Display driver integrated circuit which stores output mode of driving circuit control signal in non-volatile memory and method of outputting the driving circuit control signal
US8681133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2007 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display driver integrated circuit (IC) that stores an output mode of driving circuit control signal in a non-volatile memory and a method of outputting the driving circuit control signal, wherein the display drive IC fixes the driving circuit control signal values using fixation wire disposed on top layers of the display driver IC, and a method of manufacturing the display driver IC. The display driver IC includes a plurality of driving circuits, which operate a display panel; a driving circuit control signal output unit, which outputs a plurality of driving circuit control signal values, which control the driving circuits, received from an external device in a test mode, or outputs the plurality of driving circuit control signal values, which control the driving circuits that are internally set to a plurality of fixed values in a production mode; and a non-volatile memory, which stores a mode selection value indicating the test mode or the production mode, wherein the driving circuit control signal output unit operates in the test mode or the production mode in response to the mode selection value stored in the non-volatile memory. In the display drive IC, which stores an output…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.