CN109884828B - Display panel and mobile terminal - Google Patents
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- CN109884828B CN109884828B CN201910310386.9A CN201910310386A CN109884828B CN 109884828 B CN109884828 B CN 109884828B CN 201910310386 A CN201910310386 A CN 201910310386A CN 109884828 B CN109884828 B CN 109884828B
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Abstract
The invention provides a display panel and a mobile terminal, relates to the technical field of display, and aims to solve the problem that the convenience and the practicability are low in the use process of an NFC function in the prior art. The display panel comprises a substrate base plate and a common electrode layer arranged on the substrate base plate, wherein the common electrode layer comprises a plurality of slit electrodes corresponding to a plurality of sub-pixels of the display panel respectively, and each slit electrode is provided with a plurality of slits; the common electrode layer comprises at least two split electrode strips which are arranged in parallel, a split gap is arranged between every two adjacent split electrode strips, and the split gap is positioned in a gap area between the slit electrodes or at the position of the slit electrodes. The display panel is used in a mobile terminal with an NFC function.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a mobile terminal.
Background
Near Field Communication (NFC) technology is a new Communication technology, and combines a non-contact sensing technology and a wireless connection technology, so that data transmission and exchange can be realized in a short distance, and the NFC technology has the advantages of high transmission security, rapid response, and the like, and is being gradually applied to mobile payment, identity recognition, anti-counterfeiting, door control, and the like.
The NFC system generally includes an NFC chip and an NFC coil, and when a varying current passes through the NFC coil of a terminal device initiating a connection, a magnetic field is generated, and the magnetic field is electromagnetically coupled with an induced magnetic field of a target terminal device to be connected, so that the two devices are successfully mated and connected, and data exchange can be performed.
However, in the prior art, in order to ensure the pairing connection effect of the NFC function of the terminal device, the NFC coil is usually disposed on the back of the terminal device, which will cause the user to turn over the terminal device initiating the connection first when using the NFC function, so that the back of the terminal device is close to the target terminal device to be connected, which causes inconvenience. Especially when the terminal equipment that needs to carry out the NFC connection is wearable terminal equipment, need take off this wearable terminal equipment earlier, further increased the inconvenience in the use, reduced the practicality.
Disclosure of Invention
In view of the above problems in the prior art, embodiments of the present invention provide a display panel and a mobile terminal to solve the problem of low convenience and practicability in the usage process of the NFC function in the prior art.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a display panel, including a substrate, and a common electrode layer disposed on the substrate, where the common electrode layer includes a plurality of slit electrodes respectively corresponding to a plurality of sub-pixels of the display panel, and each slit electrode has a plurality of slits; the common electrode layer comprises at least two split electrode strips which are arranged in parallel, a split gap is arranged between every two adjacent split electrode strips, and the split gap is located in a gap area between the slit electrodes or is located at the slit position of the slit electrodes.
In the display panel, the common electrode in the common electrode layer is divided into at least two divided electrode strips, and a dividing gap is formed between every two adjacent divided electrode strips, so that the whole metal mesh structure in the common electrode layer is damaged, and the shielding effect of the common electrode layer on signals to pass through is reduced. Therefore, the display panel can weaken the shielding of the signal transmitted by the NFC coil when the public electrode layer is electrified, so that the signal transmitted by the NFC coil is less in loss after passing through the display panel, the terminal equipment can realize communication on the display surface side of the display panel, a user can use the NFC function without turning or taking down the terminal equipment, and the convenience and the practicability in the use process are improved.
Based on the above technical solution, in some embodiments, the common electrode layer further includes a frame electrode, the frame electrode includes a first side and a second side that are opposite to each other, and the first side and the second side are respectively located at two opposite sides of the at least two divided electrode strips and are perpendicular to the at least two divided electrode strips; the at least two split electrode bars include at least one first split electrode bar and at least one second split electrode bar; one end of the at least one first split electrode strip is connected with the first edge, and a gap is formed between the other end of the at least one first split electrode strip and the second edge; one end of the at least one second split electrode strip is connected with the second edge, and a gap is formed between the other end of the at least one second split electrode strip and the first edge.
In some embodiments, the at least two divided electrode stripes are parallel to the row direction of the plurality of sub-pixel arrangements, and an orthographic projection of each divided electrode stripe on the substrate covers an area of at least one row of sub-pixels; the display panel further comprises a plurality of first black matrix strips arranged on one side of the common electrode layer facing or back to the substrate base plate, the plurality of first black matrix strips are parallel to the row direction, and the orthographic projection of the plurality of first black matrix strips on the substrate base plate covers the orthographic projection of the segmentation gap on the substrate base plate.
In some embodiments, the at least two divided electrode stripes are parallel to the column direction of the plurality of sub-pixel arrangements, and the orthographic projection of each divided electrode stripe on the substrate covers the area of at least one column of sub-pixels; the display panel further comprises a plurality of second black matrix strips arranged on one side of the substrate base plate, wherein the common electrode layer faces or is back to the substrate base plate, the second black matrix strips are parallel to the column direction, and the orthographic projections of the second black matrix strips on the substrate base plate cover the orthographic projections of the segmentation gaps on the substrate base plate.
In some embodiments, an orthographic projection of a dividing gap between every two adjacent dividing electrode strips on the substrate base plate is overlapped with an orthographic projection of a plurality of slits of the plurality of slit electrodes on the substrate base plate in a one-to-one correspondence manner.
In some embodiments, the at least one first split electrode bar and the at least one second split electrode bar cover the same number of rows or columns of sub-pixels in an orthographic projection of the at least one first split electrode bar and the at least one second split electrode bar on the substrate base plate.
In some embodiments, the number of the at least one first split electrode stripes is equal to the number of the at least one second split electrode stripes; the number of the at least one first divisional electrode bar or the number N of the at least one second divisional electrode bar is: n/2a is an integer part; wherein n represents the number of sub-pixel rows formed by arranging the plurality of sub-pixels or the number of sub-pixel columns formed by arranging the plurality of sub-pixels, and a represents the number of sub-pixel rows or sub-pixel columns covered by the orthographic projection of each first divided electrode strip and each second divided electrode strip on the substrate.
In some embodiments, a is 1, and the at least one first divisional electrode bar and the at least one second divisional electrode bar are alternately arranged.
In some embodiments, the border electrode further comprises third and fourth opposing sides, the third and fourth sides being located on opposite sides of and parallel to the at least two split electrode bars, respectively; at least one opening is arranged on at least one of the first edge, the second edge, the third edge and the fourth edge, and the opening is positioned at a position outside the connection position of the frame electrode and the at least two divided electrode strips.
In a second aspect, an embodiment of the present invention provides a mobile terminal, including the display panel according to the first aspect, where the display panel includes a display surface and a back surface opposite to the display surface; and a near field communication unit provided on a back surface side of the display panel, wherein a signal emitted from the near field communication unit can propagate to a display surface side of the display panel through a division gap between at least two divided electrode bars of a common electrode layer of the display panel.
The beneficial effects that the mobile terminal can produce are the same as the beneficial effects of the display panel provided by the first aspect, and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic view of a first structure of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second structure of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a third structure of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a fourth structure of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display panel according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an NFC component according to an embodiment of the present invention.
Description of reference numerals:
1-dividing the electrode strip; 101-a first split electrode strip; 102-second split electrode strips;
2-a frame electrode; 201-first side; 202-a second edge;
203-third side; 204-fourth side; 3-a grid line;
4-a data line; 5-pixel column; 51-blue subpixel columns;
6-first black matrix stripes; 7-second black matrix stripes; 100-a display panel;
110-substrate base plate; 120-a common electrode layer; 1201-slit electrodes;
200-a touch panel; 300-a backlight assembly; 400-near field communication means;
500-backlight iron frame; 8-a coil; 9-a sensing electrode;
10-drive electrodes.
Detailed Description
As described in the background art, since the NFC coil is usually disposed on the back of the terminal device, a user needs to flip the terminal device when using the NFC function, so that the NFC coil area on the back of the terminal device is close to the target terminal device to be connected.
In the related art, in order to overcome the inconvenience, the NFC coil is separately disposed above the display screen, or the NFC coil and the display screen are integrated together, but the NFC coil needs to occupy a certain space, so that the frame of the display screen can be increased or the aperture opening ratio of the display screen can be reduced by the two schemes, which are contrary to the development trend of electronic devices. Meanwhile, the space for placing the NFC coil is small, so that the design and installation of the NFC coil are difficult.
The inventor of the present invention has found through research that, when the NFC coil is disposed on the side of the display panel facing away from the display surface, the design and installation of the NFC coil are less limited, and the display panel is not affected. However, as shown in fig. 1, the common electrode layer 120 of the display panel in the prior art is usually a full-surface metal structure to provide the same common voltage signal for a plurality of sub-pixels of the display panel. The common electrode layer 120 is provided with a plurality of slit electrodes 1201 in regions corresponding to the plurality of sub-pixels P, the plurality of slit electrodes 1201 correspond to the plurality of sub-pixels P one to one, and each slit electrode 1201 can act together with a pixel electrode of the corresponding sub-pixel P in the display process of the display panel to form a liquid crystal electric field. However, due to the existence of the slits a in the plurality of slit electrodes 1201, the common electrode layer 120 is a whole metal mesh structure as a whole, and when the whole metal mesh structure is energized, a shielding effect is generated on a signal emitted by the NFC coil, so that the signal becomes weaker after passing through the display panel, and thus the device cannot communicate from the display surface side of the display panel.
Based on the above research, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to fall within the scope of the present invention.
As shown in fig. 2 and fig. 3, in some embodiments of the present invention, a display panel 100 is provided, which includes a substrate 110 and a common electrode layer 120 disposed on the substrate 110, wherein the common electrode layer 120 includes a plurality of slit electrodes 1201 corresponding to a plurality of sub-pixels P of the display panel 100, and each slit electrode 1201 has a plurality of slits a.
The common electrode layer 120 includes at least two divided electrode bars 1 arranged in parallel, and a dividing slit S is provided between every two adjacent divided electrode bars 1, and the dividing slit S is located in a gap region between the slit electrodes 1201, or the dividing slit S is located at a slit a position of the slit electrodes 1201.
Compared with the prior art in which the common electrode layer 120 is provided with a metal mesh structure on the whole surface, the common electrode in the common electrode layer 120 of the display panel 100 is divided into at least two parallel divided electrode strips 1, and a dividing gap S is provided between every two adjacent divided electrode strips 1, so that the metal mesh structure on the whole surface in the common electrode layer 120 is broken, and the shielding effect on signals to pass through when the common electrode layer 120 is electrified is reduced. Therefore, the display panel 100 weakens the shielding of the common electrode layer 120 on the signal transmitted by the NFC coil, so that the signal transmitted by the NFC coil is less lost after passing through the display panel, and therefore, the terminal device can realize communication on the display surface side of the display panel, and therefore, the user can use the NFC function without turning or taking down the terminal device, and convenience and practicability in the use process are improved.
It should be noted that, since the plurality of slit electrodes 1201 and the plurality of sub-pixels P are in a one-to-one correspondence relationship, and the projections of the slit electrodes 1201 and the sub-pixels P on the substrate 110 can be approximately regarded as overlapping, when the dividing slit S is located in the gap region between the plurality of slit electrodes 1201, the orthogonal projection of the dividing slit S on the substrate 110 is located at the interval between the orthogonal projections of every two adjacent sub-pixels P on the substrate 110.
Based on the above technical solution, in some embodiments of the present invention, as shown in fig. 2 and fig. 3, the common electrode layer 120 may further include a frame electrode 2, the frame electrode 2 includes a first side 201 and a second side 202 opposite to each other, and the first side 201 and the second side 202 are respectively located on two opposite sides of the at least two divided electrode bars 1 and perpendicular to the at least two divided electrode bars 1.
The at least two divided electrode strips 1 include at least one first divided electrode strip 101 and at least one second divided electrode strip 102, one end p of the at least one first divided electrode strip 101 is connected to the first side 201, and a gap is formed between the other end q and the second side 202. One end i of at least one second split electrode bar 102 is connected to the second side 202, and the other end j has a gap with the first side 201.
In the display panel 100, the frame electrode 2 serves to draw out at least two divided electrode bars 1. In the above display panel, the first divided electrode stripes 101 are drawn through the first sides 201 of the frame electrodes 2, and the second divided electrode stripes 102 are drawn through the second sides 202 of the frame electrodes 2.
Illustratively, as shown in fig. 2, at least two divided electrode bars 1 are led out through the frame electrode 2 and connected to an IC (Integrated Circuit) chip, thereby realizing transmission of electrical signals. The electrical signal may be a common electrode signal.
In the display panel 100, a gap is formed between the other end q of the at least one first split electrode strip 101 and the second side 202, so that the number of gaps which are beneficial for signals to pass through in the common electrode layer 120 is further increased, and the area of a metal shielding structure of the common electrode layer 120 is reduced, so that shielding of signals emitted by an NFC coil when the common electrode layer 120 is powered on is further reduced, and the communication effect of the terminal device on the display surface side of the display panel is better.
In some embodiments of the present invention, as a possible design of the at least two divided electrode bars 1, as shown in fig. 2, the at least two divided electrode bars 1 are parallel to a row direction uv in which the plurality of sub-pixels P are arranged, and an orthographic projection of each divided electrode bar 1 on the substrate base 110 covers an area of at least one row of the sub-pixels P. The display panel 100 may further include a plurality of first black matrix stripes 6 disposed on a side of the common electrode layer 120 facing or away from the substrate base 110, the plurality of first black matrix stripes 6 being parallel to a row direction uv in which the plurality of sub-pixels P are arranged, and an orthogonal projection of the plurality of first black matrix stripes 6 on the substrate base 110 covers an orthogonal projection of the dividing slits S on the substrate base 110.
Since fig. 2 is a plan view of the display panel 100, the first black matrix stripe 6, the dividing slit S and the gate line 3 are overlapped or partially overlapped in the drawing, and in order to show the first black matrix stripe 6, the dividing slit S and the gate line 3 in the drawing, the first black matrix stripe 6 in fig. 2 is illustrated in a semi-transparent form. In addition, other illustrations with the first black matrix stripes 6 are shown in this manner.
It should be noted that, as shown in fig. 2, the first black matrix strips 6 are usually disposed above or below the positions where the gate lines 3 of the display panel 100 are located, and an orthographic projection of the first black matrix strips 6 on the substrate 110 can cover an orthographic projection of the gate lines 3 of the display panel 100 on the substrate 110, so as to shield the gate lines 3 and avoid the gate lines 3 from affecting the aperture ratio of the display panel 100.
Since the gate line 3 is generally located at the interval between every adjacent two sub-pixel rows, the plurality of first black matrix stripes 6 are also generally located at the interval between every adjacent two sub-pixel rows, that is, the plurality of first black matrix stripes 6 are generally located at the gap region between the plurality of slit electrodes 1201. Therefore, when the orthographic projection of the plurality of first black matrix stripes 6 on the base substrate 110 covers the orthographic projection of the dividing slit S on the base substrate 110, the dividing slit S is a gap region between the plurality of slit electrodes 1201.
In the display panel 100 provided by the present invention, the dividing gaps S between the orthographic projections of every two adjacent dividing electrode strips 1 on the substrate 110 are disposed at the first black matrix strips 6, so that light leakage of the display panel 100 at the sub-pixels P close to the dividing gaps S can be avoided, and the aperture ratio of the display panel 100 can be ensured. For example, the width of the dividing slit S may be set to be equal to the width of the minimum process line.
In some embodiments of the present invention, as another possible design of the above-mentioned at least two divided electrode bars 1, as shown in fig. 4, the at least two divided electrode bars 1 are parallel to the column direction xy in which the plurality of sub-pixels P are arranged, and an orthographic projection of each divided electrode bar 1 on the substrate base 110 covers the area of at least one column of sub-pixels P. The display panel 100 may further include a plurality of second black matrix stripes 7 disposed on a side of the common electrode layer 120 facing or facing away from the substrate base 110, the plurality of second black matrix stripes 7 being parallel to the column direction xy, and an orthogonal projection of the plurality of second black matrix stripes 7 on the substrate base 110 covers an orthogonal projection of the dividing slits S on the substrate base 110.
Since fig. 4 is a plan view of the display panel 100, the second black matrix stripe 7, the dividing slit S, and the data line 4 are overlapped or partially overlapped in the drawing, and the first black matrix stripe 6 in fig. 4 is illustrated in a semi-transparent form in order to show the second black matrix stripe 7, the dividing slit S, and the data line 4 in the drawing. In addition, other illustrations with the second black matrix stripes 7 are shown in this way.
It should be noted that, as shown in fig. 4, the plurality of second black matrix stripes 7 are usually disposed above or below the data lines 4 of the display panel 100, and the orthographic projection of the plurality of second black matrix stripes 7 on the substrate 110 can cover the orthographic projection of the data lines 4 of the display panel 100 on the substrate 110, so as to block the data lines 4 and avoid the influence of the data lines 4 on the aperture ratio of the display panel 100.
Since the data line 4 is generally located at the interval between each adjacent two sub-pixel columns, the plurality of second black matrix stripes 7 are also generally located at the interval between each adjacent two sub-pixel columns, that is, the plurality of second black matrix stripes 7 are generally located at the gap regions between the plurality of slit electrodes 1201. Therefore, when the orthographic projection of the plurality of second black matrix stripes 7 on the base substrate 110 covers the orthographic projection of the dividing slit S on the base substrate 110, the dividing slit S is a gap region between the plurality of slit electrodes 1201.
In the display panel 100 provided by the present invention, the dividing gaps S between the orthographic projections of every two adjacent dividing electrode strips 1 on the substrate 110 are disposed at the plurality of second black matrix strips 7, so that light leakage of the display panel 100 at the sub-pixels P adjacent to the dividing gaps S can be avoided, and the aperture ratio of the display panel 100 can be ensured. For example, the width of the dividing slit S may be set to be equal to the width of the minimum process line.
For example, as shown in fig. 5, the above-described division slit S may be provided at the second black matrix stripe 7 at the interval between two adjacent pixel columns 5. The pixel column 5 may include 3 sub-pixel columns, and exemplarily, the 3 sub-pixel columns included in the pixel row 5 may be 1 red sub-pixel column, 1 blue sub-pixel column, and 1 green sub-pixel column, respectively.
In some embodiments of the present invention, as another possible design of the at least two split electrode bars 1, referring to fig. 3, the plurality of slits a of the slit electrode 1201 in the common electrode layer 120 are parallel to the column direction xy in which the plurality of sub-pixels P are arranged, the split slit S is parallel to the column direction xy in which the plurality of sub-pixels P are arranged, and the split slit S is located at the position of the slit a in the plurality of slit electrodes 1201.
The above-described "the dividing slit S is located at the slit a of the slit electrodes 1201" means that the dividing slit S passes through the slit a and the extending direction of the dividing slit S coincides with the extending direction of the slit a. In the display panel 100, since the plurality of slits a are present in the plurality of slit electrodes 1201, the division slits S are provided at the positions of the slits a in the plurality of slit electrodes 1201, and the common electrode layer 120 can be divided without affecting the aperture ratio of the display panel 100.
For example, referring to fig. 3, the dividing slit S may pass through the area of the blue sub-pixel column 51 in the plurality of sub-pixels P.
In some embodiments of the present invention, as another possible design of the at least two divided electrode strips 1, as shown in fig. 6, an orthographic projection of a dividing slit S between every two adjacent divided electrode strips 1 on the substrate 110 is overlapped with an orthographic projection of a plurality of slits a of a plurality of slit electrodes 1201 on the substrate 110 in a one-to-one correspondence manner, so as to further increase the number of slits in the common electrode layer 120 that are beneficial for signals to pass through, and reduce the area of a metal shielding structure formed by the common electrode, thereby further reducing shielding of signals emitted by the NFC coil when the common electrode layer 120 is powered on, and making the communication effect of the terminal device on the display surface side of the display panel better.
In some embodiments of the present invention, as shown in fig. 2 and 4, the orthogonal projection of the at least one first split electrode bar 101 and the at least one second split electrode bar 102 on the substrate base plate 110 covers the same number of rows or columns of sub-pixels. Since the number of the sub-pixel rows or the number of the sub-pixel columns connected to the first side 201 of the frame electrode 2 and the second side 202 of the frame electrode 2 are equal, the loads of the electric signals transmitted by the first side 201 and the second side 202 of the frame electrode 2 are equal, and thus the stability of the transmitted electric signals can be improved.
In some embodiments of the present invention, the number of the at least one first split electrode bar 101 is equal to the number of the at least one second split electrode bar 102, and the number of the at least one first split electrode bar 101 or the number N of the at least one second split electrode bar 102 is: n/2a is an integer part.
Where n represents the number of subpixel rows in which the plurality of subpixels P are arranged or the number of subpixel columns in which the plurality of subpixels P are arranged. a represents the number of sub-pixel rows or sub-pixel columns covered by the orthographic projection of each first split electrode bar 101 and each second split electrode bar 102 on the substrate base 110.
Note that, the number of the divided electrode bars 1 in the common electrode layer 120 at this time may be determined by the pixel resolution of the display panel 100.
For example, the pixel resolution of the display panel 100 is c × d, n represents the number of rows of sub-pixels P arranged, and n may be c; when n represents the number of subpixel rows in which the plurality of subpixels P are arranged, n can be 3 d.
Since the number of the at least one first split electrode bar 101 and the number of the at least one second split electrode bar 102 are equal, and the number of the sub-pixel rows or the number of the sub-pixel columns covered by the orthographic projections of each first split electrode bar 101 and each second split electrode bar 102 on the substrate 110 are equal (both are a), the load difference of the electrical signals transmitted by the first side 201 and the second side 202 of the frame electrode 2 is small, and thus the stability of the transmitted electrical signals can be improved.
In addition, when the value of N/2a is a non-integer, after the N first divisional electrode bars 101 and the N second divisional electrode bars 102 are formed, the common electrode layer 120 has a remaining portion that is not divided. Illustratively, the remaining portion may not be segmented; the remaining common electrode layer may also be divided into a third divided electrode stripe and a fourth divided electrode stripe.
The number of rows or columns of sub-pixels covered by the orthographic projections of the third divisional electrode stripes and the fourth divisional electrode stripes on the substrate 110 is equal, and the division gaps between the third divisional electrode stripes and the fourth divisional electrode stripes are located in the gap regions between the slit electrodes 1201. The third divisional electrode bar and the fourth divisional electrode bar are electrically connected to different sides of the frame electrode 2, respectively, to further reduce the difference in load of the electrical signals transmitted by the first side 201 and the second side 202 of the frame electrode 2.
For example, if the third divided electrode bar is electrically connected to the first side 201 of the frame electrode 2, the fourth divided electrode bar is electrically connected to the second side 202 of the frame electrode 2; as another example, if the third divided electrode bar is electrically connected to the second side 202 of the bezel electrode 2, the fourth divided electrode bar is electrically connected to the first side 201 of the bezel electrode 2.
As an example, in some embodiments, the value of a may be 1, and the at least one first split electrode bar 101 and the at least one second split electrode bar 102 may be alternately arranged. At this time, the common electrode is divided row by row in a sub-pixel row unit, or divided column by column in a sub-pixel row unit, so that the number of gaps which are beneficial for signals to pass through in the common electrode layer 120 can be further increased, the area of a metal shielding structure formed by the common electrode is reduced, the shielding of the common electrode layer 120 on the signals emitted by the NFC coil when being electrified is further weakened, and the communication effect of the terminal device on the display surface side of the display panel is better.
In addition, since the at least one first split electrode bar 101 and the at least one second split electrode bar 102 may be alternately arranged, the distribution of the loads of the electrical signals transmitted on the first side 201 and the second side 202 of the frame electrode 2 is relatively uniform, and thus the stability of the transmitted electrical signals can be further improved.
In some embodiments of the present invention, as a possible design of the display panel 100, as shown in fig. 2 to fig. 6, the frame electrode 2 may further include a third side 203 and a fourth side 204 opposite to each other, where the third side 203 and the fourth side 204 are respectively located at two opposite sides of the at least two divided electrode bars 1 and are parallel to the at least two divided electrode bars 1, at least one of the first side 201, the second side 202, the third side 203, and the fourth side 204 of the frame electrode 2 is provided with at least one opening O, and the opening O is located at a position other than a connection position of the frame electrode 2 and the at least two divided electrode bars 1. The setting of opening O on frame electrode 2 has further increased the gap quantity that does benefit to the NFC signal to pass in the common electrode layer 120, also can further weaken the shielding that the signal that the public electrode layer 120 when circular telegram caused to the NFC coil transmission, makes equipment side communication connection's at the display screen effect better.
In another embodiment of the present invention, a mobile terminal is further provided, as shown in fig. 7, the mobile terminal includes the display panel 100, and the display panel 100 includes a display surface B and a back surface C opposite to the display surface B. The mobile terminal further includes a near field communication part 400 disposed on the rear surface C side of the display panel 100, and a signal emitted from the near field communication part 400 can propagate toward the display surface B side of the display panel 100 through the dividing gap S between at least two divided electrode bars 1 of the common electrode layer of the display panel 100.
The mobile terminal has the same advantages as the display panel 100, and will not be described herein.
In some embodiments of the present invention, as a possible design, as shown in fig. 7, the mobile terminal may further include: a backlight assembly 300 disposed at a side of the near field communication part 400 facing the display panel 100, and a backlight bezel 500 disposed at a side of the near field communication part 400 facing away from the display panel 100.
In this mobile terminal, since the backlight assembly 300 is disposed between the display panel 100 and the near field communication part 400, it is possible to prevent the near field communication part 400 from affecting the propagation of the light emitted from the backlight assembly 300 to the display panel 100 side, thereby preventing the near field communication part 400 from affecting the display effect of the display panel 100. In addition, since the backlight bezel 500 is disposed on the side of the near field communication part 400 facing away from the display panel 100, the backlight bezel 500 can be prevented from affecting the propagation of the signal emitted by the near field communication part 400 to the display panel 100 side, thereby improving the communication effect.
In some embodiments of the present invention, as shown in fig. 8, there is also provided an NFC communication component, which may include a coil 8, an inductive electrode 9, and a driving electrode 10, wherein one end of the coil 8 is electrically connected to the inductive electrode 9, and the other end of the coil 8 is electrically connected to the driving electrode 10. The coil 8 may be arranged to be wound around the induction electrode 9 and the drive electrode 10.
For example, in the NFC communication component, the sensing electrode 9 and/or the driving electrode 10 may be rectangular, or may be any other shape, and is not limited herein.
In some embodiments of the present invention, the near field communication part 400 of the mobile terminal may include the NFC communication part described above.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A display panel comprises a substrate base plate and a common electrode layer arranged on the substrate base plate, and is characterized in that the common electrode layer comprises a plurality of slit electrodes corresponding to a plurality of sub-pixels of the display panel respectively, and each slit electrode is provided with a plurality of slits;
the common electrode layer comprises at least two split electrode strips which are arranged in parallel, a split gap is arranged between every two adjacent split electrode strips, and the split gap is positioned in a gap area between the slit electrodes or at the position of the slit electrodes;
the common electrode layer further comprises a frame electrode, the frame electrode comprises a first edge and a second edge which are opposite, the first edge and the second edge are respectively positioned at two opposite sides of the at least two divided electrode strips and are perpendicular to the at least two divided electrode strips;
the at least two split electrode bars include at least one first split electrode bar and at least one second split electrode bar; one end of the at least one first split electrode strip is connected with the first edge, and a gap is formed between the other end of the at least one first split electrode strip and the second edge; one end of the at least one second split electrode strip is connected with the second edge, and a gap is formed between the other end of the at least one second split electrode strip and the first edge.
2. The display panel according to claim 1, wherein the at least two divided electrode stripes are parallel to a row direction in which the plurality of sub-pixels are arranged, and an orthographic projection of each of the divided electrode stripes on the substrate covers an area of at least one row of sub-pixels;
the display panel further comprises a plurality of first black matrix strips arranged on one side of the common electrode layer facing or back to the substrate base plate, the plurality of first black matrix strips are parallel to the row direction, and the orthographic projection of the plurality of first black matrix strips on the substrate base plate covers the orthographic projection of the segmentation gap on the substrate base plate.
3. The display panel according to claim 1, wherein the at least two divided electrode stripes are parallel to a column direction in which the plurality of sub-pixels are arranged, and an orthographic projection of each of the divided electrode stripes on the substrate covers an area of at least one column of sub-pixels;
the display panel further comprises a plurality of second black matrix strips arranged on one side of the substrate base plate, wherein the common electrode layer faces or is back to the substrate base plate, the second black matrix strips are parallel to the column direction, and the orthographic projections of the second black matrix strips on the substrate base plate cover the orthographic projections of the segmentation gaps on the substrate base plate.
4. The display panel according to claim 1, wherein an orthogonal projection of a dividing slit between every two adjacent dividing electrode bars on the substrate base plate overlaps with an orthogonal projection of a plurality of slits of the plurality of slit electrodes on the substrate base plate in a one-to-one correspondence.
5. The display panel of claim 1, wherein the orthographic projection of the at least one first split electrode bar and the at least one second split electrode bar on the substrate cover the same number of rows or columns of sub-pixels.
6. The display panel according to claim 5, wherein the at least one first divisional electrode bar is equal in number to the at least one second divisional electrode bar;
the number of the at least one first divisional electrode bar or the number N of the at least one second divisional electrode bar is: n/2a is an integer part; wherein n represents the number of sub-pixel rows formed by arranging the plurality of sub-pixels or the number of sub-pixel columns formed by arranging the plurality of sub-pixels, and a represents the number of sub-pixel rows or sub-pixel columns covered by the orthographic projection of each first divided electrode strip and each second divided electrode strip on the substrate.
7. The display panel according to claim 6, wherein a is 1, and the at least one first divisional electrode bar and the at least one second divisional electrode bar are alternately arranged.
8. The display panel according to any one of claims 1 to 7, wherein the bezel electrode further comprises third and fourth opposing sides, the third and fourth sides being located on two opposing sides of and parallel to the at least two split electrode bars, respectively;
at least one opening is arranged on at least one of the first edge, the second edge, the third edge and the fourth edge, and the opening is positioned at a position outside the connection position of the frame electrode and the at least two divided electrode strips.
9. A mobile terminal, comprising:
the display panel of any one of claims 1 to 8, comprising a display surface and a back surface opposite the display surface;
and a near field communication unit provided on a back surface side of the display panel, wherein a signal emitted from the near field communication unit can propagate to a display surface side of the display panel through a division gap between at least two divided electrode bars of a common electrode layer of the display panel.
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| CN201910310386.9A CN109884828B (en) | 2019-04-17 | 2019-04-17 | Display panel and mobile terminal |
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