What does OLED screen mean?
Oled screen refers to a screen made of organic light-emitting diodes, without a backlight, using a very thin organic material coating and a glass substrate (or flexible organic substrate); OLED display screens can be made lighter It is thinner, has a wider viewing angle, and can significantly save power consumption.
The operating environment of this tutorial: HarmonyOS 2 system, HONOR V30 mobile phone.
What is an oled screen?
OLED (Organic Light-Emitting Diode) is a new product in mobile phone OLED and is known as the "dream display" .
OLED display technology is different from traditional LCD display methods. It does not require a backlight and uses very thin organic material coatings and glass substrates (or flexible organic substrates). When current passes through, these organic materials will glow. Moreover, OLED display screens can be made lighter and thinner, with wider viewing angles, and can significantly save power consumption.
OLED is also called the third generation display technology. OLED is not only thinner and lighter, has low energy consumption, high brightness, good luminous rate, can display pure black, and can also be bent, such as today's curved screen TVs and mobile phones. Today, major international manufacturers are rushing to increase their investment in research and development of OLED technology, making OLED technology more widely used in today's televisions, computers (monitors), mobile phones, tablets and other fields.
In July 2022, Apple will introduce OLED screens to its iPad series in the next few years. Apple's upcoming 2024 iPad designs new OLED display panels. This process makes OLED display panels thinner and lighter.
Principle
The OLED display principle is essentially different from LCD. It is mainly driven by an electric field. Organic semiconductor materials and luminescent materials are injected and recombined through overcarriers. Achieve glow. Essentially, the ITO glass transparent electrode is used as the anode of the device, and the metal electrode is used as the cathode. Driven by the power supply, electrons are transported from the cathode to the electron transport layer. Holes are injected from the anode to the hole transport layer, and then migrate to the light emitting layer. layer, when the two meet, they generate excitons, which excite the luminescent molecules and produce a light source after radiation. To put it simply, an OLED screen is composed of millions of "little light bulbs".
Process flow
The OLED display technology preparation process has very high requirements for technical level. It is generally divided into front process and back process. Among them, the front process is mainly based on light. Engraving and evaporation technology are mainly used; post-processing is mainly based on packaging and cutting technology. Although advanced OLED technology is controlled by Samsung and LG manufacturers, many manufacturers in China are also continuously strengthening their research on OLED screens, including China Star Optoelectronics, BOE, Tianma Technology, etc., all of which are continuously increasing investment in OLED, and OLED products It has also been applied to products. Although there is a big gap compared with international giants, it has reached a usable level.
The specific process is:
(1) Indium tin oxide (ITO) substrate pre-treatment, including ITO surface flatness and increase in ITO work function;
(2 ) Adding auxiliary electrode;
(3) Cathode process;
(4) Packaging process, including development of water-absorbing materials, processes and equipment.
Advantages
Compared with traditional LCD technology, OLED display technology has obvious advantages. The OLED screen thickness can be controlled within 1mm, while the LCD screen thickness is usually 3mm. around, and lighter in weight. The liquid structure of the OLED screen can ensure the anti-aging performance of the screen, and it has a wide viewing angle that LCD does not have, allowing the same screen to be viewed over a wide range without distortion of the picture. The response time is one thousandth that of LCD screens. In addition, OLED screens are resistant to low temperatures and can display content normally in a -40°C environment. They have higher luminous efficiency, low energy consumption, and are ecologically friendly. They can be made into curved screens, thus bringing different visual impacts to people.
OLED Development Trend
OLED display technology will develop in the following directions:
1. Entering the large-size market:
OLED is the only display technology among all display technologies that can produce large-size, high-brightness, high-resolution soft screens. Large-size active AM OLED (also known as TFT-OLED) displays have gradually become the research focus of well-known foreign companies . The TFT used in large-size active AM OLED is different from the TFT used in LCD. The combination of OLED and silicon TFT technology is the only way to develop large-size OLED display;
2. Widely promoted in the display field:
OLED can not only be widely used in 3G communication terminals, wall-mounted TVs, desktop and laptop computers, GPS, digital cameras, PDAs, home appliances, industrial instruments and other civilian products, but also has extremely wide applications in the military Prospects;
3. Application to lighting field:
OLED can not only be used in indoor and outdoor general lighting, backlight, decorative lighting and other fields, but can even be used to make artistic flexible luminous wallpapers and Solid or colorful illuminated windows, wearable illuminated warning signs and other fantastic products.
In 2022, the first fully 3D printed flexible OLED display will be released.
For more related knowledge, please visit the FAQ column!
The above is the detailed content of What does OLED screen mean?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Depth Effect is a cool lock screen feature on iOS where part of the wallpaper covers the digital clock. This basically provides a mirage-like effect where the wallpaper appears to be interacting with lock screen elements. In this article, we will explain what the depth effect is all about and how to get the lock screen time/clock behind wallpaper on iPhone. What is the depth effect on iPhone lock screen? Depth effect adds multiple layers of depth to your wallpaper. When you apply a lock screen wallpaper, iOS uses the iPhone's neural network engine to detect depth information in the image you apply. If successful, your iPhone will be able to separate the subject you want to focus on from other elements of the wallpaper. Once a subject is detected, the depth of field effect will

Many friends need to turn off the screen to protect the screen when they leave the computer, but they don’t want to lock the screen because they turn off the screen. When they come back, they have to enter a password to enter the system. In fact, we can complete this step through settings. Let’s take a look at it together. Bar. Tutorial on turning off the screen without locking the screen in win10 1. First enter settings and select "Personalization" 2. Click "Lock Screen" on the left 3. Select "Screen Saver Settings" below 4. Uncheck "Show login on recovery" Screen" 5. Then click "Change Power Settings" 6. Select the icon settings on the left. 7. Set a time to turn off the monitor, and then change the sleep status to "Never" 8. Then return to the power settings just now and select the sleep time below. 9. Use the same as above

What many users are most concerned about is whether the miniLED screen will hurt the eyes. In fact, although the brightness of this screen can reach extremely high, it will not hurt the eyes and can still be used normally. Does the miniled screen hurt your eyes? Answer: It does not hurt your eyes. Although the brightness of the miniLED screen will be higher, it will not continue to maintain this brightness during daily use. It will only be displayed when the brightness needs to be increased, so it will not always maintain high brightness and hurt the eyes. This peak brightness is also for better Good presentation and expression. MiniLED screen introduction 1. MiniLED backlight display technology uses backlight, so the biggest difference from LCD is the backlight layer 2. Compared with LCD screen, the performance of miniLED will be higher.

When many friends are using their mobile phones, they suddenly find that the operation interface of the mobile phone has turned into "black and white" color. They don't know what causes it or how to solve it. This article uses Android mobile phones as an example to teach you how to make it work. The color of the mobile phone's operating interface returns to normal. 1. Set up the interface of the mobile phone and find the "gear-shaped" icon in the operation interface. As shown below: Click this icon to enter the phone’s settings interface. 2. Options The operating interface of the mobile phone has changed to black and white, which is related to the "Display" setting of the mobile phone. After entering the settings interface of the mobile phone, find the "Display and Theme" option in the drop-down menu, as shown below: Then click "Display and Theme" option to enter the details page. 3. After changing the screen color and entering the "Display and Theme" option, find the "

Screenshot feature not working on your iPhone? Taking a screenshot is very easy as you just need to hold down the Volume Up button and the Power button at the same time to grab your phone screen. However, there are other ways to capture frames on the device. Fix 1 – Using Assistive Touch Take a screenshot using the Assistive Touch feature. Step 1 – Go to your phone settings. Step 2 – Next, tap to open Accessibility settings. Step 3 – Open Touch settings. Step 4 – Next, open the Assistive Touch settings. Step 5 – Turn on Assistive Touch on your phone. Step 6 – Open “Customize Top Menu” to access it. Step 7 – Now you just need to link any of these functions to your screen capture. So click on the first

Many friends find that when adjusting the resolution of the computer, the screen resolution is increased and the screen is black. What should I do? In fact, the screen resolution of our computer can also be adjusted freely. If we cannot adjust it, then either the graphics card is faulty. If there is a problem, or we have not set up the computer properly, today the editor has brought a solution to the black screen when the computer screen resolution is increased. Let’s take a look at the details. Solution to black screen when the screen resolution is increased 1. Turn on the computer and press the F8 key to enter "Advanced Mode". 2. Select "Safe Mode" and press Enter to confirm. 3. After entering, right-click on a blank space on the desktop, select screen resolution, select a resolution suitable for the screen, and click OK after the settings are completed. Resolution related issues>>>Screen

I believe many friends have encountered the problem that their mobile phones suddenly prompt: Do not cover the top of the screen. So why does the mobile phone suddenly appear like this? Let’s take a look together below. In fact, when this happens, something is blocking the distance sensor of the phone, so this prompt is received on the screen of the phone. So why did I suddenly receive such a prompt? In fact, it may be that you have accidentally turned on the [anti-accidental touch mode] on your phone, so this problem occurs. So how do we close it? In fact, the method is very simple. Let’s take a look at it together. Method 1: Directly follow the on-screen prompts to close using the shortcut key combination. Method 2: If the above method does not work, you can also open the phone’s [Settings]

Although it will be a long time before the release of the iPhone 16 series, there have been constant revelations about the appearance and configuration. According to Korean media SisaJournal, Apple plans to introduce new ultra-narrow bezel technology in the upcoming iPhone 16 series of mobile phones. The technology involves rolling internal copper wires into a more compact structure to reduce the bezel width of the phone's bottom display, allowing for a larger display. This innovative move aims to enhance the user experience, allowing users to enjoy a wider field of view and a more immersive entertainment experience. Apple has always been committed to continuously improving its product design and technology to bring more advanced functions and performance to users. The launch of the iPhone 16 series of mobile phones will further consolidate Apple’s leadership in smart phones. According to @SnapaDigital, Apple’s new