Toshiba Matsushita Display Technology Co., Ltd.

Other

Japan Display Central Inc.

Norihisa Maeda

Hirofumi Kubota

Masuyuki Oota

Satoshi Okutani

Masashi Takahashi

Takeshi Ikeda

Kenji Mitsui

Hideyuki Murata

According to one embodiment, an organic EL device includes a first organic EL element, a second organic EL element and a third organic EL element. The first organic EL element has a first electrode, a second electrode, and a first emitting layer. The second organic EL element has a third electrode, a fourth electrode, and a second emitting layer. At least a part of the first emitting layer extends on the second emitting layer. A third organic EL element has a fifth electrode, a sixth electrode, and a third emitting layer. At least a part of the first and the second emitting layers extends on the third emitting layer. A thickness of the first emitting layer between the first and the second electrodes is thicker than a thickness of the first emitting layer extending on the second and the third emitting layers.

Organic EL device and method for manufacturing the same

An organic EL display includes a substrate, and organic EL elements arranged on the substrate. Each organic EL element includes an anode, a cathode, an emitting layer made of an organic material and interposed therebetween, and a hole transporting layer made of an organic material and interposed between the emitting layer and the anode. The hole transporting layer includes a first layer and a second layer facing the substrate with the first layer interposed therebetween. The second layer is equal in compositions with the first layer and different in degrees of crystallinity from the first layer.

Organic EL display and method of manufacturing the same

A method of manufacturing an organic EL element includes applying a reverse bias to an organic EL element with an inverse layered structure until a current density of the organic EL element at an impressed voltage of 10 V reaches 0.075 mA/cmor more.

Method of manufacturing organic EL element

A method of manufacturing an organic EL display includes forming organic EL elements on a first portion of a first substrate, forming a frame-shaped sealing resin layer on the first portion such that the sealing resin layer surrounds the organic EL elements, putting the first substrate and a second substrate together such that the sealing resin layer is interposed between the first and second substrates, thereby forming a prebroken panel, and breaking the first substrate of the prebroken panel along a boundary between the first portion and a second portion of the first substrate, wherein, before forming the sealing resin layer, a release layer is formed on the second portion at a position adjacent to the boundary, the release layer including a layer made of a material equal to a material of a layer included in an organic layer of the organic EL element.

Growing community of inventors

Ishikawa-gun, Japan

Norihisa Maeda