CN112631036A - Electronic paper display device - Google Patents
Electronic paper display device Download PDFInfo
- Publication number
- CN112631036A CN112631036A CN202011611648.4A CN202011611648A CN112631036A CN 112631036 A CN112631036 A CN 112631036A CN 202011611648 A CN202011611648 A CN 202011611648A CN 112631036 A CN112631036 A CN 112631036A
- Authority
- CN
- China
- Prior art keywords
- electronic paper
- display device
- ear
- layer
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 239000010410 layer Substances 0.000 claims description 45
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 210000005069 ears Anatomy 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/16755—Substrates
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1676—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
Abstract
The invention relates to the technical field of electronic paper, in particular to an electronic paper display device. Including base plate (1), electron paper layer (2), protection film (3), driver chip (6) and antenna (8), electron paper layer (2) wherein one side is equipped with outstanding ear (4), just be equipped with via hole (5) that are used for connecting electron paper layer (2) and base plate (1) on ear (4), driver chip (6) set up the one side of keeping away from ear (4) in base plate (1), antenna (8) set up the one side that is close to ear (4) in base plate (1). By adopting the electronic paper display device, the wiring of the substrate does not need to be wound, the whole area of the electronic paper display device does not need to be increased by arranging the antenna, the repair is convenient, and the yield is higher.
Description
Technical Field
The invention relates to the technical field of electronic paper, in particular to an electronic paper display device.
Background
Electronic paper adopts electrophoretic Display (EPD) technology as a Display panel, and the Display effect of the electronic paper is close to the natural paper effect, so that the electronic paper is free from reading fatigue, and is increasingly popular in the market.
A general electronic paper display device includes a substrate, an electronic paper layer, a protection film, and a driving chip, and the electronic paper display device generally has a protruding ear portion disposed on one side thereof, and a via hole for connecting the substrate and the electronic paper layer is disposed on the ear portion, but the via hole and the driving chip in the prior art are disposed on the same side of the electronic paper display device, as shown in fig. 1, which may cause the following defects:
firstly, the wiring is needed to be routed between the substrate and the driving chip, so that the wiring needs to be bypassed around the via hole, the wiring distance is increased, and the impedance is increased, so that the overall power consumption of the display screen is influenced;
secondly, because the metal wiring on the substrate can interfere the antenna, the antenna can avoid the metal wiring on the substrate during design, according to the structure in the prior art, the antenna can only be additionally designed on the other side or around the electronic paper display device, and the whole area of the electronic paper display device can be increased;
at present, due to the interference of the via holes, different binding pressure heads need to be designed for the electronic paper display devices with different sizes, and when the problem that the driving chip is bad is repaired, the repairing is inconvenient due to the interference of the via holes, and the repairing yield is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the electronic paper display device is adopted, the wiring of the substrate does not need to be wound, the whole area of the electronic paper display device does not need to be increased by arranging the antenna, the repair is convenient, and the yield is high.
The technical scheme adopted by the invention is as follows: the utility model provides an electronic paper display device, includes base plate, electronic paper layer, protection film, driver chip and antenna, electronic paper layer wherein one side is equipped with outstanding ear, just be equipped with the via hole that is used for connecting electronic paper layer and base plate in the ear, driver chip sets up the one side of keeping away from the ear at the base plate, the antenna setting is close to one side of ear at the base plate.
Preferably, the number of the ear parts is two, the ear parts are respectively arranged on two sides of one side of the electronic paper layer, each ear part is provided with a via hole, and the antenna is arranged between the two ear parts.
Preferably, the via hole is arranged in the middle of the ear, and silver paste is arranged in the via hole and used for connecting the electronic paper layer with the substrate.
Preferably, the substrate includes a portion provided with a trace and a portion not provided with a trace, and the substrate under the antenna is a portion not provided with a trace.
Preferably, the substrate is provided with an X electrode and a Y electrode, the X electrode is connected with the driving chip through a first wire, the Y electrode is connected with the driving chip through a second wire, the X electrode is arranged on the substrate below the ear, and the X electrode and the Y electrode are not arranged on the substrate below the antenna.
Preferably, the distance from the side of the whole antenna far away from the driving chip to the driving chip is A, the distance from the side of the ear far away from the driving chip to the driving chip is B, and B is greater than or equal to A.
Preferably, the substrate, the electronic paper layer and the protective film are sequentially stacked, and the protective film completely covers the electronic paper layer.
Preferably, the electronic paper layer comprises an OCA layer, a PET layer, an ITO layer, an electronic ink layer and an adhesive layer which are arranged in sequence.
Compared with the prior art, the invention has the following advantages by adopting the structure: firstly, the driving chip and the via hole are separately arranged, so that the wiring between the driving chip and the substrate does not need to bypass the via hole, the wiring distance is short, and the overall power consumption is low; secondly, the antenna is arranged between the two ears, and no wiring is arranged below the antenna, so that the antenna is not interfered, and the whole area of the display device is smaller because the installation position of the antenna is not additionally increased; finally, because the one side of installing driver chip has not had the via hole, so need not design different pressure heads that bind, not unidimensional display device adopt the pressure head that binds of a model can, because the driver chip edge does not set up the via hole moreover, so reprocess also more convenient, reprocess the yield higher.
Drawings
Fig. 1 is a schematic structural diagram of an electronic paper display device in the prior art.
Fig. 2 is a schematic structural diagram of the electronic paper display device according to the present invention.
Fig. 3 is a side sectional view of the electronic paper display device of the present invention.
And (4) retracting as shown in the figure: 1. a substrate; 2. an electronic paper layer; 21. an OCA layer; 22. a PET layer; 23. an ITO layer; 24. an electronic ink layer; 25. an adhesive layer; 3. a protective film; 4. an ear portion; 5. a via hole; 6. a driving chip; 7. FPC; 8. an antenna.
Detailed Description
The present invention will be further described below by way of specific embodiments, but the present invention is not limited to the following specific embodiments.
An electronic price tag with an electronic paper display device, as shown in fig. 3, comprises a substrate 1, an electronic paper layer 2 and a protective film 3, wherein:
the substrate 1 is a TFT substrate 1, is arranged at the bottom and is provided with X electrodes and Y electrodes, the TFT substrate 1 is also provided with a driving chip 6 and an FPC7, the driving chip 6 and the FPC7 are both arranged at the same side of the substrate 1, all the X electrodes are connected with the driving chip 6 through first wires, all the Y electrodes are connected with the driving chip 6 through second wires, and the substrate 1 comprises three parts, wherein the first part is provided with the X electrodes and the Y electrodes and comprises a display area; the second part is provided with only the X-electrodes, including the area of the substrate 1 under the ears 4; the third part is neither the X electrode nor the Y electrode and is also free of any traces, including the area under the antenna 8;
the electronic paper layer 2 comprises an OCA layer 21, a PET layer 22, an ITO layer 23, an electronic ink layer 24 and an adhesive layer 25, wherein the adhesive layer 25 is fixedly bonded to the substrate 1, and two protruding ears 4 are disposed on one side of the electronic paper layer 2, and the two ears 4 are disposed at two ends of one side, so that a u-shaped region is formed between the two ears 4, no trace or electrode is disposed on the substrate 1 in the region, then the antenna 8 is disposed in the region, either front or back or up and down, and the antenna 8 is not wound out of the region, i.e. the whole antenna 8 is disposed in the region, so that it is not necessary to additionally increase the placement region of the antenna 8, and a via hole 5 is disposed in the middle of the ear 4, the via hole 5 passes through the ITO layer 23, the electronic ink layer 24 and the adhesive layer 25, silver paste is arranged in the through hole 5, so that the electronic paper layer 2 and the substrate 1 can be conducted;
the protective film 3 is a PS film for protecting the electronic paper layer 2, so that the electronic paper layer 2 is completely coated after the electronic paper layer 2 is mounted on the substrate 1, thereby achieving excellent protection.
The advantages of this embodiment are:
1. two via holes 5 (silver dots) and a driving chip 6 are respectively arranged at the upper side and the lower side, the via holes 5 are arranged above, the driving chip 6 and an FPC7 are arranged below, and then the antenna 8 can be designed in the area between the two via holes 5 of the electronic paper display device when the client designs the whole machine PCB radio frequency antenna 8. The antenna 8 which must be extended originally can be contracted to the area between the two via holes 5, and the design of the left end and the right end of the whole machine can be designed symmetrically, so that the display area of the whole machine is higher, the whole appearance is more attractive, and the design cost of the whole machine of a client side can be reduced.
2. The via hole 5 is designed on the upper surface, so that the first wiring of the TFT does not need to be designed by bypassing the via hole 5, the position is saved, the length of the first wiring can be shortened, the length of the first wiring with medium and small sizes can be optimized by 5% -15%, the resistance of the first wiring can be reduced by 3% -10%, and the length of the second wiring can be optimized by 1% -2%, so that the screen brushing power consumption of the electronic paper module is reduced.
3. The via hole 5 is designed on the upper surface, the interference of silver dots in the via hole 5 is avoided, when the electronic paper display modules with different sizes are used, the pressure heads of the driving chip 6 can be unified, and the pressure heads do not need to be replaced again when the sizes are replaced, so that the labor cost is reduced, and the productivity is improved.
4. The via hole 5 is designed on the upper surface, the interference of a silver point is avoided, and the problem that the electronic paper layer 2 at the silver point is scalded before the bad problem of the driving chip 6 is repaired can be reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an electronic paper display device, includes base plate (1), electronic paper layer (2), protection film (3), driver chip (6) and antenna (8), electronic paper layer (2) wherein one side is equipped with outstanding ear (4), just be equipped with via hole (5) that are used for connecting electronic paper layer (2) and base plate (1) on ear (4), its characterized in that: drive chip (6) set up the one side of keeping away from ear (4) in base plate (1), antenna (8) set up the one side that is close to ear (4) in base plate (1).
2. The electronic paper display device of claim 1, wherein: ear (4) are two, set up respectively on the both sides of electron paper layer (2) one side, and are equipped with a via hole (5) on every ear (4) to antenna (8) set up between two ears (4).
3. The electronic paper display device of claim 2, wherein: via hole (5) set up in ear (4) middle part, just set up silver thick liquid in via hole (5) and be used for being connected electron paper layer (2) and base plate (1).
4. The electronic paper display device of claim 2, wherein: the substrate (1) comprises a routing part and a non-routing part, and the substrate (1) below the antenna (8) is not provided with the routing part.
5. The electronic paper display device of claim 4, wherein: be equipped with X electrode and Y electrode on base plate (1), just the X electrode is walked through first line and is connected with driver chip (6), the Y electrode is walked through the second and is connected with driver chip (6), just be equipped with the X electrode on base plate (1) of ear (4) below, and do not set up X electrode and Y electrode on base plate (1) of antenna (8) below.
6. The electronic paper display device of claim 4, wherein: antenna (8) are whole to be kept away from distance of driver chip (6) one side apart from driver chip (6) and are A, ear (4) are kept away from distance of driver chip (6) one side apart from driver chip (6) and are B, and B more than or equal to A.
7. The electronic paper display device of claim 1, wherein: the base plate (1), the electronic paper layer (2) and the protective film (3) are sequentially stacked, and the protective film (3) is completely coated outside the electronic paper layer (2).
8. The electronic paper display device of claim 1, wherein: the electronic paper layer (2) comprises an OCA layer (21), a PET layer (22), an ITO layer (23), an electronic ink layer (24) and an adhesive layer (25) which are arranged in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011611648.4A CN112631036A (en) | 2020-12-31 | 2020-12-31 | Electronic paper display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011611648.4A CN112631036A (en) | 2020-12-31 | 2020-12-31 | Electronic paper display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112631036A true CN112631036A (en) | 2021-04-09 |
Family
ID=75286781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011611648.4A Pending CN112631036A (en) | 2020-12-31 | 2020-12-31 | Electronic paper display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112631036A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113552754A (en) * | 2020-04-17 | 2021-10-26 | 株式会社搜路研 | Display device |
| CN113706999A (en) * | 2021-09-02 | 2021-11-26 | 业成科技（成都）有限公司 | Electronic shelf label |
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| CN113706999A (en) * | 2021-09-02 | 2021-11-26 | 业成科技（成都）有限公司 | Electronic shelf label |
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