Plasma display screen protection film material performance test method and system
A technology of plasma display screen and material performance, which is applied in the direction of material analysis using measurement of secondary emissions, can solve the problems of high signal noise, high requirements for testing equipment and analytical instruments, and inability to perform in-situ testing, and achieves device structure. Simple, reduced requirements, simple and easy-to-follow effects
Inactive Publication Date: 2011-07-06
NANJING HUAXIAN HIGH TECH CO LTD
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[0007] The purpose of the present invention is to solve a series of problems such as the current electron emission performance test method for the protective film material of the plasma display screen has too high requirements on test equipment and analysis instruments, and the signal noise is too large, and in-situ testing cannot be carried out. A method and system for testing the performance of plasma display protective film materials that do not require high excitation light source equipment and can be tested in situ by using an ordinary spectrum analyzer
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0025] like figure 1 , 2 , 3 shown.
[0026] A method for testing the material performance of a protective film for a plasma display screen. Firstly, the protective film to be tested is placed in a crucible in a vacuum chamber of an electron beam evaporation coating machine; The film material makes it emit ultraviolet rays of a specific wavelength. Third, use an optical fiber to collect the ultraviolet rays through an ultraviolet collection window and transmit them to a spectrum analyzer. Finally, the spectrum analyzer analyzes and outputs the test results (computers can be used as output equipment, or use a printer to print out directly). During the specific implementation, the electron beam emission power of the electron gun can be adjusted. It can be used as an excitation light source for testing, and can also be used as a heating source for evapo...
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Abstract
Aimed at solving the problems that the prior plasma panel protective membrane material electron emission performance measuring method has too high requirements on equipment, a too high price and a medium signal-to-noise ratio, the invention discloses a plasma panel protective membrane material electron emission performance measuring method and a system, wherein, the method comprises the followingsteps of using an electron gun (2) to emit a hard electron beam (3) to bombard the protective membrane material (5) arranged in a cold crucible (4) in the vacuum chamber (1) of an electron beam evaporation film coating machine to enable the protective membrane material (5) to emit ultraviolet light (6) with specific wave length; collecting the ultraviolet light (5) by the ultraviolet transmissionoptical fiber (7) through an ultraviolet light acquisition window (8) and transmitting the ultraviolet light (5) to a spectrum analyzer (12); working out the electron beam excitation spectrum of the current material by a personal computer (13) connected with the spectrum analyzer (12) for analyzing the performance of the material. The plasma panel protective membrane material electron emission performance measuring method and the system facilitate the measuring cost reduction with reliable method and simple structure.
Description
technical field [0001] The present invention relates to a material performance testing method and device, in particular to a plasma display screen material performance testing method and device, in particular to a plasma display screen protective film material performance testing method and system. Background technique [0002] Currently, in a plasma display panel (PDP), an inert discharge gas sealed in front and rear substrates respectively having scan electrodes and address electrodes is ionized into plasma, during which the discharge gas is excited to emit ultraviolet rays, and Ultraviolet light excites phosphors placed at specific locations to emit visible light. [0003] Usually, a dielectric film is formed on the electrode surface to maintain gas discharge and insulation. [0004] When an AC voltage is applied between the electrodes, the discharge gas is ionized to form plasma, and positive ions are directed toward the electrode side. In order to prevent the dielectri...
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IPC IPC(8): G01N23/22
Inventor 孙青云朱立锋王保平张雄林青园
Owner NANJING HUAXIAN HIGH TECH CO LTD