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Permanent Line On LCD Monitor

By on September 22, 2008

I got quite a number of emails asked whether one permanent vertical or horizontal line can be repair or not. The line is usually a white line. My answer to them is still “No” if you have confirm that there is no dry contacts between the LCD panel screen and the LCD controller board. If it is a dry contact, you can know it by pressing on the board area that produced the line (vertical or horizontal). The line problem in LCD Monitors are most probably cause by a defective LCD driver IC and there is no way we could replace the IC.

lcd vertical line

If i come across permanent line on LCD Monitor, i will send back the Monitor to customers (normally customer don’t want to repair because a used or a new lcd panel are very costly) or offer them a good price to buy over so that i could salvage the Main board and power/inverter board and in some models i could have their power pack too for future use!



  1. Hossam Elbhery

    July 9, 2019 at 1:01 am

    I have green line on my lcd and when pressing on the screen top back it it a dry contact? And,can I fix it? Thanks!

    • Jestine Yong

      July 9, 2019 at 8:28 am

      Hi Hossam,

      It depends. Some can be temporarily fix by putting on the pressure but to some you may need a Tab bonding machine to do it.



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