Patents by Inventor Chul Woong Joo
Chul Woong Joo 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: 12013662Abstract: An apparatus which analyses a depth of a holographic image is provided. The apparatus includes an acquisition unit that acquires a hologram, a restoration unit that restores a three-dimensional holographic image by irradiating the hologram with a light source, an image sensing unit that senses a depth information image of the restored holographic image, and an analysis display unit that analyzes a depth quality of the holographic image, based on the sensed depth information image, and the image sensing unit uses a lensless type of photosensor.Type: GrantFiled: November 10, 2021Date of Patent: June 18, 2024Assignees: Electronics and Telecommunications Research Institute, MVTECHInventors: Jae-Eun Pi, Yong Hae Kim, Jong-Heon Yang, Chul Woong Joo, Chi-Sun Hwang, Ha Kyun Lee, Seung Youl Kang, Gi Heon Kim, Joo Yeon Kim, Hee-ok Kim, Jeho Na, Jaehyun Moon, Won Jae Lee, Seong-Mok Cho, Ji Hun Choi
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Patent number: 11706946Abstract: Provided is a stretchable display device. The stretchable display device includes a substrate and a base pattern on the substrate, wherein the base pattern comprises a first portion, a second portion, and a connection portion configured to connect the first portion to the second portion. The stretchable display device includes a lower electrode on the first portion of the base pattern; an upper electrode on the lower electrode, a light emitting structure between the lower electrode and the upper electrode, and a protective layer configured to cover top and side surfaces of the upper electrode, side surfaces of the light emitting structure, a side surface of the lower electrode, and a portion of a side surface of the base pattern. The upper electrode extends to a top surface of the connection portion and a top surface of the second portion of the base pattern, and the first portion and the second portion of the base pattern extend in a first direction parallel to a top surface of the substrate.Type: GrantFiled: March 3, 2021Date of Patent: July 18, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Ji-Young Oh, Himchan Oh, Chul Woong Joo, Seung Youl Kang, Chan Woo Park, Seongdeok Ahn, Jae-Eun Pi, Chi-Sun Hwang
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Patent number: 11514724Abstract: Disclosed are a biometric device and a biometric system including the same. The device includes a biogenic-synthesized film, a reflective layer disposed on one side of the biogenic-synthesized film, a light source disposed on the reflective layer to generate light, a beam splitter disposed between the light source and the reflective layer to provide the light to the reflective layer and another side of the biogenic-synthesized film, and a light switching layer disposed between the beam splitter and the reflective layer to switch the light provided to the reflective layer.Type: GrantFiled: May 26, 2021Date of Patent: November 29, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Young Sam Park, Seung Youl Kang, Chul Woong Joo, Jae-Eun Pi
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Patent number: 11424299Abstract: Provided is a pressure sensitive display device including a sensing substrate, a reaction substrate provided on the sensing substrate, and spacers provided between the sensing substrate and the reaction substrate to space the sensing substrate apart from the reaction substrate. Here, the sensing substrate includes a flexible substrate and a touch electrode provided on one surface of the flexible substrate, which faces the reaction substrate. The reaction substrate includes a transparent substrate, a transparent electrode provided on one surface of the transparent substrate, which faces the sensing substrate, and a light emitting layer disposed on the transparent electrode.Type: GrantFiled: April 7, 2020Date of Patent: August 23, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Ji-Young Oh, Seung Youl Kang, Seongdeok Ahn, Jeong Ik Lee, Chi-Sun Hwang, Byoung-Hwa Kwon, Tae-Youb Kim, Jeho Na, Sooji Nam, Jaehyun Moon, Young Sam Park, Chan Woo Park, Doo-Hee Cho, Chul Woong Joo, Jae-Eun Pi
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Publication number: 20220179359Abstract: Disclosed is an apparatus of analyzing a depth of a holographic image according to the present disclosure, which includes an acquisition unit that acquires a hologram, a restoration unit that restores a three-dimensional holographic image by irradiating the hologram with a light source, an image sensing unit that senses a depth information image of the restored holographic image, and an analysis display unit that analyzes a depth quality of the holographic image, based on the sensed depth information image, and the image sensing unit uses a lensless type of photosensor.Type: ApplicationFiled: November 10, 2021Publication date: June 9, 2022Applicants: Electronics and Telecommunications Research Institute, MVTECHInventors: Jae-Eun PI, Yong Hae KIM, Jong-Heon YANG, Chul Woong JOO, Chi-Sun HWANG, HA KYUN LEE, Seung Youl KANG, Gi Heon KIM, Joo Yeon KIM, Hee-ok KIM, Jeho NA, Jaehyun MOON, Won Jae LEE, Seong-Mok CHO, Ji Hun CHOI
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Publication number: 20220036104Abstract: Disclosed are a biometric device and a biometric system including the same. The device includes a hiogenic-synthesized film, a reflective layer disposed on one side of the biogenic-synthesized film, a light source disposed on the reflective layer to generate light, a beam splitter disposed between the light source and the reflective layer to provide the light to the reflective layer and another side of the biogenic-synthesized film, and a light switching layer disposed between the beam splitter and the reflective layer to switch the light provided to the reflective layer.Type: ApplicationFiled: May 26, 2021Publication date: February 3, 2022Applicant: Electronics and Telecommunications Research InstituteInventors: YOUNG SAM PARK, Seung Youl KANG, Chul Woong JOO, Jae-Eun PI
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Publication number: 20210280827Abstract: Provided is a stretchable display device. The stretchable display device includes a substrate and a base pattern on the substrate, wherein the base pattern comprises a first portion, a second portion, and a connection portion configured to connect the first portion to the second portion. The stretchable display device includes a lower electrode on the first portion of the base pattern; an upper electrode on the lower electrode, a light emitting structure between the lower electrode and the upper electrode, and a protective layer configured to cover top and side surfaces of the upper electrode, side surfaces of the light emitting structure, a side surface of the lower electrode, and a portion of a side surface of the base pattern. The upper electrode extends to a top surface of the connection portion and a top surface of the second portion of the base pattern, and the first portion and the second portion of the base pattern extend in a first direction parallel to a top surface of the substrate.Type: ApplicationFiled: March 3, 2021Publication date: September 9, 2021Applicant: Electronics and Telecommunications Research InstituteInventors: Ji-Young OH, Himchan OH, Chul Woong JOO, Seung Youl KANG, Chan Woo PARK, Seongdeok AHN, Jae-Eun PI, Chi-Sun HWANG
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Patent number: 10878214Abstract: Provided is a complex biometric sensor. The complex biometric sensor includes a substrate including a light emitting region, a first light receiving region, and a second light receiving region, a light emitting part disposed adjacent to the substrate in the light emitting region, a color conversion layer disposed on the substrate in the light emitting region and vertically overlapping the light emitting part; a first light receiving layer disposed on the substrate in the first light receiving region, and a second light receiving layer disposed on the substrate in the second light receiving region. The light emitting part generates light of a first wavelength. The color conversion layer receives light of the first wavelength and emits the light of the first wavelength and light of the second wavelength. The first light receiving layer detects the light of the first wavelength. The second light receiving layer detects the light of the second wavelength.Type: GrantFiled: April 8, 2019Date of Patent: December 29, 2020Assignee: Electronics and Telecommunications Research InstituteInventors: Chul Woong Joo, Seung Youl Kang, Jaehyun Moon, Seongdeok Ahn, Jae-Eun Pi, Young Sam Park, Byoung-Hwa Kwon, Sung Haeng Cho, Jeong Ik Lee, Nam Sung Cho, Su Jae Lee
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Patent number: 10825932Abstract: Provided is a thin film transistor including a substrate, a first spacer on the substrate, a second spacer on the first spacer, a light shield layer intervened between the first spacer and the second spacer, a semiconductor layer on the second spacer, and a gate electrode on the semiconductor layer, wherein the light shield layer includes a plurality of inclined surfaces against a top surface of the substrate.Type: GrantFiled: April 3, 2019Date of Patent: November 3, 2020Assignee: Electronics and Telecommunications Research InstituteInventors: Jae-Eun Pi, Seung Youl Kang, Jaehyun Moon, Seongdeok Ahn, Jongchan Lee, Chul Woong Joo, Chi-Sun Hwang
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Publication number: 20200321403Abstract: Provided is a pressure sensitive display device including a sensing substrate, a reaction substrate provided on the sensing substrate, and spacers provided between the sensing substrate and the reaction substrate to space the sensing substrate apart from the reaction substrate. Here, the sensing substrate includes a flexible substrate and a touch electrode provided on one surface of the flexible substrate, which faces the reaction substrate. The reaction substrate includes a transparent substrate, a transparent electrode provided on one surface of the transparent substrate, which faces the sensing substrate, and a light emitting layer disposed on the transparent electrode.Type: ApplicationFiled: April 7, 2020Publication date: October 8, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji-Young OH, Seung Youl KANG, Seongdeok AHN, Jeong Ik LEE, Chi-Sun HWANG, Byoung-Hwa KWON, Tae-Youb KIM, Jeho NA, Sooji NAM, Jaehyun MOON, Young Sam PARK, Chan Woo PARK, Doo-Hee CHO, Chul Woong JOO, Jae-Eun PI
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Patent number: 10490763Abstract: Provided is a display device and a manufacturing method thereof. More specifically, the present invention relates to a display device including a nickel oxide thin film co-doped with a copper monovalent cation and a copper divalent cation, and a manufacturing method thereof. The present invention provides a display device including a substrate, a first electrode layer disposed on the substrate, a first common layer disposed on the substrate, a light emitting layer disposed on the first common layer, a second common layer disposed on the light emitting layer, and a second electrode layer disposed on the second common layer, wherein the first common layer includes a nickel oxide thin film co-doped with a first metal cation and a second metal cation, and the oxidation number of the first metal cation and the oxidation number the second metal cation are different from each other.Type: GrantFiled: August 2, 2018Date of Patent: November 26, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Byoung-Hwa Kwon, Chul Woong Joo, Jonghee Lee, Hyunkoo Lee, Hyunsu Cho, Nam Sung Cho
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Patent number: 10472276Abstract: A composition for forming film having wrinkle structure and a method of forming the film are disclosed. The composition includes photo-curable agent and photoinitiator dissolved in the photo-curable agent. The cut off wavelength of light transmittance of the photo-curable agent is greater than the cut off wavelength of light absorbance of the photoinitiator. Photo-cured thin film is formed at the upper portion of composition layer at an initial time period of irradiation. By subsequent contraction, the photo-cured thin film forms wrinkles. The wrinkle structure is controlled by the relation of the cut off wavelength of light transmittance of the photo-curable agent and the cut off wavelength of light absorbance of the photoinitiator, the photo-curing rate of the composition and the thickness of the composition layer, and the photoinitiator concentration, etc., before photo-curing. The film may increase the emission efficiency of LED and OLED and the sensing effect of sensor.Type: GrantFiled: August 10, 2015Date of Patent: November 12, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung Koo Park, Jaehyun Moon, Jeong Ik Lee, Byoung Gon Yu, Jonghee Lee, Chul Woong Joo, Doo-Hee Cho, Jun-Han Han
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Publication number: 20190311177Abstract: Provided is a complex biometric sensor. The complex biometric sensor includes a substrate including a light emitting region, a first light receiving region, and a second light receiving region, a light emitting part disposed adjacent to the substrate in the light emitting region, a color conversion layer disposed on the substrate in the light emitting region and vertically overlapping the light emitting part; a first light receiving layer disposed on the substrate in the first light receiving region, and a second light receiving layer disposed on the substrate in the second light receiving region. The light emitting part generates light of a first wavelength. The color conversion layer receives light of the first wavelength and emits the light of the first wavelength and light of the second wavelength. The first light receiving layer detects the light of the first wavelength. The second light receiving layer detects the light of the second wavelength.Type: ApplicationFiled: April 8, 2019Publication date: October 10, 2019Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chul Woong JOO, Seung Youl KANG, Jaehyun MOON, Seongdeok AHN, Jae-Eun PI, Young Sam PARK, Byoung-Hwa KWON, Sung Haeng CHO, JEONG IK LEE, Nam Sung CHO, Su Jae LEE
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Publication number: 20190312148Abstract: Provided is a thin film transistor including a substrate, a first spacer on the substrate, a second spacer on the first spacer, a light shield layer intervened between the first spacer and the second spacer, a semiconductor layer on the second spacer, and a gate electrode on the semiconductor layer, wherein the light shield layer includes a plurality of inclined surfaces against a top surface of the substrate.Type: ApplicationFiled: April 3, 2019Publication date: October 10, 2019Applicant: Electronics and Telecommunications Research InstituteInventors: Jae-Eun PI, Seung Youl KANG, Jaehyun MOON, Seongdeok AHN, Jongchan LEE, Chul Woong JOO, Chi-Sun HWANG
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Publication number: 20190213380Abstract: Provided is an optical fingerprint recognition sensor. The optical fingerprint recognition sensor includes a transparent light emitting unit configured to emit light to a fingerprint, a light receiving unit disposed below the light emitting unit to vertically overlap the light emitting unit and configured to receive light reflected by the fingerprint, and a control unit disposed below the light emitting unit to vertically overlap the light emitting unit and configured to control the light emitting unit and the light receiving unit. The light emitting unit includes an organic layer.Type: ApplicationFiled: December 13, 2018Publication date: July 11, 2019Inventors: Chul Woong JOO, Jonghee LEE, Jae-Eun PI, Byoung-Hwa KWON, Hyunsu CHO, Seung Youl KANG, Seongdeok AHN, Jeong Ik LEE, Nam Sung CHO, Sung Haeng CHO, Woojin SUNG, Jongchan LEE
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Publication number: 20190131559Abstract: Provided is a display device and a manufacturing method thereof. More specifically, the present invention relates to a display device including a nickel oxide thin film co-doped with a copper monovalent cation and a copper divalent cation, and a manufacturing method thereof. The present invention provides a display device including a substrate, a first electrode layer disposed on the substrate, a first common layer disposed on the substrate, a light emitting layer disposed on the first common layer, a second common layer disposed on the light emitting layer, and a second electrode layer disposed on the second common layer, wherein the first common layer includes a nickel oxide thin film co-doped with a first metal cation and a second metal cation, and the oxidation number of the first metal cation and the oxidation number the second metal cation are different from each other.Type: ApplicationFiled: August 2, 2018Publication date: May 2, 2019Inventors: Byoung-Hwa KWON, Chul Woong JOO, Jonghee LEE, Hyunkoo LEE, Hyunsu CHO, Nam Sung CHO
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Patent number: 10147900Abstract: Provided are a method for manufacturing an integrated substrate for an organic light emitting diode, an organic light emitting diode, and a method for manufacturing an organic light emitting diode, wherein the method for manufacturing an organic light emitting diode may include forming a sacrificial layer on a release substrate, forming a first electrode on the sacrificial layer, forming on the first electrode an auxiliary electrode pattern having an opening, forming a buffer layer on the auxiliary electrode pattern and in the opening, providing a substrate on the buffer layer, removing the release substrate and the sacrificial layer to expose a first surface of the first electrode, and laminating an organic light emitting layer and a second electrode on the first surface of the first electrode.Type: GrantFiled: January 6, 2017Date of Patent: December 4, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Doo-Hee Cho, Jonghee Lee, Hyunsu Cho, Byoung-Hwa Kwon, Jaehyun Moon, Young Sam Park, Jin Wook Shin, Byoung Gon Yu, Jeong Ik Lee, Hyunkoo Lee, Jong Tae Lim, Nam Sung Cho, Chul Woong Joo, Jun-Han Han
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Patent number: 10033005Abstract: Provided is a stretchable substrate, an electronic apparatus, and a method of manufacturing the electronic apparatus. The stretchable substrate includes a base part, first parts extruded from the base part, and second parts disposed between two adjacent first parts. The second parts have top surfaces positioned lower than the top surfaces of the first parts, and have wrinkles with random distribution.Type: GrantFiled: January 27, 2017Date of Patent: July 24, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jaehyun Moon, Chan Woo Park, Nam Sung Cho, Jun-Han Han, Seung Koo Park, Sung Ryul Yun, Jeong Ik Lee, Hyunsu Cho, Chul Woong Joo
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Patent number: 9799856Abstract: Provided is an organic light emitting diodes (OLED) and method of manufacturing the OLED. The OLED includes: a substrate; a light scattering layer having an uneven shape on the substrate; a transparent electrode film provided directly on and in contact with the light scattering layer; an organic light emitting layer on the transparent electrode film; and an electrode on the organic light emitting layer. The method of manufacturing the OLED includes: disposing a light scattering layer on a substrate; providing a transparent electrode film on the light scattering layer; and transferring the transparent electrode film to be directly on and in contact with the light scattering layer.Type: GrantFiled: December 30, 2016Date of Patent: October 24, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jin Wook Shin, Jeong Ik Lee, HongKyw Choi, Jaehyun Moon, Jonghee Lee, Nam Sung Cho, Doo-Hee Cho, Chul Woong Joo, Jun-Han Han
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Publication number: 20170250356Abstract: Provided is a stretchable substrate, an electronic apparatus, and a method of manufacturing the electronic apparatus. The stretchable substrate includes a base part, first parts extruded from the base part, and second parts disposed between two adjacent first parts. The second parts have top surfaces positioned lower than the top surfaces of the first parts, and have wrinkles with random distribution.Type: ApplicationFiled: January 27, 2017Publication date: August 31, 2017Inventors: Jaehyun MOON, Chan Woo PARK, Nam Sung CHO, Jun-Han HAN, Seung Koo PARK, Sung Ryul YUN, Jeong Ik LEE, Hyunsu CHO, Chul Woong JOO