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Anti-interference projection type capacitive touch screen

A capacitive touch screen, touch screen technology, applied in the fields of magnetic field/electric field shielding, electrical components, electrical digital data processing, etc., can solve the problems of use effect, customer use effect, product cost increase, etc., to achieve a good touch experience, save The effect of attaching the electromagnetic film process and simplifying the production method

Pending Publication Date: 2021-01-26
成都中为兴光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] If the above methods all increase the cost of the product significantly, the effect of use will be greatly affected
It also seriously affects the customer's use effect

Method used

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  • Anti-interference projection type capacitive touch screen

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] An anti-interference projected capacitive touch screen, comprising a touch screen functional sheet and a connecting cable electrically connected to the touch screen functional sheet, the touch screen functional sheet is provided with a cover plate, and the touch screen functional sheet is provided with a channel and a touch screen IC corresponding channel PIN A resistor is connected in series between the channel of the touch screen functional chip and the PIN pin of the corresponding channel of the touch screen IC.

[0015] The cover plate is a glass cover plate or a PMMA cover plate.

[0016] The touch screen functional sheet is used as the transmitting and receiving electrodes on the glass substrate coated with indium tin oxide transparent conductive material on the front and back.

[0017] The two-dimensional coordinate channels formed on the touch...

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Abstract

The invention discloses an anti-interference projection type capacitive touch screen which comprises a touch screen function piece and a connecting flat cable electrically connected with the touch screen function piece. A cover plate is arranged on the touch screen function piece, the touch screen function piece is provided with a channel and a channel PIN corresponding to a touch screen IC, and aresistor is connected in series between the touch screen functional piece channel and the channel PIN corresponding to the touch screen IC. Compared with the prior art, the touch screen has the advantages that the product structure is optimized, the product process is simplified, the product cost is reduced, the anti-interference effect is improved, meanwhile, the product touch sensitivity is improved, and a user has better touch experience.

Description

technical field [0001] The invention relates to the technical field of capacitive touch screens, in particular to an anti-interference projected capacitive touch screen. Background technique [0002] At present, when the projected capacitive touch screen is working, it will be interfered by electromagnetic noise signals from the host and the environment, which greatly affects the use of the product. To reduce interference. Touch screen manufacturers and users have to use the following methods to deal with: [0003] 1. Add an electromagnetic shielding film on the touch screen connection cable (FPC); [0004] 2. Reduce the influence of electromagnetic interference through host software debugging. [0005] As above-mentioned methods all make product cost increase substantially, use effect is greatly affected. It also seriously affects the use effect of customers. Contents of the invention [0006] The technical problem to be solved by the present invention is to overcome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044H05K9/00
CPCG06F3/044H05K9/00
Inventor 苏飞蒋悝
Owner 成都中为兴光电科技有限公司