The product of technological innovation LED LCD TV comparison of advantages and disadvantages

2008 LED technology has been wonderful interpretation of the world, last year, the opening ceremony of the Beijing Olympic Games in the air slowly rise of the Olympic rings and the great scrolls are LED masterpiece, is an unprecedented LED super light show. It is also in this year, LED backlight technology is applied to LCD TV and mass production, which set off a wave of innovation in the field of LCD tv. However, the major manufacturers are pushing high-end LCD TV LED did not imagine so beautiful, what is hindering its development path?

The product of technological innovation

Due to the traditional color TV coverage of the color gamut is only 65% ~ 75% of the standard, the color range is small, it is difficult to show the perfect reality of grassland, sea, maple forest and other natural scenes. Therefore, the traditional LCD TV has some defects in color reduction.

Nowadays, the fierce competition in the market and the continuous improvement of the taste of the user, the manufacturers are constantly looking for alternative products to improve the traditional LCD TV color gamut narrow defects. Finally, LED backlight technology has been successfully applied to LCD tv.

In the Chinese market, the joint venture brand LCD TV price is always higher than the domestic brands a big cut. December 2008 domestic brands launched a storm to seize a large number of joint venture brand market share, but the joint venture brand did not follow up substantial price cuts.

In the LCD panel and the high cost to fight low-cost domestic brand reasons, joint venture brands are not willing to join the price war and make long-term painstaking efforts of the high-end brand image and to vigorously promote the development of be destroyed on one day, LED LCD TV, extend the advantage in technology, continue to implement the strategy of winning profit.

Market matures and the impact of the financial crisis, the sharp decline in the demand for LCD TV, the market needs a new product to focus attention, break the deadlock, stimulate consumer desire to buy. As a result, LED LCD TV was born at a time of distress, shouldering the mission to rescue the market, quickly rushed to the forefront of the market.

Comparison of advantages and disadvantages of LED LCD TV

Advantage:

Ultrathin

The thickness of the traditional LCD TV is usually about 10cm, while the SHARP LED LCD TV thinnest place is 2.28cm, SONY LED thinnest body is only 9.9mm. SONY LED LCD TV can do so thin, because the body uses a Edge light backlight mode. This way is more common in the notebook PC, the application on television, so that the thickness of the fuselage has a thin leap.

Environmental protection and energy saving

In the traditional LCD TV backlight used - CCLF cold cathode fluorescent lamp, containing harmful to humans. Although manufacturers are trying to reduce the mercury content in the fluorescent tube, but completely mercury free fluorescent tube will bring some new technical problems. The LED backlight does not contain mercury, in line with the green fashion. LED backlight is also very power-saving. LED internal drive voltage is much lower than CCFL, power consumption and security are better than CCFL.

Long life

Different CCFL rated service life (Ban Liang) between 8000 ~ 100000 hours. In order to enhance the performance of the use of improved design of CCFL backlight life will be lower. The LED backlight can reach two times the CCFL. Therefore, the LED backlight source life is usually longer than CCFL.

Wide gamut

According to the different color, LED can be divided into white LED backlight and RGB-LED backlight. White light LED technology is the main advantage of low power consumption, and the advantage of RGB-LED backlight is excellent color performance. RGB-LED backlight can emit high purity red, green, blue light LED devices to achieve a wide range of traditional CCFL light source can not reach the gamut. At present, the mainstream RGB-LED backlight can reach 105% of the NTSC color gamut, more powerful LED devices, can achieve more than 120% of the NTSC color gamut.

Inferiority

Expensive

LCD TV market at the present stage, LED LCD TV is not much, but the price is not expensive, usually 2 to 5 times the ordinary LCD tv. Samsung 70 inch LED LCD TV reference price of $400 thousand, Samsung's 55 inch LED LCD TV reference price of $39999. SONY 55 inch LED LCD TV price is also $39999. SHARP 65 inches LED reference price of $139999, SHARP reference price of 52 inches LED is $99999. Hisense 42 inch LED LCD TV priced at $19999.

Poor heat

LED backlight large amount of heat, working time is too long and high temperature easy to make brightness and color drift. So large size LED LCD TV usually need to add heat sink.

Market competition determines the direction of development

At present, in the Chinese market LED LCD TV brands include SHARP, Samsung, SONY, PHILPS, LG, Hitachi, Xia Xin and Hisense. Although they may have subtle differences in the application of LED backlight technology, but the names are announced LED LCD tv. In the above LED LCD TV manufacturers, the number of joint venture brands far more than domestic brands, we can see the joint venture brand in the field of LCD TV LED seize market opportunities.

If you want to have a superior image quality, you must add a sufficient number of LED (LEDs). Although the large screen LCD TV is expensive, but the current technical difficulty is smaller than the size of the LED tv. Therefore, the majority of LCD TV manufacturers are introduced in the first 70 inches large screen LCD TV