CN108803145A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN108803145A CN108803145A CN201810713350.0A CN201810713350A CN108803145A CN 108803145 A CN108803145 A CN 108803145A CN 201810713350 A CN201810713350 A CN 201810713350A CN 108803145 A CN108803145 A CN 108803145A
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- China
- Prior art keywords
- guide
- lighting
- guide plate
- light guide
- backlight module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
Abstract
The invention discloses a kind of backlight module and display devices, are related to display technology field, including：Light guide plate and side entering type light source；Light guide plate includes hollow-out parts, opposite first side and second side, and hollow-out parts run through light guide plate along the thickness direction of light guide plate；First side is the incident side of light guide plate；Region between hollow-out parts and second side is the firstth area；Light guide plate includes a plurality of first guide-lighting slot, and the first guide-lighting slot extends from the outer edge of light guide plate towards hollow-out parts, and the first guide-lighting slot extends past the firstth area.Compared with the existing technology, the brightness that can increase by the firstth area promotes the homogeneity of light guide plate luminance, to promote the quality of backlight module.
Description
Technical field
The present invention relates to display technology fields, more particularly, to a kind of backlight module and display device.
Background technology
Display device increasingly becomes the indispensable part of people's daily life.Improve the display product of display device
Matter becomes important one of research direction.
A kind of display device of prior art offer includes display panel and backlight module.Referring to FIG. 1, Fig. 1 is existing
A kind of back light module unit structure schematic diagram that technology provides.Backlight module includes light guide plate 01 and LED light bar 02, LED light bar 02 with
The side 03 of light guide plate 01 is oppositely arranged.Light guide plate 01 includes hollow-out parts 04, and hollow-out parts 04 can be used for that the electricity such as camera are arranged
Sub- component.Due to the presence of hollow-out parts 04, the light that LED light bar 02 provides is difficult to reach the region 05 at 04 back side of hollow-out parts
In so that brightness is dark in region 05, the brightness irregularities of light guide plate 01, to reduce display quality.
Invention content
In view of this, the present invention provides a kind of backlight module and display devices.
The present invention provides a kind of backlight modules, including：Light guide plate and side entering type light source；Light guide plate includes hollow-out parts, phase
To first side and second side, hollow-out parts along light guide plate thickness direction run through light guide plate；First side is light guide plate
Incident side；Region between hollow-out parts and second side is the firstth area；Light guide plate includes a plurality of first guide-lighting slot, the first guide-lighting slot
Extend from the outer edge of light guide plate towards hollow-out parts, and the first guide-lighting slot extends past the firstth 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：
According to the optical characteristics of light guide plate, light is more concentrated in the outer edge of light guide plate, and the outer edge of light guide plate is bright
It spends some higher.Being provided in light guide plate has the first guide-lighting slot of focusing light effect, and the outer edge of light guide plate can be guided poly-
The light of collection is along the first guide-lighting slot transmission.Since the first guide-lighting slot extends past the firstth area, thus it can increase by the firstth area
Brightness promotes the homogeneity of light guide plate luminance, to promote the quality of backlight module.
Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technique 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.
Description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction 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 back light module unit structure schematic diagram that the prior art provides；
Fig. 2 is a kind of structural schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 3 is a kind of backlight module partial structural diagram of region A in Fig. 2；
Fig. 4 is a kind of cross-sectional view of the CC ' lines along Fig. 3；
Fig. 5 is another cross-sectional view of the CC ' lines along Fig. 3；
Fig. 6 is another partial structural diagram of region A in Fig. 2；
Fig. 7 is another partial structural diagram of region A in Fig. 2；
Fig. 8 is another partial structural diagram of region A in Fig. 2；
Fig. 9 is another cross-sectional view of the CC ' lines along Fig. 3；
Figure 10 is another partial structural diagram of region A in Fig. 2；
Figure 11 is that a kind of display device provided in an embodiment of the present invention cuts open planar structure schematic diagram.
Specific implementation mode
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body illustrates that 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.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
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.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
Please refer to Fig.2, Fig. 3 and Fig. 4, Fig. 2 be a kind of backlight module provided in an embodiment of the present invention structural schematic diagram, figure
3 be a kind of backlight module partial structural diagram of region A in Fig. 2, and Fig. 4 is a kind of cross-section structure signal of the CC ' lines along Fig. 3
Figure.
The present embodiment provides a kind of backlight modules, including：Light guide plate 10 and side entering type light source 20；Light guide plate 10 includes hollow out
Portion 11, opposite first side 12 and second side 13, hollow-out parts 11 run through light guide plate 10 along the thickness direction of light guide plate 10；The
A side 12 is the incident side of light guide plate 10；Region between hollow-out parts 11 and second side 13 is the first area 30；Light guide plate 10
Including a plurality of first guide-lighting slot 40, the first guide-lighting slot 40 extends from the outer edge of light guide plate 10 towards hollow-out parts 11, and first leads
Light slot 40 extends past the first area 30.
In the backlight module provided in the present embodiment, light source is side entering type light source 20, the light that side entering type light source 20 is sent out
Enter in 10 ontology of light guide plate from first side 12.Light occurs the optical effects such as repeatedly to reflect, reflect in light guide plate, at least
Some light is transmitted to second side 13.
Due to being provided with hollow-out parts 11 in light guide plate, the light path of the light transmitted towards second side 13 is interfered, and passes
The light transported in the first area 30 is less, and the first area 30 is dark relative to the brightness in other regions.Specifically, the first area 30 is located at
Hollow-out parts 11 deviate from the side of side entering type light source 20, and the first area 30 is between hollow-out parts 11 and second side 13.It is appreciated that
, since the light path inside light guide plate is complicated, the problem of region on 11 periphery of hollow-out parts there may be brightness disproportionation.For
It avoids causing unnecessary limitation, the not stringent boundary in the first area 30, shapes and sizes for the present invention.First 30, area
Region between hollow-out parts 11 and second side 13.For shape, the size in the first area 30 in various embodiments of the present invention
It is as exemplary only, the limitation for the present invention should not be caused.
The present embodiment is provided with a plurality of first guide-lighting slot 40 in light guide plate 10, and optionally, the first guide-lighting slot 40 can be
It makes to be molded in the technique of light guide plate 10 and be formed.
First guide-lighting slot 40 extends from the outer edge of light guide plate 10 towards hollow-out parts 11.Wherein, the outer edge of light guide plate 10
Refer to the edge of 10 ontology of light guide plate periphery, also should all be located at outer edge institute if there is remaining edge in 10 ontology of light guide plate
Among region made of surrounding.Although such as provided with hollow-out parts 11 in light guide plate 10, the edge of hollow-out parts 11 is still located at
Among region made of the outer edge of light guide plate 10 surrounds.
According to the optical characteristics of light guide plate 10, light is more concentrated in the outer edge of light guide plate 10, outside light guide plate 10
Edge brightness is some higher.Being provided in light guide plate 10 has the first guide-lighting slot 40 of focusing light effect, can guide light guide plate 10
The light of outer edge aggregation transmitted along the first guide-lighting slot 40.Since the first guide-lighting slot 40 extends past the first area 30, because
And the brightness in the first area 30 can be increased, the homogeneity of the brightness of light guide plate 10 is promoted, to promote the quality of backlight module.
It will be appreciated by persons skilled in the art that the light path inside light guide plate is complicated, the brightness in the firstth area nor
Phenomenon uniform, that there are some regions in the firstth area is relatively bright, other regions are relatively dark.Also, light guide plate
The shape of outer peripheral shape and hollow-out parts can influence the Luminance Distribution situation in the firstth area.Therefore, the first guide-lighting slot is specific
Length, relative position needs are configured according to the concrete condition of display panel, and guide-lighting slot can extend to brightness in the firstth area
Dark region can be not provided with guide-lighting slot for the relatively high region of brightness in the firstth area.
In the following, the present invention herein illustratively illustrates the specific setting of guide-lighting slot.
Optionally, please continue to refer to Fig. 2 and Fig. 3, the first guide-lighting slot 40 extends to hollow-out parts 11 from the edge of light guide plate 10
Edge, as, the light of the outer edge of light guide plate 10 aggregation can be transmitted to hollow-out parts 11 along the first guide-lighting slot 40
Edge.
In some optional realization methods, please refer to Fig.2 and Fig. 6, Fig. 6 be region A in Fig. 2 another partial structurtes
Schematic diagram.First guide-lighting slot 40 extends from the outer edge of light guide plate 10 towards hollow-out parts 11, the not side edge with hollow-out parts 11.
In the present embodiment, the first guide-lighting slot 40 can assemble the light of the outer edge of light guide plate 10, by the outer edge of light guide plate 10
Light towards hollow-out parts 11 guide after, light can occur in 10 ontology of light guide plate reflect reflex, because without prolonging
The brightness in the first area 30 can be increased by extending to the edge of hollow-out parts 11, the homogeneity of the brightness of backlight module be promoted, to carry
Rise the quality of backlight module.
In some optional embodiments, please refers to Fig.2 and Fig. 7, Fig. 7 are that another partial structurtes of region A in Fig. 2 are shown
It is intended to.In backlight module provided in this embodiment, one first guide-lighting slot 40 includes at least two cross-talk groove bodies 41, adjacent two sections
Be between discrete, adjacent two cross-talk groove bodies 41 between pilot trench body 41 include 10 ontology of light guide plate.In the present embodiment, only with
One first guide-lighting slot 40 illustrates for wrapping three cross-talk groove bodies, and three cross-talk groove bodies are respectively pilot trench body 41A, pilot trench body 41B
With pilot trench body 41C.It is separated by light conducting plate body between pilot trench body 41A, pilot trench body 41B, the two does not connect；Pilot trench body 41B
It is separated by light conducting plate body between pilot trench body 41C, the two does not also connect.In the present embodiment, in the firstth area, pilot trench body is set
41 can promote the brightness of 41 position of pilot trench body in practical applications, can be set according to the Luminance Distribution situation in the firstth area
The position of pilot trench body 41 is set, specifically, pilot trench body 41 can be arranged for the dark region of brightness in the firstth area, for the firstth area
The brighter region of middle brightness can be not provided with pilot trench body, and brightness is caused in the firstth area not to avoid the first guide-lighting whole setting of slot 40
?.To promote the brightness homogeneity in the firstth area, and the homogeneity of the brightness of backlight module is promoted, to promote backlight module
Quality.
In some optional embodiments, referring to FIG. 8, Fig. 8 is another partial structural diagram of region A in Fig. 2.
In embodiment shown in Fig. 8, the first guide-lighting slot 40 is curved section shape.It is understood that the first guide-lighting slot 40 can be straight
Line segment shape or curved section shape.Alternatively, optional, the shape of a plurality of first guide-lighting slot can be not exactly the same；Or
Person is optional, and the shape of a plurality of first guide-lighting slot can be different.
It will be appreciated by persons skilled in the art that the light path inside light guide plate is complicated, the brightness in the firstth area nor
Phenomenon uniform, that there are some regions in the firstth area is relatively bright, other regions are relatively dark.Also, light guide plate
The shape of outer peripheral shape and hollow-out parts can influence the Luminance Distribution situation in the firstth area.Therefore, the first guide-lighting slot is specific
Length, relative position, shape, arrangement can be configured according to the concrete condition of backlight module in practical application.
In some optional embodiments, please continue to refer to Fig. 2, Fig. 3 and Fig. 4, the quantity of a plurality of first guide-lighting slot 40 is
M, be followed successively by the 1 the first guide-lighting slots 401 ..., the guide-lighting slot 40A of A first ..., the guide-lighting slot 40M of M first, and A the
The depth of one guide-lighting slot 40A is maximum；The depth of the 1 the first guide-lighting slots 401 to the guide-lighting slot 40A of A first successively increase, A the
The depth of one the first guide-lighting slot 40M of leaded light slot 40A to M is sequentially reduced；Wherein, M, A are positive integer, and 1 < A < M.
Optionally, the depth of the first guide-lighting slot 40 is d, 0.45 μm≤d≤2.5 μm.As, the depth of the first guide-lighting slot is most
It is small to be worth for 0.45 μm, most 2.5 μm of maximum.The depth of first guide-lighting slot is unsuitable too small, and light gathering is poor when being less than 0.45 μm,
Light gathering is too strong when more than 2.5 μm, is easy to form apparent bright rays, reduces the quality of backlight module.
In the present embodiment, the depth of a plurality of first guide-lighting slot 40 is gradual change.Specifically, the depth of the guide-lighting slot 40A of A first
Degree is the largest, and the depth of the first guide-lighting slot of the both sides of the guide-lighting slot 40A of A first is successively decreased.Due to the depth of the first guide-lighting slot
Deeper, the ability for assembling light is stronger, and therefore, the brightness of the guide-lighting slot 40A of A first is larger, the first leaded lights of A slot 40A to the 1st
The brightness of first guide-lighting slot 401 is gradually reduced, and the brightness of the guide-lighting slot 40M of the first leaded lights of A slot 40A to M first is gradually reduced,
Such setting can make the region that the first guide-lighting slot is not provided in light conducting plate body and provided with a plurality of first guide-lighting slot
Region joining place brightness gradual change more naturally, to avoid the brightness due to occurring provided with the first guide-lighting slot prominent
Become.Display panel provided in this embodiment can further promote the homogeneity of backlight module brightness.
Please continue to refer to Fig. 2, Fig. 3 and Fig. 4, if M is odd number,If M is even number,OrFor example, M=41, then the depth of A=21, as the 21 the first guide-lighting slots are maximum.For example, M=40, then A=20
Or A=21, the depth of the as the 20 the first guide-lighting slots is maximum or the depth of the 21 the first guide-lighting slots is maximum.The present embodiment
In, setting is maximum positioned at the depth of the intermediate first guide-lighting slot, and a plurality of first guide-lighting slot is made gradually to increase from both sides to intermediate depth
Add, corresponding brightness gradually increases, to make other regional luminances rank in region and light guide plate where a plurality of first guide-lighting slot
It is connected to so.
In some optional embodiments, incorporated by reference to another section for reference to figure 3 and Fig. 5, Fig. 5 being the CC ' lines along Fig. 3
Structural schematic diagram.In backlight module provided in this embodiment, the depth of a plurality of first guide-lighting slot 40 can be identical.Due to first
The depth of guide-lighting slot 40 is identical, and the ability for assembling light is essentially identical, to make the regional luminance where a plurality of first guide-lighting slot
It is more uniform, the homogeneity of the brightness in the firstth area is promoted, to promote the quality of backlight module.
Optionally, referring to FIG. 3, the extending direction that at least there are two first guide-lighting slots 40 is identical.Optionally, it at least deposits
Extend along first direction Y in two first guide-lighting slots 40.In the present embodiment, at least there is the extension side of two first guide-lighting slots 40
To the extending direction all same of identical or a plurality of first guide-lighting slot 40, optionally, a plurality of first guide-lighting slot 40 is along first party
Extend to Y.The spacing between the first guide-lighting slot 40 can be made uniform, to make the regional luminance distribution where the first guide-lighting slot 40
Uniformly, the quality of backlight module is promoted.In addition to this, a plurality of first guide-lighting slot 40 is disposed in parallel relation to one another, and design is simple, and makes
The difficulty for making technique is relatively low, can promote manufacturing backlight module efficiency.
Optionally, it in the backlight module that any embodiment of the present invention provides, such as please refers to Fig.2, Fig. 3 and Fig. 4, a plurality of the
One guide-lighting slot 40 is located at the light-emitting surface S1 of light guide plate.Wherein, the light-emitting surface S1 of light guide plate refers to that backlight module is applied to display and fills
When setting middle, backlight module and display panel are oppositely arranged, and the light being emitted from the light-emitting surface S1 of light guide plate provides for display panel
Backlight.In the present embodiment, the light-emitting surface S1 in light guide plate is arranged in a plurality of first guide-lighting slot 40, is conducive to promote going out for light guide plate
Smooth surface S1 corresponding position brightness, to promote the quality of backlight module.
In some optional embodiments, referring to FIG. 4, the light guide plate 10 between two first adjacent guide-lighting slots 40
Body is the first raised item 42；The apex angle α of first cross section of the first raised item 42 is acute angle；Wherein the first cross section is perpendicular to
The extending direction of one raised item 42.Optionally, referring to FIG. 9, Fig. 9 is another cross-section structure signal of the CC ' lines along Fig. 3
Figure.In the present embodiment, the apex angle α of the first cross section of the first raised item 42 is fillet.Apex angle α can be angular shape, such as
Acute angle.Therefore, those skilled in the art can flexibly select the set-up mode of apex angle α according to actual demand, the present invention to this not
It is limited.
It should be noted that Fig. 4 and Fig. 9, the section for the first raised item 42 illustrated is perpendicular to the first raised item
First cross section of 42 extending direction.
In some optional embodiments, referring to FIG. 10, Figure 10 is another partial structurtes signal of region A in Fig. 2
Figure.In the present embodiment, light guide plate 10 includes a plurality of second guide-lighting slot 50, and the second guide-lighting slot 50 is engraved from the outer edge direction of light guide plate
Empty portion 11 extends, and at least one the second guide-lighting slots 50 extend past the first area 30.The extending direction of second guide-lighting slot 50 and the
The extending direction intersection of one guide-lighting slot 40.
According to the optical characteristics of light guide plate, light is more concentrated in the outer edge of light guide plate, and the outer edge of light guide plate is bright
It spends some higher.Being provided in light guide plate has the first guide-lighting slot of focusing light effect, and the outer edge of light guide plate can be guided poly-
The light of collection is along the first guide-lighting slot transmission.Since the first guide-lighting slot extends past the firstth area, thus it can increase by the firstth area
Brightness promotes the homogeneity of the brightness of light guide plate, to promote the quality of backlight module.Other than the guide-lighting slot of setting first,
Light guide plate 10 further includes a plurality of second guide-lighting slot 50, and the second guide-lighting slot 50 extends from the outer edge of light guide plate towards hollow-out parts 11,
And at least one the second guide-lighting slot 50 extend past the first area 30.By the guide-lighting slot 50 of setting second, can further guide
The light of the outer edge aggregation of light guide plate 10 is transmitted along the second guide-lighting slot 50, increases the region where the second guide-lighting slot 50
Brightness promotes the homogeneity of the brightness of light guide plate 10, to promote the quality of backlight module.In addition, the first guide-lighting slot 10 and the
The extending direction intersection of two guide-lighting slots 50, therefore, the guide-lighting slot of intersection share effect, further promote light gathering, in leaded light
The region of slot intersection, can effectively promote brightness, and meeting the needs of different backlight modules can be with, and this first guide-lighting slot and
Second guide-lighting slot has different extending directions, can expand the area of darker area on to be improvedd light guide plate 10, to
Make the change procedure of light than shallower, to the homogeneity of the further brightness of promotion light guide plate, to promote backlight mould
The essence of group.In the present embodiment, the first guide-lighting slot 40 extends along first direction Y, and Y2 extends the second guide-lighting slot 50 in a second direction.
The spacing between the second guide-lighting slot 50 can be made uniform, to make the regional luminance where the second guide-lighting slot 50 be evenly distributed, carried
Rise the quality of backlight module.In addition to this, a plurality of first guide-lighting slot 50 is disposed in parallel relation to one another, and design is simple, and manufacture craft
Difficulty it is relatively low, manufacturing backlight module efficiency can be promoted.
Optionally, the shape of the second guide-lighting slot can be straightway shape or curved section shape, can be according to practical work
Skill demand is selected, and the present embodiment is not specifically limited this.It is understood that shape, the depth of the second guide-lighting slot 50
It is referred to the first guide-lighting slot 40 etc. specific set-up mode and is configured, details are not described herein for the present embodiment.
It is further provided with the second guide-lighting slot 50 in the present embodiment, in light guide plate, can further guide light guide plate 10
The light of outer edge aggregation transmitted along the second guide-lighting slot 50, increase the brightness in the region where the second guide-lighting slot 50, carry
The homogeneity for rising the brightness of light guide plate 10, to promote the quality of backlight module.
Also, at least one the first guide-lighting slots 40 and at least one the second guide-lighting slots 50 intersect, and the guide-lighting slot of intersection shares
Effect further promotes light gathering, in the region of guide-lighting slot intersection, can effectively promote brightness, meet different backlight moulds
The demand of group.
Optionally, in the backlight module that any of the above-described embodiment of the present invention provides, such as referring to FIG. 2, the first area 30
The dot density of middle light guide plate is more than the dot density of light guide plate in other regions.In the present embodiment, increases and led in the first area 30
The dot density of tabula rasa can promote the brightness of the light guide plate in the firstth area, thus further promote the brightness of light guide plate
Homogeneity, to promote the quality of backlight module.
Optionally, in the backlight module that any of the above-described embodiment of the present invention provides, such as referring to FIG. 2, hollow-out parts 11
Shape be round or ellipse.It should be noted that the concrete shape of hollow-out parts 11 can be according to the reality of backlight module
Applicable cases are configured, and in other optional realization methods of the invention, the shape of hollow-out parts 11 can be triangle, four sides
Shape, pentagon or other polygons, the embodiment of the present invention no longer repeat one by one.
It will be appreciated by persons skilled in the art that the light path inside light guide plate is complicated, the brightness in the firstth area nor
Phenomenon uniform, that there are some regions in the firstth area is relatively bright, other regions are relatively dark.Also, light guide plate
The shape of outer peripheral shape and hollow-out parts can influence the Luminance Distribution situation in the firstth area.Therefore, the above-mentioned each implementation of the present invention
Example is exemplary the explanation of the first guide-lighting slot, should not cause the limitation for the present invention.First guide-lighting slot is specifically grown
Degree, relative position, shape, arrangement can be configured according to the concrete condition of backlight module in practical application, and the present invention is herein
No longer repeat one by one.
The present invention also provides a kind of display devices, and it is provided in an embodiment of the present invention a kind of aobvious to please refer to Fig.1 1, Figure 11
Showing device cross-sectional view, display device 1000 provided in this embodiment include backlight module 100 provided by the invention.It can
Choosing, display device further includes display panel 100, and display panel 100 can be liquid crystal display panel.Optionally, in display surface
Hollow-out parts or hyalomere can be arranged in position corresponding with hollow-out parts 11 in plate 100.
Optionally, it is provided with panel hollow-out parts 101 accordingly in display panel 100.Panel hollow-out parts 101 and hollow-out parts 11
It is perforation, electronic component such as camera can be integrated in panel hollow-out parts 101 and hollow-out parts 11, to make light can
To be transmitted from panel hollow-out parts 101 and hollow-out parts 11, meet the work requirements of electronic component such as camera.
Alternatively, it is optional, hyalomere 101 can be set in display panel 100, and the film layer structure in hyalomere 101 is
The higher material of light transmission rate.For example, being not provided with driving circuit, color film, black matrix etc. in hyalomere 101 has shading, filters
The structure of effect.Therefore, the electronic components such as camera can be arranged in hollow-out parts 11, hyalomere 101 is for camera etc.
The working performance influence of electronic component is smaller, full to allow light to be transmitted from panel hollow-out parts 101 and hyalomere 101
The work requirements of sufficient electronic component such as camera.
It is understood that display device provided in an embodiment of the present invention, can be mobile phone, computer, TV, car-mounted display
Other display devices with display function such as device, the present invention are not specifically limited this.It is provided in an embodiment of the present invention aobvious
Showing device, with display panel provided in an embodiment of the present invention advantageous effect, specifically can refer to the various embodiments described above for
Display panel illustrates, and details are not described herein for the present embodiment.
By above-described embodiment it is found that backlight module provided by the invention and display device, at least realizing following has
Beneficial effect：
According to the optical characteristics of light guide plate, light is more concentrated in the outer edge of light guide plate, and the outer edge of light guide plate is bright
It spends some higher.Being provided in light guide plate has the first guide-lighting slot of focusing light effect, and the outer edge of light guide plate can be guided poly-
The light of collection is along the first guide-lighting slot transmission.Since the first guide-lighting slot extends past the firstth area, thus it can increase by the firstth area
Brightness promotes the homogeneity of the brightness of light guide plate, to promote the quality of backlight module.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to illustrating, 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 example.This hair
Bright range is defined by the following claims.
Claims (14)
1. a kind of backlight module, which is characterized in that including：
Light guide plate and side entering type light source；The light guide plate includes hollow-out parts, opposite first side and second side, the hollow out
The light guide plate is run through along the thickness direction of the light guide plate in portion；The first side is the incident side of the light guide plate；It is described
Region between hollow-out parts and the second side is the firstth area；
The light guide plate includes a plurality of first guide-lighting slot, and the described first guide-lighting slot is engraved from the outer edge of the light guide plate described in
Empty portion extends, and the described first guide-lighting slot extends past firstth area.
2. backlight module according to claim 1, which is characterized in that
The quantity of a plurality of first guide-lighting slot is M, be followed successively by the 1 the first guide-lighting slots 1 ..., the guide-lighting slots of A first ...,
The guide-lighting slots of M first, and the depth of the guide-lighting slots of A first is maximum；
The depth of described the 1 the first guide-lighting slots to the guide-lighting slots of the A first successively increases, the guide-lighting slots of the A first to institute
The depth for stating the guide-lighting slots of M first is sequentially reduced；Wherein, M, A are positive integer, and 1 < A < M.
3. backlight module according to claim 2, which is characterized in that
If M is odd number,
If M is even number,Or
4. backlight module according to claim 1, which is characterized in that
The depth of the first guide-lighting slot is d, 0.45 μm≤d≤2.5 μm.
5. backlight module according to claim 1, which is characterized in that
The extending direction that at least there are two the described first guide-lighting slots is identical.
6. backlight module according to claim 5, which is characterized in that
At least there are two the described first guide-lighting slots to extend in a first direction.
7. backlight module according to claim 1, which is characterized in that
One first guide-lighting slot includes at least two cross-talk groove bodies, be between adjacent two sections of pilot trench bodies it is discrete,
It include the light conducting plate body between two sections of adjacent pilot trench bodies.
8. backlight module according to claim 1, which is characterized in that
The a plurality of first guide-lighting slot is located at the light-emitting surface of the light guide plate.
9. backlight module according to claim 1, which is characterized in that
Light conducting plate body between two adjacent the described first guide-lighting slots is the first raised item；
The apex angle of first cross section of first raised item is acute angle or fillet；Wherein described first cross section is perpendicular to institute
State the extending direction of the first raised item.
10. backlight module according to claim 1, which is characterized in that
Described first guide-lighting slot extends to the edge of the hollow-out parts from the edge of the light guide plate.
11. backlight module according to claim 1, which is characterized in that
The light guide plate includes a plurality of second guide-lighting slot, and the described second guide-lighting slot is engraved from the outer edge of the light guide plate described in
Empty portion extends, and at least one described second guide-lighting slot extends past firstth area；
The extending direction intersection of the extending direction of described second guide-lighting slot and the first guide-lighting slot.
12. backlight module according to claim 1, which is characterized in that
The dot density of light guide plate is more than the dot density of light guide plate in other regions in firstth area.
13. backlight module according to claim 1, which is characterized in that
The shape of the hollow-out parts is round or ellipse.
14. a kind of display device, which is characterized in that including according to claim 1-13 any one of them backlight modules.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810713350.0A CN108803145B (en) | 2018-06-29 | 2018-06-29 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810713350.0A CN108803145B (en) | 2018-06-29 | 2018-06-29 | Backlight module and display device |
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| CN108803145A true CN108803145A (en) | 2018-11-13 |
| CN108803145B CN108803145B (en) | 2021-04-02 |
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| CN109407203A (en) * | 2018-12-28 | 2019-03-01 | 厦门天马微电子有限公司 | Light guide plate, backlight module and display device |
| CN109613752A (en) * | 2018-12-18 | 2019-04-12 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN112577932A (en) * | 2020-11-27 | 2021-03-30 | 苏州雅睿生物技术有限公司 | Single-light-source multi-sample fluorescence detection optical system and working method thereof |
| CN113495386A (en) * | 2020-04-03 | 2021-10-12 | 夏普株式会社 | Illumination device and display device |
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|---|---|
| CN108803145B (en) | 2021-04-02 |
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