Patent · US Active

Optical touch screen and display device

US10139939B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignees

Inventors

Bozhu Zhou · Beijing, CN
Myoung-Kee Baek · Seojong-myeon, KR
Xianxue Duan · Beijing, CN
Cheng-Tso Chen · Beijing, CN
Chengshao Yang · Beijing, CN
Binbin Cao · Beijing, CN

Key dates

Filing date	Jul 17, 2014
Grant date	Nov 27, 2018
Priority date	—
Expiry date	Jul 17, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F2203/04109
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An optical touch screen and a display device are disclosed. The optical touch screen (200) comprises an optical touch panel (210) and a first sensor (220) and a second sensor (230). The optical touch panel (210) comprises a first optical transmission channel (211) and a second optical transmission channel (212) which are intersected with each other. The first sensor (220) is disposed on at least one end of the first optical transmission channel (211) and configured to receive light emitted by the first optical transmission channel (211). The second sensor (230) is disposed on at least one end of the second optical transmission channel (212) and configured to receive light emitted by the second optical transmission channel (212). The optical touch screen and the display device can improve the positioning accuracy of the touch position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.