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Light guide module for backlight module and manufacturing device thereof

A technology of light guide module and backlight module, which is applied in the direction of light guide, plane/plate light guide, light guide of lighting system, etc. problem, to achieve the effect of thickness and cost reduction, uniform thickness and high light utilization rate

Active Publication Date: 2015-01-28
常州丰盛光电科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the technical problems that the film layers of the light guide module used in the backlight module are not tightly bonded, the light utilization rate is low, the thickness and cost are difficult to reduce, and the thickness of each film layer is not uniform.

Method used

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  • Light guide module for backlight module and manufacturing device thereof
  • Light guide module for backlight module and manufacturing device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 The manufacturing equipment of the light guide module for the backlight module of the present invention

[0021] Three hot pressing rollers are arranged in sequence in the vertical direction, two adjacent hot pressing rollers rotate in opposite directions, the middle hot pressing roller (2) has a serrated or wavy microstructure on the surface, and the other two hot pressing rollers (1, 3) The surface is smooth, and there are a light guide plate extrusion die (4), a diffusion layer unwinding mechanism (5) and an optically transparent film unwinding mechanism (6) on one side of the hot pressing roller group. There is a heating device (7) near the contact point between the optically transparent film conveyed by the optically transparent film unwinding mechanism (6) and the intermediate hot pressing roller (2), which heats the optically transparent film to a viscoelastic state and contacts with the microstructure intermediate hot pressing roller ( 2) Tight fit....

Embodiment 2

[0022] Example 2 The preparation method of the light guide module manufactured by using the equipment in Example 1

[0023] The light guide plate is extruded from the extrusion die (4) and transported to the tangent between the first hot pressing roll (1) and the middle hot pressing roll (2), and the preformed diffusion film is transported to the Close to the light guide plate, the preformed optically transparent film is transported to the other side close to the diffusion layer by the optically transparent film unwinding mechanism (6), and the optically transparent film is squeezed by the middle hot pressing roller (2) with microstructure An optical lens film with a serrated or wavy microstructure surface, a light guide module (8) in which a light guide plate, a diffusion film, and an optical lens film are combined by a first hot pressing roller (1) and an intermediate hot pressing roller (2) ), the light guide module (8) continues to be transported to the tangent between the...

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Abstract

The invention relates to a light guide module for a backlight module and a manufacturing device thereof. The light guide module is composed of an extrusion-formed light guide plate, a diffuser film layer and an optical lens film layer which are tightly adhered to avoid air layers, and the thickness uniformity of every film covering the light guide plate can be within 50 micrometers; the manufacturing device of the light guide module is composed of three hot-press rollers which are sequentially arranged in the vertical direction, every two neighboring hot-press rollers rotate oppositely, the surface of the middle hot-press roller is provided with a sawtooth-shaped or wavy micro structure, and the surfaces of the other two hot-press rollers (1 and 3) are smooth; one side of the hot-press rollers is provided with a light guide plate extrusion die head (4), a diffuser film unreeling mechanism (5) and an optical lens film unreeling mechanism (6). The light guide module manufactured through the manufacturing device can be tight in film adhesion, high in light utilization rate and uniform in film thickness and can effectively reduce the thickness and the cost and form uniform and high-intensity light.

Description

[0001] The present invention is a divisional application of an invention patent with the application number 201110353953.2, the application date is November 10, 2011, and the title is "A light guide module for backlight module and its manufacturing equipment and preparation method". technical field [0002] The invention relates to a light guide module for a backlight module and manufacturing equipment thereof. Background technique [0003] Liquid crystal display panels (LCD panels) have been widely used in monitors, notebook computers, digital cameras, projectors, and other electronic products with growth potential due to their advantages of thinness, light weight, portability, and low radiation. The backlight module is one of the key components of the LCD panel. Its function is to supply sufficient brightness and evenly distributed light sources so that the LCD panel can display images normally. [0004] The backlight module is mainly composed of light source, lampshade, r...

Claims

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Application Information

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IPC IPC(8): G02F1/13357B32B37/06B32B37/10
CPCB32B37/06B32B37/10G02B6/005G02B6/0065
Inventor 葛伟新周文立李济常吴龙平
Owner 常州丰盛光电科技股份有限公司
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