CN105334663A - Side-entry backlight module with protection covers - Google Patents
Side-entry backlight module with protection covers Download PDFInfo
- Publication number
- CN105334663A CN105334663A CN201510783913.XA CN201510783913A CN105334663A CN 105334663 A CN105334663 A CN 105334663A CN 201510783913 A CN201510783913 A CN 201510783913A CN 105334663 A CN105334663 A CN 105334663A
- Authority
- CN
- China
- Prior art keywords
- protective cover
- side entrance
- light
- lamp bar
- back module
- 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
Links
- 230000001681 protective effect Effects 0.000 claims description 103
- 238000007598 dipping method Methods 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000004020 luminiscence type Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the field of backlight modules, and discloses a side-entry backlight module with protection covers. The side-entry backlight module comprises a light guide plate, a light bar and protection covers, wherein the light bar comprises multiple light sources, one light source is provided with one protection cover, the protection covers are fixedly arranged on the light bar, the light source is arranged in the corresponding protection cover, one end, away from the light bar, of the protection cover is provided with a light outlet, and one end, having the light outlet, of the protection cover is tightly attached to the light incident surface of the light guide plate. The side-entry backlight module with protection covers, disclosed by the invention, can be easily arranged on the light incident surface of the LGP (light guide plate), and can effectively separate a LED component from the LGP, and the protection covers can transmit light emitted from the LED component to the light incident surface of the LGP in high energy efficiency moe, and improve the light-emitting curve of the LED component.
Description
Technical field
The present invention relates to backlight module field, particularly relate to a kind of side entrance back module with protective cover.
Background technology
Liquid crystal display is current the most widely used display product, and common liquid crystal display is mainly made up of a liquid crystal panel and a backlight module, and wherein liquid crystal panel itself is not luminous, and the light source of panel is provided by backlight module.Present TV is more and more higher for appearance requirement, and be wherein more and more thinner for whole set of television thickness requirement, this also makes side entrance back TV become main flow.In prior art, side entering type lamp bar and light guide plate (LightGuidePlate, LGP) certain gap is had between, generally can place block on PCB for this reason, to prevent the mobile damage LED of LGP, as shown in Figure 1, LED matrix 6 generally can, at more than 0.5mm, cause the reduction of LED matrix 6 light efficiency greatly about more than 10% (relative to the situation of LED matrix 6 with guiding device 7 zero stand-off) with the gap of guiding device 7; On the other hand, the side entering type lamp bar 5 at LED matrix 6 place beats block 8, easily occur that block 8 comes off and the phenomenon of block 8 local damage guiding device 7, reduce the yield of assembling product.
Therefore, need research and development badly and a kind ofly can improve printing opacity efficiency, the backlight module that collides with LGP can be prevented again, have vital effect to the development of liquid crystal display.
Summary of the invention
For overcoming the deficiencies in the prior art; the object of the invention is: a kind of side entrance back module with protective cover is provided; the incidence surface of LGP can be arranged on easily; and effectively isolation LED element and LGP; light LED element sent to protective cover high energy efficiency is delivered to LGP incidence surface, and improves the luminosity curve of LED element.
In order to solve the technical matters in background technology; the invention provides a kind of side entrance back module with protective cover; comprise light guide plate, lamp bar and protective cover; described lamp bar comprises several light sources; each light source place is provided with a protective cover; described protective cover is fixedly mounted on lamp bar; described light source is arranged in corresponding protective cover; described protective cover is provided with bright dipping opening away from one end of lamp bar, one end that described protective cover has a described bright dipping opening be close to be arranged on described light guide plate incidence surface on.
Further, described light source and protective cover are multiple and quantity is identical, and the protective cover of arranged adjacent is fixedly connected with.
Preferably, the madial wall of each protective cover is curved-surface structure.
Preferably, the madial wall of described protective cover is horn-like or funnel-form, and described protective cover expands outwardly to away from the other end direction of lamp bar in the one end near lamp bar.
Further, the light source in described protective cover is 0.1-0.2mm to the distance range of the incidence surface of described light guide plate.
Particularly, described protective cover is arranged in a row, the bright dipping opening edge of adjacent protective cover along mutually near.
Particularly, described light source is LED element, and described lamp bar also comprises pcb board, and described LED element is arranged on described pcb board.
Preferably; described protective cover is fixed on described pcb board by welding manner, or, described pcb board is provided with perforate; described protective cover is provided with the reference column coordinated with described perforate, described reference column coordinates with perforate protective cover is fixed on described pcb board.
Further, described pcb board is provided with back-up block, described back-up block is positioned at below protective cover, and leans out the bright dipping opening of described protective cover, and described back-up block is used for supporting and installing described light guide plate.
Alternatively, described protective cover is made up of plastics or metal material, and by packet, at middle part, cavate chamber wall is formed the madial wall of each protective cover.
Adopt technique scheme, the present invention has following beneficial effect: 1. prevent LGP damage LED element; 2. shorten the coupling electrical distance between LED and LGP incidence surface, reduce optical energy loss, promote the coupling efficiency of LED element; 3. the madial wall of protective cover is designed to curved surface according to the characteristics of luminescence of LED, optimizes the luminosity curve of LED, improves the taste of LGP incident side; 4. the top of protective cover is provided with bright dipping opening, and has and extend out structure, reduces a number of LED element, reduces design cost; 5. multiple protective cover connects in a row, and is fixedly connected with pcb board, is conveniently arranged on the incidence surface of LGP by backlight module.In sum; the side entrance back module with protective cover of the present invention can be arranged on the incidence surface of LGP easily; and effectively isolation LED element and LGP, light LED element sent to protective cover high energy efficiency is delivered to LGP incidence surface, and improves the luminosity curve of LED element.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of side entrance back module of the prior art;
Fig. 2 is the side view with the side entrance back module of protective cover that the embodiment of the present invention provides;
Fig. 3 is the structural representation of the single protective cover that the embodiment of the present invention provides.
Wherein, in figure, Reference numeral corresponds to: 1-PCB plate, 2-light source, 3-protective cover, 4-light guide plate, 5-side entering type lamp bar, 6-LED device, 7-guiding device, 8-block, 9-back-up block.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
The structural representation with the side entrance back module of protective cover that embodiment 1: Fig. 2 provides for the embodiment of the present invention, can clearly be seen that from figure, the side entrance back module of what the present embodiment provided have protective cover comprises light guide plate 4, lamp bar and protective cover 3, described lamp bar comprises multiple light source 2, each light source 2 place is provided with a protective cover 3, described protective cover 3 is fixedly mounted on lamp bar, described light source 2 is arranged in corresponding protective cover 3, described protective cover 3 is provided with bright dipping opening away from one end of lamp bar, one end that described protective cover 3 has a described bright dipping opening be close to be arranged on described light guide plate 4 incidence surface on, wherein, described light source 2 is LED element, described lamp bar also comprises pcb board 1, described light source 2 is arranged on described pcb board 1.
Further, the light source 2 in described protective cover 3 is 0.1mm to the distance of the incidence surface of described light guide plate 4.
Conveniently protective cover 3 is fixed on pcb board 1, described protective cover 3 is arranged in a row, adjacent protective cover 3 is fixedly connected with, protective cover 3 is made to form the entirety of a strip, when installation, only need one-step installation can be arranged on pcb board 1 by the protective cover 3 of whole piece, and without the need to single protective cover 3 is fixedly mounted respectively, time saving and energy saving, Fig. 3 is the structural representation of the single protective cover that the embodiment of the present invention provides, be specially described protective cover 3 to be made of plastics, the madial wall of each protective cover 3 is by plastic square block cavate chamber wall formation in the middle.
Preferably; the madial wall of each protective cover 3 is the curved-surface structure designed according to the characteristics of luminescence of LED element; improve the lighting angle of LED element; improve the taste of LGP incident side, preferably, as shown in Figure 3; the madial wall of described protective cover 3 is horn-like or funnel-form; be specially described protective cover 3 expanding outwardly to the other end away from lamp bar near one end of lamp bar, the bright dipping opening edge of adjacent protective cover 3 along mutually near, increase the light inlet area of LGP incidence surface.
In the present embodiment; preferably; described protective cover 3 is fixed on described pcb board 1 by welding manner, makes protective cover and lamp bar form an entirety, and the incidence surface being conducive to attaching it to LGP like this forms backlight module; such as on pcb board 1, at least two back-up blocks are installed; described back-up block is positioned at below protective cover 3, and leans out the bright dipping opening of described protective cover 3, when installing LGP; LGP is placed on described back-up block, and the bright dipping opening of protective cover 3 is close on the incidence surface of LGP.
Embodiment 2: as different from Example 1; described protective cover 3 is specific as follows with the fixed form of pcb board 1: described pcb board 1 is provided with perforate; described protective cover 3 is provided with the reference column coordinated with described perforate, described reference column coordinates with perforate protective cover 3 is fixed on described pcb board 1.
In the present embodiment; light source 2 in described protective cover 3 is 0.2mm to the distance of the incidence surface of described light guide plate 4; described protective cover 3 is made up of plastics or metal material, and each protective cover 3 forms the cover body of described protective cover 3 by the metal squares body that middle part hollows out.Other features are all identical with embodiment 1, do not repeat them here.
Embodiment 3: with embodiment 1 and 2 unlike, the quantity that the present embodiment does not limit protective cover 3 and light source 2 is multiple, when single protective cover 3 and light source 2 are as single luminescence unit, then forms lamp bar by multiple described luminescence unit and can realize the application equally.Other features are all identical with embodiment 1, do not repeat them here.
Embodiment 4: the curve form that the present embodiment does not limit described protective cover madial wall is the conical surface curve form in embodiment 1,2 or 3; but design can be optimized according to the characteristics of luminescence of different LED element; conical surface shape is added as being designed to the face of cylinder; or spiral camber shape, or be made on curved surface and set up other optimal design such as reflection horizon or reflecting material.
The side entrance back module with protective cover of the present invention can be arranged on the incidence surface of LGP easily, and effectively isolates LED element and LGP, and light LED element sent to protective cover high energy efficiency is delivered to LGP incidence surface, and improves the luminosity curve of LED element.
Above disclosedly be only several preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. one kind has the side entrance back module of protective cover, it is characterized in that, comprise light guide plate (4), lamp bar and protective cover (3), described lamp bar comprises several light sources (2), each light source (2) place is provided with a protective cover (3), described protective cover (3) is fixedly mounted on lamp bar, described light source (2) is arranged in corresponding protective cover (3), described protective cover (3) is provided with bright dipping opening away from one end of lamp bar, one end that described protective cover (3) has a described bright dipping opening be close to be arranged on described light guide plate (4) incidence surface on.
2. the side entrance back module with protective cover according to claim 1, is characterized in that, described light source (2) is multiple with protective cover (3) and quantity is identical, and the protective cover (3) of arranged adjacent is fixedly connected with.
3. the side entrance back module with protective cover according to claim 1, is characterized in that, the madial wall of each protective cover (3) is curved-surface structure.
4. the side entrance back module with protective cover according to claim 3; it is characterized in that; the madial wall of described protective cover (3) is horn-like or funnel-form, and described protective cover (3) expands outwardly to away from the other end direction of lamp bar in the one end near lamp bar.
5. the side entrance back module with protective cover according to claim 1, is characterized in that, the light source (2) in described protective cover (3) is 0.1-0.2mm to the distance range of the incidence surface of described light guide plate (4).
6. the side entrance back module with protective cover according to claim 2, is characterized in that, described protective cover (3) is arranged in a row, the bright dipping opening edge of adjacent protective cover (3) along mutually near.
7. according to the side entrance back module with protective cover in claim 1-6 described in any one; it is characterized in that; described light source (2) is LED element, and described lamp bar also comprises pcb board (1), and described LED element is arranged on described pcb board (1).
8. the side entrance back module with protective cover according to claim 7; it is characterized in that; described protective cover (3) is fixed on described pcb board (1) by welding manner; or; (1) is provided with perforate to described pcb board; described protective cover (3) is provided with the reference column coordinated with described perforate, described reference column coordinates with perforate protective cover (3) is fixed on described pcb board (1).
9. the side entrance back module with protective cover according to claim 7; it is characterized in that; described pcb board (1) is provided with back-up block (9); described back-up block (9) is positioned at protective cover (3) below; and leaning out the bright dipping opening of described protective cover (3), described back-up block (9) is for supporting and installing described light guide plate (4).
10. the side entrance back module with protective cover according to claim 1,2,3,4,5,7,8 or 9; it is characterized in that; described protective cover (3) is made up of plastics or metal material, and by packet, at middle part, cavate chamber wall is formed the madial wall of each protective cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783913.XA CN105334663A (en) | 2015-11-16 | 2015-11-16 | Side-entry backlight module with protection covers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783913.XA CN105334663A (en) | 2015-11-16 | 2015-11-16 | Side-entry backlight module with protection covers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105334663A true CN105334663A (en) | 2016-02-17 |
Family
ID=55285285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783913.XA Pending CN105334663A (en) | 2015-11-16 | 2015-11-16 | Side-entry backlight module with protection covers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105334663A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287391A (en) * | 2018-04-17 | 2018-07-17 | 深圳市世纪联合创新科技有限公司 | A kind of positioning light conducting plate structure of setting lamp bar protective device |
| WO2019210710A1 (en) * | 2018-05-02 | 2019-11-07 | 京东方科技集团股份有限公司 | Light source assembly, backlight module and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1637523A (en) * | 2003-12-26 | 2005-07-13 | 富士通显示技术株式会社 | Backlight and liquid crystal display device |
| KR100764455B1 (en) * | 2006-10-11 | 2007-10-05 | 삼성전기주식회사 | Backlit device |
| KR20110135703A (en) * | 2010-06-11 | 2011-12-19 | 엘지이노텍 주식회사 | Backlight unit and display device having same |
| KR20120128032A (en) * | 2011-05-16 | 2012-11-26 | 엘지디스플레이 주식회사 | Back Light Unit |
| KR20130003826A (en) * | 2011-07-01 | 2013-01-09 | 희성전자 주식회사 | Assembling structure of backlight unit |
| WO2013038977A1 (en) * | 2011-09-13 | 2013-03-21 | シャープ株式会社 | Illumination device, display device, and television reception device |
-
2015
- 2015-11-16 CN CN201510783913.XA patent/CN105334663A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1637523A (en) * | 2003-12-26 | 2005-07-13 | 富士通显示技术株式会社 | Backlight and liquid crystal display device |
| KR100764455B1 (en) * | 2006-10-11 | 2007-10-05 | 삼성전기주식회사 | Backlit device |
| KR20110135703A (en) * | 2010-06-11 | 2011-12-19 | 엘지이노텍 주식회사 | Backlight unit and display device having same |
| KR20120128032A (en) * | 2011-05-16 | 2012-11-26 | 엘지디스플레이 주식회사 | Back Light Unit |
| KR20130003826A (en) * | 2011-07-01 | 2013-01-09 | 희성전자 주식회사 | Assembling structure of backlight unit |
| WO2013038977A1 (en) * | 2011-09-13 | 2013-03-21 | シャープ株式会社 | Illumination device, display device, and television reception device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287391A (en) * | 2018-04-17 | 2018-07-17 | 深圳市世纪联合创新科技有限公司 | A kind of positioning light conducting plate structure of setting lamp bar protective device |
| WO2019210710A1 (en) * | 2018-05-02 | 2019-11-07 | 京东方科技集团股份有限公司 | Light source assembly, backlight module and display device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |