Touching type press-key and control method thereof

Abstract

The invention discloses a touch key-press which comprises an upper surface, an indicating lamp, a first electrode, a second electrode and a control module, wherein, the upper surface is made of translucent materials and the inner surface of the upper surface is hollowed into corresponding key-press symbols; the indicating lamp is arranged at a first position below the upper surface; the first electrode is arranged at a second position below the upper surface; the second electrode is arranged at the right lower part of the upper surface; and the control module is connected with the first electrode, the second electrode and the indicating lamp and used for determining a distance change between a user and the touch key-press according to a capacitance value within the preset area sensed by the first electrode, controlling the power-on and the power-off of the indicating lamp according to a preset area that a user reaches and leaves and the light efficiency of the indicating lamp according to the distance change and determining corresponding key-press signals and outputting the key-press signals to a processer according to a capacitance value sensed by the second electrode. The invention can realize that the light efficiency of the indicating lamp of the touch key-press can be regulated in real time according to the distance between a user and the touch key-press and the operationis simple and convenient.

Description

technical field [0001] The invention relates to information feedback technology of electronic equipment, in particular to a touch key and a control method thereof. Background technique [0002] Existing computers, household appliances and various electronic devices are usually provided with some function keys for users to select and adjust various functions. At first, most of the function keys used mechanical keys, but the more popular ones are touch keys. Touch keys have won the favor of engineers and users for their advantages of waterproof, dustproof, complete and beautiful appearance. [0003] The touch key is usually triggered after the user's finger touches the surface material, and the indicator light will only produce an indicating light effect after the touch key is triggered. In order to provide the user with a clear indication of the function of each key before the user touches the key, it is usually necessary to print corresponding symbols on the surface of the...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this method is that: due to the printing of various symbols on the surface of the touch button, the original very complete appearance becomes broken, and it also affects the quality of the product

[0006] The disadvantage of this solution is: after the indicator lights are all extinguished, when the user needs to operate the touch buttons again, he must first touch any of the touch buttons to activate the touch button area, so that all the button indicators are off. Lights up, and then the user can clearly know the exact position of each button, and then can perform the corresponding button operation

Therefore, this solution increases the complexity of user operations

Images