CN202486351U - Light inlet surface structure of light guide plate - Google Patents
Light inlet surface structure of light guide plate Download PDFInfo
- Publication number
- CN202486351U CN202486351U CN2012200465503U CN201220046550U CN202486351U CN 202486351 U CN202486351 U CN 202486351U CN 2012200465503 U CN2012200465503 U CN 2012200465503U CN 201220046550 U CN201220046550 U CN 201220046550U CN 202486351 U CN202486351 U CN 202486351U
- Authority
- CN
- China
- Prior art keywords
- light guide
- light
- incidence surface
- base plate
- guide base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000465 moulding Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 9
- 238000007598 dipping method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The utility model relates to a light inlet surface structure of a light guide plate. The light inlet surface structure takes a light guide substrate as a main body, and the light guide substrate is provided with a light inlet surface, a light guide structure and a light outlet surface. The light inlet surface structure is characterized in that each V-shaped groove is adjacently connected with each mirror surface platform, and the V-shaped grooves and the mirror surface platforms are arranged in a continuous alternating manner, thereby forming the light inlet surface structure; and the widths of the mirror surface platforms are defined in a specific range, so that the mirror surface platforms can be assembled in a backlight module, thereby improving the brightness and uniformity of outlet light of the light outlet surface of the light guide plate, and effectively avoiding the phenomenon of alternation of brightness and darkness of the conventional light guide plate.
Description
Technical field
The utility model relates to a kind of LGP incidence surface structure, but refers in particular to a kind of correcting light source direct of travel, promotes the LGP bright dipping and all spends together, and avoid the incidence surface structure of bright dark alternate situation.
Background technology
The light path means of existing backlight technology, mainly with the LED lamp penetrate go into to establish light and get into the LGP incidence surface after, the incidence surface of its planar structure infeeds establishes light generation unirefringence, the angle of its light inlet can further be dwindled and obtained refracted ray, and area source is provided; Therefore can be brighter in the zone of LED lamp, the zone between LED lamp and the LED lamp is then dark partially, produces bright dark alternate phenomenon.
For solving the problem of traditional LGP, then there is a LGP 1 design to produce (consulting Fig. 1) in addition, this LGP 1 has an incidence surface 10 and exiting surface 11.Form the equal photo structure 12 that constitutes by continuous V-type ditch on this incidence surface 10; Incidence surface 10 is in order to accept the pointolite that lamp source 13 is launched; This pointolite is penetrated and behind equal photo structure 12; Produce refraction through the ditch wall of equal photo structure 12V type ditches, light source is concentrated to LGP 1 internal delivery, have spotlight effect concurrently during again by exiting surface 11 bright dippings and obtain the effect of area source.But, influence the bright dipping briliancy of exiting surface, and then reduce the usefulness of LGP because of light source must spread after the ditch wall refraction of V-type ditch.
Summary of the invention
The purpose of the utility model is; Provide a kind of can effectively promote the LGP bright dipping all together the degree; And avoid occurring the LGP incidence surface structure of bright dark alternate phenomenon; Utilize on the incidence surface moulding one can adjust the light guide structure of correcting light source direction, and solve the not enough and bright dark alternate optical issue that goes out of traditional LGP bright dipping briliancy.
For reaching aforementioned purpose, the utility model discloses a kind of LGP incidence surface structure, be the main body with a light guide base plate, it is characterized in that this light guide base plate has:
One incidence surface is positioned at the light guide base plate side end edge to accept the light source from the lamp source;
One in the face of this lamp source and the light guide structure of machining moulding on this incidence surface, comprises V-type ditch and the mirror platform of number sections of several circular arc ditches bottoms of adjacent connection, and this V-type ditch and mirror platform are constituted with the kenel of interting each other continuously; And
One exiting surface adjacent to incidence surface, and is positioned at the light guide base plate upper surface.
Wherein, this V-type ditch bottom is sharp type groove structure.
Wherein, the mirror platform width setup of this section is the scope of 1/3P＜W＜P, and wherein this W is the mirror platform width, and its P is the distance between two V-type ditch cusps.
Wherein, this lamp source is the LED lamp.
Pass through said structure; The LGP incidence surface structure of the utility model utilizes the incidence surface light guide structure in order to accept the light source from LED lamp source; Make this light source respectively on incidence surface the mirror platform correcting light source of light guide structure be that forward is advanced, the ditch wall and the bottom circular arc ditch that have by V-type ditch continuously simultaneously obtain the effect of different extent of refraction; Produce diffusional effect and adjust the light source direct of travel, make light source more even; So, can promote light guide base plate exiting surface bright dipping briliancy and equal degree together, and effectively avoid near the bright dark alternate situation light inlet.
Description of drawings
Fig. 1: the structural plan figure of traditional LGP.
Fig. 2: the LGP stereographic map of the utility model.
Fig. 3: the lamp source configuration schematic diagram of the utility model.
Fig. 4: the mirror platform width setup figure of the utility model.
Fig. 5: the lamp source configuration enlarged drawing of the utility model.
Fig. 6: the light source refraction synoptic diagram of the utility model.
Fig. 7: the light source projects synoptic diagram of the utility model.
Fig. 8: the area source of the utility model is accomplished figure.
Embodiment
See also Fig. 2 and shown in Figure 3, the LGP incidence surface structure of the utility model is the main body with a light guide base plate 2, and this light guide base plate 2 has an incidence surface 20 and is located at a light guide structure 21 and an exiting surface 22 on the incidence surface 20 with machining moulding mode; Wherein this incidence surface 20 is positioned at a side end edge of light guide base plate 2, the light source of being launched in order to the lamp source 3 (being illustrated as the LED lamp) of accepting configuration;
This light guide structure 21 is located on the end face of incidence surface 20 with the excision forming mode; Comprise several V-type ditches 210 and several are the mirror platform structure 211 of minute surface; And with a V-type ditch 210 adjacent connection one mirror platform structures 211; The alternate kenel of interting each other is structure as a whole, and the bottom of V-type ditch 210 is circular arc ditch 213 or pointed ditch body design (being illustrated as circular arc ditch 213); In addition this mirror platform is for promoting all degree together of light guide base plate 2 exiting surfaces 20 bright dipping briliancy, especially its width range is set at particular range that (this confining spectrum is the width data of 1/3P＜W＜P; Wherein W is the width of mirror platform, and P is the distance between two V-type ditch cusps, both the distance between the two V-type bottoms of trench (consulting shown in Figure 4).
This exiting surface 22 is to be vertical adjacent to incidence surface 20 and with incidence surface 20 and the position, upper surface that is positioned at light guide base plate 2.
The utility model is when implementing; Like Fig. 5, Fig. 6, shown in Figure 7; When lamp source 3 after incidence surface 20 is injected, this light source then respectively through the V-type ditch 210 ditch walls 212 of light guide structure 21 and 213 refractions of bottom circular arc ditch, makes light source obtain the effect of different extent of refraction; Adjust the light source direct of travel and produce diffusional effect, comprehensively to light guide base plate 2 internal delivery; Utilize the mirror platform 211 of light source simultaneously through minute surface; The correcting light source is that forward is advanced; It is that uniform line source is to light guide base plate 2 internal delivery that light source is concentrated; Project an emitting uniform area source by exiting surface 22 again,, finally form an emitting uniform area source (like Fig. 8) at LCD panel 5 afterwards through optical diaphragm group 4.
The effect of the utility model is; The light guide structure 21 that utilizes this incidence surface 20 is in order to accept the light source from LED lamp source 3; Make this light source respectively on incidence surface 20 the mirror platform 211 correcting light sources of light guide structure 21 be that forward is advanced, the ditch wall 212 and the bottom circular arc ditch 213 that have by V-type ditch continuously simultaneously obtain the effect of different extent of refraction; Produce diffusional effect and adjust the light source direct of travel, make light source more even; So, can promote light guide base plate 2 exiting surfaces 22 bright dipping briliancy and equal degree together, and effectively avoid near the bright dark alternate situation light inlet.
Claims (4)
1. a LGP incidence surface structure is the main body with a light guide base plate, it is characterized in that this light guide base plate has:
One incidence surface is positioned at the light guide base plate side end edge to accept the light source from the lamp source;
One in the face of this lamp source and the light guide structure of machining moulding on this incidence surface, comprises V-type ditch and the mirror platform of number sections of several circular arc ditches bottoms of adjacent connection, and this V-type ditch and mirror platform are constituted with the kenel of interting each other continuously; And
One exiting surface adjacent to incidence surface, and is positioned at the light guide base plate upper surface.
2. according to the described LGP incidence surface of claim 1 structure, it is characterized in that this V-type ditch bottom is sharp type groove structure.
3. according to the described LGP incidence surface of claim 1 structure, it is characterized in that the mirror platform width setup of this section is the scope of 1/3P＜W＜P, wherein this W is the mirror platform width, and its P is the distance between two V-type ditch cusps.
4. according to the described LGP incidence surface of claim 1 structure, it is characterized in that this lamp source is the LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200465503U CN202486351U (en) | 2012-02-14 | 2012-02-14 | Light inlet surface structure of light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200465503U CN202486351U (en) | 2012-02-14 | 2012-02-14 | Light inlet surface structure of light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486351U true CN202486351U (en) | 2012-10-10 |
Family
ID=46960764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200465503U Expired - Fee Related CN202486351U (en) | 2012-02-14 | 2012-02-14 | Light inlet surface structure of light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202486351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629661A (en) * | 2020-11-27 | 2021-04-09 | 苏州雅睿生物技术有限公司 | Light guide plate for double-light-source detection and application thereof |
-
2012
- 2012-02-14 CN CN2012200465503U patent/CN202486351U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629661A (en) * | 2020-11-27 | 2021-04-09 | 苏州雅睿生物技术有限公司 | Light guide plate for double-light-source detection and application thereof |
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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 |
Granted publication date: 20121010 Termination date: 20200214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |