Patents by Inventor Joo-woan Cho

Joo-woan Cho 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: 20240120324
    Abstract: An apparatus for fabricating a display panel, including a film fixing module configured to fix a stretched film on which a plurality of light emitting elements are arranged, a film pressurizing module configured to pressurize the stretched film, a first thickness detection module configured to detect, at each pressurization step, a modulus of elasticity and a change in thickness of the stretched film that is pressurized and stretched by the film pressurizing module, a second thickness detection module configured to detect, at each pressurization step, a change in thickness of an adhesive applied in a front direction of the stretched film, an image detection module configured to photograph the plurality of light emitting elements arranged on the stretched film for each pressurization step and to detect a change in arrangement information of the light emitting elements, and a main processor configured to database feature change information.
    Type: Application
    Filed: September 6, 2023
    Publication date: April 11, 2024
    Inventors: Tae Hee LEE, Kyung Ho KIM, Young Seok SEO, Joo Woan CHO, Byeong Hwa CHO
  • Publication number: 20240120214
    Abstract: An apparatus for fabricating a display panel, the apparatus including: a loading module configured to accommodate a large-area fabricating substrate, the loading module being configured to adjust an inclination of the large-area fabricating substrate from a rear surface of the large-area fabricating substrate and to press the large-area fabricating substrate; and an element transfer module configured to transfer a plurality of light emitting elements or an integrated circuit onto the large-area fabricating substrate and configured to bond and press a wafer on which the plurality of light emitting elements or the at least one integrated circuit is located onto the large-area fabricating substrate.
    Type: Application
    Filed: September 18, 2023
    Publication date: April 11, 2024
    Inventors: Tae Hee LEE, Kyung Ho KIM, Young Seok SEO, Joo Woan CHO, Byeong Hwa CHOI
  • Patent number: 11947744
    Abstract: The present disclosure relates to a device for providing augmented reality that can accurately recognize a writing tool such as an electronic pen to realize motion information of the writing tool over augmented reality contents, and a method for providing augmented reality using the same. According to some embodiments of the disclosure, an augmented reality device includes at least one transparent lens, a support frame supporting the at least one transparent lens, at least one display module configured to display augmented reality contents through the at least one transparent lens, a sensing module at a front of the support frame, and configured to generate image data, and a control module configured to receive motion-sensing signals of an electronic pen to detect motion information of the electronic pen, and configured to modulate the augmented reality contents so that the motion information of the electronic pen is includes therein.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: April 2, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Hee Lee, Byung Choon Yang, Joo Woan Cho, Byeong Hwa Choi, Hae Yun Choi
  • Patent number: 11943961
    Abstract: An electronic device includes a display panel, a first optical part, and a second optical part including a diffraction optical element having a diffraction grating. The display panel include a first display area for displaying a first image having a first color, a second display area disposed adjacent to the first display area to display a second image having a second color different from the first color, and a third display area disposed adjacent to the second display area to display a third image having a third color different from the first color and the second color.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Cheonmyeong Lee, Youngchan Kim, Byungchoon Yang, Jaeho You, Jiwon Lee, Joo Woan Cho
  • Publication number: 20240072216
    Abstract: A display device comprises a substrate including a plurality of light emitting areas, a partition wall portion provided on the substrate and partitioning the plurality of light emitting areas, and a plurality of light emitting parts provided on the substrate and respectively corresponding to the plurality of light emitting areas, wherein at least one of the plurality of light emitting parts includes a light emitting element provided on the substrate, and a first color conversion layer covering the light emitting element and including first inorganic particles, and the first inorganic particles include Nd2(Si, Ti, Ge)2O7.
    Type: Application
    Filed: June 6, 2023
    Publication date: February 29, 2024
    Inventors: Ji Wook MOON, Byung Choon YANG, Ki Seong SEO, Joo Woan CHO
  • Patent number: 11888086
    Abstract: A manufacturing apparatus of a display device, includes: a first unit to transfer a plurality of light emitting elements on a growth substrate to a first film; a second unit to expand the first film; a third unit to retransfer the plurality of light emitting elements to a second film; a fourth unit to determine positions of the plurality of light emitting elements on the second film; a fifth unit to bin the light emitting elements on the second film, and determine an effective light source from among the light emitting elements; a sixth unit to form a plurality of pixels on a substrate, each pixel including a first bonding electrode; a seventh unit to remove the second film after transferring one light emitting element to the first bonding electrode of one pixel; and an eighth unit to form a second electrode on the one light emitting element.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: January 30, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Dae Ho Song, So Yeon Yoon, Joo Woan Cho
  • Publication number: 20230231071
    Abstract: An apparatus for fabricating a display panel includes: a chamber; a first process driver configured to sequentially perform dispensing and coating processes on a display substrate or a light-emitting diode substrate in an internal processing space of the chamber; a second process driver configured to selectively perform at least one process selected from among moving, dipping, laminating, bonding, and laser irradiating processes on the display substrate or the light-emitting diode substrate; and a third process driver where the dipping and laminating processes on the display substrate or the light-emitting diode substrate are performed.
    Type: Application
    Filed: December 27, 2022
    Publication date: July 20, 2023
    Inventors: Hae Yun CHOI, Min Woo KIM, Dae Ho SONG, Tae Hee LEE, Joo Woan CHO
  • Publication number: 20230215903
    Abstract: A display device includes: a substrate; a first pixel electrode on the substrate; a second pixel electrode on the substrate and spaced apart from the first pixel electrode; a first light emitting element on the first pixel electrode and configured to emit first light; a first connection electrode on the second pixel electrode; a first partition wall between a side surface of the first light emitting element and a side surface of the first connection electrode; a second light emitting element on the first connection electrode and configured to emit second light; and a common electrode on an upper surface of the first light emitting element and an upper surface of the second light emitting element.
    Type: Application
    Filed: September 21, 2022
    Publication date: July 6, 2023
    Inventors: Hyung Il JEON, Byung Choon YANG, Tae Hee LEE, Joo Woan CHO, Byeong Hwa CHOI, Hae Yun CHOI
  • Publication number: 20230095842
    Abstract: A display device includes a circuit board including a first circuit portion, a second circuit portion, and a third circuit portion, a first display panel on the first circuit portion, and configured to emit a first light, a second display panel on the second circuit portion, and configured to emit a second light, a third display panel on the third circuit portion, and configured to emit a third light, and an optical combiner configured to combine the first light, the second light, and the third light to output a light.
    Type: Application
    Filed: May 3, 2022
    Publication date: March 30, 2023
    Inventors: Sung Eun BAEK, Jin Woo CHOI, Joo Woan CHO, Sung Kook PARK
  • Publication number: 20230092317
    Abstract: An augmented-reality-providing device includes a right eye lens having a first surface, a left eye lens having a first surface, a right eye filter overlapping the first surface of the right eye lens, and configured to change an illuminance of light passing through the right eye lens, a left eye filter overlapping the first surface of the left eye lens, and configured to change an illuminance of light passing through the left eye lens, a display unit configured to provide a first image to the right eye lens, and configured to provide a second image to the left eye lens, a right eye driver configured to control a transmittance of the right eye filter, and configured to control a transmittance of the first image, and a left eye driver configured to control a transmittance of the left eye filter, and configured to control a transmittance of the second image.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 23, 2023
    Inventors: Tae Hee LEE, Byung Choon YANG, Joo Woan CHO, Byeong Hwa CHOI, Hae Yun CHOI
  • Publication number: 20230077804
    Abstract: According to some embodiments of the disclosure, an AR-content-providing apparatus includes display modules configured to display AR content images on windows of a vehicle, at least one sensing module configured to generate image data obtained by capturing surroundings of the vehicle, and configured to generate distance sensing signals corresponding to distances to objects and people outside the vehicle, and a control module configured to generate AR content corresponding to driving information and surrounding information of the vehicle using the image data and the distance sensing signals, and configured to control the display modules and at least one electronic device to display the AR content.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 16, 2023
    Inventors: Hae Yun CHOI, Min Woo KIM, Byung Choon YANG, Tae Hee LEE, Joo Woan CHO
  • Publication number: 20230082737
    Abstract: The present disclosure relates to an augmented reality (AR)-content-providing device that can further increase user satisfaction and its utilization by realizing AR content of a 3D image. An AR-content-providing device comprises at least one display module configured to separately display a background image and a main image, and at least one optical member including respective display light paths of the background image and the main image so that the background image and the main image are superimposed on each other to be perceived as a three-dimensional (3D) image by a user's eyes.
    Type: Application
    Filed: August 22, 2022
    Publication date: March 16, 2023
    Inventors: Tae Hee LEE, Byung Choon YANG, Joo Woan CHO, Byeong Hwa CHOI, Hae Yun CHOI
  • Publication number: 20230067456
    Abstract: The present disclosure relates to a device for providing augmented reality that can accurately recognize a writing tool such as an electronic pen to realize motion information of the writing tool over augmented reality contents, and a method for providing augmented reality using the same. According to some embodiments of the disclosure, an augmented reality device includes at least one transparent lens, a support frame supporting the at least one transparent lens, at least one display module configured to display augmented reality contents through the at least one transparent lens, a sensing module at a front of the support frame, and configured to generate image data, and a control module configured to receive motion-sensing signals of an electronic pen to detect motion information of the electronic pen, and configured to modulate the augmented reality contents so that the motion information of the electronic pen is includes therein.
    Type: Application
    Filed: July 21, 2022
    Publication date: March 2, 2023
    Inventors: Tae Hee LEE, Byung Choon YANG, Joo Woan CHO, Byeong Hwa CHOI, Hae Yun CHOI
  • Publication number: 20230069296
    Abstract: A display device includes: a circuit substrate including a plurality of pixel circuit units and a plurality of pads on a first surface thereof, the plurality of pads being electrically connected to the pixel circuit units; a display substrate on the circuit substrate and including a plurality of light emitting elements electrically connected to the pixel circuit units; a circuit board on the circuit substrate and including a plurality of circuit board pads electrically connected to the pads; a heat dissipation substrate on a second surface of the circuit substrate, the second surface being opposite to the first surface; and a cover substrate on the heat dissipation substrate and partially overlapping the circuit substrate and the circuit board. Each of the plurality of pads is in direct contact with at least one of the plurality of circuit board pads.
    Type: Application
    Filed: August 19, 2022
    Publication date: March 2, 2023
    Inventors: Joo Woan CHO, Byung Choon YANG, Tae Hee LEE, Byeong Hwa CHOI, Hae Yun CHOI
  • Publication number: 20230065336
    Abstract: A display device is provided. The display device incudes a circuit substrate including pixel circuit units, and pads electrically connected to the pixel circuit units, a display substrate above the circuit substrate, including light-emitting elements electrically connected to the pixel circuit units, and defining via holes in a peripheral area around a cell part where the light-emitting elements are located, a circuit board above the display substrate, and including circuit board pads electrically connected to the pads, a heat dissipation substrate below the circuit substrate, and pad connecting electrodes in the via holes, and connected to the pads of the circuit substrate and to the circuit board pads of the circuit board.
    Type: Application
    Filed: August 19, 2022
    Publication date: March 2, 2023
    Inventors: Joo Woan CHO, Dae Ho SONG, Byung Choon YANG, Tae Hee LEE, Byeong Hwa CHOI, Hae Yun CHOI
  • Publication number: 20220352240
    Abstract: A display device includes a backplane line disposed on a substrate, a protective layer overlapping the backplane line, a first electrode disposed on the protective layer, a light emitting element electrically connected to the first electrode, and a reflective pattern including a reflective material and disposed between the substrate and the first electrode, the reflective pattern overlaps the backplane line in a plan view.
    Type: Application
    Filed: December 23, 2021
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyung Il JEON, Sung Kook PARK, Ki Seong SEO, So Yeon YOON, Joo Woan CHO
  • Publication number: 20220352134
    Abstract: A display device includes a base layer; a pixel circuit layer disposed on the base layer, the pixel circuit layer including a first transistor; and an insulating layer overlapping the first transistor; a first electrode disposed on the pixel circuit layer, the first electrode electrically connected to the first transistor via a contact hole of the insulating layer; a cover layer disposed on the first electrode, the cover layer overlapping at least a portion of the first electrode; a light emitting element including a first end and a second end electrically connected to the first electrode; a second electrode disposed on the light emitting element, the second electrode electrically connected to the second end of the light emitting element; and a third electrode disposed on the cover layer, the third electrode electrically contacting at least a portion of the first electrode.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyung Il JEON, Byung Choon YANG, Tae Hee LEE, Joo Woan CHO, Byeong Hwa CHOI, Jin Woo CHOI
  • Publication number: 20220352433
    Abstract: A display device comprises a first substrate including a plurality of pixel circuit units, a plurality of light emitting elements in a display area on the first substrate and electrically connected to a corresponding one of the plurality of pixel circuit units, respectively, a plurality of grooves corresponding to partially recessed top surfaces of the plurality of light emitting elements, respectively, and a plurality of light output patterns corresponding to the plurality of light emitting elements, the light output pattern being partially in a corresponding groove of the plurality of grooves, wherein the light output pattern includes a first surface in contact with the light emitting element in the groove, a second surface opposite to the first surface, and a third surface that is a side surface connecting the first surface and the second surface, and the second surface is a curved outer surface.
    Type: Application
    Filed: December 28, 2021
    Publication date: November 3, 2022
    Inventors: Joo Woan CHO, Dae Ho SONG, Byung Choon YANG, Tae Hee LEE, Hyung Il JEON
  • Publication number: 20220352419
    Abstract: A display device includes a first electrode disposed on a substrate; a light emitting element disposed on the first electrode, the light emitting element being electrically connected to the first electrode; a second electrode disposed on the light emitting element, the second electrode being electrically connected to the light emitting element; a meta structure disposed on the second electrode, the meta structure overlapping the light emitting element; and a bank pattern disposed on the substrate, the bank pattern being spaced apart from the light emitting element.
    Type: Application
    Filed: December 22, 2021
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Byung Choon YANG, Sung Kook PARK, Dae Ho SONG, Hyung Il JEON, Joo Woan CHO, Jin Woo CHOI
  • Publication number: 20220352411
    Abstract: A manufacturing apparatus of a display device, includes: a first unit to transfer a plurality of light emitting elements on a growth substrate to a first film; a second unit to expand the first film; a third unit to retransfer the plurality of light emitting elements to a second film; a fourth unit to determine positions of the plurality of light emitting elements on the second film; a fifth unit to bin the light emitting elements on the second film, and determine an effective light source from among the light emitting elements; a sixth unit to form a plurality of pixels on a substrate, each pixel including a first bonding electrode; a seventh unit to remove the second film after transferring one light emitting element to the first bonding electrode of one pixel; and an eighth unit to form a second electrode on the one light emitting element.
    Type: Application
    Filed: December 16, 2021
    Publication date: November 3, 2022
    Inventors: Jin Woo CHOI, Min Woo KIM, Sung Kook PARK, Dae Ho SONG, So Yeon YOON, Joo Woan CHO