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Method for manufacturing rubber frame and light plate of backlight module by two-material ejection

A backlight module and light guide plate technology, applied in optics, nonlinear optics, instruments, etc., to achieve the effect of avoiding bonding lines

Inactive Publication Date: 2006-04-12
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the injection molding process, because the bonding line 25 is a complicated three-dimensional welding area, and the relationship between the size and thickness of the light guide plate itself, the above methods will inevitably produce bonding lines.

Method used

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  • Method for manufacturing rubber frame and light plate of backlight module by two-material ejection
  • Method for manufacturing rubber frame and light plate of backlight module by two-material ejection
  • Method for manufacturing rubber frame and light plate of backlight module by two-material ejection

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] see figure 2 , figure 2 It is a flow chart of the method of the present invention. The steps are as follows:

[0030] Step 100: Determine a preset quantity of light sources of a backlight module.

[0031] Step 102: Provide a first plastic injection point of the light guide plate and a second plastic injection point of the light guide plate, the first plastic injection point of the light guide plate is adjacent to the predetermined position of the light source, and the second plastic injection point of the light guide plate point away from the preset position of the light source.

[0032] Step 104: Inject a first plastic to form a plastic frame.

[0033] Step 106: Determine whether the preset number of light sources is an odd number, if yes, execute step 108, if not, execute step 110.

[0034] Step 108: When the predetermined number of light sources is odd, inject second plastic from the plastic injection point of the second light guide plate to form the light gui...

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Abstract

This invention relates to a method for emitting a rubber frame and a light conduction plate for manufacturing a backlight module with two materials including the following steps: deciding the preset number of the light sources of a back module to select a plastic glue entering point of a first light conduction plate or that of the second, in which, the glue entering point of the first plate is close to the preset position of the light source, the point of the second plate is far from the preset position of the light source and the rubber frame and the light conduction plate formed at one run are emitted with two materials.

Description

technical field [0001] The invention relates to a method for manufacturing a plastic frame and a light guide plate by double-material injection, in particular to a method for manufacturing a plastic frame and a light guide plate for a backlight module of a liquid crystal display by double-material injection. Background technique [0002] Backlight module (Back light module) is one of the key components of LCD panel (Liquid crystal display panel, LCD panel). Since the liquid crystal itself does not emit light, the function of the backlight module is to supply sufficient brightness and evenly distributed light source. The simple and effective light mechanism converts it into a surface light source with high brightness and uniform luminance to provide the backlight source for the LCD panel. Liquid crystal display panels are now widely used in monitors, notebook computers, digital cameras, projectors and other electronic products with growth potential, especially large-sized pan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
Inventor 曾德海
Owner AU OPTRONICS CORP