Light guide plate and preparation method thereof

A light guide plate and substrate technology, applied in the field of light guide plate, can solve the problems of light guide plate material and structure singleness, inability to scatter light uniformly, short service life, etc., to achieve improved thermal stability, improved scattering efficiency, and improved corrosion resistance Effect

Inactive Publication Date: 2019-09-20
广州希恩朋克光电产品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing light guide plate has a single raw material and structure, poor stability, short service life, easy aging, low scat...

Method used

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  • Light guide plate and preparation method thereof
  • Light guide plate and preparation method thereof
  • Light guide plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figure 1-2 As shown, a light guide plate includes a substrate 1, and a raised portion 2 is respectively provided on both sides of the substrate 1, and the raised portion 2 is integrally formed with the substrate 1, and one side of the raised portion 2 is chamfered. Setting, the chamfering position of the raised portion 2 is provided with a U-shaped mounting hole 3, and the bottom of the substrate 1 is rectangularly arranged with grooves 4, and the cross section of the groove 4 is arranged in a semicircle, so The bottom of the substrate 1 is provided with a PVC glue layer 5 , and the surface of the PVC glue layer 5 is covered with a polymethyl methacrylate particle layer 6 .

[0027] The particle size of the particles in the polymethyl methacrylate particle layer 6 is 0.2-1.2 mm.

[0028] The roughness Ra of the upper surface of the substrate 1 is less than 0.1um.

[0029] The substrate is made of the following materials according to the ratio of parts by mass...

Embodiment 2

[0041] Such as Figure 1-2 As shown, a light guide plate includes a substrate 1, and a raised portion 2 is respectively provided on both sides of the substrate 1, and the raised portion 2 is integrally formed with the substrate 1, and one side of the raised portion 2 is chamfered. Setting, the chamfering position of the raised portion 2 is provided with a U-shaped mounting hole 3, and the bottom of the substrate 1 is rectangularly arranged with grooves 4, and the cross section of the groove 4 is arranged in a semicircle, so The bottom of the substrate 1 is provided with a PVC glue layer 5 , and the surface of the PVC glue layer 5 is covered with a polymethyl methacrylate particle layer 6 .

[0042] The particle size of the particles in the polymethyl methacrylate particle layer 6 is 0.2-1.2 mm.

[0043] The roughness Ra of the upper surface of the substrate 1 is less than 0.1um.

[0044] The substrate is made of the following materials according to the ratio of parts by mass...

Embodiment 3

[0056] Such as Figure 1-2 As shown, a light guide plate includes a substrate 1, and a raised portion 2 is respectively provided on both sides of the substrate 1, and the raised portion 2 is integrally formed with the substrate 1, and one side of the raised portion 2 is chamfered. Setting, the chamfering position of the raised portion 2 is provided with a U-shaped mounting hole 3, and the bottom of the substrate 1 is rectangularly arranged with grooves 4, and the cross section of the groove 4 is arranged in a semicircle, so The bottom of the substrate 1 is provided with a PVC glue layer 5 , and the surface of the PVC glue layer 5 is covered with a polymethyl methacrylate particle layer 6 .

[0057] The particle size of the particles in the polymethyl methacrylate particle layer 6 is 0.2-1.2 mm.

[0058] The roughness Ra of the upper surface of the substrate 1 is less than 0.1um.

[0059] The substrate is made of the following materials according to the ratio of parts by mass...

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Abstract

The invention provides a light guide plate. The light guide plate comprises a substrate, protruding parts are respectively arranged at the upper portions of the two sides of the substrate, the protruding parts and the substrate are integrally formed, one side of each protruding part is arranged in a chamfer angle mode, U-shaped mounting holes are formed in the chamfer angle positions of the protruding parts, grooves are distributed in a rectangular array mode at the bottom of the substrate, the cross section of each groove is in a semicircular mode, a PVC (polyvinyl chloride) adhesive layer is arranged at the bottom of the substrate, and a polymethyl methacrylate granular layer covers the surface of the PVC adhesive layer. The light guide plate is good in material stability, and can enable the light passing rate to be high, improves the scattering rate of light, and guarantees that the light is uniformly distributed after penetrating the light guide plate.

Description

technical field [0001] The technical field of the present invention and a light guide plate, in particular, relates to a light guide plate with good scattering effect. Background technique [0002] The light guide plate is made of optical-grade acrylic / PC sheet, and then high-tech materials with high reflectivity and non-absorbing light are used. Laser engraving, V-shaped cross grid engraving, and UV screen printing technology are used on the bottom surface of the optical-grade acrylic sheet Print light guide dots. The optical-grade acrylic plate is used to absorb the light emitted from the lamp to stay on the surface of the optical-grade acrylic plate. When the light hits each light guide point, the reflected light will spread to all angles, and then destroy the reflection condition and be emitted from the front of the light guide plate. [0003] The existing design principle of the light guide plate is derived from the liquid crystal display screen of the notebook compu...

Claims

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Application Information

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IPC IPC(8): G02B6/00
CPCG02B6/004G02B6/0043G02B6/0065
Inventor 何友杰
Owner 广州希恩朋克光电产品股份有限公司
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