LED display bright spots refer to irreparable single color dots that appear on the LED display. These dots still show red (R), green (G), blue (B) and other colors when the screen is black.
The reason for the appearance of these bright spots is usually related to vibration during processing or dust falling into the crystal structure, causing the transistor to short-circuit, thus making the pixel a bright spot.
Characteristics of LED display bright spots
1. Color: Bright spots are generally mostly light blue and red, and sometimes white or green, which is related to the composition of the bright spots.
2. Unrepairability: Once formed, these bright spots are usually irreparable because they represent that the light-emitting diodes of the corresponding pixels are damaged.
3. Quantity standard: According to national standards, for LED, LCD screens and liquid crystal displays, the number of bright spots of A-level (excellent) products should be less than 3. If a display has 3 or more bright spots, consumers can request a refund.
Detection method
After purchasing an LED display, you can use the following methods to detect:
1. Special test software: Use special test software to detect whether there are bright spots on the screen.
2. Monochrome background detection: Under the monochrome background of pure black, pure white or pure red, pure green, and pure blue, carefully check whether there are any luminous points of different colors under the monochrome pure color.
Notes
* When using software repair tools (such as the Undead pixel tool), you need to follow the operating steps and pay attention that the display screen cannot be turned off or enter sleep mode during the repair process.
* Regular inspection and maintenance of LED displays can extend their service life and reduce the occurrence of bright spots.
In summary, bright spots on LED displays are a common problem on displays, and their occurrence is related to various factors in the processing process. Through reasonable detection methods and timely maintenance, the impact of bright spots on the display effect can be minimized.