CN101561101A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN101561101A CN101561101A CNA2009101414431A CN200910141443A CN101561101A CN 101561101 A CN101561101 A CN 101561101A CN A2009101414431 A CNA2009101414431 A CN A2009101414431A CN 200910141443 A CN200910141443 A CN 200910141443A CN 101561101 A CN101561101 A CN 101561101A
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- frame
- plate
- module backlight
- lgp
- roof
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Abstract
The invention discloses a backlight module which comprises a fixing frame body, a reflective plate, a light guide plate, a light-emitting diode array light source and at least one optical film. The fixing frame body is provided with a bottom plate, at least one frame and a loading space. At least one fixing plate which externally bends in the direction far away from the loading space and horizontally extends is formed on at least one frame of the fixing frame and a locking and fixing hole is formed on the fixing plate. The reflective plate is arranged on the bottom plate of the fixing frame body; the light guide plate is arranged above the reflective plate; the light-emitting diode array light source is arranged at one light incident side of the light guide plate; at least one optical film is arranged above the light guide plate; at least one frame is provided with a side wall which is perpendicular to the bottom plate and a top wall which is perpendicular to the side wall, and the top wall perpendicularly bends from the side wall and horizontally extends in the direction far away from the loading space; and the fixing plate is arranged on the edge of the top wall and horizontally extends in the direction far away from the loading space from the edge of the top wall.
Description
[technical field]
The invention relates to a kind of module backlight, particularly relevant for a kind of slimming module backlight.
[background technology]
Module backlight (Backlight Module) is applied on the LCD (LCD), and module backlight is arranged at the below of display panels (LCD Panel), in order to the light source as display panels.Existing module backlight is mainly assembled by light emitting source (for example, cold cathode fluorescent tube, hot cathode fluorescent tube, light emitting diode), reflecting plate, LGP, diffusion sheet, prismatic lens and solid framework etc.After the light that is sent by light emitting source enters LGP; to be scatter by LGP and form comparatively uniform surface light source; then in order to increase the service efficiency of light, diffusion sheet and prismatic lens then are that fixed frame is to be used for fixing and to protect these members in order to the raising light-source brightness and the uniformity to reflecting plate.
In the prior art, in order to reduce the thickness of module backlight, the making material of fixed frame replaces original plastic material gradually with metal material, usually the side at the fixed frame (can be called as the back iron frame again) of metal material all forms a plurality of stators, all be formed with a locking hole on each stator, so just can module backlight be fixed on the LCD by the mode of screw locking.
Include four frames 901,902,903,904 and a base plate 905 by Fig. 1 to existing back iron frame 90 shown in Figure 3.These four frames 901,902,903,904 are called first frame 901, second frame 902, the 3rd frame 903 and the 4th frame 904 perpendicular to this base plate 905, are surrounded by these four frames 901,902,903,904 and form a bearing space 900.On first frame 901, second frame 902 and the 3rd frame 903, respectively be formed with two and outwards bend and horizontally extending stator 906, all be formed with a locking hole 907 on the stator 906.First frame 901 is bent into the U type, thus make the frame 901 of winning have one perpendicular to the sidewall 9010 of base plate 905 and from these sidewall 9010 vertical bendings and towards bearing space 900 horizontally extending roofs 9012.The stator 906 that is positioned on this U type frame (i.e. first frame 901) is drawings on the roof 9012 of first frame 901, and extends towards the direction bending away from bearing space 900, then is formed with corresponding breach 9014 on roof 9012.
Please refer to the internal structure schematic diagram of module 9 existing backlight shown in Figure 4, wherein this module 9 backlight is the internals that utilize existing back iron frame shown in Figure 3 90 fixing modules 9 backlight.Existing module 9 backlight includes back iron frame 90, reflecting plate 92, LGP 94, light emitting diode matrix light source 96, and a plurality of optical thin film 98.Reflecting plate 92 is arranged on the base plate 905 of back iron frame 90.LGP 94 is positioned at the top of reflecting plate 92.Light emitting diode matrix light source 96 is disposed at the side of LGP 94, and is positioned at the inboard of first frame 901 of back iron frame 90.Light emitting diode matrix light source 96 includes several light emitting diodes 960 and a circuit board 962.Optical thin film 98 is positioned at the top of LGP 94.
Owing on first frame 901, be formed with two outwards stators 906 (the thin portion structure of one of them stator 906 as shown in Figures 3 and 4) of bending, so on the roof 9012 of first frame 901, will be formed with two breach 9014 (the thin portion structure of one of them breach 9014 as shown in Figures 3 and 4), when LGP 94 is installed on the back iron frame 90, LGP 94 just can not contact with the roof 9012 of first frame 901 at breach 9014 places, but contacts with air.But the phenomenon of the brightness irregularities that contact interface difference can cause, for solving this problem, in the prior art, need be at increase by one reflector plate 99 between the roof 9012 of first frame 901 and the LGP 94, as shown in Figure 4.But in actual production, this settling mode can cause yield to descend, and makes module 9 costs backlight rise.
In addition, can learn, be significantly less than section bending resistance by all the other positions on first frame 901 shown in Fig. 2 B by the section bending resistance of stator 906 positions on first frame 901 shown in Fig. 2 A from the section structure shown in Fig. 2 A and Fig. 2 B.In other words, on first frame 901 of existing back iron frame 90, have fault of construction, on first frame 901 structural strength of stator 906 positions obviously a little less than, can reduce the structural strength of entire aphototropism mould 9 like this, and more likely cause the quality of whole LCD bad, for example might occur that flexible PCB (FPC) on the display panels is peeled off and problem such as display panels fragmentation.
[summary of the invention]
Main purpose of the present invention is to provide a kind of module backlight, has slimming, even, the even brightness characteristics of structural strength.
Other purpose of the present invention and advantage can be further understood from the disclosed technical characterictic of the present invention.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of module backlight includes: a fixed frame, a reflecting plate, a LGP, a light emitting diode matrix light source, and at least one optical thin film.This fixed frame has a base plate, perpendicular at least one frame of this base plate, an and bearing space that is formed at this base plate top.On this at least one frame of this fixed frame, be formed with direction outside bending and the horizontally extending stator of at least one court, on this stator, be formed with a locking hole away from this bearing space.This reflecting plate is arranged on this base plate of this fixed frame.This LGP is positioned at the top of this reflecting plate.This light emitting diode matrix light source is disposed at a light incident side of this LGP.This at least one optical thin film is positioned at the top of this LGP.This at least one frame has a sidewall and the roof perpendicular to this sidewall perpendicular to this base plate, and this roof is from the vertical bending of this sidewall and towards the direction horizontal-extending away from this bearing space, described stator is the edge that is positioned at this roof, and certainly the edge of this roof towards away from the direction horizontal-extending of this bearing space.
On this at least one frame of said fixing framework, also dispose a stiffening plate, and this stiffening plate abuts in fixedly on the roof of this at least one frame.The area of this stiffening plate is greater than the area of the roof of this at least one frame.This stiffening plate is towards this bearing space horizontal-extending, and contacts with the upper surface of this LGP.
The said fixing framework includes four frames, and these four frames interconnect and perpendicular to this base plate, are called first frame, second frame, the 3rd frame and the 4th frame, and this bearing space is to be surrounded by these four frames to form.On first frame, second frame and the 3rd frame, respectively be formed with two and outwards bend and horizontally extending stator, all be formed with a locking hole on each stator.
Described at least one frame is meant this first frame, and this first frame is Z-shaped.
Compared to prior art, the present invention's module backlight can promote the warping resistance intensity of fixed frame by configuration one stiffening plate at least one frame of fixed frame, thereby promote the overall construction intensity of module backlight, and because this stiffening plate is the upper surface that evenly is covered in an avris of LGP, thereby avoid LGP at this light inlet side leakage light, and further improve the problem of brightness irregularities.Therefore the present invention's module backlight can provide a uniform brightness to display panels.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
[description of drawings]
Fig. 1 is the planar structure schematic diagram of existing back iron frame.
Fig. 2 A is the back iron frame section structure schematic diagram after the A-A line is cut open in Fig. 1.
Fig. 2 B is the back iron frame section structure schematic diagram after the B-B line is cut open in Fig. 1.
Fig. 3 is the enlarged diagram of the part stereochemical structure of existing back iron frame.
Fig. 4 is the internal structure schematic diagram of existing module backlight, and wherein this module backlight is to utilize existing back iron frame shown in Figure 3 to fix its internals.
Fig. 5 is the wherein planar structure schematic diagram of the fixed frame of an embodiment of the present invention.
Fig. 6 A is the fixed frame section structure schematic diagram after the A-A line is cut open in Fig. 5.
Fig. 6 B is the fixed frame section structure schematic diagram after the B-B line is cut open in Fig. 5.
Fig. 7 is the wherein enlarged diagram of the part stereochemical structure of the fixed frame of an embodiment of the present invention.
Fig. 8 is the wherein internal structure schematic diagram of the module backlight of an embodiment of the present invention, and wherein this module backlight is to utilize fixed frame shown in Figure 7 to fix its internals.
[specific embodiment]
Below the explanation of each embodiment be with reference to additional graphic, can be in order to illustration the present invention in order to the specific embodiment of implementing.The direction term that the present invention mentioned, for example " on ", D score, " preceding ", " back ", " left side ", " right side ", " interior ", " outward ", " side " etc., only be direction with reference to annexed drawings.Therefore, the direction term of use is in order to explanation and understands the present invention, but not in order to restriction the present invention.
In following examples, in different figure, same section is to represent with same numeral.
Please refer to the wherein structural representation of the fixed frame 10 of an embodiment of Fig. 5 the present invention extremely shown in Figure 7, wherein Fig. 5 is the wherein planar structure schematic diagram of the fixed frame 10 of an embodiment of the present invention, Fig. 6 A and Fig. 6 B are the fixed frame 10 section structure schematic diagrames after A-A line and B-B line are cut open in Fig. 5 respectively, and Fig. 7 is the wherein enlarged diagram of the part stereochemical structure of the fixed frame 10 of an embodiment of the present invention.
By Fig. 5 to the present invention shown in Figure 7 wherein the fixed frame 10 of an embodiment include a base plate " and at least one frame 12; above base plate 11, be formed with a bearing space 100; on this at least one frame 12, be formed with at least one court away from the direction of this bearing space 100 outwards bending and horizontally extending stator 13; be formed with a locking hole 130 on the stator 13; from Fig. 6 A to Fig. 7 as can be known, this at least one frame 12 of the present invention is Z-shaped.In the present embodiment, fixed frame 10 includes four frames 14,15,16,17, these four frames 14,15,16,17 interconnect and perpendicular to this base plate 11, be called first frame 14, second frame 15, the 3rd frame 16 and the 4th frame 17, bearing space 100 is to be surrounded by these four frames 14,15,16,17 to form.Respectively be formed with two outwards bending and horizontally extending stators 13 on first frame 14, second frame 15 and the 3rd frame 16, on stator 13, all be formed with a locking hole 130.
Below be that example is made detailed description to the structure of this at least one frame 12 of the present invention just with first frame 14.
Please refer to Fig. 5 to shown in Figure 7, the difference of the existing back iron frame 90 that fixed frame 10 of the present invention and Fig. 1 are extremely shown in Figure 3 is: first frame 14 of fixed frame 10 of the present invention (i.e. this at least one frame 12) is to be bent into the Z type, thereby make the frame of winning have a sidewall 140 and the roof 142 perpendicular to this sidewall 140 perpendicular to base plate 11, and this roof 142 is from these sidewall 140 vertical bendings and towards the direction horizontal-extending away from bearing space 100.Two stators 13 that are positioned on first frame are the edges that are positioned at this roof 142, and certainly the edge of this roof 142 towards away from the direction horizontal-extending of bearing space 100.
Please refer to Fig. 5 to shown in Figure 7, wherein also dispose a stiffening plate 18 on first frame 14 of an embodiment in the present invention, the area of stiffening plate 18 is greater than roof 142 areas of first frame 14, this stiffening plate 18 can fixedly abut on the roof 142 of this first frame 14, and towards this bearing space 100 horizontal-extendings one segment distance.For example can the lower surface of stiffening plate 18 be pasted on the upper surface of the roof 142 of first frame 14 by bonding mode, and since the area of stiffening plate 18 greater than roof 142 areas of first frame 14, so when the lower surface of stiffening plate 18 is pasted on the upper surface of roof 142 of first frame 14, stiffening plate 18 will stretch into bearing space 100, thereby can contact with the LGP 30 of module 1 backlight, so that the effect of shading to be provided, make that the brightness of module 1 backlight is even.The present invention can be so that first frame of fixed frame 10 has uniform structural strength by this structure setting, for example can learn from the section structure shown in Fig. 6 A and Fig. 6 B, by the section bending resistance of cutting open along the A-A line shown in Fig. 6 A basically with identical by the section bending resistance of cutting open along the B-B line shown in Fig. 6 B.
Please refer to the wherein internal structure schematic diagram of the module backlight 1 of an embodiment of the present invention shown in Figure 8, wherein this module 1 backlight is to utilize fixed frame shown in Figure 7 10 to fix its internals.The present invention wherein module backlight 1 of an embodiment includes fixed frame 10, reflecting plate 20, LGP 30, light emitting diode matrix light source 40, and at least one optical thin film 50.Wherein reflecting plate 20, LGP 30, light emitting diode matrix light source 40 and at least one optical thin film 50 all are placed in the bearing space 100 (label 100 can referring to shown in Fig. 5) of this fixed frame 10.In detail, reflecting plate 20 is arranged on the base plate 11 of fixed frame 10; LGP 30 is positioned at the top of reflecting plate 20; Light emitting diode matrix light source 40 is disposed at a light incident side of LGP 30, and is positioned at the inboard of first frame 14 of fixed frame 10, and light emitting diode matrix light source 40 includes several light emitting diodes 42 and a circuit board 44; Optical thin film 50 is positioned at the top of LGP 30.
Please refer to shown in Figure 8, owing on first frame 14, dispose stiffening plate 18, this stiffening plate 18 stretches into bearing space 100 (label 100 can referring to shown in Fig. 5), and evenly cover and an avris of contact LGP 30, thereby avoid occurring the discontinuous problem of LGP 30 contact-making surfaces in the prior art.
Generally, the present invention's module 1 backlight is by going up the warping resistance intensity that configuration one stiffening plate 18 can promote fixed frame 10 at least one frame 12 (as first frame 14) of fixed frame 10, thereby promote the overall construction intensity of module 1 backlight, and because this stiffening plate 18 is the upper surfaces that evenly are covered in an avris of LGP 30, thereby avoid LGP 30 light leaks, and further improve the problem of brightness irregularities.Therefore, the present invention's module 1 backlight can provide a uniform brightness to display panels.
Claims (9)
1. module backlight, include: a fixed frame, a reflecting plate, a LGP, a light emitting diode matrix light source, and at least one optical thin film, wherein this fixed frame have a base plate, perpendicular at least one frame of this base plate, an and bearing space that is formed at this base plate top; On this at least one frame of this fixed frame, be formed with direction outside bending and the horizontally extending stator of at least one court, on this stator, be formed with a locking hole away from this bearing space; This reflecting plate is arranged on this base plate of this fixed frame; This LGP is positioned at the top of this reflecting plate; This light emitting diode matrix light source is disposed at a light incident side of this LGP; This at least one optical thin film is positioned at the top of this LGP; It is characterized in that: this at least one frame has a sidewall and the roof perpendicular to this sidewall perpendicular to this base plate, and this roof is from the vertical bending of this sidewall and towards the direction horizontal-extending away from this bearing space, described stator is the edge that is positioned at this roof, and certainly the edge of this roof towards away from the direction horizontal-extending of this bearing space.
2. module backlight as claimed in claim 1 is characterized in that: also dispose a stiffening plate on this at least one frame of this fixed frame, and this stiffening plate abuts in fixedly on the roof of this at least one frame.
3. module backlight as claimed in claim 2 is characterized in that: the area of this stiffening plate is greater than the area of the roof of this at least one frame.
4. module backlight as claimed in claim 3 is characterized in that: this stiffening plate is towards this bearing space horizontal-extending, and contacts with the upper surface of this LGP.
5. module backlight as claimed in claim 1, it is characterized in that: this fixed frame includes four frames, these four frames interconnect and perpendicular to this base plate, are called first frame, second frame, the 3rd frame and the 4th frame, and this bearing space is to be surrounded by these four frames to form.
6. module backlight as claimed in claim 5 is characterized in that: respectively be formed with two and outwards bend and horizontally extending stator on first frame, second frame and the 3rd frame, all be formed with a locking hole on each stator.
7. module backlight as claimed in claim 6 is characterized in that: this at least one frame is meant this first frame.
8. module backlight as claimed in claim 7 is characterized in that: this first frame is Z-shaped.
9. module backlight as claimed in claim 1 is characterized in that: this light emitting diode matrix light source package contains several light emitting diodes and a circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101414431A CN101561101A (en) | 2009-05-12 | 2009-05-12 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101414431A CN101561101A (en) | 2009-05-12 | 2009-05-12 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101561101A true CN101561101A (en) | 2009-10-21 |
Family
ID=41220016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101414431A Pending CN101561101A (en) | 2009-05-12 | 2009-05-12 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101561101A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023382A1 (en) * | 2011-08-18 | 2013-02-21 | 深圳市华星光电技术有限公司 | Light guide plate positioning piece and backlight module comprising same |
| CN103002702A (en) * | 2012-09-04 | 2013-03-27 | 友达光电股份有限公司 | Support and frame with support |
| CN103076692A (en) * | 2011-10-26 | 2013-05-01 | 三星电子株式会社 | Liquid crystal display and method of manufacturing a chassis to contain a light assembly |
| CN103148404A (en) * | 2012-11-08 | 2013-06-12 | 友达光电股份有限公司 | Display device and backlight module thereof |
| US8696189B2 (en) | 2011-08-18 | 2014-04-15 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Light-guild-plate positioning sheet and corresponding backlight module |
| CN103791320A (en) * | 2013-08-26 | 2014-05-14 | 南京中电熊猫液晶显示科技有限公司 | LED (light emitting diode) backlight module |
| CN103807809A (en) * | 2013-11-12 | 2014-05-21 | 友达光电股份有限公司 | Backlight module and display device |
| CN103823319A (en) * | 2014-03-10 | 2014-05-28 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN103955083A (en) * | 2014-01-17 | 2014-07-30 | 友达光电股份有限公司 | Display module support and display module using same |
| CN110491284A (en) * | 2019-09-10 | 2019-11-22 | 京东方科技集团股份有限公司 | Backlight frame, backlight module and display module |
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2009
- 2009-05-12 CN CNA2009101414431A patent/CN101561101A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023382A1 (en) * | 2011-08-18 | 2013-02-21 | 深圳市华星光电技术有限公司 | Light guide plate positioning piece and backlight module comprising same |
| US8696189B2 (en) | 2011-08-18 | 2014-04-15 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Light-guild-plate positioning sheet and corresponding backlight module |
| CN103076692A (en) * | 2011-10-26 | 2013-05-01 | 三星电子株式会社 | Liquid crystal display and method of manufacturing a chassis to contain a light assembly |
| JP2013092749A (en) * | 2011-10-26 | 2013-05-16 | Samsung Display Co Ltd | Liquid crystal display |
| CN103002702A (en) * | 2012-09-04 | 2013-03-27 | 友达光电股份有限公司 | Support and frame with support |
| US9603267B2 (en) | 2012-09-04 | 2017-03-21 | Au Optronics Corporation | Bracket and frame body having the same |
| CN103002702B (en) * | 2012-09-04 | 2016-12-21 | 友达光电股份有限公司 | Support and frame with support |
| CN103148404B (en) * | 2012-11-08 | 2015-05-20 | 友达光电股份有限公司 | Display device and backlight module thereof |
| CN103148404A (en) * | 2012-11-08 | 2013-06-12 | 友达光电股份有限公司 | Display device and backlight module thereof |
| CN103791320B (en) * | 2013-08-26 | 2016-01-20 | 南京中电熊猫液晶显示科技有限公司 | A kind of LED-backlit module |
| CN103791320A (en) * | 2013-08-26 | 2014-05-14 | 南京中电熊猫液晶显示科技有限公司 | LED (light emitting diode) backlight module |
| CN103807809A (en) * | 2013-11-12 | 2014-05-21 | 友达光电股份有限公司 | Backlight module and display device |
| US9039270B1 (en) | 2013-11-12 | 2015-05-26 | Au Optronics Corporation | Backlight module and display device |
| CN103807809B (en) * | 2013-11-12 | 2015-10-28 | 友达光电股份有限公司 | Backlight module and display device |
| CN103955083A (en) * | 2014-01-17 | 2014-07-30 | 友达光电股份有限公司 | Display module support and display module using same |
| CN103823319A (en) * | 2014-03-10 | 2014-05-28 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| WO2015135228A1 (en) * | 2014-03-10 | 2015-09-17 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN103823319B (en) * | 2014-03-10 | 2016-03-09 | 深圳市华星光电技术有限公司 | Backlight module and the liquid crystal indicator with this backlight module |
| CN110491284A (en) * | 2019-09-10 | 2019-11-22 | 京东方科技集团股份有限公司 | Backlight frame, backlight module and display module |
| CN110491284B (en) * | 2019-09-10 | 2022-09-16 | 高创(苏州)电子有限公司 | Backlight frame, backlight module and display module |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091021 |