Bezel packaging for sealed glass assemblies and a glass assembly therefor

• US 8,885,116 B2
• Filed: 03/30/2009
• Issued: 11/11/2014
• Est. Priority Date: 03/31/2008
• Status: Expired due to Fees

• Current Assignee: Corning Incorporated
• Original Assignee: Corning Incorporated
• Inventors: Bayne, John Frederick, Gu, Yabei, Morgan, Glenn Vertner, Vaddi, Butchi Reddy, Westbrook, Jamie Todd, Widjaja, Sujanto
• Primary Examiner(s): DUONG, THOI V
• Application Number:
  US12/922,987
• Publication Number:
  US 20110019351A1
• Time in Patent Office: 2,052 Days
• Field of Search: 349/58, 349/153, 349/122, 349/69, 349/158, 349/60, 349/84, 362/632, 362/633, 362/634, 362/362, 362/382, 361/679.01, 361/807, 361/809, 361/724, 361/752, 174/50.5, 312/223.2, 312/223.1, 248/223.31, 248/224.8, 248/231.81, 264/219, 348/E5.128, 348/790, 348/794
• US Class Current: 349/58
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2115/15 Organic light-emitting diodes [OLED]
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 59/87 Passivation; Containers; Encapsulations

Abstract

Methods and assemblies related to frame or bezel packaging of a sealed glass assembly, such as a fit-sealed OLED device, such as an OLED display panel. The frame or bezel packaging may have one or more of (a) rounded or chamfered corners, (a) a cover, (b) a reinforced lead edge, (c) openings or cutouts in the back panel to conserve material and lighten the bezel, and (d) a shock absorbent intermediate layer of low modulus of elasticity material applied between the sealed glass assembly and the back and/or sides of the frame or bezel. The frame or bezel design may include a gap between the sealed glass assembly and the back panel of the bezel. The gap may be filled at least in part with low modulus of elasticity backing material. The glass package may have one or more of (a) rounded or chamfered corners, (b) rounded or chamfered edges, (c) a low modulus of elasticity material applied around its periphery or portions of its periphery, such as on the corners only, (d) a shortened lead end, and (e) a thickened lead end.

Claims

1. A bezel for packaging a sealed glass assembly comprising:

a bezel having a rectangular back wall with first, second, third and fourth peripheral edges;

first, second and third sidewalls extending upward from the first, second and third peripheral edges respectively, with the sidewalls being joined together at two corners of the backwall;

the bezel including at least one of (a) a reinforcing structure along the fourth peripheral edge of the bezel backwall;

(b) rounded corners (c) chamfered corners; and

(c) at least one opening through the backwall;

a sealed glass assembly comprising first and second rectangular glass plates including one of rounded or chamfered corners, wherein the first glass plate is longer in one dimension than the second glass plate, whereby a portion of the first glass plate extends beyond the second glass plate a distance that is about 0.1 to about 5% of the diagonal of the second glass plate;

an element that is sensitive to heat and to at least one of moisture and the ambient atmosphere located between the first and second glass plates, the element comprising at least one electronic device; and

a glass frit sealing material extending between the first and second plates and surrounding the element, the frit sealing material thereby joining the first and second glass plates and substantially hermetically sealing the element in the glass assembly, and electrical leads located on the extending portion of the first glass plate and extend through the frit seal to the at least one electronic device without compromising the hermetic seal; and

adhesive securing the sealed glass assembly in the bezel and forming a shock absorbent intermediate layer between the sealed glass assembly and the bezel.

2. A bezel for packaging a sealed glass assembly comprising:

a bezel having a rectangular back wall with first, second, third and fourth peripheral edges;

first, second and third sidewalls extending upward from the first, second and third peripheral edges respectively; and

at least two rounded corners;

the bezel further including mounting elements extending upward from an inner surface of the back wall;

a sealed glass assembly; and

a flexible mounting structure affixed to peripheral edges of the glass assembly and secured to the mounting elements such that the glass assembly and the flexible mounting structure are both spaced from and suspended over the back wall by the mounting elements to form a gap between the back wall and the glass assembly,

wherein the flexible mounting structure comprises a flexible member having an end portion affixed to a peripheral edge of the glass assembly that is unrestrained above and below the end portion.

3. The bezel of claim 2, further comprising:

a cover having a front wall with first, second, third and fourth peripheral edges;

first, second and third sidewalls extending downward from the first, second and third peripheral edges respectively;

the first, second and third cover sidewalls being connected to the first, second and third bezel sidewalls.

4. The bezel of claim 3, further comprising;

an OLED device in the glass assembly; and

an opening in the cover front wall through which light emitted by the OLED device may pass.

5. The bezel of claim 4, wherein the OLED device is an OLED display panel.

6. The bezel of claim 2, further comprising:

a shock absorbent, low modulus of elasticity material in the gap.

7. The bezel of claim 6, wherein the shock absorbent material forms an intermediate layer that spans the gap and is adhered to the bezel back wall and to the sealed glass assembly.

8. The bezel of claim 7, wherein the shock absorbent intermediate layer is formed of foam, ceramic fiber cloth and/or low modulus of elasticity polymeric organic coating.

9. The bezel of claim 6, wherein the shock absorbent material forms an intermediate layer comprising at least one of a low modulus of elasticity ceramic fiber cloth, resin, polymer, rubber, or epoxy material.

10. The bezel of claim 9, wherein the shock absorbent intermediate layer has a modulus of elasticity of about 0.01 GPa to about 10 GPa.

11. The bezel of claim 2, further comprising an adhesive forming a shock absorbent layer between the sealed glass assembly and the bezel, wherein:

the adhesive adheres a bottom surface of the sealed glass assembly to the inner surface of the bezel backwall.

12. The bezel of claim 11, wherein the adhesive comprises one of an epoxy, polymer, rubber or silicone adhesive.

13. The bezel of claim 12, wherein the adhesive has a modulus of elasticity of about 0.01 GPa to about 10 GPa.

14. The bezel of claim 2, further comprising an adhesive applied to one of the inner surface of the bezel backwall and a bottom surface of the sealed glass assembly, wherein:

the adhesive comprises one or more strips of adhesive in a generally ring shaped or rectangular pattern; and

a shock absorbent, low modulus of elasticity material is located inside the ring of adhesive between the glass assembly and the bezel backwall.

15. The bezel of claim 2, further the sealed glass assembly further comprises:

a first and second rectangular glass plates having one of rounded or chamfered corners;

an element that is sensitive to heat and to at least one of moisture and the ambient atmosphere located between the first and second glass plates; and

a glass frit sealing material extending between the first and second plates and surrounding the element, the frit sealing material thereby joining the first and second glass plates and substantially hermetically sealing the element in the glass assembly.

16. The bezel of claim 15, wherein:

the element is at least one electronic device;

the first glass plate is longer in one dimension than the second glass plate, whereby a portion of the first glass plate extends beyond the second glass plate a distance that is about 0.1 to about 5% of the diagonal of the second glass plate; and

electrical leads are located on the extending portion of the first glass plate and extend through the frit seal to the at least one electronic device without compromising the hermetic seal.

17. The bezel of claim 16, wherein the at least one electronic device is an organic light emitting diode device.

18. The bezel of claim 2, wherein the bezel comprises acrylate, plastic, composite material, metal, aluminum, titanium alloy and/or stainless steel.

19. The bezel of claim 18, wherein the bezel comprises metal with a modulus of elasticity of about 60 GPa to about 200 GPa.

20. The bezel of claim 18, wherein the bezel comprises plastic with a modulus of elasticity of about 0.1 GPa to about 10 GPa.

21. The bezel of claim 2, wherein the bezel further comprises a reinforcing structure along the fourth peripheral edge of the bezel backwall.

22. The bezel of claim 21, wherein the bezel further comprises at least one opening through the bezel backwall.

23. The bezel of claim 22, further comprising:

a cover having a front wall with first, second, third and fourth peripheral edges;

first, second and third sidewalls extending downward from the first, second and third peripheral edges respectively;

the first, second and third cover sidewalls being connected to the first, second and third bezel sidewalls.

24. A bezel for packaging a sealed glass assembly comprising:

a bezel having a rectangular back wall with first, second, third and fourth peripheral edges;

first, second and third sidewalls extending upward from the first, second and third peripheral edges respectively; and

at least two rounded corners;

a sealed glass assembly comprising first and second rectangular glass plates including one of rounded or chamfered corners, wherein the first glass plate is longer in one dimension than the second glass plate, whereby a portion of the first glass plate extends beyond the second glass plate a distance that is about 0.1 to about 5% of the diagonal of the second glass plate;

an element that is sensitive to heat and to at least one of moisture and the ambient atmosphere located between the first and second glass plates, the element comprising at least one electronic device; and

a glass frit sealing material extending between the first and second plates and surrounding the element, the frit sealing material thereby joining the first and second glass plates and substantially hermetically sealing the element in the glass assembly, and electrical leads located on the extending portion of the first glass plate and extend through the frit seal to the at least one electronic device without compromising the hermetic seal; and

an adhesive material securing the sealed glass assembly in the bezel and forming a shock absorbent layer between the sealed glass assembly and the bezel.

25. The bezel of claim 24, wherein the at least one electronic device is an organic light emitting diode device.

26. The bezel of claim 24, further comprising:

a cover having a front wall with first, second, third and fourth peripheral edges;

first, second and third sidewalls extending downward from the first, second and third peripheral edges respectively;

the first, second and third cover sidewalls being connected to the first, second and third bezel sidewalls.

27. The bezel of claim 26, wherein the at least one electronic device comprises an OLED device, and the cover includes an opening in the front wall of the cover through which light emitted by the OLED device may pass.

28. The bezel of claim 24, wherein the adhesive adheres an inner surface of the bezel sidewalls to peripheral edges of the glass assembly, with the glass assembly being spaced form the bezel backwall thereby forming gap between the glass assembly and the bezel backwall.

29. The bezel of claim 28, further comprising a shock absorbent, low modulus of elasticity material in the gap.

30. The bezel of claim 29, wherein the shock absorbent material forms an intermediate layer that spans the gap and is adhered to the bezel back wall and to the sealed glass assembly.

31. The bezel of claim 24, wherein:

the adhesive adheres a bottom surface of the sealed glass assembly to an inner surface of the bezel backwall.

32. The bezel of claim 31, wherein:

the adhesive comprises one or more strips of adhesive in a generally ring shaped or rectangular pattern; and

a shock absorbent, low modulus of elasticity material is located inside the ring of adhesive between the glass assembly and the bezel backwall.

33. A bezel for packaging a sealed glass assembly comprising:

a bezel having a rectangular back wall with first, second, third and fourth peripheral edges;

first, second and third sidewalls extending upward from the first, second and third peripheral edges respectively; and

at least two rounded corners;

the bezel further including mounting elements extending upward from an inner surface of the back wall;

a sealed glass assembly;

a flexible mounting structure affixed to peripheral edges of the glass assembly and secured to the mounting elements such that the glass assembly and the flexible mounting structure are both spaced from and suspended over the back wall by the mounting elements to form a gap between the back wall and the glass assembly, and

an adhesive material forming a shock absorbent layer between the sealed glass assembly and the bezel, wherein the adhesive adheres a bottom surface of the sealed glass assembly to the inner surface of the bezel backwall.