CN202432357U - Light-guide-plate-free side inlet type back light module and liquid display device - Google Patents
Light-guide-plate-free side inlet type back light module and liquid display device Download PDFInfo
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- CN202432357U CN202432357U CN2011205434850U CN201120543485U CN202432357U CN 202432357 U CN202432357 U CN 202432357U CN 2011205434850 U CN2011205434850 U CN 2011205434850U CN 201120543485 U CN201120543485 U CN 201120543485U CN 202432357 U CN202432357 U CN 202432357U
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Abstract
The utility model discloses a light-guide-plate-free side inlet type back light module and a liquid display device, wherein the light-guide-plate-free side inlet type back light module comprises a back plate, at least one light emitting diode (LED) light source, an emitting sheet and a diffusion plate, the LED light source is arranged at one side of the back plate, the reflecting sheet is arranged above the LED light source, the diffusion plate is matched with the back plate, and a W-shaped arc-shaped reflecting groove is arranged on the back plate. The light-guide-plate-free side inlet type back light module and the liquid display device of the back light module have the advantages that the reflecting sheet is arranged above the LED light source, in addition, the W-shaped reflecting groove is arranged in the back plate, the reflection and scattering effects of the arc-shaped reflecting groove are utilized, the propagating direction of light rays in the back plate is changed, and a surface light source with the uniformly distributed light rays is formed, so the display effect is improved, in addition, the cost is also reduced, the phenomena of heat generation and over high assembly rejection rate of the back light module caused by printing instability of a light guide plate are reduced, and the practicability is high.
Description
Technical field
The utility model relates to module backlight field, relates in particular to a kind of side entrance back module and liquid crystal indicator that does not have LGP.
Background technology
Module backlight is one of key part and component of panel of LCD, and function is well-off brightness and the light source that is evenly distributed, and makes its normally show image.Module backlight mainly divides two kinds of preceding light formula (Front light) and backlight types (Back light).And backlight type can be according to the requirement of its scale; Position difference with led light source is divided into three types: side-light type structure, full run-down type structure and hollow type structure, and wherein, the side-light type structure is also claimed the side entering type structure; Its led light source is arranged at side, generally is usually used in the module backlight of small-medium size; It adopts the light source design of side incident; Have characteristics such as light weight, slim, narrow frameization and power consumption be low; The light source that is particularly useful for mobile phone, personal digital assistant (PDA) and notebook computer, the module backlight of side entering type structure also can be applicable to large-sized LCD at present.
Traditional LC D side entering type light inlet liquid crystal module all adopts the scheme that LGP is set at present, and after soon LED LightBar line source incided LGP, site reflection and scattering process through LGP made light penetrate along the light face, finally form area source.But light can be decayed through its energy behind the LGP, needs the more LED of encapsulation just can reach needed brightness; Simultaneously, it is high that LGP typography instability has caused the fraction defective of product; In addition, the sheet material of LGP also faces the risk that there is lack of raw materials, causes the cost of LGP also increasingly high.
Therefore, prior art awaits to improve and development.
The utility model content
In view of the deficiency of above-mentioned prior art, the purpose of the utility model is to provide a kind of side entrance back module that does not have LGP, is intended to solve problems such as existing side entrance back module cost height, assembly failure rate height and generation heat height.
The technical scheme of the utility model is following:
A kind of side entrance back module that does not have LGP; Wherein, The side entrance back module of said no LGP comprises a backboard, at least one led light source that is arranged at backboard one side, be arranged at the reflector plate and one and the adaptive diffuser plate of said backboard of this led light source top, and said backboard is provided with the arc reflection groove of a W type.
The side entrance back module of described no LGP, wherein, said led light source is two, and is arranged at the both sides of backboard respectively.
The side entrance back module of described no LGP, wherein, said reflector plate is arranged at the backboard sidewall, and parallel with diffuser plate.
The side entrance back module of described no LGP, wherein, the lower surface of said reflector plate is provided with the silver coating that is used for reflection ray.
The side entrance back module of described no LGP, wherein, the inner surface both sides of the arc reflection groove of said W type are pasted with second reflector plate.
The side entrance back module of described no LGP, wherein, the upper surface of said second reflector plate is provided with second silver coating that is used for reflection ray.
The side entrance back module of described no LGP, wherein, the inner surface of the arc reflection groove of said W type is coated with the reflection white paint layer of one deck high reflectance.
A kind of liquid crystal indicator; Comprise liquid crystal display, be used for fixing the preceding frame of the aluminium extruded of led light source and the center that is used to encapsulate and iron; Wherein, Said liquid crystal indicator also comprises the side entrance back module of no LGP, and said side entrance back module comprises a backboard, at least one led light source that is arranged at backboard one side, be arranged at the reflector plate and one and the adaptive diffuser plate of said backboard of this led light source top, and said backboard is provided with the arc reflection groove of a W type.
Beneficial effect: the utility model does not have the module backlight and the liquid crystal indicator thereof of LGP; Owing to will above led light source, be provided with a reflector plate, and the arc reflection groove of a W type will be set in backboard, utilize the reflection and the scattering process of the W type reflection groove of this arcuate structure; Change the direction of propagation of light in backboard; Form the distribution of light uniform surface light source, thereby improved display effect, and reduced cost; Reduced the generation of heat and because the too high phenomenon of module assembly failure rate backlight brought of LGP printing instability is practical.
Description of drawings
Fig. 1 is the structural representation of the utility model module backlight.
Fig. 2 is the local structure for amplifying sketch map of A part among Fig. 1.
Fig. 3 is the structural representation of the utility model liquid crystal mesogens display unit.
The specific embodiment
The utility model provides a kind of side entrance back module that does not have LGP, for purpose, technical scheme and the effect that makes the utility model is clearer, clear and definite, below to the utility model further explain.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model does not have the embodiment of the side entrance back module of LGP; As shown in Figure 1; Comprise a backboard 100, at least one led light source 110 that is arranged at backboard 100 1 sides, be arranged at the reflector plate 130 and one and the adaptive diffuser plate 160 of said backboard 100 of these led light source 110 tops, said backboard 100 is provided with the arc reflection groove 120 of a W type.
Specifically; The arc reflection groove 120 of said W type is arranged at backboard 100 tops, and is as shown in Figure 2, and these backboard 100 tops are provided with diffuser plate 160; Led light source 110 can be fixed on the aluminium extruded; And form the space of a sealing with diffuser plate 160 and backboard 100, in this space, be provided with at least one led light source 110, and above this led light source 110, be provided with one be used for reflection ray reflector plate 130; This backboard 100 is provided with the arc reflection groove 120 of a W type; The arc reflection groove 120 of this W type is used for the light that led light source 110 sends and reflector plate 130 reflects is reflexed to diffuser plate 160, and said led light source 110 is arranged at a side of backboard 100, can pass through aluminium extruded fixed L ED light source 110.Through the structural test of various reflection grooves being found that reflection groove is set to the arcuate structure of W type, can make the distribution of light that reflexes to diffuser plate 160 more even in the lighttools optical simulation software; As shown in Figure 1, light is incident to the arc reflection groove 120 of W type, after reflection and scattering process; Its light can both reflex to diffuser plate 160, and its distribution of light is even, and light forms area source after through diffuser plate; Thereby improved the display effect of liquid crystal indicator, and because LGP is not set, the energy of light can not decayed; Thereby it can keep the requirement of high brightness; Do not need to be provided with in addition LGP and the quantity that increases the LED encapsulation, greatly reduce cost, also reduced the generation of heat.
The utility model does not have the embodiment of the side entrance back module of LGP; As shown in Figure 1; Said led light source 110 is traditionally arranged to be two; And two led light sources 110 are arranged at the both sides of backboard 100, more even to guarantee from the distribution of light of diffuser plate 160 outgoing, Yi Bian situation bright excessively, that another side is dark excessively can not occur.Correspondingly; Above said two led light sources 110, be provided with reflector plate 130, can both be reflected onto the arc reflection groove 120 of W type with the led light source 110 that guarantees two places, this reflector plate 130 preferably is separately positioned on the two side of backboard 100; And this reflector plate 130 all laterally arranges with diffuser plate 160; So, can prevent that light that led light source 110 sends from directly into being incident upon diffuser plate 160, destroying the whole image evenness of liquid crystal indicator and form bright striped at correspondence position.
The utility model does not have the embodiment of the side entrance back module of LGP; As shown in Figure 2, the lower surface of said reflector plate 130 is provided with silver coating, promptly is provided with silver coating at reflector plate 130 towards the surface of light source; Being used for will can both be through the reflex of reflector plate from the light of led light source 110 outgoing; Reflex to the arc reflection groove 120 of W type, to improve reflectivity, especially for the light of led light source 110 wide-angle outgoing; Also can be provided with reflector plate 130 reflections of silver coating, thereby further have been guaranteed from the uniformity of the light of diffuser plate 160 outgoing.
The utility model does not have the side entrance back module of LGP; As shown in Figure 2, the both sides of the inner surface of the arc reflection groove 120 of said W type attach one deck second reflector plate 140, and this second reflector plate 140 can improve the reflectivity of light at the arc reflection groove 120 of W type; Can also change the direction of propagation of light; Thereby improve the uniformity of emergent ray, also second silver coating that one deck is used for reflection ray can be set on this second reflector plate 140 in addition, to improve reflectivity.Also can be chosen in the reflection white paint layer that plates one deck high reflectance in the arc reflection groove 120 of this W type in addition; This reflection white paint can be the reflecting material that comprises the resinae of stabilization agent or reflective coating; Coat this reflection white paint layer; Can further strengthen light reflectance, reduce the loss of light ray energy, guarantee the display brightness of liquid crystal indicator.
The utility model does not have the embodiment of the liquid crystal indicator of LGP; In conjunction with Fig. 1 and shown in Figure 3; Comprise liquid crystal display 220, be used for fixing the preceding frame 230 of the aluminium extruded 240 of led light source 110 and the center 210 that is used to encapsulate and iron; The side entrance back module 200 that also comprises no LGP; Said side entrance back module comprises a backboard 100, at least one led light source 110 that is arranged at backboard 100 1 sides, is arranged at the reflector plate 130 and one and the adaptive diffuser plate 160 of said backboard 100 of these led light source 110 tops, is provided with the arc reflection groove 120 of a W type in the said backboard 100.Also be provided with liquid crystal display 220 before the said diffuser plate, said led light source 110 is fixedly installed on the aluminium extruded 240, and aluminium extruded 240 is arranged at the both sides of backboard 100, and the liquid crystal indicator of this no LGP is also with 230 encapsulation of frame before center 210 and the iron.
The utility model does not have the module backlight and the liquid crystal indicator thereof of LGP; Owing to will above led light source, be provided with a reflector plate, and the arc reflection groove of a W type will be set in backboard, utilize the reflection and the scattering process of the W type reflection groove of this arcuate structure; Change the direction of propagation of light in backboard; Form the distribution of light uniform surface light source, thereby improved display effect, and reduced cost; Reduced the generation of heat and because the too high phenomenon of module assembly failure rate backlight brought of LGP printing instability is practical.
Should be understood that; The application of the utility model is not limited to above-mentioned giving an example; Concerning those of ordinary skills, can improve or conversion according to above-mentioned explanation, all these improvement and conversion all should belong to the protection domain of the utility model accompanying claims.
Claims (8)
1. side entrance back module that does not have LGP; It is characterized in that; The side entrance back module of said no LGP comprises a backboard, at least one led light source that is arranged at backboard one side, be arranged at the reflector plate and one and the adaptive diffuser plate of said backboard of this led light source top, and said backboard is provided with the arc reflection groove of a W type.
2. the side entrance back module of no LGP according to claim 1 is characterized in that, said led light source is two, and is arranged at the both sides of backboard respectively.
3. the side entrance back module of no LGP according to claim 1 is characterized in that, said reflector plate is arranged at the backboard sidewall, and parallel with diffuser plate.
4. the side entrance back module of no LGP according to claim 1 is characterized in that, the lower surface of said reflector plate is provided with the silver coating that is used for reflection ray.
5. the side entrance back module of no LGP according to claim 1 is characterized in that, the inner surface both sides of the arc reflection groove of said W type are pasted with second reflector plate.
6. the side entrance back module of no LGP according to claim 5 is characterized in that, the upper surface of said second reflector plate is provided with second silver coating that is used for reflection ray.
7. the side entrance back module of no LGP according to claim 1 is characterized in that, the inner surface of the arc reflection groove of said W type is coated with the reflection white paint layer of one deck high reflectance.
8. liquid crystal indicator; Comprise liquid crystal display, be used for fixing the preceding frame of the aluminium extruded of led light source and the center that is used to encapsulate and iron; It is characterized in that; Said liquid crystal indicator also comprises the side entrance back module of no LGP, and said side entrance back module comprises a backboard, at least one led light source that is arranged at backboard one side, be arranged at the reflector plate and one and the adaptive diffuser plate of said backboard of this led light source top, and said backboard is provided with the arc reflection groove of a W type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205434850U CN202432357U (en) | 2011-12-22 | 2011-12-22 | Light-guide-plate-free side inlet type back light module and liquid display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205434850U CN202432357U (en) | 2011-12-22 | 2011-12-22 | Light-guide-plate-free side inlet type back light module and liquid display device |
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| Publication Number | Publication Date |
|---|---|
| CN202432357U true CN202432357U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205434850U Expired - Fee Related CN202432357U (en) | 2011-12-22 | 2011-12-22 | Light-guide-plate-free side inlet type back light module and liquid display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202432357U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980098A (en) * | 2012-11-22 | 2013-03-20 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN102997096A (en) * | 2012-11-19 | 2013-03-27 | 无锡莱吉特信息科技有限公司 | Lateral light inlet surface light source free of light guide plate |
| CN103912822A (en) * | 2013-01-08 | 2014-07-09 | 东贝光电科技股份有限公司 | Side light type backlight module |
| WO2015070530A1 (en) * | 2013-11-15 | 2015-05-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| WO2016155042A1 (en) * | 2015-04-01 | 2016-10-06 | 深圳市华星光电技术有限公司 | Liquid crystal display apparatus and backlight module thereof |
| CN106641887A (en) * | 2017-01-06 | 2017-05-10 | 中山市领航光电科技有限公司 | Panel light of cambered surface reflection and light guide structure |
| CN106895306A (en) * | 2017-02-22 | 2017-06-27 | 横店集团得邦照明股份有限公司 | A kind of side entering type is without light guide plate LED flat lamp |
| CN109031792A (en) * | 2018-10-11 | 2018-12-18 | 合肥惠科金扬科技有限公司 | Backlight module and display device |
-
2011
- 2011-12-22 CN CN2011205434850U patent/CN202432357U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997096A (en) * | 2012-11-19 | 2013-03-27 | 无锡莱吉特信息科技有限公司 | Lateral light inlet surface light source free of light guide plate |
| CN102980098A (en) * | 2012-11-22 | 2013-03-20 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN103912822A (en) * | 2013-01-08 | 2014-07-09 | 东贝光电科技股份有限公司 | Side light type backlight module |
| WO2015070530A1 (en) * | 2013-11-15 | 2015-05-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| US9285616B2 (en) | 2013-11-15 | 2016-03-15 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and liquid crystal display device using same |
| WO2016155042A1 (en) * | 2015-04-01 | 2016-10-06 | 深圳市华星光电技术有限公司 | Liquid crystal display apparatus and backlight module thereof |
| US10012867B2 (en) | 2015-04-01 | 2018-07-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal devices (LCDS) and the backlight modules thereof |
| CN106641887A (en) * | 2017-01-06 | 2017-05-10 | 中山市领航光电科技有限公司 | Panel light of cambered surface reflection and light guide structure |
| CN106895306A (en) * | 2017-02-22 | 2017-06-27 | 横店集团得邦照明股份有限公司 | A kind of side entering type is without light guide plate LED flat lamp |
| CN109031792A (en) * | 2018-10-11 | 2018-12-18 | 合肥惠科金扬科技有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120912 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |