It may be that many consumers will say that the picture of laser television is cast on a white wall. A white cloth can be used to watch movies. Is there really so much emphasis on spending money on the anti-light curtain? The answer is yes.
Light curtain structure
Laser televisions generally need to use specially designed anti-light curtains, because laser televisions need to overcome ambient light and bring better picture quality. Laser TV curtains generally use a special optical sawtooth structure. The black light above the sawtooth structure blocks the light-absorbing layer. The bottom is a special paint structure that allows the true feedback of the projected image to create a realistic high-contrast image. Thus, the laser curtain has anti-ambient light. Increase the advantage of contrast.
The technical principle of laser television curtains can be understood in this way. Even though the grain structure and material price on the curtains are more complicated, the essence of the principle is to refract the light radiated from the bottom of the laser television to the eyes of the audience. The white wall is the effect of diffuse reflection, that is, the light below the white wall, the light is emitted around, so the brightness of the picture will be reduced, and the specially designed anti-light curtain is to focus the light to the audience's direction , so the screen brightness is higher. Anti-light curtains can be classified into light-resisting effects using physical structures, and optical coatings can be used to achieve light-resistance, depending on the principle of light resistance.
Hisense laser theater standard anti-light curtain
Hisense can be said to be the big brother of laser television. It not only completes 100% independent R&D and design on laser optical engines, but also has achieved more than 300 outstanding achievements on core patented technologies. And Hisense laser TV is equipped with Fresnel optical screen, and Fresnel optical screen is made by Chengdu Feisite Technology for laser television. Pfister FS series Fresnel optical screen is the most representative indicator of optical performance, with a gain of 1.2, representing the current high level of the industry, product design using a hard-screen metal frame of the entire screen design. It is resistant to ambient light interference and will not affect the quality of the user's viewing quality in a bright environment. The thickness is as low as 10 millimeters and no power is required, making it ideal for viewing and use in the living room.
Changhong laser TV is also equipped with Fresnel optical screen, with anti-ambient light interference, can reflect the laser light source into parallel light, so that the brightness and contrast significantly increased, bringing more clear and beautiful picture.
Ultra-violet laser television standard anti-light curtain
On June 28, 2017, millet's eco-chain brand, Mijia, released a laser television with a price of 9999 yuan. It cast a heavy weight for the laser television industry, but it did not include a light curtain. Immediately after July 25th, Zimi also joined the field of laser television. It officially released the Tm and 4P dual-color laser televisions T1 and the 1080P meters A1 and meters A1 Pro. The selling price was 79999 yuan, 22999 yuan and 29999 yuan respectively. . Not only did the author have just experienced the meters A1 selected by the line is a standard meter 100-inch light curtain, the market price is about 5,000 yuan. From this point of view, everyone should be able to think that there is a big difference in the selling price between the standard anti-light curtain and the anti-light curtain.
In general, light curtains still have a lot of scientific and technological content. They want good anti-light effects. At the same time, they increase the contrast ratio and bring about ideal image quality. Special physical structures or optical coatings need to be studied. At present, the domestic market does not have a large number of cottage anti-light curtains. Even if there are inexpensive imitations, the effect will be greatly discounted. Therefore, I do not recommend that consumers purchase anti-light curtains themselves. It is best to buy laser TVs and purchase anti-light curtains with factory logos.
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