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Optical film, polarizer, backlight module and display device
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An optical film and optical technology, applied in the optical field, can solve the problem that the optical film cannot guarantee the light emitting efficiency and light emitting uniformity at the same time, and achieve the effect of improving the light emitting efficiency and improving the light emitting uniformity.
Active Publication Date: 2021-02-19
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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[0005] The main purpose of the present invention is to provide an optical film, a polarizer, a backlight module and a display device, so as to solve the problem that the optical film in the prior art cannot guarantee the light output efficiency and light output uniformity at the same time
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Embodiment 1
[0053] The optical film provided in this embodiment includes an atomized coating layer, a first microstructure layer and a second microstructure layer, a first bonding layer, a first substrate layer, and an atomized bonding layer that are sequentially stacked, wherein the first The first microstructure layer is a lens layer, the second microstructure layer is a prism layer, the cross section of the prism structure in the prism layer is triangular, the first base material layer and the second base material layer are both PET layers, and the first bonding layer is acrylic Ester OCA glue, the material for forming the atomized coating is polyolefin, and the haze value of the atomized coating is 1%, the thickness is 10 μm, and the material for forming the atomized bonding layer is SiO 2 particles, and the haze value of the atomized laminating layer is 99%, the thickness is 8 μm, and the adhesion is 50 gf / in.
Embodiment 2
[0055] The difference between the optical film provided in this embodiment and Embodiment 1 is:
[0056] The optical film comprises an atomized coating layer, a second substrate layer, a first microstructure layer and a second microstructure layer, a first bonding layer, a first substrate layer and an atomized bonding layer that are sequentially stacked to form a fog The material of the atomized coating is polystyrene, and the haze value of the atomized coating is 2%, and the material forming the atomized bonding layer is OCA glue and polyolefin, and the haze value of the atomized bonding layer is 1%. , the thickness of the atomized bonding layer is 10 μm, and the adhesion of the atomized bonding layer is 55 gf / in.
Embodiment 3
[0058] The difference between the optical film provided in this embodiment and Embodiment 1 is:
[0059]The optical film includes an atomized coating, a second substrate layer, a first microstructure layer, a second bonding layer, a third substrate layer and a second microstructure layer, a first bonding layer, a first The substrate layer and the atomized bonding layer, the material forming the second bonding layer is acrylic PSA glue, the material forming the atomized coating is polystyrene, and the haze value of the atomized coating is 2%, The materials forming the atomized bonding layer are OCA glue and polystyrene, the haze value of the atomized bonding layer is 2%, the thickness of the atomized bonding layer is 100 μm, and the adhesion of the atomized bonding layer is 155gf / in.
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Abstract
The invention provides an optical film, a polarizer, a backlight module and a display device. The optical film comprises an atomized coating layer, an optical composite layer, a first bonding layer, a first base material layer and an atomized bonding layer which are sequentially stacked, wherein the optical composite layer comprises a sequence along the direction away from the atomized coating layer. The first microstructure layer and the second microstructure layer are stacked, and the first microstructure layer and the second microstructure layer are respectively selected from any one of the light-gathering layer and the light-diffusing layer, and the atomized coating and the atomized sticker The haze values of the combined layers are each independently 1 to 99%. Through the combination of the above-mentioned first microstructure layer and the second microstructure layer, the light extraction efficiency of the optical film is improved; and, since the above-mentioned atomized coating and atomized bonding layer respectively arranged on both sides of the surface have atomized characteristics, Therefore, not only the uniformity of light output of the optical film is improved, but also a certain shielding property can be endowed to the optical film, so that it has the additional function of covering the abnormalities generated on the surface of the underlying optical composite layer.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to an optical film, a polarizer, a backlight module and a display device. Background technique [0002] With the development of the information age, flat panel displays such as active matrix liquid crystal displays (LCDs), plasma display panels (PDPs), electroluminescence displays (ELs), and field emission displays (FEDs) have appeared, which The display has excellent properties such as thin profile, light weight and low power consumption. Among them, LCDs are widely used in notebook computers, monitors, TVs, etc. instead of cathode ray tubes (CRTs) due to their high contrast ratio and characteristics suitable for displaying moving images. [0003] A light source is not included in the LCD, so an additional light source is required. For example, a backlight module including a light source is arranged under the liquid crystal panel to provide light to the liquid crystal panel, so ...
Claims
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Application Information
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