This is the beginning of the declining LCD returning to the mainstream.
For example,
Obviously, Mini LED will become synonymous with high-end products in the display market. Next, we will talk about it in two parts.
1. What is a mini LED? What does it have to do with LCD?
Second, MIni LED, why does it have something to do with your wallet?
Mini LED, scientific name, submillimeter light emitting diode, is an improved version of light source technology, which was first proposed by Taiwan Province Jingdian. This technology has attracted the interest of many manufacturers, such as Apple, Samsung, TCL and BOE.
What can mini LED be used for?
1. Direct lighting, such as conventional lighting, plant lighting, new demand under the COVID-19 epidemic, ultraviolet LED antivirus.
2. LCD backlight is expected to replace OLED screen as the mainstream.
In the next year, you will see MIni LED, which will be distributed on all screens, including mobile phones, tablets, laptops, monitors and televisions.
In recent years, patterns about screen materials have emerged one after another.
PS, surprisingly, the technical concepts of organic light emitting diode and mini LED were put forward by scientists in China!
What's the difference between the screen material types just mentioned?
The simplest division of screen materials
LCD realizes the transformation from black-and-white screen mobile phone to color screen mobile phone.
Take advantage of bright colors, energy saving, light weight and light weight to seize the vast majority of LCD market share.
South Korea's Samsung's high-end organic light-emitting diode screen for its own mobile phone, like ultra-high-end organic light-emitting diode screen and organic light-emitting diode, has its own advantages and disadvantages.
The outstanding feature is that it is too beautiful and expensive.
Anyone who loses the screen of Samsung's flagship mobile phone has a deep understanding.
A magic weapon for liquid crystal to attack organic light-emitting diodes
What should I do?
In order to catch up with the bright color and high brightness display effect of organic light-emitting diodes, liquid crystal displays must start from
Backlit QLED
Color display mode mini LED
Make changes to ...
So there are two technologies that you often see.
Mini LED & ampMicro LED came into being. They are all backlight lighting technologies, and the main difference lies in the distance between luminous points.
Mini LED (50~200 microns),
Micro LED (less than 50 microns).
The distance between point light sources of Micro LED is 1% of that of LED, which greatly improves the contrast of the picture.
The difference between them is similar to SD mini SD micro SD in the memory card.
Obviously, Micro LED, as the ultimate technology, can bring the ultimate display effect. Because the technology is too advanced and can't keep up with it, it is impossible to produce on a large scale at present. The unit price of finished products is too high. Now there are also microLED displays on the market, but the price of a 65-inch screen is as high as tens of thousands of euros.
Therefore, the intermediate product mini led is sought after by capital because of its less technical difficulty.
Using Mini LED as backlight improvement technology, plus new color display QLED,
So that the LCD will obtain,
about
Why is the price so high?
The industry trend of mini led and domestic favorable industrial companies will be discussed in the next article.
Why is the display fineness of OLED screen different from that of LCD with resolution?
The LCD screen adopts the traditional RGB (red, green and blue) standard arrangement, and the three pixel areas are 1: 1: 1.
Organic light-emitting diode screen, arranged in a diamond shape, has twice as many green pixels as red and blue pixels, and the actual pixel per inch (ppi) of the screen is about three times.
"No screen, no 2K screen" comes from this. For example, Apple's iPhone 1 1 has a PPI of only 326 per inch, but there is no difference in screen fineness compared with some organic light-emitting diode screen phones with 1080P resolution.
What the hell are diamond screens and Zhou Dongyu screens?
Organic light-emitting diodes are thin, energy-saving and beautiful in color. When it comes out, it attracts people's attention, but it also has one of the biggest shortcomings, that is, pixel life.
Organic light emitting diodes use RGB sub-pixels of three different colors to emit light with different intensities and mix the colors. The raw materials of these three colors of pixels are also different.
To control the smaller single pixel on the OLED screen, it needs more current, which is easy to burn the screen after long-term use, leading to premature death of the screen. Usually, the greater the brightness, the easier it is to cause this situation, and the color on the screen will not fade.
The color accuracy of OLED screen is also a difficult problem. Apple didn't use the OLED screen before the iPhone X, because of the cost and the color calibration of the OLED screen was not completely determined.
The three sub-pixels of organic light-emitting diodes are made of different materials, with different lifetimes and short green lifetimes, which is one of the reasons why there are so many wonderful arrangements.
For example, Samsung has patented diamond arrangement, as well as Delta arrangement and Zhou Dongyu arrangement.