公开(公告)号：US20220013068A1

公开(公告)日：2022-01-13

申请号：US17368838

申请日：2021-07-07

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hui-Feng Lin ,  Yen-Tao Liao

IPC: G09G3/3233

Abstract: The present invention provides an image processing circuit for compensating image data for a display panel used for displaying first and second image patterns respectively having first and second current loadings. The image processing circuit is used for: receiving a first original image data of the first image pattern and a second original image data of the second image pattern having the same brightness value for a pixel at the same location; converting the first original image data into a first final image data to compensate for an IR drop according to the first current loading; and converting the second original image data into a second final image data to compensate for the IR drop according to the second current loading. The first final image data and the second final image data have substantially the same brightness value for the pixel at the same location.

公开(公告)号：US11024242B1

公开(公告)日：2021-06-01

申请号：US16816238

申请日：2020-03-11

Applicant: Novatek Microelectronics Corp.

Inventor： Hui-Feng Lin ,  Yen-Tao Liao

IPC: G09G3/32 ,  G09G3/36

Abstract: A timing controller and an operation method thereof are provided. The timing controller is used to control a signal timing of a display panel. The timing controller includes an analysis circuit and a decision circuit. The analysis circuit analyzes the content of an image frame to obtain an analysis result. The decision circuit is coupled to the analysis circuit to receive the analysis result. The decision circuit determines a global gray level according to the analysis result. In a blanking interval in which a plurality of sub-pixel circuits of the display panel are turned off, a data voltage corresponding to the global gray level is applied to at least one data line of the display panel corresponding to the sub-pixel circuits.

公开(公告)号：US20230306894A1

公开(公告)日：2023-09-28

申请号：US18076411

申请日：2022-12-07

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hui-Feng Lin ,  Yen-Tao Liao

IPC: G09G3/20 ,  G09G3/3208

CPC classification number: G09G3/2096 ,  G09G3/2007 ,  G09G3/3208 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2320/0686 ,  G09G2330/021

Abstract: An image processing method, for processing image data to be displayed by a display panel having a display area being divided into multiple sub-areas, including: determining a power-saving ratio for each sub-area according to a power-saving level; and sequentially adjusting image data of each sub-area in the original image data according to the power-saving ratio corresponding to said sub-area to generate output image data. In the output image data, a characteristic value of the image data corresponding to one of the sub-areas is reduced.

公开(公告)号：US11495177B2

公开(公告)日：2022-11-08

申请号：US17368838

申请日：2021-07-07

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hui-Feng Lin ,  Yen-Tao Liao

IPC: G09G3/3233

Abstract: The present invention provides an image processing circuit for compensating image data for a display panel used for displaying first and second image patterns respectively having first and second current loadings. The image processing circuit is used for: receiving a first original image data of the first image pattern and a second original image data of the second image pattern having the same brightness value for a pixel at the same location; converting the first original image data into a first final image data to compensate for an IR drop according to the first current loading; and converting the second original image data into a second final image data to compensate for the IR drop according to the second current loading. The first final image data and the second final image data have substantially the same brightness value for the pixel at the same location.