CN104456312B - A kind of backlight, display floater and display device - Google Patents
A kind of backlight, display floater and display device Download PDFInfo
- Publication number
- CN104456312B CN104456312B CN201410721330.XA CN201410721330A CN104456312B CN 104456312 B CN104456312 B CN 104456312B CN 201410721330 A CN201410721330 A CN 201410721330A CN 104456312 B CN104456312 B CN 104456312B
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- CN
- China
- Prior art keywords
- backlight
- fixed structure
- diffusion layer
- particle
- exiting surface
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/12—Combinations of only three kinds of elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
Abstract
The present invention provides a kind of backlight, display floater and display device.This backlight includes light guide plate and is arranged on the film material group above light guide plate, the light that backlight sends penetrates after sequentially passing through light guide plate and film material group, the local edge of film material group stretches out and is formed with fixed structure, film material group includes prismatic lens, being provided with diffusion layer on the exiting surface of the fixed structure of prismatic lens, diffusion layer is for making the equalizing light rays of injection on the exiting surface of fixed structure.This backlight is by arranging diffusion layer on the exiting surface of fixed structure, the backlight equalizing light rays of outgoing on the exiting surface of fixed structure can be made, thus eliminate the shadow occurring in viewing area corresponding to fixed structure (backlight area that other packaging structures outside the most not by glue frame and glue frame block) edge, and then improve the backlight effect of backlight.
Description
Technical field
The present invention relates to technical field of liquid crystal display, in particular it relates to a kind of backlight,
Display floater and display device.
Background technology
Liquid crystal display (LCD:Liquid Crystal Display) because its volume is little,
The feature such as low in energy consumption, radiationless has become the main product in current flat faced display.
Backlight is requisite assembly in liquid crystal display.Backlight is generally by carrying on the back
Plate, light source, light guide plate, film material group and glue frame etc. form.Wherein, film material group includes putting
Diffusion sheet above light guide plate and prismatic lens.
In order to the film material group in backlight is well fixed, generally in film material group
Edge is formed with lug, and lug is same when cutting the film material sheet forming film material group
Time formed.As it is shown in figure 1, lug 5 is rectangular patch, lug 5 can be arranged on
Below glue frame or be arranged on glue frame formed depressed part in, then by adhesive tape will
Glue frame and lug 5 are fixed；As in figure 2 it is shown, lug 5 can also be rectangular ring,
Being provided with bulge-structure on glue frame, bulge-structure can be embedded in the lug 5 of rectangular ring
In opening, then by adhesive tape, glue frame and lug 5 are fixed.
Owing to the lug at prismatic lens edge has the prism structure identical with prismatic lens, such as figure
Shown in 3, in lug 5 position of prismatic lens 11, the lug 5 of prism structure can be at it
Light emission side produces convergence effect to light, and the light after converging just can only enter human eye
Visual angle ± 45 ° of scopes (i.e. be perpendicular to what the angular separation of display floater was ± 45 °
Scope) in, when human eye exceed positive visual angle ± 45 ° of scopes observe time, compare film material group
Other be formed without the edge of lug 5, the viewing area 4 of lug 5 correspondence is (the most not
The backlight area that other packaging structures outside by glue frame and glue frame block) edge can present
Shadow 6.Different, at the visible area of lug 5 correspondence according to lug 5 planform
The shape the most different (as depicted in figs. 1 and 2) of the shadow 6 that the edge in territory 4 produces.
At present, the liquid crystal display of narrow frame becomes more and more popular, the liquid crystal display of narrow frame
Device is limited due to its marginal dimension, structurally cannot block the visible area of lug 5 correspondence
The shadow 6 that edge, territory 4 presents, therefore, slightly larger visual angle viewing lug 5 correspondence can
During the edge of viewed area 4, can clearly see shadow 6, viewing effect is caused very
Deleterious effect.
Summary of the invention
The present invention is directed to above-mentioned technical problem present in prior art, it is provided that a kind of backlight
Source, display floater and display device.This backlight can make to go out on the exiting surface of fixed structure
The backlight equalizing light rays penetrated, thus eliminate and occur in the visible area that fixed structure is corresponding
Territory (backlight area that other packaging structures outside the most not by glue frame and glue frame block) edge
Shadow, and then improve the backlight effect of backlight.
The present invention provides a kind of backlight, including light guide plate be arranged on described light guide plate
The film material group of side, the light that described backlight sends sequentially passes through described light guide plate and described
Penetrating after film material group, the local edge of described film material group stretches out and is formed with fixed knot
Structure, described film material group includes prismatic lens, in the going out of described fixed structure of described prismatic lens
Being provided with diffusion layer on bright finish, described diffusion layer is for making the exiting surface of described fixed structure
The equalizing light rays of upper injection.
Preferably, described diffusion layer is completely covered the exiting surface of described fixed structure.
Preferably, the exiting surface of described fixed structure is rough male and fomale(M&F), described
The part of the depression of described male and fomale(M&F) can be filled with by diffusion layer, so that described fixed knot
The exiting surface of structure forms plane.
Preferably, described diffusion layer uses polyethylene terephthalate particle, poly-carbonic acid
In ester particle, polymethyl methacrylate particle, polystyrene particle and polyethylene particles
Any one or a few mixed materials.
Preferably, described polyethylene terephthalate particle, described Merlon particle,
Described polymethyl methacrylate particle, described polystyrene particle and described polyethylene grain
The particle diameter of son is all below 10 μm.
Preferably, described diffusion layer uses quanta point material.
Preferably, the particle size range of described quantum dot is 1-10nm.
Preferably, described diffusion layer uses the method for coating to be formed at described fixed structure
On exiting surface.
Preferably, described fixed structure be shaped as rectangle, rectangular ring, semicircle,
Half elliptic, triangle or trapezoidal.
The present invention also provides for a kind of display floater, including above-mentioned backlight.
Present invention additionally comprises a kind of display device, including above-mentioned display floater.
Beneficial effects of the present invention: backlight provided by the present invention, by fixed knot
On the exiting surface of structure, diffusion layer is set, the backlight of outgoing on the exiting surface of fixed structure can be made
Equalizing light rays, thus eliminate and occur in viewing area corresponding to fixed structure (the most not
The backlight area that other packaging structures outside by glue frame and glue frame block) shadow at edge,
And then improve the backlight effect of backlight.
Display floater provided by the present invention, by using above-mentioned backlight, eliminates out
The shadow at the edge, viewing area of the corresponding fixed structure of display floater now, thus promote
The display effect of display floater.Display device provided by the present invention, on using
State display floater, improve the display effect of this display device.
Accompanying drawing explanation
Fig. 1 is the lug of a kind of shape in prior art and at the edge of viewing area
The schematic diagram of the shadow formed；
Fig. 2 is the lug of another shape in prior art and on the limit of viewing area
The schematic diagram of the shadow that edge is formed；
Fig. 3 is that in prior art, the lug at prismatic lens edge carries out transmission to light and cuts open
Face schematic diagram；
Fig. 4 be the embodiment of the present invention 1 backlight in the putting of fixed structure on prismatic lens
Big structure sectional view；
Fig. 5 is that the backlight using the fixed structure in Fig. 4 printing opacity in viewing area shows
It is intended to；
Fig. 6 is the generalized section that the fixed structure in Fig. 4 carries out transmission to light；
Fig. 7 is the structure of fixed structure in the embodiment of the present invention 2 and carries out light
The generalized section penetrated.
Description of reference numerals therein:
1. film material group；11. prismatic lenses；2. fixed structure；3. diffusion layer；4. visible area
Territory；5. lug；6. shadow.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below
In conjunction with the drawings and specific embodiments to a kind of backlight, display surface provided by the present invention
Plate and display device are described in further detail.
Embodiment 1:
The present embodiment provides a kind of backlight, as shown in Figure 4 and Figure 5, including light guide plate
With the film material group 1 being arranged on above light guide plate, the light that backlight sends sequentially passes through leads
Penetrating after tabula rasa and film material group 1, the local edge of film material group 1 stretches out and is formed admittedly
Fixed structure 2, film material group 1 includes prismatic lens 11, at the fixed structure 2 of prismatic lens 11
Exiting surface on be provided with diffusion layer 3, diffusion layer 3 goes out light for make fixed structure 2
The equalizing light rays of injection on face.
Wherein, fixed structure 2 is used for making film material group 1 fixing in the backlight.Fixed knot
The setting of diffusion layer 3 on the exiting surface of structure 2, can make to go out on the exiting surface of fixed structure 2
The backlight equalizing light rays penetrated, thus eliminate and occur in the visual of fixed structure 2 correspondence
Region 4 (backlight area that other packaging structures outside the most not by glue frame and glue frame block)
The shadow at edge, and then improve the backlight effect of backlight.
In the present embodiment, diffusion layer 3 is completely covered the exiting surface of fixed structure 2.So
Arranging, the backlight light that can make outgoing on the whole exiting surface of fixed structure 2 is the most equal
Homogenize, so that the shadow at the edge, viewing area 4 of corresponding fixed structure 2 no longer occurs.
In the present embodiment, as shown in Figure 6, the exiting surface of fixed structure 2 is uneven
Male and fomale(M&F), the part of the depression of male and fomale(M&F) can be filled with by diffusion layer 3, so that solid
The exiting surface of fixed structure 2 forms plane.Being arranged such, diffusion layer 3 can make fixed structure
The backlight equalizing light rays of outgoing on the exiting surface of 2, so that human eye is exceeding positive visual angle
± 45 ° of scopes (i.e. be perpendicular to what the angular separation of backlight exiting surface was ± 45 °
Scope) in when observing 4 edge, viewing area of fixed structure 2 correspondence, not can be appreciated that dark
Shadow.
Generally, in order to make to become more uniform from the light of film material group 1 outgoing, prismatic lens
The exiting surface of 11 is usually arranged as rough male and fomale(M&F), due to fixed structure 2 with
Prismatic lens 11 is formed in one, the shape while that fixed structure 2 being when prismatic lens 11 cuts
Become, so the fixed structure 2 on prismatic lens 11 has and the exiting surface of prismatic lens 11
Mutually isostructural exiting surface.The viewing area 4 of backlight is big visual angle viewing areas,
Viewing area 4 does not haves shadow, and fixed structure 2 is beyond viewing area 4, i.e.
Fixed structure 2 by glue frame and glue frame outside other packaging structures such as adhesive tape etc. block, because of
This, exceed positive visual angle ± 45 ° of scopes are (i.e. with the side being perpendicular to backlight exiting surface
Scope to angle is ± 45 °) in observe fixed structure 2 correspondence limit, viewing area 4
During edge, just can be appreciated that shadow.
In the present embodiment, diffusion layer 3 uses polyethylene terephthalate (PET) grain
Son, Merlon (PC) particle, polymethyl methacrylate (PMMA) particle, poly-
Any one or a few mixed in stupid ethylene (PS) particle and polyethylene (MS) particle
Close material.PET particle, PC particle, PMMA particle, PS particle and the grain of MS particle
Footpath is all below 10 μm.The diffusion layer 3 of the above-mentioned particle material in this particle size range is right
Light has good diffusion, and the irradiation that can make light one way or another is more equal
Even, thus eliminate the shadow at the edge, viewing area 4 occurring in fixed structure 2 correspondence,
And then improve the backlight effect of backlight.
In the present embodiment, diffusion layer 3 uses the method for coating to be formed at fixed structure 2
Exiting surface on.The preparation of diffusion layer 3 not only simplicity but also quick.
In the present embodiment, fixed structure 2 be shaped as rectangle.
It should be noted that the shape of fixed structure 2 can also be rectangular ring, semicircle
Shape, half elliptic, triangle or trapezoidal etc..The difformity of corresponding fixed structure 2,
Before the exiting surface of fixed structure 2 is not provided with diffusion layer 3, fixed structure 2 correspondence
The edge of viewing area 4 can present various difform shadow；At fixed structure 2
Exiting surface diffusion layer 3 is set after, it is possible to eliminate occur in fixed structure 2 correspondence
The various difform shadow at edge, viewing area 4, promotes the backlight effect of backlight
Really.
Embodiment 2:
The present embodiment provides a kind of backlight, as different from Example 1, such as Fig. 7
Shown in, diffusion layer 3 uses quanta point material.The particle size range of quantum dot is 1-10nm.
Blueness in the white light that quantum dot in this particle size range can be launched by backlight
Part excites, and this one side can make the light of the exiting surface outgoing of fixed structure 2 pass through
After diffusion layer 3, brightness improves, on the other hand, and the blue portion excitation quantum in white light
After some material, owing to quanta point material is Nano grade, so can make through diffusion layer 3
Light generation diffraction so that the direction of illumination through the light of diffusion layer 3 divides at random
Cloth, and then improve its of the edge, viewing area of fixed structure 2 correspondence and viewing area
Luminance difference between his edge, eliminates the viewing area occurring in fixed structure 2 correspondence
The shadow at edge.
The beneficial effect of embodiment 1-2: the backlight provided in embodiment 1-2 is logical
Cross and diffusion layer is set on the exiting surface of fixed structure, can make on the exiting surface of fixed structure
The backlight equalizing light rays of outgoing, thus eliminate and occur in corresponding visual of fixed structure
Region (backlight area that other packaging structures outside the most not by glue frame and glue frame block) limit
The shadow of edge, and then improve the backlight effect of backlight.
Embodiment 3:
The present embodiment provides a kind of display floater, including embodiment 1-2 in any one
Backlight.
By using embodiment 1-2 backlight in any one, eliminate occur in aobvious
Show the shadow at the edge, viewing area of the corresponding fixed structure of panel, thus improve display
The display effect of panel.
Embodiment 4:
The present embodiment provides a kind of display device, including the display floater in embodiment 3.
By using the display floater in embodiment 3, improve the display of this display device
Effect.
Display device provided by the present invention can be, liquid crystal panel, LCD TV, aobvious
Show any product with display function or the parts such as device, mobile phone, navigator.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present
And the illustrative embodiments used, but the invention is not limited in this.For ability
For those of ordinary skill in territory, in the situation without departing from spirit and substance of the present invention
Under, various modification and improvement can be made, these modification and improvement are also considered as the present invention's
Protection domain.
Claims (11)
1. a backlight, including light guide plate and be arranged on the film above described light guide plate
Material group, the light that described backlight sends sequentially passes through described light guide plate and described film material group
Rear injection, the local edge of described film material group stretches out and is formed with fixed structure, described
Film material group includes prismatic lens, it is characterised in that at the described fixed structure of described prismatic lens
Exiting surface on be provided with diffusion layer, described diffusion layer is for making going out of described fixed structure
The equalizing light rays of injection on bright finish.
Backlight the most according to claim 1, it is characterised in that described diffusion
Layer is completely covered the exiting surface of described fixed structure.
Backlight the most according to claim 2, it is characterised in that described fixing
The exiting surface of structure is rough male and fomale(M&F), and described diffusion layer can be to described male and fomale(M&F)
The part of depression be filled with, so that the exiting surface of described fixed structure forms plane.
4. according to the backlight described in claim 1-3 any one, it is characterised in that
Described diffusion layer uses polyethylene terephthalate particle, Merlon particle, poly-first
In base acrylic acid methyl ester. particle, polystyrene particle and polyethylene particles any one or
Several mixed materials.
Backlight the most according to claim 4, it is characterised in that described poly-right
Polyethylene terephthalate particle, described Merlon particle, described poly-methyl methacrylate
The particle diameter of ester particle, described polystyrene particle and described polyethylene particles is all in 10 μm
Below.
6. according to the backlight described in claim 1-3 any one, it is characterised in that
Described diffusion layer uses quanta point material.
Backlight the most according to claim 6, it is characterised in that described quantum
The particle size range of point is 1-10nm.
Backlight the most according to claim 1, it is characterised in that described diffusion
Layer uses the method for coating to be formed on the exiting surface of described fixed structure.
Backlight the most according to claim 1, it is characterised in that described fixing
Structure be shaped as rectangle, semicircle, half elliptic, triangle or trapezoidal.
10. a display floater, it is characterised in that include that claim 1-9 is any
One described backlight.
11. 1 kinds of display devices, it is characterised in that include described in claim 10
Display floater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410721330.XA CN104456312B (en) | 2014-12-02 | 2014-12-02 | A kind of backlight, display floater and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410721330.XA CN104456312B (en) | 2014-12-02 | 2014-12-02 | A kind of backlight, display floater and display device |
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| Publication Number | Publication Date |
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| CN104456312A CN104456312A (en) | 2015-03-25 |
| CN104456312B true CN104456312B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410721330.XA Active CN104456312B (en) | 2014-12-02 | 2014-12-02 | A kind of backlight, display floater and display device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842682A (en) * | 2017-03-03 | 2017-06-13 | 京东方科技集团股份有限公司 | Optical film material and preparation method thereof, display base plate, display device |
| CN108957606B (en) * | 2018-07-05 | 2021-03-30 | 深圳创维－Rgb电子有限公司 | Design method of composite diaphragm and composite diaphragm |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285961A (en) * | 2007-04-13 | 2008-10-15 | 株式会社常宝 | Multifunctional optical multilayer film using optical diffuser |
| CN101589332A (en) * | 2007-02-01 | 2009-11-25 | 昂诺里电子股份有限公司 | Diffuser-integrated prism sheet for backlight units and method of manufacturing the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3431415B2 (en) * | 1996-09-20 | 2003-07-28 | 恵和株式会社 | Light diffusion sheet |
| KR20110076320A (en) * | 2009-12-29 | 2011-07-06 | 웅진케미칼 주식회사 | Prism film having complex function and preparing thereof |
-
2014
- 2014-12-02 CN CN201410721330.XA patent/CN104456312B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589332A (en) * | 2007-02-01 | 2009-11-25 | 昂诺里电子股份有限公司 | Diffuser-integrated prism sheet for backlight units and method of manufacturing the same |
| CN101285961A (en) * | 2007-04-13 | 2008-10-15 | 株式会社常宝 | Multifunctional optical multilayer film using optical diffuser |
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| CN104456312A (en) | 2015-03-25 |
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