CN108319074A - Electronic device and its display module, backlight module - Google Patents
Electronic device and its display module, backlight module Download PDFInfo
- Publication number
- CN108319074A CN108319074A CN201810106192.2A CN201810106192A CN108319074A CN 108319074 A CN108319074 A CN 108319074A CN 201810106192 A CN201810106192 A CN 201810106192A CN 108319074 A CN108319074 A CN 108319074A
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- China
- Prior art keywords
- bottom wall
- backlight module
- guide plate
- support element
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Abstract
This application discloses a kind of backlight module, backlight module includes：Back frame, back frame include bottom wall and the side wall with bottom wall bending connection, and bottom wall forms an accommodating space with side wall；Optical module is set on bottom wall and in accommodating space；Flexible PCB is set on the region that bottom wall is not covered by optical module and least partially overlapped with optical module；Light source is set in one side of the flexible PCB far from bottom wall and opposite with the side of optical module towards side wall；Support element is set on light source and/or optical module, is used to support display panel.Disclosed herein as well is a kind of display modules and a kind of electronic device.By the above-mentioned means, can ensure the stability of backlight module support display panel in the case of the width that the non-display area for reducing backlight module occupies.
Description
Technical field
The present invention relates to the backlight technology field of electronic device, more particularly to a kind of electronic device and its display module,
Backlight module.
Background technology
Currently, with the development of science and technology, the electronic devices such as smart mobile phone are increasingly at necessity for people's lives.
Backlight module is the important component of electronic device, and the backlight module of the portable electronic devices such as smart mobile phone is logical at present
Frequently with side entrance back module, i.e., the light that light source is sent out injects light guide plate from light guide plate side, to be electronics through light guide plate
The display panel of device provides backlight, however since the light source of this side entrance back module and some relevant structure needs are set
It sets in the side of light guide plate, therefore, occupies larger non-display area, the realization for being unfavorable for narrow frame and shielding comprehensively, how
Shorten backlight module in the width of non-display area and do not influence the normal display of backlight module and display panel, becomes people
Focus of attention problem.
Invention content
The embodiment of the present application use a technical solution be：A kind of backlight module is provided, which includes：The back of the body
Frame, back frame include bottom wall and the side wall with bottom wall bending connection, and bottom wall forms an accommodating space with side wall；Optical module, setting
In on bottom wall and in accommodating space；Flexible PCB, be set on the region that bottom wall is not covered by optical module and with light
It is least partially overlapped to learn component；Light source is set in one side of the flexible PCB far from bottom wall and with optical module towards side wall
Side it is opposite；Support element is set on light source and/or optical module, is used to support display panel.
The embodiment of the present application use another technical solution be：A kind of display module is provided, which includes aobvious
Show panel and the backlight module for providing backlight for display panel, the above-mentioned backlight module of backlight module.
The embodiment of the present application use another technical solution be：A kind of electronic device is provided, which includes upper
The display module stated.
The advantageous effect of the embodiment of the present application is：The embodiment of the present application by be arranged backlight module include：Back frame, back frame packet
Bottom wall and the side wall with bottom wall bending connection are included, bottom wall forms an accommodating space with side wall；Optical module, be set on bottom wall and
In accommodating space；Flexible PCB, be set on the region that bottom wall is not covered by optical module and with optical module at least
It partly overlaps；Light source is set in one side of the flexible PCB far from bottom wall and opposite with the side of optical module towards side wall；
Support element is set on light source and/or optical module, is used to support display panel, can reduce the non-display of backlight module
In the case of the width that region occupies, ensure the stability of backlight module support display panel.
Description of the drawings
Fig. 1 is the back light module unit structure schematic diagram of the application first embodiment；
Fig. 1 a are the structural schematic diagrams of backlight module in another embodiment of the application；
Fig. 2 is the structural schematic diagram of the application second embodiment backlight module；
Fig. 3 is the part isometric structural schematic diagram of the embodiment of the present application back frame and flexible PCB；
Fig. 4 is the structural schematic diagram of the backlight module of the application 3rd embodiment；
Fig. 5 is the structural schematic diagram of the backlight module of the application fourth embodiment；
Fig. 6 is the decomposition texture schematic diagram of the embodiment of the present application electronic device.
Specific implementation mode
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation describes.It is understood that specific embodiment described herein is only used for explaining the application, rather than the limit to the application
It is fixed.It also should be noted that illustrating only for ease of description, in attached drawing and the relevant part of the application and not all knot
Structure.Based on the embodiment in the application, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall in the protection scope of this application.
Term " first ", " second " in the application etc. be for distinguishing different objects, rather than it is specific suitable for describing
Sequence.In addition, term " comprising " and " having " and their any deformations, it is intended that cover and non-exclusive include.Such as comprising
The step of process of series of steps or unit, method, system, product or equipment are not limited to list or unit, and
It further includes the steps that optionally not listing or unit to be, or further includes optionally for these processes, method, product or equipment
Intrinsic other steps or unit.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Referring to Fig. 1, Fig. 1 is the back light module unit structure schematic diagram of the application first embodiment.In the present embodiment, backlight
Module may include：Back frame 10, optical module 20, light source 30, flexible PCB 40, support element 50, the first bond 60, second
Bond 70 and shading rubber belt 80.
Back frame 10 includes bottom wall 11 and side wall 12.Side wall 12 is connected with the bending of bottom wall 11.Can be specifically that vertical bending connects
It connects.Bottom wall 11 surrounds a box-like accommodating space with side wall 12.
Optionally, bottom wall 11 may include the first bottom wall part 111, the second bottom wall part 112 and interconnecting piece 113.
Interconnecting piece 113 is connected between the first bottom wall part 111 and the second bottom wall part 112.Side wall 12 far from bottom wall 11 one
Hold to the first bottom wall part 111 vertical range be more than the one end of side wall 12 far from bottom wall 11 to the second bottom wall part 112 it is vertical away from
From.In other words, bottom wall 11 formed at the first bottom wall part 111 surrounded by side wall 12, interconnecting piece 113, the first bottom wall part 111 it is recessed
Fall into space.Dented space is a part for accommodating space.
Optical module 20 is located in the accommodating space that bottom wall 11 and side wall 12 surround, and optical module 20 may include reflector plate
21, light guide plate 22 and even optical element 23.
Flexible PCB 40 is set to bottom wall 11 and is not being carried on the back on region that optical module 20 covers and with optical module 20
(transverse direction shown in figure) is least partially overlapped in the width direction of optical mode group.Optionally, flexible PCB 40 is viscous by first
Fitting 60 is bonded in the first bottom wall part 111.First bond 60 can be double faced adhesive tape.In other embodiments, the first bonding
Part 60 or other goos, such as glue layer.Flexible PCB 40 is at least partly accommodated in dented space.
Reflector plate 21 is arranged in the second bottom wall part 112.
22 part of light guide plate is set on reflector plate 21, and light guide plate 22 is not disposed on the part on reflector plate 21 by second
Bond 70 is bonded on the subregion on surface of the flexible PCB 40 far from bottom wall 11.Light guide plate 22 and flexible PCB 40
It is least partially overlapped in the width direction of backlight module.
Light source 30 is arranged in one side of the flexible PCB 40 far from bottom wall 11.Light source 30 and optical module 20 are towards side wall
11 side is opposite.Light source 30 is located at the side of optical module 20.Optionally, light source 30 is located at the side of light guide plate 22, for example,
The incident side of 30 light guide plate 22 of light source.Light source 30 is arranged on the region that flexible PCB 40 is not covered by light guide plate 22, and light
Source 30 is electrically connected with flexible PCB 40.Light source 30 is connect by the circuit on flexible PCB 40 with power supply circuit, so that for
Circuit can be that light source 30 is powered.
Even optical element 23 is set on the subregion of light guide plate 22.Reflector plate 21, light guide plate 22, even optical element 23 are successively
Along the direction setting far from bottom wall 11.For example, as shown, reflector plate 21, light guide plate 22, even optical element 23 from top to bottom successively
It is stacked.
Optionally, surface of the light source 30 far from bottom wall 11 is flushed with surface of the light guide plate 22 far from bottom wall 11.Light source 30 is remote
There is the space for mixed light and heat dissipation between side from light guide plate 22 and side wall 12.Light source 30 can be LED light.
Optionally, even optical element 23 may include the expansion being cascadingly set on surface of the light guide plate 22 far from bottom wall 11
Dissipate film 231, the first bright enhancement film 232 and the second bright enhancement film 233.Even optical element 23 or other structures, the application are implemented
Example does not limit this.
Support element 50 is set on light source 30 and optical module 20, is used to support display panel.Optionally, support element 50 is set
It is placed on light source 30 and is set on the region that light guide plate 22 is not covered by even optical element 23.
Optionally, the side of 30 face away from light guide 22 of light source is flushed with support element 50 backwards to the side of even optical element 23.
Optionally, support element 50 has elasticity and viscosity, for example, support element 50 can be foam rubber.Due to support element 50
With elasticity, therefore there can be certain cushioning effect to display panel when supporting display panel.
Shading rubber belt 80 is set on support element 50, on the subregion of even optical element 23 and to be set to side wall 12 separate
On the end face of bottom wall 11.It is bonding with display panel that support element is further used for backlight module.Since support element 50 has viscosity,
Therefore can be when supporting display panel, so that display panel is passed through shading rubber belt 80, support element 50 and backlight module has fixation
Effect.
Optionally, height of the support element 50 beyond surface of the light guide plate 22 far from bottom wall 11 exceeds more than even optical element 23 leads
The height on surface of the tabula rasa 22 far from bottom wall 11, side wall 12 beyond surface of the light guide plate 22 far from bottom wall 11 height be more than or
Equal to the height that support element 50 exceeds surface of the light guide plate 22 far from bottom wall 12.As shown, support element 50 exceeds light guide plate 22
The height of upper surface is more than the height that even optical element 23 exceeds 22 upper surface of light guide plate.It is supported on support element 50 in display panel
When, since there is support element 50 elasticity, support element 50 to be compressed, support element 50 is exceeded 22 upper surface of light guide plate after compression
Height and the height beyond 22 upper surface of light guide plate of even optical element 23 are substantially flush, and are formed and are supported to stablizing for display panel.
There is preset clearance a, preset clearance a is on the one hand between support element 50 and the end close to each other of even optical element 23
For matching rigging error；On the other hand, in the case of certain cold and hot deformation so that backlight module remains to work normally,
The interference between part will not occur.
Optionally, support element 50 can at least be made in the part on light guide plate 22 of light screening material, to avoid light
The light direct projection that source 30 is sent out leaks out backlight module.
In the present embodiment, by the way that flexible PCB 40 to be arranged between light source and the bottom wall of back frame 10 11 and can make
The region Chong Die with light guide plate 22 of flexible PCB 40 is wider, so as to reduce the width of backlight module non-display area.Into
One step can save the glue frame for supporting flexible PCB 40 since flexible PCB 40 is set on bottom wall 11, can be further
Shorten the width of backlight module non-display area.Herein on basis, further in light source 30 and optical module 20 and light source 30
The carrying display panel that support element 50 can be stablized is set.Further, bottom wall 11 is recessed at the first bottom wall part 111, reduces the back of the body
The thickness of optical mode group.
A is please referred to Fig.1, Fig. 1 a are the structural schematic diagrams of backlight module in another embodiment of the application.
In the present embodiment, shading rubber belt 81 be set on support element 50, on the subregion of even optical element 23, be set to
On the surface of 12 backlight 30 of end face and side wall of the side wall 12 far from bottom wall 11, so as to improve shading rubber belt 81 and the back of the body
The bond area of frame 10, increases the reliability of shading rubber belt 81, furthermore it is also possible to when improving backlight module with other component fixation
Firmness.
Referring to Fig. 2, Fig. 2 is the structural schematic diagram of the application second embodiment backlight module.In the present embodiment, it supports
Surface of the part 51 far from bottom wall 11 is flushed with surface of the even optical element 23 far from bottom wall 11.Support element 51 can be by hard material system
At, such as hard plastic.
In the present embodiment, backlight module may further include third bond 52, and optionally, third bond can be with
For double faced adhesive tape, third bond 52 is arranged between support element 51 and light source 30, and be arranged support element 51 and light guide plate 22 it
Between.Third bond 52 is used to support element 51 being adhered to light source 30 and light guide plate 22.
Optionally, the part that third bond 52 is located at least on light guide plate 22 is made of shading material, so as to keep away
Exempt from the light direct projection that light source 30 is sent out and go out backlight module, it is possible to further which third bond 52 is extended to preset clearance a
It is interior, improve the shaded effect of third bond 52.
Referring to Fig. 3, Fig. 3 is the part isometric structural schematic diagram of the embodiment of the present application back frame and flexible PCB.Upper
It states in each embodiment, opening 121 is equipped at least on the side wall 12 of back frame 10.Flexible PCB 40 is prolonged by the opening 121
It extends to except back frame 10.
Optionally, opening 121 is unclosed in the side far from bottom wall 11, notch is formed, in order to flexible PCB 40
Installation.
Optionally, bottom wall 11 be equipped with 121 openings 111 that are connected to of opening, to avoid flexible PCB 40 by pinch off or
Person's damage causes 40 electric property of flexible PCB bad.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of the backlight module of the application 3rd embodiment.In the present embodiment, it props up
Support member 54 can be only arranged on light source 30.It is possible to further on the region that light guide plate 22 is not covered by even optical element 23
Light shield layer 55 is set, and the light so as to go out backlight module to 30 direct projection of light source blocks.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of the backlight module of the application fourth embodiment.
In the present embodiment, support element 56 can be only arranged on optical module 20.Optionally, support element 56 can only be set
It is placed on the region that light guide plate 22 is not covered by even optical element 23.
Referring to Fig. 6, Fig. 6 is the decomposition texture schematic diagram of the embodiment of the present application electronic device.In the present embodiment, electronics
Device 90 can be smart mobile phone, and in other embodiments, electronic device may be tablet computer, palm PC, intelligent hand
Table etc..
In the present embodiment, electronic device 90 may include include rear shell 91, center 92, display module 93 and cover board
94。
Center 92 is fixedly connected with rear shell 91.
Display module 93 is fixed on center 92.
Display module 93 includes backlight module 931 and display panel 932, and backlight module 93 is used to carry for display panel 932
For backlight.
Display panel 932 can be liquid crystal display panel or other display panels.
Cover board 94 is covered on display module 93.Cover board 94 can be transparent glass cover plate, in non-display area, cover board 94
Can be opaque.For example, cover board 94 is coated with black out ink in non-display area.
It should be understood that the other structures of electronic device 90 can be provided between rear shell 91 and center 92, for example, circuit board
Deng since the application is not related to the improvement to these components, not illustrating herein.
In other embodiments, electronic device 90 can also use other structures, the structure of above-mentioned electronic device 90
Illustrate and the protection domain of non-limiting the application.
The embodiment of the present application by be arranged backlight module include：Back frame, back frame include bottom wall and are connected with bottom wall bending
Side wall, bottom wall form an accommodating space with side wall；Optical module is set on bottom wall and in accommodating space；Flexible circuit
Plate is set on the region that bottom wall is not covered by optical module and in accommodating space；It is remote to be set to flexible PCB for light source
From the side in the one side of bottom wall and positioned at optical module；Support element is set on light source and/or optical module, is used to support
Display panel can ensure that backlight module support is aobvious in the case of the width that the non-display area for reducing backlight module occupies
Show the stability of panel.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the claims of the application, every to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field includes similarly in the scope of patent protection of the application.
Claims (11)
1. a kind of backlight module, which is characterized in that the backlight module includes：
Back frame, the back frame include bottom wall and the side wall with bottom wall bending connection, and the bottom wall surrounds one with the side wall
Accommodating space；
Optical module is set on the bottom wall and in the accommodating space；
Flexible PCB, be set on the region that the bottom wall is not covered by the optical module and with the optical module at least
It partly overlaps；
Light source is set in one side of the flexible PCB far from the bottom wall and with the optical module towards the side wall
Side it is opposite；
Support element is set on the light source and/or the optical module, is used to support display panel.
2. backlight module according to claim 1, which is characterized in that the bottom wall includes the first bottom wall part, the second bottom wall
Portion and the bottom wall interconnecting piece being connected between first bottom wall part and second bottom wall part, the side wall is far from the bottom
The vertical range of one end of wall to first bottom wall part is more than the one end of the side wall far from the bottom wall to second bottom
The vertical range of wall portion, the flexible PCB are set in first bottom wall part.
3. backlight module according to claim 1, which is characterized in that the optical module includes along far from the bottom wall side
To the light guide plate and even optical element set gradually, the support element be set on the light source and be set to the light guide plate not by
On the region of the even optical element covering, the flexible PCB and the light guide plate are least partially overlapped.
4. backlight module according to claim 3, which is characterized in that the light source is backwards to the side of the light guide plate and institute
Support element is stated to flush backwards to the side of the even optical element.
5. backlight module according to claim 3, which is characterized in that surface and institute of the support element far from the bottom wall
Surface of the even optical element far from the bottom wall is stated to flush.
6. backlight module according to claim 3, which is characterized in that the support element has elasticity, the support element super
The height for going out surface of the light guide plate far from the bottom wall is more than the even optical element beyond the light guide plate far from the bottom
The height on the surface of wall, height of the side wall beyond surface of the light guide plate far from the bottom wall are more than or equal to described
Support element exceeds the height on surface of the light guide plate far from the bottom wall.
7. backlight module according to claim 3, which is characterized in that the support element has viscosity, and is used for the back of the body
Optical mode group is bonding with the display panel.
8. backlight module according to claim 7, which is characterized in that the backlight module further comprises shading rubber belt,
The shading rubber belt is set on the support element, on the subregion of the even optical element and to be set to the side wall separate
On the end face of the bottom wall；Alternatively, the shading rubber belt is set on the support element, the subregion of the even optical element
Above, end face and the side wall of the side wall far from the bottom wall are set on the surface of the light source.
9. backlight module according to claim 3, which is characterized in that the backlight module further comprises the first bond
With the second bond, the flexible PCB is adhered to by first connector on the bottom wall, the flexible PCB
It is connected on the light guide plate by second bond.
10. a kind of display module, which is characterized in that the display module includes display panel and for being carried for the display panel
For the backlight module of backlight, the backlight module is backlight module described in any one of claim 1-9.
11. a kind of electronic device, which is characterized in that the electronic device includes display module according to any one of claims 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106192.2A CN108319074B (en) | 2018-01-31 | 2018-01-31 | Electronic device, display assembly and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106192.2A CN108319074B (en) | 2018-01-31 | 2018-01-31 | Electronic device, display assembly and backlight module thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108319074A true CN108319074A (en) | 2018-07-24 |
| CN108319074B CN108319074B (en) | 2020-10-02 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810106192.2A Active CN108319074B (en) | 2018-01-31 | 2018-01-31 | Electronic device, display assembly and backlight module thereof |
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| CN109143686A (en) * | 2018-09-30 | 2019-01-04 | 厦门天马微电子有限公司 | A kind of backlight module, display module and electronic equipment |
| CN110376790A (en) * | 2019-07-15 | 2019-10-25 | Oppo（重庆）智能科技有限公司 | Backlight assembly, display screen and electronic equipment |
| CN111182772A (en) * | 2020-01-22 | 2020-05-19 | 合肥鑫晟光电科技有限公司 | Fixing element, backlight module and display device |
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| CN113138498A (en) * | 2021-04-22 | 2021-07-20 | 武汉华星光电技术有限公司 | Display module |
| CN113900301A (en) * | 2021-09-24 | 2022-01-07 | 佛山市国星光电股份有限公司 | Light source module and backlight display module |
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| CN111182772A (en) * | 2020-01-22 | 2020-05-19 | 合肥鑫晟光电科技有限公司 | Fixing element, backlight module and display device |
| CN111182772B (en) * | 2020-01-22 | 2021-08-27 | 合肥鑫晟光电科技有限公司 | Fixing element, backlight module and display device |
| CN113138498A (en) * | 2021-04-22 | 2021-07-20 | 武汉华星光电技术有限公司 | Display module |
| CN113138498B (en) * | 2021-04-22 | 2023-10-31 | 武汉华星光电技术有限公司 | display module |
| CN113900301A (en) * | 2021-09-24 | 2022-01-07 | 佛山市国星光电股份有限公司 | Light source module and backlight display module |
| US11927848B2 (en) | 2021-09-24 | 2024-03-12 | Foshan Nationstar Optoelectronics Co., Ltd. | Light source module and backlight display module |
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| CN108319074B (en) | 2020-10-02 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant before: Guangdong Opel Mobile Communications Co., Ltd. |
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