SonyGranted patentChips & hardwareInterest 4/10

Sony patents light-emitting element with reflective film for better displays

Patent drawing from the official filing.

Sony describes a light-emitting element that uses a reflective film with a hole to guide light from the display source. The design places this film between protective layers and a unit that controls the light path to improve how light exits the element.

Why it mattersThis is a specific hardware improvement for display technology that could help make screens brighter or more efficient, though it is a detailed technical update rather than a new product.

In the filing’s own words

A light emitting element includes a light emitting unit and an optical path control unit provided above the light emitting unit, wherein a light reflection film including an opening is disposed between the light emitting unit and the optical path control unit. The light emitting element also includes a protective layer and a planarization layer between the light emitting unit and the optical path control unit from a side of the light emitting unit.

What exactly they claim (claim 1)

1. A light emitting element, comprising: a light emitting unit; and an optical path control unit above the light emitting unit; a protective layer and a planarization layer between the light emitting unit and the optical path control unit from a side of the light emitting unit; and a light reflection film between the protective layer and the planarization layer, wherein the light reflection film includes an opening, and the light reflection film has a convex shape in a direction away from the light emitting unit.

Facts

Company: Sony (SONY GROUP CORPORATION)
Official title: Light emitting element and display apparatus
Patent number: US12765240B2
Application number: 18546485
Filed: Feb 7, 2022
Granted: Oct 13, 2026
Inventors: 1
Claims: 18

Classified under

H10K 59/878 Electricity & electronicsH10K 50/00 Electricity & electronicsH10K 50/844 Electricity & electronicsH10K 50/854 Electricity & electronicsH10K 50/856 Electricity & electronicsH10K 50/858 Electricity & electronics

Read the full filing (official PDF) ↗ Open in the Patent Tracker

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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.