Patents by Inventor KiSung LIM
KiSung LIM 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: 20240164127Abstract: A display device includes a substrate; a light emitting element disposed on the substrate; and a photoconversion layer disposed on the light emitting element and including a photoconversion structure body, of which a viewing angle and color purity are improved by preventing degradation of the quantum dot according to moisture and oxygen in accordance with the photoconversion structure body including a quantum dot and an inorganic protection layer coating a surface of the quantum dot in the photoconversion layer may be provided.Type: ApplicationFiled: August 17, 2023Publication date: May 16, 2024Applicant: LG Display Co., Ltd.Inventors: KiSung Lim, JinSu Moon, MyungWon Seo
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Patent number: 11803083Abstract: A backlight unit and a display device are disclosed. There may be provided a backlight unit and a display device with enhanced light absorption of light of an absorption wavelength band and enhanced color gamut, by including a color conversion layer (or color conversion film) for converting the wavelength band of the light emitted from a light source and a light absorption layer (or light absorption film) for absorbing light of a specific absorption wavelength band, in an area adjacent the light source.Type: GrantFiled: November 1, 2022Date of Patent: October 31, 2023Assignee: LG Display Co., Ltd.Inventors: KiSung Lim, JinSu Moon, MyungWon Seo, Hyunmin Park
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Patent number: 11803081Abstract: A color conversion plate and a display device are disclosed. Since a color conversion plate including a color conversion area and a transmissive area separated by a reflection barrier rib is in the path where light is supplied to the color filter, efficiency and purity of light supplied to the color filter is enhanced and the color gamut of the light emitted to the outside of the display device through the color filter is also enhanced.Type: GrantFiled: October 25, 2022Date of Patent: October 31, 2023Assignee: LG Display Co., Ltd.Inventors: KiSung Lim, JaeHo Lee
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Publication number: 20230205001Abstract: A color conversion plate and a display device are disclosed. Since a color conversion plate including a color conversion area and a transmissive area separated by a reflection barrier rib is in the path where light is supplied to the color filter, efficiency and purity of light supplied to the color filter is enhanced and the color gamut of the light emitted to the outside of the display device through the color filter is also enhanced.Type: ApplicationFiled: October 25, 2022Publication date: June 29, 2023Inventors: KiSung Lim, JaeHo Lee
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Publication number: 20230205009Abstract: A backlight unit and a display device are disclosed. There may be provided a backlight unit and a display device with enhanced light absorption of light of an absorption wavelength band and enhanced color gamut, by including a color conversion layer (or color conversion film) for converting the wavelength band of the light emitted from a light source and a light absorption layer (or light absorption film) for absorbing light of a specific absorption wavelength band, in an area adjacent the light source.Type: ApplicationFiled: November 1, 2022Publication date: June 29, 2023Inventors: KiSung Lim, JinSu Moon, MyungWon Seo, Hyunmin Park
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Patent number: 11585973Abstract: A backlight unit and a display device in which the amount of light emitted to the top surface of the backlight unit is increased, are provided. The backlight unit includes light sources disposed on a printed circuit substrate, a reflective layer disposed on at least a partial area of an area in which the plurality of light sources are not disposed on the printed circuit substrate, a color conversion light guide layer disposed on the light sources, a non-color conversion light guide layer disposed on a surface of the color conversion light guide layer, a transparent film disposed on the color conversion light guide layer and the non-color conversion light guide layer and spaced apart from the light sources and the reflective layer, and light diffusion patterns disposed on a surface of the transparent film and corresponding to each light source.Type: GrantFiled: October 14, 2021Date of Patent: February 21, 2023Assignee: LG DISPLAY CO., LTD.Inventor: KiSung Lim
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Publication number: 20220187525Abstract: A backlight unit and a display device in which the amount of light emitted to the top surface of the backlight unit is increased, are provided. The backlight unit includes light sources disposed on a printed circuit substrate, a reflective layer disposed on at least a partial area of an area in which the plurality of light sources are not disposed on the printed circuit substrate, a color conversion light guide layer disposed on the light sources, a non-color conversion light guide layer disposed on a surface of the color conversion light guide layer, a transparent film disposed on the color conversion light guide layer and the non-color conversion light guide layer and spaced apart from the light sources and the reflective layer, and light diffusion patterns disposed on a surface of the transparent film and corresponding to each light source.Type: ApplicationFiled: October 14, 2021Publication date: June 16, 2022Applicant: LG Display Co., Ltd.Inventor: KiSung LIM
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Patent number: 11143911Abstract: Embodiments of the present disclosure relate to a color conversion sheet, a backlight unit, and a display device, in which a color conversion sheet realizing white light from blue light includes a green reflection filter positioned between a green color conversion layer and a red color conversion layer, thereby independently exciting the green light and the red light and increasing the amount of green light supplied to the display panel while preventing the green light from being excited into red light. Therefore, it is possible to increase the brightness of white light supplied through the color conversion sheet and provide a backlight unit with improved luminance efficiency.Type: GrantFiled: July 16, 2020Date of Patent: October 12, 2021Assignee: LG DISPLAY CO., LTD.Inventor: KiSung Lim
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Publication number: 20210033926Abstract: Embodiments of the present disclosure relate to a color conversion sheet, a backlight unit, and a display device, in which a color conversion sheet realizing white light from blue light includes a green reflection filter positioned between a green color conversion layer and a red color conversion layer, thereby independently exciting the green light and the red light and increasing the amount of green light supplied to the display panel while preventing the green light from being excited into red light. Therefore, it is possible to increase the brightness of white light supplied through the color conversion sheet and provide a backlight unit with improved luminance efficiency.Type: ApplicationFiled: July 16, 2020Publication date: February 4, 2021Applicant: LG DISPLAY CO., LTD.Inventor: KiSung LIM
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Patent number: 10768660Abstract: A light-emitting audio device, an audio output device, and a display device. The light-emitting audio device includes a micro device integrated with a micro LED device and piezoelectric device. Both image display and audio output can be enabled using a single device. Audio is output using a plurality of light-emitting audio devices disposed in a plurality of subpixels, respectively. An increase in the thickness of the display device due to integrate with a audio function can be minimized. A variety of audio output functions are provided by driving the light-emitting audio devices according to areas.Type: GrantFiled: September 12, 2018Date of Patent: September 8, 2020Assignee: LG Display Co., Ltd.Inventors: KiSung Lim, DongRyul Jung
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Patent number: 10764692Abstract: A piezoelectric device and a display apparatus including the same are provided. A piezoelectric device includes: a first piezoelectric unit including a vibration-generating layer configured to vibrate at an input frequency based on a sound signal corresponding to the input frequency, and a second piezoelectric unit including: an air gap in the first piezoelectric unit, the air gap having a certain volume, and an air path connecting the air gap to an outer portion of the vibration-generating layer, the air path being configured to output a vibration.Type: GrantFiled: August 28, 2019Date of Patent: September 1, 2020Assignee: LG Display Co., Ltd.Inventors: KiSung Lim, Jaekyung Kang, DongRyul Jung, Sujin Chang
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Publication number: 20200077200Abstract: A piezoelectric device and a display apparatus including the same are provided. A piezoelectric device includes: a first piezoelectric unit including a vibration-generating layer configured to vibrate at an input frequency based on a sound signal corresponding to the input frequency, and a second piezoelectric unit including: an air gap in the first piezoelectric unit, the air gap having a certain volume, and an air path connecting the air gap to an outer portion of the vibration-generating layer, the air path being configured to output a vibration.Type: ApplicationFiled: August 28, 2019Publication date: March 5, 2020Applicant: LG Display Co., Ltd.Inventors: KiSung LIM, Jaekyung KANG, DongRyul JUNG, Sujin CHANG
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Publication number: 20190187748Abstract: A light-emitting audio device, an audio output device, and a display device. The light-emitting audio device includes a micro device integrated with a micro LED device and piezoelectric device. Both image display and audio output can be enabled using a single device. Audio is output using a plurality of light-emitting audio devices disposed in a plurality of subpixels, respectively. An increase in the thickness of the display device due to integrate with a audio function can be minimized. A variety of audio output functions are provided by driving the light-emitting audio devices according to areas.Type: ApplicationFiled: September 12, 2018Publication date: June 20, 2019Applicant: LG Display Co., Ltd.Inventors: KiSung LIM, DongRyul JUNG