Display active alignment systems utilizing test patterns for calibrating signals in waveguide displays
US10216263B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | Sep 12, 2016 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Jan 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display system includes a display alignment tracker configured track the position of a first signal in a first waveguide and the position of a second signal in a second waveguide. The display alignment tracker optically multiplexes a portion of a first signal and a portion of the second signal into a combined optical signal and measures a differential between the first signal and the second signal. The differential is used to adjust the position, dimensions, or a color attribute of the first signal relative to the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.