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.

Date of Patent:
Mar. 05, 2024

Filed:

Mar. 23, 2022
Applicant:

Chicony Electronics Co., Ltd., New Taipei, TW;

Inventors:

Mitsuo Horiuchi, New Taipei, TW;

Chia-Hsin Chen, New Taipei, TW;

Ping-Ju Kuo, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 13/83 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
H01H 13/83 (2013.01); G02B 6/0045 (2013.01); G02B 6/0055 (2013.01); H01H 2219/062 (2013.01);
Abstract

A keyboard includes a base plate, a plurality of keys and a backlight module. The base plate has a short-axis direction and a long-axis direction. The keys are disposed on the base plate. The backlight module is disposed on the base plate and includes a shielding sheet, a light guide plate and a reflecting sheet. The light guide plate is disposed on a lower surface of the shielding sheet. The light guide plate includes a plurality of light guide structures corresponding to the keys respectively. Each of the light guide structures includes a ring portion and at least one bend line portion. The bend line portion connects to the ring portion, and the ring portion is formed by a plurality of bending portions. The reflecting sheet is disposed below the light guide plate.


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