Hsinchu, TW;
Chih-Chun Chen, Hsinchu, TW;
Assignee:
E Ink Holdings Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01); F21V 8/00 (2006.01); G02F 1/16757 (2019.01); G02F 1/167 (2019.01); G02F 1/1677 (2019.01);
U.S. Cl.
CPC ...
G02B 6/0088 (2013.01); G02B 6/0091 (2013.01); G02F 1/167 (2013.01); G02F 1/1677 (2019.01); G02F 1/16757 (2019.01);
Abstract
A light guide assembly includes a light guide plate and a light source. The light guide plate has a through hole, an inner sidewall that surrounds the through hole, and an outer sidewall that surrounds the inner sidewall. The inner sidewall has a halo elimination structure that faces the through hole. The outer sidewall has a light incident surface. The light source faces the light incident surface of the outer sidewall of the light guide plate.