Patents by Inventor Won-Sik Hyun
Won-Sik Hyun 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: 9184412Abstract: An organic light emitting display apparatus includes a substrate and includes an organic light emitting device that overlaps the substrate and includes an organic layer. The organic light emitting display apparatus further includes a planarization layer that overlaps the organic light emitting device and includes an organic material, wherein the organic light emitting device is disposed between the substrate and the planarization layer. The organic light emitting display apparatus further includes an encapsulation layer that overlaps the planarization layer and includes an inorganic material, wherein the planarization layer is disposed between the organic light emitting device and a portion of the encapsulation layer. The organic light emitting display apparatus further includes an intermediate layer that is disposed between the planarization layer and the portion of the encapsulation layer.Type: GrantFiled: January 3, 2014Date of Patent: November 10, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Leonid Kaplan, Min-Soo Kim, Jin-Woo Park, Won-Sik Hyun, Ou-Hyen Kim, Il-Sang Lee, Sang-Wook Shin, Sun-Young Jung
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Publication number: 20150263080Abstract: An organic light-emitting display device includes a first substrate and a second substrate that face each other; an organic light-emitting device that is disposed between the first and second substrates and includes a pixel electrode separately formed in each pixel, a common electrode facing the pixel electrode, and an organic light-emitting layer disposed between the pixel electrode and the common electrode; and an electrode unit and at least one wiring unit that are disposed between the first substrate and the second substrate, the electrode unit including at least one thin-film transistor for transmitting a light-emitting signal to the pixel electrode and at least one capacitor, wherein an optical property modification layer obtained by modifying an optical property of at least one of the electrode unit and the wiring unit is formed on a surface of the at least one of the electrode unit and the wiring unit.Type: ApplicationFiled: May 26, 2015Publication date: September 17, 2015Inventors: Len Kaplan, Valeriy Prushinskiy, Se-Ho Cheong, Won-Sik Hyun, Byoung-Seong Jeong, Jang-Seok Ma
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Publication number: 20150221892Abstract: An exemplary embodiment described technology relates generally to an organic light emitting diode (OLED) display and a manufacturing method thereof. The organic light emitting diode (OLED) display according to an exemplary embodiment includes: a substrate; an encapsulation member; an organic light emitting element between the substrate and the encapsulation member; a middle sealing member including one side disposed between the substrate and the encapsulation member and another side extended from the one side to be bent and enclosing an edge of the encapsulation member; a first sealant sealing and combining the one side of the middle sealing member and the substrate to each other; a second sealant sealing and combining the other side of the middle sealing member and the encapsulation member to each other; and a getter at the one side of the middle sealing member and the encapsulation member.Type: ApplicationFiled: April 14, 2015Publication date: August 6, 2015Inventors: Valeriy Prushinskiy, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Beohm-Rock Choi
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Patent number: 9076390Abstract: A display device includes a display unit including pixels, each of which emits light according to data voltages, respectively; and a timing controller which divides an area of the display unit into an upper, center and bottom portions, divides one frame time into light emission sub-frames of a light emission period and a blank sub-frame of a blank period in which is supplied a black data signal, divides the upper, center and the bottom portions into groups, differentiates a scan start time of a light emission sub-frame and a scan start time of the blank sub-frame of each group, and increases the light emission period and decreases the blank period in proportional to an increase ratio of the light emission period as a group is closer to a middle of the center portion.Type: GrantFiled: September 30, 2013Date of Patent: July 7, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Leonid Kaplan, Heung-Yeol Na, Baek-Woon Lee, Won-Sik Hyun, Jae-Hoon Lee
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Patent number: 9041047Abstract: An exemplary embodiment described technology relates generally to an organic light emitting diode (OLED) display and a manufacturing method thereof. The organic light emitting diode (OLED) display according to an exemplary embodiment includes: a substrate; an encapsulation member; an organic light emitting element between the substrate and the encapsulation member; a middle sealing member including one side disposed between the substrate and the encapsulation member and another side extended from the one side to be bent and enclosing an edge of the encapsulation member; a first sealant sealing and combining the one side of the middle sealing member and the substrate to each other; a second sealant sealing and combining the other side of the middle sealing member and the encapsulation member to each other; and a getter at the one side of the middle sealing member and the encapsulation member.Type: GrantFiled: June 27, 2012Date of Patent: May 26, 2015Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Beohm-Rock Choi
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Patent number: 9041017Abstract: An organic light-emitting display device includes a first substrate and a second substrate; an organic light-emitting device disposed between the first and second substrates and includes a pixel electrode separately formed in each pixel, a common electrode, and an organic light-emitting layer disposed between the pixel electrode and the common electrode; and an electrode unit and at least one wiring unit that are disposed between the first substrate and the second substrate, the electrode unit including at least one thin-film transistor for transmitting a light-emitting signal to the pixel electrode and at least one capacitor, wherein an optical property modification layer obtained by modifying an optical property of at least one of the electrode unit and the wiring unit is formed on a surface of the at least one of the electrode unit and the wiring unit.Type: GrantFiled: March 5, 2012Date of Patent: May 26, 2015Assignee: Samsung Mobile Display Co., Ltd.Inventors: Len Kaplan, Valeriy Prushinskiy, Se-Ho Cheong, Won-Sik Hyun, Byoung-Seong Jeong, Jang-Seok Ma
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Patent number: 9006012Abstract: A method of manufacturing an organic light emitting diode display according to an exemplary embodiment of the present invention includes: forming a first electrode on a substrate; forming an insulation layer on the first electrode; etching the insulation layer to expose the first electrode so as to form a pixel defining layer having the same height as the first electrode; forming an organic layer including one or more emission layers on the first electrode of a sub-pixel region defined by the pixel defining layer by applying a laser-induced thermal imaging (LITI) method; and forming a second electrode on the organic layer.Type: GrantFiled: October 18, 2013Date of Patent: April 14, 2015Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Min-Soo Kim, Won-Sik Hyun, Heung-Yeol Na, Jin-Won Sun
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Publication number: 20150054862Abstract: A display device includes a timing controller for controlling the display of an image. The timing controller forms a frame for an image signal based on a main frame, a compensation frame, and at least one blank frame. The timing controller also determines a driving method for the display pixels to generate output image data. The main frame serves to display the image signal. The compensation frame serves to compensate luminance of the main frame. The blank frame serves to express a black gray scale value.Type: ApplicationFiled: July 10, 2014Publication date: February 26, 2015Inventors: Leonid KAPLAN, Heung-Yeol NA, Baek-Woon LEE, Won-Sik HYUN, Jae-Hoon LEE
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Publication number: 20150054718Abstract: Exemplary embodiments of the present invention relates to a pixel circuit for displaying an image of uniform luminance. The pixel circuit comprising an organic light emitting diode (OLED), an RS trigger comprising a first terminal connected to a scan line, a second terminal connected to an enable line, and a third terminal connected to a data line, the RS trigger configured to generate an output signal according to an enable signal, a data signal, and a scan signal respectively received via the enable line, the data line, and the scan line, and a driving transistor comprising a first electrode connected to a first power source, a second electrode connected to an anode of the OLED, and a gate electrode connected to an output terminal of the RS trigger, the driver transistor configured to control a current flowing through the OLED in response to the output signal of the RS trigger.Type: ApplicationFiled: April 8, 2014Publication date: February 26, 2015Applicant: Samsung Display Co., Ltd.Inventors: Leonid Kaplan, Heung-Yeol Na, Baek-Woon Lee, Won-Sik Hyun, Jae-Hoon Lee
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Patent number: 8946733Abstract: An organic light-emitting display apparatus that improves image quality characteristics, the organic light-emitting display apparatus including: a substrate; a first electrode formed on the substrate; a pixel-defining layer (PDL) formed on the first electrode to expose a set or predetermined region of the first electrode; an intermediate layer formed in the exposed predetermined region of the first electrode and including an organic emission layer; and a second electrode having a light-scattering face facing the substrate or facing oppositely away from the substrate, the second electrode being disposed on the intermediate layer.Type: GrantFiled: February 3, 2012Date of Patent: February 3, 2015Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Len Kaplan, Se-Ho Cheong, Won-Sik Hyun, Min-Soo Kim, Kyong-Tae Park, Byoung-Seong Jeong, Jang-Seok Ma
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Publication number: 20150015563Abstract: A pixel circuit includes: an organic light emitting diode (“OLED”); a threshold circuit which generates an output signal based on an input signal, where the threshold circuit has a hysteresis characteristic with respect to the input signal; a first transistor including a first electrode connected to a data line, a second electrode connected to an input terminal of the threshold circuit, and a gate electrode connected to a scan line; and a second transistor including a first electrode connected to a first power, a second electrode connected to an anode of the organic light emitting diode, and a gate electrode connected to an output terminal of the threshold circuit, where the second transistor controls a current amount that flows to the organic light emitting diode from the first power based on the output signal of the threshold circuit.Type: ApplicationFiled: April 18, 2014Publication date: January 15, 2015Applicant: Samsung Display Co., Ltd.Inventors: Kaplan LEONID, Heung-Yeol NA, Baek-Woon LEE, Won-Sik HYUN, Jae-Hoon LEE
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Publication number: 20150014646Abstract: An organic light emitting display apparatus includes a substrate and includes an organic light emitting device that overlaps the substrate and includes an organic layer. The organic light emitting display apparatus further includes a planarization layer that overlaps the organic light emitting device and includes an organic material, wherein the organic light emitting device is disposed between the substrate and the planarization layer. The organic light emitting display apparatus further includes an encapsulation layer that overlaps the planarization layer and includes an inorganic material, wherein the planarization layer is disposed between the organic light emitting device and a portion of the encapsulation layer. The organic light emitting display apparatus further includes an intermediate layer that is disposed between the planarization layer and the portion of the encapsulation layer.Type: ApplicationFiled: January 3, 2014Publication date: January 15, 2015Applicant: Samsung Display Co., Ltd.Inventors: Leonid Kaplan, Min-Soo Kim, Jin-Woo Park, Won-Sik Hyun, Ou-Hyen Kim, Il-Sang Lee, Sang-Wook Shin, Sun-Young Jung
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Publication number: 20140347402Abstract: A display device includes a display unit including pixels, each of which emits light according to data voltages, respectively; and a timing controller which divides an area of the display unit into an upper, center and bottom portions, divides one frame time into light emission sub-frames of a light emission period and a blank sub-frame of a blank period in which is supplied a black data signal, divides the upper, center and the bottom portions into groups, differentiates a scan start time of a light emission sub-frame and a scan start time of the blank sub-frame of each group, and increases the light emission period and decreases the blank period in proportional to an increase ratio of the light emission period as a group is closer to a middle of the center portion.Type: ApplicationFiled: September 30, 2013Publication date: November 27, 2014Applicant: Samsung Display Co., Ltd.Inventors: Leonid Kaplan, Heung-Yeol NA, Baek-Woon LEE, Won-Sik HYUN, Jae-Hoon LEE
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Patent number: 8879032Abstract: An alignment layer for a display device may include a plurality of rubbed patterns formed on its surface, wherein each of the rubbed patterns includes a first pattern intersecting a center axis at a first angle, and a second pattern connected to the first pattern and intersecting the center axis at a second angle, and the first pattern and the second pattern are alternately repeated. A liquid crystal display device includes the alignment layer, and a method and apparatus for treating the alignment layer are provided.Type: GrantFiled: November 28, 2011Date of Patent: November 4, 2014Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Len Kaplan, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Seon-Hong Ahn
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Publication number: 20140308487Abstract: In one aspect, an encapsulation sheet, a method of manufacturing an organic light emitting display device using the encapsulation sheet, and an organic light emitting display device is provided. The encapsulation sheet includes a carrier film; and a first sheet formed on the carrier film, wherein the first sheet comprises at least one of tin fluorophosphates glass, chalcogenide glass, tellurite glass, borate glass, and phosphate glass.Type: ApplicationFiled: June 24, 2014Publication date: October 16, 2014Inventors: Min-Soo Kim, Jin-Woo Park, Won-Sik Hyun
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Patent number: 8860034Abstract: An organic light-emitting display apparatus including: a first substrate; a second substrate disposed to face the first substrate; a first electrode disposed between the first substrate and the second substrate and a second electrode disposed to face the first electrode; and an organic light-emitting layer disposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode is a reflective electrode, and an optical property modification layer having at least one optical property modified from that of the reflective electrode is formed on a surface of the reflective layer.Type: GrantFiled: November 10, 2011Date of Patent: October 14, 2014Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Len Kaplan, Se-Ho Cheong, Won-Sik Hyun, Byoung-Seong Jeong, Jang-Seok Ma
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Publication number: 20140291632Abstract: A method of manufacturing an organic light emitting diode display according to an exemplary embodiment of the present invention includes: forming a first electrode on a substrate; forming an insulation layer on the first electrode; etching the insulation layer to expose the first electrode so as to form a pixel defining layer having the same height as the first electrode; forming an organic layer including one or more emission layers on the first electrode of a sub-pixel region defined by the pixel defining layer by applying a laser-induced thermal imaging (LITI) method; and forming a second electrode on the organic layer.Type: ApplicationFiled: October 18, 2013Publication date: October 2, 2014Inventors: VALERIY PRUSHINSKIY, Min-Soo KIM, Won-Sik HYUN, Heung-Yeol NA, Jin-Won SUN
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Patent number: 8840533Abstract: A rubbing apparatus including a rubbing roller including an opening portion at a region of a circumferential surface of the rubbing roller, an outlet portion connected to the opening portion and open to an outside of the rubbing roller, and a groove portion connected to the opening portion and penetrating into the rubbing roller along the opening portion; and a rubbing cloth substantially surrounding the circumferential surface of the rubbing roller.Type: GrantFiled: September 23, 2011Date of Patent: September 23, 2014Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Len Kaplan, Se-Ho Cheong, Won-Sik Hyun, Heung-Yeol Na, Kyong-Tae Park, Min-Soo Kim, Seon-Hong Ahn
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Patent number: 8835914Abstract: An organic light emitting display device may include a first substrate, a first electrode disposed on the first substrate, a pixel defining layer disposed on the first electrode and the first substrate, an organic light emitting structure disposed on the first electrode, a second electrode disposed on the organic light emitting structure and the pixel defining layer, a second substrate disposed on the second electrode, etc. The pixel defining layer may include a fine uneven structure positioned in the display and the non-display regions. The organic light emitting structure may be substantially uniformly formed on the first electrode through the pixel defining layer having the fine uneven structure, so that an organic light emitting display device may exhibit increased lifetime and may show improved image quality.Type: GrantFiled: March 11, 2013Date of Patent: September 16, 2014Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Min-Soo Kim, Won-Sik Hyun, Heung-Yeol Na, Sang-Woo Pyo
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Patent number: 8778713Abstract: In one aspect, an encapsulation sheet, a method of manufacturing an organic light emitting display device using the encapsulation sheet, and an organic light emitting display device is provided. The encapsulation sheet includes a carrier film; and a first sheet formed on the carrier film, wherein the first sheet comprises at least one of tin fluorophosphates glass, chalcogenide glass, tellurite glass, borate glass, and phosphate glass.Type: GrantFiled: February 27, 2013Date of Patent: July 15, 2014Assignee: Samsung Display Co., Ltd.Inventors: Min-Soo Kim, Jin-Woo Park, Won-Sik Hyun