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:
Mar. 24, 2020
Filed:
Nov. 13, 2018
Primax Electronics Ltd., Taipei, TW;
Ying-Te Chiang, Taipei, TW;
Lei-Lung Tsai, Taipei, TW;
Yu-Ming Lin, Taipei, TW;
Ding-Hsiang Pan, Taipei, TW;
PRIMAX ELECTRONICS LTD., Taipei, TW;
Abstract
This application provides a luminous keyboard, including a plurality of keys, a plurality of keys, a light guide plate, and a reflector. Each of the keys includes a rubber dome, where the rubber dome is made of a translucent material doped with a plurality of light-diffusion particles, and when the rubber dome is irradiated by a light ray, a part of the light ray is diffused when traveling upward through the rubber dome, and the other part of the light ray is reflected downward by the rubber dome to the reflector, then, is reflected upward, and is diffused when passing by a plurality of light diffusion protrusions of the light guide plate, to be emitted outward through the keys.