Touch pressure sensitivity correction method and computer-readable recording medium

Abstract

A touch pressure sensitivity correction method is disclosed and comprises: a step of defining a plurality of reference points on a touch sensor panel; a step of producing reference data for capacitance changes detected by applying identical pressure to the plurality of reference points; a step of producing interpolation data corresponding to capacitance changes of random points existing among the plurality of reference points; a step of calculating a correction coefficient for correcting the sensitivity of a touch input device to a target value for each of the reference points and the random points on the basis of the reference data and the interpolation data; and a step of uniformly correcting the touch pressure sensitivity of the touch input device by applying the calculated correction coefficients to corresponding points, wherein the step of producing interpolation data comprises: a step of producing a base profile; a step of producing delta data calculating the deviations of the capacitance changes of the base profile and the reference data; and a step of calculating, on the basis of the delta data, capacitance changes of the random points. Accordingly, the touch pressure sensitivity of the touch input device can be corrected in a manner than the touch pressure can be detected with uniform sensitivity on the whole surface of a display.

Description

technical field [0001] The invention relates to a touch pressure sensitivity correction method and a computer-readable recording medium. Background technique [0002] Various types of input devices for operating computing systems, such as buttons, keys, joysticks, and touch panels, are being developed and utilized. Among them, the touch screen has attracted the most attention because of its advantages such as ease of operation, miniaturization of the product, and simplification of the manufacturing process. [0003] The touch screen may constitute a touch surface of a touch input device including a touch sensor panel, which may be a transparent panel with a touch-sensitive surface. Such a touch sensor panel is attached to the entire surface of the touch screen so that the touch detection surface can cover the touch screen. The user can operate the computing system by touching the touch screen with a finger or the like. In this way, the computing system recognizes whether ...

AI Technical Summary

Problems solved by technology

[0004] In addition, in order to improve the convenience of operation, there is a demand for a device that also detects touch pressure, and such a device is being studied. However, in the case of detecting touch pressure, it is impossible to detect the touch pressure with uniform sensitivity on the display surface. question

Also, due to differences in the manufacturing process or manufacturing environment, each manufactured product may show a different sensitivity, so sensitivity correction of the touch input device to compensate for this is required

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