Water-based liquid-crystal cleaning agent

A cleaning agent and liquid crystal technology, applied in the field of chemical cleaning liquid, can solve problems such as electric corrosion, small environmental pollution, and affect reliability, and achieve the effect of not polluting the environment

Inactive Publication Date: 2007-11-28
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although they have certain functions, after using these liquid crystal cleaning agent compositions to clean the liquid crystal display, some involatile substances will remain in the slits of the liquid crystal display. If these remaining substances are connected into a line, two or more If the electrodes are connected together, it is very easy to cause problems such as electric corrosion that affect reliability, and the effect of completely cleaning impurities such as glass debris cannot be achieved.
[0006] So far, there is no cleaning agent for liquid crystal displays that has little environmental pollution, can effectively clean liquid crystal materials and various impurities in the slits of liquid crystal displays, and does not leave volatile substances in the slits.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Component Content (weight%)

[0029] A(C 6 h 13 O-(CH 2 CH 2 O) 12 C 6 h 13 ) 20

[0030] B(n-C 6 h 13 -(OCH 2 CH 2 ) 2 -OH) 10

[0031] C(C 10 h 22 ) 1

[0032] D (isopropanol) 6

[0033] E (sodium metasilicate) 0.8

[0034] F (deionized water) 62.2

[0035] The above-mentioned cleaning agent uses ultrasonic cleaning, which can effectively clean the residual liquid crystal in the slit after the liquid crystal display is sealed and leveled, as well as glass debris and other impurities on the surface. The cleaning effect is shown in Table 1:

[0036] liquid stable

[0037] In Table 1, ◎: completely washed, ○: almost completely washed, ×: a lot remained

Embodiment 2

[0039] Component Content (weight%)

[0040] A(C 6 h 5 O-(CH 2 CH 2 O) 9 C 4 h 9 ) 32

[0041] B(C 3 h 7 -(OCH 2 CH 2 ) 3 -OH) 15

[0042] C(C 12 h 26 ) 1.5

[0043] D (ethanol) 8

[0044] E (sodium metasilicate) 2.5

[0045] F (deionized water) 41

[0046] The above-mentioned cleaning agent uses ultrasonic cleaning, which can effectively clean the residual liquid crystal in the slit after the liquid crystal display is sealed and leveled, as well as glass debris and other impurities on the surface. The cleaning effect is shown in Table 2:

[0047] liquid stable

Embodiment 3

[0049] Component Content (weight%)

[0050] A(C 6 h 5 O-(CH 2 CH 2 O) 9 C 4 h 9 ) 15

[0051] B(C 3 h 7 -(OCH 2 CH 2 ) 3 -OH) 10

[0052] C(C 12 h 26 ) 0.5

[0053] D (ethanol) 3

[0054] E (sodium metasilicate) 0.5

[0055] F (deionized water) 71

[0056] The above-mentioned cleaning agent uses ultrasonic cleaning, which can effectively clean the residual liquid crystal in the slit after the liquid crystal display is sealed and leveled, as well as glass debris and other impurities on the surface. The cleaning effect is shown in Table 3:

[0057] liquid stable

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PUM

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Abstract

A water-based liquid crystal cleaning agent consists of A component 8-40, B component 5-20, C component 0.5-2, D component 1-10, E component 0.5-5 and F component 40-80, of which A component is compound with formula R1O-(C2H4O)rR2 or R1O-(C3H6O)rR2, B component is compound with formula R3(OC2H4)s-OH, C component is compound with formula CnH2n+2 or CnH2n, D component is lower alcohol, E component is silicate and F component is deionized water. It achieves good effect, no residual involatile substances and environmental pollution.

Description

technical field [0001] The invention relates to a chemical cleaning solution, in particular to a water-based liquid crystal cleaning agent for cleaning residual liquid crystal or other impurities in a liquid crystal panel. Background technique [0002] The cleaning of liquid crystal display is a key step in the production of liquid crystal display. Its purpose is to remove liquid crystal residues and other impurities after sealing and leveling, because the existence of residues will corrode the electrode leads and hinder the placement process, which will seriously affect The quality and lifespan of LCD monitors. [0003] However, since the gap between the glass substrates of the liquid crystal display is about 6 microns, a cleaning agent having a high cleaning ability is required to remove the immersed liquid crystal material. Known ODS such as freon and carbon tetrachloride have such excellent cleaning ability, but these substances also have obvious side effects at the sam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D7/60G02F1/13
Inventor 马红旭
Owner BYD CO LTD
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