IntelliJ Idea like be zoomed in after I unlock my Windows PC

My problem:
I use IntelliJ in a laptop that connect to 2k display. When I connect to that display and start IntelliJ, everything is ok. Then my laptop is sleep and I login again. Every text are bigger. The icons are bigger too, but it looked like a low quality image be displays in high resolution display. Those problems are very ugly with me. So if anyone know how to fix it, please tell me.

Information:
OS: Windows 10 Pro 64bit
IntelliJ Idea: 2017.2.2
Display: Dell UltraSharp U2515H

Thank you very much!