CN109307902A - A kind of light guide plate and the light-conducting system using this light guide plate - Google Patents
A kind of light guide plate and the light-conducting system using this light guide plate Download PDFInfo
- Publication number
- CN109307902A CN109307902A CN201710630824.0A CN201710630824A CN109307902A CN 109307902 A CN109307902 A CN 109307902A CN 201710630824 A CN201710630824 A CN 201710630824A CN 109307902 A CN109307902 A CN 109307902A
- Authority
- CN
- China
- Prior art keywords
- light guide
- light
- guide plate
- concave point
- plate body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
A kind of light guide plate, comprising: light conducting plate body；The side of the light conducting plate body is arranged in reflective membrane；At least one concave point is arranged on a side surface of the light conducting plate body；The light conducting plate body is arranged in towards on a side surface of the reflective membrane at least one described concave point.
Description
Technical field
The present invention relates to a kind of leaded light component, especially a kind of light guide plate.
Background technique
It is current in the market, using light guide plate illuminate lingual surface instrument be substantially divided into two kinds.The first is as shown in Figure 1, adopt
The light guide plate of point light source is uniformly distributed with the inner surface of integrating sphere shell 1.Face is placed on the position in hole 2, is emitted by light guide plate
Light face is illuminated.Second as shown in Figure 2 A, and Fig. 2A is the light guide plate of U-typed.The light guide plate is placed on face
Opposite.Face is illuminated by the U-typed light guide plate.However there are the following problems for the illumination of both light guide plates:
For the light guide plate of the first integrating sphere distribution, the intensity of illumination for the plane that face is located at is uneven.It is right
For second of U-typed light guide plate, as shown in Figure 2 B, Fig. 2 B is the top view of U-typed light guide plate.The light of U-typed light guide plate
Line carries out diffusing reflection propagation along direction shown in arrow in light guide plate.Since light intensity during propagation can be
Loss, therefore the light for more arriving the inside just becomes darker.If loading light source simultaneously in the two sides of U-typed light guide plate, just
Will lead to from cross section AB irradiant in light guide plate, the light intensity on direction from A to B is first to increase, after subtract
It is few, it is further added by.The illumination of i.e. second U-typed light guide plate is also non-uniform.
Summary of the invention
To solve the above problems, An embodiment provides a kind of light guide plates, comprising: light conducting plate body；Instead
The side of the light conducting plate body is arranged in light film；A side surface of the light conducting plate body is arranged at least one concave point
On.
Above-mentioned light guide plate, further includes: even smooth film, the even smooth film are arranged in the light conducting plate body far from described reflective
On one side surface of film.
Above-mentioned light guide plate, the concave point be arranged in a matrix in the light conducting plate body and two adjacent rows described in concave point
It is interspersed.
Above-mentioned light guide plate, from the two sides of the light guide plate to the direction of the centre of the light guide plate on, the concave point
Arranging density is become larger by small.
Above-mentioned light guide plate, from the two sides of the light guide plate to the direction of the centre of the light guide plate on, the concave point
Shape gradually becomes dotted by strip, and the direction of the strip is vertical with the light direction of propagation.
Above-mentioned light guide plate, the light conducting plate body with a thickness of 5mm or 7mm, the depth of the concave point is 0.1mm.
Above-mentioned light guide plate, the vertical tangent plane of the concave point are U-typed.
Above-mentioned light guide plate, distribution density of the concave point in the light conducting plate body contain 18- to be every square centimeter
22 concave points.
To solve the above problems, one embodiment of the present of invention additionally provides a kind of light-conducting system, it include two above-mentioned
Light guide plate described in meaning one, described two light guide plates are not parallel, and described two light guide plates are distributed at axial symmetry, the leaded light
Meet following formula in system:
And
Wherein, a is the end-point distances at both ends similar in described two light guide plates, and b is the width of described two light guide plates, c
For the width of the intersection of the directional light of described two light guide plates sending, straight line of the d where the endpoint line to the friendship
The distance in remittance face, θ are wherein any one acute angle between the straight line where the endpoint line of described two light guide plates
Angle.
Compared with prior art, the incident ray of light guide plate provided by the present invention will be along light guide plate from upper and lower two sides
Into.Therefore, the light intensity of vertical direction is identical in light guide plate.Due to being covered with concave point on light guide plate, work as light certainly
Light guide plate is injected in upper and lower two sides, and light can be projected outwardly by each concave point.Therefore, each concave point becomes one
Point light source.A light-conductive holes up to ten thousand it have been covered on light guide plate, i.e., entire light guide plate is exactly one and possesses up to ten thousand equally distributed points
The light source matrix of light source.Therefore the light that entire light guide plate outwardly emits is uniform.
Light-conducting system provided herein simultaneously, including at least two light guide plates.As long as light guide plate is arranged at axial symmetry
When, the light intensity for meeting at any one place of the light on plane AB is all the same.When the position of face is located on plane AB,
Then no matter how the brightness of incident light changes, and the intensity of illumination that face is received is uniform always.
Detailed description of the invention
Fig. 1-Fig. 2 B is the schematic diagram of light guide plate in the prior art；
Fig. 3 A-3C is the schematic diagram of the light guide plate in an embodiment according to the present invention；
Fig. 4 A- Fig. 4 C be according to an embodiment of the present invention in light guide plate sectional view；
Fig. 5 is the schematic diagram of the light-conducting system in an embodiment according to the present invention.
Wherein, appended drawing reference:
1: light conducting plate body
2: reflective membrane
3: concave point
4: light
5: even smooth film
AB: plane
Specific embodiment
Fig. 3 is the schematic diagram of the light guide plate in an embodiment according to the present invention.Fig. 4 A- Fig. 4 C is according to an embodiment of the present invention
In light guide plate sectional view.Please refer to Fig. 3 A- Fig. 4 C, in one embodiment of the invention, light guide plate includes: light conducting plate body 1, reflective
Film 2 and at least one concave point 3.Wherein the side of the light conducting plate body 1 is arranged in reflective membrane 2.Concave point 3 is arranged in light guide plate sheet
On one side surface of body 1.When incident light enters light guide plate, incident light will scatter outward at each concave point.In this way, every
A concave point 3 is all a point light source.I.e. entire light guide plate is exactly the luminous matrix for containing multiple point light sources.If concave point 3
It is uniformly, then entire light guide plate, which is exactly one, contains multiple point light being evenly distributed in the distribution in light conducting plate body 1
The luminous matrix in source.Therefore, the light that entire light guide plate is issued all is just uniform.Therefore, in one embodiment of the application,
Concave point 3 is in light conducting plate body 1 at uniform matrix arrangement.
In one embodiment of the application, light conducting plate body 1 is arranged in towards on a side surface of the reflective membrane in concave point 3.
I.e. concave point 3 is clipped in the middle by light conducting plate body 1 and reflective membrane.
In order to enable the light that light guide plate is launched is softer, human eye is not stimulated, the light guide plate in one embodiment of the application
It further include even smooth film 5.Light conducting plate body 1 is arranged in far from a side surface of reflective membrane 2 in even smooth film 5.
In order to further such that the light that is issued of entire light guide plate is uniform, in one embodiment of the application, adjacent two
The row concave point is interspersed.(as shown in 3B)
Since light has fraction of loss during traveling to centre by the two sides of light guide plate, i.e., more arrive middle position
Light it is darker.Come although naked eyes can not be identified at all, in order to achieve the purpose that the emergent light absolute uniform of light guide plate,
In one embodiment of the application, from the two sides of light conducting plate body 1 to the direction of the centre of light conducting plate body 1 on, the arrangement of concave point 3 is close
Degree is become larger by small.Middle position is more arrived, concave point 3 is more intensive.Because concave point 3 is more intensive, it is meant that point light source is more.
Therefore, it can use the quantity of point light source to make up the loss of light.
In addition, in order to enable loss reduction as far as possible of light during traveling to centre by the two sides of light guide plate,
In one embodiment of the application, from the two sides of light conducting plate body 1 to the direction of the centre of light conducting plate body 1 on, the shape of concave point 3
Gradually become dotted by strip, and the direction of strip is vertical with the light direction of propagation.(as shown in Figure 3 C) is because concave point 3 is
A hollow structure, and light conducting plate body 1 is the structure of an opposing solid.Light is lost in the concave point 3 for passing through hollow structure
Energy be centainly less than the energy being lost across the light conducting plate body 1 of opposing solid structure.And the concave point 3 of more strip,
The hollow space for being included is bigger, and for light when passing through, loss is also just smaller.It is worth noting that, described here
Strip concave point 3 is not limited in rectangle or ellipse, as long as Aspect Ratio is not the shape of 1:1, belongs to this Shen
It please be in range claimed.
In one embodiment of the application, light conducting plate body 1 with a thickness of 5mm or 7mm, the depth of concave point 3 is 0.1mm.
In one embodiment of the application, the vertical tangent plane of concave point 3 is U-typed.(as shown in Figure 4 A) however be not limited thereto,
The concave point (rule or irregular shape) of any section shape belongs in the application range claimed.(Fig. 4 B institute
It is trapezoidal etc. shown in the rectangular and 4C shown)
In order to reach optimal illuminating effect, in one embodiment of the application, distribution of the concave point 3 in light conducting plate body 1
Density contains 18-22 concave point to be every square centimeter.
Fig. 5 is the schematic diagram of the light-conducting system in an embodiment according to the present invention.Referring to figure 5., light-conducting system includes extremely
Few two light guide plates described above.
For comprising two light guide plates, two light guide plates are not parallel and two light guide plates are distributed at axial symmetry.Due to only
When two light guide plates being wanted to arrange at axial symmetry, the intensity for meeting at the light 4 at any one place of the light on plane AB is all the same.
By the position of face) when being located on plane AB, then no matter how the brightness of incident light changes, and intensity of illumination that face is received begins
It is uniform eventually.
Assuming that the distance between the endpoint C and D at both ends similar in two light guide plates are a, the width of two light guide plates is b,
The width of the intersection AB for the directional light that two light guide plates issue is c, and the distance of straight line CD to intersection AB is d, two leaded lights
Wherein any one acute angle between straight line CD of plate is θ.So in order to reach optimal illumination effect, in light-conducting system
Parameters should meet following formula:
And
Compared with prior art, the incident ray of light guide plate provided by the present invention will be along light guide plate from upper and lower two sides
Into.Therefore, the light intensity of vertical direction is identical in light guide plate.Due to being covered with concave point on light guide plate, work as light certainly
Light guide plate is injected in upper and lower two sides, and light can be projected outwardly by each concave point.Therefore, each concave point becomes one
Point light source.A light-conductive holes up to ten thousand it have been covered on light guide plate, i.e., entire light guide plate is exactly one and possesses up to ten thousand equally distributed points
The light source matrix of light source.Therefore the light that entire light guide plate outwardly emits is uniform.
Light-conducting system provided herein simultaneously, including at least two light guide plates.As long as light guide plate is arranged at axial symmetry
When, the light intensity for meeting at any one place of the light on plane AB is all the same.When the position of face is located on plane AB,
Then no matter how the brightness of incident light changes, and the intensity of illumination that face is received is uniform always.
Claims (10)
1. a kind of light guide plate characterized by comprising
Light conducting plate body；
The side of the light conducting plate body is arranged in reflective membrane；
At least one concave point is arranged on a side surface of the light conducting plate body.
2. light guide plate as described in claim 1, which is characterized in that at least one described concave point is arranged in the light conducting plate body
Towards on a side surface of the reflective membrane.
3. light guide plate as claimed in claim 2, which is characterized in that further include:
The light conducting plate body is arranged in far from a side surface of the reflective membrane in even smooth film, the even smooth film.
4. light guide plate as claimed in claim 2, which is characterized in that the concave point is arranged in the light conducting plate body at matrix
Column, and concave point described in two adjacent rows is interspersed.
5. light guide plate as claimed in claim 4, which is characterized in that from the two sides of the light guide plate to the centre of the light guide plate
Direction on, the arranging density of the concave point is become larger by small.
6. light guide plate as claimed in claim 4, which is characterized in that from the two sides of the light guide plate to the centre of the light guide plate
Direction on, the shape of the concave point gradually becomes dotted by strip, and the direction of the strip and the light direction of propagation
Vertically.
7. light guide plate as claimed in claim 4, which is characterized in that the light conducting plate body with a thickness of 5mm or 7mm, it is described
The depth of concave point is 0.1mm.
8. light guide plate as claimed in claim 4, which is characterized in that the vertical tangent plane of the concave point is U-typed.
9. light guide plate as claimed in claim 4, which is characterized in that distribution density of the concave point in the light conducting plate body
Contain 18-22 concave point to be every square centimeter.
10. a kind of light-conducting system, which is characterized in that it include two light guide plates as described in any one of claims 1-9, it is described
Two light guide plates are not parallel, and described two light guide plates are distributed at axial symmetry, and following formula is met in the light-conducting system:
And
Wherein, a is the end-point distances at both ends similar in described two light guide plates, and b is the width of described two light guide plates, and c is institute
State the width of the intersection of the directional light of two light guide plates sending, straight line of the d where the endpoint line to the intersection
Distance, θ is wherein any one acute angle between the straight line where the endpoint line of described two light guide plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630824.0A CN109307902A (en) | 2017-07-28 | 2017-07-28 | A kind of light guide plate and the light-conducting system using this light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630824.0A CN109307902A (en) | 2017-07-28 | 2017-07-28 | A kind of light guide plate and the light-conducting system using this light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109307902A true CN109307902A (en) | 2019-02-05 |
Family
ID=65205215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710630824.0A Pending CN109307902A (en) | 2017-07-28 | 2017-07-28 | A kind of light guide plate and the light-conducting system using this light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109307902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646877A (en) * | 2019-10-31 | 2020-01-03 | 甘肃万华网络信息有限公司 | A light-emitting module and light-emitting assembly |
-
2017
- 2017-07-28 CN CN201710630824.0A patent/CN109307902A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646877A (en) * | 2019-10-31 | 2020-01-03 | 甘肃万华网络信息有限公司 | A light-emitting module and light-emitting assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9766391B2 (en) | Light guide plate and light source module | |
| TWI575266B (en) | Light guide plate, light source module and display device | |
| US9778405B2 (en) | Light guide plate and light source module | |
| US6164791A (en) | Backlight source device | |
| US10324246B2 (en) | Lighting display device and light guide body | |
| CN105276441A (en) | Spread illuminating apparatus | |
| TW201142208A (en) | Backlight module | |
| US20160238777A1 (en) | Light guide plate ,light source module and display device | |
| CN105393051A (en) | Lightguides | |
| US20150260897A1 (en) | Light guide plate, backlight source assembly and display apparatus | |
| US20130242602A1 (en) | Light guide plate and backlight module | |
| US10185071B2 (en) | Light guide plate, backlight module and display device | |
| CN109307902A (en) | A kind of light guide plate and the light-conducting system using this light guide plate | |
| CN108562963A (en) | Light guide plate | |
| CN104776397B (en) | Light guide plate and light source module | |
| US7295261B2 (en) | Light guide plate with W-shaped structures and backlight module using the same | |
| CN104482501B (en) | An optical element, optical module and lighting device | |
| US20130135897A1 (en) | Back light unit | |
| TWI522665B (en) | Light guide plate and backlight module | |
| CN207895100U (en) | Light guide plate | |
| US9557469B2 (en) | Light guide plate, backlight module and display device | |
| TWI557451B (en) | Light guide plate and processing method thereof | |
| CN205787197U (en) | a light guide plate | |
| TWI514018B (en) | Light guiding plate and backlight module using the same | |
| JP5034984B2 (en) | Backlight device and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190205 |
|
| WD01 | Invention patent application deemed withdrawn after publication |