Optical touch screen with file scanning function and file scanning method thereof

Abstract

The invention discloses an optical touch screen with a file scanning function and a file scanning method thereof. The optical touch screen disclosed by the invention comprises a touch display module and a processing module, wherein the touch display module comprises a transparent substrate and a plurality of pixel display units and optical sensing units which are arranged below the transparent substrate; each optical sensing unit can receive light rays which come from the upper part of the transparent substrate to generate analog signals corresponding to the intensity of the received light rays; the processing module is electrically connected with the plurality of optical sensing units and used for receiving the analog signals of each optical sensing unit to generate digital images; and thus, the file arranged on the transparent substrate can be scanned by the optical sensing units to form the digital images of the file, thereby realizing the file scanning function that a traditional optical touch screen does not have.

Description

technical field [0001] The invention relates to an optical touch screen and a file scanning method, in particular to an optical touch screen with a file scanning function and a file scanning method thereof. Background technique [0002] At present, the touch function of the optical touch screen is mostly only used for interactive operation with the user, so the sensing of the touch point is only limited to the judgment of the presence or absence of the sensing signal, and cannot effectively distinguish the touch The surface image of the point object. In fact, since the touch function of the optical touch screen is only to identify whether there is a touch, its original design does not take any consideration of the surface image of the object. In addition, because the touch point is not a logical point, but has a considerable area of ​​the touch area, the judgment of the touch point includes the judgment of the approximate outline of the touch area to obtain its centroid pos...

AI Technical Summary

Problems solved by technology

This kind of operation structure will make the operation with touch and scanning requirements cumbersome, and also limit its feasible operation environment

Especially with the increasing popularity of portable electronic devices, such as notebook computers, tablet computers, e-books, etc., it is really inconvenient for users to carry scanners that are not frequently used, which further highlights the dilemma of the aforementioned operating structure

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