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Method for improving salt spray resistance of liquid crystal display module

A liquid crystal display module and salt spray-resistant technology, which is applied in nonlinear optics, instruments, optics, etc., can solve the problems of poor resistance to salt spray, damp heat, etc., achieve a high degree of generalization, ensure normal work, and reduce the effect of breathing

Inactive Publication Date: 2017-12-05
NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to invent a method for improving the salt spray resistance of the liquid crystal display module in view of the problem that the existing liquid crystal display module has poor resistance to salt spray and heat and humidity

Method used

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  • Method for improving salt spray resistance of liquid crystal display module
  • Method for improving salt spray resistance of liquid crystal display module

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Experimental program
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Effect test

Embodiment 1

[0022] like figure 1 , 2 shown.

[0023] A method for improving the salt spray resistance of a liquid crystal display module, the key of which is to arrange a certain number of small holes 70 covered by soft elastic materials 20 at equal intervals around the back of a metal heat sink 10 of a certain size to communicate with the internal structure of the module. like figure 1 As shown, through the heat (or cold) deformation of the soft elastic material 20, the breathing effect inside the module is reduced, and a hydrophobic material is applied to the structural gaps of the module. The connection between the soft elastic material 20 and the metal heat dissipation plate 10 is a sealed connection: including pasting double-sided adhesive tape 60 between the soft elastic material 20 and the metal heat dissipation plate 10 to realize pre-fixation, and the soft elastic material 20 and the metal heat dissipation plate 10 Continuous dotting of sealant 50 on the gap of the contact sur...

Embodiment 2

[0025] refer to figure 1 , a method to improve the salt spray resistance of the liquid crystal display module. Four small holes are arranged at equal intervals around the back of the metal heat sink to communicate with the internal structure of the module. The size of the small holes is ϕ3mm, and the center distance between adjacent small holes is 2cm. The hole is covered by SR film with a hardness of 40HA and an elastic modulus of 1.7MPa. The SR film and the metal heat sink are first pre-fixed by pasting double-sided adhesive tape, and the gap between the SR film and the metal heat sink is continuously sprayed with sealant. Secondary fixation, combined with the use of ring clamps and a certain number of screws to achieve sealing reinforcement between the SR film and the metal heat sink; in addition, apply a fluorinated polymer / organic silicon sol hydrophobic coating to the structural gaps of the module, The coating thickness is 700nm.

Embodiment 3

[0027] refer to figure 1 , a method to improve the salt spray resistance of the liquid crystal display module. Eight small holes are arranged at equal intervals around the back of the metal heat sink to communicate with the internal structure of the module. The size of the small holes is ϕ6mm, and the center distance between adjacent small holes is 6cm. The hole is covered by SR film with a hardness of 60HA and an elastic modulus of 3.6MPa. The SR film and the metal heat sink are first fixed by pasting double-sided adhesive tape, and the gap between the SR film and the metal heat sink is continuously sprayed with sealant. Secondary fixation, combined with the use of ring clamps and a certain number of screws to achieve sealing and reinforcement between the SR film and the metal heat sink; in addition, ZnO inorganic super-hydrophobic nano-coating is applied to the structural gap of the module, and the thickness of the coating is 5 μm.

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Abstract

The invention discloses a method for improving the salt spray resistance of a liquid crystal display module. A certain number of small holes wrapped by soft elastic materials are formed in the periphery of the back of a metal heat dissipation plate of the certain size at equal intervals to be communicated with the internal structure of the module, and a hydrophobic material is sprayed to the structural gap of the module so as to achieve the purpose of improving the salt spray resistance of the liquid crystal display module. The method is high in universalization degree and environment suitability and can weaken the breathing effect of the module, and ensure normal work of the liquid crystal display module after a salt spray test and the high-quality display of frames.

Description

technical field [0001] The invention relates to a liquid crystal display improvement, in particular to a method for improving the display performance and lifespan of a liquid crystal display in salt spray, humid heat and other environments, specifically a method for improving the salt spray resistance performance of a liquid crystal display module. Background technique [0002] Salt spray, humid heat and other environments are typical climate environments in the south, coast and sea of ​​my country. This environment is also the main service environment encountered by military liquid crystal display modules during their service life. Can liquid crystal display modules work reliably in this environment? Much depends on its ability to adapt to the hot and humid environment of salt spray. [0003] At present, the design of liquid crystal display modules is mostly not sealed, that is, there are many large-sized holes in the structural design. During the salt spray test, salt water...

Claims

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Application Information

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IPC IPC(8): G02F1/1333
CPCG02F1/1333
Inventor 王璐徐飞郑国兵李忠良张华松吴金华陈建军樊卫华
Owner NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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