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公开(公告)号：US20240363087A1
公开(公告)日：2024-10-31
申请号：US18645016
申请日：2024-04-24
Applicant: HKC Corporation Limited
Inventor： Yuanping ZHANG , Mancheng ZHOU , Haijiang YUAN
IPC: G09G3/36
CPC classification number: G09G3/3696 , G09G2300/0842 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0271
Abstract: A driving circuit for a display panel, a display device, and a driving method are provided. The driving circuit includes a common voltage feedback line and N common voltage detection units. The N common voltage detection units are electrically connected to N common voltage collection points of a common electrode of the display panel in one-to-one correspondence. Each common voltage detection unit includes a switch module and a logic circuit. The switch module has a first connection end electrically connected to a common voltage collection point corresponding to the common voltage detection unit and a second connection end is electrically connected to the common voltage feedback line. N logic circuits sequentially output control signals to corresponding switch modules, and control N switch modules to sequentially turn on, to make the N common voltage collection points sequentially output N common voltages through the turned-on switch modules and common voltage feedback line.
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公开(公告)号：US20240071296A1
公开(公告)日：2024-02-29
申请号：US18383052
申请日：2023-10-24
Applicant: HKC CORPORATION LIMITED
Inventor： Mancheng ZHOU , Haoxuan Zheng
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/06 , G09G2320/0626
Abstract: A driving method and a driving device of a display panel, and a display device are provided. The driving method includes: receiving a video signal transmitted by an external processor; transmitting a first scanning signal to a current row of pixels in response to a first gray-scale value of each of the current row of pixels of the display panel corresponding to the video signal being greater than a preset gray-scale value; transmitting a second scanning signal to a next row of pixels of the display panel; and transmitting, based on the first gray-scale value, a data signal to the display panel and driving the display panel to display the video signal.
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公开(公告)号：US20240212611A1
公开(公告)日：2024-06-27
申请号：US18344778
申请日：2023-06-29
Applicant: HKC CORPORATION LIMITED
Inventor： Mancheng ZHOU , Yuanping ZHANG , Haijiang YUAN
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0452 , G09G2300/0819 , G09G2300/0842 , G09G2320/045
Abstract: A pixel drive circuit, a resistance compensation method and a display panel are disclosed, wherein the compensation circuit in the pixel drive circuit is configured to compensate the resistance from the data line to the control end of the drive switch, so that the resistance of the data line to the control end of the drive switch in different pixel rows tend to be consistent, thus the efficiency of the same data line when charging the pixels in the pixel row at the far end is consistent with the efficiency at the near end.
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公开(公告)号：US20230377530A1
公开(公告)日：2023-11-23
申请号：US18090629
申请日：2022-12-29
Applicant: HKC Corporation Limited
Inventor： Mancheng ZHOU , Haoxuan ZHENG
IPC: G09G3/36
CPC classification number: G09G3/3688 , G09G2310/027
Abstract: A data driving circuit, a display module, and a display device are provided. The data driving circuit is configured to drive a display device to display different grayscale images. The voltage-dividing circuit includes 2n voltage-dividing signal terminals arranged sequentially from low to high voltage. The switching circuit includes 2n switching sub-circuits. Each of the 2n switching sub-circuits includes a receiving terminal, a first output terminal, and a second output terminal. The receiving terminal is electrically coupled to the voltage-dividing signal terminal. The voltage selecting circuit includes 2n selecting signal terminals. Each of the 2n selecting signal terminals is electrically coupled with the first output terminal of one of the 2n switching sub-circuits and the second output terminal of one of the 2n switching sub-circuits.
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公开(公告)号：US20230343301A1
公开(公告)日：2023-10-26
申请号：US18090811
申请日：2022-12-29
Applicant: HKC Corporation Limited
Inventor： Mancheng ZHOU , Haijiang YUAN
CPC classification number: G09G3/344 , G09G3/2007 , G09G2310/0254 , G09G2320/0257 , G02F1/167
Abstract: An image display method and a display device are provided. The driving module is coupled with multiple pixel units in the display panel and provides a driving voltage according to display data to define an electric field to display an image. For each of the multiple pixel units, an image is displayed under an electric field defined by a first driving voltage corresponding to first display data during a display period of a first frame image. Reset data is output by the driving module to said each of the multiple pixel units. A reset voltage corresponding to the reset data provides an electric field for said each of the multiple pixel units. An image is displayed under an electric field defined by a second driving voltage corresponding to second display data during a display period of a second frame image.
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Patent Agency Ranking
公开(公告)号：US20240363064A1
公开(公告)日：2024-10-31
申请号：US18647452
申请日：2024-04-26
Applicant: HKC CORPORATION LIMITED
Inventor： Mancheng ZHOU , Haijiang Yuan
IPC: G09G3/3208 , G06T7/90 , G09G3/00
CPC classification number: G09G3/3208 , G06T7/90 , G09G3/006 , G06T2207/10024 , G09G2320/0242 , G09G2320/0257
Abstract: A method and a device for removing afterimage, and a display panel. The method includes the image displayed on the display panel is first monitored to determine a target area of the image, and the target area is an area where a color does not change in the image; the background color in the target area is determined; the pixel data in the target area is traversed to determine a block in an image displayed in the target area; and finally, the target pixel in the block based on the background color is determined, and the color of the target pixel is switched according to a preset time interval.
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公开(公告)号：US20240321193A1
公开(公告)日：2024-09-26
申请号：US18447676
申请日：2023-08-10
Applicant: HKC CORPORATION LIMITED
Inventor： Mancheng ZHOU , Rongrong LI
IPC: G09G3/3208 , G09G3/20
CPC classification number: G09G3/3208 , G09G3/2007 , G09G3/2092 , G09G2320/0626 , G09G2320/0673 , G09G2340/16
Abstract: An organic light emitting diode display method comprises: converting a video signal into a digital signal, and detecting a screen state displayed corresponding to the video signal; when the screen state is a dynamic screen, outputting first gamma voltage data being configured to control the dynamic screen to be displayed according to a first brightness curve; when the screen state is a static screen, outputting second gamma voltage data being configured to control the static screen to be displayed according to a second brightness curve, wherein the peak value of the first brightness curve being greater than the peak value of the second brightness curve; and receiving the digital signal and the first gamma voltage data or the second gamma voltage data, and performing display correspondingly according to the digital signal and the first gamma voltage data or the second gamma voltage data.
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公开(公告)号：US20240312405A1
公开(公告)日：2024-09-19
申请号：US18471343
申请日：2023-09-21
Applicant: HKC CORPORATION LIMITED
Inventor： Mancheng ZHOU , Baohong KANG
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2330/021
Abstract: A voltage compensation circuit, voltage compensation method, and display device, in which the voltage compensation circuit is applicable to the pixel unit of the 2T1C structure; during the voltage sensing period, the changed data signal is adjusted and output to the pixel unit, and the data signal is sensed at the turning-on moment of the second transistor of the pixel unit, and the threshold voltage is determined according to the voltage value of the data signal at the turning-on moment; and during the voltage compensation period, the voltage value of the compensated data signal is determined according to the threshold voltage value and output to the corresponding pixel unit; sensing of the threshold of the second transistor is realized, and there is no need to arrange T3, sensor line or control signal line, the structure of the display panel is simplified and the design cost is reduced.
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公开(公告)号：US20210398502A1
公开(公告)日：2021-12-23
申请号：US17297443
申请日：2020-06-09
Inventor： Mancheng ZHOU
IPC: G09G3/36
Abstract: The application discloses a driving method and a driver circuit for a display panel, where the driving method includes the following steps: starting a source electrode driver circuit, outputting OV voltage, and simultaneously enabling a common line to output 0 V voltage or be disconnected; outputting, a preset initial voltage by the source electrode driver circuit, and simultaneously enabling the common line to output the identical initial voltage; after starting the source electrode driver circuit, transmitting a gray-scale voltage to the display panel; meanwhile, controlling a gamma circuit of the display panel to output a preset common voltage to the common line through a common voltage line.
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公开(公告)号：US20240313003A1
公开(公告)日：2024-09-19
申请号：US18359590
申请日：2023-07-26
Applicant: HKC CORPORATION LIMITED
Inventor： Mancheng ZHOU , Baohong Kang
CPC classification number: H01L27/124 , H01L25/18 , H01L27/1259
Abstract: A manufacturing method includes: providing a substrate; forming, in a display area of the substrate, a plurality of lines of scan lines, a plurality of rows of data lines and a plurality of display assemblies; forming, at the periphery of the display area, a sense line including a first sensing section connected to each of the scan lines, a switch assembly and a second sensing section connected in sequence and connected to each of the data lines; inputting a shut-off signal to a control terminal of the switch assembly; inputting a scanning signal to each of the scan lines through the first sensing section and inputting a data signal to each of the data lines through the second sensing section; and disconnecting the scan lines from the first sensing section and disconnecting the data lines from the second sensing section when confirming that each display assemblies is lighted up.
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