Optimized frame system for a display device

• US 9,081,220 B2
• Filed: 06/27/2005
• Issued: 07/14/2015
• Est. Priority Date: 06/27/2005
• Status: Expired due to Fees

• Current Assignee: NeoGraf Solutions, LLC
• Original Assignee: Graftech International Holdings Inc (Graftech International Limited)
• Inventors: Shives, Gary D., Hoffert, Gerald, Varela, William
• Primary Examiner(s): Rude, Timothy L
• Application Number:
  US11/167,935
• Publication Number:
  US 20060290875A1
• Time in Patent Office: 3,669 Days
• Field of Search: 349 58- 60, 349/70
• US Class Current: 1/1
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133385 with cooling means, e.g. fans
• CPC Class Codes: G02F 1/133628 with cooling means
• CPC Class Codes: H05K 5/0017 with operator interface units
• CPC Class Codes: H05K 7/2039 characterised by the heat transfer by conduction from the heat generating element to a dissipating body arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00
• CPC Class Codes: H05K 7/20972 Forced ventilation, e.g. on heat dissipaters coupled to components

Abstract

An image display device comprising an image display panel, heat dispersion material positioned proximate to the image display panel, a frame system including a framework positioned proximate to the heat dispersion material opposite the image display panel, and a plurality of electronic components engaging the framework, where the image display device exhibits a support factor of less than about 375 mm-W/m° K. The framework can be adhesively bonded to the heat dispersion material. The framework can include a height and a width wherein the heat dispersion material substantially spans the height and the width. Additionally, a first cross support can span the framework and a plurality of second electronic components can engage the first cross support. Additionally a second cross support can span the framework wherein at least one of the second electronic components engages the second cross support.

Claims

1. A frame system for an image display device comprising a plurality of electronic components, the frame system comprising:

heat dispersion material comprising at least one sheet of compressed particles of exfoliated graphite having an in-plane thermal conductivity of at least about 250 W/m-K and a thermal anisotropic ratio of no less than about 10, the heat dispersion material positioned proximate to an image display panel; and

a framework positioned proximate to the heat dispersion material opposite the image display panel, the framework comprising a metal support member,

wherein a plurality of the electronic components engage the framework,

and further wherein the frame system exhibits a support factor of less than about 150 mm-W/m-K, wherein the support factor is determined by multiplying the thickness of the support member present in the display panel by its in-plane thermal conductivity where the image display device exhibits improved temperature uniformity as compared to an image display device having a frame system which exhibits a support factor of less than about 150 mm-W/m-K but does not include a heat dispersion material having an in-plane thermal conductivity of at least about 250 W/m-K and a thermal anisotropic ratio of no less than about 10 positioned proximate to the image display panel.

2. The frame system of claim 1, further including a first cross support spanning the framework and a plurality of second electronic components engaging the first cross support.

3. The frame system of claim 2, further including a second cross support spanning the framework wherein at least one of the second electronic components engages the second cross support.

4. The frame system of claim 1, further including an adhesive bonding the framework to the heat dispersion material.

5. The frame system of claim 1, wherein the framework including a height and a width, wherein the heat dispersion material substantially spans the height and the width of the framework.

6. A frame system for an image display device comprising a plurality of electronic components, the frame system comprising:

heat dispersion material comprising at least one sheet of compressed particles of exfoliated graphite having an in-plane thermal conductivity of at least about 250 W/m-K and a thermal anisotropic ratio of no less than about 10, the heat dispersion material positioned proximate to an image display panel opposite the image display side; and

a perimeter framework position proximate to the heat dispersion material opposite the image display panel, the perimeter framework including a top, bottom, first side, and second side, the framework comprising a metal support member, wherein a plurality of the electronic components engage the perimeter framework, and further wherein the frame system exhibits a support factor of less than about 150 mm-W/m-K, wherein the support factor is determined by multiplying the thickness of the support member present in the display panel by its in-plane thermal conductivity where the image display device exhibits improved temperature uniformity as compared to an image display device having a frame system which exhibits a support factor of less than about 150 mm-W/m-K but does not include a heat dispersion material having an in-plane thermal conductivity of at least about 250 W/m-K and a thermal anisotropic ratio of no less than about 10 positioned proximate to the image display panel.

7. The frame system of claim 6, wherein the top, bottom, first side and second side of the framework define an aperture.

8. The frame system of claim 7, wherein the heat dispersion material substantially spans the aperture.

9. The frame system of claim 6, wherein the heat dispersion material engages the top, bottom, first side and second side of the framework.

10. The frame system of claim 6, wherein the image display panel is a plasma display panel.

11. The frame system of claim 6, wherein the image display panel is a liquid crystal display panel.

12. A frame system for an image display device comprising a plurality of electronic components, the frame system comprising:

heat dispersion material comprising at least one sheet of compressed particles of exfoliated graphite having an in-plane thermal conductivity of at least about 250 W/m-K and a thermal anisotropic ratio of no less than about 10, the heat dispersion material positioned proximate to an image display panel;

a framework positioned proximate to the heat dispersion material opposite the image display panel, the framework comprising a metal support member,

wherein a plurality of the electronic components engage the framework, and further wherein the frame system exhibits a support factor of less than about 150 mm-W/m-K, wherein the support factor is determined by multiplying the thickness of the support member present in the display panel by its in-plane thermal conductivity where the image display device exhibits improved temperature uniformity as compared to an image display device having a frame system which exhibits a support factor of less than about 150 mm-W/m-K but does not include a heat dispersion material having an in-plane thermal conductivity of at least about 250 W/m-K and a thermal anisotropic ratio of no less than about 10 positioned proximate to the image display panel.

13. The frame system of claim 12, further including a first cross support spanning the framework and a plurality of second electronic components engaging the first cross support.

14. The frame system of claim 13, further including a second cross support spanning the framework wherein at least one of the second electronic components engages the second cross support.

15. The frame system of claim 12, further including an adhesive bonding the framework to the heat dispersion material.

16. The frame system of claim 12, wherein the framework including a height and a width, wherein the heat dispersion material substantially spans the height and the width of the framework.