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    • 1. 发明授权
    • Driving device of display device, display device and driving method of display device
    • 显示装置的驱动装置,显示装置和显示装置的驱动方法
    • US07369113B2
    • 2008-05-06
    • US11080848
    • 2005-03-16
    • Hajime WashioShinya TakahashiYuhiehiroh MurakamiSeijirou GyoutenShigeto Yoshida
    • Hajime WashioShinya TakahashiYuhiehiroh MurakamiSeijirou GyoutenShigeto Yoshida
    • G09G3/36
    • G09G3/3688G09G3/3677G09G2310/0289G09G2310/04
    • A driving device of a display device includes: a data signal line driving circuit including a shift register which has (i) multiple stages of flip-flops each of which operates in synchronism with a source clock signal and (ii) a level shifter for boosting the source clock signal whose amplitude is smaller than a driving voltage of each of the flip-flops so as to apply the driving voltage to the flip-flop, said data signal line driving circuit causing a sampling circuit to sample the image display data signal based on an output from the shift register so as to output the image display data signal to the data signal line; and control means for causing a frequency of the source clock signal in case of displaying an image to be higher than a frequency of the source clock signal in case of normal display in which multi-gradation display is performed in a full-color mode. Thus, it is possible to provide a driving device of a display device, a display device, and a driving method of the display device, whereby it is possible to reduce power consumption caused by an invalid current of the level shifter.
    • 显示装置的驱动装置包括:数据信号线驱动电路,包括移位寄存器,其具有(i)多个触发器级,每个触发器与源时钟信号同步操作;以及(ii)用于升压的电平移位器 所述源时钟信号的振幅小于每个触发器的驱动电压,以将驱动电压施加到触发器,所述数据信号线驱动电路使采样电路基于图像显示数据信号进行采样 在移位寄存器的输出上输出图像显示数据信号至数据信号线; 以及控制装置,用于在以全色模式进行多灰度显示的正常显示的情况下,在显示图像的情况下使源时钟信号的频率高于源时钟信号的频率。 因此,可以提供显示装置的驱动装置,显示装置和显示装置的驱动方法,从而可以降低由电平转换器的无效电流引起的功耗。
    • 2. 发明申请
    • Driving device of display device, display device and driving method of display device
    • 显示装置的驱动装置,显示装置和显示装置的驱动方法
    • US20050206604A1
    • 2005-09-22
    • US11080848
    • 2005-03-16
    • Hajime WashioShinya TakahashiYuhiehiroh MurakamiSeijirou GyoutenShigeto Yoshida
    • Hajime WashioShinya TakahashiYuhiehiroh MurakamiSeijirou GyoutenShigeto Yoshida
    • G02F1/133G09G3/20G09G3/36
    • G09G3/3688G09G3/3677G09G2310/0289G09G2310/04
    • A driving device of a display device includes: a data signal line driving circuit including a shift register which has (i) multiple stages of flip-flops each of which operates in synchronism with a source clock signal and (ii) a level shifter for boosting the source clock signal whose amplitude is smaller than a driving voltage of each of the flip-flops so as to apply the driving voltage to the flip-flop, said data signal line driving circuit causing a sampling circuit to sample the image display data signal based on an output from the shift register so as to output the image display data signal to the data signal line; and control means for causing a frequency of the source clock signal in case of displaying an image to be higher than a frequency of the source clock signal in case of normal display in which multi-gradation display is performed in a full-color mode. Thus, it is possible to provide a driving device of a display device, a display device, and a driving method of the display device, whereby it is possible to reduce power consumption caused by an invalid current of the level shifter.
    • 显示装置的驱动装置包括:数据信号线驱动电路,包括移位寄存器,其具有(i)多个触发器级,每个触发器与源时钟信号同步操作;以及(ii)用于升压的电平移位器 所述源时钟信号的振幅小于每个触发器的驱动电压,以将驱动电压施加到触发器,所述数据信号线驱动电路使采样电路基于图像显示数据信号进行采样 在移位寄存器的输出上输出图像显示数据信号到数据信号线; 以及控制装置,用于在以全色模式进行多灰度显示的正常显示的情况下,在显示图像的情况下使源时钟信号的频率高于源时钟信号的频率。 因此,可以提供显示装置的驱动装置,显示装置和显示装置的驱动方法,从而可以降低由电平转换器的无效电流引起的功耗。
    • 3. 发明申请
    • Driving device of display device, display device, and driving method of display device
    • 显示装置的驱动装置,显示装置以及显示装置的驱动方法
    • US20050206637A1
    • 2005-09-22
    • US11080849
    • 2005-03-16
    • Shinya TakahashiHajime WashioYuhichiroh MurakamiSeijirou Gyouten
    • Shinya TakahashiHajime WashioYuhichiroh MurakamiSeijirou Gyouten
    • G02F1/133G09G3/20G09G3/36
    • G09G3/3688G09G2310/0232G09G2310/04G09G2330/021
    • A driving device of a display device includes: a data signal line driving circuit, provided with a shift register having a level shifter for boosting a source clock signal so as to apply the source clock signal to a flip-flop, which causes a sampling circuit to directly sample a multi-gradation data signal based on each output from the shift register so as to output the multi-gradation data signal to each of a plurality of data signal lines; a control circuit for switching a full-screen display mode in which a whole of the display screen performs display and a partial-screen display mode in which only a part of the display screen performs time-sharing display; a data generating section for generating a constant voltage data writing signal made of a constant voltage; and a control circuit for outputting a selection signal for causing a nondisplay portion to directly sample the constant voltage data writing signal from the constant voltage data writing signal generation means so as to output the constant voltage data writing signal to a plurality of data signal lines. This makes it possible to provide a driving device of a display device, a display device, and a driving method of a display device, all of which make it possible to reduce power consumption in a waiting state.
    • 显示装置的驱动装置包括:数据信号线驱动电路,其具有移位寄存器,该移位寄存器具有用于升压源时钟信号的电平移位器,以将源时钟信号施加到触发器,这导致采样电路 基于来自移位寄存器的每个输出直接采样多灰度数据信号,以将多灰度数据信号输出到多条数据信号线中的每一条; 用于切换整个显示屏幕执行显示的全屏显示模式的控制电路和仅显示屏幕的一部分执行分时显示的部分屏幕显示模式; 数据生成部,其生成由恒定电压构成的恒定电压数据写入信号; 以及控制电路,用于输出用于使非显示部分从恒定电压数据写入信号产生装置直接采样恒定电压数据写入信号的选择信号,以将恒定电压数据写入信号输出到多条数据信号线。 这使得可以提供显示装置的驱动装置,显示装置和显示装置的驱动方法,所有这些都可以在等待状态下降低功耗。
    • 4. 发明授权
    • Driving device of display device, display device, and driving method of display device
    • 显示装置的驱动装置,显示装置以及显示装置的驱动方法
    • US07372445B2
    • 2008-05-13
    • US11080849
    • 2005-03-16
    • Shinya TakahashiHajime WashioYuhichiroh MurakamiSeijirou Gyouten
    • Shinya TakahashiHajime WashioYuhichiroh MurakamiSeijirou Gyouten
    • G09G3/36
    • G09G3/3688G09G2310/0232G09G2310/04G09G2330/021
    • A driving device of a display device includes: a data signal line driving circuit, provided with a shift register having a level shifter for boosting a source clock signal so as to apply the source clock signal to a flip-flop, which causes a sampling circuit to directly sample a multi-gradation data signal based on each output from the shift register so as to output the multi-gradation data signal to each of a plurality of data signal lines; a control circuit for switching a full-screen display mode in which a whole of the display screen performs display and a partial-screen display mode in which only a part of the display screen performs time-sharing display; a data generating section for generating a constant voltage data writing signal made of a constant voltage; and a control circuit for outputting a selection signal for causing a nondisplay portion to directly sample the constant voltage data writing signal from the constant voltage data writing signal generation means so as to output the constant voltage data writing signal to a plurality of data signal lines. This makes it possible to provide a driving device of a display device, a display device, and a driving method of a display device, all of which make it possible to reduce power consumption in a waiting state.
    • 显示装置的驱动装置包括:数据信号线驱动电路,其具有移位寄存器,该移位寄存器具有用于升压源时钟信号的电平移位器,以将源时钟信号施加到触发器,这导致采样电路 基于来自移位寄存器的每个输出直接采样多灰度数据信号,以将多灰度数据信号输出到多条数据信号线中的每一条; 用于切换整个显示屏幕执行显示的全屏显示模式的控制电路和仅显示屏幕的一部分执行分时显示的部分屏幕显示模式; 数据生成部,其生成由恒定电压构成的恒定电压数据写入信号; 以及控制电路,用于输出用于使非显示部分从恒定电压数据写入信号产生装置直接采样恒定电压数据写入信号的选择信号,以将恒定电压数据写入信号输出到多条数据信号线。 这使得可以提供显示装置的驱动装置,显示装置和显示装置的驱动方法,所有这些都可以在等待状态下降低功耗。