CN111681554B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN111681554B CN111681554B CN202010623320.8A CN202010623320A CN111681554B CN 111681554 B CN111681554 B CN 111681554B CN 202010623320 A CN202010623320 A CN 202010623320A CN 111681554 B CN111681554 B CN 111681554B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0067—Devices for protecting against damage from electrostatic discharge
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Abstract
The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to avoid the cutting of devices on the basis of meeting the design requirement of a narrow frame of a special-shaped display panel by reasonably distributing the devices in a non-display area of the display panel and ensure the normal work of the special-shaped display panel. The edge of the display panel comprises a special-shaped corner and a straight line edge connected with the special-shaped corner; the display panel comprises a display area and a first non-display area; the first non-display area is positioned between the straight line edge and the display area; the display area comprises a plurality of first signal lines which are arranged along a first direction and extend along a second direction; the extension line of the first signal line passes through the special-shaped corner; the first non-display area comprises a plurality of first electrostatic protection units electrically connected with the first signal wires; along the first direction, the distance between two adjacent first electrostatic protection units is smaller than the distance between two adjacent first signal lines.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
With the continuous development of display technology, for enriching the user experience and improving the screen occupation ratio of the display panel, the design of the special-shaped display panel with the non-rectangular edge of the display panel is currently provided.
The edge shape of the specially shaped display panel is changed compared to the edge shape of the conventional rectangular display panel, that is, the cutting trace when the specially shaped display panel is cut is different from the cutting trace when the conventional rectangular display panel is formed. Therefore, if various devices in the non-display area of the display panel are still disposed in a conventional manner, if the frame width of the display panel is not increased, the devices disposed corresponding to the irregular edges may be cut, which may cause the display panel to fail to operate normally.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel and a display device, in which devices in a non-display area of the display panel are reasonably arranged, so that on the basis of meeting a narrow frame design requirement of a special-shaped display panel, the devices can be prevented from being cut, and normal operation of the special-shaped display panel is ensured.
In one aspect, an embodiment of the present invention provides a display panel, where an edge of the display panel includes a special-shaped corner and a straight edge connected to the special-shaped corner;
the display panel comprises a display area and a first non-display area; the first non-display area is located between the straight line edge and the display area;
the display area comprises a plurality of first signal lines which are arranged along a first direction and extend along a second direction; the extension line of the first signal line passes through the special-shaped corner;
the first non-display area comprises a plurality of first electrostatic protection units electrically connected with the first signal wires; along the first direction, the distance between two adjacent first electrostatic protection units is smaller than the distance between two adjacent first signal lines.
In another aspect, an embodiment of the present invention provides a display device, including the display panel described above.
According to the display panel and the display device provided by the embodiment of the invention, the first electrostatic protection unit is arranged in the first non-display area far away from the special-shaped corner, so that the first electrostatic protection unit can be prevented from being cut when the special-shaped corner is formed by cutting. In addition, the first static electricity protection unit connected with the first signal line is arranged in the first non-display area, so that the first static electricity protection unit can be prevented from being arranged in the second non-display area corresponding to the special-shaped corner, and the width of the second non-display area corresponding to the special-shaped corner can be reduced.
In addition, when the first electrostatic protection unit is arranged in the first non-display area, the distance between two adjacent first electrostatic protection units along the first direction is compressed, so that the distance between two adjacent first electrostatic protection units along the first direction is smaller than the distance between two adjacent first signal lines, and when the number of the first electrostatic protection units arranged in the first non-display area is constant, the space occupied by the first electrostatic protection units can be reduced by compressing the distance, so that a space for arranging other devices is reserved in the first non-display area.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic top view of a display panel with rectangular edges according to the related art;
FIG. 2 is an enlarged view of region Q' of FIG. 1;
fig. 3 is a schematic top view of a display panel according to an embodiment of the invention;
FIG. 4 is an enlarged view of region Q of FIG. 3;
FIG. 5 is an enlarged view of a lower frame of the display panel shown in FIG. 3;
FIG. 6 is a schematic view of the first electrostatic discharge protection units arranged along a first direction;
FIG. 7 is another enlarged view of the bottom frame of the display panel shown in FIG. 3;
FIG. 8 is a further enlarged view of the bottom frame of the display panel shown in FIG. 3;
FIG. 9 is a schematic diagram of an ESD protection circuit according to an embodiment of the present invention;
FIG. 10 is a layout of the ESD protection circuit shown in FIG. 9;
FIG. 11 is a schematic view of a portion of the first ESD protection unit and the first fan-out trace located at the outermost side of the first non-display area;
FIG. 12 is another schematic view of a portion of the first ESD protection unit and the first fan-out trace located at the outermost side of the first non-display area;
fig. 13 is a schematic diagram of a display device according to an embodiment of the invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, 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 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.
As shown in fig. 1 and fig. 2, fig. 1 is a schematic top view of a display panel with rectangular edges in the related art, and fig. 2 is an enlarged schematic view of a region Q ' in fig. 1, wherein an electrostatic protection unit 1 ' located in a non-display area NA ' is electrically connected to a signal line 2 ' located in a display area AA '. The pitch of the electrostatic protection units 1 'is equal to the pitch of the signal lines 2'.
When a display panel with a non-right angle, such as a rounded corner or an obtuse angle, is formed, taking the display panel with a non-right angle as an example, as shown in fig. 2, a cutting line 3 ' shown by a dotted line will pass through the electrostatic protection unit 1 ' near the edge, so that the electrostatic protection unit 1 ' may be cut off, and the display panel may not work normally.
In view of the above, an embodiment of the present invention provides a display panel, as shown in fig. 3 and fig. 4, fig. 3 is a schematic top view of the display panel provided by the embodiment of the present invention, fig. 4 is an enlarged schematic view of a region Q in fig. 3, and an edge of the display panel includes a special-shaped corner 1 and a straight edge 2 connected to the special-shaped corner 1.
The display panel includes a display area AA and a non-display area NA. The non-display area NA includes a first non-display area NA1 between the straight edge 2 and the display area AA, and a second non-display area NA2 between the shaped corner 1 and the display area AA.
The display area AA includes a plurality of signal lines (not shown in fig. 3) arranged in the first direction h1 and extending in the second direction h 2. Specifically, the signal lines include a first signal line 31 and a second signal line 32. An extension of the first signal line 31 passes through the shaped corner 1. The extension line of the second signal line 32 passes through the straight edge 2. Illustratively, the signal line may be a data line transmitting a data voltage.
The first non-display area NA1 includes a plurality of electrostatic discharge protection units. Specifically, the electrostatic protection unit includes a first electrostatic protection unit 41 electrically connected to the first signal line 31, and the first electrostatic protection unit 41 is configured to prevent the first signal line 31 from being damaged by static electricity. As shown in fig. 4, in the embodiment of the present invention, along the first direction h1, the first electrostatic protection unit 41 is located on the side of the second electrostatic protection unit 42 close to the shaped corner 1. And, along the first direction h1, the distance between two adjacent first electrostatic protection units 41 is smaller than the distance between two adjacent first signal lines 31.
According to the display panel provided by the embodiment of the invention, the first electrostatic protection unit 41 is arranged in the first non-display area NA1 far away from the special-shaped corner 1, so that when the special-shaped corner 1 is cut and formed, the first electrostatic protection unit 41 can be prevented from being cut. Furthermore, the embodiment of the present invention disposes the first electrostatic protection unit 41 connected to the first signal line 31 in the first non-display area NA1, and can avoid disposing the first electrostatic protection unit 41 in the second non-display area NA2 corresponding to the irregularly-shaped corner 1, thereby being capable of reducing the width of the second non-display area NA2 corresponding to the irregularly-shaped corner 1.
Besides, when the first electrostatic protection units 41 are disposed in the first non-display area NA1, the embodiment of the invention can reduce the space occupied by the first electrostatic protection units 41 by compressing the distance between two adjacent first electrostatic protection units 41 along the first direction h1 and along the first direction h1 to be smaller than the distance between two adjacent first signal lines 31, so as to leave a space for disposing other devices in the first non-display area NA1 when the number of the first electrostatic protection units 41 disposed in the first non-display area NA1 is constant.
As shown in fig. 3, the first non-display area NA1 further includes a pad area 6, the pad area 6 including a plurality of pads; the driving chip is connected with the bonding pad in a binding mode. The non-display area NA of the display panel further includes a plurality of fan-out leads. Specifically, as shown in fig. 4 and 5, fig. 5 is an enlarged schematic view of a lower frame of the display panel shown in fig. 3, and the fan-out lead includes a first fan-out lead 51 connecting the first signal line 31 and the pad in the pad region 6. The first electrostatic protection unit 41 is located between the first signal line (not shown in fig. 5) and the pad region 6. The first electrostatic protection unit 41 is electrically connected to the first signal line 31 through the first fan-out lead 51.
Illustratively, on the basis of compressing the pitch of the first electrostatic protection units 41, as shown in fig. 4, the embodiment of the invention further arranges the first electrostatic protection units 41 along a third direction h3 intersecting both the first direction h1 and the second direction h 2. Comparing fig. 6, fig. 6 is a schematic diagram of arranging the first electrostatic protection units 41 along the first direction h1, and it can be seen that, in the arrangement manner of fig. 4, the slopes of different first fan-out traces 51 tend to be consistent, and the distance between adjacent first fan-out traces 51 at different positions is smaller. The arrangement can reduce the process difficulty of preparing the first fan-out routing 51 on the basis of ensuring good insulation of the first fan-out routing 51.
As shown in fig. 4, a distance between the first electrostatic protection unit 41 and the display area AA in the second direction h2 gradually decreases in a direction parallel to the first direction h1 and directed from an edge of the display panel to a center of the display panel. That is, taking the orientation shown in fig. 4 as an example, the first electrostatic protection unit 41 is arranged to be gradually inclined upward in the left-to-right direction. With such an arrangement, on the basis of reducing the process difficulty of the first fan-out trace 51, the total length of the plurality of first esd protection units 41 in the second direction h2 can be avoided from being too large. The total length of the plurality of first electrostatic protection units 41 in the second direction h2 is a distance between an upper edge of the first electrostatic protection unit 41 closest to the display area AA and a lower edge of the first electrostatic protection unit 41 farthest from the display area AA in the second direction h 2. The embodiment of the invention can reduce the length of the first non-display area NA1 in the second direction h2, which is beneficial to the narrow frame design of the display panel.
Optionally, in the embodiment of the present invention, an acute included angle θ 1 between the third direction h3 and the first direction h1 satisfies: 0< θ 1 ≦ 5 ° to avoid excessively tilting the plurality of first electrostatic protection units while reducing the length of the first non-display area NA1 in the first direction h1, thereby avoiding excessively large length of the first non-display area NA1 in the second direction h 2.
As shown in fig. 7, fig. 7 is another enlarged schematic view of the lower frame of the display panel shown in fig. 3, wherein the display panel further includes a plurality of second electrostatic protection units 42, the plurality of second electrostatic protection units 42 are electrically connected to the first signal lines 31, or the plurality of second electrostatic protection units 42 are electrically connected to the second signal lines 32, or a part of the plurality of second electrostatic protection units 42 is electrically connected to the first signal lines 31 and a part of the plurality of second electrostatic protection units 42 is electrically connected to the second signal lines 32. As shown in fig. 7, the second electrostatic protection unit 42 is arranged in a different direction from the first electrostatic protection unit 41. The second electrostatic protection units 42 are arranged along a fourth direction h4, and the fourth direction h4 intersects with the third direction h 3. In a direction parallel to the first direction h1 and pointing from the edge of the display panel to the center of the display panel, an inflection point is formed in an area where the last first electrostatic protection cell 41 arranged in the third direction and the first second electrostatic protection cell 42 arranged in the fourth direction are located.
In the embodiment of the present invention, by providing the first electrostatic protection unit 41 and the second electrostatic protection unit 42 in different arrangement directions in the electrostatic protection units, it is possible to avoid that an excessive number of electrostatic protection units are arranged to be inclined in the third direction h3, and thus it is possible to avoid that the length of the first non-display area NA1 in the second direction h2 is too large.
Alternatively, the number a of the first electrostatic protection units 41 arranged in the third direction h3 and the number B of the second electrostatic protection units 42 arranged in the fourth direction h4 satisfy: 9 a/B16, i.e. the proportion of the first electrostatic protection units 41 arranged along the third direction h3 to the total electrostatic protection units is between 90% and 94%, and the proportion of the second electrostatic protection units 42 arranged along the fourth direction h4 to the total electrostatic protection units is between 6% and 10%, so that the size of the first non-display area NA1 in the first direction h1 and the second direction h2 is not excessive.
Illustratively, as shown in fig. 7, the embodiment of the present invention may make the fourth direction h4 parallel to the first direction h 1. Also, in the first direction h1, a distance between two adjacent second electrostatic protection units 42 arranged in the fourth direction h4 may be made larger than a distance between two adjacent first electrostatic protection units 41 arranged in the third direction h 3. For example, the distance between two adjacent second electrostatic protection units 42 arranged along the fourth direction h4 may be equal to the distance between two adjacent first signal lines 31 and/or two adjacent second signal lines 32. The embodiment of the present invention, with such an arrangement, can extend the connection line connecting the second signal line 32 and the second esd protection unit 42 along the second direction h2, thereby reducing the difficulty of the manufacturing process of the connection line.
Alternatively, in the embodiment of the present invention, the fourth direction h4 may not be parallel to the first direction h 1. As shown in fig. 8, fig. 8 is a further enlarged schematic view of the lower frame of the display panel shown in fig. 3, wherein the distance between the second electrostatic protection unit 42 and the display area AA along the second direction h2 gradually increases along a direction parallel to the first direction h1 and pointing from the edge of the display panel to the center of the display panel. With this arrangement, a portion of the first electrostatic protection unit 41 and a portion of the second electrostatic protection unit 42 can be located at the same horizontal position with the same distance from the display area AA, and the length of the first non-display area NA1 in the second direction h2 can be prevented from being increased while the area where the electrostatic protection units are located, that is, the length of the first non-display area NA1 in the first direction h1, is reduced.
Optionally, the acute included angle θ 2 between the fourth direction h4 and the first direction h1 satisfies: 0< theta 2 ≦ 5 deg. to avoid excessively tilting the arrangement of the second electrostatic protection units 42, and further ensure that the length of the first non-display area NA1 in the second direction h3 is not increased.
Illustratively, as shown in fig. 7 and 8, the first non-display area NA1 further includes a plurality of third electrostatic discharge protection units 43 and a plurality of fourth electrostatic discharge protection units 44. Wherein the third electrostatic protection unit 43 and the first electrostatic protection unit 41 are symmetrical with respect to a line 01 passing through the center of the display panel and perpendicular to the straight edge. The fourth electrostatic discharge protection unit 44 and the second electrostatic discharge protection unit 42 are symmetrical with respect to a line 01 passing through the center of the display panel and perpendicular to the straight edge. At present, the pad area is usually disposed at the middle position of the first non-display area NA, and correspondingly, for the signal line located at the left side of the line 01 and the signal line located at the right side of the line 01 in the display area AA, the fan-out trace connecting the two signal lines and the pad in the non-display area is also symmetrical with respect to the line 01. Therefore, in the embodiment of the invention, the electrostatic protection units are arranged symmetrically about the line 01, so that the electrostatic protection units can be arranged close to the corresponding fan-out wires, an overlong connecting line is prevented from being arranged between the fan-out wires and the electrostatic protection units, the complexity of the wires in the non-display area is favorably reduced, and the width of the non-display area is reduced.
Exemplarily, as shown in fig. 9, fig. 10 and fig. 11, fig. 9 is a schematic diagram of an esd protection circuit according to an embodiment of the present invention, fig. 10 is a layout of the esd protection circuit shown in fig. 9, and fig. 11 is a schematic diagram of a portion of a first esd protection unit located at an outermost side of a first non-display area and a first fan-out trace, in an embodiment of the present invention, a first esd protection unit 41 and a second esd protection unit 42 include at least one esd protection circuit 40 shown in fig. 9. The first non-display area NA1 further includes an electrostatic discharge trace 7.
The electrostatic protection circuit 40 comprises a first transistor T1 and a second transistor T2, wherein a source T11 of the first transistor T1 is electrically connected with a drain T22 of the second transistor, and a drain T12 of the first transistor T1 is electrically connected with a source T21 of the second transistor; in the first electrostatic protection unit 41, the gate T10 and the source T11 of the first transistor T1 are electrically connected to the first signal line 31. In the second electrostatic protection unit 42, the gate T10 and the source T11 of the first transistor T1 are electrically connected to the second signal line 32. The gate T20 and the source T21 of the second transistor T2 are electrically connected to the electrostatic discharge trace 7.
When the static electricity accumulated on the first signal line 31 or the second signal line 32 is excessive, the first transistor T1 is turned on, and the static electricity on the first signal line 31 is conducted to the static electricity discharge trace 7 through the first transistor T1, so that the static electricity on the first signal line 31 is discharged. When the static electricity accumulated on the static electricity discharging wire 7 is too much, the second transistor T2 is turned on, and the static electricity on the static electricity discharging wire 7 is conducted to the first signal line 31 or the second signal line 32 through the second transistor T2, so that the static electricity on the static electricity discharging wire 7 is discharged.
As shown in fig. 10, when the electrostatic protection circuit 40 is disposed in the first non-display area NA1 of the display panel, the embodiment of the invention arranges the first transistor T1 and the second transistor T2 along the second direction h2 to reduce the size of the area occupied by the electrostatic protection circuit 40 in the first direction h1, and further reduce the size of the area occupied by the first electrostatic protection unit 41 and the second electrostatic protection unit 42 including the electrostatic protection circuit 40 in the first direction h1, so that a greater number of the first electrostatic protection unit 41 and the second electrostatic protection unit 42 can be disposed in the first non-display area NA1 located away from the shaped corner 1. For example, all the electrostatic protection units may be disposed in the first non-display area NA 1. As shown in fig. 11, the first signal line 31 located at the outermost side of the display area and the first electrostatic discharge protection unit 41 located at the outermost side of the non-display area may have a distance d therebetween, that is, the first electrostatic discharge protection unit 41 located at the outermost side of the non-display area may be retracted inward of the non-display area by the distance d with respect to the structure shown in fig. 2. The smaller the size of the first electrostatic protection unit 41 along the first direction h1 and the smaller the spacing between two adjacent first electrostatic protection units 41 along the first direction h1, the larger the distance d may be. In the design process of the display panel, the size and the spacing of the first electrostatic protection units can be designed according to the resolution of the display panel and the specific shape of the irregular corners.
As shown in fig. 11, in the embodiment of the present invention, the electrostatic discharge trace 7 may also be arranged to extend along a third direction, so as to reduce the distance between the electrostatic discharge trace 7 and the first electrostatic protection unit 41 at different positions, thereby reducing the length of the connection line between the electrostatic discharge trace 7 and the first electrostatic protection unit 41, and further reducing the complexity of the trace in the non-display area.
As shown in fig. 11, in the embodiment of the present invention, the first fan-out lead 51 may be provided to include a first sub-lead 511, a second sub-lead 512, a third sub-lead 513, and a fourth sub-lead 514 connected to each other. The second sub-lead 512 is disposed corresponding to the first esd protection unit 41 and electrically connected to the first esd protection unit 41. The first electrostatic protection unit 41 is located between two adjacent second sub-leads 512. The fourth sub-leads 514 are disposed corresponding to the pad regions and connected to the pads 60 in the pad regions in a one-to-one correspondence. In the embodiment of the present invention, the second sub-lead 512 and the fourth sub-lead 514 may be disposed to extend along the second direction h2, that is, the extending direction of the second sub-lead 512 is the same as the arrangement direction of the transistors in the first electrostatic protection unit 40, such an arrangement may reduce the length of the connection line connecting the first fan-out lead 51 and the first electrostatic protection unit 40, which is beneficial to further reduce the complexity of the routing in the non-display area. Also, the connection reliability between the first fan-out lead 51 and the pad 60 can be improved.
On this basis, in the embodiment of the present invention, the first sub-lead 511 connecting the first signal line 31 and the second sub-lead 512, and the third sub-lead 513 connecting the second sub-lead and the fourth sub-lead 514 are both set as oblique lines, so that the included angle between the first sub-lead 511 and the second sub-lead 512, the included angle between the second sub-lead 512 and the third sub-lead 513, and the included angle between the third sub-lead 513 and the fourth sub-lead 514 are all obtuse angles, so as to realize the electrical connection between the first electrostatic protection unit 41 and the first signal line 31 on the basis of the inward shrinkage of the first electrostatic protection unit 41.
Moreover, the number a of the first electrostatic protection units 41 arranged in the third direction h3 and the number B of the second electrostatic protection units 42 arranged in the fourth direction h4 may be designed according to the shape of the first fan-out lead. Specifically, as shown in fig. 5, when designing the display panel, a connection line (indicated by a chain line in fig. 5) of intersections of the plurality of third sub-wirings 513 and the fourth sub-wirings 514 may pass through an inflection point between the first electrostatic protection cells 41 arranged in the third direction h3 and the second electrostatic protection cells 42 arranged in the fourth direction h 4. The inflection point between the first electrostatic protection cells 41 arranged along the third direction h3 and the second electrostatic protection cells 42 arranged along the fourth direction h4 is the area where the last first electrostatic protection cell 41 arranged along the third direction h3 and the first second electrostatic protection cell 43 arranged along the fourth direction h4 are located along the direction parallel to the first direction h1 and pointing from the edge of the display panel to the center of the display panel. The point O shown in fig. 5 is an inflection point between the first electrostatic protection cell 41 arranged in the third direction h3 and the second electrostatic protection cell 42 arranged in the fourth direction h4 based on the current setting.
The embodiment of the present invention, with this arrangement, can make the process of designing the number a of the first electrostatic protection units 41 arranged in the third direction h3 and the number B of the second electrostatic protection units 42 arranged in the fourth direction h4 simpler. For example, taking the point O as an example of the design of the first non-display area NA1 where A and B are designed to be 9 ≦ A/B ≦ 16, which can achieve the target size requirement, if the number of second electrostatic protection cells 42 arranged in the fourth direction h4 is excessive, the inflection point between the first electrostatic protection cell 41 arranged in the third direction h3 and the second electrostatic protection cell 42 arranged in the fourth direction h4 will move from the point O to the side of the position a in FIG. 5. If the number of the second electrostatic protection cells 42 arranged in the fourth direction h4 is too small, the inflection point between the first electrostatic protection cell 41 arranged in the third direction h3 and the second electrostatic protection cell 42 arranged in the fourth direction h4 will move from the point O to the position b side in the figure.
As shown in fig. 11, in the embodiment of the present invention, the connection lines of the intersections of the plurality of first sub-leads 511 and the plurality of second sub-leads 512 and the connection lines of the intersections of the plurality of second sub-leads 512 and the plurality of third sub-leads 513 may be all parallel to the third direction h3, so that the arrangement of the first fan-out leads 51 located at different positions is more regular, and on the basis of ensuring good insulation between different first fan-out leads, the difficulty of the manufacturing process of the first fan-out leads may be reduced.
For example, as shown in fig. 12, fig. 12 is another schematic diagram of a portion of the first esd protection unit and the first fan-out trace located at the outermost side of the first non-display area, where the first esd protection unit 41 includes two esd protection circuits 40, and the two esd protection circuits 40 are arranged along the second direction h 2; the two electrostatic protection circuits 40 are electrically connected to the two first signal lines 31 in a one-to-one correspondence. This arrangement enables further reduction in the size of the area occupied by the first electrostatic protection unit 41 in the first direction h 1. As can be seen from comparison between fig. 11 and fig. 12, when the esd protection circuit connected to eight first signal lines 31 is provided, if each first esd protection unit 41 in fig. 11 includes only one esd protection circuit 40, eight first esd protection units 41 are provided, and the size of the area occupied by the eight first esd protection units 41 in the first direction h1 is L1, whereas with the arrangement of fig. 12, the size is reduced to L2 without changing the design of the esd protection circuit 40.
As shown in fig. 12, the orthographic projection of the esd trace 7 on the plane of the display panel is located between the orthographic projections of the two esd protection circuits 40 on the plane of the display panel, so as to reduce the distance from the esd trace 7 to any one of the esd protection circuits 40, thereby reducing the trace length between the esd trace 7 and the esd protection circuit 40.
An embodiment of the present invention further provides a display device, as shown in fig. 13, fig. 13 is a schematic view of the display device provided in the embodiment of the present invention, and the display device includes the display panel. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 13 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
According to the display device provided by the embodiment of the invention, the first electrostatic protection unit is arranged in the first non-display area far away from the special-shaped corner, so that the first electrostatic protection unit can be prevented from being cut when the special-shaped corner is cut. In addition, the first static electricity protection unit connected with the first signal line is arranged in the first non-display area, so that the first static electricity protection unit can be prevented from being arranged in the second non-display area corresponding to the special-shaped corner, and the width of the second non-display area corresponding to the special-shaped corner can be reduced.
In addition, when the first electrostatic protection unit is arranged in the first non-display area, the distance between two adjacent first electrostatic protection units along the first direction is compressed, so that the distance between two adjacent first electrostatic protection units along the first direction is smaller than the distance between two adjacent first signal lines, and when the number of the first electrostatic protection units arranged in the first non-display area is constant, the space occupied by the first electrostatic protection units can be reduced by compressing the distance, so that a space for arranging other devices is reserved in the first non-display area.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (16)
1. A display panel, wherein an edge of the display panel comprises a shaped corner, and a straight edge connecting the shaped corner;
the display panel comprises a display area and a first non-display area; the first non-display area is located between the straight line edge and the display area;
the display area comprises a plurality of first signal lines which are arranged along a first direction and extend along a second direction; the extension line of the first signal line passes through the special-shaped corner;
the first non-display area comprises a plurality of first electrostatic protection units electrically connected with the first signal wires; along the first direction, the distance between two adjacent first electrostatic protection units is smaller than the distance between two adjacent first signal lines;
the first electrostatic protection units are arranged along a third direction, and the third direction is intersected with the first direction and the second direction;
the distance between the first electrostatic protection unit and the display area along the second direction is gradually reduced along a direction parallel to the first direction and pointing to the center of the display panel from the edge of the display panel.
2. The display panel according to claim 1,
an acute included angle θ 1 between the third direction and the first direction satisfies: 0< theta 1 < 5 deg.
3. The display panel according to claim 1,
the display area also comprises a plurality of second signal lines which are arranged along the first direction and extend along the second direction; the extension line of the second signal line passes through the straight line edge;
the first non-display area further comprises a plurality of second electrostatic protection units; the second electrostatic protection units are electrically connected with the first signal lines and/or the second signal lines; the plurality of second electrostatic protection units are arranged along a fourth direction, and the fourth direction is intersected with the third direction.
4. The display panel according to claim 3,
the number A of the first electrostatic protection units and the number B of the second electrostatic protection units satisfy that: A/B is more than or equal to 9 and less than or equal to 16.
5. The display panel according to claim 3,
the fourth direction is parallel to the first direction; along the first direction, the distance between two adjacent second electrostatic protection units is equal to the distance between two adjacent first signal lines.
6. The display panel according to claim 3,
and along a direction which is parallel to the first direction and points to the center of the display panel from the edge of the display panel, the distance between the second electrostatic protection unit and the display area along the second direction is gradually increased.
7. The display panel according to claim 6,
an acute included angle θ 2 between the fourth direction and the first direction satisfies: 0< theta 2 < DEG.ltoreq.5.
8. The display panel according to claim 3,
the first non-display area further comprises a plurality of third electrostatic protection units and a plurality of fourth electrostatic protection units;
the third electrostatic protection unit and the first electrostatic protection unit are symmetrical about a line passing through the center of the display panel and perpendicular to the straight edge;
the fourth electrostatic protection unit and the second electrostatic protection unit are symmetrical with respect to a line passing through a center of the display panel and perpendicular to the straight edge.
9. The display panel according to claim 3,
the first non-display area further comprises an electrostatic discharge routing;
the first electrostatic protection unit comprises at least one electrostatic protection circuit;
the electrostatic protection circuit comprises a first transistor and a second transistor, wherein the source electrode of the first transistor is electrically connected with the drain electrode of the second transistor, and the drain electrode of the first transistor is electrically connected with the source electrode of the second transistor; the grid electrode and the source electrode of the first transistor are electrically connected with the first signal wire, and the grid electrode and the source electrode of the second transistor are electrically connected with the electrostatic discharge wire.
10. The display panel according to claim 9,
the first transistor and the second transistor are arranged in the second direction.
11. The display panel according to claim 9,
the first non-display area further comprises a plurality of first fan-out leads and a plurality of bonding pads; the first signal wires are connected with the bonding pads in a one-to-one correspondence mode through the first fan-out lead wires; the first electrostatic protection unit is electrically connected with the first signal wire through the first fan-out lead;
the first fan-out lead comprises a first sub-lead, a second sub-lead, a third sub-lead and a fourth sub-lead which are connected with one another, and an included angle between the first sub-lead and the second sub-lead, an included angle between the second sub-lead and the third sub-lead and an included angle between the third sub-lead and the fourth sub-lead are obtuse angles;
the first sub-lead is connected with the first signal line;
the second sub-lead and the fourth sub-lead extend in the second direction;
the second sub-leads are connected with the first electrostatic protection unit, and the first electrostatic protection unit is positioned between two adjacent second sub-leads;
the fourth sub-lead is connected to the pad.
12. The display panel according to claim 11,
a line of intersections of the plurality of first sub-leads and the second sub-leads, and a line of intersections of the plurality of second sub-leads and the third sub-leads are parallel to the third direction.
13. The display panel according to claim 11,
the first electrostatic protection unit comprises two electrostatic protection circuits which are arranged along the second direction; and the two electrostatic protection circuits are electrically connected with the two first signal wires in a one-to-one correspondence manner.
14. The display panel according to claim 13,
the orthographic projection of the electrostatic discharge wires on the plane of the display panel is positioned between the orthographic projections of the two electrostatic protection circuits on the plane of the display panel.
15. The display panel according to claim 11,
a line connecting intersections of the plurality of third sub-leads and the fourth sub-leads passes through an inflection point between the first electrostatic protection cells arranged in the third direction and the second electrostatic protection cells arranged in the fourth direction; the inflection point is a direction parallel to the first direction and pointing to the center of the display panel from the edge of the display panel, and the area where the last first electrostatic protection unit and the first second electrostatic protection unit are arranged along the third direction and the fourth direction are located.
16. A display device characterized by comprising the display panel according to any one of claims 1 to 15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010623320.8A CN111681554B (en) | 2020-06-30 | 2020-06-30 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010623320.8A CN111681554B (en) | 2020-06-30 | 2020-06-30 | Display panel and display device |
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| CN111681554A CN111681554A (en) | 2020-09-18 |
| CN111681554B true CN111681554B (en) | 2022-03-25 |
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| CN114550670A (en) * | 2022-03-02 | 2022-05-27 | 广州华星光电半导体显示技术有限公司 | Display panel |
| CN114842778A (en) * | 2022-05-20 | 2022-08-02 | 昆山国显光电有限公司 | Test circuit, display panel and display device |
| CN114937420B (en) * | 2022-05-27 | 2024-02-09 | 武汉天马微电子有限公司 | Display panel and display device |
| EP4421870A1 (en) * | 2022-06-29 | 2024-08-28 | BOE Technology Group Co., Ltd. | Display substrate and display apparatus |
| CN115294889B (en) * | 2022-08-30 | 2023-11-21 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
| CN118285169A (en) * | 2022-11-01 | 2024-07-02 | 京东方科技集团股份有限公司 | Display panel and display device |
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| WO2012070558A1 (en) * | 2010-11-26 | 2012-05-31 | シャープ株式会社 | Wiring board, and wiring board for display device |
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