Display apparatus including free-formed surface and operating method thereof
US11682325B2 · kind B2 · utility
0Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2021 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Oct 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a display apparatus including an image generator configured to time-sequentially generate a plurality of images by modulating light, and an optical system including a freeform surface that is configured to time-sequentially form a plurality of virtual images respectively corresponding to the plurality of images at different depths from a user's eye, wherein each error value among error values between the plurality of images and the plurality of virtual images respectively corresponding to the plurality of images on the freeform surface is less than or equal to a profile value of the freeform surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.