Maintenance device and device of display screen
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HISENSE VISUAL TECH CO LTD
- Publication Date
- 2010-02-17
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
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Abstract
Description
technical field
[0001] The invention relates to information processing technology, in particular to a method and device for maintaining a display screen. Background technique
[0002] The display screen of the plasma display uses a plasma tube as a luminous body. Glass electrodes are arranged at both ends of the plasma tube. One of the glass electrodes is coated with three primary color phosphors. The inside of the plasma tube is filled with inert gas. When the voltage is high, the inert gas inside the plasma tube generates plasma, and the plasma excites the glass electrodes coated with three primary color phosphors to emit visible light, thereby realizing imaging.
[0003] At present, when a plasma display displays static information (such as still pictures or text) for a long time, the luminous efficiency of the high-brightness area will gradually decline, resulting in residual images on the display screen, and even permanent burns on the screen. Contents of the inventio...