The main advantages of OLED are summarized and analyzed.

More than a decade ago, liquid crystal technology began to invade the mainstream market. Consumers can easily see LCD products in the market. Due to the small size and power saving, people like LCD display products. Finally, LCD has become the past 10 The year shows the sole dominance of the field. Of course, LCD technology bans CRT technology is the trend of the times, and in the next 10 years, OLED (Organic Light EmitTIng Diode, organic light-emitting diode), which is known as the next-generation display technology, has a certain chance to ban LCD technology, and achieve a certain success, CRT The bulk is eliminated, so what are the liquid crystal technologies that are threatened by OLED?

Since the listing of liquid crystal display products, it took about 4 to 5 years to replace CRT as the new mainstream standard. The new generation of OLED TVs was first listed in September 2013, and it has been only a year and a half since its development. However, all the weather vanes at that time were liquid crystals replacing CRTs. In the past year of OLED TVs, this new technology has not affected the mainstream market, so OLEDs have a long way to go.

Nevertheless, we can't deny the potential of OLED as a display technology of the next era. Its unique physical characteristics are almost "killing fatal" for liquid crystal technology. The biggest problem comes from cost. Next, let's take a look at the "N big damage" of LCD technology. After reading it, you will understand why fever players are eager for OLED display technology.

LCD monitors are different from LCD TVs. Monitors are more static scenes, such as text work, picture processing, and typesetting. Only the game experience requires a higher response time. In contrast, the nature of TV viewing video means that it is always under dynamic scenes. Therefore, the serious response time of liquid crystal technology is not suitable for dynamic scenes in principle. Unfortunately, the market has chosen LCD TVs instead of plasma TVs.

LCD technology response time is "hard" obvious

Plasma TV response time is only 0.002 milliseconds, the human eye can not perceive the so-called smear, delay, picture tear phenomenon, but because the plasma related patent technology is in the hands of Panasonic Corporation of Japan, and Panasonic company does not have open sharing Patented plasma technology has led TV manufacturers to choose LCD technology. TV manufacturers have gradually improved the smear of LCD technology from the initial 40 milliseconds to 25 milliseconds, and then improved from 16 milliseconds to 8 milliseconds or even 5 milliseconds. It is 5 milliseconds, and the fluency under dynamic scenes is completely inferior to plasma technology.

In other words, today, there are still many users complaining that the LCD TV screen is not smooth enough, especially for some low-end TV products. To be more in-depth, the response time problem is more prominent for new Internet brands with less experience in TV technology manufacturing. Then? Why does liquid crystal technology have a slow response time?

The working mode of the LCD screen is destined to be eradicated.

No matter what means or technology, liquid crystal technology can't fundamentally solve the image sticking phenomenon, because liquid crystal molecules need time to deflect, liquid crystal molecules deflect different materials in different ways, liquid crystal molecules receive the drive chip command to change state. The time required for a process, this is what we often call "response time". Generally speaking, no matter how advanced the driving technology can not change the fact that the liquid crystal molecules need to be deflected, the response time is fast or slow, but it is impossible. Zero, so the shadow of the LCD screen is destined to be eradicated.

The liquid crystal itself is not illuminating, and it needs to be displayed by a passive light source (backlight tube). In the past, the CCFL backlight system was adopted, and in recent years, the WLED backlight system is popular, whether it is the past CCFL backlight, the current WLED backlight or the fledgling QLED quantum dot backlight systems are inevitably leaking. The OLED has self-luminous characteristics, so there is no light leakage under the black field, thereby improving contrast and image quality.

The physical characteristics of OLED self-illumination are the main reason. The black field display is like the shutdown (the above picture shows the LG logo display, which proves to be the boot state). The layering of the picture, the transparency of the color, the detail presentation, etc. are all impossible for the LCD. Comparable. The LCD, which needs to work with a backlight, cannot achieve pure black display, and the image quality is limited.

The LCD TV's screen is disturbed by the "backlight", which dilutes the color performance.

OLEDs do not require backlighting, so colors can be displayed "natively". The liquid crystal is obviously affected by the backlight because of the relationship between the WLED white light tube, just like the picture is forced to hit a strong light, which affects the image quality performance. In other words, the presence of the backlight not only affects the black field (dark detail) performance of the liquid crystal product, but also has a negative impact on the picture from beginning to end. The response time is a flaw in the dynamic fluency of the liquid crystal technology, while the backlight is a flaw in the image quality.

LCD technology is not the best choice for TV technology from the beginning, but it is more suitable for marketization, and the success of marketization can not let us ignore the shortcomings of LCD technology itself. The response speed and the impact of backlight system on image quality are The most obvious two major injuries. In fact, if compared with the recognized second-generation display technology OLED, the damage of liquid crystal technology is far more than that.

● About QLED quantum dot display technology

Many people mistakenly believe that QLED quantum dots are a new technology. In fact, QLED is just a new type of backlight system. The display products based on QLED technology still belong to the liquid crystal category. Its advantage lies in strengthening the poor performance of liquid crystal products WLED. The problem (of course, it does not reach the level of OLED), and the two major ills of light leakage and smearing still exist.

From the perspective of the industry practitioners, I hope that OLED display technology can be supported by more TV manufacturers, because it is very revolutionary, although the current cost is too high, but like LCD technology, everyone can work together, not only can be fast Reduce costs and tap more potential. Finally, we summarize some of the physical characteristics of OLED technology, and I hope you will look forward to it after reading it.

● Summary of the main advantages of OLED display technology

1, self-illumination, pure black black field performance, there is no contrast (no minimum brightness value)

2, the response time is thousands of times faster than the LCD screen, and there is no dynamic image sticking phenomenon.

3, the viewing angle has no dead angle, even the most extreme angle, the picture will not be distorted

4, high self-illumination efficiency, power consumption is much lower than the already energy-saving LED backlight

5, self-illumination without backlight, can be made thinner

6, manufactured on a special material substrate, can be bent display (soft display)

7, the low temperature characteristics are outstanding, below 40 ° can work normally, the LCD screen can not be done

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