According to the current market share of flat-panel color TVs, plasma color TVs only account for 1%, LCD TVs are the mainstream, in general, the picture is LCD TV is more stable, and the picture quality is more clear, plasma TV dot particles are relatively thick, close look Obviously, but it is less obvious from a distance, and plasma TVs are relatively dark. LCD TVs sell more expensive than plasma, but it is not that plasma TVs are not good. You can buy them according to your actual needs.
Now the mainstream size in the living room is 32 inches - 42 inches, the standard size of 26, 27 inches in the bedroom is enough, the domestic brands Li Haixin, Xoceco are doing well, Hisense advocates full functionality, Xoceco is more fashionable, Reference purchase.
LCD and plasma together support the sky of flat-panel TVs. There is no conclusion, and consumers' choices are also based on specific circumstances. However, many consumers don't know much about the two. Below we introduce some related indicators of LCD and plasma TV, hoping to increase consumers' knowledge in this area.
Color expression
The color realization of plasma is the same as that of CRT TV. It is realized by the excitation light of red, green and blue phosphors, so the color expression can reach the level of NTSC CRT color TV (NTSC). The color of the liquid crystal is realized by the white backlight through the red, green and blue color filters. At present, the best color performance range that can be achieved by the CCFL backlight is 75% NTSC, so the color vividness of the liquid crystal is poor.
Power consumption problem
Excessive power consumption has always been a place where plasmas have been criticized. The industry has made unremitting efforts to improve the efficiency of plasma by years of improvements in discharge cell structure, gas formulation ratio, electrode shape and drive circuit. From the early 1.2lm/W to 1.8lm/W in the previous two years, and now to 2.5lm/W, the 42-inch plasma power consumption has dropped from 400-watt to more than 200-watt.
The luminous efficiency of the fluorescent tube of the LCD TV is as high as 30~100lm/W, and the luminous efficiency of the CCFL backlight of the large-screen LCD TV can be 50~60lm/W, which is more than 20 times of the plasma, but after being assembled into the display, the total The backlight utilization is only about 5%, far less than the power saved.
Life problem
The lifetime indicators of liquid crystal and plasma are usually seen as the time when the brightness is reduced to half, not the average trouble-free working time. Due to the use of phosphors on CRTs, early plasmas have insufficient UV-resistance to plasma discharges and are aging faster, resulting in insufficient lifetime. However, a new generation of long-life, high-brightness plasma-specific phosphors has been commercialized, which has more than doubled its life.
The cycle of TV update is generally long. Many consumers use it for 10 consecutive years. At present, the life of backlights for TV sets has reached 50,000 to 60,000 hours, which can fully meet the long-term requirements of consumers.
In liquid crystal (LCD) and plasma (PDP) å° å° çš„ çš„ å£ å£ èˆ† 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 舆 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶The group's executives said that a series of experimental data show that plasma is superior to LCD TV in terms of brightness, contrast, reaction speed, viewing angle, reducing visual fatigue, energy saving and cost performance.
According to the "2005 Tablet TV White Paper" released by the Information Resource Development Department of the National Information Center, the overall sales volume of flat-panel TVs will be around 4.2 million units next year (2006), including 3 million LCD TVs, accounting for 73.3%.
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