Minolta Company, Ltd.

Konica-minolta Holdings, Inc.

Konica Minolta Opto, Inc.

Konica Minolta, Inc.

Tomoo Izumi

Hiroyuki Yamasaki

Masahiko Matsuura

Satoshi Deishi

Masami Yamada

Akira Kosaka

Eiichi Sano

Atsuto Hirai

Katsuhiko Takeda

Masahide Ueda

Mitsuhiro Fukuda

Yoshihisa Terasaka

Akihito Ikegawa

Masakazu Okada

Jun Yamada

Mitsuyoshi Miyai

Hideo Taka

Takashi Kondo

Takeshi Hakii

Nobuyuki Kobayashi

Keiichi Furukawa

Akihito Hisamitsu

Hiroyuki Isobe

Satoshi Yoshida

Sota Sato

Koki Ikemoto

An organic electroluminescent element has at least one pair of electrodes including an anode and a cathode and one or more organic functional layers between the anode and the cathode that are in a pair. The organic electroluminescent element includes an organic functional layer that exists as a continuous phase over an entire display area and includes an at least one light emitting compound with a concentration gradient in an in-plane direction and in a thickness direction of the organic functional layer.

Organic electroluminescent element, method for producing same and display device

In the case of depositing a metal in a plurality of stages by applying deposition voltages having a plurality of rectangular waves at different voltages to an electrochemical display element, the application time of the rectangular wave at the highest voltage among the plurality of rectangular waves is set to a time (Tip) required for reaching a resistance inflexion point (Rip) where the resistance value (R) of a pixel starts to rapidly increase or shorter. Thus, the element can be prevented from being broken without deteriorating the response characteristics of a display element.

Method for driving electrochemical display element

This invention provides a novel process for producing an electrochemical display element, which can easily form a white scattering layer between opposed electrodes, has a high level of suitability for production, and has high stability after long-term use. The production process is characterized in that a film containing a white scattering material and a polymeric binder is formed on at least one electrode in opposed electrodes, the other electrode is disposed so as to face the electrode with film formed thereon, a low-viscosity electrolyte is poured into a space between the opposed electrodes, and the polymeric binder is dissolved in or swollen in the electrolyte to form a gel-like electrolyte layer containing the white scattering material and the polymeric binder within the space.

Process for producing electrochemical display element and electrochemical display element

A method of manufacturing a low-cost thin film transistor of minimized variations in performances, as well as the thin film transistor produced thereby. A thin film transistor manufacturing method including the steps of: forming a gate electrode on a substrate; forming a gate insulation layer on the gate electrode; forming a semiconductor layer by coating the gate insulation layer with a semiconductor material; forming a repellent layer having an electrode material-repellent characteristic on the semiconductor layer; applying light from the surface of the substrate where there is no gate electrode, thereby removing the semiconductor layer and the repellent layer by sublimation, except for the portion protected against light by the gate electrode; and dropping the fluid electrode material on the repellent layer remaining on the substrate so that the fluid electrode material is separated by the repellent layer, whereby the source electrode and the drain electrode are formed.

Thin film transistor and method of manufacturing thin film transistor

A method of manufacturing an organic thin film transistor characterized by low costs and high performances, the method in which the self-assemble monolayer is formed in a short period of time, and the organic thin film transistor are provided. A method of manufacturing an organic thin film a transistor having a gate electrode, a semiconductor layer, a source electrode, and a drain electrode on a substrate, wherein a semiconductor solution as a mixture of the self-assembled monolayer material and organic semiconductor material is coated between the source electrode and drain electrode, whereby a semiconductor layer is formed.

Method of manufacturing organic thin film transistor and organic thin film transistor

An actuator device which is made as a laminated structure including a displacement-functioning layer having a region to be deformed by the electric field and an electrode-functioning layer having a region to function as an electrode. And an manufacturing method in which the above-mentioned device is easily manufactured, the method in which, according to the laminated structure, arranging each layer to be formed on the transfer section and transferring it onto the substrate to laminate.

Actuator device and method of manufacturing the same

A shape-variable optical element, which includes: a shape-variable section made up of an organic material that can be expanded and contracted by an electric field, in a direction of the electric field; and a pair of electrode layers to sandwich the shape-variable section, wherein amounts of expansion and contraction of the shape-variable section, which are generated by the electric field when a voltage is applied to the pair of electrode layers, have a distribution pattern in a surface perpendicular to the electric field.

Shape-variable optical element, optical device and image pickup apparatus

The present invention provides a display element including a layered body. The layered body includes a layered portion comprising a plurality of transparent thin films with different refractive indexes, and a plurality of electrodes which are adapted to apply an electric field to each of the plurality of transparent thin films. Each of the plurality of transparent thin films comprises a material whose thickness changes according to the electric field.

Display element

A liquid crystal composition including at least two kinds of gelling agents and a liquid crystal. The liquid crystal shows a liquid crystal phase at room temperature. A liquid crystal display device using the liquid crystal composition also is provided.

Liquid crystal composition containing at least two kinds of gelling agents and liquid crystal display device using the same

A liquid crystal display device, comprising: a liquid crystal layer comprising a cholesteric liquid crystal and a self-organizing type gelling agent, and a manufacturing method thereof, comprising: spreading a cholesteric liquid crystal containing a gelling agent in a heated state over at least one of substrates to form a liquid crystal layer, or a manufacturing method thereof, comprising: spreading a cholesteric liquid crystal that contains a gelling agent and exhibits flowability at room temperature over at least one of substrates to form a liquid crystal layer.

Liquid crystal display device and manufacturing method thereof

A chiral nematic liquid crystal composition, characterized in that a self-organizing type gelling agent is contained and the phase transition temperature between liquid crystal and isotropic phases is higher than the sol-gel transition temperature, a liquid crystal display device wherein the chiral nematic liquid crystal composition is put and held between a pair of substrates having an electrode, and a method for producing a liquid crystal display device wherein the chiral nematic liquid crystal composition is heated to a temperature of not lower than the phase transition temperature between liquid crystal and isotropic phases and then cooled down to room temperature.

Chiral nematic liquid crystal composition, liquid crystal display device, and production method thereof

A liquid crystal display apparatus which have a circular polarizer and a liquid crystal display in a stack. The liquid crystal display has a chilral nematic liquid crystal layer between substrates, and on the mutually opposite sides of the substrates, electrodes and aligning layers are formed. The liquid crystal switches between a planar alignment state and a focal-conic alignment state depending on the voltage applied thereto through the electrodes. In a planar state, light reflected by the electrodes is absorbed by the circular polarizer, and a black display is made. In a focal-conic state, light reflected by the electrodes passes through the circular polarizer, and a white display is made. The liquid crystal is driven by a chain of voltage pulses including a reset step of resetting the liquid crystal to a homeotropic state, a selection step of selecting the alignment state of the liquid crystal under zero-volt application and an evolution step of causing the liquid crystal to evolve to the selected alignment state.

Liquid crystal display apparatus

A liquid crystal display apparatus has a liquid crystal display with a plurality of pixels arranged in a matrix, a scanning electrode driver and a signal electrode driver for driving the liquid crystal display, and a controller which controls the scanning electrode driver to change waveforms of pulses output therefrom with changes in circumstantial temperature of the liquid crystal display. The controller controls the scanning electrode driver to heighten a selection pulse voltage and to narrow a selection pulse width with a rise in circumstantial temperature and to lower the selection pulse voltage and to widen the selection pulse width with a fall in circumstantial temperature.

A liquid crystal display apparatus which has: a liquid crystal display which has chiral nematic liquid crystal between a pair of substrates with electrodes thereon and which makes a display by use of selective reflection of the liquid crystal; and a driving circuit for driving the liquid crystal by applying voltages to the electrodes. When an electric field of a specified strength is applied to the chiral nematic liquid crystal, the liquid crystal changes the direction of the helical axis without untwisting. By using this characteristic, the direction of the helical axis of the liquid crystal is changed by changing the direction of the electric field applied thereto, and thereby, the liquid crystal is set to a planar state or a focal-conic state. In this way, writing on the liquid crystal is carried out.

Liquid crystal display apparatus exhibiting cholesteric phase

An image forming apparatus includes a latent image carrying member that carries an electrostatic latent image on a surface thereof, and an ink holding member that is disposed in opposing relation to the latent image carrying member and holds a thin layer of conductive ink on a surface thereof. The surface of the ink holding member is formed of a conductive material and has a plurality of projecting portions. The image forming apparatus further comprising a voltage applying unit that applies, to the projecting portions, a voltage of polarity different from that of a potential of the electrostatic latent image and thereby causes the ink to jump from the projecting portions located in opposing relation to the electrostatic latent image toward the electrostatic latent image. In the image forming apparatus, the following weak inequality is satisfied:

Growing community of inventors

Toyonaka, Japan

Tomoo Izumi