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1. 发明授权

US10317610B2 Illumination device and display device 有权
公开(公告)号：US10317610B2
公开(公告)日：2019-06-11
申请号：US15105537
申请日：2014-12-12
申请人： Sharp Kabushiki Kaisha
发明人： Yoshinobu Hirayama , Shugo Yagi , Toru Inata
IPC分类号： F21V8/00 , G02F1/1335 , G02F1/1333 , G02B27/22
摘要： A backlight device is provided with: LEDs; a light guide plate having a light-receiving face, a light-exiting surface, and an opposite plate surface; a prism sheet that is disposed on the light-exiting side of the light guide plate and that includes a plurality of light-exiting side prisms aligned along a second direction; a light-exiting surface-side prism portion that is disposed in the light-exiting surface of the light guide plate and that includes a plurality of light-exiting surface-side prisms aligned along the second direction; a light emission reflection portion that is disposed in the opposite plate surface of the light guide plate and that includes a plurality of reflection units aligned along a first direction at an interval; and an opposite plate surface-side prism portion that is disposed in the opposite plate surface of the light guide plate and that includes a plurality of opposite plate surface-side prisms aligned along the second direction.

2. 发明申请

US20150138487A1 OPTICAL MEMBER, ILLUMINATION DEVICE, AND DISPLAY DEVICE 审中-公开
标题翻译：光学部件，照明装置和显示装置
公开(公告)号：US20150138487A1
公开(公告)日：2015-05-21
申请号：US14413669
申请日：2013-07-05
申请人： Sharp Kabushiki Kaisha
发明人： Yoshinobu Hirayama , Akira Imai , Shugo Yagi , Toru Inata , Masaki Kageyama , Kazuya Hatta , Masanori Ehara
IPC分类号： F21V8/00 , G02F1/1335 , G02B5/02
CPC分类号： G02B6/0051 , G02B5/0221 , G02B5/0257 , G02B5/0278 , G02F1/1336 , G02F2001/133607
摘要： An optical sheet (optical member) includes: a sheet-shaped base material 40 that is light-transmissive; an anisotropic light condenser that is formed on the light-receiving surface of the base material where light is received, the anisotropic light condenser having light condensing anisotropy such that incident light is condensed in a light condensing direction along the light-receiving surface whereas light is not condensed in a non-light condensing direction along the light-receiving surface, the non-light condensing direction being perpendicular to the light condensing direction; and an anisotropic light scatterer that is formed on the light-emitting surface from which light is emitted, the light-emitting surface being on a side of the base material opposite to the light-receiving surface of the base member, the anisotropic light scatterer scattering and emitting light from the anisotropic light condenser, and having light scattering anisotropy where light is greatly scattered in the light condensing direction but scattered to a lesser degree in the non-light condensing direction.
摘要翻译：光学片（光学构件）包括：透光的片状基材40; 形成在接收光的基材的受光面上的各向异性光聚光器，具有聚光各向异性的各向异性光聚光器，使得入射光沿着受光面以聚光方向会聚，而光为沿着受光面不以非聚光方向会聚，非聚光方向垂直于聚光方向; 以及形成在发光面的发光面上的各向异性光散射体，所述发光面位于与所述基材的受光面相反的所述基材的一侧，所述各向异性光散射体散射并且发射来自各向异性光聚光器的光，并且具有光散射各向异性，其中光在聚光方向上大大地散射，但是在非聚光方向上以较小的程度散射。

3. 发明授权

US09939575B2 Method of manufacturing light guide plate, lighting device, and display device 有权
公开(公告)号：US09939575B2
公开(公告)日：2018-04-10
申请号：US14778175
申请日：2014-02-27
申请人： Sharp Kabushiki Kaisha
发明人： Yoshinobu Hirayama , Tetsuyuki Takemoto , Masaki Kageyama , Masanori Ehara
IPC分类号： F21V8/00 , B29D11/00 , G02F1/1335 , B29C59/00 , B29C59/02 , G03F7/00 , B29K69/00 , B29K105/00 , B29L11/00
CPC分类号： G02B6/0065 , B29C59/002 , B29C59/005 , B29C59/022 , B29C2059/023 , B29D11/00721 , B29K2069/00 , B29K2105/256 , B29L2011/0075 , G02B6/002 , G02F1/133608 , G02F2001/133628 , G03F7/0002
摘要： A method of manufacturing a light guide plate includes steps of cutting a light guide plate base material with a frame-shaped die into a die-cut plate 50 including side surfaces each having a rectangular shape and performing thermal-imprinting process. In thermal-imprinting process, a processing surface 60a of a plate surface of a heated processing board 60 is pressed against one of the side surfaces 52 of the die-cut plate 50 to thermally imprint a pattern of the processing surface 60a of the processing board 60 on the one of the side surfaces 52 of the die-cut plate 50. The processing surface 60a having a shape that is recessed more at a portion thereof opposite a middle of a long dimension of the one of the side surfaces 52 than a portion thereof opposite ends of the long dimension of the one of the side surfaces 52 is pressed against the side surface 52.

4. 发明授权

US11018439B2 Scanned antenna and liquid crystal device 有权
公开(公告)号：US11018439B2
公开(公告)日：2021-05-25
申请号：US16180576
申请日：2018-11-05
申请人： SHARP KABUSHIKI KAISHA
发明人： Masashi Otsubo , Yoshinobu Hirayama , Akinori Kubota
IPC分类号： H01Q1/36 , H01Q21/06 , H01Q21/00 , H01Q3/44 , H01Q23/00
摘要： A scanned antenna according to an embodiment includes a plurality of first antenna elements and a plurality of second antenna elements. The first antenna elements are driven by a gate driver connected to a plurality of first gate bus lines and a first source driver connected to a plurality of first source bus lines. The second antenna elements are driven by a gate driver connected to a plurality of second gate bus lines and a second source driver connected to a plurality of second source bus lines. The gate driver and the gate driver operate independently of each other, and the first source driver and the second source driver operate independently of each other.

5. 发明授权

US09971081B1 Lighting device and display device 有权
公开(公告)号：US09971081B1
公开(公告)日：2018-05-15
申请号：US15881849
申请日：2018-01-29
申请人： Sharp Kabushiki Kaisha
发明人： Yoshinobu Hirayama , Takao Imaoku , Takeshi Ishida , Ryuzo Yuki , Shugo Yagi
IPC分类号： F21V7/04 , F21V8/00 , G02F1/1333
CPC分类号： G02B6/0038 , G02B6/00 , G02B6/0036 , G02B6/0053 , G02B6/0055 , G02B6/0061 , G02B6/0085 , G02B6/0088 , G02B6/009 , G02F1/133308 , G02F2001/133314 , G02F2001/133317
摘要： A backlight unit includes LEDs, a light guide plate, a prism sheet, exiting light reflecting portions, prisms, concave lenticular lenses, and flat portions. The concave lenticular lenses are configured such that an occupancy rate of concave cylindrical lenses with respect to the second direction is higher in an area closer to a light entering surface with respect to the first direction and the occupancy rate is lower in an area farther from the light entering surface. The flat portions are formed adjacent to the concave cylindrical lenses with respect to the second direction such that an occupancy rate of flat portions with respect to the second direction is lower in an area closer to a light entering surface with respect to the first direction and the occupancy rate of the flat portions with respect to the second direction is higher in an area farther from the light entering surface.

6. 发明授权

US09915770B2 Lighting device and display device 有权
公开(公告)号：US09915770B2
公开(公告)日：2018-03-13
申请号：US15329662
申请日：2015-07-22
申请人： Sharp Kabushiki Kaisha
发明人： Yoshinobu Hirayama , Takao Imaoku , Takeshi Ishida , Ryuzo Yuki , Shugo Yagi
IPC分类号： F21V7/04 , F21V8/00 , G02F1/1333
CPC分类号： G02B6/0038 , G02B6/00 , G02B6/0036 , G02B6/0053 , G02B6/0055 , G02B6/0061 , G02B6/0085 , G02B6/0088 , G02B6/009 , G02F1/133308 , G02F2001/133314 , G02F2001/133317
摘要： A backlight unit includes LEDs, a light guide plate, a prism sheet, exiting light reflecting portions, prisms, concave lenticular lens lenses, and flat portions. The concave lenticular lenses are configured such that an occupancy rate of concave cylindrical lenses with respect to the second direction is higher in an area closer to a light entering surface with respect to the first direction and the occupancy rate is lower in an area farther from the light entering surface. The flat portions are formed adjacent to the concave cylindrical lenses with respect to the second direction such that an occupancy rate of flat portions with respect to the second direction is lower in an area closer to a light entering surface with respect to the first direction and the occupancy rate of the flat portions with respect to the second direction is higher in an area farther from the light entering surface.

7. 发明授权

US10310164B2 Display backlight having lightguide with variable density light extraction elements 有权
公开(公告)号：US10310164B2
公开(公告)日：2019-06-04
申请号：US15533946
申请日：2015-12-03
申请人： Sharp Kabushiki Kaisha
发明人： Yoshinobu Hirayama , Takao Imaoku , Shugo Yagi
IPC分类号： G02B6/00 , F21V8/00 , G02F1/1333 , G02F1/1335 , G02F1/1362 , G02F1/1368 , G02F1/1337
摘要： A lighting device includes a light guide plate, a plurality of LEDs positioned to project light into a first side surface of the light guide plate, a reflection sheet facing a bottom surface of the light guide plate, a plurality of reflective elements on a light exit surface of the light guide plate opposite the bottom surface and extending in a direction parallel to the first side surface, and a plurality of convex elements on the bottom surface of the light guide plate. The density of the convex elements increases with increasing distance from the light source.

8. 发明授权

US10180527B2 Lighting device and display device 有权
公开(公告)号：US10180527B2
公开(公告)日：2019-01-15
申请号：US15124722
申请日：2015-02-19
申请人： Sharp Kabushiki Kaisha
发明人： Ryuzo Yuki , Takeshi Ishida , Takao Imaoku , Yoshinobu Hirayama , Shugo Yagi
IPC分类号： G02B6/00 , F21V8/00 , G02F1/1333
摘要： A backlight unit includes a light emission reflecting portion, first reflecting protrusions, and second reflecting protrusions. The light emission reflecting portion includes unit reflecting portions that include main reflecting surfaces and light reentering surfaces arranged opposite to the main reflecting surfaces, respectively. The first reflecting protrusions include extended main reflecting surfaces that continue to the main reflecting surfaces, respectively, and first auxiliary reflecting surfaces that reflect rays of light traveling toward an opposite plate surface and direct the rays of light toward the main reflecting surfaces and the extended main reflecting surfaces. The second reflecting protrusions include extended light reentering surfaces that continue to the light reentering surfaces, respectively, and second auxiliary reflecting surfaces that reflect rays of light entering through at least one of the light reentering surfaces and the extended light reentering surfaces and direct the rays of light toward the light exiting surface.

9. 发明授权

US10353237B2 Enhancing luminance in display devices using lighting guide plates 有权
公开(公告)号：US10353237B2
公开(公告)日：2019-07-16
申请号：US15533954
申请日：2015-12-03
申请人： Sharp Kabushiki Kaisha
发明人： Yoshinobu Hirayama , Takao Imaoku , Shugo Yagi
IPC分类号： G02F1/1335 , F21V8/00
摘要： A lighting device includes LEDs 17, and a light guide plate 19 including an edge surface and a pair of plate surfaces, a part of the edge surface being a light entrance surface 19B through which light from the LEDs 17 enters, and one of the plate surfaces being a light exit surface 19A through which the light exits and another one of the plate surfaces being an opposite plate surface 19C opposite from the light exit surface 19A. The light guide plate 19 includes prism portions 51 on the opposite plate surface 19C, projecting from the opposite plate surface 19C and arranged in the X-axis direction and configured to collect light toward in a normal direction of the light exit surface 19A, and an exit light reflection portion 60 provided in a recessed portion 52 that is formed by two adjacent prism portions 51 and configured to reflect light travelling within the light guide plate 19 and facilitate exiting of light from the light guide plate 19.

10. 发明授权

US09921360B2 Illumination device and display device 有权
公开(公告)号：US09921360B2
公开(公告)日：2018-03-20
申请号：US15107902
申请日：2014-12-18
申请人： Sharp Kabushiki Kaisha
发明人： Yoshinobu Hirayama , Shugo Yagi , Toru Inata
IPC分类号： F21V8/00
CPC分类号： G02B6/0038 , G02B6/0036 , G02B6/0053 , G02B6/0061 , G02B6/0085
摘要： A backlight device is provided with: LEDs; a light guide plate having a light-receiving face, a light-exiting surface, and an opposite plate surface; a prism sheet including a plurality of light-exiting side unit prisms aligned along a second direction; a light-exiting surface-side prism portion including a plurality of light-exiting surface-side prism units aligned along the second direction; a light emission reflection portion including a plurality of reflection units aligned along a first direction at an interval; an opposite plate surface-side prism portion including a plurality of opposite plate surface-side unit prisms aligned along the second direction; and bow-shaped portions disposed into such a form as to be adjacent to the light-exiting surface-side prism units in the second direction while extending along the first direction, the bow-shaped portions having a bow-shaped cross-section.

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