Patents by Inventor Yong-Seok Yeo
Yong-Seok Yeo 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: 11974455Abstract: A display device includes a substrate; a light-emitting element layer on the substrate; a first thin-film encapsulation layer that is on the light-emitting element layer, has an upper surface conforming an upper surface of the light-emitting element layer, and includes a recessed portion; a bank layer on the first thin-film encapsulation layer and having an opening overlapping the recessed portion; a wavelength conversion layer in the opening on the first thin-film encapsulation layer and at least partially in the recessed portion; a first inorganic layer on the bank layer and the wavelength conversion layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer.Type: GrantFiled: September 3, 2021Date of Patent: April 30, 2024Assignee: Samsung Display Co., Ltd.Inventors: Myung Chul Yeo, Yong Tack Kim, Eung Seok Park, Hee Wook Yoon, Yoon Hyeung Cho
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Patent number: 10679538Abstract: A haptic display device is disclosed. In one aspect, the device includes a plurality of scan lines disposed over a substrate and configured to transfer a scan signal and a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines. The device also includes a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal and a thin film transistor electrically connected to the scan lines and the data lines, wherein the thin film transistor is formed in each of a plurality of pixels. The device further includes a first electrode electrically connected to the thin film transistor, a second electrode facing the first electrode and an optical adjustment member disposed between the first and second electrodes.Type: GrantFiled: February 7, 2018Date of Patent: June 9, 2020Assignee: Samsung Display Co., Ltd.Inventors: Yong-Seok Yeo, Yi-Joon Ahn
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Publication number: 20180165999Abstract: A haptic display device is disclosed. In one aspect, the device includes a plurality of scan lines disposed over a substrate and configured to transfer a scan signal and a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines. The device also includes a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal and a thin film transistor electrically connected to the scan lines and the data lines, wherein the thin film transistor is formed in each of a plurality of pixels. The device further includes a first electrode electrically connected to the thin film transistor, a second electrode facing the first electrode and an optical adjustment member disposed between the first and second electrodes.Type: ApplicationFiled: February 7, 2018Publication date: June 14, 2018Inventors: Yong-Seok Yeo, Yi-Joon Ahn
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Patent number: 9934711Abstract: A haptic display device is disclosed. In one aspect, the device includes a plurality of scan lines disposed over a substrate and configured to transfer a scan signal and a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines. The device also includes a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal and a thin film transistor electrically connected to the scan lines and the data lines, wherein the thin film transistor is formed in each of a plurality of pixels. The device further includes a first electrode electrically connected to the thin film transistor, a second electrode facing the first electrode and an optical adjustment member disposed between the first and second electrodes.Type: GrantFiled: June 24, 2013Date of Patent: April 3, 2018Assignee: Samsung Display Co., Ltd.Inventors: Yong-Seok Yeo, Yi-Joon Ahn
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Patent number: 9425421Abstract: A display device including a first substrate; a display element layer on the first substrate; a second substrate on the display element layer; and a spacer layer between the first substrate and the second substrate.Type: GrantFiled: March 13, 2013Date of Patent: August 23, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Yong-Seok Yeo
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Patent number: 9232571Abstract: A flexible display device includes a flexible display panel, a plurality of supports on a first surface of the flexible display panel, the plurality of supports being spaced apart from each other, and an actuator on the first surface of the flexible display panel, the actuator being between the supports. The actuator includes an electroactive polymer layer, and a first electrode layer and a second electrode layer that are respectively arranged on an upper surface and a lower surface of the electroactive polymer layer, and the actuator having a property such that when a voltage is applied to the first electrode layer and the second electrode layer, an area of the electroactive polymer layer is changed.Type: GrantFiled: November 15, 2012Date of Patent: January 5, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yi-Joon Ahn, Katsumasa Yoshii, Jong-In Baek, Dae-Sung Choi, Yong-Seok Yeo, Ki-Seo Kim
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Patent number: 9057897Abstract: A liquid crystal display device includes a first substrate, a first electrode on the first substrate, a second substrate facing the first substrate, a second electrode on the second substrate facing the first electrode, and a liquid crystal structure between the first electrode and the second electrode. The liquid crystal structure includes a polymer network and liquid crystal molecules. The liquid crystal display device operates in a transmissive mode when an electric field is not generated between the first and the second electrodes, and operates in a scattering mode when the electric field is generated between the first and the second electrodes.Type: GrantFiled: January 23, 2013Date of Patent: June 16, 2015Assignee: Samsung Display Co., Ltd.Inventors: Jae-Ik Lim, Jae-Hyun Kim, Gee-Bum Kim, Yong-Seok Yeo
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Patent number: 9053651Abstract: Provided is a flexible display device including a display body having flexibility; an actuator for changing and driving the display body; and an initial shape forming substrate for maintaining an initial state of the display body before the display body is changed and driven. The flexible display device allows a user to exactly control a change state of the flexible display device by driving the actuator and to decrease power consumption for changing and driving the flexible display device. Thus, by using the flexible display device, user convenience can be improved and the flexible display device can be driven with low power consumption.Type: GrantFiled: June 26, 2013Date of Patent: June 9, 2015Assignee: Samsung Display Co., Ltd.Inventors: Yong-Seok Yeo, Kee-Han Uh
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Patent number: 9041879Abstract: A liquid crystal display device includes a first substrate, a first electrode on the first substrate, a second substrate opposed to the first substrate, and a second electrode on the second substrate. The second electrode corresponds to the first electrode. The liquid crystal display device also includes a liquid crystal structure between the first electrode and the second electrode. The liquid crystal structure includes a plurality of liquid crystal molecules and at least one movement control member. The movement control member in the liquid crystal structure restricts a movement of the liquid crystal molecules.Type: GrantFiled: June 21, 2011Date of Patent: May 26, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gee-Bum Kim, Jae-Hyun Kim, Won-Sang Park, Jae-Ik Lim, Yong-Seok Yeo, Jong-In Baek
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Patent number: 8988642Abstract: A liquid crystal display device includes: a first substrate; a first electrode on a first face of the first substrate; a second substrate opposed to the first substrate; a second electrode on a first face of the second substrate, the second electrode corresponding to the first electrode; and a liquid crystal structure between the first substrate and the second substrate, the liquid crystal structure including liquid crystal capsules.Type: GrantFiled: October 20, 2011Date of Patent: March 24, 2015Assignee: Samsung Display Co., Ltd.Inventors: Jae-Ik Lim, Jae-Hyun Kim, Jong-in Baek, Yong-Seok Yeo, Gee-Bum Kim, Won-Sang Park
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Patent number: 8975812Abstract: A polarization structure for a display device is disclosed. In one embodiment, the structure includes a retardation layer, a first polarizing layer, a first uniaxial optical compensation layer, a second polarizing layer and a second uniaxial optical compensation layer. The retardation layer may be configured to create a phase difference between two polarization components of an incident light. The first polarizing layer may be disposed on the retardation layer. The first uniaxial optical compensation layer may be disposed on the first polarizing layer. The second polarizing layer may be disposed on the first uniaxial optical compensation layer. The second uniaxial optical compensation layer may be disposed between the first polarizing layer and the first uniaxial optical compensation layer or between the first polarizing layer and the second polarizing layer.Type: GrantFiled: September 13, 2012Date of Patent: March 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Jae-Ik Lim, Man-Seob Choi, Yi-Joon Ahn, Gee-Bum Kim, Yong-Seok Yeo
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Patent number: 8970530Abstract: A device, such as a display device, including a plurality of vibration plates oscillating in response to one or more oscillation signals. While at least one of first vibration plates among the plurality of vibration plates are oscillating, effective oscillation does not occur in at least one of second vibration plates among the plurality of vibration plates.Type: GrantFiled: January 30, 2013Date of Patent: March 3, 2015Assignee: Samsung Display Co., Ltd.Inventor: Yong-Seok Yeo
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Publication number: 20150015617Abstract: A method for controlling optical quantities of an organic light emitting diode (“OLED”) display includes generating an inverse matrix using an initial setting of the OLED display, calculating a variation between the initial setting and a target setting using the target setting, the initial setting and the inverse matrix, where the target setting is input by a user of the OLED, and controlling optical quantities of the OLED display using the variation.Type: ApplicationFiled: March 7, 2014Publication date: January 15, 2015Applicant: Samsung Display Co., Ltd.Inventors: Yong-Seok YEO, Sang-Min LIM, Gee-Bum KIM
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Patent number: 8872860Abstract: A method for driving a display device includes cumulatively applying a reset pulse of a predetermined level to a first electrode and applying a common voltage to a second electrode opposed to the first electrode to form an initial state of a plurality of cholesteric liquid crystal capsules included in a liquid crystal layer between the first electrode and the second electrode. The method also includes cumulatively applying a data pulse of a predetermined level to the first electrode to display a grayscale.Type: GrantFiled: March 21, 2011Date of Patent: October 28, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jae-Ik Lim, Jae-Hyun Kim, Won-Sang Park, Jong-In Baek, Gee-Bum Kim, Yong-Seok Yeo
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Publication number: 20140217369Abstract: An organic light-emitting transistor comprising a first electrode, a first semiconductor layer disposed on the first electrode, a second electrode disposed on the first semiconductor layer, a second semiconductor layer disposed on the second electrode, one of the first and second semiconductor layers having an organic semiconductor which emits light in response to a driving current that flows, and a third electrode disposed on the second semiconductor layer.Type: ApplicationFiled: July 9, 2013Publication date: August 7, 2014Inventors: Dae Sung CHOI, Ki Seo KIM, Yong Seok YEO
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Publication number: 20140118678Abstract: A display device including a first substrate; a display element layer on the first substrate; a second substrate on the display element layer; and a spacer layer between the first substrate and the second substrate.Type: ApplicationFiled: March 13, 2013Publication date: May 1, 2014Inventor: Yong-Seok YEO
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Patent number: 8704969Abstract: A display device includes a main display unit and a liquid crystal display cover coupled with the main display unit. The liquid crystal display cover is movable between open and closed positions with respect to the main display unit. The liquid crystal display cover includes a lower substrate, an upper substrate, and a liquid crystal layer. The lower substrate includes a plurality of first pixels thereon. The upper substrate faces the lower substrate and has a first common electrode thereon. The liquid crystal layer is between the lower substrate and the upper substrate.Type: GrantFiled: September 22, 2011Date of Patent: April 22, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jae-Hyun Kim, Jae-Ik Lim, Yong-Seok Yeo
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Publication number: 20140062910Abstract: A device, such as a display device, including a plurality of vibration plates oscillating in response to one or more oscillation signals. While at least one of first vibration plates among the plurality of vibration plates are oscillating, effective oscillation does not occur in at least one of second vibration plates among the plurality of vibration plates.Type: ApplicationFiled: January 30, 2013Publication date: March 6, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventor: Yong-Seok YEO
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Publication number: 20140015402Abstract: A flexible display device includes a flexible display panel, a plurality of supports on a first surface of the flexible display panel, the plurality of supports being spaced apart from each other, and an actuator on the first surface of the flexible display panel, the actuator being between the supports. The actuator includes an electroactive polymer layer, and a first electrode layer and a second electrode layer that are respectively arranged on an upper surface and a lower surface of the electroactive polymer layer, and the actuator having a property such that when a voltage is applied to the first electrode layer and the second electrode layer, an area of the electroactive polymer layer is changed.Type: ApplicationFiled: November 15, 2012Publication date: January 16, 2014Inventors: Yi-Joon AHN, Katsumasa YOSHII, Jong-In BAEK, Dae-Sung CHOI, Yong-Seok YEO, Ki-Seo KIM
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Publication number: 20140002427Abstract: A haptic display device is disclosed. In one aspect, the device includes a plurality of scan lines disposed over a substrate and configured to transfer a scan signal and a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines. The device also includes a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal and a thin film transistor electrically connected to the scan lines and the data lines, wherein the thin film transistor is formed in each of a plurality of pixels. The device further includes a first electrode electrically connected to the thin film transistor, a second electrode facing the first electrode and an optical adjustment member disposed between the first and second electrodes.Type: ApplicationFiled: June 24, 2013Publication date: January 2, 2014Inventors: Yong-Seok Yeo, Yi-Joon Ahn