CN106292068A - Quantum dot backlight module and liquid crystal indicator - Google Patents
Quantum dot backlight module and liquid crystal indicator Download PDFInfo
- Publication number
- CN106292068A CN106292068A CN201610814957.9A CN201610814957A CN106292068A CN 106292068 A CN106292068 A CN 106292068A CN 201610814957 A CN201610814957 A CN 201610814957A CN 106292068 A CN106292068 A CN 106292068A
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- quantum dot
- layer
- backlight module
- liquid crystal
- dot layer
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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
- G02F1/133602—Direct backlight
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of quantum dot backlight module, including light source, light guide plate, quantum dot layer and the repair layer being positioned at described quantum dot layer surface, affected by water Oxygen permeation for repairing the described quantum dot layer surrounding place of cutting, caused part quantum point failure and the abnormal coloured light that sends；The invention have the benefit that compared to existing quantum dot backlight module, the quantum dot backlight module of the present invention, at the edge of quantum dot layer, repair layer is set, the described quantum dot layer surrounding place of cutting can be repaired because being affected by water Oxygen permeation, the abnormal coloured light causing green quantum point failure and send, so that the edge of quantum dot layer can send pure white coloured light, promote the display quality of liquid crystal panel further.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of quantum dot backlight module and liquid crystal indicator.
Background technology
At present, the color gamut levels of liquid crystal display device is typically about 72%, for improving color gamut levels, quantum dot backlight
Technology is arisen at the historic moment.The color gamut levels of display device can be improved to more than 100% by quantum dot back light source technique.Existing employing
Quantum dot back light source technique, is usually and quantum dot layer dispersion is coated formation quantum dot layer on mylar, thus replace expansion
Dissipate film.
Because quantum dot layer easily lost efficacy in aqueous oxygen containing environment, water proof oxygen barrier layer can be covered up and down, but quantum dot layer limit
Having part water oxygen when edge cuts to penetrate into, owing to green quantum dot is little compared with red quantum point particle diameter, surface can be high, so amount of green color
Son point is more easy to react with water oxygen and lost efficacy, and therefore inefficacy district is mixed in aubergine by the HONGGUANG of blue light with red quantum point, and needs
Seeking light is pure white, thus affects the display quality of liquid crystal panel.
Summary of the invention
The present invention provides a kind of quantum dot backlight module, it is possible to the inefficacy district for quantum dot layer compensates green glow, penetrates with light source
The blue light gone out and the HONGGUANG of quantum dot layer are mixed into the pure white light needed for display, cut place by water oxygen solving quantum dot layer surrounding
Permeation effects and the abnormal coloured light that sends, and then affect the technical problem of liquid crystal panel display quality.
For solving the problems referred to above, the technical scheme that the present invention provides is as follows:
A kind of quantum dot backlight module, including:
Light source；
Light guide plate, the direction needed for its light directing that described light source is penetrated；
Quantum dot layer, it penetrates fluorescence after being excited by the light that described light guide plate reflects；And
Repair layer, being used for repairing the described quantum dot layer surrounding place of cutting is affected by water Oxygen permeation, causes part quantum dot to lose
The abnormal coloured light imitated and send；
Wherein, described repair layer is the shaped as frame coating being formed at described quantum dot layer surface, the four of described shaped as frame coating
Limit correspondence is positioned at the edge of described quantum dot layer.
According to one preferred embodiment of the present invention, described shaped as frame coating is to be printed in the green ink on described quantum dot layer surface
Layer.
According to one preferred embodiment of the present invention, the upper surface of described quantum dot layer is respectively provided with the edge of lower surface
There is described shaped as frame coating.
According to one preferred embodiment of the present invention, described quantum dot layer includes film substrate, green quantum dot and amount of red
Sub-, described green quantum dot is uniformly distributed in described film substrate surface with red quantum point.
According to one preferred embodiment of the present invention, described light source is blue-ray LED, and described light source is to the incident side of described light guide plate
Inject blue ray.
According to the above-mentioned purpose of the present invention, a kind of liquid crystal indicator is proposed, including:
Liquid crystal panel；
Quantum dot backlight module, for providing backlight for described liquid crystal panel；
Described quantum dot backlight module includes:
Light source；
Light guide plate, the direction needed for its light directing that described light source is penetrated；
Quantum dot layer, it penetrates fluorescence after being excited by the light that described light guide plate reflects；And
Repair layer, being used for repairing the described quantum dot layer surrounding place of cutting is affected by water Oxygen permeation, causes part quantum dot to lose
The abnormal coloured light imitated and send；
Wherein, described repair layer is the shaped as frame coating being formed at described quantum dot layer surface, the four of described shaped as frame coating
Limit correspondence is positioned at the edge of described quantum dot layer.
According to one preferred embodiment of the present invention, described shaped as frame coating is to be printed in the green ink on described quantum dot layer surface
Layer.
According to one preferred embodiment of the present invention, the upper surface of described quantum dot layer is respectively provided with the edge of lower surface
There is described shaped as frame coating.
According to one preferred embodiment of the present invention, described quantum dot layer includes film substrate, green quantum dot and amount of red
Sub-, described green quantum dot is uniformly distributed in described film substrate surface with red quantum point.
According to one preferred embodiment of the present invention, described light source is blue-ray LED, and described light source is to the incident side of described light guide plate
Inject blue ray.
The invention have the benefit that compared to existing quantum dot backlight module, the quantum dot backlight module of the present invention,
Repair layer is set at the edge of quantum dot layer, it is possible to repair the described quantum dot layer surrounding place of cutting because being affected by water Oxygen permeation, lead
The abnormal coloured light causing green quantum point failure and send, so that the edge of quantum dot layer can send pure white coloured light, carries further
Rise the display quality of liquid crystal panel.
Accompanying drawing explanation
In order to be illustrated more clearly that embodiment or technical scheme of the prior art, below will be to embodiment or prior art
In description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only some of invention
Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to attached according to these
Figure obtains other accompanying drawing.
Fig. 1 is the structural representation of quantum dot backlight module of the present invention；
Fig. 2 is the quantum dot layer position relationship schematic diagram with repair layer of quantum dot backlight module of the present invention；
Fig. 3 is the light mixing principle schematic diagram of quantum dot backlight module of the present invention.
Detailed description of the invention
The explanation of following embodiment is with reference to additional diagram, the particular implementation implemented in order to illustrate the present invention may be used to
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [front], [afterwards], [left], [right], [interior], [outward], [side]
Deng, it is only the direction with reference to annexed drawings.Therefore, the direction term of use is to illustrate and understand the present invention, and is not used to
Limit the present invention.In the drawings, the unit that structure is similar is to represent in order to identical label.
The present invention is directed to existing quantum dot backlight module, the quantum dot layer surrounding place of cutting, because being affected by water Oxygen permeation, leads
The abnormal coloured light causing green quantum point failure and send, and then affect the technical problem of the display effect of display panels, this
Embodiment can solve the problem that this defect.
As it is shown in figure 1, be the quantum dot backlight module of the present invention, include underframe 101, light source 102, reflector plate 103, lead
Tabula rasa 104 and quantum dot layer 105；Described light source 102 is arranged at described underframe 101 sidepiece, and described reflector plate 103 is arranged at described
Underframe 101 surface, described light guide plate 104 is viscous is located at described reflector plate 103 surface, and described light guide plate 104 has the one of incidence surface
Side is towards described light source 102, and described quantum dot layer 105 is attached at described light guide plate 104 surface；Described underframe 101 sidepiece is arranged
Having center 110, described quantum dot backlight module to be provided above liquid crystal panel, liquid crystal panel is arranged on described center 110, institute
State liquid crystal panel and include tft layer 106, liquid crystal layer 107 and chromatic filter layer 108, described chromatic filter layer 108
In described tft layer 106 top, described liquid crystal layer 107 is arranged at described chromatic filter layer 108 and described film crystal
Between tube layer 106.
Quantum dot (Quantum Dots is called for short QD) is invisible to the naked eye, the most small inorganic nanocrystal, crystal
Diameter, between 2～10 nanometers, is made up of zinc, cadmium, selenium and sulphur atom, and its photoelectric characteristic is unique, after light electricity irritation, and can root
According to the diameter of quantum dot, send the pure monochromatic light of various different colours, it is possible to change the color of light source 102 light, often
When being stimulated by light, quantum dot will send the purest coloured light.
Described light source 102 is blue-ray LED, and described quantum dot layer 105 includes green quantum dot and red quantum point, described
Green quantum dot is uniformly distributed with red quantum point, and described light source 102 injects blue light to the incident side of described light guide plate 104
Line, the blue light of absorption is injected quantum dot layer 105, is excited described green quantum dot to send pure green by described light guide plate 104
Fluorescence, excites described red quantum point to send pure red fluorescence, wherein blue and green light mix with HONGGUANG present pure
White light, and then it is supplied to described liquid crystal panel.
Described quantum dot layer 105 is when producing, and its upper and lower surface is provided with water, oxygen barrier layers, to avoid described quantum
Point quantum dot layer 105 within and water, oxygen generation chemical reaction and affect its characteristic；But, when carrying out backlight module and assembling,
It is monoblock quantum dot layer 105 to cut into some fritters use；Described quantum dot layer 105 after cutting, its sidepiece does not has water, oxygen
The protection on barrier layer, described quantum dot layer 105 can react with water, oxygen and lose efficacy by antermarginal quantum dot, due to described
The particle diameter of green quantum dot is less than the particle diameter of described red quantum point, and the most described green quantum dot is easier to occur anti-with water, oxygen
Answering and lost efficacy, thus be only left described red quantum point at the edge of described quantum dot layer 105, described red quantum point sends
The blue light that HONGGUANG and described light source 102 send presents purplish red coloured light, thus affects described liquid crystal panel peripheral region
Display effect.
Described quantum dot layer 105 arranges repair layer 109, cuts place repairing quantum dot layer 105 surrounding described above
Affected by water Oxygen permeation, caused part quantum point failure and the purplish red coloured light that sends.
As in figure 2 it is shown, the quantum dot backlight module of the present invention, including repair layer 209, described repair layer 209 is for being formed at
The one shaped as frame coating on described quantum dot layer 205 surface, four limit correspondences of described shaped as frame coating are positioned at the four of described quantum dot layer 205
Circumferential edges；Further, described shaped as frame coating is the green oil layer of ink being printed in described quantum dot layer 205 surface, thus blue light with
After green oil layer of ink described in the aubergine light transmission that HONGGUANG is mixed into, filter through described green oil layer of ink and form white light, thus
Solve above-mentioned technical problem.
In order to strengthen repairing effect, can be all provided with the edge of lower surface at the described upper surface of quantum dot layer 205
Put repair layer 209 described in.
As it is shown on figure 3, the quantum dot backlight module of the present invention, include underframe 301, light source 302, reflector plate 303, leaded light
Plate 304 and quantum dot layer 305；Described light source 302 is arranged at described underframe 301 sidepiece, and described reflector plate 303 is arranged at the described end
Frame 301 surface, described light guide plate 304 is viscous is located at described reflector plate 303 surface, and described light guide plate 304 has the side of incidence surface
Towards described light source 302, described quantum dot layer 305 is attached at described light guide plate 304 surface；Described underframe 301 sidepiece is provided with
Center 310, described quantum dot backlight module is provided above liquid crystal panel, and liquid crystal panel is arranged on described center 310, described
Liquid crystal panel includes tft layer 306, liquid crystal layer 307 and chromatic filter layer 308, and described chromatic filter layer 308 is positioned at
Described tft layer 306 top, described liquid crystal layer 307 is arranged at described chromatic filter layer 308 and described thin film transistor (TFT)
Between layer 306.
Described quantum dot layer 305 is provided with described repair layer 309；The Principles of described repair layer 309 is: described
Light source 302 is injected blue light a, blue light a to described light guide plate 304 and is entered described quantum dot layer 305 through light guide plate 304, due to described
Red quantum point is only deposited on the border of quantum dot layer 305, and described blue light a excites described red quantum point to send purplish red coloured light b, described
Purplish red coloured light b is mixed with red light by blue light a and draws, blue light a is mixed into bottle green through the green ink of described repair layer 309
Light c, finally, described dark green coloured light c and purplish red coloured light b is mixed into white light d.
According to the above-mentioned purpose of the present invention, a kind of liquid crystal indicator is proposed, including:
Liquid crystal panel；
Quantum dot backlight module, for providing backlight for described liquid crystal panel；
Described quantum dot backlight module includes:
Light source；
Light guide plate, the direction needed for its light directing that described light source is penetrated；
Quantum dot layer, it penetrates fluorescence after being excited by the light that described light guide plate reflects；And
Repair layer, being used for repairing the described quantum dot layer surrounding place of cutting is affected by water Oxygen permeation, causes part quantum dot to lose
The abnormal coloured light imitated and send；
Wherein, described repair layer is the shaped as frame coating being formed at described quantum dot layer surface, the four of described shaped as frame coating
Limit correspondence is positioned at the edge of described quantum dot layer.
Preferably, described shaped as frame coating is the green oil layer of ink being printed in described quantum dot layer surface.
Preferably, the upper surface of described quantum dot layer and the edge of lower surface are provided with described shaped as frame coating.
Preferably, described quantum dot layer includes film substrate, green quantum dot and red quantum point, described green quantum
Point and red quantum point are uniformly distributed in described film substrate surface.
Preferably, described light source is blue-ray LED, and described light source injects blue ray to the incident side of described light guide plate.
The concrete structure of liquid crystal indicator provided by the present invention and the preferred embodiment of above-mentioned quantum dot backlight module
Same or similar, specifically refer to the associated description in the preferred embodiment of above-mentioned quantum dot backlight module.
The invention have the benefit that compared to existing quantum dot backlight module, the quantum dot backlight module of the present invention,
Repair layer is set at the edge of quantum dot layer, it is possible to repair the described quantum dot layer surrounding place of cutting because being affected by water Oxygen permeation, lead
The abnormal coloured light causing green quantum point failure and send, so that the edge of quantum dot layer can send pure white coloured light, carries further
Rise the display quality of liquid crystal panel.
In sum, although the present invention is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The present invention processed, those of ordinary skill in the art, without departing from the spirit and scope of the present invention, all can make various change and profit
Decorations, therefore protection scope of the present invention defines in the range of standard with claim.
Claims (10)
1. a quantum dot backlight module, it is characterised in that including:
Light source；
Light guide plate, the direction needed for its light directing that described light source is penetrated；
Quantum dot layer, it penetrates fluorescence after being excited by the light that described light guide plate reflects；And
Repair layer, being used for repairing the described quantum dot layer surrounding place of cutting is affected by water Oxygen permeation, cause part quantum point failure and
The abnormal coloured light sent；
Wherein, described repair layer is the shaped as frame coating being formed at described quantum dot layer surface, four limits pair of described shaped as frame coating
The edge of described quantum dot layer should be positioned at.
Quantum dot backlight module the most according to claim 1, it is characterised in that described shaped as frame coating is for being printed in described amount
The green oil layer of ink on son point layer surface.
Quantum dot backlight module the most according to claim 2, it is characterised in that the upper surface of described quantum dot layer and following table
The edge in face is provided with described shaped as frame coating.
Quantum dot backlight module the most according to claim 1, it is characterised in that described quantum dot layer includes thin film base
Plate, green quantum dot and red quantum point, described green quantum dot is uniformly distributed in described film substrate table with red quantum point
Face.
Quantum dot backlight module the most according to claim 1, it is characterised in that described light source is blue-ray LED, described light source
Incident side to described light guide plate injects blue ray.
6. a liquid crystal indicator, it is characterised in that including:
Liquid crystal panel；
Quantum dot backlight module, for providing backlight for described liquid crystal panel；
Described quantum dot backlight module includes:
Light source；
Light guide plate, the direction needed for its light directing that described light source is penetrated；
Quantum dot layer, it penetrates fluorescence after being excited by the light that described light guide plate reflects；And
Repair layer, being used for repairing the described quantum dot layer surrounding place of cutting is affected by water Oxygen permeation, cause part quantum point failure and
The abnormal coloured light sent；
Wherein, described repair layer is the shaped as frame coating being formed at described quantum dot layer surface, four limits pair of described shaped as frame coating
The edge of described quantum dot layer should be positioned at.
Liquid crystal indicator the most according to claim 6, it is characterised in that described shaped as frame coating is for being printed in described quantum
The green oil layer of ink on some layer surface.
Liquid crystal indicator the most according to claim 7, it is characterised in that the upper surface of described quantum dot layer and lower surface
Edge be provided with described shaped as frame coating.
Liquid crystal indicator the most according to claim 6, it is characterised in that described quantum dot layer include film substrate,
Green quantum dot and red quantum point, described green quantum dot is uniformly distributed in described film substrate surface with red quantum point.
Liquid crystal indicator the most according to claim 6, it is characterised in that described light source is blue-ray LED, described light source
Incident side to described light guide plate injects blue ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814957.9A CN106292068A (en) | 2016-09-12 | 2016-09-12 | Quantum dot backlight module and liquid crystal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814957.9A CN106292068A (en) | 2016-09-12 | 2016-09-12 | Quantum dot backlight module and liquid crystal indicator |
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| CN106292068A true CN106292068A (en) | 2017-01-04 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610814957.9A Pending CN106292068A (en) | 2016-09-12 | 2016-09-12 | Quantum dot backlight module and liquid crystal indicator |
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| CN106842702A (en) * | 2017-01-23 | 2017-06-13 | 厦门天马微电子有限公司 | Quantum dot diaphragm, its preparation method and its backlight module and liquid crystal display |
| CN107420804A (en) * | 2017-09-07 | 2017-12-01 | 合肥惠科金扬科技有限公司 | Quantum dot backlight module and display device |
| WO2023245745A1 (en) * | 2022-06-24 | 2023-12-28 | 苏州华星光电技术有限公司 | Display panel and manufacturing method for same, and mobile terminal |
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Application publication date: 20170104 |