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    Method and apparatus for driving a liquid crystal display panel
    1.
    发明授权
    Method and apparatus for driving a liquid crystal display panel 失效
    用于驱动液晶显示面板的方法和装置

    公开(公告)号：US5307084A

    公开(公告)日：1994-04-26

    申请号：US863379

    申请日：1992-04-03

    申请人： Hisashi Yamaguchi ,  Yoshiya Kaneko ,  Munehiro Haraguchi ,  Hiroshi Murakami ,  Takayuki Hoshiya ,  Tetsuya Kobayashi ,  Kazuhiro Takahara

    发明人： Hisashi Yamaguchi ,  Yoshiya Kaneko ,  Munehiro Haraguchi ,  Hiroshi Murakami ,  Takayuki Hoshiya ,  Tetsuya Kobayashi ,  Kazuhiro Takahara

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3696 ,  G09G3/3622 ,  G09G2320/0209

    摘要： In a driver circuit of direct drive matrix type LCD panel, a quantity of ON-STATE cells (or OFF-STATE cells) displayed on the just previous scan electrode is counted and a quantity of ON-STATE cells (or OFF-STATE cells) to be displayed on a present scan electrode is also counted. A compensation voltage is generated according to a predetermined relation based on a difference of the two above-counted quantities, and is superposed onto drive voltages of unselected scan electrodes or of each of data electrodes, in a polarity that an undesirable spike voltage induced on unselected cell voltage is cancelled, in synchronization with selection of the present scan electrode. The compensation voltage may be generated according to a digital difference of the two quantities or to a change in an analog voltage representing the counted quantity. The above-described relation of the compensation voltage versus the counted quantity difference may be proportional or may be given with a predetermined specific relation to meet the panel characteristics. The compensation voltage may be a flat voltage during the period for selecting the single scan electrode or may be of a spike waveform. Amplitude of this spike is determined by the above-described predetermined relation. An irregular panel brightness caused from spike voltages induced from data electrode voltage application is cancelled.

    摘要翻译： 在直接驱动矩阵型LCD面板的驱动电路中，对刚刚扫描电极上显示的一定数量的ON状态单元（或OFF状态单元）进行计数，并将ON状态单元（或OFF-STATE单元） 也显示在当前扫描电极上。 基于两个上述计数量的差异，根据预定关系产生补偿电压，并以非选择的扫描电极或每个数据电极的驱动电压叠加在非选择的不期望的尖峰电压的极性 与当前扫描电极的选择同步地消除电池电压。 补偿电压可以根据两个数量的数字差或与表示计数量的模拟电压的变化产生。 补偿电压与计数量差的上述关系可以是成比例的或者可以以预定的特定关系给出以满足面板特性。 在用于选择单个扫描电极的周期期间，补偿电压可以是平坦的电压，或者可以是尖峰波形。 该尖峰的幅度由上述预定关系决定。 由数据电极电压施加引起的尖峰电压导致的不规则面板亮度被取消。

    Method for driving a matrix type display
    4.
    发明授权
    Method for driving a matrix type display 失效
    驱动矩阵型显示器的方法

    公开(公告)号：US4636789A

    公开(公告)日：1987-01-13

    申请号：US533986

    申请日：1983-09-20

    申请人： Hisashi Yamaguchi ,  Kazuhiro Takahara ,  Hiroyuki Gondoh ,  Toyoshi Kawada ,  Shizuo Andoh

    发明人： Hisashi Yamaguchi ,  Kazuhiro Takahara ,  Hiroyuki Gondoh ,  Toyoshi Kawada ,  Shizuo Andoh

    IPC分类号： G09G3/30

    CPC分类号： G09G3/30 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0223

    摘要： In driving a thin film EL display panel providing the matrix arrangement of translucent data electrodes and metal scanning electrodes, the data pulse is supplied to the selected translucent data electrodes in such a relation that it rises in advance of the scanning pulse to be supplied to the opposing metal scanning electrodes. Thereby, fluctuation of brightness due to the influence of electrode resistance of the translucent data electrodes can be eliminated, and a uniform and distinct display can be attained.

    摘要翻译： 在驱动提供半透明数据电极和金属扫描电极的矩阵排列的薄膜EL显示面板时，将数据脉冲以提供给扫描脉冲之前上升的关系提供给所选择的半透明数据电极， 相对的金属扫描电极。 由此，可以消除由于透光性数据电极的电极电阻的影响引起的亮度的波动，能够得到均匀且显着的显示。

    Method and circuit for selectively driving capacitive display cells in a matrix type display
    5.
    发明授权
    Method and circuit for selectively driving capacitive display cells in a matrix type display 失效
    用于选择性地驱动矩阵型显示器中的电容式显示单元的方法和电路

    公开(公告)号：US4456909A

    公开(公告)日：1984-06-26

    申请号：US278715

    申请日：1981-06-29

    申请人： Kazuhiro Takahara ,  Keizo Kurahashi ,  Hisashi Yamaguchi

    发明人： Kazuhiro Takahara ,  Keizo Kurahashi ,  Hisashi Yamaguchi

    IPC分类号： G09G3/28 ,  G09G3/30 ,  G09G3/04

    CPC分类号： G09G3/30 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2330/021 ,  G09G3/28

    摘要： A method for driving a thin film EL display device comprising the steps of clamping the Y side scanning electrodes selectively and sequentially to a reference voltage and applying the display voltage selectively from the X side data electrodes. In addition, the non-display voltage which is lower than the display threshold voltage, is applied to the non-selected data electrodes and the non-selected scanning electrodes are floated. This new driving method reduces drive power and widens the device operating voltage range.

    摘要翻译： 一种用于驱动薄膜EL显示装置的方法，包括以下步骤：选择性地和顺序地将Y侧扫描电极夹持到参考电压，并从X侧数据电极选择性地施加显示电压。 此外，低于显示阈值电压的非显示电压被施加到未选择的数据电极，并且未选择的扫描电极浮动。 这种新的驱动方法可以降低驱动功率并扩大器件的工作电压范围。

    Apparatus for controlling data voltage of liquid crystal display unit to achieve multiple gray-scale
    6.
    发明授权
    Apparatus for controlling data voltage of liquid crystal display unit to achieve multiple gray-scale 失效
    用于控制液晶显示单元数据电压达到多灰度的装置

    公开(公告)号：US06222515B1

    公开(公告)日：2001-04-24

    申请号：US07786251

    申请日：1991-10-31

    申请人： Tadahisa Yamaguchi ,  Kazuhiro Takahara ,  Masami Oda ,  Hisashi Yamaguchi

    发明人： Tadahisa Yamaguchi ,  Kazuhiro Takahara ,  Masami Oda ,  Hisashi Yamaguchi

    IPC分类号： G09G336

    CPC分类号： G09G3/2011 ,  G09G3/2018 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2320/0247

    摘要： In a driving device of an active matrix type liquid crystal display unit including a liquid crystal display panel, a scan driver, and a data driver, a data voltage controlling apparatus is provided to achieve digital multiple gray-scale levels with little flickering. The data voltage controlling apparatus supplies the data driver with a combination of two different data voltages picked up from a plurality of digital data voltages previously set. The combination of two different data voltages are, for example, a combination of different waveforms, a combination of negative level and positive level, and a combination of two different voltages having at least a voltage difference. Further, a division of T-V characteristics and an exchange of data voltages are carried out to reduce the flickering.

    摘要翻译： 在包括液晶显示面板，扫描驱动器和数据驱动器的有源矩阵型液晶显示单元的驱动装置中，提供数据电压控制装置，以实现少量闪烁的数字多灰度级。 数据电压控制装置向数据驱动器提供从预先设定的多个数字数据电压中拾取的两个不同数据电压的组合。 两个不同数据电压的组合例如是不同波形的组合，负电平和正电平的组合以及具有至少一个电压差的两个不同电压的组合。 此外，执行T-V特性的划分和数据电压的交换以减少闪烁。

    Touch sensing device
    8.
    发明授权
    Touch sensing device 失效
    触摸感应装置

    公开(公告)号：US4550310A

    公开(公告)日：1985-10-29

    申请号：US437220

    申请日：1982-10-28

    申请人： Hisashi Yamaguchi ,  Toru Asano ,  Kazuhiro Takahara ,  Keizo Kurahashi ,  Shizuo Andoh

    发明人： Hisashi Yamaguchi ,  Toru Asano ,  Kazuhiro Takahara ,  Keizo Kurahashi ,  Shizuo Andoh

    IPC分类号： H03K17/96 ,  G06F3/02 ,  H01H35/00

    CPC分类号： H03K17/9622 ,  H03K17/962 ,  H03K2017/9606 ,  H03K2017/9613 ,  Y10T307/766

    摘要： A new type touch sensing device comprises a touch panel with a plurality of transparent touch electrodes, a LC parallel resonant circuit connected to the touch electrode and an oscillation circuit. The LC resonant circuit has a resonant point on a same frequency with the oscillation frequency of the oscillation circuit. The touch/non-touch condition to the touch electrode is detected as a change of voltage value at the connecting point of the LC resonant circuit and touch electrode with an increased ON-OFF ratio.

    摘要翻译： 一种新型的触摸感测装置包括具有多个透明触摸电极的触摸面板，连接到触摸电极的LC并联谐振电路和振荡电路。 LC谐振电路在与振荡电路的振荡频率相同的频率上具有谐振点。 检测到触摸电极的触摸/非触摸状态是在LC谐振电路和触摸电极的连接点处的电压值随着ON-OFF比的增加而变化。

    Lighting unit
    9.
    发明申请
    Lighting unit 有权
    照明单元

    公开(公告)号：US20050276072A1

    公开(公告)日：2005-12-15

    申请号：US10676315

    申请日：2003-10-01

    申请人： Keiji Hayashi ,  Takeshi Gotoh ,  Toshihiro Suzuki ,  Hisashi Yamaguchi ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Mari Sugawara

    发明人： Keiji Hayashi ,  Takeshi Gotoh ,  Toshihiro Suzuki ,  Hisashi Yamaguchi ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Mari Sugawara

    IPC分类号： F21V8/00 ,  G01D11/28 ,  G02F1/13357 ,  F21V7/04 ,  F21V29/00

    CPC分类号： G02B6/0031 ,  G01D11/28 ,  G02B6/0036 ,  G02B6/0061 ,  G02B6/0071 ,  G02F1/133604 ,  G02F1/133606 ,  G02F2202/28

    摘要： The invention relates to a backlight unit for liquid crystal displays, etc.; and its object is to provide a backlight unit not involving the problem that the emitted light leaks out of the optical waveguide, even when the space around the cold-cathode tubes in the light source unit for it is filled with a liquid of which the refractive index is nearly the same as that of the glass material that forms the outer wall of the cold-cathode tubes. The backlight unit comprises a housing 6 which houses cold-cathode tubes 2, 4 therein and of which the inner surface is coated with a light reflector 10; a transparent liquid filled in the housing 6; and an optical waveguide 1 made of a transparent substance and having a light-emitting surface S. The reflective surface of the light reflector 10 has a cross-section profile of X-T-U-V-W-Y, on which the light emitted by the cold-cathode tubes 2,4 is reflected, and the thus-reflected light is led to the light-emitting surface S of the optical waveguide 1 at an incident angle not smaller than the critical angle to the surface S.

    摘要翻译： 本发明涉及液晶显示器等的背光单元。 其目的是提供一种背光单元，其不涉及发射的光从光波导中泄漏的问题，即使在其光源单元中的冷阴极管周围的空间填充有折射的液体 指数与形成冷阴极管的外壁的玻璃材料的指数几乎相同。 背光单元包括壳体6，壳体6中容纳冷阴极管2,4，其内表面涂覆有光反射体10; 填充在壳体6中的透明液体; 以及由透明物质制成并具有发光表面S的光波导1.光反射器10的反射表面具有XTUVWY的横截面轮廓，其上由冷阴极管2,4发射的光 被反射，并且将如此反射的光以不小于与表面S的临界角的入射角度导向光波导1的发光表面S.

    Screen and production display apparatus using the same
    10.
    发明授权
    Screen and production display apparatus using the same 失效
    使用其的屏幕投影显示装置

    公开(公告)号：US06392726B2

    公开(公告)日：2002-05-21

    申请号：US08942567

    申请日：1997-10-01

    申请人： Takeshi Goto ,  Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Hisashi Yamaguchi

    发明人： Takeshi Goto ,  Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Hisashi Yamaguchi

    IPC分类号： G02F11333

    CPC分类号： G02F1/133371 ,  G02F1/13318 ,  G02F1/1334 ,  G02F1/133526 ,  G03B21/62

    摘要： A screen has a screen main body, a power supply and a voltage regulator. The screen main body has a Fresnel lens, a polymer dispersed liquid crystal unit and a lenticular lens. The liquid crystal unit includes a polymer dispersed liquid crystal and a pair of transparent electrodes which sandwich the polymer dispersed liquid crystal. By operating the voltage regulator, a voltage applied to the electrodes is adjusted so that a gain of the liquid crystal is controlled.

    摘要翻译： 屏幕具有屏幕主体，电源和电压调节器。 屏幕主体具有菲涅尔透镜，聚合物分散液晶单元和双凸透镜。 液晶单元包括聚合物分散液晶和夹着聚合物分散液晶的一对透明电极。 通过操作电压调节器，调节施加到电极的电压，从而控制液晶的增益。