A plasma display panel is a display device that uses a gas discharge, and the screen uses a plasma tube as a light-emitting element. A large number of plasma tubes are arranged together to form the entire full screen. Each plasma tube acts as a pixel, and each pixel consists of three different color illuminators - red, green, and blue. The image of various gray levels and colors is produced by the combination of light and dark and color combinations of these pixels, which is very similar to the principle of CRT. The central component of a plasma tube is the plasma, which is a gas composed of free-flowing ions (charged atoms) and electrons (negatively charged particles). Under normal circumstances, the gas is mainly composed of uncharged particles, that is, a single gas molecule includes the same number of protons (positively charged particles in the nucleus) and electrons, negatively charged electrons and positively charged Protons maintain a perfect balance, so the atom's net charge is zero.
If some electrons are put into the gas by means of increasing the voltage, then it will change immediately. The free electrons collide with the atoms and make the number of electrons inside the atom unbalanced, which will make it positively charged. And produced ions. If a current flows through a stable plasma, the negatively charged particles will rush toward the areas with positively charged particles, while the positively charged particles will also kill those areas with negatively charged particles.
In such a movement, the particles of both sides are constantly striking. These impacts excite the gas atoms in the plasma, causing them to emit light. This works very similar to ordinary fluorescent lamps.
The plasma corresponding to each plasma in the plasma display is filled with helium and neon atoms, and when they are hit, they emit light. Generally speaking, the light emitted by these atoms is only ultraviolet light, and the ultraviolet light is indistinguishable to the human eye. But it is these ultraviolet light that ignites the phosphor and produces the light we can see.
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