| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid crystal panel drive technology of a liquid crystal display device capable of stabilizing a boosting operation by utilizing the identical frequency every time each frame is started, during a process in which a panel drive voltage is generated utilizing a variable frequency with a boost converter of LDI so that electromagnetic wave interference is reduced. <P>SOLUTION: In the present invention, a panel drive voltage is generated by utilizing variable frequency with a boost converter of LDI so that electromagnetic wave interference is reduced. An oscillator is provided in which, in order to stabilize boosting operation by utilizing the identical frequency each time every frame starts, the oscillation signal, of the frequency that irregularly hops or changes in a constant pattern with a central frequency as reference is synchronized with synchronous signal, to generate an oscillation signal of a predetermined fixed frequency each time every frame starts. <P>COPYRIGHT: (C)2012,JPO&INPIT |
