Apparatus and method for testing liquid crystal display panel

Details Apparatus and method for testing liquid crystal display panel Apparatus and method for testing liquid crystal display panel

2007-09-18

2007-09-18

Stafira, Michael P. (Department: 2886)

Optics: measuring and testing

By configuration comparison

With comparison to master, desired shape, or reference voltage

Reexamination Certificate

active

10322422

ABSTRACT:
A device and a method for testing a liquid crystal display panel are disclosed in the present invention, which enable to conveniently inspect a cutting plane of an individual unit liquid crystal panel. The apparatus includes a first memory unit storing a reference image of an end portion of a reference panel taken through a camera, a second memory unit storing an observed image of an end portion of a cut unit liquid crystal display panel taken through the camera, a comparison/computation unit computing a difference value by comparing the reference image and the observed image, and a display unit displaying the difference value of the comparison/computation unit.

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