Display apparatus having spacers with different heights and different upper and lower surface areas
US9041895B2 · kind B2 · utility
3Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2012 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Apr 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13396
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display apparatus includes a lower substrate, an upper substrate, a spacer and an image display layer. The spacer includes a main spacer, a first sub-spacer and a second sub-spacer. The main spacer has a height greater than that of the first and second sub-spacers. The second sub-spacer has an area wider than that of the main spacer and the first sub-spacer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.