Patents by Inventor Dong Hae Suh

Dong Hae Suh 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).

  • Patent number: 8724064
    Abstract: Provided is a liquid crystal display including a transparent pixel electrode and a transparent common electrode in a pixel region to drive liquid crystals. The transparent common electrode includes a plurality of slits and is configured to open at least a portion of a switching device to connect unit pixels, the slits have an angle of 5 to 10° with respect to a gate line, and a rubbing direction of a liquid crystal layer is substantially parallel to a gate direction. Therefore, it is possible to provide the liquid crystal display capable of removing factors decreasing an aperture ratio, preventing light from leaking, and further improving internal reflection.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: May 13, 2014
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Ock Soo Son, Won Hee Lee, Soo Young Choi, Dong Hae Suh
  • Patent number: 8094265
    Abstract: The present invention relates to a liquid crystal display, comprising a lower alignment film formed on a lower substrate; an upper alignment film formed on an upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate; and a polarizer adhered on the phase compensation film wherein the lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.27 ?m, the phase compensation film has a phase compensation function of ?/4 and also has an optical axis making 140-146° with a horizontal line, and the polarizer has a absorption axis making 120 to 122.5° with a horizontal line.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: January 10, 2012
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Dong Hae Suh, Young Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee
  • Patent number: 8094264
    Abstract: The present invention relates to a liquid crystal display, comprising a lower alignment film formed on a lower substrate; an upper alignment film formed on an upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate; and a polarizer adhered on the phase compensation film wherein the lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.27 ?m, the phase compensation film has a phase compensation function of ?/4 and also has an optical axis making 140-146° with a horizontal line, and the polarizer has a absorption axis making 120 to 122.5° with a horizontal line.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: January 10, 2012
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Dong Hae Suh, Young Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee
  • Publication number: 20110109861
    Abstract: Provided is a liquid crystal display including a transparent pixel electrode and a transparent common electrode in a pixel region to drive liquid crystals. The transparent common electrode includes a plurality of slits and is configured to open at least a portion of a switching device to connect unit pixels, the slits have an angle of 5 to 10° with respect to a gate line, and a rubbing direction of a liquid crystal layer is substantially parallel to a gate direction. Therefore, it is possible to provide the liquid crystal display capable of removing factors decreasing an aperture ratio, preventing light from leaking, and further improving internal reflection.
    Type: Application
    Filed: July 7, 2010
    Publication date: May 12, 2011
    Applicant: HYDIS TECHNOLOGIES CO., LTD.
    Inventors: Ock Soo Son, Won Hee Lee, Soo Young Choi, Dong Hae Suh
  • Publication number: 20100288073
    Abstract: The present disclosure relates to a steering wheel for automobiles and a method of fabricating the same. The steering wheel is formed in multiple layers having a thickness difference of 2˜3 mm by multi-stage injection molding and has a pattern or picture between the layers to provide a luxurious and pleasant appearance. In the method, after being preheated in a dryer to remove moisture, a metal frame is subjected to primary to tertiary injection molding in a mold to form the multiple layers. Here, drying is performed to remove moisture from the surface of injection-molded parts to prevent deterioration in adherence and quality during the process. Here, the pattern or figure is inserted between the layers by pad printing or a combination of pad printing and vacuum deposition. The multi-stage injection molding allows various colors, patterns, and figures to be printed on injection-molded parts excluding the uppermost layer.
    Type: Application
    Filed: October 30, 2009
    Publication date: November 18, 2010
    Inventors: Gi Ug SHIN, Mun Seok Choi, Young Jong Sung, Dong Hae Suh
  • Publication number: 20100033656
    Abstract: The present invention relates to a liquid crystal display, comprising a lower alignment film formed on a lower substrate; an upper alignment film formed on an upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate; and a polarizer adhered on the phase compensation film wherein the lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.27 ?m, the phase compensation film has a phase compensation function of ?/4 and also has an optical axis making 140-146° with a horizontal line, and the polarizer has a absorption axis making 120 to 122.5° with a horizontal line.
    Type: Application
    Filed: August 21, 2009
    Publication date: February 11, 2010
    Inventors: Dong Hae SUH, Young Il PARK, Hee Cheol KIM, Hwan Su SHIM, Won Geon LEE
  • Publication number: 20100026944
    Abstract: The present invention relates to a liquid crystal display, comprising a lower alignment film formed on a lower substrate; an upper alignment film formed on an upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate; and a polarizer adhered on the phase compensation film wherein the lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.27 ?m, the phase compensation film has a phase compensation function of ?/4 and also has an optical axis making 140-146° with a horizontal line, and the polarizer has a absorption axis making 120 to 122.5° with a horizontal line.
    Type: Application
    Filed: August 21, 2009
    Publication date: February 4, 2010
    Inventors: Dong Hae SUH, Young Il PARK, Hee Cheol KIM, Hwan Su SHIM, Won Geon LEE
  • Patent number: 7599022
    Abstract: The present invention relates to a liquid crystal display, which comprises: a lower substrate having a reflective electrode; a lower alignment film formed on the lower substrate; an upper substrate having a color filter and disposed opposite to the lower substrate; an upper alignment film formed on the upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate and serving to convert linearly polarized light into circularly polarized light; and a polarizer adhered on the phase compensation film and serving to convert natural light into linearly polarized light. The lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: October 6, 2009
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Dong-Hae Suh, Young Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee
  • Patent number: 7570325
    Abstract: Disclosed is a transflective liquid crystal display having a high opening ratio and a single cell gap structure, which includes first and second substrates arranged opposite each other and respectively having reflective and transmissive regions; an opposite direction reflector disposed on the first substrate for reflecting introduced light to the transmissive regions; a color filter formed on the first substrate; transparent electrodes formed on the color filter; a lower polarization plate attached on the first substrate; common electrodes formed on the second substrate; an upper polarization plate attached on the second substrate; and a liquid crystal layer interposed between the first and second substrates, wherein the liquid crystal layer corresponding to the reflective region includes a fixing retardation area in which introduced light is always subjected to a constant phase difference.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: August 4, 2009
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Hoon Jo Chang, Dong Hae Suh, Young Il Park
  • Patent number: 7214556
    Abstract: Disclosed is a method for forming an alignment layer of an LCD capable of preventing Mura defects when the alignment layer is formed through an LC one drop fill process. The method includes the steps of coating a mixing solution including a solvent and organic polymer materials consisting of polyimide and polyamic acid on the substrates, pre-curing the mixing solution twice with mutually different temperatures, thereby volatizing the solvent and obtaining stable phase-separation between the organic polymer materials and the solvent, and completely curing the pre-cured mixing solution at a temperature of about 180 to 240° C. A primary pre-curing process is performed at a temperature less than 50° C. under vacuum pressure of about ?35 to ?50 psi, and a secondary pre-curing process is performed at a temperature within a range of about 50 to 75° C. under the same vacuum pressure.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: May 8, 2007
    Assignee: Boe Hydis Technology Co., Ltd.
    Inventors: Dong Hae Suh, Young Il Park, Soo Young Choi, Gon Son
  • Publication number: 20060238683
    Abstract: The present invention relates to a liquid crystal display, which comprises: a lower substrate having a reflective electrode; a lower alignment film formed on the lower substrate; an upper substrate having a color filter and disposed opposite to the lower substrate; an upper alignment film formed on the upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate and serving to convert linearly polarized light into circularly polarized light; and a polarizer adhered on the phase compensation film and serving to convert natural light into linearly polarized light. The lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.
    Type: Application
    Filed: June 19, 2006
    Publication date: October 26, 2006
    Inventors: Dong Hae Suh, Yong Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee
  • Patent number: 7075605
    Abstract: A HAN-mode liquid crystal display includes a lower alignment film formed on a lower substrate; an upper alignment film formed on an upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate and a polarizer adhered on the phase compensation film wherein the lower alignment film has an alignment angle of ?40 to ?50° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.36–0.40 ?m, the phase compensation film has a phase compensation function of ?/4 and also has an optical axis making 167–173° or 7 to 13° with a horizontal line and the polarizer has an absorption axis making an angle of 42 to 48° with a horizontal line.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: July 11, 2006
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Dong-Hae Suh, Young Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee
  • Patent number: 7009674
    Abstract: Disclosed is a vertical alignment mode liquid crystal display. The liquid crystal display comprises a pixel electrode formed on a lower substrate, a counter electrode formed on an upper substrate, and a vertical alignment layer forcing liquid crystal molecules in a liquid crystal layer to be aligned in a vertical direction, wherein the counter electrode is parallelly faced to the pixel electrode while being displaced from the pixel electrode at an interval along a surface of the lower substrate or the upper substrate. Therefore, the liquid crystal display has various properties of a high contrast, a high transmittance resulting from constraint of a disclination, and a fast response speed resulting from identical alignment of the liquid crystal molecules.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: March 7, 2006
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Sung Woon Kim, Dong Hae Suh
  • Patent number: 6989521
    Abstract: A semi-transmission type liquid crystal display device has a liquid crystal layer between lower and upper substrates, each having a reflection electrode and a lower orientation film. The upper substrate has a color filter and an upper orientation film. Upper and lower phase films are positioned on the upper and lower substrates, respectively, to transform polarized light from linear to circular. Upper and lower polarization plates are provided on the upper and lower phase films, respectively. The liquid crystal layer phase delay d? n is 0.24–0.27 ?m. The upper phase film has a function of ?/4 phase compensation and an optical axis of 140° to 146°. The upper orientation film has an orientation angle of 40°–50°, and the lower orientation film has an orientation angle of ?10° to ?20° relative to a horizontal line. The upper polarization plate has a transmission axis angle of 104°–122.5°.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: January 24, 2006
    Assignee: Boe Hydis Technology Co., Ltd.
    Inventors: Young Il Park, Dong Hae Suh
  • Publication number: 20050280759
    Abstract: The present invention relates to a liquid crystal display, which comprises: a lower substrate having a reflective electrode; a lower alignment film formed on the lower substrate; an upper substrate having a color filter and disposed opposite to the lower substrate; an upper alignment film formed on the upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate and serving to convert linearly polarized light into circularly polarized light; and a polarizer adhered on the phase compensation film and serving to convert natural light into linearly polarized light. The lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.
    Type: Application
    Filed: August 10, 2005
    Publication date: December 22, 2005
    Inventors: Dong-Hae Suh, Young Park, Hee Kim, Hwan Shim, Won Lee
  • Patent number: 6947112
    Abstract: The present invention relates to a liquid crystal display, comprising a lower alignment film formed on a lower substrate; an upper alignment film formed on an upper substrates; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate and a polarizer adhered on the phase compensation film wherein the lower alignment film has an alignment angle of 10-20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.27 ?m, the phase compensation film has a phase compensation function of ?/4 and also has an optical axis making 140-146° with a horizontal line and the polarizer has an absorption axis making 120 to 122.5° with a horizontal line.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: September 20, 2005
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Dong Hae Suh, Young Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee
  • Patent number: 6914657
    Abstract: The present invention provides a liquid crystal display having improved screen quality by preventing abnormal light leakage due to ions in a pixel. The present invention comprises: an array substrate whereon a plurality of gate lines and data lines are arranged to be perpendicular to each other, a TFT is formed at the intersection of the lines and a pixel electrode is formed in a pixel region defined by the lines; a color filter substrate combined with the array substrate, whereon a color filter is formed corresponding to the pixel region, a block matrix is formed corresponding to the interface of pixels and a counter electrode is formed on the whole surface including the color filter and the black matrix; and a liquid crystal layer comprising a plurality of liquid crystal molecules interposed between the array substrate and the color filter substrate, wherein the pixel electrode has a rectangular shape and a plurality of acute angle Tips are formed on the edges thereof.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: July 5, 2005
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Sung Woon Kim, Dong Hae Suh, Youn Hak Jeong
  • Patent number: 6829024
    Abstract: The present invention relates to a reflective liquid crystal display and a fabricating method thereof. The reflective liquid crystal display of the present invention comprises a gate formed on a transparent substrate; an insulating film formed on a transparent electrode including the gate; an amorphous silicon layer pattern, an ohmic layer pattern and a source/drain region deposited on the insulating film; a resin layer which is formed on the entire structure including the source/drain region such a manner that the drain region is partially exposed through the resin layer; a first reflective electrode formed on the resin layer including the drain region; and a second reflective electrode of an uneven shape formed on the first reflective electrode.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: December 7, 2004
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Young Il Park, Dong Hae Suh, Jai Wan Koh
  • Publication number: 20040201801
    Abstract: A semi-transmission type liquid crystal display device has a liquid crystal layer between lower and upper substrates, each having a reflection electrode and a lower orientation film. The upper substrate has a color filter and an upper orientation film. Upper and lower phase films are positioned on the upper and lower substrates, respectively, to transform polarized light from linear to circular. Upper and lower polarization plates are provided on the upper and lower phase films, respectively. The liquid crystal layer phase delay d&Dgr;n is 0.24-0.27 &mgr;m. The upper phase film has a function of &lgr;/4 phase compensation and an optical axis of 140° to 146° The upper orientation film has an orientation angle of 40°-50°, and the lower orientation film has an orientation angle of −10° to −20° relative to a horizontal line. The upper polarization plate has a transmission axis angle of 104°-122.5°.
    Type: Application
    Filed: September 26, 2003
    Publication date: October 14, 2004
    Inventors: Young IL Park, Dong Hae Suh
  • Publication number: 20040021817
    Abstract: The present invention relates to a liquid crystal display, which comprises: a lower substrate having a reflective electrode; a lower alignment film formed on the lower substrate; an upper substrate having a color filter and disposed opposite to the lower substrate; an upper alignment film formed on the upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate and serving to convert linearly polarized light into circularly polarized light; and a polarizer adhered on the phase compensation film and serving to convert natural light into linearly polarized light. The lower alignment film has an alignment angle of −10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d&Dgr;n) of 0.24-0.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 5, 2004
    Inventors: Dong Hae Suh, Young Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee