A pressure sensing input device
An input device and pressure technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of inability to detect, affect the detection of pressure sensing electrodes, and inaccurate detection of pressure resistance changes. To achieve the effect of increasing the change of resistance value, the effect of precise and more sensitive response
Active Publication Date: 2018-06-22
TPK TOUCH SOLUTIONS (XIAMEN) INC
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[0003] However, due to the limitation of the pressure sensing electrode material, the existing materials will inevitably be affected by the ambient temperature, such as the temperature of the commonly used pressing object-finger, resulting in a certain resistance change, and the temperature caused by the temperature change The change in resistance value greatly affects the detection of the pressing pressure by the pressure sensing electrode, and there may even be a resistance change due to temperature that is much greater than the resistance change due to pressing pressure, resulting in pressure resistance. Change detection is imprecise or even impossible to detect
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[0072] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0073] see Figure 1A , In the first embodiment of the present invention, a pressure sensing input module 10 is provided, which includes a substrate 11 and the first and second surfaces respectively located on the upper and lower surfaces of the substrate 11 (in the present invention, the upper and lower position words are only used to limit the relative positions on the specified view). A pressure sensitive layer 12 and a second pressure sensitive layer 13 . The first pressure-sensitive layer 12 is provided with at least one first pressure-sensitive unit 121, the second pressure-s...
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The invention provides a pressure-sensitive input device, which includes a cover plate, a support layer and a pressure-sensitive input module deposited between the cover plate and the support layer. The pressure-sensitive input module includes a substrate and a first pressure-sensitive layer and a second pressure-sensitive layer disposed on the top surface and the bottomsurface of the substrate. The first pressure-sensitive layer includes at least a first pressure-sensitive unit and the second pressure-sensitive layer includes at least a second pressure-sensitive unit. The first pressure-sensitive layer and the second pressure-sensitive layer are deposited correspondingly and comprise the same material. The cover plate and the pressure-sensitive input module are connected to a first adhesion layer, and the pressure-sensitive input module and the support layer are connected to a second adhesion layer. The average ratio of Young's module of the substrate compared to the first adhesive layer or the second adhesive layer is larger than 10.
Description
【Technical field】 [0001] The invention relates to the field of pressure sensing, in particular to a pressure sensing input device. 【Background technique】 [0002] With the continuous updating of touch input technology in recent years, flat touch panels have become the first choice for input devices. Recently, a pressure sensing device that brings a new touch experience has caused a wave of enthusiasm in the field of touch input devices. This pressure sensing device can detect the change in resistance of the pressure sensing unit after pressing, Determining the magnitude of the pressing pressure can be used alone in the field of touch input devices that only need to detect the magnitude of the pressure, and can also be combined with the traditional flat touch panel to take into account the detection of two-dimensional coordinates and three-dimensional touch pressure. [0003] However, due to the limitation of the pressure sensing electrode material, the existing materials wi...
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IPC IPC(8): G06F3/041
CPCG06F3/04144
Inventor 蒋承忠陈风牟方胜李裕文
Owner TPK TOUCH SOLUTIONS (XIAMEN) INC