Projection-type capacitive touch white board manufacturing method and projection-type capacitive touch white board

Abstract

The invention discloses a projection-type capacitive touch white board manufacturing method and a projection-type capacitive touch white board. The manufacturing method includes: S1 manufacturing a main board and a projection-type capacitive screen; S2 connecting an edge wire of the projection-type capacitive screen and a capacitive touch integrated circuit chip on the main board; S3 installing the main board in the casing and installing the projection-type capacitive screen at the front end of the casing to obtain the projection-type capacitive touch white board. According to the method, a metal layer is arranged on a substrate to manufacture an electrode of the capacitive screen to obtain the multi-point touch type projection-type capacitive screen. The touch white board manufactured through the capacitive screen can be matched with a projector in use to achieve multi-point touching, error operation is reduced, a specialized pen is not required, and touch operation can be achieved through finger touch simply.

Description

Technical field [0001] The present invention relates to the field of capacitive touch technology, and in particular to a manufacturing method of a projected capacitive touch whiteboard and the projected capacitive touch whiteboard. Background technique [0002] With the continuous development of electronic technology, there has been an electronic whiteboard, which can be used with computers and projectors to realize paperless office and teaching. It has the characteristics of dust-free writing, free writing, and remote communication. Existing electronic whiteboards include infrared electronic whiteboards and electromagnetic electronic whiteboards; among them, infrared electronic whiteboards mainly rely on infrared tubes around the board for sensing operation, without special pens, and can directly enter the board with fingers or other objects Touch operation can be realized in the sensing area; the electromagnetic electronic whiteboard mainly relies on the cooperation of the elec...

AI Technical Summary

Problems solved by technology

[0003] Among the above two existing electronic whiteboards, the electromagnetic electronic whiteboard needs to use an electromagnetic pen to realize touch operation, which is inconvenient to use; while the infrared electronic whiteboard does not need a special pen and has no pressure sensing, as long as a finger or object enters the sensing area , it can be recognized as a touch operation, which is prone to misoperation and is easily disturbed by the external environment such as strong light, dust coverage, etc., so the operation is not sensitive or misoperation

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