What is an OLED screen? Before you buy a phone, take a quick look at the OLED screen!

I believe that the average person can understand the specifications of the phone when buying a mobile phone, which may be screen size, boe 2023

processor, storage space, lens function, battery capacity... ... Let's wait. For example, more and more use of OLED screens, this technical specification is more difficult, perhaps also learned from the shop assistant, color display is more beautiful? So what are the advantages and disadvantages of OLED screens in addition to screens? For those of you who want to buy an OLED phone, let us show you.

What is OLED?

OLED(organic light-emitting diode), also known as organic light-emitting display (OLED), BOE displays is a display technology that utilizes the light-emitting ability of light-emitting diodes without relying on backlit panels, which is also the biggest difference between liquid crystal displays and liquid crystal displays that require backlit liquid crystal displays to provide color.

However, because the OLED is produced by its own light, which makes the OLED more perfect display color saturation and contrast,oled manufacturer does not need the white light of the backlight, but also makes the black on the screen appears more pure, unlike the LCD will have light leakage, black will have a little gray black feeling.

The luminous principle of LCD and OLED, LCD needs to project the white light on the backrest light plate to project the color, and OLED is that we can emit light to produce color, the components are much less, so the company can make their own thinner.

Each RGB pixel of the OLED screen emits its own light.

What are the advantages and disadvantages of using oled screens wisely?

OLED display has been used on mobile phones for a long time, looking back, from the bulky CRT screen, to the development of thin and light LCD screen, I think OLED screen will become the trend of mobile phone adoption in the future, so what are the advantages and disadvantages of OLED?

[Advantage 1] The color is brighter and more beautiful

OLED screens can provide clearer images, more vivid colors, simply put, the screen presents a more delicate picture than LCD, and the photos are more beautiful, which is the main reason why many people like OLED screens.

[Advantage 2] Light volume

Oleds are made of organic materials, do not require a backlit panel, and are thinner and lighter than LCDS. It is flexible and can be used for folding or flexible screens. The lens on the screen and fingerprint recognition on the screen also rely on OLED for ultra-thin and good light transmission characteristics.

[Advantage 3] The power saving effect is obvious.

Because each pixel of the organic light-emitting diode can emit its own light, it can be completely darkened under a black background, unlike the lcd, which needs to open the entire backlight board for local use, so it can save power under a black background.

[Disadvantage 1] Short service life causes fading of residual image.

Although each pixel information of the OLED screen can emit its own light, but the wavelength of the three primary colors red, green, and blue is different, and the luminous life is different, so long-term use may cause some pixels of the enterprise to prematurely aging, and the screen color will appear red, green, or residual shadows, which is what we call brand technology and so on.

[Disadvantage 2] Pulse width modulation flash causes eye pain

In general, the way to adjust the brightness of the LCD screen is to use DC(direct current) dimming method, that is, to change the brightness through the current, but most organic light-emitting diodes use PWM(pulse width modulation) dimming method. PWM has only two states: full light and full dark. If you want to change the brightness of the screen, you can do so by switching the ratio of full light to full dark time. The higher the total light time ratio, the brighter the screen.

The reason why the eyes will be more tired is that OLED requires high-speed switching (flashing) when adjusting the brightness, so that the human eye can produce the illusion of the screen becoming brighter or darker. Although the flicker frequency of most elderly people on the market is between 200Hz and 300Hz, which is undetectable to the human eye, it still needs to be above 1000Hz, so this low-frequency flicker is still potentially harmful to the sleeping eye.

Worried about OLED screen branding? You should see this test

A laptop can also have the amazing quality of an OLED TV

What are the advantages of organic light-emitting diodes? Its color is precise and protects the eyes!

Posted by: onlyress at 02:52 AM | No Comments | Add Comment
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