CN206479669U - A kind of film layer, light guide plate assembly, backlight module and display device - Google Patents
A kind of film layer, light guide plate assembly, backlight module and display device Download PDFInfo
- Publication number
- CN206479669U CN206479669U CN201720142432.5U CN201720142432U CN206479669U CN 206479669 U CN206479669 U CN 206479669U CN 201720142432 U CN201720142432 U CN 201720142432U CN 206479669 U CN206479669 U CN 206479669U
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- Prior art keywords
- guide plate
- light guide
- film layer
- light
- directing site
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- Light Guides In General And Applications Therefor (AREA)
Abstract
The utility model embodiment provides a kind of film layer, light guide plate assembly, backlight module and display device, it is related to display technology field, can solve the problem that the problem of light guide plate is required to the light guide plate more renewed when changing the size and density degree of light directing site in designing R＆D process every time.Film layer is arranged on light guide plate, and film layer can be removed from light guide plate, wherein, light directing site is provided with film layer.Light directing site is set in film layer, and film layer is arranged on light guide plate, can by light directing site destroy light guide plate inside total reflection and outgoing, remove and change the film layer for being provided with different arrangement density light directing sites, just can be on the premise of light guide plate be changed without, change the emitting brightness and light-emitting uniformity of the light via light guide plate outgoing, so as to save the design cost and replacing construction of light guide plate, improve the design efficiency of light guide plate.
Description
Technical field
The utility model is related to display technology field, more particularly to a kind of film layer, light guide plate assembly, backlight module and aobvious
Showing device.
Background technology
With developing rapidly for Display Technique, liquid crystal display (Liquid Crystal Display, LCD) is as a kind of
Panel display apparatus, the features such as there is small volume, low in energy consumption, radiationless and relatively low cost of manufacture because of it, and increasingly
It is applied to more among high-performance display field.
Liquid crystal display is a kind of passive luminescent device, it is necessary to which backlight module (Backlight Unite, BLU) is to liquid crystal
Display, which provides light source, makes its display image.In the prior art, backlight module includes light source and light guide plate, and light source is relative to leaded light
The incidence surface of plate is set, and the light-guide plate guides send the transmission direction of light beam from light source, and line source or spot light are changed
Into area source.Light guide plate is the core component of backlight module, and its main function is the scattering direction of correct guidance light, so as to be
Liquid crystal panel provides the area source that brightness is high, uniformity is good.
Light guide plate is generally used with high reflectivity and the light transmissive material of extinction does not make, the bottom surface relative with exiting surface
On be provided with reflector plate, light is inside incidence surface at a certain angle incident light guide plate, with larger after being reflected in bottom surface
Angular illumination is in light emission side, when the angle is more than a critical value, and light is that can be totally reflected in the exiting surface of light guide plate, is sent out
The light of raw total reflection is completely reflected back inside light guide plate and can not projected from light guide plate.In order to destroy total reflection condition so that
Light by light guide plate outgoing, made in the bottom surface of light guide plate have density, light directing site not of uniform size, light is radiated at guide-lighting net
Backward different direction reflection, that is, destroy the total reflection condition on exiting surface, light after the reflection that light passes through bottom surface on point
By exiting surface uniform.
Due to the size and its density degree for being set on bottom surface of light guide plate of light directing site, all can it is actual to light guide plate go out
Efficiency, uniformity of light etc. produce large effect, therefore, are directed to the display device of different display requirements, it is necessary to leaded light
The size and density degree of light directing site are specifically designed on plate.
In the prior art, generally light directing site is produced on light guide plate by printing the mode such as silk-screen, ink-jet, radium-shine,
In design and experimentation, size each time to light directing site and it is required to re-replace and makes with the change of density degree
Make new light guide plate, and can not be reused for the light guide plate after experiment, so not only waste repeatedly make light guide plate when
Between, also result in substantial amounts of cost and waste, increase the design R＆D costs of light guide plate.
Utility model content
The utility model embodiment provides a kind of film layer, light guide plate assembly, backlight module and display device, can solve the problem that
Light guide plate is required to the light guide plate more renewed when changing the size and density degree of light directing site in designing R＆D process every time
The problem of.
To reach above-mentioned purpose, embodiment of the present utility model is adopted the following technical scheme that：
The one side of the utility model embodiment provides a kind of film layer applied on light guide plate, and film layer, which is arranged on, to be led
On tabula rasa, and film layer can be removed from light guide plate, wherein, light directing site is provided with film layer.
It is preferred that, light directing site is raised in the surface of film layer.
It is preferred that, film layer is fexible film.
Further, light directing site is that can remove light directing site.
The another aspect of the utility model embodiment provides a kind of light guide plate assembly, including light guide plate and any as described above
The film layer of item, light guide plate includes exiting surface, the bottom surface relative with exiting surface, and the side intersected with exiting surface and bottom surface,
Film layer is arranged at the bottom surface of light guide plate.
It is preferred that, film layer is provided with bottom surface of the one side away from light guide plate of light directing site.
Optionally, film layer is attached at the bottom surface of light guide plate by printing opacity adhered layer.
It is preferred that, film layer and light guide plate carry the different electrostatic charge of polarity, with cause film layer by Electrostatic Absorption in
The bottom surface of light guide plate.
The another further aspect of the utility model embodiment provides a kind of backlight module, including light source, and any one as described above
Light guide plate assembly, the light that light source is sent is incident in light guide plate assembly by the side of light guide plate.
The another aspect of the utility model embodiment provides a kind of display device, including above-mentioned backlight module.
The utility model embodiment provides a kind of film layer, light guide plate assembly, backlight module and display device, and film layer is set
Put on light guide plate, and film layer can be removed from light guide plate, wherein, light directing site is provided with film layer.In film layer
Upper setting light directing site, and film layer is arranged on light guide plate, being all-trans inside light guide plate can be destroyed by light directing site
Penetrate and outgoing, remove and change the film layer for being provided with different arrangement density light directing sites, it becomes possible to be changed without light guide plate
Under the premise of, change the emitting brightness and light-emitting uniformity of the light via light guide plate outgoing, so as to save being designed to for light guide plate
Sheet and replacing construction, improve the design efficiency of light guide plate.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation for film layer applied on light guide plate that Fig. 1 provides for the utility model embodiment；
The shape of light directing site in a kind of film layer applied on light guide plate that Fig. 2 provides for the utility model embodiment
And arrangement mode schematic diagram；
A kind of structural representation for light guide plate assembly that Fig. 3 provides for the utility model embodiment；
In a kind of light guide plate assembly that Fig. 4 provides for the utility model embodiment by transparent adhered layer by film layer with leading
The structural representation of setting is pasted between tabula rasa；
A kind of structural representation for backlight module that Fig. 5 provides for the utility model embodiment.
Reference：
10- film layers；11- light directing sites；20- light guide plates；21- exiting surfaces；22- bottom surfaces；23- sides；30- printing opacities are pasted
Layer；40- light sources；50- light guide plate assemblies.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
The utility model embodiment provides a kind of film layer applied on light guide plate, as shown in figure 1, film layer 10 is set
On light guide plate 20, and film layer 10 can be removed from light guide plate 20, wherein, light directing site 11 is provided with film layer 10.
It should be noted that first, the film layer 10 that the utility model embodiment is provided removably is arranged on
Used on light guide plate 20.Film layer 10 is arranged on light guide plate 20, refers to that film layer 10 is arranged on the surface of light guide plate 20.Light
The interface of optically thinner medium (i.e. the less medium of refractive index) is incided by the interface of optically denser medium (i.e. the larger medium of refractive index),
When the angle of incidence is larger than a critical angle, light will not occur refraction but all be reflected back the phenomenon in optically denser medium, be referred to as being all-trans
Penetrate phenomenon.Light guide plate 20 is typically to be made by the higher material of reflectivity, and the light that light source is sent is less by refractive index
It is incident in air after light guide plate 20, due to occurring total reflection phenomenon, light is difficult to the outgoing from light guide plate 20, and film layer 10 is set
Put after the light in the surface of light guide plate 20, light guide plate 20 is radiated in the light directing site 11 of film layer 10, due to guide-lighting net
Point 11 scattering process and change propagation reflections route, so that the total reflection in light guide plate 20 is destroyed, to cause through light directing site
Light after 11 reflections is projected by the exiting surface of light guide plate 20.Therefore, film layer 10 is generally arranged on light guide plate 20 and light extraction
The one side that face mutually deviates from.
Second, film layer 10 is removably arranged on light guide plate 20, i.e., when in use, film layer 10 and leaded light
Setting is brought into close contact between plate 20, when not in use, film layer 10 can be removed from light guide plate 20.For film layer 10 with leading
The concrete mode of removable connection is not limited herein between tabula rasa 20, as long as before film layer 10 or light guide plate 20 is not damaged
Put, satisfaction can will be bonded to each other between film layer 10 and light guide plate 20 and separate.
3rd, the arrangement between the concrete shape and multiple light directing sites 11 of the light directing site 11 set in film layer 10
Mode, density degree are not limited herein, and those skilled in the art can be actually needed progress specifically according in
Set, for example, light directing site 11 could be arranged to multiple raised round dots arranged in matrix form, and example in film layer 10
Such as, light directing site 11 could be arranged to the pit arranged in a jumble with certain density in film layer 10, for another example light directing site 11
It may be arranged as including the form of raised round dot and pit in film layer 10.
Light directing site 11 is made in film layer 10, the film layer 10 that making has light directing site 11 is then attached to leaded light
Come into operation on plate 20, when according to the light extraction situation of light guide plate 10 requirement, it is necessary to adjust light directing site 11 arrangement mode or
During person's arrangement density, without changing light guide plate 20, and only need to remove film layer 10 from light guide plate 20, remake new
Film layer 10, is made and original film in new film layer 10 by the mode such as net-point printing silk-screen, ink-jet, radium-shine
Arrangement mode or the different light directing site 11 of arrangement density on layer 10, and the film layer 10 completed is attached and leaded light again
It can be come into operation again on plate 20.
The utility model embodiment provides a kind of film layer, light guide plate assembly, backlight module and display device, and film layer is set
Put on light guide plate, and film layer can be removed from light guide plate, wherein, light directing site is provided with film layer.In film layer
Upper setting light directing site, and film layer is arranged on light guide plate, being all-trans inside light guide plate can be destroyed by light directing site
Penetrate and outgoing, remove and change the film layer for being provided with different arrangement density light directing sites, it becomes possible to be changed without light guide plate
Under the premise of, change the emitting brightness and light-emitting uniformity of the light via light guide plate outgoing, so as to save being designed to for light guide plate
Sheet and replacing construction, improve the design efficiency of light guide plate.
It is preferred that, as shown in Fig. 2 light directing site 11 is raised in the surface of film layer 10.
For example in Fig. 2, light directing site 11 is closely arranged in for raised round dot, and multiple light directing sites 11 in matrix form
The surface of film layer 10.
Light directing site 11 is produced on light guide plate 20 or film typically by the mode such as net-point printing silk-screen, ink-jet, radium-shine
On the carrier of 10 grade of layer, the light directing site 11 for being raised in the surface of film layer 10 is made using existing set-up mode, can be reduced
Manufacture difficulty, reduces manufacturing procedure, improves producing efficiency.
It is preferred that, film layer 10 is fexible film.
So, on the one hand, when the film layer 10 that the utility model embodiment is provided is applied in flexible display apparatus
Light guide plate 20 on when, the bendability characteristics of flexible display apparatus can be coordinated, bent therewith when flexible display apparatus is bent,
So as to avoid occurring due to the situation that angle of bend exceedes the tenability limit of stiffness films and causes film layer 10 to be broken.Flexible thin
Film can apply in conventional rigid display device and flexible display apparatus, strong adaptability, improve answering for film layer 10
With scope, on the other hand, when film layer 10 is fexible film, it is easy to behaviour when film layer 10 is removed from light guide plate 20
Make.
Further, light directing site 11 is that can remove light directing site.
When light directing site 11 in the form of being raised in the surface of film layer 10 when to set, it is preferred that light directing site 11 is set
For light directing site can be removed.For example, the material removed by choosing erasable makes light directing site 11 in film layer 10, then
The film layer 10 that making has light directing site 11 is attached on light guide plate 20 and come into operation, when according to the light extraction situation of light guide plate 10
Requirement, it is necessary to adjust light directing site 11 arrangement mode or arrangement density when, can need not only change light guide plate 20, together
When can also need not change film layer 10, the light directing site 11 in film layer 10 is only wiped into removal, again in film layer 10
Arrangement mode or the different light directing site 11 of arrangement density are made by the mode such as net-point printing silk-screen, ink-jet, radium-shine, you can again
It is secondary to come into operation.
So, when needing to change the emitting brightness and light-emitting uniformity of emergent ray on light guide plate 20, not only may be used
To continue to continue to use original light guide plate 20, while also without film layer 10 is changed, only by the light directing site 11 in film layer 10
Wipe removal to remake, further save the design cost of light guide plate.
In addition, this production method for removing light directing site, can also be applied directly on light guide plate 20, i.e., directly exist
Light directing site can be removed by being made on light guide plate 20 by the mode such as net-point printing silk-screen, ink-jet, radium-shine, when need change light guide plate
On 20 when the emitting brightness and light-emitting uniformity of emergent ray, wiping removal is original to remove light directing site, remakes new
Remove light directing site.
It is contemplated that in actual applications, even for light directing site can be removed, being removed by repeatedly making and wiping
Afterwards, it is difficult to which the meeting avoided causes a certain degree of impression or scuffing on its carrier, therefore, in the utility model embodiment preferably
, light directing site can be removed and be produced in film layer 10 by remaining as, then by film layer 10 attach with the structure on light guide plate 20,
To be made and wipe after removal can remove light directing site multiple, when having impression in film layer 10 or scratching, only more
Film layer 10 is changed without changing light guide plate 20.
It is preferred that, the thickness of film layer 10 is 0.1mm~0.5mm.
If the thickness of film layer 10 be less than 0.1mm, may it is excessively thin due to the thickness of film layer 10 and it is easy make leaded light net
Sustain damage to form substandard products during point 11, if the thickness of film layer 10 is more than 0.5mm, be unfavorable for wanting for display device slimming
Ask, and waste membrane material, increase cost.
The another aspect of the utility model embodiment provides a kind of light guide plate assembly, as shown in figure 3, including light guide plate 20 with
And film layer 10 any one of as described above, light guide plate 20 includes exiting surface 21, the bottom surface 22 relative with exiting surface 21, and with going out
The intersecting side 23 of smooth surface 21 and bottom surface 22, film layer 10 is arranged at the bottom surface 22 of light guide plate 20.
As shown in figure 3, light (the light path trend of light is as shown by the arrows in Figure 3) is by one of side of light guide plate 20
23 are incident to inside light guide plate 20 as incidence surface, and the scattering process by light directing site 11 in film layer 10, which is destroyed, to be totally reflected,
Light reflexes to the exiting surface 21 of light guide plate 20 and outgoing.
In addition, some light transmission and the light loss that causes, usual light guide plate on bottom surface 22 in order to reduce light guide plate 20
Component also includes being arranged on the reflector plate at the bottom surface 22 of light guide plate 20, and reflector plate is used for the internal irradiation of light guide plate 20 in bottom surface 22
On light be all reflected back inside light guide plate 20.In the light guide plate assembly that the utility model embodiment is provided, film layer 10 can
To be wholely set with reflector plate, or from the material making film layer 10 with reflection function, to cause film layer 10 passing through
While the destruction total reflection of light directing site 11, also with reflecting light back into inside light guide plate 20, the function of light loss is reduced, from
And the reflector plate in light guide plate assembly can be saved, reduce the integral thickness of light guide plate assembly.
It is preferred that, as shown in figure 3, film layer 10 is provided with bottom surface 22 of the one side away from light guide plate 20 of light directing site 11.
So, on the one hand, the one side that light directing site 11 is not provided with film layer 10 is smooth flat, is enabled to thin
Fitting between film layer 10 and light guide plate 20 is more close, on the other hand, wants to attach between smooth flat and smooth flat, also can
It is enough to avoid producing space between film layer 10 and light guide plate 20 as far as possible.
It is specific optional, as shown in figure 4, film layer 10 is attached at the bottom surface 22 of light guide plate 20 by printing opacity adhered layer 30.
Wherein, printing opacity adhered layer 30 can be from the transparent adhesive tape that can be removed, on the one hand, transparent printing opacity adhered layer 30 is viscous
Patch avoids the propagation for stopping light from causing light loss when using, on the other hand, can reduce viscous when removing printing opacity adhered layer 30
The surface damage of film layer 10 or light guide plate 20 caused by patch power.
Film layer 10 is attached to the bottom surface 22 of light guide plate 20 by printing opacity adhered layer 30, it is possible to increase film layer 10 is with leading
Firm pasting between the bottom surface 22 of tabula rasa 20, reduction when light guide plate assembly such as is given a shock at the ectocine film layer 10 with
The possibility relatively moved between light guide plate 20.
It is preferred that, film layer 10 carries the different electrostatic charge of polarity with light guide plate 20, to cause film layer 10 by electrostatic
It is adsorbed in the bottom surface 22 of light guide plate 20.
Because the printing opacity adhered layer 30 with stickup property is when removing, it is difficult to which the meeting avoided is to film layer 10 or light guide plate
20 surface produces a certain degree of damage, therefore, more preferred, film layer 10 is carried polarity with light guide plate 20 different
Electrostatic charge, to enable film layer 10 to be adsorbed in the bottom surface 22 of light guide plate 20 by way of Electrostatic Absorption.So, exist
When will attach setting between film layer 10 and light guide plate 20, it may be such that film layer 10 with leading without extra increase other structures layer
Attach, and when film layer 10 is removed from the bottom surface 22 of light guide plate 20, to film layer 10 or will not lead between tabula rasa 20
The surface of tabula rasa 20 produces damage.
The another further aspect of the utility model embodiment provides a kind of backlight module, as shown in figure 5, including light source 40, and
Light guide plate assembly 50 any one of as described above, the light that light source 40 is sent is incident to light guide plate assembly by the side 23 of light guide plate 20
In 50.
As shown in figure 5, the utility model embodiment provide backlight module be side entrance back module, light guide plate 20 its
In side 23 be light guide plate 20 incidence surface, light guide plate 20 is wherein in light guide plate assembly 50 for the light that light source 40 is sent
One side 23 is incident to inside light guide plate 20, light occur inside light guide plate 20 total reflection and can not outgoing, be provided with and lead
The film layer 10 of light site 11 attaches the bottom surface 22 for being arranged on light guide plate 20, when light is reflexed in film layer 10, light directing site
11 send light scattering, so that the total reflection inside light guide plate 20 is destroyed, to cause the light by scattering process the bottom of due to
The relative outgoing of exiting surface 21 in face 22.
The another aspect of the utility model embodiment provides a kind of display device, including above-mentioned backlight module.
In the utility model embodiment, display device specifically can at least include liquid crystal display device device, for example should
Display device can for liquid crystal display, LCD TV, DPF, mobile phone or tablet personal computer etc. it is any have display function and
Need the product or part by backlight module offer backlight.
Above-mentioned for applying saying for the film layer 10 on light guide plate 20 and the embodiment of light guide plate assembly 50
In bright, on the light guide plate 20 how being applied to for film layer 10, and light guide plate assembly 50 is applied in backlight module
Concrete mode and operation principle be described in detail, here is omitted.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, it should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power
The protection domain that profit is required is defined.
Claims (10)
1. a kind of film layer applied on light guide plate, it is characterised in that the film layer is arranged on light guide plate, and it is described thin
Film layer can be removed from the light guide plate, wherein, it is provided with light directing site in the film layer.
2. film layer according to claim 1, it is characterised in that the light directing site is raised in the table of the film layer
Face.
3. film layer according to claim 1, it is characterised in that the film layer is fexible film.
4. film layer according to claim 2, it is characterised in that the light directing site is that can remove light directing site.
5. a kind of light guide plate assembly, it is characterised in that the film including light guide plate and as described in claim any one of 1-4
Layer, the light guide plate includes exiting surface, the bottom surface relative with the exiting surface, and intersects with the exiting surface and the bottom surface
Side, the film layer is arranged at the bottom surface of the light guide plate.
6. light guide plate assembly according to claim 5, it is characterised in that the film layer is provided with the one side of light directing site
Away from the bottom surface of the light guide plate.
7. light guide plate assembly according to claim 6, it is characterised in that the film layer is attached at by printing opacity adhered layer
The bottom surface of the light guide plate.
8. light guide plate assembly according to claim 6, it is characterised in that the film layer carries polarity with the light guide plate
Different electrostatic charge, to cause the film layer by Electrostatic Absorption in the bottom surface of the light guide plate.
9. a kind of backlight module, it is characterised in that including light source, and the light guide plate group as described in claim any one of 5-8
Part, the light that the light source is sent is incident in the light guide plate assembly by the side of the light guide plate.
10. a kind of display device, it is characterised in that including backlight module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720142432.5U CN206479669U (en) | 2017-02-16 | 2017-02-16 | A kind of film layer, light guide plate assembly, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720142432.5U CN206479669U (en) | 2017-02-16 | 2017-02-16 | A kind of film layer, light guide plate assembly, backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN206479669U true CN206479669U (en) | 2017-09-08 |
Family
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|---|---|---|---|
| CN201720142432.5U Expired - Fee Related CN206479669U (en) | 2017-02-16 | 2017-02-16 | A kind of film layer, light guide plate assembly, backlight module and display device |
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| CN (1) | CN206479669U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109224A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | A kind of laser array wireless energy transfer system based on light guide plate |
| CN110109223A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | A kind of laser radio energy transmission system based on light guide plate |
| CN111367008A (en) * | 2020-03-30 | 2020-07-03 | 昆山龙腾光电股份有限公司 | Light guide plate and backlight module |
-
2017
- 2017-02-16 CN CN201720142432.5U patent/CN206479669U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109224A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | A kind of laser array wireless energy transfer system based on light guide plate |
| CN110109223A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | A kind of laser radio energy transmission system based on light guide plate |
| CN110109223B (en) * | 2019-05-14 | 2024-04-26 | 深圳技术大学 | Laser wireless energy transmission system based on light guide plate |
| CN111367008A (en) * | 2020-03-30 | 2020-07-03 | 昆山龙腾光电股份有限公司 | Light guide plate and backlight module |
| CN111367008B (en) * | 2020-03-30 | 2022-04-22 | 昆山龙腾光电股份有限公司 | Light guide plate and backlight module |
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