Seiko Epson Corporation

Seiko Espon Corporation

Seiko Epson Corportation

Takayuki Kitazawa

Takeshi Nomura

Yuma Iwahara

Hideki Tanaka

Toshiyuki Kasai

Shin Fujita

Eiji Kanda

Takehiko Kubota

Kazuma Kitadani

Masato Nishizawa

Yuya Maruyama

Kensuke Ogasawara

A position detection system includes a position detection apparatus and a server. The position detection apparatus includes an imaging apparatus that captures an image of an operation surface, a processor that detects a pointed position at which a pointing element is pointing on the operation surface by using a learned model based on captured images captured by the imaging apparatus, and a first communication apparatus that transmits the captured images to the server apparatus. The server apparatus includes at least one processor that detects a first image that does not contain an image of the pointing element out of the captured images, generates learning data containing the first image, and relearns the learned model by using the learning data.

Position detection system, position detection apparatus, and position detection method

A position detection method of detecting a position in an operation surface pointed by a pointing element, the method including irradiating with infrared light toward the operation surface, obtaining a first and second taken image calibrated with respect to the operation surface by imaging the operation surface with a first and second camera configured to take an image with the infrared light, forming a difference image between the first taken image and the second taken image, extracting an area in which an amount of disparity between the first taken image and the second taken image is within a predetermined range out of the difference image as a candidate area in which an image of the pointing element is included, detecting an area corresponding to a tip position of the pointing element from the candidate area extracted based on a shape of the pointing element, and outputting, based on the area corresponding to a tip position, information representing a pointing position of the pointing element in the operation surface and whether or not the pointing element had contact with the operation surface.

Position detection method, position detection device, and position detection system

A display apparatus includes a camera that outputs live motion images, a recorded motion image output section that outputs recorded motion images produced, a reversed motion image formation section that forms reversed motion images produced by reversing the live motion images, a skin color image extraction section that extracts images having a skin color from the live motion images and reverses the extracted images to form skin color reversed motion images, a motion image display section having a first display section and a second display section, and a display content setting section that sets display contents that are contents to be displayed in the first display section and the second display section, and the display content setting section selects contents to be displayed motion image display section from the live motion images, the recorded motion images, the reversed motion images, and the skin color reversed motion images.

Display apparatus, display method, and program

An electro-optical device includes a scanning line and a data line intersecting each other, a pixel circuit provided at a position corresponding to an intersection of the scanning line and the data line, and a power supply wiring line that supplies a given potential. The pixel circuit includes a light emitting element and a driving transistor configured to control a current flowing through the light emitting element. A gate electrode of the driving transistor is electrically connected via a first relay electrode to a given node. The first relay electrode is formed in the same layer as the power supply wiring line and the data line. The first relay electrode is surrounded on at least three sides by the power supply wiring line.

Electro-optical device and electronic apparatus

A pixel circuitincludes a driving transistor, a light-emitting element, and a voltage limiter circuit. The transistor and the light-emitting element are connected in series between power supply. The transistor allows an electric current that is dependent on a voltage between its gate and source to flow through the light-emitting element. The light-emitting element emits light at a luminance that is dependent on an electric current that flows between two terminals. The voltage limiter circuit performs voltage limiting in such a way as to ensure that a voltage between the drain of the transistor and the source thereof does not exceed a predetermined value.

Display device having a voltage limiting circuit to ensure that the voltage between the drain and source of a pixel's driving transistor does not exceed a predetermined value

An electro-optic device including a pixel circuit that includes an electro-optic element and a driving transistor; a first data generation unit that, during a first period when image display operation is not performed, detects a temperature and generates first data which allows control of brightness of an image in accordance with the detected temperature; and a luminance control unit that, during a second period when image display operation is performed, performs control of luminance of the electro-optic element on the basis of the first data which is generated during the first period.

Electro-optic device and electronic device

An electro-optical device includes a scanning line and a data line intersecting each other, a pixel circuit provided at a position corresponding to an intersection of the scanning line and the data line, and a power supply wiring line that supplies a given potential. The pixel circuit includes a light emitting element and a driving transistor configured to control a current flowing through the light emitting element. A gate electrode of the driving transistor is electrically connected via a first relay electrode to a given node. The first relay electrode is formed in the same layer as the power supply wiring line and the data line. The first relay electrode is surrounded on at least three sides by the power supply line.

An active-matrix-type light-emitting device includes: a pixel circuit including a light-emitting element, a driving transistor that drives the light-emitting element, a holding capacitor whose one end is connected to the driving transistor and which stores electric charges corresponding to written data, at least a control transistor that controls an operation associated with writing of data into the holding capacitor, and an emission control transistor; a first scanning line for controlling ON/OFF of the control transistor and a second scanning line for controlling ON/OFF of the emission control transistor; a data line through which the written data is transmitted to the pixel circuit; and a scanning line driving circuit which drives the first and second scanning lines and in which a current drive capability associated with the second scanning line is set to be lower than a current drive capability associated with the first scanning line.

Active-matrix-type light-emitting device, electronic apparatus, and pixel driving method for active-matrix-type light-emitting device

An electro-optical device includes a first pixel circuit having a first light emitting element; a second pixel circuit having a second light emitting element arranged adjacent to the first light emitting element along a first direction; a first data line arranged along a second direction crossing the first direction, the first data line being electrically connected to the first pixel circuit; a second constant potential wiring line arranged along the second direction, the second constant potential wiring line being electrically connected to the second pixel circuit; a wiring line connected to the second constant potential wiring line. The first data line and the wiring line overlap when seen from a third direction perpendicular to the first direction and to the second direction.

An electro-optical device includes a first pixel circuit which is disposed so as to correspond to each intersection between a scanning line and a first data line, a second pixel circuit which is disposed so as to correspond to each intersection between a scanning line and a second data line, a signal line, a selection section, a driving circuit. In a first selection period, the selection section is operated such that the first data line and the second data line are electrically connected to the signal line. In the second selection period, the selection section is operated such that the second data line is electrically connected to the signal line. In a writing period, the first data potential is supplied to the first pixel circuit and the second data potential is supplied to the second pixel circuit.

Electro-optical device, electronic apparatus, and method of driving electro-optical device

A unit circuit includes an electro-optical element, a first capacitive element, a second capacitive element, a third capacitive element, a drive transistor, a first switching element, an initialization unit, and a compensation unit. The electro-optical element emits an amount of light in accordance with a magnitude of a drive current. The first capacitive element includes a first electrode and a second electrode, the first electrode is electrically connected to a first node, and the second electrode is capable of receiving a fixed potential. The second capacitive element includes a third electrode and a fourth electrode, the third electrode is electrically connected to a second node, and the fourth electrode is capable of receiving a fixed potential. The third capacitive element includes a fifth electrode and a sixth electrode, the fifth electrode is electrically connected to the first node, and the sixth electrode is electrically connected to the second node. The drive transistor includes a gate, a source, and a drain and outputs the drive current in a driving period. The gate thereof is electrically connected to the second node. In a data writing period, the first switching element is in an on state and supplies to the first node a data potential supplied via a data line. The initialization unit causes the third capacitive element to discharge charges stored therein in an initialization period. The compensation unit electrically connects the source and the drain of the drive transistor together in a compensation period.

Unit circuit, electro-optical device, and electronic apparatus

A light-emitting device has a plurality of pixel circuits arranged in one direction, each of the plurality of pixel circuits having a light-emitting element that emits light according to the amount of driving current, a driving transistor that supplies the driving current to the light-emitting element, a holding transistor that supplies a data signal supplied via a data line to the driving transistor, and a connecting line that connects the driving transistor to the holding transistor. The holding transistor, the light-emitting element, and the driving transistor are arranged in a direction crossing the arrangement direction of the plurality of pixel circuits. The light-emitting element is provided between the holding transistor and the driving transistor.

Light-emitting device and image forming apparatus

A line head includes pixel circuits each of which has a plurality of light-emitting elements and circuit elements arranged in a line, and which allow the light-emitting elements to selectively emit light, based on selection signals and data signals; data lines that are arranged adjacent to the pixel circuits along one side of the pixel circuits and to which the data signals are supplied to the pixel circuits; and a selection circuit that generates the selection signals.

Line head and image forming apparatus

A line head includes pixel circuits each of which has a plurality of light-emitting elements and circuit elements arranged in a line, and that make the light-emitting elements emit light selectively, based on selecting signals and data signals; selecting circuits that generate the selecting signals based on clock signals input through clock signal lines; data lines that supply data signals to the pixel circuits; and a conductive line having low impedance, arranged in the vicinity of the clock signal line.

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Suwa, Japan

Takayuki Kitazawa