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:
May. 26, 2026
Filed:
Mar. 04, 2025
Hannstar Display Corporation, Taipei City, TW;
Chun-Ming Hsu, Taipei City, TW;
Yen-Chung Chen, Taipei City, TW;
Chia Jung Wu, Taipei City, TW;
Chao-Yun Wu, Taipei City, TW;
Wei-Chih Hsu, Taipei City, TW;
HannStar Display Corporation, Taipei City, TW;
Abstract
A reflective display device including a reflective display panel, a front light module, a first polarizer, at least one light control film and a transparent display panel is provided. The front light module is disposed on one side of the reflective display panel and includes a light guide plate and a light source. The first polarizer is disposed between the light guide plate and the reflective display panel. The at least one light control film is disposed between the reflective display panel and the transparent display panel. Each of the at least one light control film includes a plurality of first periodic structures and a plurality of second periodic structures alternately arranged along at least one direction parallel to a second surface of the light guide plate. A refractive index of the plurality of first periodic structures is different from a refractive index of the plurality of second periodic structures.