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US 12,724,179 B2Granted
Light extracting substrate for organic light emitting diode
AssigneeVitro Flat Glass LLC
InventorSongwei Lu
Life of this patent
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Abstract
A light extraction substrate includes a glass substrate having a first surface and a second surface. A first light extraction region can be defined on and/or adjacent the first surface. The first light extraction region includes nanoparticles. A second light extraction region can be defined on at least a part of the second surface. The second light extraction region has a surface roughness of at least 10 nm.
Claims20
A substrate comprising:
- a glass substrate having a first surface and a second surface;
- a first region on and/or adjacent the first surface, the first region comprising nanoparticles embedded in the glass substrate at a depth of 0 to 50 microns;
- and
- a second region on at least a portion of the second surface,
- wherein the first surface of the glass substrate is smoother than the second surface of the glass substrate,
- wherein the first surface has an average surface roughness in the range of 1 nm to 100 nm, and
- wherein the second surface has an average surface roughness in the range of 50 nm to 500 nm.
4 more elements
A substrate comprising:
- a glass substrate having a first surface and a second surface;
- a first region on and/or adjacent the first surface, the first region comprising nanoparticles embedded in the glass substrate at a depth of 0 to 10 microns;
- and
- a second region on at least a portion of the second surface,
- wherein the first surface of the glass substrate is smoother than the second surface of the glass substrate,
- wherein the first surface has an average surface roughness in the range of 1 nm to 50 nm, and
- wherein the second surface has an average surface roughness in the range of 50 nm to 500 nm.
4 more elements
A substrate comprising:
- a glass substrate having a first surface and a second surface;
- a first region on and/or adjacent the first surface, the first region comprising nanoparticles embedded in the glass substrate at a depth of 0 to 50 microns;
- and
- a second region on at least a portion of the second surface,
- wherein the first surface of the glass substrate is smoother than the second surface of the glass substrate,
- wherein the first surface has an average surface roughness in the range of 1 nm to 100 nm,
- wherein the second surface has an average surface roughness in the range of 50 nm to 500 nm, and
- wherein the first region provides haze in the range of 10% to 40%.
5 more elements
Dependencies are inferred from the claim text.