CN2819253Y - Light-conductive board and negative-light molding set - Google Patents
Light-conductive board and negative-light molding set Download PDFInfo
- Publication number
- CN2819253Y CN2819253Y CN 200520061959 CN200520061959U CN2819253Y CN 2819253 Y CN2819253 Y CN 2819253Y CN 200520061959 CN200520061959 CN 200520061959 CN 200520061959 U CN200520061959 U CN 200520061959U CN 2819253 Y CN2819253 Y CN 2819253Y
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- light
- vee
- cut
- matrix
- guide plate
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Abstract
The utility model relates to a light conducting plate and a backlight die set which adopts the light conducting plate. The light conducting board comprises a base body, wherein the base body is provided with a light entering plane and a light exiting plane which is arranged corresponding to the light entering plane. V-shaped grooves which are arrayed in parallel are arranged on the light exiting plane of the light conducting plate, and the range of the included angle between each V-shaped groove and the longer edge of the base body is from 5 to 44.9 DEG.
Description
[technical field]
The utility model relates to a kind of module backlight that is used for the light guide plate of LCD and adopts this light guide plate.
[background technology]
LCD has been widely used among various information, communication, the consumer products.But because liquid crystal itself is not had a characteristics of luminescence in the panel of LCD, thereby, for reaching display effect, need to give the LCD panel that one planar light source device is provided, as module backlight, its function is area source abundant to panel of LCD supply briliancy and that be evenly distributed.
Seeing also Fig. 1, is the structural representation of a kind of prior art module backlight.This module 100 backlight comprises a fluorescent tube 120, a reflector plate 110, a light guide plate 130 and a light-collecting piece 140.The stacking from top to bottom successively arrangement of this reflector plate 110, light guide plate 130 and light-collecting piece 140.This fluorescent tube 120 is arranged on light guide plate 130 1 sides.
This light guide plate 130 has a rectangle matrix, and this matrix comprises an exiting surface 131, and this exiting surface 131 has the vee-cut 133 that is parallel to light guide plate matrix one longer sides.This light-collecting piece 140 is made by a kind of methacrylate polymer, has refractive index and transmittance preferably, and this light-collecting piece 140 has a rectangle matrix, and this matrix exiting surface 141 has the vee-cut 143 perpendicular to light-collecting piece matrix one longer sides.The vee-cut 143 of this light-collecting piece 140 is vertical with the vee-cut 133 of light guide plate 130.
The beam Propagation that fluorescent tube 120 sends is to light guide plate 130, and this light guide plate 130 cooperates with reflector plate 110 and light-collecting piece 140 and light beam is transformed into area source penetrates.
This light guide plate 130 and the orthogonal separately vee-cut 133,143 of this light-collecting piece 140 have the control light direction, strengthen the effect of briliancy.And the light guide plate that this has vee-cut has the light harvesting effect, can replace a slice light-collecting piece, thereby can reduce cost.
Yet, actual when carrying out the optical characteristics optimal design, this light guide plate 130 and this light-collecting piece 140 be vee-cut 133,143 orthogonal structures separately, can't carry out the optical optimization design by the direction of adjusting the vee-cut arrangement, and therefore bigger restriction is arranged in optical design.
[utility model content]
For overcoming the limited shortcoming of prior art light guide plate optical design degree of freedom, be necessary to provide a kind of optical design degree of freedom high light guide plate.
For overcoming the limited shortcoming of prior art module optical design backlight degree of freedom, be necessary the module backlight that provides a kind of optical design degree of freedom high.
The light guide plate that one better embodiment is disclosed comprises a matrix, this matrix has an incidence surface and one and the exiting surface that is oppositely arranged of this incidence surface, this exiting surface is provided with the vee-cut that is arranged in parallel, and the angular range that this vee-cut is become with light guide plate matrix one longer sides is that 5 degree are to 44.9 degree.
The module backlight that another better embodiment disclosed comprises a light guide plate and a light source.This light guide plate comprises a matrix, and this matrix has an incidence surface and one and the exiting surface that is oppositely arranged of this incidence surface.This incidence surface and light source are oppositely arranged, and this exiting surface is provided with the vee-cut that is arranged in parallel, and the angular range that this vee-cut is become with light guide plate matrix one longer sides is that 5 degree are to 44.9 degree.
Compared to prior art, light guide plate of the present utility model influence optical characteristics by changing the vee-cut direction, thus the raising design freedom, and the design that can cooperate vee-cut is to satisfy the visual angle demand.
[description of drawings]
Fig. 1 is the structural representation of a kind of prior art module backlight.
Fig. 2 is the structural representation of the utility model light guide plate first embodiment.
Fig. 3 is the structural representation of the utility model module first embodiment backlight.
Fig. 4 is the improved structural representation of the utility model module first embodiment backlight.
[embodiment]
Seeing also Fig. 2, is the structural representation of the utility model light guide plate first embodiment.This light guide plate 200 comprises a rectangle matrix 210, and this matrix 210 has an exiting surface 211 and an incidence surface 212.This exiting surface 211 has the vee-cut 213 that is arranged in parallel.
The angular range that the vee-cut 213 of this light guide plate 200 is become with these matrix 210 1 longer sides is that 5 degree are to 44.9 degree.In this angular range, briliancy is higher, and can improve interference fringe phenomenons such as Newton ring by the rotation of vee-cut 213.Getting this angle in the present embodiment is 30 degree.Because the orientation meeting of the vee-cut 213 of this light guide plate 200 influences its optical property, therefore can be by adjusting the optimal design that its angle with matrix 210 1 longer sides carries out optical characteristics, thus the raising design freedom.
In the present embodiment, the vee-cut 213 of this light guide plate exiting surface 211 can be arranged along these matrix 210 diagonals.Yet the angular range that this moment, this diagonal line was become with these matrix 210 1 longer sides also is that 5 degree are to 44.9 degree.
Seeing also Fig. 3, is the structural representation of the utility model module first embodiment backlight.This module 300 backlight comprises a light source 320, a reflector plate 310, a light guide plate 330 and a diffusion sheet 350.The stacking from top to bottom successively arrangement of this reflector plate 310, light source 320, light guide plate 330 and diffusion sheet 350.This light guide plate 330 comprises a rectangle matrix, and this matrix has an exiting surface 331 and an incidence surface 332.This light source 320 is cold cathode fluorescent lamp of a plurality of parallel arranged, and is oppositely arranged with the incidence surface 332 of light guide plate 330.In the present embodiment, this light source 320 also can be a light emitting diode.
The exiting surface 331 of this light guide plate 330 has the vee-cut 333 that is arranged in parallel.The angular range that the vee-cut 333 of this light guide plate 330 is become with its matrix one longer sides be 5 degree to 44.9 degree, in this angular range, outgoing luminous energy keeps higher briliancy, and can improve interference fringe phenomenons such as Newton ring by the rotation of vee-cut 333.This angle is 30 degree in the present embodiment.
This vee-cut 333 also can be arranged along the diagonal of light guide plate 330 matrixes in the present embodiment, yet this moment, this angular range that angular direction is become with its matrix one longer sides also was that 5 degree are to 44.9 degree.
Seeing also Fig. 4, is the improved structural representation of the utility model module first embodiment backlight.Promptly this module 400 backlight further comprises a light-collecting piece 440, and this light-collecting piece 440 is arranged between light guide plate 330 and the diffusion sheet 350.This light-collecting piece 440 is made by a kind of methacrylate polymer, has refractive index and transmittance preferably.These light-collecting piece 440 shapes are similar to light guide plate 330, and it comprises a matrix, and this matrix has an exiting surface 441 and an incidence surface 442, and this exiting surface 441 has the vee-cut 443 that is arranged in parallel.
Vee-cut 333 and its matrix one longer sides of this light guide plate 330 have angle, and this angle can be that 5 degree are to 44.9 degree.Vee-cut 443 and its matrix one longer sides of this light-collecting piece 440 have angle, and this angle also can be that 5 degree are to 44.9 degree.And the vee-cut 333 of this light guide plate 330 and vee-cut 443 cross arrangements of light-collecting piece 440.In this embodiment, the angle that the vee-cut 333 of this light guide plate 330 and the vee-cut 443 of this light-collecting piece 440 are become with matrix one longer sides separately all is 30 degree.
In the present embodiment, the vee-cut 333 of this light guide plate 330 and the vee-cut 443 of this light-collecting piece 440 all can be along matrix diagonal cross arrangements separately.Yet the angular range that this light guide plate 330 and the diagonal line of light-collecting piece 440 are become with matrix one longer sides separately all should be that 5 degree are to 44.9 degree.
In the present embodiment, this light-collecting piece also can be arranged on the diffusion sheet top.This module backlight also can be provided with two diffusion sheets, and this light-collecting piece is clipped between two diffusion sheets.
The shape at the utility model vee-cut top is not particularly limited, and can be wedge angle or circular arc and other shape.
Be different from the design limitations of prior art module vee-cut backlight vertical stratification, the utility model is mainly realized optimal design to optical property by the variable angle to vee-cut and matrix longer sides, and can cooperate light guide plate and some other parameter of light-collecting piece, as shape, size and the material etc. of vee-cut to reach higher design freedom.To the scopes of 5 degree to 44.9 degree, it is strong that emergent light has briliancy, the advantage that uniformity coefficient is high, and can eliminate interference fringe phenomenons such as Newton ring by the rotation of vee-cut.
Claims (10)
1. light guide plate, comprise a matrix, this matrix has an incidence surface and one and the exiting surface that is oppositely arranged of this incidence surface, and this exiting surface is provided with the vee-cut that is arranged in parallel, and it is characterized in that: the angular range that this vee-cut is become with this matrix one longer sides is that 5 degree are to 44.9 degree.
2. light guide plate as claimed in claim 1 is characterized in that: the angle of this vee-cut and matrix one longer sides is 30 degree.
3. a module backlight, comprise a light source, one light guide plate, this light guide plate comprises a matrix, this matrix has an incidence surface and one and the exiting surface that is oppositely arranged of this incidence surface, this incidence surface and light source are oppositely arranged, and this exiting surface is provided with the vee-cut that is arranged in parallel, and it is characterized in that: the angular range of this vee-cut and matrix one longer sides is that 5 degree are to 44.9 degree.
4. module backlight as claimed in claim 3 is characterized in that: the angle of this vee-cut and matrix one longer sides is 30 degree.
5. module backlight as claimed in claim 3 is characterized in that: this light guide plate exiting surface is provided with a light-collecting piece.
6. module backlight as claimed in claim 5 is characterized in that: this light-collecting piece comprises a matrix, and this matrix has an exiting surface, and this exiting surface is provided with the vee-cut that is arranged in parallel.
7. module backlight as claimed in claim 6 is characterized in that: this light-collecting piece vee-cut and the cross arrangement of light guide plate vee-cut.
8. module backlight as claimed in claim 6 is characterized in that: the angular range that this light-collecting piece vee-cut is become with its matrix one longer sides is that 5 degree are to 44.9 degree.
9. module backlight as claimed in claim 6 is characterized in that: the angle that this light-collecting piece vee-cut is become with its matrix one longer sides is 30 degree.
10. module backlight as claimed in claim 7 is characterized in that: this light guide plate vee-cut and light-collecting piece vee-cut are along matrix diagonal cross arrangement separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520061959 CN2819253Y (en) | 2005-07-22 | 2005-07-22 | Light-conductive board and negative-light molding set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520061959 CN2819253Y (en) | 2005-07-22 | 2005-07-22 | Light-conductive board and negative-light molding set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2819253Y true CN2819253Y (en) | 2006-09-20 |
Family
ID=37005313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520061959 Expired - Lifetime CN2819253Y (en) | 2005-07-22 | 2005-07-22 | Light-conductive board and negative-light molding set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2819253Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907933A (en) * | 2017-12-29 | 2018-04-13 | 深圳Tcl新技术有限公司 | light guide plate assembly |
-
2005
- 2005-07-22 CN CN 200520061959 patent/CN2819253Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907933A (en) * | 2017-12-29 | 2018-04-13 | 深圳Tcl新技术有限公司 | light guide plate assembly |
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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 |
Expiration termination date: 20150722 Granted publication date: 20060920 |
|
| EXPY | Termination of patent right or utility model |