Organic el display apparatus and method of manufacturing the same

Abstract

The invention provides an organic EL display apparatus and method of manufacturing the same. The organic EL display apparatus includes: a substrate; plural organic EL devices formed over the substrate, each of the organic EL devices including a first electrode, an organic layer, and a second electrode which are provided in order from a side of the substrate, the organic layer including at least alight emitting layer; plural pixel isolation films, each of which is an insulating film and formed between the first electrodes located adjacent to each other; plural auxiliary wirings which are formed on the plural pixel isolation films and include a conductive material; ; and plural partition walls which are formed on the auxiliary wirings and include one of an insulator and a conductor which is reverse-tapered to have reverse-tapered portions, in which the plural auxiliary wirings and the second electrodes are electrically connected with each other in positions directly under the reverse-tapered portions of the plural partition walls.

Description

technical field The present invention relates to an organic electroluminescent (EL) display device and a method for manufacturing the organic EL display device. Background technique In recent years, an organic EL display device using an organic EL device made of a light-emitting material has been actively developed and researched as a display device having advantages such as high-speed response and wide viewing angle. When an organic EL display device including a large number of organic EL devices is to be driven by an active matrix circuit, it is necessary to combine each organic EL device (pixel) with a group of thin film transistors for controlling the current flowing into each pixel. (TFT) connection. In an active matrix organic EL display device, minute transistors and capacitors are arranged over a substrate. Therefore, in order to improve the aperture ratio, it is desirable to employ a so-called top emission type in which light emitted from each pixel is extracted...

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that a decrease in display performance due to a voltage gradient occurs, such as a decrease in luminous intensity at a central region of the display surface

However, in the case of an organic EL display device using a top-emission type organic EL device that extracts light from the side opposite to the substrate, it is difficult to obtain high light extraction efficiency due to a decrease in light transmittance.

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