轉載自tomshardware:
Pixel Errors
These occur due to defective transistors and are seen on the screen as disturbing color points. Due to the inoperable transistor, light is either never passed through a pixel, or it is constantly lit. The disturbing effect is enhanced if the errors occur in groups on areas of the display. Unfortunately, a standard does not exist that defines the maximum number of permissible pixel errors or groups of pixel errors on the display. Each manufacturer has his own definition. Between three and five pixel errors are normal. ----Buyers to whom this is important should check this when purchasing a machine as the errors occur during manufacturing and can not be repaired. One consolation: the number of such errors will not increase later, provided you don't press the display surface with your finger or other objects.------
最好還是要求測亮壞點.