CN101308285A - Back board of backlight and backlight - Google Patents
Back board of backlight and backlight Download PDFInfo
- Publication number
- CN101308285A CN101308285A CNA2008101024173A CN200810102417A CN101308285A CN 101308285 A CN101308285 A CN 101308285A CN A2008101024173 A CNA2008101024173 A CN A2008101024173A CN 200810102417 A CN200810102417 A CN 200810102417A CN 101308285 A CN101308285 A CN 101308285A
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- CN
- China
- Prior art keywords
- backboard
- backlight
- light
- guide plate
- lampshade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a backlight backboard and a backlight; the backboard is provided with a sheltering part which can shelter from the upward light. The backlight is arranged on the backboard; a light source is arranged under the sheltering part of the backboard. Through arranging the sheltering part on the backboard, the proposal enables a lampshade and the backboard to be integrated into one so as to greatly reduce the assembly process of the backlight and avoid bright lines caused by infirm clamping between the lampshade and a light guide plate during the assembly process of the existing backlight.
Description
Technical field
The present invention relates to the Backlight For Liquid Crystal Display Panels technology, relate in particular to the backboard and the backlight of the backlight that can reduce the backlight assembling procedure.
Background technology
Backlight is divided into side-light type back light and direct-light-type backlight according to the difference of distribution of light sources position.Side-light type back light is mainly used in LCD.
In the prior art, side-light type back light is made up of as light tube group, backboard 2, light guide plate 3, reflecting plate 4, diffuser plate 5, prismatic lens 6 and polaroid 7 light source 1 as shown in Figure 1.During the assembling side-light type back light, light guide plate 3 is overlapped with reflecting plate 4, use lampshade 8 that the light tube group 1 that assembles is engaged with light guide plate 3, reflecting plate 4, be positioned in the backboard 2; On light guide plate 3, place optical film material such as diffuser plate 5, prismatic lens 6 and polaroid 7 then.During use, the light that light source 1 sends enters light guide plate 3 from the coupling of light guide plate front end face, in total reflection back and forth between bottom surface and the two sides on the light guide plate 3, advances to light guide plate 3 terminal surface directions.When the scattering netted dot of the bottom surface that is mapped to light guide plate 3, reflected light destroys total reflection condition, to all directions scattering, thereby the part scattered light have an opportunity to transmit light guide plate 3 from the upper bottom surface of light guide plate 3, become output light.Reflecting plate 4 is used for utilizing once more the scattered light that spills at reverse side; Diffuser plate 5 is used to alleviate the brightness spot; Prismatic lens 6 and polaroid 7 are used to increase positive luminous intensity.The backlight illuminating system of this mode meets slim requirement, and can obtain highlighted, even planar light source, and nearly all notebook computer and various large-scale LCD are all being used.
The defective that existing backlight exists is that lampshade 8 separates with backboard 2, lampshade and backboard 2 need be combined into light tube group during assembling, and light tube group engages light guide plate 3 then, and need put reflecting plate 4, causes backlight assembling procedure complexity.
Summary of the invention
The objective of the invention is to propose a kind of backboard and backlight of backlight, to reduce the assembling procedure of backlight.
For achieving the above object, the invention provides a kind of backboard of backlight, wherein, described backboard has the occlusion part that blocks to glazed thread.
The inwall of described backboard can be provided with reflecting part.That the cross section at described backboard two ends can be is square, semicircle or half arc.
The present invention also provides a kind of backlight that is provided with above-mentioned backboard, comprises light source, and described light source is arranged at the occlusion part below of described backboard.
Such scheme makes lampshade and backboard become one by occlusion part is set on backboard, has significantly reduced the assembling procedure of backlight, when having avoided the assembling of existing backlight lampshade engage with light guide plate not firm, and the bright line phenomenon that causes thus.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the structural representation of backlight in the prior art;
Fig. 2 is the structural representation of backboard one embodiment of backlight of the present invention;
Fig. 3 is the structural representation of another embodiment of backboard of backlight of the present invention;
Fig. 4 is the structural representation of backlight embodiment of the present invention.
Embodiment
Fig. 2 is the structural representation of the backboard embodiment of backlight of the present invention, and backboard 9 has the occlusion part 91 that blocks to glazed thread.During the assembling backlight, fluorescent tube can be arranged at occlusion part 91 belows.Like this, the connecting portion 92 and the relative portion 93 of occlusion part 91, occlusion part 91 can cover fluorescent tube, the direction that obstructs the light beyond light guide plate penetrates, both played the effect of backboard, the function that has lampshade again, avoided in the prior art because of reflecting plate moves, caused light from spilling the problem that produces light between lampshade and the backboard; And during the assembling backlight, avoided the installation procedure of lampshade, also avoided the problem that lampshade may damage light guide plate is installed in the prior art, and light tube group has engaged the not light leakage phenomena of firm generation, and can simplify the assembling procedure of backlight greatly, improve packaging efficiency.
The inwall of described backboard 9 can be provided with reflecting part, with further minimizing light loss.As shown in Figure 3, backboard 94 comprises: the reflecting part 0 that backboard 9 and inwall thereof are provided with.
In the foregoing description, the two ends of backboard 9, backboard 94 are by described occlusion part 91 and connecting portion 92 thereof, portion 93 forms relatively, and cross sectional shape is square, so that processing; The cross sectional shape at the two ends of backboard 9, backboard 94 also all can be curve shapes such as semicircle or half arc, to produce better optical effect, reaches and saves cost and purpose attractive in appearance.
Any one backboard that provides in the foregoing description can be set, as shown in Figure 4 in the backlight.Fig. 4 is the structural representation of backlight embodiment of the present invention, and backlight comprises backboard 94, light source 1, light guide plate 3, diffuser plate 5, prismatic lens 6 and polaroid 7.Lampshade and backboard integrated reduced the operation of lampshade engaging light guide plate, avoided lampshade to engage the bad bad problem of optics that causes with light guide plate.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1, a kind of backboard of backlight is characterized in that, described backboard has the occlusion part that blocks to glazed thread.
2, the backboard of backlight according to claim 1 is characterized in that, the inwall of described backboard is provided with reflecting part.
3, the backboard of backlight according to claim 1 and 2 is characterized in that, described backboard two end sections are square.
4, the backboard of backlight according to claim 1 and 2 is characterized in that, the cross section at described backboard two ends is semicircle.
5, the backboard of backlight according to claim 1 and 2 is characterized in that, described backboard two end sections are half arc.
6, a kind of backlight that is provided with any described backboard among the claim 1-5 comprises light source, it is characterized in that, described light source is arranged at the occlusion part below of described backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101024173A CN101308285A (en) | 2008-03-21 | 2008-03-21 | Back board of backlight and backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101024173A CN101308285A (en) | 2008-03-21 | 2008-03-21 | Back board of backlight and backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101308285A true CN101308285A (en) | 2008-11-19 |
Family
ID=40124797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101024173A Pending CN101308285A (en) | 2008-03-21 | 2008-03-21 | Back board of backlight and backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101308285A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013020304A1 (en) * | 2011-08-10 | 2013-02-14 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device applying the same |
| CN105929583A (en) * | 2016-06-24 | 2016-09-07 | 武汉华星光电技术有限公司 | Back plate and back light module |
-
2008
- 2008-03-21 CN CNA2008101024173A patent/CN101308285A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013020304A1 (en) * | 2011-08-10 | 2013-02-14 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device applying the same |
| US8471979B2 (en) | 2011-08-10 | 2013-06-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Back light module and liquid crystal display device using the same |
| CN105929583A (en) * | 2016-06-24 | 2016-09-07 | 武汉华星光电技术有限公司 | Back plate and back light module |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20081119 |