CN104279465B - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN104279465B CN104279465B CN201410591586.3A CN201410591586A CN104279465B CN 104279465 B CN104279465 B CN 104279465B CN 201410591586 A CN201410591586 A CN 201410591586A CN 104279465 B CN104279465 B CN 104279465B
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- CN
- China
- Prior art keywords
- backboard
- backlight module
- lamp bar
- circuit board
- led
- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to display technology field, disclose a kind of backlight module and display device, in order to reduce the integral thickness of display device, improve the slimming effect of display device.Wherein backlight module includes: backboard；It is arranged at the lamp bar reflector plate on the backboard lampshade of backboard；Lamp bar；It is positioned at the reflecting layer of backboard, light guide plate；Wherein, lamp bar includes: flexible print circuit board and be positioned on flexible print circuit board and multiple LED spaced apart, and the base plate of backboard is provided with at least one through hole, and through hole is for the traverse of multiple LED；The base plate of side and backboard that flexible print circuit board is provided with LED deviates from that the one side of light guide plate is fixing to be connected.
Description
Technical field
The present invention relates to display technology field, particularly to a kind of backlight module and the display device adopting this backlight module.
Background technology
Along with the development of lcd technology, people are more and more higher to size and the thickness requirement of display device, and the display device of large scale and ultrathin is increasingly the user's favorite.
As shown in Figure 1, Fig. 1 is the part-structure schematic diagram of backlight module in prior art, backlight module of the prior art generally comprises: backboard 01, be positioned at the lamp bar 02 of backboard 01, reflecting layer 03 and light guide plate 04 etc., as in figure 2 it is shown, Fig. 2 is the lamp bar structural representation in backlight module of the prior art；Wherein lamp bar 02 includes: flexible print circuit board 021 (FlexiblePrintedcircuit, it is called for short FPC), and it is positioned on flexible print circuit board 021 and multiple LED 022 spaced apart, flexible print circuit board 021 is attached on the base plate 012 of backboard 01, in order to reduce the loss of the light that LED sends, backboard 01 can be provided with backboard lampshade 011, and put lamp bar reflector plate 05 at backboard lampshade 011 towards the one side of LED is standing.
Visible, inventor finds in the process realize the present invention: the thickness of backlight module of the prior art is generally the summation of the thickness of the thickness of the base plate of backboard, the thickness of lamp bar, the thickness of lamp bar reflector plate and backboard lampshade, thickness on the whole is bigger so that the thickness of display device entirety is also bigger.
Summary of the invention
The invention provides a kind of backlight module and display device, in order to reduce the integral thickness of display device, improve the slimming effect of display device.
For reaching above-mentioned purpose, the present invention provides techniques below scheme:
The invention provides a kind of backlight module, including: backboard；It is arranged at the lamp bar reflector plate on the backboard lampshade of described backboard；Lamp bar；It is positioned at the reflecting layer of described backboard, light guide plate；Wherein, described lamp bar includes: flexible print circuit board and be positioned on described flexible print circuit board and multiple LED spaced apart, and the base plate of described backboard is provided with at least one through hole, and described through hole is for the traverse of the plurality of LED；Described flexible print circuit board is provided with the side of LED and deviates from the base plate of described backboard that the one side of described light guide plate is fixing to be connected.
Backlight module provided by the invention, by the flexible print circuit board of lamp bar being arranged on the outside of backboard, reduce the thickness of backlight module, when the LED on lamp bar is from the through hole traverse that the base plate of backboard is provided with, the thickness of base plate overlaps with the height component of LED, that is the thickness of backlight module provided by the invention is the thickness of lamp bar, the summation of the thickness of lamp bar reflector plate and the thickness of backboard lampshade, thickness on the whole compared with prior art decreases a lot, and can ensure that the height height lower than light guide plate light emission side of LED, reduce the loss of the light that LED sends, therefore, display module provided by the invention, the integral thickness of display device can be reduced, improve the slimming effect of display device.
In some optional embodiments, the number of described through hole is one, and can hold all of LED.
In some optional embodiments, the number of described through hole is identical with the number of the LED that described lamp bar is provided with and one_to_one corresponding.
In some optional embodiments, described flexible print circuit board is provided with the side of LED to deviate from the one side of described light guide plate and is connected by bond plies is fixing with the base plate of described backboard.The very thin thickness of bond plies, is far smaller than the thickness of the base plate of backboard, therefore increases the thickness or little compared with backlight module of the prior art of the backlight module after double faced adhesive tape.
In some optional embodiments, described flexible print circuit board deviates from the side of the plurality of LED and is provided with protecting film.The setting of protecting film is possible to prevent the side that printed substrate deviates from multiple LED to damage.The very thin thickness of protecting film, is far smaller than the thickness of the base plate of backboard, therefore increases the thickness or little compared with backlight module of the prior art of the backlight module after protecting film.
In some optional embodiments, described protecting film is one-faced tapes.
Present invention also offers a kind of display device, including housing, also include the backlight module described in any of the above-described item.Due to above-mentioned backlight module, it is possible to reduce the integral thickness of display device, improve the slimming effect of display device, so, display device provided by the invention has good slimming effect.
In some optional embodiments, the position that described housing is corresponding with described lamp bar is provided with the groove for holding described flexible print circuit board.Groove the thickness that can reduce whole display device further is set.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of backlight module in prior art；
Fig. 2 is the lamp bar structural representation in backlight module of the prior art；
The part-structure schematic diagram of the backlight module that Fig. 3 provides for the embodiment of the present invention；
Lamp bar structural representation in the backlight module that Fig. 4 provides for the embodiment of the present invention；
Fig. 5 is that the A of the lamp bar in the backlight module provided by the invention shown in Fig. 4 is to structural representation.
Accompanying drawing labelling:
01-backboard 011-backboard lampshade
012-base plate 02-lamp bar
021-flexible print circuit board 022-LED lamp
03-reflecting layer 04-light guide plate
05-lamp bar reflector plate 1-backboard
11-backboard lampshade 12-base plate
13-through hole 2-lamp bar
21-flexible print circuit board 22-LED lamp
3-reflecting layer 4-light guide plate
5-lamp bar reflector plate 6-bond plies
7-protecting film
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one
As shown in Figure 3 and Figure 4, wherein: the part-structure schematic diagram of the backlight module that Fig. 3 provides for the embodiment of the present invention；Lamp bar structural representation in the backlight module that Fig. 4 provides for the embodiment of the present invention；The backlight module that the embodiment of the present invention provides, including: backboard 1；It is arranged at the lamp bar reflector plate 5 on the backboard lampshade 11 of backboard 1；Lamp bar 2；It is positioned at the reflecting layer 3 of backboard 1, light guide plate 4；Wherein, as shown in Figure 4, lamp bar 2 includes: flexible print circuit board 21 and be positioned on flexible print circuit board 21 and multiple LED 22 spaced apart, and the base plate 12 of backboard 1 is provided with at least one through hole 13, and through hole 13 passes for multiple LED 22；The base plate 12 of side and backboard 1 that flexible print circuit board 21 is provided with LED 22 deviates from that the one side of light guide plate 4 is fixing to be connected.
Backlight module provided by the invention, by the flexible print circuit board 21 of lamp bar 2 being arranged on the outside of backboard 1, reduce the thickness of backlight module, when the LED 22 on lamp bar 2 is from through hole 13 traverse that the base plate 12 of backboard 1 is provided with, the thickness of base plate overlaps with the height component of LED 22, that is the thickness of backlight module provided by the invention is the thickness of lamp bar 2, the summation of the thickness of lamp bar reflector plate 5 and the thickness of backboard lampshade 11, thickness on the whole compared with prior art decreases a lot, and can ensure that the height height lower than light guide plate light emission side of LED, reduce the loss of the light that LED sends, therefore, display module provided by the invention, the integral thickness of display device can be reduced, improve the slimming effect of display device.
Optional, the number of through hole 13 is one, and can hold all of LED.The installation of the lamp bar that spacing that one through hole is easy between two adjacent LEDs lamp is less.
Optionally, the number of through hole 13 is identical with the number of the LED 22 that lamp bar 2 is provided with and one_to_one corresponding.Comparing only one through hole of design, this can be designed so that the intensity of backboard improves.
As it is shown in figure 5, the A that Fig. 5 is the lamp bar in the backlight module provided by the invention shown in Fig. 4 is to structural representation.Above-mentioned flexible print circuit board 21 can fixing with backboard in several ways be connected, and in a kind of specific embodiment, the base plate of side and backboard 1 that flexible print circuit board 21 is provided with LED 22 deviates from the one side of light guide plate 4 and is connected by bond plies 6 is fixing.The very thin thickness of bond plies, is far smaller than the thickness of the base plate of backboard, therefore increases the thickness or little compared with backlight module of the prior art of the backlight module after double faced adhesive tape.Ferrum husband's width of double faced adhesive tape and position those skilled in the art can determine according to the structure of flexible print circuit board.
It should be noted that, so that the height of LED ensures the height lower than light guide plate light emission side, the thickness of the bond plies of attaching can be adjusted according to actual needs, the one side of the light guide plate part corresponding with the flexible print circuit board of lamp bar can also be deviated from backboard and some projections that can remove and install are set, with the no matter many thick LED of guarantee, light guide plate can be mated use.
Preferably in embodiment, flexible print circuit board deviates from the side of multiple LED and is provided with protecting film 7.The setting of protecting film is possible to prevent the side that printed substrate deviates from multiple LED to damage.The very thin thickness of protecting film, is far smaller than the thickness of the base plate of backboard, therefore increases the thickness or little compared with backlight module of the prior art of the backlight module after protecting film.
Certainly, the concrete material of said protection film can be multiple, and optionally, protecting film is one-faced tapes.Preferably in embodiment, one-faced tapes is also for heat conduction adhesive tape.
Embodiment two
Embodiments provide a kind of display device, including housing, also include the backlight module according to any one of above-described embodiment one.Due to above-mentioned backlight module, it is possible to reduce the integral thickness of display device, improve the slimming effect of display device, so, display device provided by the invention has good slimming effect.
Preferably in embodiment, the position that housing is corresponding with lamp bar is provided with the groove for holding flexible print circuit board.The thickness that the whole display device of reduction that can improve is set of groove.
Obviously, the embodiment of the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. a backlight module, including: backboard；It is arranged at the lamp bar reflector plate on the backboard lampshade of described backboard；Lamp bar；It is positioned at the reflecting layer of described backboard, light guide plate；Wherein, described lamp bar includes: flexible print circuit board and be positioned on described flexible print circuit board and multiple LED spaced apart, it is characterised in that
The base plate of described backboard is provided with at least one through hole, and described through hole is for the traverse of the plurality of LED；Described flexible print circuit board is provided with the side of LED and deviates from the base plate of described backboard that the one side of described light guide plate is fixing to be connected；
The part that described backboard deviates from the one side of described light guide plate corresponding with the flexible print circuit board of described lamp bar arranges multiple projection that can remove and install.
2. backlight module according to claim 1, it is characterised in that the number of described through hole is, and can hold all of LED.
3. backlight module according to claim 1, it is characterised in that the number of described through hole is identical with the number of the LED that described lamp bar is provided with and one_to_one corresponding.
4. backlight module according to claim 1, it is characterised in that described flexible print circuit board is provided with the side of LED to deviate from the one side of described light guide plate and be connected by bond plies is fixing with the base plate of described backboard.
5. the backlight module according to any one of Claims 1 to 4, it is characterised in that described flexible print circuit board deviates from the side of the plurality of LED and is provided with protecting film.
6. backlight module according to claim 5, it is characterised in that described protecting film is one-faced tapes.
7. a display device, including housing, it is characterised in that also include the backlight module as described in any one of claim 1～6.
8. display device according to claim 7, it is characterised in that the position that described housing is corresponding with described lamp bar is provided with the groove for holding described flexible print circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410591586.3A CN104279465B (en) | 2014-10-28 | 2014-10-28 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410591586.3A CN104279465B (en) | 2014-10-28 | 2014-10-28 | Backlight module and display device |
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| Publication Number | Publication Date |
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| CN104279465A CN104279465A (en) | 2015-01-14 |
| CN104279465B true CN104279465B (en) | 2016-07-06 |
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| CN201410591586.3A Active CN104279465B (en) | 2014-10-28 | 2014-10-28 | Backlight module and display device |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104501098B (en) * | 2015-01-16 | 2017-03-29 | 厦门京东方电子有限公司 | A kind of attaching method of reflection edge strip |
| TWI546595B (en) * | 2015-04-17 | 2016-08-21 | 友達光電股份有限公司 | Backlight module |
| US10520664B2 (en) | 2016-03-25 | 2019-12-31 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| CN105757537B (en) * | 2016-03-25 | 2020-11-13 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN105782820B (en) * | 2016-04-27 | 2018-07-27 | 合肥京东方显示光源有限公司 | The assemble method of backboard, back light unit, display device and back light unit |
| CN106708182B (en) * | 2016-10-21 | 2019-09-17 | 广州视源电子科技股份有限公司 | Mutual dull and stereotyped lower frame of intelligence and mutual intelligence are dull and stereotyped |
| US10429574B2 (en) | 2017-06-30 | 2019-10-01 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display and backlight module thereof |
| CN107121724A (en) * | 2017-06-30 | 2017-09-01 | 武汉华星光电技术有限公司 | Liquid crystal display and its backlight module |
| CN107490955A (en) * | 2017-09-10 | 2017-12-19 | 南京中高知识产权股份有限公司 | A kind of intelligent watch |
| CN108388046A (en) * | 2018-02-05 | 2018-08-10 | 厦门天马微电子有限公司 | Backlight module, display module and display device |
| CN110095906B (en) * | 2019-05-31 | 2021-10-08 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN110221478A (en) * | 2019-06-25 | 2019-09-10 | 武汉华星光电技术有限公司 | A kind of backlight module and preparation method thereof, display device |
| CN111679506A (en) * | 2020-06-29 | 2020-09-18 | 维沃移动通信有限公司 | Backlight module and electronic equipment |
| CN114387871A (en) * | 2021-11-30 | 2022-04-22 | 重庆惠科金渝光电科技有限公司 | Backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100573263C (en) * | 2004-06-25 | 2009-12-23 | 奇美电子股份有限公司 | Backlight module |
| CN101533182A (en) * | 2008-03-12 | 2009-09-16 | 上海广电Nec液晶显示器有限公司 | Backlight device |
| CN202082738U (en) * | 2011-05-05 | 2011-12-21 | 冠捷投资有限公司 | Backlight module with thickness being adjustable |
| CN202394014U (en) * | 2012-01-09 | 2012-08-22 | 京东方科技集团股份有限公司 | Liquid crystal display module |
| CN202469772U (en) * | 2012-03-23 | 2012-10-03 | 京东方科技集团股份有限公司 | Direct-light-type backlight source and displaying device |
| CN103513809A (en) * | 2012-06-30 | 2014-01-15 | 吴佳倩 | FPC touch screen |
| CN103555443A (en) * | 2013-10-30 | 2014-02-05 | 合肥市华美光电科技有限公司 | Aqueous solder paste cleaning agent for printed circuit board and preparation method for aqueous solder paste cleaning agent |
| CN103543559B (en) * | 2013-11-05 | 2016-11-02 | 深圳市华星光电技术有限公司 | Down straight aphototropism mode set |
| CN203811947U (en) * | 2014-04-15 | 2014-09-03 | 合肥鑫晟光电科技有限公司 | Backlight module and displaying device |
| CN203896303U (en) * | 2014-05-23 | 2014-10-22 | 纳米新能源（唐山）有限责任公司 | Flexible energy storage device based on thin-film solar cell |
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| CN104279465A (en) | 2015-01-14 |
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