Canon Kabushiki Kaisha

Hiromasa Tsuboi

Takehiko Soda

Masahiro Kobayashi

Yoichi Wada

Yasushi Matsuno

Takahiro Akiyama

Michiko Johnson

Shinya Igarashi

Mizuki Nagasaki

Akihito Komazawa

Tetsuro Yamamoto

Mahito Shinohara

Fumihiro Inui

Junji Iwata

Yu Maehashi

Shoji Kono

Yasuharu Ota

Ginjiro Toyoguchi

Yoichiro Handa

Tomoya Sasago

Daichi Seto

Masahiko Mizoguchi

Hideyuki Ito

A light-emitting device includes a plurality of light-emitting elements and a plurality of pixel circuits. The plurality of pixel circuits each includes a drive transistor configured to drive a corresponding one of the plurality of light-emitting elements, a write transistor configured to write a signal to a gate of the drive transistor, and a light emission control transistor configured to control connection between the gate of the drive transistor and a power supply. The light-emitting device includes a first control line for controlling the write transistor, a second control line for controlling the light emission control transistor, a first circuit configured to incline a signal waveform of the first control line, and a second circuit configured to incline a signal waveform of the second control line.

Light-emitting device having control connection between gate of drive transistor and power supply, photoelectric conversion device, electronic apparatus, lighting device and moving body

A display apparatus comprising a substrate in which a plurality of pixels are arranged is provided. Each of the plurality of pixels comprises a light emitting element arranged above a first surface of the substrate, and a light receiving element arranged between the first surface and a second surface of the substrate on an opposite side of the first surface. The light emitting element comprises a first electrode, a second electrode arranged between the first surface and the first electrode, and a light emitting layer arranged between the first electrode and the second electrode. In an orthogonal projection with respect to the first surface, the second electrode and the light receiving element at least partially overlap each other.

Display apparatus, photoelectric conversion apparatus, electric equipment, illumination apparatus, moving body, and wearable device

An apparatus includes a plurality of pixels arranged in an array on a substrate, the plurality of pixels each including a light emitting element, a first transistor, and a second transistor, a drain region of the first transistor being connected to an anode of the light emitting element, a drain region or a source region of the second transistor being connected to a gate electrode of the first transistor. In a plan view perpendicular to the substrate, a length of a current path from the first region to a gate electrode of the second transistor is greater than a length of a current path from a third region to the gate electrode of the second transistor.

Apparatus, display apparatus, conversion apparatus, device, illumination apparatus, and moving body

An apparatus includes a pixel that includes a current path including a light emitting element and a first transistor, a second transistor, and a third transistor connected to a signal wire. One of source and drain regions of the second transistor is connected to one node of the light emitting element and a first power supply. One of source and drain regions of the third transistor is connected to a gate electrode of the first transistor. An isolation portion is disposed between a first conductivity type first diffusion region that makes up one of the source and drain regions of the second transistor and a first conductivity type second diffusion region that makes up one of the source and drain regions of the third transistor. A depth of the first diffusion region is greater than a depth of the second diffusion region.

Light emitting apparatus

A display device in which a plurality of pixels are arranged in an array is provided. Each of the plurality of pixels comprises a current path that includes a light emitting element and a first transistor, and a second transistor for transmitting a luminance signal. The first transistor comprises diffusion regions arranged in the current path, and a gate electrode to which the luminance signal is transmitted from the second transistor. The diffusion regions are of a first conductivity type, and the gate electrode is of a second conductivity type opposite to the first conductivity type.

Display device and electronic device

A light emitting device includes pixel circuits arranged to form rows and columns and each including a light emitting element, signal lines each extending in a column direction and configured to supply a pixel signal to the pixel circuits, row selection lines each extending in a row direction and configured to supply a row selection signal to the pixel circuits, and column selection lines each extending in the column direction and configured to supply a column selection signal to the pixel circuits. At least one of the pixel circuits includes a light emission control circuit configured to allow the light emitting element of a pixel circuit indicated by the row selection signal and the column selection signal to emit light in a brightness according to the pixel signal that is being supplied to the pixel circuit.

Light emitting device, control method thereof, photoelectric conversion device, electronic apparatus, illumination device, and moving body

A light emitting device in which a pixel is arranged is provided. The pixel includes a light emitting element, a first transistor configured to supply, to the light emitting element, a current corresponding to a luminance signal, and a second transistor configured to supply the luminance signal to a gate electrode of the first transistor. Diffusion regions respectively functioning as a source region and a drain region of the second transistor are of a first conductivity type, and a gate electrode of the second transistor is of a second conductivity type opposite to the first conductivity type.

Light emitting device, display device, photoelectric conversion device, electronic apparatus, illumination device, and moving body

A light emitting device comprising a plurality of pixels is provided. Each of the plurality of pixels includes a light emitting element, a first transistor having a drain region connected to the light emitting element, and a second transistor having a drain region connected to a gate electrode of the first transistor. The plurality of pixels include a first pixel and a second pixel, which are adjacent to each other in a first direction. A source region of the second transistor of the first pixel and a source region of the second transistor of the second pixel share one diffusion region, and a source region, a gate electrode, and the drain region of the first transistor of the first and second pixels are sequentially arranged in one of a positive direction and a negative direction in the first direction.

Light emitting device, display device, photoelectric conversion device, electronic device, illumination device, and mobile device with first transistor connected to light emitting element anode, second transistor connected to first transistor gate electrode, and third transistor connected to first transistor

The light emitting device comprises: a plurality of pixels, each having a light-emitting element, a driving transistor configured to drive the light-emitting element, a capacitor configured to hold a threshold voltage of the driving transistor, a signal line, a first switch configured to connect the signal line and a control electrode of the driving transistor, and a second switch configured to connect a first main electrode of the driving transistor and a predetermined node; and a driving circuit configured to drive the signal line. In a preparation period in which the threshold voltage is held in the capacitor, the first switch is controlled to be on and the second switch is controlled to be off, and the driving circuit drives the signal line at a voltage level selected from a plurality of different voltage levels.

Light emitting device, photoelectric conversion device, electronic device, lighting device, and mobile body

A light-emitting apparatus comprising pixels that each includes a light-emitting element and a drive transistor for supplying a current according to a luminance signal to the light-emitting element and a signal supply circuit supplying the luminance signal to the drive transistor. The apparatus operates display modes including a first display mode and a second display mode in which a maximum luminance is higher than in the first display mode. The signal supply circuit, in a case where the display data has a maximum luminance value, supplies to the drive transistor, as the luminance signal, different voltages in the first and second display modes, and in a case where the display data has a minimum luminance value, supplies to the drive transistor, as the luminance signal, different voltages in the first and second display modes.

Light-emitting apparatus, display apparatus, photoelectric conversion apparatus electronic device, illumination apparatus, moving body, and wearable device

A light emitting apparatus comprising a plurality of pixels with different light emitting colors, each of the plurality of pixels includes a light-emitting element configured to emit light with one of at least three different light emitting colors, a driving transistor configured to supply a current to the light-emitting element in accordance with a voltage supplied to a gate, a write transistor configured to supply a signal voltage from a signal line to the gate of the driving transistor, and a capacitance at a connection portion between the driving transistor and the write transistor, wherein the capacitance is different for each light emitting color, and is larger in a pixel of a light emitting color in which a peak current flowing through the light-emitting element is larger.

Light emitting apparatus, imaging apparatus, electronic apparatus, illumination apparatus, and mobile apparatus

Light emitting device for display device miniaturizing pixels and suppressing degradation in image quality

A light emitting device comprising a plurality of pixels arranged on a substrate to form a plurality of columns parallel to a first direction and a plurality of rows parallel to a second direction orthogonal to the first direction is provided. Each of the plurality of pixels includes a light emitting element, and a driving circuit configured to drive the light emitting element, the substrate includes a transistor region in which a plurality of transistors that form the driving circuit are arranged, the plurality of pixels include a first pixel and a second pixel, which are adjacent to each other in the first direction, and a virtual line parallel to the second direction, which passes through the transistor region of the first pixel, passes through the transistor region of the second pixel.

Light emitting device, display device, photoelectric conversion device, electronic device, and wearable device

A light emission apparatus is provided. The apparatus comprises a plurality of pixels that each include a light emission element, and a signal supply unit that supplies to each of the plurality of pixels a signal voltage that accords with inputted image data. Each of the plurality of pixels comprises a first transistor configured to control an amount of current that flows in the light emission element, and a second transistor disposed between a signal line on which the signal voltage is supplied and a gate electrode of the first transistor and, in an on state, write in the gate electrode the signal voltage. The signal supply unit adjusts the signal voltage in accordance with a frame rate.

Light emission apparatus and electronic device

A display device including pixels is provided. Each pixels includes a light emitting element, a first transistor configured to supply current to the light emitting element, a second transistor configured to control emission of the light emitting element, a first capacitor including a first electrode and a second electrode, and a second capacitor including a third electrode and a fourth electrode. The first electrode is connected to a gate electrode of the first transistor. The second and third electrodes are connected to a main terminal of the first transistor. The fourth electrode is connected to a main terminal of the second transistor. The first capacitor is arranged between the substrate and the second capacitor. At least a portion of an outer edge of the first electrode is arranged more to an inside than that of the third electrode.

Growing community of inventors

Tama, Japan

Hiromasa Tsuboi