Light guide plate surface dirt and scratch treatment

First, why is the surface of the light guide plate dirty and easy to scratch?

The surface of the light guide plate is easy to adhere to dust, fingerprints and other dirt. If it rubs or collides with foreign objects, scratches will occur; in fact, the trait is the same as ordinary acrylic. Only the light guide plate is led out from the inside under the action of the light source, and the dirt and scratch on the surface of the light guide plate are very intuitive, and the ordinary acrylic has no light guiding performance, and can only be seen from the side to see the surface. Dirty and scratches.

Second, the basic common sense of controlling the surface of the light guide plate and scratches:

1. Avoid processing and installing light guide plates in the dust workshop;

2. After removing the protective film on the light guide plate, avoid touching the light guide plate with wet hands or sweat hands;

3. Before the protective film is removed 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. However, if the protective film of the light guide plate is removed early, the protective film should be removed before the process of installing the light guide plate according to the processing flow;

5. When transporting the light guide plate, avoid rubbing and bumping the surface of the light guide plate; in the place where the original light guide plate is placed, sand particles should be prevented from leaking into the light guide plate; when the light guide plate is cut, the foreign matter on the surface of the cut bed should be cleaned;

6. Avoid directly wiping the surface of the light guide with non-cotton materials.

Third, the light guide plate surface dirt treatment common sense:

        The dirt on the surface of the light guide plate mainly includes dust, fingerprints and water stains remaining during casting. The common sense is as follows:

1. Wipe off all the above dirt with cotton fabric and alcohol;

2. After wiping with alcohol, it should be dried or blown dry, otherwise the surface of the light guide plate will retain moisture and produce bright spots after contact with the reflective material or the picture;

3, if the dirt on the surface of the light guide plate is not very obvious, it is recommended not to wipe, otherwise improper handling will produce new scratches;

4. If the light guide plate is stored with static electricity, it is easy to pay dust, and it is not easy to clean. It can be easily removed by using 1% soapy water and soft cotton cloth with soapy water to achieve clean effect.

Fourth, the light guide plate surface scratch treatment common sense:

1. The shallower scratch can be wiped with alcohol to reduce the scratch effect;

2, deep scratches can be polished with electric roller [cloth roller], which is a common method for acrylic products.

5. How to remedy the problem of the surface of the light guide that cannot be handled:

Such as the dirt and scratches on the surface of the light guide plate is 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 problem of the light guide plate:

1. If there is a certain spatial distance between the display screen of the light box or the display and the light guide plate, the defects on the light guide plate are generally not seen after the screen is installed;

2, the special light-colored picture or the picture close to the light guide plate, must be covered with a diffusion film on the defective light guide plate, generally can fully compensate for the surface problem of the light guide plate;

3. There are many types of diffusion films on the market. For example, 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 reduction will generally not exceed 15%