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Capacitive touch screen

A capacitive touch screen and electrode technology, which is applied in the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve problems such as disconnection, screen scrapping, and open leads, so as to avoid damage and facilitate testing.

Active Publication Date: 2012-08-22
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the conventional capacitive touch screen has only one set of leads and interfaces (such as figure 1 shown), when testing the leads, the tester needs to directly touch the designated electrode with the probe, which is not only difficult to operate, but also may cause damage to the electrode if the operation is not done properly
In addition, when testing the leads or when connecting with FPC (flexible circuit board), if the metal leads at the interface between the touch screen and the FPC are cut by the test probes, it will cause an open circuit (that is, disconnection) of the leads, thus making the screen scrapped.
In addition, in the actual use process, since there are no spare leads and interfaces, if the set of leads or the interface is damaged, it will be difficult to repair, and even the entire touch screen will be scrapped.

Method used

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Examples

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Embodiment Construction

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the capacitive touch screen provided by the present invention will be described in detail below with reference to the accompanying drawings. Among them, the same components are denoted by the same reference numerals, and descriptions thereof will be omitted to avoid redundancy.

[0019] figure 2 and image 3 A capacitive touch screen according to a first embodiment of the present invention is shown. The capacitive touch screen includes a substrate 5, a first transparent conductive layer 14, a second transparent conductive layer 13, a protective layer 6, a first set of leads 20, a second set of leads 30, a first interface 2 and a second interface 3 ( image 3 The first and second sets of lead wires and the first and second interfaces are not shown). Wherein, the material of the substrate 5 can generally be selected from hard materials such as glass, quart...

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Abstract

The invention discloses a capacitive touch screen, which comprises a substrate and at least one transparent conducting layer, wherein the transparent conducting layer comprises a plurality of electrode groups, and each electrode group comprises a plurality of electrodes which are connected in series. The capacitive touch screen also comprises two sets of leading wires, each set of leading wire in the two sets of leading wires is electrically connected with each electrode group, and the two sets of leading wires are respectively connected with connectors. Because the two sets of leading wires and the connectors are arranged, environment matching degree of the touch screen is guaranteed and improved, testing and debugging time is shortened, the availability of a product is improved, and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of touch screens and relates to a capacitive touch screen. Background technique [0002] In recent years, with the development of display technology, people are no longer satisfied with traditional human-computer interaction methods such as using a mouse and keyboard while enjoying a visual feast. Especially for touch mobile phones, the emergence of touch query systems has accelerated the arrival of the touch era. By installing a light-transmitting touch screen in front of the display device, people can confirm the displayed content and perform further operations by touching. [0003] At present, touch screens can be divided into resistive, capacitive, surface acoustic wave and infrared according to different working principles and transmission media. Among them, the capacitive touch screen is widely used because of its high accuracy and strong anti-interference ability. [0004] A typical capacitive touch screen i...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 孙涛黄应龙吕敬彭宽军张玉婷
Owner BOE TECH GRP CO LTD
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