| 摘要 |
An electron emission display device and a driving method thereof are provided to control ununiformity of brightness generated from the low gray scale portion by adjusting the pulse width of data signal. An electron emission display device includes a pixel unit(100), an image processing unit(400), a clock generator(500), and data and scan drivers(200,300). The pixel unit includes anode electrodes, which emit electrons corresponding to the voltage supplied to first and second electrodes, have a high voltage so as to collide the emitted electrons. The image processing unit, which includes a first lookup table for changing ratio between the brightness and gray scale of image signal through gamma compensation on the image signal, executes the gamma compensation on the image signal based on the first lookup table. The clock generator, which includes a second lookup table for storing the pulse width of clock, generates clock corresponding to the pulse width. The data driver supplies data signals corresponding to the clock generated from the clock generator to the first electrodes. The scan driver supplies scan signals to the second electrodes.
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