CN208172453U - Backlight module and corresponding liquid crystal display device with optical scattering structure - Google Patents
Backlight module and corresponding liquid crystal display device with optical scattering structure Download PDFInfo
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- CN208172453U CN208172453U CN201820738766.3U CN201820738766U CN208172453U CN 208172453 U CN208172453 U CN 208172453U CN 201820738766 U CN201820738766 U CN 201820738766U CN 208172453 U CN208172453 U CN 208172453U
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- guide section
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- optical scattering
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Abstract
The utility model provides a kind of backlight module with optical scattering structure comprising light source, optical scattering structure and light reflector；Optical scattering structure include light diffusion body, projection light diffusion body incidence surface the first light guide section, recessed the second light guide section between the first light guide section and the light diffusing sheet being arranged on the second light guide section；The distance between first light guide section positioned at light diffusion body incidence surface middle section is greater than the distance between the first leaded light positioned at two side areas；The middle section of light diffusion body incidence surface is arranged in second light guide section.The utility model further relates to a kind of liquid crystal display device.The backlight module with optical scattering structure of the utility model improves the luminous uniformity of backlight module by the setting of optical scattering structure.
Description
Technical field
The utility model relates to backlight module field, more particularly to a kind of backlight module with optical scattering structure and right
The liquid crystal display device answered.
Background technique
With the development of backlight module, it is straight-down negative respectively that backlight module, which is applied to there are two types of liquid crystal display devices, at present
Backlight module and side entrance back module.
In down straight aphototropism mode set, backlight module includes light source, reflector and the diffuser plate being arranged on light source and sets
The diffusion sheet on diffuser plate is set, in existing backlight module, since the brightness of intermediate light source luminescent is larger, the light of two sides
Source light emission luminance is relatively small, to cause the light emission luminance of four peripheral edge margins of backlight module more confused when by diffuser plate
Secretly, luminous uniformity is affected.
When down straight aphototropism mode set is applied to liquid crystal display device, the display brightness of liquid crystal display device will be caused not
Equal situation.
Therefore, it is desirable to provide a kind of backlight module with light guide structure, to solve the above technical problems.
Utility model content
The utility model embodiment provides a kind of backlight module with optical scattering structure；To solve existing downward back
The technical issues of optical mode group non-uniform light.
The utility model embodiment provides a kind of backlight module with optical scattering structure comprising：
Light source；
The side of the light source light-emitting surface is arranged in optical scattering structure, carries out light diffusion for the light to the light source
Processing；And
Light reflector is arranged between the light source and the optical scattering structure；
The optical scattering structure include light diffusion body, projection the smooth diffusion body incidence surface the first light guide section,
Recessed the second light guide section between first light guide section and the light diffusing sheet being arranged on second light guide section；
The distance between described first light guide section positioned at the smooth diffusion body incidence surface middle section, which is greater than, is located at two
The distance between described first leaded light of side region；And second light guide section is arranged in the smooth diffusion body incidence surface
Entreat region.
In the backlight module with optical scattering structure of the utility model, second light guide section is the V-groove of strip,
The notch angle of second light guide section is obtuse angle.
In the backlight module with optical scattering structure of the utility model, it is arcuation that first light guide section, which is cross section,
Raised line, the long axis direction of first light guide section is parallel with the long axis direction of second light guide section.
In the backlight module with optical scattering structure of the utility model, the light diffusing sheet includes setting described the
The light diffusing sheet ontology of light transmission on two light guide sections and the light reflector element being arranged in the smooth diffusion body；
The smooth reflector element is uniformly arranged along the periphery of the light diffusing sheet ontology.
In the backlight module with optical scattering structure of the utility model, the light diffusing sheet is round or rectangle, institute
Light reflector element is stated as one of round or rectangle.
In the backlight module with optical scattering structure of the utility model, the optical scattering structure includes being arranged described
Light diffusion body light-emitting surface two side areas be located at the smooth diffusion body incidence surface two side areas described in the first light guide section pair
The third light guide section that should be arranged, the third light guide section are arc-shaped recess slot.
In the backlight module with optical scattering structure of the utility model, the optical scattering structure further includes being arranged in institute
The fixed part of light diffusion body two sides is stated, the backlight module with optical scattering structure includes that the light source and light is fixedly installed
The backboard of diffusion structure；The two sides of the backboard are provided with fixing groove；
The fixed part is fixed in the fixing groove.
In the backlight module with optical scattering structure of the utility model, the backlight module with optical scattering structure
It is spread including lamp plate, the optical reflection film that is arranged on the lamp plate and the setting for the light source to be fixedly installed in the light
Optical diaphragm in structure.
The utility model further relates to a kind of liquid crystal display device and includes backlight module and be arranged on the backlight module
Liquid crystal display panel, the backlight module include
Light source；
The side of the light source light-emitting surface is arranged in optical scattering structure, carries out light diffusion for the light to the light source
Processing；
Light reflector is arranged between the light source and the optical scattering structure；And
The optical scattering structure include light diffusion body, projection the smooth diffusion body incidence surface the first light guide section,
Recessed the second light guide section between first light guide section and the light diffusing sheet being arranged on second light guide section；
The distance between described first light guide section positioned at the smooth diffusion body incidence surface middle section, which is greater than, is located at two
The distance between described first leaded light of side region；And second light guide section is arranged in the smooth diffusion body incidence surface
Entreat region.
Backlight module in this liquid crystal display device is as the structure of the above-mentioned backlight module with optical scattering structure.
In the liquid crystal display device of the utility model, the light diffusing sheet includes being arranged on second light guide section
The light diffusing sheet ontology of light transmission and the light reflector element being arranged in the smooth diffusion body；
The smooth reflector element is uniformly arranged along the periphery of the light diffusing sheet ontology.
The backlight module with optical scattering structure of backlight module compared to the prior art, the utility model is expanded by light
The setting of dissipating bind structure improves the luminous uniformity of backlight module；Solves existing down straight aphototropism mode set non-uniform light
The technical issues of.
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 in embodiment
Required attached drawing is briefly described.The accompanying drawings in the following description is only the section Example of the utility model, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram of the preferred embodiment of the backlight module with optical scattering structure of the utility model；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is the structure of the light diffusing sheet of the preferred embodiment of the backlight module with optical scattering structure of the utility model
Schematic diagram；
Fig. 4 is the structural schematic diagram of the preferred embodiment of the liquid crystal display device of the utility model.
Specific embodiment
The schema in attached drawing is please referred to, wherein identical component symbol represents identical component.The following description is to be based on
Illustrated by the utility model specific embodiment, be not construed as limitation the utility model other specific realities not detailed herein
Apply example.
Referring to Fig.1 and 2, Fig. 1 is the preferred embodiment of the backlight module with optical scattering structure of the utility model
Structural schematic diagram；Fig. 2 is the enlarged drawing of A in Fig. 1.The backlight module with optical scattering structure in the present embodiment comprising
Light source 10, optical scattering structure 20, light reflector 30, backboard 40 and optical diaphragm 50.
Specifically, the side of light source light-emitting surface is arranged in optical scattering structure 20, light expansion is carried out for the light to light source 10
Dissipate processing；Light reflector 30 is arranged between light source 10 and optical scattering structure 20；Optical scattering structure 20 include light diffusion body 21,
First light guide section 22, recessed second light guide section 23 and first light guide section 21 between of the projection in 21 incidence surface of light diffusion body
Light diffusing sheet 24 on second light guide section 23 is set；
The distance between first light guide section 22 positioned at 21 incidence surface middle section of light diffusion body, which is greater than, is located at light diffusion
The distance between the first leaded light 22 of 21 incidence surface two side areas of ontology；And second light guide section 23 setting enter in light diffusion body 21
The middle section of smooth surface.
The backlight module with optical scattering structure 20 of the present embodiment passes through the setting of optical scattering structure 20, improves backlight
The luminous uniformity of mould group.
Wherein, since in light source 10, the light of middle section is stronger, the light of two side areas is weaker, passes through first
The distance of light guide section 22 is arranged, and improves the intensity in 20 light-emitting surface of optical scattering structure of two side areas, shines uniformly to reach
The purpose of property.
In addition, the effect for reflecting some light is played into the centrally disposed region of the second light guide section 23, with
The luminous intensity of lower middle section.(can hereafter be described)
In the present embodiment, the second light guide section 23 is the V-groove of strip, and the notch angle α of the second light guide section 23 is obtuse angle.
When the notch angle α of the second light guide section 23 is obtuse angle, the light of part can be reflexed to the two side areas of light source 10, to increase
The intensity of the light of two side areas, thus the problem of further increasing backlight module uniformity of luminance.
Referring to figure 3., in the present embodiment, light diffusing sheet 24 includes that the light for the light transmission being arranged on the second light guide section 23 expands
Discrete piece ontology 241 and the light reflector element 242 being arranged in light diffusion body 241；Light reflector element 242 is along light diffusing sheet sheet
The periphery of body 241 is uniformly arranged.
The effect of light reflector element 242 is to reflect light of the radiation on light reflector element 242, and a side reduces
On the other hand the light intensity of middle section enhances the light intensity of two side areas.
In the present embodiment, the first light guide section 22 is the raised line that cross section is arcuation, the long axis direction of the first light guide section 22
It is parallel with the long axis direction of the second light guide section 23.
In the present embodiment, light diffusing sheet 24 is round or rectangle, and light reflector element 242 is one in round or rectangle
Kind.In the present embodiment, light diffusing sheet 24 and light reflector element 242 are circle.
In the present embodiment, optical scattering structure 20 include 21 light-emitting surface two side areas of light diffusion body is set be located at
The third light guide section 25 that 21 the first light guide section of incidence surface two side areas 22 of light diffusion body is correspondingly arranged, third light guide section 25 are arc
Shape recessed groove.
The setting of third light guide section 25 further carries out the diffusion of light to the light of two side areas, further increases
The uniformity of light diffusion.
In the present embodiment, optical scattering structure 20 further includes the fixed part 26 that 21 two sides of light diffusion body are arranged in, and is had
The backlight module of optical scattering structure 20 includes the backboard 40 that light source 10 and optical scattering structure 20 is fixedly installed；The two sides of backboard 40 are set
It is equipped with fixing groove；Fixed part 26 is fixed in the fixing groove.
The fixed setting of fixed part 26 and fixing groove improves the stability between optical scattering structure 20 and backboard 40.
In the present embodiment, the backlight module with optical scattering structure 20 includes the lamp plate for light source 10 to be fixedly installed
11, the optical reflection film 12 being arranged on lamp plate 11 and the optical diaphragm 50 being arranged on optical scattering structure 20.
The operating process of the present embodiment is：
Firstly, the light that light source 10 issues, most of light passes through the first light guide section 22 and third of optical scattering structure 20
Light guide section 25 is radiated to optical diaphragm 50, wherein the first light guide section 22 and third light guide section 25 are diffused and guide to light
Effect；
Then, the light radiation of part is on the light diffusing sheet 24 of the second light guide section 23, and in the work of light reflector element 242
Under, so that some light is reflected onto the two side areas of light source 10, radiant light diffusion mechanism 20 again；
Finally, light is uniformly radiated from the light-emitting surface of optical scattering structure 20 through optical diaphragm 50, and from optical diaphragm 50
It projects.
The operating process of the present embodiment is just completed in this way.
Referring to figure 4., the utility model further relates to a kind of liquid crystal display device and includes backlight module 100 and be arranged described
Liquid crystal display panel 200 on backlight module, the backlight module 100 include
Light source；
The side of the light source light-emitting surface is arranged in optical scattering structure, carries out light diffusion for the light to the light source
Processing；
Light reflector is arranged between the light source and the optical scattering structure；And
The optical scattering structure include light diffusion body, projection the smooth diffusion body incidence surface the first light guide section,
Recessed the second light guide section between first light guide section and the light diffusing sheet being arranged on second light guide section；
The distance between described first light guide section positioned at the smooth diffusion body incidence surface middle section, which is greater than, is located at two
The distance between described first leaded light of side region；And second light guide section is arranged in the smooth diffusion body incidence surface
Entreat region.
The backlight module with optical scattering structure of backlight module 100 and above-described embodiment in this liquid crystal display device
Structure is the same.
In the liquid crystal display device of the present embodiment, the light diffusing sheet include be arranged in it is saturating on second light guide section
The light diffusing sheet ontology of light and the light reflector element being arranged in the smooth diffusion body；
The smooth reflector element is uniformly arranged along the periphery of the light diffusing sheet ontology.
In the liquid crystal display device of the present embodiment, second light guide section is the V-groove of strip, second light guide section
Notch angle be obtuse angle.
In the liquid crystal display device of the present embodiment, first light guide section is the raised line that cross section is arcuation, described
The long axis direction of one light guide section is parallel with the long axis direction of second light guide section.
The optical scattering structure includes that expanding with positioned at the light for the smooth diffusion body light-emitting surface two side areas is arranged in
The third light guide section that the first light guide section described in ontology incidence surface two side areas is correspondingly arranged is dissipated, the third light guide section is that arc is recessed
Fall into slot.
In the liquid crystal display device of the present embodiment, the optical scattering structure further includes being arranged in the smooth diffusion body two
The fixed part of side, the backlight module 100 include the backboard that the light source and optical scattering structure is fixedly installed；The two of the backboard
Side is provided with fixing groove；
The fixed part is fixed in the fixing groove.
In the liquid crystal display device of the present embodiment, the backlight module 100 includes for the light source to be fixedly installed
Lamp plate, the optical reflection film being arranged on the lamp plate and the optical diaphragm being arranged on the optical scattering structure.
The backlight module with optical scattering structure of backlight module compared to the prior art, the utility model is expanded by light
The setting of dissipating bind structure improves the luminous uniformity of backlight module；Solves existing down straight aphototropism mode set non-uniform light
The technical issues of.
Although above preferred embodiment is not used in conclusion the utility model is disclosed above with preferred embodiment
To limit the utility model, those skilled in the art can make without departing from the spirit and scope of the utility model
It is various to change and retouch, therefore the protection scope of the utility model subjects to the scope of the claims.
Claims (10)
1. a kind of backlight module with optical scattering structure, which is characterized in that including：
Light source；
The side of the light source light-emitting surface is arranged in optical scattering structure, carries out light DIFFUSION TREATMENT for the light to the light source；
And
Light reflector is arranged between the light source and the optical scattering structure；
The optical scattering structure include light diffusion body, projection the smooth diffusion body incidence surface the first light guide section, recessed
The second light guide section between first light guide section and the light diffusing sheet being arranged on second light guide section；
The distance between described first light guide section positioned at the smooth diffusion body incidence surface middle section, which is greater than, is located at two lateral areas
The distance between first leaded light in domain；And the central area of the smooth diffusion body incidence surface is arranged in second light guide section
Domain.
2. the backlight module according to claim 1 with optical scattering structure, which is characterized in that second light guide section is
The notch angle of the V-groove of strip, second light guide section is obtuse angle.
3. the backlight module according to claim 2 with optical scattering structure, which is characterized in that first light guide section is
Cross section is the raised line of arcuation, and the long axis direction of first light guide section is parallel with the long axis direction of second light guide section.
4. the backlight module according to claim 1 with optical scattering structure, which is characterized in that the light diffusing sheet includes
The light diffusing sheet ontology for the light transmission being arranged on second light guide section and the light being arranged in smooth diffusion body reflection are single
Member；
The smooth reflector element is uniformly arranged along the periphery of the light diffusing sheet ontology.
5. the backlight module according to claim 4 with optical scattering structure, which is characterized in that the light diffusing sheet is circle
Shape or rectangle, the smooth reflector element are one of round or rectangle.
6. the backlight module according to claim 1 with optical scattering structure, which is characterized in that the optical scattering structure packet
Include be arranged in the smooth diffusion body light-emitting surface two side areas be located at the smooth diffusion body incidence surface two side areas described in
The third light guide section that first light guide section is correspondingly arranged, the third light guide section are arc-shaped recess slot.
7. the backlight module according to claim 1 with optical scattering structure, which is characterized in that the optical scattering structure is also
Fixed part including the smooth diffusion body two sides are arranged in, the backlight module with optical scattering structure include fixed setting
The backboard of the light source and optical scattering structure；The two sides of the backboard are provided with fixing groove；
The fixed part is fixed in the fixing groove.
8. the backlight module according to claim 1 with optical scattering structure, which is characterized in that described that there are light diffusion junctions
The backlight module of structure includes for the lamp plate of the light source, the optical reflection film being arranged on the lamp plate and setting to be fixedly installed
Optical diaphragm on the optical scattering structure.
9. a kind of liquid crystal display device, it is characterised in that；Including backlight module and the liquid crystal being arranged on the backlight module
Show that panel, the backlight module include
Light source；
The side of the light source light-emitting surface is arranged in optical scattering structure, carries out light DIFFUSION TREATMENT for the light to the light source；
And
Light reflector is arranged between the light source and the optical scattering structure；
The optical scattering structure include light diffusion body, projection the smooth diffusion body incidence surface the first light guide section, recessed
The second light guide section between first light guide section and the light diffusing sheet being arranged on second light guide section；
The distance between described first light guide section positioned at the smooth diffusion body incidence surface middle section, which is greater than, is located at two lateral areas
The distance between first leaded light in domain；And the central area of the smooth diffusion body incidence surface is arranged in second light guide section
Domain.
10. liquid crystal display device according to claim 9, which is characterized in that the light diffusing sheet includes being arranged described
The light diffusing sheet ontology of light transmission on second light guide section and the light reflector element being arranged in the smooth diffusion body；
The smooth reflector element is uniformly arranged along the periphery of the light diffusing sheet ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820738766.3U CN208172453U (en) | 2018-05-16 | 2018-05-16 | Backlight module and corresponding liquid crystal display device with optical scattering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820738766.3U CN208172453U (en) | 2018-05-16 | 2018-05-16 | Backlight module and corresponding liquid crystal display device with optical scattering structure |
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| Publication Number | Publication Date |
|---|---|
| CN208172453U true CN208172453U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820738766.3U Active CN208172453U (en) | 2018-05-16 | 2018-05-16 | Backlight module and corresponding liquid crystal display device with optical scattering structure |
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| CN (1) | CN208172453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507822A (en) * | 2019-01-14 | 2019-03-22 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
-
2018
- 2018-05-16 CN CN201820738766.3U patent/CN208172453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507822A (en) * | 2019-01-14 | 2019-03-22 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
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