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:
Dec. 29, 2015
Filed:
Sep. 12, 2013
Samsung Display Co., Ltd., Yongin-si, Gyeonggi-do, KR;
David Hoffman, Freemont, CA (US);
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A system and method for hover detection and touch detection in a display. In one embodiment, a first set of infrared (IR) emitters illuminates the interior of a transparent layer and the IR light is confined to the interior of the layer by total internal reflection, unless an object, such as a finger, touches the surface of the layer. Additional IR emitters at a different wavelength illuminate the volume outside of the display for hover detection. Two sets of wavelength-selective IR sensors, such as quantum dot sensors, are embedded in the display and are used to localize one or more fingers touching, or hovering near, the display.