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:
Feb. 27, 2024
Filed:
Sep. 27, 2022
Tong Lung Metal Industry Co., Ltd., Minxiong Township, TW;
Pai-Hsiang Chuang, New Taipei, TW;
Ruei-Jie Jeng, Jhuci Township, TW;
Chen-Ming Lin, Minsyong Township, TW;
Ding-Sian Cai, Singang Township, TW;
Chun-Yi Fang, Huwei Township, TW;
Tong Lung Metal Industry Co., Ltd., Minxiong Township, TW;
Abstract
A membrane touch panel device includes a circuit board unit, a light-blocking frame plate, a plurality of light-blocking tabs, and an operation panel unit that are stacked along a front-rear direction. The circuit board unit includes a circuit board having a plurality of keypad circuits, and a plurality of LEDs being electrically connected to the circuit board. A light transmission rate of the circuit board ranges from 0% to 20%. The light-blocking frame plate is stacked on the circuit board, and defines a hollow section provided for the LEDs to protrude thereinto. The light-blocking tabs are connected to the light-blocking frame plate such that the light-blocking tabs respectively cover the LEDs. The operation panel unit is stacked on the light-blocking frame plate, and has a plurality of key segments being respectively aligned with the keypad circuits, and being adapted to permit light generated by the LEDs to pass therethrough.