Abstract: A display device having both a touch detection function and a function of capturing an image of a shape of a fingerprint or a vein is provided. The display device includes a first substrate, a first light-emitting element, a second light-emitting element, a light-receiving element, a light-blocking layer, a first resin layer, and a second resin layer. The first light-emitting element and the light-receiving element are arranged over the first substrate, and the first resin layer is provided over the first light-emitting element and the light-receiving element. The light-blocking layer is provided over the first resin layer, and the second light-emitting element is provided over the light-blocking layer. The second resin layer is provided over the second light-emitting layer. The first light-emitting element emits visible light upward, and the second light-emitting element emits invisible light upward.

Abstract: A controller for a hydrogen engine controls a hydrogen engine including a selective catalytic reduction (SCR) device installed in an exhaust passage and a urea addition valve that adds urea to exhaust gas flowing through a portion of the exhaust passage upstream of the SCR device. Processing circuitry of the controller executes a reduction process that causes a urea addition amount of the urea addition valve to be smaller when a urea deposition amount of the SCR device is greater than or equal to a prescribed value than when the urea deposition amount is less than the prescribed value. The processing circuitry executes a lean-burn limiting process that sets an air-fuel ratio of an air-fuel mixture to be burned in the hydrogen engine to a value less than or equal to a prescribed lean-burn limiting value while the reduction process is reducing the urea addition amount.

Abstract: An internal combustion engine includes a fuel injection valve configured to inject hydrogen gas into the cylinder, a selective catalytic reduction catalyst located in an exhaust passage and configured to remove NOx, a urea water injection valve configured to inject urea water into the catalyst, a tank that stores urea water injected by the urea water injection valve, and a remaining amount detection sensor configured to detect a remaining amount of urea water stored in the tank. A controller for the internal combustion engine is configured to execute a restriction process that controls, when the remaining amount is less than a set value, an injection amount of hydrogen gas by the fuel injection valve such that an air excess ratio in the cylinder becomes greater than or equal to a specified excess ratio that is greater than 1.

Abstract: To provide a display device capable of performing image processing. Each pixel is provided with a memory circuit in which desired correction data is retained. The correction data is generated by calculation in an external device and written to each pixel. The correction data is added to image data by capacitive coupling and supplied to a display element. Thus, the display element can display a corrected image. Through the correction, image upconversion can be performed, or image quality decreased because of variations in pixel transistor characteristics can be corrected.

Abstract: A power module is obtained in which the thermal resistance in the range from a semiconductor device to a base plate is reduced and the stress in the joining portion is relieved. The power module includes at least one semiconductor device, an insulating substrate having an insulating layer, a circuit layer provided on an upper surface of the insulating layer and a metal layer provided on a lower surface of the insulating layer, and a sintering joining member with an upper surface larger in outer circumference than a back surface of the at least one semiconductor device, to join together the back surface of the at least one semiconductor device and an upper surface of the circuit layer on an upper-surface side of the insulating layer.

Abstract: A light-blocking device that includes a display device is provided. A method for unfolding a light-blocking device that includes a display device is provided. The light-blocking device is used for a vehicle. The light-blocking device includes a light-blocking portion, a storage portion, and a driving means. The light-blocking portion includes a display portion on a surface on the inside of the vehicle. The storage portion is positioned in a roof portion of the vehicle. The driving means has a first function of unfolding the light-blocking portion in a first position, a second function of unfolding the light-blocking portion in a second position, and a third function of storing the light-blocking portion in a third position inside the storage portion. The first position is a position where the light-blocking portion does not obstruct driver's forward vision. The second position is a position where the light-blocking portion covers 80% or higher of the area of a windshield of the vehicle.

Abstract: An information display device includes a display unit configured to display information about an object such that the information about the object at least partially overlaps with forward view of a user, and a controller configured to control display of the display unit. The controller is configured to estimate or acquire a prospective moving direction of the object, acquire a sight-line frequency representing a frequency with which a sight-line of the user is directed to the object within a prescribed period, determine whether the sight-line frequency is equal to or more than a prescribed frequency threshold, and cause the display unit to display the prospective moving direction of the object at least on condition that the controller determines that the sight-line frequency is less than the frequency threshold.

Abstract: A first condition is set to such a condition of a fuel injection amount of a fuel injection valve and an opening degree of a throttle valve that an air excess ratio in a cylinder becomes greater than or equal to a prescribed value set as a value greater than 1.2 while satisfying a target output of an internal combustion engine. A second condition is set to such a condition of the fuel injection amount and the opening degree of the throttle valve that the air excess ratio in the cylinder becomes 1 or less while satisfying the target output of the internal combustion engine. A controller of the internal combustion engine is configured to obtain the first and second operating conditions that correspond to the target output, and select one of the operating conditions in accordance with the operating situation of the internal combustion engine.

Abstract: A controller for a hydrogen engine controls a hydrogen engine including a selective catalytic reduction (SCR) device installed in an exhaust passage and a urea addition valve that adds urea to exhaust gas flowing through a portion of the exhaust passage upstream of the SCR device. Processing circuitry of the controller executes a reduction process that causes a urea addition amount of the urea addition valve to be smaller when a urea deposition amount of the SCR device is greater than or equal to a prescribed value than when the urea deposition amount is less than the prescribed value. The processing circuitry executes a lean-burn limiting process that sets an air-fuel ratio of an air-fuel mixture to be burned in the hydrogen engine to a value less than or equal to a prescribed lean-burn limiting value while the reduction process is reducing the urea addition amount.

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 apparatus with high display quality is provided. A highly reliable display apparatus is provided. A display apparatus that can easily achieve a higher resolution is provided. The display apparatus includes a first light-emitting device in which a first pixel electrode, a first layer including a first light-emitting layer, and a common electrode are stacked in order, a second light-emitting device in which a second pixel electrode, a second layer including a second light-emitting layer, and the common electrode are stacked in order, and a third light-emitting device in which a third pixel electrode, a third layer including a third light-emitting layer, and the common electrode are stacked in order. The second layer includes a first region overlapping with the first layer and a second region overlapping with the third layer. The first region is positioned over the first layer. The second region is positioned under the third layer.

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 compaction management system includes a position calculation unit that, when a bucket is pressed against a compaction target ground, calculates a position of the bucket, a rolling compaction force calculation unit that, when the bucket is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body, the attitude of the attachment, a pressure of a cylinder, and dimensions of the attachment, a rolling compaction record creation unit that creates a rolling compaction record in which the position calculated by the position calculation unit is associated with the rolling compaction force calculated by the rolling compaction force calculation unit, and a storage control unit that causes a storage device to store the rolling compaction record created by the rolling compaction record creation unit.

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 display driver includes a plurality of DA conversion circuits, amplifiers, and a switch circuit. Each of the DA conversion circuits outputs a gradation reference voltage in a gradation reference voltage group generated by one of gradation reference voltage generating circuits as a gradation voltage. The amplifiers each output a voltage output a voltage obtained by amplifying each gradation voltage as an output voltage. The switch circuit receives an output voltage group output from the amplifiers and a gradation voltage group generated by the respective DA conversion circuits coupled to a specific gradation reference voltage generating circuit. The switch circuit outputs the output voltage group to the display panel when a normal display mode while outputting the gradation voltage group to the display panel when a monochromatic display mode.

Abstract: An electrode of an embodiment includes a porous titanium support and a catalyst layer for electrolysis provided on the porous titanium support and stacked sheet layers and gap layers alternately. A first covering layer including titanium oxide is provided on the porous titanium support on the catalyst layer side. A second covering layer including titanium oxide is provided on the porous titanium support on an opposite side of the catalyst layer. An average thickness of the first covering layer is denoted as D1. An average thickness of the second covering layer is denoted as D2. D1 and D2 satisfies 1 [nm]?D2?D1?20 [nm].

Abstract: A work machine includes: a first posture detection device which detects a posture of an upper slewing body with respect to a lower travelling body; a second posture detection device which detects a posture of a blade; a laser beam receiver which is provided to the upper slewing body and can receive a laser beam emitted from a laser beam emitter; and a calculation unit which calculates a height position of a cutting edge of the blade with respect to a surface to be constructed. The calculation unit calculates the height position of the cutting edge of the blade with respect to the surface to be constructed based on a laser beam receiving position where the laser beam is received by the laser beam receiver, a posture of the upper slewing body with respect to the lower travelling body, and a posture of the blade.

Abstract: An ink jet composition of the present disclosure includes: water; a polyester resin having sulfo groups; and a colorant, the colorant is contained in particles formed from a material containing the polyester resin, and the sulfo groups have a high abundance ratio at a surface of each of the particles as compared to that at a center thereof.

Abstract: A display device with high resolution is provided. A display device with high display quality is provided. The display device includes a substrate, an insulating layer, a plurality of transistors, and a plurality of light-emitting diodes. The plurality of light-emitting diodes are provided in a matrix over the substrate. Each of the plurality of transistors is electrically connected to at least one of the plurality of light-emitting diodes. The plurality of light-emitting diodes are positioned closer to the substrate than the plurality of transistors are. The plurality of light-emitting diodes emit light toward the substrate. Each of the plurality of transistors includes a metal oxide layer and a gate electrode. The metal oxide layer includes a channel formation region. The top surface of the gate electrode is substantially level with the top surface of the insulating layer.

Abstract: A novel information processing device that is highly convenient or reliable is provided. The information processing device includes a sensor portion, a communication portion, a display portion, and an arithmetic device; the sensor portion has a function of obtaining position information, and the communication portion has a function of obtaining map information and legal speed limit information. The arithmetic device identifies first legal speed limit information from the map information on the basis of the position information, the arithmetic device generates first image information including the first legal speed limit information, and the display portion has a function of displaying the first image information.