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1.发明授权公开(公告)号：US11893934B2
公开(公告)日：2024-02-06
申请号：US17256504
申请日：2019-09-05
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Han Yue , Minghua Xuan , Can Zhang , Can Wang , Ming Yang , Ning Cong , Angran Zhang , Jiao Zhao , Xiaochuan Chen
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/029 , G09G2320/045 , G09G2330/08 , G09G2330/10 , G09G2330/12
Abstract: A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.
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公开(公告)号：US11955061B2
公开(公告)日：2024-04-09
申请号：US17787479
申请日：2021-03-03
Inventor： Ning Cong , Xiaochuan Chen , Minghua Xuan , Can Zhang , Ming Yang , Lijun Yuan , Angran Zhang
IPC: G09G3/3208 , G09G3/32 , G09G3/3233 , G09G3/3258 , H03K5/24
CPC classification number: G09G3/32 , G09G2300/0842 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0247
Abstract: 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：US11663955B2
公开(公告)日：2023-05-30
申请号：US17433244
申请日：2021-02-07
Inventor： Ning Cong , Minghua Xuan , Can Zhang , Ming Yang , Can Wang , Angran Zhang , Hao Chen , Xiaochuan Chen
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0426 , G09G2310/0278 , G09G2310/08
Abstract: 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：US11195467B2
公开(公告)日：2021-12-07
申请号：US16918960
申请日：2020-07-01
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Han Yue , Can Zhang , Can Wang , Angran Zhang , Minghua Xuan
IPC: G09G3/3258
Abstract: A pixel driving circuit and a display device are provided. The pixel driving circuit includes a voltage control circuit and a light-emitting time control circuit. The voltage control circuit is configured to control a voltage at a voltage writing node according to a first data voltage on a first data line; the light-emitting time control circuit is configured to connect the voltage writing node to a first electrode of a light-emitting device or disconnect the voltage writing node from the first electrode of the light-emitting device according to a second data voltage on a second data line and a reference voltage at a reference voltage terminal; and a second electrode of the light-emitting device is electrically connected to a first voltage terminal.
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公开(公告)号：US11860382B2
公开(公告)日：2024-01-02
申请号：US16841883
申请日：2020-04-07
Applicant: BOE Technology Group Co., Ltd.
Inventor： Can Wang , Can Zhang , Minghua Xuan , Xiaochuan Chen , Angran Zhang , Han Yue , Ming Yang , Ning Cong , Jiao Zhao
IPC: G02B3/00 , G02B5/00 , G02B5/20 , H10K50/844 , H10K50/858 , H10K50/86 , H10K59/12 , H10K59/38
CPC classification number: G02B3/0012 , G02B5/003 , G02B5/201 , H10K50/844 , H10K50/858 , H10K50/865 , H10K59/12 , H10K59/38
Abstract: The disclosure provides an optical lens structure, a method for manufacturing the same, and a display apparatus. The optical lens structure includes a substrate layer; and a plurality of optical lenses on the substrate layer. The optical lens includes a color resist material; the optical lenses are arranged in an array, and color resist materials of adjacent optical lenses have different colors from each other.
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Patent Agency Ranking
公开(公告)号：US11373583B2
公开(公告)日：2022-06-28
申请号：US16955171
申请日：2019-07-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Ming Yang , Ning Cong , Minghua Xuan , Can Zhang , Xiaochuan Chen , Can Wang , Han Yue , Jiao Zhao , Angran Zhang
IPC: G09G3/32
Abstract: Embodiments of the present disclosure disclose a drive circuit, a driving method thereof and a display device. The drive circuit includes: a current control circuit, configured to provide a drive signal to a device to be driven according to a signal of a data signal terminal; a first transistor, electrically connected between the current control circuit and the device to be driven; and a duration control circuit, electrically connected with a gate of the first transistor, and configured to provide a light-emitting duration modulating signal to the gate of the first transistor according to a combined action of signals of a scanning signal terminal, a light-emitting control signal terminal, a duration control signal terminal and a reference voltage signal terminal, to control a conduction duration of the first transistor.
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公开(公告)号：US20210134895A1
公开(公告)日：2021-05-06
申请号：US16825922
申请日：2020-03-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Can Wang , Xiaochuan Chen , Minghua Xuan , Can Zhang , Angran Zhang
Abstract: The present disclosure provides a light emitting device and a method for manufacturing the same, and a display device. The light emitting device includes a plurality of light emitting units including a red light emitting unit, a green light emitting unit, and a blue light emitting unit, each light emitting unit including a micro-cavity structure. The light emitting device includes an anode structure, a cathode and a functional layer therebetween. The functional layer includes a light emitting layer including a red light emitting layer at least partially located in the red light emitting unit, an orthographic projection of the red light emitting layer on the backplane not overlapping with that of the blue light emitting unit on the backplane; a green light emitting layer at least partially located in the green light emitting unit; and a blue light emitting layer at least partially located in the blue light emitting unit.
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公开(公告)号：US11515361B2
公开(公告)日：2022-11-29
申请号：US16825922
申请日：2020-03-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Can Wang , Xiaochuan Chen , Minghua Xuan , Can Zhang , Angran Zhang
Abstract: The present disclosure provides a light emitting device and a method for manufacturing the same, and a display device. The light emitting device includes a plurality of light emitting units including a red light emitting unit, a green light emitting unit, and a blue light emitting unit, each light emitting unit including a micro-cavity structure. The light emitting device includes an anode structure, a cathode and a functional layer therebetween. The functional layer includes a light emitting layer including a red light emitting layer at least partially located in the red light emitting unit, an orthographic projection of the red light emitting layer on the backplane not overlapping with that of the blue light emitting unit on the backplane; a green light emitting layer at least partially located in the green light emitting unit; and a blue light emitting layer at least partially located in the blue light emitting unit.
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公开(公告)号：US11417272B2
公开(公告)日：2022-08-16
申请号：US16763219
申请日：2019-11-01
Applicant: BOE Technology Group Co., Ltd.
Inventor： Ming Yang , Ning Cong , Han Yue , Can Zhang , Can Wang , Jiao Zhao , Angran Zhang , Minghua Xuan , Xiaochuan Chen
IPC: G09G3/3233 , G09G3/00 , G09G3/3291
Abstract: A pixel circuit and driving method are provided. The pixel circuit includes a light emitting device having a first terminal and a second terminal; a driving circuit, electrically connected to the first terminal of the light emitting device, for providing power to the light emitting device; a voltage comparator for generating a pulse width modulated signal having a duty cycle based on a data voltage and a reference voltage; an offset voltage detecting circuit, electrically connected to an output terminal of the voltage comparator, for detecting an input offset voltage of the voltage comparator; and a data voltage compensation circuit, electrically connected to the offset voltage detecting circuit, for compensating the data voltage according to the input offset voltage detected.
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公开(公告)号：US10797241B1
公开(公告)日：2020-10-06
申请号：US16814101
申请日：2020-03-10
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Angran Zhang , Can Zhang , Can Wang , Minghua Xuan , Han Yue , Ning Cong , Jiao Zhao , Ming Yang , Xiaochuan Chen
Abstract: The present disclosure relates to an array substrate and a method for manufacturing the same, a display panel, and a display equipment. The array substrate includes a piezoelectric substrate, a pixel defining layer disposed on the piezoelectric substrate and formed with an opening region, and interdigital electrodes disposed oppositely at two sides of the pixel defining layer on the piezoelectric substrate and fitted on the piezoelectric substrate to form an acoustic surface standing wave including an antinodal point and a nodal point. The position of the antinodal point corresponds to the position of the opening region while the position of the nodal point corresponds to the position of the pixel defining layer. In the array substrate provided by the present disclosure, when a light emitting unit is formed in the opening region by a gas jet printing equipment, a gas material can be prevented from diffusing into adjacent opening regions.
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