CN103499068A - Backlight source, splicing type backlight source and display device - Google Patents
Backlight source, splicing type backlight source and display device Download PDFInfo
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- CN103499068A CN103499068A CN201310460449.1A CN201310460449A CN103499068A CN 103499068 A CN103499068 A CN 103499068A CN 201310460449 A CN201310460449 A CN 201310460449A CN 103499068 A CN103499068 A CN 103499068A
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- 230000003287 optical effect Effects 0.000 claims abstract description 23
- 238000007598 dipping method Methods 0.000 claims description 22
- 239000012528 membrane Substances 0.000 abstract 2
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to the technical field of display devices, in particular to a backlight source, a splicing type backlight source and a display device. The backlight source comprises a light guide plate, a reflector plate, an optical membrane set and lamp bars. The light guide plate is provided with a light inlet side and a light outlet side, wherein the light inlet side and the light outlet side are opposite to each other in position, and the light inlet side of the light guide plate is provided with at least one groove. The reflector plate wraps the light guide plate, and the light outlet side of the light guide plate is exposed. The optical membrane set is arranged on the light outlet side of the light guide plate. The lamp bars are arranged in the grooves in the light inlet side of the light guide plate. According to the technical scheme, since the light guide plate provided with the light inlet side and the light outlet side which are opposite to each other is used, and the lamp bars are arranged in the grooves of the light guide plate, the thickness of the backlight source is reduced, and the development of thin display devices with narrow borders or without borders is facilitated.
Description
Technical field
The present invention relates to the technical field of display unit, refer more particularly to a kind of backlight, spliced backlight and display unit.
Background technology
At present, lightness, slimming, attractive in appearanceization have become demonstration industry Future Development trend, and to achieve these goals, backlight of the prior art can adopt narrow frame design mode when design.
Backlight of the prior art is by adopting straight-down negative and two kinds of backlight design of side entering type.Wherein, the design principle of direct-light-type backlight is that light source is set below diffuser plate.And the design of side-edge type backlight is by the LGP side, light source being set.The cutaway view that Fig. 1 is the side entrance back source structure that backlight is commonly used, in the lump with reference to figure 2, the enlarged drawing that Fig. 2 is A place in Fig. 1, side-edge type backlight 1 of the prior art comprises: backboard framework 7, be arranged on the reflector plate 5 in backboard framework 7, the optical diaphragm group 3 that is arranged at the LGP 4 of reflector plate 5 tops and is arranged at described LGP 4 tops, be arranged at the lamp bar 6 of backboard framework 7 sidewalls relative with described LGP 4 light inlet sides, and the anti-dazzling screen 2 that is positioned at lamp bar 6 tops and is fixedly connected with described backboard framework 7.
The defect of prior art is: during the direct-light-type backlight design, light source is placed on below diffuser plate, causes backlight integral thickness and weight to increase, thereby has influence on the slimming of display unit.And side-edge type backlight when design at LGP lateral layout light source, make Integral back light source overall dimensions increase, cause having influence on narrow frame and the Rimless of display unit.
Summary of the invention
The invention provides a kind of backlight, spliced backlight and display unit, reduced the thickness of backlight, be convenient to the slimming of display unit, narrow frame, Rimless development.
The invention provides a kind of backlight, this backlight comprises:
LGP with light inlet side and bright dipping side, wherein, described light inlet side is relative with described bright dipping side position, and the light inlet side of described LGP has at least one groove;
Be wrapped in described LGP and expose the reflector plate of described bright dipping side;
Be arranged at the optical diaphragm group of described LGP bright dipping side;
Be arranged at the lamp bar in described LGP light inlet side groove.
In technique scheme, by adopting the light inlet side LGP relative with the bright dipping side, and the lamp bar is arranged in the groove of LGP, thereby has reduced the thickness of backlight, be convenient to the development of the slimming of display unit, narrow frame and Rimless.
Preferably, described LGP has wedge, and described wedge is positioned at the light inlet side of described LGP, and described groove is arranged at described wedge.Reduce to greatest extent the impact of lamp bar on light guide plate, reduced the thickness of whole backlight.
Preferably, described LGP has wedge, and described wedge is positioned at the bright dipping side of described LGP, and described groove is relative with described wedge setting position.Reduce to greatest extent the impact of lamp bar on light guide plate, reduced the thickness of whole backlight.
Preferably, the number of described lamp bar is four, and the rectangular arrangement of four described lamp bars or be arranged into two arrangements.Be convenient to the light that the lamp bar irradiates disperses in LGP.
Preferably, described reflector plate is pasted and is connected with described LGP.Be convenient to the fixing of reflector plate.
Preferably, described backlight also comprises the anti-dazzling screen that is arranged at described optical diaphragm group top.Avoid occurring the phenomenon of light leak, improved the display effect of display unit.
Preferably, described backlight also comprises backboard, and described reflector plate, LGP, optical diaphragm group and anti-dazzling screen are arranged in described backboard.Protect reflector plate, LGP and blooming piece by backboard, improved the security of backlight.
Preferably, described backlight also comprises frame shape anti-dazzling screen, and described optical diaphragm group, LGP, reflector plate are fixed in the inside casing of described frame shape anti-dazzling screen.Realize the Rimless of backlight, be convenient to narrow frame and the Rimless development of display unit.
The present invention also provides a kind of spliced backlight, comprises a plurality of above-mentioned any backlight that splicing is fixing.By adopting above-mentioned any backlight splicing to be fixed into spliced backlight, reduced the thickness of spliced backlight, be convenient to narrow frame and the Rimless development of display unit.
The present invention also provides a kind of display unit, comprises above-mentioned any backlight that one or more splicings are fixing.Reduce the thickness of display unit, be convenient to narrow frame and the Rimless development of display unit.
The accompanying drawing explanation
The cutaway view that Fig. 1 is side-edge type backlight in prior art;
The enlarged drawing that Fig. 2 is A place in Fig. 1;
The structural representation of the backlight that Fig. 3 provides for the embodiment of the present invention;
The exploded view of the backlight that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the LGP with wedge that Fig. 5 provides for the embodiment of the present invention;
Another structural representation of the LGP with wedge that Fig. 6 provides for the embodiment of the present invention;
The LGP that Fig. 7 provides for the embodiment of the present invention is placed the structural representation of lamp bar.
Reference numeral:
1-backlight (prior art) 2-anti-dazzling screen (prior art) 3-optical diaphragm group (prior art)
4-LGP (prior art) 5-reflector plate (prior art) 6-lamp bar (prior art)
7-backboard framework (prior art) 10-anti-dazzling screen 20-optical diaphragm group
30-LGP 31-wedge 40-reflector plate
50-lamp bar
The specific embodiment
In order to reduce the thickness of backlight, be convenient to narrow frame, the Rimless development of display unit, the invention provides a kind of backlight, spliced backlight and display unit, in technical scheme of the present invention, by the lamp bar being arranged in the light inlet side that LGP is relative with the bright dipping side, reduce the thickness of backlight, be convenient to narrow frame, the Rimless development of display unit.For making the purpose, technical solutions and advantages of the present invention clearer, below take nonrestrictive embodiment and the present invention is described in further detail as example.
As shown in Figure 3 and Figure 4, the structural representation of the backlight that Fig. 2 provides for the embodiment of the present invention, the exploded view of the backlight that Fig. 3 provides for the embodiment of the present invention.
The embodiment of the present invention provides a kind of backlight, and this backlight comprises:
LGP 30 with light inlet side and bright dipping side, wherein, described light inlet side is relative with described bright dipping side position, and the light inlet side of described LGP 30 has at least one groove;
Be wrapped in described LGP 30 and expose the reflector plate 40 of described bright dipping side;
Be arranged at the optical diaphragm group 20 of described LGP 30 bright dipping sides;
Be arranged at the lamp bar 50 in described LGP 30 light inlet side grooves.
In the above-described embodiments, the light inlet side of LGP 30 is relative with the bright dipping side position of LGP 30, and a plurality of lamp bars 50 are arranged in the groove of LGP 30 light inlet sides, make the integral thickness attenuation of backlight, simultaneously, light lamp bar 50 irradiated by the reflector plate 40 that is wrapped in LGP 30 is reflected, and penetrates by the bright dipping side of LGP 30, realizes that backlight provides the function of light.Than backlight of the prior art, the thickness of the embodiment of the present invention is lower than direct-light-type backlight, the light inlet side of the LGP 30 in the present embodiment is relative with the bright dipping side position, thereby makes the light inlet side have enough spaces that arranges that lamp bar 50 is set, and has improved the light efficiency of backlight.
In above-mentioned enforcement, the concrete structure of LGP 30 and lamp bar 50 can, for different structures, be elaborated below in conjunction with accompanying drawing.
Embodiment 1
Continuation is with reference to figure 4, and LGP 30 is cuboid LGP 30, and a plurality of grooves that hold lamp bar 50 are arranged at the light inlet side of LGP 30.Now, the number of lamp bar 50 can be set according to the size of LGP 30, to guarantee that backlight can provide the light that whole display unit is illuminated.The setting position of a plurality of lamp bars 50 and arrangement mode also can be set as required, when arranging, setting position and arrangement mode according to the size Selection lamp bar 50 of LGP 30, can be arranged in any shape, as arbitrary shapes such as one or more sheathed annulars, rectangles.On setting position, preferably be arranged at the centre that is positioned at the light inlet side.Be convenient to light and carry out mixed light in LGP 30, and the light that makes exiting surface penetrate is more even.
Embodiment 2
As shown in Figure 5, Fig. 5 shows a kind of set-up mode of wedge 31, LGP 30 has wedge 31, wedge 31 is positioned at the light inlet side of LGP 30, and groove is arranged at wedge 31, in the present embodiment, lamp bar 50 is arranged in wedge 31, thereby the thickness that makes LGP 30 breaks away from the restriction of lamp bar 50 sizes, when the lamp bar 50 of selecting is oversize, can be by increasing the thickness of wedge 31, the thickness at other positions can reduce to greatest extent, this thickness that refers to greatest extent LGP 30 can guarantee to form the required minimum thickness of uniform area source.Continuation is with reference to figure 5, wedge 31 is arranged at the light inlet side of LGP 30, make the light inlet side of LGP 30 form a projection, the light that lamp bar 50 irradiates in entering into LGP 30 during other positions before, formed mixed light, can better disperse during other positions in entering into LGP 30, so that form uniform light when exiting surface penetrates, avoid occurring the optics dark space.
Embodiment 3
As shown in Figure 6, Fig. 6 shows another set-up mode of wedge 31.LGP 30 has wedge 31, and wedge 31 is positioned at the bright dipping side of LGP 30, and groove is relative with wedge 31 setting positions.Now, wedge 31 is positioned at the bright dipping side of LGP 30, and groove is relative with the position of wedge 31, to ensure enough spaces, holds lamp bar 50.Preferably, wedge 31 is positioned at the middle part of LGP 30 exiting surfaces, corresponding, lamp bar 50 also is arranged at the middle part of LGP 30 light inlet sides, is convenient to the propagation of light in LGP 30.
By above-mentioned several embodiment, can be found out, the structure of LGP 30 can adopt different structures, when the size of the lamp bar 50 arranged is smaller, can adopt cuboid or similar structure, its exiting surface and incidence surface are plane, because lamp bar 50 is arranged in LGP 30, therefore, the thickness of backlight can significantly reduce.In lamp bar 50 sizes that arrange when larger, can adopt the structure with wedge 31, now, can select light inlet side or bright dipping side that wedge 31 is set, now, the size of the LGP 30 only thickness at the position at wedge 31 places increases to some extent, therefore, compare with backlight of the prior art, significantly reduced thickness, contribute to narrow frame and the Rimless development of display unit.As shown in Figure 7, as a kind of, preferably select, the number of lamp bar 50 is four, and four rectangular arrangements of lamp bar 50 or be arranged into two arrangements, and these four lamp bars 50 are positioned at the middle part of described LGP 30.
Backlight in above-described embodiment can be the Rimless backlight, can be also the backlight of thin.Below for example its structure is described.
When being Rimless, backlight comprises the reflector plate 40 in above-described embodiment, LGP 30, optical diaphragm group 20 and lamp bar 50, and adopt reflector plate 40 to be fixed, concrete, reflector plate 40 is pasted and is connected with LGP 30, now, reflector plate 40 not only is wrapped in the outside of LGP 30, also wrap optical diaphragm group 20, thereby LGP 30 and optical diaphragm group 20 is fixing, as a kind of preferably scheme, reflector plate 40 also wraps the edge of blooming piece on the top of optical diaphragm group 20, only expose the zone corresponding with display floater, to prevent light leak, thereby reach the purpose of the display effect that improves display unit.Perhaps adopt between the blooming piece on the top of optical diaphragm group 20 or LGP 30 and optical diaphragm group 20 anti-dazzling screen 10 is set, and be fixed by reflector plate 40, can realize above-mentioned purpose equally.
When adopting anti-dazzling screen 10, can also select another Rimless structure, concrete, anti-dazzling screen 10 is frame shape anti-dazzling screen 10, optical diaphragm group 20, LGP 30, reflector plate 40 are fixed in the inside casing of frame shape anti-dazzling screen 10.Now, between optical diaphragm group 20, LGP 30 and reflector plate 40, without any connecting material, connect, only by frame shape anti-dazzling screen 10, all parts are fixed.As a kind of preferred version, the part contacted with the blooming piece on optical diaphragm group 20 tops at anti-dazzling screen 10 applies reflecting layer, both can reach the purpose of shading, the light reflection blocked can also be returned, again after the parts such as optical diaphragm group 20, LGP 30, reflector plate 40, shine the viewing area of display floater, thereby avoided the loss of light, reduced the power consumption of display unit, improved its energy utilization rate.
When backlight is thin backlight, backlight comprises backboard, LGP 30 in backlight, lamp bar 50, reflector plate 40, optical diaphragm group 20 all are arranged in backboard, and be fixed by backboard, in addition, when backlight comprises anti-dazzling screen 10, this anti-dazzling screen 10 also is arranged in backboard, and can avoid display unit the phenomenon of light leak to occur.By adopting backboard to provide certain protection to all parts in backlight, avoid it clashing and breaking to occur in use and cause the situation of cisco unity malfunction, the security that has improved whole backlight.
The embodiment of the present invention also provides a kind of spliced backlight, and this spliced backlight comprises a plurality of above-mentioned any backlight that splicing is fixing.Concrete, its backlight adopted can be the backlight of same structure, also can adopt the backlight of different structure to be spliced, for example: in the backlight of employing, wherein a part is the Rimless backlight, another part is thin backlight, the backlight of above-mentioned different structure is connected and fixed by attaching parts, thereby realizes providing light source to giant-screen.Should be understood that the spliced backlight that the embodiment of the present invention provides is not limited only to this kind of possibility for example, can also be the backlight of other any different structures or same structure, at this, will not enumerate.As a kind of preferred version, preferably, select the backlight of same structure to be fixedly connected into spliced backlight, so that being fixedly connected with between adjacent backlight.The spliced backlight provided due to the present embodiment has adopted the backlight in above-described embodiment, therefore, has reduced the thickness of spliced backlight, is convenient to Rimless and the development of narrow frame of display unit.
The embodiment of the present invention also provides a kind of display unit, and this display unit comprises at least one above-mentioned any backlight.Concrete, display unit comprises Rimless backlight or the thin backlight in above-described embodiment, has reduced the thickness of display unit, is convenient to display unit Rimless and the development of narrow frame.Perhaps, display unit comprises spliced backlight, be fixing above-mentioned any backlights of a plurality of splicings, its concrete structure is determined according to the actual production structure, when sized display is larger, spliced backlight can be adopted, in sized display hour, single above-mentioned any backlight can be selected.All the thickness of backlight be can reduce, Rimless and the development of narrow frame of display unit are convenient to.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a backlight, is characterized in that, comprising:
LGP with light inlet side and bright dipping side, wherein, described light inlet side is relative with described bright dipping side position, and the light inlet side of described LGP has at least one groove;
Be wrapped in described LGP and expose the reflector plate of described bright dipping side;
Be arranged at the optical diaphragm group of described LGP bright dipping side;
Be arranged at the lamp bar in described LGP light inlet side groove.
2. backlight as claimed in claim 1, is characterized in that, described LGP has wedge, and described wedge is positioned at the light inlet side of described LGP, and described groove is arranged at described wedge.
3. backlight as claimed in claim 1, is characterized in that, described LGP has wedge, and described wedge is positioned at the bright dipping side of described LGP, and described groove is relative with described wedge setting position.
4. backlight as claimed in claim 1, is characterized in that, the number of described lamp bar is four, and the rectangular arrangement of four described lamp bars or be arranged into two arrangements.
5. backlight as claimed in claim 1, is characterized in that, described reflector plate is pasted and is connected with described LGP.
6. backlight as described as claim 1～5 any one, is characterized in that, also comprises the anti-dazzling screen that is arranged at described optical diaphragm group top.
7. backlight as claimed in claim 6, is characterized in that, also comprises backboard, and described reflector plate, LGP, optical diaphragm group and anti-dazzling screen are arranged in described backboard.
8. backlight as described as claim 1～5 any one, is characterized in that, also comprises frame shape anti-dazzling screen, and described optical diaphragm group, LGP, reflector plate are fixed in the inside casing of described frame shape anti-dazzling screen.
9. a spliced backlight, is characterized in that, comprises a plurality of as described as the claim 1～8 any one backlight that splicing is fixing.
10. a display unit, is characterized in that, comprises the backlight as described as claim 1～8 any one that one or more splicings are fixing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460449.1A CN103499068B (en) | 2013-09-30 | 2013-09-30 | A kind of backlight, spliced backlight and display unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460449.1A CN103499068B (en) | 2013-09-30 | 2013-09-30 | A kind of backlight, spliced backlight and display unit |
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| CN103499068A true CN103499068A (en) | 2014-01-08 |
| CN103499068B CN103499068B (en) | 2016-03-09 |
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Cited By (8)
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| CN104654133A (en) * | 2015-02-10 | 2015-05-27 | 深圳市德仓科技有限公司 | Backlight module, display device and terminal |
| CN104696826A (en) * | 2015-03-20 | 2015-06-10 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| WO2016149966A1 (en) * | 2015-03-20 | 2016-09-29 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN106324904A (en) * | 2016-08-29 | 2017-01-11 | 合肥惠科金扬科技有限公司 | Vertical downward backlight module |
| CN108121109A (en) * | 2016-11-30 | 2018-06-05 | 乐金显示有限公司 | Back light unit and the liquid crystal display with back light unit |
| CN110594607A (en) * | 2019-10-25 | 2019-12-20 | 中国人民解放军国防科技大学 | a modular colorful light-emitting flat panel installation |
| CN115167036A (en) * | 2022-09-08 | 2022-10-11 | 惠科股份有限公司 | Backlight module and display device |
| US11815710B1 (en) | 2023-06-19 | 2023-11-14 | HKC Corporation Limited | Backlight module and display device |
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| CN108121109A (en) * | 2016-11-30 | 2018-06-05 | 乐金显示有限公司 | Back light unit and the liquid crystal display with back light unit |
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| CN108121109B (en) * | 2016-11-30 | 2021-11-30 | 乐金显示有限公司 | Backlight unit and liquid crystal display device having the same |
| CN110594607A (en) * | 2019-10-25 | 2019-12-20 | 中国人民解放军国防科技大学 | a modular colorful light-emitting flat panel installation |
| CN115167036A (en) * | 2022-09-08 | 2022-10-11 | 惠科股份有限公司 | Backlight module and display device |
| US11815710B1 (en) | 2023-06-19 | 2023-11-14 | HKC Corporation Limited | Backlight module and display device |
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| Publication number | Publication date |
|---|---|
| CN103499068B (en) | 2016-03-09 |
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