| 摘要 |
PURPOSE: A display device and a control method thereof are provided to automatically change a preset picture quality related value according to a state of an inputted test pattern inputted from an external image device. CONSTITUTION: A storage unit(204) stores a reference level value about each area of a test pattern signal. A level value detecting unit(203) detects a level value about each preset area by processing a test pattern signal inputted through a signal input unit(202). A control unit(205) sets an image quality related adjustment value according to a signal characteristic of a connected external image device(100).
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