CN108287437A - A kind of backlight module and electronic device - Google Patents
A kind of backlight module and electronic device Download PDFInfo
- Publication number
- CN108287437A CN108287437A CN201810104785.5A CN201810104785A CN108287437A CN 108287437 A CN108287437 A CN 108287437A CN 201810104785 A CN201810104785 A CN 201810104785A CN 108287437 A CN108287437 A CN 108287437A
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- light
- shielding part
- backlight module
- optical element
- light shielding
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
Abstract
A kind of backlight module of the application offer and electronic device.Backlight module includes：Optical element is handled for shining, and to light；Back frame, back frame include bottom wall and side wall, and bottom wall is connected with side wall bending, and bottom wall surrounds accommodating cavity with side wall, and optical element is set in accommodating cavity；Glue frame is arranged in at least side of back frame, including limiting section and light shielding part, wherein, for being limited to optical element, light shielding part extends limiting section from the both ends of limiting section to opposite end, and the light that light shielding part is used to reveal optical element from the both ends of limiting section blocks.It is possible thereby in the case where reducing the width for the non-display area that backlight module occupies, backlight module is avoided the phenomenon that light leakage occur.
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 technology
Currently, with the development of science and technology, the electronic devices such as smart mobile 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 mobile phone is logical at present
Frequently with side entrance back module, i.e., the light that light source is sent out injects light guide plate from light guide plate side, is electricity after light guide plate leaded light
The display panel of sub-device provides backlight, however since the light source of this side entrance back module and some relevant structures need
It is arranged in the side of light guide plate, therefore, occupies larger 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.
Invention content
On the one hand, the embodiment of the present application provides a kind of backlight module, and backlight module includes：Optical element, for shining,
And light is handled；Back frame, back frame include bottom wall and side wall, and bottom wall is connected with side wall bending, and bottom wall surrounds appearance with side wall
Chamber is set, the optical element is set in the accommodating cavity；Glue frame is arranged in at least side of back frame, including limiting section and
Light shielding part, wherein limiting section is for limiting optical element, and light shielding part extends from the both ends of limiting section to opposite end, shading
The light that portion is used to reveal optical element from the both ends of limiting section blocks.
On the other hand, the embodiment of the present application also provides a kind of electronic device, electronic device includes previously described backlight
Module.
The glue frame of the embodiment of the present application includes limiting section and light shielding part, wherein limiting section is used to carry out optical element
Limit, light shielding part extend from the both ends of limiting section to opposite end, what light shielding part was used to reveal optical element from the both ends of limiting section
Light is blocked.It is possible thereby in the case where reducing the width for the non-display area that backlight module occupies, backlight mould is avoided
There is the phenomenon that light leakage in group.
Description of the drawings
Fig. 1 is a kind of main structure diagram of backlight module provided by the embodiments of the present application；
Fig. 2 is cross-sectional view of the backlight module shown in FIG. 1 along the cutting of the directions A-A；
Fig. 3 is partial enlargement structural representation of the backlight module shown in FIG. 1 in the positions M；
Fig. 4 is the structural schematic diagram of the glue frame and back frame cooperation of backlight module shown in FIG. 1；
Fig. 5 is the structural schematic diagram of another backlight module provided by the embodiments of the present application；
Fig. 6 is enlarged structure schematic diagram of the backlight module shown in fig. 5 in P position；
Fig. 7 is the decomposition texture schematic diagram of the embodiment of the present application electronic device.
Specific implementation mode
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 describes.It is understood that specific embodiment described herein is only used for explaining the application, rather than the limit to the application
It is fixed.It also should be noted that illustrating only for ease of description, in attached drawing and the relevant part of the application and not all knot
Structure.Based on the embodiment in the application, those of ordinary skill in the art are obtained without 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 " comprising " and " having " and their any deformations, it is intended that cover and non-exclusive include.Such as comprising
The step of process of series of steps or unit, method, system, product or equipment are not limited to list or unit, and
It further includes the steps that optionally not listing or unit to be, or further includes optionally for these processes, method, product or equipment
Intrinsic other steps or unit.
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 mobile phones or shield comprehensively instantly, it is right
The width of frame proposes extremely harsh requirement, the problem of being thus easy to lead to complete machine edge light leakage.The embodiment of the present application
The scheme of a kind of backlight module and electronic device is provided to solve the above problems, following implemented referring specifically to provided by the present application
Example：
Please refer to Fig.1 and Fig. 2, Fig. 1 be a kind of backlight module provided by the embodiments of the present application main structure diagram, figure
2 be cross-sectional view of the backlight module shown in FIG. 1 along the cutting of the directions A-A.As depicted in figs. 1 and 2, the present embodiment
Backlight module 10 includes back frame 11, optical element 12 and glue frame 13.
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 surround accommodating cavity with side wall 112.The material of back frame 11 can be metal, for example, iron, aluminium etc.,
It can be plastic cement.
Optical element 12 is handled light for shining.Backlight module 10 includes viewing area 100 and non-display area
200, optical element 12 exports after handling light from viewing area 100 for shining.
Optical element 12 includes light source 121, reflector plate 122, light guide plate 123 and even optical element 124.
Reflector plate 122 is set on the bottom wall 111 of back frame 11, and inside accommodating cavity.Reflector plate 122 can be by incidence
Light is reflected.
Light guide plate 123 is set on reflector plate 122, and inside accommodating cavity.Light guide plate 123 includes light inputting end portion 1231
With light guide plate main body portion 1232, light inputting end portion 1231 is provided with incidence surface 1233, and light guide plate main body portion 1232 is provided with light-emitting surface
1234.1231 thickness of light inputting end portion be more than light guide plate main body 1232 thickness, and the light inputting end portion 1231 from incidence surface 1233 to
Direction thickness far from incidence surface 1233 is gradually reduced, and 1232 thickness of light guide plate main body portion is uniform, i.e., thickness is equal everywhere.
Light source 121 is arranged in 1233 side of incidence surface, and is arranged in the region that reflector plate 122 is not covered by light guide plate 123
On.Light source 121 can be LED light.
Even optical element 124 is arranged on the light-emitting surface 1234 of light guide plate 123.
The light that light source 121 is sent out is incident on the light inputting end portion 1231 of light guide plate 123 by the incidence surface 1233 of light guide plate 123
In, light inputting end portion 1231 is imported light in light guide plate main body portion 1232 using its wedge structure, and light guide plate main body portion 1232 draws
Guide-lighting line is transferred to even optical element 124 after spreading all over entire light guide plate main body portion 1232, and even optical element 124 carries out incident light
Output after the processing such as diffusion, optically focused blast as backlight module.Wherein, partly from the separate light-emitting surface 1234 of light guide plate 123
Side leak out light will be reflected back in light guide plate 123 by reflector plate 122.
It should be understood that the light exported from backlight module 10 will be shown in viewing area 100 and form required image.
Currently in order to pursue high screen accounting, i.e., the design that widescreen is even shielded comprehensively, it will propose pole to the design width of non-display area 200
Design for overcritical limitation, narrow frame easilys lead to the phenomenon that non-display area 200 generates light leakage.For example, shown in Fig. 1, the back of the body
Optical mode group 10 be rectangle structure, by backlight module 10 divide for corresponding to its long side Y-direction and corresponding to the side X of its short side
To, wherein X-direction is the orientation of light source 121.Then the design of narrow frame will carry out the frame in X-direction and Y-direction
The phenomenon that limit is arranged, this is easy for causing generating light leakage in the x-direction and the z-direction.It can be such as Fig. 1 when light leakage wherein in X-direction
Shown in light leakage position.For the light leakage in X-direction, light leakage is avoided provided with light shielding part in the present embodiment in glue frame 13
Problem.
Specifically, also referring to Fig. 3 and Fig. 4, Fig. 3 is partial enlargement knot of the backlight module shown in FIG. 1 in the positions M
Structure schematic diagram, Fig. 4 are the structural schematic diagrams of the glue frame and back frame cooperation of backlight module shown in FIG. 1.Glue frame 13 is arranged in back frame
At least side in 11 Y-direction, as shown in Figure 1, the side for being provided with light source 121 in back frame 11 is arranged in glue frame 13.It needs
Illustrate, glue frame 13 can also be further disposed at the side far from light source 121 in back frame 11.Glue frame 13 includes limiting section
131 and light shielding part 132, limiting section 131 and light shielding part 132 be located in non-display area 200.
Limiting section 131 is for limiting optical element 12.Limiting section 131 is arranged in optical element 12 far from viewing area
100 side.Limiting section 131 includes anterior spacing main body 1311 and limit side wall 1312, and limit side wall 1312 is arranged in anterior spacing main body
1311 both ends, and extend from anterior spacing main body 1311 to the direction of optical element 12.As shown in figure 4, limit side wall 1312 is specific
Extend to be tilted from anterior spacing main body 1311 to the direction of optical element 12.And the direction that two limit side walls 1312 extend is just
On the contrary, two limit side walls 1312 are equal with the angle of anterior spacing main body 1311, obtuse angle is formed with anterior spacing main body 1311.
Anterior spacing main body 1311 is for limiting light source 121.Specifically, light source 121 is multiple, as shown in Figure 1.Limit
Main body 1311 includes multiple spaced limited blocks 1313, and light source 121 is arranged between two adjacent limited blocks 1313.It answers
Understand, it is contemplated that the rigging error and light source 121 of light source 121 are in a degree of cold and hot deformation, two adjacent limited blocks
Width between 1313 should be greater than the width of light source 121.
Limit side wall 1312 is for limiting light guide plate 123 and even optical element 124.It further, can also be to reflection
Piece 122 is limited.As shown in Fig. 2, light source 121 is opposite with light guide plate 123 and is arranged in parallel, the setting of even optical element 124 is being led
On tabula rasa 123, therefore, even optical element 14 is facing light sources 12 and protrudes.The application is in order to preferably to light guide plate 123 and even light
Element 124 is positioned, and the thickness that limit side wall 1312 is arranged is more than the thickness of anterior spacing main body 1311 so that limit side wall 1312
It is flushed with the surface of even optical element 124, or more slightly convex than the surface of even optical element 124.
Similarly, it is contemplated that rigging error and at work a degree of cold and hot deformation, limit side wall 1312 and leaded light
A gap b can be reserved between plate 123 and even optical element 124, as shown in Figure 3.
In the design of narrow frame, light guide plate 123 is with even optical element 124 close to the light of the side leakage of limit side wall 1312
Line will be leaked along gap b.Further, the light source 121 close to limit side wall 1312 can also be generated to limit side wall
The light and reflector plate 122 of 1312 transmittings are reflected back the light of light guide plate 123, and reflection direction may also comprise to limit side wall
1312 direction.To generate the light leakage in X-direction.
The application is provided with light shielding part 132 for above-mentioned light leakage phenomena.
Light shielding part 132 is arranged in side of the limiting section 131 far from optical element 12, and light shielding part 132 is used for optical element
11 light revealed from the both ends of limiting section 131 are blocked.Specifically, light shielding part 132 is from the both ends of limiting section 131 to opposite end
Extend, as shown in Figure 1.Specifically, light shielding part 132 from the intersection of its close limit side wall 1312 and anterior spacing main body 1311 to
The direction of another limit side wall 1312 extends.And extending direction is identical as the extending direction of anterior spacing main body 1311, i.e. shading
Portion 132 is arranged in parallel with anterior spacing main body 1311, i.e., light shielding part 132 is arranged with limit side wall 1312 at obtuse angle.Similarly, it is contemplated that dress
With error and a degree of cold and hot deformation at work, barn door 132 and light source 121, light guide plate 123 and even optical element
A gap c can be reserved between 124 etc., as shown in Figure 3.Gap b and gap c are communicated, and the light thus leaked into the b of gap will edge
It gap b and is transferred in the c of gap.Since light shielding part 132 is arranged in side of the limiting section 131 far from optical element 12, and
It is arranged in parallel with anterior spacing main body 1311, is arranged at obtuse angle with limit side wall 1312, therefore, light shielding part 132 will change from limiting side
The light path for the light that wall 1312 leaks out, changed into it is parallel with anterior spacing main body 1311, stop its from limit side wall 1312 leak.
The light parallel with anterior spacing main body 1311 will finally be covered by the display panel on backlight module.The thickness of light shielding part 132 can be more than
The thickness of limiting section 131 can more particularly be more than the thickness of limit side wall 1312.Thus it can be formed relative to limiting section 131
One boss structure.The thickness of light shielding part 132 can also be equal to the thickness of limit side wall 1312.
Further, light absorbent can be further set on the side wall of light shielding part 132, to absorb the light of leakage.It inhales
Luminescent material can be black ink, can be formed, can also be formed by the technique of silk-screen printing by the technique of spraying.
Be described above prevents the light leakage phenomena of backlight module in the X direction by the way that light shielding part 132 is arranged.It will be situated between below
Continue prevents the light leakage phenomena of backlight module 10 in the Y direction by the way that light shield layer is arranged.
Referring again to Fig. 2, backlight module 10 further includes flexible PCB 17 and connection adhesive tape 18.Light source 121 and flexible electrical
Road plate 17 is electrically connected.Connection light source 121 on flexible PCB 17 and externally fed pin, to power for light source 121.
Flexible PCB 17 is not connect by the region that even optical element 124 covers by connecting adhesive tape 18 with light guide plate 123.Even
It can be double faced adhesive tape to connect adhesive tape 18.The one side of double faced adhesive tape is bonded with the lower surface of 17 corresponding position of flexible PCB, another
Face is bonded with the upper surface of 123 corresponding position of light guide plate.
There is preset clearance a between flexible PCB 17 and connection adhesive tape 18 and even optical element 124.Preset clearance a mono-
On the other hand aspect, makes backlight module remain to normally make for matching rigging error under a degree of cold and hot deformation
With.
Light shield layer is arranged with connecting on the end face of adhesive tape 18 in the close flexible PCB 17 of even optical element 124 in the application
14, for stopping the light leaked from gap a.
Fig. 5 and Fig. 6 are please referred to, Fig. 5 is the structural schematic diagram of another backlight module provided by the embodiments of the present application, Fig. 6
It is enlarged structure schematic diagram of the backlight module shown in fig. 5 in P position.The backlight module 50 of the present embodiment and embodiment above
Difference lies in light shielding part 532 and the 531 not parallel settings of limiting section of the backlight module 50 of the present embodiment for backlight module 10.
Specifically, limiting section 531 is for limiting optical element 52.Limiting section 531 is arranged in optical element 52
Side far from viewing area 100.Limiting section 531 includes anterior spacing main body 5311 and limit side wall 5312, and limit side wall 5312 is arranged
Extend at the both ends of anterior spacing main body 5311, and from anterior spacing main body 5311 to the direction of optical element 12.As shown in fig. 6, limiting side
Wall 5312 is specially to tilt to extend from anterior spacing main body 5311 to the direction of optical element 52.And two limit side walls 5312 extend
Direction just on the contrary, two limit side walls 5312 it is equal with the angle of anterior spacing main body 5311, with anterior spacing main body 5311 formed
Obtuse angle.
Anterior spacing main body 5311 is for limiting light source 521.The structure specifically limited is as it was noted above, no longer superfluous herein
It states.
Limit side wall 5312 is for limiting light guide plate and even optical element.Further, reflector plate can also be carried out
Limit.As it was noted above, light source is opposite with light guide plate and is arranged in parallel, even optical element is arranged on light guide plate, therefore, even light member
Part is facing light sources and protrudes.The application is in order to preferably position light guide plate and even optical element, setting limit side wall
5312 thickness is more than the thickness of anterior spacing main body 5311 so that limit side wall 5312 is flushed with the surface of even optical element, or than even
The surface of optical element is slightly convex.
Similarly, it is contemplated that rigging error and at work a degree of cold and hot deformation, limit side wall 5312 and leaded light
A gap d can be reserved between plate and even optical element, as shown in Figure 6.
In the design of narrow frame, light guide plate will close to the light of the side leakage of limit side wall 5312 with even optical element
It is leaked along gap d.Further, the light source close to limit side wall 5312 can also be generated to the limit transmitting of side wall 5312
Light and reflector plate are reflected back the light of light guide plate, and reflection direction may also comprise the direction to limit side wall 5312.To generate
Light leakage in X-direction as shown in Figure 1.
The application is provided with light shielding part 532 for above-mentioned light leakage phenomena.
Light shielding part 532 is arranged in side of the limiting section 531 far from optical element 52, and light shielding part 532 is used for optical element
52 light revealed from the both ends of limiting section 531 are blocked.Specifically, light shielding part 532 is from the both ends of limiting section 531 to opposite end
Extend, as shown in Figure 5.Specifically, light shielding part 532 from the intersection of its close limit side wall 5312 and anterior spacing main body 5311 to
The direction of another limit side wall 5312 extends.And extending direction and the extending direction of anterior spacing main body 5311 differ.Such as Fig. 6
Shown, light shielding part 532 includes the first sub- light shielding part 5321 and the second sub- light shielding part 5322.First sub- light shielding part 5321 is close from its
The intersection of limit side wall 5312 and anterior spacing main body 5311 extend to the direction far from anterior spacing main body 5311, the second sub- light shielding part
5322 extend from first one end of sub- light shielding part 5321 far from anterior spacing main body 5311 to the direction of anterior spacing main body 5311.To be formed
The structure of one similar V-shape.Gap e is formed between the V words structure and anterior spacing main body 5311.Gap d and gap e are communicated, by
This light leaked into gap d will be transferred in the e of gap along gap d.Since light shielding part 532 is arranged in limiting section 531
Side far from optical element 52, and the structure of a similar V-shape is formed, the first sub- light shielding part 5321 can be with limit side wall
5312 is parallel, and the second sub- light shielding part 5322 and the first sub- light shielding part 5321 are arranged at obtuse angle or acute angle.Therefore, light shielding part 532 will
The light path for changing the light leaked out from limit side wall 5312, is changed into the direction to anterior spacing main body 5311, stops it from limit
Position side wall 5312 leaks.It will finally be covered to the light in the direction of anterior spacing main body 5311 by the display panel on backlight module.Shading
The thickness in portion 532 can be more than the thickness of limiting section 531, can more particularly be more than the thickness of limit side wall 5312.It thus can phase
One boss structure is formed for limiting section 531.The thickness of light shielding part 132 can also be equal to the thickness of limit side wall 1312.
Referring to Fig. 7, Fig. 7 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 mobile 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
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 provided between rear shell 91 and center 92, for example, circuit board
Deng since the application is not related to the improvement to these components, not illustrating herein.
In other embodiments, electronic device 90 can also use other structures, the structure of above-mentioned electronic device 90
Illustrate and the protection domain of non-limiting the application.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the claims of the application, every 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 includes similarly 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：
Optical element is handled for shining, and to light；
Back frame, back frame include bottom wall and side wall, and bottom wall is connected with side wall bending, and bottom wall surrounds accommodating cavity, the optics with side wall
Element is set in the accommodating cavity；
Glue frame is arranged in at least side of the back frame, including limiting section and light shielding part, wherein the limiting section for pair
The optical element is limited, and the light shielding part extends from the both ends of the limiting section to opposite end, the light shielding part for pair
The light that the optical element is revealed from the both ends of the limiting section is blocked.
2. backlight module according to claim 1, which is characterized in that
The backlight module includes viewing area and non-display area, the optical element for shining, and to the light at
It is exported from the viewing area after reason；
The limiting section and light shielding part are located in the non-display area, and the limiting section is arranged in the optical element far from institute
State the side of viewing area；
Light shielding part is arranged in side of the limiting section far from the optical element, and the thickness of the light shielding part is more than described
The thickness of limiting section.
3. backlight module according to claim 2, which is characterized in that the limiting section includes anterior spacing main body and limiting side
Wall, the limit side wall are arranged at the both ends of the anterior spacing main body, and from the anterior spacing main body to the direction of the optical element
Extend；
The light shielding part is from the intersection of its close described limit side wall and the anterior spacing main body to another limit side wall
Direction extends.
4. backlight module according to claim 3, which is characterized in that the light shielding part is parallel with the anterior spacing main body to be set
It sets.
5. backlight module according to claim 3, which is characterized in that the light shielding part includes the first sub- light shielding part and second
Sub- light shielding part, the first sub- light shielding part is from the intersection of its close described limit side wall and the anterior spacing main body to far from institute
The direction for stating anterior spacing main body extends, and the second sub- light shielding part is from described first one end of sub- light shielding part far from the anterior spacing main body
Extend to the direction of the anterior spacing main body.
6. backlight module according to claim 3, which is characterized in that the optical element include light guide plate, light source and
Even optical element, wherein：
Light guide plate, including incidence surface and light-emitting surface；
Light source is arranged in the side of the incidence surface；
Even optical element is arranged on the light-emitting surface of the light guide plate；
For being limited to the light source, the limit side wall is used for the light guide plate and the even light anterior spacing main body
Element is limited.
7. backlight module according to claim 6, which is characterized in that the light source is multiple, and anterior spacing main body includes multiple
Spaced limited block, the light source are arranged between two adjacent limited blocks.
8. backlight module according to claim 3, which is characterized in that the thickness of the limit side wall is led more than the limit
The thickness of body.
9. backlight module according to claim 1, which is characterized in that further setting is inhaled on the side wall of the light shielding part
Luminescent material, to absorb the light of leakage.
10. a kind of electronic device, which is characterized in that the electronic device includes backlight described in any one of claim 1-9
Module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810104785.5A CN108287437A (en) | 2018-01-31 | 2018-01-31 | A kind of backlight module and electronic device |
| PCT/CN2019/072189 WO2019149082A1 (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 |
|---|---|---|---|
| CN201810104785.5A CN108287437A (en) | 2018-01-31 | 2018-01-31 | A kind of backlight module and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108287437A true CN108287437A (en) | 2018-07-17 |
Family
ID=62836388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810104785.5A Pending CN108287437A (en) | 2018-01-31 | 2018-01-31 | A kind of backlight module and electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108287437A (en) |
| WO (1) | WO2019149082A1 (en) |
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Also Published As
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| WO2019149082A1 (en) | 2019-08-08 |
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