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. 23, 2024
Filed:
May. 23, 2023
Chih-chiang Pai, Taoyuan, TW;
Meng-kuei Lin, Taoyuan, TW;
Jung-han Liu, Taoyuan, TW;
Young Fast Optoelectronics Co., Ltd., Taoyuan, TW;
Abstract
An electronic paper device includes a touch cover plate module, a front lighting module and an electronic paper display module. The touch cover plate module has a top plate, a touch sensor and a bottom plate. The top plate is disposed with a black bezel. The bottom plate is disposed with a transparent conductive film with a low refractive index. The front lighting module has a light guide plate. An outer edge portion of the light guide plate is disposed with a point light source. The point light source emits light from a side of the light guide plate to convert the emitted light into a surface light source. An upper surface of the light guide plate is attached on the transparent conductive film to form a total reflection interface on the light guide plate and an electromagnetic mask layer between the touch sensor and the electronic paper display module.