Patents by Inventor Jae Hak Shin
Jae Hak 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).
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Publication number: 20240123109Abstract: An air purification module comprises a housing having an interior space provided with an air inlet and an air outlet, and an axial type blowing fan, mounted in the housing, for moving air from the air inlet to the air outlet. The air purification module further includes an air purifying unit, provided on a flow path of the air, for purifying the air and a guide for reducing the flow rate of the air between the blowing fan and the air purifying unit. The air purifying unit includes a filter provided between the blowing fan and the air outlet and a light source unit for providing light to the filter.Type: ApplicationFiled: September 27, 2023Publication date: April 18, 2024Inventors: Ji Won KIM, Jae Hak JEONG, Sang Cheol SHIN, Woong Ki JUNG
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Publication number: 20240103438Abstract: A method and a system thereof for producing a digital holographic screen based on multi-hogel printing are proposed. The system includes a light source unit including lasers, a dichroic mirror for RGB three color matching, mirrors, a beam splitter, and an optical shutter, an object beam unit including a spatial filter, a lens, and a mirror, a reference beam unit including a spatial filter, a lens, and a mirror, a diffuser fixing unit including a diffuser holder and a diffuser positioned between the object beam unit and a recording material and configured to scatter and diffuse the object beam, a photomask movement unit including a photomask holder, an XY-translation stage, and a photomask positioned between the reference beam unit and the recording medium and on which a grid-shaped on/off binary pattern is printed, and a controller configured to control the optical shutter and the XY-translation stage.Type: ApplicationFiled: November 11, 2021Publication date: March 28, 2024Inventors: Dong Hak SHIN, Yong Seok OH, Jae Hong KIM, Jong sung JUNG, Jae Woo PARK, Jun Yong CHOI
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Patent number: 11931490Abstract: An air purification module for purifying air includes a photocatalyst filter and a light source unit sequentially arranged in a selected direction. The light source unit is spaced apart from the photocatalyst filter to provide light to the photocatalyst filter and includes a substrate and a light source disposed on the substrate. The substrate includes at least one aperture to control a flow channel and a flow velocity of air so as to improve air purification effects through the photocatalyst filter when the air flows from the substrate towards the photocatalyst filter.Type: GrantFiled: April 2, 2021Date of Patent: March 19, 2024Assignee: SEOUL VIOSYS CO., LTD.Inventors: Jae Hak Jeong, Ji Won Kim, Sang Cheol Shin
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Patent number: 11920026Abstract: Disclosed herein is a novel polymer having a structure based on a biodegradable polymer. In the novel polymer, the biodegradable polymer has at least one kind of functional groups from among a hydroxyl group and a carboxyl group, wherein the biodegradable polymer bears a functional group conjugated with a nitric oxide-releasing compound and a different functional group substituted with a photopolymerizable functional group, the nitric oxide-releasing compound comprising a NO donor. Also provided is a nanofiber fabricated from the modified biodegradable polymer. The nanofiber can be fabricated by electrospinning the novel polymer.Type: GrantFiled: April 10, 2020Date of Patent: March 5, 2024Assignee: I-Corebio Inc.Inventors: Jae Ho Shin, Ki Hak Gwon
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Patent number: 6462801Abstract: A liquid crystal display, comprising: a plurality of gate lines being spaced in a selected distance; a plurality of data lines being spaced in a selected distance, the data lines where a data line driving signal is provided being crossed with the gate lines to define a plurality of R, G and B pixel regions, each of data lines being split into a pair of data lines; a plurality of R, G and B dots disposed in the R, G, and B pixel regions, respectively; and a plurality of switching devices disposed in the R, G, B pixel regions, each being connected to corresponding gate line and data line of a plurality of gate lines and data lines; wherein by the split data lines, each of the R, G and B pixel regions is divided into a plurality of R, G and B sub pixel regions; and each of the R, G and B dots includes a plurality of R, G and B subdots, each of R, G and B subdots being disposed in each of R, G and B sub pixel regions, respectively.Type: GrantFiled: May 8, 2001Date of Patent: October 8, 2002Assignee: Hyundai Display Technology Inc.Inventors: Jae Hak Shin, Gyo Un Choi
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Patent number: 6429842Abstract: A TFT-LCD comprising: a plurality of data lines being spaced with each other; a plurality of gate lines being spaced with each other and being crossed with the gate lines; and a plurality of TFTs; wherein TFTs of the plurality of TFTs which are connected to odd data lines of the plurality of data lines, are disposed in the upside of the gate lines and the TFTs of the plurality of TFTs which are connected to the even data lines of the plurality of data lines, are disposed on the downside of the gate lines, thereby being disposed with a zig-zag form; and wherein data signals having different polarities are respectively applied to the data lines corresponding to the odd gate lines of the plurality of gate lines and to the data lines corresponding to the even gate lines of the plurality of gate lines, thereby applying the data signals having different polarities between adjacent two pixels.Type: GrantFiled: April 21, 1999Date of Patent: August 6, 2002Assignee: Hyundai Display Technology Inc.Inventors: Jae Hak Shin, Keun Soo Lee
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Patent number: 6356328Abstract: In a liquid crystal display having an upper substrate and a lower substrate opposite thereto, a liquid crystal molecules interposed therebetween, a gate bus and data bus line arranged in a first direction and the second direction respectively on the lower substrate, thus defining a space for an unit cell of the liquid crystal display, a channel layer at the intersection of the gate bus line and the data bus line, a counter electrode and a pixel electrode for operating the liquid crystal molecules disposed at unit cell and an insulating layer for isolating the gate bus line from the data bus line, the part of the counter electrode and the part of the pixel electrode by which the electric field parallel to the gate bus line are located in the space for unit cell and has sectional view of a substantial triangle shape.Type: GrantFiled: November 24, 1998Date of Patent: March 12, 2002Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jae Hak Shin, Seung Hee Lee
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Patent number: 6309903Abstract: A method for manufacturing a fringe field switching mode liquid crystal display device which can improve productivity by reducing the number of steps in the manufacturing process. In this improved method of manufacture, the gate bus line is formed having a stacked structure of a transparent metal layer and an opaque metal layer. In the formation of the gate bus line, the counter electrode is firstly formed, and the active region is formed to cover the gate bus line. Thereafter, the counter electrode is formed by removing the opaque metal layer on the exposed surface of the counter electrode structure. By this method, the gate bus line and the counter electrode structure are formed at the same time thereby reducing the number of mask processes from six, as required by using the conventional manufacturing method, to five.Type: GrantFiled: December 7, 2000Date of Patent: October 30, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jae Hak Shin, Sung Hyun Cho
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Publication number: 20010019383Abstract: A liquid crystal display, comprising: a plurality of gate lines being spaced in a selected distance; a plurality of data lines being spaced in a selected distance, the data lines where a data line driving signal is provided being crossed with the gate lines to define a plurality of R, G and B pixel regions, each of data lines being split into a pair of data lines; a plurality of R, G and B dots disposed in the R, G, and B pixel regions, respectively; and a plurality of switching devices disposed in the R, G, B pixel regions, each being connected to corresponding gate line and data line of a plurality of gate lines and data lines; wherein by the split data lines, each of the R, G and B pixel regions is divided into a plurality of R, G and B sub pixel regions; and each of the R, G and B dots includes a plurality of R, G and B subdots, each of R, G and B subdots being disposed in each of R, G and B sub pixel regions, respectively.Type: ApplicationFiled: May 8, 2001Publication date: September 6, 2001Inventors: Jae Hak Shin, Gyo Un Choi
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Patent number: 6259504Abstract: A liquid crystal display, comprising: a plurality of gate lines being spaced in a selected distance; a plurality of data lines being spaced in a selected distance, the data lines where a data line driving signal is provided being crossed with the gate lines to define a plurality of R, G and B pixel regions, each of data lines being split into a pair of data lines; a plurality of R, G and B dots disposed in the R, G, and B pixel regions, respectively; and a plurality of switching devices disposed in the R, G, B pixel regions, each being connected to corresponding gate line and data line of a plurality of gate lines and data lines; wherein by the split data lines, each of the R, G and B pixel regions is divided into a plurality of R, G and B sub pixel regions; and each of the R, G and B dots includes a plurality of R, G and B subdots, each of R, G and B subdots being disposed in each of R, G and B sub pixel regions, respectively.Type: GrantFiled: December 21, 1998Date of Patent: July 10, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jae Hak Shin, Gyo Un Choi
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Publication number: 20010005597Abstract: A method for manufacturing a fringe field switching mode liquid crystal display device includes the steps of: forming a gate bus line, a counter electrode structure and a gate pad, by stacking and patterning a transparent conductive layer and an opaque metal film on a lower substrate; forming an active region by stacking a gate insulating film, an amorphous silicon layer for a channel and a doped amorphous silicon layer on the lower substrate, and patterning the doped amorphous silicon layer and the amorphous silicon layer to cover the gate bus line; forming a counter electrode by removing the opaque metal film on the exposed counter electrode structure; depositing an insulating film; forming a pixel electrode by forming a transparent conductive layer on the insulating film, and patterning it in a comb shape to be overlapped with the counter electrode; etching the insulating film to open the gate pad, and etching the insulating film in the active region; and forming a data bus line, a source electrode and a dType: ApplicationFiled: December 7, 2000Publication date: June 28, 2001Inventors: Jae Hak Shin, Sung Hyun Cho
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Patent number: 6198516Abstract: Disclosed is a thin film transistor liquid crystal display capable of fast operation and having enhanced display quality. The thin film transistor liquid crystal display comprises a transparent insulating substrate; gate lines and storage lines arranged on the transparent insulating substrate in rows parallel to each other alternatively; data lines arranged in columns perpendicular to the gate lines and the storage lines so as to define pixel areas; a first pixel area defined by a pair of gate lines and a pair of data lines, and a second pixel area defined by a pair of storage lines and a pair of data lines; and a first thin film transistor disposed adjacent to an intersection of the gate line and the data line and in contact with the first pixel electrode on an upper position, and a second thin film transistor disposed adjacent to an intersection of the storage line and the data line and in contact with the second pixel electrode on a lower position.Type: GrantFiled: December 21, 1999Date of Patent: March 6, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Choong Hoo Kim, Jae Hak Shin, Jin San Park
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Patent number: 5929501Abstract: A liquid crystal display device that includes a storage capacitor having a capacitor electrode for storing voltage applied to a pixel electrode for a constant period of time, is disclosed. The device includes: a plurality of data lines arranged in parallel over an insulation glass substrate; a plurality of gate lines arranged in parallel over the insulation glass, gate lines being crossed with the data lines to define a plurality of pixel regions; a plurality of the pixel electrodes formed at the pixel regions, respectively; a plurality of TFTs formed at the cross points of the data lines and the gate lines, and each TFT is connected to each data line and each pixel electrode, respectively; and a plurality of opaque layers formed on the insulation glass substrate 40, each light shielding layer consisting of a body and a plurality of protrusions, and the body being elongated along each data line and overlapped with the portions of pixel electrodes and each protrusion protruded from the body to each TFT.Type: GrantFiled: November 20, 1996Date of Patent: July 27, 1999Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jae-Hak Shin, Hae-Sung Park