CN108919529A - A kind of cover board and preparation method thereof, display panel and display device - Google Patents
A kind of cover board and preparation method thereof, display panel and display device Download PDFInfo
- Publication number
- CN108919529A CN108919529A CN201810846940.0A CN201810846940A CN108919529A CN 108919529 A CN108919529 A CN 108919529A CN 201810846940 A CN201810846940 A CN 201810846940A CN 108919529 A CN108919529 A CN 108919529A
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- Prior art keywords
- liquid crystal
- cover board
- film layer
- magnetic material
- crystal coatings
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- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/132—Thermal activation of liquid crystals exhibiting a thermo-optic effect
-
- 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
- G02F1/0147—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 thermo-optic effects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
Abstract
The present invention relates to field of display technology, a kind of cover board and preparation method thereof, display panel and display device are disclosed, wherein cover board includes：Transparent substrate, including viewing area and around the rim area of viewing area setting；Liquid crystal coatings are located on the transparent substrate, are arranged along the rim area, the liquid crystal coatings include cholesteric liquid crystal.Above-mentioned cover board, when ambient temperature changes, with temperature color change can occur for the rim area of cover board, not only have the function of temperature monitoring and prompt, can also form the magnificent appearance of colorful, have apparent competitive advantage.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of cover board and preparation method thereof, display panel and display dress
It sets.
Background technique
Currently, the electronic products such as mobile phone, plate have been increasingly becoming daily necessities, people's function more for this kind of product
It can be higher and higher with the requirement of diversification.Therefore, a electronic product with temp monitoring function is obviously able to ascend user
Experience is easier to obtain the close Lay of people.
Summary of the invention
The invention discloses a kind of cover board and preparation method thereof, display panel and display devices, it is therefore an objective to provide a kind of tool
There is the mobile electronic product of temperature-monitoring function.
In order to achieve the above objectives, the present invention provides following technical scheme：
A kind of cover board, including：
Transparent substrate, including viewing area and around the rim area of viewing area setting；
Liquid crystal coatings are located on the transparent substrate, are arranged along the rim area, the liquid crystal coatings include cholesteric phase liquid
It is brilliant.
Above-mentioned cover board is equipped with liquid crystal coatings in the rim area of transparent substrate, includes cholesteric liquid crystal in liquid crystal coatings.Cholesteric
Phase liquid crystal molecule is in stratiform helical structure, and screw pitch can change with temperature, can be with so as to cause the selective reflecting to wavelength
Show different colors, i.e., cholesteric liquid crystal has thermochromatic effect, and the effect has invertibity；Specifically, with temperature
It increases, the color of cholesteric liquid crystal can be changed by red, orange, yellow, green, blue, indigo, the sequence of purple, and temperature decline again can be by opposite
Sequence changes colour, high sensitivity, and spectral range is wide.Therefore, when ambient temperature changes, the rim area of cover board can be with temperature
Color change occurs for degree, not only has the function of temperature monitoring and prompt, can also form the magnificent appearance of colorful, have
Apparent competitive advantage.
In a kind of optional embodiment, the liquid crystal coatings further include nematic liquid crystal.
In a kind of optional embodiment, the liquid crystal in the liquid crystal coatings is microencapsulation structure.
In a kind of optional embodiment, the cover board further includes the magnetic material film layer on the transparent substrate.
In a kind of optional embodiment, the magnetic material film layer is transparent film layer, and the magnetic material film layer is at least
Cover the rim area.
In a kind of optional embodiment, the magnetic material film layer is located at the liquid crystal coatings away from the transparent substrate
Side.
In a kind of optional embodiment, the magnetic material film layer is mixed by nano-scale magnetic metallic particles and megohmite insulant
It forms.
In a kind of optional embodiment, the magnetic material film layer by nano-level iron cobalt alloy particle and aluminum fluoride mixing and
At.
In a kind of optional embodiment, the cover board further includes being located at the liquid crystal coatings away from the transparent substrate side
Ink layer and film plating layer.
A kind of display panel, including cover board described in any of the above-described technical solution.
A kind of display device, including display panel described in above-mentioned technical proposal.
A kind of preparation method of cover board, including：
Liquid crystal coatings are formed on substrate, the liquid crystal coatings are arranged along the rim area of the substrate, and the liquid crystal film
Layer includes cholesteric liquid crystal；
Magnetic material film layer is formed on the liquid crystal coatings；
Ink layer is formed in the magnetic material film layer, the ink layer is arranged along the rim area of the substrate；
Film plating layer is formed on the ink layer.
Detailed description of the invention
Fig. 1 is a kind of configuration schematic diagram of cover board provided in an embodiment of the present invention；
Fig. 2 is a kind of preparation method flow chart of cover board provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the invention provides a kind of cover boards, including：
Transparent substrate 1, the transparent substrate 1 include viewing area A and the rim area B around viewing area A setting；
Liquid crystal coatings 2 are located on transparent substrate 1, and are arranged along the rim area B of transparent substrate 1, which includes
Cholesteric liquid crystal.
Above-mentioned cover board is equipped with liquid crystal coatings 2 in the rim area B of transparent substrate 1, includes cholesteric liquid crystal in liquid crystal coatings 2.
Cholesteric liquid crystal molecule is in stratiform helical structure, and screw pitch can change with temperature, so as to cause the selective reflecting to wavelength,
It can show different colors, i.e., cholesteric liquid crystal has thermochromatic effect, and the effect has invertibity；Specifically, with temperature
The color of the raising of degree, cholesteric liquid crystal can be changed by red, orange, yellow, green, blue, indigo, the sequence of purple, and temperature decline can press again
Reverse order discoloration, high sensitivity, and spectral range is wide.Therefore, when ambient temperature changes, the rim area B of cover board can
Color change occurs with temperature, not only have the function of temperature monitoring and prompt, the magnificent appearance effect of colorful can also be formed
Fruit has apparent competitive advantage.
As shown in Figure 1, in a kind of specific embodiment, in order to make the thermochromatic effect temperature range and environment of liquid crystal coatings 2
Temperature more matches, the sensitiveer or color that develops the color is more bright-coloured, can press definite composition tune using several cholesteric liquid crystals
It is equipped with to form hybrid type liquid crystal film layer 2.
Unique helical structure of cholesteric liquid crystal determines its special optical property, such as selective reflecting, circular dichroism
Deng；When the wavelength (λ o) of incident light and the screw pitch (P) of cholesteric liquid crystal match, i.e. when λ o=n × p, (n is cholesteric liquid crystal
Mean refractive index), then light is reflected, and reflected light is circularly polarized light, the direction of rotation of circularly polarized light and the spiral of cholesteric liquid crystal
Structure is consistent, changes the refractive index n and pitch P of cholesteric liquid crystal, it can adjust the wavelength of its reflected light.In turn, by more
Mixed liquid crystal film layer made of kind cholesteric liquid crystal allotment, the temperature range and spectral range of thermochromatic effect can be wider, show
Color can be sensitiveer, and color can be more gorgeous.
In a kind of specific embodiment, liquid crystal coatings 2 further include nematic liquid crystal.
By adding nematic liquid crystal, liquid crystal coatings 2 can be made to change linearly in spectral range, for example, by adding
Add a small amount of nematic crystal that can expand the red region of variation to green, to promote color changeable effect, so that more conducively temperature becomes
The observation of change.
In a kind of specific embodiment, the liquid crystal in liquid crystal coatings 2 is microencapsulation structure.Microcapsules refer to that one kind has
The miniature vessel or packing material of polymer wall.Liquid crystal is exactly embedded, is sealed up for safekeeping in a kind of microencapsulation as one by microencapsulation
Kind solia particle product.
Microcapsules have wall thin, and the features such as colour developing, liquid crystal is vulnerable to ultraviolet light and environmental pollution, by sealing liquid crystal in micro- glue
In capsule, its performance reliability can be effectively promoted, to promote the service life of cover board.
Optionally, the diameter of microcapsules can be 5 μm -15 μm.
As shown in Figure 1, cover board provided in an embodiment of the present invention can also include positioned at transparent in a kind of specific embodiment
Magnetic material film layer 3 on substrate 1.
Magnetic material has magnetothermal effect, and when the external world is without magnetic fields, the magnetic moment inside magnetic material presents a kind of miscellaneous
Disorderly unordered state, the whole magnetic entropy value of magnetic material is big, and when magnetic field occurs in the external world, the magnetic moment of magnetic material can be in extraneous magnetic
Change under the action of, gradually become and be parallel to magnetic field, orderly state, magnetic entropy value at this time reduces, which can be to
Heat release in environment, and then ambient temperature is caused to increase.
Specifically, the power of external magnetic field will affect the magnetic changes of entropy of magnetic material film layer 3, and then lead to ambient temperature
Variation, with the temperature change color change can occur for liquid crystal coatings 2, to play the role of monitoring and prompt surrounding magnetic field.
Since the magnetothermal effect of magnetic material and the thermochromatic effect of liquid crystal all have invertibity, so the monitoring function can recycle.
Optionally, magnetic material film layer 3 can be transparent film layer.
Further alternative, magnetic material film layer 3 at least covers the rim area of substrate 1, that is, can be only along the side of substrate 1
Frame area B setting, or the flood structure of covering substrate 1.
Specifically, magnetic material film layer 3 is located at the side that liquid crystal coatings 2 deviate from transparent substrate 1.
In a kind of specific embodiment, magnetic material film layer 3 can be mixed by nano-scale magnetic metallic particles and megohmite insulant
It closes.
Optionally, magnetic material film layer 3 is mixed by nano-level iron cobalt alloy particle and aluminum fluoride.
As shown in Figure 1, cover board provided in an embodiment of the present invention further includes being located at liquid crystal coatings in a kind of specific embodiment
2 deviate from the ink layer 4 and film plating layer 5 of 1 side of transparent substrate.
Specifically, ink layer 4 can set for random colors, the ink layers 4 such as white, black along the rim area B of substrate 1
It sets；Further, film plating layer 5 is transparent film layer, which is the flood film layer for covering substrate 1.
Optionally, magnetic material film layer 3 is between liquid crystal coatings 2 and ink layer 4.
In addition, the display panel includes in any of the above-described embodiment the embodiment of the invention also provides a kind of display panel
Cover board.
The embodiment of the invention also provides a kind of display device, which includes above-mentioned display panel.
Specifically, the display device can be the portable mobile electronic device such as mobile phone, plate, specifically, directly
Show that the appearance of cover board can judge the variation in ambient temperature and magnetic field by observing the electronic equipment, it is strong so as to realize
The function of health monitoring.
As depicted in figs. 1 and 2, cover board based on the embodiment of the present invention, the embodiment of the invention also provides a kind of lids
The preparation method of plate, the preparation method may comprise steps of：
Step S101, forms liquid crystal coatings 2 on substrate 1, which is arranged along the rim area B of substrate 1；
Step S102 forms magnetic material film layer 3 on liquid crystal coatings 2；
Step S103, forms ink layer 4 in magnetic material film layer 3, which is arranged along the rim area B of substrate 1；
Step S104 forms film plating layer 5 on ink layer 4.
In a kind of specific embodiment, liquid crystal coatings 2 are formed on substrate 1, specifically include following below scheme：By cholesteric phase liquid
It is brilliant to be mixed with nematic liquid crystal according to setting proportion, mixed liquid crystal is prepared into microcapsule structure, microcapsule structure is mixed
Adhesive is closed, is then coated on substrate 1.
Optionally, magnetic material film layer 3 can be formed using screen printing technique.Specifically, magnetic material film layer 3 can be with
For transparent film layer；Further, magnetic material film layer 3 can be the flood structure of covering substrate 1, can also be only along substrate 1
Rim area B setting.
Optionally, ink layer 4 can be black, white or any other color, can specifically use screen printing technique
It is formed；The ink layer 4 is arranged along the rim area B of substrate 1.Further, film plating layer 5 is transparent film layer, which is covering
The flood film layer of substrate 1.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
Bright spirit and scope.In this way, if these modifications and changes of the present invention belongs to the claims in the present invention and its equivalent technologies
Within the scope of, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of cover board, which is characterized in that including：
Transparent substrate, including viewing area and around the rim area of viewing area setting；
Liquid crystal coatings are located on the transparent substrate, are arranged along the rim area, the liquid crystal coatings include cholesteric liquid crystal.
2. cover board according to claim 1, which is characterized in that the liquid crystal coatings further include nematic liquid crystal.
3. cover board according to claim 1, which is characterized in that the liquid crystal in the liquid crystal coatings is microencapsulation structure.
4. cover board according to claim 1-3, which is characterized in that further include the magnetic on the transparent substrate
Property film layer.
5. cover board according to claim 4, which is characterized in that the magnetic material film layer is transparent film layer, and the magnetic
Property film layer at least covers the rim area.
6. cover board according to claim 4, which is characterized in that the magnetic material film layer is located at the liquid crystal coatings and deviates from
The side of the transparent substrate.
7. cover board according to claim 4, which is characterized in that the magnetic material film layer is by nano-scale magnetic metallic particles
It is mixed with megohmite insulant.
8. cover board according to claim 7, which is characterized in that the magnetic material film layer is by nano-level iron cobalt alloy particle
It is mixed with aluminum fluoride.
9. cover board according to claim 1-3, which is characterized in that further include being located at the liquid crystal coatings away from institute
State the ink layer and film plating layer of transparent substrate side.
10. a kind of display panel, which is characterized in that including such as described in any item cover boards of claim 1-9.
11. a kind of display device, which is characterized in that including display panel as claimed in claim 10.
12. a kind of preparation method of cover board, which is characterized in that including：
Liquid crystal coatings are formed on substrate, the liquid crystal coatings are arranged along the rim area of the substrate, and the liquid crystal coatings packet
Include cholesteric liquid crystal；
Magnetic material film layer is formed on the liquid crystal coatings；
Ink layer is formed in the magnetic material film layer, the ink layer is arranged along the rim area of the substrate；
Film plating layer is formed on the ink layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846940.0A CN108919529B (en) | 2018-07-27 | 2018-07-27 | Cover plate and preparation method thereof, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846940.0A CN108919529B (en) | 2018-07-27 | 2018-07-27 | Cover plate and preparation method thereof, display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108919529A true CN108919529A (en) | 2018-11-30 |
| CN108919529B CN108919529B (en) | 2022-01-11 |
Family
ID=64418874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810846940.0A Active CN108919529B (en) | 2018-07-27 | 2018-07-27 | Cover plate and preparation method thereof, display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108919529B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721166A (en) * | 2022-04-26 | 2022-07-08 | 东南大学 | Contact lens containing thermochromic cholesteric liquid crystal material and preparation method thereof |
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| CN105885722A (en) * | 2016-06-24 | 2016-08-24 | 京东方科技集团股份有限公司 | Frame sealant, preparation method thereof, display panel and display device |
| CN105957444A (en) * | 2016-06-15 | 2016-09-21 | 苏州众显电子科技有限公司 | Allochroic liquid crystal label |
| CN107204523A (en) * | 2016-03-18 | 2017-09-26 | 广州光宝移动电子部件有限公司 | Wireloop antenna and the mobile device with wireloop antenna |
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2018
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258985A (en) * | 1998-12-30 | 2000-07-05 | 诺基亚流动电话有限公司 | Electronic device, shell of electronic device and method for producing shell of electronic device |
| CN2766464Y (en) * | 2004-12-13 | 2006-03-22 | 乐金电子(中国)研究开发中心有限公司 | Mobile phone fixed color-changing panel |
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| CN107204523A (en) * | 2016-03-18 | 2017-09-26 | 广州光宝移动电子部件有限公司 | Wireloop antenna and the mobile device with wireloop antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721166A (en) * | 2022-04-26 | 2022-07-08 | 东南大学 | Contact lens containing thermochromic cholesteric liquid crystal material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108919529B (en) | 2022-01-11 |
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