I dont really recommend it. So I got sick this oily screen last night so I decided to pour isopropyl alcohol to my L1020 and nothing happened and its still alive(I'm typing on it actually). To be clear, my L1020 have terrible broken screen, I only pour isopropyl alcohol on the screen but I'm pretty sure it went inside because it basically have broken screen. I dont recommend you trying it, I used 90 percent isopropyl as I was using on cleaning my PC(processor). If you are going to try it I recommend putting tissue around the screen gap( gap between the glass screen and the body) and other possible liquid entrance.