Seiko Epson Corporation

Ryukoku University

Rohm Co., Ltd.

Cambridge Display Technology Limited

Mutsumi Kimura

Tokuroh Ozawa

Hiroshi Kiguchi

Tomoyuki Itoh

Yojiro Matsueda

Hiroyuki Hara

Michael Quinn

Tatsuya Shimoda

Satoshi Inoue

Ryoichi Nozawa

Hidekazu Kobayashi

Richard Henry Friend

Jeremy H Burroughes

Sumio Utsunomiya

Takashi Aoki

Tomoko Koyama

Stephen Karl Heeks

Wakao Miyazawa

Chiharu Iriguchi

Tomoyuki Okuyama

Kanemitsu Kubota

Yoshinori Miyamae

Takashi Nakanishi

Sumio Sugisaki

Mariko Sakemi

Jeremy Henley Burroughes

Provided is a memristor that can be manufactured at a low temperature, and does not include metals of which resources might be depleted. This memristor includes a first electrode, a second electrode, and a memristor layer of an oxide having elements of Ga, Sn, and oxygen, disposed between the first electrode and the second electrode. When voltage is applied to the first electrode with respect to the second electrode, the voltage being positive or negative, a current flows; when voltage of a data-set voltage value is applied, a state is transitioned from a high-resistance state to a low-resistance state; and when voltage of a data-reset voltage value that is of an opposite sign to that of the data-set voltage value is applied, the state is transitioned from a low-resistance state to a high-resistance state.

Memristor and neural network using same

A semiconductor device includes: a substrate; a p-type organic transistor including an organic semiconductor layer arranged on or above the substrate; and an n-type inorganic transistor including an inorganic semiconductor layer arranged on or above the organic transistor, wherein a channel region of the inorganic transistor overlaps a channel region of the organic transistor at least partially in a plan view.

Semiconductor device and electronic apparatus

An object of the invention is to improve patterning accuracy while maintaining low cost, high throughput and a high degree of freedom of an optical material in a matrix type display device and a manufacturing method thereof. In order to achieve the object, a difference in height, a desired distribution of liquid repellency and affinity to liquid, or a desired potential distribution is formed by utilizing first bus lines in a passive matrix type display device or utilizing scanning lines, signal lines, common current supply lines, pixel electrodes, an interlevel insulation film, or a light shielding layer in an active matrix type display device. A liquid optical material is selectively coated at predetermined positions by utilizing the difference in height, the desired distribution of liquid repellency and affinity to liquid, or the desired potential distribution.

Matrix type display device with optical material at predetermined positions and manufacturing method thereof

A transistor circuit is provided including a driving transistor where conductance between the source and the drain is controlled in response to a supplied voltage, and a compensating transistor where the gate is connected to one of the source and the drain, the compensating transistor being connected so as to supply input signals to the gate of the driving transistor through the source and drain. In a transistor circuit where conductance control in a driving transistor is carried out in response to the voltage of input signals, it is possible to control the conductance by using input signals of a relatively low voltage and a variance in threshold characteristics of driving transistors is compensated. With this transistor circuit, a display panel that can display picture images with reduced uneven brightness is achieved.

Transistor circuit, display panel and electronic apparatus

Matrix type display device and manufacturing method thereof

A method for producing an organic EL display device is disclosed. The display device comprises a substrate, a transistor disposed on the substrate, a flattened inter-layer insulation film covering the transistor, a pixel electrode, and an organic EL layer.

Current-driven light-emitting display apparatus and method of producing the same

A display apparatus, that includes current driving type luminescent elements, has a driving system that takes the conduction types of TFTs to control the emission of the luminescent elements into consideration. In order to reduce driving voltage and improve display quality simultaneously, the arrangement is provided such that if the second TFT which performs the 'on-off' function of the current for the luminescent element is of an N channel type, the potential of the common power supply line ('com') is lowered below the potential of the opposite electrode (&#x201c;op&#x201d;) of the luminescent element to obtain a higher gate voltage (&#x201c;Vgcur&#x201d;). In this case, if the first TFT connected to the gate of the second TFT is of a P channel type, when using the potential of the potential-holding electrode (&#x201c;st&#x201d;) at the &#x201c;on&#x201d; state as a reference, potentials of the scanning signal (&#x201c;Sgate&#x201d;) at the lower potential and the common power supply line (&#x201c;com&#x201d;) are rendered of the same polarities with respect to this potential of the potential-holding electrode (&#x201c;st&#x201d;). Therefore, the potential of the image signal (&#x201c;data&#x201d;) to turn &#x201c;on&#x201d; can be shifted within the range of the driving voltage in the display apparatus in the direction to reduce resistances at the &#x201c;on&#x201d; states of the first TFT and the second TFT to reduce driving voltage and improve display quality.

Display apparatus

An electroluminescent device including a substrate, a transistor disposed above the substrate, the transistor including a gate electrode, a silicon film opposing the gate electrode, and a gate insulating film between the gate electrode and the silicon film. The electroluminescent device including a first interlayer insulation film covering the transistor, a second interlayer insulation film disposed above the first interlayer insulation film, and a pixel electrode disposed above the second interlayer insulation film and electrically connected to the transistor. The electroluminescent device including an organic EL layer disposed between the pixel electrode and a counter electrode, and a capacitor including a first electrode formed by the same material as the silicon film and a second electrode formed by the same material as the gate electrode.

An electroluminescent apparatus having a substrate and a transistor formed above the substrate and having a gate electrode and a semiconductor film. The electroluminescent apparatus having a first insulation film including a first contact hole and a junction electrode contacted to the semiconductor film through the first contact hole. The electroluminescent apparatus having a second insulation film formed above the junction electrode and the first insulation film and including a second contact hole and a pixel electrode formed on the second insulation film and contacted to the junction electrode through the second contact hole. The electroluminescent apparatus having an insulating layer formed above the second insulation film, an organic semiconductor film formed at an emitting region above the pixel electrode, and an opposite electrode formed above the organic semiconductor film and insulating layer. The insulating layer surrounding the emitting region and overlapping the second contact hole.

A display device having a scanning line, a data line, a power supply line, and a pixel. The pixel having a first transistor supplied with a selecting pulse of a scanning signal, a holding capacitor having a first electrode and a second electrode that holds an image signal from the data line and the first thin film transistor. The pixel also having a second transistor controlled by the image signal, a gate of the second transistor being electrically connected to the second electrode, and a luminescent element provided between a pixel electrode and an opposite electrode opposed to the pixel electrode driven by current that flows between the pixel electrode and the opposite electrode. A potential of the gate electrode of the second transistor being able to be shifted by supplying to the first electrode of the holding capacitor with a predetermined signal after the selecting pulse becomes non-selective.

The invention enhances a production yield of a display device (an electro-optical device). The invention provides a method of manufacturing an electro-optical device including a display region in which a plurality of basic pixels are arranged, each basic pixel including a plurality of color pixels. The method includes: forming on a first substrate lines to drive a plurality of electro-optical elements respectively constituting the color pixels, correspondingly to the arrangement of the basic pixels; forming on a second substrate, as a chip to be transferred to each basic pixel, a drive circuit to drive the plurality of electro-optical elements which constitutes the plurality of color pixels of the basic pixels to obtain a plurality of basic-pixel driving chips; and transferring step of transferring the respective basic-pixel driving chips from the second substrate onto the first substrate, and connecting the drive circuits to regions of the lines corresponding to the basic pixels.

Electro-optical device, transferred chip, and transfer origin substrate

A light emitting device includes: a plurality of first electrodes; a plurality of second electrodes; and a plurality of light emitting films. Each of the plurality of light emitting films is disposed between one first electrode among the plurality of first electrodes and one second electrode among the plurality of second electrodes. The one first electrode is electrically connected to the second electrode that is adjacent to the one second electrode among the plurality of second electrodes.

Light emitting device, method of manufacturing the same, and electronic apparatus

A circuit board manufacturing method, including forming a transfer chip, the forming of the transfer chip including, forming a wiring above a first substrate, forming a plurality of first pad electrodes so as to be connected to the wiring and so as to be included in the transfer chip, and joining the transfer chip with a member such that the plurality of first pad electrodes contact the member.

Method of manufacturing circuit board including transfer chip having a plurality of first pad electrodes connected to wiring

Aspects of the invention can provide a method for driving an electro-optical device, an electro-optical device and electronic equipment that can solve the insufficient supply of the data current and current fluctuation. In the driving method, a data current can be applied to a plurality of pixels provided to a display panel unit with same value through the data line regardless of grayscale data. Upon supply of the data current, in the pixel, a transistor selected in reproduction can be turned on such that a drive current corresponding to the data current output from a driving transistor is supplied to an organic EL element, thereby emitting light. A light-off signal can be supplied to the pixel at predetermined timing such that the organic EL element emits light only in the light-emitting period computed based on the grayscale data. The pixel to which a constant data current can be supplied emits light at a luminance corresponding to the grayscale data by changing the light-emitting period corresponding to the grayscale data.

Growing community of inventors

Suwa, Japan

Mutsumi Kimura