Sony patents OLED screen layer that absorbs hydrogen to last longer
Sony describes a design for organic light-emitting diode (OLED) screens that uses a specific metal layer to absorb hydrogen. This layer sits beneath a transparent electrode to help prevent the screen material from degrading over time.
In the filing’s own words
Provided is a display device capable of suppressing deterioration in reliability. A display device includes a plurality of first electrodes, a second electrode facing the plurality of first electrodes, and an organic light-emitting layer provided between the plurality of first electrodes and the second electrode. Each of the first electrode includes a metal layer having a main surface facing the organic light-emitting layer, and a transparent electrode covering a main surface of the metal layer and a side surface of the metal layer and containing a transparent conductive oxide. The metal layer includes a first metal layer having a hydrogen absorption capacity, and a second metal layer provided on the first metal layer and facing the organic light-emitting layer with the transparent electrode interposed therebetween. A peripheral edge of the first metal layer is separated from the transparent electrode.
What exactly they claim (claim 1)
1. A display device comprising: a plurality of first electrodes; a second electrode facing the plurality of first electrodes; and an organic light-emitting layer provided between the plurality of first electrodes and the second electrode, wherein each of the first electrode includes: a metal layer having a main surface facing the organic light-emitting layer; and a transparent electrode covering a main surface of the metal layer and a side surface of the metal layer and containing a transparent conductive oxide, the metal layer includes: a first metal layer having a hydrogen absorption capacity; and a second metal layer provided on the first metal layer and facing the organic light-emitting layer with the transparent electrode interposed therebetween, and a peripheral edge of the first metal layer is separated from the transparent electrode.
Facts
- Company
- Sony (SONY SEMICONDUCTOR SOLUTIONS CORPORATION)
- Official title
- DISPLAY DEVICE, LIGHT-EMITTING DEVICE, AND ELECTRONIC APPARATUS
- Publication number
- US20260293429A1
- Application number
- 19682467
- Filed
- May 20, 2026
- Published
- Sep 24, 2026
- Inventors
- 1
- Claims
- 16
Classified under
H10K 50/818 Electricity & electronicsH10K 50/816 Electricity & electronicsH10K 59/80517 Electricity & electronicsH10K 59/80518 Electricity & electronicsMore from Sony in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.