CN207849013U - A kind of backlight module - Google Patents
A kind of backlight module Download PDFInfo
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- CN207849013U CN207849013U CN201820334812.3U CN201820334812U CN207849013U CN 207849013 U CN207849013 U CN 207849013U CN 201820334812 U CN201820334812 U CN 201820334812U CN 207849013 U CN207849013 U CN 207849013U
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Abstract
The utility model provides a kind of backlight module, including optical film, light guide plate and its incidence surface, reflector plate, light source led, FPC, lower frame and center；The optical film is placed in the light guide plate front, and the reflector plate is placed in the guide-lighting back, and the light source led is electrically connected with the FPC, opposite with the incidence surface；The center includes frame main body and bends downward the side frame extended to form by frame main body, and the FPC is placed on the side frame；In the junction of the frame main body and the side frame, empty slot structure is set.It includes three faces, and the left side is the side frame inner surface, and right tilted surface is the outer surface that the frame main body corresponds to side, joint face of the middle face as the left side and the right tilted surface.The overall dimensions for not increasing backlight module meet the needs of client is to backlight module product light and small；Do not increase new component, reduces process and cost；The appropriate longitudinal size for increasing FPC, improves its heat dissipation effect, promotes battery plate performance.
Description
Technical field
The utility model is related to backlight technology fields, and in particular to a kind of backlight module.
Background technology
Backlight module includes optical film 3a（30a、31a、32a）, light guide plate 1a and its incidence surface 10a, reflector plate 2a, light source
LED6a, FPC7a, lower frame 4a and center 5a；The optical film 3a（30a、31a、32a）The fronts light guide plate 1a are placed in, it is described
Reflector plate 2a is placed in the back sides the light guide plate 1a, and the light source led 6a is placed on the FPC7a, with the incidence surface 10a phases
It is right；Support constructions of the lower frame 4a as backlight module；The center 5a includes frame main body 52a and downward by frame main body 52a
Bend two side frames extended to form（50a、51a）.As shown in Figure 1.
With the development in market, requirement is proposed to the size of backlight module, such as require its thickness more and more thinner.It is protecting
Under the premise of card backlight module size does not increase even reduction, the space for placing FPC is limited, and the insufficient FPC of long width is unfavorable
In the heat dissipation of its own.
Utility model content
For problems of the prior art, the utility model provides a kind of backlight module, does not increase backlight module
Overall dimensions, meet light and small demand of the client to backlight module product；The appropriate longitudinal size for increasing FPC improves it and dissipates
Thermal effect promotes battery plate performance.
In order to solve the above-mentioned technical problem, the solution of the utility model is：
A kind of backlight module, including optical film, light guide plate and its incidence surface, reflector plate, light source led, FPC, lower frame and in
Frame；The optical film is placed in the light guide plate front, and the reflector plate is placed in the guide-lighting back, the light source led and institute
FPC electric connections are stated, the light source led is opposite with the incidence surface；Support construction of the lower frame as backlight module；It is described
Center includes frame main body and bends downward the side frame extended to form by frame main body, and the FPC is placed on the side frame；Its feature exists
In in the junction of the frame main body and side frame setting empty slot structure.
As a kind of improvement of backlight module provided by the utility model, the empty slot structure in middle glue frame is in ladder
Shape comprising three faces, the left side are the side frame inner surface, and right tilted surface is the outer surface that the frame main body corresponds to side, middle face
Joint face as the left side and the right tilted surface.
As a kind of improvement of backlight module provided by the utility model, the empty slot structure on middle iron frame is in side
Shape comprising three faces, the left side are the side frame inner surface, and the right side is the outer surface that the frame main body corresponds to side, and middle face is made
For the joint face on the left side and the right side.
As a kind of improvement of backlight module provided by the utility model, the length in face is more than described in the empty slot structure
The thickness of FPC.
As a kind of improvement of backlight module provided by the utility model, the middle part setting of the middle circle main body is hollow
Portion.
As a kind of improvement of backlight module provided by the utility model, optical diaphragm is placed in the hollow portion, it is most lower
Layer optical film is contacted with the light guide plate upper surface.
As a kind of improvement of backlight module provided by the utility model, the optical diaphragm includes diffusion from bottom to up
Film, lower bright enhancement film and upper bright enhancement film.
As a kind of improvement of backlight module provided by the utility model, light screening material is coated in the center outer surface.
Compared with prior art, the utility model has the beneficial effects that：
Empty slot structure is set on backlight module center, does not increase the overall dimensions of backlight module, meets client to backlight
The demand of module product light and small；Do not increase new component, reduces process and cost；The appropriate longitudinal size for increasing FPC, improves
Its heat dissipation effect promotes battery plate performance.
Description of the drawings
Fig. 1 is prior art back light module unit structure schematic diagram；
Fig. 2 be the utility model proposes a kind of back light module unit structure schematic diagram；
Fig. 3 be the utility model proposes a kind of empty slot structural schematic diagram；
Fig. 4 be the utility model proposes another back light module unit structure schematic diagram；
Fig. 5 be the utility model proposes another empty slot structural schematic diagram.
Specific implementation mode
The utility model provides a kind of backlight module, including optical film, light guide plate and its incidence surface, reflector plate, light source
LED, FPC, lower frame and center；The optical film is placed in the light guide plate front, and the reflector plate is placed in the guide-lighting back,
The light source led is electrically connected with the FPC, and the light source led is opposite with the incidence surface；The lower frame is as backlight module
Support construction；The center includes frame main body and bends downward the side frame extended to form by frame main body, is placed on the side frame
The FPC；In the junction of the frame main body and the side frame, empty slot structure is set.Do not increase the overall dimensions of backlight module,
Meet light and small demand of the client to backlight module product；The appropriate longitudinal size for increasing FPC, improves its heat dissipation effect, is promoted
Battery plate performance.
The utility model is described in detail with reference to the accompanying drawings and examples, the examples of the embodiments are in attached drawing
In show, in which the same or similar labels are throughly indicated same or similar elements or with the same or similar functions
Element.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, and cannot understand
For limitations of the present invention.
In the description of the present invention, it should be understood that term " length ", " thickness ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the utility model.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
Calmly ", the terms such as " setting " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, can also be electrical connection；It can be directly connected, can also may be used also indirectly connected through an intermediary
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Embodiment 1
As shown in Fig. 2, its display the utility model proposes a kind of backlight module, including optical film 3（30、31、32）, lead
Tabula rasa 1 and its incidence surface 10, reflector plate 2, light source led 6, FPC7, lower frame 4 and center 5；The optical film 3（30、31、32）It sets
In 1 front of the light guide plate, the reflector plate 2 is placed in 1 back side of the light guide plate, and the light source led 6 electrically connects with the FPC7
It connects, it is opposite with the incidence surface 10；Support construction of the lower frame 4 as backlight module；The center 5 includes frame main body 52
Extend to form two side frames are bent downward with by the frame main body 52（51、50）；In the frame main body 52 and the side frame 51
Junction be arranged an empty slot structure 8, as shown in Figure 3.The center 5 uses glue frame.
Step improvement is done, the empty slot structure 8 is trapezoidal comprising three faces, the left side 80 are the interior table of the side frame 51
Face, right tilted surface 82 are the outer surface that the frame main body 52 corresponds to side, and middle face 81 is used as the left side 80 and the right tilted surface 82
Joint face.Two side frames of the center 5（51、50）It is placed in 4 inside of the lower frame.
It is further improved, the LED6 is mounted in flexible circuit board 7, and the flexible circuit board 7 is fixed on the side
On the inner surface of frame 51, it is electrically connected with the power supply.The flexible PCB 7, i.e. FPC are with polyimides or polyester film
For a kind of printed circuit board with height reliability made of base material, there is Distribution density is high, light-weight and fold property is good etc.
Feature.
The long width of the FPC7 cannot be narrow, in case heat dissipation effect is bad.In the present embodiment, when the FPC7 is relatively narrow
When, increase its longitudinal size s3, enhances its own heat dissipation effect.The length s1 in the middle face 81 is more than the thickness of the FPC7
S2 ensures have enough spaces to place the FPC7.
Step improvement is done, the empty slot structure 8 does not limit to the frame main body 52 and the side frame 51 being arranged in the glue frame
Junction.Visual actual conditions are arranged in the junction of the frame main body 52 and the side frame 50, are provided to place other component
Space.
It is further improved, the center 5 is metal frame, and glue frame also can be used.It is highly preferred that in 5 appearance of the center
Face coats light screening material, reduces influence of the spurious rays to display effect, shading glue or foam rubber can be used.
Step improvement is done, hollow portion 53 is arranged in the middle part of the frame main body 52 of the center 5.Light is placed in the hollow portion 53
Learn diaphragm 3（30、31、32）, lowest level optical film contacts with 1 upper surface of the light guide plate.
It is further improved, the reflector plate 2 is placed in the back side of the light guide plate 1, and the light reflection that bottom surface is exposed is returned to
In the light guide plate 1, the service efficiency of light is improved.The optical film 3 is placed in the front of the light guide plate 1 comprising diffusion barrier
32, lower bright enhancement film 31 and upper bright enhancement film 30.The diffusion barrier 32 primarily serves the effect for correcting diffusion angle, makes light radiation area
Increase, but reduces the luminous intensity of unit area to a certain extent.Add lustre under described 31 and upper bright enhancement film 30 be placed in the expansion
32 side of film is dissipated, the dispersed light that light source is sent out is assembled to positive direction, to improve display brightness.
Embodiment 2
As shown in figure 4, its display the utility model proposes a kind of backlight module, including optical film 3（30、31、32）, lead
Tabula rasa 1 and its incidence surface 10, reflector plate 2, light source led 6, FPC7, lower frame 4 and center 5；The optical film 3（30、31、32）It sets
In 1 front of the light guide plate, the reflector plate 2 is placed in 1 back side of the light guide plate, and the light source led 6 electrically connects with the FPC7
It connects, it is opposite with the incidence surface 10；Support construction of the lower frame 4 as backlight module；The center 5 includes frame main body 52
Extend to form two side frames are bent downward with by the frame main body 52（51、50）, the FPC7 is placed on the side frame 51；
An empty slot structure 8 is arranged in the junction of the frame main body 52 and the side frame 51, as shown in Figure 5.The center 5 uses metal
Frame, such as iron frame.
Step improvement is done, the empty slot structure 8 is square comprising three faces, the left side 80 are the interior table of the side frame 51
Face, opposite with the lateral surface of the lower frame 4, the side frame 51 is placed in outside the lower frame 4, and there are certain gaps；It is right oblique
Face 82 is the outer surface that the frame main body 52 corresponds to side, connection of the middle face 81 as the left side 80 and the right tilted surface 82
Face.Two side frames of the center 5（51、50）It is placed in 4 outside of the lower frame.
It is further improved, the LED6 is mounted in flexible circuit board 7, and the flexible circuit board 7 is fixed on the side
On the inner surface of frame 51, it is electrically connected with the power supply.The flexible PCB 7, i.e. FPC are with polyimides or polyester film
For a kind of printed circuit board with height reliability made of base material, there is Distribution density is high, light-weight and fold property is good etc.
Feature.
The long width of the FPC7 cannot be narrow, in case heat dissipation effect is bad.In the present embodiment, when the FPC7 is relatively narrow
When, increase its longitudinal size s3, enhances its own heat dissipation effect.The length s1 in the middle face 81 is more than the thickness of the FPC7
S2 ensures have enough spaces to place the FPC7.
Step improvement is done, the empty slot structure 8 does not limit to the frame main body 52 and the side frame 51 being arranged in the iron frame
Junction.Visual actual conditions are arranged in the junction of the frame main body 52 and the side frame 50, are provided to place other component
Space.
It is further improved, the center 5 is metal frame, and glue frame also can be used.It is highly preferred that in 5 appearance of the center
Face coats light screening material, reduces influence of the spurious rays to display effect, shading glue or foam rubber can be used.
Step improvement is done, hollow portion 53 is arranged in the middle part of the frame main body 52 of the center 5.Light is placed in the hollow portion 53
Learn diaphragm 3（30、31、32）, lowest level optical film contacts with 1 upper surface of the light guide plate.
It is further improved, the reflector plate 2 is placed in the back side of the light guide plate 1, and the light reflection that bottom surface is exposed is returned to
In the light guide plate 1, the service efficiency of light is improved.The optical film 3 is placed in the front of the light guide plate 1 comprising diffusion barrier
32, lower bright enhancement film 31 and upper bright enhancement film 30.The diffusion barrier 32 primarily serves the effect for correcting diffusion angle, makes light radiation area
Increase, but reduces the luminous intensity of unit area to a certain extent.Add lustre under described 31 and upper bright enhancement film 30 be placed in the expansion
32 side of film is dissipated, the dispersed light that light source is sent out is assembled to positive direction, to improve display brightness.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (8)
1. a kind of backlight module, including optical film, light guide plate and its incidence surface, reflector plate, light source led, FPC, lower frame and center；
The optical film is placed in light guide plate front, and the reflector plate is placed in the guide-lighting back, the light source led with it is described
FPC is electrically connected, and the light source led is opposite with the incidence surface；Support construction of the lower frame as backlight module；In described
Frame includes frame main body and bends downward the side frame extended to form by frame main body, and the FPC is placed on the side frame；Its feature exists
In in the junction of the frame main body and side frame setting empty slot structure.
2. backlight module according to claim 1, which is characterized in that the empty slot structure in middle glue frame is trapezoidal,
It includes three faces, and the left side is the side frame inner surface, and right tilted surface is the outer surface that the frame main body corresponds to side, middle face conduct
The joint face on the left side and the right tilted surface.
3. backlight module according to claim 1, which is characterized in that the empty slot structure on middle iron frame is square,
It includes three faces, and the left side is the side frame inner surface, and the right side is the outer surface that the frame main body corresponds to side, and middle face is as institute
State the joint face on the left side and the right side.
4. backlight module according to claim 2 or 3, which is characterized in that the length in face is more than institute in the empty slot structure
State the thickness of FPC.
5. backlight module according to claim 1, which is characterized in that hollow portion is arranged in the middle part of the middle circle main body.
6. backlight module according to claim 5, which is characterized in that place optical diaphragm, lowest level in the hollow portion
Optical film is contacted with the light guide plate upper surface.
7. backlight module according to claim 6, which is characterized in that the optical diaphragm includes diffusion from bottom to up
Film, lower bright enhancement film and upper bright enhancement film.
8. backlight module according to claim 1, which is characterized in that coat light screening material in the center outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820334812.3U CN207849013U (en) | 2018-03-12 | 2018-03-12 | A kind of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820334812.3U CN207849013U (en) | 2018-03-12 | 2018-03-12 | A kind of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207849013U true CN207849013U (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820334812.3U Active CN207849013U (en) | 2018-03-12 | 2018-03-12 | A kind of backlight module |
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| Country | Link |
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| CN (1) | CN207849013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110782777A (en) * | 2019-10-14 | 2020-02-11 | 武汉华星光电技术有限公司 | Backlight module and display device |
-
2018
- 2018-03-12 CN CN201820334812.3U patent/CN207849013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110782777A (en) * | 2019-10-14 | 2020-02-11 | 武汉华星光电技术有限公司 | Backlight module and display device |
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