Display device

US2025194377A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2025194377-A1
Application numberUS-202418969274-A
CountryUS
Kind codeA1
Filing dateDec 5, 2024
Priority dateDec 12, 2023
Publication dateJun 12, 2025
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

According to one embodiment, in a display device, a first anode of a first pixel includes a first reflective electrode and a first transparent electrode, a second anode of a second pixel includes a second reflective electrode and a second transparent electrode, a third anode of a third pixel includes a third reflective electrode and a third transparent electrode, and a first thickness of the first transparent electrode, a second thickness of the second transparent electrode, and a third thickness of the third transparent electrode are less in this order.

First claim

Opening claim text (preview).

What is claimed is: 1 . A display device comprising: a plurality of pixels including first pixels that emit red light, second pixels that emit green light, and third pixels that emit blue light; and a bank provided between each adjacent pair of the plurality of pixels, wherein each of the plurality of pixels comprises, on a base, an anode including a reflective electrode and a transparent electrode, an organic EL layer provided on the anode, a protective layer provided to cover a side surface of the organic EL layer, and a cathode disposed in an aperture of the protective layer and the bank, so as to be in contact with the organic EL layer, the first pixel comprises a first anode including a first reflective electrode and a first transparent electrode, the second pixel comprises a second anode including a second reflective electrode and a second transparent electrode, the third pixel comprises a third anode including a third reflective electrode and a third transparent electrode, and a first thickness of the first transparent electrode, a second thickness of the second transparent electrode, and a third thickness of the third transparent electrode are less in this order. 2 . The display device according to claim 1 , wherein the first transparent electrode and the second transparent electrode contain indium tin oxide or indium zinc oxide. 3 . The display device according to claim 1 , wherein the protective layer is formed of aluminum oxide. 4 . The display device according to claim 1 , wherein the reflective electrode contains silver or a molybdenum-tungsten alloy.

Assignees

Inventors

Classifications

  • Top emission · CPC title

  • Transparent cathodes, e.g. comprising thin metal layers · CPC title

  • comprising red-green-blue [RGB] subpixels · CPC title

  • Multilayers, e.g. transparent multilayers · CPC title

  • Reflective anodes, e.g. ITO combined with thick metallic layers · CPC title

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Frequently asked questions

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What does patent US2025194377A1 cover?
According to one embodiment, in a display device, a first anode of a first pixel includes a first reflective electrode and a first transparent electrode, a second anode of a second pixel includes a second reflective electrode and a second transparent electrode, a third anode of a third pixel includes a third reflective electrode and a third transparent electrode, and a first thickness of the fi…
Who is the assignee on this patent?
Japan Display Inc
What technology area does this patent fall under?
Primary CPC classification H10K59/80518. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Jun 12 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).