CN205539564U - Light guide plate and including backlight module and display screen of this light guide plate - Google Patents
Light guide plate and including backlight module and display screen of this light guide plate Download PDFInfo
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- CN205539564U CN205539564U CN201620358811.3U CN201620358811U CN205539564U CN 205539564 U CN205539564 U CN 205539564U CN 201620358811 U CN201620358811 U CN 201620358811U CN 205539564 U CN205539564 U CN 205539564U
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- guide plate
- light guide
- light
- optical waveguide
- waveguide layer
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Abstract
The utility model relates to an optical device technical field discloses a light guide plate, and wherein, this light guide plate includes first leaded light layer (1) and the second leaded light layer (2) that sets up range upon range ofly, and the second surface on this first leaded light layer (1) first surface and second leaded light layer (2) sets up relatively, just be provided with between first surface and the second surface at a distance from photosphere (3), first leaded light layer (1) with the opposite third of first surface surface with second leaded light layer (2) with the fourth that the second surface is opposite is provided with leaded light point on the surface respectively. Through above -mentioned technical scheme, the leaded light can both be realized to this light guide plate on two surfaces to owing to be provided with at a distance from the photosphere between two leaded light layers, make two leaded light layers to carry out the leaded light in mutual independence ground, the light of different luminance can be conducted in order to realize two leaded light layers, thereby the utilization is makeed the utility model discloses a two faces of the two -sided display screen of light guide plate manufacturing can have different resolution ratio.
Description
Technical field
This utility model relates to optical devices technologies field, in particular it relates to a kind of light guide plate and including
The backlight module of this light guide plate and display screen.
Background technology
At present, general electronic installation conventional be the themselves one-sided displays with a display screen.At certain
In a little application scenarios, need to use the two-sided display being display screen such as to communicate, government, finance,
In the business hall of the service trades such as traffic, and other public place and recreation grounds etc., so that diverse location
Can see on display shown content per capita.Ensure that the propagation degree of information to a greater extent.Logical
Cross two-sided display screen, be not only able to quickly and conveniently give out information, and can improve efficiency of service and
Transparency information.
Existing two-sided display screen generally use LCDs, the usually superposition of two display screens.
Common one side LCDs includes backlight module and crystal liquid substrate.Backlight module mainly includes setting successively
Reflector plate, light guide plate and the diffusion sheet put, and the position that backlight module is arranged always according to light source is divided into limit
Light formula backlight module and direct type backlight module.
Wherein, the light source in edge-light-type backlight module is arranged at the side of light guide plate, and light enters light guide plate
Guided by printing net-point or the micro structure of (side of the close reflector plate of light guide plate) bottom light guide plate afterwards
To the exiting surface (side of the close diffusion sheet of light guide plate.And the light source in direct type backlight module is arranged at
The lower section of display base plate, after light is via baffle reflection, light uniformly penetrates from front.Straight-down negative
The feature of backlight module is that light emission rate is high, spare part is less and module thickness is thicker.
Two-sided display screen generally uses the mode of two back-to-back superpositions of display screen, i.e. two-sided display screen bag
Include the back light part of centre and the display base plate of these backlight module both sides is set.Although for two-sided to limiting
The consideration of the thickness of display screen, two-sided display screen generally uses edge-light-type backlight module.But, two-sided aobvious
The structure of display screen itself causes the thickness of two-sided display screen relatively greatly, and relatively costly.The most how to reduce
The thickness of two-sided display screen has become in two-sided display screen technical field one big with reducing processing and manufacturing cost
Bottleneck.
At present, the back light part of general two-sided display screen generally includes two backlight modules, these two backlights
The reflector plate of module is disposed adjacently, and two respective two light sources of backlight module are separately positioned on two back ofs the body
The side of the light guide plate of optical module, and each backlight module matches with adjacent display base plate.In order to make
The thickness of two-sided display screen is the most thinning, and the two-sided display screen also having at present uses two backlight modules
Reflector plate cancel, and the light guide plate of two backlight modules is integrated into a double-sided light guide plate, and
Have only in the side of this double-sided light guide plate arrange a light source so that the thickness of two-sided display screen with become
This slightly reduces, but this minimizing is very limited.
Utility model content
The purpose of this utility model is to provide a kind of light guide plate, and this light guide plate can be the most mutual
Go out light and non-interference the most respectively.
To achieve these goals, this utility model provides a kind of light guide plate, and wherein, this light guide plate includes
First optical waveguide layer of stacking ground setting and the second optical waveguide layer, this first optical waveguide layer first surface and the second leaded light
The second surface of layer is oppositely arranged, and is provided with between described first surface and second surface every photosphere, institute
State threeth surface contrary with described first surface of the first optical waveguide layer and described second optical waveguide layer with institute
State and be respectively arranged with light guiding points on the 4th surface that second surface is contrary.
Preferably, described include every tabula rasa every photosphere, should be every two surfaces of tabula rasa respectively by transparent
Bonding glue-line is connected with described first surface and described second surface.
Preferably, described bonding glue-line includes pressure-sensing glue.
Preferably, described black pressure sensing adhesive layer is included every photosphere.
Preferably, the 3rd surface of described first optical waveguide layer is provided with the first light guiding points, from described leaded light
The first side of plate is to the second side relative with this first side, and the size of this first light guiding points is gradually reduced
And density is gradually increased.
Preferably, the 4th surface of described second optical waveguide layer is provided with the second light guiding points, from described leaded light
The second side of plate is to the first side relative with this second side, and the size of this second light guiding points is gradually reduced
And density is gradually increased.
This utility model also provides for a kind of backlight module, and wherein, this backlight module includes light source and according to this
Light guide plate described in utility model, this light source be multiple and respectively with the first side and of described light guide plate
Dual side-edge is arranged accordingly.
Preferably, described light source includes that the first light source, described first light source are set to and described light guide plate
First side is corresponding, and described first light source is arranged on described relative with described first optical waveguide layer every photosphere
The side answered.
Preferably, described light source includes that secondary light source, described secondary light source are set to and described light guide plate
Second side is corresponding, and described secondary light source is arranged on described relative with described second optical waveguide layer every photosphere
The side answered.
Another purpose of the present utility model is to provide a kind of display screen, and wherein, this display screen includes basis
Backlight module described in the utility model, the both sides of this backlight module are respectively arranged with crystal liquid substrate.
Light guide plate of the present utility model includes that two optical waveguide layers and being clipped between these two optical waveguide layers are provided with
It is both provided with light guiding points on photosphere, and two surfaces of this light guide plate.By technique scheme,
This light guide plate can realize leaded light on both surfaces, and owing to being provided with every light between two optical waveguide layers
Layer so that two optical waveguide layers can carry out leaded light independently of each other, can conduct realizing two optical waveguide layers
The light of different brightness, so that utilize two of the two-sided display screen that light guide plate of the present utility model manufactures
Face can have different resolution.
Other features and advantages of the utility model will give in detailed description of the invention part subsequently in detail
Explanation.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes one of description
Point, it is used for explaining this utility model together with detailed description below, but is not intended that this practicality
Novel restriction.In the accompanying drawings:
Fig. 1 is the reflector according to a kind of preferred implementation of this utility model and the schematic diagram of light source；
Fig. 2 is the reflector according to this utility model another kind preferred implementation and the schematic diagram of light source.
Description of reference numerals
1 first optical waveguide layer；2 second optical waveguide layers；3 every photosphere；31 first pressure sensing adhesive layer；32 second
Pressure sensing adhesive layer；33 every tabula rasa；4 first light sources；5 secondary light sources；61 first light guiding points；62
Two light guiding points.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It is to be understood that
It is that detailed description of the invention described herein is merely to illustrate and explains this utility model, is not used to limit
This utility model processed.
In this utility model, in the case of illustrating on the contrary, the noun of locality of use should be in conjunction with reality
The state during application of border and the direction in Figure of description suitably understand.
This utility model also provides for a kind of light guide plate, wherein, this light guide plate arrange with including stacking first
Optical waveguide layer 1 and the second optical waveguide layer 2, this first optical waveguide layer 1 first surface and the second of the second optical waveguide layer 2
Surface is oppositely arranged, and is provided with every photosphere 3 between described first surface and second surface, and described first
Threeth surface contrary with described first surface of optical waveguide layer 1 and described second optical waveguide layer 2 with described
It is respectively arranged with light guiding points on the 4th surface that two surfaces are contrary.
Preferably, the effect of optical waveguide layer is the scattering method of direct light, is used for improving the brightness of panel,
And guarantee the uniformity of panel luminance.Optical waveguide layer is the method utilizing such as ejection formation, is suppressed by propylene
Become ganoid plate, then with having the material of high reflection and not extinction, use in the bottom surface of optical waveguide layer
The mode of screen painting or other non-printing modes arrange diffusion point.
And from the point of view of photosphere is with regard to its function, mainly make the light in the first optical waveguide layer 1 and the second optical waveguide layer 2
Separated from one another, therefore, plate can be formed as every photosphere, the surface of this plate has the particle of reflection light
Or light absorbing black material.
According to the structure of light guide plate of the present utility model, it is arranged on the first optical waveguide layer 1 and second every photosphere 3
Between optical waveguide layer 2, and the first optical waveguide layer 1, every photosphere 3 and the second optical waveguide layer 2 for stacking gradually
Laminated structure, and the first optical waveguide layer 1, identical and mutual with the area of the second optical waveguide layer 2 every photosphere 3
Corresponding.So, in the first optical waveguide layer 1 and the second optical waveguide layer 2 light of transmission just by complete every photosphere 3
Fully separating open without being mutually mixed.
The light of light source has respectively entered the first optical waveguide layer 1 and the second optical waveguide layer 2, and leads from first respectively
The light guiding points injection on the 3rd surface of photosphere 1 and the 4th surface of the second optical waveguide layer 2.Light guiding points can be by
In optical waveguide layer, the light of transmission guides the light injection of the exiting surface for being perpendicular to reflector, and i.e. first is guide-lighting
Light guiding points on 3rd surface of layer 1 makes the light of the first optical waveguide layer 1 derivation for being perpendicular to the 3rd table
Face, the light that the light guiding points on the 4th surface of the second optical waveguide layer 2 makes the second optical waveguide layer 2 derive is vertical
Straight in the 4th surface.
As can be seen here, light guide plate of the present utility model include two optical waveguide layers and be clipped in these two optical waveguide layers it
Between be provided with and be both provided with light guiding points on photosphere, and two surfaces of this light guide plate.By above-mentioned skill
Art scheme, this light guide plate can realize leaded light on both surfaces, and owing to setting between two optical waveguide layers
It is equipped with every photosphere so that two optical waveguide layers can carry out leaded light independently of each other, to realize two optical waveguide layers
The light of different brightness can be conducted, so that utilize the double-sided display that light guide plate of the present utility model manufactures
Two faces of screen can have different resolution.
Preferably, described include every tabula rasa 33 every photosphere 3, should lead to respectively every two surfaces of tabula rasa 33
Cross transparent bonding glue-line to be connected with described first surface and described second surface.In this preferred implementation
In, use gluing mode and the first surface of the first optical waveguide layer 1 and the second optical waveguide layer 2 every tabula rasa 33
Second surface connect.
Preferably, described bonding glue-line includes pressure-sensing glue.Pressure-sensing glue refers to impose and is slightly compressed to the shortest time
The binding agent of body surface can be adhered to.Pressure-sensing glue is in the application in display pannel field, except glutinous
Put forth effort and outside weatherability, an optic requirement big emphasis especially, as transparent in optics pressure-sensing glue needs,
Colourless, color inhibition.Pressure-sensing glue herein can by use in prior art any suitable in the way of and material system
Becoming, this is not any limitation as by this utility model.Such as, generally by the pressure-sensitive of acrylic system in prior art
Glue is used for photovoltaic, and acrylic system pressure-sensing glue price has from low to high, variant according to processing mode.
Owing to the character modulation of acrylic pressure-sensing glue is easy, therefore application is good, and it is transparent, weather-proof to have color
Property the advantage such as good.Preferably, as it is shown in figure 1, pass through the first pressure-sensitive every a surface of tabula rasa 33
Glue-line 31 is connected with the first optical waveguide layer 1, and another surface is guide-lighting by the second pressure sensing adhesive layer 32 and second
Layer 2 connects.
It addition, as shown in Figure 2, it is preferable that described include black pressure sensing adhesive layer 34 every photosphere 3.This is black
Color pressure sensing adhesive layer 34 includes the pressure-sensing glue of black, on the one hand can lead by direct first optical waveguide layer 1 and second
Photosphere 2 bonds together, and on the other hand the pressure-sensing glue of black can play the function of extinction, it is to avoid light
Light in first optical waveguide layer 1 and the second optical waveguide layer 2 arrives offside and produces the mixing of light.
Light guide plate of the present utility model is mainly used in the backlight module of LCDs.Correspondingly, originally
Utility model also provides for a kind of backlight module including this light guide plate, and wherein, this backlight module includes light source
With according to light guide plate described in the utility model, this light source be multiple and respectively with the first of described light guide plate
Side and second side are arranged accordingly.
The main effect of backlight module is to guide the light of light source to crystal liquid substrate.Specifically, light source is sent out
The light gone out first respectively through the first optical waveguide layer 1 and the second optical waveguide layer 2 of light guide plate, and by this first
Optical waveguide layer 1 and the second optical waveguide layer 2 guide the surface being provided with light guiding points to light guide plate, and i.e. first is guide-lighting
3rd surface of layer 1 and the 4th surface of the second optical waveguide layer 2.
Owing to being provided with every photosphere 3 between the first optical waveguide layer 1 and the second optical waveguide layer 2, light can not be from
The first surface of one optical waveguide layer 1 is delivered to the second surface of the second optical waveguide layer 2, the most of the present utility model
Backlight module includes light source corresponding with the first optical waveguide layer 1 and the second vessel layers 2 respectively.
Preferably, described light source includes that the first light source 4, described first light source 4 are set to and described leaded light
The first side of plate is corresponding, and described first light source is arranged on described guide-lighting with described first every photosphere 3
Layer 1 corresponding side.
And, it is preferable that described light source includes that secondary light source 5, described secondary light source 5 are set to and institute
The second side stating light guide plate is corresponding, described secondary light source be arranged on described every photosphere 3 with described the
The side that two optical waveguide layers 1 are corresponding.
In the preferred embodiment, each optical waveguide layer is corresponding with a light source respectively.Specifically,
One light source 4 is set to corresponding with the first side of the first optical waveguide layer 1, so, the first light source 4 sends
Light enter the first optical waveguide layer 1 and can from the first optical waveguide layer 1 the 3rd surface injection；Secondary light source
5 be set to corresponding with the second side of the second optical waveguide layer 2, so, the light that secondary light source 5 sends
Enter the second optical waveguide layer 1 and can penetrate from the 4th surface of the second optical waveguide layer.As can be seen here, this practicality
Novel backlight module utilizes the first light source 4 and secondary light source 5 to lead with the first optical waveguide layer 1 and second respectively
Photosphere 2 is irradiated accordingly, so that backlight module can go out light on both faces.
Therefore, the first light source 4 can use the light source that brightness is different, preferably LED with secondary light source 5
Light source, so makes by the first optical waveguide layer 1 different with the light luminance that the second optical waveguide layer 2 conducts.Right
For LCDs, the resolution of display screen is the highest, it is necessary to the light-source brightness of backlight module is the highest.
Therefore, the backlight module including reflector of the present utility model can be applicable to different the showing of two sides resolution
Show device so that two liquid crystal surface of the two-sided display screen that this utility model can be provided by can have different
Resolution, it is adaptable to multiple different needs.
And, it is preferable that the first side of this light guide plate and relative a pair that second side is light guide plate
Side, say, that the first light source 4 and secondary light source 5 are oppositely disposed at the both sides of light guide plate.
According to preferred implementation mentioned above, it is preferable that the 3rd surface of described first optical waveguide layer 1
On be provided with the first light guiding points 61, from the first side of described light guide plate to relative with this first side second
Side, the size of this first light guiding points 61 is gradually reduced and density is gradually increased.
Preferably, the 4th surface of described second optical waveguide layer 2 is provided with the second light guiding points 62, from described
The second side of light guide plate to the first side relative with this second side, the size of this second light guiding points 62
It is gradually reduced and density is gradually increased.
The principle so arranging light guiding points is in order at the sectional area of light guiding points, size and density and injection light
Brightness is closely related.Specifically, the density of light guiding points is the highest, brightness is more concentrated, and the brightness of injection light is more
Greatly.Therefore, this preferred implementation correspondingly arranges the exiting surface of light guide plate (i.e. according to above-mentioned principle
3rd surface of the first optical waveguide layer 1 and the 4th surface of the second optical waveguide layer 2) on light guiding points density, i.e.
The light guiding points of the exiting surface of light guide plate is disposed remotely from the side leaded light than the side of close light source of light source
Point smaller and density is bigger.That is, from the second side away from the first light source to being provided with the first light
The first side in source, the size of the first light guiding points 61 on the 3rd surface of the first optical waveguide layer is gradually reduced
And density is gradually increased；From the first side away from secondary light source to the second side being provided with secondary light source
Limit, the size of the second light guiding points 62 on the 4th surface of the second optical waveguide layer be gradually reduced and density gradually
Increase.
It addition, this utility model also provides for a kind of display screen, wherein, this display screen includes according to this practicality
Novel described backlight module, the both sides of this backlight module are respectively arranged with crystal liquid substrate.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing, but, this practicality is new
Type is not limited to the detail in above-mentioned embodiment, in technology concept of the present utility model,
The technical solution of the utility model can be carried out multiple simple variant, these simple variant belong to this reality
With novel protection domain.
It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, various possible compound modes are illustrated by this utility model the most separately.
Additionally, combination in any can also be carried out between various different embodiment of the present utility model, only
Wanting it without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a light guide plate, it is characterised in that the first optical waveguide layer that this light guide plate is arranged with including stacking
(1) and the second optical waveguide layer (2), this first optical waveguide layer (1) first surface and the second optical waveguide layer (2)
Second surface be oppositely arranged, and be provided with every photosphere (3) between described first surface and second surface,
Threeth surface contrary with described first surface of described first optical waveguide layer (1) and described second optical waveguide layer
(2) it is respectively arranged with light guiding points on the 4th surface contrary with described second surface.
Light guide plate the most according to claim 1, it is characterised in that described include every photosphere (3)
Every tabula rasa (33), should every two surfaces of tabula rasa (33) respectively by transparent bonding glue-line with described
First surface and described second surface connect.
Light guide plate the most according to claim 2, it is characterised in that described bonding glue-line includes sense
Moulding.
Light guide plate the most according to claim 1, it is characterised in that described include every photosphere (3)
Black pressure sensing adhesive layer (34).
Light guide plate the most according to claim 1, it is characterised in that described first optical waveguide layer (1)
The 3rd surface on be provided with the first light guiding points (61), from the first side of described light guide plate to this
The second side that side is relative, the size of this first light guiding points (61) is gradually reduced and density is gradually increased.
Light guide plate the most according to claim 1, it is characterised in that described second optical waveguide layer (2)
The 4th surface on be provided with the second light guiding points (62), from the second side of described light guide plate to this
The first side that two sides are relative, the size of this second light guiding points (62) is gradually reduced and density is gradually increased.
7. a backlight module, it is characterised in that this backlight module includes light source and according to aforesaid right
Require the light guide plate described in any one in 1-6, this light source be multiple and respectively with the of described light guide plate
One side and second side are arranged accordingly.
Backlight module the most according to claim 7, it is characterised in that described light source includes first
Light source (4), described first light source (4) is set to corresponding with the first side of described light guide plate, institute
State the first light source and be arranged on described every the side corresponding with described first optical waveguide layer (1) of photosphere (3).
Backlight module the most according to claim 7, it is characterised in that described light source includes second
Light source (5), described secondary light source (5) is set to corresponding with the second side of described light guide plate, institute
State secondary light source and be arranged on described every the side corresponding with described second optical waveguide layer (1) of photosphere (3).
10. a display screen, it is characterised in that this display screen includes according in the claims 7-9
Backlight module described in any one, the both sides of this backlight module are respectively arranged with crystal liquid substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358811.3U CN205539564U (en) | 2016-04-26 | 2016-04-26 | Light guide plate and including backlight module and display screen of this light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358811.3U CN205539564U (en) | 2016-04-26 | 2016-04-26 | Light guide plate and including backlight module and display screen of this light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539564U true CN205539564U (en) | 2016-08-31 |
Family
ID=56797598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620358811.3U Active CN205539564U (en) | 2016-04-26 | 2016-04-26 | Light guide plate and including backlight module and display screen of this light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759342A (en) * | 2016-04-26 | 2016-07-13 | 东旭（昆山）显示材料有限公司 | Light guide plate, backlight module comprising the light guide plate and display screen |
-
2016
- 2016-04-26 CN CN201620358811.3U patent/CN205539564U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759342A (en) * | 2016-04-26 | 2016-07-13 | 东旭（昆山）显示材料有限公司 | Light guide plate, backlight module comprising the light guide plate and display screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230602 Address after: 241000 No.36 weier'er Road, Wanchun street, Wuhu Economic and Technological Development Zone, Anhui Province Patentee after: WUHU TUNGHSU PHOTOELECTRIC SCIENCE AND TECHNOLOGY Co.,Ltd. Patentee after: TUNGHSU GROUP Co.,Ltd. Patentee after: TUNGHSU TECHNOLOGY GROUP Co.,Ltd. Address before: Room 1517, Building 1 (International Building), No. 167, Qianjin Middle Road, Kunshan Development Zone, Suzhou City, Jiangsu Province, 215000 Patentee before: DONGXU (KUNSHAN) DISPLAY MATERIAL Co.,Ltd. Patentee before: TUNGHSU GROUP Co.,Ltd. Patentee before: TUNGHSU TECHNOLOGY GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |