Back to results
US 2001/0011979 A1Published application
Liquid crystal display device
AssigneeKabushiki Kaisha Toshiba
InventorsREI HASEGAWA, GOH ITOH, HISAO FUJIWARA, YUJIRO HARA, MASAHIKO AKIYAMA, TATSUO SAISHU, RIEKO IIDA
Life of this patent
Estimating the term…
Abstract
A liquid crystal display device is an active matrix type liquid crystal display device using a liquid crystal material having spontaneous polarization induced by application of an electric field or inherent thereto and includes a driving circuit for simultaneously selecting and driving a desired number of scanning lines among a plurality of scanning lines and a voltage applying circuit for applying a desired voltage for alignment of the liquid crystal material to a common electrode.
Claims24
A liquid crystal display device comprising:
- a first base plate;
- a plurality of pixel electrodes arranged in rows and columns on said first base plate;
- a plurality of switching transistors formed in correspondence to said plurality of pixel electrodes, each of said plurality of switching transistors having a gate electrode and a source and a drain region and one of said source and said drain region being connected to a corresponding one of said plurality of pixel electrodes;
- a plurality of scanning lines arranged on said rows of said first base plate, each of said plurality of scanning lines being connected to said gate electrode of a corresponding one of said plurality of switching transistors;
- a plurality of signal lines arranged on said columns of said first base plate, each of said plurality of signal lines being connected to the other of said source and said drain region of said corresponding one of said plurality of switching transistors;
- a second base plate arranged in opposition to a surface of said first base plate on which said plurality of pixel electrodes are formed;
- a common electrode formed on said second base plate;
- a liquid crystal material sealed between said first and said second base plate and having spontaneous polarization;
- driving means for simultaneously selecting and driving a desired number of scanning lines among said plurality of scanning lines;
- and
- voltage applying means for applying a desired voltage to said common electrode.
8 more elements
A liquid crystal display device comprising:
- a first base plate;
- a storage capacitor electrode formed on said first base plate;
- an insulating film formed above said first base plate with said storage capacitor electrode disposed therebetween;
- a plurality of pixel electrodes arranged in rows and columns on said insulating film;
- a plurality of switching transistors formed in correspondence to said plurality of pixel electrodes on said insulating film, each of said plurality of switching transistors having a gate electrode and a source and a drain region and one of said source and said drain region being connected to a corresponding one of said plurality of pixel electrodes;
- a plurality of scanning lines arranged on said rows of said first base plate, each of said plurality of scanning lines being connected to said gate electrode of a corresponding one of said plurality of switching transistors;
- a plurality of signal lines arranged on said columns of said first base plate, each of said plurality of signal lines being connected to the other of said source and said drain region of said corresponding one of said plurality of switching transistors;
- a second base plate arranged in opposition to a surface of said first base plate on which said plurality of pixel electrodes are formed;
- a common electrode formed on said second base plate;
- a liquid crystal material sealed between said first and said second base plate and having spontaneous polarization;
- and
- voltage applying means for applying a desired voltage between said common electrode and said storage capacitor electrode.
9 more elements
Dependencies are inferred from the claim text.