Dimming LED strip

Hi guys

I'm trying make a project and I have an LCD and 2 LED strips. I plan to have a total of 8 LED's light up, but when that happens, the LCD dims to the point where I can no longer see the screen. What can I use to dim the LED's so that there is enough power going to the LCD?

any help is much appreciated

Connect your LEDs to a transistor or MOSFET & drive it with the Arduino GPIO, and use an external power supply to power the LEDs.

PS - I'm not a guy