Single-colour fluorescent powder spraying method for plasma display device

A technology of plasma and phosphor, which is applied in the field of phosphor layer production of ion plasma displays, can solve problems such as inconsistent thickness of phosphor layer, influence on device discharge uniformity, and degradation of phosphor luminescence performance, so as to maintain luminescence performance and excellent luminescence Good performance and chroma performance

Inactive Publication Date: 2003-08-27
SOUTHEAST UNIV
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Problems solved by technology

[0003] 1. Poor uniformity
Using the method of screen printing, the phosphor slurry first enters the top of the inner wall of the barrier, and by adjusting the viscosity of the phosphor slurry, it flows to the bottom of the inner wall of the barrier with the weight of the phosphor slurry itself and is leveled. The amount of material entering the barrier depends on the state of the screen printing machine, and it cannot be completely uniform; at the same time

Method used

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  • Single-colour fluorescent powder spraying method for plasma display device
  • Single-colour fluorescent powder spraying method for plasma display device
  • Single-colour fluorescent powder spraying method for plasma display device

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Embodiment Construction

[0020] On the basis of the technical solution of the above invention, the specific structure is further considered, and the following various embodiments are proposed, and the relevant equipment structure is further described through specific embodiments.

[0021] In the first embodiment of the present invention, the pressure spray gun is used to move two-dimensionally in the x and y planes, and the phosphor slurry is sprayed on the inner wall of the conductive grid plate unit hole in the conductive grid plate structure plasma display to form monochromatic fluorescent light. Floor. The steps are as follows:

[0022] The first step, ingredients, mix the phosphor to be prepared with acetone in a certain proportion, the concentration range is 100 g / L, and add alkyd resin to adjust the viscosity;

[0023] The second step is stirring, and the phosphor powder slurry is fully stirred;

[0024] The third step is to charge the phosphor powder slurry into the hopper 2 of the spray gun...

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Abstract

The method is suitable for preparing the luminescent powder applicable in plasma displays with the structure of electric grid mesh plate and the barrier type plasma displays. Based on the principle of spray coating by pressure spray guns or by static spray guns, the prepared luminescent powder pulp is spraying coated on the meshes of the inner wall of the electric grid mesh plate or the surface of the inner wall of the barrier forming the monochromatic luminescent powder layer. Comparing with the prior art, the invention possesses the features of simple equipment, high efficiency and good chromatic purity etc.

Description

(1) Technical field [0001] The invention belongs to the technical field of phosphor layer production for plasma displays, and in particular relates to a method for fabricating phosphor layers in a plasma display with a conductive grid structure and a barrier-type plasma display. (2) Background of the invention [0002] In the existing plasma display, the composition of the front plate starts from the glass substrate, which is respectively a transparent conductive electrode layer, the bus electrode layer and the dielectric layer, and the composition of the rear plate starts from the glass substrate, which is respectively a signal electrode layer, a dielectric layer and a barrier layer. A series of high and narrow grooves are formed on the surface of the dielectric layer by means of printing or sandblasting with low-melting point glass powder, and finally sintered to form barriers. This type of plasma display is a barrier-type plasma display. The height of the barrier is betw...

Claims

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Application Information

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IPC IPC(8): B05D1/02H01J9/22
Inventor 李青张雄童林夙
Owner SOUTHEAST UNIV
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