Patents by Inventor Yi-Joon Ahn

Yi-Joon Ahn 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).

  • Display device
    Patent number: 10983637
    Abstract: A display device is provided. The display device includes a display panel, a backlight unit, and a rear chassis. The display panel is configured to display an image. The backlight unit is provided on a rear surface of the display panel. The rear chassis includes a protruding region, a vibration plate, and at least one acoustic element. The protruding region is protruded in a rear direction. The at least one acoustic element is provided in the vibration plate and includes a pair of electrodes and a vibration material layer provided therebetween. The protruding region and the vibration plate are made of different materials.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Hee Lee, Yong Chang Park, Yi Joon Ahn
  • Bottom member and display device including the same
    Patent number: 10935867
    Abstract: A bottom member includes a light-absorbing element; a top coupling layer disposed on the light-absorbing element; a first buffer element disposed under the light-absorbing element, where a first opening is defined in the first buffer element; a filling layer disposed in the first opening; and a vibrating acoustic element disposed below the first buffer element, where the vibrating acoustic element overlaps with the first opening and the light-absorbing element when viewed from a top, and the vibrating acoustic element is coupled with the first buffer element via the filling layer.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: March 2, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hun Noh, Yi Joon Ahn, Myung Im Kim, Han Na Ma, Jae Woo Im
  • Piezoelectric element including mesoporous piezoelectric thin film
    Patent number: 10937944
    Abstract: A piezoelectric element includes: an upper electrode having acoustic transparency; a lower electrode; and a diaphragm disposed between the upper electrode and the lower electrode and configured of a mesoporous piezoelectric thin film. The upper electrode, the lower electrode, and the diaphragm are electrically insulated from one another.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byeong-Hee Won, Yi Joon Ahn, Won Sang Park
  • Display device and method of driving the same
    Patent number: 10911851
    Abstract: A display device includes: a display panel; and first and second sound generating device configured to generating sounds and vibrate the display panel, wherein the first sound generating device may have a higher sound pressure level than the second sound generating device in a first frequency range, and the second sound generating device may have a higher sound pressure level than the first sound generating device in a second frequency range lower than the first frequency range. A method of driving a display device in sound generating and haptic modes also is disclosed.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: February 2, 2021
    Inventors: Jung Hun Noh, Yi Joon Ahn
  • DISPLAY DEVICE
    Publication number: 20210011681
    Abstract: A display device including a display panel including a first substrate and a pixel array layer disposed on a first surface of the first substrate, a first sound generation device disposed on a second surface of the first substrate opposing the first surface, and configured to vibrate the display panel and output first sound, and a circuit board disposed on the second surface of the first substrate, in which the first sound generation device includes a bobbin fixed on one surface of the first substrate, a voice coil surrounding a side surface of the bobbin, a magnet disposed on the bobbin and spaced apart from the bobbin, and a plate disposed on the magnet and fixed to the circuit board.
    Type: Application
    Filed: April 19, 2020
    Publication date: January 14, 2021
    Inventors: Byeong Hee WON, Keun Kyu SONG, Yi Joon AHN, Sung Chan JO
  • DISPLAY DEVICE
    Publication number: 20210005682
    Abstract: A display device includes a display panel including a display area including: a stretchable display area at which the display panel is stretchable, disposed at an outer edge of the display device, and a normal display area having flexibility less than that of the stretchable display area, the normal display area disposed further from the outer edge of the display device than the stretchable display area; a cover window disposed on the display panel, including a peripheral portion and a central portion which is disposed further from the outer edge of the display device than the peripheral portion; and a vibration member disposing the normal display area having the flexibility less than that of the stretchable display area between the central portion of the cover window and the vibration member along a thickness direction of the display device.
    Type: Application
    Filed: September 18, 2020
    Publication date: January 7, 2021
    Inventors: Jae Woo IM, Jung Hun NOH, Yi Joon AHN, Sung Chan JO
  • Display device
    Patent number: 10877585
    Abstract: A display device includes a display panel, a touch sensing member which is disposed on the display panel and comprises a touch sensing area and a vibration area disposed around the touch sensing area and generating vibrations in response to a first audio signal, and a window which is disposed on the touch sensing member and outputs sound in response to the vibrations generated in the vibration area.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hun Noh, Sung Chul Kim, Keun Kyu Song, Yi Joon Ahn, Hye Yong Chu
  • FOLDABLE DISPLAY DEVICE AND SOUND PROVIDING METHOD THEREOF
    Publication number: 20200401187
    Abstract: A foldable display device includes: a display panel including a first area and a second area that are symmetrical with respect to a folding axis; a lower member below the display panel; a first sound output unit on a lower surface of the first area; a first fixing part above the lower surface of the first area and overlapping the first sound output unit in a thickness direction; and a first vibration output unit on a lower surface of the second area, wherein the first fixing part and the first vibration output unit are symmetrical with respect to the folding axis.
    Type: Application
    Filed: March 19, 2020
    Publication date: December 24, 2020
    Inventors: Jung Hun NOH, Eun Kyung YEON, Yi Joon AHN
  • DISPLAY DEVICE AND SOUND PROVIDING METHOD
    Publication number: 20200404403
    Abstract: A display device includes: a display panel; a first sound generator on a first surface of the display panel, the first sound generator being configured to vibrate the display panel to output a first sound; and a second sound generator configured to output a second sound. A third sound is a sum of the first sound and the second sound, and a sound pressure level of at least one of harmonic tones of the third sound is less than a sound pressure level of at least one of harmonic tones of the first sound.
    Type: Application
    Filed: March 5, 2020
    Publication date: December 24, 2020
    Inventors: Jae Been LEE, Ga Na KIM, Yi Joon AHN, Jung Hun NOH
  • DISPLAY DEVICE
    Publication number: 20200379709
    Abstract: A display device includes: a display panel; a first sound generator disposed on one surface of the display panel, where the first sound generator vibrates the display panel to output a first sound; and a first vibration damping member disposed between the display panel and the first sound generator, where the first vibration damping member reduces a vibration displacement of the display panel.
    Type: Application
    Filed: April 7, 2020
    Publication date: December 3, 2020
    Inventors: Tae Sung KIM, Byeong Hee WON, Young Ji KIM, Yi Joon AHN
  • Method of operating a light field 3D display device having an RGBG pixel structure, and light field 3D display device
    Patent number: 10848752
    Abstract: In a method of operating a light field three-dimensional (3D) display device having an RGBG pixel structure, multi-view image data including RGB data at multiple points of view are received, RGB rearrangement data including R sub-pixel data, G sub-pixel data, and B sub-pixel data are generated from the multi-view image data by extracting two adjacent ones of the R sub-pixel data at a same pixel row at a same point of view, by extracting two adjacent ones of the G sub-pixel data at a same pixel row at different points of view, and by extracting two adjacent ones of the B sub-pixel data at a same pixel row at a same point of view, RGBG data are generated by performing RGB-to-RGBG data conversion on the RGB rearrangement data, and a 3D image is displayed using the RGBG data.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: November 24, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Beomshik Kim, Yi Joon Ahn, Jaejoong Kwon
  • Display device
    Patent number: 10811470
    Abstract: A display device includes a display panel including a display area including: a stretchable display area at which the display panel is stretchable, disposed at an outer edge of the display device, and a normal display area having flexibility less than that of the stretchable display area, the normal display area disposed further from the outer edge of the display device than the stretchable display area; a cover window disposed on the display panel, including a peripheral portion and a central portion which is disposed further from the outer edge of the display device than the peripheral portion; and a vibration member disposing the normal display area having the flexibility less than that of the stretchable display area between the central portion of the cover window and the vibration member along a thickness direction of the display device.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Woo Im, Jung Hun Noh, Yi Joon Ahn, Sung Chan Jo
  • Stretchable display device including optical module and method of using the stretchable display device
    Patent number: 10802537
    Abstract: A display device includes: a stretchable display panel which displays an image at a display surface thereof; and an optical module which is disposed on a surface of the stretchable display panel opposite to the display surface thereof. The optical module is visible or non-visible from outside the stretchable display panel by expansion or contraction of the stretchable display panel.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: October 13, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yi Joon Ahn, Sung Chul Kim, Jung Hun Noh
  • PANEL BOTTOM MEMBER STRUCTURE AND DISPLAY DEVICE
    Publication number: 20200322707
    Abstract: A panel bottom member structure includes a panel bottom member including a light absorbing member, a top bonding layer disposed on the light absorbing member, an acoustic vibration element disposed beneath the light absorbing member and generating a vibration in response to an acoustic signal, and a buffer member disposed beneath the light absorbing member and non-overlapping the acoustic vibration element, and an element circuit board connected to the acoustic vibration element and provided with an acoustic element driving chip for generating the acoustic signal.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Jung Hun NOH, Yi Joon AHN
  • DISPLAY DEVICE AND DRIVING METHOD THEREOF
    Publication number: 20200314547
    Abstract: A display device includes a display panel; a panel bottom member disposed on the display panel; a middle frame disposed on the panel bottom member; an electronic permanent magnet attached to the panel bottom member and that switches between an activation state to generate a magnetic force and an inactivation state; and a vibrator attached to the middle frame and that vibrates, wherein the electronic permanent magnet and the vibrator overlap each other in a thickness direction of the display device.
    Type: Application
    Filed: December 11, 2019
    Publication date: October 1, 2020
    Inventors: Ga Na Kim, Yi Joon Ahn, Jung Hun Noh, Eun Kyung Yeon
  • Display device
    Patent number: 10789874
    Abstract: A display device having a display panel including a plurality of pixels connected to scan lines extending in a first direction and data lines extending in a second direction different from the first direction and a panel moving unit for reciprocating the display panel in a third direction with respect to the first direction and the second direction. Each of the plurality of pixels my include a plurality of sub-pixels arranged in a sub-sampled structure.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: September 29, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yi Joon Ahn, Jae Joong Kwon, Jong In Baek
  • DISPLAY DEVICE
    Publication number: 20200296496
    Abstract: A display device includes: a display panel including a first substrate and a light emitting element layer disposed on the first substrate; and a sound generator disposed on one surface of the first substrate, where the sound generator vibrates the display panel to output a sound. The sound generator includes: a first vibration generator which vibrates the display panel by generating a magnetic force using a first voice coil therein; and a second vibration generator including a vibration layer which contracts or expands based on a voltage applied thereto to vibrate the display panel, where the first vibration generator and the second vibration generator overlap each other in a thickness direction of the display panel.
    Type: Application
    Filed: January 9, 2020
    Publication date: September 17, 2020
    Inventors: Jae Woo IM, Byeong Hee WON, Yi Joon AHN
  • DISPLAY PANEL, BRACKET AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20200293084
    Abstract: A display device incudes: a display panel; a plurality of vibro-acoustic elements coupled to the display panel and spaced apart from each other on a lower surface of the display panel; and a bracket disposed below the display panel and including a bottom plate, where a plurality of receiving holes is defined through the bottom plate. The plurality of vibro-acoustic elements is disposed in the plurality of receiving holes, respectively, a vibration space is defined by a portion of the bottom plate defining a receiving hole of the receiving holes, which is recessed from an upper surface toward a lower surface of the bottom plate, and audio frequencies in different frequency bands, respectively, is produced from regions in which the plurality of vibro-acoustic elements are disposed.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventors: Yi Joon Ahn, Sung Chul Kim, Jung Hun Noh, Keun Kyu Song, Hye Yong Chu
  • DISPLAY DEVICE AND SOUND PROVIDING METHOD OF THE DISPLAY DEVICE
    Publication number: 20200278750
    Abstract: A display device includes a display panel, a bracket disposed on a first surface of the display panel, and a first vibrating device disposed between the first surface of the display panel and a first surface of the bracket which faces the first surface of the display panel. The first vibrating device is configured to output a first sound and provide a haptic feedback by vibrating the display panel and the bracket.
    Type: Application
    Filed: December 5, 2019
    Publication date: September 3, 2020
    Inventors: Eun Kyung Yeon, Ga Na Kim, Jung Hun Noh, Yi Joon Ahn
  • Display module
    Patent number: D908706
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: January 26, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yi Joon Ahn, Jung Hun Noh, Jae Woo Im, Keun Kyu Song