公开(公告)号：US20180337646A1

公开(公告)日：2018-11-22

申请号：US15716789

申请日：2017-09-27

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Chih-Wen Lu ,  Po-Yu Tseng ,  Jhih-Siou Cheng ,  Shang-I Liu ,  Chih-Hsien Chou

IPC: H03F3/45 ,  G05F1/56 ,  H03F3/30 ,  H03F1/32

CPC classification number: G05F1/56 ,  H03F1/30 ,  H03F1/32 ,  H03F3/30 ,  H03F3/45

Abstract: An operational amplifier circuit is provided. The operational amplifier circuit includes a differential input stage circuit and a loading stage circuit. The differential input stage circuit includes a first current source, a first transistor, a second transistor, a third transistor, and a fourth transistor. The control terminal of the first transistor receives a first input signal. The control terminal of the second transistor receives a second input signal. The third transistor has a first terminal coupled to the second terminal of the first transistor, a second terminal coupled to the first current source, and a control terminal coupled to the control terminal of the second transistor. The fourth transistor has a first terminal coupled to the second terminal of the second transistor, a second terminal coupled to the first current source, and a control terminal coupled to the control terminal of the first transistor.

公开(公告)号：US09659539B2

公开(公告)日：2017-05-23

申请号：US14687931

申请日：2015-04-16

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Yu Tseng ,  Chieh-An Lin ,  Po-Hsiang Fang ,  Jhih-Siou Cheng ,  Ju-Lin Huang ,  Yi-Chuan Liu

IPC: G09G3/36 ,  G09G3/3258

CPC classification number: G09G3/3648 ,  G09G3/3258 ,  G09G3/3677 ,  G09G2300/04 ,  G09G2310/0291 ,  G09G2310/067 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/0252 ,  G09G2330/02

Abstract: A gate driver, a display apparatus having the same, and a gate driving method are provided. The display apparatus includes a plurality of pixels, a data driver circuit, and a gate driver circuit. The gate driver circuit includes M groups of gate channels. Each of the M groups of gate channels includes a control circuit and an output buffer. The control circuit receives a power supply voltage from a power supply circuit and generates a modulated supply voltage. The output buffer is connected to the control circuit, the output buffer is powered by the modulated supply voltage to output a gate signal to a gate line of the display panel, wherein a driving pulse of the gate signal is shaped during a charge period according to the modulated supply voltage, and the shape of the driving pulse of the gate signal is maintained during a pre-charge period.

公开(公告)号：US09626925B2

公开(公告)日：2017-04-18

申请号：US14669003

申请日：2015-03-26

Applicant: Novatek Microelectronics Corp.

Inventor： Jhih-Siou Cheng ,  Po-Hsiang Fang ,  Chieh-An Lin ,  Po-Yu Tseng ,  Ju-Lin Huang ,  Yi-Chuan Liu

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0413 ,  G09G2310/08 ,  G09G2320/0223

Abstract: A source driver apparatus and an operating method thereof are provided. The source driver apparatus can drive a plurality of source lines of a display panel, wherein the display panel further comprising a gate driver apparatus. The source driver apparatus includes driving channels and a delay control circuit. The driving channels output source driving signals. The delay control circuit controls the driving channels to change delay times of the source driving signals within the same period, such that the delay times of the source driving signals respectively correspond to distances from the source lines to the gate driver apparatus.

公开(公告)号：US20160078794A1

公开(公告)日：2016-03-17

申请号：US14534167

申请日：2014-11-06

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Yu Tseng ,  Jhih-Siou Cheng ,  Pang-Chen Hung

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0264 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2330/025 ,  G09G2330/045

Abstract: A driving device and a source driving method are provided. The driving device includes a first code mapping unit, a first source driving channel, a second code mapping unit and a second source driving channel. The first code mapping unit converts a first input code in input data into a first intermediate code according to a first code-to-code mapping relation. The first source driving channel converts the first intermediate code into a first analog voltage according to a first code-to-voltage mapping relation. The second code mapping unit converts a second input code in the input data into a second intermediate code according to a second code-to-code mapping relation which is different from the first code-to-code mapping relation. The second source driving channel converts the second intermediate code into a second analog voltage according to a second code-to-voltage mapping relation which is different from the first code-to-voltage mapping relation.

Abstract translation: 提供驱动装置和源驱动方法。 驱动装置包括第一码映射单元，第一源驱动信道，第二码映射单元和第二源驱动信道。 第一代码映射单元根据第一代码映射关系将输入数据中的第一输入代码转换为第一中间代码。 第一源驱动通道根据第一代码电压映射关系将第一中间代码转换成第一模拟电压。 第二代码映射单元根据与第一代码到代码映射关系不同的第二代码到代码映射关系将输入数据中的第二输入代码转换为第二中间代码。 第二源极驱动通道根据与第一代码电压映射关系不同的第二代码到电压映射关系将第二中间代码转换成第二模拟电压。

公开(公告)号：US20140078133A1

公开(公告)日：2014-03-20

申请号：US14016135

申请日：2013-09-02

Applicant: Novatek Microelectronics Corp.

Inventor： Hsin-Hung Lee ,  Jr-Ching Lin ,  Chia-Wei Su ,  Po-Yu Tseng ,  Shun-Hsun Yang ,  Po-Hsiang Fang

IPC: G09G5/00

CPC classification number: G09G5/00 ,  G09G3/2092 ,  G09G2310/0283 ,  G09G2310/04 ,  G09G2330/12 ,  G09G2370/08 ,  G09G2370/10

Abstract: A panel display apparatus is provided which includes a timing controller, a plurality of source drivers, a first data path, and a second data path. The first data path and the second data path are both coupled between the timing controller and the source drivers. The timing controller transmits multiple display data to the source drivers via the first data path. When the source drivers detect an event (e.g. error event), the source drivers transmit at least one event data (e.g. notification data) to the timing controller via the second data path to notify the timing controller that event correction (e.g. error correction) is needed.

Abstract translation: 提供了一种面板显示装置，其包括定时控制器，多个源驱动器，第一数据路径和第二数据路径。 第一数据路径和第二数据路径都耦合在时序控制器和源驱动器之间。 定时控制器通过第一数据路径向源驱动器发送多个显示数据。 当源驱动器检测到事件（例如错误事件）时，源驱动器经由第二数据路径将至少一个事件数据（例如通知数据）发送到定时控制器，以通知定时控制器事件校正（例如纠错）为 需要的

公开(公告)号：US09875707B2

公开(公告)日：2018-01-23

申请号：US14708303

申请日：2015-05-11

Applicant: Novatek Microelectronics Corp.

Inventor： Jhih-Siou Cheng ,  Po-Hsiang Fang ,  Po-Yu Tseng ,  Chieh-An Lin ,  Ju-Lin Huang ,  Yi-Chuan Liu

IPC: G09G3/36

CPC classification number: G09G3/3674 ,  G09G3/3648 ,  G09G2310/0213 ,  G09G2310/067 ,  G09G2320/041 ,  G09G2330/025

Abstract: A display apparatus and a gate driving method thereof are provided. The display apparatus includes a display panel and a gate driver. The display panel has a plurality of gate lines. Output terminals of the gate driver are coupled to the gate lines in a one-to-one manner. The gate driver is configured to drive the gate lines according to a scrambled scan sequence.

公开(公告)号：US20170018242A1

公开(公告)日：2017-01-19

申请号：US14801855

申请日：2015-07-17

Applicant: Novatek Microelectronics Corp.

Inventor： Chieh-An Lin ,  Jhih-Siou Cheng ,  Po-Hsiang Fang ,  Po-Yu Tseng ,  Ju-Lin Huang ,  Yi-Chuan Liu

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G2310/0251

Abstract: A display apparatus and a driving method of the same are provided. The display apparatus includes a display panel, a gate driver circuit, and a source driver circuit. During a functional sub-period of a frame period, the gate driver circuit simultaneously drives a plurality of gate lines, and the source driver circuit drives a plurality of source lines, so as to perform a function on a plurality of pixels connected to the gate lines. In a scan sub-period of the frame period, the gate driver circuit drives the gate lines according to a scan sequence, and the source driver circuit correspondingly drives the source lines according to the scan sequence of the gate driver circuit in the first scan sub-period, so as to display an image.

Abstract translation: 提供了一种显示装置及其驱动方法。 显示装置包括显示面板，栅极驱动电路和源极驱动电路。 在帧周期的功能子周期期间，栅极驱动器电路同时驱动多条栅极线，并且源极驱动电路驱动多条源极线，以便对连接到栅极的多个像素执行功能 线条。 在帧周期的扫描子周期中，栅极驱动电路根据扫描序列驱动栅极线，并且源极驱动电路根据第一扫描子像素中的栅极驱动电路的扫描顺序相应地驱动源极线 周期，以便显示图像。

公开(公告)号：US09299309B2

公开(公告)日：2016-03-29

申请号：US13957440

申请日：2013-08-02

Applicant: NOVATEK Microelectronics Corp.

Inventor： Po-Yu Tseng ,  Chia-Wei Su ,  Po-Hsiang Fang ,  Shun-Hsun Yang ,  Hsin-Hung Lee

IPC: G09G3/36

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

Abstract: The present invention discloses an integrated source driver for a liquid crystal display device. The integrated source driver includes a reference voltage generating circuit, for providing a plurality of adjustable voltage ranges within a supply voltage and a ground level, and a reference voltage selecting circuit, including a plurality of digital to analog converters, for selecting and generating a plurality of internal reference voltages from the plurality of adjustable voltage ranges, respectively. The plurality of adjustable voltage ranges decrease progressively.

Abstract translation: 本发明公开了一种用于液晶显示装置的集成源极驱动器。 集成源极驱动器包括用于在电源电压和地电平内提供多个可调电压范围的参考电压产生电路，以及包括多个数模转换器的参考电压选择电路，用于选择和产生多个 分别来自多个可调电压范围的内部基准电压。 多个可调电压范围逐渐降低。

公开(公告)号：US20140132587A1

公开(公告)日：2014-05-15

申请号：US13957440

申请日：2013-08-02

Applicant: NOVATEK Microelectronics Corp.

Inventor： Po-Yu Tseng ,  Chia-Wei Su ,  Po-Hsiang Fang ,  Shun-Hsun Yang ,  Hsin-Hung Lee

IPC: G09G3/36

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

Abstract: The present invention discloses an integrated source driver for a liquid crystal display device. The integrated source driver includes a reference voltage generating circuit, for providing a plurality of adjustable voltage ranges within a supply voltage and a ground level, and a reference voltage selecting circuit, including a plurality of digital to analog converters, for selecting and generating a plurality of internal reference voltages from the plurality of adjustable voltage ranges, respectively. The plurality of adjustable voltage ranges decrease progressively.

Abstract translation: 本发明公开了一种液晶显示装置的集成源极驱动器。 集成源极驱动器包括用于在电源电压和地电平内提供多个可调电压范围的参考电压产生电路，以及包括多个数模转换器的参考电压选择电路，用于选择和产生多个 分别来自多个可调电压范围的内部基准电压。 多个可调电压范围逐渐降低。

公开(公告)号：US20140111494A1

公开(公告)日：2014-04-24

申请号：US14048013

申请日：2013-10-07

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chia-Wei Su ,  Po-Yu Tseng ,  Shun-Hsun Yang ,  Po-Hsiang Fang

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G2310/0248 ,  G09G2330/023

Abstract: A self-detection charge sharing module for a liquid crystal display device is disclosed. The self-detection charge sharing module includes at least one detecting unit, for detecting a plurality of input voltages of a plurality of operational amplifiers driving a plurality of data line sand a plurality of output voltage of the plurality of data line, to generate at least one detecting result, and at least one charge sharing unit, for conducting connection between at least one first data line and at least one second data line among the plurality of data line when the at least one detecting result indicates at least one corresponding first input voltage and at least one corresponding second input voltage among the plurality of input voltage have opposite voltage variation direction and vary toward each other. The at least one first input voltage and the at least one second input voltage maintain respective polarities.

Abstract translation: 公开了一种用于液晶显示装置的自检电荷共享模块。 自检电荷共享模块包括至少一个检测单元，用于检测多个运算放大器的多个输入电压，该多个运算放大器驱动多条数据线砂多个数据线的多个输出电压，至少产生 一个检测结果和至少一个电荷共享单元，用于当所述至少一个检测结果指示至少一个对应的第一输入电压时，在所述多个数据线中的至少一个第一数据线和至少一个第二数据线之间进行连接 并且所述多个输入电压中的至少一个对应的第二输入电压具有相反的电压变化方向并且彼此变化。 所述至少一个第一输入电压和所述至少一个第二输入电压维持相应的极性。