CN113360020B - Display panel and display device - Google Patents
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- CN113360020B CN113360020B CN202110609341.9A CN202110609341A CN113360020B CN 113360020 B CN113360020 B CN 113360020B CN 202110609341 A CN202110609341 A CN 202110609341A CN 113360020 B CN113360020 B CN 113360020B
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Classifications
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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
- G06F3/0412—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
- H01L23/60—Protection against electrostatic charges or discharges, e.g. Faraday shields
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
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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 is used for improving the antistatic damage resistance 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 mutually insulated; orthographic projection of the first conductive part on the plane of the substrate is a first projection, 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 more than 0; the electrostatic blocking part is positioned between the first projection and the second projection on the plane where the substrate is positioned, and comprises a plurality of first openings which are arranged along the direction of the first projection pointing to the second projection.
Description
[ field of technology ]
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
[ background Art ]
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 today. At present, with the continuous development of display technology, the requirements of consumers on display devices are continuously improved, various display layers are endless, and display screens such as liquid crystal display screens, organic light-emitting display screens and the like are appeared. On the basis, display technologies such as 3D display, touch display technology, curved surface display and ultra-high resolution display are also continuously emerging.
Static electricity is unavoidable during the manufacturing and use of the display panel. How to avoid static electricity from spreading to weak positions in the display panel and improve the anti-static impact capability of the display panel becomes a research focus of related technicians.
[ invention ]
The embodiment of the invention provides a display panel and a display device, which are used for improving the antistatic damage resistance 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; orthographic projection of the first conductive part on a plane of the substrate is a first projection, 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 greater than 0;
the orthographic projection of the electrostatic blocking part on the plane where the substrate is located between the first projection and the second projection, the electrostatic blocking part comprises a plurality of first openings, and the first openings are arranged along the direction that the first projection points to the second projection.
In another aspect, an embodiment of the present invention provides a display device including the display panel described above.
According to the display panel and the display device provided by the embodiment of the invention, the electrostatic blocking part comprising the first opening is arranged in the display panel, and the first opening can enable different positions in the electrostatic blocking part to have different dielectric constants. If static electricity is firstly conducted to one of the first conductive part and the second conductive part during the preparation or the use of the display panel, 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 during the conduction of the static electricity from one of the first conductive part and the second conductive part, namely, the medium between the first conductive part and the second conductive part is non-uniform. Compared with a medium with a uniform dielectric constant, the arrangement of the static 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 formed in the static electricity blocking portion, and the plurality of first openings are arranged along the direction of the first projection to the second projection, so that in the process of propagating static electricity from one of the first conductive portion and the second conductive portion to the other, the plurality of dielectric non-uniform structures are arranged in the path of propagating static electricity from one of the first conductive portion and the second conductive portion to the other, the number of dielectric non-uniform structures can be increased, and the conducting difficulty of 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 that are needed 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 that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of one principle of electrostatic 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 taken along line 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 cross-sectional view taken along line 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 invention;
FIG. 8 is a schematic cross-sectional view taken 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 of a partial area of a display panel according to another embodiment of the present invention;
FIG. 12 is a schematic top view of a portion of a display panel according to another embodiment of the present invention;
FIG. 13 is a schematic top view of a portion of another display panel according to an embodiment of the present invention;
FIG. 14 is a schematic top view of a partial area of a display panel according to another embodiment of the present invention;
FIG. 15 is a schematic top view of a portion of another display panel according to an embodiment of the present invention;
FIG. 16 is a schematic top view of a portion of another display panel according to an embodiment of the present invention;
fig. 17 is a schematic diagram of a display device according to an embodiment of the invention.
[ detailed description ] of the invention
For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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 this application 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 relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that although the terms first, second, etc. may be used in embodiments of the present invention to describe the conductive portions, these conductive portions should not be limited by these terms. These terms are only used to distinguish the individual conductive portions from each other. For example, a first conductive portion may also be referred to as a second conductive portion, and similarly, a second conductive portion may also be referred to as a 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 disturbed by static electricity is an important research point for researchers. In the course of implementing the embodiments of the present invention, the inventors have studied to find that: as shown in FIG. 1, FIG. 1 is a schematic diagram of the principle of static electricity conduction between a first conductor 1 'and a second conductor S, which generates a static current I in the first conductor 1' when static electricity propagates across the first conductor 1 ESD Electrostatic current I ESD The presence of (a) generates a magnetic field centered on the first conductor 1' and radiating outwards, thereby causing the second conductor S within the field coverage to also be affected by static electricity. In fig. 1, R represents the distance between the second conductor S and the first conductor 1', and H represents the magnetic field strength of the magnetic field in the region where the second conductor S is located.
Currently, many electronic devices such as wirings and electrodes are provided in a display panel. In addition, in the production and use process of the display panel, contact actions such as operation and transmission of the production apparatus are unavoidable, and static electricity is easily 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 is conducted layer by layer to the inside of the display panel through the process described above, resulting in exposing various electronic devices within the display panel to the threat of static electricity.
In view of the above, an embodiment of the present invention provides a display panel, as shown in fig. 2 and 3, fig. 2 is a schematic top view of a partial area of the display panel provided by the embodiment of the present invention, and fig. 3 is a schematic cross-sectional view along AA' of fig. 2, where 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 portion 21 on the plane of the substrate 1 is a first projection, and the orthographic projection of the second conductive portion 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 greater than 0. I.e. with a gap between the first projection and the second projection. For example, as shown in fig. 3, the first conductive portion 21 and the second conductive portion 22 may be provided in the same layer, and both may be patterned from the same film layer at the time of preparation. The first conductive portion 21 and the second conductive portion 22 do not overlap each other in a direction perpendicular to the plane in which the substrate 1 is located.
As shown in fig. 2 and 3, the orthographic projection of the electrostatic blocking portion 3 on the plane of the substrate 1 is located between the above-described first projection and second projection. In the embodiment of the present invention, the electrostatic blocking portion 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 so as to have different dielectric constants at different positions in the electrostatic blocking portion 3. In the process of manufacturing or using 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, the static electricity blocking portion 3 between them includes at least two structures having different dielectric constants due to the arrangement of the first opening 301 during the process of conducting static electricity from one to the other, i.e., the medium therebetween will become non-uniform. Compared with a medium with a uniform dielectric constant, the arrangement of the electrostatic blocking portion 3 in the embodiment of the invention can prolong the conduction path of the static electricity from one of the first conductive portion 21 and the second conductive portion 22 to the other, increase the conduction difficulty of the static electricity, weaken the influence degree of the static electricity on the first conductive portion 21 or the second conductive portion 22, reduce the number of electronic components affected by the static electricity in the display panel, and improve the reliability of the display panel.
In addition, 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 along the direction of the first projection toward the second projection, so that in the process of propagating static electricity from one of the first conductive portion 21 and the second conductive portion 22 to the other, the plurality of dielectric non-uniform structures are equivalently provided in the path of propagating static electricity from one of the first conductive portion 21 and the second conductive portion 22 to the other, which can increase the number of dielectric non-uniform structures, and further increase the difficulty of conducting static electricity.
Illustratively, the materials of the first conductive portion 21 and the second conductive portion 22 include metals and/or transparent metal oxides. 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 portion 21 and the second conductive portion 22 may be display signals of the display panel. For example, the first conductive portion 21 and the second conductive portion 22 may be used as scan lines for transmitting scan signals, or both may be used as data lines for transmitting data signals, or one of the first conductive portion 21 and the second conductive portion 22 may be used as a scan line, and the other may be used as a data line. Alternatively, the embodiment of the present invention may further electrically connect the first conductive portion 21 and/or the second conductive portion 22 to a peripheral display circuit including a scan driving circuit, a data driving circuit, etc. for transmitting control signals required for controlling the operation of the peripheral display circuit including the scan driving circuit and the data driving circuit.
As shown in fig. 4, fig. 4 is a schematic diagram of another display panel according to an embodiment of the present invention, where 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-pixels 5 through the scan lines 42 located in the display area AA. In the embodiment of the present invention, the first conductive portion 21 and the second conductive portion 22 may be electrically connected to the shift register unit 410, so that the first conductive portion 21 and the second conductive portion 22 may be used as any one or both of a clock control signal line and a fixed level signal line. Based on the display panel with the structure shown in fig. 4, in the embodiment of the invention, if the static electricity is firstly conducted to the first conductive portion 21 by arranging the static electricity blocking portion 3 between the first conductive portion 21 and the second conductive portion 22, in the process that the static electricity is conducted from the first conductive portion 21 to the second conductive portion 22, the arrangement of the static electricity blocking portion 3 can prolong the conducting path that the static electricity is conducted from the first conductive portion 21 to the second conductive portion 22, increase the conducting difficulty of the static electricity, weaken the influence degree of the static electricity on the second conductive portion 22, and further weaken the influence of the static electricity on electronic components such as the shift register unit 410, the scanning line 42 and the like connected with the second conductive portion 22, which is beneficial to ensuring the reliability of the electronic components such as the signal line for display in the display panel and ensuring the good display effect of the display panel.
In addition, the signals transmitted by the first conductive part 21 and the second conductive part 22 may be other functional signals than the display. For example, when the display panel has a touch function, the display panel provided in the embodiment of the invention further includes a touch electrode, and the embodiment of the invention can make the first conductive portion 21 and the second conductive portion 22 serve as touch electrodes or touch signal lines for transmitting touch signals. Of course, in the embodiment of the present invention, one of the first conductive portion 21 and the second conductive portion 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 diagram of another display panel according to an embodiment of the present invention, where the display panel includes a touch electrode, and the touch electrode includes a first touch electrode 61 and a second touch electrode 62. At least part 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 disposed in different layers, and are electrically connected through a via hole in an insulating layer therebetween. In the embodiment of the present invention, the material of at least one of the first conductive portion 21 and the second conductive portion 22 may be set to be metal, so that the first conductive portion 21 is electrically connected to the first touch electrode 61 or the second touch electrode 62, and the second conductive portion 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 portion 21 with the first touch electrode 61, and electrically connecting the second conductive portion 22 with the second touch electrode 62.
When the display panel is used for touch control, as shown in fig. 5, the touch control chip 7 provides a driving signal to the first touch control electrode 61 through the first conductive part 21, and the second touch control electrode 62 is coupled under the action of the driving signal of the first touch control electrode 61 to generate an induction signal. When a touch operation occurs, the capacitance between the first touch electrode 61 and the second touch electrode 62 will change, resulting in 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 amount of 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, when the first conductive part 21 and/or the second conductive part 22 are electrically connected to the touch electrodes, static electricity is easily stored at a crossing position of the first touch electrode 61 and the second touch electrode 62 due to the overlapping of the second connection part 622 and the first connection part 612 to form a capacitance, resulting in that the position becomes a weak position of static electricity in the display panel. In the embodiment of the invention, the electrostatic blocking portion 3 is arranged between the first conductive portion 21 and the second conductive portion 22 serving as the touch signal line, 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 connection portion 622 through the second conductive portion 22 can be reduced, the amount of static charge stored by the overlap capacitance of the first connection portion 612 and the second connection portion 622 can be reduced, the probability that an insulating layer between the first connection portion 612 and the second connection portion 622 is broken down by static electricity is reduced, and the touch reliability of the display panel is improved.
Alternatively, as shown in fig. 4 and 5, the embodiment of the present invention may have at least one of the first conductive portion 21 and the second conductive portion 22 located in the non-display area NA of the display panel, and the electrostatic blocking portion 3 located in the non-display area NA of the display panel. The non-display area NA is located at one side of the display area AA near the edge of the display panel. Since static electricity is generally introduced at the edge of the display panel, the embodiment of the present invention locates the static electricity blocking portion 3 near the source of static electricity introduction, which is more advantageous for digesting static electricity at the source.
For example, in addition to using the first conductive portion 21 and/or the second conductive portion 22 as a touch signal line, alternatively, the embodiment of the present invention may connect at least one of the first conductive portion 21 and the second conductive portion 22 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 portion 21 and/or the second conductive portion 22 may be disposed between a first touch signal line and a second touch signal line, where 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. By the arrangement, the first conductive part 21 or the second conductive part 22 can be used for shielding mutual interference between the first touch signal line and the second touch signal line for transmitting different touch signals, so that the accuracy of touch performance is improved.
Alternatively, the embodiment of the present invention may also enable the first conductive portion 21 and/or the second conductive portion 22 to serve as a grounding trace in the display panel.
In the embodiment of the present invention, the electrostatic blocking portion 3 may have various designs, and the following descriptions are provided respectively:
in one embodiment, as shown in fig. 2 and 3, the electrostatic blocking portion 3 may include a first dielectric layer 31, and a material of the first dielectric layer 31 includes an oxynitride of silicon. 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 present 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 preparation of the first opening 301 is completed, the first opening 301 may not be filled with other materials, that is, air may be filled in the first opening 301. Since the dielectric constant of air is different from that of the first dielectric layer 31, the electrostatic blocking portion 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 along the thickness direction of the display panel, the first opening 301 may penetrate through the first dielectric layer 31 according to an embodiment of the present invention. The embodiment of the present invention can increase the content of another dielectric structure (such as air) having a different dielectric constant from that of the first dielectric layer 31 by setting the depth of the first opening 301 larger, so that the structure of the electrostatic 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 case of manufacturing the display panel having the structure as shown in fig. 6, when the first opening 301 penetrating the first dielectric layer 31 is formed by etching the first dielectric layer 31, the embodiment of the present invention may control the etching rate and/or etching time so that the first dielectric layer 31 is properly etched to the film layer located under the first dielectric layer 31, so that the first opening 301 penetrates the first dielectric layer 31.
In an exemplary embodiment of the present invention, as shown in fig. 7 and 8, fig. 7 is a schematic top view of a partial area of another display panel provided in the embodiment of the present invention, and fig. 8 is a schematic cross-sectional view along BB' of fig. 7, where 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 using the same process so that the insulating layer 4 between the first conductive portion 21 and the second conductive portion 22 is multiplexed as the electrostatic blocking portion 3. The arrangement is beneficial to reducing the number of the film layers in the display panel and thinning the thickness of the display panel.
In manufacturing the display panel having the structure shown in fig. 7 and 8, the embodiment of the present invention can manufacture the insulating layer 4 covering the first conductive portion 21 and the second conductive portion 22 by using a film forming process including coating, evaporation, sputtering, or the like. The first opening 301 is then formed by etching the insulating layer 4 between the first conductive portion 21 and the second conductive portion 22.
As shown in fig. 9 and 10, fig. 9 is a schematic top view of a partial area of a display panel according to another embodiment of the present invention, and fig. 10 is a schematic cross-sectional view along CC' of fig. 9, in which the electrostatic blocking portion 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 within the first opening 301. In manufacturing the display panel having the structure as shown in fig. 9 and 10, the embodiment of the present invention may first manufacture the first dielectric layer 31 by a film forming process including coating, evaporation, sputtering, or the like, 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, vapor deposition or sputtering. As illustrated in fig. 9 and 10, in addition to filling the first opening 301, the embodiment of the present invention may also enable the second dielectric layer 32 to cover the first dielectric layer 31 where the first opening 301 is not provided. In this way, for the first conductive portion 21 and/or the second conductive portion 22, during the process of conducting static electricity from one to the other, for static electricity conducted along the thickness direction of the display panel, the static electricity will also pass through the structure having two different dielectric constants, and therefore, the conducting difficulty of the static electricity will also increase.
For example, the first opening 301 may be designed as a stripe structure having a size in one direction significantly larger than that in the other direction. When the shape of the first opening is designed to be a strip 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 that in the other directions. Fig. 2 is a schematic diagram showing that the first opening 301 is parallel to the extending directions of the first conductive portion 21 and the second conductive portion 22.
Alternatively, 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 portion 22. Fig. 2 is a schematic diagram showing that the lengths of the first opening 301, the first conductive portion 21, and the second conductive portion 22 are equal. By the arrangement, the electrostatic blocking portion 3 including the first opening 301 can wrap the first conductive portion 21 and/or the second conductive portion 22 from a plurality of positions, so as to improve the difficulty of conducting static electricity along a plurality of different paths from a plurality of positions, and further improve the reliability of the display panel.
Alternatively, 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 area of a display panel according to another embodiment of the present invention, wherein, along an extending direction of the first conductive portion 21, a space G is provided between two adjacent first openings 301, and, along a direction in which the first conductive portion 21 points to the second conductive portion 22, the space G at least partially overlaps another first opening 301. The arrangement may be such that a structure having at least two dielectric constants is provided in both the extending direction of the first conductive portion 21 and the direction in which the first conductive portion 21 points to the second conductive portion 22, and the degree of non-uniformity of the medium arranged in the two directions can be increased.
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 area of a display panel according to another embodiment of the present invention, a second opening 302 may be further provided in the first dielectric layer 31, where the second opening 302 is in communication with the first opening 301, and the extending direction of the second opening 302 is different from that of the first opening 301. In this way, the content of the material having the other 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 dielectric of the electrostatic blocking portion 3 can be made more nonuniform. Further, the provision of the second opening 302 can increase the degree of medium unevenness of the electrostatic blocking portion 3 in the extending direction along the second opening 302, and can 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 only schematic, and in the embodiment of the present invention, as long as the first opening 301 and the second opening 302 intersect, the included angle between the two is not limited. For example, as shown in fig. 13, fig. 13 is a schematic top view of a partial area of a display panel according to another embodiment of the present invention, where 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 with different extending directions are provided in the static electricity blocking portion 3, as shown in fig. 12 and 13, the embodiment of the present invention may enable two ends of the same first opening 301 to be connected to two second openings 302, respectively.
Alternatively, embodiments of the present invention may also connect one first opening 301 to at most one second opening 302. As shown in fig. 14, fig. 14 is a schematic top view of a partial area of a display panel according to another embodiment of the present invention, in fig. 14, a portion of a first opening 301 is connected to a second opening 302, and another portion of the first opening 301 is not connected to the second opening 302. For a clearer illustration of an embodiment of the present invention, in fig. 14, a first opening connected to one second opening 302 is denoted 3011, and a first opening not connected to the second opening 302 is denoted 3012. As shown in fig. 14, the first openings 3011 and 3012 are arranged in the extending direction of the first conductive portion 21. By this arrangement, the degree of medium unevenness of the electrostatic blocking portion 3 can be increased, and the difficulty in conducting static electricity between the first conductive portion 21 and the second conductive portion 22 can be increased.
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 enable the orthographic projection of the first opening 301 on the plane of the substrate 1 to be in a ring shape, and enable the plurality of first openings 301 to be arranged along the extending direction of the first conductive portion 21 or the second conductive portion 22. As illustrated in fig. 15, two adjacent first openings 301 arranged in the extending direction of the first conductive portion 21 may communicate 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, with the symmetry axis being parallel to the extending direction of the first conductive portion 21.
Illustratively, embodiments of the present invention may provide for a gradual decrease in the density of the first openings 301 along the direction in which the edges of the display panel are directed toward the center of the display panel. As shown in fig. 16, fig. 16 is a schematic top view of a partial area of a display panel according to another embodiment of the present invention, wherein a shortest distance between the first conductive portion 21 and the edge E of the display panel is smaller than a 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 embodiment of the present invention provides the first openings 301 with a larger density near the source of the introduction of static electricity, so that the medium in the static electricity blocking portion 3 is more nonuniform, which is more beneficial to the digestion of static electricity at the source.
It should be understood that the shape of the first opening 301 is designed to be a long bar shape as shown in fig. 16 is only illustrative, and in the actual design process of the display panel, the first opening 301 may be designed to be different in density according to any one or several cases of fig. 11, 12, 13, 14 and 15, which will not be described here.
The embodiment of the invention also provides a display device, as shown in fig. 17, and fig. 17 is a schematic diagram of the display device according to the embodiment of the invention, where the display device includes the display panel 100 described above. The specific structure of the display panel 100 is described in detail in the above embodiments, and will not be described here again. Of course, the display device shown in fig. 17 is only a schematic illustration, and the display device may be any electronic apparatus having a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
In the display device provided by the embodiment of the invention, the electrostatic blocking part comprising the first opening is arranged in the display panel, and the first opening can enable different positions in the electrostatic blocking part to have different dielectric constants. If static electricity is firstly conducted to one of the first conductive part and the second conductive part during the preparation or the use of the display panel, 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 during the conduction of the static electricity from one of the first conductive part and the second conductive part, namely, the medium between the first conductive part and the second conductive part is non-uniform. Compared with a medium with a uniform dielectric constant, the arrangement of the static 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 formed in the static electricity blocking portion, and the plurality of first openings are arranged along the direction of the first projection to the second projection, so that in the process of propagating static electricity from one of the first conductive portion and the second conductive portion to the other, the plurality of dielectric non-uniform structures are arranged in the path of propagating static electricity from one of the first conductive portion and the second conductive portion to the other, the number of dielectric non-uniform structures can be increased, and the conducting difficulty of static electricity can be further increased.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the 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; orthographic projection of the first conductive part on a plane of the substrate is a first projection, 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 greater than 0;
the orthographic projection of the electrostatic blocking part on the plane of the substrate is positioned between the first projection and the second projection, the electrostatic blocking part comprises a first dielectric layer, the first dielectric layer comprises a plurality of first openings, and the plurality of first openings are arranged along the direction of the first projection pointing to the second projection;
wherein the dielectric constant of the first dielectric layer is different from the dielectric constant of the structure in the first opening.
2. The display panel of claim 1, wherein the display panel comprises,
the density of the first openings gradually decreases along a direction in which an edge of the display panel is directed toward a center of the display panel.
3. The display panel of claim 1, wherein the first opening penetrates the first dielectric layer in a thickness direction of the display panel.
4. The display panel according to claim 3, wherein,
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 of claim 4, wherein the display panel comprises,
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 that of the first opening.
6. The display panel according to claim 3, wherein,
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, wherein,
the electrostatic barrier further comprises a second dielectric layer, wherein 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 of claim 1, wherein the display panel comprises,
the display panel comprises touch electrodes, and at least part of the touch electrodes are positioned in a display area of the display panel.
9. The display panel of claim 8, wherein the display panel comprises,
at least one of the first conductive portion and the second conductive portion includes a metal, and at least one of the first conductive portion and the second conductive portion is electrically connected with the touch electrode.
10. The display panel of claim 8, wherein the display panel comprises,
at least one of the first conductive portion and the second conductive portion is connected to a fixed potential.
11. The display panel of claim 1, wherein the display panel comprises,
at least one of the first conductive portion and the second conductive portion is located in a non-display area of the display panel, and the static electricity blocking portion is located in the non-display area of the display panel.
12. A display device comprising the display panel of any one of claims 1-11.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296020A (en) * | 2012-06-29 | 2013-09-11 | 上海天马微电子有限公司 | Electrostatic discharge protection structure and semiconductor device |
| TW201351240A (en) * | 2012-06-15 | 2013-12-16 | Tpk Touch Solutions Xiamen Inc | Touch device and electrostatic shielding method thereof |
| CN205789987U (en) * | 2016-07-12 | 2016-12-07 | 杭州士兰集成电路有限公司 | groove power device |
| CN107092400A (en) * | 2017-06-27 | 2017-08-25 | 上海天马微电子有限公司 | Touch display panel and touch display device comprising same |
| CN108051966A (en) * | 2017-11-24 | 2018-05-18 | 武汉天马微电子有限公司 | Array substrate, control method, display panel and display device |
| CN109671705A (en) * | 2018-12-26 | 2019-04-23 | 武汉天马微电子有限公司 | Display panel and display device thereof |
| CN109920935A (en) * | 2019-03-18 | 2019-06-21 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN110518048A (en) * | 2019-08-30 | 2019-11-29 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN110797353A (en) * | 2019-11-12 | 2020-02-14 | 京东方科技集团股份有限公司 | Array substrate, display panel and display device |
| CN111446240A (en) * | 2020-04-30 | 2020-07-24 | 上海华虹宏力半导体制造有限公司 | MOS tube structure with electrostatic self-protection |
| CN112614958A (en) * | 2020-12-15 | 2021-04-06 | 厦门天马微电子有限公司 | Display panel, cutting panel and display device |
| CN112670270A (en) * | 2020-12-22 | 2021-04-16 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100559586C (en) * | 2004-01-30 | 2009-11-11 | Nxp股份有限公司 | Integrated circuit (IC) chip with electrostatic discharge protector |
| KR100635061B1 (en) * | 2004-03-09 | 2006-10-17 | 삼성에스디아이 주식회사 | Flat Panel Display and method of fabricating the same |
| KR102395221B1 (en) * | 2017-12-05 | 2022-05-10 | 삼성디스플레이 주식회사 | Display device |
| KR20200061443A (en) * | 2018-11-23 | 2020-06-03 | 삼성디스플레이 주식회사 | Display device and method of manufacturing the same |
| KR20200118316A (en) * | 2019-04-05 | 2020-10-15 | 삼성디스플레이 주식회사 | Display device |
| KR102674822B1 (en) * | 2019-06-28 | 2024-06-13 | 삼성디스플레이 주식회사 | Electronic apparatus |
-
2021
- 2021-06-01 CN CN202110609341.9A patent/CN113360020B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201351240A (en) * | 2012-06-15 | 2013-12-16 | Tpk Touch Solutions Xiamen Inc | Touch device and electrostatic shielding method thereof |
| CN103296020A (en) * | 2012-06-29 | 2013-09-11 | 上海天马微电子有限公司 | Electrostatic discharge protection structure and semiconductor device |
| CN205789987U (en) * | 2016-07-12 | 2016-12-07 | 杭州士兰集成电路有限公司 | groove power device |
| CN107092400A (en) * | 2017-06-27 | 2017-08-25 | 上海天马微电子有限公司 | Touch display panel and touch display device comprising same |
| CN108051966A (en) * | 2017-11-24 | 2018-05-18 | 武汉天马微电子有限公司 | Array substrate, control method, display panel and display device |
| CN109671705A (en) * | 2018-12-26 | 2019-04-23 | 武汉天马微电子有限公司 | Display panel and display device thereof |
| CN109920935A (en) * | 2019-03-18 | 2019-06-21 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN110518048A (en) * | 2019-08-30 | 2019-11-29 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN110797353A (en) * | 2019-11-12 | 2020-02-14 | 京东方科技集团股份有限公司 | Array substrate, display panel and display device |
| CN111446240A (en) * | 2020-04-30 | 2020-07-24 | 上海华虹宏力半导体制造有限公司 | MOS tube structure with electrostatic self-protection |
| CN112614958A (en) * | 2020-12-15 | 2021-04-06 | 厦门天马微电子有限公司 | Display panel, cutting panel and display device |
| CN112670270A (en) * | 2020-12-22 | 2021-04-16 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
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| Publication number | Publication date |
|---|---|
| CN113360020A (en) | 2021-09-07 |
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