Semiconductor Energy Laboratory Co., Ltd.

Other

Tdk Corporation

Naoto Kusumoto

Shunpei Yamazaki

Koichiro Tanaka

Susumu Kawashima

Hongyong Zhang

Satoshi Teramoto

Kazuo Nishi

Daiki Yamada

Hidekazu Takahashi

Yuusuke Sugawara

Takuya Tsurume

Yasuhiko Takemura

Tomoyuki Aoki

Masato Yonezawa

Yoshitaka Dozen

Takayuki Ikeda

Hideto Ohnuma

Tatsuya Arao

Setsuo Nakajima

Takuro Ohmaru

Kaori Ogita

Eiji Sugiyama

Junya Maruyama

Koji Kusunoki

Kazunori Watanabe

Hiroki Adachi

Koji Dairiki

Hironobu Takahashi

Toru Takayama

Hisato Shinohara

Kentaro Hayashi

Hisashi Ohtani

Daisuke Kubota

Takashi Hirose

Takeshi Fukunaga

Kouhei Toyotaka

Hideaki Shishido

Kazuya Hanaoka

Atsushi Hirose

Tadayoshi Miyamoto

Atsushi Yoshinouchi

Honyong Zhang

Nobuharu Ohsawa

Osamu Nakamura

Kensuke Yoshizumi

Hidetomo Kobayashi

Mikio Yukawa

Akio Endo

Ryosuke Watanabe

Yoshikazu Hiura

Yuki Tamatsukuri

Jun Koyama

Yoshiyuki Kurokawa

Yoshiharu Hirakata

Yasuyuki Arai

Kengo Akimoto

Junichi Koezuka

Kei Takahashi

Hisao Ikeda

Shinya Sasagawa

Yukinori Shima

Junpei Momo

Daisuke Matsubayashi

Yuki Okamoto

Minoru Takahashi

Tamae Moriwaka

Yosuke Tsukamoto

Yumiko Saito

Shinji Ohno

Satoshi Shinohara

Suguru Hondo

Akio Suzuki

Yusuke Yoshitani

Hirokazu Watanabe

Wataru Sekine

A lightweight, foldable electronic device with an input function is provided. The electronic device is provided with a foldable display apparatus; the display apparatus has an input function, an authentication function, and the like, and is capable of operating the electronic device with or without contact. The display apparatus includes a light-emitting device and a light-receiving device in a display portion. The light-emitting device has a function of performing display. The light-emitting device may also have a light-emitting function for aiding input operation. The light-receiving device has an imaging function and a function of a sensor for performing input operation.

Electronic device and authentication method of electronic device

A display apparatus with low-power consumption is provided. The display apparatus includes an inverter circuit and a pixel having a function of adding data, and the inverter circuit has a function of inverting data supplied from a source driver. The inverter circuit has a function of inverting data supplied from a source driver. The pixel has a function of adding data supplied from the source driver and the inverter circuit. Accordingly, the pixel can generate a voltage several times higher than the output voltage of the source driver and can supply the voltage to a display device. With such a structure, the output voltage of the source driver can be lowered, so that a display apparatus with low power consumption can be achieved.

Display apparatus and electronic device

A display device capable of improving image quality is provided. A storage node is provided in each pixel and first data can be held in the storage node. Second data is added to the first data by capacitive coupling, which can be supplied to a display element. Thus, the display device can display a corrected image. A reference potential for the capacitive coupling operation is supplied from a power supply line or the like, and thus the first data and the second data can be supplied from a common signal line.

Semiconductor device having circuit comprising display element

A display device capable of performing proper display without image signal conversion is provided. In the case of high-resolution display, individual data is supplied to each pixel through a first signal line and a first transistor included in each pixel. In the case of low-resolution display, the same data is supplied to a plurality of pixels through a second signal line and a second transistor electrically connected to the plurality of pixels. When the number of image signals to be displayed is more than one and the image signals support different resolutions, display can be performed without up conversion or down conversion by switching an image signal supply path as described above.

Display device and electronic device

A support for supporting a flexible component is provided. A flexible component support can be folded without decreasing the reliability of the flexible component. The support has a region where two different hinges overlap each other, and bending operation in the region can be performed only in one direction from a flat surface state. Accordingly, even in the case where unintended bending stress is applied to the region in an opposite direction, the flexible component or the support can be protected. In addition, the two hinges can each include position correction mechanism, which enables stable bending operation.

Flexible component support and display device

An electronic device capable of detecting a user's body movements is to be provided. The electronic device is display equipment worn in front of the user's eye and capable of detecting the blinking action. The electronic device includes a display apparatus and a light source in a housing, and the display apparatus includes a light-emitting device and a light-receiving device in a display portion. Light emitted by the light source is incident on the user's eye and the vicinity thereof through a mirror and reflected, and the reflected light is detected by the light-receiving device. The amount of light reflected by the eyelid and that by the eyeball are different from each other, which enables the blinking action to be detected. The detection of the blinking action enables the user's fatigue state to be estimated.

Electronic device with display apparatus having light-emitting device and light-receiving device over insulating layer

A display device capable of improving image quality is provided. A display device includes a plurality of pixel blocks in a display region. The pixel blocks each include a first circuit and a plurality of second circuits. The first circuit has a function of adding a plurality of pieces of data supplied from a source driver. The second circuit includes a display element and has a function of performing display in accordance with the added data. One pixel has a configuration including one second circuit and an component of the first circuit that is shared. When the first circuit is shared by a plurality of pixels, the aperture ratio can be increased.

A display device includes a first region and a second region adjacent to the first region. A display element included in the first region has a function of reflecting visible light and a function of emitting visible light. A display element included in the second region has a function of emitting visible light. In an electronic device including the display device, the first region is located on a first surface (e.g., top surface) on which a main image is displayed, and the second region is located on a second surface (e.g., side surface) on which an auxiliary image is displayed.

A display device with a narrow bezel is provided. The display device includes a pixel circuit and a driver circuit which are provided on the same plane. The driver circuit includes a selection circuit and a buffer circuit. The selection circuit includes a first transistor. The buffer circuit includes a second transistor. The first transistor has a region overlapping with the second transistor. One of a source and a drain of the first transistor is electrically connected to a gate of the second transistor. One of a source and a drain of the second transistor is electrically connected to the pixel circuit.

A display apparatus having an excellent boosting function is provided. The display apparatus is provided with a pixel having a function of adding data (a boosting function). A capacitor for boosting voltage is provided in the pixel, and data is added by capacitive coupling to be supplied to a display device. The capacitor for boosting voltage and a capacitor for retaining data are placed on top of each other, whereby the capacitance value of the capacitor for boosting voltage can be increased. Thus, the pixel can have an excellent boosting function, without significantly losing the aperture ratio or definition.

A display device capable of improving image quality is provided. The display device includes a first circuit, a pixel, and a wiring. The first circuit has a function of supplying data to the wiring and a function of making the wiring floating to hold the data. The pixel has a function of taking in the data twice from the wiring and performing addition. The pixel can perform the first writing of the data in a period during which the data is supplied to the wiring, and can perform the second writing of the data in a period during which the data is held in the wiring. Therefore, by one lime of data charging to a source line, a data potential larger than or equal to an output voltage of a source driver can be supplied to a display element.

An imaging device with low power consumption is provided. The pixel of the imaging device includes first and second photoelectric conversion elements, and first to fifth transistors. A cathode of the first photoelectric conversion element is electrically connected to the first transistor. An anode of a second photoelectric conversion element is electrically connected to the second transistor. Imaging data of a reference frame is obtained using the first photoelectric conversion element, and then imaging data of a difference detection frame is obtained using the second photoelectric conversion element. After the imaging data of the difference detection frame is obtained, a first potential that is a potential of a signal output from the pixel and a second potential that is a reference potential are compared. Whether or not there is a difference between the imaging data of the reference frame and the imaging data of the difference detection frame is determined using the first potential and the second potential.

Imaging device, operating method thereof, and electronic device

To provide a display device capable of performing image processing. Each pixel is provided with a memory circuit in which desired correction data is retained. The correction data is generated by calculation in an external device and written to each pixel. The correction data is added to image data by capacitive coupling and supplied to a display element. Thus, the display element can display a corrected image. Through the correction, image upconversion can be performed, or image quality decreased because of variations in pixel transistor characteristics can be corrected.

An imaging device that generates, in a pixel, a potential higher than a potential to be supplied to the pixel is provided. The imaging device includes a pixel including a first circuit and a second circuit; the second circuit includes a photoelectric conversion device; the first circuit is electrically connected to the second circuit; the first circuit has a function of adding a first potential and a second potential to generate a third potential; and the second circuit has a function of generating data in the photoelectric conversion device to which the third potential is applied and has a function of outputting the data.

Imaging device comprising first circuit and second circuit

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Kanagawa, Japan

Naoto Kusumoto