The life span of traditional LCD screens is between 40,000 and 60,000 hours, and the more recent popular OLED screens have a life span of about 30,000 hours. If you look at the phone for an average of 3 hours a day, it can also last 10,000 days, or 27 years, which is far more than the average user’s replacement cycle.
OLED that is organic light-emitting diodes, in the cell phone OLED is a new product, known as “dream display”.
OLED display technology, which uses a very thin coating of organic material and a glass substrate (or flexible organic substrate) that emits light when an electric current is passed through it.
Nowadays, OLED screen has become the standard for high-end smartphones, compared with the traditional LCD technology, it is not only thinner, lower energy consumption, high brightness, can display pure black, faster response time, but also can be made into a curved screen, giving people a different visual impact
Today’s major international manufacturers are scrambling to strengthen the research and development investment in OLED technology, making OLED technology in today’s TVs, computers (monitors), cell phones, tablets and other areas of spiritual applications more and more widespread.
LCD screen and OLED screen differences
The cell phone industry in these two years the hottest words than “full-screen” and “under-screen fingerprint recognition”, if there are still phones can not support these two functions, it is estimated that many people will be seriously considered, after all, the under-screen fingerprint unlocking posture is more handsome, and want to use the under-screen fingerprint unlocking, but not only an additional under-screen fingerprint reader also needs an OLED screen.
Why under-screen fingerprint recognition can only be used in OLED screen? This is because it is relatively “soft”, OLED in the construction of only two layers of thin film and glass or plastic substrate, and through the OLED material self-lighting characteristics, can be without backlight module and color filter, also do not need the general LCD panel filling liquid crystal process, can achieve 0.5-1.8mm thickness. Nowadays, most of the under-screen fingerprint recognition is optical fingerprint program, so relatively in the use of optical fingerprint program, OLED screen will be more suitable.
Why can’t under-screen fingerprint recognition be used in LCD screen? This is because it is relatively “hard”, the working principle of LCD is mainly composed of two parallel glass plate, between the two layers of glass plate and then by the liquid crystal layer and polarizer, color filter layer and so on material composition. In simple terms, LCD is the need for backlight irradiation to display, so is the result of LCD screen than OLED screen thicker, light transmission is weaker, not conducive to the use of under-screen fingerprint identification.
Since OLED screen can use under-screen fingerprint recognition, why do not all cell phone manufacturers use OLED screen? This involves the advantages and disadvantages of LCD screens and OLED screens.
OLED screen has the advantage of being able to achieve the integration of on-screen fingerprints without opening holes, as well as a wide color gamut, but there are also certain defects, short life, easy to burn the screen (if the same screen bright screen for a long time, the screen will leave that long-term static picture traces), low pixel density, etc., and the overall technology is not mature enough, due to the low pixel density of OLED screen, it is difficult to have 2K, 4K screen.
LCD screen, although temporarily can not use under-screen fingerprint recognition, but, LCD screen is also the advantages of OLED can not be comparable, there is a natural DC dimming more eye protection, color is also natural, drawing people prefer LCD, screen life compared to OLED long, but also not easy to change color, also do not have to worry about using a long time after the problem of burning screen, which is also the reason why LCD loyal users like it.
In addition, LCD screen does not stimulate the human eye, will not cause eye fatigue, especially open eye protection mode filtering blue light, less damage to the eyes. oled screen will leave residual shadows, eye damage, even dimming can not be completely avoided.
Cell phones have become an indispensable “companion” in personal life, and it is basically difficult for everyone to quit it, so why not try to choose a program that is less harmful to you?
