Active matrix display device
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United States of America Patent
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Dec 30, 2003
Grant Date -
Jul 11, 2002
app pub date -
Dec 6, 2001
filing date -
Dec 7, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The active matrix display device of this invention operates under two operation modes: a normal operation mode in which the pixel element electrode sequentially receives the pixel element voltage in response to an image signal sequentially inputted and a memory operation mode in which display is made based on the data held by the retaining circuit. In this active matrix display device, at least a part of the retaining circuit is set for the predetermined voltage and functions as a storage capacitance element for holding the voltage between the pixel element electrode and the common electrode under the normal operation mode. In this configuration, it is possible to reduce the size of the storage capacitance element originally disposed, because at least a part of the retaining circuit works as the storage capacitance element. Therefore, as the size of the storage capacitance element gets smaller, the size of the pixel element can also be smaller, leading to the size reduction of the device as a whole.
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