公开(公告)号：US08633951B2

公开(公告)日：2014-01-21

申请号：US13684676

申请日：2012-11-26

申请人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

发明人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

IPC分类号： G09G5/00 ,  G09G5/02 ,  G06T1/00 ,  G06K9/00 ,  G06K9/40 ,  H04N1/40 ,  H04N1/46 ,  H04N5/46 ,  H04N9/30 ,  H04N9/28

CPC分类号： G09G1/002 ,  G09G3/3655 ,  G09G5/04 ,  G09G5/06 ,  G09G2320/0242 ,  G09G2340/145

摘要： A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.

摘要翻译： 本发明的显示驱动电路具有：能够存储初始色域顶点坐标的初始色域 - 顶点坐标存储单元; 能够存储用户目标色域顶点坐标的用户对象色彩 - 顶点坐标存储单元; 饱和扩张系数决定单元，用于基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数; 以及用于基于饱和度膨胀系数扩大显示数据的饱和度的扩展单元。 基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数，根据扩展系数扩展显示数据的饱和度。 因此，可以对于每个色域或LC显示面板的R，G和B颜色属性中的每一个来控制饱和度的扩大程度。

公开(公告)号：US08345072B2

公开(公告)日：2013-01-01

申请号：US13423315

申请日：2012-03-19

申请人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

发明人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

IPC分类号： G09G5/00 ,  G09G5/02 ,  G06T1/00 ,  G06K9/00 ,  G06K9/40 ,  H04N1/60 ,  H04N1/46

CPC分类号： G09G1/002 ,  G09G3/3655 ,  G09G5/04 ,  G09G5/06 ,  G09G2320/0242 ,  G09G2340/145

摘要： A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.

摘要翻译： 本发明的显示驱动电路具有：能够存储初始色域顶点坐标的初始色域 - 顶点坐标存储单元; 能够存储用户目标色域顶点坐标的用户对象色彩 - 顶点坐标存储单元; 饱和扩张系数决定单元，用于基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数; 以及用于基于饱和度膨胀系数扩大显示数据的饱和度的扩展单元。 基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数，根据扩展系数扩展显示数据的饱和度。 因此，可以对于每个色域或LC显示面板的R，G和B颜色属性中的每一个来控制饱和度的扩大程度。

公开(公告)号：US20130076806A1

公开(公告)日：2013-03-28

申请号：US13684676

申请日：2012-11-26

申请人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

发明人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

IPC分类号： G09G1/00

CPC分类号： G09G1/002 ,  G09G3/3655 ,  G09G5/04 ,  G09G5/06 ,  G09G2320/0242 ,  G09G2340/145

摘要： A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.

摘要翻译： 本发明的显示驱动电路具有：能够存储初始色域顶点坐标的初始色域 - 顶点坐标存储单元; 能够存储用户目标色域顶点坐标的用户对象色彩 - 顶点坐标存储单元; 饱和扩张系数决定单元，用于基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数; 以及用于基于饱和度膨胀系数扩大显示数据的饱和度的扩展单元。 基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数，根据扩展系数扩展显示数据的饱和度。 因此，可以对于每个色域或LC显示面板的R，G和B颜色属性中的每一个来控制饱和度的扩大程度。

公开(公告)号：US20120176400A1

公开(公告)日：2012-07-12

申请号：US13423315

申请日：2012-03-19

申请人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

发明人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

IPC分类号： G09G3/36 ,  G09G5/10 ,  G09G5/02

CPC分类号： G09G1/002 ,  G09G3/3655 ,  G09G5/04 ,  G09G5/06 ,  G09G2320/0242 ,  G09G2340/145

摘要： A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.

摘要翻译： 本发明的显示驱动电路具有：能够存储初始色域顶点坐标的初始色域 - 顶点坐标存储单元; 能够存储用户目标色域顶点坐标的用户对象色彩 - 顶点坐标存储单元; 饱和扩张系数决定单元，用于基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数; 以及用于基于饱和度膨胀系数扩大显示数据的饱和度的扩展单元。 基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数，根据扩展系数扩展显示数据的饱和度。 因此，可以对于每个色域或LC显示面板的R，G和B颜色属性中的每一个来控制饱和度的扩大程度。

公开(公告)号：US20110242139A1

公开(公告)日：2011-10-06

申请号：US12750781

申请日：2010-03-31

申请人： Goki Toshima ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Akihito Akai

发明人： Goki Toshima ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Akihito Akai

IPC分类号： G09G5/10

CPC分类号： G09G3/3406 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2340/02

摘要： The display driver achieves the balance between the image quality and power-cutting ratio by controlling the backlight dimming ratio to keep the image quality after backlight dimming constant. The display driver uses e.g. MSE (Mean Square Error) as an index of image quality. The reference gradation control unit controls the data decompression and backlight dimming ratios, thereby to keep the image quality after backlight dimming constant. Assuming display data decompression, and backlight dimming, the error calculating unit calculates a decrease of luminance for an input displayed image as MSE based on the decompression and dimming ratios of a preceding frame, in advance. In the case of MSE over a predetermined value, the decompression unit and light-adjustment control unit decrease the decompression and dimming ratios to below those of the preceding frame, respectively. In the case of MSE below the value, the ratios are lowered to below those of the preceding frame.

摘要翻译： 显示驱动器通过控制背光调光比来实现图像质量和功率切换比之间的平衡，以在背光调光之后保持图像质量恒定。 显示驱动器使用例如 MSE（均方误差）作为图像质量的指标。 参考灰度控制单元控制数据解压缩和背光调光比，从而在背光调光恒定后保持图像质量。 假设显示数据解压缩和背光调光，误差计算单元预先基于前一帧的解压缩和调光比来计算输入显示图像的亮度的降低为MSE。 在MSE超过预定值的情况下，解压缩单元和调光控制单元分别将解压缩和调光比降低到前一帧以下。 在MSE低于该值的情况下，比率降低到低于前一帧的比率。

公开(公告)号：US20080129763A1

公开(公告)日：2008-06-05

申请号：US11923970

申请日：2007-10-25

申请人： Hiroki AWAKURA ,  Akihito Akai ,  Yoshiki Kurokawa ,  Naoki Takada ,  Goro Sakamaki

发明人： Hiroki AWAKURA ,  Akihito Akai ,  Yoshiki Kurokawa ,  Naoki Takada ,  Goro Sakamaki

IPC分类号： G09G5/10

CPC分类号： G09G3/3406 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/064 ,  G09G2360/144

摘要： A display brightness control circuit of a liquid crystal display device includes a logarithmic-linear converting circuit for converting an illuminance signal having a logarithmic relationship with incident light into a linear signal. When an output of an external light sensor is a logarithmic signal, the logarithmic signal is converted into a linear signal through the logarithmic-linear converting circuit, and when an output of the external light sensor is a linear signal, the logarithmic-linear converting circuit is not involved. The logarithmic-linear converting circuit corresponds to an exponential circuit which is an inverse function of a logarithm log. Further, when even the same logarithmic output illuminance sensor is different in input-output characteristics, setting of the abovementioned exponential circuit can be changed.

摘要翻译： 液晶显示装置的显示亮度控制电路包括对数线性转换电路，用于将具有入射光的对数关系的照度信号转换为线性信号。 当外部光传感器的输出是对数信号时，通过对数线性转换电路将对数信号转换成线性信号，并且当外部光传感器的输出是线性信号时，对数线性转换电路 不参与 对数线性转换电路对应于作为对数日志的反函数的指数电路。 此外，即使相同的对数输出照度传感器在输入输出特性上不同，也可以改变上述指数电路的设定。

公开(公告)号：US08059141B2

公开(公告)日：2011-11-15

申请号：US11923970

申请日：2007-10-25

申请人： Hiroki Awakura ,  Akihito Akai ,  Yoshiki Kurokawa ,  Naoki Takada ,  Goro Sakamaki

发明人： Hiroki Awakura ,  Akihito Akai ,  Yoshiki Kurokawa ,  Naoki Takada ,  Goro Sakamaki

IPC分类号： G09G5/10

CPC分类号： G09G3/3406 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/064 ,  G09G2360/144

摘要： A display brightness control circuit of a liquid crystal display device includes a logarithmic-linear converting circuit for converting an illuminance signal having a logarithmic relationship with incident light into a linear signal. When an output of an external light sensor is a logarithmic signal, the logarithmic signal is converted into a linear signal through the logarithmic-linear converting circuit, and when an output of the external light sensor is a linear signal, the logarithmic-linear converting circuit is not involved. The logarithmic-linear converting circuit corresponds to an exponential circuit which is an inverse function of a logarithm log. Further, when even the same logarithmic output illuminance sensor is different in input-output characteristics, setting of the abovementioned exponential circuit can be changed.

摘要翻译： 液晶显示装置的显示亮度控制电路包括对数线性转换电路，用于将具有入射光的对数关系的照度信号转换为线性信号。 当外部光传感器的输出是对数信号时，通过对数线性转换电路将对数信号转换成线性信号，并且当外部光传感器的输出是线性信号时，对数线性转换电路 不参与 对数线性转换电路对应于作为对数日志的反函数的指数电路。 此外，即使相同的对数输出照度传感器在输入输出特性上不同，也可以改变上述指数电路的设定。

公开(公告)号：US20110242120A1

公开(公告)日：2011-10-06

申请号：US12750773

申请日：2010-03-31

申请人： Akihito AKAI ,  Yoshiki Kurokawa ,  Goki Toshima

发明人： Akihito AKAI ,  Yoshiki Kurokawa ,  Goki Toshima

IPC分类号： G06F13/00

CPC分类号： G09G3/3406 ,  G09G2320/0646 ,  G09G2360/16

摘要： The display unit can reduce the electric power consumed by the process of calculating an adjustment coefficient for display data, as typified by gradient control, and it can be readily adapted even to a display panel with a higher resolution. The display unit includes: a plurality of driving units arrayed in parallel and each operable to output a drive signal to a display panel; a plurality of first calculation units, and a plurality of display RAMs, each paired with one first calculation unit, the pairs of the first calculation units and display RAMs laid out along a direction of the parallel array of the driving units; and a second calculation unit which distributes display data supplied from outside to the display RAMs, receives display data from the display RAMs in parallel to analyze a histogram of tone distribution of pixel data corresponding to one screen, and calculates the adjustment coefficient based on a result of the analysis. In the display unit, the adjustment coefficient thus calculated is sent back to the first calculation units. The first calculation unit performs a calculation using display data read from the corresponding display RAM and the adjustment coefficient thereby to create drive data for the display panel.

摘要翻译： 显示单元可以通过梯度控制代表的计算显示数据的调整系数的处理来减少消耗的电力，并且可以容易地适应于具有更高分辨率的显示面板。 显示单元包括：并行排列的多个驱动单元，每个驱动单元可操作以将驱动信号输出到显示面板; 多个第一计算单元和多个显示RAM，每个显示RAM与一个第一计算单元配对，沿着驱动单元的并行阵列的方向布置的第一计算单元和显示RAM对; 以及第二计算单元，其将从外部提供的显示数据分配到显示RAM，并行地从显示RAM接收显示数据，以分析与一个屏幕相对应的像素数据的色调分布的直方图，并且基于结果计算调整系数 的分析。 在显示单元中，将如此计算的调整系数发送回第一计算单元。 第一计算单元使用从对应的显示RAM读取的显示数据和调整系数进行计算，从而创建显示面板的驱动数据。

公开(公告)号：US20110206290A1

公开(公告)日：2011-08-25

申请号：US13033659

申请日：2011-02-24

申请人： Yukari Katayama ,  Akihito Akai ,  Yoshiki Kurokawa ,  Yusuke Uchida

发明人： Yukari Katayama ,  Akihito Akai ,  Yoshiki Kurokawa ,  Yusuke Uchida

IPC分类号： G06K9/36

CPC分类号： G09G3/3648 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/0686 ,  G09G2320/103 ,  G09G2340/02 ,  G09G2340/16 ,  H04N19/124 ,  H04N19/146 ,  H04N19/172 ,  H04N19/42 ,  H04N19/60

摘要： The display driving circuit includes: an OD (OverDrive) calculation circuit operable to generate an OD driving signal for improving the response characteristic of a display device according to display image data; a drive-output circuit operable to supply an OD driving signal to the display device; and a compression circuit operable to store compressed display data in a memory. The compression circuit includes a DCT calculation module operable to execute DCT (Discrete Cosine Transform) of display image data, and an entropy coding module operable to execute variable length entropy coding of DCT conversion display data. Preferably, the display driving circuit further includes a decompression circuit operable to supply an OD calculation circuit with display data resulting from decompression of compressed display data read out the memory.

摘要翻译： 显示驱动电路包括：OD（OverDrive）计算电路，用于根据显示图像数据产生用于改善显示装置的响应特性的OD驱动信号; 驱动输出电路，其可操作以向所述显示装置提供OD驱动信号; 以及可操作以将压缩显示数据存储在存储器中的压缩电路。 压缩电路包括可以执行显示图像数据的DCT（离散余弦变换）的DCT计算模块和可操作以执行DCT变换显示数据的可变长度熵编码的熵编码模块。 优选地，显示驱动电路还包括解压缩电路，其可操作以向OD计算电路提供由对存储器读出的压缩显示数据的解压缩而得到的显示数据。

公开(公告)号：US4963074A

公开(公告)日：1990-10-16

申请号：US293434

申请日：1990-01-04

申请人： Masami Sanuki ,  Fumihiro Itoigawa ,  Akikazu Kojima ,  Mitsuo Inagaki ,  Masanori Yasuda ,  Yoshiki Kurokawa ,  Kazuhito Miyagawa ,  Seiichiro Suzuki ,  Shigeki Iwanami ,  Shiro Kawasaki ,  Nobuhiro Miura

发明人： Masami Sanuki ,  Fumihiro Itoigawa ,  Akikazu Kojima ,  Mitsuo Inagaki ,  Masanori Yasuda ,  Yoshiki Kurokawa ,  Kazuhito Miyagawa ,  Seiichiro Suzuki ,  Shigeki Iwanami ,  Shiro Kawasaki ,  Nobuhiro Miura

IPC分类号： F04B27/18

CPC分类号： F04B27/18

摘要： A swash plate type compressor has a rotary shaft, an inclined swash plate for rotation with the shaft, and a plurality of pistons connected to the swash plate. Each piston defines at both ends thereof a pair of working chambers. The piston reciprocates while being subjected to a swing motion concomitant with the rotation of the swash plate, to suck a fluid into the working chambers for compression. The swash plate is mounted on the shaft through a support unit which serves to selectively vary the inclination of the swash plate and shift the center of rotation of the swash plate along the shaft. The fluid is introduced from a suction passage through and around the swash plate to suction chambers formed adjacent the working chambers. A bypass passage is formed to directly communicate the suction passage with the suction chamber on one side of the shaft while bypassing the swash plate. When the inclination of the swash plate is decreased and the rotational center position thereof is shifted so that substantially no compression of fluid is completed in the working chambers on the one side of the shaft to decrease the displacement of the compressor, the fluid flows in the one side suction chamber through the bypass passage responsively to the flow of fluid toward another side working chambers to lubricate and cool sliding parts for the shaft.

摘要翻译： 斜盘式压缩机具有旋转轴，用于与轴一起旋转的倾斜斜盘和连接到斜盘的多个活塞。 每个活塞在其两端限定一对工作室。 活塞在与旋转斜盘的旋转同时进行摆动运动的同时往复运动，将流体吸入工作室进行压缩。 旋转斜盘通过支撑单元安装在轴上，支撑单元用于选择性地改变斜盘的倾斜度并沿着轴移动斜盘的旋转中心。 流体从吸入通道通过旋转斜盘周围引入到邻近工作室形成的吸入室。 旁路通道形成为在旁路旋转斜盘时将抽吸通道与轴的一侧上的吸入室直接连通。 当斜盘的倾斜减小并且其旋转中心位置移动时，使得在轴的一侧的工作室中基本上没有完成流体的压缩以减小压缩机的位移，则流体在 一侧抽吸室通过旁路通道，响应于流体流向另一侧工作室，以润滑和冷却用于轴的滑动部件。