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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
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公开(公告)号：US12051381B2
公开(公告)日：2024-07-30
申请号：US18167896
申请日：2023-02-13
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Yang Tsai , Hung-Ho Huang , Tzong-Honge Shieh , Chieh-An Lin , Po-Hsiang Fang , Jhih-Siou Cheng
IPC: G09G3/34
CPC classification number: G09G3/3406 , G09G2310/0237 , G09G2320/0261 , G09G2320/064 , G09G2330/021 , G09G2370/00
Abstract: The disclosure provides a control method of a display driver. The control method includes receiving address information and defining an IC address according to the address information. The IC address includes n bits representing k zones, and n and k are positive integers. The control method further includes receiving the IC address, a black frame data signal and a pulse-width modulation (PWM) signal, and turning on or off the plurality of LEDs in the corresponding zone according to toggle of bit in the black frame data signal. Each bit in the black frame data signal indicates that a plurality of LEDs in a zone among the k zones are turned on or off.
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公开(公告)号：US20240096289A1
公开(公告)日：2024-03-21
申请号：US18167896
申请日：2023-02-13
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Yang Tsai , Hung-Ho Huang , Tzong-Honge Shieh , Chieh-An Lin , Po-Hsiang Fang , Jhih-Siou Cheng
IPC: G09G3/34
CPC classification number: G09G3/3406 , G09G2310/0237 , G09G2320/0261 , G09G2320/064 , G09G2330/021 , G09G2370/00
Abstract: The disclosure provides a control method of a display driver. The control method includes receiving address information and defining an IC address according to the address information. The IC address includes n bits representing k zones, and n and k are positive integers. The control method further includes receiving the IC address, a black frame data signal and a pulse-width modulation (PWM) signal, and turning on or off the plurality of LEDs in the corresponding zone according to toggle of bit in the black frame data signal. Each bit in the black frame data signal indicates that a plurality of LEDs in a zone among the k zones are turned on or off.
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公开(公告)号：US11651746B2
公开(公告)日：2023-05-16
申请号：US17855606
申请日：2022-06-30
Applicant: Novatek Microelectronics Corp.
Inventor： Jhih-Siou Cheng , Hung-Ho Huang , Kang-Fan Yeh , Po-Hsiang Fang
CPC classification number: G09G3/3426 , G09G3/36 , G09G2310/0297 , G09G2320/0646 , G09G2360/16
Abstract: A backlight driving device and an operating method thereof are provided to drive multiple backlight zones of a backlight panel. The backlight driving device includes an interface circuit and a driving circuit. The interface circuit receives main backlight data corresponding to a first backlight zone from a former stage device. The driving circuit drives the first backlight zone according to a main current level in a display refresh period of a backlight frame period, does not drive the first backlight zone in a demotion blur period which is prior to the display refresh period, and drives the first backlight zone according to a compensation current level in a vertical blanking period which succeeds the display refresh period. The driving circuit determines the main current level according to the main backlight data, and the compensation current level is lower than the main current level.
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公开(公告)号：US11521542B2
公开(公告)日：2022-12-06
申请号：US16953364
申请日：2020-11-20
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hsu-Chih Wei , Po-Hsiang Fang , Keko-Chun Liang , Che-Wei Yeh , Ju-Lin Huang
Abstract: The present disclosure provides a method for a display driver system and a display driver system. The method comprises: the control circuit transmitting a global signal and a first signal for a LED driver circuit in each stage to a first-stage LED driver circuit, wherein the global signal includes an command for indicating an operation mode of the LED driver circuit in each stage; the LED driver circuit in each stage determining the operation mode corresponding to the command according to the global signal, identifying a corresponding first signal of the LED driver circuit in the stage, and operating according to the determined operation mode and the corresponding first signal; and the LED driver circuit in each stage except for last stage transmitting the global signal to the LED driver circuit in its next stage, and in response to a completion of operation according to the determined operation mode and the corresponding first signal, transmitting the first signal for the LED driver circuit in each of sequential stages to the LED driver circuit in its next stage.
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Patent Agency Ranking
公开(公告)号：US11282438B2
公开(公告)日：2022-03-22
申请号：US16919069
申请日：2020-07-01
Applicant: Novatek Microelectronics Corp.
Inventor： Chun-Wei Kang , Jhih-Siou Cheng , Chun-Fu Lin , Po-Hsiang Fang , Ju-Lin Huang
IPC: G09G3/32
Abstract: A driver circuit configured to receive a display data and drive a display panel is provided. The display panel includes a plurality of light-emitting diode devices according to the display data. The driver circuit includes a data driver. The data driver is configured to output driving signals to drive the light-emitting diode devices according to the display data and operate in different operation modes according to a control signal. The data driver includes a plurality of output channels. The output channels output the driving signals to drive the light-emitting diode devices via respective output terminals of the driver circuit. An assignment relationship of the display data and the output channels is different in the different operation modes. A display apparatus including the driver circuit is also provided.
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公开(公告)号：US10163416B2
公开(公告)日：2018-12-25
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
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.
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公开(公告)号：US09875711B2
公开(公告)日：2018-01-23
申请号：US15016295
申请日：2016-02-05
Applicant: Novatek Microelectronics Corp.
Inventor： Po-Hsiang Fang , Jhih-Siou Cheng
IPC: G09G3/36
CPC classification number: G09G3/3677 , G09G2300/0408 , G09G2310/0251 , G09G2310/0286 , G09G2310/08
Abstract: A gate driver and an operation method thereof are provided. The gate driver includes clock transmission wires and driving circuits. The clock transmission wires are configured to transmit clock signals having different phases. Each of the driving circuits has a clock input terminal, a pre-charge terminal, a discharge control terminal and an output terminal. The output terminals are configured to drive gate lines of a display panel. The driving circuits are grouped into several driving circuit groups. The driving circuits belonging to a first driving circuit group among the driving circuit groups are called first driving circuits. The clock input terminals of the first driving circuits are coupled to different transmission wires among the clock transmission wires. The pre-charge terminals of the first driving circuits commonly receive a first pre-charge signal. The discharge control terminals of the first driving circuits commonly receive a first discharge control signal.
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公开(公告)号：US09396695B2
公开(公告)日：2016-07-19
申请号：US14561200
申请日：2014-12-04
Applicant: Novatek Microelectronics Corp.
Inventor： Jr-Ching Lin , Hsin-Hung Lee , Chia-Wei Su , Po-Yu Tseng , Shun-Hsun Yang , Po-Hsiang Fang
CPC classification number: G09G3/3696 , G09G1/005 , G09G3/3688 , G09G2320/0673
Abstract: A source driver includes a first drive channel circuit, a voltage controller and a first programmable voltage buffer unit. The first drive channel circuit receives a first pixel data and a first reference voltage group, for driving the display device. The voltage controller receives a voltage command during a line data transmitting period, a horizontal blanking period or a vertical blanking period for generating a first reference voltage configuration data. The first programmable voltage buffer unit is coupled to the voltage controller and the first drive channel circuit, and receives the first reference voltage configuration data for applying the first reference voltage group to the first drive channel circuit. Furthermore, a method for driving a display device is also provided.
Abstract translation: 源驱动器包括第一驱动通道电路，电压控制器和第一可编程电压缓冲器单元。 第一驱动通道电路接收第一像素数据和第一参考电压组，用于驱动显示装置。 电压控制器在行数据发送期间，水平消隐期间或垂直消隐期间接收电压指令，以产生第一参考电压配置数据。 第一可编程电压缓冲器单元耦合到电压控制器和第一驱动通道电路，并且接收用于将第一参考电压组施加到第一驱动通道电路的第一参考电压配置数据。 此外，还提供了一种用于驱动显示装置的方法。
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公开(公告)号：US09123275B2
公开(公告)日：2015-09-01
申请号：US13778122
申请日：2013-02-27
Applicant: Novatek Microelectronics Corp.
Inventor： Shun-Hsun Yang , Chia-Wei Su , Po-Yu Tseng , Po-Hsiang Fang , Hsin-Hung Lee
CPC classification number: G09G3/006 , G09G3/3688 , G09G2330/12 , G09G2370/08
Abstract: A method for displaying error rates of data channels of a display is provided. A timing controller of the display repeatedly transmits a test signal with a specific format to a first and a second source drivers of the display via a first and a second data channels of the display. During testing, a first number and a second number of times of the first source driver and the second source driver determining that the received test signal does not have the specific format are counted respectively. The first and the second source drivers control displaying of a first area and a second area of a panel of the display respectively according to the counted first and second numbers of times. Accordingly, the error rates of the data channels are presented on the panel of the display in a way that the error rates could be recognized more easily.
Abstract translation: 提供了一种用于显示显示器的数据通道的错误率的方法。 显示器的定时控制器经由显示器的第一和第二数据通道重复地将特定格式的测试信号发送到显示器的第一和第二源驱动器。 在测试期间，分别计数第一源驱动器和第二源驱动器的第一次数和第二次数，以确定所接收的测试信号不具有特定格式。 第一和第二源驱动器分别根据计数的第一和第二次数来分别显示显示器的面板的第一区域和第二区域。 因此，数据通道的错误率以更容易识别错误率的方式呈现在显示器的面板上。
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