CN203241664U - Liquid crystal display screen and display device - Google Patents
Liquid crystal display screen and display device Download PDFInfo
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- CN203241664U CN203241664U CN 201320174822 CN201320174822U CN203241664U CN 203241664 U CN203241664 U CN 203241664U CN 201320174822 CN201320174822 CN 201320174822 CN 201320174822 U CN201320174822 U CN 201320174822U CN 203241664 U CN203241664 U CN 203241664U
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Abstract
The utility model discloses a liquid crystal display screen and a liquid crystal display device; multiple pixel units are arranged in a liquid crystal panel; each pixel unit is provided with multiple sub pixel units for displaying different colors; and a monochrome quantum dot layer is arranged at the corresponding position of the sub pixel unit with at least one color of each pixel unit. According to the embodiment provided by the utility model, the quantum dot layers are adopted to replace the existing color resin to be used as a color filter, so background light is converted into monochromatic light; and the quantum dots are narrow in emission spectrum and high in light emission efficiency, thus efficiently converting the background light into monochromatic light, improving the color gamut of the liquid crystal display screen, enhancing the color saturation and improving the displaying quality of the display screen. In addition, high-molecular polymer network dispersion monochrome quantum dots are adopted, the accumulation of quantum dots is prevented, the quantum yield is improved, the quantum excitation lighting effect is improved, the monochrome quantum dots and oxygen are prevented from contacting, and the service life of the monochrome quantum dots is prolonged.
Description
Technical field
The utility model relates to technical field of liquid crystal display, relates in particular to a kind of LCDs and display device.
Background technology
Quantum dot (Quantum Dots, QDs) can claim again nanocrystallinely, is a kind of nano particle that is comprised of II-VI family or III-V family element.The particle diameter of quantum dot is generally between 1～20nm, because electronics and hole be by quantum confinement, continuous band structure becomes the discrete energy levels structure with molecular characterization, can emitting fluorescence after being excited.
The emission spectrum of quantum dot can be controlled by the size that changes quantum dot.Can make its emission spectrum cover whole visible region by the size of change quantum dot and its chemical composition.Take the CdTe quantum dot as example, when its particle diameter grew into 4.0nm from 2.5nm, their emission wavelength can be from the 510nm red shift to 660nm.
At present, utilize the characteristics of luminescence of quantum dot, quantum dot can be applied to fluorescence labeling as molecular probe, also can be applied in the display device, with the light emitting source of monochromatic quantum dot as the backlight module of LCDs, monochromatic quantum dot has larger colour gamut being subject to sending monochromatic light and blue light formation white background light after blue-ray LED excites, and can improve picture quality.And also quantum dot is not applied to the design of LCDs inside in the prior art.
The utility model content
The utility model embodiment provides a kind of LCDs and display device, in order to improving the colour gamut of display screen, and then improves picture quality.
The utility model embodiment provides a kind of LCDs, comprise: the subtend substrate, array base palte, and the liquid crystal layer between described subtend substrate and described array base palte, be provided with a plurality of pixel cells on the described array base palte, each described pixel cell has the sub-pix unit of a plurality of demonstration different colours
Corresponding subtend substrate or array base palte position, sub-pix unit at least one color of each pixel cell is provided with monochromatic quantum dot layer, and described monochromatic quantum dot layer sends the monochromatic light of corresponding described sub-pix cell colors after excited by bias light.
Concrete, described monochromatic quantum dot layer is for being comprised of high molecular polymer network and the monochromatic quantum dot that is dispersed in the described high molecular polymer network; Described high molecular polymer network be potpourri by formaldehyde-phenol resin derivative and diazonium naphthol derivative under the effect of light trigger, generate by the UV-irradiation polymerization.
A kind of display device that the utility model embodiment provides comprises the LCDs that the utility model embodiment provides.
The beneficial effect of the utility model embodiment comprises:
A kind of LCDs and display device that the utility model embodiment provides, in liquid crystal panel, be provided with a plurality of pixel cells, each pixel cell all has the sub-pix unit of a plurality of demonstration different colours, position corresponding to sub-pix unit at least one color of each pixel cell is provided with monochromatic quantum dot layer, and this monochrome quantum dot layer sends after excited by bias light monochromatic light that should the sub-pix cell colors.The utility model embodiment adopts quantum dot layer to replace existing color resin as colored filter bias light to be changed into monochromatic light, because quantum dot emission spectrum is narrow and luminescence efficiency is high, bias light can be converted into monochromatic light efficiently, can improve the colour gamut of LCDs, strengthen color saturation, improved the display quality of display screen.And, adopt the mode of UV-irradiation formaldehyde-phenol resin derivative and diazonium naphthol derivative potpourri to generate the high molecular polymer network, monochromatic quantum dot is dispersed in the high molecular polymer network, graphical quantum dot layer, prevent the accumulation of quantum dot, increase the quantum yield of quantum dot, excite light efficiency to improve quantum.In addition, the high molecular polymer network can secluding air and monochromatic quantum dot, avoids monochromatic quantum dot to contact with oxygen, has increased the serviceable life of quantum dot.
Description of drawings
Fig. 1 a and Fig. 1 b are respectively the structural representation of the LCDs that the utility model embodiment provides;
The LCDs that Fig. 2 provides for the utility model embodiment and the colour gamut simulation drawing of existing LCDs;
The arrangement synoptic diagram of each sub-pix unit in the pixel cell that Fig. 3 a-Fig. 3 d provides for the utility model embodiment;
The synoptic diagram of each step of the preparation array base palte that Fig. 4 a-Fig. 4 k provides for the utility model embodiment;
The synoptic diagram of each step of preparation subtend substrate that Fig. 5 a-Fig. 5 e provides for the utility model embodiment;
The schematic flow sheet of the patterned method of monochromatic quantum dot layer that Fig. 6 provides for the utility model embodiment;
The quantum dot that Fig. 7 provides for the utility model embodiment is scattered in the synoptic diagram of high molecular polymer network;
The synoptic diagram of each step of the patterned method of quantum dot layer that Fig. 8 a-Fig. 8 f provides for the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the LCDs that the utility model embodiment is provided and the embodiment of display device are described in detail.
Wherein, each layer film thickness and region shape do not reflect the true ratio of array base palte or subtend substrate in the accompanying drawing, and purpose is signal explanation the utility model content just.
A kind of LCDs that the utility model embodiment provides, shown in Fig. 1 a and Fig. 1 b, comprise: subtend substrate 1, array base palte 2, and the liquid crystal layer 3 between subtend substrate 1 and array base palte 2, be provided with a plurality of pixel cells on the array base palte, each pixel cell has the sub-pix unit (among the figure shown in the dotted line frame) of a plurality of demonstration different colours;
Corresponding subtend substrate or the position of array base palte in the sub-pix unit of at least one color of each pixel cell, be respectively arranged with monochromatic quantum dot layer 01, this monochrome quantum dot layer 01 sends after excited by bias light monochromatic light that should the sub-pix cell colors.
Concrete, described monochromatic quantum dot layer is for being comprised of high molecular polymer network and the monochromatic quantum dot that is dispersed in the described high molecular polymer network; Described high molecular polymer network be potpourri by formaldehyde-phenol resin derivative and diazonium naphthol derivative under the effect of light trigger, generate by the UV-irradiation polymerization.
In the LCDs that the utility model embodiment provides, adopt monochromatic quantum dot layer to replace existing color resin as colored filter bias light to be changed into monochromatic light; Liquid crystal deflecting element in the electric field controls liquid crystal layer that produces between pixel electrode by the sub-pix unit and the public electrode is regulated the light intensity by the sub-pix unit, realizes Color Liquid Crystal Display.Because quantum dot emission spectrum is narrow and luminescence efficiency is high, bias light can be converted into monochromatic light efficiently, and, colour gamut simulation drawing as shown in Figure 2, because each monochromatic quantum dot layer sends the monochromatic light of different colours, combination such as ruddiness, gold-tinted, green glow, green light and blue light, the colour gamut curve that forms can reach gamut boundary (among the figure shown in the dotted line), with respect to the colour gamut curve that is formed by traditional red green blue tricolor (among the figure shown in the solid line), can improve the colour gamut of LCDs, strengthen color saturation, improved the display quality of display screen.
And, adopt the mode of UV-irradiation formaldehyde-phenol resin derivative and diazonium naphthol derivative potpourri to generate the high molecular polymer network, monochromatic quantum dot is dispersed in the high molecular polymer network, graphical quantum dot layer, prevent the accumulation of quantum dot, increase the quantum yield of quantum dot, excite light efficiency to improve quantum.In addition, the high molecular polymer network can secluding air and monochromatic quantum dot, avoids monochromatic quantum dot to contact with oxygen, has increased the serviceable life of quantum dot.
Particularly, the above-mentioned LCDs that the utility model embodiment provides goes for various patterns, for example go for to realize the plane internal switch (IPS at wide visual angle, In-Plane Switch) and senior super dimension field switch (ADS, Advanced Super Dimension Switch) type LCDs, also go for traditional twisted-nematic (TN, Twisted Nematic) type LCDs, do not do restriction at this.
All be to describe as an example of ADS type LCDs example in the following LCDs that the utility model embodiment provides.
In the specific implementation, the monochromatic quantum dot layer 01 that arranges in each sub-pix unit particularly, can be arranged on array base palte 2 towards a side of liquid crystal layer 3.Example array base palte 2 as shown in Figure 1a also has public electrode 02 and pixel electrode towards a side of liquid crystal layer, and this public electrode 02 in the specific implementation, can be positioned at as shown in Figure 1a on the pixel electrode of array base palte 2, also can be positioned under the pixel electrode, perhaps public electrode and pixel electrode arrange with layer, monochromatic quantum dot layer 01 can be arranged on the public electrode 02 and pixel electrode of array base palte 2, and monochromatic quantum dot layer 01 and public electrode 02 and pixel electrode insulation.Certainly, in the specific implementation, according to preparation technology's needs, also each monochromatic quantum dot layer 01 can be arranged on the side that array base palte 2 deviates from liquid crystal layer 3, perhaps, each monochromatic quantum dot layer 01 is arranged between other retes in the array base palte 2, does not do restriction at this.Bias light shines first each the monochromatic quantum dot layer 01 that is positioned at the sub-pix unit, quantum dot in each monochromatic quantum dot layer 01 is subject to bias light and excites the monochromatic light that generates correspondence, then each monochromatic light is subject to the adjusting of the liquid crystal layer of the electric field controls that produces between public electrode and the pixel electrode, each monochromatic light intensity changes, and realizes Color Liquid Crystal Display.
And, when each monochromatic quantum dot layer 01 is arranged on the array base palte 2, can arrange with layer with each monochromatic quantum dot layer 01 deceiving matrix 03, as shown in Figure 1a, all arrange on the array base palte 2; Certainly, also can be arranged on subtend substrate 1 towards a side of liquid crystal layer 3 with deceiving matrix 03, not do restriction at this.
In the specific implementation, the monochromatic quantum dot layer 01 that arranges in each sub-pix unit particularly, also can be arranged on subtend substrate 1 towards a side of liquid crystal layer 3, shown in Fig. 1 b.Bias light is subject to first the adjusting of the liquid crystal layer of the electric field controls that produces between public electrode and the pixel electrode, the light intensity of bias light changes, then shine each the monochromatic quantum dot layer 01 that is positioned at the sub-pix unit, quantum dot in each monochromatic quantum dot layer 01 is subject to bias light and excites the monochromatic light that generates correspondence, realizes Color Liquid Crystal Display.
In the LCDs that the utility model embodiment provides, deviate from liquid crystal layer one side and also have backlight module being positioned at array base palte, preferably, the bias light of this backlight module emission is blue light, the centre wavelength of blue light is that 450nm is good, so that the monochromatic quantum dot in each monochromatic quantum dot layer sends corresponding monochromatic light after being excited.Certainly, according to the excitation wavelength of the actual quantum dot of selecting, also can select black light as the bias light of excitation quantum point, not do restriction at this.
When selecting each monochromatic quantum dot layer of as a setting optical excitation of blue light, after being absorbed by each monochromatic quantum dot layer, also have blue bias light to see through the sub-pix unit, cause from the monochromatic light of sub-pix unit outgoing impure, can respectively be provided with in correspondence the position of the sub-pix unit of monochromatic quantum dot layer 01, on monochromatic quantum dot layer 01, setting has the absorption layer 04 that absorbs blue light, for example, shown in Fig. 1 a and Fig. 1 b, absorption layer 04 can be arranged on subtend substrate 1 towards a side of liquid crystal layer 3.In addition, the absorption layer 04 that arranges can also block and deviate from the irradiation of liquid crystal layer 3 one sides from subtend substrate 1 and enter the outside blue light of LCDs, avoid the quantum dot in the outside blue-light excited monochromatic quantum dot layer, make the monochromatic light intensity of sub-pix unit outgoing uncontrollable, affect the liquid crystal display quality.
In the specific implementation, the material of absorption layer 04 can adopt 5-(1-methyl-2-pyrroles's methine) if the tannin or derivatives thereof.
Preferably, shown in Fig. 1 a and Fig. 1 b, when selecting each monochromatic quantum dot layer 01 of as a setting optical excitation of blue light, can also directly utilize blue light as one of primary colors that forms pixel cell, even each pixel cell all has the sub-pix unit that shows N different colours, wherein the sub-pix unit of N-1 color is respectively arranged with monochromatic quantum dot layer, 1 sub-pix unit does not arrange monochromatic quantum dot layer, the blue light of light is directly by this sub-pix unit as a setting, penetrate the blue light through liquid crystal layer modulation light intensity, N is the positive integer more than or equal to 2.When N equaled 2, the Show Color of two sub-pix unit of a pixel cell of composition is complementary color each other, as being respectively orange and blue.
In the specific implementation, can become a pixel cell by 4 looks, 5 looks or 6 colour cells, not do restriction at this.For example: when forming a pixel cell by blue, red, green and yellow 4 kinds of colors, a pixel cell has 4 sub-pix unit, these 4 sub-pix unit can be shown in Fig. 3 a permutation and combination, also can be shown in Fig. 3 b permutation and combination, do not do restriction at this.One of them place, sub-pix unit does not arrange monochromatic quantum dot layer, the background blue light directly passes through, be via structure, place, other 3 sub-pix unit is provided with respectively the monochromatic quantum dot layer that glows, the monochromatic quantum dot layer of green light and the monochromatic quantum dot layer of Yellow light-emitting low temperature.And for example: when forming a pixel cell by blue, red, green, yellow and orange 5 kinds of colors, a pixel cell has 5 sub-pix unit, these 5 sub-pix unit can be shown in Fig. 3 c permutation and combination, one of them place, sub-pix unit does not arrange monochromatic quantum dot layer, be via structure, the background blue light directly passes through, and place, other 4 sub-pix unit is provided with respectively the monochromatic quantum dot layer of monochromatic quantum dot layer, Yellow light-emitting low temperature of the monochromatic quantum dot layer that glows, green light and the monochromatic quantum dot layer of sending out light orange.As: when forming a pixel cell by blue, red, green, yellow, orange and blue or green 5 kinds of colors, a pixel cell has 6 sub-pix unit, these 6 sub-pix unit can be shown in Fig. 3 d permutation and combination, one of them place, sub-pix unit does not arrange monochromatic quantum dot layer, be via structure, the background blue light directly passes through, place, other 5 sub-pix unit be provided with respectively monochromatic quantum dot layer, the Yellow light-emitting low temperature of the monochromatic quantum dot layer that glows, green light monochromatic quantum dot layer, send out the monochromatic quantum dot layer of light and the monochromatic quantum dot layer of pastiness light orange.
Sum up it, can select the monochromatic quantum dot layer that after excited by bias light, sends ruddiness, green glow, gold-tinted, orange light or green light etc., control the luminous wave band of quantum dot by the particle diameter of control quantum dot, for example take ZnS as example, the quantum dot size of red-emitting is mainly at 9～10nm, emission gold-tinted quantum dot size 8nm, the quantum dot size of transmitting green light is at 7nm.
Need to prove, the described monochromatic quantum dot layer of the utility model embodiment refers to that the quantum dot that the position of the array base palte corresponding in the sub-pix unit of color of the same race or subtend substrate arranges is identical, the quantum dot that the array base palte that the sub-pix unit of different colours is corresponding or the position of subtend substrate arrange is different, difference can be the difference of quantum dot size or material etc. herein, as long as guarantee only to send after the quantum dot at the place, sub-pix unit of corresponding each color is stimulated to monochromatic light that should the sub-pix cell colors.That is to say, all only can send monochromatic light after the quantum dot of described monochromatic quantum dot layer regional is stimulated, but its monochromatic light that sends of the zone of the sub-pix unit of corresponding different colours is different.
Particularly, be arranged on LCDs on the array base palte as example take above-mentioned each monochromatic quantum dot layer, the manufacture craft of described array base palte shown in Fig. 4 a-Fig. 4 k, comprises following step:
(1) on array base palte 2, forms grid 05, shown in Fig. 4 a;
(2) form gate insulation layer 06 at grid 05, shown in Fig. 4 b;
(3) form active layer 07 at gate insulation layer 06, shown in Fig. 4 c;
(4) form one deck pixel electrode 08 at active layer 07 and gate insulation layer 06, shown in Fig. 4 d;
(5) on pixel electrode 08 and active layer 07, form respectively source-drain electrode 09, shown in Fig. 4 e;
(6) deposition the first insulation (PVX) layer 10 on source-drain electrode 09 and pixel electrode 08 is shown in Fig. 4 f;
(7) on the first insulation (PVX) layer 10, form strip public electrode 02, shown in Fig. 4 g;
(8) form the second insulation (PVX) layer 11 at public electrode 02, shown in Fig. 4 h;
(9) form black matrix 03 at the second insulation (PVX) layer 11, shown in Fig. 4 i;
(10) at black matrix 03 and the monochromatic quantum dot layer 01 of the second insulation (PVX) layer 11 preparation, shown in Fig. 4 j;
(11) form the first protective seam 12 at black matrix 03 and monochromatic quantum dot layer 01, shown in Fig. 4 k.
Accordingly, be arranged on LCDs on the subtend substrate as example take above-mentioned each monochromatic quantum dot layer, the manufacture craft of described subtend substrate shown in Fig. 5 a-Fig. 5 e, comprises following step:
(1) form black matrix 03(BM at subtend substrate 1) the zone, shown in Fig. 5 a;
(2) form absorption layer 04 at black matrix (BM) 03, shown in Fig. 5 b;
(3) at the monochromatic quantum dot layer 01 of absorption layer 04 preparation, shown in Fig. 5 c;
(4) form the second protective seam 13 at monochromatic quantum dot layer 01, shown in Fig. 5 d;
(5) form chock insulator matter (PS) layer 14 at the second protective seam 13, shown in Fig. 5 e.
When in above-mentioned preparation technology, preparing monochromatic quantum dot layer, for fear of because monochromatic quantum dot is piled up the quenching phenomenon that can produce, cause the problem of quantum yield reduction.The monochromatic quantum dot layer of in the LCDs that the utility model embodiment provides each is for being made of the problem of piling up to solve quantum dot high molecular polymer network and the monochromatic quantum dot that is dispersed in the high molecular polymer network.Wherein, the high molecular polymer network be potpourri by formaldehyde-phenol resin derivative and diazonium naphthol derivative under the effect of light trigger, generate by the UV-irradiation polymerization.
Particularly, the utility model embodiment also provides a kind of quantum dot layer patterned method, as shown in Figure 6, comprises following step:
S601, will comprise that the potpourri of monochromatic quantum dot, formaldehyde-phenol resin derivative, diazonium naphthol derivative and light trigger is coated on the substrate;
Particularly, step S601 realizes in the specific implementation in the following way:
(1) with monochromatic quantum dot (among Fig. 7 shown in 1), formaldehyde-phenol resin derivative, diazonium naphthol derivative, mix such as organic solvent and the light trigger of 1-Methoxy-2-propyl acetate, obtains mixed solution; Particularly, monochromatic quantum dot, formaldehyde-phenol resin derivative, diazonium naphthol derivative, 1-Methoxy-2-propyl acetate and light trigger can be mixed, mechanical raking 1 hour is carried out ultrasound wave after complete and is disperseed, after disperseing shown among Fig. 72;
(2) mixed solution is spun on the substrate, shown in Fig. 8 a;
(3) adopt the mode that vacuumizes, remove the organic solvent 1-Methoxy-2-propyl acetate (shown among Fig. 7 3) in the mixed solution, obtain being coated in the potpourri that comprises monochromatic quantum dot, formaldehyde-phenol resin derivative, diazonium naphthol derivative and light trigger on the substrate, shown in Fig. 8 b.
Wherein, the shared mass ratio of monochromatic quantum dot is less than 1%, and the shared mass ratio of formaldehyde-phenol resin derivative is at 15%-30%, and the shared mass ratio of organic solvent 1-Methoxy-2-propyl acetate is at 50%-70%, and the shared mass ratio of light trigger is at 2%-10%.
Particularly, the material of monochromatic quantum dot can be selected CdS, CdSe, CdTe, ZnO, ZnSe, ZnTe and the GaAs of III-V family, GaP, GaAs, GaSb, HgS, HgSe, HgTe, InAs, InP, InSb, AlAs, the materials such as AlP, AlSb of II-VI family.
Particularly, light trigger one of comprises in dibenzoyl peroxide, dilauroyl peroxide, azoisobutyronitrile, ABVN, di-isopropyl peroxydicarbonate and the di-cyclohexylperoxy di-carbonate or combination.
Particularly, the molecular structural formula of formaldehyde-phenol resin derivative is as follows respectively:
Wherein, a=1-100, b=1-100, c=1-30, n=10-300.
Particularly, the molecular structural formula of diazonium naphthol derivative is as follows:
Wherein, R=-CnH2n+1, n=1-10.
S602, ultraviolet light see through the transmission region irradiated substrate of mask plate, shown in Fig. 8 c, make formaldehyde-phenol resin derivative and the polymerization under the effect of light trigger of diazonium naphthol derivative, generate the high molecular polymer network, quantum dot is dispersed in the high molecular polymer network (shown among Fig. 7 4).
Wherein, the process of the epoxy resin generation polymerization in formaldehyde-phenol resin derivative and the diazonium naphthol derivative is as follows:
Further, after generating the high molecular polymer network, further comprising the steps of:
S603, adopt developer solution tetramethylphosphonihydroxide hydroxide base ammonia (CH3) 4NOH) and aqueous solution the substrate that passes through UV-irradiation is developed, wash the potpourri without the UV-irradiation place off, shown in Fig. 8 d.
Particularly, the chemical process of development is as follows:
By after above-mentioned steps S601～figure of monochromatic quantum dot layer is prepared in S603 sub-pix unit, step that can repeating step S601～S603, shown in Fig. 8 e and Fig. 8 f, prepare monochromatic quantum dot layer in other sub-pix unit, detailed process is not done detailed description at this.
The preparation technology of the above-mentioned quantum dot layer that provides by the utility model embodiment, can be on substrate graphical quantum dot layer adopts the high molecular polymer network to disperse monochromatic quantum dot, can prevent that quantum dot from piling up, increase the quantum yield of quantum dot, excite light efficiency to improve quantum.And the high molecular polymer network can secluding air and monochromatic quantum dot, avoids monochromatic quantum dot to contact with oxygen, has increased the serviceable life of quantum dot.
Based on same utility model design, the utility model embodiment also provides a kind of display device, comprise the above-mentioned LCDs that the utility model embodiment provides, because the principle of this device solves problem is similar to aforementioned a kind of LCDs, therefore the enforcement of this device can referring to its enforcement, repeat part and repeat no more.
A kind of LCDs and display device that the utility model embodiment provides, in liquid crystal panel, be provided with a plurality of pixel cells, each pixel cell all has the sub-pix unit of a plurality of demonstration different colours, position corresponding to sub-pix unit at least one color of each pixel cell is provided with monochromatic quantum dot layer, and each monochromatic quantum dot layer sends after excited by bias light monochromatic light that should the sub-pix cell colors.The utility model embodiment adopts quantum dot layer to replace existing color resin as colored filter bias light to be changed into monochromatic light, because quantum dot emission spectrum is narrow and luminescence efficiency is high, bias light can be converted into monochromatic light efficiently, can improve the colour gamut of LCDs, strengthen color saturation, improved the display quality of display screen.And, adopt the mode of UV-irradiation formaldehyde-phenol resin derivative and diazonium naphthol derivative potpourri to generate the high molecular polymer network, monochromatic quantum dot is dispersed in the high molecular polymer network, graphical quantum dot layer, can prevent the accumulation of quantum dot, increase the quantum yield of quantum dot, excite light efficiency to improve quantum.In addition, the high molecular polymer network can secluding air and monochromatic quantum dot, avoids monochromatic quantum dot to contact with oxygen, has increased the serviceable life of quantum dot.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (9)
1. LCDs, comprise: the subtend substrate, array base palte, and the liquid crystal layer between described subtend substrate and described array base palte, be provided with a plurality of pixel cells on the described array base palte, each described pixel cell has the sub-pix unit of a plurality of demonstration different colours, it is characterized in that
Corresponding subtend substrate or the position of array base palte are provided with monochromatic quantum dot layer in the sub-pix unit of at least one color of each pixel cell, and described monochromatic quantum dot layer sends the monochromatic light of corresponding described sub-pix cell colors after excited by bias light.
2. LCDs as claimed in claim 1 is characterized in that,
Described monochromatic quantum dot layer is for being comprised of high molecular polymer network and the monochromatic quantum dot that is dispersed in the described high molecular polymer network.
3. LCDs as claimed in claim 1 or 2 is characterized in that, described monochromatic quantum dot layer is positioned at described array base palte towards a side of described liquid crystal layer, or is positioned at described subtend real estate to a side of described liquid crystal layer.
4. LCDs as claimed in claim 3, it is characterized in that, described array base palte also has public electrode and pixel electrode towards a side of described liquid crystal layer, described monochromatic quantum dot layer is positioned on the pixel electrode and public electrode of described array base palte, and described monochromatic quantum dot layer and described public electrode and pixel electrode insulation.
5. LCDs as claimed in claim 1 or 2 is characterized in that, also comprises: being positioned at the emission bias light that described array base palte deviates from described liquid crystal layer one side is the backlight module of blue light.
6. LCDs as claimed in claim 5, it is characterized in that, each described pixel cell all has the sub-pix unit that shows N different colours, and wherein the sub-pix unit of N-1 color is respectively arranged with described monochromatic quantum dot layer, and N is the positive integer more than or equal to 2.
7. LCDs as claimed in claim 5 is characterized in that, on described monochromatic quantum dot layer, the corresponding position that respectively is provided with the sub-pix unit of monochromatic quantum dot layer also has the absorption layer that absorbs blue light.
8. LCDs as claimed in claim 1 or 2 is characterized in that, described monochromatic quantum dot layer sends ruddiness, green glow, gold-tinted, orange light or green light after excited by bias light.
9. a display device is characterized in that, comprises such as each described LCDs in the claim 1～8.
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| CN 201320174822 CN203241664U (en) | 2013-04-09 | 2013-04-09 | Liquid crystal display screen and display device |
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| CN 201320174822 CN203241664U (en) | 2013-04-09 | 2013-04-09 | Liquid crystal display screen and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353629A (en) * | 2013-07-17 | 2013-10-16 | 杭州纳晶科技有限公司 | Color filter and display screen |
| TWI580031B (en) * | 2013-12-26 | 2017-04-21 | 鴻海精密工業股份有限公司 | Color conversion layer, organic light emitting device, and liquid crystal display panel |
| CN106773328A (en) * | 2017-03-31 | 2017-05-31 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| US11635555B2 (en) | 2017-08-30 | 2023-04-25 | Boe Technology Group Co., Ltd. | Colour film sheet and fabricating method therefor, colour film substrate, and display apparatus |
-
2013
- 2013-04-09 CN CN 201320174822 patent/CN203241664U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353629A (en) * | 2013-07-17 | 2013-10-16 | 杭州纳晶科技有限公司 | Color filter and display screen |
| TWI580031B (en) * | 2013-12-26 | 2017-04-21 | 鴻海精密工業股份有限公司 | Color conversion layer, organic light emitting device, and liquid crystal display panel |
| US9720149B2 (en) | 2013-12-26 | 2017-08-01 | Hon Hai Precision Industry Co., Ltd. | Display device with color conversion layer for full-color display |
| CN106773328A (en) * | 2017-03-31 | 2017-05-31 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| WO2018176520A1 (en) * | 2017-03-31 | 2018-10-04 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| US11635555B2 (en) | 2017-08-30 | 2023-04-25 | Boe Technology Group Co., Ltd. | Colour film sheet and fabricating method therefor, colour film substrate, and display apparatus |
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