Patents by Inventor Byung Duk Yang

Byung Duk Yang 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: 20140138637
    Abstract: A flexible display having an array of pixels or sub-pixels is provided. The display includes a flexible substrate and an array of thin film transistors (TFTs) corresponding to the array of pixels or sub-pixels on the substrate. The display also includes a first plurality of metal lines coupled to gate electrodes of the TFTs and a second plurality of metal lines coupled to source electrodes and drain electrodes of the TFTs. At least one of the first plurality of metal lines and the second plurality of metal lines comprises a non-stretchable portion in the TFT areas and a stretchable portion outside the TFT areas.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 22, 2014
    Applicant: APPLE INC.
    Inventors: Byung Duk Yang, John Z. Zhong, Shih Chang Chang, Vasudha Gupta, Young Bae Park
  • Publication number: 20140118666
    Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor layer. Column spacers may be formed on the color filter layer to maintain a desired gap between the color filter and thin-film transistor layers. Support pads may be used to support the column spacers. Different column spacers may be located at different portions of the support pads to allow the support pad size to be reduced while ensuring adequate support. Lateral movement blocking structures such as circular rings may be used to prevent column spacer lateral movement. Subspacers located over pads may be used to create friction that retards lateral movement. Lateral movement may also be retarded by receiving column spacers in trenches or other recesses formed on a thin-film transistor layer.
    Type: Application
    Filed: January 14, 2013
    Publication date: May 1, 2014
    Applicant: Apple Inc.
    Inventors: Szu-Hsien Lee, Byung Duk Yang, Chun-Yao Huang, Kyung-Wook Kim, Shih-Chang Chang, Young Cheol Yang, Young Bea Park, Ming-Chin Hung
  • Publication number: 20140091390
    Abstract: A thin-film transistor having a protection layer for a planarization layer. The protection layer prevents reduction of the planarization layer during an ashing process, thereby preventing the formation of a steeply tapered via hole through the planarization layer. In this manner, the via hole may be coated with a conductive element that may serve as a conductive path between a common electrode and the drain of the transistor.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: Apple Inc.
    Inventors: Ming-Chin Hung, Byung Duk Yang, Kyung Wook Kim, Shih Chang Chang
  • Patent number: 8610864
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a pixel electrode including a first subpixel electrode and a second subpixel electrode with a gap therebetween; a common electrode facing the pixel electrode; and a liquid crystal layer formed between the pixel electrode and the common electrode, and including a plurality of liquid crystal molecules, wherein the first and second subpixel electrodes include a plurality of minute branches, the first and second subpixel electrodes include a plurality of subregions having different length directions of the minute branches, and the width of the minute branches is wider than an interval between the neighboring minute branches.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Guk Lee, Byung-Duk Yang, Hyang-Shik Kong, Se-Hwan Yu, Sang-ki Kwak, Kyoung-Tai Han, Dong-Yoon Kim
  • Patent number: 8525963
    Abstract: A liquid crystal display capable of reducing the stray capacitance of a non-display region and a method of manufacturing the same. The liquid crystal display includes a first substrate, gate lines and data lines intersecting each other on the first substrate to define pixels, a second substrate arranged opposite to the first substrate, a common electrode formed in a display area of the second substrate in which an image is displayed, and a floating electrode formed in a non-display region of the second substrate in which no image is displayed.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: September 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung-Tai Han, Seong-Young Lee, Hyang-Shik Kong, Se-Hwan Yu, Byung-Duk Yang, Su-Hyoung Kang, Kyung-Sook Jeon
  • Patent number: 8493540
    Abstract: A display panel comprises a first substrate, a second substrate including a display area and a peripheral area surrounding the display area, a transistor layer including, formed in the display area of the substrate, at least one transistor connected to a gate line and a data line, at least one color filter formed in a plurality of pixel regions on the transistor layer, a light blocking member disposed between the color filters, at least one pixel electrode formed on the color filter, an opaque spacing part formed on the color filter corresponding to the transistor so as to maintain a cell gap between the first and second substrates. The light blocking member in some embodiments of the invention is not formed on the first and second transistors to allow for inspection of a channel in the transistor.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung-Tai Han, Jang-Soo Kim, Byung-Duk Yang
  • Patent number: 8426228
    Abstract: Contamination is blocked from material of a color filter layer provided on a thin-film transistors (TFT) supporting substrate by sealing over the color filter layer with an inorganic insulating layer. During mass production manufacture, a plasma surface cleaning step is employed after the color filter layer is deposited but before the inorganic insulating layer is deposited. A low temperature CVD process is used to deposit the inorganic insulating layer with a substantially uniform thickness conformably over the color filter layer including conformably into openings provided through the color filter layer.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: April 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Young Ryu, Hyang-Shik Kong, Byung-Duk Yang, Kyung-Sook Jeon
  • Patent number: 8400588
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate; a first signal line disposed on the first substrate, a thin film transistor connected with the first signal line, a first color filter and a second color filter disposed on the first substrate; a colored member disposed on the first color filter and the second color filter; and a pixel electrode disposed on the first color filter and the second color filter and the colored member, wherein the first color filter and the second color filter are partially overlapped with each other and the height of the colored member disposed at the overlap between the first color filter and the second color filter is greater than the height of the colored member disposed not at the overlap.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: March 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung-Duk Yang, Eun-Guk Lee, Sang-Ki Kwak, Dong-Yoon Kim, Yun-Jong Yeo
  • Publication number: 20120322182
    Abstract: A light blocking member having variable transmittance, a display panel including the same, and a manufacturing method thereof. A light blocking member having a variable transmittance according to one exemplary embodiment includes a polymerizable compound, a binder, and a thermochromic material that exhibits a black color at a temperature below a threshold temperature and becomes transparent at a temperature above the threshold temperature.
    Type: Application
    Filed: August 15, 2012
    Publication date: December 20, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Duk YANG, Vladimir URAZAEV, Sung-Wook KANG
  • Patent number: 8268412
    Abstract: A light blocking member having variable transmittance, a display panel including the same, and a manufacturing method thereof. A light blocking member having a variable transmittance according to one exemplary embodiment includes a polymerizable compound, a binder, and a thermochromic material that exhibits a black color at a temperature below a threshold temperature and becomes transparent at a temperature above the threshold temperature.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: September 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-Duk Yang, Vladimir Urazaev, Sung-Wook Kang
  • Patent number: 8253891
    Abstract: A thin film transistor array panel includes: a substrate, a plurality of gate and data lines, a thin film transistor, a light blocking member, a color filter, and a pixel electrode. The substrate includes a display area having a plurality of pixels and a non-display area. The gate lines and data lines are formed on the substrate. The thin film transistor is connected to a respective gate line and data line of the plurality of gate and data lines. The light blocking member is formed on the non-display area, the gate line, the data line, and the thin film transistor. The color filter is formed on the light blocking member. The pixel electrode is formed on the color filter. The color filter covers the entire light blocking member of the non-display area.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Hwan Yu, Hyang-Shik Kong, Jang-Soo Kim, Byung-Duk Yang, Kyoung-Tai Han
  • Publication number: 20120044434
    Abstract: An exemplary embodiment of the present invention discloses a display substrate including a pixel connected to a first gate line and a data line. The pixel includes a first sub-pixel including a first liquid crystal capacitor and a first switching element including a gate electrode connected to the first gate line, a source electrode connected to the data line, and a drain electrode connected to the first liquid crystal capacitor. The pixel also includes a second sub-pixel including a second liquid crystal capacitor and a second switching element including a gate electrode connected to the first gate line, a source electrode connected to the data line, and a drain electrode connected to the second liquid crystal capacitor. The pixel further includes a controller including a control capacitor and a control switching element, the control switching element connected between a terminal of the control capacitor and the drain electrode of the second switching element.
    Type: Application
    Filed: April 6, 2011
    Publication date: February 23, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Soo-Wan YOON, Joon-Chul GOH, Eun-Guk LEE, Young-Soo YOON, Dong-Yoon KIM, Byung-Duk YANG
  • Publication number: 20120033148
    Abstract: A liquid crystal display includes first and second gate lines, a data line crossing the first and second gate lines, a pixel electrode including first and second sub-pixel electrodes electrically disconnected from each other, a first thin film transistor connected to the first gate line, the data line, and the first sub-pixel electrode, a second thin film transistor connected to the first gate line, the data line, and the second sub-pixel electrode, and a third thin film transistor connected to the second gate line, the second sub-pixel electrode, and a charge sharing capacitor including a first and second electrode. A data voltage applied to the second sub-pixel electrode and to a first electrode swings between a negative voltage and a positive voltage with respect to a common voltage, and a voltage smaller than an average value of the negative voltage and the positive voltage is applied to a second electrode.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 9, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Duk YANG, Young-Hoon YOO, Dong-Yoon KIM, Hyang-Shik KONG, Jang-Soo KIM
  • Patent number: 8077275
    Abstract: A display substrate includes a transistor layer, a plurality of color filters, a first blocking member, a supporting member, a circuit part, a second blocking member and a protruding member. The first blocking member is disposed between different color filters. The supporting member maintains a distance between a base substrate and a substrate facing the base substrate. A circuit part is disposed in a peripheral area surrounding a display area, and the circuit part includes a metal pattern and a contact electrode in contact with the metal pattern. The second blocking member includes substantially the same material as the first blocking member and the second blocking member covers the circuit part. The protruding member includes substantially the same material as the second blocking member, and is integrally formed with the second blocking member.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: December 13, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-Duk Yang, Jang-Soo Kim, Woo-Geun Lee, Ki-Won Kim, Sang-Ki Kwak, Hyang-Shik Kong, Sang-Hun Lee
  • Patent number: 8071406
    Abstract: An array substrate includes a substrate including a display area and a peripheral area surrounding the display area, a transistor layer formed in the display area of the substrate and electrically connected to a gate line and a data line, a color filter formed in a pixel region on the transistor layer, a first light blocking member disposed between adjacent color filters, a first transparent member formed on the first light blocking member to cover the first light blocking member, a first color pattern formed in a peripheral area of the substrate and including substantially the same material as the color filter, and a second transparent member including substantially the same material as the first transparent member. The second transparent member is disposed in the peripheral area of the substrate to cover the first color pattern.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: December 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Ki Kwak, Min Kang, Se-Ah Kwon, Hyang-Shik Kong, Byung-Duk Yang, Sang-Hun Lee, Gwan-Soo Kim, Yui-Ku Lee
  • Publication number: 20110269254
    Abstract: Contamination is blocked from material of a color filter layer provided on a thin-film transistors (TFT) supporting substrate by sealing over the color filter layer with an inorganic insulating layer. During mass production manufacture, a plasma surface cleaning step is employed after the color filter layer is deposited but before the inorganic insulating layer is deposited. A low temperature CVD process is used to deposit the inorganic insulating layer with a substantially uniform thickness conformably over the color filter layer including conformably into openings provided through the color filter layer.
    Type: Application
    Filed: July 12, 2011
    Publication date: November 3, 2011
    Inventors: Hye-Young Ryu, Hyang-Shik Kong, Byung-Duk Yang, Kyung-Sook Jeon
  • Patent number: 8017949
    Abstract: Provided are a thin-film transistor (TFT) substrate which can facilitate the formation of contact holes and has improved reliability and a method of fabricating the TFT substrate. The TFT substrate includes a gate wiring formed on an insulating substrate; a data wiring defining a pixel region by intersecting the gate wiring, the data wiring including a source electrode and a drain electrode; a plurality of black matrix barrier ribs formed along the boundaries of the pixel region; a color filter formed to cover the pixel region; a pixel electrode formed on the color filter; and a plurality of contact holes formed through the color filter near the corners of the pixel region through which the pixel electrode and the drain electrode contact each other.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: September 13, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-Guk Lee, Jang-Soo Kim, Hyang-Shik Kong, Sang-Soo Kim, Shi-Yul Kim, Yoon-Ho Kang, Hoon Kang, Byung-Duk Yang, Kyoung-Tai Han, Dong-Yoon Kim
  • Publication number: 20110216276
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate; a first signal line disposed on the first substrate, a thin film transistor connected with the first signal line, a first color filter and a second color filter disposed on the first substrate; a colored member disposed on the first color filter and the second color filter; and a pixel electrode disposed on the first color filter and the second color filter and the colored member, wherein the first color filter and the second color filter are partially overlapped with each other and the height of the colored member disposed at the overlap between the first color filter and the second color filter is greater than the height of the colored member disposed not at the overlap.
    Type: Application
    Filed: October 7, 2010
    Publication date: September 8, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Duk Yang, Eun-Guk Lee, Sang-Ki Kwak, Dong-Yoon Kim, Yun-Jong Yeo
  • Patent number: 7989807
    Abstract: Contamination is blocked from material of a color filter layer provided on a thin-film transistors (TFT) supporting substrate by sealing over the color filter layer with an inorganic insulating layer. During mass production manufacture, a plasma surface cleaning step is employed after the color filter layer is deposited but before the inorganic insulating layer is deposited. A low temperature CVD process is used to deposit the inorganic insulating layer with a substantially uniform thickness conformably over the color filter layer including conformably into openings provided through the color filter layer.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hye-Young Ryu, Hyang-Shik Kong, Byung-Duk Yang, Kyung-Sook Jeon
  • Patent number: 7989814
    Abstract: A thin film transistor array panel including a substrate; a display area signal line; a display area thin film transistor; a peripheral area signal line; a black matrix disposed on the display area signal line, the display area thin film transistor, and the peripheral area signal line, the black matrix including a first and a second contact holes exposing the peripheral area signal line; a protrusion member disposed on the peripheral area signal line, the protrusion member overlapping the peripheral area signal line; a transparent connector disposed on the black matrix and within the peripheral area, wherein the transparent connector contacts the peripheral area signal line through at least one of the first and the second contact holes and includes a protrusion within at least one of the first and the second contact holes which corresponds to the protrusion member; and a pixel electrode.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Je Cho, Byung-Duk Yang, Eun-Guk Lee, Sang-Yong No, Hyang-Shik Kong, Sung-Hoon Kim, Su-Hyoung Kang, Sung-Jae Moon, Sung-Wook Kang, Yeong-Beom Lee