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Silk-screen-printing-free light guide plate online production process and production device

A technology of production process and production equipment, applied in the field of online production process and production equipment of non-screen printing light guide plate, can solve the problems of low production efficiency, complex production process, complex structure, etc., achieve simple manufacturing process, low raw material cost, improve transparency excessive effect

Inactive Publication Date: 2017-05-17
FUJIAN ZHENGDE OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing light guide plate production equipment has a complex structure and complex production process, resulting in low production efficiency

Method used

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  • Silk-screen-printing-free light guide plate online production process and production device
  • Silk-screen-printing-free light guide plate online production process and production device
  • Silk-screen-printing-free light guide plate online production process and production device

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Embodiment Construction

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] Example reference Figure 1-12, On-line production process and production equipment of screen printing-free light guide plate, including dryer 1, dust collector 2, dispensing machine 3, single-screw extruder 4, multi-layer co-extrusion die head 5, multi-roller extruder 6, slow cooling frame 7 , defect detector 8, traction laminating machine 9, trimming traction machine 10, cross-cutting machine 11, manipulator 12, dryer 1 transports the dried raw materials to dust collector 2 for dust removal, and dust collector 2 transports ...

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Abstract

The invention discloses a silk-screen-printing-free light guide plate online production process and production device. During production, an optical granular raw material is prepared by selecting a PMMA, PS, PC, MS, PET or PP material of which the light transmittance is 87-90% and the refractive index is 1.53-1.62; and inorganic silicon or nano barium sulfate is selected as a dispersing agent. The process comprises the following steps: material selection; drying; material supply; hot melting; extrusion calendaring molding; cooling and detection; and film covering, cutting and stacking. By adoption of the silk-screen-printing-free light guide plate online production process and production device provided by the invention, multi-layer optical composite plates of various sizes and materials can be effectively produced; and the production equipment cost and the material requirements are low, the light transmittance and the precision of each finished product are high, and the practical value is very high.

Description

technical field [0001] The invention relates to the technical field of light guide plate production, in particular to an online production process and production equipment for a light guide plate without silk screen printing. 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 to print light-guiding points on the bottom surface of the optical-grade acrylic sheet with UV screen printing technology. The optical grade acrylic sheet is used to absorb the light emitted from the lamp to stay on the surface of the optical grade acrylic sheet. When the light hits each light guide point, the reflected light will spread to all angles, and then destroy the reflection condition by the light guide plate. Front shot. Through light guide points of various densities and sizes, the light guide plate can be made to emit light evenly. The purpose of the reflective s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D11/00B29C47/14B29C43/24B29C43/46B29C48/305
CPCB29C43/24B29C43/46B29C48/30B29C48/305B29C2043/463B29D11/0073
Inventor 刘显平薛木庆
Owner FUJIAN ZHENGDE OPTOELECTRONICS TECH CO LTD
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