The conversation between human and AI assistant.
What is this black spot for?
Ah, good idea. I'll try that. But why do dead pixels or scratches look like black spots specifically?
Dead pixels and scratches can appear as black spots because they affect the brightness and color of the area where they occur. Dead pixels are areas where the screen's transistor doesn't work, so it doesn't emit light. Scratches, on the other hand, can throw off the way light is emitted and reflected by the screen.