Patents by Inventor Eun-ah Song
Eun-ah Song 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: 11342389Abstract: A display panel, a display device comprising the display panel, and a method for detecting a defect thereof are provided. The method can include preparing the display panel including a first sensing pattern connected to a touch sensor and a second sensing pattern extended from a light emitting device in an active area of the display panel to a non-active area of the display panel, wherein at least one of the first sensing pattern and the second sensing pattern protrudes farther than an end of an encapsulation stack, and the encapsulation stack covers a second electrode of the light emitting device in the active area; detecting a parasitic capacitance between the touch sensor and the second electrode in the active area; comparing the parasitic capacitance with a designated value; and determining that the display panel is defective based on a result of the comparing.Type: GrantFiled: April 23, 2021Date of Patent: May 24, 2022Assignee: LG DISPLAY CO., LTD.Inventor: Eun-Ah Song
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Publication number: 20210242286Abstract: A display panel, a display device comprising the display panel, and a method for detecting a defect thereof are provided. The method can include preparing the display panel including a first sensing pattern connected to a touch sensor and a second sensing pattern extended from a light emitting device in an active area of the display panel to a non-active area of the display panel, wherein at least one of the first sensing pattern and the second sensing pattern protrudes farther than an end of an encapsulation stack, and the encapsulation stack covers a second electrode of the light emitting device in the active area; detecting a parasitic capacitance between the touch sensor and the second electrode in the active area; comparing the parasitic capacitance with a designated value; and determining that the display panel is defective based on a result of the comparing.Type: ApplicationFiled: April 23, 2021Publication date: August 5, 2021Applicant: LG Display Co., Ltd.Inventor: Eun-Ah SONG
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Patent number: 11018203Abstract: A display panel, a display device comprising the display panel, and a method for detecting a defect thereof are provided. The display panel includes a touch sensor having at least one defect detection pattern to detect a defect by changing the configuration of an array. Thereby, a defect detection at the outside of the array can be easily accomplished.Type: GrantFiled: December 18, 2019Date of Patent: May 25, 2021Assignee: LG DISPLAY CO., LTD.Inventor: Eun-Ah Song
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Publication number: 20200212114Abstract: A display panel, a display device comprising the display panel, and a method for detecting a defect thereof are provided. The display panel includes a touch sensor having at least one defect detection pattern to detect a defect by changing the configuration of an array. Thereby, a defect detection at the outside of the array can be easily accomplished.Type: ApplicationFiled: December 18, 2019Publication date: July 2, 2020Applicant: LG Display Co., Ltd.Inventor: Eun-Ah SONG
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Patent number: 10431773Abstract: Provided is an organic light emitting display device. The organic light emitting display device includes a substrate, an organic light emitting element on the substrate, a first encapsulation layer on the substrate and the organic light emitting element to seal the organic light emitting element, a second encapsulation layer on the first encapsulation layer, a particle cover layer on the second encapsulation layer corresponding to at least an organic light emitting element area, and a third encapsulation layer on the second encapsulation layer and the particle cover layer. The first encapsulation layer and the second encapsulation layer are different from each other in surface energy. When the particle cover layer is coated, the second encapsulation layer may have a higher spreadability. Thus, it is possible to improve scan mura or defect.Type: GrantFiled: August 4, 2017Date of Patent: October 1, 2019Assignee: LG Display Co., Ltd.Inventors: Eun Ah Song, Hyun Tae Byun, Jung Gi Kim, Kwang Nam Cho
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Publication number: 20180076417Abstract: Provided is an organic light emitting display device. The organic light emitting display device includes a substrate, an organic light emitting element on the substrate, a first encapsulation layer on the substrate and the organic light emitting element to seal the organic light emitting element, a second encapsulation layer on the first encapsulation layer, a particle cover layer on the second encapsulation layer corresponding to at least an organic light emitting element area, and a third encapsulation layer on the second encapsulation layer and the particle cover layer. The first encapsulation layer and the second encapsulation layer are different from each other in surface energy. When the particle cover layer is coated, the second encapsulation layer may have a higher spreadability. Thus, it is possible to improve scan mura or defect.Type: ApplicationFiled: August 4, 2017Publication date: March 15, 2018Inventors: Eun Ah SONG, Hyun Tae BYUN, Jung Gi KIM, Kwang Nam CHO
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Patent number: 9270867Abstract: An image compensating apparatus includes an input unit to receive input of an photo image, a Gaussian filtering unit to perform Gaussian filtering on the photo image, a division-map generating unit to convert the photo image on which the Gaussian filtering is performed into a color space including a plurality of color components and then generating a chromaticity division-map based on a color coordinate value in the color space, a calculating unit to calculate average chromaticity of each respective region by using the chromaticity division-map, and a compensating unit to compensate chromaticity of each respective region of the photo image by using the average chromaticity of each respective region. Accordingly, a faded image input to the input unit may effectively be compensated.Type: GrantFiled: December 22, 2011Date of Patent: February 23, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyeong-man Kim, Hyun-cheol Kim, Min-ki Cho, Hyun-soo Oh, Eun-ah Song, Yeong-ho Ha, Dae-chul Kim, Wang-jun Kyung
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Patent number: 9203051Abstract: Disclosed is an organic light emitting display (OLED) apparatus that includes a substrate; an organic light emitting element on the substrate, the organic light emitting element including a first electrode, an organic light emitting layer and a second electrode; a viscoelastic layer on the organic light emitting element, wherein an elastic portion of the viscoelastic layer is about 30% or more, the elastic portion being defined by <Equation 1>: Elastic portion (Ep) (%)=(?/?0)×100, wherein ?0 is an initial stress generated when a strain of about 50% is applied to the viscoelastic layer and ? is a final stress measured after the strain is continuously applied thereto for about 180 seconds, with the initial stress ?0 and the final stress ? being measured at about 80° C. through a relaxation modulus test.Type: GrantFiled: November 7, 2014Date of Patent: December 1, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Hyun Tae Byun, Eun Ah Song, Hee Chul Lim
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Patent number: 9098792Abstract: A print controlling apparatus includes a storage to store a plurality of color feature information, an acquirer to acquire color feature information of a second image forming apparatus, a moderator to moderate color converting table of a first image forming apparatus by using the acquired color feature information and the plurality of color feature information stored in the storage, and a controller to perform printing jobs regarding the first image forming apparatus by using the moderated color converting table.Type: GrantFiled: December 9, 2013Date of Patent: August 4, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-min Shin, Nam-ju Shin, Hyun-soo Oh, Woo-jun Chung, Kyeong-man Kim, Eun-ah Song
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Publication number: 20150144909Abstract: Disclosed is an organic light emitting display (OLED) apparatus that includes a substrate; an organic light emitting element on the substrate, the organic light emitting element including a first electrode, an organic light emitting layer and a second electrode; a viscoelastic layer on the organic light emitting element, wherein an elastic portion of the viscoelastic layer is about 30% or more, the elastic portion being defined by <Equation 1>: Elastic portion (Ep) (%)=(?/?0)×100, wherein ?0 is an initial stress generated when a strain of about 50% is applied to the viscoelastic layer and ? is a final stress measured after the strain is continuously applied thereto for about 180 seconds, with the initial stress ?0 and the final stress ? being measured at about 80° C. through a relaxation modulus test.Type: ApplicationFiled: November 7, 2014Publication date: May 28, 2015Inventors: Hyun Tae BYUN, Eun Ah SONG, Hee Chul LIM
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Publication number: 20140168674Abstract: A print controlling apparatus includes a storage to store a plurality of color feature information, an acquirer to acquire color feature information of a second image forming apparatus, a moderator to moderate color converting table of a first image forming apparatus by using the acquired color feature information and the plurality of color feature information stored in the storage, and a controller to perform printing jobs regarding the first image forming apparatus by using the moderated color converting table.Type: ApplicationFiled: December 9, 2013Publication date: June 19, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Jae-min SHIN, Nam-ju SHIN, Hyun-soo OH, Woo-jun CHUNG, Kyeong-man KIM, Eun-ah SONG
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Patent number: 8526608Abstract: A printing system and printer with an electronic signature capability, and a method thereof are provided. To print security documents using an electronic signature stored in a portable memory, the printing system of the invention includes a portable memory for storing an electronic signature. A memory interface connects detachably to the portable memory. A printer receives the electronic signature from the memory interface, composes the received electronic signature with print data, and executes a print operation. Accordingly, a stamping or signature process on numerous documents can be facilitated, and excessive stamping or signature execution can be prevented. Moreover, the electronic signature of the invention can be executed on various types of forms or documents.Type: GrantFiled: March 9, 2011Date of Patent: September 3, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Eun-ah Song, Hyun-sun Jung, Yong-geun Kim
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Publication number: 20120262473Abstract: An image compensating apparatus includes an input unit to receive input of an photo image, a Gaussian filtering unit to perform Gaussian filtering on the photo image, a division-map generating unit to convert the photo image on which the Gaussian filtering is performed into a color space including a plurality of color components and then generating a chromaticity division-map based on a color coordinate value in the color space, a calculating unit to calculate average chromaticity of each respective region by using the chromaticity division-map, and a compensating unit to compensate chromaticity of each respective region of the photo image by using the average chromaticity of each respective region. Accordingly, a faded image input to the input unit may effectively be compensated.Type: ApplicationFiled: December 22, 2011Publication date: October 18, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Kyeong-man KIM, Hyun-Cheol Kim, Min-ki Cho, Hyun-soo Oh, Eun-ah Song, Yeong-ho Ha, Dae-chul Kim, Wang-jun Kyung
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Publication number: 20110164289Abstract: A printing system and printer with an electronic signature capability, and a method thereof are provided. To print security documents using an electronic signature stored in a portable memory, the printing system of the invention includes a portable memory for storing an electronic signature. A memory interface connects detachably to the portable memory. A printer receives the electronic signature from the memory interface, composes the received electronic signature with print data, and executes a print operation. Accordingly, a stamping or signature process on numerous documents can be facilitated, and excessive stamping or signature execution can be prevented. Moreover, the electronic signature of the invention can be executed on various types of forms or documents.Type: ApplicationFiled: March 9, 2011Publication date: July 7, 2011Inventors: Eun-ah Song, Hyun-sun Jung, Yong-geun Kim
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Patent number: 7929695Abstract: A printing system and printer with an electronic signature capability, and a method thereof are provided. To print security documents using an electronic signature stored in a portable memory, the printing system of the invention includes a portable memory for storing an electronic signature. A memory interface connects detachably to the portable memory. A printer receives the electronic signature from the memory interface, composes the received electronic signature with print data, and executes a print operation. Accordingly, a stamping or signature process on numerous documents can be facilitated, and excessive stamping or signature execution can be prevented. Moreover, the electronic signature of the invention can be executed on various types of forms or documents.Type: GrantFiled: April 7, 2006Date of Patent: April 19, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Eun-ah Song, Hyun-sun Jung, Yong-geun Kim
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Patent number: 7248811Abstract: An oxidation catalyst unit for a wet-type electrophotographic image forming apparatus which oxidizes a carrier vapor generated in a fusing unit and method for controlling the same are provided. The wet-type electrophotographic image forming apparatus includes a photoconductive medium, a laser scanning unit scans a laser beam onto the photoconductive medium, a developing unit develops a developer on the photoconductive medium, a transfer unit transfers the developer on the photoconductive medium to a recording medium, a fusing unit fixes the developer on the recording medium, and an oxidation catalyst unit oxidizes and resolves a carrier vapor generated in the fusing unit. The oxidation catalyst unit comprises a duct connected to the fusing unit to guide the carrier vapor generated in the fusing unit into the oxidation catalyst unit, a fan for guiding the carrier vapor into the duct, and a controller for varying a velocity of the fan according to data.Type: GrantFiled: October 19, 2004Date of Patent: July 24, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Eun-Ah Song, Kwoang-Joe Seorl, Jung-Han Lee
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Publication number: 20070019809Abstract: A printing system and printer with an electronic signature capability, and a method thereof are provided. To print security documents using an electronic signature stored in a portable memory, the printing system of the invention includes a portable memory for storing an electronic signature. A memory interface connects detachably to the portable memory. A printer receives the electronic signature from the memory interface, composes the received electronic signature with print data, and executes a print operation. Accordingly, a stamping or signature process on numerous documents can be facilitated, and excessive stamping or signature execution can be prevented. Moreover, the electronic signature of the invention can be executed on various types of forms or documents.Type: ApplicationFiled: April 7, 2006Publication date: January 25, 2007Inventors: Eun-ah Song, Hyun-sun Jung, Yong-geun Kim
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Patent number: 7054569Abstract: A wet electrophotographic image forming machine that informs a user of a timing for replacing development cartridges. The image forming machine comprises a control section for sensing the condition of the developer stored in one or more developer housings on the basis of a measured electric current flowing between one or more developer feeding members and one or more developer application members via the developer provided therebetween, and a display section for externally displaying the developer condition according to a signal from the control section. The control section evaluates the magnitude of the electric current and provides a signal to the control section for display if there is a developer amount or concentration deficiency.Type: GrantFiled: February 4, 2004Date of Patent: May 30, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Joong-gwang Shin, Geun-yong Park, Eun-ah Song, Jong-woo Kim
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Publication number: 20060056882Abstract: A color registration control method and an image forming apparatus using the same are provided, wherein the color registration control method includes the steps of developing a registration pattern by overlapping a first pattern and a second pattern each of which having a length in a sub-scanning direction, detecting the densities of an upper pattern and a lower pattern included in the registration pattern, comparing the density of the upper pattern with the density of the lower pattern and generating density information, and outputting a registration control signal by referring to the offset information and the density information.Type: ApplicationFiled: June 27, 2005Publication date: March 16, 2006Inventors: Gu-dal Kwon, Eun-ah Song
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Publication number: 20050238381Abstract: An oxidation catalyst unit for a wet-type electrophotographic image forming apparatus which oxidizes a carrier vapor generated in a fusing unit. The wet-type electrophotographic image forming apparatus comprises a photoconductive medium, a laser scanning unit scans a laser beam onto the photoconductive medium, a developing unit develops a developer on the photoconductive medium, a transfer unit transfers the developer on the photoconductive medium to a recording medium, a fusing unit fixes the developer on the recording medium, and an oxidation catalyst unit oxidizes and resolves a carrier vapor generated in the fusing unit. The oxidation catalyst unit comprises a duct connected to the fusing unit to guide the carrier vapor generated in the fusing unit into the oxidation catalyst unit, a fan for guiding the carrier vapor into the duct, and a controller for varying a velocity of the fan according to data.Type: ApplicationFiled: October 19, 2004Publication date: October 27, 2005Inventors: Eun-Ah Song, Kwoang-Joe Seorl, Jung-Han Lee