How do you understand these two sentences about bright spots and dark spots?

Each pixel on the LCD screen is composed of red, green, and blue three primary colors, and they are combined to make the pixels produce various colors, that is to say, the normal images displayed on your monitor are composed of three primary colors There are three transistors behind each LCD pixel, corresponding to red, green, and blue filters, and any one of the transistors has a fault, that is, a short circuit, which will make this one pixel always display his color So.

The bright spot is the point that always shows the three colors of red, green and blue, no matter how the surrounding color changes, this pixel is always the color of one of the three colors that is fixed, the reason why it is on a pure black background, because it is easiest to see on a pure black background, when you buy a monitor, adjust the screen to pure black, is the most obvious way to judge whether there is a bright spot, but it does not rule out dark spots and bad pixels.

The dark dot is the black dot that is only displayed on the screen in full white, and it usually changes with the change of the image, and it can only be clearly seen when the screen is turned to pure white.

Problem 1: When you turn the screen to all black, if there is a dot on the screen with other colors, that's the bright spot, and there is usually no other color.

Question 2: Under normal circumstances, a pure white background should not appear in a non-pure red, green, and blue color, so as long as this color appears, then the display is abnormal, or how to call it a dark spot, a white background, there should be those colors, and it is broken, hehe, can you understand???

The appearance of bright spots is divided into two cases:

In the case of a black screen, the point of simply rendering the color of R or G or B is rendered. Red dot under a black screen.

When switching to red, green, and blue display mode, there are only white dots in one of the display modes in R, G, or B, and there are other dots in the other two modes, which is the case where there are two bright spots in the same pixel.

What is a dark point: In the case of a white screen, the color point that appears is not simple r, g, and b is called dark point.

The appearance of scotomas is divided into two cases:

When switching to red, green, and blue display mode, if there is only a black dot in the same display mode of R, G, or B, there is only one dark dot in the pixel.

When switching to red, green, and blue display mode, there are black dots in both display modes in R or G or B at the same position, indicating that there are two dark dots in the pixel.

1. The meaning of bright spot is: a metaphor for a person or thing that is brilliant and eye-catching; Outstanding advantages:

2. Metaphor for people or things that are brilliant and eye-catching: In the national volleyball league, several coaches who have come out of the mountain again have become highlights. Old books autographed by the authors are the highlight of the auction.

3. The outstanding advantages of the metaphor: there are many bright spots on his body.

The bright spot, also known as the LCD bright spot, is a kind of physical damage to the liquid crystal screen, which is mainly caused by the internal reflector of the bright spot being pressed by external force or slightly deformed by heating.

The blind spot or a weak vision area in the field of vision is called a dark spot, which is only a black spot displayed on the screen in full white, and usually changes with the change of the fighting image.

Each pixel of liquid crystal is composed of red, green, blue 3 pixel units, you can abstractly regard the liquid crystal as a video wall that displays the picture, each TV can only display a complete pixel, each pixel unit corresponds to its own drive tube, it can be imagined that it is very likely to be damaged in the large industrial production of the air crack bridge, then the corresponding pixel will be missing a color unit, so that there are bright spots or dark spots when displaying, which are all liquid crystal bad pixels.

The so-called bright spots, also commonly known as color dots, are mostly green and white, and they do not change with the screen image, and the fixed display is a color, and the dead pixels of the liquid crystal are mostly bright spots.