Patents by Inventor Hyun Woo Jang
Hyun Woo Jang 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: 20240086012Abstract: A display device having a touch sensor can include a display panel including a plurality of touch electrodes, and a readout integrated circuit (IC). Also, the readout IC is configured to apply a touch driving signal to the plurality of touch electrodes and amplify charges from the plurality touch electrodes according to an amplifier reset signal to generate an amplifier output voltage, and differentially adjust a toggle timing of the amplifier reset signal based on positions of the plurality of touch electrodes to control a level of the amplifier output voltage.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Applicant: LG Display Co., Ltd.Inventors: Hyun Woo JANG, Ki Yong KIM, Jae Kyu PARK, Young Woo JO
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Patent number: 11927890Abstract: A substrate processing apparatus includes a photoresist coater applying a photoresist film on a substrate, a humidifier increasing an amount of moisture in an ambient to which the photoresist film on the substrate is exposed, and an exposer irradiating the photoresist film exposed to the ambient having the increased amount of moisture with light. The humidifier is disposed between the photoresist coater and the exposer.Type: GrantFiled: August 22, 2022Date of Patent: March 12, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seok Heo, Cha Won Koh, Sang Joon Hong, Hyun Woo Kim, Kyung-Won Kang, Dong-Wook Kim, Kyung Won Seo, Young Il Jang, Yong Suk Choi
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Patent number: 11861108Abstract: A display device having a touch sensor of the present disclosure includes a display panel including a plurality of touch electrodes, a touch sensing circuit configured to apply a touch driving signal to the touch electrodes and amplify charges flowing from the touch electrodes based on an amplifier reset signal so as to generate an amplifier output voltage, and an amplifier output control circuit configured to adjust at least one of a toggle timing of the amplifier reset signal and a voltage amplitude of the touch driving signal so as to differentially control a level of the amplifier output voltage depending on positions of the touch electrodes.Type: GrantFiled: September 3, 2021Date of Patent: January 2, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Hyun Woo Jang, Ki Yong Kim, Jae Kyu Park, Young Woo Jo
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Publication number: 20220206626Abstract: A display device having a touch sensor of the present disclosure includes a display panel including a plurality of touch electrodes, a touch sensing circuit configured to apply a touch driving signal to the touch electrodes and amplify charges flowing from the touch electrodes based on an amplifier reset signal so as to generate an amplifier output voltage, and an amplifier output control circuit configured to adjust at least one of a toggle timing of the amplifier reset signal and a voltage amplitude of the touch driving signal so as to differentially control a level of the amplifier output voltage depending on positions of the touch electrodes.Type: ApplicationFiled: September 3, 2021Publication date: June 30, 2022Applicant: LG Display Co., Ltd.Inventors: Hyun Woo JANG, Ki Yong KIM, Jae Kyu PARK, Young Woo JO
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Publication number: 20220099870Abstract: Provided is a retroreflective structure and a light-emitting safety band using same. The retroreflective structure comprises: a switch unit for supplying power, a light source being connected to the switch unit; and a light-emitting unit coupled to the switch unit. The switch unit comprises: a middle plate case having a light transfer body insertion hole formed thereon; an upper plate case coupled to the upper portion of the middle plate case; and a PCB inserted into the middle plate case and the upper plate case. The light-emitting unit comprises: a lower retroreflective film; and a light transfer body installed to be forced against the upper portion of the retroreflective film. The light source is inserted into and installed in a light source insertion groove on an end of the light transfer body having a case engaging unit installed to engage with the light transfer body insertion hole.Type: ApplicationFiled: April 15, 2019Publication date: March 31, 2022Inventors: Tae Hoon JANG, Hyun Woo JANG
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Patent number: 10359830Abstract: Disclosed are an optical touch input device which divisionally adjusts optical output of a light emitting unit before and during a touch operation to reduce power consumption, and a driving method thereof, the optical touch input device includes a display panel, a plurality of infrared light emitting elements disposed on two adjacent sides of the display panel, a lens unit disposed on the remaining two adjacent sides of the display panel and reflecting light emitted from the infrared light emitting elements, a light receiving unit disposed on the two adjacent sides of the display panel, and a touch control unit including a touch coordinate calculation unit to calculate a set of coordinates of a touch point and a light emission control unit to divide optical outputs of the infrared light emitting elements into optical output during touch and optical output during non-touch and to lower the optical output during non-touch.Type: GrantFiled: December 12, 2011Date of Patent: July 23, 2019Assignee: LG DISPLAY CO., LTDInventors: Young-Joon Lee, Won-Suk Lee, Hyun-Woo Jang
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Patent number: 10205681Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A controller and a switch for network failure relieving from a software-defined networking (SDN) is provided. A method for operating the controller includes: transmitting, to the switch, path information for at least one packet and a session establishment message to establish a session for detecting a link failure of the at least one packet based on information regarding a capability of detecting a link failure of the switch. The method also includes receiving, from the switch, a session status message regarding a status of the session. If the status of the session is identified as the link failure, updated path information for the at least one packet based on information of the session is transmitted to the switch.Type: GrantFiled: November 10, 2014Date of Patent: February 12, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Woo Jang, Ki-Beom Park, Feng Zhu, Byeong-Soo Yeon
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Patent number: 9977540Abstract: A touch display device and a light sensor module are discussed. The touch display device includes i light sensor modules, where i is a natural number greater than 1, for sensing a touch applied to a touch display panel, and a malfunction recovery unit for determining whether each of the i light sensor modules malfunctions and restarting at least one of the i light sensor modules when the at least one light sensor module is determined to malfunction.Type: GrantFiled: July 12, 2016Date of Patent: May 22, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Hyun-Woo Jang, Shi-Cheol Song
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Patent number: 9910420Abstract: An expansion module for a PLC, used in such a manner that at least one expansion module is sequentially connected to a basic unit in order to exchange massive data at high speed by using USB communication, is provided. Each of the expansion module includes a USB hub and a USB device, and is allocated with an exchange number from a USB host of the basic unit by activating the USB device according to input of a trigger signal. In addition, whether the USB hub is to be used is determined by deciding whether the expansion through the USB hub is required according to the allocated exchange number. Thus, a user needs only to arrange each of the expansion modules by a designation.Type: GrantFiled: May 1, 2015Date of Patent: March 6, 2018Assignee: LSIS CO., LTD.Inventor: Hyun Woo Jang
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Patent number: 9645639Abstract: Disclosed herein is an apparatus and method for driving a touch sensor, which is capable of improving touch sensitivity and accuracy. The touch sensor driving apparatus includes a touch sensor; a read-out circuit; and a signal processor configured to compare raw data from the read-out circuit with a predetermined primary reference value and secondary reference value so as to determine whether the touch node has been touched, wherein the signal processor collects the raw data of each touch node or each channel during a plurality of frames and resets and updates the secondary reference value of each touch node or each channel using the collected raw data.Type: GrantFiled: November 13, 2012Date of Patent: May 9, 2017Assignee: LG Display Co., Ltd.Inventors: Hyun-Woo Jang, Shi-Cheol Song, Eun-Jung Kim
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Patent number: 9635569Abstract: An operation method and apparatus in a first end device of a service provider network is provided. The method includes generating a measurement frame including information supporting simultaneous measurement of a plurality of Service Level Agreement (SLA) metrics, sending the generated measurement frame to a second end device connected through the service provider network, receiving a reply frame corresponding to the generated measurement frame from the second end device, and analyzing the received reply frame and hierarchically acquiring the plurality of SLA metrics for the second end device.Type: GrantFiled: March 28, 2014Date of Patent: April 25, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Ki-Beom Park, Hyun-Woo Jang
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Patent number: 9495321Abstract: Proposed is an apparatus for RS-232C and RS-485 serial communication using common communication port configured to selectively use a communication by RS-232C and RS-485 communication methods without change in external wirings by performing the RS-232C and RS-485 communications using a common communication port, the apparatus including a communication converter configured to transmit a data using mutually different communication methods through a common port in response to a provided communication method selection signal, or receiving a data from outside, and a controller configured to provide the communication method selection signal and the transmission data to the communication converter in response to a set parameter, and to receive the data transmitted from outside through the communication converter.Type: GrantFiled: February 12, 2014Date of Patent: November 15, 2016Assignee: LSIS CO., LTD.Inventor: Hyun Woo Jang
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Publication number: 20160320917Abstract: A touch display device and a light sensor module are discussed. The touch display device includes i light sensor modules, where i is a natural number greater than 1, for sensing a touch applied to a touch display panel, and a malfunction recovery unit for determining whether each of the i light sensor modules malfunctions and restarting at least one of the i light sensor modules when the at least one light sensor module is determined to malfunction.Type: ApplicationFiled: July 12, 2016Publication date: November 3, 2016Applicant: LG Display Co., Ltd.Inventors: Hyun-Woo JANG, Shi-Cheol SONG
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Publication number: 20160294734Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A controller and a switch for network failure relieving from a software-defined networking (SDN) is provided. A method for operating the controller includes: transmitting, to the switch, path information for at least one packet and a session establishment message to establish a session for detecting a link failure of the at least one packet based on information regarding a capability of detecting a link failure of the switch. The method also includes receiving, from the switch, a session status message regarding a status of the session. If the status of the session is identified as the link failure, updated path information for the at least one packet based on information of the session is transmitted to the switch.Type: ApplicationFiled: November 10, 2014Publication date: October 6, 2016Inventors: Hyun-Woo JANG, Ki-Beom PARK, Feng ZHU, Byeong-Soo YEON
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Patent number: 9417736Abstract: A touch display device and a light sensor module recovery method thereof are discussed. The touch display device includes i light sensor modules, where i is a natural number greater than 1, for sensing a touch applied to a touch display panel, and a malfunction recovery unit for determining whether each of the i light sensor modules malfunctions and restarting at least one of the i light sensor modules when the at least one light sensor module is determined to malfunction.Type: GrantFiled: October 30, 2013Date of Patent: August 16, 2016Assignee: LG Display Co., Ltd.Inventors: Hyun-Woo Jang, Shi-Cheol Song
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Patent number: 9323084Abstract: A curved liquid crystal display device includes a liquid crystal display panel, a backlight unit, a bottom cover and a reinforcement frame. The liquid crystal display panel includes a thin film transistor substrate and a color filter substrate. The backlight unit applies light to the liquid crystal display panel. The bottom cover supports the backlight unit and has a flat shape. The reinforcement frame has a predetermined curvature and is attached to the bottom cover. The flat bottom cover is mounted on the reinforcement frame such that the flat bottom cover has the predetermined curvature of the reinforcement frame.Type: GrantFiled: September 5, 2013Date of Patent: April 26, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Se-Min Lee, Hyun-Woo Jang, Ji-Eun Son, JooYoung Yeon, Jae-Yeon Song, Yong-Joong Yoon, Hyo-Sung Lee
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Patent number: 9261720Abstract: A curved liquid crystal display device includes a liquid crystal display panel, a backlight unit, a bottom cover and a reinforcement frame. The liquid crystal display panel includes a thin film transistor substrate and a color filter substrate. The backlight unit applies light to the liquid crystal display panel. The bottom cover supports the backlight unit and has a flat shape. The reinforcement frame has a predetermined curvature and is attached to the bottom cover. The flat bottom cover is mounted on the reinforcement frame such that the flat bottom cover has the predetermined curvature of the reinforcement frame.Type: GrantFiled: November 7, 2013Date of Patent: February 16, 2016Assignee: LG Display Co., Ltd.Inventors: Se Min Lee, Hyun Woo Jang, Ji Eun Son, Joo Young Yeon, Jae Yeon Song, Yong Joong Yoon, Hyo Sung Lee, Han Tae Seo
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Patent number: 9207492Abstract: A back light unit is disclosed, of which thinness is easily provided. The back light unit comprises at least one light source substrate having one surface provided with at least one light source and the other surface provided with a connector to which a driving power source for driving the light source is input; a bottom cover receiving the light source substrate therein, wherein the bottom cover includes at least one opening, so that the connector is projected to the outside of the bottom cover, the opening passing through a rear surface of the bottom cover.Type: GrantFiled: December 10, 2010Date of Patent: December 8, 2015Assignee: LG Display Co., Ltd.Inventors: Jin-seo Park, Hyun-Woo Jang, Jin-Taek Choi, Joo-Young Yeon
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Publication number: 20150331823Abstract: An expansion module for a PLC, used in such a manner that at least one expansion module is sequentially connected to a basic unit in order to exchange massive data at high speed by using USB communication, is provided. Each of the expansion module includes a USB hub and a USB device, and is allocated with an exchange number from a USB host of the basic unit by activating the USB device according to input of a trigger signal. In addition, whether the USB hub is to be used is determined by deciding whether the expansion through the USB hub is required according to the allocated exchange number. Thus, a user needs only to arrange each of the expansion modules by a designation.Type: ApplicationFiled: May 1, 2015Publication date: November 19, 2015Applicant: LSIS CO., LTD.Inventor: Hyun Woo JANG
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Patent number: 9037780Abstract: Provided is a PLC data log module and method for storing data in the same, wherein, in a case one or more storages among a plurality of outside storages is attached, a log data is stored in the attached outside storage, the log data is stored in the storage and check is made as to whether the log data is normally stored in the attached outside storage.Type: GrantFiled: March 20, 2012Date of Patent: May 19, 2015Assignee: LSIS Co., Ltd.Inventor: Hyun Woo Jang