CN208384297U - Backlight module, display device and electronic equipment - Google Patents
Backlight module, display device and electronic equipment Download PDFInfo
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- CN208384297U CN208384297U CN201820192784.6U CN201820192784U CN208384297U CN 208384297 U CN208384297 U CN 208384297U CN 201820192784 U CN201820192784 U CN 201820192784U CN 208384297 U CN208384297 U CN 208384297U
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims 2
- 239000010408 film Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001821 foam rubber Polymers 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
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Abstract
The embodiment of the present application provides a kind of backlight module, including light guide plate, light source assembly and the first diffusion barrier, lateral emitting of the light source assembly towards light guide plate, first diffusion barrier is set on the second face of light guide plate, and first diffusion barrier close to light source assembly, the first diffusion barrier is used to light source assembly being incident to the position that the light on itself is diffused into the separate light source assembly in the first face.Backlight module provided by the embodiments of the present application on the second face of light guide plate by being arranged close to the first diffusion barrier of light source assembly, and the light for launching light source assembly is after being irradiated on the first diffusion barrier, light can be diffused on the position on the first face far from light source assembly by the first diffusion barrier, enhance the light intensity of the position on the first face far from light source assembly, balanced position of first face by close to sources and the brightness far from light source.The embodiment of the present application also provides a kind of display device and electronic equipments.
Description
Technical field
This application involves a kind of electronic equipment field more particularly to a kind of backlight modules, display device and electronic equipment.
Background technique
In the prior art, in order to realize the display backlight function of electronic equipment, usually on a side of electronic equipment
Illuminating source component is set, display backlight function is then realized by the display area that light guide plate is directed at electronic equipment.With
The increase of the display size of electronic equipment at present causes the luminance difference on the display area of electronic equipment can be more obvious, influences
Whole display effect.
Utility model content
This application provides a kind of backlight module of uniform in light emission, display device and electronic equipments.
On the one hand, the embodiment of the present application provides a kind of backlight module, including light guide plate, light source assembly and the first diffusion
Film, the light guide plate have the first face being disposed opposite to each other and the second face and are connected between first face and second face
Side, for the light source assembly towards the lateral emitting of the light guide plate, first diffusion barrier is set to the light guide plate
On second face, and first diffusion barrier, close to the light source assembly, first diffusion barrier is for entering the light source assembly
The light being incident upon on itself is diffused on the position far from the light source assembly in first face.
On the other hand, the embodiment of the present application also provides a kind of display device, the display device include display panel and
Backlight module, the display panel are laminated on the first face of the light guide plate, the display panel have display area and with
The non-display area of the display area connection, the non-display area cover the light source assembly and first diffusion barrier,
First diffusion barrier is diffused into the display area for the light source assembly to be incident to the light on itself.
In another aspect, the electronic equipment includes display device the embodiment of the present application also provides a kind of electronic equipment.
Backlight module provided by the embodiments of the present application on the second face of light guide plate by being arranged close to the of light source assembly
One diffusion barrier, and the light that light source assembly is launched, after being irradiated on the first diffusion barrier, the first diffusion barrier can be by light
Line is diffused on the position on the first face far from light source assembly, enhances the light intensity of the position on the first face far from light source assembly,
The first face weighed by the position of close to sources and the brightness of separate light source, to provide a kind of backlight module of uniform in light emission.
The above-mentioned backlight module of display device and electronic apparatus application provided by the embodiments of the present application, goes out to provide one kind
The uniform display device of light and electronic equipment.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the application, general for this field
For logical technical staff, without any creative labor, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of schematic diagram for display device that the embodiment of the present application one provides；
Fig. 2 is the ray plot of the display device in Fig. 1；
Fig. 3 is the schematic diagram of the first diffusion layer and reflecting plate relative position in Fig. 1；
Fig. 4 is a kind of schematic diagram for display device that the embodiment of the present application two provides；
Fig. 5 is a kind of schematic diagram for display device that the embodiment of the present application three provides；
Fig. 6 is the schematic diagram of one of Fig. 5 bracket；
Fig. 7 is the schematic diagram of another bracket in Fig. 5；
Fig. 8 is the schematic diagram of another bracket in Fig. 5；
Fig. 9 is the schematic diagram of the shading glue in Fig. 5；
Figure 10 is the schematic diagram of the light guide plate and bracket in Fig. 5；
Figure 11 is the schematic diagram of electronic equipment provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear
Chu is fully described by.
It is with reference to the accompanying drawing and specific real in order to be more clearly understood that the above objects, features, and advantages of the application
Mode is applied the application is described in detail.It should be noted that in the absence of conflict, presently filed embodiment and reality
The feature applied in mode can be combined with each other.
Many details are explained in the following description in order to fully understand the application, described embodiment
Only a part of embodiment of the application, rather than whole embodiments.Based on the embodiment in the application, this field
Those of ordinary skill's every other embodiment obtained without making creative work belongs to the application guarantor
The range of shield.
In addition, the explanation of following embodiment is referred to the additional illustration, the spy that can be used to implement to illustrate the application
Determine embodiment.The direction term being previously mentioned in the application, for example, " width ", " length ", " X to ", " Y-direction ", " Z-direction " etc., are only
With reference to the direction of annexed drawings, therefore, the direction term used be in order to it is more preferable, be illustrated more clearly that and understand the application, and
It is not to indicate or imply signified device or element to must have a particular orientation, be constructed and operated in a specific orientation, therefore
It should not be understood as the limitation to the application.Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " are answered
It is interpreted broadly, for example, it may be fixedly connected, is also possible to detachably connected, or is integrally connected；It can be machinery
Connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For
For those skilled in the art, it can understand that the tool of above-mentioned term in this application illustrates body meaning with concrete condition.
Fig. 1 is please referred to, the embodiment of the present application one provides a kind of display device 100, which includes display panel
2 and backlight module 1.The backlight module 1 is set to the lower section of display panel 2, for providing backlight for display panel 2.
As shown in Figure 1, backlight module 1 includes light guide plate 12, light source assembly 11 and the first diffusion barrier 13, the light guide plate 12
With the first face F1 and the second face F2 that are disposed opposite to each other and the side being connected between the first face F1 and the second face F2
The side R1 of R1, the light source assembly 11 towards the light guide plate 12 shine, and first diffusion barrier 13 is set to the leaded light
On second face F2 of plate 12, and first diffusion barrier 13, close to the light source assembly 11, first diffusion barrier 13 is used for will
The light source assembly 11 is incident to the position far from the light source assembly 11 that the light on itself is diffused into the first face F1
On.
For ease of description, the length extending direction of the first face F1 is defined as X to by the first face F1 to the second face F2's
Direction definition is Y-direction, both perpendicular to X to the definition with Y-direction be Z-direction.
In some embodiments, Fig. 1 is please referred to, light guide plate 12 is translucent plate member, and substantially rectangular-shaped in length, light guide plate 12 is used
For light transmission.Wherein, the light of light source assembly 11 has some light and reaches on the second face F2 after side R1 is incident,
Light on second face F2 can occur to reflect and be incident upon in turn the first face F1, and form light source assembly 11 goes out light.Certainly, at it
In its embodiment, the light guide plate 12 may be arranged as thin slice of cylinder or other shapes, etc..
In some embodiments, please refer to Fig. 1, light source assembly 11 and the light guide plate 12 along X to being arranged side by side, and light
On a side of the side R1 of light guide plate 12, the light of light source assembly 11 can be incident on from side R1 leads source component 11
In tabula rasa 12.It should be understood that light guide plate 12 is stronger close to the region light of light source assembly 11, light guide plate 12 is far from light source assembly
11 region light is weaker.
In some embodiments, Fig. 1 is please referred to, first diffusion barrier 13 is set to light guide plate 12 close to light source assembly 11
The second face F2 on.First diffusion barrier 13 has mini porous structures, which can correct the light for reaching itself
The diffusion angle of line, i.e., so that the light radiation area for penetrating the light on the first diffusion barrier 13 increases, so that itself will be incident to
On light be diffused on the position far from light source assembly 11, reduce light guide plate 12 close to the bright of the region of light source assembly 11
Degree, increases the brightness in region of the light guide plate 12 far from light source assembly 11.Certainly, in other embodiments, first diffusion
The polaroid that film 13 can also be made of different angle forms.
Referring to figure 2., the ray plot of backlight module 1 is as follows: the light that light source assembly 11 emits passes through light guide plate 12
Side R1 enters light guide plate 12, and some light can reach the second face F2, the position of the first diffusion barrier 13 is provided on the second face F2
Light is diffused on the position far from light source assembly 11 of the first face F1 by the first diffusion barrier 13.
To in the application, by the first diffusion for being arranged close to light source assembly 11 on the second face F2 of light guide plate 12
Film 13, and the light that light source assembly 11 is launched is after being irradiated on the first diffusion barrier 13, the first diffusion barrier 13 can will
Light is diffused on the position on the first face F1 far from light source assembly 11, enhances the position on the first face F1 far from light source assembly 11
Light intensity, balanced position of the first face F1 by close to sources and the brightness far from light source, to provide a kind of uniform in light emission
Backlight module 1.
It should be understood that please referring to Fig. 1, the partial region of the second face F2 is Chong Die with first diffusion barrier 13.This
In embodiment, the first face F1 in X to length be greater than the first diffusion barrier 13 in X to length, i.e. the first diffusion barrier 13 is set to
The stronger position of light intensity spreads out light on light guide plate 12, and the first face F1 of light guide plate 12 can also be corresponded to and be arranged it
Its component (such as reflecting element).
In one embodiment, Fig. 1, a side of first diffusion barrier 13 and the side of the light guide plate 12 are please referred to
R1 is concordant, so that the first diffusion barrier 13 is also able to carry out diffusion to the light for the junction for falling in the first face F1 and side R1, into
One step improves the reliability of backlight module 1.Certainly, in other embodiments, a side of the first diffusion barrier 13 can be with
With the side R1 of light guide plate 12 along X to being provided with gap.
Further, Fig. 1 is please referred to, the backlight module 1 further includes reflecting plate 14, and the reflecting plate 14 is set to described
On second face F2, and the reflecting plate 14 and first diffusion barrier 13 are arranged side by side.Specifically, reflecting plate 14 will be will be incident upon
The light of itself is on certain angle of reflection to the first face F1.
In one embodiment, Fig. 1 and Fig. 3 are please referred to, the reflecting plate 14 is more separate compared with first diffusion barrier 13
The light source assembly 11.Specifically, the first diffusion barrier 13 and reflecting plate 14 are successively set to institute to arrangement along the X of light guide plate 12
It states on the second face F2 of light guide plate 12.First diffusion barrier 13 is identical along the size of Z-direction as the second face F2 along the size of Z-direction；
First diffusion barrier 13 is identical along the size of Z-direction as the second face F2 along the size of Z-direction, and the light close to light source assembly 11 arrives first
It is spread out up on the first diffusion barrier 13, and then by the first diffusion barrier 13, the light far from light source assembly 11 reaches reflecting plate 14
On, and then by reflecting plate 14 on certain angle of reflection to the first face F1.Certainly, in other embodiments, reflecting plate 14
Can also with first diffusion barrier 13 along Z-direction be arranged side by side, and reflecting plate 14 along X to length and the second face F2 along
X to length it is identical, i.e., the light close to light source assembly 11 have part can be spread out by the first diffusion barrier 13, some light
It can be reflected away by reflecting plate 14.
It should be understood that referring to figure 3., between the reflecting plate 14 and first diffusion barrier 13 between be separated with pre-determined distance
D1.Reflecting plate 14 and the first diffusion barrier 13 form gap to pre-determined distance is arranged at intervals with along X, and the gap is as other components
Such as bracket with, the first diffusion barrier 13, reflecting plate 14 and light guide plate 12 assemble when reserved gap, prevent 13 He of the first diffusion barrier
Reflecting plate 14 interferes during installation, improves the reliability of backlight module 1.Certainly, in other embodiments, reflecting plate 14 with
First diffusion barrier 13 is spliced to form structure identical with the second face F2 size, i.e., has no between reflecting plate 14 and the first diffusion barrier 13
The second face F2 is completely covered in gap, the structure that the two is formed.
Further, Fig. 1 is please referred to, the light source assembly 11 is closely arranged with the side R1, so that light source assembly 11
Light directly enter to inject light guide plate 12 from side R1, preferably guarantee light propagate path.Certainly, in other embodiments
In, distance, such as 2 millimeters can be separated between the light source assembly 11 and side R1 between.
It should be understood that please referring to Fig. 1, the backlight module 1 further includes at least one anti-reflection film 15, it is described at least one
Anti-reflection film 15 is set on the first face F1 of the light guide plate 12, the light that the first face F1 for improving the light guide plate 12 is issued
The transmitance of line.Specifically, at least one described anti-reflection film 15 includes lower anti-reflection film 151 and upper anti-reflection film 152, it is anti-reflection under described
Film 151 and the upper anti-reflection film 152 are cascadingly set on the first face F1 of the light guide plate 12.
It should be understood that please referring to Fig. 1, the backlight module 1 further includes bracket 16, and the bracket 16 is located at the leaded light
The side of second face F2 of plate 12, for carrying the light source assembly 11, the light guide plate 12 and the reflecting plate 14.
It should be understood that please referring to Fig. 1, the display panel 2 includes the down polaroid down polaroid for stacking gradually connection
21, film crystal array layer 22, liquid crystal layer 23, filter layer and upper polaroid 25, the down polaroid down polaroid 21 close to
There is the relatively described down polaroid down polaroid 21 to protrude for first face F1 of the light guide plate 12, the film crystal array layer 22
Encapsulation part, the encapsulation part constitutes the non-display area A2.Specifically, the display panel 2 is liquid crystal display panel 2.
The display panel 2 include down polaroid 21, TFT (thin film transistor (TFT)) array layer 22, liquid crystal layer 23, colored filter 24 and
Upper polaroid 25, the down polaroid 21, TFT (thin film transistor (TFT)) array layer 22,23 colored filter 24 of liquid crystal layer and on
Polaroid 25 is cascadingly set on the anti-reflection film 15 of the backlight module 1.
To as second face F2 and the increasing of the light that the light source assembly 11 of backlight module 1 issues by light guide plate 12
After permeable membrane 15 is transmitted through the display panel 2, by the liquid crystal molecule of conducting corresponding in down polaroid 21 and liquid crystal layer 23, then
Filter forming color of light by colored filter 24, to form corresponding colored display picture.
Wherein, referring to figure 2., the display panel 2 includes display area A1 and non-display area A2, the display surface
Plate 2 is located substantially at the display area A1 of display panel 2, and the light source assembly 11 is set to the non-display area of the display panel 2
Domain A2.Display area A1 farther out from light source assembly 11 compared with non-display area A2, conversely, non-display area A2 is apart from light source assembly
11 is relatively close.Corresponding, the first diffusion barrier 13 is located in non-display area A2, the light in non-display area A2 is diffused into aobvious
Show in the A1 of region.Reflecting plate 14 is located in the A1 of display area.
In some embodiments, as shown in Figure 1, the light source assembly 11 includes illuminating part 111,112 and of printed circuit board
Flexible circuit board 113, the illuminating part 111 are set on the printed circuit board 112, and the printed circuit board 112 is electrically connected
In the flexible circuit board 113.
Wherein, the printed circuit board 112 is for carrying illuminating part 111 and providing power supply for the illuminating part 111.Printing
The side R1 facing towards light guide plate 12 that circuit board 112 is connect with illuminating part 111.
In some embodiments, Fig. 1 is please referred to, the illuminating part 111 can be to be embedded in the printed circuit board 112
Luminescence chip, to effectively reduce the length upward along X of light source assembly 11, effectively reduce non-display area A2 along X to
Size.Certainly, in other embodiments, the illuminating part 111 can also be the LED being welded on printed circuit board 112.
Wherein, as shown in Figure 1, the flexible circuit board 113 is for establishing the printed circuit board 112 and other function mould
The connection of block such as mainboard is controlled with the power supply control etc. for realizing illuminating part 111.113 part of flexible circuit board with it is described
The second face F2 stacking connection of light guide plate 12 is the second face that the flexible circuit board 113 extends partially into the light guide plate 12
F2, that is, the second face F2 for extending to the light guide plate 12 are provided with the region of the first diffusion barrier 13, i.e. 13 part of the first diffusion barrier
It is folded between flexible circuit board 113 and the second face F2 of light guide plate 12.
Lower section by the way that flexible circuit board 113 to be set to light guide plate 12 is to avoid flexible circuit board 113 from setting on the second face F2
To the influence of the emergent ray of light guide plate 12 when being placed in i.e. the first face F1 in top of light guide plate 12, the knot of backlight module 1 is optimized
Structure further increases the reliability of backlight module 1.
Backlight module 1 is set to the lower section of display panel 2 by display device 100 provided by the embodiments of the present application, by
It is arranged close to the first diffusion barrier 13 of light source assembly 11 on second face F2 of light guide plate 12, and light source assembly 11 is launched
After being irradiated on the first diffusion barrier 13, light can be diffused on the first face F1 far from light source group light by the first diffusion barrier 13
On the position of part 11, the light intensity of the upper position far from light source assembly 11 the first face F1 of enhancing, balanced first face F1 is by close to sources
Position and far from light source brightness, to provide a kind of display device 100 of uniform in light emission.
Referring to figure 4., a kind of display device 200 provided for the embodiment of the present application two, mentions with the embodiment of the present application one
The display device 100 of confession is essentially identical, and difference essentially consists in, and the backlight module 1 further includes the second diffusion barrier 17, institute
It states the second diffusion barrier 17 to be set on the first face F1, second diffusion barrier 17 and the flexible circuit board 113 are in described
Orthographic projection region on first face F1 of light guide plate 12 partly overlaps.
Second diffusion barrier 17 is for being further diffused the light of the first face F1 outgoing, to make to obtain
Light up to display panel 2 is more uniform.
In the present embodiment, the second diffusion barrier 17 be set to the anti-reflection film 15 and the light guide plate 12 the first face F1 it
Between, second diffusion barrier 17 and the flexible circuit board 113 are in the orthographic projection region on the first face F1 of the light guide plate 12
Partly overlap i.e. described second diffusion barrier 17 and flexible circuit board 113 along X to overlapping, compare 17 He of the second diffusion barrier
The flexible circuit board 113 is reduced in X to size arranged side by side, and the structure of display device 200 is optimized.Light source group
The light that part 11 emits enters light guide plate 12 by the side R1 of light guide plate 12, and some light can reach the second face F2, the second face F2
On be provided with the position of the first diffusion barrier 13 by the first diffusion barrier 13 by light be diffused into the first face F1 far from light source assembly
On 11 position, it can further obtain diffuseing to form area source if portions incident to the light of the second diffusion barrier 17.
In one embodiment, referring to figure 4., the second face F2, and the second diffusion barrier 17 is completely covered in second diffusion barrier 17
Extend a part close to the side of light source assembly 11 to be carried on light source assembly 11.Certainly, in other embodiments, please refer to
Fig. 4,17 part of the second diffusion barrier covers the second face F2, and the second diffusion barrier 17 extends close to the side of light source assembly 11
A part is carried on light source assembly 11.
Referring to figure 5., a kind of display device 300 provided for the embodiment of the present application three, mentions with the embodiment of the present application two
The display device 100 of confession is essentially identical, and difference essentially consists in the difference of the structure of flexible circuit board 113, the flexibility
Circuit board 113 has the first connecting portion 1131 and second connecting portion 1132 of bending connection, 1131 part of first connecting portion
Be laminated and connect with the second face F2 of the light guide plate 12, the second connecting portion 1132 away from the light guide plate 12 second
The direction of face F2 extends, and the second connecting portion 1132 is fitted and connected in the printed circuit board 112.
In the present embodiment, referring to figure 5., 113 bent of flexible circuit board is at L-shaped.The first connecting portion 1131
Printed circuit board 112 and illuminating part 111 are carried, and first connecting portion 1131 extends simultaneously towards the direction close to the light guide plate 12
Part be attached on the second face F2 of light guide plate 12, wherein the first diffusion barrier 13 be located at the light guide plate 12 the second face F2 and
Between the first connecting portion 1131 of the flexible circuit board 113.The second connecting portion 1132, which is equipped with, is electrically connected the printing electricity
The pad 1132a of road plate 112.The pad 1132a covers the printed circuit board.The relatively described printing of pad 1132a
The width that circuit board 112 protrudes is greater than the thickness of the first connecting portion 1131, so that the backlight module 1 is parallel described the
The region that backlight can not be provided on the direction F1 on one side further decreases, and the backlight module 1 can provide the transmission region of backlight
Accounting further increases.
It should be understood that the backlight module 1 in the embodiment of the present application one, two, three can also include bracket 16, bracket 16 is used
In carrying light source assembly 11, light guide plate 12 and reflecting plate 14.The bracket 16 includes being laminated in the light guide plate 12 and close
The first plate 161, the bracket 16 of the first face F1 further includes the second plate that relatively described first plate, 161 bending extends
Part 162 and the third plate 163 extended by 162 bending of the second plate.Second plate 162 is close to the light source assembly
11.The third plate 163 is opposite with first plate 161, and covers the light source.
In one embodiment, Fig. 6 is please referred to, the light source assembly 11 and described is completely covered in first plate 161
Light guide plate 12.First plate 161 can be to be adhered on the first diffusion barrier 13 of the light guide plate 12 through adhesive-layer.It is described
It is mutually be bonded between first plate 161 and the printed circuit board 112 of the light source assembly 11.Printing can be adhered to using double-sided adhesive
The region that circuit board 112 is not covered by 113 circuit board of flexible circuit board.I.e. double-sided adhesive can be and the flexible circuit
Plate 113 is side by side.The double-sided adhesive consolidates first plate 161 and the light source assembly 11, it is ensured that the light source assembly 11 exists
The linearity of side R1 arrangement reduces, and improves backlight effect.The setting of third plate 163 is bonded the bubble of the light source assembly 11
Celloidin 18.The foam rubber 18 is adhered on the printed circuit board 112 of the light source assembly 11, realizes the third plate 163
It is firm with the light source assembly 11.Certainly, in other embodiments, bracket 16 may include the first plate 161 and the second plate
At least one plate in part 162.Specifically being respectively as follows: the bracket 16 includes being laminated in the light guide plate 12 and close to described the
The first plate 161 of F1 on one side, first diffusion barrier 13 are adhered on the bracket 16 by adhesive layer 20.Alternatively, described
Bracket 16 further includes opposite the second plate 162 extended by 161 bending of the first plate, and second plate 162 is close to institute
State light source assembly 11.
In one embodiment, mutually be bonded between second plate 162 and the light source assembly 11.Using two-sided gluing
It is connected to printed circuit board 112.And it is located at the region not covered by the second connecting portion 1132 of the flexible circuit board 113.I.e.
The double-sided adhesive can be with the second connecting portion 1132 of 113 circuit board of flexible circuit board side by side.The double-sided adhesive is firm
Second plate 162 and the light source assembly 11, it is ensured that the light source assembly 11 reduces in the linearity that side R1 arranges, and mentions
High backlight effect.
First plate 161, the second plate 162 and third plate 163 have light-blocking performance, first plate 161,
Second plate 162 and third plate 163 coat the light guide plate 12 and the light source assembly 11, prevent the backlight module 1 from leaking
Light.I.e. described first plate 161, the second plate 162 and third plate 163 form the protective shell of the backlight module 1, guarantee institute
State the safety of backlight module 1.
In one embodiment, Fig. 7 is please referred to, it is heavy that first plate 161 is equipped with towards 11 side of light source assembly
Hole 161a, the counterbore 161a and 11 face of light source assembly.The counterbore 161a also with the flexible circuit board 113 just
It is right.First plate 161 is forming convex closure far from 11 side of light source assembly.So that can be accommodated in the counterbore 161a
A part of the light source assembly 11 and a part of the flexible circuit board 113.First plate 161 opens up the counterbore
161a, the region of backlight can not be provided by reducing the backlight module 1 in the parallel first face direction F1, and increasing can mention
For the transmission region accounting of backlight.
In another embodiment, please refer to Fig. 8, first plate 161 is equipped with through-hole 161b, the through-hole 161b with
11 face of light source assembly, the backlight module 1 further include photo-shield strip 19, and the photo-shield strip 19 covers the through-hole 161b.
The through-hole 161b also with 113 face of flexible circuit board.The flexible circuit board 113 is adhered to first diffusion barrier 13
On.By opening up the through-hole 161b in first plate 161, facilitate the light source assembly 11 and the flexible circuit board
113 assemble with the light guide plate 12.
Fig. 8 is please referred to, is first bonded foam rubber 18 on the third plate 163 first；Then by the light source assembly 11
It is adhered in the foam rubber 18 across the through-hole 161b；The flexible circuit board 113 passes through institute with the light source assembly 11
Through-hole 161b is stated, 161 inside of the first plate is stable in；After again, first diffusion barrier 13 is fitted in into light guide plate 12
Second face F2, and the adhesive layer 20 is coated on first diffusion barrier 13, and be provided with the leaded light of the first diffusion barrier 13
Plate 12 is fixed on 161 inside of the first plate；After again, by (second diffusion barrier 17), lower anti-reflection film 151 and upper anti-reflection film
152 are in turn secured on the first face F1 of the light guide plate 12；Finally, the photo-shield strip 19 is covered the through-hole 161b.Institute
It states photo-shield strip 19 and first plate 161 has part and is laminated, and there is part with second plate 162 and be laminated, to increase
Add the fastness of the photo-shield strip 19, and prevents the through-hole 161b light leakage.
Further, Fig. 9 is please referred to, the backlight module 1 further includes shading glue 191, and the shading glue 191 includes first
Light shield layer 1911 and the second light shield layer 1912 extended by 1911 bending of the first light shield layer, 1911 layers of first light shield layer
It is laminated on side of the third plate 163 far from the light source assembly 11, and at least covers the light source assembly 11, described second
Light shield layer 1912 covers second plate 162.
In one embodiment, Fig. 9, orthographic projection and institute of first light shield layer 1911 in the light guide plate 12 are please referred to
Region where stating diffusion barrier coincides.First light shield layer 1911 can not penetrate the light of the light source assembly 11, realize
The encapsulation of the backlight module 1, prevent the light of the light source assembly 11 from the third plate 163 and the light guide plate 12 it
Between reveal.First light shield layer 1911, which forms the backlight module 1, can not provide the region of backlight.First light shield layer
1911 just cover the region where first diffusion barrier 13, can not provide the region of backlight to reduce the backlight module 1
Area.Second light shield layer 1912 coats second plate 162, to increase the shading glue 191 and the bracket 16
Contact area, increase the bracket 16 fastness Nian Jie with exterior part.
Further, referring to Fig. 10, the light guide plate 12 also there is light emission side face R2, the light emission side face R2 to be connected to
It is parallel with the side R1 between the first face F1 and the second face F2.The side R1 of the light guide plate 12 is equipped with the
One positioning region 121, the bracket 16 further include the 4th plate 164 extended by 161 bending of the first plate, the 4th plate
Part 164 is equipped with the second positioning region 165 cooperated with first positioning region 121 close to the side R1.
In present embodiment, the 4th plate 164 side R1 upward to the X of the light guide plate 12 is blocked, anti-leak-stopping
Light.The side R1 is equipped with multiple first positioning regions 121.It is fixed that 4th plate 164 is correspondingly provided with multiple described second
Position portion 165 and multiple first positioning regions 121 cooperate, with guarantee the spacing between the light guide plate 12 and the bracket 16 compared with
It is small, and guarantee that the assembly precision of the light guide plate 12 and the bracket 16 is higher.First positioning region 121 can be groove,
Second positioning region 165 can be boss.Certainly, in other embodiments, first positioning region 121 is also possible to convex
Platform, second positioning region 165 are also possible to groove.
Figure 11 is please referred to, is the structural block diagram of electronic equipment 400, the electronic equipment 400 includes aforementioned any embodiment
The display device 100,200,300.
Wherein, the electronic equipment 400 can be the electronic products such as display, television set, mobile phone, tablet computer.It is described aobvious
Showing device 100,200,300 can be the structure in electronic equipment 400 including backlight module and display panel.
It should be noted that a certain embodiment of the application may only introduce the variation to one or a few components,
When other parts do not introduced or do not introduced there are different modes of texturing in other embodiments, also fit in this embodiment
With.For example, first diffusion barrier 13 can be using any in Fig. 1,4,5,6 when the structure change of light source assembly 11 in Fig. 1,7
Kind mode.
Obviously, the electronic equipment 200 may also include other elements, such as processor, memory etc., due to this
Application improvement is unrelated, therefore is not described herein.
It is the preferred embodiment of the application above, it is noted that for those skilled in the art,
Under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also considered as this Shen
Protection scope please.
Claims (21)
1. a kind of backlight module, which is characterized in that including light guide plate, light source assembly and the first diffusion barrier, the light guide plate has
The first face and the second face that are disposed opposite to each other and the side being connected between first face and second face, the light source group
Towards the lateral emitting of the light guide plate, first diffusion barrier is set on the second face of the light guide plate part, and described
Close to the light source assembly, first diffusion barrier is used to for the light source assembly to be incident to the light on itself to be expanded one diffusion barrier
It is scattered on the position far from the light source assembly in first face.
2. backlight module according to claim 1, which is characterized in that the partial region in second face and described first is expanded
Dissipate film overlapping.
3. backlight module according to claim 2, which is characterized in that led with described a side of first diffusion barrier
The side of tabula rasa is concordant.
4. backlight module according to claim 1, which is characterized in that the backlight module further includes reflecting plate, described anti-
It penetrates plate to be set on second face, and the reflecting plate and first diffusion barrier are arranged side by side.
5. backlight module according to claim 4, which is characterized in that the reflecting plate is more compared with first diffusion barrier
Far from the light source assembly.
6. backlight module according to claim 5, which is characterized in that between the reflecting plate and first diffusion barrier
It is separated with pre-determined distance.
7. according to claim 1 to backlight module described in 6 any one, which is characterized in that the light source assembly and the side
Face is closely arranged.
8. according to claim 1 to backlight module described in 6 any one, which is characterized in that the light source assembly includes shining
Part part, printed circuit board and flexible circuit board, the illuminating part are set on the printed circuit board, the printed circuit board
It is electrically connected on the flexible circuit board, the folded connection of the second surface layer of the flexible circuit board part and the light guide plate.
9. backlight module according to claim 8, which is characterized in that the backlight module further includes the second diffusion barrier, institute
It states the second diffusion barrier to be set on first face, second diffusion barrier and the flexible circuit board are in the of the light guide plate
Orthographic projection region on one side partly overlaps.
10. backlight module according to claim 8, which is characterized in that the flexible circuit board has the of bending connection
The folded connection of second surface layer of one interconnecting piece and second connecting portion, the first connecting portion part and the light guide plate, described second
Interconnecting piece extends away from the direction in the second face of the light guide plate, and the second connecting portion is fitted and connected in the printing
Circuit board.
11. backlight module described in 6 any one of ~ according to claim 1, which is characterized in that the backlight module further includes branch
Frame, the bracket include the first plate for being laminated in the light guide plate and close first face, and first diffusion barrier passes through
Adhesive layer is adhered on the bracket.
12. backlight module according to claim 11, which is characterized in that the bracket further includes opposite by first plate
The second plate that part bending extends, second plate is close to the light source assembly.
13. backlight module according to claim 12, which is characterized in that between first plate and the light source assembly
It is mutually bonded, is set between second plate and the light source assembly mutually be bonded.
14. backlight module according to claim 12, which is characterized in that the bracket further includes being rolled over by second plate
The third plate of curved extension, the third plate is opposite with first plate, and covers the light source.
15. backlight module according to claim 14, which is characterized in that the backlight module further includes shading glue, described
Shading glue includes the first light shield layer and the second light shield layer by the first light shield layer bending extension, the first shading layer stackup
In the third plate far from the light source assembly side, and the light source is at least covered, described in the second light shield layer covering
Second plate.
16. backlight module according to claim 12, which is characterized in that first plate is equipped with through-hole, the through-hole
With the light source face, the backlight module further includes photo-shield strip, and the photo-shield strip covers the through-hole.
17. backlight module according to claim 12, which is characterized in that first plate is set towards the light source side
There are counterbore, the counterbore and the light source face.
18. backlight module according to claim 12, which is characterized in that the light guide plate also has light emission side face, described
Light emission side face is connected between first face and second face, and the light emission side face of the light guide plate is equipped with the first positioning region,
The bracket further includes the 4th plate extended by the first plate bending, the 4th plate close to the light emission side face,
And it is equipped with the second positioning region cooperated with first positioning region.
19. a kind of display device, which is characterized in that the display device includes display panel and claim 1 ~ 18 any one
Backlight module described in, the display panel are laminated on the first face of the light guide plate, and the display panel has display
Region and the non-display area connecting with the display area, the non-display area cover the light source assembly and described first
Diffusion barrier, first diffusion barrier are diffused into the display area for the light source assembly to be incident to the light on itself
On.
20. display device according to claim 19, which is characterized in that the display panel includes stacking gradually connection
Down polaroid, film crystal array layer, liquid crystal layer, filter layer and upper polaroid, the down polaroid is close to the light guide plate
The first face, the film crystal array layer has the encapsulation part of down polaroid protrusion relatively, and the encapsulation part constitutes institute
State non-display area.
21. a kind of electronic equipment, which is characterized in that the electronic equipment includes showing described in 20 any one of claim 19 ~
Showing device.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820192784.6U CN208384297U (en) | 2018-02-01 | 2018-02-01 | Backlight module, display device and electronic equipment |
| PCT/CN2019/073892 WO2019149217A1 (en) | 2018-02-01 | 2019-01-30 | Backlight module, display apparatus, and electronic device |
| EP19746965.3A EP3722869A4 (en) | 2018-02-01 | 2019-01-30 | Backlight module, display apparatus, and electronic device |
| US16/922,562 US11294116B2 (en) | 2018-02-01 | 2020-07-07 | Display device based on diffusion film and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820192784.6U CN208384297U (en) | 2018-02-01 | 2018-02-01 | Backlight module, display device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208384297U true CN208384297U (en) | 2019-01-15 |
Family
ID=64978385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820192784.6U Expired - Fee Related CN208384297U (en) | 2018-02-01 | 2018-02-01 | Backlight module, display device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208384297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108153060A (en) * | 2018-02-01 | 2018-06-12 | 广东欧珀移动通信有限公司 | Backlight module, display device and electronic equipment |
-
2018
- 2018-02-01 CN CN201820192784.6U patent/CN208384297U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108153060A (en) * | 2018-02-01 | 2018-06-12 | 广东欧珀移动通信有限公司 | Backlight module, display device and electronic equipment |
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