Liquid crystal display device and semiconductor device

Abstract

By increasing an interval between electrodes which drives liquid crystals, a gradient of an electric field applied between the electrodes can be controlled and an optimal electric field can be applied between the electrodes. The invention includes a first electrode formed over a substrate, an insulating film formed over the substrate and the first electrode, a thin film transistor including a semiconductor film in which a source, a channel region, and a drain are formed over the insulating film, a second electrode located over the semiconductor film and the first electrode and including first opening patterns, and liquid crystals provided over the second electrode.

1 . (canceled) 
     
     
         2 . A liquid crystal display device comprising:
 a j-th gate wiring and a (j+1)-th gate wiring, where j is a natural number;   a k-th source wiring and a (k+1)-th source wiring, where k is a natural number;   a first light-transmitting electrode in a region between the j-th gate wiring and the (j+1)-th gate wiring, and between the k-th source wiring and the (k+1)-th source wiring;   a second light-transmitting electrode over the first light-transmitting electrode,   wherein the second light-transmitting electrode includes three opening patterns configured to control an orientation state of liquid crystal molecules, in the region between the j-th gate wiring and the (j+1)-th gate wiring, and between the k-th source wiring and the (k+1)-th source wiring, and   wherein each of the three opening patterns is elongated along the k-th source wiring and the (k+1)-th source wiring, and has an inflected portion.   
     
     
         3 . The liquid crystal display device according to  claim 2 , wherein a line connecting the each inflected portion of the three opening patterns is substantially parallel with the j-th gate wiring and the (j+1)-th gate wiring. 
     
     
         4 . The liquid crystal display device according to  claim 2 , wherein the three opening patterns entirely overlap the first light-transmitting electrode. 
     
     
         5 . The liquid crystal display device according to  claim 2 , wherein each of the three opening patterns has a same shape. 
     
     
         6 . The liquid crystal display device according to  claim 2 , wherein the liquid crystal display device is incorporated in one selected from the group consisting of a television receiver, a personal computer, a digital camera, a video camera, an image reproduction device, an electronic book, and a mobile phone. 
     
     
         7 . A liquid crystal display device comprising:
 a j-th gate wiring and a (j+1)-th gate wiring, where j is a natural number;   a k-th source wiring and a (k+1)-th source wiring, where k is a natural number;   a first light-transmitting electrode in a region between the j-th gate wiring and the (j+1)-th gate wiring, and between the k-th source wiring and the (k+1)-th source wiring;   a second light-transmitting electrode over the first light-transmitting electrode,   wherein the second light-transmitting electrode includes three opening patterns configured to control an orientation state of liquid crystal molecules, in the region between the j-th gate wiring and the (j+1)-th gate wiring, and between the k-th source wiring and the (k+1)-th source wiring,   wherein each of the three opening patterns is elongated along the k-th source wiring and the (k+1)-th source wiring, and has an inflected portion, and   wherein the first light-transmitting electrode does not have an opening pattern.   
     
     
         8 . The liquid crystal display device according to  claim 7 , wherein a line connecting the each inflected portion of the three opening patterns is substantially parallel with the j-th gate wiring and the (j+1)-th gate wiring. 
     
     
         9 . The liquid crystal display device according to  claim 7 , wherein the three opening patterns entirely overlap the first light-transmitting electrode. 
     
     
         10 . The liquid crystal display device according to  claim 7 , wherein each of the three opening patterns has a same shape. 
     
     
         11 . The liquid crystal display device according to  claim 7 , wherein the liquid crystal display device is incorporated in one selected from the group consisting of a television receiver, a personal computer, a digital camera, a video camera, an image reproduction device, an electronic book, and a mobile phone. 
     
     
         12 . A liquid crystal display device comprising:
 a j-th gate wiring and a (j+1)-th gate wiring, where j is a natural number;   a k-th source wiring and a (k+1)-th source wiring, where k is a natural number;   a first light-transmitting electrode in a region between the j-th gate wiring and the (j+1)-th gate wiring, and between the k-th source wiring and the (k+1)-th source wiring;   a second light-transmitting electrode over the first light-transmitting electrode,   wherein the second light-transmitting electrode includes three opening patterns configured to control an orientation state of liquid crystal molecules, in the region between the j-th gate wiring and the (j+1)-th gate wiring, and between the k-th source wiring and the (k+1)-th source wiring,   wherein each of the three opening patterns is elongated along the k-th source wiring and the (k+1)-th source wiring, and has an inflected portion, and   wherein a line connecting each inflected portion of the three opening patterns overlaps an inflected portion of the k-th source wiring and an inflected portion of the (k+1)-th source wiring.   
     
     
         13 . The liquid crystal display device according to  claim 12 , wherein the line connecting the each inflected portion of the three opening patterns is substantially parallel with the j-th gate wiring and the (j+1)-th gate wiring. 
     
     
         14 . The liquid crystal display device according to  claim 12 , wherein the three opening patterns entirely overlap the first light-transmitting electrode. 
     
     
         15 . The liquid crystal display device according to  claim 12 , wherein each of the three opening patterns has a same shape. 
     
     
         16 . The liquid crystal display device according to  claim 12 , wherein the liquid crystal display device is incorporated in one selected from the group consisting of a television receiver, a personal computer, a digital camera, a video camera, an image reproduction device, an electronic book, and a mobile phone. 
     
     
         17 . A liquid crystal display device comprising:
 a j-th gate wiring and a (j+1)-th gate wiring, where j is a natural number;   a k-th source wiring and a (k+1)-th source wiring, where k is a natural number;   a first light-transmitting electrode in a region between the j-th gate wiring and the (j+1)-th gate wiring, and between the k-th source wiring and the (k+1)-th source wiring;   a second light-transmitting electrode over the first light-transmitting electrode,   wherein the second light-transmitting electrode includes three opening patterns configured to control an orientation state of liquid crystal molecules, in the region between the j-th gate wiring and the (j+1)-th gate wiring, and between the k-th source wiring and the (k+1)-th source wiring,   wherein each of the three opening patterns is elongated along the k-th source wiring and the (k+1)-th source wiring, and has an inflected portion, and   wherein the three opening patterns are spaced apart from each other.   
     
     
         18 . The liquid crystal display device according to  claim 17 , wherein a line connecting the each inflected portion of the three opening patterns is substantially parallel with the j-th gate wiring and the (j+1)-th gate wiring. 
     
     
         19 . The liquid crystal display device according to  claim 17 , wherein the three opening patterns entirely overlap the first light-transmitting electrode. 
     
     
         20 . The liquid crystal display device according to  claim 17 , wherein each of the three opening patterns has a same shape. 
     
     
         21 . The liquid crystal display device according to  claim 17 , wherein the liquid crystal display device is incorporated in one selected from the group consisting of a television receiver, a personal computer, a digital camera, a video camera, an image reproduction device, an electronic book, and a mobile phone.