公开(公告)号：US20180046031A1

公开(公告)日：2018-02-15

申请号：US15554421

申请日：2016-03-08

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Kentaro KAMADA ,  Akira GOTOU ,  Keitaro MATSUI ,  Masanobu HARADA ,  Takaharu SHIMIZU

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

CPC classification number: G02F1/133608 ,  F21S2/00 ,  F21V3/00 ,  F21V3/04 ,  F21V9/08 ,  F21V9/30 ,  G02B6/0011 ,  G02B6/0033 ,  G02F1/0063 ,  G02F1/1333 ,  G02F1/133504 ,  G02F1/133536 ,  G02F1/133553 ,  G02F1/133603 ,  G02F1/133609 ,  G02F1/133611

Abstract: A lighting device includes a light source, a light guide plate, a reflection member, a wavelength converting member, and a complementary color member. The light source is configured to emit primary light rays. The light guide plate includes a light entering surface, a light exiting surface, and an opposite surface disposed opposite from the light exiting surface. The reflection member covers the opposite surface. The wavelength converting member contains phosphors that emit secondary light rays in a wavelength range different from the wavelength range when excited by the primary light rays. The wavelength converting member is configured to pass some of the primary light rays and disposed to cover a space between the light source and a light entering end or cover the light entering end. The complementary color member exhibits a color that makes a complementary color pair with a reference color exhibited by the primary light rays.

公开(公告)号：US20160131826A1

公开(公告)日：2016-05-12

申请号：US14895524

申请日：2014-07-08

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Akira GOTOU

IPC: F21V8/00

CPC classification number: G02B6/0085 ,  G02B6/0088 ,  G02B6/0091

Abstract: A backlight device includes LEDs, a light guide plate, and a heat dissipation member. The light guide plate includes edge surfaces including a light entrance surface through which light from the LEDs enters, a front plate surface as a light exit surface through which the light from the LEDs exits, and another plate surface as an opposed surface on an opposite side from the light exit surface. The heat dissipation member having heat dissipating properties includes a bottom plate portion extending along the opposed surface on an opposed surface side, and an upstanding portion extending from the bottom plate portion toward the light exit surface. The bottom plate portion includes projections projecting toward the light exit surface and facing short-side edge surfaces of the light guide plate. The projections are stopped at the corresponding edge surfaces to restrict a distance between the LEDs and the light entrance surface.

Abstract translation: 背光装置包括LED，导光板和散热构件。 导光板包括边缘表面，其包括光入射表面，来自LED的光进入该光入射表面，作为光出射表面的前板表面，来自LED的光从该入射表面出射，另一个板表面作为相对侧的相对表面 从光出射面。 具有散热特性的散热构件包括沿相对表面侧的相对表面延伸的底板部分和从底板部朝向光出射表面延伸的直立部分。 底板部分包括朝向光出射面突出并面向导光板的短边缘表面的突起。 突起在相应的边缘表面处停止以限制LED和光入射表面之间的距离。

公开(公告)号：US20160131828A1

公开(公告)日：2016-05-12

申请号：US14896739

申请日：2014-02-25

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Akira GOTOU

IPC: F21V8/00 ,  H04N9/31

CPC classification number: G02B6/0088 ,  G02B6/009 ,  G02F1/1333 ,  G02F1/133608 ,  H04N5/64 ,  H04N9/3141

Abstract: A backlight device of the present invention includes: a light guide plate having light-entering faces on opposing end faces thereof and a light-exiting surface on the front surface thereof; LEDs arranged selectively along one section of the light-entering faces of the light guide plate; a front cabinet arranged on a side of the light-exiting surface of the light guide plate and having a frame-like shape along a periphery of the light guide plate; and a rear cabinet arranged on a side of the light guide plate opposite to the front cabinet such that the rear cabinet and the front cabinet sandwich the light guide plate therebetween. The rear cabinet has a fixed portion that is disposed facing a section of the light-entering face that does not correspond to the one section where the LEDs are selectively arranged, and the fixed portion is fixed to the front cabinet.

Abstract translation: 本发明的背光装置包括：在其相对端面上具有光入射面的导光板和其前表面上的光出射面; 选择性地沿导光板的光进入面的一部分排列的LED; 前导柜，其布置在所述导光板的所述出射光面的一侧，并且沿着所述导光板的周边具有框状; 以及布置在导光板的与前机柜相对的一侧的后机柜，使得后机柜和前机柜将导光板夹在其间。 后箱具有固定部，该固定部被配置为面对与进入LED的部分不对应的入光面的一部分，固定部固定在前机壳上。

公开(公告)号：US20160102847A1

公开(公告)日：2016-04-14

申请号：US14889787

申请日：2014-02-25

Applicant: Sharp Kabushiki Kaisha

Inventor： Akira GOTOU

IPC: F21V19/00 ,  H04N5/64 ,  G02F1/1335 ,  F21V8/00 ,  F21V21/005 ,  F21V29/70

CPC classification number: F21V19/004 ,  F21V21/005 ,  F21V29/70 ,  G02B6/0073 ,  G02B6/009 ,  G02F1/1336 ,  G02F2001/133628 ,  H04N5/64 ,  H05K3/0061 ,  H05K2201/09063 ,  H05K2201/09163 ,  H05K2201/10106 ,  H05K2201/10128 ,  H05K2201/10409

Abstract: An illumination device includes: a plurality of LED substrates having a rectangular plate shape, the plurality of LED substrates arranged in a row along a long side direction thereof, and each of the LED substrates having a plurality of LEDs on one surface thereof; and a heat-dissipating member abutting another surface of each of the LED substrates. A cutout portion is provided in each of the short sides, facing each other, of the LED substrates that are adjacent to each other. A fixing screw has a screw shaft that goes through the cutout portion from the mounting surface of the LED substrates and is fixed to the heat-dissipating member and a screw head that abuts the mounting surface of each of the LED substrates that are adjacent to each other.

Abstract translation: 照明装置包括：多个LED基板，其具有矩形板状，所述多个LED基板沿着其长边方向排列成一排，并且每个所述LED基板在其一个表面上具有多个LED; 以及与每个所述LED基板的另一表面相邻的散热构件。 在彼此相邻的LED基板的彼此面对的每个短边中设置有切口部。 固定螺钉具有从LED基板的安装面穿过切口部分的螺钉轴，并固定到散热构件和与每个LED基板相邻的每个LED基板的安装表面邻接的螺钉头 其他。

公开(公告)号：US20180039006A1

公开(公告)日：2018-02-08

申请号：US15554465

申请日：2016-03-15

Applicant: Sharp Kabushiki Kaisha

Inventor： Akira GOTOU

IPC: F21V8/00 ,  G02F1/1335

Abstract: A backlight device (a lighting device) 12 includes LEDs (a light source) 17, a light guide plate 19 having a light entering end surface 19b that is a part of peripheral edge surfaces and through which light from the LEDs 17 enters and a light exiting plate surface 19a that is one of a pair of plate surfaces and through which light exits, a wavelength conversion sheet (a wavelength conversion member) 20 overlapping the light exiting plate surface 19a of the light guide plate 19 and containing phosphors that convert the light from the LEDs 17 to light with other wavelengths, and a color exhibit member 30 disposed on at least a part of a peripheral portion of the wavelength conversion sheet 20 and exhibiting a color same as or similar to a color of the light converted with wavelength conversion by the phosphors contained in the wavelength conversion sheet 20.

公开(公告)号：US20180045881A1

公开(公告)日：2018-02-15

申请号：US15554461

申请日：2016-03-10

Applicant: Sharp Kabushiki Kaisha

Inventor： Akira GOTOU ,  Keitaro MATSUI ,  Masanobu HARADA

IPC: F21V8/00 ,  G02F1/1335 ,  C09K11/70 ,  H01L33/50

CPC classification number: G02B6/0091 ,  B32B2457/202 ,  C09K11/703 ,  F21S2/00 ,  F21Y2115/10 ,  G02B6/0046 ,  G02B6/005 ,  G02B6/0055 ,  G02F1/133603 ,  G02F1/133608 ,  G02F2001/133613 ,  H01L33/501 ,  H01L33/505

Abstract: A backlight unit 12 includes LEDs 17, a light guide plate 19 including a light entry end surface 19b, a light output plate surface 19a, and an opposite plate surface 19c, a wavelength conversion sheet 20, and a reflection sheet 25. The light guide plate 18 includes a parallel plate surface 27 on a central portion of the opposite plate surface 19c and parallel with the light output plate surface 19a, and an inclined plate surface 28 on a part of the outer peripheral side portion and being inclined with respect to the light output plate surface 19a to be closer to the light output plate surface 19a as is closer to the outer peripheral end surface. The wavelength conversion sheet 20 overlaps the light output plate surface 19a and contains a phosphor that wavelength-converts the light from the LEDs 17. The reflection sheet 25 overlaps the opposite plate surface 19c and reflects light, and includes a parallel reflection portion 29 along the parallel plate surface 27, and an inclined reflection portion 30 along the inclined plate surface 28.

公开(公告)号：US20160033716A1

公开(公告)日：2016-02-04

申请号：US14780020

申请日：2014-02-25

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Akira GOTOU

IPC: F21V8/00 ,  H04N3/12

CPC classification number: G02B6/0091 ,  G02B6/0021 ,  G02B6/0068 ,  H04N3/127

Abstract: A lighting unit 12 of the present invention includes a first light source unit LU1, a second light source unit LU2, and a light guide plate 19. The first light source unit LU1 includes a first light source group 171 and a first board 181 having a first mount portion 181a and a first empty portion 181b. The second light source unit LU2 includes a second light source group 172 and a second board having a second mount portion 182a and a second empty portion 182b. The light guide plate 19 is a plate member and includes a first light entrance portion 191c, a first fixing portion 191b, a second light entrance portion 192c, a second fixing portion 192b, and a light exit portion 19a. The light guide plate 19 includes the first light entrance portion 191c on one edge portion 191 of the plate member and light enters the light guide plate 19 through the first light entrance portion 191c. The light guide plate 19 includes the first fixing portion 191b adjacent to the first light entrance portion 191 and on the one edge portion 191 and fixes the first light source unit LU1 with being in close contact with the first empty portion 181b. The light guide plate 19 includes the second light entrance portion 192c that is on another edge portion 192 and overlapped with the first fixing portion 191b. The light guide plate 19 further includes the second fixing portion 192b that is adjacent to the second light entrance portion 192c and overlapped with the first light entrance portion 191c. The second fixing portion 192b is in closely contact with the second empty portion 182b to fix the second light source unit LU2.

Abstract translation: 本发明的照明单元12包括第一光源单元LU1，第二光源单元LU2和导光板19.第一光源单元LU1包括第一光源组171和第一光源组181， 第一安装部分181a和第一空部分181b。 第二光源单元LU2包括第二光源组172和具有第二安装部182a和第二空部182b的第二板。 导光板19是板状部件，具有第一光入射部191c，第一固定部191b，第二光入射部192c，第二固定部192b和光出射部19a。 导光板19在板状部件的一个边缘部分191上包括第一光入射部分191c，并且光通过第一光入射部分191c进入导光板19。 导光板19包括与第一光入射部分191相邻的第一固定部分191b和一个边缘部分191，并且将第一光源单元LU1与第一空白部分181b紧密接触。 导光板19包括在另一边缘部分192上并与第一固定部分191b重叠的第二光入射部分192c。 导光板19还包括与第二光入射部分192c相邻并与第一光入射部分191c重叠的第二固定部分192b。 第二固定部分192b与第二空部分182b紧密接触，以固定第二光源单元LU2。