Patent ID: 7379058
Filing Date: 2008-05-27
Classification: G09G

Abstract:
1. A display apparatus that is used as a display component of an electronic device capable of switching between a normal power consumption state and a low power consumption state and that comprises a panel in which a display area and a peripheral circuit section for driving the display area are integrally formed on an insulating substrate, wherein said circuit section can switch between an operation mode and a waiting mode in response to the switching between the normal power consumption state and the low power consumption state of a main body of the electronic device, said circuit section comprises standby control means that operates by receiving power supply voltage from the main body of the electronic device and drives the display area to show a desired image in the operation mode, and while receiving the power supply voltage from the main body of the electronic device, stops driving the display area and inactivates the circuit section to suppress power consumption of the panel in the waiting mode, and said standby control means executes a control sequence to shut off direct current components flowing through resistive elements at least included in the circuit section during the inactivation, and wherein said display area comprises pixel electrodes arranged as a matrix, common electrodes opposing to the pixel electrodes, and an electro-optic material held between the pixel and common electrodes, said circuit section comprises drivers for writing signal voltage to the pixel electrodes, a common driver for applying a common voltage to the common electrodes, and an offset circuit for adjusting a level of the common voltage relative to the signal voltage, and said standby control means executes a control sequence to shut off direct current components flowing through resistive elements included in the offset circuit during the inactivation.