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公开(公告)号：US10810958B2
公开(公告)日：2020-10-20
申请号：US16336989
申请日：2018-08-31
发明人： Lixia Shen , Zhiguang Zhang , Chang Zhang , Yong Yu , Tae Hyun Kim
IPC分类号： G09G3/36 , G09G3/3225
摘要： Embodiments of the present disclosure provide a display panel and a drive method thereof, and a display device. The display panel includes a plurality of sets of pixel columns and a plurality of drive circuits. Each of the sets of pixel columns includes a plurality of subpixel columns. The plurality of drive circuits correspond to the plurality of sets of pixel columns respectively. Each of the drive circuits is further configured to send, to an adjacent drive circuit, a source data signal for the subpixel column in the set of pixel columns of the drive circuit, and/or receive, from the adjacent drive circuit, a source data signal for the subpixel column in the set of pixel columns of the adjacent drive circuit and generate a data signal for driving the subpixel column in the set of pixel columns of the drive circuit, based on the received source data signal.
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公开(公告)号：US11335253B2
公开(公告)日：2022-05-17
申请号：US16480448
申请日：2018-12-20
发明人： Lixia Shen , Chang Zhang , Zhiguang Zhang
IPC分类号： G09G3/34 , G09G3/3208 , G09G3/20
摘要： An optical compensation method for a display panel and an optical compensation device are provided. The optical compensation method for the display panel includes selecting a pixel block to be compensated in an edge region; and acquiring a pixel compensation parameter of at least one pixel block in a main body region as a pixel compensation parameter of the pixel block to be compensated.
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公开(公告)号：US10553160B2
公开(公告)日：2020-02-04
申请号：US15781663
申请日：2017-11-23
发明人： Lixia Shen , Zhiguang Zhang , Chang Zhang , Yong Yu , Tae Hyun Kim
IPC分类号： G09G3/3258 , G09G3/3233
摘要： Embodiments of the present disclosure provide an OLED display panel and a driving method thereof. The OLED display panel includes a plurality of power lines, each power line connecting to a plurality of pixels, and one end of each power line connecting to a power source. The method includes acquiring a current value of the power line and comparing it to a preset threshold, when a current value of the power line is less than or equal to the threshold, providing an original data voltage to the pixels connected to the power line, when a current value of a power line is greater than the threshold, providing a compensating data voltage to the pixel connected to the power line. The compensating data voltage is equal to the difference between the original data voltage and the compensation voltage.
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公开(公告)号：US12004395B2
公开(公告)日：2024-06-04
申请号：US17555218
申请日：2021-12-17
发明人： Huatao Li , Zhiguang Zhang , Lei Feng , Jianhang Fu
IPC分类号： H10K59/131 , H10K59/35
CPC分类号： H10K59/131 , H10K59/353
摘要： A display substrate includes a plurality of pixel units arranged to form a plurality of pixel columns extending along a first direction, the display substrate further includes a plurality of groups of power source signal lines and pixel driving circuits located on the substrate, each group of power source signal lines includes a plurality of secondary signal lines, the pixel driving circuits of the pixel units in each pixel column are connected to different secondary signal lines in a same group of power source signal lines, each secondary signal line extends along the first direction from a starting end of the power source signal lines, extension lengths of the secondary signal lines in the same group of power source signal lines are different, and resistance values per unit length of different secondary signal lines along the first direction decrease as total lengths of the secondary signal lines increase.
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公开(公告)号：US10777168B2
公开(公告)日：2020-09-15
申请号：US16536505
申请日：2019-08-09
发明人： Guangguang Han , Zhiguang Zhang , Dehua Zhang
摘要： The disclosure discloses a display panel, a display device, and a method for adjusting a display image, the method includes: receiving a display mode switching instruction; obtaining a first brightness value of a first pixel in a display area in the first mode, and determining a second brightness value of the first pixel in a second mode to be switched to, wherein the display area includes a fingerprint recognition area, and an image display area surrounding the fingerprint recognition area, and the first pixel is in the image display area; determining a brightness compensation coefficient of the image display area in the second mode according to the first brightness value and the second brightness value; and switching from the first mode to the second mode, and displaying an image in the second mode after compensating for brightness in the image display area using the brightness compensation coefficient.
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公开(公告)号：US10665171B2
公开(公告)日：2020-05-26
申请号：US16334969
申请日：2018-04-11
发明人： Zhiguang Zhang , Chang Zhang , Kwanggyun Jang , Lixia Shen
IPC分类号： G09G3/3258 , G09G3/00
摘要： A method and a device for compensating for image crosstalk and a display apparatus are provided. The method includes: obtaining (S101) a data-voltage variation value between a data voltage applied to a pixel unit at a current scanning time instant and a data voltage applied to the pixel unit at a previous scanning time instant; determining a power-voltage variation value based on the data-voltage variation value (S102); setting a sum of the power-voltage variation value and an original data voltage to be applied to the pixel unit at a next time instant as a compensated data voltage of the pixel unit (S103); and setting the compensated data voltage of the pixel unit as an actual data voltage to be applied to the pixel unit at the next time instant (S104).
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公开(公告)号：US10460655B2
公开(公告)日：2019-10-29
申请号：US15547236
申请日：2017-02-28
发明人： Chang Zhang , Kwanggyun Jang , Jing Liu , Zhiguang Zhang , Hualing Yang
IPC分类号： G09G3/3225 , H04N9/69 , H04N1/60 , H04N5/202
摘要： The present disclosure provides a gamma tuning method and a gamma tuning device. The gamma tuning method includes steps of: comparing grayscale binding points of a to-be-debugged module with a standard gamma curve; determining a to-be-tuned grayscale binding point from the grayscale binding points of the to-be-debugged module in accordance with a comparison result between the grayscale binding points of the to-be-debugged module and the standard gamma curve; and tuning a grayscale brightness value of the to-be-tuned grayscale binding point in accordance with a target brightness value of the grayscale binding point on the standard gamma curve.
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公开(公告)号：US20170278448A1
公开(公告)日：2017-09-28
申请号：US15228025
申请日：2016-08-04
发明人： Zhiguang Zhang , KwangGyun Jang , Chang Zhang , Hualing Yang , Jing Liu
IPC分类号： G09G3/20 , G09G3/3225
CPC分类号： G09G3/2074 , G09G3/2003 , G09G3/3225 , G09G2320/0276 , G09G2320/0626 , G09G2320/0673
摘要： Embodiments of the present disclosure provide gamma correction method and device for a display module. The gamma correction method includes: determining, for each sub-pixel of a display module to be corrected, the highest data voltage and the lowest data voltage after gamma correction of the highest gray scale and the lowest gray scale of the display module; determining at least one set of alternative gamma register values that are capable of performing gamma correction of the display module; determining at least one set of gamma register values to be corrected for respective gray scales before the gamma correction of the display module; and performing gamma correction of the display module by adjusting the gamma register value corresponding to the gray scale to be corrected which needs to perform gamma correction.
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公开(公告)号：US10269286B2
公开(公告)日：2019-04-23
申请号：US15228025
申请日：2016-08-04
发明人： Zhiguang Zhang , KwangGyun Jang , Chang Zhang , Hualing Yang , Jing Liu
IPC分类号： G09G3/20 , G09G3/3225
摘要： Embodiments of the present disclosure provide gamma correction method and device for a display module. The gamma correction method includes: determining, for each sub-pixel of a display module to be corrected, the highest data voltage and the lowest data voltage after gamma correction of the highest gray scale and the lowest gray scale of the display module; determining at least one set of alternative gamma register values that are capable of performing gamma correction of the display module; determining at least one set of gamma register values to be corrected for respective gray scales before the gamma correction of the display module; and performing gamma correction of the display module by adjusting the gamma register value corresponding to the gray scale to be corrected which needs to perform gamma correction.
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