Patents by Inventor Ho-seop Lee
Ho-seop Lee 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: 11521535Abstract: A display device is disclosed. The display device comprises: a display including a plurality of display modules; a display driving unit including a plurality of driving modules connected to each of the plurality of display modules; a storage for storing current control information according to the luminance of a display device; and a processor for calculating the maximum power amount available in each of the plurality of display modules on the basis of the entire power capacity, which can be provided by the plurality of driving modules, and of the individual power consumption amount of each of the plurality of display modules, calculating a peak luminance level of each of the plurality of display modules on the basis of the calculated maximum power amount, and controlling, on the basis of the current control information, the plurality of driving modules such that each of the plurality of display modules has the corresponding peak luminance level.Type: GrantFiled: March 8, 2017Date of Patent: December 6, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-hyang Lee, Ho-seop Lee
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Patent number: 11423826Abstract: A display apparatus and a manufacturing method thereof including a plurality of light emitting diode (LED) elements, signal electrodes configured to supply data signals to the plurality of LED elements, and a common electrode configured to provide a ground to the plurality of LED elements, in which one end of each of the plurality signal electrodes is surrounded by the common electrode or respective ends of the common electrode are surrounded by the plurality of signal electrodes.Type: GrantFiled: October 12, 2018Date of Patent: August 23, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Min Shin, Ho Seop Lee, Sang Young Park
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Patent number: 11257979Abstract: The present disclosure relates to a display apparatus including a substrate, a thin film transistor disposed on the substrate, a first insulating layer disposed on a source electrode and a drain electrode of the thin film transistor, a light emitting diode disposed on the first insulating layer to emit light toward the substrate, a second insulating layer disposed on the first insulating layer to surround the light emitting diode, an upper electrode disposed on the second insulating layer, and a driver IC chip disposed above the upper electrode to be connected to the upper electrode. According to the above configuration, the driver IC chip is disposed on the back side of a light emitting surface of a display panel, so that a bezel is capable of being minimized or omitted, and manufacturing of the display apparatus is easy and manufacturing costs is reduced.Type: GrantFiled: November 9, 2018Date of Patent: February 22, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Min Shin, Oh Jae Kwon, Ho Seop Lee
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Patent number: 11004904Abstract: A display apparatus includes a display panel comprising a plurality of light emitting elements, a panel driver configured to drive the display panel by applying a current to the plurality of light emitting elements, a memory configured to store luminance information according to a current of the light emitting elements, and a processor configured to determine a target luminance of the light emitting elements based on a gray level of an image, and to control the panel driver to drive the display panel by adjusting a current applied to the light emitting elements based on the target luminance and information stored in the memory and adjusting a duty to which the adjusted current is applied.Type: GrantFiled: November 3, 2017Date of Patent: May 11, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-seop Lee, Seung-yong Shin, Jin-mo Kang, Sang-young Park
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Patent number: 10886443Abstract: A light emitting device package includes a light emitting device that generates light, a body frame including a cavity in which the light emitting device is mounted, a molding material that fills the cavity, and absorbing pigments that convert the light generated by the light emitting device. The absorbing pigments have a peak value within a wavelength range of 490 to 520 nm and a full width at half maximum (FWHM) of 40 to 70 nm.Type: GrantFiled: August 10, 2018Date of Patent: January 5, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Kyun Im, Tetsuya Shigeta, Ho Seop Lee, Seong-Phil Cho
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Publication number: 20200350464Abstract: The present disclosure relates to a display apparatus including a substrate, a thin film transistor disposed on the substrate, a first insulating layer disposed on a source electrode and a drain electrode of the thin film transistor, a light emitting diode disposed on the first insulating layer to emit light toward the substrate, a second insulating layer disposed on the first insulating layer to surround the light emitting diode, an upper electrode disposed on the second insulating layer, and a driver IC chip disposed above the upper electrode to be connected to the upper electrode. According to the above configuration, the driver IC chip is disposed on the back side of a light emitting surface of a display panel, so that a bezel is capable of being minimized or omitted, and manufacturing of the display apparatus is easy and manufacturing costs is reduced.Type: ApplicationFiled: November 9, 2018Publication date: November 5, 2020Applicant: SAMSUNG ELECTONICS CO., LTD.Inventors: Sang Min SHIN, Oh Jae KWON, Ho Seop LEE
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Patent number: 10825377Abstract: A display apparatus, including a display panel which includes a light emitting element, a storage configured to store a plurality of compensation coefficients corresponding to a plurality of gray levels according to a parasitic capacitance of the light emitting element, and a processor configured to obtain a compensation coefficient from the plurality of compensation coefficients based on at least one of a position of a scan line and a gray level of scan data, compensate the gray level of the scan data based on the obtained compensation coefficient, and drive the light emitting element based on the compensated gray level.Type: GrantFiled: December 15, 2017Date of Patent: November 3, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-seop Lee, Do-young Kwag, Tetsuya Shigeta, Seong-phil Cho
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Patent number: 10593251Abstract: A display panel including a plurality of pixel circuits is provided. Each of the plurality of pixel circuits includes a light emitting unit including a light emitting element; a control circuit configured to control a light emitting duration of the light emitting element based on an input end voltage; a first switching element connected between an input end and an output end of the control circuit; and a signal input unit including a second switching element and configured to transmit an input signal to the input end of the control circuit. The first switching elements of each of the plurality of pixel circuits are configured to simultaneously turn on or off.Type: GrantFiled: April 13, 2018Date of Patent: March 17, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tetsuya Shigeta, Sang-young Park, Ho-seop Lee
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Patent number: 10504406Abstract: A pixel circuit of a display panel is provided, which includes a light emitting element configured to emit light in accordance with a drive current, a current source including a driving transistor connected to the light emitting element, and the current source is configured to provide the drive current having a different amplitude to the light emitting element in accordance with a level of a voltage applied to a gate terminal of the driving transistor, an amplitude setting circuit configured to apply a voltage having a different level to the gate terminal of the driving transistor, and a pulse width control circuit configured to control a duration of the drive current by controlling the voltage applied to the gate terminal of the driving transistor.Type: GrantFiled: February 20, 2018Date of Patent: December 10, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tetsuya Shigeta, Sang-young Park, Ho-seop Lee
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Patent number: 10424240Abstract: An LED display module and a display apparatus are provided.Type: GrantFiled: November 9, 2017Date of Patent: September 24, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-seop Lee, Dong-myung Son, Jae-hyang Lee
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Publication number: 20190114958Abstract: A display apparatus and a manufacturing method thereof including a plurality of light emitting diode (LED) elements, signal electrodes configured to supply data signals to the plurality of LED elements, and a common electrode configured to provide a ground to the plurality of LED elements, in which one end of each of the plurality signal electrodes is surrounded by the common electrode or respective ends of the common electrode are surrounded by the plurality of signal electrodes.Type: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Min SHIN, Ho Seop LEE, Sang Young PARK
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Patent number: 10235120Abstract: A display apparatus constituting a video wall system is provided. The display apparatus includes a display, a first communicator configured to perform communication with at least one adjacent display apparatus, and a processor configured to allocate identification information corresponding to the display apparatus based on identification information received from the adjacent display apparatus and information on a location relationship of the display device relative to the adjacent display apparatus and display a sub-image of an image through the display based on the allocated identification information.Type: GrantFiled: July 29, 2015Date of Patent: March 19, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong-phil Cho, Tae-je Park, Ho-seop Lee, Byeong-cheol Hyeon
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Publication number: 20190051804Abstract: A light emitting device package includes a light emitting device that generates light, a body frame including a cavity in which the light emitting device is mounted, a molding material that fills the cavity, and absorbing pigments that convert the light generated by the light emitting device. The absorbing pigments have a peak value within a wavelength range of 490 to 520 nm and a full width at half maximum (FWHM) of 40 to 70 nm.Type: ApplicationFiled: August 10, 2018Publication date: February 14, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Kyun IM, Tetsuya SHIGETA, Ho Seop LEE, Seong-Phil CHO
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Publication number: 20180301080Abstract: A display panel including a plurality of pixel circuits is provided. Each of the plurality of pixel circuits includes a light emitting unit including a light emitting element; a control circuit configured to control a light emitting duration of the light emitting element based on an input end voltage; a first switching element connected between an input end and an output end of the control circuit; and a signal input unit including a second switching element and configured to transmit an input signal to the input end of the control circuit. The first switching elements of each of the plurality of pixel circuits are configured to simultaneously turn on or off.Type: ApplicationFiled: April 13, 2018Publication date: October 18, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tetsuya SHIGETA, Sang-young PARK, Ho-seop LEE
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Publication number: 20180293929Abstract: A pixel circuit of a display panel is provided, which includes a light emitting element configured to emit light in accordance with a drive current, a current source including a driving transistor connected to the light emitting element, and the current source is configured to provide the drive current having a different amplitude to the light emitting element in accordance with a level of a voltage applied to a gate terminal of the driving transistor, an amplitude setting circuit configured to apply a voltage having a different level to the gate terminal of the driving transistor, and a pulse width control circuit configured to control a duration of the drive current by controlling the voltage applied to the gate terminal of the driving transistor.Type: ApplicationFiled: February 20, 2018Publication date: October 11, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tetsuya SHIGETA, Sang-young PARK, Ho-seop LEE
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Patent number: 10032407Abstract: A display panel is provided. The display panel includes pixels that include a red (R) subpixel, a green (G) subpixel, a blue (B) subpixel, and a white (W) subpixel arranged in a first package and a second package disposed adjacent to the first package. The first package includes the B subpixel and the G subpixel and the second package includes the R subpixel and the W subpixel.Type: GrantFiled: May 18, 2016Date of Patent: July 24, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-seop Lee, Do-young Kwag, Dae-sik Kim, Sang-kyun Im, Seong-phil Cho
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Publication number: 20180197453Abstract: A display apparatus, including a display panel which includes a light emitting element, a storage configured to store a plurality of compensation coefficients corresponding to a plurality of gray levels according to a parasitic capacitance of the light emitting element, and a processor configured to obtain a compensation coefficient from the plurality of compensation coefficients based on at least one of a position of a scan line and a gray level of scan data, compensate the gray level of the scan data based on the obtained compensation coefficient, and drive the light emitting element based on the compensated gray level.Type: ApplicationFiled: December 15, 2017Publication date: July 12, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-seop LEE, Do-young KWAG, Tetsuya SHIGETA, Seong-phil CHO
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Publication number: 20180145116Abstract: A display apparatus includes a display panel comprising a plurality of light emitting elements, a panel driver configured to drive the display panel by applying a current to the plurality of light emitting elements, a memory configured to store luminance information according to a current of the light emitting elements, and a processor configured to determine a target luminance of the light emitting elements based on a gray level of an image, and to control the panel driver to drive the display panel by adjusting a current applied to the light emitting elements based on the target luminance and information stored in the memory and adjusting a duty to which the adjusted current is applied.Type: ApplicationFiled: November 3, 2017Publication date: May 24, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-seop LEE, Seung-yong SHIN, Jin-mo KANG, Sang-young PARK
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Publication number: 20180130405Abstract: An LED display module and a display apparatus are provided.Type: ApplicationFiled: November 9, 2017Publication date: May 10, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-seop LEE, Dong-myung SON, Jae-hyang LEE
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Patent number: 9558691Abstract: A display apparatus is disclosed. The display apparatus includes a panel unit which comprises a plurality of sub pixels having different colors; a backlight unit which provides backlight to the panel unit using a white light source and a blue light source; an image processing unit which converts image data into first color frame data and second color frame data; a panel driving unit which turns on a first color sub pixel according to the first color frame data, and which turns on a second color sub pixel according to the second color frame data; a backlight driving unit for driving the backlight unit; and a control unit which controls the backlight driving unit to consecutively turn on the white light source and the blue light source according to operations of the panel driving unit. Accordingly, brightness may be enhanced.Type: GrantFiled: June 20, 2013Date of Patent: January 31, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-hoon Jung, Seong-phil Cho, Dae-sik Kim, Ho-seop Lee