Patent ID: 8818073
Filing Date: 2014-08-26
Classification: G06K,G09G

Abstract:
1. A method of testing a display panel, the method comprising: fixing a target display panel to a receiving part of a jig; adjusting an image pickup angle of a single image pickup part using an adjusting part fixed to the jig; providing the target display panel with a test pattern to be displayed on the target display panel; obtaining test image data of the test pattern by picking up the test pattern using the image pickup part; extracting image defect information by analyzing the test image data using a defect extracting algorithm; and generating an evaluated data corresponding to a viewing angle of the target display panel based on the image pickup angle of the image pickup part and the display defect information, where the extracting the image defect information by analyzing the test image data comprises: converting the test image data into data having a luminance component and a chromaticity component; extracting a spot area by comparing a chromaticity of the converted data with a reference chromaticity using index values in pixels of the spot area; calculating a representative index value of the spot among the index values; and generating color defect information using the representative index value, wherein each of the index values “I” is defined by: wherein “u” and “v” are chromaticities according to C.I.E. 1976, and “u