CN108508650A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN108508650A CN108508650A CN201710103063.3A CN201710103063A CN108508650A CN 108508650 A CN108508650 A CN 108508650A CN 201710103063 A CN201710103063 A CN 201710103063A CN 108508650 A CN108508650 A CN 108508650A
- Authority
- CN
- China
- Prior art keywords
- light
- backlight module
- guide plate
- grooves
- groove
- 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.)
- Pending
Links
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
Abstract
The present invention is about a kind of backlight module, and it includes frame, light guide plate and light-emitting components.Frame includes bottom, and bottom has guide-lighting micro-structure.Light guide plate is set in frame.Light-emitting component is set to the side of light guide plate, and in frame.Wherein light-emitting component emits beam, and light reflexes to light guide plate through guide-lighting micro-structure.Such light-emitting component emits beam, and light is irradiated in the guide-lighting micro-structure of frame, and light is reflexed to light guide plate.Furthermore metallic diaphragm is formed in guide-lighting micro-structure with vacuum coating, further to promote the light reflecting effect of guide-lighting micro-structure.
Description
Technical field
The present invention is real about a kind of backlight module, espespecially a kind of backlight module by Frame Design.
Background technology
In general, backlight module waits indispensable component comprising light source, light guide plate, optical film, reflector plate, framework ..., this
The structure composition of a little components determines the quality good or not of the offer area source of a backlight module with design.That is, light source
Most of opticpath can sequentially via light guide plate, reflector plate or framework, optical film, then be emitted an area source to display
Panel.Since the reflectivity of reflector plate is very high, the light from light guide plate spill and leakage is reflected back in light guide plate can again, therefore being must
The component wanted.Only, reflector plate can increase assembling procedure, there is the risk for reducing yield.
Therefore the present invention is directed to the shortcomings that known techniques and improves, and a kind of backlight module is provided, it is directed to frame
Structure carries out improvement design, and such mode can reduce the use of a piece of reflector plate.In addition, also can further utilize frame structure
The design method for carrying out optics leaded light, enables frame to further increase additional effect, such as can provide the light of reflection
It is restrained towards specific direction, improves the briliancy at the positive visual angle of area source.
Invention content
The purpose of the present invention, is to provide a kind of backlight module, can penetrate the structure design of frame, save reflection
The use of piece, and, to adjust direction and the light type of light light extraction, improve the briliancy at the positive visual angle of backlight module area source.
The present invention provides a kind of backlight module, and it includes a frame, a metallic diaphragm, a light guide plate and at least one luminous members
Part.Frame includes a bottom, and bottom has a guide-lighting micro-structure.Metallic diaphragm is set in guide-lighting micro-structure, can use
Plated film or the mode of coating are arranged, as long as it is all this that the metal of high reflectance or metal mixed, which lack part non-metallic material,
In the range of invention.Light guide plate is located on guide-lighting micro-structure and metallic diaphragm.Light-emitting component is set to the side of light guide plate, and every
One light-emitting component all has the light-emitting surface towards light guide plate.Wherein light is by the anti-of guide-lighting micro-structure and the metallic diaphragm
It penetrates, can re-shoot and return in light guide plate.
The present invention provides an embodiment, and it is that (each V-groove is for example for a plurality of V-grooves to disclose the leaded light micro-structure
Be formed between two neighboring diamonds items), (it is adjacent that each wave V-groove is for example formed in two to a plurality of wave V-grooves
Between wavy diamond shape item), a plurality of trapezoidal grooves or plurality of bump micro-structure.
The present invention provide an embodiment, disclose those V-grooves, those wave V-grooves, those trapezoidal grooves and those
Convex block micro-structure is arranged with regular fashion or irregular mode is arranged.
The present invention provides an embodiment, discloses the groove extending direction of V-groove, wave V-groove or trapezoidal groove
Perpendicular to the light-emitting surface of light-emitting component, and the slot bottom of each V-groove, each wave V-groove or each trapezoidal groove
Between angle is 60 degree to 100 degree.
The present invention provides an embodiment, is that it is light emitting diode to disclose an at least light-emitting component.
Description of the drawings
Figure 1A：It is the schematic diagram of the first embodiment of the backlight module of the present invention；
Figure 1B：It is the opticpath side view 1 of the first embodiment of the backlight module of the present invention；
Fig. 1 C：It is the opticpath side view 2 of the first embodiment of the backlight module of the present invention；
Fig. 2：It is the opticpath side view of the second embodiment of the backlight module of the present invention；
Fig. 3 A：It is the schematic diagram of the 3rd embodiment of the backlight module of the present invention；
Fig. 3 B：It is the opticpath side view of the 3rd embodiment of the backlight module of the present invention；
Fig. 4 A：It is the schematic diagram of the fourth embodiment of the backlight module of the present invention；
Fig. 4 B：It is the opticpath side view of the fourth embodiment of the backlight module of the present invention；
Fig. 5 A：It is the schematic diagram of the 5th embodiment of the backlight module of the present invention；And
Fig. 5 B：It is the opticpath side view of the 5th embodiment of the backlight module of the present invention.
【Figure number is to as directed】
1 backlight module
10 frames
100 light
110 bottoms
111 guide-lighting micro-structures
112 V-grooves
1120 V words are open
113 wave V-grooves
114 convex block micro-structures
115 trapezoidal grooves
120 metallic diaphragms
20 light guide plates
30 light-emitting components
301 light-emitting surfaces
θ1Sharp angle
θ2Obtuse angle angle
Specific implementation mode
In order to make the present invention structure feature and it is reached the effect of have a better understanding and awareness, spy with preferably
Embodiment and cooperation detailed description, are described as follows：
A to Fig. 1 C is please referred to Fig.1, schematic diagram, opticpath side for the first embodiment of the backlight module of the present invention
View one and opticpath side view two.As shown, the present embodiment be a kind of backlight module 1, be applied to mobile phone, tablet or
The light source of the various liquid crystal display panel such as computer, backlight module 1 is as the function for providing panel light source.Backlight module 1 wraps
Containing a frame 10, a metallic diaphragm 120, a light guide plate 20 and an at least light-emitting component 30.
Frame 10 includes a bottom 110, and bottom 110 has a plurality of guide-lighting micro-structures 111 (V-groove 112).Metal film
Layer 120 is set in a manner of plated film or coating in guide-lighting micro-structure 111.Light guide plate 20 is set in frame 10.At least one
Light-emitting component 30 is set to the side of light guide plate 20, and in frame 10, and wherein light-emitting component 30 has towards light guide plate 20
A light-emitting surface 301.After 30 spontaneous smooth surface 301 of light-emitting component sends out a light 100 and is incident in light guide plate 20, light 100
Part comes out from 20 lower section spill and leakage of light guide plate, guide-lighting micro-structure 111 and the metallic diaphragm being irradiated on the bottom 110 of frame 10
Direction is reflected and changed after 120, to which re-incident is back in light guide plate 20.There is no need to additional again for the bottom of such frame 10
A piece of reflector plate is added, and due to the relationship of V-groove 112, reflected light line is in the direction (side X of parallel light-emitting surface 301
To and -X direction) on can be restrained again, and reach and overlook (Z-direction) light extraction briliancy for seeing from the top of light guide plate 20 and have
It is promoted.
From the above, light-emitting component 30 can be light emitting diode.The part surface of bottom 10 has most leaded lights micro-
Structure 111, guide-lighting micro-structure 111 can be a plurality of V-grooves, a plurality of wave V-grooves, a plurality of trapezoidal grooves or multiple
Several convex block micro-structures.The shape of the above-mentioned guide-lighting micro-structure 111 about frame 10 adjusts according to the demand of user, and energy
(not shown) is arranged with regularly arranged setting or irregular alignment in guide-lighting micro-structure 111 according to the demand of user.Also, metal
The mode of vacuum coating shape may be used in film layer 120 or the mode of coating is formed in guide-lighting micro-structure 111.Through metal film
The high reflection effect of layer 120 makes light 100 have good reflecting effect, replaces the function of old reflector plate.
Furthermore the groove extending direction of V-groove, wave V-groove or trapezoidal groove is substantially perpendicular to luminous member
The light-emitting surface 301 of part 30, and the folder of the slot bottom of each V-groove, each wave V-groove or each trapezoidal groove
Between angle is 60 degree to 100 degree.
Referring back to Fig. 1 C, guide-lighting micro-structure 111 is a plurality of V-grooves 112, the slot bottom of each V-groove 112
Angle can be between 60 degree to 100 degree.In this present embodiment, the angle of the slot bottom of each V-groove 112 is an acute angle angle
Spend θ1, light-emitting component 30 is set to the side of light guide plate 20 and guide-lighting micro-structure 111.
In this present embodiment, the light 100 that light-emitting component 30 is sent out is incident in light guide plate 20, the light of a portion
100 can be reflected light extraction from inside to outside by light guide plate 20, and the light 100 of another part can then be led from light guide plate 20 is interior to lower spill and leakage court
Light micro-structure 111 and the direction of metallic diaphragm 120 are advanced.Each V-groove 112 by two inclined-planes form tool it is angled recessed
Slot, after light 100 is irradiated in metallic diaphragm 120 on surface (two inclined-planes) of each V-groove 112, in addition to being reflected back toward
Outer in light guide plate 20, reflected light line can carry out the convergence of light travel angle again in X-direction and -X direction simultaneously,
Promote the light extraction briliancy of Z-direction.Also that is, the light-emitting surface briliancy of light guide plate 20 can be promoted.
Also referring to Fig. 2, for the opticpath side view of the second embodiment of the backlight module of the present invention.As schemed
To show, the present embodiment different from the first embodiment is, a plurality of V-grooves 112 of the guide-lighting micro-structure 111 of the present embodiment,
And the angle of the slot bottom of each V-groove 112 is an obtuse angle angle, θ2.It can be influenced about the slot bottom angle of V-groove 112
The light extraction light type of backlight module 1.The angle of the slot bottom of above-mentioned V-groove 112 adjusts according to the demand of user.
Fig. 3 A and Fig. 3 B are please referred to, the schematic diagram for the 3rd embodiment of the backlight module of the present invention and light path side view
Figure.As shown, the present embodiment different from the first embodiment is, the guide-lighting micro-structure 111 of the present embodiment is a plurality of waves
Unrestrained V-groove 113.100 it is irradiated in wave V-groove 113 when light-emitting component 30 emits beam, and light 100 is because of wave V-type ditch
The structure of slot 113, and the effect for making the front and back height of the light type of 1 emitted light 100 of backlight module differ.In addition, wave V-type ditch
The top part of the arc crest line of prism structure (prism) between slot 113 can contact the light guide plate 20 for heading on top
Bottom surface so that the bottom surface of light guide plate 20 will not damage other most of crest line regions of prism structure.
Fig. 4 A and Fig. 4 B are please referred to, the schematic diagram for the 3rd embodiment of the backlight module of the present invention and light path side view
Figure.As shown, the present embodiment different from the first embodiment is, the guide-lighting micro-structure 111 of the present embodiment is a plurality of convex
Block micro-structure 114, convex block micro-structure 114 are arranged in the bottom of frame 10 110.When light 100 is irradiated in guide-lighting micro-structure
111 (convex block micro-structures 114), it will cause the effects that light 100 has astigmatism so that outgoing light homogeneity is promoted.
Fig. 5 A and Fig. 5 B are please referred to, the schematic diagram for the fourth embodiment of the backlight module of the present invention and light path side view
Figure.As shown, the present embodiment different from the first embodiment is, the guide-lighting micro-structure 111 of the present embodiment is a plurality of ladders
Shape groove 115.Each ladder type groove 115 has a bottom surface and both sides inclined-plane.It 100 is irradiated in when light-emitting component 30 emits beam
The both sides inclined-plane of guide-lighting micro-structure 111 (ladder type groove 115), ladder type groove 115 can reach V-type ditch in similar first embodiment
The effect of slot 112, it is towards Z-direction and Y that the bottom surface of ladder type groove 115, which then makes the reflection direction of light 100 have increase some,
Advance in direction.
Above is only presently preferred embodiments of the present invention, are not used for limiting the scope of implementation of the present invention, Fan Yibenfa
The equivalent changes and modifications carried out by shape, construction, feature and spirit described in bright right, should all be included in the present invention
Right in.
Claims (5)
1. a kind of backlight module, which is characterized in that include：
One frame, including a bottom, which has a plurality of guide-lighting micro-structures；
One metallic diaphragm is set in those guide-lighting micro-structures；
One light guide plate is set in the frame；And
An at least light-emitting component is set to the side of the light guide plate, which has the light-emitting surface towards the light guide plate.
2. backlight module as described in claim 1, which is characterized in that wherein those guide-lighting micro-structures be a plurality of V-grooves,
A plurality of wave V-grooves, a plurality of trapezoidal grooves or plurality of bump micro-structure.
3. backlight module as claimed in claim 2, which is characterized in that wherein those V-grooves, those wave V-grooves, should
A little trapezoidal grooves are arranged with regular fashion with those convex block micro-structures or irregular mode is arranged.
4. backlight module as claimed in claim 2, which is characterized in that wherein those V-grooves, those wave V-grooves or
Be that the groove of those trapezoidal grooves extends perpendicularly to the light-emitting surface of the light-emitting component, and each V-groove, it is each should
The angle of the slot bottom of wave V-groove or each trapezoidal groove is between 60 degree to 100 degree.
5. backlight module as described in claim 1, which is characterized in that wherein an at least light-emitting component is a light-emitting diodes
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103063.3A CN108508650A (en) | 2017-02-24 | 2017-02-24 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103063.3A CN108508650A (en) | 2017-02-24 | 2017-02-24 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108508650A true CN108508650A (en) | 2018-09-07 |
Family
ID=63372856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710103063.3A Pending CN108508650A (en) | 2017-02-24 | 2017-02-24 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108508650A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344674A (en) * | 2007-07-12 | 2009-01-14 | 颖台科技股份有限公司 | Optical film and manufacturing method thereof, and backlight module using the same |
| CN101749561A (en) * | 2008-12-17 | 2010-06-23 | 胜华科技股份有限公司 | Backlight module and display device applying same |
| CN202613098U (en) * | 2012-01-13 | 2012-12-19 | 上海向隆电子科技有限公司 | Light emitting device |
-
2017
- 2017-02-24 CN CN201710103063.3A patent/CN108508650A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344674A (en) * | 2007-07-12 | 2009-01-14 | 颖台科技股份有限公司 | Optical film and manufacturing method thereof, and backlight module using the same |
| CN101749561A (en) * | 2008-12-17 | 2010-06-23 | 胜华科技股份有限公司 | Backlight module and display device applying same |
| CN202613098U (en) * | 2012-01-13 | 2012-12-19 | 上海向隆电子科技有限公司 | Light emitting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7156548B2 (en) | Light guide plate with v-shaped grooves and backlight module incorporating same | |
| CN101097349B (en) | Backlight assembly and liquid crystal display device having the same | |
| US9983436B2 (en) | Backlight module and display device | |
| KR100828409B1 (en) | Liquid crystal display | |
| CN104781603B (en) | Light supply apparatus | |
| CN101004253B (en) | Light guide panel and display device employing the same | |
| CN100552511C (en) | Back light unit | |
| US9535204B2 (en) | Illumination apparatus having light guide plate with curvedly tapered light coupling portion | |
| CN206247120U (en) | Light source module | |
| US9176269B2 (en) | Light source module and display module | |
| CN105276441A (en) | Spread illuminating apparatus | |
| US7688402B2 (en) | Backlight module for LCD having reflective curved surfaces for forming virtual light sources | |
| CN104180241A (en) | Backlight module | |
| KR20060042951A (en) | Backlight | |
| US9188730B2 (en) | Light source module using laser as light source | |
| CN104834049A (en) | Backlight module and liquid crystal display device | |
| KR100864320B1 (en) | Light guide panel comprising step structure for back light unit of tft-lcd | |
| US20180217446A1 (en) | Local dimming backlight modules and display devices | |
| CN108508650A (en) | Backlight module | |
| CN109118953B (en) | Direct type backlight module | |
| CN201103850Y (en) | Backlight module | |
| CN106896444A (en) | Backlight display module BLU, LCM and electronic equipment | |
| CN108490531B (en) | Backlight device, light guide plate and display device | |
| US8324655B2 (en) | Backlight module and light emitting diode module thereof | |
| JP4671343B2 (en) | Lighting equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180907 |