CN101393350B - Side light source type LCD backlight source - Google Patents
Side light source type LCD backlight source Download PDFInfo
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- CN101393350B CN101393350B CN2007101221707A CN200710122170A CN101393350B CN 101393350 B CN101393350 B CN 101393350B CN 2007101221707 A CN2007101221707 A CN 2007101221707A CN 200710122170 A CN200710122170 A CN 200710122170A CN 101393350 B CN101393350 B CN 101393350B
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- backboard
- framework
- backlight
- side light
- lamp reflector
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Abstract
The invention relates to a liquid crystal display backlight source, which comprises a liquid crystal display panel, a framework, a lamp reflector, a lighting tube, a backlight backboard, a panel driving circuit, and a driving chip arranged on the panel driving circuit, wherein notches are arranged the panel driving circuit on a framework wrapping part of the framework and a backboard wrapping partof the backlight backboard to allow the lamp reflector to expose from the framework and the backlight backboard. As the framework wrapping part of the prior framework and the backboard wrapping partofthe prior backlight backboard are removed from the position on which a COF is arranged, the liquid crystal display backlight ensures that lamp components are not wrapped by the backlight backboardand the framework, thereby shortening the distance between the COF and the lamp reflector, further shortening the length of the COF and reducing the product cost.
Description
Technical field
The present invention relates to the structure of side light emitting source formula LCD backlight source, belong to the liquid crystal panel manufacturing technology.
Background technology
The LCD backlight source that the available liquid crystal flat-panel screens mainly adopts all is a side light emitting source formula, and it is mainly formed shown in Figure 1A and Figure 1B and comprises: have the display panels 1, framework 2, lamp reflector 3, a pair of fluorescent tube 4, backlight backboard 5 of sandwich construction, two groups of lamp lines 6, panel drive circuit (hereinafter to be referred as: COF) 7 and the chip for driving that is arranged on the COF7 (be called for short: CHIP) 8.Wherein, lamp reflector 3, fluorescent tube 4 and lamp line 6 can be referred to as the lamp assembly; Framework 2 specifically comprises: backboard chassis body portion 21, framework parcel portion 22 and framework fastener 23; Backlight backboard 5 specifically comprises: back plate main body portion 51, backboard parcel portion 52 and backboard fastener 53.Wherein, framework fastener 23 and the 53 mutual clampings of backboard fastener, thus this LCD backlight source is fitted together.As can be seen from the figure, the lamp assembly that the available liquid crystal display backlight is adopted and the fit of backlight backboard are: two groups of lamp lines 6 lay respectively at the both sides, top of lamp reflector 3, are that the exposed part of lamp line 6 adopts backboard parcel portion 52 to wrap up with protection lamp line 6 at the side of lamp assembly; The upper end of framework parcel portion 22 parcel lamp assemblies is with protection lamp line 6.
The defective of prior art is: though adopt backlight backboard 5, framework parcel portion 22 and the backboard parcel portion 52 of packaging type assembling can play the effect of protecting lamp line 6 and strengthening assemblies such as backlight backboard 5; but owing to also be provided with CHIP8 on the COF7; therefore also must reserve certain unnecessary length; thereby make COF7 will have long length; for the Master Cost of COF great number; this pattern has in a disguised form increased the cost of LCD backlight source, and has also caused very big waste.
Summary of the invention
The problem to be solved in the present invention is: under the prerequisite of assembling that guarantees each assembly of side light emitting source formula LCD backlight source and display performance, reduce the length of COF as far as possible.
In order to address the above problem, one embodiment of the present of invention have provided a kind of side light emitting source formula LCD backlight source, comprise: framework, lamp reflector, fluorescent tube, backlight backboard, panel drive circuit and be arranged on chip for driving on this panel drive circuit, wherein, the backboard parcel portion of the framework parcel portion of described framework and described backlight backboard, offer breach being provided with described panel drive circuit place, described lamp reflector is exposed from described framework and backlight backboard.
By the present invention, because in the place that is provided with COF, the framework parcel portion of available frame and the backboard parcel portion of existing backlight backboard have been removed, make the lamp assembly can't help backlight backboard and framework parcel, thereby shortened distance between COF and the lamp reflector, thereby shortened the length of COF, reduced cost of products.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Figure 1A is the schematic perspective view of existing side light emitting source formula LCD backlight source;
Figure 1B is the cross sectional representation of existing side light emitting source formula LCD backlight source;
Fig. 2 A is the schematic perspective view of the embodiment of the invention 1 described side light emitting source formula LCD backlight source;
Fig. 2 B is the cross sectional representation of the embodiment of the invention 1 described side light emitting source formula LCD backlight source;
Fig. 3 is the cross sectional representation of the embodiment of the invention 2 described side light emitting source formula LCD backlight source;
Fig. 4 is the cross sectional representation of the embodiment of the invention 3 described side light emitting source formula LCD backlight source;
Fig. 5 is the schematic perspective view of the embodiment of the invention 3 described side light emitting source formula LCD backlight source.
Embodiment
Present embodiment provides a kind of side light emitting source formula LCD backlight source, shown in Fig. 2 A, comprising: framework 2, lamp reflector 3, fluorescent tube 4, backlight backboard 5, COF7 and be arranged on CHIP8 on the COF7.Wherein, the framework parcel portion 22 of framework 2 and the backboard parcel portion 52 of backlight backboard 5 offer breach 24 being provided with the COF7 place, and lamp reflector 3 is exposed from framework 2 and backlight backboard 5.Shown in Fig. 2 B, be equivalent to framework is wrapped up portion 22 and backboard parcel portion 52 from removing from framework 2 and backlight backboard 5.Each ingredient of framework 2 and backlight backboard 5 can be one-body molded or be fitted together, but that integrated advantage is an intensity is higher, makes framework 2 and backlight backboard 5 can do very thinly.And, framework fastener 23 and backboard fastener 53 clamping setting mutually shown in Figure 1B.
Need to prove that herein fluorescent tube 4 wherein can have one or more, corresponding lamp line 6 also can have one or more groups, be that example describes only in the present embodiment with two fluorescent tubes 4 and two groups of lamp lines 6, for the situation of the fluorescent tube and the lamp line of other quantity, structure is identical, repeats no more herein.
In Fig. 2 B, two groups of lamp lines 6 and back plate main body portion 51 all are arranged side by side the side outside in lamp reflector 3, and lamp line 6 is positioned at the top of back plate main body portion 51, particularly, lamp line 6 can adopt multiple mode to fix, and for example can paste fixing by the adhesive tape among Fig. 2 11; Chassis body portion 21 is positioned at the opposite side outside of the lamp reflector 3 relative with lamp line 6; The overhead height of chassis body portion 21 is lower than the overhead height of lamp reflector 3.
Implement the structure of described side light emitting source formula LCD backlight source by this, owing to removed framework parcel of the prior art portion 22 on the framework 2 in the position that COF is set, also removed backboard parcel portion 52 on the backlight backboard 5 of relevant position, make the lamp assembly COF position is being set no longer by backlight backboard 5 and framework 2 parcels, thereby shortened distance between COF7 and the lamp reflector 3, thereby shortened the length of COF7, reduced cost of products.Through experiment, make the length of COF7 reduce 4.86mm nearly by present embodiment, thereby reach the purpose that reduces cost.
Need to prove herein, adopting the described structure of present embodiment mainly is in order to reduce the length of COF7, but on the side light emitting source formula LCD backlight source of reality is not all to be provided with COF7 everywhere, for the place that COF7 is not set, both can adopt the described structure of present embodiment also can adopt structure shown in the prior art shown in Figure 1B, these two kinds of schemes all are feasible.
Present embodiment provides another kind of side light emitting source formula LCD backlight source, and as shown in Figure 3, on the basis of embodiment 1, the top along the lamp reflector 3 that exposes in the present embodiment also is laid with insulation protection adhesive tape 9.When a side of lamp reflector 3 also is provided with lamp line 6, can also not be laid with insulation protection adhesive tape 9 along the top outer edge and the lamp line 6 of lamp reflector 3 with lamp reflector 3 contacted outward flanges, the top and the lamp line 6 of lamp reflector 3 are bundled together.Particularly, an end of insulation protection adhesive tape 9 is laid in the top outer of back plate main body portion 51; The other end is laid in the top outer of the opposite side of the lamp reflector 3 relative with lamp line 6.
Owing to lamp line 6 is wrapped up covering by insulation protection adhesive tape 9, therefore can prevent the electrostatic influence that fluorescent tube is produced by Chip8 and lamp reflector 3 frictional impacts, when protection lamp line and assurance fluorescent tube are normally luminous, ensure the display performance of LCD.
Present embodiment provides another side light emitting source formula LCD backlight source, as shown in Figure 4.As different from Example 2, in the side light emitting source formula LCD backlight source in the present embodiment, also further be provided with a groove 10 at the top of lamp reflector 3, CHIP8 is arranged in the groove 10.For the position of groove 10 more clearly is described, can be referring to Fig. 5, wherein, the dash area of strip is the position of groove 10.
Implement the structure of described side light emitting source formula LCD backlight source by this, except advantage with embodiment 1 described structure, owing to CHIP8 is arranged in the groove 10, therefore the length of COF7 is further shortened, so that can further reduce cost.
Need to prove that herein the effect that insulation protection adhesive tape 9 is set in the present embodiment is similar to Example 2, all is in order to protect lamp line and fluorescent tube to avoid electrostatic influence.But the insulation protection adhesive tape 9 in the present embodiment is not essential for the length that shortens COF7, is possible if those skilled in the art adopt other modes to achieve the above object yet.
Below introduce the manufacture method of the described liquid crystal panel backlight of present embodiment, mainly comprise:
According to existing Sheet Metal Forming Technology benchmark, progressively realize the basic structure of backlight backboard 5 by technologies such as pressing and bending punchings, key is the overlapping part that is with lamp line 6 assemblies such as lamp such as grade, remove the fit of existing COF corresponding position backlight backboard 5 parcel lamp lines 6, unnecessary framework parcel portion and backboard parcel portion are removed, reduce the backboard area of unnecessary obstruction COF 7 reductions;
After backlight backboard 5 machines, the lamp assembly is installed, is comprised fluorescent tube 4, lamp reflector 3 and insulation protection adhesive tape 9 etc.
After having assembled other assemblies of backlight, assembling backlight framework 2.Wherein, stay necessary part, be used to prevent light leak etc., to reduce the invalid that hinders the COF7 reduction removing the existing parcel mode in COF corresponding position with lamp assembled places such as backlight backboard 5 and lamp lines 6;
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. side light emitting source formula LCD backlight source comprises: framework, lamp reflector, fluorescent tube, backlight backboard, panel drive circuit and be arranged on chip for driving on this panel drive circuit is characterized in that:
The backboard parcel portion of the framework parcel portion of described framework and described backlight backboard offers breach being provided with described panel drive circuit place, and described lamp reflector is exposed from described framework and backlight backboard.
2. side light emitting source formula LCD backlight source according to claim 1 is characterized in that: the top along the described lamp reflector that exposes also is laid with the insulation protection adhesive tape.
3. side light emitting source formula LCD backlight source according to claim 2 is characterized in that: a side outside of described lamp reflector also is provided with lamp line, and described lamp line and lamp reflector are bundled together by described insulation protection adhesive tape.
4. side light emitting source formula LCD backlight source according to claim 3 is characterized in that: described lamp line is pasted a side outside of being fixed in described lamp reflector by adhesive tape.
5. according to the described either side light emitting source of claim 1-4 formula LCD backlight source, it is characterized in that: the top of described lamp reflector is provided with a groove, and described chip for driving is arranged in the described groove.
6. side light emitting source formula LCD backlight source according to claim 5, it is characterized in that: described fluorescent tube has a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101221707A CN101393350B (en) | 2007-09-21 | 2007-09-21 | Side light source type LCD backlight source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101221707A CN101393350B (en) | 2007-09-21 | 2007-09-21 | Side light source type LCD backlight source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101393350A CN101393350A (en) | 2009-03-25 |
| CN101393350B true CN101393350B (en) | 2010-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101221707A Active CN101393350B (en) | 2007-09-21 | 2007-09-21 | Side light source type LCD backlight source |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809841B (en) * | 2012-08-21 | 2015-05-20 | 深圳市华星光电技术有限公司 | Liquid display device |
| CN104614884A (en) * | 2015-02-28 | 2015-05-13 | 京东方科技集团股份有限公司 | Liquid crystal display module and display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1646854A (en) * | 2002-03-29 | 2005-07-27 | 松下电器产业株式会社 | Illumination unit and liquid crystal display apparatus comprising same |
| CN2821615Y (en) * | 2005-07-14 | 2006-09-27 | 大旺电子有限公司 | Multi-function rack for back light plate |
-
2007
- 2007-09-21 CN CN2007101221707A patent/CN101393350B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1646854A (en) * | 2002-03-29 | 2005-07-27 | 松下电器产业株式会社 | Illumination unit and liquid crystal display apparatus comprising same |
| CN2821615Y (en) * | 2005-07-14 | 2006-09-27 | 大旺电子有限公司 | Multi-function rack for back light plate |
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| Publication number | Publication date |
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| CN101393350A (en) | 2009-03-25 |
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Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20141208 Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20141208 |
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Free format text: CORRECT: ADDRESS; FROM: 100176 DAXING, BEIJING TO: 100015 CHAOYANG, BEIJING |
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Effective date of registration: 20141208 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176 Beijing economic and Technological Development Zone, West Central Road, No. 8 Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
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Effective date of registration: 20201130 Address after: 215200 No. 1700, Wujiang economic and Technological Development Zone, Suzhou, Jiangsu, Zhongshan North Road Patentee after: Gaochuang (Suzhou) Electronics Co.,Ltd. Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd. Address before: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee before: BOE TECHNOLOGY GROUP Co.,Ltd. Patentee before: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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