发明名称 APPARATUS AND METHOD FOR ADJUSTING DISPLAY CHARACTERISTICS OF DISPLAY DEVICE
摘要 A display panel driver includes an image data generator, a brightness correction circuit performing a correction calculation on image data, a drive section driving the display panel in response to corrected image data; and a display timing generator outputting a timing control signal. The correction calculation by the brightness correction circuit is adjustable. When the display panel driver is placed into a test mode, the display timing generator is configured to output an internally-generated timing control signal and the image data generator outputs internally-generated evaluation image data. The evaluation image data are generated so that the evaluation images are switched from one to another in response to the internally-generated timing control signal.
申请公布号 US2014204130(A1) 申请公布日期 2014.07.24
申请号 US201414157415 申请日期 2014.01.16
申请人 Renesas SP Drivers Inc, 发明人 SUGIYAMA Akio;NOSE Takashi;FURIHATA Hirobumi
分类号 G09G3/36 主分类号 G09G3/36
代理机构 代理人
主权项 1. A display panel driver for driving a display panel, comprising: an image data generator; a brightness correction circuit performing a correction calculation on image data fed from said image data generator to generate corrected image data; a drive section driving said display panel in response to said corrected image data; and a display timing generator outputting a timing control signal, wherein said correction calculation is adjustable by a setting, wherein said display timing generator outputs an internal timing control signal generated by a display timing generator circuit disposed in said display timing generator as said timing control signal, when said display panel driver is placed into a first state, wherein said image data generator outputs, as said image data, evaluation image data which correspond to evaluation images to be displayed on a display region of said display panel and are generated by an evaluation image data generator circuit disposed in the image data generator, when said display panel driver is placed into said first state, and wherein, when said display panel driver is placed into said first state, said evaluation image data generator circuit generates said evaluation image data so that said evaluation images are switched from one to another in response to said timing control signal.
地址 Tokyo JP