Display device with total internal reflection
US10436951B2 · kind B2 · utility
3Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2016 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Feb 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/383
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device has a display to generate a real image. An optical system has lenslets, each generating a virtual sub-image from a respective partial real image on the display, by each lenslet projecting light from the display to an eye position. The sub-images combine to form a virtual image viewable from the eye position. At least one of the lenslets is an “RXIR” lenslet, in which the light rays from the display to the eye position are deflected sequentially at least four times by a refraction (R), a reflection (X), a total internal or metallic reflection (I), and a refraction (R) in that order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.