Display device

Abstract

This invention provides a display device, relating to the field of display technology, for improving the overall performance of a product with a narrow bezel design. The display device includes: a display panel, comprising a display area and at least a non-display area surrounding the display area; the non-display area includes a first non-display area located on one side of the display area in a first direction and extending along a second direction, the first direction intersecting the second direction; the first non-display area includes a first region located on the backlight side of the display panel; the first region includes a first pin; the display panel further includes a shift circuit located in the first non-display area, at least a portion of the first pin being electrically connected to the shift circuit; and a first flexible circuit board located on the backlight side of the display panel, including a first pad connected to the first pin.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a display device. Background Technology

[0002] As users increasingly demand higher screen-to-body ratios for display products, narrow bezels have become the mainstream design trend and core development direction for various display products. Against this backdrop, how to improve the overall performance of products while meeting the aesthetic requirements of narrow bezels has become a pressing issue. Summary of the Invention

[0003] This invention provides a display device for improving the overall performance of a product with a narrow bezel design.

[0004] This invention provides a display device, comprising: a display panel including a display area and a non-display area at least partially surrounding the display area, the non-display area including a first non-display area located on one side of the display area in a first direction and extending along a second direction, the first direction intersecting the second direction, the first non-display area including a first region located on the backlight side of the display panel, the first region including a first pin; the display panel further including a shift circuit located in the first non-display area, at least a portion of the first pin being electrically connected to the shift circuit; and a first flexible circuit board located on the backlight side of the display panel, including a first pad connected to the first pin.

[0005] In this embodiment of the invention, the first non-display area of ​​the display panel can be understood as the non-display areas on the left and right sides. This embodiment proposes a technical solution to bend the non-display areas on the left and right sides of the display panel to effectively narrow the front bezels on the left and right sides of the display panel. After the display panel is bent, the first area in the first non-display area is located on the backlight side of the display panel. This embodiment also proposes to configure a first pin in the first area and make at least a portion of the first pin electrically connected to the shift circuit. Then, by configuring a first flexible circuit board that is bonded to the first pin, the required driving signal can be transmitted to the shift circuit from the non-display areas on the left and right sides using the first flexible circuit board. In this way, the signal transmission distance is shorter, which can effectively reduce the line load and signal voltage drop, reduce signal attenuation and delay, and thus significantly improve the synchronization and stability of the driving signal, thereby improving the display effect of the display device. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0007] Figure 1 A schematic diagram of a display device provided in an embodiment of the present invention; Figure 2 A schematic diagram of a display panel in an unbent state according to an embodiment of the present invention; Figure 3 A schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention; Figure 4 This is a schematic diagram illustrating a connection between a display panel and a first flexible circuit board provided in an embodiment of the present invention. Figure 5 This is a partial schematic diagram of a display panel provided in an embodiment of the present invention; Figure 6 Another schematic diagram of the display device provided in an embodiment of the present invention when the display panel is in an unbent state; Figure 7 Another schematic diagram of the display device provided in the embodiment of the present invention when the display panel is in an unbent state; Figure 8 This is a schematic diagram illustrating a connection between a display panel and a second flexible circuit board provided in an embodiment of the present invention. Figure 9 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 10 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 11 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 12 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 13 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 14 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 15Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 16 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 17 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 18 Another schematic diagram of a display device with the display panel in an unbent state, provided in an embodiment of the present invention; Figure 19 A schematic diagram of a display panel in an unbent state according to an embodiment of the present invention; Figure 20 A schematic diagram of a display panel in an unbent state according to an embodiment of the present invention; Figure 21 A schematic diagram of a first flexible circuit board provided in an embodiment of the present invention; Figure 22 This is a schematic diagram of the arrangement of the first pin provided in an embodiment of the present invention; Figure 23 A schematic diagram showing another arrangement of the first pins provided in an embodiment of the present invention; Figure 24 A schematic diagram of another arrangement of the first pin provided in an embodiment of the present invention; Figure 25 This is a schematic diagram of the alignment of the first pin and the first pad provided in an embodiment of the present invention; Figure 26 Another alignment diagram of the first pin and the first pad provided for an embodiment of the present invention; Figure 27 Another alignment diagram of the first pin and the first pad provided for an embodiment of the present invention; Figure 28 This is yet another alignment diagram of the first pin and the first pad provided in an embodiment of the present invention. Figure 29 This is another schematic diagram of a display device provided in an embodiment of the present invention. Detailed Implementation

[0008] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0009] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0010] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0011] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0012] This invention provides a display device that can be of various types, such as OLED (Organic Light Emitting Diode) and LED (Light Emitting Diode).

[0013] Figure 1 This is a schematic diagram of a display device provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of a display panel in an unbent state, as provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figure 4 This is a schematic diagram illustrating a connection between a display panel and a first flexible circuit board provided in an embodiment of the present invention, as shown below. Figures 1-4 As shown, the display device includes a display panel 1 and a first flexible circuit board 2.

[0014] The display panel 1 includes a display area 3 and a non-display area 4 that at least partially surrounds the display area 3. The non-display area 4 includes a first non-display area 5, which is located on one side of the display area 3 in a first direction x and extends along a second direction y, where the first direction x intersects the second direction y. The first non-display area 5 includes a first region 6, which is located on the backlight side of the display panel 1, and the first region 6 includes a first pin 7.

[0015] It should be noted that, unless otherwise specified, the first region 6 located on the backlight side of the display panel 1 in this embodiment of the invention means that the first region 6 is located on the backlight side of the display panel 1 after the display panel 1 is bent. For example, in a more specific example structure, the first non-display area 5 further includes a first bending area 8 and a first front bezel area 9, wherein the first bending area 8 is located between the first region 6 and the first front bezel area 9, and the first front bezel area 9 is located between the first region 6 and the display area 3. See also Figure 2When the display panel is in an unbent state, the first region 6, the first bending region 8, and the first front bezel region 9 are arranged along the first direction x, with the first region 6 located on the side of the first bending region 8 away from the display region 3. During the bending process of the display panel, the first bending region 8 bends, thereby causing the first region 6 to be placed on the backlight side of the display panel 1.

[0016] The display panel 1 also includes a shift circuit 10, which is located in the first non-display area 5, and at least part of the first pin 7 is electrically connected to the shift circuit 10 (not shown in the figure).

[0017] The first flexible circuit board 2 includes a first pad 11, which is connected to a first pin 7. The first flexible circuit board 2 is located on the backlight side of the display panel 1. For example, the first pad 11 and the first pin 7 can be thermally bonded together using an ACF (Anisotropic Conductive Film) process.

[0018] In this embodiment of the invention, the first non-display area 5 of the display panel 1 can be understood as the non-display areas on the left and right sides. This embodiment proposes a technical solution to bend the non-display areas on the left and right sides of the display panel to effectively narrow the front bezels on the left and right sides of the display panel. After the display panel 1 is bent, the first area 6 in the first non-display area 5 is located on the backlight side of the display panel 1. This embodiment also proposes that a first pin 7 is arranged in the first area 6, and at least a portion of the first pin 7 is electrically connected to the shift circuit 10. Then, by configuring a first flexible circuit board 2 that is bonded to the first pin 7, the required driving signal can be transmitted to the shift circuit 10 from the non-display areas on the left and right sides using the first flexible circuit board 2. In this way, the signal transmission distance is shorter, which can effectively reduce the line load and signal voltage drop, reduce signal attenuation and delay, and thus significantly improve the synchronization and stability of the driving signal, effectively improving the display effect of the display device.

[0019] It should be noted that the first non-display area 5 is usually also equipped with a drive signal line, which is electrically connected to the shift circuit 10 and is used to transmit various drive signals to the shift circuit 10, such as clock signals, low-level signals, high-level signals, frame start signals, etc. Figure 5 This is a partial schematic diagram of a display panel provided in an embodiment of the present invention. In this embodiment, as shown... Figure 5 As shown, the first pin 7 can be electrically connected to the shift circuit 10 by being electrically connected to the drive signal line 12, thereby achieving the electrical connection between the first pin 7 and the shift circuit 10 through the drive signal line 12.

[0020] Understandably, the shift circuit 10 is used to provide the pixel circuit with the required scan signals, and the pixel circuit typically requires multiple scan signals. For example, the pixel circuit needs to perform a reset operation on the gate potential of the driving transistor under the drive of the first scan signal, perform a charging and threshold compensation operation on the driving transistor under the drive of the second scan signal, and perform an operation to write the driving current generated by the driving transistor into the light-emitting element under the drive of the light-emitting control scan signal.

[0021] Therefore, the shift circuit 10 needs to be configured with different shift modules for different scanning signals. For example, it may be configured with a first shift module for outputting the first or second scanning signal and a second shift module for outputting the light emission control scanning signal. The driving signals required for different shift modules to operate may be different. Therefore, the driving signal line 12 may include multiple signal line groups. Each signal line group includes a clock signal line, a low-level signal line, a high-level signal line, a frame start signal line, etc., corresponding to a shift module. Correspondingly, the display panel is also configured with a first pin 7 for transmitting multiple sets of driving signals.

[0022] It needs to be explained that, Figure 5 This is just one possible connection diagram between pin 7 and drive signal line 12. Figure 5 The extension of the connection line between the first pin 7 and the drive signal line 12, the number of first pins 7, and the number of drive signal lines 12 shown are all schematic illustrations.

[0023] In some implementations, see again Figure 1 and Figure 2 At least a portion of the shift circuit 10 is located in the first region 6.

[0024] As mentioned earlier, after the display panel 1 is bent, the first region 6 is located on the backlight side of the display panel 1. Therefore, when at least a portion of the shift circuit 10 is located in the first region 6, it means that at least a portion of the shift circuit 10 is also located on the backlight side of the display panel 1. This can reduce or avoid the shift circuit 10 occupying the front bezel space, which helps to further narrow the left and right front bezels. Moreover, with this arrangement, the first pin 7 is closer to the shift circuit 10, and the corresponding drive signal lines of the shift circuit 10 will also be closer, resulting in a shorter signal transmission distance and a smaller voltage drop.

[0025] In some implementations... Figure 6 This is another schematic diagram of the display device provided in an embodiment of the present invention when the display panel is in an unbent state. Figure 7 This is another schematic diagram of the display device provided in the embodiment of the present invention when the display panel is in an unbent state, as shown below. Figure 6 and Figure 7As shown, the first region 6 includes a first side 13 and a second side 14 that are opposite each other in the second direction y. The first region 6 includes a first sub-region 15 and a second sub-region 16, which are arranged adjacent to each other in the second direction y. The first sub-region 15 extends to the first side 13, and the second sub-region 16 extends to the second side 14.

[0026] The first pin 7 is located in the first sub-region 15, and the second sub-region 16 does not include the first pin 7.

[0027] In this structure, the first pin 7 adopts a partitioned single-segment layout. The first pin 7 is concentrated only on the upper or lower side of the first region 6, which can reduce the total length spanned by the bonding position of the first flexible circuit board 2 and the display panel in the second direction y (hereinafter referred to as longitudinal direction). On the one hand, it can reduce the longitudinal dimension of the first flexible circuit board 2, save the amount of substrate and copper foil used in the first flexible circuit board 2, and reduce costs. On the other hand, it can also limit the cumulative effect of the alignment error when bonding the first flexible circuit board 2 and the display panel 1 to a small local area on the upper or lower side, avoid the alignment error from accumulating and amplifying to a large extent in the longitudinal direction, and thus prevent the display panel 1 from bending and twisting due to uneven stress in the subsequent bending and shaping process. It also reduces the display defects such as bright lines caused by the deformation of the metal traces in the display panel 1 and the changes in its line resistance and coupling, effectively improving display uniformity and product reliability.

[0028] In some implementations... Figure 8 This is a schematic diagram illustrating a connection between a display panel and a second flexible circuit board provided in an embodiment of the present invention. Figures 1-3 , Figure 8 The non-display area 4 also includes a second non-display area 17 and a corner non-display area 18.

[0029] The second non-display area 17 is located on the second direction y side of the display area 3 and extends along the first direction x. The second non-display area 17 includes a first sub-non-display area 19, the first sub-non-display area 19 includes a second region 20, the second region 20 is located on the backlight side of the display panel 1, and the second region 20 includes a second pin 21.

[0030] It should be noted that, unless otherwise specified, the second region 20 located on the backlight side of the display panel 1 in this embodiment of the invention means that the second region 20 is located on the backlight side of the display panel 1 after the display panel 1 is bent. For example, in a more specific example structure, the first sub-non-display area 19 further includes a second bent area 22 and a second front bezel area 23, wherein the second bent area 22 is located between the second region 20 and the second front bezel area 23, and the second front bezel area 23 is located between the second bent area 22 and the display area 1. See also Figure 2When the display panel is in an unbent state, the second region 20, the second bending region 22, and the second front bezel region 23 are arranged along the second direction y, and the second region 20 is located on the side of the second bending region 22 away from the display region 3. When the display panel is bent, the second bending region 22 bends, thereby causing the second region 20 to be placed on the backlight side of the display panel 1.

[0031] The corner non-display area 18 is connected between the first non-display area 5 and the second non-display area 17. The corner non-display area 18 is the non-display area at the four corners of the display panel 1. At least part of the edge of the corner non-display area 18 can be a curved edge. This type of corner non-display area 18 can also be called an R-corner area. It should be noted that the corner non-display area 18 is the front bezel of the display panel 1. The corner non-display area 18 is connected between the first non-display area 5 and the second non-display area 17. Specifically, the corner non-display area 18 is connected between the front bezel area in the first non-display area 5 and the front bezel area in the second non-display area 17. For example, at least part of the corner non-display area 18 is connected between the first front bezel area 9 in the first non-display area 5 and the second front bezel area 23 in the first sub-non-display area 19.

[0032] The display device also includes a second flexible circuit board 24, which includes a second pad 25 connected to a second pin 21. The second flexible circuit board 24 is located on the backlight side of the display panel 1. The second pad 25 and the second pin 21 can be thermally bonded together using an ACF process.

[0033] The first flexible circuit board 2 and the second flexible circuit board 24 are connected, for example, through a connector. See, for an example... Figure 1 and Figure 3 A connector 70 is connected to the first flexible circuit board 2, and the connector 70 is inserted into the second flexible circuit board 24.

[0034] Combination Figure 6 The distance between the first side 13 and the first sub-non-display area 19 is less than the distance between the second side 14 and the first sub-non-display area 19. For example, the first sub-non-display area 19 corresponds to the lower border, the first side 13 is the lower edge of the first region 6, and the first pins 7 are only concentrated on the lower side of the first region 6.

[0035] The first flexible circuit board 2 and the second flexible circuit board 24 are interlocked, enabling signal transmission between them. For example, this allows for the transmission of drive signals required by the shift circuit 10. See, for an example... Figure 1The display device also includes a display driver chip 30. The drive signals required by the shift circuit 10 are provided by the display driver chip 30. The drive signals output by the display driver chip 30 are transmitted to the second flexible circuit board 24 and further to the first flexible circuit board 2. Then, the drive signals are transmitted from the left and right bezel positions to the shift circuit 10 through the first flexible circuit board 2, thereby significantly reducing the in-plane signal transmission distance and signal voltage drop. At the same time, the display driver chip 30 can also transmit the drive signal to the shift circuit 10 from the bottom bezel. For example, when the display driver chip 30 is directly bonded to the second area 20 of the display panel 1, the display driver chip 30 can transmit the drive signal to the shift circuit 10 through the in-plane metal traces led out from the bonding pins. When the display driver chip 30 is bonded to the second flexible circuit board 24, the display driver chip 30 can transmit the drive signal to the second flexible circuit board 24, and then transmit the drive signal to the shift circuit 10 through the in-plane metal traces led out from the corresponding bonding pins of the second flexible circuit board 24, so as to realize multi-channel signal transmission and effectively distribute the line load.

[0036] The above structure is a three-sided bending structure. When the display panel 1 is bent, the first flexible circuit board 2 on the left and right sides and the second flexible circuit board 24 on the lower side will be placed on the backlight side of the display panel 1 as the display panel 1 is bent. Since the first flexible circuit board 2 and the second flexible circuit board 24 are respectively bound to the display panel, they are fixed in position after being placed on the backlight side of the display panel 1. When the first flexible circuit board 2 and the second flexible circuit board 24 are inserted, the connector is naturally aligned with the interface, which can improve the insertion efficiency.

[0037] In this structure, by setting the first pin 7 to be arranged in a concentrated manner on the side of the first region 6 closer to the first sub-non-display area 19, the total length spanned in the vertical direction of the bonding position between the first flexible circuit board 2 and the display panel is reduced. At the same time, the first flexible circuit board 2 does not need to increase its overall vertical length in order to be plugged into the second flexible circuit board 24, thus saving the ineffective soft area in the first flexible circuit board 2 and reducing the cost.

[0038] In some implementations... Figure 9 This is another schematic diagram of the display device provided in the embodiment of the present invention when the display panel 1 is in an unbent state, as shown below. Figure 9 As shown, the first region 6 includes a first side 13 and a second side 14 that are opposite each other in the second direction y.

[0039] The first region 6 includes a first sub-region 15 and two second sub-regions 16, the first sub-region 15 and the second sub-regions 16 are arranged along the second direction y and the first sub-region 15 is located between the two second sub-regions 16, one of the second sub-regions 16 extends to the first side 13 and the other second sub-region 16 extends to the second side 14.

[0040] The first pin 7 is located in the first sub-region 15, and the second sub-region 16 does not include the first pin 7.

[0041] In this structure, the first pin 7 also adopts a partitioned single-segment layout, similar to... Figure 6 and Figure 7 The difference is that the first pin 7 in this structure is only concentrated in the middle of the first region 6. This arrangement can also reduce the total length spanned in the vertical direction of the bonding position between the first flexible circuit board 2 and the display panel, reduce the vertical dimension of the first flexible circuit board 2, save costs, and improve the problem of bright lines caused by bending and twisting of the display panel 1 due to the accumulation and amplification of alignment errors in the vertical direction, effectively improving display uniformity and product reliability.

[0042] In some implementations, combined Figure 4 See Figure 6 , Figure 7 and Figure 9 The first flexible circuit board 2 includes a third side 26 extending along the second direction y. In the thickness direction of the display panel 1, the third side 26 overlaps with the first region 6. The first pad 11 is adjacent to the third side 26. The length of the third side 26 is d1.

[0043] See Figure 1 The maximum length of display panel 1 in the second direction y is d2.

[0044] in, .

[0045] When d1 meets this condition, it means that the total length spanned in the longitudinal direction of the bonding position between the first flexible circuit board 2 and the display panel is small. This can effectively improve the panel bending and twisting caused by the accumulation and amplification of the alignment error between the first flexible circuit board 2 and the display panel 1 in the longitudinal direction, thereby improving poor display problems such as bright lines.

[0046] In some implementations... Figure 10 This is another schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figure 10 As shown, the first region 6 includes a first sub-region 15 and a second sub-region 16 arranged alternately in the second direction y, and the number of the first sub-region 15 is at least three.

[0047] The first sub-region 15 includes the first pin 7, while the second sub-region 16 does not include the first pin 7.

[0048] In this structure, the first pin 7 adopts a partitioned arrangement of at least three segments. The first pin 7 is arranged in multiple segments in the first region 6. By configuring independent alignment marks near the arrangement area of ​​each segment of the first pin 7 (that is, each first sub-region 15), the alignment of each segment of the first pin 7 can be individually calibrated, thereby improving the overall alignment accuracy between the first flexible circuit board 2 and the display panel 1.

[0049] It should be noted that the number of first pins 7 in different first sub-regions 15 can be the same or different. The first pins 7 in different first sub-regions 15 can be used to transmit the same signal or different signals. When the first pins 7 in different first sub-regions 15 transmit the same signal, the same driving signal can be transmitted to the shift circuit 10 simultaneously at least on the upper, middle and lower sides of the first region 6, which helps to further reduce signal load and voltage drop.

[0050] In some implementations... Figure 11 This is another schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figure 11 As shown, the first region 6 includes a first side 13 and a second side 14 that are opposite each other in the second direction y.

[0051] The first region 6 includes two first sub-regions 15 and one second sub-region 16. The first sub-regions 15 and the second sub-region 16 are arranged along the second direction y and the second sub-region 16 is located between the two first sub-regions 15. One of the first sub-regions 15 extends to the first side 13 and the other second sub-region 16 extends to the second side 14.

[0052] The first sub-region 15 includes the first pin 7, while the second sub-region 16 does not include the first pin 7.

[0053] In this structure, the first pin 7 adopts a partitioned two-segment layout, with some first pins 7 concentrated on the upper side of the first region 6 and others concentrated on the lower side of the first region 6. The number of first pins 7 in the two first sub-regions 15 can be the same or different, and the first pins 7 in the two first sub-regions 15 can be used to transmit the same signal or different signals. When the first pins 7 in the two first sub-regions 15 transmit the same signal, the same driving signal can be transmitted to the shift circuit 10 simultaneously, at least on the upper and lower sides of the first region 6, which helps to further reduce signal load and voltage drop.

[0054] In some implementations... Figure 12 This is another schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figure 13 This is another schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figure 12 and Figure 13 As shown, the portion of the first flexible circuit board 2 that overlaps with the first region 6 includes a bonding portion 27 and a notch 28. The bonding portion 27 and the notch 28 are arranged along the second direction y. The bonding portion 27 includes a first pad 11.

[0055] A notch 28 is provided in the part of the first flexible circuit board 2 that overlaps with the first region 6. This can eliminate the adverse effect of local deformation of the invalid soft area on the alignment between the first flexible circuit board 2 and the display panel 1, and help to further improve the alignment accuracy between the two.

[0056] In one example, the first region 6 includes a first sub-region 15 and a second sub-region 16 arranged in the second direction y, with the first pin 7 located in the first sub-region 15. In the thickness direction of the display panel 1, the bonding portion 27 may overlap with the first sub-region 15 so that the position of the first pad 11 corresponds to the position of the first pin 7, while the notch 28 may overlap with the second sub-region 16. The same second sub-region 16 may overlap with only one notch 28 with a longer longitudinal length, or the same second sub-region 16 may overlap with multiple notches 28 arranged along the second direction y.

[0057] In some implementations, see Figure 2 The non-display area 4 also includes a second non-display area 17 and a corner non-display area 18. The second non-display area 17 is located on the second direction y side of the display area 3 and extends along the first direction x. The corner non-display area 18 connects the first non-display area 5 and the second non-display area 17. The second non-display area 17 includes a first sub-non-display area 19, which includes a second region 20 located on the backlight side of the display panel 1. The second non-display area 17 and the corner non-display area 18 have been specifically described in the foregoing embodiments and will not be repeated here.

[0058] Figure 14 This is another schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figure 15 This is another schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figure 16 This is another schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figures 14-16 As shown, or, Figure 17 This is another schematic diagram of a display device with the display panel in an unbent state, as provided in an embodiment of the present invention. Figure 17 As shown, the second region 20 includes a third pin 29, at least a portion of which is electrically connected to the first pin 7.

[0059] The display device also includes a display driver chip 30, which is electrically connected to the third pin 29 and located on the backlight side of the display panel 1. The display driver chip 30 is used to provide the drive signal required by the shift circuit 10.

[0060] In some implementations, see Figures 14-16 The display driver chip 30 is bonded to the display panel 1. At this time, the third pin 29 can be understood as the pin in the display panel 1 used to bond with the display driver chip 30. The electrical connection between the display driver chip 30 and the third pin 29 can be understood as the direct bonding connection between the display driver chip 30 and the third pin 29.

[0061] In this structure, the drive signal provided by the display driver chip 30 is transmitted to the first flexible circuit board 2 via the second flexible circuit board 24, and then to the shift circuit 10 via the first pin 7. Simultaneously, it is also transmitted to the first pin 7 via the in-plane metal trace led out from the third pin 29, and then to the shift circuit 10 via the first pin 7. This allows drive signals to be written to the shift circuit simultaneously from both the bottom and left / right bezel positions, increasing the number of signal transmission channels and effectively reducing line load and signal voltage drop.

[0062] Alternatively, in some implementations, see Figure 17 The display driver chip 30 is bound to the second flexible circuit board 24. At this time, the third pin 29 can be understood as the pin in the display panel 1 that is bound to the second flexible circuit board 24. The electrical connection between the display driver chip 30 and the third pin 29 can be understood as the electrical connection between the display driver chip 30 and the second flexible circuit board 24, and then the second flexible circuit board 24 and the third pin 29 are indirectly electrically connected.

[0063] In this structure, the drive signal provided by the display driver chip 30 is transmitted to the second flexible circuit board 24. On one hand, it is transmitted to the first flexible circuit board 2 via a connector, and then to the shift circuit 10 via the first pin 7. On the other hand, it is simultaneously transmitted to the first pin 7 via an in-plane metal trace led out from the third pin 29, and then to the shift circuit 10 via the first pin 7. This allows drive signals to be written to the shift circuit simultaneously from both the bottom and left / right bezel positions, increasing the number of signal transmission channels and effectively reducing line load and signal voltage drop.

[0064] In some implementations, see again Figures 14-17At least a portion of the first pin 7 and the third pin 29 are electrically connected via a first connecting line 31. The extension path of the first connecting line 31 passes through the first sub-non-display area 19, the corner non-display area 18 connected to the first sub-non-display area 19, and the first non-display area 5. Based on this wiring method, the extension distance of the first connecting line 31 is shorter, the wiring load is smaller, and the voltage drop of the signal during transmission is smaller.

[0065] In some implementations, combined Figure 11 and Figure 14 , Figure 6 and Figure 15 , Figure 10 and Figure 16 At least a portion of the first pin 7 and the third pin 29 are electrically connected via a first connecting line 31, the first connecting line 31 including a first segment 32, the first segment 32 being located in the first region 6 and extending along the first direction x.

[0066] The first region 6 includes a first sub-region 15 and a second sub-region 16 arranged along the second direction y. The first sub-region 15 includes a first pin 7, and the second sub-region 16 does not include the first pin 7. The first pin 7 in the same first sub-region 15 constitutes a pin unit 33, wherein the pin unit 33 overlaps with its corresponding first line segment 32 in the first direction x.

[0067] The pin unit 33 overlaps with its corresponding first line segment 32 in the first direction x, which means that the first line segment 32 can be led out from the adjacent position on the lateral side of the pin unit 33. This wiring method can shorten the overall extension distance of the first connecting line 31 and reduce the wiring load.

[0068] In some implementations... Figure 18 This is another schematic diagram of the display device provided in the embodiment of the present invention when the display panel 1 is in an unbent state, as shown below. Figure 18 As shown, at least a portion of the first pin 7 and the third pin 29 are electrically connected via a first connecting line 31, which includes a first segment 32 located in the first region 6 and extending along the first direction x.

[0069] Among them, the first pin 7 and the first line segment 32 overlap in the second direction y.

[0070] The first pin 7 and the first line segment 32 overlap vertically, which can reduce the lateral width required by the first pin 7 and the first line segment 32 as a whole. This allows for the narrowing of the first region 6, for example, by reducing the non-display areas on the left and right sides by about 0.8mm. Moreover, after the first region 6 is narrowed, the lateral space occupied by the first region 6 on the backlight side of the display panel 1 is reduced. The position of the first flexible circuit board 2 can be moved towards the side closer to the first bending area 8, avoiding the battery, motherboard and other structures inside the device, thus achieving better overall device avoidance.

[0071] In some implementations, see again Figure 18 The first region 6 includes a first pin unit 34 and a second pin unit 35 arranged along the second direction y, and the first pin unit 34 and the second pin unit 35 each include a plurality of first pins 7.

[0072] The first pin unit 34 and the second pin unit 35 are located between the first line segment 32 corresponding to the first pin unit 34 and the first line segment 32 corresponding to the second pin unit 35, and the first pin unit 34 and its corresponding first line segment 32 are adjacent to each other, and the second pin unit 35 and its corresponding first line segment 32 are adjacent to each other.

[0073] This configuration serves two purposes. First, as mentioned earlier, it reduces the overall lateral width required by the first pin 7 and the first line segment 32, thereby narrowing the first region 6. This allows the position of the first flexible circuit board 2 to be moved closer to the first bending area 8, achieving overall clearance. Second, the first pin unit 34 and the second pin unit 35 are located between the two parts of the first line segment 32, and their proximity reduces the overall longitudinal bonding length of the first flexible circuit board 2. This not only improves the panel bending and twisting caused by the accumulation and amplification of alignment errors between the first flexible circuit board 2 and the display panel 1 in the longitudinal direction, but also reduces the overall longitudinal size of the first flexible circuit board 2, saving costs.

[0074] In some implementations, see again Figure 18 The width of the first non-display area 5 in the first direction x is d3, 2.0mm≤d3≤2.2mm.

[0075] When d3 is within this range, the overall width of the first non-display area 5 is relatively small, for example, it can be seen through Figure 18 The intention is to make the first pin 7 and the first line segment 32 overlap in the second direction y to compress the width of the first region 6, thereby improving the overall machine avoidance problem.

[0076] In some implementations... Figure 19 This is a schematic diagram of a display panel in an unbent state according to an embodiment of the present invention. Figure 20 This is a schematic diagram of a display panel in an unbent state according to an embodiment of the present invention, as shown below. Figure 19 and Figure 20 As shown, the non-display area 4 also includes a second non-display area 17 and a corner non-display area 18. The second non-display area 17 is located on the second direction y side of the display area 3 and extends along the first direction x. The corner non-display area 18 is connected between the first non-display area 5 and the second non-display area 17.

[0077] Display area 3 includes a plurality of circuit rows 36 arranged along the second direction y, and circuit rows 36 include a plurality of pixel circuits 37 arranged along the first direction x. The circuit rows 36 include a first circuit row 38 and a second circuit row 39. The first circuit row 38 is located between the second circuit row 39 and the edge of the display panel 1. Furthermore, along the first direction x, at least a portion of the first circuit row 38 overlaps with the corner non-display area 18, and at least a portion of the second circuit row 39 overlaps with the first non-display area 5.

[0078] Display area 3 also includes scan line 48, which is electrically connected to circuit row 36.

[0079] The shift circuit 10 includes a plurality of shift units 40. Each shift unit 40 includes a scan line 48 corresponding to the first circuit row 38 and electrically connected to the first shift unit 41, and a scan line 48 corresponding to the second circuit row 39 and electrically connected to the second shift unit 42.

[0080] The first shifting unit 41 is electrically connected to the scan line 48 corresponding to the first circuit row 38 via a second connecting line 43. The second connecting line 43 includes a first trace 44 and a second trace 45. The first trace 44 is located in the first non-display area 5, and the second trace 45 is located in the display area 3. The second trace 45 includes a first portion 46 extending along a first direction x and a second portion 47 extending along a second direction y. The first portion 46 is connected between the first trace 44 and the second portion 47, and the second portion 47 is located between the first portion 46 and the scan line 48. The first portion 46 and the second portion 47 can be located on different layers and are connected by vias.

[0081] In this structure, at least a portion of the first circuit row 38 overlaps with the corner non-display area 18 in the first direction x. Therefore, at least a portion of the first shift unit 41 and its corresponding scan line 48 will have a large misalignment in the lateral direction. In this embodiment of the invention, after the first shift unit 41 is led out through the first trace 44, it is not led from the corner non-display area 18 to the first circuit row 38 to be electrically connected to the corresponding scan line 48. Instead, it is led to the first circuit row 38 through the second trace 45 located in the display area 3. This avoids the lead corresponding to the first shift unit 41 occupying space in the corner non-display area 18 and reduces the border width of the corner non-display area 18.

[0082] It needs to be explained that, Figure 20The connection between the shift unit 40 and the scan line 48 shown is merely illustrative. It is understood that for the pixel circuit 37 to function properly, it receives various scan signals, and correspondingly, the scan lines 48 connected to the circuit row 36 also vary. In this embodiment, a single shift unit 40 may be electrically connected to only one scan line 48, and the various scan signals required by the circuit row 36 may be provided jointly by multiple sets of shift circuits 10. Alternatively, a single shift unit 40 may be electrically connected to at least two scan lines 48; for example, the shift unit 40 may include at least two different shift modules, each electrically connected to a different scan line 48. Furthermore, the shift unit 40 may provide all the required scan signals to the circuit row 36, or it may provide only a portion of the required scan signals, with all the required scan signals for the circuit row 36 being provided jointly by shift units 40 in at least two different sets of shift circuits 10.

[0083] In some implementations, see again Figure 3 The first flexible circuit board 2 includes a third side 26 and a fourth side 49 opposite each other in the first direction x. In the thickness direction of the display panel 1, the third side 26 overlaps with the first region 6, and the first pad 11 is adjacent to the third side 26.

[0084] The maximum distance between the third side 26 and the fourth side 49 is d4, where 4mm ≤ d4 ≤ 6mm.

[0085] The maximum distance between the third side 26 and the fourth side 49 can also be understood as the maximum width of the main body of the first flexible circuit board 2 in the first direction x, or it can be directly understood as the maximum width of the first flexible circuit board 2 in the first direction x.

[0086] When d4 is between 4mm and 6mm, the first flexible circuit board 2 occupies a smaller space on the back side of the display panel 1, allowing for overall device clearance, such as clearance for the battery. In other words, it frees up more space for other structures, such as the battery, to accommodate larger and higher-capacity batteries, thereby improving overall device performance.

[0087] In traditional flexible circuit boards, the number of copper foil layers is 6, and the width of the flexible circuit board is about 10mm. In this embodiment of the invention, the number of copper foil layers in the first flexible circuit board 2 can be set to at least 8 layers, for example, 8 layers, so as to reduce the number of lines in the same layer, reduce the width occupied by the horizontal lines of the metal traces, and thus reduce the horizontal width of the first flexible circuit board 2.

[0088] In some implementations... Figure 21 A schematic diagram of a first flexible circuit board provided in an embodiment of the present invention, as shown below. Figure 21As shown, the first flexible circuit board 2 includes at least one copper leakage area 50, and the total area of ​​the copper leakage area 50 is greater than or equal to 16 mm². 2 .

[0089] The surface of the first flexible circuit board 2 has an insulating protective layer. The exposed copper area 50 refers to the area where the insulating protective layer is hollowed out to expose the copper foil underneath. The exposed copper foil in the exposed copper area 50 can be electrically connected to the ground terminal, which can play an electrostatic shielding role, isolate the external electrostatic field, and protect the inner layer traces.

[0090] In this embodiment of the invention, the total area of ​​the copper leakage region 50 is greater than or equal to 16 mm². 2 For example, the first flexible circuit board 2 includes multiple copper-exposed areas 50, the sum of the areas of these multiple copper-exposed areas 50 need to be at least 16 mm². 2 This configuration ensures that the first flexible circuit board 2 has a sufficient area of ​​exposed copper, preventing excessive static current density from causing localized electrostatic damage and improving the antistatic effect of the first flexible circuit board 2.

[0091] In some embodiments, the copper drain area 50 and the first pad 11 are located on opposite sides of the first flexible circuit board 2 in the first direction x. The copper drain area 50 is far away from the first pad 11 and far away from the effective traces, thereby avoiding the exposure of the effective metal traces due to process errors when the insulating protective layer of the copper drain area 50 is removed.

[0092] In some implementations... Figure 22 This is a schematic diagram of one arrangement of the first pins provided in an embodiment of the present invention, such as... Figure 22 As shown, multiple first pins 7 are arranged along the second direction y, and the size of the first pins 7 in the first direction x is greater than the size of the first pins 7 in the second direction y.

[0093] In this configuration, the extension direction of the long side of the first pin 7 is the first direction x, and the first pin 7 is arranged in a vertical form. This can reduce the length of the arrangement of multiple first pins 7 in the vertical direction, that is, reduce the binding length of the first flexible circuit board 2 and the display panel 1 in the vertical direction. This can improve the panel bending and twisting caused by the accumulation and amplification of the alignment error between the two in the vertical direction, and effectively improve the poor display problems such as bright lines.

[0094] or, Figure 23 This is a schematic diagram of another arrangement of the first pins provided in an embodiment of the present invention, as shown below. Figure 23 As shown, at least a portion of the first pin 7 is arranged along the second direction y, and the size of the first pin 7 in the second direction y is greater than the size of the first pin 7 in the first direction x.

[0095] In this configuration, the extension direction of the long side of the first pin 7 is the second direction y. This reduces the lateral space required by the first pin 7 in the first direction x, which helps to compress the lateral width of the first region 6. Thus, when the first flexible circuit board 2 is bonded to the first region 6 and is located on the backlight side of the display panel 1 during the bending process of the display panel 1, the first flexible circuit board 2 can make overall clearance on the back side, such as freeing up more space for the battery.

[0096] or, Figure 24 This is a schematic diagram of another arrangement of the first pin provided in an embodiment of the present invention, as shown below. Figure 24 The plurality of first pins 7 are arranged along the second direction y. The first pins 7 include two fifth sides 51 opposite each other in the second direction y. The extension direction of the fifth sides 51 has an angle greater than 0° with the first direction x.

[0097] In this configuration, the extension direction of the long side of the first pin 7 is an oblique direction that intersects the first direction x and the second direction y, and the first pin 7 is arranged in an oblique shape.

[0098] To achieve panel bending, the substrate of the display panel 1 includes a flexible material. During the panel manufacturing process, this flexible substrate may shrink or expand along the first direction x and / or the second direction y, causing the actual position of the first pin 7 to be further out or further in than a preset position. When the first pin 7 is arranged at an angle, even if the actual position of the first pin 7 shifts in the first direction x and / or the second direction y due to the shrinkage or expansion of the flexible substrate, a larger contact area can still be achieved between the first pad 11 and the shifted first pin 7 by moving the first flexible circuit board 2 a certain distance in the first direction x and / or the second direction y. For example, Figure 25 This is a schematic diagram of the alignment of the first pin and the first pad provided in an embodiment of the present invention, such as... Figure 25 As shown, the first flexible circuit board 2 can be moved x1 in the first direction x towards the display area 3 or x1 in the first direction x away from the display area 3, so that the first pad 11 is aligned with the first pin 7 after the position is offset. After alignment, the contact area can be increased, and the problem of poor bonding misalignment can be improved.

[0099] In some implementations, combined Figure 22 The length of the first pin 7 is greater than or equal to 0.5 mm, and the width is greater than or equal to 0.09 mm; and / or, the area of ​​the first pin 7 is greater than or equal to 0.012 mm². 2 .

[0100] When the length, width, and area of ​​the first pin 7 meet the above conditions, on the one hand, it can ensure that there is sufficient contact area between the first pin 7 and the first pad 11, thereby improving the reliability and stability of their connection. On the other hand, it can also provide sufficient tolerance space for the alignment of the first pin 7 and the first pad 11, avoiding the connection failure caused by slight alignment deviation.

[0101] In some implementations... Figure 26 This is another alignment diagram of the first pin and the first pad provided in an embodiment of the present invention. Figure 27 This is another alignment diagram of the first pin and the first pad provided in an embodiment of the present invention. Figure 28 This is another alignment diagram of the first pin and the first pad provided in an embodiment of the present invention, as shown below. Figures 26-28 As shown, the width k1 of the first pad 11 is greater than or equal to 30μm, so that the first pad 11 has a sufficient width to ensure sufficient contact area between it and the first pin 7, thereby improving the reliability of their connection.

[0102] And / or, in the overlapping area of ​​the first pad 11 and the first pin 7, the two opposing sixth sides 52 of the first pad 11 overlap with the first pin 7, and the distance k2 between the sixth side 52 and the adjacent side of the first pin 7 is greater than or equal to 5 μm. That is, the first pad 11 is recessed by at least 5 μm on one side relative to the first pin 7 to which it is connected, that is, the width of the first pad 11 is at least 10 μm smaller than the width of the first pin 7. This design can provide sufficient fault tolerance distance for the alignment of the first pin 7 and the first pad 11 in the first direction x, and avoid the connection failure caused by a slight alignment deviation of the first pin 7 and / or the first pad 11 in the first direction x.

[0103] And / or, the first pad 11 includes a first sub-part 53 and a second sub-part 54. The first sub-part 53 overlaps with and is connected to the first pin 7, while the second sub-part 54 does not overlap with the first pin 7. Along the arrangement direction of the first sub-part 53 and the second sub-part 54, the length k3 of the second sub-part 54 is greater than or equal to 0.2 mm. This design provides sufficient tolerance for the alignment of the first pin 7 and the first pad 11 in the second direction y, preventing the connection from failing due to slight alignment deviations of the second pin 21 and / or the second pad 25 in the first direction x.

[0104] Furthermore, the first pad 11 includes two opposing seventh sides 62, the arrangement direction of which intersects the arrangement direction of the first sub-part 53 and the second sub-part 54. In the thickness direction of the display panel, one of the seventh sides 62 may overlap with the first pin 7, for example, one of the seventh sides 62 may coincide with an edge extending in the same direction in the first pin 7.

[0105] In an embodiment of the present invention, Figure 29 Another schematic diagram of the display device provided in the embodiment of the present invention, such as... Figure 29 As shown, the display device may also include a first adhesive layer 55, a polarizer 56, a second adhesive layer 57, a cover plate 58, etc., located on the light-emitting side of the display panel 1, and may also include a support member 59, an ultra-clean foam composite layer 60, a prosthetic tape 61, etc., located on the backlight side of the display panel 1.

[0106] 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 within the scope of protection of the present invention.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions 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 device, characterized in that, include: A display panel includes a display area and a non-display area at least partially surrounding the display area. The non-display area includes a first non-display area located on one side of the display area in a first direction and extending along a second direction, the first direction intersecting the second direction. The first non-display area includes a first region located on the backlight side of the display panel, the first region including a first pin. The display panel also includes a shift circuit located in the first non-display area, at least a portion of the first pin being electrically connected to the shift circuit. A first flexible circuit board, located on the backlight side of the display panel, includes a first pad connected to the first pin.

2. The display device according to claim 1, characterized in that, At least a portion of the shift circuit is located in the first region.

3. The display device according to claim 1, characterized in that, The first region includes a first side and a second side opposite to each other in the second direction; The first region includes a first sub-region and a second sub-region, the first sub-region and the second sub-region are arranged adjacent to each other in the second direction, the first sub-region extends to the first side, and the second sub-region extends to the second side; The first pin is located in the first sub-region, and the second sub-region does not include the first pin.

4. The display device according to claim 3, characterized in that, The non-display area further includes a second non-display area and a corner non-display area. The second non-display area is located on one side of the second direction of the display area and extends along the first direction. The corner non-display area is connected between the first non-display area and the second non-display area. The second non-display area includes a first sub-non-display area, the first sub-non-display area includes a second region, the second region is located on the backlight side of the display panel, and the second region includes a second pin; The display device further includes a second flexible circuit board located on the backlight side of the display panel. The second flexible circuit board includes a second pad connected to the second pin. The first flexible circuit board is inserted into the second flexible circuit board, and the distance between the first side and the first sub-non-display area is less than the distance between the second side and the first sub-non-display area.

5. The display device according to claim 1, characterized in that, The first region includes a first side and a second side opposite to each other in the second direction; The first region includes a first sub-region and two second sub-regions, the first sub-region and the second sub-regions are arranged along the second direction and the first sub-region is located between the two second sub-regions, one of the second sub-regions extends to the first side and the other second sub-region extends to the second side; The first pin is located in the first sub-region, and the second sub-region does not include the first pin.

6. The display device according to claim 1, 3, or 5, characterized in that, The first flexible circuit board includes a third side extending along the second direction, which overlaps with the first region in the thickness direction of the display panel, and the first pad is adjacent to the third side; The length of the third side is d1, and the maximum length of the display panel in the second direction is d2. .

7. The display device according to claim 1, characterized in that, The first region includes a first sub-region and a second sub-region arranged alternately in the second direction, and the number of the first sub-regions is at least three; The first sub-region includes the first pin, while the second sub-region does not include the first pin.

8. The display device according to claim 1, characterized in that, The first region includes a first side and a second side opposite to each other in the second direction; The first region includes two first sub-regions and one second sub-region, the first sub-regions and the second sub-regions are arranged along the second direction and the second sub-region is located between the two first sub-regions, one of the first sub-regions extends to the first side and the other second sub-region extends to the second side; The first sub-region includes the first pin, while the second sub-region does not include the first pin.

9. The display device according to claim 1, characterized in that, The portion of the first flexible circuit board that overlaps with the first region includes a bonding portion and a notch, the bonding portion and the notch being arranged along the second direction, and the bonding portion including the first pad.

10. The display device according to claim 1, characterized in that, The non-display area further includes a second non-display area and a corner non-display area. The second non-display area is located on one side of the second direction of the display area and extends along the first direction. The corner non-display area is connected between the first non-display area and the second non-display area. The second non-display area includes a first sub-non-display area, the first sub-non-display area includes a second region, the second region is located on the backlight side of the display panel, the second region includes a third pin, at least a portion of the third pin is electrically connected to the first pin; The display device further includes a display driver chip, which is located on the backlight side of the display panel and is electrically connected to the third pin.

11. The display device according to claim 10, characterized in that, At least a portion of the first pin is electrically connected to the third pin via a first connection line; The extension path of the first connecting line passes through the first sub-non-display area, the corner non-display area connected to the first sub-non-display area, and the first non-display area.

12. The display device according to claim 10, characterized in that, At least a portion of the first pin is electrically connected to the third pin via a first connecting line, the first connecting line including a first segment, the first segment being located in the first region and extending along the first direction; The first region includes a first sub-region and a second sub-region arranged along the second direction, wherein the first sub-region includes the first pin and the second sub-region does not include the first pin; The first pins in the same first sub-region constitute a pin unit, wherein the pin unit overlaps with its corresponding first line segment in the first direction.

13. The display device according to claim 10, characterized in that, At least a portion of the first pin is electrically connected to the third pin via a first connecting line, the first connecting line including a first segment, the first segment being located in the first region and extending along the first direction; Wherein, the first pin and the first line segment overlap in the second direction.

14. The display device according to claim 13, characterized in that, The first region includes a first pin unit and a second pin unit arranged along the second direction, wherein the first pin unit and the second pin unit each include a plurality of the first pins; The first pin unit and the second pin unit are located between the first line segment corresponding to the first pin unit and the first line segment corresponding to the second pin unit, and the first pin unit is adjacent to its corresponding first line segment, and the second pin unit is adjacent to its corresponding first line segment.

15. The display device according to claim 1 or 13, characterized in that, The width of the first non-display area in the first direction is d3, where 2.0mm ≤ d3 ≤ 2.2mm.

16. The display device according to claim 1, characterized in that, The non-display area further includes a second non-display area and a corner non-display area. The second non-display area is located on one side of the second direction of the display area and extends along the first direction. The corner non-display area is connected between the first non-display area and the second non-display area. The display area includes a plurality of circuit rows arranged along the second direction, and the circuit rows include a plurality of pixel circuits arranged along the first direction. The circuit rows include a first circuit row and a second circuit row. The first circuit row is located between the second circuit row and the edge of the display panel. Furthermore, along the first direction, at least a portion of the first circuit row overlaps with the corner non-display area, and at least a portion of the second circuit row overlaps with the first non-display area. The display area also includes scan lines, which are electrically connected to the circuit. The shifting circuit includes multiple shifting units, each shifting unit including a first shifting unit electrically connected to the scan line corresponding to the first circuit row and a second shifting unit electrically connected to the scan line corresponding to the second circuit row; The first shifting unit is electrically connected to the scan line corresponding to the first circuit row via a second connecting line. The second connecting line includes a first trace and a second trace. The first trace is located in the first non-display area, and the second trace is located in the display area. The second trace includes a first portion extending along the first direction and a second portion extending along the second direction. The first portion is connected between the first trace and the second portion, and the second portion is located between the first portion and the scan line.

17. The display device according to claim 1, characterized in that, The first flexible circuit board includes a third side and a fourth side opposite to each other in the first direction. In the thickness direction of the display panel, the third side overlaps with the first region, and the first pad is adjacent to the third side. The maximum distance between the third side and the fourth side is d4, where 4mm ≤ d4 ≤ 6mm.

18. The display device according to claim 1, characterized in that, The first flexible circuit board includes at least one copper leakage area, the total area of ​​which is greater than or equal to 16 mm². 2 .

19. The display device according to claim 1, characterized in that, The plurality of first pins are arranged along the second direction, and the size of the first pin in the first direction is larger than the size of the first pin in the second direction; Alternatively, at least a portion of the first pins are arranged along the second direction, and the dimension of the first pins in the second direction is greater than the dimension of the first pins in the first direction; Alternatively, a plurality of the first pins are arranged along the second direction, the first pins including two opposing fifth sides in the second direction, the extension directions of the fifth sides having an angle greater than 0° with the first direction.

20. The display device according to claim 1, characterized in that, The length of the first pin is greater than or equal to 0.5 mm, and the width is greater than or equal to 0.09 mm; And / or, the area of ​​the first pin is greater than or equal to 0.012 mm². 2 .

21. The display device according to claim 1, characterized in that, The width of the first pad is greater than or equal to 30 μm; And / or, in the overlapping area of ​​the first pad and the first pin, two opposite sixth sides of the first pad overlap with the first pin, and the distance between the sixth side and the adjacent side of the first pin is greater than or equal to 5 μm. And / or, the first pad includes a first sub-part and a second sub-part, the first sub-part overlapping and connected to the first pin, the second sub-part not overlapping the first pin, and the length of the second sub-part being greater than or equal to 0.2 mm along the arrangement direction of the first sub-part and the second sub-part.

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