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:
Jul. 14, 2026
Filed:
Aug. 22, 2025
E Ink Holdings Inc., Hsinchu, TW;
Yi-Yu Tsai, Hsinchu, TW;
Jau-Min Ding, Hsinchu, TW;
Ching-Huan Liao, Hsinchu, TW;
Chao-Chun Cheng, Hsinchu, TW;
Hsin-Tao Huang, Hsinchu, TW;
E Ink Holdings Inc., Hsinchu, TW;
Abstract
A reflective display device includes a reflective display panel, a cover plate on the reflective display panel, and a front light module between the reflective display panel and the cover plate. The front light module includes a light source and a light guide plate. The light guide plate includes a main body, a first microstructure, a second microstructure and a third microstructure. The main body has a first surface, a second surface and a light incident surface. The light source is disposed on the light incident surface. The first surface is between the second surface and the cover plate. The second surface is between the reflective display panel and the first surface. The first microstructure is disposed on the first surface, the second microstructure is disposed on the first microstructures and covers a portion of the first microstructure, and the third microstructure is disposed on the second surface.