CN206301120U - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
- Publication number
- CN206301120U CN206301120U CN201720003125.9U CN201720003125U CN206301120U CN 206301120 U CN206301120 U CN 206301120U CN 201720003125 U CN201720003125 U CN 201720003125U CN 206301120 U CN206301120 U CN 206301120U
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- Prior art keywords
- backlight module
- plate
- top board
- catoptric arrangement
- light
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- 239000000084 colloidal system Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
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Abstract
The utility model provides a kind of backlight module and display device, is related to display technology field, the alignment error for reducing catoptric arrangement.The backlight module includes light guide plate and is arranged at the light source of light guide plate side.Backlight module also includes backboard, and at least one end of backboard is provided with U-shaped holding part, and U-shaped holding part includes the base plate and top board that are oppositely arranged, and the side plate between base plate and top board, wherein, light emission side of the top board near backlight module；Top board is provided with depressed part away from a side surface of base plate.Backlight module also includes catoptric arrangement, and catoptric arrangement includes fixed part and reflecting part, and fixed position is in depressed part；Reflecting part stretches out above-mentioned top board along the direction away from side plate, and is reflected for the emergent ray to light source.The backlight module is used to provide backlight.
Description
Technical field
The utility model is related to display technology field, more particularly to a kind of backlight module and display device.
Background technology
Liquid crystal display (Liquid Crystal Display) mainly includes liquid crystal display panel and is arranged at the liquid
The backlight module of LCD panel incident side.The backlight module includes as shown in Figure 1：Light guide plate 10, it is arranged at light guide plate and enters light
The light source 11 of side, the catoptric arrangement 12 for being arranged at the top of light source 11, and the backboard 13 for housing above-mentioned part.
In the prior art, above-mentioned catoptric arrangement 12 is as shown in figure 1, be assembled in the U-type groove of backboard 13, and be attached at U
Upper edge in type groove.Ideally, after catoptric arrangement 12 is completed with backboard 13, as shown in Figure 2 a, the catoptric arrangement 12
Position in the U-type groove of backboard 13 is placed in the middle.However, due to catoptric arrangement 12 is attached in U-type groove during actual assembled,
Installation site is difficult confirmation, so, easily produces alignment error.For example as shown in Figure 2 b, catoptric arrangement 12 is in light source 11
Bearing of trend on can be offset near the side of backboard 13 left wall.In the case, catoptric arrangement 12 can be with follow-up assembling work
Part (for example moulding frame glue) recurring structure installation site interference in skill so that above-mentioned part is superimposed with catoptric arrangement 12,
And then cause that heaving occur in superposed positions, so as to produce display bad.
Utility model content
Embodiment of the present utility model provides a kind of backlight module and display device, and the installation for reducing catoptric arrangement is missed
Difference.
To reach above-mentioned purpose, embodiment of the present utility model is adopted the following technical scheme that：
The utility model embodiment provides a kind of backlight module, including light guide plate and is arranged at the light guide plate side
Light source, it is characterised in that the backlight module also include backboard, at least one end of the backboard is provided with U-shaped holding part, institute
Stating U-shaped holding part includes the base plate and top board that are oppositely arranged, and the side plate between the base plate and top board；Wherein, institute
State light emission side of the top board near the backlight module；The top board is provided with depressed part away from a side surface of the base plate；Institute
Stating backlight module also includes catoptric arrangement, and the catoptric arrangement includes fixed part and reflecting part, wherein, the fixed position is in institute
State in depressed part；The reflecting part stretches out the top board along the direction away from the side plate, and for the outgoing to the light source
Light is reflected.
Optionally, the depressed area deviates from one end of the side plate, and the depressed part longitudinal cross-section in the top board
Be shaped as L-type, wherein, the longitudinal cross-section is vertical with the exiting surface of the light guide plate.
Optionally, the catoptric arrangement deviates from a side surface of the base plate away from a side surface of base plate with the top board
Concordantly.
Further, the depth of the depressed part is the 45%~55% of the top plate thickness.
Optionally, the width of the depressed part is the 40%~60% of the top board width.
Optionally, backlight module also includes being arranged at the circuit board above the base plate, and the light source is arranged at the electricity
The piece area of road plate, the exiting surface of the light source is close to the distance between side of described light guide plate one end with the circuit board and is
0.6mm~5mm.
Optionally, the circuit board is flexible PCB, and the flexible PCB is provided near one end of the side plate
Balanced structure, the height for balancing the flexible PCB two ends；Wherein, the height of the balanced structure is less than or equal to institute
State the height of light source.
Optionally, above-mentioned backlight module, also including the diffuser plate positioned at the light guide plate exiting surface, the catoptric arrangement position
In the exiting surface of the diffuser plate.
Optionally, the fixed part near the distance between one end and the depressed part of the side plate be less than or equal to
0.3mm。
The utility model embodiment provides a kind of display device, including any one backlight module as described above.
The utility model provides a kind of backlight module and display device, and the backlight module includes light guide plate and is arranged at
The light source of light guide plate side.Backlight module also includes backboard, and at least one end of backboard is provided with U-shaped holding part, U-shaped holding part bag
The base plate and top board being oppositely arranged, and the side plate between base plate and top board are included, U-shaped holding part is used to house the He of light source 11
Light guide plate 10.Above-mentioned top board is provided with depressed part away from a side surface of base plate.Backlight module also includes catoptric arrangement, reflection knot
Structure includes fixed part and reflecting part.Fixation portions is located in depressed part, and reflecting part stretches out top board along the direction away from side plate, and
Reflected for the emergent ray to light source.
In the case, because above-mentioned catoptric arrangement is fixed in depressed part, depressed area deviates from bottom in backboard upper plate
The side of plate, therefore catoptric arrangement is installed on the outside of U-shaped holding part.So, when the backlight module is assembled, either
By being positioned manually attaching catoptric arrangement, or had by marking positioning to attach catoptric arrangement using smelting, and in the prior art
Catoptric arrangement is attached at U-shaped holding part inside and compares, more directly perceived and easy to operate when catoptric arrangement is assembled in into backboard, so that can
To reduce the alignment error of catoptric arrangement.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of backlight module of the prior art；
Ideal mounting position schematic diagrames of Fig. 2 a for the catoptric arrangement in the backlight module shown in Fig. 1 in U-type groove；
Fig. 2 b are a kind of bad schematic diagram of installation site of the catoptric arrangement in the backlight module shown in Fig. 1；
A kind of structural representation of backlight module that Fig. 3 is provided for the utility model embodiment；
Fig. 4 is a kind of schematic shapes of the backboard in the backlight module shown in Fig. 3；
Fig. 5 is another schematic shapes of the backboard in the backlight module shown in Fig. 3；
The structural representation of another backlight module that Fig. 6 is provided for the utility model embodiment；
Fig. 7 is a kind of schematic diagram in the piece area that light source by shown in Fig. 3 is installed on circuit board；
The structural representation of another backlight module that Fig. 8 is provided for the utility model embodiment；
Fig. 9 is a kind of installation relation schematic diagram of the diffuser plate shown in Fig. 8 and catoptric arrangement.
Reference；
01- backlight modules；10- light guide plates；11- light sources；12- catoptric arrangements；13- backboards；130- side plates；131- top boards；
132- base plates；120- fixed parts；121- reflecting parts；14- circuit boards；15- brightening pieces；16- reflector plates；17- adhesive tapes；18- shadings
Adhesive tape；19- diffuser plates；20- balanced structures.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
The utility model embodiment provides a kind of backlight module 01 as shown in Figure 3, and the backlight module 01 includes leaded light
Plate 10, backboard 13 and the light source 11 of the side of light guide plate 10 is arranged at, at least one end of backboard 13 is provided with U-shaped holding part, U
Type holding part includes the top board 131 and base plate 132 that are oppositely arranged, and the side plate 130 between base plate 132 and top board 131,
Wherein, top board 131 is provided with depressed part B away from a side surface of base plate 132.
Wherein, herein, the directional terminology such as " top " and " bottom " is to illustrate the orientation placed relative to the backboard 13 in accompanying drawing
Come what is defined, it should be understood that, these directional terminologies are relative concepts, they be used for relative to description and clarification, its
The Orientation differences placed can be illustrated according to backboard 13 and correspondingly changed.
On this basis, backlight module 01 also includes catoptric arrangement 12, and catoptric arrangement 12 includes fixed part 120 and reflecting part
121.Wherein, as shown in figure 3, fixation portions 120 is located in depressed part B, above-mentioned reflecting part 121 is along away from above-mentioned side plate 130
Direction stretch out above-mentioned top board 131.
It should be noted that the light part that sends of light source 11 can enter in light guide plate 10, and another part can be with
Reflected by above-mentioned catoptric arrangement 12, reflection light is incident to light guide plate 10, so as to improve the emergent ray of light source 11
Utilization rate.The utility model is not limited the material of catoptric arrangement 12.For example, catoptric arrangement 12 can include reflecting plate or
Person's reflective coating.As the lightening development of display device is, it is necessary to make the thickness of backlight module 01 reduce as far as possible.Therefore it is excellent
Choosing, catoptric arrangement 12 can include the less reflective coating of thickness.In the case, catoptric arrangement 12 also needs to include setting
In the colloidal materials layer on reflective coating, so that reflective coating can be fixed on backboard 13.
In sum, the catoptric arrangement 12 can be reflection tape of the thickness range in 0.13~0.15mm or so.This is anti-
Injection band includes above-mentioned reflective coating and colloidal materials layer.Wherein, the material for constituting reflective coating can include white reflective
PET (English：Polyethylene terephthalate, abbreviation PET, Chinese：Polyethylene terephthalate).
In the case, because above-mentioned catoptric arrangement 12 is fixed in depressed part B, depressed part B is located at the top on backboard 13
Plate 131 is away from the side of base plate 132, therefore catoptric arrangement 12 is installed on the outside of U-shaped holding part.So, should in assembling
During backlight module 01, catoptric arrangement 12 either is attached by being positioned manually, or had using smelting and attached by marking positioning
Catoptric arrangement 12, compared with catoptric arrangement 12 in the prior art is attached at U-shaped holding part inside, the back of the body is assembled in by catoptric arrangement 12
It is more directly perceived easy to operate during plate 13, the alignment error of catoptric arrangement 12 can be reduced.
Additionally, above-mentioned backlight module 01 if desired changes catoptric arrangement 12, on the one hand, due to catoptric arrangement in maintenance
12 outsides for being located at U-shaped holding part, it can directly be torn and be changed, therefore changing from the outside of U-shaped holding part
Influence in journey to the opening shape of U-shaped holding part is smaller, reduces the probability that the opening of U-shaped holding part deforms；It is another
Aspect, as shown in figure 1, catoptric arrangement of the prior art 12 is located in U-type groove, after backlight module 01 is using a period of time,
Because the physical action such as falling, clashing into, or the aging action for generating heat, working for a long time by light source 11, easily generation colloid is moved to light source
11 with the contact surface of light guide plate 10 on, the phenomenon for causing brilliant white point bad, catoptric arrangement of the present utility model 12 as shown in figure 3,
Need not be installed in U-shaped holding part, therefore the inside of U-shaped holding part does not have colloid such that it is able to avoid colloid from falling in light source 11
With the phenomenon for causing easily generation light in part brilliant white point on the contact surface of light guide plate 10.Further, in maintenance backlight module 01
When, after removing catoptric arrangement 12, the cull of fixed part 120 can be removed intuitively totally outside U-shaped holding part with solvent, be carried
The high utilization rate that the backboard 13 is used to produce again backlight module 01.
On this basis, the utility model is not limited the position that depressed part B is located on top board 131.For example, can be as
Positioned at the centre position of top board 131 shown in Fig. 4, or the one end of top board 131 away from side plate 130 is located at as shown in Figure 5.However,
When depressed part B is located at the centre position of top board 131, after catoptric arrangement 12 is fixed on into depressed part B, as shown in figure 4, reflection knot
There is segment difference R in structure 12, subsequent technique can be caused to be assembled into top board 131 away from the side of base plate 132 away from the side of base plate 132
The device for coming is sequentially overlapped when on top board 131, and above-mentioned device easily ruptures at segment difference R.It is therefore preferred that depression
Portion B is located at the one end of top board 131 away from side plate 130.In the case, depressed part B longitudinal cross-sections are shaped as L-type, above-mentioned
Longitudinal cross-section is vertical with the exiting surface of light guide plate 10.So, after catoptric arrangement 12 being fixed on into depressed part B, reduce
Segment difference R is stated, above-mentioned subsequent technique can be lowered and be assembled into the probability that the device for coming ruptures.
It is further preferred that as shown in fig. 6, as the depth E of depressed part B and the thickness J of fixation portions 120 equal,
Catoptric arrangement 12 deviates from the side flush of base plate 132 away from the side of base plate 132 with top board 131, so as in top board 131
When other devices are continued to assemble in top, heaving for the device is not resulted in.
On this basis, if as shown in fig. 6, the depth E of depressed part B is tied less than the 45% of the thickness T of top board 131 when reflecting
Structure 12 be fixed on depressed part B, it is necessary to by catoptric arrangement 12 make it is relatively thin, with realize catoptric arrangement 12 away from base plate 132 one
Side, away from the side flush of base plate 132, the technological requirement of catoptric arrangement 12 is made so as to improve with top board 131, and then
Increased the cost of manufacture of backlight module 01.If, more than the 55% of the thickness T of top board 131, depressed part B cannot for the depth E of depressed part B
Play the supporting role of the device to being subsequently assembled in the top of top board 131.It is therefore preferred that as shown in fig. 6, the depth of depressed part B
Degree E is the 45%~55% of the thickness T of top board 131.
In sum, for example, when the thickness T of top board is 0.27mm, the depth E of depressed part B is 0.13~0.15mm,
In this case, the thickness of catoptric arrangement 12 need not be reduced, it is possible to ensure catoptric arrangement 12 away from the side of base plate 132 and top board
The 131 side flushes for deviating from base plate 132, while depressed part B also can play support to the device for being superimposed on the top of top board 131
Effect.
Based on this, when as shown in figure 5, the width W of depressed part B2Less than the width W of top board 131140% when, fixed part 120
Fixed space in depressed part B is too small, reduces the cohesive force of catoptric arrangement 12 and depressed part B, causes easily reflection knot
The phenomenon that structure 12 comes off.As the width W of depressed part B2More than the width W of top board 131160% when, be not provided with top board 131 depression
The region of portion B is too small, and when subsequent technique is superimposed other devices on top board 131, top board 131 cannot play branch to above-mentioned device
Support is acted on, so as to cause top board 131 easily rupturable.It is therefore preferred that the width W of depressed part B2It is the width W of top board 131140%~
60%.So, top board 131 can both meet the supporting role of the device to side superposed thereon, also can guarantee that reflection knot
Fixed effect of the structure 12 in depressed part B.
Additionally, in order to provide power supply, backlight module 01 to above-mentioned light source 11 as shown in fig. 6, also including being arranged at base plate 132
The circuit board 14 of top, light source 11 is arranged at the piece area Z as shown in Figure 7 of circuit board 14.
Specifically, as shown in fig. 7, having the piece point P being evenly arranged on circuit board 14.First, according to the welding of light source 11
Piece area Z is determined in position on circuit board 14, and the center of piece area Z is determined according to the piece point P in piece area Z；
Then the center of light source 11 is overlapped with the centre position of piece area Z, light source 11 is welded on by circuit board by piece point P
On 14.
During backlight module 01 is assembled, after light source 11 is installed on circuit board 14, can be by light source 11 and circuit
Plate 14 is fixed in U-shaped holding part together.Next, light guide plate 10 to be placed on the side of light source 11, light guide plate 10 is by such as Fig. 6
Shown adhesive tape 17 is fixed on circuit board 14.
On this basis, after due to catoptric arrangement 12 is fixed on into depressed part B, the fixed part 120 of catoptric arrangement 12 is pushed up
Plate 131 is blocked, and the part cannot be reflected the light that light source 11 sends.As shown in fig. 6, the exiting surface and circuit of light source 11
The distance between the side of the close one end of light guide plate 10 of plate 14 L is larger, when being greater than 5mm, is removed in the light that light source 11 sends
Light into beyond light guide plate 10 will expose to top board 131, light that now catoptric arrangement 12 can only send to light guide plate 10
Line is reflected, so as to reduce the utilization rate of light.Therefore, in order to improve the utilization rate of light, it is preferred that above-mentioned apart from L
Less than or equal to 5mm, so that the light that the reflecting part 121 of catoptric arrangement 12 can either send to light guide plate 10 is carried out instead
Penetrate, the part in the light that can be sent to light source 11 again in addition to entering light guide plate 10 is reflected, and improves light source 11
The utilization rate of emergent ray.
On this basis, lead except entering to further improve in the light that above-mentioned reflecting part 121 sends to light source 11
The reflection efficiency of the light beyond tabula rasa 10, the exiting surface position of light source 11 can be to the side shifting near reflecting part 121, such as
Shown in Fig. 6, installation site of the light source 11 on circuit board 14 is moved right, so that the exiting surface for reducing light source 11 is anti-with above-mentioned
Penetrate the distance between portion 121 so that most of energy of the light in the light that light source 11 sends in addition to entering light guide plate 10
Reflecting part 121 is enough exposed to, and is reflected by the reflecting part 121, to improve light utilization.
However, the requirement of the piece technique due to light source 11 on circuit board 14, above-mentioned to need to be more than or equal to apart from L
0.6mm, if this is less than 0.6mm, after the center of light source 11 is overlapped with the center of piece area Z, light source 11 apart from L
A part can be suspended on beyond circuit board 14, so that the hanging part of light source 11 cannot be welded on into circuit by piece point P
On plate 14.Additionally, if this is less than 0.6mm apart from L, the attached area of adhesive tape 17 is too small, is unfavorable for for light guide plate 10 being fixed on electricity
On road plate 14.
In sum, the exiting surface of light source 11 is 0.6mm near the distance between the side of light guide plate 10 L with circuit board 14
~5mm.So, in the case where the above-mentioned scope apart from L is met, light source 11 is moved right by circuit board 14,
Both the exiting surface of light source 11 can have been caused near above-mentioned reflecting part 121, to improve the reflecting effect of catoptric arrangement 12, again can be true
Light source 11 is protected to be welded in completely on circuit board 14.
Additionally, the utility model is not limited the species of circuit board 14, for example, can be printed circuit board (PCB) or flexibility
Circuit board.However, when circuit board 14 is printed circuit board (PCB), because printed circuit board (PCB) is thicker, therefore when printed circuit board (PCB) and light
It is larger that source 11 is fixed together that when the being placed on U-shaped holding part, it is necessary to opening of backboard 13 does, to house light source 11 and circuit board
14, so as to increased the thickness of backboard 13, it is unfavorable for by the lightening development of backlight module 01.And flexible PCB itself compared with
It is thin, it is therefore preferred that circuit board 14 is flexible PCB, will not both increase the thickness of backboard 13, also can provide electricity for light source 11
Source.
However, when foregoing circuit plate 14 be flexible PCB when, it is above-mentioned meet 0.6mm~5mm apart from L in the case of,
When installation site deflection flexible PCB by light source 11 on flexible PCB is close to the side of light guide plate 10, now, due to
Flexible PCB itself is relatively soft, therefore flexible PCB can be tilted near one end of side plate 130 because of disequilibrium, be entered
And cause the light-emitting area of light source 11 to be moved, cause backlight module 01 optics occur and show bad.
Based on this, in order to the flexible PCB for preventing the rear of light source 11 is tilted, as shown in figure 8, circuit board 14 is close to
One end of side plate 130 is provided with balanced structure 20, and balanced structure 20 is used for the height at piece area two ends on balancing flexible circuit board.
It should be noted that the utility model is not limited the height K of balanced structure 20 as shown in Figure 8.In order to keep away
The height for exempting from the height K of balanced structure 20 is too high, and causes the phenomenon of shade to occur the emergent ray of light source 11, it is preferred that
Height Hs of the height K of balanced structure 20 less than or equal to light source 11.The utility model is not limited the material of balanced structure 20
Fixed, such as balanced structure 20 can include the balance body being made up of resin material or metal material.In the case, balance
Structure 20 also needs to include the colloidal materials layer being arranged on balance body, so that balance body can be fixed on circuit board
On 14.
Further, as shown in figure 8, backlight module 01 also includes the diffuser plate 19 positioned at the exiting surface of light guide plate 10.Diffusion
Plate 19 is used to uniformly be spread the light of the outgoing of light guide plate 10.Diffuser plate 19 has two kinds of mounting means, such as such as Fig. 8 institutes
Show, catoptric arrangement 12 rides over the side of the exiting surface of diffuser plate 19.Or, and for example as shown in figure 9, diffuser plate 19 is superimposed upon reflection
Structure 12 is away from the side of base plate 132.
However, when catoptric arrangement 12 is superimposed upon away from the scheme of the side of base plate 132 using diffuser plate 19, follow-up group
Other devices in dress technique are superimposed upon on diffuser plate 19, due to there is gap between diffuser plate 19 and light guide plate 10 therefore folded
Being added in other devices of diffuser plate 19 can be under gravity or external force effect so that diffuser plate 19 easily ruptures.It is therefore preferred that
Catoptric arrangement 12 rides over the side of the exiting surface of diffuser plate 19.So, on the one hand, diffuser plate 19 is directly attached to light guide plate 10
On, it is to avoid because there is gap between diffuser plate 19 and light guide plate 10, and cause other devices for being superimposed upon diffuser plate 19 to make expansion
Fall apart 19 easily rupturable phenomenons.On the other hand, above-mentioned catoptric arrangement 12 rides on diffuser plate 19 naturally, can be upward to light source 11
The light that light guide plate 10 is not incident in the light for sending is reflected, it is therefore prevented that the generation of light leakage phenomena.
On this basis, backlight module 01 is as shown in figure 8, also include brightening piece 15, brightening piece 15 is located at above-mentioned diffuser plate
On 19, for outgoing after the light emission side that the light that diffuser plate 19 spreads is concentrated on light guide plate 10, going out for backlight module 01 is improved
Optical uniformity.
Additionally, after backlight module 01 is completed, when catoptric arrangement 12 is near one end of the light emission side of light guide plate 10 and increasing
Mating plate 15 apart from N (shown in Fig. 8) be less than 0.5mm when, under hot conditions, easily cause brightening piece 15 in the side of extension of light guide plate 10
Upward expansion room is not enough, and brightening piece 15 expands upwards, causes backlight module 01 picture that membrane material heaves occur bad
Phenomenon occurs.Therefore, catoptric arrangement 12 need to control to be more than near one end of the light emission side of light guide plate 10 with the distance of brightening piece 15
0.5mm。
In the case, in order that obtaining catoptric arrangement 12 near one end of the light emission side of light guide plate 10 and the distance of brightening piece 15
More than or equal to 0.5mm, it is preferred that fixation portions 120 is small near the distance between one end and depressed part the B S of side plate 130
In or equal to 0.3mm.So, brightening piece 15 has enough expansion rooms, it is to avoid brightening piece 15 prolongs in light guide plate 10
Stretch that expansion room on direction is not enough, cause backlight module 01 the bad phenomenon of picture that membrane material heaves occur and occur.
On this basis, in order to further improve the light utilization of backlight module 01, as shown in figure 8, above-mentioned backlight mould
Group 01 also includes reflector plate 16, and reflector plate 16 is located on above-mentioned base plate 132, is assembled in the lower section of light guide plate 10, for will be from leading
The light of the non-light emission side outgoing of tabula rasa 10 reflexes to light guide plate 10.
Further, in order to prevent backlight module 01 from light leakage phenomena occurring, backlight module 01 also includes shading as shown in Figure 8
Adhesive tape 18, shading rubber belt 18 be superimposed upon above-mentioned top board 131, catoptric arrangement 12 and on brightening piece 15 light extraction of non-light guide plate 10 area
Domain.So, shading rubber belt 18 can be blocked to the light of non-outgoing area, it is therefore prevented that the generation of light leakage phenomena.
The utility model embodiment provides a kind of display device, including any one backlight module as described above, tool
There are the backlight module identical structure and beneficial effect provided with previous embodiment, because previous embodiment is to the backlight mould
The structure and beneficial effect of group are described in detail, and here is omitted.
It should be noted that above-mentioned display device can be small-sized for mobile phone, panel computer, display, notebook computer etc.
Or portable product or part with display function.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power
The protection domain that profit is required is defined.
Claims (10)
1. a kind of backlight module, including light guide plate and the light source of the light guide plate side is arranged at, it is characterised in that the back of the body
Light module also includes backboard, and at least one end of the backboard is provided with U-shaped holding part, and the U-shaped holding part includes being oppositely arranged
Base plate and top board, and the side plate between the base plate and top board；Wherein, the top board is near the backlight module
Light emission side；
The top board is provided with depressed part away from a side surface of the base plate；The backlight module also includes catoptric arrangement, institute
Stating catoptric arrangement includes fixed part and reflecting part, wherein, the fixed position is in the depressed part；The reflecting part edge deviates from
The top board is stretched out in the direction of the side plate, and is reflected for the emergent ray to the light source.
2. backlight module according to claim 1, it is characterised in that the depressed area deviates from the side in the top board
One end of plate, and the depressed part longitudinal cross-section is shaped as L-type, wherein, the light extraction of the longitudinal cross-section and the light guide plate
Face is vertical.
3. backlight module according to claim 2, it is characterised in that the catoptric arrangement away from base plate a side surface with
Side flush of the top board away from the base plate.
4. backlight module according to claim 3, it is characterised in that the depth of the depressed part is the top plate thickness
45%~55%.
5. backlight module according to claim 2, it is characterised in that the width of the depressed part is the top board width
40%~60%.
6. backlight module according to claim 1, it is characterised in that the also circuit including being arranged above the base plate
Plate, the light source is arranged at the piece area of the circuit board, and the exiting surface of the light source is with the circuit board near the leaded light
The distance between side of plate one end is 0.6mm~5mm.
7. backlight module according to claim 6, it is characterised in that the circuit board is flexible PCB, the flexibility
Circuit board is provided with balanced structure near one end of the side plate, the height for balancing the flexible PCB two ends；
Wherein, height of the height of the balanced structure less than or equal to the light source.
8. backlight module according to claim 1, it is characterised in that also including the diffusion positioned at the light guide plate exiting surface
Plate, the catoptric arrangement is located at the exiting surface of the diffuser plate.
9. backlight module according to claim 1, it is characterised in that the fixed part is near one end of the side plate and institute
It is less than or equal to 0.3mm to state the distance between depressed part.
10. a kind of display device, it is characterised in that including the backlight module described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720003125.9U CN206301120U (en) | 2017-01-03 | 2017-01-03 | A kind of backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720003125.9U CN206301120U (en) | 2017-01-03 | 2017-01-03 | A kind of backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206301120U true CN206301120U (en) | 2017-07-04 |
Family
ID=59203765
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720003125.9U Expired - Fee Related CN206301120U (en) | 2017-01-03 | 2017-01-03 | A kind of backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206301120U (en) |
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| CN108087792A (en) * | 2018-01-31 | 2018-05-29 | 广东欧珀移动通信有限公司 | A kind of backlight module and electronic equipment |
| CN108087794A (en) * | 2018-01-31 | 2018-05-29 | 广东欧珀移动通信有限公司 | A kind of backlight module and electronic equipment |
| CN108087793A (en) * | 2018-01-31 | 2018-05-29 | 广东欧珀移动通信有限公司 | A kind of backlight module and electronic equipment |
| CN108254971A (en) * | 2018-01-31 | 2018-07-06 | 广东欧珀移动通信有限公司 | The installation method of backlight module, electronic device and backlight module |
| CN108254972A (en) * | 2018-01-31 | 2018-07-06 | 广东欧珀移动通信有限公司 | The installation method of backlight module, electronic device and backlight module |
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| WO2020220817A1 (en) * | 2019-04-30 | 2020-11-05 | 京东方科技集团股份有限公司 | Backlight module, display module, and display device |
| EP3719388A4 (en) * | 2018-01-31 | 2021-02-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Backlight module and electronic device |
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| CN108087793B (en) * | 2018-01-31 | 2023-10-17 | Oppo广东移动通信有限公司 | Backlight module and electronic equipment |
| EP3719388A4 (en) * | 2018-01-31 | 2021-02-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Backlight module and electronic device |
| CN110082958A (en) * | 2019-04-29 | 2019-08-02 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
| WO2020220817A1 (en) * | 2019-04-30 | 2020-11-05 | 京东方科技集团股份有限公司 | Backlight module, display module, and display device |
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