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公开(公告)号：US10527778B2
公开(公告)日：2020-01-07
申请号：US15759232
申请日：2016-09-08
发明人： Ryuzo Yuki , Katsutoshi Kikuchi , Hayato Nakamura , Makoto Yoshimura , Hiromi Enomoto , Mitsuhiro Murata , Hisashi Watanabe , Hirotoshi Yasunaga
摘要： A lighting device includes a light guide plate, a first light source, a second light source, and a case. The light guide plate includes plate surfaces and an outer peripheral surface. One of the plate surfaces is configured as a light exiting surface. Sections of the outer peripheral surface on opposite sides from each other relative to the center of the light exiting surface are configured as a first light entering surface and a second light entering surface, respectively. The first light source is disposed opposite the first light entering surface. The second light source is disposed opposite the second light entering surface. The case includes an annular wall portion surrounding an outer circumference of the light guide plate, the first light source, and the second light source. The annular wall portion includes light source non-disposing areas between the first light entering surface and the second light entering surface.
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公开(公告)号：US10466402B2
公开(公告)日：2019-11-05
申请号：US15312312
申请日：2015-05-15
IPC分类号： F21V8/00 , G02B6/00 , G02F1/13357 , G02F1/1335
摘要： An illumination device according to the present invention includes: a light source row in which a plurality of light sources are aligned in a row; a light guide plate that includes a plate-shaped main body with an end thereof facing the light source row, a light-receiving portion that is arranged on the end of the main body and into which light from the light sources enters, plate-shaped side extensions that are arranged on the sides of the main body and that extend outwards further than the light-receiving portion, and a light-exiting portion that is arranged on front surfaces of the main body and the side extensions and that allows light that enters via the light-receiving portion to exit; and a supply unit that supplies light to the side extensions.
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公开(公告)号：US10185172B2
公开(公告)日：2019-01-22
申请号：US15577032
申请日：2016-05-20
发明人： Shinya Kadowaki , Hidefumi Yoshida , Ryuzo Yuki
IPC分类号： G02F1/1335 , G02F1/133 , G02F1/1333 , G09F9/30 , G02F1/1339
摘要： A method of driving a display device including a display panel that includes a color filter board is provided. The color filter board includes a light blocking section formed in a grid and color sections that are formed in areas surrounded by a pattern of the light blocking section in different colors from area to area. The color sections form display pixels on a combination basis. The display panel includes a light blocking area in at least a section of an edge along an outline of the display panel. The method includes setting the color sections that do not form the display pixels among the color sections adjacent to the light blocking area in a plan view of the display panel constantly in the black state.
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公开(公告)号：US09933563B2
公开(公告)日：2018-04-03
申请号：US15311854
申请日：2015-05-15
IPC分类号： F21V8/00 , G02F1/1339 , B60K37/02 , B60K35/00
CPC分类号： G02B6/0088 , B60K35/00 , B60K37/02 , B60K2350/1056 , B60K2350/2039 , G02B6/0021 , G02F1/133308 , G02F1/1339 , G02F2001/133322 , G02F2201/56
摘要： A backlight unite 12 includes LEDs 17, an optical member 16, a positioning portion 23, and a rotation restricting portion 24. The optical member 16 includes at least a curved end surface 16C having a curved shape in a plan view included in a periphery of the optical member 16. The positioning portion 26 includes a positioning hole 25 that opens through a thickness direction of the optical member 16 and a positioning protrusion 26 that is inserted in the positioning hole 25 and is in contact with an inner wall of the positioning hole 25. The rotation restricting portion 24 includes an optical member recess 27 that is a portion of the periphery of the optical member 16 recessed along a circumferential direction and a contact portion 28 that is in contact with the optical member recess 27.
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公开(公告)号：US20150131309A1
公开(公告)日：2015-05-14
申请号：US14395895
申请日：2013-04-18
发明人： Ichiro Umekawa , Hirofumi Oosawa , Takeshi Ishida , Ryuzo Yuki , Masaki Kageyama , Shugo Yagi
IPC分类号： F21V8/00
CPC分类号： G02B6/0053 , G02B6/0011 , G02B6/0038 , G02B6/0073
摘要： Provided are an illumination device capable of improving the uniformity in brightness of the illumination light, and a display device using the same. An illumination device is provided with: a plurality of light sources arranged in a row in one direction; and a light guide plate which has, along a side edge face, a light receiving face facing the light source, guides light entering through the light receiving face, and outputs illumination light from a light emitting surface disposed on the front surface; the light guide plate having a plurality of prisms and a plurality of prisms provided in an indented manner on the front or rear surface and arranged in a row along the longitudinal direction of the light receiving face; the prisms being formed spanning between the light receiving face and the opposing face opposite the light receiving face; and the prisms being formed, between adjacent prisms, deeper than the prisms within a predetermined range in the vicinity of the light receiving face.
摘要翻译： 提供能够提高照明光的亮度的均匀性的照明装置和使用其的显示装置。 照明装置设置有：沿一个方向排列成一列的多个光源; 以及导光板，其沿着侧面设有面向所述光源的受光面，引导从所述受光面入射的光，并且从设置在所述前表面的发光面输出照明光; 所述导光板具有多个棱镜和多个棱镜，所述多个棱镜设置在所述前表面或后表面上并且沿着所述光接收面的纵向方向排成一列; 所述棱镜形成跨越在所述光接收面和与所述光接收面相对的所述相对面之间; 并且在相邻棱镜之间形成的棱镜比光接收面附近的预定范围内的棱镜深。
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公开(公告)号：US20150124188A1
公开(公告)日：2015-05-07
申请号：US14403884
申请日：2013-05-27
发明人： Shinya Kadowaki , Ryuzo Yuki
IPC分类号： G02F1/1335 , G02B5/09 , G02B5/02 , G02F1/1368
CPC分类号： G02F1/133514 , G02B5/0278 , G02B5/09 , G02B5/201 , G02F1/133528 , G02F1/133553 , G02F1/133617 , G02F1/1368 , G02F2001/133562
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US10705375B2
公开(公告)日：2020-07-07
申请号：US15770740
申请日：2016-10-21
IPC分类号： G02F1/13357 , F21V8/00
摘要： A backlight unit includes side emitting-type LEDs, a light guide plate, and an LED board. The light guide plate includes a light entering end surface, a light exiting plate surface, and an opposite plate surface. The LED board includes a plate surface attached to an edge of the opposite plate surface of the light guide plate. A gap is present between light emitting surfaces of the LEDs and the light entering end surface of the light guide plate. Each LED includes a light emitting surface having a dimension in the thickness direction of the light guide plate smaller than a dimension of the light entering end surface in the thickness direction. Each LED is disposed such that the center of the light emitting surface is opposed to the center of the light entering end surface.
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公开(公告)号：US10345507B2
公开(公告)日：2019-07-09
申请号：US15522457
申请日：2015-10-29
发明人： Ryuzo Yuki , Mitsuhiro Murata , Takeshi Ishida
IPC分类号： F21V7/04 , F21V8/00 , G02F1/1335
摘要： A lighting device includes a light source emitting light having an orientation distribution around an optical axis, a light guide plate having a hole and including a light entrance surface, a light exit surface, a non-light exit portion, and a light receiving surface, and a reflecting portion. The light entrance surface is opposite the light source such that the optical axis overlaps the hole. The non-light exit portion is the hole and surrounded by the light exit surface. The light receiving surface is next to the light entrance surface and near the non-light exit portion and receives maximum inclination light including light inclined at a largest angle with respect to the optical axis in a plan view. The reflecting portion is arranged opposite the light receiving surface and reflects the maximum inclination light from the light receiving surface toward the non-light exit portion.
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公开(公告)号：US11105972B2
公开(公告)日：2021-08-31
申请号：US16305418
申请日：2017-08-07
摘要： The light input efficiency of a light-emitting device into a circular disc-shaped or elliptical disc-shaped light guide plate is increased. A light-emitting device includes a first light-emitting unit (12a) that includes a plurality of light-emitting elements (L1 to L5) arranged curvilinearly, a second light-emitting unit (12b) that includes a plurality of light-emitting elements (L6 to L10) arranged curvilinearly, and a coupling portion (12c) that is disposed so as to coincide with a region (SA) sandwiched by the first and second light-emitting units and couples the first and second light-emitting units.
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公开(公告)号：US10670917B2
公开(公告)日：2020-06-02
申请号：US15765495
申请日：2016-09-28
IPC分类号： G02F1/13357 , F21V8/00 , G02F1/1335
摘要： A lighting device includes LEDs, a light guide plate, and a frame. The light guide plate includes a light guide plate hole portion passing through in a thickness direction, a light entering surface, and a light exiting surface. The frame surrounds the light guide plate. The frame includes an outer peripheral wall portion and an inner peripheral wall portion. The outer peripheral wall portion opposes an outer peripheral end face of the light guide plate. The inner peripheral wall portion inserted to the light guide plate hole portion opposes an inner peripheral end face of the light guide plate on an inner side of the light guide plate hole portion. The inner peripheral wall portion has a configuration in which the opposing surface has a lower light reflectivity than that of an opposing surface of the outer peripheral wall portion.
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