Touch controller, touch-control panel including touch controller and method of detecting circuit fault

Abstract

The invention relates to a touch controller, a touch-control panel including the touch controller and a method of detecting a circuit fault. The touch controller includes a comparing unit and a judging unit, wherein the comparing unit is used for comparing a received initial signal with a reference value; if the deviation between the initial signal and the reference value exceeds a preset threshold value, it is determined that the touch-control circuit fault exists at a position corresponding to the initial signal. Therefore, even after a product leaves a factory, the condition of a touch-control circuit can be detected at any time, and the fault in the touch-control circuit can be found; besides, according to several embodiments, the position where the fault occurs in the touch-control circuit can also be accurately positioned, and detected faulty results can be stored and displayed.

Description

technical field [0001] The present invention relates to the field of touch technology, and more specifically, to a touch controller, a touch panel including the touch controller, and a method for detecting circuit faults in the touch panel. Background technique [0002] Touch Sensing Panel (TSP) is a sensory device that can receive input signals such as touch. When a predetermined position on the touch panel is touched, the tactile feedback system on the screen can perform corresponding actions in response to the contact. function. Therefore, the touch panel can be used to replace the mechanical button panel. As a new input device, the touch panel is currently the simplest, most convenient and natural way of human-computer interaction. Generally, the touch panel can be integrated with the display panel to form a touch display panel. Currently, many portable mobile terminals are equipped with a touch display panel as an input device and a display device. [0003] At presen...

AI Technical Summary

Problems solved by technology

[0003] At present, there is no uniform detection standard for the degree of TSP damage of end users. As a result, many products have not been found in time to detect touch-related defects after they enter the market, and cannot effectively follow up changes in product characteristics, which will eventually cause economic losses to customers and unnecessary costs to manufacturers. Trouble

In addition, when users use TSP to operate, they cannot judge the characteristics of TSP in time, and cannot understand the failure of TSP well.

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