CN105353558A - Novel backlight module - Google Patents
Novel backlight module Download PDFInfo
- Publication number
- CN105353558A CN105353558A CN201510783654.0A CN201510783654A CN105353558A CN 105353558 A CN105353558 A CN 105353558A CN 201510783654 A CN201510783654 A CN 201510783654A CN 105353558 A CN105353558 A CN 105353558A
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- CN
- China
- Prior art keywords
- backlight module
- light
- reflector plate
- novel backlight
- backboard
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
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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)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the technical field of liquid crystal display and discloses a novel backlight module. The novel backlight module comprises a backboard, a light-emitting device, a light-guiding plate and a reflection piece. The reflection piece is arranged between the backboard and the light-guiding plate and provided with a light-incident side and a non-light-incident side. The light-emitting device is arranged ahead of the light-incident side. The front end of the light-incident side of the reflection piece is provided with protrusions and grooves. End surfaces of the protrusions are in contact with the light-emitting device. Anti-thrust structures are arranged on side walls of the reflection piece and comprise anti-thrust grooves. Limiting blocks used for limiting the reflection piece are arranged on the backboard and matched with the anti-thrust grooves. The novel backlight module has following beneficial effects: due to the fact that the anti-thrust structures of the reflection piece are matched with the limiting blocks of the backboard, the reflection piece is guaranteed to be fixed; and the novel backlight module is advantaged by being simple in structure, reasonable in design and high in structural stability.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of novel backlight module.
Background technology
In the electronics industry, backlight is a kind of form of illumination, is often used in LCD display.Backlight type and front smooth formula difference are that backlight is from side or irradiates behind, and as the term suggests front light is then irradiated from the front.They are used to be increased in the brightness on illuminance in low lighting environment and computer monitor, liquid crystal screen, produce bright dipping to show similar mode with CRT.Backlight module is one of key part and component of panel of LCD, and because liquid crystal itself is not luminous, namely the function of backlight module is well-off brightness and the light source be evenly distributed, can normal show image.
In the design of backlight module of existing TV, reflector plate has relative to light guide plate and certain inside contracts distance, also spacing distance is there is between reflector plate and light-emitting device, when inside contracting Distance geometry spacing distance and being fixed value, backlight module has higher job stability, but, traditional reflector plate great majority are square, in actual assembled process, reflector plate is usually easily moved and out of position, cannot accurately be fixed on predeterminated position, in addition, due to the restriction of reflector plate material and environmental factor, under the condition that humiture is different, reflector plate can expand and shrink, thus the relative position of reflector plate is changed, and then out of position.When inside contracting distance and being less, the spacing distance now between reflector plate and light-emitting device is also less, easily can occur that the upper incident side bright border of backlight module taste is bad; When inside contracting distance and being larger, the spacing distance now between reflector plate and light-emitting device is also comparatively large, and there will be luminance brightness loss, cause the luminance shortage of whole backlight module, lamp source utilization factor is not high.
In sum, guaranteeing that the spacing distance inside contracted between Distance geometry reflector plate and light-emitting device of the relative light guide plate of reflector plate meets designing requirement, is the technical matters being badly in need of in current design of backlight module solving.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of novel backlight module, matched with the limited block on backboard by the thrust structure on reflector plate, guarantee the fixing of reflector plate position, it is simple that the present invention has structure, reasonable in design, the advantage that structural stability is high.
In order to solve the problems of the technologies described above, the invention provides a kind of novel backlight module, comprise backboard, light-emitting device, light guide plate and reflector plate, described reflector plate is arranged between described backboard and described light guide plate, described reflector plate has incident side and non-light incidence side, described light-emitting device is arranged on described incident side front, described reflector plate incident side front end is provided with projection and groove, described projection end face contacts with described light-emitting device, described reflector plate incident side sidewall is provided with thrust structure, described thrust structure comprises thrust groove, described backboard is provided with for carrying out spacing limited block to described reflector plate, described limited block matches with described thrust groove.
Preferably, described groove is distributed in described projection adjacent area, and the groove width of described groove is greater than the width of described projection.
Preferably, described groove end face is greater than the distance of described light guide plate end face to described light-emitting device to the distance of described light-emitting device.
Particularly, described thrust structure also comprises the first block and the second block, and described thrust slot is in described first block, between described second block and described reflector plate incident side sidewall.
In detail, described first block is for limiting the displacement of the fore-and-aft direction of described reflector plate, and described second block is for limiting the displacement of the left and right directions of described reflector plate.
Preferably, the quantity of described thrust structure is 2, lays respectively at left side and the right side of described reflector plate incident side.
Preferably, described thrust structure is in " L " type, and described first block end face is concordant with described groove end face.
Alternatively, described limited block can be one-body molded with described backboard, also can be fixedly connected with described backboard.
Preferably, described limited block adopts adhesive technology to be fixed on described back plate surface.
Further, described light-emitting device is lamp bar PCB.
A kind of novel backlight module of the present invention, has following beneficial effect:
1. the reflector plate of a kind of novel backlight module of the present invention is designed with projection, and the height of projection sets according to preset value, guarantee that projection end face contacts with light-emitting device, the position of reflector plate is accurate.
2. the reflector plate of a kind of novel backlight module of the present invention is designed with thrust structure, and backboard is designed with limited block, thrust structure can match with limited block, thus is fixed by reflector plate, avoids reflector plate to move or deflection.
3. the limited block on a kind of novel backlight module dorsulum of the present invention not only can adopt one-body molded mode to obtain, and the mode be fixedly connected with can also be adopted to be arranged on backboard, and process means is flexible and changeable.
4. a kind of Novel backlight module structure of the present invention is simple, and reasonable in design, structural stability is high, has good value for applications.
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 cut-open view of a kind of Novel backlight module structure schematic diagram of the present invention;
Fig. 2 is the structural representation of reflector plate in a kind of novel backlight module of the present invention embodiment;
Fig. 3 is the structural representation of a kind of novel backlight module of the present invention embodiment dorsulum;
In figure: 1-backboard, 2-light-emitting device, 3-light guide plate, 4-reflector plate, 11-limited block, 41-projection, 42-groove, 43-thrust structure, 431-first block, 432-second block, 433-thrust groove.
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.
In one embodiment, as shown in Figure 1, the invention provides a kind of novel backlight module, comprise backboard 1, light-emitting device 2, light guide plate 3 and reflector plate 4, described reflector plate 4 is arranged between described backboard 1 and described light guide plate 3, described reflector plate 4 has incident side and non-light incidence side, and described light-emitting device 2 is arranged on described incident side front, and in the present embodiment, light-emitting device 2 adopts lamp bar PCB.
As shown in Figure 2, described reflector plate 4 incident side front end is provided with 4 projections 41 spaced apart, between adjacent projection 41, there is groove 42, the length of setting projection 41 is predeterminable range when normally working between reflector plate 4 and lamp bar PCB, therefore, when assembling reflector plate 4, must reflector plate 4 be pushed into bottom incident side, described projection 41 end face is contacted with lamp bar PCB, now can ensure the accuracy of the position of reflector plate 4.
In addition, described reflector plate 4 incident side is provided with 2 thrust structures 43, lay respectively at left side and the right side of described reflector plate 4 incident side, described thrust structure 43 comprises the first block 431 and the second block 432, described first block 431, thrust groove 433 is formed between described second block 432 and described reflector plate 4 incident side sidewall, in detail, described thrust structure 43 is in " L " type, described first block 431 end face is concordant with described groove 42 end face, described first block 431 is for limiting the displacement of the fore-and-aft direction of described reflector plate 4, described second block 432 is for limiting the displacement of the left and right directions of described reflector plate 4, in the present embodiment, thrust structure 43 adopts punching process to obtain.
Described groove 42 end face is greater than the distance of described light guide plate 3 end face to lamp bar PCB to the distance of lamp bar PCB, the spacing distance that effectively prevent between reflector plate 4 and lamp bar PCB is less, occur that the upper incident side bright border of backlight module taste is bad, or spacing distance between reflector plate 4 and lamp bar PCB is larger, there is luminance brightness loss, cause the luminance shortage of whole backlight module, the defect that lamp source utilization factor is not high.
In addition, as shown in Figure 3, described backboard 1 is provided with for carrying out spacing limited block 11 to described reflector plate 4, described limited block 11 matches with described thrust groove 433, limited block 11 described in the present embodiment adopts adhesive technology to be fixed on described backboard 1 surface, by described thrust structure 43 is snapped in described limited block 11, described reflector plate 4 is firmly fixed on the assigned address of described backboard 1, thus ensures the accuracy of position and distance.
A kind of novel backlight module of the present invention, has following beneficial effect:
1. the reflector plate of a kind of novel backlight module of the present invention is designed with projection, and the height of projection sets according to preset value, guarantee that projection end face contacts with light-emitting device, the position of reflector plate is accurate.
2. the reflector plate of a kind of novel backlight module of the present invention is designed with thrust structure, and backboard is designed with limited block, thrust structure can match with limited block, thus is fixed by reflector plate, avoids reflector plate to move or deflection.
3. the limited block on a kind of novel backlight module dorsulum of the present invention not only can adopt one-body molded mode to obtain, and the mode be fixedly connected with can also be adopted to be arranged on backboard, and process means is flexible and changeable.
4. a kind of Novel backlight module structure of the present invention is simple, and reasonable in design, structural stability is high, has good value for applications.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a novel backlight module, it is characterized in that, comprise backboard (1), light-emitting device (2), light guide plate (3) and reflector plate (4), described reflector plate (4) is arranged between described backboard (1) and described light guide plate (3), described reflector plate (4) has incident side and non-light incidence side, described light-emitting device (2) is arranged on described incident side front
Described reflector plate (4) incident side front end is provided with projection (41) and groove (42), and described projection (41) end face contacts with described light-emitting device (2),
Described reflector plate (4) incident side sidewall is provided with thrust structure (43), described thrust structure (43) comprises thrust groove (433), described backboard (1) is provided with for carrying out spacing limited block (11) to described reflector plate (4), described limited block (11) matches with described thrust groove (433).
2. novel backlight module according to claim 1, it is characterized in that, described groove (42) is distributed in described projection (41) adjacent area, and the groove width of described groove (42) is greater than the width of described projection (41).
3. novel backlight module according to claim 2, it is characterized in that, described groove (42) end face is greater than the distance of described light guide plate (3) end face to described light-emitting device (2) to the distance of described light-emitting device (2).
4. novel backlight module according to claim 3, it is characterized in that, described thrust structure (43) also comprises the first block (431) and the second block (432), and described thrust groove (433) is positioned at described first block (431), between described second block (432) and described reflector plate (4) incident side sidewall.
5. novel backlight module according to claim 4, it is characterized in that, described first block (431) is for limiting the displacement of the fore-and-aft direction of described reflector plate (4), and described second block (432) is for limiting the displacement of the left and right directions of described reflector plate (4).
6. the novel backlight module according to claim 4 or 5, is characterized in that, the quantity of described thrust structure (43) is 2, lays respectively at left side and the right side of described reflector plate (4) incident side.
7. novel backlight module according to claim 6, is characterized in that, described thrust structure (43) is in " L " type, and described first block (431) end face is concordant with described groove (42) end face.
8. novel backlight module according to claim 7, is characterized in that, described limited block (11) can be one-body molded with described backboard (1), also can be fixedly connected with described backboard (1).
9. novel backlight module according to claim 8, is characterized in that, described limited block (11) adopts adhesive technology to be fixed on described backboard (1) surface.
10. the novel backlight module according to claim 2,4,8 or 9, is characterized in that, described light-emitting device (2) is lamp bar PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783654.0A CN105353558B (en) | 2015-11-16 | 2015-11-16 | A kind of Novel back optical mode group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783654.0A CN105353558B (en) | 2015-11-16 | 2015-11-16 | A kind of Novel back optical mode group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105353558A true CN105353558A (en) | 2016-02-24 |
| CN105353558B CN105353558B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783654.0A Active CN105353558B (en) | 2015-11-16 | 2015-11-16 | A kind of Novel back optical mode group |
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| Country | Link |
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| CN (1) | CN105353558B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291435A (en) * | 2022-08-26 | 2022-11-04 | 惠科股份有限公司 | Backlight module and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200842456A (en) * | 2007-04-19 | 2008-11-01 | Chi Mei Optoelectronics Corp | Liquid crystal display and side-type backlight module thereof |
| CN101900308A (en) * | 2009-05-29 | 2010-12-01 | 友达光电(厦门)有限公司 | Light source framework and backlight module |
| CN102620185A (en) * | 2012-02-10 | 2012-08-01 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN202613208U (en) * | 2012-03-22 | 2012-12-19 | 深圳市德仓科技有限公司 | Backlight module |
| CN103196082A (en) * | 2013-04-15 | 2013-07-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN103292207A (en) * | 2012-02-22 | 2013-09-11 | 鑫成科技(成都)有限公司 | Backlight module and liquid crystal display device |
-
2015
- 2015-11-16 CN CN201510783654.0A patent/CN105353558B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200842456A (en) * | 2007-04-19 | 2008-11-01 | Chi Mei Optoelectronics Corp | Liquid crystal display and side-type backlight module thereof |
| CN101900308A (en) * | 2009-05-29 | 2010-12-01 | 友达光电(厦门)有限公司 | Light source framework and backlight module |
| CN102620185A (en) * | 2012-02-10 | 2012-08-01 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN103292207A (en) * | 2012-02-22 | 2013-09-11 | 鑫成科技(成都)有限公司 | Backlight module and liquid crystal display device |
| CN202613208U (en) * | 2012-03-22 | 2012-12-19 | 深圳市德仓科技有限公司 | Backlight module |
| CN103196082A (en) * | 2013-04-15 | 2013-07-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291435A (en) * | 2022-08-26 | 2022-11-04 | 惠科股份有限公司 | Backlight module and display device |
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| CN105353558B (en) | 2019-11-08 |
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Effective date of registration: 20200514 Address after: 310052 room 508, floor 5, building 4, No. 699, Wangshang Road, Changhe street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Alibaba (China) Co.,Ltd. Address before: 100029, B, 6 floor, World Trade Center, No. 36 East Third Ring Road, Dongcheng District, Beijing Patentee before: HEYI INTELLIGENT TECHNOLOGY (SHENZHEN) Co.,Ltd. |