公开(公告)号：US20160163286A1

公开(公告)日：2016-06-09

申请号：US14788805

申请日：2015-07-01

Applicant: Novatek Microelectronics Corp.

Inventor： Hsueh-Yen Yang ,  Kai-Min Yang ,  Chin-Yuan Tu ,  Feng-Ting Pai

IPC: G09G5/10 ,  G09G5/02

CPC classification number: G09G3/2011 ,  G09G2300/0439 ,  G09G2300/0452 ,  G09G2330/021 ,  G09G2340/0457

Abstract: A display driver configured to drive a display panel is provided. The display panel displays an image frame in a first display mode or a second display mode. The display driver includes a first display driving channel and a second display driving channel. The first and the second display driving channels are configured to drive the display panel to display the image frame by using a sub-pixel rendering method. In the second display mode, the second display driving channel drives sub-pixels on the display panel to display corresponding grayscales by using a plurality of gamma voltages. A voltage value of at least one gamma voltage among the gamma voltages is determined according to an arrangement of the sub-pixels on the display panel. Furthermore, a display apparatus is also provided.

Abstract translation: 提供了配置为驱动显示面板的显示驱动器。 显示面板以第一显示模式或第二显示模式显示图像帧。 显示驱动器包括第一显示驱动通道和第二显示驱动通道。 第一和第二显示器驱动通道被配置为通过使用子像素渲染方法驱动显示面板来显示图像帧。 在第二显示模式中，第二显示驱动通道驱动显示面板上的子像素，通过使用多个伽马电压来显示相应的灰度级。 根据显示面板上的子像素的布置来确定伽马电压中的至少一个伽马电压的电压值。 此外，还提供了显示装置。

公开(公告)号：US20150340008A1

公开(公告)日：2015-11-26

申请号：US14287060

申请日：2014-05-26

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Yuan Yang ,  Yu-Hsing Chuang ,  Feng-Ting Pai

IPC: G09G5/06 ,  G09G5/10 ,  G06T7/40

CPC classification number: G09G5/06 ,  G09G5/10 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2360/144 ,  H04N1/60 ,  H04N1/6077

Abstract: A color temperature compensation apparatus includes a compensation table and a controller. The compensation table records a relationship between a plurality of compensation values and each of a plurality of gray-levels, wherein the relationship is established based on a plurality of color temperature compensation curves. The controller is coupled to the compensation table, and generates a plurality of compensation values by referring to the compensation table according to a gray-level of each of a plurality of image data and a reference color temperature. The controller further calculates each of a plurality of compensated image data according to the compensation values, wherein the color temperature compensation curves respectively correspond to a plurality of color temperatures.

Abstract translation: 色温补偿装置包括补偿表和控制器。 补偿表记录多个补偿值与多个灰度级中的每一个之间的关系，其中，基于多个色温补偿曲线建立该关系。 控制器耦合到补偿表，并且通过根据多个图像数据和参考色温中的每一个的灰度级参考补偿表来生成多个补偿值。 控制器还根据补偿值来计算多个补偿图像数据中的每一个，其中色温补偿曲线分别对应于多个色温。

公开(公告)号：US20240078969A1

公开(公告)日：2024-03-07

申请号：US18235891

申请日：2023-08-21

Applicant: NOVATEK Microelectronics Corp.

Inventor： Xuan-Yong Lin ,  Shang-Yu Su ,  Feng-Ting Pai

IPC: G09G3/3208 ,  G06T3/40 ,  G06T5/50 ,  G09G3/20

CPC classification number: G09G3/3208 ,  G06T3/40 ,  G06T5/50 ,  G09G3/2007 ,  G09G2320/0257 ,  G09G2340/02 ,  G09G2340/16 ,  G09G2360/12 ,  G09G2360/16

Abstract: An image processing circuit includes a receiver, at least one memory, a recognition circuit, a calculation circuit and a compensation circuit. The receiver is configured to receive a current image frame and a plurality of previous image frames. The at least one memory is configured to store the plurality of previous image frames. The recognition circuit is configured to select a first previous image frame or a second previous image frame among the plurality of previous image frames from the at least one memory. The calculation circuit is configured to calculate a compensation value for the current image frame according to at least one of the first previous image frame and the second previous image frame by referring to a lookup table (LUT). The compensation circuit is configured to modify a current image data of the current image frame by using the compensation value.

公开(公告)号：US11495159B2

公开(公告)日：2022-11-08

申请号：US17012070

申请日：2020-09-04

Applicant: Novatek Microelectronics Corp.

Inventor： Hsueh-Yen Yang ,  Kai-Min Yang ,  Feng-Ting Pai

IPC: G02F1/1335 ,  G09G3/20 ,  G09G3/36

Abstract: A display device including a plurality of sub-pixel arrays is provided. Each of sub-pixel arrays includes a plurality of first sub-pixels, at least one second sub-pixel and at least one third sub-pixel. The first sub-pixels have a first color and form a plurality of vertexes of a virtual quadrilateral. There is not any other first sub-pixels having the first color located in the virtual quadrilateral. The second sub-pixel has a second color different from the first color and is located in the virtual quadrilateral. The third sub-pixel has a third color different from the first color and the second color and is located in the virtual quadrilateral.

公开(公告)号：US11205367B2

公开(公告)日：2021-12-21

申请号：US16507055

申请日：2019-07-10

Applicant: Novatek Microelectronics Corp.

Inventor： Hsueh-Yen Yang ,  Kai-Min Yang ,  Feng-Ting Pai

IPC: G02F1/1335 ,  G09G3/20 ,  G09G3/36

Abstract: A display panel including a plurality of sub-pixel repeating units is provided. The sub-pixel repeating units are repeatedly arranged on the display panel. Each of the sub-pixel repeating units includes at least one first color sub-pixel and at least one second color sub-pixel. On the display panel, the adjacent first color sub-pixels form a first polygon, and the adjacent second color sub-pixels form a second polygon. The area of the first polygon is at least twice the area of the second polygon.

公开(公告)号：US20210304677A1

公开(公告)日：2021-09-30

申请号：US17199468

申请日：2021-03-12

Applicant: NOVATEK Microelectronics Corp.

Inventor： Jun-Yu Yang ,  Wei-Jhe Ma ,  Yung-Cheng Tsai ,  Feng-Ting Pai

IPC: G09G3/3258

Abstract: The present invention provides an image compensation circuit generating output image data to drive a display panel having pixels. The image compensation circuit includes first/second control circuits and first/second compensation circuits. The first control circuit may receive input image data for the pixels and generate a plurality of first compensation values corresponding to compensation for voltage drop on the display panel according to the input image data. The first compensation circuit may compensate the input image data for the pixels with the first compensation values. The second control circuit may receive the first compensation values from the first control circuit and generate a plurality of second compensation values corresponding to compensation for channel length modulation (CLM) effect of the pixels according to the first compensation values. The second compensation circuit may compensate the input image data for the pixels with the second compensation values, to generate the output image data.

公开(公告)号：US11049471B2

公开(公告)日：2021-06-29

申请号：US16524264

申请日：2019-07-29

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Jun-Yu Yang ,  Shang-Yu Su ,  Feng-Ting Pai

IPC: G09G5/02

Abstract: A display control circuit transforms a plurality of input points of an input image to a plurality of target subpixels of a display panel. In the display panel, a first row of the target subpixels and a second row of the target subpixels are non-aligned in a vertical direction. The display control circuit includes a subpixel rendering circuit. The subpixel rendering circuit maps a first row of the input points to the first row of the target subpixels, and maps a second row of the input points to the second row of the target subpixels. The coordinates of the first row of the input points are respectively equivalent to the coordinates of the first row of the target subpixels. The coordinates of the second row of the input points are respectively equivalent to the coordinates of the second row of the target subpixels being shifted in a horizontal direction.

公开(公告)号：US10909940B2

公开(公告)日：2021-02-02

申请号：US16223129

申请日：2018-12-18

Applicant: NOVATEK Microelectronics Corp.

Inventor： Feng-Ting Pai ,  Jun-Yu Yang

IPC: G09G3/36 ,  G02F1/01 ,  G02F1/13357 ,  G09G3/20 ,  G02F1/1345

Abstract: A method of handling overdrive for image data includes the steps of: receiving a current image data and a previous image data; obtaining an overdrive image data by finding an overdrive lookup table according to the current image data and the previous image data; generating a weighting mask comprising a plurality of weighting parameters; calculating an output image data by combining the overdrive image data with the current image data according to one of the weighting parameters corresponding to a pixel of the current image data; and outputting the output image data to the pixel.

公开(公告)号：US10885827B2

公开(公告)日：2021-01-05

申请号：US15925795

申请日：2018-03-20

Applicant: Novatek Microelectronics Corp.

Inventor： Shang-Yu Su ,  Feng-Ting Pai ,  Hsueh-Yen Yang ,  Kai-Min Yang

IPC: G02F1/1335 ,  G09G3/20 ,  G09G3/36

Abstract: A display panel including a plurality of sub-pixel repeating units is provided. The sub-pixel repeating units are repeatedly arranged on the display panel. Each of the sub-pixel repeating units includes at least one first color sub-pixel and at least one second color sub-pixel. On the display panel, the adjacent first color sub-pixels form a first polygon, and the adjacent second color sub-pixels form a second polygon. The area of the first polygon is at least twice the area of the second polygon.

公开(公告)号：US20200251033A1

公开(公告)日：2020-08-06

申请号：US16262934

申请日：2019-01-31

Applicant: Novatek Microelectronics Corp.

Inventor： Wei-Jhe Ma ,  Yung-Cheng Tsai ,  Feng-Ting Pai

IPC: G09G3/20

Abstract: A display apparatus and a brightness uniformity compensation method are introduced. The display apparatus includes a display panel, a content analysis circuit, a compensation table generator and a pixel compensation circuit. The content analysis circuit receives display data for a pixel of the display panel and analyzes a display load of the display data to generate a data compensation value. The compensation table generator generates a compensation table that includes the data compensation value corresponding to the display data of each pixel of the display panel. The pixel compensation circuit compensates the display data with the corresponding data compensation value included in the compensation table to generate compensated display data, wherein the compensated display data are displayed on the display panel of the display apparatus.