CN112068379B - Reflection-transmission switchable device, preparation method thereof and display device - Google Patents
Reflection-transmission switchable device, preparation method thereof and display device Download PDFInfo
- Publication number
- CN112068379B CN112068379B CN202010946393.0A CN202010946393A CN112068379B CN 112068379 B CN112068379 B CN 112068379B CN 202010946393 A CN202010946393 A CN 202010946393A CN 112068379 B CN112068379 B CN 112068379B
- Authority
- CN
- China
- Prior art keywords
- transparent electrode
- shell
- metal core
- reflective
- switchable device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1676—Electrodes
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The application discloses a reflection-transmission switchable device, a preparation method thereof and a display device, wherein the reflection-transmission switchable device comprises a first transparent electrode and a second transparent electrode; and a non-polar solvent filled between the first transparent electrode and the second transparent electrode; the metal core-shell nano particles are dispersed in the nonpolar solvent; when a positive electric field is applied between the first transparent electrode and the second transparent electrode, the metal core-shell nano particles are gathered on the surface of the first transparent electrode with high electric potential to form a reflecting film layer; and after the reflecting film layer is formed, applying a transient reverse electric field between the first transparent electrode and the second transparent electrode or canceling the positive electric field, and uniformly dispersing the metal core-shell nanoparticles gathered on the surface of the first transparent electrode into the nonpolar solvent again.
Description
Technical Field
The application relates to the field of display panels, in particular to a reflection-transmission switchable device, a preparation method thereof and a display device.
Background
The traditional electronic paper display is a bistable reflective display, and has the advantages of energy conservation and strong readability in bright environment. Based on black and white electronic paper display, companies such as Eink develop color electronic paper display, and the display effect is improved. However, devices such as electronic paper generally do not have a function of transparent display, and if the device is similar to a transparent design of LCD, a transparent area is directly designed outside a display area, and a reflective display area is spatially separated from the transparent area.
The novel reflection type display of a class has emerged in the existing market, and the reflecting surface is attached to the outer surface of the traditional display, so that the effect of partial reflection and partial display is realized, and at the moment, the reflected light and the light emitted by the display are mixed together, and the display effect is poor.
Therefore, there is a need to develop a new display device to overcome the drawbacks of the prior art.
Disclosure of Invention
An object of the present invention is to provide a display device which can solve the problem of poor display effect caused by mixing of reflected light and light emitted from a display in the prior art.
To achieve the above object, the present invention provides a reflective-transmissive switchable device, comprising a first transparent electrode and a second transparent electrode; and a non-polar solvent filled between the first transparent electrode and the second transparent electrode; the metal core-shell nano particles are dispersed in the nonpolar solvent; when a positive electric field is applied between the first transparent electrode and the second transparent electrode, the metal core-shell nano particles are gathered on the surface of the first transparent electrode with high electric potential to form a reflecting film layer; after the reflective film layer is formed, when a transient reverse electric field is applied between the first transparent electrode and the second transparent electrode or the positive electric field is removed, the metal core-shell nanoparticles gathered on the surface of the first transparent electrode are re-uniformly dispersed into the nonpolar solvent.
Further, in other embodiments, wherein the metal core-shell nanoparticles are Ag — SiO 2 The core of the metal core-shell nano particle is made of nano silver, the shell layer of the metal core-shell nano particle is made of silicon oxide, and the nonpolar solvent is an oily solvent. And when the nano silver is gathered on the surface of the first transparent electrode to form a silver reflecting film layer, the silver reflecting film layer is a high reflecting layer.
The shell layer of the metal core-shell nano particles can prevent the agglomeration among the cores of the metal core-shell nano particles, and simultaneously prevent the high current caused by the overhigh conductivity of the solution.
Further, in other embodiments, other highly reflective nanoparticles that can be driven by an electric field can be used as the metal core-shell nanoparticles.
Further, in other embodiments, wherein the core of the metallic core-shell nanoparticle is positively charged and the shell of the metallic core-shell nanoparticle is negatively charged.
Further, in other embodiments, wherein the oil-soluble solvent is ethanol.
Further, in other embodiments, wherein when the metal core-shell nanoparticles are dispersed in the non-polar solvent, the closer the refractive index of the non-polar solvent is to the refractive index of the shell layer silica, the better the light transmission of the reflective transmissive switchable device.
Further, in other embodiments, wherein the non-polar solvent has a refractive index in the range of 1.4 to 1.7, the shell silica has a refractive index in the range of 1.4 to 1.7.
Further, in other embodiments, wherein the nanosilver particle size is less than 20nm, the shell silica has a thickness of less than 100nm.
In order to achieve the above object, the present invention further provides a method for manufacturing the reflective-transmissive switchable device according to the present invention, the method comprising the steps of: preparing a first transparent electrode and a second transparent electrode; preparing a non-polar solvent; preparing metal core-shell nano particles, and dispersing the metal core-shell nano particles in the nonpolar solvent to form a solution; filling the solution between the first transparent electrode and the second transparent electrode.
Further, in other embodiments, wherein the step of preparing the metal core-shell nanoparticles comprises preparing nano silver; putting the nano silver into an ethanol solvent, and stirring; adding ammonia water into an ethanol solvent, and uniformly mixing; adding tetraethoxysilane, and centrifugally cleaning to form the metal core-shell nano particles, wherein the core of the metal core-shell nano particles is nano silver, and the shell of the metal core-shell nano particles is silicon oxide.
Further, in other embodiments, wherein in the step of preparing the nano silver, reducing silver nitrate by using sodium citrate and glucose together, and polyvinylpyrrolidone as a dispersing agent, uniformly dispersed nano silver is obtained.
Further, in other embodiments, wherein the tetraethoxysilane is hydrolyzed to form monosilicic acid and ethanol, condensation between silicic acid or silicic acid and tetraethoxysilane forms silicon oxide.
Further, in other embodiments, the shell thickness of the metal core-shell nanoparticles is adjusted by adjusting the amount of the tetraethoxysilane, and the larger the amount of the tetraethoxysilane, the larger the shell thickness of the metal core-shell nanoparticles is. In another embodiment, after the tetraethoxysilane, the shell thickness of the metal core-shell nanoparticles may be adjusted by adjusting the time for centrifugal washing, wherein the longer the time for centrifugal washing, the larger the shell thickness of the metal core-shell nanoparticles.
In order to achieve the above object, the present invention also provides a display device, including a display panel having a display area; the reflection and transmission switchable device is attached to one side of the display surface of the display panel and is positioned in the display area.
Further, in other embodiments, the second transparent electrode is attached to the display surface side of the display panel.
When a positive electric field is applied between the first transparent electrode and the second transparent electrode, the metal core-shell nano particles are gathered on the surface of the first transparent electrode with high electric potential to form a reflecting film layer, and at the moment, the reflection-transmission switchable device is in a reflecting state and shields the display panel; after the reflective film layer is formed, when an instantaneous reverse electric field is applied between the first transparent electrode and the second transparent electrode or the positive electric field is cancelled, the metal core-shell nanoparticles gathered on the surface of the first transparent electrode are re-uniformly dispersed into the nonpolar solvent, at this time, the reflective-transmissive switchable device is in a transmissive state, and the display panel displays a picture through the reflective-transmissive switchable device.
Compared with the prior art, the invention has the beneficial effects that: when a positive electric field is applied between a first transparent electrode and a second transparent electrode, metal core-shell nano particles are gathered on the surface of the first transparent electrode with high potential to form a reflecting film layer, and the reflecting and transmitting switchable device is in a reflecting state and shields a display panel; after the reflective film layer is formed, when an instantaneous reverse electric field is applied between the first transparent electrode and the second transparent electrode or the positive electric field is cancelled, the metal core-shell nanoparticles gathered on the surface of the first transparent electrode are re-uniformly dispersed into the nonpolar solvent, at this time, the reflective-transmissive switchable device is in a transmissive state, and the display panel displays a picture through the reflective-transmissive switchable device. After the reflection-transmission switchable device and the traditional display panel are used in a combined mode, the outer surface of the display can be in a reflection/transparent state, so that the working mode of the display can be adjusted, and the problem of poor display effect when reflection and transmission simultaneously occur is solved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a reflective-transmissive switchable device according to an embodiment of the present invention in a reflective state;
fig. 2 is a schematic structural diagram of a reflective-transmissive switchable device in a projection state according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for manufacturing a reflective-transmissive switchable device according to an embodiment of the present invention.
Description of the drawings:
reflective transmissive switchable device-100;
a first transparent electrode-10; a second transparent electrode-20;
metal core-shell nanoparticles-30; non-polar solvent-40;
a reflective film layer-50.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. To simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.
Referring to fig. 1 and 2, fig. 1 and 2 are schematic structural diagrams of a reflective-transmissive switchable device 100 according to an embodiment of the present invention in a reflective state and in a transmissive state, respectively.
The reflective transmissive switchable device 100 includes a first transparent electrode 10, a second transparent electrode 20, metal core shell nanoparticles 30, and a non-polar solvent 40.
The first transparent electrode 10 and the second transparent electrode 20 are disposed opposite to each other, the nonpolar solvent 40 is filled between the first transparent electrode 10 and the second transparent electrode 20, and the metal core-shell nanoparticles 30 are dispersed in the nonpolar solvent 40. The first and second transparent electrodes 10 and 20 may or may not be patterned.
In this embodiment, the core of the metal core-shell nanoparticle 30 is positively charged, and the shell of the metal core-shell nanoparticle 30 is negatively charged. When a positive electric field is applied between the first transparent electrode 10 and the second transparent electrode 20, the metal core-shell nanoparticles 30 aggregate to form a reflective film layer 50 on the surface of the first transparent electrode 10 with a high electric potential, and the reflective-transmissive switchable device 100 is in a reflective state; when a transient reverse electric field is applied or a positive electric field is removed between the first transparent electrode 10 and the second transparent electrode 20 after the reflective film layer 50 is formed, the metal core-shell nanoparticles 30 gathered on the surface of the first transparent electrode 10 are re-uniformly dispersed into the non-polar solvent 40, and the reflective transmissive switchable device 100 is in a transmissive state.
In the present embodiment, the metal core-shell nanoparticles 30 are Ag-SiO 2 In the particles, nano silver is adopted as the core of the metal core-shell nano particles 30, and silicon oxide is adopted as the shell of the metal core-shell nano particles 30. The grain diameter of the nano silver is less than 20nm, and the thickness of the shell layer silicon oxide is less than 100nm.
When the nano silver is gathered on the surface of the first transparent electrode 10 to form the silver reflective film layer 50, the silver reflective film layer 50 is a high reflective layer.
The shell layer of the metal core-shell nanoparticles 30 can prevent the agglomeration between the cores of the metal core-shell nanoparticles 30, and simultaneously prevent the solution from generating large current due to too high conductivity.
In other embodiments, other highly reflective nanoparticles that can be driven by an electric field can be used for the metal core shell nanoparticles 30.
In the present embodiment, the nonpolar solvent 40 is an oily solvent, and the oily solvent is nonconductive, and specifically, ethanol is used as the oil-soluble solvent.
When the metal core shell nanoparticles 30 are dispersed in the non-polar solvent 40, the closer the refractive index of the non-polar solvent 40 is to that of the shell layer silicon oxide, the better the light transmittance of the reflective transmissive switchable device 100.
Wherein the non-polar solvent 40 has a refractive index ranging from 1.4 to 1.7, and the shell silica has a refractive index ranging from 1.4 to 1.7.
An embodiment of the present invention further provides a manufacturing method for manufacturing the reflective-transmissive switchable device 100 according to the present invention, please refer to fig. 3, fig. 3 is a flowchart of the manufacturing method of the reflective-transmissive switchable device according to the embodiment of the present invention, and the manufacturing method includes steps 1 to 4.
Step 1: a first transparent electrode 10 and a second transparent electrode 20 are prepared, and the first transparent electrode 10 and the second transparent electrode 20 are oppositely disposed.
Step 2: a non-polar solvent 40 is prepared.
And step 3: the metal core-shell nanoparticles 30 are prepared and dispersed in a non-polar solvent 40 to form a solution.
Wherein specifically comprises
Step 31: preparing nano silver; wherein, the uniformly dispersed nano silver is obtained by using the sodium citrate and the glucose to jointly reduce the silver nitrate and using the polyvinylpyrrolidone as the dispersing agent.
Step 32: putting the nano silver into an ethanol solvent, and stirring;
step 33: adding ammonia water into an ethanol solvent, and uniformly mixing;
step 34: adding tetraethoxysilane, and centrifugally cleaning to form the metal core-shell nano particles 30, wherein the core of the metal core-shell nano particles 30 is nano silver, and the shell of the metal core-shell nano particles 30 is silicon oxide. The silicon oxide is used for coating the nano silver by using a strong chemical bond formed among the core-shell particles. When the metal core-shell nano particles are synthesized, the surface of the nano silver is positively charged, the surface of the silicon oxide is negatively charged, and the silicon oxide can be diffused and grown on the surface of the nano silver through electrostatic force.
Wherein, the tetraethoxysilane is hydrolyzed to form monosilicic acid and ethanol, and the silicic acid or the silicic acid and the tetraethoxysilane are condensed to form silicon oxide.
The shell layer of the metal core-shell nanoparticles 30 can prevent agglomeration between the cores of the metal core-shell nanoparticles 30, and also prevent a large current caused by too high solution conductivity.
The shell thickness of the metal core-shell nanoparticles 30 is adjusted by adjusting the amount of tetraethoxysilane, and the larger the amount of tetraethoxysilane is, the larger the shell thickness of the metal core-shell nanoparticles 30 is. In another embodiment, the shell thickness of the metal core-shell nanoparticles 30 may be adjusted by adjusting the time of the centrifugal washing after the ethyl orthosilicate, and the shell thickness of the metal core-shell nanoparticles 30 is increased as the time of the centrifugal washing is longer.
And 4, step 4: the solution is filled between the first transparent electrode 10 and the second transparent electrode 20.
When a positive electric field is applied between the first transparent electrode 10 and the second transparent electrode 20, a potential difference of 5-15V/um exists between the first transparent electrode 10 and the second transparent electrode 20, and due to the action of an electric field force, the metal core-shell nanoparticles 30 are gathered on the surface of the first transparent electrode 10 with high potential to form a reflective film layer 50, and at this time, the reflective-transmissive switchable device 100 is in a reflective state; after the reflective film layer 50 is formed, when a transient reverse electric field is applied between the first transparent electrode 10 and the second transparent electrode 20 or a positive electric field is removed, the transient time is required to be limited to less than 100ms, the reverse electric field is less than 30V/um, at this time, the metal core-shell nanoparticles 30 gathered on the surface of the first transparent electrode 10 are re-uniformly dispersed into the non-polar solvent 40, and the reflective-transmissive switchable device 100 is in a transmissive state.
In order to achieve the above object, the present invention also provides a display device, including a display panel having a display area; and the reflective transmissive switchable device 100 of the present invention is attached to one side of the display surface of the display panel and located in the display region. The second transparent electrode 20 is attached to one side of the display surface of the display panel, and the first transparent electrode 10 is located at a side far away from the display panel.
When a positive electric field is applied between the first transparent electrode 10 and the second transparent electrode 20, the metal core-shell nanoparticles 30 are gathered on the surface of the first transparent electrode 10 with high electric potential to form a reflective film layer, and at this time, the reflective-transmissive switchable device 100 is in a reflective state and shields the display panel; after the reflective film layer is formed, when an instantaneous reverse electric field is applied between the first transparent electrode 10 and the second transparent electrode 20 or a positive electric field is removed, the metal core-shell nanoparticles 30 gathered on the surface of the first transparent electrode 10 are re-uniformly dispersed into the non-polar solvent 40, at this time, the reflective-transmissive switchable device 100 is in a transmissive state, and the display panel displays a picture through the reflective-transmissive switchable device. When the reflective mode works, the mirror effect of the light reflected by the nano-silver on the upper surface is mainly displayed, and when the transmissive mode works, the display effect of the normal display is mainly displayed.
The invention has the beneficial effects that: when a positive electric field is applied between a first transparent electrode 10 and a second transparent electrode 20, metal core-shell nano particles 30 are gathered on the surface of the first transparent electrode 10 with high potential to form a reflecting film layer, and at the moment, the reflection and transmission switchable device 100 is in a reflecting state and shields a display panel; after the reflective film layer is formed, when a transient reverse electric field is applied between the first transparent electrode 10 and the second transparent electrode 20 or a positive electric field is removed, the metal core-shell nanoparticles 30 gathered on the surface of the first transparent electrode 10 are re-uniformly dispersed into the non-polar solvent 40, at this time, the reflective transmissive switchable device 100 is in a transmissive state, and the display panel displays a picture through the reflective transmissive switchable device. After the reflection-transmission switchable device is used with a traditional display panel in a combined mode, a reflection/transparent state can be presented on the outer surface of the display, so that the working mode of the display can be adjusted, and the problem of poor display effect when reflection and transmission occur simultaneously is solved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing detailed description is directed to a reflective-transmissive switchable device, a method for manufacturing the same, and a display device provided in an embodiment of the present application, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the foregoing embodiments is only used to help understanding the technical solutions and their core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A reflective-transmissive switchable device comprising
A first transparent electrode and a second transparent electrode; and
a non-polar solvent filled between the first transparent electrode and the second transparent electrode;
the metal core-shell nano particles are dispersed in the nonpolar solvent;
when a positive electric field is applied between the first transparent electrode and the second transparent electrode, the metal core-shell nano particles are gathered on the surface of the first transparent electrode with high electric potential to form a reflecting film layer;
and after the reflecting film layer is formed, when a transient reverse electric field is applied between the first transparent electrode and the second transparent electrode or the positive electric field is removed, the metal core-shell nano particles gathered on the surface of the first transparent electrode are re-dispersed into the nonpolar solvent.
2. The reflective transmissive switchable device of claim 1, wherein the metal core shell nanoparticles are Ag-SiO 2 The core of the metal core-shell nano particle is made of nano silver, the shell layer of the metal core-shell nano particle is made of silicon oxide, and the nonpolar solvent is an oily solvent.
3. The reflective transmissive switchable device of claim 2, wherein the reflective switchable device is more transmissive when the metallic core shell nanoparticles are dispersed in the non-polar solvent, the refractive index of the non-polar solvent being closer to the refractive index of the shell silica.
4. The reflective transmissive switchable device of claim 2, wherein the nanosilver particle size is less than 20nm and the thickness of the shell silica is less than 100nm.
5. A method of manufacturing a reflective-transmissive switchable device according to any of claims 1-4, comprising the steps of:
preparing a first transparent electrode and a second transparent electrode;
preparing a non-polar solvent;
preparing metal core-shell nano particles, and dispersing the metal core-shell nano particles in the nonpolar solvent to form a solution;
filling the solution between the first transparent electrode and the second transparent electrode.
6. The method according to claim 5, wherein the step of preparing the metal core-shell nanoparticles comprises
Preparing nano silver;
putting the nano silver into an ethanol solvent, and stirring;
adding ammonia water into an ethanol solvent, and uniformly mixing;
adding tetraethoxysilane, and centrifugally cleaning to form the metal core-shell nano particles, wherein the core of the metal core-shell nano particles is nano silver, and the shell of the metal core-shell nano particles is silicon oxide.
7. The preparation method according to claim 6, wherein in the step of preparing the nano silver, the silver nitrate is reduced by using sodium citrate and glucose together, and polyvinylpyrrolidone is used as a dispersing agent to obtain uniformly dispersed nano silver.
8. The preparation method according to claim 6, wherein the shell thickness of the metal core-shell nanoparticles is adjusted by adjusting the amount of the tetraethoxysilane, and the larger the amount of the tetraethoxysilane is, the larger the shell thickness of the metal core-shell nanoparticles is.
9. A display device, comprising
A display panel having a display area; and
the reflective transmissive switchable device of any of claims 1-4, attached to a display surface side of the display panel and in the display region.
10. The display device according to claim 9, wherein the second transparent electrode is attached to a display surface side of the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946393.0A CN112068379B (en) | 2020-09-10 | 2020-09-10 | Reflection-transmission switchable device, preparation method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946393.0A CN112068379B (en) | 2020-09-10 | 2020-09-10 | Reflection-transmission switchable device, preparation method thereof and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112068379A CN112068379A (en) | 2020-12-11 |
| CN112068379B true CN112068379B (en) | 2023-01-10 |
Family
ID=73664654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010946393.0A Active CN112068379B (en) | 2020-09-10 | 2020-09-10 | Reflection-transmission switchable device, preparation method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112068379B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6621541B1 (en) * | 1999-09-28 | 2003-09-16 | Lg. Philips Lcd Co., Ltd. | Transflective liquid crystal display device having an electrophoretic display |
| CN1906531A (en) * | 2003-12-17 | 2007-01-31 | 索鲁蒂亚公司 | Polymer sheets and multiple layer glass panels having adjustable tint |
| CN101069930A (en) * | 2007-06-15 | 2007-11-14 | 北京化工大学 | Method for preparing silver/silicon dixoide nucleocapsid structure nano particles |
| CN103217847A (en) * | 2012-01-18 | 2013-07-24 | 广州奥翼电子科技有限公司 | Electrophoresis display particle comprising metal component and preparation method as well as functions thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201118823A (en) * | 2009-11-27 | 2011-06-01 | Univ Nat Taiwan | Transflective display device |
-
2020
- 2020-09-10 CN CN202010946393.0A patent/CN112068379B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6621541B1 (en) * | 1999-09-28 | 2003-09-16 | Lg. Philips Lcd Co., Ltd. | Transflective liquid crystal display device having an electrophoretic display |
| CN1906531A (en) * | 2003-12-17 | 2007-01-31 | 索鲁蒂亚公司 | Polymer sheets and multiple layer glass panels having adjustable tint |
| CN101069930A (en) * | 2007-06-15 | 2007-11-14 | 北京化工大学 | Method for preparing silver/silicon dixoide nucleocapsid structure nano particles |
| CN103217847A (en) * | 2012-01-18 | 2013-07-24 | 广州奥翼电子科技有限公司 | Electrophoresis display particle comprising metal component and preparation method as well as functions thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112068379A (en) | 2020-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002042557A (en) | Transparent conductive substrate and manufacturing method and embrocation for forming transparent coat layer used in the manufacturing method and display device which transparent conductive substrate is applied for | |
| CN103484099B (en) | Color material under regulation and control of electric field, and preparation method of material | |
| JP2017031322A (en) | Heat insulation coating | |
| JP3882419B2 (en) | Coating liquid for forming conductive film and use thereof | |
| CN112068379B (en) | Reflection-transmission switchable device, preparation method thereof and display device | |
| JP2000124662A (en) | Transparent conductive film and display device | |
| WO2003049123A1 (en) | Conductive film, manufacturing method thereof, substrate having the same | |
| JPH10182191A (en) | Transparent electroconductive film and composition for forming the same | |
| CN109983081A (en) | Photoluminescent pigment, the composition containing pigment and the coated-body containing pigment | |
| JPH09115438A (en) | Conductive film, low-reflection conductive film and its forming method | |
| TW420817B (en) | Conductive antireflection film and cathod ray tube | |
| JP3002327B2 (en) | Paint for forming conductive / high refractive index film and transparent material laminate with conductive / high refractive index film | |
| JP2850056B2 (en) | Magnetic display system | |
| KR100785920B1 (en) | Transparent electrically conductive film and display | |
| JP2006032197A (en) | Transparent bilayer film and its manufacturing method | |
| JPH0955175A (en) | Cathode-ray tube with transparent conductive film | |
| JP2865474B2 (en) | Paint for forming antistatic / high refractive index film, transparent material laminate with antistatic / antireflective film, and display device | |
| JPH10182190A (en) | Transparent black electroconducive film | |
| JP3501942B2 (en) | Paint for forming transparent conductive film, transparent conductive film, and display device | |
| JP3449123B2 (en) | Coating solution for forming low-resistance film or low-refractive-index film, and method for producing low-resistance film or low-reflection low-refractive-index film | |
| JP3750461B2 (en) | Transparent conductive layer forming coating liquid, transparent conductive layer and transparent conductive substrate | |
| JPH10188680A (en) | Transparent conductive film | |
| JP4271438B2 (en) | Transparent conductive film forming paint, transparent conductive film, method for producing the same, and display device including the same | |
| JP2002194287A (en) | Coating material for forming transparent electroconductive film and transparent electroconductive film and display | |
| JPH1045427A (en) | Coating liquid for forming dark color transparent conductive film and dark color transparent conductive film formed by using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |