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>> OLED, quantum dot frightened? New OLCD technology arrives 10th,May,2018
What's the difference between OLED and OLCD?
The battle for the next generation of display technology has not been eliminated, and OLEDs, QLEDs, ULEDs, and MicroLEDs are now emerging as OLCDs. People can not help but ask, this "OLCD" and OLED look "like this", in the end what is the difference? Today, let's talk briefly about the emerging display technology OLCD.
OLED, quantum dot frightened? New OLCD technology arrives
OLCD flexible screen developed by FlexEnable
In fact, this OLCD was originally applied to a small-sized screen of an on-board system. FlexEnable, based in Cambridge, UK, is a leader in the development of industrial flexible displays and sensors for organic electronics, and has been developing flexible OLCDs. Speaking of OLCD (Organic Liquid Crystal Display) organic liquid crystal display, thanks to its high performance and low cost production process, OLCD is the only one that can provide large size, low cost, high brightness and display for flexible displays. technology.
On the Similarities and Differences of Two Flexible Display Technologies
As the current mainstream flexible display technology, OLED has become the display technology most likely to replace the traditional TFT-LCD with its excellent display performance and characteristics. The technical principle of OLED, I believe many friends have already understood, I will not repeat them. Let us talk about the different development directions of OLED and OLCD technologies in flexible display.
OLEDs are self-emission displays. There are no liquid crystal molecules inside the traditional TFT-LCDs. Therefore, substrates commonly used in flexible OLEDs can be better integrated on plastic substrates, including PET, PEN, etc., as well as metal foil substrates. In addition, there is an ultra-thin glass substrate, so that the OLED display can achieve flexible display functions such as bending.
OLED, quantum dot frightened? New OLCD technology arrives
However, the dimensional stability has become the biggest challenge in the production of flexible OLED screens for plastic substrates. Excessive dimensional change makes the mask repositioning extremely difficult, also limits the size of the transistor design, and easily creates internal stress between the interfaces of the organic and inorganic material layers, resulting in layer-to-layer delamination during bending. The technical difficulty of producing large-size flexible OLED panels is even higher. This is also a major cause of the current high cost of large-size OLED panels, and there are still certain difficulties in large-scale use.
How does LCD achieve flexible display?
So how does LCD achieve flexible display? Actually, as early as last year, the related research results published in the rattan pot laboratory at Tohoku University in Japan were published. The OLCD is based on a flexible low-temperature organic thin-film transistor (OTFT) backplane technology, which can be produced through TFT-LCD production lines that currently use low-cost plastic substrates such as TAC and PET. Compared with amorphous silicon, the electrical performance of the OTFT backplane is more excellent, which allows the plastic LCD to have the same display quality and reliability as the glass LCD, and also has a good ductility, while being slimmer, lighter, and Broken, able to adapt to a variety of surfaces.
OLED, quantum dot frightened? New OLCD technology arrives
OLCD display principle
At present, the thickness of FlexEnable's 4.7-inch OLCD screen can be 0.3mm, plus backlight 0.5mm, then the thickness of the whole flexible OLCD screen is 0.8mm, and the radius of curvature is 10mm. The whole screen is handy to experience, quite thin, almost comparable to the OLED screen. In the future, the screen can also be made lighter and larger.
It is expected that the flexible OLCD display will be put into production by the end of 2018, and before that, there will be demonstration products for display in the industry.
Compared with LCDs, one of the most obvious advantages of OLEDs is flexibility, but OLCD is narrowing the gap between flexible OLEDs and flexible display technologies have begun to show diversified development. The competition between technologies will inevitably promote the product's update iteration, and develop in a better direction. We are also willing to see that flexible display technologies can flourish and shine in the future.
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