Keystone correction method and apparatus of curved display
US9277162B2 · kind B2 · utility
1Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2013 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Apr 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A keystone correction apparatus and method of curved display are provided. The apparatus includes a curved screen that displays an image and a projector that has an infrared lighting device to irradiate infrared light to the curved screen. An infrared imaging device is configured to capture infrared light reflected from the curved screen. A controller is configured to determine whether the curved screen is distorted using an infrared image captured by the infrared imaging device and perform a keystone correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.