CN104728788A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN104728788A CN104728788A CN201310703073.2A CN201310703073A CN104728788A CN 104728788 A CN104728788 A CN 104728788A CN 201310703073 A CN201310703073 A CN 201310703073A CN 104728788 A CN104728788 A CN 104728788A
- Authority
- CN
- China
- Prior art keywords
- guide plate
- backlight module
- light guide
- groove
- lamp strip
- 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
- 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
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- 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
- G02B6/0081—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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
Disclosed is a backlight module. The backlight module comprises a light guide plate, a groove and a luminous light bar, wherein the groove is formed in the light guide plate, the groove is separated from one side edge of the light guide plate at a distance, and the luminous light bar is fixedly arranged in the groove. The backlight module can effectively control intervals between the luminous light bar and the light guide plate, and then can improve self optical performance.
Description
Technical field
The present invention relates to a kind of backlight module; In particular to a kind of side light type back light module (Edge-type backlightmodule).
Background technology
Please first consult shown in Fig. 1, a known side light type back light module 1 mainly comprises a light guide plate (light guide plate) 10 and a luminous lamp strip 20, and luminous lamp strip 20 is arranged at the side of light guide plate 10.Wherein, luminous lamp strip 20 comprises a substrate 20a and spaced multiple luminescence component 20b on substrate 20a.The light that aforementioned luminescence component 20b provides can enter light guide plate 10 via an incidence surface of light guide plate 10, then derives from an exiting surface of light guide plate 10, and then produces an area source.
Gap P it is to be understood that between multiple luminescence component 20b and light guide plate 10, the brightness (luminance) for side light type back light module 1 has direct impact.For example, when gap P is too small, the region of those luminescence components of the vicinity of light guide plate 10 20b can form clear zone, and the region beyond those clear zones then relatively can form dark space, these clear zones and dark space are by uneven for the area source causing light guide plate 10 to provide, that is so-called focus (hot spot) phenomenon.Otherwise, when gap P is excessive, the optical appearance of backlight module 1 also may be caused to produce skew or weak phenomenon.Therefore, how to control the gap P between luminescence component 20b and light guide plate 10, actual value obtains the deep thinking of related personnel institute.
Thus, need to provide a kind of backlight module to solve the problems referred to above.
Summary of the invention
The invention provides a kind of backlight module, particularly a kind of side light type back light module, it can be applicable to a liquid crystal display (liquid crystal display, LCD).
The invention provides a kind of backlight module, it effectively can control the gap between luminescence component and light guide plate, and then also can improve the optical appearance of backlight module.
One embodiment of the invention provide a kind of backlight module, and this backlight module comprises: a light guide plate; One groove, this groove type is formed on this light guide plate, and a distance of being separated by between this groove and a side of this light guide plate; And a luminous lamp strip, this luminous lamp strip is fixedly arranged in this groove.
In one embodiment, aforementioned grooves is formed at a surface of aforementioned light guide plate, and light guide plate has an exiting surface, and wherein exiting surface is relative to aforementioned surfaces.
In one embodiment, aforementioned luminous lamp strip connects a first side wall of aforementioned grooves, and the aforementioned side of the contiguous aforementioned light guide plate of the first side wall.
In one embodiment, aforementioned light guide plate has an incidence surface, be formed at one second sidewall of aforementioned grooves, and the second sidewall is relative to aforementioned the first side wall.
In one embodiment, aforementioned grooves is formed at a surface of aforementioned light guide plate, and light guide plate has an exiting surface, and wherein exiting surface is relative to aforementioned surfaces.
In one embodiment, backlight module also comprises a radiating seat, and aforementioned luminous lamp strip connects radiating seat, and radiating seat is fixedly arranged in aforementioned grooves.
In one embodiment, aforementioned radiating seat has metal material.
In one embodiment, backlight module also comprises a fixture, penetrates aforementioned grooves, and be combined with aforementioned radiating seat by the aforementioned side of aforementioned light guide plate.
In one embodiment, aforementioned fixture comprises screw, rivet or trip.
In one embodiment, aforementioned luminous lamp strip also comprises a substrate and multiple luminescence component, and those luminescence components are arranged on substrate.
In one embodiment, aforementioned luminescence component is light emitting diode.
The present invention effectively can control the gap between luminous lamp strip and light guide plate, and then also can improve the optical appearance of backlight module.
For above and other object of the present invention, feature and advantage can be become apparent, cited below particularly go out preferred embodiment, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
Fig. 1 represents the schematic diagram of a known side light type back light module.
Fig. 2 A represents the sectional view of the backlight module of one embodiment of the invention.
Fig. 2 B represents the schematic diagram of the light guide plate of Fig. 2 A.
Primary clustering symbol description:
1,2 ~ backlight module
10 ~ light guide plate
10a ~ lower surface
10b ~ minor face
20 ~ luminous lamp strip
20a ~ substrate
20b ~ luminescence component
30 ~ radiating seat
32 ~ connecting portion
40 ~ fixture
50 ~ backboard
60 ~ glue frame
D ~ distance
P ~ gap
R ~ groove
R1 ~ the first side wall
R2 ~ the first side wall
S1 ~ incidence surface
S2 ~ exiting surface
Detailed description of the invention
Please first consult shown in Fig. 2 A, the backlight module 2 of one embodiment of the invention is such as a side light type back light module, can be applicable to a liquid crystal display.Backlight module 2 mainly comprises light guide plate 10, luminous lamp strip 20, radiating seat 30 and an at least one fixture 40.
Aforementioned light guide plate 10 is a rectangular panel body (seeing also Fig. 2 B), and its lower surface 10a is formed with the recess R that one day, light guide plate 10 inside contracted.Wherein, recess R has a long rectangular configuration, and its minor face 10b along light guide plate 10 is arranged, and an and distance D of being separated by between minor face 10b.It is to be understood that the recess R of section Example of the present invention also can be arranged along the long limit of of light guide plate 10, and is separated with a distance mutually with this long limit.As shown in Figure 2 A and 2 B, the recess R of the present embodiment has the first side wall R1 and one second sidewall R2 that are oppositely arranged, and the first side wall R1 compares the minor face 10b of the more contiguous aforementioned light guide plate 10 of the second sidewall R2.
Please continue to refer to Fig. 2 A, aforementioned luminous lamp strip 20 comprises a thin-and-long substrate 20a and multiple luminescence component 20b, and aforementioned luminescence component 20b is arranged at (shown in Fig. 1) on substrate 20a along a long axis direction (being parallel to the Y-axis in Fig. 2 A) compartment of terrain of substrate 20a.It is to be understood that because the substrate 20a in Fig. 2 A extends towards Y direction, therefore by only seeing a luminescence component 20b connection substrate 20a in figure.In the present embodiment, substrate 20a can be a printed circuit board (PCB) (printed circuit board, PCB) or a flexible circuit board (flexible printed circuit, FPC), and luminescence component 20b can comprise multiple light emitting diode (light emitting diode, LED).
Please continue to refer to Fig. 2 A, aforementioned radiating seat 30 has a T-shaped cross-section structure, and it extends along Y direction.Wherein, radiating seat 30(T i section structure) a junction 32 being parallel to Z-direction connect the first side wall R1 of the recess R of light guide plate 10.Moreover luminous lamp strip 20 connects the connecting portion 32 of radiating seat 30.In the present embodiment, luminous lamp strip 20 can utilize heat-conducting glue to stick on radiating seat 30.In addition, radiating seat 30 can have the metal materials such as such as aluminium.
Please continue to refer to Fig. 2 A, aforementioned fixture 40 is passed the first side wall R1 by the aforementioned minor face 10b of light guide plate 10 and is entered recess R, and be combined with each other with the connecting portion 32 of radiating seat 30.By this, radiating seat 30 and luminous lamp strip 20 can be made to be fixed in recess R (or rather, can make radiating seat 30 and luminous lamp strip 20 be permanently connected the first side wall R1 of recess R).In the present embodiment, fixture 40 can be screw, rivet or trip etc.
As shown in Figure 2 A, the backlight module 2 of the present embodiment also comprises backboard 50 and a glue frame 60.After aforementioned light guide plate 10, luminous lamp strip 20, radiating seat 30 and fixture 40 have been assembled, be supported on backboard 50 by radiating seat 30, then glue frame 60 has been inserted backboard 50, to complete the whole assembling operation of backlight module 2.Because light guide plate 10, luminous lamp strip 20, radiating seat 30 and fixture 40 first can be assembled into a fixing entirety, then assemble with backboard 50 and glue frame 60, therefore the assembling flow path of backlight module 2 can be simplified, and contribute to the lifting of producing line qualification rate.
It is to be understood that luminous lamp strip 20 luminescence component 20b the second sidewall R2 of just right recess R be an incidence surface S1 of light guide plate 10, an exiting surface S2 of light guide plate 10 is then formed at the opposite face of the lower surface 10a of light guide plate 10.
Specifically be, above structural design, the luminous lamp strip 20 of the present embodiment and light guide plate 10 can reach firmly to be assembled mutually, and pass through the size of the recess R controlling light guide plate 10, also the gap P between those luminescence components 20b and incidence surface S1 can effectively and equably be controlled, and then with the defect such as the hot spot phenomenon or optical appearance of improving such as known backlight module be bad.
In sum, the invention provides a kind of side light type back light module, can be applicable to a liquid crystal display, it mainly comprises a light guide plate and a luminous lamp strip, wherein light guide plate is formed with a groove, to be separated by between this groove and a side of light guide plate a distance, and luminous lamp strip is then fixedly arranged in groove.The characteristic Design of above, backlight module of the present invention can reach the gap effectively controlled between luminous lamp strip and light guide plate, and then also can improve the optical appearance of backlight module.
Although embodiments of the invention and advantage thereof are open as above, will be appreciated that the those of ordinary skill in any art, without departing from the spirit and scope of the present invention, should change, substitute and retouching.In addition; protection scope of the present invention is not confined to technique in description in described specific embodiment, machine, manufacture, material formation, device, method and step; those of ordinary skill in any art can understand existing or following developed technique, machine, manufacture, material formation, device, method and step from content disclosed by the invention, all can be used according to the invention as long as can implement more or less the same function or obtain more or less the same result in described embodiment herein.Therefore, protection scope of the present invention comprises above-mentioned technique, machine, manufacture, material formation, device, method and step.In addition, the scope of each claim forms respective embodiment, and protection scope of the present invention also comprises the scope of each claim and the combination of embodiment.
Although the present invention is with aforesaid embodiment openly as above, however itself and be not used to limit the present invention.The ordinary technical staff in the technical field of the invention, without departing from the spirit and scope of the present invention, should do a little change and retouching.Therefore protection scope of the present invention should be as the criterion depending on the scope person of defining of appending claims.
Claims (10)
1. a backlight module, this backlight module comprises:
One light guide plate;
One groove, this groove type is formed on this light guide plate, and a distance of being separated by between this groove and a side of this light guide plate; And
One luminous lamp strip, this luminous lamp strip is fixedly arranged in this groove.
2. backlight module as claimed in claim 1, wherein this groove type is formed in a surface of this light guide plate, and this light guide plate has an exiting surface, and wherein this exiting surface is relative to this surface.
3. backlight module as claimed in claim 1, wherein this luminous lamp strip connects a first side wall of this groove, and this first side wall is adjacent to this side of this light guide plate.
4. backlight module as claimed in claim 3, wherein this light guide plate has an incidence surface, and this incidence surface is formed at one second sidewall of this groove, and this second sidewall is relative to this first side wall.
5. backlight module as claimed in claim 1, wherein this backlight module also comprises a radiating seat, and this luminous lamp strip connects this radiating seat, and this radiating seat is fixedly arranged in this groove.
6. backlight module as claimed in claim 5, wherein this radiating seat has metal material.
7. backlight module as claimed in claim 5, wherein this backlight module also comprises a fixture, and this fixture penetrates this groove by this side of this light guide plate, and is combined with this radiating seat.
8. backlight module as claimed in claim 7, wherein this fixture comprises screw, rivet or trip.
9. backlight module as claimed in claim 1, wherein this luminous lamp strip also comprises a substrate and multiple luminescence component, and those luminescence components are arranged on this substrate.
10. backlight module as claimed in claim 9, wherein those luminescence components are light emitting diode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703073.2A CN104728788A (en) | 2013-12-19 | 2013-12-19 | Backlight module |
| TW102148952A TW201525584A (en) | 2013-12-19 | 2013-12-30 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703073.2A CN104728788A (en) | 2013-12-19 | 2013-12-19 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104728788A true CN104728788A (en) | 2015-06-24 |
Family
ID=53452943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310703073.2A Pending CN104728788A (en) | 2013-12-19 | 2013-12-19 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104728788A (en) |
| TW (1) | TW201525584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732821A (en) * | 2018-06-07 | 2018-11-02 | 惠州市华星光电技术有限公司 | Liquid crystal display and its backlight module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803229U (en) * | 2010-07-21 | 2011-04-20 | 惠州Tcl璨宇光电有限公司 | Novel LED backlight module group |
| CN102322601A (en) * | 2011-10-12 | 2012-01-18 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) backlight module and liquid crystal display device |
| TW201234089A (en) * | 2010-11-10 | 2012-08-16 | Lg Innotek Co Ltd | Back-light unit |
| CN202791664U (en) * | 2012-09-14 | 2013-03-13 | 上海北闵电子工业有限公司 | Integrated backlight module |
| KR101297777B1 (en) * | 2011-06-20 | 2013-08-20 | 박재한 | Optical spread and heat dissipation is an excellent structure of LED light guide Panel |
-
2013
- 2013-12-19 CN CN201310703073.2A patent/CN104728788A/en active Pending
- 2013-12-30 TW TW102148952A patent/TW201525584A/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803229U (en) * | 2010-07-21 | 2011-04-20 | 惠州Tcl璨宇光电有限公司 | Novel LED backlight module group |
| TW201234089A (en) * | 2010-11-10 | 2012-08-16 | Lg Innotek Co Ltd | Back-light unit |
| KR101297777B1 (en) * | 2011-06-20 | 2013-08-20 | 박재한 | Optical spread and heat dissipation is an excellent structure of LED light guide Panel |
| CN102322601A (en) * | 2011-10-12 | 2012-01-18 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) backlight module and liquid crystal display device |
| CN202791664U (en) * | 2012-09-14 | 2013-03-13 | 上海北闵电子工业有限公司 | Integrated backlight module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732821A (en) * | 2018-06-07 | 2018-11-02 | 惠州市华星光电技术有限公司 | Liquid crystal display and its backlight module |
| CN108732821B (en) * | 2018-06-07 | 2021-07-16 | 惠州市华星光电技术有限公司 | Liquid crystal display and backlight module thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201525584A (en) | 2015-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150624 |
|
| WD01 | Invention patent application deemed withdrawn after publication |