Patents by Inventor Byoung-jin CHO
Byoung-jin CHO 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: 11953783Abstract: Display apparatus includes LEDs, bottom chassis to accommodate the LEDs; and reflective member disposed on the bottom chassis. The reflective member includes a reflective bottom portion, and a reflective inclined portion obliquely formed to face a rear surface of the display panel which includes first regions that respectively correspond to LEDs located adjacent to the reflective inclined portion, and second regions each provided between two neighboring first regions and has a reflective characteristic different from a reflective characteristic of a neighboring first region. Second regions and neighboring first regions are on the reflective inclined portion having a uniform incline angle with respect to a side edge of the reflective bottom portion, the first regions include a group of light adjusting members, and the group of light adjusting members of each of the first regions is disposed to correspond to one of the LEDs disposed adjacent to the reflective inclined portion.Type: GrantFiled: February 28, 2023Date of Patent: April 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
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Patent number: 11919122Abstract: A substrate processing apparatus includes: a conveyor belt configured to have an outer surface on which a bottom surface of a substrate is seated; and a polishing head unit configured to face an upper surface of the substrate, wherein the polishing head unit includes: a polishing head connected to a driver; a polishing pad configured to face the polishing head; a polishing pad fixing ring disposed between the polishing head and the polishing pad; and a temperature sensor configured to overlap the polishing pad fixing ring and to be spaced apart from the polishing pad fixing ring.Type: GrantFiled: September 29, 2020Date of Patent: March 5, 2024Assignees: SAMSUNG DISPLAY CO., LTD., KCTECH CO., LTD.Inventors: Seung Bae Kang, Sung Hyeon Park, Jung Gun Nam, Joon-Hwa Bae, Kyung Bo Lee, Keun Woo Lee, Woo Jin Cho, Byoung Kwon Choo
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Patent number: 11747673Abstract: A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light.Type: GrantFiled: January 5, 2023Date of Patent: September 5, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Pil Jeon, Jong-hoi Kim, Kye Hoon Lee, Dae-hee Lee, Byoung-jin Cho, Suk-ju Choi
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Publication number: 20230205007Abstract: Display apparatus includes LEDs, bottom chassis to accommodate the LEDs; and reflective member disposed on the bottom chassis. The reflective member includes a reflective bottom portion, and a reflective inclined portion obliquely formed to face a rear surface of the display panel which includes first regions that respectively correspond to LEDs located adjacent to the reflective inclined portion, and second regions each provided between two neighboring first regions and has a reflective characteristic different from a reflective characteristic of a neighboring first region. Second regions and neighboring first regions are on the reflective inclined portion having a uniform incline angle with respect to a side edge of the reflective bottom portion, the first regions include a group of light adjusting members, and the group of light adjusting members of each of the first regions is disposed to correspond to one of the LEDs disposed adjacent to the reflective inclined portion.Type: ApplicationFiled: February 28, 2023Publication date: June 29, 2023Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Byoung Jin CHO, Young Man AHN, Dae Hee LEE, Nae Won JANG, Hyeong Sik CHOI
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Publication number: 20230146908Abstract: A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light.Type: ApplicationFiled: January 5, 2023Publication date: May 11, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Pil JEON, Jong-hoi Kim, Kye Hoon Lee, Dae-hee Lee, Byoung-Jin Cho, Suk-Ju Choi
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Patent number: 11619846Abstract: Display apparatus includes LEDs, bottom chassis to accommodate the LEDs; and reflective member disposed on the bottom chassis. The reflective member includes a reflective bottom portion, and a reflective inclined portion obliquely formed to face a rear surface of the display panel which includes first regions that respectively correspond to LEDs located adjacent to the reflective inclined portion, and second regions each provided between two neighboring first regions and has a reflective characteristic different from a reflective characteristic of a neighboring first region. Second regions and neighboring first regions are on the reflective inclined portion having a uniform incline angle with respect to a side edge of the reflective bottom portion, the first regions include a group of light adjusting members, and the group of light adjusting members of each of the first regions is disposed to correspond to one of the LEDs disposed adjacent to the reflective inclined portion.Type: GrantFiled: January 5, 2022Date of Patent: April 4, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
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Patent number: 11579485Abstract: A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light.Type: GrantFiled: July 1, 2021Date of Patent: February 14, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Pil Jeon, Jong-hoi Kim, Kye Hoon Lee, Dae-hee Lee, Byoung-jin Cho, Suk-ju Choi
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Publication number: 20220128863Abstract: Display apparatus includes LEDs, bottom chassis to accommodate the LEDs; and reflective member disposed on the bottom chassis. The reflective member includes a reflective bottom portion, and a reflective inclined portion obliquely formed to face a rear surface of the display panel which includes first regions that respectively correspond to LEDs located adjacent to the reflective inclined portion, and second regions each provided between two neighboring first regions and has a reflective characteristic different from a reflective characteristic of a neighboring first region. Second regions and neighboring first regions are on the reflective inclined portion having a uniform incline angle with respect to a side edge of the reflective bottom portion, the first regions include a group of light adjusting members, and the group of light adjusting members of each of the first regions is disposed to correspond to one of the LEDs disposed adjacent to the reflective inclined portion.Type: ApplicationFiled: January 5, 2022Publication date: April 28, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin CHO, Young Man AHN, Dae Hee LEE, Nae Won JANG, Hyeong Sik CHOI
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Patent number: 11249347Abstract: A display apparatus includes LEDs disposed behind a display panel; a bottom chassis to accommodate the LEDs; and a reflective member disposed on the bottom chassis. The reflective member includes a reflective inclined portion obliquely formed to face a rear surface of the display panel and including first regions that respectively correspond to LEDs located adjacent to the reflective inclined portion, and second regions each of which is provided between two neighboring first regions. The first regions include light adjusting members, and each of the second regions has a reflective characteristic different from a reflective characteristic of a neighboring first region. Each of the first regions includes a group of light adjusting members which is disposed to correspond to one of the LEDs disposed adjacent to the reflective inclined portion. The two neighboring first regions have more light adjusting members, respectively, than one of the second regions disposed therebetween.Type: GrantFiled: September 30, 2020Date of Patent: February 15, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
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Patent number: 11237427Abstract: The disclosed embodiments relate to an ink composition for reflective sheet capable of preventing a luminance difference occurring at an upper or lower end of a display panel and display apparatus including the same and method of manufacturing the display apparatus. The display apparatus of the disclosed embodiment comprises a display panel to display an image, a light source configured to supply light to the display panel, a light guide plate configured to guide light emitted from the light source, a reflective sheet movable between a first state close to the lower surface of the light guide plate and a second state farther away from the lower surface of the light guide plate than the first state, and a reflective pattern provided on the reflective sheet and configured to be disposed in contact with the light guide plate in the first state, wherein the reflective pattern on the reflective sheet is formed of an acrylate resin including a multi-functional acrylate monomer.Type: GrantFiled: October 5, 2018Date of Patent: February 1, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Il Yong Jung, Young Chul Lee, Jong Bin Kim, Jong Pil Jeon, Byoung-Jin Cho, Jean Hur
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Patent number: 11237314Abstract: Provided is a display apparatus including: a liquid crystal panel configured to display an image; a light guide plate configured to guide light toward the liquid crystal panel; and a light source positioned adjacent to a side of the light guide plate, wherein the light guide plate includes a substrate having transparency, and a plurality of quantum dot capsules dispersed inside the substrate to change a color of light emitted from the light source.Type: GrantFiled: August 17, 2020Date of Patent: February 1, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kilhong Lee, Youngchol Lee, Hyunho Lee, Taehee Jeon, Byoung-Jin Cho, Suk-Ju Choi
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Publication number: 20210325728Abstract: A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light.Type: ApplicationFiled: July 1, 2021Publication date: October 21, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Pil JEON, Jong-hoi KIM, Kye Hoon LEE, Dae-hee LEE, Byoung-jin CHO, Suk-ju CHO
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Patent number: 11112648Abstract: A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light.Type: GrantFiled: December 20, 2019Date of Patent: September 7, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Pil Jeon, Jong-hoi Kim, Kye Hoon Lee, Dae-hee Lee, Byoung-Jin Cho, Suk-ju Choi
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Publication number: 20210200029Abstract: The disclosed embodiments relate to an ink composition for reflective sheet capable of preventing a luminance difference occurring at an upper or lower end of a display panel and display apparatus including the same and method of manufacturing the display apparatus. The display apparatus of the disclosed embodiment comprises a display panel to display an image, a light source configured to supply light to the display panel, a light guide plate configured to guide light emitted from the light source, a reflective sheet movable between a first state close to the lower surface of the light guide plate and a second state farther away from the lower surface of the light guide plate than the first state, and a reflective pattern provided on the reflective sheet and configured to be disposed in contact with the light guide plate in the first state, wherein the reflective pattern on the reflective sheet is formed of an acrylate resin including a multi-functional acrylate monomer.Type: ApplicationFiled: October 5, 2018Publication date: July 1, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Il Yong JUNG, Young Chul LEE, Jong Bin KIM, Jong Pil JEON, Byoung-Jin CHO, Jean HUR
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Publication number: 20210088708Abstract: Provided is a display apparatus including: a liquid crystal panel configured to display an image; a light guide plate configured to guide light toward the liquid crystal panel; and a light source positioned adjacent to a side of the light guide plate, wherein the light guide plate includes a substrate having transparency, and a plurality of quantum dot capsules dispersed inside the substrate to change a color of light emitted from the light source.Type: ApplicationFiled: August 17, 2020Publication date: March 25, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kilhong LEE, Youngchol Lee, Hyunho Lee, Taehee Jeon, Byoung-jin Cho, Suk-Ju Chol
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Publication number: 20210088848Abstract: Disclosed herein is a display apparatus and a control method thereof. The display apparatus includes a liquid crystal panel, a backlight unit including a light source module including a plurality of light sources, the backlight unit including a light guide plate configured to guide light emitted from the light source module to the liquid crystal panel, and a controller configured to control the liquid crystal panel and the backlight unit, and each of the plurality of light sources includes a first light emitting diode (LED) configured to emit a first light and a second LED configured to emit a second light in a color different from a color of the first light, and the controller determines current values to be applied to the first LED and the second LED based on a picture mode.Type: ApplicationFiled: August 13, 2020Publication date: March 25, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyungsuk KIM, Jongbin KIM, Youngmin LEE, Dukjin JEON, Byoung-Jin CHO, Suk-Ju CHOI
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Patent number: 10928675Abstract: Disclosed is a display apparatus including a display panel; and a light source assembly including: a plurality of first light sources disposed in a first region to supply first light toward the display panel; a light guide plate including: incident surface configured to receive second light; and an exit surface facing the display panel and configured to transmit the second light received from the incident surface of the light guide plate to the display panel; and a plurality of second light sources disposed on a periphery of the first region to supply the second light to the incident surface of the light guide plate.Type: GrantFiled: September 20, 2019Date of Patent: February 23, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Bin Kim, Byoung Jin Cho, Young Chol Lee, Ho Seok Lee, Nae Won Jang, Suk Ju Choi
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Publication number: 20210011341Abstract: A display apparatus includes LEDs disposed behind a display panel; a bottom chassis to accommodate the LEDs; and a reflective member disposed on the bottom chassis. The reflective member includes a reflective inclined portion obliquely formed to face a rear surface of the display panel and including first regions that respectively correspond to LEDs located adjacent to the reflective inclined portion, and second regions each of which is provided between two neighboring first regions. The first regions include light adjusting members, and each of the second regions has a reflective characteristic different from a reflective characteristic of a neighboring first region. Each of the first regions includes a group of light adjusting members which is disposed to correspond to one of the LEDs disposed adjacent to the reflective inclined portion. The two neighboring first regions have more light adjusting members, respectively, than one of the second regions disposed therebetween.Type: ApplicationFiled: September 30, 2020Publication date: January 14, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin CHO, Young Man AHN, Dae Hee LEE, Nae Won JANG, Hyeong Sik CHOI
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Patent number: 10845646Abstract: A display apparatus includes a display panel, LEDs disposed behind the display panel and spaced from the display panel to emit light toward the display panel, a bottom chassis having a rear portion on which the LEDs are disposed, and a reflective member disposed inside the bottom chassis and configured to reflect light incident from the LEDs toward the display panel. The reflective member includes a reflective inclined portion obliquely formed to face a rear surface of side portions of the display panel, first regions that respectively correspond to LEDs located adjacent the reflective inclined portion, and second regions provided between two neighboring first regions respectively and having a reflective characteristic different from a reflective characteristic of at least one among the two neighboring first regions.Type: GrantFiled: September 10, 2019Date of Patent: November 24, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
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Patent number: RE48689Abstract: A display device includes a light source to emit light, a light guide plate on which the light emitted from the light source is incident and which irradiates light through a first and a second surface of the light guide plate, a quantum dot sheet on which the light irradiated through the first surface of the light guide plate is incident and which irradiates blue light, green light and red light, a reflective sheet for reflecting the irradiated light to the light guide plate, and a light-converting material at an edge portion of the light guide plate, the quantum dot sheet and the reflective sheet, for converting the light into a yellow light, green light or red light. The light incident on the quantum dot sheet includes the light emitted from the light source and the yellow light, the green light or the red light.Type: GrantFiled: June 15, 2020Date of Patent: August 17, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung-Jin Cho, Dae-hee Lee, Kye Hoon Lee, Nae-Won Jang