Repairing microdisplay frame buffers
US7698607B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2004 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Dec 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A frame buffer for a microdisplay may be implemented with a repair algorithm that achieves desired uniformity in the frame buffer. Because the frame buffer and the display are tightly coupled, it is desirable to avoid providing unnecessary redundant elements which break up the uniformity of the overall integrated circuit. To this end, when a cell in the frame buffer is defective, a system to automatically address in its place an adjacent cell may be implemented. In one embodiment, control logic may address a column multiplexer to select an adjacent cell in an adjacent column in the same row to provide information in place of the defective cell in the frame buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.