Patents by Inventor Tae-Hyung Hwang
Tae-Hyung Hwang 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: 20240276826Abstract: A display device includes: a pixel electrode layer disposed on a substrate, a light emitting layer disposed on the pixel electrode layer, a bank layer disposed on the light emitting layer and defining first, second, and third openings, a first color conversion layer disposed in the first opening and including first quantum dots, and a scattering layer disposed in a layer between the pixel electrode and the bank layer, such that the scattering layer and at least a part of the first color conversion layer cover mutually exclusive parts of the substrate, the scattering layer including a base resin and a plurality of scattering particles dispersed in the base resin.Type: ApplicationFiled: December 13, 2023Publication date: August 15, 2024Inventors: SANGJI PARK, CHEOL SHIN, KEUNCHAN OH, DOKYUNG YOUN, SONGEE LEE, SUN-KYU JOO, WOO-MAN JI, WONSUK HAN, TAE HYUNG HWANG
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Publication number: 20240244935Abstract: A display device includes a display panel, a first light conversion layer, a second light conversion layer, and a light transmission layer, which are disposed on the display panel and spaced apart from each other, a plurality of bank layers, each of which is disposed on the display panel and which are disposed between the first light conversion layer and the second light conversion layer and between the light transmission layer and each of the first and second light conversion layers, a spacer, which is disposed below a bank layer of the bank layers and faces the display panel, and a plurality of lenses which are disposed below the first light conversion layer, the second light conversion layer, and the light transmission layer, and face the display panel. The spacer and the plurality of lenses may be disposed in a same layer.Type: ApplicationFiled: November 1, 2023Publication date: July 18, 2024Inventors: DOKYUNG YOUN, SANGJI PARK, CHEOL SHIN, KEUNCHAN OH, SONGEE LEE, SUN-KYU JOO, WOO-MAN JI, YOUYOUNG JIN, TAE HYUNG HWANG
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Publication number: 20240244892Abstract: A display device includes multiple light emitting devices disposed on a substrate, each including a first electrode, an emission layer, and a second electrode, a pixel defining layer including multiple openings overlapping the first electrode in a plan view, an encapsulation layer covering the light emitting devices and including multiple first openings overlapping the pixel defining layer in a plan view, a bank disposed on the encapsulation layer, overlapping the first openings in a plan view, and including multiple second openings overlapping the light emitting devices in a plan view, a first color conversion layer, a second color conversion layer, and a transmission layer, each disposed inside the second openings, and a spacer disposed on the bank and including a colored material.Type: ApplicationFiled: November 17, 2023Publication date: July 18, 2024Applicant: Samsung Display Co., LTD.Inventors: Song Ee LEE, Sang Ji PARK, Cheol SHIN, Keun Chan OH, DOKYUNG YOUN, Sun-Kyu JOO, Woo-Man JI, You Young JIN, Tae Hyung HWANG
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Patent number: 12039925Abstract: A display substrate includes a first division pattern in which a plurality of first openings corresponding to the first pixel areas and the second pixel areas are defined, a first color filter overlapping each of the first pixel area of the first pixel row and the first pixel area of the second pixel row, a second division pattern which overlaps the peripheral area and in which a first common opening corresponding to each of the first pixel area of the first pixel row and the first pixel area of the second pixel row, which are in one pixel row, is defined, and a first color control pattern corresponding to the first common opening and overlapping each of the first pixel area of the first pixel row and the first pixel area of the second pixel row, which are in the one pixel row.Type: GrantFiled: July 15, 2020Date of Patent: July 16, 2024Assignee: Samsung Display Co., Ltd.Inventors: Jang-Il Kim, Jeongki Kim, Kyounghae Min, Jeaheon Ahn, Yeogeon Yoon, Seok-Joon Hong, Tae Hyung Hwang
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Publication number: 20240237469Abstract: A display device includes: a blue color filter layer in a blue transmission region of an upper substrate, and including first scattering particles; a green color filter layer in a green transmission region of the upper substrate, and including second scattering particles; a red color filter layer in a red transmission region of the upper substrate; a partition wall on the upper substrate and defining a blue transmission opening, a green transmission opening, and a red transmission opening, which overlap the blue transmission region, the green transmission region, and the red transmission region, respectively; a color conversion layer including red color conversion particles and third scattering particles, and accommodated in the red transmission opening; a light emitting element layer on a lower substrate facing the upper substrate; and a filling material between the upper substrate and the lower substrate.Type: ApplicationFiled: August 16, 2023Publication date: July 11, 2024Inventors: SUN-KYU JOO, DAEHYEON KIM, Hong Il Kim, SANGJI PARK, KEUNCHAN OH, DOKYUNG YOUN, SONGEE LEE, CHANG-MIN LEE, HYUNSHIK LEE, WOO-MAN JI, TAE HYUNG HWANG
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Publication number: 20240142678Abstract: A display device includes a display unit including a lower substrate and first, second, and third light emitting elements disposed on the lower substrate, a color filter unit including an upper substrate having a lower surface facing the first, second, and third light emitting elements, a filler disposed between the display unit and the color filter unit and including a wavelength conversion particle. The color filter unit further includes a color filter layer including first, second, and third color filters disposed on the lower surface of the upper substrate, a bank layer disposed below the color filter layer and including first, second, and third openings, a first column spacer filling the first opening, and a second column spacer filling the second opening.Type: ApplicationFiled: July 25, 2023Publication date: May 2, 2024Applicant: Samsung Display Co., LTD.Inventors: SUN-KYU JOO, SANGJI PARK, JAE CHEOL PARK, KEUNCHAN OH, DOKYUNG YOUN, SONGEE LEE, WOO-MAN JI, TAE HYUNG HWANG
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Publication number: 20240138226Abstract: A display device includes: a blue color filter layer in a blue transmission region of an upper substrate, and including first scattering particles; a green color filter layer in a green transmission region of the upper substrate, and including second scattering particles; a red color filter layer in a red transmission region of the upper substrate; a partition wall on the upper substrate and defining a blue transmission opening, a green transmission opening, and a red transmission opening, which overlap the blue transmission region, the green transmission region, and the red transmission region, respectively; a color conversion layer including red color conversion particles and third scattering particles, and accommodated in the red transmission opening; a light emitting element layer on a lower substrate facing the upper substrate; and a filling material between the upper substrate and the lower substrate.Type: ApplicationFiled: August 15, 2023Publication date: April 25, 2024Inventors: SUN-KYU JOO, DAEHYEON KIM, Hong Il Kim, SANGJI PARK, KEUNCHAN OH, DOKYUNG YOUN, SONGEE LEE, CHANG-MIN LEE, HYUNSHIK LEE, WOO-MAN JI, TAE HYUNG HWANG
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Patent number: 11910631Abstract: A color-converting substrate including light-emitting areas and a light-blocking area surrounding the light-emitting areas, the light-emitting areas including first light-emitting areas configured to emit a same color light and spaced apart from each other by the light-blocking area, a partition wall including a first opening continuously overlapping the first light-emitting areas and a first portion of the light-blocking area disposed between the first light-emitting areas, a first color-converting layer including a wavelength-converting material and disposed in the first opening to overlap the first light-emitting areas and the first portion of the light-blocking area, and a color filter layer including a portion configured to block a first color light emitted through the first light-emitting areas, the color filter layer overlapping the first color-converting layer and the first portion of the light-blocking area.Type: GrantFiled: November 25, 2022Date of Patent: February 20, 2024Assignee: Samsung Display Co., Ltd.Inventors: Tae Hyung Hwang, Jiseong Yang, Seon Uk Lee
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Publication number: 20240016041Abstract: A color conversion substrate includes: a blue color filter on an upper substrate; a first color filter on the blue color filter, and exposing the blue color filter in a blue opening area; a partition on the blue color filter and the first color filter, and surrounding the blue opening area; a first color conversion pattern on the first color filter, overlapping with the first color filter, and accommodated by the partition; and a filler on the blue color filter, accommodated by the partition in the blue opening area, and covering the first color conversion pattern.Type: ApplicationFiled: May 3, 2023Publication date: January 11, 2024Inventors: SUN-KYU JOO, KEUNCHAN OH, TAIMEI KODAIRA, SANGJI PARK, DOKYUNG YOUN, WOO-MAN JI, TAE HYUNG HWANG
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Patent number: 11871593Abstract: A method for manufacturing a display device including forming a first color filter transmitting a first color light on a base substrate to overlap first light-emitting areas, forming a second color filter transmitting a second color light different from the first color light to overlap second light-emitting areas and a first portion of a light-blocking area disposed between the first light-emitting areas, forming a partition wall including a first opening continuously overlapping the first light-emitting areas and the first portion of the light-blocking area, providing a first composition including a wavelength-converting material in the first opening, and curing the first composition to form a first color-converting layer.Type: GrantFiled: November 25, 2022Date of Patent: January 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Tae Hyung Hwang, Jiseong Yang, Seon Uk Lee
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Publication number: 20230413636Abstract: A display panel includes a first pixel area and a second pixel area. A division partition wall includes an opening corresponding to at least the first pixel area. A light conversion pattern for changing the color of source light is disposed inside the opening. An optical pattern is arranged to correspond to the second pixel area. The optical pattern transmits the source light therethrough. The optical pattern may have a shape integrally formed with or different from the division partition wall.Type: ApplicationFiled: January 18, 2021Publication date: December 21, 2023Inventors: Seon Uk LEE, Donchan CHO, Kanguk KIM, Yeogeon YOON, Tae Hyung HWANG
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Publication number: 20230292545Abstract: Embodiments provide a light control member that includes a light control layer including quantum dots, a low refractive layer disposed on the light control layer, and a capping layer disposed between the light control layer and the low refractive layer. The capping layer includes a first silicon oxynitride containing an amount of nitrogen in a range of about 0.1 at % to about 18 at %, an amount of oxygen in a range of about 42 at % to about 70 at %, and an amount of silicon in a range of about 25 at % to about 45 at %. Accordingly, the light control member exhibits excellent reliability.Type: ApplicationFiled: January 23, 2023Publication date: September 14, 2023Applicant: Samsung Display Co., Ltd.Inventors: JEONGKI KIM, JANG-IL KIM, JONG-HOON KIM, KYOUNGHAE MIN, HYEJUN WOO, SEONGYEON LEE, SUJIN LEE, SI-WAN JEON, TAE HYUNG HWANG
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Patent number: 11758788Abstract: Disclosed are display panels and methods of manufacturing substrates. The display panel comprises a lower display substrate that includes a plurality of light emitting elements, and an upper display substrate that includes a color control layer and is on the lower display substrate. The color control layer includes a plurality of walls each of which includes a wall base including an organic material and a reflective layer including a metallic material, and the color control layer also includes a plurality of color control parts which are disposed between the plurality of walls and at least one of which includes a quantum dot. The reflective layer surrounds at least a portion of a sidewall of the wall base, which results in an increase in luminous efficiency and an improvement in brightness.Type: GrantFiled: September 23, 2022Date of Patent: September 12, 2023Assignee: Samsung Display Co., Ltd.Inventors: Seon Uk Lee, Kanguk Kim, Sanggab Kim, Donchan Cho, Tae Hyung Hwang, KyeongSu Ko, Sungwon Cho
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Publication number: 20230263031Abstract: A display panel includes a light emitting element layer including a light emitting element that generates a first color light, a light control layer over the light emitting element layer, a color filter layer over the light control layer, and a low refractive index layer that is between the light control layer and the color filter layer and that has a thickness of about 0.2 ?m to about 2.5 ?m.Type: ApplicationFiled: February 13, 2023Publication date: August 17, 2023Inventors: SEONGYEON LEE, JANG-IL KIM, JEONGKI KIM, JONG-HOON KIM, KYOUNGHAE MIN, HYEJUN WOO, HAKBUM CHOI, SEOK-JOON HONG, TAE HYUNG HWANG
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Publication number: 20230255093Abstract: A display panel includes a light emitting element that outputs source light and that includes a first electrode, an emissive layer over the first electrode, and a second electrode over the emissive layer and a light control layer over the light emitting element. The light control layer includes at least one light control pattern and a barrier layer that is on one surface of the light control pattern and that contains silicon oxynitride (SiON). The barrier layer contains 0.1 atomic% to 18 atomic % nitrogen, 42 atomic% to 70 atomic% oxygen, and 25 atomic% to 45 atomic% silicon. Accordingly, the durability and barrier characteristics of the barrier layer and the light conversion efficiency of the light control pattern may be improved, and thus the reliability and display efficiency of the display panel including the barrier layer and the light control pattern may be enhanced.Type: ApplicationFiled: January 12, 2023Publication date: August 10, 2023Inventors: JEONGKI KIM, HAKBUM CHOI, SEOK-JOON HONG, MYOUNGJONG LEE, SUJIN LEE, SI-WAN JEON, TAE HYUNG HWANG
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Patent number: 11716890Abstract: A display device includes a lower substrate, a plurality of pixels, an upper substrate, a light blocking member, first and second color filters, first and second color conversion patterns, and a light blocking pattern. The light blocking pattern is disposed between the first and second color conversion patterns, and includes a first portion and a second portion which overlaps the light blocking member. A shape the second portion is different from a shape of the first portion.Type: GrantFiled: January 24, 2021Date of Patent: August 1, 2023Assignee: Samsung Display Co., Ltd.Inventors: Seok-Joon Hong, Jang-Il Kim, Tae Hyung Hwang
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Patent number: 11700757Abstract: In a color conversion panel including pixel areas emitting a light having a same color and a non-pixel area between the pixel areas, the color conversion panel may include a substrate, a light shielding pattern disposed on the substrate in the non-pixel area, a color conversion layer disposed on the substrate, covering the light shielding pattern, and configured to convert an incident light, a height of a first portion of the color conversion layer corresponding to the non-pixel area from the substrate being less than each of heights of second portions of the color conversion layer respectively corresponding to the pixel areas from the substrate, and a light shielding partition wall disposed on the color conversion layer in the non-pixel area.Type: GrantFiled: June 8, 2020Date of Patent: July 11, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jang-Il Kim, Jeongki Kim, Myoungjong Lee, Tae Hyung Hwang
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Publication number: 20230169914Abstract: A display substrate includes a first division pattern in which a plurality of first openings corresponding to the first pixel areas and the second pixel areas are defined, a first color filter overlapping each of the first pixel area of the first pixel row and the first pixel area of the second pixel row, a second division pattern which overlaps the peripheral area and in which a first common opening corresponding to each of the first pixel area of the first pixel row and the first pixel area of the second pixel row, which are in one pixel row, is defined, and a first color control pattern corresponding to the first common opening and overlapping each of the first pixel area of the first pixel row and the first pixel area of the second pixel row, which are in the one pixel row.Type: ApplicationFiled: July 15, 2020Publication date: June 1, 2023Inventors: Jang-Il KIM, Jeongki KIM, Kyounghae MIN, Jeaheon AHN, Yeogeon YOON, Seok-Joon HONG, Tae Hyung HWANG
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Patent number: 11631722Abstract: A display device includes a first light emitting element on a first substrate and overlapping a first effective pixel area; test light emitting elements on the first substrate and overlapping the test pixel area; a first color filter on a second substrate and overlapping the first light emitting element; a first wavelength conversion pattern on the first color filter and overlapping the first color filter and the first light emitting element; a first test color filter on the second substrate and overlapping one of the test light emitting elements; and a first test wavelength conversion pattern on the second substrate and overlapping another one of the test light emitting elements. The first test wavelength conversion pattern and the first wavelength conversion pattern include a same first wavelength conversion material, and the first test color filter and the first color filter include a same first color colorant.Type: GrantFiled: January 25, 2021Date of Patent: April 18, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jea Heon Ahn, Jeong Ki Kim, Seong Yeon Lee, Si Wan Jeon, Tae Hyung Hwang
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Publication number: 20230100355Abstract: A color-converting substrate including light-emitting areas and a light-blocking area surrounding the light-emitting areas, the light-emitting areas including first light-emitting areas configured to emit a same color light and spaced apart from each other by the light-blocking area, a partition wall including a first opening continuously overlapping the first light-emitting areas and a first portion of the light-blocking area disposed between the first light-emitting areas, a first color-converting layer including a wavelength-converting material and disposed in the first opening to overlap the first light-emitting areas and the first portion of the light-blocking area, and a color filter layer including a portion configured to block a first color light emitted through the first light-emitting areas, the color filter layer overlapping the first color-converting layer and the first portion of the light-blocking area.Type: ApplicationFiled: November 25, 2022Publication date: March 30, 2023Inventors: Tae Hyung HWANG, Jiseong YANG, Seon Uk LEE