Skylight glass with adjustable starry-sky decorative atmosphere lamps

Abstract

The invention relates to skylight glass with adjustable starry-sky decorative atmosphere lamps. The skylight glass is sequentially laminated with a first glass layer, a first adhesive layer, a PDLC dimming film, a second adhesive layer, an electromagnetic shielding film, a third adhesive layer, an LED lamp film, a fourth adhesive layer and a second glass layer in the thickness direction, the electromagnetic shielding film comprises a flexible transparent substrate and a nano-silver conductive film body, the nano-silver conductive film body is attached to the flexible transparent substrate, thesize of the square resistance of the nano-silver conductive film is 2-8 omega / square, and the overall size of the nano-silver conductive film is greater than that of the LED lamp film. The skylight glass combines two photoelectric functions of the dimming technology and the LED luminescence technology simultaneously, and an electromagnetic shielding functional film that can shield low-frequency alternating magnetic field is added between the PDLC dimming film and the LED lamp film, so that the problem that LED lamp beads are mistakenly lit is effectively solved.

Description

Technical field: [0001] The invention relates to the technical field of photoelectric functional glass, in particular to a skylight glass for dimmable starry sky decorative atmosphere lights. Background technique: [0002] With the continuous development of the automobile industry, automobiles as a simple means of transportation can no longer meet people's needs. Modern people hope that automobiles can be more integrated into Internet technology and photoelectric functional technology. It is gradually developing in a more intelligent and functional direction. As glass is an indispensable structural material in the automotive industry, the requirements for the photoelectric functional application of automotive glass have also increased. Photoelectric functional glass commonly includes PDLC dimmable glass and LED luminous decorative laminated glass, among which PDLC dimmable glass introduces a layer of PDLC dimming film between laminated glasses to realize switching between t...

AI Technical Summary

Problems solved by technology

[0004] However, in the actual product application process where PDLC dimming film and LED lamp film are laminated with laminated glass at the same time, it is found that when the LED lamp film is not energized but only the PDLC dimming film is energized, the LED lamp film will be mistaken. However, after research, the inventor found that the reason why the LED lamp film was wrongly lit is as follows: When the PDLC dimming film is powered on, since the PDLC dimming film is driven by AC, the AC frequency is generally 50Hz~60Hz, At this time, a certain intensity of low-frequency alternating magnetic field will be generated around the PDLC dimming film, and the base material of the LED lamp film is generally a transparent ITO conductive film, because the distance between the LED lamp film and the PDLC dimming film is very short. (Generally there is only one layer of PVB in the middle, and the thickness is about 0.38mm~1.0mm). According to Faraday's electromagnetic induction principle, the low-frequency alternating magnetic field generated by the PDLC dimming film in the electrified state will cause the ITO conductive film to generate a certain amount of induced electromotive force. , and the induced electromotive force is enough to drive the small LED lamp beads embedded in the LED lamp film to emit light, resulting in the problem that the LED lamp film is mistakenly lit in the non-energized state, which will greatly affect the customer's perception of the product. Functional experience

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