CN208795981U - Backlight module, liquid crystal module and LCD TV - Google Patents
Backlight module, liquid crystal module and LCD TV Download PDFInfo
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- CN208795981U CN208795981U CN201821813174.XU CN201821813174U CN208795981U CN 208795981 U CN208795981 U CN 208795981U CN 201821813174 U CN201821813174 U CN 201821813174U CN 208795981 U CN208795981 U CN 208795981U
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- backboard
- guide plate
- light guide
- backlight module
- light
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Abstract
The utility model discloses a kind of backlight module, liquid crystal module and LCD TV using it, wherein backlight module, comprising: backboard, the backboard include the reflecting surface for reflected light；Light guide plate, the light guide plate include bottom surface and side, and the bottom surface of the light guide plate is connected to the reflecting surface of the backboard；And light source, it is set to the backboard, and be arranged relative to the side of the light guide plate.Technical solutions of the utility model can realize that light reflects using backboard.
Description
Technical field
The utility model relates to technical field of liquid crystal display, in particular to a kind of backlight module, liquid crystal module and liquid crystal electricity
Depending on.
Background technique
Liquid crystal display device is a kind of display device that image is shown using the characteristic of liquid crystal material, has low driving electricity
The advantages that pressing and be low in energy consumption.The liquid crystal module of the liquid crystal display devices such as liquid crystal display, LCD TV generally comprises backlight module
And liquid-crystalline glasses, wherein backlight module includes center and backboard, and center connect to form accommodating cavity with backboard, is equipped in accommodating cavity
Light source, reflecting paper light guide plate and optical diaphragm etc..
In current LCD TV industry, for side entering type type, in order to meet optics visual effect, light guide plate and backboard it
Between reflecting paper is set so that more light is projected from the light-emitting surface of light guide plate, to provide the backlight as liquid crystal display panel
Light utilization efficiency is improved in source.But since reflecting paper being arranged on backboard, the assembling procedure of LCD TV is increased, its production is caused
Efficiency is lower.
Utility model content
The main purpose of the utility model is to provide a kind of backlight module, it is intended to realize that light reflects using backboard.
To achieve the above object, the utility model proposes a kind of backlight module, comprising:
Backboard, the backboard include the reflecting surface for reflected light；
Light guide plate, the light guide plate include bottom surface and side, and the bottom surface of the light guide plate is connected to the reflection of the backboard
Face；And
Light source is arranged set on the reflecting surface of the backboard, and relative to the side of the light guide plate.
Optionally, the reflectivity of the reflecting surface is more than or equal to 96.2%；
And/or the glossiness of the reflecting surface is A, 15GU≤A≤35GU.
Optionally, the material of the backboard is by ceramics.
Optionally, the backboard is equipped with accommodating cavity, and the backboard is equipped with the opening being connected to the accommodating cavity, the accommodating
Chamber and the opposite surface that is open are the reflecting surface, and the accommodating cavity further includes the side wall around reflecting surface setting
Face, the light guide plate and the light source are set in the accommodating cavity.
Optionally, the side wall surface is reflective surface.
Optionally, the light guide plate is equipped with optical diaphragm away from a surface of the reflecting surface.
Optionally, the optical diaphragm includes the diffusion sheet set on the light guide plate, and is deviated from set on the diffusion sheet
The blast piece on one surface of light guide plate.
Optionally, the backlight module further includes center, and the center is set to the backboard, and sets around the light guide plate
It sets, the light source is set between the center and the light guide plate.
The utility model also proposes that a kind of liquid crystal module, including liquid crystal display panel and backlight module, the liquid crystal display panel are set to
The backboard, and it is located at the side that the light guide plate deviates from the backboard.Wherein, backlight module, comprising:
Backboard, the backboard include the reflecting surface for reflected light；
Light guide plate, set on the reflecting surface of the backboard；With
Light source is arranged set on the reflecting surface of the backboard, and with the light guide plate interval.
The utility model also proposes a kind of LCD TV, including liquid crystal module.Wherein, liquid crystal module include liquid crystal display panel and
Backlight module, the liquid crystal display panel are set to the backboard, and are located at the side that the light guide plate deviates from the backboard.
Technological means of the technical solutions of the utility model by using backboard setting for the reflecting surface of reflected light, can will lead
Tabula rasa is directly arranged in the reflecting surface of backboard, avoids and reflecting paper is arranged in backlight module, can reduce the assembling of backlight module
Process.
In production and assembly, light guide plate is directly set to backboard, light source electrified light emitting on backboard, light is from leaded light
The side surface of plate enters in light guide plate, and light is spread in light guide plate, the light that the reflecting surface of backboard exposes light guide plate from there
It is reflected back in light guide plate, projects light from the surface away from backboard of light guide plate, realize the uniformly light-emitting of light guide plate.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model backlight module；
Fig. 2 is the structural schematic diagram of one embodiment of the utility model liquid crystal module.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Liquid crystal module | 10 | Liquid crystal display panel |
| 20 | Backlight module | 21 | Backboard |
| 211 | Accommodating cavity | 211a | Reflecting surface |
| 211b | Side wall surface | 22 | Light guide plate |
| 23 | Optical diaphragm | 231 | Diffusion sheet |
| 232 | Blast piece | 24 | Light source |
| 241 | Pcb board | 242 | Lamp |
| 25 | Envelope screen glue | 26 | Glue frame |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, it can also
To be electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment
Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution
It will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not in the utility model
It is required that protection scope within.
The utility model proposes a kind of backlight modules 20, as shown in Figure 1, realizing that light reflects using backboard 21, reduce backlight
The assembling procedure of mould group 20.
In the utility model embodiment, which includes: backboard 21, and backboard 21 includes for the anti-of reflected light
Penetrate face 211a；Light guide plate 22, light guide plate 22 include bottom surface and side, and the bottom surface of light guide plate is connected to the reflecting surface of backboard 21
211a；And light source 24, it is set to backboard 21, and the side of opposite light guide plate 22 is arranged.
In order to improve backboard 21 reflecting surface 211a light reflection efficiency, backboard 21 or reflecting surface 211a select reflectivity
Higher material, or increase the glossiness of reflecting surface 211a, to improve the utilization rate of light.Light guide plate 22 in the present embodiment
Using rectangular configuration, light source 24 can be set at the one side of light guide plate 22, can also be according to the demand in practical application, by light source
24 are set to two or more lateral position of light guide plate 22.Wherein, the material of light guide plate 22 can be the poly- carbon of optical grade
Acid esters (PC) or PMMA.Certainly, in practical applications, light guide plate 22 can also be designed as the shapes such as circle, prismatic according to demand
Shape.
Light source 24 in the present embodiment includes pcb board 241 and the lamp 242 on pcb board 241, and pcb board 241 is set to back
Plate 21.For the ease of the use of backlight module 20, glue frame 26 is additionally provided on backboard 21, glue frame 26 is set to backboard 21, and is located at
Position corresponding with light source 24, the connection of backlight module 20 and liquid crystal display panel 10 when in order to be assembled into liquid crystal module 100.Glue frame
Connection can be realized using buckle, screw either binder between 26 and backboard 21.
Due to the stroke of light guide plate 22 be influenced by temperature it is bigger, for the ease of lightguide plate fixing 22, the present embodiment
In, multiple rubber blocks are set on backboard 21, and rubber block and the interval of light source 24 are arranged, week of multiple rubber blocks around light guide plate 22
It is abutted to setting, and with the side surface of light guide plate 22, to realize the fixation of light guide plate 22.Appearance is affected by temperature in light guide plate 22
When expanding with heat and contract with cold, rubber block can follow light guide plate 22 to do corresponding elastic telescopic using the special part of its elasticity, guarantee to compress guide-lighting
Plate 22.
Technological means of the technical solutions of the utility model by using the setting of backboard 21 for the reflecting surface 211a of reflected light,
Light guide plate 22 can be directly arranged in the reflecting surface 211a of backboard 21, avoid and reflecting paper is set in backlight module 20, can subtract
The assembling procedure of few backlight module 20.
In production and assembly, light guide plate 22 is directly set to backboard 21,24 electrified light emitting of light source on backboard 21, light
Line enters in light guide plate 22 from the side surface of light guide plate 22, and light is spread in light guide plate 22, and the reflecting surface 211a of backboard 21 will
The light that light guide plate 22 exposes from there is reflected back in light guide plate 22, makes light penetrating away from a surface of backboard 21 from light guide plate 22
Out, the uniformly light-emitting of light guide plate 22 is realized.
In an embodiment of the utility model, the reflectivity of reflecting surface 211a is more than or equal to 96.2%, so that back
The reflecting surface 211a of plate 21 has preferable reflecting effect.In practical applications, the lower material of surface roughness can be selected
As backboard 21, reflecting surface 211a can also be only processed, mirror finish processing such as is carried out to reflecting surface 211a, makes reflecting surface 211a
Reflectivity be more than or equal to 96.2%.The material of backboard 21 can select metal, glass either ceramics, and metal material can
With aluminium perhaps stainless steel etc. and metal or its heat-conducting effect of the backboard 21 of ceramic material are also relatively good, can be improved back
The heat dissipation performance of optical mode group 20.
In the another embodiment of the utility model, the glossiness of reflecting surface 211a is A, 15GU≤A≤35GU.It can mention
High reflection face 211a reduces influence of the object intrinsic colour to reflected light to the mirror-reflection ability of light, further to mention
The light utilization efficiency of high backlight module 20.In practical applications, the glossiness of reflecting surface 211a can select 15GU, 20GU, 25GU,
30GU or 35GU etc..
In order to meet the requirement in above-described embodiment to reflecting surface 211a, in an embodiment of the utility model, backboard
21 is by the integrally formed structures of ceramic material.Its integrally formed mode of dorsulum 21 can be injection molding, injection molding
The advantages of with finished product is obtained with low consumption in the case where guaranteeing complex-shaped.And have finished size precision high, be not necessarily to or
Person need to only carry out a small amount of machining, it is easy to accomplish the characteristics of mechanical automation.It can be convenient for the machine-shaping of backboard 21.Back
Plate 21 can also be made by the way of Thermocompressed sintering and forming, adopt hot-forming mode, have the advantages that the thin intensity of wall is good, can
21 flatness of backboard is effectively ensured, it can be further ensured that the requirement of optics visual effect, and can be avoided light guide plate 22 and push up bletilla mill
Hurt problem.Since ceramic material has high thermal conductivity, it can satisfy the cooling requirements of light source 24, relative to traditional plastic cement backboard
21, plastic-aluminum combined backboard 21, steel plastic compount backboard 21 and Zinc-coated steel-plated punch backboard 21, have a clear superiority.
Further, backboard 21 is equipped with accommodating cavity 211, and backboard 21 is equipped with the opening being connected to accommodating cavity 211, accommodating cavity
211 surfaces opposite with being open are reflecting surface 211a, and accommodating cavity 211 further includes the side wall surface for surrounding reflecting surface 211a setting
211b, light guide plate 22 and light source 24 are set in accommodating cavity 211.Backboard 21 in the present embodiment produces liquid crystal module in assembling
It when 100, can directly be connect with liquid crystal display panel 10, no setting is required center, to reduce the amount of parts of liquid crystal module 100.And
It when backboard 21 is using ceramic material, is also convenient for being integrally formed, reduces the assembling procedure of backlight module 20.In its of the utility model
In his embodiment, backboard 21 or slab construction, or the mechanism of flange is equipped in the edge of plate backboard 21.
When due to backboard 21 using ceramic material, the glossiness on surface is relatively high, therefore, in the present embodiment, side wall
Face 211b is reflective surface, and in order to guarantee the light reflection effect of reflective surface, the reflectivity that reflective surface can be set is more than or equal to
96.2%, or the glossiness of setting reflective surface is B, 15GU≤B≤35GU.That is, utilizing the good light on ceramic material surface
Damp degree makes the side wall surface 211b of the accommodating cavity 211 of backboard 21 be also used for reflected light, is further reduced the setting of reflecting paper, in turn
Reduce the amount of parts of liquid crystal module 100.Certainly, when backboard 21 is made using other materials, it can only guarantee reflection
The glossiness or reflectivity of face 211a and side wall surface 211b to guarantee the utilization rate of light, and then guarantees backlight module 20
Brightness.
In order to improve the light-emitting uniformity or intensity of light guide plate 22, in the present embodiment, light guide plate 22 deviates from reflecting surface
A surface of 211a is equipped with optical diaphragm 23.Outgoing light homogeneity due to increasing light guide plate 22 needs to increase the production of light guide plate 22
Precision, and then the production cost of light guide plate 22 is increased, optical diaphragm 23, Neng Gou is set on light guide plate 22 in the present embodiment
In the case where the light-emitting uniformity or intensity that improve light guide plate 22, the cost of light guide plate 22 is reduced.
Further, optical diaphragm 23 includes the diffusion sheet 231 set on light guide plate 22, and is deviated from set on diffusion sheet 231
The blast piece 232 on 22 1 surface of light guide plate.Diffusion sheet 231 is mainly used for the optical haze issued to light guide plate 22, makes backlight module
20 provide a uniform area source, in use, the material that diffusion sheet 231 selects light transmission rate high, such as PET plastic, PC
Plastics or organic glass (PMMA) etc..It can be fixedly connected by double-sided adhesive between diffusion sheet 231 and light guide plate 22, or back
Plate 21 is equipped with fixing piece, and the end of diffusion sheet 231 is equipped with hangers, and the hangers of diffusion sheet 231 is connect with fixing piece, realizes diffusion
The position of piece 231 is fixed, and in practical applications, can be realized diffusion sheet 231 by the way of UV gluing knot according to demand and be led
The connection of tabula rasa 22.
Since from the light that light guide plate 22 issues, after the injection of diffusion sheet 231, the directive property of light is poor, leads to backlight module 20
The brightness of the area source of offer is lower, for this purpose, blast piece 232 is arranged away from a surface of light guide plate 22 in diffusion sheet 231.Blast
Piece 232 is used to correct the direction of light, when light is entered in blast piece 232 from diffusion sheet 231, refraction through light with reflect up to
The purpose agglomerated light, improve front face brightness can be made whole with increasing the service efficiency after light self-diffusion piece 231 projects
The brightness of backlight module 20 improves 60% to 100%.Blast piece 232 is mainly using polyester or polycarbonate as material, table
Face structure is generally prismatic cylinder or semicylinder.In an embodiment of the utility model, set in the end of blast piece 232
There is hangers, backboard 21 is equipped with fixing piece, and the hangers of blast piece 232 is connect with fixing piece, realizes that the position of blast piece 232 is solid
It is fixed.It in practical applications, can also be using the composite sheet formed by diffusion sheet 231 and blast piece 232, to simplify backlight module 20
Assembling procedure, at this point, between composite sheet and light guide plate 22 can using be glued by the way of connect.
In an embodiment of the utility model, backlight module 20 further includes center (not shown), and center is set to backboard 21,
And be arranged around light guide plate 22, light source 24 is set between center and light guide plate 22.Buckle, spiral shell can be used between center and backboard 21
Nail either binder realizes connection.Center is set on backboard 21, to simplify the structure of backboard 21, while can be in backlight mould
After group 20 is assembled into liquid crystal module 100 with liquid crystal display panel 10, front frame can be set in liquid crystal module 100, in order to fixer
Crystal panel 10, front frame is set to liquid crystal display panel 10 and deviates from the side of backlight module 20, and connect with center.Backlight module 20 further includes
Glue frame 26, center are shaped to a cyclic structure with 26 groups of glue frame, which is arranged around light guide plate 22, and wherein glue frame 26 is right
The light source 24 on backboard 21 is answered to be arranged, center corresponds to the position setting of not set light source 24 on backboard 21.
The utility model also proposes a kind of liquid crystal module 100, as shown in Fig. 2, the liquid crystal module 100 includes liquid crystal display panel 10
With backlight module 20, liquid crystal display panel 10 is set to backboard 21, and is located at the side that light guide plate 22 deviates from backboard 21.The backlight module 20
Specific structure referring to above-described embodiment, since this liquid crystal module 100 uses whole technical solutions of above-mentioned all embodiments,
Therefore at least there are all beneficial effects brought by the technical solution of above-described embodiment, this is no longer going to repeat them.Wherein, it carries on the back
Optical mode group 20 includes: backboard 21, and backboard 21 includes the reflecting surface 211a for reflected light；Light guide plate 22, light guide plate 22 include bottom
Face and side, the bottom surface of light guide plate are connected to the reflecting surface 211a of backboard 21；And light source 24, it is set to backboard 21, and lead relatively
The side of tabula rasa 22 is arranged.
In an embodiment of the utility model, backboard 21 is equipped with envelope screen glue 25, and liquid crystal display panel 10 passes through envelope screen glue 25
It is connect with backboard 21.When being equipped with glue frame 26 on backboard 21, envelope screen glue 25 also is provided in glue frame 26, liquid crystal display panel 10 passes through envelope screen
Glue 25 is connect with glue frame 26.Wherein, liquid crystal module 100 can be used for the fields such as display or television set.
The utility model also proposes a kind of LCD TV (not shown), which includes liquid crystal module 100.The liquid crystal
The specific structure of mould group 100 is referring to above-described embodiment, since this LCD TV uses whole technologies of above-mentioned all embodiments
Scheme, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, this is no longer going to repeat them.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of backlight module characterized by comprising
Backboard, the backboard include the reflecting surface for reflected light；
Light guide plate, the light guide plate include bottom surface and side, and the bottom surface of the light guide plate is connected to the reflecting surface of the backboard；With
And
Light source is set to the backboard, and is arranged relative to the side of the light guide plate.
2. backlight module as described in claim 1, which is characterized in that the reflectivity of the reflecting surface is more than or equal to
96.2%；
And/or the glossiness of the reflecting surface is A, 15GU≤A≤35GU.
3. backlight module as described in claim 1, which is characterized in that the material of the backboard is ceramics.
4. such as backlight module any one of claims 1 to 3, which is characterized in that the backboard is equipped with accommodating cavity, the back
Plate is equipped with the opening being connected to the accommodating cavity, and the accommodating cavity and the opposite surface that is open are the reflecting surface, institute
Stating accommodating cavity further includes the side wall surface around reflecting surface setting, and the light guide plate and the light source are set to the accommodating cavity
It is interior.
5. backlight module as claimed in claim 4, which is characterized in that the side wall surface is reflective surface.
6. such as backlight module any one of claims 1 to 3, which is characterized in that the light guide plate deviates from the reflecting surface
A surface be equipped with optical diaphragm.
7. backlight module as claimed in claim 6, which is characterized in that the optical diaphragm includes the expansion set on the light guide plate
Discrete piece, and set on the diffusion sheet away from the blast piece on one surface of light guide plate.
8. such as backlight module any one of claims 1 to 3, which is characterized in that the backlight module further includes center, institute
Center is stated set on the backboard, and be arranged around the light guide plate, the light source is set between the center and the light guide plate.
9. a kind of liquid crystal module, which is characterized in that the backlight mould including liquid crystal display panel and as described in any in claim 1 to 8
Group, the liquid crystal display panel are set to the backboard, and are located at the side that the light guide plate deviates from the backboard.
10. a kind of LCD TV, which is characterized in that including liquid crystal module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821813174.XU CN208795981U (en) | 2018-11-05 | 2018-11-05 | Backlight module, liquid crystal module and LCD TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821813174.XU CN208795981U (en) | 2018-11-05 | 2018-11-05 | Backlight module, liquid crystal module and LCD TV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208795981U true CN208795981U (en) | 2019-04-26 |
Family
ID=66212568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821813174.XU Active CN208795981U (en) | 2018-11-05 | 2018-11-05 | Backlight module, liquid crystal module and LCD TV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208795981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112346272A (en) * | 2020-11-10 | 2021-02-09 | 惠州视维新技术有限公司 | Backlight source assembly, manufacturing process and liquid crystal display device |
-
2018
- 2018-11-05 CN CN201821813174.XU patent/CN208795981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112346272A (en) * | 2020-11-10 | 2021-02-09 | 惠州视维新技术有限公司 | Backlight source assembly, manufacturing process and liquid crystal display device |
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