Organic Light-EmitTIng Diode (OLED) is also known as organic electro-laser display and organic light-emitting semiconductor. Founded in the laboratory in 1979 by Chinese-American professor Ching W. Tang. OLED display technology has the advantages of self-illumination, wide viewing angle, almost infinite contrast, low power consumption, and extremely high reaction speed. However, as a high-end display, the price will be more expensive than LCD TV.
The organic light-emit TIng diode (OLED) is a patented display technology developed by Kodak that uses organic polymeric materials as a semiconductor material in light-emitting diodes.
OLED display technology is widely used in mobile phones, digital video cameras, DVD players, personal digital assistants (PDAs), notebook computers, car stereos and televisions. OLED displays are thin and light because they don't use backlights. The OLED display also has a wide viewing angle of up to 160 degrees, and its operating voltage is two to ten volts (volt, expressed in V).
The new OLED-based technology has flexible OLED (FOLED) technology, which makes it possible to make highly portable and folded display technologies possible in the future.
OLED is not expected to be goodFive years ago, it was said that OLED has been recognized as a replacement for liquid crystal, and OLED TV will be popularized in 2-3 years, and technical problems can be solved.
Time is up to today, and the problems of high cost, high price, low yield, and "short-lived" are still there. Of course, some people will say that now, in another 2-3 years, now we are not a problem facing the problem, because no one can stop the wheels of OLED. . .
Whether it is good or bad, there are different opinions in the industry. Can OLED replace LCD? Why did a company make half of it suddenly give up? Where does the voice questioning OLED come from? Today, the author will come to talk to you.
OLED technology must become a development trend
It is a matter of time before OLEDs can replace LCDs, just as CRTs are replaced by LCDs. Better display performance, a new backlight mode, and more robust plasticity are all good enough for OLEDs to completely replace LCDs. But is time really coming? Driving the display of technological alternatives in the industrial sector is often not the technology itself, but the commercial interest.
OLED TV still do not do? This is a problem
Enterprises are never afraid of no market. Regarding OLED TV, we can divide them into three factions: 1. Focus on OLED TV; 2. After trying for a while, it seems to find "problem", so it becomes a wait-and-see attitude; Stick to the LCD position.
We can say that OLED is rapidly emerging. It can also be said that OLED is a new development method that is completely different from "ALED, BLED, CLED", and it is not excluded that all the products in the future will be labeled with OLED.
Some people started to force OLED, in fact, the reasons are nothing more than three aspects: 1, money: the most intuitive is the direct comparison of the price of ordinary LCD TV and OLED TV, of which the profit rate can also be imagined. 2. Market: Whoever is advanced, who has the right to speak. 3. Enterprise layout: Prepare the OLED market layout early and wait for the market opportunity.
So now I haven't done OLED, that is, "do it" and didn't start doing it. What are they thinking? Let's take a look at it: 1. There are many product problems: I mentioned earlier, low yield, burnt screen, residual image, etc. 2. The cost is too high: now it is basically losing money to earn money; 3, waiting for the opportunity: Everyone is waiting, waiting for some product problems to be solved, the technology is guaranteed, and there is really a market to start doing.
Why do you see OLED TVs in the short term?
In the short term, it is very difficult for OLED TV to popularize or replace LCD. In the editor's view, the main reason is 8:
1, the price is expensive: the same size, the price of a new OLED TV is about 1.5-2 times higher than the price of an ordinary 4K LCD TV. The price is too expensive, how will consumers choose?
2, high cost: technology, panel factors, OLED TV production costs are higher;
3. Low production capacity: Due to the high cost, many companies indicated that it is not possible to achieve mass production in the short term;
4, low yield rate: large-size panel production is difficult, resulting in low yield;
5, the market is not mature: only some brands are doing, the number of products is small, otherwise no one will do half of it;
6, short life: self-illumination performance is seriously attenuated, the product life is less than half of the LCD TV;
7. Poor stability: The most widely used a-Si TFT technology in the LCD industry has the advantages of good uniformity, simple process, mature technology and low cost. However, due to its low carrier mobility, it lacks the ability to drive OLEDs. And there is a problem of threshold voltage drift, which is used for the fatal disadvantage of poor performance stability of the OLED;
8, picture quality problems: OLED products have residual image, short life, image sintering (each can not exceed 4 hours).
Summary :
The LCD era has not passed, and the short-term OLED TV's desire to replace the LCD TV is unachievable.
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