The first thing to say is that the TV will not explode like a gunpowder. The power in the picture is not caused by a so-called explosion, but by a fire. The long-time operation of the display power supply, and the large current portion of the deflection yoke caused by the poor contact caused the case to catch fire and explode. Why are CRTs, LCD TVs, and plasma TVs blasting? Let’s take a look at the related content of the home of the decoration home!
1. CRT, which is a cathode ray tube (Cathode Ray Tube), which is mainly composed of five parts: Electron Gun, Deflection coils, Shadow mask, high pressure graphite electrode and phosphor coating. (Phosphor) and glass casing. The CRT tube uses an electron gun to emit high-speed electrons. The vertical and horizontal deflection coils control the deflection angle of the high-speed electrons. Finally, the high-speed electrons strike the phosphor on the screen to illuminate it. The voltage is used to adjust the power of the electron beam. Light spots with different light and dark are formed to form various patterns and characters. CRT shows that the inside of the tube is close to vacuum, so under the action of atmospheric pressure, even if there is a crack, it will collapse inward without splashing around.
2, liquid crystal display or LCD (Liquid Crystal Display), is based on liquid crystal electro-optic effect (liquid crystal is such an organic compound, under normal temperature conditions, showing the fluidity of both liquid, but also the optical anisotropy of the crystal, Therefore, it is called “liquid crystal.†Under the influence of external conditions such as electric field, magnetic field, temperature, stress, etc., the molecules are easily rearranged, so that various optical properties of the liquid crystal change accordingly. Filtering the light source through liquid crystal and color filter , produces an image on a flat panel. The so-called explosion is also caused by a circuit-induced fire that causes the LCD screen to burst. It does not have the basic elements of an explosion.
3. Plasma display or PDP (Plasma Display Panel) works by filling a mixture of two thin glass plates, applying a voltage to generate an ionic gas, and then discharging the plasma gas to the phosphor in the substrate. A reaction occurs to produce a color image. It uses a plasma tube as a light-emitting element, and a large number of plasma tubes are arranged to form a screen. Each chamber corresponding to each plasma is filled with helium gas, and after adding high voltage between the plasma tube electrodes, it is sealed in two layers of glass. The gas in the plasma tube chamber produces ultraviolet light and excites the red, green, and blue primary phosphors on the flat panel display to emit visible light.
The above is a detailed answer to the Xiaobian, I don't know if you are satisfied with the introduction of the decoration home network Xiaobian~ If you want to know more about the exciting content, please continue to pay attention to our life encyclopedia!
More related wonderful reading:
Panasonic plasma TV common disease plasma and LCD TV difference
The advantages of plasma TVs brand plasma TVs
Glass Bottle,Glass Double Wall Bottle,Glass Tea Bottle,Glass Bottle With Silicone Cover
Ningbo Auland International Co.,Ltd. , https://www.aulandbottles.com