Display panel and display device

Abstract

An embodiment of the present invention provides a display panel, comprising: a plurality of sub-areas arranged along a first direction, each sub-area comprising a sub-display area and a sub-non-display area; each sub-display area comprises a scan line extending along the first direction and arranged in the second direction and a data line extending along the second direction and arranged in the first direction; the first direction intersects with the second direction; each sub-non-display area comprises a data fan-out line connected to a data line in a corresponding sub-display area and a binding terminal connected to the data fan-out line; the sub-area comprises a first sub-area and a second sub-area arranged adjacently; the first sub-area comprises a first transition area adjacent to the second sub-area; the second sub-area comprises a second transition area adjacent to the first transition area; the data fan-out line of the first transition area is symmetrically arranged with the data fan-out line of the second transition area. The load symmetry of the first transition area and the second transition area is achieved, thereby avoiding uneven display and visual split screen caused by sudden changes in the load of the data lines of the first sub-area and the second sub-area.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In medium and large-sized OLED display panels, due to the large number of data lines and the large distance between the data lines, if the entire display panel adopts a COF (chip on film) design, the data fan-out line of the first data line and the data fan-out line of the middle data line will differ greatly in length, and the load difference will be large, resulting in uneven display. Therefore, multiple COF designs are usually used in medium and large-sized OLED display panels. However, medium and large-sized display panels themselves have serious IR drop (voltage drop), and are limited by the space limitations of the layout. There will be load mutations between adjacent COF-driven areas, resulting in uneven display or visual split-screen phenomena. Summary of the invention

[0003] In one aspect, an embodiment of the present invention provides a display panel, comprising: a plurality of sub-regions arranged along a first direction, each of the sub-regions comprising a sub-display area and a sub-non-display area;

[0004] Each of the sub-display areas includes scan lines extending along the first direction and arranged in the second direction and data lines extending along the second direction and arranged in the first direction; the first direction intersects the second direction;

[0005] Each of the sub non-display areas comprises a data fan-out line connected to a data line in a corresponding sub-display area and a binding terminal connected to the data fan-out line;

[0006] The sub-region includes a first sub-region and a second sub-region that are adjacent to each other; the first sub-region includes a first transition region that is adjacent to the second sub-region; the second sub-region includes a second transition region that is adjacent to the first transition region; and the data fan-out line of the first transition region is symmetrically arranged with the data fan-out line of the second transition region.

[0007] On the other hand, an embodiment of the present invention provides a display device including the above-mentioned display panel.

[0008] By setting the first transition area adjacent to the second sub-area in the first sub-area, setting the second transition area adjacent to the first transition area in the second sub-area, and symmetrically setting the data fan-out line of the first transition area and the data fan-out line of the second transition area, it is achieved that the load of the first transition area and the load of the second transition area are symmetrically set, thereby avoiding uneven display and visual split screen caused by different data line loads in the first sub-area and the second sub-area. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0010] Figure 1 A schematic diagram of a display panel provided by an embodiment of the present invention;

[0011] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle C1 region;

[0012] Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle C2 region;

[0013] Figure 4 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0014] Figure 5 for Figure 4 A partial enlarged schematic diagram of the C3 and C4 regions;

[0015] Figure 6 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0016] Figure 7 for Figure 6 A partial enlarged schematic diagram of the middle C5 region;

[0017] Figure 8 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0018] Fig. 9 for Figure 8 A partial enlarged schematic diagram of the C6 and C7 regions;

[0019] Fig.10 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0020] Fig.11 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0021] Fig. 12A A schematic diagram of another display panel provided by an embodiment of the present invention;

[0022] Fig. 12B for Fig. 12A Schematic diagram of the cross section of EE';

[0023] Fig.13AA schematic diagram of another display panel provided by an embodiment of the present invention;

[0024] Fig. 13B for Fig.13A Schematic cross-sectional view of FF';

[0025] Fig.14A A schematic diagram of another display panel provided by an embodiment of the present invention;

[0026] Fig. 14B for Fig.14A Schematic cross-sectional view of FF';

[0027] Fig.15 A schematic diagram of another display panel provided according to an embodiment of the present invention;

[0028] Fig.16 for Fig.15 A partial enlarged schematic diagram of the middle C8 region;

[0029] Fig.17 A schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0032] As described in the background art, medium and large-sized display panels have a relatively serious IR drop, and uneven load will lead to serious display unevenness. Therefore, the present application provides a display panel and a display device to solve the above-mentioned technical problems.

[0033] Please refer to Figure 1 to Figure 3 , Figure 1 A schematic diagram of a display panel provided by an embodiment of the present invention;

[0034] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle C1 region; Figure 3 for Figure 1A partial enlarged schematic diagram of the middle C2 region;

[0035] The present application provides a display panel, including: a plurality of sub-areas SA arranged along a first direction, each sub-area SA including a sub-display area SAA and a sub-non-display area SNA; each sub-display area SAA includes a scan line 20 extending along the first direction and arranged in the second direction, and a data line 10 extending along the second direction and arranged in the first direction; the first direction intersects with the second direction; the first direction here refers to the extension direction of the scan line, and the second direction refers to the extension direction of the data line. Here, the first direction is perpendicular to the second direction as an example, but the present application is not limited to this.

[0036] Each sub-non-display area SNA includes a data fan-out line 11 and a binding terminal 30 connected to the data line 10 in the corresponding sub-display area SA; at least part of the binding terminal 30 is electrically connected to the data fan-out line 11. In the existing design, since each sub-non-display area SNA will be provided with numerous devices, such as ESD (electrostatic protection) devices, VT (visual test) terminals, signal lines of the shift register circuit, shorting bars (shorting bars) and other devices, the setting position of the binding terminal layout in the edge sub-display area needs to be adjusted accordingly according to the position of the above-mentioned devices. In medium and large-sized display panels, due to the large size of the panel, the voltage drop (IR drop) is serious, and due to the irregular setting of the position of the binding terminal, the load difference of the data fan-out line is large, which aggravates the problem of uneven display.

[0037] In the present application, the sub-region SA includes a first sub-region SA1 and a second sub-region SA2 that are adjacent to each other; the first sub-region SA1 includes a first transition region STA1 that is adjacent to the second sub-region SA2; the second sub-region SA2 includes a second transition region STA2 that is adjacent to the first transition region STA1; the data fan-out line 11 of the first transition region STA1 and the data fan-out line 11 of the second transition region STA2 are symmetrically arranged.

[0038] The present application sets the first transition area STA1 adjacent to the second sub-area SA2 in the first sub-area SA1, sets the second transition area STA2 adjacent to the first transition area STA1 in the second sub-area SA2, and symmetrically sets the data fan-out line 11 of the first transition area STA1 and the data fan-out line 11 of the second transition area STA2, thereby achieving symmetrical setting of the load of the first transition area STA1 and the load of the second transition area STA2, avoiding the uneven display and visual split screen phenomenon caused by the different loads of the data line 10 in the first sub-area SA1 and the second sub-area SA2.

[0039] Specifically, the display panel of the embodiment includes a plurality of sub-areas SA1, SA2, SA3 and SA4 arranged along a first direction, each sub-area including a sub-display area SAA and a sub-non-display area SNA; in this embodiment, the sub-area SA includes a first sub-area and a second sub-area arranged adjacent to each other; the first sub-area and the second sub-area are SA1 and SA2, or SA2 and SA3, or SA3 and SA4; as long as they are adjacent sub-areas, they can be referred to as the first sub-area and the second sub-area, and the sub-areas are referred to as the second sub-area. Figure 2 Take the first sub-area as SA1 and the second sub-area as SA2 as an example; Figure 3 For example, the first sub-area is SA2 and the second sub-area is SA3. Figure 2 For example, the first sub-region SA1 includes a first transition region STA1 adjacent to the second sub-region SA2; the second sub-region SA2 includes a second transition region STA2 adjacent to the first transition region STA1; the data fan-out line 11 of the first transition region STA1 and the data fan-out line 11 of the second transition region STA2 are symmetrically arranged. The symmetrical arrangement here means that the resistance values ​​of the data fan-out lines of the first transition region and the second transition region at the symmetrical position are similar or equal. Similar here means that the difference in resistance value is not greater than 10%. Preferably, the width and thickness of the data fan-out lines are the same here, and the resistance value is determined by the length. The aforementioned symmetrical position refers to the boundary line of the first sub-region and the second sub-region as the center line, and the data fan-out lines corresponding to the data lines with the same ordinal number on both sides are the fan-out lines at the symmetrical position.

[0040] For details, please continue to refer to Figure 2, in the first transition area STA1, along the direction pointing to the boundary line of the first sub-area SA1 and the second sub-area SA2, the length of the data fan-out line gradually decreases; the first transition area STA1 includes a first data line 10a, and in the second transition area STA2, along the direction pointing to the boundary line of the first sub-area SA1 and the second sub-area SA2, the length of the data fan-out line gradually decreases; the second transition area STA2 includes a second data line 10b; the distance between the first data line 10a and the boundary line is equal to the distance between the second data line 10b and the boundary line; that is, the first data line 10a and the second data line 10b are axially symmetrical about the boundary line A1 between the first sub-area and the second sub-area. In this embodiment, in the first transition area STA1, along the direction pointing to the boundary line between the first sub-area SA1 and the second sub-area SA2, the length of the data fan-out line gradually decreases, so that the load of the data fan-out line gradually decreases; in the second transition area STA2, along the direction pointing to the boundary line between the first sub-area SA1 and the second sub-area SA2, the length of the data fan-out line gradually decreases, so that the load of the data fan-out line gradually increases; and the length of the data fan-out line corresponding to the first data line 10a is equal to the length of the data fan-out line corresponding to the second data line 10b. The resistance of the symmetrically arranged first data line 10a and the second data line 10b is equal, and at the boundary line A1, the loads on both sides are the same, so that the load gradually decreases and then gradually increases, so that the load from the first transition area STA1 and the load of the second transition area STA2 are symmetrically arranged, avoiding the uneven display and visual split screen phenomenon caused by the sudden change of the load of the data line 10 in the first sub-area SA1 and the second sub-area SA2.

[0041] Please continue to refer to Figure 3 , Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle C2 region; Figure 3Taking the first sub-area SA2 and the second sub-area SA3 as an example, in the first transition area STA3, along the direction pointing to the boundary line between the first sub-area SA2 and the second sub-area SA3, the length of the data fan-out line gradually decreases; the first transition area STA3 includes the first data line 10c, and in the second transition area STA4, along the direction pointing to the boundary line between the first sub-area SA2 and the second sub-area SA3, the length of the data fan-out line gradually decreases; the second transition area STA4 includes the second data line 10d; the distance between the first data line 10c and the boundary line is equal to the distance between the second data line 10d and the boundary line; that is, the first data line 10c and the second data line 10d are axially symmetrical about the boundary line A2 between the first sub-area and the second sub-area. In this embodiment, in the first transition area STA3, along the direction pointing to the boundary line between the first sub-area SA2 and the second sub-area SA3, the length of the data fan-out line gradually increases, so that the load of the data fan-out line gradually increases; in the second transition area STA4, along the direction pointing to the boundary line between the first sub-area SA2 and the second sub-area SA3, the length of the data fan-out line gradually increases, so that the load of the data fan-out line gradually increases again; and the length of the data fan-out line corresponding to the first data line 10c is equal to the length of the data fan-out line corresponding to the second data line 10d. The resistance of the symmetrically arranged first data line 10c and the second data line 10d is equal, and at the boundary line A2, the loads on both sides are the same, so that the load gradually increases and then gradually decreases, so that the load from the first transition area STA3 and the load of the second transition area STA4 are symmetrically arranged, avoiding the uneven display and visual split screen phenomenon caused by the sudden change of the load of the data line 10 in the first sub-area SA2 and the second sub-area SA3.

[0042] Please continue to refer to Figure 1 to Figure 3, the first sub-area SA1 includes the first data fan-out line 11a and the first binding area 30; the second sub-area SA2 includes the second data fan-out line 11b and the second binding area 30; the first data fan-out line 11a, the first binding area 30, the second data fan-out line 11b and the second binding area 30 are located on the same side of the sub-display area; the data fan-out line 11 of the first transition area STA1 / STA3 and the data fan-out line 11 of the second transition area STA2 / STA4 are axially symmetrical about the boundary line between the first transition area and the second transition area. That is, the data fan-out line 11 of the first transition area STA1 / STA3 and the data fan-out line 11 of the second transition area STA2 / STA4 have the same length, width and thickness, and are geometrically axially symmetrical. In this embodiment, the first data fan-out line 11a, the first binding area 30, the second data fan-out line 11b and the second binding area 30 are concentrated on the same side of the sub-display area, so that a narrow frame can be achieved on the other side, and the data line load between different sub-areas is evenly transitioned, thereby avoiding uneven display and visual split screen caused by sudden changes in the load of the data line 10 between the first sub-area and the second sub-area.

[0043] Please continue to refer to Figure 1 to Figure 3 In any adjacent first sub-region and second sub-region, the data fan-out line of the first transition region is symmetrically arranged with the data fan-out line of the second transition region; the second sub-region includes at least one intermediate second sub-region SA2; the intermediate second sub-region SA2 is adjacent to the third sub-region SA3 on the side away from the first sub-region SA1; the third sub-region SA3 includes the transition region STA4, and the intermediate second sub-region SA2 includes the transition region STA3; the data fan-out line of the transition region STA3 is symmetrically arranged with the data fan-out line of the transition region STA4. This makes the data line load between the first sub-region and the second sub-region and between the second sub-region and the third sub-region uniformly transition, that is, the SA2 as the intermediate second sub-region and the first sub-region and the third sub-region on both sides include transition regions, and the load in the transition region is symmetrically arranged and uniformly transitioned, avoiding the uneven display and visual split screen phenomenon caused by the sudden change of the load of the data line 10 between the first sub-region and the second sub-region and between the second sub-region and the third sub-region.

[0044] Due to the space limitation of the layout, the data fan-out lines of adjacent sub-non-display areas are crowded in space when symmetrically arranged, and even cannot meet the layout requirements. Therefore, in another embodiment of the present application, please refer to Figure 4 and Figure 5 , Figure 4 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0045] Figure 5 for Figure 4 A partial enlarged schematic diagram of the C3 and C4 regions;

[0046] The first sub-area SA1 includes a first data fan-out line 11 and a first binding area 30; the second sub-area SA2 includes a second data fan-out line 11 and a second binding area 30; the first data fan-out line 11 and the first binding area 30 and the second data fan-out line 11 and the second binding area 30 are located on the opposite side of the sub-display area; the data fan-out line of the first transition area STA1 and the data fan-out line of the second transition area STA2 are centrally symmetrical about the midpoint D of the boundary line between the first transition area and the second transition area. The data line load between different sub-areas is uniformly transferred, avoiding the uneven display and visual split screen phenomenon caused by the sudden change of the load of the data line 10 of the first sub-area and the second sub-area. In addition, the space for layout is released on both sides of the sub-display area, which greatly reduces the difficulty of layout, and reserves sufficient space for the symmetrical setting of the data fan-out lines corresponding to the adjacent sub-areas, avoiding the inability to complete the symmetrical design due to crowded layout space.

[0047] Furthermore, since the display panel needs to be subjected to VT visual testing during the production process, a shorting bar and a VT pad need to be set in the non-display area of ​​the display panel, resulting in the need to adjust the setting position of the binding terminal layout in the edge sub-display area according to the position of the above-mentioned device. The binding terminal cannot be set in the center of the sub-area. Therefore, in another embodiment of the present application, please refer to Figure 6 to Figure 9 , Figure 6 A schematic diagram of another display panel provided by an embodiment of the present invention; Figure 7 for Figure 6 A partial enlarged schematic diagram of the middle C5 region; Figure 8 A schematic diagram of another display panel provided by an embodiment of the present invention; Fig. 9 for Figure 8 A partial enlarged schematic diagram of the C6 and C7 regions;

[0048] Please refer to Figure 6 and Figure 7 , Figure 6 and Figure 7Take the first data fan-out line 11a and the first binding area 3a as well as the second data fan-out line 11b and the second binding area 3b as an example to be described in the same side of the sub-display area. The first sub-area SA1 includes the first binding center line 301 and the first display center line 101; both sides of the first binding center line 301 include the same number of the first data fan-out lines 11a and the first binding terminals; both sides of the first display center line 101 include the same pixel columns; the second sub-area SA2 includes the second binding center line 302 and the second display center line 102; both sides of the second binding center line 302 include the same number of the second data fan-out lines 11b and the second binding terminals; both sides of the second display center line 302 include the same pixel columns; the first binding center line 301 is offset by a first preset distance △X1 in the first direction compared to the first display center line 101; the second binding center line 302 is offset by a second preset distance △X2 in the second direction compared to the second display center line 102; the first preset distance △X1 is equal to the second preset distance △X2, and the first direction is opposite to the second direction. In this embodiment, the binding terminals in the first sub-area SA1 are offset by a first preset distance in the first direction compared to the center line of the first display area, thereby releasing the space on the side of the first non-display area away from the binding terminals, which is used to set up components such as VT pad test devices or signal lines of shift registers, thereby avoiding the failure to timely discover defects in the display panel during the manufacturing process due to the lack of test devices. In addition, the second binding terminals corresponding to the second sub-area SA2 adjacent to the first sub-area SA1 are moved as a whole to a second direction opposite to the first direction, so that the data line load between the first sub-area and the second sub-area is evenly transferred, thereby avoiding the uneven display and visual split screen phenomenon caused by the sudden change of the load of the data line 10 in the first sub-area and the second sub-area.

[0049] Please continue to refer to Figure 8 and Fig. 9 , Figure 8 and Fig. 9Take the example that the first data fan-out line 11a and the first binding area 3a and the second data fan-out line 11b and the second binding area 3b are located on different sides of the sub-display area. The first sub-area SA1 includes the first binding center line 301 and the first display center line 101; both sides of the first binding center line 301 include the same number of the first data fan-out lines 11a and the first binding terminals; both sides of the first display center line 101 include the same pixel columns; the second sub-area SA2 includes the second binding center line 302 and the second display center line 102; both sides of the second binding center line 302 include the same number of the second data fan-out lines 11b and the second binding terminals; both sides of the second display center line 302 include the same pixel columns; the first binding center line 301 is offset by a first preset distance △X1 in the first direction compared to the first display center line 101; the second binding center line 302 is offset by a second preset distance △X2 in the second direction compared to the second display center line 102; the first preset distance △X1 is equal to the second preset distance △X2, and the first direction is opposite to the second direction. In this embodiment, the binding terminals in the first sub-area SA1 are offset by a first preset distance in the first direction compared to the center line of the first display area, thereby releasing the space on the side of the first non-display area away from the binding terminals, which is used to set up components such as VT pad test devices or signal lines of shift registers, thereby avoiding the failure to timely discover defects in the display panel during the manufacturing process due to the lack of test devices. In addition, the second binding terminals corresponding to the second sub-area SA2 adjacent to the first sub-area SA1 are moved as a whole to a second direction opposite to the first direction, so that the data line load between the first sub-area and the second sub-area is evenly transferred, thereby avoiding the uneven display and visual split screen phenomenon caused by the sudden change of the load of the data line 10 in the first sub-area and the second sub-area.

[0050] Furthermore, since the resolution of the display panel is customized by the customer, medium and large-sized products such as automotive, industrial control, and special display products generally do not have fixed specifications and are highly customized products. In the traditional design process for such customized products, each product needs to be completely redesigned, which greatly increases the design time and design cost. This embodiment provides a display panel that can adapt to multiple products with only a small range of changes.

[0051] Please refer to Fig.10 , Fig.10A schematic diagram of another display panel provided for an embodiment of the present invention; in this embodiment, the sub-area SA of the display panel includes at least one non-equal sub-area NCSA and at least two normal sub-areas CSA, and the number of data lines 10 in the non-equal sub-area NCSA is greater than or less than the number of data lines 10 in the normal sub-area CS; the number of data lines in each normal sub-area CSA is equal. When it is necessary to design another product with different specifications, a universal design is adopted for the normal sub-area CSA to save design costs, and a customized design is performed according to the specifications for the non-equal sub-area NCSA, including designing binding terminals, chip-on-chip films, etc. for the non-equal area NCSA. The display panel using this embodiment can meet the design requirements of the resolution of multiple products by only changing the design of the non-equal area NCSA, while avoiding the phenomenon of uneven display and visual split screen caused by sudden load changes.

[0052] For further information, please continue to refer to Fig.10 When the number of data lines in the non-uniform sub-area NCSA is less than the number of data lines in the normal sub-area CSA, the non-uniform sub-area NCSA is adjacent to the non-display area along the direction of the scan line 20. Figure 1 For all sub-areas, the middle sub-area is adjacent to both sub-areas (sub-area SA2 is adjacent to both sub-area SA1 and sub-area SA3). Please refer to Figure 2 and Figure 3 , the sub-area SA2 located in the middle needs to be set with the second transition area STA2 and the third transition area STA3, which are symmetrically arranged with the data lines of the first transition area STA1 and the fourth transition area STA4 respectively. Therefore, two transition areas need to be set for the sub-area located in the middle. In this embodiment, since the number of data lines in the non-equal sub-area NCSA is less than the number of data lines in the normal sub-area CSA or the non-equal sub-area NCSA cannot be set with two transition areas, the load suddenly changes, which in turn causes uneven display or even visual split screen. In this embodiment, the divided equal sub-area NCSA is adjacent to the display area on one side in the direction of the scan line, so that a transition area only needs to be set for the non-equal display area, which can avoid the sudden load change caused by the aforementioned reasons.

[0053] In another embodiment of the present application, please refer to Fig.11 , Fig.11 A schematic diagram of another display panel provided in an embodiment of the present invention; in this embodiment, the display panel includes k sub-areas; the number of data lines in the non-uniform sub-area NCSA is greater than the number of data lines in the normal sub-area CSA,

[0054] When k is an even number, the non-uniform sub-area NCSA is the k / 2th or k / 2+1th sub-area;

[0055] When k is an odd number, the non-uniform sub-area NCSA is the (k+1) / 2th sub-area. It should be noted that the ordinal number here refers to the ordinal number along the direction of the scan line.

[0056] Since the number of data lines in the non-uniform sub-area NCSA is greater than the number of data lines in the normal sub-area CSA in this embodiment, there is no problem of the load not being able to transition evenly due to insufficient space to set up two transition areas as mentioned in the previous embodiment. If the non-uniform sub-area NCSA is also set at a position adjacent to the non-display area along the scan line direction, that is, at the edge of the display panel, the data fan-out lines of each sub-area are not symmetrically set with the symmetry axis of the entire display panel as the symmetry axis. Therefore, in order to achieve a more uniform load transition and a better display effect, in this embodiment, when k is an even number, the non-uniform sub-area NCSA is the k / 2 or k / 2+1 sub-area; when k is an odd number, the non-uniform sub-area NCSA is the (k+1) / 2 sub-area; that is, the non-uniform sub-area NCSA is set in the middle of the display panel as much as possible, so that the data fan-out lines of each sub-area are set as symmetrically as possible with the symmetry axis of the entire display panel as the symmetry axis, so as to achieve a better load transition effect.

[0057] Furthermore, after the binding terminals of the display panel are bound to the COF, the binding terminals of the display panel are in contact with the binding contacts, and the driver chip is disposed on the COF or the flexible circuit board, and then the data signal can be transmitted to the display panel through the driver chip to drive the display panel to display. The COF here can be a separate COF, one end of which is connected to the display panel, the other end of which is connected to the flexible circuit board, and the driver chip is disposed on the flexible circuit board; or the COF and the flexible circuit board can be an integrated structure, which is not limited in this application.

[0058] However, integrating peripheral circuits such as shift register circuits in display panels is a relatively mature technology. Integrating shift register circuits in display panels can reduce material costs and improve production efficiency. Figure 1 As shown, the shift register circuit is integrated in the non-display area on the left and right sides of the display panel to provide scanning signals to the display area. The shift register requires a clock signal, a power signal, and a start signal to work; these signals need to be transmitted from the driver chip to the shift register circuit, which means that peripheral signal binding terminals need to be set on the display panel. The binding terminals follow the principle of proximity, so there are peripheral signal binding terminals only in the edge area and no peripheral signal binding terminals in the middle sub-area, which results in a different total number of binding terminals in the edge sub-area and the non-edge sub-area, which brings difficulties to the design of medium and large-sized display panels.

[0059] Please refer to Fig. 12A and12B , Fig. 12A A schematic diagram of another display panel provided by an embodiment of the present invention; Fig. 12B for Fig. 12A EE' in the figure. The sub-area SA includes an edge sub-area ESA and a non-edge sub-area NESA; in the present embodiment, along the direction of the scan line 20, the edge sub-area ESA is adjacent to the non-display area, and the non-edge sub-area NESA is not adjacent to the non-display area; that is, the edge sub-area ESA is a sub-area adjacent to the shift register VSR, and the non-edge sub-area is a sub-area not adjacent to the shift register. The edge sub-area ESA includes a peripheral signal binding terminal 30b and a fan-out signal binding terminal 30a; the non-edge sub-area NESA includes a fan-out signal binding terminal 30a.

[0060] Furthermore, in one embodiment of the present application, the number of data fan-out line binding terminals 30a of each sub-area SA is the same; that is, the number of data lines corresponding to each sub-area is the same, which is conducive to the display uniformity of the display panel. The display panel of this embodiment includes a chip-on-chip film bound to each sub-display area, and the chip-on-chip film includes a first-specification chip-on-chip film COF1 and a second-specification chip-on-chip film COF2; the first-specification chip-on-chip film COF1 can bind up to m binding contacts 50, and the second-specification chip-on-chip film COF2 can bind up to n binding contacts 50, m<n; the non-edge sub-area NESA is bound to the first-specification chip-on-chip film; the edge sub-area ESA is bound to the second-specification chip-on-chip film. This embodiment uses two different specifications of chip-on-chip films COF in a display panel, so that the first-specification binding terminal COF1 has more binding contacts than the second-specification binding terminal COF2 for binding the peripheral signal binding terminals 30b of the edge sub-area ESA compared to the non-edge sub-area NESA. The present application avoids the waste of chip-on-chip binding contacts while ensuring display uniformity.

[0061] Furthermore, in the edge sub-area ESA, the peripheral signal binding terminal 30b is located on the side of the fan-out signal binding terminal 30a away from the non-edge sub-area ESA. This is conducive to the symmetrical setting of the data fan-out lines in the edge sub-area ESA and the non-edge sub-area NESA, so that the data line load transitions evenly and avoids uneven display caused by sudden changes in load.

[0062] In another embodiment of the present application, please refer to Fig.13A and 13B , Fig.13A A schematic diagram of another display panel provided by an embodiment of the present invention; Fig. 13B for Fig.13AThe cross-sectional diagram of FF' in FIG. The number of data fan-out line binding terminals 30a in each sub-area SA is the same; the non-edge sub-area NESA also includes a virtual binding terminal 30c, and the sum of the number of data fan-out line binding terminals 30a and virtual binding terminals 30c in the non-edge sub-area NESA is equal to the sum of the number of peripheral signal binding terminals 30b and fan-out signal binding terminals 30a in the edge sub-area ESA; the display panel includes a chip-on-chip film bound to each sub-area, and the chip-on-chip film includes a chip-on-chip film of the third specification COF3; the non-edge sub-area NESA and the edge sub-area ESA are both bound to the chip-on-chip film of the third specification COF3; the present application sets a virtual binding terminal so that the total number of binding terminals in the non-edge sub-area and the edge sub-area is equal, so that the chip-on-chip film of the same specification can be used, which reduces the cost of customized chip-on-chip film, reduces the difficulty of material sorting, and also reduces the probability of operator error.

[0063] Furthermore, the adjacent non-edge sub-areas NESA have a boundary line, and the virtual binding terminals 30c in the adjacent non-edge sub-areas NESA are arranged axially symmetrically about the boundary line to make the data line load transition uniform. In addition, multiple virtual binding terminals do not need to be arranged adjacent to each other. The virtual binding terminals can be evenly dispersed among other binding terminals to avoid corrosion problems caused by excessive potential differences between adjacent binding terminals, and short circuit problems caused by COF misalignment. In addition, since the edge sub-area ESA only needs to set a transition area and the data fan-out lines in the transition area of ​​the adjacent non-edge sub-area NESA are symmetrically arranged, reducing the number of data lines in the edge sub-area has no effect on the uniform transition of the load.

[0064] Furthermore, in the edge sub-area ESA, the peripheral signal binding terminal 30b is located on the side of the fan-out signal binding terminal 30a away from the non-edge sub-area ESA. This is conducive to the symmetrical setting of the data fan-out lines in the edge sub-area ESA and the non-edge sub-area NESA, so that the data line load transitions evenly and avoids uneven display caused by sudden changes in load.

[0065] In another embodiment of the present application, please refer to Fig.14A and 14B , Fig.14A A schematic diagram of another display panel provided by an embodiment of the present invention; Fig. 14B for Fig.14ASchematic diagram of the cross section of GG'. In this embodiment, the number of data fan-out line binding terminals 30a in the non-edge sub-area NESA is equal to the sum of the number of peripheral signal binding terminals 30b and fan-out signal binding terminals 30a in the edge sub-area ESA; the display panel includes a chip-on-chip film bound to each sub-area, and the chip-on-chip film includes a fourth-specification chip-on-chip film COF4; the non-edge sub-area NESA and the edge sub-area ESA are both bound to the fourth-specification chip-on-chip film COF4. That is, in this embodiment, the number of data lines in the edge sub-area ESA is less than the number of data lines in the non-edge sub-area NESA. By reducing the number of data lines in the edge sub-area ESA, extra binding contacts 50 are left for the fourth-specification chip-on-chip film COF4 for binding with the peripheral signal binding terminals 30b, ensuring that the display panel uses the same chip-on-chip film, reducing the cost of customized chip-on-chip films, reducing the difficulty of material sorting, and reducing the probability of operator errors.

[0066] In some embodiments of this application, please refer to Fig.15 and Fig.16 , Fig.15 A schematic diagram of another display panel provided by an embodiment of the present invention; Fig.16 for Fig.15 A partial enlarged schematic diagram of the C8 area; the shift register circuit may not be set in this embodiment, and the scan signal is transmitted to the scan line through the scan signal binding terminal. Specifically, along the direction of the data line 10, the display panel includes at least two sub-scan areas SSA; the sub-scan area SSA includes a first sub-scan area SSA1 and a second sub-scan area SSA2 that are adjacently arranged; the first sub-scan area SSA1 includes a first scan transition area SSTA1 that is adjacent to the second sub-scan area SSA2; the second sub-scan area SSA2 includes a second scan transition area SSTA2 that is adjacent to the first scan transition area SSTA1; the scan fan-out line 21 of the first scan transition area SSTA1 and the scan fan-out line 21 of the second scan transition area SSTA2 are symmetrically arranged. For example Fig.15 In the embodiment, the scanning fan-out lines 21 of the first scanning transition area SSTA1 and the scanning fan-out lines 21 of the second scanning transition area SSTA2 are arranged in an axisymmetric manner with respect to the symmetry axis A3 of the first scanning sub-area and the second scanning sub-area.

[0067] In the present application, the first scanning transition area SSTA1 is set adjacent to the second scanning sub-area SSA2 in the first scanning sub-area SSA1, and the second scanning transition area SSTA2 is set adjacent to the first scanning transition area SSTA1 in the second scanning sub-area SSA2. The scanning fan-out line 21 of the first scanning transition area SSTA1 and the scanning fan-out line 21 of the second scanning transition area SSTA2 are symmetrically set, thereby realizing the symmetrical setting of the scanning line load of the first scanning transition area SSTA1 and the scanning line load of the second scanning transition area SSTA2, thereby avoiding the uneven display and visual split screen phenomenon caused by the different loads of the scanning line 20 of the first scanning sub-area SSA1 and the second scanning sub-area SSA2.

[0068] In addition, in order to make the load of the entire display panel more uniform, optionally, the number of sub-areas k is an even number, the sub-areas are arranged in pairs, and the sub-areas arranged in pairs are symmetrical about the symmetry axis A4 of the display panel. For example, sub-area SA2 and sub-area SA3 are axially symmetrical about the symmetry axis A4; sub-area SA1 and sub-area SA4 are axially symmetrical about the symmetry axis A4.

[0069] The present application also discloses a display device, which includes the above-mentioned display panel. The display device of the present application includes but is not limited to the following: Fig.17 The vehicle-mounted display panel 1000, cellular mobile phones, tablet computers, computer displays, displays applied to smart wearable devices, display devices applied to vehicles such as automobiles, etc. As long as the display device includes the organic light-emitting display panel included in the display device disclosed in this application, it is deemed to fall within the protection scope of this application.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized in that: include: A plurality of sub-areas arranged along a first direction, each of the sub-areas comprising a sub-display area and a sub-non-display area; Each of the sub-display areas includes scan lines extending along the first direction and arranged in the second direction and data lines extending along the second direction and arranged in the first direction; the first direction intersects the second direction; Each of the sub non-display areas comprises a data fan-out line and a binding terminal connected to a data line in the corresponding sub display area; at least part of the binding terminals are electrically connected to the data fan-out line; The sub-region includes a first sub-region and a second sub-region that are adjacently arranged; the first sub-region includes a first transition region that is adjacent to the second sub-region; the second sub-region includes a second transition region that is adjacent to the first transition region; the data fan-out line of the first transition region is symmetrically arranged with the data fan-out line of the second transition region; The first sub-area includes a first data fan-out line and a first binding area; the second sub-area includes a second data fan-out line and a second binding area; the first data fan-out line and the first binding area are located on different sides of the sub-display area from the second data fan-out line and the second binding area; the data fan-out line of the first transition area and the data fan-out line of the second transition area are centrally symmetrical about the midpoint of the boundary line between the first transition area and the second transition area, and / or The sub-regions include at least one non-uniform sub-region and at least two normal sub-regions, the number of data lines in the non-uniform sub-region is greater than or less than the number of data lines in the normal sub-region; the number of data lines in each normal sub-region is equal.

2. The display panel according to claim 1, characterized in that: The first transition region includes a first data line, and the second transition region includes a second data line; the distance between the first data line and the junction line is equal to the distance between the second data line and the junction line; the length of the data fan-out line corresponding to the first data line is equal to the length of the data fan-out line corresponding to the second data line; In the first transition region, along the direction pointing to the boundary line between the first sub-region and the second sub-region, the length of the data fan-out line gradually decreases; in the second transition region, along the direction pointing to the boundary line between the first sub-region and the second sub-region, the length of the data fan-out line gradually decreases; or, In the first transition region, the length of the data fan-out line gradually increases along the direction pointing to the boundary line between the first sub-region and the second sub-region; in the second transition region, the length of the data fan-out line gradually increases along the direction pointing to the boundary line between the first sub-region and the second sub-region.

3. The display panel according to claim 1, characterized in that: The first sub-area includes a first data fan-out line and a first binding area; the second sub-area includes a second data fan-out line and a second binding area; the first data fan-out line, the first binding area, the second data fan-out line and the second binding area are located on the same side of the sub-display area; The data fan-out lines of the first transition region and the data fan-out lines of the second transition region are axially symmetric with respect to a boundary line between the first transition region and the second transition region.

4. The display panel according to claim 1, characterized in that: The first sub-area includes a first binding center line and a first display center line; both sides of the first binding center line include the same number of first data fan-out lines and first binding terminals; both sides of the first display center line include the same pixel columns; The second sub-area includes a second binding center line and a second display center line; both sides of the second binding center line include the same number of second data fan-out lines and second binding terminals; both sides of the second display center line include the same pixel columns; The first binding center line is offset by a first preset distance in a first direction compared to the first display center line; the second binding center line is offset by a second preset distance in a second direction compared to the second display center line; the first preset distance is equal to the second preset distance, and the first direction is opposite to the second direction.

5. The display panel according to claim 1, characterized in that: The number of data lines in the non-uniform sub-region is less than the number of data lines in the normal sub-region, and along the scan line direction, the non-uniform sub-region is adjacent to the non-display area.

6. The display panel according to claim 1, characterized in that: The display panel includes k sub-areas; the number of data lines in the non-uniform sub-areas is greater than the number of data lines in the normal sub-areas, When k is an even number, the non-uniform sub-area NCSA is the k / 2th or k / 2+1th sub-area; When k is an odd number, the non-uniform sub-area NCSA is the (k+1) / 2th sub-area.

7. The display panel according to claim 1, characterized in that: The sub-region includes an edge sub-region and a non-edge sub-region; along the scan line direction, the edge sub-region is adjacent to the non-display region, and the non-edge sub-region is not adjacent to the non-display region; The edge sub-region includes peripheral signal binding terminals and fan-out signal binding terminals; the non-edge sub-region includes fan-out signal binding terminals; The number of fan-out signal binding terminals of each of the sub-areas is the same; The display panel includes a chip-on-chip film bound to each of the sub-display areas, and the chip-on-chip film includes a first-specification chip-on-chip film and a second-specification chip-on-chip film; the first-specification chip-on-chip film can be bound to m binding contacts at most, and the second-specification chip-on-chip film can be bound to n binding contacts at most, where m<n; The non-edge sub-region is bound to the first-specification chip-on-film; and the edge sub-region is bound to the second-specification chip-on-film.

8. The display panel according to claim 1, characterized in that: The sub-region includes an edge sub-region and a non-edge sub-region; along the scan line direction, the edge sub-region is adjacent to the non-display region, and the non-edge sub-region is not adjacent to the non-display region; The edge sub-region includes peripheral signal binding terminals and fan-out signal binding terminals; the non-edge sub-region includes fan-out signal binding terminals; The number of fan-out signal binding terminals in each of the sub-areas is the same; the non-edge sub-area further includes virtual binding terminals, and the sum of the number of fan-out signal binding terminals and the virtual binding terminals in the non-edge sub-area is equal to the sum of the number of peripheral signal binding terminals and fan-out signal binding terminals in the edge sub-area; The display panel includes a chip-on-chip film bound to each of the sub-regions, and the chip-on-chip film includes a chip-on-chip film of a third specification; The non-edge sub-region and the edge sub-region are both bound to the chip-on-film of the third specification.

9. The display panel according to claim 1, characterized in that: The sub-region includes an edge sub-region and a non-edge sub-region; along the scan line direction, the edge sub-region is adjacent to the non-display region, and the non-edge sub-region is not adjacent to the non-display region; The edge sub-region includes peripheral signal binding terminals and fan-out signal binding terminals; the non-edge sub-region includes fan-out signal binding terminals; The number of fan-out signal binding terminals in the non-edge sub-region is equal to the sum of the number of peripheral signal binding terminals and fan-out signal binding terminals in the edge sub-region; The display panel includes a chip-on-chip film bound to each of the sub-regions, and the chip-on-chip film includes a chip-on-chip film of a fourth specification; The non-edge sub-region and the edge sub-region are both bound to the fourth-specification chip-on-film.

10. The display panel according to claim 1, characterized in that: Along the data line direction, the display panel includes at least two sub-scanning areas; the sub-scanning areas include a first sub-scanning area and a second sub-scanning area that are adjacent to each other; the first sub-scanning area includes a first scanning transition area adjacent to the second sub-scanning area; the second sub-scanning area includes a second scanning transition area adjacent to the first scanning transition area; the scanning fan-out line of the first scanning transition area is symmetrically arranged with the scanning fan-out line of the second scanning transition area.

11. A display device, characterized in that: A display panel comprising any one of claims 1 to 10.

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