Patent ID: 9363932
Filing Date: 2016-06-07
CPC Classification: B82Y,H05K

Claim Text:
1. An integrated graphene film-enhanced display device, comprising: (a) a display device which comprises one or multiple heat sources and a back surface where a localized area is at a higher temperature than an adjacent area; and (b) a heat spreader which comprises at least one sheet of integrated graphene film having two major surfaces, wherein one of the major surfaces of the heat spreader is in thermal contact with one or multiple heat sources and further wherein the heat spreader itself reduces the temperature difference between two locations on the display device; wherein said integrated graphene film is composed of chemically merged graphene oxide gel molecules or graphene oxide gel-bonded nano graphene platelets (NGPs) that are merged in an edge-to-edge manner and exhibits a thermal conductivity of at least 600 W/mK, and said integrated graphene film has at least one of the following features: i) having an oxygen content of at least 0.1% by weight, but less than 10% by weight; ii) having a single grain, a single crystal, or few grains that has no or few sheet-to-sheet grain boundaries per layer; or iii) having an electrical conductivity greater than 2,000 S/cm, a physical density greater than 2.0 g/cm