CN111755465A - Display module and display device - Google Patents

Abstract

The invention discloses a display module and a display device, and relates to the technical field of display, wherein the display module is provided with a display area and a non-display area surrounding the display area, and the non-display area comprises a binding area; the display module assembly includes: the display device comprises a substrate base plate and a common electrode, wherein the substrate base plate is arranged on the substrate base plate and is positioned in a display area; the first signal line, every public electrode block is electrically connected with the first position of different first signal lines separately; the second signal line is positioned in the non-display area, and the second part of each first signal line is electrically connected with different second signal lines respectively; the control chip is positioned in the binding area, and each second signal wire is electrically connected with the control chip respectively; and the detection signal line is positioned in the non-display area, and the second signal line multiplexes the detection signal line. Therefore, the independent control of different common electrode blocks is realized, the problem of nonuniform voltage of each common electrode block is favorably solved, and the design of a narrow frame is favorably realized by multiplexing the second signal line and detecting the signal line.

Description

Display module and display device

technical field

The present invention relates to the field of display technology, and more particularly, to a display module and a display device.

Background technique

From the CRT (Cathode Ray Tube, cathode ray tube) era to the liquid crystal era, and now to the organic light-emitting era, the display industry has undergone decades of development and has become ever-changing. The display industry has been closely related to our lives. From traditional mobile phones, tablets, TVs and PCs, to the current smart wearable devices and VR, display technology is inseparable.

A display module in the prior art is usually provided with a common electrode, and the common electrode is used to transmit a common voltage signal in a display stage. In the existing large-size display products, such as large-size vehicle display devices, the common electrode usually adopts a whole-surface structure, that is, the common electrode is embodied as a whole-surface planar electrode. The phenomenon of non-uniform common voltages in different regions, for example, there is a phenomenon that the common voltages in the middle region and the edge region of the common electrode are quite different, thus causing problems such as display afterimage in the display device.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a display module and a display device, in which the common electrode is divided into a plurality of common electrode blocks, and the independent control of different common electrode blocks is realized, which is beneficial to improve the problem of uneven voltage of each common electrode block. At the same time, the second signal line is multiplexed with the detection signal line, which is also beneficial to realize a narrow frame design.

In a first aspect, the present application provides a display module, which is provided with a display area and a non-display area surrounding the display area, and the non-display area includes a binding area;

The display module includes:

a base substrate, a common electrode disposed on the base substrate and located in the display area, the common electrode comprising a plurality of common electrode blocks;

a first signal line, each of the common electrode blocks is electrically connected to different first parts of the first signal line;

the second signal lines are located in the non-display area, and the second parts of the first signal lines are respectively electrically connected to different second signal lines;

a control chip, located in the binding area, and each of the second signal lines is electrically connected to the control chip;

The detection signal line is located in the non-display area, and the second signal line multiplexes the detection signal line.

In a second aspect, the present application further provides a display device including the display module provided by the present application.

Compared with the prior art, the display module and the display device provided by the present invention at least achieve the following beneficial effects:

In the display module and the display device provided by the present application, the common electrode is divided into a plurality of common electrode blocks, each common electrode block is electrically connected to the first part of a different first signal line, and the first part of each first signal line is electrically connected. The second parts are respectively connected with different second signal lines, and the second signal lines are respectively electrically connected with the control chip. In this way, the control chip can respectively provide corresponding common voltage signals to different electrode blocks through the second signal line and the first signal line, and the common voltage signals provided to each common electrode block are individually controllable, so , in the display stage, the purpose of providing the same common voltage signal to each common electrode block can be achieved through the control of the control chip, so that the common voltage on each common electrode block remains the same, which is conducive to improving the display module and display device. The uniformity of the common voltage signal on the common electrode block improves the problem of display image sticking caused by different common voltage signals in different regions in the prior art, thereby helping to improve the display effect of the display module and the display device. In addition, in the display module and the display device provided by the present application, the second signal line is multiplexed with the detection signal line in the non-display area, and there is no need to separately introduce the second signal line into the display module and the display device, avoiding the need for The introduction of the second signal line occupies the area of the non-display area of the display module and the display device, so it is also beneficial to realize the narrow frame design of the display module and the display device.

Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

1 is a top view of a display module provided in the prior art;

FIG. 2 shows a top view of the display module provided by the embodiment of the present application;

FIG. 3 is a schematic diagram showing a connection of common electrode blocks in the display module provided by the embodiment of the present application;

FIG. 4 shows another connection schematic diagram of the common electrode block in the display module provided by the embodiment of the present application;

FIG. 5 shows a schematic diagram of a connection between the first switch unit and the second signal line in FIG. 4;

FIG. 6 is a schematic diagram showing a connection of common electrode blocks in the display module provided by the embodiment of the present application;

FIG. 7 shows another connection schematic diagram of the common electrode block in the display module provided by the embodiment of the present application;

FIG. 8 is a schematic diagram showing a connection between the second switch unit and the second signal line in FIG. 7;

FIG. 9 is a structural diagram of a display device provided by an embodiment of the present application.

Detailed ways

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

In all examples shown and discussed herein, any specific values should be construed as illustrative only and not limiting. Accordingly, other instances of the exemplary embodiment may have different values.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

FIG. 1 is a top view of a display module provided in the prior art. The top view shows a situation in which the common electrode 401 in the display module 400 is a full-surface common electrode. The full-surface common electrode 401 The edge region of 1 is electrically connected to the common voltage signal line 402 by means of punching holes, and the common voltage signal line is then connected to the control chip. When the display module is a large-sized display module, due to the large size of the common electrode 401, in the display stage, it is easy to cause different common voltages corresponding to different areas of the common electrode, such as the central area of the common electrode and the There is a big difference in the common voltage in the edge area, that is, the phenomenon that the common voltage in different areas is not uniform, which leads to problems such as display afterimage during the display process of the display module, which affects the display effect of the display module.

In view of this, the present invention provides a display module and a display device, in which the common electrode is divided into a plurality of common electrode blocks, and the independent control of different common electrode blocks is realized, which is beneficial to improve the problem of uneven voltage of each common electrode block. At the same time, the second signal line is multiplexed with the detection signal line, which is also beneficial to realize a narrow frame design.

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

FIG. 2 shows a top view of the display module provided by the embodiment of the present application, and FIG. 3 is a schematic diagram showing the connection of common electrode blocks in the display module provided by the embodiment of the present application. Please refer to FIG. 2 and 3, the present application provides a display module 100, which is provided with a display area 10 and a non-display area 70 surrounding the display area 10, and the non-display area 70 includes a binding area 73;

The display module 100 includes:

a base substrate 101, which is disposed on the base substrate 101 and is located in the common electrode 20 of the display area 10, the common electrode 20 includes a plurality of common electrode blocks 21;

a first signal line 31, each of the common electrode blocks 21 is electrically connected to a first part of a different first signal line 31;

The second signal lines 32 are located in the non-display area 70, and the second portions of the first signal lines 31 are electrically connected to different second signal lines 32 respectively;

The control chip 90 is located in the binding area 73, and each of the second signal lines 32 is electrically connected to the control chip 90 respectively;

The detection signal line 40 is located in the non-display area 70 , and the second signal line 32 multiplexes the detection signal line 40 .

It should be noted that FIG. 2 only shows a schematic top view of the display module 100 , and shows a relative positional relationship between the display area 10 , the non-display area 70 and the binding area 73 , and does not represent the display area. 10. The actual size of the non-display area 70 and the binding area 73 . In addition, FIG. 3 only takes the common electrode 20 including 6 common electrode blocks 21 as an example to illustrate the connection relationship of the common electrode blocks 21. In some other embodiments of the present application, the actual number of the common electrode blocks 21 may also be based on The actual needs are flexibly set, which is not specifically limited in this application. In addition, the size and shape of the common electrode block 21 are only for illustration. In some other embodiments of the present application, the size of the common electrode block 21 can be set according to the actual situation, and the common electrode block 21 can also be designed in other shapes. The common electrode block 21 shown in FIG. 3 includes two shapes, one is a conventional rectangular structure, and the other is a special-shaped structure (the two common electrode blocks 21 located in the upper left area and the upper right area in FIG. 3 ), namely The common electrode block 21 includes an arc-shaped curve, and this structure is suitable for the case where the corner area of the display module 100 is irregular.

Specifically, referring to FIG. 2 and FIG. 3 , in the display module 100 provided by the present application, the common electrode 20 is divided into a plurality of common electrode blocks 21 , and each common electrode block 21 is connected to a different first signal line 31 respectively. The first parts of the first signal lines 31 are electrically connected to each other, and the second parts of the first signal lines 31 are respectively connected to different second signal lines 32 , and the second signal lines 32 are respectively electrically connected to the control chip 90 . In this way, through the second signal line 32 and the first signal line 31, the control chip 90 can respectively provide corresponding common voltage signals to different electrode blocks, and the common voltage signals provided to each common electrode block 21 are independent Controllable, in this way, in the display stage, through the control of the control chip 90, the purpose of providing the same common voltage signal to each common electrode block 21 can be achieved, so that the common voltage on each common electrode block 21 remains the same. It is beneficial to improve the uniformity of the common voltage signal on the common electrode block 21 in the display module 100, and to improve the problem of display afterimage caused by the non-uniformity of the common voltage signal in different areas in the prior art, thereby helping to improve the performance of the display module 100. display effect. In addition, in the display module 100 provided in the present application, the second signal line 32 is multiplexed with the detection signal line 40 of the non-display area 70 , and there is no need to separately introduce the second signal line 32 into the display module 100 and the display device. , avoids the introduction of the second signal line 32 to occupy the area of the display module 100 and the non-display area 70 of the display device, and thus is also beneficial to realize the narrow frame design of the display module 100 .

It should be noted that, during the manufacturing process of the display module 100, the light emission of the display module 100 will be detected. For example, the display module 100 will be detected (VT test) before the binding area 73 is bound to the control chip 90. , a detection signal line 40 is set in the display module 100 to transmit the same voltage signal to the pixels in the display module 100 in this detection stage, and whether the display module 100 emits light normally is judged by observing the light emission of the sub-pixels. In addition, the process of detecting the display module 100 is also included after binding the control chip 90. At this time, the detection signal lines 40 are electrically connected to different common electrode blocks 21 respectively, and the control chip 90 can pass the detection signal lines. 40 individually sends voltage signals to different common electrode blocks 21 . That is to say, the detection signal line 40 is a signal line that will be used in the detection stage of the display module 100 . In the present application, the detection signal line 40 is multiplexed into the second signal line 32 , and there is no need to separately introduce the first signal line into the display module 100 . For the two signal lines 32 , the existing detection signal lines 40 can be reused, which is beneficial to realize the narrow frame design of the display module 100 .

In an optional embodiment of the present invention, referring to FIG. 3 , the common electrode block 21 includes a first common electrode block 211 and a second common electrode block 212 , and the first common electrode block 211 inputs a first voltage , the second common electrode block 212 inputs a second voltage, and the first voltage and the second voltage are not equal.

Specifically, referring to FIG. 3 , the common electrode 20 may include two types of common electrode blocks 21 with different areas, namely a first common electrode block 211 and a second common electrode block 212 . The present application covers the first common electrode blocks with different areas. 211 and the second common electrode block 212 input unequal first voltage and second voltage respectively, so that the actual voltages generated by the first common electrode block 211 and the second common electrode block 212 with different areas are equal, so as to realize The separate control of the common electrode blocks 21 in different regions is beneficial to balance the common voltages generated on the common electrode blocks 21 in different regions, and balance the common voltages generated by the common electrode blocks 21 in the display module 100, thereby facilitating the improvement of The uniformity of the common voltage in the display module 100 can improve the problem of display afterimage caused by the non-uniform common voltage in the prior art, and thus is beneficial to improve the display effect of the display module 100 .

In an optional embodiment of the present invention, please continue to refer to FIG. 3 , the non-display area 70 further includes two first frame areas 71 disposed opposite to each other, and a first frame area 71 adjacent to the first frame area 71 . A second border area 72, the second border area 72 is disposed opposite to the binding area 73;

The second signal line 32 is disposed around the display area 10 , and the first signal line 31 is electrically connected to a portion of the second signal line 32 located in the first frame area 71 ;

The first signal lines 31 extend along the first direction X and are arranged along the second direction Y, and the first direction X and the second direction Y intersect.

Specifically, please continue to refer to FIG. 3 , the same second signal line 32 is disposed at least in the second frame area 72 and the two first frame areas 71 , and extends to the binding area 73 to be electrically connected to the control chip 90 , so that each first frame area 73 is electrically connected to the control chip 90 . The two signal lines 32 and the control chip 90 together surround the display area 10 . The first signal lines 31 electrically connected to each of the common electrode blocks 21 extend along the first direction X, and after extending to the first frame region 71 , are respectively electrically connected to the second signal lines 32 located in the first frame region 71 . In this way, after the control chip 90 sends a common voltage signal to a second signal line 32 , the common voltage signal will be transmitted to the first signal line 31 through the second signal line 32 , and then transmitted to be electrically connected to the first signal line 31 . In the common electrode block 21, the process of transmitting the common voltage signal to the common electrode block 21 is realized. In this embodiment, each common electrode block 21 is electrically connected to a different first signal line 31 respectively, and each first signal line 31 corresponds to a different second signal line 32 respectively. The signal line 31 and the second signal line 32 are electrically connected to the common electrode block 21, so that individual control of the common voltage received by the common electrode block 21 can be realized. The size of the common voltage signal sent to different common electrode blocks 21 can be flexibly adjusted, so that the common voltages formed by the common electrode blocks 21 in different regions of the entire display module 100 are the same or approximately the same , in order to improve the uniformity of the common voltage in each area of the display module 100 , improve the problem of display afterimage in the prior art, and further help to improve the display effect of the display module 100 .

On the basis of the embodiment shown in FIG. 3 , in order to realize the independent control of the common electrode block 21 by the control chip 90 and realize the multiplexing of the second signal line 32 and the detection signal line 40 , optionally, the non-display area 70 is also provided with a plurality of first switch units 51, and the first switch units 51 include a control terminal, a first terminal and a second terminal, for example, please refer to FIG. 4 and FIG. 5;

The non-display area 70 further includes a control line K, the control end of the first switch unit 51 is electrically connected to the control line K, and the first ends of the different first switch units 51 correspond to the power lines. Different second signal lines 32 are connected, and the connection point between the first switch unit 51 and the second signal line 32 is located in the second frame region 72 .

4 shows another connection diagram of the common electrode block 21 in the display module 100 provided by the embodiment of the present application, and FIG. 5 shows the connection between the first switch unit 51 and the second signal line 32 in FIG. 4 . A schematic diagram of connection, please continue to refer to FIG. 4 and FIG. 5, the present application introduces a plurality of first switch units 51 in the non-display area of the display module 100, and the control terminals of each first switch unit 51 are respectively connected to the same control The first end of the line K is electrically connected to the second signal line 32 in a one-to-one correspondence, and the second end is used to connect to the data line D in the display module 100 for providing data signals for the sub-pixels. In the detection stage of the display module 100 (in the detection stage, the control chip 90 has not yet been bound in the binding area 73 ), a control signal is sent to each of the first switch units 51 through the control line K to turn on each of the first switch units 51 At this time, each second signal line 32 (ie, the detection signal line 40 ) is connected together, receives the same detection signal and transmits it to the data line D, and the detection result can be judged by observing the display of the display module 100 . After binding the display chip, in the detection stage and the display stage of the display module 100, a control signal line is sent to each first switch unit 51 through the control line K, so that each first switch unit 51 is turned off. At this time, each second switch unit 51 is turned off. The signal lines 32 are not connected to each other. Since each second signal line 32 is electrically connected to a common electrode block 21 through a first signal line 31 respectively, the driving chip can pass the second signal line 32 and the first signal line 31. The common voltage signals are sent to different common electrode blocks 21 separately, thereby helping to ensure that the common voltages generated by the common electrode blocks 21 in different areas in the display module 100 are the same or similar, thus helping to improve the display module 100. The uniformity of the common voltage in each region can improve the problem of display afterimage in the prior art, which is beneficial to improve the display effect of the display module 100 .

It should be noted that the first switch unit 51 in the present application can be embodied as a transistor, for example, it can be a P-type transistor at the same time, or an N-type transistor at the same time. The P-type transistor is turned on under the control of a low-level signal, and the high-voltage It is turned off under the control of the level signal; the N-type transistor is turned on under the control of the high level signal, and turned off under the control of the low level signal.

In an optional embodiment of the present invention, FIG. 6 shows a schematic diagram of the connection of the common electrode block 21 in the display module 100 provided by the embodiment of the present application. The two ends of the first signal line 31 are respectively It forms an electrical connection with two line segments located in the first frame region 71 in the same second signal line 32 .

Specifically, please continue to refer to FIG. 6 , the second signal line 32 includes at least three line segments, and the three line segments are located in the second frame area 72 and the two first frame areas 71 respectively. When the two line segments located in the first frame area 71 of the two signal lines 32 are electrically connected, after the control chip 90 sends a common voltage signal to one of the second signal lines 32 , the common voltage signal will pass through the two first frame areas 71 The second signal lines 32 are respectively transmitted to the same first signal line 31, and then transmitted to the common electrode block 21 electrically connected to the first signal line 31, so as to realize the process of transmitting the common voltage signal to the common electrode block 21, and at the same time It is also beneficial to improve the reliability of public signal transmission.

In an optional embodiment of the present invention, FIG. 7 shows another connection schematic diagram of the common electrode block 21 in the display module 100 provided by the embodiment of the present application, and FIG. 8 shows the second connection diagram in FIG. 7 . A schematic diagram of the connection between the switch unit 52 and the second signal line 32 . Two line segments located in the first frame region 71 in the same second signal line 32 are electrically connected to different first signal lines 31 respectively.

Specifically, referring to FIG. 7 and FIG. 8 , this embodiment shows a situation where the display module 100 includes more common electrode blocks 21 . For example, this embodiment shows a display panel including 12 common electrode blocks 21 in this embodiment. In this case, when the number of common electrode blocks 21 in the display panel is large, that is, when the common electrode 20 needs to be divided into more common electrode blocks 21, and at this time, the number of detection signal lines 40 is less than the number of common electrode blocks , the solution of this embodiment can be used to realize the conductive connection between the common electrode block 21 and the detection signal line 40 . Specifically, two line segments located in the first frame region 71 of the same second signal line 32 can be electrically connected to different first signal lines 31 respectively, so that one second signal line 32 corresponds to two common electrodes In block 21, two line segments located in the first frame area 71 in a second signal line 32 can separately send common voltage signals to different common electrode blocks 21, so as to meet the requirements of a large number of common electrode blocks in the display module 100. The number of signal traces electrically connected to different common electrode blocks 21 is required when the electrode blocks 21 are used.

In an optional embodiment of the present invention, please continue to refer to FIG. 7 and FIG. 8 , the same second signal line 32 is provided with second switch units 52 at intervals, and the second switch units 52 are located in the the second border area 72;

The second switch unit 52 includes a control terminal, a first terminal and a second terminal. The first terminal of the second switch unit 52 and the second terminal of the second switch unit 52 are connected in series to the same terminal. On the second signal line 32 , the control end of the second switch unit 52 is electrically connected to the control line K.

Specifically, referring to FIG. 7 and FIG. 8 , the present application introduces a second switch unit 52 in the second frame area 72 , and the second switch unit 52 is connected in series in the line segment of the second signal line 32 located in the second frame area 72 . One The second signal line 32 corresponds to two second switch units 52 , the control terminals of each second switch unit 52 are respectively electrically connected to the control line K, and both ends of the two second switch units 52 corresponding to the same second signal line 32 They are respectively connected with the line segments of the second signal line 32 located in the second frame area 72 , that is, connected in series between different line segments of the second signal line 32 located in the second frame area 72 . In the display stage of the display module 100 or the detection stage after the control chip 90 is bound, a control signal is sent to the second switch unit 52 through the control line K, so that each second switch unit 52 is turned off. The line segments of the signal line 32 located in the two first border regions 71 are disconnected, and the line segments of the same second signal line 32 located in the two first border regions 71 are respectively electrically connected to different terminals on the control chip 90. In this way, the control chip 90 can send common voltage signals to different common electrode blocks 21 respectively through the line segments located in the two first frame regions 71 in the same second signal line 32 , thereby realizing different control functions for different common electrode blocks 21 .

It should be noted that the second switch unit 52 in this application can be embodied as a transistor, for example, it can be a P-type transistor at the same time, or an N-type transistor at the same time. The P-type transistor is turned on under the control of a low-level signal, and the high-voltage It is turned off under the control of the level signal; the N-type transistor is turned on under the control of the high level signal, and turned off under the control of the low level signal.

Optionally, the transistors included in the first switch unit and the second switch unit in the present application may be of the same type. In this way, the two may be connected to the same control line at the same time, and the first switch unit and the second switch unit may be connected to the same control line through the same control line. The control of the second switch unit is thus beneficial to simplify the number of wires included in the display module, and is also beneficial to realize the narrow frame design of the display module.

In an optional embodiment of the present invention, referring to FIG. 6 and FIG. 7 , the first portion of the first signal line 31 is electrically connected to the common electrode block 21 through a via hole 81 .

Specifically, referring to FIG. 6 and FIG. 7 , in the display module 100 provided by the present application, the common electrode block 21 and the first signal line 31 electrically connected to the common electrode block 21 can be arranged in different layers, so that the common electrode block 21 can be arranged in different layers. The arrangement of the blocks 21 and the arrangement of the first signal lines 31 do not affect each other, and the first signal lines 31 and the corresponding common electrode blocks 21 can be electrically connected through the via holes 81 . Better connection reliability is provided between the first signal line 31 and the corresponding common electrode block 21 .

In an optional embodiment of the present invention, please refer to FIG. 6 and FIG. 7 , the first signal line 31 and the second signal line 32 are disposed in different layers, and the first signal line 31 and the The second signal line 32 is electrically connected through the via hole 82 .

Specifically, please continue to refer to FIG. 6 and FIG. 7 , in the display module 100 provided by the embodiment of the present application, the first signal line 31 extends along the first direction X, and the first signal line 31 is connected to the first frame area. In 71, the second signal line 32 extending along the second direction Y is electrically connected. If the first signal line 31 and the second signal line 32 are arranged in the same layer, the first signal line 31 and the second signal line that is not electrically connected to it are electrically connected. An overlapping area may be formed between 32, resulting in a short circuit between the two. Therefore, when the first signal line 31 and the second signal line 32 are arranged in different layers in the present application, the arrangement and extension of the first signal line 31 The direction and the arrangement and extension direction of the second signal line 32 do not affect each other, and the electrical connection between the corresponding first signal line 31 and the second signal line 32 can be achieved through the via hole 82, thereby effectively avoiding irrelevant first signal lines 31. The phenomenon of forming a short circuit between the first signal line 31 and the second signal line 32 is beneficial to improve the reliability of the control chip 90 sending the common voltage to the common electrode block 21 .

Based on the same inventive concept, the present application further provides a display device 200 . FIG. 9 shows a structural diagram of the display device 200 provided by the embodiment of the present application. Referring to FIG. 9 , the display device 200 includes a display module 100 . The display module 100 is the display module 100 provided by the embodiment of the application. It should be noted that, for the embodiments of the display device 200 provided by the embodiments of the present application, reference may be made to the embodiments of the display module 100 described above, and repeated details will not be repeated. The display device 200 provided in this application can be any product or component with real functions, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.

It should be noted that the display device provided by the present application is especially suitable for a large-sized display device, such as a vehicle-mounted display device and the like.

To sum up, the display module and the display device provided by the present invention at least achieve the following beneficial effects:

In the display module and the display device provided by the present application, the common electrode is divided into a plurality of common electrode blocks, each common electrode block is electrically connected to the first part of a different first signal line, and the first part of each first signal line is electrically connected. The second parts are respectively connected with different second signal lines, and the second signal lines are respectively electrically connected with the control chip. In this way, the control chip can respectively provide corresponding common voltage signals to different electrode blocks through the second signal line and the first signal line, and the common voltage signals provided to each common electrode block are individually controllable, so , in the display stage, the purpose of providing the same common voltage signal to each common electrode block can be achieved through the control of the control chip, so that the common voltage on each common electrode block remains the same, which is conducive to improving the display module and display device. The uniformity of the common voltage signal on the common electrode block improves the problem of display image sticking caused by different common voltage signals in different regions in the prior art, thereby helping to improve the display effect of the display module and the display device. In addition, in the display module and the display device provided by the present application, the second signal line is multiplexed with the detection signal line in the non-display area, and there is no need to separately introduce the second signal line into the display module and the display device, avoiding the need for The introduction of the second signal line occupies the area of the non-display area of the display module and the display device, so it is also beneficial to realize the narrow frame design of the display module and the display device.

Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are provided for illustration only and not for the purpose of limiting the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. A display module, characterized in that, a display area and a non-display area surrounding the display area are provided, and the non-display area includes a binding area; The display module includes: a base substrate, a common electrode disposed on the base substrate and located in the display area, the common electrode comprising a plurality of common electrode blocks; a first signal line, each of the common electrode blocks is electrically connected to different first parts of the first signal line; the second signal lines are located in the non-display area, and the second parts of the first signal lines are respectively electrically connected to different second signal lines; a control chip, located in the binding area, and each of the second signal lines is electrically connected to the control chip; The detection signal line is located in the non-display area, and the second signal line multiplexes the detection signal line. 2. The display module according to claim 1, wherein The common electrode block includes a first common electrode block and a second common electrode block, the first common electrode block is input with a first voltage, the second common electrode block is input with a second voltage, the first voltage and the The second voltages are not equal. 3. The display module according to claim 1, wherein The non-display area further includes two first frame areas arranged oppositely, and a second frame area adjacent to the first frame area, and the second frame area is arranged opposite to the binding area; The second signal line is arranged around the display area, and the first signal line is electrically connected to a portion of the second signal line located in the first frame area; The first signal lines extend along the first direction and are arranged along the second direction, and the first direction and the second direction intersect. 4. The display module according to claim 3, wherein The non-display area is further provided with a plurality of first switch units, and the first switch units include a control terminal, a first terminal and a second terminal; The non-display area further includes a control line, the control end of the first switch unit is electrically connected to the control line, and the first ends of different first switch units are electrically connected to different A second signal line, and the connection point between the first switch unit and the second signal line is located in the second frame area. 5. The display module according to claim 4, wherein Two ends of the first signal line are respectively electrically connected to two line segments located in the first frame region in the same second signal line. 6. The display module according to claim 4, wherein Two line segments located in the first frame region in the same second signal line are respectively electrically connected to different first signal lines. 7. The display module according to claim 6, wherein, Second switch units are arranged on the same second signal line at intervals, and the second switch units are all located in the second frame area; The second switch unit includes a control terminal, a first terminal and a second terminal, and the first terminal of the second switch unit and the second terminal of the second switch unit are connected in series to the same first terminal. On the second signal line, the control end of the second switch unit is electrically connected to the control line. 8. The display module according to claim 1, wherein, The first portion of the first signal line is electrically connected to the common electrode block through a via hole. 9. The display module according to claim 1, wherein, The first signal line and the second signal line are disposed in different layers, and the first signal line and the second signal line are electrically connected through a via hole. 10. A display device, comprising the display module according to any one of claims 1-9.

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