公开(公告)号：US20160351165A1

公开(公告)日：2016-12-01

申请号：US14727763

申请日：2015-06-01

Applicant: Novatek Microelectronics Corp.

Inventor： Kuei-Chung Chang ,  Wan-Yu Kuo ,  Tzu-Chu Yin ,  Chun-Ta Wu ,  I-Te Liu

IPC: G09G5/04 ,  G09G5/30 ,  G09G5/10 ,  G06F3/0484 ,  G09G5/00

CPC classification number: G06F3/04842 ,  G09G3/2003 ,  G09G2320/0276 ,  G09G2320/0606 ,  G09G2320/0666 ,  G09G2320/0673

Abstract: A display driver configured to drive a display panel to display an image is provided. The display driver includes an interpolation operation unit and a gamma circuit. The interpolation operation unit is configured to receive two gamma reference curves, and perform an interpolation operation on the two gamma reference curves to generate a plurality of gamma curves. The gamma circuit is configured to select one of the generated gamma curves based on a user selection signal, and drive the display panel to display the image based on the selected gamma curve, so as to adjust a color temperature of the image based on the user selection signal. Color temperatures of the generated gamma curves are distinct, and the generated gamma curves have the same gamma value. Furthermore, a method for adjusting a color temperature of an image is also provided.

Abstract translation: 提供了配置成驱动显示面板显示图像的显示驱动器。 显示驱动器包括内插运算单元和伽马电路。 内插运算单元被配置为接收两个伽马参考曲线，并对两个伽马参考曲线进行插值运算以产生多个伽马曲线。 伽马电路被配置为基于用户选择信号来选择所生成的伽马曲线中的一个，并且基于所选择的伽马曲线驱动显示面板显示图像，以便基于用户来调整图像的色温 选择信号。 产生的伽马曲线的色温是不同的，所产生的伽马曲线具有相同的伽马值。 此外，还提供了一种用于调节图像的色温的方法。

公开(公告)号：US20170039989A1

公开(公告)日：2017-02-09

申请号：US14819436

申请日：2015-08-06

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Shen Chu ,  Chun-Ta Wu ,  Hong-Jun Hsiao ,  Chieh-Hsiang Chang ,  Feng-Jung Kuo

IPC: G09G5/02 ,  G09G5/10

CPC classification number: G09G5/02 ,  G09G5/10 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2320/0693

Abstract: A gamma curve and a color coordinate adjusting apparatus and method are provided. The method includes: receiving a display image and generating a color analyzing data, wherein the color analyzing data comprises a plurality of stimulus values respectively corresponding to a plurality of driven gray levels; receiving a target color coordinate value and a target luminance value; operating a searching operation according to a setting range on the color analyzing data, calculating a simulation color coordinate value and a simulation luminance value according to the stimulus values of each of the driven voltage levels, and obtaining a plurality of adjusted node information for the gamma curve and the color coordinate according to a difference between the target color coordinate value and the simulation color coordinate value and a difference between the target luminance value and the simulation luminance value corresponding to each of the driven voltage levels.

Abstract translation: 提供伽马曲线和颜色坐标调节装置和方法。 该方法包括：接收显示图像并生成颜色分析数据，其中颜色分析数据包括分别对应于多个驱动灰度级的多个刺激值; 接收目标色坐标值和目标亮度值; 根据颜色分析数据的设定范围进行搜索操作，根据每个驱动电压电平的刺激值计算模拟颜色坐标值和模拟亮度值，并获得多个调整后的伽玛用节点信息 曲线和颜色坐标，根据目标色坐标值和模拟颜色坐标值之间的差以及目标亮度值与对应于每个驱动电压电平的模拟亮度值之间的差。

公开(公告)号：US10078998B2

公开(公告)日：2018-09-18

申请号：US14819436

申请日：2015-08-06

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Shen Chu ,  Chun-Ta Wu ,  Hong-Jun Hsiao ,  Chieh-Hsiang Chang ,  Feng-Jung Kuo

IPC: G09G5/02 ,  G09G5/10

CPC classification number: G09G5/02 ,  G09G5/10 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2320/0693

Abstract: A gamma curve and a color coordinate adjusting apparatus and method are provided. The method includes: receiving a display image and generating a color analyzing data, wherein the color analyzing data comprises a plurality of stimulus values respectively corresponding to a plurality of driven gray levels; receiving a target color coordinate value and a target luminance value; operating a searching operation according to a setting range on the color analyzing data, calculating a simulation color coordinate value and a simulation luminance value according to the stimulus values of each of the driven voltage levels, and obtaining a plurality of adjusted node information for the gamma curve and the color coordinate according to a difference between the target color coordinate value and the simulation color coordinate value and a difference between the target luminance value and the simulation luminance value corresponding to each of the driven voltage levels.

公开(公告)号：US09772756B2

公开(公告)日：2017-09-26

申请号：US14727763

申请日：2015-06-01

Applicant: Novatek Microelectronics Corp.

Inventor： Kuei-Chung Chang ,  Wan-Yu Kuo ,  Tzu-Chu Yin ,  Chun-Ta Wu ,  I-Te Liu

IPC: G09G5/02 ,  G06F3/0484 ,  G09G3/20

CPC classification number: G06F3/04842 ,  G09G3/2003 ,  G09G2320/0276 ,  G09G2320/0606 ,  G09G2320/0666 ,  G09G2320/0673

Abstract: A display driver configured to drive a display panel to display an image is provided. The display driver includes an interpolation operation unit and a gamma circuit. The interpolation operation unit is configured to receive two gamma reference curves, and perform an interpolation operation on the two gamma reference curves to generate a plurality of gamma curves. The gamma circuit is configured to select one of the generated gamma curves based on a user selection signal, and drive the display panel to display the image based on the selected gamma curve, so as to adjust a color temperature of the image based on the user selection signal. Color temperatures of the generated gamma curves are distinct, and the generated gamma curves have the same gamma value. Furthermore, a method for adjusting a color temperature of an image is also provided.