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Dimming layer, light uniformizing component and anti-adsorption dimming layer

An anti-adsorption, optical component technology, applied in the field of dimming layers, can solve the problems of not realizing the advantages of high-purity bulk scattering control methods, not having scattering controllability, and not emphasizing surface scattering interference and controlling high-purity bulk scattered light.

Inactive Publication Date: 2020-11-24
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of optics does not have scattering controllability
[0006] (4) Conventional volume scattering coatings, in the existing technical solutions, do not emphasize the control of surface scattering interference to obtain high-purity volume scattering light, and also Unaware of the advantages of high-purity volume-scattering control methods

Method used

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  • Dimming layer, light uniformizing component and anti-adsorption dimming layer
  • Dimming layer, light uniformizing component and anti-adsorption dimming layer
  • Dimming layer, light uniformizing component and anti-adsorption dimming layer

Examples

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Effect test

Embodiment 1

[0242] Such as image 3 As shown, the dimming layer 1 provided by the present invention has a thickness T of 50 μm, includes a propagation medium 1A and a light scattering agent 1B, a light incident surface 101, a light exit surface 102, and 1B are uniformly dispersed in 1A to form a volume scattering system, and the input light 01 It emits from the light-emitting surface 00 of the input light source, enters from the light-incident surface 101 , is regulated by the volume scattering of the light-adjusting layer, and emits from the light-emitting surface 102 to generate the final output light 02 . Among them, 1A is the acrylic resin system in the photocurable polymer resin, the light scattering agent 1B is the polystyrene particles in the polymer particle system, polydisperse, the particle size is 1-3 μm, and the filling rate D' of the volume scattering system is 0.4 . The light-incident surface 101 and the light-exit surface 102 are very flat and smooth, and the surface rough...

Embodiment 2

[0244] For the dimming layer 1 provided in Example 1, the filling rate D' is 0.2, and the shape of the output light 02 is approximately egg-shaped, such as Figure 11c Shown in curve 083 / triangular as Figure 12c As shown in the middle curve 083, the beam angle Φ 2 =90°.

Embodiment 3-15

[0246] For the light-adjusting layer 1 provided in Example 1, the various parameters are listed in Table 3.

[0247]In fact, for the same control method of input light and output light, the combination of the propagation medium and the light scattering agent in the dispersion is not limited to the above-mentioned embodiments, and can be made according to the optical properties (refractive coefficient, extinction coefficient) of the propagation medium and the light scattering agent. Various changes, such as corresponding changes in coating thickness, filling rate, particle size distribution, etc. For the same embodiment, the control combination of input light and output light is not limited to the above embodiment, and different control combinations will be obtained by changing the input light.

[0248] It should be noted that the combination of a specific light-scattering agent and a transmission medium will have different effects, and at least 2 kinds of transmission media or...

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Abstract

The invention relates to a dimming layer based on volume scattering, in particular to a dimming layer, a light uniformizing component and an anti-adsorption dimming layer. In order to improve the collimation transmittance of infrared light and retain the diffusion effect of visible light, the invention provides a dimming layer, a light uniformizing component and an anti-adsorption dimming layer. The anti-adsorption dimming layer comprises a thin plate structure layer and a dimming layer, and the thin plate structure layer is arranged above the upper surface and / or below the lower surface of the dimming layer; the dimming layer contains a light scattering agent, the light scattering agent is arranged between the upper surface and the lower surface of the dimming layer, and the upper surfaceand the lower surface of the dimming layer are very flat and smooth. The filling rate D' of the light scattering agent in the dimming layer is 0.35-0.95, and the particle size D of the light scattering agent is 50-250 nm. The anti-adsorption dimming layer realizes differential regulation and control of infrared light and visible light, so that the infrared light collimation transmittance is high,image signals are clear, the visible light collimation transmittance is low, the diffusion effect is good, meanwhile, the anti-adsorption performance is good, and the anti-adsorption dimming layer isused for replacing a traditional light homogenizing part in a backlight module, so that the LCD mobile phone is helpful to realize an under-screen fingerprint identification function.

Description

technical field [0001] The invention relates to a volume-scattering-based light-adjusting layer, in particular to a high-purity volume-scattering-based light-adjusting layer, a uniform light component and an anti-adsorption light-adjusting layer. Background technique [0002] Traditional optical films have specific optical coatings, but none of them can produce high-purity volume scattering, such as: [0003] (1) Diffusion particle layer, using light to generate multiple refractions and reflections on the surface and interior of the diffusion particles to produce diffusion on a geometrical optical scale, using the geometric shape of the diffusion particles exposed above the glue layer to generate sufficient refractive index difference with the air to expand The optical bending range strengthens the diffusion effect, such as diffusion, atomization, anti-glare and so on. This kind of optical coating has a certain volume scattering because the particles are partially buried in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02
CPCG02B5/0221G02B5/0242G02B5/0294
Inventor 唐海江夏寅付坤王小凯高斌基刘建凯李刚张彦
Owner NINGBO EXCITON TECH
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