4.黑斑(也称“MURA”)“黑斑”也有两种情况:一种在开机一段时间(通常为10min)后,会消失,不影响收看节目(一般是Cell组件不良产生的);另一种是固定不变的,这种“黑斑”有时遍布整个屏,有时仅在屏幕的某个区域。遍布整个屏通常是由于液晶显示屏长时间使用,其光扩散板发黄所致。更换发黄的光扩散板即可排除故障。而局部区 4. Dark spots (also called “MURA”) “dark spots ” There are two cases: one in the boot a period of time (usually 10min) will disappear, does not affect the program to watch (usually the Cell component is bad Generated); the other is fixed, this “dark spots ” is sometimes the entire screen, and sometimes only in a certain area of ​​the screen. Throughout the entire screen is usually due to the long-term use of the LCD screen, yellow light diffusion plate caused. Replace the yellow light diffusion plate to troubleshoot. The local area