CN103244864A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN103244864A CN103244864A CN2012100308901A CN201210030890A CN103244864A CN 103244864 A CN103244864 A CN 103244864A CN 2012100308901 A CN2012100308901 A CN 2012100308901A CN 201210030890 A CN201210030890 A CN 201210030890A CN 103244864 A CN103244864 A CN 103244864A
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- Prior art keywords
- point
- module backlight
- light
- incidence surface
- pit
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Abstract
The invention provides a backlight module which comprises a light guide plate and a light source module located on one side of the light guide plate. The light guide plate comprises an incident surface and an emergent surface perpendicular to each other. The light source module right faces the incident surface and comprises a plurality of light-emitting parts which are disposed at intervals and which emit light. The incident surface is provided with dot microstructures which scatter the incoming light and which correspond to the light-emitting parts. The incident surface is also provided with dot microstructures which focus the incoming light and which correspond to the position between each two adjacent light-emitting parts.
Description
Technical field
The present invention relates to a kind of module backlight.
Background technology
The light source that existing module backlight generally includes a LGP and is arranged on LGP one side.Described light source has adopted light emitting diode mostly for the consideration of energy-conserving and environment-protective.Yet, the light directive property of sending because of described light emitting diode is stronger, light inlet side at LGP forms a plurality of significantly " bright spot " (hot spot) easily when the light-emitting diodes tube pitch is big, thereby described spot zone can not be used for providing the actual lighting area that has influenced backlight panel backlight.
Summary of the invention
Given this, be necessary to provide a kind of module backlight that reduces the bright spot phenomenon.
A kind of module backlight, it comprises LGP and is positioned at the light source module of LGP one side.Described LGP comprises orthogonal incidence surface and exiting surface.Described light source module faces the incidence surface setting.Described light source module comprises the illuminating part that the interval of a plurality of emission light arranges.Be provided with point-like micro-structural for the scatter incident light line with the corresponding position of illuminating part on the described incidence surface.The corresponding position of part is provided with for the point-like micro-structural of assembling incident ray on the described incidence surface and between two adjacent illuminating parts.
With respect to prior art, module backlight provided by the present invention arranges the micro-structural of scattered beam by the position of the illuminating part of corresponding light source on incidence surface, the position of the non-illuminating part of corresponding light source arranges the micro-structural of converging ray, thus so that the bright spot phenomenon that the incident intensity on the whole incidence surface is tending towards on average avoiding the brightness of the illuminating part corresponding position of incidence surface and light source obviously to cause greater than other positions as far as possible.
Description of drawings
The structural representation of the module backlight that Fig. 1 provides for embodiment of the present invention.
Fig. 2 is the distribution schematic diagram of micro-structural on the incidence surface of LGP among Fig. 1.
Fig. 3 be among Fig. 2 LGP along the cutaway view of III-III line.
The structural representation of the module backlight that Fig. 4 provides for another embodiment of the present invention.
The main element symbol description
| Module backlight | 1 |
| LGP | 10 |
| The |
11 |
| The |
110 |
| |
112 |
| |
120 |
| Exiting |
140 |
| |
121 |
| |
123 |
| Micro-structural | 122 |
| |
124 |
| |
126 |
The following specific embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
The specific embodiment
As depicted in figs. 1 and 2, the module backlight 1 that provides of the embodiment of the present invention light source module 11 that comprises LGP 10 and be positioned at LGP 10 1 sides.This LGP 10 comprises incidence surface 120 and exiting surface 140.In the present embodiment, described incidence surface 120 and 140 vertical linking to each other of exiting surface.Described light source module 11 faces incidence surface 120 and arranges.The light of described light source module 11 emissions enters LGP 10 via described incidence surface 120 and is penetrated by described exiting surface 140 in the LGP 10 inner backs of fully mixing.
In the present embodiment, described LGP 10 also is rectangular flat.The material of described LGP 10 is transparent material, for example: and plexiglass, methacrylic resin, polyacrylic resin, Merlon or polyvinyl resin etc., and adopt jetting formation process to make.
In the present embodiment, described light source module 11 comprises a lamp bar 110 and a plurality of light emitting diode 112 that is arranged on the described lamp bar 110 as illuminating part.Described lamp bar 110 is the elongate lath, and described light emitting diode 112 is arranged on described lamp bar 110 on a side of described incidence surface 120 according to equidistant from distance.
Described incidence surface 120 is provided with a plurality of for the point-like micro-structural 122 of adjusting incident ray intensity.Described micro-structural 122 comprises by incidence surface 120 to the point-like pits 124 of the direction depression of the vertical incidence surface 120 in LGP 10 inboard edges and the point-like projection 126 of outwards being given prominence to by incidence surface 120.Described pit 124 can play the effect of scattered beam, thereby weakens the light intensity that is entered into LGP 10 inside by pit 124 places.The light of the more dark institute of described pit scattering is just more many, and the effect of playing that weakens incident ray is just more obvious.Described protruding 126 can play the effect that is similar to converging ray as the convex lens, thereby can increase the light intensity that is entered into LGP 10 inside by protruding 126 places.The described protruding 126 more high light of assembling are more many, and the effect of the enhancing incident ray that plays is just more obvious.Described micro-structural 122 is arranged according to the 112 residing positions of light emitting diode on the lamp bar 110, the principle of arranging strengthens the incident ray intensity of described incidence surface 120 part between adjacent light emitting diode 112 for the incident ray intensity that reduces described incidence surface 120 and light emitting diode 112 counterparts, thus so that the bright spot phenomenon that the incident intensity on the whole incidence surface 120 is tending towards on average avoiding the brightness of incidence surface 120 and light emitting diode 112 counterparts obviously to cause greater than other parts as far as possible.
As shown in Figure 3, described incidence surface 120 and each light emitting diode 112 corresponding parts are defined as bright area 121.Be provided with described pit 124 in each bright area 121.Corresponding part between described incidence surface 120 and adjacent per two light emitting diodes 112, namely the part between per two bright area 121 is defined as dark areas 123.Be provided with described protruding 126 in each dark areas 123.The degree of depth of described pit 124 is directly proportional with the light intensity that the light emitting diode 112 that the present position can receive sends.The light intensity that the light emitting diode 112 that described protruding 126 height and present position can receive sends is inversely proportional to.The pit 124 of certain position density of arranging is directly proportional with the light intensity that light emitting diode 112 that this position can receive sends on the described incidence surface 120.The projection 126 of certain position light intensity that light emitting diode 112 that density and this position can receive sends of arranging is inversely proportional on the described incidence surface 120.In the present embodiment, the luminous intensity of described light emitting diode 112 is weakened to both sides respectively gradually by core.Accordingly, in each bright area 121, on the described incidence surface 120 with the core of light emitting diode 112 over against pit 124 the darkest, the degree of depth of other pits 124 is reduced to both sides respectively gradually by the darkest pit 124 places.In each dark areas 123, on the described incidence surface 120 and the core between the adjacent light emitting diode 112 over against projection 126 the highest, the height of other projectioies 126 is reduced to both sides respectively gradually by the highest protruding 126 places.The highest and reduce gradually to both sides thus over against the density of arranging of the pit 124 in zone with the core of light emitting diode 112 on described incidence surfaces 120 in each bright area 121.In each dark areas 123, the core between described incidence surface 120 and the adjacent light emitting diode 112 over against the density of arranging of projection 126 the highest and reduce gradually to both sides thus.
As shown in Figure 4, in another embodiment, the extension direction of described pit 124 also is not orthogonal to incidence surface 120, distribute but be divergent shape centered by the luminous component of institute's respective leds 112, thereby the light of being convenient to send at light emitting diode 112 is better dispersed.Described protruding 126 extension direction is pointed to the luminous component center of the most contiguous light emitting diode 112, thereby is convenient to assemble better the light that light emitting diode 112 sends.
Described micro-structural 122 is one-body molded in mould with LGP 10, and does not need secondary operations.Therefore, when mould designs, can distribute to adjust the distribution density of pit 124 degree of depth, projection 126 height and pit 124 and projection 126 according to the luminous intensity of light source, make described LGP 10 play the effect of the light source of average various luminous intensity distributions.Be understandable that described pit 124 and projection 126 concrete shape are unrestricted, can be cylindrical, taper shape or pyramid.In the present embodiment, described pit 124 and projection 126 are cylindrical.
Those skilled in the art will be appreciated that; above embodiment only is that the present invention is described; and be not to be used as limitation of the invention; as long as within connotation scope of the present invention, appropriate change and variation that above embodiment is done all drop within the scope of protection of present invention.
Claims (11)
1. module backlight, it comprises LGP and is positioned at the light source module of LGP one side, described LGP comprises orthogonal incidence surface and exiting surface, described light source module faces the incidence surface setting, described light source module comprises the illuminating part that the interval of a plurality of emission light arranges, be provided with point-like micro-structural for the scatter incident light line with the corresponding position of illuminating part on the described incidence surface, the corresponding position of part is provided with for the point-like micro-structural of assembling incident ray on the described incidence surface and between two adjacent illuminating parts.
2. module backlight as claimed in claim 1, it is characterized in that: described point-like micro-structural for the scatter incident light line is the point-like pit.
3. module backlight as claimed in claim 2 is characterized in that: the shape of described point-like pit is selected from a kind of of cylindrical, taper shape and pyramid.
4. module backlight as claimed in claim 2, it is characterized in that: the degree of depth of the described point-like pit intensity of incident light corresponding with point-like pit present position is directly proportional.
5. module backlight as claimed in claim 4, it is characterized in that: the density of arranging of described point-like pit is directly proportional with the incident ray intensity that point-like pit present position can receive.
6. as the described module backlight of one of claim 1-5, it is characterized in that: described is the point-like projection for the point-like micro-structural of assembling incident ray.
7. module backlight as claimed in claim 6 is characterized in that: the shape of described point-like projection is selected from a kind of of cylindrical, taper shape and pyramid.
8. module backlight as claimed in claim 6 is characterized in that: the intensity of incident light that the height of described point-like projection is corresponding with point-like projection present position is inversely proportional to.
9. module backlight as claimed in claim 8 is characterized in that: the incident ray intensity that the arranging density of described point-like projection and point-like projection present position can receive is inversely proportional to.
10. module backlight as claimed in claim 9, it is characterized in that: described point-like micro-structural and LGP are one-body molded in mould.
11. module backlight as claimed in claim 9 is characterized in that: described light source module comprises a lamp bar, and described illuminating part is light emitting diode, and described light emitting diode is arranged on described lamp bar on a side of incidence surface according to equidistant from distance.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100308901A CN103244864A (en) | 2012-02-13 | 2012-02-13 | Backlight module |
| TW101147940A TW201337412A (en) | 2012-02-13 | 2012-12-17 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100308901A CN103244864A (en) | 2012-02-13 | 2012-02-13 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103244864A true CN103244864A (en) | 2013-08-14 |
Family
ID=48924587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100308901A Pending CN103244864A (en) | 2012-02-13 | 2012-02-13 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103244864A (en) |
| TW (1) | TW201337412A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777549A (en) * | 2015-04-23 | 2015-07-15 | 福州大学 | Light guide strip for liquid crystal display |
| CN105276481A (en) * | 2014-06-03 | 2016-01-27 | 株式会社小糸制作所 | Light emitting device and vehicular lamp |
| WO2016141599A1 (en) * | 2015-03-11 | 2016-09-15 | 深圳市华星光电技术有限公司 | Backlight module and light bar thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1525219A (en) * | 2003-02-28 | 2004-09-01 | 统宝光电股份有限公司 | Improved type backlight module with straightly-down luminous tube structure |
| CN1601353A (en) * | 2003-09-23 | 2005-03-30 | 统宝光电股份有限公司 | Backlight modular of Two-D display |
| JP2007200736A (en) * | 2006-01-27 | 2007-08-09 | Epson Imaging Devices Corp | Lighting system, electrooptical device and electronic equipment |
| CN101097349A (en) * | 2006-06-30 | 2008-01-02 | Lg.菲利浦Lcd株式会社 | Backlight assembly and liquid crystal display device having the same |
| CN201035177Y (en) * | 2007-01-19 | 2008-03-12 | 台湾奈普光电科技股份有限公司 | Improved structure of light conducting plate |
| CN101358710A (en) * | 2007-08-03 | 2009-02-04 | 北京京东方光电科技有限公司 | Back light source device for LED |
| CN201589201U (en) * | 2009-11-06 | 2010-09-22 | 上海向隆电子科技有限公司 | Structure for enhancing or homogenizing brightness of light guide plate |
-
2012
- 2012-02-13 CN CN2012100308901A patent/CN103244864A/en active Pending
- 2012-12-17 TW TW101147940A patent/TW201337412A/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1525219A (en) * | 2003-02-28 | 2004-09-01 | 统宝光电股份有限公司 | Improved type backlight module with straightly-down luminous tube structure |
| CN1601353A (en) * | 2003-09-23 | 2005-03-30 | 统宝光电股份有限公司 | Backlight modular of Two-D display |
| JP2007200736A (en) * | 2006-01-27 | 2007-08-09 | Epson Imaging Devices Corp | Lighting system, electrooptical device and electronic equipment |
| CN101097349A (en) * | 2006-06-30 | 2008-01-02 | Lg.菲利浦Lcd株式会社 | Backlight assembly and liquid crystal display device having the same |
| CN201035177Y (en) * | 2007-01-19 | 2008-03-12 | 台湾奈普光电科技股份有限公司 | Improved structure of light conducting plate |
| CN101358710A (en) * | 2007-08-03 | 2009-02-04 | 北京京东方光电科技有限公司 | Back light source device for LED |
| CN201589201U (en) * | 2009-11-06 | 2010-09-22 | 上海向隆电子科技有限公司 | Structure for enhancing or homogenizing brightness of light guide plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276481A (en) * | 2014-06-03 | 2016-01-27 | 株式会社小糸制作所 | Light emitting device and vehicular lamp |
| WO2016141599A1 (en) * | 2015-03-11 | 2016-09-15 | 深圳市华星光电技术有限公司 | Backlight module and light bar thereof |
| CN104777549A (en) * | 2015-04-23 | 2015-07-15 | 福州大学 | Light guide strip for liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201337412A (en) | 2013-09-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |