Patents by Inventor Yong-hwan Shin

Yong-hwan Shin 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: 20120147282
    Abstract: Provided is a liquid crystal display to provide improved transmittance and visibility includes a first substrate; a first switching element and a second switching element formed on the first substrate configured to be switched by the same signal; a first subpixel electrode connected to the first switching element; a second subpixel electrode connected to the second switching element; a third switching element connected to the second switching element; a third subpixel electrode connected to the third switching element; a second substrate; a common electrode formed on the second substrate; and a liquid crystal layer formed between the first substrate and the second substrate.
    Type: Application
    Filed: June 28, 2011
    Publication date: June 14, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung Ju SHIN, Hak Sun CHANG, Yong Hwan SHIN
  • Publication number: 20120007894
    Abstract: A method of driving a display panel includes generating a high pixel gamma voltage and a low pixel gamma voltage. At least one of the high pixel gamma voltage and the low pixel gamma voltage includes a positive gamma voltage and a negative gamma voltage having different values. The positive gamma voltage is a difference between a first gamma voltage higher than a common voltage and the common voltage. The negative gamma voltage is a difference between the common voltage and a second gamma voltage lower than the common voltage. A high pixel data voltage is generated based on the high pixel gamma voltage and the high pixel data voltage output to a high pixel. A low pixel data voltage is generated based on the low pixel gamma voltage and the low pixel data voltage is output to a low pixel.
    Type: Application
    Filed: December 16, 2010
    Publication date: January 12, 2012
    Inventors: Yong-Hwan Shin, Mia-Sik Jung
  • Patent number: 8068266
    Abstract: A display substrate includes a base substrate, a reflection-polarization member, a first electrode, an insulation layer and a pixel wall. The reflection-polarization member is disposed on the base substrate to reflect and polarize incident light. The first electrode is disposed in a unit pixel area of the reflection-polarization member. The insulation layer is disposed on the first electrode. The pixel wall is disposed on the insulation layer and defines the unit pixel area. Therefore, the entire area of a unit pixel may be used as a reflective area or a transmissive area, and thus an aperture ratio may be improved in a reflection mode or a transmission mode.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: November 29, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyang-Yul Kim, Hee-Seop Kim, Joo-Nyung Jang, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin, Yong-Hwan Shin
  • Publication number: 20110181952
    Abstract: A display substrate includes a base substrate, a reflection-polarization member, a first electrode, an insulation layer and a pixel wall. The reflection-polarization member is disposed on the base substrate to reflect and polarize incident light. The first electrode is disposed in a unit pixel area of the reflection-polarization member. The insulation layer is disposed on the first electrode. The pixel wall is disposed on the insulation layer and defines the unit pixel area. Therefore, the entire area of a unit pixel may be used as a reflective area or a transmissive area, and thus an aperture ratio may be improved in a reflection mode or a transmission mode.
    Type: Application
    Filed: April 8, 2011
    Publication date: July 28, 2011
    Inventors: Hyang-Yul KIM, Hee-Seop KIM, Joo-Nyung JANG, Hwa-Sung WOO, Cheol SHIN, Dong-Chul SHIN, Yong-Hwan SHIN
  • Patent number: 7929091
    Abstract: In a method of manufacturing a display panel, a first alignment member is formed on a first substrate. Liquid crystal is sealed between the first substrate and a second substrate opposite to the first substrate. Then, an electric field is applied to the liquid crystal to align the liquid crystal. Ultraviolet light is irradiated onto the first alignment member to form a second alignment member while applying the electric field to the liquid crystal.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: April 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Hwan Shin, Jun-Woo Lee
  • Publication number: 20110032464
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a first substrate and a second substrate facing each other and a liquid crystal layer formed between the first substrate and the second substrate and including liquid crystal molecules. The liquid crystal layer includes a first sub-region and a second sub-region having different alignment azimuth angles of the liquid crystal molecules, the liquid crystal molecules of the first sub-region are aligned to have a first azimuth angle and a polar angle of less than 90° near the first substrate and are vertically aligned near the second substrate, and the liquid crystal molecules of the second sub-region are aligned to have a second azimuth angle and a polar angle of less than 90° near the second substrate and are vertically aligned near the first substrate.
    Type: Application
    Filed: July 28, 2010
    Publication date: February 10, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Gyo-Jic SHIN, Hyun-ku Ahn, Baek-Kyun Jeon, Hoi-Lim Kim, Jeong-Hye Choi, Yong-Hwan Shin, Min-Sik Jung
  • Patent number: 7781243
    Abstract: A method of manufacturing a display substrate includes forming a plurality of thin film transistors (TFTs) on a first substrate in a matrix, forming a plurality of pixel electrodes connected to the TFTs, forming a connecting pad to receive a common voltage, forming an organic pattern on the connecting pad, depositing an inorganic alignment layer covering the organic pattern on the first substrate, and removing the organic pattern and the inorganic alignment layer remaining on the organic pattern.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: August 24, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Hwan Shin, Baek-Kyun Jeon, Soon-Joon Rho
  • Publication number: 20100157410
    Abstract: A display substrate includes a base substrate, a reflection-polarization member, a first electrode, an insulation layer and a pixel wall. The reflection-polarization member is disposed on the base substrate to reflect and polarize incident light. The first electrode is disposed in a unit pixel area of the reflection-polarization member. The insulation layer is disposed on the first electrode. The pixel wall is disposed on the insulation layer and defines the unit pixel area. Therefore, the entire area of a unit pixel may be used as a reflective area or a transmissive area, and thus an aperture ratio may be improved in a reflection mode or a transmission mode.
    Type: Application
    Filed: July 14, 2009
    Publication date: June 24, 2010
    Inventors: Hyang-Yul Kim, Hee-Seop Kim, Joo-Nyung Jang, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin, Yong-Hwan Shin
  • Publication number: 20100157223
    Abstract: The present invention discloses an alignment substrate that includes a base substrate and an alignment layer arranged on the base substrate. A plurality of unit pixels is defined in the base substrate. The alignment layer includes at least two sub-alignment portions dividing the unit pixel into at least two domains. Each sub-alignment portion is arranged in a different domain of the at least two domains and is aligned to have a different pretilt direction from the other sub-alignment portions.
    Type: Application
    Filed: November 17, 2009
    Publication date: June 24, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yong-Hwan SHIN, Baek-Kyun Jeon, Kyoung-Tae Kim, Bong-Sung Seo, Mee-Hye Jung, Young-Gu Kim, Min-Sik Jung, Byoung-Hun Sung, Jeong-Hye Choi, Sung-Yi Kim
  • Patent number: 7724268
    Abstract: A liquid crystal display is provided. The liquid crystal display has a plurality of pixels and includes a first substrate, a second substrate that is opposite to the first substrate, and a liquid crystal layer that is interposed between the first and second substrates. A phase retardation of the liquid crystal layer ranges from about 420 nm to about 500 nm.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: May 25, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong-Hwan Shin
  • Publication number: 20100123867
    Abstract: A display substrate includes a pixel electrode and a photoalignment film. The pixel electrode is disposed on a base substrate. The pixel electrode includes a first sub-electrode, a second sub-electrode separated from the first sub-electrode, and a micro-slit pattern disposed on at least one of the first and second sub-electrodes. The photoalignment film is disposed on the pixel electrode to respectively divide the first and second sub-electrodes into a plurality of domains.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 20, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Mee-Hye JUNG, Yong-Hwan Shin, Kyoung-Tae Kim, Jae-Won Jeong, Jin-Soo Jung
  • Publication number: 20100053490
    Abstract: A liquid crystal display includes a first substrate, a gate line and first and second data lines disposed on the first substrate, a first thin film transistor connected to the gate line and the first data line, a second thin film transistor connected to the gate line and the second data line, a color filter disposed on the first substrate, a protrusion disposed on the color filter, a first pixel electrode including a first linear electrode disposed on the protrusion and connected to the first thin film transistor, a second pixel electrode including a second linear electrode disposed on the protrusion and connected to the second thin film transistor, a second substrate disposed facing the first substrate, and blue phase liquid crystal disposed between the first substrate and the second substrate.
    Type: Application
    Filed: July 8, 2009
    Publication date: March 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoon KANG, Yong-Hwan SHIN, Hong-Jo PARK, Jae-Sung KIM, Yang-Ho JUNG
  • Publication number: 20100039596
    Abstract: A liquid crystal display (“LCD”) device includes a first substrate, a pixel electrode, a second substrate, a common electrode and an alignment layer. The first substrate includes a thin-film transistor (“TFT”) and a plurality of pixel areas disposed on the first substrate. The pixel electrode is disposed on the TFT. The second substrate is disposed opposite to the first substrate. The common electrode is disposed on the second substrate. The alignment layer includes an insulation layer and a photoalignment layer, disposed on at least one of the pixel electrode and the common electrode.
    Type: Application
    Filed: April 7, 2009
    Publication date: February 18, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Hwan SHIN, Kyoung-Tae KIM, Jin-Soo JUNG, Soo-Ryun CHO
  • Publication number: 20090310047
    Abstract: A liquid crystal display according to an embodiment of the present invention includes: first and second substrates opposed to each other; a liquid crystal layer including liquid crystal molecules interposed between the first and second substrates; a gate line formed on the first substrate and transmitting a gate signal; first and second data lines formed on the first substrate and transmitting first and second data voltages having different polarities; a first switching element connected to the gate line and the first data line; a second switching element connected to the gate line and the second data line; and first and second pixel electrodes that are connected to the first and second switching elements, respectively, and separated from each other, wherein the liquid crystal layer has positive dielectric anisotropy.
    Type: Application
    Filed: January 8, 2009
    Publication date: December 17, 2009
    Inventors: Yong-Hwan Shin, Hwa-Sung Woo, Kwang-Chul Jung, Chong-Chul Chai, Mee-Hye Jung
  • Publication number: 20090191782
    Abstract: In a method of manufacturing a display panel, a first alignment member is formed on a first substrate. Liquid crystal is sealed between the first substrate and a second substrate opposite to the first substrate. Then, an electric field is applied to the liquid crystal to align the liquid crystal. Ultraviolet light is irradiated onto the first alignment member to form a second alignment member while applying the electric field to the liquid crystal.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 30, 2009
    Inventors: YONG-HWAN SHIN, Jun-Woo Lee
  • Publication number: 20090091587
    Abstract: A display apparatus includes a first display plate, a first electrode and a second electrode disposed on the first display plate, a second display plate, a third electrode disposed on the second display plate, and a liquid crystal layer disposed between the first display plate and the second display plate. The liquid crystal layer includes liquid crystal molecules oriented substantially perpendicular to the first display plate and the second display plate in a state where no voltage is applied to the first to third electrodes.
    Type: Application
    Filed: June 23, 2008
    Publication date: April 9, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Woon Kim, Yong-Hwan Shin, Hwa-Sung Woo, Hee-Seop Kim
  • Publication number: 20090066891
    Abstract: A liquid crystal display (“LCD”) having controlled texture and reduced response time includes first and second insulation substrates which are separated from each other and face each other, a liquid crystal layer which is interposed between the first and second insulation substrates and has liquid crystal molecules, a pixel electrode which is disposed on the first insulation substrate and includes a plurality of first linear electrode patterns, a common electrode which is disposed on the first insulation substrate and includes a plurality of second linear electrode patterns separated from the first linear electrode patterns by a predetermined gap, and a texture control portion which is disposed in an area corresponding to the gap and formed on the first or second insulation substrate, wherein the first and second linear electrode patterns are arranged in an alternating fashion.
    Type: Application
    Filed: May 16, 2008
    Publication date: March 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hwa-sung WOO, Yong-hwan Shin, Sung-woon Kim, Hee-seop Kim
  • Publication number: 20090058784
    Abstract: A display device includes a first substrate, a first electrode comprising first electrode extensions formed on the first substrate, a second electrode comprising second electrode extensions formed on the first substrate and arranged alternately with the first electrode extensions, a second substrate facing the first substrate, liquid crystal molecules interposed between the first substrate and the second substrate, wherein electrode gaps formed between the first electrode extensions and the second electrode extensions comprise first electrode gaps and second electrode gaps, and the first electrode gaps are different from the second electrode gaps, and wherein the liquid crystal molecules are aligned vertically to the first and the second substrate, when the electric field is not formed between the first and the second substrate.
    Type: Application
    Filed: January 8, 2008
    Publication date: March 5, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-hwan SHIN, Sung-woon KIM, Hwa-sung WOO, Hee-seop KIM
  • Patent number: 7499129
    Abstract: The invention provides a LCD including an insulating substrate; a plurality of first signal lines formed on the insulating substrate; a plurality of second signal lines crossing and insulated from the first signal lines; a plurality of thin film transistors (TFT) coupled with the first and second signal lines; and a plurality of pixels including a plurality of first sub-pixel electrodes coupled with the TFTs and a plurality of second sub-pixel electrodes capacitively coupled with the first sub-pixel electrodes, wherein the pixels include a red (R) pixel, a green (G) pixel, and a blue (B) pixel and a voltage ratio or an area ratio of the second sub-pixel electrode with respect to the first sub-pixel electrode is different among the R, G, and B pixels to improve a brightness ratio of R, G, and B components at a lateral position.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: March 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Jong-Ho Son, Dong-Hoon Chung, Jun-Woo Lee, Yong-Hwan Shin, Jae-Jin Lyu, Hak-Sun Chang, Hyun-Wuk Kim, Chang-Hun Lee
  • Patent number: 7463826
    Abstract: An apparatus for measuring response time of a display apparatus including a photographing part including a charge coupled device camera and a microscope, an image processing part receiving a picture taken from a photographing part and calculating the response time thereof, and a control part applying a predetermined image signal to the display apparatus and controlling the photographing part to take a picture change of the display apparatus at a predetermined time.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: December 9, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Fusayuki Takeshita, Hiroyuki Kamiya, Kyeong-Hyeon Kim, Yong-hwan Shin, Hak-sun Chang