CN220913653U - Credit card with printed electrochromic display - Google Patents
Credit card with printed electrochromic display Download PDFInfo
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- CN220913653U CN220913653U CN202322738311.5U CN202322738311U CN220913653U CN 220913653 U CN220913653 U CN 220913653U CN 202322738311 U CN202322738311 U CN 202322738311U CN 220913653 U CN220913653 U CN 220913653U
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- layer
- screen
- credit card
- electrochromic
- electrochromic display
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- 239000000758 substrate Substances 0.000 claims description 36
- 239000003792 electrolyte Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 98
- 238000000034 method Methods 0.000 description 5
- 238000007639 printing Methods 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 238000007641 inkjet printing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000144 PEDOT:PSS Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model relates to a credit card with electrochromic display, which comprises a front plate, a rear plate, an electrochromic display screen and an NFC module, wherein the electrochromic display screen is arranged between the front plate and the rear plate, the NFC module is arranged on the electrochromic display screen, and the NFC module is electrically connected with the electrochromic display screen. The information of the cardholder of the credit card is displayed through the electrochromic display screen after the password is input, and when the credit card is lost or stolen, other people cannot easily acquire the information of the credit card, so that the possibility of swiping the card by theft is greatly reduced, the safety is improved, and the benefit loss of the cardholder is avoided.
Description
Technical Field
The utility model relates to the field of electrochromic, in particular to a credit card with a printed electrochromic display.
Background
Credit cards have all or part of the functions of payment, credit, settlement, cash access, etc. But the card number, card expiration date, cardholder name and credit card security code of the credit cards currently in the market are displayed directly on the card, and the above information is visible to anyone. When the credit card is lost or stolen, the thief can easily consume the credit card without inputting a password, which greatly damages the benefit of a cardholder and greatly influences the security of the credit card.
Disclosure of Invention
The utility model provides a credit card with a printed electrochromic display, which aims to solve the problem that the credit card is easy to leak cardholder information.
The utility model provides a credit card with electrochromic display, which comprises a front plate, a rear plate, an electrochromic display screen and an NFC module, wherein the electrochromic display screen is arranged between the front plate and the rear plate, the NFC module is arranged on the electrochromic display screen, and the NFC module is electrically connected with the electrochromic display screen.
As a further improvement of the utility model, the NFC module includes an NFC antenna and an NFC chip, where the NFC antenna is disposed on the electrochromic display screen, the NFC chip is bound above the NFC antenna, and the NFC antenna is electrically connected with the NFC chip.
As a further improvement of the utility model, the NFC chip is electrically connected with the electrochromic display screen, and the NFC chip is in inductive communication with external NFC equipment.
As a further improvement of the utility model, the front panel is provided with a front display window for displaying credit card information.
As a further improvement of the utility model, the back plate is provided with a back display window for displaying credit card information.
As a further improvement of the utility model, the electrochromic display screen comprises an upper color-changing screen and a lower color-changing screen, wherein the top of the upper color-changing screen is attached to the front plate, the bottom of the lower color-changing screen is attached to the rear plate, and the bottom of the upper color-changing screen is attached to the top of the lower color-changing screen.
As a further improvement of the utility model, the upper color-changing screen comprises a first substrate layer, an upper electrode layer, a first electrolyte layer, a first pattern layer, a first electrochromic layer and a second substrate layer, wherein the upper electrode layer is printed on the top of the first substrate layer through a screen, the first electrolyte layer is printed on the top of the upper electrode layer through a screen, the first electrochromic layer is printed on the bottom of the second substrate layer through a screen, the first pattern layer is printed on the bottom of the first electrochromic layer through a screen, and the first pattern layer is attached to the first electrolyte layer.
As a further improvement of the utility model, the lower color-changing screen comprises a third substrate layer, a second electrochromic layer, a second pattern layer, a second electrolyte layer and a lower electrode layer, wherein the lower electrode layer is printed on the bottom of the first substrate layer through a screen, the second electrochromic layer is printed on the top of the third substrate layer through a screen, the second pattern layer is printed on the top of the second electrochromic layer through a screen, the second electrolyte layer is printed on the top of the second pattern layer through a screen, and the second electrolyte layer is attached to the lower electrode layer.
As a further improvement of the present utility model, the first substrate layer is made of PET material, and the second substrate layer and the third substrate layer are made of ITO film.
The beneficial effects of the utility model are as follows: the information of the cardholder of the credit card is displayed through the electrochromic display screen after the password is input, and when the credit card is lost or stolen, other people cannot easily acquire the information of the credit card, so that the possibility of swiping the card by theft is greatly reduced, the safety is improved, and the benefit loss of the cardholder is avoided.
Drawings
FIG. 1 is an exploded view of the present utility model;
FIG. 2 is a front view of the present utility model;
Fig. 3 is a layered view of an electrochromic screen of the present utility model.
Reference numerals: 1-front plate, 2-electrochromic display screen, 3-back plate, 4-NFC antenna, 5-front display window, 6-rear display window, 7-NFC chip, 200-first substrate layer, 201-upper electrode layer, 202-first electrolyte layer, 203-first pattern layer, 204-first electrochromic layer, 205-second substrate layer, 206-third substrate layer, 207-second electrochromic layer, 208-second pattern layer, 209-second electrolyte layer, 210-lower electrode layer.
Description of the embodiments
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in fig. 1-3, the utility model provides a credit card with electrochromic display, which comprises a front plate 1, a rear plate 3, an electrochromic display screen 2 and an NFC module, wherein the electrochromic display screen 2 is arranged between the front plate 1 and the rear plate 3, the NFC module is arranged on the electrochromic display screen 2, and the NFC module is electrically connected with the electrochromic display screen 2.
As an embodiment of the present utility model, the NFC module includes an NFC antenna 4 and an NFC chip 7, where the NFC antenna 4 is disposed on the electrochromic display screen 2, the NFC chip 7 is bound above the NFC antenna 4, and the NFC antenna 4 is electrically connected with the NFC chip 7.
As another embodiment of the present utility model, the NFC chip 7 is electrically connected to the electrochromic display 2, and the NFC chip 7 is in inductive communication with an external NFC device.
As another embodiment of the present utility model, the front plate 1 is provided with a front display window 5 for displaying credit card information.
As another embodiment of the present utility model, the rear plate 3 is provided with a rear display window 6 for displaying credit card information.
As another embodiment of the present utility model, the electrochromic display screen 2 includes an upper color-changing screen and a lower color-changing screen, wherein the top of the upper color-changing screen is attached to the front plate 1, the bottom of the lower color-changing screen is attached to the rear plate 3, and the bottom of the upper color-changing screen is attached to the top of the lower color-changing screen.
As another embodiment of the present utility model, the upper color-changing screen includes a first substrate layer 200, an upper electrode layer 201, a first electrolyte layer 202, a first pattern layer 203, a first electrochromic layer 204 and a second substrate layer 205, where the upper electrode layer 201 is screen-printed on top of the first substrate layer 200, the first electrolyte layer 202 is screen-printed on top of the upper electrode layer 201, the first electrochromic layer 204 is screen-printed on bottom of the second substrate layer 205, the first pattern layer 203 is screen-printed on bottom of the first electrochromic layer 204, and the first pattern layer 203 is attached to the first electrolyte layer 202.
As another embodiment of the present utility model, the lower color-changing screen includes a third substrate layer 206, a second electrochromic layer 207, a second pattern layer 208, a second electrolyte layer 209, and a lower electrode layer 210, wherein the lower electrode layer 210 is screen-printed on the bottom of the first substrate layer 200, the second electrochromic layer 207 is screen-printed on the top of the third substrate layer 206, the second pattern layer 208 is screen-printed on the top of the second electrochromic layer 207, the second electrolyte layer 209 is screen-printed on the top of the second pattern layer 208, and the second electrolyte layer 209 is attached to the lower electrode layer 210.
As another embodiment of the present utility model, the first substrate layer 200 is made of PET, and the second substrate layer 205 and the third substrate layer 206 are made of ITO films.
The utility model provides a credit card with a printed electrochromic display, wherein the information of a cardholder of the credit card is displayed through an electrochromic display screen after a password is input, and when the credit card is lost or stolen, other people cannot easily acquire the information of the credit card, so that the possibility of the card being stolen and swiped is greatly reduced, the safety is improved, and the benefit loss of the cardholder is avoided.
In the scheme of the utility model, the electrochromic display screen 2 is clamped between the front plate 1 and the rear plate 3, the electrochromic display screen 2 is a double-sided display screen, information can be displayed on both sides, the front display window 5 is arranged on the front plate 1, the rear display window 6 is arranged on the rear plate 3, and information is displayed through the two windows. As shown in fig. 2, the front display window 5 may display a card number and a expiration date, and the rear display window 6 may display a security code.
The NFC antenna 4 is arranged on the electrochromic display screen 2, the NFC chip 7 is bound above the NFC antenna 4 and can be powered by a smart phone with NFC function or other NFC equipment, the NFC chip 7 has an external power supply function and an encryption function, when the smart phone inputs a correct key, the NFC chip 7 supplies power to the electrochromic display screen 2, information of the electrochromic display screen 2 is displayed, and the key is incorrect and is not reactive.
The NFC chip 7 can also use a model with an external power supply function and an MCU, so that more complex functions can be realized; the electrochromic display screen 2 can be in a fixed pattern or a pattern similar to a nixie tube, and the electrochromic display screen 2 in the nixie tube pattern needs to be driven by the NFC chip 7 with the MCU; when the credit card information is required to be checked, the credit card is placed on NFC equipment, a secret key is input, the MCU on the NFC chip 7 judges whether the secret key is correct or not, if the password is correct, the MCU outputs high and low voltages to the contacts on the electrochromic display screen 2, and the electrochromic display screen 2 displays information; if the password is incorrect, the information is not displayed; after the electrochromic display screen 2 displays information, the information can fade again within 5-20 seconds, so that the information is hidden.
The electrochromic display screen 2 is manufactured as follows: printing conductive carbon paste on the first substrate layer 200 (125 um or 188 um) by using a screen printing process to form the upper electrode layer 201 and the first electrolyte layer 202; printing the pattern layer and the first electrochromic layer 204 (PETDOT: PSS) on the second substrate layer 205 (125 um or 188 um), wherein the first electrochromic layer 204 can use either a screen printing process or an inkjet printing process, which can rapidly achieve printing of numbers on different credit cards; attaching the upper and lower base materials according to the positions, wherein a wire is led out of the upper electrode layer 201 and connected with the NFC chip 7, and a wire is led out of the first electrochromic layer 204 and connected with the NFC chip 7; the materials required by the electrochromic technology are printed on the other surface layer by layer, the lower electrode layer 210 and the second electrolyte layer 209 are printed on the bottom of the first substrate layer 200, the second pattern layer 208 and the second electrochromic layer 207 (PEDOT: PSS) are printed on the third substrate layer 206 (125 um or 188 um), and the second electrochromic layer 207 can be formed by using either a screen printing process or an inkjet printing process. Attaching the lower color-changing screen to the upper color-changing screen to form a complete front and back electrochromic display screen 2; wherein the lower electrode layer 210 leads out a wire to be connected with the NFC chip 7, and the second electrochromic layer 207 leads out a wire to be connected with the NFC chip 7.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (9)
1. The credit card with the electrochromic display is characterized by comprising a front plate, a rear plate, an electrochromic display screen and an NFC module, wherein the electrochromic display screen is arranged between the front plate and the rear plate, the NFC module is arranged on the electrochromic display screen, and the NFC module is electrically connected with the electrochromic display screen.
2. The credit card of claim 1, wherein the NFC module includes an NFC antenna and an NFC chip, the NFC antenna is disposed on the electrochromic display screen, the NFC chip is bound above the NFC antenna, and the NFC antenna is electrically connected to the NFC chip.
3. The credit card of claim 2, wherein said NFC chip is electrically connected to said electrochromic display screen, said NFC chip in inductive communication with an external NFC device.
4. A printed electrochromic display credit card according to claim 1, characterised in that the front panel is provided with a front display window for displaying credit card information.
5. A printed electrochromic display credit card according to claim 1, characterised in that the rear panel is provided with a rear display window for displaying credit card information.
6. The credit card of claim 1, wherein said electrochromic display screen comprises an upper color-changing screen and a lower color-changing screen, wherein the top of said upper color-changing screen is attached to said front plate, the bottom of said lower color-changing screen is attached to said rear plate, and the bottom of said upper color-changing screen is attached to the top of said lower color-changing screen.
7. The credit card of claim 6, wherein said upper color screen comprises a first substrate layer, an upper electrode layer, a first electrolyte layer, a first pattern layer, a first electrochromic layer and a second substrate layer, said upper electrode layer is screen printed on top of said first substrate layer, said first electrolyte layer is screen printed on top of said upper electrode layer, said first electrochromic layer is screen printed on bottom of said second substrate layer, said first pattern layer is screen printed on bottom of said first electrochromic layer, said first pattern layer is bonded to said first electrolyte layer.
8. The credit card of claim 7, wherein said lower color screen comprises a third substrate layer, a second electrochromic layer, a second pattern layer, a second electrolyte layer and a lower electrode layer, said lower electrode layer is screen printed on the bottom of said first substrate layer, said second electrochromic layer is screen printed on the top of said third substrate layer, said second pattern layer is screen printed on the top of said second electrochromic layer, said second electrolyte layer is screen printed on the top of said second pattern layer, said second electrolyte layer is in contact with said lower electrode layer.
9. The printed electrochromic display credit card of claim 8, wherein said first substrate layer is PET material and said second and third substrate layers are ITO film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322738311.5U CN220913653U (en) | 2023-10-12 | 2023-10-12 | Credit card with printed electrochromic display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322738311.5U CN220913653U (en) | 2023-10-12 | 2023-10-12 | Credit card with printed electrochromic display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220913653U true CN220913653U (en) | 2024-05-07 |
Family
ID=90903764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322738311.5U Active CN220913653U (en) | 2023-10-12 | 2023-10-12 | Credit card with printed electrochromic display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220913653U (en) |
-
2023
- 2023-10-12 CN CN202322738311.5U patent/CN220913653U/en active Active
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