| 摘要 |
PROBLEM TO BE SOLVED: To apply inter-pixel electrode voltage by switching reference voltage connected to a driver. SOLUTION: At first, the voltage values of reference voltage GNDc supplied to a column driver and reference voltage GNDr supplied to a row driver are GND (0V), the GNDr is connected to row electrodes X1 to X3 and the GNDc is connected to column electrodes Y1 to Y3. Then a switch is controlled, voltage (V1+V2) is supplied to the GNDr at prescribed time width, and in the next timing, the voltage (V1+V2) is supplied to the GNDc at the prescribed time width. Consequently a bipolar pulse of (V1+V2) is applied between pixel electrodes of the pixels (X1, Y1) to (X3, Y3), so that a cholesteric liquid crystal layer between two electrodes is in a planer state and the whole surface is reset to the planer state. This invention can be applied to a liquid crystal display apparatus or a driving circuit of the liquid crystal display apparatus. COPYRIGHT: (C)2007,JPO&INPIT
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