CN203202914U - Light guide module - Google Patents
Light guide module Download PDFInfo
- Publication number
- CN203202914U CN203202914U CN 201320143542 CN201320143542U CN203202914U CN 203202914 U CN203202914 U CN 203202914U CN 201320143542 CN201320143542 CN 201320143542 CN 201320143542 U CN201320143542 U CN 201320143542U CN 203202914 U CN203202914 U CN 203202914U
- Authority
- CN
- China
- Prior art keywords
- point structure
- light
- lattice point
- guiding film
- leaded light
- 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 - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The utility model provides a light guide module which comprises an LED light source and a light guide film. The light guide film comprises a top surface, a bottom surface and lateral surfaces. The LED light source is arranged opposite to the lateral surfaces of the light guide film. A light guide net point structure for changing the propagation direction of light beams in the light guide film is arranged on part of the bottom surface of the light guide film. Other zones of the light guide film except the light guide net point structure are transparent or semitransparent zones. The light guide net point structure comprises a first light guide net point structure and a second light guide net point structure. The first light guide net point structure is arranged on the edge of the bottom surface and close to the LED light source. The second light guide net point structure is arranged on the zone, far away from the LED light source, of the bottom surface.
Description
Technical field
The utility model relates to a kind of leaded light module.
Background technology
Under the trend of ultra-thin energy-saving, the leaded light module that includes light guiding film progressively becomes the electronic product key preferred products backlight such as mobile phone.The common thickness of light guiding film is less than 0.35mm, thickness than led light source is thinner, add the shading reflective sheeting on led light source top and light guiding film arrival end top, improve the utilization ratio of optics, close to some light key offset of light guiding film is crossed from the LED lamp when (less than about 3mm), having many light in light source coupling place is not coupled and directly enters leaded light device, but from process shading reflective sheeting, partially absorb, again enter light guiding film after the part reflection, total reflection part light can be directly from closing on the direct outgoing of light source, thereby make this part light-emitting zone very bright.
Common way is to strengthen the fore-and-aft distance of led light source and light-emitting zone, or increases new light shield device, but because the restriction of handset structure space and the thickness of light guiding film own, implementing to increase extra cost.
The utility model content
For solving the inhomogeneous technical problem of leaded light module leaded light, the utility model provides a kind of leaded light module.
A kind of leaded light module that the utility model provides comprises: led light source; Light guiding film, described light guiding film comprises end face, bottom surface and side, the side of described led light source and light guiding film is oppositely arranged, the part bottom surface of light guiding film is provided with for the leaded light lattice point structure that changes light beam direction of propagation in light guiding film, described light guiding film other zones except the leaded light lattice point structure are transparent or semitransparent zone, described leaded light lattice point structure comprises the first leaded light lattice point structure and the second leaded light lattice point structure, described the first leaded light lattice point structure is arranged on bottom edge and near the led light source place, and described the second leaded light lattice point structure is arranged on the bottom surface zone away from led light source.
Further, described the first lattice point structure integral body is trapezoidal or rectangle or polygon.
Further, described led light source is two, and two sides with light guiding film are oppositely arranged respectively, and described the first leaded light lattice point structure is arranged on both sides of the edge, bottom surface and close led light source place.
Further, described the first lattice point structure comprises some the first site microprisms, and described the second lattice point structure comprises some the second site microprisms, and described the first site microprism size and density are greater than size and the density of the second site microprism.
Further, the diameter range of described the first lattice point structure microprism is 40 μ m ~ 85 μ m.
Further, the spacing range of the adjacent microprism of described the first lattice point structure is 0.2 mm ~ 0.6mm.
Further, the first lattice point structure cross section is semicircle or dihedral, arc or square.
Further, described the second lattice point structure is arranged to dredging by close according to the distance of distance L ED light source.
Further, described leaded light module also comprises: light-shielding sheet, described light-shielding sheet are positioned at led light source top and end face top.
The utility model provides a kind of leaded light module, by being provided with the first lattice point structure at light guiding film light beam outgoing plane opposite face and near the led light source place, on light beam outgoing plane opposite face, also be provided with the second lattice point structure that changes light beam direction of propagation in light guiding film, the size of described the first lattice point structure and density are greater than the second lattice point structure, the effect of the first lattice point structure is to change light beam direction of propagation in light guiding film, in light guiding film, carry out Multi reflection and refraction so that be injected into the light beam in the first lattice point structure zone, so that form irreflexive effect through the light beam in this first lattice point structure zone, so that described light beam can penetrate the light beam outgoing plane of light guiding film uniformly, reduced oblique emergent ray, avoid the nearlyer light-emitting zone of distance L ED light source by oblique light direct irradiation and excessively bright problem, improved the leaded light uniformity of light guiding film integral body.
Description of drawings
Fig. 1 is the utility model embodiment leaded light module schematic top plan view.
Fig. 2 is the utility model embodiment leaded light module schematic cross-section.
The specific embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only be for convenience of description the utility model and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
Below in conjunction with drawings and Examples the utility model is described further.
To shown in Figure 2, the utility model provides a kind of leaded light module, comprising such as Fig. 1:
Led light source 10;
Light guiding film 20, described light guiding film 20 comprises end face 211, bottom surface 212 and side 213, described led light source 10 is oppositely arranged with the side 213 of light guiding film 20, the part bottom surface 212 of light guiding film 20 is provided with for changing the leaded light lattice point structure of light beam in the light guiding film 20 interior directions of propagation, described light guiding film 20 other zones except the leaded light lattice point structure are transparent or semitransparent zone, described leaded light lattice point structure comprises the first leaded light lattice point structure 22 and the second leaded light lattice point structure 23, described the first leaded light lattice point structure 22 is arranged on 212 edges, bottom surface and near led light source 10 places, and described the second leaded light lattice point structure 23 is arranged on the bottom surface 212 zone away from led light source 10.
Concrete, described led light source 10 is the side-emitting LED light source, sends light beam towards a side of light guiding film 20.Described led light source 10 is two, and two sides 213 with light guiding film 20 are oppositely arranged respectively, and described the first leaded light lattice point structure 22 is arranged on 212 both sides of the edge, bottom surface and close led light source 10 places.
Concrete, light guiding film 20 common thickness are less than 0.35mm, and as shown in Figure 2, the thickness of light guiding film 20 is thinner than the thickness of led light source 10.By being provided with the first lattice point structure at light guiding film end face 211 opposite faces and near the led light source place, on end face 211 opposite faces, also be provided with and change light beam at the second lattice point structure 23 of the light guiding film 20 interior directions of propagation, the size of described the first lattice point structure 22 and density are greater than the second lattice point structure 23, the first lattice point structure 22 is used for changing the direction of propagation of light beam in light guiding film 20, in light guiding film 20, carry out Multi reflection and refraction so that be injected into the light beam in the first lattice point structure 22 zones, so that form irreflexive effect through the light beam in these the first lattice point structure 22 zones, so that described light beam can penetrate the end face 211 of light guiding film 20 uniformly, reduced oblique emergent ray, avoided apart from the nearlyer light-emitting zone of light source having improved the leaded light uniformity of light guiding film 20 integral body by oblique light direct irradiation and excessively bright problem.
Described the first lattice point structure 22 integral body are trapezoidal, but embodiment of the present utility model is not limited to this, this structural entity can also be rectangular, polygon or other shapes, mainly decides according to led light source 10 socket shapes, and the effect of similar socket shape is more excellent.
Described the first lattice point structure 22 comprises some the first site microprisms, and the diameter range of described the first lattice point structure 22 microprisms is 40 μ m ~ 85 μ m, and the spacing range of described the first lattice point structure 22 adjacent microprisms is 0.2 mm ~ 0.6mm.Need to prove, the cross section of described the first lattice point structure 22 is semicircle as shown in Figure 2, but embodiment of the present utility model is not limited to this, also can adopt triangle, arc or square etc. such as the cross section of the first lattice point structure 22.
Light guiding film 20 bottoms also are provided with and change light beam at the second lattice point structure 23 of the light guiding film 20 interior directions of propagation, described the second lattice point structure 23 comprises some the second site microprisms, and described the first site microprism size and density are greater than size and the density of the second site microprism.Described the second lattice point structure 23 is arranged to dredging by close according to the distance of distance L ED light source 10.The effect of the second lattice point structure 23 is so that enter the end face 211 that the light of light guiding film 20 can evenly penetrate light guiding film 20, and its operation principle is identical with the first lattice point structure 22.
Further, described leaded light module also comprises:
Light-shielding sheet 30, described light-shielding sheet 30 are positioned at led light source 10 tops and light guiding film 20 end faces 211 tops.Described light-shielding sheet 30 directly sticks on led light source 10 tops and light guiding film 20 end faces 211 tops.The effect of light-shielding sheet 30 is to absorb and the reflecting part light beam, improves the light source utilization rate.
As shown in Figure 2, if light guiding film 20 bottoms during without the first lattice point structure 22, light beam enters light guiding film 20 again from light guiding film 20 reflections from the reflection of light-shielding sheet 30 parts, and the direct oblique outgoing of a part is so that led light source and zone, light guiding film joint are excessively bright; When if the first lattice point structure 22 is arranged at light guiding film 20 bottoms, the light beam that reflects back from photomask 30 runs into the first lattice point structure 22, thereby change the direction of propagation and from light guiding film 20 forward outgoing, after again running into photomask 30, segment beam is reflected, and part is absorbed, thereby reduces the light beam of oblique outgoing, weaken the brightness of the nearlyer light-emitting zone of distance L ED light source, improved the whole uniformity of light guiding film.Need to prove, light circuit shown in Figure 2 is not unique, only is example.
The leaded light module that the utility model provides, can make light guiding film not restructure, not increase in the situation of new assembly, greatly improved the bright spot problem that led light source and light guiding film joint are prone to, improve integral body and gone out uniformity of light, and so that the design of leaded light module light-shielding sheet black surround part can be narrower, improved the aesthetic property of outward appearance.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a leaded light module is characterized in that, comprising:
Led light source (10);
Light guiding film (20), described light guiding film (20) comprises end face (211), bottom surface (212) and side (213), described led light source (10) is oppositely arranged with the side (213) of light guiding film (20), the part bottom surface (212) of light guiding film (20) is provided with for the leaded light lattice point structure that changes light beam direction of propagation in light guiding film (20), described light guiding film (20) other zones except the leaded light lattice point structure are transparent or semitransparent zone, described leaded light lattice point structure comprises the first leaded light lattice point structure (22) and the second leaded light lattice point structure (23), described the first leaded light lattice point structure (22) is arranged on (212) edge, bottom surface and locates near led light source (10), and described the second leaded light lattice point structure (23) is arranged on upper zone away from led light source (10), bottom surface (212).
2. a kind of leaded light module according to claim 1 is characterized in that, described the first lattice point structure (22) integral body is trapezoidal or rectangle or polygon.
3. a kind of leaded light module according to claim 1, it is characterized in that, described led light source (10) is two, two sides (213) with light guiding film (20) are oppositely arranged respectively, and described the first leaded light lattice point structure (22) is arranged on (212) both sides of the edge, bottom surface and locates near led light source (10).
4. a kind of leaded light module according to claim 1, it is characterized in that, described the first lattice point structure (22) comprises some the first site microprisms, described the second lattice point structure (23) comprises some the second site microprisms, and described the first site microprism size and density are greater than size and the density of the second site microprism.
5. a kind of leaded light module according to claim 4 is characterized in that, the diameter range of described the first lattice point structure (22) microprism is 40 μ m ~ 85 μ m.
6. a kind of leaded light module according to claim 4 is characterized in that, the spacing range of the adjacent microprism of described the first lattice point structure (22) is 0.2 mm ~ 0.6mm.
7. a kind of leaded light module according to claim 1 is characterized in that, the first lattice point structure (22) cross section is semicircle or dihedral, arc or square.
8. a kind of leaded light module according to claim 1 is characterized in that, described the second lattice point structure (23) is arranged to dredging by close according to the distance of distance L ED light source (10).
9. the described leaded light module of any one is characterized in that according to claim 1-8, and described leaded light module also comprises:
Light-shielding sheet (30), described light-shielding sheet (30) are positioned at led light source (10) top and end face (211) top.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143542 CN203202914U (en) | 2013-03-27 | 2013-03-27 | Light guide module |
| PCT/CN2014/074020 WO2014154128A1 (en) | 2013-03-27 | 2014-03-25 | Light guide module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143542 CN203202914U (en) | 2013-03-27 | 2013-03-27 | Light guide module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202914U true CN203202914U (en) | 2013-09-18 |
Family
ID=49147019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320143542 Expired - Lifetime CN203202914U (en) | 2013-03-27 | 2013-03-27 | Light guide module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203202914U (en) |
| WO (1) | WO2014154128A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014154128A1 (en) * | 2013-03-27 | 2014-10-02 | Shenzhen Byd Auto R&D Company Limited | Light guide module |
| CN104676449A (en) * | 2014-12-31 | 2015-06-03 | 苏州通尔泰新材料科技有限公司 | LED (light emitting diode) light shading film with convex groove structure |
| CN110690066A (en) * | 2018-07-06 | 2020-01-14 | 阿尔派株式会社 | Switching device |
| CN114325922A (en) * | 2021-12-14 | 2022-04-12 | 深圳市帝显电子有限公司 | Non-rectangular display backlight module and manufacturing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11364910B1 (en) | 2021-08-26 | 2022-06-21 | Motional Ad Llc | Emergency vehicle detection system and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7165856B2 (en) * | 2005-02-22 | 2007-01-23 | Chunghwa Picture Tubes, Ltd. | Light-duide plate and backlight module |
| KR20060124405A (en) * | 2005-05-31 | 2006-12-05 | 삼성전자주식회사 | Back light assembly and liquid crystal display having the same |
| US8570270B2 (en) * | 2009-10-19 | 2013-10-29 | Apple Inc. | Backlight unit color compensation techniques |
| CN102537754A (en) * | 2010-12-14 | 2012-07-04 | 上海蓝光科技有限公司 | Sidelight type backlight source module |
| CN202216178U (en) * | 2011-09-13 | 2012-05-09 | 青岛海信电器股份有限公司 | Light guide plate and backlight module |
| CN102829393B (en) * | 2012-08-01 | 2015-04-15 | 深圳市华星光电技术有限公司 | Illuminating component |
| CN203202914U (en) * | 2013-03-27 | 2013-09-18 | 比亚迪股份有限公司 | Light guide module |
-
2013
- 2013-03-27 CN CN 201320143542 patent/CN203202914U/en not_active Expired - Lifetime
-
2014
- 2014-03-25 WO PCT/CN2014/074020 patent/WO2014154128A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014154128A1 (en) * | 2013-03-27 | 2014-10-02 | Shenzhen Byd Auto R&D Company Limited | Light guide module |
| CN104676449A (en) * | 2014-12-31 | 2015-06-03 | 苏州通尔泰新材料科技有限公司 | LED (light emitting diode) light shading film with convex groove structure |
| CN110690066A (en) * | 2018-07-06 | 2020-01-14 | 阿尔派株式会社 | Switching device |
| CN114325922A (en) * | 2021-12-14 | 2022-04-12 | 深圳市帝显电子有限公司 | Non-rectangular display backlight module and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014154128A1 (en) | 2014-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203202914U (en) | Light guide module | |
| CN203365718U (en) | A light guiding plate and a backlight source | |
| CN104620041B (en) | Planar light source device and use the display device of this planar light source device | |
| CN104864362A (en) | Reflection Structure, Light Guide Body, Light Emitting Device, And Game Machine | |
| CN104503140A (en) | Display device | |
| KR102147253B1 (en) | Light guide panel, backlight unit and liquid crystal display comprising the same | |
| CN206818904U (en) | Composite construction bright enhancement film and backlight module | |
| CN103672537B (en) | A kind of LED lamp bar, backlight source module and display unit | |
| CN203686878U (en) | Novel LED backlight lens and liquid crystal display backlight screen | |
| CN103939799B (en) | A kind of backlight module and liquid crystal indicator | |
| CN204462594U (en) | A kind of display device | |
| CN205374796U (en) | Glass light guide plate and liquid crystal display module thereof | |
| CN204387964U (en) | A kind of seamless spliced light guide plate device | |
| CN104896366B (en) | A kind of backlight module, display module and display device | |
| CN212808683U (en) | Special-shaped screen point for improving brightness | |
| CN104791665A (en) | Backlight module, display device and diffusion plate | |
| CN102661574B (en) | Light guide plate and backlight mould provided with same | |
| CN204313107U (en) | A kind of LED light source module, LED lamp bar and down straight aphototropism mode set | |
| CN204328883U (en) | A kind of high backlight arrangement covering diffuser plate and a kind of display | |
| CN104656183A (en) | Light guide plate component and display device | |
| CN203744019U (en) | Backlight source, backlight module and display device | |
| CN202303056U (en) | Backlight and display device | |
| CN103090272B (en) | A kind of down straight aphototropism mode set and display unit | |
| CN204479789U (en) | Light guide plate, backlight source module and liquid crystal display module | |
| CN202033494U (en) | Light guide plate, back light source and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
|
| CX01 | Expiry of patent term |