Computer display or cover glass/cell attachment to frame

Patent metadata

Field	Value
Publication number	US-11604491-B2
Application number	US-201715649164-A
Country	US
Kind code	B2
Filing date	Jul 13, 2017
Priority date	Sep 26, 2012
Publication date	Mar 14, 2023
Grant date	Mar 14, 2023

Abstract

The described embodiments relate generally to computing devices including liquid crystal displays (LCDs) and more particularly to methods for attaching a cover glass layer to a structural housing while minimizing an amount of stress transferred through the cover glass layer to the LCD module. A continuous and compliant foam adhesive can be used to bond the cover glass layer to a structural. The compliant bond can absorb and distribute local stress concentrations caused by structural loads, mismatched surfaces and differing thermal expansion rates between various structures and cover glass layer. This can reduce stress concentrations in the cover glass layer that can lead to stress induced birefringence in the LCD cell. In other embodiments, the cover glass layer can be attached using magnets or a tongue and groove design.

First claim

What is claimed is:

1. An electronic device having an interior and an exterior, the electronic device comprising:
a housing having an opening;
a cover glass that extends over the opening and that has a first surface that faces the exterior and an opposing second surface that faces the interior;
a display module attached to a first portion of the cover glass;
a support frame interposed between the display module and the housing;
a mounting bracket attached to a second portion of the cover glass that surrounds the first portion, wherein the mounting bracket is attached to the support frame;
a backlight assembly that rests on the support frame and is surrounded by the mounting bracket;
a metal plate attached to the second surface of the cover glass; and
a support block attached to the cover glass through the metal plate and to the housing, wherein the support block is magnetic.

2. The electronic device defined in claim 1 wherein the display module is adhered to the first portion of the cover glass with an optically clear adhesive.

3. The electronic device defined in claim 1 wherein the support block is attached to a portion of the cover glass that surrounds the first and second portions of the cover glass.

4. The electronic device defined in claim 1 wherein the support block maintains a gap between the housing and the cover glass.

5. The electronic device defined in claim 1 further comprising a tongue attached to the mounting bracket, wherein the support block comprises a groove, and wherein the tongue is positioned within the groove.

6. The electronic device defined in claim 5 wherein the tongue is integrally formed with the mounting bracket.

7. The electronic device defined in claim 1 wherein the support frame is fastened to the mounting bracket.

8. The electronic device defined in claim 1 wherein the mounting bracket is attached to the cover glass with a foam adhesive.

9. The electronic device defined in claim 8 wherein the foam adhesive is configured to distribute stresses transferred from the mounting bracket to the cover glass.

10. The electronic device defined in claim 8 wherein the mounting bracket is magnetic and wherein a magnetic field of an external magnet placed in proximity to the cover glass near the mounting bracket exerts a force on the mounting bracket that pulls the mounting bracket toward the cover glass and compresses the foam adhesive.

11. The electronic device defined in claim 1 wherein the mounting bracket comprises rigid plates that are adhered to the cover glass.

Assignees

• Apple Inc

Inventors

• Mathew Dinesh C
• Cooper Edward J
• Degner Brett W
• Hendren Keith J
• Rundle Nicholas Alan
• Tarkington Dave

Classifications

• H05K13/00

  Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components · CPC title

• H04N5/64

  Constructional details of receivers, e.g. cabinets or dust covers (furniture aspects {of television cabinets} A47B81/06) · CPC title

• G06F1/1637 Primary

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

• G06F1/1601

  Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64) · CPC title

• G06F2200/1612

  Flat panel monitor · CPC title