CN107885389B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN107885389B CN107885389B CN201711225362.0A CN201711225362A CN107885389B CN 107885389 B CN107885389 B CN 107885389B CN 201711225362 A CN201711225362 A CN 201711225362A CN 107885389 B CN107885389 B CN 107885389B
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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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
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
Abstract
The embodiment of the invention provides a display panel and a display device. The display panel includes: a display area including a first display area and a second display area, the second display area at least partially surrounding the first display area; the touch control device comprises a non-display area, wherein the non-display area comprises a first area and a second area, the first area is embedded in the first display area, the second area surrounds the display area and the first area, a first touch electrode and a second touch electrode are positioned in the first display area, the first touch electrode is provided with an opening, the sum of mutual capacitance between the first touch electrode and the second touch electrode in any one first touch control sensing area is approximately equal to the sum of mutual capacitance between the touch electrodes in any one second touch control sensing area, and after the design is adopted, compared with the prior art, the touch control performance of the touch control sensing area where the touch electrode with the opening is positioned can be improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
In the prior art, in order to avoid components such as a camera and an earphone on a display device (e.g., a mobile phone), an opening is formed in an edge of a display panel, and the opening may cause a portion of touch electrodes in a touch layer of the display panel to be cut, that is, the portion of touch electrodes has a gap.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for solving the problem of poor touch performance of a touch sensing area where a touch electrode with an opening is located.
In one aspect, an embodiment of the present invention provides a display panel, including:
a display area comprising a first display area and a second display area at least partially surrounding the first display area;
a non-display area including a first area embedded in the first display area and a second area surrounding the display area and the first area;
the touch layer is located in the display area and comprises a plurality of touch electrodes distributed in an array mode, the first display area comprises a first touch electrode and a second touch electrode, the first touch electrode is provided with a notch, the second touch electrode is not provided with a notch, and the touch electrode located in the second display area is not provided with a notch;
the first display area corresponds to a plurality of first touch sensing areas, the second display area corresponds to a plurality of second touch sensing areas, and the sum of mutual capacitances between the first touch electrode and the second touch electrode in any one first touch sensing area is approximately equal to the sum of mutual capacitances between the touch electrodes in any one second touch sensing area.
In another aspect, an embodiment of the present invention provides a display device, which includes the display panel described above.
Any one of the above technical solutions has the following beneficial effects:
in the embodiment of the present invention, the display area includes a first display area and a second display area, the second display area at least partially surrounds the first display area, the non-display area includes a first area and a second area, the first area is embedded in the first display area, the second area surrounds the display area and the first area, the first display area can be formed into a structure having an opening, the opening can be used for placing devices such as a camera and a headphone in the display device, since it is not necessary to separately provide a device space for placing the camera and the headphone in the display device, it is advantageous to improve a screen occupation ratio of the display device, and since the first display area is provided with the opening, the first touch electrode in the first display area is provided with the opening, and the second touch electrode in the first display area is not provided with the opening, so that the touch layer avoids the opening, therefore, the influence of the touch layer on devices such as a camera and an earphone arranged in the opening can be reduced, the first display area corresponds to the plurality of first touch sensing areas, the second display area corresponds to the plurality of second touch sensing areas, and the sum of mutual capacitance between the first touch electrode and the second touch electrode in any one first touch sensing area is approximately equal to the sum of mutual capacitance between the touch electrodes in any one second touch sensing area. After the design is adopted, compared with the prior art (the touch performance of the touch sensing area where the touch electrode with the opening is located is poor), the touch performance of the touch sensing area where the touch electrode with the opening is located can be improved, and the mutual capacitance of the touch sensing areas in all the areas in the display panel is basically equal, so that the overall touch performance of the display panel is improved, and the uniformity of the touch performance of the display panel is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a top view of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a touch sensing area according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first touch sensing area in fig. 1;
fig. 4 is a schematic structural diagram of another first touch sensing area in fig. 1;
fig. 5 is a schematic structural diagram of another first touch sensing area according to an embodiment of the present invention;
fig. 6 is a partial top view of a display panel according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along direction AA' of FIG. 6;
FIG. 8 is a partial top view of another display panel according to an embodiment of the present invention;
FIG. 9 is a partial top view of a second display area according to an embodiment of the present invention;
FIG. 10 is a partial top view of another display panel according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view taken along direction BB' of FIG. 10;
FIG. 12 is a partial top view of another second display area provided in accordance with an embodiment of the present invention;
FIG. 13 is a cross-sectional view taken along the direction CC' in FIG. 12;
fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it is also to be understood that when an element is referred to as being "on" or "under" another element, it can be directly formed on "or" under "the other element or be indirectly formed on" or "under" the other element through an intermediate element.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a top view of a display panel according to an embodiment of the present invention, as shown in fig. 1, the display panel includes: a display area 1, the display area 1 comprising a first display area 11 and a second display area 12, the second display area 12 at least partially surrounding the first display area 11; a non-display area 2, the non-display area 2 including a first area 21 and a second area 22, the first area 21 being embedded in the first display area 11, the second area 22 surrounding the display area 1 and the first area 21; the touch layer 3 is located in the display area 1, the touch layer 3 includes a plurality of touch electrodes 31 distributed in an array, the first display area 11 includes a first touch electrode 311 and a second touch electrode 312, the first touch electrode 311 is provided with a notch, the second touch electrode 312 is not provided with a notch, and the touch electrode 31 located in the second display area 12 is not provided with a notch; the first display area 11 corresponds to a plurality of first touch sensing areas 4, the second display area 12 corresponds to a plurality of second touch sensing areas 5, and the sum of mutual capacitances between the first touch electrodes 311 and the second touch electrodes 312 in any one first touch sensing area 4 is substantially equal to the sum of mutual capacitances between the touch electrodes 31 in any one second touch sensing area 5.
Specifically, after the first display area 11, the second display area 12, the first area 21, and the second area 22 are designed as shown in fig. 1, because the first area 21 is embedded in the first display area 11, the first display area 11 can be formed into a structure having an opening, which is at the position of the first area 21 in fig. 1, and the opening can be used for placing a camera, a headphone, and other devices in the display device. Moreover, since the first touch electrodes 311 in the first display area 11 are provided with the notches, the pattern formed by the notches of the plurality of first touch electrodes 311 may be the opening, so that the touch layer 3 can avoid the opening, and the influence of the touch layer 3 on devices such as a camera and an earphone disposed in the opening can be reduced.
Fig. 2 is a schematic structural diagram of a touch sensing area according to an embodiment of the present invention, as shown in fig. 2, a complete touch sensing area (e.g., an area indicated by a dashed-line frame in fig. 2) includes an area surrounded by extension lines of diagonal lines of four adjacent touch electrodes 31, one touch sensing area is a smallest touch unit in the touch layer 3, edges of any two adjacent touch electrodes 31 in one touch sensing area form a mutual capacitance, and the larger the facing area of the edges of two adjacent touch electrodes 31 is, the larger the corresponding mutual capacitance is, in the prior art, due to the opening, the touch electrode adjacent to the opening (i.e., the first touch electrode) is cut, the integrity of the touch electrode adjacent to the opening is damaged, and thus the facing areas of the touch electrode adjacent to the opening and the edges of the touch electrode adjacent to the opening are smaller, further reducing the touch performance degradation of the touch sensing area (i.e. the first touch sensing area) where the touch electrodes adjacent to the opening are located, in the embodiment of the present invention, as shown in fig. 1, the sum of mutual capacitances between the first touch electrode 311 and the second touch electrode 312 in any one of the first touch sensing areas 4 is designed to be substantially equal to the sum of mutual capacitances between the touch electrodes 31 in any one of the second touch sensing areas 5, i.e. the mutual capacitance formed by each touch electrode 31 in the first touch sensing area 4 is substantially equal to the mutual capacitance formed by each touch electrode 31 in the second touch sensing area 5, and after the above design is adopted, compared with the prior art (the touch sensing area where the touch electrode with the opening is located has poor touch performance), the embodiment of the present invention can improve the touch performance of the first touch sensing area 4, meanwhile, the mutual capacitance of the first touch sensing area 4 and the second touch sensing area 5 in the display panel is basically equal, so that the touch performance of the display panel is uniform.
Alternatively, as shown in fig. 1, the facing area of the edge of each touch electrode 31 in the first touch sensing area 4 is substantially equal to the facing area of the edge of each touch electrode 31 in the second touch sensing area 5.
Specifically, since the larger the facing area of the edges of two adjacent touch electrodes is, the larger the corresponding mutual capacitance is, and the larger the mutual capacitance in one touch sensing area is, the better the touch performance of the touch sensing area is, as shown in fig. 1, when the facing area of the edges of each touch electrode 31 located in the first touch sensing area 4 is substantially equal to the facing area of the edges of each touch electrode 31 located in the second touch sensing area 5, the mutual capacitance corresponding to the first touch sensing area 4 can be made substantially equal to the mutual capacitance corresponding to the second touch sensing area 5, so that the touch performance of the first touch sensing area 4 is substantially equal to that of the second touch sensing area 5, since each touch electrode 31 corresponding to the second touch sensing area 5 is a complete touch electrode, the touch electrode corresponding to the first touch sensing area 4 comprises a cut touch electrode 31, therefore, in the prior art, the touch performance of the first touch sensing area is lower than that of the second touch sensing area, and in the embodiment of the present invention, the touch performance of the first touch sensing area 4 can be improved by adopting the above design.
Optionally, fig. 3 is a schematic structural diagram of one first touch sensing area in fig. 1, and fig. 4 is a schematic structural diagram of another first touch sensing area in fig. 1, as shown in fig. 1, fig. 3 and fig. 4, an area of an orthographic projection of the second touch electrode 312 on the display panel is equal to an area of an orthographic projection of the touch electrode 31 located in the second display area 12 on the display panel, two adjacent first touch electrodes 311 are provided with protrusions, and the protrusions of two adjacent first touch electrodes 311 are arranged in an insertion manner.
Specifically, as shown in fig. 1, 3 and 4, the second touch electrode 312 is a touch electrode 31 without a notch, the first touch electrode 311 is a touch electrode 31 with a notch, and an area of an orthogonal projection of the second touch electrode 312 on the display panel is equal to an area of an orthogonal projection of the touch electrode 31 located in the second display region 12 on the display panel, that is, an area of a touch electrode 31 with a complete structure in the display panel is equal.
As shown in fig. 1, 3 and 4, in the first touch sensing area 4, the opposite edges of the first touch electrode 311 and the second touch electrode 312 are complete, the mutual capacitance corresponding to the first touch electrode 311 and the second touch electrode 312 is equal to the mutual capacitance formed by the edges of any two adjacent touch electrodes 31 in the second touch sensing area 5, and the two adjacent first touch electrodes 311 are provided with protrusions, and the protrusions of the two adjacent first touch electrodes 311 are arranged in an insertion manner, after the above design is adopted, the facing area of the edges of the two adjacent first touch electrodes 311 can be increased, so as to increase the mutual capacitance corresponding to the first touch sensing area 4, whereas in the first touch sensing area of the prior art, the edges of the two adjacent first touch electrodes are incomplete (due to the existence of openings, the first touch electrodes are cut, the edges of the first touch electrodes are incomplete), and therefore the mutual capacitance corresponding to two adjacent first touch electrodes is smaller than the mutual capacitance formed by the edges of any two adjacent touch electrodes 31 in the second touch sensing area 5, compared with the prior art, in the embodiment of the present invention, the mutual capacitance corresponding to the first touch sensing area 4 can be increased, and the mutual capacitance corresponding to the first touch sensing area 4 and the mutual capacitance corresponding to the second touch sensing area 5 can be substantially equal, so that the uniformity of the touch performance of the display panel is increased.
It should be noted that fig. 5 is a schematic structural diagram of another first touch sensing area according to an embodiment of the present invention, as shown in fig. 5, in the first touch sensing area 4, in order to increase the mutual capacitance between the first touch electrode 311 and the second touch electrode 3121 in order to make the mutual capacitance of the corresponding first touch sensing area 4 and the second touch sensing area 5 equal, the first touch electrode 311 and the second touch electrode 3121 adjacent to the first touch electrode 311 are both provided with a protrusion, and the protrusion is inserted into a finger, and by adopting the above design, the facing area of the edges of the first touch electrode 311 and the second touch electrode 3121 can be increased, so that the mutual capacitance of the first touch sensing area 4 and the second touch sensing area 5 is equal.
Optionally, fig. 6 is a partial top view of a display panel according to an embodiment of the present invention, and fig. 7 is a cross-sectional view along the direction AA' in fig. 6, as shown in fig. 6 and fig. 7, a plurality of touch electrodes 31 are disposed in the same layer, the plurality of touch electrodes 31 include a first electrode 6 electrically connected along a row direction and a second electrode 7 electrically connected along a column direction through a bridge wire 8, and an insulating layer 9 is disposed between the bridge wire 8 and the first electrode 6.
Specifically, as shown in fig. 6 and 7, when the touch electrodes 31 are disposed on the same layer, in order to insulate the first electrodes 6 and the second electrodes 7 from each other, the second electrodes 7 are electrically connected by the bridge wires 8, and the insulating layer 9 is disposed between the bridge wires 8 and the first electrodes 6.
Optionally, as shown in fig. 6, the display panel further includes: the touch control lines 10 include touch control sensing touch control lines 101 and touch control driving touch control lines 102, a row of first electrodes 6 is electrically connected with the touch control sensing touch control lines 101, and a column of second electrodes 7 is electrically connected with the touch control driving touch control lines 102.
Specifically, as shown in fig. 6, the first electrode 6 may be electrically connected to at least one touch sensing touch line 101, and the second electrode 7 may be electrically connected to at least one touch driving touch line 102, where the touch sensing touch line 101 is used for transmitting a touch sensing signal, and the touch driving touch line 102 is used for transmitting a touch driving signal, for example, the operation modes of the first electrode 6 and the second electrode 7 are mutually capacitive, for example, the first electrode 6 is a touch sensing electrode, the second electrode 7 is a touch driving electrode, the first electrode 6 is used for outputting a touch sensing signal, the second electrode 7 is used for receiving a touch driving signal, so as to determine an X-axis coordinate and a Y-axis coordinate of a touch subject (e.g. a finger) on the display panel according to the touch driving signal and the touch sensing signal, and the X-axis coordinate and the Y-axis coordinate may determine a point on the plane where the display panel is located, the point is the position where the touch operation occurs.
It should be noted that one end of the first electrode 6 may be electrically connected to one touch sensing touch line 101, a second end of the first electrode 6 may be electrically connected to another touch sensing touch line 101, one end of the second electrode 7 may be connected to one touch driving touch line 102, and a second end of the second electrode 7 may be electrically connected to another touch driving touch line 102, and after the above connection manner is adopted, the voltage drop generated by the first electrode 6 and the second electrode 7 may be reduced, so as to improve the touch performance of the touch layer 3.
Alternatively, as shown in fig. 3, 4 and 5, the protruding portion of the first touch electrode 311 is in a zigzag shape.
It should be noted that the specific shape of the protruding portion is not specifically limited in the embodiment of the present invention, but a shape design that can substantially equalize the facing area of the edge of each touch electrode 31 located in the first touch sensing area 4 and the facing area of the edge of each touch electrode 31 located in the second touch sensing area 5 is within the protection scope of the embodiment of the present invention.
Optionally, fig. 8 is a partial top view of another display panel according to an embodiment of the present invention, as shown in fig. 8, an area of an orthogonal projection of the second touch electrode 312 on the display panel is smaller than an area of an orthogonal projection of the touch electrode 31 located in the second display region 12 on the display panel.
Specifically, as shown in fig. 8, the orthographic projection area of the touch electrode 31 in the first display area 11 on the display panel is smaller than the orthographic projection area of the touch electrode in the second display area 12 on the display panel, and after the above design is adopted, the density of the touch electrodes 31 in the first display area 11 is increased, and under the condition that the area of the first touch sensing area 4 is not changed, the number of the touch electrodes 31 included in one first touch sensing area 4 is larger than the number of the touch electrodes 31 included in the second touch sensing area 5, and after the above design is adopted, the area of the gap of each first touch electrode 311 is relatively smaller, so as to reduce the influence of the gap of the first touch electrode 311 on the mutual capacitance in the first touch sensing area 4, compared with the prior art (under the condition that the areas of the complete touch electrodes at each position are equal, the effect of the notch of the first touch electrode on the mutual capacitance in the first touch sensing area is larger), compared with the prior art, the mutual capacitance of the first touch sensing area 4 in the embodiment of the present invention is less reduced, and since the facing area of the edge of each touch electrode 31 in the area can be increased after the density of the touch electrode 31 in the unit area is increased, when each touch electrode 31 in the first touch sensing area 4 has no notch, compared with the prior art (the coverage area of each touch electrode is equal, and the density of the touch electrode in the first display area is smaller), the embodiment of the present invention can increase the mutual capacitance in the first touch sensing area 4 to a certain extent, in both aspects, the first touch electrode 311 has a notch, and the mutual capacitance corresponding to the first touch sensing area 4 is kept substantially unchanged under the condition that the density of the touch electrode 31 is increased, therefore, the touch performance of the first touch sensing area 4 is relatively good, and the design is favorable for improving the uniformity of the touch performance of the display panel.
Alternatively, fig. 9 is a partial top view of a second display region provided in an embodiment of the invention, as shown in fig. 8 and 9 (refer to fig. 7 for cross-sectional views of fig. 8 and 9), a plurality of touch electrodes are disposed in the same layer, the touch electrode 31 located in the first display region 11 includes a first electrode 6 electrically connected along a row direction and a second electrode 7 electrically connected along a column direction by a bridge wire 8, and an insulating layer 9 is disposed between the bridge wire 8 and the first electrode 6, wherein at least two rows of the first electrodes 6 are electrically connected in parallel, and at least two columns of the second electrodes 7 are electrically connected in parallel; the touch electrodes 31 in the second display area 12 include third electrodes 13 electrically connected along the row direction and fourth electrodes 14 electrically connected along the column direction through bridging wires 8, an insulating layer 9 is disposed between the bridging wires 8 and the third electrodes 13, at least two rows of first electrodes 6 are electrically connected with a corresponding row of third electrodes 13 to form row electrodes, and at least two columns of second electrodes 7 are electrically connected with a corresponding column of fourth electrodes 14 to form column electrodes.
Specifically, as shown in fig. 8 and 9, after the above-mentioned electrical connection manner is adopted, it is beneficial to keep the touch performance corresponding to each touch sensing area unchanged, and the principle can refer to the above description for fig. 8, and is not described in detail here.
Alternatively, fig. 10 is a partial top view of another display panel according to an embodiment of the present invention, fig. 11 is a cross-sectional view along the direction BB 'in fig. 10, fig. 12 is a partial top view of another second display region according to an embodiment of the present invention, fig. 13 is a cross-sectional view along the direction CC' in fig. 12, the touch layer 3 includes a first touch layer, a second touch layer, and an insulating layer 9 located between the first touch layer and the second touch layer, on the first touch layer, the touch electrodes 31 located in the first display region 11 are electrically connected along the row direction, at least two rows of the touch electrodes 31 are electrically connected in parallel, the touch electrodes 31 located in the second display region 12 are electrically connected along the row direction, and at least two rows of the touch electrodes 31 are electrically connected with a corresponding row of the touch electrodes 31 to form a row electrode; on the second touch layer, the touch electrodes 31 in the first display area 11 are electrically connected in the row direction, at least two rows of the touch electrodes 31 are electrically connected in parallel, the touch electrodes 31 in the second display area 12 are electrically connected in the row direction, and at least two rows of the touch electrodes 31 are electrically connected with the corresponding row of the touch electrodes 31 to form row electrodes.
Specifically, as shown in fig. 10 to 13, the touch electrodes 31 electrically connected in the row direction in the first display region 11 constitute first electrodes 6, the touch electrodes 31 electrically connected in the column direction in the first display region 11 constitute second electrodes 7, the touch electrodes 31 electrically connected in the row direction in the second display region 12 constitute third electrodes 13, the touch electrodes 31 electrically connected in the column direction in the second display region 12 constitute fourth electrodes 14, and two adjacent first electrodes 6 are electrically connected in parallel, then electrically connected in series with the corresponding third electrode 13 constitute a row electrode, two adjacent second electrodes 7 are electrically connected in parallel, then electrically connected in series with the corresponding fourth electrode 14 constitute a column electrode, wherein the first electrodes 6 and the third electrodes 13 are disposed in the same layer, the second electrodes 7 and the fourth electrodes 14 are disposed in the same layer, the first electrode 6 and the second electrode 7 are arranged in different layers, the third electrode 13 and the fourth electrode 14 are arranged in different layers, the insulating layer 9 is arranged between the first electrode 6 and the second electrode 7 in order to insulate the first electrode 6 and the second electrode 7 from each other, and the insulating layer 9 is arranged between the third electrode 13 and the fourth electrode 14 in order to insulate the third electrode 13 and the fourth electrode 14 from each other, for example, the row electrode is located on the first touch layer, the column electrode is located on the second touch layer, and the insulating layer 9 is arranged between the first touch layer and the second touch layer, after the arrangement manner shown in fig. 10 to 13 is adopted, it is beneficial to keep the touch performance corresponding to each touch sensing area unchanged, and the principle can refer to the description of fig. 8, and will not be described in detail herein.
Optionally, as shown in fig. 10 to 13, the display panel further includes: the touch control lines 10 include touch sensing touch control lines 101 and touch driving touch control lines 102, one row electrode is electrically connected to the touch sensing touch control lines 101, and one column electrode is electrically connected to the touch driving touch control lines 102.
The working principle of fig. 10 to 13 can refer to the corresponding description of fig. 6, and will not be described in detail herein.
Alternatively, as shown in fig. 1 to 13, the touch electrode 31 works in a mutual capacitance manner.
The working principle of the touch electrode 31 being a mutual capacitance type working principle can refer to the corresponding description in fig. 6, and will not be described in detail herein.
Alternatively, as shown in fig. 1 to 13, the second touch electrode 312 and the touch electrodes located in the second display area 12 are block-shaped electrodes.
Optionally, the display panel further includes an encapsulation layer, and the touch layer 3 is disposed on the encapsulation layer.
Specifically, the encapsulating layer is used for isolating water and oxygen, so that the corrosion speed of external water and oxygen to the internal structure of the display panel is favorably reduced, when the touch layer 3 is arranged on the encapsulating layer, the touch layer 3 and a touch main body (such as a finger) can be closer, and the touch sensitivity of the touch layer 3 is favorably higher.
Fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 14, the display device includes the display panel 100, and the working principle of the display panel 100 is described in detail above and is not repeated herein.
It should be noted that the display device according to the embodiment of the present invention may include, but is not limited to, a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP3 player, an MP4 player, a smart watch, an in-vehicle display, and the like.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (13)
1. A display panel, comprising:
a display area comprising a first display area and a second display area at least partially surrounding the first display area;
a non-display area including a first area embedded in the first display area and a second area surrounding the display area and the first area;
the touch layer is located in the display area and comprises a plurality of touch electrodes distributed in an array mode, the first display area comprises a first touch electrode and a second touch electrode, the first touch electrode is provided with a notch, the second touch electrode is not provided with a notch, and the touch electrode located in the second display area is not provided with a notch;
the first display area corresponds to a plurality of first touch sensing areas, the second display area corresponds to a plurality of second touch sensing areas, and the sum of mutual capacitances between a first touch electrode and a second touch electrode in any one first touch sensing area is approximately equal to the sum of mutual capacitances between touch electrodes in any one second touch sensing area;
the opposite area of the edge of each touch electrode in the first touch sensing area is approximately equal to the opposite area of the edge of each touch electrode in the second touch sensing area.
2. The display panel of claim 1, wherein an area of an orthographic projection of the second touch electrode on the display panel is equal to an area of an orthographic projection of the touch electrode located in the second display region on the display panel, two adjacent pairs of the first touch electrodes are provided with protrusions, and the protrusions of the two adjacent pairs of the first touch electrodes are arranged in an insertion manner.
3. The display panel according to claim 2, wherein the touch electrodes are disposed on the same layer, the touch electrodes include first electrodes electrically connected in a row direction and second electrodes electrically connected in a column direction by a bridge wire, and an insulating layer is disposed between the bridge wire and the first electrodes.
4. The display panel of claim 3, wherein the display panel further comprises:
the touch control lines comprise touch control induction touch control lines and touch control driving touch control lines, one row of the first electrodes is electrically connected with the touch control induction touch control lines, and one row of the second electrodes is electrically connected with the touch control driving touch control lines.
5. The display panel according to claim 2, wherein the protruding portion of the first touch electrode is saw-tooth shaped.
6. The display panel of claim 1, wherein an area of an orthographic projection of the second touch electrode on the display panel is smaller than an area of an orthographic projection of the touch electrode located in the second display region on the display panel.
7. The display panel according to claim 6, wherein the plurality of touch electrodes are disposed on the same layer, the touch electrodes in the first display region include first electrodes electrically connected in a row direction and second electrodes electrically connected in a column direction by a bridge wire, an insulating layer is disposed between the bridge wire and the first electrodes, wherein,
at least two rows of the first electrodes are electrically connected in parallel, and at least two columns of the second electrodes are electrically connected in parallel; the touch control electrodes in the second display area comprise third electrodes electrically connected along the row direction and fourth electrodes electrically connected along the column direction through bridge-crossing wires, an insulating layer is arranged between the bridge-crossing wires and the third electrodes, at least two rows of first electrodes are electrically connected with the corresponding one row of third electrodes to form row electrodes, and at least two columns of second electrodes are electrically connected with the corresponding one column of fourth electrodes to form column electrodes.
8. The display panel according to claim 6, wherein the touch layer includes a first touch layer, a second touch layer, and an insulating layer between the first touch layer and the second touch layer, on the first touch layer, the touch electrodes in the first display region are electrically connected in a row direction, at least two rows of the touch electrodes are electrically connected in parallel, the touch electrodes in the second display region are electrically connected in the row direction, and the at least two rows of the touch electrodes are electrically connected with the corresponding row of the touch electrodes to form row electrodes; on the second touch layer, the touch electrodes located in the first display area are electrically connected in the row direction, at least two rows of the touch electrodes are electrically connected in parallel, the touch electrodes located in the second display area are electrically connected in the row direction, and the at least two rows of the touch electrodes are electrically connected with the corresponding row of the touch electrodes to form row electrodes.
9. The display panel according to claim 7 or 8, wherein the display panel further comprises:
the touch control line comprises a touch control induction touch control line and a touch control driving touch control line, one row electrode is electrically connected with the touch control induction touch control line, and one column electrode is electrically connected with the touch control driving touch control line.
10. The display panel of claim 1, wherein the touch electrodes operate in a mutual capacitance manner.
11. The display panel according to claim 2 or 6, wherein the second touch electrode and the touch electrode located in the second display region are block electrodes.
12. The display panel of claim 1, wherein the display panel further comprises an encapsulation layer, and the touch layer is disposed on the encapsulation layer.
13. A display device characterized by comprising the display panel according to any one of claims 1 to 12.
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| CN201711225362.0A CN107885389B (en) | 2017-11-29 | 2017-11-29 | Display panel and display device |
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| CN201711225362.0A CN107885389B (en) | 2017-11-29 | 2017-11-29 | Display panel and display device |
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| CN107885389B true CN107885389B (en) | 2021-06-04 |
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| CN109683751B (en) | 2019-01-04 | 2020-05-26 | 合肥鑫晟光电科技有限公司 | Touch substrate, manufacturing method thereof and display device |
| CN110308821B (en) * | 2019-06-28 | 2021-05-18 | 联想(北京)有限公司 | Touch response method and electronic equipment |
| CN110308823B (en) * | 2019-07-04 | 2023-09-22 | 上海天马微电子有限公司 | Special-shaped display panel and display device |
| CN116501196A (en) * | 2019-12-03 | 2023-07-28 | 武汉天马微电子有限公司 | Display panel and display device |
| EP4123435A4 (en) | 2020-03-19 | 2023-04-26 | BOE Technology Group Co., Ltd. | Touch sensor and display device |
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| WO2021184309A1 (en) | 2020-03-19 | 2021-09-23 | 京东方科技集团股份有限公司 | Touch sensor and display device |
| CN113692567B (en) | 2020-03-19 | 2024-03-12 | 京东方科技集团股份有限公司 | Touch sensor and display device |
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