Display device and method providing display contact information based on an amount of received light
US8665223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2006 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Oct 23, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0809
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display device and a display method are provided in which the influence of the outside light can be removed easily, in the case where light-emitting and light-receiving are performed in parallel and simultaneously.In the case where an image-display and a light-receiving are performed simultaneously or alternately on a display surface of the display device, processing of making the display surface emit light to display an image is performed; light entering the display surface is received, which is the light-receiving of two times of a state in which the light-emitting for display use is being performed (step S11) and of a state in which light is not emitted (step S12); and a state in which the display surface is touched or approached is detected based on the detection of a difference in the quantities of received light of the two times (step S13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.