CN112578938A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112578938A CN112578938A CN202011442878.2A CN202011442878A CN112578938A CN 112578938 A CN112578938 A CN 112578938A CN 202011442878 A CN202011442878 A CN 202011442878A CN 112578938 A CN112578938 A CN 112578938A
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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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Abstract
The application discloses display panel and display device, display panel includes touch-control electrode, touch-control electrode includes: a first electrode comprising a first master electrode and a first slave electrode electrically connected; a second electrode comprising a second master electrode and a second slave electrode electrically connected; the second main electrode and the first main electrode are arranged in a crossed manner, the second slave electrode is located in the first main electrode, and the first slave electrode is located in the second main electrode, so that mutual capacitance between the first electrode and the second electrode is increased, and touch sensitivity of the display panel is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
In a flexible display device, an external-hanging type is often adopted to directly prepare a touch electrode on an encapsulation layer of a display panel to realize a touch function of the display device. However, the thickness of the packaging layer of the display panel is relatively thin, and the touch control electrode is easily interfered with the electrode in the display panel, so that the touch control sensitivity of the display device is affected, and the display device has the problems of touch control insensitivity and the like.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can improve the touch sensitivity of the display panel.
An embodiment of the present application provides a display panel, including a touch electrode, the touch electrode includes:
a first electrode comprising a first master electrode and a first slave electrode electrically connected;
a second electrode comprising a second master electrode and a second slave electrode electrically connected;
the second master electrode is arranged to intersect with the first master electrode, the second slave electrode is located in the first master electrode, and the first slave electrode is located in the second master electrode.
In some embodiments, the touch electrode further comprises a bridge electrode comprising:
the first bridge electrode is electrically connected with the first main electrode and the first slave electrode;
the second bridge electrode is electrically connected with the second main electrode and the second slave electrode.
In some embodiments, the touch electrode further includes an extension electrode located in and electrically connected to the first main electrode and the second main electrode, and the first slave electrode and the second slave electrode are disposed along the extension electrode.
In some embodiments, the extension electrode comprises a first protrusion and/or a first recess, and the first slave electrode and the second slave electrode comprise a second recess and/or a second protrusion corresponding to the first protrusion and/or the first recess.
In some embodiments, the bridging electrode further comprises a third bridging electrode electrically connecting the extension electrode and the first main electrode; and/or, electrically connecting the extension electrode and the second main electrode.
In some embodiments, the first master electrode, the first slave electrode and the first bridging electrode are in the same layer, and the second master electrode, the second slave electrode and the second bridging electrode are in the same layer.
In some embodiments, the first electrode, the second electrode, and the bridging electrode are different layers.
In some embodiments, the first electrode and the second electrode are on the same layer, the display panel includes an insulating layer located between the bridge electrode and the first and second electrodes, the insulating layer includes a via hole, and the first bridge electrode and the second bridge electrode are electrically connected to the first main electrode and the first slave electrode, the second main electrode and the second slave electrode through the via hole, respectively.
In some embodiments, the line width of the bridging electrode is greater than or equal to 0.1 microns and less than or equal to 10 microns.
The application also provides a display device comprising the display panel.
The embodiment of the application provides a display panel and display device, display panel includes touch-control electrode, touch-control electrode includes: a first electrode comprising a first master electrode and a first slave electrode electrically connected; a second electrode comprising a second master electrode and a second slave electrode electrically connected; the second main electrode and the first main electrode are arranged in a crossed manner, the second slave electrode is located in the first main electrode, and the first slave electrode is located in the second main electrode, so that mutual capacitance between the first electrode and the second electrode is increased, and touch sensitivity of the display panel is improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1A to fig. 1C are schematic structural diagrams of a display panel according to an embodiment of the present disclosure;
fig. 2A to 2G are schematic structural diagrams of a touch electrode according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Specifically, please refer to fig. 1A to 1C, which are schematic structural diagrams of a display panel according to an embodiment of the present application; as shown in fig. 2A to 2G, which are schematic structural diagrams of the touch electrode provided in the embodiments of the present application; the embodiment of the present application provides a display panel, including a touch electrode 100, the touch electrode 100 includes:
a first electrode 101, the first electrode 101 comprising a first main electrode 1011 and a first slave electrode 1012 electrically connected;
a second electrode 102, wherein the second electrode 102 includes a second main electrode 1021 and a second slave electrode 1022 that are electrically connected;
the second main electrode 1021 and the first main electrode 1011 are arranged in a crossed manner, the second slave electrode 1022 is located in the first main electrode 1011, and the first slave electrode 1012 is located in the second main electrode 1021, so as to increase an interaction area between the first electrode 101 and the second electrode 102, thereby increasing mutual capacitance between the first electrode 101 and the second electrode 102, and improving touch sensitivity of the display panel.
Further, the touch electrode 100 further includes a bridge electrode 103, and the bridge electrode 103 includes:
a first bridge electrode 1031 electrically connecting the first main electrode 1011 and the first slave electrode 1012;
the second bridge electrode 1032 is electrically connected to the second main electrode 1021 and the second slave electrode 1022.
In order to ensure that the bridging electrode 103 has good conductive performance and avoid the bridging electrode 103 from affecting the light-emitting rate of the display panel, the line width of the bridging electrode 103 is greater than or equal to 0.1 micrometer and less than or equal to 10 micrometers. Further, the line width of the bridge electrode 103 is greater than or equal to 1 micrometer and less than or equal to 5 micrometers. Further, the line width of the bridging electrode 103 is equal to 1 micron, 1.5 microns, 1.8 microns, 2 microns, 2.3 microns, 2.5 microns, 2.7 microns, 2.9 microns, 3 microns, 3.2 microns, 3.5 microns, 3.8 microns, 4 microns, 4.5 microns, or 5 microns.
With reference to fig. 2B to fig. 2G, the touch electrode 100 further includes an extension electrode 104 located in the first main electrode 1011 and the second main electrode 1021 and electrically connected to the first main electrode 1011 and the second main electrode 1021, and the first slave electrode 1012 and the second slave electrode 1022 are disposed along the extension electrode 104 to further increase mutual capacitance between the first electrode 101 and the second electrode 102, so as to further improve the touch sensitivity of the display panel.
Specifically, the extension electrode 104 includes:
a first extension electrode 1041 located inside the first main electrode 1011 and electrically connected to the first main electrode 1011, and the second auxiliary electrode 1022 is disposed along the first extension electrode 1041.
A second extension electrode 1042 located inside the second main electrode 1021 and electrically connected to the second main electrode 1021; the first slave electrode 1012 is disposed along the second extension electrode 1042.
Further, with reference to fig. 2D to fig. 2G, the extension electrode 104 includes a first protrusion 1051 and/or a first recess 1061, and the first slave electrode 1012 and the second slave electrode 1022 include a second recess 1062 and/or a second protrusion 1052 corresponding to the first protrusion 1051 and/or the first recess 1061, so as to increase the corresponding length of the first electrode 101 and the second electrode 102, further increase the mutual capacitance between the first electrode 101 and the second electrode 102, and further improve the touch sensitivity of the display panel.
Further, the first protrusion 1051 includes a first sub-protrusion and a second sub-protrusion; the first recess 1061 includes a first sub-recess and a second sub-recess; the second protrusion 1052 includes a third sub-protrusion corresponding to the first sub-depression, a fourth sub-protrusion corresponding to the second sub-depression; the second recess 1062 includes a third sub-recess corresponding to the first sub-protrusion and a fourth sub-recess corresponding to the second sub-protrusion. At least one of the first extension electrodes 1041 includes the first sub-protrusion and/or the first sub-recess, and the second slave electrode 1022 disposed along the first extension electrode 1041 includes the third sub-recess and/or the third sub-protrusion corresponding to the first sub-protrusion and/or the first sub-recess; at least one of the second extension electrodes includes the second sub-protrusion and/or the second sub-recess, and the first slave electrode 1012 disposed along the second extension electrode 1042 includes a fourth sub-recess and/or a fourth sub-protrusion corresponding to the second sub-protrusion and/or the second sub-recess.
Wherein the first and second sub-depressions may have different shapes and depths, and the shapes of the first and second sub-depressions include at least one of a polygon, a semicircle, a sector, a wave, and the like. In addition, the plurality of first protrusions 1051 on the same extension electrode 104 may have different protrusion lengths; similarly, the plurality of first recesses 1061 on the same extended electrode 104 may have different recess depths.
Further, the first main electrode 1011 further includes a third protrusion 1053 and/or a third recess 1063, and the second slave electrode 1022 and/or the second main electrode 1021 includes a fourth recess 1064 and/or a fourth protrusion 1054 corresponding to the third protrusion 1053 and/or the third recess 1063, as shown in fig. 2G.
Still further, the second master electrode 1021 also includes a fifth protrusion and/or a fifth recess, and the first slave electrode 1012 includes a sixth recess and/or a sixth protrusion corresponding to the fifth protrusion and/or the fifth recess.
With reference to fig. 2C and fig. 2E, the bridge electrode 103 further includes a third bridge electrode 1033, and the third bridge electrode 1033 is electrically connected to the extension electrode 104 and the first main electrode 1011; and/or electrically connecting the extension electrode 104 and the second main electrode 1021.
With reference to fig. 1A to fig. 1C, the display panel includes a substrate 200, and the touch electrode 100 is located on the substrate 200. The substrate 200 includes a rigid substrate and a flexible substrate, and the substrate 200 is made of a material including glass, quartz, ceramic, plastic, or polymer resin. The insulating layer 201 is made of a material including at least one of silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, tantalum oxide, hafnium oxide, zirconium oxide, or titanium oxide.
Specifically, the first main electrode 1011, the first slave electrode 1012 and the first bridge electrode 1031 are on the same layer, and the second main electrode 1021, the second slave electrode 1022 and the second bridge electrode 1032 are on the same layer, so that the first electrode 101 and the second electrode 102 are respectively located on different layers, the first electrode 101 and the first bridge electrode 1031 are on the same layer, and the second electrode 102 and the second bridge electrode 1032 are beneficial to reducing the process difficulty, as shown in fig. 1B. The display panel further includes an insulating layer 201 located between the first electrode 101 and the second electrode 102, and the insulating layer 201 is used to separate the first electrode 101 from the second electrode 102.
In addition, the first electrode 101, the second electrode 102 and the bridging electrode 103 may also be located on different layers. Specifically, with reference to fig. 1C, the first electrode 101 and the second electrode 102 are on the same layer, the display panel includes an insulating layer 201 between the bridging electrode 103 and the first electrode 101 and the second electrode 102, the insulating layer 201 includes a via, and the first bridging electrode 1031 and the second bridging electrode 1032 are electrically connected to the first main electrode 1011 and the first slave electrode 1012, the second main electrode 1021 and the second slave electrode 1022 through the via, respectively.
The bridging electrode 103 may be located between the first electrode 101, the second touch electrode 102 and the substrate 200, or located on a side of the first electrode 101 and the second touch electrode 102 away from the substrate 200.
If the bridging electrode 103 is located between the first electrode 101, the second touch electrode 102 and the substrate 200, the method for manufacturing the display panel includes the following steps:
step S10: preparing the bridging electrode 103 on the surface of the substrate 200;
step S20: forming the insulating layer 201 including the via hole on the surface of the bridging electrode 103;
step S30: the touch electrode 100 is formed on the surface of the insulating layer 201.
Specifically, in the step S10, the bridge electrode 103 includes the first bridge electrode 1031 and the second bridge electrode 1032 formed on the surface of the substrate 200. In the step S20, a yellow light process may be used to prepare the via hole. In step S30, the touch electrode 103 includes the first electrode 101 and the second electrode 102 formed on the surface of the insulating layer 201. The first electrode 101 includes the first main electrode 1011 and the first slave electrode 1012, the second electrode 102 includes the second main electrode 1021 and the second slave electrode 1022, the first slave electrode 1012 is formed in the second main electrode 1021, and the second slave electrode 1022 is formed in the first main electrode 1011, so as to improve the touch sensitivity of the display panel without increasing the number of manufacturing processes.
When the first electrode 101 and the second electrode 102 are disposed on the same layer, any two adjacent first main electrodes 1011 or second main electrodes 1021 are electrically connected through the bridge electrode 103, so as to avoid a short circuit between the first main electrodes 1011 and the second main electrodes 1021.
Specifically, as shown in fig. 2A to 2G, any two adjacent first main electrodes 1011 are electrically connected indirectly through the first bridge electrode 1031 and the first slave electrode 1012, or any two adjacent second main electrodes 1021 are electrically connected indirectly through the second bridge electrode 1032 and the second slave electrode 1022, as shown in fig. 2A to 2F. In addition, any two adjacent first main electrodes 1011 or two adjacent second main electrodes 1021 can also be electrically connected directly through the bridging electrode 103, as shown in fig. 2G.
It can be understood that in the display panel, the bridge electrode 103, the first electrode 101, and the second electrode 102 may be located at different layers, so that the touch electrode 100 can be manufactured by using the existing manufacturing process, and the details are not repeated herein.
With reference to fig. 2A to fig. 2G, the first electrode 101 includes one of a driving electrode or a sensing electrode; correspondingly, the second electrode 102 comprises the other of a drive electrode or a sense electrode. Further, the first electrode 101 and the second electrode 102 are metal mesh electrodes.
With reference to fig. 1A to fig. 1C, the display panel further includes a protection layer 202, the protection layer 202 is located on a side of the touch electrode 100 away from the substrate 200, and the protection layer 202 is used for protecting the touch electrode 100.
With reference to fig. 1A, the display panel further includes a light emitting device 203 disposed between the substrate 200 and the touch electrode 100. Further, the light emitting device 203 includes an anode, a cathode, and a light emitting layer located between the anode and the cathode, and the touch electrode 100 is located on a side of the cathode away from the substrate 200.
The light emitting device 203 includes at least one of a micro light emitting diode, a sub-millimeter light emitting diode, and an organic light emitting diode.
Further, the light emitting layer may further include a quantum dot material, a fluorescent material, a perovskite material, or the like, to improve the light emitting efficiency of the light emitting device.
Further, the display panel further includes an encapsulation layer 204 between the light emitting device 203 and the touch electrode 100, and a control wiring layer, a buffer layer, and the like, which are not shown, between the light emitting device 203 and the substrate 200.
The application also provides a display device which comprises the display panel.
Further, the display device comprises a flexible display device and a liquid crystal display device.
Further, the display device comprises a mobile phone, a computer, a sports bracelet and the like.
Further, the display device further comprises a sensor, wherein the sensor comprises a line recognition sensor, a camera, a structured light sensor, a distance sensor, a light sensor and the like.
The display panel and the display device provided by the embodiment of the application, the display panel includes a touch electrode 100, the touch electrode 100 includes: a first electrode 101, the first electrode 101 comprising a first main electrode 1011 and a first slave electrode 1012 electrically connected; a second electrode 102, wherein the second electrode 102 includes a second main electrode 1021 and a second slave electrode 1022 that are electrically connected; the second main electrode 1021 and the first main electrode 1011 are arranged in a crossing manner, the second slave electrode 1022 is located in the first main electrode 1011, and the first slave electrode 1012 is located in the second main electrode 1021, so as to increase mutual capacitance between the first electrode 101 and the second electrode 102, thereby improving touch sensitivity of the display panel.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display panel and the display device provided by the embodiment of the present application are described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the embodiment is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display panel comprising a touch electrode, the touch electrode comprising:
a first electrode comprising a first master electrode and a first slave electrode electrically connected;
a second electrode comprising a second master electrode and a second slave electrode electrically connected;
the second master electrode is arranged to intersect with the first master electrode, the second slave electrode is located in the first master electrode, and the first slave electrode is located in the second master electrode.
2. The display panel of claim 1, wherein the touch electrode further comprises a bridge electrode, and wherein the bridge electrode comprises:
the first bridge electrode is electrically connected with the first main electrode and the first slave electrode;
the second bridge electrode is electrically connected with the second main electrode and the second slave electrode.
3. The display panel according to claim 2, wherein the touch electrode further comprises an extension electrode located in and electrically connected to the first main electrode and the second main electrode, and the first slave electrode and the second slave electrode are disposed along the extension electrode.
4. The display panel according to claim 3, wherein the extension electrode includes a first protrusion and/or a first recess, and the first slave electrode and the second slave electrode include a second recess and/or a second protrusion corresponding to the first protrusion and/or the first recess.
5. The display panel according to claim 3, wherein the bridge electrode further comprises a third bridge electrode electrically connecting the extension electrode and the first main electrode; and/or, electrically connecting the extension electrode and the second main electrode.
6. The display panel according to claim 2, wherein the first master electrode, the first slave electrode and the first bridge electrode are on the same layer, and the second master electrode, the second slave electrode and the second bridge electrode are on the same layer.
7. The display panel according to claim 2, wherein the first electrode, the second electrode and the bridge electrode are different layers.
8. The display panel according to claim 7, wherein the first electrode and the second electrode are on the same layer, the display panel comprises an insulating layer between the bridge electrode and the first and second electrodes, the insulating layer comprises via holes, and the first bridge electrode and the second bridge electrode are electrically connected to the first main electrode and the first slave electrode, and the second main electrode and the second slave electrode respectively through the via holes.
9. The display panel according to claim 2, wherein a line width of the bridge electrode is greater than or equal to 0.1 micrometers and less than or equal to 10 micrometers.
10. A display device comprising the display panel according to any one of claims 1 to 9.
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| CN202011442878.2A CN112578938B (en) | 2020-12-08 | 2020-12-08 | Display panel and display device |
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| CN202011442878.2A CN112578938B (en) | 2020-12-08 | 2020-12-08 | Display panel and display device |
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