Pressure induction structure, pressure induction panel and pressure induction display device

Abstract

The invention provides a pressure induction structure, a pressure induction panel and a pressure induction display device. The pressure induction structure comprises a first electrode, a second electrode, a public electrode, a capacitance detection unit and a pressure grade identification unit, wherein a first insulation layer is arranged between the first electrode and the second electrode, and a second insulation layer is arranged between the second electrode and the public electrode; the first electrode and / or the second electrode comprise a plurality of sub electrodes which are separated; a plurality of through holes are formed in the first insulation layer; a conductive sliding column is arranged in each through hole; under an initial non-stress state, the sliding columns are connected with the first electrode, and a clearance is formed between the sliding column and the second electrode; meanwhile, the clearance values of the sliding columns in the multiple through holes are classified into a plurality of grades; the sliding columns slide towards the second electrode under stress; the capacitance detection unit is connected with the first electrode and the public electrode respectively and is used for detecting a capacitance value between the first electrode and the public electrode; the pressure grade identification unit determines the pressure grade of a user according to the detected capacitance value.

Description

technical field [0001] The invention relates to the technical field of pressure sensing and display, in particular to a pressure sensing structure, a pressure sensing panel and a pressure sensing display device. Background technique [0002] A touch display panel generally includes two parts: a display panel and a touch panel. When preparing the touch display panel, the most basic solution is to first prepare the display panel and the touch panel separately, and then bond the display panel and the touch panel to form the touch display panel. In addition, there are two schemes, On-cell and In-cell; the so-called On-cell scheme refers to forming a touch circuit on the surface of the display panel, so that no bonding process is required. Compared with the first scheme, , can reduce the thickness of the touch display panel; and the so-called In-cell scheme refers to the formation of touch circuits in the display panel (for example, between the array substrate and the color filt...

AI Technical Summary

Problems solved by technology

[0003] The touch display panel prepared according to the above-mentioned various schemes can generally only recognize the coordinates in the X direction and the Y direction, that is, it can only determine the position of the screen pressed by the user, but cannot determine the force with which the user presses the screen. This brings limitations to the further development and application of touch control

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