Patent
US 9,363,932Integrated Graphene Film Heat Spreader for Display Devices
Mingchao Wang, Wei Xiong, Aruna Zhamu, Bor Z. Jang
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,363,932Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 A flow chart illustrating various prior art processes of producing exfoliated graphite products (flexible graphite sheets and flexible graphite composites) …
FIG.2 (a) A SEM image of a graphite worm sample after exfoliation of graphite intercalation compounds (GICs); (b) An SEM image of a cross-section of a flexible …
FIG.3 (A) Thermal conductivity, (B) electrical conductivity, and (C) tensile strength of GO gel bonded NGP composites as a function of the GO content in the …
FIG.4 Thermal conductivity values of GO gel bonded NGP composites, integrated graphene film from treated GO gel (heat treatment times 4 hours for GO and GO-NGP …
FIG.5 A Schematic drawing of the process for the continuous production of thin graphene composite film.
FIG.6 SEM images of (A) the surface of the flexible graphite sheet made by re-compression of expanded graphite and (B) the surface of thin graphene composite …
FIG.7 Illustration of an assembly of a thin graphene composite film in a display device.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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 or graphene oxide gel-bonded-nano graphene platelets (NGPs) 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 SVG 13507167.03-21-2016.IMCFHB₀KPXXIFW4.CLM.1.22.520.2099.634.2156.svg 0.19 0.38 Chemistry Black and white, or a tensile strength greater than 10 MPa.... The display device of claim 1 wherein the heat spreader comprises a laminate comprising a plurality of sheets of integrated graphene films.. The display device of claim 1, further comprising a heat dissipation device positioned in a location not directly adjacent to a heat source and wherein one of the major surfaces of the heat spreader is in operative contact with the heat dissipation device.
SVG 13507167.03-21-2016.IMCFHB₀KPXXIFW4.CLM.2.1.90.237.107.273.svg 0.12 0.057 Chemistry Black and white 6. The display device of claim 1, wherein the integrated graphene film has an in-plane thermal conductivity of at least 600 800 W/mK.
The display device of claim 1, wherein the integrated graphene film has an in- plane thermal conductivity of at least 1,500 W/mK.
The display device of claim 1, wherein the integrated graphene film further comprises a protective coating thereon.
The display device of claim 1, wherein the integrated graphene film further comprises a layer of adhesive applied thereon.
The display device of claim 1, wherein said integrated graphene film is a graphene composite film composed of nano graphene platelets (NGPs) bonded by a graphene oxide binder, wherein said NGPs contain single-layer graphene or multi-layer graphene sheets having a thickness from 0.335 nm to 100 nm, and said NGPs occupy a weight fraction of 1% to 99.9% of the total composite weight; and said graphene oxide binder, having an oxygen content of 0.1%- 40% by weight based on the total graphene oxide weight, occupies a weight fraction of 0.1% to 99% of the total composite weight, and wherein said composite forms a thin film with a thickness no greater than 1 mm and no less than 1 pm.
The display device of claim 1, wherein said integrated graphene film has a thickness greater than 10 p m, but less than 100 pm.
The display device of claim 1 wherein said integrated graphene film is a film produced from a graphene oxide gel, which is prepared by immersing a graphitic material in a powder or fibrous form in an oxidizing liquid to form an optically opaque suspension in a reaction vessel at a reaction temperature for a length of time sufficient to obtain a graphene oxide gel that is optically transparent or translucent, wherein said graphene oxide gel is composed of graphene oxide molecules dispersed in an acidic medium having a pH value of no higher than 5 and said graphene oxide molecules have an oxygen content no less than 20% by weight.
The display device of claim 1 wherein said integrated graphene film is a film produced from a graphene oxide gel, which is prepared by immersing a graphitic material in an oxidizing agent to form an optically opaque suspension and allowing an oxidizing reaction to proceed until an optically transparent or translucent solution is formed, and wherein said graphitic material is selected from natural graphite, artificial graphite, meso-phase carbon, meso-phase pitch, meso-carbon micro-bead, soft carbon, hard carbon, coke, tube, or a combination thereof.
The display device of claim 1, wherein a thermal heat spreader and a heat source.
The display device of claim 4, wherein the heat dissipation device comprises a heat sink, a heat pipe, a heat plate, or a combination thereof. 2
The display device of claim 22 wherein said re-graphitization temperature is in the range from 300 * C to 1,500 *C.
The display device of claim 22 wherein said re-graphitization temperature is in the range from 100 * C and 1,000 *C.
The display device of claim 22 wherein said thin film composition forms into a uni tary structure after said re-graphitization treatment.
The display device of claim 18 wherein said graphitic material is selected from ia tural graphite, artificial graphite, meso-phase carbon, meso-phase pitch, meso-carbon nicro-bead, soft carbon, hard carbon, coke, carbon fiber, carbon nano-fiber, carbon nano- tube, or a combination thereof.
Layer stacks claimed or described, ordered top of device to substrate.
integrated graphene film-enhanced display device with heat spreader
Materials described outside the worked examples.
integrated graphene film
nano graphene platelets (NGPs)
Measurements and analyses referenced in the patent, with their drawing references.
FIG.2 (a) A SEM image of a graphite worm sample after exfoliation of graphite intercalation compounds (GICs); (b) An SEM image of a cross-section of a flexible …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
in-plane thermal conductivity ≥600 W/mK (claim 1 minimum) | ≥ 600 W/mK | integrated graphene film |
electrical conductivity >2000 S/cm (claim 1 feature iii) | ≥ 2000 S/cm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,363,932Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 A flow chart illustrating various prior art processes of producing exfoliated graphite products (flexible graphite sheets and flexible graphite composites) …
FIG.2 (a) A SEM image of a graphite worm sample after exfoliation of graphite intercalation compounds (GICs); (b) An SEM image of a cross-section of a flexible …
FIG.3 (A) Thermal conductivity, (B) electrical conductivity, and (C) tensile strength of GO gel bonded NGP composites as a function of the GO content in the …
FIG.4 Thermal conductivity values of GO gel bonded NGP composites, integrated graphene film from treated GO gel (heat treatment times 4 hours for GO and GO-NGP …
FIG.5 A Schematic drawing of the process for the continuous production of thin graphene composite film.
FIG.6 SEM images of (A) the surface of the flexible graphite sheet made by re-compression of expanded graphite and (B) the surface of thin graphene composite …
FIG.7 Illustration of an assembly of a thin graphene composite film in a display device.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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 or graphene oxide gel-bonded-nano graphene platelets (NGPs) 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 SVG 13507167.03-21-2016.IMCFHB₀KPXXIFW4.CLM.1.22.520.2099.634.2156.svg 0.19 0.38 Chemistry Black and white, or a tensile strength greater than 10 MPa.... The display device of claim 1 wherein the heat spreader comprises a laminate comprising a plurality of sheets of integrated graphene films.. The display device of claim 1, further comprising a heat dissipation device positioned in a location not directly adjacent to a heat source and wherein one of the major surfaces of the heat spreader is in operative contact with the heat dissipation device.
SVG 13507167.03-21-2016.IMCFHB₀KPXXIFW4.CLM.2.1.90.237.107.273.svg 0.12 0.057 Chemistry Black and white 6. The display device of claim 1, wherein the integrated graphene film has an in-plane thermal conductivity of at least 600 800 W/mK.
The display device of claim 1, wherein the integrated graphene film has an in- plane thermal conductivity of at least 1,500 W/mK.
The display device of claim 1, wherein the integrated graphene film further comprises a protective coating thereon.
The display device of claim 1, wherein the integrated graphene film further comprises a layer of adhesive applied thereon.
The display device of claim 1, wherein said integrated graphene film is a graphene composite film composed of nano graphene platelets (NGPs) bonded by a graphene oxide binder, wherein said NGPs contain single-layer graphene or multi-layer graphene sheets having a thickness from 0.335 nm to 100 nm, and said NGPs occupy a weight fraction of 1% to 99.9% of the total composite weight; and said graphene oxide binder, having an oxygen content of 0.1%- 40% by weight based on the total graphene oxide weight, occupies a weight fraction of 0.1% to 99% of the total composite weight, and wherein said composite forms a thin film with a thickness no greater than 1 mm and no less than 1 pm.
The display device of claim 1, wherein said integrated graphene film has a thickness greater than 10 p m, but less than 100 pm.
The display device of claim 1 wherein said integrated graphene film is a film produced from a graphene oxide gel, which is prepared by immersing a graphitic material in a powder or fibrous form in an oxidizing liquid to form an optically opaque suspension in a reaction vessel at a reaction temperature for a length of time sufficient to obtain a graphene oxide gel that is optically transparent or translucent, wherein said graphene oxide gel is composed of graphene oxide molecules dispersed in an acidic medium having a pH value of no higher than 5 and said graphene oxide molecules have an oxygen content no less than 20% by weight.
The display device of claim 1 wherein said integrated graphene film is a film produced from a graphene oxide gel, which is prepared by immersing a graphitic material in an oxidizing agent to form an optically opaque suspension and allowing an oxidizing reaction to proceed until an optically transparent or translucent solution is formed, and wherein said graphitic material is selected from natural graphite, artificial graphite, meso-phase carbon, meso-phase pitch, meso-carbon micro-bead, soft carbon, hard carbon, coke, tube, or a combination thereof.
The display device of claim 1, wherein a thermal heat spreader and a heat source.
The display device of claim 4, wherein the heat dissipation device comprises a heat sink, a heat pipe, a heat plate, or a combination thereof. 2
The display device of claim 22 wherein said re-graphitization temperature is in the range from 300 * C to 1,500 *C.
The display device of claim 22 wherein said re-graphitization temperature is in the range from 100 * C and 1,000 *C.
The display device of claim 22 wherein said thin film composition forms into a uni tary structure after said re-graphitization treatment.
The display device of claim 18 wherein said graphitic material is selected from ia tural graphite, artificial graphite, meso-phase carbon, meso-phase pitch, meso-carbon nicro-bead, soft carbon, hard carbon, coke, carbon fiber, carbon nano-fiber, carbon nano- tube, or a combination thereof.
Layer stacks claimed or described, ordered top of device to substrate.
integrated graphene film-enhanced display device with heat spreader
Materials described outside the worked examples.
integrated graphene film
nano graphene platelets (NGPs)
Measurements and analyses referenced in the patent, with their drawing references.
FIG.2 (a) A SEM image of a graphite worm sample after exfoliation of graphite intercalation compounds (GICs); (b) An SEM image of a cross-section of a flexible …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
in-plane thermal conductivity ≥600 W/mK (claim 1 minimum) | ≥ 600 W/mK | integrated graphene film |
electrical conductivity >2000 S/cm (claim 1 feature iii) | ≥ 2000 S/cm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,363,932Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 A flow chart illustrating various prior art processes of producing exfoliated graphite products (flexible graphite sheets and flexible graphite composites) …
FIG.2 (a) A SEM image of a graphite worm sample after exfoliation of graphite intercalation compounds (GICs); (b) An SEM image of a cross-section of a flexible …
FIG.3 (A) Thermal conductivity, (B) electrical conductivity, and (C) tensile strength of GO gel bonded NGP composites as a function of the GO content in the …
FIG.4 Thermal conductivity values of GO gel bonded NGP composites, integrated graphene film from treated GO gel (heat treatment times 4 hours for GO and GO-NGP …
FIG.5 A Schematic drawing of the process for the continuous production of thin graphene composite film.
FIG.6 SEM images of (A) the surface of the flexible graphite sheet made by re-compression of expanded graphite and (B) the surface of thin graphene composite …
FIG.7 Illustration of an assembly of a thin graphene composite film in a display device.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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 or graphene oxide gel-bonded-nano graphene platelets (NGPs) 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 SVG 13507167.03-21-2016.IMCFHB₀KPXXIFW4.CLM.1.22.520.2099.634.2156.svg 0.19 0.38 Chemistry Black and white, or a tensile strength greater than 10 MPa.... The display device of claim 1 wherein the heat spreader comprises a laminate comprising a plurality of sheets of integrated graphene films.. The display device of claim 1, further comprising a heat dissipation device positioned in a location not directly adjacent to a heat source and wherein one of the major surfaces of the heat spreader is in operative contact with the heat dissipation device.
SVG 13507167.03-21-2016.IMCFHB₀KPXXIFW4.CLM.2.1.90.237.107.273.svg 0.12 0.057 Chemistry Black and white 6. The display device of claim 1, wherein the integrated graphene film has an in-plane thermal conductivity of at least 600 800 W/mK.
The display device of claim 1, wherein the integrated graphene film has an in- plane thermal conductivity of at least 1,500 W/mK.
The display device of claim 1, wherein the integrated graphene film further comprises a protective coating thereon.
The display device of claim 1, wherein the integrated graphene film further comprises a layer of adhesive applied thereon.
The display device of claim 1, wherein said integrated graphene film is a graphene composite film composed of nano graphene platelets (NGPs) bonded by a graphene oxide binder, wherein said NGPs contain single-layer graphene or multi-layer graphene sheets having a thickness from 0.335 nm to 100 nm, and said NGPs occupy a weight fraction of 1% to 99.9% of the total composite weight; and said graphene oxide binder, having an oxygen content of 0.1%- 40% by weight based on the total graphene oxide weight, occupies a weight fraction of 0.1% to 99% of the total composite weight, and wherein said composite forms a thin film with a thickness no greater than 1 mm and no less than 1 pm.
The display device of claim 1, wherein said integrated graphene film has a thickness greater than 10 p m, but less than 100 pm.
The display device of claim 1 wherein said integrated graphene film is a film produced from a graphene oxide gel, which is prepared by immersing a graphitic material in a powder or fibrous form in an oxidizing liquid to form an optically opaque suspension in a reaction vessel at a reaction temperature for a length of time sufficient to obtain a graphene oxide gel that is optically transparent or translucent, wherein said graphene oxide gel is composed of graphene oxide molecules dispersed in an acidic medium having a pH value of no higher than 5 and said graphene oxide molecules have an oxygen content no less than 20% by weight.
The display device of claim 1 wherein said integrated graphene film is a film produced from a graphene oxide gel, which is prepared by immersing a graphitic material in an oxidizing agent to form an optically opaque suspension and allowing an oxidizing reaction to proceed until an optically transparent or translucent solution is formed, and wherein said graphitic material is selected from natural graphite, artificial graphite, meso-phase carbon, meso-phase pitch, meso-carbon micro-bead, soft carbon, hard carbon, coke, tube, or a combination thereof.
The display device of claim 1, wherein a thermal heat spreader and a heat source.
The display device of claim 4, wherein the heat dissipation device comprises a heat sink, a heat pipe, a heat plate, or a combination thereof. 2
The display device of claim 22 wherein said re-graphitization temperature is in the range from 300 * C to 1,500 *C.
The display device of claim 22 wherein said re-graphitization temperature is in the range from 100 * C and 1,000 *C.
The display device of claim 22 wherein said thin film composition forms into a uni tary structure after said re-graphitization treatment.
The display device of claim 18 wherein said graphitic material is selected from ia tural graphite, artificial graphite, meso-phase carbon, meso-phase pitch, meso-carbon nicro-bead, soft carbon, hard carbon, coke, carbon fiber, carbon nano-fiber, carbon nano- tube, or a combination thereof.
Layer stacks claimed or described, ordered top of device to substrate.
integrated graphene film-enhanced display device with heat spreader
Materials described outside the worked examples.
integrated graphene film
nano graphene platelets (NGPs)
Measurements and analyses referenced in the patent, with their drawing references.
FIG.2 (a) A SEM image of a graphite worm sample after exfoliation of graphite intercalation compounds (GICs); (b) An SEM image of a cross-section of a flexible …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
in-plane thermal conductivity ≥600 W/mK (claim 1 minimum) | ≥ 600 W/mK | integrated graphene film |
electrical conductivity >2000 S/cm (claim 1 feature iii) | ≥ 2000 S/cm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,363,932Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 A flow chart illustrating various prior art processes of producing exfoliated graphite products (flexible graphite sheets and flexible graphite composites) …
FIG.2 (a) A SEM image of a graphite worm sample after exfoliation of graphite intercalation compounds (GICs); (b) An SEM image of a cross-section of a flexible …
FIG.3 (A) Thermal conductivity, (B) electrical conductivity, and (C) tensile strength of GO gel bonded NGP composites as a function of the GO content in the …
FIG.4 Thermal conductivity values of GO gel bonded NGP composites, integrated graphene film from treated GO gel (heat treatment times 4 hours for GO and GO-NGP …
FIG.5 A Schematic drawing of the process for the continuous production of thin graphene composite film.
FIG.6 SEM images of (A) the surface of the flexible graphite sheet made by re-compression of expanded graphite and (B) the surface of thin graphene composite …
FIG.7 Illustration of an assembly of a thin graphene composite film in a display device.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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 or graphene oxide gel-bonded-nano graphene platelets (NGPs) 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 SVG 13507167.03-21-2016.IMCFHB₀KPXXIFW4.CLM.1.22.520.2099.634.2156.svg 0.19 0.38 Chemistry Black and white, or a tensile strength greater than 10 MPa.... The display device of claim 1 wherein the heat spreader comprises a laminate comprising a plurality of sheets of integrated graphene films.. The display device of claim 1, further comprising a heat dissipation device positioned in a location not directly adjacent to a heat source and wherein one of the major surfaces of the heat spreader is in operative contact with the heat dissipation device.
SVG 13507167.03-21-2016.IMCFHB₀KPXXIFW4.CLM.2.1.90.237.107.273.svg 0.12 0.057 Chemistry Black and white 6. The display device of claim 1, wherein the integrated graphene film has an in-plane thermal conductivity of at least 600 800 W/mK.
The display device of claim 1, wherein the integrated graphene film has an in- plane thermal conductivity of at least 1,500 W/mK.
The display device of claim 1, wherein the integrated graphene film further comprises a protective coating thereon.
The display device of claim 1, wherein the integrated graphene film further comprises a layer of adhesive applied thereon.
The display device of claim 1, wherein said integrated graphene film is a graphene composite film composed of nano graphene platelets (NGPs) bonded by a graphene oxide binder, wherein said NGPs contain single-layer graphene or multi-layer graphene sheets having a thickness from 0.335 nm to 100 nm, and said NGPs occupy a weight fraction of 1% to 99.9% of the total composite weight; and said graphene oxide binder, having an oxygen content of 0.1%- 40% by weight based on the total graphene oxide weight, occupies a weight fraction of 0.1% to 99% of the total composite weight, and wherein said composite forms a thin film with a thickness no greater than 1 mm and no less than 1 pm.
The display device of claim 1, wherein said integrated graphene film has a thickness greater than 10 p m, but less than 100 pm.
The display device of claim 1 wherein said integrated graphene film is a film produced from a graphene oxide gel, which is prepared by immersing a graphitic material in a powder or fibrous form in an oxidizing liquid to form an optically opaque suspension in a reaction vessel at a reaction temperature for a length of time sufficient to obtain a graphene oxide gel that is optically transparent or translucent, wherein said graphene oxide gel is composed of graphene oxide molecules dispersed in an acidic medium having a pH value of no higher than 5 and said graphene oxide molecules have an oxygen content no less than 20% by weight.
The display device of claim 1 wherein said integrated graphene film is a film produced from a graphene oxide gel, which is prepared by immersing a graphitic material in an oxidizing agent to form an optically opaque suspension and allowing an oxidizing reaction to proceed until an optically transparent or translucent solution is formed, and wherein said graphitic material is selected from natural graphite, artificial graphite, meso-phase carbon, meso-phase pitch, meso-carbon micro-bead, soft carbon, hard carbon, coke, tube, or a combination thereof.
The display device of claim 1, wherein a thermal heat spreader and a heat source.
The display device of claim 4, wherein the heat dissipation device comprises a heat sink, a heat pipe, a heat plate, or a combination thereof. 2
The display device of claim 22 wherein said re-graphitization temperature is in the range from 300 * C to 1,500 *C.
The display device of claim 22 wherein said re-graphitization temperature is in the range from 100 * C and 1,000 *C.
The display device of claim 22 wherein said thin film composition forms into a uni tary structure after said re-graphitization treatment.
The display device of claim 18 wherein said graphitic material is selected from ia tural graphite, artificial graphite, meso-phase carbon, meso-phase pitch, meso-carbon nicro-bead, soft carbon, hard carbon, coke, carbon fiber, carbon nano-fiber, carbon nano- tube, or a combination thereof.
Layer stacks claimed or described, ordered top of device to substrate.
integrated graphene film-enhanced display device with heat spreader
Materials described outside the worked examples.
integrated graphene film
nano graphene platelets (NGPs)
Measurements and analyses referenced in the patent, with their drawing references.
FIG.2 (a) A SEM image of a graphite worm sample after exfoliation of graphite intercalation compounds (GICs); (b) An SEM image of a cross-section of a flexible …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
in-plane thermal conductivity ≥600 W/mK (claim 1 minimum) | ≥ 600 W/mK | integrated graphene film |
electrical conductivity >2000 S/cm (claim 1 feature iii) | ≥ 2000 S/cm |
Related documents with shared materials, methods, properties, or citations.
graphene oxide gel
graphene oxide binder
pristine graphene
graphitic material precursor
graphene oxide gel (from oxidizing liquid treatment)
FIG.3 (A) Thermal conductivity, (B) electrical conductivity, and (C) tensile strength of GO gel bonded NGP composites as a function of the GO content in the …
FIG.6 SEM images of (A) the surface of the flexible graphite sheet made by re-compression of expanded graphite and (B) the surface of thin graphene composite …
integrated graphene film |
tensile strength >10 MPa (claim 1 feature iii) | ≥ 10 MPa | integrated graphene film |
in-plane thermal conductivity ≥1500 W/mK (claim 7) | ≥ 1500 W/mK | integrated graphene film |
electrical conductivity >3000 S/cm (claim 28) | ≥ 3000 S/cm | integrated graphene film |
electrical conductivity >1500 S/cm, thermal conductivity >600 W/mK, density >1.4 g/cm3, tensile strength >10 MPa (claim 30) | ≥ 1500 S/cm | integrated graphene film |
electrical conductivity >2000 S/cm, thermal conductivity >800 W/mK, density >1.8 g/cm3, tensile strength >40 MPa (claim 31) | ≥ 2000 S/cm | integrated graphene film |
electrical conductivity >3000 S/cm, thermal conductivity >1500 W/mK, density >2.0 g/cm3, tensile strength >40 MPa (claim 32) | ≥ 3000 S/cm | integrated graphene film |
Duration | 15–120 s | — |
Duration | 900–7200 s | — |
— | 140–450 W | — |
— | 3000–5000 W | — |
— | 140–300 W | — |
— | 600–2230 W | — |
Duration | 2–4 hours | — |
Thickness | ≥ 0.125 mm | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
— | ≥ 800 W | — |
Pressure | ≥ 40 MPa | — |
— | ≥ 1800 W | — |
— | ≥ 1600 W | — |
Thickness | 0.335–100 nm | — |
Thickness | 6.7–20 nm | — |
— | ≥ 600 W | — |
— | ≥ 1500 W | — |
Thickness | 3.35–33.5 nm | — |
— | ≥ 1 W | — |
graphene oxide gel
graphene oxide binder
pristine graphene
graphitic material precursor
graphene oxide gel (from oxidizing liquid treatment)
FIG.3 (A) Thermal conductivity, (B) electrical conductivity, and (C) tensile strength of GO gel bonded NGP composites as a function of the GO content in the …
FIG.6 SEM images of (A) the surface of the flexible graphite sheet made by re-compression of expanded graphite and (B) the surface of thin graphene composite …
integrated graphene film |
tensile strength >10 MPa (claim 1 feature iii) | ≥ 10 MPa | integrated graphene film |
in-plane thermal conductivity ≥1500 W/mK (claim 7) | ≥ 1500 W/mK | integrated graphene film |
electrical conductivity >3000 S/cm (claim 28) | ≥ 3000 S/cm | integrated graphene film |
electrical conductivity >1500 S/cm, thermal conductivity >600 W/mK, density >1.4 g/cm3, tensile strength >10 MPa (claim 30) | ≥ 1500 S/cm | integrated graphene film |
electrical conductivity >2000 S/cm, thermal conductivity >800 W/mK, density >1.8 g/cm3, tensile strength >40 MPa (claim 31) | ≥ 2000 S/cm | integrated graphene film |
electrical conductivity >3000 S/cm, thermal conductivity >1500 W/mK, density >2.0 g/cm3, tensile strength >40 MPa (claim 32) | ≥ 3000 S/cm | integrated graphene film |
Duration | 15–120 s | — |
Duration | 900–7200 s | — |
— | 140–450 W | — |
— | 3000–5000 W | — |
— | 140–300 W | — |
— | 600–2230 W | — |
Duration | 2–4 hours | — |
Thickness | ≥ 0.125 mm | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
— | ≥ 800 W | — |
Pressure | ≥ 40 MPa | — |
— | ≥ 1800 W | — |
— | ≥ 1600 W | — |
Thickness | 0.335–100 nm | — |
Thickness | 6.7–20 nm | — |
— | ≥ 600 W | — |
— | ≥ 1500 W | — |
Thickness | 3.35–33.5 nm | — |
— | ≥ 1 W | — |
graphene oxide gel
graphene oxide binder
pristine graphene
graphitic material precursor
graphene oxide gel (from oxidizing liquid treatment)
FIG.3 (A) Thermal conductivity, (B) electrical conductivity, and (C) tensile strength of GO gel bonded NGP composites as a function of the GO content in the …
FIG.6 SEM images of (A) the surface of the flexible graphite sheet made by re-compression of expanded graphite and (B) the surface of thin graphene composite …
integrated graphene film |
tensile strength >10 MPa (claim 1 feature iii) | ≥ 10 MPa | integrated graphene film |
in-plane thermal conductivity ≥1500 W/mK (claim 7) | ≥ 1500 W/mK | integrated graphene film |
electrical conductivity >3000 S/cm (claim 28) | ≥ 3000 S/cm | integrated graphene film |
electrical conductivity >1500 S/cm, thermal conductivity >600 W/mK, density >1.4 g/cm3, tensile strength >10 MPa (claim 30) | ≥ 1500 S/cm | integrated graphene film |
electrical conductivity >2000 S/cm, thermal conductivity >800 W/mK, density >1.8 g/cm3, tensile strength >40 MPa (claim 31) | ≥ 2000 S/cm | integrated graphene film |
electrical conductivity >3000 S/cm, thermal conductivity >1500 W/mK, density >2.0 g/cm3, tensile strength >40 MPa (claim 32) | ≥ 3000 S/cm | integrated graphene film |
Duration | 15–120 s | — |
Duration | 900–7200 s | — |
— | 140–450 W | — |
— | 3000–5000 W | — |
— | 140–300 W | — |
— | 600–2230 W | — |
Duration | 2–4 hours | — |
Thickness | ≥ 0.125 mm | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
— | ≥ 800 W | — |
Pressure | ≥ 40 MPa | — |
— | ≥ 1800 W | — |
— | ≥ 1600 W | — |
Thickness | 0.335–100 nm | — |
Thickness | 6.7–20 nm | — |
— | ≥ 600 W | — |
— | ≥ 1500 W | — |
Thickness | 3.35–33.5 nm | — |
— | ≥ 1 W | — |
graphene oxide gel
graphene oxide binder
pristine graphene
graphitic material precursor
graphene oxide gel (from oxidizing liquid treatment)
FIG.3 (A) Thermal conductivity, (B) electrical conductivity, and (C) tensile strength of GO gel bonded NGP composites as a function of the GO content in the …
FIG.6 SEM images of (A) the surface of the flexible graphite sheet made by re-compression of expanded graphite and (B) the surface of thin graphene composite …
integrated graphene film |
tensile strength >10 MPa (claim 1 feature iii) | ≥ 10 MPa | integrated graphene film |
in-plane thermal conductivity ≥1500 W/mK (claim 7) | ≥ 1500 W/mK | integrated graphene film |
electrical conductivity >3000 S/cm (claim 28) | ≥ 3000 S/cm | integrated graphene film |
electrical conductivity >1500 S/cm, thermal conductivity >600 W/mK, density >1.4 g/cm3, tensile strength >10 MPa (claim 30) | ≥ 1500 S/cm | integrated graphene film |
electrical conductivity >2000 S/cm, thermal conductivity >800 W/mK, density >1.8 g/cm3, tensile strength >40 MPa (claim 31) | ≥ 2000 S/cm | integrated graphene film |
electrical conductivity >3000 S/cm, thermal conductivity >1500 W/mK, density >2.0 g/cm3, tensile strength >40 MPa (claim 32) | ≥ 3000 S/cm | integrated graphene film |
Duration | 15–120 s | — |
Duration | 900–7200 s | — |
— | 140–450 W | — |
— | 3000–5000 W | — |
— | 140–300 W | — |
— | 600–2230 W | — |
Duration | 2–4 hours | — |
Thickness | ≥ 0.125 mm | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
— | ≥ 800 W | — |
Pressure | ≥ 40 MPa | — |
— | ≥ 1800 W | — |
— | ≥ 1600 W | — |
Thickness | 0.335–100 nm | — |
Thickness | 6.7–20 nm | — |
— | ≥ 600 W | — |
— | ≥ 1500 W | — |
Thickness | 3.35–33.5 nm | — |
— | ≥ 1 W | — |