Smoked membrane structure

Abstract

The invention discloses a smoked membrane structure. The smoked membrane structure comprises transparent base materials and a PVA (polyvinyl acetate) layer covering the inner sides of the transparentbase materials, wherein the transparent base materials are membranes made of a high-transparency material. The non-polarized light passing rate of PVA arranged on the smoked membrane structure is 50%,and the polarized light passing rate of PVA as high as about 85%. Therefore, the attractive effect of integral black can be realized when light sources such as a TFT (thin film transistor) screen andthe like are switched off; when the light sources are switched on, the smoked membrane structure does not have obvious attenuation effect on polarized light emitted from the light sources, extra-loadadded to the light sources such as the TFT screen and the like is smaller, high probability of damage caused by long-term high-load and even over-load operation of the light sources such as the TFT screen and the like can be avoided better, and the service life of the light sources is relatively prolonged; besides, because of no need of high-load operation, electric power is saved, and the lightsources are more environmentally friendly.

Description

technical field [0001] The invention relates to an optical film structure, in particular to a smoked film structure for hiding product surface details. Background technique [0002] Smoked film is a kind of black light-transmitting film, which has a certain absorption rate for light, so that only part of the light reaching the surface of the smoked film can pass through the film, and the rest of the light will be absorbed by the film and cannot pass through the smoked film. Smoked film. Therefore, the smoked film is often used as a film for car headlights and TFT screen film (or other user scenarios where it is necessary to hide the details of the surface product from the user). When the screen is turned off, the car lights have the effect of hiding product details from the user, and the TFT screen also enhances its product friendliness due to the "one-piece black" visual effect. [0003] The existing smoked film with a light absorption rate of about 50% is pasted on TFT p...

AI Technical Summary

Problems solved by technology

In the same way, the output power of the car lights also needs to be increased to make the light emitted by the car lights with smoked film have sufficient light intensity, otherwise it will not be able to illuminate the road or warn pedestrians and vehicles

Regardless of whether it is a TFT screen or a car light, the limit power of its design is restricted by the industrial level. On the one hand, the light intensity of the light emitted by operating at the limit power may still not reach normal use after passing through the smoked film. Standards forced to lower product grade specifications

On the other hand, long-term high-power full-load operation is more likely to reduce equipment life and increase power consumption costs, which is not conducive to promoting the environmental protection of products

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