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
9 Cites 9 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The existing light guide plate is mainly made of acrylic (acrylic), which has low strength; and after assembly, t...
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Method used

(d) reject the unqualified product that contains described defect, adopt screen printing technology printing ink to form light-shielding dot (conventional density gets final product) subsequently on any surface of qualified glass plate, carry out gray scale test subsequently, ensure Uniform printing of shading dots;
(d) remove the unqualified product that contains described defect, adopt screen printing technology printing ink to form light-shielding dot on any surface of qualified glass plate subsequently, carry out gray scale test subsequently, guarantee that light-shielding dot printing is even, its The intensity of the reflected light is uniform;
(d) remove the unqualified product that contains described defect, adopt screen printing technology printing ink to form light-shielding dot on any surface of qualified glass plate subsequently, carry out gray scale test subsequently, guarantee that the light-shielding dot printing is even;
A kind of manufacture method of large-scale light guide plate glass of the present invention, it comprises the following steps successively: (a) the original glass sheet that thickness is 1 ~ 5mm is cut into the glass plate of 55 ~ 75 inches; (b) to glass (c) Clean the polished glass plate with a disc brush with deionized water, then dry it with an air knife, and irradiate it with light from the bottom to check its surface Quality, observe whether there are defects such as point defects, line defects, dirty spots and edge bursts; (d) reject unqualified products containing the defects, and then print ink on any surface of the qualified glass plate to form light-shielding dots; (e ) Dry the glass plate after ink printing at 120-200°C for 10-30 minutes; (f) Paste and reflective film on the surface of...
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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.

Application Domain

CoatingsOptical light guides

Technology Topic

Printing inkEngineering +3

Examples

  • Experimental program(4)

Example Embodiment

[0020] Example 1
[0021] This embodiment provides a large-size light guide plate glass, and its manufacturing method sequentially includes the following steps:
[0022] (A) Cut the original glass sheet with a thickness of 1mm into 55-inch glass plates;
[0023] (B) Grind the glass plate into rounded corners, and then straighten and polish one side (light-incident surface) to make it free of burst edges and no grinding wheel marks;
[0024] (C) Wash the polished glass plate with a citric acid aqueous solution containing 5% by mass concentration, and then dry it with an air knife, irradiate it with light from the bottom with a backlight LED light bar, check its surface quality, and observe Whether it is a bit bad, bad line, dirty spot and burst edge defect;
[0025] (D) Eliminate the unqualified products containing the defects, and then use screen printing technology to print ink on any surface of the qualified glass plate to form shading dots, and then perform a grayscale test to ensure that the shading dots are printed uniformly, and the reflected Uniform light intensity;
[0026] (E) Dry the glass plate after printing ink at 120°C for 30 minutes;
[0027] (F) Paste the reflective film on the surface of the printed dots on the glass plate, and then conduct an appearance inspection to ensure that there are no bubbles.

Example Embodiment

[0028] Example 2
[0029] This embodiment provides a large-size light guide plate glass, and its manufacturing method sequentially includes the following steps:
[0030] (A) Cut the original glass with a thickness of 1.5mm into 75-inch glass plates;
[0031] (B) Grind the glass plate into rounded corners, and then polish the opposite sides of the glass plate;
[0032] (C) Wash the polished glass plate with an aqueous solution of citric acid with a mass concentration of 15%, and then dry it with an air knife, irradiate it with light from the bottom, check the surface quality, and observe whether it is a bit bad, Poor linearity, dirty spots and edge burst defects;
[0033] (D) Eliminate the unqualified products containing the defects, and then use screen printing technology to print ink on any surface of the qualified glass plate to form shading dots, and then conduct a grayscale test to ensure that the shading dots are printed uniformly;
[0034] (E) Dry the glass plate after printing ink at 200°C for 10 minutes;
[0035] (F) Paste the reflective film on the surface of the printed dots on the glass plate, and then conduct an appearance inspection to ensure that there are no bubbles.

Example Embodiment

[0036] Example 3
[0037] This embodiment provides a large-size light guide plate glass, and its manufacturing method sequentially includes the following steps:
[0038] (A) Cut the original glass sheet with a thickness of 5mm into 70-inch glass plates;
[0039] (B) Grind the glass plate into rounded corners, and then polish the opposite sides of the glass plate;
[0040] (C) Wash the polished glass plate with an aqueous solution of citric acid with a mass concentration of 10%, then blow it dry with an air knife, irradiate it with light from the bottom, check its surface quality, and observe whether it is a bit bad, Poor linearity, dirty spots and edge burst defects;
[0041] (D) Eliminate the unqualified products containing the defects, and then use screen printing technology to print ink on any surface of the qualified glass plate to form shading dots (normal density is sufficient), and then perform grayscale test to ensure that shading dots are printed Evenly
[0042] (E) Dry the glass plate after printing ink at 150°C for 20 minutes;
[0043] (F) Paste the reflective film on the surface of the printed dots on the glass plate, and then conduct an appearance inspection to ensure that there are no bubbles.

PUM

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Description & Claims & Application Information

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