Minolta Company, Ltd.

Minolta Camera Kabushiki Kaisha

Konica Minolta, Inc.

Merck Patent Gmbh

Konica-minolta Holdings, Inc.

Minolta Camera Co., Ltd.

Tsukasa Yagi

Ken Matsubara

Tomohiko Masuda

Kenichi Wada

Kazuyoshi Omata

Itaru Saito

Hirohisa Kitano

Yuji Kamoda

Koji Wakamiya

Kouichi Shingaki

Atsushi Fujita

Kohichi Shingaki

Isao Doi

Naoki Masazumi

Hirofumi Ohtani

Natsuki Yamamoto

Kouichi Ishida

Yuichi Iketsu

Kuniaki Shida

Itaru Saitoh

Masaru Iwagaki

Eiji Yamakawa

Masahiro Morikawa

Masatoshi Yoneyama

Nobuya Miki

Makiko Mandai

Mikihiro Komatsu

Tatsuya Kanazawa

Kouji Miyawaki

Hirchisa Kitano

An optical fingerprint authentication device includes at least a light source and an image sensor and detects diffused light. The light source is an organic electroluminescence panel. The organic electroluminescence panel comprises a light emitting portion region and a light-transmitting non-light emitting portion, the light emitting portion region being shaped by an organic electroluminescence element. A fingerprint information reader having the image sensor arranged at a position adjacent to the non-light emitting portion is provided.

Optical fingerprint authentication device

The organic electroluminescence module has a touch function of detecting contact or proximity of an operation body. The module has a touch detection circuit unit with a capacitance touch detection circuit section; and a light emitting element drive circuit unit comprising a light emitting element drive circuit section which drives an organic electroluminescence panel. The organic electroluminescence panel has light emitting areas and a pair of at least two plate electrodes that are internally and mutually opposed. The pair of electrodes is connected to the light emitting element drive circuit unit. One of the pair of electrodes is a touch detection electrode. Either one or both of the pair of electrodes is connected to the touch detection circuit unit. A first electrode of the pair of electrodes is divided into portions while a second electrode of the pair of electrodes is a single piece. The same potential is applied at least to the divided portions of the first electrode during a touch detection period.

Organic electroluminescence module, smart device, and illumination device

An illumination device is provided with: a planar first electrode; a planar second electrode arranged to face the first electrode; a light emitting layer which is disposed between the first electrode and the second electrode and emits light in accordance with a current flowing between the first electrode and the second electrode; a first sensor that is electrically connected to the first electrode and detects an electrostatic capacitance of the first electrode; and a second sensor that is electrically connected to the second electrode and detects an electrostatic capacitance of the second electrode.

Illumination device

This organic electroluminescence module is provided with: an organic electroluminescent element in which an organic luminescence function layer is provided between a pair of electrodes; a luminescent element driving circuit unit that is connected to the pair of electrodes and controls luminescence of the organic electroluminescent element; and a touch position detection circuit unit connected to a detection electrode at both ends thereof, which is one of the pair of electrodes, in a touch position detection direction, wherein one of the both ends of the detection electrode is set as an input end and other is set as an output end, and the touch position detection circuit unit performs touch position detection by detecting, at the output end, electrical signals inputted from the input end.

Organic electroluminescence module, smart device, and lighting apparatus

Provided is an organic electroluminescent module with: an organic electroluminescent device in which an organic luminescent functional layer is provided between a pair of electrodes; a luminescent-device driving circuit unit that is connected to the pair of the electrodes and controls the luminescence of the organic electroluminescent device; and a touch-position detection circuit unit that is connected to both ends of a detection electrode in a touch-position detection direction, which is either of the pair of electrodes, wherein the touch-position detection circuit unit performs the touch-position detection by detecting electrical characteristics at both ends of the detection electrode.

Organic electroluminescent module, smart device, and illumination apparatus

An object of the present invention is to provide an organic EL device that includes an electrode having a light-emitting function and a touch sensing function, an organic electroluminescent module that includes a specific controlling circuit and can contribute to reduction in sizes and thickness and simplified production steps of the device, and a smart device and an illumination device each including the organic electroluminescent module. The organic electroluminescent module of the present invention has a touch sensing function and includes a capacitive touch sensing circuit unit and a light-emitting device driving circuit unit including a light-emitting device driving circuit section for driving an organic electroluminescent panel. The organic electroluminescent panel includes paired opposite plate electrodes therein. The paired electrodes are connected to the light-emitting device driving circuit unit, and one of the paired electrodes is a touch sensing electrode that is connected to the touch sensing circuit unit.

Organic electroluminescence module, smart device, and lighting device

A luminescent device that has at least an anode layer (), a cathode layer (), and an organic EL layer () formed on a transparent substrate (), and has the organic EL layer () placed between the anode layer () and the cathode layer () is disclosed. In this luminescent device, notches () are formed at the rim portion of the transparent substrate, and patterning is performed on the transparent substrate () so that the organic EL layer () avoids the notches (), and the anode layer () and the cathode layer () overlap the organic EL layer (). Part of the anode layer () and part of the cathode layer () are exposed through the respective notches () of the transparent substrate ().

Luminescent device and method of manufacturing the same including forming a plurality of notches or slits in a substrate to enable planar light emittance in a curved state

An object of the present invention is to provide an organic EL device that includes an electrode having a light-emitting function and a touch sensing function, an organic electroluminescent module that includes a specific controlling circuit and can contribute to reduction in sizes and thickness and simplified production steps of the device, and a smart device and an illumination device each including the organic electroluminescent module. The organic electroluminescent module of the present invention has a touch sensing function and includes a touch sensing circuit unit and a light-emitting device driving circuit unit including a light-emitting device driving circuit section for driving an organic electroluminescent panel. The organic electroluminescent panel includes paired opposite electrodes therein. The paired electrodes are connected to the light-emitting device driving circuit unit, and one of the paired electrodes is a touch sensing electrode that is connected to the touch sensing circuit unit. The touch sensing circuit unit and the light-emitting device driving circuit unit are connected to independent grounds.

An organic EL element driving device that drives an organic EL element with a constant current is provided. The organic EL element driving device includes a power supply connected in series with the organic EL element, and a current control unit connected in series with the organic EL element. The current control unit includes a current detection circuit having a resistor for detecting the value of the current passing through the organic EL element. The current control unit sets a prescribed value for the current to be passed through the organic EL element in accordance with the luminance control, and performs control such that the current passing through the organic EL element has the prescribed value in accordance with an output from the current detection circuit. A value of the resistor in the current detection circuit is varied in accordance with the luminance control.

Organic EL element driving device and organic EL lighting apparatus

Disclosed is an illumination apparatus, which is constituted by a plurality of OLED devices and makes it possible to improve an accuracy of a dimming control operation. The apparatus is provided with a driving electric power source including: a pulse generating section; an OLED driving section; a first voltage source; a second voltage source; a current source; a switchover section that conducts a switchover operation between the first voltage source and the current source during the time when the duty ratio of the driving pulses is increasing, and also conducts another switchover operation between the first voltage source and the current source during the time when the duty ratio of the driving pulses is decreasing; and an OLED illumination disabling section that makes the second voltage source supply the second electric power to the OLED unit, only during the time when each of the pulses is the OFF state.

Illumination apparatus

A liquid crystal display device which carries out matrix driving of a liquid crystal layer by applying AC pulses to the liquid crystal layer through a plurality of scan electrodes and a plurality of data electrodes which face and cross each other. A method of driving such a liquid crystal display comprises a reset step of applying a reset pulse to liquid crystal to reset the liquid crystal to an initial state, a selection step of applying a selection pulse to the liquid crystal to select a final state of the liquid crystal, an evolution step of applying an evolution pulse to the liquid crystal to cause the liquid crystal to evolve to the selected final state. The reset pulse and the evolution pulse have alternating cycles which are longer than that of the selection pulse, and the adjustment of the alternating cycles of the reset pulse and of the evolution pulse are made by changing the pulse waveform applied to each of the scan electrodes.

Liquid crystal display device and method for driving a liquid crystal display

While light of R, G and B is switched from one to another and directed to a plurality of light shutter elements made of PLZT, a voltage is applied in accordance with image data between individual electrodes for the respective light shutter elements and a common electrode for all the light shutter elements. While a half-wave voltage Vr for light of R is applied to the individual electrodes, the voltage applied to the common electrode is altered to 0V, Vr-Vg and Vr-Vb in synchronization with switch of the three primary colors so that half-wave voltages for the respective colors can be applied to the light shutter elements.

Light shutter device and a driving method thereof

A matrix driving method for liquid crystal display having liquid crystal which exhibits cholesteric phase and capability of keeping image displayed after turn-off of electric field applied by using scan electrodes and data electrodes arranged to face and cross each other with the liquid crystal in between, includes applying reset pulse to reset liquid crystal to homeotropic state, selecting final state of liquid crystal, and stabilizing liquid crystal to selected state. The selection step includes, in order named, a first time of applying substantially 0 volt to liquid crystal, a second time of applying selection pulse to select final state of liquid crystal, and a third time of applying substantially 0 volt to liquid crystal. In first or second time, a compensation pulse may be applied to liquid crystal in form determined depending on temperature or so that a plurality of liquid crystal layers will have same scanning speed.

Liquid crystal display driving method and liquid crystal display device

A method for driving an optical write device, in which a time for formation of a pixel is divided into a plurality of periods, and tone level control based on multi-tone image, data is performed in each of the periods. For example, the time for formation of a pixel is divided by applying a train of pulses with widths weighted in the ratio of 4:2.1, and in each duration of the pulses, a clock signal for 64 tone levels is given.

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Kobe, Japan

Tsukasa Yagi