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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：US07978200B1
公开(公告)日：2011-07-12
申请号：US11648839
申请日：2006-12-28
IPC分类号： G09G5/36
CPC分类号： G09G3/2044 , G09G3/3611
摘要： Stochastic dithering may be used to reduce the size of the frame buffer and the complexity of the D/A Converters (DACs) in the drive circuitry that are used in a video display system. Hardware for stochastic dithering can be simplified when pixel data is presented in raster order. The hardware adds algebraic noise to the image to be dithered, and thresholds the result.
摘要翻译： 可以使用随机抖动来减小帧缓冲器的尺寸以及在视频显示系统中使用的驱动电路中的D / A转换器（DAC）的复杂性。 当以光栅顺序呈现像素数据时，可以简化用于随机抖动的硬件。 硬件为要抖动的图像添加代数噪声，并对结果进行阈值调整。
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