CN210051987U - Block type multicolor display electrophoretic display device - Google Patents
Block type multicolor display electrophoretic display device Download PDFInfo
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- CN210051987U CN210051987U CN201921154331.5U CN201921154331U CN210051987U CN 210051987 U CN210051987 U CN 210051987U CN 201921154331 U CN201921154331 U CN 201921154331U CN 210051987 U CN210051987 U CN 210051987U
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- 230000001681 protective effect Effects 0.000 claims description 18
- 239000003792 electrolyte Substances 0.000 claims description 11
- 229920002799 BoPET Polymers 0.000 claims description 8
- 238000001962 electrophoresis Methods 0.000 claims description 8
- 238000010023 transfer printing Methods 0.000 claims description 8
- 239000003086 colorant Substances 0.000 abstract description 18
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- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The utility model provides a block type polychrome shows electrophoretic display device, including a plurality of display element, each display element includes the base plate, the drive backplate, sealed envelope of glue, three two liang of adjacent electrophoretic display district, set up the interval between two adjacent electrophoretic display districts, set up respectively in the three rendition electrode of the side in three electrophoretic display district, set up in three electrophoretic display district top and respectively with three public electrode that rendition electrode is connected, set up in the transparent substrate of public electrode top, set up protection film and drive chip in transparent substrate top. Therefore, each display unit can use the least electrophoretic particle types, the particle concentration is reduced, the three electrophoretic layers are mutually combined to realize high-brightness color display of multiple colors, and the refresh rate is improved.
Description
Technical Field
The utility model relates to an electronic paper technical field, especially a block type polychrome shows electrophoretic display device.
Background
The principle of an EPD (Electrophoretic Display) is to Display multicolor or color images by directionally moving charged or neutral Electrophoretic particles by an electric field. Electrophoretic display devices are widely used in the field of delivering static graphic and text information, such as e-books or electronic shelf labels. At present, black and white display is a display device whose display performance is closest to the paper characteristics; the electrophoretic display device has display content storage property and display content does not disappear even if power is not applied. The particles of the electrophoretic display device have a scattering property, and when an image is displayed, the particles of different colors scatter or absorb ambient light, and have the same property as that of paper ink. The particle-type electrophoretic display device is one of display devices that can easily realize a high reflectance in multicolor display as compared with a reflective liquid crystal display device. However, although a color electrophoretic display device of a subtractive color mixing system or an additive color mixing system can be realized, there are still many problems in multicolor display of a combination type of particles such as white blue, white yellow, black-white red, and black-white yellow. The basic structure of these electrophoretic display devices is a water-blocking upper protective film, OCA paste, PET film upper substrate, common electrode, electrophoretic layer, driving TFT array, glass lower substrate or PI flexible lower substrate with TFT array attached (PI flexible substrate usually needs a water-blocking lower protective film), transfer electrode, common electrode lead, and sealant filled between the upper protective film and the lower substrate (or lower protective film). These structures are employed in black and white, three-color and color displays. However, in practical application, the three-color refresh rate is low, and for color display, not only the refresh rate is low, but also the color saturation is not good.
Although the electrophoretic display device has the advantages of the above-mentioned paper-like devices and high reflectance, color particle mixing is not easily achieved due to the difficulty in matching between charged pigment particles and between charged particles and an electrophoretic liquid. The selection range of pigment particles suitable for electrophoretic displays is not wide enough. Multicolor (four or more) or colored pictures are not easy to realize, and the performance or high cost limits the wide application of the electrophoretic display device. In the prior art, a color display device adopting a black-and-white and subtraction color mixing system or an addition color mixing system has high cost and low refresh rate, and the color saturation of color mixing is not high except the color of electrophoretic particles, so that the operating temperature range is very narrow. The display of more colors can be realized through simple splicing of the multicolor display device, but the multicolor display device has high driving cost and poor uniformity of splicing seams and backgrounds. Taking the example of displaying 4 colors (black and white, red and blue), if only one electrophoretic layer is used in one display device, four particles of black and white, red and blue are required. The concentration of each particle needs to be sufficiently high to ensure reflectivity.
The technical scheme is that a TFT driving array for an electrophoresis type display device is divided, each area is composed of a driving unit, and the driving unit is composed of a scanning electrode, a signal electrode, a TFT (single grid electrode or double grid electrodes), a pixel electrode, a storage capacitor, a via hole and an insulating layer. The driving unit is connected with the corresponding scanning electrode, the corresponding signal electrode and the corresponding storage capacitor through the signal electrode line, the corresponding scanning electrode line and the corresponding storage capacitor. Each TFT driving array corresponds to a complete electrophoresis layer, and the electrophoresis particles and the electrophoresis liquid in the same electrophoresis layer have the same type and property. But in different regions, different electrophoretic particle systems are used; the multiple electrophoretic layers are combined with each other to display multicolor or color images under the action of a uniform driving IC output waveform.
In summary, by using the electrophoretic layer composed of a plurality of particles and designing a special TFT driving array, a wider variety of colors can be displayed in the whole display device, and the display device can be rapidly refreshed to meet the application scenarios of a plurality of colors at low cost.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a block-type multicolor display electrophoretic display device having a plurality of display units, each display unit having three different electrophoretic layers, and spacing walls disposed between the different electrophoretic layers, so that each display unit can use the least electrophoretic particle types, reducing the particle concentration, realizing high-brightness color display of multiple colors by combining the three electrophoretic layers, and improving the refresh rate, to solve the above problems.
A block type multicolor display electrophoretic display device comprises a plurality of display units, wherein each display unit comprises a substrate, a driving back plate arranged on the substrate, a sealant surrounding layer which is arranged on the driving back plate and is annularly arranged, three two adjacent electrophoretic display regions positioned in the sealant surrounding layer, a partition wall arranged between the two adjacent electrophoretic display regions, three transfer printing electrodes which are respectively arranged at the sides of the three electrophoretic display regions, three common electrodes which are arranged above the three electrophoretic display regions and are respectively connected with the three transfer printing electrodes, a transparent substrate arranged above the common electrodes, a protective film arranged above the transparent substrate and a driving chip; the partition wall is vertically arranged between the driving back plate and the transparent substrate or the protective film; the driving back plate comprises three driving blocks respectively corresponding to the three electrophoretic display areas, a connecting lead connected between two adjacent driving blocks, driving leads respectively connecting the three driving blocks and a driving chip, and a common lead connecting the three common electrodes and the driving chip; the three electrophoretic display regions comprise an electrolyte layer positioned at the bottom and an electrophoretic layer positioned above the electrolyte layer, and the electrophoretic layer comprises at least a plurality of first electrophoretic particles and a plurality of second electrophoretic particles.
Further, the protection film comprises two layers of PET films, and an ultraviolet-proof layer, an anti-dazzle layer and a water-proof layer which are arranged between the two layers of PET films.
Furthermore, the three electrophoretic display regions are respectively a first electrophoretic display region, a second electrophoretic display region and a third electrophoretic display region, wherein the width of the first electrophoretic display region is equal to the sum of the widths of the second electrophoretic display region and the third electrophoretic display region, and the second electrophoretic display region and the third electrophoretic display region are both located on the same side of the first electrophoretic display region.
Furthermore, the partition walls include a first partition wall disposed between the first electrophoretic display region and the second electrophoretic display region, a second partition wall disposed between the first electrophoretic display region and the third electrophoretic display region, and a third partition wall disposed between the second electrophoretic display region and the third electrophoretic display region.
Further, the partition wall comprises a bottom sealing layer bonded with the driving back plate, a top sealing layer bonded with the protective film and a pattern layer arranged between the bottom sealing layer and the top sealing layer.
Further, the partition wall comprises a bottom sealing layer bonded with the driving back plate, a top sealing layer bonded with the transparent substrate and a pattern layer arranged between the bottom sealing layer and the top sealing layer.
Further, the three common electrodes are a first common electrode disposed between the first electrophoretic display region and the transparent substrate, a second common electrode disposed between the second electrophoretic display region and the transparent substrate, and a third common electrode disposed between the third electrophoretic display region and the transparent substrate.
Further, the three common electrodes are a first common electrode disposed between the first electrophoretic display region and the transparent substrate, a second common electrode disposed between the second electrophoretic display region and the transparent substrate, and a third common electrode disposed between the third electrophoretic display region and the transparent substrate.
Further, the driving block is a TFT driving array.
Further, the connecting leads include TFT data leads and gate leads.
Compared with the prior art, the block type multicolor display electrophoretic display device of the utility model comprises a plurality of display units, each display unit comprises a substrate, a driving back plate arranged on the substrate, a sealing glue surrounding layer which is arranged on the driving back plate and is annularly arranged, three two adjacent electrophoretic display areas positioned in the sealing glue surrounding layer, a partition wall arranged between the two adjacent electrophoretic display areas, three transfer printing electrodes respectively arranged at the sides of the three electrophoretic display areas, three common electrodes arranged above the three electrophoretic display areas and respectively connected with the three transfer printing electrodes, a transparent substrate arranged above the common electrodes, a protective film arranged above the transparent substrate and a driving chip; the partition wall is vertically arranged between the driving back plate and the transparent substrate or the protective film; the driving back plate comprises three driving blocks respectively corresponding to the three electrophoretic display areas, a connecting lead connected between two adjacent driving blocks, driving leads respectively connecting the three driving blocks and a driving chip, and a common lead connecting the three common electrodes and the driving chip; the three electrophoretic display regions comprise an electrolyte layer positioned at the bottom and an electrophoretic layer positioned above the electrolyte layer, and the electrophoretic layer comprises at least a plurality of first electrophoretic particles and a plurality of second electrophoretic particles. Therefore, each display unit can use the least electrophoretic particle types, the particle concentration is reduced, the three electrophoretic layers are mutually combined to realize high-brightness color display of multiple colors, and the refresh rate is improved.
Drawings
Embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic top view of a block-type multi-color electrophoretic display device according to the present invention.
Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.
Fig. 3 is a schematic bottom view of the block-type multi-color electrophoretic display device according to the present invention.
Fig. 4 is a sectional view taken along line B-B in fig. 1.
Fig. 5 is a sectional view taken along line C-C of fig. 1.
Fig. 6 is a cross-sectional view taken along line D-D of fig. 1.
Detailed Description
The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
In order to highlight the invention, the whole constituent structures of the display device are not listed in this embodiment, and structures well known to those skilled in the art, such as descriptions about the composition of the electrophoretic fluid, the color, size and charge polarity of the electrophoretic particles, the micro-space structure of the micro-cup or micro-capsule type, the sealing layer or adhesive glue layer of the electrophoretic layer, the specific distribution of the lead electrodes, the data lines, the scan lines, the specific structures of the test unit and the TFT driving unit, etc., are omitted, which do not affect the understanding of the present invention.
Please refer to fig. 1 and fig. 3, the utility model provides a block type multicolor display electrophoretic display device includes a plurality of display units, each display unit includes base plate 91, set up drive backplate 9 on base plate 91, set up on drive backplate 9 and the sealed envelope 5 of glue that the annular set up, be located sealed two double-phase adjacent electrophoretic display district of envelope 5, set up spacing wall 7 between two adjacent electrophoretic display districts, respectively with three electrophoretic display district electric connection's three rendition electrode, set up in three electrophoretic display district top and respectively with three public electrode of being connected of rendition electrode, set up in the transparent substrate 11 of public electrode top, and set up in the protection film 1 of transparent substrate 11 top.
The protective Film comprises two layers of PET films and an ultraviolet-proof layer, an anti-dazzle layer and a water-proof layer which are arranged between the two layers of PET films. The ultraviolet-proof layer, the anti-dazzle layer and the water-blocking layer can be sequentially arranged from bottom to top or combined randomly. Such as protective film of verreal38MW003D from beauty corporation.
Specifically, the three electrophoretic display regions are a first electrophoretic display region 2, a second electrophoretic display region 3, and a third electrophoretic display region 4, respectively, where the width of the first electrophoretic display region 2 is equal to the sum of the widths of the second electrophoretic display region 3 and the third electrophoretic display region 4, and the second electrophoretic display region 3 and the third electrophoretic display region 4 are located on one side of the first electrophoretic display region 2.
The partition walls 7 include a first partition wall disposed between the first electrophoretic display region 2 and the second electrophoretic display region 3, a second partition wall disposed between the first electrophoretic display region 2 and the third electrophoretic display region 4, and a third partition wall disposed between the second electrophoretic display region 3 and the third electrophoretic display region 4.
The transfer electrodes include a first transfer electrode 61 connected to the first electrophoretic display region 2, a second transfer electrode 62 connected to the second electrophoretic display region 3, and a third transfer electrode 63 connected to the third electrophoretic display region 4.
The driving back plate 9 is provided with a driving chip 8 at the outer side of the sealing rubber surrounding layer 5.
Referring to fig. 2 and 3, the three common electrodes are a first common electrode 10a disposed between the first electrophoretic display region 2 and the transparent substrate 11, a second common electrode 10b disposed between the second electrophoretic display region 3 and the transparent substrate 11, and a third common electrode 10c disposed between the third electrophoretic display region 4 and the transparent substrate 11, respectively, and the partition 7 is vertically disposed between the driving back plate 9 and the transparent substrate 11. In this embodiment, the transparent substrate 11 entirely covers the first electrophoretic display region 2, the second electrophoretic display region 3, the third electrophoretic display region 4, and the partition walls 7, but in other embodiments, the transparent substrate 11 may be three first to third transparent substrates respectively covering the first electrophoretic display region 2, the second electrophoretic display region 3, and the third electrophoretic display region 4, and at this time, the partition walls 7 are vertically disposed between the driving back plate 9 and the protection film 1 and pass through the gaps between the adjacent transparent substrates.
The driving backplane 9 includes a first driving block 21 corresponding to the first electrophoretic display region 2, a second driving block 31 corresponding to the second electrophoretic display region 3, a third driving block 41 corresponding to the third electrophoretic display region 4, a plurality of first connecting leads 23 connected between the first driving block 21 and the second driving block 31, a plurality of second connecting leads 24 connected between the first driving block 21 and the third driving block 41, a plurality of third connecting leads 33 connected between the second driving block 31 and the third driving block 41, a first driving lead 22 connecting the first driving block 21 and the driving chip 8, a second driving lead 32 connecting the second driving block 31 and the driving chip 8, a third driving lead 42 connecting the third driving block 41 and the driving chip 8, and a common lead connecting the three common electrodes and the driving chip 8.
The first driving block 21, the second driving block 31 and the third driving block 41 are all TFT driving arrays, and the TFT driving arrays are composed of a plurality of regularly arranged driving units.
The first, second and third connection leads 23, 24 and 33 each include TFT data leads and gate leads.
In the present embodiment, the first common electrode 10a is connected to the driving chip 8 through a first common electrode lead 12a, and the second common electrode 10b is connected to the third common electrode 10c and to the driving chip 8 through a second common electrode lead 12 b.
Referring to fig. 4, when the top of the barrier ribs 7 is connected to the transparent substrate 11, the barrier ribs 7 include a bottom sealant 71 bonded to the driving back plate 9, a top sealant 73 bonded to the transparent substrate 11, and a pattern layer disposed between the bottom sealant 71 and the top sealant 73. When the top of the barrier ribs 7 is coupled to the protective film 1, the top sealant 73 is directly adhered to the protective film 1.
Referring to fig. 5, the first transfer electrode 61, the second transfer electrode 62 and the third transfer electrode 63 are respectively disposed at one side of the first electrophoretic display region 2, the second electrophoretic display region 3 and the third electrophoretic display region 4, the top of the transfer electrode is connected to the corresponding common electrode, and the bottom of the transfer electrode is connected to the common electrode lead attached to the driving backplane.
Referring to fig. 6, the first electrophoretic display area 2, the second electrophoretic display area 3, and the third electrophoretic display area 4 each include an electrolyte layer 53 at the bottom and an electrophoretic layer 50 above the electrolyte layer 53, and the electrophoretic layer 50 includes at least a plurality of first electrophoretic particles 51 and second electrophoretic particles 52. The electrophoretic particles in the electrophoretic layer 50 of the first electrophoretic display area 2, the second electrophoretic display area 3, and the third electrophoretic display area 4 are different, and thus different unit colors are displayed. The three electrophoretic display regions are combined with each other such that three different cell colors constitute different colors.
In this embodiment, the first electrophoretic display region 2 adopts an electrophoretic layer (black, white, red) with model number E4.1E of EINK company, the second electrophoretic display region 3 adopts an electrophoretic layer (blue, white) with model number 0703-710K0002, and the third electrophoretic display region 4 adopts an electrophoretic layer (green, white) with model number 0703-710K0005 or an electrophoretic layer with other colors. The first electrophoretic display region 2, the second electrophoretic display region 3 and the third electrophoretic display region 4 may also be electrophoretic layers of types 0703-.
The areas of the transfer electrodes need to be removed from the electrophoretic layer 50 and the electrolyte layer 53, and only the substrate and the common electrode portions remain. Laser cutting is used first, followed by solvent cleaning, and then the transfer electrode material is placed at the selected location using printing, ink jet, or other convenient precision.
The sealant surrounding layer 5 is prepared by adopting conventional sealant.
The first transfer electrode 61, the second transfer electrode 62, and the third transfer electrode 63 are all dispensed with silver (XA-220 MV).
The driver chip 8 is a driver chip with a model number of SSD1619 AZ.
The driving backplane 9 uses a-Si TFT to drive the backplane.
The first common electrode 10a, the second common electrode 10b and the third common electrode 10c are all transparent ITO electrodes, or PEDOT/PSS, silver nanowires, and the like.
The transparent substrate 11 is a PET film having a film thickness of 100 μm.
Referring to fig. 3, the common electrodes in each region are arranged according to a certain path and connected to the transfer electrode, and the various leads are sequentially formed of metal (e.g., mo-al-mo, cu, etc.) leads, insulating layers, vias, and ITO leads from the substrate side.
The bottom sealing layer 71 and the top sealing layer 73 of the partition wall 7 can be made of conventional sealing glue; the pattern layer is provided with black, white or other colors by printing, ink-jet printing, photolithography, or the like.
Compared with the prior art, the utility model discloses a block type polychrome shows electrophoretic display device includes a plurality of display element, each display element includes base plate 91, set up drive backplate 9 on base plate 91, set up on drive backplate 9 and the sealed rubber envelope 5 that the annular set up, be located the three two double-phase adjacent electrophoretic display region in sealed rubber envelope 5, set up spacing wall 7 between two adjacent electrophoretic display region, set up three transfer printing electrode in the side of three electrophoretic display region respectively, set up above three electrophoretic display region and three common electrode connected with three transfer printing electrode respectively, transparent substrate 11 set up above the common electrode, protection film 1 and drive chip 8 set up above transparent substrate 11; the partition wall 7 is vertically disposed between the driving back plate 9 and the transparent substrate 11 or the protective film 1; the driving back plate 9 comprises a first driving block 21 corresponding to the first electrophoretic display area 2, a second driving block 31 corresponding to the second electrophoretic display area 3, a third driving block 41 corresponding to the third electrophoretic display area 4, a plurality of first connecting leads 23 connected between the first driving block 21 and the second driving block 31, a plurality of second connecting leads 24 connected between the first driving block 21 and the third driving block 41, a plurality of third connecting leads 33 connected between the second driving block 31 and the third driving block 41, a first driving lead 22 connected between the first driving block 21 and the driving chip 8, a second driving lead 32 connected between the second driving block 31 and the driving chip 8, a third driving lead 42 connected between the third driving block 41 and the driving chip 8, and a common lead connecting three common electrodes and the driving chip 8; the first electrophoretic display area 2, the second electrophoretic display area 3, and the third electrophoretic display area 4 each include an electrolyte layer 53 at the bottom and an electrophoretic layer 50 above the electrolyte layer 53, and the electrophoretic layer 50 includes at least a plurality of first electrophoretic particles 51 and second electrophoretic particles 52. Taking the example of displaying 4 colors (black and white, red and blue), if we use 2 different electrophoretic layers, one electrophoretic layer has two kinds of white and blue particles, and the other electrophoretic layer has three kinds of black and white and red particles. Thus, the particle concentration can be reduced by reducing the particle species. This approach, of course, has the disadvantage of not being able to display four colors at any location. Since the areas of the multicolor electronic paper where the colors are located are all predetermined, displaying the predetermined colors at the predetermined positions has high practical value. The refresh rate can be effectively increased due to the reduced particle concentration. Therefore, each display unit can use the least electrophoretic particle types, the particle concentration is reduced, the three electrophoretic layers are mutually combined to realize high-brightness color display of multiple colors, and the refresh rate is improved.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (10)
1. A block-type multicolor display electrophoretic display device, comprising: the display device comprises a plurality of display units, wherein each display unit comprises a substrate, a driving back plate arranged on the substrate, a sealing glue surrounding layer arranged on the driving back plate in an annular mode, three two-adjacent electrophoretic display areas positioned in the sealing glue surrounding layer, a partition wall arranged between the two adjacent electrophoretic display areas, three transfer printing electrodes respectively arranged on the sides of the three electrophoretic display areas, three common electrodes arranged above the three electrophoretic display areas and respectively connected with the three transfer printing electrodes, a transparent substrate arranged above the common electrodes, a protective film arranged above the transparent substrate and a driving chip; the partition wall is vertically arranged between the driving back plate and the transparent substrate or the protective film; the driving back plate comprises three driving blocks respectively corresponding to the three electrophoretic display areas, a connecting lead connected between two adjacent driving blocks, driving leads respectively connecting the three driving blocks and a driving chip, and a common lead connecting the three common electrodes and the driving chip; the three electrophoretic display regions comprise an electrolyte layer positioned at the bottom and an electrophoretic layer positioned above the electrolyte layer, and the electrophoretic layer comprises at least a plurality of first electrophoretic particles and a plurality of second electrophoretic particles.
2. A block-type multicolor display electrophoretic display device according to claim 1, wherein: the protective film comprises two layers of PET films and an ultraviolet-proof layer, an anti-dazzle layer and a water-proof layer which are arranged between the two layers of PET films.
3. A block-type multicolor display electrophoretic display device according to claim 1, wherein: the three electrophoretic display areas are respectively a first electrophoretic display area, a second electrophoretic display area and a third electrophoretic display area, wherein the width of the first electrophoretic display area is equal to the sum of the widths of the second electrophoretic display area and the third electrophoretic display area, and the second electrophoretic display area and the third electrophoretic display area are both positioned on the same side of the first electrophoretic display area.
4. A block-type multicolor display electrophoretic display device according to claim 3, wherein: the partition walls comprise a first partition wall arranged between the first electrophoretic display area and the second electrophoretic display area, a second partition wall arranged between the first electrophoretic display area and the third electrophoretic display area, and a third partition wall arranged between the second electrophoretic display area and the third electrophoretic display area.
5. A block-type multicolor display electrophoretic display device according to claim 1, wherein: the partition wall comprises a bottom sealing layer bonded with the driving back plate, a top sealing layer bonded with the protective film and a pattern layer arranged between the bottom sealing layer and the top sealing layer.
6. A block-type multicolor display electrophoretic display device according to claim 1, wherein: the partition wall comprises a bottom sealing layer bonded with the driving back plate, a top sealing layer bonded with the transparent substrate and a pattern layer arranged between the bottom sealing layer and the top sealing layer.
7. A block-type multicolor display electrophoretic display device according to claim 3, wherein: the three common electrodes are respectively a first common electrode arranged between the first electrophoresis display area and the transparent substrate, a second common electrode arranged between the second electrophoresis display area and the transparent substrate, and a third common electrode arranged between the third electrophoresis display area and the transparent substrate.
8. A block-type multicolor display electrophoretic display device according to claim 7, wherein: the first common electrode is connected with the driving chip through a first common electrode lead, and the second common electrode is connected with the third common electrode and is connected with the driving chip through a second common electrode lead.
9. A block-type multicolor display electrophoretic display device according to claim 1, wherein: the driving block is a TFT driving array.
10. A block-type multicolor display electrophoretic display device according to claim 1, wherein: the connecting leads include a plurality of TFT data leads and gate leads.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921154331.5U CN210051987U (en) | 2019-07-22 | 2019-07-22 | Block type multicolor display electrophoretic display device |
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| CN201921154331.5U CN210051987U (en) | 2019-07-22 | 2019-07-22 | Block type multicolor display electrophoretic display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320724A (en) * | 2019-07-22 | 2019-10-11 | 浙江富申科技有限公司 | A kind of block type multicolor displaying electrophoretic display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320724A (en) * | 2019-07-22 | 2019-10-11 | 浙江富申科技有限公司 | A kind of block type multicolor displaying electrophoretic display apparatus |
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Denomination of utility model: A block type multi-color display electrophoretic display device Granted publication date: 20200211 Pledgee: Zhejiang Jiashan rural commercial bank Limited by Share Ltd. science and technology sub branch Pledgor: ZHEJIANG FUSHEN TECHNOLOGY Co.,Ltd. Registration number: Y2024330001725 |