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What is the difference between Soft OLED and Hard OLED?


Difference between Soft OLED and Hard OLED

Currently, there are two main types of screens on the market: LCD screens and OLED screens. So what is the difference between OLED and the LCD we talk about in daily life? OLED and LCD are relatively common display technologies in the market, and each display technology occupies a certain market share in their market.


The light-emitting principle of LCD mainly relies on the backlight layer. OLED does not need a backlight layer like an LCD screen, nor does it need a liquid crystal layer to control the amount of light. It can light up as long as it is powered on, so OLED is like a countless small colorful light bulbs. OLED screens can emit no light at all when displaying black, while LCD still require backlights to operate in the background even when displaying black. The most direct effect of this mechanism is that the OLED screen can display perfect picture contrast, and the displayed picture will be more vivid and realistic. The most direct comparison is that if you put a Samsung Galaxy S8 and an iPhone 7 together, you will find that although the display effect of the iPhone 7 is good enough, the Galaxy S8 with an OLED screen is still better.

Moreover, OLED screens can be made into curved screens. The reason why models such as the Samsung S8 have curved screens is because they use OLED screens, while LCD screens do not support bending due to the characteristics of liquid crystals. Another reason why Apple chose to use OLED screens may be that the current in-screen fingerprint recognition technology only supports OLED screens, because the in-screen fingerprint cables can be integrated with the screen cables.

The following are the characteristics of Hard OLED and Soft OLED 

Kimeery OLED screen for iPhone

1. Different drop resistance: Hard OLED is not as drop-resistant as Soft OLED, and many of the original screens of big-name mobile phones are flexible.

2. The screen feels different: Hard OLED will feel harder when touched by hand. Soft OLED will feel soft when touched by hand, and ripples will appear if you slide the panel with your fingers.

3. The process is different: Hard OLED has a layer of transparent resin material to protect the outer film. Soft OLED screens are thinner and more durable than ordinary OLED screens. The application of flexible substrates makes the screen highly impact-resistant and not easily damaged during use, and it also has unique bending and folding characteristics.

4. Prices are different: Relatively speaking, the price of Soft screens is higher than that of Hard screens. Under normal circumstances, if you can choose a Soft screen, you should not choose a Hard screen. But if the user is tight on money, you can choose a Hard screen.

5. The light sources are different: the light source of the Hard screen is realized by LED backlight, while the Soft screen is self-luminous. It is precisely because of the self-luminous nature of the soft screen that the power consumption of the soft screen is also Lower than Hard screen.

6. Different material choices: Ordinary OLED screens use glass substrates, while soft OLED screens use plastic substrates with bendable properties. In order to ensure the reliability of the soft substrate, the soft OLED screen is encapsulated using a polymer cover plate and a special film to maintain the bending ability and folding characteristics of the screen and ensure high reliability.

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