Substrate with topological features for steering fluidic assembly LED disks
First Claim
Patent Images
1. A display panel, the display panel comprising:
- a substrate with a top surface;
a material layer disposed over the top surface of the substrate, wherein the material layer includes;
a plurality of wells, and wherein each of the plurality of wells extends to a first depth into the material layer;
at least one object steering feature surrounding two or more of the plurality of wells, wherein the object steering feature extends a second depth into the material layer, and wherein the second depth is less than the first depth; and
wherein the material layer includes a first sub-layer disposed over the top surface of the substrate and a second sub-layer disposed over the first sub-layer.
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Abstract
Embodiments are related to integrated circuit (IC) fabrication and, more particularly, to a fluidic assembly process for the placement of light emitting diodes on a direct-emission display substrate.
8 Citations
24 Claims
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1. A display panel, the display panel comprising:
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a substrate with a top surface; a material layer disposed over the top surface of the substrate, wherein the material layer includes; a plurality of wells, and wherein each of the plurality of wells extends to a first depth into the material layer; at least one object steering feature surrounding two or more of the plurality of wells, wherein the object steering feature extends a second depth into the material layer, and wherein the second depth is less than the first depth; and wherein the material layer includes a first sub-layer disposed over the top surface of the substrate and a second sub-layer disposed over the first sub-layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A display panel, the panel comprising:
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a substrate with a top surface; a material layer disposed over the top surface of the substrate, wherein the material layer includes a plurality of wells extending into the material layer and exposing the top surface of the substrate; and a material steering structure disposed over the material layer, wherein the material steering structure surrounds two or more of the plurality of wells, and wherein the two or more of the plurality of wells is part of a column of wells. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A display panel, the display panel comprising:
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a substrate with a planar surface; a layer disposed over the planar surface of the substrate, wherein the layer includes a plurality of wells extending a first depth into the layer; and a material steering structure disposed over the layer and extending a second depth from the layer, wherein the material steering structure surrounds two or more of the plurality of wells, and wherein the material steering structure is a slot with a cross-section greater than an opening of either of the two or more of the plurality of wells. - View Dependent Claims (22, 23, 24)
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Specification