CN103941392A - Electrowetting display panel and display device - Google Patents
Electrowetting display panel and display device Download PDFInfo
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- CN103941392A CN103941392A CN201410146282.6A CN201410146282A CN103941392A CN 103941392 A CN103941392 A CN 103941392A CN 201410146282 A CN201410146282 A CN 201410146282A CN 103941392 A CN103941392 A CN 103941392A
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Abstract
The invention relates to the technical field of display, and discloses an electrowetting display panel and a display device. The display panel comprises a first substrate and a second substrate which are oppositely arranged, wherein a first transparent electrode and an electric control dielectric layer of electrogenerated hydrophilic shading fluid or hydrophobic shading fluid are formed on the first substrate, a quantum dot solution is arranged between the shading fluid and the second substrate, when voltage is applied to the electric control dielectric layer through the first transparent electrode, shrinkage of the shading fluid is controlled, the quantum dot solution is exposed, light entering from the back side of the first substrate is irradiated to the quantum dot solution, quantum dots are stimulated to give out light automatically, colored display is achieved, high display brightness is achieved, the color is bright, color saturation is good, and the display effect is improved. Meanwhile, a sealed grid-shaped space is filled with the quantum dot solution and the shading fluid which are not compatible with each other, the transmission-type colored display device can be implemented through a single-layer electrowetting structure, the structure is simple, and the manufacturing technology is simplified.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of Electrowetting display panel and display device.
Background technology
The principle of wetting (Electrowetting) display technique of electricity is to utilize electric wetting phenomena or electrochemical kapillary (Electrocapillary) phenomenon, be subject to by controlling fluid the surface free energy (Free Surface Energy) that electric field action changes fluid, the distribution area of fluid is changed, and then the variation of control pixel, to realize concrete display effect.The wetting display technique of electricity has the feature of low-power consumption, wide viewing angle and high response speed with it and receives much attention.
At present, colored electroweting display is the emphasis direction of research and development, and in prior art, colored electric moistening display mainly contains three kinds, respectively:
The first is pre-filter method.On the first substrate of display screen, be provided with colored filter, this colored filter comprises multiple RGB sub-pixels that are matrix distribution, and each sub-pixel is corresponding with a transparency electrode.The surface of this colored filter is also provided with transparent common electrode.
The second is dyed layer colour filter method.On drain insulating layer surface, dyed layer is set, this dyed layer comprises multiple RGB sub-pixels that are matrix distribution, and each sub-pixel is corresponding with a transparency electrode.
The third is color oil process.First fluid covers drain insulating layer surface, and thickness is less than the height of partition wall, and material is generally oiliness, opaque.This first fluid has tri-kinds of colors of RGB, is distributed in each drain insulating layer surface corresponding with sub-pixel, and first substrate is provided with transparent common electrode.
These three kinds of methods all have common shortcoming: be all passive reflective display, so display brightness is low, picture is darker, and colour gamut is lower, thereby display effect is bad.
Summary of the invention
The invention provides a kind of Electrowetting display panel and display device, in order to solve the bad problem of colored electric moistening display display effect in prior art.
For solving the problems of the technologies described above, the invention provides a kind of Electrowetting display panel, comprising: the first substrate being oppositely arranged and second substrate, and multiple divider walls between described first substrate and second substrate, described multiple divider wall is trellis and is arranged on described first substrate, also comprises:
Mutual exclusive quantum dot solution and shading fluid, be filled in the sealing lattice space that adjacent divider wall forms, and described shading fluid is between described quantum dot solution and first substrate;
Automatically controlled dielectric layer, between described shading fluid and first substrate, has electricity and causes the characteristic of close shading fluid or thin shading fluid;
The first transparency electrode, between described automatically controlled dielectric layer and first substrate, the region at corresponding described sealing lattice space place, and adjacent the first transparency electrode interval arranges.
Meanwhile, the present invention also provides a kind of display device, and it comprises Electrowetting display panel as above;
Also being included as described Electrowetting display panel provides the backlight of light.
The beneficial effect of technique scheme of the present invention is as follows:
In technique scheme, Electrowetting display panel comprises the first substrate and the second substrate that are oppositely arranged, on first substrate, form the automatically controlled dielectric layer that the first transparency electrode and electricity cause close shading fluid or thin shading fluid, between shading fluid and second substrate, quantum dot solution is set, in the time applying voltage to automatically controlled dielectric layer by the first transparency electrode, control shading fluid contraction, expose quantum dot solution, be irradiated to quantum dot solution from the light of first substrate back surface incident, quantum dot is excited autoluminescence, realize colored demonstration, and there is higher display brightness, and bright in luster, color saturation is good, improve display effect.Meanwhile, mutual exclusive quantum dot solution and shading fluid filling, in sealing lattice space, can be realized by the wetting structure of individual layer electricity the colour display device of transmission-type, simple in structure, simplify manufacture craft.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 represents the structural representation of Electrowetting display panel in the embodiment of the present invention;
The vertical view of first substrate in Fig. 2 presentation graphs 1;
Fig. 3 represents the work schematic diagram of Electrowetting display panel in the embodiment of the present invention;
The vertical view of first substrate in Fig. 4 presentation graphs 2.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Embodiment mono-
Shown in Fig. 1 and Fig. 2, a kind of Electrowetting display panel is provided in the embodiment of the present invention, it comprises the first substrate 1 and the second substrate 2 that are oppositely arranged, and multiple divider walls 3 between first substrate 1 and second substrate 2.Multiple divider walls 3 are trellis and are arranged on first substrate 1, and adjacent divider wall 3 forms multiple sealing lattice spaces 31, define the sub-pixel unit of Electrowetting display panel.Wherein, first substrate 1 and second substrate 2 are transparency carrier, as: quartz base plate, glass substrate or organic resin substrate.
In multiple sealing lattice spaces 31, be filled with mutual exclusive quantum dot solution 4 and shading fluid 5, shading fluid 5, between quantum dot solution 4 and first substrate 1, is irradiated to quantum dot solution 4 for the light 10 that stops the incident that (deviates from a side of second substrate 2) from first substrate 1 back side.Automatically controlled dielectric layer 6 is set between shading fluid 5 and first substrate 1, the first transparency electrode 7 is set between automatically controlled dielectric layer 6 and first substrate 1, wherein, automatically controlled dielectric layer 6 has electricity and causes the characteristic of close shading fluid or thin shading fluid, the region at the corresponding sealing of the first transparency electrode 7 lattice space 31 places, and adjacent the first transparency electrode 7 intervals arrange.While automatically controlled dielectric layer 6 being applied to voltage by the first transparency electrode 7, due to electrowetting effect, the contact angle of the shading fluid 5 in corresponding sealing lattice space 31 reduces, and causes shading fluid 5 to shrink, expose quantum dot solution 4, be irradiated to quantum dot solution 4 from the light 10 of first substrate 1 back surface incident, make quantum dot in quantum dot solution 4 be excited autoluminescence, realize colored demonstration, and there is higher display brightness, and bright in luster, color saturation is good, has improved display effect.
Further, the lateral size of dots difference in adjacent seals lattice space 31 is set, the color difference of being excited to emit beam, to realize full-color demonstration.
In technical scheme of the present invention, Electrowetting display panel comprises the first substrate and the second substrate that are oppositely arranged, on first substrate, form the automatically controlled dielectric layer that the first transparency electrode and electricity cause close shading fluid or thin shading fluid, between shading fluid and second substrate, quantum dot solution is set, in the time applying voltage to automatically controlled dielectric layer by the first transparency electrode, cause shading fluid contraction, expose quantum dot solution, be irradiated to quantum dot solution from the light of first substrate back surface incident, quantum dot is excited autoluminescence, realize colored demonstration, and there is higher display brightness, and bright in luster, color saturation is good, improve display effect.Meanwhile, mutual exclusive quantum dot solution and shading fluid filling, in sealing lattice space, can be realized by the wetting structure of individual layer electricity the colour display device of transmission-type, simple in structure, simplify manufacture craft.
It should be noted that, the quantum dot solution 4 in the present invention is water miscible nano-quantum point solution.Wherein, 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 changing the size of quantum dot and its chemical composition.Taking CdTe quantum as example, in the time that its particle diameter grows into 4.0nm from 2.5nm, their emission wavelength can be from 510nm red shift to 660nm.And quantum dot has good light stability, and wide excitation spectrum and narrow emission spectrum.Use same excitation source (mostly being blue light, purple light or ultraviolet excitation light source) just can realize the quantum dot of different-grain diameter is excited, send multi-wavelength's light.
Concrete, shading fluid 5 can be mixed in oil droplet and be made by oil-soluble black pigment or black dyes.Automatically controlled dielectric layer 6 can be teflon, and its oleophylic functional group is oleophylic carbochain, and oleophobic functional group is OH functional group.When the first transparency electrode 7 energies of position are timing, its oleophylic carbochain comes out, and shows as lipophilicity, the surface of shading fluid 5 wetting automatically controlled dielectric layers 6; When the first transparency electrode 7 energies of position are when negative, outside, oleophylic carbochain is hidden in its OH functional group, shows as oleophobic property, and shading fluid 5 shrinks, the surface of nonwetting automatically controlled dielectric layer 6.But the material of shading fluid 5 and automatically controlled dielectric layer 6 is not limited to this.
Preferably, divider wall 3 is made up of hydrophilic insulating material, as: epikote, can allow quantum dot solution 4 remain full of state in sealing lattice space 31, improve display effect.
In the present embodiment, also be formed with the second transparency electrode 8 at second substrate 2 near the surface of first substrate 1, itself and the first transparency electrode 7 actings in conjunction, provide certain voltage to automatically controlled dielectric layer 6, controls automatically controlled dielectric layer 6 and show as the characteristic of close shading fluid 5 or thin shading fluid 5.Wherein, the material of the first transparency electrode 7 and the second transparency electrode 8 can be tin indium oxide (ITO) or indium zinc oxide (IZO).
Specific works principle of the present invention is:
Shown in Fig. 1 and Fig. 2, when between the first transparency electrode 7 and the second transparency electrode 8 when no-voltage, shading fluid 5 is paved with in whole sealing lattice space 31, cannot see through shading fluid 5 from the light 10 of first substrate 1 back surface incident and be irradiated to quantum dot solution 4, Electrowetting display panel is complete black state;
Shown in Fig. 3 and Fig. 4, when apply voltage between the first transparency electrode 7 and the second transparency electrode 8 time, shading fluid 5 shrinks, expose quantum dot solution 4, be irradiated to quantum dot solution 4 from light 10 light 9 of first substrate 1 back surface incident, the quantum dot in quantum dot solution 4 is excited to send bright gay colours.Be applied to the size of voltage between the first transparency electrode 7 and the second transparency electrode 8 by control, can control the degree that shading fluid 5 shrinks, control light 10 how much irradiant after Electrowetting display panel, to realize the demonstration of different GTGs.Lateral size of dots difference in quantum dot solution 4 in adjacent seals lattice space 31, is excited to send the photochromic of different colours, can realize full-color demonstration.
In order to realize full-color demonstration, quantum dot solution 4 can comprise be excited to send ruddiness R quantum dot solution, be excited to send the G quantum dot solution of green glow and be excited to send the B quantum dot solution of blue light.The pixel cell of Electrowetting display panel comprises three sealing lattice spaces 31 adjacent and that wherein fill respectively R quantum dot solution, G quantum dot solution and B quantum dot solution.The color that quantum dot solution 4 emits beam can realize by the diameter of controlling quantum dot in quantum dot solution 4.
Certainly, quantum dot solution 4 can also comprise the Y quantum dot solution of being excited to send the M quantum dot solution of the C quantum dot solution of green light, the magenta light that is stimulated out and being excited to send gold-tinted.
Embodiment bis-
A kind of display device is also provided in the embodiment of the present invention, and it comprises the Electrowetting display panel in embodiment mono-, and being also included as Electrowetting display panel provides the backlight of light.Wherein, backlight can comprise blue light, purple light or ultraviolet excitation light source.
By utilizing the autoluminescence of being excited of quantum dot solution, can improve brightness and the color saturation of display device, improve display effect.And mutual exclusive quantum dot solution and shading solution are filled in sealing lattice space, can realize by the wetting structure of individual layer electricity the colour display device of transmission-type, simple in structure, simplify manufacture craft.
Electrowetting display panel in the present invention comprises the first substrate and the second substrate that are oppositely arranged, on first substrate, form the automatically controlled dielectric layer that the first transparency electrode and electricity cause close shading fluid or thin shading fluid, between shading fluid and second substrate, quantum dot solution is set, in the time applying voltage to automatically controlled dielectric layer by the first transparency electrode, cause shading fluid contraction, expose quantum dot solution, be irradiated to quantum dot solution from the light of first substrate back surface incident, quantum dot is excited autoluminescence, realize colored demonstration, and there is higher display brightness, and bright in luster, color saturation is good, improve display effect.Meanwhile, mutual exclusive quantum dot solution and shading fluid filling, in sealing lattice space, can be realized by the wetting structure of individual layer electricity the colour display device of transmission-type, simple in structure, simplify manufacture craft.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (10)
1. an Electrowetting display panel, comprise: the first substrate being oppositely arranged and second substrate, and multiple divider walls between described first substrate and second substrate, described multiple divider walls are trellis and are arranged on described first substrate, it is characterized in that, also comprise:
Mutual exclusive quantum dot solution and shading fluid, be filled in the sealing lattice space that adjacent divider wall forms, and described shading fluid is between described quantum dot solution and first substrate;
Automatically controlled dielectric layer, between described shading fluid and first substrate, has electricity and causes the characteristic of close shading fluid or thin shading fluid;
The first transparency electrode, between described automatically controlled dielectric layer and first substrate, the region at corresponding described sealing lattice space place, and adjacent the first transparency electrode interval arranges.
2. Electrowetting display panel according to claim 1, is characterized in that, the lateral size of dots difference in adjacent seals lattice space.
3. Electrowetting display panel according to claim 1, is characterized in that, also comprises:
The second transparency electrode, is formed on the surface of second substrate near first substrate.
4. Electrowetting display panel according to claim 3, is characterized in that, the material of described the first transparency electrode and the second transparency electrode is ITO or IZO.
5. Electrowetting display panel according to claim 1, is characterized in that, described quantum dot solution comprises:
Be excited to send the R quantum dot solution of ruddiness;
Be excited to send the G quantum dot solution of green glow;
Be excited to send the B quantum dot solution of blue light.
6. Electrowetting display panel according to claim 1, is characterized in that, the material of described automatically controlled dielectric layer is teflon.
7. Electrowetting display panel according to claim 1, is characterized in that, the material of described divider wall is hydrophilic insulating material.
8. Electrowetting display panel according to claim 7, is characterized in that, the material of described divider wall is epikote.
9. a display device, is characterized in that, comprises the Electrowetting display panel described in claim 1-8 any one;
Also being included as described Electrowetting display panel provides the backlight of light.
10. display device according to claim 9, is characterized in that, described backlight comprises blue light, purple light or ultraviolet excitation light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410146282.6A CN103941392A (en) | 2014-04-11 | 2014-04-11 | Electrowetting display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410146282.6A CN103941392A (en) | 2014-04-11 | 2014-04-11 | Electrowetting display panel and display device |
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| CN103941392A true CN103941392A (en) | 2014-07-23 |
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| CN201410146282.6A Pending CN103941392A (en) | 2014-04-11 | 2014-04-11 | Electrowetting display panel and display device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106373532A (en) * | 2016-10-27 | 2017-02-01 | 合肥京东方显示技术有限公司 | Array substrate, electrowetting display panel and display device |
| CN108231011A (en) * | 2018-01-17 | 2018-06-29 | 福州大学 | Quantum dot electrowetting display device |
| CN108878690A (en) * | 2018-07-02 | 2018-11-23 | 京东方科技集团股份有限公司 | Production method, the display device of display base plate |
| CN108873598A (en) * | 2018-08-16 | 2018-11-23 | 京东方科技集团股份有限公司 | Mask set and its control method |
| WO2021196277A1 (en) * | 2020-03-30 | 2021-10-07 | 深圳市华星光电半导体显示技术有限公司 | Quantum dot display device and manufacturing method therefor, and medium |
| TWI742335B (en) * | 2018-12-25 | 2021-10-11 | 友達光電股份有限公司 | Display panel and method for operating the same |
| CN116603172A (en) * | 2023-06-06 | 2023-08-18 | 东莞市红富照明科技有限公司 | Flexible quantum dot far infrared physiotherapy belt |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373532A (en) * | 2016-10-27 | 2017-02-01 | 合肥京东方显示技术有限公司 | Array substrate, electrowetting display panel and display device |
| CN108231011A (en) * | 2018-01-17 | 2018-06-29 | 福州大学 | Quantum dot electrowetting display device |
| CN108231011B (en) * | 2018-01-17 | 2020-05-08 | 福州大学 | Quantum dot electrowetting display device |
| CN108878690A (en) * | 2018-07-02 | 2018-11-23 | 京东方科技集团股份有限公司 | Production method, the display device of display base plate |
| CN108878690B (en) * | 2018-07-02 | 2020-04-28 | 京东方科技集团股份有限公司 | Manufacturing method of display substrate and display device |
| CN108873598A (en) * | 2018-08-16 | 2018-11-23 | 京东方科技集团股份有限公司 | Mask set and its control method |
| CN108873598B (en) * | 2018-08-16 | 2021-10-12 | 京东方科技集团股份有限公司 | Mask device and control method thereof |
| US11194193B2 (en) | 2018-08-16 | 2021-12-07 | Boe Technology Group Co., Ltd. | Mask assembly, mask apparatus and mask control method |
| TWI742335B (en) * | 2018-12-25 | 2021-10-11 | 友達光電股份有限公司 | Display panel and method for operating the same |
| WO2021196277A1 (en) * | 2020-03-30 | 2021-10-07 | 深圳市华星光电半导体显示技术有限公司 | Quantum dot display device and manufacturing method therefor, and medium |
| CN116603172A (en) * | 2023-06-06 | 2023-08-18 | 东莞市红富照明科技有限公司 | Flexible quantum dot far infrared physiotherapy belt |
| CN116603172B (en) * | 2023-06-06 | 2024-01-02 | 东莞市红富照明科技有限公司 | Flexible quantum dot far infrared physiotherapy belt |
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