At the just-concluded “(9th) China Flat Panel TV Market Development High-Level Forum†in 2013, Mr. Yan Shijing, deputy director of the Department of Electronic Information at the Ministry of Industry and Information Technology, emphasized in particular: In 2014, we will continue to promote color TV technology innovation, support 4K, lasers. TV development. This is also interpreted by the outside world as a signal for the full power of laser television.
However, in the LCD is still half the country, LED is booming, OLED sudden emergence of the situation, the "new generation" of laser television can eat it?
Intriguing Sentimental Fruits In fact, it is not accurate to describe laser television as something new. As early as 2006, Mitsubishi Corporation of Japan introduced a 40-inch laser TV; a year later, Sony's 55-inch laser TV was unveiled at the Consumer Electronics Show in the United States; in 2010, Mitsubishi launched a 75-inch laser TV. However, in 2012, Mitsubishi, which originally appeared as a pioneer in laser television, suddenly issued an official statement: “The current production model is no longer able to maintain the normal operation of the company, so the company no longer produces laser television; but for the sold products, we will continue Support parts supply and after-sales service." For a long time before, some domestic scientific research institutes also claimed to have developed "mature" laser television technology, but then there was no audio.
The reason why laser TVs "only smell the stairs, do not see people down" or even "half of the road" is actually very simple: the cost of the original design route is too high to solve the problem of marketization. Zhang Bing, research director of NPD Display Search, once calculated such an account for the reporter: “A laser light source needs at least 10,000 yuan on a TV. If you want to achieve better results, you need 3 laser light sources; The cost will reach more than 30,000 yuan." In addition, laser as a special energy source, its unique high thermal energy is also a test for the selection of television screens, whether it is a laser source with a direct screen or a rear projection image. Therefore, laser TVs, which have long been hailed as “revolution in the history of visual historyâ€, have been unable to be marketized for a long time and have been in awkward position for a long time.
Another way: The traditional road map to solve traditional problems has entered a dead-end road, and it is difficult to break through, forcing some technology companies to start thinking about seeking another law. In 2013, LG and China National Huaneng Film and Television Co., Ltd. invariably launched mass-produced laser televisions, and the starting size reached 100 inches. This is more or less surprising.
In fact, this is because these vendors have adopted new paths and new methods that completely subvert the tradition. Taking the APUS-20S laser TV sold by China Huaying as an example, it uses the world’s first ALPD laser display technology, combined with the world’s leading DLP imaging, UST projection and bionic screen display technology to completely get rid of it. The traditional TV's hot screen direct display and refresh strobe viewing methods and troubles. In addition to solving the high cost of traditional laser sources, the new type of laser television has a considerable breakthrough in the shortcomings of the existing mainstream flat-panel TVs: In terms of picture quality, the color rendering capability is 3 times that of LED LCD TVs, and the color gamut coverage is from LED TV's 62% increase to more than 90%, not only makes the picture more visually beautiful, rich and rich, at the same time, the sharpness has also been greatly improved with the increase of color saturation. What is more worth mentioning is that Hyun-screen laser TV has the absolute advantage of energy saving and environmental protection, and the power consumption is only 20-30% of the same size LED LCD TV, creating a new standard for global large-screen display energy-saving. ... These are all new opportunities for laser television to usher in the spring of industry.
Can you become a fourth-generation leader?
The industry generally believes that the current popular LED TV is in the third generation of TV technology. Before 2000, basically the CRT was the only one. After the CRT was made 34 inches, its oversized size and high energy consumption made it impossible for it to make substantive breakthroughs. After entering the new century, the LCD- and plasma-based tablet family quickly entered the home TV market. In the final game, LCDs have gradually become the mainstream of the market because they are backed by upstream and downstream manufacturers. However, due to technical limitations, LCD products are often criticized by consumers for color reproduction, smearing, and contrast. This also directly contributed to the LED's coming after 2007.
LED TVs are indeed more advanced than LCDs in terms of color reproduction, contrast, and ultra-lightweight, but they are still unsatisfactory in terms of color gamut and power consumption. Nowadays, it is difficult to make great efforts to push LED to a more serious situation in terms of oversized process flow. At the same time, LED screens with a size of 84 inches or more require a viewing distance of more than 6 meters in the living room, which makes many households use it. Consumers are discouraged.
All of these have become opportunities for laser TVs to “come in and out†– thanks to the new lighting and imaging path design, and the unique combination of mysterious and cold screens, a new generation of laser televisions can already be seen by human eyes. The pseudo-ecological perception under the model does not hurt the eye even if it is viewed at close range. This clears the way for the large screen into the common living room. According to calculations, if the new 100-inch laser television is placed in the living room, viewing distance can be as comfortable as 4 meters without dizziness. Undoubtedly, this is a great attraction for users who have a demand for living room theaters.
Regardless of visibility, eye protection, energy saving, and color performance, the advantages of laser television are quite obvious. However, the newly emerging new forces will not be easy to get a share of the competition in the TV market in 2014. At present, in the industry, many companies still do not have a clear understanding of the laser television technology and industry vision, and there are no clear reserves of resources; companies in different chains of the LCD TV industry are still weighing their current revenues and future benefits. - China's technological leadership in many areas and the lagging behind of the industry, and Chinese companies do not pay attention to research and development, are accustomed to "acquisitionism" has a great relationship.
As the industry's management and mentors, the government authorities should treat the laser television industry as an innovative sunrise industry and give adequate support in terms of policies and funds; especially in terms of laser display standards construction and industrial integration, Long-term planning and smart layout of government departments.
Perhaps in 2014, we will usher in a "mature" of lasers that are gradually maturing.
Signal
Response time refers to the response speed of the Liquid Crystal Display to the input signal, that is, the response time of the liquid crystal from dark to bright or from bright to dark (the time for the brightness from 10%-->90% or 90%-->10%) , Usually in milliseconds (ms). To make this clear, we have to start with the human eye's perception of dynamic images. There is a phenomenon of "visual residue" in the human eye, and the high-speed motion picture will form a short-term impression in the human brain. Animations, movies, etc. to the latest games have applied the principle of visual residue, allowing a series of gradual images to be displayed in rapid succession in front of people's eyes to form dynamic images. The acceptable display speed of the picture is generally 24 frames per second, which is the origin of the movie playback speed of 24 frames per second. If the display speed is lower than this standard, people will obviously feel the picture pause and discomfort. Calculated according to this index, the display time of each picture needs to be less than 40ms. In this way, for the liquid crystal display, the response time of 40ms becomes a hurdle, and the display above 40ms will have obvious picture flicker, which makes people feel dizzy. If you want the image screen to reach the level of non-flicker, it is best to achieve a speed of 60 frames per second.
I used a very simple formula to calculate the number of frames per second under the corresponding response time as follows:
Response time 30ms=1/0.030=approximately 33 frames per second
Response time 25ms=1/0.025=approximately 40 frames per second
Response time 16ms=1/0.016=approximately 63 frames per second
Response time 12ms=1/0.012=approximately 83 frames of pictures displayed per second
Response time 8ms=1/0.008=approximately 125 frames per second
Response time 4ms=1/0.004=approximately 250 frames per second
Response time 3ms=1/0.003=approximately display 333 frames per second
Response time 2ms=1/0.002=approximately 500 frames per second
Response time 1ms=1/0.001=approximately 1000 frames per second
Tip: Through the above content, we understand the relationship between response time and the number of frames. From this, the response time is as short as possible. At that time, when the LCD market first started, the lowest acceptable range of response time was 35ms, mainly products represented by EIZO. Later, BenQ's FP series came out to 25ms. From 33 to 40 frames, it was basically undetectable, and it was really quality. The change is 16ms, displaying 63 frames per second to meet the requirements of movies and general games, so 16ms is not obsolete. With the improvement of panel technology, BenQ and ViewSonic started a speed battle. ViewSonic started from 8ms to 4ms. Released to 1ms, it can be said that 1ms is the final controversy of LCD speed. For game enthusiasts, 1ms faster means that CS's marksmanship will be more accurate, at least psychologically, such customers should recommend the VX series of monitors. But everyone should pay attention to the grayscale response when selling. The text difference in full-color response may sometimes mean the same thing as gray-scale 8ms and full-color 5ms. It is the same as when we sold CRTs before, we said that the dot pitch is .28, LG just I have to say that he is .21, but the horizontal dot pitch is ignored. In fact, the two are talking about the same thing. LG has come up with a sharpness of 1600:1. This is also a conceptual hype. Everyone uses the basic screen. There are only a few companies on the list, and how can only the LG family achieve 1600:1, and everyone stays at the level of 450:1? When it comes to consumers, the meaning of sharpness and contrast is obvious, just like AMD's PR value, which has no real meaning.
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