公开(公告)号：US10527778B2

公开(公告)日：2020-01-07

申请号：US15759232

申请日：2016-09-08

Applicant: Sharp Kabushiki Kaisha

Inventor： Ryuzo Yuki ,  Katsutoshi Kikuchi ,  Hayato Nakamura ,  Makoto Yoshimura ,  Hiromi Enomoto ,  Mitsuhiro Murata ,  Hisashi Watanabe ,  Hirotoshi Yasunaga

IPC: G04B19/30 ,  F21V8/00

Abstract: 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.

公开(公告)号：US11079805B2

公开(公告)日：2021-08-03

申请号：US16624888

申请日：2018-06-18

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Kazuyuki Yamanaka ,  Masayuki Ohhashi ,  Katsutoshi Kikuchi

IPC: G06F1/16 ,  G09F9/30 ,  H05K5/00

Abstract: A display panel provided with a protective film includes a display panel and the protective film that is provided on a display surface of the display panel, in which the display panel is provided with a first through-hole passing through the display panel in a thickness direction, the protective film includes a first protective film, the first protective film is provided with a second through-hole passing through the first protective film in the thickness direction, the first through-hole and the second through-hole are in communication with each other and form a through-hole, the first protective film includes a first grip portion at a peripheral edge portion of the first protective film, and the first protective film includes a dividing portion that continues from the second through-hole to an end side of the first grip portion.

公开(公告)号：US09588272B2

公开(公告)日：2017-03-07

申请号：US14786648

申请日：2014-02-25

Applicant: Sharp Kabushiki Kaisha

Inventor： Masakazu Komano ,  Katsutoshi Kikuchi ,  Kazunori Minoura

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0023 ,  G02B6/00 ,  G02B6/0028 ,  G02B6/0068 ,  G02B6/0083 ,  G02B6/0091 ,  G02F1/133512 ,  G02F1/133615

Abstract: A backlight device includes LEDs, a light guide plate, an LED board, and a light blocking portion. The light guide plate includes a side surface configured as a light entrance surface through which light from the LEDs enters and a plate surface configured as a light exit surface through which light exits the light guide plate. The LED board on which the LEDs are mounted and at least a portion of which is a light guide plate overlapping portion is on a light exit surface side. The light guide plate overlapping portion overlaps a light entering edge portion that is an edge portion of the light guide plate close to the light entrance surface. The light blocking portion is at the light guide plate overlapping portion of the LED board and between the light guide plate overlapping portion and the light entering edge portion of the light guide plate.

Abstract translation: 背光装置包括LED，导光板，LED板和遮光部。 导光板包括被配置为光入射表面的侧表面，来自LED的光进入该侧面，以及被配置为光出射表面的光盘表面，光从该导光板离开导光板。 其上安装有LED并且其至少一部分是导光板重叠部分的LED板位于光出射面侧。 导光板重叠部分与导光板的靠近光入射表面的边缘部分的入光边缘部分重叠。 遮光部位于LED基板的导光板重叠部分和导光板重叠部分与导光板的光进入边缘部分之间。

公开(公告)号：US10754086B2

公开(公告)日：2020-08-25

申请号：US16339649

申请日：2017-10-02

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Katsutoshi Kikuchi ,  Hiromi Enomoto

IPC: G09G3/34 ,  F21V8/00 ,  H05K1/18 ,  G09G3/36 ,  F21S2/00 ,  G02F1/133

Abstract: A liquid crystal display device includes a liquid crystal panel, a backlight device at least including LEDs arrayed at intervals and LED wiring portions connected to the LEDs such that the LEDs adjacent to one another have different connection targets, an image signal generation unit that generates an image signal related to the image, a panel control unit that displays the image on the liquid crystal panel based on the image signal generated in the image signal generation unit, and an LED control unit that energizes a relatively great amount of the LED wiring portions when the image based on the image signal sent from the image signal generation unit is a normal image, and selectively energizes a relatively small amount of the LED wiring portions when the image is a small image of which a display range is smaller than a display range of the normal image.

公开(公告)号：US10802313B2

公开(公告)日：2020-10-13

申请号：US16461841

申请日：2017-12-08

Applicant: Sharp Kabushiki Kaisha

Inventor： Masayuki Ohashi ,  Katsutoshi Kikuchi

IPC: G02F1/1333 ,  G02F1/1335 ,  G04G17/04

Abstract: A display device includes a display panel including a display area and a center non-display area, a polarizing plate on an outer surface of the display panel, a curved outer shape part included in a part of an outer shape of one of the display panel and the polarizing plate and having a curved planar shape, a linear outer shape part included in a part of the outer shape of one of or both of the display panel and the polarizing plate and having a linear planar shape, and an alignment mark included in another one or both of the polarizing plate and the display panel and disposed at a position overlapping the center non-display area and including a linear indicator part having a linear planar shape that is parallel to the linear outer shape part and a reference point part overlapping the linear indicator part.