CN105372746A - 棱镜结构pmma导光板 - Google Patents

棱镜结构pmma导光板 Download PDF

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Publication number
CN105372746A
CN105372746A CN201510778167.5A CN201510778167A CN105372746A CN 105372746 A CN105372746 A CN 105372746A CN 201510778167 A CN201510778167 A CN 201510778167A CN 105372746 A CN105372746 A CN 105372746A
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CN
China
Prior art keywords
guide plate
light guide
prism structure
pmma
degree
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510778167.5A
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English (en)
Inventor
郭志强
程媛媛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Light Transform Optoelectronics Co Ltd
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Chongqing Light Transform Optoelectronics Co Ltd
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Application filed by Chongqing Light Transform Optoelectronics Co Ltd filed Critical Chongqing Light Transform Optoelectronics Co Ltd
Priority to CN201510778167.5A priority Critical patent/CN105372746A/zh
Publication of CN105372746A publication Critical patent/CN105372746A/zh
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

本发明公开了一种棱镜结构PMMA导光板，包括入光面以及出光面，所述导光板由PMMA塑料制成，所述出光面设置棱镜结构，所述棱镜结构具有若干平行设置的、截面呈弧形的突起，两相邻的突起间形成V型沟槽；所述沟槽的深度D为85-115μm，宽度W为325-395μm，所述突起的R角值为203-227度。本发明出光面亮度高，均匀性及能见度均优异，导光板吸水率低。

Description

棱镜结构PMMA导光板
技术领域
本发明涉及导光板，尤其是涉及棱镜结构PMMA导光板。
背景技术
在提高导光板出光面透光率上，本领域技术人员作了大量研究，例如公开号为CN104416739A(名称为导光板及其制作方法)和CN102661572A(名称为上棱镜导光板及相应的背光模块)的专利。研究发现，目前该类导光板出光面透光率均不够优异。
发明内容
本发明的目的就是为了解决上述问题，提供一种透光率优异的棱镜结构PMMA导光板。
为了实现上述目的，本发明采用如下技术方案：棱镜结构PMMA导光板，包括入光面以及出光面，所述导光板由PMMA塑料制成，所述出光面设置棱镜结构，所述棱镜结构具有若干平行设置的、截面呈弧形的突起，两相邻的突起间形成V型沟槽；
所述沟槽的深度D为85-115μm，宽度W为325-395μm，所述突起的R角值为203-227度。
优选的是，所述沟槽的深度D为110μm，宽度W为380μm，所述突起的R角值为215度。
优选的是，所述突起截面呈半圆形。
优选的是，所述入光面设置由印刷网点制版印刷成的高反射层结构。
与现有技术相比，本发明具有如下有益效果：本发明出光面亮度高，均匀性及能见度均优异，导光板吸水率低。
附图说明
图1为实施例中棱镜结构PMMA导光板局部剖视图。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体图示，进一步阐述本发明。
参见图1，棱镜结构PMMA导光板，包括入光面以及出光面，所述导光板由PMMA塑料制成，所述出光面设置棱镜结构，所述棱镜结构具有若干平行设置的、截面呈弧形的突起1，两相邻的突起间形成V型沟槽。突起为沿着长度方向延伸的结构。
所述沟槽的深度D为85-115μm，宽度W为325-395μm，所述突起的R角值为203-227度。
本实施例中，所述沟槽的深度D为110μm，宽度W为380μm，所述突起的R角值为215度。
宽度W为两相邻突起波峰之间的距离。
本实施例中，所述突起截面呈半圆形。
本实施例中，所述入光面设置由印刷网点制版印刷成的高反射层结构。
本发明出光面亮度高，均匀性及能见度均优异，导光板吸水率低。
以上所述仅为本发明的优选实施方式，本发明的保护范围并不仅限于上述实施方式，凡是属于本发明原理的技术方案均属于本发明的保护范围。对于本领域的技术人员而言，在不脱离本发明的原理的前提下进行的若干改进，这些改进也应视为本发明的保护范围。

Claims (4)

1.棱镜结构PMMA导光板，包括入光面以及出光面，其特征在于，所述导光板由PMMA塑料制成，所述出光面设置棱镜结构，所述棱镜结构具有若干平行设置的、截面呈弧形的突起，两相邻的突起间形成V型沟槽；
所述沟槽的深度D为85-115μm，宽度W为325-395μm，所述突起的R角值为203-227度。
2.根据权利要求1所述的棱镜结构PMMA导光板，其特征在于，所述沟槽的深度D为110μm，宽度W为380μm，所述突起的R角值为215度。
3.根据权利要求1所述的棱镜结构PMMA导光板，其特征在于，所述突起截面呈半圆形。
4.根据权利要求1所述的棱镜结构PMMA导光板，其特征在于，所述入光面设置由印刷网点制版印刷成的高反射层结构。
CN201510778167.5A 2015-11-13 2015-11-13 棱镜结构pmma导光板 Pending CN105372746A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106094095A (zh) * 2016-08-12 2016-11-09 广州创维平面显示科技有限公司 一种背光模组及其液晶显示器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101606020A (zh) * 2006-09-29 2009-12-16 东丽株式会社 面光源和使用其的液晶显示装置
CN101994995A (zh) * 2009-08-21 2011-03-30 喜星电子株式会社 导光板及具备该导光板的背光源装置
KR20110033052A (ko) * 2009-09-23 2011-03-30 신화인터텍 주식회사 프리즘 시트 및 이를 갖는 백라이트 어셈블리
CN102928911A (zh) * 2012-10-26 2013-02-13 京东方科技集团股份有限公司 导光板及其制造方法、背光模组和显示装置
CN203224640U (zh) * 2013-03-22 2013-10-02 重庆翎创福光电科技股份有限公司 一种导光性能优的导光板
CN103471037A (zh) * 2013-09-09 2013-12-25 深圳市华星光电技术有限公司 背光模组以及包括其的液晶显示装置
CN104280819A (zh) * 2013-12-26 2015-01-14 瑞仪光电股份有限公司 一种导光板
CN204345537U (zh) * 2015-01-15 2015-05-20 安徽彩晶光电有限公司 一种led导光板

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101606020A (zh) * 2006-09-29 2009-12-16 东丽株式会社 面光源和使用其的液晶显示装置
CN101994995A (zh) * 2009-08-21 2011-03-30 喜星电子株式会社 导光板及具备该导光板的背光源装置
KR20110033052A (ko) * 2009-09-23 2011-03-30 신화인터텍 주식회사 프리즘 시트 및 이를 갖는 백라이트 어셈블리
CN102928911A (zh) * 2012-10-26 2013-02-13 京东方科技集团股份有限公司 导光板及其制造方法、背光模组和显示装置
CN203224640U (zh) * 2013-03-22 2013-10-02 重庆翎创福光电科技股份有限公司 一种导光性能优的导光板
CN103471037A (zh) * 2013-09-09 2013-12-25 深圳市华星光电技术有限公司 背光模组以及包括其的液晶显示装置
CN104280819A (zh) * 2013-12-26 2015-01-14 瑞仪光电股份有限公司 一种导光板
CN204345537U (zh) * 2015-01-15 2015-05-20 安徽彩晶光电有限公司 一种led导光板

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106094095A (zh) * 2016-08-12 2016-11-09 广州创维平面显示科技有限公司 一种背光模组及其液晶显示器

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