From intelligent advertising machine to high-end TV, the market of LIQUID crystal display screen is being swallowed step by step, and OLED liquid crystal display screen begins to rise. The performance of OLED display screen in smart phone market goes without saying. Influenced by the trend of comprehensive display planning and foldable display screen, Apple is also engaged in the development of OLED LCD display screen.
I do not know when to start, OLED LIQUID crystal display screen gradually to the mainstream of the market. From intelligent advertising machine to high-end TV, the market of LIQUID crystal display screen is being swallowed step by step, and OLED liquid crystal display screen begins to rise. The performance of OLED display screen in smart phone market goes without saying. Influenced by the trend of comprehensive display planning and foldable display screen, Apple is also engaged in the development of OLED LCD display screen.
In the LCD TV market, the situation is not as absolute as intelligent advertising machine market, but in 2018, the global SALES of OLED TV panel will hit the 4 million mark, maintaining a trend of rapid growth. Together, in terms of the proportion of high-end TV shopping malls, HIS research data shows that among TV products priced above $2,500, OLED LIQUID crystal display screen products account for more than 60% now. It can be seen that both intelligent advertising machine shopping malls and LCD TV shopping malls, OLED display screens have given a very bright performance, and the proportion of high-end shopping malls is increasing.
Reasons for promoting the popularity of OLED
OLED liquid crystal display screens can be widely popular, the most important is still in its display function. Thanks to its self-illumination properties, OLED displays offer a wider range of viewing points. OLED displays also offer nearly unlimited contrast. That said, OLED screens can deliver extreme black-field performance. OLED screens also have a wider color gamut. The beauty of OLED screens is noticeably more pleasing than the lightness of LCD screens.
The lack of a backlight module makes OLED LCD screens thinner, and OLED TVS thinner, too. In the future, OLED TVS may be paper-thin when the technology reaches a certain stage.
Even though OLED displays are pretty good, there are still a lot of customers in stores who firmly support LCD screens. The reason is that a large number of customers suffer from eye irritation after looking at the OLED screen for a long time. Once you switch back to the LCD screen device, the symptoms will disappear immediately.
Thus, OLED screens may be harmful to human eyes.
However, after professional research, we can know that the problem of OLED screen eye injury depends on the individual constitution. It is true that some customers experience symptoms such as visual fatigue when viewing OLED screens, but there are still a large number of customers who say they are not affected.
The culprit is PWM dimming
The brightness control of PWM dimming is not linear, but depends on the relationship between lighting and quashing frequency. That is, in unit time, when the display screen is bright, it means that the number of on-off alternation of the screen is high, while when the display screen is dark, the number of on-off alternation of the screen may be low.
This means that the brighter the OLED screen, the higher the strobe (the number of times the screen comes on and goes off). The darker the screen, the lower the flash. IEEE has the same data display, the USE of PWM dimming OLED screen, to avoid eye injury should at least control the screen flicker frequency above 1250HZ. If you want to do not affect human health at all, but also to raise the stroboscope to more than 3000Hz. However, the current mainstream OLED screen stroboscope is basically maintained between 200HZ-500Hz, which is far below the IEEE health standard.
And now the LCD liquid crystal display screen so steady on, so there will be no stroboscopic problems, so relatively safer. But it must be clear that the LCD is also capable of PWM dimming. Just follow the continuous development of skills, to today's PWM dimming LCD screen has been screened.