公开(公告)号：US11508302B2

公开(公告)日：2022-11-22

申请号：US17519592

申请日：2021-11-05

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chieh-Hsiang Chang ,  Wen-Pin Tsai

IPC: G09G3/3233

Abstract: A method for a driver circuit configured to drive a display panel includes steps of: outputting a plurality of control signals according to a first control timing scheme to control a multiplexing circuit comprising a plurality of switches disposed in the display panel in a first operation mode; and outputting the plurality of control signals according to a second control timing scheme to control the multiplexing circuit in a second operation mode. Wherein, the first control timing scheme comprises a pre-charge period in which the plurality of switches of the multiplexing circuit are turned on, and the second control timing scheme comprises no pre-charge period.

公开(公告)号：US20220262320A1

公开(公告)日：2022-08-18

申请号：US17673807

申请日：2022-02-17

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chieh-Hsiang Chang

IPC: G09G3/3291

Abstract: A method for a display driver circuit configured to drive a display panel includes steps of: determining whether a plurality of first data codes corresponding to first data voltages to be output through a multiplexer to data lines in the display panel during a first horizontal line period equal; determining whether each of the first data codes equals a corresponding second data code among a plurality of second data codes corresponding to second data voltages to be output through the multiplexer to the data lines during a second horizontal line period immediately after the first horizontal line period; and in response to that the first data codes equal and each of the first data codes equal the corresponding second data code, outputting a control signal to keep a switch of the multiplexer staying in a turn-on state after the switch is turned on for outputting a first data voltage.

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。