Sharp Kabushiki Kaisha Corporation

Ryuzo Yuki

Takeshi Ishida

Mitsuhiro Murata

Hisashi Watanabe

Hirotoshi Yasunaga

Shinya Kadowaki

Takeshi Masuda

Shugo Yagi

Takao Imaoku

Yoshinobu Hirayama

Tomohiro Kimura

Hiromi Enomoto

Makoto Yoshimura

Ichiro Umekawa

Masaki Kageyama

Hirofumi Oosawa

Hidefumi Yoshida

Kiyoshi Minoura

Akira Sakai

Toshihiro Yanagi

Kohhei Tanaka

Youhei Nakanishi

Seiichi Uchida

Kohzoh Nakamura

Masayuki Kanehiro

Takayuki Nishiyama

Naru Usukura

Youzou Kyoukane

Masahiro Mitani

Katsutoshi Kikuchi

Fumie Kunimasa

Hayato Nakamura

Shugo Kano

A support system includes: a container that is deformable; an ER fluid sealed in the container; and a plurality of application electrodes each provided in the container, and the support system further includes a plurality of rigid bodies each firmly fixed to the container.

Support system and flexible display device comprising support system

A display device includes an active matrix substrate including a transistor element and a light-emitting element layer provided on the active matrix substrate and including a first electrode, a second electrode, a function layer including a light-emitting layer between the first electrode and the second electrode, and a sealing layer. The display device includes: a half mirror provided on a display surface side of the light-emitting element layer; and a first λ/plate, a reflective polarizer, and an absorbing polarizer which are provided in order from the light-emitting element layer side between the light-emitting element layer and the half mirror.

Display device including reflective and absorbing polarizers

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 () that includes a plurality of light-emitting elements (Lto L) arranged curvilinearly, a second light-emitting unit () that includes a plurality of light-emitting elements (Lto L) arranged curvilinearly, and a coupling portion () 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.

Light-emitting device, lighting device, and display device

The present disclosure provides a display apparatus capable of suppressing screen-door effect without requiring alignment between an optical element and a pixel. A display apparatus () includes a CF substrate () that determines a color of a sub-pixel corresponding to a color element, for each of a plurality of pixels, and a lenticular lens () that widens a full width at half maximum of luminance of emitted light more than a full width at half maximum of luminance of light incident from the CF substrate, in which the lenticular lens has a periodic structure smaller than a periodicity of arrangement of sub-pixels.

Display apparatus and head mount display

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.

Lighting device and display device having side emitting light source and light guide

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.

Lighting device and display device

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.

A lighting device includes a light guide plate () having a light exit surface (A) having a substantially circular shape and a light entrance surface (C) extending along an entire periphery of an outer edge of the light exit surface (A), an LED (A) opposite the light entrance surface (C), and an LED (A) that is opposite the light entrance surface (C) and is connected in parallel to the LED (A) and the LED (A) is arranged opposite from the LED (A) with having a center (C) of the light exit surface (A) therebetween.

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.

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.

Illumination device for a display device comprising a light guide plate having at least one of a through hole and a cutout

A liquid crystal display device includes a liquid crystal panel, a liquid crystal panel flexible circuit board, and a backlight unit. The backlight unit includes LEDs, a light guide plate, a chassis, and an LED board. The light guide plate has an outer shape conforming to an outer shape of the liquid crystal panel. The chassis including a sidewall portion which surrounds the light guide plate and the LEDs. The LED board has an outer shape conforming to the outer shape of the light guide plate. The LEDs are mounted on the LED board at intervals in the circumferential direction. The LED board includes LED mount portions, and LED interval portions. The LED interval portions include a cut-out LED interval portion. Between the cut-out LED interval portion and the sidewall portion, a liquid crystal panel flexible circuit board passing space is provided.

Display device

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.

A backlight deviceincludes LEDs, a light guide plate, and a light reflecting portion. The light guide plateis a plate member and includes a light entrance surface, an opposite edge surface, and a light exit surface. The light entrance surfaceis an edge surface of the plate member and opposite the LEDsand light emitted by the LEDsenters the light guide platethrough the light entrance surface. The opposite edge surfaceis another edge surface of the plate member that is on an opposite side from the light entrance surface. The light exit surfaceis a plate surface of the plate member and the light entering through the light entrance surfaceexits the light guide platethrough the light exit surface. The light reflecting portionis disposed on at least the opposite edge surfaceand reflecting light travelling within the light guide platetoward the opposite edge surface

Lighting device, display device, and method of manufacturing lighting device

A backlight deviceincludes at least: a plurality of LEDsarranged in an annular and curved shape; a light guide platesurrounded by the plurality of LEDshaving am outer shape along the arrangement of the plurality of LEDs, and guiding light from the plurality of LEDs; and an LED board (light source board)on which the plurality of LEDsare mounted and wiring portionsfor feeding power to the plurality of LEDsare formed. The LED boardextends along the arrangement of the plurality of LEDs, and has a terminated annular shape or an endless annular shape, and includes a no-wiring formed region NWA in a part with respect to the circumferential direction thereof, where the wiring portionsare not formed.

A backlight device includes LEDs, a light guide plate, an LED substrate, an optical sheet, and a low light-transmissive member. The light guide plate includes a light entering end surface, a light exiting plate surface, and an opposite plate surface. The LED substrate is disposed such that at least a section of the LED substrate overlaps a light entering-side edge section that is an edge section of the light guide plate on the light entering end surface side. The optical sheet includes a light entering-side edge section overlapping section disposed on the light exiting plate surface side of the light guide plate to overlap the light entering-side edge section. The low light-transmissive member disposed on the light entering-side edge section overlapping section of the optical sheet. The low light-transmissive member has a light transmissivity lower than that of other sections of the optical sheet.

Growing community of inventors

Sakai, Japan

Ryuzo Yuki