tricolor television tube
Noun: A tricolor television tube is a specialized cathode-ray tube used in color television sets. Its key function is to produce a full-color image by combining light from three primary color phosphors—typically red, green, and blue—which are illuminated by separate electron beams.
This term refers specifically to the core imaging component in older color television sets and some computer monitors. It describes the technology that generates the picture. * The technician replaced the faulty tricolor television tube to restore the color picture. * Early color TVs relied on a tricolor television tube to display broadcasts.
The term is technical and historical. In modern contexts, display technologies like LCD, LED, and plasma have largely replaced cathode-ray tubes, including the tricolor television tube. * The museum's exhibit on 20th-century technology featured a dismantled tricolor television tube.
- Color TV tube: A more general synonym.
- Shadow mask tube: A common type of tricolor television tube that uses a perforated metal mask to align the electron beams with the correct color phosphor dots.
- Trinitron: A proprietary type of color television tube developed by Sony, which used an aperture grille instead of a shadow mask.
- CRT (Cathode-Ray Tube): The broader category of vacuum tube display devices, which includes monochrome and tricolor television tubes.
- Color picture tube
- Color CRT
- Monochrome television tube (a tube that displays only shades of a single color, typically black and white)
- Flat-panel display (e.g., LCD screen, OLED screen)
- a color television tube in which three primary colors are combined to give the full range of colors
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