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公开(公告)号：US20200035151A1
公开(公告)日：2020-01-30
申请号：US16071616
申请日：2017-09-30
发明人： Xiang FENG , Long HAN , Yipeng CHEN , Minghua XUAN , Ruizhi YANG , Sha LIU , Xiao SUN , Qiang ZHANG , Zhaokun YANG , Yun QIU
IPC分类号： G09G3/3225 , G09G3/36 , G06K9/00 , G06F3/041
摘要： The embodiments of the present disclosure disclose an OLED array substrate. The OLED array substrate comprises: a plurality of scan lines; a plurality of data lines; a plurality of OLED pixel units, each OLED pixel unit is connected to a corresponding data line and a corresponding scan line and being connected to a corresponding reset terminal; and a plurality of light detection units, each light detection unit is connected between the reset terminal of one OLED pixel unit and the corresponding data line, is configured to detect a light emitted by a detection light resource to generate a light detection signal, and output the light detection signal via the corresponding data line under a control of a reset signal from the reset terminal.
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公开(公告)号：US20240296780A1
公开(公告)日：2024-09-05
申请号：US17768126
申请日：2021-06-08
发明人： Ning CONG , Minghua XUAN , Can ZHANG , Xiaochuan CHEN , Lijun YUAN , Qi QI , Can WANG , Jinfei NIU
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2300/0842 , G09G2310/0267 , G09G2310/061 , G09G2310/08 , G09G2320/0233
摘要： Provided are a pixel circuit and a driving method therefor, a display substrate, and a display apparatus, which belong to the technical field of display. In the pixel circuit, a light-emission adjusting circuit can adjust a data signal written by a data write circuit into a first node and can adjust the potential of a second node according to the potential of the first node; and a light-emission control circuit can output a reference signal to a third node under the control of the potential of the second node. Furthermore, a light emission driving circuit needs to output a drive signal to a light-emitting element in response to the potential of the third node, so as to drive the light-emitting element to emit light. Therefore, when the pixel circuit is driven, the potentials of all signals can be flexibly set to control a moment at which the reference signal is output to the third node, so as to control the duration of the light emission driving circuit outputting the drive signal, thereby realizing control over the light emission duration of the light-emitting element. Therefore, the light-emitting element can work under a high current density with relatively good uniformity, thereby ensuring a relatively good display effect.
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公开(公告)号：US20240296782A1
公开(公告)日：2024-09-05
申请号：US18027494
申请日：2022-06-22
发明人： Ning CONG , Minghua XUAN , Can ZHANG , Can WANG , Jinfei NIU , Jingjing ZHANG , SeungWoo HAN
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2300/0842 , G09G2300/0861 , G09G2310/08
摘要： Embodiments of the present disclosure provide a pixel circuit, a driving method therefor and a display apparatus. The pixel circuit includes: an input circuit, configured to input data signals loaded to a first data signal terminal into corresponding input nodes in response to signals loaded to 2N−1 first scanning signal terminals; a control circuit, configured to control signals of 2N control nodes respectively in response to signals of at least two input nodes in the 2N−1 input nodes; an output circuit, configured to provide a signal of an men selection control signal terminal in 2N selection control signal terminals to an output node in response to a signal of an mth control node in the 2N control nodes; and a light-emitting drive circuit, configured to drive a to-be-driven device to work in response to a signal of the output node.
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公开(公告)号：US20240284711A1
公开(公告)日：2024-08-22
申请号：US18018563
申请日：2022-02-23
发明人： Ning CONG , Can ZHANG , Minghua XUAN , Jinfei NIU , Can WANG , Wei LI , Jingjing ZHANG , Xiaochuan CHEN
IPC分类号： H10K59/121 , H10K59/12
CPC分类号： H10K59/1216 , H10K59/1201
摘要： A display substrate, a preparation method therefor, and a display device. A display substrate includes a plurality of conductive layers disposed on a silicon-based substrate (101), a conductive layer includes a first sub-electrode plate (110) and a second sub-electrode plate (120), the first sub-electrode plate (110) and the second sub-electrode plate (120) form a first storage capacitor of a MOM capacitance structure, and another conductive layer comprises a third sub-electrode plate (130) and a fourth sub-electrode plate (140), the third sub-electrode plate (130) and the fourth sub-electrode plate (140) form a second storage capacitor of a MOM capacitance structure; the first sub-electrode plate (110) and the fourth sub-electrode plate (140) constitute a third storage capacitor of a MIM capacitance structure, and/or the second sub-electrode plate (120) and the third sub-electrode plate (130) constitute a fourth storage capacitor of a MIM capacitance structure.
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公开(公告)号：US20230043626A1
公开(公告)日：2023-02-09
申请号：US17787479
申请日：2021-03-03
发明人： Ning CONG , Xiaochuan CHEN , Minghua XUAN , Can ZHANG , Ming YANG , Lijun YUAN , Angran ZHANG
IPC分类号： G09G3/32
摘要： Provided is a pixel driving circuit configured to provide a signal to a to-be-driven element. The pixel driving circuit includes: a current control sub-circuit, configured to transmit a current signal; a time length control sub-circuit, configured to transmit a time signal; and an output sub-circuit, electrically connected with the time length control sub-circuit and the current control sub-circuit, respectively; where the time length control sub-circuit is further configured to control the output sub-circuit to be turned on or off based on the time signal; the output sub-circuit is configured to, when turned on, control a current applied to the to-be-driven element based on the current signal, where duration of two adjacent turn-ons of the output sub-circuit is same and duration of two adjacent turn-offs of the output sub-circuit is same.
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公开(公告)号：US20220036821A1
公开(公告)日：2022-02-03
申请号：US17203241
申请日：2021-03-16
发明人： Ning CONG , Minghua XUAN , Can ZHANG , Xiaochuan CHEN , Lijun YUAN , Qi QI
IPC分类号： G09G3/3233
摘要： A pixel driving circuit includes a current controlling module, an outputting module and a time length controlling module including a comparator, a first energy storage element, an offset voltage writing sub-circuit, and first and second output sub-circuits. First terminal of first energy storage element is connected with first input terminal of comparator and second terminal with the first output sub-circuit. The second output sub-circuit is connected with second input terminal of comparator. The offset voltage writing sub-circuit writes an offset voltage of comparator to the first energy storage element. One of the first and second output sub-circuits outputs time signal and the other outputs reference voltage signal. The comparator outputs comparison signal according to the time signal and the reference voltage signal. The current controlling module outputs current signal. The outputting module turns on responsive to the comparison signal and controls current of light-emitting unit according to the current signal.
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公开(公告)号：US20220406243A1
公开(公告)日：2022-12-22
申请号：US17418808
申请日：2020-12-28
发明人： Ning CONG , Minghua XUAN , Can ZHANG , Ming YANG , Can WANG , Lijun YUAN
IPC分类号： G09G3/32 , G09G3/3233
摘要： The present disclosure provides a pixel circuit, a method for driving the same, a display substrate, and a display device, which belong to the field of display technologies. The pixel circuit includes a compensating circuit which can adjust an electric potential of a second control node (a gate of a transistor controlling conduction or non-conduction between a first connection node and a second connection node) based on an electric potential of a first control node, and adjust an electric potential of the second control node based on an electric potential of the second connection node. When the pixel circuit is driven, electric potential of each control signal can be controlled, such that influence of a threshold voltage of a transistor on an electric potential finally output to the second control node is relatively small, that is, influence of drifting of a threshold voltage on display uniformity is reduced. The display device according to the present disclosure achieves a good display effect.
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公开(公告)号：US20220343835A1
公开(公告)日：2022-10-27
申请号：US17433244
申请日：2021-02-07
发明人： Ning CONG , Minghua XUAN , Can ZHANG , Ming YANG , Can WANG , Angran ZHANG , Hao CHEN , Xiaochuan CHEN
IPC分类号： G09G3/32
摘要： A pixel circuit, a drive method, a display substrate, and a display device are provided. The pixel circuit includes a light emitting device, a current supply sub-circuit, and a time control sub-circuit. The current supply sub-circuit is connected to a scanning signal terminal, a data signal terminal, a light emitting control terminal, a first power voltage terminal, the time control sub-circuit, and the light emitting device, and is configured to receive a data voltage of the data signal terminal and provide a drive current for the light emitting device. The time control sub-circuit is connected to the scanning signal terminal, a time length signal terminal, a second power voltage terminal, a direct current control signal terminal, and a direct current voltage terminal, and is configured to receive a time length voltage of the time length signal terminal and a direct current voltage input by the direct current voltage terminal.
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公开(公告)号：US20240242659A1
公开(公告)日：2024-07-18
申请号：US18005373
申请日：2021-11-24
发明人： Li XIAO , Seungwoo HAN , Dongni LIU , Haoliang ZHENG , Minghua XUAN , Jiao ZHAO , Liang CHEN , Xiaorong CUI
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2300/0861 , G09G2310/0251 , G09G2310/0262 , G09G2310/0297
摘要： A display substrate includes a plurality of data lines extending in a first direction, and a plurality of sub-pixels. A sub-pixel includes a pixel driving circuit and a light-emitting device. The pixel driving circuit includes a current control circuit, and a duration control circuit electrically connected to the current control circuit and the light-emitting device. The current control circuit is configured to generate a driving signal to drive the light-emitting device to emit light; and the duration control circuit is configured to generate a duration control signal to control a duration of a connection between the current control circuit and the light-emitting device. The current control circuit and the duration control circuit are electrically connected to a same data line.
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公开(公告)号：US20230043192A1
公开(公告)日：2023-02-09
申请号：US17789193
申请日：2021-08-16
发明人： Liang CHEN , Ke WANG , Haoliang ZHENG , Minghua XUAN , Dongni LIU , Hao CHEN , Qi QI
IPC分类号： H01L27/12 , H01L25/16 , H01L23/00 , G09G3/3233
摘要： A display backplane is provided, including a base, wherein pixel circuits, bonding electrodes, and bonding connection wires are on the base; the bonding electrodes are coupled to the bonding connection wires in a one-to-one correspondence; the bonding electrodes and the bonding connection wires are on two opposite surfaces of the base; the pixel circuits and the bonding connection wires are on a same side of the base; one end of each bonding connection wire is coupled to the bonding electrode through the first via in the base; the other end of each of at least some bonding connection wires is coupled to the pixel circuit; and an orthographic projection of at least one of the bonding electrodes and the bonding connection wires on the base is not coincident with an orthographic projection of the pixel circuit on the base.
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