Patents by Inventor Kyong-Tae Park

Kyong-Tae Park 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: 20160073030
    Abstract: A photographing apparatus and a photographing method are provided. The photographing apparatus includes: a viewfinder configured to display a live image; a display configured to display the live image and receive a touch input; and a controller configured to activate at least one selected from the viewfinder and the display according to whether a user approaches the photographing apparatus and activate a set area of a display area of the display for performing an autofocusing function in response to the viewfinder being activated. The set area is an area where a touch for setting an autofocusing area of the live image displayed through the viewfinder is input. Therefore, the user intuitively performs autofocusing on the live image with observing the live image displayed through the viewfinder.
    Type: Application
    Filed: August 12, 2015
    Publication date: March 10, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kyong-tae PARK
  • Publication number: 20160035279
    Abstract: A display panel and organic light-emitting diode (OLED) display including the same are disclosed. In one aspect, the display panel includes an active pixel including a driving circuit configured to generate a driving current based on a data signal and an emission circuit configured to emit light based on the driving current. The display panel also includes a repair pixel including a repair driving circuit configured to provide a repair driving current to the emission circuit instead of the driving current of the driving circuit when the driving circuit is disconnected from the emission circuit. The repair pixel further includes an aging switch configured to apply an aging voltage to the repair driving circuit during an aging operation and electrically disconnect the repair driving circuit from a power supply after the aging operation is performed.
    Type: Application
    Filed: January 12, 2015
    Publication date: February 4, 2016
    Inventors: Kyong-Tae PARK, Mi-Jin YOON, Yu-Hyun CHO
  • Publication number: 20160035283
    Abstract: A display device includes dummy pixels adjacent to active pixels, and a controller to control pixel driving circuits in the active pixels and dummy driving circuits in the dummy pixels. The dummy driving circuit includes a pumping capacitor, and first and second transistors to connect an initialization voltage terminal to a dummy anode terminal. The first transistor includes a control electrode connected to a first input signal terminal, a source terminal connected to the dummy anode terminal, a drain terminal connected to a source terminal via a first node. The pumping capacitor connects the first node and a first power source voltage terminal. The second transistor includes a control electrode connected to a second input signal terminal, a source terminal connected to the drain terminal of the first transistor, and a drain terminal connected to a second power source voltage terminal.
    Type: Application
    Filed: December 16, 2014
    Publication date: February 4, 2016
    Inventors: Kyong Tae PARK, Mi Jin YOON, Yu Hyun CHO
  • Publication number: 20160037152
    Abstract: An image photographing apparatus is provided. The image photographing apparatus includes a first photographing unit configured to photograph an image by using a phase difference image sensor, a second photographing unit configured to be spaced on a side of the first photographing unit, a controller configured to generate a first depth map by using a first image photographed by the first photographing unit and generate a second depth map by using a second image photographed by the second photographing unit, and an image processor configured to generate a three-dimensional (3D) image by using the first depth map and the second depth map.
    Type: Application
    Filed: June 10, 2015
    Publication date: February 4, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-gon KIM, Kyong-tae PARK, Chong-Sam CHUNG
  • Patent number: 9231040
    Abstract: An organic light emitting diode (OLED) display according to the present invention includes: a pixel portion wherein an organic light emitting diode including a pixel electrode, an organic emission layer, and a common electrode is formed, and a periphery portion surrounding the pixel portion and having a plurality of common voltage lines applying a common voltage to the common electrode. The common voltage lines include a plurality of common voltage pads to which the common voltage is applied from an external source, a common voltage contact portion overlapping an end of the common electrode and contacting the common electrode, a common voltage connection portion connecting a common voltage pad and the common voltage contact portion. A width of the common voltage contact portion is larger than that of the common voltage connection portion.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: January 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Tae Park, Keum-Nam Kim, Sung-Jae Moon
  • Patent number: 9214509
    Abstract: A display device includes a pixel unit including a plurality of pixels coupled to a plurality of control lines and to a plurality of power lines to commonly receive same control signals and power source, a plurality of inlet pads positioned outside the pixel unit, the plurality of inlet pads being configured to apply the power source to the plurality of power lines, a pad bar electrically coupling the plurality of inlet pads, and a plurality of coupling patterns contacting end portions of the plurality of power lines and corresponding end portions of the pad bar, the plurality of coupling patterns electrically connecting the plurality of power lines and the pad bar, and one or more of the end portions of the pad bar and the ends portions of the plurality of power lines have different contact areas with the plurality of coupling patterns.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: December 15, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong-Tae Park, Dong-Gyu Kim, Sung-Jae Moon
  • Publication number: 20150348466
    Abstract: A pixel repair circuit and organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, the pixel repair circuit includes an emission controller configured to control the emission current and a repair line initialization unit configured to initialize the repair line. The pixel repair circuit further includes a current mirror unit configured to provide a mirror current of the emission current to the repair line initialization unit, wherein the current mirror unit is connected between a power supply voltage and the emission controller. The pixel repair circuit also includes a first emission switch configured to control an electrical connection between the emission controller and the current mirror unit based on an emission control signal and a second emission switch configured to control an electrical connection between the emission controller and the repair line based on the emission control signal.
    Type: Application
    Filed: December 5, 2014
    Publication date: December 3, 2015
    Inventors: Kyong-Tae PARK, Tae-Gon KIM, Dong-Yoon SO, Sung-Ho CHO
  • Publication number: 20150312450
    Abstract: An image pickup apparatus capable of performing a zooming function without increasing a thickness of the image pickup apparatus, and obtaining depth information at the same time by using lens elements having different diameters, is provided. The image pickup apparatus includes lens elements, and image pickup regions respectively disposed in correspondence to the lens elements. At least two of the lens elements have different diameters. At least two of the image pickup regions have different sizes. A smallest image pickup region among the image pickup regions having a smallest size among sizes of the image pickup regions is disposed with respect to a lens element among the lens elements having a largest diameter. A largest image pickup region among the image pickup regions having a largest size among sizes of the image pickup regions is disposed with respect to a lens element among the lens elements having a smallest diameter.
    Type: Application
    Filed: April 23, 2015
    Publication date: October 29, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kyong-tae PARK
  • Patent number: 9159264
    Abstract: An organic light-emitting display device and a method of driving the display device are disclosed. A pixel circuit used in the organic light-emitting display device includes a first switching transistor, a second switching transistor and a driving transistor. The first switching transistor switches a data voltage in response to a first control signal. The second switching transistor switches a compensation voltage in response to a second control signal. The driving transistor provides an electric current to an organic light-emitting device in response to the data voltage and the compensation voltage.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong-Tae Park, Baek-Woon Lee, Alexander Arkhipov
  • Publication number: 20150279278
    Abstract: A display device includes: a first sub-pixel and a second sub-pixel, wherein the first sub-pixel includes: a first light emitting diode coupled between a first node and a second node; a first transistor configured to turn off the first light emitting diode by lowering a voltage of the first node below a voltage of the second node by providing a first initialization voltage to the first node; and a second transistor configured to turn on the first light emitting diode by increasing the voltage of the first node above the voltage of the second node by providing a first driving current to the first node, wherein the second sub-pixel includes a second light emitting diode, wherein a capacitance of the first light emitting diode is higher than a capacitance of the second light emitting diode.
    Type: Application
    Filed: September 16, 2014
    Publication date: October 1, 2015
    Inventors: Kyong Tae Park, Pil Soo Ahn
  • Publication number: 20150264335
    Abstract: Provided are an image pickup apparatus and method capable of improving a resolution of an image having depth information. The image pickup apparatus may include: a main lens configured to refract incident light; an image sensor comprising a plurality of two-dimensional (2D)-arranged pixels configured to output an image signal according to the incident light; a micro lens array between the main lens and the image sensor and comprising a plurality of 2D-arranged micro lenses; and a controller configured to receive the image signal from the image sensor and to generate an image according to the received image signal, wherein the controller is configured to obtain a plurality of images having different depths of field by changing a distance between the main lens and the image sensor and to obtain at least one depth map from the at least one of the obtained plurality of images.
    Type: Application
    Filed: February 19, 2015
    Publication date: September 17, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kyong-tae PARK
  • Patent number: 9129556
    Abstract: A display device includes a scan driver, a data driver, a power supply unit configured to supply power through a plurality of power supply inlet portions, a pixel unit including a plurality of pixels that receives scan signals, emission control signals, data signals and the power so as to display an image, the pixel unit being partitioned into a plurality of partition areas to correspond to the respective power supply inlet portions, and a current limit circuit configured to calculate values of current for each of the partition areas based on gray scale data of an image signal, and configured to correct the gray scale data so as to limit luminance of the pixel unit when at least one of the values of current for each partition area is a reference value or more.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: September 8, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Kyong-Tae Park
  • Patent number: 9041633
    Abstract: An organic light emitting display device includes a display unit having pixels located at crossing regions of scan, control, data and sensing lines. Scan, control line, and data drivers respectively supply scan, control, and data signals to the scan, control, and data lines. A switching unit selectively couples the data lines to output lines of the data driver, a reference voltage source, or a negative bias voltage source. A sensing unit senses degradation information of an organic light emitting diode in the pixels and threshold voltage of a driving transistor in the pixels through the sensing lines. A control block stores the sensed degradation information and threshold voltage information. A timing controller is configured to generate a second data by converting an externally inputted first data using the degradation information and the threshold voltage information, and supply the second data to the data driver.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Tae Park, Byoung-Seong Jeong, Mu-Gyeom Kim, Chang-Mo Park
  • Patent number: 9013381
    Abstract: Disclosed is an organic light emitting device which includes a first pixel displaying red, a second pixel displaying green, a third pixel displaying blue, and a fourth pixel displaying blue and forming a dot along with the first pixel, the second pixel, and the third pixel. The first to fourth pixels include a switching element and an organic light emitting element connected to the switching element, and the sum of the areas of the first to fourth pixels is substantially the same as the area of the dot.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyo-Seok Kim, Kyong-Tae Park
  • Patent number: 8994264
    Abstract: An organic light emitting display device and a method of manufacturing the same are provided. The organic light emitting display device includes: a substrate including a display portion displaying an image as a plurality of sub-pixels that are arranged, and a non-display portion extending at an edge of the display portion; and a sealant formed along a periphery of the display portion, wherein an organic film having an emissive layer is formed on the plurality of sub-pixels, and an emissive layer storage unit storing an emissive layer coated on the non-display portion is formed between the display portion and the sealant. By forming the emissive layer storage unit by removing at least a part of a pixel defining layer on an edge of the substrate, a raw material of the emissive layer coated on the non-display portion on the substrate is easily processed via the emissive layer storage unit.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Hwan Cho, Kyong-Tae Park, Sang-Jo Lee
  • Patent number: 8946733
    Abstract: An organic light-emitting display apparatus that improves image quality characteristics, the organic light-emitting display apparatus including: a substrate; a first electrode formed on the substrate; a pixel-defining layer (PDL) formed on the first electrode to expose a set or predetermined region of the first electrode; an intermediate layer formed in the exposed predetermined region of the first electrode and including an organic emission layer; and a second electrode having a light-scattering face facing the substrate or facing oppositely away from the substrate, the second electrode being disposed on the intermediate layer.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: February 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Valeriy Prushinskiy, Len Kaplan, Se-Ho Cheong, Won-Sik Hyun, Min-Soo Kim, Kyong-Tae Park, Byoung-Seong Jeong, Jang-Seok Ma
  • Publication number: 20140353632
    Abstract: A display device includes a pixel unit including a plurality of pixels coupled to a plurality of control lines and to a plurality of power lines to commonly receive same control signals and power source, a plurality of inlet pads positioned outside the pixel unit, the plurality of inlet pads being configured to apply the power source to the plurality of power lines, a pad bar electrically coupling the plurality of inlet pads, and a plurality of coupling patterns contacting end portions of the plurality of power lines and corresponding end portions of the pad bar, the plurality of coupling patterns electrically connecting the plurality of power lines and the pad bar, and one or more of the end portions of the pad bar and the ends portions of the plurality of power lines have different contact areas with the plurality of coupling patterns.
    Type: Application
    Filed: May 15, 2014
    Publication date: December 4, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong-Tae PARK, Dong-Gyu KIM, Sung-Jae MOON
  • Publication number: 20140292185
    Abstract: A display device and a method of manufacturing the display device. The display device includes: a first substrate including a display region at which pixels are located; a second substrate on the first substrate while covering the display region; a sealant between the first substrate and the second substrate and surrounding the display region; and at least one protruding pattern located at an outer side of the sealant with respect to a center of the first substrate or the second substrate, on at least one of the first substrate or the second substrate.
    Type: Application
    Filed: September 3, 2013
    Publication date: October 2, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sung-Jae Moon, Kyong-Tae Park, Deok-Young Choi
  • Publication number: 20140292623
    Abstract: An organic light emitting display device employing organic light emitting diodes (OLEDs) is disclosed. One aspect includes a plurality of pixels positioned at intersection portions of scan lines and data lines, each having an organic light emitting diode and a pixel circuit driving the organic light emitting diode; a scan driver supplying a scan signal to the scan lines and supplying an emission control signal to an emission control line coupled to the pixels; and a data driver supplying a data signal to the data lines. In such organic light emitting display, the pixel circuit within each pixel includes three or more transistors and one or more capacitors, and the transistors included in a pixel circuit of some of the pixels is formed to be in a state in which the transistor is isolated from the other circuit devices in the pixel circuit or in a state in which the electrodes of the transistor are short-circuited.
    Type: Application
    Filed: August 5, 2013
    Publication date: October 2, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sung-Jae Moon, Kyong-Tae Park
  • Publication number: 20140292821
    Abstract: A display device includes a scan driver, a data driver, a power supply unit configured to supply power through a plurality of power supply inlet portions, a pixel unit including a plurality of pixels that receives scan signals, emission control signals, data signals and the power so as to display an image, the pixel unit being partitioned into a plurality of partition areas to correspond to the respective power supply inlet portions, and a current limit circuit configured to calculate values of current for each of the partition areas based on gray scale data of an image signal, and configured to correct the gray scale data so as to limit luminance of the pixel unit when at least one of the values of current for each partition area is a reference value or more.
    Type: Application
    Filed: July 19, 2013
    Publication date: October 2, 2014
    Inventor: Kyong-Tae PARK