Patents by Inventor Hyun-Min Cho

Hyun-Min 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).

  • Publication number: 20160178960
    Abstract: A display device, including a color conversion film, including a base film including a plurality of openings, the base film blocking light, and a color conversion layer in the openings, the color conversion layer including a pattern of different colors.
    Type: Application
    Filed: June 8, 2015
    Publication date: June 23, 2016
    Inventors: Dong-Uk KIM, Young Min KIM, Hae IL PARK, Mun-Ki SIM, Kwang Keun LEE, Hyun Min CHO
  • Patent number: 9343024
    Abstract: A method of driving a liquid crystal display apparatus includes gamma-correcting first and second gray scale data using a first gamma value to generate first and second luminance data; generating sub luminance data based on a smaller value of the first and second luminance data; correcting the sub luminance data using a second gamma value larger than the first gamma value to generate sub correction luminance data; correcting the first luminance data using the sub or second luminance data to generate first correction luminance data; correcting the second luminance data using the sub or first luminance data to generate second correction luminance data; performing inverse gamma correction on the first, second and sub correction luminance data using the first gamma value to generate first, second and sub correction gray scale data; and providing first to third pixels with the first, second, and sub correction gray scale data.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwangkeun Lee, Hyun Min Cho, Jae Byung Park, Jaehyun Cho, Sung-Jin Hong, Seon-Tae Yoon
  • Patent number: 9316777
    Abstract: A backlight assembly having a light emitting module and a lower receiving container, the light emitting module including a first light source configured to generate a first light and a quantum dot rail configured to generate a second light from the first light the light emitting module is disposed under a display panel to provide the display panel with the second light, and the lower receiving container is configured to receive the light emitting module and the display panel.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Min Cho, Kwang-Keun Lee, Jong-Hyuk Kang, Jae-Byung Park, Baek-Hee Lee
  • Publication number: 20160077377
    Abstract: Provided is a wire grid polarizer. The wire grid polarizer includes a substrate, and a plurality of conductive wire patterns which are in parallel with each other and projected from the substrate. The plurality of conductive wire patterns includes a conductive wire pattern material in which an oxide layer is defined at an outer side surface thereof, and an oxidation resistant layer on the oxide layer at the outer side surface of the conductive wire pattern material. The oxide layer is between the oxidation resistant layer and a remainder of the conductive wire pattern material.
    Type: Application
    Filed: February 17, 2015
    Publication date: March 17, 2016
    Inventors: Ji Hun KIM, Moon Jung AN, Yun Jong YEO, Hyun Min CHO, Sang Gab KIM
  • Patent number: 9286837
    Abstract: A display device includes: a display panel configured with rows of pixels, each row pixels including a first color pixel, a second color pixel, and a third color pixel; and a backlight assembly configured to supply light to the display panel, in which: a data signal is alternately applied to a first color pixel disposed in an odd row on an odd frame, and to another first color pixel disposed in an even row on an even frame, a data signal is alternately applied to a second color pixel disposed in the odd row on the odd frame, and to another second color pixel disposed in the even row on the even frame, a data signal is applied to a third color pixel on both frames, and colors of light supplied to the display panel on the odd frame and the even frame are different from each other.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: March 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hyun Cho, Jae Byung Park, Se Young Song, Seon-Tae Yoon, Hyun Min Cho, Sung-Jin Hong
  • Patent number: 9239458
    Abstract: A display device includes a light source unit that emits a first light with a first wavelength, an optical filter that converts the first light to a second light, and an optical shutter that transmits or reflects the first light or the second light.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: January 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Tae Yoon, Jong Hyuk Kang, Jae Byung Park, Mun-Ki Sim, Dae Hyun Kim, Minki Nam, Haeil Park, Dong-Hoon Lee, Hyun Min Cho
  • Publication number: 20160005616
    Abstract: A thin film transistor substrate includes a gate electrode arranged on a substrate, a gate insulation layer arranged on the gate electrode, an active pattern arranged on the gate insulation layer, a source electrode overlapping a first end portion of the active pattern, and a drain electrode overlapping a second and opposite end portion of the active pattern. A fluorocarbon-like material is arranged on one or more of surfaces of at least one of the active pattern, the source electrode and the drain electrode, and on a photoresist pattern used in the formation process of the thin film substrate. The fluorocarbon-like material on the photoresist pattern serves to maintain a shape and size of the photoresist pattern during subsequent patterning processes.
    Type: Application
    Filed: June 26, 2015
    Publication date: January 7, 2016
    Inventors: Hyun-Min CHO, Dong-Il KIM
  • Patent number: 9223174
    Abstract: A display device includes a display panel having a first transparent subpixel, a second transparent subpixel and a third transparent subpixel. A light source part provides light to the display panel. The light source part including a first light source configured to generate red light, a second light source configured to generate green light and a third light source configured to generate blue light. The third light source includes a blue light emitting diode and a wavelength shift layer. The wavelength of the blue light emitted from the third light source has a first peak within a range of about 445 nm to about 450 nm and a second peak within a range of about 450 nm to about 540 nm.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: December 29, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Hyuk Kang, Jung-Hyun Kwon, Jae-Byung Park, Dong-Hoon Lee, Hyun-Deok Im, Hyun-Min Cho, Min-Ki Nam
  • Publication number: 20150323164
    Abstract: A display apparatus includes a display panel that includes a plurality of pixels which displays an image in a front direction, and a backlight unit which provides a light to the display panel and includes a first light source part which is disposed at a rear surface of the display panel, includes a first support substrate and a first light source mounted on the first support substrate and emits a first color light, and a second light source part which is disposed at the rear surface of the display panel, includes a second support substrate partially overlapped with the first support substrate and a second light source mounted on the second support substrate, and emits a second color light having a wavelength band different from that of the first color light, where an opening is defined through the second support substrate and corresponds to the first light source.
    Type: Application
    Filed: January 21, 2015
    Publication date: November 12, 2015
    Inventors: Junghyun KWON, Hyundeok IM, Jong Hyuk KANG, Jae Byung PARK, Haeil PARK, Hyun Min CHO
  • Publication number: 20150316692
    Abstract: A display substrate includes a base substrate, a high reflective layer, a metal light reflective layer and a low reflective layer. The high reflective layer is on the base substrate, and includes a high refractive layer and a low refractive layer which alternate with each other. The high refractive layer has a first refractive index, and the low refractive layer has a second refractive index smaller than the first refractive index. The metal light reflective layer is between the high reflective layer and the low reflective layer, and reflects a light. The low reflective layer comprises a light absorbing layer which absorbs a light, and at least one insulating layer. Accordingly, a light utilizing efficiency and a display quality may be increased.
    Type: Application
    Filed: July 15, 2015
    Publication date: November 5, 2015
    Inventors: Sung Sik YUN, Jae Byung PARK, Jin Seob BYUN, Hyun-Min CHO, Yu-Kwan KIM
  • Publication number: 20150255026
    Abstract: A display device is disclosed. In one aspect, the display device includes a plurality of pixels each including first and second switching elements connected to a first gate line and a data line. Each pixel also includes a first memory capacitor connected to the first switching element and a capacitance voltage line, a second memory capacitor connected to the second switching element and the capacitance voltage line, and a third switching element and a fourth switching element each connected to a second gate line and a reference voltage line. Each pixel further includes a fifth switching element connected to a third gate line and the first memory capacitor, a sixth switching element connected to the third gate line and the second memory capacitor, a first subpixel electrode connected to the third and fifth switching elements, and a second subpixel electrode connected to the fourth and sixth switching element.
    Type: Application
    Filed: March 5, 2015
    Publication date: September 10, 2015
    Inventors: Kwang-Chul JUNG, Se Young SONG, Sung-Jin HONG, Jae Byung PARK, Mee Hye JUNG, Hyun Min CHO
  • Publication number: 20150243933
    Abstract: An organic light-emitting display apparatus includes: a substrate including a first surface and a second surface opposite to each other; an organic emission unit disposed on the first surface of the substrate and including: an emission region configured to emit light; and a first transmission region configured to transmit external light; an encapsulation unit joined to the first surface of the substrate, the encapsulating unit configured to seal the organic emission unit from external air; a first optical layer configured to delay a phase of the external light; and a second functional layer configured to linearly polarize the external light, wherein the second function layer is disposed farther from the organic emission unit than the first functional layer and includes a second transmission region corresponding to the first transmission region.
    Type: Application
    Filed: September 24, 2014
    Publication date: August 27, 2015
    Inventors: Jun-Han LEE, Mun-Ki SIM, Baek-Hee LEE, Jae-Byung PARK, Seon-Tae YOON, Kwang-Keun LEE, Hyun-Min CHO
  • Patent number: 9116343
    Abstract: A display substrate includes a base substrate, a high reflective layer, a metal light reflective layer and a low reflective layer. The high reflective layer is on the base substrate, and includes a high refractive layer and a low refractive layer which alternate with each other. The high refractive layer has a first refractive index, and the low refractive layer has a second refractive index smaller than the first refractive index. The metal light reflective layer is between the high reflective layer and the low reflective layer, and reflects a light. The low reflective layer comprises a light absorbing layer which absorbs a light, and at least one insulating layer. Accordingly, a light utilizing efficiency and a display quality may be increased.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Sik Yun, Jae-Byung Park, Jin-Seob Byun, Hyun-Min Cho, Yu-Kwan Kim
  • Publication number: 20150221260
    Abstract: A display device includes: a display panel configured with rows of pixels, each row pixels including a first color pixel, a second color pixel, and a third color pixel; and a backlight assembly configured to supply light to the display panel, in which: a data signal is alternately applied to a first color pixel disposed in an odd row on an odd frame, and to another first color pixel disposed in an even row on an even frame, a data signal is alternately applied to a second color pixel disposed in the odd row on the odd frame, and to another second color pixel disposed in the even row on the even frame, a data signal is applied to a third color pixel on both frames, and colors of light supplied to the display panel on the odd frame and the even frame are different from each other.
    Type: Application
    Filed: July 22, 2014
    Publication date: August 6, 2015
    Inventors: Jae Hyun CHO, Jae Byung PARK, Se Young SONG, Seon-Tae YOON, Hyun Min CHO, Sung-Jin HONG
  • Patent number: 9081185
    Abstract: The display substrate includes a base substrate, a micro shutter, a first driving electrode, a second driving electrode and a plurality of anchors. The micro shutter is disposed on the base substrate, and includes a plurality of opening parts and a blocking part. The blocking part includes at least two trench structures and the blocking part is disposed between an adjacent pair of the opening parts. The first driving electrode is connected to a first side of the micro shutter. The second driving electrode is connected to a second side of the micro shutter opposite to the first side of the micro shutter. The plurality of anchors fixes the first and second driving electrodes and the micro shutter on the base substrate.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: July 14, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Sik Yun, Jae-Byung Park, Jin-Seob Byun, Hyun-Min Cho, Dae-Hyun Kim
  • Publication number: 20150194117
    Abstract: A liquid crystal display apparatus includes a gamma mapping unit configured to receive red, green, and blue image information from an external device. During the first field, the gamma mapping unit generates first to third data signals for controlling the first to third pixels based on the red, green, and blue image information in synchronization with the backlight unit. During the second field, the gamma mapping unit generates fourth and fifth data signals for controlling the first and second pixels based on at least one of the first to third data signals or based on the red, green, and blue image information. As the quantity of the second color light leaked is adjusted through the first and second color filters in the second field, a color reproduction range and brightness of the liquid crystal display panel are improved. Thus, the display quality of the liquid crystal display apparatus is improved.
    Type: Application
    Filed: August 28, 2014
    Publication date: July 9, 2015
    Inventors: Hyun Min Cho, Jae Byung Park, Seon-Tae Yoon, Kwangkeun Lee, Jaehyun Cho
  • Publication number: 20150194106
    Abstract: A display apparatus includes a display panel, a light source part, a panel driver, and a light source driver. The display panel includes a first sub pixel having a first primary color, a second sub pixel having a second primary color, and a transparent sub-pixel. The light source part is configured to provide light to the display panel, where the light source part includes a first light source and a second light source having colors different from each other. The panel driver is configured to output to the display panel a first grayscale data, a second grayscale data, and a third grayscale data, respectively during a first sub frame, a second sub frame, and a third sub frame. The first grayscale data is associated with the first light source, and the second grayscale data and the third grayscale data are associated with the second light source.
    Type: Application
    Filed: August 4, 2014
    Publication date: July 9, 2015
    Inventors: Jae-Hyun CHO, Sung-Jin HONG, Jae-Woong KANG, Jae-Byung PARK, Hyun-Min CHO
  • Publication number: 20150194104
    Abstract: A method of driving a liquid crystal display apparatus includes gamma-correcting first and second gray scale data using a first gamma value to generate first and second luminance data; generating sub luminance data based on a smaller value of the first and second luminance data; correcting the sub luminance data using a second gamma value larger than the first gamma value to generate sub correction luminance data; correcting the first luminance data using the sub or second luminance data to generate first correction luminance data; correcting the second luminance data using the sub or first luminance data to generate second correction luminance data; performing inverse gamma correction on the first, second and sub correction luminance data using the first gamma value to generate first, second and sub correction gray scale data; and providing first to third pixels with the first, second, and sub correction gray scale data.
    Type: Application
    Filed: July 8, 2014
    Publication date: July 9, 2015
    Inventors: Kwangkeun Lee, Hyun Min Cho, Jae Byung Park, Jaehyun Cho, Sung-Jin Hong, Seon-Tae Yoon
  • Publication number: 20150163928
    Abstract: A display apparatus includes a display panel which displays an image, a driving substrate which is disposed adjacent to the display panel in a first direction, and extends in a second direction substantially perpendicular to the first direction, a connecting part connecting the display panel to the driving substrate, and a receiving container which receives the display panel, the driving substrate and the connecting part, where an angle between the display panel and the driving substrate being greater than about 90 degrees and less than about 180 degrees.
    Type: Application
    Filed: September 8, 2014
    Publication date: June 11, 2015
    Inventors: Hyun-Min CHO, Jae-Byung PARK, Jae-Hyun CHO
  • Patent number: 9041994
    Abstract: A display apparatus includes a first substrate, a second substrate facing the first substrate, and a plurality of pixels including a first pixel. The first substrate includes first openings through which a light is transmitted. The pixels are disposed on at least one of the first substrate and the second substrate. The first pixel includes a first flexible electrode, a second flexible electrode, and a shutter including second openings and disposed between the first and second flexible electrodes. The first flexible electrode receives a first voltage. The second flexible electrode receives a second voltage different from the first voltage. The shutter receives a third voltage. The shutter moves to the first flexible electrode or the second flexible electrode according to a level of the third voltage, thereby controlling the position of the second openings relative to the first openings to control the transmission of the light.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: May 26, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon-Tae Yoon, Jae Byung Park, Hyun Min Cho, Dong-Hoon Lee, Mun-Ki Sim