INPUT INTERFACE DEVICE WITH SEMICONDUCTOR STRAIN GAGE

    公开(公告)号:US20190257704A1

    公开(公告)日:2019-08-22

    申请号:US15903005

    申请日:2018-02-22

    IPC分类号: G01L1/22 H05K1/18 H05K1/02

    摘要: The invention provides for an interface device that measures strain on a specific area of the printed circuit board. The measurements are converted into an electrical signal and sent for processing. The processing results in the apparatus performing a desired function.The interface device includes a printed circuit board. The printed circuit board comprises a plurality of layers, including a conductive layer. The interface device further includes a strain sensing device. The strain sensing device is mounted on the printed circuit board and includes a substrate, a strain sensing element, and associated circuitry. In some instances, the strain sensing device includes one strain sensing element and in other instances multiple strain sensing elements can also be used. In one embodiment, the strain sensing device can include a piezoresistive strain gage combined with signal conditioning circuitry such that a single electronic component can be mounted on the printed circuit board for reduced cost and improved signal-to-noise performance.In operation, a user or another device applies force on the printed circuit board in the area of the strain sensing device. The strain sensitive element deforms in response to the applied force or strain on the printed circuit board. The deformation results in the change of resistance or conductivity of the strain sensitive element. The associated circuitry, which can be a signal conditioning circuit, converts the change in resistance or conductivity into a digital signal.Once the conversion occurs, the associated circuitry uses the conductive layer of the printed circuit board to communicate the digital signal to either the processor or the processing circuit of the electronic apparatus. The processor or processing circuit receives the digital signal and responds by performing a desired action.In one instance the interface device may be used to measure the magnitude of the force applied by a finger pressing on the touch screen of an electronic apparatus such as a cell phone. The magnitude of the applied force can then be used to control, the operation of the cell phone. A high magnitude force would result in a higher strain being sensed and can cause the apparatus to operate in one way, whereas a low magnitude force would result in a lower strain being sensed and can cause the apparatus to operate in another way, e.g., in a mobile phone environment where an application is used to draw a picture, a light force applied to the touch screen could be processed to result in a thin line being drawn and a stronger force could be processed to result in a wider line being drawn.In another instance the interface device may be used to measure the magnitude of the force applied to a control toggle on the steering wheel of a car. The toggle may be used to control the intensity of the sound emitted from the audio system in the car. A high magnitude force could be processed to cause the intensity of the sound to change rapidly whereas a low magnitude force could be processed to cause the intensity of the sound to change slowly.

    Systems and methods for MEMS light modulator arrays with reduced acoustic emission
    44.
    发明授权
    Systems and methods for MEMS light modulator arrays with reduced acoustic emission 有权
    具有减少声发射的MEMS光调制器阵列的系统和方法

    公开(公告)号:US09291813B2

    公开(公告)日:2016-03-22

    申请号:US13330924

    申请日:2011-12-20

    IPC分类号: G02B26/02 G09G3/34

    摘要: Systems and methods for a display having an array of pixels, a substrate, and a control matrix formed on the substrate are described. The array of pixels includes mechanical light modulators that can be referred to as micro-electro-mechanical or MEMS light modulators. The MEMS light modulators may be shutter-based light modulators, and an array of apertures may be formed on the substrate corresponding spatially to the shutters in the array of shutter-based light modulators. Each modulator is configured to be driven from a-light-blocking state to a-light-transmissive state through a movement direction. The array of light modulators are arranged to reduce the correlations in movement directions of neighboring pixels, thereby reducing the amplitude of acoustic emissions from the display.

    摘要翻译: 描述了具有形成在基板上的像素阵列,基板和控制矩阵的显示器的系统和方法。 像素阵列包括可被称为微机电或MEMS光调制器的机械光调制器。 MEMS光调制器可以是基于快门的光调制器,并且可以在基板上形成孔阵列,空间上对应于基于快门的光调制器阵列中的百叶窗。 每个调制器被配置为通过移动方向从遮光状态驱动到透光状态。 光调制器的阵列被布置为减少相邻像素的移动方向上的相关性,从而减少来自显示器的声发射的幅度。

    Methods for manufacturing fluid-filled MEMS displays
    46.
    发明授权
    Methods for manufacturing fluid-filled MEMS displays 有权
    制造流体充填MEMS显示器的方法

    公开(公告)号:US09176318B2

    公开(公告)日:2015-11-03

    申请号:US11975411

    申请日:2007-10-19

    IPC分类号: B29C65/00 G02B26/08

    CPC分类号: G02B26/0833

    摘要: This invention relates to methods of manufacturing fluid-filled MEMS displays, where the fluid is sealed in the display assembly and substantially surrounds the moving components of the display to reduce the effects of stiction and to improve the optical and electromechanical performance of the display.

    摘要翻译: 本发明涉及制造流体填充的MEMS显示器的方法,其中流体被密封在显示器组件中并且基本上围绕显示器的移动部件以减少静摩擦的影响并改善显示器的光学和机电性能。