CN100507664C - Sidelight type aphototropism module and liquid crystal display device - Google Patents
Sidelight type aphototropism module and liquid crystal display device Download PDFInfo
- Publication number
- CN100507664C CN100507664C CNB2004100015037A CN200410001503A CN100507664C CN 100507664 C CN100507664 C CN 100507664C CN B2004100015037 A CNB2004100015037 A CN B2004100015037A CN 200410001503 A CN200410001503 A CN 200410001503A CN 100507664 C CN100507664 C CN 100507664C
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- Prior art keywords
- light
- liquid crystal
- back plane
- module
- guide plate
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- Expired - Lifetime
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- 239000004973 liquid crystal related substance Substances 0.000 title claims description 24
- 230000005142 aphototropism Effects 0.000 title 1
- 238000005452 bending Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 10
- 238000004512 die casting Methods 0.000 claims description 5
- 230000011514 reflex Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract 1
- 244000048879 Funtumia elastica Species 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention is a side light-type backlight module and a LCD, where the former has a light source group, a light guide plate and a reflecting backboard. The reflecting backboard has a first light-reflecting surface and a bent part bending to the first surface, the light guide plate is arranged on the first surface and connected to the bent part, one side of the light guide plate and the bent part form a cavity between, and the light source group is installed in the cavity. And the first surface above can have a light-reflecting character with the help of pressure casting or coating a reflecting layer.
Description
Technical field
The present invention relates to a kind of backlight module, particularly relate to a kind of side light type back light module and liquid crystal indicator that utilizes the backboard that combines with reflector plate to be combined into simplified assembly.
Background technology
Along with the evolution of display technology, display device produces various new-type display device from the continuous evolution of traditional cathode ray tube (CRT).Wherein, advantages such as that liquid crystal indicator (LCD) possesses is frivolous, power saving, low radiation, therefore become one of common now display device gradually, can be widely used among communication, information or the consumption electronic products such as mobile computer, digital camera, Video Camera, mobile phone.
Liquid crystal indicator mainly is to show with a liquid crystal panel (LCD panel), because liquid crystal panel itself can't be luminous, therefore must supply the light source that brightness is abundant and be evenly distributed, and makes normally show image of liquid crystal panel.The function of this supply light source is promptly undertaken by (backlight) backlight module.Backlight module can be according to the difference of its light source position, and is divided into two kinds of side light type back light module and straight-down negative (or claiming flat) backlight modules.
See also Fig. 1, it shows the exploded view of an existing side light type back light module 1.The side light type back light module 1 of Fig. 1 is made up of framework 11, astigmatic device group 12, light guide plate 13, reflector plate 14, backboard 15 and the light sources 16 that is arranged at both sides.Light sources 16 provides the modular unit of the light source of side light type back light module 1, which is provided with fluorescent tube 161 as light source, light sources reflector plate 162 and directly is connected with fluorescent tube 161 and in order to drive and the assemblies such as axle bush rubber cushion (bushingrubber) 163, connection line (cable) 164 and connector (connector) 165 of fixed lamp tube 161.Above-mentioned existing side light type back light module 1 as shown in Figure 1, from bottom to top is assembled in reflector plate 14, light guide plate 13, astigmatic device group 12 and framework 11 on the backboard 15 when assembling in regular turn.Insert in the gap of light guide plate 13 and backboard 15 16 both sides that are assembled in backlight module 1 of light sources.
Please again referring to the 2nd figure, be illustrated at the light reflection configuration of light sources 16 in the above-mentioned existing side light type back light module 1.As seen from Figure 2,, therefore light sources reflector plate 162 must be set because the reflector plate 14 of backboard 15 does not extend to the position of light sources 16, excessive to prevent fluorescent tube 161 light, and effectively utilize light source.Among Fig. 2, light sources reflector plate 162 is a C font, coats the assembly of light sources 16 such as fluorescent tube 161, and overlaps with the edge of light guide plate 13 and reflector plate 14 etc., does not expose with the light of guaranteeing fluorescent tube 161.So, can form a cavity 17 between light sources reflector plate 162, reflector plate 14 and the light guide plate 13, light can fully reflect in cavity 17.
Yet though above-mentioned existing side light type back light module solves the problem that light leaks with the light sources reflector plate, this each assembled configuration is too complicated, and causes the waste of material, still has many worth improvements.
Summary of the invention
In view of this, a purpose of the present invention is to provide a kind of side light type back light module, and it utilizes the material of simply constructing and simplifying, and suitable and structure complexity can guarantee that still the light of light sources is unlikely to leak simultaneously with the assembling hand of simplifying backlight module.
For reaching above-mentioned purpose, the present invention discloses a kind of side light type back light module, and it has a reflective back plane, a light guide plate and a light sources.But reflective back plane has one first of reflection ray and to a kink of first bending, and light guide plate setting and being attached on first of reflective back plane, the side of this light guide plate is connected in kink, and and kink between form an airtight cavity, light sources then is installed in the cavity.Wherein, first of reflective back plane can or be coated with the mode in a reflection horizon by die casting, make it have reflective character.
In addition, the present invention more discloses a kind of liquid crystal indicator, and it has a liquid crystal panel and aforesaid side light type back light module, and wherein first of the reflective back plane of side light type back light module towards liquid crystal panel.In addition, a housing can be set, coat this side light type back light module.
According to the present invention, but first face of reflective back plane is arranged to reflection ray, and the kink that utilizes reflective back plane coats the side of light guide plate, and form the cavity of ccontaining light sources, not only can reach the purpose of fully airtight and reflection ray, can simplify the suitable and structure complexity of assembling hand of backlight module simultaneously.
Description of drawings
Fig. 1 is the exploded view of existing side light type back light module 1;
Fig. 2 is for after having side light type back light module 1 assembling now, along the synoptic diagram of Figure 1A A ' cut-away section;
Fig. 3 is side light type back light module 2 exploded views of one embodiment of the invention;
After Fig. 4 is side light type back light module 2 assemblings of the present invention, along the synoptic diagram of BB ' cut-away section among Fig. 3.
Embodiment
See also Fig. 3, side light type back light module 2 of the present invention is described with an embodiment.The side light type back light module 2 of present embodiment is made up of framework 21, astigmatic device group 22, light guide plate 23, reflective back plane 25 and the light sources 26 that is arranged at both sides.The side light type back light module 2 of present embodiment is with the difference of existing side light type back light module 1 shown in Figure 1, existing side light type back light module 1 separates setting with reflector plate 14 with backboard 15, the side light type back light module 2 of present embodiment then integrates the function of reflector plate and backboard, exists with the form of a reflective back plane 25.As for other assembly, then identical with existing side light type back light module, for example light sources 26 which is provided with fluorescent tube 161 as light source, light sources reflector plate 162 and directly is connected with fluorescent tube 161 and in order to drive and the assemblies such as axle bush rubber cushion (bushing rubber) 163, connection line (cable) 164 and connector (connector) 165 of fixed lamp tube 161.
The side light type back light module 2 of present embodiment as shown in Figure 3, from bottom to top is assembled in light guide plate 23, astigmatic device group 22 and framework 21 on the reflective back plane 25 when assembling in regular turn.Insert in light guide plate 23 and the reflective back plane 25 formed cavitys 27 26 both sides that are assembled in backlight module 2 of light sources.
Please again referring to Fig. 4, be illustrated at the light reflection configuration of light sources 26 in the side light type back light module 2 of present embodiment.As shown in Figure 4, but reflective back plane 25 has one first S1 of reflection ray, and has a kink 253 to the direction bending of first S1 at the side of reflective back plane 25.But for making first S1 reflection ray, can make it have reflective character by first S1 die casting or be coated with the mode in a reflection horizon.Particularly, when making reflective back plane 25, can utilize a reflector plate 251 and sheet metal 252, make it form the reflective back plane material in modes such as die casting or pressure weldings as backboard, or on as the sheet metal 252 of backboard mode such as coating one deck reflectance coating 251 and form the reflective back plane material; Then, utilizing the drawing mode, can be the reflective back plane 25 with kink 253 with the reflective back plane forming materials.
Because first S1 of reflective back plane 25 has reflective character, so after light sends by fluorescent tube 261, can directly enter light guide plate 23, or enter light guide plate 23 after cavity 27 in, reflecting via kink 253 inner faces (i.e. first S1).
In addition, the side light type back light module 2 of present embodiment can be in order to making liquid crystal indicator, or other LCD; One liquid crystal panel for example is provided, and aforesaid side light type back light module 2 is arranged at a side of this liquid crystal panel, wherein first S1 of the reflective back plane 25 of side light type back light module 2 is towards liquid crystal panel.In addition, a housing can be set again, side light type back light module 2 is enveloped, with the protection liquid crystal indicator.
According to the present invention, utilize the side of the kink 253 coating light guide plate 23 of reflective back plane 25, and form a cavity 27 with ccontaining light sources, not only can reach the purpose of fully airtight and reflection ray, can save simultaneously the structure of light sources reflector plate in the existing side light type back light module, thereby simplify the suitable and structure complexity of assembling hand of side light type back light module 2.
In this mandatory declaration, characteristics of the present invention are to utilize the back veneer material with reflex to make reflective back plane 25, and utilize the kink 253 and light guide plate 23 mutual airtight combinations of reflective back plane 25, thereby form cavity 27.Therefore, the present invention does not limit the reflection characteristic of first S1 of reflective back plane 25 or the production method of kink 253, in other words, no matter adopt above-mentioned reflector plate injection moulding mode, or adopt surface coated that the back veneer material of reflective coating is arranged, carry out the mode of drawing, even the back veneer material that use itself promptly has reflection ray effect and a bending shape makes reflective back plane 25, be feasible mode.
Though disclose as above in conjunction with above concrete preferred embodiment; yet it is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; still can do some and change and retouching, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (7)
1. side light type back light module comprises:
One reflective back plane, but have one first of reflection ray and be formed with a kink to this first bending, and the back veneer material that this reflective back plane utilization has reflex is made;
One light guide plate is provided with and is attached at this first of this reflective back plane, and the side of this light guide plate is connected in this kink, and and this kink between form an airtight cavity; And
One light sources is arranged in this cavity.
2. side light type back light module as claimed in claim 1, wherein first die casting of this of this reflective back plane has a reflection horizon.
3. side light type back light module as claimed in claim 1, wherein this of this reflective back plane first face is coated with a reflection horizon.
4. liquid crystal indicator comprises:
One liquid crystal panel; And
One side light type back light module is arranged at a side of this liquid crystal panel, and this backlight module comprises:
One reflective back plane, but have one first of reflection ray and be formed with a kink to this first bending, the back veneer material that this reflective back plane utilization has reflex is made, and wherein this first towards this liquid crystal panel;
One light guide plate is provided with and is attached at this first of this reflective back plane, and the side of this light guide plate is connected in this kink, and and this kink between form an airtight cavity; And
One light sources is arranged in this cavity.
5. liquid crystal indicator as claimed in claim 4 more comprises a housing, is arranged at a side of this liquid crystal panel, coats this side light type back light module.
6. liquid crystal indicator as claimed in claim 4, wherein first die casting of this of this reflective back plane has a reflection horizon.
7. liquid crystal indicator as claimed in claim 4, wherein this of this reflective back plane first face is coated with a reflection horizon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100015037A CN100507664C (en) | 2004-01-09 | 2004-01-09 | Sidelight type aphototropism module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100015037A CN100507664C (en) | 2004-01-09 | 2004-01-09 | Sidelight type aphototropism module and liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1556433A CN1556433A (en) | 2004-12-22 |
| CN100507664C true CN100507664C (en) | 2009-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100015037A Expired - Lifetime CN100507664C (en) | 2004-01-09 | 2004-01-09 | Sidelight type aphototropism module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100507664C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454099C (en) * | 2005-05-28 | 2009-01-21 | 鸿富锦精密工业（深圳）有限公司 | Backlight unit set and its assembling method |
| CN100376983C (en) * | 2005-12-23 | 2008-03-26 | 友达光电股份有限公司 | Light source component and backlight module using same |
| RU2422865C2 (en) | 2007-01-23 | 2011-06-27 | Шарп Кабушики Каиша | Illumination device, backlighting device and display |
| CN101988659B (en) * | 2009-08-04 | 2013-06-12 | 纬创资通股份有限公司 | Side light type backlight module |
| CN102086993B (en) * | 2009-12-04 | 2013-05-29 | 群康科技(深圳)有限公司 | Backlight module and liquid crystal display device using same |
| CN101806977A (en) * | 2010-03-10 | 2010-08-18 | 北京巨数数字技术开发有限公司 | LED backlight module used for liquid crystal display |
| TWI406058B (en) | 2010-12-20 | 2013-08-21 | Au Optronics Corp | Backlight module |
| CN103018935B (en) | 2012-12-12 | 2015-07-15 | 京东方科技集团股份有限公司 | Frame assembly and liquid crystal display device |
| CN105116606A (en) * | 2015-06-26 | 2015-12-02 | 武汉华星光电技术有限公司 | Reflection sheet, backlight module and display device |
| CN207049680U (en) * | 2017-08-21 | 2018-02-27 | 广州视源电子科技股份有限公司 | Down straight aphototropism mode set and display |
| US11670900B2 (en) | 2019-02-05 | 2023-06-06 | Emergency Technology, Inc. | Universal smart adaptor |
| CN109976005A (en) * | 2019-04-04 | 2019-07-05 | 深圳康佳电子科技有限公司 | A kind of manufacturing backlight module method, backlight module and liquid crystal display device |
-
2004
- 2004-01-09 CN CNB2004100015037A patent/CN100507664C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1556433A (en) | 2004-12-22 |
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