Control board and display apparatus having the same
US7973785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2007 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Jan 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0435
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a control board and a display apparatus, the control board includes a timing controller, and first and second connectors. The timing controller receives a first external image control signal having one of a first and a second frequency, and selectively receives a second external image control signal having the first frequency when the first external image control signal has the first frequency. The timing controller selects one of the first and second frequencies based on the first and second external image control signals to output an image driving signal. The first connector connects the timing controller to an external video system to transfer the first external image control signal to the timing controller. The second connector connects the timing controller to the external video system to transfer the second external image control signal to the timing controller. Thus, the control board is commonly used in the first and second frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.