CN204345547U - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN204345547U CN204345547U CN201420827581.1U CN201420827581U CN204345547U CN 204345547 U CN204345547 U CN 204345547U CN 201420827581 U CN201420827581 U CN 201420827581U CN 204345547 U CN204345547 U CN 204345547U
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- CN
- China
- Prior art keywords
- protuberance
- backlight module
- glue frame
- main part
- accepting groove
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- 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.)
- Expired - Fee Related
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- 239000003292 glue Substances 0.000 claims abstract description 64
- 238000005282 brightening Methods 0.000 claims description 37
- 238000013461 design Methods 0.000 abstract description 8
- 238000009792 diffusion process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
A kind of backlight module, comprise glue frame and the blooming piece being embedded in glue frame, blooming piece comprises main part and the outward extending diaphragm protuberance of at least one main body side, the angle that one is less than right angle is formed between main part and protuberance junction, glue frame is provided with the accepting groove of opening towards main part, protuberance is contained in accepting groove, and the shape of accepting groove and protuberance suitable.The utility model by arranging the protuberance extended from its main part on blooming piece, wherein the length on one side away from main part of protuberance is greater than the length on one side that this protuberance is connected with main part, the accepting groove suitable with this protuberance is set on glue frame simultaneously, protuberance is made to be contained in accepting groove, thus ensure that blooming piece is not easily shifted in glue frame, the stability of back light module unit structure can be improved, realize the design requirement of ultra-narrow frame simultaneously.
Description
Technical field
The utility model relates to Display Technique neck field, particularly relates to a kind of backlight module.
Background technology
Along with the fast development of science and technology, the experience requirements of user to the consumption electronic product such as mobile phone, PDA is more and more higher.In order to meet the demand of user, important component part-the LCDs (LCD) of mobile phone is just towards more high brightness, wider colour gamut, narrower frame and ultra-thin future development, and therefore the structural stability of the backlight module (LCM) of LCDs, the aspect such as the raising of brightness and the design of frame are all important research topics.
Common backlight module comprises light guide plate, multiple blooming piece and the glue frame for accommodating light guide plate and multiple blooming piece.Blooming piece is fixed on glue frame mainly through modes such as bonding, screens, and the structure of bonding area and position and screens not only affects the stability of back light module unit structure, also directly affects the realization of the ultra-narrow frame of backlight module.
Usually, the problem that in backlight module, blooming piece is shifted likely following factor causes: 1. the design of assembly structure is unreasonable; 2. the assembly clearance of diaphragm is excessive; 3. the viscosity of glue is not enough; 4. bonding area is too small.Wherein, assembly structure is unreasonable and bond area is too small, and especially bond area is too small, is the main factor causing diaphragm to be shifted.If bond area (bonding area of diaphragm and glue frame) is too small, mobile phone do complete machine fall or testing drum time, diaphragm is just easy to, because being pasted not strongly, shifting phenomena occurs, thus causes the structural instability of backlight module, affects the display effect of liquid crystal display screen of mobile phone.But, if the certain bond area of guarantee and adopt wider glue frame, then to run counter to the pursuit of ultra-narrow frame again.
Utility model content
Based on this, be necessary for the problems referred to above, a kind of stability that can improve back light module unit structure be provided, realize the backlight module of the design requirement of ultra-narrow frame simultaneously.
A kind of backlight module, comprise glue frame and the blooming piece being embedded in glue frame, blooming piece comprises main part and the outward extending diaphragm protuberance of at least one main body side, the angle that one is less than right angle is formed between main part and protuberance junction, glue frame is provided with the accepting groove of opening towards main part, protuberance is contained in accepting groove, and the shape of accepting groove and protuberance suitable.
Wherein in an embodiment, diaphragm protuberance is the inverted trapezoidal structure that main body outwards protrudes out.
Wherein in an embodiment, the side away from main part of inverted trapezoidal structure is provided with that at least one is raised or sunken.
Wherein in an embodiment, raised or sunken is wedge structure.
Wherein in an embodiment, the quantity of diaphragm protuberance is four, is separately positioned on four sides of blooming piece.
Wherein in an embodiment, blooming piece comprises brightening piece and lower brightening piece, upper brightening piece and lower brightening piece all have diaphragm protuberance, be provided with assembly clearance between upper brightening piece and lower brightening piece, the degree of depth of accepting groove is the thickness of upper brightening piece, the thickness of lower brightening piece and the height sum of assembly clearance.
Wherein in an embodiment, backlight module also comprises the anti-dazzling screen being embedded in glue frame, and upper brightening piece is fixed on glue frame by anti-dazzling screen.
Wherein in an embodiment, backlight module also comprises light guide plate, light guide plate comprises light guide plate main body portion and at least one is from the outward extending light guide plate protuberance of light guide plate main part, glue frame is provided with the storage tank chimeric with light guide plate protuberance, light guide plate protuberance is consistent with diaphragm protuberance structure, and not overlapping.
Wherein in an embodiment, backlight module also comprises chase, and glue frame is embedded in chase inside.
Wherein in an embodiment, backlight module also comprises the barricade that at least one is arranged at the side of the blooming piece dorsad of glue frame, and accepting groove is arranged on the limit be connected with barricade of glue frame.
Above-mentioned backlight module at least has the following advantages:
By arranging the protuberance extended from its main part on blooming piece, wherein the length on one side away from main part of protuberance is greater than the length on one side that this protuberance is connected with main part, the accepting groove suitable with this protuberance is set on glue frame simultaneously, protuberance is contained in accepting groove, thus ensures that blooming piece is not easily shifted in glue frame.
The structure of the utility model from assembling and the cut of blooming piece, design the blooming piece of a kind of protuberance in the inverted trapezoidal structure protruded out from described main part, this blooming piece is fixed in glue frame, can improve the stability of back light module unit structure, realizes the design requirement of ultra-narrow frame simultaneously.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the backlight module in an embodiment;
Fig. 2 is the enlarged drawing of part A in Fig. 1;
Fig. 3 is the partial enlarged drawing after glue frame, chase and the optical film combination in Fig. 1;
Fig. 4 is the decomposing schematic representation of the backlight module in another embodiment;
Fig. 5 is the decomposing schematic representation of the backlight module in another embodiment;
Fig. 6 is the partial enlarged drawing after glue frame, barricade and the optical film combination in Fig. 5.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail detailed description of the invention of the present utility model below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar improvement without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public concrete enforcement.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in description of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, backlight module 100 comprises glue frame 10, light guide plate 20, anti-dazzling screen 34, blooming piece and chase 40, and wherein blooming piece comprises brightening piece 31, lower brightening piece 32, diffusion sheet 33 and reflector plate 35.Upper brightening piece 31, lower brightening piece 32, diffusion sheet 33 and light guide plate 20 are cascading from top to bottom and are housed in glue frame 10; upper brightening piece 31 is embedded in glue frame 10 by anti-dazzling screen 34; reflector plate 35 is attached at the bottom surface of glue frame 10; for reflecting the light revealed from light guide plate 20 side and bottom surface; glue frame 10 is embedded in chase 40, and chase 40 is for the protection of glue frame 10.
See also Fig. 1 to Fig. 3, above brightening piece 31 is example, upper brightening piece 31 comprises the diaphragm protuberance 312 that main part 311 and main body 311 extend to glue frame 10 side, forms the angle (see Fig. 3) that is less than right angle between main part 311 and diaphragm protuberance 312 junction.Particularly, diaphragm protuberance 312 comprises away from the first limit 312a of the main part 311 and Second Edge 312b (see Fig. 2) that is connected with main part 311, and the length H1 of the first limit 312a is greater than the length H2 of Second Edge 312b.
In one embodiment, the inverted trapezoidal structure that diaphragm protuberance 312 protrudes out in main body 311, namely the first limit 312a is parallel to Second Edge 312b and the length H1 of the first limit 312a is greater than the length H2 of Second Edge 312b, and the first limit 312a is connected by hypotenuse with between Second Edge 312b.In the present embodiment, the side away from main part 311 of inverted trapezoidal structure is provided with that at least one is raised or sunken, and raised or sunken is wedge structure.In other embodiments, diaphragm protuberance 311 also can arcuately or the structure such as stepped, namely the first limit 312a can be connected by arc-shaped side or flanging etc. with between Second Edge 312b, as long as ensure that the length H1 of the first limit 312a is greater than the length H2 of Second Edge 312b, is not restricted this herein.
In the present embodiment, a blooming piece has a diaphragm protuberance.In other embodiments, the quantity of diaphragm protuberance can be odd number or even number, is not restricted this herein, preferably, the quantity of described diaphragm protuberance is even number, can be wherein two or four, is separately positioned on the relative side of two an of blooming piece or four sides.
The accepting groove 11 of opening towards the main part 311 of upper brightening piece 31 is provided with, for accommodating diaphragm protuberance 312 inside glue frame 10.Shape and the diaphragm protuberance 312 of accepting groove 11 are suitable, diaphragm protuberance 312 is contained in accepting groove 11, length H1 due to the first limit 312a is greater than the length H2 of Second Edge 312b, namely the length H1 of the first limit 312a is greater than the width D of the opening part of accepting groove 11, therefore diaphragm protuberance 312 cannot be deviate from from accepting groove 11 in the horizontal direction, thus can be spacing to upper brightening piece 31 by accepting groove 11, make brightening piece 31 in the horizontal direction cannot play, in guarantee, brightening piece 31 be not easily shifted in glue frame 10.
Other blooming pieces, following brightening piece 32 and diffusion sheet 33 also can be fixed in glue frame 10 by said structure, thus integrally improve the stability of back light module unit structure.Arbitrary blooming piece can comprise one or more diaphragm protuberance, glue frame 10 also can offer one or more accepting groove.
The main shading of anti-dazzling screen 34 and reflection ray, also can be used for fixing other diaphragms as sticky object, upper brightening piece 31 is glued at glue frame 10 by anti-dazzling screen 34.For make upper brightening piece 31 and anti-dazzling screen 34 bonding firmly, need to ensure that bonding area is enough large, but be just unfavorable for the border width reducing backlight module 1 like this.The utility model is by increasing protuberance 312, the situation that anti-dazzling screen 34 is connected with the edge of main part 311 is made relative to not establishing protuberance 312, directly increase the bond area of brightening piece 31 and anti-dazzling screen 34, make backlight module 1 frame is done narrower while, still can ensure bonding firm.
Glue frame 10 is slotted, is appreciated that this can affect the intensity of glue frame 10, causes glue frame 10 easily to damage, cannot by the drop test of module.In protuberance 312 embodiment in inverted trapezoidal structure, the waist due to inverted trapezoidal is oblique, decreases concentrating of stress, thus enhances the intensity of glue frame 10, make it not fragile.
In one embodiment, be provided with assembly clearance (not shown) between upper brightening piece 31 and lower brightening piece 32, then the degree of depth of accepting groove 11 is the height three sum of the thickness of upper brightening piece, the thickness of lower brightening piece and assembly clearance.Such design, is more conducive to the intensity ensureing glue frame 10, makes it not fragile.In the present embodiment, diffusion sheet 33 can be fixed on glue frame 10 by FPC glue.
As shown in Figure 4 in one embodiment, the light guide plate protuberance 22 that light guide plate 20 comprises light guide plate main body portion 21 and extends to glue frame 10 from light guide plate main part 21, the shape adaptation of light guide plate protuberance 22 is in accepting groove 11, can be fixed in the mode same with above-mentioned blooming piece in glue frame 10, guarantee the stability of back light module unit structure.In order to ensure the intensity of glue frame 10, light guide plate protuberance 22 is not overlapping with the protuberance of each blooming piece, namely in the present embodiment, glue frame 10 at least needs offer two accepting grooves 11.
In the present embodiment, because backlight module 100 also comprises chase 40, it is inner that glue frame 10 is embedded in chase 40.Chase 40 can play the effect of protecting glue frame 10, therefore accepting groove 11 can through glue frame 10 extend to chase 40 place (see Fig. 3), increases bond area.In another embodiment, backlight module 100 also can not comprise chase 40, in this case, as shown in Figure 5 and Figure 6, backlight module 100 also comprises the barricade 50 that at least one is arranged at the side of the blooming piece dorsad of glue frame 10, accepting groove 11 need be arranged on the limit be connected with barricade 50 of glue frame 10, avoids the intensity affecting glue frame 10.It should be noted that, the setting position of the protuberance in the present embodiment and quantity can be established according to the actual requirements, are not restricted this herein.
The structure of the utility model from assembling and the cut of blooming piece, by arranging the protuberance extended from its main part on blooming piece, wherein the length on one side away from main part of protuberance is greater than the length on one side that this protuberance is connected with main part, the accepting groove suitable with this protuberance is set on glue frame simultaneously, protuberance is made to be contained in accepting groove, thus ensure that blooming piece is not easily shifted in glue frame, improve the stability of back light module unit structure, achieve the design requirement of ultra-narrow frame simultaneously.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a backlight module, comprise glue frame and the blooming piece being embedded in described glue frame, it is characterized in that, described blooming piece comprises main part and at least one is from the outward extending diaphragm protuberance of described main part side, the angle that one is less than right angle is formed between described main part and described protuberance junction, described glue frame is provided with the accepting groove of opening towards described main part, and described protuberance is contained in described accepting groove, and the shape of described accepting groove and described protuberance suitable.
2. backlight module according to claim 1, is characterized in that, described diaphragm protuberance is in the inverted trapezoidal structure outwards protruded out from described main part.
3. backlight module according to claim 2, is characterized in that, the side away from described main part of described inverted trapezoidal structure is provided with that at least one is raised or sunken.
4. backlight module according to claim 3, is characterized in that, described raised or sunken be wedge structure.
5. backlight module according to claim 1, is characterized in that, the quantity of described diaphragm protuberance is four, is separately positioned on four sides of described blooming piece.
6. backlight module according to claim 1, it is characterized in that, described blooming piece comprises brightening piece and lower brightening piece, described upper brightening piece and described lower brightening piece all have described diaphragm protuberance, be provided with assembly clearance between described upper brightening piece and described lower brightening piece, the degree of depth of described accepting groove is the thickness of upper brightening piece, the thickness of lower brightening piece and the height sum of assembly clearance.
7. backlight module according to claim 6, is characterized in that, described backlight module also comprises the anti-dazzling screen being embedded in described glue frame, and described upper brightening piece is fixed on described glue frame by described anti-dazzling screen.
8. backlight module according to claim 1, it is characterized in that, described backlight module also comprises light guide plate, described light guide plate comprises light guide plate main body portion and at least one is from the outward extending light guide plate protuberance in described light guide plate main body portion, described glue frame is provided with the storage tank chimeric with described light guide plate protuberance, described light guide plate protuberance is consistent with described diaphragm protuberance structure, and not overlapping.
9. backlight module according to claim 1, is characterized in that, described backlight module also comprises chase, and it is inner that described glue frame is embedded in described chase.
10. backlight module according to claim 1, it is characterized in that, described backlight module also comprises the barricade that at least one is arranged at the side of the described dorsad blooming piece of described glue frame, and described accepting groove is arranged on the limit be connected with described barricade of described glue frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827581.1U CN204345547U (en) | 2014-12-23 | 2014-12-23 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827581.1U CN204345547U (en) | 2014-12-23 | 2014-12-23 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204345547U true CN204345547U (en) | 2015-05-20 |
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ID=53228812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420827581.1U Expired - Fee Related CN204345547U (en) | 2014-12-23 | 2014-12-23 | Backlight module |
Country Status (1)
| Country | Link |
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| CN (1) | CN204345547U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044982A (en) * | 2015-08-17 | 2015-11-11 | 东莞市亚通光电有限公司 | Iron frame structure of backlight module |
| CN107765477A (en) * | 2016-08-23 | 2018-03-06 | 京东方科技集团股份有限公司 | Membrane material, backlight module and display device |
| CN113917734A (en) * | 2021-10-20 | 2022-01-11 | 业成科技（成都）有限公司 | Backlight module, display device and assembling method thereof |
| CN115685622A (en) * | 2022-08-26 | 2023-02-03 | 合肥京东方光电科技有限公司 | Light source module and display device |
-
2014
- 2014-12-23 CN CN201420827581.1U patent/CN204345547U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044982A (en) * | 2015-08-17 | 2015-11-11 | 东莞市亚通光电有限公司 | Iron frame structure of backlight module |
| CN107765477A (en) * | 2016-08-23 | 2018-03-06 | 京东方科技集团股份有限公司 | Membrane material, backlight module and display device |
| CN107765477B (en) * | 2016-08-23 | 2023-10-13 | 京东方科技集团股份有限公司 | Film material, backlight module and display device |
| CN113917734A (en) * | 2021-10-20 | 2022-01-11 | 业成科技（成都）有限公司 | Backlight module, display device and assembling method thereof |
| CN115685622A (en) * | 2022-08-26 | 2023-02-03 | 合肥京东方光电科技有限公司 | Light source module and display device |
| CN115685622B (en) * | 2022-08-26 | 2024-03-01 | 合肥京东方光电科技有限公司 | Light source module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 516003 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Patentee after: CHINA DISPLAY OPTOELECTRONICS TECHNOLOGY (HUIZHOU) Co.,Ltd. Address before: 516003 Guangdong province Huizhou Jiangbei Road No. 21 Yunshan Yunshan Industrial Zone No. nine TCL Patentee before: TCL DISPLAY TECHNOLOGY (HUIZHOU) Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |