Patents by Inventor Joo-woan Cho
Joo-woan 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).
-
Patent number: 12295194Abstract: A display device includes a backplane line disposed on a substrate, a protective layer overlapping the backplane line, a first electrode disposed on the protective layer, a light emitting element electrically connected to the first electrode, and a reflective pattern including a reflective material and disposed between the substrate and the first electrode, the reflective pattern overlaps the backplane line in a plan view.Type: GrantFiled: December 23, 2021Date of Patent: May 6, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyung Il Jeon, Sung Kook Park, Ki Seong Seo, So Yeon Yoon, Joo Woan Cho
-
Patent number: 12295186Abstract: A display device includes a first electrode disposed on a substrate; a light emitting element disposed on the first electrode, the light emitting element being electrically connected to the first electrode; a second electrode disposed on the light emitting element, the second electrode being electrically connected to the light emitting element; a meta structure disposed on the second electrode, the meta structure overlapping the light emitting element; and a bank pattern disposed on the substrate, the bank pattern being spaced apart from the light emitting element.Type: GrantFiled: December 22, 2021Date of Patent: May 6, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byung Choon Yang, Sung Kook Park, Dae Ho Song, Hyung Il Jeon, Joo Woan Cho, Jin Woo Choi
-
Publication number: 20250143014Abstract: A method for manufacturing a display device includes manufacturing an epitaxial wafer including an epitaxial thin film, dividing the epitaxial wafer into wafer dies having a size corresponding to an area of each cell area of a backplane substrate including cell areas, transferring the wafer dies to a carrier substrate, forming a conductive bonding layer on epitaxial dies of the wafer dies, disposing the carrier substrate on the backplane substrate such that the epitaxial dies are disposed in each cell area of the backplane substrate and bonding the epitaxial dies onto the backplane substrate, removing the carrier substrate from the epitaxial dies, and etching the epitaxial dies to form respective light emitting elements in emission areas included in each cell area of the backplane substrate.Type: ApplicationFiled: June 13, 2024Publication date: May 1, 2025Applicant: Samsung Display Co., LTD.Inventors: Jun Bo SIM, Jun Youn KIM, Joo Woan CHO, Jin Taek PARK, So Young YEO, Dong Eon LEE, Jae Hoon JUNG
-
Publication number: 20250056935Abstract: According to some embodiments of the present disclosure, there is provided a display device including a substrate, a light emitting element on the substrate and emitting first light, a wavelength conversion layer on the light emitting element and including wavelength conversion particles for converting the first light into second light, a first selective transmission film between the light emitting element and the wavelength conversion layer and reflecting the first light and the second light, which are incident from the wavelength conversion layer, and a second selective transmission film on the wavelength conversion layer and reflecting the first light incident from the wavelength conversion layer and transmitting the second light.Type: ApplicationFiled: August 20, 2024Publication date: February 13, 2025Inventors: Joo Woan CHO, Jin Woo CHOI, Byung Choon YANG, Tae Hee LEE, Hae Yun CHOI
-
Patent number: 12211968Abstract: There is provided a display device including a display panel including first panel pads arranged along a plurality of rows, each of the rows extending in a first direction in a plan view, wires extending in a second direction crossing the first direction, each of the wires including a first bonding portion attached to a corresponding one of the first panel pads, and a first circuit board including first pads connected to the wires. The first panel pads in a first row of the plurality of rows in a plan view are exposed in the second direction crossing the first direction between the first panel pads in a second row neighboring to the first row of the plurality of rows.Type: GrantFiled: April 22, 2022Date of Patent: January 28, 2025Assignee: Samsung Display Co., Ltd.Inventors: Tae Hee Lee, Sung Kook Park, Joo Woan Cho, Jin Woo Choi, Hae Yun Choi
-
Publication number: 20240363596Abstract: The present disclosure may provide a display device. According to one or more embodiments, the display device includes a first display panel for emitting a first light, a second display panel for emitting second light, a third display panel for emitting third light, and a light coupler for combining the first light, the second light, and the third light, and for outputting combined light, and a circuit board on a first surface of the light coupler, and electrically connected to the first display panel, to the second display panel, and to the third display panel, wherein the first display panel, the second display panel, and the third display panel are respectively on a second surface, a third surface, and a fourth surface of the light coupler.Type: ApplicationFiled: January 17, 2024Publication date: October 31, 2024Inventors: Joo Woan CHO, Jin Taek PARK, Byeong Hwa CHOI, Jae Ho CHOI, Hae Yun CHOI
-
Publication number: 20240339489Abstract: A display device includes a first substrate including a display area, a non-display area, and a plurality of pixel circuit units in the display area and the non-display area, a plurality of light emitting elements on the first substrate in the display area, the plurality of light emitting elements being electrically connected to the pixel circuit units, a hole mask layer on the first substrate and including a plurality of holes corresponding to the light emitting elements, a second substrate on the hole mask layer and including a plurality of open holes corresponding to the plurality of holes, and a plurality of light exit patterns in the plurality of the open holes of the second substrate corresponding to the plurality of holes, wherein each of the light exit patterns includes a first part in one of the plurality of open holes.Type: ApplicationFiled: June 17, 2024Publication date: October 10, 2024Inventors: Joo Woan CHO, Dae Ho SONG, Tae Hee LEE, Hyung Il JEON, Byeong Hwa CHOI
-
Patent number: 12074263Abstract: According to some embodiments of the present disclosure, there is provided a display device including a substrate, a light emitting element on the substrate and emitting first light, a wavelength conversion layer on the light emitting element and including wavelength conversion particles for converting the first light into second light, a first selective transmission film between the light emitting element and the wavelength conversion layer and reflecting the first light and the second light, which are incident from the wavelength conversion layer, and a second selective transmission film on the wavelength conversion layer and reflecting the first light incident from the wavelength conversion layer and transmitting the second light.Type: GrantFiled: December 23, 2021Date of Patent: August 27, 2024Assignee: Samsung Display Co., Ltd.Inventors: Joo Woan Cho, Jin Woo Choi, Byung Choon Yang, Tae Hee Lee, Hae Yun Choi
-
Patent number: 12015048Abstract: A display device includes a first substrate including a display area, a non-display area, and a plurality of pixel circuit units in the display area and the non-display area, a plurality of light emitting elements on the first substrate in the display area, the plurality of light emitting elements being electrically connected to the pixel circuit units, a hole mask layer on the first substrate and including a plurality of holes corresponding to the light emitting elements, a second substrate on the hole mask layer and including a plurality of open holes corresponding to the plurality of holes, and a plurality of light exit patterns in the plurality of the open holes of the second substrate corresponding to the plurality of holes, wherein each of the light exit patterns includes a first part in one of the plurality of open holes.Type: GrantFiled: January 6, 2022Date of Patent: June 18, 2024Assignee: Samsung Display Co., Ltd.Inventors: Joo Woan Cho, Dae Ho Song, Tae Hee Lee, Hyung Il Jeon, Byeong Hwa Choi
-
Publication number: 20240184119Abstract: A wearable device includes: a main frame configured to be mounted on a user's body; an image display module on the main frame and configured to display an image; a lens frame on an image display surface of the image display module, the lens frame being configured to refract image display light emitted from the image display module; a multi-channel lens forming an emission path of the image display light refracted by the lens frame for each of a plurality of channels; and an eyeball protection module on the main frame and configured to spray air, moisture, or a tear solution to the user's left and right eyes.Type: ApplicationFiled: August 10, 2023Publication date: June 6, 2024Inventors: Tae Hee LEE, Kyung Ho KIM, Young Seok SEO, Joo Woan CHO, Byeong Hwa CHOI
-
Publication number: 20240170605Abstract: A manufacturing apparatus of a display device, includes: a first unit to transfer a plurality of light emitting elements on a growth substrate to a first film; a second unit to expand the first film; a third unit to retransfer the plurality of light emitting elements to a second film; a fourth unit to determine positions of the plurality of light emitting elements on the second film; a fifth unit to bin the light emitting elements on the second film, and determine an effective light source from among the light emitting elements; a sixth unit to form a plurality of pixels on a substrate, each pixel including a first bonding electrode; a seventh unit to remove the second film after transferring one light emitting element to the first bonding electrode of one pixel; and an eighth unit to form a second electrode on the one light emitting element.Type: ApplicationFiled: January 29, 2024Publication date: May 23, 2024Inventors: Jin Woo CHOI, Min Woo KIM, Sung Kook PARK, Dae Ho SONG, So Yeon YOON, Joo Woan CHO
-
Publication number: 20240120214Abstract: An apparatus for fabricating a display panel, the apparatus including: a loading module configured to accommodate a large-area fabricating substrate, the loading module being configured to adjust an inclination of the large-area fabricating substrate from a rear surface of the large-area fabricating substrate and to press the large-area fabricating substrate; and an element transfer module configured to transfer a plurality of light emitting elements or an integrated circuit onto the large-area fabricating substrate and configured to bond and press a wafer on which the plurality of light emitting elements or the at least one integrated circuit is located onto the large-area fabricating substrate.Type: ApplicationFiled: September 18, 2023Publication date: April 11, 2024Inventors: Tae Hee LEE, Kyung Ho KIM, Young Seok SEO, Joo Woan CHO, Byeong Hwa CHOI
-
Publication number: 20240120324Abstract: An apparatus for fabricating a display panel, including a film fixing module configured to fix a stretched film on which a plurality of light emitting elements are arranged, a film pressurizing module configured to pressurize the stretched film, a first thickness detection module configured to detect, at each pressurization step, a modulus of elasticity and a change in thickness of the stretched film that is pressurized and stretched by the film pressurizing module, a second thickness detection module configured to detect, at each pressurization step, a change in thickness of an adhesive applied in a front direction of the stretched film, an image detection module configured to photograph the plurality of light emitting elements arranged on the stretched film for each pressurization step and to detect a change in arrangement information of the light emitting elements, and a main processor configured to database feature change information.Type: ApplicationFiled: September 6, 2023Publication date: April 11, 2024Inventors: Tae Hee LEE, Kyung Ho KIM, Young Seok SEO, Joo Woan CHO, Byeong Hwa CHO
-
Patent number: 11947744Abstract: The present disclosure relates to a device for providing augmented reality that can accurately recognize a writing tool such as an electronic pen to realize motion information of the writing tool over augmented reality contents, and a method for providing augmented reality using the same. According to some embodiments of the disclosure, an augmented reality device includes at least one transparent lens, a support frame supporting the at least one transparent lens, at least one display module configured to display augmented reality contents through the at least one transparent lens, a sensing module at a front of the support frame, and configured to generate image data, and a control module configured to receive motion-sensing signals of an electronic pen to detect motion information of the electronic pen, and configured to modulate the augmented reality contents so that the motion information of the electronic pen is includes therein.Type: GrantFiled: July 21, 2022Date of Patent: April 2, 2024Assignee: Samsung Display Co., Ltd.Inventors: Tae Hee Lee, Byung Choon Yang, Joo Woan Cho, Byeong Hwa Choi, Hae Yun Choi
-
Patent number: 11943961Abstract: An electronic device includes a display panel, a first optical part, and a second optical part including a diffraction optical element having a diffraction grating. The display panel include a first display area for displaying a first image having a first color, a second display area disposed adjacent to the first display area to display a second image having a second color different from the first color, and a third display area disposed adjacent to the second display area to display a third image having a third color different from the first color and the second color.Type: GrantFiled: July 24, 2020Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Cheonmyeong Lee, Youngchan Kim, Byungchoon Yang, Jaeho You, Jiwon Lee, Joo Woan Cho
-
Publication number: 20240072216Abstract: A display device comprises a substrate including a plurality of light emitting areas, a partition wall portion provided on the substrate and partitioning the plurality of light emitting areas, and a plurality of light emitting parts provided on the substrate and respectively corresponding to the plurality of light emitting areas, wherein at least one of the plurality of light emitting parts includes a light emitting element provided on the substrate, and a first color conversion layer covering the light emitting element and including first inorganic particles, and the first inorganic particles include Nd2(Si, Ti, Ge)2O7.Type: ApplicationFiled: June 6, 2023Publication date: February 29, 2024Inventors: Ji Wook MOON, Byung Choon YANG, Ki Seong SEO, Joo Woan CHO
-
Patent number: 11888086Abstract: A manufacturing apparatus of a display device, includes: a first unit to transfer a plurality of light emitting elements on a growth substrate to a first film; a second unit to expand the first film; a third unit to retransfer the plurality of light emitting elements to a second film; a fourth unit to determine positions of the plurality of light emitting elements on the second film; a fifth unit to bin the light emitting elements on the second film, and determine an effective light source from among the light emitting elements; a sixth unit to form a plurality of pixels on a substrate, each pixel including a first bonding electrode; a seventh unit to remove the second film after transferring one light emitting element to the first bonding electrode of one pixel; and an eighth unit to form a second electrode on the one light emitting element.Type: GrantFiled: December 16, 2021Date of Patent: January 30, 2024Assignee: Samsung Display Co., Ltd.Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Dae Ho Song, So Yeon Yoon, Joo Woan Cho
-
Publication number: 20230231071Abstract: An apparatus for fabricating a display panel includes: a chamber; a first process driver configured to sequentially perform dispensing and coating processes on a display substrate or a light-emitting diode substrate in an internal processing space of the chamber; a second process driver configured to selectively perform at least one process selected from among moving, dipping, laminating, bonding, and laser irradiating processes on the display substrate or the light-emitting diode substrate; and a third process driver where the dipping and laminating processes on the display substrate or the light-emitting diode substrate are performed.Type: ApplicationFiled: December 27, 2022Publication date: July 20, 2023Inventors: Hae Yun CHOI, Min Woo KIM, Dae Ho SONG, Tae Hee LEE, Joo Woan CHO
-
Publication number: 20230215903Abstract: A display device includes: a substrate; a first pixel electrode on the substrate; a second pixel electrode on the substrate and spaced apart from the first pixel electrode; a first light emitting element on the first pixel electrode and configured to emit first light; a first connection electrode on the second pixel electrode; a first partition wall between a side surface of the first light emitting element and a side surface of the first connection electrode; a second light emitting element on the first connection electrode and configured to emit second light; and a common electrode on an upper surface of the first light emitting element and an upper surface of the second light emitting element.Type: ApplicationFiled: September 21, 2022Publication date: July 6, 2023Inventors: Hyung Il JEON, Byung Choon YANG, Tae Hee LEE, Joo Woan CHO, Byeong Hwa CHOI, Hae Yun CHOI
-
Publication number: 20230095842Abstract: A display device includes a circuit board including a first circuit portion, a second circuit portion, and a third circuit portion, a first display panel on the first circuit portion, and configured to emit a first light, a second display panel on the second circuit portion, and configured to emit a second light, a third display panel on the third circuit portion, and configured to emit a third light, and an optical combiner configured to combine the first light, the second light, and the third light to output a light.Type: ApplicationFiled: May 3, 2022Publication date: March 30, 2023Inventors: Sung Eun BAEK, Jin Woo CHOI, Joo Woan CHO, Sung Kook PARK