CN209606654U - A kind of light guide plate - Google Patents
A kind of light guide plate Download PDFInfo
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- CN209606654U CN209606654U CN201920447727.2U CN201920447727U CN209606654U CN 209606654 U CN209606654 U CN 209606654U CN 201920447727 U CN201920447727 U CN 201920447727U CN 209606654 U CN209606654 U CN 209606654U
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- light
- guide plate
- light guide
- plate body
- conducting plate
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Abstract
The utility model provides a kind of light guide plate comprising light conducting plate body, plural micro-nano structure and light source, light conducting plate body include a light-emitting surface and at least one incidence surface；Light source is located at the incidence surface side of light conducting plate body；Plural micro-nano structure, its light-emitting surface side for being located at light conducting plate body or light-emitting surface opposite side, wherein plural micro-nano structure includes straight line portion and bending part, bending part extends to the incidence surface edge of light conducting plate body and assembles towards point source, to make light be converted into uniform light incident, it avoids light guide plate from light and dark shadow occur, eliminates the stain of light guide plate, improve liquid crystal display in the clarity of edge image.
Description
Technical field
The utility model relates to back light model setting technology field, in particular to a kind of light guide plate.
Background technique
Due to the development of information technology, the demand of various display devices for displaying images is constantly being expanded, with
The development of liquid crystal display, important component of the backlight module as liquid crystal display, its role is to well-off brightness
And the light source being evenly distributed is provided, it can normally show image.Backlight module generally comprises light source, light guide plate, optical diaphragm
And at least one frame or chassis as support construction, it is used to support the side and the back side of display device.Backlight module according to
Irradiation source incoming position difference is divided into side incident type and straight-down negative, and side injection type backlight mould group refers to that the one of light guide plate is arranged in light source
Side, in the backlight module of small-medium size, side incident type the advantage is that for straight-down negative, first is that can be used less
LED crystal grain, save cost and allow the rear of TV liquid crystal display panel not need to configure second is that more frivolous fuselage can be made
LED module, and it is located in side, the thickness of screen entirety can be reduced.
Effect of the light guide plate in backlight module is uniformly to guide point light source to entire visible area display device plane,
Wherein light guide plate further includes to enable light uniformly from light-emitting surface sending and in the preformed pattern of light guide plate plane.Now,
Light source is generally point light source, therefore, visible area edge light issue light will form it is light and dark, if having in incidence surface
Light and dark situation will lead to these products and occur that light is uneven, and fogging image is not able to satisfy the demand of people.
Utility model content
Based on this, the utility model provides a kind of light guide plate to solve the above problems.
A kind of technical solution of light guide plate of the utility model is:
A kind of light guide plate comprising:
Light conducting plate body, the light conducting plate body include a light-emitting surface and at least one incidence surface；
Light source, the light source are located at the incidence surface side of the light conducting plate body；
Plural micro-nano structure, it is described plural number micro-nano structure be located at the light conducting plate body light-emitting surface side or light-emitting surface it is opposite
Side, wherein the plural number micro-nano structure includes straight line portion and bending part, the bending part extends to the light guide plate sheet
The incidence surface edge of body, the bending part are assembled towards at the light source.
In one embodiment, the bending part of the plural micro-nano structure is arc, s shape, fold-line-shaped, wave linear shape
Or one or more kinds of combinations in irregular curve shape.
In one embodiment, the light-emitting surface includes visible area and invisible range, the incidence surface be set to it is described not
Visible area is far from the visible area side.
In one embodiment, the invisible range is symmetrical arranged, and at least there is a bending part positioned at described
Invisible range, the straight line portion are equally distributed in the visible area.
In one embodiment, the plural micro-nano structure is plural bulge-structure and/or sunk structure setting.
In one embodiment, the plural bulge-structure and/or sunk structure interval and/or continuous setting.
In one embodiment, the section of the plural bulge-structure and/or sunk structure is arc, semicircle, three
The combination of one or more of angular or polygon.
In one embodiment, the single micro-nano structure is a cylindrical mirror setting, small short-term or lenticule arrangement
Be in line part and bending part setting.
In one embodiment, the light guide plate further includes the first adhesive layer, and first adhesive layer is located at the light
Between source and light conducting plate body incidence surface side.
In one embodiment, the light guide plate includes bearing bed, and the plural number micro-nano structure is located at the bearing bed
Side far from the light conducting plate body.
In one embodiment, the light guide plate further includes the second adhesive layer, the bearing bed and the light guide plate sheet
Second adhesive layer is additionally provided between body.
In one embodiment, the light guide plate further includes reflecting layer, and the reflecting layer is located at the light conducting plate body
It is equipped with the ipsilateral or opposite side of the plural micro-nano structure.
The utility model has the beneficial effects that a kind of light guide plate provided by the utility model, in the incidence surface of light conducting plate body
Side using the bending part of plural micro-nano structure extend to light conducting plate body incidence surface edge and bending part towards light source assemble,
Played the role of using plural micro-nano structure it is guide-lighting so that the light of light source is dispersed, so that light be made to be converted into uniform light incident,
Shadow light and dark existing for light guide plate is eliminated, improves liquid crystal display in the clarity of edge image.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of light guide plate of the utility model；
Fig. 2 is A-A ' cross section structure schematic diagram in the utility model Fig. 1；
Fig. 3 is a kind of another structural schematic diagram of light guide plate of the utility model；
Fig. 4 is a kind of another structural schematic diagram of light guide plate of the utility model；
Fig. 5 is a kind of another structural schematic diagram of light guide plate of the utility model；
Fig. 6 is a kind of another structural schematic diagram of light guide plate of the utility model；
Fig. 7 is a kind of another cross section structure schematic diagram of light guide plate of the utility model；
Fig. 8 is a kind of another cross section structure schematic diagram of light guide plate of the utility model；
Fig. 9 is a kind of another cross section structure schematic diagram of light guide plate of the utility model；
Specific embodiment
It is easy to understand the utility model, utility model is described more fully below with reference to relevant drawings.
The better embodiment of the utility model is given in attached drawing.But the utility model can by many different forms come
It realizes, however it is not limited to embodiment disclosed below.On the contrary, the purpose of providing these embodiments is that making practical new to this
The disclosure of type understands more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" packet
Include any and all combinations of one or more related listed items.
The utility model provides a kind of light guide plate comprising light conducting plate body, plural micro-nano structure and light source, light guide plate
Ontology includes a light-emitting surface and at least one incidence surface；Light source is located at the incidence surface side of light conducting plate body；Plural micro-nano structure,
Its light-emitting surface side for being located at light conducting plate body or light-emitting surface opposite side, wherein plural micro-nano structure includes straight line portion and bending section
Point and bending part extend to the incidence surface edge of light conducting plate body, bending part is assembled towards light source, so that light be made to be converted into
Uniform light incident avoids light guide plate from light and dark shadow occur, eliminates the stain of light guide plate, improves liquid crystal display at edge
The clarity of image.
Wherein in an embodiment, light conducting plate body includes at least an incidence surface, and the light of light source is allow to enter light guide plate
Ontology, light source are point light source or strip-shaped light source；In other modes, the light conducting plate body may also include two or more and enter light
Face, the incidence surface can be disposed adjacent or be oppositely arranged.
Wherein in an embodiment, light-emitting surface includes visible area and invisible range, and incidence surface is set to invisible range far from described
Visible area side, invisible range be it is arranged symmetrically, at least there is bending part and be set to invisible range.
Wherein in an embodiment, micro-nano structure can for entire cylindrical mirror, small short-term or lenticule be arranged in a straight line part with
Bending part setting.The bending part of plural micro-nano structure can be arc, s shape, fold-line-shaped, wave linear shape or irregular curve shape
Middle a combination of one or more and bending part extend to the incidence surface edge of light conducting plate body, and plural micro-nano structure is formed
The guide lighting channel light that issues light source dispersed, formed uniformly in visible area that light conducting plate body enters and invisible range intersection
Light enters light conducting plate body.
Wherein in an embodiment, plural micro-nano structure is plural bulge-structure and/or sunk structure setting, and plural number is raised
Structure and/or sunk structure interval and/or continuous setting, wherein the section of plural bulge-structure and/or sunk structure be arc,
The combination of one or more of semicircle, triangle or polygon.
Wherein in an embodiment, light guide plate may also include the first adhesive layer, and the bending part of plural micro-nano structure can prolong
Light conducting plate body incidence surface edge is extended to, and light source is connected with the incidence surface side of light conducting plate body by the first adhesive layer,
So that the bending part of plural micro-nano structure can play the role of guide-lighting, in other embodiments, light source can enter with light conducting plate body
Directly by spelling by forming between smooth surface side.
Wherein in an embodiment, light guide plate includes bearing bed, and plural micro-nano structure is located at bearing bed far from light conducting plate body
Side, when bearing bed and plural micro-nano structure are structure as a whole when being arranged, bearing bed can for photocurings such as UV glue, OCA glue or
Heat-curable glue；When bearing bed and plural micro-nano structure are not integral structures, bearing bed can be some translucency such as PET, PMMA, PC
Preferable material.
Wherein in an embodiment, plural micro-nano structure is set to bearing bed side, the opposite carrying for being equipped with plural micro-nano structure
It is additionally provided with the second adhesive layer between the other side of layer and the light-emitting surface side or light-emitting surface opposite side of light conducting plate body, bearing bed is pasted
Together in light conducting plate body.
Wherein in an embodiment, light guide plate further includes reflecting layer, and reflecting layer is located at light conducting plate body and is equipped with plural micro-nano
The opposite side of structure is ipsilateral.When plural micro-nano structure is ipsilateral set on the light-emitting surface, light-emitting surface opposite side is equipped with anti-at this time
Layer is penetrated, light is propagated in light conducting plate body, is projected finally by plural micro-nano structure, be can effectively prevent light in leaded light
Plate ontology inner total reflection；When plural micro-nano structure is set to the light-emitting surface opposite side of light conducting plate body, at this time in plural micro-nano knot
Structure is equipped with reflecting layer far from the side of light conducting plate body, and such light can be uniform using plural micro-nano structure and reflecting layer
It is projected from the light-emitting surface of light conducting plate body.
It please join diagram below, citing describes a kind of light guide plate provided by the utility model.
Referring to Fig. 1, a kind of light guide plate 100 provided by the utility model comprising light conducting plate body 10, plural micro-nano knot
Structure 20 and point light source 30.Light conducting plate body 10 include an incidence surface and a light-emitting surface, incidence surface include visible area 12 and
Invisible range 11, invisible range 11 be it is arranged symmetrically, the incidence surface of light conducting plate body 10 is set to invisible range 11 far from visible area
12 sides.Point light source 30 is located at the incidence surface side of light conducting plate body 10.Plural micro-nano structure 20 is an entire cylindrical mirror setting,
Plural micro-nano structure 20 is located at the light-emitting surface side of light conducting plate body 10, and plural micro-nano structure 20 includes straight line portion 201 and bending
Part 202, bending part 202 are located in the invisible range 11 of point light source 30.When two incidence surfaces are arranged in light guide plate 100
When, the bending part 202 of plural micro-nano structure 20 is set in symmetrically arranged invisible range 11；Enter when light guide plate 100 is arranged one
When smooth surface, the straight line portion 201 of plural micro-nano structure 20 is set in the invisible range 11 far from incidence surface, straight line portion is equidistantly arranged
Column.Bending part 202 is s shape and its incidence surface edge for extending to light conducting plate body 10 in figure, so that light conducting plate body 10
The light of the point light source 30 of incidence surface side is dispersed, and is converted into uniform light incident with 11 intersection of invisible range in visible area 12 and is kept away
There is light and dark phenomenon in the visible area 12 and 11 intersection of invisible range for exempting from light conducting plate body 10.
Referring to Fig. 2, Fig. 2 is A-A ' cross section structure schematic diagram in Fig. 1 light guide plate 100, plural micro-nano structure 20, which is located at, is led
The light-emitting surface side of tabula rasa ontology 10, and plural micro-nano structure 20 is plural bulge-structure setting, wherein plural bulge-structure is continuous
Setting；In other modes, plural micro-nano structure 20 can also be plural sunk structure setting or part bulge-structure portion concave
Structure setting, and plural bulge-structure and/or sunk structure interval and/or continuous setting.The section of plural micro-nano structure 20 is
Arc can also be one of arc, semicircle, triangle or polygon in other modes.
Referring to Fig. 3, the bending part 203 of plural micro-nano structure 20 is arc and assembles towards point light source 30 in figure, at it
In his mode, bending part 203 can also be wave linear shape or irregular curve shape.
Referring to Fig. 4, the bending part 204 of plural micro-nano structure 20 is tri linear shape and assembles to towards point light source 30, point
The first adhesive layer 40 is equipped between light source 30 and incidence surface, so that the light of point light source 30 is existed by the conduction of bending part 204
It is dispersed into uniform light incident close to the visible area 12 of point light source 30 and the junction of invisible range 11, avoids visible area 12 and not
There are light and dark shadows for the junction of visible area 11.In other modes, point light source 30 can enter with light conducting plate body 10
It is directly leaned on by spelling between smooth surface side.
Referring to Fig. 5, plural micro-nano structure 21 can also be arranged for small short-term；Equally, the plural micro-nano knot of small short-term setting
Structure 21 includes straight line portion 211 and bending part 212, and bending part 212 is concentrated to point light source 30 and bending part 211 is located at not
Visible area 11；As shown in fig. 6, micro-nano structure 22 can also be arranged for lenticule, the plural micro-nano structure 22 of lenticule setting includes
Straight line portion 221 and bending part 222, equally, bending part 222 concentrate to point light source 30 and extend to incidence surface edge.Benefit
Conduction light can equally be played the role of with the arrangement of small short-term or lenticule, eliminate visible area 12 and invisible range 11
Light and dark phenomenon.
Referring to Fig. 7, Fig. 7 is another cross section structure schematic diagram, light guide plate 100 further includes bearing bed 50, plural micro-nano
Structure 20 is that continuous bulge-structure is arranged and it is located at side of the bearing bed 50 far from light conducting plate body 10, bearing bed 50 and
Plural micro-nano structure 20 is structure as a whole setting.Light guide plate 100 further includes reflecting layer 60, and reflecting layer 60 is located at light conducting plate body 10
Light-emitting surface opposite side, so that projected when light is propagated in light conducting plate body 10 by plural micro-nano structure 20, can
Effectively to prevent light in 10 inner total reflection of light conducting plate body.
Preferably, when bearing bed 50 and plural micro-nano structure 20 are structure as a whole when being arranged, bearing bed 50 can for UV glue,
The optic-solidified adhesives such as OCA glue or heat-curable glue；When bearing bed 50 and plural micro-nano structure 20 are not integral structures, bearing bed 50 can
For the preferable material of some translucency such as PET, PMMA, PC.
Referring to Fig. 8, light guide plate 100 includes the second adhesive layer 70, the second adhesive layer 70 is located at bearing bed 50 far from plural number
Bearing bed 50 is conformed to the light-emitting surface side of light conducting plate body 10 by the side of micro-nano structure 20.Reflecting layer 60 is located at light guide plate sheet
The opposite side of the light-emitting surface of body 10 prevents light in 10 inner total reflection of light conducting plate body.
Referring to Fig. 9, plural micro-nano structure 20 is located at the opposite side of the light-emitting surface of light conducting plate body 10, plural micro-nano structure
20 are arranged for bulge-structure, and the side of bearing bed 50 is equipped with spaced bulge-structure；It is opposite to be equipped with plural micro-nano structure 20
The other side of bearing bed 50 be bonded with the opposite side of the light-emitting surface of light conducting plate body 10 by third adhesive layer 80, reflecting layer
60 are located at plural side of the micro-nano structure 20 far from light conducting plate body 10, such light can using plural micro-nano structure 20 and
Reflecting layer 60 and uniformly from the light-emitting surface of light conducting plate body 10 project, so that the image of display is more clear.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, above in conjunction with attached drawing to this
The specific embodiment of utility model is described in detail.Elaborate many details in order to abundant in the above description
Understand the utility model.But the utility model can be implemented with being much different from other way described above, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by public above
The limitation for the specific embodiment opened.Also, each technical characteristic of embodiment described above can be combined arbitrarily, to make to retouch
It states succinctly, combination not all possible to each technical characteristic in above-described embodiment is all described, as long as however, these skills
Contradiction is not present in the combination of art feature, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (12)
1. a kind of light guide plate, characterized in that it comprises:
Light conducting plate body, the light conducting plate body include a light-emitting surface and at least one incidence surface；
Light source, the light source are located at the incidence surface side of the light conducting plate body；
Plural micro-nano structure, the plural number micro-nano structure are located at the light-emitting surface side or light-emitting surface opposite side of the light conducting plate body,
Wherein the plural micro-nano structure includes straight line portion and bending part, and the bending part extends to the light conducting plate body
Incidence surface edge, the bending part are assembled towards at the light source.
2. a kind of light guide plate according to claim 1, which is characterized in that the bending part of the plural number micro-nano structure is arc
One or more kinds of combinations in shape, s shape, fold-line-shaped, wave linear shape or irregular curve shape.
3. a kind of light guide plate according to claim 1, which is characterized in that the light-emitting surface includes visible area and not visible
Area, the incidence surface are set to the invisible range far from the visible area side.
4. a kind of light guide plate according to claim 3, which is characterized in that the invisible range is symmetrical arranged, and is at least existed
One bending part is located at the invisible range, and the straight line portion is equally distributed in the visible area.
5. a kind of light guide plate according to claim 1, which is characterized in that the plural number micro-nano structure is plural bulge-structure
And/or sunk structure setting.
6. a kind of light guide plate according to claim 5, which is characterized in that the plural number bulge-structure and/or sunk structure
Interval and/or continuous setting.
7. a kind of light guide plate according to claim 5, which is characterized in that the plural number bulge-structure and/or sunk structure
Section be one or more of arc, semicircle, triangle or polygon combination.
8. a kind of light guide plate according to claim 1, which is characterized in that the single micro-nano structure is that a cylindrical mirror is set
It sets, small short-term or lenticule are arranged in a straight line and are partially arranged with bending part.
9. a kind of light guide plate according to claim 1, which is characterized in that the light guide plate further includes the first adhesive layer, institute
The first adhesive layer is stated between the light source and light conducting plate body incidence surface side.
10. a kind of light guide plate according to any one of claim 1 to 9, which is characterized in that the light guide plate includes carrying
Layer, the plural number micro-nano structure are located at side of the bearing bed far from the light conducting plate body.
11. a kind of light guide plate according to claim 10, which is characterized in that the light guide plate further includes the second adhesive layer,
Second adhesive layer is additionally provided between the bearing bed and the light conducting plate body.
12. a kind of light guide plate according to claim 11, which is characterized in that the light guide plate further includes reflecting layer, described
Reflecting layer is located at the ipsilateral or opposite side that the light conducting plate body is equipped with the plural micro-nano structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447727.2U CN209606654U (en) | 2019-04-03 | 2019-04-03 | A kind of light guide plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447727.2U CN209606654U (en) | 2019-04-03 | 2019-04-03 | A kind of light guide plate |
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| CN209606654U true CN209606654U (en) | 2019-11-08 |
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| CN201920447727.2U Active CN209606654U (en) | 2019-04-03 | 2019-04-03 | A kind of light guide plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781669A (en) * | 2019-04-03 | 2020-10-16 | 昇印光电（昆山）股份有限公司 | Light guide plate |
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2019
- 2019-04-03 CN CN201920447727.2U patent/CN209606654U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781669A (en) * | 2019-04-03 | 2020-10-16 | 昇印光电（昆山）股份有限公司 | Light guide plate |
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