Display apparatus and control method for display apparatus
US11828957B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jan 14, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus includes a laser radiation device, an object detection device, and a control device. The laser radiation device is configured to radiate laser light of a predetermined wavelength range to a display position in a gas to form a plasma in the display position. The object detection device is configured to detect presence or absence of an object in a predetermined space. The control device is configured to determine the predetermined space on a basis of the display position and intensity of the laser light scattered in the display position or having passed the display position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.