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Large-dimension light guide plate glass and manufacturing method thereof

A manufacturing method and technology of light guide plate, applied in optics, light guides, optical components, etc., can solve the problems of ultra-thin, low strength, and thick equipment that do not conform to electronic products, and achieve light weight, firm weight, and cost-saving assembly. Effect

Inactive Publication Date: 2015-11-18
锡佛光电(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing light guide plate is mainly made of acrylic (acrylic), which has low strength; and after assembly, the equipment (computer, TV, etc.) will be thicker, which does not meet the trend of ultra-thin electronic products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment provides a large-size light guide plate glass, and its manufacturing method includes the following steps in sequence:

[0022] (a) Cut the original glass sheet with a thickness of 1mm into a 55-inch glass plate;

[0023] (b) Grind the glass plate to form a rounded corner, and then perform straight edge grinding and polishing on one side (light-incident surface) so that there is no edge explosion or grinding wheel marks;

[0024] (c) Clean the polished glass plate with a citric acid aqueous solution containing 5% mass concentration, then blow it dry with an air knife, and irradiate it with light from the bottom with a backlight LED light bar to check its surface quality and observe Whether there are point defects, linear defects, dirty spots and edge burst defects;

[0025] (d) Eliminate unqualified products containing the above-mentioned defects, and then use screen printing technology to print ink on any surface of the qualified glass plate to form lig...

Embodiment 2

[0029] This embodiment provides a large-size light guide plate glass, and its manufacturing method includes the following steps in sequence:

[0030] (a) Cut the original glass sheet with a thickness of 1.5mm into a 75-inch glass plate;

[0031] (b) edging the glass panes to form rounded corners, followed by polishing of the opposing edges thereof;

[0032] (c) Clean the polished glass plate with a citric acid aqueous solution with a mass concentration of 15%, and then blow it dry with an air knife, irradiate it with light from the bottom, check its surface quality, and observe whether there are spots, defects, Poor linearity, dirty spots and edge burst defects;

[0033] (d) Eliminate unqualified products containing the above-mentioned defects, and then use screen printing technology to print ink on any surface of the qualified glass plate to form light-shielding dots, and then conduct grayscale testing to ensure that the light-shielding dots are printed evenly;

[0034] (e)...

Embodiment 3

[0037] This embodiment provides a large-size light guide plate glass, and its manufacturing method includes the following steps in sequence:

[0038] (a) Cut the original glass sheet with a thickness of 5mm into a 70-inch glass plate;

[0039] (b) edging the glass panes to form rounded corners, followed by polishing of the opposing edges thereof;

[0040] (c) Clean the polished glass plate with a citric acid aqueous solution with a mass concentration of 10%, and then blow it dry with an air knife, irradiate it with light from the bottom, check its surface quality, and observe whether there are spots, defects, Poor linearity, dirty spots and edge burst defects;

[0041] (d) Eliminate unqualified products containing the above-mentioned defects, and then use screen printing technology to print ink on any surface of the qualified glass plate to form light-shielding dots (regular density is enough), and then carry out grayscale testing to ensure that the light-shielding dots are p...

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Abstract

The invention relates to a large-dimension light guide plate glass and a manufacturing method thereof. The method successively comprises the following steps: (a), cutting a glass original sheet with a thickness of 1 to 5mm into a glass plate with a dimension of 55 to 75 cun; (b), edging the glass plate, and afterwards, polishing at least one edge portion of the glass plate; (c), performing disc-brush cleaning on the polished glass plate by use of deionized water, then blow-drying the glass plate by use of an air blade, irradiating light from the bottom of the glass plate, examining the surface quality, observing whether a poor point-like defect, a poor linear defect, a spot defect and a broken edge defect exist; (d), rejecting unqualified products comprising the defects, and afterwards, printing printing ink on any one surface of a qualified glass plate to form a shading net point; (e), placing the glass plate printed with the printing ink in a temperature of 120 to 200 DEG C for drying for 10 to 30 minutes; and (f), adhering a reflective film on the surface, which is printed with the net point, of the glass plate, such that internal structure reshaping to a certain degree can be performed on glass while the printing ink maintains dry, and the strength is improved.

Description

technical field [0001] The invention belongs to the field of glass processing, and relates to a light guide plate glass, in particular to a large-size light guide plate glass and a manufacturing method thereof. Background technique [0002] The backlight module is one of the key components of the LCD panel. Its function is to supply sufficient brightness and evenly distributed light source so that it can display images normally. The backlight is a light source located behind the liquid crystal display, and its luminous effect will directly affect the visual effect of the liquid crystal display module. The liquid crystal itself does not emit light, and it displays graphics or characters as a result of its light modulation; it provides the light source of the LCD panel, and is mainly composed of a light source, a light guide plate, an optical diaphragm, and a plastic frame. The existing light guide plate is mainly made of acrylic (acrylic), which has low strength; and after a...

Claims

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Application Information

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IPC IPC(8): G02B6/00C03C17/00
CPCG02B6/0065C03C17/00C03C2218/32C03C2218/119
Inventor 高建维
Owner 锡佛光电(苏州)有限公司
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