CN206209249U - A kind of LD couples the reflective backlight module of bundling optical fiber - Google Patents
A kind of LD couples the reflective backlight module of bundling optical fiber Download PDFInfo
- Publication number
- CN206209249U CN206209249U CN201621291975.5U CN201621291975U CN206209249U CN 206209249 U CN206209249 U CN 206209249U CN 201621291975 U CN201621291975 U CN 201621291975U CN 206209249 U CN206209249 U CN 206209249U
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- Prior art keywords
- optical fiber
- light
- bundling optical
- bundling
- blue light
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Abstract
A kind of LD couples the reflective backlight module of bundling optical fiber, and bundling optical fiber includes incidence end, exit end, and exit end separates the optical fiber that several length change into arithmetic progression；The blue light LD is connected with the incidence end of bundling optical fiber, and the blue light of blue light LD irradiations is coupled into bundling optical fiber by shaping mirror, focus lamp, and is transmitted to the exit end of bundling optical fiber.The optical fiber that several length change into arithmetic progression is arrangement of gradients, and each small reflection shield is corresponding with each optical fiber.Each small reflection shield controls out the direction of light so that light preferably enters light guide plate.The LD coupling reflective backlight modules of bundling optical fiber that the utility model is provided, simple structure, small volume, lightweight, compact conformation, simple production process few with equipment investment, finished product rate advantage high.
Description
Technical field
The utility model is related to a kind of back light module unit structure, particularly LD coupling bundling optical fiber back light module unit structures.
Background technology
Laser display has the advantages that colour gamut is big, color saturation is high, energy-conserving and environment-protective and long lifespan, it is considered to be after black
In vain, the Display Technique of new generation after colored, digital high-definition.In terms of laser display, to laser projection display technology research compared with
It is many, relative maturity；Research about laser planeplate Display Technique is also little.The quality of backlight performance directly affects laser
The performance indications such as color, brightness uniformity, the power consumption of flat-panel display device.High brightness, favorable luminance uniformity to backlight
Requirement with colour rendering, the thin, low-power consumption of shape etc. is necessary.The professional person for being engaged in liquid crystal industry both at home and abroad pays much attention to always
The development of high-performance backlight product-derived.With reference to laser display and the advantage of liquid crystal flat-panel Display Technique, Study of Laser liquid crystal flat-panel
Display key technology, not only with Important Academic meaning, and with huge applications value.
Backlight module is the light engine of liquid crystal display, is the part that liquid crystal display must not or lack.With technology
Continue to develop, the requirement to its backlight module has the following aspects：Small volume, lightweight, compact conformation.Light source will have
Luminous efficiency higher, uniformity of luminance and brightness.There is colour temperature and preferable colour rendering higher.It is applied to some special
Its backlight requirement of occasion has anti-vibration, impact-resistant characteristic.Normal service life is long, safety and environmental protection.Laser is used for
Liquid crystal flat-panel shows and seeks to backlight module with laser as light source, it is necessary to by brightness is high, good directionality, monochromaticjty is good swashs
Light light beam is converted into uniform area source.It is not applied to the report of liquid crystal flat-panel display research on laser also at home, but
Occur the product and experimental study of correlation abroad.
Utility model content
The utility model solve technical problem be：How effectively light is uniformly imported in light guide plate, fundamentally
Solve the problems, such as the research and development of laser planeplate display backlight.
In order to realize the above object the utility model provides a kind of LD couples the reflective backlight module of bundling optical fiber, bag
Include blue light LD, bundling optical fiber 2, speculum 3, small reflection shield 6, flourescent sheet 4, installation flat board 5 and light guide plate 1.
Bundling optical fiber 2 includes incidence end, exit end, and exit end separates the optical fiber that several length change into arithmetic progression；Institute
State blue light LD to be connected with the incidence end of bundling optical fiber 2, the blue light of blue light LD irradiations is coupled into boundling by shaping mirror, focus lamp
Optical fiber 2, and transmitted to the exit end of bundling optical fiber 2.
The exit end of the bundling optical fiber 2 is placed in small reflection shield 6, and speculum 3 and fluorescence are fixed with small reflection shield 6
Piece 4.
Each optical fiber of the exit end of bundling optical fiber 2 corresponds to each speculum 3 respectively, and the reflecting surface of speculum 3 is reflective with small
The bottom of cover 6 is in 45 ° so that emergent ray is perpendicular with incident ray, and emergent ray is injected to up to flourescent sheet 4, and light passes through
Generation fluorescence is excited after flourescent sheet 4.
Blue light LD, bundling optical fiber 2, small reflection shield 6 are installed on installation flat board 5.
The incidence surface of light guide plate 1 is parallel with the exiting surface of small reflection shield 6, and light guide plate 1 lower surface with install flat board 5
Upper surface be generally aligned in the same plane so that derived blue light LD excite flourescent sheet 4 produce white light enter into light guide plate 1, and
Derived by the scattering process of light guide plate 1.
The blue light that blue light LD is produced is imported by bundling optical fiber 2, is uniformly divided into light beam by each light splitting fibre
Several pieces, are easy to control to import the light of light guide plate 1 so that entirety is evenly.
Flourescent sheet 4 has a certain distance with blue light LD, so beneficial to raising launching efficiency.
The flourescent sheet 4 is that fluorescent crystal piece or surface scribble thin glass sheet of fluorescent coating etc..
The optical fiber that several length change into arithmetic progression is arrangement of gradients, and each small reflection shield 6 is corresponding with each optical fiber.
Each small reflection shield 6 controls out the direction of light so that light preferably enters light guide plate 1.
The LD coupling reflective backlight modules of bundling optical fiber that the utility model is provided, simple structure, small volume are lightweight,
Compact conformation, simple production process few with equipment investment, finished product rate advantage high.
Brief description of the drawings
Fig. 1 is backlight module schematic diagram；
Fig. 2 is small reflecting cup structure figure；
Fig. 3 is backlight contour structures；
In figure：1 represents light guide plate；2 represent bundling optical fiber；3 represent speculum；4 represent flourescent sheet；5 represent installation flat board；
6 represent small reflection shield；A represents speculum installation site；B represents flourescent sheet installation site.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
The reflective backlight module schematic diagram of LD bundling optical fibers, is shown in Fig. 1.After the optical coupling that blue light LD sends enters bundling optical fiber 2
By evenly distributing for each branch optical fiber, every optical fiber one speculum 3 of correspondence is arrived by light after the reflection of speculum 3
Up to the flourescent sheet 4 in front, excite and produce light to produce white light with unnecessary blue light and enter light guide plate 1, by light guide plate 1
Scattering process after uniformly exported from light guide plate upper surface；
The speculum and flourescent sheet mentioned in embodiment 1, will be separately mounted to position A, B on small reflection shield 6, so
Both light can have been made well into light guide plate, the relative position of reflective mirror and flourescent sheet can have been kept again, see Fig. 2；
The small reflection shield mentioned in embodiment 2 is added to the situation after whole backlight module, sees Fig. 3, and this is overall profile
Structure, bundling optical fiber 2 and small reflection shield 6 are all fixed on connecting plate 5, can so ensure globality, by certain
Encapsulation, it is ensured that overall stability.
Claims (5)
1. a kind of LD couples the reflective backlight module of bundling optical fiber, it is characterised in that：The backlight module includes blue light LD, concentrated light
Fine (2), speculum (3), small reflection shield (6), flourescent sheet (4), installation flat board (5) and light guide plate (1)；
Bundling optical fiber (2) includes incidence end, exit end, and exit end separates the optical fiber that several length change into arithmetic progression；It is described
Blue light LD is connected with the incidence end of bundling optical fiber (2), and the blue light of blue light LD irradiations is coupled into boundling by shaping mirror, focus lamp
Optical fiber (2), and transmitted to the exit end of bundling optical fiber (2)；
The exit end of the bundling optical fiber (2) is placed in small reflection shield (6), be fixed with small reflection shield (6) speculum (3) and
Flourescent sheet (4)；
Each optical fiber of bundling optical fiber (2) exit end corresponds to each speculum (3) respectively, and the reflecting surface of speculum (3) is anti-with small
The bottom of light shield (6) is in 45 ° so that emergent ray is perpendicular with incident ray, and emergent ray is injected to up to flourescent sheet (4), light
Line after flourescent sheet (4) by exciting generation fluorescence；
Blue light LD, bundling optical fiber (2), small reflection shield (6) are installed in installation flat board (5).
2. a kind of LD according to claim 1 couples the reflective backlight module of bundling optical fiber, it is characterised in that：Light guide plate
(1) incidence surface is parallel with the exiting surface of small reflection shield (6), and the lower surface of light guide plate (1) and the upper table for installing flat board (5)
Face is generally aligned in the same plane so that derived blue light LD excites the white light that flourescent sheet (4) is produced to enter into light guide plate (1), and leads to
The scattering process for crossing light guide plate (1) is derived.
3. a kind of LD according to claim 1 couples the reflective backlight module of bundling optical fiber, it is characterised in that：Blue light LD is produced
Raw blue light is imported by bundling optical fiber (2), and light beam uniformly is divided into several pieces by the way that each light splitting is fine.
4. a kind of LD according to claim 1 couples the reflective backlight module of bundling optical fiber, it is characterised in that：The fluorescence
Piece (4) scribbles the thin glass sheet of fluorescent coating for fluorescent crystal piece or surface.
5. a kind of LD according to claim 1 couples the reflective backlight module of bundling optical fiber, it is characterised in that：Several length
Optical fiber into arithmetic progression change is arrangement of gradients, and each small reflection shield (6) is corresponding with each optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291975.5U CN206209249U (en) | 2016-11-28 | 2016-11-28 | A kind of LD couples the reflective backlight module of bundling optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291975.5U CN206209249U (en) | 2016-11-28 | 2016-11-28 | A kind of LD couples the reflective backlight module of bundling optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206209249U true CN206209249U (en) | 2017-05-31 |
Family
ID=58748489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621291975.5U Expired - Fee Related CN206209249U (en) | 2016-11-28 | 2016-11-28 | A kind of LD couples the reflective backlight module of bundling optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206209249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106371248A (en) * | 2016-11-28 | 2017-02-01 | 北京工业大学 | LD coupling bundled optical fiber reflection type backlight module |
-
2016
- 2016-11-28 CN CN201621291975.5U patent/CN206209249U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106371248A (en) * | 2016-11-28 | 2017-02-01 | 北京工业大学 | LD coupling bundled optical fiber reflection type backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20191128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |