Display apparatus
US9086761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2011 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Feb 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04109
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus includes a display panel that displays an image using a first light, a light guide part positioned at a front side of the display panel, a backlight unit, an image information collecting part, and a processing part. The light guide part emits a second light different from the first light and guide the second light, and the backlight unit is positioned at a rear side of the display panel to provide the first light to the display panel. The image information collecting part photographs the light emitted from the light guide part to output image information. The processing part processes the image information to generate a coordinate value of a position at which an object provided on the light guide plate is positioned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.