Light guide plate manufacturing method, light guide plate, backlight module and liquid crystal display

A manufacturing method and backlight module technology, applied in chemical instruments and methods, instruments, optics, etc., can solve problems affecting light utilization rate, reflective sheet falling off, etc., save time, manpower and material resources, improve yield rate, and have strong adhesion Effect

Active Publication Date: 2011-07-06
创维集团智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for manufacturing a light guide plate, which aims to

Method used

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  • Light guide plate manufacturing method, light guide plate, backlight module and liquid crystal display
  • Light guide plate manufacturing method, light guide plate, backlight module and liquid crystal display
  • Light guide plate manufacturing method, light guide plate, backlight module and liquid crystal display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 The flow chart of the manufacturing method of the light guide plate provided by the first embodiment of the present invention is shown, and for the convenience of description, only the parts related to this embodiment are shown.

[0029] The manufacturing method of the light guide plate includes the following steps:

[0030] In step S101, a light guide plate base is fabricated.

[0031] In step S102, UV ink is sprayed on the non-light incident side of the light guide plate base.

[0032] This step is to spray the non-light source side of the light guide plate. The so-called "non-light-incident side" refers to the side where no light source is installed or no light is incident on the light guide plate when it is placed in the backlight module.

[0033] In step S103, UV curing is performed on the base of the light guide plate sprayed with UV ink to form a UV ink reflective layer attached to the non-light-incident side.

[0034] In this embodiment, the step of ...

Embodiment 2

[0038] figure 2 The flow chart of the manufacturing method of the light guide plate provided by the second embodiment of the present invention is shown, and for the convenience of description, only the parts related to this embodiment are shown.

[0039] The base of the light guide plate in the first embodiment above may have the structure of a traditional light guide plate, with light guide dots printed on its bottom surface. At this time, the steps of making the base of the light guide plate may specifically include the following steps:

[0040] In step S201, the bulk light guide plate base material is cut into several light guide plate base material units of required size.

[0041] In step S202, the light-incident side surface of the light guide plate base unit is polished.

[0042] In this step, multiple light guide plate substrate units that have been cut can be stacked and stacked, and then polished.

[0043] In step S203, dot printing is performed on the light guide ...

Embodiment 3

[0048] image 3 The flow chart of the manufacturing method of the light guide plate provided by the third embodiment of the present invention is shown, and for the convenience of description, only the parts related to this embodiment are shown.

[0049] The base of the light guide plate in the first embodiment may also be a light guide plate with no light guide dots printed on the bottom surface. At this time, the steps of making the base of the light guide plate may specifically include the following steps:

[0050] In step S301, the bulk light guide plate base material is cut into several light guide plate base material units of required size.

[0051] In step S302, the light-incident side surface of the base unit of the light guide plate is polished to obtain the base of the light guide plate.

[0052] In this step, multiple light guide plate substrate units that have been cut can be stacked and stacked, and then polished.

[0053] After obtaining several laminated light gu...

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Abstract

The invention is applicable in the field of liquid crystal display, and provides a light guide plate manufacturing method. The method comprises the following steps of: manufacturing a light guide plate substrate; spraying UV (ultraviolet) ink to the non-incident side of the light guide plate substrate; and performing UV curing to the light guide plate substrate with UV ink sprayed to form a UV ink reflective layer adhered to the non-incident side. The UV ink reflective layer not only has higher reflection rate, but also has strong adhesive force and falling prevention, can maintain the high light utilization for the light guide plate for a long time so as to ensure the excellent quality of a backlight module. The light guide plate avoids the problems that the adhesive on a reflector on the lateral side of the traditional light guide plate overflows by heat, the base material of the reflector is yellowed and falls off, as well as damage and dirt of the light guide plate and folded reflector caused by manual assembly of the reflector in the traditional printed light guide plate manufacture procedure, and the like. Therefore, the yield of the light guide plate is improved, mass time, manpower and materials are saved, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of liquid crystal displays, and in particular relates to a manufacturing method of a light guide plate, a light guide plate, a backlight module and a liquid crystal display. Background technique [0002] Light guide plate (LGP) is an optical element that converts line light source into surface light source. backlight. The molding method of the light guide plate is mainly printing molding, that is, using optical-grade acrylic / polycarbonate (PC) sheet as the base material, and using high-reflectivity and non-light-absorbing polymer materials (commonly known as ink) on the acrylic / polycarbonate (PC) sheet. The bottom surface of the PC sheet is printed with light guide dots by screen printing technology. After the light emitted from the light source enters the LGP, when it hits each light guide network, the total reflection of the light inside the plate is destroyed, and the reflected light will spread to all angles and...

Claims

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Application Information

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IPC IPC(8): G02B6/00G02F1/13357B32B27/06B29D11/00
Inventor 朋朝明
Owner 创维集团智能科技有限公司
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