Patent ID: 9554044
Date: 2017-01-24
CPC Classifications: G09G,H04N

Claim:
1. An image quality adjustment apparatus for obtaining correction data for correcting display unevenness of a display panel by capturing an image of the display panel using a camera, comprising: a test pattern signal control unit configured to generate a test pattern signal for causing the display panel to display a test pattern image; a relative position control unit configured to perform a control so that the display panel and the camera are positioned at a predetermined relative angle with respect to each other; an unevenness measurement unit configured to measure the display unevenness of the display panel based on image data captured by the camera; and a correction data generation unit configured to generate correction data for correcting the display unevenness of the display panel based on the display unevenness measured by the unevenness measurement unit, wherein when an image of the test pattern image displayed on the display panel is captured by the camera, the display panel and the camera are arranged at a predetermined relative angle with respect to each other so that a spatial frequency component of a moire pattern occurring in the captured image is shifted out of a region where a spatial frequency component of the display unevenness is present, and an influence of the spatial frequency component of the moire pattern is thereby removed.