Display device

Abstract

A display device includes a first substrate including a display region and a non-display region, the non-display region being positioned on an outside of the display region, a first dam in the non-display region of the substrate, the first dam including a first barrier and a first stopper, the first stopper being on the first barrier and having a concave groove formed thereon, and a first alignment layer covering the display region of the first substrate, at least a part of the first alignment layer extending to the non-display region and contacting a surface of the first stopper.

What is claimed is: 
     
         1 . A display device, comprising:
 a first substrate including a display region and a non-display region, the non-display region being positioned on an outside of the display region;   a first dam which is disposed in the non-display region of the first substrate;   a first layer which covers the first dam; and   a second layer covering the display region of the first substrate, at least a part of the second layer extending to the non-display region and contacting a surface of the first layer.   
     
     
         2 . The display device as claimed in  claim 1 , the first layer has a concave groove at a surface thereof. 
     
     
         3 . The display device as claimed in  claim 2 , at least a part of the second layer is disposed in the concave groove of the first layer. 
     
     
         4 . The display device as claimed in  claim 1 , wherein the first layer extends to form a closed curve surrounding the display region of the first substrate. 
     
     
         5 . The display device as claimed in  claim 1 , wherein:
 a minimum thickness of the first layer is equal to or greater than a thickness of a portion of the second layer that is in the display region of the first substrate, and   a portion of the second layer that contacts a surface of the first layer has a thickness that is greater than a thickness of a portion of the second layer that is in the display region of the first substrate.   
     
     
         6 . The display device as claimed in  claim 1 , further comprising:
 a second substrate opposite to the first substrate in a state where the second layer is interposed between the second substrate and the first substrate, the second substrate including a display region and a non-display region corresponding to the display region and the non-display region of the first substrate;   a second dam which is disposed in the non-display region of the second substrate;   a third layer which covers the second dam; and   a fourth layer covering the display region of the second substrate, at least a part of the fourth layer extending to the non-display region and contacting a surface of the third layer.   
     
     
         7 . The display device as claimed in  claim 6 , the third layer has a concave groove at a surface thereof. 
     
     
         8 . The display device as claimed in  claim 7 , wherein:
 a minimum thickness of the third layer is equal to or greater than a thickness of a portion of the fourth layer that is in the display region of the second substrate, and   a portion of the fourth layer that contacts a surface of the third layer has a thickness that is greater than a thickness of a portion of the fourth layer that is in the display region of the second substrate.   
     
     
         9 . The display device as claimed in  claim 1 , wherein:
 each of the first layer and the second layer includes an alignment material, and   the alignment material of the first layer is different from the alignment material of the second layer.   
     
     
         10 . The display device as claimed in  claim 9 , wherein
 the first layer has a lyophobic characteristic with respect to the second layer, and   the first layer includes at least one of a polyimide, a polyamic acid, and a polysiloxane.