Patents by Inventor Byung Chun Lee
Byung Chun Lee 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: 10406557Abstract: A curing apparatus and a curing method are provided. The curing apparatus comprises: a chamber, configured for accommodating a substrate provided with a polyimide adhesive; an air extracting unit, configured for evacuating the chamber; and a heating unit, configured for performing a first heating on the substrate in the case that a first predetermined pressure is reached in the chamber during a evacuating process of the air extracting unit so as to remove organic gases from the polyimide adhesive, and performing a second heating on the substrate after the first heating so as to cure the polyimide adhesive.Type: GrantFiled: May 18, 2016Date of Patent: September 10, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Li Xiong, Zhong Lu, Wenxuan Zhang, Zhenrui Fan, Yu Zhang, Yu Zhang, Yuanjiang Yang, Donghua Jiang, Byung Chun Lee, Shengzhou Gao
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Patent number: 9728413Abstract: A method for preparing film patterns; firstly, a complementary film pattern (1) to a desired film pattern (201) is prepared on a substrate (3) with an erasable agent; secondly, a whole layer of film (2) is formed on the complementary film pattern (1); and thirdly, the desired film pattern (201) is obtained by removing the complementary film pattern (1). The preparation method can simplify the production process and reduce the production cost of the film patterns.Type: GrantFiled: December 4, 2013Date of Patent: August 8, 2017Assignees: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.Inventors: Yuqing Yang, Seung Yik Park, Byung Chun Lee
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Publication number: 20170087587Abstract: A curing apparatus and a curing method are provided. The curing apparatus comprises: a chamber, configured for accommodating a substrate provided with a polyimide adhesive; an air extracting unit, configured for evacuating the chamber; and a heating unit, configured for performing a first heating on the substrate in the case that a first predetermined pressure is reached in the chamber during a evacuating process of the air extracting unit so as to remove organic gases from the polyimide adhesive, and performing a second heating on the substrate after the first heating so as to cure the polyimide adhesive.Type: ApplicationFiled: May 18, 2016Publication date: March 30, 2017Inventors: Li XIONG, Zhong LU, Wenxuan ZHANG, Zhenrui FAN, Yu ZHANG, Yu ZHANG, Yuanjiang YANG, Donghua JIANG, Byung Chun LEE, Shengzhou GAO
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Patent number: 9564354Abstract: The present invention discloses a via-hole etching method related to semiconductor manufacturing field, and the method overcomes the defects of an uncontrollable end point of a via-hole and an unfavorable profile-angle in a conventional via-hole etching method. The via-hole etching method includes: forming a structure for via-hole etching, includes: a low-temperature poly-silicon layer, a gate insulating layer, a gate metal layer and an interlayer insulating layer, which are sequentially formed on a substrate; forming a mask layer comprising a via-hole masking pattern on the structure for via-hole etching; by using a first etching process, etching the structure for via-hole etching to a first thickness of the gate insulating layer; by using a second etching process, etching the structure for via-hole etching to etch away the remaining thickness of the gate insulating layer, and uncovering the low-temperature poly-silicon layer; removing the mask layer to form a via-hole structure.Type: GrantFiled: December 3, 2013Date of Patent: February 7, 2017Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Byung Chun Lee, Donghua Jiang, Yongyi Fu, Wuyang Zhao, Chundong Li
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Publication number: 20160260614Abstract: A method for preparing film patterns; firstly, a complementary film pattern (1) to a desired film pattern (201) is prepared on a substrate (3) with an erasable agent; secondly, a whole layer of film (2) is formed on the complementary film pattern (1); and thirdly, the desired film pattern (201) is obtained by removing the complementary film pattern (1). The preparation method can simplify the production process and reduce the production cost of the film patterns.Type: ApplicationFiled: December 4, 2013Publication date: September 8, 2016Applicants: Boe Technology Group Co., Ltd., Chengdu Boe Optoelectronics Technology Co., Ltd.Inventors: Yuqing YANG, Seung Yik PARK, Byung Chun LEE
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Patent number: 9240353Abstract: A method for manufacturing an array substrate includes: forming a shielding layer, an insulating buffer layer, active layers, a gate insulating layer and NMOS gate electrodes in a display area and a drive area on a substrate in sequence; forming a PMOS gate electrode in the drive area on the foregoing substrate, in which the NMOS gate electrodes and the PMOS gate electrode are provided on the same layer; meanwhile forming a first through hole in a common electrode connecting area, in which the first through hole is configured to connect the shielding layer and a source/drain electrode layer; forming an intermediate insulating layer on the foregoing substrate, forming a second through hole in the common electrode connecting area and third through holes in the display area and the drive area, in which the second through hole is formed at a same position as the first through hole and configured to connect the shielding layer and a source/drain electrode layer, and the third through holes are configured to connecType: GrantFiled: December 9, 2013Date of Patent: January 19, 2016Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yuqing Yang, Seung Yik Park, Byung Chun Lee
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Publication number: 20150303099Abstract: The present invention discloses a via-hole etching method related to semiconductor manufacturing field, and the method overcomes the defects of an uncontrollable end point of a via-hole and an unfavorable profile-angle in a conventional via-hole etching method. The via-hole etching method includes: forming a structure for via-hole etching, includes: a low-temperature poly-silicon layer, a gate insulating layer, a gate metal layer and an interlayer insulating layer, which are sequentially formed on a substrate; forming a mask layer comprising a via-hole masking pattern on the structure for via-hole etching; by using a first etching process, etching the structure for via-hole etching to a first thickness of the gate insulating layer; by using a second etching process, etching the structure for via-hole etching to etch away the remaining thickness of the gate insulating layer, and uncovering the low-temperature poly-silicon layer; removing the mask layer to form a via-hole structure.Type: ApplicationFiled: December 3, 2013Publication date: October 22, 2015Inventors: Byung Chun LEE, Donghua JIANG, Yongyi FU, Wuyang ZHAO, Chundong LI
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Publication number: 20150214120Abstract: A method for manufacturing an array substrate includes: forming a shielding layer, an insulating buffer layer, active layers, a gate insulating layer and NMOS gate electrodes in a display area and a drive area on a substrate in sequence; forming a PMOS gate electrode in the drive area on the foregoing substrate, in which the NMOS gate electrodes and the PMOS gate electrode are provided on the same layer; meanwhile forming a first through hole in a common electrode connecting area, in which the first through hole is configured to connect the shielding layer and a source/drain electrode layer; forming an intermediate insulating layer on the foregoing substrate, forming a second through hole in the common electrode connecting area and third through holes in the display area and the drive area, in which the second through hole is formed at a same position as the first through hole and configured to connect the shielding layer and a source/drain electrode layer, and the third through holes are configured to connecType: ApplicationFiled: December 9, 2013Publication date: July 30, 2015Inventors: Yuqing Yang, Seung Yik Park, Byung Chun Lee
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Patent number: 8633066Abstract: A thin film transistor is provided, which comprises at least an active layer, a source electrode and a drain electrode, wherein the source electrode and the drain electrode are located on the active layer and spaced apart from each other; a channel is defined in the active layer between the source electrode and the drain electrode; edges of the active layer are aligned with outer edges of the source electrode and the drain electrode, the outer edge of the source electrode is an edge of the source electrode opposite to the drain electrode, and the outer edge of the drain electrode is an edge of the drain electrode opposite to the source electrode. Also, a method of manufacturing a thin film transistor is provided.Type: GrantFiled: October 11, 2011Date of Patent: January 21, 2014Assignees: Boe Technology Group Co., Ltd., Chengdu Boe Optoelectronics Technology Co., Ltd.Inventors: Byung Chun Lee, Tai Sung Choi, Shuibin Ni, Pil Seok Kim
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Publication number: 20120086013Abstract: A thin film transistor is provided, which comprises at least an active layer, a source electrode and a drain electrode, wherein the source electrode and the drain electrode are located on the active layer and spaced apart from each other; a channel is defined in the active layer between the source electrode and the drain electrode; edges of the active layer are aligned with outer edges of the source electrode and the drain electrode, the outer edge of the source electrode is an edge of the source electrode opposite to the drain electrode, and the outer edge of the drain electrode is an edge of the drain electrode opposite to the source electrode. Also, a method of manufacturing a thin film transistor is provided.Type: ApplicationFiled: October 11, 2011Publication date: April 12, 2012Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Byung Chun LEE, Tai Sung CHOI, Shuibin NI, Pil Seok KIM
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Patent number: 6829241Abstract: The present invention relates to an AAL-2/AAL-5 processing apparatus which is capable of simultaneously processing AAL-2 and AAL-5 cells transmitted through multiple virtual channels between a base station (BTS) and a base station controller(BSC).Type: GrantFiled: September 12, 2000Date of Patent: December 7, 2004Assignee: LG Electronics Inc.Inventor: Byung Chun Lee