Patent ID: 7336245

Claim:
A display comprising: a display panel having first electrodes, second electrodes, and an electron emission source provided on an area in which the first electrodes and the second electrodes cross each other; a first electrode driver for driving the first electrodes; a second electrode driver for driving the second electrodes; and a controller for controlling the first electrode driver and the second electrode driver using Pulse Width Modulation, wherein the controller comprises: a memory unit for externally receiving a first vertical synchronous signal, a first horizontal synchronous signal, and an input signal comprising video data, and storing the video data for an image; a synchronous signal controller for generating a control signal comprising an on-time information of an on-time for representing gray scales of the image and a blank-time information of a blank-time for representing no gray scales of the image; a synchronous signal generator for generating a second horizontal synchronous signal based on the control signal generated by the synchronous controller; and a memory controller for controlling the output of the image stored in the memory unit based on the second horizontal synchronous signal input by the synchronous signal generator.