Optical modulating device, back light module, display apparatus, and fabricating method thereof
US11257995B2 · kind B2 · utility
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16Claims
0Family size
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Key dates
| Filing date | Mar 20, 2018 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Mar 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0363
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application provides an optical modulating device having a light transmissive region and a light blocking region. The optical modulating device includes a base substrate; a plurality of protrusions on the base substrate in the light transmissive region and configured to allow light emitting out of a side of the optical modulating device; and a reflective layer on the base substrate in the light blocking region and configured to block light from emitting out of the side of the optical modulating device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.