Patent ID: 6281869
Filing Date: 2001-08-28
Classification: G09G

Abstract:
A display device, comprising:a driving circuit including,pulse generating means for generating a copying second clock pulse signal within one horizontal period in addition to an original clock pulse signal generated upon provision of the number of vertical pixels identical to a predetermined number of vertical pixels of a display unit when a video signal having the number of vertical pixels smaller than the predetermined number of vertical pixels is displayed in enlarged form on the display unit to which the predetermined number of vertical pixels is set and repeating the generation of these clock pulse signals every one horizontal periods;gate clock generating means for receiving the clock pulse signal from said pulse generating means to thereby generate a gate clock signal obtained by superimposing the total original clock pulse signal and the second clock pulse signal corresponding to a number obtained by subtracting the number of the vertical pixels of the video signal from the number of the vertical pixels of the display unit; andgate driving means for receiving the gate clock signal from said gate clock generating means to thereby generate a plurality of gate driving signals which are respectively brought to high levels with different timings in association with respective pulses in the gate clock signal and have high level periods equal in length to one another.