Electronic device with reduced non-device edge area

Patent metadata

Field	Value
Publication number	US-11018319-B2
Application number	US-201916654346-A
Country	US
Kind code	B2
Filing date	Oct 16, 2019
Priority date	Mar 16, 2012
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

A first product as disclosed herein includes multiple devices, such as OLEDs, which are moveably connected to one another. The devices may be moveable from a first position in which they are stacked, closed, rolled, or the like, to a second expanded position in which they may be usable together as a single device. Active areas of the devices may be disposed within 3 mm from each adjacent or included active area when the device is in the first position, the second position, or both. Each active device may include a barrier film that covers at least a portion of the substrate and/or the active area of one or more of the devices.

First claim

What is claimed is:

1. A method comprising:
providing a first device over a first substrate portion, the first device having an active area and an inactive area;
depositing a first barrier film covering at least a portion of a first side of the first substrate portion, and at least a portion of a first edge of the first substrate portion where the first side meets a first surface of the first substrate portion;
depositing a second barrier film covering at least a portion of a first side of a second substrate portion, and at least a portion of a first edge of the second substrate portion where the first side meets a first surface of the second substrate portion; and
hingedly connecting the first substrate portion to the second substrate portion.

2. The method of claim 1 , further comprising:
obtaining a substrate comprising the first substrate portion and the second substrate portion; and
subsequent to the step of hingedly connecting the first substrate portion to the second substrate portion, separating the substrate to form the first substrate portion and the second substrate portion.

3. The method of claim 1 , wherein the second substrate portion is physically separate from the first substrate portion prior to the step of hingedly connecting the first substrate portion to the second substrate portion.

4. The method of claim 1 , wherein at least a portion of the active area of the first device is disposed within 0.1 mm of the first edge of the first substrate portion.

5. The method of claim 4 , further comprising providing a second device over the second substrate portion, the second device having an active area and an inactive area, wherein at least a portion of the active area of the second device is disposed within 0.1 mm of the first edge of the second substrate portion.

6. The method of claim 5 , wherein at least a portion of the active area of the first device is disposed within 1.0 mm of at least a portion of the active area of the second device, in at least one configuration of the first substrate and the second substrate via the hinged connection.

7. The method of claim 1 , wherein the second substrate portion is physically connected to the first substrate portion prior to the step of hingedly connecting the first substrate portion to the second substrate portion, the method further comprising:
separating the first substrate portion and the second substrate portion subsequent to the step of hingedly connecting the first substrate portion to the second substrate portion.

8. A method comprising:
providing 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 first surface of the substrate, the device having a second side, wherein at least a first portion of the second side is disposed not more than 3.0 mm from the first edge; and
after providing the substrate, depositing a first barrier film so as to cover 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.

9. The method of claim 8 , wherein at least the first portion of the second side is disposed not more than 2.0 mm from the first edge.

10. The method of claim 9 , wherein at least the first portion of the second side is disposed not more than 1.0 mm from the first edge.

11. The method of claim 10 , wherein at least the first portion of the second side is disposed not more than 0.5 mm from the first edge.

12. The method of claim 11 , wherein at least the first portion of the second side is disposed not more than 0.1 mm from the first edge.

13. The method of claim 8 ,
wherein the device comprises an active device area; and
wherein at least a portion of the active device area of the device is disposed within 0.1 mm from the first edge of the substrate.

14. The method of claim 8 , wherein the step of providing the substrate comprises:
creating a plurality of notches on the first surface of the substrate;
after creating the plurality of notches, disposing a plurality of devices over the first surface of the substrate such that each of the plurality of devices is separated from each of the other devices by at least one of the plurality of notches.

15. The method of claim 8 , wherein the first barrier film comprises a mixture of polymeric material and non-polymeric material.

16. The method of claim 8 , wherein the step of providing a substrate comprises depositing the device over the entire first surface of the substrate, through a mask having an opening that is larger than the first surface of the substrate.

17. The method of claim 8 , wherein the step of providing a substrate comprises:
depositing the device over the first surface of the substrate; and
after the device is deposited, separating the substrate and the device at a plurality of places.

18. The method of claim 8 , wherein the step of separating the substrate and the device at a plurality of places is performed after depositing the first barrier film.

19. The method of claim 8 , further comprising the step of forming a plurality of conductive paths from the first surface of the substrate to a second surface of the substrate.

Assignees

• Universal Display Corp

Inventors

• Ma Ruiqing
• Krall Emory
• Paynter Jason
• Silvernail Jeffrey

Classifications

• H10W90/00

  Package configurations · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K50/80

  Constructional details · CPC title

• H10K59/8731 Primary

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title