# US 10,483,487 B2 · Electronic device with reduced non-device edge area

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- Number: US 10,483,487 B2
- Document ID: US10483487B2
- Status: Granted
- Kind: B2
- Application number: 14/582,578
- Filed: 2014-12-24
- Published: 2015-04-23
- Granted: 2019-11-19
- Earliest claimed: 2013-03-15
- Assignees: The Trustees of Princeton University
- Applicants: Universal Display Corporation; Princeton University Office of Technology and Trademark Licensing
- Inventors: Prashant Mandlik; Ruiqing Ma; Jeffrey Silvernail; Julia J. Brown; Lin Han; Sigurd Wagner; Luke Walski
- Web page: https://patentgrep.com/patent/US10483487B2

## CPC

- H10K 59/90: Assemblies of multiple devices comprising at least one organic light-emitting element
- H10K 50/80: Constructional details
- H10K 50/844: Encapsulations
- H10K 59/32: Stacked devices having two or more layers, each emitting at different wavelengths
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10W 90/00: Package configurations
- H10K 50/805: Electrodes
- H10K 71/851: {Division of substrate}
- Y02E 10/549: Organic PV cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A first product may be provided that comprises a substrate having a first surface, a first side, and a first edge where the first surface meets the first side; and a device disposed over the substrate, the device having a second side, where at least a first portion of the second side is disposed within 3 mm from the first edge of the substrate. The first product may further comprise a first barrier film that covers at least a portion of the first edge of the substrate, at least a portion of the first side of the substrate, and at least the first portion of the second side of the device.

## Claims

### Claim 1

A method comprising:
obtaining a flexible substrate having a first surface;
creating a notch on the first surface of the flexible substrate to create a first wall of the notch and a first edge where the first wall meets the first surface;
after creating the notch, disposing a plurality of organic light emitting diodes (OLEDs) over the first surface of the flexible substrate such that a first OLED of the plurality of OLEDs is separated from a second OLED of the plurality of OLEDs by the notch, wherein at least the first OLED has a second side and at least a first portion of the second side is disposed not more than 1.0 mm from the first edge;
after providing the flexible substrate, depositing a first barrier film so as to cover at least a portion of the first edge, at least a portion of the first wall of the notch, and a portion of each OLED of the plurality of OLEDs other than those in contact with the first surface of the flexible substrate; and
after the first barrier film is deposited, breaking the flexible substrate along the notch such that the first barrier film continues to cover the portions of the OLED other than those in contact with the first surface of the flexible substrate, including the portions of the first edge of the flexible substrate, so that the first barrier film is only in physical contact with the OLED and a portion of the flexible substrate.

### Claim 2 (depends on 1)

The method of claim 1, wherein the notch has vertical walls relative to the first surface of the flexible substrate.

### Claim 3 (depends on 1)

The method of claim 1, wherein the notch has walls forming an obtuse angle with the first surface of the flexible substrate.

### Claim 4 (depends on 1)

The method of claim 1, wherein the first barrier film is a hybrid layer comprising a mixture of polymeric material and non-polymeric material, and the hybrid layer has a wetting contact angle in a range of 30° to 60°.

### Claim 5 (depends on 4)

The method of claim 4, wherein the polymeric material includes organosilicon polymers selected from a group consisting of a polysiloxane, polycarbosilane, and polysilane, and the non-polymeric material includes silicon oxides or silicon nitrides.

### Claim 6 (depends on 1)

The method of claim 1, wherein the flexible substrate is selected from metal foils or plastics.