CN109387980A - A kind of novel quantum dot backing structure - Google Patents
A kind of novel quantum dot backing structure Download PDFInfo
- Publication number
- CN109387980A CN109387980A CN201811464039.3A CN201811464039A CN109387980A CN 109387980 A CN109387980 A CN 109387980A CN 201811464039 A CN201811464039 A CN 201811464039A CN 109387980 A CN109387980 A CN 109387980A
- Authority
- CN
- China
- Prior art keywords
- quantum dot
- guide plate
- light guide
- light source
- led 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.)
- Pending
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Classifications
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02B6/002—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 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—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 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- 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
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- 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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
Abstract
The invention discloses a kind of novel quantum dot backing structures, it includes light guide plate and the LED light source that light guide plate side is arranged in, the side of the light guide plate is incidence surface, it is characterized by: the incidence surface of the light guide plate is equipped with continuous groove structure, red green quantum dot layer is covered on the inner surface of the groove, the LED light source is directly embedded into the groove structure of light guide plate.The invention adopts the above technical scheme, and novel quantum dot backing structure solves the problems, such as that quantum dot dosage is more, improves the luminous efficiency of quantum dot in the application, improves quantum dot to the stability problem of temperature, reduces manufacturing cost；And the structure is still suitable among common white light LEDs backlight, reduces the loss of light, is conducive to promote light efficiency.
Description
Technical field
The present invention relates to technical field of liquid crystal display, especially a kind of novel quantum dot backing structure.
Background technique
Quantum dot is as a kind of novel luminescent material, and due to its excitation purity height, emission spectrum is adjustable, luminous efficiency height etc.
Feature, it has also become the research emphasis of field of display technology.Existing quantum dot is applied to display technology and is concentrated mainly on liquid crystal back
Exist in optical mode group as backlight.And quantum dot is applied to also focus on three kinds of modes 1 in backlight module at present) on-
Chip 2) on-edge 3) on-surface, (as shown in Fig. 1).Current structure most widely used on the market is third
Kind structure, that is, on-surface, quantum dot is embedded among two layers of oxygen obstruction film, then quantum dot diaphragm is placed in LED back
Between light and liquid crystal.Although the technology is mature, and by Samsung, the leading 3M used of all big enterprises such as LG, TCL and
The QDEF(Quantum Dot Enhancement Film of Nanosys) quantum dot enhances membrane technology, but disadvantage is exactly quantum
The dosage of point is very big, at high cost.Second of structure on-edge is placed on quantum dot in seal glass tank, and side is placed in
Above LED, the quantum dot of this method consumption is less, about 1 the percent of On-surface dosage, but to the stabilization of quantum dot
Property is more demanding.The first structure On-chip is that quantum dot is potted directly into LED pipe, can maximize quantum point efficiency,
Quanta point material consumes a ten thousandth for being only about On-surface, but since this method requires quanta point material in high temperature
Environment keeps stablizing, and encapsulation technology requires height, temporarily uses this packaging method, but quantum dot without company in industry at present
Stability and water proof oxygen performance cannot be guaranteed.It is many to study other than above-mentioned three kinds of quantum dots are applied with backing structure
Structure also expands research, i.e. QDCF(Quantum Dots Color Filter to the patterning of quantum dot) quantum dot colour
Filter technology.Since the half-peak breadth FWHM of quantum dot is very narrow, technology of quantum dots is applied to quantum dot color filter can be with
It increases substantially display and shows colour gamut.Although current liquid crystal display market is by fast development in recent years almost close to full
With, but apply with research direction from the market of quantum dot it is found that the development and application of technology of quantum dots will give liquid crystal display market
Bring new vitality.
Summary of the invention
In order to solve deficiency in the prior art, the purpose of the present invention is to provide a kind of novel quantum dot backing structures.
To achieve the above object, the invention adopts the following technical scheme:
A kind of novel quantum dot backing structure comprising light guide plate, it is incidence surface that the light guide plate, which at least has one side, is also wrapped
LED light source is included, the LED light source is arranged close to incidence surface, and the incidence surface of the light guide plate is equipped with continuous groove structure, institute
It states and is covered with red green quantum dot layer on the inner surface of groove structure, the LED light source is directly embedded into the groove structure of light guide plate,
The light that the LED light source issues enters in light guide plate by the red green quantum dot layer.
The inner surface of the groove structure encapsulates red green quantum dot by coating processes coating.
The inner surface of the groove structure pastes red green quantum dot film.
The LED light source is blue light LED light source.
The circuit board of the LED light source be can reflecting short blue light material molding.
The invention adopts the above technical scheme, and novel quantum dot backing structure solves the problems, such as that quantum dot dosage is more, raising amount
The luminous efficiency of son point in the application, improves quantum dot to the stability problem of temperature, reduces manufacturing cost；And the structure is still
Among common white light LEDs backlight, the loss of light is reduced, is conducive to promote light efficiency.
Detailed description of the invention
The present invention is described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural schematic diagram that quantum dot is applied to three kinds of modes in backlight module；
Fig. 2 is a kind of novel quantum dot backing structure of the present invention；
Fig. 3 is the structural schematic diagram of light guide plate；
Fig. 4 is the structural schematic diagram of LED light source.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
The embodiment of this patent is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining this patent, and cannot be understood as a limitation of this patent.
In the description of this patent, it is to be understood that term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship, be merely for convenience of description this patent and simplify description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to this patent.
In the description of this patent, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection ", " setting " shall be understood in a broad sense, for example, it may be being fixedly linked, being arranged, may be a detachable connection, set
It sets, or is integrally connected, is arranged.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this patent.
As shown in one of attached drawing 2-4, the present invention includes light guide plate 1, and it is into light that the light guide plate 1, which at least has one side,
Face further includes LED light source 2, and the LED light source 2 is arranged close to incidence surface, and the incidence surface of the light guide plate 1 is equipped with continuous
Groove structure 11 is covered with red green quantum dot layer on the inner surface of the groove structure, and the LED light source 2 is directly embedded into leaded light
In the groove structure 11 of plate 1, the light that the LED light source 2 issues enters in light guide plate 1 by the red green quantum dot layer, this
The groove structure 11 of invention can use a variety of different shapes, such as section is square groove or section is circular groove.
As a preferred embodiment of the present invention, the inner surface of the groove encapsulates red green amount by coating processes coating
Sub- point.
As a preferred embodiment of the present invention, the inner surface of the groove pastes red green quantum dot film.
Preferably, the LED light source is blue light LED light source.
Preferably, the circuit board of the LED light source 2 be can reflecting short blue light material molding.
The incident side of light guide plate 1 is carried out special construction, the structure in current liquid crystal backlight structure by the present invention
It is characterized in that 1 incident side of light guide plate is continuous groove structure 11,11 face of groove structure is red by coating processes coating encapsulation
Green quantum dot is taken and pastes red green quantum dot film.Wherein groove structure 11 is characterized in that be adjusted flexibly, groove structure
The specification and LED light source 2 that 11 design specifications using optical design specification as standard, can consider blue light LED light source 2 are away from groove surface
Red green quantum dot spacing considers the influence of blue light light extraction efficiency and temperature to quantum dot, incidence surface and whole net-pont design
With and the factors such as anti-blue light；Blue-ray LED is directly embedded among the groove structure 11 of light guide plate 1, the PCB material of blue-ray LED
Matter can be selected it is some can reflecting short blue light material, increase the utilization efficiency of blue light.When blue light LED light source 2 is lighted, excitation is led
Red green quantum dot mixing in 1 incident side groove structure 11 of tabula rasa constitutes white light.The utility model structure is still suitable for common LED
Backlight.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied, all within the spirits and principles of the present invention, any modification for being made,
(structure of light guide plate incidence surface is different such as in side entrance back module, such as rectangular hole, round for equivalent replacement, improvement etc.
Hole etc.), it should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of novel quantum dot backing structure comprising light guide plate, it is incidence surface that the light guide plate, which at least has one side, also
Including LED light source, the LED light source is arranged close to incidence surface, it is characterised in that: the incidence surface of the light guide plate is equipped with continuous
Groove structure, be covered with red green quantum dot layer on the inner surface of the groove structure, the LED light source is directly embedded into light guide plate
Groove structure in, the light that the LED light source issues enters in light guide plate by the red green quantum dot layer.
2. a kind of novel quantum dot backing structure according to claim 1, it is characterised in that: the interior table of the groove structure
Face encapsulates red green quantum dot by coating processes coating.
3. a kind of novel quantum dot backing structure according to claim 1, it is characterised in that: the interior table of the groove structure
Face paste covers red green quantum dot film.
4. a kind of novel quantum dot backing structure according to claim 1, it is characterised in that: the LED light source is blue light
LED light source.
5. a kind of novel quantum dot backing structure according to claim 1, it is characterised in that: the circuit of the LED light source
Plate be can reflecting short blue light material molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464039.3A CN109387980A (en) | 2018-12-03 | 2018-12-03 | A kind of novel quantum dot backing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464039.3A CN109387980A (en) | 2018-12-03 | 2018-12-03 | A kind of novel quantum dot backing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109387980A true CN109387980A (en) | 2019-02-26 |
Family
ID=65429218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811464039.3A Pending CN109387980A (en) | 2018-12-03 | 2018-12-03 | A kind of novel quantum dot backing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109387980A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2599716Y (en) * | 2002-12-13 | 2004-01-14 | 鸿富锦精密工业（深圳）有限公司 | Luminous device |
| CN102565921A (en) * | 2012-02-16 | 2012-07-11 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN102588851A (en) * | 2012-03-19 | 2012-07-18 | 深圳市华星光电技术有限公司 | Lateral entering type backlight module |
| CN105676341A (en) * | 2016-02-25 | 2016-06-15 | 福州大学 | Backlight module based on blue light-excited embedded quantum dot microstructure light guide plate |
| CN206863409U (en) * | 2017-05-11 | 2018-01-09 | 青岛海信电器股份有限公司 | Backlight module and liquid crystal display device |
| CN107861290A (en) * | 2017-09-16 | 2018-03-30 | 合肥惠科金扬科技有限公司 | A kind of processing technology of the framework of liquid crystal display device |
| US20180299609A1 (en) * | 2016-12-31 | 2018-10-18 | HKC Corporation Limited | Method for manufacturing backlight module |
-
2018
- 2018-12-03 CN CN201811464039.3A patent/CN109387980A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2599716Y (en) * | 2002-12-13 | 2004-01-14 | 鸿富锦精密工业（深圳）有限公司 | Luminous device |
| CN102565921A (en) * | 2012-02-16 | 2012-07-11 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN102588851A (en) * | 2012-03-19 | 2012-07-18 | 深圳市华星光电技术有限公司 | Lateral entering type backlight module |
| CN105676341A (en) * | 2016-02-25 | 2016-06-15 | 福州大学 | Backlight module based on blue light-excited embedded quantum dot microstructure light guide plate |
| US20180299609A1 (en) * | 2016-12-31 | 2018-10-18 | HKC Corporation Limited | Method for manufacturing backlight module |
| CN206863409U (en) * | 2017-05-11 | 2018-01-09 | 青岛海信电器股份有限公司 | Backlight module and liquid crystal display device |
| CN107861290A (en) * | 2017-09-16 | 2018-03-30 | 合肥惠科金扬科技有限公司 | A kind of processing technology of the framework of liquid crystal display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190226 |