Mitsubishi Electric Corporation

Joled Inc.

Jdi Design and Development G. K.

Yasuhiro Sekimoto

Mineki Hasegawa

Shinichiro Ishino

Toshiyuki Akiyama

Tomohiko Oda

Muneharu Sato

Masakazu Takata

Yasuhiro Yamauchi

Yukimori Kishida

Yoshitomo Hayashi

Masaya Harakawa

Akira Imanaka

Shinichi Ogusa

Yuji Nojiri

Shizuri Tamura

Akira Hatai

Mitsuhiko Kanda

Takeshi Kamiya

An organic EL element including an anode, a first functional layer including organic material, disposed above the anode, a second functional layer including organic material, disposed on and in contact with the first functional layer, a light emitting layer disposed on and in contact with the second functional layer, and a cathode disposed above the light emitting layer. A highest occupied molecular orbital (HOMO) level of the organic material of the second functional layer has an energy level at least 0.2 eV lower than that of a HOMO level of the organic material of the first functional layer, and film thickness of the second functional layer is 15 nm or less.

Organic EL element, organic EL panel, and organic EL element manufacturing method

An organic electroluminescence element including an anode, a light-emitting layer, a functional layer, and a cathode stacked in this order. The light-emitting layer and the functional layer are in contact with each other. Hole mobility of the light-emitting layer is greater than electron mobility of the light-emitting layer. The electron mobility of the light-emitting layer is equal to or greater than an effective electron mobility of the functional layer. A highest occupied molecular orbital (HOMO) level of a first functional material included in the light-emitting layer is at least 0.4 eV greater than a HOMO level of a second functional material included in the functional layer.

Organic el element, and organic el display panel including light- emitting layer and functional layer with specific hole and electron mobilities relationship

Disclosed is a method for manufacturing an organic EL display panel in which a plurality of organic electroluminescence elements each including an organic layer are arranged on an upper side of a substrate. The method includes applying an ink obtained by dissolving or dispersing an organic material in a solvent to a preset application area over the substrate, and cooling the ink applied in the applying within a period until the ink is dried, to lower an ink temperature to a second temperature lower than a first temperature of the ink at a time of application thereof.

Method and apparatus for manufacturing organic el display panel

A CR snubber circuit capable of increasing a reduction effect of the effective inductance component and suppressing a ringing component generated at the time of switching the switching element is obtained. A first current path formed on one surface of the substrate and a second current path formed on the other surface, which is the opposite side of the one surface of the substrate, are opposed to each other with the substrate being sandwiched therebetween, and the capacitorand the resistorare arranged such that current flows in opposite directions in the first current path and the second current path, and a band elimination filter is formed by the capacitor, the resistor, and an effective inductance component obtained by coupling an inductance component included in the first current path and an inductance component included in the second current path.

CR snubber circuit

A power conversion device including sub-inverters, each connected in series with respective phase of a three-phase main inverter including a smoothing capacitor, which is fed from a power supply via a converter, as a DC input thereof, and feeds power to a load using the sum of outputs of the inverters. A manipulative quantity is determined so that the DC voltage at each of smoothing capacitors which is an input of each of the sub-inverters will follow a command value. The manipulative quantity is added to an output voltage command for the three-phase main inverter, and is subtracted from an output voltage command for the sub-inverters. Thus, power is shifted from the three-phase main inverter to the smoothing capacitors of the sub-inverters.

Power conversion device

Growing community of inventors

Tokyo, Japan

Yasuhiro Sekimoto