Recent advancements in multimedia applications employ far more complex graphic images compared to those from several years ago. For example, gaming, video conferencing and Internet surfing all rely on vivid colors and crisp text to be impactful. Consequently, increased clarity and contrast are essential for maximum screen performance. Convergence is the process of controlling the CRT beam deflection to keep the red, green and blue beams properly overlapped when scanning the raster (area illuminated by the scan lines on a CRT). As the electron gun scans across the screen, the shape of electron beams slightly varies as the beam reaches the outer edges of the screen. Misconvergence, the technical term used when this process is not completely accurate, appears as color fringing on the edge of an image displayed on the screen.
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