公开(公告)号：US20140043313A1

公开(公告)日：2014-02-13

申请号：US14058304

申请日：2013-10-21

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition.

Abstract translation: 提供伽马电压发生器以产生多个第一伽马电压和第二伽马电压。 在第一帧周期内由伽马电压发生器的DAC产生的第一伽马电压中的至少一个和由第二帧周期内的DAC产生的第二伽马电压中的至少一个从相同的一个伽马缓冲器输出 的γ电压发生器，由此所传输的伽马电压具有基本相等的偏移。 因此，显示质量接近理想状态。

公开(公告)号：US11128304B1

公开(公告)日：2021-09-21

申请号：US16879768

申请日：2020-05-21

Applicant: Novatek Microelectronics Corp.

Inventor： Yun-Sheng Yao ,  Shen-Iuan Liu ,  Yen-Long Lee ,  Peng-Yu Chen ,  Chih-Hao Huang ,  Yao-Hung Kuo

IPC: H03L7/08 ,  H04L7/033 ,  G06F1/12

Abstract: A clock and data recovery device and a jitter tolerance enhancement method thereof are provided. The clock and data recovery device includes a clock and data recovery circuit and a jitter tolerance enhancement circuit. A data input terminal of the clock and data recovery circuit is suitable for receiving a data signal. The clock and data recovery circuit recovers the data signal to a clock. The jitter tolerance enhancement circuit is coupled to the data input terminal of the clock and data recovery circuit to receive the data signal. The jitter tolerance enhancement circuit detects a correlation between the data signal and the clock and correspondingly adjusts a loop gain of the clock and data recovery circuit according to the correlation.

公开(公告)号：US10943556B2

公开(公告)日：2021-03-09

申请号：US16909934

申请日：2020-06-23

Applicant: NOVATEK Microelectronics Corp.

Inventor： Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G3/36

Abstract: A data driver for driving a display panel includes a first driving channel coupled to a polarity inversion circuit and configured to generate a first data voltage signal having a positive polarity output to the display panel according to a plurality of first pixel data; a second driving channel coupled to the polarity inversion circuit and configured to generate a second data voltage signal having a negative polarity output to the display panel according to a plurality of second pixel data; wherein the first data voltage signal is output to first output node through the polarity inversion circuit during a first line period and the second data voltage signal is output to the first output node through the polarity inversion circuit during a second line period after the first line period, and the first line period and the second line period respectively belong to two consecutive frame periods.

公开(公告)号：US09013392B2

公开(公告)日：2015-04-21

申请号：US14058304

申请日：2013-10-21

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition.

Abstract translation: 提供伽马电压发生器以产生多个第一伽马电压和第二伽马电压。 在第一帧周期内由伽马电压发生器的DAC产生的第一伽马电压中的至少一个和由第二帧周期内的DAC产生的第二伽马电压中的至少一个从相同的一个伽马缓冲器输出 的γ电压发生器，由此所传输的伽马电压具有基本相等的偏移。 因此，显示质量接近理想状态。