Patents by Inventor Chi-O Cho
Chi-O 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: 9978973Abstract: An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.Type: GrantFiled: February 22, 2017Date of Patent: May 22, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Chi-O Cho, Byungchoon Yang, Young-Jun Seo, Won Sang Park
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Patent number: 9899625Abstract: A display device includes pixels, each pixel including a first electrode, a first organic layer disposed on the first electrode, and a second electrode disposed on the first organic layer, in which the first electrode includes a first overlapping electrode portion overlapping each of the first organic layer and the second electrode, and a first non-overlapping electrode portion not overlapping the first organic layer and the second electrode, and connected to the first overlapping electrode portion.Type: GrantFiled: December 2, 2015Date of Patent: February 20, 2018Assignee: Samsung Display Co., LtdInventors: Hyesog Lee, Chi-o Cho, Jaejoong Kwon, Byungchoon Yang
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Publication number: 20180019377Abstract: A light emitting device includes first and second electrodes spaced apart from each other on a substrate, at least one bar-type LED having a first end on the first electrode and a second end on the second electrode, and an insulative support body between the substrate and the bar-type LED. The at least one bar-type LED has a length greater than a width.Type: ApplicationFiled: July 13, 2017Publication date: January 18, 2018Inventors: Dae Hyun KIM, Jong Hyuk KANG, Joo Yeol LEE, Hyun Deok IM, Chi O CHO, Hyun Min CHO
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Publication number: 20180019426Abstract: A light emitting device includes a plurality of unit light emitting regions on a substrate. At least one of the unit light emitting regions includes at least one pair of first and second electrodes that are spaced apart, at least one first bar-type LED in a first layer on the substrate, and at least one second bar-type LED in a second layer on the substrate. At least one of the first bar-type LED or the second bar-type LED is electrically connected between the first electrode and the second electrode.Type: ApplicationFiled: July 14, 2017Publication date: January 18, 2018Inventors: Hyun Deok IM, Jong Hyuk KANG, Dae Hyun KIM, Joo Yeol LEE, Chi O CHO, Hyun Min CHO
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Publication number: 20170162815Abstract: An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.Type: ApplicationFiled: February 22, 2017Publication date: June 8, 2017Inventors: Chi-O CHO, Byungchoon YANG, Young-Jun SEO, Won Sang PARK
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Patent number: 9620737Abstract: An organic light emitting display apparatus includes a substrate including a pixel region, a first electrode on the substrate, a second electrode on the first electrode, an organic light emission layer between the first and second electrodes to emit light, a plurality of layers on the second electrode, and a light compensation pattern on the second electrode and overlapping the pixel region, the light compensation pattern including a plurality of protrusion patterns having progressively decreasing widths as a distance from a center of the pixel region increases, and a plurality of grooves separating the protrusions in a direction parallel to the substrate from the center of the pixel region.Type: GrantFiled: February 4, 2016Date of Patent: April 11, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyesog Lee, Chi-o Cho
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Patent number: 9583727Abstract: An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.Type: GrantFiled: November 5, 2015Date of Patent: February 28, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Chi-O Cho, Byungchoon Yang, Young-Jun Seo, Won Sang Park
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Patent number: 9508280Abstract: A method of compensating color of a transparent display device includes generating a first pixel data by adding an input image pixel data and an external optical data which represents an effect of an external light on the transparent display device, generating a second pixel data having the same color as the input image pixel data by scaling the first pixel data, and generating an output image pixel data by subtracting the external optical data from the second pixel data.Type: GrantFiled: October 29, 2014Date of Patent: November 29, 2016Assignee: Samsung Display Co., Ltd.Inventors: Young-Jun Seo, Byung-Choon Yang, Chi-O Cho
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Publication number: 20160336528Abstract: A display device includes pixels, each pixel including a first electrode, a first organic layer disposed on the first electrode, and a second electrode disposed on the first organic layer, in which the first electrode includes a first overlapping electrode portion overlapping each of the first organic layer and the second electrode, and a first non-overlapping electrode portion not overlapping the first organic layer and the second electrode, and connected to the first overlapping electrode portion.Type: ApplicationFiled: December 2, 2015Publication date: November 17, 2016Inventors: Hyesog LEE, Chi-o CHO, Jaejoong KWON, Byungchoon YANG
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Publication number: 20160327720Abstract: A quantum rod sheet includes: a first support layer including a plurality of grooves which extends substantially in a predetermined direction; a plurality of quantum rods arranged substantially in the predetermined direction along the grooves of the first support layer; and a second support layer which covers the first support layer and the quantum rods.Type: ApplicationFiled: July 22, 2016Publication date: November 10, 2016Inventors: Chi-O CHO, Dong Hoon KIM, Sang Woo HA
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Publication number: 20160285043Abstract: An organic light emitting display apparatus includes a substrate including a pixel region, a first electrode on the substrate, a second electrode on the first electrode, an organic light emission layer between the first and second electrodes to emit light, a plurality of layers on the second electrode, and a light compensation pattern on the second electrode and overlapping the pixel region, the light compensation pattern including a plurality of protrusion patterns having progressively decreasing widths as a distance from a center of the pixel region increases, and a plurality of grooves separating the protrusions in a direction parallel to the substrate from the center of the pixel region.Type: ApplicationFiled: February 4, 2016Publication date: September 29, 2016Inventors: Hyesog LEE, Chi-o CHO
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Patent number: 9427933Abstract: A quantum rod sheet includes: a first support layer including a plurality of grooves which extends substantially in a predetermined direction; a plurality of quantum rods arranged substantially in the predetermined direction along the grooves of the first support layer; and a second support layer which covers the first support layer and the quantum rods.Type: GrantFiled: June 11, 2014Date of Patent: August 30, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Chi-O Cho, Dong Hoon Kim, Sang Woo Ha
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Publication number: 20160211471Abstract: An exemplary embodiment provides a stretchable display device which is stretched in at least one direction. The stretchable display device according to the exemplary embodiment includes a stretchable substrate, a display unit, a plurality of rigid lenses, and a transparent elastic part. The display unit is on the stretchable substrate, and includes a plurality of light sources and a plurality of stretchable electrodes. The rigid lenses are disposed to correspond to the plurality of light sources, respectively. The transparent elastic part encloses the plurality of rigid lenses on the display unit and is stretched along with the stretched substrate and when being stretched, forms lens surfaces corresponding to the plurality of rigid lenses, respectively.Type: ApplicationFiled: July 7, 2015Publication date: July 21, 2016Inventors: Jae Joong KWON, Chi-O CHO, Sang-Il PARK
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Patent number: 9391286Abstract: An exemplary embodiment provides a stretchable display device which is stretched in at least one direction. The stretchable display device according to the exemplary embodiment includes a stretchable substrate, a display unit, a plurality of rigid lenses, and a transparent elastic part. The display unit is on the stretchable substrate, and includes a plurality of light sources and a plurality of stretchable electrodes. The rigid lenses are disposed to correspond to the plurality of light sources, respectively. The transparent elastic part encloses the plurality of rigid lenses on the display unit and is stretched along with the stretched substrate and when being stretched, forms lens surfaces corresponding to the plurality of rigid lenses, respectively.Type: GrantFiled: July 7, 2015Date of Patent: July 12, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Joong Kwon, Chi-O Cho, Sang-Il Park
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Patent number: 9310047Abstract: A display apparatus includes a curved display panel having a first curvature; and a plurality of light source units arranged along the first curvature the display panel. Each light source unit includes a reflective part including a reflective upper surface which has a second curvature different from the first curvature of the display panel; and a light source part which is at a first side of the reflective part, and includes a light source which generates and provides a light to the reflective surface.Type: GrantFiled: April 11, 2013Date of Patent: April 12, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang-Wook Choi, JooYoung Kim, Chi-O Cho, Insun Hwang
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Publication number: 20160056399Abstract: An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.Type: ApplicationFiled: November 5, 2015Publication date: February 25, 2016Inventors: Chi-O CHO, Byungchoon YANG, Young-Jun SEO, WonSang PARK
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Publication number: 20150356902Abstract: A method of compensating color of a transparent display device includes generating a first pixel data by adding an input image pixel data and an external optical data which represents an effect of an external light on the transparent display device, generating a second pixel data having the same color as the input image pixel data by scaling the first pixel data, and generating an output image pixel data by subtracting the external optical data from the second pixel data.Type: ApplicationFiled: October 29, 2014Publication date: December 10, 2015Inventors: Young-Jun SEO, Byung-Choon YANG, Chi-O CHO
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Patent number: 9184403Abstract: An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.Type: GrantFiled: July 30, 2014Date of Patent: November 10, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Chi-O Cho, Byungchoon Yang, Young-Jun Seo, WonSang Park
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Publication number: 20150115217Abstract: An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.Type: ApplicationFiled: July 30, 2014Publication date: April 30, 2015Inventors: Chi-O CHO, Byungchoon YANG, Young-Jun SEO, WonSang PARK
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Publication number: 20140362556Abstract: A quantum rod sheet includes: a first support layer including a plurality of grooves which extends substantially in a predetermined direction; a plurality of quantum rods arranged substantially in the predetermined direction along the grooves of the first support layer; and a second support layer which covers the first support layer and the quantum rods.Type: ApplicationFiled: June 11, 2014Publication date: December 11, 2014Inventors: Chi-O CHO, Dong Hoon KIM, Sang Woo HA