Light guide plate of display apparatus
US8714805B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2012 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jul 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0031
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A display apparatus includes a light source and a light guide plate including a light incident surface facing the light source and which receive the light, an opposite surface opposite to the light incident surface and which reflects the light and has an arc shape, connection surfaces at opposing sides of the light incident surface and which connect the light incident surface and the opposite surface, an upper surface connected to the light incident surface, the opposite surface and the connection surfaces and which outputs the light, and a lower surface opposite to the upper surface. The light incident surface of the light guide plate includes a first surface extending in a predetermined direction, and second surfaces inclined from the first surface in an area corresponding to the light source such that an optical recess having a polygonal pyramid shape is defined by the second surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.