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4-wire vs. 5-wire Resistive Touch Screen

Views: 211     Author: Reshine Display     Publish Time: 2023-09-15      Origin: Site

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4-wire vs. 5-wire Resistive Touch Screen

1. What is a resistive touch screen?

Resistive touchscreens operate by applying pressure to the screen. A resistive screen is made up of several layers. When the screen is pressed, the outer layer is pushed onto the next layer; the technology detects this and registers input. Because they can be operated with a finger, a fingernail, a stylus, or any other object, resistive touchscreens are extremely versatile.


2. Different types of resistive touchscreens:

A. Resistive touchscreen with four wires

Four-wire touchscreens is the least expensive of all touchscreen options and is commonly found in games, toys, and other low-cost touchscreen applications. Because the accuracy is determined by the top panel interacting with the bottom panel, any damage to the top panel will reduce the accuracy. This generally makes them less reliable after extended use or frequent operation. 4-wire touchscreens must also be calibrated regularly as they are used to ensure that they register the correct input.


B. Resistive touchscreen with 8 wires

The only difference between an 8-wire screen and a 4-wire screen in terms of durability and usage is the additional wiring. This additional wiring allows the screen to be more precisely calibrated and to auto-calibrate, requiring less maintenance to maintain accuracy than its 4-wire counterpart.


C. 5-wire resistive touchscreen

Despite their similar name, 5-wire touchscreens differ significantly from 4-wire and 8-wire variants. 5-wire screens only measure input from the bottom panel, not the top panel. This means that regardless of any damage to the top layer, touchscreen use and input accuracy will not suffer. As a result, they are more durable and can withstand far more operations than other resistive options.


3. Benefits of a Resistive Touch Screen:

One of the main reasons resistive touch panels are still used is because of their simple manufacturing process and low production cost. The minimum order quantity (MOQ) and non-recurring expense (NRE) are both low. Driving is simple and inexpensive. Power consumption is also low. The resistive touch panel is also EMI-resistant. Although it cannot use the cover lens on the surface, the overlay can make it more design-friendly.


Resistive touchscreens are unrivaled in terms of durability. For this reason, manufacturers, restaurants, and retailers frequently prefer them over other types of touchscreens. Resistive touchscreens, due to their tough construction, can withstand moisture and stress without being damaged.


A resistive touchscreen can be used with a stylus or while wearing gloves. Most capacitive touchscreens can only recognize commands made with a bare finger (or a special capacitive stylus). If you tap the interface with a stylus or a gloved finger, the capacitive touchscreen will not respond to your command. However, resistive touchscreens register and respond to all types of input. They can be controlled with a bare finger, a gloved finger, a stylus, or almost any other object.


4. The distinction between 4-wire and 5-wire resistive touch screens is as follows:

The technology used to detect touch instructions determines whether a resistive touchscreen is four-wire or five-wire. Four-wire and five-wire resistive touchscreens can both read and respond to touch requests. Five-wire resistive touchscreens, on the other hand, have all of the electrodes on the bottom layer. On the other hand, Electrodes are located on both the bottom and top layers of four-wire resistive touchscreens.


The upper and lower layers of a 4-wire resistive touchscreen are sandwiched together to calculate the exact point of contact. While the precise method of operation varies depending on the device, the controller (located on the back) typically sends volts to the lower layer. When you press the touchscreen, it determines the X and Y coordinates of contact by identifying the location of the voltage. The voltage alternates between the two layers, allowing for an accurate and efficient contact calculation.


5-wire resistive touchscreens are similar to 4-wire touchscreens, but they differ in a few ways. To begin, 5-wire touchscreens only measure voltage from the lower layer. Because the upper layer is simply a shortening pad, minor damage to it will not impair the touchscreen's performance or accuracy. This is in stark contrast to 4-wire touchscreens, which measure voltage from both the upper and lower layers.


5-wire resistive touchscreens are more durable, accurate, and long-lasting than 4-wire models, making them an appealing choice for commercial applications (e.g., hospitals, medical practices, schools, etc.). A 5-wire resistive touchscreen will cost slightly more, but it is a wise investment that will pay off in the long run.

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