公开(公告)号：US06329980B1

公开(公告)日：2001-12-11

申请号：US09049487

申请日：1998-03-27

申请人： Hisao Uehara ,  Mitsugu Kobayashi ,  Yusuke Tsutsui

发明人： Hisao Uehara ,  Mitsugu Kobayashi ,  Yusuke Tsutsui

IPC分类号： G09G500

CPC分类号： G09G3/3611 ,  G09G3/20 ,  G09G3/3648 ,  G09G2310/0297 ,  G09G2320/0209

摘要： A signal driving circuit for an active matrix type display device having display pixels arranged in a matrix, comprises a signal waveform correcting circuit receiving an input pixel signal for generating a corrected output pixel signal to the display device, said signal waveform correcting circuit including a delay circuit for generating a delay signal, a difference calculating circuit for calculating a difference signal between the input pixel signal and the delay signal, and a correction circuit for generating the corrected output pixel signal based upon the difference signal and the input pixel signal, wherein a portion of the waveform amplitude of the corrected output pixel signal is formed by adjusting a corresponding portion of the waveform amplitude of the input pixel signal based upon the difference signal.

摘要翻译： 一种用于具有排列成矩阵的显示像素的有源矩阵型显示装置的信号驱动电路，包括信号波形校正电路，接收用于向显示装置产生经校正的输出像素信号的输入像素信号，所述信号波形校正电路包括延迟 用于产生延迟信号的电路，用于计算输入像素信号和延迟信号之间的差分信号的差分计算电路，以及用于基于差分信号和输入像素信号产生校正的输出像素信号的校正电路，其中a 校正输出像素信号的波形幅度的一部分是通过基于差分信号调整输入像素信号的波形幅度的相应部分来形成的。

公开(公告)号：US6034750A

公开(公告)日：2000-03-07

申请号：US246488

申请日：1999-02-09

申请人： Yasuki Rai ,  Hisao Uehara ,  Yasushi Marushita ,  Makoto Shimizu

发明人： Yasuki Rai ,  Hisao Uehara ,  Yasushi Marushita ,  Makoto Shimizu

IPC分类号： G02B6/00 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1333

CPC分类号： G02B6/003 ,  G02F1/133615 ,  G02B6/005 ,  G02F2001/133616 ,  G02F2001/133618 ,  G02F2001/133626

摘要： A liquid crystal display (LCD) includes liquid crystal display panel located within a housing. A backlight source is detachably connected to the housing for providing light to the display panel. When the backlight source is removed from the housing, outside light, such as ambient light, provides light to the display panel. The LCD includes a light collecting lens which transmits light to the display panel and which is either covered by the backlight source or exposed to an external light source when the backlight source is detached from the housing. When the backlight source is detached, the LCD has a small size and light weight, making it convenient for carrying and using outdoors. The LCD also consumes less power when the backlight source is detached.

摘要翻译： 液晶显示器（LCD）包括位于壳体内的液晶显示面板。 背光源可拆卸地连接到壳体以向显示面板提供光。 当背光源从外壳中取出时，诸如环境光的外界光向显示面板提供光。 LCD包括：聚光透镜，其在将背光源从壳体拆下时将光透射到显示面板并且被背光源覆盖或暴露于外部光源。 当背光源分离时，LCD具有体积小，重量轻，便于携带和使用户外。 当背光源分离时，LCD也消耗较少的功率。

公开(公告)号：US5596349A

公开(公告)日：1997-01-21

申请号：US128476

申请日：1993-09-28

申请人： Mitsugu Kobayashi ,  Makoto Fujioka ,  Atsuyoshi Tanioka ,  Kazuhiko Moriwaki ,  Makoto Shimizu ,  Hisao Uehara

发明人： Mitsugu Kobayashi ,  Makoto Fujioka ,  Atsuyoshi Tanioka ,  Kazuhiko Moriwaki ,  Makoto Shimizu ,  Hisao Uehara

IPC分类号： G09G3/20 ,  G09G3/36 ,  G09G5/10

CPC分类号： G09G3/2062 ,  G09G3/2059 ,  G09G3/3611 ,  G09G3/2018

摘要： An image information processor for a liquid crystal display by a digital driver is intended to provide image display near to a source image by making continuous-tone image display by pseudo representations. The image information processor generates L-bit image display data based on P-bit source image data, L being less than P. Added to source image data of a picture element of the Nth frame (where N is a natural number of 2 or greater) is error data corresponding to the picture element of the (N-1)th frame at the same position as the picture element of the Nth frame. The high-order L bits of the P-bit data resulting from the addition are used as image display data of the picture element of the Nth frame and at least one bit of the remaining low-order bit data is held as error data of the picture element of the Nth frame. Thus, error data of a picture element of one frame is added to the same picture element of the next frame, thereby lessening the brightness difference between both the picture elements and smoothing a time change in brightness.

摘要翻译： 用于数字驱动器的液晶显示器的图像信息处理器旨在通过伪表示进行连续色调图像显示来提供靠近源图像的图像显示。 图像信息处理器基于P比特源图像数据生成L比特图像显示数据，L小于P.添加到第N帧的图像元素（其中N是2或更大的自然数）的源图像数据 ）是与第N帧的图像元素相同位置处的第（N-1）帧的像素对应的误差数据。 由相加产生的P位数据的高阶L位用作第N帧的像素的图像显示数据，剩下的低位比特数据的至少一位被保持为 第N帧的图像元素。 因此，将一帧的像素的误差数据添加到下一帧的相同像素，从而减小两个像素之间的亮度差并平滑亮度的时间变化。

公开(公告)号：US07196701B2

公开(公告)日：2007-03-27

申请号：US09823927

申请日：2001-03-29

申请人： Yusuke Tsutsui ,  Makoto Kitagawa ,  Mitsugu Kobayashi ,  Hisao Uehara

发明人： Yusuke Tsutsui ,  Makoto Kitagawa ,  Mitsugu Kobayashi ,  Hisao Uehara

IPC分类号： G09G5/00

CPC分类号： G09G3/3611 ,  G09G3/3696 ,  G09G2330/021

摘要： A power supply circuit (300) for a display device such as a liquid crystal outputs a boosted supply voltage VDD2 during normal operation, and generates a non-boosted supply voltage VDD2 having a voltage lower than that during the normal display operation by controlling the switches for switching the output within the power supply circuit (300) during a power save mode. The non-boosted supply voltage is supplied to the analog circuits of a driving circuit (100) so that the power consumption at the analog circuits is reduced. By controlling the switch for switching the output within the power supply circuit and the supply of the power supply clock, the circuit can be switched, in the power save mode, to either a mode where a lower supply voltage is generated or to a mode where the power supply is turned off.

摘要翻译： 用于诸如液晶的显示装置的电源电路（300）在正常操作期间输出升压的电源电压VDD 2，并且通过控制产生具有低于正常显示操作期间电压的非升压电源电压VDD 2 用于在节电模式期间切换电源电路（300）内的输出的开关。 非升压电源电压被提供给驱动电路（100）的模拟电路，使得模拟电路的功耗降低。 通过控制用于切换电源电路内的输出的开关和电源时钟的供给，可以在省电模式下将电路切换到产生较低电源电压的模式或者其中 电源关闭。

公开(公告)号：US07095389B2

公开(公告)日：2006-08-22

申请号：US09953236

申请日：2001-09-17

申请人： Hisao Uehara ,  Kiyoshi Yoneda ,  Yasushi Miyajima ,  Ryoichi Yokoyama

发明人： Hisao Uehara ,  Kiyoshi Yoneda ,  Yasushi Miyajima ,  Ryoichi Yokoyama

IPC分类号： G09G3/18

CPC分类号： G09G3/3648 ,  G09G2300/0842 ,  G09G2330/021

摘要： The display device of this invention, in which the retaining circuit for retaining the image signal is provided for each of the pixel elements, is capable of operating under two operation modes, a normal operation mode and a memory mode. Since the placement of the retaining circuit 110, which requires relatively large area, is confined to the area for the pixel element electrode 17 not in between the neighboring pixel element electrodes 17, the required area for one pixel element is minimized, resulting in the size reduction of the liquid crystal display device. By placing at least a portion of the retaining circuit in the area of the pixel element electrode 17 of the neighboring pixel element, the detour of the wiring can be omitted, resulting in the efficient use of the space. By this, the area required for the retaining circuit is minimized, directly resulting in the reduction of the size of the liquid crystal display device.

公开(公告)号：US6127991A

公开(公告)日：2000-10-03

申请号：US969142

申请日：1997-11-12

申请人： Hisao Uehara ,  Mitsugu Kobayashi ,  Makoto Kitagawa ,  Yusuke Tsutsui

发明人： Hisao Uehara ,  Mitsugu Kobayashi ,  Makoto Kitagawa ,  Yusuke Tsutsui

IPC分类号： G09G3/20 ,  G09G3/28

CPC分类号： G09G3/2029 ,  G09G3/2022 ,  G09G3/288 ,  G09G2320/066 ,  G09G2320/0673

摘要： There is proposed is a method of controlling a flat panel display apparatus for multi-gradation display in which a data determination portion and a subfield control portion are provided. Based on a most significant bit or an upper bit of original image data, it is determined in which one of two or more divided gradation groups the original image data is included, to select a combination of subfields in accordance with a gradation-brightness characteristic of the belonging gradation group. Using a complementary relationship with human visibility, a difference in brightness between the gradations in a low-order brightness region is reduced, and a difference in brightness between the gradations in a high-order brightness region is enlarged. Therefore, a density of brightness is uniformly recognized visually over all the brightness regions, and a good quality of display can be obtained.

摘要翻译： 提出了一种控制用于多级显示的平板显示装置的方法，其中提供了数据确定部分和子场控制部分。 基于原始图像数据的最高有效位或较高位，确定包含原始图像数据的两个或更多个分割灰度组中的哪一个，根据灰度级亮度特性来选择子场的组合 归属等级组。 使用与人类可见度的互补关系，降低了低阶亮度区域中的灰度之间的亮度差异，并且放大了高阶亮度区域中的灰度之间的亮度差。 因此，在所有的亮度区域，视觉上均匀地识别亮度的浓度，并且可以获得良好的显示质量。

公开(公告)号：US5784040A

公开(公告)日：1998-07-21

申请号：US597119

申请日：1996-02-06

申请人： Mitsugu Kobayashi ,  Makoto Fujioka ,  Atsuyoshi Tanioka ,  Kazuhiko Moriwaki ,  Makoto Shimizu ,  Hisao Uehara

发明人： Mitsugu Kobayashi ,  Makoto Fujioka ,  Atsuyoshi Tanioka ,  Kazuhiko Moriwaki ,  Makoto Shimizu ,  Hisao Uehara

IPC分类号： G09G3/20 ,  G09G3/36 ,  G09G5/10

CPC分类号： G09G3/2062 ,  G09G3/2059 ,  G09G3/3611 ,  G09G3/2018

摘要： An image information processor for a liquid crystal display by a digital driver is intended to provide image display near to a source image by making continuous-tone image display by pseudo representations. The image information processor generates L-bit image display data based on P-bit source image data, L being less than P. Added to source image data of a picture element of the Nth frame (where N is a natural number of 2 or greater) is error data corresponding to the picture element of the (N-1)th frame at the same position as the picture element of the Nth frame. The high-order L bits of the P-bit data resulting from the addition are used as image display data of the picture element of the Nth frame and at least one bit of the remaining low-order bit data is held as error data of the picture element of the Nth frame. Thus, error data of a picture element of one frame is added to the same picture element of the next frame, thereby lessening the brightness difference between both the picture elements and smoothing a time change in brightness.

摘要翻译： 用于数字驱动器的液晶显示器的图像信息处理器旨在通过伪表示进行连续色调图像显示来提供靠近源图像的图像显示。 图像信息处理器基于P比特源图像数据生成L比特图像显示数据，L小于P.添加到第N帧的图像元素（其中N是2或更大的自然数）的源图像数据 ）是与第N帧的图像元素相同位置处的第（N-1）帧的像素对应的误差数据。 由相加产生的P位数据的高阶L位用作第N帧的像素的图像显示数据，剩下的低位比特数据的至少一位被保持为 第N帧的图像元素。 因此，将一帧的像素的误差数据添加到下一帧的相同像素，从而减小两个像素之间的亮度差并平滑亮度的时间变化。

公开(公告)号：US5574477A

公开(公告)日：1996-11-12

申请号：US553828

申请日：1995-11-06

申请人： Makoto Shimizu ,  Masahiro Okuyama ,  Kazuhiko Moriwaki ,  Atsuyoshi Tanioka ,  Hisao Uehara ,  Norio Miura

发明人： Makoto Shimizu ,  Masahiro Okuyama ,  Kazuhiko Moriwaki ,  Atsuyoshi Tanioka ,  Hisao Uehara ,  Norio Miura

IPC分类号： G02F1/13 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13357 ,  G06F1/16 ,  G06F1/20 ,  G09G3/36

CPC分类号： G06F1/1601 ,  G06F1/20 ,  G06F1/203 ,  G06F2200/1612

摘要： A single liquid-crystal display can be used to be either of direct-vision or projection type, if required. Separate display devices for monitor and OHP are not required. Further, power consumption can be reduced, with the service life of the display being prolonged to improve economy.The liquid-crystal display includes a display housing which receives a liquid-crystal panel, a driver circuit unit and a cooling fan, the display housing being detachably mountable in a back light stand. When the display housing is mounted or dismounted in the back light stand, the fan and back light can automatically be turned on or off to reduce the power consumption. The liquid-crystal panel can be prevented from being degraded by cooling it by way of the fan.

摘要翻译： 如果需要，单个液晶显示器可以用于直视或投影型。 不需要用于显示器和OHP的独立显示设备。 此外，可以降低功耗，延长显示器的使用寿命以改善经济性。 液晶显示器包括接收液晶面板的显示器壳体，驱动电路单元和冷却风扇，显示壳体可拆卸地安装在后灯架中。 当显示外壳安装或拆卸在后灯架上时，风扇和背光灯可以自动打开或关闭，以降低功耗。 通过风扇进行冷却，能够防止液晶面板的劣化。

公开(公告)号：US5537233A

公开(公告)日：1996-07-16

申请号：US340234

申请日：1994-11-16

申请人： Norio Miura ,  Hisao Uehara ,  Atsuyoshi Tanioka ,  Kazuhiko Moriwaki ,  Makoto Shimizu ,  Masahiro Okuyama

发明人： Norio Miura ,  Hisao Uehara ,  Atsuyoshi Tanioka ,  Kazuhiko Moriwaki ,  Makoto Shimizu ,  Masahiro Okuyama

IPC分类号： G02F1/1347 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13357

CPC分类号： G02F1/13476 ,  G02F1/1336 ,  G02F1/133615 ,  G02F2001/133627

摘要： In a display housing, first and Second liquid-crystal panels are disposed in parallel with each other, and a fluorescent lamp is positioned beside both ends of a gap between these panels. Thus, when used for a transmission type display, e.g. an OHP, the first liquid-crystal panel for light shutter is set in a transmission condition to transmit light from a light source for the OHP or the like and to irradiate the second liquid-crystal panel for displaying an image, thereby projecting the image in a magnified size onto a screen or the like. When used for a direct-vision type display, e.g. a monitor for a personal computer or the like, the first liquid-crystal panel is set in a shading condition to effect diffuse reflection of light from the fluorescent lamp by the first liquid-crystal panel and to irradiate the second liquid-crystal panel, thereby providing a direct-vision image.

摘要翻译： 在显示器壳体中，第一和第二液晶面板彼此平行地设置，荧光灯位于这些面板之间的间隙的两端附近。 因此，当用于传输类型显示时，例如， OHP，用于光快门的第一液晶面板被设置在透射条件下以从OHP等的光源透射光并照射第二液晶面板以显示图像，从而将图像投影到 在屏幕上放大尺寸等。 当用于直视式显示时，例如， 用于个人计算机等的监视器，将第一液晶面板设置在阴影状态，以通过第一液晶面板进行来自荧光灯的光的漫反射，并且照射第二液晶面板，从而 提供直观的图像。