CN2596387Y - Light guide plate structure - Google Patents
Light guide plate structure Download PDFInfo
- Publication number
- CN2596387Y CN2596387Y CN03200375U CN03200375U CN2596387Y CN 2596387 Y CN2596387 Y CN 2596387Y CN 03200375 U CN03200375 U CN 03200375U CN 03200375 U CN03200375 U CN 03200375U CN 2596387 Y CN2596387 Y CN 2596387Y
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- China
- Prior art keywords
- potholes
- guide plate
- light guide
- led
- light
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Abstract
The utility model relates to a light guide plate structure, particularly a light guide plate utilizing an LED as an incident light source. The light guide plate structure of the utility model is provided with a plurality of concave holes on the light guide plate; the plurality of concave holes penetrate or do not penetrate the light guide plate; at least one LED is matched to as an incident luminous source, and is arranged at the side face of the light guide plate; the side face is a front end side face or an aside side face, wherein, when at least one LED incident light source is arranged at the front face of the front end of the light guide plate to provide the forward light source, the plurality of concave holes are arrayed and arranged at right front of at least one LED incident point; a plurality of concave holes of a team group are respectively arranged in front of every LED incident point; the plurality of concave holes of every team group have the arranged mode that the forward direction of every LED incident point is taken as a middle line which is provided with at least one concave hole; the plurality of concave holes are in symmetrical arrangement by taking the middle line as a center; the arranged mode can also be asymmetrical arrangement or random number arrangement.
Description
Technical field
The utility model is a kind of light conducting plate structure, be meant the light guide plate of a kind of LED of utilization especially for incident light source, this light guide plate is provided with a plurality of potholes, utilize the characteristic of these a plurality of potholes with light refraction or total reflection, make light guide plate produce more uniform in-plane scattering light source, improve the planar light source quality that light guide plate is applied to backlight module or front optical module.
Background technology
Along with the computerized trend of household appliances, display wants light in weight, size will approach in order to meet, the width of cloth penetrate will be low etc. demand, have that size is frivolous, the LCD (LCD) of high resolving power, low radiation, low power consumption, because its manufacturing cost descends gradually, price is tending towards reasonable, accepted extensively by manufacturer and consumer in recent years, become the main flow of monitor market.
Yet, liquid crystal itself is not luminous, so LCD (LCD) must be by external light source so that enough luminous energy to be provided, as backlight module ... Deng, the liquid crystal panel trailing flank that makes LCD (LCD) provides liquid crystal panel to have enough brightness under the suitable radiation of external light source.But generally speaking, light guide plate is the planar light source source of backlight module, uses LED to have the characteristic of power saving as the light guide plate of light emitting source, yet the shortcoming during its enforcement is as follows:
(a) shown in Figure 1A, B, commonly use case one, LED2 is the high light source of a light intensity directive property, the light of its emission is concentrated and is pointed in the predetermined angle in its place ahead, when LED forward entrance light guide plate 3, the bright band 31 that the light of its concentrated angle overlaps, dark region 32 then takes place in its light not zone of process, causes the unequal phenomenon of planar light source of light guide plate 3.
(b) shown in Fig. 2 A, B, commonly use case two, when the LED2 side direction is injected light guide plate 4, light enters via refraction and enters light guide plate 4 again, the light angle of refraction is defined, the planar light source of its generation is also unequal, repeat the more part of light and produce bright band 41, make the LED2 light source fail to give full play to, cause the waste of luminous energy.
(c) another kind of is the light guide plate 5 of light source with LED2, commonly uses case three shown in Fig. 3 A, B, its in light guide plate 5 the place aheads or the side group establish a light source board 6, this light guide plate 5 is separated with light source board 6 and is made assembling, program is more numerous, the cost of manufacture height.
Summary of the invention
Fundamental purpose of the present utility model is, a kind of light conducting plate structure is provided, this light guide plate is provided with a plurality of potholes, by of incident ray generation refraction or the total reflection of these a plurality of potholes with LED, destroy the light intensity directive property of led light source and increase dispersion angle, can reduce the generation of dark region or bright band, make light guide plate produce more uniform in-plane scattering light source.
Of the present utility model time a purpose is that a kind of light conducting plate structure is provided, and it is to utilize a plurality of potholes that are provided with on the light guide plate, makes the incident ray of LED fully produce the modulation function of refraction or total reflection, reduces the loss of luminous energy, strengthens the operation efficiency of luminous energy.
A purpose more of the present utility model is, a kind of light conducting plate structure is provided, and it is leading flank or the beside that led light source directly is mounted on light guide plate, need not to assemble in addition light source board, and manufacturing course is simple and easy, and simplified assembly effectively reduces cost of manufacture.
The utility model is a kind of light conducting plate structure, is meant the light guide plate of a kind of LED of utilization for incident light source especially; Light conducting plate structure of the present utility model, this light guide plate is provided with a plurality of potholes, and these a plurality of potholes run through or do not penetrate light guide plate, and cooperating at least one LED is the incident light emitting source, this at least one LED is arranged at the side of light guide plate, and this side is front end side or side, next door; Wherein, when the front end front that at least one LED incident light source is arranged at light guide plate provides the forward light source, these a plurality of potholes are arranged the dead ahead that is arranged at least one LED incidence point, each LED incidence point the place ahead is arranged with a plurality of potholes of a cohort respectively, the arrangement mode of a plurality of potholes of each cohort is to be center line with each LED incidence point forward, this center line is provided with a pothole at least, and be that the center becomes a symmetry to arrange with the center line, this arrangement mode can also be that asymmetric geometry or random number are arranged; When the side, next door that at least one LED incident light source is arranged at light guide plate provides the side direction light source, these a plurality of potholes become wire ground to arrange the next door that is arranged at least one LED incidence point, a plurality of pothole summarys that this wire is arranged are separated into two zones with light guide plate, make this at least one LED be positioned at the less zone of area.
That is to say that the utility model provides a kind of light conducting plate structure, it is characterized in that this light guide plate is provided with a plurality of potholes, cooperating at least one LED is the incident light emitting source, and this at least one LED is arranged at the side of light guide plate; During enforcement, the light that this at least one LED launched enters light guide plate, when touching a plurality of pothole outer rim, light produces refraction or total reflection phenomenon, destroy the light intensity directive property of led light source and increase and distribute angle, reduce the generation of dark region or bright band, make light guide plate produce more uniform in-plane scattering light source.These a plurality of potholes are arranged the dead ahead that is arranged at least one LED incidence point, each LED incidence point the place ahead is arranged with a plurality of potholes of a cohort respectively, the arrangement mode of a plurality of potholes of each cohort is to be center line with each LED incidence point forward, this center line is provided with a pothole at least, and is the one symmetry arrangement of center one-tenth with the center line; This at least one LED is the incident light emitting source, and LED is arranged at the front end side of light guide plate, and the forward light source is provided.These a plurality of potholes run through light guide plate.These a plurality of potholes can not penetrate light guide plate yet.The arrangement mode of a plurality of potholes of this each cohort generally is a semi arch symmetric offset spread.Its outward appearance of the arrangement mode of a plurality of potholes of this each cohort can generally be the symmetric offset spread of a rectangle also.The arrangement mode of a plurality of potholes of this each cohort also can be asymmetric geometry.The arrangement mode of a plurality of potholes of this each cohort also can be random number and arranges.
These a plurality of potholes also can become wire ground to arrange the next door that is arranged at least one LED incidence point, and a plurality of pothole summarys that this wire is arranged are separated into two zones with light guide plate, make this at least one LED be positioned at the less zone of area; This at least one LED is arranged at the side, next door of light guide plate, and the side direction light source is provided; During enforcement, the light that this at least one LED launched enters light guide plate by the side, next door, in the zonule that a plurality of pothole separated that light is arranged by wire in light guide plate, touch a plurality of pothole outer rims refraction or total reflection fully, change the conduction orientation of light, enter the big zone of light guide plate again, destroy the light intensity directive property of led light source and uniform, make light guide plate produce more uniform in-plane scattering light source in the light guide plate conducted inside.
The wire of these a plurality of potholes is arranged as linearity.The wire of these a plurality of potholes is arranged and also be can be the curved arc shape.The wire of these a plurality of potholes is arranged and also be can be symmetrical wire arrangement.The wire of these a plurality of potholes is arranged and also be can be asymmetric wire arrangement.The wire of these a plurality of potholes is arranged the wire that also can be non-geometry linear and is arranged.
The light conducting plate structure that the utility model proposes, this light guide plate is provided with a plurality of potholes, these a plurality of potholes are arranged at ejaculation light the place ahead of LED, make LED light get fully effectively refraction or total reflection, and light guide plate makes full use of led light source and produces even planar light source.
For disclosing the purpose of this utility model, feature and effect in detail, now by following preferable specific embodiment, conjunction with figs., to the utility model be described in detail as after.
Description of drawings
Figure 1A, B are the structural representations of commonly using case one, wherein show the path and the distribution of LED incident ray;
Fig. 2 A, B are the structural representations of commonly using case two, wherein show the path and the distribution of LED incident ray;
Fig. 3 A, B are the structural representations of commonly using case three, wherein show the path and the distribution of LED incident ray;
Fig. 4 A, B are the synoptic diagram that hardens backlight of the forward light source of the utility model embodiment, wherein show the path and the distribution of LED incident ray;
Fig. 5 A, B are the backlight structural representations of the forward light source of the utility model embodiment two, wherein show the path and the distribution of LED incident ray;
Fig. 6 A, B are the backlight structural representations of the side direction light source of the utility model embodiment three, wherein show the path and the distribution of LED incident ray;
Fig. 7 A, B are the backlight structural representations of the side direction light source of the utility model embodiment four, wherein show the path and the distribution of LED incident ray.Among the figure
1 backlight
10 potholes
2 LED
3 backlight
31 bright bands
32 dark region
4 backlight
41 bright bands
5 backlight
6 light source boards
Embodiment
Shown in Fig. 4 A, the utility model is a kind of light conducting plate structure, and it includes a light guide plate 1 and at least one LED2; Wherein:
This light guide plate 1 is provided with a plurality of potholes 10, these a plurality of potholes 10 run through or do not penetrate light guide plate 1, these a plurality of potholes 10 are arranged the dead ahead that is arranged at least one LED2 incidence point, each LED2 incidence point the place ahead is arranged with a plurality of potholes 10 of a cohort respectively, the arrangement mode of a plurality of potholes 10 of each cohort is to be center line with each LED2 incidence point forward, this center line is provided with a pothole 10 at least, and be that the center becomes a symmetry to arrange with the center line, a plurality of potholes 10 arrangement modes of each cohort of present embodiment generally are a semi arch symmetric offset spread.
This at least one LED2 is the incident light emitting source, and the front end side that LED2 is arranged at light guide plate 1 provides the forward light source.
During enforcement, as Fig. 4 B, the light that this at least one LED2 launched enters light guide plate 1, when touching a plurality of pothole 10 outer rims, light produces refraction or total reflection phenomenon, change the conduction orientation of light, make the light intensity directive property height and the little LED2 light source of lighting angle that are mounted on light guide plate 1, be able to produce refraction or total reflection by these a plurality of potholes 10, destroy the light intensity directive property of LED2 light source and increase and distribute angle, can reduce the generation of dark region or bright band, make light guide plate 1 produce more uniform in-plane scattering light source.
With reference to figure 5A, be to be the utility model embodiment two, wherein, this at least one LED2 is same as Fig. 4, and the front end front that LED2 is arranged at light guide plate 1 provides the forward light source; Wherein, its outward appearance of arrangement mode of a plurality of potholes 10 of this each cohort generally is the symmetric offset spread of rectangle.
The enforcement effect of embodiment two shown in Fig. 5 B, is analogous to aforesaid embodiment Fig. 4 B.
Among previous embodiment and the embodiment two, the arrangement mode of a plurality of potholes 10 of this each cohort can also be asymmetric geometry or random number arrangement.
With reference to figure 6A, be the utility model embodiment three, it is light guide plate 1 structure for the side direction light source, wherein:
This light guide plate 1 is provided with a plurality of potholes 10, these a plurality of potholes 10 run through or do not penetrate light guide plate 1,10 one-tenth wire of these a plurality of potholes are arranged at the next door of at least one LED2 incidence point with arranging, a plurality of potholes 10 summarys that this wire is arranged are separated into two zones with light guide plate, make this at least one LED be positioned at the less zone of area; In the present embodiment, the wire of these a plurality of potholes 10 shape that is arranged in a straight line.
This at least one LED2 is arranged at the side, next door of light guide plate 1 and near the place ahead, provides the side direction light source.
During enforcement, as Fig. 6 B, the light that this at least one LED2 launched enters light guide plate 1 by the side, next door, in the zonule that a plurality of potholes 10 that light is arranged by wire in light guide plate 1 are separated, touch a plurality of pothole 10 outer rims refraction or total reflection fully, change the conduction orientation of light, enter the big zone of light guide plate 1 again, the light intensity of destroying the LED2 light source is pointed to and is uniform in light guide plate 1 conducted inside, makes light guide plate 1 produce more uniform in-plane scattering light source.
Shown in figure 7A, be the utility model embodiment four, wherein the wire of these a plurality of potholes 10 is arranged in the curved arc shape, and the effect that its concrete enforcement is produced as Fig. 7 B, is similar to embodiment three (as Fig. 6 B).
In the previous embodiment three or four, the wire of these a plurality of potholes 10 is arranged as symmetrical wire arrangement or arranges for asymmetric wire, and it can also be the wire arrangement of any type of non-geometry linear.
Below the utility model is done one and describe in detail, the above only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented.Be that all equalizations of doing according to the utility model application range change and modify etc., all should still belong in the patent covering scope of the present utility model.
Claims (16)
1. a light conducting plate structure is characterized in that this light guide plate is provided with a plurality of potholes, and at least one LED is the incident light emitting source, and this at least one LED is arranged at the side of light guide plate.
2. light conducting plate structure as claimed in claim 1, it is characterized in that these a plurality of potholes arrangements are arranged at the dead ahead of at least one LED incidence point, each LED incidence point the place ahead is arranged with a plurality of potholes of a cohort respectively, the arrangement mode of a plurality of potholes of each cohort is to be center line with each LED incidence point forward, this center line is provided with a pothole at least, and is the one symmetry arrangement of center one-tenth with the center line; This at least one LED is the incident light emitting source, and LED is arranged at the front end side of light guide plate, and the forward light source is provided.
3. light conducting plate structure as claimed in claim 1 or 2 is characterized in that these a plurality of potholes run through light guide plate.
4. light conducting plate structure as claimed in claim 1 or 2 is characterized in that these a plurality of potholes do not penetrate light guide plate.
5. light conducting plate structure as claimed in claim 2, the arrangement mode that it is characterized in that a plurality of potholes of this each cohort generally is a semi arch symmetric offset spread.
6. light conducting plate structure as claimed in claim 2, its outward appearance of arrangement mode that it is characterized in that a plurality of potholes of this each cohort generally is the symmetric offset spread of a rectangle.
7. light conducting plate structure as claimed in claim 2, the arrangement mode that it is characterized in that a plurality of potholes of this each cohort is asymmetric geometry.
8. light conducting plate structure as claimed in claim 2, the arrangement mode that it is characterized in that a plurality of potholes of this each cohort are that random number is arranged.
9. light conducting plate structure as claimed in claim 1, it is characterized in that: these a plurality of potholes become wire ground to arrange the next door that is arranged at least one LED incidence point, a plurality of pothole summarys that this wire is arranged are separated into two zones with light guide plate, make this at least one LED be positioned at the less zone of area; This at least one LED is arranged at the side, next door of light guide plate, and the side direction light source is provided.
10. light conducting plate structure as claimed in claim 9 is characterized in that these a plurality of potholes run through light guide plate.
11. light conducting plate structure as claimed in claim 9 is characterized in that these a plurality of potholes do not penetrate light guide plate.
12. light conducting plate structure as claimed in claim 9 is characterized in that the wire of these a plurality of potholes is arranged as linearity.
13. light conducting plate structure as claimed in claim 9 is characterized in that the wire of these a plurality of potholes is arranged as the curved arc shape.
14. light conducting plate structure as claimed in claim 9 is characterized in that the wire of these a plurality of potholes is arranged as symmetrical wire arrangement.
15. light conducting plate structure as claimed in claim 9 is characterized in that the wire of these a plurality of potholes is arranged as asymmetric wire arrangement.
16. light conducting plate structure as claimed in claim 9 is characterized in that the wire of these a plurality of potholes is arranged as the wire arrangement of non-geometry linear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03200375U CN2596387Y (en) | 2003-01-09 | 2003-01-09 | Light guide plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03200375U CN2596387Y (en) | 2003-01-09 | 2003-01-09 | Light guide plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596387Y true CN2596387Y (en) | 2003-12-31 |
Family
ID=33752858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03200375U Expired - Fee Related CN2596387Y (en) | 2003-01-09 | 2003-01-09 | Light guide plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596387Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529879C (en) * | 2005-09-07 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Straight down type back light module unit |
| US8297828B2 (en) | 2005-11-17 | 2012-10-30 | Samsung Led Co., Ltd. | Light guide panel |
| CN105431768A (en) * | 2013-08-02 | 2016-03-23 | 堺显示器制品株式会社 | Illumination device and display device |
| CN111781669A (en) * | 2019-04-03 | 2020-10-16 | 昇印光电（昆山）股份有限公司 | Light guide plate |
-
2003
- 2003-01-09 CN CN03200375U patent/CN2596387Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529879C (en) * | 2005-09-07 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Straight down type back light module unit |
| US8297828B2 (en) | 2005-11-17 | 2012-10-30 | Samsung Led Co., Ltd. | Light guide panel |
| CN105431768A (en) * | 2013-08-02 | 2016-03-23 | 堺显示器制品株式会社 | Illumination device and display device |
| CN105431768B (en) * | 2013-08-02 | 2019-08-20 | 堺显示器制品株式会社 | Lighting device and display device |
| CN111781669A (en) * | 2019-04-03 | 2020-10-16 | 昇印光电（昆山）股份有限公司 | Light guide plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JUHONG ELECTRONICS CO., LTD. Free format text: FORMER OWNER: SHANTAISHI CO., LTD. Effective date: 20040709 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20040709 Address after: Taiwan, China Patentee after: Juhong Electronics Co., Ltd. Address before: Taiwan, China Patentee before: Alliance Material Co. Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031231 |