OLED: the successor of LCD TV

According to Insight Media, there are many start-ups in the development of new display technology, the failure of most new technologies is due to the cost of not able to compete with the declining LCD and plasma technology. There are two bright prospects for the current technology, that is, OLED and EPD (ELectrophoretic Displays).

Market research firm DisplaySearch OLED forecast market value, from the year 2007 to $500 million and $600 million for the year 2008 to the year 2009, the growth of $1 billion 100 million, $2 billion for the year 2011, year 2012 and year 2015 of $3 billion, $5 billion 500 million; at that time, the TV will be the first time beyond the application of mobile phone. In addition, iSuppli (electronic paper mostly uses EPD Technology) the market value will be from the year 2007 to 2012 annual growth of $3 million 500 thousand, $290 million; another market research firm DisplayBank predicts the year 2012 will reach $650 million, the year 2015 will reach $2 billion 100 million. Insight Media expects sales of e-readers in the year 2013 is expected to close to $10 billion. The key to the success of the new technology in terms of existing technology is that it can provide the characteristics of the lack of existing technologies, such as the more frivolous. Display the new technology of other prospects Unknown Chaotic including Qualcomm iMOD, LiquaVista electrowetting display, Kent Display cholesteric LCD, Pixtronix lateral MEMs display; these new technologies have some characteristics, but it is not enough to find a suitable application.

OLED: the successor of LCD TV

Many people have called for a new generation of OLED after CRT, LCD, PDP display technology, even said that it represents the development direction of future display technology, display technology compared with the previous two generations, OLED has a lot of advantages in technology.

The key component of OLED is actually indium tin oxide (ITO), which is often referred to as transparent conductive film. It is connected to the positive electrode of the power, plus another metal cathode, including the hole transport layer (HTL), EL (light-emitting layer) and electron transport layer (ETL), etc.. When the power supply to the appropriate voltage, the cathode hole and cathode charge will be combined in the light-emitting layer, resulting in light, according to its formula to produce red, green and blue RGB primary colors, constitute the basic color.

In fact, OLED TV can realize the program or a lot, the most famous is the active matrix organic light emitting diode, also referred to as AMOLED, which is composed of a cathode, organic active layer, TFT array and substrate components, including organic polymer stack emission layer and a conductive layer deposited on the substrate with a thin film transistor. The implementation of organic materials, the technology can also be varied, which are commonly used to direct pixel array ink-jet printing method in TFT, the charge through the bottom electrode and the surface of the display of additional space between the transparent layer to excite the organic layer to produce light, it is normal I said active OLED display device is mainly used in large screen and high resolution. SONY OLED TV

Passive OLED is not using the TFT substrate, the display device generally applies to small size (mobile phone, MP3, etc.), because of its instant brightness and the cathodic scan is proportional to the number of columns, so we need to operate under high pulse current, but will shorten the life of the pixel. However, compared to the high cost of active OLED, passive low cost, production is relatively simple.

Unlike the traditional LCD display, OLED does not require a backlight, a very thin organic material coating and glass substrate, when the current is passed, these organic materials will shine. And OLED also has the following advantages, especially with the LCD display technology contrast:

No radiation, because the thickness of the OLED is only a few millimeters, only the ordinary LCD display 1/3, it can also be in the

The same material on the substrate, so that it can be made in the shape of a wide variety of curved shapes, with the need for flexible display devices;

Thin soft, OLED can be made very thin, even can make the thickness of 3 cm below the TV screen; it is very soft and very light, can be mounted in a soft matrix material, can be used for the production of electronic newspapers, or be embedded on the clothing;

The cost is low, compared with the LCD complex and sophisticated structure, OLED is only a low-level, simple manufacturing process, material and process requirements are lower than LCD, so the production cost is relatively low, allegedly, if OLED can realize mass production, the cost to save at least 20% than LCD;

Adaptability, we know that LCD LCD TV on the environmental requirements are relatively high, a little discomfort will appear in this or that kind of problem, we use it to worry about a lot. The OLED can be in the -40 to +85 degrees of normal display, regardless of cold or heat, can easily complete the image display;

No back, small power consumption, because OLED uses organic light-emitting materials, you can shine, unlike LCD using light emitting, so OLED LCD screen brightness is better than high, color reduction will be better; OLED driving voltage is as low as 2 to 10 volts, the power consumption of the display is 40% less more than the same size LCD display;

Visual angle is large, OLED has a wide viewing angle of 160 degrees or more, basically the same as the CRT, and the traditional LCD is the existence of a small perspective, with the increase of the visual angle, the image color distortion;

Fast response, OLED response time in microseconds, can reach LCD hundreds of times, or even