Sharp Kabushiki Kaisha Corporation

Sharp Laboratories of America, Inc

Osaka City University

Sbi Pharmaceuticals Co., Ltd.

Katsuji Iguchi

Hidenori Kawanishi

Koji Takahashi

Jun Mori

Seizo Kakimoto

Akio Kawamura

Tohru Nakanishi

Masumi Maegawa

Hiroya Sato

Tsuyoshi Ono

Naoyuki Shinmura

Tsukasa Doi

Masanori Watanabe

Takashi Yoshimoto

Shinichi Sato

Yoshihiko Tani

Tetsuya Hanamoto

Shigeo Ohnishi

Hiroki Tabuchi

Peter John Roberts

Tomoya Inoue

Noriaki Fujii

Hiroyoshi Higashisaka

Makoto Tanigawa

Takashi Kurisu

Akihiro Kurisu

Hiroyuki Kashihara

Toshiaki Asai

Hirotaka Watanabe

Masahiko Urai

Nathan Cole

Sheng Teng Hsu

Toshio Hata

Jer-shen Maa

Yasushi Kubota

Yoshi Ono

Hiroyuki Moriwaki

Kenichi Tanaka

Masatsugu Masuda

Keizo Sakiyama

Shigeo Onishi

Masanori Murakami

Hitoshi Aoki

Takashi Ono

Toshiya Ishio

Hiroaki Onuma

Shigeki Hayashida

Yuhsuke Fujita

Takanobu Matsuo

Keiichi Sawai

Kenichi Azuma

Takeo Oku

Takayuki Taniguchi

Sung T Ahn

Takashi Fukushima

Yoshiji Takamura

Shin Shimizu

Nobuyuki Takenaka

Tatsushi Yusuki

Toshiyuki Ozawa

Kunio Awazu

Chiyako Masuichi

Tomohiko Tateyama

An image display device includes a drive circuit substrate, micro LED elements, and a wavelength conversion layer that converts excitation light emitted from the micro LED elements and that emits converted long-wavelength light to a side opposite to the drive circuit substrate, the micro LED elements and the wavelength conversion layer being sequentially stacked on the drive circuit substrate. The micro LED elements include a first multilayer film that reflects the long-wavelength light converted by the wavelength conversion layer.

Image display device

A photodetector measures flight time by an imaging optical element imaging reflected light from an illuminated illumination region of an object illuminated by pulse light, and a light detection portion receiving the imaged light. The light detection portion is formed larger than a projection region reflected at the illumination region of the object and imaged on the light detection portion. In the light detection portion, a portion overlaying the projection region is activated as a light-detection region.

Photoreceptor, flight time measurement device, and optical radar

In an image display element, a side surface of a nitride semiconductor is covered with a reflection material inclined so as to open in a light emitting direction, wavelength conversion units are surrounded by partition walls, and side surfaces of the partition walls facing the wavelength conversion units are reflection surfaces inclined so as to open in the light emitting direction.

Image display element with improved light emission efficiency

An SN ratio of light to be received is improved. A polarizing filter () that is arranged in a light path extending from an object () to a light receiving unit () of a ToF sensor () and allows transmission of light polarized in a direction vertical to a direction of scanning is provided.

Optical radar apparatus

A pulsed light emitting element emits pulsed light that is linearly polarized in a first polarization direction, the pulsed light passes through a polarizing beam splitter and a lens in this order and is radiated onto a target object, reflected light passes through the lens and the polarizing beam splitter in this order, is linearly polarized in a second polarization direction that is different from the first polarization direction, and is concentrated on a light receiving element, the pulsed light emitting element and the light receiving element are provided on a focal plane of the lens, and the optical axis of the pulsed light and the optical axis of the reflected light overlap.

Pulsed light irradiation/detection device, and optical radar device

Provided is a non-mechanical-scanning-type optical radar apparatus that is capable of long distance measurement and its cost is reduced. The optical radar apparatus includes: a light emitting section; and a light receiving system, the light receiving system at least including a focusing optical element and a distance sensor that includes a light receiver, the target field of view being projected on the light receiver through the focusing optical element, the distance sensor being configured to set an activation region in a part of the light receiver depending on the scanning with the light and measure a distance to the object with use of a signal from the activation region.

Optical radar apparatus for long distance measurement

A three-dimensional image element and an optical radar device that have low cost and are capable of detecting a distance to a measurement object at a close distance before a final result of counting the number of pulses is acquired are realized. A pixel storage element has a plurality of binary counters that integrate the number of electrical pulses at mutually different timings and the reading of data by a signal processing circuit and the integration are able to be performed in parallel.

Three-dimensional image element and optical radar device comprising an optical conversion unit to convert scanned pulse light into fan-like pulse light

An N electrode and a P electrode formed on the same surface are respectively bonded to a cathode electrode and an anode electrode of a drive circuit board through a connection step performed once. An LED unit includes a first wiring () that is disposed inside a groove formed in a nitride semiconductor () to penetrate between an N-type layer () and a P-type layer () and is electrically connected to the N-type layer (), and a second wiring that includes a P electrode () connected to the P-type layer () and an N electrode () connected to the first wiring (), in which the N electrode () and the P electrode () are formed on the same surface.

LED unit, image display element, and method of manufacturing the same

A semiconductor module includes a base substrate; a plurality of light emitting elements; a plurality of color conversion layers being in contact with each upper portion of the plurality of light emitting elements adjacent to each other; and a light shielding layer disposed between the plurality of light emitting elements adjacent each other and between the color conversion layers adjacent to each other, and separating the plurality of light emitting elements and a plurality of color conversion layers.

Semiconductor module, display device, and semiconductor module production method

A micro light-emitting diode includes a first micro light-emitting diode including a first light-emitting layer and emitting light at a first wavelength, and a second micro light-emitting diode including the first light-emitting layer and a second light-emitting layer emitting light at a second wavelength longer than the first wavelength, in which the second light-emitting layer is a nitride semiconductor layer doped with a second rare earth element, and a nitride semiconductor of the first micro light-emitting diode and the nitride semiconductor of the second micro light-emitting diode are separated from each other.

Micro light-emitting diode and manufacturing method of micro light-emitting diode

Provided is a micro light emission element including a compound semiconductor in which an N-side layer, a light emission layer, and a P-side layer are laminated sequentially from a side of a light emitting surface, in which an N-electrode coupled to the N-side layer and a P-electrode coupled to the P-side layer are disposed on another surface opposite to the light emitting surface, the P-electrode is disposed on the light emission layer, the N-electrode is disposed in an isolation region which is a boundary region of the micro light emission element and isolates the light emission layer from a light emission layer of another micro light emission element, a surface of the N-electrode on a side of the other surface and a surface of the P-electrode on the side of the other surface are flush with each other, and the N-electrode and the P-electrode are both formed of a single interconnection layer.

To enable manufacturing of a display device with a low defect rate and high yield, an integrated circuit chip includes a drive circuit that drives a light emitting unit, and the drive circuit includes a P-side electrode connected to an anode of the light emitting unit and a nonvolatile memory transistor that controls current supply to the P-side electrode.

Display device

In a micro light emitting element, a first metal film electrically connected to a second conductive layer is disposed on a surface on an opposite side of a light emitting surface side. The first metal film covers the second conductive layer. A first inclined angle of a first conductive layer side surface from a slope formed around a light emission layer to the light emitting surface is larger than a second inclined angle of the slope. The slope and the first conductive layer side surface are covered together by a second metal film. A first transparent insulating film is disposed between the slope and the second metal film.

Image display element

An image display device includes a plurality of micro light-emission elements that constitute a pixel and that are provided on a driving circuit substrate. The micro light-emission element displays an image by emitting light to a side opposite to the driving circuit substrate. A light convergence portion that converges light is disposed in the pixel.

Image display device and display

An image display device includes: a plurality of LED elements that are mounted on a drive circuit substrate and emit light source light; a wavelength conversion layer that is stacked on a side of the LED elements opposite to the drive circuit substrate, converts the light source light emitted by the LED elements into long wavelength light, and emits the long wavelength light to a side opposite to the drive circuit substrate; and a first functional layer that is disposed on a light emitting surface side of the long wavelength light of the wavelength conversion layer, reflects the light source light, and transmits the long wavelength light.

Growing community of inventors

Sakai, Japan

Katsuji Iguchi