CN109613754A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN109613754A CN109613754A CN201811626247.9A CN201811626247A CN109613754A CN 109613754 A CN109613754 A CN 109613754A CN 201811626247 A CN201811626247 A CN 201811626247A CN 109613754 A CN109613754 A CN 109613754A
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- China
- Prior art keywords
- light
- backlight module
- guide plate
- light guide
- compensatory
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- 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.)
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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
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The invention discloses a kind of backlight module and display devices, comprising: side entering type light source, light guide plate, compensatory light；Light guide plate includes incidence surface and light-emitting surface；Side entering type light source is located at the side of incidence surface；Light guide plate further includes first side and second side, and second side includes an at least cross-talk side, and sub- side forms sunk structure to light guide plate inner recess, and light guide plate further includes first area, and first area is located at side of the sunk structure far from side entering type light source；Compensatory light is located at the side that first side deviates from light-emitting surface, and the light-emitting surface of compensatory light is the first light-emitting surface, and the first light-emitting surface is towards first area.By increasing compensatory light, the darker situation in the first area as caused by sunk structure is avoided or reduced, the brightness of first area is compensated, so that the uniform in light emission of entire backlight module, improves the homogeneity that backlight module goes out light.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of backlight module and display device.
Background technique
A kind of existing display device is by display panel and is arranged at the display panel back side and provides brightness for display panel
Backlight module composition.Direction with display device towards slimming, narrow frame is developed, and therefore, the display of small-medium size fills
Set the backing structure that (such as smart phone, tablet computer) generallys use single-sided illumination, i.e. side entrance back module.
Side entrance back module includes side-edge type backlight, the light guide plate positioned at side-edge type backlight light emission side, Yi Jidui
The optical diaphragm of folded setting, is converted to area source for linear light source, provides uniform area source for display panel.And present people couple
It is higher and higher in the multi-functional demand of display device, more and more additional configuration electronic building bricks of display devices needs, such as with
Camera, earpiece etc. are set, in this case, it is necessary to which opening or borehole are for placing these electronics groups on the display apparatus
Part.After opening or borehole place electronic building brick on the display apparatus, issued since electronic building brick has obstructed side entering type light source
Light therefore will appear dark space apart from the farther away side of side entering type light source in opening or borehole, so as to cause display device
Brightness disproportionation one.
Summary of the invention
In view of this, the present invention provides a kind of backlight modules, comprising: side entering type light source, light guide plate, compensatory light；It leads
Tabula rasa includes incidence surface and light-emitting surface；Plane intersection where plane where incidence surface and light-emitting surface；Side entering type light source is located at into light
The side in face；Light guide plate further includes first side and second side, and first side is oppositely arranged with light-emitting surface, second side and the
One side, light-emitting surface and incidence surface intersect；Second side includes an at least cross-talk side, and sub- side is to light guide plate inner-concave
It falls into and forms sunk structure, light guide plate further includes first area, and first area is located at side of the sunk structure far from side entering type light source；
Compensatory light is located at the side that first side deviates from light-emitting surface, and the light-emitting surface of compensatory light is the first light-emitting surface, the first light-emitting surface
Towards first area.
The present invention also provides a kind of display devices, including backlight module provided by the invention.
Compared with prior art, backlight module provided by the invention and display device at least realize following beneficial effect
Fruit:
Using backlight module provided by the invention, by the first light-emitting surface court for increasing compensatory light and compensatory light
To the mode of first area, in the case where not changing backlight module other assemblies, when side entering type light source igniting, compensatory light
It can light together, to avoid or reduce the darker situation in the first area as caused by sunk structure, compensate the firstth area
The brightness in domain improves going out for backlight module so that the uniform in light emission of entire backlight module, improves the homogeneity that backlight module goes out light
Optical property promotes the light-out effect of backlight module.
Certainly, implementing any of the products of the present invention specific needs while need not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is a kind of planar structure schematic diagram for display device that the prior art provides；
Fig. 2 is a kind of planar structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 3 is a kind of the schematic diagram of the section structure of the backlight module along hatching XX ' of Fig. 2 offer；
Fig. 4 is the planar structure schematic diagram of another backlight module provided in an embodiment of the present invention；
Fig. 5 is another the schematic diagram of the section structure of the backlight module along hatching YY ' of Fig. 4 offer；
Fig. 6 is the planar structure schematic diagram of another backlight module provided in an embodiment of the present invention；
Fig. 7 is a kind of the schematic diagram of the section structure of the backlight module along hatching ZZ ' of Fig. 6 offer；
Fig. 8 is another the schematic diagram of the section structure of the backlight module along hatching ZZ ' of Fig. 6 offer；
Fig. 9 is another the schematic diagram of the section structure of backlight module along hatching ZZ ' of Fig. 6 offer；
Figure 10 is another the schematic diagram of the section structure of backlight module along hatching ZZ ' of Fig. 6 offer；
Figure 11 is another the schematic diagram of the section structure of backlight module along hatching ZZ ' of Fig. 6 offer；
Figure 12 is another the schematic diagram of the section structure of backlight module along hatching ZZ ' of Fig. 6 offer；
Figure 13 is another the schematic diagram of the section structure of backlight module along hatching ZZ ' of Fig. 6 offer；
Figure 14 is another the schematic diagram of the section structure of backlight module along hatching ZZ ' of Fig. 6 offer；
Figure 15 is a kind of planar structure schematic diagram of display device provided in an embodiment of the present invention；
Figure 16 is a kind of the schematic diagram of the section structure of display device provided in an embodiment of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
In order to promote the homogeneity of display device brightness, inventor has carried out as follows display device in the prior art
Research:
Referring to Figure 1, Fig. 1 is a kind of planar structure schematic diagram for display device that the prior art provides.As shown in Figure 1,
Display device includes backlight module 01, and backlight module 01 includes light source 03 and edge Y11, and part edge Y11 is to backlight module 01
Recess forms sunk area 02.When the light L that light source 03 issues is propagated in light guide plate, since sunk area 02 has blocked portion
The propagation of light splitter L, so that there are dark space DD for sunk area 02.In dark space DD, the light L that can be reached is less, therefore,
The brightness in other regions of the brightness ratio of dark space DD is low, so that the display to display device impacts, reduces display device
Quality.
In view of the above technical problems, the invention proposes a kind of backlight module and display devices, about provided by the invention
The embodiment of backlight module and display device, it is described in detail below.
Fig. 2-Fig. 3 is referred to, Fig. 2 is a kind of planar structure schematic diagram of backlight module provided in an embodiment of the present invention, Fig. 3
It is a kind of the schematic diagram of the section structure of the backlight module along hatching XX ' of Fig. 2 offer.As Figure 2-3, the embodiment of the present invention mentions
For a kind of backlight module 100, comprising: side entering type light source 1, light guide plate 2, compensatory light 3；The light including incidence surface R and out of light guide plate 2
Face C；Plane where incidence surface R and the plane intersection of the place light-emitting surface C；Side entering type light source 1 is located at the side of incidence surface R；Light guide plate 2
It further include first side 21 and second side 22, first side 21 is oppositely arranged with light-emitting surface C, second side 22 and first side
21, light-emitting surface C and incidence surface R intersect；Second side 22 includes an at least cross-talk side 220, and sub- side 220 is to light guide plate
2 inner recess form sunk structure Q, and light guide plate 2 further includes first area D1, and first area D1 is located at sunk structure Q far from side
Enter the side of formula light source 1；Compensatory light 3 is located at the side that first side 21 deviates from light-emitting surface C, and the light-emitting surface of compensatory light 3 is
First light-emitting surface 30, the first light-emitting surface 30 is towards first area D1.
Optionally, continuing with referring to Fig. 3, which lights simultaneously with side-edge type backlight 1.
Specifically, as Figure 2-3, light guide plate 2 includes sunk structure Q, first area D1 is located at sunk structure Q far from side
Enter the side of formula light source 1, therefore the light that side entering type light source 1 issues can not shine directly into first area D1, if be not provided with
Compensatory light 3, then the brightness of first area D1 can be than darker, in order to avoid there is such case, backlight provided in this embodiment
Compensatory light 3 is provided in mould group 100,3 first light-emitting surface 30 of compensatory light is issued towards first area D1, i.e. compensatory light 3
Light L can be irradiated to first area D1, to improve the brightness of first area D1.
It is understood that the light guide plate 2 in Fig. 2, which is not provided with, to be filled out for the technical solution of clear signal the present embodiment
It fills.
Using backlight module provided in this embodiment, by the first light-emitting surface for increasing compensatory light and compensatory light
Towards the mode of first area, in the case where not changing backlight module other assemblies, when side entering type light source igniting, light is compensated
Source can light together, so that the darker situation in the first area as caused by sunk structure is avoided or reduces, compensation first
The brightness in region, so that the uniform in light emission of entire backlight module, improves the homogeneity that backlight module goes out light, improve backlight module
Optical property out promotes the light-out effect of backlight module.
Optionally, Fig. 4-Fig. 5 is referred to, Fig. 4 is the planar structure of another backlight module provided in an embodiment of the present invention
Schematic diagram, Fig. 5 are another the schematic diagram of the section structure of the backlight module along hatching YY ' of Fig. 4 offer.As shown in fig. 4-5,
Backlight module 100 further includes reflecting element 4, and reflecting element 4 and sub- side 220 are least partially overlapped, and along perpendicular to backlight mould
On the direction of group 100, reflecting element 4 and compensatory light 3 are least partially overlapped, and reflecting element 4 includes reflecting surface 40, reflecting surface 40
Towards the first light-emitting surface 30 of compensatory light 3.
Specifically, as shown in fig. 4-5, on the direction perpendicular to backlight module 100, the reflecting surface 40 of reflecting element 4
It is oppositely arranged with the first light-emitting surface 30 of compensatory light 3, so that the reflecting surface 40 of reflecting element 4 can be by the light of compensatory light 3
Line L is reflected into first area D1.
In backlight module provided in this embodiment, the light that compensatory light issues can be reflected by the reflecting element of setting
The first area of light guide plate can not only light first area, and the light by reflecting element reflection is more evenly, light
Utilization rate is higher；Again due to for the light that compensatory light issues is capable of the region of direct irradiation, reflecting element reflection
It is bigger that luminous energy gets at the region reached, therefore, can further increase the brightness of first area, so that entire backlight module goes out light
More evenly, the light-out effect of backlight module is promoted.
Optionally, Fig. 6-Fig. 7 is referred to, Fig. 6 is the planar structure of another backlight module provided in an embodiment of the present invention
Schematic diagram, Fig. 7 are a kind of the schematic diagram of the section structure of the backlight module along hatching ZZ ' of Fig. 6 offer.As shown in fig. 6-7, backlight
Mould group 100 includes glue frame 5 and iron frame 6, and glue frame 5 is mutually chimeric with iron frame 6, and iron frame 6 is located at compensatory light 3 close to the one of light guide plate 2
Side；In the region sunk structure Q, reflecting element 4 is between light guide plate 2 and glue frame 5；Iron frame 6 includes hollow-out parts K, along vertical
Directly on the direction of backlight module 100, hollow-out parts K and compensatory light 3 are least partially overlapped.
Specifically, as shown in fig. 6-7, compensatory light 3 is located at side of the iron frame 6 far from light guide plate 2, there is hollow out on iron frame 6
Portion K, so that compensatory light 3 issue light L can pass through reflecting element 4 from iron frame 6.Optionally, hollow-out parts K and benefit
It is completely overlapped along the direction perpendicular to backlight module 100 to repay light source 3.
In backlight module provided in this embodiment, the light that a hollow-out parts and compensatory light are arranged on iron frame can be worn
It crosses the hollow-out parts and reaches reflecting element, light is reflected into first area again by reflecting element, so as to promote first area
Brightness, so that the light in entire backlight module is more evenly distributed.
Optionally, Fig. 8 is referred to, Fig. 8 is that the backlight module that Fig. 6 is provided shows along another cross-section structure of hatching ZZ '
It is intended to.As shown in figure 8, backlight module 100 further includes reflectance coating 7 and diffusion barrier 8, reflectance coating 7 is located at light guide plate 2 close to iron frame 6
Side, diffusion barrier 8 be located at light guide plate 2 deviate from iron frame 6 side；The sub- side 220 and first in the part Chong Die with reflecting element 4
Side 21, light-emitting surface C connect, and the extending direction F1 of sub- side 220 intersects with the extending direction F2 of glue frame 5；Reflecting element 4
Between reflectance coating 7 and diffusion barrier 8, and the angle theta between the reflecting surface 40 and first side 21 of reflecting element 4 is less than 90 °.
Specifically, light guide plate 2 is far from iron frame 6 as shown in figure 8, light guide plate 2 is equipped with reflectance coating 7 close to the side of iron frame 6
Side is equipped with diffusion barrier 8, the extending direction F1 of reflecting element 4 intersects with first side 21, i.e. the sub- side 220 of light guide plate 2
Extending direction F1 is not perpendicular to first side 21, but there are angle theta and angle theta is acute angle between first side 21.Instead
It penetrates element 4 and is bonded the sub- setting of side 220, is i.e. the reflecting surface 40 of reflecting element 4 and the angle of first side 21 is angle theta.Instead
The one end for penetrating element 4 is flushed with the first side 21 of light guide plate 2, and the other end of reflecting element 4 and the light-emitting surface C of light guide plate 2 are neat
It is flat.
In backlight module provided in this embodiment, there are angle and folders between the reflecting surface and first side of reflecting element
Angle is acute angle, the light of more compensatory lights can be reflected into first area, increase the brightness of first area；Reflecting element
Both ends flushed respectively with the light-emitting surface of the first side of light guide plate, light guide plate, avoid reflecting element beyond 21 He of first side
Light is reflected into except light guide plate 2 by the part of light-emitting surface C, reduces the loss of light, improves the utilization rate of light, to improve
The brightness of first area.
It is understood that when the angle between the reflecting surface 40 and first side 21 of reflecting element 4 is right angle or blunt
When angle, since compensatory light 3 is located remotely from the side of iron frame, when the light L of compensatory light 3 is irradiated from the side far from iron frame
When, reflecting element 4 can not reflect light L, and light L can be emitted from the sub- side 220 of light guide plate 2, thus can not be effective
Improve the brightness of first area D1.
Optionally, Fig. 9 is referred to, Fig. 9 is that the backlight module that Fig. 6 is provided shows along another cross-section structure of hatching ZZ '
It is intended to.As shown in figure 9, backlight module 100 further includes reflectance coating 7 and diffusion barrier 8, reflectance coating 7 is located at iron frame 6 close to light guide plate 2
Side, diffusion barrier 8 be located at light guide plate 2 deviate from iron frame 6 side；The extending direction F1 of sub- side 220 and the extension side of glue frame 5
It is identical to F2；Reflecting element 4 includes the first reflecting part 41 interconnected and the second reflecting part 42, and the first reflecting part 41, which is located at, to be expanded
Scattered film 8 is close to the side of light guide plate 2 and the reflecting surface of the first reflecting part 41 is towards iron frame 6, and the first reflecting part 41 and iron frame 6 are flat
Row setting, the second reflecting part 42 is disposed adjacent with glue frame 5 and the reflecting surface of the second reflecting part 42 is reflected towards light guide plate 2, second
Portion 42 is arranged in parallel with glue frame 5.
Specifically, as shown in figure 9, between light guide plate 2 and glue frame 5 be equipped with the first reflecting part 41 and the second reflecting part 42,
The light L that compensatory light 3 issues reflexes to the first reflecting part 41 through the second reflecting part 42, then reflexes to the through the first reflecting part 41
One region D1, to light first area D1, eliminate dark space, so that the light in entire backlight module is more evenly distributed.
Optionally, referring to Figure 10, Figure 10 be Fig. 6 provide backlight module along hatching ZZ ' another cross-section structure
Schematic diagram.As shown in Figure 10, backlight module 100 further includes light-strip 9, light guide plate 2, light-strip 9, the second reflecting part 42, glue frame 5
It successively arranges along first direction X1, light-strip 9 is located at the first reflecting part 41 towards the side of iron frame 6；Along perpendicular to backlight module
Direction on, light-strip 9 and hollow-out parts K are least partially overlapped.
Specifically, as shown in Figure 10, edge is parallel on the first direction X1 of backlight module 100, it is anti-in light guide plate 2 and second
It penetrates and is equipped with light-strip 9 between portion 42.The light L that compensatory light 3 issues is in irregular diffusion in the inside of light-strip 9, then is passed through
First area D1 is reached after crossing the first reflecting part 41 and the reflection of the second reflecting part 42, so that the light of reflection is more uniform.It is optional
, light-strip 9 can using added in the Substrate basis such as PMMA (polymethyl methacrylate), PC (polycarbonate) it is inorganic or
Organic light diffusing agent or by the artificial adjustment light of array arrangement of the micro-feature structure of substrate surface, occur that light not
Equidirectional refraction, reflection realize that incident light sufficiently dissipates color and generates optics with this to change the travelling route of light with scattering
The material of diffusion.It should be noted that the present embodiment only schematically illustrates light-strip by taking PMMA, PC as an example, the present invention
Light-strip is specifically not specifically limited by which kind of substrate production.
In backlight module provided in this embodiment, in the space that the first reflecting part, the second reflecting part and light guide plate are formed
It has been embedded light-strip, the light that compensatory light issues can not only have been reflexed to first area, and by light-strip reflection
Light more evenly, the utilization rate of light it is also higher, so that the brightness of first area is more evenly, improve the light point in backlight module
The homogeneity of cloth.
Optionally, referring to Figure 11, Figure 11 be Fig. 6 provide backlight module along hatching ZZ ' another cross-section structure
Schematic diagram.As shown in figure 11, compensatory light 3 is fixed to iron frame 6 by adhesive tape 10.Optionally, compensatory light 3 includes pedestal 31,
Pedestal 31 can not only be used to fixed compensation light source 3, but also the circuit of compensatory light 3 can design on pedestal 31, after being convenient for
Continuous to be electrically connected with other electronic building bricks, the side of adhesive tape 10 is pasted to pedestal 31, the other side of adhesive tape 10 is pasted to iron frame
6。
In backlight module provided in this embodiment, compensatory light is fixed on iron frame by adhesive tape, and simple process is feasible, keeps away
Exempt from the case where appearance causes light that can not accurately be reflected into first area due to compensatory light dislocation.
Optionally, referring to Figure 12, Figure 12 be Fig. 6 provide backlight module along hatching ZZ ' another cross-section structure
Schematic diagram.As shown in figure 12, backlight module 100 includes main flexible circuit board 12 and auxiliary flexible circuit board 11, compensatory light 3 with it is auxiliary
Flexible circuit board 11 is electrically connected, and auxiliary flexible circuit board 11 is electrically connected with main flexible circuit board 12.Optionally, auxiliary flexible circuit board 11
Substrate, i.e., auxiliary flexible circuit board 11 and main flexible circuit board 12 are made using flexible material resistant to bending with main flexible circuit board 12
It can bend, crimp or stretch, it can be in order to auxiliary flexible circuit board 11 and main flexible circuit board 12 be electrically connected.It can
Choosing, compensatory light 3 includes pedestal 31, and the side of adhesive tape 10 is pasted to pedestal 31, the other side of adhesive tape 10 is pasted to iron frame 6,
Pedestal 31 is welded on auxiliary flexible circuit board 11.
In backlight module provided in this embodiment, backlight module includes main flexible circuit board and auxiliary flexible circuit board, compensation
Light source is electrically connected by auxiliary flexible circuit board with main flexible circuit board, can reduce the area of main flexible circuit board, improves backlight
The space utilization rate of mould group.
Optionally, referring to Figure 13, Figure 13 be Fig. 6 provide backlight module along hatching ZZ ' another cross-section structure
Schematic diagram.As shown in figure 13, backlight module 100 includes auxiliary flexible circuit board 11 and circuit main board 13, compensatory light 3 and auxiliary flexibility
Circuit board 11 is electrically connected, and auxiliary flexible circuit board 11 is soldered to circuit main board 13.Optionally, auxiliary flexible circuit board 11 uses flexible resistance to
It bends material and makes substrate, i.e., auxiliary flexible circuit board 11 can bend, crimps or stretch, can be in order to by auxiliary flexible circuit board
11 are electrically connected with circuit main board 13.Optionally, compensatory light 3 include pedestal 31, the side of adhesive tape 10 be pasted to pedestal 31,
The other side of adhesive tape 10 is pasted to iron frame 6, and pedestal 31 is directly welded on auxiliary flexible circuit board 11.
In backlight module provided in this embodiment, backlight module includes auxiliary flexible circuit board and circuit main board, compensatory light
It is directly welded with circuit main board by auxiliary flexible circuit board, technique is simpler, and directly and circuit by auxiliary flexible circuit board
Mainboard welding can reduce foreign matter and enter circuit main board by compensatory light position, have preferable leakproofness.
Optionally, referring to Figure 14, Figure 14 be Fig. 6 provide backlight module along hatching ZZ ' another cross-section structure
Schematic diagram.As shown in figure 14, backlight module 100 includes circuit main board 13, and compensatory light 3 is welded on circuit main board 13.It is optional
, circuit main board 13 makes substrate using hard material, has certain rigidity, can provide stable branch for compensatory light 3
Support.Optionally, compensatory light 3 includes pedestal 31, and the side of adhesive tape 10 is pasted to pedestal 31, the other side of adhesive tape 10 is pasted to iron
Frame 6, pedestal 31 are directly welded on circuit main board 13.
In backlight module provided in this embodiment, compensatory light is directly welded on circuit main board, and technique is simpler, favorably
In the producing efficiency for improving backlight module, the cost of manufacture of backlight module is reduced.
5- Figure 16 referring to Figure 1, Figure 15 are a kind of planar structure schematic diagrams of display device provided in an embodiment of the present invention,
Figure 16 is a kind of the schematic diagram of the section structure of display device provided in an embodiment of the present invention.The present invention also provides a kind of display dresses
It sets, including backlight module provided by the invention 100, further includes the display panel 200 being oppositely arranged with backlight module 100.Specifically
, as shown in figures 15-16, display device 1000 provided in an embodiment of the present invention includes 100 He of backlight module provided by the invention
Display panel 200, display panel 200 are oppositely arranged with backlight module 100, the shape of display panel 200 and the shape of backlight module
Shape is identical, also includes sunk structure.Optionally, display device 200 further includes camera 300, and camera 300 is located at sunk structure
It is interior.Optionally, display panel 200 can be liquid crystal display panel.It is understood that display dress provided in an embodiment of the present invention
It sets, can be other display devices having a display function such as mobile phone, wrist-watch, computer, TV, display device for mounting on vehicle, the present invention
This is not specifically limited.Display device provided in an embodiment of the present invention, with backlight module provided in an embodiment of the present invention
Beneficial effect can specifically refer to the various embodiments described above illustrating for backlight module, and details are not described herein for the present embodiment.
Through the foregoing embodiment it is found that backlight module provided by the invention and display device, at least realizing following has
Beneficial effect:
Using backlight module provided by the invention, by the first light-emitting surface court for increasing compensatory light and compensatory light
To the mode of first area, in the case where not changing backlight module other assemblies, when side entering type light source igniting, compensatory light
It can light together, to avoid or reduce the darker situation in the first area as caused by sunk structure, compensate the firstth area
The brightness in domain improves going out for backlight module so that the uniform in light emission of entire backlight module, improves the homogeneity that backlight module goes out light
Optical property promotes the light-out effect of backlight module.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (11)
1. a kind of backlight module characterized by comprising
Side entering type light source, light guide plate, compensatory light；
The light guide plate includes incidence surface and light-emitting surface；Plane intersection where plane where the incidence surface and the light-emitting surface；
The side entering type light source is located at the side of the incidence surface；The light guide plate further includes first side and second side, and described
One side is oppositely arranged with the light-emitting surface, the second side and the first side, the light-emitting surface and it is described enter light
Intersect in face；
The second side includes an at least cross-talk side, and the sub- side forms recess knot to the light guide plate inner recess
Structure, the light guide plate further include first area, and the first area is located at the sunk structure far from the side entering type light source
Side；
The compensatory light is located at the side that the first side deviates from the light-emitting surface, and the light-emitting surface of the compensatory light is the
One light-emitting surface, first light-emitting surface is towards the first area.
2. backlight module according to claim 1, which is characterized in that
The backlight module further includes reflecting element, and the reflecting element and the sub- side are least partially overlapped, and along vertical
In on the direction of the backlight module, the reflecting element and the compensatory light are least partially overlapped, the reflecting element packet
Include reflecting surface, first light-emitting surface of the reflecting surface towards the compensatory light.
3. backlight module according to claim 2, which is characterized in that
The backlight module includes glue frame and iron frame, and the glue frame is mutually chimeric with the iron frame, and the iron frame is located at the compensation
Light source is close to the side of the light guide plate；In the sunk structure region, the reflecting element be located at the light guide plate with
Between the glue frame；
The iron frame includes hollow-out parts, along perpendicular on the direction of the backlight module, the hollow-out parts and the compensatory light
It is least partially overlapped.
4. backlight module according to claim 3, which is characterized in that
The backlight module further includes reflectance coating and diffusion barrier, and the reflectance coating is located at the light guide plate close to the one of the iron frame
Side, the diffusion barrier are located at the side that the light guide plate deviates from the iron frame；
The part Chong Die with the reflecting element side connects with the first side, the light-emitting surface, and described
The extending direction of sub- side intersects with the extending direction of the glue frame；The reflecting element is located at the reflectance coating and the diffusion
Between film, and the angle between the reflecting surface and the first side of the reflecting element is less than 90 °.
5. backlight module according to claim 3, which is characterized in that
The backlight module further includes reflectance coating and diffusion barrier, and the reflectance coating is located at the iron frame close to the one of the light guide plate
Side, the diffusion barrier are located at the side that the light guide plate deviates from the iron frame；
The extending direction of the sub- side is identical as the extending direction of the glue frame；The reflecting element includes interconnected
One reflecting part and the second reflecting part, first reflecting part are located at the diffusion barrier close to the side of the light guide plate and described
The reflecting surface of first reflecting part is arranged in parallel towards the iron frame, first reflecting part with the iron frame, and described second
Reflecting part is disposed adjacent with the glue frame and the reflecting surface of second reflecting part is towards the light guide plate, and described second
Reflecting part is arranged in parallel with the glue frame.
6. backlight module according to claim 5, which is characterized in that
The backlight module further includes light-strip, the light guide plate, the light-strip, second reflecting part, the glue frame edge
First direction is successively arranged, and the light-strip is located at first reflecting part towards the side of the iron frame；Along perpendicular to described
On the direction of backlight module, the light-strip and the hollow-out parts are least partially overlapped.
7. backlight module according to claim 3, which is characterized in that
The compensatory light is fixed to the iron frame by adhesive tape.
8. backlight module according to claim 1, which is characterized in that
The backlight module includes main flexible circuit board and auxiliary flexible circuit board, the compensatory light and the auxiliary flexible circuit board
Electrical connection, the auxiliary flexible circuit board are electrically connected with the main flexible circuit board.
9. backlight module according to claim 1, which is characterized in that
The backlight module includes auxiliary flexible circuit board and circuit main board, and the compensatory light is electrically connected with the auxiliary flexible circuit board
It connects, the auxiliary flexible circuit board is soldered to the circuit main board.
10. backlight module according to claim 1, which is characterized in that
The backlight module includes circuit main board, and the compensatory light is welded on the circuit main board.
11. a kind of display device, which is characterized in that including backlight module such as of any of claims 1-10, also wrap
Include the display panel being oppositely arranged with the backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811626247.9A CN109613754A (en) | 2018-12-28 | 2018-12-28 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811626247.9A CN109613754A (en) | 2018-12-28 | 2018-12-28 | Backlight module and display device |
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| Publication Number | Publication Date |
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| CN109613754A true CN109613754A (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811626247.9A Pending CN109613754A (en) | 2018-12-28 | 2018-12-28 | Backlight module and display device |
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| Country | Link |
|---|---|
| CN (1) | CN109613754A (en) |
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Application publication date: 20190412 |