cathode-ray tube - Definition & Meaning

a tube-shaped part in which electrons create bright images, and is used in old television or computer screensa tube-shaped part in which electrons create bright images, and is used in old television or computer screens

A cathode-ray tube (CRT) is a technology used in older television and computer monitors to display images. It works by sending an electron beam through a vacuum tube onto a phosphorescent screen. The screen is coated with tiny phosphor dots that glow when struck by the electron beam, creating images and text. CRTs were widely used for many decades, but they are now largely replaced by flat-panel technologies like LCD, LED, and OLED. While CRTs offered good color and contrast, they were bulky and heavy compared to modern screens.A cathode-ray tube (CRT) is a technology used in older television and computer monitors to display images. It works by sending an electron beam through a vacuum tube onto a phosphorescent screen. The screen is coated with tiny phosphor dots that glow when struck by the electron beam, creating images and text. CRTs were widely used for many decades, but they are now largely replaced by flat-panel technologies like LCD, LED, and OLED. While CRTs offered good color and contrast, they were bulky and heavy compared to modern screens.

例句

The old television in the attic still uses a cathode-ray tube, so it's bulky and heavy.
阁楼里的旧电视机仍然使用阴极射线管，所以它又大又重。
The monitor at the computer lab was a cathode-ray tube, making it much thicker than today's models.
计算机实验室的显示器是一个阴极射线管，这使得它比今天的型号厚得多。
The cathode-ray tube technology in older televisions doesn't compare to the sharpness of modern LCD screens.
旧电视中的阴极射线管技术无法与现代液晶屏幕的清晰度相提并论。