Display module and display device

Abstract

The invention provides a display module and a display device, and relates to the technical field of display, the display module comprises a display panel, a plurality of pixels and a plurality of touch electrodes are arranged in a display area, and a non-display area comprises a first non-display area located on one side of the display area in the first direction; the at least one flexible circuit board is electrically connected to the first non-display area, and the flexible circuit board is configured to be electrically connected with the touch electrodes and transmit a first power signal to the pixels; a first power line configured to provide a first power signal to pixels of the display area; the first power line comprises a main body part and an extension part connected with the main body part, the main body part and the extension part are located in the first non-display area, and the extension part is located on the side, away from the display area, of the main body part and extends in the first direction; the main body part is electrically connected with the pixels, and the extension part is electrically connected with the flexible circuit board. Therefore, the incoming line arrangement structure of the first power line is reasonably distributed, and the brightness uniformity of the display panel is improved.

Description

Technical Field

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

[0002] With the continuous development of science and technology, more and more display products, such as mobile phones, tablets, laptops and smart wearable devices, are widely used in people's daily life and work, bringing great convenience to people's daily life and work, and becoming an indispensable tool for people today.

[0003] At this stage, how to improve the uniformity of display brightness of display products and improve the display effect has become one of the technical problems that need to be solved urgently. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides a display module and a display device, aiming to enhance the uniformity of display brightness and improve the display effect.

[0005] In a first aspect, the present disclosure provides a display module, comprising:

[0006] The display panel comprises a display area and a non-display area located outside the display area, wherein the display area is provided with a plurality of pixels and a plurality of touch electrodes, and the non-display area comprises a first non-display area located at one side of the display area along a first direction;

[0007] At least one flexible circuit board, electrically connected to the first non-display area, the flexible circuit board being configured to be electrically connected to the touch electrodes and to transmit a first power signal to the pixels;

[0008] A first power line, the first power line is configured to provide a first power signal to pixels in the display area; the first power line includes a main body and an extension portion connected to the main body, the main body and the extension portion are both located in the first non-display area, the extension portion is located on a side of the main body away from the display area and extends along a first direction; the main body is electrically connected to the pixels, and the extension portion is electrically connected to the flexible circuit board.

[0009] In a second aspect, based on the same inventive concept, the present disclosure provides a display device, comprising the display module provided in the first aspect of the present disclosure.

[0010] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0011] The present disclosure provides a display module and a display device, wherein the display module includes a display panel, a flexible circuit board and a first power line; the flexible circuit board is electrically connected to the first non-display area, configured to be electrically connected to the touch electrode, and transmit a first power signal to the first pixel; the first power line is configured to provide the first power signal to the pixel in the display area, and the first power line includes a main body and an extension connected to the main body, the main body and the extension are both located in the first non-display area, the extension is located on a side of the main body away from the display area and extends along a first direction; the main body is electrically connected to the pixel, and the extension is electrically connected to the flexible circuit board. The present disclosure realizes the transmission of the touch signal and the first power signal through the flexible circuit board, and in the first non-display area, the space of the binding area corresponding to the flexible circuit board is reasonably utilized, which is conducive to the reasonable distribution of the incoming line arrangement structure of the first power line, thereby facilitating the reduction of the difference in the first power signal obtained by the pixels in different areas of the display area, and facilitating the improvement of the overall brightness uniformity of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 Shown is a structural schematic diagram of a display module provided by an embodiment of the present disclosure;

[0015] Figure 2 Shown is a schematic diagram of a film layer of a display panel in the present disclosure;

[0016] Figure 3 Shown is a schematic diagram of the structure of a touch electrode provided by an embodiment of the present disclosure;

[0017] Figure 4 Another structural schematic diagram of a display module provided by an embodiment of the present disclosure is shown;

[0018] Figure 5 FIG. 2 is another structural schematic diagram of a display module provided by an embodiment of the present disclosure;

[0019] Figure 6 Shown is a schematic diagram of a regional structure of a display module provided by an embodiment of the present disclosure;

[0020] Figure 7Shown is another regional structural schematic diagram of a display module provided by an embodiment of the present disclosure;

[0021] Figure 8 FIG. 1 is a schematic diagram of a pixel driving circuit provided by an embodiment of the present disclosure;

[0022] Fig. 9 Shown Figure 8 A timing diagram of a pixel driving circuit;

[0023] Fig.10 FIG. 2 is another structural schematic diagram of a display module provided by an embodiment of the present disclosure;

[0024] Fig.11 FIG. 2 is another structural schematic diagram of a display module provided by an embodiment of the present disclosure;

[0025] Fig.12 FIG. 2 is another structural schematic diagram of a display module provided by an embodiment of the present disclosure;

[0026] Fig.13 FIG. 1 is another schematic diagram of a regional structure of a display module provided by an embodiment of the present disclosure;

[0027] Fig.14 Shown is a structural schematic diagram of a first non-display area in a display module provided by an embodiment of the present disclosure;

[0028] Fig.15 Shown is a schematic structural diagram of a display device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0031] The inventors discovered during their research that for some display products, the display area is large, the current path is long, the voltage drop of the power signal line is large, and the voltage difference of the power signal obtained by pixels in different areas of the display area is large, resulting in uneven pixel brightness, which affects the display effect.

[0032] At this stage, how to improve the uniformity of display brightness of display products and improve the display effect has become one of the technical problems that need to be solved urgently.

[0033] In order to solve the above technical problems, the present disclosure provides a display module and a display device, aiming to enhance the uniformity of display brightness and improve the display effect.

[0034] Figure 1 FIG. 1 is a schematic diagram of a structure of a display module provided in an embodiment of the present disclosure. Please refer to FIG. Figure 1 The present disclosure provides a display module 100, comprising:

[0035] The display panel 01 includes a display area AA and a non-display area NA located outside the display area AA. The display area AA is provided with a plurality of pixels 10 and a plurality of touch electrodes 20. The non-display area NA includes a first non-display area NA-1 located at one side of the display area AA along a first direction F1.

[0036] At least one flexible circuit board 02 is electrically connected to the first non-display area NA- 1 . The flexible circuit board 02 is configured to be electrically connected to the touch electrodes 20 and transmit a first power signal to the pixels 10 .

[0037] The first power line 03 is configured to provide a first power signal to the pixel 10 of the display area AA; the first power line 03 includes a main body 031 and an extension portion 032 connected to the main body 031, the main body 031 and the extension portion 032 are both located in the first non-display area NA-1, the extension portion 032 is located on a side of the main body 031 away from the display area AA and extends along the first direction F1; the main body 031 is electrically connected to the pixel 10, and the extension portion 032 is electrically connected to the flexible circuit board 02.

[0038] It should be noted that Figure 1 The display panel 01 with a rectangular structure is only used as an example for explanation, and the actual shape of the display panel 01 is not limited. In some other embodiments of the present disclosure, the display panel 01 can also be embodied in any other feasible shape such as a circle, a rounded rectangle, etc. The first non-display area NA-1 of the display panel 01 can be embodied as the lower frame area of ​​the display panel 01, for example. A plurality of binding pins 04 are provided in the first non-display area NA-1. The flexible circuit board 02 provided in the present disclosure is bound to the first non-display area NA-1 of the display panel 01, and is electrically connected to the binding pins 04 of the first non-display area NA-1. The extension portion 032 of the first power line 03 is also electrically connected to the binding pins 04, so that the electrical connection between the flexible circuit board 02 and the extension portion 032 is achieved through the binding pins 04.

[0039] Optionally, the display panel provided in this embodiment may be a display panel using organic light-emitting diode display technology, that is, an OLED (Organic Light-Emitting Diode) display panel, for example, see Figure 2 ,in, Figure 2 FIG. 1 is a schematic diagram of a film layer of a display panel in the present disclosure. The pixel mentioned in the present disclosure may include Figure 2 The light emitting element 30 and the pixel driving circuit connected to the light emitting element 30. Please refer to Figure 2 The basic structure of the light-emitting element 30 of the OLED display panel includes an anode 301, a light-emitting material layer 302 and a cathode 303. When the power supply supplies an appropriate voltage, the holes generated by the anode 301 and the electrons generated by the cathode 303 will combine in the light-emitting material layer 302 to generate bright light. Compared with liquid crystal displays, OLED display panels have the characteristics of high visibility and high brightness, and are more power-saving, light in weight and thin in thickness. Of course, in some other embodiments of the present invention, the display panel may also be a display panel using inorganic light-emitting diode display technology, such as a Micro LED display panel, or a Mini LED display panel, etc., and the present disclosure is not limited thereto.

[0040] by Figure 2 Taking the display panel in the embodiment as an example, the display panel includes a substrate 00, a driving layer 40, a display layer 10 and a touch layer 60, wherein the display layer 10 includes a pixel definition layer 19, and the pixel definition layer 19 defines a plurality of pixel openings; the light-emitting material layer 302 is at least located in the pixel opening, and along the direction perpendicular to the substrate 00, the anode 301 and the cathode 303 are respectively located on both sides of the light-emitting material layer 302, and the anode 301 is located on the side of the cathode 303 facing the substrate 00. Optionally, an encapsulation layer 50 is further provided on the side of the cathode 303 away from the anode 301, and the touch electrode 20 is located on the side of the encapsulation layer 50 away from the cathode 303. Optionally, the encapsulation layer 50 includes a first inorganic layer 51, an organic layer 52 and a second organic layer 53 arranged in a stacked manner. A pixel driving circuit is provided in the driving layer 40 for providing a driving voltage to the display layer 10 to drive the display layer 10 to emit light, and the pixel driving circuit includes a plurality of transistors M0, and the specific circuit structure of the pixel driving circuit will be illustrated in the subsequent embodiments.

[0041] It should be noted that Figure 1 The touch electrodes 20 are illustrated by taking the touch electrodes 20 of the cross-shaped strip structure as an example, but the actual structure of the touch electrodes is not limited. The touch electrodes 20 are electrically connected to the touch pins 042 through the touch traces 06. Figure 1 Only the connection between some touch electrodes 20 and touch pins 042 is shown, and the actual wiring of touch traces 06 is not limited. In some other embodiments of the present disclosure, the touch electrode can also be embodied as a strip structure connected by multiple diamond-shaped electrode blocks, for example, please refer to Figure 3 , Figure 3 FIG. 1 is a schematic diagram of a structure of a touch electrode provided in an embodiment of the present disclosure. It should be noted that, in order to distinguish different touch electrodes, Figure 3 Different touch electrodes are filled differently, but in fact the diamond-shaped electrode blocks in different touch electrodes may be located in the same layer. Figure 3 For example, the touch electrode 20 includes a first touch electrode 21 and a second touch electrode 22. When the touch electrode is integrated into a display panel, two touch metal layers can be introduced into the display panel, wherein the rhombus electrode blocks corresponding to the first touch electrode 21 and the second touch electrode 22 and the connecting parts between the rhombus electrode blocks of one touch electrode can be located in one touch metal layer, and the connecting parts between the rhombus electrode blocks of another touch electrode can be located in another touch metal layer, so as to realize a cross-bridge connection. This disclosure does not specifically limit this. Figure 2 and Figure 3 The mutual capacitance touch electrode is taken as an example for illustration, but the present disclosure is not limited to this. In some other embodiments of the present disclosure, the touch electrode may also be embodied as a self-capacitance structure. Figure 1 The illustrated embodiment shows a scheme in which the touch lines connected to the touch electrodes extend from the first side of the display area along the first direction to the first non-display area. In some other embodiments of the present disclosure, some touch lines (for example, touch lines corresponding to touch electrodes formed by connecting diamond-shaped electrode blocks arranged along the second direction) may also extend from both sides of the display area along the second direction to the first non-display area, but the present disclosure is not limited to this.

[0042] Please continue to refer to Figures 1 to 5 The present disclosure provides a display module 100, which includes a display panel 01, at least one flexible circuit board 02 and a first power line 03. The display panel 01 includes a display area AA and a non-display area NA, the non-display area NA is located outside the display area AA, and the display area AA includes a plurality of pixels 10 and a plurality of touch electrodes 20 for displaying images and realizing touch functions. It should be noted that the drawings of the present disclosure only illustrate the arrangement of the pixel 10 array as an example, and do not represent the actual structure and arrangement of the pixel 10, nor are they limited to this. The specific structure and actual arrangement of the pixel 10 can be set according to actual needs.

[0043] The display module 100 further includes a flexible circuit board 02, which is electrically connected to the display panel 01 and is bound to the first non-display area NA-1 in the non-display area NA. At the same time, the flexible circuit board 02 is also electrically connected to the touch electrodes 20 in the display area AA to provide a driving signal to the touch electrodes 20; the flexible circuit board 02 also transmits a first power signal to the pixels 10 in the display area AA.

[0044] The display module 100 also includes a first power line 03, which is configured to provide a first power signal to the pixels 10 in the display area AA. It should be noted that the voltage of the first power signal will affect the brightness of the pixels 10 in the display area AA. Therefore, the difference in the size of the first power signal obtained by the pixels 10 in the display area AA will affect the uniformity of the brightness of the display module 100. In other words, when the difference in the first power signal obtained by the pixels 10 in different areas of the display area AA is large, the brightness uniformity of the display module 100 is poor, and when the difference in the first power signal obtained by the pixels 10 in different areas of the display area AA is small, the brightness uniformity of the display module 100 is good.

[0045] When the touch electrodes are integrated in the display panel, the present disclosure introduces a flexible circuit board dedicated to driving the touch electrodes in the display panel, which is electrically connected to the binding pads in the first non-display area. Due to the introduction of the flexible circuit board and a binding pad, the arrangement of the binding pads originally corresponding to the first power line in the display panel is disrupted, and the layout of the first power line is changed. In order to avoid the influence of the introduction of the flexible circuit board on the first power signal transmitted on the first power line, the present disclosure improves the structure of the first power line 03, and the first power line 03 includes a main body 031 and an extension part 032, the main body 031 and the extension part 032 are connected, and the main body 031 and the extension part 032 are both located in the first non-display area NA-1, and the main body 031 extends along the second direction F2 and is located between the display area AA and the extension part 032 along the first direction F1. The extension portion 032 extends along the first direction F1 and is electrically connected to the flexible circuit board 02 (specifically, it is electrically connected to the flexible circuit board 02 through the binding pad 04). The first power signal is connected through the flexible circuit board 02 and transmitted to the extension portion 032 and the main body 031. The main body 031 is electrically connected to the pixel 10 in the display area AA, and the first power signal is transmitted to the pixel 10. In the display module 100 provided by the present disclosure, the flexible circuit board 02 is electrically connected to the touch electrode 20 on the one hand, and the touch signal is transmitted through the flexible circuit board 02. On the other hand, the flexible circuit board 02 transmits the first power signal to the pixel 10. In this way, the touch signal and the first power signal are transmitted through the flexible circuit board 02. In the first non-display area NA-1, the space of the binding area corresponding to the flexible circuit board 02 is reasonably utilized, which is conducive to the reasonable distribution of the incoming line arrangement structure of the first power line 03, thereby facilitating the reduction of the difference in the first power signal obtained by the pixels 10 in different areas in the display area AA, and facilitating the improvement of the brightness uniformity of the display module 100.

[0046] Optionally, in the present disclosure, a touch chip 021 is bound to the flexible circuit board 02 for transmitting touch signals. The present disclosure can separate the touch chip 021 from the display control chip, which is conducive to realizing separate control of touch and display. The setting method of the display control chip will be described in subsequent embodiments.

[0047] It should be noted that Figure 1 The extension of the first power line shown is for illustration only and does not limit the number of extensions actually included in the first power line. In some other embodiments of the present disclosure, the first power line may include two or more extensions. For example, please refer to Figure 4 , Figure 4 The figure shows another structural schematic diagram of the display module provided by an embodiment of the present disclosure. In an optional implementation manner of the present disclosure, the extension portion 032 includes a first extension portion 032-1 and a second extension portion 032-2. The first extension portion 032-1 and the second extension portion 032-2 are both electrically connected to the same flexible circuit board 02. The second extension portion 032-2 is symmetrically distributed on both sides of the first extension portion 032-1 along the second direction F2. The first direction F1 and the second direction F2 intersect.

[0048] It should be noted that the first non-display area NA-1 includes a plurality of binding pins 04, the extension portion 032 is connected to the binding pins 04, and the flexible circuit board 02 is electrically connected to the extension portion 032 through the binding pins 04. Specifically, the extension portion 032 includes a first extension portion 032-1 and a second extension portion 032-2, both of which are connected to the binding pins 04, and the second extension portion 032-2 is located on both sides of the first extension portion 032-1 and is symmetrically distributed, and the first power signal transmitted on the binding pad 04 can be transmitted to the main body 031 through the first extension portion 032-1 and the second extension portion 032-2 connected thereto, and then transmitted to the pixel 10. It should be noted that the drawings of the present application are only described by taking the example that the extension portion 032 includes a first extension portion 032-1 and two second extension portions 032-2, and are not limited thereto.

[0049] It can be understood that the brightness of the pixels 10 in the display area AA depends to a certain extent on the voltage of the first power signal transmitted by the first power line 03. The voltage uniformity of the first power signal corresponding to the first power line 03 will affect the brightness uniformity of the pixels 10 in the display area AA. Therefore, a reasonable arrangement of the incoming line structure of the first power line 03 is conducive to improving the brightness uniformity of the display module 100. In this embodiment, by providing the first extension part 032-1 and the second extension part 032-2 for the extension part 032, and the second extension part 032-2 is symmetrically arranged on both sides of the first extension part 032-1, it is conducive to improving the wiring uniformity of the extension part 032, thereby facilitating the uniformity of the transmission of the first power signal, and further facilitating the improvement of the brightness uniformity of the display module 100. Moreover, in this embodiment, the number of extension parts 032 is increased. The more the number of extension parts 032 is, the more conducive it is to improve the transmission rate of the first power signal, the more conducive it is to reduce the voltage drop of the first power signal, and thus the more conducive it is to reduce the difference of the first power signal received by different pixels, and the more conducive it is to improve the overall display brightness uniformity of the display module.

[0050] Please continue to refer to Figure 4 In an optional implementation of the present disclosure, the first extension portion 032 - 1 corresponding to at least one flexible circuit board 02 is located in an extension direction of a center line X of the display panel 01 extending along the first direction F1.

[0051] Specifically, the display module 100 includes at least one flexible circuit board 02, and the flexible circuit board 02 is connected to the binding pin 04 in the first non-display area NA-1. The binding pin 04 connected to the flexible circuit board 02, the corresponding extension part 032 includes a first extension part 032-1 and a second extension part 032-2, and the second extension part 032-2 is symmetrically distributed on both sides of the first extension part 032-1, which is conducive to improving the wiring uniformity of the extension part 032, thereby facilitating the improvement of the uniformity of the first power supply signal in the display area AA, and further facilitating the improvement of the brightness uniformity of the display module 100. At the same time, the embodiment of the present disclosure also provides that the first extension part 032-1 corresponding to the at least one flexible circuit board 02 is located in the extension direction of the center line of the display panel 01 extending along the first direction F1, that is, the center line of the display panel 01 extending along the first direction F1 passes through the first extension part 032-1.

[0052] When adjusting the display brightness of the display module 100, the OTP (One Time Programming) method is to adjust the data voltage setting according to the actual voltage of the first power signal at the center point of the display area AA. The brightness of the center point of the display area is a fixed value, and the brightness of other areas is adjusted according to the brightness of the center point. Therefore, reducing the voltage difference between the first power signal in the display area AA at the input port of the first power line and the voltage of the first power signal at the center point is conducive to optimizing the problem of abnormal brightness of the display at the input port. When the touch electrode is integrated in the display panel, the introduction of the flexible circuit board reduces the original input port (binding pad) of the first power signal line. In the related art, if the flexible circuit board corresponding to the touch electrode is set at the center position of the first non-display area of ​​the display module, the original input port of the first power signal line will be located on both sides of the flexible circuit board. If the lateral size of the display panel is large, the distance between the input port of the first power line and the center point of the display panel will be large, the current path will be long, and the voltage drop will be large when the first power signal is transmitted to the center point of the display panel. Therefore, the difference between the first power signal at the input port and the center of the display panel is large, resulting in the problem of abnormally bright display area near the input port.

[0053] In order to solve the above problem, the present embodiment uses a flexible circuit board to transmit the first power signal, and by arranging the first extension portion 032-1 corresponding to at least one flexible circuit board 02 in the extension direction of the center line X extending along the first direction F1 of the display panel 01, it is helpful to reduce the distance between the first extension portion 032-1 and the center point of the display panel 01. The smaller the distance, the smaller the transmission path of the first power signal, and the more conducive to reducing the transmission voltage drop of the first power signal. Therefore, it is helpful to reduce the voltage drop of the first power signal between the first extension portion 032-1 and the center point of the display panel 01, and it is helpful to reduce the brightness difference between the display area near the first extension portion and the center point of the display panel, so that the display brightness of the display area near the first extension portion 032-1 tends to be consistent with the brightness at the center point of the display panel, avoiding the problem of abnormal brightness in the display area near the first extension portion 032-1, so as to improve the uneven display phenomenon of the display panel 01 and enhance the display effect of the display panel 01.

[0054] It should also be noted that the present disclosure Figure 4 The embodiment shown provides a display module 100 including a flexible circuit board 02, but the present disclosure is not limited thereto. In some other embodiments of the present disclosure, the display module may also include two or more flexible circuit boards, for example, see Figure 5 , Figure 5FIG. 1 is another structural schematic diagram of a display module provided by an embodiment of the present disclosure. The present disclosure also provides another implementation mode in which the display module 100 includes two flexible circuit boards 02, and the two flexible circuit boards 02 are configured to be electrically connected to the touch electrodes 20 and transmit the first power supply signal to the pixels 10. The present disclosure is only described by taking the display module 100 including one or two flexible circuit boards 02 as an example, and is not limited thereto.

[0055] Please continue to refer to Figure 4 In an optional embodiment of the present disclosure, a width W1 of the first extension portion 032 - 1 along the second direction F2 is greater than or equal to 15 mm.

[0056] Specifically, the extension portion 032 includes a first extension portion 032-1 and a second extension portion 032-2. The first extension portion 032-1 and the second extension portion 032-2 are both electrically connected to the same flexible circuit board 02. The second extension portion 032-2 is symmetrically distributed on both sides of the first extension portion 032-1. In this embodiment, the width W1 of the first extension portion 032-1 along the second direction F2 is greater than or equal to 15 mm. When the width W1 of the first extension portion 032-1 along the second direction F2 is less than 15 mm, the inlet width of the first extension portion 032-1 is small, which is not conducive to reducing the voltage drop between the inlet port and the center point of the display panel 01; therefore, the width W1 of the first extension portion 032-1 along the second direction F2 is set to be greater than or equal to 15 mm, which, to a certain extent, ensures that the first extension portion 032-1 has a sufficient inlet width, thereby facilitating the reduction of the voltage drop between the inlet port and the center point of the display panel 01, thereby facilitating the improvement of the display uniformity of the display module 100. The present disclosure provides an optional implementation manner that the width W1 of the first extension portion 032 - 1 along the second direction F2 is 15 mm; the present disclosure provides another optional implementation manner that the width W1 of the first extension portion 032 - 1 along the second direction F2 is 16 mm.

[0057] Please continue to refer to Figure 4 In an optional embodiment of the present disclosure, along the second direction F2, the width W1 of the first extension portion 032 - 1 is greater than the width W2 of the second extension portion 032 - 2 .

[0058] Specifically, the flexible circuit board 02 is bound to the first non-display area NA-1 through the binding pin 04, and the first power line 03 is also electrically connected to the binding pin 04. The first power signal is transmitted to the pixel 10 of the display area AA through the flexible circuit board 02 and the first power line 03. The first power line 03 includes a main body 031 and an extension part 032 connected to the main body 031. The main body 031 and the extension part 032 are both located in the first non-display area NA-1. The extension part 032 is located between the binding pin 04 and the main body 031, and receives the first power signal through the binding pin 04. The extension part 032 connected to the binding pin 04 includes a first extension part 032-1 and a second extension part 032-2. The second extension part 032-2 is symmetrically distributed on both sides of the first extension part 032-1 along the second direction F2, which is conducive to improving the wiring uniformity of the extension part 032, thereby facilitating the uniformity of the transmission of the first power signal, and further facilitating the improvement of the brightness uniformity of the display module 100. In this embodiment, the width W1 of the first extension portion 032-1 along the first direction F1 is set to be greater than the width W2 of the second extension portion 032-2 along the second direction F2, which is beneficial to improving the transmission rate of the first power signal transmitted on the first extension portion 032-1, further reducing the display brightness difference between the display area around the first extension portion 032-1 and the center point of the display panel, and is more beneficial to weakening the abnormal brightness of the display area around the first extension portion, thereby helping to improve the problem of uneven display.

[0059] Figure 6 FIG. 1 is a schematic diagram of a regional structure of a display module provided in an embodiment of the present disclosure. Please refer to FIG. Figure 1 and Figure 6 In an optional embodiment of the present disclosure, the first non-display area NA-1 includes a first binding area NA-11 corresponding to the flexible circuit board 02, and the first binding area NA-11 includes a plurality of touch pins 042 and a plurality of power pins 041, and the touch pins 042 and the power pins 041 are both electrically connected to the flexible circuit board 02; in order to better distinguish the power pins from the touch pins, Figure 6 The two are filled differently.

[0060] The first non-display area NA-1 also includes a first wiring area NA-12 located between the first binding area NA-11 and the display area AA along the first direction F1. The first extension portion 032-1 and the second extension portion 032-2 are located in the first wiring area NA-12 and are electrically connected to the power pin 041. The first wiring area NA-12 also includes a fan-out line 05.

[0061] The display panel 01 further includes a touch line 06 electrically connected to the touch electrode 20 . The fan-out line 05 is electrically connected to the touch line 06 and the touch pin 042 , respectively. Along the second direction F2 , the fan-out line 05 is located between the first extension portion 032 - 1 and the second extension portion 032 - 2 .

[0062] It should be noted that Figure 6 The power pin 041 and the touch pin 042 in the illustrated embodiment belong to the binding pin 04 mentioned in the aforementioned embodiment. In order to clearly illustrate the connection relationship between the power pin 041 and the first power line, and the connection relationship between the touch pin 042 and the touch line, Figure 6 Only the power pin 041 and the touch pin 042 are shown, and both the power pin 041 and the touch pin 042 are used to be electrically connected to the flexible circuit board 02. The flexible circuit board 02 transmits touch-related signals through the touch pin 042 and transmits power signals through the power pin 041. In fact, other types of binding pins are also provided in the binding area corresponding to the first non-display area, for example, the binding pins corresponding to the data lines in the display panel are used to transmit data signals to the data lines in the display panel; for another example, the binding pins corresponding to the gate drive circuit in the display panel are used to transmit control signals to the gate drive circuit in the display panel. These binding pins are used to transmit display-related signals. Optionally, these binding pins can be located on one side or both sides of the binding pins corresponding to the flexible circuit board 02 along the second direction F2, and are used to bind to the chip-on-film. The chip-on-film will be described in subsequent embodiments.

[0063] Specifically, the first non-display area NA-1 includes a first binding area NA-11 and a first wiring area NA-12. Along the first direction F1, the first wiring area NA-12 is located between the first binding area NA-11 and the display area AA. The first binding area NA-11 is arranged corresponding to the flexible circuit board 02. The first binding area NA-11 includes a plurality of binding pins 04, including a touch pin 042 and a power pin 041. The flexible circuit board 02 is electrically connected to the touch pin 042 and the power pin 041 in the first binding area NA-11. In the first wiring area NA-12, a first extension portion 032-1, a second extension portion 032-2 and a fan-out line 05 are included. The first extension portion 032-1 and the second extension portion 032-2 are electrically connected to the power pin 041 in the first binding area NA-11, and the fan-out line 05 is electrically connected to the touch pin 042 in the first binding area NA-11. It should be noted that the setting of the fan-out line 05 is conducive to reducing the space occupied by the touch line 06. The display panel 01 also includes a touch line 06, which is electrically connected to the touch electrode 20, and sends a signal to the touch electrode 20 or receives a signal sent by the touch electrode 20 through the touch line 06. The touch line 06 is electrically connected to the touch pin 042 through the fan-out line 05 in the first wiring area NA-12, and the fan-out line 05 is located between the first extension portion 032-1 and the second extension portion 032-2. It can be understood that the fan-out line 05 is electrically connected to the touch pin 042, the first extension part 032-1 and the second extension part 032-2 are electrically connected to the power pin 041, and the fan-out line 05 is set between the first extension part 032-1 and the second extension part 032-2. The touch line 06 transmits the touch signal from the flexible circuit board 02 through the fan-out line 05, and the flexible circuit board 02 transmits the first power signal through the first extension part 032-1 and the second extension part 032-2, and transmits the touch signal through the fan-out line 05 and the touch line 06 are electrically connected. The fan-out line 05 is set between the first extension part 032-1 and the second extension part 032-2, which is conducive to the rational use of wiring space and the transmission of power signals and touch signals on the flexible circuit board 02.

[0064] Please continue to refer to Figure 1 , Figure 3 and Figure 6In an optional embodiment of the present disclosure, the touch electrode 20 includes a plurality of first touch electrodes 21 and a plurality of second touch electrodes 22, the first touch electrodes 21 are arranged along the first direction F1, and the second touch electrodes 22 are arranged along the second direction F2; the touch trace 06 includes a first touch trace 061 electrically connected to the first touch electrode 21 and a second touch trace 062 electrically connected to the second touch electrode 22, the fan-out line 05 includes a first fan-out line 051 electrically connected to the first touch trace 061 and a second fan-out line 052 electrically connected to the second touch trace 062; the first wiring area NA-12 includes a first fan-out area 121 and a second fan-out area 122 located on both sides of the first extension portion 032-1 along the second direction F2, and the first fan-out area 121 and the second fan-out area 122 are both provided with a first fan-out line 051 and a second fan-out line 052. It should be noted that, Figure 6 Only some touch electrodes and the connection relationship between the touch traces, fan-out lines and touch pins corresponding to the touch electrodes are shown, which does not represent the actual number of touch electrodes, fan-out lines and touch pins included in the display panel.

[0065] Specifically, the display panel 01 includes a plurality of touch electrodes 20, the touch electrodes 20 include a first touch electrode 21 and a second touch electrode 22, and the first touch electrode 21 and the second touch electrode 22 are arranged along a first direction F1 and a second direction F2, respectively. It should be noted that the arrangement of the first touch electrodes 21 and the second touch electrodes 22 shown in the drawings of the present disclosure is only for illustration and does not represent its actual structure. The touch electrode 20 is electrically connected to the touch trace 06, and the touch trace 06 includes a first touch trace 061 and a second touch trace 062. The first touch electrode 21 is electrically connected to the first touch trace 061, and the second touch electrode 22 is electrically connected to the second touch trace 062. The touch trace 06 is electrically connected to the touch pin 042 in the first binding area NA-11 through the fan-out line 05. The fan-out line 05 includes a first fan-out line 051 and a second fan-out line 052. The first touch trace 061 is electrically connected to the touch pin 042 through the first fan-out line 051, and the second touch trace 062 is electrically connected to the touch pin 042 through the second fan-out line 052. In this embodiment, a first fan-out area 121 and a second fan-out area 122 are respectively arranged on both sides of the first extension portion 032-1. The first fan-out area 121 includes a first fan-out line 051 electrically connected to the first touch line 061 and a second fan-out line 052 electrically connected to the second touch line 062; the second fan-out area 122 also includes a first fan-out line 051 electrically connected to the first touch line 061 and a second fan-out line 052 electrically connected to the second touch line 062. In this way, the first touch line 061 led out through the display area can be connected to the first fan-out line 051 in the first fan-out area 121 or the second fan-out area 122, and the second touch line 062 led out through the display area can be connected to the second fan-out line 052 in the first fan-out area 121 or the second fan-out area 122, which simplifies the wiring complexity between the first touch line 061 and the first fan-out line 051, and between the second touch line 062 and the second fan-out line 052.

[0066] Exemplarily, the touch electrode 20 includes a touch sending electrode and a touch receiving electrode, the touch trace 06 includes a touch trace electrically connected to the touch sending electrode and a touch trace electrically connected to the touch receiving electrode, the first touch electrode 21 and the second touch electrode 22 mentioned in this embodiment can be respectively embodied as a touch driving electrode and a touch sensing electrode, and the first touch trace 061 and the second touch trace 062 are respectively connected to the touch driving electrode and the touch sensing electrode. It should be noted that this application is only described by taking this as an example and is not limited thereto.

[0067] Figure 7 FIG. 1 is another schematic diagram of the regional structure of the display module provided by the embodiment of the present disclosure. Please refer to FIG. Figure 1 and Figure 7In an optional embodiment of the present disclosure, the display module further includes a second power line 07, the second power line 07 is configured to provide a second power signal to the pixel 10 of the display area AA; the second power line 07 includes a main portion 071 and a branch portion 072 that are electrically connected, and the main portion 071 and the branch portion 072 are both located in the first non-display area NA-1;

[0068] In the first binding area NA-11, the power pin 041 includes a first power pin 041-1 electrically connected to the first power line 03 and a second power pin 041-2 connected to the second power line 07, and the branch 072 is electrically connected to the second power pin 041-2; along the second direction F2, the branch 072 is symmetrically distributed on both sides of the first extension portion 032-1.

[0069] It should be noted that, for the sake of clarity, Figure 7 Only a partial structure in the first non-display area NA- 1 and the flexible circuit board 02 are shown, and different fillings are set for the first power pin 041 - 1 and the second power pin 041 - 2 .

[0070] Specifically, the display module 100 includes a first power line 03 and a second power line 07. The first power line 03 is used to provide a first power signal to the pixel 10 in the display area AA, and the second power line 07 is used to provide a second power signal to the pixel 10 in the display area AA. The first power line 03 includes a main body 031 and an extension 032 electrically connected to the main body 031. The main body 031 and the extension 032 are both located in the first non-display area NA-1. The main body 031 is located between the display area AA and the extension 032. The extension 032 extends along the first direction F1. The extension 032 includes a first extension 032-1 and a second extension 032-2. Along the second direction F2, the second extension 032-2 is symmetrically distributed on both sides of the first extension 032-1. The second power line 07 includes a main portion 071 and a branch portion 072 electrically connected to the main portion 071. The main portion 071 and the branch portion 072 are both located in the first non-display area NA-1. The main portion 071 is located between the display area AA and the branch portion 072. The branch portion 072 extends along the first direction F1. The first binding area NA-11 includes power pins 041. The power pins 041 include a first power pin 041-1 and a second power pin 041-2. The first power pin 041-1 and the second power pin 041-2 are connected to different power lines. The first power pin 041-1 is electrically connected to the first power line 03, and the second power pin 041-2 is electrically connected to the second power line 07. Along the second direction F2, the branch portions 072 are symmetrically distributed on both sides of the first extension portion 032-1. Such a configuration is conducive to reasonably arranging the positions of the first extension portion 032 - 1 , the second extension portion 032 - 2 and the branch portion 072 , thereby facilitating uniform wiring, and further facilitating improving the display uniformity of the display panel 01 .

[0071] Optionally, the present disclosure mentions that the pixel includes a pixel driving circuit and a light-emitting element connected to the pixel driving circuit, the first power line can be regarded as a signal line that provides a positive power signal to the pixel driving circuit, and the second power line can be regarded as a signal line that provides a negative power signal to the light-emitting element. Figure 8 FIG. 1 is a schematic diagram of a pixel driving circuit provided by an embodiment of the present disclosure. Please refer to FIG. Figure 1 , Figure 7 and Figure 8 In an optional embodiment of the present disclosure, the pixel 10 includes a light-emitting element D0 and a pixel driving circuit 000 electrically connected to a first pole of the light-emitting element D0, the first power line 03 is configured to be electrically connected to the pixel driving circuit 000 and provide a first power signal PVDD to the pixel driving circuit 000, and the second power line 07 is configured to be electrically connected to a second pole of the light-emitting element D0 and provide a second power signal PVEE to the light-emitting element D0.

[0072] Specifically, the display panel 01 includes a display area AA, and the display area AA includes a plurality of pixels 10. The pixel 10 includes a light-emitting element D0 and a pixel driving circuit 000 electrically connected to the light-emitting element D0. The pixel driving circuit 000 is used to drive the light-emitting element D0 corresponding to the pixel 10 to emit light. Exemplarily, the present application provides a pixel driving circuit 000, which includes a first transistor M1, a second transistor M2, a third transistor M3, a fourth transistor M4, a fifth transistor M5, a sixth transistor M6, a seventh transistor M7 and a capacitor C, wherein the third transistor M3 is a driving transistor, which is used to provide a driving current for the light-emitting element D0, and the gate, the first electrode and the second electrode of the driving transistor are respectively connected to the first node N1, the second node N2 and the third node N3. The first electrode and the second electrode of the first transistor M1 are respectively connected to the first power signal PVDD and the second node N2, for transmitting the first power signal PVDD to the first electrode of the driving transistor; the first electrode and the second electrode of the second transistor M2 are respectively connected to the data voltage signal Vdata and the second node N2, for transmitting the data voltage signal Vdata to the second node N2; the first electrode and the second electrode of the fourth transistor M4 are respectively connected to the first node N1 and the third node N3, for threshold compensation of the third transistor M3; the first electrode and the second electrode of the fifth transistor M5 are respectively connected to the first reset signal Vref1 and the first node N1, for providing the first reset signal Vref1 to the first node N1; the first electrode and the second electrode of the sixth transistor M6 are respectively connected to the third node N3 and the first electrode of the light-emitting element D0, for transmitting the driving current to the light-emitting element D0; the first electrode and the second electrode of the seventh transistor M7 are respectively connected to the second reset signal Vref2 and the first electrode of the light-emitting element D0, for resetting the first electrode of the light-emitting element D0; the second electrode of the light-emitting element D0 is connected to the second power signal PVEE.

[0073] Fig. 9 Shown Figure 8 A timing diagram of the pixel driving circuit in Figure 8 and Fig.10 , the specific working process of the pixel driving circuit 000 includes an initialization stage T1, a data writing stage T2 and a light emitting stage T3; in the initialization stage T1, the fifth transistor M5 is turned on, and the first reset signal Vref1 is transmitted to the control end of the third transistor M3 for initialization, so that the residual charge of the previous frame can be eliminated to improve the display effect of the display panel 01. In the data writing stage T2, the fifth transistor M5 is turned off, the second transistor M2, the fourth transistor M4 and the seventh transistor M7 are turned on, and the data voltage signal Vdata is written into the third transistor M3. The fourth transistor M4 is connected between the gate and the second electrode of the third transistor M3, and the threshold voltage of the third transistor M3 can be captured to the gate of the third transistor M3 to achieve threshold voltage compensation; at the same time, the seventh transistor M7 transmits the second reset signal Vref2 to the first electrode of the light emitting element D0 for reset, which can clear the residual charge of the previous frame, so that the light emitting element D0 can more accurately display the brightness to be displayed, thereby improving the display effect of the display panel 01; it should be noted that the reset process of the light emitting element D0 can also be performed in the initialization stage, and the present disclosure is not limited to this. Furthermore, the capacitor C is connected between the gate and the first electrode of the third transistor M3, and can maintain the potential of the third transistor M3. In the light-emitting stage T3, the second transistor M2, the fourth transistor M4, the fifth transistor M5 and the seventh transistor M7 are all turned off, the first transistor M1, the third transistor M3 and the sixth transistor M6 are all turned on, and the driving current is transmitted to the first electrode of the light-emitting element D0, and the light-emitting element D0 emits light. It should be noted that the present disclosure is only based on Figure 8 Take the pixel driving circuit as an example to explain, Fig. 9 The timing diagram is only for illustration and is not intended to be limiting. In some other embodiments of the present disclosure, the pixel driving circuit may also be embodied as other feasible structures. At the same time, the present disclosure does not limit the type of transistors in the pixel driving circuit.

[0074] In the above pixel driving circuit 000, taking the driving transistor as a P-type transistor as an example, its Vth<0. In the light emitting stage, the voltage V N1 Equal to the voltage of the data voltage signal V data Add the threshold voltage V of the third transistor th , that is, V N1 =V data +V th , the voltage V of the second node N2 N2 is equal to the voltage of the first power supply signal, that is, V N2=PVDD, the voltage V of the third node N3 N3 = The voltage of the second power supply signal PVEE plus the voltage of the light-emitting element V D0 , that is, V N3 =PVEE+V D0 The brightness of the light-emitting element D0 depends on the current flowing through the light-emitting element D0. d =K(V data +V th -PVDD-V th ) 2 =K(V data -PVDD) 2 , it can be concluded from the above formula that the first power signal PVDD directly affects the brightness of the light-emitting element D0. When Vdata is fixed, when the voltage of the first power signal PVDD is higher, the current flowing through the light-emitting element D0 is larger, and the brightness of the light-emitting element D0 is higher; when the voltage of the first power signal PVDD is lower, the current flowing through the light-emitting element D0 is smaller, and the brightness of the light-emitting element D0 is lower. Therefore, by adjusting the voltage of the first power signal PVDD, the brightness of the light-emitting element D0 can be adjusted. In the present disclosure, the first power line 03 provides the first power signal PVDD for the pixel driving circuit 000, and the second power line 07 provides the second power signal PVEE for the pixel driving circuit 000. Therefore, the present disclosure is conducive to improving the uniformity of the first power signal PVDD received by different areas in the display panel by adjusting the incoming line structure of the first power line 03, which is conducive to reducing the display brightness difference of the light-emitting element D0 in different areas, thereby improving the display effect of the display module 100.

[0075] From the above analysis, it can be seen that the voltage of the first power signal PVDD affects the brightness of the light-emitting element D0. When the voltage of the first power signal PVDD is small, the brightness of the light-emitting element D0 is low. The present disclosure reduces the voltage drop of the first power signal by adjusting the arrangement of the extension 032, such as the arrangement uniformity or line width, which is beneficial to reducing the voltage difference of the first power signal PVDD, thereby facilitating the brightness uniformity of the light-emitting element D0, thereby facilitating improving the display uniformity of the display module 100.

[0076] Fig.10 FIG. 1 is another structural schematic diagram of a display module provided in an embodiment of the present disclosure. Please refer to FIG. Fig.10In an optional embodiment of the present disclosure, the extension portion 032 also includes a third extension portion 032-3, and along the second direction F2, the third extension portion 032-3 is located on a side of the second extension portion 032-2 away from the first extension portion 032-1; the display module 100 also includes a chip-on-chip film 08, which is electrically connected to the third extension portion 032-3, and the chip-on-chip film 08 is configured to provide a display signal to the pixel 10 and transmit a first power signal to the main body 031.

[0077] It should be noted that the chip on film 08 (Chip on Film, referred to as COF) is also commonly referred to as a chip on soft film assembly technology. In practical applications, the flexible circuit board and the chip on film can be bent to the back of the display panel to save space in the non-display area NA and realize a narrow frame design of the display module. In the present disclosure, the chip on film 08 includes a display control chip 081, which is used to transmit display-related signals. For example, the chip on film 08 can be electrically connected to the binding pins corresponding to the data lines in the display panel to transmit data signals to the data lines in the display panel. Please refer to Fig.11 The display module also includes a printed circuit board PCBA. The other ends of the flexible circuit board 02 and the flip chip film 08 that are not bound to the display panel 01 are electrically connected to the printed circuit board PCBA. The flexible circuit board 02 and the flip chip film 08 are both provided with connection pads 09 corresponding to the printed circuit board PCBA, and are electrically connected to the printed circuit board PCBA through the connection pads 09. It should be noted that Fig.11 The number and arrangement of the connecting pads 09 are for illustration only. Fig.11 Shown is another structural schematic diagram of the display module provided by the embodiment of the present disclosure. The first power signal and the second power signal mentioned in the above embodiment are respectively transmitted to the binding pads corresponding to the flexible circuit board 02 and the chip-on-chip film 08 through the printed circuit board PCBA, and are further transmitted to the display panel. There are many circuit components arranged on the printed circuit board PCBA for realizing functions such as power supply, storage, and data transmission. For details, please refer to the relevant technology, which is not limited by the present disclosure. Optionally, in order to reduce the width of the lower frame of the display product, the flexible circuit board 02 and the chip-on-chip film 08 can be bent to the non-light-emitting surface of the display panel 01, and the electrical connection with the printed circuit board PCBA is realized on the non-light-emitting surface. It should be noted that the present disclosure Fig.11The embodiment shown is described by taking the display module 100 including a flexible circuit board 02 and two chip-on-chip films 08 as an example. This structure is suitable for display modules with a larger width. For example, the size of the display module along the second direction F2 is larger than its size along the first direction F1. In this case, two or more chip-on-chip films 08 are provided to meet the demand of providing the display module with a larger width with the required display signal. It should also be noted that the sizes of the display module along the first direction F1 and the second direction F2 in other embodiments are only for illustration. The display module can be set as follows according to actual needs. Fig.11 The structure shown has a larger width, and the present disclosure does not make any specific limitations on this.

[0078] For more details, please refer to Fig.10 The display module 100 includes a flexible circuit board 02 and a chip-on-film 08. Both the flexible circuit board 02 and the chip-on-film 08 are bound to the first binding area NA-11 through the binding pins 04. Both the flexible circuit board 02 and the chip-on-film 08 can be used to transmit the first power signal. The first power line 03 includes a main body 031 and an extension part 032. The extension part 032 includes a first extension part 032-1, a second extension part 032-2 and a third extension part 032-3. The first extension part 032-1 and the second extension part 032-2 are electrically connected to the flexible circuit board 02, and the third extension part 032-3 is electrically connected to the chip-on-film 08. The first power signal can be transmitted through the first extension part 032-1, the second extension part 032-2, and the third extension part 032-3, that is, the first power signal can be transmitted through the flexible circuit board 02 and the chip-on-film 08 at the same time. That is to say, the first power signal can be transmitted to the pixel 10 of the display area AA through the first extension portion 032-1 and the second extension portion 032-2 corresponding to the flexible circuit board 02, and at the same time, the first power signal can be transmitted to the pixel 10 of the display area AA through the third extension portion 032-3 corresponding to the flip chip film 08, wherein the second extension portion 032-2 is symmetrically arranged on both sides of the first extension portion 032-1 along the second direction F2, and the third extension portion 032-3 is located on the side of the second extension portion 032-2 away from the first extension portion 032-1. Such a configuration is beneficial to the uniformity of the arrangement of the first extension portion 032-1, the second extension portion 032-2 and the third extension portion 032-3, thereby helping to reduce the voltage difference of the corresponding first power signal and improving the brightness uniformity of the display module 100. Moreover, it is equivalent to increasing the number of extension parts connected to the main body in the first power line. The method of transmitting the first power signal through a larger number of extension parts is more conducive to improving the transmission rate of the first power signal and reducing the voltage drop of the first power signal, which is beneficial to reducing the display brightness difference of different display areas and improving the overall display brightness uniformity of the display panel.

[0079] Please continue to refer to Fig.10In an optional embodiment of the present disclosure, along the second direction F2, the third extension portions 032-3 are symmetrically arranged on both sides of the first extension portion 032-1, and a width W3 of the third extension portion 032-3 is less than or equal to a width W2 of the second extension portion 032-2.

[0080] Specifically, the extension portion 032 includes a first extension portion 032-1, a second extension portion 032-2 and a third extension portion 032-3. Along the second direction F2, the second extension portion 032-2 is symmetrically arranged on both sides of the first extension portion 032-1, and the third extension portion 032-3 is symmetrically arranged on both sides of the first extension portion 032-1, that is, the first extension portion 032-1, the second extension portion 032-2 and the third extension portion 032-3 are symmetrically arranged, which is further conducive to the uniform arrangement of the extension portion 032, thereby facilitating the reduction of the transmission difference of the first power supply signal and facilitating the improvement of the brightness uniformity of the display module 100. If space permits, the width of the third extension portion 032-3 can be set to be equal to the width of the second extension portion 032-2 to balance the impedance of the second extension portion 032-2 and the third extension portion 032-3, so that the display brightness of the display area around the second extension portion 032-2 and the display area around the third extension portion 032-3 is more consistent. If space is limited, the width of the third extension portion 032 - 3 may be set to be smaller than the width of the second extension portion 032 - 2 and as close to the width of the second extension portion 032 - 2 as possible to reduce the impedance difference between the two.

[0081] Fig.12 FIG. 1 is another structural schematic diagram of a display module provided in an embodiment of the present disclosure. Please refer to FIG. Fig.12 In an optional embodiment of the present disclosure, the extension portion 032 also includes a fourth extension portion 032-4. Along the second direction F2, the fourth extension portion 032-4 is located on a side of the third extension portion 032-3 away from the second extension portion 032-2, and the fourth extension portion 032-4 is electrically connected to the flip chip film 08.

[0082] Specifically, in this embodiment, the extension portion 032 includes a first extension portion 032-1, a second extension portion 032-2, a third extension portion 032-3 and a fourth extension portion 032-4. Along the second direction F2, the second extension portion 032-2 is symmetrically arranged on both sides of the first extension portion 032-1, the third extension portion 032-3 is symmetrically arranged on the brightness of the first extension portion 032-1, and the fourth extension portion 032-4 is located on the side of the third extension portion 032-3 away from the second extension portion 032-2. Among them, the first extension portion 032-1 and the second extension portion 032-2 are electrically connected to the flexible circuit board 02, and the third extension portion 032-3 and the fourth extension portion 032-4 are electrically connected to the COF 08. Such a configuration is conducive to the reasonable arrangement of the incoming line structure of the first power line 03, and improves the incoming line uniformity of the first power line 03, thereby facilitating the improvement of the brightness uniformity of the display module 100. This embodiment further increases the number of extension parts corresponding to the first power line, and obtains the first power signal by electrically connecting more extension parts with the binding pins. This is more conducive to improving the transmission rate of the first power signal, reducing the voltage drop of the first power signal, and improving the overall display brightness uniformity of the display panel.

[0083] It should be noted that when the width of the first extension portion 032-1, the second extension portion 032-2, the third extension portion 032-3 or the fourth extension portion 032-4 along the second direction F2 is wider, the first extension portion 032-1, the second extension portion 032-2, the third extension portion 032-3 or the fourth extension portion 032-4 can be respectively connected to multiple power pins 041, which can be designed according to actual conditions and is not specifically limited in the present disclosure.

[0084] Furthermore, in an optional embodiment of the present disclosure, along the second direction F2, the fourth extension portions 032-4 are symmetrically arranged on both sides of the first extension portion 032-1, and the width of the fourth extension portion 032-4 is less than or equal to the width of the third extension portion 032-3.

[0085] Specifically, in order to further improve the uniformity of the incoming line of the first power line 03 and reduce the space occupied by the extension portion 032, in this embodiment, along the second direction F2, the second extension portion 032-2 is symmetrically arranged on both sides of the first extension portion 032-1, the third extension portion 032-3 is symmetrically arranged on both sides of the first extension portion 032-1, and the fourth extension portion 032-4 is symmetrically arranged on both sides of the first extension portion 032-1. The width of the third extension portion 032-3 is less than or equal to the width of the second extension portion 032-2, and the width of the fourth extension portion 032-4 is less than or equal to the width of the third extension portion 032-3. On the same side of the first extension portion 032-1, no other extension portion 032 is included between the first extension portion 032-1 and the second extension portion 032-2, the third extension portion 032-3 is located on the side of the second extension portion 032-2 away from the first extension portion 032-1, and the fourth extension portion 032-4 is located on the side of the third extension portion 032-3 away from the first extension portion 032-1. In this way, the first extension portion 032-1, the second extension portion 032-2, the third extension portion 032-3 and the fourth extension portion 032-4 are symmetrically distributed with the first extension portion 032-1 as the symmetry axis, which is more conducive to improving the uniformity of the first power line 03, thereby improving the brightness uniformity of the display module 100. At the same time, if space permits, the present disclosure may set the width W3 of the third extension portion 032-3 to be equal to the width W2 of the second extension portion 032-2, and the width W4 of the fourth extension portion 032-4 to be equal to the width W3 of the third extension portion 032-3, so as to balance the impedance of the second extension portion 032-2, the third extension portion 032-3 and the fourth extension portion 032-4, so that the brightness of the display area near each extension portion tends to be consistent, so as to improve the uniformity of the overall display brightness. If space is limited, the widths of the third extension portion 032-3 and the fourth extension portion 032-4 may be appropriately reduced, but the widths of the two may be made as close as possible to the width of the second extension portion 032-2, so as to balance the impedance differences of different extension portions.

[0086] Fig.13 FIG. 1 is another schematic diagram of a regional structure of a display module provided in an embodiment of the present disclosure. Please refer to FIG. Fig.12 and Fig.13 In an optional embodiment of the present disclosure, along the second direction F2, on the same side of the first extension portion 032-1, the distance between the fourth extension portion 032-4 and the edge of the display area AA is D1, the center distance between the fourth extension portion 032-4 and the third extension portion 032-3 is D2, the center distance between the third extension portion 032-3 and the second extension portion 032-2 is D3, and the center distance between the two second extension portions 032-2 located on both sides of the first extension portion 032-1 is D4, wherein: D1=D3+D4 / 2, D3≥8mm, D4≥20mm.

[0087] It should be noted that for the sake of clarity, Fig.13 It should also be noted that the distance D1 between the fourth extension portion 032-4 and the edge of the display area AA refers to the distance between the fourth extension portion 032-4 located at the edge and the edge of the display area AA closest to it along the second direction F2.

[0088] Specifically, the extension portion 032 includes a first extension portion 032-1, a second extension portion 032-2, a third extension portion 032-3 and a fourth extension portion 032-4, the first extension portion 032-1 and the second extension portion 032-2 are electrically connected to the flexible circuit board 02, and the third extension portion 032-3 and the fourth extension portion 032-4 are electrically connected to the chip-on-film 08. In this embodiment, the distance D1 between the fourth extension portion 032-4 and the edge of the display area AA, the center distance D2 between the fourth extension portion 032-4 and the third extension portion 032-3, the center distance D3 between the third extension portion 032-3 and the second extension portion 032-2, and the center distance D4 between the two second extension portions 032-2 located on both sides of the first extension portion 032-1 are set. In order to improve the arrangement uniformity of the extension portion 032, the present disclosure sets the distance D1=D3+D4 / 2 between the fourth extension portion 032-4 and the edge of the display area AA. Such a setting is beneficial to the arrangement uniformity of the first extension portion 032-1, the second extension portion 032-2, the third extension portion 032-3 and the fourth extension portion 032-4, thereby helping to improve the brightness uniformity of the display module 100.

[0089] Optionally, the center distance D3 between the third extension portion 032-3 and the second extension portion 032-2 is ≥8mm, the second extension portion 032-2 is electrically connected to the flexible circuit board 02, and the third extension portion 032-3 is electrically connected to the chip-on-film 08. By setting D3 ≥8mm, the distance between the chip-on-film 08 and the flexible circuit board 02 is controlled. When D3 <8mm, the center distance between the second extension portion 032-2 and the third extension portion 032-3 is too small, resulting in a too small distance between the chip-on-film 08 and the flexible circuit board 02, which is not only not conducive to the binding of the chip-on-film 08 and the flexible circuit board 02, but also not conducive to the transmission of the first power signal, affecting the display effect of the display module 100. Therefore, the present disclosure sets the center distance D3 of the third extension portion 032-3 and the second extension portion 032-2 to be ≥8mm, which is conducive to the binding of the chip-on-film 08 and the flexible circuit board 02, and the transmission of the first power signal, and is conducive to improving the display effect of the display module 100. For example, the center distance D3 between the third extension portion 032-3 and the second extension portion 032-2 is 8 mm; the center distance D3 between the third extension portion 032-3 and the second extension portion 032-2 is 9 mm; the center distance D3 between the third extension portion 032-3 and the second extension portion 032-2 is 12 mm; and so on. The specific settings can be made according to actual needs and are not specifically limited in this application.

[0090] The embodiment of the present disclosure also sets the center distance D4 of the two second extension parts 032-2 located on both sides of the first extension part 032-1 to be ≥20mm. When the center distance D4 of the two second extension parts 032-2 located on both sides of the first extension part 032-1 is less than 20mm, it is not conducive to the wide input of the first power signal corresponding to the flexible circuit board 02, and further to the transmission of the signal of the flexible circuit board 02. Therefore, the embodiment of the present disclosure sets the center distance D4 of the two second extension parts 032-2 located on both sides of the first extension part 032-1 to be ≥20mm, which is conducive to the wide input of the first power signal corresponding to the flexible circuit board 02, thereby facilitating the transmission of the signal of the flexible circuit board 02, and further to improving the brightness uniformity of the display module 100. The present disclosure provides an optional implementation manner that the center distance D4 of the two second extension portions 032-2 located on both sides of the first extension portion 032-1 is 20 mm; the present disclosure provides another optional implementation manner that the center distance D4 of the two second extension portions 032-2 located on both sides of the first extension portion 032-1 is 22 mm; the present disclosure provides an optional implementation manner that the center distance D4 of the two second extension portions 032-2 located on both sides of the first extension portion 032-1 is 25 mm.

[0091] It should be noted that the third extension portion 032-3 and the fourth extension portion 032-4 are both electrically connected to the flip chip film 08, and the center distance between the fourth extension portion 032-4 and the third extension portion 032-3 is D2. The present application does not limit the center distance D2 between the fourth extension portion 032-4 and the third extension portion 032-3. The present disclosure provides an optional implementation method that the center distance D2 between the fourth extension portion 032-4 and the third extension portion 032-3 is D2=63mm; the present disclosure provides another optional implementation method that the center distance D2 between the fourth extension portion 032-4 and the third extension portion 032-3 is D2=40mm; the present disclosure provides another optional implementation method that the center distance D2 between the fourth extension portion 032-4 and the third extension portion 032-3 is D2=15mm. The present application is only described by this example and is not limited to this.

[0092] Fig.14 FIG. 1 is a schematic diagram of a structure of a first non-display area in a display module provided by an embodiment of the present disclosure. This embodiment only illustrates an extension of a first power line, but is not limited thereto. Please refer to Figure 1 and Fig.14 In an optional embodiment of the present disclosure, the main body 031 includes a first main body 031-1, a second main body 031-2 and a connecting portion 031-3 for connecting the first main body 031-1 and the second main body 031-2, the first main body 031-1 and the second main body 031-2 extend along the second direction F2 and are arranged at intervals along the first direction F1, the second main body 031-2 is located between the first main body 031-1 and the display area AA, and the first direction F1 and the second direction F2 intersect; the first main body 031-1 and the second main body 031-2 are in the same layer, and are arranged in a different layer from the connecting portion 031-3; along the first direction F1, the total width of the first main body 031-1 and the second main body 031-2 is H1, and the width of the first non-display area NA-1 is H0, wherein H1>H0 / 10.

[0093] It should be noted that the width of the first main body 031-1 along the first direction F1 is h1, the width of the second main body 031-2 along the first direction F1 is h2, and the total width H1 of the first main body 031-1 and the second main body 031-2 is H1=h1+h2. It should also be noted that the first main body 031-1 and the second main body 031-2 are in the same layer, and are arranged in a different layer from the connecting portion 031-3, and at least part of the film layer of the extension portion 032 is arranged in the same layer as the first main body 031-1 and the second main body 031-2, and at least part of the film layer is arranged in the same layer as the connecting portion 031-3.

[0094] Specifically, the first power line 03 includes a main body 031 and an extension portion 032, the main body 031 extends along the first direction F1, and the extension portion 032 extends along the second direction F2. The main body 031 includes a first main body 031-1, a second main body 031-2 and a connecting portion 031-3. The first main body 031-1 and the second main body 031-2 are arranged on the same layer and have a gap along the first direction F1. The second main body 031-2 is located between the display area AA and the first main body 031-1, and is connected through the connecting portion 031-3 which is arranged on a different layer from the first main body 031-1 and the second main body 031-2. The total width of the first main body 031-1 and the second main body 031-2 along the first direction F1 is H1, and the width of the first non-display area NA-1 along the first direction F1 is H0. The greater the proportion of the total width H1 of the first main body 031-1 and the second main body 031-2 in the first non-display area NA-1, the more conducive it is to increase the lateral shunt, thereby reducing the voltage drop corresponding to the pixel 10 at the center point of the display module 100, thereby reducing the difference in the first power supply signal corresponding to each pixel 10 in the display module 100, which is conducive to improving the brightness uniformity of the display module 100. Therefore, the present disclosure sets the total width H1 of the first main body 031-1 and the second main body 031-2 to be greater than H0 / 10. The present disclosure provides an optional implementation mode, the width H0 of the first non-display area NA-1 is 4 mm, and the total width H1 of the first main body 031-1 and the second main body 031-2 is 0.42 mm; the present disclosure provides another optional implementation mode, the width H0 of the first non-display area NA-1 is 5 mm, and the total width H1 of the first main body 031-1 and the second main body 031-2 is 1 mm. This application is only described by this example, and is not limited to this.

[0095] Based on the same inventive concept, the present disclosure also provides a display device, Fig.15 FIG. 1 is a schematic diagram of a structure of a display device provided in an embodiment of the present disclosure. Please refer to FIG. Fig.15 , the display device 200 includes the display module 100 in any of the above embodiments. The display device 200 provided in the embodiment of the present disclosure may be any electronic device with a display function, such as a tablet computer with touch and display functions, a laptop computer, an e-book, a television, or a car display device. The display device 200 provided in the embodiment of the present disclosure has the beneficial effects of the display module 100 provided in the embodiment of the present disclosure. For details, please refer to the specific description of the display module 100 in the above embodiments, which will not be repeated in this embodiment.

[0096] Understandably, Fig.15Only one shape of the display device 200 is illustrated by taking the vehicle-mounted display device as an example. In some other embodiments of the present disclosure, the display device 200 may also be circular, elliptical or any other feasible shape, and may be applied to other types of display devices. The present disclosure does not specifically limit this.

[0097] It can be seen from the above embodiments that the display module and display device provided by the present disclosure achieve at least the following beneficial effects:

[0098] The present disclosure provides a display module and a display device, wherein the display module includes a display panel, a flexible circuit board and a first power line; the flexible circuit board is electrically connected to the first non-display area, configured to be electrically connected to the touch electrode, and transmit a first power signal to the first pixel; the first power line is configured to provide the first power signal to the pixel in the display area, and the first power line includes a main body and an extension connected to the main body, the main body and the extension are both located in the first non-display area, the extension is located on a side of the main body away from the display area and extends along a first direction; the main body is electrically connected to the pixel, and the extension is electrically connected to the flexible circuit board. The present disclosure realizes the transmission of the touch signal and the first power signal through the flexible circuit board, and in the first non-display area, the space of the binding area corresponding to the flexible circuit board is reasonably utilized, which is conducive to the reasonable distribution of the incoming line arrangement structure of the first power line, thereby facilitating the reduction of the difference in the first power signal obtained by the pixels in different areas of the display area, and facilitating the improvement of the overall brightness uniformity of the display module.

[0099] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0100] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display module, characterized in that: include: The display panel comprises a display area and a non-display area located outside the display area, wherein the display area is provided with a plurality of pixels and a plurality of touch electrodes, and the non-display area comprises a first non-display area located at one side of the display area along a first direction; at least one flexible circuit board, electrically connected to the first non-display area, the flexible circuit board being configured to be electrically connected to the touch electrodes and to transmit a first power signal to the pixels; A first power line, the first power line is configured to provide a first power signal to the pixels in the display area; the first power line includes a main body and an extension portion connected to the main body, the main body and the extension portion are both located in the first non-display area, the extension portion is located on a side of the main body away from the display area and extends along the first direction; the main body is electrically connected to the pixels, and the extension portion is electrically connected to the flexible circuit board.

2. The display module according to claim 1, characterized in that: The extension portion includes a first extension portion and a second extension portion, the first extension portion and the second extension portion are both electrically connected to the same flexible circuit board, the second extension portion is symmetrically distributed on both sides of the first extension portion along a second direction, and the first direction and the second direction intersect.

3. The display module according to claim 2, characterized in that: The first extending portion corresponding to at least one of the flexible circuit boards is located in an extending direction of a center line of the display panel extending along the first direction.

4. The display module according to claim 2, characterized in that: A width of the first extension portion along the second direction is greater than or equal to 15 mm.

5. The display module according to claim 2, characterized in that: Along the second direction, the width of the first extending portion is greater than the width of the second extending portion.

6. The display module according to claim 2, characterized in that: The first non-display area includes a first binding area corresponding to the flexible circuit board, the first binding area includes a plurality of touch pins and a plurality of power pins, and the touch pins and the power pins are both electrically connected to the flexible circuit board; The first non-display area further includes a first wiring area located between the first binding area and the display area along the first direction, the first extension portion and the second extension portion are located in the first wiring area and are electrically connected to the power pin, and the first wiring area further includes a fan-out line; The display panel further includes a touch line electrically connected to the touch electrode, the fan-out line is electrically connected to the touch line and the touch pin respectively, and along the second direction, the fan-out line is located between the first extension portion and the second extension portion.

7. The display module according to claim 6, characterized in that: The touch electrodes include a plurality of first touch electrodes and a plurality of second touch electrodes, the first touch electrodes are arranged along the first direction, and the second touch electrodes are arranged along the second direction; the touch traces include a first touch trace electrically connected to the first touch electrodes and a second touch trace electrically connected to the second touch electrodes, and the fan-out lines include a first fan-out line electrically connected to the first touch trace and a second fan-out line electrically connected to the second touch trace; The first wiring area includes a first fan-out area and a second fan-out area located at two sides of the first extension portion along the second direction, and the first fan-out area and the second fan-out area are both provided with the first fan-out line and the second fan-out line.

8. The display module according to claim 6, characterized in that: Also includes a second power line, the second power line is configured to provide a second power signal to the pixels in the display area; the second power line includes a main part and a branch part that are electrically connected, and the main part and the branch part are both located in the first non-display area; In the first binding area, the power pin includes a first power pin electrically connected to the first power line and a second power pin connected to the second power line, and the branch is electrically connected to the second power pin; along the second direction, the branches are symmetrically distributed on both sides of the first extension portion.

9. The display module according to claim 8, characterized in that: The pixel includes a light-emitting element and a pixel driving circuit electrically connected to a first pole of the light-emitting element, the first power line is configured to be electrically connected to the pixel driving circuit and to provide the first power signal to the pixel driving circuit, and the second power line is configured to be electrically connected to a second pole of the light-emitting element and to provide the second power signal to the light-emitting element.

10. The display module according to claim 2, characterized in that: The extension portion further includes a third extension portion, and along the second direction, the third extension portion is located at a side of the second extension portion away from the first extension portion; The display module further includes a chip-on-film (CFO), which is electrically connected to the third extension portion and configured to provide a display signal to the pixel and transmit the first power signal to the main body portion.

11. The display module according to claim 10, characterized in that: Along the second direction, the third extending portions are symmetrically arranged on both sides of the first extending portion, and a width of the third extending portion is less than or equal to a width of the second extending portion.

12. The display module according to claim 11, characterized in that: The extending portion further includes a fourth extending portion. Along the second direction, the fourth extending portion is located at a side of the third extending portion away from the second extending portion. The fourth extending portion is electrically connected to the chip-on-film.

13. The display module according to claim 12, characterized in that: Along the second direction, the fourth extending portions are symmetrically arranged on both sides of the first extending portion, and a width of the fourth extending portion is less than or equal to a width of the third extending portion.

14. The display module according to claim 12, characterized in that: Along the second direction, on the same side of the first extending portion, the distance between the fourth extending portion and the edge of the display area is D1, the center distance between the fourth extending portion and the third extending portion is D2, the center distance between the third extending portion and the second extending portion is D3, and the center distance between the two second extending portions located on both sides of the first extending portion is D4, wherein: D1=D3+D4 / 2, D3≥8mm, D4≥20mm.

15. The display module according to claim 1, characterized in that: The main body portion includes a first main body portion, a second main body portion and a connecting portion for connecting the first main body portion and the second main body portion, the first main body portion and the second main body portion extend along a second direction and are arranged at intervals along the first direction, the second main body portion is located between the first main body portion and the display area, and the first direction and the second direction intersect; The first main body portion and the second main body portion are arranged in the same layer, and are arranged in a different layer from the connecting portion; Along the first direction, a total width of the first main body portion and the second main body portion is H1, and a width of the first non-display area is H0, wherein H1>H0 / 10.

16. A display device, characterized in that: A display module comprising any one of claims 1 to 15.

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