The appearance of dead spots or bright spots on the display is one of the common quality problems of the display, which will directly affect the user's visual experience. The following is a detailed analysis of the dead spots or bright spots on the display:
I. Definition of dead spots and bright spots
- Dead spots: refers to the pixels on the display that cannot emit light. Compared with the pixels that work normally around them, they do not emit light at all, forming obvious black spots.
- Bright spots: In contrast to dead spots, bright spots refer to pixels that continue to emit light on the display, which will emit light even when there is no image signal, forming obvious white spots.
II. Causes
1. Manufacturing defects: During the production process of the display, due to problems with the manufacturing process or materials, some pixels may not work properly, forming dead spots or bright spots.
2. Damage during use: During the use of the display, if it is subjected to external impact or improper operation, it may also cause pixel damage, resulting in dead spots or bright spots.
3. Long-term use: For some types of display screens (such as LED displays), long-term use may cause the lamp beads to age, which in turn causes dead spots or bright spots.
III. Impact and Solution
Impact
- Reduced visual experience: The presence of dead pixels or bright spots will directly affect the display effect of the display and reduce the user's visual experience.
- Product quality issues: For newly purchased displays, the appearance of dead pixels or bright spots is usually regarded as a product quality issue, and users have the right to request a return or repair.
Solution
1. Check and confirm: First, the user needs to confirm that the dead pixels or bright spots on the display are indeed dead pixels or bright spots, and not illusions caused by other factors (such as dust, stains, etc.).
2. Contact the manufacturer: If it is confirmed that it is a dead pixel or bright spot problem, the user should contact the manufacturer or seller of the display as soon as possible to understand the relevant after-sales service policy.
3. Return or repair: According to the after-sales service policy, users can choose to return or repair. For newly purchased displays, most manufacturers will provide a certain warranty period, and dead pixels or bright spots that occur during this period can usually be repaired or replaced free of charge.
4. Use pixel repair software: Although the effect of pixel repair software is limited, users can try to use this type of software to repair dead pixels or bright spots. It should be noted that this method is not always effective and may cause further damage to the display.
5. Replace the display: If the number of dead spots or bright spots is large and cannot be solved by the above methods, the user may need to consider replacing the display.
IV. Preventive measures
1. Choose a well-known brand: When purchasing a display, you should choose a well-known brand and a reputable manufacturer to reduce the risk of dead spots or bright spots.
2. Pay attention to the use environment: Avoid exposing the display to harsh environments such as high temperature, high humidity or strong magnetic fields for a long time to reduce damage to the display.
3. Correct operation: When using the display, you should follow the correct operation method to avoid improper operations such as excessive squeezing, collision or falling.
In summary, the appearance of dead spots or bright spots on the display is one of the common quality problems of the display, and users should take corresponding solutions according to the specific situation. At the same time, by choosing well-known brands, paying attention to the use environment and correct operation, the risk of dead spots or bright spots can be reduced.