Devices for substrate adhesion

Patent metadata

Field	Value
Publication number	US-10022937-B1
Application number	US-201414316724-A
Country	US
Kind code	B1
Filing date	Jun 26, 2014
Priority date	Jun 26, 2014
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

This disclosure describes methods and devices useful for adhering a first substrate of a display to a second substrate of the display. In example embodiments, a first plate may be sealed to the first substrate, and a second plate may be sealed to the second substrate. In addition, a layer of adhesive may be disposed between the first and second substrates to assist in adhering the first substrate to the second substrate. A pressure may then be applied to the first and second plates as well as the first and second substrates to assist in the adhesion process. In example embodiments, the first plate may assist in applying pressure proximate a perimeter of the first substrate such that the perimeter of the first substrate adheres to a perimeter of the second substrate.

First claim

The invention claimed is:

1. A display for an electronic device, comprising:
a first substantially rigid plate including a continuous, substantially planar bottom surface, the bottom surface having
a width extending from a first end of the first plate to a second end of the first plate opposite the first end, and
a length greater than the width;

a first substrate having a first surface and a second surface opposite the first surface, wherein the bottom surface faces the first surface of the first substrate;
a first substantially flexible spacer sealed to the first surface of the first substrate and extending from the first surface of the first substrate to the bottom surface, the first spacer defining at least part of a first gap extending from the bottom surface to the first surface of the first substrate;
a second substantially rigid plate having a second substantially flexible spacer extending therefrom;
a second substrate having a first surface and a second surface opposite the first surface of the second substrate, the second surface of the first substrate facing the second surface of the second substrate;
a substantially transparent conductive layer, comprising a common electrode of the display, disposed between the second surface of the first substrate and the second surface of the second substrate; and
a third spacer sealed to one of the first surface of the first substrate or the first surface of the second substrate, wherein;
the third spacer is disposed at a substantially central location on the one of the first surface or the second surface, and is surrounded by one of the first spacer or the second spacer,
the second spacer is sealed to the first surface of the second substrate, the second spacer forming at least part of a second gap extending from the second plate to the first surface of the second substrate,
at least one of the first gap or the second gap maintaining a fluid disposed within the at least one of the first gap or the second gap at a substantially ambient pressure as a pressure different from the substantially ambient pressure is applied to the first plate, the second plate, and at least a portion of the first and second substrates.

2. The display of claim 1 , wherein the first spacer is positioned adjacent to a perimeter of the first surface of the first substrate.

3. The display of claim 1 , wherein the third spacer defines at least part of a third gap at the substantially central location, and wherein the third gap includes air.

4. The display of claim 1 , the third spacer applying a first pressure at the substantially central location as the pressure different from the substantially ambient pressure is applied, wherein
the substantially transparent conductive layer is disposed on the second surface of the first substrate or the second surface of the second substrate, and
a portion of the second surface of the first substrate, aligned with the substantially central location, is sealed to a portion of the second surface of the second substrate aligned with the substantially central location.

5. The display of claim 1 , wherein the first plate comprises a first substantially rigid material, and wherein the first spacer comprises a second material different from the first substantially rigid material.

6. The display of claim 4 , wherein air disposed within the at least one of the first and second gaps, and between the third spacer and the one of the first spacer or the second spacer, is at a second pressure different from the first pressure.

7. A display for an electronic device, comprising:
a first substrate having an upper surface and an opposing lower surface;
a second substrate having an upper surface and an opposing lower surface;
a first plate having a first spacer attached to a surface of the first plate;
a second plate having a second spacer attached to a surface of the second plate, wherein
the first spacer, a portion of the surface of the first plate, and a portion of the upper surface of the first substrate together define a first sealed region, wherein the first plate comprises a first substantially rigid material, and wherein the first spacer comprises a second material different from the first substantially rigid material,
the second spacer, a portion of the surface of the second plate, and a portion of the lower surface of the second substrate together define a second sealed region, and
the first substrate is positioned such that the lower surface of the first substrate faces the upper surface of the second substrate;

a third spacer sealed to one of the upper surface of the first substrate or the lower surface of the second substrate, wherein the third spacer is
disposed at a substantially central location on the one of the upper surface of the first substrate or the lower surface of the second substrate; and

a substantially transparent conductive layer, comprising a common electrode of the display, disposed between the lower surface of the first substrate and the upper surface of the second substrate;
an adhesive adhering the first substrate to the second substrate, the adhesive being disposed between the lower surface of the first substrate and the upper surface of the second substrate.

8. The display of claim 7 , wherein the upper surface of the first substrate, the lower surface of the first substrate, the upper surface of the second substrate, and the lower surface of the second substrate comprise substantially planar surfaces, and wherein at least one of the first and second spacers comprises a substantially flexible spacer.

9. The display of claim 7 , wherein the adhesive is disposed along substantially an entirety of the lower surface of the first substrate and along substantially an entirety of the upper surface of the second substrate.

10. The display of claim 7 , wherein the third spacer defines at least part of a third sealed region, and wherein the third sealed region includes air.

11. The display of claim 10 , wherein a pressure within the first and second sealed regions is substantially equal to a pressure within the third sealed region.

12. The display of claim 7 , wherein the first plate is positioned such that the first spacer extends proximate substantially an entire perimeter of the upper surface of the first substrate; and
the second plate is positioned such that the second spacer extends proximate substantially an entire perimeter of the lower surface of the second substrate.

13. The display of claim 7 , wherein a pressure within the first sealed region is substantially equal to a pressure within the second sealed region.

14. The display of claim 7 , wherein the third spacer comprises a substantially solid spacer applying a first pressure at the substantially central location.

15. The display of claim 14 , wherein a fluid disposed within at least one of the first and second sealed regions is at a second pressure different from the first pressure.

16. An assembly, comprising:
a first substantially planar substrate having an upper surface and a lower surface opposite the upper surface;
a second substantially planar substrate disposed opposite the first substrate, the second substrate having an upper surface and a lower surface opposite the upper surface;
an adhesive disposed between the lower surface of the first substrate and the upper surface of the second substrate, the adhesive adhering the lower surface of the first substrate to the upper surface of the second substrate;
a first substantially rigid plate including a continuous, substantially planar bottom surface, the bottom surface having
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Assignees

• Amazon Tech Inc

Inventors

• Hou Weihsin
• Menon Anoop
• Khor Chin Siong
• Woon Yean Chan

Classifications

• G06F1/1637 Primary

  Details related to the display arrangement, including those related to the mounting of the display in the housing · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B32B7/045 Primary

  Operations & Transport · mapped topic