CN113360020A - Display panel and display device - Google Patents
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- CN113360020A CN113360020A CN202110609341.9A CN202110609341A CN113360020A CN 113360020 A CN113360020 A CN 113360020A CN 202110609341 A CN202110609341 A CN 202110609341A CN 113360020 A CN113360020 A CN 113360020A
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
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- G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
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Abstract
The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to improve the anti-static damage capability of the display panel. The display panel includes: a substrate; the first conductive part and the second conductive part are positioned on the same side of the substrate and are insulated from each other; the orthographic projection of the first conductive part on the plane of the substrate is a first projection, the orthographic projection of the second conductive part on the plane of the substrate is a second projection, and the shortest distance between the first projection and the second projection is larger than 0; the electrostatic blocking part is positioned between the first projection and the second projection in the orthographic projection of the substrate, and comprises a plurality of first openings which are arranged along the direction of the first projection pointing to the second projection.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
With the continuous development of science and technology, more and more display devices are widely applied to daily life and work of people, and become an indispensable important tool for people at present. At present, with the continuous development of display technology, the requirements of consumers for display devices are continuously increased, and various displays are developed, such as liquid crystal displays, organic light emitting displays, and the like. On the basis, display technologies such as 3D display, touch display technology, curved display, and ultrahigh resolution display are also emerging.
In the manufacturing and using processes of the display panel, static electricity is inevitable. How to prevent static from spreading to the weak position in the display panel and improve the anti-static damage capability of the display panel becomes the research focus of related technicians.
[ summary of the invention ]
The embodiment of the invention provides a display panel and a display device, which are used for improving the anti-static damage capability of the display panel.
In one aspect, an embodiment of the present invention provides a display panel, including:
a substrate;
a first conductive portion and a second conductive portion, the first conductive portion and the second conductive portion being located on a same side of the substrate, the first conductive portion and the second conductive portion being insulated from each other; the orthographic projection of the first conductive part on the plane where the substrate is located is a first projection, the orthographic projection of the second conductive part on the plane where the substrate is located is a second projection, and the shortest distance between the first projection and the second projection is larger than 0;
the electrostatic blocking part is positioned between the first projection and the second projection in the orthographic projection of the electrostatic blocking part on the plane where the substrate is positioned, the electrostatic blocking part comprises a plurality of first openings, and the plurality of first openings are arranged along the direction of pointing to the second projection from the first projection.
In another aspect, an embodiment of the present invention provides a display device, including the display panel as described above.
According to the display panel and the display device provided by the embodiment of the invention, the electrostatic barrier part comprising the first opening is arranged in the display panel, and the first opening can enable different dielectric constants to be arranged at different positions in the electrostatic barrier part. During the preparation or use of the display panel, if static electricity is firstly conducted to one of the first conductive part and the second conductive part, during the conduction of the static electricity from one of the first conductive part and the second conductive part to the other one, the static electricity blocking part between the first conductive part and the second conductive part comprises at least two structures with different dielectric constants due to the arrangement of the first opening, namely, the medium between the first conductive part and the second conductive part is not uniform. Compared with a medium with a uniform dielectric constant, the static electricity blocking part in the embodiment of the invention can prolong the conduction path of static electricity conducted from one of the first conductive part and the second conductive part to the other, increase the conduction difficulty of the static electricity, weaken the influence degree of the static electricity on the first conductive part or the second conductive part, reduce the number of electronic components influenced by the static electricity in the display panel and improve the reliability of the display panel.
In addition, in the embodiment of the invention, the plurality of first openings are arranged in the static blocking portion, and the plurality of first openings are arranged along the direction that the first projection points to the second projection, so that in the process that static electricity propagates from one of the first conductive portion and the second conductive portion to the other, a plurality of dielectric nonuniform structures are arranged in a path that the static electricity propagates from one of the first conductive portion and the second conductive portion to the other, the number of the dielectric nonuniform structures can be increased, and the difficulty in conducting the static electricity can be further increased.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of one principle of static electricity conduction between a first conductor and a second conductor;
fig. 2 is a schematic top view of a partial area of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view along AA' of FIG. 2;
FIG. 4 is a schematic diagram of another display panel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another display panel according to an embodiment of the present invention;
FIG. 6 is another schematic cross-sectional view along AA' of FIG. 2;
FIG. 7 is a schematic top view of a partial area of another display panel according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view along BB' of FIG. 7;
FIG. 9 is a schematic top view of a partial area of a display panel according to another embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view taken along line CC' of FIG. 9;
FIG. 11 is a schematic top view illustrating a partial area of a display panel according to another embodiment of the present invention;
FIG. 12 is a schematic top view of a partial area of a display panel according to another embodiment of the present invention;
FIG. 13 is a schematic top view of a partial area of a display panel according to another embodiment of the present invention;
FIG. 14 is a schematic top view of a partial area of a display panel according to yet another embodiment of the present invention;
FIG. 15 is a schematic top view of a partial area of a display panel according to yet another embodiment of the present invention;
FIG. 16 is a schematic top view illustrating a partial area of a display panel according to another embodiment of the present invention;
fig. 17 is a schematic diagram of a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used to describe conductive portions in embodiments of the present invention, these conductive portions should not be limited to these terms. These terms are only used to distinguish the conductive portions from each other. For example, the first conductive portion may also be referred to as the second conductive portion, and similarly, the second conductive portion may also be referred to as the first conductive portion, without departing from the scope of embodiments of the present invention.
As described in the background section, how to effectively prevent the electronic devices inside the display panel from being interfered by static electricity is a research focus of researchers. In the process of implementing the embodiment of the invention, the inventor researches and discovers that: referring to fig. 1, fig. 1 is a schematic diagram illustrating a principle of static electricity conduction between a first conductor 1 'and a second conductor S, wherein a static current I is generated in the first conductor 1' when the static electricity propagates on the first conductor 1ESDStatic current IESDThe presence of (a) generates a magnetic field which is centered on the first conductor 1' and radiates outwards, thereby causing the second conductor S within the coverage of the magnetic field to be also affected by static electricity. In fig. 1, R represents a distance between the second conductor S and the first conductor 1', and H represents a magnetic field intensity of a magnetic field in a region where the second conductor S is located.
At present, a display panel is provided with a plurality of electronic devices such as wires and electrodes. In addition, in the production and use processes of the display panel, contact-type operations such as operation and transportation of the production equipment are inevitable, and static electricity is likely to be generated at the edge of the display panel. After the static electricity enters a certain conductor at the edge position of the display panel, it will be conducted layer by layer to the inner part of the display panel through the process as described above, resulting in that various electronic devices inside the display panel are exposed to the threat of the static electricity.
In view of the above, an embodiment of the invention provides a display panel, as shown in fig. 2 and fig. 3, fig. 2 is a schematic top view of a partial area of the display panel provided by the embodiment of the invention, and fig. 3 is a schematic cross-sectional view along AA' of fig. 2, the display panel includes a substrate 1, a first conductive portion 21, a second conductive portion 22, and an electrostatic blocking portion 3.
As shown in fig. 3, the first conductive portion 21 and the second conductive portion 22 are located on the same side of the substrate 1. In the embodiment of the present invention, the first conductive portion 21 and the second conductive portion 22 are insulated from each other. The orthographic projection of the first conductive part 21 on the plane of the substrate 1 is a first projection, and the orthographic projection of the second conductive part 22 on the plane of the substrate 1 is a second projection. The shortest distance D between the first projection and the second projection is larger than 0. I.e. there is a gap between the first projection and the second projection. For example, as shown in fig. 3, the first conductive part 21 and the second conductive part 22 may be disposed in the same layer, and both may be patterned from the same film layer during the manufacturing process. The first conductive portion 21 and the second conductive portion 22 do not overlap each other in a direction perpendicular to the plane of the substrate 1.
As shown in fig. 2 and 3, an orthogonal projection of the electrostatic blocking section 3 on the plane of the substrate 1 is located between the first projection and the second projection. In the embodiment of the present invention, the electrostatic blocking section 3 includes a plurality of first openings 301, and the plurality of first openings 301 are arranged along a direction in which the first projection points to the second projection.
In the embodiment of the present invention, the first opening 301 may be provided to have different dielectric constants at different positions in the electrostatic blocking part 3. During the manufacturing or using process of the display panel, as shown in fig. 2 and 3, if static electricity is first conducted to one of the first conductive portion 21 and the second conductive portion 22, during the conduction of static electricity from one to the other, the static electricity blocking portion 3 located between the two includes at least two structures with different dielectric constants due to the arrangement of the first opening 301, that is, the medium between the two will become non-uniform. Compared with a medium with a uniform dielectric constant, the electrostatic blocking part 3 in the embodiment of the invention can prolong the conduction path of static electricity conducted from one of the first conductive part 21 and the second conductive part 22 to the other, increase the conduction difficulty of the static electricity, weaken the influence degree of the static electricity on the first conductive part 21 or the second conductive part 22, reduce the number of electronic components influenced by the static electricity in the display panel, and improve the reliability of the display panel.
Furthermore, in the embodiment of the present invention, the plurality of first openings 301 are formed in the static electricity blocking portion 3, and the plurality of first openings 301 are arranged in the direction in which the first projection points to the second projection, so that in the process of transmitting static electricity from one of the first conductive portion 21 and the second conductive portion 22 to the other, the plurality of dielectric nonuniform structures are provided in the path in which static electricity is transmitted from one of the first conductive portion 21 and the second conductive portion 22 to the other, thereby increasing the number of dielectric nonuniform structures and further increasing the difficulty of transmitting static electricity.
Illustratively, the material of the first conductive portion 21 and the second conductive portion 22 includes a metal and/or a transparent metal oxide. The first conductive part 21 and the second conductive part 22 comprise traces and/or electrodes in the display panel.
Alternatively, the signals transmitted by the first conductive part 21 and the second conductive part 22 may be signals for display of the display panel. For example, the first conductive part 21 and the second conductive part 22 may be used as scan lines to transmit scan signals, or they may be used as data lines to transmit data signals, or one of the first conductive part 21 and the second conductive part 22 may be used as scan lines and the other may be used as data lines. Alternatively, in the embodiment of the present invention, the first conductive part 21 and/or the second conductive part 22 may be electrically connected to a peripheral display circuit including a scan driving circuit and a data driving circuit, so as to transmit a control signal required for controlling the peripheral display circuit including the scan driving circuit and the data driving circuit to operate.
Exemplarily, as shown in fig. 4, fig. 4 is a schematic diagram of another display panel provided in the embodiment of the present invention, a non-display area NA of the display panel includes a scan driving circuit 41, and the scan driving circuit 41 includes a plurality of cascaded shift register units 410. The shift register unit 410 is electrically connected to the sub-pixel 5 through the scan line 42 located in the display area AA. In the embodiment of the present invention, both the first conductive part 21 and the second conductive part 22 may be electrically connected to the shift register unit 410, and the first conductive part 21 and the second conductive part 22 may be used as either or both of a clock control signal line and a fixed level signal line. Based on the display panel having the structure shown in fig. 4, in the embodiment of the invention, by providing the static electricity blocking portion 3 between the first conductive portion 21 and the second conductive portion 22, if static electricity is first conducted to the first conductive portion 21, in the process of conducting static electricity from the first conductive portion 21 to the second conductive portion 22, the static electricity blocking portion 3 can extend the conducting path of static electricity conducted from the first conductive portion 21 to the second conductive portion 22, increase the conducting difficulty of static electricity, weaken the influence degree of static electricity on the second conductive portion 22, further weaken the influence of static electricity on electronic components such as the shift register unit 410 and the scan line 42 connected to the second conductive portion 22, and be beneficial to ensuring the reliability of electronic components such as signal lines for display in the display panel, and ensuring that the display panel has good display effect.
Besides, the signals transmitted by the first conductive part 21 and the second conductive part 22 may be other functional signals besides display. For example, when the display panel has a touch function, the display panel provided in the embodiment of the present invention further includes a touch electrode, and the first conductive portion 21 and the second conductive portion 22 may be used as a touch electrode or a touch signal line for transmitting a touch signal in the embodiment of the present invention. Of course, in the embodiment of the present invention, one of the first conductive part 21 and the second conductive part 22 may be used for transmitting a touch signal, and the other may be used for transmitting a display signal.
Optionally, as shown in fig. 5, fig. 5 is a schematic view of another display panel according to an embodiment of the present invention, where the display panel includes touch electrodes, and the touch electrodes include a first touch electrode 61 and a second touch electrode 62. At least a portion of the first touch electrode 61 and the second touch electrode 62 are located in the display area AA of the display panel. The first touch electrode 61 includes a first sub-touch electrode 611 and a first connection portion 612 electrically connected to each other. The second touch electrode 62 includes a second sub-touch electrode 621 and a second connection portion 622 electrically connected to each other. The first connection portion 612 and the first sub-touch electrode 611 are arranged in different layers, and are electrically connected through a via hole in an insulating layer located between the first connection portion and the first sub-touch electrode. In the embodiment of the present invention, at least one of the first conductive part 21 and the second conductive part 22 may be made of metal, so that the first conductive part 21 is electrically connected to the first touch electrode 61 or the second touch electrode 62, and the second conductive part 22 is electrically connected to the first touch electrode 61 or the second touch electrode 62. Fig. 5 is a schematic diagram of electrically connecting the first conductive part 21 and the first touch electrode 61, and electrically connecting the second conductive part 22 and the second touch electrode 62.
When the display panel is used for touch control, as shown in fig. 5, the touch chip 7 provides a driving signal to the first touch electrode 61 through the first conductive part 21, and the second touch electrode 62 is coupled to generate a sensing signal under the action of the driving signal of the first touch electrode 61. When a touch operation occurs, the capacitance between the first touch electrode 61 and the second touch electrode 62 changes, causing a change in the signal on the second touch electrode 62, the change in the signal on the second touch electrode 62 is transmitted to the touch chip 7 through the second conductive part 22, and the touch chip 7 determines the position where the touch occurs based on the change in the signal.
When the first conductive part 21 and/or the second conductive part 22 are arranged in the structure shown in fig. 5, that is, the first conductive part 21 and/or the second conductive part 22 are electrically connected to the touch electrode, at the intersection position of the first touch electrode 61 and the second touch electrode 62, since the second connection part 622 overlaps with the first connection part 612 to form a capacitance, static electricity is easily stored at this position, which becomes a weak position of static electricity in the display panel. In the embodiment of the present invention, the electrostatic blocking portion 3 is disposed between the first conductive portion 21 and the second conductive portion 22, which are used as the touch signal lines, so that the probability that static electricity enters the second conductive portion 22 through the first conductive portion 21 can be reduced, the probability that static electricity enters the second conductive portion 622 through the second conductive portion 22 can be reduced, the amount of static electricity stored by the overlap capacitance between the first connecting portion 612 and the second connecting portion 622 can be reduced, the probability that the insulating layer between the first connecting portion 612 and the second connecting portion 622 is broken down by static electricity can be reduced, and the touch reliability of the display panel can be improved.
Alternatively, as shown in fig. 4 and 5, in the embodiment of the present invention, at least one of the first conductive part 21 and the second conductive part 22 may be located in the non-display area NA of the display panel, and the static blocking part 3 may be located in the non-display area NA of the display panel. The non-display area NA is located on a side of the display area AA near an edge of the display panel. Since static electricity is generally introduced at the edge of the display panel, the embodiment of the present invention disposes the static electricity blocking portion 3 at a position close to the source of the introduction of static electricity, which is more advantageous to eliminate static electricity at the source.
For example, in addition to using the first conductive part 21 and/or the second conductive part 22 as the touch signal line, in an alternative embodiment of the present invention, at least one of the first conductive part 21 and the second conductive part 22 may be connected to a fixed potential. The fixed potential may be a fixed high-level potential VGH or a fixed low-level potential VGL. For example, in the embodiment of the present invention, the first conductive part 21 and/or the second conductive part 22 may be disposed between a first touch signal line and a second touch signal line, wherein the first touch signal line is a signal line electrically connected to the first touch electrode 61, and the second touch signal line is a signal line electrically connected to the second touch electrode 62. With such an arrangement, the first conductive part 21 or the second conductive part 22 can be used to shield the mutual interference between the first touch signal line and the second touch signal line transmitting different touch signals, which is beneficial to improving the accuracy of the touch performance.
Alternatively, the embodiment of the present invention may further enable the first conductive portion 21 and/or the second conductive portion 22 to be used as a ground trace in the display panel.
In the embodiment of the present invention, the electrostatic blocking portion 3 may have various design modes, which are described below:
in one embodiment, as shown in fig. 2 and 3, the electrostatic blocking portion 3 may include a first dielectric layer 31, and the material of the first dielectric layer 31 includes silicon oxynitride. The first dielectric layer 31 includes the first opening 301 as described above. For example, in the case of manufacturing the display panel having the structure shown in fig. 2 and 3, the embodiment of the invention may first form the first dielectric layer 31 through a film forming process such as coating, sputtering, or evaporation, and then etch the first dielectric layer 31 to form the first opening 301 on the surface of the first dielectric layer 31 away from the substrate 1. After the first opening 301 is prepared, the embodiment of the invention may not fill the first opening 301 with other materials, that is, make the first opening 301 have air therein. Since the dielectric constant of air is different from that of the first dielectric layer 31, the electrostatic blocking part 3 having at least two different dielectric constant structures can be realized.
Alternatively, as shown in fig. 6, fig. 6 is another schematic cross-sectional view along AA' of fig. 2, and the first opening 301 may penetrate through the first dielectric layer 31 along the thickness direction of the display panel according to an embodiment of the present invention. By setting the depth of the first opening 301 to be larger, the embodiment of the present invention can increase the content of another dielectric structure (such as air) having a dielectric constant different from that of the first dielectric layer 31, so that the structure of the static electricity blocking portion 3 including at least two structures having different dielectric constants is more complicated, and the difficulty of conducting static electricity from one of the first conductive portion 21 and the second conductive portion 22 to the other is increased.
In the preparation of the display panel having the structure shown in fig. 6, when the first dielectric layer 31 is etched to form the first opening 301 penetrating through the first dielectric layer 31, the embodiment of the invention may control the etching rate and/or the etching time so that the first dielectric layer 31 is properly etched to a layer below the first dielectric layer 31, so that the first opening 301 penetrates through the first dielectric layer 31.
Exemplarily, in the embodiment of the present invention, as shown in fig. 7 and fig. 8, fig. 7 is a schematic top view of a partial region of another display panel provided in the embodiment of the present invention, fig. 8 is a schematic cross-sectional view along BB' of fig. 7, and the display panel further includes an insulating layer 4, and the insulating layer 4 covers the first conductive portion 21 and the second conductive portion 22. In the embodiment of the present invention, the insulating layer 4 and the electrostatic blocking portion 3 may be formed by the same process, so that the insulating layer 4 located between the first conductive portion 21 and the second conductive portion 22 is reused as the electrostatic blocking portion 3. So set up, be favorable to reducing the rete quantity in the display panel, attenuate display panel thickness.
In manufacturing the display panel having the structure shown in fig. 7 and 8, the embodiment of the present invention may manufacture the insulating layer 4 covering the first conductive part 21 and the second conductive part 22 by using a film forming process including coating, evaporation, or sputtering. The first opening 301 described above is then formed by etching the insulating layer 4 between the first conductive part 21 and the second conductive part 22.
Exemplarily, as shown in fig. 9 and fig. 10, fig. 9 is a schematic top view of a partial region of another display panel according to an embodiment of the present invention, and fig. 10 is a schematic cross-sectional view taken along CC of fig. 9, in an embodiment of the present invention, the electrostatic blocking section 3 further includes a second dielectric layer 32, and the second dielectric layer 32 may be another dielectric material having a dielectric constant different from that of air and the first dielectric layer 31. As shown in fig. 9 and 10, at least a portion of the second dielectric layer 32 is located in the first opening 301. In manufacturing the display panel having the structure shown in fig. 9 and 10, the embodiment of the invention may first manufacture the first dielectric layer 31 through a film forming process including coating, evaporation, or sputtering, and then form the first opening 301 by etching the first dielectric layer 31 between the first conductive portion 21 and the second conductive portion 22. Then, the second dielectric layer 32 is filled in the first opening 301 by a film forming process such as coating, evaporation, or sputtering. Illustratively, as shown in fig. 9 and 10, in addition to filling the first opening 301, the embodiment of the present invention may further allow the second dielectric layer 32 to cover the first dielectric layer 31 at a position where the first opening 301 is not disposed. With this arrangement, in the process of conducting static electricity from one of the first conductive part 21 and the second conductive part 22 to the other, the static electricity conducted in the thickness direction of the display panel will pass through the structures having two different dielectric constants, and thus the difficulty of conducting the static electricity will be increased.
For example, the embodiment of the present invention may design the first opening 301 as a stripe structure having a dimension in a certain direction that is significantly larger than the dimensions in other directions. When the first opening is designed to have a stripe structure, the extending direction of the first opening 301 may be parallel to the extending direction of the first conductive portion 21, and/or the extending direction of the first opening 301 may be parallel to the extending direction of the second conductive portion 22. That is, the length of the first opening 301 in the extending direction of the first conductive portion 21 and/or the second conductive portion 22 is made larger than the length thereof in the other direction. Fig. 2 is a schematic view showing that the first opening 301 is parallel to the extending directions of the first conductive part 21 and the second conductive part 22.
Optionally, in the embodiment of the present invention, the length of the first opening 301 may be greater than or equal to the length of the first conductive portion 21. And/or, the length of the first opening 301 is greater than or equal to the length of the second conductive part 22. Fig. 2 is a schematic diagram illustrating that the lengths of the first opening 301, the first conductive portion 21 and the second conductive portion 22 are equal. With this arrangement, the static electricity blocking portion 3 including the first opening 301 can wrap the first conductive portion 21 and/or the second conductive portion 22 from multiple positions, so as to improve the difficulty of conducting static electricity from multiple positions along multiple different paths, and further improve the reliability of the display panel.
Alternatively, in the embodiment of the present invention, the length of the first opening 301 may be smaller than the length of the first conductive portion 21 or the second conductive portion 22. As shown in fig. 11, fig. 11 is a schematic top view of a partial region of another display panel according to an embodiment of the present invention, wherein a distance G exists between two adjacent first openings 301 along an extending direction of the first conductive portion 21, and the distance G at least partially overlaps another first opening 301 along a direction from the first conductive portion 21 to the second conductive portion 22. This arrangement makes it possible to provide a structure having at least two dielectric constants both in the extending direction of the first conductive portion 21 and in the direction in which the first conductive portion 21 is directed to the second conductive portion 22, and to increase the degree of nonuniformity of the media arranged in the two directions.
Alternatively, when the length of the first opening 301 is set to be shorter, as shown in fig. 12, fig. 12 is a schematic top view of a partial region of another display panel provided in the embodiment of the present invention, a second opening 302 may be further provided in the first dielectric layer 31, the second opening 302 is communicated with the first opening 301, and the extending direction of the second opening 302 is different from the extending direction of the first opening 301. With this arrangement, the content of the material having another dielectric constant can be increased in a certain space along the extending direction of the first conductive portion 21 or the second conductive portion 22, and the medium of the electrostatic blocking portion 3 can be made more nonuniform. Moreover, the provision of the second opening 302 may increase the degree of unevenness of the medium in the extending direction of the second opening 302 by the electrostatic blocking section 3, and may increase the difficulty of conduction of static electricity from a plurality of directions.
It should be noted that the first opening 301 and the second opening 302 shown in fig. 12 are perpendicular to each other only for illustration, and in the embodiment of the present invention, the included angle between the first opening 301 and the second opening 302 is not limited as long as the first opening 301 and the second opening 302 intersect. For example, as shown in fig. 13, fig. 13 is a schematic top view of a partial region of another display panel according to an embodiment of the present invention, and an included angle between the second opening 302 and the first opening 301 may be a non-right-angle included angle.
When the first opening 301 and the second opening 302 extending in different directions are provided in the electrostatic blocking portion 3, various ways are provided in the embodiment of the present invention, as shown in fig. 12 and 13, the embodiment of the present invention may connect two ends of the same first opening 301 with two second openings 302, respectively.
Alternatively, the embodiment of the present invention may also have one first opening 301 connected to at most one second opening 302. Fig. 14 is a schematic top view of a partial area of another display panel according to an embodiment of the present invention, as shown in fig. 14, a portion of the first openings 301 is connected to one of the second openings 302, and another portion of the first openings 301 is not connected to the second openings 302. To illustrate the embodiment of the present invention more clearly, in fig. 14, the first opening connected to one second opening 302 is denoted as 3011, and the first opening not connected to the second opening 302 is denoted as 3012. As shown in fig. 14, the first opening 3011 and the first opening 3012 are aligned in the extending direction of the first conductive portion 21. This arrangement also increases the degree of dielectric nonuniformity of the electrostatic barrier section 3, and increases the difficulty of electrostatic conduction between the first conductive section 21 and the second conductive section 22.
Alternatively, as shown in fig. 15, fig. 15 is a schematic top view of a partial area of another display panel according to an embodiment of the present invention, when designing the first opening 301, the embodiment of the present invention may make an orthogonal projection of the first opening 301 on a plane where the substrate 1 is located be a ring shape, and make a plurality of first openings 301 be arranged along an extending direction of the first conductive portion 21 or the second conductive portion 22. Illustratively, as shown in fig. 15, two adjacent first openings 301 arranged along the extending direction of the first conductive portion 21 may be communicated with each other to increase the area ratio of the first openings 301 in the electrostatic blocking portion 3, increase the content of another material having a dielectric constant different from that of the first dielectric layer 31, and increase the dielectric complexity of the electrostatic blocking portion 3. Alternatively, as shown in fig. 15, the first opening 301 may be in an axisymmetric pattern, the symmetry axis of which is parallel to the extending direction of the first conductive portion 21.
For example, in a direction in which the edge of the display panel points to the center of the display panel, the embodiment of the invention may gradually decrease the density of the first openings 301. As shown in fig. 16, fig. 16 is a schematic top view of a partial area of another display panel according to an embodiment of the present invention, wherein the shortest distance between the first conductive portion 21 and the edge E of the display panel is smaller than the shortest distance between the second conductive portion 22 and the edge E of the display panel. Since static electricity is generally introduced at the edge of the display panel, the first openings 301 with higher density are disposed near the source of the introduced static electricity, so that the dielectric in the static electricity blocking portion 3 is more non-uniform, which is more beneficial to eliminate static electricity at the source.
It should be understood that the shape of the first opening 301 shown in fig. 16 is designed to be a long strip shape only for illustration, and in the actual design process of the display panel, the first opening 301 may be designed with density difference according to any one or more of the cases in fig. 11, fig. 12, fig. 13, fig. 14, and fig. 15, and will not be described one by one here.
As shown in fig. 17, fig. 17 is a schematic view of a display device according to an embodiment of the present invention, where the display device includes the display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 17 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
According to the display device provided by the embodiment of the invention, the electrostatic barrier part comprising the first opening is arranged in the display panel, and the first opening can enable different dielectric constants to be arranged at different positions in the electrostatic barrier part. During the preparation or use of the display panel, if static electricity is firstly conducted to one of the first conductive part and the second conductive part, during the conduction of the static electricity from one of the first conductive part and the second conductive part to the other one, the static electricity blocking part between the first conductive part and the second conductive part comprises at least two structures with different dielectric constants due to the arrangement of the first opening, namely, the medium between the first conductive part and the second conductive part is not uniform. Compared with a medium with a uniform dielectric constant, the static electricity blocking part in the embodiment of the invention can prolong the conduction path of static electricity conducted from one of the first conductive part and the second conductive part to the other, increase the conduction difficulty of the static electricity, weaken the influence degree of the static electricity on the first conductive part or the second conductive part, reduce the number of electronic components influenced by the static electricity in the display panel and improve the reliability of the display panel.
In addition, in the embodiment of the invention, the plurality of first openings are arranged in the static blocking portion, and the plurality of first openings are arranged along the direction that the first projection points to the second projection, so that in the process that static electricity propagates from one of the first conductive portion and the second conductive portion to the other, a plurality of dielectric nonuniform structures are arranged in a path that the static electricity propagates from one of the first conductive portion and the second conductive portion to the other, the number of the dielectric nonuniform structures can be increased, and the difficulty in conducting the static electricity can be further increased.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (12)
1. A display panel, comprising:
a substrate;
a first conductive portion and a second conductive portion, the first conductive portion and the second conductive portion being located on a same side of the substrate, the first conductive portion and the second conductive portion being insulated from each other; the orthographic projection of the first conductive part on the plane where the substrate is located is a first projection, the orthographic projection of the second conductive part on the plane where the substrate is located is a second projection, and the shortest distance between the first projection and the second projection is larger than 0;
the electrostatic blocking part is positioned between the first projection and the second projection in the orthographic projection of the electrostatic blocking part on the plane where the substrate is positioned, the electrostatic blocking part comprises a plurality of first openings, and the plurality of first openings are arranged along the direction of pointing to the second projection from the first projection.
2. The display panel according to claim 1,
the density of the first openings is gradually decreased in a direction in which an edge of the display panel is directed to a center of the display panel.
3. The display panel according to claim 1,
the electrostatic blocking portion comprises a first dielectric layer comprising a plurality of the first openings;
the first opening penetrates through the first dielectric layer along the thickness direction of the display panel.
4. The display panel according to claim 3,
the extending direction of the first opening is parallel to the extending direction of the first conductive part, and/or the extending direction of the first opening is parallel to the extending direction of the second conductive part.
5. The display panel according to claim 4,
the first dielectric layer further comprises a second opening, the second opening is communicated with the first opening, and the extending direction of the second opening is different from the extending direction of the first opening.
6. The display panel according to claim 3,
the display panel further comprises an insulating layer, the insulating layer covers the first conductive part and the second conductive part, and the insulating layer and the static blocking part are formed by the same process.
7. The display panel according to claim 3,
the static blocking part further comprises a second dielectric layer, and the second dielectric layer and the first dielectric layer are made of different materials; at least a portion of the second dielectric layer is located within the first opening.
8. The display panel according to claim 1,
the display panel comprises a touch electrode, and at least part of the touch electrode is positioned in a display area of the display panel.
9. The display panel according to claim 8,
at least one of the first conductive part and the second conductive part includes a metal, and at least one of the first conductive part and the second conductive part is electrically connected to the touch electrode.
10. The display panel according to claim 8,
at least one of the first conductive part and the second conductive part is connected to a fixed potential.
11. The display panel according to claim 1,
at least one of the first conductive part and the second conductive part is located in a non-display area of the display panel, and the static blocking part is located in the non-display area of the display panel.
12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.
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