CN208752353U - Prevent the backlight module in corner and edge light leakage - Google Patents
Prevent the backlight module in corner and edge light leakage Download PDFInfo
- Publication number
- CN208752353U CN208752353U CN201821538883.1U CN201821538883U CN208752353U CN 208752353 U CN208752353 U CN 208752353U CN 201821538883 U CN201821538883 U CN 201821538883U CN 208752353 U CN208752353 U CN 208752353U
- Authority
- CN
- China
- Prior art keywords
- light
- layers
- backlight module
- glue frame
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of backlight modules for preventing corner and edge light leakage, including backboard, lamp bar, reflector, light guide plate, three layers of optical diaphragm, four side of backboard is upward folded and portion forms accommodating space in the back plate, the lamp bar of setting on one side of the accommodating space, other three side of the accommodating space is equipped with glue frame, the reflector, light guide plate, three layers of optical diaphragm are set gradually in the accommodating space from the bottom up, the marginal adhesion of the upper surface of the glue frame and three layers of optical diaphragm simultaneously supports, the upper surface of corner portion is coated with the first light-absorbing coating at the two of the glue frame, the respective corners of first light-absorbing coating and three layers of optical diaphragm are correspondingly arranged.A kind of backlight module for preventing corner and edge light leakage of the utility model, effectively avoids backlight module from the phenomenon that SC light leakage occur, improves the display quality of liquid crystal module comprehensively.
Description
Technical field
The utility model belongs to back light model setting technology field, specifically, is related to a kind of corner and edge light leakage of preventing
Backlight module.
Background technique
Backlight module is one of key component of liquid crystal display.Backlight module can provide certain bright for liquid crystal display
Degree.Existing backlight module is typically all to be made of backboard, glue frame, lamp bar, light guide plate, reflector plate, trilamellar membrane piece.Work as backlight
When mould group is lighted, light can be reflected from light guide plate, enter diaphragm, from diaphragm through superrefraction and the light reflected
Effective light-emitting surface of display screen can be directed through.
But find after study, when lighting mould group, in the left and right corner of mould group bottom light guide plate light emission side.
Since glue frame and diaphragm edge can have certain gap, some light will directly be come out from the marginal refractive of diaphragm,
It is come out through gap scatter.Shading rubber belt can not completely cover corner and edge, easily cause mould group SC light leakage
Phenomenon occurs.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of back for preventing corner and edge light leakage
Optical mode group effectively avoids backlight module from the phenomenon that SC light leakage occur, greatly improves the display quality of liquid crystal module.
The utility model aim is achieved in that a kind of backlight module for preventing corner and edge light leakage, including backboard,
Lamp bar, reflector, light guide plate, three layers of optical diaphragm, four side of backboard is upward folded and portion forms accommodating sky in the back plate
Between, other three side of the lamp bar of setting on one side of the accommodating space, the accommodating space is equipped with glue frame, and the reflector is led
Tabula rasa, three layers of optical diaphragm are set gradually in the accommodating space from the bottom up, and key is: the upper surface of the glue frame
With the marginal adhesion of three layers of optical diaphragm and support, the glue frame two at the upper surface of corner portion be coated with the
The respective corners of one light-absorbing coating, first light-absorbing coating and three layers of optical diaphragm are correspondingly arranged.
Using the above structure, the fraction that the first light-absorbing coating can will be scattered out from three layers of optical diaphragm end face edge
Optical absorption avoids light leakage phenomena occur at display screen bottom corner.
Further, the edge upper surface of above-mentioned three layers of optical diaphragm be equipped with shading rubber belt, the edge of the shading rubber belt with
Backboard bonding and by the described three layers gap block between optical diaphragm and backboard.Using the structure, pass through shading rubber belt
Further edge slot is blocked, prevents light leakage.
Further, the upper surface of above-mentioned three layers of optical diaphragm and two corners of the first light-absorbing coating face coats
There is the second light-absorbing coating.Using the structure, light that the second light-absorbing coating can will be scattered from three layers of optical diaphragm end face edge
Further sponge, and further increases leakproof light effect.
Preferably, above-mentioned first light-absorbing coating and the second light-absorbing coating are scattering grain black and with high absorptance
Sub- material is made.Using the structure, extinction effect can effectively improve.
Further, the side of light guide plate described in above-mentioned glue frame face is equipped with inclined reflecting surface；The reflecting surface of the glue frame
Obliquely setting and with the bottom surface of backboard angle at an acute angle.Original rectangular item of glue frame, reflector plate and light-guide edge
The light scattered is reflected by glue frame, and backlight module or so side, light emission side is caused light leakage phenomena easily occur, and is used above-mentioned
Reflecting surface, reaching reflects light, be not refracted to light-emitting surface, to solve the phenomenon that three side light leakage of backlight module,
Further, the effect of backlight module entirety light leakage is improved.
Preferably, the reflecting surface of above-mentioned glue frame is equipped with grey reflecting coating.Since the glue frame side of white or black is to light
When line reflection, it may appear that hickie or black patch, and the structure is used, the reflecting coating of grey is to light homogenous diffusion, even if small portion
The phenomenon that hickie or black patch will not occur in light splitter light leakage.
The utility model has the advantages that
A kind of backlight module for preventing corner and edge light leakage of the utility model, effectively avoids backlight module from SC leakage occur
The phenomenon that light and edge light leakage, improves the display quality of liquid crystal module comprehensively.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
The A-A turnover cross-sectional view that Fig. 2 is Fig. 1；
Description of symbols: 1 it is backboard, 2 is lamp bar, 3 is reflector, 4 is light guide plate, 5 is that three layers of optical diaphragm, 6 are
Glue frame, 7 be the first light-absorbing coating, 8 be shading rubber belt, 9 be the second light-absorbing coating, 10 be reflecting coating, 11 be panel.
Specific embodiment
Below with reference to embodiment and attached drawing, the utility model is described in further detail.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", etc. instructions side
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.
It is as illustrated in fig. 1 and 2: a kind of backlight module preventing corner and edge light leakage, by backboard 1, lamp bar 2, reflector 3,
4, three layers of optical diaphragm 5 of light guide plate, panel 11 form, and 1 four side of backboard is upward folded and accommodating is formed in the middle part of the backboard 1
Other three side in space, the setting on one side of the accommodating space lamp bar 2, the accommodating space is equipped with glue frame 6, the reflector
3,4, three layers of optical diaphragm 5, panel of light guide plate are set gradually in the accommodating space from the bottom up, the upper table of the glue frame 6
The marginal adhesion of face and three layers of optical diaphragm 5 simultaneously supports, the glue frame 6 two at corner portion upper surface coating
There is the first light-absorbing coating 7, the respective corners of first light-absorbing coating 7 and three layers of optical diaphragm 5 are correspondingly arranged.Three layers of light
The edge upper surface for learning diaphragm 5 is equipped with shading rubber belt 8, and the edge of the shading rubber belt 8 is Nian Jie with the backboard 1 and by described three
Gap block between layer optical diaphragm 5 and backboard 1, the edge of the panel 11 are Nian Jie with the shading rubber belt 8.Such as Fig. 2 institute
Show: the upper surface of three layers of optical diaphragm 5 and two corners of 7 face of the first light-absorbing coating is applied coated with the second extinction
Layer 9.First light-absorbing coating 7 and the second light-absorbing coating 9 are scattering particles material system black and with high absorptance
At.As shown in Figure 2: the side of light guide plate 4 described in 6 face of glue frame is equipped with inclined reflecting surface；The reflecting surface of the glue frame 6 is oblique
Bottom surface angle at an acute angle down-set and with the backboard 1.The reflecting surface of the glue frame 6 is equipped with grey reflecting coating 10.
Finally, it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field
Art personnel are under the enlightenment of the utility model, under the premise of without prejudice to the utility model aims and claim, can make
Multiple similar expressions, such transformation are each fallen within the protection scope of the utility model.
Claims (6)
1. a kind of backlight module for preventing corner and edge light leakage, including backboard (1), lamp bar (2), reflector (3), light guide plate
(4), three layers of optical diaphragm (5), (1) four side of backboard is upward folded and accommodating space is formed in the middle part of the backboard (1), described
Other three side of the lamp bar of setting on one side (2) of accommodating space, the accommodating space is equipped with glue frame (6), the reflector (3),
Light guide plate (4), three layers of optical diaphragm (5) set gradually in the accommodating space from the bottom up, it is characterised in that: the glue frame
(6) marginal adhesion of upper surface and three layers of optical diaphragm (5) simultaneously supports, the glue frame (6) two at corner
The upper surface in portion is coated with the first light-absorbing coating (7), and first light-absorbing coating (7) is corresponding to three layers of optical diaphragm (5)
Angle is correspondingly arranged.
2. the backlight module according to claim 1 for preventing corner and edge light leakage, it is characterised in that: three layers of optics
The edge upper surface of diaphragm (5) is equipped with shading rubber belt (8), and the edge of the shading rubber belt (8) is Nian Jie with the backboard (1) and by institute
State the gap block between three layers of optical diaphragm (5) and backboard (1).
3. the backlight module according to claim 1 for preventing corner and edge light leakage, it is characterised in that: three layers of optics
The upper surface of diaphragm (5) and two corners of the first light-absorbing coating (7) face is coated with the second light-absorbing coating (9).
4. the backlight module according to claim 3 for preventing corner and edge light leakage, it is characterised in that: first extinction
Coating (7) and the second light-absorbing coating (9) be black and be made with the scattering particles material of high absorptance.
5. the backlight module according to claim 1 or 2 or 3 or 4 for preventing corner and edge light leakage, it is characterised in that: institute
The side for stating light guide plate (4) described in glue frame (6) face is equipped with inclined reflecting surface；The reflecting surface of the glue frame (6) is arranged obliquely
And the bottom surface angle at an acute angle with the backboard (1).
6. the backlight module according to claim 5 for preventing corner and edge light leakage, it is characterised in that: the glue frame (6)
Reflecting surface be equipped with grey reflecting coating (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821538883.1U CN208752353U (en) | 2018-09-19 | 2018-09-19 | Prevent the backlight module in corner and edge light leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821538883.1U CN208752353U (en) | 2018-09-19 | 2018-09-19 | Prevent the backlight module in corner and edge light leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208752353U true CN208752353U (en) | 2019-04-16 |
Family
ID=66084891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821538883.1U Active CN208752353U (en) | 2018-09-19 | 2018-09-19 | Prevent the backlight module in corner and edge light leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208752353U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082946A (en) * | 2019-05-29 | 2019-08-02 | 重庆翰博光电有限公司 | A kind of backboard, backlight module and the display module of no glue frame backlight module |
| CN112255836A (en) * | 2020-11-03 | 2021-01-22 | 重庆翰博光电有限公司 | Side light leakage backlight module suitable for super narrow frame solution |
| CN113504677A (en) * | 2021-08-09 | 2021-10-15 | 重庆翰博光电有限公司 | Backlight module for preventing mini LED backlight periphery from bluing |
| WO2022052735A1 (en) * | 2020-09-11 | 2022-03-17 | 京东方科技集团股份有限公司 | Display support structure and display device |
-
2018
- 2018-09-19 CN CN201821538883.1U patent/CN208752353U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082946A (en) * | 2019-05-29 | 2019-08-02 | 重庆翰博光电有限公司 | A kind of backboard, backlight module and the display module of no glue frame backlight module |
| WO2022052735A1 (en) * | 2020-09-11 | 2022-03-17 | 京东方科技集团股份有限公司 | Display support structure and display device |
| CN112255836A (en) * | 2020-11-03 | 2021-01-22 | 重庆翰博光电有限公司 | Side light leakage backlight module suitable for super narrow frame solution |
| CN113504677A (en) * | 2021-08-09 | 2021-10-15 | 重庆翰博光电有限公司 | Backlight module for preventing mini LED backlight periphery from bluing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208752353U (en) | Prevent the backlight module in corner and edge light leakage | |
| US8573826B2 (en) | Side-light type light guide plate assembly and backlight module | |
| CN210155481U (en) | Backlight module, optical fingerprint system under screen, display module and electronic device | |
| CN203336480U (en) | Optical membrane, backlight module and display device | |
| TWI477856B (en) | Display device | |
| CN104064118A (en) | Display device and front light module thereof | |
| CN204213723U (en) | A kind of backlight module and display | |
| CN101975371A (en) | Lower diffusion film, backlight module and display | |
| CN106154398A (en) | A kind of side entrance back module and display device | |
| US11300829B2 (en) | Optical sheet, backlight module and display device | |
| KR20120067550A (en) | Backlight unit and liquid crystal display using the same | |
| CN106647001B (en) | Liquid crystal display panel and liquid crystal display | |
| US20220113591A1 (en) | Diffusion plate and backlight module | |
| CN109557719B (en) | Direct type zero OD backlight structure with semi-reflective and semi-transparent light guide plate | |
| TWM296382U (en) | Plastic frame structure improvement for back light module | |
| KR102621126B1 (en) | Liquid crystal display device | |
| CN102207278A (en) | Light focusing sheet and backlight module | |
| CN109870843A (en) | Reflective LCD device | |
| CN209514257U (en) | The backlight module of light leakage | |
| KR20110039807A (en) | Composite sheet for lcd, and backlight unit using the same | |
| CN204314573U (en) | Backlight module | |
| CN106405721A (en) | Light guide plate and backlight module group | |
| CN101126862A (en) | Side light-on type backlight subassembly | |
| KR101327852B1 (en) | Backlight unit | |
| CN103915039A (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |