Abstract: An image forming apparatus includes an optical sensor configured to measure reflected light from a test image on the image carrier. The optical sensor includes a printed circuit board, with a light-emitting element provided on a first surface of the printed circuit board, and with the light-emitting element being configured to irradiate the test image on the image carrier with light. The optical sensor also includes a light-receiving element provided on the first surface of the printed circuit board, with the light-receiving element being configured to receive the reflected light from the test image on the image carrier. A connector is provided on a second surface of the printed circuit board opposite to the first surface of the printed circuit board, with a cable for controlling the optical sensor being connected to the connector.

Abstract: The present application discloses a current-driven display device that can perform accurate external compensation in consideration of a temperature distribution in a display panel while preventing the configuration from being complicated. A display portion of an organic EL display device is provided with a plurality of temperature detection circuits in addition to pixel circuits arranged in a matrix. A data-side drive circuit measures a current flowing through a transistor in each temperature detection circuit.

Abstract: A developing device includes a developer carrying member configured to carry a developer, containing toner and a carrier, for developing an electrostatic latent image formed on an image bearing member, a developer container configured to accommodate the developer, and an oscillation circuit including a resonance circuit including a coil and a circuit portion containing a capacitor and configured to oscillate a signal for detecting a toner concentration of the developer accommodated in the developer container. The coil is formed integrally with the developer container by a metal film, and the coil is disposed on an inner wall surface of the developer container.

Abstract: A printed circuit board has a first mounting surface and a second mounting surface. A light-emitting element and a light-receiving element are mounted on the first mounting surface. An electronic component for driving the light-emitting element is mounted on the second mounting surface. A supporting member supports the printed circuit board. The supporting member has a through-hole in which the electronic component is inserted when the printed circuit board is supported by the supporting member.

Abstract: A display device includes a substrate with a display area and a bending area; and a luminance sensor. The display area and the bending area each include a pixel circuit including a light-emitting element that is self-luminous. The bending area is bent from the display area. The luminance sensor measures luminance of the light-emitting element in the bending area.

Abstract: A display device according to the disclosure includes a display unit including a plurality of electro-optical elements as display elements, luminance and transmittance of which are controlled by a current, a luminance measurement unit configured to measure luminance of the display elements of the display unit in a blocked state, and a correction value arithmetic operation unit configured to compensate a data signal provided to each of pixels of the display elements on the basis of a measurement result obtained by the luminance measurement unit. This enables accurate compensation in units of pixels.

Abstract: A developing device includes a developer carrying member for carrying a developer, containing toner and a carrier, for developing an electrostatic latent image formed on an image bearing member; a developer container for accommodating the developer; and an oscillation circuit including a resonance circuit constituted by a coil and a circuit portion containing a capacitor and for oscillating a signal for detecting a toner concentration of the developer accommodated in the developer container. The coil is formed on an inner wall surface of the developer container.

Abstract: The present application discloses a current-driven display device that can perform accurate external compensation in consideration of a temperature distribution in a display panel while preventing the configuration from being complicated. A display portion of an organic EL display device is provided with a plurality of temperature detection circuits in addition to pixel circuits arranged in a matrix. A data-side drive circuit measures a current flowing through a transistor in each temperature detection circuit.

Abstract: A display device includes a display panel provided with a display region including a plurality of self light-emitting elements, a light-transmitting protective member that covers a surface of the display panel, a housing that houses the display panel and the protective member, and a luminance sensor provided so as not to overlap with the display region. A portion of light from the self light-emitting element positioned inside the display region and adjacent to the luminance sensor is guided to the luminance sensor.

Abstract: A printed circuit board has a first mounting surface and a second mounting surface. A light-emitting element and a light-receiving element are mounted on the first mounting surface. An electronic component for driving the light-emitting element is mounted on the second mounting surface. A supporting member supports the printed circuit board. The supporting member has a through-hole in which the electronic component is inserted when the printed circuit board is supported by the supporting member.

Abstract: An information processing device includes a display control unit that, when at least one NFC antenna has performed close-range wireless communication, effects a display of a communication prompter image that indicates the position of an NFC antenna which is different from the at least one NFC antenna and that prompts for close-range wireless communication with the different NFC antenna.

Abstract: The present disclosure improves the speed at which communication is started by an antenna that is to carry out communication from among a plurality of antennas for near field communication. An information processing device (10) is provided with a touch panel (120), a plurality of NFC antennas (110), and a control unit (130) for controlling the NFC antennas, and starts driving a drive target antenna which is one or more NFC antennas that correspond to a contact position or proximity position of an object detected by the touch panel, from among the plurality of NFC antennas.

Abstract: Notification of a situation in which communication with another terminal is not possible is expressly given to a user. A display apparatus (1) includes an NFC communication unit (112), an NFC controller (13) configured to detect a mobile apparatus (100), a communication mode determination unit (142) configured to determine, when the mobile terminal is detected, whether or not communication with the mobile apparatus based on a P2P mode via an NFC communication unit is possible, and a notification control unit (144) configured to notify that the communication is not possible when it is determined that the communication is not possible.

Abstract: An information processing device includes a display control unit that, when at least one NFC antenna has performed close-range wireless communication, effects a display of a communication prompter image that indicates the position of an NFC antenna which is different from the at least one NFC antenna and that prompts for close-range wireless communication with the different NFC antenna.

Abstract: A display device according to the disclosure includes a display unit including a plurality of electro-optical elements as display elements, luminance and transmittance of which are controlled by a current, a luminance measurement unit configured to measure luminance of the display elements of the display unit in a blocked state, and a correction value arithmetic operation unit configured to compensate a data signal provided to each of pixels of the display elements on the basis of a measurement result obtained by the luminance measurement unit. This enables accurate compensation in units of pixels.

Abstract: An unwanted process is prevented from being performed due to near field communication based on a process performed via an antenna which is not intended by a user. An information processing apparatus (1) includes a communication antenna determination unit (22) configured to, when a proximity state of an NFC terminal (10) to an NFC antenna (12) continues, determines that the NFC antenna (12) is an NFC antenna (12) that performs near field communication for executing a prescribed process.

Abstract: A user is guided with a simple configuration so that near field communication is performed. An information processing device (1) includes an NFC antenna (520) configured to perform near field communication with an NFC terminal (100), and a display unit (53) configured to display a guide region (Ai). The guide region (Ai) serves as a guide for a communication-enabling region. The display unit (53) displays the guide region (Ai) such that the guide region (Ai) is included in the communication-enabling region (B) and the guide region (Ai) is smaller than the communication-enabling region (B).

Abstract: An information processing apparatus more reliably performs communications with an information communication terminal. The information processing apparatus includes NFC antennas that perform near field communication with an NFC tag and an NFC control unit that controls a sequential order in accordance with which the NFC antennas are scanned.

Abstract: Provided is a light-emitting device and the like in which a light source emits light on the basis of information obtained through communications and the light thus emitted is easy for a user to visually recognize. A light-emitting device includes an LED, a light guide plate, a transparent NFC antenna sheet, and an NFC antenna. The transparent NFC antenna sheet and the NFC antenna are disposed on a principal surface or a backside surface of the light guide plate. At least some part of the light guided by the light guide plate exits out through the principal surface. The LED emits light on the basis of identification information obtained through communications via the NFC antenna sheet and the NFC antenna.

Abstract: A user is guided with a simple configuration so that near field communication is performed. An information processing device (1) includes an NFC antenna (520) configured to perform near field communication with an NFC terminal (100), and a display unit (53) configured to display a guide region (Ai). The guide region (Ai) serves as a guide for a communication-enabling region. The display unit (53) displays the guide region (Ai) such that the guide region (Ai) is included in the communication-enabling region (B) and the guide region (Ai) is smaller than the communication-enabling region (B).