Patents by Inventor Joseph O'Keeffe
Joseph O'Keeffe 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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Patent number: 10937361Abstract: A sub-pixel for an LED display, the sub-pixel comprising a first light emitting device having a first emission beam angle and a second light emitting device having a second beam angle, the second emission beam angle being different to the first emission beam angle. There is also described a display using a plurality of the sub-pixels.Type: GrantFiled: October 22, 2015Date of Patent: March 2, 2021Assignee: Facebook Technologies, LLCInventors: Padraig Hughes, Joseph O'Keeffe, William Henry
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Patent number: 10930529Abstract: A light emitting diode (LED) includes an elastomeric material that facilitates adhesive attachment with a pick-up head for pick and place operations. The LED includes an epitaxial layer defining a mesa structure and a light emitting surface. The mesa structure includes an active layer to emit light, and the emitted light is reflected at the mesa structure toward a light emitting region of the light emitting surface and transmitted at the light emitting region. An elastomeric material is on a portion of the light emitting surface, such as the light emitting region or a passive region. At the light emitting region, the elastomeric material may be shaped as a lens that collimates light transmitted from the light emitting region, and also facilitates adhesion to the pick-up head. At the passive region, the elastomeric material facilitates adhesion to the pick-up head without interfering with light emitted from the light emitting region.Type: GrantFiled: January 9, 2020Date of Patent: February 23, 2021Assignee: Facebook Technologies, LLCInventors: Pooya Saketi, Patrick Joseph Hughes, William Padraic Henry, Joseph O'Keeffe
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Patent number: 10878733Abstract: A method for manufacturing a display element comprising a plurality of pixels, each comprising a plurality of sub-pixels. The method comprises undertaking, using a pick up tool, a first placement cycle (1908) comprising picking up a plurality of first, untested LED dies and placing them on a display substrate at locations corresponding to the plurality of pixels, testing (1912) the first LED emitters on the display substrate to determine one or more locations of non-functional first LED emitters, selecting one or more second tested LED dies based on a result of the test, configuring the selected one or more second LED dies to enable their pick up and placement on the display substrate and undertaking, using the PUT, a second placement cycle (2008) comprising picking up the selected one or more second LED dies and placing them on the display substrate at the determined locations of the non-functional first LED emitters.Type: GrantFiled: September 2, 2016Date of Patent: December 29, 2020Assignee: Facebook Technologies, LLCInventors: Padraig Hughes, Joseph O'Keeffe, Celine Oyer, William Henry, David Massoubre, Pooya Saketi
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Patent number: 10863658Abstract: Methods and apparatus for use in the manufacture of a display element. Some embodiments include a method for selective pick up of a subset of a plurality of electronic devices adhered to a handle layer. The method comprises modifying a level of adhesion between one or more electronic devices of the plurality of electronic devices adhered to the handle layer, such that the subset of the plurality of electronic devices has a level of adhesion to the handle layer that is less than a force applied by a pick up tool, PUT. This enables selective pick up of the subset of the plurality of electronic devices from the handle layer by the PUT.Type: GrantFiled: July 3, 2018Date of Patent: December 8, 2020Assignee: Facebook Technologies, LLCInventors: Allan Pourchet, William Padraic Henry, Patrick Joseph Hughes, Joseph O'Keeffe
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Publication number: 20200343228Abstract: An image generator for use in a display device, the image generator comprising a plurality of ILED array chips each comprising a plurality of ILED emitters and arranged in an array such that each of a plurality of pixels of the image generator comprises an ILED emitter from each of a plurality of adjacent ILED array chips. The total area of ILED emitter material be less than 50% of the area of each pixel. The image generator may comprise secondary optics in optical communication with an output of the plurality of ILED emitters of an ILED array chip and configured to direct light from the ILED emitters towards an emission region of the associated pixel.Type: ApplicationFiled: May 22, 2020Publication date: October 29, 2020Inventors: William Henry, Padraig Hughes, Joseph O'Keeffe
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Patent number: 10720468Abstract: Methods and apparatus for use in the manufacture of a display device including pixels. Each pixel includes a plurality of sub-pixels, each sub-pixel configured to provide light of a given wavelength. The method may include: performing, using a pick up tool (PUT), a first placement cycle comprising picking up first light emitting diode (LED) dies, and placing a first LED die on a substrate of the display device at a location corresponding to a sub-pixel the display device. The method further includes performing one or more subsequent placement cycles comprising picking up a second LED die, and placing the second LED die on the substrate of the display device at a second location corresponding to the sub-pixel of the display device. Multiple first and second LED dies may be picked and placed during each placement cycle to populate each pixel of the display device to provide redundancy of LED dies at each sub-pixel.Type: GrantFiled: October 11, 2018Date of Patent: July 21, 2020Assignee: Facebook Technologies, LLCInventors: Patrick Joseph Hughes, Vincent Brennan, Joseph O'Keeffe, Christopher Percival, William Padraic Henry, Tilman Zehender
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Patent number: 10707191Abstract: An image generator for use in a display device, the image generator comprising a plurality of ILED array chips each comprising a plurality of ILED emitters and arranged in an array such that each of a plurality of pixels of the image generator comprises an ILED emitter from each of a plurality of adjacent ILED array chips. The total area of ILED emitter material be less than 50% of the area of each pixel. The image generator may comprise secondary optics in optical communication with an output of the plurality of ILED emitters of an ILED array chip and configured to direct light from the ILED emitters towards an emission region of the associated pixel.Type: GrantFiled: February 6, 2019Date of Patent: July 7, 2020Assignee: Facebook Technologies, LLCInventors: William Henry, Padraig Hughes, Joseph O'Keeffe
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Publication number: 20200168146Abstract: A display (100) comprising a plurality of LED chips (604), each LED chip (604) comprising a plurality of light emitting elements (606a-c). Each LED chip (604) is arranged such that a first light emitting element (606a) is configured to illuminate a sub-pixel, and a second light emitting element (606b) is configured to illuminate a sub-pixel using substantially the same wavelength of light as the first light emitting element. There is also described an LED chip, a display pixel, a controlling method, a computer device and a computer program for a display.Type: ApplicationFiled: December 9, 2019Publication date: May 28, 2020Inventors: Padraig Hughes, William Henry, Joseph O'Keeffe
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Publication number: 20200152492Abstract: A light emitting diode (LED) includes an elastomeric material that facilitates adhesive attachment with a pick-up head for pick and place operations. The LED includes an epitaxial layer defining a mesa structure and a light emitting surface. The mesa structure includes an active layer to emit light, and the emitted light is reflected at the mesa structure toward a light emitting region of the light emitting surface and transmitted at the light emitting region. An elastomeric material is on a portion of the light emitting surface, such as the light emitting region or a passive region. At the light emitting region, the elastomeric material may be shaped as a lens that collimates light transmitted from the light emitting region, and also facilitates adhesion to the pick-up head. At the passive region, the elastomeric material facilitates adhesion to the pick-up head without interfering with light emitted from the light emitting region.Type: ApplicationFiled: January 9, 2020Publication date: May 14, 2020Inventors: Pooya Saketi, Patrick Joseph Hughes, William Padraic Henry, Joseph O'Keeffe
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Publication number: 20200126477Abstract: A method of fabricating an image generator for use in a display, the method comprising: fabricating a plurality of discrete ILED array chips comprising a plurality of ILED emitters configured to produce light having the same wavelength, and wherein each of the plurality of ILED array chips is configured to produce light having one of a plurality of wavelengths; positioning the plurality of discrete ILED array chips on a carrier substrate such that a plurality of ILED emitters from adjacent chips form a pixel of a display; and bonding a first surface of the plurality of ILED array chips to a driver backplane such that electrical contacts of the plurality of ILED array chips are in electrical communication with the driver backplane, wherein the driver backplane comprises electronics for driving the ILED array chips.Type: ApplicationFiled: November 5, 2019Publication date: April 23, 2020Inventors: William Henry, Padraig Hughes, Joseph O'Keeffe
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Patent number: 10600823Abstract: A method for manufacturing a display element comprising a plurality of pixels, each comprising a plurality of subpixels. The method comprises undertaking, using a pick up tool, a first placement cycle (1908) comprising picking up a plurality of first, untested LED dies and placing them on a display substrate at locations corresponding to the plurality of pixels, testing (1912) the first LED emitters on the display substrate to determine one or more locations of non-functional first LED emitters, selecting one or more second tested LED dies based on a result of the test, configuring the selected one or more second LED dies to enable their pick up and placement on the display substrate and undertaking, using the PUT, a second placement cycle (2008) comprising picking up the selected one or more second LED dies and placing them on the display substrate at the determined locations of the nonfunctional first LED emitters.Type: GrantFiled: March 12, 2018Date of Patent: March 24, 2020Assignee: Facebook Technologies, LLCInventors: Padraig Hughes, Joseph O'Keeffe, Celine Oyer, William Henry, David Massoubre, Pooya Saketi
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Patent number: 10566220Abstract: A light emitting diode (LED) includes an elastomeric material that facilitates adhesive attachment with a pick-up head for pick and place manufacturing operations. The LED includes an epitaxial layer defining a mesa structure and a light emitting surface. The mesa structure includes an active layer to emit light, and the emitted light is reflected at the mesa structure toward a light emitting region of the light emitting surface and transmitted at the light emitting region. An elastomeric material is on a portion of the light emitting surface, such as the light emitting region or a passive region. At the light emitting region, the elastomeric material may be shaped as a lens that collimates light transmitted from the light emitting region, and also facilitates adhesion to the pick-up head. At the passive region, the elastomeric material facilitates adhesion to the pick-up head without interfering with light emitted from the light emitting region.Type: GrantFiled: May 2, 2019Date of Patent: February 18, 2020Assignee: Facebook Technologies, LLCInventors: Pooya Saketi, Patrick Joseph Hughes, William Padraic Henry, Joseph O'Keeffe
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Patent number: 10535295Abstract: A display (100) comprising a plurality of LED chips (604), each LED chip (604) comprising a plurality of light emitting elements (606a-c). Each LED chip (604) is arranged such that a first light emitting element (606a) is configured to illuminate a sub-pixel, and a second light emitting element (606b) is configured to illuminate a sub-pixel using substantially the same wavelength of light as the first light emitting element. There is also described an LED chip, a display pixel, a controlling method, a computer device and a computer program for a display.Type: GrantFiled: October 22, 2015Date of Patent: January 14, 2020Assignee: Facebook Technologies, LLCInventors: Padraig Hughes, William Henry, Joseph O'Keeffe
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Patent number: 10515580Abstract: A method of fabricating an image generator for use in a display, the method comprising: fabricating a plurality of discrete ILED array chips comprising a plurality of ILED emitters configured to produce light having the same wavelength, and wherein each of the plurality of ILED array chips is configured to produce light having one of a plurality of wavelengths; positioning the plurality of discrete ILED array chips on a carrier substrate such that a plurality of ILED emitters from adjacent chips form a pixel of a display; and bonding a first surface of the plurality of ILED array chips to a driver backplane such that electrical contacts of the plurality of ILED array chips are in electrical communication with the driver backplane, wherein the driver backplane comprises electronics for driving the ILED array chips.Type: GrantFiled: July 31, 2015Date of Patent: December 24, 2019Assignee: Facebook Technologies, LLCInventors: William Henry, Padraig Hughes, Joseph O'Keeffe
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Publication number: 20190259643Abstract: A light emitting diode (LED) includes an elastomeric material that facilitates adhesive attachment with a pick-up head for pick and place manufacturing operations. The LED includes an epitaxial layer defining a mesa structure and a light emitting surface. The mesa structure includes an active layer to emit light, and the emitted light is reflected at the mesa structure toward a light emitting region of the light emitting surface and transmitted at the light emitting region. An elastomeric material is on a portion of the light emitting surface, such as the light emitting region or a passive region. At the light emitting region, the elastomeric material may be shaped as a lens that collimates light transmitted from the light emitting region, and also facilitates adhesion to the pick-up head. At the passive region, the elastomeric material facilitates adhesion to the pick-up head without interfering with light emitted from the light emitting region.Type: ApplicationFiled: May 2, 2019Publication date: August 22, 2019Inventors: Pooya Saketi, Patrick Joseph Hughes, William Padraic Henry, Joseph O'Keeffe
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Publication number: 20190237442Abstract: An image generator for use in a display device, the image generator comprising a plurality of ILED array chips each comprising a plurality of ILED emitters and arranged in an array such that each of a plurality of pixels of the image generator comprises an ILED emitter from each of a plurality of adjacent ILED array chips. The toal area of ILED emitter material be less than 50% of the area of each pixel. The image generator may comprise secondary optics in optical communication with an output of the plurality of ILED emitters of an ILED array chip and configured to direct light from the ILED emitters towards an emission region of the associated pixel.Type: ApplicationFiled: February 6, 2019Publication date: August 1, 2019Inventors: William Henry, Padraig Hughes, Joseph O'Keeffe
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Patent number: 10325791Abstract: A light emitting diode (LED) includes an elastomeric material that facilitates adhesive attachment with a pick-up head for pick and place manufacturing operations. The LED includes an epitaxial layer defining a mesa structure and a light emitting surface. The mesa structure includes an active layer to emit light, and the emitted light is reflected at the mesa structure toward a light emitting region of the light emitting surface and transmitted at the light emitting region. An elastomeric material is on a portion of the light emitting surface, such as the light emitting region or a passive region. At the light emitting region, the elastomeric material may be shaped as a lens that collimates light transmitted from the light emitting region, and also facilitates adhesion to the pick-up head. At the passive region, the elastomeric material facilitates adhesion to the pick-up head without interfering with light emitted from the light emitting region.Type: GrantFiled: December 13, 2017Date of Patent: June 18, 2019Assignee: Facebook Technologies, LLCInventors: Pooya Saketi, Patrick Joseph Hughes, William Padraic Henry, Joseph O'Keeffe
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Publication number: 20190181023Abstract: A light emitting diode (LED) includes an elastomeric material that facilitates adhesive attachment with a pick-up head for pick and place manufacturing operations. The LED includes an epitaxial layer defining a mesa structure and a light emitting surface. The mesa structure includes an active layer to emit light, and the emitted light is reflected at the mesa structure toward a light emitting region of the light emitting surface and transmitted at the light emitting region. An elastomeric material is on a portion of the light emitting surface, such as the light emitting region or a passive region. At the light emitting region, the elastomeric material may be shaped as a lens that collimates light transmitted from the light emitting region, and also facilitates adhesion to the pick-up head. At the passive region, the elastomeric material facilitates adhesion to the pick-up head without interfering with light emitted from the light emitting region.Type: ApplicationFiled: December 13, 2017Publication date: June 13, 2019Inventors: Pooya Saketi, Patrick Joseph Hughes, William Padraic Henry, Joseph O'Keeffe
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Patent number: 10262977Abstract: An image generator for use in a display device, the image generator comprising: a plurality of ILED array chips each comprising a plurality of ILED emitters and arranged in an array such that each of a plurality of pixels of the image generator comprises an ILED emitter from each of a plurality of adjacent ILED array chips. The total area of ILED emitter material may be less than 50% of the area of each pixel. The image generator may comprise secondary optics in optical communication with an output of the plurality of ILED emitters of an ILED array chip and configured to direct light from the ILED emitters towards an emission region of the associated pixel.Type: GrantFiled: July 31, 2015Date of Patent: April 16, 2019Assignee: Facebook Technologies, LLCInventors: William Henry, Padraig Hughes, Joseph O'Keeffe
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Publication number: 20190043917Abstract: Methods and apparatus for use in the manufacture of a display device including pixels. Each pixel includes a plurality of sub-pixels, each sub-pixel configured to provide light of a given wavelength. The method may include: performing, using a pick up tool (PUT), a first placement cycle comprising picking up first light emitting diode (LED) dies, and placing a first LED die on a substrate of the display device at a location corresponding to a sub-pixel the display device. The method further includes performing one or more subsequent placement cycles comprising picking up a second LED die, and placing the second LED die on the substrate of the display device at a second location corresponding to the sub-pixel of the display device. Multiple first and second LED dies may be picked and placed during each placement cycle to populate each pixel of the display device to provide redundancy of LED dies at each sub-pixel.Type: ApplicationFiled: October 11, 2018Publication date: February 7, 2019Inventors: Patrick Joseph Hughes, Vincent Brennan, Joseph O'Keeffe, Christopher Percival, William Padraic Henry, Tilman Zehender