Kabushiki Kaisha Toshiba

Toshiba Matsushita Display Technology Co., Ltd.

Japan Display Inc.

Honda Giken Kogyo Kabushiki Kaisha

Kabushiki Kaishi Toshiba

Takashi Nakamura

Hirotaka Hayashi

Masahiro Tada

Masahiro Yoshida

Yuzo Hisatake

Masao Karube

Kazuo Nakamura

Tomonobu Motai

Nozomu Harada

Akio Takimoto

Masakatsu Kitani

Hisao Fujiwara

Miyuki Ishikawa

Norio Tada

Yukio Tanaka

Hideyuki Takahashi

Satoru Tomita

Takanori Tsunashima

Makoto Uchida

Daiichi Suzuki

Kohei Nagayama

Takayuki Imai

Hirofumi Kato

Takeshi Kai

Youichi Asakawa

Yasuyuki Hanazawa

Masayoshi Fuchi

Atsuko Oono

Keiichi Saito

Yoshinori Higuchi

Yasuharu Tanaka

Yasuo Saruhashi

Takashi Okada

Takahiko Endo

Kazushi Miyake

A detection device comprising: an input unit configured to receive an operation of a user; a biosensor provided on the input unit and configured to detect biological information on the user; a position sensor configured to detect an operating position that is a position on the input unit where the user has performed the operation; and a controller, wherein the controller comprises: an operation determination unit configured to determine, based on the operating position detected by the position sensor, whether the user has operated the input unit along a predetermined trajectory; and a biological information acquirer configured to, when the user is determined to have operated the input unit along the predetermined trajectory, acquire, from the biosensor, the biological information on the user when the user has operated the input unit along the predetermined trajectory.

Detection device and method for authentication

A fingerprint detection device includes a substrate, a plurality of photoelectric conversion elements that are provided to the substrate and each output a signal corresponding to light emitted thereto, a plurality of signal lines coupled to the photoelectric conversion elements, a detection circuit that is electrically coupled to the photoelectric conversion elements through the signal lines, and a signal line selection circuit that switches the number of the signal lines to be coupled to the one detection circuit.

Fingerprint detection device and display device with fingerprint detection device

A liquid crystal display device according to an aspect of the invention includes a display region having a plurality of sub pixels. The sub pixels each include a pixel electrode and a thin film transistor electrically coupled to the pixel electrode. A transient leak current of each thin film transistor included in the sub pixels at both ends of the display region among the sub pixels provided on a line passing through the center of the display region in plan view is smaller than a transient leak current of each thin film transistor included in the sub pixels in a central portion including the center.

Liquid crystal display device

According to one embodiment, provided is a thin film transistor with which it is possible to reduce the leakage current and thereby, for a liquid crystal display device, to ensure a good display quality. The thin film transistor includes a semiconductor layer, gate electrodes, first light-blocking electrodes, and second light-blocking electrodes. The first light-blocking electrodes are disposed opposite to the gate electrodes with respect to the semiconductor layer and opposed to channel regions to block light incident into the channel regions. The second light-blocking electrodes are disposed opposite to the semiconductor layer with respect to the gate electrodes, arranged to block light incident into the channel regions, and electrically connected with one of a signal line and a pixel electrode.

Thin film semiconductor device

In one embodiment, a display device having a touch function includes an insulating substrate and a plurality of pixels formed on the insulating substrate and arranged in a matrix of rows and columns. The pixels form a plurality of pixel blocks formed of a plurality of rows and columns of the pixels. A sensor circuit is arranged in a space between adjacent pixels on the insulating substrate and includes a coupling electrode, a detection electrode arranged adjacent to the coupling electrode for forming a coupling capacitance therebetween, and a reading-out circuit to read out a potential of the detection electrode. At least one sensor circuit is arranged in each pixel block. The contact or non-contact by a fingertip or a nib is detected by a potential difference of the detection electrode.

Display device with integrated touch function

A signal line drive circuit according to the present invention has: a latch circuit which latches digital pixel data; a D/A converter which converts a latch output from the latch circuit into an analog video signal; an AMP which amplifies the analog video signal converted by the D/A converter; and a signal selection circuit which selects a signal line to which the analog video signal amplified by the AMP is supplied. The AMP has: an odd number of inverters which are cascade-connected; capacitor elements which are respectively connected between stages of the inverters and between an input terminal of the inverter on a first stage and an output terminal of the inverter on a last stage; a first power supply line which supplies a power supply voltage to the inverter on the first stage; and a second power supply line which supplies a power supply voltage to inverters other than the inverter on the first stage. The accuracy of the AMP can be improved by separating the power supply line for only the inverter on the first stage.

Display apparatus, digital-to-analog conversion circuit and digital-to-analog conversion method

A display device, comprising: display elements formed in vicinity of intersections of signal lines and scan lines aligned vertically and horizontally; image pickup units provided corresponding to each of the display elements by at least one piece, each converting incident radiation at predetermined range into an electric signal; electric charge accumulators which accumulate the electric charge in accordance with the electric signal converted by the image pickup units; and signal processing unit which generates digital image data corresponding to image picked up by the image pickup unit, based on accumulated electric charge of the electric charge accumulator for each of a plurality of image pickup conditions.

Display device

A liquid crystal display apparatus according to the present invention includes a pixel array unithaving signal lines and scanning lines respectively arranged side by side, a signal line drive circuitwhich drives the signal lines, a scanning line drive circuitwhich drives the scanning lines, a signal processing output circuitwhich serially outputs the picked-up image data supplied from the sensors, and a sync signal generation circuitA black-white change obtained in the picked-up image data when a finger is brought close to or brought into contact with the pixel array unitis detected, and the coordinate position of the finger is identified taking the ambient brightness into consideration. Regardless of whether the surroundings are bright or dark, therefore, the coordinate position can be detected with high precision. Furthermore, when conducting the coordinate detection, the picked-up image data corresponding to all pixels are not detected, but the picked-up image data are detected every a plurality of pixels in both the signal line direction and the scanning line direction. Therefore, the time taken to detect the coordinates can be shortened.

Display device and information terminal device

A display device, comprising: a pixel array unit having display elements formed in vicinity of intersections of signal lines and scanning lines arranged in length and breadth, image pickup units and an output unit which outputs binary data corresponding to image picked up by said image pickup unit; a image pickup device provided separate from said image pickup unit; a first image processing unit configured to generate multiple gradation data based on multiple binary data picked up by said image pickup units based on multiple image pickup conditions; and a second image processing unit configured to receive either the image pickup data picked up by said image pickup device or the multiple gradation data generated by said first image processing unit, to conduct a prescribed image processing.

In a manufacturing process of a display device, hydrogenation in an I layer of photodiodes Dand Dis progressed less than that in a channel portion of a pixel TFT, and a defect density due to dangling bonds not terminated in the I layer of the photodiodes Dand Dis made higher than a defect density in the channel portion of the pixel TFT. Thus, while suppressing a leakage current of the pixel TFT, the sensitivity of the photodiodes Dand Dto light is improved. Moreover, a gate electrode is provided above an i region of a pin-type optical sensor diode with an insulating film interposed therebetween. Thus, a gate voltage can control a threshold of a bias voltage when a current starts to flow into the optical sensor diode and a leakage current is prevented from flowing into the optical sensor diode.

Suppression of leakage current in image acquisition

A display device has display elements provided inside of pixels, each being formed in vicinity of intersections of signal lines and scanning lines aligned in matrix form; and photoelectric conversion elements, wherein each of the photoelectric conversion elements includes first, second and third semiconductor regions disposed adjacently in sequence in parallel to a surface of a substrate; a first electrode connected to the first semiconductor region; and a second electrode connected to the third semiconductor region, the first semiconductor region being formed by injecting a first conductive impurity in first dose amount; the third semiconductor region being formed by injecting a second conductive impurity in second dose amount; and the second semiconductor region being formed by injecting the first conductive impurity in third dose amount less than the first dose amount.

Display device and photoelectric conversion device

An air bag apparatus for side crash, includes an acceleration sensor, an inflater and an air bag. The acceleration sensor detects acceleration in a side direction larger than a predetermined value to generate a detection signal. The inflater generates a gas in response to the detection signal. The air bag is folded initially, and expands with the gas. The air bag includes a main section and a protrusion section which is provided at a tip portion of the main section such that an inner space of the protrusion section is connected with an inner space of the main section. The protrusion section has at least one opening from which the gas is spouted. The air bag further includes at least one partition provided in an inner space of the air bag.

Air bag apparatus for side crash

It is an object of the present invention to provide a display apparatus which can be miniaturized and is operated stably even at high resolution. The display apparatus according to the present invention includes a pixel array unit, a signal line driving circuit, and a scanning line driving circuit, each of which is formed by using a polysilicon TFT on a glass substrate, a control circuit, and a graphic controller IC. Since the graphic controller IC rearranges digital pixel data DATA in the inside, it is unnecessary to provide a gate array. Since the cycle of a clock signal CLK is twice as much as that of the digital pixel data DATA, the clock signal CLK having a frequency at which the polysilicon TFT normally operates can be supplied to the signal line driving circuit. Further, since the edge of the clock signal CLK is deviated from the changing position of the digital pixel data DATA and they are outputted, the signal line driving circuit can effectively capture the digital pixel data DATA.

Display apparatus, image control semiconductor device, and method for driving display apparatus

Growing community of inventors

Kumagaya, Japan

Takashi Nakamura