CN105116618B - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN105116618B CN105116618B CN201510661957.5A CN201510661957A CN105116618B CN 105116618 B CN105116618 B CN 105116618B CN 201510661957 A CN201510661957 A CN 201510661957A CN 105116618 B CN105116618 B CN 105116618B
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- CN
- China
- Prior art keywords
- incidence surface
- backlight module
- light source
- backboard
- display device
- 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.)
- Expired - Fee Related
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- 230000003287 optical effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The present invention relates to display technology field, discloses a kind of backlight module and display device, to reduce the width of the frame of display device, realizes the narrow frame design of display device.Wherein backlight module includes：Backboard, the light guide plate in backboard and at least one light source, the one side of light guide plate towards backboard is provided with projection, and projection is provided with incidence surface corresponding with each light source, and light source is arranged on corresponding incidence surface.Above-mentioned backlight module, by setting projection towards the side of backboard in light guide plate so that light source can be located at raised incidence surface side, will not occupy the space on the peripheral direction of light guide plate, i.e., will not additionally increase the length and width of light guide plate.Therefore backlight module provided by the invention, the width of the frame of display device can be reduced, realize the narrow frame design of display device.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of backlight module and display device.
Background technology
With the continuous development of lcd technology, people are to the size and thickness requirement more and more higher of display device, greatly
The size and display device of ultrathin is increasingly the user's favorite.
As shown in figure 1, Fig. 1 is the structural representation of display device of the prior art；Display device of the prior art
Mainly include：Display panel, front frame, backlight module, backlight module generally comprise：Backboard, the glue frame in backboard, positioned at glue
Light guide plate 03, reflector plate, light source and the optical film material of inframe, LED light bar 02 etc., LED light bar is normally at light guide plate extremely
Few side, front frame includes frame 01, as shown in figure 1, the width of frame 01 is W1.
In the prior art, because LED light bar is located at least side of light guide plate, in order to cover LED, it may result in display
The frame of device is wider.
The content of the invention
The invention provides a kind of backlight module and display device, to reduce the width of the frame of display device, realizes
The narrow frame design of display device.
To reach above-mentioned purpose, the present invention provides following technical scheme：
The invention provides a kind of backlight module, including：Backboard, the light guide plate in the backboard and at least one light
Source, the one side of the light guide plate towards the backboard is provided with projection, and the projection is provided with incidence surface corresponding with the light source,
The light source is arranged on the corresponding incidence surface.
Backlight module provided by the invention, the one side passed through in light guide plate towards backboard set raised so that light source can be with
Positioned at the incidence surface side of projection, the space on the peripheral direction of light guide plate will not be occupied, i.e., will not additionally increase the length of light guide plate
Degree and width.
Therefore backlight module provided by the invention, the width of the frame of display device can be reduced, realize the narrow of display device
Frame design.
In some optional embodiments, the number of the light source is two, and the projection is provided with two incidence surfaces, and
The corresponding incidence surface of one light source, two incidence surfaces are oppositely arranged.
In some optional embodiments, the number of the light source is one, and the projection is provided with an incidence surface.
In some optional embodiments, above-mentioned backlight module also includes：It is arranged on a raised side
Reflecting layer, the side where the reflecting layer is oppositely arranged with the raised incidence surface.The setting in reflecting layer can improve
The utilization rate of light.
In some optional embodiments, in the projection：The incidence surface and the one side relative with the incidence surface
Between maximum spacing need to meet following conditions：
D ＞ H × tan60 °, wherein：D is the maximum spacing, H be along on the direction of the bottom surface of the backboard,
The height of the light source.This scope can ensure that the light that light source is sent preferably can be reflected and spread out by light guide plate.
It is described raised to be shaped as rectangular parallelepiped structure in some optional embodiments.
In some optional embodiments, the raised incidence surface and the one side relative with the incidence surface are
Inclined-plane, and the angle of inclination of the incidence surface and the one side relative from the incidence surface is identical, incline direction is different, wherein,
Angle of the angle of inclination between the incidence surface and the bottom surface of backboard, or the one side relative with the incidence surface and backboard
Bottom surface between angle.That is the angle between incidence surface and the bottom surface of the backboard and relative with the incidence surface
Angle simultaneously between the bottom surface of backboard is identical.
In some optional embodiments, the angle of inclination is more than 60 degree and is less than 90 degree.If angle is less than 60 ° or big
In 90 degree, central ray will not be in light guide plate inner total reflection, but be directed through light guide plate.Due to this some light light intensity compared with
Greatly, the uniformity of light guide plate light extraction will be destroyed, and light intensity utilization rate is relatively low.
In some optional embodiments, each light source is LED light bar.
Present invention also offers a kind of display device, including display panel, in addition to the backlight mould described in any of the above-described
Group.Because above-mentioned backlight module reduces the width of the frame of display device, the narrow frame design of display device is realized.It is therefore of the invention
The display device of offer, there is preferable narrow frame display effect.
Brief description of the drawings
Fig. 1 is the structural representation of display device of the prior art；
Fig. 2 is the part-structure schematic diagram of the first backlight module provided in an embodiment of the present invention；
Fig. 3 is that the light of the light guide plate in the backlight module that the present invention implements to provide propagates schematic diagram；
Fig. 4 is the part-structure schematic diagram of second of backlight module provided in an embodiment of the present invention；
Fig. 5 is the part-structure schematic diagram of the third backlight module provided in an embodiment of the present invention.
Reference：
01- frame 02- lamp bars
03- light guide plates
1- light guide plates 11- is raised
111- incidence surface 2- light sources
3- reflecting layer
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in Figures 2 and 3, wherein：Fig. 2 is that the part-structure of the first backlight module provided in an embodiment of the present invention shows
It is intended to；Fig. 3 is that the light of the light guide plate in the backlight module that the present invention implements to provide propagates schematic diagram；
The invention provides a kind of backlight module, including：Backboard, the light guide plate 1 in backboard and at least one light source
2, the one side of light guide plate 1 towards backboard is provided with projection 11, and projection 11 is provided with incidence surface 111 corresponding with light source 2, and light source 2 is set
Corresponding to being placed on incidence surface 111.
Backlight module provided by the invention, by setting projection 11 in one side of the light guide plate 1 towards backboard so that light source 2
The side of incidence surface 111 of projection 11 can be located at, light source 2 is arranged to the incident side of projection 11, the periphery of light guide plate 1 will not be occupied
Space on direction, i.e., it will not additionally increase the length and width of light guide plate 1.
Therefore backlight module provided by the invention, the width of the frame of display device can be reduced, realize the narrow of display device
Frame design.
Such as light guide plate of the prior art is mostly cuboid, raised setting, light source can be placed on to projection
Incidence surface, i.e., it will not additionally increase the length and width of light guide plate, also can reduces the width of the frame of display device.
The specific number of above-mentioned light source 2 can correspond to a light source according to setting is actually needed with an incidence surface,
Multiple light sources can be corresponded to an incidence surface.
In embodiment provided by the invention, a kind of optional embodiment, as shown in Fig. 2 the number of light source 2 is two,
Projection 11 is provided with two incidence surfaces 111, and the corresponding incidence surface 111 of a light source 2, two incidence surfaces 111 are oppositely arranged.
In another optional embodiment, the number of light source 2 is one, and projection 11 is provided with an incidence surface 111.I.e. one
Side enters light.
Further, as shown in figure 5, the part-structure that Fig. 5 is the third backlight module provided in an embodiment of the present invention shows
It is intended to, in order to improve the utilization rate of backlight module inner light source, above-mentioned backlight module also includes：It is arranged at a side of projection 11
On reflecting layer 3, side where reflecting layer 3 is oppositely arranged with raised 11 incidence surface 111.The setting in reflecting layer 3 can carry
The utilization rate of bloom.
The specific material in reflecting layer 3 can be metal material, naturally it is also possible to it is other materials with reflection function, this
In just no longer repeat one by one.
Certainly, raised incidence surface can also be four either three or more than four, and specific number can basis
Backlight module be actually needed and true form determine.
As shown in Fig. 2 in order that the light that light source 2 is sent is obtained, in projection 11：Incidence surface 111 and relative with incidence surface 111
One side between maximum spacing need to meet following conditions：
D ＞ H × tan60 °, wherein：D is maximum spacing, and H is along on the direction of the bottom surface of backboard, the height of light source 2
Degree.This scope can ensure that the light that light source 2 is sent preferably can be reflected and spread out by light guide plate 1.
Above-mentioned raised 11 concrete structure can have a variety of, be not limited to structure shown in the drawings in this programme, such as：It is optional
, projection 11 is shaped as rectangular parallelepiped structure.The projection 11 of this structure is easy to process and made.Optionally, as shown in figure 4,
Fig. 4 be second of backlight module provided in an embodiment of the present invention part-structure schematic diagram, projection 11 incidence surface 111 and with
The relative one side of incidence surface 111 is inclined-plane, and the angle of inclination phase of incidence surface 111 and the one side relative with incidence surface 111
Same, incline direction difference.Wherein, angle of the angle of inclination between incidence surface and the bottom surface of backboard, or it is relative with incidence surface
The simultaneously angle between the bottom surface of backboard.That is the angle between incidence surface and the bottom surface of backboard and relative with incidence surface
One side it is identical with the angle between the bottom surface of backboard.
In preferable embodiment, angle of inclination a is more than 60 degree and is less than 90 degree.If angle is less than 60 ° or more than 90 degree, in
Heart light will not be in the inner total reflection of light guide plate 1, but be directed through light guide plate 1., will be broken because this some light light intensity is larger
The uniformity of the light extraction of bad light guide plate 1, and light intensity utilization rate is relatively low.
Above-mentioned angle a is more than 60 degree and is less than 90 degree, therefore angle can be：65 degree, 70 degree, 75 degree, 80 degree, 82 degree, 85 degree
Deng just no longer repeating one by one here.
Above-mentioned each light source 2 is LED light bar.Certainly, each light source 2 is not limited to LED light bar, or other to have
The part of light function, is just no longer repeated one by one here.
Present invention also offers a kind of display device, including display panel, in addition to the backlight mould described in any of the above-described
Group.Because above-mentioned backlight module reduces the width of the frame of display device, the narrow frame design of display device is realized.It is therefore of the invention
The display device of offer, there is preferable narrow frame display effect.
The display device can be note-book computer display screen, Electronic Paper, liquid crystal display, LCD TV, DPF,
Any product or part with display function such as mobile phone, tablet personal computer.
Obviously, those skilled in the art can carry out various changes and modification without departing from this hair to the embodiment of the present invention
Bright spirit and scope.So, if these modifications and variations of the present invention belong to the claims in the present invention and its equivalent technologies
Within the scope of, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
1. a kind of backlight module, including：Backboard, the light guide plate in the backboard and at least one light source, it is characterised in that
The one side of the light guide plate towards the backboard is provided with projection, and it is described it is raised be provided with it is corresponding with each light source enter light
Face, the light source are arranged on the corresponding incidence surface, in the projection：The incidence surface and relative with the incidence surface
Maximum spacing between simultaneously need to meet following conditions：
d>H × tan60 °, wherein：D is the maximum spacing, and H is along on the direction of the bottom surface of the backboard, the light
The height in source.
2. backlight module according to claim 1, it is characterised in that the number of the light source is two, and the projection is set
There are two incidence surfaces, and the corresponding incidence surface of a light source, two incidence surfaces are oppositely arranged.
3. backlight module according to claim 1, it is characterised in that the number of the light source is one, and the projection is set
There is an incidence surface.
4. backlight module according to claim 3, it is characterised in that also include：It is arranged at a raised side
On reflecting layer, the side where the reflecting layer is oppositely arranged with the raised incidence surface.
5. according to the backlight module described in any one of Claims 1 to 4, it is characterised in that described raised to be shaped as cuboid
Structure.
6. according to the backlight module described in any one of Claims 1 to 4, it is characterised in that the raised incidence surface and with
The relative one side of the incidence surface is inclined-plane, and the angle of inclination of the incidence surface and the one side relative with the incidence surface
It is identical, incline direction is different, wherein, angle of the angle of inclination between the incidence surface and the bottom surface of backboard, or with institute
State the angle between the relative one side of incidence surface and the bottom surface of backboard.
7. backlight module according to claim 6, it is characterised in that the angle of inclination is more than 60 degree and is less than 90 degree.
8. backlight module according to claim 1, it is characterised in that each light source is LED light bar.
9. a kind of display device, including display panel, it is characterised in that also include the back of the body as described in any one of claim 1~8
Optical mode group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661957.5A CN105116618B (en) | 2015-10-14 | 2015-10-14 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661957.5A CN105116618B (en) | 2015-10-14 | 2015-10-14 | Backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105116618A CN105116618A (en) | 2015-12-02 |
| CN105116618B true CN105116618B (en) | 2018-01-23 |
Family
ID=54664644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510661957.5A Expired - Fee Related CN105116618B (en) | 2015-10-14 | 2015-10-14 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105116618B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107501A (en) * | 2017-12-06 | 2018-06-01 | 许江珂 | A kind of convex laser-activated liquid crystal cells display light guide plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000131531A (en) * | 1998-10-27 | 2000-05-12 | Nippon Denyo | Light guide plate |
| TW200938909A (en) * | 2009-03-13 | 2009-09-16 | Global Lighting Technologies Taiwan Inc | Section light-guide structure of light-guide plate |
| CN202025105U (en) * | 2011-04-02 | 2011-11-02 | 深圳市华星光电技术有限公司 | Light guide panel and liquid crystal display module |
| CN102287683A (en) * | 2010-06-15 | 2011-12-21 | Lg伊诺特有限公司 | Backlight unit and display device having the same |
| CN102840510A (en) * | 2011-06-24 | 2012-12-26 | Lg伊诺特有限公司 | Backlight unit and display apparatus using the same |
-
2015
- 2015-10-14 CN CN201510661957.5A patent/CN105116618B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000131531A (en) * | 1998-10-27 | 2000-05-12 | Nippon Denyo | Light guide plate |
| TW200938909A (en) * | 2009-03-13 | 2009-09-16 | Global Lighting Technologies Taiwan Inc | Section light-guide structure of light-guide plate |
| CN102287683A (en) * | 2010-06-15 | 2011-12-21 | Lg伊诺特有限公司 | Backlight unit and display device having the same |
| CN202025105U (en) * | 2011-04-02 | 2011-11-02 | 深圳市华星光电技术有限公司 | Light guide panel and liquid crystal display module |
| CN102840510A (en) * | 2011-06-24 | 2012-12-26 | Lg伊诺特有限公司 | Backlight unit and display apparatus using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105116618A (en) | 2015-12-02 |
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Granted publication date: 20180123 |