公开(公告)号：US09581860B2

公开(公告)日：2017-02-28

申请号：US14787398

申请日：2014-04-30

Applicant: Sharp Kabushiki Kaisha

Inventor： Hirotoshi Yasunaga ,  Ryuzo Yuki ,  Takeshi Ishida ,  Shinya Kadowaki

IPC: F21V9/14 ,  G02F1/1335 ,  H05B33/14 ,  G02B5/30 ,  H01L33/50

CPC classification number: G02F1/133617 ,  G02B5/3016 ,  G02F1/13362 ,  H01L33/501 ,  H05B33/14

Abstract: An illumination device includes a light source that emits primary light and a wavelength conversion element that converts at least a portion of the primary light from the light source. The wavelength conversion element includes a phosphor layer having phosphors that absorb at least a portion of the primary light from the light source to emit secondary light, which is polarized, and polymers having birefringence. The phosphors have an anisotropic structure and are aligned generally along a first direction, and the polymers have polymer molecules that are aligned generally along the first direction. An angle formed by a direction of a transition dipole moment of each of the phosphors to a delayed phase axis of each of the polymer molecules with respect to the secondary light emitted from the phosphors towards the polymer molecules is 0° to 45°.

Abstract translation: 照明装置包括发射一次光的光源和转换来自光源的初级光的至少一部分的波长转换元件。 波长转换元件包括具有荧光体的荧光体层，该荧光体吸收来自光源的至少一部分初级光以发射被偏振的二次光，以及具有双折射的聚合物。 荧光体具有各向异性结构，并且大致沿着第一方向排列，并且聚合物具有大致沿着第一方向排列的聚合物分子。 每个荧光体的过渡偶极矩的方向与每个聚合物分子相对于从磷光体向聚合物分子发射的次级光的延迟相位所形成的角度为0°至45°。

公开(公告)号：US09423555B2

公开(公告)日：2016-08-23

申请号：US14429864

申请日：2013-09-25

Applicant: Sharp Kabushiki Kaisha

Inventor： Hisashi Watanabe ,  Ryuzo Yuki ,  Takeshi Ishida

IPC: F21V8/00 ,  G02F1/1333 ,  G02F1/1335

CPC classification number: G02B6/0088 ,  G02B6/005 ,  G02F1/133308 ,  G02F1/133615 ,  G02F2001/133314

Abstract: In a backlight (20) including a frame (22) having an opening (22a), and a light guide plate assembly (23) disposed inside the frame (22) and having a light guide plate (24) and a light source (25), the backlight being configured to emit illumination light through the opening (22a), the frame (22) is formed by bending a metal plate and includes a bottom surface portion (22b) facing a rear surface of the light guide plate (24), a peripheral surface portion (22c) standing on a peripheral edge of the bottom surface portion (22b), and an upper surface portion (22d) bent from an upper end of the peripheral surface portion (22c) to form a peripheral edge of the opening, and an outer shape of the light guide plate assembly (23) is smaller than the opening (22a).

Abstract translation: 在包括具有开口（22a）的框架（22）和布置在框架（22）内部并具有导光板（24）和光源（25）的导光板组件（23）的背光源（20） ），所述背光被配置为通过所述开口（22a）发射照明光，所述框架（22）通过弯曲金属板形成并且包括面向所述导光板（24）的后表面的底面部分（22b） ，位于所述底面部（22b）的周缘部的周面部（22c）和从所述周面部（22c）的上端弯曲的上表面部（22d），形成所述外周面 开口和导光板组件（23）的外形小于开口（22a）。

公开(公告)号：US09285629B2

公开(公告)日：2016-03-15

申请号：US14403884

申请日：2013-05-27

Applicant: Sharp Kabushiki Kaisha

Inventor： Shinya Kadowaki ,  Ryuzo Yuki

IPC: G02F1/1335 ,  G02B5/09 ,  G02F1/1368 ,  G02B5/02 ,  G02B5/20

CPC classification number: G02F1/133514 ,  G02B5/0278 ,  G02B5/09 ,  G02B5/201 ,  G02F1/133528 ,  G02F1/133553 ,  G02F1/133617 ,  G02F1/1368 ,  G02F2001/133562

Abstract: A color conversion substrate and liquid crystal display device of the present invention simplify the manufacturing process thereof and reduce deviations in intensity distribution of emitted light. The color conversion substrate includes a transparent substrate having a first main surface, a phosphor layer having a plurality of phosphors arranged along the first main surface and a plurality of transparent first boundary parts formed so as to surround the respective phosphors, and a plurality of first reflective parts formed on the outer peripheral surface of the respective plurality of first boundary parts. The portions of the first boundary parts where the respective first reflective parts are formed are curved, and the curvature thereof is 0.50/d1 to 0.83/d1, where d1 is the thickness of the respective first boundary parts.

Abstract translation: 本发明的颜色转换基板和液晶显示装置简化了其制造工艺并减少了发射光的强度分布的偏差。 颜色转换基板包括具有第一主表面的透明基板，具有沿着第一主表面布置的多个荧光体的荧光体层和形成为围绕各个荧光体的多个透明第一边界部分，以及多个第一 反射部件形成在多个第一边界部分的外周面上。 形成各个第一反射部分的第一边界部分的部分是弯曲的，其曲率为0.50 / d1至0.83 / d1，其中d1是各个第一边界部分的厚度。

公开(公告)号：US20150168631A1

公开(公告)日：2015-06-18

申请号：US14414511

申请日：2013-07-23

Applicant: Sharp Kabushiki Kaisha

Inventor： Ichiro Umekawa ,  Hirofumi Oosawa ,  Takeshi Ishida ,  Ryuzo Yuki ,  Masaki Kageyama ,  Shugo Yagi

IPC: F21V8/00

CPC classification number: G02B6/0038 ,  G02B6/0016 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073

Abstract: An illumination device (10) is provided with the following: light sources (11); a light-guide member (12 (13)) that includes a light entry region (Is) and a light exit region (Os) which emits planar light; light entry portions (13a) that are formed in the light entry region (Is) and that oppose the light sources (11); and bright line suppression portions (20) that are formed in the areas between the light entry portions (13a) at the front side of the light entry region (Is), and that include bright line suppression prisms (21) which have a shape that changes the angle of the light emitted in a direction spreading out from the light sources (11) to a direction closer to the optical axes.

Abstract translation: 照明装置（10）具有：光源（11）; 包括光入射区域（Is）的导光构件（12（13））和发射平面光的光出射区域（Os）; 形成在光入射区域（Is）中并且与光源（11）相对的光入口部分（13a）; 以及形成在光入射区域（Is）的前侧的光入射部（13a）之间的区域中的亮线抑制部（20），其包括具有形状的亮线抑制棱镜（21） 将从光源（11）扩展的方向发射的光的角度改变为更靠近光轴的方向。

公开(公告)号：US20150131317A1

公开(公告)日：2015-05-14

申请号：US14402879

申请日：2013-05-24

Applicant: Sharp Kabushiki Kaisha

Inventor： Ryuzo Yuki ,  Takeshi Ishida

IPC: F21V8/00

CPC classification number: G02B6/002 ,  G02B6/0036 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073

Abstract: The present invention aims at providing an illumination device and a display device that can suppress uneven brightness while improving light use efficiency and brightness. The illumination device includes a plurality of light sources arranged next to each other, a light guide member that guides light from the light sources, and protrusions that protrude towards the respective light sources from an end face of the light guide member. The protrusions each have side faces formed such that light emitted so as to spread in the arrangement direction of the light sources exits the light guide member and then re-enters from the end face thereof.

Abstract translation: 本发明旨在提供一种能够在提高光的使用效率和亮度的同时抑制不均匀亮度的照明装置和显示装置。 照明装置包括彼此相邻布置的多个光源，引导来自光源的光的导光构件和从导光构件的端面朝向各个光源突出的突起。 这些突起各自具有形成为使得沿着光源的排列方向扩散的光从导光部件射出，然后从其端面重新进入的侧面。