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A kind of wire grid polarizer, display device and preparation method of wire grid polarizer

A technology of wire grid polarization and reflective strips, applied in polarizing components, instruments, optics, etc., can solve the problem of low transmittance of P-polarized light and achieve high transmittance of P-polarized light

Active Publication Date: 2019-06-25
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a wire grid polarizer, a display device and a preparation method of the wire grid polarizer to solve the problem of low transmittance of P polarized light in the existing wire grid polarizer

Method used

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  • A kind of wire grid polarizer, display device and preparation method of wire grid polarizer
  • A kind of wire grid polarizer, display device and preparation method of wire grid polarizer
  • A kind of wire grid polarizer, display device and preparation method of wire grid polarizer

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Embodiment 1

[0032] refer to figure 1 , shows a schematic cross-sectional structure diagram of a wire grid polarizer according to an embodiment of the present invention.

[0033] Embodiment 1 of the present invention provides a wire grid polarizer, which includes a plurality of reflective strips 12 formed on a substrate 11 that are parallel to each other and arranged at equal intervals. The width of the cross section of the reflective strips 12 is perpendicular to the The direction of the bottom 11 is not uniform.

[0034] in, figure 1 The cross-section of the reflective strip 12 is hexagonal, but the cross-sectional shape of the reflective strip 12 in the embodiment of the present invention is not limited to hexagonal, and its cross-section can also be polygonal such as triangle, trapezoid, or ellipse, Closed curved shapes such as circles, or closed shapes formed by curves and straight lines such as circular arcs, any geometric shapes that meet the required conditions can be applied to ...

Embodiment 2

[0049] Embodiment 2 of the present invention also provides a display device, which includes the above-mentioned wire grid polarizer, and the wire grid polarizer includes a plurality of reflective strips formed on a substrate that are parallel to each other and arranged at equal intervals. The width of the section is not uniform in the direction perpendicular to the substrate.

[0050] Wherein, the cross section of the reflective strip may be hexagonal or other shapes.

[0051] In a specific implementation of the present disclosure, the reflective strip has a hexagonal cross section.

[0052] In a specific implementation of the present disclosure, the reflective strips have a thickness of 5 nm˜200 nm. The ratio of the first width to the second width of the reflective strip is 0.6 to 0.8; the first width is the minimum width on the cross section of the reflective strip, and the second width is the minimum width on the cross section of the reflective strip. maximum width. The ...

Embodiment 3

[0059] refer to Figure 5 , which shows a flow chart of a method for preparing a wire grid polarizer according to Embodiment 3 of the present invention, which may specifically include the following steps:

[0060] Step 501, coating an organic substance on a substrate.

[0061] In the embodiment of the present invention, firstly, an organic substance is evenly coated on the substrate, and the organic substance is epoxy resin or acrylic resin.

[0062] refer to Figure 6 , which shows a schematic cross-sectional structure diagram of the wire grid polarizer after the organic coating is completed during the process of preparing the wire grid polarizer provided in Example 1.

[0063] Coat the organic matter 121 on the substrate 11, and the coating thickness should be greater than the required thickness of the reflective strips.

[0064] Step 502 , forming a plurality of reflective strips parallel to each other and arranged at equal intervals on the organic matter through a patte...

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Abstract

The invention provides a wire grid polarizer, a display device and a preparation method of the wire grid polarizer, and relates to the technical field of display. The wire grid polarizer is characterized in that multiple reflection bars which are parallel to each other and are arranged at intervals are formed on a substrate, and the widths of the cross sections of the reflection bars are not uniform in the direction which is vertical to the substrate. According to the wire grid polarizer, the display device and the preparation method of the wire grid polarizer, provided by the invention, the P polarized light transmittance of the reflection bars is not affected by parameters of a period, a duty ratio, the height and the like, the widths of the cross sections of the reflection bars are set to be not uniform in the direction which is vertical to the substrate, the reflection bars can be equivalent to multiple thin layers, the parameters of the periods, the duty ratios and the like among all thin layers are different, and higher P polarized light transmittance is realized by regulating the parameters of the periods, the duty ratios and the like among the thin layers.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a wire grid polarizer, a display device and a preparation method of the wire grid polarizer. Background technique [0002] LCD (Liquid Crystal Display, liquid crystal display) generally includes components such as array substrate, color film substrate and backlight source, and the side surface of the color film substrate opposite to the array substrate is equipped with a wire grid polarizer (WGP, Wire Grid Polarizer). A polarizer is a type of polarizer. [0003] At present, the wire grid polarizer includes a plurality of parallel and equally spaced reflective strips, such as metal lines, arranged on a substrate, and its cross-section is generally rectangular. The light emitted by the backlight includes light vibrating in various directions. When the light emitted by the backlight is incident on the wire grid polarizer, under the vibration of free electrons on the metal surface,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/30
CPCG02B5/3058
Inventor 贾倩
Owner BOE TECH GRP CO LTD