Patent ID: 8773476
Filing Date: 2014-07-08
Classification: G09G

Abstract:
1. An image display system comprising: a computer configured to output a particular analog image signal for displaying a predetermined pattern in a particular frame, and subsequently output analog image signals corresponding to an executed application for displaying images in subsequent frames; and an image display device configured to display images corresponding to the application in the subsequent frames on the basis of said analog image signals corresponding to the application, the image display device further configured to display the predetermined pattern in the particular frame on the basis of the particular analog image signal, wherein said image display device includes: said particular image signal indicates the predetermined pattern to be displayed over a plurality of pixels for use in said gradation adjustment, and said computer also outputs information for instructing the start of said gradation adjustment to said controller, said information is provided to the image display device separate from the analog image signals corresponding to the application received by the image display device, upon receipt of said information, said controller makes a comparison between all the data of said particular digital image signal and a value included in a digital output range in said analog/digital converter, and carries out said gradation adjustment on the basis of the results of said comparison, and said images corresponding to the application in the subsequent frames are displayed in accordance with the gradation adjustment performed on the basis of the predetermined pattern, wherein the executed application is one of a plurality of applications installed in the computer, the computer outputting the same particular analog image signal regardless of whichever of the plurality of applications is executed.