CN201017141Y - Light source device of backlight module - Google Patents
Light source device of backlight module Download PDFInfo
- Publication number
- CN201017141Y CN201017141Y CNU200620175317XU CN200620175317U CN201017141Y CN 201017141 Y CN201017141 Y CN 201017141Y CN U200620175317X U CNU200620175317X U CN U200620175317XU CN 200620175317 U CN200620175317 U CN 200620175317U CN 201017141 Y CN201017141 Y CN 201017141Y
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- light
- emitting diode
- backlight module
- module
- guide plate
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Abstract
The utility model relates to a light source device of backlight module mainly comprising a LED module equipped at the end of a light guide plate; the LED module consisting of a plurality of LEDs and the neighboring LEDs are arranged with different heights or the intersection point of the largest angle formed by beams irradiated by two neighboring LEDs is between the light guide plate and the LED module; in this way, the problem that the backlight module habitually used represents obvious bright and dark areas is solved.
Description
Technical field
The light supply apparatus of the relevant a kind of backlight module of the utility model refers to that especially a kind of can effectively the solution commonly use backlight module and be easy to generate light supply apparatus bright, blanking bar district problem.
Background technology
Because advantages such as LCD has gently, thin, short, little are widely used in mobile computer, mobile phone; Modernized information equipment such as personal digital assistant, because of liquid crystal itself does not have the characteristics of luminescence, being required to be it provides backlight module to realize Presentation Function.
Known backlight module comprises light source and light guide plate, the incidence surface setting of the relative light guide plate of light source, and the transmission direction that this light-guide plate guides is sent light beam from light source converts line source or pointolite to the area source outgoing.Some sites that distribute, the bottom surface of this light guide plate in order to the total reflection condition of broken beam in the light guide plate internal transmission, and make its scattering improving the homogeneity of light guide plate outgoing beam, and then promote the overall performance of backlight module.
As shown in Figure 1, the backlight modular structure synoptic diagram of commonly using for general LCD, mainly the light-emitting diode (LED) module 20 by the plate end place that is arranged at light guide plate 10 is constituted, make the light beam of light-emitting diode (LED) module 20 go into light guide plate 10 inside via the plate end-fire of light guide plate 10, convert the directional light of light-emitting diode (LED) module 20 incidents to the plane vertical light and penetrate, and obtain due brightness expression effect.
Its light-emitting diode (LED) module 20 is made up of some light emitting diodes 21, because having certain emission angle, light emitting diode 21 is about 30 to 130 degree, and the side of these light guide plate 10 relative light emitting diodes 21 is the plane, the light beam that makes light emitting diode 21 send enters light guide plate 10 after this side refraction, its scattering angle further dwindles, maximum is about about 120 degree, the cross-point P of the adjacent light emitting diode in twos 21 light beam maximum angle that sends is fallen within on the light guide plate 10, thereby produce big blanking bar 11 at light guide plate 10 light incident sides, and then reduce the light beam utilization factor, influence backlight module and even adopt the briliancy and the light-emitting uniformity of the LCD of this backlight module.
So also occurring other on the market plants light conducting plate structure above-mentioned generation is bright, the problem in blanking bar district to overcome, as shown in Figure 2, this light guide plate 10 is provided with several projections 12 in the plane of incidence that corresponds to light emitting diode 21, after making the refraction action of light beam via each projection 12 of light emitting diode 21, has bigger dispersion angle to reduce blanking bar; Yet the mode that this kind separated Cassia tora, blanking bar district needs light guide plate is remake the time processing processing procedure to form projection, increases job sequence and also can increase fraction defective.
The utility model content
In view of this, the purpose of this utility model is promptly providing a kind of can effectively the solution to commonly use backlight module and be easy to generate light supply apparatus bright, blanking bar district problem.
In view of this, light supply apparatus of the present utility model mainly is made of the light-emitting diode (LED) module at the plate end place that is arranged at light guide plate; Wherein, this light-emitting diode (LED) module is made of several light emitting diodes, and adjacent light emitting diode in twos forms high infraversion malposition arrangement, and perhaps its adjacent light emitting diode in twos sends the cross-point of light beam maximum angle, falls between light guide plate and the light-emitting diode (LED) module.
The beneficial effects of the utility model are: can obtain a kind of can effectively the solution and commonly use backlight module and be easy to generate light supply apparatus bright, blanking bar district problem.
Description of drawings
Fig. 1 is first kind of structure cut-open view of commonly using backlight module;
Fig. 2 is first kind of structure cut-open view of commonly using backlight module;
Fig. 3 is a backlight modular structure cut-open view of the present utility model;
Fig. 4 is a backlight modular structure enlarged drawing of the present utility model;
Fig. 5 is another structure cut-open view of backlight module of the present utility model.
[figure number explanation]
11 blanking bars, 12 projections
20 light-emitting diode (LED) module sources, 21 light emitting diodes
30 flexible circuit boards, 40 fixtures
411 inclined-planes, 41 location divisions
50 paste agent
Embodiment
The light supply apparatus of the utility model backlight module, the light supply apparatus of its whole backlight module as shown in Figure 3, mainly the light-emitting diode (LED) module 20 by the plate end place that is arranged at light guide plate 10 is constituted, make the light beam of light-emitting diode (LED) module 20 go into light guide plate 10 inside via the plate end-fire of light guide plate 10, convert the directional light of light-emitting diode (LED) module 20 incidents to the plane vertical light and penetrate, and obtain due brightness expression effect.
Wherein, this light-emitting diode (LED) module 20 is made of several light emitting diodes 21, and adjacent light emitting diode in twos 21 forms high infraversion malposition arrangement, in Fig. 3 embodiment, each light emitting diode 21 is laid on the flexible circuit board 30, and this light-emitting diode (LED) module 20 and flexible circuit board 30 are positioned (this fixture can be the glue frame) on the fixture 40, and its fixture 40 forms the location division 41 that high infraversion malposition is arranged, and adjacent location division in twos 41 connects with inclined-plane 411.
During overall package, can be provided with prior to flexible circuit board 30 and 40 of fixtures and paste agent 50, as shown in Figure 4, flexible circuit board 30 can be assembled according to the high and low position of this location division 41 to be positioned on this fixture 40, and then when making each light emitting diode 21 be positioned corresponding location division 41, adjacent light emitting diode 21 in twos forms high infraversion malposition and arranges, and the light beam that sends when each light emitting diode 21 is when entering light guide plate 10, the cross-point P of the adjacent light emitting diode in twos 21 light beam maximum angle that sends, as shown in Figure 3, fall between light guide plate 10 and the light-emitting diode (LED) module 20, can effectively eliminate bright by this, the blanking bar district.
In addition, this light guide plate 10 can be flat structure near a side of light-emitting diode (LED) module 20, as shown in Figures 3 and 4, certainly can also form height laciniation as shown in Figure 5, each light emitting diode 21 is then arranged along with this light guide plate 10 also forms high infraversion malposition, can effectively eliminate bright, blanking bar district equally.
As mentioned above, the utility model provides the light supply apparatus of a preferable feasible backlight module, so offer the application of novel patent in accordance with the law; Above implementation and graphic shown in, being the utility model preferred embodiment, is not to limit to the utility model with this, be with, such as be similar to, duplicate with structure of the present utility model, device, feature etc., all should belong to of the present utility model founding within purpose and the claim.
Claims (7)
1. the light supply apparatus of a backlight module is provided with a light-emitting diode (LED) module at the plate end place of light guide plate; It is characterized in that:
This light-emitting diode (LED) module is made of several light emitting diodes, and adjacent light emitting diode in twos forms high infraversion malposition arrangement.
2. the light supply apparatus of backlight module according to claim 1, it is characterized in that, each light emitting diode is laid on the flexible circuit board, and this light-emitting diode (LED) module and flexible circuit board are positioned on the fixture, its fixture forms the location division that high infraversion malposition is arranged, and flexible circuit board is assembled according to this location division and is positioned on this fixture.
3. as the light supply apparatus of backlight module as described in the claim 2, it is characterized in that this fixture is the glue frame.
4. as the light supply apparatus of backlight module as described in the claim 2, it is characterized in that, further be provided with between this flexible circuit board and fixture and paste agent.
5. as the light supply apparatus of backlight module as described in the claim 2, it is characterized in that this adjacent location division in twos connects with the inclined-plane.
6. as the light supply apparatus of backlight module as described in the claim 2, it is characterized in that, this light guide plate near a side of light-emitting diode (LED) module be flat board structure.
7. as the light supply apparatus of backlight module as described in the claim 2, it is characterized in that this light guide plate forms the jagged structure of height near a side of light-emitting diode (LED) module, each light emitting diode forms high infraversion malposition and arranges along with light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620175317XU CN201017141Y (en) | 2006-12-18 | 2006-12-18 | Light source device of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620175317XU CN201017141Y (en) | 2006-12-18 | 2006-12-18 | Light source device of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017141Y true CN201017141Y (en) | 2008-02-06 |
Family
ID=39057637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620175317XU Expired - Fee Related CN201017141Y (en) | 2006-12-18 | 2006-12-18 | Light source device of backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017141Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551549B (en) * | 2008-04-03 | 2010-10-06 | 北京京东方光电科技有限公司 | Backlight of light-emitting diodes |
| CN101922660A (en) * | 2010-07-23 | 2010-12-22 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN101696780B (en) * | 2009-09-18 | 2011-11-09 | 友达光电股份有限公司 | Backlight module, plat panel display and design method of positioning element of flat panel display |
| CN101946119B (en) * | 2008-03-07 | 2012-07-25 | 夏普株式会社 | Light emitting module, backlight unit and liquid crystal display device |
| CN102620219A (en) * | 2012-04-18 | 2012-08-01 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102878483A (en) * | 2012-07-02 | 2013-01-16 | 友达光电股份有限公司 | Display device and backlight module thereof |
| CN103712127A (en) * | 2013-12-23 | 2014-04-09 | 京东方科技集团股份有限公司 | Light source assembly, backlight module and display device |
| CN103968300A (en) * | 2014-04-23 | 2014-08-06 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN104089217A (en) * | 2014-06-20 | 2014-10-08 | 北京京东方视讯科技有限公司 | Backlight source, backlight module and display device |
| CN106908994A (en) * | 2017-03-13 | 2017-06-30 | 合肥京东方光电科技有限公司 | LED light bar and the backlight module with the LED light bar |
-
2006
- 2006-12-18 CN CNU200620175317XU patent/CN201017141Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946119B (en) * | 2008-03-07 | 2012-07-25 | 夏普株式会社 | Light emitting module, backlight unit and liquid crystal display device |
| CN101551549B (en) * | 2008-04-03 | 2010-10-06 | 北京京东方光电科技有限公司 | Backlight of light-emitting diodes |
| CN101696780B (en) * | 2009-09-18 | 2011-11-09 | 友达光电股份有限公司 | Backlight module, plat panel display and design method of positioning element of flat panel display |
| CN101922660A (en) * | 2010-07-23 | 2010-12-22 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN102620219B (en) * | 2012-04-18 | 2013-11-20 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102620219A (en) * | 2012-04-18 | 2012-08-01 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102878483A (en) * | 2012-07-02 | 2013-01-16 | 友达光电股份有限公司 | Display device and backlight module thereof |
| CN102878483B (en) * | 2012-07-02 | 2015-09-02 | 友达光电股份有限公司 | Display device and backlight module thereof |
| CN103712127A (en) * | 2013-12-23 | 2014-04-09 | 京东方科技集团股份有限公司 | Light source assembly, backlight module and display device |
| CN103968300A (en) * | 2014-04-23 | 2014-08-06 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN104089217A (en) * | 2014-06-20 | 2014-10-08 | 北京京东方视讯科技有限公司 | Backlight source, backlight module and display device |
| US9632232B2 (en) | 2014-06-20 | 2017-04-25 | Boe Technology Group Co., Ltd. | Backlight, backlight module and display device |
| CN106908994A (en) * | 2017-03-13 | 2017-06-30 | 合肥京东方光电科技有限公司 | LED light bar and the backlight module with the LED light bar |
| US10969539B2 (en) | 2017-03-13 | 2021-04-06 | Boe Technology Group Co., Ltd. | LED light strip and backlight module having the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |