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1. Why is the surface of the light guide plate dirty and easy to scratch?
The surface of the light guide plate is susceptible to dirt, fingerprints, and other dirt. If it rubs or collides with a foreign object, scratches may occur; in fact, this property is the same as ordinary acrylic. Only the light guide plate is led out from the inside under the action of the light source. The dirt and scratches on the surface of the light guide plate are very intuitive, while the ordinary acrylic does not have the light guide performance. Only careful observation from the side can see the surface of the light guide plate. Dirty and scratches.
Second, the basic knowledge of controlling the surface of the light guide plate dirt and scratches:
1. Avoid processing and installing light guide plates in dust workshops;
2. After removing the protective film from the light guide plate, the light guide plate should not be touched with wet or sweaty hands;
3. Before removing the protective film from the light guide plate, the dust and debris in the surface of the light guide plate and the mounting structure should be cleaned;
4, but early removal of the light guide plate protective film, should be based on the processing process, remove the protective film before the installation of the light guide plate process;
5. When transporting the light guide plate, it is necessary to avoid arbitrarily rubbing and bumping against the surface of the light guide plate; the leakage of sand particles into the light guide plate should be avoided at the place where the light guide plate is placed; the foreign materials on the surface of the cutting bed should be cleaned when the light guide plate is cut;
6. Avoid directly cleaning the surface of the light guide plate with non-cotton materials.
Third, the light guide surface dirt knowledge:
The dirt on the surface of the light guide plate mainly includes dust, fingerprints and residual water stains during pouring. Handling common sense is as follows:
1. Use cotton fabric and alcohol to wipe off all the above dirt;
2. After wiping with alcohol, it should be air-dried or blow-dried, otherwise, the surface of the light guide plate will have residual moisture, which will produce bright spots after contact with the reflective material or the screen;
3. If the surface of the light guide plate is not very contaminated, it is recommended not to wipe it. Otherwise, new scratches will be generated if handled improperly;
4, light guide plate, such as static electricity is easy to pay dust, and is not easy to clean; use 1% of soapy water, with a soft cotton cloth soaked in soapy water can easily remove dust and achieve clean results.
Fourth, the surface of the light guide plate scratches common sense:
1. Lighter scratches can be wiped with alcohol to reduce scratches;
2. Deeper scratches can be polished with electric roller [cloth roller], which is a common method for acrylic products.
Fifth, how to remedy the problem of the surface of the light guide plate that cannot be handled:
For example, the dirt and scratches on the surface of the light guide plate are more difficult to handle, or the processing work will affect the overall work efficiency; the following methods can make up for the defects caused by the surface of the light guide plate on the product:
1. If there is a certain spatial distance between the display screen of the light box or display and the light guide plate, the defects on the light guide plate will generally not be seen after the screen is installed;
2. A special light-colored picture or image clinging to the light guide plate must be covered with a diffusion film on the defective light guide plate, which generally can completely compensate for the surface problem of the light guide plate;
3. At present, there are many types of diffusion films on the market. If the light guide plate is particularly scratched, a thicker diffusion film may be used, which may affect the brightness of the light guide plate, but the brightness decrease will not exceed 15%.
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