Patents by Inventor Hyung-Ki Hong
Hyung-Ki Hong 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: 7911548Abstract: An electrically-driven liquid crystal lens, which can be switched between a convex lens and a concave lens by changing an optical path difference based on an electric field application, and a stereoscopic display device using the same are disclosed.Type: GrantFiled: December 12, 2008Date of Patent: March 22, 2011Assignee: LG Display Co., Ltd.Inventors: Hyung Ki Hong, Hee Jin Im
-
Patent number: 7889299Abstract: A liquid crystal display device includes: a first substrate and a second substrate facing each other; a pixel electrode on an inner surface of the first substrate; a first alignment layer of a ferroelectric liquid crystal material over the pixel electrode, the first alignment layer having a first spontaneous polarization along a first direction; a common electrode on an inner surface of the second substrate; a second alignment layer of the ferroelectric liquid crystal material over the common electrode, the second alignment layer having a second spontaneous polarization along the first direction; a liquid crystal layer in between the first alignment layer and the second alignment layer, the liquid crystal layer including a nematic liquid crystal material and a dye material; and a first polarizer disposed on an outer surface of one of the first substrate and the second substrate.Type: GrantFiled: December 12, 2005Date of Patent: February 15, 2011Assignee: LG Display Co., Ltd.Inventors: Sang-Ho Choi, Su-Seok Choi, Hyung-Ki Hong
-
Patent number: 7876350Abstract: A three-dimensional image display device including a display device having odd-numbered sub-pixel columns for displaying a left image and even-numbered sub-pixel columns for displaying a right image; a first set of sub-pixels disposed in a same first horizontal line of adjacent odd-numbered sub-pixel columns have different colors; a second set of sub-pixels disposed in a same second horizontal line of adjacent even-numbered sub-pixels column have different colors; a screen positioned away from the display device for displaying the right and left images; and a slit barrier disposed between the display device and the screen for screening light from the display device.Type: GrantFiled: November 21, 2006Date of Patent: January 25, 2011Assignee: LG Display Co., Ltd.Inventors: Hyun Ho Shin, Hyung Ki Hong, Juun Park
-
Patent number: 7855756Abstract: A stereoscopic display device using an electrically-driven liquid crystal lens is disclosed. The stereoscopic display device includes a display panel, a light source to emit light, and an electrically-driven liquid crystal lens provided between the display panel and the light source and having a reflective electrode to intercept a part of the light emitted from the light source, the electrically-driven liquid crystal lens enabling a wide viewing angle or narrow viewing angle display according to whether or not voltages are applied thereto.Type: GrantFiled: October 30, 2008Date of Patent: December 21, 2010Assignee: LG Display Co., Ltd.Inventors: Hyung Ki Hong, Sung Min Jung
-
Publication number: 20100270233Abstract: A water purifying filter and method for fabricating the same are disclosed. The water purifying filter includes a support substrate, a pattern formed on the support substrate to have at least one hole, membrane protein of an aquaporin group coated on the pattern and a protective layer formed on polymer pattern having the membrane protein coated thereon.Type: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Inventors: Sang Hoon Kim, Hyung Ki Hong, Sung Su Han
-
Patent number: 7790488Abstract: An in-plane switching mode liquid crystal display (LCD) device, which reduces loss in transmittance and improves reflectance, and a method for fabricating the same are disclosed. The in-plane switching mode LCD device includes gate and data lines orthogonally crossing each other on a first substrate to define pixel regions having reflection portions and transmission portions; thin film transistors formed at the crossing of the gate and data lines; common electrodes formed at the transmission portions of the pixel regions; reflection electrodes formed at the reflection portions of the pixel regions; pixel electrodes formed parallel with the common electrodes at the transmission portions and formed above the reflection electrodes at the reflection portions; a second substrate facing and attached to the first substrate; a liquid crystal layer interposed between the first and second substrates; and first and second polarizing films respectively attached to outer surfaces of the first and second substrates.Type: GrantFiled: August 5, 2009Date of Patent: September 7, 2010Assignee: LG Display Co., Ltd.Inventor: Hyung Ki Hong
-
Patent number: 7782434Abstract: An in-plane switching mode liquid crystal display device includes a substrate; at least two gate lines disposed on the substrate; at least two data lines disposed on the substrate crossing the gate lines to define a pixel region; a driving device disposed in the pixel region; a plurality of first electrodes disposed in the pixel region; and a plurality of second electrodes disposed in the pixel region parallel with the first electrodes. At least one first electrode is overlapped with at least one second electrode. Further, each one of the first electrodes and a corresponding one of second electrodes defining an electric field in a direction parallel to a surface of the substrate.Type: GrantFiled: November 20, 2006Date of Patent: August 24, 2010Assignee: LG Display Co., Ltd.Inventors: Hyung-Ki Hong, Jin-Youl Chung
-
Patent number: 7777838Abstract: A liquid crystal display (LCD) comprises: a first substrate and a second substrate; a liquid crystal layer between the first and the second substrates; and a fluorescent color filter responding to light over the first substrate, thereby the fluorescent color filter supplies the light to the liquid crystal layer. A method for fabricating a LCD includes: preparing first and second substrates; depositing fluorescent material over the first substrate to form a color filter, the fluorescent material emitting the visible light in responding to the ULTRAVIOLET rays; and forming a liquid crystal layer between the first and second substrates.Type: GrantFiled: June 29, 2007Date of Patent: August 17, 2010Assignee: LG Display Co., Ltd.Inventors: Byung-Joo Lee, Sung-Min Jung, Ju-Un Park, Hyung-Ki Hong
-
Patent number: 7768592Abstract: A backlight unit includes at least one light emitting diode; and a diffusion plate over the at least one light emitting diode and including at least one opening portion corresponding to the at least one light emitting diode, wherein the at least one opening portion has a disconnected ring shape, and the diffusion plate further includes a first portion directly above the at least one light emitting diode and surrounded by the at least one opening portion, a second portion surrounding the at least one opening portion, and a third portion coupling the first and second portions.Type: GrantFiled: December 31, 2007Date of Patent: August 3, 2010Assignee: LG. Display Co., Ltd.Inventor: Hyung Ki Hong
-
Patent number: 7736004Abstract: A three-dimensional display device includes a plurality of projection portions to project a plurality of images, respectively, a plurality of wedge-shaped light guide plates corresponding to the plurality of projection portions, respectively, to emit the plurality of images, respectively, and a plurality of directional diffuser screen corresponding to the plurality of wedge-shaped light guide plates, respectively, to diffuse or transmit the plurality of images.Type: GrantFiled: December 11, 2006Date of Patent: June 15, 2010Assignee: LG Display Co., Ltd.Inventors: Hyung-Ki Hong, Byung-Joo Lee, Sung-Min Jung, Jun-Un Park
-
Patent number: 7731665Abstract: An apparatus and method for precisely measuring various biological information of a user's body by using a single measuring apparatus enable precisely and effectively measuring biological information including body fat, pulse and a blood vessel aging degree. By measuring an infrared absorbance or infrared rays irradiated to a measurement target according to a modulation and tuning method and obtaining the information with reference to supplementary biological information obtained from a user, the plurality of biological information can be precisely measured at a low driving voltage through the modulation and tuning method by using a single infrared light source. Also, the measuring apparatus can be reduced in size by simplifying its construction and can be effectively integrated into various device.Type: GrantFiled: September 5, 2006Date of Patent: June 8, 2010Assignee: LG Electronics, Inc.Inventors: Kwy-Ro Lee, Hyun-Ho Oh, Min-Jae Jung, Hyung-Ki Hong, Seong-Moon Cho, Youn-Jae Lee
-
Patent number: 7714946Abstract: An liquid crystal lens for improving a viewing angle and reducing crosstalk caused at the center of an electrode in a multi-view stereoscopic display fashion using an increased number of views per a viewing zone, and a stereoscopic display device using the same are disclosed. The display device includes a display panel having a plurality of sub-pixels in a matrix pattern to emit a 2-dimensional image signal, and an electrically-driven liquid crystal lens located at an upper surface of the display panel and including lens regions having a crosswise width equal to “m”, a multiple of a crosswise width of a single sub-pixel and a lengthwise width equal to “n”, a multiple of a lengthwise width of the sub-pixel, the lens regions of one line being shifted more than the lens regions of a following line by a distance “a” when viewed from a column direction.Type: GrantFiled: July 3, 2008Date of Patent: May 11, 2010Assignee: LG Display Co., Ltd.Inventors: Hyung Ki Hong, Sung Min Jung
-
Patent number: 7705813Abstract: This invention relates to a three electrode liquid crystal display panel that is adaptive for AC-driving liquid crystal cells inclusive of three electrodes, and a driving method thereof. A three electrode liquid crystal display panel according to an embodiment of the present invention includes first and second pixel electrodes disposed on a first substrate with an insulating film therebetween; and a common electrode disposed in a second substrate which is bonded with the first substrate with a liquid crystal therebetween, and wherein the first pixel electrode selectively supplies a maximum voltage and a minimum voltage, the common electrode supplies a medium voltage between the maximum voltage and the minimum voltage as a reference voltage, and the second pixel electrode supplies a positive data voltage and a negative data voltage on the basis of the reference voltage in a range between the maximum voltage and the minimum voltage, thereby AC-driving the liquid crystal.Type: GrantFiled: December 13, 2005Date of Patent: April 27, 2010Assignee: LG Display Co., Ltd.Inventor: Hyung Ki Hong
-
Publication number: 20100085517Abstract: A multi-view image display device adapted to display images different from each other using one screen of a display panel is disclosed. The multi-view image display device includes a display panel inclusive of a first color filter array having a first red sub-pixel, a first green sub-pixel and a first blue sub-pixel that constitute a first image, and a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel that constitute a second image; and a color filter barrier substrate inclusive of a second color filter array that is separated from the display panel with a fixed distance and has red, green and blue color filters. The red color filter of the second color filter array corresponds to the first blue sub-pixel and the second green sub-pixel of the first color filter array. The green color filter of the second color filter array corresponds to the first red sub-pixel and the second blue sub-pixel of the first color filter array.Type: ApplicationFiled: June 16, 2009Publication date: April 8, 2010Applicant: LG DISPLAY CO., LTDInventor: Hyung Ki HONG
-
Patent number: 7683880Abstract: A method of displaying a color image for a field sequential liquid crystal display device is provided. The method includes dividing a liquid crystal panel into n numbers of driving areas and turning on each of light sources Red, Green and Blue sequentially for every divided driving area. Furthermore, the method includes providing a time interval between driving sections of a previous light source and a next light source.Type: GrantFiled: March 3, 2006Date of Patent: March 23, 2010Assignee: LG Display Co., Ltd.Inventors: Moo-Jong Lim, Hyung-Ki Hong
-
Patent number: 7675598Abstract: An image display device includes a display panel, and a barrier including a plurality of transmissive portions and a plurality of blocking portions on the display panel, wherein the plurality of transmissive portions and the plurality of blocking portions are arranged in a matrix, wherein 3Nth rows and (3N?1)th rows include the plurality of transmissive portions and the plurality of blocking portions, N being a positive integer, (3N?2)th rows include the plurality of transmissive portions excluding the plurality of blocking portions, , and the transmissive and blocking portions are alternately arranged.Type: GrantFiled: December 26, 2006Date of Patent: March 9, 2010Assignee: LG Display Co., Ltd.Inventor: Hyung-Ki Hong
-
Publication number: 20100022042Abstract: An in-plane switching mode liquid crystal display (LCD) device, which reduces loss in transmittance and improves reflectance, and a method for fabricating the same are disclosed. The in-plane switching mode LCD device includes gate and data lines orthogonally crossing each other on a first substrate to define pixel regions having reflection portions and transmission portions; thin film transistors formed at the crossing of the gate and data lines; common electrodes formed at the transmission portions of the pixel regions; reflection electrodes formed at the reflection portions of the pixel regions; pixel electrodes formed parallel with the common electrodes at the transmission portions and formed above the reflection electrodes at the reflection portions; a second substrate facing and attached to the first substrate; a liquid crystal layer interposed between the first and second substrates; and first and second polarizing films respectively attached to outer surfaces of the first and second substrates.Type: ApplicationFiled: August 5, 2009Publication date: January 28, 2010Inventor: Hyung Ki Hong
-
Patent number: 7639336Abstract: An in-plane switching mode liquid crystal display device includes a substrate; at least two gate lines disposed on the substrate; at least two data lines disposed on the substrate crossing the gate lines to define a pixel region; a driving device disposed in the pixel region; a plurality of first electrodes disposed in the pixel region; and a plurality of second electrodes disposed in the pixel region parallel with the first electrodes. At least one first electrode is overlapped with at least one second electrode. Further, each one of the first electrodes and a corresponding one of second electrodes defining an electric field in a direction parallel to a surface of the substrate.Type: GrantFiled: March 28, 2005Date of Patent: December 29, 2009Assignee: LG Display Co., Ltd.Inventors: Hyung-Ki Hong, Jin-Youl Chung
-
Publication number: 20090231531Abstract: The present invention discloses an array substrate for an IPS-LCD device. The IPS-LCD device according to the present invention implements a multi-domain for a liquid crystal layer. The liquid crystal molecules are aligned in various directions with respect to each different domain. Therefore, the different domains compensate for one another such that a color shift is prevented in spite of wide viewing angles. To form the multi-domain, the present invention provides an array substrate having divided common electrode or pixel electrode or both. In another aspect, to form the multi-domain, the present invention provides an array substrate having multi-bar shaped common and pixel electrodes. Each of the common and pixel electrodes has a transverse portion and a perpendicular portion. The transverse portions of the common and pixel electrodes induce a first domain, whereas the perpendicular potions of the common and pixel electrodes induce a second domain.Type: ApplicationFiled: April 3, 2009Publication date: September 17, 2009Inventors: Jang-Jin Yoo, Hyung-Ki Hong, Yun-Bok Lee
-
Patent number: 7589806Abstract: An in-plane switching mode liquid crystal display (LCD) device, which reduces loss in transmittance and improves reflectance, and a method for fabricating the same are disclosed. The in-plane switching mode LCD device includes gate and data lines orthogonally crossing each other on a first substrate to define pixel regions having reflection portions and transmission portions; thin film transistors formed at the crossing of the gate and data lines; common electrodes formed at the transmission portions of the pixel regions; reflection electrodes formed at the reflection portions of the pixel regions; pixel electrodes formed parallel with the common electrodes at the transmission portions and formed above the reflection electrodes at the reflection portions; a second substrate facing and attached to the first substrate; a liquid crystal layer interposed between the first and second substrates; and first and second polarizing films respectively attached to outer surfaces of the first and second substrates.Type: GrantFiled: December 12, 2005Date of Patent: September 15, 2009Assignee: LG Display Co., Ltd.Inventor: Hyung Ki Hong