公开(公告)号：US20190086604A1

公开(公告)日：2019-03-21

申请号：US16088461

申请日：2017-03-22

Applicant: Sharp Kabushiki Kaisha

Inventor： Hirotoshi YASUNAGA ,  Hisashi WATANABE ,  Youzou KYOUKANE

IPC: F21V8/00

CPC classification number: G02B6/0061 ,  G02B6/00 ,  G02B6/0038 ,  G02B6/0055 ,  G02B6/0088 ,  G02F1/133524 ,  G02F1/133615

Abstract: A backlight unit includes an LED, a light guide plate, a light collecting portion, an opposite end portion, and a total reflection regulator. The light guide plate includes a light entering end surface opposed to the LED and a light exiting surface that is one of plate surfaces. The light collecting portion includes light collecting pieces extending on the light exiting surface in a normal direction to the light entering end surface and arrayed in an orthogonal direction perpendicular to the normal direction. The opposite end portion is on an opposite side from the light entering end surface. A section of the opposite end portion includes a curved end surface. The total reflection regulator is disposed on at least a portion of the curved end surface and configured to regulate the amount of light in the opposite end portion to be totally reflected by the curved end surface.

公开(公告)号：US20180173058A1

公开(公告)日：2018-06-21

申请号：US15736858

申请日：2016-06-10

Applicant: Sharp Kabushiki Kaisha

Inventor： Ryuzo YUKI ,  Mitsuhiro MURATA ,  Hisashi WATANABE ,  Hirotoshi YASUNAGA

IPC: G02F1/1335 ,  F21V8/00 ,  G02B6/42

CPC classification number: G02F1/133603 ,  G02B6/0023 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0073 ,  G02B6/0088 ,  G02B6/0091 ,  G02B6/426 ,  G02F1/133308 ,  G02F1/133606 ,  G02F1/133615 ,  G02F2001/133337 ,  G02F2001/133607

Abstract: A backlight device includes LEDs, a light guide plate, a LED board, and a bonding member. The light guide plate has a light entrance edge surface that is a part of peripheral edge surfaces thereof and through which light from the LED enters, a light exiting plate surface that is one of plate surfaces thereof and through which light exits, and another one of the plate surfaces as an opposite plate surface. The LED board has a mounting surface on which the LEDs are mounted, and has a part overlapping a part of the light guide plate on an opposite plate surface side. The bonding member is bonded to the mounting surface of the part of the LED board and to the opposite plate surface of the part of the light guide plate and the bonding member includes a light absorbing bonding layer containing light absorbing material.

公开(公告)号：US20180031898A1

公开(公告)日：2018-02-01

申请号：US15550816

申请日：2016-03-03

Applicant: Sharp Kabushiki Kaisha

Inventor： Kohhei TANAKA ,  Tomohiro KIMURA ,  Masahiro MITANI ,  Takayuki NISHIYAMA ,  Hisashi WATANABE ,  Youhei NAKANISHI ,  Ryuzo YUKI ,  Masayuki KANEHIRO ,  Seiichi UCHIDA ,  Toshihiro YANAGI

IPC: G02F1/1333 ,  F21V8/00 ,  G02F1/1362

CPC classification number: G02F1/133308 ,  G02B6/005 ,  G02B6/0068 ,  G02B6/009 ,  G02F1/1333 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/136286 ,  G02F2201/56 ,  G09G3/3648 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2320/0233 ,  G09G2380/02

Abstract: A liquid crystal display device (a display device) includes a liquid crystal panel (a display panel) having an outer peripheral edge portion having a substantially circular shape and including linear edge portions that are linear at a part of the outer peripheral edge portion, and flexible printed circuit boards (mounting components) mounted in an outer portion of the liquid crystal display panel to match arrangement of the linear edge portions in a circumferential direction.

公开(公告)号：US20170293067A1

公开(公告)日：2017-10-12

申请号：US15512590

申请日：2015-10-08

Applicant: Sharp Kabushiki Kaisha

Inventor： Hisashi WATANABE ,  Ryuzo YUKI ,  Mitsuhiro MURATA

IPC: F21V8/00

CPC classification number: G02B6/0033 ,  G02B6/0055 ,  G02B6/0061 ,  G02B6/0065 ,  G02B6/0076 ,  G02B6/0088 ,  G02F1/133308

Abstract: A backlight device 13 includes LEDs 22, a light guide plate 24, and a light reflecting portion 34. The light guide plate 24 is a plate member and includes a light entrance surface 24a, an opposite edge surface 24d, and a light exit surface 24b. The light entrance surface 24a is an edge surface of the plate member and opposite the LEDs 22 and light emitted by the LEDs 22 enters the light guide plate 24 through the light entrance surface. The opposite edge surface 24d is another edge surface of the plate member that is on an opposite side from the light entrance surface 24a. The light exit surface 24b is a plate surface of the plate member and the light entering through the light entrance surface 24a exits the light guide plate 24 through the light exit surface. The light reflecting portion 34 is disposed on at least the opposite edge surface 24d and reflecting light travelling within the light guide plate 24 toward the opposite edge surface 24d.

公开(公告)号：US20170131811A1

公开(公告)日：2017-05-11

申请号：US15319969

申请日：2015-06-19

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hisashi WATANABE ,  Tomohiro KIMURA ,  Jean MUGIRANEZA ,  Yasuhiro SUGITA

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F1/1626 ,  G06F1/1643 ,  G06F3/0416 ,  G06F2203/04111

Abstract: Provided is a touch-panel-equipped display device that is capable of detecting a touch on a side surface of a case (1) at a high accuracy by a simple controlling operation, without any hardware such as expensive sensors being provided additionally. In the touch-panel-equipped display device, a side surface electrode part can be electrically connected by capacitive coupling with a Y-direction electrode part. A change in capacitive coupling when the side surface electrode part is touched by a finger or the like, therefore, is reflected in a sense signal acquired by the Y-direction electrode part. In other words, in the touch-panel-equipped display device, a touch on the side surface electrode part can be detected using the sense signal. The touch-panel-equipped display device, therefore, is capable of detecting a touch on the side surface electrode part by using hardware and signal processing for touch detection in a conventional touch panel.

公开(公告)号：US20180063957A1

公开(公告)日：2018-03-01

申请号：US15556700

申请日：2016-03-24

Applicant: Sharp Kabushiki Kaisha

Inventor： Hisashi WATANABE

IPC: H05K1/14 ,  H05K1/11 ,  H05K1/18 ,  H05K1/02 ,  G02F1/1345

CPC classification number: H05K1/147 ,  G02F1/133615 ,  G02F1/13452 ,  G02F2201/56 ,  H05K1/028 ,  H05K1/118 ,  H05K1/148 ,  H05K1/189 ,  H05K2201/055 ,  H05K2201/056 ,  H05K2201/09009 ,  H05K2201/09027 ,  H05K2201/10128 ,  H05K2201/10136

Abstract: The present invention provides a flexible printed circuit capable of being mounted to an outer edge portion of a display panel including a periphery that is at least partially curved. The flexible printed circuit of the present invention includes: a flexible substrate provided with multiple slits; multiple conductive lines; and multiple terminals electrically coupled with the respective conductive lines in an independent manner. The slits and the conductive lines are disposed in the longitudinal direction of the flexible substrate. The terminals are disposed on a first longitudinal end of the flexible substrate.

公开(公告)号：US20170363793A1

公开(公告)日：2017-12-21

申请号：US15188144

申请日：2016-06-21

Applicant: Sharp Kabushiki Kaisha

Inventor： David James MONTGOMERY ,  Takeshi ISHIDA ,  Hisashi WATANABE

IPC: F21V8/00

CPC classification number: G02B6/0025 ,  G02B6/00 ,  G02B6/0088

Abstract: A backlight unit includes a lightguide, a light source that emits light to the lightguide, and a barrier layer positioned over the lightguide in a light emitting direction relative to the lightguide. The barrier layer defines a bezel area of the backlight unit, and an active area of the backlight unit from which light is emitted from the lightguide is an area adjacent to a boundary of the bezel area. A prism structure is positioned in the bezel area, wherein stray light emitted from the light source uncoupled to the lightguide is at least partially coupled into the lightguide by the prism structure or directed to a greater degree along the lightguide. The prism structure may be configured as a plurality of lenticular triangular prisms, and may be mounted to a mounting frame, back reflector, or flat panel connector of the backlight unit.

公开(公告)号：US20170228209A1

公开(公告)日：2017-08-10

申请号：US15500567

申请日：2015-07-31

Applicant: Sharp Kabushiki Kaisha

Inventor： Hisashi WATANABE

IPC: G06F3/14 ,  G09F23/06 ,  G06F1/16 ,  G09G3/20 ,  G09G3/36

CPC classification number: G06F3/1438 ,  G02F1/13336 ,  G02F1/13452 ,  G02F2201/56 ,  G06F1/1601 ,  G06F3/1446 ,  G09F23/06 ,  G09G3/2092 ,  G09G3/36 ,  G09G2300/026 ,  G09G2300/04

Abstract: Provided is a configuration of a display device that can have a narrower frame. A display device (1) includes a first display unit (11) including a first substrate (111); a second display unit (12) including a second substrate (121) that is arranged so as to be adjacent to the first substrate (111) in an in-plane direction of the first substrate (111); a first line group (1171) that supplies a signal to the first display unit (11), the first line group (1171) passing through between the first substrate (111) and the second substrate (121); and a second line group (1271) that supplies a signal to the second display unit (12), the second line group (1271) passing through between the first substrate (111) and the second substrate (121). The first display unit (11) includes a mounting area to which the first line group (1171) is connected, in a part that is opposed to the second display unit (12), and the second display unit (12) includes a mounting area to which the second line group (1271) is connected, in a part that is opposed to the first display unit (11).

公开(公告)号：US20190094448A1

公开(公告)日：2019-03-28

申请号：US16082587

申请日：2017-03-10

Applicant: Sharp Kabushiki Kaisha

Inventor： Hisashi WATANABE ,  Hirotoshi YASUNAGA ,  Youzou KYOUKANE ,  Takeshi ISHIDA

IPC: F21V8/00

Abstract: A backlight device 12 includes LEDs 15, a light guide plate 17 having a light entering edge surface 17a opposite the LEDs 15 and having plate surfaces one of which is alight exit plate surface 17b, and a light collecting portion 22 including unit light collecting portions 22a that extend in a normal direction of the light entering edge surface 17a on the light exit plate surface 17b and are arranged in a perpendicular direction perpendicular to the normal direction. The light guide plate 17 includes an opposite edge portion 23 that is opposite from an end portion thereof having the light entering edge surface 17a, the opposite edge portion 23 has an edge surface a part of which is a curved edge surface 24 having a curved planar shape and the opposite edge portion 23 has the light exit plate surface 17b a part of which is a light collecting portion non-forming section 25 on which no light collecting portion 22 is formed.

公开(公告)号：US20190072822A1

公开(公告)日：2019-03-07

申请号：US15765495

申请日：2016-09-28

Applicant: Sharp Kabushiki Kaisha

Inventor： Hirotoshi YASUNAGA ,  Mitsuhiro MURATA ,  Hisashi WATANABE ,  Ryuzo YUKI

IPC: G02F1/1335

Abstract: 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.