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公开(公告)号：US20240169876A1
公开(公告)日：2024-05-23
申请号：US17755478
申请日：2022-02-24
Inventor： Weifeng Chen
IPC: G09G3/20 , G09G3/3233
CPC classification number: G09G3/2007 , G09G3/3233 , G09G2300/0842 , G09G2320/0233
Abstract: The present application provides a pixel circuit and a display panel. The pixel circuit includes a light-emitting element, a driving circuit, a grayscale adjustment circuit, and a control circuit. The driving circuit can provide a corresponding power supply voltage for the light-emitting element, and the control circuit can control at least one of at least two grayscale adjustment branches to be in a conductive state.
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Patent Agency Ranking
公开(公告)号：US12159564B2
公开(公告)日：2024-12-03
申请号：US17755478
申请日：2022-02-24
Inventor： Weifeng Chen
IPC: G09G3/20 , G09G3/3233
Abstract: The present application provides a pixel circuit and a display panel. The pixel circuit includes a light-emitting element, a driving circuit, a grayscale adjustment circuit, and a control circuit. The driving circuit can provide a corresponding power supply voltage for the light-emitting element, and the control circuit can control at least one of at least two grayscale adjustment branches to be in a conductive state.
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公开(公告)号：US10704659B2
公开(公告)日：2020-07-07
申请号：US15539694
申请日：2017-05-19
Inventor： Weifeng Chen
Abstract: The present invention provides a curvature-adjustable backboard assembly and a curved display device. The curvature-adjustable backboard assembly of the present invention includes a curvable backboard, a slider-crank mechanism, and a first low-speed position-limiting electric machine. The slider-crank mechanism comprises a central pivot and a first rail that are fixed to the backboard, a first slider mounted to the first rail, a first crank that is rotatable about the central pivot as being driven by the first low-speed position-limiting electric machine, and a first connection rod having two ends respectively and pivotally coupled to the first slider and the first crank, wherein when the first crank is driven to rotate, the first connection rod drives the first slider to move along the first rail and during the movement of the first slider along the first rail, a height of an arched form of the backboard with respect to the central pivot at a location where the first slider passes may vary accordingly so as to allow for easy and efficient variation of a curvature of the backboard according to a desired curving condition.
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公开(公告)号：US11817032B1
公开(公告)日：2023-11-14
申请号：US18193883
申请日：2023-03-31
Inventor： Weifeng Chen , Qingsheng Lan
IPC: G09G3/20
CPC classification number: G09G3/2074 , G09G2300/0814 , G09G2310/027 , G09G2310/0291 , G09G2310/08
Abstract: The present invention discloses a display device and a display method. A voltage adjustment circuit is configured to compare whether a difference between absolute values of a first data voltage signal and a second data voltage signal at a preset moment exceeds a set threshold range and output a control signal to a voltage adjustment circuit when the difference exceeds the set threshold range. Thus, a first data latch and update signal of a first source driver chip is adjusted by the voltage adjustment circuit, or a second data latch and update signal of a second source driver chip is adjusted, so that the first data voltage signal and the second data voltage signal are respectively output to a first data line and a second data line at a same time.
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公开(公告)号：US11098788B2
公开(公告)日：2021-08-24
申请号：US16881008
申请日：2020-05-22
Inventor： Weifeng Chen
Abstract: The present invention provides a curvature-adjustable backboard assembly and a curved display device. The curvature-adjustable backboard assembly of the present invention includes a curvable backboard, a slider-crank mechanism, and a first low-speed position-limiting electric machine. The slider-crank mechanism comprises a central pivot and a first rail that are fixed to the backboard, a first slider mounted to the first rail, a first crank that is rotatable about the central pivot as being driven by the first low-speed position-limiting electric machine, and a first connection rod having two ends respectively and pivotally coupled to the first slider and the first crank, wherein when the first crank is driven to rotate, the first connection rod drives the first slider to move along the first rail and during the movement of the first slider along the first rail, a height of an arched form of the backboard with respect to the central pivot at a location where the first slider passes may vary accordingly so as to allow for easy and efficient variation of a curvature of the backboard according to a desired curving condition.
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公开(公告)号：US20200284327A1
公开(公告)日：2020-09-10
申请号：US16881008
申请日：2020-05-22
Inventor： Weifeng Chen
IPC: F16H21/22 , H05K5/02 , H05K5/00 , G02F1/1333
Abstract: The present invention provides a curvature-adjustable backboard assembly and a curved display device. The curvature-adjustable backboard assembly of the present invention includes a curvable backboard, a slider-crank mechanism, and a first low-speed position-limiting electric machine. The slider-crank mechanism comprises a central pivot and a first rail that are fixed to the backboard, a first slider mounted to the first rail, a first crank that is rotatable about the central pivot as being driven by the first low-speed position-limiting electric machine, and a first connection rod having two ends respectively and pivotally coupled to the first slider and the first crank, wherein when the first crank is driven to rotate, the first connection rod drives the first slider to move along the first rail and during the movement of the first slider along the first rail, a height of an arched form of the backboard with respect to the central pivot at a location where the first slider passes may vary accordingly so as to allow for easy and efficient variation of a curvature of the backboard according to a desired curving condition.
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