DMD assembly, DLP optical engine and DLP projection device
US10082665B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 22, 2017 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | May 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2023/4087
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to the field of optical and projecting technology, and particularly to a DMD assembly, DLP optical engine and DLP projection device. The DMD assembly includes a base, a driver board, a chip substrate with a DMD chip and a fixing frame, where a first side of the base is provided with a mounting groove for mounting the chip substrate, a second side of the base is attached to the driver board, and the first side is opposite to the second side; a conductive spring leaf on the base extends through a bottom of the mounting groove and is beyond the second side, so that the chip substrate is electrically connected to the driver board through the conductive spring leaf; the driver board is provided with a first through hole, and the fixing frame is provided with a second through hole; position of the first hole corresponds to position of the second hole, and the driver board and the fixing frame are fixed by a fastener extending through the first through hole and the second through hole; and the fixing frame is provided with an inserting hole, into which the base is inserted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.