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This is talking about the gray level, and level 8 is 2 to the 8th power, 256 bits. Level 16 is 2 to the power of 16. The more gray levels, the smoother the colors and image effects.
Grayscale, also known as the color scale or gray scale, refers to the brightness and darkness of the lightness. For digital display technology, grayscale is the determining factor in the number of colors displayed. Generally speaking, the higher the grayscale, the richer the colors displayed, the more delicate the picture, and the easier it is to express rich details.
The grayscale level depends mainly on the number of AD conversion bits of the system. Of course, the system's processing chips, memory and transmission system must provide the corresponding number of bits of support. At present, domestic LED displays mainly use 8-bit processing system, that is, 256 (28) level gray scale.
To put it simply, there are 256 variations of brightness from black to white. The three primary colors of RGB can be used to form 256 256 256 = 16777216 colors. That is, what is commonly known as 16 trillion colors.
The international brand display mainly adopts a 10-bit processing system, that is, 1024 levels of grayscale, and the RGB three primary colors can constitute 100 million colors.
Although grayscale is the determining factor in determining the number of colors, it is not said that the bigger the limit, the better. The increase in the number of bits processed by the system will involve changes in the processing, storage, transmission, scanning and other aspects of the system, and the cost will increase sharply and the cost performance will decrease. Generally speaking, 8-bit systems can be used for civilian or commercial products, and 10-bit systems can be used for broadcast products.
At present, some domestic manufacturers can reach 10 positions and 1024 levels of gray control. At present, Vision Light has implemented an advanced grayscale signal lossless processing algorithm, with a gray depth of up to 16bit, ensuring that there is no loss of grayscale details within the full brightness adjustment range, and the image is presented brilliantly.
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to display colors.
It should be possible only to do it.
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What is the highest gray level of a DR detector?
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Grayscale: The full-color display is composed of three primary colors, red, green and blue, and each color can be divided into 256 levels;
The color of red 2 is dark red 1, red 3 is darker than red 2, and so on until red 255 is the reddest;
The grayscale pair "P10-4S-1R1G1B" is the multiplication of 3 color levels, theoretically the higher the better, the more realistic the color;
However, at the same time, it is required to match the refresh rate, and the refresh rate can reflect the quality of the module chip and the quality of the module.
You need to find the matching grayscale and refresh rate, which needs to be observed according to the actual module debugging;
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If you choose the gray level of P10, you can choose the gray level 4096 and try the refresh rate, and you think it's okay.
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Gray level 256 is a primary color on the display screen (such as a full-color screen, there are three primary colors of red, green, lazy), from no bright to the brightest, and is divided into 256 grades. The gray level reflects the number of colors that can be displayed on the display screen. Such as full-color display, there are three colors, then the number of colors it can display is 256 * 256 * 256 =, the higher the number of colors, the better the effect, the more delicate, at present, the highest gray level of the domestic LED display is 1024 level, many control cards can set the gray level to 4096 or even higher, the gray level is not a linear gray level.
Any color that can be displayed on the display, from black to the brightest, is divided into 4096 levels. If red, green, and blue each have 4096 levels of grayscale, then the white should be 4096*4096*4096 grayscale level. 4096*4096*4096 is the number of colors that can be displayed on the display screen, and there is a difference between the number of colors and the gray level.
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That is, only the LED lamp beads in the display screen can be turned off or lit for control.
The resulting visual effect is: if the display is composed of red, green, and blue light beads, it can only display the following colors:
Red, green,
Blue, red + green (yellow in mixed colors),
Red + blue (purple in mixed colors),
Green + blue (the mixed color is cyan
Red + green + blue (mixed color is white), that is, only 7 colors can be displayed, plus all are not bright and displayed as black, a total of 8 colors.
Corresponding to this is the grayscale control mode, each color of the lamp beads, can be never bright, slightly bright, and fully bright, a total of 256 brightness levels, also known as gray levels.
Therefore, there is a grayscale control mode, and the number of colors that can be displayed is: 256 (red) * 256 (green) * 256 (blue) = millions of colors, which can display a variety of rich colors close to nature, and this kind of screen is also called a full-color screen.
o(∩_o~
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It's the function that the light beads of this screen can only turn on and off, which is just for the asynchronous control of the monochrome screen.
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There is no such thing as grayscale.
There's just brightness, and brightness, and those two are the same thing.
There's also the term grayscale, which is the process of taking the brightest to the darkest part of your monitor into different levels, like a staircase from top to bottom
It's roughly the same as the copy on the first floor, so if you don't understand, ask again.
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There is a gray level in the color, not only the display, but also the control IC manual will also specifically indicate the gray level that the chip can output. The general saying is that the gray scale that the human eye can recognize is 256, that is, 0-255. Grayscale and brightness are two different concepts.
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