CN207424291U - Backlight and display device - Google Patents
Backlight and display device Download PDFInfo
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- CN207424291U CN207424291U CN201721275500.1U CN201721275500U CN207424291U CN 207424291 U CN207424291 U CN 207424291U CN 201721275500 U CN201721275500 U CN 201721275500U CN 207424291 U CN207424291 U CN 207424291U
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Abstract
The utility model is related to field of display devices, specifically, it is to be related to a kind of backlight and display device, including light guide plate, light-emitting device, quantum dot film and optical film, wherein, light guide plate has an incidence surface and a light-emitting surface, light-emitting device is located at the incidence surface one side of light guide plate, and light-emitting device includes multiple lamp beads for being used to send blue light, the edge coating of optical film has yellow fluorescence coating, and quantum dot film is arranged on the light-emitting surface one side of the light guide plate and between the light guide plate and the optical film；Pass through above-mentioned technical proposal, after the blue light of quantum dot film indigo plant side diverging injects the optics film edge coated with yellow fluorescence coating, positive white light will be gone out with yellow fluorescence coating hybrid concurrency, with the blue side that this " elimination " quantum dot film edge region generates, so as to improve the display effect of quantum dot film product display screen and the visual experience of user.
Description
Technical field
The utility model is related to field of display devices, are to be related to a kind of backlight and display device specifically.
Background technology
Technology of quantum dots belongs to innovation semiconductor nanocrystal technology, and quantum optics point film is at 2~10 nanometers by diameter
Between crystal grain form, when it is nanocrystalline photoelectricity is subject to stimulate when can different colours be inspired according to the of different sizes of crystal grain diameter
Monochromatic light, by accurately conveying light, to generate more blue blue, greener green and redder red, by outstanding
Backward backlight technology is overturned in pure color output comprehensively.
Existing using in the product of blue light lamp bead excitation quantum point film, due to fringe region it is cut after can generate mistake
Side is imitated, causes the reduction of quantum dot, therefore the red, green, blue light of fringe region can not be mixed preferably, and then in quantum dot film
Fringe region can generate blue side, " blue side problem " appearance so that such product whole display effect it is uneven, very big journey
The display effect of product and the visual experience of user are affected on degree.
Utility model content
The purpose of this utility model is to provide a kind of backlight and display devices, it is intended to solve quantum dot film product because
" blue side problem " and caused by the non-uniform technical problem of display screen display effect.
The utility model proposes a kind of backlight, including：
Light guide plate has an incidence surface and a light-emitting surface；
Light-emitting device, positioned at the incidence surface one side of the light guide plate, the light-emitting device is used to send including multiple
The lamp bead of blue light；
Optical film, edge coating have yellow fluorescence coating；And
Quantum dot film is arranged on the light-emitting surface one side of the light guide plate and positioned at the light guide plate and the optical film
Between.
Further, on opposite sides edge of the yellow fluorescence coating coated on the optical film.
Further, the optical film has towards the first film surface of the quantum dot film and opposite with first film surface
The second film surface, the yellow fluorescence coating coated on first film surface opposite sides edge on.
Further, the coated weight of the yellow fluorescence coating of the optics film edge from the periphery of the optical film to
Successively decrease in center.
Further, the yellow fluorescence coating is mixed by fluorescent powder and Yellow ink.
Further, the edge of the optical film is formed with positioning tab, offered on the positioning tab for institute
State the location hole that quantum dot film is fixedly connected.
Further, the opposite sides of the optical film is formed with the positioning tab.
Further, the thickness of the positioning tab is identical with the thickness of the optical film.
Further, the location hole is set through the positioning tab.
The utility model proposes a kind of display device, including above-mentioned backlight.
Be compared with the prior art, the utility model proposes a kind of backlight, including light guide plate, light-emitting device, quantum dot
Film and optical film, wherein, light guide plate has an incidence surface and a light-emitting surface, and light-emitting device is located at the incidence surface one of light guide plate
Side, and light-emitting device includes multiple lamp beads for being used to send blue light, the edge coating of optical film has yellow fluorescence coating, quantum dot
Film is arranged on the light-emitting surface one side of light guide plate and between light guide plate and optical film, therefore, the blue light warp that light-emitting device is sent
Light guide plate and quantum dot film can enter optical film after projecting, however, due to quantum dot film edge region red, green, blue light without
Method preferably mixes, and can generate blue side in the fringe region of quantum dot film, be applied by the edge coating yellow fluorescence in optical film
Material, after the blue light that quantum dot film indigo plant side dissipates injects the optics film edge coated with yellow fluorescence coating, which will be with yellow
Fluorescent paint hybrid concurrency goes out positive white light, with the blue side that this " elimination " quantum dot film edge region generates, improves quantum
The display effect of point film product display screen and the visual experience of user.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing is briefly described needed in description, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram one for the backlight that the utility model embodiment provides；
Fig. 2 is the structure diagram two for the backlight that the utility model embodiment provides.
Wherein, each reference numeral in figure：
1：Light guide plate 2：Light-emitting device
3：Quantum dot film 4：Optical film
11：Incidence surface 12：Light-emitting surface
21：Lamp bead 100：Yellow fluorescence coating
41：First film surface 42：Second film surface
43：Positioning tab 430：Location hole
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that the utility model
Limitation.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.
In the utility model, unless otherwise clearly defined and limited, the arts such as term " connected ", " connection ", " fixation "
Language should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands concrete meaning of the above-mentioned term in the utility model.
As depicted in figs. 1 and 2, it is a preferred embodiment provided by the utility model.
A kind of backlight provided in this embodiment, including light guide plate 1, light-emitting device 2, quantum dot film 3 and optical film 4,
Wherein, light guide plate 1 has an incidence surface 11 and a light-emitting surface 12, and light-emitting device 2 is located at 11 one side of incidence surface of light guide plate 1, and
Light-emitting device 2 includes multiple lamp beads 21 for being used to send blue light, and the edge coating of optical film 4 has yellow fluorescence coating 100, quantum
Point film 3 is arranged on 12 one side of light-emitting surface of light guide plate 1 and between light guide plate 1 and optical film 4, and therefore, light-emitting device 2 is sent
Blue light can enter optical film 4 after light guide plate 1 and quantum dot film 3 project, however, due to 3 fringe region of quantum dot film it is red,
Green, blue light line can not be mixed preferably, blue side can be generated in the fringe region of quantum dot film 3, by being applied at the edge of optical film 4
Yellow fluorescence coating 100 is covered, when the blue blue light in diverging of quantum dot film 3 injects the optical film 4 coated with yellow fluorescence coating 100
After edge, which will go out positive white light with 100 hybrid concurrency of yellow fluorescence coating, with this " elimination " 3 marginal zone of quantum dot film
The blue side that domain generates, improves the display effect of quantum dot film product display screen and the visual experience of user.
In one embodiment of the utility model, yellow fluorescence coating 100 is coated on the opposite sides edge of optical film 4
On；For convenience of description, by taking Fig. 1 as an example, although quantum dot film 3 not shown in Fig. 1, is envisaged that according to structure shown in Fig. 2
Going out quantum dot film 3 should be completely covered by optical film 4 shown in FIG. 1, if the left and right sides edge of quantum dot film 3 (does not show in figure
Go out) there is blue side, accordingly, optical film 4 can shed thoroughly above-mentioned blue side left and right sides edge be both needed to it is glimmering coated with yellow
Optical coating 100, therefore " the opposite sides edge " mentioned in the present embodiment is interpreted as optical film 4 can shed thoroughly the opposite of blue side
Both sides of the edge；By coating yellow fluorescence coating 100 on the opposite sides edge of optical film 4, for " elimination " quantum dot film 3
On blue side it is more targeted, meanwhile, on optical film coat yellow fluorescence coating operations it is simple, cost is relatively low, such light
Industrialized production can be realized by learning film.
In one embodiment of the utility model, Fig. 2 is referred to, optical film 4 has the first film towards quantum dot film 3
Face 41 and second film surface 42 opposite with the first film surface 41, yellow fluorescence coating 100 are coated on the opposite sides of the first film surface 41
On edge, yellow is coated on the first film surface 41 closer to quantum dot film 3 compared to the second film surface 42 due to the first film surface 41
Fluorescent paint 100 being capable of the rapider and more directly blue light with the diverging of quantum dot film 3, and then the effect on " elimination " blue side
More preferably；In addition, in practice, the first film surface 41 of optical film 4 is compared with the flatness higher of the second film surface 42, therefore it is more preferable to coat effect
And it is easy to operation, it certainly, is updated with the development of optical film, the structure of optical film can be further accurate, the first film surface 41 and second
The difference of film surface 42 can also reduce therewith, and therefore, it is necessary to explanation, the technical program is intended only as one preferable skill of the present embodiment
Art scheme, all similar technical solutions belong to the scope of the present embodiment protection.
In one embodiment of the utility model, the coated weight of the yellow fluorescence coating 100 at 4 edge of optical film is from optics
The periphery of film 4 is successively decreased to center, for convenience of description, refers to Fig. 1, and the opposite sides edge of optical film 4 is optics in figure
The left and right sides of film 4, first, by taking left side as an example, coated weight of the yellow fluorescence coating 100 on the left of optical film 4 is from periphery in
Centre is successively decreased, and means (not shown) of successively decreasing from left to right, due to the left side of quantum dot film 3 blue side by it is left-to-right gradually become shallower as to
White (not shown) is rendered as, i.e., the blue side that 3 fringe region of quantum dot film generates has inhomogeneities, therefore, in optics
During 4 left side coating yellow fluorescence coating 100 of film, it should coat from left to right, and coated weight gradually decreases, in this way, 4 left side of optical film
3 left side of yellow fluorescence coating 100 and quantum dot film blue light (not shown) mix after, enable to the fringe region to be in
Reveal more uniform white light；Similarly, coated weight of the yellow fluorescence coating 100 on 4 right side of optical film is passed from periphery to center
Subtract, mean (not shown) of successively decreasing from right to left, since the blue side on 3 right side of quantum dot film is gradually become shallower as to a left side to presentation by the right side
For white (not shown), i.e., the blue side that 3 fringe region of quantum dot film generates has inhomogeneities, therefore, right in optical film 4
When side coats yellow fluorescence coating 100, it should coat from right to left, and coated weight gradually decreases, in this way, the Huang on 4 right side of optical film
After color fluorescent paint 100 is mixed with the blue light (not shown) on 3 right side of quantum dot film, it equally may be such that the fringe region is presented
Go out more uniform white light；Therefore, the opposite sides edge for the optical film 4 for " eliminating " Lan Bianhou can be made using above-mentioned preferred embodiment
Region has more uniform display effect, and then improves the backlight display performance of backlight, promotes the visual experience of user.
In one embodiment of the utility model, yellow fluorescence coating 100 is mixed by fluorescent powder and Yellow ink.
In one embodiment of the utility model, Fig. 1 is referred to, the edge of optical film 4 is formed with positioning tab 43, fixed
The location hole 430 being fixedly connected with quantum dot film 3 is offered on the lug 43 of position；For convenience of description, Fig. 2 is referred to, is measured
Son point film 3 is located at the lower section of optical film 4, and light guide plate 1 is located at the lower section of quantum dot film 3, wherein, quantum dot film 3 has and optics
The positioning through hole (not shown) that location hole 430 on 4 positioning tab 43 of film communicates has on light guide plate 1 and is used for and quantum
The locating slot (not shown) that point film 3 and optical film 4 connect, by a locking member (not shown) simultaneously through optical film
Leaded light can be realized in the location hole 430 of positioning tab 43, the positioning through hole on quantum dot film 3 and the locating slot on light guide plate 1 on 4
Plate 1, quantum dot film 3 are fixedly connected with optical film 4, specific locking member, location hole, the form of positioning through hole and locating slot,
It does not limit uniquely herein.
In one embodiment of the utility model, Fig. 1 is referred to, the opposite sides of optical film 4 is formed with positioning tab
43, it is intended to improve the stability of optic film structure.
Preferably, the thickness of positioning tab 43 is identical with the thickness of optical film 4.
Preferably, location hole 430 is set through positioning tab 43 so that locating effect is more preferably.
The utility model proposes a kind of display device, including above-mentioned backlight.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of backlight, which is characterized in that including：
Light guide plate has an incidence surface and a light-emitting surface；
Light-emitting device, positioned at the incidence surface one side of the light guide plate, the light-emitting device is used to send blue light including multiple
Lamp bead；
Optical film, edge coating have yellow fluorescence coating；And
Quantum dot film, be arranged on the light guide plate the light-emitting surface one side and positioned at the light guide plate and the optical film it
Between.
2. backlight according to claim 1, it is characterised in that：The yellow fluorescence coating is coated on the optical film
On opposite sides edge.
3. backlight according to claim 2, it is characterised in that：The optical film has the towards the quantum dot film
One film surface and second film surface opposite with first film surface, the yellow fluorescence coating are opposite coated on first film surface
On both sides of the edge.
4. backlight according to claim 3, it is characterised in that：The yellow fluorescence coating of the optics film edge
Coated weight successively decreases from the periphery of the optical film to center.
5. according to Claims 1 to 4 any one of them backlight, it is characterised in that：The yellow fluorescence coating is by fluorescent powder
It is mixed with Yellow ink.
6. backlight according to claim 1, it is characterised in that：The edge of the optical film is formed with positioning tab, institute
State the location hole offered on positioning tab for being fixedly connected with the quantum dot film.
7. backlight according to claim 6, it is characterised in that：The opposite sides of the optical film is formed with the positioning
Lug.
8. the backlight according to claim 6 or 7, it is characterised in that：The thickness of the positioning tab and the light
The thickness for learning film is identical.
9. backlight according to claim 8, it is characterised in that：The location hole is set through the positioning tab.
10. a kind of display device, it is characterised in that：Including such as claim 1~9 any one of them backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721275500.1U CN207424291U (en) | 2017-09-29 | 2017-09-29 | Backlight and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721275500.1U CN207424291U (en) | 2017-09-29 | 2017-09-29 | Backlight and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424291U true CN207424291U (en) | 2018-05-29 |
Family
ID=62314391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721275500.1U Active CN207424291U (en) | 2017-09-29 | 2017-09-29 | Backlight and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207424291U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348152A (en) * | 2018-11-16 | 2019-02-15 | 青岛恒泰机械配件有限公司 | A kind of 3D curved surface LCD TV |
| WO2021017587A1 (en) * | 2019-07-29 | 2021-02-04 | 瑞仪光电(南京)有限公司 | Light adjustment film, backlight module, and display apparatus |
| US10989389B2 (en) | 2019-07-29 | 2021-04-27 | Radiant Opto-Electronics Corporation | Light-adjusting film, backlight module, and display device |
| US11609367B2 (en) | 2020-05-19 | 2023-03-21 | Coretronic Corporation | Light source module and display device |
-
2017
- 2017-09-29 CN CN201721275500.1U patent/CN207424291U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348152A (en) * | 2018-11-16 | 2019-02-15 | 青岛恒泰机械配件有限公司 | A kind of 3D curved surface LCD TV |
| WO2021017587A1 (en) * | 2019-07-29 | 2021-02-04 | 瑞仪光电(南京)有限公司 | Light adjustment film, backlight module, and display apparatus |
| US10989389B2 (en) | 2019-07-29 | 2021-04-27 | Radiant Opto-Electronics Corporation | Light-adjusting film, backlight module, and display device |
| US11609367B2 (en) | 2020-05-19 | 2023-03-21 | Coretronic Corporation | Light source module and display device |
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