Patents by Inventor Po-Yun Park

Po-Yun 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: 20140015820
    Abstract: A method to drive a display device includes: transmitting at least one data voltage to one or more of a plurality of data lines, scanning one or more of a plurality of gate lines to enable transmission of a gate signal in association with a first frame of a first hold section of a first still image section associated with display of a still image, and scanning one or more of the plurality of gate lines to enable transmission of the gate signal every frame of a first refresh section. The first still image section comprises the first refresh section.
    Type: Application
    Filed: November 5, 2012
    Publication date: January 16, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yong-Jun Choi, Hyun Seok Ko, Po-Yun Park, Min Joo Lee, Jung-Hwan Cho
  • Publication number: 20130215094
    Abstract: A display device includes a display panel that includes a first pixel and a second pixel, the first pixel being associated with a positive pixel voltage relative to a data voltage and being associated with a first leakage current, the second pixel being associated with a negative pixel voltage relative to the data voltage and being associated with a second leakage current. The display device further includes a gate driver for providing a first gate-off voltage having a first value to at least one of the first pixel and the second pixel, the first value being in a range determined based on an equality-enabling value, wherein a value of the first leakage current is equal to a value of the second leakage current if the first gate-off voltage having the equality-enabling value is provided to the at least one of the first pixel and the second pixel.
    Type: Application
    Filed: August 7, 2012
    Publication date: August 22, 2013
    Applicant: SAMSUNG DISPLAY GO., LTD.
    Inventors: Yong-Jun CHOI, Jae-Suk CHOI, Seung Hwan MOON, Po-Yun PARK, Min Joo LEE, Jung Hwan CHO
  • Publication number: 20130135283
    Abstract: A display device includes a display panel including a plurality of pixels, a data driver which transmits data voltages to the plurality of pixels, and a signal controller which receives an input image signal and an input control signal to control the data driver, where the signal controller calculates a ratio of a first type of pattern in a image based on the input image signal, generates a polarity signal based on the ratio of the first type of pattern, and transmits the polarity signal to the data driver.
    Type: Application
    Filed: March 22, 2012
    Publication date: May 30, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn Jin JUNG, Jae-Won JEONG, Kwan-Young OH, Po-Yun PARK, Jung Hwan CHO
  • Publication number: 20130135330
    Abstract: A display device includes a display panel having gate lines and data lines, a signal controller driving the display panel, a graphic processing unit transmitting input image data to the signal controller, a gate driver driving the gate lines, and a data driver driving the data lines. The display panel is driven at a first frequency when displaying a moving image and driven at a lower frequency when displaying a still image. The signal controller includes a frame memory storing the input image data, a calculator calculating a representative value of image data stored in the frame memory, a line memory storing the representative value, and a kick-back corrector generating auxiliary image data by correcting the representative value according to a kick-back voltage. The data driver applies an auxiliary voltage corresponding to the auxiliary image data to the data lines in a vertical blank period when displaying the still image.
    Type: Application
    Filed: May 30, 2012
    Publication date: May 30, 2013
    Inventors: Jae-Suk CHOI, Yong-Jun CHOI, Po-Yun PARK, Yun-Jae KIM, Min Joo LEE, Jung Hwan CHO
  • Publication number: 20130113811
    Abstract: A display device includes a display panel for displaying a still image and for displaying a motion picture. The display panel includes a gate line, a data line, a storage electrode line, a first switching element connected to the gate line and the date line, a storage connected to the switching element and the storage electrode line. The display device further includes a signal controller for providing controlling signals to drive the display panel. The display panel is driven at a first frequency when the motion picture is displayed. The display panel is driven at a second frequency lower than the first frequency when the still image is displayed. When the display panel is driven at the second frequency, a common voltage inputted to the storage electrode line changes.
    Type: Application
    Filed: March 16, 2012
    Publication date: May 9, 2013
    Inventors: Yong-Jun CHOI, Jae-Suk Choi, Po-Yun Park, Jung Hwan Cho, Min Joo Lee
  • Publication number: 20130106895
    Abstract: A display device capable of reducing power consumption and preventing luminance changes, and a driving method thereof are provided. The display device includes: a display panel displaying a still image and a motion picture; a signal controller controlling signals for driving the display panel; a graphic processing unit transmitting input image data to the signal controller; a light source unit irradiating the display panel with light; and a light source driver controlling signals for driving the light source unit, in which the signal controller includes a frame memory storing the input image data and controls the display panel so as to be driven at a first frequency or a second frequency, and the light source driver drives the light source unit at a first ratio when the display panel is driven at the first frequency and at a second ratio when the display panel is driven at the second frequency.
    Type: Application
    Filed: August 7, 2012
    Publication date: May 2, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Won JEONG, Kwan-Young OH, Po-Yun PARK, Jung Hwan CHO
  • Publication number: 20130106876
    Abstract: The present invention relates to a display device capable of reducing power consumption and preventing flicker, as well as a driving method thereof. An exemplary display device includes: a display panel configured for display of a still image and a motion picture; a signal controller programmed to transmit control signals for driving the display panel; and a graphic processing unit transmitting input image data to the signal controller. The signal controller includes a frame memory storing the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and alternatingly driven at the first frequency and a second frequency when the still image is displayed, the second frequency being lower than the first frequency.
    Type: Application
    Filed: March 20, 2012
    Publication date: May 2, 2013
    Inventors: Min Joo LEE, Po-Yun Park, Sang Su Han, Youn Jin Jung, Yong-Jun Choi, Jae-Suk Choi
  • Publication number: 20130076760
    Abstract: A display device includes: a display panel displaying a still image and a motion picture; a display panel which displays a still image and a motion picture; a signal controller which controls signals to drive the display panel; and a graphics processing unit which transmits input image data to the signal controller, where the signal controller includes a frame memory which stores compressed image data generated by compressing the input image data, and a mixer which mixes compression recovered image data generated by recovering the compressed image data and the input image data to generate mixed image data.
    Type: Application
    Filed: July 10, 2012
    Publication date: March 28, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Su HAN, Min Joo LEE, Po-Yun PARK, Youn Jin JUNG, Jung Hwan CHO
  • Patent number: 8400475
    Abstract: A method for processing data includes; storing image data of a p-th frame, wherein p is a natural number, determining a display mode of the image data of the p-th frame based on the number of pulses of a data enable signal corresponding to the image data of the p-th frame, and processing the image data of the p-th frame according to the determined display mode.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: March 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Po-Yun Park, Dong-Won Park
  • Publication number: 20130038621
    Abstract: The present invention provides a display device with reduced power consumption and that reduces changes in luminance, and perceptibility of flicker, and a driving method thereof. A display device according to an exemplary embodiment comprises: a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; and a graphics processing unit configured to transmit input image data to the signal controller, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and the display panel is driven at a second frequency that is lower than the first frequency when the still image is displayed.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 14, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong-Jun CHOI, Jae-Won JEONG, Jae-Suk CHOI, Seung-Ho BAEK, Joo Seok YEOM, Young-Su HAN, Myeong-Su KIM, Yun-Jae KIM, Jin-Soo KIM, Seung Hwan MOON, Po-Yun PARK, Jae Wan PARK, Kwan-Young OH, Min Joo LEE, Jung Hwan CHO
  • Publication number: 20130027379
    Abstract: A display device including a display panel, a gate driver, a data driver and a signal controller. The display panel includes gate lines and data lines, the gate driver is connected to the gate lines, the data driver is connected to the data lines and the signal controller controls the display panel, the gate driver, and the data driver. The signal controller includes a timing controller and a low voltage differential signaling (LVDS) receiving unit. The timing controller includes a frame memory. The display device further includes an analog-to-digital (AD) board including an LVDS transmission unit, wherein the LVDS transmission unit transmits a signal identifying a stopped image or a moving image to the LVDS receiving unit, and in response to the signal identifying the stopped image, the signal controller maintains the display of the same image on the display panel by using the frame memory.
    Type: Application
    Filed: January 5, 2012
    Publication date: January 31, 2013
    Inventors: Min Joo Lee, Po-Yun Park, Jung Hwan Cho
  • Patent number: 8325208
    Abstract: A method for processing image data, the image data including a plurality of sub color data corresponding to a plurality of unit pixels in a row direction, wherein each unit pixel includes N sub color data having different colors, wherein N is a natural number greater than or equal to 2, includes; storing one sub color datum of the plurality of the sub color data corresponding to the unit pixels via dividing the plurality of the sub color data one by one into an individual sub color datum corresponding to a single pixel, and reading the stored sub color data, binding up the stored sub color data two by two, and storing two sub color data bound up with each other.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: December 4, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Su Han, Jae-Hyoung Park, Po-Yun Park, Byung-Kil Jeon, Chang-Soo Lee, Bo-Ra Kim
  • Publication number: 20110298768
    Abstract: A driving apparatus of a display device, comprises a signal controller which receives an image signal and an input control signal from an outside, a signal error judgment unit which judges an error of the input control signal, and a data driver and a gate driver which receive a signal output from the signal controller, wherein the signal error judgment unit does not judge an error of the input control signal during a predetermined error judgment holding time after the error of the input control signal is generated and judges the error of the input control signal at the substantially a same time as when the error judgment holding time is terminated when the error of the input control signal is continued after the predetermined error judgment holding time.
    Type: Application
    Filed: November 30, 2010
    Publication date: December 8, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jang-Hyun YEO, Po-Yun PARK
  • Publication number: 20110148841
    Abstract: A driving circuit includes; a timing controller, a first gamma reference voltage generating circuit, and a data driver. The timing controller receives an external signal to output an image signal and a control signal for a single frame. The first gamma reference voltage generating circuit outputs first, second, third and fourth gamma reference voltages. The data driver includes a second gamma reference voltage generating circuit, a digital-to-analog converter and a selector. The second gamma reference voltage generating circuit outputs at least one fifth gamma reference voltage and at least one sixth gamma reference voltage based on the control signal.
    Type: Application
    Filed: June 15, 2010
    Publication date: June 23, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jang-Hyun YEO, YongSoon LEE, Po-Yun PARK, OckJin KIM, Seunghwan MOON, Junghwan CHO
  • Publication number: 20110069091
    Abstract: In a method of driving a light source including first through k-th light-emitting blocks (k being a natural number) which provide a display panel with light, the method includes providing identical driving signals to a plurality of light-emitting blocks of the first through k-th light-emitting blocks on which a high gradation image, which has a gradation greater than a predetermined gradation, is displayed.
    Type: Application
    Filed: January 29, 2010
    Publication date: March 24, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-Phil Kim, Dae-Gwang Jang, Sang-Su Han, Jung-Hwan Cho, Po-Yun Park, Hyun-Seok Ko, Young-Su Han
  • Patent number: 7808494
    Abstract: A display device that employs fewer IC chips and lends itself to cost-efficient manufacturing is presented. The device includes: a plurality of pixel rows including first and second pixels alternately arranged; a plurality of first and second gate lines disposed above and below the pixel rows and applying first and second gate-on voltages to the first and the second pixels, respectively; data lines intersecting the first and the second gate lines, each data line disposed between the first and the second pixels in a pair of first and second pixels and applying data voltages to the first and the second pixels; first and second gate drivers applying the first and the second gate-on voltages to the first and the second gate lines; and a data driver applying the data voltages to the data lines, wherein the second gate-on voltage is applied earlier than the first gate-on voltages by a predetermined time.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Soon Lee, Po-Yun Park, Nam-Soo Kang, Haeng-Won Park, Seung-Hwan Moon
  • Publication number: 20100177107
    Abstract: A method for processing data includes; storing image data of a p-th frame, wherein p is a natural number, determining a display mode of the image data of the p-th frame based on the number of pulses of a data enable signal corresponding to the image data of the p-th frame, and processing the image data of the p-th frame according to the determined display mode.
    Type: Application
    Filed: August 19, 2009
    Publication date: July 15, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Po-Yun PARK, Dong-Won PARK
  • Publication number: 20100149228
    Abstract: A method for processing image data, the image data including a plurality of sub color data corresponding to a plurality of unit pixels in a row direction, wherein each unit pixel includes N sub color data having different colors, wherein N is a natural number greater than or equal to 2, includes; storing one sub color datum of the plurality of the sub color data corresponding to the unit pixels via dividing the plurality of the sub color data one by one into an individual sub color datum corresponding to a single pixel, and reading the stored sub color data, binding up the stored sub color data two by two, and storing two sub color data bound up with each other.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 17, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Young-Su HAN, Jae-Hyoung PARK, Po-Yun PARK, Byung-Kil JEON, Chang-Soo LEE, Bo-Ra KIM
  • Publication number: 20100053146
    Abstract: In a timing controller and a display apparatus, the timing controller generates an internal enable signal based on an external enable signal and processes image data using the internal enable signal. The timing controller determines a width of each of the plurality of pulses of the external enable signal and subtracts a predetermined reference value from the count value to generate a control signal faster than an effective period of the external enable signal. The control signal is applied to a driver which drives a display panel on which an image is displayed. In an exemplary embodiment, the control signal serves as a vertical start signal which starts an operation of a gate driver applying a gate signal to the display panel, thus preventing or effectively eliminating a delay of the image data applied to the display panel.
    Type: Application
    Filed: February 3, 2009
    Publication date: March 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Su Han, Po-Yun Park
  • Publication number: 20100007650
    Abstract: A display device includes an image signal processing unit to output a high-speed image signal with the aid of an image interpolation unit outputting a low-speed image signal. The display device includes an image signal processing unit to receive a primitive image signal having a first frequency and to output a 4× image signal having a second frequency. The second frequency is four times the first frequency. The display device includes a display panel displaying an image corresponding to the 4× image signal. The primitive image signal includes an (n?1)-th frame (where n is a natural number) and an n-th frame. The image signal processing unit includes a first image interpolation unit and second image interpolation unit, which receive the (n?1)-th frame and the n-th frame and output a 2× image signal including at least one interpolated frame.
    Type: Application
    Filed: June 23, 2009
    Publication date: January 14, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-Jin CHOI, Sang-Soo Kim, Dong-Won Park, Po-Yun Park, Bong-Hyun You, Dong-Gyun Ra