Cell cutting device and cell cutting method

Abstract

A cell cutting device and a cell cutting method are disclosed. The cell cutting device includes a loading stage configured to load a display sheet including a plurality of display cells, a rotation driving unit connected to the loading stage and configured to rotate the loading stage and to separate the display sheet into the plurality of display cells, and a position change unit connected to the loading stage and configured to change a position of the loading stage.

What is claimed is: 
     
         1 . A cell cutting device comprising:
 a loading stage configured to load a display sheet comprising a plurality of display cells;   a rotation driving unit connected to the loading stage and configured to rotate the loading stage and to separate the display sheet into the plurality of display cells; and   a position change unit connected to the loading stage and configured to change a position of the loading stage.   
     
     
         2 . The cell cutting device of  claim 1 , further comprising an adhesion unit connected to the loading stage and configured to adhere the display sheet and the plurality of display cells to the loading stage. 
     
     
         3 . The cell cutting device of  claim 2 , wherein the adhesion unit comprises an air intake part configured to intake air from an intake hole in the loading stage. 
     
     
         4 . The cell cutting device of  claim 1 , wherein the rotation driving unit comprises:
 a cam connected to the loading stage; and   a driving unit connected to the cam and configured to rotate the cam.   
     
     
         5 . The cell cutting device of  claim 4 , further comprising:
 a support unit configured to support the loading stage and to receive a rotation axis of the loading stage; and   a rotation member connected to the rotation axis and configured to rotate according to rotation of the cam.   
     
     
         6 . The cell cutting device of  claim 1 , wherein
 the loading stage comprises a plurality of loading stages,   the rotation driving unit comprises a plurality of rotation driving units arranged to correspond to the loading stages, and   the plurality of rotation driving units are configured to operate in sequential order.   
     
     
         7 . The cell cutting device of  claim 1 , wherein
 the loading stage comprises a plurality of loading stages, and   rotation angles of the plurality of loading stages differ from each other.   
     
     
         8 . The cell cutting device of  claim 1 , wherein
 the loading stage comprises a plurality of loading stages,   the position change unit comprises a plurality of position change units arranged to correspond to the loading stages, and   the plurality of position change units are located between respective adjacent ones of the plurality of loading stages and configured to separate the plurality of loading stages from each other.   
     
     
         9 . The cell cutting device of  claim 1 , further comprising a dummy removal unit separated from the loading stage and configured to remove a dummy cell of each of the plurality of display cells. 
     
     
         10 . The cell cutting device of  claim 9 , wherein
 the loading stage comprises a plurality of loading stages, and   the dummy removal unit comprises:
 a cutter unit between adjacent ones of the plurality of loading stages; and 
 a cutter driving unit configured to linearly move the cutter unit toward the plurality of loading stages. 
   
     
     
         11 . The cell cutting device of  claim 10 , wherein an end of the cutter unit is tapered. 
     
     
         12 . The cell cutting device of  claim 10 , wherein
 the cutter unit comprises a plurality of cutter units arranged to correspond to the adjacent ones of the plurality of loading stages, and   the dummy removal unit further comprises a position adjusting unit configured to linearly move the plurality of cutter units in a longitudinal direction of the display sheet.   
     
     
         13 . The cell cutting device of  claim 12 , wherein the position adjusting unit comprises:
 a cylindrical cam unit connected to the plurality of cutter units; and   a cam driving unit connected to the cylindrical cam unit and configured to rotate the cylindrical cam unit.   
     
     
         14 . The cell cutting device of  claim 1 , further comprising a crack forming unit configured to form a crack in the display sheet loaded onto the loading stage. 
     
     
         15 . A cell cutting method comprising:
 loading a display sheet comprising a plurality of display cells onto a loading stage;   forming a crack between the plurality of display cells;   separating the plurality of display cells from each other by rotating the loading stage in one direction; and   rotating the loading stage in a direction opposite to the one direction.   
     
     
         16 . The cell cutting method of  claim 15 , wherein
 the loading stage comprises a plurality of loading stages arranged to correspond to the display cells, and   the cell cutting method further comprises separating the plurality of loading stages from each other in a longitudinal direction of the display sheet.   
     
     
         17 . The cell cutting method of  claim 15 , wherein the loading of the display sheet comprises adhering the display sheet and the plurality of display cells to the loading stage. 
     
     
         18 . The cell cutting method of  claim 15 , wherein
 the loading stage comprises a plurality of loading stages arranged to correspond to the display cells, and   the rotating of the loading stage in the one direction comprises rotating the plurality of loading stages in sequential order.   
     
     
         19 . The cell cutting method of  claim 15 , wherein
 the loading stage comprises a plurality of loading stages arranged to correspond to the display cells, and   in the rotating of the loading stage in the one direction, rotation angles of the plurality of loading stages differ from each other.   
     
     
         20 . The cell cutting method of  claim 15 , further comprising removing a dummy region of each of the plurality of separated display cells by using a dummy removal unit.