Haimeidi Q5 four generations will soon be listed to improve the overall quality of the five aspects

(2) Color depth: 10bit

The resolution is referred to as two-dimensional image resolution, that is, flat image quality performance. When the color depth is added, the screen is raised to a three-dimensional level. Yes, not the color gamut, but the color depth. The difference between color depth and color gamut is that the former represents the number of colors that can be displayed, and the latter represents the range of colors that can be displayed, that is, the distinction between quantity and quality.

Ultra-high definition Blu-ray standard specifies a color depth of 10 bits, that is, capable of displaying 1.07 billion colors (2 colors of 10 for each color of RGB are 1024 levels, and 1.07 billion (1024×1024×1024) for RGB colors. Color collocation). The ordinary Blu-ray standard supports 8 bit color depth, only 16.77 million colors, the gap is wide. Q5 fourth generation took the lead to meet the ultra-high-definition Blu-ray standard, hair color number of up to 1.07 billion colors, able to display 1.07 billion colors, compared to the ordinary 8bit video 16.7 million colors, increased by 64 times, a higher color depth can increase the picture in 3D The meaning of the resolution, especially the display of the halo, the color transition around the light source will be more natural and realistic.

A higher color depth can increase the resolution of the picture in a three-dimensional sense and bring about a smoother color transition performance. Especially when the display glows, the color transition around the light source will be more natural.

(3) Color gamut: BT.2020 color space

The BT.2020 color space has been defined by the ITU International Telecommunication Union as an image signal color gamut standard in the 4K/8K era, and it is also one of the standards for Ultra High Definition Blu-ray. The general Blu-ray standard uses the BT.709 color space, which covers only 35.9% of the BT.2020 color space. The latter is the largest color space in current display devices, covering 75.8% of the CIE 1931 color space.

(4) Contrast: Core HDR

HDR is not the first concept put forward in ultra-high definition Blu-ray, but it is critical to the improvement of picture quality, and is the most striking place in the ultra-high definition Blu-ray standard. HDR, with its high dynamic contrast, is displayed on the screen and is able to take care of the dark and highlight details at the same time, bringing a dynamic range closer to the human eye.

The essence of HDR is the extremely wide dynamic range, or what we call brightness levels. For example, in the same picture, the darkest pixel brightness is 2cd/m2, the brightest pixel brightness is 9890cd/m2, and the Q5 fourth generation supports HDR. Through this technique, you can see very clear details of the shadows and highlights. detail. If you don't support HDR box, then you can only see a mass of black or a group of bright, many details can not be shown.

(5) Frames: 60p

The number of frames represents the number of frames contained within a one-second video. The higher the number of frames, the more smoothly the picture that the human eye observes, and the less the intermittent feeling.

Ordinary Blu-ray standard frame number is 24p, ultra-high definition Blu-ray standard can support 60p. So long as the content supports the high frame number, playing Ultra HD Blu-ray disc can get more smooth picture performance.

Five-in-one comprehensive image quality improvement

4K, 10bit, BT.2020, HDR, 60p, [color=rgb(51, 51, 51) !important] Haimeidi Q5 four-generation all-in-one five-in-one image quality improvement. Then add a new H.265/HEVC code, the screen performance must be crushed ordinary Blu-ray, test performance, please wait and see.