Organic light-emitting display device

A light-emitting display and organic light-emitting layer technology, which is applied to semiconductor devices, electrical components, circuits, etc., can solve the problems of current magnitude difference, unfavorable light emission of organic light-emitting elements, and inconsistent display brightness of display areas
CN104064686AActive Publication Date: 2014-09-24WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN TIANMA MICRO ELECTRONICS CO LTD
Publication Date
2014-09-24

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Abstract

The invention provides an organic light-emitting display device. The organic light-emitting display device comprises a first substrate, a second substrate, a plurality of organic light-emitting elements and a conductive layer. The first substrate and the second substrate are arranged oppositely. The organic light-emitting elements are arranged on the side, facing the second substrate, of the first substrate. Each organic light-emitting element comprises an anode arranged on the first substrate, an organic light-emitting layer arranged on the anode and a cathode arranged on the organic light-emitting layer. The conductive layer is arranged on the side, facing the first substrate, of the second substrate. The conductive layer makes contact with the cathodes. Due to the fact that the conductive layer makes contact with the cathodes, sheet resistance of cathode layers can be reduced, and voltage drop, on the cathode layers, of driving signals can be reduced. Thus, the difference of values of currents flowing through all the organic light-emitting elements is reduced, light emitted by the organic light-emitting elements are more similar in intensity, and the display brightness of the whole organic light-emitting device tends to be uniform.
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Description

technical field

[0001] The present invention relates to the field of organic light-emitting display, and more specifically, relates to an organic light-emitting display device displaying a more uniform top emission structure. Background technique

[0002] Organic Light Emitting Display (OLED, Organic Light Emitting Display) is a thin-film light-emitting device made of organic semiconductor material and driven by DC voltage, which has the characteristic of self-luminescence.

[0003] An organic light-emitting display device with self-luminous properties includes an organic light-emitting element including an organic light-emitting layer, an anode, and a cathode. Organic light-emitting display devices are classified into top-emission structures and bottom-emission structures according to different light emitting directions of organic light-emitting elements. The light emitted by the organic light-emitting element in the top-emission organic light-emitting display device is em...

Claims

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