Integration design for capacitive touch panels and liquid crystal displays
US8228306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2009 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | May 30, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0445
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An integrated touch screen and display device includes a polarizer with a layer of transparent conductive material deposited thereon. A touch screen controller is coupled to electrodes of the transparent conductive layer to detect the location of touches by, for example, a finger or stylus. A method for producing an integrated touch screen and display device includes applying a transparent conductive coating to an outer surface of a polarizer of a display device, creating electrodes in the conductive coating, and coupling the electrodes to a touch screen controller. A double super twisted nematic display that includes a capacitive touch panel integrated into a compensation cell of the display is also provided herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.