Market research institute DIGITIMES Research pointed out that the three sales seasons in the Chinese mainland TV market are Labor Day, Eleventh Holiday, and Lunar New Year. The 11th holiday in 2009 is not only the 60th National Day of the mainland, but also In combination with the Mid-Autumn Festival, all TV companies have come to grasp the rare business opportunities to launch new LCD TV products, among which LED TV based TV (LED TV) is the main product.
Why do LCD TV operators pay attention to the development of the mainland LED TV market? DIGITIMES Research pointed out that according to the questionnaire survey conducted by the "China Household Appliances Market Joint Research and Research Group", the most concerned project among the consumers who plan to purchase LCD TVs is "LED backlight". This result shows that mainland consumers not only recognize LED TVs. Increased awareness and one of the main considerations when purchasing LCD TVs.
Therefore, on the eve of the mainland's eleventh holiday, not only the LED TV models of foreign TV operators began to distribute goods in the channel at the end of August, but the mainland color TV manufacturers listed LED TV models in September. Among them, the LED TV series products launched by Hisense and Skyworth are the most complete; although Konka and Changhong LED TV products are only 40? and 50?, the thinnest part of the fuselage can be achieved below 2 cm.
Although the mainland color TV industry launched the LED TV new product in the 11th holiday, the action is very positive, but the upstream LED backlight technology is not yet mature. Therefore, most of the related components are purchased from South Korean manufacturers, and a small part is supplied by Taiwanese manufacturers. Even so, due to the low barriers to LED patents in the mainland market, the industry will be attracted to the mainland market or cooperate with mainland color TV manufacturers in the future.
In addition, due to the significant decline in the price of LED backlight modules in 2009, the lowest price of LED TVs launched by the mainland TV manufacturers is 45% lower than that of foreign brands. Therefore, it is estimated that the mainland LED TV market will still have development potential, and the penetration rate will be available in 2010. Up to 9.6%, and will see 25% in 2012.
The Schottky Diode is another type of semiconductor diode which can be used in a variety of wave shaping, switching and rectification applications the same as any other junction diode. The main adavantage is that the forward voltage drop of a Schottky Diode is substantially less than the 0.7 volts of the conventional silicon pn-junction diode.
Schottky diodes have many useful applications from rectification, signal conditioning and switching, through to TTL and CMOS logic gates due mainly to their low power and fast switching speeds.
the Schottky Diode also known as a Schottky Barrier Diode is a solid-state semiconductor diode in which a metal electrode and an n-type semiconductor form the diodes ms-junction giving it two major advantages over traditional pn-junction diodes, a faster switching speed, and a low forward bias voltage.
The metal–to-semiconductor or ms-junction provides a much lower knee voltage of typically 0.3 to 0.4 volts compared against a value of 0.6 to 0.9 volts seen in a standard silicon base pn-junction diode for the same value of forward current.
Variations in the metal and semiconductor materials used for their construction means that silicon carbide (SiC) Schottky diodes are able to turn [ON" with with a forward voltage drop as little as 0.2 volts with the Schottky diode replacing the less used germanium diode in many applications requiring a low knee voltage.
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