CN207528958U - Light guide plate - Google Patents
Light guide plate Download PDFInfo
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- CN207528958U CN207528958U CN201721674384.0U CN201721674384U CN207528958U CN 207528958 U CN207528958 U CN 207528958U CN 201721674384 U CN201721674384 U CN 201721674384U CN 207528958 U CN207528958 U CN 207528958U
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- light
- light guide
- guide structure
- guide plate
- incidence surface
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- 230000000644 propagated effect Effects 0.000 claims abstract description 3
- 238000009826 distribution Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model design is related to a kind of light guide plate, including the first incidence surface, second incidence surface and light-emitting surface, the light-emitting surface and the first incidence surface, second incidence surface abuts, the light-emitting surface is provided with the first light guide structure and the second light guide structure, first light guide structure uses a plurality of columns laterally arranged, and first light guide structure it is vertical with the arragement direction of the second light guide structure, it is adjacent to the first importing smooth surface, second incidence surface is equipped with first light source component and second light source component, light is independently propagated in the first light guide structure and the second light guide structure, the leaded light is by using first structure and the matched combined of the second light guide structure, promote the accuracy that light source enters light after light guide plate, reduce the receipts light ratio of light in subregion；The utility model side entrance back module is made using the light guide plate, reduces the crosstalk between subregion, promotes the whole display effect of backlight module.
Description
Technical field
The utility model is related to backlight display field, more particularly to a kind of light guide plate.
Background technology
Liquid crystal display (Liquid Crystal Display；LCD) because with high image quality, small, light-weight, low drive
The advantages that dynamic voltage and low consumpting power, it is widely used in personal digital assistant (PersonalDigital Assistant；
PDA), the communication of the consumer such as mobile phone, desktop displays, vehicle display or electronic product.It is common currently on the market
Liquid crystal display largely for backlight liquid crystal display, mainly by being located at the liquid crystal display panel of front end and being located at after
The backlight module at end is formed, and backlight module is according to entering light mode difference and can divide into side-light type to enter light (Edge Ligh
Ting) module enters two kinds of light (Bottom Lighting) module with straight-down negative.For the backlight module for entering light with side direction type, lead to
Often comprising a light guide plate and multiple light emitting diodes at light guide plate side, dotted light caused by the light emitting diode
Line is converted into uniform planar through light guide plate and shines, as the planar light source needed for liquid crystal display.With mobile equipment
Such as universal, the portable information product such as small-medium size product, particularly intelligent terminal of intelligent electronic device in daily life
Significant progress is obtained, while constantly pursuing the display screen of high-resolution, high contrast and narrow frame, user more payes attention to
Use comfort, simple operation and the humanization level of mobile equipment；Multi-section display has become the selection of more and more users.
The Partitioned light-guiding of prior art backlight module is assembled by multiple light guide plates, and different zones light is because passing through leaded light
Gap between plate and generate briliancy and coloration drop.Thus, audience by can when the drop of above-mentioned briliancy and coloration it is light
Easily find the gap between light guide plate.In addition, the assembling process of assembled leaded light component is troublesome and aligning accuracy requirement is very high, even if
Assembling is well also possible to cause to deviate because external force influences, and generates the visual effect of light leakage, therefore, how to be lighted in subregion
The bright line generated between uniformity and light-emitting zone is improved while shining, also there are further improved spaces.
Utility model content
To overcome the problems, such as the briliancy and coloration drop of Partitioned light-guiding generation in the prior art, the utility model provides a kind of
Light guide plate with preferable multi-section display effect.
In order to solve the above technical problems, the technical solution of the utility model is as follows：A kind of light guide plate enters light including first
Face, the second incidence surface and light-emitting surface, it is characterised in that：The light-emitting surface and the first incidence surface, the second incidence surface abut, it is described go out
Smooth surface is provided with column and the second light guide structure, and column uses a plurality of columns laterally arranged, and column and the
The arragement direction of two light guide structures is vertical, is adjacent to the first importing smooth surface, the second incidence surface is equipped with first light source component and
Two light source assemblies, light independently is propagated in column and the second light guide structure, the light-emitting surface formed main output optical zone and time
Output optical zone.
Preferably, the column has the cross section of arc.
Preferably, it is 15~35 μm that the column, which defines radius R, adjacent two columns spacing is that L is 5~20 μm, and
R/T is 1.5~2.5.
Preferably, the column is more than first to enter far from this close to its network point distribution density of the region of first incidence surface
Smooth surface network point distribution density.
Preferably, the second light guide structure surface is using one kind in V-arrangement array, U-shaped array or mirror surface structure.
The beneficial effects of the utility model are：By two kinds of microstructure designs of light-emitting surface of light guide plate, strengthen light guide plate
The convergence of the light of each subregion reduces the crosstalk of different light-emitting zone light, improves the screen accounting of display device simultaneously,
When for above-mentioned sidelight type backlight module, reach best backlight module region control.
Description of the drawings
Fig. 1 shows the structure front schematic view according to the utility model light guide plate.
Fig. 2 shows according to the utility model the second incidence surface partial schematic diagram.
Wherein, the reference numerals are as follows：
10 first incidence surface, 20 second incidence surface
30 light-emitting surface, 31 column
32 second light guide structure, 40 first light source component
50 second light source component R radiuses
L spacing.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：It please refers to Fig.1 and schemes
2, light guide plate includes the first incidence surface 10, the first incidence surface 20 and light-emitting surface smooth surface 30,30 and first incidence surface of light-emitting surface
10th, the second incidence surface 20 abuts, and in the present embodiment, which is in tabular, can be arranged to other according to actual needs
Shape, such as wedge shape.
The light-emitting surface 30 is provided with the first light guide structure 31 and the second light guide structure 32, and the second light guide structure 32 is using laterally
The geometry array of arrangement, adjacent first importing smooth surface 10, the first incidence surface 20 are equipped with first light source component 40 and second
Light source assembly 50, and the light-emitting surface 30 is located at the both ends of the short side of light guide plate with lattice point structure inside light guide plate respectively.
In the present embodiment, which protrudes from the light-emitting surface 30；First light source component 40 emits beam from X-axis
Into the first incidence surface 10, second light source component 50 emits beam from Y-axis into the second incidence surface 20, and each light source assembly is
Its adjacent guide-lighting region provides incident light, and in the present embodiment, the second light guide structure 32 is in that lateral column is arranged, we
It is 15~35 μm that definition column radius, which is R, and adjacent two columns spacing is that L is 5~20 μm, and R/L values are between 1.5~2.5
Between.
In the present embodiment, 32 cross section of the second light guide structure is semicircle, and but it is not limited to this, the second light guide structure
It can also be other structures, such as positioned at cambered surface, using more than structure type, avoid light from the second incidence surface 20 towards adjacent
The light of subregion, and the light injected from the second incidence surface is all restrained towards the direction of the second light guide structure 32.
Table 1：
With reference to upper table 1, using 32 arc cylinder radius of the second light guide structure as 30 μm, adjacent two shapes cylinder spacing is 15 μm,
For thickness 0.33mm, the optically focused ratio of actually detected middle light guide plate reaches 8%.
In the present embodiment, when manufacturing the light guide plate, first with Ultraprecision Machining in light guide plate former material
The plural number column 31 is cut into, the second guide-lighting micro-structure 32 is using precision CUT processing forming V-shapes array, U-shaped array or minute surface knot
One kind in structure.
Since the first light guide structure 31 and the second light guide structure 32 are located in same light guide plate both ends, first light source group respectively
Part 40 and second light source component selectively light first light source component 40, second light source component 50 by backlight module independent control,
40 light of first light source component enters laterally light guide plate light, and 50 longitudinal direction of second light source component enters from light guide plate at this time, due to two
Farther out, we adjust the quantity and position distribution of site inside light guide plate to group light source distance, close to the site of first light source component
It is more smooth that distribution concentrates the luminance transition for making main output optical zone and time output optical zone that can show.
It is appreciated that being only the position relationship for illustrating the first light guide structure 31 and the second light guide structure 32 in Fig. 1, it is familiar with
The technical staff of the utility model can adjust the size and number of 31 and second light guide structure 32 of column as needed.
The above content is combine specific embodiment further detailed description of the utility model, it is impossible to assert
The specific implementation of the utility model is confined to these explanations, for the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be considered as category
In the scope of protection of the utility model.
Claims (5)
1. a kind of light guide plate, including the first incidence surface, the second incidence surface and light-emitting surface, it is characterised in that：The light-emitting surface and
One incidence surface, the adjoining of the second incidence surface, the light-emitting surface are provided with the first light guide structure and the second light guide structure, the first guide-lighting knot
Structure uses a plurality of columns laterally arranged, and the first light guide structure is vertical with the arragement direction of the second light guide structure, neighbouring
First light source component and second light source component are equipped in the first importing smooth surface, the second incidence surface, light is independent in the first leaded light
It is propagated in structure and the second light guide structure, main output optical zone and time output optical zone is formed in the light-emitting surface.
2. a kind of light guide plate according to claim 1, which is characterized in that the column has the cross section of arc.
3. a kind of light guide plate according to claim 2, which is characterized in that it is 15~35 μm that the column, which defines radius R,
Adjacent two columns spacing is that L is 5~20 μm, and R/T is 1.5~2.5.
4. a kind of light guide plate according to claim 1, which is characterized in that first light guide structure first enters light close to this
Its network point distribution density of the region in face is more than far from the first incidence surface network point distribution density.
5. a kind of light guide plate according to claim 1, which is characterized in that the second light guide structure surface uses V-arrangement battle array
One kind in row, U-shaped array or mirror surface structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674384.0U CN207528958U (en) | 2017-12-06 | 2017-12-06 | Light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674384.0U CN207528958U (en) | 2017-12-06 | 2017-12-06 | Light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207528958U true CN207528958U (en) | 2018-06-22 |
Family
ID=62577544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721674384.0U Active CN207528958U (en) | 2017-12-06 | 2017-12-06 | Light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207528958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817550A (en) * | 2017-12-12 | 2018-03-20 | 芜湖德仓光电有限公司 | Light guide plate |
-
2017
- 2017-12-06 CN CN201721674384.0U patent/CN207528958U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817550A (en) * | 2017-12-12 | 2018-03-20 | 芜湖德仓光电有限公司 | Light guide plate |
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