公开(公告)号：US07911558B2

公开(公告)日：2011-03-22

申请号：US12127025

申请日：2008-05-27

申请人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

发明人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

IPC分类号： G02F1/1333 ,  G02F1/1335

CPC分类号： G02F1/133608 ,  G02F1/133604 ,  G02F2001/133612

摘要： An image display apparatus includes a backlight unit including a plurality of light sources arranged in a flat, a reflecting portion for reflecting light from the light sources, a diffuser for diffusing the light from the light sources and the light reflected from the reflecting portion, and a chassis for maintaining or supporting the light sources, the reflecting portion and the diffuser; and a liquid crystal display unit which receives the light diffused by the diffuser of the backlight unit. Concave portions are formed in the chassis at positions corresponding to electrodes of the plurality of light sources, positions corresponding to light-emitting portions of the light sources are arranged in a flat, and a circuit for driving the liquid crystal display unit is provided on a rear surface of a planar portion of the chassis. Accordingly, it is possible to realize a thin lightweight backlight with high luminance and high luminance uniformity.

摘要翻译： 一种图像显示装置，包括：背光单元，包括平面布置的多个光源，用于反射来自光源的光的反射部;漫射来自光源的光和从反射部反射的光; 用于维持或支撑光源的底盘，反射部分和扩散器; 以及液晶显示单元，其接收由所述背光单元的漫射器漫射的光。 凹槽部分形成在底座中对应于多个光源的电极的位置处，与光源的发光部分相对应的位置被布置成平面，并且用于驱动液晶显示单元的电路设置在 底盘的平面部分的后表面。 因此，可以实现具有高亮度和高亮度均匀性的薄型轻质背光。

公开(公告)号：US07940351B2

公开(公告)日：2011-05-10

申请号：US12230726

申请日：2008-09-04

申请人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

发明人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

IPC分类号： G02F1/1335

CPC分类号： G02F1/133611 ,  G02F1/133603 ,  G02F2001/133607 ,  G02F2203/02

摘要： An image display apparatus includes: a plurality of light sources for emitting light; an optical uniformizing portion for uniformizing light emitted from the plurality of light sources; a total reflection portion disposed above the plurality of light sources, the total reflection portion totally reflecting light from the optical uniformizing portion; an optical guide portion for guiding light totally reflected at the total reflection portion; an optical diffusion unit for diffusing light from the total reflection portion and outputting the diffused light; an optical parallelizing unit for parallelizing light from the optical diffusion unit; and a liquid crystal panel for modulating light from the optical parallelizing unit into an optical image in accordance with an image signal and displaying the optical image.

摘要翻译： 一种图像显示装置包括：多个用于发光的光源; 用于使从所述多个光源发射的光均匀化的光学均匀化部分; 全反射部分，设置在多个光源的上方，全反射部分全反射来自光学均匀化部分的光; 用于引导在全反射部分全反射的光的光导部; 光漫射单元，用于漫射来自全反射部分的光并输出漫射光; 用于使来自光扩散单元的光并行化的光学并行化单元; 以及用于根据图像信号将来自光学并行化单元的光调制成光学图像并显示光学图像的液晶面板。

公开(公告)号：US20080297683A1

公开(公告)日：2008-12-04

申请号：US12129743

申请日：2008-05-30

申请人： Seiji MURATA ,  Yasutaka Tsuru ,  Satoshi Ouchi ,  Mayumi Nagayoshi

发明人： Seiji MURATA ,  Yasutaka Tsuru ,  Satoshi Ouchi ,  Mayumi Nagayoshi

IPC分类号： G02F1/13357

CPC分类号： G02F1/133604 ,  G02F1/133608 ,  G02F1/133611

摘要： A direct type backlight unit used in a liquid crystal display device is provided which can suppress lowering of luminance at an electrode portion of a linear light source. A reflecting plate is formed on a side wall of a box-shaped reflector close to an end of a linear light source. The reflector reflects light beams from the linear light source to be guided toward a liquid crystal panel. The reflecting plate on the side wall has at least two inclined surfaces. The inclined surfaces may have a stepped shape or a convex ridge shape. According to this arrangement, it is possible to reduce or eliminate decrease of the luminance level at ends of an effective display area of a liquid crystal panel.

摘要翻译： 提供了一种用于液晶显示装置的直接型背光单元，其可以抑制线性光源的电极部分处的亮度降低。 反射板形成在靠近线状光源的端部的箱形反射器的侧壁上。 反射器反射来自线状光源的光束被引导到液晶面板。 侧壁上的反射板具有至少两个倾斜表面。 倾斜表面可以具有阶梯形状或凸脊形状。 根据该结构，能够降低或消除液晶面板的有效显示区域的端部的亮度水平的降低。

公开(公告)号：US20080297692A1

公开(公告)日：2008-12-04

申请号：US12127025

申请日：2008-05-27

申请人： Mayumi NAGAYOSHI ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

发明人： Mayumi NAGAYOSHI ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

IPC分类号： G02F1/1335

CPC分类号： G02F1/133608 ,  G02F1/133604 ,  G02F2001/133612

摘要： An image display apparatus includes a backlight unit including a plurality of light sources arranged in a flat, a reflecting portion for reflecting light from the light sources, a diffuser for diffusing the light from the light sources and the light reflected from the reflecting portion, and a chassis for maintaining or supporting the light sources, the reflecting portion and the diffuser; and a liquid crystal display unit which receives the light diffused by the diffuser of the backlight unit. Concave portions are formed in the chassis at positions corresponding to electrodes of the plurality of light sources, positions corresponding to light-emitting portions of the light sources are arranged in a flat, and a circuit for driving the liquid crystal display unit is provided on a rear surface of a planar portion of the chassis. Accordingly, it is possible to realize a thin lightweight backlight with high luminance and high luminance uniformity.

摘要翻译： 一种图像显示装置，包括：背光单元，包括平面布置的多个光源，用于反射来自光源的光的反射部;漫射来自光源的光和从反射部反射的光; 用于维持或支撑光源的底盘，反射部分和扩散器; 以及液晶显示单元，其接收由所述背光单元的漫射器漫射的光。 凹槽部分形成在底座中对应于多个光源的电极的位置处，与光源的发光部分相对应的位置被布置成平面，并且用于驱动液晶显示单元的电路设置在 底盘的平面部分的后表面。 因此，可以实现具有高亮度和高亮度均匀性的薄型轻质背光。

公开(公告)号：US08009246B2

公开(公告)日：2011-08-30

申请号：US12129743

申请日：2008-05-30

申请人： Seiji Murata ,  Yasutaka Tsuru ,  Satoshi Ouchi ,  Mayumi Nagayoshi

发明人： Seiji Murata ,  Yasutaka Tsuru ,  Satoshi Ouchi ,  Mayumi Nagayoshi

IPC分类号： G02F1/1335 ,  G02F1/1333 ,  F21V7/04

CPC分类号： G02F1/133604 ,  G02F1/133608 ,  G02F1/133611

摘要： A direct type backlight unit used in a liquid crystal display device is provided which can suppress lowering of luminance at an electrode portion of a linear light source. A reflecting plate is formed on a side wall of a box-shaped reflector close to an end of a linear light source. The reflector reflects light beams from the linear light source to be guided toward a liquid crystal panel. The reflecting plate on the side wall has at least two inclined surfaces. The inclined surfaces may have a stepped shape or a convex ridge shape. According to this arrangement, it is possible to reduce or eliminate decrease of the luminance level at ends of an effective display area of a liquid crystal panel.

摘要翻译： 提供了一种用于液晶显示装置的直接型背光单元，其可以抑制线性光源的电极部分处的亮度降低。 反射板形成在靠近线状光源的端部的箱形反射器的侧壁上。 反射器反射来自线状光源的光束被引导到液晶面板。 侧壁上的反射板具有至少两个倾斜表面。 倾斜表面可以具有阶梯形状或凸脊形状。 根据该结构，能够降低或消除液晶面板的有效显示区域的端部的亮度水平的降低。

公开(公告)号：US20090059125A1

公开(公告)日：2009-03-05

申请号：US12230726

申请日：2008-09-04

申请人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

发明人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

IPC分类号： G02F1/13357

CPC分类号： G02F1/133611 ,  G02F1/133603 ,  G02F2001/133607 ,  G02F2203/02

摘要： An image display apparatus includes: a plurality of light sources for emitting light; an optical uniformizing portion for uniformizing light emitted from the plurality of light sources; a total reflection portion disposed above the plurality of light sources, the total reflection portion totally reflecting light from the optical uniformizing portion; an optical guide portion for guiding light totally reflected at the total reflection portion; an optical diffusion unit for diffusing light from the total reflection portion and outputting the diffused light; an optical parallelizing unit for parallelizing light from the optical diffusion unit; and a liquid crystal panel for modulating light from the optical parallelizing unit into an optical image in accordance with an image signal and displaying the optical image.

摘要翻译： 一种图像显示装置包括：多个用于发光的光源; 用于使从所述多个光源发射的光均匀化的光学均匀化部分; 全反射部分，设置在多个光源的上方，全反射部分全反射来自光学均匀化部分的光; 用于引导在全反射部分全反射的光的光导部; 光漫射单元，用于漫射来自全反射部分的光并输出漫射光; 用于使来自光扩散单元的光并行化的光学并行化单元; 以及用于根据图像信号将来自光学并行化单元的光调制成光学图像并显示光学图像的液晶面板。

公开(公告)号：US08957880B2

公开(公告)日：2015-02-17

申请号：US12491334

申请日：2009-06-25

申请人： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

发明人： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

IPC分类号： G06F3/038 ,  G09G5/00 ,  G09G3/36 ,  F21V7/04 ,  G09G3/34

CPC分类号： G09G3/342 ,  G09G3/36 ,  G09G2320/0233 ,  G09G2320/062

摘要： In a local dimming technology for reducing power consumption of a display device using a backlight as in a liquid crystal display, the backlight is configured by a plurality of independently controllable light sources, an image is divided into areas of the same number as that of the controllable light sources and light emission intensity of the light source is calculated based on a feature value of each area. However, this technology has a problem that when a backlight luminance distribution within each area is not uniform, image quality is deteriorated or a power consumption reduction effect is lowered.In the present invention, the image is divided into areas of the number greater than that of the controllable light sources, and the light emission intensity of each light source is determined based on the feature values of a plurality of areas to reduce the above-described problem.

摘要翻译： 在用于降低液晶显示器中使用背光的显示装置的功耗的局部调光技术中，背光由多个可独立控制的光源构成，图像被划分为与 基于每个区域的特征值计算可控光源和光源的发光强度。 然而，该技术存在的问题是，当各区域内的背光亮度分布不均匀时，图像质量劣化或降低功耗降低效果。 在本发明中，将图像分割为比可控光源大的数量的区域，并且基于多个区域的特征值来确定每个光源的发光强度，以减少上述 问题。

公开(公告)号：US07671901B2

公开(公告)日：2010-03-02

申请号：US11195870

申请日：2005-08-03

申请人： Kozo Masuda ,  Yasutaka Tsuru

发明人： Kozo Masuda ,  Yasutaka Tsuru

IPC分类号： H04N5/235

CPC分类号： H04N9/643 ,  H04N5/20 ,  H04N5/58 ,  H04N9/68 ,  H04N21/4131 ,  H04N21/41407 ,  H04N21/42202 ,  H04N21/4318 ,  H04N21/44008

摘要： An image processing apparatus has an input portion for receiving video signals, an illumination sensor for detecting illumination of an environmental light, a corrector for correcting the video signals, and a controller for controlling the corrector to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals and with the detected illumination when any change occurs in the video signal. The apparatus further has a detector for detecting a change of the video signals in accordance with a mean value of luminance of the inputted video signals, a corrector for correcting the video signals, and a controller for controlling the correction portion to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals when the detector detects the change of the video signals.

摘要翻译： 图像处理装置具有用于接收视频信号的输入部分，用于检测环境光的照明的照明传感器，用于校正视频信号的校正器，以及用于控制校正器以根据亮度分布校正视频信号的控制器 或视频信号的色调或饱和度以及视频信号中发生任何变化时的检测到的照明。 该装置还具有用于根据输入的视频信号的亮度的平均值来检测视频信号的变化的检测器，用于校正视频信号的校正器，以及用于控制校正部分以校正视频信号的视频信号的控制器 根据检测器检测到视频信号的变化时的视频信号的亮度或色调或饱和度的分布。

公开(公告)号：US20100045694A1

公开(公告)日：2010-02-25

申请号：US12491334

申请日：2009-06-25

申请人： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

发明人： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

IPC分类号： G09G3/36 ,  G09G5/02

CPC分类号： G09G3/342 ,  G09G3/36 ,  G09G2320/0233 ,  G09G2320/062

摘要： In a local dimming technology for reducing power consumption of a display device using a backlight as in a liquid crystal display, the backlight is configured by a plurality of independently controllable light sources, an image is divided into areas of the same number as that of the controllable light sources and light emission intensity of the light source is calculated based on a feature value of each area. However, this technology has a problem that when a backlight luminance distribution within each area is not uniform, image quality is deteriorated or a power consumption reduction effect is lowered.In the present invention, the image is divided into areas of the number greater than that of the controllable light sources, and the light emission intensity of each light source is determined based on the feature values of a plurality of areas to reduce the above-described problem.

摘要翻译： 在用于降低液晶显示器中使用背光的显示装置的功耗的局部调光技术中，背光由多个可独立控制的光源构成，图像被划分为与 基于每个区域的特征值计算可控光源和光源的发光强度。 然而，该技术存在的问题是，当各区域内的背光亮度分布不均匀时，图像质量劣化或降低功耗降低效果。 在本发明中，将图像分割为比可控光源大的数量的区域，并且基于多个区域的特征值来确定每个光源的发光强度，以减少上述 问题。

公开(公告)号：US07333081B2

公开(公告)日：2008-02-19

申请号：US10893989

申请日：2004-07-20

申请人： Hiroshi Aoki ,  Ryo Hasegawa ,  Hirofumi Sakamoto ,  Haruki Takata ,  Yasutaka Tsuru

发明人： Hiroshi Aoki ,  Ryo Hasegawa ,  Hirofumi Sakamoto ,  Haruki Takata ,  Yasutaka Tsuru

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/2092 ,  G09G5/04 ,  G09G2360/16 ,  H04N9/3155

摘要： An object of the present invention is to provide an image display technology with which high contrast can be stably obtained.In order to achieve the above object, the present invention changes the gain of a digital luminance signal by feeding back information on maximum and average luminance levels of the luminance signal, adjusts image contrast, and in accordance with the average luminance level detected from the feedback system, controls the illuminance of the backlight applied to a display unit. The control increases the illuminance of the backlight when the detected average luminance level is higher than the upper-limit value of a previously set reference range, and reduces the illuminance when the detected average luminance level is lower than the lower-limit value of the reference range.

摘要翻译： 本发明的目的是提供可以稳定地获得高对比度的图像显示技术。 为了实现上述目的，本发明通过反馈关于亮度信号的最大和平均亮度水平的信息，调整图像对比度，并且根据从反馈检测到的平均亮度水平来改变数字亮度信号的增益 系统控制应用于显示单元的背光的照度。 当检测到的平均亮度水平高于预先设定的参考范围的上限值时，控制增加背光的照度，并且当检测到的平均亮度水平低于参考值的下限值时，降低照度 范围。