TWI564604B - 導光板 - Google Patents

導光板 Download PDF

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Publication number
TWI564604B
TWI564604B TW101147097A TW101147097A TWI564604B TW I564604 B TWI564604 B TW I564604B TW 101147097 A TW101147097 A TW 101147097A TW 101147097 A TW101147097 A TW 101147097A TW I564604 B TWI564604 B TW I564604B
Authority
TW
Taiwan
Prior art keywords
light
microstructures
guide plate
incident surface
light guide
Prior art date
Application number
TW101147097A
Other languages
English (en)
Other versions
TW201423176A (zh
Inventor
陳柏洲
Original Assignee
鴻海精密工業股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 鴻海精密工業股份有限公司 filed Critical 鴻海精密工業股份有限公司
Priority to TW101147097A priority Critical patent/TWI564604B/zh
Priority to US13/867,109 priority patent/US20140169030A1/en
Publication of TW201423176A publication Critical patent/TW201423176A/zh
Application granted granted Critical
Publication of TWI564604B publication Critical patent/TWI564604B/zh

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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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Description

導光板
本發明涉及一種導光板，特別涉及一種不同區塊具有不同出光能力的導光板。
圖1為傳統導光板結構示意圖。傳統導光板出光面上設置的多個微結構200為相互平行的呈週期性分佈的直條狀結構，因此，傳統導光板出光面上各個區塊的出光能力相同。但在某些情況下有必要提供一種不同區塊的出光能力不同的導光板。
有鑒於此，本發明提供一種不同區塊具有不同出光能力的導光板。
該導光板包括入光面及與該入光面相鄰的出光面，該出光面上設置有多個直條狀微結構，該多個直條狀微結構相互平行，相鄰兩個直條狀微結構的間距相同，且每一直條狀微結構沿垂直該入光面的方向延伸，該多個微結構在該出光面鄰近該入光面的混光區域內呈非週期性分佈且相鄰兩個直條狀微結構長短不一，該多個微結構在該出光面鄰近該入光面的非混光區域內呈週期性分佈。
在本發明中，因多個微結構在混光區域內呈非週期性分佈，從而導致出光面上不同區塊具有不同的出光能力。
100‧‧‧導光板
10‧‧‧入光面
20‧‧‧出光面
30‧‧‧微結構
40‧‧‧光源
圖1為傳統的導光板的結構示意圖。
圖2為本實施方式中的導光板的結構示意圖。
請參考圖2，本實施方式中的導光板100包括入光面10、出光面20及設置在出光面20上的多個微結構30。入光面10為該導光板100的一側壁，出光面20為該導光板100的上表面。光源40設置在該導光板100的側壁上，光源40產生的光從該入光面10射入該導光板100。光源40為發光二極體。出光面20上鄰近入光面10的區域通常稱為混光區域，光源40提供的光線進入該導光板100的側壁後需先在混光區域進行混光。
多個微結構30相互平行，相鄰兩個微結構30的間距相同，且沿垂直入光面10的方向延伸。在本實施方式中，多個微結構30在混光區域內呈非週期性分佈。具體為多個微結構30在鄰近光源40的位置呈圓弧狀分佈。當然，在其他實施方式中，多個微結構30在鄰近光源40的位置可呈其他形狀分佈，例如呈等邊三角形分佈。
在本實施方式中，因多個微結構30在混光區域內呈非週期性分佈，從而導致出光面20上不同區塊具有不同的出光能力。
100‧‧‧導光板
10‧‧‧入光面
20‧‧‧出光面
30‧‧‧微結構
40‧‧‧光源

Claims (3)

  1. 一種導光板，該導光板包括入光面及與該入光面相鄰的出光面，該出光面上設置有多個直條狀微結構，該多個直條狀微結構相互平行，相鄰兩個直條狀微結構的間距相同，且每一直條狀微結構沿垂直該入光面的方向延伸，其改良在於，該多個微結構在該出光面鄰近該入光面的混光區域內呈非週期性分佈且相鄰兩個直條狀微結構長短不一，該多個微結構在該出光面鄰近該入光面的非混光區域內呈週期性分佈。
  2. 如申請專利範圍第1項所述的導光板，其中，該多個微結構在鄰近設置在該入光面上的光源的位置呈圓弧狀分佈。
  3. 如申請專利範圍第1項所述的導光板，其中，該多個微結構在鄰近設置在該入光面上的光源的位置呈等邊三角形分佈。
TW101147097A 2012-12-13 2012-12-13 導光板 TWI564604B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW101147097A TWI564604B (zh) 2012-12-13 2012-12-13 導光板
US13/867,109 US20140169030A1 (en) 2012-12-13 2013-04-21 Light guide plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW101147097A TWI564604B (zh) 2012-12-13 2012-12-13 導光板

Publications (2)

Publication Number Publication Date
TW201423176A TW201423176A (zh) 2014-06-16
TWI564604B true TWI564604B (zh) 2017-01-01

Family

ID=50930687

Family Applications (1)

Application Number Title Priority Date Filing Date
TW101147097A TWI564604B (zh) 2012-12-13 2012-12-13 導光板

Country Status (2)

Country Link
US (1) US20140169030A1 (zh)
TW (1) TWI564604B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340564A (zh) * 2017-09-06 2017-11-10 深圳市超显科技有限公司 变量线条结构导光板及光学组件

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI283774B (en) * 2003-08-08 2007-07-11 Hon Hai Prec Ind Co Ltd Backlight module and light guide plate used therein
TW201007232A (en) * 2008-08-01 2010-02-16 Hon Hai Prec Ind Co Ltd Light guide plate and backlight module using the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI378300B (en) * 2008-11-25 2012-12-01 Au Optronics Corp Light guide plate and backlight module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI283774B (en) * 2003-08-08 2007-07-11 Hon Hai Prec Ind Co Ltd Backlight module and light guide plate used therein
TW201007232A (en) * 2008-08-01 2010-02-16 Hon Hai Prec Ind Co Ltd Light guide plate and backlight module using the same

Also Published As

Publication number Publication date
TW201423176A (zh) 2014-06-16
US20140169030A1 (en) 2014-06-19

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