US 11,056,668 B2Granted

Display device

AssigneeJapan Display Inc.

InventorsMitsuhide Miyamoto, Hajime Akimoto, Yuko Matsumoto, Yusuke Tada

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Abstract

A display device has a first electrode provided corresponding to each of a plurality of pixels in a region in which the plurality of pixels is provided, a second electrode provided over the plurality of pixels and extending to a contact region provided outside the pixel region, a light emitting layer provided between the first electrode and the second electrode, a third electrode provided in the contact region, an organic insulating layer covering the third electrode and provided with a contact hole exposing the third electrode, and a connection portion between the second electrode and the third electrode in the contact hole, wherein the maximum distance between any two points on the outer periphery of the connection portion is 1 μm or more and 100 μm or less.

Claims4

Dependent claims

A display device comprising:

a first electrode provided corresponding to each of a plurality of pixels in a pixel region in which the plurality of pixels is provided;
a second electrode provided over the plurality of pixels and extending to a contact region adjacent to the pixel region in a peripheral region provided surrounding the pixel region;
a light emitting layer provided between the first electrode and the second electrode;
a third electrode provided in the contact region and electrically connected to the second electrode;
and
a plurality of island-shaped organic layers provided in the contact region, wherein
at least one of the plurality of island-shaped organic layers overlaps with a circular region which completely overlaps with the contact region, and
a radius of the circular region is 1 μm or more and 100 μm or less.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/445,782Filed 19 Jun 2019
Priority: JP JP2018-11790421 Jun 2018
Published: US 2019/0393442 A126 Dec 2019
Granted: 6 Jul 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H10K 59/124
Active-matrix OLED [AMOLED] displays: insulating layers formed between TFT elements and OLED elements
H10K 50/11
OLEDs or polymer light-emitting diodes [PLED]: characterised by the electroluminescent [EL] layers
H10K 59/131
Active-matrix OLED [AMOLED] displays: interconnections, e.g. wiring lines or terminals
H10K 59/8052
Electrodes: cathodes