Capacitive touch screen structure, process and control points (double-sided ITO structure--single-sided ITO structure) Capacitive touch screen (TP) Introduction Capacitive touch screen (TP) Introduction Why choose a touch screen ◆ Friendly human-machine interface, smooth operation performance ◆ Save space, the display is the user interface ◆ Diversified user interface methods, single-point touch & multi-point touch ◆ More beautiful design Why choose inductive capacitive touch screen ◆ The most ideal touch screen solution, especially for consumer electronics Market application of capacitive touch screen LowMarket ShareHighSmallScreen sizeLarge Composition of capacitive touch screen Cover lens OCA FPC (IC) TP module ITO Sensor Display terminal application Structural principle of capacitive touch screen (i.e. ITO sensor structural principle) Double-sided ITO structure Single-sided ITO structural principle: Using the human body electric field, when a finger touches, the mutual capacitance (coupling capacitance) of the sensing unit at the intersection of the surface row/column will change, and then the position of the point will be detected. 6 Double-sided structure X-ITO Glass Metal lead (such as Mo/AL/Mo, etc.) Y-ITO Protective film (such as SiO2, etc.) Double sides Disadvantages: high process difficulty, patent conflict Protective film (such as SiO2, etc.) Advantages: mature structure, excellent reliability Single-sided structure ITO Bridge structure SiO2 (protectine) X-ITO (sensing) POC (insulation) Y-ITO (bridge) MoAlMo (trace) GLASS (substrate) Shield ITO MoAlMo (trace) Shield ITO Metal bridge structure SiO2 (protectine) MoAlMo (bridge) POC (insulation) ITO (sensing) GLASS (substrate) Advantages: simple process, mature structure Disadvantages: reliability needs to be verified Advantages: simple process, mature structure Disadvantages: reliability needs to be verified Insulation layer Metal layer ITO……
You Might Like
Recommended ContentMore
Open source project More
Popular Components
Searched by Users
Just Take a LookMore
Trending Downloads
Trending ArticlesMore