Display device with mechanical sensing function

Abstract

The invention relates to a display device with the mechanical sensing function. The display device comprises a display screen and a mechanical sensing layer. The mechanical sensing layer comprises a plurality of mechanical sensing units. The mechanical sensing layer is arranged on the inner side of the display screen. All the mechanical sensing units are distributed in a display area of the display screen in a two-dimension planar mode. When the display screen is pressed through fingers, the mechanical sensing unit located at the position corresponding to the pressed position can sense the local pressing force of the fingers, use the position of the mechanical sensing unit as first coordinate information of the pressed position and output the first coordinate information. The pressing force can be exerted on the corresponding mechanical sensing unit after perpendicularly penetrating the display screen, and therefore the sensitivity and the accuracy of detection of the pressing force by the corresponding mechanical sensing unit are both high. The mechanical sensing layer has the mechanical sensing function and the more accurate pressing positioning function and can provide more abundant finger pressing information for a system; besides, the function of detection of multi-finger pressing can be achieved.

Description

technical field [0001] The invention relates to a display device, in particular to a display device with a mechanical sensing function. Background technique [0002] At the end of January 2014, the US Patent and Trademark Office published a patent application from Apple. The patent application describes a device with a built-in pressure sensor. [0003] Such as figure 1 with figure 2 The patent application, titled "Gesture and Touch Input via Pressure Sensing," as shown, describes a device similar to the normal display in iPhones and iPads, but with three or four When a finger presses the screen, each sensor will obtain a different pressure value, so the approximate pressing force and pressing position of the finger can be determined through calculation, thereby realizing a display device with a mechanical sensing function. For example, when the user applies pressure on the upper right corner of the device, the sensor located in this corner will obtain a specific pressu...

AI Technical Summary

Problems solved by technology

[0004] However, this kind of display device with mechanical sensing function, because its pressure sensors are generally arranged on the four ends of the screen, it is generally far away from the pressing position of the finger on the screen, and the pressing force of the finger on the screen generally needs to be displayed. The lateral conduction of each part of the screen can finally reach these mechanical sensors, while the lateral conduction of the display screen is very unstable, which will lead to serious deviations in the final calculated pressing force and pressing position

[0005] In addition, this kind of mechanical sensing device can only calculate the pressing force and pressing position of one pressing point. If there are multiple fingers pressing on the screen, the system will not be able to recognize it, thus giving wrong results.

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