CN1928652A - Back light component and liquid crystal display device - Google Patents
Back light component and liquid crystal display device Download PDFInfo
- Publication number
- CN1928652A CN1928652A CN 200510037124 CN200510037124A CN1928652A CN 1928652 A CN1928652 A CN 1928652A CN 200510037124 CN200510037124 CN 200510037124 CN 200510037124 A CN200510037124 A CN 200510037124A CN 1928652 A CN1928652 A CN 1928652A
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- CN
- China
- Prior art keywords
- module backlight
- elastic part
- grounding elastic
- metal framework
- guide plate
- 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.)
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Abstract
The related backlight module comprises: a light guide plate, a light source group included a source and a near reflection cover, and a metal frame. Besides, this invention also includes a grounding elastic piece set between the cover and frame. This invention can ensure grounding effect.
Description
[technical field]
The present invention relates to the liquid crystal indicator of a kind of module backlight and this module backlight of employing.
[background technology]
Because the luminiferous display device of LCD right and wrong, therefore for reaching display effect, need provide a planar light source device to realize Presentation Function to LCD, as module backlight, its function be to provide the area source that brightness is abundant and be evenly distributed to LCD.
A kind of module backlight 100 of prior art as shown in Figure 1, this module 100 backlight comprises a light guide plate 110, a light sources 114, a reflecting plate 115 and a metal framework 116.
This light guide plate 110 comprises the exiting surface 112, one and these exiting surface 112 opposed bottom surface 113 that an incidence surface 111, one and this incidence surface 111 intersect.This light sources 114 comprises a light source 117 and a reflex housing 118.
This light source 117 is fluorescent tubes of a strip, relatively this incidence surface 111 is provided with, and these reflex housing 118 contiguous these light sources 117 are provided with, and is penetrated to escaping by the light that light source 117 penetrates preventing, and the light that as far as possible makes light source 117 concentrates and to inject in this light guide plate 110, improves light utilization efficiency.These reflecting plate 115 relative these bottom surfaces 113 are provided with.This metal framework 116 is accommodated this light guide plate 110 and this light sources 114 in it.
Because fluorescent tube is by external power connection, and its needed power supply that throws light on is provided, therefore in order to prevent that the reflex housing 118 that uses metal material to make from producing unnecessary electrostatic accumulation, need make reflex housing 118 ground connection.
Owing to be easy to generate to extraradial electromagnetic wave during lamp works, may produce other electronic package of liquid crystal indicator and disturb, it is electromagnetic interference (Electro-Magnetic Interference is called for short EMI), and metallic reflector 118 has electric conductivity, and make this metallic reflector 118 ground connection, then it can provide adequate shielding to display panels, reduces electromagnetic wave the normal demonstration generation of other electronic package of liquid crystal indicator is disturbed.
But being thumped when this kind structure causes the distortion of moment, and this reflex housing 118 separates with this metal framework 116, causes imperfect earth, can cause harmful effect to liquid crystal indicator.
[summary of the invention]
For the reflex housing that solves prior art module backlight can not effective grounding problem, be necessary to provide a kind of module backlight that can make the reflex housing effective grounding.
Also be necessary to provide a kind of liquid crystal indicator that adopts above-mentioned module backlight.
The disclosed a kind of module backlight of one preferred embodiment comprises that a light guide plate, a light sources and accommodate the metal framework of this light guide plate and this light sources.This light sources comprises the reflex housing that a light source and contiguous this light source are provided with.Wherein, this module backlight comprises a grounding elastic part, and this grounding elastic part is arranged between this reflex housing and this metal framework.
The disclosed a kind of liquid crystal indicator of one preferred embodiment comprises a module backlight, and this module backlight comprises that a light guide plate, a light sources and accommodate the metal framework of this light guide plate and this light sources.This light sources comprise that a light source and contiguous this light source be provided with reflex housing.Wherein, this module backlight comprises a grounding elastic part, and this grounding elastic part is arranged between this reflex housing and this metal framework.
Compared to prior art, above-mentioned module backlight and adopt the grounding elastic part of the liquid crystal indicator of this module backlight to be arranged between metal framework and the reflex housing, this reflex housing keeps Elastic Contact closely by elasticity and this metal framework of this grounding elastic part, and this kind structure can effectively make reflex housing contact really with metal framework and reach the effect of ground connection.
[description of drawings]
Fig. 1 is a kind of prior art module synoptic diagram backlight.
Fig. 2 is the present invention's module first embodiment synoptic diagram backlight.
Fig. 3 is the grounding elastic part schematic perspective view of the present invention's module first embodiment backlight.
Fig. 4 is a liquid crystal indicator synoptic diagram of the present invention.
Fig. 5 is the grounding elastic part schematic perspective view of the present invention's module second embodiment backlight.
[embodiment]
With reference to Fig. 2 and Fig. 3, Fig. 2 is the present invention's module first embodiment synoptic diagram backlight, and Fig. 3 is the grounding elastic part schematic perspective view of the present invention's module first embodiment backlight.This module 12 backlight comprises a light guide plate 16, a light sources 14, a metal framework 13 and a grounding elastic part 15.
This light guide plate 16 comprises an exiting surface 161 and one and these exiting surface 161 opposed bottom surface 162.This light sources 14 comprises a light source 141 and a reflex housing 142, and this reflex housing 142 comprises one first side 143, one second side 144 and one the 3rd side 145.This grounding elastic part 15 comprises a substrate 153 and at least one contact site 154, and this contact site 154 is bent sheet, and each contact site 154 is provided with at interval.
This light source 141 is fluorescent tubes of a strip, and this reflex housing 142 contiguous these light sources 141 are provided with, and is penetrated to escaping by the light that light source 141 penetrates preventing, and the light of light source 141 is concentrated inject in this light guide plate 16, improve light utilization efficiency.This metal framework 13 is accommodated this light guide plate 16 and this light sources 14 in it.This grounding elastic part 15 is arranged between first side 143 and this metal framework 13 of this reflex housing 142, the bottom surface 162 of closing on this light guide plate 16 is provided with, this grounding elastic part 15 two relatively the surface respectively with first side 143 and these metal framework 13 Elastic Contact of this reflex housing 142.
These grounding elastic part 15 materials can adopt thin stainless steel, and it has restoring force strong, and oxidation resistant characteristic can effectively make reflex housing 142 reach the effect of ground connection with metal framework 13 certain contacts.
Above-mentioned module backlight 12 is because the existence of grounding elastic part 15, make the substrate 153 of this grounding elastic part 15 contact with 13 of this metal frameworks, the contact site 154 of this grounding elastic part 15 contacts with first side 143 of this reflex housing 142, this reflex housing 142 keeps Elastic Contact closely by the elasticity and the metal framework 13 of this grounding elastic part 15, and this kind structure can effectively make reflex housing 142 reach the effect of ground connection with metal framework 13 certain contacts.
With reference to Fig. 4, be liquid crystal indicator synoptic diagram of the present invention.This liquid crystal indicator 10 comprises the liquid crystal panel 11 of relative this module 12 backlight with of an above-mentioned module 12 backlight.
Yet it is described that grounding elastic part is not limited to above-mentioned embodiment, and for example, the grounding elastic part 15 of first embodiment also can be arranged between this second side 144 and this metal framework 13 sidewall (not shown)s; With reference to Fig. 5, be the grounding elastic part schematic perspective view of module second embodiment backlight, the contact site 254 of this grounding elastic part 25 is oblique sheets.Grounding elastic part and reflex housing can lock on the metal framework or be welded on the metal framework, and this grounding elastic part material can adopt beryllium copper or phosphor bronze etc.
Claims (10)
1. module backlight, it comprises:
One light guide plate;
One light sources, it comprises the reflex housing that a light source and contiguous this light source are provided with;
One accommodates the metal framework of this light guide plate and this light sources;
It is characterized in that: this module backlight comprises a grounding elastic part, and it is arranged between this reflex housing and this metal framework.
2. module backlight as claimed in claim 1 is characterized in that: this light guide plate comprises a bottom surface, and contiguous this bottom surface of this metal framework is provided with.
3. module backlight as claimed in claim 2 is characterized in that: the bottom surface that this grounding elastic part closes on this light guide plate is provided with.
4. module backlight as claimed in claim 2 is characterized in that: this metal framework comprises a sidewall, and contiguous this sidewall of this grounding elastic part is provided with.
5. module backlight as claimed in claim 1 is characterized in that: this grounding elastic part comprises a substrate and at least one contact site.
6. module backlight as claimed in claim 5 is characterized in that: this at least one contact site is a bent sheet.
7. module backlight as claimed in claim 5 is characterized in that: this at least one contact site is oblique sheet.
8. module backlight as claimed in claim 5 is characterized in that: this grounding elastic part comprises a plurality of contact sites, and this each contact site is to be provided with at interval.
9. module backlight as claimed in claim 1 is characterized in that: the material of this grounding elastic part is stainless steel or beryllium copper or phosphor bronze.
10. liquid crystal indicator, it comprises a module backlight, this module backlight is the described module backlight of arbitrary claim in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100371248A CN100403115C (en) | 2005-09-06 | 2005-09-06 | Back light component and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100371248A CN100403115C (en) | 2005-09-06 | 2005-09-06 | Back light component and liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1928652A true CN1928652A (en) | 2007-03-14 |
| CN100403115C CN100403115C (en) | 2008-07-16 |
Family
ID=37858683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100371248A Expired - Fee Related CN100403115C (en) | 2005-09-06 | 2005-09-06 | Back light component and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100403115C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054452A (en) * | 2016-07-11 | 2016-10-26 | 深圳天珑无线科技有限公司 | Liquid crystal module and display |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11311775A (en) * | 1998-04-28 | 1999-11-09 | Matsushita Electric Ind Co Ltd | Liquid crystal display device |
| JP2000148028A (en) * | 1998-11-13 | 2000-05-26 | Toshiba Corp | Planar display device |
| JP4051469B2 (en) * | 1999-03-26 | 2008-02-27 | 三菱電機株式会社 | Liquid crystal display |
| CN1279392C (en) * | 2003-01-09 | 2006-10-11 | 友达光电股份有限公司 | Liquid crystal display backlight module device |
| CN2888476Y (en) * | 2005-11-17 | 2007-04-11 | 群康科技(深圳)有限公司 | Backlight module assembly and LCD |
-
2005
- 2005-09-06 CN CNB2005100371248A patent/CN100403115C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054452A (en) * | 2016-07-11 | 2016-10-26 | 深圳天珑无线科技有限公司 | Liquid crystal module and display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100403115C (en) | 2008-07-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20170906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |