CN111755465A - Display module and display device - Google Patents
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- CN111755465A CN111755465A CN202010621107.3A CN202010621107A CN111755465A CN 111755465 A CN111755465 A CN 111755465A CN 202010621107 A CN202010621107 A CN 202010621107A CN 111755465 A CN111755465 A CN 111755465A
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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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
Technical Field
The invention relates to the technical field of display, in particular to a display module and a display device.
Background
The display industry has been developing over decades, from the CRT (Cathode Ray Tube) era to the liquid crystal era and now to the organic light emitting era. The display industry is closely related to our lives, and display technologies cannot be separated from traditional mobile phones, flat panels, televisions and PCs, to current intelligent wearable devices and VRs.
A display module in the prior art is usually provided with a common electrode, and the common electrode is used for transmitting a common voltage signal in a display stage. In the existing large-size display products, for example, in a large-size vehicle-mounted display device, the common electrode generally adopts a full-surface structure, that is, the common electrode is embodied as a full-surface planar electrode, and due to an excessively large size, a phenomenon that a common voltage is not uniform in different areas on the common electrode is easily caused, for example, a phenomenon that a difference between the common voltage in a middle area and a common voltage in an edge area of the common electrode is large, so that a display device has a problem of display ghost and the like.
Disclosure of Invention
In view of this, the present invention provides a display module and a display device, in which a common electrode is divided into a plurality of common electrode blocks, so that individual control of different common electrode blocks is achieved, and the problem of non-uniform voltage of each common electrode block is improved.
In a first aspect, the application provides a display module, which is provided with a display area and a non-display area surrounding the display area, wherein the non-display area comprises a binding area;
the display module assembly includes:
the substrate base plate is arranged on the substrate base plate and is positioned on a public electrode of the display area, and the public electrode comprises a plurality of public electrode blocks;
the common electrode blocks are electrically connected with different first parts of the first signal lines respectively;
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 region, and each second signal wire is electrically connected with the control chip respectively;
and the detection signal line is positioned in a 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 in the present application.
Compared with the prior art, the display module and the display device provided by the invention at least realize the following beneficial effects:
in the display module assembly and the display device that this application provided, divide into a plurality of public electrode blocks with the public electrode, every public electrode block is connected with the first position electricity of different first signal lines respectively, and the second position of each first signal line is connected different second signal lines respectively, and the second signal line is connected with control chip electricity respectively. Therefore, the control chip can provide corresponding public voltage signals for different electrode blocks through the second signal line and the first signal line respectively, and the public voltage signals provided for each public electrode block are independently controllable, so that the purpose of providing the same public voltage signals for each public electrode block can be realized through the control of the control chip in the display stage, the public voltage on each public electrode block is kept the same, the uniformity of the public voltage signals on the public electrode blocks in the display module and the display device is favorably improved, the problem of display ghost caused by different public voltage signals in different areas in the prior art is improved, and the display effect of the display module and the display device is favorably improved. In addition, in the display module assembly and the display device that this application provided, with the multiplexing of the detection signal line of second signal line and non-display area, need not to reintroduce the second signal line alone in display module assembly and display device, avoided the introduction of second signal line to the area of display module assembly and display device's non-display area occupy, therefore still be favorable to realizing display module assembly and display device's narrow frame design.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
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.
Fig. 1 is a top view of a display module provided in the prior art;
fig. 2 is a top view of a display module according to an embodiment of the disclosure;
fig. 3 is a schematic connection diagram of a common electrode block in a display module according to an embodiment of the present disclosure;
fig. 4 is a schematic connection diagram of a common electrode block in a display module according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram illustrating a connection between the first switch unit and the second signal line in FIG. 4;
fig. 6 is a schematic connection diagram of a common electrode block in a display module according to an embodiment of the present disclosure;
fig. 7 is a schematic connection diagram of a common electrode block in a display module according to an embodiment of the present disclosure;
FIG. 8 is a schematic diagram of 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 according to an embodiment of the present application.
Detailed Description
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 the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present 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 are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a top view of a display module provided in the prior art, which illustrates a case where a common electrode 401 in the display module 400 is a full-surface common electrode, an edge region of the full-surface common electrode 401 is electrically connected to a common voltage signal line 402 by punching, and the common voltage signal line is connected to a control chip. When the display module is a large-sized display module, the common electrode 401 has a large size, and therefore, in the display stage, the common voltages corresponding to different regions of the common electrode are very different, for example, the common voltages in the central region and the edge region of the common electrode are greatly different, that is, the common voltages in different regions are not uniform, which causes the display module to have problems such as display ghosting during the display process, and the like, and 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 a common electrode is divided into a plurality of common electrode blocks, so that individual control of different common electrode blocks is achieved, and the problem of non-uniform voltage of each common electrode block is improved.
The invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 2 is a top view of a display module according to an embodiment of the present disclosure, fig. 3 is a schematic connection diagram of a common electrode block in the display module according to the embodiment of the present disclosure, please refer to fig. 2 and fig. 3, the present disclosure provides a display module 100, which is provided with a display area 10 and a non-display area 70 surrounding the display area 10, wherein the non-display area 70 includes a binding area 73;
the display module 100 includes:
a substrate base plate 101, a common electrode 20 disposed on the substrate base plate 101 and located in the display area 10, wherein the common electrode 20 includes a plurality of common electrode blocks 21;
a control chip 90 located in the bonding region 73, wherein each of the second signal lines 32 is electrically connected to the control chip 90;
a detection signal line 40, the detection signal line 40 being located in a non-display area 70, the second signal line 32 multiplexing 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 position relationship among the display area 10, the non-display area 70, and the bonding area 73, and does not represent actual sizes of the display area 10, the non-display area 70, and the bonding area 73. In addition, fig. 3 only illustrates the connection relationship of the common electrode blocks 21 by taking the common electrode 20 including 6 common electrode blocks 21 as an example, in some other embodiments of the present application, the actual number of the common electrode blocks 21 may also be flexibly set according to actual requirements, which is not specifically limited in the present application. In addition, the size and shape of the common electrode block 21 are also only illustrated, and in some other embodiments of the present application, the size of the common electrode block 21 may be set according to practical use, and the common electrode block 21 may 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 (two common electrode blocks 21 located in the upper left corner region and the upper right corner region in fig. 3), that is, the common electrode block 21 includes an arc-shaped curve, which is suitable for the case that the corner regions of the display module 100 are special-shaped.
Specifically, referring to fig. 2 and fig. 3, in the display module 100 provided in the present application, the common electrode 20 is divided into a plurality of common electrode blocks 21, each common electrode block 21 is electrically connected to a first portion of a different first signal line 31, a second portion of each first signal line 31 is electrically connected to a different second signal line 32, and the second signal lines 32 are electrically connected to the control chip 90. Thus, the control chip 90 can provide corresponding common voltage signals to different electrode blocks through the second signal line 32 and the first signal line 31, and the common voltage signals provided to each common electrode block 21 are individually controllable, so that, in the display stage, the purpose of providing the same common voltage signals to each common electrode block 21 can be achieved through the control of the control chip 90, so that the common voltages on the common electrode blocks 21 are kept the same, thereby being beneficial to improving the uniformity of the common voltage signals on the common electrode blocks 21 in the display module 100, improving the display ghost problem caused by the non-uniform common voltage signals in different areas in the prior art, and being beneficial to improving the display effect of the display module 100. In addition, in the display module 100 provided by the present application, the second signal line 32 and the detection signal line 40 of the non-display area 70 are multiplexed, and the second signal line 32 does not need to be separately introduced into the display module 100 and the display device, so that the occupation of the area of the non-display area 70 of the display module 100 and the display device by the introduction of the second signal line 32 is avoided, and the narrow frame design of the display module 100 is facilitated.
It should be noted that, in the manufacturing process of the display module 100, the light emitting condition of the display module 100 is detected, for example, the display module 100 is detected before the bonding region 73 bonds the control chip 90 (VT test), and the detection signal line 40 is disposed in the display module 100 and used for transmitting the same voltage signal to the pixels in the display module 100 at the detection stage, and determining whether the display module 100 emits light normally by observing the light emitting condition of the sub-pixels. In addition, after the control chip 90 is bound, a process of detecting the display module 100 is also included, at this time, the detection signal lines 40 are electrically connected to different common electrode blocks 21, and the control chip 90 can send voltage signals to different common electrode blocks 21 through the detection signal lines 40. That is to say, the detecting signal line 40 is a signal line that can be used in the detection stage of the display module 100, and the detecting signal line 40 is multiplexed into the second signal line 32 in the present application, without separately introducing the second signal line 32 into the display module 100, and the multiplexing of the existing detecting signal line 40 is enough, thereby being beneficial to realizing the narrow frame design of the display module 100.
In an alternative 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, 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, which are a first common electrode block 211 and a second common electrode block 212, and the present application inputs unequal first voltage and second voltage to the first common electrode block 211 and the second common electrode block 212 with different areas, so that the voltages actually generated by the first common electrode block 211 and the second common electrode block 212 with different areas are equal, thereby implementing respective control of the common electrode blocks 21 in different areas, facilitating balancing the common voltages generated on the common electrode blocks 21 in different areas, balancing the common voltages generated by the common electrode blocks 21 in the display module 100, facilitating improvement of uniformity of the common voltages in the display module 100, and improving a problem of display ghost caused by non-uniform common voltages in the prior art, thereby facilitating to improve the display effect of the display module 100.
In an alternative 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 second frame area 72 adjacent to the first frame areas 71, where the second frame area 72 is disposed opposite to the binding area 73;
the second signal line 32 is disposed around the display region 10, and the first signal line 31 is electrically connected to a portion of the second signal line 32 located in the first frame region 71;
the first signal lines 31 extend in a first direction X and are arranged in a second direction Y, and the first direction X and the second direction Y intersect.
Specifically, with continued reference 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 bonding area 73 to be electrically connected to the control chip 90, so that the second signal lines 32 and the control chip 90 together surround the display area 10. The first signal lines 31 electrically connected to the common electrode blocks 21 extend in the first direction X, extend to the first frame area 71, and are electrically connected to the second signal lines 32 located in the first frame area 71. In this way, after the control chip 90 sends the common voltage signal to one second signal line 32, the common voltage signal is transmitted to the first signal line 31 through the second signal line 32, and then transmitted to the common electrode block 21 electrically connected to the first signal line 31, so that 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, each first signal line 31 corresponds to a different second signal line 32, so that the control chip 90 is electrically connected to the common electrode block 21 through the first signal line 31 and the second signal line 32, the common electrode block 21 can be controlled independently of the common voltage received, and according to the shape and area of the common electrode 20 and the distance from the control chip 90, the magnitude of the common voltage signal transmitted to the different common electrode blocks 21 can be flexibly adjusted, so that the common voltage formed by the common electrode blocks 21 of different regions in the whole display module 100 is the same or approximately the same, the uniformity of the common voltage in each area in the display module 100 is improved, the problem of display ghost shadow in the prior art is solved, and the display effect of the display module 100 is improved.
On the basis of the embodiment shown in fig. 3, in order to realize the individual control of the common electrode block 21 by the control chip 90 and the multiplexing of the second signal line 32 and the detection signal line 40, optionally, the non-display area 70 is further provided with a plurality of first switch units 51, and each first switch unit 51 includes a control terminal, a first terminal, and a second terminal, for example, please refer to fig. 4 and 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, the first ends of the different first switch units 51 are correspondingly electrically connected to the different second signal lines 32, and the connection point of the first switch unit 51 and the second signal line 32 is located in the second frame area 72.
Fig. 4 is another schematic connection diagram of the common electrode block 21 in the display module 100 according to the embodiment of the present disclosure, fig. 5 is a schematic connection diagram of the first switch units 51 and the second signal lines 32 in fig. 4, please refer to fig. 4 and fig. 5, in the present disclosure, a plurality of first switch units 51 are introduced into the non-display area in the display module 100, control ends of the first switch units 51 are respectively connected to the same control line K, first ends of the first switch units are respectively electrically connected to the second signal lines 32 in a one-to-one correspondence manner, and second ends of the first switch units are used for connecting the data lines D for providing data signals for the sub-pixels in the display module 100. In the detection stage of the display module 100 (in the detection stage, the control chip 90 is not bound in the binding region 73 yet), a control signal is sent to each first switch unit 51 through the control line K to turn on each first switch unit 51, at this time, the second signal lines 32 (i.e., the detection signal lines 40) are connected together to receive the same detection signal and transmit the same detection signal to the data lines D, and the detection result can be determined by observing the display condition of the display module 100. After the display chip is bound, in the detection stage and the display stage of the display module 100, the control signal line is sent to each first switch unit 51 through the control line K to turn off each first switch unit 51, at this time, each second signal line 32 is not connected with each other, since each of the second signal lines 32 is electrically connected to one of the common electrode blocks 21 through one of the first signal lines 31, therefore, the driving chip can separately transmit the common voltage signal to the different common electrode blocks 21 through the second signal line 32 and the first signal line 31, thereby being beneficial to ensure that the common voltages generated by the common electrode blocks 21 in different areas of the display module 100 are the same or similar, therefore, the uniformity of the common voltage in each region of the display module 100 can be improved, the problem of display ghost in the prior art can be solved, and the display effect of the display module 100 can be improved.
It should be noted that the first switch unit 51 in the present application may be embodied as a transistor, for example, a P-type transistor or an N-type transistor, where the P-type transistor is turned on under the control of a low level signal and turned off under the control of a high level signal; the N-type transistor is switched on under the control of a high level signal and switched off under the control of a low level signal.
In an alternative embodiment of the invention, fig. 6 is a schematic connection diagram of the common electrode block 21 in the display module 100 according to the embodiment of the present application, and two ends of the first signal line 31 are electrically connected to two line segments of the same second signal line 32 located in the first frame area 71.
Specifically, please refer to fig. 6 again, the second signal line 32 at least includes three line segments, the three line segments are respectively located in the second frame area 72 and the two first frame areas 71, when two ends of the same first signal line 31 are electrically connected to two line segments of the second signal line 32 located in the first frame areas 71, respectively, after the control chip 90 sends a common voltage signal to one second signal line 32, the common voltage signal is respectively transmitted to the same first signal line 31 through the second signal lines 32 located in the two first frame areas 71, and then transmitted to the common electrode block 21 electrically connected to the first signal line 31, so as to implement a process of transmitting the common voltage signal to the common electrode block 21, and simultaneously, facilitate to improve the reliability of common signal transmission.
In an alternative embodiment of the invention, fig. 7 is another schematic connection diagram of the common electrode block 21 in the display module 100 provided in the embodiment of the present application, and fig. 8 is a schematic connection diagram of the second switch unit 52 and the second signal line 32 in fig. 7, where two line segments of the same second signal line 32 located in the first frame area 71 are electrically connected to different first signal lines 31, respectively.
Specifically, referring to fig. 7 and 8, this embodiment shows a case where the display module 100 includes more common electrode blocks 21, for example, this embodiment shows a case where the display panel includes 12 common electrode blocks 21, when the number of the 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 the detection signal lines 40 is less than the number of the common electrode blocks, the scheme of this embodiment may be adopted to realize the conductive connection between the common electrode blocks 21 and the detection signal lines 40. Specifically, two line segments of the same second signal line 32 located in the first frame area 71 may be electrically connected to different first signal lines 31, so that, equivalently, one second signal line 32 corresponds to two common electrode blocks 21, the two line segments of the one second signal line 32 located in the first frame area 71 may respectively send common voltage signals to different common electrode blocks 21 individually, thereby meeting the requirement of the number of signal traces electrically connected to different common electrode blocks 21 when there are a large number of common electrode blocks 21 in the display module 100.
In an alternative embodiment of the present invention, please refer to fig. 7 and fig. 8, second switch units 52 are disposed on the same second signal line 32 at intervals, and the second switch units 52 are all located in the second frame 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 second signal line 32, and the control terminal of the second switch unit 52 is electrically connected to the control line K.
Specifically, referring to fig. 7 and 8, in the present application, a second switch unit 52 is introduced into the second frame area 72, the second switch unit 52 is connected in series in a line segment of the second signal line 32 located in the second frame area 72, one second signal line 32 corresponds to two second switch units 52, a control end of each second switch unit 52 is electrically connected to the control line K, and two ends of two second switch units 52 corresponding to the same second signal line 32 are connected to a line segment 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, the 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, which is equivalent to disconnecting the line segments located in the two first frame areas 71 in the same second signal line 32, and the line segments located in the two first frame areas 71 in the same second signal line 32 are respectively electrically connected to different terminals on the control chip 90, so that the control chip 90 can send the common voltage signal to different common electrode blocks 21 through the line segments located in the two first frame areas 71 in the same second signal line 32, thereby realizing different control functions on different common electrode blocks 21.
It should be noted that the second switch unit 52 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 the low level signal, and is turned off under the control of the high level signal; the N-type transistor is switched on under the control of a high level signal and switched off under the control of a low level signal.
Optionally, the types of the transistors included in the first switch unit and the second switch unit in the present application may be the same, so that the first switch unit and the second switch unit may be simultaneously connected to the same control line, and the control of the first switch unit and the second switch unit may be realized through the same control line, thereby facilitating simplification of the number of routing lines included in the display module and also facilitating realization of the narrow frame design of the display module.
In an alternative embodiment of the present invention, referring to fig. 6 and 7, the first portion of the first signal line 31 is electrically connected to the common electrode block 21 through a via 81.
Specifically, referring to fig. 6 and 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 may be disposed in different layers, such that the arrangement of the common electrode block 21 and the arrangement of the first signal line 31 are not affected by each other, and the first signal line 31 and the common electrode block 21 corresponding thereto can be electrically connected through the via 81, and the first signal line 31 and the corresponding common electrode block 21 have better connection reliability by the via connection.
In an alternative embodiment of the present invention, referring to fig. 6 and 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 second signal line 32 are electrically connected through a via 82.
Specifically, with continued reference to fig. 6 and 7, in the display module 100 provided in the embodiment of the present application, the first signal line 31 extends along the first direction X, and the first signal line 31 is electrically connected to the second signal line 32 extending along the second direction Y in the first frame region 71, if the first signal line 31 and the second signal line 32 are disposed in the same layer, an overlapping region may be formed between the first signal line 31 and the second signal line 32 that is not electrically connected thereto, so as to cause a short circuit therebetween, therefore, when the first signal line 31 and the second signal line 32 are disposed in different layers, the arrangement and the extending direction of the first signal line 31 and the arrangement and the extending direction of the second signal line 32 are not affected by each other, and the electrical connection between the corresponding first signal line 31 and the second signal line 32 is achieved through the via 82, so as to effectively avoid the short circuit between the unrelated first signal line 31 and the second signal line 32, thereby contributing to the improvement of the reliability of the control chip 90 in transmitting 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 is a structural diagram of the display device 200 provided in the embodiment of the present application, referring to fig. 9, the display device 200 includes a display module 100, and the display module 100 is the display module 100 provided in the embodiment of the present application. It should be noted that, in the embodiment of the display device 200 provided in the present application, reference may be made to the embodiment of the display module 100, and repeated descriptions are omitted. The display device 200 provided by the present application may be: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
It should be noted that the display device provided by the present application is particularly suitable for large-sized display devices, such as vehicle-mounted display devices.
In summary, the display module and the display device provided by the invention at least achieve the following beneficial effects:
in the display module assembly and the display device that this application provided, divide into a plurality of public electrode blocks with the public electrode, every public electrode block is connected with the first position electricity of different first signal lines respectively, and the second position of each first signal line is connected different second signal lines respectively, and the second signal line is connected with control chip electricity respectively. Therefore, the control chip can provide corresponding public voltage signals for different electrode blocks through the second signal line and the first signal line respectively, and the public voltage signals provided for each public electrode block are independently controllable, so that the purpose of providing the same public voltage signals for each public electrode block can be realized through the control of the control chip in the display stage, the public voltage on each public electrode block is kept the same, the uniformity of the public voltage signals on the public electrode blocks in the display module and the display device is favorably improved, the problem of display ghost caused by different public voltage signals in different areas in the prior art is improved, and the display effect of the display module and the display device is favorably improved. In addition, in the display module assembly and the display device that this application provided, with the multiplexing of the detection signal line of second signal line and non-display area, need not to reintroduce the second signal line alone in display module assembly and display device, avoided the introduction of second signal line to the area of display module assembly and display device's non-display area occupy, therefore still be favorable to realizing display module assembly and display device's narrow frame design.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A display module is characterized by being provided with a display area and a non-display area surrounding the display area, wherein the non-display area comprises a binding area;
the display module assembly includes:
the substrate base plate is arranged on the substrate base plate and is positioned on a public electrode of the display area, and the public electrode comprises a plurality of public electrode blocks;
the common electrode blocks are electrically connected with different first parts of the first signal lines respectively;
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 region, and each second signal wire is electrically connected with the control chip respectively;
and the detection signal line is positioned in a non-display area, and the second signal line multiplexes the detection signal line.
2. The display module of claim 1,
the common electrode block comprises a first common electrode block and a second common electrode block, a first voltage is input into the first common electrode block, a second voltage is input into the second common electrode block, and the first voltage is not equal to the second voltage.
3. The display module of claim 1,
the non-display area also comprises two first frame areas which are oppositely arranged and a second frame area which is adjacent to the first frame areas, and the second frame area is oppositely arranged with the binding area;
the second signal line is arranged around the display area, and the first signal line is electrically connected with the part, positioned in the first frame area, of the second signal line;
the first signal lines extend along a first direction and are arranged along a second direction, and the first direction and the second direction are intersected.
4. The display module of claim 3,
the non-display area is also provided with a plurality of first switch units, and each first switch unit comprises a control end, a first end and a second end;
the non-display area further comprises a control line, the control end of the first switch unit is electrically connected with the control line, the first ends of the different first switch units are correspondingly electrically connected with the different second signal lines, and the connection point of the first switch unit and the second signal line is located in the second frame area.
5. The display module of claim 4,
two ends of the first signal wire are electrically connected with two wire segments in the first frame area in the same second signal wire respectively.
6. The display module of claim 4,
two line segments in the same second signal line and located in the first frame area are electrically connected with different first signal lines respectively.
7. The display module of claim 6,
second switch units are arranged on the same second signal line at intervals, and the second switch units are located in the second frame area;
the second switch unit comprises a control end, a first end and a second end, the first end of the second switch unit and the second end of the second switch unit are connected in series on the same second signal line, and the control end of the second switch unit is electrically connected with the control line.
8. The display module of claim 1,
the first portion of the first signal line is electrically connected with the common electrode block through a via hole.
9. The display module of claim 1,
the first signal line and the second signal line are arranged in different layers and are electrically connected through a through hole.
10. A display device comprising the display module of any one of claims 1-9.
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