公开(公告)号：US07663713B2

公开(公告)日：2010-02-16

申请号：US11287294

申请日：2005-11-28

申请人： Ken Saito ,  Shigeo Shimano ,  Hiroshi Nakamoto ,  Hiroyuki Yoshida ,  Hirokazu Yabe ,  Toshitsugu Miyawaki ,  Akiyoshi Tobe

发明人： Ken Saito ,  Shigeo Shimano ,  Hiroshi Nakamoto ,  Hiroyuki Yoshida ,  Hirokazu Yabe ,  Toshitsugu Miyawaki ,  Akiyoshi Tobe

IPC分类号： G02F1/335 ,  F21V7/04 ,  G02B6/10

CPC分类号： G02B6/0038 ,  G02B6/0016 ,  G02B6/0018 ,  G02B6/0028 ,  G02B6/0068 ,  Y10S385/901

摘要： A liquid crystal display device includes a liquid crystal panel and an illumination device. The illumination device has a light guide plate and at least one spot light source on at least one side surface of the light guide plate. The light guide plate includes a large number of upper-surface arcuate cross-sectional grooves in a direction orthogonal to the one side surface on a surface thereof which faces the liquid crystal panel, and a large number of light-incident-surface arcuate cross-sectional grooves are formed in a thickness direction of the light guide plate on at least a portion of the one side surface which faces a position at which the spot light source is arranged. A relationship is provided between a contact angle Oa of the upper-surface arcuate cross-sectional grooves and a contact angle Ea of the light-incident-surface arcuate cross-sectional grooves.

摘要翻译： 液晶显示装置包括液晶面板和照明装置。 照明装置在导光板的至少一个侧面具有导光板和至少一个点光源。 导光板在与液晶面板的面对面的一个侧面正交的方向上具有大量上表面的弧形截面槽，并且具有大量的光入射面弧形横截面， 在与设置有点光源的位置对置的一个侧面的至少一部分上，在导光板的厚度方向上形成截面槽。 在上表面弧形横截面槽的接触角Oa和光入射面弧形横截面槽的接触角Ea之间提供关系。

公开(公告)号：US06530671B2

公开(公告)日：2003-03-11

申请号：US10028824

申请日：2001-12-28

申请人： Hitoshi Taniguchi ,  Yasuo Hira ,  Yuji Mori ,  Hisao Hirayama ,  Toshitsugu Miyawaki

发明人： Hitoshi Taniguchi ,  Yasuo Hira ,  Yuji Mori ,  Hisao Hirayama ,  Toshitsugu Miyawaki

IPC分类号： F21V704

CPC分类号： G02B6/0036 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0061

摘要： A liquid crystal display having a liquid crystal display panel having a plurality of liquid crystal cells, and a back light that irradiates the liquid crystal display panel with irradiation light. The back light includes a light source, and a light guide plate having one side arranged adjacent the light source and having a planar surface with a plurality of small concaves. The planar surface is almost parallel to a liquid crystal cell face, and a plane shape of the small concaves is almost rectangular.

公开(公告)号：US06985131B2

公开(公告)日：2006-01-10

申请号：US09910862

申请日：2001-07-24

申请人： Tomoaki Kawada ,  Akio Tezuka ,  Hisao Hirayama ,  Toshitsugu Miyawaki ,  Masataka Natori

发明人： Tomoaki Kawada ,  Akio Tezuka ,  Hisao Hirayama ,  Toshitsugu Miyawaki ,  Masataka Natori

IPC分类号： G09G3/36

CPC分类号： G02B6/0036 ,  G02B6/0061 ,  G02B6/0088 ,  G02F1/133615

摘要： In a liquid crystal display device having the so-called side-edge type backlight system which comprises: a liquid crystal display panel; a light guide plate being disposed opposite to a main surface of the liquid crystal panel; and a linear lamp being disposed along one of sides of the light guide plate, the present invention provides a plurality of grooves at a corner area of an edge of the light guide plate along which the linear lamp is disposed so that the plurality of grooves are extended in a direction slanted to the edge of the light guide plate. In accordance with this structural feature, the present invention enables a high quality image display performance of the liquid crystal display panel by suppressing the display irregularity appearing therein effectively.

公开(公告)号：US06522373B1

公开(公告)日：2003-02-18

申请号：US09558035

申请日：2000-04-26

申请人： Yasuo Hira ,  Hitoshi Taniguchi ,  Toshitsugu Miyawaki ,  Shuji Yano

发明人： Yasuo Hira ,  Hitoshi Taniguchi ,  Toshitsugu Miyawaki ,  Shuji Yano

IPC分类号： G02F11335

CPC分类号： G02B6/0036 ,  G02B6/0046 ,  G02B6/0061 ,  G02B6/0065 ,  G02F2201/58 ,  G02F2203/64

摘要： A light guide plate which can achieve improvement of back-lighting or front-lighting luminance without increase of luminance of a light source, and a liquid crystal display device using such a light guide plate. A large number of concave small dots are formed in a surface of the light guide plate opposite to a light emitting surface of the light guide plate which emits light to a liquid crystal cell array so that light incident on the light guide plate from the light source is reflected at the concave small dots in the direction toward the light emitting surface of the light guide plate. Each of the concave small dots is shaped like a triangle with a sectional inclination angle of from 50 to 60° in sectional view and shaped like an approximate rectangle or square in plan view in the direction perpendicular to a surface of the light guide plate and disposed so that a long side of the approximate rectangle or a side of the approximate square is approximately parallel with the longitudinal direction of the light source.

摘要翻译： 可以在不增加光源的亮度的情况下实现背光或前照亮度的提高的导光板，以及使用这种导光板的液晶显示装置。 在导光板的与发光到液晶单元阵列的导光板的发光面相对的表面上形成有大量的凹小点，使得从光源入射到导光板上的光 在朝向导光板的发光面的方向上的凹形小点处反射。 每个凹形小点在剖面图中形成为截面倾斜角为50°至60°的三角形，并且在垂直于导光板的表面的方向上在平面图中形成为近似矩形或正方形， 使得近似矩形的长边或近似正方形的一侧近似平行于光源的纵向方向。

公开(公告)号：US06334689B1

公开(公告)日：2002-01-01

申请号：US09257062

申请日：1999-02-25

申请人： Hitoshi Taniguchi ,  Yasuo Hira ,  Yuji Mori ,  Hisao Hirayama ,  Toshitsugu Miyawaki

发明人： Hitoshi Taniguchi ,  Yasuo Hira ,  Yuji Mori ,  Hisao Hirayama ,  Toshitsugu Miyawaki

IPC分类号： F21V704

CPC分类号： G02B6/0036 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0061

摘要： A liquid crystal display includes a liquid crystal display panel having a plurality of liquid crystal cells and aback light that irradiates the liquid crystal display panel with irradiation light. The back light includes a light source and a light guide plate having one side arranged adjacent the light source and having a planar surface with a plurality of small concaves. The planar surface is substantially parallel to a liquid crystal cell face and a plane shape of the small concaves is substantially rectangular.

摘要翻译： 液晶显示器包括具有多个液晶单元的液晶显示面板和用照射光照射液晶显示面板的大光。 背光包括光源和导光板，该导光板具有邻近光源设置的一侧，并且具有带有多个小凹面的平坦表面。 平面表面基本上平行于液晶单元面，而小凹面的平面形状基本上是矩形的。

公开(公告)号：US20060114372A1

公开(公告)日：2006-06-01

申请号：US11287294

申请日：2005-11-28

申请人： Ken Saito ,  Shigeo Shimano ,  Hiroshi Nakamoto ,  Hiroyuki Yoshida ,  Hirokazu Yabe ,  Toshitsugu Miyawaki ,  Akiyoshi Tobe

发明人： Ken Saito ,  Shigeo Shimano ,  Hiroshi Nakamoto ,  Hiroyuki Yoshida ,  Hirokazu Yabe ,  Toshitsugu Miyawaki ,  Akiyoshi Tobe

IPC分类号： G02F1/1335

CPC分类号： G02B6/0038 ,  G02B6/0016 ,  G02B6/0018 ,  G02B6/0028 ,  G02B6/0068 ,  Y10S385/901

摘要： A liquid crystal display device includes a liquid crystal panel and an illumination device. The illumination device has a light guide plate and at least one spot light source on at least one side surface of the light guide plate. The light guide plate includes a large number of upper-surface arcuate cross-sectional grooves in a direction orthogonal to the one side surface on a surface thereof which faces the liquid crystal panel, and a large number of light-incident-surface arcuate cross-sectional grooves are formed in a thickness direction of the light guide plate on at least a portion of the one side surface which faces a position at which the spot light source is arranged. A relationship is provided between a contact angle Oa of the upper-surface arcuate cross-sectional grooves and a contact angle Ea of the light-incident-surface arcuate cross-sectional grooves.

摘要翻译： 液晶显示装置包括液晶面板和照明装置。 照明装置在导光板的至少一个侧面具有导光板和至少一个点光源。 导光板在与液晶面板的面对面的一个侧面正交的方向上具有大量上表面的弧形截面槽，并且具有大量的光入射面弧形横截面， 在与设置有点光源的位置对置的一个侧面的至少一部分上，在导光板的厚度方向上形成截面槽。 在上表面弧形横截面槽的接触角Oa和光入射面弧形横截面槽的接触角Ea之间提供关系。