High-brightness thinned miniled backlight structure

Abstract

The high-brightness thinned miniled backlight structure comprises a back plate, a PDLC dimming film is arranged in the back plate, the PDLC dimming film comprises two PET base materials and a refraction layer, the refraction layer is located between the two PET base materials, an ITO conductive circuit is arranged on the side, close to the refraction layer, of each PET base material, and the ITO conductive circuit is arranged on the other side, close to the refraction layer, of each PET base material. The refraction layer comprises a polymer and a liquid crystal, the number of the PDLC light adjusting films is two, and a transparent isolating film is arranged between the two PDLC light adjusting films. According to the high-brightness thinned miniled backlight structure, the PDLC light adjusting films are adopted to replace a plurality of structural diffusion films in backlight, the product thickness can be greatly reduced, the thinned requirement of the product is met, and the high-brightness thinned miniled backlight structure is suitable for large-scale popularization and application. Meanwhile, the number of materials is reduced, backlight assembly is facilitated, LED arrangement pitches can be added in ultrathin products, the number of LEDs is reduced, and the problems that the layout space of a lamp panel is insufficient and the layout space of a PCB is insufficient are solved.

Description

technical field [0001] The invention relates to the technical field of backlight production and manufacturing, in particular to a high-brightness and thinned miniled backlight structure. Background technique [0002] Miniled technology products have many advantages such as high brightness, high contrast, and partition control to save power consumption. According to product specification requirements, they can be applied to products of different sizes from mobile phones to TVs. [0003] In traditional miniled backlight material stacking such as Figure 1 As shown, from bottom to top are light board, BLT, QD, multiple structural diffusion films, BEF, and upper diffusion film; Figure II As shown, from bottom to top are the lamp panel, BLT, QD, multi-layer structure diffusion film, BEF, and upper diffusion film. [0004] Multiple structural diffusion films are placed above the light panel to shield the LED dot mura. The total thickness of multiple structural diffusion films an...

AI Technical Summary

Problems solved by technology

[0004] Multiple structural diffusion films are placed above the light panel to shield the LED dot mura. The total thickness of multiple structural diffusion films and printed dot diffusion plates required by this solution is usually relatively thick, which is difficult to meet the thickness requirements of ultra-thin products. And in order to reduce the thickness of the product as much as possible, it is necessary to reduce the miniled pitch and increase the number of LEDs, resulting in a significant increase in cost

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