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公开(公告)号：US11804172B2
公开(公告)日：2023-10-31
申请号：US17941990
申请日：2022-09-09
发明人： Jung Hwan Hwang , Hyun Joon Kim , Kye Uk Lee , Jun Ki Jeong , Sang Jin Jeon
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2310/027 , G09G2310/0297
摘要： A display device includes connection lines, pulse amplitude modulation (PAM) data lines configured to receive pulse width modulation (PWM) data voltages, PWM data lines configured to receive the PWM data voltages, a first connection control line configured to receive a first connection control signal, a second connection control line configured to receive a second connection control signal, subpixels connected to the PWM data lines and the PAM data lines, and a first demultiplexer (demux) unit configured to connect the connection lines to the PAM data lines or to the PWM data lines according to the first connection control signal and the second connection control signal.
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公开(公告)号：US11514834B2
公开(公告)日：2022-11-29
申请号：US17231492
申请日：2021-04-15
IPC分类号： G09G3/20 , G02F1/1333 , F21V8/00
摘要： A tiled display device includes an array of a plurality of display panels. Each of the plurality of display panels includes a plurality of pixels constituting a plurality of pixel rows and a plurality of pixel columns, a data distributor disposed between a first pixel of a first pixel row among the plurality of pixel rows and a second pixel of the first pixel row adjacent to the first pixel in a first direction, and a scan driver disposed between the second pixel and a third pixel adjacent to the second pixel in the first direction.
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公开(公告)号：US11257437B2
公开(公告)日：2022-02-22
申请号：US17092495
申请日：2020-11-09
发明人： Hyun Joon Kim , Jun Ki Jeong
IPC分类号： G09G3/3266
摘要： A pixel of a light-emitting display device includes a capacitor, a first transistor, a second transistor including a gate receiving a gate writing signal, a third transistor including a gate receiving a scan signal, a fourth transistor including a gate receiving a gate initialization signal, a fifth transistor including a gate receiving a first emission signal, a sixth transistor including a gate receiving a second emission signal, and a light-emitting diode. The scan signal and the gate writing signal may be provided at a first frequency, and the first emission signal, the second emission signal and the gate initialization signal may be provided at a second frequency higher than the first frequency.
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公开(公告)号：US10650748B2
公开(公告)日：2020-05-12
申请号：US15863148
申请日：2018-01-05
发明人： Soon-Dong Kim , Il-Joo Kim , Jun Ki Jeong , Jin-Wook Yang , Gyung Soon Park
IPC分类号： G09G3/3258 , G09G3/3266 , G09G3/3291 , H01L27/32 , G09G3/3233 , G09G3/3225 , H01L27/12
摘要： Example embodiments of the present disclosure provide a display device including: a plurality of pixels; a first scan gate line and a second scan gate line configured to transfer scan signals to a first pixel row of the pixels; a plurality of first gate bridges connected with the first scan gate line to transfer the scan signals to a plurality of first pixels at the first pixel row; a plurality of second gate bridges connected with the second scan gate line to transfer the scan signals to a plurality of second pixels at the first pixel row; a plurality of first data lines configured to supply a plurality of data voltages corresponding to the first pixels; and a plurality of second data lines configured to supply a plurality of data voltages corresponding to the second pixels, wherein two of the first data lines are positioned between two first pixels corresponding thereto, and two of the second data lines are positioned between two second pixels corresponding thereto.
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公开(公告)号：US10476032B2
公开(公告)日：2019-11-12
申请号：US16239920
申请日：2019-01-04
发明人： Gyung Soon Park , Sang Woo Kim , Il Joo Kim , Jae Min Shin , Jun Ki Jeong
IPC分类号： H01J1/62 , H01L51/52 , H01L51/00 , H01L51/50 , G09G3/3266 , G09G3/3275 , H01L27/32
摘要： A display device includes a substrate including a display region, a first non-display region in the display region and a second non-display region outside the display region. A pixel array layer is disposed on the display region of the substrate. An encapsulation layer is disposed on the display region. The encapsulation layer is disposed on the first and second non-display regions of the substrate. The first non-display region includes a through hole penetrating the pixel array layer and the substrate. An encapsulation groove is spaced apart from the through hole. An inner wall of the through hole and an inner wall of the encapsulation groove are at least partially covered with the encapsulation layer. An end face of the encapsulation layer facing away from the pixel array layer has an irregular shape when viewed from a side of the substrate opposite the pixel array layer.
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公开(公告)号：US12080724B2
公开(公告)日：2024-09-03
申请号：US17737707
申请日：2022-05-05
发明人： Jun Ki Jeong , Hyun Joon Kim , Mee Hye Jung
CPC分类号： H01L27/1248 , G09G3/32 , H01L25/167 , G09G2300/0439 , G09G2300/0819 , G09G2300/0842 , G09G2310/0243 , G09G2310/08 , G09G2330/04 , G09G2330/12 , H01L24/05 , H01L33/62 , H01L2224/05027 , H01L2224/05073 , H01L2224/05562 , H01L2224/05573
摘要： A light emitting display device includes a pixel circuit unit, a data distribution unit, a plurality of signal generating units, a unit light emitting diode, and a dummy opening. The pixel circuit unit is configured to generate an output current. The data distribution unit is configured to apply a data voltage to the pixel circuit unit through a data line. The plurality of signal generating units are respectively configured to apply a scan signal and a light emission control signal to the pixel circuit unit through a plurality of signal lines. The unit light emitting diode is configured to receive the output current of the pixel circuit unit and is attached to the pixel circuit unit. The dummy opening is formed in the region where the pixel circuit unit, the data distribution unit, and a plurality of signal generating units are not positioned.
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公开(公告)号：US11908392B2
公开(公告)日：2024-02-20
申请号：US18072507
申请日：2022-11-30
发明人： Jun Ki Jeong , Hyun Joon Kim , Jung Hwan Hwang
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2300/0852 , G09G2320/0233
摘要： A display device including: a first transistor configured to control a control current based on a voltage of a first node; a second transistor configured to electrically connect a second node that is a first electrode of the first transistor to a first data line in response to a scan write signal; a third transistor configured to control a driving current based on a voltage of a third node; a fourth transistor configured to electrically connect a fourth node that is a first electrode of the third transistor to a second data line in response to the scan write signal; a fifth transistor configured to control the driving current based on a voltage of a fifth node having received the control current; and a light emitting element configured to receive the driving current, wherein the fifth transistor is of a different type from that of the first to fourth transistors.
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公开(公告)号：US11705051B2
公开(公告)日：2023-07-18
申请号：US17849277
申请日：2022-06-24
发明人： Jung Hwan Hwang , Hyun Joon Kim , Kye Uk Lee , Sang Jin Jeon , Jun Ki Jeong
IPC分类号： G09G3/3241 , G09G3/36 , G09G3/3208 , G09G3/3233 , G09G3/22
CPC分类号： G09G3/22 , G09G3/3208 , G09G3/3233 , G09G3/3241 , G09G3/3648 , G09G2330/025 , G09G2330/028
摘要： A display device includes a first pixel driver connected to a sweep line, the first pixel driver generating a control current based on a first data voltage, a second pixel driver connected to a scan control line, the second pixel driver generating a driving current based on a second data voltage and controlling a period for which the driving current flows, based on the control current, and a light-emitting element connected to the second pixel driver to receive the driving current. The first pixel driver includes a first transistor generating the control current based on the first data voltage, a second transistor providing the first data voltage to a first electrode of the first transistor based on a scan write signal, and a first capacitor including a first capacitor electrode connected to a gate electrode of the first transistor, and a second capacitor electrode connected to the sweep line.
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公开(公告)号：US11341878B2
公开(公告)日：2022-05-24
申请号：US16821706
申请日：2020-03-17
发明人： Hyun Joon Kim , Jun Ki Jeong , Kyung Hoon Chung , Kyung Bae Kim , Seung Chan Lee , Chong Chul Chai
IPC分类号： G09G3/00
摘要： A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.
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公开(公告)号：US09728150B2
公开(公告)日：2017-08-08
申请号：US14690130
申请日：2015-04-17
发明人： Jun Ki Jeong , Kwang Chul Jung , Il Gon Kim
IPC分类号： G09G5/00 , G09G3/36 , G02F1/1362
CPC分类号： G09G3/3666 , G02F1/136286 , G09G2300/0408 , G09G2300/0426 , G09G2310/0278 , G09G2310/0281 , G09G2360/12
摘要： A display panel includes a display unit with a first area and a second area, first gate lines on the first area and the second area that extend in a first direction in the first area and in a third direction in the second area, while sections extending in the first direction and in a second direction are repeated, and second gate lines on the second area that extend in the third direction while sections extending in the first direction and in the second direction are repeated. The second gate line includes a plurality of sub gate lines that extend in the second direction in the second area, and one end of each of the plurality of sub gate lines is connected to one end of each of the plurality of second gate lines.
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