Display device

Abstract

The invention provides a display device. The display device comprises a control frame data storage part, a display part, a touch screen, a coordinate processing part, an operation judging part, an image control part and a display driving part, wherein the control frame data storage part is used for storing a plurality of control frame data; the display part is used for arranging the plurality of control frame data on upper, lower, left and right directions and displaying; the touch screen is used for outputting a signal indicating a coordinate of user operation; the coordinate processing part is used for periodically calculating a coordinate variation of an operation coordinate; the operation judging part is used for judging an input operation from the touch screen is a touch operation or a sliding operation according to the coordinate variation; the image control part is used for moving the frame according to the judgment of the operation judging part; and the display driving part is used for acquiring control frame data according to an instruction of image movement from the image control part and displaying the control frame data on the display part. After the operation judging part determines that the input operation of the touch screen is the sliding operation, the operation direction of the sliding operation is determined and the image control part invalids the sliding operation if the operation direction is in a preset angle range between left and right directions and upper and lower directions.

Description

technical field [0001] The present invention relates to a display device, and more particularly, to a display device that disables a slide operation when the operation direction of the slide operation falls within a predetermined angle range between a left-right direction and an up-down direction. Background technique [0002] Conventionally, there is a display device that selects a desired icon by scrolling an icon arranged in a cross in one direction along a coordinate axis. [0003] The above-mentioned operations are generally realized by using switches such as cross keys. In addition, the design that the user realizes the above-mentioned operations on icons by sliding a finger on the touch screen is also widely adopted. [0004] For example, it is described in Patent Document 1 that only slides parallel to the X-axis or Y-axis can be performed, and if it slides in an oblique direction, it is judged as an incorrect slide (see paragraph 0028 of Patent Document 1), and in P...

AI Technical Summary

Problems solved by technology

[0007] However, when the sliding trajectory of the above-mentioned drag operation falls within the vicinity of the bisector of the angle formed by the coordinate axes, it is difficult for the user to grasp whether the drag operation is slightly beyond the bisector of the angle or behind the bisector of the angle. Therefore, in this case, by comparing the length of the projection of the sliding track of the drag operation on the coordinate axis for icon migration, it cannot accurately reflect the user's intention of the drag operation

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