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1. 发明授权

US10355679B2 Display driving circuit, calibration module, and associated calibration method 有权
公开(公告)号：US10355679B2
公开(公告)日：2019-07-16
申请号：US15828618
申请日：2017-12-01
申请人： NOVATEK MICROELECTRONICS CORP.
发明人： Chien-Chuan Huang , Chia-Hsin Tung , Chun-Hung Chen , Hao-Jan Yang , Chieh-Hsiang Chang
IPC分类号： H03K5/00 , H03K5/131 , H03K5/135 , G09G3/20 , G09G5/00 , G09G5/18 , G09F1/10 , G06F1/10
摘要： A display driving circuit, a calibration module, and an associated calibration method are provided. The display driving circuit includes an internal clock circuit and the calibration module. The internal clock circuit generates an internal clock signal. The calibration module includes a counting circuit and a trimming circuit. The counting circuit counts pulses of a reference clock signal to generate a detected reference-clock count and counts pulses of the internal clock signal to generate a detected internal-clock count. The trimming circuit generates a calibration signal to adjust frequency of the internal clock signal when a predefined condition is satisfied. The predefined condition is related to comparison between a first preset count and one of the detected reference-clock count and the detected internal-clock count.

2. 发明授权

US10078998B2 Gamma curve and color coordinate adjusting apparatus and adjusting method thereof 有权
公开(公告)号：US10078998B2
公开(公告)日：2018-09-18
申请号：US14819436
申请日：2015-08-06
申请人： Novatek Microelectronics Corp.
发明人： Po-Shen Chu , Chun-Ta Wu , Hong-Jun Hsiao , Chieh-Hsiang Chang , Feng-Jung Kuo
IPC分类号： G09G5/02 , G09G5/10
CPC分类号： G09G5/02 , G09G5/10 , G09G2320/0666 , G09G2320/0673 , G09G2320/0693
摘要： 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.

3. 发明申请

US20220148505A1 Method for driving display panel and related driver circuit 有权
公开(公告)号：US20220148505A1
公开(公告)日：2022-05-12
申请号：US17519592
申请日：2021-11-05
申请人： NOVATEK Microelectronics Corp.
发明人： Chieh-Hsiang Chang , Wen-Pin Tsai
IPC分类号： G09G3/3233
摘要： 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.

4. 发明申请

US20190173457A1 DISPLAY DRIVING CIRCUIT, CALIBRATION MODULE, AND ASSOCIATED CALIBRATION METHOD 审中-公开
公开(公告)号：US20190173457A1
公开(公告)日：2019-06-06
申请号：US15828618
申请日：2017-12-01
申请人： NOVATEK MICROELECTRONICS CORP.
发明人： Chien-Chuan Huang , Chia-Hsin Tung , Chun-Hung Chen , Hao-Jan Yang , Chieh-Hsiang Chang
IPC分类号： H03K5/00 , H03K5/135 , G09G3/20 , G09G5/18 , H03K5/131 , G09G5/00
CPC分类号： H03K5/00006 , G06F1/10 , G09G3/2096 , G09G5/005 , G09G5/18 , H03K5/131 , H03K5/135
摘要： A display driving circuit, a calibration module, and an associated calibration method are provided. The display driving circuit includes an internal clock circuit and the calibration module. The internal clock circuit generates an internal clock signal. The calibration module includes a counting circuit and a trimming circuit. The counting circuit counts pulses of a reference clock signal to generate a detected reference-clock count and counts pulses of the internal clock signal to generate a detected internal-clock count. The trimming circuit generates a calibration signal to adjust frequency of the internal clock signal when a predefined condition is satisfied. The predefined condition is related to comparison between a first preset count and one of the detected reference-clock count and the detected internal-clock count.

5. 发明授权

US11145257B2 Display device driving method and related driver circuit 有权
公开(公告)号：US11145257B2
公开(公告)日：2021-10-12
申请号：US16779662
申请日：2020-02-02
申请人： NOVATEK Microelectronics Corp.
发明人： Chieh-Hsiang Chang , Shih-Hsiang Pan , Chi-Hung Lin , Wen-Pin Tsai , Huang-Chin Tang
IPC分类号： G09G3/3291 , G09G3/3233
摘要： A display device driving method, suitable for a driver circuit, includes the following steps: determining magnitude of a plurality of data voltages according to received display data, and the plurality of data voltages are configured to be transmitted to a plurality of pixel circuits via a plurality of data lines; comparing the magnitude of the plurality of data voltages to generate a comparison result; and before providing corresponding ones of the plurality of data voltages to a first pixel group arranged at an i-th row of the plurality of pixel circuits, providing a first reset voltage having a value determined according to the comparison result to the plurality of data lines, or providing a second reset voltage to m data lines selected according to the comparison result from the plurality of data lines, i is a positive integer, and m is an integer.

6. 发明授权

US09960151B2 Semiconductor device, display panel assembly, semiconductor structure 有权
公开(公告)号：US09960151B2
公开(公告)日：2018-05-01
申请号：US15226905
申请日：2016-08-02
申请人： Novatek Microelectronics Corp.
发明人： Chieh-Hsiang Chang , Wen-Ching Huang , Kuo-Yuan Lu , Huang-Chin Tang
IPC分类号： G02F1/1345 , H01L25/16 , H01L23/498 , H01L23/00 , H01L23/552 , H01L23/373
CPC分类号： H01L25/167 , G02F1/13452 , G02F1/13458 , H01L23/373 , H01L23/49838 , H01L23/4985 , H01L23/552 , H01L23/562 , H01L24/14 , H01L24/16 , H01L2224/1403 , H01L2224/16165
摘要： A semiconductor device includes a chip, a plurality of first bumps, and a plurality of second bumps. The chip includes an active surface. The first bumps are disposed on the active surface along a first direction. The second bumps are disposed on the active surface along a second direction parallel to the first direction, wherein one of the second bumps is located between adjacent two of the first bumps, a closest distance from the second bumps to the fan-out region is smaller than a closest distance from the first bumps to the fan-out region, and a first width of one of the first bumps is larger than a second width of one of the second bumps.

7. 发明申请

US20180040596A1 SEMICONDUCTOR DEVICE, DISPLAY PANEL ASSEMBLY, SEMICONDUCTOR STRUCTURE 有权
公开(公告)号：US20180040596A1
公开(公告)日：2018-02-08
申请号：US15226905
申请日：2016-08-02
申请人： Novatek Microelectronics Corp.
发明人： Chieh-Hsiang Chang , Wen-Ching Huang , Kuo-Yuan Lu , Huang-Chin Tang
IPC分类号： H01L25/16 , H01L23/373 , H01L23/552 , H01L23/498 , H01L23/00
CPC分类号： H01L25/167 , G02F1/13452 , G02F1/13458 , H01L23/373 , H01L23/49838 , H01L23/4985 , H01L23/552 , H01L23/562 , H01L24/14 , H01L24/16 , H01L2224/1403 , H01L2224/16165
摘要： A semiconductor device includes a chip, a plurality of first bumps, and a plurality of second bumps. The chip includes an active surface. The first bumps are disposed on the active surface along a first direction. The second bumps are disposed on the active surface along a second direction parallel to the first direction, wherein one of the second bumps is located between adjacent two of the first bumps, a closest distance from the second bumps to the fan-out region is smaller than a closest distance from the first bumps to the fan-out region, and a first width of one of the first bumps is larger than a second width of one of the second bumps.

8. 发明授权

US11508302B2 Method for driving display panel and related driver circuit 有权
公开(公告)号：US11508302B2
公开(公告)日：2022-11-22
申请号：US17519592
申请日：2021-11-05
申请人： NOVATEK Microelectronics Corp.
发明人： Chieh-Hsiang Chang , Wen-Pin Tsai
IPC分类号： G09G3/3233
摘要： 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.

9. 发明申请

US20220262320A1 Method for driving display panel and display driver circuit using the same 有权
公开(公告)号：US20220262320A1
公开(公告)日：2022-08-18
申请号：US17673807
申请日：2022-02-17
申请人： NOVATEK Microelectronics Corp.
发明人： Chieh-Hsiang Chang
IPC分类号： G09G3/3291
摘要： 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.

10. 发明申请

US20170039989A1 GAMMA CURVE AND COLOR COORDINATE ADJUSTING APPARATUS AND ADJUSTING METHOD THEREOF 审中-公开
标题翻译：伽马曲线和颜色协调调整装置及其调整方法
公开(公告)号：US20170039989A1
公开(公告)日：2017-02-09
申请号：US14819436
申请日：2015-08-06
申请人： Novatek Microelectronics Corp.
发明人： Po-Shen Chu , Chun-Ta Wu , Hong-Jun Hsiao , Chieh-Hsiang Chang , Feng-Jung Kuo
IPC分类号： G09G5/02 , G09G5/10
CPC分类号： G09G5/02 , G09G5/10 , G09G2320/0666 , G09G2320/0673 , G09G2320/0693
摘要： 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.
摘要翻译：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。

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