CN105278164A - Bluelight LD multi-tooth reflective transmitting backlight module structure - Google Patents
Bluelight LD multi-tooth reflective transmitting backlight module structure Download PDFInfo
- Publication number
- CN105278164A CN105278164A CN201510785639.XA CN201510785639A CN105278164A CN 105278164 A CN105278164 A CN 105278164A CN 201510785639 A CN201510785639 A CN 201510785639A CN 105278164 A CN105278164 A CN 105278164A
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- Prior art keywords
- tooth
- light
- multiple tooth
- reflecting
- blue light
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a bluelight LD multi-tooth reflective transmitting backlight module, structure wherein the outer side of a multi-tooth light reflecting system is tooth-shaped and furthermore a total-reflection film layer is plated on a non-light-emitting surface for reflecting light. When the light which is transmitted from a blue-light LD passes through the multi-tooth light reflecting system, the light is reflected to the tooth-shaped surface, thereby making the light be emitted out of the opposite surface of the tooth-shaped surface of the multi-tooth light reflecting system. A transparent jelly which is mixed with a red phosphor powder and a green phosphor powder is uniformly plated on the opposite surface, therefore the light activates the phosphor powders on the opposite surface in emitting out of the opposite surface and white light is obtained through mixing and output. The output white light enters a back board, and horizontally incident light is vertically output uniformly under the specific effect of a light guide board in the back board. Furthermore a purpose of back board illumination is realized. The bluelight LD multi-tooth reflective transmitting backlight module has advantages of simple structure, small size, small weight, compact structure, low equipment investment, simple production process and high product yield rate.
Description
Technical field
The present invention relates to the multiple tooth reflective back panel illumination modular structure of a kind of reflective back lighting modular structure, particularly blue light LD.
Background technology
Laser display has that colour gamut is large, color saturation is high, energy-conserving and environment-protective and the advantage such as the life-span is long, is considered to the display technique of new generation after black and white, colour, digital high-definition.In laser display, more to laser projection display technology research, relative maturity; About the research of laser planeplate display technique is also little.The quality of backlight performance directly affects the performance index such as color, brightness uniformity, power consumption of laser planeplate display device.The requirement of, low-power consumption thin to the high brightness of backlight, favorable luminance homogeneity and colour rendering, shape etc. is necessary.The professional person being engaged in liquid crystal industry both at home and abroad pays much attention to the development of high-performance backlight product-derived always.In conjunction with the advantage of laser display and liquid crystal flat-panel display technique, Study of Laser liquid crystal flat-panel display gordian technique, not only has Important Academic meaning, and has huge applications and be worth.
Backlight module is the photo engine of liquid crystal display, is the ingredient that liquid crystal display must not or lack.Along with the development of technology, the following aspects is required to its backlight module: volume is little, lightweight, compact conformation.Light source will have higher luminescence efficiency, uniformity of luminance and brightness.There are higher colour temperature and good colour rendering.Its backlight being applied to some special occasions requires to have anti-vibration, impact-resistant characteristic.Normal service life is long, safety and environmental protection.Laser being used for liquid crystal flat-panel display is exactly use laser as the backlight module of light source, needs brightness is high, that good directionality, monochromaticity are good laser beam to be converted into uniform area source.Also not be not applied to the report of liquid crystal flat-panel display research at home about laser, but occur the product of being correlated with and experimental study abroad.
Summary of the invention
The object of the invention is to design that a kind of structure is simple, volume is little, lightweight, the LD back lighting modular structure of compact conformation, has equipment investment few, and production technology is simple, the advantage that finished product rate is high.
For achieving the above object, the technical solution used in the present invention is blue light LD multiple tooth reflection conduction back lighting modular structure, and this structure comprises blue light LD (1), multiple tooth catoptric system (2), backboard (3), reflector plate (4); Described multiple tooth reflecting system (2) is made up of light guide plate, and multiple tooth reflecting system (2) is arranged on the periphery of backboard (3); The lateral surface of multiple tooth reflecting system (2) is dentalation, and each flank of tooth intersection of multiple tooth reflecting system (2) is a plane of incidence and three reflectings surface, and three reflectings surface comprise reflecting surface a, reflecting surface b, reflecting surface c successively; Plane of incidence place is provided with blue light LD (1), reflector plate (4), and the plane of incidence side of multiple tooth reflecting system (2) is light inlet, and opposite side is light-emitting window; Reflector plate (4) is pasted onto light inlet, the light-emitting window place of multiple tooth reflecting system (2), penetrates to prevent light; The reflector plate (4) at multiple tooth reflecting system (2) light inlet place is provided with a cylindrical hole, is inlaid with the blue light LD (1) of a TO encapsulation, and spills the afterbody electrode of blue light LD (1) in cylindrical hole; Arrange reflector plate (4) to penetrate to prevent light.
Reflector plate (4) can also be as follows with the arrangement form of blue light LD (1): by being provided with a circular hole at multiple tooth reflecting system (2) light inlet place, be inlaid with the blue light LD (1) of a TO encapsulation in cylindrical hole and have reflector plate (4) at blue light LD (1) external pasting, only exposing the electrode of blue light LD (1).
Described three reflectings surface are non-exiting surface, and non-exiting surface is all coated with total reflection rete.
The flank of tooth of described multiple tooth reflecting system (2) is coated with reflectance coating, the flank of tooth opposite face of multiple tooth reflecting system (2) scribbles red green fluorescence powder lamination.
Profile of tooth on multiple tooth catoptric system (2) profile of tooth be distributed as between light inlet to reflecting surface a and between reflecting surface b to reflecting surface c is thin tooth; Profile of tooth between reflecting surface a to reflecting surface b is close tooth.Such structural design is the method by two-way complementation, makes the light entering into backlight even as much as possible.And again by light guide plate mesh point printing density control, can perfectly make emergent light reach evenly object.
Accompanying drawing explanation
Fig. 1 is blue light LD multiple tooth reflection backlight structure model;
Fig. 2 is the partial enlarged drawing at A place;
In figure: 1, blue light LD; 2, multiple tooth catoptric system; 3, backboard; 4, reflector plate.
Embodiment
As shown in Figure 1-2, below will be introduced it by specific embodiment.Blue light LD multiple tooth reflection back lighting modular structure, this structure and liquid crystal display with the use of, as Fig. 1.The lateral surface of multiple tooth reflecting system 2 is made dentation and is coated with total reflection rete at non-exiting surface, for reflective.When light that blue light LD1 sends out through this multiple tooth catoptric system 2 time, light can reflex on the flank of tooth, thus light can penetrate from the flank of tooth opposite face of this multiple tooth catoptric system 2.This opposite face evenly scribbles the clear gum thing being mixed with red green fluorescence powder, and therefore light is the fluorescent powder that can excite it from the injection of this face, and mixing exports white light.The white light exported enters backboard, and under the light guide plate special role in backboard, the light of glancing incidence vertically evenly exports from backboard.And then reach the object of back panel illumination.
As described in implementation process, in ZEMAX, carry out structure model, simulate this backlight, view result.In the ZEMAX model built, insert five detectors in this model, be respectively four vertical probes and perpendicular parallel detector that parallel with multiple tooth catoptric system exiting surface.
Structure model basis starts ray tracing, and by trace interpretation of result, this blue light LD multiple tooth reflective back plane illumination module light exports evenly, and effect is better, and realizability is comparatively strong, has good exploitability.
Claims (5)
1. blue light LD multiple tooth reflection conduction back lighting modular structure, is characterized in that: this structure comprises blue light LD (1), multiple tooth catoptric system (2), backboard (3), reflector plate (4); Described multiple tooth reflecting system (2) is made up of light guide plate, and multiple tooth reflecting system (2) is arranged on the periphery of backboard (3); The lateral surface of multiple tooth reflecting system (2) is dentalation, and each flank of tooth intersection of multiple tooth reflecting system (2) is a plane of incidence and three reflectings surface, and three reflectings surface comprise reflecting surface a, reflecting surface b, reflecting surface c successively; Plane of incidence place is provided with blue light LD (1), reflector plate (4), and the plane of incidence side of multiple tooth reflecting system (2) is light inlet, and opposite side is light-emitting window; Reflector plate (4) is pasted onto light inlet, the light-emitting window place of multiple tooth reflecting system (2), the reflector plate (4) at multiple tooth reflecting system (2) light inlet place is provided with a cylindrical hole, is inlaid with the blue light LD (1) of a TO encapsulation in cylindrical hole.
2. blue light LD according to claim 1 multiple tooth reflection conduction back lighting modular structure, it is characterized in that: by being provided with a circular hole at multiple tooth reflecting system (2) light inlet place, be inlaid with the blue light LD (1) of a TO encapsulation in cylindrical hole and have reflector plate (4) at blue light LD (1) external pasting, only exposing the electrode of blue light LD (1).
3. blue light LD according to claim 1 multiple tooth reflection conduction back lighting modular structure, is characterized in that: three reflectings surface are non-exiting surface, and non-exiting surface is all coated with total reflection rete.
4. blue light LD according to claim 1 multiple tooth reflection conduction back lighting modular structure, it is characterized in that: the flank of tooth of described multiple tooth reflecting system (2) is coated with reflectance coating, the flank of tooth opposite face of multiple tooth reflecting system (2) scribbles red green fluorescence powder lamination.
5. blue light LD according to claim 1 multiple tooth reflection conduction back lighting modular structure, is characterized in that: the profile of tooth be distributed as between light inlet to reflecting surface a and between reflecting surface b to reflecting surface c of the profile of tooth on multiple tooth catoptric system (2) is thin tooth; Profile of tooth between reflecting surface a to reflecting surface b is close tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785639.XA CN105278164B (en) | 2015-11-16 | 2015-11-16 | Back lighting modular structure is conducted in the multiple tooth reflection of blue light LD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785639.XA CN105278164B (en) | 2015-11-16 | 2015-11-16 | Back lighting modular structure is conducted in the multiple tooth reflection of blue light LD |
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| Publication Number | Publication Date |
|---|---|
| CN105278164A true CN105278164A (en) | 2016-01-27 |
| CN105278164B CN105278164B (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510785639.XA Active CN105278164B (en) | 2015-11-16 | 2015-11-16 | Back lighting modular structure is conducted in the multiple tooth reflection of blue light LD |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1521541A (en) * | 2003-02-08 | 2004-08-18 | 统宝光电股份有限公司 | Luminous module and planar display comprising the luminous module |
| CN2699330Y (en) * | 2004-02-27 | 2005-05-11 | 深圳市航盛电子股份有限公司 | Light guiding board with uniform backlight |
| CN1758114A (en) * | 2004-10-09 | 2006-04-12 | 台达电子工业股份有限公司 | Backlight module |
| US20140376261A1 (en) * | 2013-06-20 | 2014-12-25 | Young Lighting Technology Inc. | Back light module |
| CN205139526U (en) * | 2015-11-16 | 2016-04-06 | 北京工业大学 | Multiple tooth reflex conduction back bias module structure of blue light LD |
-
2015
- 2015-11-16 CN CN201510785639.XA patent/CN105278164B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1521541A (en) * | 2003-02-08 | 2004-08-18 | 统宝光电股份有限公司 | Luminous module and planar display comprising the luminous module |
| CN2699330Y (en) * | 2004-02-27 | 2005-05-11 | 深圳市航盛电子股份有限公司 | Light guiding board with uniform backlight |
| CN1758114A (en) * | 2004-10-09 | 2006-04-12 | 台达电子工业股份有限公司 | Backlight module |
| US20140376261A1 (en) * | 2013-06-20 | 2014-12-25 | Young Lighting Technology Inc. | Back light module |
| CN205139526U (en) * | 2015-11-16 | 2016-04-06 | 北京工业大学 | Multiple tooth reflex conduction back bias module structure of blue light LD |
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| Publication number | Publication date |
|---|---|
| CN105278164B (en) | 2019-01-11 |
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