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公开(公告)号：US20200312246A1
公开(公告)日：2020-10-01
申请号：US16768638
申请日：2019-12-11
Inventor： Haixia XU , Zhongyuan WU , Zhidong YUAN , Song MENG
IPC: G09G3/3258 , G09G3/00 , G09G3/3291
Abstract: A method and a device for compensating a display device and a display apparatus are provided, each pixel unit includes a pixel driving circuit and a light-emitting element, the pixel driving circuit includes a driving transistor and sensing line, the method includes: acquiring a first mobility and a first threshold voltage of the driving transistor, the first mobility and the first threshold voltage are acquired when the display device is not displaying; acquiring a second mobility of the driving transistor according to the electrical signal on the sensing line, the second mobility is acquired when the display device is displaying; determining a second threshold voltage of the driving transistor according to the first threshold voltage, a difference between the second mobility and the first mobility, and a compensation factor; and calculating an external compensation value of a display data signal according to the second threshold voltage and the second mobility.
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公开(公告)号：US20200066208A1
公开(公告)日：2020-02-27
申请号：US16452981
申请日：2019-06-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Song MENG
IPC: G09G3/3258 , G09G3/3275
Abstract: The present disclosure provides a compensation method for pixel circuit, a pixel circuit, and a display device. The pixel circuit includes a data writing circuit, a driving circuit, a sensing circuit, and an energy storage circuit, the compensation method includes: in a charging stage, acquiring a voltage of the second node by the sensing circuit, adjusting a data voltage outputted by the data writing circuit to the first node based on the acquired voltage of the second node, and charging the energy storage circuit by using the adjusted data voltage; and in a compensation stage, compensating characteristic parameters of the driving circuit by the charged energy storage circuit.
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公开(公告)号：US20250095564A1
公开(公告)日：2025-03-20
申请号：US18288577
申请日：2022-11-25
Inventor： Xuehuan FENG , Song MENG
IPC: G09G3/3225
Abstract: Provided is a display device. The display device includes: a display panel and a control assembly; wherein the display panel includes a base substrate, a plurality of first color light-emitting units, and a sensing unit, wherein the sensing unit is electrically connected to the plurality of first color light-emitting units to acquire a plurality of sensing values; the control assembly is electrically connected to the sensing unit, and configured to acquire a plurality of rearranged sensing values by rearranging the plurality of sensing values; and the control assembly is further configured to adjust the plurality of first color light-emitting units in the display panel based on the plurality of rearranged sensing values.
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公开(公告)号：US20250095524A1
公开(公告)日：2025-03-20
申请号：US18557312
申请日：2022-10-27
IPC: G09G3/00 , G09G3/32 , G09G3/3266 , G09G3/3275
Abstract: A display module includes sub-pixels, data lines, a source driving circuit and a processor. Each sub-pixel includes light-emitting sub-units each including a pixel circuit and at least one light-emitting device. A data line is electrically connected to a sub-pixel. The source driving circuit is electrically connected to the data line. The source driving circuit is configured to output a first or second data signal to the sub-pixel through the data line. The processor is configured to: determine location information of a target sub-pixel; and control, according to the location information, the source driving circuit to output the second data signal to the target sub-pixel, so that a brightness of the target sub-pixel is substantially the same as that of a non-target sub-pixel.
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公开(公告)号：US20240221607A1
公开(公告)日：2024-07-04
申请号：US17922502
申请日：2021-09-08
Inventor： Huihui LI , Wenchao BAO , Song MENG , Jingbo XU
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/08 , G09G2320/0242 , G09G2320/0295 , G09G2320/0693 , G09G2330/10
Abstract: An image dis play method applied to a display apparatus includes: establishing a correspondence table between a threshold voltage of a sub-pixel and a compensation voltage, the correspondence table including at least one adjustment interval, an adjustment interval including a first and second threshold voltage endpoint values, the first threshold voltage endpoint value being less than the second threshold voltage endpoint value; acquiring a threshold voltage of each sub-pixel; determining an adjustment interval in which the acquired threshold voltage is located according to the corresponding table; acquiring a compensation voltage corresponding to the acquired threshold voltage according to the correspondence table and the determined adjustment interval; and determining, in a case where the display apparatus is to display a black image, a data voltage required by each sub-pixel according to the acquired threshold voltage and the acquired compensation voltage.
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Patent Agency Ranking
公开(公告)号：US20240169907A1
公开(公告)日：2024-05-23
申请号：US17779141
申请日：2021-07-21
Inventor： Xiaolong WEI , Song MENG , Jingbo XU , Pan LI , Wenchao BAO
IPC: G09G3/3233 , G09G3/20
CPC classification number: G09G3/3233 , G09G3/2096 , G09G2300/0842 , G09G2320/0233 , G09G2320/0257 , G09G2320/043
Abstract: A control device includes a memory and a processor. The memory is configured to store a time comparison table. The processor is configured to determine whether a displayed image is a still image. When the displayed image is determined to be a still image, the time comparison table is queried for a corresponding still image judgment duration according to an average pixel level and a type of the still image.
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公开(公告)号：US20210335245A1
公开(公告)日：2021-10-28
申请号：US17259702
申请日：2020-06-24
IPC: G09G3/3233 , G09G3/3275 , G09G3/32
Abstract: A method for controlling a charging time of a display panel includes: during t0+kΔt in a (k+1)-th blanking time, writing a data voltage to a gate of a driving transistor, and detecting a voltage Vk_(j,i) of a second electrode of the driving transistor; during a t0+(k+r)Δt in a (k+1+r)-th blanking time, writing the data voltage to the gate of the driving transistor, and detecting a voltage Vk+i_(j,i) of the second electrode of the driving transistor; determining whether ΔVj,i=Vk+1_ji−Vk_ji is less than or equal to a target voltage difference VT; if ΔVj,i≤VT, taking the T=t0+kΔt as an expected charging time of a sub-pixel; if ΔVj,i>VT, cyclically performing the charging step described above to obtain ΔVj,i=Vk+p+1_(j,i)−Vk+p_(j,i), and comparing ΔVj,i with the target voltage difference VT, until ΔVj,i≤VT, taking t0+(k+p+r−1)Δt as the expected charging time of the sub-pixel. p is taken from 1, and increases by 1 for each cycle.
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公开(公告)号：US20210065629A1
公开(公告)日：2021-03-04
申请号：US16937486
申请日：2020-07-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Fei YANG , Song MENG , Xiaolong WEI
IPC: G09G3/3258 , G09G3/3275 , G09G3/3266
Abstract: A pixel circuit, a parameter detection method, a display panel and a display device are provided. The pixel circuit includes a data writing-in circuit, a driving circuit, a reset control circuit, a detection control circuit, and a light emitting element. The detection control circuit is configured to control the connection or disconnection between the first electrode of the light emitting element and the sensing line under the control of a detection control signal provided by the detection control line. The reset control circuit is configured to control the connection or disconnection between the first electrode of the light emitting element and the second electrode of the light emitting element under the control of a reset control signal provided by the reset control line.
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19.发明申请公开(公告)号：US20200265760A1
公开(公告)日：2020-08-20
申请号：US16348315
申请日：2018-08-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chen SONG , Tangxiang WANG , Zhan GAO , Song MENG , Dongfang YANG
IPC: G09G3/00 , G09G3/3233
Abstract: The present disclosure discloses a sampling method, a sampling control method, a sampling device, a sampling control device, a sampling control system, and a display device. The present disclosure provides a sampling method for sampling pixel units disposed on a display substrate, the method including: the controller controlling a plurality of sampling modules to be simultaneously turned on, so that a plurality of sampling modules controlled by the controller are capable of receiving luminance information of the pixel units obtained through sampling of the sampling channel; the controller sequentially controlling a group of sampling channels to be simultaneously turned on, so that the group of sampling channels simultaneously sample the luminance information, and transmit the sampled luminance information to respective sampling modules connected to the group of sampling channels through the output terminals of the group of sampling channels.
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20.发明申请公开(公告)号：US20190147801A1
公开(公告)日：2019-05-16
申请号：US16108543
申请日：2018-08-22
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ming I CHU , Zhongyuan WU , Fei YANG , Song MENG , Danna SONG
IPC: G09G3/3258 , H01L27/32
Abstract: A compensation method for an electroluminescent display panel, a driving device, a display device, and a storage medium are provided. The compensation method includes: receiving a first display data signal; performing an optical compensation operation on the first display data signal to obtain a second display data signal; performing an electrical compensation operation on the second display data signal to obtain a third display data signal; and outputting the third display data signal for display.
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