As the price of TVs has dropped again and again, the prices of large-screen TVs are now approachable. Not only the screen size has increased, but some TV technologies have also begun to penetrate downward. 4K HDR TV is no longer just a high-end standard, and it is more widely used in mid-range and even low-end products. But when you buy the TV home, you will find that HDR does not seem to improve the quality of the picture, but sometimes makes the picture worse. Yes, you may be the victim of "fake HDR".
True HDR does have a considerable improvement in picture quality. In TV picture quality, the current resolution, color gamut, grayscale, frame rate and other issues have been improved with the advancement of technology, but the current TV content still uses the SDR standard, which allows the previous TV to always be in the brightness dynamic range parameter Maintain a low level.
The emergence of HDR technology has finally made up for this short board, which enhances the TV brightness and contrast in all directions. The increase in brightness makes the picture more rich in details, will not be destroyed by a slightly higher or lower brightness, and more completely and truly present the original content of the picture.
What are the essential elements of a real HDR TV? At this time, it is not only necessary to see whether the TV is equipped with HDR technology and equipped with an HDR decoding chip, but also need to pay attention to whether the TV complies with the corresponding HDR standard. The current mainstream HDR technology standards are HDR10 and Dolby Vision, which can be seen when buying a TV or when browsing online shopping pages.
Dolby Vision is the latest HDR standard developed by Dolby Corporation and contains a complete set of solutions. It uses a hardware solution to enhance each frame by frame-by-frame rendering, and supports 12bit color depth to make the TV excessive and more smooth in color.
In some high-end TVs launched by Samsung, Sony and LG, we can often see the HDR10 standard figure. Among them, "10" of HDR10 refers to 10Bit, that is, the TV supports 10Bit color depth. But now HDR10 has also begun to upgrade, and HDR10 + has begun to enter the market. Compared with HDR10, which only processes all the data of the film source, HDR10 + allows the image quality to be equal to that of Dolby Vision. At the same time, the higher degree of freedom also makes HDR10 + a popular target for TV manufacturers.
So for TV products, even if the low-priced products are equipped with HDR technology, it is not a real HDR TV. Consumers who have a higher demand for TV picture quality can purchase TVs based on different HDR standards.
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