The full name of the PDP is the Plasma Display Panel. The Chinese name is the plasma display. It is a device that injects a mixture of gases between two ultra-thin glass plates and applies a voltage to the phosphor using a fluorescent light. Compared with CRT tube display, it has the characteristics of high resolution, large screen, ultra-thin, rich colors and vivid colors. Compared with LCD, it has features such as high brightness, high contrast, large viewing angle, bright colors, and rich interfaces.

Working principle: It is a display technology using gas discharge. Its working principle is very similar to that of fluorescent lamps. It uses a plasma tube as a light-emitting element. Each plasma tube on the screen corresponds to a pixel. The screen uses glass as a substrate, the substrates are spaced at a certain distance, and a discharge space is formed around the substrate by hermetic sealing. The discharge space is filled with inert gas such as helium and neon as working medium. On the inner side of the two glass substrates, a metal oxide conductive film is coated as an excitation electrode. When a voltage is applied to the electrode, a plasma discharge occurs in the gas mixture in the discharge space. The gas plasma discharge generates ultraviolet light, which excites the fluorescent screen, and the fluorescent screen emits visible light, revealing an image. When fluorescent screens coated with phosphors of three primary colors (also called tri-primary colors) are used, the ultraviolet ray excites the screen, and the light emitted from the screen exhibits red, green, and blue primary colors. When each primary color unit realizes 256-level grayscale and then performs color mixing, color display is realized. The plasma display technology can be divided into two major categories of direct-current type PDPs in which electrodes directly contact with gas and alternating-current type PDPs in which dielectric layers are covered on electrodes according to its operating mode. There are mainly three types of color PDPs currently researched and developed: single-substrate type (also called surface discharge type) AC PDPs, dual type (also called opposite-discharge type) AC PDPs, and pulsed-storage DC PDPs.

Plasma features: Plasma is a self-luminous display technology that does not require a background light source, so there is no problem with the viewing angle and brightness uniformity of LCD displays, and high brightness and contrast are achieved. The design of the three primary colors sharing the same plasma tube also avoids the problems of focusing and focusing and can achieve very clear images. Compared to CRT and LCD display technologies, the larger the plasma screen, the higher the color depth and fidelity of the image. In addition to the advantages of brightness, contrast, and viewing angle, plasma technology also avoids the problem of response time in LCD technology, which is a crucial factor in dynamic video display. Therefore, from the current level of technology, plasma display technology has more obvious advantages in the field of dynamic video display, and is more suitable for home theater and large-screen display terminals. The plasma display has no scanning line scanning, so the image is clear and stable without flicker and does not cause eyestrain. The plasma also has no X-ray radiation. Due to these outstanding features, plasma is a true green display product and is an ideal alternative to traditional CRT color TVs.

Lan Cable

Cambo Technology Co., Ltd. ,

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