CN102927497B

CN102927497B - Backlight module

Info

Publication number: CN102927497B
Application number: CN201210321652.6A
Authority: CN
Inventors: 蓝隽凯; 刘文杰
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2012-05-11
Filing date: 2012-09-03
Publication date: 2014-12-10
Anticipated expiration: 2032-09-03
Also published as: TW201346396A; CN102927497A; TWI456314B

Abstract

The invention relates to a backlight module, comprising: the device comprises an optical component, a light source module, a back cover and a frame; the light source module comprises a substrate and a light-emitting element, wherein the light-emitting element is positioned on the substrate; the back cover comprises a body and a bearing piece, the body bears the optical component, the bearing piece is connected with the body and is bent towards the direction far away from the optical component, the light source module is positioned on the bearing piece, the light-emitting element is positioned on the side edge of the optical component, a section difference is formed at the connecting part of the bearing piece and the body, and the height of the section difference is more than or equal to the thickness of the substrate; one end of the frame is combined with the bearing piece, and the other end of the frame clamps the optical component. According to the backlight module, the torsion resistance and the strength of the whole backlight module can be effectively improved, the occupied frame space can be reduced and the assembly effect is convenient after the light source module is positioned on the bearing piece, and the frame distance and the assembly cost of the backlight module can be effectively reduced after the frame is combined with the light source module and the bearing piece.

Description

Backlight module

Technical field

The present invention is about a kind of backlight module, particularly a kind of backlight module of reinforced structure intensity.

Background technology

Along with display technology progressive and evolution fast, traditional cathode-ray tube (CRT) because of Existential Space utilization not good with consume the problems such as mass energy, by market, eliminated gradually, the substitute is the liquid crystal display with the advantage such as light, thin, short, little.

In the field of liquid crystal towards frivolous, narrow frame, the size of liquid crystal display is more done larger along with scientific and technological development and evolution, thickness is also more and more thinner simultaneously, and, because thickness is more frivolous, the structural strength of liquid crystal display also must improve, wherein, available liquid crystal display is for guaranteeing overall construction intensity, setting and fit at spare part must overcome many restrictions, and for example narrow limit, twisting resistance or cost are considered, and have therefore also caused a liquid crystal display difficult problem in design, so, need under the problem that solves of technical field personnel.

Summary of the invention

In view of this, the present invention proposes a kind of backlight module, comprises: optical module, light source module, back of the body lid and framework; Wherein, light source module comprises substrate and light-emitting component, and light-emitting component is positioned at substrate; Back of the body lid comprises body and bearing part, body bearing optical assembly, bearing part is connected in body and bends towards the direction away from optical module, light source module is positioned at bearing part, wherein, light-emitting component is positioned at the side of optical module, and bearing part is connected with body, and to form section poor for part, and the height that section differs from is more than or equal to the thickness of substrate; Framework one end combines with bearing part, other end clamping optical module.

In embodiments of the invention, backlight module can be by bearing part towards the direction bending away from optical module, and a version for the poor height of formation section, effectively to promote the intensity of torsional rotation force and Integral back optical module, and, light source module can reduce frame space and the effect convenient for assembly of taking after being positioned at bearing part, after framework is combined with light source module and bearing part, effectively reduces the frame distance of backlight module and the effect of assembly cost.

In embodiment, describe below detailed features of the present invention and advantage in detail, its content is enough to make any related art techniques person of haveing the knack of understand technology contents of the present invention and implement according to this, and according to the disclosed content of this instructions, claim and graphic, any related art techniques person of haveing the knack of can understand object and the advantage that the present invention is relevant easily.

Accompanying drawing explanation

Fig. 1 is the outward appearance diagrammatic cross-section of the first embodiment of the present invention;

Fig. 2 is the side-looking diagrammatic cross-section of the first embodiment of the present invention;

Fig. 3 is the schematic side view () of bearing part of the present invention;

Fig. 4 is the schematic side view (two) of bearing part of the present invention;

Fig. 5 is the schematic side view (three) of bearing part of the present invention;

Fig. 6 is the outward appearance diagrammatic cross-section of the second embodiment of the present invention;

Fig. 7 is the outward appearance diagrammatic cross-section of the third embodiment of the present invention;

Fig. 8 is the outward appearance diagrammatic cross-section of the fourth embodiment of the present invention;

Fig. 9 is the outward appearance diagrammatic cross-section of the fifth embodiment of the present invention.

Wherein, Reference numeral:

100......... backlight module

1.......... optical module

3.......... light source module

31.......... substrate

32.......... light-emitting component

5.......... the back of the body covers

50.......... section is poor

51.......... body

52.......... bearing part

53.......... base portion

531......... first end

532......... the second end

533......... snap-latch surface

534......... button hole

535......... lockhole

54.......... the first supporting part

55.......... the second supporting part

6.......... conjunction

61.......... clamping part

62.......... screw tightening

7.......... framework

70.......... hook portion

71.......... location division

72.......... dip plane

73.......... hole

D1......... first direction

D2......... second direction

D3......... third direction

H.......... spacing

Embodiment

Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.

Fig. 1 and Fig. 2 are the first embodiment of the present invention.Fig. 1 is outward appearance diagrammatic cross-section, and Fig. 2 is side-looking diagrammatic cross-section.

As Fig. 1 and Fig. 2, the backlight module 100 in first embodiment of the invention comprises optical module 1, light source module 3, the back of the body and covers 5 and framework 7.For clear, present light source module 3, Fig. 1 is display optical assembly 1 not.

Optical module 1 mainly can be comprised of light guide plate, optical diaphragm group in the present embodiment, at this, illustrates that the structure about optical module is only that the present invention is non-as limit for example.

Light source module 3 comprises substrate 31 and light-emitting component 32, and wherein, substrate 31 is strip, and light-emitting component 32 compartment of terrains are arranged on substrate 31.

Refer to Fig. 2, the back of the body covers 5 and mainly can be comprised of integrally formed body 51 and bearing part 52, wherein, one end of bearing part 52 is connected in body 51, the other end is towards the direction bending away from optical module 1, and in other words, the other end of bearing part 52 is along first direction D1 bending (towards below).One end of framework 7 combines with bearing part 52 again, the other end clamping optical module 1 of framework 7.At this, bearing part 52 is connected with body 51, and via bending, the section of formation differs from 50 to part, in the present embodiment, section differs from the thickness that 50 height equals substrate 31, therefore substrate 31 sections of being positioned differ from behind 50 places, the surface of the upper surface of substrate 31 one side of optical module 1 (towards) the protruding body 51 of can not dashing forward, and, the substrate 31 of light source module 3 is positioned after bearing part 52, and light-emitting component 32 is positioned at the side of optical module 1 and towards optical module 1 throw light.In addition, because section differs from the thickness that 50 height equals substrate 31, therefore, after body 51 bearing optical assemblies 1, a part for optical module 1 is positioned on body 51, another part of optical module 1 is positioned on substrate 31, optical module 1 is entirely supported be attached on body 51 and substrate 31 and by body 51 and substrate 31, is supported simultaneously.

In above stated specification, to take section to differ from the thickness that 50 height equals substrate 31 be example explanation, the present invention is non-as limit, and section differs from the thickness that 50 height can be greater than substrate 31, makes one end of substrate 31 can insert easily formed space between optical module 1 and bearing part 52.

In certain embodiments, please continue to refer to Fig. 1 and Fig. 2, bearing part 52 mainly can be comprised of base portion 53, the first supporting part 54 and the second supporting part 55, wherein, the cross section of base portion 53 is generally U font type, two sides of base portion 53 are respectively first end 531 and the second end 532, one end of the first supporting part 54 is connected in the first end 531(of base portion 53 as the left side of Fig. 2 base portion), the other end of the first supporting part 54 is connected in the second end 532(that one end of body 51, the second supporting parts 55 is connected in base portion 53 as the right side of Fig. 2 base portion).In the present embodiment, the first supporting part 54 and the second supporting part 55 are preferably the structure of plane plate, and both are in the same plane and form loading end, in order to carry light source module 3.And the surface level of the surface level of base portion 53 positions and substrate 31 positions forms the drop of spacing H.

In certain embodiments, refer to Fig. 2, the first supporting part 54 and the second supporting part 55 are extended in the opposite direction by base portion 53 respectively, in other words, the first supporting part 54 is along second direction D2(towards body 51) extend, the second supporting part 55 is along third direction D3(towards framework 7) extend, can further promote the anti-torsion effect that the back of the body covers 5 structures.At this, the direction that above stated specification is extended about the second supporting part 55 is only for giving an example, the present invention is non-as limit, in certain embodiments, the second supporting part 55 can extend (as Fig. 7 and Fig. 8) towards the direction of the first supporting part 54 by base portion 53, in other words, the second supporting part 55 extends (towards body 51) along second direction D2.

In certain embodiments, refer to Fig. 2, the cross section of framework 7 is generally ㄈ font type, and its one end forms hook portion 70, other end clamping optical module 1, and hook portion 70 can combine with bearing part 52.In this embodiment, one end of framework 7 arranges location division 71, and location division 71 is preferably groove structure.

At this, above stated specification is only that the present invention is non-as limit for example about the structure of location division 71, in certain embodiments, location division 71 can be the pore space structure (as shown in FIG. 6 and 7) that runs through framework, wherein, and in certain embodiments, refer to Fig. 2, the second supporting part 55 is embedded in location division 71 with one end of substrate 31, yet the present invention is non-as limit, in certain embodiments, location division 71 can be singly with the chimeric location of substrate 31 (as shown in Figures 7 and 8).

In certain embodiments, refer to Fig. 2, one end of framework 7 is provided with dip plane 72, the base portion 53 of bearing part 52 is provided with snap-latch surface 533, because snap-latch surface 533 and dip plane 72 corresponding angles tilt, therefore, when snap-latch surface 533 supports subsides dip plane 72, can make bearing part 52 be sticked on framework 7.

At this, above stated specification is only that the present invention is non-as limit for example about one end of framework 7 and the combination of bearing part 52, and in certain embodiments, framework 7 can gummed mode bind (not shown) with bearing part 52.

In certain embodiments, the base portion 53 of bearing part 52 can be other structure aspect.Refer to Fig. 2, the cross section of base portion 53 is generally U font type, and inner width distance to A/F is expanded apart from forming gradually; Refer to Fig. 3, the cross section of base portion 53 is generally U font type, inner width distance to A/F apart from forming formed objects; Refer to Fig. 4, the cross section of base portion 53 is generally U font type, and inner width distance is greater than A/F distance.At this, above stated specification is only that the present invention is non-as limit for example about the structure aspect of base portion 53.

In certain embodiments, refer to Fig. 5, the back of the body covers 5 bearing part 52 can be directly by a plurality of base portions 53, the first supporting part 54 and the second supporting part 55 form, in other words, each base portion 53 left and right sides connect respectively the first supporting part 54 and the second supporting part 55, and, second supporting part 55 on base portion 53 right sides connects first supporting part 54 in another base portion 53 left sides, form integrally formed structure, at this, the first supporting part 54 between two base portions 53 and the second supporting part 55 junctions are supported and are attached to substrate 31 lower surfaces, the graphic mode with signal of this embodiment presents, researcher in this field should understand, the distortion of bearing part 52 may not can reach the bending degree of the bearing part 52 as shown in the present embodiment graphic, therefore, bearing part 52 distortion of embodiments of the invention indication, not the graphic middle deformation extent being presented with embodiments of the invention is limited.

In certain embodiments, refer to Fig. 7, bearing part 52 is fixed on framework 7 via conjunction 6, in the present embodiment, the base portion 53 of bearing part 52 arranges button hole 534, framework 7 one end arrange conjunction 6, and conjunction 6 comprises clamping part 61(for example for protuberance) be fastened on button hole 534, make conjunction 6 fixedly bearing part 52 in framework 7.

In certain embodiments, refer to Fig. 8, bearing part 52 is fixed on framework 7 via conjunction 6, in the present embodiment, the base portion 53 of bearing part 52 arranges lockhole 535, one end of framework 7 arranges hole 73, conjunction 6 is that screw tightening 62 locks on lockhole 535 through hole 73, make conjunction 6 fixedly bearing part 52 in framework 7, wherein, screw tightening 62 is to lock at base portion 53 through dip plane 72, at this, above stated specification is only for example about the interlocking direction of screw tightening 62, the present invention is non-as limit, in certain embodiments, screw tightening 62 can be to lock at the second supporting part 55(as shown in Figure 9 through one end of framework 7).

In sum, can be by bearing part towards the direction bending away from optical module according to backlight module of the present invention, and a version for the poor height of formation section, effectively to promote the intensity of torsional rotation force and Integral back optical module, and, light source module can reduce frame space and the effect convenient for assembly of taking after being positioned at bearing part, after framework is combined with light source module and bearing part, effectively reduces the frame distance of backlight module and the effect of assembly cost.

Although technology contents of the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention; anyly have the knack of this skill person; do not departing from spirit of the present invention a little change and the retouching done; all should be covered by category of the present invention, so protection scope of the present invention is when being as the criterion depending on the accompanying claim person of defining.

Claims

1. a backlight module, is characterized in that, comprises:

One optical module;

One light source module, comprises a substrate and a light-emitting component, and this light-emitting component is positioned at this substrate;

One back of the body lid, comprise a body and a bearing part, this body carries this optical module, this bearing part is connected in this body and bends towards the direction away from this optical module, this light source module is positioned at this bearing part, and wherein, this light-emitting component is positioned at the side of this optical module, this bearing part part that is connected with this body forms one section of difference, and the height of this section of difference is more than or equal to the thickness of this substrate; And

One framework, one end combines with this bearing part, and the other end clamps this optical module;

This bearing part comprises:

One base portion, comprises a first end and one second end;

One first supporting part, one end is connected in this first end of this base portion, and the other end is connected in this body; And

One second supporting part, one end is connected in this second end of this base portion, in the same plane and form a loading end with this first supporting part, in order to carry this light source module.

2. according to the backlight module of claim 1, it is characterized in that, a part for this optical module is positioned on this body, and another part is positioned on this substrate.

3. according to the backlight module of claim 1, it is characterized in that the spacing of being separated by between this substrate of this base portion and this light source module.

4. according to the backlight module of claim 1, it is characterized in that, this first supporting part and this second supporting part are extended in the opposite direction by this base portion respectively.

5. according to the backlight module of claim 4, it is characterized in that, this framework comprises a location division, and this second supporting part is embedded in this location division.

6. according to the backlight module of claim 1, it is characterized in that, this second supporting part is extended towards the direction of this first supporting part by this base portion.

7. according to the backlight module of claim 1, it is characterized in that, this framework comprises a dip plane, and this base portion comprises a snap-latch surface, and this snap-latch surface makes this bearing part be sticked in this framework to being affixed on this dip plane.

8. according to the backlight module of claim 1, it is characterized in that, this framework comprises a location division, and one end of this substrate is embedded in this location division.

9. according to the backlight module of claim 1, it is characterized in that, this bearing part is fixed on this framework via a conjunction.