What Is the Difference between AMOLED and LCD Displays?

Posted on: March 10, 2022

Glass Bridge Monitors

Screen technology, quality, and visibility are just some of the most important factors to consider when choosing between AMOLED and LCD displays. Average consumers might not necessarily know the difference between these two types of devices or why one is preferable to the other. In this article, we’ll draw comparisons between LCD vs. AMOLED displays so you can decide which type of screen is the right choice for your personal or professional applications.

What Is AMOLED and Super AMOLED?

First, it’s important to note that AMOLED and Super AMOLEDs are both types of OLED display technology. OLED stands for Organic Light Emitting Diode. This is a type of thin-film display technology that’s built directly into the screen. The electroluminescent materials, also known as the light emitting diodes, immediately light up when they contact electricity.

AMOLED is an acronym that stands for active-matrix light-emitting diodes. This is a step up from traditional OLEDs. The basic concept of lighting up crystal diodes using electricity is the same, but the execution is slightly different. Each pixel inside of AMOLED displays consists of individual thin-film transistor strips that light up when an electrical current runs through them.

Super AMOLED devices are also descendants of the OLED technological display family. Commonly used for smartphones, AMOLEDs feature innovative touch technology integrated directly into the screen rather than including a separate thin film on top of the screen.

What Is the Difference between AMOLED vs. LCD Displays?

If you frequently use electronic devices, chances are very high that you’ve most likely come across an LCD (liquid crystal display) in some capacity. Common applications for LCDs include electronic billboards, computer and laptop monitors, digital cameras, portable electronic games, and the list goes on. LCDs are flat-panel displays. They consist of liquid crystal films that are sandwiched between two thin polarized glass layers. Backlighting is used to activate the crystals and illuminate the screen to present the desired image to the user.

Here’s a table that compares the differences between industrial LCDs vs. AMOLED displays.

AMOLED LCD
Picture Quality – Excellent picture quality with vivid colours, brightness, and contrast

– No backlighting means the display powers off pixels when showing the black portions of an image

– Brighter overall picture quality, colours are true to life
Image pixels and colours – Enhanced, bright, and vibrant colour contrast

– Pixels supply their own light source, which results in more consistent lighting throughout the entire screen without any dark or light spots

– Subdued, but accurate colour contrast and visibility

– Dark and light spots may occur throughout the screen if each pixel doesn’t receive the same amount of backlighting

Screen size and technology – AMOLEDs eliminate the need for a backlighting layer, so the screens can be made thinner – LCDs feature a backlighting layer, they require a thicker design, and will always be bulkier than AMOLEDs
Screen burn – Eventually, the pixels will burn out faster or get stuck showing only certain colours with continued use

– Icon shadowing is a bigger concern for laptops and smartphones, but you can prevent this from happening by moving your icons around every so often

– Screen burn isn’t an issue for LEDs because they rely on backlighting
Outdoor visibility and viewing angles – Side viewing angles aren’t ideal, better to view the device straight-on – Superior off-axis viewing angles and sunlight readability due to IPS technology
Reliability and durability – More susceptible to pixel burnout over time; if one pixel burns out, then they can all go out or get stuck

– More fragile and can crack if damaged or dropped

– Far more durable and can withstand more pressure or greater impact

– Backlighting prevents pixels from burning out

Power efficiency and battery consumption – More energy-efficient when showing black because the device shuts off pixels that don’t need to be used; this helps the battery last longer on a single charge – Backlight is always on, which reduces energy-efficiency and eats up battery life a lot faster
Flexibility and adaptability – Flexible, which means they’re ideal for curved screen designs especially used for wearable technology (watches, go-pros, etc.) – They can’t be bent, moulded, or made into a curved design and this limits their functionality
Display prices – Higher price point because they cost more to design and manufacture – Require more layers, but they use a slightly more affordable technology and have been around for years, which means all of the kinks have already been ironed out of the design and manufacturing process

Which Is Better: AMOLED or LCD?

That depends on what you need the device for and how much you are willing or able to spend. For basic and everyday applications, you’re probably better off purchasing a standard LCD device. But if you’re looking for enhanced picture quality with excellent colour contrast and have an expansive budget, then AMOLED is probably the right device for you.

At Nauticomp Inc., we’re always at the forefront of state-of-the-art commercial and industrial display design and manufacturing. Our devices are customizable and suitable for a wide range of applications from military ops to retail POS, and so much more. Contact us today to learn more.

Know About the Basic Components of Industrial LCD Monitors

Posted on: March 1, 2022

sunlight readable LCD

Industrial LCD (liquid crystal display) monitors are a common technological fixture for a variety of Marine, military, and even commercial applications. These monitors have internal mechanisms that allow them to display specific images according to the user’s commands. In order for the screen to work, all of the internal components that make up the mechanism must function at full capacity. Liquid crystals are the main components that contribute to the picture quality, sharpness, and brightness, but there are also other crucial elements at play inside each screen.

Important Components of LCD Monitors

There’s a lot more to LCD monitors than meets the eye. The following LCD components are crucial to making your computer screen function optimally.

1. LED Backlight

Every computer screen has an LED backlight that produces white light. The light then travels through many different layers to produce an image on the screen. Flat panel displays feature LED backlights because they reduce overheating, have higher contrast ratios, more extensive brightness settings, and excellent overall colour reproduction.

2. Liquid Crystals

Although they don’t produce light, liquid crystals are electrically charged molecules that have the ability to block or allow light to pass through. Electrical voltages are used to charge each liquid crystal and maneuver them to form specific patterns that result in the images that appear on computer screens.

3. Transparent Conductive Screen Layers

In order for a screen to function properly and display crystal clear images without interruption, every single pixel needs to be charged with an electric current. Transparent conductive screen layers made from materials like indium allow the electric currents to pass through with ease. 

4. Reflector Sheet

Also known as a dual-action brightness enhancement film (DBEF), the reflector sheet increases the brightness level of the screen by reflecting the light diodes produced by the backlight. A single brightness enhancement film has the ability to increase brightness levels by about 40% to 60%. Certain applications that require maximum brightness levels use two reflector sheets to further enhance luminance.

5. Light Guide Plate

The light guide plate is a weather-resistant transparent corrugated stiff plastic panel that controls the angle and direction in which light is displayed. As the light enters the back of the panel, the pattern formed by the ridges on the front guides it into different directions to illuminate the pixels and form the images that appear on the screen.

6. Diffuser Sheet

Diffuser sheets disperse the light evenly across the screen to eliminate the risk of hot spots that can cause the screen to overheat quickly. Spreading the light evenly across the screen also enhances the visibility and clarity of the images of the screen and reduces eyestrain by producing a softer lighting output.

7. Prism Sheet

Once the diffuser sheet evenly disperses the light, the prism sheet enhances the brightness level by further refining the light produced by the backlight. Located on the front of the light guide plate, the prism sheet consists of front-facing ridges that are on an angle to ensure that the light is transmitted at the best possible viewing angles for the user.

8. Polarized Glass Sheet

LCD monitors feature two polarized glass sheets that function as filters that make it possible for users to clearly view images on the screen. The liquid crystals are located between the two layers of polarizing sheets. Essentially, polarizers allow vertical light waves to pass through the filter and contact the light bending liquid crystals. Horizontal light waves are blocked or filtered out because they distort the image quality. Since they’re made of a plastic-like material, polarizers are sensitive to extremely humid and hot temperature conditions.

9. Glass Substrate (Backplane)

Backplanes are typically used in thin-film transistor (TFT) LCD monitors. Located toward the front of the screen, this glass substrate displays the images that result from the dual polarization process to the end-user.

10. Power Supply and Common Electrode

Modern LCD monitors use a material called indium-tin-oxide, which acts as the main power source for the entire screen and its light-emitting functions. This common electrode sends required voltage levels to activate and manipulate the liquid crystals. Most of the white light produced by the backlight is blocked out and colour filters are used to create crystal clear images on the screen. Colour filters consist of the primary colours red, blue, and green.

The final layer, which is the top polarizer, filters the polarized light even more to produce the optimal viewing experience. 

High-Tech Industrial LCD Monitors in North America

Nauticomp Inc. is one of the leading North American distributors of military, marine, commercial, and industrial LCD monitors. With 25 years of experience in the technological space, we’ve mastered the art of designing and crafting top-of-the-line digital displays that are custom-tailored to the needs of our customers. Contact us today to learn more.