CN110095835A - A kind of backlight module and electronic device - Google Patents
A kind of backlight module and electronic device Download PDFInfo
- Publication number
- CN110095835A CN110095835A CN201810106233.8A CN201810106233A CN110095835A CN 110095835 A CN110095835 A CN 110095835A CN 201810106233 A CN201810106233 A CN 201810106233A CN 110095835 A CN110095835 A CN 110095835A
- Authority
- CN
- China
- Prior art keywords
- light
- backlight module
- enhancement film
- bright enhancement
- guide plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
- G02B6/0051—Diffusing sheet or layer
-
- 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
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
This application discloses a kind of backlight module and electronic devices.Backlight module includes: light guide plate, including incidence surface and light-emitting surface；Light source is arranged in incidence surface side；Even optical element, is arranged on the light-emitting surface of light guide plate, and even optical element is located in non-display area close to one end of incidence surface；Light shield layer is arranged in non-display area, and between light guide plate and even optical element.Therefore, light can be stopped to be leaked to outside from non-display area, backlight module may further be avoided the phenomenon that light leakage occur in the case where reducing the width for the non-display area that backlight module occupies.
Description
Technical field
This application involves the field of backlights of electronic device, more particularly to a kind of backlight module and electronic device.
Background technique
Currently, with the development of science and technology, the electronic devices such as smart phone are increasingly at necessity for people's lives.
Backlight module is the important component of electronic device, and the backlight module of the portable electronic devices such as smart phone is logical at present
Frequently with side entrance back module, i.e., it is electricity after leaded light that the light that light source issues injects light guide plate from light guide plate side through the light guide plate
The display panel of sub-device provides backlight, however since the light source of this side entrance back module and some relevant structures need
The side of light guide plate is set, therefore, occupies biggish non-display area, the realization for being unfavorable for narrow frame and shielding comprehensively, such as
What shortens backlight module in the width of non-display area and does not influence the normal display of backlight module and display panel, becomes people
Focus of attention problem.
Summary of the invention
On the one hand, the embodiment of the present application provides a kind of backlight module, and backlight module includes: light guide plate, including incidence surface
And light-emitting surface；Light source is arranged in incidence surface side；Even optical element, is arranged on the light-emitting surface of light guide plate, even optical element close to enter
One end of smooth surface is located in non-display area；Light shield layer is arranged in non-display area, and between light guide plate and even optical element.
On the other hand, the embodiment of the present application also provides a kind of electronic device, electronic device includes previously described backlight
Mould group.
The embodiment of the present application, can be with by the way that light shield layer is arranged in non-display area, and between light guide plate and even optical element
Light is stopped to be leaked to outside from non-display area, therefore can be in the feelings for the width for reducing the non-display area that backlight module occupies
Under condition, backlight module is avoided the phenomenon that light leakage occur.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for backlight module that the application first embodiment provides；
Fig. 2 is the structural schematic diagram of the even optical element of backlight module shown in FIG. 1；
Fig. 3 is the backlight module light shield layer shading schematic illustration that the application first embodiment provides；
Fig. 4 is a kind of schematic cross-sectional view of backlight module of the application second embodiment；
Fig. 5 is another schematic cross-sectional view of the backlight module of the application second embodiment；
Fig. 6 is the diffusion barrier of the application second embodiment and the structural schematic diagram of the second bright enhancement film；
Fig. 7 is the schematic cross-sectional view of the backlight module of the application 3rd embodiment；
Fig. 8 is the structural schematic diagram of the first bright enhancement film of the application 3rd embodiment；
Fig. 9 is the decomposition texture schematic diagram of the embodiment of the present application electronic device.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.It is understood that specific embodiment described herein is only used for explaining the application, rather than to the limit of the application
It is fixed.It also should be noted that illustrating only part relevant to the application for ease of description, in attached drawing and not all knot
Structure.Based on the embodiment in the application, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall in the protection scope of this application.
Term " first ", " second " in the application etc. be for distinguishing different objects, rather than it is specific suitable for describing
Sequence.In addition, term " includes " and " having " and their any deformations, it is intended that cover and non-exclusive include.Such as comprising
The process, method, system, product or equipment of a series of steps or units are not limited to listed step or unit, and
It is optionally further comprising the step of not listing or unit, or optionally further comprising for these process, methods, product or equipment
Intrinsic other step or units.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
It should be noted that pursue narrow frame in portable electronic devices such as such as smart phones or shield instantly comprehensively, lead to
It can often do the best some non-optical elements, i.e., not participate in substantially shining being omitted with the element of the transmission of light, such as will only make
It is removed for the element of individual shade function, it is possible thereby to the space of the element be saved, thus further progress narrow frame or complete
The design of face.Such as in the backlight module of the portable electronic devices such as smart phone, it can will be arranged on light guide plate, and
Shading element positioned at the side of even optical element removes.But the element for removing shade function the problem of will appear light leakage, most
The usage experience of user is influenced eventually.The embodiment of the present application provides the scheme of a kind of backlight module and electronic device to solve above-mentioned ask
Topic, referring specifically to following embodiment provided by the present application:
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of the backlight module of the application first embodiment.In the present embodiment, it carries on the back
Optical mode group includes back frame 11, reflector plate 12, light guide plate 13, even optical element 14, light source 15 and light shield layer 16.
Back frame 11 is the box like structure of one side opening, and back frame 11 includes bottom wall 111 and side wall 112, bottom wall 111 and side wall
112 bending connections, bottom wall 111 and side wall 112 surround accommodating cavity.The material of back frame 11 can be metal, for example, iron, aluminium etc.,
It can be plastic cement.
Reflector plate 12 is set on the bottom wall 111 of back frame 11, and is located inside accommodating cavity.Reflector plate 12 can be by incident light
It is reflected.
Light guide plate 13 is set on reflector plate 12, and is located inside accommodating cavity.Light guide plate 13 includes light inputting end portion 131 and leads
Tabula rasa main part 132, light inputting end portion 131 are provided with incidence surface 133, and light guide plate main body portion 132 is provided with light-emitting surface 134.Enter light
131 thickness of end is greater than the thickness of light guide plate main body 132, and the light inputting end portion 131 is from incidence surface 133 to far from incidence surface 133
Direction thickness be gradually reduced, 132 thickness of light guide plate main body portion is uniform, i.e., thickness is equal everywhere.
Light source 15 is arranged in 131 side of incidence surface, and is arranged on the region that reflector plate 12 is not covered by light guide plate 13.Light
Source 15 can be LED light.
Even optical element 14 is arranged on the light-emitting surface 134 of light guide plate 13, and even optical element 14 is close to one end of incidence surface 132 position
In non-display area 140.
The light that light source 15 issues is incident in the light inputting end portion 131 of light guide plate 13 by the incidence surface 132 of light guide plate 13, is entered
Light end 131 is imported light in light guide plate main body portion 132 using its wedge structure, and light guide plate main body portion 132 guides light time
Even optical element 14 is transferred to behind the entire light guide plate main body portion 132 of cloth, incident light is diffused by even optical element 14, optically focused increases
Output after bright equal processing as backlight module.Wherein, it is partially leaked out from the side of the separate light-emitting surface 134 of light guide plate 132
Light will be reflected back in light guide plate 13 by reflector plate 12.
It should be understood that will be shown in the display area from the light that backlight module exports and form required image.At present
In order to pursue high screen accounting, i.e. widescreen or even the design shielded comprehensively, it will proposed to the design width of non-display area extremely overcritical
Limitation, the design of narrow frame is usually to be not sending to light and transmission is played the element of substantive significance and gone for some
It removes, such as some elements for only playing interception.This just easilys lead to the phenomenon that non-display area generates light leakage.In this regard, this
Light shield layer is provided in embodiment in non-display area to avoid the problem that light leakage.
Specifically, light shield layer 16 is arranged in non-display area 140, and between light guide plate 13 and even optical element 14.
The light issued from light source 15 can be stopped to be leaked to outside in non-display area 140, therefore can be accounted for reducing backlight module
In the case where the width of non-display area, backlight module is avoided light leakage occur.
Light shield layer 16 is the black ink layer formed by silk-screen printing technique.The close of even optical element 14 can be formed in
On the surface of light guide plate 13, it can also be formed on the surface of close even optical element 14 of light guide plate 13.In other embodiments,
Light shield layer 16 can be to be formed by way of spraying.It should be understood that light shield layer 16 can also be formed by other techniques, the application
Embodiment does not limit this.
Please continue to refer to Fig. 1, even optical element 14 includes the diffusion barrier 141 being successively set on light-emitting surface 134, first adds lustre to
Film 142 and the second bright enhancement film 143.Diffusion barrier 141, the first bright enhancement film 142, the second bright enhancement film 143 are relatively independent film
Layer.That is, diffusion barrier 141, the first bright enhancement film 142,143 three of the second bright enhancement film are independently mounted on one after the completion
It rises.Diffusion barrier 141, the first bright enhancement film 142,143 three of the second bright enhancement film shape can be identical, can be square structure, such as Fig. 2
It is shown.Wherein, the cross-sectional view of backlight module when Fig. 1 is the position the A-A cutting for optical element even along Fig. 2, the position A-A warp
Cross light source 15.It can be appreciated that in the present embodiment, if diffusion barrier 141, the first bright enhancement film 142, the second bright enhancement film 143 by
Sectional view is consistent light source 15 everywhere.
First bright enhancement film 142 can be described as lower bright enhancement film, and the second bright enhancement film 143 can be described as bright enhancement film.
Light shield layer 16 is arranged between diffusion barrier 141 and light guide plate 13.More specifically, light shield layer 16 is arranged in diffusion barrier
Between 141 and the light guide plate main body portion 132 of light guide plate 13.
Further, light shield layer 16 may be configured as the black ink layer with alite paste, and one side carries out diffusion barrier 141
It pastes and fixes, light guide plate 13 is carried out stickup fixation by another side.Thus diffusion barrier 141 further can be fixed to light guide plate 13
On.
Backlight module further includes FPC (Flexible Printed Circuit, flexible circuit board) circuit board 17 and FPC solid
Determine adhesive tape 18.FPC circuit board 17 is arranged on light source 15 and is electrically connected with light source 15, and the control signal that outside is provided transmits
To light source 15.Further, FPC circuit board 17 and even optical element 14 interval be arranged, between have a gap a.Preset clearance a
On the one hand for matching rigging error, on the other hand, remain to backlight module normally under a degree of cold and hot deformation
It uses.
FPC fixation adhesive tape 18 is arranged between FPC circuit board 17 and light guide plate 13, and FPC circuit board 17 is fixed on and is led
On tabula rasa 13.Specifically, FPC fixation adhesive tape 18 is the two-sided adhesive tape with bonding agent, surface thereof and FPC circuit board 17 are pasted
Fixed, another surface and light guide plate 13 are pasted and are fixed.In the present embodiment, FPC fixation adhesive tape 18 can also be spaced with even optical element 14
Setting forms the part of gap a.
Further, backlight module further includes shading rubber belt 19, is arranged on FPC circuit board 17, and is arranged and increases second
Light film 143 on the position of non-display area 140.
Shading rubber belt 19 may include the first light shielding part 191 and the second light shielding part 192.First light shielding part 191 is covered in FPC
On circuit board 17, the second light shielding part 192 is covered on the second bright enhancement film 143.The thickness of first light shielding part 191 can be greater than second
The thickness of light shielding part 192.The position positioned at non-display area 140 of second bright enhancement film 143 is carried out shading by the second light shielding part 192,
And a dynamics appropriate is applied to the second bright enhancement film 143, so that diffusion barrier 141, the first bright enhancement film 142 and the second bright enhancement film
143 can be fixed on the light-emitting surface 134 of light guide plate 13.
Further, shading rubber belt 191 is at least set on the side close to the second bright enhancement film 143 of the second light shielding part 192
It is equipped with alite paste, the second bright enhancement film 143 is further fixed by way of stickup.Accept described previously, diffusion barrier 141 is by shading
Layer 16 is fixed on light guide plate 13, therefore the diffusion barrier 141 that is fixed to each other of the first bright enhancement film 142 and the second bright enhancement film 143
It clamps and is fixed.
Further, backlight module further includes center 21 and outline border 22.Outline border 22 is in shading rubber belt 19 and FPC circuit board 17
Side (left side shown in figure) far from the second bright enhancement film 143 is fixed by shading rubber belt 19 and FPC circuit board 17.
Center 21 is located in the accommodating cavity of back frame 11, and side of the light source 15 far from incidence surface 133 is arranged in, is used to support
FPC circuit board 17 and shading rubber belt 19.Outline border 22 is located at outside the accommodating cavity of back frame 11.Metal can be used in center 21 and outline border 22
Material, for example, iron, aluminium etc., or plastic cement.Center 19 can be integrally formed with outline border 21.
Referring to Fig. 3, Fig. 3 is the application first embodiment backlight module light shield layer shading schematic illustration.
As shown in figure 3, light S1 is directly projected and is caused non-aobvious by preset clearance a after the sending of light source 15 originally
Show the light of 140 light leakage of area, can be blocked by light shield layer 16 and go out backlight module without direct projection, avoidable direct projection enters human eye.Shading
The setting of layer 16 is in the direction of the width without occupying individual width spaces, it is thereby possible to reduce backlight module non-display area
Thickness.Wherein, non-display area refers to the region that shading rubber belt 19 covers, and viewing area is the unlapped region of shading rubber belt 19.
In the present embodiment, diffusion barrier 141, the first bright enhancement film 142 and the second bright enhancement film 143 are relatively independent film
Layer, i.e. three are the structure of non-composite film.In other embodiments, diffusion barrier 141, the first bright enhancement film 142 and second are added lustre to
Film 143 may be arranged as the structure of composite membrane, such as the first bright enhancement film 142 and the second bright enhancement film 143 are integrated film layer, one
Film layer and diffusion barrier 141 are relatively independent film layer.Or diffusion barrier 141, the first bright enhancement film 142 and the second bright enhancement film
143 are integrated film layer.
In addition, other positions can also be arranged in light shield layer 16, such as can be set below any one or more
Position: between the side of the close FPC circuit board 17 of even optical element 14, diffusion barrier 141 and the first bright enhancement film 142, first add lustre to
Between film 142 and the second bright enhancement film 143 and between the second bright enhancement film 143 and shading rubber belt 19.
Fig. 4-Fig. 6 is please referred to, Fig. 4 is that the application second embodiment backlight module increases along diffusion barrier shown in fig. 6 and second
The schematic cross-sectional view of the direction the C-C sectility of light film, Fig. 5 are the application second embodiment backlight modules along expansion shown in fig. 6
Dissipate the schematic cross-sectional view of the direction the B-B sectility of film and the second bright enhancement film.Fig. 6 be the application second embodiment diffusion barrier and
The structural schematic diagram of second bright enhancement film.
First as shown in figure 4, in the present embodiment, backlight module still include back frame 41, reflector plate 42, light guide plate 43,
Optical element 44, light source 45, light shield layer 46, FPC circuit board 47, FPC fixation adhesive tape 48, shading rubber belt 49, center 51 and outline border 52.
Wherein, back frame 41, reflector plate 42, light guide plate 43, light source 45, light shield layer 46, FPC circuit board 47, shading rubber belt 49,51 and of center
The structure of outline border 52 respectively with previously described back frame 11, reflector plate 12, light guide plate 13, light source 15, light shield layer 16, FPC circuit
Plate 17, shading rubber belt 19, center 21 and outline border 22 are identical, and details are not described herein.
The FPC fixation adhesive tape 48 of the present embodiment further prolongs from the direction of FPC circuit board 47 to the direction of even optical element 44
It stretches.Only there are gap b between FPC circuit board 47 and even optical element 44 for the present embodiment as a result,.
FPC fixation adhesive tape 48 is led in addition to that can be fixed to FPC circuit board 47 in upper and lower surfaces setting alite paste
Outside tabula rasa 43, black light screening material further can also be set using black light screening material or in upper surface or lower surface to play
The effect of shading.
Specifically, black belt can be used in FPC fixation adhesive tape 48.FPC fixation adhesive tape 48 can also on it surface or under
Black ink is set on surface to play the role of shading.The setting of black ink can with it is previously described identical, herein no longer
It repeats.
The even optical element 44 of the present embodiment includes the diffusion barrier 441, first being successively set on the light-emitting surface of light guide plate 43
Bright enhancement film 442 and the second bright enhancement film 443.Diffusion barrier 441, the first bright enhancement film 442, the second bright enhancement film 443 are relatively independent
Film layer.That is, diffusion barrier 441, the first bright enhancement film 442,443 three of the second bright enhancement film are independently mounted on after the completion
Together.First bright enhancement film 142 can be described as lower bright enhancement film, and the second bright enhancement film 143 can be described as bright enhancement film.
Light shield layer 46 is arranged between diffusion barrier 441 and light guide plate 43.
Referring to Figure 6 together.Diffusion barrier 441 fixes glue to FPC including diffusion 4411 and self-diffusion main body 4411
The diffusion extension 4412 extended with 48 directions.The side of diffusion 4411 connects with FPC fixation adhesive tape 48, as shown in Figure 5.
It spreads extension 4412 to be arranged on FPC fixation adhesive tape 48, as shown in Figure 4.
Spreading extension 4412 includes two, is located at the two sides of diffusion barrier 441.It should be understood that in other embodiments,
The quantity for spreading extension 4412 can also be other, such as one or three etc..
In the two sides of diffusion barrier 44, that is, the position of extension 4412 is spread, the setting of light shield layer 46 is in diffusion extension 4412
Between FPC fixation adhesive tape 48, as shown in Figure 4.Between two sides, i.e., the position of diffusion 4411, the setting of light shield layer 46 exist
Between diffusion 4411 and light guide plate 43, as shown in Figure 5.
Referring to Figure 4 together and Fig. 6, the second bright enhancement film 443 include add lustre to main body 4431 and add lustre to certainly main body 4431 to
The extension 4432 that adds lustre to that 48 direction of FPC fixation adhesive tape extends.First bright enhancement film 442 is arranged on diffusion 4411, adds lustre to
Main body 4431 is arranged on the first bright enhancement film 442, and the extension 4432 that adds lustre to setting is on diffusion extension 4412.Diffusion
4411, the first bright enhancement film 442 and the shape size for main body 4431 of adding lustre to can be identical.
Similarly, the extension 4432 that adds lustre to may also comprise two, be located at the two sides of the second bright enhancement film 443.The present embodiment
In, the location and shape size for the extension 4432 that adds lustre to can be identical with diffusion extension 4412.It should be understood that in other embodiments
In, the quantity of the extension 4432 that adds lustre to can also be other, such as one or three etc..Add lustre to the shape size of extension 4432
It can also be other, details are not described herein.
Described in brought forward, the FPC fixation adhesive tape 48 of the present embodiment can stop from the light direct beam that light source 45 issued to gap b
In, it is leaked out to prevent from gap b.In addition, shading rubber belt 46 can prevent the light of the other positions of non-display area 440
Leakage.
It should be understood that the present embodiment diffusion barrier 441, the first bright enhancement film 442 and the second bright enhancement film 443 can also be compound knot
Structure, specifically as it was noted above, details are not described herein.
Similarly, the light shield layer 46 of the present embodiment also can be set in other positions, specific as it was noted above, no longer superfluous herein
It states.
Fig. 7 and Fig. 8 are please referred to, Fig. 7 is the backlight module of the application 3rd embodiment along the first bright enhancement film shown in Fig. 8
The direction D-D sectility schematic cross-sectional view.
First as shown in fig. 7, in the present embodiment, backlight module still include back frame 71, reflector plate 72, light guide plate 73,
Optical element 74, light source 75, light shield layer 76, FPC circuit board 77, FPC fixation adhesive tape 78, shading rubber belt 79, center 81 and outline border 82.
Wherein, back frame 71, reflector plate 72, light guide plate 73, light source 75, light shield layer 76, FPC circuit board 77, shading rubber belt 79,81 and of center
The structure of outline border 82 respectively with previously described back frame 11, reflector plate 12, light guide plate 13, light source 15, light shield layer 16, FPC circuit
Plate 17, shading rubber belt 19, center 21 and outline border 22 are identical, and details are not described herein.
The FPC fixation adhesive tape 78 of the present embodiment further prolongs from the direction of FPC circuit board 77 to the direction of even optical element 74
It stretches, and connects with the side of diffusion barrier 741.Between the present embodiment only exists between FPC circuit board 77 and even optical element 74 as a result,
Gap c.
FPC fixation adhesive tape 78 is led in addition to that can be fixed to FPC circuit board 77 in upper and lower surfaces setting alite paste
Outside tabula rasa 73, black light screening material further can also be set using black light screening material or in upper surface or lower surface to play
The effect of shading.
Specifically, black belt can be used in FPC fixation adhesive tape 78.FPC fixation adhesive tape 78 can also on it surface or under
Black ink is set on surface to play the role of shading.The setting of black ink can with it is previously described identical, herein no longer
It repeats.
The even optical element 74 of the present embodiment includes the diffusion barrier 741, first being successively set on the light-emitting surface of light guide plate 73
Bright enhancement film 742 and the second bright enhancement film 743.Diffusion barrier 741, the first bright enhancement film 742, the second bright enhancement film 743 are relatively independent
Film layer.That is, diffusion barrier 741, the first bright enhancement film 742,743 three of the second bright enhancement film are independently mounted on after the completion
Together.First bright enhancement film 742 can be described as lower bright enhancement film, and the second bright enhancement film 743 can be described as bright enhancement film.
Light shield layer 76 is arranged between diffusion barrier 741 and light guide plate 73.
Also referring to Fig. 8.First bright enhancement film 742 include add lustre to main body 7421 and main body 7421 of adding lustre to certainly it is solid to FPC
Determine the extension 7422 that adds lustre to of 48 direction of adhesive tape extension.Main body of adding lustre to 7421 is arranged on diffusion barrier 741, and add lustre to extension 7422
It is arranged on FPC fixation adhesive tape 48, the setting of the second bright enhancement film 743 is adding lustre in main body 7421.Diffusion barrier 741, main body of adding lustre to
7422 and second the shape size of bright enhancement film 743 can be identical.
It should be understood that Fig. 7 is that Fig. 8 illustrates along the section of the direction sectility of the extension 7422 that adds lustre to of the first bright enhancement film 742
Figure.If the cross-section structure along the direction sectility of the main body 7421 of adding lustre to of the first bright enhancement film 742 is identical as Fig. 5's, herein no longer
It repeats.
Described in brought forward, the FPC fixation adhesive tape 78 of the present embodiment can stop from the light direct beam that light source 75 issued to gap c
In, it is leaked out to prevent from gap c.In addition, shading rubber belt 76 can prevent the light of the other positions of non-display area
Leakage.
It should be understood that the present embodiment diffusion barrier 741, the first bright enhancement film 742 and the second bright enhancement film 743 can also be compound knot
Structure, specifically as it was noted above, details are not described herein.
Similarly, the light shield layer 76 of the present embodiment also can be set in other positions, specific as it was noted above, no longer superfluous herein
It states.
Referring to Fig. 9, Fig. 9 is the decomposition texture schematic diagram of the embodiment of the present application electronic device.In the present embodiment, electronics
Device 90 can be smart phone, and in other embodiments, electronic device may be tablet computer, palm PC, intelligent hand
Table etc..
In the present embodiment, electronic device 90 includes rear shell 91, center 92, backlight module 93, display module 94 and lid
Plate 95.
Center 92 is fixedly connected with rear shell 91.
Display module 94 is laminated on backlight module 93, and display module 94 and backlight module 93 are both secured to center 92.
Backlight module 93 is used to provide backlight for display module 94.
Display module 94 can be liquid crystal display panel or other display panels.
Cover board 95 lid set in display module 94.Cover board 95 can be transparent glass cover plate, in non-display area, cover board 95
It can be opaque.For example, cover board 95 is coated with black out ink in non-display area.
It should be understood that the other structures of electronic device can be set between rear shell 91 and center 92, for example, circuit board
Deng not illustrating since the application is not related to the improvement to these components herein.
In other embodiments, electronic device 90 can also use other structures, the structure of above-mentioned electronic device 90
Illustrate and the protection scope of non-limiting the application.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of backlight module, which is characterized in that the backlight module includes:
Light guide plate, including incidence surface and light-emitting surface；
Light source is arranged in the incidence surface side；
Even optical element is arranged on the light-emitting surface of the light guide plate, and the even optical element is located at close to one end of the incidence surface
In non-display area；
Light shield layer is arranged in the non-display area, and between the light guide plate and the even optical element.
2. backlight module according to claim 1, which is characterized in that the light shield layer is to be formed by silk-screen printing technique
Black ink layer.
3. backlight module according to claim 1, which is characterized in that the even optical element include be successively set on it is described go out
Diffusion barrier, the first bright enhancement film and the second bright enhancement film in smooth surface, the diffusion barrier, first bright enhancement film, described second increase
Light film is relatively independent film layer, wherein the light shield layer is arranged between the diffusion barrier and the light guide plate.
4. backlight module according to claim 3, which is characterized in that the backlight module further includes that FPC circuit board is fixed with FPC
Adhesive tape, the FPC circuit board are arranged on the light source and are electrically connected with the light source, and the FPC fixation adhesive tape is arranged in institute
It states between FPC circuit board and light guide plate, the FPC circuit board is fixed on the light guide plate.
5. backlight module according to claim 4, the diffusion barrier include diffusion and from the diffusion to
The diffusion extension that FPC fixation adhesive tape direction extends；
The side of the diffusion connects with the FPC fixation adhesive tape, and the diffusion extension setting is in the fixed glue of the FPC
It takes.
6. backlight module according to claim 5, the diffusion extension includes two, is located at the diffusion barrier
Two sides.
7. backlight module according to claim 6, in the two sides of the diffusion barrier, the light shield layer setting diffusion is prolonged
Between extending portion and the FPC fixation adhesive tape, between the two sides, the light shield layer setting is led in the diffusion with described
Between tabula rasa.
8. backlight module according to claim 5, which is characterized in that second bright enhancement film include add lustre to main body and from
The extension that adds lustre to that the main body of adding lustre to extends to FPC fixation adhesive tape direction, first bright enhancement film are arranged in the expansion
It dissipates in main body, the main body of adding lustre to is arranged on first bright enhancement film, and the extension setting that adds lustre to extends in the diffusion
In portion.
9. backlight module according to claim 2, which is characterized in that the backlight module further includes shading rubber belt, described
Shading rubber belt is arranged on second bright enhancement film, for fixing second bright enhancement film.
10. a kind of electronic device, which is characterized in that the electronic device includes backlight described in any one of claim 1-9
Mould group.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106233.8A CN110095835A (en) | 2018-01-31 | 2018-01-31 | A kind of backlight module and electronic device |
| PCT/CN2019/072191 WO2019149083A1 (en) | 2018-01-31 | 2019-01-17 | Backlight module, display assembly and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106233.8A CN110095835A (en) | 2018-01-31 | 2018-01-31 | A kind of backlight module and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110095835A true CN110095835A (en) | 2019-08-06 |
Family
ID=67443532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810106233.8A Pending CN110095835A (en) | 2018-01-31 | 2018-01-31 | A kind of backlight module and electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110095835A (en) |
| WO (1) | WO2019149083A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210211Y (en) * | 2008-06-16 | 2009-03-18 | 亚通光电科技(深圳)有限公司 | Back light module having wedge light conducting structure |
| CN102086993A (en) * | 2009-12-04 | 2011-06-08 | 群康科技(深圳)有限公司 | Backlight module and liquid crystal display device using same |
| CN202955582U (en) * | 2012-12-14 | 2013-05-29 | 厦门天马微电子有限公司 | Backlight module and liquid crystal display device |
| CN203082680U (en) * | 2012-11-30 | 2013-07-24 | 京东方科技集团股份有限公司 | Backlight module and display device using same |
| CN103513451A (en) * | 2012-06-29 | 2014-01-15 | 鑫成科技(成都)有限公司 | Display panel and display device |
| CN103775913A (en) * | 2012-10-18 | 2014-05-07 | 欧姆龙株式会社 | Surface light source device, liquid crystal display device, and mobile device |
| CN204166248U (en) * | 2014-10-08 | 2015-02-18 | 深圳市艾卓尔泰科技开发有限公司 | Lcd liquid crystal display module |
| CN104848088A (en) * | 2015-05-13 | 2015-08-19 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597603B (en) * | 2009-12-28 | 2014-09-03 | 夏普株式会社 | Planar lighting device and display apparatus provided with same |
| WO2013011912A1 (en) * | 2011-07-19 | 2013-01-24 | シャープ株式会社 | Backlight unit and liquid crystal display device |
| CN202361184U (en) * | 2011-11-08 | 2012-08-01 | 深圳市嘉泰宏实业有限公司 | Improved LED (Light-Emitting Diode) backlight source structure |
| CN106842713B (en) * | 2017-04-12 | 2024-04-16 | Oppo广东移动通信有限公司 | Backlight module and electronic device |
| CN108317436B (en) * | 2018-01-31 | 2021-02-09 | Oppo广东移动通信有限公司 | Backlight module and electronic device |
| CN108089256A (en) * | 2018-01-31 | 2018-05-29 | 广东欧珀移动通信有限公司 | Electronic device and its display module, backlight module |
| CN108019668B (en) * | 2018-01-31 | 2021-04-27 | Oppo广东移动通信有限公司 | Backlight module and electronic device |
| CN108254973A (en) * | 2018-01-31 | 2018-07-06 | 广东欧珀移动通信有限公司 | Electronic device and its display module, backlight module |
| CN108319063A (en) * | 2018-01-31 | 2018-07-24 | 广东欧珀移动通信有限公司 | Electronic device and its display module, backlight module |
-
2018
- 2018-01-31 CN CN201810106233.8A patent/CN110095835A/en active Pending
-
2019
- 2019-01-17 WO PCT/CN2019/072191 patent/WO2019149083A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210211Y (en) * | 2008-06-16 | 2009-03-18 | 亚通光电科技(深圳)有限公司 | Back light module having wedge light conducting structure |
| CN102086993A (en) * | 2009-12-04 | 2011-06-08 | 群康科技(深圳)有限公司 | Backlight module and liquid crystal display device using same |
| CN103513451A (en) * | 2012-06-29 | 2014-01-15 | 鑫成科技(成都)有限公司 | Display panel and display device |
| CN103775913A (en) * | 2012-10-18 | 2014-05-07 | 欧姆龙株式会社 | Surface light source device, liquid crystal display device, and mobile device |
| CN203082680U (en) * | 2012-11-30 | 2013-07-24 | 京东方科技集团股份有限公司 | Backlight module and display device using same |
| CN202955582U (en) * | 2012-12-14 | 2013-05-29 | 厦门天马微电子有限公司 | Backlight module and liquid crystal display device |
| CN204166248U (en) * | 2014-10-08 | 2015-02-18 | 深圳市艾卓尔泰科技开发有限公司 | Lcd liquid crystal display module |
| CN104848088A (en) * | 2015-05-13 | 2015-08-19 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019149083A1 (en) | 2019-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108989508B (en) | Display screen assembling method, display screen and electronic equipment | |
| CN109116621A (en) | Display module and display device | |
| CN108317436A (en) | A kind of backlight module and electronic device | |
| CN108710241A (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN108254973A (en) | Electronic device and its display module, backlight module | |
| US10802205B2 (en) | Backlight module, display module and display device | |
| CN103970336A (en) | Touch display panel and touch display device | |
| CN106444121A (en) | Display device | |
| KR102010380B1 (en) | Optical film and display device using the same | |
| CN108319063A (en) | Electronic device and its display module, backlight module | |
| CN108319074A (en) | Electronic device and its display module, backlight module | |
| CN108776413A (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN112817174A (en) | Spliced screen and display device | |
| CN113253516A (en) | Backlight module and display device | |
| CN108287437A (en) | A kind of backlight module and electronic device | |
| KR20140058995A (en) | Liquid crystal display apparatus | |
| CN108150896A (en) | Electronic device and its backlight module | |
| KR101378344B1 (en) | Image display device | |
| CN107153298A (en) | Planar light source device, display device and electronic equipment | |
| CN108302386B (en) | Electronic device, display assembly and backlight module thereof | |
| CN108019668A (en) | A kind of backlight module and electronic device | |
| CN110095900A (en) | A kind of backlight module and electronic device | |
| KR20170026995A (en) | Display device | |
| TWI745738B (en) | Backlight module and display apparatus | |
| KR20130051168A (en) | Liquid crystal panel assembly and image display apparatus having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190806 |
|
| RJ01 | Rejection of invention patent application after publication |