Analog 4-Wire Resistive Touch Screen

Sourcing Analog 4-Wire Resistive Touch Screen

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What is a Analog 4-Wire Resistive Touch Screen

Script

Dr Pan: Welcome to DISPLAY Museum. I am Dr Pan, the curator of Museum.

Greg: Hello, Dr Pan. I am Greg. I came here to learn about analog 4-wire resistive touch screen.

Dr Pan: Hello, Greg. Analog 4-wire resistive touch screen is the most common and basic touching technology. The most vivid feature is 4-wire FPC.

It is going to need two layers to achieve the touch function: Top sheet ITO film and Bottom sheet ITO glass. It is supposed that bottom layer is X electrode and top layer is Y electrode, anode end is 5.0 V and cathode end is 0 V. When we touch the surface of the screen, it gets X1 in the X electrode and Y1 in the Y electrode according to the variation of voltages. The contacting position can be calculated since the values in both X and Y electrodes are noted.

Greg: Dr Pan, I heard analog 4-wire resistive touch screen isn’t serving as long as capacitive touch screen. Why?

Dr Pan: When we press the surface of resistive touch screen, ITO film will be deformed by the pressure.

As the time goes by, eventually, ITO film will be damaged by the deformation, and both X and Y electrodes can’t detect the corresponding voltages, therefore it can’t be used anymore.

But every coin has two sides. Analog 4-wire resistive touch screen is very cheap and high resolution. It can be used in the hostile environment: dust, humidity, greasy dirt, etc.

Greg: Thank you, Dr Pan. Now I got it.

Dr Pan: Welcome to contact us if you have any question.

ITEM	VALUE	UNIT
Size (Diagonal)	5.5	inch
Digital Matrix or Analog	Analog 4-wire
Structure	3-layer PET+ITO Film+ITO Glass
Application	Industrial Control Machine

ITEM	VALUE	UNIT
Size (Diagonal)	8.1	inch
Digital Matrix or Analog	Analog 4-wire
Structure	2-layer ITO Film+ITO Glass
Application	Industrial Control Machine

ITEM	VALUE	UNIT
Size (Diagonal)	4.5	inch
Digital Matrix or Analog	Analog 4-wire
Structure	3-layer PET+ITO Film+ITO Glass
Application	Industrial Control Machine

Getting to Know Analog 4-Wire Resistive Touch Screens

Analog 4-wire resistive touch screens are a widely used and basic type of touch technology. They have been around for many years and are still used in many applications today.

One of the most vivid features of these touch screens is the 4-wire FPC. This refers to the flexible printed circuit that connects the top sheet ITO film and the bottom sheet ITO glass. The touch function requires two layers, and these layers are connected by the FPC.

The bottom layer of the touch screen is the X electrode, and the top layer is the Y electrode. The anode end is at 5.0 V, while the cathode end is at 0 V. When a user touches the surface of the screen, it receives X1 in the X electrode and Y1 in the Y electrode according to the variation of voltages.

By noting the values in both the X and Y electrodes, it is possible to calculate the contacting position. This is a fundamental function of resistive touch screens, which are used in many different applications.

Advantages of Analog 4-Wire Resistive Touch Screens

Although analog 4-wire resistive touch screens have certain limitations, such as a shorter lifespan than capacitive touch screens, they offer several advantages that make them an attractive choice for many applications.

One significant advantage is that they are very cheap. This makes them a popular choice for applications where cost is a significant consideration, such as in industrial and commercial settings. They are also relatively easy to manufacture, which contributes to their affordability.

Another advantage is their high resolution. Because resistive touch screens are made up of two separate layers, they can offer a high level of precision in detecting touch input. This makes them useful in applications where accuracy is essential, such as in medical devices or automotive controls.

Additionally, analog 4-wire resistive touch screens can be used in harsh environments. They can withstand exposure to dust, humidity, and greasy dirt, making them an excellent choice for industrial and outdoor applications.

Exploring the Limitations of Analog 4-Wire Resistive Touch Screens

Although analog 4-wire resistive touch screens offer several advantages, they also have certain limitations that should be considered before choosing them for an application.

One of the primary limitations is their lifespan. Resistive touch screens have a shorter lifespan than capacitive touch screens because the ITO film can be deformed by pressure. Over time, the film will become damaged, and the X and Y electrodes will no longer be able to detect the corresponding voltages.

Another limitation is the requirement for pressure. Because resistive touch screens rely on physical pressure to detect touch input, they are not as sensitive as capacitive touch screens. This can be a disadvantage in applications where a light touch is desirable, such as in mobile devices.

Finally, analog 4-wire resistive touch screens have a lower transparency than capacitive touch screens. This means that they can be more difficult to read in bright sunlight or other bright lighting conditions.

Is an Analog 4-Wire Resistive Touch Screen Right for You?

Analog 4-wire resistive touch screens offer several advantages and limitations that should be considered when choosing touch screen technology for a particular application.

If cost is a significant concern, resistive touch screens are an excellent choice. They are also useful in harsh environments where exposure to dust, humidity, and other contaminants is a concern. Finally, they offer high resolution and precision in detecting touch input.

However, if a long lifespan or sensitivity to light touch is required, resistive touch screens may not be the best choice. Ultimately, the decision to use an analog 4-wire resistive touch screen will depend on the specific needs and environment of the user. It is essential to carefully consider the advantages and limitations before making a decision.

In summary, analog 4-wire resistive touch screens are a basic but useful technology that has been around for many years. They offer several advantages, including affordability, high resolution, and durability in harsh environments. However, they also have certain limitations, such as a shorter lifespan and the requirement for physical pressure to detect touch input.

When choosing a touch screen technology, it is essential to consider the specific needs and requirements of the application. By carefully weighing the advantages and limitations, it is possible to choose the right technology for the job.

If you are interested in learning more about analog 4-wire resistive touch screens or any other type of touch screen technology, be sure to visit TouchScreenMan’s website. Our team of experts can provide you with the information you need to make an informed decision and choose the touch screen technology that is right for your application. Contact us today to learn more!

Sourcing Analog 4-Wire Resistive Touch Screen

What is a Analog 4-Wire Resistive Touch Screen

Getting to Know Analog 4-Wire Resistive Touch Screens

Advantages of Analog 4-Wire Resistive Touch Screens

Exploring the Limitations of Analog 4-Wire Resistive Touch Screens

Is an Analog 4-Wire Resistive Touch Screen Right for You?

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