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Low-resistance high-transmittance shielding film for plasma displays

A plasma display and shielding film technology, applied in optics, instruments, optical components, etc., can solve the problems of bonding conductive bus bar loss, system error, etc., to achieve protection from erosion, tight structure, enhanced light transmission and conductivity. Effect

Inactive Publication Date: 2009-11-18
BEIJING AVIATION MATERIAL INST NO 1 GRP CORP CHINA AVIATION IND +1
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Problems solved by technology

[0007] When the surface resistance is ≤2Ω / □, it can meet the requirements of the national standard, but in the actual production process, there are system errors, losses in the process of bonding conductive bus bars to the ground, and differences in TV radiation. The shielding effect must be reserved. Sufficient margin can ensure that each TV can meet the standard. After experimental testing, we selected a surface resistance of 1Ω / □

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0026] like figure 1 As shown, the low-resistance and high-transparency shielding film of plasma display of the present invention comprises a bottom layer, an intermediate layer and a surface layer; wherein the bottom layer is a flexible organic base material layer; 2 layer, Ag layer, TiO 2 layer, repeated n times, n is a natural number, and n≥3; the surface layer is an ITO layer;

[0027] In addition, the organic base material layer, TiO 2 layer, Ag layer and ITO layer are honeycomb composite structure on the surface, TiO 2 layer and ITO layer can be directly sputtered with a ceramic target, and the thickness is between 10nm and 50nm. Ag layer thickness between 12nm and 20nm, TiO 2 layer and the thickness of the ITO layer is between 10nm and 50nm. Because TiO 2 The surface of Ag layer / Ag layer / ITO layer (D / M / D for short) structure needs to form a honeycomb str...

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Abstract

The invention relates to a low-resistance high-transmittance shielding film for plasma displays. The low-resistance high-transmittance shielding film comprises a bottom layer, a middle layer and a surface layer, wherein the bottom layer is a flexible organic substrate material layer (1); the middle layer is TiO2 layer (2), Ag layer (3) and TiO2 layer (2) which are repeatedly superimposed one by one for n times, wherein n is more than or equal to 3; the surface layer is an ITO layer (6); the layers are different in thickness; and honeycomb-like composite structure is adopted simultaneously between the layers. The film system structure can more conveniently realize film system matching, reduce resistivity and improve shielding effectiveness and light transmittance.

Description

1. Technical field [0001] The invention belongs to the technical field of display device manufacturing in physics, and in particular relates to a low-resistance and high-transparency shielding film for a plasma display. 2. Background technology [0002] Plasma display color TVs have entered our homes more and more because of their large screen, high definition, high brightness, high contrast, perfect animation reproducibility, ultra-thin and other advantages. [0003] The principle of the plasma display (Plasma Display Panel, referred to as: PDP) is: the gas filled between the upper and lower glass substrates is used to emit ultraviolet rays by applying voltage, and the fluorescent powder on the surface of the glass tube emitted by the ultraviolet rays emits visible light. And through the digital circuit to control the light-emitting state of each point at high speed to realize the dynamic image. During its working process, high-frequency electromagnetic waves are inevitabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/22H01J17/49H01J17/34
Inventor 颜悦张官理张小华潘耀南
Owner BEIJING AVIATION MATERIAL INST NO 1 GRP CORP CHINA AVIATION IND
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