CN209560120U - A kind of diffuser plate, down straight aphototropism mode set and display equipment - Google Patents
A kind of diffuser plate, down straight aphototropism mode set and display equipment Download PDFInfo
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- CN209560120U CN209560120U CN201920382732.XU CN201920382732U CN209560120U CN 209560120 U CN209560120 U CN 209560120U CN 201920382732 U CN201920382732 U CN 201920382732U CN 209560120 U CN209560120 U CN 209560120U
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Abstract
The utility model relates to packing technique field, a kind of diffuser plate, down straight aphototropism mode set and display equipment are specifically disclosed.The diffuser plate includes the incidence surface and light-emitting surface being oppositely arranged, and incidence surface includes the globoidal structure that multistage is sequentially connected, and the outside projection of globoidal structure, light-emitting surface is planar structure；Diffuser plate is internally provided with several diffusion particles, is used for scattering light.On the one hand the globoidal structure of diffuser plate incidence surface can upset the luminous energy of rule distribution originally, on the other hand the quantity of diffusion particle in regional area is increased, the luminous energy of incident diffuser plate can be made to realize more fully to scatter, to make luminous energy be redistributed, photic-energy transfer is more evenly, desalinate dark space between lamp shadow and lamp, the bracket shadow being atomized on diffuser plate improves subjective visual effect；Achieve the purpose that the design spacing of increase LED to reduce the usage quantity of LED, significantly reduces cost simultaneously.
Description
Technical field
The utility model relates to packing technique fields more particularly to a kind of diffuser plate, down straight aphototropism mode set and display to set
It is standby.
Background technique
As shown in Figure 1, being provided with luminescence unit and bracket 1 ' on backboard 2 ', instead in traditional down straight aphototropism mode set
It penetrates piece 3 ' and is set to 2 ' inner surface of backboard, diffuser plate 4 ' and diaphragm 5 ' are placed in the top platform of backboard 2 ' and are supported by bracket 1 ',
Luminescence unit includes LED6 ' and is provide with lens 7 ' thereon, and light mixing cavity is formed between backboard 2 ' and diffuser plate 4 '.It shines single
The light that member issues is changed into the area source of brightness uniformity by the even light of diffusion of diffuser plate 4 ', is the picture of liquid crystal display panel
Display provides light.
As shown in Fig. 2, setting the light-emitting angles of lens 7 ' as α ', when two adjacent LED 6 ' project on diffuser plate 4 '
When the hot spot of formation is just tangent, visual effect is optimal state.Light mixing distance is set as H ', then theoretically between adjacent LED 6 '
Optimal interval are as follows: L '=2H '/tan (α '/2 90-), the light-emitting angle of industry interior len 7 ' is 150 ° or so at present, then can be with
It is calculated by above-mentioned equation: L ' ≈ 7.5H '.It is designed according to this theoretical value, the cost of LED6 ' and lens 7 ' is very high.
Therefore, the design quantity of LED6 ' and lens 7 ' can only be reduced, that is, the spacing L ' of adjacent LED 6 ' is widened, in this way, can be
The blocking distribution of light and shade unevenness is formed on diffuser plate 4 ', shows as occurring 8 ' problem of dark space between lamp in subjective visual effect, and brightness is equal
Even property is relatively low, visual effect inferior quality.The design of traditional down straight aphototropism mode set is highly dependent on lens 7 ' again, and lens 7 ' are developed
Period is long, the accuracy of manufacture is low, it is difficult to meet the growth requirement of down straight aphototropism mode set.
Cost is reduced in order to reduce luminescence unit quantity, butterfly is presented after 7 ' secondary light-distribution of lens and goes out for LED6 ' luminous energy
Light is to expand light-emitting angle, and distribution curve flux is as shown in figure 3, the front surface region LED6 ' relative light intensity is lower, LED6 ' lateral side regions phase
It is higher to light intensity, due to being difficult to accurately accomplish each angle optical power detection, can be formed on diffuser plate 4 ' non-uniform bright dark
Alternate ring-shaped light spot shows as dark space 8 ' between the lamp shadow of regularity distribution and lamp in subjective visual effect.In order to optimize visual effect, need
Masking atomization is carried out using the diaphragm 5 ' of high-cost haze diffuser plate 4 ' and high configuration, but the effect is unsatisfactory, and at
Originally it significantly improves.
On the other hand, as shown in figure 4, the luminous energy of LED6 ' is emitted through lens 7 ' reaches bracket 1 ', partially it is reflected back toward chamber
Body, fraction are absorbed by bracket 1 ', are partially reached diffuser plate 4 ' after the refraction of bracket 1 ' and are generated offset.Due to what is reflected and absorb
In the presence of, can be weakened by the luminous energy of bracket 1 ', will form along with the presence of light shift, therefore on diffuser plate 4 ' light and shade unevenness
Regional photic-energy transfer, i.e. bracket shadow phenomenon must use the optical diaphragms such as several diffusion sheets, prismatic lens to carry out luminance raising
And masking, more uniform visual effect could be presented, but at high cost and effect is poor.
With down straight aphototropism mode set design it is increasingly lightening, light mixing distance H ' becomes smaller, and the above problem just more highlights.
Utility model content
First of the utility model is designed to provide a kind of diffuser plate, can make photic-energy transfer more evenly, to change
Philanthropist sees visual effect, can also be achieved and reduces LED quantity, reduces cost.
For this purpose, the utility model uses following technical scheme:
A kind of diffuser plate, the diffuser plate include incidence surface and light-emitting surface, and the light-emitting surface and the incidence surface are set relatively
It sets, the incidence surface includes the globoidal structure that multistage is sequentially connected, the outside projection of globoidal structure, and the light-emitting surface is plane
Structure；The diffuser plate is internally provided with several diffusion particles, is used for scattering light.
As the optimal technical scheme of above-mentioned diffuser plate, the diffusion particle is evenly distributed on inside the diffuser plate.
As the optimal technical scheme of above-mentioned diffuser plate, the surrounding of the diffuser plate is provided with scrap (bridge) portion, is used for and back
Plate installation.
As the optimal technical scheme of above-mentioned diffuser plate, the width in the scrap (bridge) portion is not less than 3mm, and thickness is not less than
0.8mm。
As the optimal technical scheme of above-mentioned diffuser plate, the scrap (bridge) portion with a thickness of L1, the maximum of the globoidal structure
With a thickness of L2, the brightness homogeneity of luminescence unit is μ, if μ >=70%, L1 < L2≤2L1, if μ < 70%, 2L1 < L2
≤3L1。
As the optimal technical scheme of above-mentioned diffuser plate, light mixing distance H, between the two neighboring globoidal structure between
Away from for L3, the light-emitting angle of lens is α, then L3=2 (H-L2) * tan (α/2).
Second of the utility model is designed to provide a kind of down straight aphototropism mode set, can effectively solve lamp shadow, lamp
Between dark space, bracket shadow the problems such as, so as to improve subjective visual effect, realize that LED spacing maximizes, LED number minimizes, it is significant to drop
Low cost.
For this purpose, the utility model uses following technical scheme:
A kind of down straight aphototropism mode set, including backboard, luminescence unit, supporting element and above-mentioned diffuser plate, the diffuser plate
It is mounted on the backboard, the luminescence unit and the supporting element are all set in the backboard bottom and are located at the diffuser plate
The incidence surface side.
As the optimal technical scheme of above-mentioned down straight aphototropism mode set, the supporting element is provided with multiple and is located at the arc
The underface on the vertex of face structure, and the minimum clearance between the supporting element and the globoidal structure is not less than 1.5mm.
As the optimal technical scheme of above-mentioned down straight aphototropism mode set, the luminescence unit is provided with multiple, and one is a pair of
The underface of the globoidal structure junction of adjacent two sections should be set to.
The third of the utility model is designed to provide a kind of display equipment, and subjective visual effect is good, and cost reduces.
For this purpose, the utility model uses following technical scheme:
A kind of display equipment, including above-mentioned down straight aphototropism mode set.
Compared with prior art, the advantages of the utility model and beneficial effect is:
The utility model provides a kind of diffuser plate, and the light-emitting surface of the diffuser plate is planar structure, and incidence surface is designed as connecting
Continuous globoidal structure, and diffuser plate is internally provided with several diffusion particles, is used for scattering light.The cambered surface knot of diffuser plate incidence surface
On the one hand structure can upset the luminous energy of rule distribution originally, on the other hand increase the quantity of diffusion particle in regional area, can
So that the luminous energy realization of incident diffuser plate more fully scatters, so that luminous energy be made to be redistributed, photic-energy transfer more evenly,
Desalinate dark space between lamp shadow and lamp, the bracket shadow being atomized on diffuser plate improves subjective visual effect；Reach simultaneously and has increased LED's
Spacing is designed to reduce the purpose of the usage quantity of LED, significantly reduces cost.
The utility model additionally provides a kind of down straight aphototropism mode set, which can effectively solve lamp
Between shadow, lamp the problems such as dark space, bracket shadow, so as to improve subjective visual effect, realize that LED spacing maximizes, LED number minimizes,
Significantly reduce cost；And the backlight module can be compatible with a plurality of lens, effectively shorten product development cycle.
The utility model additionally provides a kind of display equipment, and the display equipment subjectivity visual effect is good, and cost reduces.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of down straight aphototropism mode set in the prior art；
Fig. 2 is the visual effect schematic diagram of down straight aphototropism mode set in the prior art；
Fig. 3 is the distribution curve flux schematic diagram of luminescence unit in the prior art；
Fig. 4 is the bracket shadow schematic diagram of down straight aphototropism mode set in the prior art；
Fig. 5 is the structural schematic diagram for the down straight aphototropism mode set that specific embodiment of the present invention provides；
Fig. 6 is the structural schematic diagram for the diffuser plate that specific embodiment of the present invention provides；
Fig. 7 is the partial enlargement diagram for the diffuser plate that specific embodiment of the present invention provides；
Fig. 8 is the arrangement signal of the test point when brightness homogeneity μ that specific embodiment of the present invention provides is tested
Figure.
In figure:
1 '-bracket；2 '-backboards；3 '-reflector plates；4 '-diffuser plates；5 '-diaphragms；6'-LED；7 '-lens；8 '-dark spaces；
1- diffuser plate；11- incidence surface；111- globoidal structure；12- light-emitting surface；13- spreads particle；14- scrap (bridge) portion；
2- backboard；3- luminescence unit；4- supporting element；5- reflector plate；6- optical diaphragm.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It can manage
Solution, the specific embodiments described herein are used only for explaining the utility model, rather than the restriction to the utility model.
It also should be noted that illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
In the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection " should be done extensively
Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or integral；It can be mechanical connection, it can also be with
It is electrical connection；Can be directly connected, can also indirectly connected through an intermediary, can be connection inside two elements or
The interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Some nouns of locality are defined in the utility model, in the case where not being specified to the contrary, the used noun of locality
As "center", "upper", "lower", "front", "rear", "left", "right" refer to diffuser plate provided by the utility model in normal use feelings
Condition is undefined, and consistent with orientation or positional relationship shown in the drawings, and "inner", "outside" refer to takes turns relative to each part itself
Wide is inside and outside.These nouns of locality are merely for convenience of description and simplification and operate, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore not constitute to scope of protection of the utility model
Limitation.In addition, term " first ", " second ", being used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Present embodiments provide for a kind of display equipment, which can be television set, display, advertisement machine etc.,
Display equipment includes backlight module and the display panel that is set to above backlight module.Backlight module provides bright for display equipment
Spend uniform backlight, display panel by control each pixel light by situation, control the display of each pixel
Situation, to show image.In the present embodiment, as shown in figure 5, backlight module is down straight aphototropism mode set comprising back
Plate 2, luminescence unit 3, supporting element 4, reflector plate 5, diffuser plate 1 and optical diaphragm 6, reflector plate 5 are mounted on the inner surface of backboard 2,
Diffuser plate 1 is installed on the top of 2 cavity of backboard, and the edge of backboard 2 is flipped up and connect with diffuser plate 1, and optical diaphragm 6 is arranged
In the upper surface of diffuser plate 1, light mixing chamber is formed between reflector plate 5 and diffuser plate 1, luminescence unit 3 and supporting element 4 are arranged in light mixing
In chamber.Luminescence unit 3 includes LED and lens.
As shown in Figure 6 and Figure 7, the diffuser plate 1 in present embodiment includes incidence surface 11 and light-emitting surface 12,12 He of light-emitting surface
Incidence surface 11 is oppositely arranged, the globoidal structure 111 that incidence surface 11 is sequentially connected including multistage, the outside projection of globoidal structure 111, out
Smooth surface 12 is planar structure；Diffuser plate 1 is internally provided with several diffusion particles 13, is used for scattering light.Light enters diffuser plate 1
Pass through reflected refraction several times under the action of diffusion particle 13 inside it, realizes that adequately scattering, luminous energy are reallocated, light
It can be distributed more uniform.
The diffuser plate 1 that present embodiment provides is different from traditional flat diffuser plate 4 ', 11 company of being designed as of incidence surface
On the one hand continuous globoidal structure 111, globoidal structure 111 can upset the luminous energy of rule distribution originally, on the other hand, diffuser plate 1
Diffusion depend on its internal organic diffusion particle 13, globoidal structure 111, which increases, spreads particle 13 in regional area
Quantity, the luminous energy of incident diffuser plate 1 can be made to realize and more fully scattered, so that luminous energy be made to be redistributed, luminous energy
It is more evenly distributed, desalinates dark space between lamp shadow and lamp, the bracket shadow on atomization diffuser plate 1, be effectively improved subjective visual effect；Simultaneously
Achieve the purpose that the design spacing of increase LED to reduce the usage quantity of LED, significantly reduces cost.Present embodiment mentions
The down straight aphototropism mode set of confession uses above-mentioned diffuser plate 1, improves lenses for compatibility, effectively shortens product development cycle.
Further, as shown in fig. 7, in order to improve the scattering uniformity of luminous energy, light-out effect more evenly is obtained, is expanded
Particle 13 is dissipated to be evenly distributed on inside diffuser plate 1.In actual production, 13 very high density of diffusion particle in diffuser plate 1, it is uniformly distributed
State is its ideal distribution state.
In the present embodiment, as shown in fig. 6, the surrounding of diffuser plate 1 is provided with scrap (bridge) portion 14, for pacifying with backboard 2
Dress.Further, as shown in fig. 6, the width in scrap (bridge) portion 14 is not less than 3mm, thickness is not less than 0.8mm, to guarantee and backboard 2
Assembly stability.Diffuser plate 1 can be integrally formed by mold, technology maturation.
The specific design size of the globoidal structure 111 of 1 incidence surface 11 of diffuser plate is illustrated below.As shown in figure 5, setting
Determining light mixing distance is H, scrap (bridge) portion 14 with a thickness of L1, the maximum gauge of globoidal structure 111 is L2, two neighboring globoidal structure
Spacing (spacing between the vertex of two globoidal structures 111) between 111 is L3, and the light-emitting angle of lens is α, then L3=2 (H-
L2)*tan(α/2).Therefore, under the premise of known to the light mixing distance H and lens light-emitting angle α, only it is to be understood that the value of L2,
To calculate the design spacing L3 of globoidal structure 111.
And the maximum gauge L2 needs of globoidal structure 111 are designed according to the brightness homogeneity μ of luminescence unit 3.Measure μ
When, it need to be by traditional flat diffuser plate 4 '.As shown in figure 8, on traditional plate diffuser plate 4 ', according to subjective visual effect circle
Determine the lamp shadow range of rectangle, in the range according to taking nine test points of P1-P9 shown in Fig. 8, and tests this nine surveys respectively
The brightness value of pilot, then calculates brightness homogeneity μ, and calculation formula is μ=min (P1:P9)/max (P1:P9)；Then again
According to the maximum gauge L2 of the numerical Design globoidal structure 111 of μ.Specifically, if μ >=70%, L1 < L2≤2L1, if μ <
70%, then 2L1 < L2≤3L1.Under normal circumstances, L2 value is the integral multiple of L1.It should be noted that the position of nine test points
Setting arrangement need to be designed according to the actual size of diffuser plate 4 ', and as shown in Figure 8, the size of diffuser plate 4 ' is A*B, then surveying
The arrangement of pilot need to meet positional relationship shown in fig. 8.
In the down straight aphototropism mode set that present embodiment provides, luminescence unit 3 and supporting element 4 are all set in 2 bottom of backboard
And it is located at 11 side of incidence surface of diffuser plate 1.Further, supporting element 4 is provided with top that is multiple and being located at globoidal structure 111
The underface of point, and the minimum clearance between supporting element 4 and globoidal structure 111 is not less than 1.5mm.The structure setting can effectively change
The shadow phenomenon of kind supporting element 4.In the present embodiment, the position of supporting element 4, branch are adjusted according to the specific size of diffuser plate 1
Simultaneously one-to-one relationship is not present in support member 4 and globoidal structure 111.Optionally, in the present embodiment, supporting element 4 is preferably
Conical support frame.
Optionally, luminescence unit 3 is provided with multiple, and is arranged in a one-to-one correspondence in adjacent two sections of globoidal structures 111 connection
The underface at place.The structure is to go out what light rule was arranged according to the butterfly of luminescence unit 3, due to 3 front surface region phase of luminescence unit
It is lower to light intensity, lateral side regions relative light intensity is higher, luminescence unit 3 is set to the underface at 1 thickness minimum of diffuser plate, is made
The luminous energy of front surface region gets to the thinnest part of incidence surface 11, and the luminous energy of lateral side regions gets to the globoidal structure 111 of incidence surface 11 (most
At thickness) on, it can be improved the distributing homogeneity of luminous energy, to be effectively improved out the bright dark consistency of light.
Obviously, the above embodiment of the utility model is used for the purpose of clearly illustrating examples for clearly illustrating the present invention,
And it is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, it is stated upper
It can also be made other variations or changes in different ways on the basis of bright.There is no need and unable to give all embodiments
With exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc. should all include
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of diffuser plate, which is characterized in that the diffuser plate (1) includes incidence surface (11) and light-emitting surface (12), the light out
Face (12) and the incidence surface (11) are oppositely arranged, and the incidence surface (11) includes the globoidal structure (111) that multistage is sequentially connected,
The outside projection of the globoidal structure (111), the light-emitting surface (12) are planar structure；The diffuser plate (1) is if be internally provided with
Dry diffusion particle (13), is used for scattering light.
2. diffuser plate according to claim 1, which is characterized in that the diffusion particle (13) is evenly distributed on the diffusion
Plate (1) is internal.
3. diffuser plate according to claim 1, which is characterized in that the surrounding of the diffuser plate (1) is provided with scrap (bridge) portion
(14), for being installed with backboard (2).
4. diffuser plate according to claim 3, which is characterized in that the width of the scrap (bridge) portion (14) is not less than 3mm, thickness
Not less than 0.8mm.
5. diffuser plate according to claim 3, which is characterized in that the scrap (bridge) portion (14) with a thickness of L1, the cambered surface
The maximum gauge of structure (111) is L2, and the brightness homogeneity of luminescence unit (3) is μ, if μ >=70%, L1 < L2≤2L1, if
μ < 70%, then 2L1 < L2≤3L1.
6. diffuser plate according to claim 5, which is characterized in that light mixing distance H, the two neighboring globoidal structure
(111) spacing between is L3, and the light-emitting angle of lens is α, then L3=2 (H-L2) * tan (α/2).
7. a kind of down straight aphototropism mode set, which is characterized in that including backboard (2), luminescence unit (3), supporting element (4) and such as right
It is required that the described in any item diffuser plates of 1-6 (1), the diffuser plate (1) is mounted on the backboard (2), the luminescence unit (3)
The backboard (2) bottom is all set in the supporting element (4) and is located at the incidence surface (11) one of the diffuser plate (1)
Side.
8. down straight aphototropism mode set according to claim 7, which is characterized in that the supporting element (4) be provided with it is multiple simultaneously
Positioned at the underface on the vertex of the globoidal structure (111), and between the supporting element (4) and the globoidal structure (111)
Minimum clearance is not less than 1.5mm.
9. down straight aphototropism mode set according to claim 7, which is characterized in that the luminescence unit (3) be provided with it is multiple,
And it is arranged in a one-to-one correspondence in the underface of two sections of adjacent globoidal structure (111) junctions.
10. a kind of display equipment, which is characterized in that including such as described in any item down straight aphototropism mode sets of claim 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382732.XU CN209560120U (en) | 2019-03-25 | 2019-03-25 | A kind of diffuser plate, down straight aphototropism mode set and display equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382732.XU CN209560120U (en) | 2019-03-25 | 2019-03-25 | A kind of diffuser plate, down straight aphototropism mode set and display equipment |
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| CN209560120U true CN209560120U (en) | 2019-10-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019720A (en) * | 2021-11-03 | 2022-02-08 | 惠州视维新技术有限公司 | Backlight module and display device |
| CN114647116A (en) * | 2022-04-26 | 2022-06-21 | 深圳创维－Rgb电子有限公司 | Diffusion plate structure and display device |
-
2019
- 2019-03-25 CN CN201920382732.XU patent/CN209560120U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019720A (en) * | 2021-11-03 | 2022-02-08 | 惠州视维新技术有限公司 | Backlight module and display device |
| CN114019720B (en) * | 2021-11-03 | 2024-01-19 | 惠州视维新技术有限公司 | Backlight module and display device |
| CN114647116A (en) * | 2022-04-26 | 2022-06-21 | 深圳创维－Rgb电子有限公司 | Diffusion plate structure and display device |
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