Wuhan Tianma Micro-electronics Co., Ltd

Tianma Japan, Ltd.

Xiamen Tianma Micro-electronics Co., Ltd.

Keita Hamada

Shigeru Mori

Hiroshi Tanabe

Hiromu Hanashima

A first stack-structured light-emitting element includes light-emitting units and a first charge generation layer between the light-emitting units. A second stack-structured light-emitting element includes light-emitting units and a second charge generation layer between the light-emitting units. Each of the first and second charge generation layers consists of one or more charge generation component layers. A first end region of the first charge generation layer and a second end region of the second charge generation layer overlap above the top face of the element separation layer. In the overlap region, an end region of a component layer of the first or second stack-structured light-emitting element configured to block charges of either polarity is interposed between charge generation component layers of the first and second charge generation layers configured to generate charges of the same polarity as the charges to be blocked by the component layer.

OLED light-emitting device, display device, electronic device, and method of manufacturing OLED light-emitting device

An organic light-emitting device includes an anode electrode and a cathode electrode that are arranged facing each other; a light-emitting layer arranged between the anode electrode and the cathode electrode; and a hole transport layer arranged between the anode electrode and the light-emitting layer, and including one or more layers. A layer, of the one or more layers of the hole transport layer, contacting the light-emitting layer has a HOMO energy levelH that is higher than a HOMO energy levelH of the light-emitting layer. A difference ΔE1 between the HOMO energy levelH of the layer contacting the light-emitting layer of the hole transport layer and the HOMO energy levelH of the light-emitting layer is 0.32 eV or less.

Organic light-emitting device, display device, electronic apparatus, onboard display, and vehicle

A display device includes a substrate and a plurality of first light-emitting elements having a microcavity structure on the substrate. Each of the plurality of first light-emitting elements includes a first light-emitting film and a first upper electrode and a first lower electrode sandwiching the first light-emitting film. The peak wavelength of an emission spectrum of the first light-emitting film is in a wavelength range where the luminosity curve slopes negatively. Within a wavelength range where the peak wavelength of a multiple interference spectrum caused by the microcavity structure varies when the viewing angle varies from 0&#xb0; to 60&#xb0;, the luminosity curve slopes negatively, and the emission spectrum slopes positively.

Display device

Each of subpixels includes: an upper electrode; a lower electrode; an organic light-emitting layer sandwiched between the upper electrode and the lower electrode; and a lower carrier supply layer sandwiched between the lower electrode and the organic light-emitting layer. The lower carrier supply layer is configured to: make contact with the lower electrode and the organic light-emitting layer, respectively; supply carriers from the lower electrode to the organic light-emitting layer; cover the lower electrode entirely in an opening of the pixel defining layer; and have an edge at a top surface of the pixel defining layer surrounding the lower electrode. The organic light-emitting layer covers an entire surface of the lower carrier supply layer including the edge of the lower carrier supply layer.

Growing community of inventors

Kanagawa, Japan

Keita Hamada