Pressure sensor and pressure touch panel

Abstract

The invention provides a pressure sensor and a pressure touch panel. The pressure sensor comprises a substrate (1), a plurality of sensing units (2), a plurality of wires (4) and a circuit board (3), wherein the plurality of sensing units (2) are arranged on the substrate (1), the plurality of wires (4) are arranged on the substrate (1) and are in one-to-one correspondence to the plurality of sensing units (2), the circuit board (3) is arranged at one side of the substrate (1), the plurality of sensing units (2) are radially arranged on the substrate (1) from the center of the substrate (1) to the periphery of the substrate (1), and the areas of the sensing unit (2) are gradually increased from the center of the substrate (1) to the periphery of the substrate (1). Compared with the prior art, the pressure sensor has the advantages that different regions on the surface of the pressure sensor can be enabled to have uniform sensing sensitivity, and a pressure touch experience effect of a user is improved. With the pressure touch panel provided by the invention, different regions on the surface of the pressure touch panel can be enabled to have uniform response sensitivity, and the pressure touch experience effect of the user is improved.

Description

technical field [0001] The invention relates to the technical field of touch display, in particular to a pressure sensor and a pressure touch panel. Background technique [0002] With the rapid development of smart phones, tablet computers and other electronic products, the display screen size of smart phones and tablet computers is also getting larger and larger, and the operation mode is also changing from the traditional button operation mode to the touch operation mode, followed by The rapid development of pressure touch panels. [0003] The Force Touch panel is mainly based on the deformation generated by the user's finger pressing the surface of the touch panel of the smart electronic product, and uses the Force Sensor to sense the magnitude of the pressure change, thereby realizing the force touch sensing; according to the pressure Different sensing principles, pressure touch panels can be mainly divided into three categories: piezoelectric, piezoresistive, and capac...

AI Technical Summary

Problems solved by technology

[0003] The Force Touch panel is mainly based on the deformation generated by the user's finger pressing the surface of the touch panel of the smart electronic product, and uses the Force Sensor to sense the magnitude of the pressure change, thereby realizing the force touch sensing; according to the pressure Different sensing principles, pressure touch panels can be mainly divided into three categories: piezoelectric, piezoresistive, and capacitive; piezoresistive touch panels are simple in design and lowest in cost, but due to Physical limitations, such as low light transmittance, large detection area with high line count cause the burden on the processor of smart electronic products, and the piezoresistive touch panel needs to be kept powered on, which increases the power consumption of electronic products and also makes the It is easy to age and affect the service life, so it is gradually eliminated; the piezoelectric touch panel is driven by voltage to complete the touch. Disadvantages, the production process is not mature enough, and it has not been widely used

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