How does the display of a foldable smartphone work??
Smartphone displays are usually made of glass, which is mostly rigid. However, foldable displays are now possible for flexible display technology. Organic light emitting diodes or OLED displays are made of organic matter that emits light when electricity passes through them. These technologies are built around OLED screens because they do not require a backlight to work. Thus, these displays can be made so thin that they become flexible, forming the basis of flexible screens.
Tech giants like Apple and Samsung have been using this technology for a long time, but in the past this technology was only used to give curved edges to devices. Flexible displays can be found on older smartphones such as the iPhone X and Samsung Galaxy Edge series. This technology has evolved a lot now and has grown from allowing the curved edges of the screen to create a screen that can actually be folded.
What materials are used to make foldable displays?
All first-generation folding screens were made of plastic polymer because the glass is too hard and cracks when it is bent. Manufacturers initially used polymer because it was lightweight and flexible, but this material was rejected because it was more prone to scratches and marks than glass displays.
Image Credit: iStock
Samsung unveiled the Galaxy Z Flip in 2020, calling it a “leap from polymer screens to ultra-thin glass technology.” Although the Samsung Galaxy Z Flip has a soft, scratchy plastic layer on top, the main component of the display is glass.
Foldable smartphone display: Advantages
Large display portability: Smartphone users can now perform tasks using their devices that were previously only possible with computers. It is almost impossible to tell the difference between what a smartphone should be used for and what it is not This trend is the driving force behind the introduction of tablets as well as large screen phones. Folding display technology has pushed it into more difficult debates. Previously, users had to go for a larger device if they wanted a larger display. But with foldable screen technology, users can now get bigger screens without sacrificing the portability of their device.
Multitasking is easy:Foldable smartphone Multitasking can be taken to a new level as these devices allow users to run up to three screens simultaneously. The large screen size of these devices also ensures that users do not have to go blindfolded to view on-screen information. This is something that most users probably need to do when multitasking on a traditional smartphone. It can be a game-changer for customers who use their smartphones for work as they will be able to run three apps simultaneously on a tablet-sized screen. For example, you can join a live meeting in one app while taking notes in another app at the same time.
Good image quality:Foldable smartphone display Built around OLED screens that make their image quality better than most smartphones currently available. The flexible OLED display provides higher brightness, better contrast, faster refresh rate, and lower power consumption compared to a device featuring an LCD screen of the same size.
Screen protection: Most foldable phones on the market fold inwards which cover the screen when folding. The casing bears the brunt of any accidental impact, while the screen is protected.
Display of foldable smartphone: Difficulty
Purchasing power: There are traditional smartphones or tablets that are available with similar features and are less expensive than foldable devices. The Samsung Galaxy Fold was launched at a price of around Rs 1,50,000, where traditional smartphones with similar specifications are available for less than half of that price.
Regular wear and tear: Folding displays are worn with frequent folding and unfolding of these devices. In addition, the number of folds is a Foldable smartphone Tolerance before giving is also not standard among the major players in the industry. CNET conducted a test to test the number of folding devices and found that the Samsung Galaxy Fold folded 120,000 rounds before leaving the hull, while the Motorola Razr was able to withstand only 27,000 folds.
Heavy device: Smartphone users tend to choose more portable devices. When portability is a concern, the thickness and weight of the device should also be considered. Foldable smartphone screens fold on themselves which makes the device heavy enough to carry around.
What does the future hold for foldable smartphone displays?
Foldable smartphone displays may be exciting and may be the biggest innovation in smartphone production, but there are still some doubts about whether these display technologies will become mainstream. Critics point to its high value and its tendency to fail after repeated folds as an initial error.
Flexible smartphones give users the ability to get a screen twice as large as a phone, which eliminates the need to purchase two separate devices – a phone and a tablet.
As we have seen before, history has repeatedly shown that technology is getting better and cheaper over time. Users can expect the price of these devices to go down as the technology behind the display of foldable smartphones gets better.