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公开(公告)号:US20130057512A1
公开(公告)日:2013-03-07
申请号:US13606547
申请日:2012-09-07
IPC分类号: G06F3/044
CPC分类号: G06F3/044 , G06F3/0412 , G06F3/0416 , G09G5/18
摘要: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving common electrodes corresponding to pixels in a display line. In general, the input devices drive each electrode until each display line (and each pixel) of a display frame is updated. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a proximity sensing area. To do this, the input device may interleave periods of capacitive sensing between periods of updating the display based on a display frame. For example, the input device may update the first half of display lines of the display screen, pause display updating, perform capacitive sensing, and finish updating the rest of the display lines. Further still, the input device may use common electrodes for both updating the display and performing capacitive sensing.
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公开(公告)号:US09041685B2
公开(公告)日:2015-05-26
申请号:US13606547
申请日:2012-09-07
CPC分类号: G06F3/044 , G06F3/0412 , G06F3/0416 , G09G5/18
摘要: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving common electrodes corresponding to pixels in a display line. In general, the input devices drive each electrode until each display line (and each pixel) of a display frame is updated. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a proximity sensing area. To do this, the input device may interleave periods of capacitive sensing between periods of updating the display based on a display frame. For example, the input device may update the first half of display lines of the display screen, pause display updating, perform capacitive sensing, and finish updating the rest of the display lines. Further still, the input device may use common electrodes for both updating the display and performing capacitive sensing.
摘要翻译: 本发明的实施例通常提供具有显示屏幕的输入设备,其通过选择性地驱动对应于显示行中的像素的公共电极来周期性地更新(刷新)屏幕。 通常,输入设备驱动每个电极,直到显示框架的每个显示线(和每个像素)被更新。 除了更新显示器之外,输入设备可以使用显示屏幕来执行电容感测作为接近感测区域。 为此,输入设备可以基于显示帧来交织更新显示器的时段之间的电容感测周期。 例如,输入装置可以更新显示画面的显示行的前半部分,暂停显示更新,执行电容感测,并且更新其余的显示行。 此外,输入装置可以使用公共电极来更新显示和执行电容感测。
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公开(公告)号:US20140002410A1
公开(公告)日:2014-01-02
申请号:US13539145
申请日:2012-06-29
申请人: Jeffrey Lillie , John Childs , Christopher Ludden
发明人: Jeffrey Lillie , John Childs , Christopher Ludden
IPC分类号: G06F3/044
CPC分类号: G06F3/044 , G06F1/3262 , G06F3/041 , G06F3/0416 , G06F3/0418 , G06F3/04883 , G06F2203/04107
摘要: Circuit architecture is provided to allow for flexible touch transmit signaling of a display device having an integrated capacitive sensing device. The circuit architecture includes an addressable selection module for non-sequentially selecting a plurality of transmitter electrodes to be driven for capacitive sensing. The circuit architecture supports a high voltage drive scheme that provides voltage sources for capacitive sensing and for updating the display device. The circuit architecture also supports a low voltage (logic level) drive scheme that provides a logic signal to be used by TFT circuitry to drive voltage signals for capacitive sensing and for updating the display device.
摘要翻译: 提供电路架构以允许具有集成电容感测装置的显示装置的灵活的触摸发送信令。 电路架构包括可寻址选择模块,用于非顺序地选择要驱动用于电容感测的多个发射器电极。 电路架构支持高电压驱动方案,为电容感测和更新显示设备提供电压源。 电路架构还支持低电压(逻辑电平)驱动方案,其提供由TFT电路用于驱动用于电容感测和更新显示装置的电压信号的逻辑信号。
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公开(公告)号:US20080303750A1
公开(公告)日:2008-12-11
申请号:US12128132
申请日:2008-05-28
申请人: Christopher Ludden , John Childs
发明人: Christopher Ludden , John Childs
IPC分类号: G09G3/20
CPC分类号: G09G3/2092 , G09G3/3688 , G09G3/3696 , G09G2310/04 , G09G2320/0276
摘要: Data enable learning is provided for a video display driver in which a data enable signal and pixel clock exclusive of their associated horizontal and vertical synchronization signals for a digital video signal are used to facilitate generating of signals corresponding to the associated horizontal and vertical synchronization signals.
摘要翻译: 为视频显示驱动器提供了数据使能学习,其中使用数据使能信号和与数字视频信号相关联的其相关的水平和垂直同步信号的像素时钟来促进对应于相关联的水平和垂直同步信号的信号的产生。
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公开(公告)号:US20080303836A1
公开(公告)日:2008-12-11
申请号:US12128155
申请日:2008-05-28
申请人: Christopher Ludden , John Childs , Jeff Lillie , Jim Prowak , Jeff Small
发明人: Christopher Ludden , John Childs , Jeff Lillie , Jim Prowak , Jeff Small
IPC分类号: G09G5/39
CPC分类号: G09G5/006 , G06F3/14 , G09G3/2092 , G09G3/3611 , G09G3/3614 , G09G3/3648 , G09G3/3688 , G09G3/3696 , G09G2310/0218 , G09G2310/0232 , G09G2310/0245 , G09G2310/027 , G09G2310/0297 , G09G2310/08 , G09G2320/0247 , G09G2320/0276 , G09G2320/0673 , G09G2330/021 , G09G2330/028 , G09G2340/02 , G09G2340/0407 , G09G2340/0428 , G09G2340/0464 , G09G2340/10 , G09G2360/18
摘要: Partial memory control for a video display driver in which data storage is provided for storing and providing a plurality of video pixel data having selectable ones of a plurality of pixel color depths to be displayed by a plurality of video displays having a plurality of mutually distinct dimensions.
摘要翻译: 用于视频显示驱动器的部分存储器控制,其中提供数据存储用于存储和提供多个具有多个像素颜色深度的可选择的像素颜色深度的视频像素数据,以由具有多个彼此不同的尺寸的多个视频显示器显示 。
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公开(公告)号:US20080303767A1
公开(公告)日:2008-12-11
申请号:US12128169
申请日:2008-05-28
申请人: Christopher Ludden , Imre Knausz
发明人: Christopher Ludden , Imre Knausz
CPC分类号: G09G3/3696 , G09G3/3607 , G09G3/3688 , G09G2310/0297 , G09G2320/0276 , G09G2320/0673 , G09G2330/021 , H04N9/69
摘要: Voltage generator circuitry for providing a plurality of voltages for use in gamma compensation of a video signal.
摘要翻译: 电压发生器电路,用于提供用于视频信号的伽马补偿的多个电压。
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公开(公告)号:US20070018928A1
公开(公告)日:2007-01-25
申请号:US11470247
申请日:2006-09-05
申请人: Christopher Ludden
发明人: Christopher Ludden
IPC分类号: G09G3/36
CPC分类号: G09G3/3614 , G09G3/3648 , G09G3/3677 , G09G2310/0224 , G09G2310/0289 , G09G2330/021
摘要: A method is arranged to process a frame for an LCD with a modified polarity pattern. The pattern employs a polarity reversal scheme that results in line inversion and/or dot inversion patterns that are observable by pixel locations within the frame. The drive polarity for the column drivers in the LCD is toggled according to the modified polarity pattern. The scanning sequence for each row on the display is modified for cooperation with the pattern. A first subframe is scanned during a first interval while applying a first set of drive polarities. A second subframe is scanned during a second interval that is non-overlapping with the first time interval. The application of the method enables the column drivers in the LCD to operate with reduced power while retaining the benefits of line and dot inversion techniques.
摘要翻译: 一种用于处理具有修改的极性图案的LCD的框架的方法。 该模式采用极性反转方案,其导致由框架内的像素位置可观察到的线反转和/或点反转模式。 LCD中的列驱动器的驱动极性根据修改的极性模式切换。 修改显示器上每一行的扫描顺序,以与图案协作。 在施加第一组驱动极性的同时,在第一间隔期间扫描第一子帧。 在与第一时间间隔不重叠的第二间隔期间扫描第二子帧。 该方法的应用使得LCD中的列驱动器能够以较低的功率运行,同时保留了线和点反转技术的优点。
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公开(公告)号:US09264682B2
公开(公告)日:2016-02-16
申请号:US13559743
申请日:2012-07-27
申请人: Christopher Ludden , Imre Knausz
发明人: Christopher Ludden , Imre Knausz
CPC分类号: G09G3/3696 , G09G3/3607 , G09G3/3688 , G09G2310/0297 , G09G2320/0276 , G09G2320/0673 , G09G2330/021 , H04N9/69
摘要: An apparatus is provided, which includes a driving circuit. The driving circuit includes a gamma reference source and a liquid crystal display (LCD) source driver circuit. A first resistor string is provided. A plurality of digital-to-analog converters (DACs) are provided, where each DAC is coupled to the first resistor string. An output circuit having a second resistor string is provided so as to output a plurality of reference voltages. The LCD source driver circuit is coupled to the output circuit of the gamma reference source. The source driver is configured to receive the plurality of reference voltages, wherein the plurality of reference voltages are arranged in a first sequence during a positive polarity cycle and are arranged in a second sequence during a negative polarity cycle. The fifth sequence is an inverse of the fourth sequence.
摘要翻译: 提供了一种装置,其包括驱动电路。 驱动电路包括伽马参考源和液晶显示器(LCD)源极驱动电路。 提供第一个电阻串。 提供了多个数模转换器(DAC),其中每个DAC耦合到第一电阻器串。 具有第二电阻串的输出电路被设置为输出多个参考电压。 LCD源极驱动电路耦合到伽马参考源的输出电路。 源极驱动器被配置为接收多个参考电压,其中多个参考电压在正极性周期期间以第一序列排列,并且在负极性周期期间以第二序列排列。 第五个序列是第四个序列的倒数。
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公开(公告)号:US20130021229A1
公开(公告)日:2013-01-24
申请号:US13559743
申请日:2012-07-27
申请人: Christopher Ludden , Imre Knausz
发明人: Christopher Ludden , Imre Knausz
IPC分类号: G09G3/36
CPC分类号: G09G3/3696 , G09G3/3607 , G09G3/3688 , G09G2310/0297 , G09G2320/0276 , G09G2320/0673 , G09G2330/021 , H04N9/69
摘要: An apparatus is provided, which includes a driving circuit. The driving circuit includes a gamma reference source and a liquid crystal display (LCD) source driver circuit. A first resistor string is provided. A plurality of digital-to-analog converters (DACs) are provided, where each DAC is coupled to the first resistor string. An output circuit having a second resistor string is provided so as to output a plurality of reference voltages. The LCD source driver circuit is coupled to the output circuit of the gamma reference source. The source driver is configured to receive the plurality of reference voltages, wherein the plurality of reference voltages are arranged in a first sequence during a positive polarity cycle and are arranged in a second sequence during a negative polarity cycle. The fifth sequence is an inverse of the fourth sequence.
摘要翻译: 提供了一种装置,其包括驱动电路。 驱动电路包括伽马参考源和液晶显示器(LCD)源极驱动电路。 提供第一个电阻串。 提供了多个数模转换器(DAC),其中每个DAC耦合到第一电阻器串。 具有第二电阻串的输出电路被设置为输出多个参考电压。 LCD源极驱动电路耦合到伽马参考源的输出电路。 源极驱动器被配置为接收多个参考电压,其中多个参考电压在正极性周期期间以第一序列排列,并且在负极性周期期间以第二序列排列。 第五个序列是第四个序列的倒数。
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