CN202916457U - A light guide plate, a LED plane light source, and a display panel - Google Patents
A light guide plate, a LED plane light source, and a display panel Download PDFInfo
- Publication number
- CN202916457U CN202916457U CN 201220647455 CN201220647455U CN202916457U CN 202916457 U CN202916457 U CN 202916457U CN 201220647455 CN201220647455 CN 201220647455 CN 201220647455 U CN201220647455 U CN 201220647455U CN 202916457 U CN202916457 U CN 202916457U
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- guide plate
- light guide
- light source
- groove
- light
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Abstract
The utility model belongs to the technical field of illumination and discloses a light guide plate, a LED plane light source, and a display panel. One end of the emitting surface of the light guide plate is aligned to or extended out of one end of the bottom surface of the light guide plate, the one end of the emitting surface and the one end of the bottom surface corresponding to side surfaces of the light guide plate. When multiple light guide plates are spliced, no illumination blind area is present. Grooves are disposed on the side surfaces of the light guide plate. On each groove, an incident plane is disposed at a position corresponding to the bottom surface. Therefore, incident light is guaranteed to be uniformly emitted out after suffering from diffusion effect of the light guide plate. On each groove, a reflection plane is disposed at a position corresponding to the emitting surface. Therefore, light is emitted from the emitting surface of the light guide plate in order to increase light efficiency. The light source assemblies of the LED plane light source of the light guide plate are disposed in the grooves of the light guide plate so that seamless splicing of luminescence is achieved and the display quality of the display panel used the LED plane light source as a backlight source is increased.
Description
Technical field
The utility model relates to lighting technical field, particularly relates to a kind of light guide plate, LED planar light source and display panel.
Background technology
Led light source have use low-tension supply, power consumption less, applicability is strong, stability is high, the response time is short, environmentally safe, the advantage such as multicolor luminous.The LED planar light source generally comprises light source frame, light guide plate assembly, driving power, installation connecting element and light source etc.According to the position of light source, the LED planar light source is divided into straight-down negative planar light source and side-light type planar light source.Wherein, the side-light type planar light source is light inlet from the side, the thickness of planar light source can be done thinly, satisfies the demand of product thinning.But the light source frame of side-light type planar light source is larger, causes in the problem of carrying out existing when a plurality of light sources splice lighting blind zone in order to increase the field of illumination.
The utility model content
The technical matters that (one) will solve
The technical problems to be solved in the utility model provides a kind of LED planar light source and light guide plate thereof, so that a plurality of light source is realized full-luminous seamless spliced doing when splicing.
The utility model also provides a kind of display panel, and the backlight of this display panel adopts above-mentioned LED planar light source, and realizing when doing the large scale display panel, a plurality of light sources full-luminous seamless spliced improved display quality.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of light guide plate, comprise side, the bottom surface that links to each other with the side and the exit facet relative with the bottom surface, be provided with diffusion particle in the described light guide plate, wherein, the exit facet of described light guide plate is held neat or exit facet corresponding to an end of side and bottom surface level with both hands corresponding to one of side and is stretched out with respect to the end of bottom surface corresponding to the side corresponding to an end of side; Have groove on the side of described light guide plate, described groove is provided with reflecting surface corresponding to the position of exit facet, and described groove is provided with the plane of incidence corresponding to the position of bottom surface.
Aforesaid light guide plate preferably, is provided with reflector or applies reflector layer on the described reflecting surface.
Aforesaid light guide plate is characterized in that, described groove shapes is V-shaped or trapezoidal.
Aforesaid light guide plate, preferably, the leaded light site that dredged at close two ends in the middle of described bottom surface of light guide plate was distributed with.
The utility model also provides a kind of LED planar light source, comprise light source assembly, backboard and reflection configuration, wherein, described LED planar light source also comprises aforesaid light guide plate, described light source module is fixed in the light guide plate groove, and the corresponding plane of incidence of the incident direction of LED lamp, described reflection configuration is between described backboard and light guide plate.
Aforesaid LED planar light source preferably, also comprises the diffuser plate that is arranged on described light guide plate top, and described diffuser plate is fixed on the sidewall section of described backboard by optical cement.
Aforesaid LED planar light source, preferably, described reflection configuration is reflecting plate or is coated in reflection horizon on the described backboard.
Aforesaid LED planar light source, preferably, the wiring board of described light source assembly is fixed on by fixture on the reflecting surface of described light guide plate, and the light of the LED lamp of described light source assembly is injected in the described light guide plate by the plane of incidence of described light guide plate.
Aforesaid LED planar light source, preferably, described fixture is fixed on by optical cement on the reflecting surface of described light guide plate,
Simultaneously, the utility model also provides a kind of display panel, it is characterized in that, the backlight of described display panel adopts aforesaid LED planar light source.
(3) beneficial effect
Light guide plate provided by the utility model, LED planar light source and display panel, wherein the exit facet of light guide plate is held neat or exit facet corresponding to an end of side and bottom surface level with both hands corresponding to one of side and is stretched out with respect to the end of bottom surface corresponding to the side corresponding to an end of side, and has groove on the side of light guide plate, groove is provided with the plane of incidence corresponding to the position of bottom surface, when carrying out the splicing of a plurality of light guide plate, can not there be lighting blind zone, and have guaranteed evenly to penetrate again after incident ray is through the diffusion of light guide plate and scattering process.Corresponding to the position of exit facet reflecting surface is set at groove so that light when penetrating all the exit facet from light guide plate penetrate, improve light efficient.Adopt the LED planar light source of this light guide plate light source assembly to be arranged in the groove of light guide plate, in order to increase the field of illumination, when carrying out the splicing of a plurality of light sources, can realize full-luminous seamless spliced, can there be lighting blind zone, improves with the display quality of this LED planar light source as the display panel of backlight.
Description of drawings
Fig. 1 is the cut-open view of LED planar light source among the utility model embodiment;
Fig. 2 is the light path schematic diagram one of LED planar light source among the utility model embodiment;
Fig. 3 is the light path schematic diagram two of LED planar light source among the utility model embodiment;
Wherein, 1: backboard; 2: reflection configuration; 3: light guide plate; 4: diffuser plate; 5: light source assembly; 51: wiring board; 52:LED lamp group; 6: groove; 7: reflecting surface; 8: the leaded light site; 9: bulge-structure; 10: fixture; 11: the plane of incidence.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Need to prove, in the following content about the statement of position term, as: " on ", D score, " end ", just for convenience, be not a kind of restriction.
Embodiment one
As shown in Figure 1-Figure 3, light guide plate 3 in the utility model comprises side, the bottom surface that links to each other with the side and the exit facet (in the present embodiment light from exit facet penetrate) relative with the bottom surface, be provided with diffusion particle in the light guide plate 3, so that light is evenly distributed in light guide plate 3, wherein, the exit facet of light guide plate 3 is held neat or exit facet corresponding to an end of side and bottom surface level with both hands corresponding to one of side and is stretched out with respect to the end of bottom surface corresponding to the side corresponding to an end of side, can not have lighting blind zone when carrying out a plurality of light guide plate 3 splicing; Have groove 6 on the side of light guide plate 3, and be provided with reflecting surface 7 at groove 6 corresponding to the position of exit facet so that during beam projecting all the exit facet from light guide plate 3 penetrate, improve light efficient; Simultaneously, also be provided with in the plane of incidence 11(the present embodiment light at groove 6 corresponding to the position of bottom surface and inject the light guide plate 3 from the plane of incidence 11) so that incident ray is fully through evenly penetrating after the diffusion of light guide plate 3 again.
On the reflecting surface 7 in the present embodiment reflector can be set, also can apply reflector layer, be used for reflection ray, prevent that emergent ray from penetrating from groove 6.
Wherein, groove 6 has two end faces at least, and one of them is as reflecting surface 7, and another is as the plane of incidence 11, is shaped as V-type (as shown in Figure 2) or trapezoidal (as shown in Figure 3) such as: groove 6.
For the distribution of light in the further uniform light guide plate 3, can be on the bottom surface of light guide plate 3 distribution leaded light site 8.Because the plane of incidence 11 of light is positioned on the side of light guide plate 3, the distribution that dredged at close two ends in the middle of preferred leaded light site 8 was in the bottom surface of light guide plate 3.
Light guide plate provided by the utility model comprises side, the bottom surface that links to each other with the side and the exit facet relative with the bottom surface, be provided with diffusion particle in the light guide plate, wherein, the exit facet of light guide plate is held neat or exit facet corresponding to an end of side and bottom surface level with both hands corresponding to one of side and is stretched out with respect to the end of bottom surface corresponding to the side corresponding to an end of side, can not have lighting blind zone when carrying out a plurality of light guide plate splicing.And have groove on the side of light guide plate, groove is provided with the plane of incidence corresponding to the position of bottom surface, guarantees that incident ray is through evenly penetrating after the diffusion of light guide plate again.Corresponding to the position of exit facet reflecting surface is set at groove so that light when penetrating all the exit facet from light guide plate penetrate, improve light efficient.
Embodiment two
Figure 1 shows that the cut-open view of LED planar light source among the utility model embodiment.As shown in Figure 1, LED planar light source among the utility model embodiment comprises light source assembly 5, backboard 1 and reflection configuration 2, also comprise the light guide plate 3 among the embodiment one, wherein, reflection configuration is between backboard 1 and light guide plate 3, and light source assembly 5 is fixed in the groove 6 of light guide plate 3 by fixture 10.In order to increase the field of illumination, when carrying out the splicing of a plurality of light sources, can realize full-luminous seamless splicedly, can there be lighting blind zone.
Wherein, reflection configuration 2 can be reflecting plate, also can be for being coated in the reflection horizon on the backboard 1.
Can be fixed on the wiring board 51 of light source assembly 5 on the reflecting surface 7 of light guide plate 3 grooves 6 by fixture 10 in the present embodiment, as shown in Figures 2 and 3, preferred fixture 10 is fixed on the reflecting surface 7 of light guide plate 3 by optical cement, because light source assembly 5 is very light and handy, optical cement not only can provide enough constant intensities, has also simplified the structure of light source.The light of the LED lamp 52 of light source assembly 5 is then injected in the light guide plate 3 by the plane of incidence 11 of light guide plate 3, again enter in the light guide plate 3 after the reflection of the leaded light site 8 on part light process light guide plate 3 bottom surfaces and the scattering process, part light passes light guide plate 3 bottom surfaces and again injects in the light guide plate 3 through after the reflex of reflection configuration 2, then in light guide plate 3 after the reflex through the reflecting surface 7 of the diffusion of diffusion ion and groove 6, penetrate from the exit facet of light guide plate 3.
The side of the light guide plate of LED planar light source provided by the utility model has groove, and light source assembly is fixed in the groove of light guide plate, in order to increase the field of illumination, when carrying out the splicing of a plurality of light sources, can realize full-luminous seamless spliced.
Embodiment three
The utility model also provides a kind of display panel, and the backlight of this display panel adopts the LED planar light source among the embodiment two.When doing large-sized display panel, adopt this LED planar light source can realize the full-luminous seamless spliced of a plurality of light sources, improve the display quality of display panel.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (10)
1. a light guide plate comprises side, the bottom surface that links to each other with the side and the exit facet relative with the bottom surface, it is characterized in that, is provided with diffusion particle in the described light guide plate; The exit facet of described light guide plate is held neat or exit facet corresponding to an end of side and bottom surface level with both hands corresponding to one of side and is stretched out with respect to the end of bottom surface corresponding to the side corresponding to an end of side; Have groove on the side of described light guide plate, described groove is provided with reflecting surface corresponding to the position of exit facet, and described groove is provided with the plane of incidence corresponding to the position of bottom surface.
2. light guide plate according to claim 1 is characterized in that, is provided with reflector on the described reflecting surface or applies reflector layer.
3. light guide plate according to claim 1 and 2 is characterized in that, described groove cross section is shaped as V-arrangement, and described V-type groove is reflecting surface corresponding to the plane of exit facet, and described V-type groove is the plane of incidence corresponding to the position of bottom surface.
4. light guide plate according to claim 1 and 2 is characterized in that, described groove cross section is shaped as trapezoidal, and described trapezoidal groove is reflecting surface corresponding to the plane of exit facet, and described trapezoidal type groove is the plane of incidence corresponding to the position of bottom surface.
5. light guide plate according to claim 1 and 2 is characterized in that, the leaded light site that dredged at close two ends in the middle of described bottom surface of light guide plate was distributed with.
6. LED planar light source, comprise light source assembly, backboard and reflection configuration, it is characterized in that, described LED planar light source also comprises the arbitrary described light guide plate of claim 1-5, described light source module is fixed in the light guide plate groove, and the corresponding plane of incidence of the incident direction of LED lamp, described reflection configuration is between described backboard and light guide plate.
7. LED planar light source according to claim 6 is characterized in that, also comprises the diffuser plate that is arranged on described light guide plate top, and described diffuser plate is fixed on the sidewall of described backboard by optical cement.
8. LED planar light source according to claim 6 is characterized in that, described reflection configuration is reflecting plate or is coated in reflection horizon on the described backboard.
9. LED planar light source according to claim 6 is characterized in that, the wiring board of described light source assembly is fixed on the reflecting surface of described light guide plate, and the light of the LED lamp of described light source assembly is injected in the described light guide plate by the plane of incidence of described light guide plate.
10. a display panel is characterized in that, the backlight of described display panel adopts the arbitrary described LED planar light source of claim 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647455 CN202916457U (en) | 2012-11-29 | 2012-11-29 | A light guide plate, a LED plane light source, and a display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647455 CN202916457U (en) | 2012-11-29 | 2012-11-29 | A light guide plate, a LED plane light source, and a display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202916457U true CN202916457U (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647455 Expired - Lifetime CN202916457U (en) | 2012-11-29 | 2012-11-29 | A light guide plate, a LED plane light source, and a display panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN202916457U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456425A (en) * | 2013-09-13 | 2015-03-25 | 扬升照明股份有限公司 | Planar light source |
| CN104503140A (en) * | 2014-12-31 | 2015-04-08 | 京东方科技集团股份有限公司 | Display device |
| WO2015109759A1 (en) * | 2014-01-21 | 2015-07-30 | 京东方科技集团股份有限公司 | Backlight source and display device |
| US20160187559A1 (en) * | 2014-12-31 | 2016-06-30 | Boe Technology Group Co., Ltd. | Display device |
| WO2018014308A1 (en) * | 2016-07-21 | 2018-01-25 | 周肇梅 | Side-type backlight module with trapezoidal incident light |
| WO2018014310A1 (en) * | 2016-07-21 | 2018-01-25 | 周肇梅 | Backlight source assembly of liquid crystal display |
| CN108152878A (en) * | 2017-12-28 | 2018-06-12 | 重庆市中光电显示技术有限公司 | Side backlight type backlight module |
| CN109196273A (en) * | 2016-05-12 | 2019-01-11 | 亮锐控股有限公司 | Lighting arrangements with light guide |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
| CN114624811A (en) * | 2022-05-17 | 2022-06-14 | 深圳市北泰显示技术有限公司 | Production method of display screen backlight module |
-
2012
- 2012-11-29 CN CN 201220647455 patent/CN202916457U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456425A (en) * | 2013-09-13 | 2015-03-25 | 扬升照明股份有限公司 | Planar light source |
| WO2015109759A1 (en) * | 2014-01-21 | 2015-07-30 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN104503140A (en) * | 2014-12-31 | 2015-04-08 | 京东方科技集团股份有限公司 | Display device |
| US20160187559A1 (en) * | 2014-12-31 | 2016-06-30 | Boe Technology Group Co., Ltd. | Display device |
| WO2016107097A1 (en) * | 2014-12-31 | 2016-07-07 | 京东方科技集团股份有限公司 | Display device |
| CN109196273A (en) * | 2016-05-12 | 2019-01-11 | 亮锐控股有限公司 | Lighting arrangements with light guide |
| WO2018014308A1 (en) * | 2016-07-21 | 2018-01-25 | 周肇梅 | Side-type backlight module with trapezoidal incident light |
| WO2018014310A1 (en) * | 2016-07-21 | 2018-01-25 | 周肇梅 | Backlight source assembly of liquid crystal display |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
| CN108152878A (en) * | 2017-12-28 | 2018-06-12 | 重庆市中光电显示技术有限公司 | Side backlight type backlight module |
| CN114624811A (en) * | 2022-05-17 | 2022-06-14 | 深圳市北泰显示技术有限公司 | Production method of display screen backlight module |
| CN114624811B (en) * | 2022-05-17 | 2022-08-16 | 深圳市北泰显示技术有限公司 | Production method of display screen backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
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| CX01 | Expiry of patent term |