Patents by Inventor Olivier Jeannin

Olivier Jeannin 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).

  • Publication number: 20210366983
    Abstract: The manufacture of an optoelectronic device includes the formation of wire-like shaped light-emitting diodes and the formation of spacing walls transparent to the light radiation originating from the diodes. The lateral sidewalls of each diode are surrounded by at least one of the spacing walls. Light confinement walls directly cover the lateral sidewalls of the spacing walls by being in contact with the latter. The radiation originating from each diode and directed in the direction of the adjacent diodes is blocked by the confinement wall. The upper borders of the diodes are covered by the light confinement material so as to ensure a light extraction by the rear face of the optoelectronic device. An optoelectronic device is also described as such.
    Type: Application
    Filed: June 19, 2019
    Publication date: November 25, 2021
    Inventors: Olivier JEANNIN, Erwan DORNEL, Eric POURQUIER, Tiphaine DUPONT
  • Publication number: 20210265534
    Abstract: There is described an optoelectronic device where each light-emitting diode has a wire-like shape. Spacing walls are formed so that the lateral sidewalls of each light-emitting diode are surrounded by at least one of the spacing walls. Light confinement walls directly cover the lateral sidewalls of the spacing walls by being in contact with the latter. The spacing walls have a convex-shaped outer face. At least one of the spacing walls has, over a lower portion, a thickness that increases when getting away from the substrate. They have, over an upper portion, a thickness that decreases at the level of the upper border of the light-emitting diode when getting away from the substrate. The light confinement walls have an inner face having a concave shape matching with the convex shape and directed towards the light-emitting diode for which it confines the light radiation thereof.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 26, 2021
    Inventors: Olivier JEANNIN, Erwan DORNEL, Eric POURQUIER, Tiphaine DUPONT
  • Publication number: 20210257512
    Abstract: The manufacture of an optoelectronic device includes the formation of light-emitting diodes where each one has a wire form, the formation of spacing walls made of a first dielectric material transparent to the light radiation originating from the diodes. The lateral sidewalls of each diode are surrounded by spacing walls. Light confinement walls are made of a second material adapted to block the light radiation originating from the diodes. The light confinement walls directly cover the lateral sidewalls of the spacing walls by being in contact with the wherein. A thin layer of the second material is deposited so as to directly cover the lateral sidewalls of the spacing walls by being in contact with the wherein and cover the upper border of the light-emitting diodes. The empty spaces delimited between the spacing walls at the level of the areas between the light-emitting diodes are also filled by the thin layer.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 19, 2021
    Inventors: Olivier JEANNIN, Erwan DORNEL, Eric POURQUIER, Tiphaine DUPONT
  • Publication number: 20210144824
    Abstract: optoelectronic circuit intended to receive a variable voltage containing an alternation of rising and falling phases. The optoelectronic circuit includes light-emitting diodes and a switching device capable of allowing or of interrupting the flowing of a current through each light-emitting diode. Each light-emitting diode is covered with a photoluminescent layer. The photoluminescent layer covering at least one of the light-emitting diodes includes at least one first luminophore having a first decay constant and at least one second luminophore having a second decay constant different from the first decay constant.
    Type: Application
    Filed: May 17, 2019
    Publication date: May 13, 2021
    Applicant: Aledia
    Inventors: Olivier Jeannin, Frédéric Mercier, Pamela Rueda Fonseca
  • Patent number: 10425014
    Abstract: An AC/DC converter including: an H bridge; an inductance in series with an input of the bridge; an inductance in series with an output of the bridge; and a circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second complementary configuration, the circuit being capable, during a phase of transition between the first and second configurations, of: turning on a first switch of the second diagonal; turning off a first switch of the first diagonal when the current flowing through this switch takes a zero value; turning on the second switch of the second diagonal; and turning off the second switch of the first diagonal when the current flowing through this switch takes a zero value.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: September 24, 2019
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Léo Sterna, Othman Ladhari, Jean-Paul Ferrieux, David Frey, Pierre-Olivier Jeannin
  • Patent number: 10250158
    Abstract: An AC/DC conversion circuit, including: four bidirectional switches forming an H bridge; a capacitor connected between input nodes of the bridge; a capacitor connected between output nodes of the bridge; and a control circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second configuration where the first and second diagonals are respectively non-conductive and conductive, the control circuit being capable, during a phase of transition between the first and second configurations, of: turning off the switches of the first diagonal; and for each switch of the second diagonal, turning on the switch only when the voltage thereacross takes a zero value.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: April 2, 2019
    Assignee: Commisariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Léo Sterna, Othman Ladhari, Jean-Paul Ferrieux, David Frey, Pierre-Olivier Jeannin
  • Publication number: 20180198381
    Abstract: An AC/DC converter including: an H bridge; an inductance in series with an input of the bridge; an inductance in series with an output of the bridge; and a circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second complementary configuration, the circuit being capable, during a phase of transition between the first and second configurations, of: turning on a first switch of the second diagonal; turning off a first switch of the first diagonal when the current flowing through this switch takes a zero value; turning on the second switch of the second diagonal; and turning off the second switch of the first diagonal when the current flowing through this switch takes a zero value.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 12, 2018
    Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Léo Sterna, Othman Ladhari, Jean-Paul Ferrieux, David Frey, Pierre-Olivier Jeannin
  • Publication number: 20180198380
    Abstract: An AC/DC conversion circuit, including: four bidirectional switches forming an H bridge; a capacitor connected between input nodes of the bridge; a capacitor connected between output nodes of the bridge; and a control circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second configuration where the first and second diagonals are respectively non-conductive and conductive, the control circuit being capable, during a phase of transition between the first and second configurations, of: turning off the switches of the first diagonal; and for each switch of the second diagonal, turning on the switch only when the voltage thereacross takes a zero value.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 12, 2018
    Applicant: Commissariat à I'Énergie Atomique et aux Énergies Alternatives
    Inventors: Léo Sterna, Othman Ladhari, Jean-Paul Ferrieux, David Frey, Pierre-Olivier Jeannin