专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US06677925B1 Active-matrix-type liquid crystal display device, data signal line driving circuit, and liquid crystal display device driving method 有权
标题翻译：有源矩阵型液晶显示装置，数据信号线驱动电路以及液晶显示装置的驱动方法
公开(公告)号：US06677925B1
公开(公告)日：2004-01-13
申请号：US09656007
申请日：2000-09-06
申请人： Takafumi Kawaguchi , Toshihiro Yanagi
发明人： Takafumi Kawaguchi , Toshihiro Yanagi
IPC分类号： G09G336
CPC分类号： G09G3/3655
摘要： In an active-matrix LCD device, a coupling signal in accordance with a sum of outputs of data signal lines is detected by a detection-use bus line crossing each of the data signal lines. The coupling signal is superimposed via a coupling capacitor on an input signal that serves as a reference, and is inverted and amplified by a inverting-amplifying section, then it is outputted as a common electrode signal. With this, a waveform that corresponds to a sum of the outputs is coupled with the common electrode signal. As a result, the common electrode signal is caused to have an influence that corresponds to a fluctuation of a potential of the common electrode due to outputs of the data signal lines and that is reverse in phase, thereby enabling to prevent horizontal shadow due to the outputs of the data signal lines. Thus, it is possible to realize an active-matrix-type LCD device in which horizontal shadow can be prevented with low power consumption.
摘要翻译：在有源矩阵LCD装置中，通过与每条数据信号线交叉的检测用总线来检测根据数据信号线的输出之和的耦合信号。耦合信号通过耦合电容器叠加在作为参考的输入信号上，并由反相放大部分反相放大，然后作为公共电极信号输出。由此，与输出的和对应的波形与公共电极信号耦合。结果，使公共电极信号由于数据信号线的输出而相应于公共电极的电位的波动并且相位相反的影响，从而能够防止由于数据信号线的输出。因此，可以实现能够以低功耗来防止水平阴影的有源矩阵型LCD装置。

82. 发明授权

US06509895B2 Voltage generating circuit, and common electrode drive circuit, signal line drive circuit and gray-scale voltage generating circuit for display devices 失效
公开(公告)号：US06509895B2
公开(公告)日：2003-01-21
申请号：US09916343
申请日：2001-07-30
申请人： Toshihiro Yanagi , Hisao Okada , Tadatsugu Nishitani , Yuji Yamamoto , Takeshi Takarada
发明人： Toshihiro Yanagi , Hisao Okada , Tadatsugu Nishitani , Yuji Yamamoto , Takeshi Takarada
IPC分类号： G09G500
CPC分类号： H04N3/127 , G09G3/2011 , G09G3/2014 , G09G3/3614 , G09G3/3655 , G09G3/3696 , G09G2330/021
摘要： A drive circuit for a display device supplying a plurality of gray-scale voltages to the display device, based on externally supplied digital video signal data, includes: a plurality of gray-scale power supplies, a plurality of drive power supplies, a unit for forming a first part of the plurality of gray-scale voltages using the gray-scale voltage power supplies, and a unit for forming a second part of the plurality of gray-scale voltages using the drive power supplies.

83. 发明授权

US6118421A Method and circuit for driving liquid crystal panel 失效
标题翻译：液晶面板驱动方法及电路
公开(公告)号：US6118421A
公开(公告)日：2000-09-12
申请号：US721717
申请日：1996-09-27
申请人： Takafumi Kawaguchi , Toshihiro Yanagi , Makoto Takeda , Hisao Okada
发明人： Takafumi Kawaguchi , Toshihiro Yanagi , Makoto Takeda , Hisao Okada
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
CPC分类号： G09G3/2011 , G09G3/3648 , G09G3/3655 , G09G3/3696 , G09G2310/0251 , G09G2310/027 , G09G2320/0204 , G09G2320/0209 , G09G2320/0214 , G09G3/3614
摘要： A method for driving a liquid crystal panel including a plurality of pixel electrodes arranged in a matrix, a plurality of data lines respectively connected to the pixel electrodes in a plurality of columns, a plurality of gate lines respectively connected to the pixel electrodes in a plurality of rows, and a plurality of switching devices, respectively connected to the pixel electrodes, for connecting and disconnecting the corresponding pixel electrode and the corresponding data line based on a signal sent from the corresponding gate line. The method includes the step of applying a driving voltage having a waveform corresponding to image data used for display to each data line while inverting the driving voltage gate line by gate line and frame by frame, so as to maintain an average value of the driving voltage in each frame within a certain range.
摘要翻译：一种用于驱动液晶面板的方法，所述液晶面板包括以矩阵形式布置的多个像素电极，分别连接到多个像素电极的多条数据线，分别连接到多个像素电极的多条栅极线以及分别连接到像素电极的多个开关装置，用于基于从相应的栅极线发送的信号连接和断开对应的像素电极和相应的数据线。该方法包括以下步骤：将具有对应于用于显示的图像数据的波形的驱动电压施加到每个数据线，同时通过栅极线和逐帧反相驱动电压栅极线，以便保持驱动电压的平均值在每个帧内在一定范围内。

84. 发明授权

US5621426A Display apparatus and driving circuit for driving the same 失效
标题翻译：显示装置及其驱动电路
公开(公告)号：US5621426A
公开(公告)日：1997-04-15
申请号：US446064
申请日：1995-05-19
申请人： Hisao Okada , Tadatsugu Nishitani , Toshihiro Yanagi
发明人： Hisao Okada , Tadatsugu Nishitani , Toshihiro Yanagi
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
CPC分类号： G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2330/02 , G09G3/2011 , G09G3/2018
摘要： A driving circuit for driving a display apparatus, includes: a control signal generating unit for generating a plurality of control signals in accordance with digital video data; a voltage signal output unit for receiving the plurality of control signals and selectively outputting at least one of a plurality of voltage signals supplied from a voltage supply unit in response to the plurality of control signals; and a signal delay unit, when a predetermined change occurs for each of the plurality of control signals, for transmitting the predetermined change to the voltage signal output unit with a predetermined period .DELTA.t delayed.
摘要翻译：一种用于驱动显示装置的驱动电路，包括：控制信号产生单元，用于根据数字视频数据产生多个控制信号; 电压信号输出单元，用于接收多个控制信号，并且响应于多个控制信号选择性地输出从电压提供单元提供的多个电压信号中的至少一个; 以及信号延迟单元，当对于所述多个控制信号中的每个控制信号发生预定的变化时，用于以预定周期DELTA t将所述预定变化发送到所述电压信号输出单元。

85. 发明授权

US5402142A Drive circuit for display apparatus 失效
标题翻译：显示装置的驱动电路
公开(公告)号：US5402142A
公开(公告)日：1995-03-28
申请号：US934389
申请日：1992-08-21
申请人： Hisao Okada , Yuji Yamamoto , Tadatsugu Nishitani , Toshihiro Yanagi
发明人： Hisao Okada , Yuji Yamamoto , Tadatsugu Nishitani , Toshihiro Yanagi
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N3/12 , H04N5/20
CPC分类号： H04N3/127 , G09G3/3648 , G09G3/3655 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2320/0204 , G09G2320/0219 , G09G2320/0247 , G09G3/2011 , G09G3/3614
摘要： A drive circuit for a display apparatus includes an input section for receiving a digital video signal, a voltage supply section for generating a common electrode voltage and a plurality of gradation voltages, a driving section for selecting one of the plurality of gradation voltages according to the input digital video signal and applying the selected gradation voltage to one of the pixel electrodes, and for applying the common electrode voltage to the common electrode, the common electrode voltage being shifted based on a certain relationship so that a central value of the common electrode voltage is different from central values of the gradation voltages.
摘要翻译：用于显示装置的驱动电路包括用于接收数字视频信号的输入部分，用于产生公共电极电压和多个灰度电压的电压供应部分，用于根据所述多个灰度电压来选择所述多个灰度电压中的一个的驱动部分输入数字视频信号并将所选择的灰度电压施加到一个像素电极，并且将公共电极电压施加到公共电极，基于一定关系使公共电极电压偏移，使得公共电极电压的中心值不同于灰度电压的中心值。

86. 发明授权

US09437154B2 Display device, and method for driving display device 有权
标题翻译：显示装置以及驱动显示装置的方法
公开(公告)号：US09437154B2
公开(公告)日：2016-09-06
申请号：US14009962
申请日：2012-04-05
申请人： Jun Nakata , Masaki Uehata , Kohji Saitoh , Masami Ozaki , Toshihiro Yanagi
发明人： Jun Nakata , Masaki Uehata , Kohji Saitoh , Masami Ozaki , Toshihiro Yanagi
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3688 , G09G2330/02 , G09G2330/04 , G09G2330/045
摘要： Provided for each data signal line drive circuit (6a, 6b, 6c) are: a voltage generation circuit (61a, 61b, 61c) that generates a drive voltage in accordance with an external voltage; and a voltage determination circuit (63a, 63b, 63c) which determines whether or not a voltage level of at least either the external voltage or the drive voltage falls within a range of allowable voltages, in a case where the voltage level does not fall within the range of allowable voltages, operation of the voltage generation circuits (61a, 61b, 61c) being stopped.
摘要翻译：为每个数据信号线驱动电路（6a，6b，6c）提供的是：根据外部电压产生驱动电压的电压产生电路（61a，61b，61c）以及电压确定电路（63a，63b，63c），其在电压电平不在其内的情况下，判定外部电压或驱动电压的至少一方的电压电平是否落入容许电压的范围内允许电压的范围，电压产生电路（61a，61b，61c）的动作停止。

87. 发明授权

US08896590B2 Display controller, display device, and control method for controlling display system and display device 有权
标题翻译：显示控制器，显示设备和控制显示系统和显示设备的控制方法
公开(公告)号：US08896590B2
公开(公告)日：2014-11-25
申请号：US12309978
申请日：2007-06-08
申请人： Toshihiro Yanagi , Takuji Miyamoto , Atsuhito Murai
发明人： Toshihiro Yanagi , Takuji Miyamoto , Atsuhito Murai
IPC分类号： G06F3/038 , G09G3/36 , G09G5/00
CPC分类号： G09G3/3677 , G09G5/008 , G09G2310/062 , G09G2310/08 , G09G2370/08
摘要： In one embodiment of the present invention, a display controller includes a stable pixel writing period in one horizontal period in a display device, the stable pixel writing period being a period during which a voltage outputted from a gate driver is at a high level. The display controller also includes a first stable pixel writing period determination circuit which determines, by using a reference signal independent from the frame rate in the display device, the stable pixel writing period during which the voltage is at the high level. Thus, the display controller can be provided in which, regardless of whether and how the frame rate is changed, the stable pixel writing period can be of a target length.
摘要翻译：在本发明的一个实施例中，显示控制器包括在显示设备中的一个水平周期中的稳定的像素写入周期，稳定的像素写入周期是从栅极驱动器输出的电压处于高电平的期间。显示控制器还包括第一稳定像素写入周期确定电路，其通过使用独立于显示装置中的帧速率的参考信号来确定电压处于高电平的稳定像素写入周期。因此，可以提供显示控制器，其中，无论帧速率是否改变和如何改变，稳定的像素写入周期可以是目标长度。

88. 发明申请

US20140225881A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20140225881A1
公开(公告)日：2014-08-14
申请号：US14237970
申请日：2012-08-07
申请人： Kohzoh Takahashi , Kohji Saitoh , Akizumi Fujioka , Jun Nakata , Toshihiro Yanagi
发明人： Kohzoh Takahashi , Kohji Saitoh , Akizumi Fujioka , Jun Nakata , Toshihiro Yanagi
IPC分类号： G09G3/36
CPC分类号： G09G3/3614 , G09G2320/0209 , G09G2330/021 , G09G2340/0435
摘要： A display device (1) includes (i) refresh rate changing means (15) for changing a refresh rate of a display panel (2) and (ii) a polarity reversal controlling section (20) for changing, in accordance with a change in the refresh rate, at least one of a temporal cycle and a spatial cycle of a polarity reversal of a source signal.
摘要翻译：显示装置（1）包括：（i）用于改变显示面板（2）的刷新率的刷新率改变装置（15）和（ii）极性反转控制部分（20），用于根据刷新率，源信号的极性反转的时间周期和空间周期中的至少一个。

89. 发明申请

US20140055697A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20140055697A1
公开(公告)日：2014-02-27
申请号：US14113403
申请日：2012-04-23
申请人： Kohji Saitoh , Masaki Uehata , Masami Ozaki , Toshihiro Yanagi
发明人： Kohji Saitoh , Masaki Uehata , Masami Ozaki , Toshihiro Yanagi
IPC分类号： G02F1/133
CPC分类号： G02F1/13306 , G09G3/3614 , G09G3/3688 , G09G3/3696 , G09G2310/0291
摘要： A source AMP output circuit (10) is provided with a switching circuit (17) for carrying out the following operation. That is, in a case where a polarity is reversed, the switching circuit (17) disconnects a data signal line (S(M)) from output terminals of a positive amplifier circuit (15) and a negative polarity amplifier circuit (16) each included in the source AMP output circuit (10), and then connects the data signal line S(M) to a power supply which is in a power supply voltage range (Vdd1 to Vdd3) of the positive polarity amplifier circuit (15) or to a power supply which is in a power supply voltage range (Vdd2 to Vdd4) of the negative polarity amplifier circuit (16).
摘要翻译：源AMP输出电路（10）设置有用于执行以下操作的开关电路（17）。也就是说，在极性反转的情况下，开关电路（17）从正放大电路（15）和负极放大电路（16）的输出端分别断开数据信号线（S（M））包括在源极AMP输出电路（10）中，然后将数据信号线S（M）连接到正极性放大器电路（15）的电源电压范围（Vdd1至Vdd3）中的电源或连接到处于负极性放大电路（16）的电源电压范围（Vdd2〜Vdd4）的电源。

90. 发明申请

US20140043377A1 BACKLIGHT UNIT AND DISPLAY DEVICE 审中-公开
标题翻译：背光单元和显示设备
公开(公告)号：US20140043377A1
公开(公告)日：2014-02-13
申请号：US14112327
申请日：2012-04-16
申请人： Shigenori Tanaka , Ryoh Araki , Yoshinobu Hirayama , Toshihiro Yanagi
发明人： Shigenori Tanaka , Ryoh Araki , Yoshinobu Hirayama , Toshihiro Yanagi
IPC分类号： F21V8/00 , G09G5/10
CPC分类号： G02B6/0091 , G02B6/0036 , G02B6/0053 , G02B6/0061 , G02B6/0076 , G02F1/133615 , G09G5/10
摘要： A backlight unit (20) includes: light sources (4A, 4B); light guide members (2A, 2B), the light source (4A) being provided to a side surface of the light guide member (2A), the light source (4B) being provided to a side surface of the light guide member (2B), the light sources (4A, 4B) being provided across the light guide members (2A, 2b) in plane view; and an optical path changing member (1) for changing an optical path of light passing through the optical path changing member, the optical path changing member (1) having a light incidence surface (SUF1) for receiving light emitted directly from the light guide member (2A or 2B), and a light exit surface (SUF2) for emitting, directly to a display panel outside of the backlight unit (20), the light thus received via the light incidence surface (SUF1). This configuration makes it possible to large-size a backlight unit without the fear of display quality deterioration, and makes it possible for such a backlight unit to emit light with luminance directivity in different directions.
摘要翻译：背光单元（20）包括：光源（4A，4B）; 导光构件（2A，2B），光源（4A）设置在导光构件（2A）的侧面，光源（4B）设置在导光构件（2B）的侧面，，所述光源（4A，4B）在平面图中横跨所述导光部件（2A，2b）设置; 以及用于改变通过光路改变构件的光的光路的光路改变构件（1），具有用于接收从导光构件直接发射的光的光入射表面（SUF1）的光路改变构件（1）（2A或2B），以及用于经由光入射表面（SUF1）直接发射到背光单元（20）外部的显示面板的光出射表面（SUF2）。该配置使得可以大幅度地降低背光单元，而不用担心显示质量恶化，并且使得这种背光单元能够以不同方向的亮度指向性发光。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式