Most monitor manufacturers have specific dead pixel policies that determine whether your display qualifies for a warranty replacement. These thresholds vary significantly by brand and product line. Premium and professional monitors typically have stricter standards, while consumer models follow the ISO 9241-307 Class II baseline. Always test your screen within the return window to catch defects early.
Manufacturer Dead Pixel Policies
The table below summarizes the dead pixel warranty policies for major monitor brands. Note that thresholds can differ between product lines within the same manufacturer.
| Manufacturer |
Dead Pixel Threshold |
Stuck Pixel Threshold |
Policy Details |
| Dell |
1+ bright, 6+ dark |
Same |
Strict Premium Panel Guarantee on UltraSharp: even 1 bright pixel = replacement |
| Apple |
Case-by-case |
Case-by-case |
Varies No published threshold. Genius Bar evaluates individually |
| Samsung |
3+ dead |
Varies |
Moderate Follows ISO 9241-307 Class II. Panel size affects threshold |
| LG |
5+ dead/stuck combined |
Combined |
Lenient Replacement within warranty. Location may affect eligibility |
| ASUS |
Varies by line |
Varies |
Strict on Pro ROG/ProArt: stricter 0-pixel policies. Consumer: follows ISO |
| HP |
ISO 9241-307 |
ISO standard |
Lenient Typically 5+ for Class II panels |
| Lenovo |
3+ bright or 5+ dark |
5+ |
Moderate ThinkVision Pro: 0 bright pixel tolerance |
| BenQ |
0 bright pixels |
5+ dark |
Strict Zero Bright Dot policy on qualifying models |
Policies current as of 2026. Always verify with the manufacturer's warranty documentation for your specific model.
Understanding ISO 9241-307
ISO 9241-307 is the international standard that classifies acceptable pixel defect levels in flat-panel displays. Most consumer monitors are manufactured to Class II specifications, which allows a small number of defects per million pixels.
The standard defines four classes, from zero tolerance to the most permissive:
| Class |
Bright Defects |
Dark Defects |
Total Allowed |
| Class 0 |
0 |
0 |
0 defects (zero tolerance) |
| Class I |
1 |
1 |
2 per million pixels |
| Class II |
2 |
2 |
5 per million pixels |
| Class III |
5 |
15 |
50 per million pixels |
A "bright" defect is a pixel permanently stuck on (appears white or colored), while a "dark" defect is a pixel that never lights up (appears black). Bright defects are generally considered more distracting, which is why manufacturers like Dell and BenQ offer stricter policies specifically for bright pixel defects.
Tips for Returning a Monitor
Test within the return window. Most retailers offer 14 to 30 days for returns. This is your best opportunity to catch dead pixels. Run a
full-screen pixel test as soon as you unbox a new monitor.
Document the defects. Take close-up photos of each dead or stuck pixel against a solid color background. Note the exact screen location and whether the pixel is bright, dark, or stuck on a specific color.
Retailer returns are often easier. Amazon, Best Buy, and Costco accept returns for dead pixels within their return window regardless of the manufacturer's threshold. You do not need to meet any minimum defect count.
Try fixing stuck pixels first. Stuck pixels (colored, not completely dead) can sometimes be fixed with rapid color cycling.
Try our stuck pixel fixer before starting a return. If it works, you save the hassle of shipping a monitor back.
Frequently Asked Questions
It depends on the manufacturer. Dell replaces UltraSharp monitors with even 1 bright dead pixel. BenQ has a zero bright dot policy on qualifying models. Samsung and HP typically follow the ISO 9241-307 Class II standard, which allows up to 2 bright defects, 2 dark defects, and 5 total defects per million pixels. LG requires 5 or more combined dead or stuck pixels. Always check your specific model's warranty terms, as professional and gaming lines often have stricter thresholds than consumer monitors.
Yes, in most cases. Retailers like Amazon, Best Buy, and Costco accept returns for dead pixels within their standard return window (typically 14 to 30 days) regardless of how many dead pixels you have. This is often easier than going through the manufacturer's warranty process. If the return window has passed, you will need to file a warranty claim with the manufacturer and meet their specific dead pixel threshold. Document the defects with close-up photos before contacting support.