Organic light-emitting diode display with glass encapsulation and peripheral welded plastic seal
First Claim
1. A display having a peripheral edge, comprising:
- first and second display layers;
thin-film transistor circuitry between the first and second display layers, wherein thin-film transistor circuitry comprises light-emitting diodes;
a moisture-barrier ring of thermoplastic polymer that is attached between the first and second display layers to prevent moisture from reaching the thin-film transistor circuitry, wherein the first display layer comprises a substrate layer on which the thin-film transistor circuitry is formed; and
a polarizer, wherein the second display layer is interposed between the polarizer and the first display layer, and wherein the moisture-barrier ring extends between the substrate layer and the second display layer to seal the peripheral edge of the display.
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Accused Products
Abstract
A display may have thin-film transistor circuitry that includes organic light-emitting diodes. The thin-film transistor circuitry may be formed on a substrate. First and second thin-film inorganic moisture barrier layers may be deposited on top of the thin-film transistor circuitry. An organic planarization layer may be interposed between the first and second thin-film inorganic moisture barrier layers. A moisture barrier glass layer may be attached to the second thin-film inorganic moisture barrier layer with a layer of liquid adhesive. The display may have functional layers such as a touch sensor and circular polarizer that are interposed between a cover glass layer and the moisture-barrier glass layer. A thermoplastic polymer moisture barrier ring that runs around the peripheral edge of the display may be laser welded between the moisture barrier glass layer and the substrate.
20 Citations
21 Claims
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1. A display having a peripheral edge, comprising:
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first and second display layers; thin-film transistor circuitry between the first and second display layers, wherein thin-film transistor circuitry comprises light-emitting diodes; a moisture-barrier ring of thermoplastic polymer that is attached between the first and second display layers to prevent moisture from reaching the thin-film transistor circuitry, wherein the first display layer comprises a substrate layer on which the thin-film transistor circuitry is formed; and a polarizer, wherein the second display layer is interposed between the polarizer and the first display layer, and wherein the moisture-barrier ring extends between the substrate layer and the second display layer to seal the peripheral edge of the display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of forming a display that has a peripheral edge, comprising:
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forming thin-film transistor circuitry on a display substrate, wherein the thin-film transistor circuitry includes organic light-emitting diodes; depositing an inorganic moisture barrier layer over the thin-film transistor circuitry; applying a layer of adhesive to a moisture-barrier glass layer; attaching the moisture-barrier glass layer to the inorganic moisture barrier layer with the layer of adhesive such that the inorganic moisture barrier layer is interposed between the moisture barrier glass layer and the thin-film transistor circuitry; and attaching a thermoplastic ring around the peripheral edge between the moisture-barrier glass layer and the display substrate so that the thermoplastic ring surrounds the organic light-emitting diodes. - View Dependent Claims (17, 18)
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19. An organic light-emitting diode display, comprising:
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a substrate layer; thin-film transistor circuitry including organic light-emitting diodes on the substrate layer; a first thin-film moisture barrier layer on the thin-film transistor circuitry; an organic planarization layer on the first thin-film moisture barrier layer; a second thin-film moisture barrier layer on the thin-film transistor circuitry; a moisture-barrier glass layer; and a thermoplastic polymer moisture-barrier ring that is attached between the substrate layer and the moisture-barrier glass layer and that surrounds the thin-film transistor circuitry. - View Dependent Claims (20, 21)
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Specification