CN204127782U - Side reflector plate, backlight module and liquid crystal display - Google Patents
Side reflector plate, backlight module and liquid crystal display Download PDFInfo
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- CN204127782U CN204127782U CN201420550371.2U CN201420550371U CN204127782U CN 204127782 U CN204127782 U CN 204127782U CN 201420550371 U CN201420550371 U CN 201420550371U CN 204127782 U CN204127782 U CN 204127782U
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- reflector plate
- side reflector
- site
- backlight module
- light guide
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Abstract
The utility model discloses a kind of backlight module, described backlight module comprises light guide plate, is arranged at the light source of light guide plate side and side reflector plate, described light guide plate comprises exiting surface and the multiple end faces adjacent with exiting surface, at least one end face of described multiple end face is pasted with described side reflector plate, the reflective surface of described side reflector plate is provided with the low light level structure for reducing reflectivity, and described low light level structure comprises the multiple sites formed by extinction ink printing.The invention also discloses and a kind ofly adopt the liquid crystal display of above-mentioned backlight module and apply to the side reflector plate of above-mentioned backlight module.Backlight module provided by the utility model has the effect improving optical quality.
Description
Technical field
The utility model relates to field of liquid crystal display, particularly relates to side reflector plate, backlight module and liquid crystal display.
Background technology
Along with the high speed development of modern society's science and technology, market comsupton colony is more and more higher to product design aesthetic, and user is more prone to the LCD TV buying ultra-narrow frame.But also there is the problem of outgoing light homogeneity difference in the LCD TV of ultra-narrow frame.Concrete, by carrying out the compensation to light energy at the end face stickup side reflector plate of light guide plate (light guide plate) in backlight module.But because the light reflectivity of side reflector plate is comparatively strong, and the frame of the LCD TV of ultra-narrow frame is narrow and can not do and cover process, cause being easy in the position being provided with side reflector plate occurring bright dark excessively uneven or occur the optical quality problems of bright line.
Utility model content
Main purpose of the present utility model is the optical quality problems solving backlight module bright dark excessively inequality or bright line in the position of side reflector plate.
For achieving the above object, the utility model provides a kind of backlight module, described backlight module comprises light guide plate, is arranged at the light source of light guide plate side and side reflector plate, described light guide plate comprises exiting surface and the multiple end faces adjacent with exiting surface, at least one end face of described multiple end face is pasted with described side reflector plate, the reflective surface of described side reflector plate is provided with the low light level structure for reducing reflectivity, and described low light level structure comprises the multiple sites formed by extinction ink printing.
Preferably, the quantity of the end face of described light guide plate is four; One end face of the corresponding described light guide plate of described light source is arranged, and the quantity of described side reflector plate is three, and three side reflector plates are pasted on other three end faces of described light guide plate respectively.
Preferably, described three side reflector plates are respectively first side reflector plate, second side reflector plate and the 3rd side reflector plate; Described first side reflector plate is pasted on an end face relative with described light source, and the site on the reflector plate of described first side is evenly arranged and the area equation of each site; Described second side reflector plate and the 3rd side reflector plate are pasted on other both ends of the surface, and the site on described second side reflector plate and the 3rd side reflector plate is evenly arranged; On from described light source to the direction of described first side reflector plate, the area of the single site on described second side reflector plate and the 3rd side reflector plate reduces gradually.
Preferably, the site on described side reflector plate is evenly distributed, and the distance of single site and described light source entirety then area far away is less.
Preferably, the area of the single site on described side reflector plate is identical, and region far away with described light source overall distance on described side reflector plate, on this region, the arranging density of site is less.
In addition, in order to achieve the above object, the utility model additionally provides a kind of liquid crystal display, the display panels that described liquid crystal display comprises above-mentioned backlight module and is disposed adjacent with backlight module.
In addition, in order to achieve the above object, the utility model additionally provides a kind of side reflector plate, light for the end face by directive light guide plate is reflected back light guide plate, luminous intensity is gone out with what strengthen the exiting surface of light guide plate, the reflective surface of described side reflector plate is provided with the low light level structure for reducing reflectivity, and described low light level structure comprises the site be located on described reflective surface, and described site is the ink of the extinction be printed on described reflective surface.
Preferably, described site is evenly distributed in reflective surface; The area equation of each site, or from described reflective surface to the direction of relative another side, the area of site reduces gradually.
Preferably, the area equation of each described site, from described reflective surface to the direction of relative another side, the density that described site arranges on reflective surface reduces gradually
Backlight module provided by the utility model, pastes the reflector plate with low light level structure by the end face at light guide plate, thus reaches the effect improving optical quality.Particularly, when illumination is incident upon the non-dot area of reflector plate, then form reflected light back and return light guide plate.This reverberation finally penetrates from the exiting surface of light guide plate, namely reaches the effect improving the brightness of light guide plate by arranging reflector plate.Illumination is incident upon on the site of reflector plate, then this light can not will be reflected by absorbing, and namely reaches the reflecting rate changing reflector plate, thus reaches the effect improving optical quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model side reflector plate one embodiment;
Fig. 2 is the structural representation of the utility model backlight module one embodiment;
The exploded perspective view that Fig. 3 is the first side reflector plate shown in Fig. 2 and light guide plate;
Fig. 4 is the structural representation of second side reflector plate in Fig. 2;
Fig. 5 is the fundamental diagram of backlight module illustrated in fig. 2.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
For achieving the above object, the utility model provides a kind of side reflector plate 1, and the light for the end face by directive light guide plate is reflected back light guide plate, goes out luminous intensity with what strengthen the exiting surface of light guide plate.Please refer to Fig. 1, in one embodiment, this side reflector plate 1 comprises the reflective surface 11 for the end face towards light guide plate, and described reflective surface 11 is provided with the low light level structure for reducing reflectivity.
In the present embodiment, described low light level structure comprises the site 12 be located on described reflective surface 11.The region that reflective surface 11 is provided with site 12 will not reverberation or few reflective, thus reaches the effect reducing reflectivity.Particularly, described site 12 is for being printed in the ink of the extinction on described reflective surface 11.In the present embodiment, described site 12 is circular; In other embodiments, also can be other shapes, such as rectangle, rhombus or regular polygon etc.
In other embodiments, low light level structure can also comprise the coating with low light level effect, is reached the effect reducing reflecting rate by coating.Or low light level structure can also comprise is located at groove on reflective surface 11 or projection, is reached the effect reducing reflectivity by the roughness improving reflective surface 11.
In order to the technical characteristic that can set forth above-mentioned side reflector plate 1 better and the technique effect that can produce, be hereinafter described in detail to the backlight module that have employed above-mentioned side reflector plate 1.
To achieve these goals, the utility model additionally provides a kind of backlight module, please refer to Fig. 2, and in one embodiment, this backlight module comprises light guide plate 3, side reflector plate and light source 5.
Light guide plate 3 comprises exiting surface 31, the end face 32 adjacent with exiting surface 31, end face 33, end face 34 and end face 35, and wherein, end face 32 is relative with end face 34 and parallel, and end face 33 is relative with end face 35 and parallel.
The end face 35 of the corresponding light guide plate 3 of light source 5 is arranged, and the light that light source 5 sends enters in light guide plate 3 from the end face 35 of light guide plate 3.
The quantity of side reflector plate is three, is respectively first side reflector plate 1a, second side reflector plate 1b and the 3rd side reflector plate 1c.
Incorporated by reference to referring to Fig. 3, the side reflector plate 1 wherein in first side reflector plate 1a and Fig. 1 is identical.This side reflector plate 1a comprises the reflective surface 11a for the end face 33 towards light guide plate 3, and described reflective surface 11a is provided with the site 12a for reducing reflectivity.The region that reflective surface 11 is provided with site 12a will not reverberation or few reflective, thus reaches the effect reducing reflectivity.Particularly, described site 12a is the ink of the extinction be printed on described reflective surface 11a.In the present embodiment, Uniform Rotundity sized by described site 12a is also arranged on reflective surface 11a uniformly.First side reflector plate 1a is pasted on the end face 33 of light guide plate 3 by transparent colloid 2.
Second side reflector plate 1b is pasted on the end face 32 of light guide plate 3 by transparent colloid 2, and the 3rd side reflector plate 1c is pasted on the end face 34 of light guide plate 3 by transparent colloid 2.Incorporated by reference to the structural representation showing side reflector plate 1b (1b and 1c is identical) referring to Fig. 4, Fig. 4.The site of the site 12b on described second side reflector plate 1b is evenly arranged, and on from described light source 5 to the direction 51 of described first side reflector plate 1a, the area of single site 12b reduces gradually.3rd side reflector plate 1c is identical with second side reflector plate 1b structure, does not repeat them here.The backlight quality that the backlight module that the present embodiment provides produces is better.Make a concrete analysis of as follows:
Please again combine referring to Fig. 2 and Fig. 3, in the present embodiment, light source 5 is LED lamp bar, comprises multiple spaced LED52.The light 41 sent by LED52 exposes to the non-dot area of side reflector plate 1a through light guide plate 3 and transparent colloid 2, then form reverberation 41 ' and be reflected back light guide plate 3.This reverberation 41 ' finally penetrates from the exiting surface 31 of light guide plate 3, namely reaches the effect improving the brightness of light guide plate 3 by arranging reflector plate 1.The light 42 sent by LED52 exposes on the site 12 of reflector plate 1 through transparent colloid 2, then this light 41 can not will be reflected by absorbing, and namely reaches the effect of the reflecting rate changing reflector plate 1.When the illumination sent by LED52, to be incident upon side reflector plate 1a identical with the situation exposing to side reflector plate 1a with situation during side reflector plate 1b, do not repeat them here.
Please refer to Fig. 5, Fig. 5 is the fundamental diagram of backlight module illustrated in fig. 3.The light that LED52 penetrates to the end face 35 of light guide plate represents with light.
First side reflector plate 1a is positioned at the dead ahead of light source 5, and the distance that the light that light source 5 sends arrives first side reflector plate 1a is all equal, then the intensity arriving the light of first side reflector plate 1a is identical.Therefore the site on first side reflector plate 1a is evenly arranged and the area equation of each site, can improve the outgoing light homogeneity being positioned at reflector plate 1a place, first side, thus reaches the effect of the optical quality improving on reflector plate 1a place, first side.
Second side reflector plate 1b and the 3rd side reflector plate 1c is positioned at the side of light source 5, then the light that sends of light source 5 arrives the distance of second side reflector plate 1b and the 3rd side reflector plate 1c is do not wait, thus causes arrival second side reflector plate 1b not identical with the intensity of the light of the 3rd side reflector plate 1c diverse location.
Illustrated in Fig. 5 that light arrives the situation of second side reflector plate 1b, particularly, the light that light source 5 sends forms reflection ray after the reflection of second side reflector plate 1b, and the length of reflection ray represents luminous energy, and the longer then luminous energy of length is stronger.As seen from the figure, because described light is propagated loss of energy in light guide plate 3, then on the direction 51 of end face 35 to end face 33, the length of reflection ray is shorter and shorter, and namely the luminous energy of reverberation is more and more weak.In the present embodiment, on direction 51, because the area of the single site 12b of second side reflector plate 1b is reducing gradually, the light that second side reflector plate 1b is absorbed on direction 51 is also fewer and feweri, and then the number of reverberation that second side reflector plate 1b is formed on direction 51 increases gradually.Then scrutable is on direction 51, although the luminous energy of wall scroll reverberation is more and more weak, but the number of reverberation formed also gets more and more, then the light intensity of reverberation that formed on each position of second side reflector plate 1b is comparatively balanced, reaches the effect improving optical quality.The optical quality improvement situation of the 3rd side reflector plate 1c is identical with second side reflector plate 1b, does not repeat them here.
In sum, the backlight module that the present embodiment provides is comparatively even in the light intensity of the position institute reverberation of second side reflector plate 1b and the 3rd side reflector plate 1c, therefore has the effect improved and be positioned at the optical quality at second side reflector plate 1b and the 3rd side reflector plate 1c place.
In other embodiments, can also be: the area of the single site on described side reflector plate is identical, but region far away with described light source overall distance on described side reflector plate, on this region, the arranging density of site is less.Namely the arrangement density by changing site changes the reflected intensity of light, to reach the effect of the optical quality improving backlight module.Such as from the distance light source of described reflective surface nearer while to the direction of relative another side, the density that described site arranges on reflective surface reduces gradually.
Backlight module in the present embodiment, has good outgoing light homogeneity, has the advantage being easy to processing and manufacturing simultaneously.Particularly, relative to other scheme, such as adopt and reduce the width of side reflector plate and the sticking position of the side reflector plate that is shifted, carry out overcoming optical quality problems mentioned in background technology, the thickness of such as light guide plate is 3mm, the width of side reflector plate is reduced into 1.3mm from 2.8mm, then side reflector plate hides the end face of light guide plate in predeterminated position local, and reaches the effect improving optical quality.The end face of the full bag light guide plate 3 substantially of the side reflector plate 1 in the present embodiment.Therefore, on the one hand, time on end face side reflector plate 1 being affixed to light guide plate 3, very strict operation is not needed side reflector plate 1 to be pasted on the predeterminated position of light guide plate 3 end face, thus the speed of stickup can be accelerated, can also avoid because paste position skew causes the phenomenon of optical quality difference to occur; On the other hand, the area pasted due to side reflector plate 1 and light guide plate 3 is comparatively large, then this stickup is more firm, avoids coming off in the experiment of letter patience.
In addition the utility model additionally provides a kind of liquid crystal display, the display panels that this liquid crystal display comprises above-mentioned backlight module disclosed in the utility model and is disposed adjacent with backlight module, the structure of this backlight module can refer to above-described embodiment, does not repeat them here.Naturally, the liquid crystal display due to the present embodiment have employed the technical scheme of above-mentioned backlight module, and therefore this liquid crystal display has all beneficial effects of above-mentioned backlight module.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. a backlight module, it is characterized in that, described backlight module comprises light guide plate, is arranged at the light source of light guide plate side and side reflector plate, described light guide plate comprises exiting surface and the multiple end faces adjacent with exiting surface, at least one end face of described multiple end face is pasted with described side reflector plate, the reflective surface of described side reflector plate is provided with the low light level structure for reducing reflectivity, and described low light level structure comprises the multiple sites formed by extinction ink printing.
2. backlight module as claimed in claim 1, it is characterized in that, the quantity of the end face of described light guide plate is four; One end face of the corresponding described light guide plate of described light source is arranged, and the quantity of described side reflector plate is three, and three side reflector plates are pasted on other three end faces of described light guide plate respectively.
3. backlight module as claimed in claim 2, it is characterized in that, described three side reflector plates are respectively first side reflector plate, second side reflector plate and the 3rd side reflector plate; Described first side reflector plate is pasted on an end face relative with described light source, and the site on the reflector plate of described first side is evenly arranged and the area equation of each site; Described second side reflector plate and the 3rd side reflector plate are pasted on other both ends of the surface, and the site on described second side reflector plate and the 3rd side reflector plate is evenly arranged; On from described light source to the direction of described first side reflector plate, the area of the single site on described second side reflector plate and the 3rd side reflector plate reduces gradually.
4. backlight module as claimed in claim 1, it is characterized in that, the site on described side reflector plate is evenly distributed, and the distance of single site and described light source entirety then area far away is less.
5. backlight module as claimed in claim 1, it is characterized in that, the area of the single site on described side reflector plate is identical, and region far away with described light source overall distance on described side reflector plate, on this region, the arranging density of site is less.
6. a liquid crystal display, is characterized in that, the display panels that described liquid crystal display comprises the backlight module described in any one of claim 1 to 5 and is disposed adjacent with backlight module.
7. a side reflector plate, light for the end face by directive light guide plate is reflected back light guide plate, luminous intensity is gone out with what strengthen the exiting surface of light guide plate, it is characterized in that, the reflective surface of described side reflector plate is provided with the low light level structure for reducing reflectivity, described low light level structure comprises the site be located on described reflective surface, and described site is the ink of the extinction be printed on described reflective surface.
8. side reflector plate as claimed in claim 7, it is characterized in that, described site is evenly distributed in reflective surface; The area equation of each site, or from described reflective surface to the direction of relative another side, the area of site reduces gradually.
9. side reflector plate as claimed in claim 7, is characterized in that, the area equation of each described site, from described reflective surface to the direction of relative another side, the density that described site arranges on reflective surface reduces gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420550371.2U CN204127782U (en) | 2014-09-23 | 2014-09-23 | Side reflector plate, backlight module and liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420550371.2U CN204127782U (en) | 2014-09-23 | 2014-09-23 | Side reflector plate, backlight module and liquid crystal display |
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| CN204127782U true CN204127782U (en) | 2015-01-28 |
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| CN201420550371.2U Active CN204127782U (en) | 2014-09-23 | 2014-09-23 | Side reflector plate, backlight module and liquid crystal display |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700241A (en) * | 2016-04-28 | 2016-06-22 | 京东方科技集团股份有限公司 | Backlight module, LCD panel and display device |
| CN106896444A (en) * | 2017-03-30 | 2017-06-27 | 北京小米移动软件有限公司 | Backlight display module BLU, LCM and electronic equipment |
| CN109532065A (en) * | 2018-11-30 | 2019-03-29 | 合肥泰沃达智能装备有限公司 | A kind of manufacturing method of half-reflection and half-transmission light guide plate |
| TWI701464B (en) * | 2019-09-06 | 2020-08-11 | 友達光電股份有限公司 | Backlight module |
-
2014
- 2014-09-23 CN CN201420550371.2U patent/CN204127782U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700241A (en) * | 2016-04-28 | 2016-06-22 | 京东方科技集团股份有限公司 | Backlight module, LCD panel and display device |
| CN106896444A (en) * | 2017-03-30 | 2017-06-27 | 北京小米移动软件有限公司 | Backlight display module BLU, LCM and electronic equipment |
| CN106896444B (en) * | 2017-03-30 | 2020-07-21 | 北京小米移动软件有限公司 | Backlight display module B L U, L CM and electronic equipment |
| CN109532065A (en) * | 2018-11-30 | 2019-03-29 | 合肥泰沃达智能装备有限公司 | A kind of manufacturing method of half-reflection and half-transmission light guide plate |
| CN109532065B (en) * | 2018-11-30 | 2021-02-19 | 合肥泰沃达智能装备有限公司 | Manufacturing method of semi-reflective and semi-transparent light guide plate |
| TWI701464B (en) * | 2019-09-06 | 2020-08-11 | 友達光電股份有限公司 | Backlight module |
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