Organic light emitting display device and manufacturing method thereof
AssigneeHitachi Displays, Ltd.
InventorsShingo Ishihara, Eiji Matsuzaki
Life of this patent
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Abstract
The present invention provides an organic light emitting device in which an upper transparent electrode 10 of an organic light emitting device 2 is connected electrically at a contact hole portion 122 to a current supply line 121 disposed in the same layer as that of and extending in parallel with a gate line 106. That is, a hole transport layer 5 and an electron transport layer 9 of the organic light emitting device 2 are formed over the entire display region, and then a contact hole portion 122 is removed to electrically connect the current supply line 121 and the upper transparent electrode 10, thereby decreasing unevenness of luminance due to wiring resistance of the upper transparent electrode.
Claims12
An organic light emitting display device in which a driving layer containing a driving element for driving an organic light emitting element and the organic light emitting element are sequentially stacked above a substrate, and an upper transparent electrode of out a pair of electrodes putting an organic layer of the organic light emitting element therebetween and a current supply line formed in the driving layer are connected electrically,
- wherein the organic layer excluding a light emitting layer therefrom is formed over the entire display region, and a portion of the organic layer excluding the light emitting layer therefrom is removed so that the upper transparent electrode and the current supply line are connected electrically.
An organic light emitting display device in which a driving layer containing a driving element for driving an organic light emitting element and the organic light emitting element are sequentially stacked above a substrate, and an upper transparent electrode of out a pair of electrodes putting an organic layer of the organic light emitting element therebetween and a current supply line formed in a layer in which the other lower electrode of out the pair of electrodes is formed are connected electrically,
- wherein the organic layer excluding a light emitting layer therefrom is formed over the entire display region, and a portion of the organic layer excluding the light emitting layer therefrom is removed so that the upper transparent electrode and the current supply line are connected electrically.
A method of manufacturing an organic light emitting display device in which a driving layer containing a driving element for driving an organic light emitting element and the organic light emitting element are sequentially stacked above a substrate, and an upper transparent electrode out of a pair of electrodes putting an organic layer of the organic light emitting element therebetween and a current supply line formed in a layer different from that of the upper transparent electrode are connected electrically, wherein
- the method includes the steps of forming the organic layer excluding a light emitting layer therefrom over the entire display region and then removing the electrically connected portion between the upper transparent electrode and the current supply line.
Dependencies are inferred from the claim text.