CN212781615U - Splicing electrophoretic display - Google Patents
Splicing electrophoretic display Download PDFInfo
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- CN212781615U CN212781615U CN202021410781.9U CN202021410781U CN212781615U CN 212781615 U CN212781615 U CN 212781615U CN 202021410781 U CN202021410781 U CN 202021410781U CN 212781615 U CN212781615 U CN 212781615U
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Abstract
The utility model provides a splicing electrophoretic display, from top to bottom include the upper protective layer of range upon range of connection, display layer and lower protective layer in proper order, the display layer is provided with the banding glue film all around, the upper protective layer is connected to the banding glue film upper end, the lower extreme is connected the lower protective layer, the display layer is formed by the open concatenation of a plurality of electrophoretic display piece, have the concatenation area on the display layer upper surface between the adjacent electrophoretic display piece, have the concatenation area down at the display layer lower surface between the adjacent electrophoretic display piece, the upper protective layer covers a plurality of electrophoretic display piece and the concatenation area on the electrophoretic display piece, the concatenation area under the lower protective layer cover; 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 utility model provides a concatenation electrophoretic display has better display effect.
Description
Technical Field
The utility model belongs to the technical field of electrophoretic display, concretely relates to concatenation electrophoretic display.
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
Not enough to prior art, the utility model provides a better concatenation electrophoretic display of display effect.
The utility model provides a splicing electrophoretic display, from top to bottom include upper protective layer, display layer and the lower protective layer of range upon range of connection in proper order, the display layer is provided with the banding glue film all around, the banding glue film upper end is connected the upper protective layer, the lower extreme is connected the lower protective layer, the display layer is formed by the open concatenation of a plurality of electrophoretic display piece, between adjacent electrophoretic display piece on the display layer upper surface has the concatenation area, between adjacent electrophoretic display piece on the display layer lower surface has the concatenation area down, the upper protective layer covers the concatenation area on a plurality of electrophoretic display piece and between the electrophoretic display piece, the lower protective layer covers the concatenation area down; 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 utility model provides a concatenation electrophoretic display has 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 view of a splicing electrophoretic display provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural view 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 solution of the present invention is further described in detail with reference to the following embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
Referring to fig. 2-6, the embodiment of the utility model provides a concatenation electrophoretic display, from top to bottom include range upon range of upper protective layer 5 of connection in proper order, show layer 7 and lower protective layer 6, show layer 7 is provided with banding glue film 3 all around, last protective layer 5 is connected to 3 upper ends of banding glue film, lower protective layer 6 is connected to the lower extreme, show layer 7 is formed by the open concatenation of a plurality of electrophoretic display piece 10a, splice region has on showing layer 7 upper surface between adjacent electrophoretic display piece 10a, splice region has down at show layer 7 lower surface between adjacent electrophoretic display piece 10 a. 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, the present invention further provides a method for manufacturing a splicing electrophoretic display, including the following steps:
forming 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 is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent processes that the present invention is used for are changed, or directly or indirectly used in other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (10)
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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021410781.9U CN212781615U (en) | 2020-07-16 | 2020-07-16 | Splicing electrophoretic display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021410781.9U CN212781615U (en) | 2020-07-16 | 2020-07-16 | Splicing electrophoretic display |
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| CN212781615U true CN212781615U (en) | 2021-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856833A (en) * | 2020-07-16 | 2020-10-30 | 广州奥翼电子科技股份有限公司 | Splicing electrophoretic display and preparation method thereof |
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- 2020-07-16 CN CN202021410781.9U patent/CN212781615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856833A (en) * | 2020-07-16 | 2020-10-30 | 广州奥翼电子科技股份有限公司 | Splicing electrophoretic display and preparation method thereof |
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