Brightness measuring method, luminance measuring apparatus and image quality adjusting technology using them

摘要

To provide a brightness measuring method capable of accurately measuring the brightness of each pixel even when the image of the pixel of the display panel overlaps on the imaging surface of the camera.SOLUTION: In the correction data generation method according to the present invention, when images of pixels of the display panel 2 are picked up by the solid-state image pickup device camera 7, display is made so that images of pixels on the image pickup surface of the camera 7 do not overlap each other The pixels of the panel 2 are lit and imaged by the camera 7 and the luminance of the central portion of the image of the pixel occupies the luminance of the entire image of the pixel based on the output of the pixel corresponding to the center portion of the imaged pixel image Calculating a central exposure coefficient indicative of the ratio and calculating the ratio of the peripheral exposure of the pixel to the total luminance of the image of the pixel based on the output of the pixel corresponding to the periphery of the image of the pixel, After calculating coefficients, all the pixels of the display panel 2 are turned on to capture an image by the camera 7, and the brightness of all the pixels of the display panel 2 is calculated based on the captured image, the central exposure coefficient and the peripheral exposure coefficient .(FIG.