Organic light emitting diode display device
US10763316B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Dec 13, 2018 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Dec 13, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/331
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An organic light emitting diode display device includes a substrate including a red pixel region, a green pixel region, and a blue pixel region; a driving thin film transistor and a light emitting diode which are in each of the red pixel region, the green pixel region, and the blue pixel region; and a cholesteric liquid crystal (CLC) layer having an infrared radiation (IR) wavelength in a transmission direction of light emitted from the light emitting diode, wherein the IR wavelength is in a range of 800 nm to 1,100 nm, and the CLC layer has a reflection wavelength of 400 nm to 700 nm at a viewing angle of 40° to 60°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.