Arcade game machines have evolved significantly over the decades, and so have their display technologies. The most common types of displays used in arcade games include:

1. CRT Monitors: Traditional cathode-ray tube (CRT) monitors were the standard in classic arcade games. Known for their deep blacks and fast response times, CRTs were ideal for early pixel-based games like Pac-Man and Space Invaders.

2. LCD Screens: As technology advanced, liquid crystal display (LCD) screens became popular due to their slim profile, energy efficiency, and sharp image quality. Modern arcade cabinets often use LCDs for versatility and cost-effectiveness.

3. LED Panels: Light-emitting diode (LED) displays offer vibrant colors and high brightness, making them suitable for arcade games in brightly lit environments. They are commonly used in modern redemption and ticket-based arcade machines.

4. OLED Technology: Organic light-emitting diode (OLED) screens provide superior contrast ratios and faster refresh rates, enhancing the visual experience in high-end arcade games. Though less common due to higher costs, OLEDs are gaining traction in premium arcade setups.

Each display type has its strengths, catering to different eras and styles of arcade gaming. Whether it's the nostalgic glow of a CRT or the crisp visuals of an OLED, display technology continues to shape the arcade experience.