Patents Assigned to VueReal Inc.
  • Publication number: 20220223451
    Abstract: The present disclosure relates to transferring system and methods and more specifically to transferring multiple patterns or devices from a transfer medium to a substrate. The transferring apparatus comprising a first holder to hold a substrate, a second holder to hold a transfer medium, wherein the transfer medium comprises one of a: device or pattern, a first alignment system coupled to the second holder while the second holder moves in a first direction relative to one dimension of the substrate to transfer the device or the pattern; and a second alignment system coupled to the second holder while the second holder moves in a second direction relative to another dimension of the substrate to transfer the device or the pattern to the substrate, wherein the transferring apparatus is operable to transfer a plurality of devices and patterns to the substrate.
    Type: Application
    Filed: May 22, 2020
    Publication date: July 14, 2022
    Applicant: VueReal Inc.
    Inventor: Hameed TALEBI
  • Publication number: 20220223483
    Abstract: A method of aligning a first substrate and a second substrate comprises positioning the first substrate having at least a first alignment mark in close proximity to the second substrate having at least a second alignment mark, measuring an alignment value between the first and second alignment marks of both the first and second substrate; and adjusting the position of the first substrate and the second substrate based on the measured alignment value.
    Type: Application
    Filed: May 22, 2020
    Publication date: July 14, 2022
    Applicant: VueReal Inc.
    Inventor: Gholamreza CHAJI
  • Publication number: 20220216195
    Abstract: Various embodiments include methods of fabricating an array of self-aligned vertical solid state devices and integrating the devices to a system substrate. The method of fabricating a self-aligned vertical solid state device comprising: providing a semiconductor substrate, depositing a plurality of device layers on the semiconductor substrate, depositing an ohmic contact layer on an upper surface of one of the plurality of device layers, wherein the device layers comprises an active layer and a doped conductive layer, forming a patterned thick conductive layer on the ohmic contact layer; and selectively etching down the doped conductive layer that does not substantially etch the active layer.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 7, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza Chaji, Ehsanollah Fathi
  • Publication number: 20220208738
    Abstract: Structures and methods are disclosed for fabricating optoelectronic solid state array devices. In one case a backplane and array of micro devices is aligned and connected through bumps.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 30, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza CHAJI, Mae GAO, Ehsanollah FATHI, Pranav GAVIMENI
  • Publication number: 20220199605
    Abstract: What is disclosed are structures and methods for repairing emissive display systems. Various repairing techniques embodiments in accordance with the structures and methods are provided to conquer and mitigate the defected pixels and to increase the yield and reduce the cost of emissive displays systems.
    Type: Application
    Filed: April 8, 2020
    Publication date: June 23, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza CHAJI, Ehsanollah FATHI
  • Publication number: 20220189357
    Abstract: What is disclosed are structures and methods for testing and repairing emissive display systems. Systems are tested with use of temporary electrodes which allow operation of the system during testing and are removed afterward. Systems are repaired after identification of defective devices with use of redundant switching from defective devices to functional devices provided on repair contact pads.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Applicant: VueReal Inc.
    Inventor: GHOLAMREZA CHAJI
  • Publication number: 20220165717
    Abstract: The present invention discloses structures and methods for making tiled displays for optoelectronic systems.
    Type: Application
    Filed: March 20, 2020
    Publication date: May 26, 2022
    Applicant: VueReal Inc.
    Inventor: Gholamreza CHAJI
  • Publication number: 20220157231
    Abstract: This disclosure is related to compensation of micro devices based on cartridge information.
    Type: Application
    Filed: April 3, 2020
    Publication date: May 19, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza CHAJI, Ehsanollah FATHI
  • Publication number: 20220149231
    Abstract: What is disclosed structures and methods of integrating micro devices into system substrate.
    Type: Application
    Filed: February 22, 2020
    Publication date: May 12, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza CHAJI, Ehsanollah FATHI, Pranav GAVIRNENI, Bahareh SADEGHIMAKKI, Wissal Mahdi ALAYASHI
  • Publication number: 20220139857
    Abstract: A method of selectively transferring micro devices from a donor substrate to contact pads on a receiver substrate. Micro devices being attached to a donor substrate with a donor force. The donor substrate and receiver substrate are aligned and brought together so that selected micro devices meet corresponding contact pads. A receiver force is generated to hold selected micro devices to the contact pads on the receiver substrate. The donor force is weakened and the substrates are moved apart leaving selected micro devices on the receiver substrate. Several methods of generating the receiver force are disclosed, including adhesive, mechanical and electrostatic techniques.
    Type: Application
    Filed: January 6, 2022
    Publication date: May 5, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza Chaji, Ehsanollah Fathi
  • Publication number: 20220139856
    Abstract: A method of selectively transferring micro devices from a donor substrate to contact pads on a receiver substrate. Micro devices being attached to a donor substrate with a donor force. The donor substrate and receiver substrate are aligned and brought together so that selected micro devices meet corresponding contact pads. A receiver force is generated to hold selected micro devices to the contact pads on the receiver substrate. The donor force is weakened and the substrates are moved apart leaving selected micro devices on the receiver substrate. Several methods of generating the receiver force are disclosed, including adhesive, mechanical and electrostatic techniques.
    Type: Application
    Filed: January 6, 2022
    Publication date: May 5, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza Chaji, Ehsanollah Fathi
  • Publication number: 20220130783
    Abstract: A method of selectively transferring micro devices from a donor substrate to contact pads on a receiver substrate. Micro devices being attached to a donor substrate with a donor force. The donor substrate and receiver substrate are aligned and brought together so that selected micro devices meet corresponding contact pads. A receiver force is generated to hold selected micro devices to the contact pads on the receiver substrate. The donor force is weakened and the substrates are moved apart leaving selected micro devices on the receiver substrate. Several methods of generating the receiver force are disclosed, including adhesive, mechanical and electrostatic techniques.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza Chaji, Ehsanollah Fathi
  • Patent number: 11302244
    Abstract: What disclosed are structures and methods for repairing emissive display systems. Various repairing techniques embodiments in accordance with the structures and methods are provided to conquer and mitigate the defected pixels and to increase the yield and reduce the cost of emissive displays systems.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: April 12, 2022
    Assignee: VUEREAL INC.
    Inventor: Gholamreza Chaji
  • Patent number: 11302225
    Abstract: What is disclosed are structures and methods for testing and repairing emissive display systems. Systems are tested with use of temporary electrodes which allow operation of the system during testing and are removed afterward. Systems are repaired after identification of defective devices with use of redundant switching from defective devices to functional devices provided on repair contact pads.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: April 12, 2022
    Assignee: VueReal Inc.
    Inventor: Gholamreza Chaji
  • Publication number: 20220059389
    Abstract: This disclosure is related to arranging micro devices in the donor substrate by either patterning or population so that there is no interfering with unwanted pads and the non-interfering area in the donor substrate is maximized. This enables to transfer the devices to receiver substrate with fewer steps.
    Type: Application
    Filed: November 8, 2021
    Publication date: February 24, 2022
    Applicant: VueReal Inc.
    Inventor: Gholamreza Chaji
  • Publication number: 20220037573
    Abstract: As the pixel density of optoelectronic devices becomes higher, and the size of the optoelectronic devices becomes smaller, the problem of isolating the individual micro devices becomes more difficult. A method of fabricating an optoelectronic device, which includes an array of micro devices, comprises: forming a device layer structure including a monolithic active layer on a substrate; forming an array of first contacts on the device layer structure defining the array of micro devices; mounting the array of first contacts to a backplane comprising a driving circuit which controls the current flowing into the array of micro devices; removing the substrate; and forming an array of second contacts corresponding to the array of first contacts with a barrier between each second contact.
    Type: Application
    Filed: October 19, 2021
    Publication date: February 3, 2022
    Applicant: VueReal Inc.
    Inventor: Gholamreza Chaji
  • Publication number: 20220028331
    Abstract: Systems and methods to achieve desired color accuracy, power consumption, and gamma correction in an array of pixels of a micro-LED display. The method and system provides an array of pixels, wherein each pixel comprising a plurality of sub-pixels arranged in a matrix and a driving circuitry configured to provide an individual emission control signal to each sub-pixel of each pixel in the array of pixels to independently control an emission time and a duty cycle of each sub-pixel.
    Type: Application
    Filed: October 5, 2021
    Publication date: January 27, 2022
    Applicant: VueReal Inc.
    Inventor: Gholamreza Chaji
  • Publication number: 20220003815
    Abstract: What is disclosed are methods and structures of an improved probe card assembly to inspect micro devices.
    Type: Application
    Filed: February 20, 2020
    Publication date: January 6, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza CHAJI, Chang Ho PARK
  • Publication number: 20220005774
    Abstract: What is disclosed is structures and methods of integrating micro devices into system substrate. Further, the disclosure, also relates to methods and structures for enhancing the bonding process of micro-devices into a substrate. More specifically, it relates to expanding the micro device area or bonding area of micro devices.
    Type: Application
    Filed: November 18, 2019
    Publication date: January 6, 2022
    Applicant: VueReal Inc.
    Inventors: Gholamreza Chaji, Ehsanollah FATHI
  • Patent number: 11195741
    Abstract: This disclosure is related to arranging micro devices in the donor substrate by either patterning or population so that there is no interfering with unwanted pads and the non-interfering area in the donor substrate is maximized. This enables to transfer the devices to receiver substrate with fewer steps.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: December 7, 2021
    Assignee: VueReal Inc.
    Inventor: Gholamreza Chaji