Organic light emitting diode display device

By adopting a three-layer structure fanout wiring design, the superimposed structure solves the problem that fanout wiring design in OLED display devices is difficult to simultaneously reduce dead zones and avoid short circuits, achieving lower wiring resistance and smaller dead zones.

CN110854156BActive Publication Date: 2025-04-04SAMSUNG DISPLAY CO LTD
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Patent Information

Application Number
CN201910767607.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2018-08-20
Filing Date
2019-08-20
Publication Date
2025-04-04
Estimated Expiration
2039-08-20

AI Technical Summary

Technical Problem

In the existing OLED display devices, it is difficult to simultaneously reduce dead zones and avoid short circuits.

Method used

The fan-out wiring design adopts a three-layer structure, including lower fan-out wiring, middle fan-out wiring and upper fan-out wiring, reduces wiring resistance and prevents short circuits through the stacked structure.

Benefits of technology

It effectively reduces wiring defects and dead zone sizes of OLED display devices, and also reduces the resistance of fanout wiring.

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Abstract

An organic light emitting diode ("OLED") display device is provided, comprising: a substrate having a display area and a pad area, the display area comprising a light emitting area and a peripheral area, the pad area being located on one side of the display area; a plurality of light emitting structures being located on the substrate in the light emitting area; and a plurality of fan-out wirings, the plurality of fan-out wirings comprising: a lower fan-out wiring being located on the substrate in the peripheral area; a middle fan-out wiring being located on the lower fan-out wiring, the middle fan-out wiring overlapping at least a portion of the lower fan-out wiring; and an upper fan-out wiring being located on the middle fan-out wiring, the upper fan-out wiring overlapping at least a portion of the lower fan-out wiring.
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