Liquid crystal display and method of driving the same
US8184107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2008 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Dec 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13312
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display includes a transparent conductive layer on an first substrate of a liquid crystal display panel transmitting display light, an insulating layer on the transparent conductive layer, a sensing circuit to generate a touch or non-touch sensing signal based on changes in the amount of surface charge of the transparent conductive layer depending on whether or not the insulating layer is touched, and a driving voltage supply circuit to generate a driving voltage of a high potential for a light sensing operation of a touch sensor circuit only when the touch or non-touch sensing signal indicates that the insulating layer is touched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.