Patents by Inventor Tae-gil Kang
Tae-gil Kang 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: 20240114778Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.Type: ApplicationFiled: August 14, 2023Publication date: April 4, 2024Inventors: So-Young JUNG, Hyo-Nim SHIN, Seung-Hyun YOON, Hyun-Ju KANG, Ye-Jin JEON, Tae-Jun HAN, Mi-Ja LEE, Dong-Gil KIM, Sang-Hee CHO
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Patent number: 11946742Abstract: In an example, a display device includes a rollable display including a display side and an opposite non-display side. The rollable display includes a conductive material with a pattern disposed on the non-display side. The device includes a housing configured to house the rollable display and configured to roll in and roll out the rollable display along a first direction, and a capacitive sensor including a transmitter and a receiver electrode disposed within the housing and configured to sense the pattern.Type: GrantFiled: July 13, 2021Date of Patent: April 2, 2024Assignee: STMicroelectronics Asia Pacific Pte Ltd.Inventors: Tae-gil Kang, Sung Kyu Kim, Sa Hyang Hong, Chang Woo Lee
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Publication number: 20230322463Abstract: A tray for a display panel includes a body part including a base and an outer wall disposed to surround the base, and a slot part including a support member extending in a first direction and a second direction intersecting the first direction, and at least one buffer member disposed on an inner lateral side of the support member, wherein the at least one buffer member includes a plurality of buffer portions, each including airgaps, and a plurality of pillar portions, each disposed between adjacent ones of the plurality of buffer portions, the at least one buffer member includes a first surface, which is in contact with the support member, and a second surface, which faces the first surface, and the second surface has a convex shape in a plan view.Type: ApplicationFiled: March 2, 2023Publication date: October 12, 2023Applicant: Samsung Display Co., LTD.Inventors: Tae Gil KANG, Byung Jin KIM
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Publication number: 20230013804Abstract: In an example, a display device includes a rollable display including a display side and an opposite non-display side. The rollable display includes a conductive material with a pattern disposed on the non-display side. The device includes a housing configured to house the rollable display and configured to roll in and roll out the rollable display along a first direction, and a capacitive sensor including a transmitter and a receiver electrode disposed within the housing and configured to sense the pattern.Type: ApplicationFiled: July 13, 2021Publication date: January 19, 2023Inventors: Tae-gil Kang, Sung Kyu Kim, Sa Hyang Hong, Chang Woo Lee
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Publication number: 20220334671Abstract: An electronic device includes a touch screen for a touch sensitive display carried by a portable housing. The electronic device is configured to operate in a high detection threshold mode to determine whether an object is in contact with the touch sensitive display, and operate in a low detection threshold mode to determine whether the object is adjacent to the touch sensitive display, based on lack of detection of the object being in contact with the touch sensitive display. The electronic device is further configured to determine whether the object s in contact with a peripheral edge of the portable housing by determining whether the object is adjacent opposite sides of the touch sensitive display, based on detection of the object being adjacent to the touch sensitive display.Type: ApplicationFiled: July 7, 2022Publication date: October 20, 2022Applicants: STMICROELECTRONICS ASIA PACIFIC PTE LTD, STMICROELECTRONICS (BEIJING) R&D CO., LTD.Inventors: Tae-gil KANG, Hang YIN, Cam Chung LA
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Patent number: 11448919Abstract: A display device includes a first substrate including a display area and a non-display area, a second substrate disposed on the first substrate, a liquid crystal layer disposed between one surface of the first substrate and one surface of the second substrate, a first polarizing plate disposed on the other surface of the first substrate and having one end disposed inside one end of the first substrate, a second polarizing plate disposed on the other surface of the second substrate and having one end disposed inside one end of the second substrate, a first polarizing coating layer overlapping the one end of the first polarizing plate, and a second polarizing coating layer overlapping the one end of the second polarizing plate.Type: GrantFiled: July 28, 2020Date of Patent: September 20, 2022Assignee: Samsung Display Co., LTD.Inventors: Byung Gon Kum, Tae Gil Kang, Seul Lee
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Patent number: 11416095Abstract: An electronic device described herein includes a touch screen for a touch sensitive display carried by a portable housing. The electronic device is configured to operate in a high detection threshold mode to determine whether an object is in contact with the touch sensitive display, and operate in a low detection threshold mode to determine whether the object is adjacent to the touch sensitive display, based on lack of detection of the object being in contact with the touch sensitive display. The electronic device is further configured to determine whether the object is in contact with a peripheral edge of the portable housing by determining whether the object is adjacent opposite sides of the touch sensitive display, based on detection of the object being adjacent to the touch sensitive display.Type: GrantFiled: May 10, 2016Date of Patent: August 16, 2022Assignees: STMicroelectronics Asia Pacific Pte Ltd, STMicroelectronics (Beijing) R&D Co. LtdInventors: Tae-gil Kang, Hang Yin, Cam Chung La
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Patent number: 11093097Abstract: A data frame in a touch capacitive sensing circuit includes both mutual capacitance data and self capacitance data. The mutual capacitance data and self capacitance data of the frame are filtered to define mutual capacitance and self capacitance islands. Centroids of the mutual capacitance and self capacitance islands are calculated and then processed in a weighted mixing operation to produce a hybrid centroid that more accurately locates the coordinates of a detected touch/hover.Type: GrantFiled: August 4, 2020Date of Patent: August 17, 2021Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Youngjin Wang, Tae-gil Kang
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Publication number: 20210149246Abstract: A display device includes a first substrate including a display area and a non-display area, a second substrate disposed on the first substrate, a liquid crystal layer disposed between one surface of the first substrate and one surface of the second substrate, a first polarizing plate disposed on the other surface of the first substrate and having one end disposed inside one end of the first substrate, a second polarizing plate disposed on the other surface of the second substrate and having one end disposed inside one end of the second substrate, a first polarizing coating layer overlapping the one end of the first polarizing plate, and a second polarizing coating layer overlapping the one end of the second polarizing plate.Type: ApplicationFiled: July 28, 2020Publication date: May 20, 2021Inventors: Byung Gon KUM, Tae Gil KANG, Seul LEE
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Patent number: 10928577Abstract: An optical member includes a light guide plate, a first low refractive layer, a wavelength conversion layer, and a passivation layer. The first low refractive layer is disposed on the light guide plate. A refractive index of the first low refractive layer is smaller than a refractive index of the light guide plate. The wavelength conversion layer is disposed on the first low refractive layer. The passivation layer is disposed on the wavelength conversion layer. The passivation layer covers a side surface of the wavelength conversion layer and a side surface of the first low refractive layer on at least one side.Type: GrantFiled: October 23, 2019Date of Patent: February 23, 2021Assignee: Samsung Display Co., Ltd.Inventors: Seong Yong Hwang, Jin Ho Park, Tae Gil Kang, Hyuk Hwan Kim, Sang Won Lee, Jae Jin Choi
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Publication number: 20200363952Abstract: A data frame in a touch capacitive sensing circuit includes both mutual capacitance data and self capacitance data. The mutual capacitance data and self capacitance data of the frame are filtered to define mutual capacitance and self capacitance islands. Centroids of the mutual capacitance and self capacitance islands are calculated and then processed in a weighted mixing operation to produce a hybrid centroid that more accurately locates the coordinates of a detected touch/hover.Type: ApplicationFiled: August 4, 2020Publication date: November 19, 2020Applicant: STMicroelectronics Asia Pacific Pte LtdInventors: Youngjin WANG, Tae-gil KANG
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Patent number: 10809437Abstract: An optical member includes a light guide plate having a top surface, a bottom surface, and side surfaces that connect the top surface and the bottom surface three-dimensionally and have a smaller area than the top surface and the bottom surface, a low refractive layer disposed on a side surface of the light guide plate and having a lower refractive layer than the light guide plate, and a wavelength conversion layer disposed on the low refractive layer, the wavelength conversion layer receiving first wavelength light and converting the first wavelength light into second wavelength light, which is of a different wavelength band from the first wavelength light.Type: GrantFiled: July 10, 2018Date of Patent: October 20, 2020Assignee: Samsung Display Co., Ltd.Inventors: Seong Yong Hwang, Tae Gil Kang, Sang Won Lee
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Patent number: 10795493Abstract: A touch screen controller includes input circuitry receiving touch data from the touch screen. Processing circuitry acquires touch data from the input circuitry in a self-capacitance sensing mode, locates a force island and locates a sense island. A length of the force island and a length of the sense island is calculated. If the length of the force island is greater than a threshold force length and if the length of the sense island is greater than a threshold sense length, then the product of the lengths is calculated, and if greater than a threshold size, designated a valid area. Touch data in the valid area is then acquired in mutual-capacitance sensing mode, and represents palm touch if a maximum strength value in the valid area is less than a maximum area threshold and if a minimum strength value in the valid area is greater than a minimum area threshold.Type: GrantFiled: June 19, 2018Date of Patent: October 6, 2020Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Tae-gil Kang, Jay Wang
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Patent number: 10775927Abstract: A data frame in a touch capacitive sensing circuit includes both mutual capacitance data and self capacitance data. The mutual capacitance data and self capacitance data of the frame are filtered to define mutual capacitance and self capacitance islands. Centroids of the mutual capacitance and self capacitance islands are calculated and then processed in a weighted mixing operation to produce a hybrid centroid that more accurately locates the coordinates of a detected touch/hover.Type: GrantFiled: August 6, 2018Date of Patent: September 15, 2020Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Youngjin Wang, Tae-gil Kang
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Patent number: 10754082Abstract: Backlight unit and display device are provided. According to an exemplary embodiment of the present disclosure, a backlight unit includes a glass light guide plate having an upper surface, a light-incident surface which is disposed on one side of the upper surface, and an opposite surface which is disposed on the other side of the upper surface; a light source disposed to face the light-incident surface; and a light-shielding member including a first light-shielding portion, which is in contact with the opposite surface, and a second light-shielding portion, which is in contact with part of the upper surface.Type: GrantFiled: July 9, 2018Date of Patent: August 25, 2020Assignee: Samsung Display Co., Ltd.Inventors: Wee Joon Jeong, Keun Ho Lee, Min Gwan Hyun, Tae Gil Kang, Jin Soo Shin
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Patent number: 10747384Abstract: A capacitive touch matrix has first conductive row elements spaced apart from one another, and first row interconnection circuitry electrically connects the first conductive row elements. Second conductive row elements are spaced apart from one another, and second row interconnection circuitry electrically connects the second conductive row elements. First conductive column elements are positioned between two adjacent ones of the first conductive row elements, the first conductive column elements being spaced apart from one another. Second conductive column elements are positioned in a same column as the first conductive column elements and between the two adjacent ones of the first conductive row elements, the second conductive column elements being spaced apart from one another. First column interconnection circuitry electrically connects each first conductive column element, and second column interconnection circuitry electrically connects each conductive column element.Type: GrantFiled: August 1, 2019Date of Patent: August 18, 2020Assignee: STMicroelectronics Asia Pacific Pte LtdInventors: Tae-gil Kang, Aiden Jeon
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Patent number: 10725224Abstract: An optical member includes a light guide plate, a first low refractive layer, a wavelength conversion layer, and a passivation layer. The first low refractive layer is disposed on the light guide plate. A refractive index of the first low refractive layer is smaller than a refractive index of the light guide plate. The wavelength conversion layer is disposed on the first low refractive layer. The passivation layer is disposed on the wavelength conversion layer. The passivation layer covers a side surface of the wavelength conversion layer and a side surface of the first low refractive layer on at least one side.Type: GrantFiled: November 3, 2017Date of Patent: July 28, 2020Assignee: Samsung Display Co., Ltd.Inventors: Seong Yong Hwang, Jin Ho Park, Tae Gil Kang, Hyuk Hwan Kim, Sang Won Lee, Jae Jin Choi
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Patent number: 10705374Abstract: An optical member including a light guide plate, a low refractive layer disposed on an upper surface of the light guide plate and having a lower refractive index than the light guide plate, a wavelength conversion layer disposed on the low refractive layer, a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive layer, and an optical pattern formed on a lower surface of the light guide plate.Type: GrantFiled: January 22, 2018Date of Patent: July 7, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang Won Lee, Seong Yong Hwang, Tae Gil Kang, Sung Hoon Kim, Eun Guk Lee
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Publication number: 20200057185Abstract: An optical member includes a light guide plate, a first low refractive layer, a wavelength conversion layer, and a passivation layer. The first low refractive layer is disposed on the light guide plate. A refractive index of the first low refractive layer is smaller than a refractive index of the light guide plate. The wavelength conversion layer is disposed on the first low refractive layer. The passivation layer is disposed on the wavelength conversion layer. The passivation layer covers a side surface of the wavelength conversion layer and a side surface of the first low refractive layer on at least one side.Type: ApplicationFiled: October 23, 2019Publication date: February 20, 2020Inventors: Seong Yong Hwang, Jin Ho Park, Tae Gil Kang, Hyuk Hwan Kim, Sang Won Lee, Jae Jin Choi
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Publication number: 20190129083Abstract: Backlight unit and display device are provided. According to an exemplary embodiment of the present disclosure, a backlight unit includes a glass light guide plate having an upper surface, a light-incident surface which is disposed on one side of the upper surface, and an opposite surface which is disposed on the other side of the upper surface; a light source disposed to face the light-incident surface; and a light-shielding member including a first light-shielding portion, which is in contact with the opposite surface, and a second light-shielding portion, which is in contact with part of the upper surface.Type: ApplicationFiled: July 9, 2018Publication date: May 2, 2019Inventors: Wee Joon JEONG, Keun Ho LEE, Min Gwan HYUN, Tae Gil KANG, Jin Soo SHIN