公开(公告)号：US08525934B2

公开(公告)日：2013-09-03

申请号：US12677060

申请日：2009-01-23

申请人： Masahiro Okui ,  Toshiyuki Fujine ,  Yasushi Tetsuka ,  Ryuichi Niiyama

发明人： Masahiro Okui ,  Toshiyuki Fujine ,  Yasushi Tetsuka ,  Ryuichi Niiyama

IPC分类号： H04N5/57

CPC分类号： H04N5/20 ,  G09G3/20 ,  G09G3/3406 ,  G09G3/3611 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/0646 ,  G09G2320/0653 ,  G09G2320/066 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/16

摘要： Brightness expression without solid white pattern is enabled, and video expression with an improved black level is achieved. A distortion module (5) reduces the luminance of a backlight source according to the histogram of the video signal so that the contrast may be a predetermined target one. A configuration design unit (13) sets the gain according to the luminance level (BLreduced) of the backlight source selected by the distortion module (5). When setting the gain, the luminance level (BLref) for reference of the backlight source preset according to the video feature value is referenced. If the video feature value meets a predetermined condition, the input video signal is always amplified with the gain. If not, depending on the relation between the BLreduced and the BLref, the input video signal is amplified or not.

摘要翻译： 没有固体白色图案的亮度表达被启用，并且实现了具有改进的黑色电平的视频表达。 失真模块（5）根据视频信号的直方图降低背光源的亮度，使得对比度可以是预定的目标对象。 配置设计单元（13）根据由失真模块（5）选择的背光源的亮度水平（BL减去）设置增益。 在设定增益的情况下，参照根据视频特征值预设的背光源的基准亮度水平（BLref）。 如果视频特征值满足预定条件，则输入视频信号总是以增益放大。 如果不是，取决于BLreduced和BLref之间的关系，输入视频信号被放大或不被放大。

公开(公告)号：US08384654B2

公开(公告)日：2013-02-26

申请号：US12092817

申请日：2006-11-01

申请人： Toshiyuki Fujine ,  Seiji Kohashikawa ,  Yuhya Sekiguchi ,  Yuhichiro Yamaguchi

发明人： Toshiyuki Fujine ,  Seiji Kohashikawa ,  Yuhya Sekiguchi ,  Yuhichiro Yamaguchi

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G2320/0238 ,  G09G2320/0626 ,  G09G2320/064 ,  G09G2320/0653 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/16 ,  H04N5/58 ,  H04N21/42202

摘要： The present invention provides a display device capable of realizing an appropriate screen display luminance in accordance with a video feature quantity and brightness around and sufficiently reducing power consumption. A liquid crystal display apparatus (1) includes: a liquid crystal panel (20) for displaying a video by an input video signal; a backlight unit (17) as a light source for irradiating the liquid crystal panel (20); and a brightness sensor (24) for detecting the brightness around the liquid crystal display apparatus (1). According to the brightness detected by the brightness sensor (24), luminance conversion characteristic defining the light emission luminance of the backlight for the feature quantity (such as APL) of the input video signal is changed. Here, the luminance conversion characteristic is changed so that the light emission luminance is reduced as the brightness around the liquid crystal display apparatus becomes darker and the position of the characteristic modification point as the point where the slope of the luminance conversion characteristic is changed is shifted in the direction of the feature quantity change. According to the obtained luminance conversion characteristic, the light emission luminance of the backlight is controlled.

摘要翻译： 本发明提供一种能够根据视频特征量和亮度实现适当的屏幕显示亮度并充分降低功耗的显示装置。 液晶显示装置（1）包括：用于通过输入视频信号显示视频的液晶面板（20）; 作为用于照射所述液晶面板（20）的光源的背光单元（17）; 以及用于检测液晶显示装置（1）周围的亮度的亮度传感器（24）。 根据由亮度传感器（24）检测到的亮度，改变了对输入视频信号的特征量（例如APL）定义背光的发光亮度的亮度转换特性。 这里，改变亮度转换特性，使得随着液晶显示装置周围的亮度变暗，发光亮度降低，并且特性修改点的位置作为改变亮度变换特性的斜率的点被移位 在特征量变化的方向上。 根据获得的亮度转换特性，控制背光的发光亮度。

公开(公告)号：US20120307163A1

公开(公告)日：2012-12-06

申请号：US13578666

申请日：2011-03-10

申请人： Toshiyuki Fujine ,  Tomoharu Noutoshi

发明人： Toshiyuki Fujine ,  Tomoharu Noutoshi

IPC分类号： G09G3/36 ,  G09G5/02 ,  H04N3/02

CPC分类号： G02F1/133514 ,  G02F1/13439 ,  G02F2201/52 ,  G09G2300/0452

摘要： Disclosed is a display device in which high resolution representation is made by generating and displaying display data for each sub-pixel, and in which reduction in image quality is improved. The display device is provided with a display panel in which one pixel is constructed from sub-pixels of at least 4 colors. The display device generates the display data for each sub-pixel in accordance with an input image signal, and displays the display data on the display panel. Within the sub-pixels, high brightness sub-pixels which are the two sub-pixels having the highest brightness are arranged alternately with the other sub-pixels. Also, the area of each high brightness sub-pixel is smaller than that of the other sub-pixels. In a preferred example, the areas of the two sub-pixels having the highest brightness and the areas of the other two sub-pixels have area ratios in the following order: 1.0:1.0:1.6:1.6.

摘要翻译： 公开了一种显示装置，其中通过生成和显示每个子像素的显示数据进行高分辨率表示，并且其中提高了图像质量的降低。 显示装置设置有显示面板，其中一个像素由至少4种颜色的子像素构成。 显示装置根据输入图像信号生成每个子像素的显示数据，并将显示数据显示在显示面板上。 在子像素内，具有最高亮度的两个子像素的高亮度子像素与其他子像素交替排列。 此外，每个高亮度子像素的面积小于其他子像素的面积。 在优选示例中，具有最高亮度的两个子像素的面积和其他两个子像素的面积按以下顺序具有面积比：1.0：1.0：1.6：1.6。

公开(公告)号：US20090140656A1

公开(公告)日：2009-06-04

申请号：US12063575

申请日：2006-02-03

申请人： Seiji Kohashikawa ,  Toshiyuki Fujine

发明人： Seiji Kohashikawa ,  Toshiyuki Fujine

IPC分类号： H05B39/04

CPC分类号： H05B33/0869 ,  G01J1/0271 ,  G01J1/04 ,  G01J1/0407 ,  G01J1/0422 ,  G01J1/32 ,  G01J1/4228 ,  G01J3/14 ,  G01J2003/1213 ,  G02B6/0063 ,  G02B6/0068 ,  G02F1/13318 ,  G02F1/133603 ,  G02F1/133609 ,  H05B33/0821 ,  H05B33/0863 ,  H05B35/00 ,  H05B37/0272

摘要： A light emission device capable of holding a uniform color in various environments. A light source control device has a light detection device for detecting emission brightness of light sources that emit different colors and controlling emission brightness of at least one light source of the light sources based on the detection result of the light detection device. A through-hole is formed in a reflection member for reflecting light emitted from the light source, and the reflection is in a predetermined direction. The light detection device is provided across the reflection member from the light source, and the light propagation member is provided at the through-hole.

摘要翻译： 能够在各种环境中保持均匀颜色的发光装置。 光源控制装置具有光检测装置，用于根据光检测装置的检测结果，检测发出不同颜色的光源的发光亮度，并控制光源的至少一个光源的发光亮度。 在用于反射从光源发射的光的反射构件中形成通孔，并且反射处于预定方向。 光检测装置从光源穿过反射构件设置，光传播构件设置在通孔处。

公开(公告)号：US20150070376A1

公开(公告)日：2015-03-12

申请号：US14371777

申请日：2012-07-05

申请人： Toshiyuki Fujine ,  Yoji Shiraya

发明人： Toshiyuki Fujine ,  Yoji Shiraya

IPC分类号： G09G3/36

CPC分类号： G09G3/36 ,  G09G3/3426 ,  G09G2320/0238 ,  G09G2320/0271 ,  G09G2320/0626 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2360/144 ,  G09G2360/16 ,  H04N5/20

摘要： Areas of a video signal that represent light emission are detected, the luminance levels at which said light emission areas are displayed are enhanced, emphasizing said areas, and said luminance stretching is controlled in accordance with the brightness of the surrounding environment, thereby increasing the resulting sense of brightness and improving the appearance of the video. A light emission detecting portion (12) counts pixels in order to generate a histogram of a prescribed feature quantity of an input video signal and identifies areas that fall within a prescribed range at the upper end of said histogram as being light emission areas. On the basis of a brightness-related index computed from the input video signal on the basis of prescribed conditions, an area-active-control/luminance-stretching portion (14) performs luminance stretching, increasing the luminance of a backlight portion (16) and reducing the luminance of non-light emission areas of the video signal, i.e. the areas other than the light emitting areas. When doing so, the area-active-control/luminance-stretching portion (14) switches between control curves, which define the relationship between the brightness-related index and the amount of stretching, in accordance with the brightness of the surroundings of the device as detected by a brightness detection portion (19).

摘要翻译： 检测表示发光的视频信号的区域，增强显示所述发光区域的亮度水平，强调所述区域，并且根据周围环境的亮度来控制所述亮度拉伸，从而增加所得到的 明亮的感觉和改善视频的外观。 发光检测部分（12）对像素进行计数，以便产生输入视频信号的规定特征量的直方图，并且将位于所述直方图的上端的规定范围内的区域识别为发光区域。 基于根据规定条件从输入视频信号计算的亮度相关指标，区域主动控制/亮度拉伸部分（14）执行亮度拉伸，增加背光部分（16）的亮度， 并且降低视频信号的非发光区域的亮度，即发光区域以外的区域。 当这样做时，区域主动控制/亮度拉伸部分（14）根据设备的周围环境的亮度来切换限定亮度相关指数和拉伸量之间的关系的控制曲线 如由亮度检测部分（19）检测的。

公开(公告)号：US20140368527A1

公开(公告)日：2014-12-18

申请号：US14373735

申请日：2012-07-05

申请人： Toshiyuki Fujine ,  Yoji Shiraya

发明人： Toshiyuki Fujine ,  Yoji Shiraya

IPC分类号： G09G5/10

CPC分类号： G09G5/10 ,  G09G3/3413 ,  G09G3/3426 ,  G09G2320/0238 ,  G09G2320/0646 ,  H04N5/20

摘要： Areas of a video signal that represent light emission are detected, the luminance levels at which said light emission areas are displayed are enhanced, emphasizing said areas, and said luminance stretching is controlled in accordance with a set image quality mode, thereby producing consistently natural, high-quality visual imagery. A light emission detecting portion (12) counts pixels in order to generate a histogram of a prescribed feature quantity of an input video signal and identifies areas that fall within a prescribed range at the upper end of said histogram as being light emission areas. On the basis of a brightness-related index computed from the input video signal on the basis of prescribed conditions, an area-active-control/luminance-stretching portion (14) performs luminance stretching, increasing the luminance of a backlight portion (16) and reducing the luminance of non-light emission areas of the video signal, i.e. the areas other than the light emitting areas. When doing so, the area-active-control/luminance-stretching portion (14) switches between control curves, which define the relationship between the brightness-related index and the amount of stretching, in accordance with an image quality mode set by an image quality mode setting portion (19).

摘要翻译： 检测出表示发光的视频信号的区域，增强显示所述发光区域的亮度水平，强调所述区域，并且根据设定的图像质量模式控制所述亮度拉伸，从而产生一致的自然， 高品质的视觉图像。 发光检测部分（12）对像素进行计数，以便产生输入视频信号的规定特征量的直方图，并且将位于所述直方图的上端的规定范围内的区域识别为发光区域。 基于根据规定条件从输入视频信号计算的亮度相关指标，区域主动控制/亮度拉伸部分（14）执行亮度拉伸，增加背光部分（16）的亮度， 并且降低视频信号的非发光区域的亮度，即发光区域以外的区域。 当这样做时，区域主动控制/亮度拉伸部分（14）根据由图像设置的图像质量模式在限定亮度相关指数和拉伸量之间的关系的控制曲线之间切换 质量模式设定部（19）。

公开(公告)号：US20140300819A1

公开(公告)日：2014-10-09

申请号：US14357231

申请日：2012-06-27

申请人： Toshiyuki Fujine ,  Tomoharu Noutoshi ,  Yoji Shiraya

发明人： Toshiyuki Fujine ,  Tomoharu Noutoshi ,  Yoji Shiraya

IPC分类号： G09G3/34

CPC分类号： G09G3/34 ,  G09G3/3406 ,  G09G2320/0646 ,  G09G2360/16 ,  H04N5/202

摘要： The purpose of the present invention is to increase a feeling of brightness and express a video with high contrast by detecting a part of a video signal that emits light, enhancing the display luminance of the light-emitting part, and displaying said part. A light emission detection portion (1) uses a prescribed feature quantity related to the brightness of an input video signal, predetermines the light emission quantity for the video signal on the basis of the relationship with the feature quantity, and detects the light emission quantity for each input video signal frame from the feature quantity. A backlight luminance stretch portion (3) stretches the light source luminance of the backlight according to the light emission quantity detected. A video signal luminance stretch portion (6) stretches the video signal according to the light emission quantity or the luminance distribution of the input video signal. A mapping portion (7) carries out mapping of the video signal by reducing the luminance of the parts without light emission. Therefore, the part of the input video signal that can be seen as emitting light is enhanced by luminance stretching of the backlight and stretching of the video signal.

摘要翻译： 本发明的目的是通过检测发出光的视频信号的一部分，增强发光部分的显示亮度和显示所述部分来增加亮度感并表现具有高对比度的视频。 发光检测部（1）使用与输入视频信号的亮度相关的规定特征量，根据与特征量的关系来预先确定视频信号的发光量，并且检测发光量 每个输入视频信号帧从特征量。 背光源亮度伸展部（3）根据检测出的发光量使背光源的光源亮度伸长。 视频信号亮度延伸部分（6）根据输入视频信号的发光量或亮度分布拉伸视频信号。 映射部分（7）通过减少部分的亮度而不发光来执行视频信号的映射。 因此，可以看作发光的输入视频信号的部分通过背光的亮度拉伸和视频信号的拉伸来增强。

公开(公告)号：US20110279740A1

公开(公告)日：2011-11-17

申请号：US13144256

申请日：2010-01-12

申请人： Toshiyuki Fujine ,  Takashi Kanda ,  Toshiyuki Gotoh ,  Naoko Kondoh

发明人： Toshiyuki Fujine ,  Takashi Kanda ,  Toshiyuki Gotoh ,  Naoko Kondoh

IPC分类号： H04N3/14

CPC分类号： H04N1/6058 ,  G09G5/02 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2340/06 ,  H04N9/67 ,  H04N9/68

摘要： When a wide color gamut display displays video based on a video signal that complies with a narrower color reproduction range standard, in order to make full use of the feature of the wide color gamut display capable of displaying highly saturated and vivid reds, while eliminating the problem of seeing glaring images in the part of the red color region near the highest brightness and saturation, a video processing circuit (2) reduces and corrects the signal value of the input video signal, which represents the colors within the color range to be corrected, which is within a specified saturation range from the highest saturation to the middle saturation inside a specified hue range centered on the red hue in the color reproduction range (an expanded color reproduction range wider than the sRGB standard color reproduction range) of a liquid crystal panel (4), and which is within a specified brightness range from the highest brightness to the middle brightness inside that range, so that the saturation and brightness thereof change to saturation and brightness within a predetermined middle color range between the expanded color reproduction range and the color reproduction range of the standard to which the input video signal complies.

摘要翻译： 当宽色域显示器基于符合较窄颜色再现范围标准的视频信号显示视频时，为了充分利用能够显示高度饱和和鲜艳红色的宽色域显示器的特征，同时消除 视频处理电路（2）在接近最高亮度和饱和度的红色区域的部分看到亮度图像的问题，减少并校正输入视频信号的信号值，该信号值表示要校正的颜色范围内的颜色 在从液晶的颜色再现范围（比sRGB标准色彩再现范围宽的扩展颜色再现范围）的红色色调的特定色相范围内的最高饱和度到中间饱和度的规定饱和范围内 面板（4），并且在该范围内从最高亮度到中间亮度的指定亮度范围内，使得t 其饱和度和亮度在扩展色彩再现范围和输入视频信号所符合的标准的色彩再现范围之间的预定中间色彩范围内变为饱和度和亮度。

公开(公告)号：US07911430B2

公开(公告)日：2011-03-22

申请号：US10544231

申请日：2004-01-30

申请人： Toshiyuki Fujine

发明人： Toshiyuki Fujine

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G09G3/2014 ,  G09G2310/061 ,  G09G2320/0247 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/0613 ,  G09G2320/0673

摘要： A liquid crystal display has an LCD controller, a microcomputer, and a storage section. The LCD controller is capable of setting up an image display period for performing display based on input image data and a black display period for performing display based on black display data, within one field period. The microcomputer switches the mode of the LCD controller between an impulse-drive mode having the image display period and the black display period within the one field period, and a hold drive mode having only the image display period. The storage section stores sets of reference gradation voltage data that are previously specified. A reference gradation voltage, which is generated at a reference gradation voltage generation section and used for driving the liquid crystal display panel, is variable according to the mode. Thus, it is possible to realize the liquid crystal display that can suppress changes in gamma characteristics so as to prevent deterioration of display quality even when the mode is switched.

摘要翻译： 液晶显示器具有LCD控制器，微型计算机和存储部分。 LCD控制器能够在一个场周期内基于输入图像数据和用于基于黑色显示数据执行显示的黑色显示周期来建立用于执行显示的图像显示周期。 微型计算机在具有图像显示周期的脉冲驱动模式和一个场周期内的黑色显示周期之间切换LCD控制器的模式以及仅具有图像显示周期的保持驱动模式。 存储部分存储先前指定的参考灰度电压数据集。 在基准灰度电压产生部分产生并用于驱动液晶显示面板的基准灰度电压根据该模式是可变的。 因此，即使切换模式，也可以实现能抑制γ特性变化的液晶显示器，以防止显示质量的劣化。

公开(公告)号：US20100328535A1

公开(公告)日：2010-12-30

申请号：US12677060

申请日：2009-01-23

申请人： Masahiro Okui ,  Toshiyuki Fujine ,  Yasushi Tetsuka ,  Ryuichi Niiyama

发明人： Masahiro Okui ,  Toshiyuki Fujine ,  Yasushi Tetsuka ,  Ryuichi Niiyama

IPC分类号： H04N9/74

CPC分类号： H04N5/20 ,  G09G3/20 ,  G09G3/3406 ,  G09G3/3611 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/0646 ,  G09G2320/0653 ,  G09G2320/066 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/16

摘要： Brightness expression without solid white pattern is enabled, and video expression with an improved black level is achieved. A distortion module (5) reduces the luminance of a backlight source according to the histogram of the video signal so that the contrast may be a predetermined target one. A configuration design unit (13) sets the gain according to the luminance level (BLreduced) of the backlight source selected by the distortion module (5). When setting the gain, the luminance level (BLref) for reference of the backlight source preset according to the video feature value is referenced. If the video feature value meets a predetermined condition, the input video signal is always amplified with the gain. If not, depending on the relation between the BLreduced and the BLref, the input video signal is amplified or not.

摘要翻译： 没有固体白色图案的亮度表达被启用，并且实现了具有改进的黑色电平的视频表达。 失真模块（5）根据视频信号的直方图降低背光源的亮度，使得对比度可以是预定的目标对象。 配置设计单元（13）根据由失真模块（5）选择的背光源的亮度级（BL减少）设置增益。 在设定增益的情况下，参照根据视频特征值预设的背光源的基准亮度水平（BLref）。 如果视频特征值满足预定条件，则输入视频信号总是以增益放大。 如果不是，取决于BLreduced和BLref之间的关系，输入视频信号被放大或不被放大。