Polarizer and organic light emitting display apparatus comprising the polarizer
US8373928B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 18, 2008 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Feb 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarizer includes a base and a plurality of grids arranged on a surface of the base parallel to one another. Each of the grids comprises an intermediate layer and a semi-transmissive metal layer that reflects a part of external light incident thereon and transmits a part of the external light incident thereon. The semi-transmissive metal layer and the intermediate layer are alternately deposited to include at least two semi-transmissive metal layers. The thicknesses of the semi-transmissive metal layers increases in a direction in which the semi-transmissive metal layer is disposed away from the external light. An organic light emitting display apparatus includes the polarizer and has improved contrast and brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.