Patents by Inventor Byung-chul Ahn
Byung-chul Ahn 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: 20230125824Abstract: The present invention provides a method of producing a serum containing protective antibodies with mucosal immunity, a PAMI serum, against mucosa-related infectious pathogens from an adult pig or cattle comprising a step of administering the mucosa-related infectious pathogens to the adult pig or cattle via a mucosal route such as oral or nasal administration; and a method of preventing and/or treating mucosal infectious diseases in piglets and calves by orally or intravenously administering the PAMI serum produced by the method above to piglets or calves. In experiments conducted by the method of the present invention, piglets and young calves were successfully prevented and/or treated from infection with mucosa-related infectious pathogens.Type: ApplicationFiled: November 13, 2020Publication date: April 27, 2023Inventor: Byung Chul AHN
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Patent number: 11201198Abstract: Display devices and, in particular, electroluminescent display devices including a lower structure of a bank causing a highly conductive hole injection layer to take on a shape so as to reduce a leakage current, and a method for manufacturing the same are described. An electroluminescent display device includes a substrate having a plurality of pixels, a bank located at a boundary between the subpixels, a first electrode in each subpixel, a separation induction layer between the bank and the first electrode, a p-type layer with a first portion on the bank and a second portion on an emission assembly of the subpixels, and at least one common layer on the p-type layer.Type: GrantFiled: December 19, 2019Date of Patent: December 14, 2021Assignee: LG Display Co., Ltd.Inventors: Byung-Chul Ahn, Woo-Chan Kim, Byeong-Sun Yoo, Go-Tae Kim
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Publication number: 20200212144Abstract: Display devices and, in particular, electroluminescent display devices including a lower structure of a bank causing a highly conductive hole injection layer to take on a shape so as to reduce a leakage current, and a method for manufacturing the same are described. An electroluminescent display device includes a substrate having a plurality of pixels, a bank located at a boundary between the subpixels, a first electrode in each subpixel, a separation induction layer between the bank and the first electrode, a p-type layer with a first portion on the bank and a second portion on an emission assembly of the subpixels, and at least one common layer on the p-type layer.Type: ApplicationFiled: December 19, 2019Publication date: July 2, 2020Inventors: Byung-Chul AHN, Woo-Chan KIM, Byeong-Sun YOO, Go-Tae KIM
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Patent number: 9997740Abstract: Discussed is a method for manufacturing an organic light emitting display device including forming a first electrode on a predetermined region of a substrate; forming an organic light emitting layer on the first electrode; forming a second electrode on the substrate including the organic light emitting layer; and bonding an encapsulation substrate to the substrate so as to electrically connect the encapsulation substrate and the second electrode to each other.Type: GrantFiled: June 29, 2016Date of Patent: June 12, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Byung Chul Ahn, Bong geum Lee
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Publication number: 20160308172Abstract: Discussed is a method for manufacturing an organic light emitting display device including forming a first electrode on a predetermined region of a substrate; forming an organic light emitting layer on the first electrode; forming a second electrode on the substrate including the organic light emitting layer; and bonding an encapsulation substrate to the substrate so as to electrically connect the encapsulation substrate and the second electrode to each other.Type: ApplicationFiled: June 29, 2016Publication date: October 20, 2016Applicant: LG DISPLAY CO., LTD.Inventors: Byung Chul AHN, Bong geum LEE
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Patent number: 9472786Abstract: Discussed is an organic light emitting display device which prevents a voltage drop, wherein the light emitting display device includes a substrate; a first electrode on the substrate; an organic light emitting layer on the first electrode; a second electrode on the substrate including the organic light emitting layer; and an encapsulation substrate confronting the substrate, wherein the encapsulation substrate is formed of a metal material, and is electrically connected with the second electrode.Type: GrantFiled: October 25, 2013Date of Patent: October 18, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Byung Chul Ahn, Bong Geum Lee
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Patent number: 9304397Abstract: Disclosed is a method of manufacturing an organic light emitting display device. The method include forming a driving thin film transistor and passivation layer on a substrate, forming a bank layer at a boundary portion between adjacent sub-pixels, on the passivation layer, laminating a first photoresist film on the bank layer, forming a first photoresist pattern by irradiating IR light on the first photoresist film in an area except a first sub-pixel, depositing a first organic emission layer in the first sub-pixel area exposed by the first photoresist pattern, removing the first photoresist pattern, laminating a second photoresist film on the bank layer, forming a second photoresist pattern by irradiating IR light on the second photoresist film in an area except a second sub-pixel, depositing a second organic emission layer in the second sub-pixel area exposed by the second photoresist pattern, and removing the second photoresist pattern.Type: GrantFiled: December 26, 2012Date of Patent: April 5, 2016Assignee: LG Display Co., Ltd.Inventors: Wy-Yong Kim, Byung Chul Ahn, Gee Sung Chae, Jin Wuk Kim, Yoon Heung Tak
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Patent number: 9209414Abstract: A display device is discussed which can include: a flexible substrate defined into a first area, a second area bent from an edge of the first area, and a third area outwardly expanded from the second area; a thin film transistor layer disposed on the substrate; an organic emission layer disposed on the thin film transistor layer; an encapsulation layer disposed on the organic emission layer; a polarization layer disposed on the encapsulation layer; and a cover window disposed on the polarization layer. The polarization layer is formed on the encapsulation layer opposite to the first and third areas of the substrate.Type: GrantFiled: November 24, 2014Date of Patent: December 8, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Yu Sok Lim, Byung Chul Ahn, Chang Dong Kim, Tae Joon Ahn, Sang Moo Song
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Patent number: 9135862Abstract: Disclosed is an organic light emitting display device, which is capable of compensating for variations in the characteristics of driving transistors, comprising a display panel including a plurality of pixels, each pixel having a driving transistor for operating a light emitting device to make the light emitting device emit light with a data current corresponding to a data voltage; a panel driver for detecting the characteristics of the driving transistors including at least one of mobility and threshold voltage of the driving transistor included in each pixel during a time period when there exists no user around the display panel, generating compensated input data by compensating input data according to the characteristics after the detection of the characteristics is completed, and generating data voltage through the use of the compensated input data; and a sensor for sensing whether or not there exists a user around the display panel, and supplying the sensing result to the panel driver.Type: GrantFiled: August 2, 2013Date of Patent: September 15, 2015Assignee: LG Display Co., Ltd.Inventors: Jeong Hyo Park, Byung Chul Ahn, Ho Min Lim
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Patent number: 9048204Abstract: An organic electroluminescent display device is disclosed which includes: a lower substrate including a first substrate defined into red, green and blue sub-pixel regions, first and second switching elements formed in the red and green sub-pixel regions, first and second anodes each connected to the first and second switching elements, and a first organic light emission layer entirely formed on the first substrate provided with the first and second anodes; and an upper substrate including a second substrate, red and green color filter layers formed on the second substrate corresponding to the red and green sub-pixel regions, a third switching element formed on the second substrate corresponding to the blue sub-pixel region, a third anode connected to the third switching element, and a second organic light emission layer entirely formed on the second substrate provided with the red and green color filter layers and the third anode.Type: GrantFiled: October 21, 2014Date of Patent: June 2, 2015Assignee: LG Display Co., Ltd.Inventors: Woo Chan Kim, Byung Chul Ahn, Hong Ki Park, Hyo Dae Bae, Yoon Heung Tak, Sung Goo Jung
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Publication number: 20150144921Abstract: A display device is discussed which can include: a flexible substrate defined into a first area, a second area bent from an edge of the first area, and a third area outwardly expanded from the second area; a thin film transistor layer disposed on the substrate; an organic emission layer disposed on the thin film transistor layer; an encapsulation layer disposed on the organic emission layer; a polarization layer disposed on the encapsulation layer; and a cover window disposed on the polarization layer. The polarization layer is formed on the encapsulation layer opposite to the first and third areas of the substrate.Type: ApplicationFiled: November 24, 2014Publication date: May 28, 2015Applicant: LG DISPLAY CO., LTD.Inventors: Yu Sok LIM, Byung Chul AHN, Chang Dong KIM, Tae Joon AHN, Sang Moo SONG
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Patent number: 9040979Abstract: An organic electroluminescent display device is disclosed which includes a lower substrate including a first substrate defined into red, green and blue sub-pixel regions, first and second switching elements formed in the red and green sub-pixel regions, first and second anodes each connected to the first and second switching elements, and a first organic light emission layer entirely formed on the first substrate provided with the first and second anodes; and an upper substrate including a second substrate, red and green color filter layers formed on the second substrate corresponding to the red and green sub-pixel regions, a third switching element formed on the second substrate corresponding to the blue sub-pixel region, a third anode connected to the third switching element, and a second organic light emission layer entirely formed on the second substrate provided with the red and green color filter layers and the third anode.Type: GrantFiled: October 21, 2014Date of Patent: May 26, 2015Assignee: LG Display Co., Ltd.Inventors: Woo Chan Kim, Byung Chul Ahn, Hong Ki Park, Hyo Dae Bae, Yoon Heung Tak, Sung Goo Jung
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Publication number: 20150069369Abstract: An organic electroluminescent display device is disclosed which includes a lower substrate including a first substrate defined into red, green and blue sub-pixel regions, first and second switching elements formed in the red and green sub-pixel regions, first and second anodes each connected to the first and second switching elements, and a first organic light emission layer entirely formed on the first substrate provided with the first and second anodes; and an upper substrate including a second substrate, red and green color filter layers formed on the second substrate corresponding to the red and green sub-pixel regions, a third switching element formed on the second substrate corresponding to the blue sub-pixel region, a third anode connected to the third switching element, and a second organic light emission layer entirely formed on the second substrate provided with the red and green color filter layers and the third anode.Type: ApplicationFiled: October 21, 2014Publication date: March 12, 2015Applicant: LG Display Co., Ltd.Inventors: Woo Chan KIM, Byung Chul AHN, Hong Ki PARK, Hyo Dae BAE, Yoon Heung TAK, Sung Goo JUNG
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Publication number: 20150060834Abstract: An organic electroluminescent display device is disclosed which includes: a lower substrate including a first substrate defined into red, green and blue sub-pixel regions, first and second switching elements formed in the red and green sub-pixel regions, first and second anodes each connected to the first and second switching elements, and a first organic light emission layer entirely formed on the first substrate provided with the first and second anodes; and an upper substrate including a second substrate, red and green color filter layers formed on the second substrate corresponding to the red and green sub-pixel regions, a third switching element formed on the second substrate corresponding to the blue sub-pixel region, a third anode connected to the third switching element, and a second organic light emission layer entirely formed on the second substrate provided with the red and green color filter layers and the third anode.Type: ApplicationFiled: October 21, 2014Publication date: March 5, 2015Applicant: LG DISPLAY CO., LTD.Inventors: Woo Chan KIM, Byung Chul AHN, Hong Ki PARK, Hyo Dae BAE, Yoon Heung TAK, Sung Goo JUNG
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Patent number: 8946722Abstract: An organic light emitting display device with enhanced luminous efficiency and color viewing angle and a method of manufacturing the same are disclosed. The method includes forming a first electrode of each of red, green, blue and white sub-pixels on a substrate, forming a white organic common layer on the first electrodes, and forming a second electrode on the white organic common layer, wherein the first electrodes each includes multiple transparent conductive layers and is formed such that a thickness of the first electrode of each of two sub-pixels among the red, green, blue and white sub-pixels is greater than a thickness of the first electrode of each of the other two sub-pixels, and at least two layers excluding the lowermost layer among the multiple transparent conductive layers of each first electrode are formed to cover opposite sides of the lowermost layer.Type: GrantFiled: December 23, 2013Date of Patent: February 3, 2015Assignee: LG Display Co., Ltd.Inventors: Seung-Hyun Kim, Byung-Chul Ahn, Chang-Wook Han, Hee-Suk Pang, Hong-Seok Choi, Yoon-Heung Tak, Mi-Young Han, Tae-Shick Kim
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Patent number: 8921860Abstract: An organic light emitting display device is provided to avoid color change due to a viewing direction. The organic light emitting display includes a light compensation layer having a refractive index different than that of an insulating layer. The organic light emitting display may be disposed at the side to which light emitted from an organic light emitting layer is entered to change the path and phase of light, thereby coinciding cavity peak phases for each wavelength of white light emitted from an organic light emitting unit.Type: GrantFiled: July 13, 2012Date of Patent: December 30, 2014Assignee: LG Display Co., Ltd.Inventors: Shin-Han Kim, Byung-Chul Ahn, Yoon-Heung Tak, Chang-Wook Han, Do-Hyung Kim, Jae-Man Lee, Hong-Seok Choi, Sung-Joon Bae, Seung-Ryong Joung
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Patent number: 8895967Abstract: An organic electroluminescent display device is disclosed which includes: a lower substrate including a first substrate defined into red, green and blue sub-pixel regions, first and second switching elements formed in the red and green sub-pixel regions, first and second anodes each connected to the first and second switching elements, and a first organic light emission layer entirely formed on the first substrate provided with the first and second anodes; and an upper substrate including a second substrate, red and green color filter layers formed on the second substrate corresponding to the red and green sub-pixel regions, a third switching element formed on the second substrate corresponding to the blue sub-pixel region, a third anode connected to the third switching element, and a second organic light emission layer entirely formed on the second substrate provided with the red and green color filter layers and the third anode.Type: GrantFiled: October 25, 2012Date of Patent: November 25, 2014Assignee: LG Display Co., Ltd.Inventors: Woo Chan Kim, Byung Chul Ahn, Hong Ki Park, Hyo Dae Bae, Yoon Heung Tak, Sung Goo Jung
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Patent number: RE45579Abstract: A thin-film transistor includes a substrate, and a gate including a double-layered structure having first and second metal layers provided on the substrate, the first metal layer being wider than the second metal layer by 1 to 4 ?m. A method of making such a thin-film transistor includes the steps of: depositing a first metal layer on a substrate, depositing a second metal layers directly on the first metal layer; forming a photoresist having a designated width on the second metal layer; patterning the second metal layer via isotropic etching using the photoresist as a mask; patterning the first metal layer by means of an anisotropic etching using the photoresist as a mask, the first metal layer being etched to have the designated width, thus forming a gate having a laminated structure of the first and second metal layers; and removing the photoresist.Type: GrantFiled: October 5, 2012Date of Patent: June 23, 2015Assignee: LG Display Co., Ltd.Inventors: Byung-Chul Ahn, Hyun-Sik Seo
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Patent number: RE45841Abstract: A thin-film transistor includes a substrate, and a gate including a double-layered structure having first and second metal layers provided on the substrate, the first metal layer being wider than the second metal layer by 1 to 4 ?m. A method of making such a thin-film transistor includes the steps of: depositing a first metal layer on a substrate, depositing a second metal layers directly on the first metal layer; forming a photoresist having a designated width on the second metal layer; patterning the second metal layer via isotropic etching using the photoresist as a mask; patterning the first metal layer by means of an anisotropic etching using the photoresist as a mask, the first metal layer being etched to have the designated width, thus forming a gate having a laminated structure of the first and second metal layers; and removing the photoresist.Type: GrantFiled: October 5, 2012Date of Patent: January 12, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Byung-Chul Ahn, Hyun-Sik Seo
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Patent number: RE47544Abstract: Provided are a method of manufacturing an organic light emitting display device and an organic light emitting display device manufactured by the method. The method includes calculating a peak-luminance current density for each of a red sub-pixel, a blue sub-pixel, a green sub-pixel, and a white sub-pixel, calculating an average use current density for each of the red sub-pixel, blue sub-pixel, green sub-pixel, and white sub-pixel; determining a size of each sub-pixel with the peak-luminance current density and the average use current density, and forming the sub-pixels with the determined sizes of the respective sub-pixels. The present invention sets the size of each sub-pixel in consideration of a peak-luminance current density and an average use current density, thus easily achieving the peak luminance and enhancing the color-coordinate life.Type: GrantFiled: June 30, 2016Date of Patent: July 30, 2019Assignee: LG Display Co., Ltd.Inventors: Hwa Kyung Kim, Byung Chul Ahn, Chang Wook Han, Woo Jin Nam, Hong Seok Choi, Yoon Heung Tak, Shinji Takasugi