Patents by Inventor Edward Andrew BOARDMAN
Edward Andrew BOARDMAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240008344Abstract: A foldable display device includes a plurality of layers bonded to each other. The plurality of layers includes a light emitting diode substrate layer, a cover window layer including a window film through which light from a first surface of the light emitting diode substrate layer is emitted, a shock-absorber layer located on a second surface of the light emitting diode substrate layer. The second surface is a surface opposite to the first surface. A dimension of the light emitting diode substrate layer measured along a folding axis is larger than a dimension of at least one layer in the plurality of layers.Type: ApplicationFiled: June 16, 2023Publication date: January 4, 2024Inventors: Edward Andrew BOARDMAN, Takehiro MURAO
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Patent number: 11730008Abstract: A light emitting device comprises a first electrode, a second electrode, and an emissive layer (EML) between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode. The EML comprises a charge transport matrix of a first polarity, a plurality of quantum dots in the charge transport matrix, and a plurality of charge transport nanoparticles of a second polarity in the charge transport matrix.Type: GrantFiled: February 16, 2021Date of Patent: August 15, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Enrico Angioni, Iain Hamilton, Edward Andrew Boardman, Andrea Zampetti
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Patent number: 11626534Abstract: A quantum dot LED display apparatus includes a substrate having a plurality of banks deposited thereon. A plurality of red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels are individually disposed between the banks. Each of the red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels has an emissive layer, wherein each of the emissive layers comprises quantum dots, an organic matrix, and a photoinitiator. A first concentration of the photoinitiator in the blue emitting LED sub-pixels is lower than a second concentration of the photoinitiator in the red emitting LED sub-pixels, and lower than a third concentration of the photoinitiator in the green emitting LED sub-pixels.Type: GrantFiled: June 8, 2021Date of Patent: April 11, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Edward Andrew Boardman, Enrico Angioni, Tim Michael Smeeton
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Publication number: 20220393061Abstract: A quantum dot LED display apparatus includes a substrate having a plurality of banks deposited thereon. A plurality of red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels are individually disposed between the banks. Each of the red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels has an emissive layer, wherein each of the emissive layers comprises quantum dots, an organic matrix, and a photoinitiator. A first concentration of the photoinitiator in the blue emitting LED sub-pixels is lower than a second concentration of the photoinitiator in the red emitting LED sub-pixels, and lower than a third concentration of the photoinitiator in the green emitting LED sub-pixels.Type: ApplicationFiled: June 8, 2021Publication date: December 8, 2022Inventors: EDWARD ANDREW BOARDMAN, ENRICO ANGIONI, TIM MICHAEL SMEETON
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Publication number: 20220367822Abstract: A foldable display device includes an organic light emitting diode (OLED) display substrate, a stress relief layer parallel with the OLED display substrate, and a first adhesive layer between the OLED display substrate and the stress relief layer. A value of v/E of the OLED display substrate is larger than a value of v/E of the stress relief layer, where v is a Poisson's ratio and E is a Young's modulus.Type: ApplicationFiled: May 13, 2021Publication date: November 17, 2022Inventor: EDWARD ANDREW BOARDMAN
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Publication number: 20220263039Abstract: A light emitting device comprises a first electrode, a second electrode, and an emissive layer (EML) between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode. The EML comprises a charge transport matrix of a first polarity, a plurality of quantum dots in the charge transport matrix, and a plurality of charge transport nanoparticles of a second polarity in the charge transport matrix.Type: ApplicationFiled: February 16, 2021Publication date: August 18, 2022Inventors: ENRICO ANGIONI, IAIN HAMILTON, EDWARD ANDREW BOARDMAN, ANDREA ZAMPETTI
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Patent number: 11327531Abstract: A shock-absorbing display panel apparatus for folding flat screen displays, the shock-absorbing apparatus includes a planar display layer comprising a viewing surface and an opposing non-viewing surface, the display layer further comprising at least one folding region and at least one non-folding region for folding along at least one axis of rotation; a shock absorber in co-planar peripheral contour with the display layer, the shock absorber having at least one first discontinuity sub-dividing the shock absorber into physically separate regions; an adhesive layer disposed between the shock absorber and the non-viewing surface; and wherein the adhesive layer has at least one second discontinuity between the shock absorber and the display panel in the at least one folding region of the display layer.Type: GrantFiled: September 30, 2020Date of Patent: May 10, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Edward Andrew Boardman, Tim Michael Smeeton
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Patent number: 11322707Abstract: A light-emitting device is configured to emit light in improved accordance with the Rec. 2020 specification. The light emitting device includes a substrate; a first electrode disposed on the substrate between an outer surface of the light emitting device and the substrate; a second electrode disposed between the first electrode and the outer surface; a first emissive layer in electrical contact with the first electrode and the second electrode, wherein the first emissive layer includes quantum dots that emit light when electrically excited, and wherein the first emissive layer is associated with a first peak wavelength, ?1; and a second emissive layer disposed between the first emissive layer and a viewing side of the light emitting device, wherein the second emissive layer is a photoluminescent layer that includes quantum dots that emit light when optically excited, and the second emissive layer is associated with a second peak wavelength, ?2, different from the first peak wavelength.Type: GrantFiled: September 10, 2020Date of Patent: May 3, 2022Assignee: Sharp Kabushiki KaishaInventors: Edward Andrew Boardman, Enrico Angioni, Tim Michael Smeeton
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Patent number: 11316135Abstract: A light-emitting layer structure that maximizes constructive interference for light emission by varying a phase shift introduced by reflective electrodes. The light-emitting layer structure includes a first and second optical cavity including a first and second reflective electrode; a first and second partially transparent electrode; and a first and second emissive layer (EML) disposed between the first and second reflective electrodes and the first and second partially transparent electrodes, wherein the first EML emits light having a first wavelength; wherein the first reflective electrode introduces a first phase shift, depending on the first wavelength, on reflection of light emitted by the first EML; and wherein the second EML emits light having a second wavelength and the second reflective electrode introduces a second phase shift, depending on the second wavelength, on reflection of light emitted by the second EML, and the first phase shift is different from the second phase shift.Type: GrantFiled: November 10, 2020Date of Patent: April 26, 2022Assignee: Sharp Kabushiki KaishaInventors: David James Montgomery, Edward Andrew Boardman, Tim Michael Smeeton
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Publication number: 20220102671Abstract: A shock-absorbing display panel apparatus for folding flat screen displays, the shock-absorbing apparatus includes a planar display layer comprising a viewing surface and an opposing non-viewing surface, the display layer further comprising at least one folding region and at least one non-folding region for folding along at least one axis of rotation; a shock absorber in co-planar peripheral contour with the display layer, the shock absorber having at least one first discontinuity sub-dividing the shock absorber into physically separate regions; an adhesive layer disposed between the shock absorber and the non-viewing surface; and wherein the adhesive layer has at least one second discontinuity between the shock absorber and the display panel in the at least one folding region of the display layer.Type: ApplicationFiled: September 30, 2020Publication date: March 31, 2022Inventors: EDWARD ANDREW BOARDMAN, TIM MICHAEL SMEETON
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Publication number: 20210328165Abstract: A light emitting device comprises a first electrode, a second electrode, and an emissive layer between the first and the second electrodes. The emissive layer comprises a first plurality of quantum dots having hole transporting ligands, and a second plurality of quantum dots having electron transporting ligands, where at least one of the first and the second plurality of quantum dots is incorporated in a matrix. The matrix comprises at least one of an electrically insulating material, a photo-responsive material, and a dielectric material. The matrix comprises cross-linked molecules, the cross-linked molecules transport charge carriers to or away from the at least one of the first plurality of quantum dots and the second plurality of quantum dots that is incorporated in the matrix.Type: ApplicationFiled: April 21, 2020Publication date: October 21, 2021Inventors: ANDREA ZAMPETTI, ENRICO ANGIONI, EDWARD ANDREW BOARDMAN, TIM MICHAEL SMEETON
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Patent number: 11133438Abstract: A light-emitting device incorporates an electrode that includes conductive nanoparticles to increase emission performance. A light-emitting device includes a substrate; a first electrode disposed on the substrate between a viewing side of the light-emitting device and the substrate; a second electrode disposed between the first electrode and the viewing side of the light-emitting device, wherein the second electrode includes a layer of nanoparticles that are electrically conductive; and an emissive layer comprising quantum nanoparticles in electrical contact with the first electrode and the second electrode, wherein the first emissive layer includes a material that emits light when electrically excited. Multiple light-emitting devices may constitute sub-pixels that are combined into a pixel, such as for a display device, wherein each sub-pixel emits light of a different color.Type: GrantFiled: November 20, 2019Date of Patent: September 28, 2021Assignee: Sharp Kabushiki KaishaInventors: Edward Andrew Boardman, Tim Michael Smeeton
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Publication number: 20210151629Abstract: A light-emitting device incorporates an electrode that includes conductive nanoparticles to increase emission performance. A light-emitting device includes a substrate; a first electrode disposed on the substrate between a viewing side of the light-emitting device and the substrate; a second electrode disposed between the first electrode and the viewing side of the light-emitting device, wherein the second electrode includes a layer of nanoparticles that are electrically conductive; and an emissive layer comprising quantum nanoparticles in electrical contact with the first electrode and the second electrode, wherein the first emissive layer includes a material that emits light when electrically excited. Multiple light-emitting devices may constitute sub-pixels that are combined into a pixel, such as for a display device, wherein each sub-pixel emits light of a different color.Type: ApplicationFiled: November 20, 2019Publication date: May 20, 2021Inventors: Edward Andrew Boardman, Tim Michael Smeeton
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Patent number: 10991900Abstract: A light-emitting device includes an anode; a cathode; and an emissive layer disposed between the anode and the cathode, the emissive layer including quantum dots dispersed in a crosslinked matrix formed from one or more crosslinkable charge transport materials. A method of forming the emissive layer of a light-emitting device includes depositing a mixture including quantum dots and one or more crosslinkable charge transport materials on a layer; and subjecting at least a portion of the mixture to UV activation to form an emissive layer including quantum dots dispersed in a crosslinked matrix.Type: GrantFiled: December 23, 2019Date of Patent: April 27, 2021Assignee: Sharp Kabushiki KaishaInventors: Enrico Angioni, James Andrew Robert Palles-Dimmock, Edward Andrew Boardman, Tim Michael Smeeton
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Patent number: 10985336Abstract: A light-emitting device includes a first electrode, a second electrode, and an emissive layer between the first and second electrodes, where the emissive layer comprises quantum dots and oxygen scavenging nanoparticles. The oxygen scavenging nanoparticles comprise at least one of one or more iron based materials, and one or more organic polymer based materials.Type: GrantFiled: January 6, 2020Date of Patent: April 20, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Iain Hamilton, Edward Andrew Boardman, Enrico Angioni, Tim Michael Smeeton
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Publication number: 20210057676Abstract: A light-emitting layer structure that maximizes constructive interference for light emission by varying a phase shift introduced by reflective electrodes. The light-emitting layer structure includes a first and second optical cavity including a first and second reflective electrode; a first and second partially transparent electrode; and a first and second emissive layer (EML) disposed between the first and second reflective electrodes and the first and second partially transparent electrodes, wherein the first EML emits light having a first wavelength; wherein the first reflective electrode introduces a first phase shift, depending on the first wavelength, on reflection of light emitted by the first EML; and wherein the second EML emits light having a second wavelength and the second reflective electrode introduces a second phase shift, depending on the second wavelength, on reflection of light emitted by the second EML, and the first phase shift is different from the second phase shift.Type: ApplicationFiled: November 10, 2020Publication date: February 25, 2021Inventors: David James Montgomery, Edward Andrew Boardman, Tim Michael Smeeton
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Patent number: 10930888Abstract: A light-emitting layer structure that maximizes constructive interference for light emission by varying a phase shift introduced by reflective electrodes. The light-emitting layer structure includes a first and second optical cavity including a first and second reflective electrode; a first and second partially transparent electrode; and a first and second emissive layer (EML) disposed between the first and second reflective electrodes and the first and second partially transparent electrodes, wherein the first EML emits light having a first wavelength; wherein the first reflective electrode introduces a first phase shift, depending on the first wavelength, on reflection of light emitted by the first EML; and wherein the second EML emits light having a second wavelength and the second reflective electrode introduces a second phase shift, depending on the second wavelength, on reflection of light emitted by the second EML, and the first phase shift is different from the second phase shift.Type: GrantFiled: July 22, 2019Date of Patent: February 23, 2021Assignee: Sharp Kabushiki KaishaInventors: David James Montgomery, Edward Andrew Boardman, Tim Michael Smeeton
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Publication number: 20210028401Abstract: A light-emitting layer structure that maximizes constructive interference for light emission by varying a phase shift introduced by reflective electrodes. The light-emitting layer structure includes a first and second optical cavity including a first and second reflective electrode; a first and second partially transparent electrode; and a first and second emissive layer (EML) disposed between the first and second reflective electrodes and the first and second partially transparent electrodes, wherein the first EML emits light having a first wavelength; wherein the first reflective electrode introduces a first phase shift, depending on the first wavelength, on reflection of light emitted by the first EML; and wherein the second EML emits light having a second wavelength and the second reflective electrode introduces a second phase shift, depending on the second wavelength, on reflection of light emitted by the second EML, and the first phase shift is different from the second phase shift.Type: ApplicationFiled: July 22, 2019Publication date: January 28, 2021Inventors: David James Montgomery, Edward Andrew Boardman, Tim Michael Smeeton
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Patent number: 10897024Abstract: A light-emitting device includes an anode; a cathode; and an emissive layer disposed between the anode and the cathode, the emissive layer including quantum dots dispersed in a crosslinked matrix formed from one or more crosslinkable charge transport materials. A method of forming the emissive layer of a light-emitting device includes depositing a mixture including quantum dots and one or more crosslinkable charge transport materials on a layer; and subjecting at least a portion of the mixture to UV activation to form an emissive layer including quantum dots dispersed in a crosslinked matrix.Type: GrantFiled: December 23, 2019Date of Patent: January 19, 2021Assignee: Sharp Kabushiki KaishaInventors: Enrico Angioni, James Andrew Robert Palles-Dimmock, Edward Andrew Boardman, Tim Michael Smeeton
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Publication number: 20200411786Abstract: A light-emitting device is configured to emit light in improved accordance with the Rec. 2020 specification. The light emitting device includes a substrate; a first electrode disposed on the substrate between an outer surface of the light emitting device and the substrate; a second electrode disposed between the first electrode and the outer surface; a first emissive layer in electrical contact with the first electrode and the second electrode, wherein the first emissive layer includes quantum dots that emit light when electrically excited, and wherein the first emissive layer is associated with a first peak wavelength, ?1; and a second emissive layer disposed between the first emissive layer and a viewing side of the light emitting device, wherein the second emissive layer is a photoluminescent layer that includes quantum dots that emit light when optically excited, and the second emissive layer is associated with a second peak wavelength, ?2, different from the first peak wavelength.Type: ApplicationFiled: September 10, 2020Publication date: December 31, 2020Inventors: Edward Andrew Boardman, Enrico Angioni, Tim Michael Smeeton