Reflection polarization brightening diffusion composite film

A diffusion composite and reflective technology, applied in the direction of optics, optical elements, diffuser elements, etc., can solve the problems of increasing frontal brightness, complicated process, and reduced viewing angle, so as to simplify the manufacturing process, reduce the number of processes, and achieve excellent The effect of fit and adhesion

Active Publication Date: 2015-01-28
昆山乐凯锦富光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the first method, the PET diffusion film is a birefringent stretched film, which has a polarized effect on the light passing through the polarizing film. It is necessary to choose an angle during lamination, and the process is complicated; the second method is to diverge the original large viewing angle. The prism surface gathers and emits within a range of about 70 degrees, which increases the brightness of the front view and also reduces the viewing angle.

Method used

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  • Reflection polarization brightening diffusion composite film
  • Reflection polarization brightening diffusion composite film
  • Reflection polarization brightening diffusion composite film

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Put dimethyl naphthalene dicarboxylate and ethylene glycol in the macromolecular polymerization reactor, and it is the first resin that 100 mol% of naphthalene dicarboxylate repeating unit is manufactured by condensation polymerization; In the macromolecular polymerization reactor Put dimethyl naphthalate, ethylene glycol, and terephthalic acid separately, and produce ethylene terephthalate with a repeating unit of ethylene naphthalate of 40 mol% by condensation polymerization as described above. The repeating unit is 60 mole % of the second resin. The produced first resin was dried at 100° C. for 24 hours to remove water by a dryer, and the second resin was dried at 70° C. for 48 hours to remove water. The first resin and the second resin were respectively produced 4 layers through the feedblock method at a rate of 30kg / hr, and then passed through the compound multiplier to finally produce an 800-layer extruded film. The manufactured multilayer extruded film was uniax...

Embodiment 2

[0037] Put dimethyl naphthalate, ethylene glycol, and terephthalic acid in a polymer polymerization reactor, and produce ethylene terephthalate with a repeating unit of 90 mol% of ethylene terephthalate through condensation polymerization. Alcohol ester repeating unit is the first resin of 10 mol %; Put dimethyl naphthalate, ethylene glycol, terephthalic acid respectively in the macromolecular polymerization reactor, manufacture naphthalene dicarboxylate by condensation polymerization as mentioned above The second resin containing 60 mol % of ethylene glycol formate repeating units and 40 mol % of ethylene terephthalate repeating units. The produced first resin was dried at 100° C. for 24 hours to remove water by a dryer, and the second resin was dried at 70° C. for 48 hours to remove water. The first resin and the second resin were respectively produced 4 layers through the feedblock method at a rate of 30kg / hr, and then passed through the compound multiplier to finally produ...

Embodiment 3

[0041] Put dimethyl naphthalate, ethylene glycol, and terephthalic acid in a polymer polymerization reactor, and produce hexylene naphthalate repeating unit of 80 mole %, ethylene terephthalate through condensation polymerization. Alcohol ester repeating unit is the first resin of 20 mol %; Put dimethyl naphthalate, ethylene glycol, terephthalic acid respectively in the macromolecular polymerization reactor, manufacture naphthalene dicarboxylate by condensation polymerization as mentioned above The second resin containing 50 mol % of ethylene glycol formate repeating units and 50 mol % of ethylene terephthalate repeating units. The produced first resin was dried at 100° C. for 24 hours to remove water by a dryer, and the second resin was dried at 70° C. for 48 hours to remove water. The first resin and the second resin were respectively produced 4 layers through the feedblock method at a rate of 30kg / hr, and then passed through the compound multiplier to finally produce a 600-...

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Abstract

The invention discloses a reflection polarization brightening diffusion composite film which comprises a base film, a first adhesive layer formed on the surface of the base film and a second adhesive layer on the other surface of the base film. A first mist layer is arranged on the first adhesive layer, a second mist layer is arranged on the second adhesive layer, the first mist layer and the second mist layer has uneven surfaces, the first mist layer is provided with a fine mist face with the roughness as 13-17mum and a coarse mist face with the roughness as 25-30 mum, and the fine mist face of the first mist layer is connected with the first adhesive layer. The second mist layer is provided with a fine mist face with the roughness as 13-17mum and a coarse mist face with the roughness as 25-30 mum, the fine mist face of the second mist layer is connected with the second adhesive layer, and the first mist layer and the second mist layer are non-stretching isotropic films. The brightness of the film is improved by over 50% compared with a common prism film, the view angle is increased, and the flow of the base film can be shielded, and the requirement of a backlight module is met.

Description

technical field [0001] The invention relates to a reflective polarized brightness enhancing diffusion composite film in a backlight module. Background technique [0002] Liquid crystal display, as a kind of flat panel display device that uses liquid crystal to display images, is thinner and lighter than other flat panel display devices, and has the advantages of low driving voltage and low power consumption, and is widely used in the whole industry. [0003] The liquid crystal display includes a liquid crystal panel, which is composed of a thin film transistor TFT substrate, a color filter substrate opposite to the TFT substrate, and a liquid crystal layer interposed between the two substrates to change the photoelectric transmittance. Moreover, since the liquid crystal panel used to display images in the liquid crystal display is a non-luminescent component that cannot emit light by itself, a backlight unit that supplies light to the liquid crystal panel is required. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02G02B5/30B32B3/30B32B7/12B32B27/06
CPCB32B3/30B32B7/12B32B27/06B32B2457/20G02B5/0226G02B5/305
Inventor 鲁若娜常国岭王腾孟亮
Owner 昆山乐凯锦富光电科技有限公司
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