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:
Sep. 20, 2022
Filed:
Jun. 17, 2021
Sharp Display Technology Corporation, Kameyama, JP;
Sharp Display Technology Corporation, Mie, JP;
Abstract
A touch panel display includes a display panel having a plurality of pixel regions that emit light, and a touch sensor having an electrode configuration that overlays the display panel. The electrode configuration includes a first electrode and a second electrode that are separated by an insulating region. The electrode separation distance between the first and second electrodes is in a range whereby (1) with increasing electrode separation distance a first rate of proportional decrease in mutual capacitance between the first and second electrodes is greater than a second rate of proportional decrease in signal magnitude of an output signal, and (2) a ratio (R) of the first rate to the second rate satisfies the relationship 1.0<R<2.5. With such parameters, the electrode separation distance may be from 30 μm to 50 μm, and/or from 0.5 to 0.75 times a pixel pitch of the pixel regions.