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Light guide plate, its manufacturing method and upper main core for forming light guide plate

A light guide plate and core technology, applied in the field of light guide plates, can solve problems such as light leakage

Inactive Publication Date: 2008-09-24
WOOYOUNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the light concentrated on the upper and lower edge portions 17 and 19 of the light receiving surface 5 is more than that on other portions, this structure using the rough pattern 15 causes a light leakage problem.

Method used

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  • Light guide plate, its manufacturing method and upper main core for forming light guide plate
  • Light guide plate, its manufacturing method and upper main core for forming light guide plate
  • Light guide plate, its manufacturing method and upper main core for forming light guide plate

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Embodiment Construction

[0060] Now, the present invention will be described more fully with reference to the accompanying drawings showing exemplary embodiments of the present invention. However, the present invention can be embodied in many different forms, and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the disclosed content is detailed and complete, and will be fully presented. Those skilled in the art convey the concept of the present invention.

[0061] The present invention proposes an upper main core for molding a light guide plate of a backlight unit, a method of manufacturing the light guide plate by using the upper main core, and a backlight unit manufactured by the method.

[0062] image 3 It is a flowchart illustrating the manufacturing process of the light guide plate of the backlight unit according to the first embodiment of the present invention.

[0063] Refer to image 3 , The manufacturing process include...

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Abstract

The invention provides a light guide plate for a backlight unit; specifically provides an upper main core for forming an emission surface of a light guide plate for a backlight; and to provide a method for manufacturing a light guide plate by using it. This light guide plate for a backlight unit is provided with the emission surface for emitting light, a bottom surface located on the side opposite to the emission surface, and a light-entering surface located between one end in the longitudinal direction of the emission surface and one end in the longitudinal direction of the bottom surface for receiving light radiated from a light source of the backlight unit; and is characterized by that a diffusion pattern comprising a first diagonal line pattern and a second diagonal line pattern formed at predetermined angles in directions opposite to each other with respect to the longitudinal direction is formed on the emission surface.

Description

[0001] This application is a divisional application for the invention of "light guide plate and its manufacturing method and upper main core used for molding the light guide plate". The original application date was October 19, 2005, and the application number was 200510112875.1. Technical field [0002] The present invention relates to a light guide plate for a backlight unit, and more specifically, the present invention relates to an upper main core for molding a light exit surface of the light guide plate, and an upper main core The method of manufacturing the light guide plate can provide uniform brightness distribution in the entire area of ​​the corresponding display panel. Background technique [0003] This patent application claims the rights of Korean patent application No. 10-2004-0083539 filed on September 19, 2004 at the Korean Intellectual Property Office and Korean patent application No. 10-2005-0013164 filed on February 17, 2005, and The entire disclosure herein is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V8/00G02F1/133
CPCG02B6/0038G02F1/133524G02F1/133606
Inventor 金大岘孔成铉
Owner WOOYOUNG