Display device

Abstract

A display device is provided. The display device includes a first substrate, a second substrate, a liquid-crystal layer, a first electrode, and an opposite electrode. The liquid-crystal layer is disposed between the first substrate and the second substrate. The first electrode is disposed on the first substrate. The opposite electrode is disposed on the side of the second substrate that faces the first substrate. The first electrode includes a first main portion and a plurality of first extending portions. The first extending portions are connected to the first main portion, at least one of the first extending portions includes a first side, a second side, and a curved structure. The curved structure connects the first side to the second side, and the curved structure has a first curvature radius greater than zero.

What is claimed is: 
     
         1 . A display device, comprising:
 a first substrate;   a second substrate;   a liquid-crystal layer disposed between the first substrate and the second substrate; and   a first electrode disposed on the first substrate, wherein the first electrode comprises:
 a first main portion that is a cross-shaped electrode with a first horizontal axis and a first vertical axis; 
 a plurality of first extending portions connected to the first horizontal axis or the first vertical axis; and 
 a first peripheral portion, wherein part of the plurality of first extending portions are connected between the first peripheral portion and the first main portion, and other part of the plurality of first extending portions are not connected between the first peripheral portion and the first main portion; 
   wherein the first peripheral portion has an outer side, the outer side comprises at least one first curved side, a gap is formed between adjacent two of the plurality of first extending portions, and two ends of the gap have curved edges.   
     
     
         2 . The display device as claimed in  claim 1 , wherein the first peripheral portion is parallel to the first vertical axis of the first main portion. 
     
     
         3 . The display device as claimed in  claim 1 , further comprising a data line disposed on the first substrate and extending along a first direction, wherein the first peripheral portion extends along the first direction. 
     
     
         4 . The display device as claimed in  claim 1 , further comprising a second electrode, wherein the second electrode is separated from the first electrode, and the second electrode comprises:
 a second main portion that is a cross-shaped electrode with a second horizontal axis and a second vertical axis;   a plurality of second extending portions connected to the second horizontal axis or the second vertical axis; and   a second peripheral portion, wherein part of the plurality of second extending portions are connected between the second peripheral portion and the second main portion, and other part of the plurality of second extending portions are not connected between the second peripheral portion and the second main portion.   
     
     
         5 . The display device as claimed in  claim 4 , the second peripheral portion has an outer side, the outer side of the second peripheral portion comprises at least one second curved side. 
     
     
         6 . The display device as claimed in  claim 5 , wherein the other part of the plurality of first extending portions are adjacent to the other part of the plurality of second extending portions. 
     
     
         7 . The display device as claimed in  claim 6 , wherein one of the at least one first curved side is adjacent to one of the at least one second curved side. 
     
     
         8 . The display device as claimed in  claim 7 , wherein one of the other part of the plurality of first extending portions and one the other part of the plurality of second extending portions are separated by a first distance in an extending direction of the first vertical axis, the one of the at least one first curved side and the one of the at least one second curved side are separated by a second distance in the extending direction of the first vertical axis, and the first distance is different from the second distance. 
     
     
         9 . The display device as claimed in  claim 8 , wherein the first distance is greater than the second distance. 
     
     
         10 . The display device as claimed in  claim 4 , wherein the other part of the plurality of first extending portions and the other part of the plurality of second extending portions are staggered. 
     
     
         11 . The display device as claimed in  claim 4 , wherein a number of the other part of the plurality of first extending portions is the same as a number of the other part of the plurality of second extending portions. 
     
     
         12 . The display device as claimed in  claim 4 , further comprising a data line disposed on the first substrate and extending along a first direction, wherein the first peripheral portion and the second peripheral portion respectively extend along the first direction. 
     
     
         13 . The display device as claimed in  claim 4 , further comprising a first sub-pixel area and a second sub-pixel area adjacent to the first sub-pixel area, wherein the first electrode is located in the first sub-pixel area, and the second electrode is located in the second sub-pixel area. 
     
     
         14 . The display device as claimed in  claim 1 , wherein one of the other part of the plurality of first extending portions comprises a first side, a second side and a curved side, the curved side connects the first side and the second side, the first side is relatively adjacent to the first vertical axis of the first main portion, and the second side is relatively away from the first vertical axis of the first main portion. 
     
     
         15 . The display device as claimed in  claim 14 , wherein the curved side comprises a first round corner connected to the first side and a second round corner connected to the second side, and a first curvature radius of the first round corner is different from a second curvature radius of the second round corner. 
     
     
         16 . The display device as claimed in  claim 15 , wherein the second curvature radius is smaller than the first curvature radius. 
     
     
         17 . The display device as claimed in  claim 15 , wherein the first curvature radius of the first round corner is smaller than 10 μm. 
     
     
         18 . The display device as claimed in  claim 1 , wherein a horizontal width of one of the other part of the plurality of first extending portions away from the first main portion is shorter than a horizontal width of the one of the other part of the plurality of first extending portions adjacent to the first main portion. 
     
     
         19 . The display device as claimed in  claim 1 , further comprising a scan line disposed on the first substrate, wherein a width of the first main portion in an extending direction of the scan line is greater than a width of at least one of the plurality of first extending portions in the extending direction of the scan line.