CN204345537U - A kind of LED light guide plate - Google Patents
A kind of LED light guide plate Download PDFInfo
- Publication number
- CN204345537U CN204345537U CN201520028742.5U CN201520028742U CN204345537U CN 204345537 U CN204345537 U CN 204345537U CN 201520028742 U CN201520028742 U CN 201520028742U CN 204345537 U CN204345537 U CN 204345537U
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- structural
- guide plate
- micro
- light guide
- incidence surface
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Abstract
The utility model provides a kind of LED light guide plate, comprises transparent base and incidence surface, wherein, described incidence surface is arranged protruding micro-structural, and the density of this micro-structural is increased to center gradually by the edge of incidence surface.The amplification principle of the utility model application convex lens, the light diffusion that LED transmits by micro-structural, thus improvement or the firefly phenomenon before eliminating LED.Owing to being light compact district at the incidence surface center of light guide plate, therefore better diffusion can be played in the protruding micro-structural that center density of setting is large, and at the fringe region of incidence surface, LED light line density is little, what then protruding micro-structural was also arranged lacks relatively, density is little compared with center, while the arranging of this protruding micro-structural can play diffusion to light better, can also reduce cost of manufacture to a certain extent.This micro-structural can adopt the means of hot pressing or machining to complete, or adopts injection molded.
Description
Technical field
The utility model relates to technical field of LED illumination, especially a kind of LED light guide plate.
Background technology
Traditional LED lamp, mainly contains direct-injection type and side entering type two kinds of light-emitting modes.Direct-injection type LED lamp technique is simple, and usually do not need light guide plate, LED light source is array distribution in light fixture, and the light sent is through lampshade injection or directly penetrate.Due to the lighting angle of LED light source self, direct-injection type LED lamp easily produces dazzle.In order to solve the problem of dazzle, usually need to increase the distance bottom LED lamp and between scatter plate, to improve optical uniformity.But said method certainly will increase the thickness of LED lamp, product is comparatively heavy, and light utilization efficiency reduces.And side entering type light-emitting mode LED is arranged on light guide plate both sides, do not take thickness space, therefore, side entering type light-emitting mode is widely used, the application especially in ultrathin display.
But at present along with the appearance of narrow hem width television set, the light mixing distance before backlight LED lamp becomes very little, cause firefly phenomenon before LED because mixed light is insufficient.
Utility model content
The purpose of this utility model is to provide a kind of LED light guide plate, and solve in the LED of existing side entering type light-emitting mode, because the light mixing distance before LED is little, mixed light is insufficient, and the problem of firefly phenomenon before causing LED.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of LED light guide plate, comprises transparent base and incidence surface, wherein, described incidence surface is arranged protruding micro-structural.
Further, the density of described micro-structural is increased to center gradually by the edge of incidence surface.
Further, the shape of described micro-structural is dome-type, circular platform type, pyramid type or bar shaped fin.
Further, described micro-structural is dome-type, and when circular platform type or pyramid type, its diameter is within the scope of 1 ~ 150 μm; Preferably, diameter is at 20 ~ 100 μm; Best, 60 ~ 80 μm.
Further, when described micro-structural is bar shaped fin, its width is within the scope of 1 ~ 150 μm; Preferably, diameter is at 20 ~ 100 μm; Best, 60 ~ 80 μm.
LED light guide plate of the present utility model arranges micro-structural at its incidence surface, is the amplification principle of application convex lens, and LED is passed the light diffusion of coming by these micro-structurals, and light is mixed fully, thus improvement or the firefly phenomenon before eliminating LED.Owing to being light compact district at the incidence surface center of light guide plate, therefore better diffusion can be played in the protruding micro-structural that center density of setting is large, and at the fringe region of incidence surface, LED light line density is little, what then protruding micro-structural was also arranged lacks relatively, density is little compared with center, while the arranging of this protruding micro-structural can play diffusion to light better, can also reduce cost of manufacture to a certain extent.
This micro-structural can adopt the means of hot pressing or machining to complete, or adopts injection mold one-body molded.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the side-looking structural representation of the LED light guide plate of embodiment 1;
Fig. 2 is the side-looking structural representation of the LED light guide plate of embodiment 2;
Fig. 3 is the structural representation of the LED light guide plate of embodiment 3;
1, transparent base, 2, incidence surface, 3, protruding micro-structural.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, be clearly and completely described the technical solution of the utility model, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1
According to Fig. 1, the LED light guide plate of the present embodiment is described, comprises transparent base and incidence surface, wherein, described incidence surface is arranged protruding dome-type micro-structural, the diameter of this dome-type micro-structural is 60 ~ 80 μm, and the density of this dome-type micro-structural is increased to center gradually by the edge of incidence surface.
Dome-type micro-structural on the LED light guide plate of the present embodiment 1 adopts hot pressing means to be fixed on the incidence surface of light guide plate.
Embodiment 2
According to Fig. 2, the LED light guide plate of the present embodiment is described, comprise transparent base and incidence surface, wherein, described incidence surface is arranged protruding circular platform type micro-structural, the diameter of the bottom surface of this circular platform type micro-structural is 80 ~ 100 μm, and the density of this circular platform type micro-structural is increased to center gradually by the edge of incidence surface.
Circular platform type micro-structural on the LED light guide plate of the present embodiment 2 adopts hot pressing means to be fixed on the incidence surface of light guide plate.
Embodiment 3
According to Fig. 3, the LED light guide plate of the present embodiment is described, comprises transparent base and incidence surface, wherein, described incidence surface is arranged bar shaped fin, the width of this bar shaped fin is 20 ~ 60 μm, and the density of this bar shaped fin is increased to center gradually by the edge of incidence surface.
Circular platform type micro-structural on the LED light guide plate of the present embodiment 3 adopts injection molded, ensures molding structure.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.
Claims (9)
1. a LED light guide plate, comprises transparent base and incidence surface, it is characterized in that: described incidence surface is arranged protruding micro-structural.
2. a kind of LED light guide plate according to claim 1, is characterized in that: the density of described micro-structural is increased to center gradually by the edge of incidence surface.
3. a kind of LED light guide plate according to claim 1 and 2, is characterized in that: the shape of described micro-structural is dome-type, circular platform type, pyramid type or bar shaped fin.
4. a kind of LED light guide plate according to claim 3, it is characterized in that: described micro-structural is dome-type, when circular platform type or pyramid type, its diameter is within the scope of 1 ~ 150 μm.
5. a kind of LED light guide plate according to claim 4, is characterized in that: diameter is within the scope of 20 ~ 100 μm.
6. a kind of LED light guide plate according to claim 4, is characterized in that: diameter is within the scope of 60 ~ 80 μm.
7. a kind of LED light guide plate according to claim 3, it is characterized in that: when described micro-structural is bar shaped fin, its width is within the scope of 1 ~ 150 μm.
8. a kind of LED light guide plate according to claim 7, is characterized in that: width is within the scope of 20 ~ 100 μm.
9. a kind of LED light guide plate according to claim 7, is characterized in that: width is within the scope of 60 ~ 80 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028742.5U CN204345537U (en) | 2015-01-15 | 2015-01-15 | A kind of LED light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028742.5U CN204345537U (en) | 2015-01-15 | 2015-01-15 | A kind of LED light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204345537U true CN204345537U (en) | 2015-05-20 |
Family
ID=53228803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520028742.5U Expired - Fee Related CN204345537U (en) | 2015-01-15 | 2015-01-15 | A kind of LED light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204345537U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353441A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Light guide plate made of PMMA material and provided with light output surface with large round dot structures |
| CN105353442A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Light guide plate of PS material and with projection structures |
| CN105353440A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Light guide plate made of MS material and provided with light output surface with large round dot structures |
| CN105372746A (en) * | 2015-11-13 | 2016-03-02 | 重庆鑫翎创福光电科技股份有限公司 | PMMA light guide plate with prism structure |
| CN105467505A (en) * | 2016-01-05 | 2016-04-06 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
| CN114924344A (en) * | 2022-05-31 | 2022-08-19 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
-
2015
- 2015-01-15 CN CN201520028742.5U patent/CN204345537U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353441A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Light guide plate made of PMMA material and provided with light output surface with large round dot structures |
| CN105353442A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Light guide plate of PS material and with projection structures |
| CN105353440A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Light guide plate made of MS material and provided with light output surface with large round dot structures |
| CN105372746A (en) * | 2015-11-13 | 2016-03-02 | 重庆鑫翎创福光电科技股份有限公司 | PMMA light guide plate with prism structure |
| CN105467505A (en) * | 2016-01-05 | 2016-04-06 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
| CN114924344A (en) * | 2022-05-31 | 2022-08-19 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
| CN114924344B (en) * | 2022-05-31 | 2024-03-29 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20180115 |