Netbooks are using LED screen LED has occupied half of the day?

This book is destined to become one of the hot spots this year. In the recently concluded Taipei exhibition Computex 2008, ASUS, Acer, MSI and other traditional notebook computer manufacturers have come up with their own Internet products. For a time, the Internet has become one of the focus of the whole industry. Build the Internet boom in addition to increasing the performance of the growing power consumption processor is getting lower and lower, there is a hero behind the scenes - LED backlit LCD screen.

Acer Aspire one netbook with LED backlight display

In fact, this year there are aspects of notebook, such as apple MacBook Air; Lenovo ThionkPad X300; Lenovo U110 HP Tablet PC 2710P, these have been using LED backlight. At the end of July and the upcoming release of the new Centrino 2 platform, including ThinkPad T400, DELL Latitude E6400, HP Elitebook 6930p, almost all hot notebook you are concerned, from 8.9 inch to 15 inch, will use LED screen. Cause a LED notebook to occupy half of the day feeling.

So, what is the LED backlit LCD screen? Notebook LCD screen needs a light source behind the screen. At present, the majority of computers (including notebook computers) LCD screen used by the light-emitting source is a cold cathode fluorescent lamp (CCFL). The so-called LED backlit LCD screen is the cold cathode fluorescent lamp (CCFL) into a white LED light-emitting diode.

Cold cathode fluorescent lamp (CCFL), that is, a lamp tube

LED chip light

Compared with the cold cathode fluorescent lamp CCFL technology, LED backlight technology has many advantages. For example, the screen brightness uniformity is better, strong color expression. Read the SONY SZ series notebook friends will be impressed by its gorgeous display, and SZ series is the use of LED backlight technology. On the Internet, the display effect is only a by-product. LED backlight technology is the most attractive place in the thickness, weight, power consumption advantage. Since the LED backlight plate does not need a lamp tube, the thickness of the light guide plate is greatly reduced, and the thickness of the whole backlight plate can be reduced by about half. A decrease in thickness also means a reduction in weight. In addition, LED backlight LCD power consumption is also greatly reduced, can greatly improve the life time of netbooks. According to the results of the IT168 evaluation laboratory, LED screen power consumption is only about 60% of the CCFL screen. Speaking of the price of LED backlit LCD screen, we have to look back at the history of the development of LED backlight LCD screen in the notebook market.

The first laptop with LED backlit LCD screen from SONY. During the period from 2005 to 2006, SONY launched SZ series, TX series, G series, UX series for the first time using the White LED technology, not only in terms of weight decreased 26%, battery life is also extended by one hour, so that the industry was. Which SZ series almost become synonymous with the perfect model. However, the high price of the perfect --SZ series of cheap, almost all in 15000 yuan or more. Today, the use of LED backlight technology SZ series price is still high.

By 2007, Toshiba, Fujitsu, ASUS, DELL, apple, HP and other brands have joined in, but the problem is still high prices LED models. For example, DELL's XPS M1330, was priced at 9999 yuan, upgraded to LED backlight LCD screen also need to increase by $1800. Nevertheless, the price went straight to 12000 yuan XPS M1330 is still the cheapest LED books. This year, Lenovo, LG also launched LED models. Although the scale of "LED club" is bigger and bigger, but the distance with the average consumer has not changed much.

LED arch-criminal led backlit LCD screen high LED backlight module components with high cost, is about 2 times that of ordinary CCFL backlight module, and the larger the size, the higher the cost, such as the 40 inch TV module components cost $360. In addition to the high cost of the problem, LED backlight technology needs to solve many problems, such as bulk heat control. In addition, plus the module has not been standardized (such as Convertor Board, Pin number of different different foot, etc.) and CCFL with no mercury, OLED and SED and other next-generation display technology, W-OLED and CNT and other next-generation light source of the competition, so the popularity of stage LED backlit LCD screen on a laptop computer is difficult.

However, in recent years, the price of LED backlit LCD screen to reduce a lot. DELL XPS M1330 upgrade costs now less than 700 yuan. According to the disclosure of the LED industry, a 12 inch notebook computer, a thickness of 3.07 mm cold cathode fluorescent lamp (CCFL) board costs $15, while the LED plate thickness of 1.9 mm for the cost of $25, which is roughly 1.6 times the cost of the former. This is only a quarter of the price, is expected by the end of this year, the gap will be reduced to 1.2 ~ 1.3 times.

In fact, including LED backlight LCD screen, including the average price of LED industry products are down about 20%~30% per year. There is news that this year due to weak demand, the consumer market, manufacturers take the lead price competition and other factors, LED product prices will continue to decline further. LED backlight LCD development goals: 15% this year, 2011, 50%

Now the news reports every day, we are concerned about the well-known notebook, is already more than LED screen, this is true. However, these high-end notebook, the actual sales in the market, far less than six or seven yuan in low-end notebook. In the low-end notebook is more attention to the cost, just like Lenovo ideapad will use LED screen, the sun will not be used, but the big sales is the sun. So LED notebook looks like a lot of models, can be accounted for only 15% of the proportion of the year 08. But LED is still optimistic about the industry