does anyone know how a program can find dead pixels on a phone screen?
I found a lot of dead pixel finding tools and all of their implementations looks similar. It's showing a single-color screen, such as red, green, blue, white and black. Then, we need to check if there's any dots with different color (which is dead pixels) manually.
Is it possible to find the dead pixels automatically?
No, it isn't.  Rendering the pixels is a "write-only" process, much like sending a message to the console.  There is no feedback from the physical pixels to indicate whether they turned on as expected.  Think of it like a TV screen: the broadcast studio has no way to tell whether you got the program.  They simply send out the signal; you pick it up or ignore it, depending on how you set your hardware state.
Does anyone know how to find dead pixels on a phone screen automatically?