Detection method and detection device of touch screen

Abstract

The invention discloses a detection method and a detection device of a touch screen. The touch screen comprises a first area and a second area, and a combining boundary exists between the first area and the second area. The detection method includes that a touch point on the first area of the touch screen is detected, and at least one first detection electrode that is touched by the touch point in the first area is obtained; whether the touch point is located in a preset area with the combining boundary as center or not is detected; if the touch point is located in the preset area with the combining boundary as center, at least one second detection electrode in the second area, which corresponds to the at least one first detection electrode, is obtained; the position of the touch point is determined according to the at least one first detection electrode and the at least one second detection electrode. According to the detection method and the detection device of the touch screen, upper and lower screens are combined into one screen so that a computational algorithm of coordinates of the touch point can be changed, 'crossing joint' of line drawing is quite smooth, clicking is accurate, and the accuracy of recognition of the touch point is improved.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a touch screen detection method and detection device. Background technique [0002] The current low-cost self-capacitance touch screen is mainly a horizontal triangle pattern, such as figure 1 As shown, the horizontal triangle pattern can realize two-point touch on a single-layer structure, but the two points cannot be on the same line. the middle point of . This will be limited in some applications, affecting customer experience. [0003] At present, in order to solve the two-point problem, the industry has developed a self-capacitance touch screen with a double-zone triangular pattern, such as figure 2 As shown, this pattern can realize two points in different areas, such as any two points in point 1, point 2, point 3, and point 4 can be identified. Specifically, the double-area triangle pattern is actually putting two triangles together, and then calculating the coordinate...

AI Technical Summary

Problems solved by technology

However, there is a problem that, since the two screens in the middle pass through the intersection, each of the two screens actually counts as a coordinate, and then they are combined together. Therefore, when the point moves upwards, there will be a "crossing gap" phenomenon; and because the capacitive screen has certain edge characteristics on the edge itself, for example, the click accuracy on the edge decreases, the jitter becomes larger, etc., the edge point itself is not very accurate, so there will be inaccurate clicks during the closing process. Accurate, jump point, cross point, etc.

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