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1. 发明申请

US20110242139A1 DISPLAY DRIVER 审中-公开
标题翻译：显示驱动器
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。

2. 发明授权

US08552946B2 Display device, display driver and image display method 有权
标题翻译：显示设备，显示驱动程序和图像显示方法
公开(公告)号：US08552946B2
公开(公告)日：2013-10-08
申请号：US12108583
申请日：2008-04-24
申请人： Yoshiki Kurokawa , Yukari Katayama , Hiroki Awakura , Naoki Takada , Yasuyuki Kudo , Akihito Akai , Goki Toshima , Akihisa Aoyama , Goro Sakamaki
发明人： Yoshiki Kurokawa , Yukari Katayama , Hiroki Awakura , Naoki Takada , Yasuyuki Kudo , Akihito Akai , Goki Toshima , Akihisa Aoyama , Goro Sakamaki
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G3/3611 , G09G2320/0276 , G09G2320/064 , G09G2320/0646 , G09G2320/0653 , G09G2320/066 , G09G2330/021 , G09G2360/145 , G09G2360/16
摘要： In a display device and a display driver, when a grayscale of a display image is equal to or lower than a specific grayscale value obtained from a histogram of the display image, a display grayscale is extended with a linear function. On the other hand, when a grayscale of a display image is equal to or higher than the specific grayscale value, histogram equalization of a part higher than the specific grayscale value is performed, and the display grayscale is extended with a non-linear function obtained from the histogram equalization.
摘要翻译：在显示装置和显示驱动器中，当显示图像的灰阶等于或低于从显示图像的直方图获得的特定灰度值时，以线性函数扩展显示灰度级。另一方面，当显示图像的灰阶等于或高于特定灰度值时，执行高于特定灰度值的部分的直方图均衡，并且利用获得的非线性函数来扩展显示灰度级从直方图均衡。

3. 发明申请

US20110242120A1 DISPLAY APPARATUS AND DRIVIING DEVICE FOR DISPLAYING 审中-公开
标题翻译：用于显示的显示装置和驱动装置
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。

4. 发明申请

US20080316167A1 DISPLAY DRIVER 审中-公开
标题翻译：显示驱动器
公开(公告)号：US20080316167A1
公开(公告)日：2008-12-25
申请号：US12134726
申请日：2008-06-06
申请人： Yoshiki KUROKAWA , Yukari Katayama , Yasuyuki Kudo , Akihito Akai , Goki Toshima , Akihisa Aoyama
发明人： Yoshiki KUROKAWA , Yukari Katayama , Yasuyuki Kudo , Akihito Akai , Goki Toshima , Akihisa Aoyama
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G3/3611 , G09G2320/064 , G09G2320/0646 , G09G2320/066 , G09G2330/021 , G09G2360/16
摘要： A display driver driving a display panel according to inputted display data comprises: a first circuit changing brightness of a display image by conversion of the display data based on a first reference value and a second reference value, the first reference value being a display data value at a first position in an upper part of a histogram of the inputted display data, and the second reference value being a display data value at a second position in a lower portion of the histogram; a second circuit changing brightness of a illuminating device illuminating the display panel based on the first reference value; and a control circuit performing a processing of making the brightness of the display image high by the first circuit and a processing of making the brightness of the illuminating device low by the second circuit in correlation with the brightness of the display image.
摘要翻译：根据输入的显示数据驱动显示面板的显示驱动器包括：第一电路，通过基于第一参考值和第二参考值转换显示数据来改变显示图像的亮度，第一参考值是显示数据值在输入的显示数据的直方图的上部的第一位置处，并且第二参考值是在直方图的下部的第二位置处的显示数据值; 基于第一参考值改变照明显示面板的照明装置的亮度的第二电路; 以及控制电路，执行通过第一电路使显示图像的亮度变高的处理，以及通过与显示图像的亮度相关地将第二电路的照明装置的亮度降低的处理。

5. 发明申请

US20110234648A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20110234648A1
公开(公告)日：2011-09-29
申请号：US13050981
申请日：2011-03-18
申请人： Yoshihisa OOISHI , Goki Toshima , Junichi Maruyama , Misa Owa
发明人： Yoshihisa OOISHI , Goki Toshima , Junichi Maruyama , Misa Owa
IPC分类号： G09G5/10
CPC分类号： G09G3/3648 , G09G2320/0252 , G09G2340/16
摘要： Provided is a display device including: a control portion; a display panel including one or more pixel circuits and an image signal line connected to the pixel circuits; and an image signal line driving circuit. The control portion includes a difference acquiring circuit for acquiring difference data between a value of a gray-level potential, which is to be applied to one of the pixel circuits from the image signal line, and a value of a precharge potential based on the gray-level potential. The image signal line driving circuit calculates the precharge potential based on the value of the gray-level potential and the difference data, and supplies the image signal line with the precharge potential and the gray-level potential in sequence.
摘要翻译：提供一种显示装置，包括：控制部; 包括一个或多个像素电路和连接到像素电路的图像信号线的显示面板; 和图像信号线驱动电路。控制部分包括差分获取电路，用于从图像信号线获取要应用于像素电路中的一个的灰度电位的值与基于灰度的预充电电位的值之间的差分数据水平的潜力。图像信号线驱动电路基于灰度电位和差分数据的值来计算预充电电位，并且依次提供具有预充电电位和灰度电位的图像信号线。

6. 发明授权

US08957883B2 Display device 有权
标题翻译：显示设备
公开(公告)号：US08957883B2
公开(公告)日：2015-02-17
申请号：US12844923
申请日：2010-07-28
申请人： Junichi Maruyama , Koji Hosogi , Goki Toshima , Misa Owa , Naruhiko Kasai , Kikuo Ono
发明人： Junichi Maruyama , Koji Hosogi , Goki Toshima , Misa Owa , Naruhiko Kasai , Kikuo Ono
IPC分类号： G06F3/00 , G09G5/00 , G09G3/20 , G09G3/36
CPC分类号： G09G3/2096 , G09G3/3666 , G09G2310/0221 , G09G2310/04 , G09G2320/0247 , G09G2320/10 , G09G2330/021 , G09G2340/0435
摘要： A display device includes a frame frequency conversion circuit configured to convert a frame frequency of an input display data and a timing control circuit configured to control a first drive circuit and a second drive circuit based on a frame frequency after the conversion. The display device generates at least two display areas on the display panel. The at least two display areas display images at different frame frequencies. The display device further includes a switch unit configured to display an image at the frame frequency before the conversion at one of the at least two display areas and configured to display an image at the frame frequency after the conversion at another one of the at least two display areas. At least one of a boundary position and a size of the at least two display areas varies with time.
摘要翻译：显示装置包括：帧频转换电路，被配置为转换输入显示数据的帧频;以及定时控制电路，被配置为基于转换后的帧频控制第一驱动电路和第二驱动电路。显示装置在显示面板上产生至少两个显示区域。至少两个显示区域以不同的帧频显示图像。所述显示装置还包括：开关单元，被配置为在所述至少两个显示区域之一处的所述转换之前以帧频显示图像，并且被配置为在所述至少两个显示区域中的另一个上转换之后以帧频率显示图像显示区域。至少两个显示区域的边界位置和尺寸中的至少一个随着时间而变化。

7. 发明申请

US20110234569A1 LIQUID CRYSTAL DISPLAY DEVICE 有权
标题翻译：液晶显示装置
公开(公告)号：US20110234569A1
公开(公告)日：2011-09-29
申请号：US13050979
申请日：2011-03-18
申请人： Yoshihisa OOISHI , Misa Owa , Junichi Maruyama , Goki Toshima
发明人： Yoshihisa OOISHI , Misa Owa , Junichi Maruyama , Goki Toshima
IPC分类号： G09G3/36 , G06F3/038
CPC分类号： G09G3/3685 , G09G3/3648 , G09G2310/0205 , G09G2310/0251 , G09G2310/0275 , G09G2320/0285 , G09G2320/041
摘要： A data line driving section (6) outputs a video signal voltage for each pixel to a data line (DL) for each predetermined period in order. In outputting a video signal voltage for a pixel, the data line driving section (6) outputs a gradation signal voltage having a voltage corresponding to a gradation value of the pixel as the video signal voltage during a second part of the predetermined period, and outputs a correction gradation signal voltage different from the gradation signal voltage as the video signal voltage during a first part of the predetermined period. A control section (4) changes a relationship between the correction gradation signal voltage and the gradation signal voltage based on a combination of the gradation value of the pixel and a gradation value of a pixel preceding the pixel.
摘要翻译：数据线驱动部分（6）按照每个预定周期将每个像素的视频信号电压输出到数据线（DL）。在输出像素的视频信号电压时，数据线驱动部（6）在预定期间的第二部分输出具有与像素的灰度值对应的电压作为视频信号电压的灰度信号电压，并输出与预定周期的第一部分期间的视频信号电压不同于灰度信号电压的校正灰度信号电压。控制部分（4）基于像素的灰度值和像素之前的像素的灰度值的组合来改变校正灰度信号电压和灰度信号电压之间的关系。

8. 发明申请

US20100289735A1 BACKLIGHT DEVICE AND DISPLAY DEVICE 有权
标题翻译：背光装置和显示装置
公开(公告)号：US20100289735A1
公开(公告)日：2010-11-18
申请号：US12778281
申请日：2010-05-12
申请人： Koji HOSOGI , Junichi Maruyama , Misa Owa , Kikuo Ono , Goki Toshima , Masahiro Fukata
发明人： Koji HOSOGI , Junichi Maruyama , Misa Owa , Kikuo Ono , Goki Toshima , Masahiro Fukata
IPC分类号： G09G3/36 , G02F1/13357
CPC分类号： G09G3/3406 , G09G2330/021 , H05B33/086
摘要： A resistive element (115) is connected in series to a cathode terminal of an LED light source at a last stage (or an anode terminal of an LED light source at a first stage) of an LED chain (116), and the resistive element (115) is configured to be variable in resistance value in accordance with a variation of voltage drops of the LEDs connected in series so that a resistive element connected to an LED chain having a large voltage drop has a small resistance value while a resistive element connected to an LED chain having a small voltage drop has a large resistance value. With this configuration, the power, which has been wasted otherwise as heat in the backlight driver IC, may be dispersed to the resistive elements.
摘要翻译：电阻元件（115）在LED链（116）的最后级（或第一级的LED光源的阳极端子）处串联连接到LED光源的阴极端子，并且电阻元件（115）被配置为根据串联连接的LED的电压降的变化而具有可变电阻值，使得连接到具有大电压降的LED链的电阻元件具有小的电阻值，而电阻元件连接具有小电压降的LED链具有大的电阻值。利用这种结构，背光驱动器IC中已被浪费的热量的功率可以分散到电阻元件。

9. 发明申请

US20100265405A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20100265405A1
公开(公告)日：2010-10-21
申请号：US12759068
申请日：2010-04-13
申请人： Goki Toshima , Junichi Maruyama , Koji Hosogi , Misa Owa , Kikuo Ono
发明人： Goki Toshima , Junichi Maruyama , Koji Hosogi , Misa Owa , Kikuo Ono
IPC分类号： H04N5/57
CPC分类号： G09G3/3426 , G09G2320/0247 , G09G2320/0261 , G09G2320/062
摘要： Provided is a display device capable of producing an image of excellent quality with reduced flicker and little reduction in luminance, the display device including: a backlight having light sources such as LED devices arranged two-dimensionally, each of which may be individually modulated in luminance; a moving velocity detection unit VD1 (109) for detecting a moving velocity of an object in a video (for example, moving velocity of a foreground); and a luminance variation control unit (113) for automatically controlling luminance variations of the LED devices for each frame, in accordance with the moving velocity.
摘要翻译：本发明提供一种显示装置，其能够以降低的闪烁和亮度的降低而产生优质的图像，该显示装置包括：背光源，具有二维布置的LED器件等光源，其各自可以以亮度单独调制 ; 用于检测视频中的物体的移动速度的移动速度检测单元VD1（109）（例如，前景的移动速度）; 以及用于根据移动速度自动控制每个帧的LED装置的亮度变化的亮度变化控制单元（113）。

10. 发明授权

US08922597B2 Liquid crystal display device 有权
标题翻译：液晶显示装置
公开(公告)号：US08922597B2
公开(公告)日：2014-12-30
申请号：US13415457
申请日：2012-03-08
申请人： Takashi Nakai , Goki Toshima , Ryutaro Oke , Junichi Maruyama
发明人： Takashi Nakai , Goki Toshima , Ryutaro Oke , Junichi Maruyama
IPC分类号： G09G3/36
CPC分类号： G09G3/3614 , G09G3/3648 , G09G3/3688 , G09G2320/0204 , G09G2320/0223 , G09G2320/0257
摘要： A liquid crystal display device includes a plurality of pixel circuits, data lines, and a data-line driving circuit connected to the data lines. Each of the pixel circuits includes a pixel capacitance having one end provided with a common potential. In accordance with a grayscale value for one of the plurality of pixel circuits, the data-line driving circuit selectively outputs a positive-polarity signal and a negative-polarity signal to the one pixel circuit. The data-line driving circuit outputs the positive-polarity signal and the negative-polarity signal so that an average of a potential of the positive-polarity signal and a potential of the negative-polarity signal corresponding to the grayscale value changes in accordance with the grayscale value, a temperature, and a position of the one pixel circuit.
摘要翻译：液晶显示装置包括连接到数据线的多个像素电路，数据线和数据线驱动电路。每个像素电路包括一端具有公共电位的像素电容。根据多个像素电路中的一个像素电路的灰度值，数据线驱动电路选择性地向一个像素电路输出正极性信号和负极性信号。数据线驱动电路输出正极性信号和负极性信号，使得正极性信号的电位的平均值和对应于灰度值的负极性信号的电位根据灰度值，温度和一个像素电路的位置。

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