CN103542332A - Cellphone and edge-in backlight module - Google Patents
Cellphone and edge-in backlight module Download PDFInfo
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- CN103542332A CN103542332A CN201310515059.XA CN201310515059A CN103542332A CN 103542332 A CN103542332 A CN 103542332A CN 201310515059 A CN201310515059 A CN 201310515059A CN 103542332 A CN103542332 A CN 103542332A
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- lgp
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- side entrance
- entrance back
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Abstract
The invention discloses a cellphone and an edge-in backlight module. The edge-in backlight module comprises a light guide plate and a light source emitting light into the lateral side of the light guide plate. The longitudinal section of the light guide plate along the light incidence direction is wedged-shaped, and the light source is arranged on a thickest end face of the light guide plate. By the wedge-shaped light guide plate, the nearer the light guide plate is to the light source, the thicker the light guide plate is, the higher the transmission loss of light rays in the light guide plate after reflection is, and on the contrary, the further the light guide plate is to the light source, the thicker the light guide plate is, the lower the transmission loss of the light rays in the light guide plate after reflection is, thus, luminance of the light guide plate is balanced, and the luminance of the edge-in backlight module meets the requirement on uniformity by the lower cost.
Description
Technical field
The present invention relates to adopt digital equipment and the domain of communication equipment of side entrance back, in particular the side entrance back module on a kind of mobile phone.
Background technology
In existing side entrance back module, all adopted LGP, and light can be lost in transmission, make Yue Jin position, distance lamp source in LGP, brightness is also just brighter, apart from Yue Yuan position, lamp source, brightness is also just darker, can cause thus the brightness of side entrance back module to be difficult to meet uniform requirement.
But traditional way is mostly that this has just increased the production cost of side entrance back module undoubtedly by changing the position in lamp source or increasing the quantity in lamp source and adopt scattering film to meet the uniform requirement of its brightness.
Therefore, prior art still haves much room for improvement and develops.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of side entrance back module, can make whole brightness backlight more even by lower cost.
Meanwhile, the present invention also provides a kind of mobile phone, its brightness backlight used can be more evenly, cost is also lower.
Technical scheme of the present invention is as follows: a kind of side entrance back module, comprise LGP and from the lamp source of this LGP side incident, wherein: described LGP is wedge shape along the Xray films that enters light direction, and described lamp source is positioned at the thickest end of described light guide plate.
Described side entrance back module, wherein: on the thickest end face of described light guide plate, be provided with and described lamp source lenticular mode curved surface one to one, for the scattered light that described lamp source is sent, reflect into the incident light paralleling with the end face of described LGP.
Described side entrance back module, wherein: the bottom surface of described LGP is stepped step surface, described step surface parallels with the end face of described LGP, joint face between adjacent stations terrace is skewed towards described LGP end face, for reflecting the incident light in described lamp source, the spacing between adjacent joint face is less than the spacing between the neighbor pixel of liquid crystal display module.
Described side entrance back module, wherein: described step surface is arranged in horizontal strip in the bottom surface of described LGP, interlaced setting between the step surface of adjacent strip.
Described side entrance back module, wherein: the angle between described joint face and described step surface is 135 degree, for incident light being reflected into the reverberation perpendicular with described LGP end face.
Described side entrance back module, wherein: described joint face comprises the first joint face and second joint face of adjacent setting, angle between described the first joint face and described step surface is the obtuse angle that is less than 135 degree, angle between described the second joint face and described step surface is the obtuse angle that is greater than 135 degree, for incident light being converted to from the scattered light of the end face bright dipping of described LGP.
Described side entrance back module, wherein: the bottom surface of described LGP is stepped column concave surface, for the incident light in described lamp source is carried out to diffuse reflection towards the end face direction of described LGP, the spacing between adjacent concave surface is less than the spacing between the neighbor pixel of liquid crystal display module.
Described side entrance back module, wherein: the bottom surface of described LGP, two sides and the thinnest end face of thickness are provided with reflecting layer.
, comprise liquid crystal display module and be positioned at its backlight module below, wherein: described backlight module is set to the side entrance back module described in above-mentioned middle any one.
A kind of mobile phone provided by the present invention and side entrance back module thereof, owing to having adopted the LGP of wedge shape, the thickness of the position LGP nearer apart from light source is thicker, the loss that light transmits after reflection in LGP is also just larger, and it is thinner apart from the thickness of Yue Yuan position, lamp source LGP, the loss that light transmits after reflection in LGP is also just less, thus balance the brightness of monoblock LGP, thereby with lower production cost, make the brightness of side entrance back module meet uniform requirement.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of side entrance back module of the present invention.
Fig. 2 is side entrance back module light path diagrammatic top view of the present invention.
Fig. 3 is side entrance back module light path diagrammatic side view of the present invention.
Fig. 4 is the fine structure schematic diagram of local A place embodiment one in side entrance back module Fig. 3 of the present invention.
Fig. 5 is the threedimensional model schematic diagram of side entrance back module Fig. 4 embodiment mono-of the present invention.
Fig. 6 is the threedimensional model schematic diagram of side entrance back module Fig. 4 embodiment bis-of the present invention.
Fig. 7 is the fine structure schematic diagram of local A place embodiment two in side entrance back module Fig. 3 of the present invention.
Fig. 8 is the fine structure schematic diagram of local A place embodiment three in side entrance back module Fig. 3 of the present invention.
The specific embodiment
Below with reference to accompanying drawing, the specific embodiment of the present invention and embodiment are described in detail, described specific embodiment only, in order to explain the present invention, is not intended to limit the specific embodiment of the present invention.
As shown in Figure 1, Fig. 1 is the schematic perspective view of side entrance back module of the present invention, this side entrance back module comprises LGP 100 and lamp source 210, described lamp source 210 can adopt light emitting diode, and the light that its light-emitting area is sent can enter into from the side of described LGP 100 inside of this LGP 100; Wherein, the Xray films that described LGP 100 enters light direction along light is wedge shape, this point also can be seen the shape that draws wedge shape from the profile of these LGP 100 sides, described lamp source 210 is placed on the described LGP 100 the thickest ends of thickness, can utilize thus Wedge shape light conduction board to carry out the whole brightness backlight of balance, so that it is more even, and cost is also low.
In the preferred embodiment of side entrance back module of the present invention, can on the incidence surface in the thickest close described lamp of the end face source 210 of described LGP 100 thickness, set out the curved surface 120 of lenticular mode, sphere for example, for corresponding with described lamp source 210, in Fig. 1, only show three curved surfaces 120, corresponding one by one with three lamp sources 210 respectively, with scattered light that these lamp sources 210 are sent respectively polymerization reflect into directional light, thus can be so that more light enters in described LGP 100, in Fig. 1, also show the end face 110 of described LGP 100, the position relationship of 130He side, bottom surface 140.
Concrete, shown in Fig. 2, Fig. 2 is side entrance back module light path diagrammatic top view of the present invention, in the plane paralleling with 100 end faces 110 of LGP shown in Fig. 1, described curved surface 120 is and lens-shaped centered by corresponding lamp source 210, the described lamp source 210 light polymerization that disperse both sides to the left and right can be reflected into the directional light paralleling with described LGP 100 sides 140 thus.
Again in conjunction with shown in Fig. 3, Fig. 3 is side entrance back module light path diagrammatic side view of the present invention, in the plane paralleling with 100 sides 140 of LGP shown in Fig. 1, described curved surface 120 is also and lens-shaped centered by corresponding lamp source 210, the described lamp source 210 light polymerization that disperse both sides up and down can be reflected into the directional light paralleling with described LGP 100 end faces 110 thus.
For the directional light inciding in described LGP 100, the bottom surface 130 of described LGP 100 has just become an inclined-plane that is small angle inclination towards its end face 110 directions, and in order to improve the reflecting effect of this bottom surface 130, be preferably, shown in Fig. 4, Fig. 4 is the fine structure schematic diagram of local A place embodiment one in side entrance back module Fig. 3 of the present invention, the bottom surface 130 of described LGP 100 is stepped step surface 131, described step surface 131 parallels with the end face 110 of described LGP 100, joint face 132 between adjacent stations terrace 131 is skewed towards described LGP 100 end faces 110, for reflecting the incident light in described lamp source 210, and the spacing between adjacent joint face 132 is less than the spacing between the neighbor pixel of liquid crystal display module.
In embodiment one, can include again two embodiment, wherein: shown in Fig. 5, Fig. 5 is the threedimensional model schematic diagram of side entrance back module Fig. 4 embodiment mono-of the present invention, and step surface 131 and its joint face 132 of in embodiment mono-, forming its bottom surface 130 are all continuous planes on the horizontal direction along described LGP 100 (being the width of LGP shown in Fig. 1 100).
Embodiment bis-is in conjunction with shown in Fig. 6, Fig. 6 is the threedimensional model schematic diagram of side entrance back module Fig. 4 embodiment bis-of the present invention, the step surface (131a and 131b) that forms its bottom surface 130 in embodiment bis-with and joint face (132a and 132b) on the width of LGP shown in Fig. 1 100, be not continuous plane, but be arranged in horizontal strip in the bottom surface 130 of described LGP 100, interlaced setting between the step surface 131a of adjacent strip and 131b, also interlaced setting between the joint face 132a of adjacent strip and 132b, and the width of the step surface 131a of strip and 131b or joint face 132a and 132b is also all less than the spacing between the neighbor pixel of liquid crystal display module.
Further, by controlling joint face in embodiment one, (be the joint face 132 in embodiment mono-, or joint face 132a and 132b in embodiment bis-) angle of inclination, can obtain different separately reflecting effects, and can improve the whole effect backlight of side entrance back module.
A kind of mode as shown in Figure 4, angle between joint face 132 described in embodiment mono-and described step surface 131 is 135 degree, be equivalent to shown in Fig. 4 angle when β=45 are spent, now described joint face 132 can go out incident light from end face 110 vertical reflections of described LGP 100; Angle between joint face 132a described in embodiment bis-(and 132b) and step surface 131a (and 131b) also can arrange by this kind of mode.
Another kind of mode as shown in Figure 7, Fig. 7 is the fine structure schematic diagram of local A place embodiment two in side entrance back module Fig. 3 of the present invention, different from embodiment shown in Fig. 4 one is, the joint face that forms this bottom surface of light guide plate 130` in embodiment shown in Fig. 7 two can form one group by the first adjacent joint face 132` and the second joint face 133`, wherein, angle between described the first joint face 132` and described step surface 131` is the obtuse angle that is less than 135 degree, acute angle when being equivalent to 1 > 45 of β shown in Fig. 7 and spending, angle between described the second joint face 133` and described step surface 131` is the obtuse angle that is greater than 135 degree, acute angle when being equivalent to 2 < 45 of β shown in Fig. 7 and spending, incident light can be converted to from the scattered light of LGP end face 110 bright dippings thus, and the angle θ 1 of scattered light and θ 2 all can control, to regulate whole effect backlight, equally, the angle between joint face 132a described in embodiment bis-(and 132b) and step surface 131a (and 131b) also can arrange by this kind of mode.
Also has a kind of fine structure that can effectively improve the reflecting effect of described bottom surface of light guide plate, as shown in Figure 8, Fig. 8 is the fine structure schematic diagram of local A place embodiment three in side entrance back module Fig. 3 of the present invention, the bottom surface 130`` of described LGP 100 is stepped column concave surface 131``, for the incident light in described lamp source 210 is carried out to diffuse reflection towards end face 110 directions of described LGP, spacing between adjacent concave surface 131`` is less than the spacing between the neighbor pixel of liquid crystal display module, compare with first two embodiment, because embodiment three does not exist the step surface paralleling with incident light, can there is more surface to participate in incident reflection of light, the uniformity of the Integral back brightness of embodiment three can be also that the reflecting effect of embodiment is better than first two thus, brightness is more even.
Simultaneously, in order to improve better the uniformity of this inclined-plane overall reflective, can also be according to the distance apart from lamp source 210, in appropriate change embodiment one, distance lamp source 210 diverse location place joint faces (are the joint face 132 in embodiment mono-, or joint face 132a and 132b in embodiment bis-) width carry out the whole brightness backlight of balance so that it is more even; For embodiment two, being appropriate change carrys out the whole brightness backlight of balance apart from the width of the lamp source 210 joint face 132` of diverse location place and 133`, so that it is more even; And for embodiment three, being appropriate change carrys out the whole brightness backlight of balance apart from the width of the lamp source 210 column concave surface 131`` of diverse location place, so that it is more even.
In addition, in order to improve reflecting effect, can all set out reflecting layer in 130, two sides 140, bottom surface and the thinnest end of thickness of the LGP 100 shown in Fig. 4, formula structure backlight thus can make it in conjunction with improvement above to become one, thereby reflectance coating, light-diffusing film and bright enhancement film have been saved, and avoided should entering dust between these films and LGP and reduce whole brightness and uniformity backlight, also simplified the structure of side entrance back module simultaneously.
Based on above-mentioned side entrance back module, the invention allows for a kind of mobile phone, comprise liquid crystal display module and be positioned at its backlight module below, wherein: described backlight module is set to the side entrance back module described in any one embodiment in above-mentioned embodiment, to reduce the cost of part backlight, and make its brightness backlight more even.
Should be understood that; the foregoing is only preferred embodiment of the present invention; be not sufficient to limit technical scheme of the present invention; for those of ordinary skills; within the spirit and principles in the present invention; can be increased and decreased according to the above description, replaced, converted or be improved, and all these increases and decreases, replace, conversion or improve after technical scheme, all should belong to the protection domain of claims of the present invention.
Claims (9)
1. a side entrance back module, comprises LGP and from the lamp source of this LGP side incident, it is characterized in that: described LGP is wedge shape along the Xray films that enters light direction, and described lamp source is positioned at the thickest end of described light guide plate.
2. side entrance back module according to claim 1, it is characterized in that: on the thickest end face of described light guide plate, be provided with and described lamp source lenticular mode curved surface one to one, for the scattered light that described lamp source is sent, reflect into the incident light paralleling with the end face of described LGP.
3. side entrance back module according to claim 1, it is characterized in that: the bottom surface of described LGP is stepped step surface, described step surface parallels with the end face of described LGP, joint face between adjacent stations terrace is skewed towards described LGP end face, for reflecting the incident light in described lamp source, the spacing between adjacent joint face is less than the spacing between the neighbor pixel of liquid crystal display module.
4. side entrance back module according to claim 3, is characterized in that: described step surface is arranged in horizontal strip in the bottom surface of described LGP interlaced setting between the step surface of adjacent strip.
5. side entrance back module according to claim 3, is characterized in that: the angle between described joint face and described step surface is 135 degree, for incident light being reflected into the reverberation perpendicular with described LGP end face.
6. side entrance back module according to claim 3, it is characterized in that: described joint face comprises the first joint face and second joint face of adjacent setting, angle between described the first joint face and described step surface is the obtuse angle that is less than 135 degree, angle between described the second joint face and described step surface is the obtuse angle that is greater than 135 degree, for incident light being converted to from the scattered light of the end face bright dipping of described LGP.
7. side entrance back module according to claim 1, it is characterized in that: the bottom surface of described LGP is stepped column concave surface, for the incident light in described lamp source is carried out to diffuse reflection towards the end face direction of described LGP, the spacing between adjacent concave surface is less than the spacing between the neighbor pixel of liquid crystal display module.
8. side entrance back module according to claim 1, is characterized in that: the bottom surface of described LGP, two sides and the thinnest end face of thickness are provided with reflecting layer.
9. a mobile phone, comprises liquid crystal display module and is positioned at its backlight module below, it is characterized in that: described backlight module is set to the side entrance back module described in any one in claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515059.XA CN103542332A (en) | 2013-10-28 | 2013-10-28 | Cellphone and edge-in backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515059.XA CN103542332A (en) | 2013-10-28 | 2013-10-28 | Cellphone and edge-in backlight module |
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| CN103542332A true CN103542332A (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310515059.XA Pending CN103542332A (en) | 2013-10-28 | 2013-10-28 | Cellphone and edge-in backlight module |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105530349A (en) * | 2016-01-08 | 2016-04-27 | 珠海格力电器股份有限公司 | Key light guide structure and mobile phone |
| CN105892150A (en) * | 2016-06-08 | 2016-08-24 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2016197436A1 (en) * | 2015-06-08 | 2016-12-15 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN108363239A (en) * | 2017-01-27 | 2018-08-03 | 矢崎总业株式会社 | Back light unit and head-up display device |
| CN108898951A (en) * | 2018-07-27 | 2018-11-27 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN109765723A (en) * | 2019-03-12 | 2019-05-17 | 京东方科技集团股份有限公司 | A kind of light source assembly, side-edge type backlight mould group and display device |
| CN111679491A (en) * | 2020-05-11 | 2020-09-18 | 深圳市隆利科技股份有限公司 | Direct type backlight device |
| CN112363352A (en) * | 2020-12-10 | 2021-02-12 | 福州大学 | Quantum dot optical coupling structure applied to side-in backlight module and manufacturing method |
| JP7390547B2 (en) | 2019-08-08 | 2023-12-04 | パナソニックＩｐマネジメント株式会社 | Optical systems, lighting systems, display systems and moving objects |
| JP7390546B2 (en) | 2019-08-08 | 2023-12-04 | パナソニックＩｐマネジメント株式会社 | Optical systems, lighting systems, display systems and moving objects |
| US11835719B2 (en) | 2019-04-26 | 2023-12-05 | Panasonic Intellectual Property Management Co., Ltd. | Optical system for a display system projecting a virtual image onto a target space |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016197436A1 (en) * | 2015-06-08 | 2016-12-15 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
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| CN108898951A (en) * | 2018-07-27 | 2018-11-27 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN109765723A (en) * | 2019-03-12 | 2019-05-17 | 京东方科技集团股份有限公司 | A kind of light source assembly, side-edge type backlight mould group and display device |
| US11835719B2 (en) | 2019-04-26 | 2023-12-05 | Panasonic Intellectual Property Management Co., Ltd. | Optical system for a display system projecting a virtual image onto a target space |
| JP7390547B2 (en) | 2019-08-08 | 2023-12-04 | パナソニックＩｐマネジメント株式会社 | Optical systems, lighting systems, display systems and moving objects |
| JP7390546B2 (en) | 2019-08-08 | 2023-12-04 | パナソニックＩｐマネジメント株式会社 | Optical systems, lighting systems, display systems and moving objects |
| CN111679491A (en) * | 2020-05-11 | 2020-09-18 | 深圳市隆利科技股份有限公司 | Direct type backlight device |
| CN112363352A (en) * | 2020-12-10 | 2021-02-12 | 福州大学 | Quantum dot optical coupling structure applied to side-in backlight module and manufacturing method |
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Application publication date: 20140129 |