How to distinguish the dead pixels and bright spots of LCD displays, and how to distinguish them?

Tool: Computer.

Display. Master Lu.

The detection procedure is as follows:

<>3. Open Master Bo Dig Lu and click the tool for screen detection to enter;

4. After entering, the page will become a solid color background, then carefully check the screen to see if there are bright spots or dead pixels;

5. After checking, continue to click on the screen, it will switch to another color, and look at the screen carefully in the same way;

6. When checking the screen, if you find that a certain point does not light up, or there is a problem with the display, it means that there is a dead pixel in the display.

1. LCD dead pixels are caused by defects in the screen itself;

2. The bright spot is caused by the short circuit of the thin-film transistor;

3. The dark spot caused by bond rot is caused by the circuit break caused by foreign bodies;

4. The short circuit is caused by the fact that the environment is not clean in the process, causing foreign matter to enter the screen, and the short circuit of the thin film circuit can be caused when the power is on.

Prepare a few solid colors**, pure white, pure black, pure red, pure blue, etc., full screen display, look carefully at the screen, there are bright spots, dark spots are all bad pixels. It is normal to have 1-2 dead pixels, if there are no dead pixels, congratulations, after a long period of use, the dead pixels will gradually increase.

Use the 360 Hardware Master, which has a dedicated option to detect dead pixels, and then visually check for dead pixels in different monochrome colors.

The next Master Lu has the function of detecting dead pixels. Bright spots and dark spots are called bad pixels.

Yes,,, abnormal are called bad pixels,

Bright spots and bad pixels, let's talk about LCDs.

The r, g, and b (red, green, and blue) dots that appear on a black screen are called bright spots.

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.

A dot that is pure black in the case of a white screen or a dot that is pure white in the case of a black screen. This dot is always in the same position and is always a pure black or pure white dot when switching to the red, green, and blue display mode. In this case, the three subpixels of the pixel, R, G, and B are damaged, and such pixels are called dead pixels.

Each point of the LCD screen corresponds to a light-emitting diode.

If the LED is not working properly, bright spots and dead pixels will appear.

The general inspection of bright spots and dead pixels is detected at the time of purchase to determine if there is a problem with the original equipment. In use, it is not easy to have bright spots and bad pixels, so don't worry about it. Although, theoretically, bright spots and bad pixels will be used more and more.