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公开(公告)号:US11862090B2
公开(公告)日:2024-01-02
申请号:US17989357
申请日:2022-11-17
Applicant: LG Display Co., Ltd.
Inventor: Taehwi Kim , Juhnsuk Yoo , Jungchul Kim
IPC: G09G3/3233 , G09G3/3291 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3266 , G09G3/3291 , G09G2300/0426 , G09G2300/0842 , G09G2310/0278 , G09G2320/0233
Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving transistor which includes a first electrode connected to a first node, a gate electrode connected to a second node, and a second electrode connected to a third node, and supplies a driving current to a light emitting device; a first transistor that is electrically connected between the first node and the second node; a second transistor that is electrically connected between the first node and a data voltage; a third transistor that is electrically connected between the first node and a power supply line that supplies a high potential voltage; and a storage capacitor that includes a first electrode connected to the high potential voltage and a second electrode connected to the second node.
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公开(公告)号:US10032413B2
公开(公告)日:2018-07-24
申请号:US15164704
申请日:2016-05-25
Applicant: LG Display Co., Ltd.
Inventor: Daekyu Kim , Jungchul Kim , Heekwang Kang , Junyoung Kwon
IPC: G09G3/3241 , G09G3/3233 , G09G3/3266 , G09G3/3291
CPC classification number: G09G3/3241 , G09G3/3233 , G09G3/3266 , G09G3/3291 , G09G2300/0426 , G09G2300/043 , G09G2300/0814 , G09G2300/0819 , G09G2300/0861 , G09G2310/0251 , G09G2310/0256 , G09G2310/0262 , G09G2310/0278 , G09G2320/0238 , G09G2320/043
Abstract: An organic light emitting display comprises a display panel having a plurality of pixels, a gate drive circuit that drives scan lines and emission lines on the display panel, and a data drive circuit that drives data lines on the display panel, (n−1)th and nth pixels arranged in a row, a transistor array having a driving transistor, a sampling transistor, and a first initial transistor, and a capacitor connected between an initial voltage input terminal and the sampling transistor. A gate electrode of the first initial transistor for initializing the driving transistor of the nth pixel is connected to a scan line in the (n−1)th pixel.
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公开(公告)号:US09805657B2
公开(公告)日:2017-10-31
申请号:US14745697
申请日:2015-06-22
Applicant: LG Display Co., Ltd.
Inventor: Junyoung Kwon , Jaeho Sim , Jungchul Kim , Euncheol Eom
IPC: G09G5/00 , G09G3/3266
CPC classification number: G09G3/3266 , G09G2300/0814 , G09G2300/0819 , G09G2310/0286 , G09G2320/0247 , G09G2320/045 , G09G2330/026
Abstract: A circuit has a first portion configured to act as a shift register to provide an output signal via an output terminal, and a second portion configured to act as an inverter to invert the output signal at the output terminal of said first portion from a logic high state to a logic low state or vice versa. This is to forcibly turn off one or more transistors in a pixel circuit that provides subpixel or pixel-related control in an OLED display, such that an anode voltage of an organic light emitting diode does not exceed a turn-on voltage thereof.
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公开(公告)号:US10127859B2
公开(公告)日:2018-11-13
申请号:US15621866
申请日:2017-06-13
Applicant: LG Display Co., Ltd.
Inventor: Sungwook Chang , Juhnsuk Yoo , Jungchul Kim , Sungwook Yoon , Hoyoung Ko
IPC: G09G3/3258 , G09G3/3233 , H01L27/32
Abstract: An electroluminescent display is disclosed. An electroluminescent display comprises a display panel including a plurality of pixels, each of the plurality of pixels including subpixels. A pixel circuit of each subpixels includes a driving transistor configured to drive the electroluminescent diode, a first switching transistor configured to supply a first voltage to a gate of the driving transistor in response to a first scan signal, a second switching transistor configured to supply a second voltage to the gate of the driving transistor in response to a second scan signal, a third switching transistor configured to supply the second voltage to a first electrode of the driving transistor in response to the second scan signal, a fourth switching transistor configured to supply a first supply voltage to a second electrode of the driving transistor in response to an emission control signal, a first capacitor between a first node connected to the gate electrode of the driving transistor and a second node connected to the second electrode of the driving transistor, and a second capacitor between the second node and a power supply line supplied with the second voltage or the first supply voltage.
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公开(公告)号:US20230206844A1
公开(公告)日:2023-06-29
申请号:US17989357
申请日:2022-11-17
Applicant: LG Display Co., Ltd.
Inventor: Taehwi Kim , Juhnsuk Yoo , Jungchul Kim
IPC: G09G3/3233 , G09G3/3291 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3291 , G09G3/3266 , G09G2300/0426 , G09G2310/0278 , G09G2300/0842 , G09G2320/0233
Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving transistor which includes a first electrode connected to a first node, a gate electrode connected to a second node, and a second electrode connected to a third node, and supplies a driving current to a light emitting device; a first transistor that is electrically connected between the first node and the second node; a second transistor that is electrically connected between the first node and a data voltage; a third transistor that is electrically connected between the first node and a power supply line that supplies a high potential voltage; and a storage capacitor that includes a first electrode connected to the high potential voltage and a second electrode connected to the second node.
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公开(公告)号:US10565929B2
公开(公告)日:2020-02-18
申请号:US16016438
申请日:2018-06-22
Applicant: LG Display Co., Ltd.
Inventor: Daekyu Kim , Jungchul Kim , Heekwang Kang , Junyoung Kwon
IPC: G09G3/32 , G09G3/3241 , G09G3/3233 , G09G3/3266 , G09G3/3291
Abstract: An organic light emitting display comprises a display panel having a plurality of pixels, a gate drive circuit that drives scan lines and emission lines on the display panel, and a data drive circuit that drives data lines on the display panel, (n−1)th and nth pixels arranged in a row, a transistor array having a driving transistor, a sampling transistor, and a first initial transistor, and a capacitor connected between an initial voltage input terminal and the sampling transistor. A gate electrode of the first initial transistor for initializing the driving transistor of the nth pixel is connected to a scan line in the (n−1)th pixel.
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公开(公告)号:US10535300B2
公开(公告)日:2020-01-14
申请号:US15188447
申请日:2016-06-21
Applicant: LG DISPLAY CO., LTD.
Inventor: Jungchul Kim , Junyoung Kwon
IPC: G09G3/3233
Abstract: Provided is an organic light emitting diode (OLED) display which includes a driving circuit and pixels arranged on pixel rows. In a (j−1)-th horizontal period, the driving circuit samples a threshold voltage of a driving Transistor (DT) of each pixel arranged on the (j−1)-th pixel row, and initializes a voltage of a gate electrode of a driving TFT of each pixel arranged on the j-th pixel row. In addition, in a j-th horizontal period, the driving circuit samples a threshold voltage of the driving TFT of each pixel arranged on the j-th pixel row.
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公开(公告)号:US09735388B2
公开(公告)日:2017-08-15
申请号:US14939088
申请日:2015-11-12
Applicant: LG Display Co., Ltd.
Inventor: Jungchul Kim
IPC: H01L51/52 , H01L27/32 , G09G3/3225
CPC classification number: H01L51/5228 , G09G3/3225 , H01L27/3276 , H01L51/5253
Abstract: The present disclosure relates to a narrow bezel large area organic light emitting diode display. An organic light emitting diode display includes a substrate having a display area and a non-display area; a gate driver disposed in the non-display area; a ground line overlapping on the gate driver with a passivation layer; an anode electrode disposed in the display area; an organic light emission layer disposed in the display area and stacked on the anode electrode; and a cathode electrode stacked on the organic light emission layer and contacting the ground line.
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公开(公告)号:US09373299B2
公开(公告)日:2016-06-21
申请号:US13939361
申请日:2013-07-11
Applicant: LG DISPLAY CO., LTD.
Inventor: Taro Hasumi , Jino Lee , Jungchul Kim , Jaehee Park , Sehwan Na
IPC: G09G3/36 , G02F1/1345 , H01L27/32
CPC classification number: G09G3/3696 , G02F1/13452 , H01L27/3276
Abstract: A display device and method of forming a display device are provided. A display device includes: a first auxiliary electrode coupled to a first power voltage supply line; a second auxiliary electrode coupled to a second power voltage supply line with a first link electrode; an active area, comprising: scan lines; data lines; first voltage lines; second voltage lines; and pixels; and a display drive circuit configured to supply data voltages to data links coupled to the data lines, wherein the first auxiliary electrode, the second auxiliary electrode, the first power voltage supply line, the second power voltage supply line, the data links, and the display drive circuit being in a bezel area corresponding to an area outside the active area, the second auxiliary electrode being between the first auxiliary electrode and the active area, the first auxiliary electrode being between the second auxiliary electrode and the display drive circuit.
Abstract translation: 提供一种形成显示装置的显示装置和方法。 显示装置包括:耦合到第一电源电压线的第一辅助电极; 耦合到具有第一连接电极的第二电源电压线的第二辅助电极; 活动区域,包括:扫描线; 数据线 第一电压线 第二电压线; 和像素; 以及显示驱动电路,被配置为向耦合到数据线的数据链路提供数据电压,其中第一辅助电极,第二辅助电极,第一电源电压供给线,第二电源电压线,数据链路和 显示驱动电路位于与有源区域外的区域对应的边框区域中,第二辅助电极位于第一辅助电极和有源区域之间,第一辅助电极位于第二辅助电极和显示驱动电路之间。
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公开(公告)号:US20240087530A1
公开(公告)日:2024-03-14
申请号:US18514762
申请日:2023-11-20
Applicant: LG Display Co., Ltd.
Inventor: Taehwi Kim , Juhnsuk Yoo , Jungchul Kim
IPC: G09G3/3233 , G09G3/3266 , G09G3/3291
CPC classification number: G09G3/3233 , G09G3/3266 , G09G3/3291 , G09G2300/0426 , G09G2300/0842 , G09G2310/0278 , G09G2320/0233
Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving transistor which includes a first electrode connected to a first node, a gate electrode connected to a second node, and a second electrode connected to a third node, and supplies a driving current to a light emitting device; a first transistor that is electrically connected between the first node and the second node; a second transistor that is electrically connected between the first node and a data voltage; a third transistor that is electrically connected between the first node and a power supply line that supplies a high potential voltage; and a storage capacitor that includes a first electrode connected to the high potential voltage and a second electrode connected to the second node.
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