CN206147224U - Backlight module and liquid crystal display - Google Patents
Backlight module and liquid crystal display Download PDFInfo
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- CN206147224U CN206147224U CN201621189874.7U CN201621189874U CN206147224U CN 206147224 U CN206147224 U CN 206147224U CN 201621189874 U CN201621189874 U CN 201621189874U CN 206147224 U CN206147224 U CN 206147224U
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- guide plate
- light guide
- backlight module
- double
- exiting surface
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Abstract
The embodiment of the utility model discloses backlight module and liquid crystal display, wherein backlight unit includes: send out light part, two -sided light guide plate, be used for with it converts the area source to to send out the light source that light part sent to derive from first plain noodles, and from with first light -emitting facial features goes out the plain noodles to the second that sets up to be derived, first optics diaphragm group lies in the front side on first plain noodles of two -sided light guide plate, and second optics diaphragm group, lie in the second of two -sided light guide plate goes out the front side on plain noodles. The utility model discloses an adopt two -sided light guide plate, effectively reduced LCD's whole thickness, improved a light part's luminous efficacy.
Description
Technical field
This utility model is related to display technology field, and in particular to a kind of backlight module and liquid crystal display.
Background technology
With the development of Display Technique, many product neededs display image on the tow sides of display screen, double screen handss
The electronic products such as machine, double screen billboard come into vogue.And shuangping san product in the market, still by common display skill
Art is constituted, and is internally mounted with positive and negative two sets of complete regular displays.Fig. 1 is the common themselves one-sided displays of prior art
Exploded view.As shown in figure 1, common themselves one-sided displays include：Ferrum backboard 110, reflector plate 120, light guide plate 130, blooming piece
140th, plastic frame 150, buffering adhesive 160, LCDs 170 and LED lamp bar 180, wherein blooming piece 140 include brightening piece
141 and diffusion sheet 142.
Existing double-side display device has used two sets of common one side show devices, its luminous component to be arranged on front light guide plate
With at least side of rear light guide plate, such structure causes the volume of double-side display device larger, relatively costly, and illuminating part
The some light that part sends can enter the gap between front light guide plate and rear light guide plate and cause a certain degree of light loss so that send out
Light part luminous efficiency is reduced.
Utility model content
In view of this, this utility model provides a kind of backlight module and liquid crystal display, efficiently solves prior art
Present in problem, reduce the volume of the liquid crystal display of double-sided display, reduce the cost of liquid crystal display, and improve
The luminous efficiency of luminous component.
On the one hand, this utility model embodiment provides a kind of backlight module, including：
Luminous component；
Double-sided light guide plate, the light source for luminous component to be sent is converted into area source, and derives from the first exiting surface, with
And derive from the second exiting surface being oppositely arranged with the first exiting surface；
First optical diaphragm group, positioned at the front side of the first exiting surface of double-sided light guide plate；And second optical diaphragm group, position
In the front side of the second exiting surface of double-sided light guide plate.
Alternatively, luminous component is arranged at least side of double-sided light guide plate.
Alternatively, first exiting surface and the second exiting surface of double-sided light guide plate has been respectively formed on site.
Alternatively, luminous component includes luminous body and substrate, wherein, luminous body is attached on substrate by double faced adhesive tape.
Alternatively, at least one guide-lighting board mount is pasted with substrate, the guide-lighting board mount is used to support double-sided light guide plate.
Alternatively, guide-lighting board mount includes at least two rack legs, and the rack leg is located between luminous body.
Alternatively, luminous body includes LED lamp bar, and the LED lamp bar is made up of LED particle array.
Alternatively, the first optical diaphragm group includes：First brightening piece and the first diffusion sheet；And the second optical diaphragm group bag
Include the second brightening piece and the second diffusion sheet.
On the other hand, this utility model embodiment provides a kind of liquid crystal display, including：First display floater, second
Display floater, plastic frame, and any of the above-described described backlight module, wherein, plastic frame is by the first display floater, backlight module
It is packaged as a whole with the second display floater, the first display floater is attached to the first side of plastic frame, the second display floater is attached to
Second side of plastic frame, at least side of plastic frame arranges fluted, for attaching luminous component.
Alternatively, above-mentioned liquid crystal display, also includes：
First buffering adhesive, is arranged between the first side of plastic frame and the first display floater；
Second buffering adhesive, is arranged between the second side of plastic frame and the second display floater.
Backlight module and liquid crystal display that this utility model embodiment is provided, by the two-sided leaded light for going out light using two sides
Plate substitutes front light guide plate and rear light guide plate in the liquid crystal display of double-sided display, effectively reduces the liquid crystal display of double-sided display
The volume of device, reduces the cost of liquid crystal display, and avoids some light that luminous component in prior art sends and exist
The light loss caused in gap between front light guide plate and rear light guide plate, improves the luminous efficiency of luminous component.
Description of the drawings
Fig. 1 is the exploded view of the common themselves one-sided displays of prior art；
Fig. 2 is a kind of exploded view of backlight module that this utility model embodiment one is provided；
Fig. 3 is a kind of exploded view of backlight module that this utility model embodiment two is provided；
Fig. 4 is a kind of luminous component schematic diagram of backlight module that this utility model embodiment three is provided；
A kind of exploded view of liquid crystal display that Fig. 5 is provided for this utility model example IV；
A kind of profile of liquid crystal display that Fig. 6 is provided for this utility model example IV.
Specific embodiment
With reference to the accompanying drawings and examples the utility model is described in further detail.It is understood that herein
Described specific embodiment is used only for explanation this utility model, rather than to restriction of the present utility model.Further need exist for
It is bright, for the ease of description, the part related to this utility model is illustrate only in accompanying drawing and not all.
Embodiment one
Fig. 2 is a kind of exploded view of backlight module that this utility model embodiment one is provided.Backlight mould in the present embodiment
Group can apply to liquid crystal display, be the well-off brightness of liquid crystal display and the back light being evenly distributed so as to energy
Normal show image.
The backlight module that the present embodiment is provided, including：
Luminous component 210；
Double-sided light guide plate 220, for the light source that luminous component 210 sends to be converted into into area source, and from the first exiting surface
Derive, and derive from the second exiting surface being oppositely arranged with the first exiting surface；
First optical diaphragm group 230, positioned at the front side of the first exiting surface of double-sided light guide plate 220；And second blooming
Piece group 240, positioned at the front side of the second exiting surface of double-sided light guide plate 220.
Alternatively, first exiting surface and the second exiting surface of double-sided light guide plate 220 has been respectively formed on site.
Double-sided light guide plate 220 is gone out using techniques such as printed on both sides, hot pressing, radium-shine or etchings in the first exiting surface and second
Site is made on bright finish, the light that can make the vertical direction that luminous component sends is converted to the light of horizontal direction, can also make double
The overall uniform in light emission of face light guide plate 220.After light enters double-sided light guide plate 220 from incidence surface, it is irradiated on the first exiting surface
Site when, reflected light can toward all angles diffusion, then destroy conditioned reflex penetrated by the first exiting surface of double-sided light guide plate 220
Go out；After light enters double-sided light guide plate 220 from incidence surface, during the site being irradiated on the second exiting surface, reflected light can be toward respectively
Individual angular spread, then destroys conditioned reflex and is projected by the second exiting surface of double-sided light guide plate 220.By various densitys, size
The light guiding points for differing, can be such that light uniformly projects from first exiting surface and the second exiting surface of double-sided light guide plate 220, realize monolithic
Light guide plate it is two-sided go out light, it is to avoid use forward and backward two pieces of light guide plates, effectively reduce the volume of backlight module.
The double-sided display backlight module of prior art generally using front light guide plate and rear light guide plate realize it is two-sided go out light, light
Part is located at least side of front light guide plate and rear light guide plate, and such structure causes some light that luminous component sends to enter
Enter the gap between front light guide plate and rear light guide plate and cause a certain degree of light loss, reduce the light utilization efficiency of luminous component.
The backlight module that the present embodiment is provided using it is two-sided go out light double-sided light guide plate, the occurrence of effectively prevent above-mentioned, can be with
Improve the luminous efficiency of luminous component.
Second of the first optical diaphragm group 230 and double-sided light guide plate 220 on front side of first exiting surface of double-sided light guide plate 220
The second optical diaphragm group 240 on front side of exiting surface typically plays uniform light, and converges wide-angle light for works such as front observations
With.
The backlight module that this utility model embodiment is provided, by going out the double-sided light guide plate of light using two sides two-sided showing is substituted
Front light guide plate and rear light guide plate in the backlight module for showing, effectively reduces the volume of the liquid crystal display of double-sided display, reduces
The cost of liquid crystal display, and avoid some light that luminous component in prior art sends front light guide plate and after lead
The light loss caused in gap between tabula rasa, improves the luminous efficiency of luminous component.
Embodiment two
Fig. 3 is a kind of exploded view of backlight module that this utility model embodiment two is provided.On the basis of above-described embodiment
On, the backlight module that the present embodiment is provided includes：Luminous component 310, double-sided light guide plate 320, the first optical diaphragm group 330 and
Two optical diaphragm groups 340, wherein, the first optical diaphragm group 330 includes：First brightening piece 331 and the first diffusion sheet 332；And
Second optical diaphragm group 340 includes the second brightening piece 341 and the second diffusion sheet 342.
First exiting surface of double-sided light guide plate 320 and second can be gone out light by the first brightening piece 331 and the second brightening piece 341
The light that face sends to single direction is assembled, and unemployed light outside visual angle, can be circulated according to the reflection effect again of light
Utilize, and with the aggregation of optimal angle.In the present embodiment, it is preferable that the film of the first brightening piece 331 and the second brightening piece 341
Piece internal structure is rasterizing, can make the light of random direction, and through grid single direction light is changed into, and considerably increases backlight
The front face brightness of module.
First diffusion sheet 332 and the second diffusion sheet 342 generally constitute diffusion layer by scattering particless, and when there is light diffusion is passed through
Constantly can pass through in the different medium of two refractive indexs during layer, while light can occur many refractions, reflection and scattering
Phenomenon, so just causes the effect of optics diffusion.The major function of the first diffusion sheet 332 and the second diffusion sheet 342 is to provide
One uniform area source.In the present embodiment, the first diffusion sheet 332 and the second diffusion sheet 342 via first specifically for increasing
The light atomization that 331 and second brightening piece of mating plate 341 is projected, further increases uniform light degree.
Alternatively, luminous component 310 is arranged at least side of double-sided light guide plate 320.
Backlight module is divided by incoming position can be divided into straight-down negative and the big class of side entering type two.Straight-down negative is luminous component
The behind of light guide plate has been evenly distributed in it so that backlight can be uniformly communicated on whole screen, and picture detail is finer and smoother
It is true to nature.Side entering type is at least one side for luminous component being arranged on light guide plate, when allowing backlight module to light, from screen side
The light transmission light guide plate of edge transmitting is transported to the region of center Screen.
Side entering type respectively has quality with straight-down negative two ways, and side entering type emphasizes that ultra-thin energy-saving is leading, and straight-down negative emphasizes image quality
Performance is excellent, in general, both overall difference less, can select in the present embodiment using side entering type or it is straight under
Formula.
The present embodiment is illustrated by taking side entering type as an example, and the backlight module that the present embodiment is provided is in double-sided light guide plate 320
At least side arranges luminous component 310.The light source that luminous component 310 sends is converted into area source by double-sided light guide plate 320, from
One exiting surface and the second exiting surface are derived.First brightening piece 331 is random by the first exiting surface injection of double-sided light guide plate 320
The light in direction becomes the light of single direction, and to increase the front face brightness of backlight module, the first diffusion sheet 332 is by the first brightening piece
The 331 light atomizations projected, further increase uniform light degree；Second brightening piece 341 goes out light by the second of double-sided light guide plate 320
The light of the random direction that face is projected becomes the light of single direction, and to increase the front face brightness of backlight module, the second diffusion sheet 342 will
The light atomization that second brightening piece 341 is projected, further increases uniform light degree.
In the backlight module that this utility model embodiment two is provided, illuminating part is set at least side of double-sided light guide plate
Part, the light for then projecting from the first exiting surface of double-sided light guide plate and the second exiting surface respectively through brightening piece add lustre to process and
The DIFFUSION TREATMENT of diffusion sheet, finally obtains high brightness and the area source being evenly distributed.
Embodiment three
Fig. 4 is a kind of luminous component schematic diagram of backlight module that this utility model embodiment three is provided.In above-mentioned enforcement
On the basis of example, the luminous component 410 of the backlight module that the present embodiment is provided includes luminous body 411 and substrate 412, wherein lighting
Body 411 is attached on substrate 412 by double faced adhesive tape.
Luminous body 411 can operationally produce heat, if can not shed in time, can affect the work longevity of luminous body 411
Life, and too high heat may result in double-sided light guide plate because of uneven generation buckling deformation of being heated, and what the present embodiment was provided sends out
Adhered by double sided plaster, the double faced adhesive tape is used to absorb the heat that luminous body 411 sends in light part between luminous body 411 and substrate 412
Amount, and shed in time, the operating temperature that effectively prevent luminous body 411 is too high.
Alternatively, luminous body 411 includes LED lamp bar, and the LED lamp bar is made up of LED particle array.
Alternatively, at least one guide-lighting board mount 421 is pasted with substrate 412, the guide-lighting board mount 421 is used to support double
Face light guide plate.
Alternatively, guide-lighting board mount 421 includes at least two rack legs, and the rack leg is located between luminous body 411.
Guide-lighting board mount 421 can be used to support double-sided light guide plate, prevent double-sided light guide plate to be pressed onto luminous body 411, and
Double-sided light guide plate can uniformly be kept the distance between to luminous body so that the light that luminous body 411 sends can substantially lead to
Cross double-sided light guide plate to be transformed on parallel exiting surface.
Example IV
A kind of exploded view of liquid crystal display that Fig. 5 is provided for this utility model example IV.As shown in figure 5, this enforcement
The liquid crystal display that example is provided includes：First display floater 580, the second display floater 590, plastic frame 550, and it is any of the above-described
Described backlight module, including：Luminous component 510, double-sided light guide plate 520, the first optical diaphragm group 530 and the second blooming piece
Group 540.Wherein, plastic frame 550 is packaged as a whole the first display floater 580, backlight module and the second display floater 590, the
One display floater 580 is attached to the first side of plastic frame 550, and the second display floater 590 is attached to the second side of plastic frame 550.
Alternatively, above-mentioned liquid crystal display, also includes：
First buffering adhesive 560, is arranged between the first side of plastic frame 550 and the first display floater 580；
Second buffering adhesive 570, is arranged between the second side of plastic frame 550 and the second display floater 590.
It is aobvious that first buffering adhesive 560 and the second buffering adhesive 570 are respectively used to paste and fix the first display floater 580 and second
Show panel 590 on backlight module, while also functioning to the effect for buffering, during avoiding because being given a shock or impacting, damage first
The display floater 590 of display floater 580 and second.
A kind of profile of liquid crystal display that Fig. 6 is provided for this utility model example IV.At least the one of plastic frame 650
Side arranges fluted, and for attaching luminous component 610, the heat that luminous component 610 sends can be shed by plastic frame 650,
To a certain extent, can solve the problems, such as that the temperature of luminous component 610 is too high.Double-sided light guide plate 620 sends luminous component 610
Light be converted into area source, and derive from the first exiting surface and the second exiting surface respectively, through the first optical diaphragm group 630 and the
The process of two optical diaphragm groups 640, obtains high brightness and the area source being evenly distributed, and is supplied to the He of the first display floater 680
Second display floater 690；Plastic frame 650 passes through the first buffering adhesive 660 and the second buffering adhesive 670 by the first display floater 680, the back of the body
Light module and the second display floater 690 are packaged as a whole.
With typically being compared with the liquid crystal display of rear glue frame using front glue frame, the liquid crystal display that the present embodiment is provided only is adopted
With a plastic frame, the first display floater, backlight module and the second display floater are packaged as a whole so that liquid crystal display
Frame narrows, and makes liquid crystal display more attractive in appearance, lifts the broad sense in user's visual experience.
The liquid crystal display that this utility model embodiment is provided, it is two-sided by the double-sided light guide plate replacement for going out light using two sides
Front light guide plate and rear light guide plate in the liquid crystal display of display, effectively reduces the volume of the liquid crystal display of double-sided display,
Reduce the cost of liquid crystal display, and avoid some light that luminous component in prior art sends in front light guide plate and
The light loss for causing in the gap between light guide plate afterwards, improves the luminous efficiency of luminous component.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, this utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious change, readjust and substitute without departing from protection domain of the present utility model.Therefore, although by above example
This utility model is described in further detail, but this utility model is not limited only to above example, without departing from
In the case that this utility model is conceived, more other Equivalent embodiments can also be included, and scope of the present utility model is by appended
Right determine.
Claims (10)
1. a kind of backlight module, it is characterised in that include：
Luminous component；
Double-sided light guide plate, for the light source that the luminous component sends to be converted into into area source, and derives from the first exiting surface, with
And derive from the second exiting surface being oppositely arranged with first exiting surface；
First optical diaphragm group, positioned at the front side of the first exiting surface of the double-sided light guide plate；And second optical diaphragm group, position
In the front side of the second exiting surface of the double-sided light guide plate.
2. backlight module according to claim 1, it is characterised in that the luminous component is arranged on the double-sided light guide plate
At least side.
3. backlight module according to claim 1, it is characterised in that the first exiting surface of the double-sided light guide plate and second
Exiting surface has been respectively formed on site.
4. backlight module according to claim 1, it is characterised in that the luminous component includes luminous body and substrate, institute
State luminous body attached on the substrate by double faced adhesive tape.
5. backlight module according to claim 4, it is characterised in that at least one light guide plate is pasted with the substrate
Frame, the guide-lighting board mount is used to support the double-sided light guide plate.
6. backlight module according to claim 5, it is characterised in that the guide-lighting board mount includes at least two supports
Lower limb, the rack leg is located between the luminous body.
7. backlight module according to claim 4, it is characterised in that the luminous body includes LED lamp bar, the LED
Bar is made up of LED particle array.
8. backlight module according to claim 1, it is characterised in that first optical diaphragm group includes：First adds lustre to
Piece and the first diffusion sheet；And second optical diaphragm group includes the second brightening piece and the second diffusion sheet.
9. a kind of liquid crystal display, it is characterised in that include：First display floater, the second display floater, plastic frame, Yi Jiquan
Profit requires the arbitrary described backlight modules of 1-8, and the plastic frame is by first display floater, the backlight module and described the
Two display floaters are packaged as a whole, and first display floater is attached to the first side of the plastic frame, second display surface
Plate is attached to the second side of the plastic frame, and at least side of the plastic frame arranges fluted, for attaching the backlight mould
The luminous component of group.
10. liquid crystal display according to claim 9, it is characterised in that also include：
First buffering adhesive, is arranged between the first side of the plastic frame and first display floater；
Second buffering adhesive, is arranged between the second side of the plastic frame and second display floater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621189874.7U CN206147224U (en) | 2016-10-28 | 2016-10-28 | Backlight module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621189874.7U CN206147224U (en) | 2016-10-28 | 2016-10-28 | Backlight module and liquid crystal display |
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| Publication Number | Publication Date |
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| CN206147224U true CN206147224U (en) | 2017-05-03 |
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ID=58625341
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621189874.7U Active CN206147224U (en) | 2016-10-28 | 2016-10-28 | Backlight module and liquid crystal display |
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| Country | Link |
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| CN (1) | CN206147224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338861A (en) * | 2016-10-28 | 2017-01-18 | 奥英光电（苏州）有限公司 | The backlight module and liquid crystal display |
-
2016
- 2016-10-28 CN CN201621189874.7U patent/CN206147224U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338861A (en) * | 2016-10-28 | 2017-01-18 | 奥英光电（苏州）有限公司 | The backlight module and liquid crystal display |
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