CN213276203U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN213276203U CN213276203U CN202021878694.6U CN202021878694U CN213276203U CN 213276203 U CN213276203 U CN 213276203U CN 202021878694 U CN202021878694 U CN 202021878694U CN 213276203 U CN213276203 U CN 213276203U
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Abstract
The utility model relates to a display panel, which comprises an array substrate and a color film substrate, wherein the array substrate comprises a first area and an edge wiring area arranged around the first area, the edge wiring area comprises a second area arranged on at least one side of the first area, the second area is provided with a driving circuit, the color film substrate is arranged in the first area, the color film substrate comprises a third area and a fourth area arranged around the third area, the third area is provided with a polarizer, the fourth area comprises a first sub-area arranged close to the second area and two second sub-areas arranged adjacent to the first sub-area, the display panel also comprises an electromagnetic shielding film, the electromagnetic shielding film comprises a first conductive film layer arranged on the driving circuit, the first conductive film layer is electrically connected with a grounding circuit on the array substrate, the first conductive film layer comprises a connecting part electrically connected with an electrostatic conducting wire layer, the connecting part is positioned at the intersection of the at least one second subregion and the first subregion. The utility model discloses still relate to a display device.
Description
Technical Field
The utility model relates to a show product preparation technical field, especially relate to a display panel and display device.
Background
With the improvement of Integration of vehicle-mounted applications, In-Cell TDDI (Touch and Display Driver Integration) technology is beginning to be applied to the Display market, and more customers also put forward the demand for TDDI technology products. However, in the verification process of the conventional TDDI product, it is found that according to the design and attachment scheme of the commonly used vehicle-mounted EMI Tape, signals of Touch sensors (Touch electrodes) are interfered, and the TDDI product has an undesirable phenomenon of edge Touch failure.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a display panel and display device solves the touch-control electrode production interference on electrically conductive shielding sticky tape to the array substrate for the problem of touch-control inefficacy appears at the product edge.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions: a display panel comprises an array substrate and a color film substrate arranged opposite to the array substrate, wherein the array substrate comprises a first area and an edge wiring area arranged at the periphery of the first area, the edge wiring area comprises a second area arranged at least one side of the first area, the second area is provided with a driving circuit, the orthographic projection of the color film substrate on the array substrate is positioned in the first area, the color film substrate comprises a third area and a fourth area arranged at the periphery of the third area, the third area is provided with a polarizer, the fourth area comprises a first sub-area arranged close to the second area and two second sub-areas arranged adjacent to the first sub-area,
the display panel further comprises an electromagnetic shielding film, the electromagnetic shielding film comprises a first conductive film layer arranged on the driving circuit, the first conductive film layer is electrically connected with a grounding circuit on the array substrate, the first conductive film layer comprises a connecting part connected with the color film substrate, and the connecting part is located at the intersection of at least one second subregion and the first subregion.
Optionally, the connecting portion is disposed at an intersection of each of the second sub-regions and the first sub-region.
Optionally, a concave portion is formed in an area between the two connection portions on one side of the first conductive film layer close to the color film substrate, and an edge of the concave portion is flush with an edge of the color film substrate.
Optionally, the connection portion is formed by extending a partial region of the first conductive film layer in a direction close to the color filter substrate.
Optionally, an electrostatic conducting wire layer is arranged on the fourth region, the electrostatic conducting wire layer includes a conductive silver adhesive arranged on the edge of one side of the first sub-region, which is far away from the polarizer, the conductive silver adhesive is connected with a grounding circuit on the array substrate, and the connecting portion is connected with the conductive silver adhesive in an attaching manner.
Optionally, the connecting portion is formed by extending the edge of the first conductive film layer on the side close to the color film substrate outward, and a first insulating film layer is disposed on the side of the connecting portion away from the first conductive film layer.
Optionally, an edge of the first insulating film layer on a side close to the polarizer is flush with an edge of the polarizer.
Optionally, one side of the first conductive film layer, which is far away from the connecting portion, is sequentially provided with a second insulating film layer and a second conductive film layer, the second conductive film layer is arranged on the flexible circuit board connected with the driving circuit, and the second conductive layer is used for connecting the copper-exposed area of the flexible circuit board with the backboard after the flexible circuit board is bent to the backlight side of the display panel.
Optionally, the first conductive film layer, the first insulating film layer, and the second insulating film layer are an integrated structure.
The embodiment of the utility model provides a still provide a display device, including foretell display panel.
The utility model has the advantages that: through the setting of electromagnetic shielding film in this application, increased the touch-control electric field with electromagnetic shielding film is at the distance in space, avoids the emergence of the phenomenon of touch-control inefficacy.
Drawings
FIG. 1 is a schematic view of a display panel;
FIG. 2 is a schematic view showing a state of an electromagnetic shield film on a display panel in the related art;
fig. 3 is a schematic view showing an electromagnetic shielding film on a display panel according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a second electromagnetic shielding film on the display panel according to an embodiment of the present invention;
fig. 5 is a schematic view showing a connection state of the conductive silver paste with the color film substrate and the array substrate.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the related art, as shown in fig. 1 and 2, a display panel includes an array substrate 1, a color filter substrate 2 and a polarizer 3, where the array substrate 1 includes a first region and a wiring region located at a periphery of the first region, an orthographic projection of the color filter substrate 2 on the array substrate 1 is located in the first region, the display panel includes an active display region and an inactive display region, the polarizer is disposed on the color filter substrate and located in the active display region, a common electrode is disposed on the array substrate 1, the common electrode is multiplexed as a touch electrode in a touch working state, the orthographic projection of the polarizer 3 on the array substrate 1 is located in a region where the common electrode is located, an EMI Tape 30 is attached along an edge of the EMI Tape 3, and a conductive adhesive in the conductive Tape 30 is attached to a CF (color filter) substrate 2 on a front side of an LCD (liquid crystal display), The IC (integrated drive circuit), Fanout area (metal routing area) and back plane GND (ground) on the array substrate 2 are adhered, so as to release the static electricity accumulated on the Panel through the conductive shielding tape 30 and the ground line; however, the conductive shielding Tape 30 is integrally attached to the edge of the polarizer 3, the conductive shielding Tape 30 is connected to the GND potential, the EMI Tape 30 is too far away from the outer VCOM (common electrode 20) serving as the Touch sensor, and the GND potential interferes with the Touch electric field, which results in the occurrence of Touch failure at the edge of the AA area (effective display area) close to the conductive shielding Tape.
In view of the above technical problems, this embodiment provides a display panel, as shown in fig. 3 and 4, which includes an array substrate 1 and a color filter substrate 2 disposed opposite to the array substrate 1, where the array substrate 1 includes a first region and an edge routing region located around the first region, the edge routing region includes a second region located on at least one side of the first region, the second region is provided with a driving circuit, an orthographic projection of the color filter substrate 2 on the array substrate 1 is located in the first region, the color filter substrate 2 includes a third region and a fourth region located around the third region, the third region is provided with a polarizer, the fourth region includes a first sub-region disposed near the second region and two second sub-regions disposed adjacent to the first sub-region,
the display panel further comprises an electromagnetic shielding film 10, the electromagnetic shielding film 10 comprises a first conductive film layer 101 arranged on the driving circuit, the first conductive film layer 101 is electrically connected with a grounding circuit on the array substrate 1, the first conductive film layer 101 comprises a connecting portion 102 connected with the color film substrate 2, and the connecting portion 102 is located at the intersection of at least one second subregion and the first subregion.
The electromagnetic shielding film 10 mainly functions as an electromagnetic shielding, and if the electromagnetic shielding film is entirely located on the array substrate 1, that is, there is no portion attached to the color film substrate 2, the electromagnetic shielding film and the touch electrode are both located on the array substrate 1, and there is no position relationship in other directions in space, and due to the arrangement of the ground line on the array substrate 1, the electromagnetic shielding film 10 does not interfere with the touch electrode, but in this way, the electrostatic discharge function of the color film substrate cannot be realized. In this embodiment, electromagnetic shielding is realized through the setting of the first conductive film layer 101 on the driving circuit, and simultaneously, the setting of the connecting portion 102 is used for leading out (the first conductive film layer 101 is connected with the ground circuit on the array substrate 1), and the connecting portion 102 is located at least one intersection between the second sub-region and the first sub-region, so that the electromagnetic shielding film is integrally attached along the edge of the polarizer 3, the interference of the electromagnetic shielding film on the touch electrode is improved, and the function of leading out static electricity can be realized.
It should be noted that the length of the connecting portion 102 in the first direction (the direction parallel to the direction from the first region to the second region, refer to the X direction in fig. 3) may be set according to actual needs.
In this embodiment, for example, the intersection of each second sub-region and the first sub-region is provided with the connecting portion 102, referring to fig. 3.
The connecting portions 102 are disposed at two ends of the first conductive film layer 101 in a second direction perpendicular to the first direction, so that electrostatic discharge is effectively realized.
In this embodiment, for example, a concave portion is formed in a region, located between two connection portions 102, of one side of the first conductive film layer 101 close to the color filter substrate 2, and an edge of the concave portion is flush with an edge of the color filter substrate 2, referring to fig. 3.
The edge of the concave portion is attached along the edge of the color film substrate 2, only the connecting portion 102 extends to the color film substrate 2 to achieve electrostatic discharge, the distance between the concave portion and the polarizer in space is enough to avoid interference on the touch electrode, electromagnetic shielding is effectively achieved, and meanwhile interference of the electromagnetic shielding film on the touch electrode is effectively avoided.
In this embodiment, for example, the connection portion 102 is formed by extending a partial region of the first conductive film layer 101 toward the color filter substrate 2.
The connecting portion 102 and the first conductive film layer 101 are of an integral structure, so that the structure is simplified, and the first conductive film layer is convenient to attach.
The arrangement of the connecting portion 102 is not limited to the above, and other structural forms of the connecting portion 102 in some embodiments of the present embodiment will be described below.
In this embodiment, as shown in fig. 4, an electrostatic conducting line layer is disposed on the fourth region, the electrostatic conducting line layer includes a conductive silver adhesive 20 disposed on an edge of one side of the first sub-region, which is away from the polarizer 3, the conductive silver adhesive 20 is connected to a ground line on the array substrate 1, and the connecting portion 102 is attached to the conductive silver adhesive 20.
The conductive silver paste 20 is connected to a ground line on the array substrate 1, and is used for electrostatic discharge of the display panel, and the distance of the color film substrate 2 in the first direction (refer to the X direction in fig. 3) is 1mm to 1.5mm, the conductive silver adhesive 20 is located at the edge of the side of the color film substrate 2 away from the polarizer, and the distance between the conductive silver adhesive 20 and the polarizer 3 is far enough not to interfere with the touch electrode, and in some embodiments, the area of the conductive silver adhesive 20 is small, for example, a plurality of silver paste dots may be arranged at intervals, and compared with the related art in which the electromagnetic shielding film is integrally attached to the edge of the polarizer 3, in this embodiment, the connection portion 102 is attached to the conductive silver paste 20, so that the distance between the touch electrode and the touch electrode is increased spatially, therefore, the connection between the connection portion 102 and the conductive silver paste does not interfere with the touch electrode.
The connecting portion 102 is attached to and connected with the conductive silver adhesive 20, and the first conductive film layer 101 is connected to a ground line in the array substrate 1, so that electrostatic discharge of the display panel is realized, which is equivalent to adding an electrostatic discharge loop, and the display panel is effectively prevented from being damaged due to static electricity.
It should be noted that fig. 5 shows a schematic connection state diagram of the conductive silver paste 20, the color film substrate 2 and the array substrate 1, and it should be noted that the proportional relationship of the structures of the array substrate, the color film substrate and the like in fig. 4 and 5 does not represent the structural proportional relationship in an actual product, and is only schematic, in actual use, the thicknesses of the array substrate 1 and the color film substrate 2 are very thin, and the distance between the array substrate 1 and the color film substrate 2 is also limited, so that the conductive silver paste 20 is disposed at the edge of the color film substrate 2 through a dispensing process, and a part of the conductive silver paste 20 is overlapped on the color film substrate 2, and a part of the conductive silver paste is located on the array substrate 1 and is electrically connected to a ground line on the array substrate 1.
In this embodiment, for example, the connection portion 102 is formed by extending the entire edge of the first conductive film layer 101 close to one side of the color filter substrate 2, and a first insulating film layer 103 is disposed on one side of the connection portion 102 away from the first conductive film layer 101.
The first insulating film layer 103 effectively prevents the electromagnetic shielding film 10 from interfering with the touch electrode, and the connection portion 102 can release static electricity from the display panel.
The connecting portion 102 is formed by extending the edge of the first conductive film layer 101 close to one side of the color film substrate 2, and a first insulating film layer 103 is disposed on one side of the connecting portion 102 away from the first conductive film layer 101. The first insulating layer is provided in accordance with the basic shape of the electromagnetic shielding film in the related art, but interference with the touch electrode is avoided, and electrostatic discharge of the display panel is realized.
For example, in some embodiments of the present embodiment, the first insulating layer is formed by extending the concave portion to a direction close to the color filter substrate 2, or the connecting portions 102 are disposed at two ends of the first conductive film layer 101 in a second direction perpendicular to the first direction, and the first insulating layer is disposed at a side of the connecting portion 102 far from the first conductive film layer 101.
In this embodiment, for example, the edge of the first insulating film layer 103 close to the polarizer 3 is flush with the edge of the polarizer 3.
In this embodiment, for example, a second insulating film 104 and a second conductive film 105 are sequentially disposed on a side of the first conductive film 101 away from the connecting portion 102, the second conductive film 105 is disposed on the flexible printed circuit 12 connected to the driving circuit, and the second conductive layer is used for connecting the copper exposed area of the flexible printed circuit 12 to the back panel after the flexible printed circuit 12 is bent to the backlight side of the display panel.
The driving circuit comprises an IC chip 111 and a package adhesive 112 for coating the IC chip 111, the first conductive film layer 101 is arranged on the driving circuit to realize electromagnetic shielding, the second conductive film layer 105 is arranged on the flexible circuit board 12 to realize electrostatic discharge through connection with a backboard while realizing electromagnetic shielding, and the second insulating layer 104 is arranged to avoid short circuit.
The second insulating layer prevents the first conductive film layer 101 from affecting the flexible circuit board, and plays an insulating and protecting role on the flexible circuit board 12.
In this embodiment, the first conductive film layer 101, the first insulating film layer 103, the second insulating film layer 104 and the second conductive film layer 105 are exemplarily of an integrated structure.
The first conductive film layer 101, the first insulating film layer 103, the second insulating film layer 104 and the second conductive film layer 105 are of an integral structure, so that the defects caused by multiple attaching are avoided.
The first conductive film layer 101 and the second conductive film layer 105 are formed of a conductive material, the first insulating film layer 103 and the second insulating film layer 104 are formed of an insulating material, and the first conductive film layer 101, the first insulating film layer 103, the second insulating film layer 104, and the second conductive film layer 105 may be manufactured as an integrated structure by using a mold.
The embodiment of the utility model provides a still provide a display device, including foretell display panel.
The display device further comprises a back plate, the array substrate comprises a driving circuit, the flexible circuit board connected with the driving circuit is connected with the main circuit board after being bent, one end of the second conductive film layer of the electromagnetic shielding film is connected with the copper exposed area of the flexible circuit board, the other end of the second conductive film layer is connected with the back plate, the back plate is used as a grounding wire, and the second conductive film layer is arranged to realize electrostatic discharge of the flexible circuit board.
The display device may be: the display device comprises any product or component with a display function, such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet personal computer and the like, wherein the display device further comprises a flexible circuit board, a printed circuit board and a back plate.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A display panel comprises an array substrate and a color film substrate arranged opposite to the array substrate, wherein the array substrate comprises a first area and an edge wiring area arranged around the first area, the edge wiring area comprises a second area arranged on at least one side of the first area, the second area is provided with a driving circuit, the orthographic projection of the color film substrate on the array substrate is arranged in the first area, the color film substrate comprises a third area and a fourth area arranged around the third area, the third area is provided with a polarizer, and the display panel is characterized in that the fourth area comprises a first sub-area arranged close to the second area and two second sub-areas arranged adjacent to the first sub-area;
the display panel further comprises an electromagnetic shielding film, the electromagnetic shielding film comprises a first conductive film layer arranged on the driving circuit, the first conductive film layer is electrically connected with a grounding circuit on the array substrate, the first conductive film layer comprises a connecting part connected to the color film substrate, and the connecting part is located at the intersection of at least one second subregion and the first subregion.
2. The display panel according to claim 1, wherein the connecting portion is provided at an intersection of each of the second sub-regions and the first sub-region.
3. The display panel according to claim 2, wherein a concave portion is formed in a region, between the two connection portions, of one side of the first conductive film layer close to the color filter substrate, and an edge of the concave portion is flush with an edge of the color filter substrate.
4. The display panel according to claim 1, wherein the connection portion is formed by extending a partial region of the first conductive film layer in a direction close to the color filter substrate.
5. The display panel according to claim 1, wherein an electrostatic conducting line layer is disposed on the fourth region, the electrostatic conducting line layer includes a conductive silver paste disposed on an edge of a side of the first sub-region away from the polarizer, the conductive silver paste is connected to a ground line on the array substrate, and the connecting portion is attached to the conductive silver paste.
6. The display panel according to claim 5, wherein the connecting portion is formed by extending an entire edge of one side of the first conductive film layer close to the color filter substrate outward, and a first insulating film layer is disposed on one side of the connecting portion away from the first conductive film layer.
7. The display panel according to claim 6, wherein an edge of the first insulating film layer on a side close to the polarizer is flush with an edge of the polarizer.
8. The display panel according to claim 6, wherein a second insulating film layer and a second conductive film layer are sequentially disposed on a side of the first conductive film layer away from the connecting portion, the second conductive film layer is disposed on the flexible circuit board connected to the driving circuit, and the second conductive film layer is used for connecting the copper exposed area of the flexible circuit board with the back plate after the flexible circuit board is bent to a backlight side of the display panel.
9. The display panel according to claim 8, wherein the first conductive film layer, the first insulating film layer, and the second insulating film layer are an integral structure.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878694.6U CN213276203U (en) | 2020-09-01 | 2020-09-01 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878694.6U CN213276203U (en) | 2020-09-01 | 2020-09-01 | Display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN213276203U true CN213276203U (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021878694.6U Active CN213276203U (en) | 2020-09-01 | 2020-09-01 | Display panel and display device |
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| CN (1) | CN213276203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024020861A1 (en) * | 2022-07-27 | 2024-02-01 | 京东方科技集团股份有限公司 | Display panel and display device |
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2020
- 2020-09-01 CN CN202021878694.6U patent/CN213276203U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024020861A1 (en) * | 2022-07-27 | 2024-02-01 | 京东方科技集团股份有限公司 | Display panel and display device |
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