A glass light guide plate and manufacturing method thereof

Abstract

The invention discloses a glass light guide plate and a manufacturing method thereof. The glass light guide plate comprises a glass body, the glass body is provided with a first surface and a second surface opposite to the first surface, the first surface is provided with surface prism fine structures, and the second surface is provided with screen dots. According to the invention, the first surface of the glass light guide plate is provided with the surface prism fine structures, the quality of the liquid crystal module can be improved, the optical brightness of the module is improved, the directivity and gathering performance of light are higher, the bright-dark alternate Hotspot visual effect problem at the light receiving side can be effectively eliminated, the application number of LEDs is reduced, the glass light guide plate is more energy-saving, and the yield rate of products can be effectively increased.

Description

technical field

[0001] The invention relates to the technical field of light guide plates, in particular to a glass light guide plate and a manufacturing method thereof. Background technique

[0002] Compared with traditional light guide plate materials, glass light guide plate has two advantages: first, high strength, Young’s modulus exceeds 68GPA, which can save or reduce the cost of traditional liquid crystal module structural parts; second, excellent weather resistance, The original expansion allowance can be ignored in the module design scheme, and the outer frame can be made narrower. The glass light guide plate in the prior art cannot synchronously form microstructures on its surface when producing large plates, so it is necessary to develop a method for manufacturing a glass light guide plate with surface microstructures. Contents of the invention

[0003] The first object of the present invention is to provide a method for manufacturing a glass light guide plate,...

Examples

Embodiment 1

[0033] A method for manufacturing a glass light guide plate, comprising the steps of:

[0034] Step 1. Provide a glass body. The glass body has a first surface, a second surface opposite to the first surface, and a first side connecting the first surface and the second surface; preferably, the glass body is inorganic high-transmittance glass, which The refractive index is 1.49.

[0035] Step 2: Surface treatment is performed on the glass body; the surface treatment is ultrasonic chemical solvent cleaning, wherein the ultrasonic frequency is 50KHz, the ultrasonic time is 20min, and the ultrasonic temperature is 50°C. In this embodiment, a mixture of hydrofluoric acid is used, and according to the difference in solubility of the salts generated after the reaction between the glass body and the hydrofluoric acid mixture, the crystals remain on the surface of the glass body after the reaction to hinder further reaction between the hydrofluoric acid mixture and the glass body , so...

Embodiment 2

[0055] The difference between this embodiment and Embodiment 1 is only:

[0056] In step 2, the ultrasonic frequency is 60KHz, the ultrasonic time is 25min, and the ultrasonic temperature is 60°C.

[0057] In step 3, the thickness of the coating is 100 μm, the surface prism microstructure is a plurality of zigzag protrusions continuously arranged on the first surface, the height H of the protrusions is 65 μm, and the distance between two adjacent protrusions is P is 150 μm; the included angle C of the zigzag is 68°.

[0058] In the curing step after step three, the distance between the surface of the glass body and the UV lamp tube is 50mm, the baking time is 1min, and the baking energy is 1300MJ / cm 2 .

Embodiment 3

[0060] The difference between this embodiment and Embodiment 1 is only:

[0061] In step 2, the ultrasonic frequency is 70KHz, the ultrasonic time is 30min, and the ultrasonic temperature is 70°C;

[0062] In step 3, the thickness of the coating is 200 μm, the surface prism microstructure is a plurality of arc-shaped protrusions continuously arranged on the first surface, the height H of the protrusions is 100 μm, and the distance between two adjacent protrusions is The pitch P is 300 μm; the angle R of the arc shape is 158°.

[0063] In the curing step after step 3, the distance between the surface of the glass body and the UV lamp tube is 60mm, the baking time is 1.5min, and the baking energy is 1500MJ / cm 2 .

[0064] A glass light guide plate produced according to the above-mentioned production method, comprising a glass body, the glass body has a first surface and a second surface opposite to the first surface, the first surface is provided with a surface prism fine stru...

technical field

[0001] The invention relates to the technical field of light guide plates, in particular to a glass light guide plate and a manufacturing method thereof. Background technique

[0002] Compared with traditional light guide plate materials, glass light guide plate has two advantages: first, high strength, Young’s modulus exceeds 68GPA, which can save or reduce the cost of traditional liquid crystal module structural parts; second, excellent weather resistance, The original expansion allowance can be ignored in the module design scheme, and the outer frame can be made narrower. The glass light guide plate in the prior art cannot synchronously form microstructures on its surface when producing large plates, so it is necessary to develop a method for manufacturing a glass light guide plate with surface microstructures. Contents of the invention

[0003] The first object of the present invention is to provide a method for manufacturing a glass light guide plate,...

Examples

Embodiment 1

[0033] A method for manufacturing a glass light guide plate, comprising the steps of:

[0034] Step 1. Provide a glass body. The glass body has a first surface, a second surface opposite to the first surface, and a first side connecting the first surface and the second surface; preferably, the glass body is inorganic high-transmittance glass, which The refractive index is 1.49.

[0035] Step 2: Surface treatment is performed on the glass body; the surface treatment is ultrasonic chemical solvent cleaning, wherein the ultrasonic frequency is 50KHz, the ultrasonic time is 20min, and the ultrasonic temperature is 50°C. In this embodiment, a mixture of hydrofluoric acid is used, and according to the difference in solubility of the salts generated after the reaction between the glass body and the hydrofluoric acid mixture, the crystals remain on the surface of the glass body after the reaction to hinder further reaction between the hydrofluoric acid mixture and the glass body , so...

Embodiment 2

[0055] The difference between this embodiment and Embodiment 1 is only:

[0056] In step 2, the ultrasonic frequency is 60KHz, the ultrasonic time is 25min, and the ultrasonic temperature is 60°C.

[0057] In step 3, the thickness of the coating is 100 μm, the surface prism microstructure is a plurality of zigzag protrusions continuously arranged on the first surface, the height H of the protrusions is 65 μm, and the distance between two adjacent protrusions is P is 150 μm; the included angle C of the zigzag is 68°.

[0058] In the curing step after step three, the distance between the surface of the glass body and the UV lamp tube is 50mm, the baking time is 1min, and the baking energy is 1300MJ / cm 2 .

Embodiment 3

[0060] The difference between this embodiment and Embodiment 1 is only:

[0061] In step 2, the ultrasonic frequency is 70KHz, the ultrasonic time is 30min, and the ultrasonic temperature is 70°C;

[0062] In step 3, the thickness of the coating is 200 μm, the surface prism microstructure is a plurality of arc-shaped protrusions continuously arranged on the first surface, the height H of the protrusions is 100 μm, and the distance between two adjacent protrusions is The pitch P is 300 μm; the angle R of the arc shape is 158°.

[0063] In the curing step after step 3, the distance between the surface of the glass body and the UV lamp tube is 60mm, the baking time is 1.5min, and the baking energy is 1500MJ / cm 2 .

[0064] A glass light guide plate produced according to the above-mentioned production method, comprising a glass body, the glass body has a first surface and a second surface opposite to the first surface, the first surface is provided with a surface prism fine stru...

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