Patents Assigned to Aledia
  • Publication number: 20240120296
    Abstract: A method for protecting optoelectronic devices against electrostatic discharges. Each optoelectronic device includes an electronic circuit including at least one electronic component and one optoelectronic circuit bonded to the electronic circuit and including at last one optoelectronic component from among a light-emitting diode or a photodiode. The method includes forming of first and second wafers, one of the first or second wafer includes a plurality of copies of the electronic circuit and the other one of the first or second wafer including a plurality of copies of the optoelectronic circuit, the bonding of the first wafer to a support, the bonding of the second wafer to the first wafer, and the separation of the electronic devices from one another, wherein the first wafer and/or the second wafer comprises at least one system for protecting optoelectronic devices against electrostatic discharges.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 11, 2024
    Applicant: Aledia
    Inventors: Xavier Hugon, Frédéric Mayer, Frédéric Mercier, lvan-Christophe Robin
  • Publication number: 20240105890
    Abstract: An optoelectronic device including an array of axial light-emitting diodes. The light-emitting diodes each include an active area configured to emit an electromagnetic radiation having an emission spectrum including a maximum at a first wavelength. The array forms a photonic crystal configured to be able to form three resonance peaks amplifying the intensity of said electromagnetic radiation at at least second, third, and fourth wavelengths.
    Type: Application
    Filed: December 2, 2021
    Publication date: March 28, 2024
    Applicant: Aledia
    Inventors: Olga Kryliouk, Mehdi Daanoune, Jérôme Napierala
  • Publication number: 20240087505
    Abstract: A display pixel including at least one light-emitting diode, a circuit for driving the light-emitting diode, and first, second, third, and fourth conductive pads. The driver circuit is powered with a first power supply voltage received between the first and second pads. The light-emitting diode is powered with a first binary signal, received between the third and second pads, and alternating between a second power supply voltage, greater than the first voltage, and a third voltage, smaller than the first voltage. The driver circuit is configured to determine a digital signal based on the values of a second binary signal on the fourth pad received during each of first pulses of the first binary signal at the third voltage and to control the light-emitting diode from the digital signal.
    Type: Application
    Filed: March 30, 2022
    Publication date: March 14, 2024
    Applicant: Aledia
    Inventor: Frédéric Mercier
  • Patent number: 11929011
    Abstract: An optoelectronic device having a set of pixels wherein each pixel has a sub-pixel capable of emitting a primary light beam, a set of pixels each pixel being adjacent to a pixel wherein each secondary pixel has at least one secondary sub-pixel capable of emitting a secondary light beam, a set of optical systems arranged so as to be able to cover an entire pixel belonging to one of the sets and at least part of the sub-pixels of at least one of the adjacent pixels belonging to the other set, the number of pixels being greater than twice the number of optical systems. At least one movement mechanism applies a relative movement between the set and the sets according to a predetermined sequence.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: March 12, 2024
    Assignee: ALEDIA
    Inventors: Ivan-Christophe Robin, Olivier Jeannin, Frédéric Mayer
  • Publication number: 20240063191
    Abstract: An optoelectronic device including an array of axial light-emitting diodes, the light-emitting diodes each including an active area configured to emit an electromagnetic radiation having an emission spectrum comprising a maximum at a first wavelength, the array forming a photonic crystal configured to form a resonance peak amplifying the intensity of said electromagnetic radiation at at least one second wavelength different from the first wavelength.
    Type: Application
    Filed: December 2, 2021
    Publication date: February 22, 2024
    Applicant: Aledia
    Inventors: Olga Kryliouk, Mehdi Daanoune, Jérôme Napierala
  • Patent number: 11901482
    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: Grant
    Filed: June 19, 2019
    Date of Patent: February 13, 2024
    Assignee: ALEDIA
    Inventors: Olivier Jeannin, Erwan Dornel, Eric Pourquier, Tiphaine Dupont
  • Publication number: 20240047505
    Abstract: An optoelectronic device including an array of axial light-emitting diodes (LED), each including an active area configured to emit electromagnetic radiation whose emission spectrum includes a maximum at a first wavelength. The device further includes a cladding for each LED, transparent to said radiation of a first material surrounding the sidewalls of the LED over at least a portion of the LED, each cladding having a thickness greater than 10 nm. The device further comprises layer, between the claddings, transparent to said radiation, made of a second material different from the first material, the second material being electrically insulating, the array forming a photonic crystal.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 8, 2024
    Applicant: Aledia
    Inventors: Mehdi Daanoune, Jérôme Napierala, Vishnuvarthan Kumaresan, Philippe Gilet, Marjorie Marra
  • Publication number: 20240047610
    Abstract: An optoelectronic device including a matrix of axial light-emitting diodes (LEDs). Each LED includes an active layer emitting electromagnetic radiation. The matrix forms a photonic crystal having at least first and second resonant peaks in a plane containing the active layers, each first and second peak amplifying the radiation intensity at a first and second wavelength respectively. Each light emitting diode includes an elongated semiconductor element, having a first portion of a first average diameter, a second portion extending the first portion and having a cross-sectional area decreasing away from the first portion, and the active layer extending the second portion and having a second average diameter strictly less than the first average diameter, the active layers being located at the first peak locations and absent at the secondary peak locations.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 8, 2024
    Applicant: Aledia
    Inventors: Mehdi Daanoune, Olga Kryliouk
  • Patent number: 11894413
    Abstract: A method for manufacturing an optoelectronic device including the steps of forming a substrate having a support face; forming a first series of first areas adapted to the formation of all or part of light-emitting diodes, forming a second series of second areas on the support face, adapted to the formation of light confinement wall elements capable of forming a light confinement wall, the second areas defining therebetween sub-pixel areas; forming, from the first areas, light-emitting diodes; forming, by the same technique as in the previous step, from the second areas, light confinement wall elements, concomitantly with all or part of the light-emitting diodes which are formed in the previous step.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: February 6, 2024
    Assignee: ALEDIA
    Inventors: Pierre Tchoulfian, Benoît Amstatt
  • Patent number: 11880906
    Abstract: An image display system includes at least one user parameter analyser configured to determine at least one parameter associated with a user, an image display screen having luminous pixels, at least one graphics processing unit configured to process at least one first main image that can be displayed on the image display screen and that is representative of a first zone of a main scene. The system further includes at least one image buffer device configured to store at least the first main image, and a graphics controller configured to control a display of at least one first secondary image on the image display screen, the first secondary image having a first portion of the first main image included in the first main image and positioned within the first main image as a function of a first user parameter.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: January 23, 2024
    Assignee: ALEDIA
    Inventors: Ivan-Christophe Robin, Frédéric Mercier, Matthieu Charbonnier
  • Patent number: 11862093
    Abstract: A device including a display screen including display pixels arranged in rows and in columns, including a first row and a first column. The device further includes a display screen control circuit configured to, in a first mode, start the display of a first image on the first row and on the first column and, in a second mode, start the display of a second image on one of the rows different from the first row and/or on one of the columns different from the first column.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: January 2, 2024
    Assignee: Aledia
    Inventors: Frédéric Mercier, Matthieu Charbonnier
  • Publication number: 20230378236
    Abstract: An optoelectronic device including a first circuit including at least one light-emitting diode emitting through a first surface of the first circuit and including first and second electrodes; a second circuit for controlling the light-emitting diode, positioned on a second surface of the first circuit opposite to the first surface, including first and second electrically-conductive pads; and an electrically-conductive layer located at the interface between the first and second circuits, the electrically-conductive layer being divided into first and second portions orthogonally to the stack of the first and second circuits, the first electrode being electrically coupled to the first conductive pad via the first portion of the conductive layer and the second electrode being electrically coupled to the second conductive pad via the second portion of the conductive layer.
    Type: Application
    Filed: September 29, 2021
    Publication date: November 23, 2023
    Applicant: Aledia
    Inventors: Ivan-Christophe Robin, Eric Pourquier, Bruno Mourey
  • Publication number: 20230361152
    Abstract: An optoelectronic device including first, second, and third three-dimensional light-emitting diodes having an axial configuration. Each light-emitting diode includes a semiconductor element and an active region resting on the semiconductor element. Each semiconductor element corresponds to a microwire, a nanowire, a nanometer- or micrometer-range conical or frustoconical element. The first, second, and third light-emitting diodes are configured to respectively emit first, second, and third radiations at first, second, and third wavelengths. The semiconductor elements of the first, second, and third light-emitting diodes respectively have first, second, and third diameters. The first diameter is smaller than the second diameter and the second diameter is smaller than the third diameter, the first wavelength being greater than the third wavelength and the second wavelength being greater than the first wavelength.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 9, 2023
    Applicant: Aledia
    Inventors: Mehdi Daanoune, Walf Chikhaoui
  • Publication number: 20230352403
    Abstract: A method for treating a region of an optoelectronic device (Pix) further including a substrate adjacent to the region to be treated. The optoelectronic device includes, in the region to be treated, programmable elements configured to be modified when they are exposed to a laser beam. The method includes the exposure of at least one of the programmable elements to the laser beam focused through the substrate.
    Type: Application
    Filed: August 19, 2021
    Publication date: November 2, 2023
    Applicant: ALEDIA
    Inventors: Olivier Jeannin, Erwan Dornel, Frédéric Mercier, Matthieu Charbonnier
  • Patent number: 11769856
    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: Grant
    Filed: June 19, 2019
    Date of Patent: September 26, 2023
    Assignee: ALEDIA
    Inventors: Olivier Jeannin, Erwan Dornel, Eric Pourquier, Tiphaine Dupont
  • Publication number: 20230299233
    Abstract: An optoelectronic device including an optoelectronic circuit including light-emitting diodes, thin-film transistors, and a stack of electrically-insulating layers, said stack being located between the light-emitting diodes, and the transistors stack further including conductive elements, between and through the insulating layers, the conductive elements connecting at least some of the transistors to the light-emitting diodes The device further includes a support having a surface, the support being flexible and/or the surface being curved and non-planar, the optoelectronic circuit being connected to the surface on the side of the thin-film transistors.
    Type: Application
    Filed: July 16, 2021
    Publication date: September 21, 2023
    Applicant: Aledia
    Inventors: Ivan-Christophe Robin, Frédéric Mayer
  • Patent number: 11764196
    Abstract: An optoelectronic device including a support, at least a first conductive layer covering the support, display pixels including first and second opposite surfaces, bonded to the first conductive layer, each pixel including an electronic circuit including the first surface and a third surface opposite to the first surface, the first surface being bonded to the first conductive layer, and an optoelectronic circuit bonded to the third surface and including at least two light-emitting diodes, at least one of the electrodes of each light-emitting diode being connected to the electronic circuit by the third surface, the optoelectronic circuit further comprising photoluminescent blocks covering the light-emitting diodes and conductive or semiconductor walls surrounding the photoluminescent blocks, and at least one second conductive layer electrically coupled to at least one of the pixels.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: September 19, 2023
    Assignee: Aledia
    Inventors: Ivan-Christophe Robin, Erwan Dornel, Frédéric Mercier
  • Patent number: 11728462
    Abstract: An optoelectronic device including a support, at least hydrophilic photoluminescent blocks including hydrophilic photoluminescent particles covering first areas of the support and hydrophobic photoluminescent blocks including hydrophobic photoluminescent particles covering second areas of the support, the hydrophilic photoluminescent blocks being in contact with a hydrophilic material in the first areas and the hydrophobic photoluminescent blocks being in contact with a hydrophobic material in the second areas.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 15, 2023
    Assignee: Aledia
    Inventors: Eleonora Garoni, Christophe Lincheneau, Sylvia Scaringella
  • Patent number: 11677049
    Abstract: An optoelectronic device, including: light-emitting sources, each light-emitting source being capable of emitting a first radiation at a first wavelength; photoluminescent blocks distributed into first photo-luminescent blocks capable of converting by optical pumping the first radiation into a second radiation at a second wavelength and second photoluminescent blocks capable of converting by optical pumping the first radiation into a third radiation at a third wavelength; and for each photoluminescent block, an optical coupler including a first photonic crystal at least partially surrounding the photoluminescent block and covering, with the photo-luminescent block, one of the light-emitting sources next to the photoluminescent block, the optical coupler being capable of modifying the propagation direction of rays of the first radiation emitted by the light-emitting source to redirect the rays towards the photoluminescent block.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: June 13, 2023
    Assignee: Aledia
    Inventor: Tiphaine Dupont
  • Patent number: 11662066
    Abstract: An optoelectronic device including light-emitting components, each light-emitting component being adapted to emit a first radiation at a first wavelength, and photoluminescent blocks, each photoluminescent block facing at least one light-emitting component and comprising a single quantum well or multiple quantum wells, photoluminescent blocks being divided into first photoluminescent blocks adapted to convert by optical pumping the first radiation into a second radiation at a second wavelength, second photoluminescent blocks adapted to convert by optical pumping the first radiation into a third radiation at a third wavelength and third photoluminescent blocks adapted to convert by optical pumping the first radiation into a fourth radiation at a fourth wavelength.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: May 30, 2023
    Assignee: Aledia
    Inventors: Wei Sin Tan, Philippe Gilet