Sony Corporation

Sanyo Electric Co., Ltd.

Samsung Display Co., Ltd.

Japan Display West Inc.

Samsung Electronics Co., Ltd.

Japan Display Inc.

Sony Semiconductor Solutions Corporation

Epson Imaging Devices Corporation

Sanyo Epson Imaging Devices Corp.

Michiru Senda

Ryoichi Yokoyama

Tsutomu Tanaka

Tsutomu Harada

Yasuhiro Yamada

Makoto Takatoku

Hiroyuki Horibata

Hiroshi Mizuhashi

Yoshiharu Nakajima

Yuichiro Minami

Gen Koide

Kazunori Yamaguchi

Ryoichi Tsuzaki

Mitsuru Tateuchi

Keiichiro Ishihara

Toshikazu Maekawa

Ryoichi Ito

Yusuke Tsutsui

Go Yamanaka

Masayuki Koga

Koji Hirosawa

Isao Akima

Shinji Fujimoto

Yasushi Miyajima

Seiichiro Jinta

Masanobu Ikeda

Shinichi Watanabe

Hironori Kikkawa

Masayuki Katakura

Daisuke Takama

Keiichi Sano

Hideyuki Omori

Masahiro Okuyama

Makoto Watanabe

Tomoro Yoshinaga

Daisuke Kawazoe

Tsutomu Uemoto

Koji Marumo

Taro Ichitsubo

Kenya Uesugi

Kuni Yamamura

Kota Mase

Takayuki Kanda

Naoto Munemura

Yoshikazu Sasaki

The object of the present invention is to suppress power consumption. A display device includes: a first holding unit provided in a pixel and configured to hold an image signal; and a PWM signal generation unit provided in the pixel and configured to generate a pulse width modulation (PWM) signal corresponding to the image signal on the basis of the image signal and count signal held in the first holding unit.

Display device with pulse width modulation signal generation unit

Provided is a drive circuit that includes a gradation voltage generation unit that generates a plurality of gradation voltages that can be supplied to a signal line. The drive circuit further includes a voltage selector that selects, from among the plurality of gradation voltages, whether to supply a gradation voltage of the same voltage level as an assumed gradation voltage to a signal line or to supply a gradation voltage close to the assumed gradation voltage to a signal line.

Drive circuit and display device for writing of signal lines

A display apparatus includes an addition section, a conversion section, and a control section. The addition section adds a dither signal to a digital image signal for each of a plurality of color components, the digital image signal being generated on a basis of each of the plurality of color components different from each other, and inputted in predetermined order for each sub-frame included in a frame. The conversion section performs digital to analog conversion of converting the digital image signal to which the dither signal is added into an analog image signal. The control section controls a pattern of the dither signal, at each predetermined cycle including a plurality of the sub-frames, depending on the order in which the digital image signal for each of the color components is inputted, within the frame.

Display apparatus and driving method of display apparatus

There is provided a radiation image pickup unit including: a plurality of pixels each configured to generate a signal charge based on a radiation; a device substrate including a photoelectric conversion element for each pixel; a wavelength conversion layer provided on a light incident side of the device substrate, and configured to convert a wavelength of the radiation into other wavelength; and a partition wall separating the wavelength conversion layer for each pixel. The radiation image pickup unit is configured to allow a gap between the wavelength conversion layer and the device substrate to be equal to or larger than a threshold or equal to or smaller than the threshold, the threshold being preset based on a spatial frequency of an image pickup target.

Radiation image pickup unit and radiation image pickup display system

There is included: a light receiving device configured to receive light and convert the received light into a light detection signal; a pixel transistor connected to the light receiving device and configured to control connection between the light receiving device and a signal line; a low-pass filter configured to be applied with respect to the light detection signal; an A-D converter configured to convert an output signal of the low-pass filter into digital data; and a sequencer configured to, prior to causing the A-D converter to operate to output the digital data, control the pixel transistor to be in an ON state and thereby maintain the light receiving device to be connected to the signal line, in a state in which the low-pass filter is caused to function effectively with respect to the light detection signal.

Imaging unit and imaging method

An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight is emitted to a proximity object from an I/O display panel, an electric charge is accumulated in image pickup pixels in accordance with total light amount, including reflected light originating from the backlight and external environment light. Moreover, when the illumination light is not emitted, a discharging electric charge is released from the image pickup pixels in accordance with the amount of environment light. Thereby, an environment light component is subtracted from an image pickup signal obtained from each of the image pickup pixels, so object information about the proximity object is obtained without influence of the environment light. Moreover, in a light reception drive circuit, fewer frame memories for producing a picked-up image from the image pickup signal are necessary.

Image pickup device, display-and-image-pickup device, electronic apparatus and method of detecting an object

Disclosed herein is a photoelectric conversion element including: a first semiconductor layer of a first conductivity type provided above a substrate; a second semiconductor layer of a second conductivity type provided in a higher layer than the first semiconductor layer; a third semiconductor layer of a third conductivity type provided between the first and second semiconductor layers and lower in electrical conductivity than the first and second semiconductor layers; and a light-shielding layer provided between the substrate and first semiconductor layer.

Photoelectric conversion element and photoelectric converter

Provided is an image pickup device that includes: pixels each including a photoelectric conversion element and one or more switching elements; control lines provided to perform open/close control of at least one first switching element; a buffer circuit provided for each control line, and configured to output a voltage to each control line; second switching elements each provided between corresponding one of the control lines and a power source of the corresponding buffer circuit; and a switch control circuit that is, upon image pickup driving, configured to control one of the second switching elements, provided between a defect holding line that includes an electrically short-circuited part in the plurality of control lines and the power source of the buffer circuit of the defect holding line, to be in an open state, and configured to control another one of the second switching elements to be in a closed state.

Image pickup device and image pickup display system

A sensor device includes sensor elements two-dimensionally arranged and a sensor driving section driving the sensor elements. Each of the sensor elements includes a photoelectric conversion element generating electric charge according to an amount of received light, a charge storage section connected to one end of the photoelectric conversion element and storing electric charge generated by the photoelectric conversion element, a readout section reading either a voltage value resulted from the electric charge in the charge storage section or the stored electric charge, to output the read voltage value or the read electric charge and a reset section resetting the electric charge in the charge storage section through supplying a predetermined reset voltage to the charge storage section. The sensor driving section controls the reset section so that the predetermined reset voltage is continuously or intermittently supplied to the charge storage section over a period exceeding one horizontal scan period.

Sensor device, method of driving sensor element, display device with input function, electronic unit and radiation image pickup device

An image pickup unit includes: an image pickup section including a plurality of pixels, the plurality of pixels each including a photoelectric converter device and a field-effect transistor; and a driving section reading out a signal charge with use of the transistor, the signal charge being accumulated in each of the plurality of pixels. The driving section turns off the transistor by applying an off-voltage to the transistor, the off-voltage being set in consideration of an off-leakage current between a source and a drain of the transistor.

Image pickup unit and image pickup display system

An image pickup unit includes: a signal generating section generating a pulse signal that makes transitions between a first voltage and a low-noise second voltage; a voltage holding section holding a difference between a voltage of the pulse signal and a voltage of an output node; a voltage setting section that generates a pixel selection signal through setting the voltage of the output node to a third voltage in correspondence to a transition of the pulse signal from the second voltage to the first voltage, and outputs the pixel selection signal from the output node; and an image pickup section driven by the pixel selection signal.

Image pickup unit, method of driving image pickup unit, and image pickup display system

A liquid crystal display includes a plurality of pixels, each of which includes a thin film transistor (TFT), a gate line supplying a driving signal to a gate of the TFT of each pixel, a liquid crystal capacitor included in each pixel and connected to one terminal of the TFT in a corresponding pixel, a sub-capacitor line aligned in parallel to the gate line, a sub-capacitor included in each pixel and connected between one terminal of the TFT in a corresponding pixel and the sub-capacitor line, and a driving circuit having at least four voltages, selecting one of the voltages and supplying the selected voltage to the sub-capacitor line to drive the liquid crystal display in a state in which the liquid crystal capacitor is capacitively coupled to the sub-capacitor.

Liquid crystal display

Disclosed herein is a transistor including: a semiconductor layer; a first gate insulation film and a first interlayer insulation film which are provided on a specific surface side of the semiconductor layer; a first gate electrode provided at a location between the first gate insulation film and the first interlayer insulation film; an insulation film provided on the other surface side of the semiconductor layer; source and drain electrodes provided by being electrically connected to the semiconductor layer; and a shield electrode layer provided in such a way that at least portions of the shield electrode layer face edges of the first gate electrode, wherein at least one of the first gate insulation film, the first interlayer insulation film and the insulation film include a silicon-oxide film.

Radioactive-ray imaging apparatus, radioactive-ray imaging display system and transistor

An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlightis emitted to a proximity object from an I/O display panel, an electric charge for charging is accumulated in each of image pickup pixelsin accordance with total light amount as a summation of reflected light Lon originating from the illumination light and environment light (outside light) L. Moreover, when the above-described illumination light is not emitted, an electric charge for discharging is released from each of the image pickup pixelsin accordance with light amount of the environment light L. Thereby, a component by the environment light Lis subtracted in an image pickup signal obtained from each of the image pickup pixels, so object information about the proximity object is obtainable without influence of the environment light L. Moreover, in a light reception drive circuit, a smaller number of necessary frame memoriesA for producing a picked-up image from the image pickup signal than that in related art are necessary.

An image pickup unit includes: an image pickup section having a plurality of pixels each including a photoelectric conversion device and a field effect transistor; and a driving section, by using the transistor, that executes read driving and reset driving on a signal charge stored in the pixel. The driving section intermittently executes the reset driving a plurality of times in a one-frame term, and executes on-operation of the transistor by applying, to the transistor over at least one resetting term in the one-frame term or over a partial term in the at least one resetting term, a second voltage that is lower than a first voltage applied in a resetting term in the one-frame term other than the at least one resetting term.

Growing community of inventors

Kanagawa, Japan

Michiru Senda