Durable display panel with impact resistance

• US 8,189,134 B2
• Filed: 12/08/2008
• Issued: 05/29/2012
• Est. Priority Date: 09/19/2008
• Status: Active Grant

• Current Assignee: Manufacturing Resources International, Inc.
• Original Assignee: Manufacturing Resources International, Inc.
• Inventors: LeCave, Michael
• Primary Examiner(s): Dudek, James
• Application Number:
  US12/330,041
• Publication Number:
  US 20100075071A1
• Time in Patent Office: 1,268 Days
• Field of Search: 349/60, 349/158, 349/58, 349 73- 74
• US Class Current: 349/60
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10302 Edge sealing
• CPC Class Codes: B32B 17/10706 being photo-polymerized
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: C09K 2323/033 Silicon compound, e.g. glass or organosilicon
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 1/133502 Antiglare, refractive index matching layers
• CPC Class Codes: Y10T 428/24777 Edge feature
• CPC Class Codes: Y10T 428/24793 Comprising discontinuous or differential impregnation or bond

Abstract

Exemplary embodiments provide a durable anti-reflective display panel for an electronic display. The panel may be used with any flat panel display including but not limited to LCD, plasma, and organic LED displays. Embodiments may contain anti-reflective glass containing pyrolytic coatings and may be bonded together using an index-matched optical adhesive. Exemplary embodiments can resist impact from objects at high speeds and protect the electronic display from damage. Embodiments also resist shattering to protect any bystanders.

Claims

1. A durable display panel for an electronic display comprising:

a first glass panel with an anti-reflective surface;

a second glass panel with an anti-reflective surface, said second panel is substantially parallel to and substantially aligned with said first glass panel;

a layer of optical adhesive bonding the two glass panels; and

a Seal between the two panels and running around the edges of the panels, sealing the optical adhesive between the two glass panels.

2. The display panel from claim 1 further comprising:

a gap along said sealing perimeter adapted to allow excess optical adhesive to drain.

3. The display panel from claim 2 further comprising:

a gap-filler adapted to close said gap once the excess optical adhesive has drained.

4. The display panel from claim 3 wherein:

said gap-filler is hot glue.

5. The display panel from claim 1 wherein:

the anti-reflective surfaces of said first and second glass panels is a pyrolytic surface.

6. The display panel from claim 5 wherein:

the surface of said first and second glass panels which contacts said optical adhesive is opposite the pyrolytic surface.

7. The display panel from claim 1 wherein:

said Seal is very high bond (VHB) tape.

8. The display panel from claim 1 wherein:

said optical adhesive is an index-matched optical adhesive.

9. The display panel from claim 1 wherein:

said optical adhesive is UV-cured.

10. The display panel from claim 7 wherein:

said first and second glass panels are between 3.0 and 3.5 mm thick and

said VHB tape is between 0.8 and 1.2 mm thick.

11. The display panel from claim 7 wherein:

said first and second glass panels are between 6.0 and 6.5 mm thick and

said VHB tape is between 1.0 and 1.5 mm thick.

12. A liquid crystal display (LCD) with an intended observer comprising:

an LCD stack;

a display panel positioned between said LCD stack and an intended observer, said display panel comprising;

a first glass panel with an anti-reflective pyrolytic surface and a surface opposite said pyrolytic surface;

a second glass panel with an anti-reflective pyrolytic surface and a surface opposite said pyrolytic surface, said second panel is substantially parallel to and substantially aligned with said first glass panel with the surfaces opposite the pyrolytic surface being adjacent;

a layer of optical adhesive disposed between the two glass panels;

a sealing perimeter comprised of VHB tape between the two panels and running around the edges of the panels, sealing the optical adhesive between the two glass panels;

a gap along said sealing perimeter adapted to allow excess optical adhesive to drain; and

a gap-filler adapted to close said gap once the excess optical adhesive has drained.

13. The LCD from claim 12 wherein:

the percentage of reflectance of said display panel is less than 3 percent.

14. The display panel from claim 13 wherein:

said first and second glass panels are between 3.0 and 3.5 mm thick and

said VHB tape is between 0.8 and 1.2 mm thick.

15. The display panel from claim 13 wherein:

said first and second glass panels are between 6.0 and 6.5 mm thick and

said VHB tape is between 1.0 and 1.5 mm thick.

16. An electronic display with an intended observer comprising:

an image-producing assembly;

a display panel positioned between said image-producing assembly and an intended observer, said display panel comprising;

a first glass panel with an anti-reflective surface and a surface opposite said anti-reflective surface;

a second glass panel with an anti-reflective surface and a surface opposite said anti-reflective surface, said second panel is substantially parallel to and substantially aligned with said first glass panel with the surfaces opposite the anti-reflective surfaces being adjacent;

a layer of optical adhesive disposed between the two glass panels; and

a sealing perimeter comprised of VHB tape between the two panels and running around the edges of the panels, sealing the optical adhesive between the two glass panels.

17. The electronic display from claim 16 further comprising:

a gap along said sealing perimeter adapted to allow excess optical adhesive to drain; and

a gap-filler adapted to close said gap once the excess optical adhesive has drained.

18. The electronic display from claim 16 wherein:

said image-producing assembly is any one of the following;

LCD, plasma, or organic LED assembly.

19. The display panel from claim 16 wherein:

the anti-reflective surface on the first glass panel is pyrolytic.

20. The display panel from claim 16 wherein:

the anti-reflective surface on the second glass panel is pyrolytic.