Surface Conduction Electron Emitter Display

Surface Conduction Electron Emitter Display

that emit electrons. When an electron hits a phosphor in the right place, it becomes excited. Once it returns to its base state, it releases its energy as visible light. SEDs use very fine cathodes and phosphors. Because of their size, they require a flat panel to hold them in place. This requires the screen to be thin and flat.

To make it even thinner, the screens are printed with layers of different kinds of materials. The electrons emitted from the cathodes travel through holes in the first layer of material. These holes act as guides that direct the electrons to the second layer of material.

Here, the electrons pass through another layer of holes in the material. Finally, the electrons travel to the phosphors that are laid on top of the last layer. They strike the phosphors and release energy in the form of light. SEDs use less energy than CRTs (cathode ray tubes), which are found in televisions, computers, and other electronic devices. The advantage of SEDs is that they don’t use any toxic materials. This Site has Mobile Repair Shop nearby.

which are closely spaced together. In addition, the surface of the display includes large arrays of very small dots or lines (an array of tiny cathode-ray tubes), which generate red, green, and blue light. A display device that uses a SED is known as a surface-conduction electron-emitter display or SED.

A number of companies have made a SED using organic compounds that conduct electrons. These include Nippon Display, Ltd., Sony Corporation, Philips Technologies, and Hitachi Kokusai Electric Co., Ltd. The basic process of fabricating a SED is similar to the fabrication of a cathode-ray tube. In a cathode-ray tube, an electron gun fires a beam of electrons at a phosphor screen.

The phosphor screen emits visible light after being struck by the electrons. In a SED, an electron gun generates an electron beam, which passes through a grid.

The electron gun then deposits a small number of electrons onto the surface of a semiconductor material. An electrostatic field between the semiconductor material and the grid deflects the electrons from the electron gun to the phosphor screen. See more now

called pixels, which produce an image. Each pixel has a color phosphor, which emits a different color when struck by electrons. An individual color is produced by using the color phosphor in combination with a color filter. The result is a display that looks like a television screen. SEDs are sometimes called cold cathode displays because their cathodes emit electrons at low temperatures. A cold cathode is a device that is used to emit electrons at room temperature.

A cold cathode does not require as much energy as the cathode used in a conventional cathode-ray tube. This allows a cold cathode to produce electrons at lower voltages, making the displays easier to manufacture. SEDs can produce color images with very high resolution. The individual pixels are small enough to provide a crisp, high-quality picture. As the pixels are very small, the picture becomes exceptionally bright, and the resulting image is very sharp.

Another advantage is that the image is stable over a wide range of temperatures. A display made with a cold cathode will not burn out or dim over a long period of time.

These types of displays are used in many applications, such as large-screen television displays and computer monitors. A number of companies have recently entered the market for SEDs.

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