Touch screen with force feedback system

Abstract

The invention discloses a touch screen with a force feedback system. The touch screen is provided with a touch control layer and a covering plate used for protecting the touch control layer, and also comprises a magnetic fluid layer and an electromagnetic induction layer, wherein the electromagnetic induction layer is electrically connected with the touch control layer; the magnetic fluid layer is arranged at the upper side of the covering plate; the electromagnetic induction layer is arranged at the lower side of the magnetic fluid layer; and the electromagnetic induction layer can be electrically conducted when the touch control layer detects the touch, so that the magnetic fluid layer deforms. After a user touches the magnetic fluid layer, the touch screen can position the touch position of the user; a corresponding electromagnetic coil on the electromagnetic induction layer is found according to the positioning result and is then charged; the electromagnetic coil generates a strong magnetic field through momentary current; the magnetic field generates a magnetization effect on magnetic fluid, so that nanometer microparticles in the magnetic fluid are magnetized to form magnetic microparticles; the magnetic microparticles are mutually repelled to generate relative movement, so that the volume of the magnetic fluid in the touch position is expanded and increased, an acting force is given to the user, and the force feedback is realized; the touch control feeling is more real; and the touch control experience of the user is improved.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a touch screen with a force feedback system. Background technique [0002] The touch screen used in the prior art only has the function of touch positioning, that is, it can only provide visual feedback through the display screen. When the picture on the screen of the display screen does not change much or when typing, the user sometimes is not sure whether his touch action is valid , resulting in multiple touches on the touch screen, which imposes a meaningless signal processing burden on the touch system and degrades the user experience. In order to further improve the user experience brought by the touch screen, especially the tactile experience, some existing touch screens are provided with a vibrator connected to the touch screen, which is modulated into vibration information by capturing and analyzing the user's touch motion, and using the vibrator Vibration feedback...

AI Technical Summary

Problems solved by technology

[0002] The touch screen used in the prior art only has the function of touch positioning, that is, it can only provide visual feedback through the display screen. When the picture on the screen of the display screen does not change much or when typing, the user sometimes is not sure whether his touch action is valid , resulting in multiple touches to the touch screen, which imposes a meaningless signal processing burden on the touch system and degrades the user experience

In order to further improve the user experience brought by the touch screen, especially the tactile experience, some existing touch screens are provided with a vibrator connected to the touch screen, which is modulated into vibration information by capturing and analyzing the user's touch motion, and using the vibrator Vibration feedbacks the user's touch action, but the tactile feedback obtained through vibration is not realistic enough; in addition, this method makes the entire screen of the touch screen vibrate, and the tactile experience brought to the user is not friendly enough, and it still does not have a good user experience. to experience

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