Patents by Inventor Dae-Ho Choo
Dae-Ho Choo 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: 8582074Abstract: Disclosed is an in-line system and a method for manufacturing a liquid crystal display. The system includes a spacer-dispersing unit for dispersing spacers on one of two substrates of a mother glass, the mother glass having at least one liquid crystal cell; a sealant-applying unit for depositing a sealant on one of the two substrates; a liquid crystal depositing unit for depositing liquid crystal material on the substrate on which the sealant is deposited; and a substrate-attaching unit for receiving the two substrates from the sealant-applying unit or the liquid crystal depositing unit, then conjoining the substrates in a vacuum state.Type: GrantFiled: June 24, 2003Date of Patent: November 12, 2013Assignee: Samsung Display Co., Ltd.Inventors: Dae-Ho Choo, Sang-Uk Jung
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Patent number: 8581865Abstract: A display device is provided with a touch panel includes: a base substrate; a first transparent electrode layer located on the base substrate; an ultrasonic wave guiding layer located on the first transparent electrode layer; a second transparent electrode layer located on the ultrasonic wave guiding layer; an ultrasonic wave transmitting unit and an ultrasonic wave receiving unit located on the second transparent electrode layer; and a protecting layer located on the second transparent electrode layer.Type: GrantFiled: January 21, 2011Date of Patent: November 12, 2013Assignee: Samsung Display Co., Ltd.Inventors: Dae-Ho Choo, Ho-Min Kang
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Patent number: 8451231Abstract: Disclosed herein is a touch screen panel, a method of manufacturing the touch screen panel, and a display having the touch screen panel. Ultrasonic excitation and detection transducers are attached to the front surface of the image display unit of a display, thereby implementing the touch screen panel. The substrate of the display, that is, the upper surface of the image display unit is used as a surface acoustic wave propagation medium, so that it is not required to manufacture the touch screen panel in a separate substrate and to attach the substrate, in which the touch screen panel is manufactured, to the image display unit of the display, thereby not only preventing degradation of image quality but also not increasing the thickness and size thereof.Type: GrantFiled: August 2, 2007Date of Patent: May 28, 2013Assignee: Samsung Display Co., Ltd.Inventors: Dae Ho Choo, Yang Suk Ahn, Yeon Hee Yu
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Patent number: 8169428Abstract: A display device includes silver-molybdenum alloy electrodes having high reflectivity despite annealing temperatures. The display may have a first display substrate, a second display substrate and a liquid crystal layer. The first display substrate includes signal-applying modules (e.g., TFTs) disposed on a first substrate each including an output terminal configured to output a data signal, a patterned insulation layer having contact holes that expose the output terminals, and silver-molybdenum alloy electrodes (made of silver and molybdenum) electrically connected to the output terminals. The silver-molybdenum alloy electrode is employed in the display device, thereby increasing reflectivity of the display device and improving display quality of an image displayed by the display device.Type: GrantFiled: June 23, 2006Date of Patent: May 1, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Hwan Cho, Ho-Nam Yum, Dae-Ho Choo
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Patent number: 8106364Abstract: An X-ray detecting panel includes a thin film transistor; first and second photosensors connected to the thin film transistor; and a scintillator which changes X-rays that are external and incident thereto into visible light rays.Type: GrantFiled: August 8, 2008Date of Patent: January 31, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Kwan-Wook Jung, Dae-Ho Choo
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Patent number: 8081273Abstract: The present invention relates to a liquid crystal display (LCD) and a method of manufacturing the same. In the present invention, a wire grid polarizing pattern is formed on at least one of thin film transistor and color filter substrates in a manufacturing process thereof. According to the present invention, the thickness of an LCD panel can be reduced as compared with a method of attaching an existing polarizer to an LCD panel, and the wire grid polarizing pattern can be built in an LCD panel without increasing the number of masking processes.Type: GrantFiled: October 25, 2007Date of Patent: December 20, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dae Ho Choo, Yang Suk Ahn, Yeong Hee Yu
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Patent number: 8071951Abstract: In a method of driving an x-ray detector having a switching device connected to a light detecting pixel comprising a photodiode which detects an x-ray emitted from an x-ray generator and outputs an electrical signal corresponding to the x-ray, the method includes: receiving an x-ray with the photodiode during an x-ray detecting period to generate the electrical signal corresponding to the x-ray; turning on the switching device using a gate signal during a first gate turn-on period to transmit the electrical signal to an external component; providing a light to the photodiode during a first flash period of an offset control period; and turning on the switching device during a second gate turn-on period of the offset control period during which the light is not provided to the photodiode to maintain an electric potential at a coupling node disposed between the photodiode and the switching device at a predetermined level.Type: GrantFiled: March 24, 2009Date of Patent: December 6, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Kwan-Wook Jung, Kyung-Sang Goo, Dae-Ho Choo
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Patent number: 8067745Abstract: An X-ray detector includes; a panel having a plurality of photo-detecting pixels generating electrical signals in response to the detection of X-rays, a gate driver providing a gate signal to the plurality of photo-detecting pixels, wherein the photo-detecting pixels output the electrical signals in response to the gate signal, a readout integrated circuit reading out the electrical signal in response to the gate signal, a main board including a controller receiving the electrical signal and converting the electrical signal to an image signal, a film attached to the panel and the main board, the film including a signal line electrically connecting the readout integrated circuit to the panel and main board, wherein the readout integrated circuit is mounted on the film, and a shielding layer covering the film and comprising a conductive material, wherein the shielding layer prevents externally applied electromagnetic signals from passing through the film.Type: GrantFiled: January 15, 2009Date of Patent: November 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Kwan-Wook Jung, Kyung-Sang Goo, Dae-Ho Choo
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Patent number: 8044362Abstract: An x-ray detector including an array substrate including blocks extending along the array substrate in a first direction. Each of the blocks includes cells that are each associated with a data line extending in parallel with the first direction and a gate line extending perpendicularly to the first direction such that the data line crosses the gate line, a thin film transistor respectively connected to the gate and data lines, and a photodiode connected to the thin film transistor to receive light. The cells store charges corresponding to an amount of the light. Gate drivers are connected to ends of the gate lines to select rows of the cells associated with each of the gate lines. Read-out circuits are connected to ends of the data lines to read out charges stored in the cells, of each of the selected rows, that are respectively associated with each of the data lines.Type: GrantFiled: October 3, 2008Date of Patent: October 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-Sang Goo, Dae-Ho Choo, Kwan-Wook Jung
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Patent number: 8026987Abstract: According to an embodiment of the present invention a panel assembly includes a first display panel having a first insulation substrate, a second display panel having a second insulation substrate opposite to the first insulation substrate, and a touch sensing unit formed on a surface of the second insulation substrate not facing the first insulation substrate. The touch sensing unit includes an electrostatic induction insulating layer formed on the second insulation substrate, an electrostatic induction pattern layer formed on the electrostatic induction insulating layer along edges of the electrostatic induction insulating layer, and a dielectric layer that covers the electrostatic induction insulating layer and the electrostatic induction pattern layer.Type: GrantFiled: May 15, 2007Date of Patent: September 27, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-Ho Choo, Ho-Min Kang
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Patent number: 8023095Abstract: A method of manufacturing a liquid crystal display is provided, which includes: forming a sealant on a first panel; dropping liquid crystal on the first panel to form a plurality of liquid crystal dots; assembling a second panel with the first panel, wherein the first and the second panels have a striped array of pixel areas, each stripe extending in a first direction, and a first distance in the first direction between the liquid crystal dots is equal to or smaller than a second distance in a second direction perpendicular to the first direction between the liquid crystal dots.Type: GrantFiled: January 9, 2008Date of Patent: September 20, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-Ho Choo, Suk Ki
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Patent number: 8023188Abstract: In a method of transforming light, an optical film for performing the method and a display device having the optical film, an optical film includes an anisotropic film, an isotropic film, a ?/4 phase difference film and a ?/2 phase difference film. The anisotropic film having a first refractive index with respect to a first ray and a second refractive index with respect to a second ray. A refractive index of the isotropic film is substantially identical to the first refractive index. The ?/4 phase difference film delays wavelengths of the first and second rays by about ?/4. The ?/2 phase difference film delays the wavelength of the second ray by about ?/2.Type: GrantFiled: July 7, 2008Date of Patent: September 20, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-Ho Choo, Jin-Hyuk Yun, Ho-Min Kang
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Patent number: 7985954Abstract: An X-ray detector includes a plurality of bias connection lines that connect both ends, respectively, of a bias line for applying a bias voltage to a PIN diode. The bias line includes first and second bias lines.Type: GrantFiled: August 6, 2009Date of Patent: July 26, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Kwan-Wook Jung, Dae-Ho Choo
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Patent number: 7951527Abstract: A method of forming a wire grid polarizing pattern across the relatively large surface area of a display substrate includes using a nano imprint lithograph process wherein wire grid polarizing patterns are formed by bonding a stamp having a stamping area substantially smaller than that of the substrate with successive reticle areas of the substrate, where the substrate has a photosensitive film deposited thereon and where the stamping is such that recesses having a predetermined depth are formed in the photosensitive film, and then filling the recesses with an insulating film and etching it using the insulating film as a mask. Since mechanical misalignment margin is acceptable from one reticle area to the next, a wire grid polarizing pattern with a uniform line width and spacings in each reticle area can be formed on a substrate having a large area.Type: GrantFiled: October 25, 2007Date of Patent: May 31, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dae Ho Choo, Yeon Hee Yu, Hong Gyun Kim
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Publication number: 20110107593Abstract: A display device is provided with a touch panel includes: a base substrate; a first transparent electrode layer located on the base substrate; an ultrasonic wave guiding layer located on the first transparent electrode layer; a second transparent electrode layer located on the ultrasonic wave guiding layer; an ultrasonic wave transmitting unit and an ultrasonic wave receiving unit located on the second transparent electrode layer; and a protecting layer located on the second transparent electrode layer.Type: ApplicationFiled: January 21, 2011Publication date: May 12, 2011Inventors: Dae-Ho Choo, Ho-Min Kang
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Patent number: 7929079Abstract: A method for manufacturing a polarizer includes forming a conductive thin film layer on a first surface of a substrate. The conductive thin film layer corresponding to a processing line is partially removed by a treatment laser beam irradiated along the processing line. The removing the conductive thin film layer forms a plurality of groove lines on a portion of the substrate from which the conductive thin film is removed and a plurality of striped lines formed on a portion of the substrate on which the conductive thin film remains between the groove lines.Type: GrantFiled: June 5, 2007Date of Patent: April 19, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Dae-Ho Choo
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Patent number: 7915595Abstract: Disclosed is an X-ray detector and a method of manufacturing the X-ray detector. A cushion layer is interposed between a scintillator panel for converting X-rays into visual light and a lower substrate formed with a thin film transistor, a photoelectric conversion device. Thus, the lower substrate and the scintillator panel can be bonded to each other such that no air layer can be introduced between the lower substrate and the scintillator panel. Therefore, no air layer is introduced, and thus, it is possible to prevent the efficiency of light incident to the photoelectric conversion device from being lowered. Further, the cushion layer is employed such that the lower substrate and the scintillator panel can be separated and reused.Type: GrantFiled: July 21, 2008Date of Patent: March 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Cheol Kim, Dae-Ho Choo, Kwan-Wook Jung
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Patent number: 7845306Abstract: In a method of manufacturing an LCD device, an atomic beam is irradiated onto a thin film including a carbon-carbon double bond to form a polarized functional group by transforming the carbon-carbon double bond into a carbon-carbon single bond and a radical state. Then, a polarity preserving material is combined with the polarized functional group so as to preserve a polarity of the polarized functional group. According to the present invention, the alignment film is formed on the thin film transistor unit cell and on the color filter unit cell by a non-contact method. Therefore, time of forming the alignment film is reduced and alignment of the liquid crystal molecules is improved.Type: GrantFiled: April 28, 2008Date of Patent: December 7, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-Ho Choo, Hak-Jin Kim, Bong-Woo Lee
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Patent number: 7773175Abstract: A display device includes a substrate, a first color filter pixel and a second color filter pixel. The substrate includes a first pixel region and a second pixel region adjacent to the first pixel region for displaying an image. The first color filter pixel is formed in the first pixel region to change a white light into a colored light. The first color filter pixel includes a first color layer, and a second color layer on the first color layer. The second color filter pixel is formed in the second pixel region.Type: GrantFiled: June 29, 2006Date of Patent: August 10, 2010Assignee: Samsung Electronics Co. Ltd.Inventors: Sung-Hwan Cho, Dae-Ho Choo
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Patent number: 7767974Abstract: In a thin-film transistor (“TFT”) array substrate for an X-ray detector and an X-ray detector having the TFT array substrate, the TFT array substrate includes a gate wiring, a gate insulating layer, an active layer, a data wiring, a photodiode, an organic insulating layer and a bias wiring. The gate wiring is formed on an insulating substrate and includes a gate line and a gate electrode. The gate insulating layer covers the gate wiring. The active layer is formed on the gate insulating layer. The data wiring is formed on the gate insulating layer and includes a data line, source and drain electrodes. The photodiode includes lower and upper electrodes, and a photoconductive layer. The organic insulating layer covers the data wiring and the photodiode. The bias wiring is formed on the organic insulating layer. Thus, an aperture ratio and reliability are enhanced.Type: GrantFiled: June 10, 2008Date of Patent: August 3, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Kwan-Wook Jung, Dae-Ho Choo