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11.发明申请DISPLAY DRIVER INTEGRATED CIRCUIT WITH DISPLAY DATA GENERATION FUNCTION AND APPARATUS THEREWITH 审中-公开具有显示数据生成功能的显示驱动器集成电路及其设备公开(公告)号：US20160133231A1
公开(公告)日：2016-05-12
申请号：US14918549
申请日：2015-10-20
Applicant: Novatek Microelectronics Corp.
Inventor： Shang-I Liu , Li-Chun Huang , Ching-Chun Lin , Chia-Hsin Tung , Chien-Yu Chen , Hung-Wei Lin
IPC: G09G5/18
CPC classification number: G09G5/14 , G09G5/003 , G09G2330/021 , G09G2340/12 , G09G2360/18
Abstract: In the disclosure, a display driver integrated circuit (DDIC) configured to drive a display panel and an electronic apparatus having the DDIC would generate display data to constantly update information displayed on the display panel even when a processor is in a power save mode. The DDIC includes a first input terminal, a memory device, an information rendering unit, an information overlay unit, and a source driver. The first input terminal receives a subscribed signal. The memory device stores a background image. The information rendering unit is coupled to the first input terminal of the DDIC to receive the subscribed signal and renders subscribed information according to the subscribed signal. The information overlay unit receives the subscribed information from the information overlay unit and the background image from the memory device, and accordingly, the display data is generated without obtaining frame data from an external processor.
Abstract translation: 在本公开中，即使处理器处于省电模式，配置为驱动显示面板的显示驱动器集成电路（DDIC）和具有DDIC的电子设备也将产生显示数据，以不断地更新显示在显示面板上的信息。 DDIC包括第一输入端，存储器件，信息渲染单元，信息覆盖单元和源驱动器。 第一输入端接收订阅信号。 存储设备存储背景图像。 信息渲染单元耦合到DDIC的第一输入端以接收订阅的信号，并根据订阅的信号呈现订阅的信息。 信息叠加单元从信息叠加单元接收订阅信息和来自存储设备的背景图像，因此，在不从外部处理器获取帧数据的情况下生成显示数据。
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公开(公告)号：US20200152104A1
公开(公告)日：2020-05-14
申请号：US16745315
申请日：2020-01-16
Applicant: Novatek Microelectronics Corp.
Inventor： Chun-Chieh Lin , Shang-I Liu , Hua-Gang Chang
IPC: G09G3/00 , G09G3/3266 , G09G3/3275
Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.
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公开(公告)号：US20190139471A1
公开(公告)日：2019-05-09
申请号：US16242004
申请日：2019-01-08
Applicant: Novatek Microelectronics Corp.
Inventor： Chun-Chieh Lin , Shang-I Liu , Hua-Gang Chang
IPC: G09G3/00 , G09G3/3275 , G09G3/3266
CPC classification number: G09G3/006 , G09G3/3266 , G09G3/3275 , G09G3/3291 , G09G2300/0814 , G09G2310/0286 , G09G2320/041 , G09G2330/12
Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.
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公开(公告)号：US20180068618A1
公开(公告)日：2018-03-08
申请号：US15259052
申请日：2016-09-08
Applicant: Novatek Microelectronics Corp.
Inventor： Chun-Chieh Lin , Shang-I Liu , Hua-Gang Chang
IPC: G09G3/3258 , G09G3/3275 , G09G3/3266
CPC classification number: G09G3/3258 , G09G3/3233 , G09G3/3266 , G09G3/3275 , G09G2300/0426 , G09G2300/043 , G09G2300/0819 , G09G2310/0286 , G09G2310/08 , G09G2320/043 , G09G2320/045
Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a gate driving circuit and a sensing circuit. The gate driving circuit may scan the scan-lines during a plurality of scan-line periods within a frame period. The sensing circuit is coupled to a plurality of pixel circuits. A corresponding scan-line period of the scan-line periods is divided into a test data period and a display data period. In the test data period, the sensing circuit controls a corresponding pixel circuit to receive the test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the display data period, the sensing circuit controls the corresponding pixel circuit to receive the display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.
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公开(公告)号：US20170243331A1
公开(公告)日：2017-08-24
申请号：US15051673
申请日：2016-02-24
Applicant: NOVATEK Microelectronics Corp.
Inventor： Kuei-Chung Chang , Shang-I Liu , Pu-Hsien Chang
CPC classification number: G06T5/003 , G06T7/20 , G06T9/00 , G06T2207/20201 , G09G3/3648 , G09G2320/0252 , G09G2320/106 , G09G2340/0435
Abstract: A compensation method for a driving circuit of a display device includes generating a motion vector between a previous frame and a current frame subsequent to the previous frame; generating a first estimation frame according to the current frame and the motion vector; adjusting the first estimation frame according to the difference between the current frame and the first estimation frame, to generate a first overdrive frame; and inserting the first overdrive frame between the current frame and a next frame subsequent to the current frame.
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Patent Agency Ranking
公开(公告)号：US11030928B2
公开(公告)日：2021-06-08
申请号：US16745315
申请日：2020-01-16
Applicant: Novatek Microelectronics Corp.
Inventor： Chun-Chieh Lin , Shang-I Liu , Hua-Gang Chang
IPC: G09G3/00 , G09G3/3275 , G09G3/3266 , G09G3/3291
Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.
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公开(公告)号：US10586480B2
公开(公告)日：2020-03-10
申请号：US16566870
申请日：2019-09-10
Applicant: Novatek Microelectronics Corp.
Inventor： Chun-Chieh Lin , Shang-I Liu , Hua-Gang Chang
IPC: G09G3/00 , G09G3/3275 , G09G3/3266
Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.
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公开(公告)号：US10224886B2
公开(公告)日：2019-03-05
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
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.
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公开(公告)号：US10083498B2
公开(公告)日：2018-09-25
申请号：US15051673
申请日：2016-02-24
Applicant: NOVATEK Microelectronics Corp.
Inventor： Kuei-Chung Chang , Shang-I Liu , Pu-Hsien Chang
CPC classification number: G06T5/003 , G06T7/20 , G06T9/00 , G06T2207/20201 , G09G3/3648 , G09G2320/0252 , G09G2320/106 , G09G2340/0435
Abstract: A compensation method for a driving circuit of a display device includes generating a motion vector between a previous frame and a current frame subsequent to the previous frame; generating a first estimation frame according to the current frame and the motion vector; adjusting the first estimation frame according to the difference between the current frame and the first estimation frame, to generate a first overdrive frame; and inserting the first overdrive frame between the current frame and a next frame subsequent to the current frame.
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20.发明申请公开(公告)号：US20160189682A1
公开(公告)日：2016-06-30
申请号：US14644215
申请日：2015-03-11
Applicant: Novatek Microelectronics Corp.
Inventor： Shang-I Liu
CPC classification number: G09G5/14 , G09G3/34 , G09G5/10 , G09G2320/0653 , G09G2330/021 , G09G2340/0435
Abstract: A display apparatus and a method for controlling a refresh frequency thereof are provided. The method includes: dividing a display image into a plurality of sub-display images; calculating a plurality of refresh frequency request values respectively corresponding to the sub-display images according to a plurality of patterns respectively corresponding to the sub-display images; and, calculating a refresh frequency of the display image according to the refresh frequency request values.
Abstract translation: 提供了一种用于控制其刷新频率的显示装置和方法。 该方法包括：将显示图像分割成多个子显示图像; 根据与所述副显示图像分别对应的多个图案，分别计算与所述副显示图像对应的多个刷新频率请求值; 以及根据刷新频率请求值计算显示图像的刷新频率。
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