Visual inspector for inspecting flat panel display device and visual inspecting method using the same

Abstract

A visual inspector for inspecting a flat panel display device and a visual inspecting method using the same are disclosed. The visual inspector includes an inspection unit including a base frame and a loading stage rotatably coupled to the base frame to load a display panel on a front side thereof and to transmit a light to the flat panel device; a reflective illumination unit installed in the upper space of the inspection unit to illuminate the display panel loaded on the front side of the loading stage; and a transparent illumination unit coupled to the rear side of the loading stage of the inspection unit to illuminate the display panel loaded on the front side of the loading stage.

1 - 9 . (canceled) 
     
     
         10 . A visual inspecting method using a visual inspector for inspecting a flat panel display device comprising:
 providing a display panel to a front side of a loading stage;   inclining the loading stage at a first predetermined angle;   illuminating a front side of the display panel to inspect a quality of the display panel;   inclining the loading stage at a second predetermined angle; and   illuminating a rear side of the display panel to inspect the quality of the display panel.   
     
     
         11 . The visual inspecting method using a visual inspector for inspecting a flat panel display device according to  claim 10 , wherein illuminating a front side of the display panel is carried out prior to illuminating a rear side of the display panel. 
     
     
         12 . The visual inspecting method using a visual inspector for inspecting a flat panel display device according to  claim 10 , wherein the illuminating a front side of the display panel is carried out after illuminating a rear side of the display panel. 
     
     
         13 . The visual inspecting method using a visual inspector for inspecting a flat panel display device according to  claim 10 , wherein illuminating a front side of the display panel and illuminating a rear side of the display panel are carried out simultaneously. 
     
     
         14 . The visual inspecting method using a visual inspector for inspecting a flat panel display device according to  claim 10 , wherein illuminating a front side of the display panel includes reflecting light emitted by a reflective illumination unit. 
     
     
         15 . The visual inspecting method using a visual inspector for inspecting a flat panel display device according to  claim 10 , wherein illuminating a front side of the display panel includes polarizing emitted light by a reflective illumination unit. 
     
     
         16 . The visual inspecting method using a visual inspector for inspecting a flat panel display device according to  claim 10 , wherein illuminating a rear side of the display panel includes controlling a second illumination unit to emit light. 
     
     
         17 . The visual inspecting method using a visual inspector for inspecting a flat panel display device according to  claim 10 , wherein the second predetermined angle is about  90  degrees.