Patents by Inventor Chulgyu JUNG
Chulgyu JUNG 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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Publication number: 20230387144Abstract: A display module includes: a plurality of pixels arranged in two dimensions; a display panel including: a back plate including: a transparent substrate; a pixel circuit layer; and a plurality of power electrode layers provided on the transparent substrate; and a plurality of inorganic light emitting elements provided on the back plate; and an image sensor provided on the rear of the display panel, wherein each of the plurality of pixels includes two or more inorganic light emitting elements among the plurality of inorganic light emitting elements, the display panel includes a plurality of transparent regions in a region corresponding to a position of the image sensor, and each transparent region of the plurality of transparent regions is configured to allow external light to be incident on the image sensor.Type: ApplicationFiled: July 27, 2023Publication date: November 30, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki JUNG, Chulgyu Jung
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Publication number: 20230122312Abstract: A light-emitting diode (LED) module includes: a glass substrate; a signal wiring layer provided on the glass substrate and including a plurality of electrodes connected by a passive matrix circuit; and a plurality of LEDs connected to the plurality of electrodes and configured to emit light toward the glass substrate, wherein the signal wiring layer further includes a boundary region that divides the LED module into a plurality of unit regions.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki JUNG, Sangmin SHIN, Kisun KANG, Donghwan KIM, Chulgyu JUNG
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Publication number: 20230016687Abstract: A display module and a method for manufacturing the same are provided.Type: ApplicationFiled: September 15, 2022Publication date: January 19, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Donggun OH, Jinho Kim, Chulgyu Jung
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Publication number: 20230006120Abstract: A light emitting diode (LED) module includes a substrate layer including an active area and a non-active area excluding the active area, at least one wiring layer provided on the substrate layer, and a test pad connected to the at least one wiring layer and provided in the non-active area.Type: ApplicationFiled: September 6, 2022Publication date: January 5, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki JUNG, Sangmin SHIN, Donghun LEE, Chulgyu JUNG
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Publication number: 20220384231Abstract: A guide apparatus configured to transfer light-emitting devices in a liquid onto a substrate is provided. The guide apparatus includes a base configured to support the substrate; and a guide member configured to couple with the base to be seated on a mounting surface of the substrate in a state in which the substrate is supported on a surface of the base, wherein the guide member includes guide holes configured to respectively guide the light-emitting devices in the liquid to be disposed on the mounting surface of the substrate.Type: ApplicationFiled: December 2, 2021Publication date: December 1, 2022Applicant: Samsung Electronics Co., LTD.Inventors: Myunghee KIM, Seungran Park, Youngki Jung, Chulgyu Jung
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Patent number: 11514842Abstract: A display panel is provided. The display panel includes a plurality of light-emitting diodes constituting a plurality of sub-pixels of the display panel and configured to be divided into a plurality of groups; and a plurality of LED driving circuits configured to: receive a PWM data voltage in a scanning period; and based on the PWM data voltage, drive the plurality of light-emitting diodes by providing drive current to the plurality of light-emitting diodes for a time corresponding to the PWM data voltage in an emission period, wherein each of the plurality of LED driving circuits is configured to be connected to light-emitting diodes included in respective groups of the plurality of groups, and drive the light-emitting diodes of the respective groups.Type: GrantFiled: February 3, 2021Date of Patent: November 29, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki Jung, Tetsuya Shigeta, Jinho Kim, Chulgyu Jung
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Publication number: 20220376139Abstract: A light-emitting diode and a display module using the same is disclosed. The light-emitting diodes includes a first semiconductor layer, an active layer provided on the first semiconductor layer, a second semiconductor layer provided on the active layer, a first chip electrode covering a first portion of an upper surface of the second semiconductor layer and a portion of a first side surface of the second semiconductor layer, and a second chip electrode covering a second portion of the upper surface of the second semiconductor layer different from the first portion of the upper surface of the second semiconductor layer and covering a second side surface of the second semiconductor layer different from the first side surface of the second semiconductor layer.Type: ApplicationFiled: March 23, 2022Publication date: November 24, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Myunghee KIM, Seungran PARK, Youngki JUNG, Chulgyu JUNG
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Patent number: 11462523Abstract: A display module and a manufacturing method thereof is provided. The display module may include a substrate; a thin film transistor (TFT) layer disposed on a surface of the substrate; a plurality of LED packages including a connection substrate and a plurality of LEDs disposed on a first surface of the connection substrate; and a wiring configured to electrically connect the TFT layer and the plurality of LEDs. The wiring includes a first wiring for electrically coupling with the plurality of LEDs on the first surface, and a second wiring for electrically coupling with the TFT layer on a second surface of the connection substrate.Type: GrantFiled: May 28, 2020Date of Patent: October 4, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jinhee Kang, Taesoon Park, Youngki Jung, Chulgyu Jung
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Publication number: 20220238503Abstract: A display module is disclosed. The display module includes a substrate; a plurality of inorganic light-emitting diodes provided in a plurality of mounting grooves formed in the substrate, the plurality of inorganic light-emitting diodes including an inorganic light-emitting diode that has a first chip electrode and a second chip electrode; a first substrate electrode pad and a second substrate electrode pad provided at a bottom surface of a mounting groove from among the plurality of mounting grooves, the first substrate electrode pad being electrically coupled to the first chip electrode and the second substrate electrode pad being electrically coupled to the second chip electrode; and a third substrate electrode pad and a fourth substrate electrode pad provided around the mounting groove.Type: ApplicationFiled: April 18, 2022Publication date: July 28, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Myunghee KIM, Youngki JUNG, Donghwan KIM, Yong NAMKUNG, Chulgyu JUNG
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Patent number: 11308831Abstract: A display panel is provided. The display panel may include a glass, a driver formed on a first surface of the glass, and a circuit layer formed on a second surface of the glass. The circuit layer may include a plurality of pixel circuits configured to drive a plurality of micro light emitting diodes (LEDs) forming a plurality of pixels of the display panel; a plurality of driving circuits which are respectively connected to the driver via wiring formed over at least one side surface of the glass, and configured to supply driving signals to the plurality of pixel circuits based on signals received from the driver; and a plurality of redundancy driving circuits connected to the plurality of respective driving circuits in parallel, the plurality of redundancy driving circuits having a same circuit structure as the plurality of respective driving circuits.Type: GrantFiled: March 19, 2020Date of Patent: April 19, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki Jung, Jinhee Kang, Jinho Kim, Sangmin Shin, Chulgyu Jung
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Publication number: 20210241682Abstract: A display panel is provided. The display panel includes a plurality of light-emitting diodes constituting a plurality of sub-pixels of the display panel and configured to be divided into a plurality of groups; and a plurality of LED driving circuits configured to: receive a PWM data voltage in a scanning period; and based on the PWM data voltage, drive the plurality of light-emitting diodes by providing drive current to the plurality of light-emitting diodes for a time corresponding to the PWM data voltage in an emission period, wherein each of the plurality of LED driving circuits is configured to be connected to light-emitting diodes included in respective groups of the plurality of groups, and drive the light-emitting diodes of the respective groups.Type: ApplicationFiled: February 3, 2021Publication date: August 5, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki JUNG, Tetsuya SHIGETA, Jinho KIM, Chulgyu JUNG
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Publication number: 20210111168Abstract: Provided are a light emitting diode (LED) module that enables a freedom in structure design thereof using a fan-out interconnection and an insulating layer, and a display device having the same. The LED module having a multi-layer structure includes substrate; a LED located on the substrate and emitting light toward the substrate; a plurality of upper electrodes located on the LED and connected to the LED; an upper insulating layer provided to surround the plurality of upper electrodes; a film on glass (FOG) electrode located on the upper insulating layer; and a fan out interconnection structure configured to connect the plurality of upper electrodes to the FOG electrode through the upper insulating layer.Type: ApplicationFiled: October 14, 2020Publication date: April 15, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki JUNG, Sangmin Shin, Jinho Kim, Chulgyu Jung
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Patent number: 10957245Abstract: A display apparatus including: a printed circuit board; and a plurality of display modules arranged adjacent in a length direction of the printed circuit board, each display modules of the plurality of the display modules including: a thin film transistor substrate; a plurality of micro LEDs arranged on a surface of the thin film transistor substrate; a flexible printed circuit board (FPCB) through which the printed circuit board and the thin film transistor substrate; and a driver controlling the plurality of micro LEDs disposed on a surface of the FPCB.Type: GrantFiled: December 6, 2019Date of Patent: March 23, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chulgyu Jung, Jinho Kim, Sangmin Shin, Hoseop Lee, Youngki Jung
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Publication number: 20210028156Abstract: A display module and a manufacturing method thereof is provided. The display module may include a substrate; a thin film transistor (TFT) layer disposed on a surface of the substrate; a plurality of LED packages including a connection substrate and a plurality of LEDs disposed on a first surface of the connection substrate; and a wiring configured to electrically connect the TFT layer and the plurality of LEDs. The wiring includes a first wiring for electrically coupling with the plurality of LEDs on the first surface, and a second wiring for electrically coupling with the TFT layer on a second surface of the connection substrate.Type: ApplicationFiled: May 28, 2020Publication date: January 28, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jinhee KANG, Taesoon PARK, Youngki JUNG, Chulgyu JUNG
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Publication number: 20200302841Abstract: A display panel is provided. The display panel may include a glass, a driver formed on a first surface of the glass, and a circuit layer formed on a second surface of the glass. The circuit layer may include a plurality of pixel circuits configured to drive a plurality of micro light emitting diodes (LEDs) forming a plurality of pixels of the display panel; a plurality of driving circuits which are respectively connected to the driver via wiring formed over at least one side surface of the glass, and configured to supply driving signals to the plurality of pixel circuits based on signals received from the driver; and a plurality of redundancy driving circuits connected to the plurality of respective driving circuits in parallel, the plurality of redundancy driving circuits having a same circuit structure as the plurality of respective driving circuits.Type: ApplicationFiled: March 19, 2020Publication date: September 24, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki JUNG, Jinhee Kang, Jinho Kim, Sangmin Shin, Chulgyu Jung
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Publication number: 20200184880Abstract: A display apparatus including: a printed circuit board; and a plurality of display modules arranged adjacent in a length direction of the printed circuit board, each display modules of the plurality of the display modules including: a thin film transistor substrate; a plurality of micro LEDs arranged on a surface of the thin film transistor substrate; a flexible printed circuit board (FPCB) through which the printed circuit board and the thin film transistor substrate; and a driver controlling the plurality of micro LEDs disposed on a surface of the FPCB.Type: ApplicationFiled: December 6, 2019Publication date: June 11, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chulgyu JUNG, Jinho KIM, Sangmin SHIN, Hoseop LEE, Youngki JUNG
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Patent number: 10663778Abstract: This disclosure relates to a liquid crystal display and a display device. A plurality of photosensitive detectors is arranged in the frame region of the liquid crystal display panel. Light intensity distribution in the display region is estimated by a light intensity estimation module based on the light intensity detected by each photosensitive detector. Light intensity in a position corresponding to each light emitting pixel of the backlight source is determined based on the light intensity distribution in the display region estimated by the light intensity estimation module. Depending on the determined light intensity in a position corresponding to each light emitting pixel of the backlight source, luminance of the light emitting pixel in this corresponding position is controlled by a backlight driving circuit.Type: GrantFiled: July 21, 2016Date of Patent: May 26, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chengqi Zhou, Hong Wang, Yifang Chu, Chulgyu Jung, Shou Li
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Patent number: 10627563Abstract: A backlight module and a display device are provided. The backlight module includes a light guide plate and a prism film arranged at a light-exiting side of the light guide plate. The display device includes the above backlight module and a lower polarizer arranged on the prism film.Type: GrantFiled: February 22, 2017Date of Patent: April 21, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Kiman Kim, Chulgyu Jung
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Patent number: 10404220Abstract: A two-stage operational amplifier is provided to comprise a bias voltage generator, a first stage operational amplifier and a second stage operational amplifier, wherein the first stage operational amplifier comprises a folded cascode amplifier circuit and a cross coupling load, the cross coupling load is coupled to a load differential pair in the folded cascode amplifier circuit, the cross coupling load comprises two transistors, the two transistors in the cross coupling load and two transistors in the load differential pair constitute two current mirror structures, which are cross coupled. In the solution, the cross coupling load is added to the load differential pair in the folded cascode amplifier circuit, to increase gain of the two-stage operational amplifier by using positive feedback and negative conductance gain enhancement technology; while parameters of MOSFETs in the folded cascode amplifier circuit are properly set to reduce noise of the two-stage operational amplifier.Type: GrantFiled: April 21, 2017Date of Patent: September 3, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Gaoming Sun, Chulgyu Jung, Shou Li
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Patent number: 10388231Abstract: The present disclosure provides a method for controlling a display device, a control apparatus for a display device, and a display device comprising the control apparatus. The method for controlling a display device may comprise the steps of: determining whether or not to perform peak driving for respective backlight sub-regions of the display device, the backlight sub-regions corresponding to sub-display areas of the display device; and performing, in response to a result of the above determining step, data signal compensation at least for sub-display areas whose average luminance values are lower than a preset first luminance threshold among the sub-display areas to which the backlight sub-regions that are determined to be subjected to peak driving correspond.Type: GrantFiled: January 5, 2017Date of Patent: August 20, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chengqi Zhou, Yifang Chu, Chengte Lai, Shou Li, Chulgyu Jung