Liquid crystal display device and lightguide having local-area and wide-area line-shaped protrusions on the lightguide emission face
    13.
    发明授权
    Liquid crystal display device and lightguide having local-area and wide-area line-shaped protrusions on the lightguide emission face 有权
    液晶显示装置和导光板在光导发射面上具有局部和广域线形突起

    公开(公告)号:US08582056B2

    公开(公告)日:2013-11-12

    申请号:US13297293

    申请日:2011-11-16

    IPC分类号: G02F1/1335

    摘要: A lightguide to be used in a liquid crystal display device includes a light exit surface, a reflection surface opposed to the light exit surface, and a light entrance surface, which is one side surface. In a region of the light exit surface or the reflection surface, which is on a front side of an intermediate portion between two light sources when viewed from the light entrance surface, a plurality of local-area line-shaped protrusions are arranged, which are extending in a first direction. Each of the local-area line-shaped protrusions reflects the entered light so that a component of the entered light which is orthogonal to the first direction is weakened. A length of a local-area line-shaped protrusion farthest from the two adjacent light sources, is larger than a length of a local-area line-shaped protrusion closest to any one of the two adjacent light sources.

    摘要翻译: 在液晶显示装置中使用的导光体包括光出射面,与光射出面相对的反射面,以及作为一个侧面的光入射面。 在从光入射面观察的两个光源之间的中间部的前侧的光出射面或反射面的区域中,配置有多个局部线状突起, 沿第一方向延伸。 局部区域线状突起中的每一个反映入射光,使得与第一方向正交的入射光的分量变弱。 距离两个相邻光源最远的局部线状突起的长度大于最靠近两个相邻光源中的任一个的局域线状突起的长度。

    Liquid crystal display device
    14.
    发明授权

    公开(公告)号:US08523421B2

    公开(公告)日:2013-09-03

    申请号:US12292268

    申请日:2008-11-14

    IPC分类号: F21V21/04

    摘要: To prevent, in a backlight where light emitting diodes are arranged on a side surface of a light guide plate, light leakage from a reflection sheet and reduce non-uniformity of emission light from the backlight. In a liquid crystal display device that includes a backlight that irradiates a liquid crystal panel with light, LEDs are disposed as light emitting elements on a light guide plate that is disposed in the backlight, a reflection sheet that comprises a multilayer film is disposed on a bottom surface of the light guide plate, projections are disposed by sandblasting on the bottom surface of the light guide plate in the vicinity of the LEDs, and tight adhesion between the reflection sheet and the light guide plate is prevented. In the vicinity of the LEDs, in order to counter light non-uniformity, reflecting grooves are not disposed and it is a mirror surface, but tight adhesion can be prevented by disposing the projections.

    Liquid crystal display device
    16.
    发明申请
    Liquid crystal display device 有权
    液晶显示装置

    公开(公告)号:US20090135627A1

    公开(公告)日:2009-05-28

    申请号:US12292268

    申请日:2008-11-14

    IPC分类号: F21V13/04 F21V7/22 F21V8/00

    摘要: To prevent, in a backlight where light emitting diodes are arranged on a side surface of a light guide plate, light leakage from a reflection sheet and reduce non-uniformity of emission light from the backlight. In a liquid crystal display device that includes a backlight that irradiates a liquid crystal panel with light, LEDs are disposed as light emitting elements on a light guide plate that is disposed in the backlight, a reflection sheet that comprises a multilayer film is disposed on a bottom surface of the light guide plate, projections are disposed by sandblasting on the bottom surface of the light guide plate in the vicinity of the LEDs, and tight adhesion between the reflection sheet and the light guide plate is prevented. In the vicinity of the LEDs, in order to counter light non-uniformity, reflecting grooves are not disposed and it is a mirror surface, but tight adhesion can be prevented by disposing the projections.

    摘要翻译: 为了防止在发光二极管布置在导光板的侧表面上的背光中,来自反射片的光泄漏并且降低来自背光的发射光的不均匀性。 在包括用光照射液晶面板的背光源的液晶显示装置中,将LED作为发光元件设置在配置在背光源中的导光板上,将包含多层膜的反射片设置在 在导光板的底面,通过喷射在LED的附近的导光板的底面上设置突起,防止了反射片与导光板之间的紧密附着。 在LED的附近,为了防止光的不均匀性,不设置反射槽并且是镜面,但是通过设置突起可以防止紧密的粘合。

    Lighting device, display device and liquid crystal display device
    18.
    发明授权
    Lighting device, display device and liquid crystal display device 有权
    照明装置,显示装置和液晶显示装置

    公开(公告)号:US08882324B2

    公开(公告)日:2014-11-11

    申请号:US13523287

    申请日:2012-06-14

    摘要: A lighting device includes a light source 30, a light guide 20 provided adjacent to the light source 30 and including a light source light incident surface 21 on which light emitted by the light source 30 enters and a planar light emission surface 22 from which planar light is emitted, and an optical sheet 50 including a planar light incident surface 53 on which the planar light enters, and configured to change a traveling direction of the planar light because a light emission side of the optical sheet 50 has a shape in which plural columnar prisms 51 extending in parallel to the light source light incident surface 21 are arranged side by side. In each of the prisms 51, a distal surface has at least different two kinds of inclination angles.

    摘要翻译: 照明装置包括光源30,与光源30相邻设置的光导20,并且包括光源30发射的光入射的光源光入射面21和平面光出射面22,平面光 以及包括平面光入射面53的光学片50,由于光学片50的发光侧具有多个柱状的形状,所述光学片50包括平面光入射的平面光入射面53,并且被配置为改变平面光的行进方向 平行于光源光入射面21延伸的棱镜51并列配置。 在每个棱镜51中,远端表面具有至少不同的两种倾斜角。

    Liquid crystal display device using light guide plate
    19.
    发明授权
    Liquid crystal display device using light guide plate 有权
    液晶显示装置采用导光板

    公开(公告)号:US08514348B2

    公开(公告)日:2013-08-20

    申请号:US13038407

    申请日:2011-03-02

    IPC分类号: G02F1/1335 F21V7/04

    CPC分类号: G02F1/1335

    摘要: A light guide plate is for reflecting incident light from an end surface thereof in an inside to obtain surface emission from a front surface thereof. The light guide plate includes protrusions and recesses formed on one of the front surface and a rear surface on an opposite side of the front surface. The protrusions and recesses are formed of a shape in which first mountain-range shapes each including a first ridge continuing along a first direction, which is a direction toward the inside from the end surface, and second mountain-range shapes each including a second ridge continuing along a second direction intersecting with the first direction are combined. Each first mountain-range shape includes a pair of first side surfaces on both sides of the first ridge. Each second mountain-range shape includes a pair of second side surfaces on both sides of the second ridge.

    摘要翻译: 导光板用于将来自其内表面的入射光反射,以从其前表面获得表面发射。 导光板包括形成在前表面和前表面的相对侧上的前表面和后表面之一上的突起和凹陷。 所述突起和凹部由以下形状形成:第一山区形状,其包括沿着从端面向内侧的方向的第一方向连续的第一脊,以及包括第二脊 沿着与第一方向相交的第二方向连续。 每个第一山脉形状包括在第一脊的两侧上的一对第一侧表面。 每个第二山脉形状包括在第二脊的两侧上的一对第二侧表面。

    Liquid crystal display device
    20.
    发明授权
    Liquid crystal display device 有权
    液晶显示装置

    公开(公告)号:US07999887B2

    公开(公告)日:2011-08-16

    申请号:US12877658

    申请日:2010-09-08

    IPC分类号: G02F1/13357 F21V7/04

    摘要: A liquid crystal display device includes a display panel, a backlight which radiates light to the display panel, a light emitting element which is mounted on the backlight, and a light guide plate on which light from the light emitting element is incident. The light guide plate has an upper surface and a bottom surface. The bottom surface has grooves formed therein delimited by at least one surface which extends at a slant with respect to the bottom surface. A reflection sheet is provided which reflects the light radiated from the bottom surface. The grooves are formed to produce a first light which is reflected on the grooves and a second light which is radiated from the grooves and is reflected on the reflection sheet, and an asymmetric prism sheet is arranged on the light guide plate.

    摘要翻译: 液晶显示装置包括显示面板,向显示面板照射光的背光,安装在背光源上的发光元件和来自发光元件的光入射的导光板。 导光板具有上表面和底面。 底面具有形成在其中的凹槽,该凹槽由至少一个相对于底面以倾斜方向延伸的表面限定。 提供反射从底面辐射的光的反射片。 凹槽形成为产生在凹槽上反射的第一光和从凹槽辐射并在反射片上反射的第二光,并且不对称棱镜片布置在导光板上。