Lcd

Introduction

Liquid Crystal Display

LCD is a thin, flat display device made up of any number of color or monochrome pixels arrayed in front of a light source or reflector. It is often utilized in battery-powered electronic devices because it uses very small amounts of electric power.

Specifications

  • Resolution: The horizontal and vertical size expressed in pixels (e.g., 1024x768). Unlike CRT monitors, LCD monitors have a native-supported resolution for best display effect.
  • Dot pitch: The distance between the centers of two adjacent pixels. The smaller the dot pitch size, the less granularity is present, resulting in a sharper image. Dot pitch may be the same both vertically and horizontally, or different (less common).
  • Viewable size: The size of an LCD panel measured on the diagonal (active display area).
  • Response time: The minimum time necessary to change a pixel's color or brightness.
  • Matrix type: Active or Passive.
  • Viewing angle: More specifically known as viewing direction.
  • Color support: How many types of colors are supported
  • Brightness: The amount of light emitted from the display (luminance).
  • Contrast ratio: The ratio of the intensity of the brightest bright to the darkest dark.
  • Aspect ratio: The ratio of the width to the height (for example, 4:3, 16:9 or 16:10).
  • Input ports (e.g., DVI, VGA, LVDS, S-Video and HDMI).
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