CN209086617U - A kind of LCD backlight mould group - Google Patents
A kind of LCD backlight mould group Download PDFInfo
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- CN209086617U CN209086617U CN201821977699.7U CN201821977699U CN209086617U CN 209086617 U CN209086617 U CN 209086617U CN 201821977699 U CN201821977699 U CN 201821977699U CN 209086617 U CN209086617 U CN 209086617U
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- radiator
- guide plate
- fixedly connected
- light guide
- mould group
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Abstract
The utility model discloses a kind of LCD backlight mould group, backlight module is side entrance back module, backlight module includes light guide plate, backboard, LED light bar and radiator, radiator is separated into main radiator and time radiator, light guide plate fixed in position is in backboard front, and in backboard reverse side, LED light bar is fixed on time radiator main radiator fixed in position, secondary radiator is fixedly connected with main radiator, so as to be adapted to contraposition between light guide plate and LED light bar.The utility model LCD backlight mould group uses the heat spreader structures of separate type, main radiator is fixedly connected with backboard, light guide plate is also fixedly connected with backlight, LED light bar is installed on time radiator, secondary radiator is fixedly connected with main radiator again, such structure ensures LED center exit positions fixation corresponding with the center of the incidence surface of light guide plate side in LED light bar, can be effectively improved light leakage, luminance shortage or non-uniform problem.
Description
Technical field
The utility model relates to technical field of LED display more particularly to a kind of LCD backlight mould groups.
Background technique
Currently, radiator is often integrally formed in the side entrance back module design of liquid crystal display backlight module, Gu
There is no due to the LED light bar on radiator and between light guide plate relatively-stationary positioning relation, backlight module is in assembling process
Guarantee the coupled relation between LED light bar and light guide plate mainly by component control and assembly technology, this is to each component and dress
It is relatively high with technique requirement, and component and assembly technology are not easy to control, therefore, LED light bar and light guide plate in assembling process
Between be easy to appear coupling dislocation so that there is light leakage in backlight module, so cause liquid crystal display die set backlight illumination deficiency and
Unevenly, there is unstable phenomenon in product, has seriously affected product quality.
Therefore, the existing technology needs to be improved and developed.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the utility model are to solve prior art defect and deficiency, are proposed
A kind of LCD backlight mould group for improving structure, radiator are designed using separate mode, and main radiator and backboard, light guide plate are solid
Fixed, LED light bar is fixed with this radiator, then secondary radiator is fixedly connected with main radiator, so that the LED in LED light bar
Center exit positions are adapted to contraposition with the center of the incidence surface of light guide plate side, ensure that between LED light bar and light guide plate
Coupling, avoid the leakage problem of backlight module.
The utility model technical scheme applied to solve the technical problem is as follows:
A kind of LCD backlight mould group, the backlight module are side entrance back module, and the backlight module includes leading
Tabula rasa, backboard, LED light bar and radiator, the radiator are separated into main radiator and time radiator, the fixed peace of the light guide plate
It is placed in the backboard front, in the backboard reverse side, the LED light bar is fixed on described time and dissipates the main radiator fixed in position
On hot device, the secondary radiator is fixedly connected with the main radiator, so as to be adapted between the light guide plate and the LED light bar
Contraposition.
Technical solution as a further improvement, the secondary radiator connect by the way that end and the main radiator end are fixed
It connects, so as to be adapted to contraposition between the light guide plate and the LED light bar.
The length direction surface of technical solution as a further improvement, the secondary radiator is provided with protruding bar, institute
The length direction for stating main radiator corresponds to the surface setting groove of the secondary radiator, the secondary radiator and the main radiator
When being fixedly connected, fixation is adapted to groove by protruding bar, further stablize the secondary radiator and the main radiator it
Between be fixedly connected.
Technical solution as a further improvement, the secondary radiator are provided with screw hole, the master every a distance
Radiator corresponds to the secondary radiator and a distance is also provided with screw hole, so that the secondary radiator and the main heat dissipation
Device assembles screw by screw hole and is fixedly connected.
Technical solution as a further improvement, in the embodiment above, the secondary radiator not with the main radiator
The length sides being fixedly connected are provided with extension, which is used to limit the edge for the light guide plate that contraposition is adapted to LED light bar.
With prior art liquid crystal display side entrance back module using integrally formed radiator may cause light guide plate with
LED light bar can not efficient coupling it is different, the utility model LCD backlight mould group uses the heat spreader structures of separate type, will lead
Radiator is fixedly connected with backboard, and light guide plate is also fixedly connected with backlight, and LED light bar is installed on time radiator, secondary radiator
It is fixedly connected again with main radiator, such structure ensures entering for LED center exit positions and light guide plate side in LED light bar
The center of smooth surface is corresponding to be fixed, and light leakage, luminance shortage or non-uniform problem can be effectively improved.Meanwhile secondary radiator
The length sides setting extension not connecting with main radiator comes out, which can be as the effect limitation light guide plate of press strip
Edge also effectively prevents the light leakage in gap between light guide plate and LED light bar.The design of extension can also save on secondary radiator
The strip bracket for needing to suppress light guide plate designed in prior art side entrance back module is saved, reduces costs, simplifies
Structure.
Detailed description of the invention
Fig. 1 is a kind of axis side structure schematic illustration of LCD backlight mould group preferred embodiment of the utility model.
Fig. 2 is the structural principle signal under a kind of LCD backlight mould group preferred embodiment decomposing state of the utility model
Figure.
Fig. 3 is a kind of the main structure of the schematic diagram of LCD backlight mould group preferred embodiment of the utility model.
Fig. 4 is the section enlarged structure schematic illustration in Fig. 3 at A-A.
Fig. 5 is the section enlarged structure schematic illustration in Fig. 3 at B-B.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, clear, develop simultaneously implementation referring to the drawings
The utility model is further described in example.It should be appreciated that specific embodiment described herein is only used to explain this reality
With novel, it is not used to limit the utility model.
Currently, LCD device backlight mould group mainly includes two kinds of backlight modes of straight-down negative and side entering type, side entering type back
The problem of optical mode group is used by most of ultrathin liquid crystal display device, but side entrance back module is easy to appear light leakage,
And due to the presence of light leakage, light guide plate enters deficiency in light quantity, it will backlight illumination deficiency, non-uniform phenomenon is caused to occur.
The LCD device backlight mould group of the utility model is mainly used in liquid crystal TV set, certainly, other liquid crystal display devices
The backlight module used is also within the protection category of the utility model, and the utility model is with no restrictions.
The utility model is used using the radiator for the mode that is integrally formed is separated into two radiators, is dissipated by two
The fixed position relative of hot device realizes the good coupling relationship in light guide plate and LED light bar between LED.Fig. 1 shows practical
The axis side structure schematic illustration of novel liquid crystal display backlight mould group preferred embodiment, in order to more preferably illustrate assembling structure, Fig. 1 shows
The assembling structure relationship of liquid crystal display panel cell20 is gone out, liquid crystal display panel cell20 is installed on LCD backlight mould
The upper surface of group 10 constitutes liquid crystal display device.
In order to better illustrate the utility model LCD backlight mould group structure, Fig. 2,3,4 and 5 show this reality
With the specific structure of novel liquid crystal display backlight mould group preferred embodiment.Wherein, Fig. 2 is to show a kind of liquid crystal of the utility model
Principle schematic diagram under display backlight mould group preferred embodiment decomposing state；Fig. 3 shows a kind of liquid crystal of the utility model
The main structure of the schematic diagram of display backlight mould group preferred embodiment.Fig. 4 is then that the section enlarged structure in Fig. 3 at A-A is former
Schematic diagram is managed, Fig. 5 is then the section enlarged structure schematic illustration in Fig. 3 at B-B.As Fig. 2 the utility model liquid crystal display is carried on the back
Shown in the principle schematic diagram of the decomposing state of optical mode group preferred embodiment, the utility model LCD backlight mould group includes
Light guide plate 11, backboard 12, LED light bar 14 and radiator, the radiator is separated into main radiator 13 and time radiator 15, described
For 11 fixed in position of light guide plate in 12 front of backboard, 13 fixed in position of main radiator is described in 12 reverse side of backboard
LED light bar 14 is fixed on the secondary radiator 15, and the secondary radiator 15 is fixedly connected with the main radiator 13, so that institute
It states and is adapted to contraposition between light guide plate 11 and the LED light bar 14.In side entrance back module, backboard often can be used as center
Component uses, and light guide plate 11 is fixed on to the front of backboard, and for side entrance back module, the front of backboard is towards liquid
The one side of LCD panel cell20, after light guide plate is fixed on backboard front, main radiator 13 can then be fixed on backboard 12
Lower part, in this way, the heat dissipation area of backlight can be greatly increased by being fixed on backboard as main radiator.LED light bar is then fixed on
On secondary radiator 15, it is fixedly connected by both ends with main radiator 13, so that the center of the LED in LED light bar 14 goes out light position
It sets corresponding with the center of 11 side of light guide plate, it is ensured that good coupled relation prevents backlight module light leakage.Certainly, as
Side entrance back module, the utility model LCD backlight mould group preferred embodiment illustrate only the mode of bottom side entering type,
The embodiment principle of side is identical as the mode that the bottom side enters, and implementation does not repeat herein.
In conjunction with Fig. 3,4 and 5 again specifically from the point of view of the utility model LCD backlight mould group preferred embodiment structure.As
Further improved technology scheme, the secondary radiator 15 can be fixedly connected by end with 13 end of main radiator, with
Make to be adapted to contraposition between the light guide plate 11 and the LED light bar 14.
Technical solution as a further improvement, as shown in figure 4, the cutting plane position in Fig. 4 is cuing open at A-A in Fig. 3
The enlarged drawing of section, the length direction surface of the secondary radiator 15 are provided with protruding bar 152, the length of the main radiator 13
The surface setting groove that degree direction corresponds to the secondary radiator 15 is arranged on secondary radiator since Fig. 4 is the schematic diagram after assembly
Protruding bar insertion main radiator on the groove that is correspondingly arranged, only illustrate the protruding bar 152 on time radiator 15, it is described
Secondary heat dissipation, 15 with the main radiator 13 when being fixedly connected, and fixation is adapted to groove by protruding bar, further stablize described in
Being fixedly connected between secondary radiator and the main radiator.
Technical solution as a further improvement, as shown in figure 5, the cutting plane position in Fig. 5 is cutd open for what B-B in Fig. 3 went out
The enlarged drawing of section, in Fig. 3 the slice location of B-B be main radiator and time radiator be fixedly connected set by screw hole location,
Under the preferred embodiment, the secondary radiator 15 is provided with screw hole 153, the corresponding institute of the main radiator 13 every a distance
State time radiator 15 and a distance be also provided with screw hole 153, since Fig. 5 is the schematic diagram after assembly, main radiator and
Secondary radiator is communicated every the connecting screw hole that a distance is arranged, and only illustrates a screw hole 153.The secondary radiator with
The main radiator assembles screw by screw hole and is fixedly connected with the company further consolidated between main radiator and secondary radiator
It connects.
In addition, alternatively preferred embodiment, as shown in Figure 4 and Figure 5, in the embodiment above, the secondary radiator
15 length sides not being fixedly connected with the main radiator 13 are provided with extension 151, and the extension 151 is for limitation and LED
The edge of the light guide plate of lamp bar adaptation contraposition.The extension can be as the edge of the effect limitation light guide plate of press strip, also effectively
Prevent the light leakage in gap between light guide plate and LED light bar.The design of extension can also save the prior art on secondary radiator
The strip bracket for needing to suppress light guide plate designed in side entrance back module, reduces costs, has simplified structure.
It should be understood that the above is only the preferred embodiment of the utility model only, it is not sufficient to limit this reality
With novel technical solution, for those of ordinary skills, within the spirit and principles of the present invention, Ke Yigen
Increased and decreased according to above description, replaced, converted or is improved, and all these increases and decreases, replacement, transformation or improved technical side
Case all should belong to the protection scope of the appended claims for the utility model.
Claims (5)
1. a kind of LCD backlight mould group, the backlight module is side entrance back module, which is characterized in that the backlight mould
Group includes light guide plate, backboard, LED light bar and radiator, and the radiator is separated into main radiator and time radiator, the leaded light
Plate fixed in position is fixed in the backboard front, the main radiator fixed in position in the backboard reverse side, the LED light bar
On the secondary radiator, the secondary radiator is fixedly connected with the main radiator, and is pressed against the light guide plate, so that described
Contraposition is adapted between light guide plate and the LED light bar.
2. a kind of LCD backlight mould group according to claim 1, which is characterized in that the secondary radiator passes through end
It is fixedly connected with the main radiator end, so as to be adapted to contraposition between the light guide plate and the LED light bar.
3. a kind of LCD backlight mould group according to claim 1, which is characterized in that the length side of the secondary radiator
Surface is provided with protruding bar, the length direction of the main radiator corresponds to the surface setting groove of the secondary radiator, institute
When stating time radiator and being fixedly connected with the main radiator, fixation is adapted to groove by protruding bar, described in further stabilization
Being fixedly connected between secondary radiator and the main radiator.
4. a kind of LCD backlight mould group according to any one of claims 1 to 3, which is characterized in that described heat dissipation
Device is provided with screw hole every a distance, and the main radiator corresponds to the secondary radiator and a distance is also provided with spiral shell
Wire hole is fixedly connected so that the secondary radiator assembles screw by screw hole with the main radiator.
5. a kind of LCD backlight mould group according to claim 3, which is characterized in that the secondary radiator not with it is described
The length sides that main radiator is fixedly connected are provided with extension, which is used to limit the leaded light for being adapted to contraposition with LED light bar
The edge of plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821977699.7U CN209086617U (en) | 2018-11-28 | 2018-11-28 | A kind of LCD backlight mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821977699.7U CN209086617U (en) | 2018-11-28 | 2018-11-28 | A kind of LCD backlight mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209086617U true CN209086617U (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821977699.7U Active CN209086617U (en) | 2018-11-28 | 2018-11-28 | A kind of LCD backlight mould group |
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| CN (1) | CN209086617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442376A (en) * | 2022-02-22 | 2022-05-06 | 四川长虹电器股份有限公司 | Side-entering type ultra-narrow fourth side liquid crystal module |
-
2018
- 2018-11-28 CN CN201821977699.7U patent/CN209086617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442376A (en) * | 2022-02-22 | 2022-05-06 | 四川长虹电器股份有限公司 | Side-entering type ultra-narrow fourth side liquid crystal module |
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