CN206848653U - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
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- CN206848653U CN206848653U CN201720798506.0U CN201720798506U CN206848653U CN 206848653 U CN206848653 U CN 206848653U CN 201720798506 U CN201720798506 U CN 201720798506U CN 206848653 U CN206848653 U CN 206848653U
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Abstract
The utility model embodiment provides a kind of backlight module and display device, is related to display technology field, can solve the problem that the problem of light efficiency of the light incidence light guide plate that backlight is sent in backlight module is relatively low.Including：COB light emitting sources, planar light source is formed for stimulated luminescence.Printed substrate, the connection of COB light emitting sources is set is passed through electric current to excite COB light emitting sources to light on a printed-wiring board, on printed substrate.Light guide plate, is arranged on the light emission side of COB light emitting sources, and the light that COB light emitting sources are sent is incident in light guide plate by the incident side of light guide plate.Glue frame, COB light emitting sources, printed substrate and light guide plate are arranged in glue frame, will be fixedly connected by the shading rubber belt for being pasted onto printed substrate and light guide plate exiting surface fringe region between printed substrate and light guide plate and glue frame.Reflecting layer, it is arranged between the fringe region and shading rubber belt of light guide plate exiting surface, for the light that exiting surface fringe region is radiated in light guide plate to be reflected back inside light guide plate.
Description
Technical field
It the utility model is related to display technology field, more particularly to a kind of backlight module and display device.
Background technology
LCD (LiquidCrystalDisplay, liquid crystal display) is a kind of passive luminescent device, it is necessary to BLU
(Backlight Unite, backlight module) provides light source to liquid crystal display makes its display image.At present, liquid crystal display master
The back light source technique to be used includes：CCFL (Cold Cathode Fluorescent Lamp, cold-cathode tube) and LED
(Light Emitting Diodes, light emitting diode).Due to LED backlight have brightness height, excitation height, long lifespan, can
By property it is good, without a variety of advantages such as mercury pollution, the proportion occupied in the use of backlight gradually increases.
The backlight module of liquid crystal display, straight-down negative and side entering type can be divided into according to the set-up mode of backlight.Wherein
In the backlight module of side entering type, including backlight and light guide plate, the light that backlight is sent is incident by the side of light guide plate, is leading
The back side of tabula rasa is additionally provided with reflecting plate, is incident to the light inside light guide plate by the reflection of reflecting plate and dissipating for light guide plate
After penetrating effect, it is emitted by the exiting surface of light guide plate, to realize that providing light source to liquid crystal display makes the purpose of its display image.
In the prior art, the backlight in side entrance back module is usually using LED backlight, i.e., in the circuit board by
The linear light source that LED lamp bead dense arrangement forms, but due to the limitation of LED lamp bead itself encapsulating structure, LED lamp bead it is embedded with
In wiring board, between the light emission side and light guide plate of LED lamp bead to enter electrical distance larger, generally reach 2.8mm-3.2mm or so, this
Sample one will cause the light extraction efficiency for reducing backlight module, moreover, the light that LED lamp bead is sent is limited in about 120 ° of angle
In the range of, luminous dark space is included between two adjacent LEDs lamp bead, is occurred so as to can also cause the picture of liquid crystal display to show
The uneven bad phenomenon of light and shade.
Utility model content
The utility model embodiment provides a kind of backlight module and display device, can solve the problem that backlight is sent out in backlight module
The problem of light efficiency of the light incidence light guide plate gone out is relatively low.
To reach above-mentioned purpose, embodiment of the present utility model adopts the following technical scheme that：
The one side of the utility model embodiment provides a kind of backlight module, including：COB light emitting sources, for stimulated luminescence
Form planar light source.Printed substrate, the connection of COB light emitting sources are set on a printed-wiring board, and electric current is passed through on printed substrate
To excite COB light emitting sources to light.Light guide plate, the light emission side of COB light emitting sources is arranged on, the light that COB light emitting sources are sent is by leading
The incident side of tabula rasa is incident in light guide plate.Glue frame, COB light emitting sources, printed substrate and light guide plate are arranged in glue frame, are led to
Cross and be pasted onto the shading rubber belt of printed substrate and light guide plate exiting surface fringe region by printed substrate and light guide plate and glue
It is fixedly connected between frame.Reflecting layer, it is arranged between the fringe region and shading rubber belt of light guide plate exiting surface, for by light guide plate
The light for being inside radiated at exiting surface fringe region is reflected back inside light guide plate.
Further, the backlight module of the utility model embodiment also includes the optical film material for being arranged on light guide plate exiting surface
Component, optical film material component is arranged between light guide plate and shading rubber belt, and is fixedly installed on by shading rubber belt in glue frame.
Preferably, optical film material component includes upper layers of prisms, lower layers of prisms and diffusion sheet.
Preferably, the side of optical film material component is in contact with the side in reflecting layer.
Preferably, it is additionally provided with adhesive close to the side of shading rubber belt in reflecting layer, reflecting layer and adhesive
Thickness sum is equal with the gross thickness of optical film material component.
Further, the backlight module of the utility model embodiment also includes bottom reflector plate, and bottom reflector plate is arranged on leaded light
Backboard separates out the bottom surface of smooth surface, and bottom reflector plate is arranged in glue frame by reflecting gum stickup.Wherein, reflection gum extends internally
To the edge of bottom surface of light guide plate.
Preferably, the side in light guide plate in addition to incident side corresponds to and is extended between bottom edge and bottom reflector plate
There is reflection gum, and it is equal in the extended distance of bottom edge corresponding to multiple light guide plate sides to reflect gum.
Preferably, it is dark extinction glue-line to reflect gum.
The another aspect of the utility model embodiment provides a kind of display device, includes the backlight module of any of the above-described.
Preferably, display device includes viewing area and inwardly prolonged around the neighboring area of viewing area, reflection gum
Extend and the position that viewing area has a common boundary with neighboring area is corresponded on bottom surface of light guide plate.
The utility model embodiment provides a kind of backlight module and display device, including：COB light emitting sources, for being stimulated
Light forms planar light source.Printed substrate, the connection of COB light emitting sources are set on a printed-wiring board, and electricity is passed through on printed substrate
Flow to excite COB light emitting sources to light.Light guide plate, is arranged on the light emission side of COB light emitting sources, and the light that COB light emitting sources are sent passes through
The incident side of light guide plate is incident in light guide plate.Glue frame, COB light emitting sources, printed substrate and light guide plate are arranged in glue frame,
By be pasted onto the shading rubber belt of printed substrate and light guide plate exiting surface fringe region by printed substrate and light guide plate with
It is fixedly connected between glue frame.Reflecting layer, it is arranged between the fringe region and shading rubber belt of light guide plate exiting surface, for by leaded light
The light that exiting surface fringe region is radiated in plate is reflected back inside light guide plate.By light guide plate exiting surface fringe region with
For setting reflecting layer between the shading rubber belt of lightguide plate fixing so that originally went out in light guide plate by exiting surface fringe region
It can be returned after penetrating by the light of shading rubber belt absorption loss water by the reflex in reflecting layer inside light guide plate, and in light guide plate
It is emitted under internal multiple reflections and scattering process by exiting surface, backlights for display devices is shown, so as to reduce light
Loss, the utilization rate of backlight is improved, improve the overall brightness of backlight module emergent ray.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the 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 for backlight module that the utility model embodiment provides；
Fig. 2 is the structural representation for including optical film material component in a kind of backlight module that the utility model embodiment provides
One of figure；
Fig. 3 is the hierarchical structure figure of optical film material component in Fig. 2；
Fig. 4 is the structural representation for including optical film material component in a kind of backlight module that the utility model embodiment provides
The two of figure；
Fig. 5 is the structural representation for including adhesive in a kind of backlight module that the utility model embodiment provides；
Fig. 6 is that the side that light source is provided with a kind of backlight module that the utility model embodiment provides also includes reflection
The structural representation of piece；
Fig. 7 is that the side that light source is not provided with a kind of backlight module that the utility model embodiment provides also includes instead
Penetrate the structural representation of piece；
Fig. 8 is a kind of one of structural representation of display device that the utility model embodiment provides；
Fig. 9 is the two of the structural representation for a kind of display device that the utility model embodiment provides.
Reference：
01- backlight modules；02- display panels；10-COB light emitting sources；20- printed substrates；30- light guide plates；40- glue frames；
50- shading rubber belts；60- reflecting layer；70- optical film material components；The upper prisms of 71-；Prism under 72-；73- diffusion sheets；80- glues
Layer；90- bottoms reflector plate；100- reflects gum；AA- viewing areas；BB- neighboring areas.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, 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 obtained, belong to the scope of the utility model protection.
The utility model embodiment provides a kind of backlight module, as shown in figure 1, including：COB light emitting sources 10, for being excited
It is luminous to form planar light source.Printed substrate 20, the connection of COB light emitting sources 10 are arranged on printed substrate 20, printed substrate
Electric current is passed through on 20 to excite COB light emitting sources 10 luminous.Light guide plate 30, is arranged on the light emission side of COB light emitting sources 10, and COB lights
The light that source 10 is sent is incident in light guide plate 30 by the incident side of light guide plate 30.Glue frame 40, COB light emitting sources 10, track
Road plate 20 and light guide plate 30 are arranged in glue frame 40, by being pasted onto printed substrate 20 and the exiting surface edge of light guide plate 30
The shading rubber belt 50 in region will be fixedly connected between printed substrate 20 and light guide plate 30 and glue frame 40.Reflecting layer 60, is arranged on
Light guide plate goes out between the fringe region of 30 smooth surfaces and shading rubber belt 50, for will be radiated at exiting surface fringe region in light guide plate 30
Light be reflected back inside light guide plate 30.
It should be noted that first, the COB light emitting sources 10 described in the utility model embodiment include substrate, are arranged on base
Chip on plate and the phosphor film layer for being arranged on chip surface, in the case where the chip to COB light emitting sources 10 is passed through electric current,
Chip stimulated luminescence and can its exiting surface be emitted be planar light source.COB light emitting sources 10 by substrate and printed substrate
It is fixedly connected between 20, being passed through driving current to the chip of COB light emitting sources 10 by printed substrate 20 makes it luminous.Moreover,
As shown in figure 1, COB light emitting sources 10 can with printed substrate 20 close to light guide plate 30 a lateral edges it is concordant set, with reduce
The light that COB light emitting sources 10 are sent is incident to the electrical distance that enters in light guide plate 30, meanwhile, by the principle of luminosity of COB light emitting sources 10
Understand, the planar light source that COB light emitting sources 10 are sent to the incident side of light guide plate 30 can approximation be considered as directional light, so as to improve
The light that COB light emitting sources 10 are sent is incident to the light efficiency of light guide plate 30.
Second, the backlight module of the utility model embodiment is by taking side entrance back module as an example, in side entrance back module
The incident side of light guide plate 30 is located at the side of light guide plate 30, after light enters the inside of light guide plate 30 by incident side, by leaded light
The total reflection of plate 30 and be arranged on the bottom surface of light guide plate 30 site scattering process, be finally uniformly emitted by exiting surface.Such as
Shown in Fig. 1, the exiting surface of COB light emitting sources 10 attaches a side for being arranged on light guide plate 30, i.e., in the incident side of light guide plate 30,
To cause light that COB light emitting sources 10 are sent to be directly transmitted to the inside of light guide plate 30.
3rd, glue frame 40 is for by the COB light emitting sources 10 in backlight module, connection COB light emitting sources 10 and providing electric current
It is fixedly connected between driving COB light emitting sources 10 luminous printed substrate 20 and light guide plate 30, on the one hand ensures backlight module
In each optical module mutual alignment relation it is stable, on the other hand, the barrier effect by glue frame 40 to light, additionally it is possible to reduce
The loss to luminous quantity caused by the field emission beyond the exiting surface of light guide plate 30 of light in backlight module.Under normal circumstances,
Glue frame 40 is fixedly connected using gluing mode, for example, shading rubber belt to other optical modules in backlight module.This practicality
The new embodiment of structure in to(for) glue frame 40 is not specifically limited, as long as disclosure satisfy that other optics groups in backlight module
It is stably connected between part and glue frame 40, and the light being emitted by the region beyond the exiting surface of light guide plate 30 can be stopped, is reduced
The phenomenon of light leak.
4th, as shown in figure 1, COB light emitting sources 10 are along the direction incidence light guide plate 30 shown in arrow, the light extraction of light guide plate 30
Backlight of the whole face emergent ray in face as display device.The backlight module of the utility model embodiment is applied to display device
In, in order to ensure display device when carrying out backlight display, the marginal portion of viewing area and core brightness are balanced, lead to
In the case of often, the size of light guide plate 30 needs the viewing area slightly larger than display device, what the fringe region of light guide plate 30 referred to
It is that a part of region that light guide plate 30 is more than display device viewing area.Shading rubber belt 50 is exactly by pasting light guide plate 30
Fringe region to light guide plate 30 to carry out stickup fixation.As shown in figure 1, reflecting layer 60 is arranged on the edge of the exiting surface of light guide plate 30
Between region and shading rubber belt 50, go out in light guide plate 30 by total reflection and site scattering process to the opening position of reflecting layer 60
The part light penetrated, when being not provided with by reflecting layer 60, absorption is stopped by shading rubber belt 50 after being emitted by light guide plate 30, made
Into the loss of part light quantity, when being provided with reflecting layer 60 here, due to the reflex in reflecting layer 60, this some light can
It is reflected back toward inside light guide plate 30, again passes by the viewing area for corresponding to display device after multiple reflections by the exiting surface of light guide plate 30
The position outgoing of (VA areas, View Area), so as to improve the brightness that light guide plate 30 is emitted to viewing area.This practicality is new
Type embodiment is not limited for specific setting length of the reflecting layer 60 in the fringe region of light guide plate 30, as long as ensureing to be provided with instead
The backlight module for penetrating layer 60 is applied in display device, and reflecting layer 60 is not extend to the viewing area of display device and influences to show
.
5th, the material in the utility model embodiment for reflecting layer 60 is not particularly limited, as long as can realize pair
The reflex of light, more preferably, it is, for example, possible to use silver-colored reflective coating (Enhanced Specular
Reflector, ESR) reflecting layer 60 is used as, there can be higher light reflective properties.
The utility model embodiment provides a kind of backlight module, including：COB light emitting sources, plane is formed for stimulated luminescence
Light source.Printed substrate, the connection of COB light emitting sources is set is passed through electric current to excite COB on a printed-wiring board, on printed substrate
Light emitting source lights.Light guide plate, is arranged on the light emission side of COB light emitting sources, and the light that COB light emitting sources are sent enters light by light guide plate
Side is incident in light guide plate.Glue frame, COB light emitting sources, printed substrate and light guide plate are arranged in glue frame, by being pasted onto print
The shading rubber belt of brush wiring board and light guide plate exiting surface fringe region will be fixed between printed substrate and light guide plate and glue frame
Connection.Reflecting layer, it is arranged between the fringe region and shading rubber belt of light guide plate exiting surface, for will be radiated at out in light guide plate
The light of smooth surface fringe region is reflected back inside light guide plate.Leaded light is fixed with being used for by the fringe region in light guide plate exiting surface
Reflecting layer is set between the shading rubber belt of plate so that originally in light guide plate by exiting surface fringe region outgoing after by shading glue
Light with absorption loss water can be returned inside light guide plate by the reflex in reflecting layer, and multiple anti-inside light guide plate
Penetrate and scattering process under be emitted by exiting surface, backlights for display devices is shown, so as to reduce light loss, improves the back of the body
The utilization rate of light source, improve the overall brightness of backlight module emergent ray.
Further, as shown in Fig. 2 the backlight module of the utility model embodiment also includes being arranged on the light extraction of light guide plate 30
The optical film material component 70 in face, optical film material component 70 is arranged between light guide plate 30 and shading rubber belt 50, and passes through shading glue
Band 50 is fixedly installed in glue frame 40.
In order to further improve the light-out effect of light guide plate 30, so that the display picture image quality of display device is excellent,
As shown in Fig. 2 the exiting surface in light guide plate 30 is additionally provided with optical film material component 70, optical film material component 70 is arranged on display dress
The position of the corresponding viewing area of middle light guide plate 30 is put, likewise, under normal circumstances, the size of optical film material component 70 is also required to omit
More than the viewing area of display device.So, optical film material component 70 just can be by being more than the portion of viewing area at it
Divide stickup shading rubber belt 50 to be fixed, optical film material component 70 is fixed in glue frame 40 by shading rubber belt 50.Such as Fig. 2 institutes
Show, due to shading rubber belt 50 while fixing printing wiring board 20, light guide plate 30 and optical film material component 70, allow for this practicality
In new backlight module, it is arranged between the printed substrate 20 in glue frame 40, light guide plate 30 and optical film material component 70
Mutual alignment relation can also keep stable, the problem of avoiding misplacing.
Preferably, as shown in figure 3, optical film material component 70 includes upper layers of prisms 71, lower layers of prisms 72 and diffusion sheet 73.
As shown in figure 3, when optical film material component 70 includes upper layers of prisms 71, lower layers of prisms 72 and diffusion sheet 73, will
Optical film material component 70 is arranged on the exiting surface of light guide plate 30, by the light that light guide plate 30 is emitted by upper layers of prisms 71, lower rib
The diffusion of mirror layer 72 and diffusion sheet 73 and refraction action, enable to the luminous intensity point of the light of whole face outgoing on the whole everywhere
Cloth is more uniformly distributed.
In addition, the composition structure of the optical film material component 70 of the utility model embodiment is not limited to above-mentioned upper layers of prisms
71st, lower layers of prisms 72 and diffusion sheet 73, for example, in order to further improve the emitting brightness of light guide plate 30, can also include increasing
Bright film.
The base material form of each group film forming layer in optical film material component 70 is not specifically limited in the utility model embodiment,
Can be soft thin film shaped material, or hard diaphragm, for the ease of fixation, reduce the deformation of optical film material recurring structure
The influence to caused by the light direction of propagation, it is preferable to from the base material of hard material, to cause optical film material component 70
Middle each group film forming layer is arranged in the backlight module of the utility model embodiment for the form of hard diaphragm.
Preferably, as shown in figure 4, the side of optical film material component 70 is in contact with the side in reflecting layer 60.
So, avoid and leave space (such as Fig. 3 between the side of optical film material component 70 and the side in reflecting layer 60
Shown in middle dotted line frame) when, light light loss as caused by being emitted the gap of the outgoing of light guide plate 30, moreover, gap is spilt
Light be also possible to show the picture of display device viewing area and impact.
Preferably, as shown in figure 5, being additionally provided with adhesive 80 close to the side of shading rubber belt 50 in reflecting layer 60, instead
It is equal with the thickness sum W1 of adhesive 80 and the gross thickness W2 of optical film material component 70 to penetrate layer 60.
As shown in figure 5, setting adhesive 80 close to the side of shading rubber belt 50 in reflecting layer 60, can not increase instead
While penetrating the thickness of layer 60, and ensure fixed position between shading rubber belt 50 and reflecting layer 60 so that reflecting layer 60 is with pasting
The thickness sum W1 of glue-line 80 is equal with the gross thickness W2 of optical film material component 70, so, on the one hand, ensure that light guide plate
The flatness of the setting structure of each position on 30 exiting surfaces, when avoiding the variable thickness from causing, backlight module is being installed and used
Easily caused structural instability even crushes in the stress for the opening position generation part for producing thickness difference in journey；On the other hand,
Variable thickness causes that space will be produced between each part of backlight module, and then causes backlight module to occur in use
Light leakage phenomena.
In addition it is also possible to be not provided with adhesive 80, only pass through the thickness reflecting layer 60 for changing reflecting layer 60 and light
Learn the consistency of thickness of membrane material component 70.
Further, as shown in fig. 6, the backlight module of the utility model embodiment also includes bottom reflector plate 90, bottom reflection
Piece 90 is arranged on the bottom surface that light guide plate 30 deviates from exiting surface, and bottom reflector plate 90 is arranged on glue frame 40 by reflecting the stickup of gum 100
On.Wherein, reflection gum 100 extends inwardly to the edge of the bottom surface of light guide plate 30.
It should be noted that those skilled in the art, it is to be understood that in side entrance back module, light guide plate 30 is provided with
One or more sides of light source are incident side, and the side towards the display surface of display device is exiting surface, relative with exiting surface
And the side for being provided with scattering netted dot is bottom surface.
As shown in fig. 6, bottom reflector plate 90 is arranged on the bottom surface of light guide plate 30, can ensure to be radiated at the bottom surface of light guide plate 30
Light all by site scattering etc. effect reflect, without being emitted by bottom surface, so as to avoid the bottom surface of light guide plate 30
Light loss.Bottom reflector plate 90 is pasted and fixed in glue frame 40 by reflecting gum 100, and the length for reflecting gum 100 is inside
Extend to the edge of the bottom surface of light guide plate 30, it becomes possible to while the fixation bottom reflector plate 90 of gum 100 is reflected, also by light guide plate 30
It is fixed by the stickup at the marginal position of light guide plate 30, so as to avoid relative position of the light guide plate 30 in backlight module
It is moved and the influence to caused by display.
Preferably, the side in light guide plate 30 in addition to incident side corresponds to and extended between bottom edge and bottom reflector plate 90
Reflection gum 100 is provided with, and reflects extended distance phase of the gum 100 in bottom edge corresponding to multiple sides of light guide plate 30
Deng.
As shown in fig. 7, other sides in light guide plate 30 in addition to incident side, again by bottom reflector plate 90 will be pasted
Reflection gum 100 further extends to the marginal position of light guide plate 30, and light guide plate 30 is fixed.So, with regard to energy
Stickup fixation is enough carried out to light guide plate 30 by four direction simultaneously, so as to improve the fixed effect of light guide plate 30, it is preferred that anti-
The extended distance that gum 100 is penetrated in bottom edge corresponding to multiple sides of light guide plate 30 is equal, so enables to light guide plate 30
The power fixed of the position that is subject on each side it is balanced, further improve the stability of light guide plate 30.
Preferably, as shown in fig. 6, reflection gum 100 is dark extinction glue-line.
Due to that during installation process is fixed, can not ensure that complete pairing contact connects between glue frame 40 and light guide plate 30
Connect, the meeting being difficult to avoid that between adjacent component produces certain gap, in the exiting surface of COB light emitting sources 10 and entering for light guide plate 30
Gap between light side may can cause some light to be thus emitted and cause the phenomenon of backlight module generation bottom surface light leak.Will
The length of reflection gum 100 extends inwardly to the edge of the bottom surface of light guide plate 30, allow for reflecting gum 100 be directly exposed to it is above-mentioned
Gap position, when it be dark extinction glue-line to reflect gum 100, some light that exposes at gap, which can pass through, reflects gum
100 reflex and it is most of be reflected back in light guide plate 30, the light for having not been able to reflection can be by reflection gum 100
Absorption effects and absorb, so as to equivalent to by between the incident side of the exiting surface of COB light emitting sources 10 and light guide plate 30 gap seal
Close, avoid being emitted at the used gap position of light, so as to reduce the light leakage phenomena of backlight module.
The another aspect of the utility model embodiment provides a kind of display device, as shown in figure 8, including any of the above-described
Backlight module.
As shown in figure 8, the light direction of backlight module 01 sets display panel 02, to form the utility model embodiment
Display device, backlight module 01 provides backlight to display panel 02, so that the display panel 02 of display device is in backlight
Realize that picture is shown under the illumination condition that module 01 provides.
Preferably, as shown in figure 9, display device includes viewing area AA and around viewing area AA neighboring area
BB, reflection gum 100, which is extended inwardly on the bottom surface of light guide plate 30, corresponds to the position that viewing area AA and neighboring area BB has a common boundary.
So, as shown in figure 9, reflection gum 100 only extends inwardly to viewing area AA and neighboring area BB boundaries
Position, that is, boundary position will not be surmounted and stretch into the AA of viewing area by reflecting gum 100, avoid reflection gum 100 to aobvious
The picture of showing device, which is shown, to be impacted, and on this basis, the distance that reflection gum 100 extends internally is longer, can more strengthen
Reflect gum 100 to the stickup fixation of bottom reflector plate 90 and light guide plate 30, avoid bottom reflector plate 90 and light guide plate 30 by
Fix insecure in stickup and the problem of relative position moves may occur in backlight module 01.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (10)
- A kind of 1. backlight module, it is characterised in that including：COB light emitting sources, planar light source is formed for stimulated luminescence；Printed substrate, the COB light emitting sources connection are arranged on the printed substrate, and electricity is passed through on the printed substrate Flow to excite the COB light emitting sources to light；Light guide plate, is arranged on the light emission side of the COB light emitting sources, and the light that the COB light emitting sources are sent passes through the light guide plate Incident side be incident in the light guide plate；Glue frame, the COB light emitting sources, the printed substrate and the light guide plate are arranged in the glue frame, pass through stickup In the shading rubber belt of the printed substrate and the light guide plate exiting surface fringe region by the printed substrate and described It is fixedly connected between light guide plate and the glue frame；Reflecting layer, it is arranged between fringe region and the shading rubber belt of the light guide plate exiting surface, for by the leaded light The light that exiting surface fringe region is radiated in plate is reflected back inside the light guide plate.
- 2. backlight module according to claim 1, it is characterised in that also include the light for being arranged on the light guide plate exiting surface Membrane material component is learned, the optical film material component is arranged between the light guide plate and the shading rubber belt, and passes through the shading Adhesive tape is fixedly installed in the glue frame.
- 3. backlight module according to claim 2, it is characterised in that the optical film material component include upper layers of prisms, under Layers of prisms and diffusion sheet.
- 4. the backlight module according to Claims 2 or 3, it is characterised in that the side of the optical film material component with it is described The side in reflecting layer is in contact.
- 5. the backlight module according to Claims 2 or 3, it is characterised in that in the reflecting layer close to the shading rubber belt Side be additionally provided with adhesive, thickness sum and the optical film material component of the reflecting layer with the adhesive Gross thickness is equal.
- 6. backlight module according to claim 1, it is characterised in that also set including bottom reflector plate, the bottom reflector plate Deviate from the bottom surface of exiting surface in the light guide plate, the bottom reflector plate is arranged in glue frame by reflecting gum stickup；Wherein, the reflection gum extends inwardly to the edge of the bottom surface of light guide plate.
- 7. backlight module according to claim 6, it is characterised in that in side pair of the light guide plate in addition to incident side Answer to be extended between bottom edge and bottom reflector plate and have the reflection gum, and the reflection gum is in multiple leaded lights The extended distance of bottom edge is equal corresponding to plate side.
- 8. the backlight module according to claim 6 or 7, it is characterised in that the reflection gum is dark extinction glue-line.
- 9. a kind of display device, it is characterised in that including the backlight module as described in claim any one of 1-8.
- 10. display device according to claim 9, the display device includes viewing area and around the viewing area The neighboring area in domain, it is characterised in that the reflection gum, which is extended inwardly on the bottom surface of light guide plate, corresponds to the viewing area The position that domain has a common boundary with the neighboring area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720798506.0U CN206848653U (en) | 2017-07-03 | 2017-07-03 | A kind of backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720798506.0U CN206848653U (en) | 2017-07-03 | 2017-07-03 | A kind of backlight module and display device |
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| CN206848653U true CN206848653U (en) | 2018-01-05 |
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| CN201720798506.0U Active CN206848653U (en) | 2017-07-03 | 2017-07-03 | A kind of backlight module and display device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828411A (en) * | 2019-02-22 | 2019-05-31 | 信利光电股份有限公司 | A kind of backlight |
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| CN110095900A (en) * | 2018-01-31 | 2019-08-06 | 广东欧珀移动通信有限公司 | A kind of backlight module and electronic device |
| CN109828411A (en) * | 2019-02-22 | 2019-05-31 | 信利光电股份有限公司 | A kind of backlight |
| CN110442202A (en) * | 2019-06-28 | 2019-11-12 | 上海华兴数字科技有限公司 | Display component installation method and display device |
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| US11366264B2 (en) | 2019-09-18 | 2022-06-21 | Beijing Boe Optoelectronics Technology Co., Ltd. | Backlight module, display module and display device |
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| CN111638611A (en) * | 2020-06-10 | 2020-09-08 | 武汉华星光电技术有限公司 | Liquid crystal panel and method for manufacturing same |
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| US20220206206A1 (en) * | 2020-12-29 | 2022-06-30 | Coretronic Corporation | Backlight module and display apparatus |
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