CN111856833A - Splicing electrophoretic display and preparation method thereof - Google Patents
Splicing electrophoretic display and preparation method thereof Download PDFInfo
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- CN111856833A CN111856833A CN202010685615.8A CN202010685615A CN111856833A CN 111856833 A CN111856833 A CN 111856833A CN 202010685615 A CN202010685615 A CN 202010685615A CN 111856833 A CN111856833 A CN 111856833A
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- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000010410 layer Substances 0.000 claims abstract description 148
- 239000011241 protective layer Substances 0.000 claims abstract description 48
- 238000001962 electrophoresis Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000012945 sealing adhesive Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000003094 microcapsule Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
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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
- G02F1/165—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
- G02F1/166—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 characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 characterised by the electro-optical or magneto-optical effect by electrophoresis
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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
- G02F1/165—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
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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
- G02F1/165—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
- G02F1/16757—Microcapsules
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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
- G02F1/165—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
- G02F1/1685—Operation of cells; Circuit arrangements affecting the entire cell
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Abstract
The invention provides a splicing electrophoretic display and a preparation method thereof, the splicing electrophoretic display provided by the invention sequentially comprises an upper protective layer, a display layer and a lower protective layer which are connected in a stacking manner from top to bottom, an edge sealing adhesive layer is arranged on the periphery of the display layer, the upper end of the edge sealing adhesive layer is connected with the upper protective layer, the lower end of the edge sealing adhesive layer is connected with the lower protective layer, the display layer is formed by open splicing of a plurality of electrophoretic display blocks, an upper splicing area is arranged on the upper surface of the display layer between adjacent electrophoretic display blocks, a lower splicing area is arranged on the lower surface of the display layer between adjacent electrophoretic display blocks, the upper protective layer covers the plurality of electrophoretic display blocks and the upper splicing areas between the; the electrophoresis display block sequentially comprises a transparent conducting layer, an electrophoresis display layer and a driving back plate from top to bottom, the electrophoresis display layer comprises a plurality of display micro units, and electrophoresis liquid and electrophoresis particles dispersed in the electrophoresis liquid are packaged in the display micro units. The splicing electrophoretic display provided by the invention has a better display effect.
Description
Technical Field
The invention belongs to the technical field of electrophoretic displays, and particularly relates to a splicing electrophoretic display and a preparation method thereof.
Background
The electrophoretic electronic paper is a novel display material, is a bistable display technology based on an electrophoretic principle, has wide application, has the superior performances of ultralow energy consumption, thinness like paper, bending and book-like definition and the like, expresses characters and pictures through black and white and light and shade changes of colors, and has very similar display effect to real paper books. Due to the process problem, the size of the electronic paper display screen is limited, the yield of the large-size electronic paper display screen is low, and the cost is extremely high, so that the application and development of electronic paper display are greatly restricted.
The electronic paper display of current concatenation, as shown in figure 1, 1 both sides of the display area of every display screen 10 have the banding to glue regional 2, cause to have the banding that can't show between the adjacent display screen and glue regional, link up the effect very poor between the different display screens, unable better realization large-size screen display effect.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a splicing electrophoretic display with better display effect and a preparation method thereof.
The invention provides a spliced electrophoretic display, which sequentially comprises an upper protective layer, a display layer and a lower protective layer which are connected in a stacked manner from top to bottom, wherein edge sealing glue layers are arranged on the periphery of the display layer, the upper ends of the edge sealing glue layers are connected with the upper protective layer, the lower ends of the edge sealing glue layers are connected with the lower protective layer, the display layer is formed by splicing a plurality of electrophoretic display blocks in an open manner, an upper splicing area is arranged on the upper surface of the display layer between every two adjacent electrophoretic display blocks, a lower splicing area is arranged on the lower surface of the display layer between every two adjacent electrophoretic display blocks, the upper protective layer covers the electrophoretic display blocks and the upper splicing areas between the electrophoretic display blocks, and the lower protective layer covers the; electrophoresis display piece includes transparent conducting layer, electrophoresis display layer and drive backplate from top to bottom in proper order, the electrophoresis display layer includes a plurality of little units that show, it is in to show that the encapsulation has electrophoresis liquid and dispersion in the little unit electrophoresis particle in the electrophoresis liquid, transparent conducting layer and drive backplate are used for electrophoresis display layer both ends are applyed the signal of telecommunication, make the electrophoresis particle is in move in the electrophoresis liquid.
Preferably, the edges of the transparent conductive layer, the electrophoretic display layer and the driving back plate form a flush tangent plane, and adjacent electrophoretic display blocks are spliced by using the flush tangent plane as an opposite plane.
Preferably, the material of the electrophoretic display layer in the section is the same as the material of the middle part of the electrophoretic display layer.
Preferably, the electrophoretic display layer includes a conductive solid adhesive and a plurality of microcapsules distributed in the conductive solid adhesive, and a material of the electrophoretic display layer in the section includes the conductive solid adhesive.
Preferably, the display surface of the display layer includes a display area, the opposite two sides outside the display area are respectively provided with a driving chip, and the driving chip is arranged in the edge sealing adhesive layer or outside the edge sealing adhesive layer and is used for driving the display layer to display.
Preferably, the display layer is formed by splicing a plurality of groups of splicing units arranged along a first direction, each group of splicing units is formed by arranging 2 electrophoretic display blocks along a second direction, the first direction is perpendicular to the second direction, and the driving chips are arranged on two opposite sides of the display area parallel to the first direction.
Preferably, the display surface of the display layer includes a display area, the display surface of each electrophoretic display block includes a micro display area and a micro edge sealing area on one side of the display area, the micro display areas of the plurality of electrophoretic display blocks are spliced to form the display area, a driving chip is arranged in the micro edge sealing area, and the driving chip is used for driving the display area of the corresponding electrophoretic display block to display.
Preferably, the bottom surface of the electrophoretic display layer of each electrophoretic display block is provided with a plurality of sub-pixel driving electrodes and wires arranged below the plurality of sub-pixel driving electrodes, the display area covers the corresponding plurality of sub-pixel driving electrodes and the wires arranged below the plurality of sub-pixel driving electrodes, the plurality of sub-pixel driving electrodes are connected with the driving chip through the wires, and the wires are used for providing scanning signals and image signals for the electrophoretic display block.
Preferably, each electrophoresis display block is provided with a connecting line, the connecting line is arranged on one side with a micro edge sealing area in the electrophoresis display block, and the connecting line is sequentially connected with the transparent conducting layer, the electrophoresis display layer and the driving back plate.
Preferably, the upper protective layer is integrally formed and covers an upper surface of the display layer, and the lower protective layer is integrally formed and covers a lower surface of the display layer; or the like, or, alternatively,
The upper protective layer integrated into one piece covers the upper surface of display layer, lower protective layer includes concatenation protection piece and banding piece, concatenation protection piece covers concatenation area down, the banding piece with the lower extreme that the banding was glued is connected.
The invention also provides a preparation method of the spliced electrophoretic display, which comprises the following steps:
forming an initial electrophoretic display block comprising a transparent conductive layer, an electrophoretic display layer and a driving back plate from top to bottom in sequence;
cutting the edge of the initial electrophoretic display block to enable a section to be flat, wherein the material of the section is the same as that of the middle part of the electrophoretic display layer, and obtaining an electrophoretic display block;
the plurality of electrophoretic display blocks are spliced in an open mode to form an electrophoretic display layer, and adjacent electrophoretic display blocks are spliced by taking the flush tangent plane as an opposite plane;
covering an upper protective layer and a lower protective layer above and below the display layer, respectively;
and (4) after covering the upper protective layer and the lower protective layer, packaging by using a sealant to obtain the electrophoretic display.
The splicing electrophoretic display provided by the invention has a better display effect.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic structural diagram of a tiled electronic paper display provided in the prior art;
fig. 2 is a schematic structural diagram of a splicing electrophoretic display provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a splicing electrophoretic display provided in embodiment 2 of the present invention;
FIG. 4 is a schematic structural diagram of an electrophoretic display block according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view taken along line A-A in FIG. 2;
FIG. 6 is a schematic cross-sectional view taken along line B-B in FIG. 3;
Detailed Description
The technical solutions of the present invention are further described in detail with reference to specific examples so that those skilled in the art can better understand the present invention and can implement the present invention, but the examples are not intended to limit the present invention.
Referring to fig. 2 to 6, an embodiment of the present invention provides a spliced electrophoretic display, which sequentially includes, from top to bottom, an upper protective layer 5, a display layer 7, and a lower protective layer 6, which are connected in a stacked manner, an edge sealing adhesive layer 3 is disposed around the display layer 7, the upper end of the edge sealing adhesive layer 3 is connected to the upper protective layer 5, the lower end is connected to the lower protective layer 6, the display layer 7 is formed by open splicing of a plurality of electrophoretic display blocks 10a, an upper splicing region is disposed on the upper surface of the display layer 7 between adjacent electrophoretic display blocks 10a, and a lower splicing region is disposed on the lower surface of the display layer 7 between adjacent electrophoretic display. The open type splicing referred to in this embodiment means that there is no edge sealing glue for separating two adjacent electrophoretic display blocks 10a at the splicing position. For example, adjacent electrophoretic display blocks 10a may be connected and spliced with each other without a splicing gap; or a splicing gap smaller than 2mm exists between the adjacent electrophoretic display blocks 10a, but no edge sealing glue for separating the adjacent electrophoretic display blocks 10a exists in the splicing gap, so that seamless splicing of the display layers is realized.
In this embodiment, the upper protection layer 5 covers the plurality of electrophoretic display blocks 10a and the upper splicing region between the electrophoretic display blocks 10 a. The water vapor is prevented from entering the display layer 7 from the upper splicing area of the upper surface of the display layer 7, and the upper protection layer 5 has a protective sealing effect on the upper splicing area of the upper surface of the display layer 7. In this embodiment, the upper protection layer 5 covers the plurality of electrophoretic display blocks 10a means that the upper protection layer 5 completely covers the electrophoretic display blocks 10a, and may be a micro display area partially covering the plurality of electrophoretic display blocks 10 a.
In this embodiment, the lower protection layer 6 covers the lower splice region. The water vapor is prevented from entering the display layer 7 from the lower splicing area of the lower surface of the display layer 7, and the lower protective layer 6 has a protective sealing effect on the upper splicing area of the upper surface of the display layer 7.
In this embodiment, the electrophoretic display block 10a sequentially includes a transparent conductive layer 72, an electrophoretic display layer 71 and a driving back plate 73 from top to bottom, the electrophoretic display layer 71 includes a plurality of display micro-units, electrophoretic liquid and electrophoretic particles dispersed in the electrophoretic liquid are encapsulated in the display micro-units, and the transparent conductive layer 72 and the driving back plate 73 are used for applying electrical signals to two ends of the electrophoretic display layer 71 to enable the electrophoretic particles to move in the electrophoretic liquid. The display micro-unit referred to in this embodiment may be a microcapsule or a microcup. The transparent conductive layer 72 in this embodiment may be an ITO film, and the driving backplane may be a TFT.
In the splicing electrophoretic display of this embodiment, the display layer 7 is formed by open splicing of a plurality of electrophoretic display blocks 10a, and the adjacent electrophoretic display blocks 10a are not used for separating the edge sealing adhesive between them, so that the whole display layer 7 realizes a better large-screen display effect. Simultaneously, under the protection of banding glue film 3, upper protective layer 5 and lower protective layer 6, avoid steam by four side invasion on display layer, avoid steam by splice region and the regional invasion of last splice down. Further has better sealing function to the display layer.
Referring to fig. 3, 5 and 6, in a preferred embodiment, the edges of the transparent conductive layer 72, the electrophoretic display layer 71 and the driving back plate 73 form a flush cut surface 4, i.e. the cut surfaces 4 of the transparent conductive layer 72, the electrophoretic display layer 71 and the driving back plate 73 are arranged flush in the vertical direction. The adjacent electrophoretic display blocks 10a are spliced by using the flush tangent plane 4 as the opposite surface, so that a better splicing effect is realized.
Referring to fig. 3, 5 and 6, in a preferred embodiment, the material of the electrophoretic display layer 77 in the section 4 is the same as the material of the middle portion of the electrophoretic display layer 77, i.e., the material of the electrophoretic display layer 77 in the section is the same as the host material of the electrophoretic display layer 77. The display effect of the maximization of the electrophoretic display layer 77 is realized, and the large-screen display effect is good after splicing.
Referring to fig. 5 and 6, in a preferred embodiment, the electrophoretic display layer 71 includes a conductive solid adhesive 712 and a plurality of microcapsules 711 distributed in the conductive solid adhesive 712, and the material of the electrophoretic display layer 71 at the section 4 includes the conductive solid adhesive 712.
Referring to fig. 2 and 3, in a preferred embodiment, the display surface of the display layer 7 includes a display area, and two opposite sides outside the display area are respectively provided with a driving chip, and the driving chip is disposed in the edge bonding adhesive layer 3 or disposed outside the edge bonding adhesive layer 3, and is configured to drive the display layer 7 to display. In the present embodiment, the driving chip 92 may be disposed in the chip on film region 91 outside the edge bonding layer 3, and the chip on film region 91 is far away from the display region.
Referring to fig. 2, in a preferred embodiment, the display layer 7 is formed by arranging and splicing a plurality of groups of splicing units along a first direction c, each group of splicing units is formed by arranging 2 electrophoretic display blocks 10a along a second direction b, the first direction c is perpendicular to the second direction b, and the driving chips 92 are arranged outside the display area on two opposite sides parallel to the first direction c, so as to ensure that each electrophoretic display block 10a can be connected with the driving chip 92.
Referring to fig. 2, 3 and 4, in a preferred embodiment, the display surface of the display layer 7 includes a display area, the display surface of each electrophoretic display block 10a includes a micro display area 101 and a micro edge sealing area 102 on one side of the display area, the micro display areas 101 of a plurality of electrophoretic display blocks 10a are spliced to form the display area, a driving chip 92 is disposed in the micro edge sealing area 102, and the driving chip 92 is configured to drive the display area of the corresponding electrophoretic display block 10a to perform display. The edge bonding layer 3 in this embodiment may cover the micro edge bonding area 102 of the electrophoretic display block 10a after being encapsulated.
Referring to fig. 4, in a preferred embodiment, a plurality of sub-pixel driving electrodes and conductive lines disposed under the plurality of sub-pixel driving electrodes are disposed on a bottom surface of the electrophoretic display layer 71 of each electrophoretic display block 10a, the display region covers the corresponding plurality of sub-pixel driving electrodes and the conductive lines disposed under the plurality of sub-pixel driving electrodes, the plurality of sub-pixel driving electrodes are connected to the driving chip through the conductive lines, and the conductive lines are used for providing scanning signals and image signals for the electrophoretic display block 10 a. The conductive lines include scan lines 103 and signal lines 104 for supplying scan signals and image signals to the electrophoretic display block 10 a. The bottom layer wiring design is adopted, the circuit is hidden in the display area, the edge sealing area is in the non-wiring design, the non-wiring design of the joint of the adjacent electrophoresis display blocks 10a can be realized, and the large-screen display effect is better.
Referring to fig. 4, the driving backplane of the electrophoretic display block 10a of this embodiment is prepared in the following manner: the scanning line 103 is prepared on the substrate through a TFT process, then an insulating layer is prepared on the scanning line 103, and then the signal line 104 is prepared on the insulating layer, wherein the insulating layer can isolate the scanning line 103 and the signal line 104 from each other without interference. Then, a plurality of sub-pixel driving electrodes are formed on the prepared signal lines 104 again by the TFT process.
In a preferred embodiment, each electrophoretic display block 10a is provided with a connection line (not shown) disposed at one side of the electrophoretic display block 10a having the micro-edge sealing region, and the connection line sequentially connects the transparent conductive layer 72, the electrophoretic display layer 71, and the driving back plate 73. The bottom of the connecting line is connected with the driving back plate 73 in the edge sealing area, a through hole is formed in the electrophoretic display layer 71, and the other end of the connecting line penetrates through the through hole to be connected with the transparent conductive layer 72.
Referring to fig. 5, in a preferred embodiment, the upper protective layer 5 is integrally formed to cover the upper surface of the display layer 7, and the lower protective layer 6 is integrally formed to cover the lower surface of the display layer 7.
Referring to fig. 6, in another preferred embodiment, the upper protective layer 5 is integrally formed and covers the upper surface of the display layer 7, the lower protective layer 6 includes a splicing protective block 22b and a sealing block 22a, the splicing protective block 22b covers the lower splicing region, and the sealing block 22a is connected to the lower end of the sealing adhesive. The edge sealing rubber block 22a and the display layer 7 are fixed and sealed by a sealant 22 c.
Referring to fig. 2 to 6, an embodiment of the present invention further provides a method for preparing a splicing electrophoretic display, including the following steps:
forming an initial electrophoretic display of the transparent conductive layer 72, the electrophoretic display layer 771 and the driving back plate 73 in sequence from top to bottom;
And cutting the edge of the initial electrophoretic display block to flatten the section 4, wherein the material of the section is the same as that of the middle part of the electrophoretic display layer 71, so as to obtain the electrophoretic display block 10 a. Three sides of the electrophoretic display block are cut, so that the spliced tangent plane 4 is smoother, one side provided with the chip is not cut, and the micro edge sealing area 102 is reserved.
The electrophoretic display blocks 10a are spliced in an open mode to form the electrophoretic display layer 71, and adjacent electrophoretic display blocks 10a are spliced by taking the flush tangent plane as the opposite surface, so that the micro edge sealing area 102 is arranged outwards.
An upper protective layer 5 and a lower protective layer 6 are covered above and below the display layer 7, respectively;
and after covering the upper protective layer 5 and the lower protective layer 6, packaging the periphery of the display layer 7 by using a sealant to obtain the spliced electrophoretic display.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. The splicing electrophoretic display is characterized by comprising an upper protective layer, a display layer and a lower protective layer which are connected in a stacking manner from top to bottom in sequence, wherein a sealing edge glue layer is arranged around the display layer, the upper end of the sealing edge glue layer is connected with the upper protective layer, the lower end of the sealing edge glue layer is connected with the lower protective layer, the display layer is formed by open splicing of a plurality of electrophoretic display blocks, an upper splicing area is arranged on the upper surface of the display layer between every two adjacent electrophoretic display blocks, a lower splicing area is arranged on the lower surface of the display layer between every two adjacent electrophoretic display blocks, the upper protective layer covers the upper splicing area between the electrophoretic display blocks and the electrophoretic display blocks, and the lower protective layer covers the lower splicing area; electrophoresis display piece includes transparent conducting layer, electrophoresis display layer and drive backplate from top to bottom in proper order, the electrophoresis display layer includes a plurality of little units that show, it is in to show that the encapsulation has electrophoresis liquid and dispersion in the little unit electrophoresis particle in the electrophoresis liquid, transparent conducting layer and drive backplate are used for electrophoresis display layer both ends are applyed the signal of telecommunication, make the electrophoresis particle is in move in the electrophoresis liquid.
2. The tiled electrophoretic display of claim 1, wherein the edges of the transparent conductive layer, the electrophoretic display layer and the driving backplane form a flat cut surface, and adjacent electrophoretic display blocks are tiled with their flat cut surfaces as opposite surfaces.
3. The tiled electrophoretic display of claim 2, wherein the material of the electrophoretic display layer in the cut plane is the same as the material of the middle portion of the electrophoretic display layer.
4. The tiled electrophoretic display of claim 2, wherein the electrophoretic display layer comprises a conductive solid adhesive and a plurality of microcapsules distributed in the conductive solid adhesive, and the material of the electrophoretic display layer at the cut surface comprises the conductive solid adhesive.
5. The tiled electrophoretic display of claim 1, wherein the display surface of the display layer includes a display area, and driving chips are respectively disposed on two opposite sides outside the display area, and the driving chips are disposed in the edge-sealing adhesive layer or outside the edge-sealing adhesive layer for driving the display layer to display.
6. The tiled electrophoretic display of claim 5, wherein the display layer is formed by tiling a plurality of groups of tiles along a first direction, each group of tiles is formed by 2 electrophoretic display blocks along a second direction, the first direction is perpendicular to the second direction, and the driving chips are disposed outside the display area and on opposite sides parallel to the first direction.
7. The tiled electrophoretic display of claim 1, wherein the display surface of the display layer includes a display area, the display surface of each electrophoretic display block includes a micro display area and a micro edge sealing area on one side of the display area, the micro display areas of the plurality of electrophoretic display blocks are tiled to form the display area, and a driving chip is disposed in the micro edge sealing area and used for driving the display area of the corresponding electrophoretic display block to display.
8. The tiled electrophoretic display of claim 7, wherein the bottom surface of the electrophoretic display layer of each electrophoretic display block is provided with a plurality of sub-pixel driving electrodes and conductive lines disposed under the plurality of sub-pixel driving electrodes, the display area covers the corresponding plurality of sub-pixel driving electrodes and the conductive lines disposed under the plurality of sub-pixel driving electrodes, the plurality of sub-pixel driving electrodes are connected to the driving chip through the conductive lines, and the conductive lines are used for providing the electrophoretic display blocks with scanning signals and image signals.
9. The tiled electrophoretic display of claim 7, wherein each electrophoretic display block is provided with a connection line disposed at a side of the electrophoretic display block having the micro edge seal area, the connection line sequentially connecting the transparent conductive layer, the electrophoretic display layer, and the driving backplane.
10. The tiled electrophoretic display of claim 1, wherein the upper protective layer is integrally formed and covers an upper surface of the display layer and the lower protective layer is integrally formed and covers a lower surface of the display layer; or the like, or, alternatively,
the upper protective layer integrated into one piece covers the upper surface of display layer, lower protective layer includes concatenation protection piece and banding piece, concatenation protection piece covers concatenation area down, the banding piece with the lower extreme that the banding was glued is connected.
11. A method of preparing a tiled electrophoretic display, comprising the steps of:
forming an initial electrophoretic display block comprising a transparent conductive layer, an electrophoretic display layer and a driving back plate from top to bottom in sequence;
cutting the edge of the initial electrophoretic display block to enable a section to be flat, wherein the material of the section is the same as that of the middle part of the electrophoretic display layer, and obtaining an electrophoretic display block;
the plurality of electrophoretic display blocks are spliced in an open mode to form an electrophoretic display layer, and adjacent electrophoretic display blocks are spliced by taking the flush tangent plane as an opposite plane;
covering an upper protective layer and a lower protective layer above and below the display layer, respectively;
and (4) after covering the upper protective layer and the lower protective layer, packaging by using a sealant to obtain the electrophoretic display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685615.8A CN111856833A (en) | 2020-07-16 | 2020-07-16 | Splicing electrophoretic display and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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