OLED, organic light-emitting diode, also known as organic electro-laser display, is a typical semiconductor light-emitting technology. The technology can be applied as half of the lighting source technology, or as a kind of "matrix arrangement" compact display product application, known as the "dream" technology of human future light source and display technology. At present, the main development in the world is OLED display technology.
First, the advantages of OLED are more than you think!
The advantages of OLED display technology can be described as follows: liquid crystal display technology, plasma PDP display technology, CRT display technology, all the advantages of these three display technologies that have been popularized in the consumer and consumer market, and abandon most of them. Disadvantages, it has become the main feature of OLED display technology!
Specifically, the OLED display technology includes: the thinnest display can be realized to date; the easiest to integrate with various touch screen technologies; the highest luminous efficiency and energy saving level; the display of any shape, the flexible device, and the curved display can be realized; The best effect is to realize the existing and future 3D display technology; the viewing angle is huge; the color performance is excellent, and the technology advances enough to surpass any previous display technology; the environmental indicators such as changes in the use environment, temperature, pressure, etc. are relaxed; Fast speed; long service life; simple preparation structure, low material consumption, manufacturing can mainly inherit TFT-LCD technology and production line; theoretically, the cost per unit display screen is the lowest...
At present, the main shortcomings of OLED display technology are mainly concentrated on the two aspects of low maturity of the industry and uneven aging of the three primary colors. But the former will naturally solve with the passage of time, and the latter is not a technical problem that cannot be solved.
Second, OLED is the "fantasy" technology discovered in the most inadvertently
One night in 1979, Dr. Deng Qingyun, a Chinese scientist who was engaged in scientific research at Kodak Company, suddenly remembered that something was forgotten in the laboratory on his way home. Back in the lab, he found something bright in the dark. Turning on the light, it turns out that an organic battery for experimentation is shining.
OLED research began here. Dr. Deng is therefore known as the "father of OLED."
OLED technology is a special semiconductor technology, diode technology. A crystal diode is a special electronic switching device that enables a unidirectional conductive path. The conductive particles in the diode can only move from one direction to the other. Therefore, the diode can be used as a special "switch", for example, many components in a computer CPU are composed of such an electronic switch.
The difference between OLED technology and traditional crystal diode technology is that when electrons move from one side to the other inside the diode, there will be an "energy level" transition - that is, electrons are detached from the atomic surface on one side, on the other side. In the process of capturing another atomic surface, the energy of the electrons is reduced, and the excess energy is emitted in the form of photons. Due to the difference in atoms on both sides, the magnitude of the emitted energy in electron migration is different. The performance is that the wavelength of the light wave is different, that is, the color we see with the naked eye. OLED technology is a technology that uses special organic materials to achieve the above special diode construction.
Third, OLED is currently the only high-resolution pure solid display technology
A major feature of OLED display devices is that they are structurally all solid close contact structures, which are inherently insensitive to atmospheric pressure and the like, and the devices are more robust.
Traditional CRT tube technology must rely on a vacuum that is not small enough to accelerate and cheapen the flow of electrons. This not only makes the CRT product huge, but also the cause of the "explosion" of some CRT TVs. At the same time, even though the thicker glass and metal structures used in CRT TVs protect the safety of the picture tube, the vacuum structure must not withstand the pressure of atmospheric pressure, so it “has not looked so strongâ€.
PDP plasma technology can be said to be the result of the extreme development of CRT technology: each display unit of the plasma display technology is similar to a small CRT tube - except that the unit emits not an electron beam but ultraviolet light. Ultraviolet light no longer needs to be accelerated and deflected, but directly bombards the phosphor of its surface. This structural feature of the PDP makes it impossible to get rid of the structural design of "vacuum bubbles". Although it can be filled with inert gas to balance the atmospheric pressure, these filled inert gases will “actively break through†the glass structure of the PDP display unit under the low pressure of the plateau environment. Therefore, the use of PDP Air pressure has certain requirements.
The characteristics of LCD TVs naturally require the use of "liquid crystal" materials. The physical state and positional stability of such a flowing liquid substance are also not good, especially in the low temperature environment. Therefore, the liquid crystal display is not suitable for display under special temperature conditions such as low temperature and high temperature.
Comprehensive comparison, OLED display technology uses all solid state physical structure, the most extensive in the applicable environment!
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