Liquid crystal display device
    1.
    发明授权
    Liquid crystal display device 有权
    液晶显示装置

    公开(公告)号:US08804071B2

    公开(公告)日:2014-08-12

    申请号:US13289366

    申请日:2011-11-04

    IPC分类号: G02F1/1335

    摘要: A light source section provided in a backlight unit has a smaller width in a direction perpendicular to a length direction of the light source section than a width in the same direction of the liquid crystal panel. A plurality of LED modules are arranged along the length direction of the light source section. The LED modules are respectively assigned to areas of the liquid crystal panel, which are extended in the width direction of the light source section. Lenses are respectively disposed over the LED modules and expand light toward the areas. A control device controls each of the plurality of light sources separately or each of groups into which the plurality of light sources are divided, separately. Accordingly, it is possible to improve a contrast of a display screen, while reducing the number of light sources.

    摘要翻译: 设在背光单元中的光源部在垂直于光源部的长度方向的方向上的宽度比液晶面板的相同方向的宽度小。 沿着光源部的长度方向配置多个LED模块。 LED模块分别分配给在光源部的宽度方向上延伸的液晶面板的区域。 镜头分别设置在LED模块上,并朝向该区域展开光。 控制装置分别控制多个光源中的每一个或多个光源被分割成的组中的每一个。 因此,可以在减少光源数量的同时,提高显示画面的对比度。

    Display apparatus
    3.
    发明申请
    Display apparatus 有权
    显示装置

    公开(公告)号:US20050104812A1

    公开(公告)日:2005-05-19

    申请号:US10983265

    申请日:2004-11-08

    申请人: Yoshinori Ohshima

    发明人: Yoshinori Ohshima

    摘要: A display apparatus divides each frame period of an input image signal into a plurality of subframes and selects the subframes according to a gray-scale level of the input signal, to display a gray-scale image. The display apparatus alternately employs two sets of tables having different gray-scale-level input/output characteristics, to move locations to cause false contours frame by frame, thereby minimizing false contours.

    摘要翻译: 显示装置将输入图像信号的每个帧周期分割为多个子帧,并根据输入信号的灰度级别选择子帧,以显示灰度图像。 显示装置交替使用具有不同灰度级输入/输出特性的两组表,以移动位置逐帧引起假轮廓,从而最小化假轮廓。

    Liquid crystal display device
    4.
    发明授权
    Liquid crystal display device 有权
    液晶显示装置

    公开(公告)号:US09081225B2

    公开(公告)日:2015-07-14

    申请号:US13590817

    申请日:2012-08-21

    申请人: Yoshinori Ohshima

    发明人: Yoshinori Ohshima

    IPC分类号: G02F1/1335 G02F1/1333

    摘要: Provided is a liquid crystal display device which is capable of eliminating a non-display region at a peripheral edge of a display screen, and displaying an image on the entire surface thereof. A backlight unit (22) emits parallel rays. The liquid crystal panel (24) transmits the parallel ray as a unit parallel ray in pixel unit, thereby forming an original image. An image enlarging panel (26) is an optical element having a flat-plate shape. The image enlarging panel (26) causes the unit parallel ray of each pixel to obliquely travel by refraction to shift a position of the unit parallel ray in a flat-plate plane, to thereby forms a display image enlarged the original image. A viewing angle enlarging panel (28) expands an angular distribution of the entering unit parallel ray from the image enlarging panel (26), thereby enlarging a viewing angle of the display image.

    摘要翻译: 提供一种液晶显示装置,其能够消除显示屏幕的周边边缘处的非显示区域,并且在其整个表面上显示图像。 背光单元(22)发射平行光线。 液晶面板(24)以像素为单位将平行光线作为单位平行光线发射,由此形成原始图像。 图像放大面板(26)是具有平板形状的光学元件。 图像放大面板(26)使得每个像素的单位平行光线通过折射倾斜地行进,以使平面平面中的单位平行光线的位置偏移,从而形成放大原始图像的显示图像。 视角扩大面板(28)从图像放大面板(26)扩大进入单位平行光线的角度分布,从而扩大显示图像的视角。

    Display apparatus
    5.
    发明授权
    Display apparatus 有权
    显示装置

    公开(公告)号:US07391391B2

    公开(公告)日:2008-06-24

    申请号:US10983265

    申请日:2004-11-08

    申请人: Yoshinori Ohshima

    发明人: Yoshinori Ohshima

    IPC分类号: G09G3/28 G09G5/10

    摘要: A display apparatus divides each frame period of an input image signal into a plurality of subframes and selects the subframes according to a gray-scale level of the input signal, to display a gray-scale image. The display apparatus alternately employs two sets of tables having different gray-scale-level input/output characteristics, to move locations to cause false contours frame by frame, thereby minimizing false contours.

    摘要翻译: 显示装置将输入图像信号的每个帧周期分割为多个子帧,并根据输入信号的灰度级别选择子帧,以显示灰度图像。 显示装置交替使用具有不同灰度级输入/输出特性的两组表,以移动位置逐帧引起假轮廓,从而最小化假轮廓。

    Planar light source device, liquid crystal display device, and television set
    7.
    发明授权
    Planar light source device, liquid crystal display device, and television set 有权
    平面光源装置,液晶显示装置和电视机

    公开(公告)号:US08727598B2

    公开(公告)日:2014-05-20

    申请号:US13408670

    申请日:2012-02-29

    申请人: Yoshinori Ohshima

    发明人: Yoshinori Ohshima

    IPC分类号: F21V7/04

    摘要: In a direct type backlight device of a liquid crystal display device, a light guide plate is used obtain a uniform in-plane distribution of light emission intensity. A reflective sheet (62) having an opening portion is laminated on a front surface of an LED substrate (60), and an LED element (74) is accommodated inside the opening portion. A light guide plate (64) is stacked on the reflective sheet (62). On a front surface of the light guide plate (64), a white reflective film (90) is formed in a non-total reflection region, which is positioned to oppose the LED element (74) and in which an incident angle of light emitted from the LED element (74) to the front surface is smaller than a critical angle. On a rear surface of the light guide plate (64), a pattern made of a white reflective film (92) is formed.

    摘要翻译: 在液晶显示装置的直接型背光装置中,使用导光板获得均匀的发光强度的面内分布。 具有开口部分的反射片(62)层叠在LED基板(60)的前表面上,并且LED元件(74)容纳在开口部内。 导光板(64)堆叠在反射片(62)上。 在导光板(64)的前表面上形成白色反射膜(90),该非全反射区域被定位成与LED元件(74)相对,并且其中发射的光的入射角 从LED元件(74)到前表面的距离小于临界角。 在导光板(64)的后表面上形成由白色反射膜(92)构成的图案。

    Liquid crystal display device and image display method thereof
    9.
    发明授权
    Liquid crystal display device and image display method thereof 有权
    液晶显示装置及其图像显示方法

    公开(公告)号:US08139022B2

    公开(公告)日:2012-03-20

    申请号:US12206010

    申请日:2008-09-08

    申请人: Yoshinori Ohshima

    发明人: Yoshinori Ohshima

    IPC分类号: G09G3/36

    摘要: High quality images on liquid crystal panel can be obtained alleviating variations of the brightness and color among regions, in which backlight is divided when emission luminance of the backlight is controlled in each region based on image signal. A backlight device is divided into multiple regions, and has a configuration in which light emitted from a light source of each of the regions is allowed to leak to other regions. A maximum gradation detector detects a maximum gradation of a regional image signal displayed on each of the regions of the liquid crystal panel. An image gain calculator obtains a gain to be multiplied to each regional image signal by using luminance bitmap held by luminance bitmap memory. An emission luminance calculator obtains an emission luminance of light to be emitted by each light source.

    摘要翻译: 可以获得液晶面板上的高质量图像,以减轻区域之间的亮度和颜色的变化,其中基于图像信号在每个区域中控制背光的发光亮度时背光被分割。 背光装置被分割为多个区域,并且具有从每个区域的光源发射的光被允许泄漏到其他区域的构造。 最大灰度检测器检测在液晶面板的每个区域上显示的区域图像信号的最大灰度。 图像增益计算器通过使用由亮度位图存储器保持的亮度位图来获得要乘以每个区域图像信号的增益。 发光亮度计算器获得由每个光源发射的光的发光亮度。

    PLANAR LIGHT SOURCE DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND TELEVISION SET
    10.
    发明申请
    PLANAR LIGHT SOURCE DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND TELEVISION SET 有权
    平面光源装置,液晶显示装置和电视机

    公开(公告)号:US20120224111A1

    公开(公告)日:2012-09-06

    申请号:US13408670

    申请日:2012-02-29

    申请人: Yoshinori Ohshima

    发明人: Yoshinori Ohshima

    IPC分类号: H04N3/10 G02F1/13357 F21V8/00

    摘要: In a direct type backlight device of a liquid crystal display device, a light guide plate is used obtain a uniform in-plane distribution of light emission intensity. A reflective sheet (62) having an opening portion is laminated on a front surface of an LED substrate (60), and an LED element (74) is accommodated inside the opening portion. A light guide plate (64) is stacked on the reflective sheet (62). On a front surface of the light guide plate (64), a white reflective film (90) is formed in a non-total reflection region, which is positioned to oppose the LED element (74) and in which an incident angle of light emitted from the LED element (74) to the front surface is smaller than a critical angle. On a rear surface of the light guide plate (64), a pattern made of a white reflective film (92) is formed.

    摘要翻译: 在液晶显示装置的直接型背光装置中,使用导光板获得均匀的发光强度的面内分布。 具有开口部分的反射片(62)层叠在LED基板(60)的前表面上,并且LED元件(74)容纳在开口部内。 导光板(64)堆叠在反射片(62)上。 在导光板(64)的前表面上形成白色反射膜(90),该非全反射区域被定位成与LED元件(74)相对,并且其中发射的光的入射角 从LED元件(74)到前表面的距离小于临界角。 在导光板(64)的后表面上形成由白色反射膜(92)构成的图案。