Sony Corporation

Sony Semiconductor Solutions Corporation

Oki Data Corporation

Sony Group Corporation

Tdk Corporation

Joled Inc.

Arisawa Mfg. Co., Ltd.

Tokyo Women's Medical University

Canon Kabushiki Kaisha

Ken Kikuchi

Takaaki Sugiyama

Yasuo Inoue

Hideto Mori

Takeya Meguro

Toyo Osumi

Tomoya Yano

Takehiro Misonou

Genichiro Oga

Takahiro Kita

Hidehiko Shidara

Masahiro Ito

Masaki Yoshioka

Yoshihiro Kosugi

Hidetaka Honji

Yoshitatsu Okiyama

Junzo Watanabe

Ken Kitamura

Masaru Chibashi

Katsuhiro Tomoda

Akiyoshi Aoyagi

Shinichi Murakami

Masashi Gotoh

Eiji Otani

Hiizu Ohtorii

Yusuke Oyama

Fumiaki Yoshida

Takeshi Itoh

Takuo Kataho

Sadaki Satoh

Hiroshi Morita

Kenji Watanabe

Kazuhiko Ueda

Mitsuyasu Asano

Masao Uyama

Tomohiro Nishi

Hiroaki Matsui

Hisao Sakurai

Hajime Maruta

Ban Kawamura

Eiichi Saito

Masatoshi Niwa

Hiroaki Suzuki

Kenji Matsuda

Keisuke Hashimoto

Hirokazu Imai

Takashi Satoh

Hiroshi Tobita

Norimitsu Ebata

Yuji Sawamura

Atsushi Yasuda

Takayuki Kubota

Kyoichi Totsuka

Yutaka Uzawa

Susumu Otaki

Eiji Nagasaka

A light-emitting device according to an embodiment of the present disclosure includes: a pixel circuit including a light-emitting part; and a gradation controller that performs gradation control. The pixel circuit includes a light emission time controller that controls a light emission time of the light-emitting part, and an amplitude modulator that includes an output transistor coupled in series to the light-emitting part. The gradation controller performs the gradation control by performing, via the light emission time controller, on/off control on the output transistor of the amplitude modulator, and modulation control on the amplitude modulator.

Light-emitting device, method of driving light- emitting device, and electronic apparatus

The present technology relates to a light source apparatus that makes it possible to provide a widely applicable light source apparatus. A light source apparatus includes a transmissive board that transmits light emitted by a light-emitting element, a circuit board that drives the light-emitting element and is joined to the transmissive board, and a light-emitting board that has the light-emitting element and is connected to the circuit board via a first bump. Further, in the light source apparatus, the circuit board and an organic board are configured to be connected by sandwiching the light-emitting board via second bumps. The present technology can be applied to a light source apparatus that emits light.

Light source apparatus

A mounting substrate according to an embodiment of the present technology includes: a wiring substrate (); a plurality of light-emitting elements () arranged in a matrix on the wiring substrate; and a plurality of drive ICs () that are arranged in a matrix on the wiring substrate, and control light emission of the light-emitting elements. The light-emitting elements and the drive ICs are mounted on a same surface. The wiring substrate includes a plurality of first wiring lines () on a mounting surface where the light-emitting elements and the dive ICs are mounted. The first wiring lines electrically couple the light-emitting elements to the drive ICs.

Mounting substrate and electronic apparatus

The present disclosure relates to a ranging device and a ranging module that allow a light emitting element and a light receiving element to be integrated with a simple structure. A light emitting substrate having a light emitting element is connected to a circuit substrate through first bumps, and a light receiving substrate having a single light emitting element or light emitting elements that are two-dimensionally disposed is connected to the circuit substrate through second bumps. The optical axis of a lens, the optical axis of the light emitting element, and the center axis of the light receiving element are disposed on substantially the same axis. The present technique can be applied to a ranging device that carries out ranging, and so forth.

Ranging device and ranging module

A display device of the present disclosure is provided with a pixel circuit that includes a light-emitting element; a current modulator that controls a current value flowing through the light-emitting element; a current breaker that interrupts a current flowing through the light-emitting element; and a gray-scale controller that controls the current modulator and the current breaker to perform gray-scale control. The gray-scale controller discretely controls a light emission duty of the light-emitting element through the current breaker, and controls, through the current modulator, the current value flowing through the light-emitting element in accordance with the light emission duty of the light-emitting element.

Display device, method of driving display device, and electronic apparatus

A display apparatus according to an embodiment of the present disclosure includes: a display panel including a plurality of pixels; and a drive device that outputs a driving signal to the display panel. The driving signal causes one of the pixels to emit light many times by an active PWM drive method in a 1-frame period.

Drive device and display apparatus

A display apparatus includes pixels arranged in a two-dimensional matrix pattern, each of which including a light-emitting unit and a drive circuit that drives the unit and includes a comparator circuit that compares a control pulse with potential based on signal voltage and outputs predetermined voltage based on the result, a transistor driving the unit in response to the predetermined voltage, and a current source that supplies current to the unit during driving of the transistor, includes a current-source transistor, a capacity unit connected to a gate electrode of the current-source transistor, a differential amplifier that detects a differential between voltage based on reference constant current and reference voltage, and a transistor controlling the voltage based on reference constant current depending on current flowing through the current-source transistor, and controls gate potential of the current-source transistor on the basis of output of the amplifier in synchronization with a scanning signal.

Display apparatus

A mounting substrate according to an embodiment of the present technology includes: a wiring substrate (); a plurality of light-emitting elements () arranged in a matrix on the wiring substrate; and a plurality of drive ICs () that are arranged in a matrix on the wiring substrate, and control light emission of the light-emitting elements. The light-emitting elements and the drive ICs are mounted on a same surface. The wiring substrate includes a plurality of first wiring lines () on a mounting surface whre the light-emitting elements and the dive ICs are mounted. The first wiring lines electrically couple the light-emitting elements to the drive ICs.

A light source device according to the present disclosure includes: a first terminal, a second terminal, a third terminal, and a fourth terminal; a first light-emitting element that is disposed in a first path from the first terminal to the second terminal, includes a first electrode of a first type and a second electrode of a second type coupled to the second terminal, and emits first basic color light; a second light-emitting element that is disposed in a second path from the second terminal to the third terminal, includes a first electrode of the first type coupled to the second terminal and a second electrode of the second type, and emits second basic color light; and a third light-emitting element that is disposed in a third path from the second terminal to the fourth terminal, includes a first electrode of the first type coupled to the second terminal and a second electrode of the second type, and emits third basic color light.

Light source device, light-emitting device, and display device

A comparator circuit according to the present disclosure includes a first switch section that selectively takes in a signal voltage, a second switch section that selectively takes in a control waveform, a differential amplifier including a non-inverted input end connected to each of output ends of the first switch section and the second switch section, a capacity section including one end connected to an inverted input end of the differential amplifier and the other end supplied with a reference voltage, and a third switch section that selectively short-circuits the inverted input end and an output end of the differential amplifier.

Comparator circuit, A/D conversion circuit, and display apparatus

A sample-and-hold circuit of the disclosure includes: a differential pair that includes a first MOS transistor and a second MOS transistor, in which respective source terminals of the first MOS transistor and the second MOS transistor are interconnected to a specified node, and an input signal is input to a gate terminal of the first MOS transistor; a capacitor that is coupled to a gate terminal of the second MOS transistor, and samples and holds the input signal; a switch transistor that has a source terminal coupled to the capacitor and the gate terminal of the second MOS transistor, and causes the capacitor to sample and hold the input signal upon application of a predetermined ON voltage; and an ON-voltage control transistor that couples a gate terminal of the switch transistor to the specified node when causing the input signal to be sampled and held.

Sample- and-hold circuit and display device

There is provided a mounting substrate that makes a seam more inconspicuous when a plurality of mounting substrates are tiled, and an electronic apparatus including the mounting substrate. The mounting substrate includes a wiring substrate, a plurality of pixels () arranged in a matrix in a pixel region of the wiring substrate, and a plurality of drivers (A) that are disposed in the pixel region and select the pixels in units of two or more pixels. Each of the pixels includes an optical element that emits or receives light, and a pixel circuit that controls light emission or light reception of the optical element. One or more of the plurality of drivers are assigned to each pixel row or every plurality of pixel rows.

A comparator unit includes: a comparison section configured to compare a control pulse with an electric potential based on a signal voltage; and a control section configured to control, based on the control pulse, operation and non-operation of the comparison section.

Comparator unit, display, and method of driving display

A comparator circuit according to the present disclosure includes: a first switch section that selectively takes in a signal voltage; a second switch section that selectively takes in a control waveform; a differential amplifier including a non-inverted input end connected to each of output ends of the first switch section and the second switch section; a capacity section including one end connected to an inverted input end of the differential amplifier and the other end supplied with a reference voltage; and a third switch section that selectively short-circuits the inverted input end and an output end of the differential amplifier.

A light emitting device driving circuit according to the present disclosure includes a sawtooth waveform generating unit for generating a sawtooth waveform voltage having a sawtooth waveform voltage change based on at least two reference signals to be input and a comparison unit for comparing an analog signal voltage with the sawtooth waveform voltage. The light emitting device driving circuit drives a light emitting device based on the comparison result of the comparison unit. Accordingly, a comparison operation using a sawtooth waveform voltage having a waveform which is not disturbed is performed.

Light emitting device driving circuit, display, and A/D conversion circuit

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Tokyo, Japan

Ken Kikuchi