Brightness, Contrast, Horizontal Lines, Vertical Lines or Geometrical problems: The Screen is either too bright, too dim or has a black space on the top of the screen or on the bottom of the screen or has horizontal lines or vertical lines. The icons, font or screen is distorted, flickering, fuzzy, blurry or has color problems.$170 at Amazon We may earn a commission for purchases using. The Lepow Portable HD Monitor is a great portable monitor for its low price, but people who want something elite will be disappointed.