CN105042427A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN105042427A CN105042427A CN201510495658.9A CN201510495658A CN105042427A CN 105042427 A CN105042427 A CN 105042427A CN 201510495658 A CN201510495658 A CN 201510495658A CN 105042427 A CN105042427 A CN 105042427A
- Authority
- CN
- China
- Prior art keywords
- ladder
- prismatic lens
- backlight module
- diffusion sheet
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
Abstract
The invention discloses a backlight module. The backlight module comprises a reflector plate, a light guiding plate, a diffusion sheet, a prismatic lens, light-emitting diodes and a backboard. The light guiding plate is located on the reflector plate. The diffusion sheet is located on the light guiding plate. The prismatic lens is located on the diffusion sheet. The light-emitting diodes are located on the lateral sides of the light guiding plate. The backboard is in the shape of a box body. The upper surface and one side face of the backboard are each provided with an opening. The reflector plate, the light guiding plate, the diffusion sheet, the prismatic lens and the light-emitting diodes are all packaged in the backboard. According to the backlight module, assembling time is effectively saved, the assembly integration degree is improved, the assembling alignment manner is simple, and therefore production efficiency is improved.
Description
[technical field]
The present invention relates to Display Technique field, particularly a kind of backlight module and display unit.
[background technology]
Along with the develop rapidly of mobile phone industry, also drive developing rapidly of periphery industry.Therefore also promote to some extent the requirement of backlight module, key is the requirements such as production efficiency, brightness and homogeneity.Because brightness and homogeneity depend on technical development, so the smaller input cost in other words in space promoted is larger, and enhance productivity, meet the speed that mobile phone updates fast, us can be made to base oneself upon in numerous backlight module factories unbeaten.
In the prior art, the assembling mode of backlight module is: first light guide plate and lamp bar are fitted, and then fits with glue frame together, next assembles diffusion sheet again, upper and lower prismatic lens, finally attaches black mouth word glue.But this assembling mode is more loaded down with trivial details, and each process need to locate alone just can ensure assemble accuracy rate, so just greatly reduce speed of production.
Therefore, be necessary to propose a kind of new technical scheme, to solve the problems of the technologies described above.
[summary of the invention]
The object of the present invention is to provide a kind of backlight module and display unit, it effectively can save installation time, improves the integration degree of assembling, and assembling alignment mode is simple, thus enhances productivity.
For solving the problem, technical scheme of the present invention is as follows:
A kind of backlight module, described backlight module comprises:
One reflector plate;
One light guide plate, is positioned at above described reflector plate;
One diffusion sheet, is positioned at above described light guide plate;
One prismatic lens, is positioned at above described diffusion sheet;
One light emitting diode, is positioned at described light guide plate side;
One backboard, described backboard is cassette shapes, and the upper surface of described backboard and wherein face, side all have opening; Described reflector plate, described light guide plate, described diffusion sheet, described prismatic lens and described light emitting diode are all packaged in described backboard.
Preferably, in described backlight module, described prismatic lens comprises prismatic lens and lower prismatic lens, and described lower prismatic lens is positioned at above described diffusion sheet; Described upper prismatic lens is positioned at above described lower prismatic lens.
Preferably, in described backlight module, described light guide plate is stairstepping, and described light guide plate has the first ladder, the second ladder and the 3rd ladder; Wherein, described 3rd ladder is higher than described second ladder, and described second ladder is higher than described first ladder; Described diffusion sheet is positioned at above described first ladder, and described lower prismatic lens is positioned at above described second ladder and covers described diffusion sheet, and described upper prismatic lens is positioned at above described 3rd ladder and covers described lower prismatic lens.
Preferably, in described backlight module, described diffusion sheet invests above described first ladder by the first double faced adhesive tape, described lower prismatic lens invests above described second ladder by the second double faced adhesive tape, described upper prismatic lens invests above described 3rd ladder by the 3rd double faced adhesive tape, wherein, described second double faced adhesive tape height adds the summation of the difference of the second ladder and the first ladder, equal the summation that the first double faced adhesive tape height adds described diffusion sheet height, described 3rd double faced adhesive tape height adds the summation of the difference of the 3rd ladder and the second ladder, equal the summation that the second double faced adhesive tape height adds described lower prismatic lens height.
Preferably, in described backlight module, described reflector plate both sides all have projection.
Preferably, in described backlight module, on backboard, the position of corresponding described projection is provided with groove, and described projection is arranged in described groove.
Preferably, in described backlight module, described backlight module also comprises:
One glue frame, is positioned at described light emitting diode side, and described light emitting diode side is the side away from described light guide plate.
Preferably, in described backlight module, described glue frame is invested above described reflector plate by double faced adhesive tape.
Preferably, in described backlight module, described glue frame is strip.
A kind of display unit, comprise backlight module and be arranged at the display floater above described backlight module, described backlight module comprises:
One reflector plate;
One light guide plate, is positioned at above described reflector plate;
One diffusion sheet, is positioned at above described light guide plate;
One prismatic lens, is positioned at above described diffusion sheet;
One light emitting diode, is positioned at described light guide plate side;
One backboard, described backboard is cassette shapes, and the upper surface of described backboard and wherein face, side all have opening; Described reflector plate, described light guide plate, described diffusion sheet, described prismatic lens and described light emitting diode are all packaged in described backboard.
Hinge structure, by reflector plate, light guide plate, diffusion sheet, prismatic lens and light emitting diode being all packaged in backboard, so just effectively can save installation time, improving the integration degree of assembling, assembling alignment mode is simple, thus enhances productivity.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below.
[accompanying drawing explanation]
The structural representation of the backlight module that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the backboard that Fig. 2 A and Fig. 2 B provides for the embodiment of the present invention;
The structural representation of the reflector plate that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the light guide plate that Fig. 4 A and Fig. 4 B provides for the embodiment of the present invention;
The structural representation of the glue frame that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the backlight module that Fig. 6 provides for the embodiment of the present invention.
[detailed description of the invention]
The word " embodiment " that this description uses means to be used as example, example or illustration.In addition, the article " " used in this description and claims usually can be interpreted as meaning " one or more ", unless otherwise or from context clear guiding singulative.
In embodiments of the present invention, by reflector plate, light guide plate, diffusion sheet, prismatic lens and light emitting diode being all packaged in backboard, so just effectively can save installation time, improving the integration degree of assembling, assembling alignment mode is simple, thus enhances productivity.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
Referring to Fig. 1, is the structural representation of the backlight module that the embodiment of the present invention provides; For convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.
Described backlight module comprises: reflector plate 100, light guide plate 101, diffusion sheet 102, prismatic lens, light emitting diode 103 and a backboard 104; Wherein, described light guide plate 101 is positioned at above described reflector plate 100; Described diffusion sheet 102 is positioned at above described light guide plate 101; Described prismatic lens is positioned at above described diffusion sheet 102; Described light emitting diode 103 is positioned at described light guide plate 101 side.
Referring to Fig. 2 A and Fig. 2 B, is the structural representation of the backboard that the embodiment of the present invention provides, and described backboard 104 is in cassette shapes, and the upper surface of described backboard 104 and wherein face, side all have opening; Described reflector plate 100, described light guide plate 101, described diffusion sheet 102, described prismatic lens and described light emitting diode 103 are all packaged in described backboard 104.
In embodiments of the present invention, described prismatic lens comprises prismatic lens 105 and lower prismatic lens 106, and described lower prismatic lens 106 is positioned at above described diffusion sheet 102; Described upper prismatic lens 105 is positioned at above described lower prismatic lens 106.
As one embodiment of the present invention, referring to Fig. 3, is the structural representation of the reflector plate that the embodiment of the present invention provides; Described reflector plate 100 both sides all have protruding 107.Wherein, described protruding 107 is fixing for abutting with described backboard 104 side.
As another preferred embodiment of the present invention, on backboard 104, the corresponding described position of protruding 107 is provided with groove, and described protruding 107 are arranged in described groove, effectively can fix described reflector plate 100 like this.
As another preferred embodiment of the present invention, referring to Fig. 4 A and Fig. 4 B, is the structural representation of the light guide plate that the embodiment of the present invention provides.Described light guide plate 101 is in stairstepping, and described light guide plate 101 has the first ladder 1011, second ladder 1012 and the 3rd ladder 1013; Wherein, described 3rd ladder 1013 is higher than described second ladder 1012, and described second ladder 1012 is higher than described first ladder 1011; Described diffusion sheet 102 is positioned at above described first ladder 1011, described lower prismatic lens 106 is positioned at above described second ladder 1012 and covers described diffusion sheet 102, and described upper prismatic lens 105 is positioned at above described 3rd ladder 1013 and covers described lower prismatic lens 106.
In embodiments of the present invention, described diffusion sheet 102 is attached at above described first ladder 1011 by the first double faced adhesive tape 1021, described lower prismatic lens 106 is attached at above described second ladder 1012 by the second double faced adhesive tape 1022, namely between described lower prismatic lens 106 and described second ladder 1012, there is described second double faced adhesive tape 1022, and cover between the described lower prismatic lens 106 of that part of described diffusion sheet 102 and described diffusion sheet 102 described second double faced adhesive tape 1022 is not set.Described upper prismatic lens 105 is attached at above described 3rd ladder 1013 by the 3rd double faced adhesive tape 1023, namely between described upper prismatic lens 105 and described 3rd ladder 1013, there is described 3rd double faced adhesive tape 1023, and cover between the described upper prismatic lens 105 of that part of described lower prismatic lens 106 and described lower prismatic lens 106 described 3rd double faced adhesive tape 1023 is not set.Wherein, described second double faced adhesive tape 1022 highly adds the summation of the difference of the second ladder 1012 and the first ladder 1011, equal the summation that the first double faced adhesive tape 1021 highly adds described diffusion sheet 102 height, described 3rd double faced adhesive tape 1023 highly adds the summation of the difference of the 3rd ladder 1013 and the second ladder 1012, equals the summation that the second double faced adhesive tape 1022 highly adds described lower prismatic lens 106 height.But the benefit of above-mentioned such design is: fit described diffusion sheet 102, on prismatic lens 105 and lower prismatic lens 106 time, do not produce unnecessary gap as much as possible, to thinning module thickness, improve reliability all beneficial.And the laminating type of this dislocation can allow trilamellar membrane sheet (i.e. described diffusion sheet 102, upper prismatic lens 105 and lower prismatic lens 106) all have enough laminating length, so, also can improve reliability.
In embodiments of the present invention, referring to Fig. 5, is the structural representation of the glue frame that the embodiment of the present invention provides.Described backlight module also comprises: a glue frame 108, and described glue frame 108 is positioned at described light emitting diode 103 side, and described light emitting diode 103 side is the side away from described light guide plate 101.Described glue frame 108 is invested above described reflector plate 100 by double faced adhesive tape.Described glue frame 108 is in strip.Described glue frame 108 is for fixing described light emitting diode 103.
In embodiments of the present invention, the assembling mode of backlight module is: by light emitting diode together with assembling light guiding plate, then in other side glue frame being fixed on light emitting diode, above following the first ladder more described diffusion sheet being invested described light guide plate by the first double faced adhesive tape, above the second ladder described lower prismatic lens being invested described light guide plate by the second double faced adhesive tape, above the 3rd ladder described upper prismatic lens being invested described light guide plate by the 3rd double faced adhesive tape, then reflector plate is attached to by double faced adhesive tape in the sub-fraction of light guide plate lower surface, as shown in Figure 6.Then the direction of arrow as Fig. 6 is directly pushed in backboard, is then carrying out attaching mouth word glue.The feature of this assembling mode is that integration degree is high in whole assembling process, and assembling alignment mode is simple.
The embodiment of the present invention additionally provides a kind of display unit, and it comprises backlight module and is arranged at the display floater above described backlight module.The structure of described backlight module is described in detail above-mentioned, therefore repeats no more.
In sum, the embodiment of the present invention, by reflector plate, light guide plate, diffusion sheet, prismatic lens and light emitting diode being all packaged in backboard, so just effectively can save installation time, improves the integration degree of assembling, assembling alignment mode is simple, thus enhances productivity.
Although illustrate and describe the present invention relative to one or more implementation, those skilled in the art are based on to the reading of this description and accompanying drawing with understand and will expect equivalent variations and amendment.The present invention includes all such amendments and modification, and only limited by the scope of claims.Especially about the various functions performed by said modules, term for describing such assembly is intended to the random component (unless otherwise instructed) corresponding to the appointed function (such as it is functionally of equal value) performing described assembly, even if be not structurally equal to the open structure of the function in the exemplary implementations performing shown in this article description.In addition, although the special characteristic of this description relative in some implementations only one be disclosed, this feature can with can be such as expect and other Feature Combinations one or more of other favourable implementations for given or application-specific.And, " comprise " with regard to term, " having ", " containing " or its distortion be used in detailed description of the invention or claim with regard to, such term is intended to comprise " to comprise " similar mode to term.
In sum; although the present invention discloses as above with preferred embodiment; but above preferred embodiment is also not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (10)
1. a backlight module, is characterized in that, described backlight module comprises:
One reflector plate;
One light guide plate, is positioned at above described reflector plate;
One diffusion sheet, is positioned at above described light guide plate;
One prismatic lens, is positioned at above described diffusion sheet;
One light emitting diode, is positioned at described light guide plate side;
One backboard, described backboard is cassette shapes, and the upper surface of described backboard and wherein face, side all have opening; Described reflector plate, described light guide plate, described diffusion sheet, described prismatic lens and described light emitting diode are all packaged in described backboard.
2. backlight module according to claim 1, is characterized in that, described prismatic lens comprises prismatic lens and lower prismatic lens, and described lower prismatic lens is positioned at above described diffusion sheet; Described upper prismatic lens is positioned at above described lower prismatic lens.
3. backlight module according to claim 2, is characterized in that, described light guide plate is stairstepping, and described light guide plate has the first ladder, the second ladder and the 3rd ladder; Wherein, described 3rd ladder is higher than described second ladder, and described second ladder is higher than described first ladder; Described diffusion sheet is positioned at above described first ladder, and described lower prismatic lens is positioned at above described second ladder and covers described diffusion sheet, and described upper prismatic lens is positioned at above described 3rd ladder and covers described lower prismatic lens.
4. backlight module according to claim 3, it is characterized in that, described diffusion sheet invests above described first ladder by the first double faced adhesive tape, described lower prismatic lens invests above described second ladder by the second double faced adhesive tape, described upper prismatic lens invests above described 3rd ladder by the 3rd double faced adhesive tape, wherein, described second double faced adhesive tape height adds the summation of the difference of the second ladder and the first ladder, equal the summation that the first double faced adhesive tape height adds described diffusion sheet height, described 3rd double faced adhesive tape height adds the summation of the difference of the 3rd ladder and the second ladder, equal the summation that the second double faced adhesive tape height adds described lower prismatic lens height.
5. backlight module according to claim 1, is characterized in that, described reflector plate both sides all have projection.
6. backlight module according to claim 5, is characterized in that, on backboard, the position of corresponding described projection is provided with groove, and described projection is arranged in described groove.
7. backlight module according to claim 1, is characterized in that, described backlight module also comprises:
One glue frame, is positioned at described light emitting diode side, and described light emitting diode side is the side away from described light guide plate.
8. backlight module according to claim 7, is characterized in that, described glue frame is invested above described reflector plate by double faced adhesive tape.
9. backlight module according to claim 7, is characterized in that, described glue frame is strip.
10. a display unit, comprise backlight module and be arranged at the display floater above described backlight module, it is characterized in that, described backlight module comprises:
One reflector plate;
One light guide plate, is positioned at above described reflector plate;
One diffusion sheet, is positioned at above described light guide plate;
One prismatic lens, is positioned at above described diffusion sheet;
One light emitting diode, is positioned at described light guide plate side;
One backboard, described backboard is cassette shapes, and the upper surface of described backboard and wherein face, side all have opening; Described reflector plate, described light guide plate, described diffusion sheet, described prismatic lens and described light emitting diode are all packaged in described backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495658.9A CN105042427B (en) | 2015-08-13 | 2015-08-13 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495658.9A CN105042427B (en) | 2015-08-13 | 2015-08-13 | Backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105042427A true CN105042427A (en) | 2015-11-11 |
| CN105042427B CN105042427B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510495658.9A Active CN105042427B (en) | 2015-08-13 | 2015-08-13 | Backlight module and display device |
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| CN (1) | CN105042427B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896582A (en) * | 2017-04-25 | 2017-06-27 | 武汉华星光电技术有限公司 | Backlight module and display |
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Also Published As
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| CN105042427B (en) | 2017-05-17 |
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