CN204494198U - Light source module and light guide plate - Google Patents
Light source module and light guide plate Download PDFInfo
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- CN204494198U CN204494198U CN201520026296.4U CN201520026296U CN204494198U CN 204494198 U CN204494198 U CN 204494198U CN 201520026296 U CN201520026296 U CN 201520026296U CN 204494198 U CN204494198 U CN 204494198U
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- light
- guide plate
- incident sides
- shrinkage pool
- output surface
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- Light Guides In General And Applications Therefor (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The utility model provides a kind of light source module and light guide plate, and this light source module comprises: a light-emitting component, has an optical axis; And a light guide plate.This light guide plate comprises: a body, and comprise a light incident sides and a light output surface, this light-emitting component is installed on this light incident sides, and this light output surface is adjacent to this light incident sides; And plural number gets light shrinkage pool, be formed at this light output surface, respectively this is got light shrinkage pool and is less than it in the length perpendicular to this optical axis direction in the length being parallel to this optical axis direction.The utility model can illuminate the display floater of transparent display or e-book effectively and equably, thus makes user can read the picture of transparent display or e-book display under low lighting environment.
Description
Technical field
The utility model relates to a kind of light source module and light guide plate, and in particular to optical mode group and edge-type light guide plate before a kind of side entering type.
Background technology
Display is one of modern's indispensable important electronic products in life, along with making rapid progress of its technology, from slimming towards the kenel development such as transparent and soft.Wherein transparent display (or being called penetration display) is available for users to see the scenery at its rear, therefore its application is except general portable electronic products, also comprises shopper window, information announcement hurdle, building and vehicle window.
Display mainly uses liquid crystal panel to carry out show image, but liquid crystal panel itself can not be luminous, therefore under low lighting environment, just not easily reads the picture shown by liquid crystal panel.Nontransparent display mainly utilizes the backlight module irradiating liquid crystal panel be arranged on bottom liquid crystal panel, and backlight module generally can be divided into down straight aphototropism mode set and side-light backlight module.The light-emitting component of down straight aphototropism mode set is the bottom being directly arranged on liquid crystal panel, when Gu Dangqi is applied to transparent display, will affect overall transparency and display effect widely.Side-light backlight module mainly utilizes the light of light-guide plate guides light-emitting component, then reflector plate of arranging in pairs or groups releases the light of light guide plate with reflection, light can both be transmitted towards the direction of liquid crystal panel; Use due to reflector plate can change the direction of transfer of light effectively, as long as therefore the design being formed in the micro-structural on light guide plate can allow light evenly be passed to distance light place by dipped beam, special requirement light does not need by close display floater or penetrates (namely not considering light direction) away from the surface of display floater.
But this side-light backlight module but cannot be applied in transparent display, its main cause is that reflector plate can cause transparent display cannot realize Transparence Display effect; Secondly, microstructure design system on the light guide plate of side-light backlight module does not need because of the use of reflector plate to consider light direction, therefore, if directly this light guide plate is directly applied to transparent display, by because of the light direction of light inconsistent and cannot effectively and illuminate liquid crystal panel equably.
Utility model content
The technical problems to be solved in the utility model is that the light direction in order to overcome backlight module light of the prior art is inconsistent and effectively and equably cannot illuminate the defect of liquid crystal panel, provides a kind of light source module and light guide plate.
The utility model solves above-mentioned technical problem by following technical proposals:
Light source module, is applied to transparent display, and its feature is, this light source module comprises:
One light-emitting component, has an optical axis; And
One light guide plate, comprises:
One body, comprise a light incident sides and a light output surface, this light-emitting component is installed on this light incident sides, and this light output surface is adjacent to this light incident sides; And
Plural number gets light shrinkage pool, is formed at this light output surface, and respectively this is got light shrinkage pool and is less than it in the length perpendicular to this optical axis direction in the length being parallel to this optical axis direction.
Preferably, respectively this is got light shrinkage pool and is being parallel to the length of this optical axis direction and it should perpendicular to the ratio of the length of this optical axis direction between 0.3 to 0.9.Thus, get light shrinkage pool and can effectively tackle the light entering edge-type light guide plate, make light be able to be penetrated by light output surface.
The utility model also provides a kind of edge-type light guide plate, and its feature is, this edge-type light guide plate comprises:
One transparent plate body, comprises a light incident sides and a light output surface; And
A plurality ofly get light micro-structural, be formed at this light output surface, respectively this gets light micro-structural is shrinkage pool shape, and it is less than it in the length being parallel to this light incident sides direction in the length perpendicular to this light incident sides direction.
Preferably, respectively this get light micro-structural perpendicular to this light incident sides direction length and its this be parallel to the ratio of the length in this light incident sides direction between 0.3 to 0.9.Thus, get light micro-structural and can effectively tackle the light entering edge-type light guide plate, make light be able to be penetrated by light output surface.
The utility model also provides a kind of edge-type light guide plate, and its feature is, this edge-type light guide plate comprises:
One transparent plate body, comprises a light incident sides, a light output surface, and a bottom surface relative with this light output surface; And
A plurality ofly get light micro-structural, be formed at this bottom surface, respectively this gets light micro-structural is shrinkage pool shape, and it is less than it in the length being parallel to this light incident sides direction in the length perpendicular to this light incident sides direction.
Preferably, respectively this get light micro-structural perpendicular to this light incident sides direction length and its this be parallel to the ratio of the length in this light incident sides direction between 0.3 to 0.9.Thus, get light micro-structural and can effectively tackle the light entering edge-type light guide plate, make light be able to be penetrated by light output surface.
The utility model also provides a kind of edge-type light guide plate, and its feature is, this edge-type light guide plate comprises:
One transparent plate body, comprises a light incident sides and a light output surface; And
One light extraction pattern, is made up of a plurality of oval shrinkage pool, is positioned at this light output surface;
Respectively this light incident sides of longer axis parallel of this oval shrinkage pool, minor axis this light incident sides vertical.
Preferably, respectively the minor axis of this oval shrinkage pool and major axis ratio between 0.3 to 0.9.Thus, oval shrinkage pool can tackle the light entering edge-type light guide plate effectively, makes light be able to be penetrated by light output surface.
The utility model also provides a kind of edge-type light guide plate, and its feature is, this edge-type light guide plate comprises:
One transparent plate body, comprises a light incident sides, a light output surface, and a bottom surface relative with this light output surface; And
One light extraction pattern, is made up of a plurality of oval shrinkage pool, is positioned at this bottom surface;
Respectively this light incident sides of longer axis parallel of this oval shrinkage pool, minor axis this light incident sides vertical.
Preferably, respectively the minor axis of this oval shrinkage pool and major axis ratio between 0.3 to 0.9.Thus, oval shrinkage pool can tackle the light entering edge-type light guide plate effectively, makes light be able to be penetrated by light output surface.
Positive progressive effect of the present utility model is: the utility model can illuminate the display floater of transparent display or e-book effectively and equably, thus makes user can read the picture of transparent display or e-book display under low lighting environment.
Accompanying drawing explanation
Fig. 1 is the perspective view of the light source module of the utility model embodiment 1.
Fig. 2 is the enlarged partial sectional view of the light guide plate of the utility model embodiment.
Fig. 3 is the enlarged partial sectional view of the light guide plate of the utility model embodiment.
The perspective view of the light source module of Fig. 4 the utility model embodiment 2.
Description of reference numerals:
1,1a: light source module
10: light-emitting component
12: edge-type light guide plate
120: body
1202: light incident sides
1204: light output surface
1206: bottom surface
122: light extraction pattern
1222: get light shrinkage pool
1224: first surface
1226: second surface
I: optical axis
Detailed description of the invention
Come by reference to the accompanying drawings clearlyer intactly the utility model to be described below by way of two embodiments of the present utility model.
Embodiment 1
As shown in Figure 1, the light source module shown in Fig. 1 is the perspective view of the light source module in the present embodiment.Light source module 1 shown in Fig. 1 is applied to transparent display or e-book, in order to provide the light source of the display floater illuminating transparent display or some wordbook.During actual use, light source module 1 is the display floater front being arranged on transparent display or e-book, and that is, this novel shown light source module is front optical mode group.
Light source module 1 comprises light-emitting component 10 and an edge-type light guide plate 12.Light-emitting component 10 is spot light, and can be realized by light emitting diode, but does not also get rid of other possibilities; Light-emitting component 10 has optical axis I, and it is the symmetry axis of the light that sends of light-emitting component 10 light intensity distributions in space.
Edge-type light guide plate 12 comprises a body 120 and light extraction pattern 122.Body 120 is in tabular, light-permeable, usually be made up of acryl (PMMA) or plastics (PC), but also do not get rid of other equivalents, such as: at least one material in acrylic resin (Acrylic Resin), cyclic olefin polymer (COC), polymethyl methacrylate (PMMA), Merlon (PC), PEI (Polyetherimide), fluorocarbon polymer (Fluorocarbon Polymer) or constituent material group of silica gel (Silicone) institute or other replaceable material.
Body 120 comprises light incident sides 1202, light output surface 1204 and bottom surface 1206, and light output surface 1204 is adjacent to light incident sides 1202, and light-emitting component 10 is installed on light incident sides 1202, and preferably, the optical axis I of light-emitting component 10 is perpendicular to light-entering surface 1202.
Light extraction pattern 122 is positioned at light output surface 1204, and light extraction pattern 122, in order to guide the light entering edge-type light guide plate 12, makes this light be penetrated equably by light output surface 1204.Light extraction pattern 122 is made up of a plurality of light micro-structural of getting, and each light micro-structural of getting is formed at light output surface 1204.To illustrate at this: light extraction pattern 122 also can be formed in the bottom surface 1206 of edge-type light guide plate 12, the light extraction pattern 122 being formed in bottom surface 1206 equally also can tackle the light entering edge-type light guide plate 12, and light is penetrated by light output surface 1204.In the present embodiment, this gets light micro-structural for getting light shrinkage pool 1222.
As shown in Figure 2, by the depression angle of edge-type light guide plate 12, each external form ovalize getting light micro-structural; In other words, light extraction pattern 122 is made up of the oval shrinkage pool of plural number, and the long axis direction of each oval shrinkage pool is parallel to light incident sides 1202, and short-axis direction is perpendicular to light incident sides 1202.
As shown in Figure 3, each light micro-structural of getting is shrinkage pool shape, and by getting the side surface of light micro-structural, is be made up of first surface 1224 and second surface 1226, and in the present embodiment, first surface 1224 and second surface 1226 coordinate the section forming and take the shape of the letter U.The some light entering edge-type light guide plate 12 is reflected by first surface 1224 and direction towards bottom surface 1206 is transmitted, other some light are after first surface 1224 reflects, second surface 1226 is passed to via air dielectric, and away from edge-type light guide plate 12 after being reflected by second surface 1226; Certainly, again enter edge-type light guide plate 12 after also having the light of only a few can be reflected by second surface 1226, and the light of only a few directly by first surface 1224 reflect after namely away from edge-type light guide plate 12.
Moreover each light micro-structural of getting is less than it at the length L being parallel to light incident sides 1202 direction at the length W perpendicular to light incident sides 1202 direction, as shown in Figure 2.By this kind of design, the probability that the light contacts entering edge-type light guide plate 12 gets light micro-structural can be improved, and getting surface reflection or the refraction of light micro-structural, penetrated by light output surface 1204 to change bang path.
In the present embodiment, each ratio of light micro-structural in the length length in light incident sides 1202 direction in parallel perpendicular to light incident sides 1202 direction of getting is between 0.3 to 0.9.In the present embodiment, present with oval shrinkage pool because getting light micro-structural, and the long axis direction of each oval shrinkage pool is parallel to light incident sides 1202, short-axis direction is perpendicular to light incident sides 1202, therefore, the minor axis of oval shrinkage pool and major axis ratio are between 0.3 to 0.9.
If get light micro-structural to be less than 0.3 in the length length ratio value in light incident sides 1202 direction in parallel perpendicular to light incident sides 1202 direction, then can intercept too much light, this can allow edge-type light guide plate 12 cannot effectively be illuminated in the side (i.e. distance light side) away from light-emitting component 10, and produce area source heterogeneous, thus, also just cannot illuminate the transparent display or e-book furnished below light source module 1 uniformly, and user may be caused to view and admire the sense of discomfort of transparent display or e-book.And if get the minor axis of light micro-structural and major axis ratio is greater than 0.9, then without significantly blocking light effect, therefore also just cannot provide ornaments transparent display thereunder or the enough light sources of e-book.
In addition, the light micro-structural (or claiming oval shrinkage pool) of getting of the present embodiment increases along with away from light incident sides 1202 gradually at the layout density of light output surface 1204; That is, the layout density getting light shrinkage pool 1222 away from light-emitting component 10 installation site (distance light place) is less than at the layout density getting light shrinkage pool 1222 near light-emitting component 10 installation site (dipped beam place), thus the light micro-structural of getting because of dipped beam place can be avoided to tackle too much light and distance light place cannot be lighted effectively, or light goes out photogenic non-homogeneous area source situation by distance light place and produces.In other words, getting the layout density of the layout density of light micro-structural at dipped beam place higher than distance light place through making, light source module 1 can be made to produce uniform area source.
Embodiment 2
As shown in Figure 4, the light source module in Fig. 4 is the perspective view of the light source module in the present embodiment.Light source module 1a comprises at least one light-emitting component 10 and an edge-type light guide plate 12, and edge-type light guide plate 12 comprises a body 120 and plural number gets light shrinkage pool 1222; Body 120 is in tabular, and light-permeable, is made up of acryl or plastics usually.
Body 120 comprises light incident sides 1202, light output surface 1204 and a bottom surface 1206; Light-emitting component 10 is installed on light incident sides 1202, and light output surface 1204 is adjacent to light-entering surface 1202, and bottom surface 1206 is relative to light output surface 1204 also adjacent light-entering surface 1202.Get light shrinkage pool 1222 and be formed at bottom surface 1206, and cave in towards the direction of light output surface 1204; Get light shrinkage pool 1222 in order to stop the light entering edge-type light guide plate 12, light is penetrated by light output surface 1204.
Get light shrinkage pool 1222 by depression angle (as shown in Figure 2), its external form is substantially oblong-shaped, and each light shrinkage pool 1222 of getting is less than it in the length perpendicular to optical axis I direction in the length in the optical axis I direction being parallel to light-emitting component 10, thus the light entering edge-type light guide plate 12 can be blocked getting the length of light shrinkage pool 1222 perpendicular to optical axis I direction, make the going direction changing of light and penetrated by light output surface 1204.
Secondly, get light shrinkage pool 1222 in the perpendicular length ratio value in optical axis I direction of the length being parallel to optical axis I direction between 0.3 to 0.9, can be penetrated by light output surface 1204 to make entering light most in edge-type light guide plate 12, and the abundance and uniform radiation source of viewing and admiring transparent display or e-book are provided.
If get light shrinkage pool 1222 to be less than 0.3 in the length length ratio value in light incident sides 1202 direction in parallel perpendicular to light incident sides 1202 direction, then can intercept too much light, this can allow the light entering edge-type light guide plate 12 cannot be passed to distance light place, and the dimness making the brightness at distance light place next compared with dipped beam place, and then the transparent display or e-book furnished below light source module 1a cannot be illuminated uniformly, and user may be caused to view and admire the sense of discomfort of transparent display or e-book.And if get the minor axis of light micro-structural 1222 and major axis ratio is greater than 0.9, then without significantly blocking light effect, therefore also just cannot provide ornaments transparent display thereunder or the enough light sources of e-book.
Secondly, the layout density that light shrinkage pool 1222 is formed in bottom surface 1206 of getting of the present embodiment increases gradually along with away from light incident sides 1202, that is, the layout density getting light shrinkage pool 1222 away from light-emitting component 10 installation site is less than at the layout density getting light shrinkage pool 1222 near light-emitting component 10 installation site, thus the amount that light penetrates by light output surface 1204 can be adjusted, and then provide the area source of uniform luminance.
In addition, illustrate: the present embodiment get the light output surface 1204 that light shrinkage pool 1222 also can be formed in the body 120 of edge-type light guide plate 12, and cave in towards the direction of bottom surface 1206, so, also can tackle the light entering edge-type light guide plate 12, light is penetrated by light output surface 1204.
Although the foregoing describe detailed description of the invention of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection domain of the present utility model.
Claims (10)
1. light source module, is applied to transparent display, it is characterized in that, this light source module comprises:
One light-emitting component, has an optical axis; And
One light guide plate, comprises:
One body, comprise a light incident sides and a light output surface, this light-emitting component is installed on this light incident sides, and this light output surface is adjacent to this light incident sides; And
Plural number gets light shrinkage pool, is formed at this light output surface, and respectively this is got light shrinkage pool and is less than it in the length perpendicular to this optical axis direction in the length being parallel to this optical axis direction.
2. light source module as claimed in claim 1, is characterized in that, respectively this is got light shrinkage pool and is being parallel to the length of this optical axis direction and it should perpendicular to the ratio of the length of this optical axis direction between 0.3 to 0.9.
3. an edge-type light guide plate, is characterized in that, this edge-type light guide plate comprises:
One transparent plate body, comprises a light incident sides and a light output surface; And
A plurality ofly get light micro-structural, be formed at this light output surface, respectively this gets light micro-structural is shrinkage pool shape, and it is less than it in the length being parallel to this light incident sides direction in the length perpendicular to this light incident sides direction.
4. edge-type light guide plate as claimed in claim 3, is characterized in that, respectively this get light micro-structural perpendicular to this light incident sides direction length and its this be parallel to the ratio of the length in this light incident sides direction between 0.3 to 0.9.
5. an edge-type light guide plate, is characterized in that, this edge-type light guide plate comprises:
One transparent plate body, comprises a light incident sides, a light output surface, and a bottom surface relative with this light output surface; And
A plurality ofly get light micro-structural, be formed at this bottom surface, respectively this gets light micro-structural is shrinkage pool shape, and it is less than it in the length being parallel to this light incident sides direction in the length perpendicular to this light incident sides direction.
6. edge-type light guide plate as claimed in claim 5, is characterized in that, respectively this get light micro-structural perpendicular to this light incident sides direction length and its this be parallel to the ratio of the length in this light incident sides direction between 0.3 to 0.9.
7. an edge-type light guide plate, is characterized in that, this edge-type light guide plate comprises:
One transparent plate body, comprises a light incident sides and a light output surface; And
One light extraction pattern, is made up of a plurality of oval shrinkage pool, is positioned at this light output surface;
Respectively this light incident sides of longer axis parallel of this oval shrinkage pool, minor axis this light incident sides vertical.
8. edge-type light guide plate as claimed in claim 7, is characterized in that, respectively the minor axis of this oval shrinkage pool and major axis ratio are between 0.3 to 0.9.
9. an edge-type light guide plate, is characterized in that, this edge-type light guide plate comprises:
One transparent plate body, comprises a light incident sides, a light output surface, and a bottom surface relative with this light output surface; And
One light extraction pattern, is made up of a plurality of oval shrinkage pool, is positioned at this bottom surface;
Respectively this light incident sides of longer axis parallel of this oval shrinkage pool, minor axis this light incident sides vertical.
10. edge-type light guide plate as claimed in claim 9, is characterized in that, respectively the minor axis of this oval shrinkage pool and major axis ratio are between 0.3 to 0.9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026296.4U CN204494198U (en) | 2015-01-14 | 2015-01-14 | Light source module and light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026296.4U CN204494198U (en) | 2015-01-14 | 2015-01-14 | Light source module and light guide plate |
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| CN204494198U true CN204494198U (en) | 2015-07-22 |
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| CN201520026296.4U Expired - Fee Related CN204494198U (en) | 2015-01-14 | 2015-01-14 | Light source module and light guide plate |
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| Country | Link |
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| CN (1) | CN204494198U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182486A (en) * | 2015-07-27 | 2015-12-23 | 苏州向隆塑胶有限公司 | Light source module and light guide plate |
| CN105929481A (en) * | 2016-07-15 | 2016-09-07 | 周翠敏 | Backlight module and light guide plate thereof |
| CN106094096A (en) * | 2016-08-17 | 2016-11-09 | 京东方科技集团股份有限公司 | A kind of light guide plate, backlight module and display device |
| CN106289728A (en) * | 2016-08-19 | 2017-01-04 | 苏州茂立光电科技有限公司 | Naked regarding plate optic test tool and using method thereof |
| CN110579835A (en) * | 2019-10-09 | 2019-12-17 | 苏州茂立光电科技有限公司 | Light guide plate capable of improving hot spot phenomenon and light emitting device |
-
2015
- 2015-01-14 CN CN201520026296.4U patent/CN204494198U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182486A (en) * | 2015-07-27 | 2015-12-23 | 苏州向隆塑胶有限公司 | Light source module and light guide plate |
| CN105182486B (en) * | 2015-07-27 | 2018-09-07 | 苏州向隆塑胶有限公司 | Light source module group and light guide plate |
| CN105929481A (en) * | 2016-07-15 | 2016-09-07 | 周翠敏 | Backlight module and light guide plate thereof |
| CN106094096A (en) * | 2016-08-17 | 2016-11-09 | 京东方科技集团股份有限公司 | A kind of light guide plate, backlight module and display device |
| US10459150B2 (en) | 2016-08-17 | 2019-10-29 | Boe Technology Group Co., Ltd. | Light guide plate, backlight module and display device |
| CN106289728A (en) * | 2016-08-19 | 2017-01-04 | 苏州茂立光电科技有限公司 | Naked regarding plate optic test tool and using method thereof |
| CN106289728B (en) * | 2016-08-19 | 2019-03-12 | 苏州茂立光电科技有限公司 | Naked view plate optic test jig and its application method |
| CN110579835A (en) * | 2019-10-09 | 2019-12-17 | 苏州茂立光电科技有限公司 | Light guide plate capable of improving hot spot phenomenon and light emitting device |
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Granted publication date: 20150722 |