CN108345146A - Side entrance back module and display device - Google Patents
Side entrance back module and display device Download PDFInfo
- Publication number
- CN108345146A CN108345146A CN201810145731.3A CN201810145731A CN108345146A CN 108345146 A CN108345146 A CN 108345146A CN 201810145731 A CN201810145731 A CN 201810145731A CN 108345146 A CN108345146 A CN 108345146A
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- China
- Prior art keywords
- guide plate
- light guide
- light
- storage tank
- side entrance
- 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
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention discloses a kind of side entrance back module and display device, wherein the side entrance back module includes light guide plate and light source assembly；The edge of light guide plate is provided with the storage tank in open setting, and conducting wire is equipped in storage tank；Light source assembly is built in storage tank, and is electrically connected with conducting wire；The incidence surface of light guide plate is the trough wall surface at the close light guide plate center of storage tank；Conducting wire is set on the trough wall surface at the separate light guide plate center of storage tank；Light source assembly includes the LED luminescence units that the length direction interval of multiple incidence surfaces along light guide plate is laid, LED luminescence units include light-emitting surface, joint face and at least two radiating surfaces, the incidence surface relative spacing of light-emitting surface and light guide plate, joint face is connect with light guide plate, and radiating surface is equipped with radiator structure.Technical scheme of the present invention can make display device more ultra-narrow ultrathin.
Description
Technical field
The present invention relates to display device technology field, more particularly to a kind of side entrance back module and display device.
Background technology
Currently, the ultra-thin LCD display part of ultra-narrow has become the emphasis that LCD display industries develop in the recent period, especially for
For the slimming demand of the products such as mobile phone, PAD, computer display screen, liquid crystal display, the thinner side entrance back module of use
To solve the key technology of display device ultra-narrow ultrathin.However, for the design of side entrance back module, light guide plate
The heat dissipation etc. of expansion clearance, light mixing distance, LED and light guide plate matching degree, LED become and restrict LCD display part and realize
The bottleneck of ultra-narrow ultrathin, is embodied in the following：The first, existing side entrance back module needs very big light mixing distance
To realize linear light source, and then easily there is apparent incident side lamp shadow problem in smaller light mixing distance；The second, due to lamp bar SMT
The reasons such as tolerance can lead to the alignment issues of lamp and light guide plate, to incident side bright band occur, and solve the problems, such as this at present
Main method is covered by increasing the diaphragm of an incident side silk-screen, is so not only increased cost and is reduced light efficiency；
Third radiates since LED needs are effective, therefore needs the MCPCB plates thickeied and the aluminum strip that radiates to be unfavorable for the ultra-thin of display
Change；4th, to realize that ultrathin just needs thinner light guide plate, this will cause to need higher between LED lamp bead and light guide plate
Cooperation precision.
Invention content
The main object of the present invention is to provide a kind of side entrance back module, it is intended to keep display device more ultra-narrow ultra-thin
Change.
To achieve the above object, side entrance back module proposed by the present invention includes light guide plate and light source assembly；It is described
The edge of light guide plate is provided with the storage tank in open setting, and conducting wire is equipped in the storage tank；The light source assembly
It is built in the storage tank, and is electrically connected with the conducting wire；The incidence surface of the light guide plate is leaning on for the storage tank
The trough wall surface at the nearly light guide plate center；The conducting wire is set to the cell wall far from the light guide plate center of the storage tank
On face；The light source assembly includes the LED luminescence units that the length direction interval of multiple incidence surfaces along the light guide plate is laid,
The LED luminescence units include light-emitting surface, joint face and at least two radiating surfaces, the light-emitting surface and the light guide plate
Incidence surface relative spacing, the joint face are connect with the light guide plate, and the radiating surface is equipped with radiator structure.
Preferably, the leading edge of the light guide plate side, which outwardly protrudes, is provided with protrusion, with after the protrusion
Side is formed with the storage tank being outwardly and rearwardly open；
The joint face of the LED luminescence units is connect with the trailing flank of the protrusion.
Preferably, the light guide plate is glass light guide plate.
Preferably, the conducting wire is set to the protrusion, and the LED luminescence units pass through COB or COG modes and institute
It states light guide plate to be fixedly connected, and is electrically connected with the conducting wire.
Preferably, the LED luminescence units include multiple concatenated LED wafers, the positive and negative polarities of the LED luminescence units
It is connect respectively with the counter electrode in the conducting wire.
Preferably, the light source assembly further includes phosphor strip, and the phosphor strip covers the institute of the LED luminescence units
Light-emitting surface is stated, alternatively, the phosphor strip is attached at the incidence surface of the light guide plate.
Preferably, the radiator structure includes metallic support, alternatively, the radiator structure include can reflection source EMC
Holder and the cooling fin for being wrapped in EMC stent outers face.
Preferably, the side entrance back module further includes reflector plate, and the reflector plate overlapping is attached at the light guide plate
The back side；The radiator structure further includes heat dissipation foil, and it is single that the heat dissipation foil wraps up the back side of the reflector plate, the LED shines
Lateral surface of the member away from the incidence surface of radiating surface and the protrusion far from the light guide plate of the light-emitting surface.
Preferably, gap filling of the LED luminescence units between one end of the protrusion and the heat dissipation foil
There are heat-conducting glue or heat conduction foam.
The present invention also proposes a kind of display device, including side entrance back module, which includes leaded light
Plate and light source assembly；The edge of the light guide plate is provided with the storage tank in open setting, and is equipped with and leads in the storage tank
Electric line；The light source assembly is built in the storage tank, and is electrically connected with the conducting wire；The light guide plate enters light
Face is the trough wall surface close to the light guide plate center of the storage tank；The conducting wire is set to the separate institute of the storage tank
On the trough wall surface for stating light guide plate center；The light source assembly includes the length direction interval of multiple incidence surfaces along the light guide plate
The LED luminescence units of laying, the LED luminescence units include light-emitting surface, joint face and at least two radiating surfaces, it is described go out
The incidence surface relative spacing of smooth surface and the light guide plate, the joint face are connect with the light guide plate, and the radiating surface is equipped with
Radiator structure.
In technical scheme of the present invention, since the edge of light guide plate is equipped with the storage tank in open setting, and in storage tank
Equipped with conducting wire and it is built-in with the light source assembly being electrically connected with conducting wire, so structure setting has the following advantages：The first,
Since light source assembly is directly with the conducting wire on light guide plate be electrically connected in corresponding polarity, therefore can save
Light source assembly common MCPCB plates in electrical connection, to can realize it is a degree of subtract it is narrow；Second, light source assembly is straight
It connects in the storage tank for being fixed on light-guide edge, i.e., light guide plate can match light source assembly and be designed, in this way, passing through the one
Design can effectively avoid the alignment issues between light source assembly and light guide plate, can not only solve because side entrance back module is ultra-thin
The demand of the light source assembly that ultra-narrow is brought and guide-lighting plate high precision contraposition can also prevent bright caused by contraposition is bad from the root cause
The problems such as band lamp shadow, and then promote the yields of production；Third is directly fixedly connected with light-guide edge by light source assembly,
The components such as center and backboard can be at least saved in traditional side entrance back module, in this way, not only saving material and energy saving
Environmental protection also helps the further ultra-narrow ultrathin of side entrance back module；4th, since light source assembly is direct and light guide plate
Edge connection, therefore light source assembly can have that heat dissipation is bad, be easy to cause the damage of light source assembly and light guide plate, and originally
Invention is by being arranged at least two radiating surfaces on LED luminescence units and radiator structure being arranged on radiating surface, so as to full
The sufficient higher radiating requirements of light source, are advantageously implemented the ultra-narrow ultrathin of side entrance back module.This above several respect integrate
Come, technical scheme of the present invention can more effectively realize the ultra-narrow ultrathin of side entrance back module.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is that the light guide plate of side entrance back module first embodiment of the present invention is in the portion of assembled state with light source assembly
Divide cross-sectional view；
Fig. 2 is the cross-sectional view of the LED luminescence units of the light source assembly in Fig. 1；
Fig. 3 is the structural schematic diagram of the light guide plate and light source assembly in Fig. 1；
Fig. 4 is that the light guide plate of side entrance back module second embodiment of the present invention is in the portion of assembled state with light source assembly
Divide cross-sectional view；
Fig. 5 is the cut-away section structural schematic diagram of display device 3rd embodiment of the present invention；
Fig. 6 is the cut-away section structural schematic diagram of display device fourth embodiment of the present invention；
Fig. 7 is the cut-away section structural schematic diagram of the 5th embodiment of display device of the present invention；
Fig. 8 is the cut-away section structural schematic diagram of display device sixth embodiment of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 1 | Light guide plate | 11 | Storage tank |
| 12 | Protrusion | 2 | Light source assembly |
| 13 | Preceding light guide plate | 14 | Light guide plate afterwards |
| 21 | LED luminescence units | 211 | LED wafer |
| 212 | Light-emitting surface | 213 | Joint face |
| 214 | Radiating surface | 22 | Phosphor strip |
| 23 | EMC holders | 24 | Heat-conducting glue |
| 25 | Radiate foil | 31 | Surface frame |
| 32 | PCB protective covers | 4 | Liquid crystal display panel |
| 5 | Chip on film | 6 | Pcb board |
| 7 | Diaphragm | 8 | Reflector plate |
| 9 | Heat sink |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
If it is to be appreciated that related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after ...),
Then directionality instruction be only used for explaining relative position relation under a certain particular pose (as shown in the picture) between each component,
Motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, it is somebody's turn to do " first ", " second " etc.
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.In addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, when the knot that conflicting or cannot achieve when will be understood that this technical solution occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection domain within.
The present invention proposes a kind of side entrance back module and the display device with the side entrance back module.
Referring to figs. 1 to Fig. 3, in an embodiment of the present invention, which includes light guide plate 1 and light source assembly
2.The edge of light guide plate 1 is provided with the storage tank 11 in open setting, and conducting wire (not indicating) is equipped in storage tank 11；Light
Source component 2 is built in storage tank 11, and is electrically connected with conducting wire；The incidence surface of light guide plate 1 is that the close of storage tank 11 is led
The trough wall surface at 1 center of tabula rasa；Conducting wire is set on the trough wall surface at 1 center of separate light guide plate of storage tank 11；Light source assembly 2 wraps
The LED luminescence units 21 that the length direction interval of multiple incidence surfaces along light guide plate 1 is laid are included, LED luminescence units 21 include
Smooth surface 212, joint face 213 and at least two radiating surfaces 214, the incidence surface relative spacing of light-emitting surface 212 and light guide plate 1, even
Junction 213 is connect with light guide plate 1, and radiating surface 214 is equipped with radiator structure.Here, the length extending direction of storage tank 11 with lead
The lateral edges trend of tabula rasa 1 is consistent, and storage tank 11 can be set on certain one side edge or opposite sides of light guide plate 1 or certain three side or four
The edge etc. of side, in general, storage tank 11 is divided into the left and right two of light guide plate 1 with the light source assembly 2 being built in storage tank 11
Lateral edges.
It should be noted that, this side entrance back module can be applied particularly to liquid crystal display field of backlights, such as but unlimited herein
In mobile phone, IPad, computer display screen, LCD TV and advertisement machine etc..By taking LCD TV as an example, in liquid crystal common at present
In screen, common component include surface frame 31, PCB protective covers 32, liquid crystal display panel 4 (Open cell), chip on film 5 (i.e. COF,
Chip On Flex or Chip On Film), pcb board 6, center, backboard, heat sink 9, LED light bar, diaphragm 7, light guide plate 1,
Reflector plate 8 etc..Wherein, it is located at the surface frame 31 of front side and the PCB protective covers 32 for being located at rear side is adapted to be formed after lid closes and supplies other portions
The accommodating accommodating space of part；5 U-shaped setting of chip on film, the free end for being located at front side is connect with liquid crystal display panel 4, after being located at
The free end of side is connect with pcb board 6, and side entrance back module is placed between liquid crystal display panel 4 and pcb board 6；Center is matched with backboard
Installation is closed to form an assembly space, light guide plate 1 is located in the assembly space；Diaphragm is equipped between light guide plate 1 and liquid crystal display panel 4
7, which can be sticked to form by plural layers, and diaphragm 7 can be adhered to the trailing flank of liquid crystal display panel 4, can also be adhered to leaded light
The leading flank of plate 1, and the trailing flank of light guide plate 1 is sticked reflector plate 8；LED light bar includes substrate and is fixedly arranged on substrate
LED lamp bead, LED light bar interval be set to the lateral edges of light guide plate 1, and the lateral edges end face of light guide plate 1 is that light guide plate 1 enters light
The light-emitting surface 212 in face, LED lamp bead is opposite with the incidence surface of light guide plate 1；Meanwhile heat sink strip respectively with reflector plate 8, LED light bar
Substrate and backboard connect in order to radiate.By the above structure it is found that existing liquid crystal display not only complicated component is more, and
For safety, radiate and prevent incident side lamp shadow problem etc. it is many-sided consider, therefore its thickness is thicker, is unfavorable for liquid crystal
The ultra-thin ultra-narrow of screen.
In the present embodiment, since the edge of light guide plate 1 is equipped with the storage tank 11 in open setting, and it is equipped in storage tank 11
Conducting wire is simultaneously built-in with the light source assembly 2 being electrically connected with conducting wire, so structure setting has the following advantages：The first, by
It is directly with the conducting wire on light guide plate 1 be electrically connected in corresponding polarity, therefore can save in light source assembly 2
The common MCPCB plates 6 in electrical connection of light source assembly 2, to can realize it is a degree of subtract it is narrow；Second, light source assembly 2 is
It is directly fixed in the storage tank 11 at 1 edge of light guide plate, i.e., light guide plate 1 can match light source assembly 2 and be designed, in this way, logical
It crosses the integrated design and can effectively avoid alignment issues between light source assembly 2 and light guide plate 1, can not only solve to carry on the back because of side entering type
The demand that the light source assembly 2 that the ultra-thin ultra-narrow of optical mode group is brought aligns in high precision with light guide plate 1 can be also prevented from the root cause because of contraposition
Caused by bad the problems such as bright band lamp shadow, and then promote the yields of production；Third, by light source assembly 2 directly with light guide plate 1
Edge is fixedly connected, and the components such as center and backboard can be at least saved in traditional side entrance back module, in this way, not only saving
Material and energy conservation and environmental protection are saved, the further ultra-narrow ultrathin of side entrance back module is also helped；4th, due to light source assembly 2
It is directly to be connect with 1 edge of light guide plate, therefore light source assembly 2 can have that heat dissipation is bad, be easy to cause 2 He of light source assembly
The damage of light guide plate 1, and the present invention on LED luminescence units 21 by being arranged at least two radiating surfaces 214 and in radiating surface
Radiator structure is set on 214, so as to meet the higher radiating requirements of light source, is advantageously implemented the ultra-narrow of side entrance back module
Ultrathin.This above several respect integrate, and technical scheme of the present invention can more effectively realize the super of side entrance back module
Narrow ultrathin.
Herein specifically, in the present embodiment, light guide plate 1 is preferably glass light guide plate 1, certainly in other realities
It applies in example, light guide plate 1 can also select heat-resisting optical-grade transparent plastic plate, but in the present embodiment, since light source assembly 2 is
It is directly installed on light guide plate 1, therefore light guide plate 1 damages caused by thoroughly to prevent heat from gathering, light guide plate 1 should be by heat-resisting
The very high glass of coefficient is made.Here, to further decrease the thickness of display device, it can be used thickness very thin in the present embodiment
Glass light guide plate 1.
Referring to Figure 1 and Figure 3, in the present embodiment, further, the leading edge of 1 side of light guide plate, which outwardly protrudes, is provided with
Protrusion 12 is formed with the storage tank 11 being outwardly and rearwardly open with the rear side in protrusion 12；The connection of LED luminescence units 21
Face 213 is connect with the trailing flank of protrusion 12, the light-emitting surface 212 of light source assembly 2 and the incidence surface relative spacing of light guide plate 1.Tool
For body, the side edge for being equipped with the light guide plate 1 of storage tank 11 is L-shaped, and storage tank 11 can be, but not limited to following two
Mode is formed：The lateral margin end face of one monolithic glass light guide plate 1 is carried out Ultrasonic Milling or polished to carry out being processed into end by one
Face L-type, or it is L-shaped glass light guide plate 1 to make the end face of integral type using mold；Secondly, it is real as shown in Figure 4 second
It applies in example, by the front and back stacking of the neat glass light guide plate 1 in two block edge end faces, wherein the preceding light guide plate 131 positioned at front side compares position
Bigger in the rear light guide plate 141 of rear side, i.e. the lateral edges of preceding light guide plate 131 are outwardly protruded in the lateral edges of rear light guide plate 141, such as
This, the portion 12 that outwardly protrudes of preceding light guide plate 131 divides as protrusion 12, and in the rear side of protrusion 12 and rear light guide plate 141
Lateral edges form the storage tank 11 being outwardly and rearwardly open together.
Referring to Figure 1 and Figure 3, in the present embodiment, further, conducting wire is set to protrusion 12, LED luminescence units 21
By COB or COG (chip on glass), mode is fixedly connected with light guide plate 1, and is electrically connected with conducting wire.In other words,
LED luminescence units 21 can be directly fixed on the position that LED is corresponded on glass light guide plate 1 by COB modes, alternatively, passing through COG
Many LED luminescence units 21 are encapsulated and are tied on the position for corresponding to LED on light guide plate 1 by pattern.It is appreciated that LED
Luminescence unit 21 carries out the fixed modes of COB or COG on glass light guide plate 1, and it is thinner can be made conducting wire, so as to
Conducting wire is set to promote HDR (high dynamic range images, High-Dynamic Range) by meeting more ways to realize
Effect, or even can be driven by meeting one one and promote side entering type HDR image quality.In addition, when conducting wire is set to protrusion 12
When, metallic circuit can be made up in the electrical arrangement of circuit of silk-screen, or into the system of row line in such a way that TFT is at mould
Make, conducting wire can be carried out by the series winding and/or parallel way of actual design；Here, because LED circuit is simple, therefore only need
Single layer circuit can meet connection requirement, and because of process advantage, can also conducting wire be made narrow, therefore in identical width
Under degree, this conducting wire can also promote local backlight adjusting (i.e. LOCAL by realizing more ways to reach
Dimming effect).
Together with reference to Fig. 2, in the present embodiment, further, to improve light efficiency, LED luminescence units 21 include multiple strings
The positive and negative polarities of the LED wafer 211 of connection, LED luminescence units 21 are electrically connected with the corresponding pole in conducting wire respectively.Particularly,
Due to needing to do very thin conducting wire on the edge of glass light guide plate 1, thus its circuit can dash current will be smaller, be
Ensure light efficiency as far as possible and realize the subregion fining that sidelight local backlight is adjusted, it is preferable to use can reduce electricity in the present embodiment
The high-voltage LED chip 211 of stream.
With reference to Fig. 5, in the present embodiment, further, light source assembly 2 further includes phosphor strip 22, and phosphor strip 22 covers
The light-emitting surface 212 for covering LED luminescence units 21, alternatively, phosphor strip 22 is attached at the incidence surface of light guide plate 1.For example, when LED is sent out
When light unit 21 sends out blue light, so that it may excite the phosphor strip 22 of yellow to obtain the white light of mixing, certainly, in other implementations
In example, white light LEDs can also be used.In the inventive solutions, in 3rd embodiment as shown in Figure 5 and such as Fig. 6 institutes
In the fourth embodiment shown, the liquid crystal display as display device is in be arranged with surface frame 31, but the two embodiments is main
The difference is that in the third embodiment, phosphor strip 22 is arranged in the light-emitting surface 212 of covering LED luminescence units 21, and
In fourth embodiment, phosphor strip 22 is then attached at the incidence surface of light guide plate 1.In addition, being further ultra-narrow ultrathin, display dress
Setting can also be arranged in no surface frame 31, and visible 5th embodiment as shown in Figure 7 of concrete structure and the as shown in Figure 8 the 6th is implemented
Example, but also there is certain difference between the two embodiments, in the 5th embodiment, phosphor strip 22 shines in covering LED
The light-emitting surface 212 of unit 21 is arranged, and in the sixth embodiment, phosphor strip 22 is then attached at the incidence surface of light guide plate 1.
With reference to Fig. 5 to Fig. 8, in third to sixth embodiment, due to light source assembly 2 be directly on glass light guide plate 1
Conducting wire be electrically connected, and the light guide plate 1 of the glass heat transfer of itself and radianting capacity be limited, therefore this side entering type
Backlight module needs special heat radiation structure design to meet the higher radiating requirements of light source.It is appreciated that the setting can make LED
21 thermoelectricity of luminescence unit detaches, can be to a greater extent by heat derives, or even in other embodiments, is meeting LED heat dissipations
Under the premise of can also cancel traditional heat dissipation aluminum strip and realize narrower design.
In the inventive solutions, radiator structure includes metallic support, and particularly, metallic support preferably uses heat conduction
The high Al or Cu materials of coefficient, and the light reflectivity of the metallic support after treatment is preferably greater than 97%.Alternatively, reference together
Fig. 2, radiator structure include can reflection source EMC (Epoxy Molding Compound) holders and be wrapped in EMC holders
The cooling fin (not indicating) of 23 lateral surfaces, similarly, cooling fin is it is also preferred that Al or Cu are made.
Further, side entrance back module further includes reflector plate 8, and reflector plate 8 is overlapped the back side for being attached at light guide plate 1,
For example, 8 available refractive index of reflector plate is pasted onto being arranged in dot surface for glass light guide plate 1 in 1.2 low-refraction colloids below
The back side.Radiator structure further includes heat dissipation foil 25, which is preferably aluminium foil；The back side of the heat dissipation package reflector plate 8 of foil 25,
LED luminescence units 21 are away from the outside of the incidence surface of radiating surface 214 and protrusion 12 far from light guide plate 1 of light-emitting surface 212
Face is also prevented from the generation that steam enters and avoids light leakage phenomena in this way, can not only be effectively increased the product of radiating surface 214.
In addition, in the inventive solutions, for the area diaphragm 7 smaller than light guide plate 1 and liquid crystal display panel 4, colloid (example can be used
As but be not limited to the double-sided adhesive tape of VHB) diaphragm 7 is attached to the light-emitting surface of glass light guide plate 1, or by the diaphragm 7 of slimming into
Row is attached to the back side of liquid crystal display panel 4, is then sticked heat dissipation foil 25 at the back side of reflector plate 8, in this way, then can further will display dress
The very thin very narrow design set performs to ultimate attainment.
Further, gap filling of the LED luminescence units 21 between one end of protrusion 12 and heat dissipation foil 25 is led
Hot glue 24 or heat conduction foam.It is appreciated that the setting of the heat-conducting glue 24 or heat conduction foam is primarily used to LED luminescence units 21
Heat faster and better be transmitted on radiator structure.Right the design is without being limited thereto, for whole display device, in addition to
Except upper radiator structure, it can also increase fan in inside and radiate.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
In the scope of patent protection that other related technical areas are included in the present invention.
Claims (10)
1. a kind of side entrance back module, which is characterized in that including：
Light guide plate, the edge of the light guide plate is provided with the storage tank in open setting, and conductor wire is equipped in the storage tank
Road；And
Light source assembly, the light source assembly are built in the storage tank, and are electrically connected with the conducting wire；The light guide plate
Incidence surface be the storage tank the trough wall surface close to the light guide plate center, the conducting wire is set to the storage tank
On trough wall surface far from the light guide plate center；The light source assembly includes the length side of multiple incidence surfaces along the light guide plate
The LED luminescence units laid to interval, the LED luminescence units include light-emitting surface, joint face and at least two radiating surfaces,
The incidence surface relative spacing of the light-emitting surface and the light guide plate, the joint face are connect with the light guide plate, the radiating surface
It is equipped with radiator structure.
2. side entrance back module as described in claim 1, which is characterized in that the leading edge convex of the light guide plate side
Go out to be provided with protrusion, to be formed with the storage tank being outwardly and rearwardly open on rear side of the protrusion；
The joint face of the LED luminescence units is connect with the trailing flank of the protrusion.
3. side entrance back module as claimed in claim 2, which is characterized in that the light guide plate is glass light guide plate.
4. side entrance back module as claimed in claim 2, which is characterized in that the conducting wire is set to the protrusion,
The LED luminescence units are fixedly connected by COB or COG modes with the light guide plate, and are electrically connected with the conducting wire.
5. side entrance back module as claimed in claim 4, which is characterized in that the LED luminescence units include multiple series connection
LED wafer, the positive and negative polarities of the LED luminescence units connect with the counter electrode in the conducting wire respectively.
6. side entrance back module as claimed in claim 4, which is characterized in that the light source assembly further includes phosphor strip,
The phosphor strip covers the light-emitting surface of the LED luminescence units, alternatively, the phosphor strip is attached at the light guide plate
Incidence surface.
7. such as claim 1 to 6 any one of them side entrance back module, which is characterized in that the radiator structure includes gold
Belong to holder, alternatively, the radiator structure include can reflection source EMC holders and be wrapped in EMC stent outers face
Cooling fin.
8. side entrance back module as claimed in claim 7, which is characterized in that the side entrance back module further includes reflection
Piece, the reflector plate overlapping are attached at the back side of the light guide plate；The radiator structure further includes heat dissipation foil, the heat dissipation foil packet
The back side of the reflector plate, the LED luminescence units are wrapped up in away from the radiating surface of the light-emitting surface and the protrusion far from institute
State the lateral surface of the incidence surface of light guide plate.
9. side entrance back module as claimed in claim 8, which is characterized in that the LED luminescence units deviate from the protrusion
Gap filling between the one end in portion and the heat dissipation foil has heat-conducting glue or heat conduction foam.
10. a kind of display device, which is characterized in that include the side entrance back mould as described in claim 1 to 9 any one
Group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145731.3A CN108345146A (en) | 2018-02-11 | 2018-02-11 | Side entrance back module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145731.3A CN108345146A (en) | 2018-02-11 | 2018-02-11 | Side entrance back module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108345146A true CN108345146A (en) | 2018-07-31 |
Family
ID=62960327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810145731.3A Pending CN108345146A (en) | 2018-02-11 | 2018-02-11 | Side entrance back module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108345146A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061791A (en) * | 2018-08-08 | 2018-12-21 | 深圳市华星光电技术有限公司 | A kind of light guide plate and backlight module |
| CN109283611A (en) * | 2018-10-22 | 2019-01-29 | 东莞市银泰丰光学科技有限公司 | A kind of guide-lighting mould group and preparation method thereof using ITO conduction |
| CN109375420A (en) * | 2018-11-30 | 2019-02-22 | 武汉华星光电技术有限公司 | Backlight module |
| CN110677518A (en) * | 2019-09-20 | 2020-01-10 | 深圳市德智欣科技有限公司 | Bang special-shaped module and manufacturing method thereof |
| CN113126197A (en) * | 2019-12-30 | 2021-07-16 | 海信视像科技股份有限公司 | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061791A (en) * | 2018-08-08 | 2018-12-21 | 深圳市华星光电技术有限公司 | A kind of light guide plate and backlight module |
| CN109283611A (en) * | 2018-10-22 | 2019-01-29 | 东莞市银泰丰光学科技有限公司 | A kind of guide-lighting mould group and preparation method thereof using ITO conduction |
| CN109283611B (en) * | 2018-10-22 | 2021-02-23 | 东莞市银泰丰光学科技有限公司 | Light guide module conducting electricity by using Indium Tin Oxide (ITO) and preparation method thereof |
| CN109375420A (en) * | 2018-11-30 | 2019-02-22 | 武汉华星光电技术有限公司 | Backlight module |
| CN110677518A (en) * | 2019-09-20 | 2020-01-10 | 深圳市德智欣科技有限公司 | Bang special-shaped module and manufacturing method thereof |
| CN110677518B (en) * | 2019-09-20 | 2021-03-19 | 深圳市德智欣科技有限公司 | Bang special-shaped module and manufacturing method thereof |
| CN113126197A (en) * | 2019-12-30 | 2021-07-16 | 海信视像科技股份有限公司 | Display device |
| CN113126197B (en) * | 2019-12-30 | 2022-10-18 | 海信视像科技股份有限公司 | Display device |
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Application publication date: 20180731 |