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Light guide plate cleaning method

A technology of light guide plate and cleaning liquid, which is applied to cleaning methods and utensils, cleaning methods using liquids, chemical instruments and methods, etc. and other problems to achieve the effect of improving the cleaning yield

Inactive Publication Date: 2019-05-07
SHENZHEN LONGLI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current light guide plate is cleaned by manual wiping, but after manual wiping, the surface of the acrylic or / PC board cannot meet the cleanliness required for assembling the backlight module. At the same time, it is difficult to control the strength of manual wiping, which may easily lead to dark shadows on the light guide plate. Surface damage such as bruises or bruises. In addition, there are brushes or water guns for cleaning. However, these cleaning methods have low cleaning efficiency and poor cleaning effect, and cannot remove stains in the microstructure. At the same time, brushes and water guns will scratch the surface. The light guide plate affects the light transmission effect and use effect of the light guide plate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The cleaning plan of the light guide plate is as follows:

[0039] 1) The light guide plate undergoes 4 cleaning processes in sequence;

[0040] 2) The four cleaning procedures are as follows:

[0041] a) 1 ultrasonic heat rough cleaning; adding petroleum ether as a dissolution aid in the cleaning solution, the heating temperature of the ultrasonic heat rough wash is 60°C, the ultrasonic frequency is 20kHz, and the ultrasonic cleaning time is 300s;

[0042] b) 2 fine rinsing, the rinsing solution of the fine rinsing is ethanol, soaking and rinsing are adopted, the rinsing temperature is 65°C, and the number of rinsing times is 3 times;

[0043] c) 3 coarse rinsings, soaking and rinsing with clean water, rinsing temperature 65°C, rinsing times 3 times;

[0044] d) 4 channels of clear water spray washing, the spray head ring is set around the cleaning station to fully spray and rinse the surface of the light guide plate, the cleaning temperature is 60°C, and the cleanin...

Embodiment 2

[0049] The cleaning plan of the light guide plate is as follows:

[0050] 1) The light guide plate undergoes 4 cleaning processes in sequence;

[0051] 2) The four cleaning procedures are as follows:

[0052] a) 1 ultrasonic heat rough cleaning; adding petroleum ether as a dissolution aid to the cleaning solution, the heating temperature of the ultrasonic heat rough wash is 75°C, the ultrasonic frequency is 40kHz, and the ultrasonic cleaning time is 150s;

[0053] b) 2 fine rinsing, the rinsing solution of the fine rinsing is distilled water, soaking and rinsing are adopted, the rinsing temperature is 75°C, and the number of rinsing times is 3 times;

[0054] c) 3 coarse rinsings, soaking and rinsing with clean water, rinsing temperature 75°C, rinsing times 3 times;

[0055] d) 4 clean water spray washes, and the spray head ring is set around the cleaning station to fully spray and rinse the surface of the light guide plate. The cleaning temperature is 75°C and the cleaning ...

Embodiment 3

[0060] The cleaning process of the light guide plate is as follows:

[0061] 1) The light guide plate undergoes 4 cleaning processes in sequence;

[0062] 2) The four cleaning procedures are as follows:

[0063] a) 1 ultrasonic heat rough cleaning; adding petroleum ether as a dissolution aid in the cleaning solution, the heating temperature of the ultrasonic heat rough wash is 65°C, the ultrasonic frequency is 25kHz, and the ultrasonic cleaning time is 150s;

[0064] b) 2 fine rinsing, the rinsing solution of the fine rinsing is saturated salt water, soaking and rinsing are adopted, the rinsing temperature is 65°C, and the number of rinsing times is 3 times;

[0065] c) 3 coarse rinsings, soaking and rinsing with clean water, rinsing temperature 65°C, rinsing times 3 times;

[0066] d) 4 channels of clear water spray washing, the spray head ring is set around the cleaning station, so as to fully spray and rinse the surface of the light guide plate, the cleaning temperature i...

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PUM

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Abstract

The invention provides a light guide plate cleaning method. A light guide plate is sequentially subjected to four cleaning procedures; the four cleaning procedures comprise a first ultrasonic thermalrough washing procedure, a second fine rinsing procedure, a third rough rinsing procedure and a fourth water spray washing procedure; after the cleaning procedures are completed, the light guide plateis dried; and the surface of the light guide plate can be blow-dried through air blowing before drying, and finally the light guide plate is packaged for use. A cleaning agent and a dissolution aid are adopted by the first ultrasonic thermal rough washing procedure as cleaning liquid, a washing agent is adopted by the second fine rinsing procedure for still rinsing, clear water is adopted by thethird rough rinsing procedure for rinsing, and clear water is adopted by the fourth water spray washing procedure for cleaning the surface of the light guide plate, after the cleaning procedures are completed, all kinds of impurities, oil stains and dust on the light guide plate can be removed, the cleaning cleanliness and the cleaning efficiency are high, in addition, brush friction and water gunimpact treatment are adopted by the method, the light guide plate is not scratched, and thus the cleaning yield is increased.

Description

technical field [0001] The invention relates to the field of light guide plate processing, in particular to a method for cleaning a light guide plate. Background technique [0002] The light guide plate is one of the key parts in the backlight module, which converts the point / line light source into a uniform surface light source. The composition of the light guide plate is optical-grade acrylic / PC sheet, and then use high-tech materials with extremely high reflectivity and non-absorbing light, and set dots, sawtooth or v-cut grooves on the light-emitting surface and reflective surface of the optical-grade acrylic sheet structure. At present, the manufacturing methods of light guide plate scattering dots include mold forming method, ink printing method and laser processing method, etc. During the dot manufacturing process, there will be phenomena such as uneven printing, printing misalignment or dot overlapping and missing printing, which will result in defective light guide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B3/12B08B3/10B08B3/04B08B3/02
Inventor 张小齐李朝李琪
Owner SHENZHEN LONGLI TECH CO LTD
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