亚洲 欧美 图片 自拍 视频

<em id="7lnzx"></em>

    <pre id="7lnzx"></pre>

        <strike id="7lnzx"><address id="7lnzx"></address></strike>

        <big id="7lnzx"></big>

          Plasma TV display principle

          Plasma TV is a display technology that uses gas discharge and works like a fluorescent lamp. It uses a plasma tube as a light-emitting element. Each plasma tube on the screen corresponds to one pixel. The screen uses glass as a substrate. The substrates are separated by a certain distance, and the surrounding is sealed by airtightness to form a discharge space. The discharge space is filled with a mixed inert gas such as helium or neon as a working medium. A metal oxide conductive film is coated on the inner side surfaces of the two glass substrates as an excitation electrode. When a voltage is applied to the electrodes, a plasma discharge phenomenon occurs in the mixed gas in the discharge space. The gas plasma discharge generates ultraviolet light, the ultraviolet light excites the fluorescent screen, and the fluorescent screen emits visible light to reveal an image. When a fluorescent screen coated with phosphors of three primary colors (also called three primary colors) is used, the ultraviolet light excites the fluorescent screen, and the light emitted by the fluorescent screen is red, green and blue. When each primary color unit realizes 256-level gray scale and then performs color mixing, color display is realized. Plasma display technology can be divided into two types: DC-type PDP with electrodes in direct contact with gas and AC-type PDP with electrodes covering the dielectric layer. There are three main types of color PDPs currently being researched and developed: single-substrate (also known as surface discharge) AC PDP, dual (also known as counter-discharge) AC PDP and pulse storage DC PDP.

          This article refers to the address: http://

          亚洲 欧美 图片 自拍 视频
          <em id="7lnzx"></em>

            <pre id="7lnzx"></pre>

                <strike id="7lnzx"><address id="7lnzx"></address></strike>

                <big id="7lnzx"></big>