CN103499068B - A kind of backlight, spliced backlight and display unit - Google Patents
A kind of backlight, spliced backlight and display unit Download PDFInfo
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- CN103499068B CN103499068B CN201310460449.1A CN201310460449A CN103499068B CN 103499068 B CN103499068 B CN 103499068B CN 201310460449 A CN201310460449 A CN 201310460449A CN 103499068 B CN103499068 B CN 103499068B
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- backlight
- guide plate
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- 230000003287 optical effect Effects 0.000 claims abstract description 20
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- 238000005516 engineering process Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The present invention relates to the technical field of display unit, refer more particularly to a kind of backlight, spliced backlight and display unit.This backlight comprises: the light guide plate with incident side and light emission side, and wherein, described incident side is relative with described light emission side position, and the incident side of described light guide plate has at least one groove; Be wrapped in described light guide plate and expose the reflector plate of described light emission side; Be arranged at the optical diaphragm group of described light guide plate light emission side; Be arranged at the lamp bar in described light guide plate incident side groove.In technique scheme, by adopting the incident side light guide plate relative with light emission side, and lamp bar is arranged in the groove of light guide plate, thus reduces the thickness of backlight, be convenient to the development of the slimming of display unit, narrow frame and Rimless.
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 display industry Future Development trend, and to achieve these goals, backlight of the prior art can adopt narrow frame design mode when designing.
Backlight of the prior art is by adopting straight-down negative and side entering type two kinds of backlight design.Wherein, the design principle of direct-light-type backlight arranges light source below diffuser plate.And the design of side-edge type backlight is by arranging light source in light guide plate side.Fig. 1 is the sectional view of the side entrance back source structure that backlight is commonly used, in the lump with reference to figure 2, Fig. 2 is the enlarged drawing at A place in Fig. 1, side-edge type backlight 1 of the prior art comprises: back plate frame 7, be arranged on the reflector plate 5 in back plate frame 7, the optical diaphragm group 3 being arranged at the light guide plate 4 above reflector plate 5 and being arranged at above described light guide plate 4, be arranged at the lamp bar 6 of back plate frame 7 sidewall relative with described light guide plate 4 incident side, and be positioned at the anti-dazzling screen 2 be fixedly connected with above lamp bar 6 and with described back plate frame 7.
The defect of prior art is: during direct-light-type backlight design, light source is placed on below diffuser plate, causes backlight integral thickness and weight to increase, thus has influence on the slimming of display unit.And at light guide plate lateral layout light source during side-edge type backlight design, Integral back light source overall dimensions are increased, causes affecting the narrow frame and Rimless that have influence on display unit.
Summary of the invention
The invention provides a kind of backlight, spliced backlight and display unit, reduce 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:
Have the light guide plate of incident side and light emission side, wherein, described incident side is relative with described light emission side position, and the incident side of described light guide plate has at least one groove;
Be wrapped in described light guide plate and expose the reflector plate of described light emission side;
Be arranged at the optical diaphragm group of described light guide plate light emission side;
Be arranged at the lamp bar in described light guide plate incident side groove.
In technique scheme, by adopting the incident side light guide plate relative with light emission side, and lamp bar is arranged in the groove of light guide plate, thus reduces the thickness of backlight, be convenient to the development of the slimming of display unit, narrow frame and Rimless.
Preferably, described light guide plate has wedge, and described wedge is positioned at the incident side of described light guide plate, and described groove is arranged at described wedge.Reduce lamp bar to greatest extent to the impact of light guide plate, reduce the thickness of whole backlight.
Preferably, described light guide plate has wedge, and described wedge is positioned at the light emission side of described light guide plate, and described groove is relative with described wedge setting position.Reduce lamp bar to greatest extent to the impact of light guide plate, reduce 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 lamp bar irradiates disperse in light guide plate.
Preferably, described reflector plate is pasted with described light guide plate and is connected.Be convenient to the fixing of reflector plate.
Preferably, described backlight also comprises the anti-dazzling screen be arranged at above described optical diaphragm group.Avoid the phenomenon occurring light leak, improve the display effect of display unit.
Preferably, described backlight also comprises backboard, and described reflector plate, light guide plate, optical diaphragm group and anti-dazzling screen are arranged in described backboard.Protect reflector plate, light guide plate and blooming piece by backboard, improve the security of backlight.
Preferably, described backlight also comprises frame-shaped anti-dazzling screen, and described optical diaphragm group, light guide plate, reflector plate are fixed on the inside casing of described frame-shaped anti-dazzling screen.Achieve the Rimless of backlight, be convenient to narrow frame and the Rimless development of display unit.
Present invention also offers a kind of spliced backlight, comprise any one backlight multiple above-mentioned that splicing is fixing.Splice by adopting any one backlight above-mentioned and be fixed into spliced backlight, reduce the thickness of spliced backlight, be convenient to narrow frame and the Rimless development of display unit.
Present invention also offers a kind of display unit, comprise any one backlight above-mentioned that one or more splicing is fixing.Reduce the thickness of display unit, be convenient to narrow frame and the Rimless development of display unit.
Accompanying drawing explanation
Fig. 1 is the sectional view of side-edge type backlight in prior art;
Fig. 2 is the enlarged drawing at 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 with the light guide plate of wedge that Fig. 5 provides for the embodiment of the present invention;
Another structural representation with the light guide plate of wedge that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the light guide plate placement lamp bar that Fig. 7 provides for the embodiment of the present invention.
Reference numeral:
1-backlight (prior art) 2-anti-dazzling screen (prior art) 3-optical diaphragm group (prior art)
4-light guide plate (prior art) 5-reflector plate (prior art) 6-lamp bar (prior art)
7-back plate frame (prior art) 10-anti-dazzling screen 20-optical diaphragm group
30-light guide plate 31-wedge 40-reflector plate
50-lamp bar
Detailed description of the invention
In order to reduce the thickness of backlight, be convenient to the narrow frame of display unit, Rimless development, the invention provides a kind of backlight, spliced backlight and display unit, in the inventive solutions, by lamp bar being arranged in the light guide plate incident side relative with light emission side, reduce the thickness of backlight, be convenient to the narrow frame of display unit, Rimless development.For making the object, technical solutions and advantages of the present invention clearly, for nonrestrictive embodiment, the present invention is described in further detail below.
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.
Embodiments provide a kind of backlight, this backlight comprises:
Have the light guide plate 30 of incident side and light emission side, wherein, described incident side is relative with described light emission side position, and the incident side of described light guide plate 30 has at least one groove;
Be wrapped in described light guide plate 30 and expose the reflector plate 40 of described light emission side;
Be arranged at the optical diaphragm group 20 of described light guide plate 30 light emission side;
Be arranged at the lamp bar 50 in described light guide plate 30 incident side groove.
In the above-described embodiments, the incident side of light guide plate 30 is relative with the light emission side position of light guide plate 30, and multiple lamp bar 50 is arranged in the groove of light guide plate 30 incident side, make the integral thickness of backlight thinning, simultaneously, by the reflector plate 40 being wrapped in light guide plate 30, the light that lamp bar 50 irradiates is reflected, and penetrated by the light emission side of light guide plate 30, realize the function that backlight provides light.Compared to backlight of the prior art, the thickness of the embodiment of the present invention is lower than direct-light-type backlight, the incident side of the light guide plate 30 in the present embodiment is relative with light emission side position, thus makes incident side have enough installation spaces to arrange lamp bar 50, improves the light efficiency of backlight.
In above-mentioned enforcement, the concrete structure of light guide plate 30 and lamp bar 50 can be different structures, is described in detail below in conjunction with accompanying drawing.
Embodiment 1
Continue with reference to figure 4, light guide plate 30 is cuboid light guide plate 30, and the groove of multiple accommodation lamp bar 50 is arranged at the incident side of light guide plate 30.Now, the number of lamp bar 50 can set according to the size of light guide plate 30, to ensure that backlight can provide the light whole display unit illuminated.Setting position and the arrangement mode of multiple lamp bar 50 also can set as required, when arranging, according to setting position and the arrangement mode of the size Selection lamp bar 50 of light guide plate 30, any shape can be arranged in, as arbitrary shapes such as one or more sheathed annular, rectangles.On setting position, be preferably arranged at the centre being positioned at incident side.Be convenient to light and carry out mixed light in light guide plate 30, and the light that exiting surface is penetrated is more even.
Embodiment 2
As shown in Figure 5, Fig. 5 shows a kind of set-up mode of wedge 31, light guide plate 30 has wedge 31, wedge 31 is positioned at the incident side of light guide plate 30, and groove is arranged at wedge 31, in the present embodiment, lamp bar 50 is arranged in wedge 31, thus make the thickness of light guide plate 30 depart from the restriction of lamp bar 50 size, when the lamp bar 50 selected is oversize, can by increasing the thickness of wedge 31, the thickness at other positions can reduce to greatest extent, this thickness referring to light guide plate 30 to greatest extent can ensure to be formed uniform area source required minimum thickness.Continue with reference to figure 5, wedge 31 is arranged at the incident side of light guide plate 30, the incident side of light guide plate 30 is made to form a projection, the light that lamp bar 50 irradiates when entering into other positions in light guide plate 30 before, form mixed light, better can disperse when entering into other positions in light guide plate 30, so that form uniform light when exiting surface penetrates, avoiding occurring optics dark space.
Embodiment 3
As shown in Figure 6, Fig. 6 shows another set-up mode of wedge 31.Light guide plate 30 has wedge 31, and wedge 31 is positioned at the light emission side of light guide plate 30, and groove is relative with wedge 31 setting position.Now, wedge 31 is positioned at the light emission side of light guide plate 30, and groove is relative with the position of wedge 31, to ensure enough spaces to hold lamp bar 50.Preferably, wedge 31 is positioned at the middle part of light guide plate 30 exiting surface, corresponding, lamp bar 50 is also arranged at the middle part of light guide plate 30 incident side, is convenient to the propagation of light in light guide plate 30.
As can be seen from above-mentioned several embodiment, the structure of light guide plate 30 can adopt different structures, when the size of the lamp bar 50 arranged is smaller, cuboid or similar structure can be adopted, its exiting surface and incidence surface are plane, because lamp bar 50 is arranged in light guide plate 30, therefore, the thickness of backlight can significantly reduce.When lamp bar 50 size arranged is larger, the structure of band wedge 31 can be adopted, now, incident side or light emission side can be selected to arrange wedge 31, and now, the thickness at the size of the light guide plate 30 only position at wedge 31 place increases to some extent, therefore, compared with backlight of the prior art, significantly reduce thickness, contribute to narrow frame and the Rimless development of display unit.As shown in Figure 7, preferably select as one, the number of lamp bar 50 is four, and four rectangular arrangements of lamp bar 50 or be arranged into two arrangements, these four lamp bars 50 are positioned at the middle part of described light guide plate 30.
Backlight in above-described embodiment can be Rimless backlight, also can be the backlight of thin.Illustrate below and its structure is described.
When for Rimless, backlight comprises the reflector plate 40 in above-described embodiment, light guide plate 30, optical diaphragm group 20 and lamp bar 50, and adopt reflector plate 40 to be fixed, concrete, reflector plate 40 is pasted with light guide plate 30 and is connected, now, reflector plate 40 is not only wrapped in the outside of light guide plate 30, also wrap optical diaphragm group 20, thus light guide plate 30 and optical diaphragm group 20 are fixed, as one preferably scheme, reflector plate 40 also wraps the edge of the blooming piece on the top of optical diaphragm group 20, only expose the region corresponding with display floater, to prevent light leak, thus reach the object of the display effect improving display unit.Or adopt the blooming piece on the top of optical diaphragm group 20 or between light guide plate 30 and optical diaphragm group 20, anti-dazzling screen 10 is set, and being fixed by reflector plate 40, can above-mentioned purpose be realized equally.
When adopting anti-dazzling screen 10, can also select another Rimless structure, concrete, anti-dazzling screen 10 is frame-shaped anti-dazzling screen 10, and optical diaphragm group 20, light guide plate 30, reflector plate 40 are fixed on the inside casing of frame-shaped anti-dazzling screen 10.Now, optical diaphragm group 20, to connect without any connecting material between light guide plate 30 and reflector plate 40, by means of only frame-shaped 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 top at anti-dazzling screen 10 applies reflecting layer, both the object of shading can have been reached, the light reflection blocked can also be returned, after the parts such as optical diaphragm group 20, light guide plate 30, reflector plate 40, be again irradiated to the viewing area of display floater, thus avoid the loss of light, reduce the power consumption of display unit, improve its energy utilization rate.
When backlight is thin backlight, backlight comprises backboard, light guide plate 30 in backlight, lamp bar 50, reflector plate 40, optical diaphragm group 20 are all arranged in backboard, and be fixed by backboard, in addition, when backlight comprises anti-dazzling screen 10, this anti-dazzling screen 10 is also arranged in backboard, and display unit can be avoided to occur the phenomenon of light leak.By adopting backboard can provide certain protection to all parts in backlight, avoiding it to occur clashing and breaking in use and causing the situation of cisco unity malfunction, improve the security of whole backlight.
The embodiment of the present invention additionally provides a kind of spliced backlight, and this spliced backlight comprises fixing any one backlight multiple above-mentioned of splicing.Concrete, its backlight adopted can be the backlight of same structure, also the backlight of different structure can be adopted to splice, such as: in the backlight of employing, wherein a part is Rimless backlight, another part is thin backlight, is connected and fixed by the backlight of above-mentioned different structure by attaching parts, thus realizes to provide light source to giant-screen.Should be understood that this one that the spliced backlight that the embodiment of the present invention provides is not limited only to illustrate is possible, can also be other any different structures or mutually isostructural backlight, will not enumerate at this.As a kind of preferred version, preferably, mutually isostructural backlight is selected 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 have employed the backlight in above-described embodiment, therefore, reduces the thickness of spliced backlight, is convenient to Rimless and the development of narrow frame of display unit.
The embodiment of the present invention additionally provides a kind of display unit, and this display unit comprises at least one any one backlight above-mentioned.Concrete, display unit comprises Rimless backlight in above-described embodiment or thin backlight, reduces the thickness of display unit, is convenient to display unit Rimless and the development of narrow frame.Or, display unit comprises spliced backlight, namely any one backlight above-mentioned that multiple splicing is fixing, its concrete structure is determined according to actual production structure, when sized display is larger, spliced backlight can be adopted, when sized display is less, single any one backlight above-mentioned can be selected.All can reduce the thickness of backlight, be convenient to Rimless and the development of narrow frame of display unit.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. a backlight, is characterized in that, comprising:
Have the light guide plate of incident side and light emission side, wherein, described incident side is relative with described light emission side position, and the incident side of described light guide plate has at least one groove;
Be wrapped in described light guide plate and expose the reflector plate of described light emission side;
Be arranged at the optical diaphragm group of described light guide plate light emission side;
Be arranged at the lamp bar in described light guide plate incident side groove;
Also comprise frame-shaped anti-dazzling screen, and described optical diaphragm group, light guide plate, reflector plate are fixed on the inside casing of described frame-shaped anti-dazzling screen.
2. backlight as claimed in claim 1, it is characterized in that, described light guide plate has wedge, and described wedge is positioned at the incident side of described light guide plate, and described groove is arranged at described wedge.
3. backlight as claimed in claim 1, it is characterized in that, described light guide plate has wedge, and described wedge is positioned at the light emission side of described light guide plate, and described groove is relative with described wedge setting position.
4. backlight as claimed in claim 1, it is characterized in that, the number of described lamp bar is four, and the rectangular arrangement of four described lamp bars.
5. backlight as claimed in claim 1, it is characterized in that, described reflector plate is pasted with described light guide plate and is connected.
6. a spliced backlight, is characterized in that, comprises multiple backlights as described in any one of Claims 1 to 5 that splicing is fixing.
7. a display unit, is characterized in that, comprises the backlight as described in any one of Claims 1 to 5 that one or more splicing is fixed.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN201310460449.1A CN103499068B (en) | 2013-09-30 | 2013-09-30 | A kind of backlight, spliced backlight and display unit |
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| CN103499068A CN103499068A (en) | 2014-01-08 |
| CN103499068B true CN103499068B (en) | 2016-03-09 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104654133B (en) * | 2015-02-10 | 2018-10-26 | 深圳市德仓科技有限公司 | A kind of backlight module, display device and terminal |
| CN104696826B (en) * | 2015-03-20 | 2017-12-12 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN105090813A (en) * | 2015-03-20 | 2015-11-25 | 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 |
| KR102546055B1 (en) * | 2016-11-30 | 2023-06-22 | 엘지디스플레이 주식회사 | Backlight unit and liquid crystal display device including 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 |
| CN115167036B (en) * | 2022-09-08 | 2022-12-23 | 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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