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:
Aug. 19, 2025
Filed:
May. 22, 2024
Darfon Electronics Corp., Taoyuan, TW;
Chao-Yu Chen, Taoyuan, TW;
DARFON ELECTRONICS CORP., Taoyuan, TW;
Abstract
A touch input device includes a circuit board, a plurality of illuminant elements disposed on the circuit board, a spacer disposed over the circuit board, a plurality of light guide plates, a shielding sheet, and a top plate. The circuit board has a board edge and an upper surface having a plurality of sensing regions. The spacer has a light-leaking edge and a plurality of accommodation holes for accommodating the illuminant elements and the light guide plates. The shielding sheet includes a main section covering the spacer, a first extension section covering the light-leaking edge and the board edge, and a second extension section combined with the circuit board. The main section has a plurality of light permeable regions respectively corresponding to the light guide plates. The top plate is disposed on the main section and has a plurality of light-exit regions.