Patents by Inventor Byeong-hwa Choi

Byeong-hwa Choi 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: 20160316251
    Abstract: A multimedia device includes a distance sensor which measures a viewing distance, a controller which controls an output timing of a video signal and an output timing of an audio signal based on the viewing distance, an audio device which outputs a sound in response to the audio signal, and a display device which outputs an image in response to the video signal.
    Type: Application
    Filed: October 21, 2015
    Publication date: October 27, 2016
    Inventors: Byeong-Hwa CHOI, Seung-Bae LEE
  • Patent number: 9480179
    Abstract: A display device includes a display panel, an actuator unit including a plurality of actuator members generating vibrations and disposed to face one side of the display panel, and a support unit contacting the actuator unit to receive a vibration generating from the actuator unit and including a plurality of support members disposed to respectively correspond to the plurality of actuator members and spaced apart from each other.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: October 25, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byeong-Hwa Choi, Hun-Jung Lee, Sang-Ho Kim
  • Patent number: 9424766
    Abstract: A method of displaying stereoscopic images includes synchronizing a first image frame with a first shutter in accordance with a first shutter control signal and synchronizing a second image frame with a second shutter in accordance with a second shutter control signal, adding a first modification voltage to the first and second shutter control signals for a first time period after a start point of a shutter open period, adding a second modification voltage to the first and second shutter control signals for a second time period before an end point of the shutter open period, and alternately opening the first shutter and the second shutter based on the first shutter control signal and the second shutter control signal.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: August 23, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Byeong-Hwa Choi
  • Patent number: 9411075
    Abstract: A display apparatus including a display unit including at least one pixel area and a non-pixel area, the non-pixel area dividing the at least one pixel area; and a metamaterial structure that controls a path of light emitted from the at least one pixel area.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: August 9, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byeong-Hwa Choi, Seung-Bae Lee, Eun-Jung Lee, Hak-Sun Kim
  • Publication number: 20160216739
    Abstract: A flexible display device may include a display module unit configured to project an image, a frame, and a connecting unit. The frame supports the display module unit. The connecting unit is coupled to the display module unit and the frame, and is adjustable so as to allow an amount of curvature of the display module unit to be adjusted.
    Type: Application
    Filed: January 27, 2016
    Publication date: July 28, 2016
    Inventors: Byeong Hwa CHOI, Seung Bae LEE
  • Patent number: 9298221
    Abstract: A method of displaying folding information includes evaluating a folded state of a foldable display apparatus, measuring a folding accumulation time that indicates an amount of time that the folded state is maintained, determining the folding information based on the folding accumulation time, and displaying the folding information on a display panel of the foldable display apparatus.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: March 29, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Wook Choi, Byeong-Hwa Choi, Sung-Su Hong
  • Patent number: 9245467
    Abstract: A stereoscopic display device includes a display unit. The display unit includes a plurality of pixels. A scan driving unit sequentially applies scan signals through a plurality of scan lines to the plurality of pixels. A data driving unit applies gray voltages through a plurality of data lines to the plurality of pixels in response to the scan signals. A signal controlling unit transfers a data control signal and an image data signal to the data driving unit. The signal controlling unit classifies, in accordance with a disparity of objects respectively included in a left-eye image and a right-eye image, an object depth in which an object is recognized by a user. The signal controlling unit resets a luminance of at least one of the left-eye image or the right-eye image corresponding to the object depth.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: January 26, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byeong-Hwa Choi, Sueng-Bae Lee
  • Publication number: 20150301672
    Abstract: A flexible display apparatus includes: a flexible display panel which operates in a plane mode or a curved mode; a sensor unit which measures a direction, a location or a degree of a curvature of the flexible display panel; and a brightness control unit which controls brightness of an area of the flexible display panel based on the direction, the location or the degree of the curvature of the flexible display panel.
    Type: Application
    Filed: September 24, 2014
    Publication date: October 22, 2015
    Inventors: Sang-Ho Kim, Byeong-Hwa Choi, Jae-Woo Bae, Young-Sang Ha
  • Publication number: 20150185787
    Abstract: A method of displaying folding information includes evaluating a folded state of a foldable display apparatus, measuring a folding accumulation time that indicates an amount of time that the folded state is maintained, determining the folding information based on the folding accumulation time, and displaying the folding information on a display panel of the foldable display apparatus.
    Type: Application
    Filed: April 28, 2014
    Publication date: July 2, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: DONG-WOOK CHOI, BYEONG-HWA CHOI, SUNG-SU HONG
  • Patent number: 9035974
    Abstract: In a method and a device for controlling luminance of a display unit to save power of a display device including the display unit for displaying on a screen, the method includes: calculating a second luminance to which the luminance of the display unit is to be changed considering a first luminance that is a current luminance of the display unit and a constant K determined according to Weber's law; and changing the luminance of the display unit to the second luminance.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 19, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byeong-Hwa Choi, Seung-Bae Lee
  • Publication number: 20150129851
    Abstract: An organic light emitting display device includes a first substrate, a thin film transistor disposed on the first substrate, a first electrode electrically coupled to the thin film transistor, a pixel defining layer disposed on the first substrate and the first electrode to define unit pixels, a plurality of organic light emitting structure disposed on the first electrode, where in the organic light emitting structure includes a first organic light emitting structure, a second organic light emitting structure and a third light emitting structure, a second electrode which covers the first through third organic light emitting structures and the pixel defining layer; a metamaterial layer disposed on the second electrode corresponding to the organic light emitting structures, an encapsulation member which covers the second electrode and the metamaterial layer, and a second substrate disposed on the encapsulation member opposite to the first substrate.
    Type: Application
    Filed: October 21, 2014
    Publication date: May 14, 2015
    Inventors: Eun-Jung LEE, Seung-Bae LEE, Byeong-Hwa CHOI, Hak-Sun KIM
  • Publication number: 20150116841
    Abstract: An exemplary embodiment of the present inventive concept discloses an electronic device, including a display, a body to which the display is attached, wherein the body is coated with a meta-material, the meta-material configured to divert an electromagnetic wave based on refraction characteristics, and a display-cover that blocks the display from outside when the display is turned off, wherein the display-cover is coated with the meta-material.
    Type: Application
    Filed: August 22, 2014
    Publication date: April 30, 2015
    Inventors: Byeong-Hwa CHOI, Seung-Bae LEE, Eun-Jung LEE, Hak-Sun KIM
  • Patent number: 9013431
    Abstract: A display device includes a display panel including a plurality of first sensing lines that extend in a first direction, and a plurality of second sensing lines that extend in a second direction, a first position selector and a second position selector at an edge of the display panel, and spaced apart from each other in the first direction, and a third position selector and a fourth position selector at or above the display panel, and spaced apart from each other in the second direction, wherein an activated region of the display panel corresponds to respective positions of the first position selector, the second position selector, the third position selector, and the fourth position selector
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byeong-Hwa Choi, Seung-Bae Lee
  • Publication number: 20150085384
    Abstract: A display apparatus including a display unit including at least one pixel area and a non-pixel area, the non-pixel area dividing the at least one pixel area; and a metamaterial structure that controls a path of light emitted from the at least one pixel area.
    Type: Application
    Filed: May 5, 2014
    Publication date: March 26, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byeong-Hwa CHOI, Seung-Bae LEE, Eun-Jung LEE, Hak-Sun KIM
  • Publication number: 20140354702
    Abstract: A stereoscopic display device includes a display unit. The display unit includes a plurality of pixels. A scan driving unit sequentially applies scan signals through a plurality of scan lines to the plurality of pixels. A data driving unit applies gray voltages through a plurality of data lines to the plurality of pixels in response to the scan signals. A signal controlling unit transfers a data control signal and an image data signal to the data driving unit. The signal controlling unit classifies, in accordance with a disparity of objects respectively included in a left-eye image and a right-eye image, an object depth in which an object is recognized by a user. The signal controlling unit resets a luminance of at least one of the left-eye image or the right-eye image corresponding to the object depth.
    Type: Application
    Filed: October 2, 2013
    Publication date: December 4, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: BYEONG-HWA CHOI, Seuong-Bae Lee
  • Publication number: 20140293024
    Abstract: A foldable display and a method and apparatus for controlling the foldable display are disclosed. In one aspect, the apparatus includes a display device including a first display panel and a second display panel disposed on the first display panel, wherein the first and second display panels are folded along a first axis. The apparatus also includes a recognizer for recognizing folding of at least one of the first and second display panels and a display controller for controlling a display operation of the display device according to the recognized folding.
    Type: Application
    Filed: August 27, 2013
    Publication date: October 2, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Byeong-Hwa Choi, Seung-Bae Lee
  • Publication number: 20140292672
    Abstract: A display device includes a display panel including a plurality of first sensing lines that extend in a first direction, and a plurality of second sensing lines that extend in a second direction, a first position selector and a second position selector at an edge of the display panel, and spaced apart from each other in the first direction, and a third position selector and a fourth position selector at or above the display panel, and spaced apart from each other in the second direction, wherein an activated region of the display panel corresponds to respective positions of the first position selector, the second position selector, the third position selector, and the fourth position selector
    Type: Application
    Filed: July 15, 2013
    Publication date: October 2, 2014
    Inventors: Byeong-Hwa Choi, Seung-Bae Lee
  • Publication number: 20140285983
    Abstract: A display device includes a display panel, an actuator unit including a plurality of actuator members generating vibrations and disposed to face one side of the display panel, and a support unit contacting the actuator unit to receive a vibration generating from the actuator unit and including a plurality of support members disposed to respectively correspond to the plurality of actuator members and spaced apart from each other.
    Type: Application
    Filed: November 6, 2013
    Publication date: September 25, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byeong-Hwa CHOI, Hun-Jung LEE, Sang-Ho KIM
  • Publication number: 20140139557
    Abstract: In a method and a device for controlling luminance of a display unit to save power of a display device including the display unit for displaying on a screen, the method includes: calculating a second luminance to which the luminance of the display unit is to be changed considering a first luminance that is a current luminance of the display unit and a constant K determined according to Weber's law; and changing the luminance of the display unit to the second luminance.
    Type: Application
    Filed: March 13, 2013
    Publication date: May 22, 2014
    Inventors: Byeong-Hwa Choi, Seung-Bae Lee
  • Publication number: 20130002655
    Abstract: A method of displaying stereoscopic images includes synchronizing a first image frame with a first shutter in accordance with a first shutter control signal and synchronizing a second image frame with a second shutter in accordance with a second shutter control signal, adding a first modification voltage to the first and second shutter control signals for a first time period after a start point of a shutter open period, adding a second modification voltage to the first and second shutter control signals for a second time period before an end point of the shutter open period, and alternately opening the first shutter and the second shutter based on the first shutter control signal and the second shutter control signal.
    Type: Application
    Filed: April 20, 2012
    Publication date: January 3, 2013
    Inventor: Byeong-Hwa Choi