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公开(公告)号：US20050052477A1
公开(公告)日：2005-03-10
申请号：US10879047
申请日：2004-06-30
申请人： Yasuyuki Kudo , Akihito Akai , Takuya Eriguchi , Kazuo Okado , Hiroki Aizawa
发明人： Yasuyuki Kudo , Akihito Akai , Takuya Eriguchi , Kazuo Okado , Hiroki Aizawa
CPC分类号： G09G3/2011 , G09G3/2025 , G09G3/3614 , G09G3/3688 , G09G3/3696 , G09G2330/021
摘要： A driving circuit provided by the present invention is characterized in that the driving circuit selects a gray-scale voltage in accordance with high-order bits of display data from a group of gray-scale voltages with their voltage level varying step by step from fractional time period to fractional time period, which are set in advance, and outputs the selected gray-scale voltage during a time period between the start of a scanning period and a time at which a number assigned to a fractional time period matches quantitative information contained in low-order bits of the display data. In addition, the driving circuit provided by the present invention is also characterized in that the time ratio of the first fractional time period is set at a relatively high value while the time ratios of the second and subsequent fractional time periods are each set at a relatively low value.
摘要翻译： 本发明提供的驱动电路的特征在于，驱动电路根据来自一组灰度级电压的显示数据的高位选择灰度电压，其电压电平从分数时间逐步变化 预先设定的时间间隔到分数时间段，并且在扫描周期的开始和分配给分数时间段的时间之间的时间段期间输出所选择的灰度级电压与低包含的定量信息相匹配 显示数据的顺序位。 此外，本发明提供的驱动电路的特征还在于，将第一分数时间段的时间比设定为相对较高的值，同时将第二和后续分数时间段的时间比率设置为相对较高 低价值。
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公开(公告)号：US07616221B2
公开(公告)日：2009-11-10
申请号：US10879047
申请日：2004-06-30
申请人： Yasuyuki Kudo , Akihito Akai , Takuya Eriguchi , Kazuo Okado , Hiroki Aizawa
发明人： Yasuyuki Kudo , Akihito Akai , Takuya Eriguchi , Kazuo Okado , Hiroki Aizawa
CPC分类号： G09G3/2011 , G09G3/2025 , G09G3/3614 , G09G3/3688 , G09G3/3696 , G09G2330/021
摘要： A driving circuit provided by the present invention is characterized in that the driving circuit selects a gray-scale voltage in accordance with high-order bits of display data from a group of gray-scale voltages with their voltage level varying step by step from fractional time period to fractional time period, which are set in advance, and outputs the selected gray-scale voltage during a time period between the start of a scanning period and a time at which a number assigned to a fractional time period matches quantitative information contained in low-order bits of the display data. In addition, the driving circuit provided by the present invention is also characterized in that the time ratio of the first fractional time period is set at a relatively high value while the time ratios of the second and subsequent fractional time periods are each set at a relatively low value.
摘要翻译： 本发明提供的驱动电路的特征在于，驱动电路根据来自一组灰度级电压的显示数据的高位选择灰度电压，其电压电平从分数时间逐步变化 预先设定的时间间隔到分数时间段，并且在扫描周期的开始和分配给分数时间段的时间之间的时间段期间输出所选择的灰度级电压与低包含的定量信息相匹配 显示数据的顺序位。 此外，本发明提供的驱动电路的特征还在于，将第一分数时间段的时间比设定为相对较高的值，同时将第二和后续分数时间段的时间比率设置为相对较高 低价值。
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公开(公告)号：US20050122321A1
公开(公告)日：2005-06-09
申请号：US11006709
申请日：2004-12-08
申请人： Akihito Akai , Yasuyuki Kudo , Takuya Eriguchi , Kazuo Okado
发明人： Akihito Akai , Yasuyuki Kudo , Takuya Eriguchi , Kazuo Okado
CPC分类号： G09G3/3688 , G09G2310/0248 , G09G2310/027 , G09G2320/0209
摘要： A driver for driving a display device, which has signal lines arranged in a first direction, scanning lines arranged in a second direction intersecting with the first direction, and pixels provided to correspond to intersections of the signal lines and the scanning lines, each pixel having a pixel electrode connected to the signal line through a capacitance and a switching element whose first, second, and third terminals are connected respectively to the signal line, the scanning line, and the pixel electrode, comprises: a converter for converting inputted display data to a gray-scale voltage and outputting the gray-scale voltage to the signal lines; and a switching circuit for opening/closing a first electrical coupling provided between the signal line and the converter and a second electrical coupling provided between the signal lines, wherein one scanning period for scanning the scanning lines includes a first period during which the switching circuit closes the first electrical coupling and opens the second electrical coupling, and a second period during which the switching circuit opens the first electrical coupling and closes the second electrical coupling.
摘要翻译： 一种用于驱动显示装置的驱动器，其具有沿第一方向布置的信号线，沿与第一方向相交的第二方向布置的扫描线，以及与信号线和扫描线的交点相对应的像素，每个像素具有 通过电容连接到信号线的像素电极和其第一，第二和第三端子分别连接到信号线，扫描线和像素电极的开关元件，包括：转换器，用于将输入的显示数据转换为 灰度电压并将灰度电压输出到信号线; 以及用于打开/关闭设置在信号线和转换器之间的第一电耦合的开关电路和设置在信号线之间的第二电耦合，其中用于扫描扫描线的一个扫描周期包括开关电路闭合的第一周期 所述第一电耦合并且打开所述第二电耦合;以及第二周期，在所述第二周期期间，所述开关电路打开所述第一电耦合并闭合所述第二电耦合。
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公开(公告)号：US07760178B2
公开(公告)日：2010-07-20
申请号：US11255152
申请日：2005-10-21
申请人： Naoki Takada , Yasuyuki Kudo , Takuya Eriguchi , Akihito Akai , Kazuo Okado
发明人： Naoki Takada , Yasuyuki Kudo , Takuya Eriguchi , Akihito Akai , Kazuo Okado
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G2310/027 , G09G2320/0673
摘要： A liquid crystal display is provided with: a tap adjustment register for adjusting a gray scale level to a gray scale voltage in intermediate portions close to the end portions of the gamma characteristic; and a partial-voltage-ratio adjustment register for adjusting a ratio of a gray scale voltage among a plurality of gray scale levels in the intermediate portions close to the end portions of the gamma characteristic, in addition to an amplitude adjustment register for adjusting an amplitude of a gamma characteristic which determines a relation between gray scale levels and gray scale voltages or brightness levels on a display panel; a gradient adjustment register for adjusting a gradient of intermediate portions of the gamma characteristic while fixing end portions of the gamma characteristic; and a fine adjustment register for finely adjusting the intermediate portions of the gamma characteristic for each gray scale level.
摘要翻译： 液晶显示器具有：用于在靠近γ特性的端部的中间部分中将灰度级调整为灰度级电压的抽头调整寄存器; 以及分压比调节寄存器，用于调整靠近伽马特性的端部的中间部分中的多个灰度级之间的灰度电压的比例，以及用于调整幅度的幅度调整寄存器 确定显示面板上的灰度级与灰度级电压或亮度级之间的关系的伽马特性; 梯度调整寄存器，用于调整伽马特性的中间部分的梯度，同时固定伽马特性的端部; 以及精细调整寄存器，用于精细地调整每个灰度级的伽马特性的中间部分。
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公开(公告)号：US20060087483A1
公开(公告)日：2006-04-27
申请号：US11255152
申请日：2005-10-21
申请人： Naoki Takada , Yasuyuki Kudo , Takuya Eriguchi , Akihito Akai , Kazuo Okado
发明人： Naoki Takada , Yasuyuki Kudo , Takuya Eriguchi , Akihito Akai , Kazuo Okado
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G2310/027 , G09G2320/0673
摘要： A liquid crystal display is provided with: a tap adjustment register for adjusting a gray scale level to a gray scale voltage in intermediate portions close to the end portions of the gamma characteristic; and a partial-voltage-ratio adjustment register for adjusting a ratio of a gray scale voltage among a plurality of gray scale levels in the intermediate portions close to the end portions of the gamma characteristic, in addition to an amplitude adjustment register for adjusting an amplitude of a gamma characteristic which determines a relation between gray scale levels and gray scale voltages or brightness levels on a display panel; a gradient adjustment register for adjusting a gradient of intermediate portions of the gamma characteristic while fixing end portions of the gamma characteristic; and a fine adjustment register for finely adjusting the intermediate portions of the gamma characteristic for each gray scale level.
摘要翻译： 液晶显示器具有：用于在靠近γ特性的端部的中间部分中将灰度级调整为灰度级电压的抽头调整寄存器; 以及分压比调节寄存器，用于调整靠近伽马特性的端部的中间部分中的多个灰度级之间的灰度电压的比例，以及用于调整幅度的幅度调整寄存器 确定显示面板上的灰度级与灰度级电压或亮度级之间的关系的伽马特性; 梯度调整寄存器，用于调整伽马特性的中间部分的梯度，同时固定伽马特性的端部; 以及精细调整寄存器，用于精细地调整每个灰度级的伽马特性的中间部分。
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公开(公告)号：US07924252B2
公开(公告)日：2011-04-12
申请号：US11443224
申请日：2006-05-31
申请人： Akihito Akai , Yasuyuki Kudo , Takuya Eriguchi , Kazuo Okado
发明人： Akihito Akai , Yasuyuki Kudo , Takuya Eriguchi , Kazuo Okado
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/20 , G09G3/3614 , G09G3/3688 , G09G2310/0297 , G09G2320/0219 , G09G2320/0276 , G09G2320/0673 , G09G2330/021 , G09G2360/18
摘要： In consideration of the current leakage path of a liquid crystal panel and a signal line voltage fluctuation due to the current leakage path, a γ adjusting function (second driving method) is applied for each divided period in the first driving method. In a signal line driving unit, a gray scale voltage obtained by adding or subtracting a voltage fluctuation value different in each of the output periods of each gray scale is generated, and a gray scale voltage taking the voltage fluctuation value into consideration is applied to a signal line.
摘要翻译： 考虑到液晶面板的电流泄漏路径和由于电流泄漏路径引起的信号线电压波动，在第一驱动方法中，对于每个分割周期应用γ调整功能（第二驱动方法）。 在信号线驱动单元中，生成通过对每个灰度级的每个输出周期不同的电压波动值进行相加或减去而获得的灰度级电压，并且将考虑了电压波动值的灰度级电压应用于 信号线。
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公开(公告)号：US20070057884A1
公开(公告)日：2007-03-15
申请号：US11443224
申请日：2006-05-31
申请人： Akihito Akai , Yasuyuki Kudo , Takuya Eriguchi , Kazuo Okado
发明人： Akihito Akai , Yasuyuki Kudo , Takuya Eriguchi , Kazuo Okado
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/20 , G09G3/3614 , G09G3/3688 , G09G2310/0297 , G09G2320/0219 , G09G2320/0276 , G09G2320/0673 , G09G2330/021 , G09G2360/18
摘要： In consideration of the current leakage path of a liquid crystal panel and a signal line voltage fluctuation due to the current leakage path, a γ adjusting function (second driving method) is applied for each divided period in the first driving method. In a signal line driving unit, a gray scale voltage obtained by adding or subtracting a voltage fluctuation value different in each of the output periods of each gray scale is generated, and a gray scale voltage taking the voltage fluctuation value into consideration is applied to a signal line.
摘要翻译： 考虑到液晶面板的电流泄漏路径和由于电流泄漏路径引起的信号线电压波动，在第一驱动方法中，对于每个分割周期应用伽马调整功能（第二驱动方法）。 在信号线驱动单元中，生成通过对每个灰度级的每个输出周期不同的电压波动值进行相加或减去而获得的灰度级电压，并且将考虑了电压波动值的灰度级电压应用于 信号线。
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公开(公告)号：US20050190207A1
公开(公告)日：2005-09-01
申请号：US11109718
申请日：2005-04-20
申请人： Yasuyuki Kudo , Akihito Akai , Kazuo Okado , Toshimitsu Matsudo , Atsuhiro Higa
发明人： Yasuyuki Kudo , Akihito Akai , Kazuo Okado , Toshimitsu Matsudo , Atsuhiro Higa
CPC分类号： G09G3/2051 , G09G3/2018 , G09G3/2092 , G09G3/3648 , G09G5/02 , G09G2330/021 , G09G2360/18
摘要： A display driver for outputting gradation voltages corresponding to gradation data from an external device to pixels. The display driver includes a generator for generating a plurality of gradation voltages having a plurality of levels based on a reference voltage, and a selector for selecting at least one gradation voltage corresponding to the gradation data from the plurality of gradation voltages generated by the generator. The gradation data includes multi-bits for each color of red, green and blue, and the generator outputs or stops outputting each gradation voltage according to data for color reduction from the external device. The generator stops outputting at least one gradation voltage that is unnecessary for displaying as a result of the color reduction, when the color of the gradation data is reduced according to the data for color reduction.
摘要翻译： 一种用于将对应于来自外部设备的灰度数据的灰度电压输出到像素的显示驱动器。 显示驱动器包括：发生器，用于基于参考电压产生具有多个电平的多个灰度电压;以及选择器，用于从由发生器产生的多个灰度电压中选择与灰度数据相对应的至少一个灰度电压。 灰度数据包括红色，绿色和蓝色的每种颜色的多位，并且发生器根据来自外部设备的色彩还原的数据输出或停止输出每个灰度电压。 当根据用于减色的数据减少灰度数据的颜色时，发生器停止输出作为减色的结果而不必要显示的至少一个灰度电压。
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9.发明授权公开(公告)号：US07486303B2
公开(公告)日：2009-02-03
申请号：US10852198
申请日：2004-05-25
申请人： Akihito Akai , Yasuyuki Kudo , Kazuo Okado
发明人： Akihito Akai , Yasuyuki Kudo , Kazuo Okado
IPC分类号： G09G5/10
CPC分类号： G09G3/3291 , G09G3/3233 , G09G2300/0842 , G09G2310/027 , G09G2320/0276 , G09G2330/028
摘要： An object of the present invention is to provide a signal line driving circuit capable of easily and optimally adjusting the gamma characteristics of R, G, and B self-emitting element groups (e.g., organic EL element groups) such that each gamma characteristic matches the characteristics of the self-emitting panel by accommodating variations among the characteristics of the R, G, and B self-emitting element groups, thereby providing enhanced image quality and versatility.A self-emitting display driving circuit (a signal line driving circuit) 302 includes 3 gray-scale voltage generating circuits 311 and 3 control registers 308 for R, G, and B self-emitting element groups, respectively, and these gray-scale voltage generating circuits and control registers can be adjusted separately. This arrangement makes it possible to accommodate variations among the characteristics of the R, G, and B self-emitting element groups and thereby provide enhanced image quality on the self-emitting display.
摘要翻译： 本发明的目的是提供一种信号线驱动电路，其能够容易且最佳地调整R，G和B自发光元件组（例如，有机EL元件组）的伽马特性，使得每个伽马特性与 通过适应R，G和B自发光元件组的特性之间的变化，自发光面板的特性，从而提供增强的图像质量和多功能性。 自发光显示驱动电路（信号线驱动电路）302分别包括3个灰度电压发生电路311和3个用于R，G和B自发光元件组的控制寄存器308，并且这些灰度电压 生成电路和控制寄存器可以单独调整。 这种布置使得可以适应R，G和B自发光元件组的特性之间的变化，从而在自发光显示器上提供增强的图像质量。
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公开(公告)号：US20050007393A1
公开(公告)日：2005-01-13
申请号：US10852198
申请日：2004-05-25
申请人： Akihito Akai , Yasuyuki Kudo , Kazuo Okado
发明人： Akihito Akai , Yasuyuki Kudo , Kazuo Okado
CPC分类号： G09G3/3291 , G09G3/3233 , G09G2300/0842 , G09G2310/027 , G09G2320/0276 , G09G2330/028
摘要： An object of the present invention is to provide a signal line driving circuit capable of easily and optimally adjusting the gamma characteristics of R, G, and B self-emitting element groups (e.g., organic EL element groups) such that each gamma characteristic matches the characteristics of the self-emitting panel by accommodating variations among the characteristics of the R, G, and B self-emitting element groups, thereby providing enhanced image quality and versatility. A self-emitting display driving circuit (a signal line driving circuit) 302 includes 3 gray-scale voltage generating circuits 311 and 3 control registers 308 for R, G, and B self-emitting element groups, respectively, and these gray-scale voltage generating circuits and control registers can be adjusted separately. This arrangement makes it possible to accommodate variations among the characteristics of the R, G, and B self-emitting element groups and thereby provide enhanced image quality on the self-emitting display.
摘要翻译： 本发明的目的是提供一种信号线驱动电路，其能够容易且最佳地调整R，G和B自发光元件组（例如，有机EL元件组）的伽马特性，使得每个伽马特性与 通过适应R，G和B自发光元件组的特性之间的变化，自发光面板的特性，从而提供增强的图像质量和多功能性。 自发光显示驱动电路（信号线驱动电路）302分别包括3个灰度电压发生电路311和3个用于R，G和B自发光元件组的控制寄存器308，并且这些灰度电压 生成电路和控制寄存器可以单独调整。 这种布置使得可以适应R，G和B自发光元件组的特性之间的变化，从而在自发光显示器上提供增强的图像质量。
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