CN100489385C

CN100489385C - Backlight module and lamp tube fixing component

Info

Publication number: CN100489385C
Application number: CNB2007101260646A
Authority: CN
Inventors: 蔡永生; 朱启智; 吴宜宁; 蔡佳勋
Original assignee: AU Optronics Corp
Current assignee: AUO Corp
Priority date: 2007-07-06
Filing date: 2007-07-06
Publication date: 2009-05-20
Anticipated expiration: 2027-07-06
Also published as: CN101078503A

Abstract

The invention discloses a backlight module and a lamp tube fixing component thereof, wherein the backlight module comprises a back plate, a diffusion plate, at least one fixing seat and at least one elastic piece. The diffusion plate is arranged on the back plate. The fixing seat is arranged between the back plate and the diffusion plate and arranged on the back plate, the elastic piece is fixed on the fixing seat, and an arrangement space is formed between the fixing seat and the elastic piece. The lamp tube is arranged in the setting space and is pressed and fixed on the fixed seat by the elastic piece, so that the lamp tube is fixed on the back plate and is used as a light source of the backlight module.

Description

Backlight module and lamp tube fixation assembly

Technical field

The present invention relates to a kind of backlight module and lamp tube fixing structure, particularly relate to a kind of backlight module and elasticity and suppress the lamp tube fixation assembly of its fluorescent tube with fixed lamp tube.

Background technology

Fluorescent tube in the direct type backlight module is arranged on its backboard, and along with the display pannel size increases, the fluorescent tube length of backlight module also increases gradually.For avoiding fluorescent tube to be subjected to improper external force displacement or fracture, in backlight module, lamp tube fixing structure need be set, support and fixed lamp tube.

Fig. 1 is a kind of lamp tube fixing structure in the known technology, and it comprises a holder 11, a location division 12 and a holder 13.Holder 11 is arranged at backboard (diagram does not indicate), and location division 12 is arranged at the end face of holder 11, and wherein location division 12 has a groove 12a, and fluorescent tube 14 is placed on this groove 12a.Holder 13 so as to fluorescent tube 14 is fixed on the holder 11, avoids fluorescent tube 14 to rock in order to clamping fluorescent tube 14.

But, in the process with holder 13 clamping fluorescent tubes 14, must fluorescent tube 14 be embedded in the holder 13 to fluorescent tube 14 application of forces.Therefore assemble in the process of fluorescent tube 14, easily cause fluorescent tube 14 fractures, and holder 13 itself also has the possibility of fracture because of the application of force is improper.

In addition, the scale error of holder 13 also may cause fluorescent tube 14 damages.If during holder 13 oversize, cause seizing on both sides by the arms effectively fixed lamp tube 14 of part 13.If during holder 13 undersized, must apply bigger pressure to fluorescent tube 14 in the assembling process, fluorescent tube 14 could be embedded in the holders 13.The assembling speed of fluorescent tube 14 is reduced, and increase the probability of fluorescent tube 14 fractures.

Summary of the invention

The object of the present invention is to provide a kind of backlight module and lamp tube fixation assembly thereof, solve in the known technology, lamp tube fixing structure is difficult for assembling, or influences the problem of fluorescent tube fixed effect because of the lamp tube fixing structure scale error.

To achieve these goals, the invention provides a kind of backlight module, include:

One backboard;

One diffuser plate, diffuser plate is set in parallel on the backboard, and forms an accommodation space with backboard, in order to fluorescent tube and lamp tube fixation assembly to be set;

At least one holder is arranged on this backboard, and between this backboard and this diffuser plate;

At least one elastic component is fixed on this holder, and formation one is provided with the space between this holder and this elastic component; And

At least one fluorescent tube places this that space is set, and is fixed in this holder by this elastic component compacting.

To achieve these goals, the present invention also provides a kind of lamp tube fixation assembly, comprises a holder and at least one elastic component.Wherein holder is arranged on the backboard, and between backboard and diffuser plate.Elastic component is fixed on the holder, and formation one is provided with the space between holder and the elastic component.Fluorescent tube is placed in and is provided with in the space, and is fixed in holder by the elastic component compacting, as the light source of backlight module.

Above-mentioned elastic component can be an annular resilient part, and in assembling process, the annular resilient part is sheathed on fluorescent tube earlier, after fluorescent tube is placed in holder, again the annular resilient part is sheathed on holder, and the compacting fixed lamp tube is in holder.Elastic component also can be a wire elastic component, and in assembling process, several fluorescent tubes are placed in holder earlier, will be connected in the two ends of holder above the wire elastic component process fluorescent tube in the buckle mode again, and the compacting fixed lamp tube is in holder.No matter be the elastic component of which kind of kenel, in assembling process, do not need the fluorescent tube application of force, but utilize elastic component be incorporated into holder so that the compacting fixed lamp tube in holder, because elastic component has elastic force, fluorescent tube is carried out going back the improper external force that available buffer is granted fluorescent tube outside the elasticity compressing, can effectively avoid fluorescent tube to be subjected to improper external force and displacement or fracture.

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

Description of drawings

Fig. 1 is the stereogram of a kind of lamp tube fixing structure of known technology;

Fig. 2 A is the profile of first embodiment of the invention;

Fig. 2 B is the vertical view of first embodiment of the invention;

Fig. 2 C is a first embodiment of the invention neutral body exploded view;

Fig. 2 D is the assembling schematic diagram of first embodiment;

Fig. 2 E is the diagram of first embodiment of the invention;

Fig. 3 A is the three-dimensional exploded view of second embodiment of the invention;

Fig. 3 B is the assembling schematic diagram of second embodiment;

Fig. 3 C is the diagram of second embodiment of the invention;

Fig. 4 A is the stereogram of third embodiment of the invention;

Fig. 4 B is the three-dimensional exploded view of third embodiment of the invention;

Fig. 4 C is the assembling schematic diagram of the 3rd embodiment; And

Fig. 4 D is the diagram of third embodiment of the invention.

Wherein, Reference numeral:

11 holders

12 location divisions

The 12a groove

13 holders

14 fluorescent tubes

100 backlight modules

The 100a accommodation space

110 backboards

114 embedding holes

120 diffuser plates

130 holders

131 embedding posts

132 distance pieces

133 support columns

134 back-up blocks

135 grooves

136 groovings

137 columns

The 137a draw-in groove

140 elastic components

141 stop blocks

150 fluorescent tubes

160 elastic components

161 stop blocks

270 lamp tube fixation assemblies

270a puts the space

370 lamp tube fixation assemblies

370a is provided with the space

470 lamp tube fixation assemblies

470a is provided with the space

The specific embodiment

The invention provides a kind of lamp tube fixation assembly that is used for backlight module, Fig. 2 A is the first embodiment of the present invention.In the present embodiment, backlight module 100 comprises a backboard 110, a diffuser plate 120, at least one lamp tube fixation assembly 270 and several fluorescent tubes 150.Wherein diffuser plate 120 is set in parallel on the backboard 110, and form an accommodation space 100a with backboard 110, in order at least one lamp tube fixation assembly 270 and several fluorescent tubes 150 to be set, wherein lamp tube fixation assembly 270 comprises a holder 130 and several annular resilient parts 140.Backboard 110 has several embedding holes 114, and the bottom surface of holder 130 has several embedding posts 131 in order to embedding each embedding hole 114, with fixing holder 130 on backboard 120.The bottom surface of holder 130 also has several distance pieces 132, with so that have a gap between holder 130 and the backboard 110.In addition, the end face of holder 130 also has at least one support column 133, in order to support diffuser plate 120.The end face of holder 130 also has several back-up blocks 134, in order to put fluorescent tube 150.Annular resilient part 140 is sheathed on holder 130 and the back-up block 134, and so as to fixedly ring-type elastic component 140 is on holder 130, formation one is provided with space 270a between back-up block 134 and annular resilient part 140 simultaneously.Fluorescent tube 150 is placed in and is provided with among the 270a of space, and is fixed on the back-up block 134 by 140 compactings of annular resilient part.

Then with reference to figure 2B, lamp tube fixation assembly 270 is arranged at intervals on the backboard 110, and the number of holder 130 is according to the length decision of fluorescent tube 150.When fluorescent tube 150 length are longer, for supporting that also fixed lamp tube 150 must be provided with the more holder of number 130 along y direction (direction that is parallel to fluorescent tube 150) on backboard 110.Otherwise, when fluorescent tube 150 length more in short-term, the corresponding minimizing of holder 130 numbers that is provided with along y direction.

The number of the corresponding fluorescent tube 150 of back-up block 134 numbers on same holder 130, and a plurality of back-up blocks 134 are arranged at the end face of holder 130 along X direction (perpendicular to the direction of fluorescent tube 150), and the back-up block 134 of each holder 130 supports different fluorescent tube 150 respectively.

Fig. 2 C is the partial enlarged drawing of Fig. 2 B, and in Fig. 2 C, lamp tube fixation assembly 270 has the groove 135 of several corresponding fluorescent tubes 150, is arranged at the end face of back-up block 134.In addition, holder 130 also has several groovings 136, and grooving 136 is arranged at the both sides of back-up block 134 in pairs.Annular resilient part 140 is sheathed on two groovings 136 that should back-up block 134, so as to fixing ring-type elastic component 140 on holder 130, form above back-up block 134 simultaneously the space is set, fluorescent tube 150 is placed in this and is provided with in the space, and is fixed on the groove 135 by elastic component 140 compactings of ring-type.

Shown in figure 2D and Fig. 2 E, in the assembling process of present embodiment, annular resilient part 140 is sheathed on fluorescent tube 150 earlier, then fluorescent tube 150 is placed on the groove 135, annular resilient part 140 is sheathed on the grooving 136 of paired setting, so that fixedly ring-type elastic component 140 is on holder 130, formation one is provided with space 270a (being shown in Fig. 2 E) above back-up block 134 simultaneously again, fluorescent tube 150 places this that space 270a is set, and is fixed on the groove 135 by 140 compactings of annular resilient part.

Fig. 3 A is the second embodiment of the present invention, and in the present embodiment, lamp tube fixation assembly 370 comprises a holder 130 and an annular resilient part 140.Holder 130 has a groove 135 and a grooving 136.Groove 135 directly is arranged at the end face of holder 130, and near the end of holder 130.Grooving 136 is adjacent to a side of groove 135.

Shown in figure 3B and Fig. 3 C, in the assembling process of present embodiment, annular resilient part 140 is sheathed on fluorescent tube 150 earlier, then fluorescent tube 150 is placed on the groove 135, again annular resilient part 140 is sheathed on the end of grooving 136 and holder 130, makes annular resilient part 140 be fixed in holder 130, and space 370a is set with holder 130 formation one, fluorescent tube 150 places space 370a is set, and is fixed on the groove 135 by 140 compactings of annular resilient part.

Fig. 4 A is a third embodiment of the invention, and Fig. 4 B is the partial enlarged drawing of Fig. 4 A.In the present embodiment, lamp tube fixation assembly 470 comprises a holder 130 and a wire elastic component 160.Holder 130 has at least one support column 133, at least two columns 137, several back-up blocks 134 and several grooves 135.Support column 133 is arranged at the end face of holder 130, in order to support the diffuser plate (not shown).Two columns, 137 correspondences are arranged at the two ends of holder 130, and each column 137 has a draw-in groove 137a (being shown in Fig. 4 B) respectively.Several back-up blocks 134 are arranged at the end face of holder 130, in order to support different fluorescent tube 150.Each groove 135 is formed at the end face of each back-up block 134 respectively.Do not limit the position of groove 135 at this, according to the demand that reality is used, groove 135 also can directly be arranged at the end face of holder 130, shown in second embodiment of the invention.Two ends of wire elastic component 160 have stop block 161 (being shown in Fig. 4 B) respectively, the minimum diameter of stop block 161 is greater than the width of draw-in groove 137a, so stop block 161 can be resisted against the outside of column 137 through draw-in groove 137a, with fixing wire elastic component 160 on holder 130, and form one with holder 130 space 470a is set, fluorescent tube 150 is placed in this and is provided with among the 470a of space.

Shown in figure 4C and Fig. 4 D, in the assembling process of present embodiment, earlier fluorescent tube 150 is placed on the groove 135 and (is shown in Fig. 4 B), then wire elastic component 160 is sheathed on draw-in groove 137a and stop block 161 is resisted against the outside of column 137, make two ends of wire elastic component 160 be individually fixed in holder 130, and compacting fixed lamp tube 150 is on groove 135.

In assembling process of the present invention, earlier fluorescent tube 150 is positioned over ad-hoc location (for example being in back-up block 134 or the groove 135), again annular resilient part 140 or wire elastic component 160 are fixed in holder, and compacting fixed lamp tube 150.Utilize lamp tube fixation assembly proposed by the invention, in assembling process, do not need, therefore, can avoid taking place because of assembling the improper problem that causes fluorescent tube 150 to break as in the known technology fluorescent tube 150 being embedded when seizing part on both sides by the arms to fluorescent tube 150 application of forces.Utilize elastic component 140,160 compacting fixed lamp tubes in the space is set, elastic component 140,160 has suitable contacting with fluorescent tube 150, can solve that fixed structure is because of scale error in the known technology, effectively fixed lamp tube 150, or fluorescent tube 150 is produced the problem of extruding.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims

1. A backlight module, characterized in that it comprises:

a backplane;

a diffusion plate, arranged above the back plate;

At least one fixing seat is arranged on the back plate and is located between the back plate and the diffuser plate;

At least one annular elastic member is fixed on the fixing seat, and a setting space is formed between the fixing seat and the annular elastic member; and

At least one lamp tube is placed in the installation space, and is pressed and fixed on the fixing seat by the ring-shaped elastic member. The fixing seat has at least a cutout groove, and the ring-shaped elastic member is sleeved in the cutout groove.

2. A light tube fixing assembly of a backlight module, which is arranged on a backboard of the backlight module to support and fix at least one light tube on the backplane, characterized in that the light tube fixing assembly includes:

A fixing seat is arranged on the backboard, and the fixing seat has at least a cutout groove; and

A ring-shaped elastic member is sleeved on the slot to form a setting space between the fixing seat and the ring-shaped elastic member, wherein the lamp tube is placed in the setting space and is pressed and fixed by the ring-shaped elastic member on the mount.

3. The light tube fixing assembly of the backlight module according to claim 2, wherein the fixing base has at least one groove disposed on the top surface of the fixing base, and the light tube is placed in the groove.

4. The light tube fixing assembly of the backlight module according to claim 3, wherein the fixing seat has at least one supporting block, which is arranged on the top surface of the fixing seat, and the groove is arranged on the top of the supporting block. noodle.

5 . The light tube fixing assembly of the backlight module according to claim 2 , wherein the fixing base has at least one support column, which is arranged on the top surface of the fixing base.

6. The light tube fixing assembly of the backlight module according to claim 2, wherein the fixing seat has at least one embedded column for inserting into the back plate.

7. The light tube fixing assembly of the backlight module according to claim 6, wherein the fixing base has at least one spacer, and the spacer is disposed on the bottom surface of the fixing base.