Patents by Inventor Chul Nam
Chul Nam 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: 20250169297Abstract: A display panel including a display region including a first pixel region where a plurality of pixels are disposed, and a sensing region including a second pixel region where a plurality of pixel groups are disposed, and a light transmitting part disposed between the plurality of pixel groups, wherein the sensing region includes a light shield layer, and a metal layer disposed over the light shield layer, wherein the light shield layer in the sensing region includes a first hole corresponding to the light transmitting part, wherein the metal layer in the sensing region includes a second hole that overlaps with the first hole in the light shield layer.Type: ApplicationFiled: January 21, 2025Publication date: May 22, 2025Applicant: LG DISPLAY CO., LTD.Inventors: Duk Young JEONG, Chul NAM, Byeong Seong SO
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Publication number: 20250107383Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: ApplicationFiled: December 10, 2024Publication date: March 27, 2025Inventors: Hyung Uk Jang, Chul Nam
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Patent number: 12238981Abstract: A method of fabricating a display panel including a display region having a first pixel region where pixels are disposed, and a sensing region having a second pixel region where pixel groups are disposed and a light transmitting part disposed between the pixel groups, is discussed. The method can include forming a light shield layer at least in the sensing region, wherein the light shield layer includes an opening hole corresponding to the light transmitting part and exposes the light transmitting part to a laser beam through the opening hole. The method can further include forming a metal layer spaced apart from the light blocking layer in the first pixel region of the display region and the sensing region, and irradiating the laser beam to at least the sensing region to remove the metal layer from the light transmitting part.Type: GrantFiled: July 24, 2023Date of Patent: February 25, 2025Assignee: LG DISPLAY CO., LTD.Inventors: Duk Young Jeong, Chul Nam, Byeong Seong So
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Patent number: 12200999Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: GrantFiled: October 6, 2023Date of Patent: January 14, 2025Assignee: LG Display Co., Ltd.Inventors: Hyung Uk Jang, Chul Nam
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Publication number: 20240315099Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.Type: ApplicationFiled: May 21, 2024Publication date: September 19, 2024Inventors: Donghyun Lee, Chul Nam, Hyuck Choi
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Patent number: 12022703Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.Type: GrantFiled: July 8, 2022Date of Patent: June 25, 2024Assignee: LG Display Co., Ltd.Inventors: Donghyun Lee, Chul Nam, Hyuck Choi
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Publication number: 20240040879Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: ApplicationFiled: October 6, 2023Publication date: February 1, 2024Inventors: Hyung Uk Jang, Chul Nam
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Publication number: 20230371322Abstract: A method of fabricating a display panel including a display region having a first pixel region where pixels are disposed, and a sensing region having a second pixel region where pixel groups are disposed and a light transmitting part disposed between the pixel groups, is discussed. The method can include forming a light shield layer at least in the sensing region, wherein the light shield layer includes an opening hole corresponding to the light transmitting part and exposes the light transmitting part to a laser beam through the opening hole. The method can further include forming a metal layer spaced apart from the light blocking layer in the first pixel region of the display region and the sensing region, and irradiating the laser beam to at least the sensing region to remove the metal layer from the light transmitting part.Type: ApplicationFiled: July 24, 2023Publication date: November 16, 2023Applicant: LG DISPLAY CO., LTD.Inventors: Duk Young JEONG, Chul NAM, Byeong Seong SO
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Patent number: 11818934Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: GrantFiled: August 25, 2021Date of Patent: November 14, 2023Assignee: LG Display Co., Ltd.Inventors: Hyung Uk Jang, Chul Nam
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Publication number: 20220344447Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.Type: ApplicationFiled: July 8, 2022Publication date: October 27, 2022Inventors: Donghyun LEE, Chul NAM, Hyuck CHOI
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Publication number: 20220069028Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: ApplicationFiled: August 25, 2021Publication date: March 3, 2022Inventors: Hyung Uk Jang, Chul Nam
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Patent number: 11232756Abstract: An electroluminescent display device having a plurality of pixels is disclosed. Each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, to generate pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, a light emitting element connected between the fourth node and an input terminal for a low-level source voltage, an internal compensator including first and second capacitors, and switching transistors, and a kick-back compensation transistor to apply a DC voltage higher than an initialization voltage to the first node in a kick-back compensation period between an initialization period and a data writing period.Type: GrantFiled: December 9, 2020Date of Patent: January 25, 2022Assignee: LG Display Co., Ltd.Inventors: Hyung-Uk Jang, Chul Nam, Byeong-Seong So, Young-Sung Cho
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Publication number: 20220005906Abstract: Provided are a display panel and a method of fabricating the same. The display panel includes a display region including a first pixel region where a plurality of pixels are disposed, a sensing region including a second pixel region where a plurality of pixel groups are disposed, and a light transmitting part disposed between the pixel groups. At least the second pixel region includes a light shield layer, and the light shield layer includes an opening hole corresponding to the light transmitting part.Type: ApplicationFiled: June 30, 2021Publication date: January 6, 2022Applicant: LG DISPLAY CO., LTD.Inventors: Duk Young JEONG, Chul NAM, Byeong Seong SO
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Publication number: 20210201759Abstract: An electroluminescent display device has a plurality of pixels and each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, the driving transistor generating pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, an internal compensator comprising a first capacitor connected between the first node and a second node, and a second capacitor connected between the second node and an input terminal for the high-level source voltage, the internal compensator controlling a threshold voltage of the driving transistor with reference to a first scan signal, a second scan signal opposite to the first scan signal in phase, a third scan signal lagging the first scan signal in phase, a fourth scan signal leading the first scan signal in phase, and an emission signal, and a light emitting element connected between a fifth node to be connected to the fourth node and an inpType: ApplicationFiled: December 28, 2020Publication date: July 1, 2021Applicant: LG Display Co., Ltd.Inventors: Young-Sung Cho, Chul Nam, Byeong-Seong So, Hyung-Uk Jang
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Publication number: 20210201827Abstract: An electroluminescent display device having a plurality of pixels is disclosed. Each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, to generate pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, a light emitting element connected between the fourth node and an input terminal for a low-level source voltage, an internal compensator including first and second capacitors, and switching transistors, and a kick-back compensation transistor to apply a DC voltage higher than an initialization voltage to the first node in a kick-back compensation period between an initialization period and a data writing period.Type: ApplicationFiled: December 9, 2020Publication date: July 1, 2021Inventors: Hyung-Uk JANG, Chul NAM, Byeong-Seong SO, Young-Sung CHO
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Publication number: 20200194532Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.Type: ApplicationFiled: December 6, 2019Publication date: June 18, 2020Inventors: Donghyun LEE, Chul NAM, Hyuck CHOI
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Patent number: 9465268Abstract: An LCD device includes a plurality of first vertical gate lines and a plurality of data lines vertically disposed in a liquid crystal panel, a plurality of second horizontal gate lines horizontally disposed in the liquid crystal panel, and a plurality of driving ICs disposed in an upper or lower non-display area of the liquid crystal panel. The plurality of horizontal gate lines and the plurality of vertical gate lines may be disposed on different layers. The plurality of vertical gate lines and the plurality of horizontal gate lines are electrically connected to each other in respective pairs through a contact in an overlapping area therebetween.Type: GrantFiled: May 30, 2013Date of Patent: October 11, 2016Assignee: LG Display Co., Ltd.Inventors: JongSin Park, Chul Nam, JaeHyung Jo
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Patent number: 9429780Abstract: An LCD device includes a plurality of first gate lines and a plurality of data lines vertically formed in a liquid crystal panel, a plurality of second gate lines horizontally formed in the liquid crystal panel, and a plurality of driving ICs disposed in an upper or lower non-display area of the liquid crystal panel, connected to the plurality of first gate lines to supply a scan signal, and connected to the plurality of data lines to supply data voltages. The plurality of first gate lines and the plurality of second gate lines are electrically connected to each other in pairs through a contact in an overlapping area therebetween, and the plurality of first gate lines and the plurality of data lines are formed on different layers.Type: GrantFiled: December 10, 2013Date of Patent: August 30, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Jae Hyung Jo, Chul Nam, Jong Sin Park
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Patent number: 9389476Abstract: Disclosed is an LCD device that includes a plurality of horizontal gate lines provided in a horizontal direction in a liquid crystal panel, a plurality of data lines and a plurality of vertical gate lines provided in a vertical direction in the liquid crystal panel, and a driving IC connected to the plurality of vertical gate lines to supply a gate driving signal, and connected to the plurality of data lines to supply data voltages. One of the horizontal gate lines is connected to at least two vertical gate lines, and the driving IC supplies the same gate driving signal to the at least two vertical gate lines.Type: GrantFiled: November 15, 2013Date of Patent: July 12, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Jong Sin Park, Chul Nam, Jae Hyung Jo
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Patent number: 9362316Abstract: Disclosed is a display device which includes: a plurality of gate lines arranged in a first direction; a plurality of data lines arranged in a second direction crossing the first direction; a plurality of jumping electrodes each disposed a first edge portion of each of the data lines; and a plurality of shield portions disposed between the jumping electrodes. Such a display device allows the shield portions to be disposed between the jumping electrodes. As such, the display device can prevent a light leak phenomenon due to an electric field which is generated by the shortened distance between the front edge portions of the data lines.Type: GrantFiled: December 19, 2014Date of Patent: June 7, 2016Assignee: LG Display Co., Ltd.Inventors: Young Jik Jo, Chul Nam