CN111650798B - Electrochromic transparent umbrella cloth and manufacturing method thereof - Google Patents
Electrochromic transparent umbrella cloth and manufacturing method thereof Download PDFInfo
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- CN111650798B CN111650798B CN202010630775.2A CN202010630775A CN111650798B CN 111650798 B CN111650798 B CN 111650798B CN 202010630775 A CN202010630775 A CN 202010630775A CN 111650798 B CN111650798 B CN 111650798B
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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
- G02F1/15—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 an electrochromic effect
- G02F1/153—Constructional details
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B25/00—Details of umbrellas
- A45B25/18—Covers; Means for fastening same
-
- 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
- G02F1/15—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 an electrochromic effect
- G02F1/1514—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
- G02F1/1516—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising organic material
-
- 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
- G02F1/15—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 an electrochromic effect
- G02F1/153—Constructional details
- G02F1/161—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
-
- 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
- G02F1/15—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 an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
Abstract
The invention relates to the technical field of umbrella cloth, in particular to electrochromic transparent umbrella cloth and a manufacturing method thereof. The umbrella cloth comprises a transparent base cloth layer, an insulating layer, an electric transparent layer, an insulating layer and a waterproof layer which are sequentially arranged, and meanwhile, the umbrella cloth also comprises a turned edge surrounding the edge of the formed umbrella cloth, and the turned edge is an insulating non-woven fabric with a waterproof function. The electrochromic transparent layer is composed of two transparent conductive films and an electrochromic coating film coated between the two transparent conductive films, and the electrochromic coating film contains a sheet material carrying electrons and resin. The sheet materials can generate complicated and disordered arrangement among each other or among resin molecules, thereby being incapable of light rays and effectively playing a role in shading sun. Under the condition of an external electric field, the flaky materials are regularly arranged under the action of the electric field, so that light can penetrate through the electroluminescent transparent layer, and the street lamp can directly illuminate the ground through the umbrella cloth when walking at night.
Description
Technical Field
The invention relates to the technical field of umbrella cloth, in particular to electrochromic transparent umbrella cloth and a manufacturing method thereof.
Background
The umbrella is generally used as a tool for shading sun or rain and snow, and provides convenience for people to go out. Modern people live and go on a journey and have been avoided returning early or late, during the daytime, the umbrella can regard as the instrument that shelters from sleet to use, and when having arrived night, light such as inevitable sunshade street lamp when opening the umbrella for the person that opens the umbrella can't see the road surface clearly, has certain potential safety hazard, has made the umbrella of transparent umbrella cloth in view of this people, and yet transparent umbrella cloth can't play the effect of sunshade when the daytime, makes the person that opens the umbrella need bear dazzling sunshine when the usual daytime, and is comparatively inconvenient.
Disclosure of Invention
The invention provides electrochromic transparent umbrella cloth and a manufacturing method thereof, and aims to solve the problem that the existing umbrella cloth cannot have the functions of shading sun and transmitting light at the same time.
The invention adopts the following technical scheme:
the utility model provides an electrochromic's transparent umbrella cloth, including transparent base cloth layer and waterproof layer, its characterized in that: the transparent base cloth layer is used as a bottom layer, the turned edge is hermetically connected with the bottom plane of the transparent base cloth layer and the top plane of the waterproof layer, and an insulating layer, an electrogenerated transparent layer and an insulating layer are sequentially arranged between the transparent base cloth layer and the waterproof layer from top to bottom; the electrochromic transparent layer is composed of two transparent conductive films and an electrochromic coating coated between the two transparent conductive films, and the electrochromic coating contains a material carrying electrons and resin.
As an improvement of the electrochromic transparent umbrella cloth, a conductive wire is laid in the electrochromic transparent layer and is a metal wire.
As an improvement of the electrochromic transparent umbrella cloth, the turned edge is an insulating non-woven fabric with a waterproof function.
As an improvement of the electrochromic transparent umbrella cloth, the material carrying electrons is montmorillonite with a sheet structure.
A manufacturing method of electrochromic transparent umbrella cloth is characterized in that: the method comprises the following steps:
the method comprises the following steps:
A. preparing PVC plastic cloth as a transparent base cloth layer, preparing a PVC plastic film as a waterproof layer, preparing strip-shaped insulating non-woven fabric as a turned edge, and preparing a transparent conductive film, wherein the thicknesses of the PVC plastic cloth, the PVC plastic film and the transparent conductive film are less than 0.05 mm;
B. manufacturing an electric transparent layer: taking the flaky material subjected to surface charge coating treatment, acrylic resin, a photoinitiator and transparent color pigment, and performing ultrasonic dispersion treatment to obtain a coating; coating the obtained coating between two layers of conductive transparent films to obtain the electroluminescent transparent layer, wherein the coating thickness of the obtained coating is 0.15-0.2 mm;
C. manufacturing an insulating layer: mixing polyvinyl chloride, a transparent calcium-zinc stabilizer, a whitening agent and a yellow removing agent, heating to melt, and rolling to form a film with the thickness of less than 0.05 mm;
step two:
integrating the transparent base cloth layer, the waterproof layer and the turned edge prepared in the step one and the electroluminescent transparent layer and the insulating layer prepared in the step one, sequentially arranging the transparent base cloth layer, the insulating layer, the electroluminescent transparent layer insulating layer and the waterproof layer from bottom to top, and forming an integral cloth through hot pressing;
step three:
blanking the cloth formed by the hot pressing in the step two to form a required umbrella cloth shape, and simultaneously blanking the center of the blanked umbrella cloth to form a through hole;
step four:
and (3) cutting the prepared turned edges into two pieces, wherein one piece is consistent with the length of the outer contour of the umbrella cloth, and the other piece is consistent with the perimeter of the through hole, paving the two cut turned edges and coating a sealant, fixing the two turned edges along the edge of the outer contour of the umbrella cloth and attaching the two turned edges along the edge of the through hole respectively, and enabling the turned edges to cover the top surface of the waterproof layer and the bottom surface of the transparent base cloth layer respectively after attaching, so that the electrochromic umbrella cloth capable of being mounted on the umbrella ribs is obtained.
As an improvement of the above-mentioned method for manufacturing the transparent umbrella cloth, in the step one of manufacturing the electrochromic transparent layer, before the prepared coating is coated on two layers of transparent conductive films, firstly coating an electrochromic coating film on one layer of transparent conductive film, then laying a plurality of conductive wires, and then covering another transparent conductive film on the electrochromic coating film, thus obtaining the electrochromic transparent layer.
And as an improvement of the manufacturing method of the transparent umbrella cloth, after the turned edges in the step four are attached, the turned edges are fixed on the umbrella cloth in a sewing mode.
As an improvement of the above method for manufacturing the transparent umbrella cloth, before the fourth step, a conductive wire is connected to the through hole punched in the third step by welding, and the conductive wire is electrically connected to the electro-transparent layer.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the electroluminescent transparent layer in the umbrella cloth comprises the sheet materials carrying electrons and resin, and the sheet materials or resin molecules can be arranged in a complicated and disordered way, so that light cannot be transmitted, the whole umbrella cloth is opaque, and the light cannot be transmitted, thereby effectively playing a role in shading sun and avoiding dazzling of the sun. Under the condition of an external electric field, the flaky materials are regularly arranged under the action of the electric field, so that light can penetrate through the electric transparent layer to make the umbrella cloth transparent, and the street lamp can directly illuminate the ground through the umbrella cloth when walking at night.
Drawings
Fig. 1 is a schematic structural view of the umbrella cloth of the invention.
Fig. 2 is a schematic top view of the umbrella cloth of the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in the attached figure 1, the transparent electrochromic umbrella cloth comprises a transparent base cloth layer 1, an insulating layer 4, an electrochromic transparent layer 3, an insulating layer 4 and a waterproof layer 2 which are sequentially arranged, wherein during production, adhesive can be adhered between adjacent layers, and the layers are subjected to hot pressing to form an integral cloth. Meanwhile, the umbrella cloth also comprises a turned edge 5 surrounding the edge of the formed umbrella cloth, the turned edge 5 is made of an insulating material, preferably an insulating non-woven fabric with a waterproof effect, after the umbrella cloth is punched and formed, the turned edge 5 and the upper plane and the lower plane of the umbrella cloth (namely the bottom plane of the transparent base cloth layer 1 and the top plane of the waterproof layer 2) are coated with sealant and then fixed to the edge of the formed umbrella cloth in a sewing mode, and the insulating sealing of the edge of the umbrella cloth is realized.
The transparent base cloth layer 1 is transparent PVC plastic cloth, and the insulating layer 4 is a transparent PVC insulating film. The electrochromic transparent layer 3 comprises two conductive transparent films 31 and an electrochromic coating 32 coated between the two conductive transparent films 31, wherein the electrochromic coating 32 is a coating formed by coating a coating prepared by performing ultrasonic treatment on a montmorillonite material subjected to surface charge coating treatment, acrylic resin, a photoinitiator and a transparent color pigment. Before the electrochromic coating 32 is coated on the two transparent conductive films 31, the conductive wires 13 are embedded in one transparent conductive film 31, then the electrochromic coating 32 is coated, and then the other transparent conductive film 31 covers the electrochromic coating 31, so that the electrochromic transparent layer 3 is obtained, wherein the montmorillonite material and the acrylic resin respectively comprise a sheet and a resin which carry electrons in the electrochromic transparent layer 3.
Because the surface of the montmorillonite sheet is charged, intricate and complicated disordered arrangements can be generated among each other or among resin molecules, and therefore, light cannot be penetrated, the whole umbrella cloth is not transparent, the light cannot penetrate through the umbrella cloth, and the effect of shading sun can be effectively achieved. And under the external voltage condition, take the montmorillonite sheet to carry out regular sequence arrangement under the electric field effect to make light can see through the coating, thereby realize controlling the transparency degree of umbrella cloth, so, can realize through circular telegram and outage that umbrella cloth adjusts between transparent and opaque.
The manufacturing method of the electrochromic transparent umbrella cloth comprises the following steps:
the method comprises the following steps:
A. preparing PVC plastic cloth as a transparent base cloth layer, a PVC plastic film as a waterproof layer, strip-shaped insulating non-woven fabric as a turned edge and a transparent conductive film 31, wherein the PVC plastic cloth, the PVC plastic film and the transparent conductive film 31 are all made of transparent materials and have thicknesses less than 0.05 mm;
B. fabrication of the electro-transparent layer 3: carrying out ultrasonic dispersion treatment on a flaky material subjected to surface charge coating treatment, acrylic resin, a photoinitiator and a transparent color pigment to prepare a coating, wherein the flaky material is a montmorillonite sheet; coating the prepared coating on one layer of transparent conductive film, wherein the electrochromic coating 32 is formed by the coated coating, the electrochromic coating 32 can be coated in an ultrasonic spraying mode, the coating thickness is controlled to be 0.15-0.2 mm, then another transparent conductive film is covered on the electrochromic coating 31, and the electrochromic transparent layer 3 is obtained, furthermore, a plurality of conducting wires can be laid on the electrochromic coating 32 after the electrochromic coating is coated, and then another transparent conductive film 32 is covered on the electrochromic coating 31, so that the conduction of current can be accelerated through the laid conducting wires, and the reaction of the electrochromic transparent layer 3 is accelerated;
C. manufacturing of the insulating layer 4: polyvinyl chloride, a transparent calcium zinc stabilizer, a whitening agent and a yellowing inhibitor are mixed and heated to be molten, a film with the thickness of less than 0.05mm is formed after rolling, the polyvinyl chloride can play an insulating role through the characteristics of the polyvinyl chloride, the transparency of the polyvinyl chloride can be stabilized by the added transparent calcium zinc stabilizer to prevent the polyvinyl chloride from yellowing, and the clustered grey powder is added as the yellowing inhibitor for yellowing, so that a finished product prepared by the insulating layer 4 has better transparency;
step two:
integrating the transparent base cloth layer 1, the waterproof layer 2 and the turned edge 5 prepared in the step one, and the electroluminescent transparent layer 3 and the insulating layer 4 prepared in the step one, sequentially arranging the transparent base cloth layer 1, the insulating layer 4, the electroluminescent transparent layer 3, the insulating layer 4 and the waterproof layer 2 from bottom to top, and forming an integrated cloth through hot pressing, wherein the thickness of the cloth can be controlled to be less than 0.5mm under the condition that the thicknesses of the layers are properly controlled, so that the flexibility of the cloth is ensured, and the cloth is convenient to fold or unfold;
step three:
the cloth formed by the hot pressing in the step two is punched to form a required umbrella cloth shape, and meanwhile, the center of the punched umbrella cloth is punched to form a through hole which can be specifically placed on punching equipment and formed by one-time punching by using a cutting die, wherein the through hole is used for being penetrated and arranged at the top end of the umbrella handle and is convenient for being fixedly connected with an umbrella nest at the top of the umbrella handle;
step four:
a conductive wire is connected to the position of the through hole 6 formed by blanking in the step three in a welding mode, the conductive wire is electrically connected with the electroluminescent transparent layer 3, and the conductive wire can be conveniently connected with power supply equipment in the following process, specifically, an electric storage device fixed in an umbrella handle or a handle is electrically connected, so that the power-on and power-off of the electroluminescent transparent layer 3 are conveniently realized;
step five:
cutting the prepared turned edges 5 into two pieces, wherein one piece is consistent with the length of the outer contour of the umbrella cloth, and the other piece is consistent with the circumference of the through hole, paving and coating the two cut turned edges 5 with sealant, fixing the two turned edges 5 along the edge of the outer contour of the umbrella cloth and attaching the two turned edges 5 along the edge of the through hole respectively, enabling the turned edges 5 to cover the top surface of the waterproof layer 2 and the bottom surface of the transparent base cloth layer 2 respectively after attaching, and then fixing the turned edges on the umbrella cloth in a sewing mode to obtain the electrochromic umbrella cloth capable of being installed on the umbrella ribs.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (8)
1. The utility model provides an electrochromic's transparent umbrella cloth, including transparent base cloth layer and waterproof layer, its characterized in that: the transparent base cloth layer is used as a bottom layer, the turned edge is hermetically connected with the bottom plane of the transparent base cloth layer and the top plane of the waterproof layer, and an insulating layer, an electrogenerated transparent layer and an insulating layer are sequentially arranged between the transparent base cloth layer and the waterproof layer from top to bottom; the electrochromic transparent layer is composed of two transparent conductive films and an electrochromic coating coated between the two transparent conductive films, and the electrochromic coating contains a material carrying electrons and resin.
2. An electrochromic transparent umbrella fabric as claimed in claim 1, wherein: and a conductive wire is laid in the electric transparent layer and is a metal wire.
3. An electrochromic transparent umbrella fabric as claimed in claim 1, wherein: the curled edge is an insulating non-woven fabric with a waterproof function.
4. An electrochromic transparent umbrella fabric as claimed in claim 1, wherein: the material carrying electrons is montmorillonite with a sheet structure.
5. A manufacturing method of electrochromic transparent umbrella cloth is characterized in that:
the method comprises the following steps:
A. preparing PVC plastic cloth as a transparent base cloth layer, a PVC plastic film as a waterproof layer, strip-shaped insulating non-woven fabric as a turned edge and a transparent conductive film, wherein the thicknesses of the PVC plastic cloth, the PVC plastic film and the transparent conductive film are less than 0.05 mm;
B. manufacturing an electric transparent layer: taking the flaky material subjected to surface charge coating treatment, acrylic resin, a photoinitiator and transparent color pigment, and performing ultrasonic dispersion treatment to obtain a coating; coating the obtained coating between two layers of conductive transparent films to obtain the electroluminescent transparent layer, wherein the coating thickness of the obtained coating is 0.15-0.2 mm;
C. manufacturing an insulating layer: mixing polyvinyl chloride, a transparent calcium-zinc stabilizer, a whitening agent and a yellow removing agent, heating to melt, and rolling to form a film with the thickness of less than 0.05 mm;
step two:
integrating the transparent base cloth layer, the waterproof layer and the turned edge prepared in the step one and the electroluminescent transparent layer and the insulating layer prepared in the step one, sequentially arranging the transparent base cloth layer, the insulating layer, the electroluminescent transparent layer insulating layer and the waterproof layer from bottom to top, and forming an integral cloth through hot pressing;
step three:
blanking the cloth formed by the hot pressing in the step two to form a required umbrella cloth shape, and simultaneously blanking the center of the blanked umbrella cloth to form a through hole;
step four:
and (3) cutting the prepared turned edges into two pieces, wherein one piece is consistent with the length of the outer contour of the umbrella cloth, and the other piece is consistent with the perimeter of the through hole, paving the two cut turned edges and coating a sealant, fixing the two turned edges along the edge of the outer contour of the umbrella cloth and attaching the two turned edges along the edge of the through hole respectively, and enabling the turned edges to cover the top surface of the waterproof layer and the bottom surface of the transparent base cloth layer respectively after attaching, so that the electrochromic umbrella cloth capable of being mounted on the umbrella ribs is obtained.
6. The method for manufacturing the electrochromic transparent umbrella cloth according to claim 5, wherein the method comprises the following steps: in the step one, before the prepared coating is coated on two layers of transparent conductive films, an electrochromic coating film is coated on one layer of transparent conductive film, then a plurality of conductive wires are laid, and then the other transparent conductive film is covered on the electrochromic coating film, so that the electrochromic transparent layer is obtained.
7. The method for manufacturing the electrochromic transparent umbrella cloth according to claim 5, wherein the method comprises the following steps: and after the turned edges in the step four are attached, fixing the turned edges on the umbrella cloth in a sewing mode.
8. The method for manufacturing the electrochromic transparent umbrella cloth according to claim 5, wherein the method comprises the following steps: before the fourth step, a conductive wire is connected to the through hole punched in the third step in a welding manner, and the conductive wire is electrically connected with the electroluminescent transparent layer.
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| CN202010630775.2A CN111650798B (en) | 2020-07-03 | 2020-07-03 | Electrochromic transparent umbrella cloth and manufacturing method thereof |
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| CN202010630775.2A CN111650798B (en) | 2020-07-03 | 2020-07-03 | Electrochromic transparent umbrella cloth and manufacturing method thereof |
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| CN111650798B true CN111650798B (en) | 2022-09-23 |
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| JP2010207503A (en) * | 2009-03-12 | 2010-09-24 | Riso Kagaku Corp | Umbrella and luminous sheet |
| CN206238631U (en) * | 2016-05-13 | 2017-06-13 | 杭州杜易科技有限公司 | A kind of solar energy electrochromism umbrella |
| CN108185604A (en) * | 2017-12-28 | 2018-06-22 | 泉州迪特工业产品设计有限公司 | A kind of changeable colour umbrella and umbrella cloth manufacturing method |
| CN108681171A (en) * | 2018-05-23 | 2018-10-19 | 广州奥翼电子科技股份有限公司 | Optical element, display device and electronic equipment |
| CN208156382U (en) * | 2018-01-18 | 2018-11-27 | 上海洞舟实业有限公司 | It is a kind of to meet the luminous display device of water |
| CN111317236A (en) * | 2020-04-17 | 2020-06-23 | 武汉轻工大学 | Adjustable color-changing umbrella |
-
2020
- 2020-07-03 CN CN202010630775.2A patent/CN111650798B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010207503A (en) * | 2009-03-12 | 2010-09-24 | Riso Kagaku Corp | Umbrella and luminous sheet |
| CN206238631U (en) * | 2016-05-13 | 2017-06-13 | 杭州杜易科技有限公司 | A kind of solar energy electrochromism umbrella |
| CN108185604A (en) * | 2017-12-28 | 2018-06-22 | 泉州迪特工业产品设计有限公司 | A kind of changeable colour umbrella and umbrella cloth manufacturing method |
| CN208156382U (en) * | 2018-01-18 | 2018-11-27 | 上海洞舟实业有限公司 | It is a kind of to meet the luminous display device of water |
| CN108681171A (en) * | 2018-05-23 | 2018-10-19 | 广州奥翼电子科技股份有限公司 | Optical element, display device and electronic equipment |
| CN111317236A (en) * | 2020-04-17 | 2020-06-23 | 武汉轻工大学 | Adjustable color-changing umbrella |
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