Projection-type display device and method for adjusting a projected image
US11336877B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2016 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Apr 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This projection-type display device has: an operation signal detection unit that receives operation signals that indicate adjustment content of a projected image, the adjustment content having been instructed by way of an operation unit; an installation state detection unit that detects, as the installation state of the projection-type display device, a first state and a second state realized by rotating 90 degrees around an axis parallel to the optical axis of the projection lens; and a control unit that, upon detecting a signal that corresponds to the first direction by way of the operation signal detection unit in the first state and the second state, adjusts a projected image by shifting the projected image in the first direction or by moving a correction-object site in the projected image in the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.