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    • 1. 发明申请
    • Display panel drive apparatus
    • 显示面板驱动装置
    • US20070139304A1
    • 2007-06-21
    • US11585940
    • 2006-10-25
    • Takashi IwamiTomoaki Tatsumi
    • Takashi IwamiTomoaki Tatsumi
    • G09G3/28
    • G09G3/294G09G3/2022G09G2330/024G09G2330/06G09G2330/08
    • A display panel drive apparatus which reduces noise to thereby prevent malfunction. A first switch connects based on pixel data between one of column electrodes of a display panel and a power supply line to which a pulsed supply voltage is applied. A second switch connects between the one column electrode and a ground line based on the pixel data. The first and second switches are used to apply pixel data pulses based on the pixel data to the one column electrode. In this scheme, the pixel data having a lower frequency in the vertical direction of the screen allows the second switch to send a smaller current to the ground line when compared with a case of the pixel data having a higher frequency.
    • 一种降低噪声从而防止故障的显示面板驱动装置。 第一开关基于显示面板的列电极之一和施加脉冲电源电压的电源线之间的像素数据连接。 第二开关基于像素数据连接在一列电极和接地线之间。 第一和第二开关用于将像素数据的像素数据脉冲施加到一列电极。 在该方案中,与具有较高频率的像素数据的情况相比,在屏幕的垂直方向上具有较低频率的像素数据允许第二开关向接地线发送较小的电流。
    • 2. 发明申请
    • Drive circuit and display apparatus including the same
    • 驱动电路及其显示装置
    • US20070046659A1
    • 2007-03-01
    • US11498267
    • 2006-08-03
    • Takashi IwamiTomoaki Tatsumi
    • Takashi IwamiTomoaki Tatsumi
    • G09G5/00
    • G09G3/296G09G3/2965G09G2310/0289G09G2330/024
    • Disclosed is a drive circuit that allows an improvement of driving capability of switching devices in an output circuit that drives capacitive loads, and allows an improvement in power recovery efficiency. The drive circuit comprises: a second power supply circuit for supplying a second power supply voltage; and a plurality of output control circuits each for individually controlling switching operations of a first switching transistor and a second switching transistor. The second power supply circuit superimposes a DC voltage on a first power supply voltage from an output terminal of a first power supply circuit to generate the second power supply voltage, and supplies the generated voltage to the output control circuits. The first switching transistor selectively supplies an output voltage to its corresponding capacitive load in response to the first switching control signal supplied from its corresponding output control circuit.
    • 公开了一种驱动电路,其允许改善驱动容性负载的输出电路中的开关器件的驱动能力,并且允许提高功率恢复效率。 驱动电路包括:用于提供第二电源电压的第二电源电路; 以及多个输出控制电路,每个用于单独控制第一开关晶体管和第二开关晶体管的开关操作。 第二电源电路将第一电源电压上的直流电压从第一电源电路的输出端叠加,以产生第二电源电压,并将所产生的电压提供给输出控制电路。 响应于从其对应的输出控制电路提供的第一开关控制信号,第一开关晶体管选择性地将输出电压提供给其对应的容性负载。
    • 3. 发明授权
    • Display panel drive apparatus having a noise reducing driver
    • 具有降噪驱动器的显示面板驱动装置
    • US08077119B2
    • 2011-12-13
    • US11585940
    • 2006-10-25
    • Takashi IwamiTomoaki Tatsumi
    • Takashi IwamiTomoaki Tatsumi
    • G09G3/28
    • G09G3/294G09G3/2022G09G2330/024G09G2330/06G09G2330/08
    • A display panel drive apparatus which reduces noise to thereby prevent malfunction. A first switch connects based on pixel data between one of column electrodes of a display panel and a power supply line to which a pulsed supply voltage is applied. A second switch connects between the one column electrode and a ground line based on the pixel data. The first and second switches are used to apply pixel data pulses based on the pixel data to the one column electrode. In this scheme, the pixel data having a lower frequency in the vertical direction of the screen allows the second switch to send a smaller current to the ground line when compared with a case of the pixel data having a higher frequency.
    • 一种降低噪声从而防止故障的显示面板驱动装置。 第一开关基于显示面板的列电极之一和施加脉冲电源电压的电源线之间的像素数据连接。 第二开关基于像素数据连接在一列电极和接地线之间。 第一和第二开关用于将像素数据的像素数据脉冲施加到一列电极。 在该方案中,与具有较高频率的像素数据的情况相比,在屏幕的垂直方向上具有较低频率的像素数据允许第二开关向接地线发送较小的电流。
    • 5. 发明申请
    • Device for driving capacitive light emitting element
    • 用于驱动电容发光元件的装置
    • US20050088108A1
    • 2005-04-28
    • US10962514
    • 2004-10-13
    • Takashi Iwami
    • Takashi Iwami
    • H01L51/50G09G3/20G09G3/296G09G3/30H03K17/00H03K17/687H05B37/02
    • G09G3/2965G09G3/293G09G3/296
    • A driver device for a capacitive light emitting element includes a semiconductor integrated device and an electrical charge recovery circuit. The semiconductor integrated device includes a plurality of output buffers that supply a drive data-dependent voltage to each of a plurality of capacitive light emitting elements. The semiconductor integrated device also includes a plurality of switching elements that supply a high voltage to each of the output buffers. An external terminal of the semiconductor integrated device is commonly connected to respective nodes between the switching elements and output buffers. The electrical charge recovery circuit recovers electrical charge that has accumulated in the capacitive light emitting elements. The electrical charge recovery circuit is connected to the external terminal of the semiconductor integrated device.
    • 用于电容发光元件的驱动器件包括半导体集成器件和电荷恢复电路。 半导体集成器件包括多个输出缓冲器,其向多个电容发光元件中的每一个提供驱动数据相关电压。 半导体集成器件还包括向每个输出缓冲器提供高电压的多个开关元件。 半导体集成器件的外部端子通常连接到开关元件和输出缓冲器之间的相应节点。 电荷恢复电路恢复积聚在电容发光元件中的电荷。 电荷恢复电路连接到半导体集成器件的外部端子。
    • 7. 发明授权
    • Device for driving capacitive light emitting element
    • 用于驱动电容发光元件的装置
    • US07768474B2
    • 2010-08-03
    • US10962514
    • 2004-10-13
    • Takashi Iwami
    • Takashi Iwami
    • G09G3/28
    • G09G3/2965G09G3/293G09G3/296
    • A driver device for a capacitive light emitting element includes a semiconductor integrated device and an electrical charge recovery circuit. The semiconductor integrated device includes a plurality of output buffers that supply a drive data-dependent voltage to each of a plurality of capacitive light emitting elements. The semiconductor integrated device also includes a plurality of switching elements that supply a high voltage to each of the output buffers. An external terminal of the semiconductor integrated device is commonly connected to respective nodes between the switching elements and output buffers. The electrical charge recovery circuit recovers electrical charge that has accumulated in the capacitive light emitting elements. The electrical charge recovery circuit is connected to the external terminal of the semiconductor integrated device.
    • 用于电容发光元件的驱动器件包括半导体集成器件和电荷恢复电路。 半导体集成器件包括多个输出缓冲器,其向多个电容发光元件中的每一个提供驱动数据相关电压。 半导体集成器件还包括向每个输出缓冲器提供高电压的多个开关元件。 半导体集成器件的外部端子通常连接到开关元件和输出缓冲器之间的相应节点。 电荷恢复电路恢复积聚在电容发光元件中的电荷。 电荷恢复电路连接到半导体集成器件的外部端子。
    • 8. 发明申请
    • Drive circuit and display apparatus
    • 驱动电路及显示装置
    • US20060285399A1
    • 2006-12-21
    • US11453865
    • 2006-06-16
    • Takashi Iwami
    • Takashi Iwami
    • G11C7/10
    • G09G3/2965
    • Disclosed is a drive circuit that is capable of increasing the efficiency of power recovery by improving the drive capability of a switching element of an output circuit for driving a capacitive load, particularly the drive capability in a low voltage range. The drive circuit includes a totem-pole circuit having a totem-pole structure that first and second switching elements that are n-channel transistors are series connected, a power recovery circuit connected to the other controlled electrode of the first switching element and for charging and discharging electricity to and from the capacitive load Cp through the totem-pole circuit, and an output control circuit for controlling a switching of the first and second switching elements.
    • 公开了一种驱动电路,其能够通过提高用于驱动电容性负载的输出电路的开关元件的驱动能力,特别是在低电压范围内的驱动能力来提高功率恢复的效率。 驱动电路包括图形柱电路,其具有图形极结构,其中n沟道晶体管的第一和第二开关元件串联连接,功率恢复电路连接到第一开关元件的另一个受控电极, 通过图腾柱电路向电容性负载Cp放电,以及用于控制第一和第二开关元件的切换的输出控制电路。
    • 10. 发明授权
    • Display panel driving method
    • 显示面板驱动方式
    • US07053872B2
    • 2006-05-30
    • US10801638
    • 2004-03-17
    • Takashi Iwami
    • Takashi Iwami
    • G09G3/28
    • G09G3/2937G09G3/2029G09G3/2935G09G2310/0218G09G2330/021
    • A display panel driving apparatus capable of displaying images of good quality with a limited dither pattern. Each of pixel cells arranged on each display line in a plurality of adjacent display lines is forced to emit light at a different luminance level based on a weighting coefficient assigned to each of the display lines, wherein a weighting coefficient is assigned to each of the display lines such that an offset of luminance difference between pixel cells arranged on each of display lines adjacent to each other is held within a predetermined range across all the adjacent display lines in the display panel.
    • 一种显示面板驱动装置,能够以有限的抖动图案显示质量好的图像。 基于分配给每个显示行的加权系数,在多个相邻显示行中布置在每个显示行上的每个像素单元被强制以不同的亮度级发光,其中加权系数被分配给每个显示 使得布置在彼此相邻的每条显示线上的像素单元之间的亮度差的偏移量保持在显示面板中的所有相邻显示行上的预定范围内。