CN109581746A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN109581746A CN109581746A CN201811636918.XA CN201811636918A CN109581746A CN 109581746 A CN109581746 A CN 109581746A CN 201811636918 A CN201811636918 A CN 201811636918A CN 109581746 A CN109581746 A CN 109581746A
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- China
- Prior art keywords
- output optical
- optical zone
- backlight module
- guide plate
- light guide
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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
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
Abstract
The invention discloses a kind of backlight module and display devices, comprising: at least one is located at the notch at edge；Output optical zone, the non-output optical zone around output optical zone；Output optical zone includes first edge, and first edge forms at least one first notch to output optical zone inner recess；Non- output optical zone includes the first non-output optical zone being adapted with the location and shape of the first notch；Light guide plate and light source assembly positioned at output optical zone, light source assembly are located at at least side of light guide plate, and the light-emitting surface of light source assembly is towards the incidence surface of light guide plate；Glue frame positioned at non-output optical zone, glue frame include the first sub- glue frame positioned at the first non-output optical zone, and the first sub- glue frame includes the medial surface close to light guide plate side；Groove includes the first surface being connected, second surface and third surface, and first surface and third surface are along the both ends for being relatively arranged on second surface perpendicular to the direction of light guide plate.Improve the display effect of display terminal.
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
Backlight module is one of key part and component of liquid crystal display, for providing sufficient brightness for liquid crystal display panel
With the light source being evenly distributed, its illumination effect will directly influence the visual effect of liquid crystal display.With liquid crystal display skill
The continuous development of art, the application field of liquid crystal display especially colour liquid crystal display device are also constantly being widened.By liquid crystal display
The market of device pulls, and backlight industry has an air of prosperity scene.The quality of backlight performance is in addition to will have a direct impact on LCD imaging
Outside quality, the cost of backlight accounts for the 30-50% of LCD module, and consumed electric power more accounts for the 75% of module, can say it is LCD mould
Considerable spare part in block.Fine, large-sized LCD, it is necessary to have high performance backlight technology matched, therefore work as
While LCD industry makes great efforts developing new opplication field, high performance (such as high brightness, cost effective, low power consumption of backlight technology
Change, be lightening etc.) also play the role of person who has rendered outstanding service behind the scenes.
With the development of display panel, people are no longer only satisfied with the routine such as large scale, fine definition of display panel
Performance indicator also has more diversified requirement to the shape of display panel, therefore special-shaped display panel occurs, and correspondence also goes out
Special-shaped backlight module is showed, such as has been used to place camera in the presence of what special-shaped edge was formed in display panel and backlight module
Region.
And in existing special-shaped backlight module, due to the limitation of structure, the partial region in backlight module can generate dark space,
Influence the display effect of display terminal.
Summary of the invention
In view of this, the present invention provides a kind of backlight modules, comprising: at least one is located at the notch at edge；Output optical zone,
Around the non-output optical zone of output optical zone；Output optical zone includes first edge, and first edge forms at least one to output optical zone inner recess
First notch；Non- output optical zone includes the first non-output optical zone being adapted with the location and shape of the first notch；Positioned at output optical zone
Light guide plate and light source assembly, light source assembly are located at at least side of light guide plate, and the light-emitting surface of light source assembly is towards light guide plate
Incidence surface；Glue frame positioned at non-output optical zone, glue frame include the first sub- glue frame positioned at the first non-output optical zone, and the first sub- glue frame includes
Medial surface close to light guide plate side, inside is recessed to form groove away from the direction of output optical zone；Groove includes being connected
First surface, second surface and third surface, and first surface and third surface are oppositely arranged along the direction perpendicular to light guide plate
In the both ends of second surface.
The present invention also provides a kind of display device, including backlight module and the display panel being oppositely arranged with backlight module,
Wherein, backlight module backlight module provided by the invention；Display panel is equipped with through-hole or transparent area in the position for corresponding to notch.
Compared with prior art, backlight module provided by the invention and display device at least realize following beneficial effect
Fruit:
Non- output optical zone include with the location and shape of the first notch be adapted the first non-output optical zone, the first sub- glue frame it is interior
Side is recessed to form groove away from the direction of output optical zone, the mutually close side table of the medial surface of light guide plate the first sub- glue frame of neutralization
It light first surface in a groove that face is projected and is reflected on third surface, the inside of light guide plate the first sub- glue frame of neutralization
The light portion that the mutually close side surface in face is projected is reflected back light guide plate, improves the region in output optical zone near first edge
The utilization rate of light is effectively relieved in output optical zone what the partial region near first edge was formed due to the first sub- blocking for glue frame
The case where dark space.So that emitting brightness is consistent as far as possible in output optical zone, to improve the display effect of display terminal.
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 of backlight module provided by the invention；
Fig. 2 be in Fig. 1 backlight module along a kind of the schematic diagram of the section structure of A-A '；
Fig. 3 is the partial profile structure of another backlight module provided by the invention；
Fig. 4 is the partial profile structure of another backlight module provided by the invention；
Fig. 5 is a kind of structural schematic diagram of catoptric arrangement provided by the invention；
Fig. 6 is the partial profile structure of another backlight module provided by the invention；
Fig. 7 is a kind of structural schematic diagram of the first sub- glue frame in backlight module described in Fig. 4；
Fig. 8 be in Fig. 1 backlight module along a kind of the schematic diagram of the section structure of B-B '；
Fig. 9 be in Fig. 1 backlight module along another the schematic diagram of the section structure of A-A '；
Figure 10 is a kind of planar structure schematic diagram of display device provided by the invention；
Figure 11 be in Figure 10 display device along the schematic diagram of the section structure of C-C '.
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.
Fig. 1 is a kind of planar structure schematic diagram of backlight module provided by the invention, Fig. 2 be in Fig. 1 backlight module along A-
A kind of the schematic diagram of the section structure of A ', with reference to Fig. 1 and Fig. 2, the present embodiment provides a kind of backlight modules, comprising: at least one position
In the notch 10 of edge A1；
Output optical zone AA, the non-output optical zone NA around output optical zone AA；
Output optical zone AA includes first edge A2, and first edge A2 forms at least one to output optical zone AA inner recess and first lacks
Mouth 20；
Non- output optical zone NA includes the first non-output optical zone NA1 being adapted with the location and shape of the first notch 21；
Positioned at the light guide plate 31 and light source assembly 32 of output optical zone AA, light source assembly 32 is located at at least side of light guide plate 31,
And the light-emitting surface of light source assembly 32 is towards the incidence surface of light guide plate 31；
Positioned at the glue frame 40 of non-output optical zone NA, glue frame 40 includes the first sub- glue frame 41 positioned at the first non-output optical zone NA1, the
One sub- glue frame 41 includes the medial surface 42 close to 31 side of light guide plate, and medial surface 42 is recessed to be formed to the direction far from output optical zone AA
Groove 50；
Groove 50 includes the first surface 51, second surface 52 and the third surface 53 that are connected, and first surface 51 and the
Three surfaces 53 are relatively arranged on the both ends of second surface 52 along the direction perpendicular to light guide plate 31.
Specifically, backlight module provided in this embodiment is used to provide light source to display panel, there is light in the AA of output optical zone
Outgoing, positioned at the central area of backlight module region.The fringe region of backlight module is non-output optical zone NA, non-output optical zone NA
Glue frame 10 can be set.
Backlight module provided in this embodiment is special-shaped backlight module, specifically, backlight module includes at least one position
At least one first notch is formed to output optical zone AA inner recess in the first edge A2 of the notch 10 of edge A1, output optical zone AA
20, non-output optical zone NA include the first non-output optical zone NA1 being adapted with the location and shape of the first notch 21.The present embodiment only with
Output optical zone AA include first notch 20, and non-output optical zone NA include a first non-output optical zone NA1 for be illustrated, can
Choosing, output optical zone AA can also include two or first notch 20 above, and non-output optical zone NA can also include two
Or the first above non-output optical zone NA1, the present embodiment are not particularly limited this.
Backlight module provided in this embodiment further includes the light guide plate 31 and light source assembly 32 positioned at output optical zone AA, and guide-lighting
Plate 31 and light source assembly 32 are respectively positioned in the accommodating space of the formation of glue frame 40；Optionally, in the accommodating space that glue frame 40 is formed also
The structures such as other optical diaphragms can be set, the present embodiment no longer repeats one by one.Light source assembly 32 for example can be LED
Lamp, LED light can be mounted and electrically connected on printed circuit board, the light-emitting surface of the LED can with the incidence surface of face light guide plate 31,
Light guiding points are provided on light guide plate 31, are expanded after incident ray is irradiated to each light guiding points on light guide plate 31 towards all angles
It dissipates, then destroys conditioned reflex and projected by the light-emitting surface of light guide plate 31, it, can be by various densitys, light guiding points not of uniform size
The light-emitting surface of light guide plate 31, which is realized, uniformly goes out light.
Non- output optical zone NA includes the first non-output optical zone NA1 being adapted with the location and shape of the first notch 21, the first son
The medial surface 42 of glue frame 41 is recessed to form groove 50 to the direction far from output optical zone AA, and glue frame usually selects resin material to make,
With relatively smooth even curface, there is preferable reflex for light.Therefore, the first surface 51 of groove 50,
There is light on two surfaces 52 and third surface 53 preferable reflex.Light guide plate 31 neutralizes the inside of the first sub- glue frame 41
The light that the mutually close side surface in face 42 is projected is on first surface 51, second surface 52 and the third surface 53 in groove 50
It reflects, the light portion reflection that the mutually close side surface of the medial surface 42 of the first sub- glue frame 41 of neutralization of light guide plate 31 is projected
Light guide plate is returned, the utilization rate of the light in the region in the AA of output optical zone near first edge A2 is improved, is effectively relieved in the AA of output optical zone
Partial region near first edge A2 is because of the dark space of the first sub- glue frame 41 formed due to blocking the case where.So that in the AA of output optical zone
The emitting brightness in each region is consistent as far as possible, to improve the display effect of display terminal.
Fig. 3 is the partial profile structure of another backlight module provided by the invention, optional with reference to Fig. 1 and Fig. 3
, backlight module further includes the catoptric arrangement 60 being set on first surface 51 and third surface 53.
Specifically, being provided with catoptric arrangement 60 on first surface 51 and third surface 53, light guide plate 31 neutralizes the first sub- glue
The light portion that the mutually close side surface of the medial surface 42 of frame 41 is projected reflects knot on first surface 51 and third surface 53
It is reflected between structure 60, the light that the mutually close side surface of the medial surface 42 of the first sub- glue frame 41 of neutralization of light guide plate 31 is projected
Part can transmit in groove 50, this some light has a part during transmission and is reflected back light guide plate 31 and groove 50
In adjacent region, the utilization rate of the light in the region in the AA of output optical zone near first edge A2 is improved, light out is further alleviated
Partial region in area AA near first edge A2 is because of the dark space of the first sub- glue frame 41 formed due to blocking the case where.
Fig. 4 is the partial profile structure of another backlight module provided by the invention, optional with reference to Fig. 1 and Fig. 4
, wherein the first sub- glue frame 41 includes at least one first section 43, and the intersection in first surface 51 and the first section 43 is first
The intersection in intersection 54, second surface 52 and the first section 43 is the second intersection 55, the intersection on third surface 53 and the first section 43
For third intersection 56, the first section 43 is perpendicular to 31 place plane of light guide plate, and it is perpendicular to first edge A2；
Angle between first intersection 54 and the second intersection 55 is θ 1, the angle between third intersection 56 and the second intersection 55
For θ 2；Wherein,
1≤150 ° of 135 °≤θ, 2≤150 ° of 135 °≤θ.
Specifically, in the first section, the angle, θ 1, third intersection 56 between the first intersection 54 and the second intersection 55 and
Angle between two intersections 55 is that θ 2 meets 1≤150 ° of 135 °≤θ, and 2≤150 ° of 135 °≤θ, light guide plate 31 neutralizes the first sub- glue
First surface 51 and third table of the light a part that the mutually close side surface of the medial surface 42 of frame 41 is projected in groove 50
It is reflected on face 53；Some is reflected between the catoptric arrangement 60 on first surface 51 and third surface 53,
To which this part light transmits in groove 50, and this part light is partially reflected back light guide plate in transmission process in groove 50, mentions
The utilization rate of the light in the region in high output optical zone AA near first edge A2 alleviates in the AA of output optical zone near first edge A2
Partial region because of the dark space of the first sub- glue frame 41 formed due to blocking the case where so that emitting brightness is protected as far as possible in the AA of output optical zone
It holds unanimously, to improve the display effect of display terminal.As 150 ° of 1 > of θ, 150 ° of 2 > of θ, light guide plate 31 neutralizes the first sub- glue
In the light that the mutually close side surface of the medial surface 42 of frame 41 is projected, it is reflected back and leads by first surface 51 and third surface 53
The light of tabula rasa 31 can be reduced, and be unfavorable for light by catoptric arrangement 60 on first surface 51 and third surface 53 in groove 50
Middle transmission is unfavorable for solving partial region being formed due to blocking because of the first sub- glue frame 41 in the AA of output optical zone near first edge A2
Dark space the phenomenon that.As 135 ° of 1 < of θ, 135 ° of 2 < of θ, the medial surface 42 that light guide plate 31 neutralizes the first sub- glue frame 41 is mutually close
In the light that one side surface is projected, can also it be reduced by the light that first surface 51 and third surface 53 are reflected back light guide plate 31,
And the light transmitted in groove 50 is unfavorable for being reflected back during transmission in light guide plate 31 and the adjacent region of groove 50,
It is unfavorable for solving the partial region in the AA of output optical zone near first edge A2 because of the dark space of the first sub- glue frame 41 formed due to blocking
The phenomenon that.
It continues to refer to figure 1 and Fig. 4, optionally, wherein the first sub- glue frame 41 is in the side perpendicular to 31 place plane of light guide plate
Upward height is L, and the length of the second intersection 55 is H；
Wherein, L/2≤H≤2L/3, L > 0.
Specifically, using the direction perpendicular to 31 place plane of light guide plate as first direction X, in a first direction on X, the first son
The height of glue frame 41 is L, and the length of the second intersection 55 is H, L/2≤H≤2L/3, is conducive to light guide plate 31 and neutralizes the first sub- glue frame
The light that the mutually close side surface of 41 medial surface 42 is projected occurs to emit and be transmitted in groove 50, alleviates output optical zone AA
Partial region near middle first edge A2 reduces groove because of the dark space of the first sub- glue frame 41 formed due to blocking the case where
The influence of the structural soundness of 50 pair of first sub- glue frame 41.It, can be by reducing the X in a first direction of groove 50 as H < L/2
Highly, at this point, being injected in the light that the mutually close side surface of medial surface 42 that light guide plate 31 neutralizes the first sub- glue frame 41 is projected
The part of groove 50 can be reduced；The length of the first intersection 54 and third intersection 56 can also be increased to realize, will increase at this time recessed
Influence of the slot 50 to the structural soundness of the first sub- glue frame 41.As H > 2L/3, the first intersection 54 and third intersection 56 can be reduced
Length, be unfavorable for light guide plate 31 and neutralize light that the mutually close side surface of medial surface 42 of the first sub- glue frame 41 is projected the
One surface 51 and third surface 53 emit.
Fig. 5 is a kind of structural schematic diagram of catoptric arrangement provided by the invention, with reference to Fig. 4 and Fig. 5, optionally, wherein anti-
Penetrating structure 60 is triangular prism structure, and catoptric arrangement 60 is located in groove 50.
Specifically, catoptric arrangement 60 is set on the first surface 51 and third surface 53 in groove 50, catoptric arrangement 60
For triangular prism structure, the material of catoptric arrangement 60 can be metal, have preferable reflex, and triangular prism knot for light
The catoptric arrangement 60 of structure protrudes 51 place plane of first surface or 53 place plane of third surface, light can be in the every of catoptric arrangement 60
It is reflected on a surface, the light that the mutually close side surface of the medial surface 42 of the first sub- glue frame 41 of neutralization of light guide plate 31 is projected
The light of middle more direction can be reflected repeatedly between the catoptric arrangement 60 on first surface 51 and third surface 53, this portion
Light splitting can be transmitted in groove 50, and this some light has a part during transmission and passes through catoptric arrangement 60 instead
It is emitted back towards in light guide plate 31 and the adjacent region of groove 50, improves the benefit of the light in the region in the AA of output optical zone near first edge A2
With rate, further alleviate partial region in the AA of output optical zone near first edge A2 being formed due to blocking because of the first sub- glue frame 41
The case where dark space.
Fig. 6 is the partial profile structure of another backlight module provided by the invention, with reference to Fig. 6, optionally,
In, catoptric arrangement 60 is the reflecting layer 60a for covering first surface 51 and third surface 53.
Specifically, reflecting layer 60a is set to first surface 51 and third surface 53 in groove 50, the material of reflecting layer 60a
Material can be metal, have preferable reflex for light, light guide plate 31 neutralizes 42 phase of medial surface of the first sub- glue frame 41
The light portion that a close side surface is projected can carry out instead between the reflecting layer 60a on first surface 51 and third surface 53
Interflection, so that this part light can be transmitted in groove 50, and there is a part in this some light during transmission
It is reflected back in light guide plate 31 and the adjacent region of groove 50, is improved in the AA of output optical zone near first edge A2 by reflecting layer 60a
Region light utilization rate, further alleviate the partial region in the AA of output optical zone near first edge A2 because of the first sub- glue frame
The case where 41 dark space blocked and formed.
It should be noted that in other embodiments of the present invention, catoptric arrangement can also be other structures, and light can be by setting
The catoptric arrangement being placed on the first surface in groove and third surface is reflected and is transmitted in a groove, the present invention to this not one by one
It repeats.
Fig. 7 is a kind of structural schematic diagram of the first sub- glue frame in backlight module described in Fig. 4, with reference to Fig. 1, Fig. 4 and Fig. 7,
Optionally, wherein the catoptric arrangement 60 on first surface 51 is located at third surface in the upright projection of 31 place plane of light guide plate
Two neighboring catoptric arrangement 60 on 51 is between the upright projection of 31 place plane of light guide plate.
Specifically, the catoptric arrangement 60 on first surface 51 is located at third table in the upright projection of 31 place plane of light guide plate
Two neighboring catoptric arrangement 60 on face 51 is between the upright projection of 31 place plane of light guide plate, correspondingly, third surface 53
On catoptric arrangement 60 be located at the two neighboring catoptric arrangement on first surface 51 in the upright projection of 31 place plane of light guide plate
60 between the upright projection of 31 place plane of light guide plate, i.e., the catoptric arrangement 60 on first surface 51 is put down where light guide plate 31
The catoptric arrangement 60 in upright projection and third surface 53 on face light guide plate 31 upright projection in the plane mutually hand over
For setting, light can be reflected and be transmitted in groove 50 by the catoptric arrangement 60 on first surface 51 and third surface 53.Example
Such as, it is reflected on the catoptric arrangement 60 that light is irradiated on first surface 51, reflexes to the catoptric arrangement on third surface 53
It is reflected, is reflexed on the catoptric arrangement 60 on first surface 51 again again on 60, so that light can be in groove 50
Reflection and transmission.
It continues to refer to figure 1, Fig. 4 and Fig. 7, optionally, wherein between the two neighboring catoptric arrangement 60 on first surface 51
Distance be h1, the distance between two neighboring catoptric arrangement 60 on third surface 53 is h2；Wherein,
H≤h1≤1.5H, H≤h2≤1.5H.
Specifically, the length of the second intersection 55 is H, the distance between the two neighboring catoptric arrangement 60 on first surface 51
For h1, H≤h1≤1.5H；The distance between two neighboring catoptric arrangement 60 on third surface 53 be h2, H≤h2≤1.5H,
Such structure be conducive to light by the catoptric arrangement 60 on first surface 51 and third surface 53 reflect in groove 50 with
Transmission.As h1 < H, h2 < H, the catoptric arrangement 60 being arranged on first surface 51 and third surface 53 is more, increases production
Cost；As h1 > 1.5H, h2 > 1.5H, the distance between two neighboring catoptric arrangement 60 on first surface 51, third table
The distance between two neighboring catoptric arrangement 60 on face 53 is excessive, is unfavorable for light in first surface 51 and third surface 53
On catoptric arrangement 60 reflect and transmit in groove 50.
Fig. 8 be in Fig. 1 backlight module along B-B ' a kind of the schematic diagram of the section structure, with reference to Fig. 1 and Fig. 8, optionally,
In, output optical zone AA includes the second edge A3 being connected with first edge A2, and light source assembly 32 is located at light guide plate 31 and the second side
Edge A3 adjacent side.
Specifically, backlight module provided in this embodiment is side formula backlight module, light source assembly 32 is located at light guide plate 31
The side adjacent with second edge A3, in other embodiments of the present invention, light source assembly 32 may be located on light guide plate 31 and go out
Between other edges of light area AA, the present invention does not repeat one by one.
Fig. 9 is that backlight module optionally, is carried on the back along another the schematic diagram of the section structure of A-A ' with reference to Fig. 1 and Fig. 9 in Fig. 1
Optical mode group further includes the metal frame 70 positioned at non-light-emitting area NA, and metal frame 70 includes bottom plate 71 and the edge for being disposed around bottom plate 71
Side plate 72；
Glue frame 40 is arranged around side plate 72 close to the surface of 31 side of light guide plate.
Specifically, backlight module can also include metal frame 70, metal frame 70 has certain rigidity, and glue frame 40 surrounds side
Plate 72 is arranged close to the surface of 31 side of light guide plate, and glue frame 40 is entrenched in metal frame 70, light guide plate 31, light source assembly 32 and back
In the accommodating space that other structures in optical mode group can be located at glue frame 40 and metal frame 70 is formed, the metal frame 70 when by external force
Further protect the structure in backlight module.
With reference to Fig. 1 and Fig. 9, optionally, backlight module further includes optical diaphragm 33 and bottom reflection piece 34, and light guide plate 31
Between optical diaphragm 33 and bottom reflection piece 34；
Bottom reflection piece 34, light guide plate 31 and optical diaphragm 33 are equipped with second in the position for corresponding to the first notch 20 and lack
Mouthful, the second notch is identical as the shape of the first notch 20.
Specifically, backlight module can also include bottom reflection piece 34 and optical diaphragm 33.Light guide plate 31 is located at optical film
Between piece 33 and bottom reflection piece 34, the light that bottom reflection piece 34 is used to light source assembly 32 being irradiated to 31 bottom surface of light guide plate is anti-
It injects inside light guide plate 31.Optical diaphragm 33 is located on the light-emitting surface of light guide plate 31, and optical diaphragm 33 is, for example, diffusion sheet, prism
Piece etc., the quantity of optical diaphragm 33 be it is at least a piece of, the function of each optical diaphragm 33 can be different.Further, bottom reflection
Piece 34, light guide plate 31 and optical diaphragm 33 are additionally provided with the second notch, and the second notch in the position for corresponding to the first notch 20
It is identical as the shape of the first notch 20.
The present embodiment provides a kind of display device, including backlight module and the display panel being oppositely arranged with backlight module,
Wherein, backlight module backlight module provided by the invention；
Display panel is equipped with through-hole or transparent area in the position for corresponding to notch.
Figure 10 and Figure 11 are please referred to, Figure 10 is a kind of planar structure schematic diagram of display device provided by the invention, Figure 11
Be in Figure 10 display device along the schematic diagram of the section structure of C-C '.Display device 1000 includes backlight module 100 and display panel
200.Wherein, backlight module 100 is the backlight module that any of the above-described embodiment of the present invention provides；Display panel 200 can be liquid
LCD panel, including the array substrate 210 being oppositely arranged and color membrane substrates 230, array substrate 210 and color membrane substrates 230 it
Between be provided with liquid crystal layer 220.
The position of the notch 10 in corresponding to backlight module 100 of display panel 200 is equipped with through-hole or transparent area, and notch 10 can
Place electronic component.
Figure 10 and Figure 11 only take the mobile phone as an example, and are illustrated to display device 1000, it is to be understood that the present invention is implemented
The display device that example provides, can be other display devices having a display function such as computer, TV, display device for mounting on vehicle, this
Invention is not specifically limited this.Display device provided in an embodiment of the present invention has backlight mould provided in an embodiment of the present invention
The beneficial effect of group can specifically refer to the various embodiments described above illustrating for backlight module, and the present embodiment is herein no longer
It repeats.
0 and Figure 11 are continued to refer to figure 1, optionally, wherein display device further includes photographing element 300, photographing element 300
In notch 10.
The present embodiment illustratively shows photographing element 300 and is located in notch 10, in other embodiments of the present invention, also
Other signal receiving devices can be placed in notch 10, the present invention does not repeat one by one.
Through the foregoing embodiment it is found that backlight module provided by the invention and display device, at least realizing following has
Beneficial effect:
Non- output optical zone include with the location and shape of the first notch be adapted the first non-output optical zone, the first sub- glue frame it is interior
Side is recessed to form groove away from the direction of output optical zone, the mutually close side table of the medial surface of light guide plate the first sub- glue frame of neutralization
It light first surface in a groove that face is projected and is reflected on third surface, the inside of light guide plate the first sub- glue frame of neutralization
The light portion that the mutually close side surface in face is projected is reflected back light guide plate, improves the region in output optical zone near first edge
The utilization rate of light is effectively relieved in output optical zone what the partial region near first edge was formed due to the first sub- blocking for glue frame
The case where dark space.So that emitting brightness is consistent as far as possible in output optical zone, to improve the display effect of display terminal.
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 (13)
1. a kind of backlight module characterized by comprising
At least one is located at the notch at edge；
Output optical zone, the non-output optical zone around the output optical zone；
The output optical zone includes first edge, the first edge to the output optical zone inner recess formed at least one first lack
Mouthful；
The non-output optical zone includes the first non-output optical zone being adapted with the location and shape of first notch；
Light guide plate and light source assembly positioned at the output optical zone, the light source assembly are located at at least side of the light guide plate, and
Incidence surface of the light-emitting surface of the light source assembly towards the light guide plate；
Glue frame positioned at the non-output optical zone, the glue frame includes the first sub- glue frame positioned at the described first non-output optical zone, described
First sub- glue frame includes the medial surface close to the light guide plate side, and the inside is recessed away from the direction of the output optical zone
Form groove；
The groove includes the first surface being connected, second surface and third surface, and the first surface and the third
Surface is along the both ends for being relatively arranged on the second surface perpendicular to the direction of the light guide plate.
2. backlight module according to claim 1, which is characterized in that further include being set to the first surface and described
Catoptric arrangement on three surfaces.
3. backlight module according to claim 2, which is characterized in that
The first sub- glue frame includes at least one first section, and the intersection in the first surface and first section is first
The intersection in intersection, the second surface and first section is the second intersection, the third surface and first section
Intersection is third intersection, and first section is perpendicular to plane where the light guide plate, and it is perpendicular to the first edge；
Angle between first intersection and second intersection is θ 1, between the third intersection and second intersection
Angle is θ 2；Wherein,
1≤150 ° of 135 °≤θ, 2≤150 ° of 135 °≤θ.
4. backlight module according to claim 3, which is characterized in that
Height of the first sub- glue frame where perpendicular to the light guide plate on the direction of plane is L, second intersection
Length is H；
Wherein, L/2≤H≤2L/3, L > 0.
5. backlight module according to claim 4, which is characterized in that
The catoptric arrangement is triangular prism structure, and the catoptric arrangement is located in the groove.
6. backlight module according to claim 5, which is characterized in that
The catoptric arrangement on the first surface is located at the third table in the upright projection of plane where the light guide plate
The two neighboring catoptric arrangement on face is where the light guide plate between the upright projection of plane.
7. backlight module according to claim 6, which is characterized in that
The distance between two neighboring described catoptric arrangement on the first surface is h1, adjacent two on the third surface
The distance between a described catoptric arrangement is h2；Wherein,
H≤h1≤1.5H, H≤h2≤1.5H.
8. backlight module according to claim 1, which is characterized in that
The catoptric arrangement is the reflecting layer for covering the first surface and the third surface.
9. backlight module according to claim 1, which is characterized in that
The output optical zone includes the second edge being connected with the first edge, the light source assembly be located at the light guide plate and
The adjacent side of the second edge.
10. backlight module according to claim 1, which is characterized in that the backlight module further includes being located at the non-hair
The metal frame in light area, the metal frame include the side plate of bottom plate with the edge for being disposed around the bottom plate；
The glue frame is arranged around the side plate close to the surface of the light guide plate side.
11. backlight module according to claim 1, which is characterized in that the backlight module further includes optical diaphragm and bottom
Portion's reflector plate, the light guide plate is between the optical diaphragm and the bottom reflection piece；
The bottom reflection piece, the light guide plate and the optical diaphragm are equipped with the in the position for corresponding to first notch
Two notches, second notch are identical as the shape of first notch.
12. a kind of display device, which is characterized in that including backlight module and the display surface being oppositely arranged with the backlight module
Plate, wherein the backlight module is backlight module of any of claims 1-11；
The display panel is equipped with through-hole or transparent area in the position for corresponding to the notch.
13. display device according to claim 12, which is characterized in that the display device further includes photographing element, institute
Photographing element is stated to be located in the notch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811636918.XA CN109581746B (en) | 2018-12-29 | 2018-12-29 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636918.XA CN109581746B (en) | 2018-12-29 | 2018-12-29 | Backlight module and display device |
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| CN109581746A true CN109581746A (en) | 2019-04-05 |
| CN109581746B CN109581746B (en) | 2021-04-30 |
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Also Published As
| Publication number | Publication date |
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| CN109581746B (en) | 2021-04-30 |
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