CN208351206U - A kind of quantum dot pixel luminescence generated by light liquid crystal display die set - Google Patents
A kind of quantum dot pixel luminescence generated by light liquid crystal display die set Download PDFInfo
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- CN208351206U CN208351206U CN201820865361.6U CN201820865361U CN208351206U CN 208351206 U CN208351206 U CN 208351206U CN 201820865361 U CN201820865361 U CN 201820865361U CN 208351206 U CN208351206 U CN 208351206U
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Abstract
The utility model discloses a kind of quantum dot pixel luminescence generated by light liquid crystal display die sets, including removing the liquid crystal display of chromatic filter layer, the glass substrate and backlight module of the quanta point material that is printed on one side；The liquid crystal display of the removal chromatic filter layer includes top glass substrate and lower glass substrate, and the one of the glass substrate printing quanta point material of the quanta point material that is printed on one side is bonded facing towards the top glass substrate and by sealing frame with top glass substrate；Backlight module is placed in the lower glass substrate side of the liquid crystal display of the removal chromatic filter layer, for providing light source, after liquid crystal molecule control in liquid crystal display of the light source through removing chromatic filter layer issues, the quanta point material of the glass baseplate surface for the quanta point material that is printed on one side is excited, realizes quantum dot pixel luminescence generated by light.The utility model is compared with prior art liquid crystal display die set, and structure and production technology, the colour gamut for simplifying liquid crystal display are wide, color is purer, contrast is high, long service life.
Description
Technical field
The utility model relates to a kind of LCD technology more particularly to a kind of quantum dot pixel luminescence generated by light liquid crystal displays
Mould group.
Background technique
Traditional LCD (Liquid Crystal Display, i.e. liquid crystal display) includes one group of backlight
(Backlight Unit) and liquid crystal display panel (Liquid-Crystal Module).Liquid crystal display panel is made of many pixels,
Construction is to place liquid crystal cell in the parallel glass substrate of two panels, thin film transistor (TFT) (TFT) is arranged on lower baseplate glass, i.e.,
Colored filter is arranged on upper substrate glass in liquid crystal pixel electrodes layer.Such as the common liquid crystals screen structure chart institute of Fig. 6 prior art
Show, the basic structure of common liquid crystals screen includes the parallel top glass substrate 101a of two panels and lower glass substrate 101b, upper glass base
It is bonded together between plate 101a and lower glass substrate 101b by sealing glue frame 102, the opposing surface point of upper and lower glass substrate
She Zhi chromatic filter layer 106 and liquid crystal pixel electrodes layer 103, wherein chromatic filter layer 106 by red, green, blue (107a,
107b, 107c) three kinds of color alignment compositions, it is used for display color, the signal and voltage on liquid crystal pixel electrodes layer 103 to be changeable
For controlling the rotation direction of liquid crystal molecule, so that backlight module 110 is penetrated whether reaching control each pixel polarised light outgoing
Polarised light out is emitted via chromatic filter layer 106 again and reaches display purpose.
Backlight is usually to use white light LEDs (WLED) at present, and backlight " illuminates " pixel, and liquid crystal is just as curtain one
Sample, controls the degree of pixel light transmission, and white light is filtered out one of RGB color by last colored filter.Pass through control
These a series of pixels, can blend various colors.Therefore, liquid crystal display panel color representation mainly and two because
It is plain related: one be colored filter optical filtering validity, the other is the degree of purity of backlight white.In terms of optical filter,
It is required that precisely obtaining the color of color filtering it is blue (B) to filter out red (R) green (G).For example Red lightscreening plate will not only filter
Fall the green and blue inside white light, and only the red of specific wavelength is allowed to pass through, obtains pure red.It is advanced at present
Optical filter can accurately filter out color very much, but requirement on machining accuracy is high, and complex process is very expensive, since colour is filtered
Mating plate is to generate pure color using the filtering of color photoresist, thus also result in the loss (color of light of apparent decaying and brightness
Resistance transmitance only has 1/3 or so).In terms of backlight, then require to provide the light source of very " white ".It is understood that white light is practical
On be with red, blue, green three color contaminations altogether, but the WLED(white light LEDs used now) light source can not provide it is very pure
White light source, show that the proportion of RGB is unequal.The defect of white light LEDs (WLED) is exactly blue in simple terms at present
It is more, and additional yellow is produced, therefore, finally also limit the color performance of liquid crystal display.In order to overcome white light
The shortcomings that LED (WLED), now with the panel for directly using red, green and blue LED (RGBLED) backlight drive, but price is very high
It is expensive, and be difficult to fill in small-sized mobile device.
Therefore, the existing technology needs to be improved and developed.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the utility model are the liquid for solving the prior art and using colored filter
The defects of crystalline substance screen processing technology is complicated, colour gamut is not wide enough, color representation power is limited, color is not pure enough, and contrast is not high enough and not
Foot, proposes a kind of quantum dot pixel luminescence generated by light liquid crystal display, can be realized the structure and production for greatly simplifying liquid crystal display
Technique, and the liquid crystal display of colored filter is used compared with prior art, with colour gamut is wide, color representation power is good, color is purer, right
The advantages of than Du Gao and long service life.
The utility model technical scheme applied to solve the technical problem is as follows:
A kind of quantum dot pixel luminescence generated by light liquid crystal display die set, liquid crystal display, one side print including removing chromatic filter layer
The glass substrate and backlight module of brush quanta point material；The liquid crystal display of the removal chromatic filter layer includes top glass substrate under
Glass substrate；The glass substrate of the quanta point material that is printed on one side includes glass substrate and setting in the glass substrate one side
Several pixel slots, several pixel slots by photoresist be coated on the glass substrate wherein one side formed, wherein several
Be spaced apart quanta point material and diffusion particle in pixel slot in each groove body, the cross section of several pixel slots be it is trapezoidal, it is described
The glass substrate printing quanta point material of quanta point material of being printed on one side one facing towards the top glass substrate and passes through sealing
Frame is bonded with top glass substrate；Backlight module is placed in the lower glass substrate side of the liquid crystal display of the removal chromatic filter layer, uses
In providing light source, after the liquid crystal molecule control in liquid crystal display of the light source through removing chromatic filter layer issues, the amount of being printed on one side is excited
The quanta point material of the glass baseplate surface of son point material, realizes quantum dot pixel luminescence generated by light.
Technical solution as a further improvement, each groove body is spaced apart in several pixel slots quanta point material and
Diffusion particle is respectively separated placement green quanta point material, red quantum dot material, diffusion particle.
Technical solution as a further improvement, each groove body is spaced apart in several pixel slots quanta point material and
Diffusion particle, which is respectively separated, places red quantum dot material, green quanta point material, diffusion particle.
Technical solution as a further improvement, the width of each groove body is than red quantum dot material in several pixel slots
Material: green quanta point material: diffusion particle 2.92:2.74:0.7.
Technical solution as a further improvement, the quantum dot of the glass baseplate surface of the quanta point material that is printed on one side
Material is CdSe quantum dots material or perovskite quanta point material.
Technical solution as a further improvement, the backlight module use blue-ray LED, and blue-ray LED passes through liquid crystal molecule
Control issue after, excitation be printed on one side quanta point material glass baseplate surface quanta point material, realize quantum dot pixel
Luminescence generated by light.
Based on above content, due to the utility model quantum dot pixel luminescence generated by light liquid crystal display, by using quantum
Point material and diffusion particle replace the colored filter in prior art liquid crystal display, are replaced using blue light LED light source existing
White light LEDs (WLED) white light source in technology liquid crystal display.Since quantum dot possesses 90% or so light conversion efficiency, swash
The light of hair possesses very narrow spectrum, color very " accurate ", and blue-ray LED spectrum is pure, therefore has well solved original technology
The problem that backlight is not pure, optical filter color filtering is not accurate and luminance loss is big.Compared with the prior art, the utility model makes
Processing technology is simplified, liquid crystal display colour gamut is wide, color representation power is good, and color is purer, and contrast is high, long service life.
Detailed description of the invention
Specific embodiment of the present utility model is further described with reference to the accompanying drawing, in which:
Fig. 1 is a kind of quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment structure chart of the utility model.
Fig. 2 is that colour is removed in a kind of quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment of the utility model
The LCD LCD structure figure of filter layer.
Fig. 3 is a kind of being printed on one side for quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment of the utility model
The glass substrate longitudinal direction sectional structure chart of quanta point material.
Fig. 4 is a kind of being printed on one side for quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment of the utility model
The perspective view pixel slot structure of quanta point material (display be printed on one side) of the glass substrate of quanta point material.
Fig. 5 is a kind of being printed on one side for quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment of the utility model
The glass substrate pixel slot part section structure chart of quanta point material.
Fig. 6 is prior art common liquid crystals display screen structure figure.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, clear, develop simultaneously implementation referring to the drawings
The utility model is further described in example.It should be appreciated that specific embodiment described herein is only used to explain this reality
With novel, it is not used to limit the utility model.
Liquid crystal display, referred to as LCD (Liquid Crystal Display), are the one kind for belonging to flat-panel screens.
Liquid crystal is a kind of particular matter between a solid and a liquid, is that a kind of organic compound shows under normal temperature conditions
The mobility of existing liquid, and have the optical anisotropy of crystal.Another special nature of liquid crystal is, if applied to liquid crystal
Add an electric field, molecule is easy to happen rearrangement, so that the various optical properties of liquid crystal is changed therewith, i.e., when logical to liquid crystal
When electric, liquid crystal arrangement becomes orderly, and light is made to be easy to pass through, and liquid crystal arrangement is chaotic when no power, and light is prevented to pass through.Exactly
Using the physical basis of this liquid crystal, i.e. " electro-optic effect " of liquid crystal, realize that light is modulated by electric signal, so that liquid crystal be made
Show device.Under the effect of different current electric fields, liquid crystal molecule can do 90 degree of rules rotating arrangements, generate the difference of light transmittance, such as
This generates the difference of light and shade under electric power on/off, controls each pixel according to principle according to this, image needed for just constituting.
Because of the difference using liquid crystal molecule torsion principle, liquid crystal display is mainly divided into twisted nematic TN again
(Twisted Nematic belongs to passive-matrix type technology), super twisted formula nematic STN(Super Twisted Nematic, belong to
Passive-matrix type technology) and thin-film transistors type TFT(Thin Film Transistor, owner's dynamic formula matrix driving skill
Art), they in visual angle, colour, to also thering is height journey to take second place difference because its work is original different on when animation display quality.
It is used as display and TV set panel currently on the market, all with thin-film transistors type (TFT) for mainstream.
Currently, that the liquid crystal display of mainstream uses is all thin-film transistors type (TFT), TFT LCD technology can be shown
Show the image for being more clear, becoming clear.Its structure is as shown in Fig. 6 prior art common liquid crystals display screen structure figure comprising: upper glass
Glass substrate 101a, lower glass substrate 101b, liquid crystal pixel electrodes layer 103, sealing glue frame 102, by red filter unit 107a, green
The chromatic filter layer 106 and backlight module 110 of color filter unit 107b, blue filter unit 107c composition are constituted.Wherein backlight
Backlight used by mould group 110 is usually white light LEDs (WLED).Groundwork process are as follows: the backlight of backlight module 110
" illuminating " pixel, the degree of thin-film transistors (TFT) the control pixel light transmission on liquid crystal pixel electrodes layer 103 are colored
The white light that pixel comes thoroughly is filtered out the one such color of RGB by optical filter (i.e. chromatic filter layer 106).Pass through control
These a series of pixels, blend various colors.It can be seen that liquid crystal display color representation mainly and
Two factor correlations: one be optical filter optical filtering validity, the other is the degree of purity of backlight white.
In terms of optical filter, it is desirable that precisely obtain filtered color: red, green or blue.Optical filter advanced at present
Color can accurately be filtered out very much, but particularly expensive, and due to simultaneously light transmittance can be made to decline, cause significantly decay and it is bright
The loss of degree reduces the efficiency index of LCD.
In terms of backlight, it is desirable that very pure white light source is provided.But white light LEDs (WLED) light source used now is red
Turquoise proportion is unequal, be exactly in simple terms it is blue mostly and produce additional yellow, limit liquid crystal display panel color
Performance.
Based on above-described common liquid crystals display screen there are the shortcomings that, the utility model using quanta point material by light
It can be possessed very according to the monochromatic light of different sizes and inspiring different colours of crystal grain diameter, the monochromatic light excited when electro photoluminescence
Narrow spectrum (i.e. degree of purity is very high) and the characteristics of possess 90% or so light conversion efficiency, illustrates a kind of quantum dot pixel
Photo-luminescence liquid crystal display screen, a kind of quantum dot pixel luminescence generated by light liquid crystal display of structure such as Fig. 1 the utility model are preferred
Shown in example structure figure, including removing the liquid crystal display 200 of chromatic filter layer, the glass substrate for the quanta point material that is printed on one side
210 and backlight module 220；The liquid crystal display 200 of the removal chromatic filter layer includes top glass substrate 201a and lower glass substrate
201b, top glass substrate 201a and lower glass substrate 201b pass through sealing glue frame 204a between the two and bond, the amount of being printed on one side
The glass substrate 211 of the glass substrate 210 of son point material prints the one side 212 of quanta point material towards the top glass substrate
201a is simultaneously bonded by sealing glue frame 204b with top glass substrate 201a；The glass substrate of the quanta point material that is printed on one side
210 include glass substrate 211 and several pixel slots that the glass substrate one side 212 is arranged in, and several pixel slots are by light
The wherein one side that photoresist is coated on the glass substrate is formed, wherein being spaced apart quantum dot in each groove body in several pixel slots
Material 213 and diffusion particle 214, the cross section of several pixel slots are trapezoidal.Backlight module 220 is placed in the colored filter of the removal
The side lower glass substrate 201b of the liquid crystal display 200 of photosphere, for providing light source, light source is through removing the liquid crystal display of chromatic filter layer
After the control of layer of liquid crystal molecule 202 in 200 issues, the glass substrate of the glass substrate 210 for the quanta point material that is printed on one side is excited
The quanta point material 213 and diffusion particle 214 on 211 surfaces realize quantum dot pixel luminescence generated by light.
Wherein, the structure of the LCD liquid crystal display 200 of chromatic filter layer is removed as shown in Fig. 2, being the utility model shown in Fig. 2
A kind of LCD LCD structure of the removal chromatic filter layer of quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment
Figure is 200 part of LCD liquid crystal display of the removal chromatic filter layer in Fig. 1, comprising: top glass substrate 201a, lower glass substrate
201b, liquid crystal pixel electrodes layer 202 do not indicate in upper polaroid 203a(Fig. 1), do not indicate in down polaroid 203b(Fig. 1), it is close
Sealant 204a and liquid crystal molecule 205.Top glass substrate 201a bonds to form hollow structure by sealing glue frame 204a, hollow knot
Fig. 6 prior art common liquid crystals screen structure, top glass substrate 201a court in the utility model are compared in liquid crystal molecule 205 built in structure
Chromatic filter layer is eliminated on one side to hollow structure, and one side is set respectively outwardly by top glass substrate 201a and lower glass substrate 201b
It is equipped with upper polaroid 203a and down polaroid 203b, lower glass substrate 201b is provided with liquid crystal pixel towards hollow structure on one side
Electrode layer 202 forms a kind of removal chromatic filter layer of quantum dot pixel luminescence generated by light liquid crystal display die set of the utility model
LCD liquid crystal display, working principle has only been the absence of colored filter colour filter function compared with common liquid crystals display screen, other
Part is just the same.
Be printed on one side quanta point material glass substrate 210 structure as shown in Fig. 3, Fig. 4 and Fig. 5, Fig. 3 show this reality
With a kind of novel glass base for being printed with quanta point material of quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment
Plate longitudinal direction sectional structure chart, it is preferably real that Fig. 4 show a kind of quantum dot pixel luminescence generated by light liquid crystal display die set of the utility model
The perspective view pixel slot structure of quanta point material (display be printed on one side) of the glass substrate for being printed with quanta point material of example is applied,
What Fig. 5 showed a kind of quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment of the utility model is printed with quantum dot
The broken section structure chart of the glass substrate of material.The glass substrate 210 of the quanta point material that is printed on one side is by glass substrate
211 and several pixel slots 212 constitute, wherein several pixel slots 212 are coated on glass using photoresist (generally black resin)
The one side of substrate 211 completes through the step of overbaking, exposure, development, baking.As shown in Figure 3 and Figure 5, several pixel slots
Quanta point material 213a, 213b and diffusion particle 214 are placed in 212；Quanta point material is a kind of very small semiconductor
Nanocrystal is the particle of 2 ~ 10nm of particle diameter, when the stimulation by light or electricity, can issue coloured light, the color of light
It is determined by the composition material and size shape of quantum dot, what the utility model was chosen is the amount that can inspire red light and green light
Son point material, diffusion particle 214 are then used for the diffusion of light.Quanta point material 213a, 213b for being placed in pixel slot 212 and expansion
The placement order of shot 214 are as follows: inspire red quanta point material 213a, the quanta point material 213b for inspiring green,
Diffusion particle 214, either: inspiring the quanta point material 213b of green, inspire red quanta point material 213a, diffusion
Particle 214.For it is preferred that, the quanta point material of the glass baseplate surface for the quanta point material that is printed on one side is CdSe quantum dots material
Material or perovskite quanta point material.Quanta point material 213a, 213b and diffusion particle 214 in pixel slot 212 are beaten by ink-jet
India side formula prints to formation QD quantum dot pixel layer in pixel slot.As shown in figure 5, each groove body in several pixel slots 212
Cross section is trapezoidal, the width ratio of groove body, i.e. placement red quantum dot material 213a, green quanta point material 213b and diffusion grain
The ratio between width between the groove body of son 214 is red quantum dot material: green quanta point material: diffusion particle 2.92:2.74:
0.7, or place between green quanta point material 213a, red quantum dot material 213b and the groove body of diffusion particle 214
The ratio between width is green quanta point material: red quantum dot material: diffusion particle 2.92:2.74:0.7.
Such as a kind of quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment structure chart institute of Fig. 1 the utility model
Show, the glass substrate 210 for the quanta point material that is printed on one side, be placed with the one of quanta point material 213 and diffusion particle 214 facing towards
Top glass substrate 201a passes through sealant between the glass substrate 210 and top glass substrate 201a of the quanta point material that is printed on one side
Frame 204b bonding, so that the pixel slot 212 for being placed with quanta point material and diffusion particle is sealed in confined space, it is such
Structure is conducive to protect quanta point material.
In the utility model quantum dot pixel luminescence generated by light liquid crystal display die set preferred embodiment, backlight module 220 makes
Backlight uses blue light LED light source.Blue light LED light source, purity is high, blue light LED light source are divided after issuing blue light by liquid crystal
Son control excites red and green light quanta point material to realize colored display after issuing, diffusion particle is then used for the diffusion of light,
Save the cost.
It should be understood that the above is only the preferred embodiment of the utility model only, it is not sufficient to limit this reality
With novel technical solution, for those of ordinary skills, within the spirit and principles of the present invention, Ke Yigen
Increased and decreased according to above description, replaced, converted or is improved, and all these increases and decreases, replacement, transformation or improved technical side
Case all should belong to the protection scope of the appended claims for the utility model.
Claims (6)
1. a kind of quantum dot pixel luminescence generated by light liquid crystal display die set, which is characterized in that the liquid crystal including removing chromatic filter layer
Shield, the glass substrate and backlight module of the quanta point material that is printed on one side；The liquid crystal display of the removal chromatic filter layer includes upper glass
Glass substrate and lower glass substrate；The glass substrate of the quanta point material that is printed on one side includes glass substrate and is arranged in the glass
Several pixel slots of glass substrate side, several pixel slots are coated on the wherein one side shape of the glass substrate by photoresist
At, wherein quanta point material and diffusion particle have been spaced apart in several pixel slots in each groove body, the cross section of several pixel slots
To be trapezoidal, the one of the glass substrate of the quanta point material that is printed on one side printing quanta point material is facing towards the top glass substrate
And it is bonded by sealing frame with top glass substrate；Backlight module is placed in the lower glass of the liquid crystal display of the removal chromatic filter layer
Substrate side, for providing light source, after the liquid crystal molecule control in liquid crystal display of the light source through removing chromatic filter layer issues, excitation
Be printed on one side quanta point material glass baseplate surface quanta point material, realize quantum dot pixel luminescence generated by light.
2. a kind of quantum dot pixel luminescence generated by light liquid crystal display die set according to claim 1, which is characterized in that if described
The quanta point material and diffusion particle that each groove body is spaced apart in dry pixel slot are respectively separated placement green quanta point material, red
Quanta point material, diffusion particle.
3. a kind of quantum dot pixel luminescence generated by light liquid crystal display die set according to claim 1, which is characterized in that if described
The quanta point material and diffusion particle that each groove body is spaced apart in dry pixel slot, which are respectively separated, places red quantum dot material, green
Quanta point material, diffusion particle.
4. a kind of quantum dot pixel luminescence generated by light liquid crystal display die set according to claim 2 or 3, which is characterized in that institute
The width of each groove body in several pixel slots is stated than red quantum dot material: green quanta point material: diffusion particle 2.92:
2.74:0.7.
5. a kind of quantum dot pixel luminescence generated by light liquid crystal display die set according to claim 4, which is characterized in that the list
The quanta point material that the glass baseplate surface of quanta point material is printed in face is CdSe quantum dots material or perovskite quantum dot material
Material.
6. quantum dot pixel luminescence generated by light liquid crystal display die set according to claim 5, which is characterized in that the backlight mould
Group uses blue-ray LED, and blue-ray LED excites the glass base for the quanta point material that is printed on one side after the control of liquid crystal molecule issues
The quanta point material of plate surface realizes quantum dot pixel luminescence generated by light.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110335543A (en) * | 2019-04-30 | 2019-10-15 | 上海天马微电子有限公司 | Flexible display panels and its manufacturing method, flexible display apparatus |
| WO2019233238A1 (en) * | 2018-06-06 | 2019-12-12 | 深圳Tcl新技术有限公司 | Quantum-dot pixel photoluminescent liquid crystal display module and manufacturing method therefor |
| WO2019233239A1 (en) * | 2018-06-06 | 2019-12-12 | 深圳Tcl新技术有限公司 | Quantum-dot pixel photoluminescent liquid crystal display module and manufacturing method therefor |
| CN113296310A (en) * | 2020-02-24 | 2021-08-24 | 广东普加福光电科技有限公司 | Quantum dot light conversion layer and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019233238A1 (en) * | 2018-06-06 | 2019-12-12 | 深圳Tcl新技术有限公司 | Quantum-dot pixel photoluminescent liquid crystal display module and manufacturing method therefor |
| WO2019233239A1 (en) * | 2018-06-06 | 2019-12-12 | 深圳Tcl新技术有限公司 | Quantum-dot pixel photoluminescent liquid crystal display module and manufacturing method therefor |
| CN110568659A (en) * | 2018-06-06 | 2019-12-13 | 深圳Tcl新技术有限公司 | Quantum dot pixel photoluminescence liquid crystal display module and manufacturing method thereof |
| CN110335543A (en) * | 2019-04-30 | 2019-10-15 | 上海天马微电子有限公司 | Flexible display panels and its manufacturing method, flexible display apparatus |
| CN110335543B (en) * | 2019-04-30 | 2022-01-14 | 上海天马微电子有限公司 | Flexible display panel, manufacturing method thereof and flexible display device |
| CN113296310A (en) * | 2020-02-24 | 2021-08-24 | 广东普加福光电科技有限公司 | Quantum dot light conversion layer and preparation method thereof |
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