CN100485480C - Backlight assembly - Google Patents

Backlight assembly Download PDF

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Publication number
CN100485480C
CN100485480C CNB2004100301984A CN200410030198A CN100485480C CN 100485480 C CN100485480 C CN 100485480C CN B2004100301984 A CNB2004100301984 A CN B2004100301984A CN 200410030198 A CN200410030198 A CN 200410030198A CN 100485480 C CN100485480 C CN 100485480C
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CN
China
Prior art keywords
side plate
reflex housing
framework
clamping part
backlight assembly
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.)
Expired - Lifetime
Application number
CNB2004100301984A
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Chinese (zh)
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CN1564063A (en
Inventor
蔡宜轩
王明发
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AU Optronics Corp
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AU Optronics Corp
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Publication date
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Priority to CNB2004100301984A priority Critical patent/CN100485480C/en
Publication of CN1564063A publication Critical patent/CN1564063A/en
Application granted granted Critical
Publication of CN100485480C publication Critical patent/CN100485480C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

Backlight assemble includes a frame and a reflection cover. The frame includes back plane, side plates and clip connection structure. The side plates are connected to the back plane. The clip connection structure is setup on surface of a side plate. The reflection cover includes top plate and side plates. A side plate of the reflection cover possesses a clip connection hole. The clip connection hole and the clip connection structure make the reflection cover and the frame be combined closely.

Description

Backlight assembly
Technical field
The invention relates to a kind of backlight assembly (backlight module), and particularly relevant for a kind of backlight assembly of combine closely reflex housing and framework.
Background technology
Along with LCD (liquid crystal display, LCD) manufacturing technology is progressive fast, with and possess and frivolous, power saving arranged and do not have advantages such as width of cloth ray, make LCD be applied in large quantities personal digital aid (PDA) (personal digital assistant, PDA), in the various electronic products such as notebook computer, digital camera, digital camera shadow machine, mobile phone, computer firefly screen and LCD TV.Add the positive input research and development of industry and adopt the production equipment that maximizes, the quality of LCD is improved constantly, and the lasting decline of price, therefore make the application of LCD enlarge rapidly.But, need could produce the function that shows by the light that backlight assembly provided because the display panels in the LCD is the display panel of non-self-luminosity.
Simultaneously with reference to Figure 1A and Figure 1B, Figure 1A is the part exploded view of the traditional backlight assembly of expression, and to be expression cut open the plane and by the part amplification profile of-backlight assembly that the y direction is looked along the xz of Figure 1A to Figure 1B.In Figure 1A and Figure 1B, backlight assembly 10 comprises framework (bezel) 11, light guide plate (light guide plate at least, LGP) 12, cold-cathode tube (cold cathode fluorescent lamp, CCFL) 13 and reflex housing (reflective shell) 14.Framework 11 has chassis base 11a and a plurality of framework side plate 11b that is connected, and has a plurality of protruding location division 11c on the end face of each framework side plate 11b.Light guide plate 12 is arranged on the chassis base 11a, the side of light guide plate 12 and the framework side plate 11b distance of being separated by.Wherein, the inwall of framework 11 can be coated with a reflecting material, perhaps also a reflecting plate can be set between light guide plate 12 and chassis base 11a.Cold-cathode tube 13 is arranged on the chassis base 11a, and between the side of framework side plate 11b and light guide plate 12.Reflex housing 14 has a reflex housing top board 14a and a reflex housing side plate 14b who is connected, and reflex housing top board 14a has a plurality of pilot hole 14c corresponding to protruding location division 11c, and each pilot hole 14c is near the junction of reflex housing top board 14a and reflex housing side plate 14b.Pilot hole 14c uses for protruding location division 11c and inserts, and makes reflex housing 14 and framework 11 combine, shown in Fig. 1 C.In Fig. 1 C, the light of cold-cathode tube 13 is injected the light guide plate 12 from a side of light guide plate 12 via the reflection of framework 11 and reflex housing 14, and light guide plate 12 penetrates the end face of directing light via light guide plate 12, makes that light can the direct projection display panels.
Yet, it should be noted that protruding location division 11c and pilot hole 14c are simple clamping, do not have the fixing design of any snapping, be easy to when causing reflex housing 14 to be subjected to external force produce the phenomenon that comes off, shown in Fig. 1 D along z direction and framework 11.Thus, the light of cold-cathode tube 13 will penetrate via the space between the end face of reflex housing top board 14a and light guide plate 12, produces so-called light leakage phenomena, has a strong impact on the brightness quality of backlight assembly 10.
Summary of the invention
In view of this, purpose of the present invention is providing a kind of backlight assembly exactly.The design of the snapping in its fastening structure and snapping hole can be so that reflex housing and framework reach the effect of combining closely, and avoid reflex housing and framework to come off and produce light leakage phenomena, improve the brightness quality of backlight assembly widely.
According to purpose of the present invention, a kind of backlight assembly is proposed, this backlight assembly comprises a framework and a reflex housing.Framework comprises a chassis base, a framework side plate and a fastening structure, and the framework side plate is connected with chassis base, and fastening structure is arranged on the outer surface of framework side plate, comprises clamping part and cantilever portion.Reflex housing comprises a reflex housing top board and a reflex housing side plate that is connected, and the reflex housing side plate has a snapping hole, and this snapping hole has perforate and the chute that communicates, the snapping hole in order to the fastening structure snapping, make reflex housing and framework combine closely.
According to another object of the present invention, a kind of backlight assembly is proposed, this backlight assembly comprises a framework, a light guide plate, a light source and a reflex housing.Framework comprises a chassis base, a framework side plate and a fastening structure, and the framework side plate is connected with chassis base.Fastening structure is arranged on the outer surface of framework side plate, and fastening structure comprises a clamping part and a cantilever portion.Clamping part is raised in outside the outer surface of framework side plate with one end and framework side plate ways of connecting, and cantilever portion is raised in outside the outer surface of framework side plate with one end and framework side plate ways of connecting.The other end of cantilever portion is connected with the other end of clamping part, and the bearing of trend of cantilever portion and clamping part is parallel with the bearing of trend of framework side plate, and the width of cantilever portion is less than the width of clamping part.Light guide plate is arranged on the chassis base, and with the framework side plate distance of being separated by.Light source is arranged on the chassis base, and between framework side plate and light guide plate.Reflex housing comprises a reflex housing top board and a reflex housing side plate that is connected, and the reflex housing top board is positioned at the top of light source, and closely contacts with the end face of light guide plate, and reflex housing and framework are combined closely.The thickness of reflex housing side plate is slightly larger than the distance between the outer surface of the inner surface of clamping part of part and framework side plate.The reflex housing side plate has a snapping hole, and the snapping hole has a perforate and a chute that communicates, and the bearing of trend of perforate and chute is parallel with the bearing of trend of reflex housing side plate.The hole of perforate is wider than the groove width of chute, perforate is used for fastening structure and is inserted, and clamping part is protruded from outside the outer surface of reflex housing side plate, when being used to perforate and being inserted by fastening structure, slips into by chute for cantilever portion, make clamping part and this framework side plate closely clamp the reflex housing side plate of the other part of chute, and reflex housing and framework are combined closely.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, be described in detail below:
Description of drawings
Figure 1A is the part exploded view of the traditional backlight assembly of expression.
To be expression cut open the plane and by the part amplification profile of-backlight assembly that the y direction is looked along the xz of Figure 1A to Figure 1B.
Fig. 1 C is the constitutional diagram of the backlight assembly of expression Figure 1B.
Fig. 1 D is the sectional view of the reflex housing of presentation graphs 1C and the framework state when coming off.
Fig. 2 is the part exploded view of expression according to the backlight assembly of preferred embodiment of the present invention.
Fig. 3 is the part enlarged drawing of the framework side plate of presentation graphs 2.
Fig. 4 is the part amplification plan view of the framework side plate of presentation graphs 2.
Fig. 5 is the part enlarged drawing of the reflex housing of presentation graphs 2.
The synoptic diagram of the state when Fig. 6 is the perforate in the reflex housing of the presentation graphs 2 snapping hole of inserting framework with fastening structure.
Fig. 7 is the reflex housing of presentation graphs 2 and the combination synoptic diagram of framework.
Fig. 8 is the reflex housing of presentation graphs 2 and the part vertical view after the frame combination.
Fig. 9 is the side view of the reflex housing of presentation graphs 2.
Figure 10 is the reflex housing of presentation graphs 2 and the part side view after the frame combination.
The drawing reference numeral explanation:
10,20: backlight assembly
11,21: framework
11a, 21a: chassis base
11b, 21b: framework side plate
11c: protruding location division
12,22: light guide plate
13: cold-cathode tube
14,24: reflex housing
14a, 24a: reflex housing top board
14b, 24b: reflex housing side plate
14c: pilot hole
21c: fastening structure
21d: clamping part
21e: cantilever portion
21f: through hole
23: light source
24c: snapping hole
24d: perforate
24e: chute
Embodiment
With reference to Fig. 2, Fig. 2 is the part exploded view of expression according to the backlight assembly of preferred embodiment of the present invention.In Fig. 2, backlight assembly 20 comprise at least framework (bezel) 21, light guide plate (light guide plate, LGP) 22, light source 23 and reflex housing (reflective shell) 24.Framework 21 has chassis base 21a and a plurality of framework side plate 21b that is connected, and the outer surface of framework side plate 21b has at least one fastening structure 21c.Light guide plate 22 is arranged on the chassis base 21a, and with the framework side plate 21b distance of being separated by.Light source 23 is arranged on the chassis base 21a, and between framework side plate 21b and light guide plate 22.Reflex housing 24 has a reflex housing top board 24a and a reflex housing side plate 24b who is connected, and reflex housing side plate 24b has at least one snapping hole 24c, and snapping hole 24c is just like as the perforate of same " T " font.
With reference to Fig. 3 and Fig. 4, Fig. 3 is the part enlarged drawing of the framework side plate of presentation graphs 2 simultaneously, and Fig. 4 is the part amplification plan view of the framework side plate of presentation graphs 2.Each fastening structure 21c comprises a clamping part 21d and a cantilever portion 21e, clamping part 21d and cantilever portion 21e are raised in outside the outer surface of framework side plate 21b with one end and framework side plate 21b ways of connecting respectively, and the other end of clamping part 21d and cantilever portion 21e interconnects.The bearing of trend of clamping part 21d and cantilever portion 21e is parallel with the bearing of trend (being the y direction) of framework side plate 21b, and the width D 1 of clamping part 21d is greater than the width D 2 of cantilever portion 21e.In addition, framework side plate 21b can have a plurality of through hole 21f, clamping part 21d is raised in outside the outer surface of framework side plate 21b with the hole wall ways of connecting of one end and through hole 21f, and cantilever portion 21e is raised in outside the outer surface of framework side plate 21b with another hole wall ways of connecting of one end and through hole 21f.It should be noted that the distance between the outer surface of the inner surface of clamping part 21d of part and framework side plate 21b is slightly less than the thickness of reflex housing side plate 24b.
With reference to Fig. 5, Fig. 5 is the part enlarged drawing of the reflex housing of presentation graphs 2.Snapping hole 24c has a perforate 24d and a chute 24e who communicates, and the bearing of trend of perforate 24d and chute 24e is parallel with the bearing of trend of reflex housing side plate 24b (being the y direction), and the wide P1 in the hole of perforate 24d is greater than the groove width P2 of chute 24e.Perforate 24d uses for fastening structure 21c and inserts, and clamping part 21d and cantilever portion 21e are protruded from outside the outer surface of reflex housing side plate 24b, as shown in Figure 6.When the reflex housing 24 of Fig. 6 is promoted by past-y direction, when being used to perforate 24d and being inserted by fastening structure 21c, inserts chute 24e for cantilever portion 21e, make clamping part 21d and framework side plate 21b closely clamp the reflex housing side plate 24b of the other part of chute 24e, reach the effect that reflex housing 24 and framework 21 are combined closely, as shown in Figures 7 and 8.Simultaneously, reflex housing top board 24a is positioned at the top of light source 23, and the bottom surface of reflex housing 24a closely contacts with the end face of light guide plate 22.
Yet those skilled in the art can also understand technology of the present invention and not be confined to this, as shown in Figure 9, angle X between reflex housing top board 24a and the reflex housing side plate 24b is 80~90 degree, the bottom surface that can make reflex housing top board 24a in reflex housing 24 and framework 21 in conjunction with the time closely contact with the end face of light guide plate 22, further prevent the generation of light leakage phenomena.In addition, as shown in figure 10, the end face of the bottom surface of reflex housing top board 24a and framework side plate 21b in reflex housing 24 and framework 21 in conjunction with the time at a distance of a L at interval, can be used as reflex housing 24 and framework 21 in conjunction with the time the buffering spacing.In addition, light source 23 for example is that (cold cathode fluorescent lamp, CCFL), and chassis base 21a, framework side plate 21b and fastening structure 21c can be integrated structures to cold-cathode tube.
The disclosed backlight assembly of the above embodiment of the present invention, the snapping design in its fastening structure and snapping hole, really can be so that reflex housing and framework reach the effect of combining closely, avoid reflex housing and framework to take off and produce light leakage phenomena, improve the brightness quality of backlight assembly widely.
In sum; though the present invention with a preferred embodiment openly as above; yet it is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; certainly can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claim was defined.

Claims (17)

1. backlight assembly comprises:
One framework, this framework comprises:
One chassis base;
The one framework side plate that is connected with this chassis base; And
One is arranged at the fastening structure on the outer surface of this framework side plate, comprises clamping part and cantilever portion; And
One reflex housing, this reflex housing comprises:
One reflex housing top board; And
The one reflex housing side plate that is connected with this reflex housing top board, this reflex housing side plate has a snapping hole, this snapping hole has perforate and the chute that communicates, this snapping hole in order to this fastening structure snapping, make this reflex housing and this framework combine closely, wherein this perforate is used for this fastening structure and is inserted, and this clamping part and this cantilever portion are protruded from outside the outer surface of this reflex housing side plate, this chute is used to supply this cantilever portion to slip into when this perforate is inserted by this fastening structure, makes this clamping part and this framework side plate closely clamp this reflex housing side plate of the other part of this chute.
2. backlight assembly as claimed in claim 1, it is characterized in that: this clamping part is raised in outside the outer surface of this framework side plate with one end and this framework side plate ways of connecting, and the distance between the inner surface of this clamping part of part and the outer surface of this framework side plate is slightly less than the thickness of this reflex housing side plate; And
This cantilever portion is raised in outside the outer surface of this framework side plate with one end and this framework side plate ways of connecting, the other end of this cantilever portion is connected with the other end of this clamping part, the bearing of trend of this cantilever portion and this clamping part is parallel with the bearing of trend of this framework side plate, and the width of this cantilever portion is less than the width of this clamping part.
3. backlight assembly as claimed in claim 2 is characterized in that: the bearing of trend of this perforate and this chute is parallel with the bearing of trend of this reflex housing side plate, and the hole of this perforate is wider than the groove width of this chute.
4. backlight assembly as claimed in claim 1, it is characterized in that: this framework side plate has a through hole, this clamping part is raised in outside the outer surface of this framework side plate with a hole wall ways of connecting of one end and this through hole, and the distance between the inner surface of this clamping part of part and the outer surface of this framework side plate is slightly less than the thickness of this reflex housing side plate; And
This cantilever portion is raised in outside the outer surface of this framework side plate with another hole wall ways of connecting of one end and this through hole, the other end of this cantilever portion is connected with the other end of this clamping part, the bearing of trend of this cantilever portion and this clamping part is parallel with the bearing of trend of this framework side plate, and the width of this cantilever portion is less than the width of this clamping part.
5. backlight assembly as claimed in claim 4 is characterized in that: the bearing of trend of this perforate and this chute is parallel with the bearing of trend of this reflex housing side plate.
6. backlight assembly as claimed in claim 1 is characterized in that: the structure that this chassis base, this framework side plate and this fastening structure are formed in one.
7. backlight assembly as claimed in claim 1 is characterized in that: this snapping hole is the perforate of one " T " font.
8. backlight assembly as claimed in claim 1 is characterized in that: the angle between this reflex housing top board and this reflex housing side plate is 80~90 degree.
9. backlight assembly as claimed in claim 1 is characterized in that: the end face of the bottom surface of this reflex housing top board and this framework side plate when this reflex housing and this framework snapping at a distance of one at interval.
10. backlight assembly as claimed in claim 1 is characterized in that: this backlight assembly also comprises:
One light guide plate, this light guide plate is arranged on this chassis base, and with this framework side plate distance of being separated by, the end face of this light guide plate closely contacts with the bottom surface of this reflex housing top board; And
One light source, this light source is arranged on this chassis base, and between this framework side plate and this light guide plate, this light source is positioned at the below of this reflex housing top board.
11. backlight assembly as claimed in claim 10 is characterized in that: this light source is a cold-cathode tube.
12. a backlight assembly comprises:
One framework, this framework comprises:
One chassis base;
The one framework side plate that is connected with this chassis base; And
One is arranged at the fastening structure on the outer surface of this framework side plate, and this fastening structure comprises:
One clamping part, this clamping part is raised in outside the outer surface of this framework side plate with one end and this framework side plate ways of connecting; And
One cantilever portion, this cantilever portion is raised in outside the outer surface of this framework side plate with one end and this framework side plate ways of connecting, the other end of this cantilever portion is connected with the other end of this clamping part, the bearing of trend of this cantilever portion and this clamping part is parallel with the bearing of trend of this framework side plate, and the width of this cantilever portion is less than the width of this clamping part;
One light guide plate, this light guide plate is arranged on this chassis base, and with this framework side plate distance of being separated by;
One light source, this light source is arranged on this chassis base, and between this framework side plate and this light guide plate; And
One reflex housing, this reflex housing comprises:
One reflex housing top board, this reflex housing top board is positioned at the top of this light source, and the bottom surface of this reflex housing top board closely contacts with the end face of this light guide plate; And
The one reflex housing side plate that is connected with this reflex housing top board, the thickness of this reflex housing side plate is slightly larger than the distance between the outer surface of the inner surface of this clamping part of part and this framework side plate, this reflex housing side plate has a snapping hole, this snapping hole has a perforate and a chute that communicates, the bearing of trend of this perforate and this chute is parallel with the bearing of trend of this reflex housing side plate, the hole of this perforate is wider than the groove width of this chute, this perforate is used for this fastening structure and is inserted, and this clamping part is protruded from outside the outer surface of this reflex housing side plate, this chute is used to supply this cantilever portion to slip into when this perforate is inserted by this fastening structure, make this clamping part and this framework side plate closely clamp this reflex housing side plate of the other part of this chute, and this reflex housing and this framework are combined closely.
13. backlight assembly as claimed in claim 12 is characterized in that: the structure that this fastening structure, this chassis base and this framework side plate are formed in one.
14. backlight assembly as claimed in claim 12 is characterized in that: this snapping hole is the perforate of one " T " font.
15. backlight assembly as claimed in claim 12 is characterized in that: the angle between this reflex housing top board and this reflex housing side plate is 80~90 degree.
16. backlight assembly as claimed in claim 12 is characterized in that: the end face of the bottom surface of this reflex housing top board and this framework side plate when this reflex housing and this framework snapping at a distance of one at interval.
17. backlight assembly as claimed in claim 12 is characterized in that: this light source is a cold-cathode tube.
CNB2004100301984A 2004-03-22 2004-03-22 Backlight assembly Expired - Lifetime CN100485480C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100301984A CN100485480C (en) 2004-03-22 2004-03-22 Backlight assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100301984A CN100485480C (en) 2004-03-22 2004-03-22 Backlight assembly

Publications (2)

Publication Number Publication Date
CN1564063A CN1564063A (en) 2005-01-12
CN100485480C true CN100485480C (en) 2009-05-06

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Application Number Title Priority Date Filing Date
CNB2004100301984A Expired - Lifetime CN100485480C (en) 2004-03-22 2004-03-22 Backlight assembly

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100410757C (en) * 2005-02-03 2008-08-13 中华映管股份有限公司 Backlight module and liquid crystal display device module
CN100359384C (en) * 2005-09-02 2008-01-02 友达光电股份有限公司 Backlight module and assembly structure thereof
CN100410769C (en) * 2006-02-10 2008-08-13 友达光电股份有限公司 Back light module and liquid crystal display device utilizing the same back light module
KR101020923B1 (en) * 2010-01-07 2011-03-09 엘지이노텍 주식회사 Optical assembly, backlight unit having the same, and display apparatus thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
US634868 B! 2002.02.05

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