Liquid crystal device, electro-optical device, and projection display device employing the same
AssigneeSeiko Epson Corporation
InventorKENYA ISHII
Life of this patent
Estimating the term…
Abstract
On a liquid crystal device substrate 1, a capacitor 85 is provided between reset signal lines 81 and 82 for applying reset potentials to the respective data lines prior to the supply of the image signals to the data lines, and a potentiostatic line 84. The capacitor 85 is formed by making use of each of the processes for producing a TFT 50 for applying the reset potentials to the respective data lines prior to the supply of the image signals to the data lines. A liquid crystal device and a projection display device employing the liquid crystal device prevent signals from circulating from data lines via a reset signal line, thus permitting higher quality of display to be achieved.
Claims12
A liquid crystal device comprising:
- a first substrate and a second substrate with liquid crystal sealed in therebetween;
- a pixel section, which is mounted on said first substrate, is composed of a plurality of data lines to which image signals are supplied, a plurality of scanning lines which cross said plurality of scanning lines and to which scanning signals are supplied, a first switching element connected to said respective data lines and scanning lines, and a pixel electrode connected to said first switching element;
- and
- a reset driving circuit, which is mounted on said first substrate, is provided with a second switching element for supplying reset signals, which has been supplied to a reset signal line, to said data lines prior to the supply of image signals in the area around said pixel section, and a capacitor connected to said reset signal line, said pair of substrates being bonded to each other by a sealing layer formed in the area outside said pixel section;
- wherein said capacitor is disposed in an area where said sealing layer is formed and has a pair of electrodes, namely, a first electrode to which a predetermined potential is supplied and a second electrode which is electrically connected to said reset signal line and is disposed opposite to said first electrode via an insulating film.
An electro-optical device comprising:
- a plurality of data lines to which image signals are supplied;
- a plurality of scanning lines to which scanning signals are supplied;
- a first switching element connected to said respective data lines and scanning lines;
- and a pixel electrode connected to said first switching element;
- said electro-optical device further comprising:
- a reset driving circuit which has a second switching element for supplying reset signals, which has been supplied to a reset signal line, to said data lines prior to a period which image signals are supplied to said data lines, and a capacitor connected to said reset signal line.
Dependencies are inferred from the claim text.