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71. 发明申请

US20060181502A1 Signal line driving circuit and image display device 审中-公开
公开(公告)号：US20060181502A1
公开(公告)日：2006-08-17
申请号：US11402352
申请日：2006-04-11
申请人： Yasushi Kubota , Hajime Washio , Kazuhiro Maeda , Graham Cairns , Michael Brownlow
发明人： Yasushi Kubota , Hajime Washio , Kazuhiro Maeda , Graham Cairns , Michael Brownlow
IPC分类号： G09G3/36
CPC分类号： G09G3/3677 , G09G2310/0289
摘要： A signal line driving circuit includes a shift register having a plurality of shift circuits, each of which shifts a start pulse successively to the next stage, synchronizing with the timing of a clock signal. In this signal line driving circuit, shift pulses are outputted from an AND gate based on output pulses of two adjacent shift circuits. Meanwhile, a width specifying pulse for specifying a pulse width of the shift pulse is inputted via a transistor whose ON/OFF operation is controlled by the shift pulse. A logical operation circuit operates an AND of the shift pulse and the width specifying pulse and outputs the result of operation to a signal line. When the shift pulse is non-active, the transistor becomes OFF, which causes the signal line transmitting the width specifying pulse to be disconnected from the signal line driving circuit, thereby reducing a capacitive load of wiring. As a result, reduction of a parasitic capacitance of the wiring, reduction in the number of elements, reduction in the size of an amplitude of an input signal, etc. in the signal line driving circuit are attained.

72. 发明授权

US07034795B2 Matrix image display device 失效
公开(公告)号：US07034795B2
公开(公告)日：2006-04-25
申请号：US10208757
申请日：2002-08-01
申请人： Kazuhiro Maeda , Hajime Washio , Yasushi Kubota
发明人： Kazuhiro Maeda , Hajime Washio , Yasushi Kubota
IPC分类号： G06G3/36
CPC分类号： G09G3/3648 , G09G3/3614 , G09G2310/021 , G09G2310/0251 , G09G2320/0209 , G09G2340/0414
摘要： The scanning signal line driving circuit sequentially carries out active driving with respect to each set of a certain number of scanning signal lines which are adjacent to each other in a vertical direction, and when carrying out an actual writing with respect to a first set of a certain number of pixel lines adjacent to each other in the vertical direction, carries out pre-charging with respect to a second set of the certain number of pixel lines to which the actual writing is carried out next with a potential of a same polarity as that of the first set of the certain number of pixel lines. In this manner, it is possible to provide a matrix image display device with no irregularities in display quality and is capable of matching the apparent vertical resolution of the device to that of the image source, when using an image signal of vertical resolution lower than the maximum physical vertical resolution of the device.

73. 发明授权

US06836269B2 Precharge circuit and image display device using the same 有权
标题翻译：预充电电路和使用其的图像显示装置
公开(公告)号：US06836269B2
公开(公告)日：2004-12-28
申请号：US09795658
申请日：2001-02-28
申请人： Kazuhiro Maeda , Hajime Washio , Yasushi Kubota , Yasuyoshi Kaise , Michael James Brownlow , Graham Andrew Cairns
发明人： Kazuhiro Maeda , Hajime Washio , Yasushi Kubota , Yasuyoshi Kaise , Michael James Brownlow , Graham Andrew Cairns
IPC分类号： G09G500
CPC分类号： G09G3/3688 , G09G2310/0248 , G09G2310/0289 , G09G2330/021
摘要： A precharge control circuit constituted by (1) a latch circuit mounted in a precharge circuit and (2) a level shifter circuit of a current drive type controlled through an output of the latch circuit is included. The precharge control circuit changes the latch circuit to an active state to cause the level shifter circuit of a current drive type to operate only during a precharge period and also during immediately preceding and succeeding periods, and outside these periods, changes the latch circuit in a non-active state and the level shifter circuit of a current drive type in an operating state to save power consumption in the level shifter circuit. This enables a low-power-consuming precharge circuit, as well as a low-power-consuming image display device with a high quality display capability, to be offered.
摘要翻译：一种预充电控制电路，包括：（1）安装在预充电电路中的锁存电路和（2）通过锁存电路的输出控制的电流驱动型电平移位电路。预充电控制电路将锁存电路改变为有效状态，使得电流驱动类型的电平移动电路仅在预充电期间以及在紧接之前和之后周期期间操作，并且在这些周期之外，将锁存电路改变为非活动状态和电流驱动类型的电平移位器电路，以在电平移位器电路中节省功耗。这使得能够提供低功耗预充电电路以及具有高质量显示能力的低功耗图像显示装置。

74. 发明授权

US06724363B1 Two-way shift register and image display device using the same 有权
公开(公告)号：US06724363B1
公开(公告)日：2004-04-20
申请号：US09568889
申请日：2000-05-11
申请人： Masakazu Satoh , Yasushi Kubota , Hajime Washio , Kazuhiro Maeda , Michael James Brownlow , Graham Andrew Cairns
发明人： Masakazu Satoh , Yasushi Kubota , Hajime Washio , Kazuhiro Maeda , Michael James Brownlow , Graham Andrew Cairns
IPC分类号： G09G336
CPC分类号： G11C19/00 , G09G3/3674 , G09G3/3685 , G09G2310/0283 , G09G2310/0289 , G09G2330/021 , G11C19/28
摘要： A shift register is provided with a shift register section composed of a plurality of stages of flip-flops that operate in synchronization with a clock signal, and level shifters for boosting a start signal lower than a driving voltage and for applying the same to both ends of the shift register section, and the shift register is capable of switching the shift direction in accordance with the switching signal. The foregoing level shifters are current-driving-type level shifters that can operate even in the case where the transistor characteristics are inferior or in the case of fast operations, and that can carry out level shifting even with a start signal having a small amplitude. Furthermore, the foregoing level shifters are provided at both ends of the shift register section, respectively, and one of the same stops operating in accordance with a switching signal, so that consumed power should decrease. Consequently, there can be provided a shift register that is capable of shifting in two directions, that can normally operate even with an input signal having a small amplitude, and that therefore consumes less electric power.

75. 发明授权

US06693616B2 Image display device, method of driving thereof, and electronic equipment 有权
标题翻译：图像显示装置，其驱动方法和电子设备
公开(公告)号：US06693616B2
公开(公告)日：2004-02-17
申请号：US09782260
申请日：2001-02-14
申请人： Jun Koyama , Munehiro Azami , Yasushi Kubota , Hajime Washio
发明人： Jun Koyama , Munehiro Azami , Yasushi Kubota , Hajime Washio
IPC分类号： G09G336
CPC分类号： G09G3/3688 , G09G2310/0259 , G09G2310/027 , G09G2310/0297
摘要： The surface area occupied by a digital type signal line driver circuit in an image display device is large, and this is an impediment to reducing the size of the display device. A memory circuit within a signal line driver circuit is made common among n signal lines (where n is a natural number greater than or equal to 2). One horizontal scan period is divided into n divisions, and all signal lines can be driven by performing processing with respect to signal lines differing by memory circuit and D/A converter circuit, respectively, during the period of each division. It thus becomes possible to make 1/n as many memory circuits and D/A conversion circuits within the signal line driver circuit as in a conventional example.
摘要翻译：图像显示装置中的数字式信号线驱动电路所占据的表面积较大，这是减小显示装置尺寸的障碍。信号线驱动电路内的存储电路在n条信号线（其中n为大于或等于2的自然数）之间是共同的。一个水平扫描周期被划分为n个分区，并且在每个划分期间分别通过对与存储电路和D / A转换器电路不同的信号线执行处理来驱动所有的信号线。因此，与现有例一样，能够使信号线驱动电路内的1 / n的存储电路和D / A转换电路成为可能。

76. 发明授权

US06617878B2 Voltage level shifter and display device 有权
公开(公告)号：US06617878B2
公开(公告)日：2003-09-09
申请号：US10216347
申请日：2002-08-09
申请人： Michael James Brownlow , Graham Andrew Cairns , Yasushi Kubota , Hajime Washio
发明人： Michael James Brownlow , Graham Andrew Cairns , Yasushi Kubota , Hajime Washio
IPC分类号： H03K190175
CPC分类号： H03K3/356113
摘要： A voltage level shifter comprises an input stage in the form of cross-coupled source followers and an output stage in the form of an amplifier AMP, which may have single-ended or differential inputs. The source followers comprise the transistors M1 and M2 and the transistors M3 and M4. Differential inputs IN and !IN are connected to the gates of the transistors M2 and M4. A bias voltage is supplied to the gate of the transistor M1 from a node B to which the drain of the transistor M3 and the source of the transistor M4 are connected. Similarly, a bias voltage is supplied to the gate of the transistor M3 from a node A to which the drain of the transistor M1 and the source of the transistor M2 are connected.

77. 发明授权

US06559824B1 Matrix type image display device 有权
标题翻译：矩阵式图像显示装置
公开(公告)号：US06559824B1
公开(公告)日：2003-05-06
申请号：US09666376
申请日：2000-09-20
申请人： Yasushi Kubota , Hajime Washio , Kazuhiro Maeda , Graham Andrew Cairns , Michael James Brownlow
发明人： Yasushi Kubota , Hajime Washio , Kazuhiro Maeda , Graham Andrew Cairns , Michael James Brownlow
IPC分类号： G09G336
CPC分类号： G09G3/3688 , G09G3/20 , G09G3/3677 , G09G2300/0408 , G09G2310/0232 , G09G2310/0248 , G09G2310/0289 , G09G2330/021
摘要： A matrix type image display device has a structure in which the internal states of all of shift registers (the outputs of flip-flops included in the shift registers) in a scanning signal line drive circuit and data signal line drive circuit are made inactive by the use of an initializing signal generated by a NAND gate based on a combination of signals, which do not affect a displayed image, from a control circuit. With this structure, since the shift registers are initialized when power is supplied, it is possible to prevent an indefinite state when power is supplied. Therefore, by selectively inputting signals (such as clock signals) for controlling the shift registers, it is possible to prevent an excessive increase in the signal line load. Consequently, the operation of the image display device can be stabilized. Moreover, it is not necessary to improve the drive ability of an external IC incorporating the control circuit and the supply ability of a power supply circuit, thereby achieving a reduction in the cost and power consumption of the external IC.
摘要翻译：矩阵型图像显示装置具有这样的结构，其中扫描信号线驱动电路和数据信号线驱动电路中的所有移位寄存器（包括在移位寄存器中的触发器的输出）的内部状态由基于不影响显示图像的信号的组合，从NAND门产生的初始化信号从控制电路使用。利用这种结构，由于在供电时初始化了移位寄存器，所以可以在供电时防止不确定的状态。因此，通过选择性地输入用于控制移位寄存器的信号（例如时钟信号），可以防止信号线负载的过度增加。因此，能够使图像显示装置的动作稳定。此外，不需要提高包含控制电路的外部IC的驱动能力和电源电路的供给能力，从而实现了外部IC的成本和功耗的降低。

78. 发明授权

US5594466A Driving device for a display panel and a driving method of the same 失效
标题翻译：显示面板的驱动装置及其驱动方法
公开(公告)号：US5594466A
公开(公告)日：1997-01-14
申请号：US132651
申请日：1993-10-05
申请人： Kunihiko Yamamoto , Kiyohisa Matsui , Yutaka Ishii , Norio Yasunishi , Toshihiro Nakamura , Hajime Washio , Koki Taniguchi
发明人： Kunihiko Yamamoto , Kiyohisa Matsui , Yutaka Ishii , Norio Yasunishi , Toshihiro Nakamura , Hajime Washio , Koki Taniguchi
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3625
摘要： A driving device for a display apparatus having excellent contrast and a high display quality without crosstalk and display irregularities, and a driving method for the same are provided. In the driving device, scanning signals and data signals having a plurality of periodical inactive portions in one frame are applied to respective display dots. In the inactive term, a fixed voltage is applied to each of the display dots. The signal applied to the display dot is divided into small terms by the inactive portions, resulting in more high frequency components in a voltage signal applied to the display dot. As a result, the frequency components of a driving signal applied to the display dot are averaged. Further, a complete orthogonal function having 2.sup.r base function series is used, and a desired display data is completely reproduced on the display apparatus by an arithmetic process assuming auxiliary data in accordance with the number of the scanning electrodes.
摘要翻译：提供了具有优异的对比度和高显示质量而没有串扰和显示不规则的显示装置的驱动装置及其驱动方法。在驱动装置中，在一个帧中具有多个周期性非活动部分的扫描信号和数据信号被施加到各个显示点。在无效项中，对每个显示点施加固定电压。施加到显示点的信号被非活动部分分成小项，导致施加到显示点的电压信号中的更高频率分量。结果，施加到显示点的驱动信号的频率分量被平均。此外，使用具有2r基本功能系列的完整正交函数，并且通过假设根据扫描电极的数量的辅助数据的算术处理在显示装置上完全再现期望的显示数据。

79. 发明申请

US20140022472A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20140022472A1
公开(公告)日：2014-01-23
申请号：US14007618
申请日：2012-03-21
申请人： Katsutoshi Kikuchi , Masayuki Ohhashi , Hajime Washio
发明人： Katsutoshi Kikuchi , Masayuki Ohhashi , Hajime Washio
IPC分类号： G02F1/1339
CPC分类号： G02F1/1339 , G02B27/2214 , G02F1/133308 , G02F2201/503 , H04N13/31
摘要： A liquid crystal display device includes a display panel, a parallax barrier, and a spacer. The display panel includes a display area in which an image is displayed and a display surrounding area located around the display area. The parallax barrier includes a separation area and a separation surrounding area located around the separation area. The image displayed on the display panel is separated by parallax in the separation area. The parallax barrier is attached to the display panel with a space between the separation surrounding area of the parallax barrier and the display surrounding area of the display panel. The spacer is arranged in the space. The spacer is configured to define a distance between the display surrounding area of the display panel and the separation surrounding area of the parallax barrier.
摘要翻译：液晶显示装置包括显示面板，视差屏障和间隔物。显示面板包括其中显示图像的显示区域和位于显示区域周围的显示器周围区域。视差屏障包括分离区域和位于分离区域周围的分离周围区域。显示面板上显示的图像在分离区域中被视差分离。视差屏障以视差屏障的分离周围区域和显示面板的显示器周围区域之间的间隔附着到显示面板。间隔件布置在空间中。间隔件被配置为限定显示面板的显示器周围区域与视差屏障的分离周围区域之间的距离。

80. 发明授权

US08330093B2 Apparatus and method for preventing charge pumping in series connected diode stacks 有权
标题翻译：串联连接二极管叠层的电荷泵送装置及方法
公开(公告)号：US08330093B2
公开(公告)日：2012-12-11
申请号：US12692874
申请日：2010-01-25
申请人： Michael P. Coulson , Hajime Washio , Benjamin J. Hadwen , Sunay Shah
发明人： Michael P. Coulson , Hajime Washio , Benjamin J. Hadwen , Sunay Shah
IPC分类号： G01J1/44
CPC分类号： G01J1/44 , G01J1/32 , G01J1/4204
摘要： An ambient light sensor includes a first stack of at least two photodiodes, wherein a cathode of one of the at least two photodiodes is electrically connected to an anode of another of the at least two photodiodes. The ALS further includes a bias source for providing a bias voltage to the first stack, and at least one switch electrically connected to the first stack. The at least one switch is operative to periodically apply the bias voltage to and remove the bias voltage from the first diode stack.
摘要翻译：环境光传感器包括至少两个光电二极管的第一堆叠，其中所述至少两个光电二极管中的一个的阴极电连接到所述至少两个光电二极管中的另一个的阳极。 ALS还包括用于向第一堆叠提供偏置电压的偏置源和至少一个电连接到第一堆叠的开关。至少一个开关可操作以周期性地施加偏置电压并从第一二极管叠层去除偏置电压。

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