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公开(公告)号:US11380255B2
公开(公告)日:2022-07-05
申请号:US16474398
申请日:2018-12-07
发明人: Chang Zhang , Tairong Kim , Shanfu Jiang
IPC分类号: G09G3/3233
摘要: An optical compensation method for a display panel, an optical compensation device for a display panel, a display method for a display panel, a display device, and a storage medium are disclosed. The optical compensation method for a display panel includes: acquiring a pre-stored compensation parameter of the display panel; acquiring a current brightness level of the display panel; adjusting the pre-stored compensation parameter based on the current brightness level to obtain an adjusted compensation parameter; and compensating a display data signal of the display panel based on the adjusted compensation parameter.
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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:US11217146B2
公开(公告)日:2022-01-04
申请号:US16611874
申请日:2019-02-22
发明人: Chang Zhang , Tairong Kim , Shanfu Jiang
IPC分类号: G09G3/20 , G09G3/3258 , G09G3/3208
摘要: A gray-level compensation method and apparatus, a display device and a computer storage medium are provided, which belong to the field of display technology. The method includes: acquiring an initial gray-level value of a target pixel; determining an actual luminance offset of the target pixel based on the initial gray-level value, where different initial gray-level values within a specified threshold range correspond to different actual luminance offsets; and performing a gray-level compensation on the target pixel based on the actual luminance offset. The actual luminance offset is determined based on the initial gray-level value of the target pixel, and since the different initial gray-level values within the specified threshold range correspond to the different actual luminance offsets, flexibility of gray-level compensation performed on the pixel is improved.
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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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公开(公告)号:US12048096B2
公开(公告)日:2024-07-23
申请号:US17405257
申请日:2021-08-18
发明人: Hao Sun , Yong Yu , Chang Zhang , Ge Sun
CPC分类号: H05K1/118 , H05K1/028 , H10K59/12 , H10K77/111
摘要: Embodiments of the application provide a printed circuit board, a display module, a display device and a method of bonding the printed circuit board to a display screen. The printed circuit board includes a plurality of sub-circuit boards and a flexible connector between adjacent sub-circuit boards of the plurality of sub-circuit boards. The flexible connector is configured to connect the adjacent sub-circuit boards of the plurality of sub-circuit boards with each other. For the printed circuit board provided in the embodiments of the application, each sub-circuit board of the printed circuit board can be bonded independently, thereby avoiding pitch accumulation in the bonding region and thus controlling the total pitch within a satisfactory range.
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公开(公告)号:US12045414B2
公开(公告)日:2024-07-23
申请号:US18322494
申请日:2023-05-23
发明人: Xuerui Gong , Jiangsheng Wang , Yong Yu , Chang Zhang
CPC分类号: G06F3/04164 , G06F3/044 , H05K1/0281 , H05K1/117 , H05K1/118 , H05K2201/10128
摘要: The embodiments of the present disclosure provide a chip on flex (COF), a touch assembly, and a display device. The chip on flex includes a flexible base provided with a first opening, the flexible base includes a bonding area provided with a plurality of metal bonding pads; on the flexible base, a spacing area with a preset range is provided between the first opening and the bonding area; wherein, the flexible base is provided with a reinforcement sheet thereon, the reinforcement sheet is located on a portion of the flexible base other than the first opening, the spacing area and the bonding area.
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公开(公告)号:US11829541B2
公开(公告)日:2023-11-28
申请号:US17631482
申请日:2021-03-11
发明人: Shimin Pu , Jianjun Wu , Jiangsheng Wang , Chang Zhang , Qi Liu
IPC分类号: G06F3/041 , G06F3/044 , H10K59/122 , H10K59/12
CPC分类号: G06F3/0412 , G06F3/0443 , G06F3/0445 , G06F3/0446 , G06F3/04164 , H10K59/122 , G06F2203/04103 , G06F2203/04107 , G06F2203/04111 , H10K59/1201
摘要: A display panel and a manufacturing method thereof, and a display device are provided. The display panel includes: a substrate; a plurality of light-emitting elements and an encapsulation layer disposed on the substrate, with the plurality of light-emitting elements located between the encapsulation layer and the substrate; a transfer layer disposed on a side of the encapsulation layer away from the substrate and bonded to the encapsulation layer, with an adhesive force between the transfer layer and the encapsulation layer greater than that between an organic adhesive layer and the encapsulation layer, and the organic adhesive layer configured to react chemically under a preset catalytic condition to be formed to the transfer layer; and a touch structure (40) disposed on a side of the transfer layer away from the substrate and configured to detect occurrence of a touch action.
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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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