In the past, laser TV has "sprung up", quickly broke into the public eye, once infinitely beautiful, and even regarded as the next "successor" of the TV market, but from 2022, the performance of laser TV has become eclipsed.
Data from Zhongyikang, Owei, Luotu Technology, Omdia and other research data show that the domestic laser TV industry has experienced a historic scale shrinkage in 2022, and mainstream data shows that domestic laser TV sales in 2022 will be around 200,000 units, nearly 2-3% smaller than in 2021.
The reason why the laser TV market is shrinking from infinite scenery to eclipsing is that its products themselves are born defects, or laser TV products are not fully mature. Today, we will conduct a simple science popularization of the defects of laser TV, in order to provide consumers with a more objective view.
Brightness and contrast issues: dimness revealed in glow
Laser TV in the color saturation and dynamic range of the performance of excellent, but in the brightness and contrast is slightly insufficient, which leads to laser TV light resistance is extremely poor, in a bright environment to watch laser TV, the picture will often be a certain degree of interference, once the light is brighter, the picture will become gray, see the TV picture clearly, making it difficult to enjoy the real pleasure of watching movies.
It should be noted that laser TV does not match its advertised "4K picture quality" in terms of clarity, and more is the use of pixel shift technology to make the micromirror of the imaging chip diagonally shifted at a frequency of 120Hz, and the actual picture quality is only about 2K, which is what we often call "pseudo-4K". In contrast, LCD TVs perform better in brightness and contrast, and 4K has long become a mature technology in the industry, which can bring users more shocking visual effects.
Color accuracy and stability: Difficult to keep the real picture
Although laser TV has certain advantages in color representation, there are still problems in color accuracy and long-term stability.
Specifically, laser TV uses laser as a light source, and the light emitted by the laser is monochromatic light, mainly a mixture of red, green, and blue three colors. However, under different working conditions, the laser light source may have a certain wavelength shift or color unevenness, which will lead to color deviation.
At present, there are two main types of laser TVs on the market: RGB laser and red, green and blue three-color laser. RGB laser technology may have color balance issues when displaying colors, causing some colors to deviate from the standard color. The red, green and blue primary color laser technology may also cause color deviation because the light emitted by the light source cannot fully meet the characteristics of the required red, green and blue primary colors.
At the same time, laser TVs need color calibration during the manufacturing process to ensure that the displayed colors are accurate. However, color calibration standards from manufacturer to manufacturer may vary, and even individual differences may occur within the same batch of product. These differences can all cause laser TVs to be biased in displaying colors.
In addition, the color performance of the laser light source may decay after long-term use, resulting in the color performance of the picture is no longer accurate, which brings unnecessary distress to the audience.
Energy consumption and heat dissipation issues: the urgent need behind high energy consumption
The high energy consumption of laser TV has become the focus of many consumers and environmental protection advocates. Due to the high power demand of laser light sources, laser TVs consume a lot of energy when used for a long time, which not only brings high electricity bills to consumers, but also has a non-negligible impact on the environment.
In addition, the high energy consumption of laser TV has also led to the prominence of heat dissipation problems, some laser TV products have deficiencies in heat dissipation design, and overheating is easy to occur after long-term use, which brings trouble to consumers' experience.
Eye Care and Health Issues: Housekeeping Technology Reduced to Concept Marketing
In the development of laser TV, eye protection has always been regarded as its "housekeeping technology", because laser TV manufacturers believe that laser TV and other TV, projectors and other equipment, less damage to the eyes, because it uses diffuse reflection imaging, and is full pixel reflection, users look clear, comfortable, but also avoid harmful short-wave blue light, has a certain effect on protecting the eyes.
Indeed, laser TV manufacturers have taken some measures to reduce the potential damage of laser light to the eyes, such as using filters and optical designs to reduce light intensity and adjust distribution, among others. But the claim that laser TV is advertised as eye protection may be controversial because laser light itself carries a certain risk of eye damage.
Laser light is a high-energy, high-focus light that can cause damage to the retina if exposed directly to the eye. The risk is higher especially when viewed at close distance or looking directly at a laser source. Therefore, there are certain potential risks in the light source of the laser TV itself.
The Department of Ophthalmology of Beijing Children's Hospital affiliated to Capital Medical University has conducted visual fatigue tests on 4K ultra-large screen LCD TV and 4K laser TV, and the actual measurement of the professional doctor team shows that compared with laser TV, LCD TV performance seems to be more "eye-protective". This actual measurement has also once again triggered a discussion on the "eye protection problem" of laser TV, whether it is an innovative technology or a marketing gimmick, presumably it is also a matter of opinion and wisdom.
All in all, laser TV is not an absolute "eye protection" product, and the risk of eye damage still exists.
Write at the end
As an emerging technology, although laser TV has unique advantages in picture quality and color performance, it has a series of defects in brightness and contrast, color accuracy and long-term stability, energy consumption and heat dissipation, etc., and its long-term "eye protection" as a housekeeping skill has also been repeatedly questioned.
If the early laser TV quickly became a new force in the TV industry with marketing and innovative ideas, its inherent defects have now become the biggest obstacle to the popularity and wide application of laser TV, making consumers need to weigh their advantages and defects when making purchase decisions.
In the future, it is hoped that laser TV manufacturers can continue to improve and innovate to solve these problems in order to provide a better product experience and meet consumers' demand for high-quality visual enjoyment.