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Method of scanning touch panel and touch integrated circuit for performing same

An integrated circuit and touch screen technology, which is applied in computer control, general control system, electrical digital data processing, etc., can solve problems such as difficult to accurately identify the user's touch, increase in noise of sensing signals, etc.

Inactive Publication Date: 2016-03-09
DONGBU HITEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the noise of the sensing signal will increase, so it will be difficult to accurately recognize the user's touch

Method used

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  • Method of scanning touch panel and touch integrated circuit for performing same
  • Method of scanning touch panel and touch integrated circuit for performing same
  • Method of scanning touch panel and touch integrated circuit for performing same

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Embodiment Construction

[0035] The claimed invention will be described in detail below with reference to the accompanying drawings showing the embodiments. However, the claimed invention need not be configured as will be represented in the embodiments described below, and it can be implemented in many different forms. When it is described that a member is disposed on or connected to another member or layer, the former may be directly disposed on or directly connected to the latter, or other members or layers may also exist therebetween. On the other hand, when it is described that an element is directly disposed on or directly connected to another element, no element may exist therebetween. Although the terms "first" and "second" may be used to describe items such as different members, components, regions, layers and / or parts, they are not limited thereto.

[0036] The specific terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of ...

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PUM

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Abstract

According to embodiments, methods of scanning a touch panel and a touch integrated circuit (IC) for performing the same are disclosed. The touch IC simultaneously supplies a first driving signal having a first phase and a second driving signal having a second phase to a first driving line and a second driving line of the touch panel, respectively, and detects a sensing signal from a sensing line crossing the first driving line and the second driving line. The touch IC acquires a first scanning signal corresponding to the first driving line and a second scanning signal corresponding to the second driving line from the sensing signal.

Description

technical field [0001] The present invention relates to a method of scanning a touch screen and a touch integrated circuit (IC) for performing the method. More particularly, the present invention relates to a method of scanning a touch screen to recognize a user's touch signal, and a touch IC for performing the method. Background technique [0002] Touch screens can be used as input devices for smart devices including display screens and application processors. The touch screen can be classified into a resistive type, a capacitive type, or an electromagnetic type. [0003] For example, a mutual capacitance type touch screen can detect a touch position by measuring a change in mutual capacitance caused by a conductor between a touch driving line and a sensing line. [0004] A mutual capacitance type touch screen may include a plurality of driving lines and a plurality of sensing lines crossing the driving lines. When the driving signals are sequentially supplied to the dri...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/04166G06F3/0446G06F3/041G05B15/02
Inventor 洪源铁宋濬金荣旭李进娥
Owner DONGBU HITEK CO LTD