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公开(公告)号：US11348518B2
公开(公告)日：2022-05-31
申请号：US16616195
申请日：2019-05-20
发明人： Wenchao Bao , Min He , Chun Cao
IPC分类号： G09G3/3233
摘要： A method for driving a display panel and a display device are provided. The driving method includes supplying, during a data writing stage of each row of pixel circuits, a driving voltage VA[i] to the data line corresponding to each of the pixel circuits in a row, and supplying a compensation voltage VS to the second node of each of the pixel circuits in the row, and VA[i]=Vdata[i]+Vth[i]+VS, where Vdata[i] is an original data voltage of an ith pixel circuit of the pixel circuits, i is a positive integer, Vth[i] is a threshold voltage of the driving transistor of the ith pixel circuit, and a range from which a value of the compensation voltage VS is selected is [−Vth_min, 0), and Vth_min is a minimum value among all of the threshold voltages of the driving transistors of the pixel circuits of the display panel.
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公开(公告)号：US10957259B1
公开(公告)日：2021-03-23
申请号：US16470662
申请日：2019-01-17
发明人： Xiaolong Wei , Wenchao Bao , Min He
IPC分类号： G09G3/3291
摘要： The embodiment of the present application provides a data processing method, wherein the data processing method is applied to a display panel comprising pixels arranged in an M×N array, the method comprising: obtaining voltage data corresponding to pixels of n adjacent columns in the ith row determining, based on stored voltage data corresponding to pixels of n adjacent columns in (m−1) rows previous to the ith row, whether voltage data corresponding to a pixel in the ith row and jth column is abnormal; performing a filtering process on the voltage data corresponding to the pixel in the ith row and jth column if the voltage data corresponding to the pixel in the ith row and jth column is abnormal, such that a difference between a threshold voltage after the filtering process and an actual threshold voltage is less than or equal to a first threshold difference.
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公开(公告)号：US10950158B2
公开(公告)日：2021-03-16
申请号：US16557082
申请日：2019-08-30
发明人： Wenchao Bao , Qinghua Zou
IPC分类号： H01L27/32 , G09G3/20 , G09G3/3208
摘要： The present disclosure provides a display apparatus, including: a plurality of pixels, at least one of which includes a red sub-pixel, a green sub-pixel, a first blue sub-pixel and a second blue sub-pixel. Blue light emitted by the first blue sub-pixel has a wave band of 400˜540 nm and blue light emitted by the second blue sub-pixel has a wave band of 420˜580 nm. The red sub-pixel and the green sub-pixel are combined with the first blue sub-pixel or the second blue sub-pixel to perform a RGB three-primary-color display. The present disclosure further provides a display method for the display apparatus.
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公开(公告)号：US20200160784A1
公开(公告)日：2020-05-21
申请号：US16529352
申请日：2019-08-01
发明人： Haixia Xu , Zhidong Yuan , Wenchao Bao , Can Yuan , Song Meng
IPC分类号： G09G3/3233
摘要： The present disclosure proposes a display control method and device, and a display panel. The display control method includes: acquiring a temperature compensation value of a row of pixel units in a display panel on which temperature compensation is currently performed; acquiring, according to the temperature compensation value, a brightness ratio corresponding to the temperature compensation value; and compensating for brightness of a row of pixel units in the display panel on which temperature compensation is not performed according to the brightness ratio.
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公开(公告)号：US10593279B2
公开(公告)日：2020-03-17
申请号：US15821149
申请日：2017-11-22
发明人： Meng Li , Yongqian Li , Pan Xu , Zhenfei Cai , Zhidong Yuan , Can Yuan , Xuehuan Feng , Wenchao Bao
摘要： A display device, a gate driving circuit and a gate driving unit are provided. The gate driving unit includes: a signal maintenance circuit configured to, in the case that a first clock signal at a high level is received, output a high level in accordance with an inputted trigger signal at a high level; a first-level output circuit configured to, in the case that a second clock signal at a high level is received, output a first-level driving signal at a high level in accordance with the high level from an output end of the signal maintenance circuit; and a second-level output circuit configured to, in the case that a third clock signal at a high level is received, output a second-level driving signal at a high level in accordance with the high level from an output end of the first-level output circuit.
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公开(公告)号：US11749201B2
公开(公告)日：2023-09-05
申请号：US17416561
申请日：2020-10-28
发明人： Taejin Kim , Wenchao Bao
IPC分类号： G09G3/3258 , G09G3/3233
CPC分类号： G09G3/3258 , G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/029 , G09G2320/0233 , G09G2320/0295 , G09G2320/043 , G09G2320/045
摘要： The present disclosure provides a display device and a circuit and method for acquiring voltages, and belongs to the field of display technologies. The display device includes: a display panel including a plurality of sub-pixels and a plurality of sensing lines, each of the sub-pixels being connected to one of the sensing lines; a reference voltage providing circuit configured to provide a reference voltage; a sampling circuit electrically connected to the sensing lines and the reference voltage providing circuit, respectively, and configured to acquire a voltage on each sensing line to obtain a first sampling value, and acquire the reference voltage provided by the reference voltage providing circuit to obtain a second sampling value; and a processing circuit electrically connected to the sampling circuit, and configured to correct the first sampling value based on the second sampling value and the reference voltage.
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7.发明授权公开(公告)号：US11270642B2
公开(公告)日：2022-03-08
申请号：US16674531
申请日：2019-11-05
发明人： Meng Li , Yongqian Li , Song Meng , Zhidong Yuan , Can Yuan , Haixia Xu , Wenchao Bao
IPC分类号： G06F3/038 , G09G3/3258
摘要： A pixel unit includes a first sub-pixel circuit and a second sub-pixel circuit. The first sub-pixel circuit includes a first sub-pixel driving circuit and a first light-emitting element, and the second sub-pixel circuit includes a second sub-pixel driving circuit and a second light-emitting element. The first sub-pixel driving circuit and the second sub-pixel driving circuit are connected to a first data line, and the first sub-pixel driving circuit is connected to a first gate line, the second sub-pixel driving circuit is connected to the second gate line. The first sub-pixel driving circuit is configured to drive the first light-emitting element by a data voltage on the first data line under the control of the first gate line. The second sub-pixel driving circuit is configured to drive the second light-emitting element by the data voltage on the first data line under the control of the second gate line.
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公开(公告)号：US11238800B2
公开(公告)日：2022-02-01
申请号：US16957043
申请日：2020-01-22
发明人： Min He , Wenchao Bao , Chun Cao , Wei Chen
IPC分类号： G09G3/3258
摘要： The present disclosure provides a set-voltage generation unit, a set-voltage generation method and a display device. The set-voltage generation unit includes a voltage generation circuit. The set-voltage generation unit is configured to generate a set voltage according to a gamma main voltage such that a ratio between a variation of the set voltage and a variation of the gamma main voltage is a voltage coefficient K, and K is a positive number less than or equal to 1.
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公开(公告)号：US11984066B2
公开(公告)日：2024-05-14
申请号：US16490395
申请日：2019-02-15
发明人： Wenchao Bao
IPC分类号： G09G3/3208
CPC分类号： G09G3/3208 , G09G2320/0242 , G09G2320/048 , G09G2320/0626 , G09G2360/147
摘要： A processing method and a processing device for pixel data, a display device, a display method, and a storage medium are provided. The processing method includes: determining a target pixel point in pixel points of a display frame image to be revised, a pixel data of each pixel point including S initial pixel data of different primary colors and a white initial pixel data; converting a white initial pixel data in a pixel data of the target pixel point into S equivalent pixel data of the different primary colors; obtaining S target pixel data of the different primary colors and a white target pixel data of the target pixel point according to the S equivalent pixel data and according to S initial pixel data of the different primary colors in the pixel data of the target pixel point, the white target pixel data corresponding to a 0 gray scale.
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公开(公告)号：US11645978B2
公开(公告)日：2023-05-09
申请号：US17417501
申请日：2020-12-09
发明人： Wenchao Bao , Xiaolong Wei
IPC分类号： G09G3/3258 , G09G3/00 , G09G3/3266
CPC分类号： G09G3/3258 , G09G3/006 , G09G3/3266 , G09G2300/043
摘要： The present disclosure provides method and device for processing compensation data to be applied to a pixel circuit, and a display panel. The method includes: receiving M compensation data; determining a first threshold range according to (i−N)-th to (i−1)-th standard data, wherein midpoint and length of the first threshold range both depend on the (i−N)-th to (i−1)-th standard data; judging whether an i-th compensation data is in the first threshold range or not; in response to the i-th compensation data being in the first threshold range, determining the i-th compensation data as qualified and using it as an i-th standard data; and in response to the i-th compensation data not being in the first threshold range, determining the i-th compensation data as unqualified, replacing it with an average value of the (i−N)-th to (i−1)-th standard data, and using the replaced i-th compensation data as the i-th standard data.
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