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公开(公告)号:US20240355282A1
公开(公告)日:2024-10-24
申请号:US18602194
申请日:2024-03-12
发明人: Hidekazu MIYATA
IPC分类号: G09G3/3233
CPC分类号: G09G3/3233 , G09G2300/0413 , G09G2300/0819 , G09G2300/0852 , G09G2310/0262 , G09G2310/08 , G09G2320/0233 , G09G2320/045 , G09G2330/026 , G09G2330/027 , G09G2330/028
摘要: A display device includes a light-emitting element, a first transistor, a second transistor, a third transistor, a drive circuit, and a voltage compensation circuit. The drive circuit supplies, in an initial period, an initial voltage to a gate electrode of the first transistor, and supplies a data signal to the first electrode in a write period succeeding the initial period, and turns ON the third transistor. The voltage compensation circuit includes a first capacitive element, a second capacitive element, a first switch, and a second switch. The voltage compensation circuit switches, when the write period starts, from the state in which the second switch is ON to the state in which the second switch is OFF, and turns ON the first switch after the write period starts. The drive circuit turns ON the second transistor in a light ON period succeeding the turning ON of the first switch.
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公开(公告)号:US12112694B2
公开(公告)日:2024-10-08
申请号:US18374070
申请日:2023-09-28
发明人: Minjae Jeong , Jangmi Kang , Hyeongseok Kim , Junhyun Park , Mukyung Jeon
IPC分类号: G09G3/32
CPC分类号: G09G3/32 , G09G2300/0426 , G09G2300/043 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2300/0861 , G09G2310/0251 , G09G2310/0262 , G09G2310/08 , G09G2320/0233 , G09G2320/045
摘要: A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line which supplies a first driving voltage, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor connected between the first node and a second node and including a gate electrode connected to a first scan line, a third transistor connected between the second electrode of the first transistor and the second node and including a gate electrode connected to a second scan line, and a booting capacitor connected between the second node and the second scan line.
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公开(公告)号:US20240296794A1
公开(公告)日:2024-09-05
申请号:US18658590
申请日:2024-05-08
发明人: Juwon YOON , IIjeong LEE , Jiseon LEE , Choongyoul IM
IPC分类号: G09G3/3233 , H01L27/12 , H10K59/121 , H10K59/131
CPC分类号: G09G3/3233 , H01L27/1222 , H01L27/124 , H10K59/1213 , G09G2300/0819 , G09G2300/0861 , G09G2310/0251 , G09G2310/0262 , H10K59/1216 , H10K59/131
摘要: An organic light-emitting display apparatus including an organic light-emitting diode emitting visible light, a driving thin film transistor driving the organic light-emitting diode, and a compensation thin film transistor. The compensation thin film transistor includes a compensation gate electrode, a compensation semiconductor layer, a compensation source electrode, and a compensation drain electrode. The compensation gate electrode includes a first gate electrode, and a second gate electrode electrically connected to the first gate electrode. The compensation drain electrode is electrically connected to the driving gate electrode of the driving thin film transistor. The compensation semiconductor layer includes a first semiconductor region overlapping the first gate electrode and a second semiconductor region overlapping the second gate electrode and disposed further from the compensation drain electrode than the first semiconductor region, and an area of the first semiconductor region is different than an area of the second semiconductor region.
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公开(公告)号:US20240224661A1
公开(公告)日:2024-07-04
申请号:US18508985
申请日:2023-11-14
申请人: LG Display Co., Ltd.
发明人: Hee-Jin KIM , Hak-Min LEE
IPC分类号: H10K59/131 , G09G3/3233 , H10K59/122
CPC分类号: H10K59/131 , G09G3/3233 , H10K59/122 , G09G2300/0426 , G09G2300/0852 , G09G2310/0262
摘要: A dual-side organic light emitting display device comprising a transparent substrate including a pixel region, the pixel region including first and second regions; first and second driving elements in the first region and over the transparent substrate; a first organic light emitting diode in the second region and over the first and second driving elements, the first organic light emitting diode including a first electrode connected to the first driving element, a second electrode disposed over the first electrode and a first organic light emitting layer between the first and second electrodes; and a second organic light emitting diode in the first and second regions and on the first organic light emitting diode, the second organic light emitting diode including a third electrode disposed over the second electrode and connected to the second driving element and a second organic light emitting layer between the second and third electrodes.
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公开(公告)号:US20240212621A1
公开(公告)日:2024-06-27
申请号:US18601221
申请日:2024-03-11
发明人: Hyung Jun PARK , Yang Wan KIM , Byung Sun KIM , Su Jin LEE , Jae Yong LEE
IPC分类号: G09G3/3258 , G09G3/20 , G09G3/3233
CPC分类号: G09G3/3258 , G09G3/2003 , G09G3/3233 , G09G2300/0452 , G09G2300/0809 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0251 , G09G2310/0262 , G09G2320/0242
摘要: A display device includes first and second initialization voltage sources and first and second pixel circuits. The first initialization voltage source provides a first initialization voltage. The second initialization voltage source provides a second initialization voltage less than the first initialization voltage. The first pixel circuit includes a first organic light emitting diode. The second pixel circuit includes a second organic light emitting diode with an organic material having a band gap different from a band gap of an organic material in the first organic light emitting diode. The first pixel circuit is coupled to the first initialization voltage source and the second initialization voltage source. The second pixel circuit is coupled to a single initialization voltage source.
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公开(公告)号:US20240212615A1
公开(公告)日:2024-06-27
申请号:US18475830
申请日:2023-09-27
申请人: LG Display Co., Ltd.
发明人: Yong Won LEE , Ji Soo YEOM
IPC分类号: G09G3/3233
CPC分类号: G09G3/3233 , G09G2300/0819 , G09G2300/0852 , G09G2310/0262 , G09G2310/08 , G09G2320/045 , G09G2330/021 , G09G2330/06
摘要: Disclosed is a pixel circuit. The pixel circuit includes: a driving element connected to a first node, a second node, and a third node; a first switch element configured to be turned on to supply a data voltage to a fourth node; a second switch element configured to be turned on to supply a reference voltage or an initialization voltage to the fourth node; a third switch element configured to be turned on to connect the first node to the second node; a fourth switch element configured to be turned on to supply the reference voltage to the third node; a fifth switch element configured to be turned on a fourth gate signal to supply a pixel driving voltage to the first node; and a sixth switch element configured to be turned on to connect the third node to a fifth node.
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公开(公告)号:US20240212574A1
公开(公告)日:2024-06-27
申请号:US18511490
申请日:2023-11-16
申请人: LG Display Co., Ltd.
发明人: SunYoon KIM , Jin-Hyun JUNG , Byungjae LEE , Changwoo LEE
CPC分类号: G09G3/2096 , G09G3/32 , G09G2300/0426 , G09G2300/0842 , G09G2310/0262 , G09G2310/08 , G09G2320/041
摘要: Discussed are a display panel and a display device having the same. The display panel includes a plurality of subpixels. A gate line, a data line, and a reference voltage line are further disposed on the display panel. A gate driving circuit supplies a scan signal to the gate line. A data driving circuit converts image data into a data voltage and supplies the data voltages to the data line. A timing controller controls the gate driving circuit and the data driving circuit and generates compensation data for the image data using a sensing voltage detected through the reference voltage line. The display panel includes a plurality of sensing transistors disposed around a corresponding subpixel among the plurality of subpixels to connect the data line and the reference voltage line.
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公开(公告)号:US12020649B2
公开(公告)日:2024-06-25
申请号:US17758677
申请日:2020-08-24
申请人: GOOGLE LLC
发明人: Sangmoo Choi , Janghoon Song
IPC分类号: G09G3/3266 , G09G3/3225
CPC分类号: G09G3/3266 , G09G3/3225 , G09G2310/0262 , G09G2310/0286 , G09G2310/08 , G09G2320/0247 , G09G2320/0266 , G09G2330/021
摘要: A display can include a plurality of pixels arranged in a matrix of rows and columns, and a gate driver circuit including a plurality of row drivers configured as a shift register that sequentially and individually addresses the rows. The display panel can also include a first clock circuit configured to provide a first set of clock signals to a first portion of the row drivers to address a respective first portion of the rows. The first clock circuit can include a signal distribution circuit having a first input impedance. The display panel can also include a second clock circuit configured to provide a second set of clock signals to a second portion of the row drivers to address a respective second portion of the rows. The second clock circuit can include a signal distribution circuit having a second input impedance that is matched with the first input impedance.
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公开(公告)号:US11996028B2
公开(公告)日:2024-05-28
申请号:US17597948
申请日:2022-01-10
发明人: Linfeng Liu
IPC分类号: G09G3/20 , G09G3/32 , G09G3/3225
CPC分类号: G09G3/2081 , G09G3/2011 , G09G3/2022 , G09G3/32 , G09G3/3225 , G09G2300/0852 , G09G2310/0262 , G09G2310/027 , G09G2310/08
摘要: A pixel circuit and a display panel are provided in the present application. The pixel circuit includes a driving module, a pulse amplitude modulation module, a pulse width modulation module, an internal compensation module, and an electrical potential maintaining module. High grayscale display is controlled by the pulse amplitude modulation module in a pulse amplitude modulation manner, low grayscale display is controlled by the pulse width modulation module in a pulse width modulation manner, and the internal compensation module performs internal compensation on a first terminal of the driving module, to realize an internal compensation and hybrid driving of the pixel circuit.
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公开(公告)号:US20240144873A1
公开(公告)日:2024-05-02
申请号:US17772288
申请日:2021-05-20
发明人: Yao HUANG , Binyan WANG , Meng LI
IPC分类号: G09G3/3233
CPC分类号: G09G3/3233 , G09G2300/0408 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2310/0262 , G09G2310/08 , G09G2320/0233
摘要: A pixel circuit and a driving method thereof, a display substrate and a display device are provided. The pixel circuit includes a driving sub-circuit, a first switch sub-circuit and a first light-emitting control sub-circuit. The driving sub-circuit includes a control terminal connected with a first node, a first terminal connected with a second node and a second terminal connected with a third node, and is configured to control a driving signal from the first node to the third node for driving a light-emitting element; the first switch sub-circuit is configured to control conduction of the driving signal between the third node and a fourth node; the first light-emitting control sub-circuit is connected with a first electrode of the light-emitting element through a fifth node, and is configured to control conduction of the driving signal between the fourth node and the fifth node.
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