CRT TVs and LCD TVs don't work exactly the same. CRT TV mainly relies on the picture tube to emit an electron beam, and realizes horizontal and vertical scanning movement through magnetic field deflection, forming an image composed of pixel units, each pixel unit is composed of R, G, and B three-color pixels. The LCD TV uses the photoelectric effect of the liquid crystal to display the picture, it needs a backlight, and the light forms an image through the distortion and flipping of the liquid crystal molecules.
Although the working principle of CRT TV is different from that of LCD TV, CRT TV is usually superior to LCD TV in terms of picture quality, color reproduction, dynamic performance, contrast, etc. This is because the "self-illuminating" nature of CRT TVs allows it to better reproduce colors, showing a more vivid and realistic picture effect. at the same time,CRThe refresh rate of TV can easily reach100 120 144Hz,It is smoother in **dynamic picture,There is no obvious drag phenomenon。
However, because the picture size of CRT TVs is generally smaller, while the size of LCD TVs is generally larger, it is necessary to weigh according to actual needs when choosing a TV.
In terms of longevity, LCD TVs are more durable than CRT TVs. The current LCD TV life can reach about 7-8 years, which is much longer than the life of CRT TV.
However, with the continuous development of technology, new 4K TVs, HDR and IMAX enhancement technologies are constantly improving the picture quality and ** experience of TVs, and these new technologies may subvert our perception of TV. We can imagine that the future of TV will become more intelligent, high-definition and humanized.