CN109256040B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN109256040B CN109256040B CN201811256675.7A CN201811256675A CN109256040B CN 109256040 B CN109256040 B CN 109256040B CN 201811256675 A CN201811256675 A CN 201811256675A CN 109256040 B CN109256040 B CN 109256040B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
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Abstract
The invention discloses a display panel and a display device, comprising: the display device comprises a hollow-out part, a first non-display area, a display area and a second non-display area; the display panel also comprises a first substrate, a second substrate, conductive adhesive and a cover plate; the first substrate and the second substrate are oppositely arranged, and the first substrate is attached to the second substrate through frame glue; the cover plate is positioned on one side of the first substrate far away from the second substrate; the conductive adhesive comprises a first conductive adhesive and a second conductive adhesive, and the first conductive adhesive is positioned on one side of the first substrate and one side of the second substrate close to the hollow part and arranged around the hollow part; the second conductive adhesive is positioned between the cover plate and the first substrate and is electrically connected with the first conductive adhesive. Compared with the prior art, the electrostatic protection capability of the display panel can be effectively improved; in addition, because the setting mode of first conducting resin and second conducting resin is simple and convenient, can not occupy more space, not only be favorable to reducing antistatic cost, improve production efficiency, be favorable to realizing comprehensive screen design again.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
In order to meet diversified use requirements of users, a display device in the prior art is generally provided with a camera, a photoelectric sensor and the like. With the development of full-screen technology, in order to continuously increase the screen ratio of display devices, the current practice is mainly to reduce the size of these devices as much as possible to reduce the installation space, but is limited by the technical level, and the size of the devices can only be reduced.
Moreover, when the devices are installed, a certain installation space needs to be reserved in a display screen area of the display device, so that external electrostatic charges can easily enter the display screen from the installation space, the electrostatic protection capability of the display screen is weak, the installation space is limited, and if an electrostatic protection circuit is additionally arranged in the installation space, the screen occupation ratio is reduced, and the display effect of the display device is affected.
Disclosure of Invention
In view of the foregoing, the present invention provides a display panel and a display device.
The present invention provides a display panel, comprising: the display device comprises a hollow-out part, a first non-display area, a display area and a second non-display area; the first non-display area is arranged around the hollow part, the display area is arranged around the first non-display area, and the second non-display area is arranged around the display area;
the display panel also comprises a first substrate, a second substrate, conductive adhesive and a cover plate; the first substrate and the second substrate are oppositely arranged, and the first substrate is attached to the second substrate through frame glue; the cover plate is positioned on one side of the first substrate far away from the second substrate;
the conductive adhesive comprises a first conductive adhesive and a second conductive adhesive, and the first conductive adhesive is positioned on one side of the first substrate and one side of the second substrate close to the hollow part and arranged around the hollow part; the second conductive adhesive is positioned between the cover plate and the first substrate and is electrically connected with the first conductive adhesive.
The invention also provides a display device which comprises the display panel provided by the invention.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
the first conductive adhesive is arranged to lead out the electrostatic charges, so that the electrostatic charges are not accumulated in the hollow part, and the electrostatic protection capability of the display panel can be effectively improved; because the first conductive adhesive is positioned on one side of the substrate close to the hollow part and arranged around the hollow part, the electrostatic charges are firstly led out from the first conductive adhesive, and the electrostatic charges are effectively prevented from directly entering the interior of the display panel to influence the display effect of the display panel; meanwhile, the first conductive adhesive is electrically connected with the second conductive adhesive between the cover plate and the first substrate, and the electrostatic charges led out by the first conductive adhesive can be released through the second conductive adhesive, so that the electrostatic protection capability of the display panel can be further improved, and the display effect of the display panel is ensured. In addition, because the setting mode of first conducting resin and second conducting resin is simple and convenient, can not occupy more space, not only be favorable to reducing antistatic cost, improve production efficiency, be favorable to realizing comprehensive screen design again.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic plan view of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line C-C of FIG. 1;
fig. 3 is a schematic top view of a first conductive paste according to an embodiment of the invention;
FIG. 4 is a schematic view of another cross-sectional structure taken along the direction C-C in FIG. 1;
FIG. 5 is a schematic view of a further cross-sectional configuration taken along the line C-C in FIG. 1;
FIG. 6 is a schematic cross-sectional view taken along line D-D of FIG. 1;
FIG. 7 is a schematic view of another cross-sectional structure taken along the direction D-D in FIG. 1;
FIG. 8 is a schematic view of a further cross-sectional view taken along line D-D of FIG. 1;
FIG. 9 is a schematic diagram of a planar structure of another display panel according to an embodiment of the present invention;
FIG. 10 is a schematic view of a cross-sectional view taken along the line E-E in FIG. 9;
fig. 11 is a schematic plan view illustrating a display panel according to another embodiment of the present invention;
FIG. 12 is a schematic view of a cross-sectional view taken along the direction F-F in FIG. 11;
fig. 13 is a schematic plan view illustrating a display panel according to another embodiment of the present invention;
fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1 and 2, the present invention provides a display panel, including: the hollow part 10, the first non-display area B1, the display area AA, and the second non-display area B2; the first non-display area B1 is disposed around the hollow portion 10, the display area AA is disposed around the first non-display area B1, and the second non-display area B2 is disposed around the display area AA;
the display panel further includes a first substrate 20, a second substrate 30, a conductive paste 40, and a cover plate 50; the first substrate 20 and the second substrate 30 are oppositely arranged, and the first substrate 20 is attached to the second substrate 30 through the frame glue 60; the cover plate 50 is located on the side of the first substrate 20 away from the second substrate 30;
the conductive adhesive 40 includes a first conductive adhesive 41 and a second conductive adhesive 42, the first conductive adhesive 41 is located on one side of the first substrate 20 and the second substrate 30 close to the hollow portion 10, and is disposed around the hollow portion 10; the second conductive paste 42 is disposed between the cap plate 50 and the first substrate 20 and electrically connected to the first conductive paste 41. It should be noted that, in order to more intuitively illustrate the technical solution of the present invention, the structure of other film layers is not illustrated in the planar structure diagram shown in fig. 1, and details are not repeated in the following.
Specifically, the hollow portion 10 is mainly used for placing devices such as a camera and a photoelectric sensor, and electrostatic charges easily enter the display panel through the hollow portion 10, so that the electrostatic charges interfere with a circuit inside the display panel, and normal display of the display panel is affected. In this embodiment, the electrostatic charges can be led out through the first conductive paste 41, and the electrostatic charges are not accumulated in the hollow portion 10. The first conductive adhesive 41 is located on one side of the first substrate 20 and the second substrate 30 close to the hollow portion 10 and surrounds the hollow portion 10, so that the electrostatic charges can be effectively prevented from entering the inside of the display panel, and normal display of the display panel is ensured.
In addition, since the first conductive paste 41 is disposed around the hollow portion 10, in order to prevent the light of the hollow portion 10 from entering the display panel, a photoresist material with a very low transmittance may be doped in the first conductive paste 41 to enhance the capability of the first conductive paste 41 to resist the external light interference.
The second conductive adhesive 42 is disposed between the cover plate 50 and the first substrate 20, and since the cover plate 50 is usually disposed opposite to the light emitting surface of the display panel, the second conductive adhesive 42 needs to ensure a high light transmittance, at this time, the second conductive adhesive 42 should be free from doping substances that affect the light transmittance, and the cover plate 50 also needs to ensure a high light transmittance.
The first conductive paste 41 and the second conductive paste 42 may be a single-layer structure, such as one-time coating and then curing; or, the screen may also be a multi-layer structure, please refer to fig. 3, taking the first conductive adhesive 41 as an example, where the first conductive adhesive 41 is composed of a plurality of colloid layers 411, and when manufacturing, the first conductive adhesive 41 may be coated, cured and formed layer by layer, and the process is simple, easy to operate, and low in cost, and the space occupied by the conductive adhesive is small, so that the full-screen design is easier to implement. Of course, without affecting the conductive properties of the first conductive glue 41, it is also possible to make the glue layer 411 at the outermost layer (i.e. closest to the first and second substrates 20, 30) non-conductive, so that the remaining glue layer 411 is separated from the internal structure of the display panel by this layer of non-conductive glue layer 411. There are various electrical connection manners of the first conductive adhesive 41 and the second conductive adhesive 42, for example, in fig. 2, one side of the first conductive adhesive 41 close to the cover plate 50 directly contacts with the second conductive adhesive 42, and the electrostatic charges can be directly conducted to the second conductive adhesive 42 through the first conductive adhesive 41 for releasing. However, the present embodiment is not limited to this.
The first substrate 20 and the second substrate 30 which are oppositely arranged are attached through the frame glue 60, so that a box-shaped space can be formed between the first substrate 20 and the second substrate 30, a liquid crystal layer 61 can be arranged in the box-shaped space, and liquid crystal molecules in the liquid crystal layer 61 can be limited in the box-shaped space through the frame glue 60 to prevent overflow. In order to secure stability of the box-shaped space, a plurality of column spacers (not shown) may be additionally provided between the first substrate 20 and the second substrate 30.
It should be noted that the specific position of the hollow portion 10 on the display panel may be designed according to the actual use requirement on the basis of satisfying the above structural relationship, and the hollow portion 10 may be a through hole penetrating through the thickness direction of the entire display panel; the blind holes may only penetrate through a partial film layer of the display panel, that is, a partial transparent film layer is not removed or only remained without affecting the functions of devices such as a camera and a photosensor, which is not particularly limited in the present invention.
Of course, the shape of the hollow portion 10 may also be designed according to actual use requirements, such as a circle, an ellipse, a square, and the like, in order to use the technical solution of the present invention more intuitively, only the hollow portion 10 is taken as a circle for illustration, and further description is not repeated hereinafter.
The display panel provided by the embodiment at least has the following technical effects:
the first conductive adhesive is arranged to lead out the electrostatic charges, so that the electrostatic charges are not accumulated in the hollow part, and the electrostatic protection capability of the display panel can be effectively improved; because the first conductive adhesive is positioned on one side of the substrate close to the hollow part and arranged around the hollow part, the electrostatic charges are firstly led out from the first conductive adhesive, and the electrostatic charges are effectively prevented from directly entering the interior of the display panel to influence the display effect of the display panel; meanwhile, the first conductive adhesive is electrically connected with the second conductive adhesive between the cover plate and the first substrate, and the electrostatic charges led out by the first conductive adhesive can be released through the second conductive adhesive, so that the electrostatic protection capability of the display panel can be further improved, and the display effect of the display panel is ensured. In addition, because the setting mode of first conducting resin and second conducting resin is simple and convenient, can not occupy more space, not only be favorable to reducing antistatic cost, improve production efficiency, be favorable to realizing comprehensive screen design again.
In some alternative embodiments, please refer to fig. 1 and fig. 4 in combination, the first substrate 20 includes a first substrate 21 and a black matrix 22, the black matrix 22 is located on a side of the first substrate 21 close to the second substrate 30; one side of the black matrix 22 close to the second substrate 30 is electrically connected to the sealant 60, and one side of the black matrix 22 close to the hollow portion 10 is electrically connected to the first conductive adhesive 41.
In this embodiment, light is difficult to transmit through the black matrix 22, in order to display an image, the first substrate 20 may further include a plurality of color resistors 23, the color resistors 23 are located in the display area AA, light may transmit through the color resistors 23 to display corresponding colors, and the colors of the plurality of color resistors 23 may not be completely the same.
The electrical connection between the black matrix 22 and the sealant 60 and the first conductive adhesive 41 can be in various manners, and this embodiment does not specifically limit this, and only the side of the black matrix 22 close to the second substrate 30 in fig. 4 directly contacts the sealant 60, and the side of the black matrix 22 close to the hollow portion 10 also directly contacts the first conductive adhesive 41 is taken as an example for description. Since the first conductive paste 41 and the black matrix 22 are electrically connected, in order to prevent electrostatic charges of the first conductive paste 41 from being introduced into the black matrix 22, the conductive performance of the black matrix 22 may be reduced as much as possible, that is, the black matrix 22 is made of a material having extremely low light transmittance and conductive performance.
Optionally, as shown in fig. 1 and fig. 4, the resistance values of the first conductive adhesive 41 and the second conductive adhesive 42 are the same, the resistance value of the second conductive adhesive 42 is smaller than the resistance value of the black matrix 22, and the resistance value of the black matrix 22 is smaller than the resistance value of the sealant 60.
The conductive adhesive 40 can be made by doping conductive filler on a resin substrate, the resin substrate can be thermosetting adhesives such as epoxy resin, organic silicon resin, polyimide resin, phenolic resin, polyurethane, acrylic resin and the like, and the epoxy resin can be cured at room temperature or below 150 ℃ and has rich formula designability, so the epoxy resin is usually used as the resin substrate; the conductive filler may be at least one of gold, silver, copper, aluminum, zinc, iron, nickel, and graphite in powder form, and some conductive compounds, and the conductive paste 40 may be made conductive by the conductive filler.
In this embodiment, since the resistance values of the first conductive adhesive 41 and the second conductive adhesive 42 are the same, the same resin substrate and the same conductive filler can be selected for manufacturing, and certainly, in order to further improve the antistatic capability, the resistance value of the second conductive adhesive 42 can be designed to be smaller than the resistance value of the first conductive adhesive 41, which is not limited in this embodiment. The resistances of the second conductive adhesive 42 (or the first conductive adhesive 41), the black matrix 22 and the sealant 60 are sequentially increased, so that the electrostatic charges can be effectively prevented from entering the display panel through the first conductive adhesive 41 and the second conductive adhesive 42, and the display panel has better antistatic performance.
Optionally, as shown in fig. 4, the resistance of the second conductive adhesive 42 is 107～109Omega/□. Therefore, the resistance of the black matrix 22 and the sealant 60 can be 107～109The omega/□ is adjusted when the resistance relation is satisfied, which is beneficial to expanding the application range of the display panel.
Alternatively, as shown in fig. 5, the second substrate 30 may include a second substrate 31, and a thin film transistor T and a pixel electrode 32 sequentially disposed on the second substrate 31. The second substrate 31 and the first substrate 21 may be glass substrates, or may also be substrates made of flexible materials, such as PI, etc., and this embodiment is not particularly limited thereto.
One of the electrodes (typically, the drain electrode) of the thin film transistor T is electrically connected to the pixel electrode 32, and when the device is turned on, a voltage can be applied to the liquid crystal layer 61 through the pixel electrode 32, so that liquid crystal molecules in the liquid crystal layer 61 can be deflected.
In some alternative embodiments, please refer to fig. 1 and fig. 6 in combination, in the direction perpendicular to the first substrate 20, the orthographic projection of the second conductive paste 42 covers the first non-display area B1, the display area AA, and the second non-display area B2. Therefore, the cover plate 50 can be directly installed on one side of the first substrate 20 far away from the second substrate 30 through the second conductive adhesive 42, the manufacturing process is simpler and more convenient, meanwhile, due to the fact that the second conductive adhesive 42 is electrically connected with the first conductive adhesive 41, the electrostatic charges which originally easily enter the display panel can be led out and released, and the display effect of the display panel is effectively ensured.
Optionally, as shown in fig. 6, the second conductive adhesive 42 may only cover the first non-display area B1, the display area AA, and the second non-display area B2, that is, in a direction perpendicular to the first substrate 20, an orthographic projection of the second conductive adhesive 42 does not cover the hollow portion 10, which is beneficial to reducing the usage amount of the second conductive adhesive 42 and reducing the production cost.
Optionally, referring to fig. 7, in a direction perpendicular to the first substrate 20, an orthogonal projection of the second conductive paste 42 further covers the hollow portion 10. Therefore, when the film layer where the second conductive adhesive 42 is located is manufactured, the second conductive adhesive 42 is directly coated and cured, the coating operation is more convenient, and the production efficiency of the display panel is improved.
Optionally, referring to fig. 8, in a direction perpendicular to the first substrate 20, an orthographic projection of the second conductive adhesive 42 may also cover at least a partial area of the hollow portion 10, so as to effectively ensure an electrical connection structure between the second conductive adhesive 42 and the first conductive adhesive 41, and avoid an influence on the electrostatic charge release efficiency due to poor contact between the two caused by coating process errors.
In the cross-sectional structure diagrams shown in fig. 6 to 8, the widths of the hollow portion 10, the first non-display area B1, the display area AA, and the second non-display area B2 in the direction parallel to the first substrate 20 are only schematic, that is, the widths of the four are adjustable according to the type requirement of the display panel in the actual production process, and the three embodiments are only illustrated in the arrangement of the four positions as shown in the drawing.
In addition, the cover plate 50 may be hollowed out in an area corresponding to the hollow portion 10, that is, in a direction perpendicular to the first substrate 20, an orthographic projection of the cover plate 50 only covers the first non-display area B1, the display area AA, and the second non-display area B2; of course, the cover plate 50 may not be excavated in the area corresponding to the hollow portion 10, that is, the cover plate 50 has a whole structure, so as to effectively prevent external dust and water oxygen from entering the hollow portion 10, prolong the service life of the camera, the photoelectric sensor and other devices installed in the hollow portion 10, and facilitate reduction of the maintenance difficulty and the maintenance cost of the devices.
In some optional embodiments, please refer to fig. 9 and 10 in combination, the display panel further includes a first conductive connection portion 70, wherein the first conductive connection portion 70 is located in the first non-display area B1 and disposed around the hollow portion 10; the first conductive connection portion 70 and the second conductive paste 42 are at least partially overlapped, and one side of the first conductive connection portion 70 close to the first substrate 20 is electrically connected to the first conductive paste 41. In order to more intuitively illustrate the technical solution of the present invention, the structure of other film layers is not illustrated in the plan view structure shown in fig. 9.
In this embodiment, the first conductive connection portion 70 and the second conductive adhesive 42 are at least partially overlapped, and at this time, in a direction perpendicular to the first substrate 20, an orthographic projection of the second conductive adhesive 42 may cover the hollow portion 10, or may not cover or cover part of the hollow portion 10, which is not limited in this embodiment, as long as it is ensured that one side of the first conductive connection portion 70 close to the first substrate 20 is electrically connected with the first conductive adhesive 41, and the electrical connection manner may also be various, for example, in fig. 10, one side of the first conductive connection portion 70 close to the first substrate 20 is directly contacted with the first conductive adhesive 41, and the electrostatic charges may be conducted to the second conductive adhesive 42 through the first conductive connection portion 70 for releasing, which is not limited in this embodiment.
Because first conductive connection portion 70 is the same as first conductive adhesive 41, also sets up around fretwork portion 10 to static electric charge on first conductive adhesive 41 can lead to first conductive connection portion 70 high-efficiently, is favorable to improving static electric charge's derivation efficiency, promotes display panel's antistatic effect.
The first conductive connection portion 70 is located in the first non-display region B1, that is, the first conductive connection portion 70 has no influence on the screen ratio of the display panel, so that the first conductive connection portion 70 may be made of a material with better conductive performance, such as metal, ITO (indium tin oxide), and the like, which is not limited in this embodiment.
Optionally, as shown in fig. 9 and fig. 10, the resistance of the first conductive connecting portion 70 is smaller than the resistance of the first conductive adhesive 41. Therefore, the electrostatic charges can be preferentially guided to the first conductive connection portion 70 through the first conductive adhesive 41 and released through the second conductive adhesive 41, so as to further ensure that the electrostatic charges at the hollow portion 10 do not affect the display effect of the display panel.
Optionally, as shown in fig. 10, the resistance of the first conductive connecting portion 70 is less than or equal to 103Omega/□. So that the resistance values of the first conductive paste 41 and the second conductive paste 42 may be less than or equal to 103The omega/□ is adjusted when the resistance relation is satisfied, which is beneficial to expanding the application range of the display panel.
In some optional embodiments, please refer to fig. 11 and 12 in combination, the display panel further includes a second conductive connection portion 71, the second conductive connection portion 71 is located in the second non-display area B2 and at least partially overlaps the second conductive adhesive 42, so that the electrostatic charges accumulated on the second conductive adhesive 42 can be discharged through the second conductive connection portion 71. In order to more intuitively illustrate the technical solution of the present invention, the structure of other film layers is not illustrated in the plan view structure shown in fig. 12.
In this embodiment, the second conductive connection portion 71 is located in the second non-display region B2, that is, the second conductive connection portion 71 has no influence on the screen ratio of the display panel, so that the second conductive connection portion 71 may also be made of a material with better conductive performance, such as metal, ITO (indium tin oxide), and the like, which is not limited in this embodiment.
The second conductive connection portion 71 may be configured in various ways, for example, the second conductive connection portion 71 is grounded through a grounding member 80 to discharge the electrostatic charge, and the grounding member 80 may be a metal bezel on the display device or the like; for another example, the second conductive connection portion 71 is directly electrically connected to a ground signal line inside the display panel, which is not particularly limited in this embodiment.
Optionally, as shown in fig. 12, the resistance of the second conductor connecting portion 71 is smaller than the resistance of the second conductive adhesive 42. So that the electrostatic charges can be conducted to the second conductor connecting portion 71 more quickly for discharge.
Alternatively, as shown in fig. 13, the second conductive connecting portion 71 is annular and disposed around the display area AA.
In this embodiment, since the annular second conductive connection portion 71 is disposed around the display area AA, grounding can be achieved at each position of the second conductive connection portion 71, and the electrostatic discharge capability of the second conductive connection portion 71 can be further improved.
Of course, in the case where the amount of electrostatic charge is small, the second conductive connection portion 71 may have a U shape as shown in fig. 11 or another shape, which is not particularly limited in this embodiment.
The invention also provides a display device which comprises the display panel provided by the invention.
Referring to fig. 14, a display device 200 of the present embodiment includes the display panel 100 according to any one of the above embodiments of the present invention. Fig. 14 illustrates the display device 200 by taking a mobile phone as an example, but it should be understood that the display device 200 provided in the embodiment of the present invention may also be other display devices with a display function, such as a tablet, a television, a computer, a watch, and a vehicle-mounted display, and the present invention is not limited thereto. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display panel in each of the above embodiments, which is not repeated herein.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:
the first conductive adhesive is arranged to lead out the electrostatic charges, so that the electrostatic charges are not accumulated in the hollow part, and the electrostatic protection capability of the display panel can be effectively improved; because the first conductive adhesive is positioned on one side of the substrate close to the hollow part and arranged around the hollow part, the electrostatic charges are firstly led out from the first conductive adhesive, and the electrostatic charges are effectively prevented from directly entering the interior of the display panel to influence the display effect of the display panel; meanwhile, the first conductive adhesive is electrically connected with the second conductive adhesive between the cover plate and the first substrate, and the electrostatic charges led out by the first conductive adhesive can be released through the second conductive adhesive, so that the electrostatic protection capability of the display panel can be further improved, and the display effect of the display panel is ensured. In addition, because the setting mode of first conducting resin and second conducting resin is simple and convenient, can not occupy more space, not only be favorable to reducing antistatic cost, improve production efficiency, be favorable to realizing comprehensive screen design again.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (13)
1. A display panel, comprising:
the display device comprises a hollow-out part, a first non-display area, a display area and a second non-display area; wherein the first non-display area is disposed around the hollowed-out portion, the display area is disposed around the first non-display area, and the second non-display area is disposed around the display area;
the display panel further comprises a first substrate, a second substrate, conductive adhesive and a cover plate; the first substrate and the second substrate are oppositely arranged, and the first substrate is attached to the second substrate through frame glue;
the cover plate is positioned on one side of the first substrate far away from the second substrate;
the conductive adhesive comprises a first conductive adhesive and a second conductive adhesive, and the first conductive adhesive is positioned on one side of the first substrate and one side of the second substrate close to the hollow part and arranged around the hollow part;
the second conductive adhesive is located between the cover plate and the first substrate and is electrically connected with the first conductive adhesive.
2. The display panel according to claim 1,
the first substrate comprises a first substrate base plate and a black matrix, and the black matrix is positioned on one side of the first substrate base plate close to the second substrate;
one side of the black matrix, which is close to the second substrate, is electrically connected with the frame glue, and one side of the black matrix, which is close to the hollow part, is electrically connected with the first conductive glue.
3. The display panel according to claim 2,
the resistance values of the first conductive adhesive and the second conductive adhesive are the same, the resistance value of the second conductive adhesive is smaller than the resistance value of the black matrix, and the resistance value of the black matrix is smaller than the resistance value of the frame adhesive.
4. The display panel according to claim 3,
the resistance value of the second conductive adhesive is 107～109Ω/□。
5. The display panel according to claim 1,
the display panel further comprises a first conductive connecting part, wherein the first conductive connecting part is positioned in the first non-display area and arranged around the hollow part;
the first conductive connecting part and the second conductive adhesive are at least partially overlapped, and one side, close to the first substrate, of the first conductive connecting part is electrically connected with the first conductive adhesive.
6. The display panel according to claim 5,
the resistance value of the first conductive connecting part is smaller than that of the first conductive adhesive.
7. The display panel according to claim 6,
the resistance value of the first conductive connecting part is less than or equal to 103Ω/□。
8. The display panel according to claim 1,
the display panel further comprises a second conductive connecting part, wherein the second conductive connecting part is located in the second non-display area and at least partially overlapped with the second conductive adhesive.
9. The display panel according to claim 8,
the second conductive connecting part is annular and is arranged around the display area.
10. The display panel according to claim 8,
the resistance value of the second conductor connecting part is smaller than that of the second conductive adhesive.
11. The display panel according to claim 1,
in a direction perpendicular to the first substrate, an orthographic projection of the second conductive paste covers the first non-display area, the display area and the second non-display area.
12. The display panel according to claim 11,
in the direction perpendicular to the first substrate, the orthographic projection of the second conductive adhesive also covers the hollow-out part.
13. A display device characterized by comprising the display panel according to any one of claims 1 to 12.
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| CN201811256675.7A CN109256040B (en) | 2018-10-26 | 2018-10-26 | Display panel and display device |
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| CN201811256675.7A CN109256040B (en) | 2018-10-26 | 2018-10-26 | Display panel and display device |
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