Photoconductive ink as well as preparation method and use method thereof

A light-guiding ink and photoinitiator technology, applied in ink, application, optics, etc., can solve problems such as light guide plate deformation and ink color shift, achieve the effects of preventing deformation, avoiding color shift, and improving display quality

Active Publication Date: 2011-06-01
BOE TECH GRP CO LTD
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Problems solved by technology

[0007] The first object of the present invention is to provide a light-guiding ink and its preparation method and use method to solve the defect of color shift in the prior art when the ink is solidified, to reduce or prevent the occurrence of color shift, so that it does not affect the liquid cry

Method used

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  • Photoconductive ink as well as preparation method and use method thereof
  • Photoconductive ink as well as preparation method and use method thereof
  • Photoconductive ink as well as preparation method and use method thereof

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Embodiment Construction

[0029] The light guiding ink of the present invention comprises: 2-25 parts by weight of scattering particles, 10-50 parts by weight of resin, 0.01-0.5 parts by weight of pigment, 20-75 parts by weight of solvent, and 0-8.5 parts by weight of photoinitiator And 0.01-3.5 parts by weight of additives.

[0030] Among them, the characteristics of the material of the scattering particles determine the refractive index of the light-guiding ink. If the refractive index is too low, the light scattering is weak, and the light uniformity effect cannot be achieved; while the refractive index is too high, the scattering is too strong, which is easy to cause light loss. If the particle size is too small, it is difficult to scatter light and reduce the brightness of the light guide plate; if the particle size is too large, it is easy to cause back reflection light loss, which also leads to a decrease in brightness. In the present invention, titanium dioxide, barium sulfate, magnesium oxide,...

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Abstract

The invention provides a photoconductive ink as well as a preparation method and a use method thereof. The photoconductive ink is prepared from the following components in parts by weight: 2-25 parts of scattering particles, 10-50 parts of resin, 0.01-0.5 part of pigment, 20-75 parts of solvent, 0-8.5 parts of photoinitiator and 0.01-3.5 parts of additive. By adopting a UV (Ultra Violet) curing process or adopting a material with a low curing temperature in a thermal curing process, the curing temperature adopted by the invention is lower than the deformation temperature of a photoconductive plate and the photoconductive plate is prevented from being deformed. In addition, by the reasonable mixing of components and the reasonable combination of the pigment, the color cast problem is reduced or avoided and the display quality of an LCD (Liquid Crystal Display) is improved.

Description

technical field [0001] The invention relates to an ink, in particular to a light-guiding ink used for a light-guiding plate of a backlight module of a liquid crystal display and a preparation method and an application method thereof. Background technique [0002] A liquid crystal display is composed of a liquid crystal panel and a backlight module. Since a liquid crystal display is a non-self-luminous display device, a backlight module is required to provide a light source. [0003] Most of the backlight modules use a light guide plate to evenly incident the light emitted from the backlight to the liquid crystal panel of the liquid crystal display. [0004] On the back of the light guide plate, a pattern made of ink is formed by printing, or by chemical etching (Etching), precision mechanical scribing (V-cut), photolithography (Stamper) and internal dispersion when the light guide plate is formed. Diffuse reflection occurs when light hits the ink pattern on the back of the ...

Claims

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Application Information

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IPC IPC(8): C09D11/10
CPCC08K3/36C09D5/028C08K3/22G02B6/0065C09D11/101G02B6/0041C08K3/30C09D11/037C09D11/104C09D11/36C09D7/1266C09D7/1275C09D7/67C09D7/68
Inventor 杨久霞吕艳英
Owner BOE TECH GRP CO LTD
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