How To Choose The Best Touchscreen LED Display

Currently, most LED displays are equipped with touchscreen technology. The combination of these technologies creates a highly interactive display. Moreover, this has caused the touchscreen to become a standard feature in most everyday devices. This article discusses how you can take full advantage of these two technologies. 

Understanding Touchscreen LED Technology

Touchscreen LED

A touchscreen LED display is a hybrid of two technologies — LED and touchscreen. The LED in this case refers to the display technology while the touchscreen refers to the input and output system. 

To elaborate, LED display technology uses tiny light-emitting diodes either for backlighting an LCD panel or to make up the entire display. LED display technology is known for its energy efficiency, vibrant color representation, and durability, among other features. 

Touchscreen technology is comprised of a touch sensor, a controller, and a software driver. These three components work in tandem whenever an input is made. In some cases, these components are configured differently depending on the specific type of touchscreen. 

The touch sensor of the touchscreen display is the most critical component of the system. It has a mechanism that detects tactile touch signals and transmits them to the controller. Consequently, the software driver helps the device to understand the input and produce an output. 

Touchscreen LED displays can be operated either using bare fingers, a stylus, or special gloves. In some cases, the combination of these input techniques works while others only work with one or two input methods. 

Types of Touchscreen LED Displays

Essentially, there are four basic types of touchscreen technologies. Each of these types has its mechanism of functionality. Let us discuss them and how they function.

Capacitive Touchscreen

The touch panel of a capacitive touchscreen is coated with an electrically charged sheet of material. This is what facilitates the conductive form of transmission that the capacitive touchscreen.

Capacitive touchscreen relies on the change in capacitance signals. This change is what lets the screen ‘know’ the location of the touch. Also, this follows the transmission of electrical charge to the point of contact, therefore transforming it into a dynamic capacitor. 

This type of touchscreen is quite efficient and can be controlled by a finger, stylus, or gloves. As a result, it is used in many devices such as smartphones, tablets, PDAs, and many handheld devices. 

Resistive Touchscreen

This type of screen responds to pressure. In other words, for a resistive touchscreen to work, you have to apply some pressure on the touch panel. The pressure applied on the panel causes the connection between the two conductive layers.

The top layer of the touch panel in a resistive touchscreen is typically made of polythene while the bottom layer is made of is made of glass. These two layers are separated from each other by conductive dots which hold the touch controller. Generally, they are considered less capable than capacitive touchscreens in terms of functionality and price. 

Infrared Touchscreen

Essentially, infrared touchscreens have photodetectors and IR LEDs. The touch panel on this type of touchscreen works with the help of infrared beams. This is enabled by the photodetectors that detect the disturbance of the infrared beams. When touch is detected, this information is relayed to the controller for processing. 

IR touchscreens are quite efficient compared to other types of touchscreens. This is because they support multitouch, have a short response time, and do not scratch easily. Therefore, you will see them applied mostly in large screens such as touchscreen LED video walls.

Surface Acoustical Wave touchscreen (SAW)

SAW touchscreen technology consists of a panel with a transmitting and receiving transducer, and reflectors. Transducers are devices that convert variations in pressure into electrical energy. These two transducers are placed in the X and Y axis of the touch panel. 

The method used by this type of touchscreen to detect touch commands is quite different from all other touchscreens. In essence, SAW touchscreens use wave patterns to detect the input from the finger or stylus. Like all other types of touchscreens, this one is efficient and has the potential for multiple applications.

Factors to Consider When Choosing Touchscreen LED

When choosing your next LED display with touchscreen capabilities, you need to consider several factors. This will help you make an informed decision since you will have weighed the pros and cons of each based on their features. The following are some of the factors you should consider.

Type of Touchscreen 

In the LED display marketplace, you will find all sorts of devices with different types of touchscreens. Essentially, they will fall into one of the four categories we have discussed above. The reason why it is recommended to choose an LED display based on the type of display is because not all touchscreens work the same. 

For instance, the mechanisms used by resistive and capacitive touchscreens differ a lot. If you are purchasing a small handheld LED-based device, you would typically choose one with a capacitive rather than a resistive touchscreen. 

Screen Resolution 

LED displays come in different resolutions. This represents the number of pixels present in the grid formed by the display. Typically, you would need to go for displays with a high resolution. Such displays have accurate images, colors, and generally better viewing experience. 

Choosing a touchscreen LED display with a high resolution is also recommended because you will have a better interaction with it. To elaborate, you will be able to make accurate inputs using your fingers or stylus and receive accurate output. 

Type of Device 

LED displays are fitted in possibly all devices today. Moreover, the majority of these devices have touchscreen capabilities. However, the only difference is that not all devices use the same kind of LED display technology or touchscreen. In return, this can make it challenging to choose the device of your choice. 

Luckily, most device manufacturers specify the type of LED and touchscreen technologies used on the various devices. You can then use this specification to choose the ideal touchscreen LED display.

Response Time

A touchscreen display can either have a low or high response time. This response time is regarded as the time it takes for the controller to interpret the touch signal from the finger or stylus. The most efficient touchscreens have a very high response time in the range of 1 to 10 milliseconds. 

The response time of a touchscreen display depends on the specific type of touchscreen technology being used. The most efficient technologies such as capacitive have a high response time of less than 10 ms while others like infrared can take up to 20 ms. Such high response times can make the device less efficient compared to others.

Power Efficiency

When using LED-based displays, power is one thing to consider. However, LED displays are generally known to have a high power efficiency. In other words, they consume less power but still perform excellently. Depending on the use case for the LED display, you might encounter some that have low power efficiency. Therefore, you should focus on highly efficient systems for better savings on power bills.

Maintenance Tips for Touchscreen LED Displays  

LED display maintenance involves all the activities that you undertake to make the display function optimally at all times. Most LED displays have a high lifecycle, meaning that they can survive for a long without needing repairs and replacement. However, this can only happen if the device undergoes regular maintenance.

Some of the recommended maintenance practices include;

  • Cleaning the display
  • Repairing broken components
  • Replacing broken items
  • Fine-tuning settings

Most of these maintenance practices can extend the lifespan of an LED display by a significant factor. This is mostly important for outdoor LED displays which experience quite harsh conditions every day. 

Benefits of Touchscreen LED Displays

The technology behind touchscreen displays is quite beneficial today. Some of the expected benefits from this technology include;

Improved Accessibility

Controlling devices using a remote control or manually can get challenging to some extent. This is why touchscreen technologies are getting integrated into almost all devices. It makes devices more accessible since there is improved interactivity. For instance, you get to feed more inputs with a stylus than you would with a remote device.

Versatile Applications

The applications of touchscreen technology are endless. They range from small handheld devices such as smartwatches to large display interfaces such as video walls. Also, the versatility in the application of touchscreen LED spans across industries and sectors. For instance, you will find this technology applied in aerospace, military, and entrainment, across other industries. 

Simplified Navigation

One of the core benefits of touchscreen LED is the simple navigation. This is because the interface is quite intuitive and it leads you on. Also, the navigation aspect is controlled by what you see and how you interact with it. This makes selecting and tapping inputs quite straightforward. In return, you become more efficient with an LED display. 

They are Lightweight

The reason touchscreen LEDs are used in many devices is because of their lightweight nature. One of the reasons for this is that LEDs are usually small in size. These tiny semiconductors are weightless, and it explains why they are packed in millions on a single panel. The lightweight nature of these LEDs widens the use cases and applications of the technology.

Applications of Touchscreen LED

Probably, over fifty percent of the devices you interact with daily use touchscreen LED display technologies. This is because this technology has penetrated almost all sectors across the globe. Some of the notable applications of the touchscreen LED technology include;

Television 

You have heard of LED TVs, but have you heard of touchscreen LED TVs? When touchscreen technology was invented, TVs were among the first devices to receive this technology. It improved the feel, functionality, and value of these devices. You will find touchscreen LED TVs being used in studios, newsrooms, and in some homes too.

Laptop

Touchscreen laptops are quite common in many regions. They are considered a more improved version of a tablet since they can serve as both. The only thing is that they can be quite expensive compared to regular laptops. All in all, touchscreen LED laptops can make you more productive than their counterparts.

Smartwatch

Wearables such as smartwatches have dominated the market. The only problem is that the majority of the smartwatch ecosystem is made from low-end display technologies. On the other hand, LED smartwatches are quite efficient, aesthetic, and classy. Major smartwatch manufacturers have started experimenting with more high-end LED technologies.

Smart appliances

In modern homes, you will find smart appliances with touchscreen LED screens. These appliances have IoT capabilities so they can communicate with most devices inside your home. Most of the high-end appliances such as smart fridges have touchscreen LED screens for I/O operations. 

Infotainment screens

In most automobiles, you will find that the infotainment centers have a touchscreen interface. While some of these interfaces are made from display technologies such as LCD, top-of-the-line automobiles use LED displays. They are more responsive, clear, and better looking. 

Conclusion

Touchscreen LED technology is making waves in various industries as demand for more efficient interfaces arises. Over time, this combination could become standard across the board. When that time comes, you will have an edge since you now understand this technology better. Check out more resources on our blog page and learn more about LED technology.

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