Display apparatus and imaging apparatus
US12001039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2019 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | May 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/65
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a display apparatus body (10A), a first polarization plate (31), a first wave plate (32), a reflection layer (33), a second wave plate (35), and a second polarization plate (36) are arranged between a display element (De) and a lens (S) and are lined up in this order from the display element (De) toward the lens (S). Further, the reflection layer (33) includes reflection regions (E1) that correspond to positions of non-light emission regions (R2) of the display element (De) and that reflect light and includes light transmission regions (E2) that correspond to positions of a plurality of light emission regions (R1) and that transmit light. This can obtain a display apparatus that can improve the use efficiency of light emitted from a display element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.