Light guide plate and planer light source device having the same
US10234620B2 · kind B2 · utility
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5Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 30, 2016 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0088
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide plate includes a light introduction surface to receive light supplied from a light source module and a light emission surface to emit the light outward, the light emission surface having a larger area than the light introduction surface. The light guide plate is of a material that transmits light and absorbs light in an absorption wavelength band. The light guide plate further includes a plurality of color patterns to convert the light supplied from the light source module into light in the absorption wavelength band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.