US 11,955,297 B2
Keyboard and backlight module
Mitsuo Horiuchi, New Taipei (TW); Chia-Hsin Chen, New Taipei (TW); and Ping-Ju Kuo, New Taipei (TW)
Assigned to CHICONY ELECTRONICS CO., LTD., New Taipei (TW)
Filed by CHICONY ELECTRONICS CO., LTD., New Taipei (TW)
Filed on Mar. 23, 2022, as Appl. No. 17/702,128.
Claims priority of provisional application 63/235,374, filed on Aug. 20, 2021.
Claims priority of application No. 110143002 (TW), filed on Nov. 18, 2021.
Prior Publication US 2023/0053436 A1, Feb. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01H 13/83 (2006.01)
CPC H01H 13/83 (2013.01) [H01H 2219/06 (2013.01); H01H 2219/0621 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A keyboard, comprising:
a base plate having a short axis direction and a long axis direction, wherein the base plate comprises at least one long slit disposed on the base plate along the short axis direction such that a length of the base plate is adjusted along the long axis direction; and
a backlight module disposed on a side of the base plate, the backlight module comprising:
a shielding sheet comprising an upper surface and a lower surface, the upper surface facing toward the base plate;
a light guide plate disposed on the lower surface of the shielding sheet; and
a reflecting sheet disposed below the light guide plate and comprising a plurality of first slits, wherein when the length of the base plate is adjusted along the long axis direction, the reflective sheet can be adjusted and moved corresponding to the base plate by expansion of the plurality of first slits.