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公开(公告)号：US20200074934A1
公开(公告)日：2020-03-05
申请号：US16387954
申请日：2019-04-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Fei YANG , Xiaolong WEI , Lirong WANG , Song MENG , Yi CHEN
IPC: G09G3/3275
Abstract: The present disclosure provides a source driver, a display device, and a signal transmission method, relating to the field of display technology. The source driver is configured to receive a first data signal from a timing controller, wherein the first data signal carries a control command; and transmit, under control of the control command, a reference clock signal and a sensing data signal to the timing controller simultaneously, wherein the sensing data signal is received by the timing controller under control of the reference clock signal.
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32.发明申请公开(公告)号：US20200005711A1
公开(公告)日：2020-01-02
申请号：US16555538
申请日：2019-08-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233
Abstract: A driving method for preventing image sticking of a display panel (805) upon shutdown, and a display device (800). The method includes: receiving a shutdown signal (S01, S16); and adjusting driving signals of a sub-pixel circuit (708, 810) of the display panel (805), so as to reduce the voltage difference between a gate electrode and a source electrode of a driving transistor (T1) of the sub-pixel circuit, and hence allowing the display panel (805) to enter an image sticking prevention mode (S02, S17). The method can prevent image sticking of the display panel (805) at the time of shutdown and hence improve the display quality.
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33.发明申请公开(公告)号：US20190385568A1
公开(公告)日：2019-12-19
申请号：US15771937
申请日：2017-09-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Danna SONG , Song MENG , Mingi CHU
IPC: G09G5/10 , G09G3/3258 , G09G3/3291
Abstract: The present disclosure discloses an electroluminescent display screen and brightness uniformity compensation method and system thereof, wherein the method comprises: performing test modeling based on a correspondence between an aging rule of an electroluminescent diode in the display screen and an aging rule of a thin film transistor (TFT) in the display screen to acquire a brightness uniformity compensation model; acquiring a first compensation parameter and a second compensation parameter required for compensating the TFT, and acquiring a current brightness ratio of the electroluminescent diode through invoking the brightness uniformity compensation model based on the compensation parameters; performing brightness uniformity compensation on the display screen based on the acquired current brightness ratio of the electroluminescent diode.
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公开(公告)号：US20180315392A1
公开(公告)日：2018-11-01
申请号：US15565907
申请日：2017-05-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
CPC classification number: G09G3/38 , G02F1/163 , G02F2001/1635 , G09G2300/0439 , G09G2300/0809 , G09G2300/0866 , G09G2310/0262 , G09G2310/0275
Abstract: A pixel circuit is provided which includes a data writing module, a drive module, a control module and an electrochromic device. The data writing module provides a data signal to the control terminal of the drive module under the control of a first control signal. The drive module drives the electrochromic device for colour development or colour fading according to a power supply voltage signal under the control of the data signal. The control module controls the conduction between the drive module and the electrochromic device on the basis of a second control signal, and the control module controls the conduction so that the conduction is realized later than the change in the power supply voltage signal. The pixel circuit effectively removes interference of the power supply voltage signal, avoids display fluctuations caused by the change in the power supply voltage signal, and further improves the display effect.
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公开(公告)号：US20180293016A1
公开(公告)日：2018-10-11
申请号：US15567733
申请日：2017-05-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Song MENG , Fei YANG , Danna SONG
IPC: G06F3/06 , G09G3/3225
Abstract: A method and apparatus for updating data in a memory for electrical compensation, the method comprises: when a master chip receives a power-off signal, writing a serial number of a block being updated or a predetermined value into a nonvolatile memory. In the apparatus, only a nonvolatile memory is required to be provided external to a master chip to store the serial number of the block (the sequence of the block) being updated currently during power-off. Upon a next power-on, it is determined that which rows have their data lost during the previous power-off according to the serial number of the block, and then data of adjacent rows is used to replace the data of the rows which have their data lost during the previous power-off; therefore, the operation is simple and the efficiency is high, so that the time for updating the data is short, without affecting the memory's lifespan
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Patent Agency Ranking
36.发明申请公开(公告)号：US20180197472A1
公开(公告)日：2018-07-12
申请号：US15535585
申请日：2016-12-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233
Abstract: A driving method for preventing image sticking of a display panel upon shutdown, and a display device. The method includes: receiving a shutdown signal; and adjusting driving signals of a sub-pixel circuit of the display panel, so as to reduce the voltage difference between a gate electrode and a source electrode of a driving transistor of the sub-pixel circuit, and hence allowing the display panel to enter an image sticking prevention mode. The method can prevent image sticking of the display panel at the time of shutdown and hence improve the display quality.
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37.发明申请公开(公告)号：US20250148955A1
公开(公告)日：2025-05-08
申请号：US18150261
申请日：2021-12-21
Inventor： Min HE , Jingbo XU , Song MENG , Pengfei YIN
IPC: G09G3/20
Abstract: A brightness determination method and device, a display panel, an electronic equipment, and a storage medium are provided. The method includes: determining, based on an image to be displayed, first display brightness values corresponding to the pixels; determining, based on the first display brightness values, a reference average picture level; and determining, based on the reference average picture level and information about a relationship between an average picture level and a maximum display brightness value, a target maximum display brightness value during display of the image to be displayed. The information includes information on variation of the maximum display brightness value with the average picture level in the at least two segment intervals; in different segment intervals, the maximum display brightness value varies at different rates with the average picture level; in at least one segment interval, the maximum display brightness value decreases as the average picture level increases.
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公开(公告)号：US20250095523A1
公开(公告)日：2025-03-20
申请号：US18289120
申请日：2023-01-06
Inventor： Song MENG , Wenchao BAO , Cheng XU , Miao LIU
IPC: G09G3/00 , G09G3/20 , G09G3/3233
Abstract: Embodiments of the present disclosure provide a compensating method and apparatus for a display panel, and a display device. The method includes: acquiring sensing voltages of a target sub-pixel and a sub-pixel set, where the sub-pixel set includes a plurality of first sub-pixels, and the first sub-pixels are disposed within a set range around the target sub-pixel and have the same color as the target sub-pixel; determining, based on the sensing voltages of the target sub-pixel and the sub-pixel set, whether the target sub-pixel belongs to a defective pixel; replacing the sensing voltage of the target sub-pixel by a sensing voltage of a normal pixel in the sub-pixel set if the target sub-pixel belongs to the defective pixel; and electrically compensating the target sub-pixel based on the replaced sensing voltage.
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公开(公告)号：US20240395205A1
公开(公告)日：2024-11-28
申请号：US18693528
申请日：2023-08-02
Inventor： Jian MAO , Song MENG , Xiaolong WEI , Miao LIU , Cheng XU
IPC: G09G3/3233 , G09G3/00
Abstract: The display panel includes a plurality of pixel units and a sense compensation circuit; and a pixel unit includes a plurality of sub-pixels; a sub-pixel includes a pixel drive circuit and an element to be driven; the display panel further includes: a detection unit and a compensator; the sense compensation circuit is configured to sense the electrical characteristics of said element at a non-active time; the detection unit is configured to detect whether dynamic and static attributes of a picture displayed in a previous preset time period are changed, and send a first notification to the compensator when the dynamic and static attributes are changed; the compensator is configured to receive the first notification and not, according to the sense result of the sense compensation circuit in the previous preset time period, compensate for a picture displayed in a next preset time period.
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公开(公告)号：US20240203361A1
公开(公告)日：2024-06-20
申请号：US17781776
申请日：2021-05-28
Inventor： Song MENG , Jingbo XU , Jianbo XIAN
IPC: G09G3/3275 , G09G3/3233
CPC classification number: G09G3/3275 , G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/0233
Abstract: An organic light-emitting diode display panel and a sensing method and a driving method therefor are provided. The organic light-emitting diode display panel includes a plurality of pixel units arranged in an array, each pixel unit includes a plurality of sub-pixels, and at least two sub-pixels are connected to a same sensing signal line. The sensing method includes: sequentially applying sensing data signals to the sub-pixels in the organic light-emitting diode display panel, and sequentially outputting sensing signals through sensing signal lines, to sense the sub-pixels, so as to compensate the sub-pixels. Among the sub-pixels connected to the same sensing signal line, sub-pixels, other than a sub-pixel which is currently sensed, are applied with a zero-gray-scale data signal.
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