Sony Corporation

Sony Group Corporation

Toyoharu Oohata

Masato Doi

Hiroyuki Okuyama

Goshi Biwa

Toshiaki Iwafuchi

Yoshiyuki Yanagisawa

Tomoyuki Kikutani

Katsuhiro Tomoda

Hideharu Nakajima

Tomoki Ono

Takahiro Koyama

Hisashi Ohba

Jun Suzuki

Etsuo Morita

Mikio Takiguchi

Yousuke Murakami

Eriko Matsui

Kenji Shinozaki

Toshihiko Watanabe

Michio Arai

Masayuki Tanaka

Naoki Hirao

Masaru Minami

Takeshi Mizuno

A light-emitting device according to one embodiment of the present disclosure includes: a reflective structure having a first surface and a second surface and having, on the first surface, an opening whose side surface is provided with a first reflective film; a semiconductor light-emitting element including a first conductivity-type layer, an active layer, and a second conductivity-type layer that are stacked, the opening of the reflective structure and the active layer being disposed to be opposed to each other; and a support member having a light-transmitting property and having a first surface and a second surface, the semiconductor light-emitting element being disposed on the first surface side, the reflective structure being disposed on the second surface side, the second surface being at least partially in contact with the first surface of the reflective structure.

Light-emitting device and image display apparatus

Provided is a light-emitting device that includes a solid-state light source emitting excitation light and a phosphor layer having a first refractive index, provided on a light-emitting surface side of the solid-state light source, and having a first reflection film on its side surface. The light-emitting device further includes a low refractive layer provided on the phosphor layer and having a second refractive index less than the first refractive index, and a sealing member encapsulating the phosphor layer and the low refractive layer and having a third refractive index greater than or equal to the second refractive index.

Light-emitting device and image display apparatus with reflection film on side surface and layers having different refractive indices

Disclosed is a distance measurement device including a control section. The control section executes control so that an operating voltage for operating a light-receiving section is applied to the light-receiving section at a second time point. The second time point is later than a first time point by a predetermined time. The first time point is a time point at which a light-emitting section operates.

Distance measurement device and distance measurement method

A distance measurement apparatus including at least one measurement unit, in which the measurement unit includes: a voltage level converter that applies an arbitrary bias to a voltage obtained on the basis of an output from a light receiver to offset a level of the voltage; an amplifier that amplifies a voltage output from the voltage level converter; and a measurement section that measures a timing at which an output from the amplifier reaches a predetermined threshold.

Distance measurement apparatus and distance measurement method

A correction device including a photon number counting unit that counts a photon number on the basis of an output signal output from a light receiving unit, a correction value acquiring unit that acquires a correction value corresponding to the photon number, and a correction unit that performs correction based on the correction value.

Correction device, correction method, and distance measuring device

A ranging device provided with a light projecting unit for projecting a reference pulse set row including a main pulse and at least one sub pulse, a light receiving unit for receiving a reflected pulse set row obtained by reflection of the reference pulse set row by an object to be measured, and an identifying unit for identifying the reflected pulse set row corresponding to the reference pulse set row. The ranging device is further provided with a calculating unit for calculating a distance to the object to be measured on the basis of a delay time difference between the reference pulse set row and the reflected pulse set row corresponding to the reference pulse set row. The light projecting unit projects a plurality of reference pulse set rows having different pulse intervals.

Ranging device, ranging method, signal processing device, and light projecting device

A distance measurement apparatus includes at least one measurement unit. The measurement unit includes a first light reception section including a plurality of photon counting type light reception devices connected to each other and a first conversion section that converts a current outputted from the first light reception section into a voltage. The measurement unit further includes a first amplification section that outputs an amplification value obtained by amplifying the voltage outputted from the first conversion section and outputs, when the amplification value exceeds a given limit value, the limit value as the amplification value. The measurement unit further includes a first measurement section that measures a timing at which the output value from the first amplification section reaches a given threshold value.

In a semiconductor laser according to an embodiment of the present disclosure, a ridge part has a structure in which a plurality of gain regions and a plurality of Q-switch regions are each disposed alternately with each of separation regions being interposed therebetween in an extending direction of the ridge part. The separation regions each have a separation groove that separates from each other, by a space, the gain region and the Q-switch region adjacent to each other. The separation groove has a bottom surface at a position, in a second semiconductor layer, higher than a part corresponding to a foot of each of both sides of the ridge part.

Semiconductor laser, electronic apparatus, and method of driving semiconductor laser

In a semiconductor laser according to an embodiment of the present disclosure, a ridge part has a structure in which a plurality of gain regions and a plurality of Q-switch regions are each disposed alternately with each of separation regions being interposed therebetween in an extending direction of the ridge part. The separation regions each have a separation groove that separates from each other, by a space, the gain region and the Q-switch region adjacent to each other. The separation groove has a bottom surface at a position, in a second semiconductor layer, higher than a part corresponding to a foot of each of both sides of the ridge part. The semiconductor laser includes an electrode provided over the bottom surface of each separation groove with an insulating layer being interposed therebetween.

A crystal foundation having dislocations is used to obtain a crystal film of low dislocation density, a crystal substrate, and a semiconductor device. One side of a growth substrate () is provided with a crystal layer () with a buffer layer () in between. The crystal layer () has spaces (), () in an end of each threading dislocation Delongating from below. The threading dislocation Dis separated from the upper layer by the spaces (), (), so that each threading dislocation Dis blocked from propagating to the upper layer. When the displacement of the threading dislocation Dexpressed by Burgers vector is preserved to develop another dislocation, the spaces (), () vary the direction of its displacement. As a result, the upper layer above the spaces (), () turns crystalline with a low dislocation density.

Crystal film, crystal substrate, and semiconductor device

A manufacturing method of a display device, includes: a first step of collectively transferring light-emitting elements arranged at every specified number of light-emitting elements formed and arranged on a first substrate to a transfer area set on a second substrate; and a second step of transferring light-emitting elements remaining on the first substrate to between the plural light-emitting elements mounted on the second substrate in at least one of a state where the first substrate is moved with respect to the transfer area on the second substrate and a state where the first substrate is rotated in a plane.

Manufacturing method of display device and display device

A method of producing the image display unit, wherein the image display unit includes an array of a plurality of light emitting devices for displaying an image, and wherein the method of producing the image display unit employs, for example, a space expanding transfer, whereby a first transfer step includes transferring the devices arrayed on a first substrate to a temporary holding member such that the devices are spaced from each other with a pitch larger than a pitch of the devices arrayed on the first substrate, a second holding step includes holding the devices on the temporary holding member, and a third transfer step includes transferring the devices held on the temporary holding member onto a second board such that the devices are spaced from each other with a pitch larger than the pitch of the devices held on the temporary holding member.

Method of producing image display unit

A method of transferring a device includes the steps of: arranging a first substrate, on which a device is provided with a release layer having a planar shape equal to or smaller than the device interposed therebetween, and a second substrate, on which an adhesive layer is provided, so as to be spaced from and opposite each other in a state where the device and the adhesive layer face each other; and irradiating a laser beam having an irradiation area larger than the base area of the release layer onto the entire surface of the release layer from the first substrate side so as to ablate the release layer, to separate the device from the first substrate, and to transfer the device on the second substrate.

Method of transferring device

A device transfer method and a display apparatus are provided. A device transfer method and a display apparatus are provided by or in which, in transferring devices arranged on a substrate onto another substrate, it is possible to easily strip the substrate after the transfer of the devices, to lower the possibility of damaging of the substrate, and to additionally transfer devices onto the same substrate after the transfer of the devices. A plurality of devices arranged on a temporary holding substrate are embedded into and held in a pressure sensitive adhesive layer formed on a transfer substrate, and the devices are stripped from the temporary holding substrate. Other devices are further additionally embedded into the pressure sensitive adhesive layer before hardening the pressure sensitive adhesive layer, whereby the devices can be arranged on a transfer substrate having a large area. Besides, where the devices additionally embedded into the pressure sensitive adhesive layer are different in characteristics from the devices embedded in the pressure sensitive adhesive layer in advance, it is possible to easily obtain a display apparatus for multicolor display, a display apparatus having a driving circuit, and the like.

Device transfer method and display apparatus

A method of repairing a defective one of devices mounted on substrate is provided. Devices are arrayed on a substrate and electrically connected to wiring lines connected to a drive circuit, to be thus mounted on the substrate. The devices mounted on the substrate are then subjected to an emission test. If a defective device is detected in this test, a repair device is mounted at a position corresponding to a position of the defective device. At this time, after wiring lines connected to the defective device are cut off, the repair device is electrically connected to portions of the wiring lines, the portions of the wiring lines being located at positions nearer to the drive circuit side than the cut-off positions of the wiring lines. Since a defective device is repaired by a simple step that is carried out by simply mounting and fixing a repair device without removal of the defective device, it is possible to eliminate the need of any complicated, microscopic work, for example, removal of the mounted devices, and/or selective removal or repair of an insulating layer.

Growing community of inventors

Kanagawa, Japan

Toyoharu Oohata