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公开(公告)号：US20230137937A1
公开(公告)日：2023-05-04
申请号：US17424965
申请日：2020-11-27
发明人： Jingwen ZHANG , Yunsheng XIAO , Miao WANG , Dan CAO
IPC分类号： G09G3/3258
摘要： The pixel circuit of the present disclosure includes: a light emitting module configured to emit light; a driving module configured to drive the light emitting module to emit light according to a driving voltage during a light emitting stage; a storage module configured to maintain and provide the driving voltage to the driving module during the light emitting stage; a first transistor, a first electrode of the first transistor being connected to a position where the driving module receives the driving voltage, and a second electrode of the first transistor being not directly connected to a signal source; a second transistor, a first electrode of the second transistor being connected to the first electrode of the first transistor, wherein a structure to which a second electrode of the second transistor is connected is different from a structure to which the second electrode of the first transistor is connected.
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公开(公告)号：US20240365587A1
公开(公告)日：2024-10-31
申请号：US18291922
申请日：2023-04-24
发明人： Dan CAO , Xiaoqing SHU , Wenhui GAO , Yonglin GUO , Yunsheng XIAO
IPC分类号： H10K59/121 , G09G3/3233 , H10K59/131
CPC分类号： H10K59/1213 , G09G3/3233 , H10K59/131 , G09G2300/0842 , G09G2320/0233
摘要： A display substrate includes pixel circuits and light-emitting devices. The pixel circuits include first pixel circuits and second pixel circuits. The light-emitting devices include first light-emitting devices and second light-emitting devices. A first pixel circuit is coupled to a first light-emitting device, and the first pixel circuit is at least partially opposite to the first light-emitting device. A second pixel circuit is coupled to a second light-emitting device, and an orthographic projection of the second pixel circuit and an orthographic projection of the second light-emitting device have no overlap. A width-to-length ratio of a channel of a driving transistor in the first pixel circuit is greater than a width-to-length ratio of a channel of a driving transistor in the second pixel circuit; and/or a channel capacitance of a compensation transistor in the first pixel circuit is larger than a channel capacitance of a compensation transistor in the second pixel circuit.
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公开(公告)号：US20220262309A1
公开(公告)日：2022-08-18
申请号：US17628554
申请日：2021-03-11
发明人： Kai ZHANG , Qiang FU , Songyuan MA , Dan CAO , Yiran LI
IPC分类号： G09G3/3233
摘要： A display substrate comprises: an AA and an AA′. The display substrate comprises: a base, and a VSS located in the AA′, a Gate, an Init1 and a plurality of display units located in the AA, disposed on the base. The display unite comprises: a driving structure layer and a light-emitting structure layer. The light-emitting structure layer comprises: a light-emitting element. The driving structure layer comprises a pixel driving circuit configured to drive the light-emitting element to emit light. The pixel driving circuit comprises: a reset sub-circuit. The reset sub-circuit is separately connected to the Gate, the Init1, and a first pole of the light-emitting element, and is configured to provide a signal of the Init1 to the first pole of the light-emitting element for initializing the first pole. A second pole of the light-emitting element is connected to the VSS. The Inti1 is electrically connected to the VSS.
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公开(公告)号：US20230351969A1
公开(公告)日：2023-11-02
申请号：US18346157
申请日：2023-06-30
发明人： Jingwen ZHANG , Yunsheng XIAO , Miao WANG , Dan CAO
IPC分类号： G09G3/3258
CPC分类号： G09G3/3258 , G09G2300/0842 , G09G2300/0819 , G09G2320/0233 , G09G2320/0247 , G09G2300/0426
摘要： The pixel circuit includes: a light emitting module configured to emit light; a driving module configured to drive the light emitting module to emit light according to a driving voltage during a light emitting stage; a storage module configured to maintain the driving voltage and to provide the driving voltage to the driving module during the light emitting stage; a first transistor, a first electrode of the first transistor being connected to a position where the driving module receives the driving voltage, and a second electrode of the first transistor being not directly connected to a signal source; a second transistor, a first electrode of the second transistor being connected to the first electrode of the first transistor, wherein a structure to which a second electrode of the second transistor is connected is different from a structure to which the second electrode of the first transistor is connected.
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公开(公告)号：US20240347000A1
公开(公告)日：2024-10-17
申请号：US18027128
申请日：2022-04-19
发明人： Tiaomei ZHANG , Dan CAO
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0247 , G09G2330/021
摘要： A pixel circuit and a driving method thereof, a display substrate and a display apparatus are provided, wherein the pixel circuit includes a first node control sub-circuit, a second node control sub-circuit, a light emitting control sub-circuit and a driving sub-circuit; the working process of the pixel circuit includes: a first initialization stage, a data writing stage, a second initialization stage and a light emitting stage; the second node control sub-circuit is configured to provide the signal of the second initial signal terminal to the fourth node under the control of the second reset signal terminal; the second initialization stage occurs between the data writing stage and the light emitting stage, and the signal of the second reset signal terminal is an effective level signal in the second initialization stage.
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公开(公告)号：US20240213263A1
公开(公告)日：2024-06-27
申请号：US17915421
申请日：2021-10-29
发明人： Huijuan YANG , Maoying LIAO , Yang ZHOU , Lu BAI , Jie DAI , Dan CAO
IPC分类号： H01L27/12
CPC分类号： H01L27/124 , H01L27/1218
摘要： The present disclosure relates to a dummy pixel circuit, a display panel, and a display device, which belongs to the field of display. The dummy pixel circuit is applicable to a display panel provided with two through vias and disposed between the two through vias, and the dummy pixel circuit includes a pixel sub-circuit and a dummy sub-circuit. The pixel sub-circuit includes one or more first transistors, wherein a control electrode of the first transistor is electrically connected to the first gate line. The dummy sub-circuit includes one or more second transistors, wherein a control electrode of the dummy sub-circuit is electrically connected to the first gate line, a first electrode of the second transistor is electrically connected to a first electrode of a corresponding one of the one or more first transistors, and a second electrode of the second transistor is electrically connected to a second electrode of the corresponding first transistor. Each of the one or more first transistors corresponds to at least one of the one or more second transistors. The second transistor consumes the power transmitted transferred by the first gate line, and thus a total load of the pixel circuit electrically connected to the first gate line is increased. In this way, the pixel, to which the pixel circuit electrically connected to the first gate line corresponds, has an increased luminance, thereby mitigating display mura of display panel.
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公开(公告)号：US20210150980A1
公开(公告)日：2021-05-20
申请号：US16839639
申请日：2020-04-03
发明人： Xinyu WEI , Dan CAO , Yonglin GUO , Yiran LI , Hongmei FAN
IPC分类号： G09G3/3233 , H01L27/32 , G09G3/3275
摘要： A display substrate, used in a display apparatus, includes a base substrate; a gate line, a data line and a pixel driving circuit on the base substrate, wherein the pixel driving circuit includes a driving transistor; an orthographic projection of the gate line on the base substrate and an orthographic projection of the data line on the base substrate have a first overlapping region, and an orthographic projection of the gate line on the base substrate and an orthographic projection of the control electrode of the driving transistor on the base substrate have a second overlapping region; a width of the gate line in the first overlapping region is less than a first preset width, and a width of the gate line in the second overlapping region is less than the second preset width.
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