CN201054060Y - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN201054060Y CN201054060Y CNU2007201547209U CN200720154720U CN201054060Y CN 201054060 Y CN201054060 Y CN 201054060Y CN U2007201547209 U CNU2007201547209 U CN U2007201547209U CN 200720154720 U CN200720154720 U CN 200720154720U CN 201054060 Y CN201054060 Y CN 201054060Y
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- backlight module
- framework
- support component
- optical diaphragm
- diaphragm group
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Abstract
The utility model relates to a backlight module which comprises a frame body, a plurality of support elements and a light source. The frame body is provided with a bottom and an enclosing wall which extends upward from the side of the bottom. A plurality of support elements are configured on the bottom of the frame body, have different height and arranged in an interleaving way. The light source is configured on the bottom of the frame body and positioned among the support elements. The backlight module of the utility model can produce the effects of a plurality of segment supports to withstand the pressure when being warped and increase the pressure-proof capability of the backlight module by utilizing the design of different height support elements. At the same time, the scotoma amount of the support elements contacting with an optical diaphragm can be reduced and the scuffing rate of the optical film group caused by adding cusps supporting elements is reduced.
Description
Technical field
The utility model refers to a kind of backlight module that is applicable to flat-panel screens especially relevant for a kind of backlight module.
Background technology
Present flat display apparatus is because in light weight, thin thickness, and institute takes up space little, so become the main flow of TV or display gradually.And LCD TV needs the inhomogeneity light source of tool to provide image to show, how with direct type backlight module as backlight.Known backlight module 100, as shown in Figures 1 and 2, it is bottom-lighting type back light module and comprises a framework 101, light source 102, one diffuser plates 103 of most the configurations that are parallel to each other and most the support components 104 with equal height.Wherein, have a gap between the bottom surface of diffuser plate 103 and framework 101, and light source 102 is arranged in this framework 101.In addition, as shown in Figure 2, have most support components 104 between diffuser plate 103 and the framework 101, with support diffuser plate 103 and keep diffuser plate 103 and framework 101 between the gap.
Yet, this known backlight module, when the backlight module size increased, the voltage endurance capability of its warp resistance was not high.Therefore, when being subjected to bigger deflection pressure, easily produce distortion.When being out of shape when the backlight module pressurized, and will be placed on the backlight module than the liquid crystal panel of big rigidity the time, liquid crystal panel just breaks easily and produces the visual dark line that can distinguish.And, can increase the density of the number or the increase support component of support component usually in order to increase the voltage endurance capability of backlight module.But such improvement method, though can improve compression resistance, and can be by the voltage-withstand test before dispatching from the factory.But the place that support component contacts with diffuser plate can produce dim spot.Moreover,, can make the number of dim spot increase, and then influence the quality that image shows, the method for real nonideal raising voltage endurance capability if support component number or density increase.Though someone proposes only to use tip formula support component, to reduce the size of dim spot, in fact, this kind method still can't reduce the number of dim spot.
Therefore, need the resistance to pressure that will have improvement at present badly, but can not increase the backlight module of dim spot number, to solve aforesaid problem.
The utility model content
Fundamental purpose of the present utility model is that a kind of backlight module is being provided, so that can improve the anchorage force of backlight module, reduces the dim spot number of support component and blooming piece set of contact, reduces the scratch probability of diffuser plate.
Another purpose of the present utility model is that a kind of backlight module is being provided, so that can produce the effect that multistage supports, and the pressure during with the opposing deflection, the voltage endurance capability of increase backlight module.
For achieving the above object, the utility model provides a kind of backlight module, comprising: a framework has the leg that a bottom reaches the extension that is made progress by the bottom side; Most support components are disposed on the bottom of framework, and these a little support components have different height, and wherein these a little support components are staggered; And a light source, be disposed on the bottom of framework and between these a little support components.
The support component of the utility model backlight module can have the support component of differing heights for several, with lower surface that is formed at framework and the support that optical diaphragm group is provided multistage.Wherein, these a little support components have differing heights, and the height of part support component equals the spacing of the bottom of optical diaphragm group and framework.In addition, partly the height of support component also can be less than the spacing of the bottom of optical diaphragm group and framework.The number of support component that the utility model backlight module has differing heights is unrestricted, is preferably the number of the number of the support component with maximum height more than or equal to the support component of other height.The shape of the utility model backlight module support component is unrestricted, and support component for example is tip tapered pole, tack tapered pole, cylinder or its combination.The utility model backlight module has the arrangement of the support component of different height and does not have special restriction, and the support component that is preferably differing heights is staggered.
The utility model backlight module optionally also comprises a binding member, is to be positioned at the bottom surface of these support components or the bottom of this framework, support component is fixed in the bottom of framework.The kind of aforesaid binding member is unrestricted, is preferably fastener, trip, screw, latch, viscose, devil's felt or its combination.The combination of aforesaid the utility model backlight module binding member and support component or framework is unrestricted, is preferably that binding member and support component are formed in one or binding member and framework are formed in one.The framework of the utility model backlight module also comprises a reflecting plate that is positioned at the lower surface of framework.
The light source of the utility model backlight module is unrestricted, is preferably fluorescent tube or light emitting diode.The fluorescent tube of aforesaid the utility model backlight module is unrestricted, is preferably straight shape or U-shaped fluorescent tube.The fluorescent tube of the utility model backlight module is arranged unrestricted, is preferably fluorescent tube and forms parallel arrangement.
Description of drawings
Fig. 1 is the stereographic map of known backlight module.
Fig. 2 is the cut-open view of known backlight module.
Fig. 3 a is the cut-open view of the backlight module of the utility model one embodiment.
Fig. 3 b is the cut-open view of the backlight module of the utility model one embodiment.
Fig. 4 is the cut-open view of the backlight module of another embodiment of the utility model.
Fig. 5 is the utility model cut-open view of the backlight module of an embodiment again.
Embodiment
Embodiment 1
See also Fig. 3 a, Fig. 3 a is the cut-open view of backlight module of an embodiment of the utility model backlight module.The utility model backlight module 300 comprises a framework 301, most light sources 302, most the support components 304,305 and 306 with differing heights, and an optical diaphragm group 303.Wherein, light source 302 can be the fluorescent tube of straight shape or U-shaped fluorescent tube or other Any shape, and optical diaphragm group 303 is a diffuser plate.In the present embodiment, framework 301 has the leg 311 of the extension that a bottom 312 and makes progress by bottom 312 sides.And light source 302, support component 304,305 and 306 and optical diaphragm group 303 all be arranged on the bottom 312 of framework 301, and light source 302 is between support component 304,305 and 306.In addition, optical diaphragm group 303 is disposed at the top of framework 301, and covers framework 301.
Shown in Fig. 3 a, the backlight module 300 of present embodiment has three kinds of support components 304,305 and 306 with differing heights, and these three kinds of support components are the tack tapered pole with similar shape.Wherein, support component 304 is distributed on the bottom 312 of framework 301, and has the highest height.In addition, the bottom of aforesaid each support component and have a binding member (figure do not show) to fix each support component 304,305 and 306 on the bottom 312 of framework 301.In the present embodiment, these 304,305 and 306 of support components with different height are to be staggered, and aforesaid binding member can be fastener, trip, screw, latch or their combination.
On the other hand, shown in Fig. 3 a, the height of the support component 304 just distance with 312 of the bottoms of optical diaphragm group 303 and framework 301 is identical, so that a specific distance is kept in 312 of the bottoms of optical diaphragm group 303 and framework 301.In addition, support component 305 has time high height, and the height that 306 of support components have than support component 305 is low height, but it highly still is higher than half of spacing of optical diaphragm group 303 and the bottom 312 of framework 301.Therefore, when optical diaphragm group 303 was not subjected to any pressure, support component 305 can't contact with optical diaphragm group 303 with support component 306, also can not produce any dim spot.But during pressure more than optical diaphragm group 303 is born a certain degree, when particularly the deflection pressure that bears of optical diaphragm group 303 raise, the support component 305 with time high height promptly can be used for support of optical diaphragm group 303.When optical diaphragm group 303 was born bigger pressure, the degree of flexibility of optical diaphragm group 303 was just more serious, and the support component 306 with minimum altitude just can be used for support of optical diaphragm group 303.Be noted that in the present embodiment, backlight module can have the support component of the height of any kind of, its support component is not only to have three kinds of differing heights, and they can have two or more different height.
In the present embodiment, light source 302 is arranged on the bottom 312 of framework 301 in parallel to each other, and each support component 304,305 and 306 is disposed at respectively between this light source 302.In addition, the bottom 312 of framework 301 can also comprise a reflecting plate (figure does not show), reflexes to optical diaphragm group 303 with the light that light source 302 is produced.
See also Fig. 3 b, when the backlight module 300 of present embodiment was subjected to the pressure of deflection, its optical diaphragm group 303 distortion were caved in and are contacted with the support component 305 with inferior high altitude.At this moment, support component 305 can provide second section support to resist this pressure.That is when optical diaphragm group 303 suffered deflection pressure, optical diaphragm group 303 and had time high support component 305 that auxiliary support is provided except the support component 304 that maximum height is arranged.But at ordinary times, because inferior high support component 305 contact optical diaphragm group 303 not, so the backlight module 300 of present embodiment can't produce dim spot because of light-shading effect.
And when the backlight module 300 of present embodiment was subjected to bigger deflection pressure, its optical diaphragm group 303 was out of shape more and is caved in, and contacts with the support component 306 with minimum altitude.At this moment, support component 306 can provide the 3rd section support to resist this pressure.That is when optical diaphragm group 303 suffered deflection pressure, optical diaphragm group 303 was except having aforesaid support component 304 and support component 305, and the support component 306 with minimum altitude also can provide auxiliary support.But, at ordinary times, because the contact optical diaphragm group 303 not of the support component 306 with minimum altitude, so the backlight module 300 of present embodiment can't produce dim spot because of light-shading effect.
The backlight module 400 of present embodiment is identical with the backlight module 300 of embodiment 1, but the backlight module 400 of present embodiment only comprises the support component 404 and 405 with two kinds of differing heights, as shown in Figure 4.In the present embodiment, framework 401 has the leg 411 of the extension that a bottom 412 and makes progress by bottom 412 sides.And light source 402, support component 404 and 405 and optical diaphragm group 403 all be arranged on the bottom 412 of framework 401, and light source 402 is between support component 404 and 405.In addition, optical diaphragm group 403 is disposed at the top of framework 401, and covers framework 401.In addition, the support component 404 with high height is the tip tapered pole, and the support component 405 with lower height then is the tack tapered pole.
As the backlight module 300 of embodiment 1, at ordinary times, because the contact optical diaphragm group 403 not of the support component 405 with lower height, so the backlight module 400 of present embodiment can't produce dim spot because of light-shading effect.But when the backlight module 400 of present embodiment was subjected to deflection pressure, its optical diaphragm group 403 distortion were caved in and are contacted with the support component 405 with lower height.At this moment, support component 405 just can provide second section support to resist this pressure.Anticipate promptly, when optical diaphragm group 403 suffered deflection pressure, optical diaphragm group 403 was except having aforesaid support component 404, and the support component 405 with lower height also can provide auxiliary support.
Embodiment 3
The backlight module 500 of present embodiment is identical with the backlight module 400 of embodiment 2, but the backlight module 500 of present embodiment also has additional a reflecting plate 510 on the bottom 512 of framework 501, reflex to optical diaphragm group 503 with the light that light source 502 is produced, as shown in Figure 5.In addition, in the backlight module 500 of present embodiment, framework 501 has the leg 511 of the extension that a bottom 512 and makes progress by bottom 512 sides.And light source 502, support component 504 and 505 and optical diaphragm group 503 all be arranged on the bottom 512 of framework 501, and light source 502 is between support component 504 and 505.In addition, optical diaphragm group 503 is disposed at the top of framework 501, and covers framework 501.In addition, the support component 504 with high height is the tip tapered pole, and the support component 505 with lower height then is the tack tapered pole.
As the backlight module 400 of embodiment 2, at ordinary times, because the contact optical diaphragm group 503 not of the support component 505 with lower height, so the backlight module 500 of present embodiment can't produce dim spot because of light-shading effect.But when the backlight module 500 of present embodiment was subjected to deflection pressure, its optical diaphragm group 503 just was out of shape and is caved in and contact with the support component 505 with lower height.At this moment, support component 505 just can provide second section support to resist this pressure.Anticipate promptly, when optical diaphragm group 503 suffered deflection pressure, optical diaphragm group 503 was except having aforesaid support component 504, and the support component 505 with lower height also can provide auxiliary support.
Backlight module of the present utility model utilizes the design of difference of height support component, can produce the effect that multistage supports, the pressure during with the opposing deflection, the voltage endurance capability of increase backlight module.And because the contact point of support component and diffuser plate does not increase,, still can reduce the dim spot number that support component contacts with diffuser plate, and reduce diffuser plate because of increasing the scratch probability of tip support component even improve compression resistance.
The foregoing description only is to give an example for convenience of description, and the interest field that the utility model is advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (10)
1. a backlight module is characterized in that, comprising:
One framework has the leg that a bottom reaches the extension that is made progress by this bottom side;
Most support components are disposed on this bottom of this framework, and those support components have different height, and wherein those support components are staggered;
And
One light source, this bottom that is arranged at this framework are gone up and between those support components.
2. backlight module as claimed in claim 1 is characterized in that it also comprises an optical diaphragm group, is disposed on this framework.
3. backlight module as claimed in claim 2 is characterized in that, wherein arbitrary those support component height equal the spacing of this bottom of this optical diaphragm group and this framework.
4. backlight module as claimed in claim 2 is characterized in that wherein the height of arbitrary those support components is less than or equal to the spacing of this bottom of this optical diaphragm group and this framework.
5. backlight module as claimed in claim 1 is characterized in that, wherein those support components are tip tapered pole, tack tapered pole, cylinder or its combination.
6. backlight module as claimed in claim 1 is characterized in that, wherein also comprises a binding member, is arranged at a bottom surface of each those support component, to be connected to this framework.
7. backlight module as claimed in claim 1 is characterized in that, wherein also comprises a binding member, is arranged at the bottom of this framework, to be connected to those support components.
8. backlight module as claimed in claim 6 is characterized in that, wherein this binding member is a fastener, a trip, a screw, a latch or its combination.
9. backlight module as claimed in claim 6 is characterized in that, wherein this binding member is one-body molded with those support components.
10. backlight module as claimed in claim 1 is characterized in that it also comprises a reflecting plate, and is located on this bottom of this framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201547209U CN201054060Y (en) | 2007-05-14 | 2007-05-14 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201547209U CN201054060Y (en) | 2007-05-14 | 2007-05-14 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201054060Y true CN201054060Y (en) | 2008-04-30 |
Family
ID=39393722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201547209U Expired - Fee Related CN201054060Y (en) | 2007-05-14 | 2007-05-14 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201054060Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953875A (en) * | 2014-04-18 | 2014-07-30 | 青岛海信电器股份有限公司 | Straight down type backlight module and display device |
| CN109613753A (en) * | 2018-12-28 | 2019-04-12 | 厦门天马微电子有限公司 | A kind of backlight module and electronic equipment |
| CN110045544A (en) * | 2019-04-02 | 2019-07-23 | 惠州市华星光电技术有限公司 | Backlight module and display device |
-
2007
- 2007-05-14 CN CNU2007201547209U patent/CN201054060Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953875A (en) * | 2014-04-18 | 2014-07-30 | 青岛海信电器股份有限公司 | Straight down type backlight module and display device |
| CN109613753A (en) * | 2018-12-28 | 2019-04-12 | 厦门天马微电子有限公司 | A kind of backlight module and electronic equipment |
| CN109613753B (en) * | 2018-12-28 | 2021-11-16 | 厦门天马微电子有限公司 | Backlight module and electronic equipment |
| CN110045544A (en) * | 2019-04-02 | 2019-07-23 | 惠州市华星光电技术有限公司 | Backlight module and display device |
| CN110045544B (en) * | 2019-04-02 | 2022-02-01 | 惠州市华星光电技术有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CPT Display Technology Shenzhen Ltd. Assignor: Chunghwa Picture Tubes Ltd. Contract fulfillment period: 2008.9.18 to 2013.9.18 Contract record no.: 2008990000657 Denomination of utility model: Driving circuit for backlight module and the display panel with the same Granted publication date: 20080430 License type: Exclusive license Record date: 20081010 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.18 TO 2013.9.18; CHANGE OF CONTRACT Name of requester: SHENZHEN HUAYING DISPLAY TECHNOLOGY CO., LTD. Effective date: 20081010 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: CPT Display Technology Shenzhen Ltd. Assignor: Chunghwa Picture Tubes Ltd. Contract record no.: 2008990000657 Date of cancellation: 20130802 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20150514 |
|
| EXPY | Termination of patent right or utility model |