Multiple stop micro-mirror array display
US7483200B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2008 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Jan 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0841
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A micro mirror device is described. The device has a tiltable mirror plate with a reflective surface configured to reflect incident light to form a reflected light beam. A controller is configured to cause the mirror plate to tilt from an un-tilted position to an “off” position, a first “on” position, or a second “on” position. An opaque aperture structure is configured to block substantially all of a reflected light beam from reaching a display surface when the mirror plate is tilted to the “off” position, allow a first portion of a reflected light beam to pass through when the mirror plate is tilted to the first “on” position and allow a second portion of a reflected light beam to pass through when the mirror plate is tilted to the second “on” position. The tilting positions determine a brightness of display pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.