CN110007521A - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
- Publication number
- CN110007521A CN110007521A CN201910364304.9A CN201910364304A CN110007521A CN 110007521 A CN110007521 A CN 110007521A CN 201910364304 A CN201910364304 A CN 201910364304A CN 110007521 A CN110007521 A CN 110007521A
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- Prior art keywords
- functional layer
- optical functional
- buffer structure
- backlight module
- hole
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Classifications
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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
- G02F1/133308—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
- G02F1/1336—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
- G02F1/133314—Back frames
Abstract
The embodiment of the invention discloses a kind of backlight module and display devices.The backlight module includes: metal frame and the optical functional layer that is oppositely arranged with the metal frame；The optical functional layer includes the first through hole for running through the optical functional layer along the thickness direction of the optical functional layer, and the metal frame includes main part and the bending part that is connected with the main part；The optical functional layer is set to the side of the main part, and the bending part extends in the first through hole；Buffer structure is provided between the optical functional layer and the bending part.The embodiment of the present invention realizes the risk for reducing through hole optical functional layer fragmentation.
Description
Technical field
The present embodiments relate to display technology more particularly to a kind of backlight module and display devices.
Background technique
With the development of display technology, people require the screen accounting of the display devices such as mobile phone higher and higher.
The prior art proposes the design of some special-shaped display panels, for example, continuing with mobile phone in screen direction comprehensively
Development occurs one kind in the prior art and digs through hole in backlight module, and places the technical side of the elements such as camera in through hole
Case.But after digging through hole, in through hole, the optical film layer of backlight module is easy to appear fragmentation.Therefore, it reduces in through hole optics
The fragmentation risk of diaphragm, the technical issues of becoming this field urgent need to resolve.
Summary of the invention
The present invention provides a kind of backlight module and display device, to realize the wind for reducing through hole optical functional layer fragmentation
Danger.
In a first aspect, the embodiment of the invention provides a kind of backlight modules, comprising:
Metal frame and the optical functional layer being oppositely arranged with the metal frame；
The optical functional layer includes the thickness direction along the optical functional layer through the first of the optical functional layer
Through-hole, the metal frame include main part and the bending part that is connected with the main part；The optical functional layer is set to institute
The side of main part is stated, the bending part extends in the first through hole；Between the optical functional layer and the bending part
It is provided with buffer structure.
Second aspect, the embodiment of the invention also provides a kind of display device, including display component and the present invention it is any
Backlight module described in embodiment；
The display component is set to side of the optical functional layer far from main part of the backlight module.
The embodiment of the present invention falls test by the way that buffer structure is arranged between optical functional layer and bending part, fall
When, the optical functional layers such as light guide plate 20 are directly contacted with buffer structure 30, and buffer structure can be to optical functional layers such as light guide plates
Play the role of stress buffer, avoid fall fall test when optical functional layer 20 directly contacted with bending part 12, to avoid light
Learn functional layer rupture.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of backlight module provided in this embodiment；
Fig. 2 is the schematic diagram of another backlight module provided in this embodiment；
Fig. 3 is a kind of schematic top plan view of backlight module provided in an embodiment of the present invention；
The schematic top plan view of Fig. 4 another backlight module provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of another backlight module provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram of another backlight module provided in an embodiment of the present invention；
Fig. 7 is the schematic top plan view of another backlight module provided in an embodiment of the present invention；
Fig. 8 is a kind of schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
A kind of backlight module is present embodiments provided, Fig. 1 is a kind of schematic diagram of backlight module provided in this embodiment, ginseng
Fig. 1 is examined, which includes:
Metal frame 10 and the optical functional layer 20 being oppositely arranged with metal frame 10；
Optical functional layer 20 includes the first through hole 21 for running through optical functional layer 20 along the thickness direction of optical functional layer 20,
Metal frame 10 includes main part 11 and the bending part 12 being connected with main part 11；Optical functional layer 20 is set to main part 11
Side, bending part 12 extend in first through hole 21；Buffer structure 30 is provided between optical functional layer 20 and bending part 12.
Wherein, metal frame 10 can be iron frame, and metal frame 10 is for positioning optical functional layer 20.First through hole 21
For placing the optical sensors such as camera, light sensor and iris recognition sensor.Buffer structure 30 is with certain
The structure of elasticity and cushion performance.Due to linear expansion rate difference, dimensional tolerance and the assembling of each film layer of optical functional layer 20
The influence of the factors such as tolerance, each film layer in assembling of optical functional layer 20 are easy to appear dislocation, lead to some film layers and bending part
12 directly contact or are closer, and since the optical film layers material such as light guide plate is crisp, and thickness is thin, cause fall when falling test
Easily rupture.
The present embodiment falls test fall by the way that buffer structure 30 is arranged between optical functional layer 20 and bending part 12
When, the optical functional layers such as light guide plate 20 are directly contacted with buffer structure 30, and buffer structure 30 can be to optical functions such as light guide plates
Layer 20 plays the role of stress buffer, avoid fall fall test when, optical functional layer 20 is directly contacted with bending part 12, to keep away
Exempt from the rupture of optical functional layer 20.
It should be noted that buffer structure 30 can be formed on metal frame 10 by techniques such as coatings, it can also be direct
It is fitted on metal frame 10 by techniques such as fittings.
Fig. 2 is the schematic diagram of another backlight module provided in this embodiment, optionally, with reference to Fig. 1 and Fig. 2, buffering knot
Structure 30 is located at main part 11 and is located at bending part 12 by dipped beam close to the surface (Fig. 1) of optical functional layer 20 or buffer structure 30
Learn the surface (Fig. 2) of functional layer 20.
Specifically, and optical functional layer 20 is put since main part 11 close to the surface of optical functional layer 20 is horizontal surface
It is placed in the surface, which has preferable flatness, therefore when buffer structure 30 is set to the surface, according to fitting work
Skill can preferably carry out fitting positioning, and according to coating process, the preferable surface of flatness advantageously reduces coating process
Difficulty.
In addition, with reference to Fig. 2, the non-display area of the corresponding display panel in region between bending part 12 and optical functional layer 20,
When buffer structure 30 is set to surface of the bending part 12 close to optical functional layer 20, between bending part 12 and optical functional layer 20
Distance be only equal to the sum of thickness and the distance between buffer structure 30 and optical functional layer 20 of buffer structure 30, work as buffering
When the thickness and the distance between buffer structure 30 and optical functional layer 20 of structure 30 are fixed, the present embodiment is tied relative to buffering
Apertured scheme is stayed between structure 30 and bending part 12, is conducive to reduce the region between bending part 12 and optical functional layer 20
Size is conducive to the screen accounting for improving display panel to be conducive to reduce the size of the non-display area around first through hole 21.
Fig. 3 is a kind of schematic top plan view of backlight module provided in an embodiment of the present invention, and Fig. 4 is provided in an embodiment of the present invention
The schematic top plan view of another backlight module.Optionally, with reference to Fig. 3, first through hole 21 is around buffer structure 30, buffer structure 30
Around bending part 12, alternatively, first through hole 21 half is around buffer structure 30, and 30 semi-ring of buffer structure is around bending part with reference to Fig. 4
12。
Wherein, with reference to Fig. 3, when first through hole 21 is around buffer structure 30, when buffer structure 30 is around bending part 12, first
Through-hole 21 is located at the non-edge of optical functional layer.With reference to Fig. 4, when first through hole 21 half is around buffer structure 30, buffering knot
When 30 semi-ring of structure is around bending part 12, first through hole 21 is presented as notch section as shown in Figure 2, which can regard as backlight mould
What the edge of group was recessed to middle section.
It should be noted that Fig. 3 and Fig. 4 merely exemplary shape for showing first through hole 21 and position, not to this
The restriction of invention, in other embodiments, first through hole 21 can be arranged according to actual needs on backlight module it is any its
The shape of his position, first through hole 21 can also be rectangle, round rectangle, U-shaped or polygon etc..
Optionally, with reference to Fig. 4, along the direction for surrounding bending part 12, buffer structure 30 includes multiple sub- buffer structures 31, or
Person, with reference to Fig. 3, along the direction for surrounding bending part 12, buffer structure 30 is continuous structure.
Wherein, multiple sub- buffer structures 31 can be the same or different along the size around 12 direction of bending part, buffer
The number of the sub- buffer structure 31 for including of structure 30, which can according to need, to be set, and the present embodiment is simultaneously not specifically limited,
It illustratively, can be as shown in figure 4, three sub- buffer structures 31 of setting, also can be set two or three above son buffering knots
Structure 31.
Specifically, multiple sons can be used when buffer structure 30 is formed in metal frame 10 by the way of directly fitting
The form of buffer structure 31 can be not easy since the size of each sub- buffer structure 31 is smaller to avoid oversized when being bonded
Contraposition improves Anawgy accuracy.When buffer structure 30 is formed directly into metal frame 10 using coating process, buffer structure 30 can be with
Using continuous structure, coating primary in this way can form entire buffer structure 30, reduce processing step.
Optionally, with reference to Fig. 2, buffer structure 30 includes the first surface 301 and second surface 302 being oppositely arranged, and first
Surface 301 and bending part 12 are opposite；The direction of first through hole 21, second surface 302 and the first table are directed toward along optical functional layer 20
The distance between face 301 is first distance D；Optical functional layer 20 is directed toward along the thickness direction of backlight module, and along main part 11
Direction on X, first distance D gradually becomes smaller.
Specifically, the thermal expansion character due to the optical diaphragms such as light guide plate and brightening piece in optical functional layer 20 is different,
By being arranged along the direction X that main part 11 is directed toward optical functional layer 20, first distance D is gradually become smaller, and can preferably be applicable in
Different optical diaphragms change in size as caused by thermal expansion, preferably buffers the stress that optical diaphragm is subject to.
Fig. 5 is the schematic diagram of another backlight module provided in an embodiment of the present invention, optionally, referring to figs. 2 and 5, is delayed
It is trapezoidal or step that structure 30, which is rushed, perpendicular to the cross sectional shape of main part 11.
Specifically, the concrete shape of buffer structure 30 can be determined according to the specific size variation range of each optical film layer,
Illustratively, when adjacent film layer dimensional change differential is larger, the cutting perpendicular to main part 11 of buffer structure 30 can be set
Face shape be it is step-like, to adapt to biggish change in size, the number of step can be according to the biggish film layer of dimensional change differential
Number setting, a step can be illustratively set as shown in Figure 5.By by buffer structure 30 perpendicular to main part 11
Cross sectional shape is set as step, can preferably adapt to the change in size of different optical film layers, and work as optical functional layer 20
Each optical film layer when being misplaced due to extraneous power, step surface can play preferably positioning and buffering work to optical film layer
With, preferably avoid optical film layer occur fragmentation.
In addition, buffer structure 30 can be set perpendicular to main part 11 when adjacent film layers dimensional change differential is smaller
Cross sectional shape be it is trapezoidal, the tilt angle on the surface of trapezoidal adjacent optical functional layer 20 can be according to the size changing amount of each film layer
Setting.Specifically, there is no stress dead angles etc., by that will buffer knot since the global shape transition of trapezium structure is than more gentle
Structure 30 is set as trapezoidal perpendicular to the cross sectional shape of main part 11, so that buffer structure 30 bears the ability of the stress of all directions
Preferably, can effectively mention avoid repeatedly falling fall test so that buffer structure 30 due to stress concentration crack, Promoting Layered Buffer knot
The service life of structure 30.
Optionally, the maximum value of first distance D is less than or equal to 0.5mm；
The minimum value of first distance D is less than or equal to 0.35mm, and is greater than 0.
Specifically, the non-display area of the corresponding display panel in region between bending part 12 and optical functional layer 20, if along light
The direction that functional layer 20 is directed toward first through hole 21 is learned, the size in the space between bending part 12 and optical functional layer 20 is too big, no
Conducive to the non-display area for reducing display panel, the maximum value by the way that first distance D is arranged is less than or equal to 0.5mm, so that buffering
Size of the structure 30 on the direction that optical functional layer 20 is directed toward first through hole 21 is smaller, bending part 12 and optical functional layer 20 it
Between spacing, thus be conducive to reduce display panel non-display area, promote the screen accounting of display panel.
In addition, corresponding to size in optical functional layer 20 at the minimum dimension of first distance D increases maximum film layer, when first
When the maximum value of distance D is less than or equal to 0.5mm, if the minimum value of first distance D is excessive, in order to enable there is enough surpluses to accommodate
Size increases the change in size of maximum film layer, needs to increase the mounting distance between buffer structure 30 and optical functional layer 20,
It is unfavorable for reducing the size of non-display area.Minimum value by the way that first distance D is arranged is less than or equal to 0.35mm, and is greater than 0,
Guarantee that buffer structure 30 carries out stress buffer to optical functional layer 20 and guarantees between buffer structure 30 and optical functional layer 20
While change in size biggish with enough distance receiving optical film layers, be conducive to the non-display area for reducing display panel,
Promote the screen accounting of display panel.
Optionally, second surface 302 and first surface 301 are directed toward the of the direction of first through hole 21 along optical functional layer 20
One distance D is the thickness of buffer structure 30, and along the thickness direction of buffer structure 30, the thickness compression ratio of buffer structure 30 is 30%
~50%.
Specifically, thickness compression ratio is the ratio of thickness minimum value and maximum thickness.Since optical functional layer 20 is swollen
When swollen, optical film layer becomes large-sized along the direction of the direction first through hole 21 of optical functional layer 20, passes through and buffer structure 30 is arranged
Direction thickness compression ratio be 30%~50%, buffer structure 30 preferably delays optical functional layer 20
While punching, the portion size variation of optical functional layer 20 can be born, so that in backlight module assembling, optical functional layer 20
Preset clearance between buffer structure 30 can be set smaller, to be conducive to reduce the ruler of display panel non-display area
It is very little.
Optionally, the material of buffer structure 30 is foam, silica gel or rubber.
Specifically, since foam, silica gel or rubber have preferable cushion performance, and price is lower, is guaranteeing buffering knot
While the cushion performance of structure 30, the cost of display panel is advantageously reduced.It should be noted that the present embodiment is merely exemplary
The material of buffer structure 30 is shown, not limitation of the invention, buffer structure 30 can also be adopted in other embodiments
With other materials with cushion performance.
Optionally, Fig. 6 is the schematic diagram of another backlight module provided in an embodiment of the present invention, with reference to Fig. 6, optical function
Reflector plate 201, light guide plate 202, diffusion sheet 203 and the brightening piece 204 that layer 20 is cascading, reflector plate 201 are set to
Light guide plate 202 is adjacent to the side of main part 11；
Light guide plate 202 is directly contacted with buffer structure 30.
Wherein, brightening piece 204 may include upper brightening piece and lower brightening piece.Specifically, since light guide plate 202 is relative to anti-
The thermal expansion coefficient for penetrating piece 201, diffusion sheet 203 and brightening piece 204 is smaller, its size increases smaller in use, delays
Rush structure 30 thickness compression ratio be able to satisfy 202 change in size of light guide plate needed for space, pass through setting light guide plate 202 and buffering
Structure 30 directly contacts, so that the spacing between optical functional layer 20 and bending part 12 is smaller, it is non-to be conducive to reduction display panel
The size of display area is conducive to the screen accounting for promoting display panel.
Fig. 7 is the schematic top plan view of another backlight module provided in an embodiment of the present invention, optionally, with reference to Fig. 7, backlight
Mould group further includes side entering type light source 40；The light-emitting surface of side entering type light source 40 intersects with the light-emitting surface of optical functional layer 20；
Buffer structure 30 includes first part 32 and second part 33, and the distance of first part 32 to side entering type light source 40 is small
The distance of side entering type light source 40 is arrived in second part 33；
Second part 33 is the light reflectivity that light reflectivity is greater than first part 32.
Specifically, blocking due to first through hole 21 in the prior art, so that first through hole 21 is far from side incident light source 40
Side light luminance it is darker, display when show that picture is darker relative to other regions, that is, there is shadow.Pass through setting the
The light reflectivity of two parts 33 is greater than the light reflectivity of first part 32, so that first through hole 21 is far from 40 side of side entering type light source
Buffer structure 30 can reflect more light, to improve light of the first through hole 21 far from 40 1 side region of side entering type light source
Line brightness improves shadow phenomenon to promote the brightness that the region shows picture.
Illustratively, the color of first part 32 can be black, and the color of second part 33 can be white or grey
Deng.The specific color of second part 33 can determine that the present embodiment is simultaneously not specifically limited according to the bright-dark degree of shadow.Specifically
, when shadow degree is more serious, that is, when showing that the partially dark degree of picture is stronger, what the light reflectivity of second part 33 can be set
It is bigger.Such as, when shadow degree is more serious, second part 33 can be set as white, when shadow is lighter, can be set second
Part 33 is grey.
Optionally, first part 32 is greater than or equal to second part 33 around bending part 12 around the length of bending part 12
Length.In this way, guarantee second part 33 only the region to first through hole 21 far from 40 side of side entering type light source brightness rise
To humidification, avoids the excessive brightness to other regions of second part 33 from playing humidification, cause the brightness in other regions
It crosses bright, influences image display quality.
Specifically, the specific length of first part 32 and second part 33 can be determined according to the area size of shadow, this
Embodiment is simultaneously not specifically limited.
It should be noted that first part 32 is around the length of bending part 12 and the when buffer structure 30 is annular
Two parts 33 are the arc length of first part 32 and the arc length of second part 33 around bending part 12, when buffer structure 30 is more
When the shape of side, first part 32 surrounds the as first part 32 of bending part 12 around the length and second part 33 of bending part 12
Perimeter and second part 33 perimeter.
Optionally, with reference to Fig. 6, along the thickness direction of backlight module, the height of buffer structure 30 is greater than or equal to bending part
12 height, and it is greater than or equal to the thickness of optical functional layer 20.
Specifically, when the height of bending part 12 is higher, being easy to appear deformation due to the thinner thickness of metal frame 10, passing through
The height that buffer structure 30 is arranged is greater than or equal to the height of bending part 12, and is greater than or equal to the thickness of optical functional layer 20,
Buffer structure 30 is allowed to play preferable buffering and positioning action to optical functional layer 20.
Optionally, with reference to Fig. 6, backlight module further include:
Light shield layer 50, light shield layer 50 covers surface of the buffer structure 30 far from main part 11, and extends to optical functional layer
20 first area, wherein first area is neighbouring buffer structure 30 in surface of the optical functional layer 20 far from main part 11
Region.
Specifically, by setting light shield layer 50 display panel picture can be influenced to avoid backlight module in non-display area light leakage
Face shows quality, and avoids backlight module light leakage at first through hole 21, influences the performance of the optical sensors such as camera.
The present embodiment additionally provides a kind of display device, and Fig. 8 is a kind of showing for display device provided in an embodiment of the present invention
It is intended to, with reference to Fig. 8, which includes display component 100 and the backlight module 200 that any embodiment of that present invention provides；
Display component 100 is set to the optical functional layer 20 of backlight module 200 far from the side of main part 11.
Display device provided in this embodiment, by being arranged between the optical functional layer and bending part of backlight module 200
Buffer structure, fall fall test when, the optical functional layers such as light guide plate 20 are directly contacted with buffer structure 30, and buffer structure can
To play the role of stress buffer to optical functional layers such as light guide plates, avoid fall fall test when optical functional layer 20 directly with it is curved
Folding part 12 contacts, so that optical functional layer be avoided to rupture.
Optionally, display component 100 includes second through-hole 101 corresponding with first through hole 21.In this way, guaranteeing camera shooting
The optical function module that head, light sensor and iris recognition sensor etc. are set at first through hole 21 can be obtained preferably
Take optical imagery etc..
In addition, display component 100 can also be entire, i.e., it is not provided in display component 100 corresponding with first through hole 21
Through-hole, in this way, guarantee the structural strength with higher of display component 100, and reduce display component 100 preparation process
Difficulty reduces cost of manufacture.
Optionally, display component 100 includes display panel 110 and polaroid 120.
Wherein, display panel 100 may include array substrate, color membrane substrates and be set to array substrate and color membrane substrates
Between liquid crystal layer.
Optionally, with reference to Fig. 8, display device further include:
Cover board 300；Cover board 300 is set to side of the display component 100 far from backlight module 200.
Wherein it is possible to through-hole be arranged in the position corresponding with first through hole 21 of cover board 300, to guarantee camera, light
Sensor and iris recognition sensor etc., which are set to the optical function module at first through hole 21, can preferably obtain optics
Image etc..Further, it is also possible to retain position corresponding with first through hole 21 cover board 300, protection is played to optical function module and is made
With.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (16)
1. a kind of backlight module characterized by comprising
Metal frame and the optical functional layer being oppositely arranged with the metal frame；
The optical functional layer includes the first through hole for running through the optical functional layer along the thickness direction of the optical functional layer,
The metal frame includes main part and the bending part that is connected with the main part；The optical functional layer is set to the main body
The side in portion, the bending part extend in the first through hole；It is provided between the optical functional layer and the bending part
Buffer structure.
2. backlight module according to claim 1, it is characterised in that:
The buffer structure is located at the main part close to the surface of the optical functional layer or the buffer structure positioned at curved
Folding part is close to the surface of optical functional layer.
3. backlight module according to claim 1, it is characterised in that:
The first through hole is around the buffer structure, and the buffer structure is around the bending part, alternatively, the first through hole
Half around the buffer structure, and the buffer structure half is around the bending part.
4. backlight module according to claim 1, it is characterised in that:
Along the direction for surrounding the bending part, the buffer structure includes multiple sub- buffer structures, alternatively, along the bending is surrounded
The direction in portion, the buffer structure are continuous structure.
5. backlight module according to claim 1, it is characterised in that:
The buffer structure includes the first surface and second surface being oppositely arranged, the first surface and the bending part phase
It is right；The direction of the first through hole is directed toward along the optical functional layer, between the second surface and the first surface away from
From for first distance；Along the thickness direction of the backlight module, and it is directed toward along the main part direction of the optical functional layer
On, the first distance gradually becomes smaller.
6. backlight module according to claim 5, it is characterised in that:
The buffer structure is trapezoidal or step perpendicular to the cross sectional shape of the main part.
7. backlight module according to claim 5, it is characterised in that:
The maximum value of the first distance is less than or equal to 0.5mm；
The minimum value of the first distance is less than or equal to 0.35mm, and is greater than 0.
8. backlight module according to claim 1, it is characterised in that:
The second surface and the first surface along the optical functional layer be directed toward the first through hole direction first away from
From the thickness for the buffer structure, along the thickness direction of the buffer structure, the thickness compression ratio of the buffer structure is
30%~50%.
9. backlight module according to claim 8, it is characterised in that:
The material of the buffer structure is foam, silica gel or rubber.
10. backlight module according to claim 8, it is characterised in that:
Reflector plate, light guide plate, diffusion sheet and the brightening piece that the optical functional layer is cascading, the reflector plate setting
In the light guide plate adjacent to the side of the main part；
The light guide plate is directly contacted with the buffer structure.
11. backlight module according to claim 1, it is characterised in that:
The backlight module further includes side entering type light source；The light-emitting surface of the side entering type light source and the light out of the optical functional layer
Face intersection；
The buffer structure includes first part and second part, and the distance of the first part to the side entering type light source is less than
Distance of the second part to the side entering type light source；
The second part is the light reflectivity that light reflectivity is greater than the first part.
12. backlight module according to claim 11, it is characterised in that:
The first part is greater than or equal to the length that the second part surrounds the bending part around the length of the bending part
Degree.
13. backlight module according to claim 1, it is characterised in that:
Along the thickness direction of the backlight module, the height of the buffer structure is greater than or equal to the height of the bending part, and
More than or equal to the thickness of the optical functional layer.
14. backlight module according to claim 1, which is characterized in that further include:
Light shield layer, the light shield layer cover surface of the buffer structure far from the main part, and extend to the optics function
The first area of ergosphere, wherein the first area is institute neighbouring in surface of the optical functional layer far from the main part
State the region of buffer structure.
15. a kind of display device, which is characterized in that including display component and the described in any item backlight moulds of claim 1-14
Group；
The display component is set to side of the optical functional layer far from main part of the backlight module.
16. display device according to claim 15, it is characterised in that:
The display component includes the second through-hole corresponding with the first through hole.
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| CN201910364304.9A CN110007521A (en) | 2019-04-30 | 2019-04-30 | A kind of backlight module and display device |
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| CN201910364304.9A CN110007521A (en) | 2019-04-30 | 2019-04-30 | A kind of backlight module and display device |
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| CN201910364304.9A Pending CN110007521A (en) | 2019-04-30 | 2019-04-30 | A kind of backlight module and display device |
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| CN113031346A (en) * | 2021-03-26 | 2021-06-25 | 武汉华星光电技术有限公司 | Backlight module and display method of display equipment |
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