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:
Apr. 25, 2023
Filed:
Mar. 04, 2022
Benq Corporation, Taipei, TW;
BenQ Corporation, Taipei, TW;
Abstract
A touch display screen includes a display panel, a touch-sensing part, a biosensor and a controller. The touch-sensing part is disposed on a light emitting side of the display panel and has a touch-sensing surface. The touch-sensing part includes a light-emitting device and a light receiver. The light-emitting device is used to provide at least one positioning light and at least one high-energy light. The light receiver is used to detect a change of the positioning light on the touch-sensing surface in response to a touch action and determine the position on which the touch action occurs on the touch-sensing surface. The biosensor is used to determine whether a living body getting close to the touch-sensing surface. The controller is used to drive the light-emitting device to selectively provide the positioning light and/or the high-energy light to the touch-sensing surface according to the determinations of the biosensor.