Image quality tester of electronic display device

Abstract

This invention provides an image quality inspection apparatus that can easily eliminate moire caused by an unemission part such as a barrier and an electrode or the like in a display device such as a plasma display device without using a high definition CCD camera and a high-speed image processor so as to detect a pixel defect such as a black point (unemitted pixel) or the like at a high-speed. The electronic display image quality inspection apparatus for imaging an electronic display screen to inspect a defect caused in pixels of an electronic display device by using the image, is provided with a means that moves an imaging element photographing the electronic displays screen by a prescribed distance in longitudinal and lateral directions, a means that integrates the image photographed by each movement in terms of frames, and a means that inspects a pixel defect of the electronic display device from the image whose frames are integrated.

Description

technical field [0001] The invention relates to an electronic display image quality inspection device, which can automatically inspect display defects of electronic display devices such as plasma displays. Background technique [0002] As an example of conventional technology, a plasma display image quality inspection device using a CCD (charge-coupled device) camera is shown in image 3 , as explained below. [0003] 1 is an electronic display device such as a plasma display, 2 is an imaging device such as a CCD camera, 3 is a signal generator for displaying an image on a plasma display, and 5 is image processing for inspecting pixel defects from a captured image on a plasma display screen Device, 6 is the display device of the color monitor of displaying or printing inspection result, printer, 7 is the operation device of this inspection device. [0004] In the past, such as image 3 As shown, the signal generator 3 outputs a white display pattern on the entire display sc...

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