| 摘要 |
PROBLEM TO BE SOLVED: To obtain a liquid crystal panel display device which is compact and whose power consumption is made low by providing a display signal wiring for supplying display signal data to the data bus of a liquid crystal display panel and devided into plural blocks. SOLUTION: The display data (four blocks×75 lines=300 lines) supplied to four blocks 72A to 72D, for example, are inputted in a TAB IC 76. Next, a display signal 62(D1 to D75) is supplied to the display signal wirings 74A to 74D according to an output indication signal LE for the TAB.IC 76. A start pulse in a control signal 60 is inputted in shift registers 48A to 48D so as to conduct an analog switch 66, and the display signal 62 is written in the above data buses 68A to 68D of 75 lines×four blocks. The next display data 62 is set in the TAB.IC 76, and all the shift registers 48A to 48D in four blocks are shifted to the right by one, then the output indication signal LE is given to the TAB IC 76 again so as to supply the display signal 62 to the display signal wirings 74A to 74D, and the display signal 62 is written in the display signal wiring adjacent on the right.
|
