Display panel and display device

Abstract

The present application discloses a display panel and a display device; the display panel includes a display part, a binding part, and a fan-out part, the binding part includes at least two first binding parts, the first binding part includes multiple first terminals and multiple second terminals, the multiple first terminals are arranged on both sides of the multiple second terminals, the fan-out part includes at least two fan-out sub-parts, the fan-out sub-parts include multiple fan-out routing lines, the first ends of the multiple fan-out routing lines are electrically connected to the second terminals, the second ends of the multiple fan-out routing lines are connected to the display part, and the multiple fan-out routing lines are symmetrically arranged about a first center line; the present application reduces the space occupied by the fan-out routing lines in the direction of the first center line by symmetrically arranging the multiple fan-out routing lines in the fan-out sub-parts about the first center line, and at the same time arranges the first terminals of the first binding part on both sides of the second terminals, so that the second terminals can be connected to the fan-out routing lines in the fan-out sub-parts accordingly, thereby reducing the size of the fan-out routing lines in the direction of the first center line and achieving a narrow frame.

Description

Technical Field

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

[0002] A driver chip and a flexible circuit board are provided in the non-display area of ​​the display panel. The flexible circuit board is used to provide external power and signals to the display panel and provide input signals to the driver chip. The driver chip is used to control the display panel to display images. The driver chip and the flexible circuit board can be electrically connected to the display panel by binding. The driver chip is connected to the display area of ​​the display panel through fan-out wiring. Since there are a large number of fan-out wirings and the fan-out wirings need to be connected to the driver chip, the wiring space requirement of the fan-out wiring is large, making it difficult to achieve a narrow frame of the display panel.

[0003] How to optimize the connection method between the fan-out routing and the binding part and reduce the frame size is one of the technical problems that technicians in this field urgently need to solve. Summary of the invention

[0004] The present application provides a display panel and a display device to optimize the connection method between the fan-out wiring and the binding part to achieve a narrow frame of the display panel.

[0005] To solve the above-mentioned problems, the technical solutions provided by this application are as follows:

[0006] The present application provides a display panel, the display panel comprising:

[0007] Display unit;

[0008] A binding portion, comprising at least two first binding portions, wherein the at least two first binding portions are separately arranged, wherein the first binding portion comprises a plurality of first terminals and a plurality of second terminals, and the plurality of first terminals are arranged on both sides of the plurality of second terminals; and

[0009] a fan-out portion, located between the display portion and the binding portion, the fan-out portion comprising at least two fan-out sub-portions corresponding to at least two of the first binding portions, the fan-out sub-portions comprising a plurality of fan-out traces, a first end of the plurality of fan-out traces being electrically connected to the second terminal, and a second end of the plurality of fan-out traces being connected to the display portion;

[0010] Among them, the plurality of fan-out routing lines are symmetrically arranged about a first center line of the corresponding fan-out sub-portion, and the first center line is parallel to a direction from the display portion to the binding portion.

[0011] In the display panel of the present application, the display panel further includes:

[0012] The second binding portion includes a first sub-binding portion located outside the display panel and a second sub-binding portion located in a middle area of ​​the first sub-binding portion close to the display panel, the first sub-binding portion includes a plurality of first binding terminals, and the second sub-binding portion includes a plurality of second binding terminals;

[0013] The first binding terminal is electrically connected to the first terminal, and the second binding terminal is electrically connected to the first terminal.

[0014] In the display panel of the present application, the number of the second binding terminals in a second sub-binding portion is greater than the number of the first binding terminals in a first sub-binding portion.

[0015] In the display panel of the present application, a plurality of the second terminals are arranged along a direction perpendicular to the first center line, and at least two of the second terminals are arranged along a direction parallel to the first center line;

[0016] Wherein, in a direction parallel to the first center line, the center lines of any of the second terminals do not overlap.

[0017] In the display panel of the present application, a plurality of the first terminals are arranged along a direction perpendicular to the first center line, wherein, in a first binding portion, the number of the first terminals located on both sides of the second terminal is the same.

[0018] In the display panel of the present application, the first binding portion further includes a plurality of third terminals arranged in a direction parallel to the first center line, and the third terminals of two adjacent first binding portions are electrically connected correspondingly via wiring arranged on the display panel.

[0019] The present application also provides a display device, comprising the above-mentioned display panel, and the display device further comprises:

[0020] a driving chip corresponding to the first binding portion, the driving chip comprising a plurality of first chip terminals, a plurality of second chip terminals and a plurality of third chip terminals, wherein a first chip terminal is electrically connected to a first terminal correspondingly, a second chip terminal is electrically connected to a second terminal correspondingly, and a third chip terminal is electrically connected to a third terminal correspondingly;

[0021] A flexible circuit board, comprising a first circuit portion corresponding to the first sub-binding portion and a second circuit portion corresponding to the second sub-binding portion, wherein the first circuit portion comprises a plurality of first circuit terminals, the second circuit portion comprises a plurality of second circuit terminals, a first circuit terminal is electrically connected to a first binding terminal, and a second circuit terminal is electrically connected to a second binding terminal;

[0022] Among them, in the top view direction of the display device, the first chip terminal overlaps with the first terminal, the second chip terminal overlaps with the second terminal, and the third chip terminal overlaps with the third terminal; the first circuit terminal overlaps with the first binding terminal, and the second circuit terminal overlaps with the second binding terminal.

[0023] In the display device of the present application, the driving chip further includes a plurality of fourth chip terminals, the fourth chip terminals are arranged in a direction perpendicular to the first center line, and the fourth chip terminals are disposed on a side of the second terminal close to the display portion.

[0024] In the display device of the present application, in a direction perpendicular to the first center line, the outer dimensions of the flexible circuit board are smaller than or equal to the outer dimensions of the display panel, and the first circuit portion and the second circuit portion are integrally arranged.

[0025] In the display device of the present application, in the cross-sectional view direction of the display device, a first conductive adhesive is arranged between the driving chip and the display panel, and a second conductive adhesive is arranged between the flexible circuit board and the display panel. The driving chip and the display panel are electrically connected through the first conductive adhesive, and the flexible circuit board and the display panel are electrically connected through the second conductive adhesive.

[0026] Beneficial effects: The present application discloses a display panel and a display device; the display panel includes a display portion, a binding portion, and a fan-out portion, the binding portion includes at least two first binding portions, the at least two first binding portions are separately arranged, the first binding portion includes a plurality of first terminals and a plurality of second terminals, the plurality of first terminals are arranged on both sides of the plurality of second terminals, the fan-out portion is located between the display portion and the binding portion, the fan-out portion includes at least two fan-out sub-portions corresponding to the at least two first binding portions, the fan-out sub-portion includes a plurality of fan-out traces, the first ends of the plurality of fan-out traces are connected to the second terminals The second ends of the plurality of fan-out routings are connected to the display portion, wherein the plurality of fan-out routings are symmetrically arranged about a first midline of the corresponding fan-out sub-portion, and the first midline is parallel to a direction from the display portion to the binding portion; the present application reduces the space occupied by the fan-out routing in the direction of the first midline by symmetrically arranging the plurality of fan-out routings in the fan-out sub-portion about the first midline, and at the same time arranges the first terminal of the first binding portion on both sides of the second terminal, so that the second terminal can be connected to the fan-out routing in the fan-out sub-portion accordingly, thereby reducing the size of the fan-out routing in the direction of the first midline and achieving a narrow frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0028] Figure 1 A schematic diagram of a top view structure of a display panel of the present application;

[0029] Figure 2 Another schematic diagram of the top view structure of the display panel of the present application;

[0030] Figure 3 This is an enlarged structural schematic diagram of the first binding part of the present application;

[0031] Figure 4 It is an enlarged structural schematic diagram of the fan-out portion of the display panel of the present application;

[0032] Figure 5 A schematic diagram of a top view structure of the display device of the present application;

[0033] Figure 6 This is a schematic diagram of the enlarged structure of the driver chip of the present application;

[0034] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure of the display device at AA.

[0035] Description of reference numerals:

[0036] Display panel 100, display unit 101, binding unit 20, first binding unit 21, first terminal 211, second terminal 212, fan-out unit 10, fan-out sub-unit 11, fan-out trace 111, first center line CL, second binding unit 22, first sub-binding unit 221, second sub-binding unit 222, first binding terminal 2210, second binding terminal 2220, third terminal 213, driver chip 30, first chip terminal 31, second chip terminal 32, third chip terminal 33, flexible circuit board 40, first circuit unit 41, second circuit unit 42, fourth chip terminal 34, first conductive adhesive 51, second conductive adhesive 52. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; and "inside" and "outside" refer to the outline of the device.

[0038] A driver chip and a flexible circuit board are provided in the non-display area of ​​the display panel. The flexible circuit board is used to provide external power and signals to the display panel and provide input signals to the driver chip. The driver chip is used to control the display panel to display images. The driver chip and the flexible circuit board can be electrically connected to the display panel through binding. The driver chip is connected to the display area of ​​the display panel through a fan-out trace. Since there are a large number of fan-out traces and the fan-out traces need to be connected to the driver chip accordingly, the wiring space requirement for the fan-out traces is large, making it difficult to achieve a narrow frame of the display panel. How to optimize the connection method between the fan-out traces and the binding part and reduce the frame size is one of the technical problems that technicians in this field urgently need to solve. Based on the above technical problems, the present application proposes the following solutions.

[0039] The present application provides a display panel 100, wherein the display panel 100 includes a display portion 101, a binding portion 20, and a fan-out portion 10, wherein the binding portion 20 includes at least two first binding portions 21, and the at least two first binding portions 21 are separately arranged, and the first binding portion 21 includes a plurality of first terminals 211 and a plurality of second terminals 212, and the plurality of first terminals 211 are arranged on both sides of the plurality of second terminals 212, and the fan-out portion 10 is located between the display portion 101 and the binding portion 20, and the fan-out portion 10 It includes at least two fan-out sub-sections 11 corresponding to at least two of the first binding sections 21, the fan-out sub-section 11 includes a plurality of fan-out routing lines 111, the first ends of the plurality of fan-out routing lines 111 are electrically connected to the second terminal 212, and the second ends of the plurality of fan-out routing lines 111 are connected to the display section 101, wherein the plurality of fan-out routing lines 111 are symmetrically arranged with respect to a first center line CL of the corresponding fan-out sub-section 11, and the first center line CL is parallel to a direction from the display section 101 to the binding section 20.

[0040] The present application reduces the space occupied by the fan-out lines 111 in the direction of the first center line CL by symmetrically arranging the multiple fan-out lines 111 in the fan-out sub-section 11 about the first center line CL, and at the same time arranges the first terminal 211 of the first binding section 21 on both sides of the second terminal 212 so that the second terminal 212 can be connected to the fan-out lines 111 in the fan-out sub-section 11 accordingly, thereby reducing the size of the fan-out lines 111 in the direction of the first center line CL and achieving a narrow frame.

[0041] See also Figures 1 to 7 , Figure 1 A schematic diagram of a top view of the display panel 100 of the present application; Figure 2 is another schematic diagram of a top view of the structure of the display panel 100 of the present application; Figure 3 It is an enlarged structural schematic diagram of the first binding portion 21 of the present application; Figure 4is an enlarged structural schematic diagram of the fan-out portion 10 of the display panel 100 of the present application; Figure 5 A schematic diagram of a top view structure of the display device of the present application; Figure 6 is an enlarged structural schematic diagram of the driver chip 30 of the present application; Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure of the display device at AA.

[0042] In this embodiment, the display panel 100 includes a liquid crystal display panel, an OLED display panel, an MLED display panel, etc.

[0043] In this embodiment, the display panel 100 includes a display portion 101 and a non-display portion disposed on the periphery of the display portion 101, and the display portion 101 is used to display a picture. A binding portion 20 is disposed in the non-display portion located on at least one side of the display panel 100, and the binding portion 20 includes at least two first binding portions 21 disposed separately. A plurality of first terminals 211 and a plurality of second terminals 212 are disposed in a first binding portion 21, wherein the second terminal 212 is disposed in the middle area of ​​the first binding portion 21, and the first terminal 211 is disposed on both sides of the middle area. The first binding portion 21 can be electrically connected to the driving chip 30 of the display panel 100, and the driving chip 30 drives the display portion 101 of the display panel 100 to display a picture.

[0044] In this example, see Figure 1 and Figure 4 The fan-out portion 10 is disposed between the display portion 101 and the binding portion 20. The fan-out portion 10 includes at least two fan-out sub-portions 11, and the fan-out sub-portions 11 correspond to the first binding portion 21. That is to say, in the display panel 100, the number of the fan-out sub-portions 11 is the same as the number of the first binding portion 21. The fan-out sub-portion 11 includes a plurality of fan-out traces 111, a first end of the fan-out trace 111 is electrically connected to the second terminal 212, and a second end of the fan-out trace 111 is connected to the display portion 101.

[0045] In this embodiment, the plurality of fan-out traces 111 in the fan-out sub-section 11 are symmetrical about the first center line CL, and the first center line CL is parallel to the direction from the display portion 101 to the binding portion 20. The plurality of fan-out traces 111 in each fan-out sub-section 11 are symmetrical about their respective first center lines CL.

[0046] See also Figure 1 and Figure 2 , Figure 1 In the case where the display panel 100 includes two first binding parts 21 and two fan-out sub-parts 11, Figure 2The display panel 100 includes three first binding parts 21 and three fan-out sub-parts 11. The number of the first binding parts 21 can be adjusted according to the size of the display panel 100, and the number of the fan-out sub-parts 11 is the same as the number of the first binding parts 21. The present application does not limit the number of the first binding parts 21 and the fan-out sub-parts 11.

[0047] In this embodiment, the first binding portion 21 can be symmetrically arranged about the center line of the display panel 100, or can be adjusted as needed. Among them, it is necessary to arrange the first terminal 211 on both sides of the second terminal 212. At the same time, it is also necessary that after the display panel 100 is bound and connected to the flexible circuit board 40, the size of the flexible circuit board 40 in the direction perpendicular to the first center line CL does not exceed the size of the display panel 100 in the direction perpendicular to the first center line CL, so that the side frame of the display panel 100 can achieve a narrow frame.

[0048] The technical solution of the present application is now described in conjunction with specific embodiments.

[0049] In the display panel 100 of the present application, the display panel 100 also includes a second binding portion 22, the second binding portion 22 includes a first sub-binding portion 221 located on the outside of the display panel 100 and a second sub-binding portion 222 located in the middle area of ​​the first sub-binding portion 221 close to the display panel 100, the first sub-binding portion 221 includes a plurality of first binding terminals 2210, and the second sub-binding portion 222 includes a plurality of second binding terminals 2220; the first binding terminal 2210 is electrically connected to the first terminal 211, and the second binding terminal 2220 is electrically connected to the first terminal 211.

[0050] In this embodiment, the display panel 100 further includes a second binding portion 22, which is located on a side of the fan-out wiring 111 away from the display portion 101. The second binding portion 22 includes a plurality of first sub-binding portions 221 and second sub-binding portions 222, wherein the first sub-binding portion 221 is located outside the display panel 100. Figure 1 and Figure 2 , the display panel 100 includes two first sub-binding parts 221 .

[0051] The second sub-binding portion 222 is disposed on one side of the first sub-binding portion 221 close to the middle area of ​​the display panel 100 , see Figure 1 , the display panel 100 includes a second sub-binding portion 222. Figure 2 , the display panel 100 includes two second sub-binding parts 222 .

[0052] The first sub-binding part 221 includes a plurality of first binding terminals 2210, and the second sub-binding part 222 includes a plurality of second binding terminals 2220. The first binding terminal 2210 is connected to the first terminal 211, and the second binding terminal 2220 is connected to the first terminal 211. It should be noted that the first binding terminal 2210 is connected to the first terminal 211 that is closer to it, and the second binding terminal 2220 is connected to the first terminal 211 that is closer to it. In other words, please refer to Figure 1 , the first binding terminal 2210 of the first sub-binding part 221 on the left side of the display panel 100 is electrically connected to the first terminal 211 on the left side of the first binding part 21 on the left side; a part of the second binding terminal 2220 of the second sub-binding part 222 is electrically connected to the first terminal 211 in the left first binding part 21, and another part of the second binding terminal 2220 is electrically connected to the first terminal 211 in the right first binding part 21. Thus, the distance of the connection wiring on the display panel 100 is minimized, the wiring space is further reduced, and a narrow frame is achieved.

[0053] In the display panel 100 of the present application, the number of the second binding terminals 2220 in a second sub-binding portion 222 is greater than the number of the first binding terminals 2210 in a first sub-binding portion 221 .

[0054] In this example, see Figure 1 and Figure 3 The number of first terminals 211 on both sides of the second terminal 212 in the same first binding part 21 can be the same, the second binding terminal 2220 includes a part connected to the first terminals 211 of at least two first binding parts 21, and the number of second binding terminals 2220 in a second sub-binding part 222 is greater than the number of first binding terminals 2210 in a first sub-binding part 221.

[0055] In this embodiment, the number of first terminals 211 on both sides of the second terminal 212 located in the same first binding portion 21 can be different, wherein the number of first terminals 211 close to the outer side of the display panel 100 is less than the number of first terminals 211 close to the middle area of ​​the display panel 100, so that when the outer first terminals 211 are connected to the flexible circuit board 40, the size of the flexible circuit board 40 in the direction perpendicular to the first center line CL does not exceed the size of the display panel 100 in the direction perpendicular to the first center line CL, thereby achieving a narrow frame of the side frame of the display panel 100.

[0056] In the display panel 100 of the present application, a plurality of second terminals 212 are arranged along a direction perpendicular to the first center line CL, and at least two second terminals 212 are arranged along a direction parallel to the first center line CL; wherein, in the direction parallel to the first center line CL, the center lines of any second terminal 212 do not overlap.

[0057] In this example, see Figure 1 and Figure 3 The plurality of second terminals 212 are distributed in an array, and the second terminals 212 are arranged at intervals in a direction perpendicular to the first center line CL and in a direction parallel to the first center line CL. In a direction parallel to the first center line CL, the center lines of the second terminals 212 in any column do not overlap. Thus, the plurality of second terminals 212 and the connection lines of the plurality of first ends of the plurality of fan-out traces 111 do not overlap, thereby preventing the lines from short-circuiting.

[0058] In a direction perpendicular to the first center line CL, the center lines of the second terminals 212 in any row do not overlap, so that the second terminals 212 do not overlap each other, thereby preventing a short circuit.

[0059] In the display panel 100 of the present application, a plurality of first terminals 211 are arranged along a direction perpendicular to the first center line CL, wherein in a first binding portion 21 , the number of the first terminals 211 located on both sides of the second terminal 212 is the same.

[0060] In this example, see Figure 1 and Figure 3 , a plurality of first terminals 211 are arranged in a direction perpendicular to the first center line CL, and the first terminals 211 are spaced apart from each other. The number of first terminals 211 on both sides of the second terminal 212 is the same, so that the number of first binding terminals 2210 of the first sub-binding portion 221 and the number of second binding terminals 2220 of the second sub-binding portion 222 are evenly distributed, reducing the wiring space and achieving a narrow frame.

[0061] In this example, see Figure 1 and Figure 3 The number of the first terminals 211 located on the outside of the first binding portion 21 can be smaller than the number of the first terminals 211 located on the inside of the first binding portion 21, so that the number of the first binding terminals 2210 of the first sub-binding portion 221 connected to the first terminals 211 on the display panel 100 is smaller than the number of the second binding terminals 2220 of the second sub-binding portion 222, so that the size of the first circuit portion 41 of the flexible circuit board 40 in the direction perpendicular to the first center line CL does not exceed the size of the display panel 100 in the direction perpendicular to the first center line CL, so that the side frame of the display panel 100 achieves a narrow frame.

[0062] In the display panel 100 of the present application, the first binding portion 21 further includes a plurality of third terminals 213 arranged in a direction parallel to the first center line CL, and the third terminals 213 of two adjacent first binding portions 21 are electrically connected correspondingly via wiring arranged on the display panel 100 .

[0063] In this embodiment, the first binding portion 21 further includes a plurality of third terminals 213, which are disposed on one side of the first binding portion 21 close to the middle area of ​​the display panel 100. The third terminals 213 may be arranged in a direction parallel to the first center line CL, and the third terminals 213 of two adjacent first binding portions 21 are electrically connected via wiring disposed on the display panel 100. The number of the third terminals 213 of two adjacent first binding portions 21 is the same and they are connected one-to-one.

[0064] It should be noted that the first binding portion 21 located on the outer side of the display panel 100 can be provided with a third terminal 213 only on one side close to the middle area of ​​the display panel 100, while the first binding portion 21 located in the middle area of ​​the display panel 100 can be provided with a third terminal 213 on both sides, so as to be connected to the first binding portions 21 on both sides thereof through the wiring on the display panel 100. Figure 3 The figure shows a case where the third terminal 213 is arranged only on one side of the first binding portion 21 close to the middle area of ​​the display panel 100 , and the third terminal 213 can be arranged on both sides or one side according to the requirements. This application does not limit this.

[0065] The present application also provides a display device, see Figure 5The display device includes the above-mentioned display panel 100, and the display device also includes: a driving chip 30, corresponding to the first binding portion 21, the driving chip 30 includes a plurality of first chip terminals 31, a plurality of second chip terminals 32 and a plurality of third chip terminals 33, a first chip terminal 31 is electrically connected to a first terminal 211, a second chip terminal 32 is electrically connected to a second terminal 212, and a third chip terminal 33 is electrically connected to a third terminal 213; a flexible circuit board 40, including a first circuit portion 41 corresponding to the first sub-binding portion 221 and a second circuit portion 42 corresponding to the second sub-binding portion 222 2. The first circuit portion 41 includes a plurality of first circuit terminals, and the second circuit portion 42 includes a plurality of second circuit terminals, wherein a first circuit terminal is electrically connected to a first binding terminal 2210, and a second circuit terminal is electrically connected to a second binding terminal 2220; wherein, in the top view direction of the display device, the first chip terminal 31 overlaps with the first terminal 211, the second chip terminal 32 overlaps with the second terminal 212, and the third chip terminal 33 overlaps with the third terminal 213; the first circuit terminal overlaps with the first binding terminal 2210, and the second circuit terminal overlaps with the second binding terminal 2220.

[0066] In this embodiment, the driver chip 30 corresponds to the first binding part 21, transmits the control signal to the first binding part 21, and then transmits it to the display part 101 through the fan-out wiring 111, thereby controlling the display of the display device. The number of the driver chips 30 is the same as the number of the first binding part 21. Figure 6 The driver chip 30 includes a plurality of first chip terminals 31, a plurality of second chip terminals 32, and a plurality of third chip terminals 33. The plurality of second chip terminals 32 are arranged in the middle area of ​​the driver chip 30, the first chip terminals 31 are arranged on both sides of the second chip terminals 32, and the third chip terminals 33 are arranged on one side of the middle area of ​​the driver chip 30 close to the display panel 100.

[0067] The plurality of first chip terminals 31 are arranged in a direction perpendicular to the first center line CL, and the number of first chip terminals 31 on both sides of the second chip terminal 32 can be the same or different, so that the first chip terminals 31 correspond to the first terminals 211 one by one.

[0068] The plurality of second chip terminals 32 are distributed in an array, and the second chip terminals 32 are arranged at intervals in a direction perpendicular to the first center line CL and in a direction parallel to the first center line CL. In the direction parallel to the first center line CL, the center lines of the second chip terminals 32 in any column do not overlap. Thus, the plurality of second chip terminals 32 correspond to the second terminals 212 one by one.

[0069] The plurality of third chip terminals 33 are arranged along a direction parallel to the first center line CL, so as to correspond one-to-one to the third terminals 213 .

[0070] In this embodiment, the second chip terminal 32 is electrically connected to the second terminal 212 of the first binding portion 21, and in the top view of the display device, the second chip terminal 32 overlaps with the second terminal 212. The first chip terminal 31 is electrically connected to the first terminal 211 of the first binding portion 21, and in the top view of the display device, the second chip terminal 32 overlaps with the first terminal 211. The third chip terminal 33 is electrically connected to the third terminal 213 of the first binding portion 21, and in the top view of the display device, the third chip terminal 33 overlaps with the third terminal 213.

[0071] In the display device of the present application, the driving chip 30 further includes a plurality of fourth chip terminals 34 , which are arranged in a direction perpendicular to the first center line CL and are disposed on a side of the second terminal 212 close to the display unit 101 .

[0072] In this embodiment, the driver chip 30 also includes a plurality of fourth chip terminals 34, which are arranged on the side of the second terminal 212 close to the display unit 101, and the fourth chip terminals 34 are arranged in a direction perpendicular to the first center line CL, thereby providing support for the driver chip 30, so that the driver chip 30 is more evenly stressed during the binding process and is less likely to be damaged.

[0073] In the display device of the present application, in a direction perpendicular to the first center line CL, the outer dimensions of the flexible circuit board 40 are smaller than or equal to the outer dimensions of the display panel 100 , and the first circuit portion 41 and the second circuit portion 42 are integrally provided.

[0074] In this example, see Figure 5 The first circuit portion 41 and the second circuit portion 42 are connected as one body, thereby reducing the number of flexible circuit boards 40 and reducing material management costs. In a direction perpendicular to the first center line CL, the outer dimensions of the flexible circuit board 40 are less than or equal to the outer dimensions of the display panel 100, so that the size of the flexible circuit board 40 does not exceed the display panel 100, and a narrow frame on the side of the display panel 100 is achieved.

[0075] In the display device of the present application, in the cross-sectional view direction of the display device, a first conductive adhesive 51 is arranged between the driving chip 30 and the display panel 100, and a second conductive adhesive 52 is arranged between the flexible circuit board 40 and the display panel 100. The driving chip 30 and the display panel 100 are electrically connected through the first conductive adhesive 51, and the flexible circuit board 40 and the display panel 100 are electrically connected through the second conductive adhesive 52.

[0076] In this example, see Figure 7 In the cross-sectional view direction of the display device, the driving chip 30 is bound and connected to the display panel 100 through the first conductive adhesive 51, and the flexible circuit board 40 is electrically connected to the display panel 100 through the second conductive adhesive 52. The first chip terminal 31 on the driving chip 30 is connected to the first terminal 211 of the first binding part 21, the second chip terminal 32 is connected to the second terminal 212, and the third chip terminal 33 is connected to the third terminal 213. The first circuit terminal of the flexible circuit board 40 is electrically connected to the first binding terminal 2210 of the first sub-binding part 221 of the display panel 100, and the second circuit terminal of the flexible circuit board 40 is electrically connected to the second binding terminal 2220 of the second sub-binding part 222.

[0077] In this embodiment, the conductive adhesive may be anisotropic conductive adhesive (ACF). The first conductive adhesive 51 and the second conductive adhesive 52 may be provided integrally to reduce material management costs, which is not limited in this application.

[0078] In this embodiment, the display device can be applied to any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc.

[0079] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some 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 application.

Claims

1. A display panel, It is characterized in that include: Display unit; A binding portion, comprising at least two first binding portions, wherein the at least two first binding portions are separately arranged, wherein the first binding portion comprises a plurality of first terminals and a plurality of second terminals, and the plurality of first terminals are arranged on both sides of the plurality of second terminals; as well as a fan-out portion, located between the display portion and the binding portion, the fan-out portion comprising at least two fan-out sub-portions corresponding to at least two of the first binding portions, the fan-out sub-portions comprising a plurality of fan-out traces, a first end of the plurality of fan-out traces being electrically connected to the second terminal, and a second end of the plurality of fan-out traces being connected to the display portion; Among them, the plurality of fan-out routing lines are symmetrically arranged about a first center line of the corresponding fan-out sub-portion, and the first center line is parallel to a direction from the display portion to the binding portion.

2. The display panel according to claim 1, It is characterized in that The display panel further includes: The second binding portion includes a first sub-binding portion located outside the display panel and a second sub-binding portion located in a middle area of ​​the first sub-binding portion close to the display panel, the first sub-binding portion includes a plurality of first binding terminals, and the second sub-binding portion includes a plurality of second binding terminals; The first binding terminal is electrically connected to the first terminal, and the second binding terminal is electrically connected to the first terminal.

3. The display panel according to claim 2, It is characterized in that The number of the second binding terminals in the second sub-binding portion is greater than the number of the first binding terminals in the first sub-binding portion.

4. The display panel according to claim 1, It is characterized in that A plurality of the second terminals are arranged in a direction perpendicular to the first center line, and at least two of the second terminals are arranged in a direction parallel to the first center line; Wherein, in a direction parallel to the first center line, the center lines of any of the second terminals do not overlap.

5. The display panel according to claim 1, It is characterized in that A plurality of the first terminals are arranged along a direction perpendicular to the first center line, wherein, in a first binding portion, the number of the first terminals located on both sides of the second terminal is the same.

6. The display panel according to claim 1, It is characterized in that The first binding portion further includes a plurality of third terminals arranged in a direction parallel to the first center line, and the third terminals of two adjacent first binding portions are electrically connected to each other via wirings arranged on the display panel.

7. A display device, It is characterized in that The display panel comprises a display panel as claimed in any one of claims 1 or 3 to 5, wherein the display panel comprises: The second binding portion includes a first sub-binding portion located outside the display panel and a second sub-binding portion located in a middle area of ​​the first sub-binding portion close to the display panel, the first sub-binding portion includes a plurality of first binding terminals, and the second sub-binding portion includes a plurality of second binding terminals; the first binding terminal is electrically connected to the first terminal, and the second binding terminal is electrically connected to the first terminal; the first binding portion also includes a plurality of third terminals arranged in a direction parallel to the first center line, and the third terminals of two adjacent first binding portions are electrically connected correspondingly through wiring arranged on the display panel, and the display device also includes: a driving chip corresponding to the first binding portion, the driving chip comprising a plurality of first chip terminals, a plurality of second chip terminals and a plurality of third chip terminals, wherein a first chip terminal is electrically connected to a first terminal correspondingly, a second chip terminal is electrically connected to a second terminal correspondingly, and a third chip terminal is electrically connected to a third terminal correspondingly; A flexible circuit board comprises a first circuit portion corresponding to the first sub-binding portion and a second circuit portion corresponding to the second sub-binding portion, the first circuit portion comprises a plurality of first circuit terminals, the second circuit portion comprises a plurality of second circuit terminals, a first circuit terminal is electrically connected to a first binding terminal, and a second circuit terminal is electrically connected to a second binding terminal; wherein, in the top view direction of the display device, the first chip terminal overlaps with the first terminal, the second chip terminal overlaps with the second terminal, and the third chip terminal overlaps with the third terminal; the first circuit terminal overlaps with the first binding terminal, and the second circuit terminal overlaps with the second binding terminal.

8. The display device according to claim 7, It is characterized in that The driving chip further includes a plurality of fourth chip terminals, which are arranged in a direction perpendicular to a first midline of the display panel and are disposed on a side of the second terminal close to a display portion of the display panel.

9. The display device according to claim 7, It is characterized in that In a direction perpendicular to a first midline of the display panel, the outer dimensions of the flexible circuit board are smaller than or equal to the outer dimensions of the display panel, and the first circuit portion and the second circuit portion are integrally provided.

10. The display device according to claim 7, It is characterized in that In the cross-sectional view direction of the display device, a first conductive adhesive is arranged between the driving chip and the display panel, and a second conductive adhesive is arranged between the flexible circuit board and the display panel. The driving chip is electrically connected to the display panel through the first conductive adhesive, and the flexible circuit board is electrically connected to the display panel through the second conductive adhesive.

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