Patents by Inventor Hyun Ha Hwang
Hyun Ha Hwang 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).
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Patent number: 9971184Abstract: Discussed is a liquid crystal display device that includes a substrate having a pixel electrode and a common electrode formed thereon, a first polarizing plate on a bottom surface of the substrate, and having a polarizing axis of a first direction, a nanocapsule liquid crystal layer on the pixel electrode and the common electrode, and including a buffer layer and nanocapsules, each nanocapsules being filled with liquid crystal molecules, being oil-soluble, and being dispersed in the buffer layer, and a second polarizing plate on the nanocapsule liquid crystal layer, and having a polarizing axis of a second direction perpendicular to the first direction.Type: GrantFiled: December 22, 2015Date of Patent: May 15, 2018Assignees: LG DISPLAY CO., LTD., IMAGELAB CO., LTD.Inventors: Kyeong-Jin Kim, Min-Geun Choi, Kyung-Su Ha, Hyun-Ha Hwang, Seung-Gon Kang
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Publication number: 20160178941Abstract: Discussed is a liquid crystal display device that includes a substrate having a pixel electrode and a common electrode formed thereon, a first polarizing plate on a bottom surface of the substrate, and having a polarizing axis of a first direction, a nanocapsule liquid crystal layer on the pixel electrode and the common electrode, and including a buffer layer and nanocapsules, each nanocapsules being filled with liquid crystal molecules, being oil-soluble, and being dispersed in the buffer layer, and a second polarizing plate on the nanocapsule liquid crystal layer, and having a polarizing axis of a second direction perpendicular to the first direction.Type: ApplicationFiled: December 22, 2015Publication date: June 23, 2016Applicants: LG Display Co., Ltd., Imagelab Co., Ltd.Inventors: Kyeong-Jin Kim, Min-Geun Choi, Kyung-Su Ha, Hyun-Ha Hwang, Seung-Gon Kang
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Publication number: 20150169128Abstract: A touch display apparatus according to an embodiment of the present invention includes a display part, a common voltage generating part, a plurality of driving parts and a plurality of charge sensing parts. Thea display part includes a first substrate, a second substrate disposed opposite to the first substrate, a liquid crystal layer disposed between the first and second substrates, a common electrode formed between the first and second substrates, and a plurality of pixel electrodes formed respectively in pixels between the first and second substrates. The common voltage generating part is electrically connected to the common electrode to provide the common electrode with a common voltage. The plurality of driving parts is electrically connected to the pixel electrodes, respectively to provide the pixel electrode with a pixel voltage. The plurality of charge sensing parts is electrically connected to the pixel electrodes to sense electric charge of the pixel electrodes.Type: ApplicationFiled: July 1, 2013Publication date: June 18, 2015Applicant: INTELLECTUAL DISCOVERY CO., LTD.Inventors: Hyun-Ha Hwang, Heon-Kyu Kim
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Patent number: 9013670Abstract: The present invention relates to a liquid crystal panel having the first substrate sheet. The object of the present invention can be accomplished by a liquid crystal capsule which is mixed with a binder and printed on one surface of the first substrate on which the transparent electrode is formed; a transparent adhesive applied to entirely cover the liquid crystal capsule and the binder printed on the first substrate; and a releasing sheet which is attached to entirely cover the transparent adhesive applied on the first substrate.Type: GrantFiled: October 8, 2010Date of Patent: April 21, 2015Assignee: Imagelab Co., Ltd.Inventors: Hyun Ha Hwang, Seung Gon Kang
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Patent number: 8994897Abstract: There is provided a reflective liquid crystal display device including a first liquid crystal panel containing a first liquid crystal material that reflects light of a first color, a second liquid crystal panel containing a second liquid crystal material that reflects light of a second color and a third liquid crystal material that reflects light of a third color, the second and third liquid crystal materials positioned to be distinct from each other, and a light absorption layer that is bonded to a lower surface of the second liquid crystal panel, wherein the second liquid crystal panel is bonded to a lower surface of the first liquid crystal panel, and the first to third liquid crystal materials reflect light in a planar state and transmit light in a focal conic state.Type: GrantFiled: April 30, 2012Date of Patent: March 31, 2015Assignee: Intellectual Discovery Co., Ltd.Inventors: Hyun Ha Hwang, Seung Gon Kang, Heon Kyu Kim
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Patent number: 8934077Abstract: There is provided a cholesteric liquid crystal display device including a first liquid crystal panel containing a first cholesteric liquid crystal substancecrystal material for reflecting a light of a first color, a second liquid crystal panel containing a second cholesteric liquid crystal substancecrystal material for reflecting a light of a second color, a third liquid crystal panel containing a third cholesteric liquid crystal substancecrystal material for reflecting a light of a third color, a light absorption layer combined to a lower portion of the third liquid crystal panel, a first double-sided adhesive buffer layer configured to combine the second liquid crystal panel to a lower portion of the first liquid crystal panel and a second double-sided adhesive buffer layer configured to combine the third liquid crystal panel to a lower portion of the second liquid crystal panel.Type: GrantFiled: April 30, 2012Date of Patent: January 13, 2015Assignee: Intellectual Discovery Co., Ltd.Inventors: Hyun Ha Hwang, Seung Gon Kang, Heon Kyu Kim
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Patent number: 8786819Abstract: The present invention provides a plastic flat display and a method for manufacturing the same. In a plastic flat display including upper and lower substrates, the lower substrate is formed of an FPCB substrate for supplying an electrical signal to the plastic flat display. Accordingly, a flexible printed circuit board (FPCB) is used in an integrated type to serve as a lower substrate film of the flat display, so that an additional lower substrate is not necessary and the flat display can be implemented with a simple structure, and a method for manufacturing the plastic flat display.Type: GrantFiled: January 19, 2007Date of Patent: July 22, 2014Assignee: Intellectual Discovery Co., LtdInventors: Seok-Hong Jeong, Hyun-Ha Hwang
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Patent number: 8564588Abstract: Provided is an interface apparatus. The interface apparatus comprises a signal synthesizer, a connector, and a signal separator. The signal synthesizer outputs at least one of display signals, display control signals, and chip control signals. The connector includes a transmission line connected with the signal synthesizer and through which the display signals and the chip control signals are transmitted in common, and a transmission line through which the display control signals are transmitted. The signal separator separates the display signals and chip control signals from the signals transmitted through the transmission line through which the display signals and the chip control signals are transmitted in common.Type: GrantFiled: March 9, 2007Date of Patent: October 22, 2013Assignee: LG Display Co., Ltd.Inventors: Hyun Ha Hwang, Han Young Hong
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Patent number: 8373642Abstract: An embodiment of the present invention provides a method of driving a liquid crystal display device including a liquid crystal panel, and a backlight assembly providing light to the liquid crystal panel by a field sequential driving method, the method includes: displaying an image, at the liquid crystal panel and the backlight assembly, by time-dividing two frames into five sub-frames, wherein when images are displayed in the two frames, images of a first frame and a second frame of the two frames share one blue light.Type: GrantFiled: November 13, 2006Date of Patent: February 12, 2013Assignee: LG Display Co., Ltd.Inventors: Jang Ho Kim, Hyun Ha Hwang
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Publication number: 20120274648Abstract: There is provided a memory-effect display device including a memory-effect display, a data buffer unit that stores input data to be displayed on the memory-effect display, a buffer control unit that controls only some scan line data of input data of each frame to be stored in the data buffer unit, and a display control unit that controls the input data stored in the data buffer unit to be displayed at respective scan lines of the memory-effect display, wherein the display control unit controls only the some scan line data on the memory-effect display according to information of scan lines where the input data stored in the data buffer unit are to be assigned, and scan lines where the some scan line data are not assigned are maintained as they were displayed based on frame data before frame data containing the some scan line data are input.Type: ApplicationFiled: April 30, 2012Publication date: November 1, 2012Applicant: INTELLECTUAL DISCOVERY CO., LTD.Inventors: Hyun Ha Hwang, Seung Gon Kang, Heon Kyu Kim
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Publication number: 20120274886Abstract: There is provided a reflective liquid crystal display device including a first liquid crystal panel containing a first liquid crystal material that reflects light of a first color, a second liquid crystal panel containing a second liquid crystal material that reflects light of a second color and a third liquid crystal material that reflects light of a third color, the second and third liquid crystal materials positioned to be distinct from each other, and a light absorption layer that is bonded to a lower surface of the second liquid crystal panel, wherein the second liquid crystal panel is bonded to a lower surface of the first liquid crystal panel, and the first to third liquid crystal materials reflect light in a planar state and transmit light in a focal conic state.Type: ApplicationFiled: April 30, 2012Publication date: November 1, 2012Applicant: INTELLECTUAL DISCOVERY CO., LTD.Inventors: Hyun Ha Hwang, Seung Gon Kang, Heon Kyu Kim
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Publication number: 20120274620Abstract: There is provided a data writing apparatus for e-paper including a base unit on which the e-paper is provided and which applies a driving voltage corresponding to input data to the e-paper through an electrode array, and a first roller that is rotated around a central axis in a predetermined direction on the base unit and presses a part of the e-paper to be in contact with the base unit, wherein when the e-paper is pressed to be in contact with the base unit by the first roller, the base unit applies the driving voltage to the e-paper and data are written in the e-paper.Type: ApplicationFiled: April 30, 2012Publication date: November 1, 2012Applicant: INTELLECTUAL DISCOVERY CO., LTD.Inventors: Hyun Ha Hwang, Seung Gon Kang, Heon Kyu Kim
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Publication number: 20120274887Abstract: There is provided a cholesteric liquid crystal display device including a first liquid crystal panel containing a first cholesteric liquid crystal substancecrystal material for reflecting a light of a first color, a second liquid crystal panel containing a second cholesteric liquid crystal substancecrystal material for reflecting a light of a second color, a third liquid crystal panel containing a third cholesteric liquid crystal substancecrystal material for reflecting a light of a third color, a light absorption layer combined to a lower portion of the third liquid crystal panel, a first double-sided adhesive buffer layer configured to combine the second liquid crystal panel to a lower portion of the first liquid crystal panel and a second double-sided adhesive buffer layer configured to combine the third liquid crystal panel to a lower portion of the second liquid crystal panel.Type: ApplicationFiled: April 30, 2012Publication date: November 1, 2012Applicant: INTELLECTUAL DISCOVERY CO., LTD.Inventors: Hyun Ha Hwang, Seung Gon Kang, Heon Kyu Kim
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Patent number: 8299985Abstract: Provided is an organic light-emitting display device. The organic light-emitting display device includes a light-emitting unit having a plurality of OLEDs to emit light, a light-emitting level setting unit setting a light-emitting level depending on a light-emitting area and/or change in a light-emitting degree of the light-emitting unit, a look-up table in which data for the light-emitting degree of the light-emitting unit that corresponds to each light-emitting area for each light-emitting level is set and stored, a light-emitting control unit controlling the light-emitting area of the light-emitting unit and/or the light-emitting degree depending on a light-emitting level with reference to the data set on the look-up table.Type: GrantFiled: June 19, 2006Date of Patent: October 30, 2012Assignee: LG Display Co., Ltd.Inventors: Seung Rok Shin, Hyun Ha Hwang
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Patent number: 8294722Abstract: An interface apparatus and method are provided. The interface apparatus includes a level detecting unit detecting a level of an inputted control signal, a counter unit increasing or decreasing a count value according to the level detected in the level detecting unit, and a driving control unit outputting a driving control information mapped into a count value of the counter unit.Type: GrantFiled: November 13, 2006Date of Patent: October 23, 2012Assignee: LG Display Co., Ltd.Inventors: Han Young Hong, Hyun Ha Hwang
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Publication number: 20120188488Abstract: The present invention relates to a liquid crystal panel having the first substrate sheet. The object of the present invention can be accomplished by a liquid crystal capsule which is mixed with a binder and printed on one surface of the first substrate on which the transparent electrode is formed; a transparent adhesive applied to entirely cover the liquid crystal capsule and the binder printed on the first substrate; and a releasing sheet which is attached to entirely cover the transparent adhesive applied on the first substrate.Type: ApplicationFiled: October 8, 2010Publication date: July 26, 2012Applicant: IMAGELAB CO., LTD.Inventors: Hyun Ha Hwang, Seung Gon Kang
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Patent number: 8188954Abstract: Provided are a display device and a mobile terminal having the same. The display device includes a transflective liquid crystal panel, a first light unit on a rear side of the transflective liquid crystal panel, and a second light unit on a front side of the transflective liquid crystal panel.Type: GrantFiled: August 1, 2007Date of Patent: May 29, 2012Assignee: LG Display Co., Ltd.Inventors: Hyun Ha Hwang, Seung Gon Kang
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Patent number: 8045087Abstract: Provided is an LCD device. The LCD device includes liquid crystal panel, a mold frame, and an impact absorbing member. The liquid crystal panel has a first substrate, a second substrate, and a liquid crystal layer interposed between the first and second substrates. The liquid crystal panel is seated on the mold frame. The impact absorbing member is formed between the liquid crystal panel and the mold frame.Type: GrantFiled: December 21, 2006Date of Patent: October 25, 2011Assignee: LG Display Co., Ltd.Inventors: Hyun Ha Hwang, Yong Gu Cho
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Patent number: 7804555Abstract: An LCD includes a transmissive liquid crystal panel, a front light unit placed in front of the transmissive liquid crystal panel and providing light for image display, and a light control unit placed at the rear of the transmissive liquid crystal panel and reflecting or transmitting incident light. A mobile station includes: an LCD having a transmissive liquid crystal panel, a front light unit placed in front of the transmissive liquid crystal panel and providing light for image display and a light control unit placed at the rear of the transmissive liquid crystal panel and reflecting or transmitting incident light, a communication unit for communicating with an exterior, and a control unit controlling the communication unit and the image display of the LCD.Type: GrantFiled: January 18, 2006Date of Patent: September 28, 2010Assignee: LG Display Co., Ltd.Inventors: Sung Ho Kim, Hyun Ha Hwang
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Publication number: 20100195042Abstract: The present invention provides a plastic flat display and a method for manufacturing the same. In a plastic flat display including upper and lower substrates, the lower substrate is formed of an FPCB substrate for supplying an electrical signal to the plastic flat display. Accordingly, a flexible printed circuit board (FPCB) is used in an integrated type to serve as a lower substrate film of the flat display, so that an additional lower substrate is not necessary and the flat display can be implemented with a simple structure, and a method for manufacturing the plastic flat display.Type: ApplicationFiled: January 19, 2007Publication date: August 5, 2010Applicant: IMAGE LAB CO., LTDInventors: Seok-Hong Jeong, Hyun-Ha Hwang