Abstract: A display apparatus with a high aperture ratio is provided. The display apparatus includes first and second light-emitting devices, a first conductive layer, a second conductive layer, and a first insulating layer. The first light-emitting device includes a first pixel electrode, a first EL layer, and a common electrode over the first EL layer. The second light-emitting device includes a second pixel electrode, a second EL layer, and the common electrode over the second EL layer. The first conductive layer is provided over the common electrode. The first insulating layer is provided over the first conductive layer. The second conductive layer is provided over the first insulating layer. Any one or both of the first and second conductive layers overlap with a region interposed between the first EL layer and the second EL layer. One side surface of the first EL layer and one side surface of the second EL layer are provided to face each other.

Abstract: A tape material control apparatus includes a supply portion configured to supply a tape material including a peeling member and a sticker member, a first roller configured to feed the tape material to a peeling position where the sticker member is peeled off from the peeling member, a first rotary driving portion, a second roller configured to convey the peeling member from which the sticker member has been peeled off at the peeling position, a second rotary driving portion, a third roller around which the sticker member peeled off at the peeling position is windable, a third rotary driving portion, and a controller is configured to individually control a feeding speed of the tape material by the first rotary driving portion, a conveyance speed of the peeling member by the second rotary driving portion, and a winding speed of the sticker member by the third rotary driving portion.

Abstract: An electronic device having an authentication method with high security is provided. The electronic device includes a pixel portion, a sensor portion, and an authentication portion. The pixel portion includes a display element and a light-receiving element. The pixel portion includes a first region and has a function of making the display element of the first region emit light. The pixel portion has a function of obtaining first authentication information by capturing an image of an object that is in contact with the first region with the use of the light-receiving element. The sensor portion includes a second region and has a function of obtaining second authentication information by capturing an image of an object that is in contact with the second region. The authentication portion has a function of performing first authentication processing using the first authentication information.

Abstract: A display device with a high aperture ratio is provided. The display device includes, in a pixel, a first transistor, a second transistor, a first insulating layer, a second insulating layer, a conductive layer, a pixel electrode, a layer containing a liquid crystal material, and a common electrode. The first insulating layer is positioned over a channel formation region of the first transistor. The conductive layer is positioned over the first insulating layer. The second insulating layer is positioned over the first transistor, the second transistor, the first insulating layer, and the conductive layer. The pixel electrode is positioned over the second insulating layer, the layer containing a liquid crystal material is positioned over the pixel electrode, and the common electrode is positioned over the layer containing a liquid crystal material. The common electrode overlaps with the conductive layer with the layer containing a liquid crystal material and the pixel electrode therebetween.

Abstract: A composite device with a high security level is provided. A composite device capable of inhibiting unauthorized use favorably is provided. The composite device includes a control portion, a detection portion, an authentication portion, and a memory portion. The detection portion has a function of detecting a touch and a function of obtaining first fingerprint data of a finger touching the detection portion. The authentication portion has a function of executing user authentication processing. The memory portion has a function of retaining second fingerprint data registered in advance. The control portion has a function of bringing a system into an unlocked state when the authentication portion authenticates a user and a function of comparing the first fingerprint data obtained by the detection portion and the second fingerprint data when the detection portion detects a touch, and bringing the system into a locked state in the case where those data do not match.

Abstract: A screen according to an embodiment of the present technology is a screen that displays an image in accordance with emission of image light including light in a predetermined polarized state as a major component and includes a corrugated surface and an optical element unit. The corrugated surface includes a plurality of reflection surfaces, the plurality of reflection surfaces having light transmissivity and diffusing and reflecting the emitted image light. The optical element unit is configured in accordance with a polarized state of the image light on a second side opposite to a first side of the corrugated surface on which the image light is emitted, restricts transmission of the image light to the second side, and transmits at least part of light entering from the second side.

Abstract: The resolution of a display apparatus having alight detection function is increased. The display apparatus includes a light-emitting device and a light-emitting and light-receiving device. The light-emitting device includes a first pixel electrode, a first light-emitting layer, and a common electrode; the light-emitting and light-receiving device includes a second pixel electrode, a second light-emitting layer, an active layer, and the common electrode; the active layer includes an organic compound; the first light-emitting layer is positioned between the first pixel electrode and the common electrode; the second light-emitting layer and the active layer are each positioned between the second pixel electrode and the common electrode; the light-emitting device has a function of emitting light of a first color; and the light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color.

Abstract: A carbon catalyst has a carbon structure with a crystallite size Lc falling within 0.90 nm or more and 1.20 nm or less calculated through use of a Bragg angle of a diffraction peak fbroad at a diffraction angle 2? of 24.0°±4.0° obtained by separating a diffraction peak in the vicinity of a diffraction angle 2? of 26° in an X-ray diffraction pattern obtained by powder X-ray diffraction using a CuK? ray, and a carbon dioxide desorption amount from 650° C. to 1,200° C. of 97 ?mol/g or less, a total of a carbon monoxide desorption amount and a carbon dioxide desorption amount from 650° C. to 1,200° C. of 647 ?mol/g or less, or a carbon monoxide desorption amount from 650° C. to 1,200° C. of 549 ?mol/g or less in a temperature programmed desorption method including measuring a carbon dioxide desorption amount from 25° C. to 1,200° C.

Abstract: An electronic device having an authentication method with a high security level is provided. The electronic device includes a pixel portion, a sensor portion, an authentication portion, and a housing. The pixel portion includes a display element and a light-receiving element. The pixel portion has a function of turning on the display element. The pixel portion has a function of obtaining authentication information by capturing an image of a target object touching the pixel portion. The sensor portion has a function of detecting attachment or detachment to a living body or an object. The authentication portion has a function of performing authentication processing with the use of the authentication information. The housing includes a first surface and a second surface opposite to the first surface. The pixel portion is positioned on the first surface and the sensor portion is positioned on the second surface.

Abstract: A display apparatus having an image capturing function is provided. A display apparatus with a high aperture ratio is provided. The display apparatus includes a first light-emitting element, a light-receiving element, and a first coloring layer; the first light-emitting element includes a first pixel electrode, a first organic layer over the first pixel electrode, and a common electrode over the first organic layer; the light-receiving element includes a second pixel electrode, a second organic layer over the second pixel electrode, and the common electrode over the second organic layer; the first organic layer includes a first light-emitting layer; the second organic layer includes a photoelectric conversion layer; the first coloring layer is positioned to overlap with first light-emitting element; and the photoelectric conversion layer has sensitivity in a wavelength range of light passing through the first coloring layer.

Abstract: In a battery pack with bus bars, a first conductive member includes a first joining portion joined to a first positive electrode terminal and a first extending portion extending from the first joining portion, a second conductive member includes a second joining portion joined to a second negative electrode terminal and a second extending portion extending from the second joining portion, the first conductive member and the second conductive member are made of different materials, the first conductive member and the second conductive member are connected by a third joining portion, and the third joining portion is formed on an overlapping portion of the first extending portion and the second extending portion with a distance closer to the third joining portion out of a distance between the first joining portion and the third joining portion and a distance between the second joining portion and the third joining portion.

Abstract: A display apparatus having a photoelectric conversion function with high sensitivity is provided. The light extraction efficiency of the display apparatus is increased. The display apparatus includes a light-emitting device, a light-emitting and light-receiving device, a first lens, and a second lens. The light-emitting device has a function of emitting light of a first color. The light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color and converting it into an electric signal. The light emitted by the light-emitting device is emitted to the outside of the display apparatus through the first lens. Light enters the light-emitting and light-receiving device from the outside of the display apparatus through the second lens.

Abstract: A display apparatus having an image capturing function is provided. A display apparatus or an image capturing device with a high aperture ratio is provided. The display apparatus includes a light-emitting element, a light-receiving element, a first resin layer, and a light-blocking layer. A first pixel electrode, a first organic layer, and a common electrode are stacked in this order in the light-emitting element. A second pixel electrode, a second organic layer, and the common electrode are stacked in this order in the light-receiving element. The first organic layer includes a first light-emitting layer, and the second organic layer includes a photoelectric conversion layer. The light-blocking layer includes a portion positioned, in a plan view, between the light-emitting element and the light-receiving element. The first resin layer is provided to cover the light-emitting element and the light-receiving element.

Abstract: A specific unit in a first wireless communication device determines whether a second wireless communication device is a priority candidate device based on the possibility that the connection with the second wireless communication device will be disconnected. When a communication control unit receives a permission request for a communication with the second wireless communication device from a connection control unit, it grants a permission to a communication with a “priority candidate device”.

Abstract: A rotary feedthrough according to the disclosure includes: a seal partition wall dividing a space into a first space and a second space; a rotating member positioned to extend through the seal partition wall and configured to transmit a rotational driving force; a rotation input unit positioned in the first space and configured to input a driving force to the rotating member; and a rotation restraining unit positioned in the second space and configured to restrain rotation of the rotating member. The rotation restraining unit restrains rotation of the rotating member about a rotation axis exceeding a predetermined rotation angle.

Abstract: A method for producing an organometallic nucleophile includes reacting an organohalide and a metal or metal compound with each other by a mechanochemical process in the presence of an ether compound in an amount of 0.5 to 10.0 equivalents relative to 1 equivalent of the organohalide. By utilizing the method, a method for producing an organometallic nucleophile can be performed without using a large-scale apparatus, a reaction method for reactions between an organometallic nucleophile and various organic electrophiles can be performed by an efficient and simplified means, and a simplified method for producing an organometallic nucleophile can be performed with high reactivity.

Abstract: Disclosed is a method for producing a mono-cross-coupled aromatic compound (3-1) having one less leaving group than an aromatic compound (1) having at least two leaving groups, the method comprising: preparing the aromatic compound (1) having at least two leaving groups; preparing a compound (2) capable of undergoing a cross-coupling reaction selected from an aromatic boronic acid (2-1), an aromatic amino compound (2-2), a diboronic acid ester (2-3), an aromatic compound (2-4) having a hydroxyl group and an aromatic compound (2-5) having a thiol group; and performing a cross-coupling reaction of the aromatic compound (1) having at least two leaving groups with the compound (2) in the presence of a palladium catalyst and a base, in the absence of a solvent.

Abstract: Disclosed are a method for producing a highly reactive intermediate, which comprises: preparing an electron-accepting active compound (1), preparing a piezoelectric material (3), and applying mechanical strain to the piezoelectric material (3) in the presence of the electron-accepting active compound (1) and the piezoelectric material (3), and subjecting the compound (1) to one-electron reduction to generate a corresponding highly reactive intermediate; a redox reaction method using the method for producing the same; and a method for producing a redox reaction product.

Abstract: Disclosed is a cross-coupling reaction method which forms a chemical bond selected from C—N, C—B, C—C, C—O and C—S bonds, the method comprising: preparing an aromatic compound (1) having a leaving group; preparing a compound (2) capable of undergoing a cross-coupling reaction selected from an aromatic amino compound (2-1), a diboronic acid ester or the like (2-2), an aromatic boronic acid or the like (2-3), an aromatic compound (2-4) having a hydroxyl group and an aromatic compound (2-5) having a thiol group; and performing a cross-coupling reaction of the compound (1) with the compound (2) in the presence of a palladium catalyst, a base and a compound (4) having a carbon-carbon double bond or a carbon-carbon triple bond, in the absence of a solvent.

Abstract: Disclosed is a cross-coupling reaction method which forms a chemical bond selected from C—N, C—B, C—C, C—O and C—S bonds, the method comprising: preparing an aromatic compound (1) having a leaving group; preparing a compound (2) capable of undergoing a cross-coupling reaction selected from an aromatic amino compound (2-1), a diboronic acid ester or the like (2-2), an aromatic boronic acid or the like (2-3), an aromatic compound (2-4) having a hydroxyl group and an aromatic compound (2-5) having a thiol group; and performing a cross-coupling reaction of the compound (1) with the compound (2) in the presence of a palladium catalyst, a base and a compound (4) having a carbon-carbon double bond or a carbon-carbon triple bond, in the absence of a solvent.