CN113341598B - Flexible electrothermal color-changing display based on paper-aluminum-plastic structure - Google Patents
Flexible electrothermal color-changing display based on paper-aluminum-plastic structure Download PDFInfo
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- CN113341598B CN113341598B CN202110622107.XA CN202110622107A CN113341598B CN 113341598 B CN113341598 B CN 113341598B CN 202110622107 A CN202110622107 A CN 202110622107A CN 113341598 B CN113341598 B CN 113341598B
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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
- G02F1/0147—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laminated Bodies (AREA)
- Resistance Heating (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a flexible electrothermal color-changing display based on a paper-aluminum-plastic structure, which comprises an electrothermal sheet array, a substrate, a thermochromic film, a main control board, a plurality of transverse wires and a plurality of longitudinal wires; wherein the electric heating sheet, the base plate and the longitudinal guide are all prepared from paper aluminum plastic packaging materials. The electrothermal sheet array is positioned on the substrate, and the thermochromic film covers the electrothermal sheet array; the electric heating sheet array is divided into a plurality of rows from top to bottom, each row of electric heating sheets corresponds to one transverse conducting wire, the positive electrode of each row of electric heating sheets is connected with one side of the corresponding transverse conducting wire, and the other side of the transverse conducting wire is connected with the main control board; the electric heating sheet array is divided into a plurality of columns from left to right, wherein each column of electric heating sheets corresponds to one longitudinal wire, the negative electrode of each electric heating sheet in each column of electric heating sheets is connected with one side of the corresponding longitudinal wire, the other side of each longitudinal wire is connected with the main control board, and the display displays images based on thermochromic materials.
Description
Technical Field
The invention relates to a display, in particular to a flexible electrothermal color-changing display based on a paper-aluminum-plastic structure.
Background
The paper aluminum plastic packaging material is formed by compounding three materials of a cellulose paperboard layer, an aluminum foil and a high Polymer (PE), wherein 6 layers are respectively PE, an aluminum foil layer, PE, a cellulose paperboard layer and PE from top to bottom. The paper aluminum plastic package is used for packaging milk, fruit juice and other easily-degraded beverages, and has huge annual output, so the recycling of waste paper aluminum plastic packages piled like mountains every year becomes a great difficulty. The existing paper aluminum plastic recovery modes mainly comprise a separation technology and direct utilization, but the recovery efficiency of the paper aluminum plastic materials by the two modes is low, even larger pollution is probably caused compared with the waste paper aluminum plastic, and other large amounts of unrenewed waste paper aluminum plastic are directly burnt and buried to cause serious environmental pollution. Therefore, a brand new recycling mode for utilizing the waste paper aluminum plastic in an environment-friendly and efficient manner is urgently needed.
On the other hand, commonly used displays can be classified into CRT displays, LCD displays, and LED displays, and can be used to display various information such as graphics, images, animation, video, and the like. However, since the internal structure of these devices is complicated, it is difficult to achieve flexibility and the cost is high. Thermochromic refers to a phenomenon in which the color of a substance changes with the change of the external temperature. The thermochromic polymer has the advantages of easy modification, good stability, low cost, easy preparation, easy processing and the like. Thermochromic behaviour was observed as early as 1871 in HOUSTON. Thermochromic materials have been greatly developed in the past decades and are applied to various fields such as smart windows, color-changing coatings, anti-counterfeit marks, medical thermal imaging diagnostics and the like, however, researches for directly using the thermochromic materials as display screens to display images are very few.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a flexible electrothermal color-changing display based on a paper-aluminum-plastic structure, which is used for displaying images based on thermochromic materials and flexible electric heating sheets.
In order to achieve the purpose, the flexible electrothermal color-changing display based on the paper-aluminum-plastic structure comprises an electrothermal sheet array, a substrate, a thermochromic film, a main control board, a plurality of transverse wires and a plurality of longitudinal wires;
the electrothermal sheet array is positioned on the substrate, and the thermochromic film covers the electrothermal sheet array;
the electric heating sheet array is divided into a plurality of rows from top to bottom, wherein one row of electric heating sheets corresponds to one transverse conducting wire, the positive electrode of each row of electric heating sheets is connected with one side of the corresponding transverse conducting wire, and the other side of the transverse conducting wire is connected with the main control board;
the electric heating sheet array is divided into a plurality of columns from left to right, wherein each column of electric heating sheet corresponds to one longitudinal wire, the negative electrode of the electric heating sheet in each column of electric heating sheet is connected with one side of the corresponding longitudinal wire, and the other side of each longitudinal wire is connected with the main control board.
Diodes are connected in series at the connection parts of the positive poles of the electric heating plates and the corresponding transverse wires.
The base plate, the electric heating sheet and the longitudinal wires are processed and prepared by paper aluminum plastic packaging materials.
The paper-based insulating layer in the paper-aluminum plastic packaging material is used as a substrate.
The electric heating sheet and the longitudinal wires are formed by patterning and processing a conductive aluminum foil layer in a paper aluminum plastic packaging material.
The electric heating sheet is in a roundabout serpentine structure.
When in operation, the main control board controls the voltages on the transverse wires and the longitudinal wires to drive the electric heating plate to work.
When the temperature of any region in the thermochromic film reaches the preset temperature, the color of the region can be changed.
The main control board circularly scans from the first row to the last row of the electric heating sheet array according to a preset bitmap, when a certain row is scanned, the voltages of transverse wires connected with all the electric heating sheets in the row are 5V, the voltages of other transverse wires are 0V, electric heating sheets needing to work in the electric heating sheets in the row are determined according to the bitmap, the voltages of longitudinal wires connected with the electric heating sheets needing to work in the row are set to 0, and the voltages of longitudinal wires connected with other electric heating sheets in the row are set to 5V, so that the area in the thermochromic film facing the electric heating sheets needing to work is discolored, and other areas are not discolored.
The invention has the following beneficial effects:
when the flexible electrothermal color-changing display based on the paper aluminum plastic structure is specifically operated, the thermochromic film is covered on the electrothermal sheet array, the voltages on the transverse wires and the longitudinal wires are controlled through the main control board, so that the voltages of the positive electrodes and the negative electrodes on the electrothermal sheets are accurately controlled, the working state of the electrothermal sheets is controlled, when the electrothermal sheets work, the temperature of the corresponding area in the thermochromic film facing the electrothermal sheets in the working process reaches the preset temperature, the color of the area is changed, and the image display is realized.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein, 1 is a main control board, 2 is a thermochromic film, 3 is a substrate, 4 is an electric heating sheet, 5 is a transverse wire, 6 is a longitudinal wire, and 7 is a diode.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, but not intended to limit the scope of the present disclosure. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
In the accompanying drawings, there is shown a schematic structural diagram in accordance with a disclosed embodiment of the invention. The figures are not drawn to scale, wherein certain details are exaggerated for clarity of presentation and may have been omitted. The shapes of the various regions, layers and their relative sizes, positional relationships shown in the drawings are merely exemplary, may in practice deviate due to manufacturing tolerances or technical limitations, and one skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions as actually required.
Referring to fig. 1, the flexible electrothermal color-changing display based on a paper-aluminum-plastic structure of the invention comprises a main control board 1, a thermochromic film 2, a substrate 3, an electrothermal sheet 4, a transverse wire 5 and a longitudinal wire 6;
the electrothermal sheet array is positioned on the substrate 3, the thermochromic film 2 covers the electrothermal sheet array, the electrothermal sheet array is divided into a plurality of rows from top to bottom, wherein one row of electrothermal sheets 4 corresponds to one transverse conducting wire 5, the positive electrode of the electrothermal sheet 4 in each row of electrothermal sheets 4 is connected with one side of the corresponding transverse conducting wire 5, the connection part of the positive electrode of each electrothermal sheet 4 and the corresponding transverse conducting wire 5 is connected with a diode 7 in series so as to prevent current from flowing reversely, and the other side of the transverse conducting wire 5 is connected with the main control board 1;
the electric heating sheet array is divided into a plurality of columns from left to right, wherein each column of electric heating sheets 4 corresponds to one longitudinal wire 6, the negative electrode of the electric heating sheet 4 in each column of electric heating sheets 4 is connected with one side of the corresponding longitudinal wire 6, and the other side of each longitudinal wire 6 is connected with the main control board 1.
When in operation, the voltage on each transverse wire 5 is controlled by the main control board 1, thereby controlling the operation of the electric heating sheet 4. When the temperature of any area in the thermochromic film 2 reaches the preset temperature, the color of the area changes, the main control board 1 scans from the first row to the last row of the array of the thermochromic film according to the preset bitmap, when a certain row is scanned, the voltages of the transverse wires 5 connected with all the electrothermal sheets 4 in the row are 5V, the voltages of other transverse wires 5 are 0V, the electrothermal sheets 4 in the row need to work according to the bitmap, the voltages of the longitudinal wires 6 connected with the electrothermal sheets 4 needing to work in the row are set to 0, and the voltages of the longitudinal wires 6 connected with the other electrothermal sheets 4 in the row are set to 5V, so that the area in the thermochromic film 2 facing the working electrothermal sheet 4 changes color, and the other areas do not change color.
The base plate 3, the electric heating sheet 4 and the longitudinal wires 6 are processed and prepared by paper aluminum plastic packaging materials, wherein a paper-based insulating layer in the paper aluminum plastic packaging materials is used as the base plate 3, the electric heating sheet 4 and the longitudinal wires 6 are formed by patterning and processing conductive aluminum foil layers in the paper aluminum plastic packaging materials, and the electric heating sheet 4 is processed into a roundabout serpentine structure so as to increase internal resistance, reduce wire partial pressure and change temperature by utilizing the Joule heating effect after being electrified, so that local temperature control is realized.
When the main control board 1 scans a certain row in the electric heating plate array, the voltages of the transverse wires 5 connected with the anodes of the electric heating plates 4 in other rows in the electric heating plate array are all 0V, and when the voltages of the cathodes of the electric heating plates 4 in other rows are 5V, the diode 7 can prevent reverse current from flowing so as to prevent the electric heating plates 4 in other rows from working.
Claims (8)
1. The flexible electrothermal color-changing display based on the paper aluminum plastic structure is characterized by comprising an electrothermal sheet array, a substrate (3), a thermochromic film (2), a main control board (1), a plurality of transverse wires (5) and a plurality of longitudinal wires (6);
the electrothermal sheet array is positioned on the substrate (3), and the thermochromic film (2) covers the electrothermal sheet array;
the electric heating sheet array is divided into a plurality of rows from top to bottom, wherein one row of electric heating sheets (4) corresponds to one transverse conducting wire (5), the positive electrode of each row of electric heating sheets (4) is connected with one side of the corresponding transverse conducting wire (5), and the other side of the transverse conducting wire (5) is connected with the main control board (1);
the electric heating sheet array is divided into a plurality of columns from left to right, wherein each column of electric heating sheets (4) corresponds to one longitudinal wire (6), the negative electrode of each column of electric heating sheets (4) is connected with one side of the corresponding longitudinal wire (6), and the other side of each longitudinal wire (6) is connected with the main control board (1);
the base plate (3), the electric heating sheet (4) and the longitudinal wires (6) are processed and prepared by paper aluminum plastic packaging materials.
2. The flexible electrothermal color-changing display based on the paper-aluminum-plastic structure according to claim 1, wherein diodes (7) are connected in series at the connection positions of the positive poles of the electrothermal sheets (4) and the corresponding transverse wires (5).
3. The flexible electrothermal color change display based on the paper-aluminum-plastic structure according to claim 1, wherein a paper-based insulating layer in the paper-aluminum-plastic packaging material is used as the substrate (3).
4. The flexible electrothermal color-changing display based on the paper-aluminum-plastic structure according to claim 1, wherein the electrothermal sheet (4) and the longitudinal wires (6) are formed by patterning a conductive aluminum foil layer in a paper-aluminum-plastic packaging material.
5. The flexible electrothermal color-changing display based on the paper-aluminum-plastic structure according to claim 1, wherein the electrothermal sheet (4) has a roundabout serpentine structure.
6. The flexible electrothermal color-changing display based on the paper-aluminum-plastic structure according to claim 1, wherein in operation, the voltages on the transverse wires (5) and the longitudinal wires (6) are controlled by the main control board (1) to drive the electrothermal sheet (4) to operate.
7. The flexible electrothermal color-changing display based on the paper-aluminum-plastic structure according to claim 1, wherein the thermochromic film (2) is covered on the electrothermal sheet array when in operation, and when the temperature of any region of the thermochromic film (2) reaches a preset temperature, the color of the region changes.
8. The flexible electrothermal color-changing display based on the paper-aluminum-plastic structure according to claim 1, wherein when in operation, the main control board (1) circularly scans from the first row to the last row of the electrothermal sheet array according to a preset bitmap, when a certain row is scanned, the voltage of the transverse wires (5) connected with all electrothermal sheets (4) in the row is made to be 5V, the voltage of other transverse wires (5) is made to be 0V, the electrothermal sheets (4) needing to be operated in the row of electrothermal sheets (4) are determined according to the bitmap, the voltage of the longitudinal wires (6) connected with the electrothermal sheets (4) needing to be operated in the row is set to be 0, the voltage of the longitudinal wires (6) connected with the other electrothermal sheets (4) in the row is set to be 5V, and the area in the thermochromic film (2) facing the electrothermal sheets (4) needing to be operated is color-changing, and the other areas are not color-changing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110622107.XA CN113341598B (en) | 2021-06-03 | 2021-06-03 | Flexible electrothermal color-changing display based on paper-aluminum-plastic structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110622107.XA CN113341598B (en) | 2021-06-03 | 2021-06-03 | Flexible electrothermal color-changing display based on paper-aluminum-plastic structure |
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| CN113341598A CN113341598A (en) | 2021-09-03 |
| CN113341598B true CN113341598B (en) | 2023-06-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6278430B1 (en) * | 1998-03-06 | 2001-08-21 | Array Printers Ab | Thermosensitive display device |
| KR20080070204A (en) * | 2007-01-25 | 2008-07-30 | 삼성전자주식회사 | Display apparatus using thermochromic material |
| TW201135685A (en) * | 2010-04-01 | 2011-10-16 | Hon Hai Prec Ind Co Ltd | Thermochromatic device and thermochromatic display apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201104652A (en) * | 2009-07-16 | 2011-02-01 | Ind Tech Res Inst | Thermal sensitive image display |
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2021
- 2021-06-03 CN CN202110622107.XA patent/CN113341598B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6278430B1 (en) * | 1998-03-06 | 2001-08-21 | Array Printers Ab | Thermosensitive display device |
| KR20080070204A (en) * | 2007-01-25 | 2008-07-30 | 삼성전자주식회사 | Display apparatus using thermochromic material |
| TW201135685A (en) * | 2010-04-01 | 2011-10-16 | Hon Hai Prec Ind Co Ltd | Thermochromatic device and thermochromatic display apparatus |
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| CN113341598A (en) | 2021-09-03 |
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Inventor after: Fang Huajing Inventor after: Li Chen Inventor after: Yin Haolong Inventor after: Zhao Zhenhua Inventor after: Wang Guangjin Inventor after: Li Weijie Inventor before: Li Chen Inventor before: Yin Haolong Inventor before: Zhao Zhenhua Inventor before: Wang Guangjin Inventor before: Li Weijie Inventor before: Fang Huajing |
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