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    • 43. 发明授权
    • Display apparatus and display method
    • 显示装置和显示方法
    • US06570625B1
    • 2003-05-27
    • US09226124
    • 1999-01-07
    • Kazuto KuyamaManabu Suzuki
    • Kazuto KuyamaManabu Suzuki
    • H04N544
    • G09G1/167G09G1/002
    • Anode voltages A′ and B′ corresponding to video signals A and B are switched by a first switch and supplied to an anode. Cut-off voltages A and B corresponding to the video signals A and B are switched by a second switch and added to a video signal by an adder. A resultant signal is supplied to a cathode. In a CRT, the luminance rises in association with the step-down of the cut-off voltage and the step-up of the anode voltage and the resolution rises in association with the step-up of the cut-off voltage and the step-up of the anode voltage. The first and second switches are switched in accordance with the format of the input video signal respectively, thereby properly selecting the anode voltage which is applied to the CRT and the cut-off voltage. The video image can be displayed by the CRT at the luminance and resolution according to the video signal without changing a driving voltage.
    • 对应于视频信号A和B的阳极电压A'和B'由第一开关切换并提供给阳极。 对应于视频信号A和B的截止电压A和B由第二开关切换并通过加法器加到视频信号上。 得到的信号被提供给阴极。 在CRT中,与截止电压的降压和阳极电压的升压相关联的亮度升高,并且分辨率随着截止电压的升压和步进电压的升高而升高, 阳极电压升高。 根据输入视频信号的格式分别切换第一和第二开关,从而适当地选择施加到CRT的阳极电压和截止电压。 视频图像可以由CRT根据视频信号以亮度和分辨率显示,而不改变驱动电压。