Blue light conversion tape and backlight module

Abstract

The invention discloses a blue light conversion tape which comprises a substrate layer, an adhesive layer and a composite layer; the substrate layer is provided with an upper surface and a lower surface; the adhesive layer is arranged at the lower surface of the substrate layer; the composite layer is arranged at the upper surface of the substrate layer; the composite layer is made of film-forming resin, a parting agent and fluorescent powder; the fluorescent powder can absorb blue light and the blue light can be converted to white light; the weight of the fluorescent powder is 5-80% that of the film-forming resin; and the weight of the parting agent is 1-20% that of the film-forming resin. The blue light conversion tape has parting and blue light conversion performances and is simple in structure; after the blue light conversion tape is pasted on a light leakage surface of a light guide plate of the backlight module, the defect of leakage of the blue light in the backlight module can be overcome, the chroma uniformity of the backlight module is improved, the color white balance is maintained, and the display quality is improved.

Description

technical field [0001] The invention belongs to the technical field of tapes, and in particular relates to a blue light conversion tape and a backlight module. Background technique [0002] In recent years, quantum dot films have been used more and more in the display industry. The backlight modules containing quantum dot films have the advantages of wider color gamut and brighter. The backlight modules containing quantum dot films use blue The blue LED light source has a blue light leakage phenomenon at the edge of the module. This phenomenon causes the display screen to have a bluish phenomenon at the edge of the display screen, which affects the customer experience. [0003] At present, black masking glue is used to solve the problem of light leakage when assembling modules, but this solution still has light leakage because it cannot completely shield blue light. The blue light is synthesized into white light, but due to the high unit price of the quantum dot film, the c...

AI Technical Summary

Problems solved by technology

[0002] In recent years, quantum dot films have been used more and more in the display industry. The backlight modules containing quantum dot films have the advantages of wider color gamut and brighter. The backlight modules containing quantum dot films use blue The blue LED light source appears on the edge of the module, and this phenomenon causes the display screen to appear bluish at the edge of the display screen, which affects the customer experience

[0003] At present, black masking glue is used to solve the problem of light leakage when assembling modules, but this solution still has light leakage because it cannot completely shield blue light. The blue light is synthesized into white light, but due to the high unit price of the quantum dot film, the cost is high. At the same time, due to the instability of the quantum dot to water vapor and oxygen, the shading will weaken over time. At the same time, because the shading uses a narrow size, its life Larger size quantum dot film is shorter

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