Patent ID: 9253932
Filing Date: 2016-02-02
CPC Classification: G02F,H01J,H05K

Claim Text:
1. A method for improving temperature uniformity of an image display device comprising an image display panel, wherein the image display panel comprises a plurality of heat sources, the method comprising: providing a frame system comprising: a) a metal support member attached to and/or positioned proximate to the image display panel; b) a heat dispersion material positioned proximate to the metal support member and opposite the image display panel such that the metal support member is positioned between the heat dispersion material and the image display panel; and c) a framework positioned proximate to the metal support member and/or positioned proximate to the heat dispersion material and opposite the metal support member such that the heat dispersion material is between the metal support member and the framework; and wherein the heat dispersion material comprises 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; 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 metal support member by its in-plane thermal conductivity; and wherein 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 150 mm·W/m·K but does not include a heat dispersion material having an in-plane thermal conductivity of at least 250 W/m·K and a thermal anisotropic ratio of no less than 10 proximate to the metal support member.