Full-color touch lattice module and control method

Abstract

Existing LED lattice modules in the market do not have touch functions, if existing capacitive or resistive touch screens are required to be added to surfaces of LED lattice screens, costs are increased dramatically due to the fact that touch sizes are too large, and the existing capacitive or resistive touch screens are not suitable for large-area touch lattice displays. According to a full-color touch lattice module, capacitive touch keys and a full-color LED display are integrated to be in a form of an array module, the surface of the module can receive human body touch signals, and specific pattern effects can be displayed through LED arrays; the module comprises four pin interfaces, so that modules can be connected in series and combined conveniently for use; data among the modules are input and output in a serial communication manner and transmitted in the format of a specific message; a control chip of the module calls a corresponding subprogram according to a function code of a received message, display data are transmitted to the next stage sequentially from the module, and touch data of the module are transmitted to the upper stage sequentially, so that a control host acquires touch positions of a whole module combination and controls specific module color display.

Description

technical field [0001] The invention relates to a full-color touch dot matrix module and a control method, in particular to a cascadable touch and full-color display dot matrix module with a data communication interface, which belongs to the technical field of electronic control. Background technique [0002] At present, the LED dot matrix modules on the market do not have touch function. If you want to add the existing capacitive or resistive touch screen on the surface of the LED dot matrix screen, the touch size will be too large, and the cost will increase sharply, which is not suitable for large-scale applications. Touch the dot matrix display to use. Capacitive touch button technology is mature, simple structure, low cost, high sensitivity, and can already replace most of the mechanical buttons, but the touch button display module currently on the market is only a single-color or two-color display, used to indicate the state of the touch , the display effect is relati...

AI Technical Summary

Problems solved by technology

Capacitive touch button technology is mature, simple structure, low cost, high sensitivity, and can already replace most of the mechanical buttons, but the touch button display module currently on the market is only a single-color or two-color display, used to indicate the state of the touch , the display effect is relatively monotonous, and it is impossible to display a specific color according to the situation

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