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公开(公告)号：US10181205B2
公开(公告)日：2019-01-15
申请号：US15591121
申请日：2017-05-10
Applicant: Novatek Microelectronics Corp.
Inventor： Lei Zhang , Yuan-Jia Du , Heng-Yao Lin
Abstract: An image processing apparatus including an image processing circuit is provided. The image processing circuit is configured to perform a subpixel conversion operation on an input image of a first format to convert the input image of the first format to the input image of a second format; obtain a first detection result with respect to a target pixel of the input image of the first format; determine a filter parameter with respect to the target pixel according to the first detection result; and perform a subpixel rendering operation on the input image of the second format according to the determined filter parameter to obtain an output image.
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公开(公告)号：US11140393B1
公开(公告)日：2021-10-05
申请号：US16898399
申请日：2020-06-10
Applicant: Novatek Microelectronics Corp.
Inventor： Hui-Yu Jiang , Heng-Yao Lin , Yen-Tao Liao
IPC: H04N19/124 , H04N19/186 , H04N19/159
Abstract: A display device that includes an encoder circuit, a decoder circuit and an overdrive circuit is introduced. The encoder circuit includes a prediction circuit, a quantization circuit, and a bitstream coding circuit. The prediction circuit performs a prediction operation on a first image frame to generate a second image frame. The quantization circuit performs a quantization operation on the second image frame based on a quantization parameter to generated a quantized image frame. The bitstream coding circuit encodes the quantized image frame to generate an encoded bit stream. The quantization parameter is determined according to a grey level of a pixel in the second image frame. The decoder circuit decodes the encoded bit stream to generate a reconstructed image frame. The overdrive circuit generates an overdrive image frame to be displayed on a display panel based on a third image frame and the reconstructed image frame.
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公开(公告)号：US12080036B2
公开(公告)日：2024-09-03
申请号：US18323351
申请日：2023-05-24
Applicant: Novatek Microelectronics Corp.
Inventor： Hui-Yu Jiang , Heng-Yao Lin , Yen-Tao Liao
CPC classification number: G06T9/20 , G06T5/50 , G06T5/70 , G06T5/92 , G06T2207/20192
Abstract: An image processing method including the following steps is provided. An image information of an image is received, wherein the image includes a plurality of blocks and the image information includes a plurality of pixel information of each block. A dual gamma correction is performed on a first group of blocks of the image to obtain one or more corrected blocks and the dual gamma correction is skipped on a second group of blocks of the image to obtain a plurality of uncorrected blocks. A first encoding process is performed on the one or more corrected blocks to obtain a plurality of first encoded blocks. A second encoding process different from the first encoding process is performed on the plurality of uncorrected blocks to obtain a plurality of second encoded blocks.
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Patent Agency Ranking
公开(公告)号：US11887552B1
公开(公告)日：2024-01-30
申请号：US17883634
申请日：2022-08-09
Applicant: Novatek Microelectronics Corp.
Inventor： Fu-Jung Wen , Heng-Yao Lin , Yen-Tao Liao , Jen-Ta Yang , Yu-Hung Su
IPC: G09G3/36
CPC classification number: G09G3/3607 , G09G2310/061 , G09G2320/0242 , G09G2320/0247 , G09G2340/0435
Abstract: The disclosure provides a display driving device and a display control device and an operation method thereof. The display control device includes a data analyzing circuit and a data compensation circuit. The data analyzing circuit performs arithmetic operation on multiple sub-pixel data output by a target driving channel of a source driver in a current frame to obtain a resultant value corresponding to the target driving channel. The data compensation circuit determines at least one compensation grayscale value corresponding to the resultant value. The compensation grayscale value is to be displayed by the target driving channel in a vertical blank period of a frame period in which the current frame is displayed. The target driving channel of the source driver outputs at least one compensation voltage corresponding to the at least one compensation grayscale value in the vertical blank period of the frame period.
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公开(公告)号：US11741636B2
公开(公告)日：2023-08-29
申请号：US16987410
申请日：2020-08-07
Applicant: Novatek Microelectronics Corp.
Inventor： Hui-Yu Jiang , Heng-Yao Lin , Yen-Tao Liao
CPC classification number: G06T9/20 , G06T5/002 , G06T5/009 , G06T5/50 , G06T2207/20192
Abstract: An image processing method including the following steps is provided. An image information of an image is received, wherein the image includes a plurality of blocks and the image information includes a plurality of pixel information of each block. A dual gamma correction is performed on a first group of blocks of the image to obtain one or more corrected blocks and the dual gamma correction is skipped on a second group of blocks of the image to obtain a plurality of uncorrected blocks. A first encoding process is performed on the one or more corrected blocks to obtain a plurality of first encoded blocks. A second encoding process different from the first encoding process is performed on the plurality of uncorrected blocks to obtain a plurality of second encoded blocks.
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公开(公告)号：US20180330523A1
公开(公告)日：2018-11-15
申请号：US15591121
申请日：2017-05-10
Applicant: Novatek Microelectronics Corp.
Inventor： Lei Zhang , Yuan-Jia Du , Heng-Yao Lin
IPC: G06T11/00
CPC classification number: G06T11/001 , G09G5/02
Abstract: An image processing apparatus including an image processing circuit is provided. The image processing circuit is configured to perform a subpixel conversion operation on an input image of a first format to convert the input image of the first format to the input image of a second format; obtain a first detection result with respect to a target pixel of the input image of the first format; determine a filter parameter with respect to the target pixel according to the first detection result; and perform a subpixel rendering operation on the input image of the second format according to the determined filter parameter to obtain an output image.
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公开(公告)号：US20240054968A1
公开(公告)日：2024-02-15
申请号：US17883634
申请日：2022-08-09
Applicant: Novatek Microelectronics Corp.
Inventor： Fu-Jung Wen , Heng-Yao Lin , Yen-Tao Liao , Jen-Ta Yang , Yu-Hung Su
IPC: G09G3/36
CPC classification number: G09G3/3607 , G09G2320/0242 , G09G2320/0247 , G09G2310/061 , G09G2340/0435
Abstract: The disclosure provides a display driving device and a display control device and an operation method thereof. The display control device includes a data analyzing circuit and a data compensation circuit. The data analyzing circuit performs arithmetic operation on multiple sub-pixel data output by a target driving channel of a source driver in a current frame to obtain a resultant value corresponding to the target driving channel. The data compensation circuit determines at least one compensation grayscale value corresponding to the resultant value. The compensation grayscale value is to be displayed by the target driving channel in a vertical blank period of a frame period in which the current frame is displayed. The target driving channel of the source driver outputs at least one compensation voltage corresponding to the at least one compensation grayscale value in the vertical blank period of the frame period.
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公开(公告)号：US20230298220A1
公开(公告)日：2023-09-21
申请号：US18323351
申请日：2023-05-24
Applicant: Novatek Microelectronics Corp.
Inventor： Hui-Yu Jiang , Heng-Yao Lin , Yen-Tao Liao
CPC classification number: G06T9/20 , G06T5/009 , G06T5/002 , G06T5/50 , G06T2207/20192
Abstract: An image processing method including the following steps is provided. An image information of an image is received, wherein the image includes a plurality of blocks and the image information includes a plurality of pixel information of each block. A dual gamma correction is performed on a first group of blocks of the image to obtain one or more corrected blocks and the dual gamma correction is skipped on a second group of blocks of the image to obtain a plurality of uncorrected blocks. A first encoding process is performed on the one or more corrected blocks to obtain a plurality of first encoded blocks. A second encoding process different from the first encoding process is performed on the plurality of uncorrected blocks to obtain a plurality of second encoded blocks.
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