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Capacitive touch white board

A capacitive touch and whiteboard technology, applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve problems such as inaccurate clicks, slow response speed, etc., to achieve calculation and signal processing, attached Strong focus, not easy to deform

Pending Publication Date: 2019-12-03
成都黝影科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is: the present invention provides a capacitive touch whiteboard, which solves the technical problems of inaccurate clicking and slow response speed of existing electronic touch whiteboards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] like Figure 1-2 As shown, it is an overall structural diagram of the present invention, including a panel 3, a capacitive sensing layer 5 and a support layer arranged in sequence, and the capacitive sensing layer 5 includes mutually perpendicular transmitting signal lines 17 and receiving signal lines 16, and the transmitting signal lines The intersection of the line 17 and the receiving signal line 16 forms a tiny capacitor, and the transmitting signal line 17 and the receiving signal line 16 are connected to the touch control board 13, and the touch control board 13 is used to change the value according to the capacitance of the tiny capacitor To locate the touch position, the touch control board 13 is connected to the host through an interface.

[0069] The capacitive sensing layer 5 is connected to the touch control main board 13 through an adapter board 11 . A fixed frame 1 is arranged outside the panel 3 , the capacitive sensing layer 5 and the supporting layer....

Embodiment 2

[0077] This embodiment provides a capacitive film, the schematic diagram of its front view structure is as follows image 3 As shown, it includes a PET substrate 15, a silk screen silver paste circuit (receiving signal line 16) arranged on the upper surface of the PET substrate 15, and a silk screen silver paste circuit (transmission signal line 17) arranged on the lower surface of the PET substrate 15. The silk screen silver paste lines on the surface and the silk screen silver paste lines on the lower surface are perpendicular to each other. In this embodiment, the size of the capacitor film is 96 inches, and the size of the PET substrate 15 used therein is 2182mm*2145mm.

[0078] In this embodiment, specifically, the PET substrate 15 is also called polyethylene terephthalate, which is a milky white or light yellow, highly crystalline polymer with a smooth and glossy surface. It has excellent physical and mechanical properties in a wide temperature range, excellent electric...

Embodiment 3

[0092] In this embodiment, the touch mainboard includes a main controller, N slave controllers, M drive controllers and power circuits, the slave controllers are used to process capacitive sensing signals, the drive controllers are used to drive capacitive sensing, and the The slave controller and the drive controller are connected to the flick through a small transfer board, and the power supply circuit is used to supply power to the touch control board.

[0093] like Figure 8 As shown, the touch main board includes a master controller, N slave controllers and M drive controllers, and the master controller is respectively connected to N slave controllers for synchronizing with the master controller and processing the capacitive sensing signals of each area through the I2C bus. The slave controller and the master controller are respectively connected to M driving controllers for synchronizing with the master controller and driving capacitive sensing in each area through the G...

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PUM

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Abstract

The invention discloses a capacitive touch white board. The invention belongs to the technical field of touch whiteboards. The capacitive touch screen comprises a panel, a capacitive sensing layer anda supporting layer which are sequentially arranged, the capacitive sensing layer comprises a transmitting signal line and a receiving signal line which are perpendicular to each other. An intersection point of the transmitting signal line and the receiving signal line forms a micro capacitor, the transmitting signal line and the receiving signal line are both connected with the touch main board,the touch main board is used for positioning a touch position according to a capacitance change value of the micro capacitor, and the touch main board is connected with a host through an interface; the capacitive touch whiteboard is simple in structure, reasonable in design and convenient to operate, the functions of the whiteboard, the curtain and the touch control are integrated, the touch areaof the capacitive touch whiteboard covers the whole panel area, no blind area exists, overall uniform distribution is achieved, positioning accuracy is better facilitated, and practicability is high.

Description

technical field [0001] The invention relates to the field of touch whiteboards, in particular to a capacitive touch whiteboard. Background technique [0002] With the continuous development of electronic technology, electronic whiteboards have appeared, which can be used with computers and projectors, and can 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 the infrared tubes around the board for induction operations, without special pens, and can directly enter the board surface with fingers or other objects The touch operation can be realized in the sensing area; the electromagnetic electronic whiteboard mainly relies on the cooperation of the electromagnetic pen and the metal network in the board to realize the touch opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/044G06F3/0416
Inventor 邓翔申刚
Owner 成都黝影科技有限公司
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