Multimode source driver and display device having the same
US8305328B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Mar 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multimode source driver for driving a display device in provided, including a bus swapping circuit, connecting a first data bus to one of first and second internal buses and connecting a second data bus to the other one of the first and second internal buses according to a swapping control signal, a start pulse swapping circuit, receiving a first start pulse and a second start pulse to provide a first swap start pulse and a second swap start pulse according to the swapping control signal, a first shift register, triggered by the first swap start pulse to generate a first series of latch signals, a second shift register, triggered by the second swap start pulse to generate a second series of latch signals, a shift multiplexer, outputting a third series of latch signals by selecting the first series and second series of latch signals, a plurality of latch multiplexers, each configured to selectively transmit pixel data from the first or second internal bus according to a mode control signal, a plurality of latch units, configured to latch the pixel data from the latch multiplexers, and an output unit, configured to provide a plurality of driving voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.