Patents by Inventor Chang-Soon Jang
Chang-Soon 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: 20220085114Abstract: A color transformation substrate comprises: a base portion having first and second light-blocking areas and first to third light-transmitting areas, where the light-transmitting areas are successively positioned along a first direction; first to third color filters positioned in the first to third light-transmitting areas, respectively; a light-blocking member positioned in the first light-blocking area, and including part contacting the base portion; a color pattern positioned in the second light-blocking area so as to contact the base portion; a first wavelength conversion pattern positioned on the second color filter so as to wavelength-convert light having a first color into light having a second color; and a second wavelength conversion pattern positioned on the third color filter so as to wavelength-convert light having the first color into light having a third color different from light having the second color. The color pattern and the first color filter comprise the same color material.Type: ApplicationFiled: March 13, 2019Publication date: March 17, 2022Inventors: Jae Min SEONG, Keun Chan OH, Gak Seok LEE, Sun Kyu JOO, Byung Chul KIM, In Ok KIM, In Seok SONG, Ji Eun JANG, Chang Soon JANG
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Publication number: 20220050330Abstract: A display device includes: a display panel; and a color conversion panel overlapping with the display panel. The color conversion panel includes: a substrate; a first color conversion pattern on the substrate; a second color conversion pattern on the substrate, and partially overlapping with the first color conversion pattern; a first reflective partition wall between the first color conversion pattern and the second color conversion pattern; a first color filter between the substrate and the first color conversion pattern; and a second color filter between the substrate and the second color conversion pattern.Type: ApplicationFiled: March 25, 2020Publication date: February 17, 2022Inventors: Chang-Soon JANG, Byung-Chul KIM, In-Ok KIM, Jae-Min SEONG, In-Seok SONG, Gak-Seok LEE, Ji-Eun JANG, Sun-Kyu JOO, Ha-Lim JI
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Publication number: 20220052121Abstract: Provided is a display device. The display device includes a first base portion, a second base portion facing the first base portion, a light emitting layer disposed on one surface of the first base portion and emitting first light, a first wavelength conversion pattern disposed on the light emitting layer and converting the first light into second light having a different wavelength from the first light, a first color filter overlapping the first wavelength conversion pattern on one surface of the second base portion and spaced apart from the first wavelength conversion pattern, and an air layer interposed between the first wavelength conversion pattern and the first color filter.Type: ApplicationFiled: June 3, 2021Publication date: February 17, 2022Inventors: Chang Soon JANG, Keun Chan OH, Gak Seok LEE, Sang Hun LEE, So Yun LEE, Ji Eun JANG
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Publication number: 20220045132Abstract: A color conversion panel includes a plurality of pixel areas including a first pixel area and a second pixel area, and a non-pixel area which is adjacent to the first pixel area and the second pixel area, a light blocking layer in the non-pixel area, a color filter layer including a first color filter in the first pixel area and a second color filter in the second pixel area, a color conversion layer which color converts incident light, and scatters and reflects external light, the color conversion layer including a first color conversion pattern corresponding to the first color filter and a light transmission pattern corresponding to the second color filter, and a light absorbing layer which faces the color conversion layer and absorbs light which is scattered and reflected from the color conversion layer.Type: ApplicationFiled: April 28, 2021Publication date: February 10, 2022Inventors: GAK SEOK LEE, JIEUN JANG, KEUNCHAN OH, SANGHUN LEE, CHANG-SOON JANG
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Publication number: 20210384262Abstract: A color control member includes a color control layer including a quantum dot and a color filter layer on the color control layer, wherein a low refractive layer may be between the color control layer and the color filter layer. The low refractive layer includes a base resin and a plurality of sets of hollow particles dispersed in the base resin, and each of the hollow particles of each set of the sets of hollow particles may have a spherical shape. The sets of hollow particles may have respective average diameters, and a ratio of two average diameters of the respective average diameters of the sets of hollow particles is about 2:1 to about 60:1, and the low refractive layer including the hollow particles may be formed through a continuous process at a low temperature.Type: ApplicationFiled: February 16, 2021Publication date: December 9, 2021Inventors: Youyoung JIN, Keunchan OH, Gak Seok LEE, Sanghun LEE, Chang-Soon JANG
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Patent number: 11195885Abstract: A display device includes: a first substrate; a second substrate on the first substrate; a pixel between the first substrate and the second substrate and including a pixel area and a non-pixel area around the pixel area; a color filter between the pixel and the second substrate and overlapping with the pixel area; and a plurality of protrusions between the second substrate and the color filter, and each of the protrusions has a width that decreases as a distance from the second substrate increases.Type: GrantFiled: March 31, 2020Date of Patent: December 7, 2021Assignee: Samsung Display Co., Ltd.Inventors: Gak Seok Lee, Byung-Chul Kim, Inok Kim, Jaemin Seong, Inseok Song, Keunchan Oh, Jieun Jang, Chang-Soon Jang, Sun-Kyu Joo
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Publication number: 20210376000Abstract: A display panel comprises a first substrate including a pixel area defined, and a second substrate disposed under the first substrate and including a light emitting element that emits first light to the first substrate. The first substrate includes a base layer, a color filter layer disposed under the base layer and disposed in the pixel area, a light control layer disposed under the color filter layer, and a first opening between the color filter layer and the light control layer.Type: ApplicationFiled: February 19, 2021Publication date: December 2, 2021Applicant: Samsung Display Co., LTD.Inventors: Youyoung Jin, Jae Cheol Park, Keunchan Oh, Gak Seok Lee, Sanghun Lee, Chang-Soon Jang
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Publication number: 20210320155Abstract: A display device includes: a first base layer; a circuit element layer on the first base layer; a pixel definition layer on the circuit element layer and comprising a plurality of light-emitting openings which are spaced apart from each other and define a plurality of light-emitting regions; a second base layer spaced apart from and facing the first base layer; a light-shielding layer on the second base layer and comprising a plurality of openings respectively overlapping the light-emitting regions, wherein on a plane of the first base layer, shapes of first to third openings along one direction among the openings are different from each other.Type: ApplicationFiled: June 23, 2021Publication date: October 14, 2021Inventors: Sun-Kyu JOO, Keunchan OH, Byung-Chul KIM, Inok KIM, Gak Seok LEE, Jieun JANG, Inseok SONG, Chang-Soon JANG
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Patent number: 11081532Abstract: Provided is a display apparatus including a display module having a folding region and a plurality of non-folding regions adjacent to the folding region and including a display surface configured to display an image, and a support member below the display module and supporting the display module, wherein the display module is operated in a plurality of modes, and the plurality of modes includes a first mode in which the folding region has a first curvature radius and is folded in a first bending direction which surrounds a virtual first bending axis defined below the display module and a second mode in which the folding region has a second curvature radius and is folded in a second bending direction which surrounds a virtual second bending axis defined above the display module, wherein the first curvature radius is greater than the second curvature radius.Type: GrantFiled: November 18, 2019Date of Patent: August 3, 2021Assignee: Samsung Display Co., Ltd.Inventors: Gak Seok Lee, Byung-Chul Kim, Chang-Soon Jang, In Ok Kim, Inseok Song, Keunchan Oh, Jieun Jang
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Patent number: 11063092Abstract: A display device includes: a first base layer; a circuit element layer on the first base layer; a pixel definition layer on the circuit element layer and comprising a plurality of light-emitting openings which are spaced apart from each other and define a plurality of light-emitting regions; a second base layer spaced apart from and facing the first base layer; a light-shielding layer on the second base layer and comprising a plurality of openings respectively overlapping the light-emitting regions, wherein on a plane of the first base layer, shapes of first to third openings along one direction among the openings are different from each other.Type: GrantFiled: August 5, 2019Date of Patent: July 13, 2021Assignee: Samsung Display Co., Ltd.Inventors: Sun-Kyu Joo, Keunchan Oh, Byung-Chul Kim, Inok Kim, Gak Seok Lee, Jieun Jang, Inseok Song, Chang-Soon Jang
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Publication number: 20210175291Abstract: A display panel includes: an upper display substrate including a plurality of pixel areas arranged in each of a plurality of pixel columns and a light blocking area disposed adjacent to the pixel areas; and a lower display substrate including a plurality of display elements respectively overlapping the pixel areas, wherein the upper display substrate includes: a base substrate; a color filter layer disposed on the base substrate; and a light control layer disposed on the color filter layer and including transmission portions respectively at least partially overlapping first pixel areas arranged in a first one of the pixel columns and first conversion portions respectively at least partially overlapping second pixel areas arranged in a second one of the pixel columns, wherein the light blocking area includes a first light blocking area defined between the transmission portion and the first conversion portion, and a second light blocking area defined between the first conversion portions, and a first shortest dType: ApplicationFiled: February 19, 2021Publication date: June 10, 2021Inventors: Sun-kyu Joo, Keunchan Oh, Byung-Chul Kim, Inok Kim, Jaemin Seong, Gakseok Lee, Jieun Jang, Inseok Song, Chang-Soon Jang
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Publication number: 20210091156Abstract: A display device includes a substrate, a thin film transistor on the substrate, an interlayer insulating layer on the thin film transistor, an electrode on the interlayer insulating layer, the electrode including an emission region, a contact region overlapping the thin film transistor, and a dummy region protruding from the emission region in a direction different from the contact region, and an emission layer on the electrode, the emission region of the electrode overlapping the emission layer.Type: ApplicationFiled: December 4, 2020Publication date: March 25, 2021Applicant: Samsung Display Co., Ltd.Inventors: Sun-Kyu JOO, In Seok SONG, Keun Chan OH, Byung-Chul KIM, In Ok KIM, Gak Seok LEE, Chang-Soon JANG
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Patent number: 10950667Abstract: A display panel includes an upper display substrate including pixel areas arranged in each of pixel columns and a light blocking area and a lower display substrate including display elements respectively overlapping the pixel areas. The upper display substrate includes a base substrate, a color filter layer, and a light control layer including transmission portions overlapping first pixel areas arranged in a first pixel column and first conversion portions overlapping second pixel areas arranged in a second pixel column, and a barrier layer including first barriers disposed between the first conversion portions and the transmission portions and first sub-barriers disposed between adjacent first conversion portions. A first shortest distance from the base substrate to a lower surface of each of the first barriers is equal to a second shortest distance from the base substrate to a lower surface of each of the first sub-barriers.Type: GrantFiled: January 29, 2020Date of Patent: March 16, 2021Assignee: Samsung Display Co., Ltd.Inventors: Sun-kyu Joo, Keunchan Oh, Byung-Chul Kim, Inok Kim, Jaemin Seong, Gakseok Lee, Jieun Jang, Inseok Song, Chang-Soon Jang
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Patent number: 10910593Abstract: An organic light emitting display device includes: a first substrate; a plurality of pixels on the first substrate, each of the pixels including a corresponding portion of an organic light emitting layer on the first substrate; an encapsulation film on the organic light emitting layer; a protruding pattern layer on the encapsulation film and comprising a plurality of spacers at a boundary between adjacent ones of the pixels; an adhesive layer on the protruding pattern layer; and a second substrate on the adhesive layer.Type: GrantFiled: February 14, 2019Date of Patent: February 2, 2021Assignee: Samsung Display Co., Ltd.Inventors: Sun Kyu Joo, Byung Chul Kim, In Ok Kim, Keun Chan Oh, Chang Soon Jang, In Seok Song, Gak Seok Lee
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Publication number: 20210005672Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.Type: ApplicationFiled: June 11, 2020Publication date: January 7, 2021Applicant: Samsung Display Co., LTD.Inventors: Gak Seok LEE, Byung Chul KIM, In Ok KIM, Jae Min SEONG, In Seok SONG, Keun Chan OH, Ji Eun JANG, Chang Soon JANG, Sun Kyu JOO, Ha Lim JI
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Patent number: 10868092Abstract: A display device includes a substrate, a thin film transistor on the substrate, an interlayer insulating layer on the thin film transistor, an electrode on the interlayer insulating layer, the electrode including an emission region, a contact region overlapping the thin film transistor, and a dummy region protruding from the emission region in a direction different from the contact region, and an emission layer on the electrode, the emission region of the electrode overlapping the emission layer.Type: GrantFiled: December 11, 2018Date of Patent: December 15, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sun-Kyu Joo, In Seok Song, Keun Chan Oh, Byung-chul Kim, In Ok Kim, Gak Seok Lee, Chang-Soon Jang
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Publication number: 20200388654Abstract: A display device includes: a first substrate; a second substrate on the first substrate; a pixel between the first substrate and the second substrate and including a pixel area and a non-pixel area around the pixel area; a color filter between the pixel and the second substrate and overlapping with the pixel area; and a plurality of protrusions between the second substrate and the color filter, and each of the protrusions has a width that decreases as a distance from the second substrate increases.Type: ApplicationFiled: March 31, 2020Publication date: December 10, 2020Inventors: GAK SEOK LEE, Byung-Chul KIM, INOK KIM, Jaemin SEONG, Inseok SONG, KEUNCHAN OH, Jieun JANG, Chang-Soon JANG, Sun-Kyu JOO
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Publication number: 20200365833Abstract: A display panel includes a base substrate including: a plurality of pixel regions and a peripheral region adjacent thereto; a pixel defining film disposed on the base substrate and having a plurality of openings, each of which corresponding to a respective one of the plurality of pixel regions; a plurality of light emitting elements disposed on the base substrate corresponding to the plurality of openings and configured to generate first color light; an encapsulation member disposed on the plurality of light emitting elements; a light shield pattern disposed on the encapsulation member and overlapping the peripheral region when viewed in a plan view; and a light control layer disposed on the encapsulation member and the light shield pattern and overlapping the plurality of pixel regions. The pixel defining film includes a first color material, and the light shield pattern includes a second color material different form the first color.Type: ApplicationFiled: April 13, 2020Publication date: November 19, 2020Inventors: Sun-Kyu JOO, Byung-Chul KIM, INOK KIM, JAECHEOL PARK, Jaemin SEONG, Inseok SONG, KEUNCHAN OH, GAK SEOK LEE, Jieun JANG, Chang-Soon JANG
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Patent number: 10804334Abstract: An organic light emitting diode display includes: a display panel; and a color conversion panel positioned on the display panel. The color conversion panel includes: a substrate; a color filter layer disposed under the substrate; a first light blocking layer disposed under the color filter layer; and a first color conversion layer, a second color conversion layer, and a third color conversion layer positioned under the first light blocking layer. The color filter layer includes a first color filter, a second color filter, and a third color filter, the first light blocking layer includes a first portion that overlaps the first color filter, a second portion that overlaps the second color filter, and a third portion that overlaps the third color filter, and the first portion, the second portion, and the third portion are connected.Type: GrantFiled: January 4, 2019Date of Patent: October 13, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: In Seok Song, Sun-Kyu Joo, Byung-Chul Kim, In Ok Kim, Gak Seok Lee, Chang-Soon Jang
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Publication number: 20200303465Abstract: A display panel includes an upper display substrate including pixel areas arranged in each of pixel columns and a light blocking area and a lower display substrate including display elements respectively overlapping the pixel areas. The upper display substrate includes a base substrate, a color filter layer, and a light control layer including transmission portions overlapping first pixel areas arranged in a first pixel column and first conversion portions overlapping second pixel areas arranged in a second pixel column, and a barrier layer including first barriers disposed between the first conversion portions and the transmission portions and first sub-barriers disposed between adjacent first conversion portions. A first shortest distance from the base substrate to a lower surface of each of the first barriers is equal to a second shortest distance from the base substrate to a lower surface of each of the first sub-barriers.Type: ApplicationFiled: January 29, 2020Publication date: September 24, 2020Inventors: Sun-kyu JOO, Keunchan OH, Byung-Chul KIM, lnok KIM, Jaemin SEONG, Gakseok LEE, Jieun JANG, lnseok SONG, Chang-Soon JANG