Electro-optical device and electronic apparatus

Abstract

This invention provides an electro-optical device having organic light emitting diode, comprising: a plurality of first electrodes mounted on a substrate; a partition having a first partition and a second partition; the first partition mounted at the circumference section of a plurality of first electrodes, consisting a side part and an upper part and having lyophily; the second partition formed on the upper part of the first partition and having lyophobicity; a functional layer mounted on the first electrode of the region surrounded by the first partition and the second partition, at least comprising an organic light emitting layer; a second electrode mounted on the function layer; a first opening section of the first partition is wider than a second opening section of the lower end of the second partition, thereby making a film thickness formed by drying liquid droplets filled in a liquid droplet ejection region surrounded by a partition be uniform.

Description

[0001] This application is a divisional application of the application number "200410092946.1", the filing date is November 11, 2004, and the invention title is "Electro-optical Device and Electronic Machine". technical field [0002] The present invention relates to an electro-optic device and a semiconductor device composed of an organic thin film. Furthermore, it also relates to an electronic device using an electro-optical device. Background technique [0003] In recent years, the development of electro-optical devices employing organic light emitting diodes (Organic Light Emitting Diodes (hereinafter referred to simply as "OLED elements" as appropriate) such as organic electroluminescent elements and light-emitting polymer elements as pixels has progressed. An OLED element has a structure in which an organic functional layer such as a light-emitting layer is interposed between an anode and a cathode. Recently, development of an electro-optical device employing a method...

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Problems solved by technology

Therefore, there is a problem that the droplet ejection region R surrounded by the partition walls 242 S When the droplet inside is dried and its surface is lowered, the droplet 245a will remain on the flat portion 251.

As a result, the film thickness of the organic EL thin film 245 after the droplets are dried becomes smaller than that in the droplet ejection region R. S The peripheral part becomes thinner and the film thickness is uneven

Moreover, there is also a problem that the film thickness of the organic EL thin film 245 becomes uneven around the portion where the first partition wall 243 and the organic EL thin film 245 are in contact.

[0007] In conventional electro-optic devices, in order to increase the area of ​​the light-emitting region, it is necessary to make the droplet discharge region a purely rectangular shape. However, in the rectangular droplet discharge region, an organic EL with a uniform height from the substrate surface is fabricated. Thin films are more difficult

As mentioned above, the non-uniformity of film thickness and surface height of these organic EL thin films becomes the cause of non-uniformity of luminance.

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