The fourth-generation display technology, laser TV
The fourth-generation display technology, laser TV
While traditional color TV manufacturers and Internet companies are seizing their respective market spaces, other companies have successively launched laser TVs known as the fourth-generation display technology in the industry, rushing to the living room market with large size and high image quality. After LCD and plasma, can laser TV become the next king in the TV field? Today, the topic of discussion is laser display technology, interested friends may wish to understand. Principles of Laser Display Technology Laser projection display technology (LDT), also known as laser projection technology or laser display technology, is a display technology that uses red, green, and blue (RGB) lasers as the light source, which can truly reproduce the objective world richly , Brilliant colors, provide more shocking expression. From the perspective of chromaticity, the color gamut coverage rate of laser display can reach more than 90% of the color space recognized by the human eye, which is more than twice the color gamut coverage rate of traditional display, and completely breaks through the color gamut space of the previous three generations of display technology. The shortcomings of human beings have realized the most perfect color reproduction in the history of mankind, so that people can see the most real and most beautiful world through the display terminal. The basic principle of laser display technology (Figure 1) The laser full-color display technology uses red, green, and blue lasers as light sources. Its working principle is shown in Figure 1. After decoherence, it is incident on the corresponding light valve, and the image modulation signal is added to the light valve. The modulated three-color laser is combined by the X prism and then incident on the projection objective lens, and finally projected onto the screen by the projection objective lens to obtain a laser display. image. Laser display technology can display more than twice the color of CRT, LCD, POP, and solve the unresolved problem of large color gamut color reproduction in the field of display technology. Technical advantages of laser display Laser display is a display technology that uses red, green, and blue (RGB) lasers as the light source. It can reproduce the rich and gorgeous colors of the objective world in the most realistic manner and provide more shocking expression. The laser display color gamut coverage rate can reach 90%, while traditional display devices can only reproduce 30% of the colors seen by the human eye. Therefore, laser display is called 'a revolution in the history of human vision.' The advantages of laser full-color display products are: 1. Large color gamut, rich colors, high color saturation, and its color expression is more than twice that of current traditional TVs; 2. Long life of the light source and low maintenance costs. The laser light source completely breaks the electro-optical conversion mode of the traditional light source, and the life span can be as long as 10 years, which is 10 to 20 times the life of the traditional light source; 3. The investment scale of production equipment is small, and the investment in laser display product production equipment can range from tens of millions US dollars to billions of US dollars are invested in installments; 4. Environmental protection and energy saving, power consumption is only 1/3 of traditional TVs, which is in line with the national policy of energy saving and emission reduction. In addition, the production of laser light sources does not use heavy metal materials that threaten the environment. Environment-friendly light source; 5. The potential for cost reduction is great. With the expansion of the industrial scale and the adoption of new technologies, it will revolutionize the design of laser display systems, which will greatly reduce the cost while improving the quality of display devices. Therefore, laser display technology can perfectly reproduce natural colors, and is the fourth generation of display technology after black-and-white display, color display, and digital display. The laser full-color display technology uses red, green, and blue lasers as light sources. Its working principle is shown in Figure 1. The red, green, and blue lasers are respectively incident on the corresponding light after beam expansion, shimming, and decoherence. On the valve, an image modulation signal is added to the light valve, and the modulated three-color laser is combined by an X prism and incident on the projection objective lens, and finally projected onto the screen by the projection objective lens to obtain a laser display image. Popular laser display technology products At present, the so-called laser TV is actually more similar to projection in form, but what is different is that it can project hundreds of inches of pictures within a distance of less than 1 meter. With the release of Hisense Laser Cinema, such products are technically divided into two camps, one is ALPD technology, and the other is laser cinema system. Both use laser display technology.