CN110208987A - Down straight aphototropism mode set and display - Google Patents
Down straight aphototropism mode set and display Download PDFInfo
- Publication number
- CN110208987A CN110208987A CN201910560032.XA CN201910560032A CN110208987A CN 110208987 A CN110208987 A CN 110208987A CN 201910560032 A CN201910560032 A CN 201910560032A CN 110208987 A CN110208987 A CN 110208987A
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- China
- Prior art keywords
- light
- light guiding
- backboard
- guiding film
- source component
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/009—Positioning aspects of the light source in the package
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
Abstract
The present invention discloses a kind of down straight aphototropism mode set and display, the down straight aphototropism mode set includes backboard and the liquid crystal display panel that is mounted on backboard, cavity is formed between the liquid crystal display panel and the backboard, it further include multiple light guiding films, multiple light guiding films are placed in the cavity, and multiple light guiding film arranged for interval and it is covered in the backboard, light source component is provided between two light guiding films of arbitrary neighborhood；The light guiding film is formed with incidence surface towards the side of the light source component, the light guiding film is formed with light-emitting surface towards the side of the liquid crystal display panel, the light that the light source component issues is injected in the light guiding film by the incidence surface, and is projected from the light-emitting surface to liquid crystal display panel after the light guiding film diffusing reflection.The light that the present invention enables to light source component to issue equably is projected to liquid crystal display panel, so that the display effect of liquid crystal display panel is more bright, uniform.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of down straight aphototropism mode set and display.
Background technique
With the extensive use of LCD technology, people also proposed requirements at the higher level to the display effect of display.But
Liquid crystal display panel itself does not have luminous characteristic, it is therefore desirable to provide light source using backlight module.
In traditional down straight aphototropism mode set, luminous light source component is set to the baseplane of backboard, by light source component outside
Light is projected to the diffuser plate on liquid crystal display panel inner wall to provide light source by the lens of cover.However the light gone out by lens projects
It is distributed on diffuser plate and uneven, is also easy to produce apparent light and shade boundary.And it also requires formed in backboard and liquid crystal display panel
Bracket is set in cavity so that diffuser plate to be fixed on to the inner wall of liquid crystal display panel, and the intracorporal bracket of chamber also will affect in backboard cavity
The propagation of light is uneven to further generate light and shade.Simultaneously as the side wall of backboard and the inclined angle of diffuser plate are arranged, light
The reflection that line is easily detected by reflector plate reaches the corner of diffuser plate, is also easy to form dark angle in the corner of diffuser plate, influences to show
Show effect.
Summary of the invention
The main object of the present invention is to provide a kind of down straight aphototropism mode set and display, to solve backlight module using saturating
The light that mirror projects is uneven, leads to the problem of light and shade region to influence display effect.
To achieve the above object, down straight aphototropism mode set proposed by the present invention, including backboard and the liquid being mounted on backboard
Crystal panel forms cavity, the down straight aphototropism mode set between the liquid crystal display panel and the backboard further include:
Multiple light guiding films, multiple light guiding films are placed in the cavity, and multiple light guiding film arranged for interval are simultaneously
It is covered in the backboard, is provided with light source component between two light guiding films of arbitrary neighborhood；
The light guiding film is formed with incidence surface towards the side of the light source component, and the light guiding film is towards the liquid crystal display panel
Side be formed with light-emitting surface, the light that the light source component issues passes through by the incidence surface injection light guiding film
It is projected from the light-emitting surface to liquid crystal display panel after the light guiding film diffusing reflection.
Preferably, the light guiding film is sticked towards the side of the backboard reflector plate, and the light guiding film is towards the liquid
The side of crystal panel is provided with diffusion layer, and the diffusion layer is formed with the light-emitting surface.
Preferably, the side in the light guiding film close to the reflector plate is formed with multiple convex sites, multiple described convex
The outer surface of shape site arranged for interval, the convex site is provided with reflectance coating.
Preferably, multiple site Heterogeneous Permutations.
Preferably, even spread has diffusion particle on the diffusion layer.
Preferably, the down straight aphototropism mode set further includes the heat radiation rack being mounted on the backboard, the light source component peace
Loaded on the heat radiation rack.
Preferably, the heat radiation rack includes that the first heat sink strip being sticked on backboard radiates with being vertically mounted on described first
The two sides of the second heat sink strip on item, second heat sink strip are mounted on the light source component.
Preferably, the incidence surface and the light source component face are arranged, and the height of the incidence surface is greater than or equal to institute
State the height of light source component.
Preferably, the position on the backboard close to the light source component is provided with cushion block, and the light guiding film passes through the pad
Block is installed on the backboard, so that the incidence surface and the light source component face are arranged.
The present invention also proposes that a kind of display, the display include down straight aphototropism mode set as described above.
In technical solution of the present invention, multiple light guiding films are set in the cavity that backboard and liquid crystal display panel are formed, and adjacent leads
Luminous light source component is provided between light film, after incidence surface of the light by light guiding film that light source component issues injects light guiding film,
It is propagated by reflection in light guiding film, is projected from the light-emitting surface of light guiding film to forming backlight on liquid crystal display panel.The light that light source component issues
Line after reflection is propagated, can equably be projected to liquid crystal display panel, so that liquid crystal surface in light guiding film on light-emitting surface
Plate is irradiated by uniform light, keeps its display effect more bright, uniform, additionally it is possible to reduce the number of parts in mould group, drop
Low production cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the side sectional view of an embodiment of down straight aphototropism mode set of the present invention；
Fig. 2 is the part-structure sectional view of an embodiment of down straight aphototropism mode set of the present invention；
Fig. 3 is that the convex site of an embodiment of down straight aphototropism mode set of the present invention arranges schematic diagram；
Fig. 4 is the density design curve of the convex site of an embodiment of down straight aphototropism mode set of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 10 | Backboard | 20 | Liquid crystal display panel |
| 30 | Light guiding film | 31 | Incidence surface |
| 32 | Light-emitting surface | 33 | Reflector plate |
| 34 | Diffusion layer | 341 | Diffusion particle |
| 35 | Convex site | 40 | Light source component |
| 50 | Heat radiation rack | 51 | First heat sink strip |
| 52 | Second heat sink strip | 53 | Cushion block |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense,
For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, be also possible to
Electrical connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
It in addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field
Based on logical technical staff can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this
The combination of technical solution is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of down straight aphototropism mode set, to solve the problems, such as that backlight module throw light is non-uniform.
As shown in Figure 1, the down straight aphototropism mode set proposed in an embodiment of the present invention includes backboard 10 and liquid crystal display panel
20, liquid crystal display panel 20 is installed on backboard 10, and forms cavity between backboard 10.Down straight aphototropism mode set further include have it is multiple
Light guiding film 30, multiple light guiding films 30 are placed in the cavity that liquid crystal display panel 20 and backboard 10 are formed, and multiple light guiding films 30
Interval is arranged and is covered on backboard 10, and the gap location between the light guiding film 30 of arbitrary neighborhood is provided with the light that can be shone
Source part 40.Light guiding film 30 is formed with incidence surface 31 towards the side of luminous light source component 40, the light that light source component 40 issues passes through
Incidence surface 31 enters light guiding film 30, and light guiding film 30 is formed with light-emitting surface 32 towards the side of liquid crystal display panel 20, in light guiding film 30
Light can be projected by light-emitting surface 32.The light that light source component 40 issues is entered in light guiding film 30 by incidence surface 31, and light exists
It can be projected from light-emitting surface 32 to liquid crystal display panel 20 after the diffusing reflection on different directions in light guiding film 30.
In technical solution of the present invention, light source component 40 is arranged between two light guiding films 30, the light that light source component 40 is issued
It can be injected, and be carried out in light guiding film 30 after the reflection on different directions propagates by the incidence surface 31 of light guiding film 30, from leading
The light-emitting surface 32 of light film 30 is projected to liquid crystal display panel 20, so that the light that light source component 40 is issued can be by light guiding film
30 light is equably projected on liquid crystal display panel 20 after propagating, so that liquid crystal display panel 20 either center or corner can connect
The light of the sending of light source component 40 is received, and keeps its display effect more bright, uniform.Pass through light source component 40 and facing light sources part
The diffusing reflection of light in light guiding film 30 can be realized in the light guiding film 30 of 40 settings, and then light is projected to liquid crystal from light guiding film 30
Panel 20 is projected with the backlight for realizing liquid crystal display, and 40 quantity of light source component needed for reducing down straight aphototropism mode set simplifies
Module design, reduces production cost.And since light guiding film 30 does not need to connect with backboard 10, backboard 10 can be surpassed
Thin processing mitigates 10 weight of backboard, and then mitigate entire down straight aphototropism mode set while saving backboard 10 is taken up space
Quality.
It should be noted that multiple light guiding films 30 in the down straight aphototropism mode set can be set to two, two leaded lights
Film 30 covers backboard 10 and is arranged, and light source component 40 is provided between two light guiding films 30, and light source component 40 can be led to two respectively
31 direction of incidence surface of light film 30 emits beam.Wherein, light source component 40 can be strip source part 40, be set in backboard 10
On line, that is, the central point that light source component 40 can cross backboard 10 is parallel with the long side of backboard 10, may be set to be backboard 10
Central point is parallel with the broadside of backboard 10, and under two kinds of different set-up modes of light source component 40, light guiding film 30 is all set in light source
The two sides of part 40.
Further, with reference to Fig. 1 and Fig. 2, light guiding film 30 is sticked towards the side of backboard 10 reflector plate 33, light guiding film 30
Side towards liquid crystal display panel 20 is provided with diffusion layer 34, and diffusion layer 34 is formed with the light-emitting surface 32 of light guiding film 30.Light source component 40
The light launched after incidence surface 31 injects light guiding film 30 can side with directive light guiding film 30 towards backboard 10, due to
The material of light guiding film 30 is corresponding with refractive index, injects incidence angle of the light guiding film 30 towards 10 side of backboard when light and is less than the folding
When penetrating the corresponding critical angle of rate, light that light can generate refraction to project in light guiding film 30, and project towards 10 side of backboard
It will be re-injected into light guiding film 30 after being reflected on the reflector plate 33 that line is sticked in light guiding film 30, so that light can not be from leading
Light film 30 is projected towards the side of backboard 10, to ensure that light can be projected from light-emitting surface 32 to liquid crystal display panel 20, improves liquid
The light that the light source component 40 that crystal panel 20 can receive issues.Specifically, the material of light guiding film 30 can be PET
(Polyethylene terephthalate, polyethylene terephthalate), refractive index 1.65.The diffusion of light guiding film 30
The light of directive diffusion layer 34 can be then scattered by layer 34, to guarantee that the light projected from diffusion layer 34 is more uniform.
Further, in a preferred embodiment, light guiding film 30 is formed with multiple convex nets close to the side of reflector plate 33
Point 35, convex site 35 can be formed for light guiding film 30 through hot pressing, arranged for interval between multiple convex sites 35, and each
It is provided on the outer surface of convex site 35 reflectance coating (not shown), reflectance coating, which can will inject into, reaches convex net in light guiding film 30
Light on point 35 is totally reflected, and since made normal direction is inconsistent on the different point in convex site 35, is penetrated
The direction for entering the light total reflection of different location on convex site 35 is not also identical, so as to will inject into the light of light guiding film 30
Diffusing reflection is carried out, to be propagated and be projected to light-emitting surface to one end far from incidence surface 31 by light in light guiding film 30
32, so that the light-emitting surface 32 of light guiding film 30 can project uniform light.
In the above-described embodiments, referring to Fig. 2 and Fig. 3, multiple convex sites 35 in light guiding film 30 are to be dislocatedly distributed.May be used also
To set equal spacing with the line space of the convex site 35 of adjacent rows for every a line convex site 35.By by light guiding film
Convex site 35 in 30 is arranged according to certain rules, and can guarantee to carry out irreflexive light by convex site 35 can
It is projected relatively uniformly to liquid crystal display panel 20, to guarantee the bright and uniform display effect of liquid crystal display panel 20.
Specifically, with continued reference to Fig. 3, the convex site 35 in light guiding film 30 is determinant distribution, and convex site 35 is set
When being set to hemispherical site, the practical calculation formula of 35 density of convex site are as follows:
ρ=π r2/(x*y)；
Wherein, ρ is dot density, and r is the radius of hemispherical convex site 35, and x is with convex adjacent in a line site 35
Spacing, y be adjacent rows convex site 35 spacing.
In the present embodiment, the incidence surface 31 with convex site 35 far from light guiding film 30, light directive convex site 35
Incidence angle it is increasing, convex site 35 is more and more remoter at a distance from incidence surface 31, in order to be kept away from incidence surface 31
Light guiding film 30 still can equably project light to liquid crystal display panel 20, need the increase when convex site 35 is far from incidence surface 31
The density of convex site 35, referring to shown in Fig. 4, Fig. 4 is the density design curve of convex site, setting 35 density of convex site
Formula are as follows:
ρ=a*lb+G；
Wherein, a, b be preset curvature parameters, G be 35 density of convex site initial value, l be convex site 35 with enter
Distance between smooth surface 31.It should be noted that more light will be accumulated in the one end of light guiding film 30 far from incidence surface 31, from
And a Duan Liangqu is formed, the display effect of liquid crystal display panel 20 is influenced, therefore, in light guiding film 30 far from pre- in 31 one end of incidence surface
If the density of the convex site 35 in regional scope needs on the density basis being calculated according to 35 density formula of convex site
On reduced, i.e., with the density value of bold portion replace dotted portion density value, to avoid light at the end of light guiding film 30
End accumulation causes 20 partial region of liquid crystal display panel to form clear zone.
Further, even spread has diffusion particle 341 on the diffusion layer 34 of light guiding film 30, and diffusion particle 341 can incite somebody to action
It is diffused by the light of diffusion layer 34, so that the light of injection to liquid crystal display panel 20 is more uniform.Specifically, it spreads
Particle 341 can be PMMA (polymethyl methacrylate, polymethyl methacrylate) particle.PMMA particle may be used also
By being coated on light guiding film 30 after mixing with glue close to the side of liquid crystal display panel 20, to form the light-emitting surface of light guiding film 30
32。
Referring to Fig. 2, in a preferred embodiment, down straight aphototropism mode set further includes the heat radiation rack being mounted on backboard 10
50, light source component 40 can be installed on heat radiation rack 50, so that the heat of generation is passed through heat radiation rack 50 when light source component 40 shines
It sheds, extends the service life of light source component 40.
Further, heat radiation rack 50 can be mutually perpendicular first heat sink strip 51 and the second heat sink strip 52, the first heat dissipation
Item 51 is attached on backboard 10, and vertical first heat sink strip 51 of the second heat sink strip 52 is arranged, and the two sides of the second heat sink strip 52 are pacified
Equipped with light source component 40.Wherein, light source component 40 can be LED light bar, by the way that two LED light bars are separately mounted to the second heat sink strip
52 two sides enable to the light guiding film 30 of 52 two sides of the second heat sink strip that can receive what corresponding LED light bar was issued
Light is that two LED light bars radiate using a heat radiation rack 50, to reduce the quantity of heat radiation rack 50, reduces mould composition
This.
Further, with continued reference to Fig. 2, the incidence surface 31 and light source component 40 of light guiding film 30 are arranged in face, so that leading
Light film 30 can receive the light of the sending of light source component 40 as much as possible.31 height of incidence surface of light guiding film 30 can be set to greatly
In or equal to 40 light emitting region of light source component height, i.e. H >=h, so that the light energy that the light emitting region of light source component 40 issues
Enough injection incidence surfaces 31 more as far as possible, promote the efficiency of light energy utilization of light source component 40.It should be noted that the incidence surface of light guiding film 30
31 can also be spaced certain gap between the light emitting region of light source component 40, to prevent light guiding film 30 from being issued by light source component 40
Heat damages guarantee the safety of mould group.Specifically, the gap of incidence surface 31 and light source component 40 can be 0.4mm.
In a preferred embodiment, the position on backboard 10 close to light source component 40 is additionally provided with cushion block 53, and light guiding film 30 is logical
Cushion block 53 is crossed to be mounted and fixed on backboard 10 so that the incidence surface 31 of light guiding film 30 can it is padded through cushion block 53 and with light
The setting of 40 face of source part, the light for allowing light source component 40 to issue more enter incidence surface 31.
In addition, the present invention also provides a kind of displays comprising there is down straight aphototropism mode set as described above.The straight-down negative
The specific structure of backlight module is referring to above-described embodiment, since robot uses whole technical solutions of above-described embodiment, because
This at least has all beneficial effects brought by the technical solution of above-described embodiment, will not repeat them here.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all in the present invention
Design under, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/be used in other phases indirectly
The technical field of pass is included in scope of patent protection of the invention.
Claims (10)
1. a kind of down straight aphototropism mode set, including backboard and the liquid crystal display panel being mounted on backboard, the liquid crystal display panel with it is described
Cavity is formed between backboard, which is characterized in that the down straight aphototropism mode set further include:
Multiple light guiding films, multiple light guiding films are placed in the cavity, and multiple light guiding film arranged for interval and are covered
Light source component is provided between the backboard, two light guiding films of arbitrary neighborhood；
The light guiding film is formed with incidence surface towards the side of the light source component, the light guiding film towards the liquid crystal display panel one
Side is formed with light-emitting surface, and the light that the light source component issues is injected in the light guiding film by the incidence surface, and described in process
It is projected from the light-emitting surface to liquid crystal display panel after light guiding film diffusing reflection.
2. down straight aphototropism mode set as described in claim 1, which is characterized in that side of the light guiding film towards the backboard
Being sticked has reflector plate, and the light guiding film is provided with diffusion layer towards the side of the liquid crystal display panel, and the diffusion layer is formed
State light-emitting surface.
3. down straight aphototropism mode set as claimed in claim 2, which is characterized in that close to the reflector plate in the light guiding film
Side is formed with multiple convex sites, and multiple convex site arranged for interval, the outer surface of the convex site is provided with instead
Penetrate film.
4. down straight aphototropism mode set as claimed in claim 2, which is characterized in that multiple site Heterogeneous Permutations.
5. down straight aphototropism mode set as claimed in claim 2, which is characterized in that even spread has diffusion grain on the diffusion layer
Son.
6. down straight aphototropism mode set according to any one of claims 1 to 5, which is characterized in that the down straight aphototropism mode set
It further include the heat radiation rack being mounted on the backboard, the light source component is installed on the heat radiation rack.
7. down straight aphototropism mode set as claimed in claim 6, which is characterized in that the heat radiation rack includes being sticked on backboard
First heat sink strip and the second heat sink strip being vertically mounted on first heat sink strip, the two sides of second heat sink strip are respectively mounted
There is the light source component.
8. down straight aphototropism mode set according to any one of claims 1 to 5, which is characterized in that the incidence surface and the light
The setting of source part face, and the height of the incidence surface is greater than or equal to the height of the light source component.
9. down straight aphototropism mode set according to any one of claims 1 to 5, which is characterized in that close to described on the backboard
The position of light source component is provided with cushion block, and the light guiding film is installed on the backboard by the cushion block, so that the incidence surface
It is arranged with the light source component face.
10. a kind of display, which is characterized in that the display includes straight-down negative as claimed in any one of claims 1-9 wherein
Backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560032.XA CN110208987A (en) | 2019-06-26 | 2019-06-26 | Down straight aphototropism mode set and display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560032.XA CN110208987A (en) | 2019-06-26 | 2019-06-26 | Down straight aphototropism mode set and display |
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| Publication Number | Publication Date |
|---|---|
| CN110208987A true CN110208987A (en) | 2019-09-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910560032.XA Pending CN110208987A (en) | 2019-06-26 | 2019-06-26 | Down straight aphototropism mode set and display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609418A (en) * | 2019-09-24 | 2019-12-24 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
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Application publication date: 20190906 |