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:
May. 19, 2015
Filed:
Mar. 29, 2012
Sang-hun Jeon, Seoul, KR;
I-hun Song, Gyeonggi-do, KR;
Seung-eon Ahn, Gyeonggi-do, KR;
Young Kim, Yongin-si, KR;
Chang-jung Kim, Yongin-si, KR;
Yong-woo Jeon, Seoul, KR;
Sang-hun Jeon, Seoul, KR;
I-hun Song, Gyeonggi-do, KR;
Seung-eon Ahn, Gyeonggi-do, KR;
Young Kim, Yongin-si, KR;
Chang-jung Kim, Yongin-si, KR;
Yong-woo Jeon, Seoul, KR;
Samsung Electronics Co., Ltd., Gyeonggi-Do, KR;
Abstract
Optical touch screen apparatuses with remote sensing and touch sensing by using a light sensor transistor including an oxide semiconductor transistor. The optical touch screen apparatus includes a pixel array of a plurality of sensing pixels arranged in a plurality of rows and a plurality of columns. Each of the sensing pixels includes a light sensing pixel for sensing light that is irradiated by an external light source and a touch sensing pixel for sensing display light that is reflected by a screen touch. The light sensing pixel includes a first light sensor transistor and a first switch transistor connected each other in series, and the touch sensing pixel includes a second light sensor transistor and a second switch transistor connected each other in series.