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公开(公告)号：US20250078746A1
公开(公告)日：2025-03-06
申请号：US18287305
申请日：2023-01-06
Inventor： Yao ZHANG , Wenchao BAO , Song MENG , Xiaolong WEI , Miao LIU , Cheng XU
IPC: G09G3/3233
Abstract: Provided is a method for sensing pixel internal data in a display device. The method includes: sensing pixel internal data for each line of pixel units to determine column sequence numbers of suspected abnormal pixel units in the line of pixel units; determining, based on a number of the suspected abnormal pixel units of each column sequence number in the at least three lines of pixel units, whether a sensing signal line corresponding to the column sequence number is an abnormal sensing signal line; and in a case that there is at least one abnormal sensing signal line, replacing pixel internal data of a column of pixel units corresponding to each abnormal sensing signal line with pixel internal data of at least one column of pixel units adjacent to the abnormal sensing signal line each time the pixel internal data of all pixel units is sensed.
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2.发明申请公开(公告)号：US20210335273A1
公开(公告)日：2021-10-28
申请号：US16474041
申请日：2018-12-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Song MENG
IPC: G09G3/3275
Abstract: A method for adjusting display brightness of a display panel including: partitioning a display picture into N display areas; determining, for an i-th display area in a current frame, a brightness adjustment parameter for the i-th display area based on display data of the first to (i−1)-th display areas in the current frame; and adjusting display brightness of the i-th display area in the current frame based on the brightness adjustment parameter, wherein N and i are positive integers greater than or equal to 2, and i is less than or equal to N.
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公开(公告)号：US20200211458A1
公开(公告)日：2020-07-02
申请号：US16502755
申请日：2019-07-03
Inventor： Min HE , Song MENG , Fei YANG , Chun CAO , Xiaolong WEI
IPC: G09G3/3233 , G09G3/3266 , G09G3/3275
Abstract: The present disclosure relates to a pixel circuit, a compensation method and a display device. The pixel circuit includes a first switching circuit for supplying a data voltage to a first node in response to a first scan signal being valid, a second switching circuit for conductively connecting a sensing signal line with a second node in response to a second scan signal being valid, a reset circuit for supplying a reset voltage to the sensing signal line in response to a reset control signal being valid, a light-emitting element, and a driving transistor for enabling, when the light-emitting element emits light, the sensing signal line to be charged in response to the second scan signal being valid and the reset control signal being invalid, the voltage of the sensing signal line is sensed after it was charged so as to compensate the data voltage.
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4.发明申请公开(公告)号：US20170193909A1
公开(公告)日：2017-07-06
申请号：US15307611
申请日：2016-01-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Danna SONG , Zhongyuan WU , Szu Heng TSENG , Song MENG
IPC: G09G3/3258 , G09G3/20
CPC classification number: G09G3/3258 , G09G3/2074 , G09G3/3233 , G09G2310/027 , G09G2310/08 , G09G2320/0233 , G09G2320/0295 , G09G2320/043 , G09G2320/0626 , G09G2330/12 , G09G2360/147
Abstract: An Active-Matrix Organic Light Emitting Diode (AMOLED) display apparatus and a brightness compensation method thereof are provided. At an initial compensation stage, a display screen can be subjected to brightness calibration by an image sensor so as to acquire a data voltage compensation value of each sub-pixel when a brightness value of a display panel equals a preset value, a first data voltage is output to a corresponding pixel circuit according to the data voltage compensation value of each sub-pixel, a sensed voltage of each sub-pixel at this stage is used as an initial reference voltage of each sub-pixel when the brightness value of the display panel equals the preset value; and at a subsequent compensation stage, by regulating a data voltage of each sub-pixel, the sensed voltage of each sub-pixel is made to be equal to the corresponding initial reference voltage when the brightness value of the display panel equals the preset value, so as to achieve uniform compensation on brightness of each sub-pixel at the subsequent compensation stage. Thus, not only are uniformity and accuracy of initial brightness compensation improved, but also pixel aging is accurately compensated and uniformity and accuracy of subsequent compensation are improved.
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公开(公告)号：US20240363050A1
公开(公告)日：2024-10-31
申请号：US18029107
申请日：2022-06-29
IPC: G09G3/20 , G09G3/3233
CPC classification number: G09G3/2092 , G09G3/3233 , G09G2300/0842 , G09G2320/0257 , G09G2320/045
Abstract: Provided are a timing controller, sensing compensation method thereof, and display panel. The timing controller includes a sensing module (501), a built-in picture generation module (502), a multi-channel data selection module (503) and a processing output module (504). The sensing module is configured to sense whether a sensing compensation instruction is received, when received, notify built-in picture generation module and multi-channel data selection module; built-in picture generation module is configured to receive a notification and generate a first video signal; multi-channel data selection module is configured to receive a notification, switch from a display mode to a built-in picture mode, select first video signal as a video source, output first video signal to processing output module; processing output module is configured to process first video signal and output processed first video signal to the display panel so that the display panel performs sensing compensation based on the first video signal.
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Patent Agency Ranking
公开(公告)号：US20240321198A1
公开(公告)日：2024-09-26
申请号：US18034374
申请日：2022-06-29
Inventor： Min HE , Xiaolong WEI , Song MENG , Qiang FEI , Jingbo XU , Cheng XU , Miao LIU , Pengfei YIN
IPC: G09G3/3233 , G09G3/20
CPC classification number: G09G3/3233 , G09G3/2096 , G09G2300/0819 , G09G2300/0842 , G09G2320/103
Abstract: Disclosed are a display panel and a display method thereof, and a display apparatus. The display panel includes multiple pixel units, a pixel unit includes multiple sub-pixels, a sub-pixel includes a pixel drive circuit, a sense compensation circuit, and an element to be driven, and the display panel further includes a detection unit and a compensator; the pixel drive circuit is configured to drive the element to be driven in active time; the sense compensation circuit is configured to sense electrical characteristics of the element to be driven in blank time; the detection unit is configured to detect whether a currently displayed picture is a still picture, send a first notification to the compensator when the currently displayed picture is a still picture, and send a second notification to the compensator when the currently displayed picture is a non-still picture.
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公开(公告)号：US20240242667A1
公开(公告)日：2024-07-18
申请号：US18004345
申请日：2021-12-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Mingi CHU , Ying HAN , Song MENG , Fei YANG , Lirong WANG , Zhiqiang DONG , Tianji LI , Jingbo XU , Pan LI
IPC: G09G3/3225 , G09G3/20
CPC classification number: G09G3/3225 , G09G3/2074 , G09G2320/064 , G09G2360/14
Abstract: A display device and a driving method thereof. The display device includes a display substrate and at least one optical sensing unit; the display substrate includes a light-emitting region and a plurality of pixel units located in the light-emitting region; wherein the light-emitting region comprises a single-sided light-emitting region and at least one double-sided light-emitting region, and each of the pixel units in the plurality of pixel units comprises a plurality of sub-pixels; and the at least one optical sensing unit corresponds to the at least one double-sided light-emitting region from a non-display side of the display substrate, and configured to sense light emitted by the sub-pixels during operation in the at least one double-sided light-emitting region, and to provide sensing brightness information of the at least one double-sided light-emitting region to perform brightness compensation on the light-emitting region.
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公开(公告)号：US20230274695A1
公开(公告)日：2023-08-31
申请号：US18313457
申请日：2023-05-08
Inventor： Song MENG , Xuehuan Feng
IPC: G09G3/3225
CPC classification number: G09G3/3225 , G09G2300/0819 , G09G2310/08
Abstract: The present disclosure relates to the field of display technology, and describes a pixel driving circuit detection method, a display panel, a driving method thereof, and a display device. The detection method includes inputting a reference voltage to the data line during at least part of the initial phase; turning on the first and second switch sub-circuits during the charging phase, to input the detection voltage to the data line, while inputting the reset voltage to the sensing line; turning on the second switch sub-circuit during the charging phase, to input the driving current by the driving transistor to the sensing line under the effect of the detection voltage; turning off the first and second switch sub-circuits during the detection phase, to detect the voltage on the sensing line; and obtaining the mobility of the driving transistor according to the voltage on the sensing line detected in the detection phase.
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公开(公告)号：US20210193044A1
公开(公告)日：2021-06-24
申请号：US17094193
申请日：2020-11-10
Inventor： Song MENG , Yongqian LI
IPC: G09G3/3258 , G09G3/3291 , G09G3/3266
Abstract: There is provided a driving method for a pixel circuit including a driving transistor, a data writing circuit, a sensing circuit, and a storage capacitor. The driving method includes: during a sensing write stage, writing a test voltage equal to a sum of a first reference voltage and a threshold voltage of the driving transistor, by the data writing circuit, to the control electrode of the driving transistor, and writing a second reference voltage, by the sensing circuit, to a second electrode of the driving transistor; during a sensing sampling stage, continuing to write the test voltage to the control electrode of the driving transistor by the data writing circuit, and stopping writing a voltage to the second electrode of the driving transistor by the sensing circuit. The driving method further includes a sensing reset stage and a sensing charging stage.
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公开(公告)号：US20210097933A1
公开(公告)日：2021-04-01
申请号：US16916147
申请日：2020-06-30
Inventor： Zhidong YUAN , Yongqian LI , Song MENG , Can YUAN
IPC: G09G3/3233 , G09G3/3266 , G09G3/3291
Abstract: Provided are a pixel structure, a display panel and a control method thereof. The pixel structure includes four sub-pixel units, wherein the i-th sub-pixel unit includes: an i-th element to be driven and an i-th drive circuit, 1≤i≤4, and the i-th drive circuit is respectively connected with an M-th data line and an N-th scanning line, and is configured to drive the i-th element to be driven according to a data signal of the M-th data line under control of the N-th scanning line, M = { 1 , 1 ≤ i ≤ 2 2 , 3 ≤ i ≤ 4 , N = { 1 , 2 ≤ i ≤ 3 2 , i is 1 or 4 .
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