Liquid crystal lens panel and method of manufacturing display device using the same

Abstract

A liquid crystal lens panel includes a first substrate including a lens area, a non-lens area disposed adjacent to the lens area, and a cutting area disposed adjacent to the non-lens area and including a liquid crystal driving part, a second substrate disposed opposite to the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate, where the liquid crystal driving part applies a liquid crystal driving voltage to the liquid crystal layer through the non-lens area, and liquid crystal molecules of the liquid crystal layer are driven substantially in a vertical direction by the liquid crystal driving voltage.

What is claimed is: 
     
         1 . A liquid crystal lens panel comprising:
 a first substrate which includes a lens area, a non-lens area disposed adjacent to the lens area, and a cutting area disposed adjacent to the non-lens area and including a liquid crystal driving part;   a second substrate disposed opposite to the first substrate; and   a liquid crystal layer interposed between the first substrate and the second substrate,   wherein the liquid crystal driving part applies a liquid crystal driving voltage to the liquid crystal layer through the non-lens area, and   liquid crystal molecules of the liquid crystal layer are driven substantially in a vertical direction by the liquid crystal driving voltage.   
     
     
         2 . The liquid crystal lens panel of  claim 1 , wherein
 the first substrate comprises a plurality of first electrodes disposed in the lens area, extending in a first direction, and spaced apart from each other, and   the second substrate comprises a common electrode disposed opposite to the first electrodes.   
     
     
         3 . The liquid crystal lens panel of  claim 2 , wherein
 the liquid crystal driving voltage comprises a first voltage applied to the first electrodes and a second voltage applied to the common electrode, and   the liquid crystal molecules of the liquid crystal layer are driven substantially in the vertical direction by an electric field generated by the first voltage and the second voltage.   
     
     
         4 . The liquid crystal lens panel of  claim 3 , wherein the first substrate further comprises a plurality of data pads disposed in the non-lens area and connected to the first electrodes. 
     
     
         5 . The liquid crystal lens panel of  claim 4 , wherein the liquid crystal driving part comprises:
 a plurality of first lines connected to the first electrodes, respectively, through the data pads;   a first common line connected to the first lines;   a first pad which receives the first voltage;   a first sub-line connected to the first pad and the first common line;   a sub-common line connected to the common electrode through the non-lens area; and   a second pad connected to the sub-common line and which receives the second voltage.   
     
     
         6 . The liquid crystal lens panel of  claim 5 , wherein
 the cutting area comprises a plurality of intermediate areas corresponding to areas between the data pads, and   the first pad and the second pad are disposed in one of the intermediate areas.   
     
     
         7 . The liquid crystal lens panel of  claim 1 , wherein the liquid crystal layer comprises electrically controlled birefringence mode liquid crystal, an optically compensated bend mode liquid crystal, or a hybrid aligned nematic mode liquid crystal. 
     
     
         8 . The liquid crystal lens panel of  claim 1 , wherein
 the first substrate comprises:
 a plurality of first electrodes disposed in the lens area, extending in a first direction, and spaced apart from each other; 
 an insulating layer disposed on the first electrodes; and 
 a plurality of second electrodes extending in the first direction on the insulating layer in the lens area, spaced apart from each other, and alternately arranged with the first electrodes, 
   the second substrate comprises a common electrode, and   the liquid crystal driving voltage comprises a first voltage applied to the first and second electrodes and a second voltage applied to the common electrode.   
     
     
         9 . The liquid crystal lens panel of  claim 8 , wherein a height difference between an upper surface of the first electrodes and an upper surface of the insulating layer is equal to or smaller than about 2000 angstroms. 
     
     
         10 . The liquid crystal lens panel of  claim 8 , wherein the first substrate further comprises a plurality of data pads connected to the first electrodes and the second electrodes in the non-lens area. 
     
     
         11 . The liquid crystal lens panel of  claim 10 , wherein the liquid crystal driving part comprises;
 a plurality of first lines connected to the first electrodes through the data pads;   a plurality of second lines connected to the second electrodes through the data pads;   a first common line connected to the first lines;   a second common line connected to the second lines;   a first pad which receives the first voltage;   a first sub-line connected to the first pad and the first common line;   a second sub-line connected to the first pad and the second common line;   a sub-common line connected to the common electrode through the non-lens area; and   a second pad connected to the sub-common line and which receives the second voltage.   
     
     
         12 . A method of manufacturing a display device, comprising:
 preparing a display panel;   coating an adhesive member on the display panel;   attaching a liquid crystal lens panel including a liquid crystal layer to the display panel using the adhesive member;   driving liquid crystal molecules of the liquid crystal layer substantially in a vertical direction; and   irradiating an ultraviolet light onto the adhesive member through the liquid crystal lens panel to cure the adhesive member.   
     
     
         13 . The method of  claim 12 , wherein the liquid crystal lens panel comprises:
 a first substrate which includes a lens area, a non-lens area, and a cutting area including a liquid crystal driving part;   a second substrate disposed opposite to the first substrate; and   the liquid crystal layer interposed between the first substrate and the second substrate,   wherein the liquid crystal driving part applies a liquid crystal driving voltage to the liquid crystal layer through the non-lens area, and   the liquid crystal molecules of the liquid crystal layer are driven substantially in the vertical direction by the liquid crystal driving voltage.   
     
     
         14 . The method of  claim 13 , wherein
 the first substrate comprises a plurality of first electrodes disposed in the lens area, extending in a first direction, and spaced apart from each other,   the second substrate comprises a common electrode disposed opposite to the first electrodes,   the liquid crystal driving voltage comprises a first voltage applied to the first electrodes and a second voltage applied to the common electrode, and   the liquid crystal molecules of the liquid crystal layer are driven substantially in the vertical direction by an electric field generated by the first voltage and the second voltage.   
     
     
         15 . The method of  claim 14 , wherein the first substrate further comprises a plurality of data pads disposed in the non-lens area and connected to the first electrodes. 
     
     
         16 . The method of  claim 15 , wherein the liquid crystal driving part comprises:
 a plurality of first lines respectively connected to the first electrodes through the data pads;   a first common line connected to the first lines;   a first pad which receives the first voltage;   a first sub-line connected to the first pad and the first common line;   a sub-common line connected to the common electrode through the non-lens area; and   a second pad connected to the sub-common line and which receives the second voltage.   
     
     
         17 . The method of  claim 16 , wherein
 the cutting area comprises a plurality of intermediate areas corresponding to areas between the data pads, and   the first pad and the second pad are disposed in one of the intermediate areas.   
     
     
         18 . The method of  claim 16 , further comprising:
 curing the adhesive member; and   removing the cutting area.   
     
     
         19 . The method of  claim 18 , further comprising:
 connecting a plurality of driving integrated circuits to the data pads to apply lens driving voltages to the first electrodes after the cutting area is removed.   
     
     
         20 . The method of  claim 19 , wherein the liquid crystal layer operates as a Fresnel lens by the lens driving voltages applied to the first electrodes from the driving integrated circuits.