LIGHTGUIDE PLATE OPTICAL SWITCH AND LIGHTGUIDE PLATE ARRAY OPTICAL SWITCH MODULE

WIPO Patent Application WO/2020/221368

A1

A lightguide plate optical switch and a lightguide plate array optical switch module, comprising an optical transmitter, an optical receiver, a circuit board, an optical switch, and a lightguide plate. An optical signal transmitted by the optical transmitter is connected to the optical receiver via the optical switch. When the optical switch is triggered, a propagating optical path between the optical transmitter and the optical receiver is interrupted. The lightguide plate is divided into multiple optical areas. Optical signals in the multiple optical areas are separated from each other. In each optical area, multiple optical transmitters respectively are connected to optical paths of a group of optical receivers or respectively are connected to an optical path of one optical receiver. The optical transmitter is connected to an output port of a CPU; the optical receiver is connected to an input port of the CPU. Provided is a thin-film optical switch having a simple manufacturing process and inexpensive production costs, specifically provided is an ultrathin thin-film optical switch having an extended service life and applicable broadly in PC keyboards, thin membrane keyboards, and thin notebook keyboards.

CHEN FENG (CN)

PCT/CN2020/088543

November 05, 2020

May 01, 2020

Click for automatic bibliography generation  

CHEN FENG (CN)

H01H13/83

CN205028824U	2016-02-10
CN206116260U	2017-04-19
CN103367010A	2013-10-23
CN101350263A	2009-01-21
CN205319073U	2016-06-15
CN109088629A	2018-12-25
JP2004021633A	2004-01-22

View/Download PDF      PDF Help

Previous Patent: BURNER AND GAS WATER HEATER

Next Patent: PUNCTURE CORE ASSEMBLY AND PUNCTURE DEVICE HAVING PUNCTURE CORE ASSEMBLY