Organic electroluminescent device, manufacturing method therefor, and electronic devices therewith
AssigneeSeiko Epson Corporation
InventorsShunichi Seki, Katsuyuki Morii
Life of this patent
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Abstract
A method for manufacturing an organic EL device in accordance with the invention includes: coating a composition including an organic EL material on a plurality of electrodes to form an organic EL layer on each electrode; defining an effectively optical area in which the plurality of electrodes are formed; and defining a coating area which is broader than the effectively optical area, on which the composition including an organic EL material is to be coated. According to this method, a uniform display device without uneven luminance and uneven chrominance within a pixel or among a plurality of pixels in the effectively optical area can be obtained.
Claims26
An organic EL device, comprising:
- a first and second set of electrodes;
- an organic EL layer formed above each of the first and second set of electrodes;
- an effectively optical area in which the first set of electrodes is formed;
- a dummy area disposed around the effectively optical area, and not over the first set of electrodes in which the second set of electrodes is formed;
- and
- the second set of electrodes not being connected to any driving circuit elements.
An organic EL device, comprising:
- a set of electrodes;
- an effectively optical area in which the electrodes are formed;
- a dummy area disposed around the effectively optical area;
- an organic EL layer formed above each of the electrodes and above the dummy area;
- and
- a bank layer disposed between each electrode of the set of electrodes, the organic EL layer in the dummy area being disposed on a layer made of a same material as the bank layer.
An organic EL device, comprising:
- a first and second set of electrodes, the first set of electrodes being connected to at least one thin film transistor, while the second set of electrodes is not connected to at least one thin film transistor;
- an organic EL layer formed above each of the first and second set of electrodes;
- an effectively optical area in which the first set of electrodes is formed;
- and
- a dummy area disposed around the effectively optical area, in which the second set of electrodes is formed, the organic EL layer in the dummy area being disposed on the second set of electrodes.
An organic EL device, comprising:
- a first and second set of electrodes;
- an organic EL layer formed above each of the first and second set of electrodes;
- an effectively optical area in which the first set of electrodes is formed;
- and
- a dummy area disposed around the effectively optical area, in which the second set of electrodes is formed, adjacent portions of the organic EL layer being disposed at a constant pitch in both the effectively optical area and the dummy area.
An organic EL device, comprising:
- an effectively optical area having a first set of electrodes;
- a second set of electrodes formed outside the effectively optical area;
- the second set of electrodes not being connected to any driving circuit elements;
- and
- an organic EL layer formed on each of the first and second set of electrodes.
An EL device comprising:
- an optically active area including a plurality of pixels,
- a first EL layer disposed in the optically active area;
- a dummy area including a dummy pixel, being adjacent to the optically active area, the dummy pixel not being electrically connected to the plurality of pixels;
- and
- a second EL layer disposed in the dummy area.
Dependencies are inferred from the claim text.