WO2017045339A1

WO2017045339A1 - Array substrate, display panel and display device

Info

Publication number: WO2017045339A1
Application number: PCT/CN2016/073281
Authority: WO
Inventors: 陈小川; 王磊; 许睿; 杨明; 卢鹏程; 王海生; 李昌峰
Original assignee: 京东方科技集团股份有限公司; 北京京东方光电科技有限公司
Priority date: 2015-09-15
Filing date: 2016-02-03
Publication date: 2017-03-23
Also published as: CN105093725A; CN105093725B

Abstract

An array substrate, a display panel and a display device. The array substrate comprises a base substrate (101); the base substrate (101) comprises a display region (1011) and a peripheral region (1012) surrounding the display region (1011); a pixel array structure (120) is arranged in the display region (1011); at least one touch electrode (111) is arranged in the peripheral region (1012); the at least one touch electrode (111) is arranged along the edge of the base substrate (101). The touch electrode is arranged in the peripheral region of the array substrate so that physical keys can be replaced, thus reducing the border width of a display device using the array substrate.

Description

Array substrate, display panel, and display device

Technical field

At least one embodiment of the present invention is directed to an array substrate, a display panel, and a display device.

Background technique

With the continuous development of the display device, especially the mobile display device market, the usual physical buttons are constantly replaced by other forms in these devices, and people turn to the lighter, thinner, more sensitive and more fashionable virtual buttons to realize the display device. Control and input. Moreover, as users demand more and more narrow frames for display devices, almost all mobile phones and tablets are pursuing narrow borders, thereby increasing the screen ratio and improving the user experience. However, a typical mobile display device still has physical buttons on the upper side and/or the left side and/or the right side of the bezel, such as a volume adjustment button and a switch button. The large volume of these physical buttons makes it difficult for these display devices to further reduce the width of the bezel.

Summary of the invention

At least one embodiment of the present invention provides an array substrate, a display panel, and a display device. The array substrate is formed in the peripheral region by the touch substrate, so that the physical button can be replaced, thereby reducing the frame width of the display device to which the array substrate is applied.

For example, at least one embodiment of the present invention provides an array substrate including a substrate substrate including a display area and a peripheral area surrounding the display area, wherein the display area is provided with a pixel array structure, At least one touch electrode is disposed in the peripheral area, and the at least one touch electrode is disposed along an edge of the base substrate.

For example, in an array substrate according to an embodiment of the invention, an edge of the at least one touch electrode is flush with an edge of the base substrate.

For example, in an array substrate according to an embodiment of the invention, the pixel array structure includes at least one layer of conductive structures, and the at least one touch electrode is disposed in the same layer as any one of the at least one layer of conductive structures.

For example, in an array substrate according to an embodiment of the invention, the conductive structure includes any one of a pixel electrode layer, a common electrode layer, a gate layer, and a source/drain layer.

For example, in an array substrate provided by an embodiment of the invention, the pixel array structure includes a plurality of The layered conductive structure, the touch electrode includes a plurality of sub-touch electrodes, wherein the plurality of sub-touch electrodes are respectively disposed in the same layer as any one of the plurality of conductive structures, and the plurality of sub-touch electrodes are in contact with each other Electrical connection.

For example, in an array substrate according to an embodiment of the invention, the conductive structure includes a plurality of pixel electrode layers, a common electrode layer, a gate layer, and a source/drain layer.

For example, in an array substrate according to an embodiment of the invention, the touch electrodes are plural, and the plurality of touch electrodes are disposed in the same layer or in different layers.

For example, in an array substrate according to an embodiment of the present invention, at least one of the touch electrodes is provided with a first conductive particle layer, and the first conductive particle layer is disposed on a peripheral region of the base substrate and corresponds to The touch electrodes are electrically connected.

For example, an array substrate provided by an embodiment of the present invention further includes at least one wire electrically connected to the at least one touch electrode for input/output signals, respectively.

For example, in an array substrate according to an embodiment of the invention, the pixel array structure includes at least one layer of conductive structures, and the at least one wire is disposed in the same layer as at least one of the conductive structures.

For example, in an array substrate according to an embodiment of the invention, the conductive structure includes at least one of a pixel electrode layer, a common electrode layer, a gate layer, and a source/drain layer.

For example, in an array substrate according to an embodiment of the invention, the at least one wire is connected to the touch detection chip.

For example, in an array substrate according to an embodiment of the present invention, the at least one touch electrode is a self-capacitance electrode, or the touch electrodes are multiple, and the plurality of touch electrodes include a touch drive electrode and a touch. Induction electrode.

At least one embodiment of the present invention provides a display panel comprising an array substrate and a counter substrate of a pair of boxes, wherein the array substrate is any one of the array substrates described above.

For example, the display panel according to an embodiment of the present invention further includes a second conductive particle layer disposed between the at least one touch electrode and the opposite substrate on the array substrate, wherein the second conductive particle layer is disposed at The at least one touch electrode of the peripheral region is electrically connected to and correspondingly corresponding thereto.

For example, in a display panel according to an embodiment of the invention, the second conductive particle layer comprises an anisotropic conductive paste.

At least one embodiment of the present invention also provides a display device including any of the above display panels.

For example, a display device according to an embodiment of the present invention further includes a backboard, and the backplane includes a backplane. And a plurality of side plates disposed at a periphery of the bottom plate, and a hollow structure is disposed at a position of the side plate corresponding to the at least one touch electrode.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below. It is obvious that the drawings in the following description relate only to some embodiments of the present invention, and are not intended to limit the present invention. .

1 is a schematic plan view showing a position where a touch electrode is disposed in an array substrate according to an embodiment of the present invention;

2 is a schematic plan view of an array substrate according to an embodiment of the invention;

3 is a partial cross-sectional view of the array substrate taken along line A-A' of FIG. 2 according to an embodiment of the present invention;

4 is a partial cross-sectional view of another array substrate taken along line A-A' of FIG. 2 according to an embodiment of the present invention;

FIG. 5 is a partial cross-sectional view of another array substrate taken along line A-A' of FIG. 2 according to an embodiment of the present invention; FIG.

FIG. 6 is a partial cross-sectional view of another array substrate taken along line A-A' of FIG. 2 according to an embodiment of the present invention; FIG.

FIG. 7 is a partial cross-sectional view of another array substrate taken along line A-A' of FIG. 2 according to an embodiment of the present invention; FIG.

FIG. 8 is a partial cross-sectional view of another array substrate taken along line A-A' of FIG. 2 according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic plan view of another array substrate according to an embodiment of the invention;

FIG. 10 is a partial cross-sectional view of another array substrate taken along line A-A' of FIG. 9 according to an embodiment of the present invention; FIG.

FIG. 11 is a partial cross-sectional view of another array substrate taken along line B-B' of FIG. 9 according to an embodiment of the present invention; FIG.

FIG. 12 is a partial cross-sectional view of the display panel taken along line A-A' of FIG. 9 according to an embodiment of the present invention; FIG.

FIG. 13 is a view showing another display panel in the direction of A-A' in FIG. 9 according to an embodiment of the present invention. Partial profile diagram;

FIG. 14 is a partial cross-sectional view of another display panel taken along line B-B' of FIG. 9 according to an embodiment of the present invention; FIG.

FIG. 15 is a schematic structural diagram of a backplane of a display device according to an embodiment of the invention.

Reference mark:

101-substrate substrate; 1011-display area; 1012-peripheral area; 102-gate/conductive structure; 103-gate insulating layer; 104-active layer; 105-source/conductive structure; 106-drain/ Conductive structure; 107-passivation layer; 108-common electrode/conductive structure; 109-pixel electrode/anode/conductive structure; 110-insulation layer; 111-touch electrode; 1111-first touch electrode; Touch electrode; 1113-third touch electrode; 1114-fourth touch electrode; 1110-sub touch electrode; 11101-first sub touch electrode; 11102-second sub touch electrode; 120-pixel array structure 125-wire; 130-touch detection chip; 140-frame sealant; 150-liquid crystal layer; 160-opposing substrate; 180-first conductive particle layer; 183-second conductive particle layer; ; 191 - bottom plate; 192 - side plate; 193 - hollow structure; 1931 - first hollow structure; 1932 - second hollow structure; 199 - display surface.

detailed description

The technical solutions of the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present invention without departing from the scope of the invention are within the scope of the invention.

Unless otherwise defined, technical terms or scientific terms used in the present disclosure are intended to be in the ordinary meaning of those of ordinary skill in the art. The words "first," "second," and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. Similarly, the words "a", "an", "the" The word "comprising" or "comprises" or the like means that the element or item preceding the word is intended to be in the The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationship when described as After the absolute position of the image changes, the relative positional relationship may also change accordingly.

At least one embodiment of the present invention provides an array substrate, a display panel including the array substrate, and a display device including the display panel. As shown in FIG. 1, the array substrate includes a base substrate 101 including a display area 1011 and a peripheral area 1012 surrounding the display area 1011. The display area 1011 is provided with a pixel array structure 120, the peripheral area At least one touch electrode 111 is disposed in the 1012, and the at least one touch electrode 111 is disposed along an edge of the base substrate 101. The “at least one touch electrode” includes a touch electrode or a plurality of touch electrodes. "Multiple" means, for example, more than one. In FIG. 1 , a touch electrode is taken as an example for description. However, the peripheral region 1012 may also be provided with a plurality of touch electrodes 111.

The array substrate has at least one touch electrode formed in the peripheral area, and at least one touch electrode is disposed along the edge of the base substrate, thereby achieving the purpose of replacing the physical button, thereby reducing the display panel and the display device to which the array substrate is applied The width of the border.

For example, the at least one touch electrode may be separately fabricated from one or more conductive films, and may be generally conductive structures (eg, a pixel electrode layer, a common electrode layer, a gate layer, a source/drain layer, etc.) in the array substrate. ) Same layer settings.

It should be understood herein that in the present disclosure, "same layer" refers to a layer structure formed by forming a film layer for forming a specific pattern by the same film forming process, and then forming the pattern by one patterning process using the same mask. Depending on the particular pattern, a patterning process may include multiple exposure, development, or etching processes, and the particular pattern in the resulting layer structure may be continuous or discontinuous, and these particular patterns may also be at different heights. Or have different thicknesses.

It should be noted that, in the embodiment of the present invention, the patterning or patterning process may include only a photolithography process, or include a photolithography process and an etching step, or may include other processes for forming a predetermined pattern, such as printing, inkjet, and the like. . The photolithography process refers to a process including film formation, exposure, development, and the like, and forms a pattern by using a photoresist, a mask, an exposure machine, or the like. The corresponding patterning process can be selected in accordance with the structure formed in the embodiments of the present invention.

The following is explained by several embodiments.

Embodiment 1

This embodiment provides an array substrate. As shown in FIG. 2, the array substrate includes a base substrate 101 including a display area 1011 and a peripheral area 1012 surrounding the display area 1011. The display area 1011 is provided with a pixel array structure 120, and the peripheral area 1012 is provided with at least One touch The control electrode 111 has at least one touch electrode 111 disposed along an edge of the base substrate 101. And the edge of the at least one touch electrode 111 is flush with the edge of the base substrate 101.

It should be noted that the array substrate provided in this embodiment has the edge of the touch electrode 111 flush with the edge of the base substrate 101, so that the touch electrode 111 can be closer to the border of the display panel/display device using the array substrate. Therefore, the touch sensitivity of the touch electrode 111 can be improved.

Figure 3 is a partial cross-sectional view of the array substrate of the present embodiment taken along the line A-A' of Figure 2; As shown in FIG. 3, the array substrate includes a base substrate 101 including a display area 1011 and a peripheral area 1012. The base substrate 101 includes a gate electrode 102 disposed in the display region 1011 on the base substrate 101, a gate insulating layer 103 covering the gate electrode 102, and an active layer 104 disposed on the gate insulating layer 103 corresponding to the position of the gate electrode 102. a source 105 and a drain 106 disposed on the active layer 104 and on both sides of the active layer 104 and in contact with the active layer, covering the passivation layer 107 of the entire base substrate 101, disposed on the passivation layer 107 The common electrode 108 in the display region 1011, the insulating layer 110 disposed on the common electrode 108, and the pixel electrode 109 disposed in the display region 1011 on the insulating layer 110. It should be noted that FIG. 3 is only a schematic illustration, and an array substrate of the ADS mode is provided. The array substrate provided in this embodiment is not limited thereto.

For example, the above array substrate can be used as an array substrate of a liquid crystal display device (LCD), or can be used as an array substrate of an organic light emitting display device (OLED) or an electronic paper display device. For example, the base substrate 101 may be a glass substrate, a quartz substrate, a plastic substrate, or other substrate.

For example, the material of the gate electrode 102 includes one or more selected from the group consisting of aluminum, titanium, tantalum, chromium, molybdenum, tungsten molybdenum, or an alloy of any of the foregoing metals. For example, the material of the source 105 and the drain 106 includes one or more selected from the group consisting of one or more selected from the group consisting of aluminum, titanium, tantalum, chromium, molybdenum, and molybdenum tungsten, or an alloy of any of the foregoing metals. . For example, the material of the common electrode 108 and the pixel electrode 109 may be a transparent metal oxide such as indium tin oxide (ITO) or indium zinc oxide (IZO). That is, the above-described gate 102, source 105, drain 106, common electrode 108, and pixel electrode 109 may all be electrically conductive structures.

The array substrate of this embodiment further includes at least one touch electrode 111. As shown in FIG. 3, the array substrate includes a touch electrode 111, and the touch electrode 111 is disposed in the peripheral region 1012 on the base substrate 111. The touch electrode 111 is disposed along the edge of the base substrate 101 and is flush with the edge of the base substrate 101. It should be noted that the touch electrode 111 may not be disposed flush with the edge of the base substrate 101, which is not limited herein.

For example, as shown in FIG. 3, in one example of the embodiment, the touch electrode 111 can be disposed in the same layer as the gate 102. That is to say, the touch electrode 111 can be formed by the same gate metal layer from the gate electrode 102 by one patterning process.

For example, as shown in FIG. 4, in one example of the embodiment, the touch electrode 111 can be disposed in the same layer as the source 105 and the drain 106. That is to say, the touch electrode 111 can be formed by the same source/drain metal layer from the source 105 and the drain 106 through one patterning process.

For example, as shown in FIG. 5, in one example of the embodiment, the touch electrode 111 is disposed in the same layer as the common electrode 108. That is to say, the touch electrode 111 can be formed from the same transparent metal oxide layer and the common electrode 108 by one patterning process. Similarly, the touch electrode 111 can also be disposed in the same layer as the pixel electrode 109. I will not repeat them here.

That is to say, the touch electrode 111 can be disposed in the same layer as any one of the conductive structures in the array substrate. It should be noted that the touch electrodes 111 can also be separately provided. The array substrate provided in this embodiment can save the material and process for preparing the touch electrode 111 by arranging the touch electrode 111 and any one of the conductive structures in the array substrate, thereby reducing the cost.

It should be noted that the conductive structure includes, but is not limited to, a pixel electrode layer, a common electrode layer, a gate layer, and a source and drain layer. The conductive structure may also include other conductive structures disposed in the display area. For example, in the case where the array substrate is an array substrate of an in-cell type touch display device, the conductive structure includes touches in the display area. Control electrode (touch drive electrode or touch sensing electrode) or corresponding lead wire.

In FIG. 2, a touch electrode is taken as an example for description. A plurality of touch electrodes 111 may also be disposed in the peripheral region 1012.

For example, the array substrate provided by one example of the embodiment further includes at least one wire 125 electrically connected to the at least one touch electrode 111 for input/output signals. For example, as shown in FIG. 2, the array substrate includes a wire 125 electrically connected to the touch electrode 111. In the array substrate provided in this embodiment, the wires 125 may be disposed in the same layer as any one of the conductive structures in the array substrate, and formed by the same conductive layer through a patterning process. It should be noted that the wires 125 can also be separately provided. The array substrate provided in this embodiment can save the material and process for preparing the wires 125 by setting the wires 125 in the same layer as any one of the array substrates, thereby reducing the cost.

In addition, the wire 125 can be disposed in the same layer as the touch electrode 111, but can also be connected to the touch electrode 111. In the same layer setting, for example, the wires 125 are disposed in different layers from the touch electrodes 111, and electrical connections between them are realized by common connection methods such as via holes.

For example, the array substrate provided by one example of the embodiment further includes a touch detection chip 130. For example, as shown in FIG. 2, the array substrate includes a touch detection chip 130. The touch detection chip 130 is disposed on the peripheral region 1012 of the base substrate 101 and connected to the wires 125. That is, the touch electrode 111 is connected to the touch detection chip 130 via the wire 125.

In the array substrate provided in this embodiment, the touch electrode 111 can be a self-capacitive touch electrode. When the finger touches the side of the display panel/display device of the array substrate provided by the embodiment (the side is, for example, in the thickness direction of the substrate substrate, the thickness direction of the substrate substrate is, for example, a direction perpendicular to the display surface, In the following embodiments, when the position of the touch electrode 111 is located, the capacitance of the finger is sensed to the touch electrode 111, thereby changing the capacitance of the touch electrode 111. The touch detection chip 130 determines the touch position by detecting the change of the capacitance value of the respective capacitor electrodes, thereby implementing touch control on the display panel/display device using the array substrate provided in this embodiment. For example, when a plurality of touch electrodes 111 are disposed, the touch electrodes can also be configured as mutual capacitive touch electrodes, and the touch detection chip 130 is configured to provide corresponding detection.

Embodiment 2

This embodiment provides an array substrate. The array substrate includes a base substrate 101, a pixel array structure 120, a touch electrode 111, a gate 102, a gate insulating layer 103, an active layer 104, a source 105, a drain 106, a passivation layer 107, a common electrode 108, The insulating layer 110 and the pixel electrode 109. For the positional relationship and the connection relationship of the above-mentioned components, refer to the related description of FIG. 3 in the first embodiment, and details are not described herein again. As shown in FIG. 6 and FIG. 7 , the array substrate provided in this embodiment further includes a first conductive particle layer 180 disposed on at least one touch electrode 111 , and the first conductive particle layer 180 is disposed on a peripheral region of the base substrate 101 . 1012 is electrically connected to the corresponding touch electrode 111.

For example, as shown in FIG. 6, in one example of the embodiment, the touch electrode 111 is disposed in the same layer as the gate electrode 102, and is disposed along the edge of the base substrate 101, and its edge is flush with the edge of the base substrate 101. The array substrate further includes a first conductive particle layer 180 disposed on the touch electrode 111. The first conductive particle layer 180 can be directly formed on the touch electrode 111 to be electrically connected to the touch electrode 111. It should be noted that the conductive particle layer 180 can be electrically connected, for example, through a via or other connection structure.

For example, as shown in FIG. 7 , in one example of the embodiment, the touch electrode 111 and the source 105 are It is disposed in the same layer as the drain electrode 106, and is disposed along the edge of the base substrate 101, the edge of which is flush with the edge of the base substrate 101. The array substrate further includes a first conductive particle layer 180 disposed on the touch electrode 111. The first conductive particle layer 180 can be directly formed on the touch electrode 111 to achieve electrical connection with the touch electrode 111. It should be noted that the conductive particle layer 180 can be electrically connected, for example, through a via or other connection structure.

For example, the first conductive particle layer can also be used for each touch electrode. The first conductive particle layer can be connected to the touch detection chip via a wire. The manner in which the wires are arranged in this case can be referred to the description of the manner in which the wires are arranged in the respective embodiments.

For example, the conductive particle layer 180 may include an anisotropic conductive paste. The anisotropic conductive paste can conduct electricity in one direction and not in other directions. For example, it is possible to conduct electricity in the thickness direction of the substrate substrate (perpendicular to the direction of the display surface, and to conduct electricity in the lateral direction (parallel to the direction of the display surface).

For example, the conductive particle layer 180 may be, for example, a paste containing a conductive powder, for example, a glue in which a conductive powder and an epoxy resin are mixed. The conductive powder may include carbon powder, silver powder, gold powder, nickel powder, or the like. But it is not limited to this. For example, a via hole is formed over the touch electrode 111, and a conductive silver paste or a sealant of a conductive metal ball is doped in the via hole to form a conductive particle layer 180. Of course, the conductive particle layer 180 may also use other conductive particles. For example, the conductive particles are covered with an insulating layer. During the pressing process, the insulating layer surrounding the conductive particles in the longitudinal direction is broken, so that the longitudinal direction can be electrically connected, and the insulating layer is laterally disposed outside the conductive particles, so that it is not electrically conductive.

The anisotropic conductive paste becomes conductive in the vertical direction, for example, after being pressed in a direction perpendicular to the display surface at a specific position.

For example, the conductive particle layer 180 can also be electrically conductive without being subjected to pressure. For example, a conductive layer formed of conductive particles may be employed.

The array substrate of the present embodiment can increase the sensing range of the touch electrode 111 in the vertical direction, that is, the thickness direction of the array substrate, by forming the first conductive particle layer 180 on the touch electrode 111, thereby improving the touch sensitivity of the touch electrode 111. .

For example, the array substrate provided by an example of the embodiment further includes at least one wire 125 and a touch detection chip 130. For the specific configuration and positional relationship, refer to the related description in the first embodiment, and details are not described herein again.

In the array substrate provided in this embodiment, the touch electrode 111 can be a self-capacitive touch electrode. When the finger touches the position of the touch electrode 111 in the side of the display device (in the direction perpendicular to the display surface) of the array substrate provided by the embodiment, the capacitance of the finger senses the conductive particle layer 180 and the touch electrode 111. Therefore, the capacitance of the touch panel 111 is changed. The touch detection chip 130 determines the touch position by detecting the change of the capacitance value of the respective capacitor electrodes, thereby implementing the display panel/display device using the array substrate provided by the embodiment. Touch control. For example, when a plurality of touch electrodes 111 are disposed, the touch electrodes can also be configured as mutual capacitive touch electrodes, and the touch detection chip 130 is configured to provide corresponding detection.

Embodiment 3

This embodiment provides an array substrate. The array substrate includes a base substrate 101, a pixel array structure 120, a touch electrode 111, a gate 102, a gate insulating layer 103, an active layer 104, a source 105, a drain 106, a passivation layer 107, a common electrode 108, The insulating layer 110 and the pixel electrode 109. For the positional relationship and the connection relationship of the above-mentioned components, refer to the related description of the first embodiment, and details are not described herein again. In the array substrate provided in this embodiment, the touch electrode 111 includes a plurality of sub-touch electrodes, and the plurality of sub-touch electrodes are respectively disposed in the same layer as any one of the plurality of conductive structures, and the plurality of sub-touch electrodes are mutually Electrical connection.

For example, the touch electrode 111 can include a plurality of sub-touch electrodes. For example, as shown in FIG. 8 , the touch electrode 111 can include two sub-touch electrodes 1110 : a first sub-touch electrode 11101 and a second sub-touch electrode 11102 . The first sub-touch electrode 11101 is disposed in the same layer as the gate 102. The second sub-touch electrode 11102 is disposed in the same layer as the source 105 and the drain 106. Moreover, the first sub-touch electrode 11101 and the second sub-touch electrode 11102 are electrically connected to each other.

It should be noted that the number of sub-touch electrodes is not limited to two, and the number of sub-touch electrodes may be more. The sub-touch electrodes are not limited to being disposed in the same layer as the gate layer and the source and drain electrodes, and for example, sub-touch electrodes disposed in the same layer as the common electrode layer and/or the pixel electrode layer may be provided. Of course, sub-touch electrodes that are separately disposed or disposed in the same layer as other conductive structures may also be included.

In the array substrate provided in this embodiment, on the one hand, by providing the plurality of sub-touch electrodes on the touch electrode 111, the sensing of the touch electrode 111 in the vertical direction, that is, the thickness direction of the array substrate (perpendicular to the display surface) can be increased. The range is such that the touch sensitivity of the touch electrode 111 is improved. On the other hand, the array substrate provided in this embodiment can reduce the cost and the cost by preparing the sub-touch electrodes and the conductive structures in the array substrate in the same layer.

It should be noted that the touch electrode 111 in the array substrate provided by this embodiment is not limited to the package. The two sub-touch electrodes may also include three, four, five, and the like, a plurality of sub-touch electrodes. In the meantime, the sub-touch electrodes may be disposed in the same layer as the conductive structures of the array substrate, or may be separately disposed, and are not limited herein.

For example, the array substrate provided in one example of the embodiment may further include at least one wire 125 and a touch detection chip 130. For the specific configuration and positional relationship, refer to the related description in the first embodiment, and details are not described herein again.

In the array substrate provided in this embodiment, the touch electrode 111 can be a self-capacitive touch electrode. When the finger touches the position of the touch electrode 111 in the side of the display device of the array substrate provided by the embodiment, the capacitance of the finger senses the first sub-touch electrode 11101 and/or the second sub-touch of the touch electrode 111. The electrode 11102 is controlled to change the capacitance of the touch electrode 111. The touch detection chip 130 determines the touch position by detecting the change of the capacitance value of the respective capacitor electrodes, thereby implementing touch control on the display panel/display device using the array substrate provided in this embodiment. For example, when a plurality of touch electrodes 111 are disposed, the touch electrodes can also be configured as mutual capacitive touch electrodes, and the touch detection chip 130 is configured to provide corresponding detection.

Embodiment 4

This embodiment provides an array substrate. The array substrate includes a base substrate 101 which is divided into a display area 1011 and a peripheral area 1012 surrounding the display area 1011. The display area 1011 is formed with a pixel array structure 120, and the peripheral area 1012 is provided with at least one touch electrode 111. At least one touch electrode 111 is disposed along an edge of the base substrate 101. And the edge of the at least one touch electrode 111 is flush with the edge of the base substrate 101.

As shown in FIG. 9, the array substrate includes a plurality of touch electrodes 111 disposed on the edge of the base substrate 101. For example, the plurality of touch electrodes include a first touch electrode 1111, a second touch electrode 1112, and a third touch. The electrode 1113 and the fourth touch electrode 1114.

It should be noted that the array substrate provided in this embodiment has the edge of the touch electrode 111 flush with the edge of the substrate 101, so that the touch electrode 111 can be closer to the frame of the display device using the array substrate, thereby The touch sensitivity of the touch electrode 111 is improved.

Figure 10 is a partial cross-sectional view of the array substrate of the present embodiment taken along the line A-A' in Figure 9; As shown, the array substrate includes a base substrate 101 that includes a display area 1011 and a peripheral area 1012. The base substrate 101 includes a gate electrode 102 disposed in the display region 1011 on the base substrate 101, and is disposed on the peripheral region 1012 of the base substrate 101 and along the substrate substrate 101. The touch electrode 111 is disposed on the active layer 104 and is disposed on the active layer 104 of the gate insulating layer 103. The source 105 and the drain 106 on both sides of the source layer 104 cover the passivation layer 107 of the entire base substrate 101 and the anode 109 disposed in the display region 1011 on the passivation layer 107.

It can be seen that the above array substrate can be used as an array substrate of an organic light emitting diode display device (OLED). It should be noted that the anode 109 described above can also be used as a pixel electrode of a liquid crystal display (LCD) array substrate, and the liquid crystal display can be in various modes such as VA, TN, IPS, and ADS.

For example, the base substrate 101 may be a glass substrate, a quartz substrate, or other substrate; the material of the gate 102 includes one or more selected from the group consisting of aluminum, titanium, tantalum, chromium, molybdenum, and tungsten molybdenum, or the above metal. One or more of the alloys of any composition. For example, the material of the source 105 and the drain 106 includes one or more selected from the group consisting of one or more selected from the group consisting of aluminum, titanium, tantalum, chromium, molybdenum, and molybdenum tungsten, or an alloy of any of the foregoing metals. . For example, the material of the anode 109 may be a transparent metal oxide such as indium tin oxide (ITO) or indium zinc oxide (IZO). That is to say, the above-mentioned gate 102, source 105, drain 106 and anode 109 may all be electrically conductive structures.

The first touch electrode 1111, the second touch electrode 1112, the third touch electrode 1113, and the fourth touch electrode 1114 can be disposed in the same layer, and can be connected to the gate 102, the source 105 and the drain 106, and the anode 109. Any one of the conductive structures is set in the same layer. It should be noted that the first touch electrode 1111, the second touch electrode 1112, the third touch electrode 1113, and the fourth touch electrode 1114 may not be disposed in the same layer as the conductive structure, and may be separately disposed. The array substrate provided in this embodiment is configured by arranging the first touch electrode 1111, the second touch electrode 1112, the third touch electrode 1113, and the fourth touch electrode 1114 in the same layer as any one of the array structures. The material and process for preparing the touch electrode 111 can be saved, thereby reducing the cost. The array substrate of the present embodiment includes, but is not limited to, the first touch electrode 1111, the second touch electrode 1112, the third touch electrode 1113, and the fourth touch electrode 1114.

For example, FIG. 11 is a partial cross-sectional view of the array substrate provided in the embodiment taken along line B-B' in FIG. As shown in the figure, the array substrate includes a base substrate 101, a first touch electrode 1111 disposed on the base substrate 101, and a gate insulating layer 103 disposed on the first touch electrode 1111 and covering the entire base substrate 101. The second touch electrode 1112 disposed on the gate insulating layer 103 is disposed on the second touch electrode 1112 and covers the passivation layer 107 of the entire base substrate 101. It can be seen that the first touch electrode 1111 and the second touch electrode 1112 are disposed on the array substrate in different layers. For example, the second touch The control electrode 1112 can be disposed in the same layer as the gate layer, and the first touch electrode 1111 can be disposed in the same layer as the source and drain layers.

It should be noted that the array substrate provided in this embodiment is not limited to include four sub-touch electrodes, and may include five, six, seven, and the like, and is not limited herein.

For example, the array substrate provided by one example of the embodiment further includes at least one wire 125 electrically connected to the at least one touch electrode 111 for input/output signals. For example, as shown in FIG. 9 , the array substrate includes four wires 125 electrically connected to the first touch electrodes 1111 , the second touch electrodes 1112 , the third touch electrodes 1113 , and the fourth touch electrodes 1114 .

For example, in the array substrate provided in this embodiment, the four wires 125 may be disposed in the same layer as any one of the conductive structures in the array substrate, and formed by the same conductive layer through a patterning process. It should be noted that the wires 125 can also be separately provided. Each of the wires 125 may also be disposed in different layers. For example, the plurality of wires may be disposed in the same layer as the plurality of conductive structures in the array substrate. For example, some of the wires are disposed in the same layer as the gate layer, and some of the wires are disposed in the same layer as the source and drain layers. The array substrate provided in this embodiment can save the material and process for preparing the wires 125 by arranging the wires 125 in the same layer as the at least one conductive structure in the array substrate, thereby reducing the cost.

In addition, the four wires 125 may be disposed in the same layer as the first touch electrodes 1111, the second touch electrodes 1112, the third touch electrodes 1113, and the fourth touch electrodes 1114, but may also be combined with the first touch electrodes 1111, The two touch electrodes 1112, the third touch electrodes 1113, and the fourth touch electrodes 1114 are disposed in different layers. For example, when the wire 125 is disposed in different layers from the first touch electrode 1111, the second touch electrode 1112, the third touch electrode 1113, and the fourth touch electrode 1114, the common connection manner such as via holes can be realized. An electrical connection with each of the touch electrodes and the corresponding wires.

For example, the array substrate provided by one example of the embodiment further includes a touch detection chip 130. For example, as shown in FIG. 9 , the array substrate includes a touch detection chip 130 , and the touch detection chip 130 can be disposed on the peripheral region 1012 of the base substrate 101 and connected to the four wires 125 .

In the array substrate provided in this embodiment, the touch electrode 111 can be a self-capacitive touch electrode. When the finger touches the position of the touch panel in the side of the display panel/display device of the array substrate provided by the embodiment, the capacitance of the finger is sensed to one or more of the touch electrodes 111, thereby changing the touched The capacitance of the touch electrode. The touch detection chip 130 determines the touch position by detecting the change of the capacitance value of the respective capacitor electrodes, thereby implementing the control of the display panel/display device using the array substrate provided by the embodiment.

In the array substrate provided in this embodiment, the plurality of touch electrodes may include a touch driving electrode and a touch sensing electrode to form a mutual capacitive touch electrode. A capacitor is formed where the touch drive electrode and the touch sensing electrode intersect. When a finger touches the capacitive screen, it affects the coupling between the two electrodes near the touch point, thereby changing the capacitance between the two electrodes. The touch detection chip determines the touch position by detecting the change of the capacitance value during the touch time period.

Embodiment 5

The present embodiment provides a display panel including an array substrate and a counter substrate 160, and the array substrate is any one of the array substrates described in the first to fourth embodiments. For example, the display device may be a liquid crystal display device (LCD) or an organic light emitting diode display device (OLED).

For example, FIG. 12 is a partial cross-sectional view of a display device according to the embodiment. The display device includes an array substrate according to the first embodiment, and the positional relationship and connection relationship between the technical features and technical features are described in the implementation. The related description of Example 1 will not be repeated here. As shown in FIG. 12, the display device further includes a liquid crystal layer 150 disposed in the display region 1011 of the substrate substrate 101 on the array substrate, a sealant 140 disposed in the peripheral region 1012 of the substrate substrate 101 on the array substrate, and disposed on the above The liquid crystal layer 150 and the opposite substrate 160 on the sealant 140 constitute a liquid crystal cell. The opposite substrate and the array substrate are disposed opposite to each other, and the opposite substrate and the array substrate are respectively upper and lower substrates of the display panel. For example, a display structure such as a thin film transistor array is usually formed on an array substrate, and a color resin is formed on the opposite substrate. For example, the opposite substrate is a color film substrate.

For example, the display panel provided in the first embodiment further includes a second conductive particle layer 183 disposed between the at least one touch electrode and the opposite substrate 160 of the array substrate, and the second conductive particle layer. 183 is disposed on and electrically connected to at least one touch electrode 111 of the peripheral region 1012 of the base substrate 101 of the array substrate.

For example, the second conductive particle layer can also be used for each touch electrode. The at least one second conductive particle layer can be connected to the touch detection chip via a wire. The manner in which the wires are arranged in this case can be referred to the description of the manner in which the wires are arranged in the respective embodiments.

For example, FIG. 13 is a partial cross-sectional view of a display device according to the embodiment. The display device includes an array substrate according to the first embodiment, and the positional relationship and connection relationship between the technical features and technical features are described in the implementation. The related description of Example 1 will not be repeated here. As shown in FIG. 13 , the display device further includes a second conductive particle layer 183 disposed in the sealant 140 between the array substrate and the opposite substrate 160 , and the second conductive particle layer 183 is disposed on the touch electrode 111 and Straight Connected to each other.

For example, the second conductive particle layer 183 may be an anisotropic conductive paste.

For example, related features of the second conductive particle layer 183 can be found in the previous first conductive particle layer 180. The display panel provided in this embodiment includes but is not limited thereto.

For example, as shown in FIG. 14, the display panel includes a first touch electrode 1111 formed on the base substrate 101 in the same layer as the gate 102, and a second touch disposed in the same layer as the source 105 and the drain 106. Electrode 1112. The display panel further includes a first gold ball layer 181 and a second gold ball layer 182 sandwiched between the base substrate 101 and the opposite substrate 160 of the array substrate. The first gold ball layer 181 is disposed on and electrically connected to the first touch electrode 1111. The second gold ball layer 182 is disposed on and electrically connected to the second touch electrode 112. Here, the first gold ball layer and the second gold ball layer will be described as an example. For example, the first gold ball layer and the second gold ball layer include a frame sealant doped with a conductive gold ball. For example, the second conductive particle layer 183 may also use other conductive particles.

The display panel provided in this embodiment can increase the direction of the touch electrode 111 in the vertical direction, that is, the thickness direction of the display panel (the direction perpendicular to the display surface 199) by disposing the second conductive particle layer 183 between the array substrate and the opposite substrate 160. The sensing range of the above), thereby improving the touch sensitivity of the display panel.

For example, the touch electrode structure provided by the embodiments of the present invention includes, but is not limited to, a side (perpendicular to the display surface) touch. For example, a finger can also touch the display surface to implement touch control.

It should be noted that the display panel of the present embodiment may further include the array substrate according to any one of the above embodiments 1 to 4. The specific configuration is not listed one by one.

Embodiment 6

The embodiment provides a display device including any of the display panels described in Embodiment 5.

For example, as shown in FIG. 15 , the display device provided in this embodiment may further include a back plate 190 including a bottom plate 191 and a plurality of side plates 192 disposed on the periphery of the bottom plate. The back plate material includes plastic and metal. In the case where the back plate material is made of metal, a hollow structure 193 is provided at a position of the side plate corresponding to the at least one touch electrode. Thereby, at least one touch electrode 111 is not shielded to implement a control function for the display device. Two hollow structures corresponding to the two touch electrodes are shown in FIG. 15: a first hollow structure 1931 and a second hollow structure 1931. For example, each hollow structure can include at least one aperture through the side panels. For example, the number of hollow structures can be determined according to the number of touch electrodes. Of course, if the back plate material is made of plastic, it can also be provided with a hollow structure. Hollow structure set with metal.

It should be noted that, for the sake of clarity, the entire structure of the display device is not given. In order to realize the necessary functions of the display device, a person skilled in the art can set other structures not shown according to the specific application scenario, which is not limited by the present invention. For the technical effects of the display device provided in this embodiment, refer to the technical effects of the array substrate described in the first to fourth embodiments, and details are not described herein again.

It should be noted that when the array substrate, the display panel or the display device provided by the embodiment of the present invention is used, in order to avoid erroneous operation caused by mis-touch, a corresponding anti-missing program can be designed to avoid misoperation to the user. inconvenient. For example, the device can be woken up by setting a continuous touch twice or three times.

For example, the touch electrode described above can replace the physical button such as the switch button, the volume increase and decrease button, which is usually disposed on the side of the display panel (perpendicular to the display surface).

There are a few points to note:

(1) The drawings of the embodiments of the present invention relate only to the structures related to the embodiments of the present invention, and other structures can be referred to the general design.

(2) For the sake of clarity, the thickness of layers or regions is enlarged or reduced in the drawings for describing the embodiments of the present invention, that is, the drawings are not drawn to actual scales. It will be understood that when an element such as a layer, a film, a region or a substrate is referred to as being "on" or "lower" Or there may be intermediate elements.

(3) In the case of no conflict, the features of the embodiments and the embodiments of the present invention can be combined with each other to obtain a new embodiment.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

The present application claims the priority of the Chinese Patent Application No. 201510587675.5 filed on Sep. 15, 2015, the entire disclosure of which is hereby incorporated by reference.

Claims

An array substrate comprising a substrate substrate, wherein the substrate substrate comprises a display area and a peripheral area surrounding the display area, wherein the display area is provided with a pixel array structure, and at least one of the peripheral areas is disposed a touch electrode, the at least one touch electrode being disposed along an edge of the base substrate.
The array substrate according to claim 1, wherein an edge of the at least one touch electrode is flush with an edge of the base substrate.
The array substrate according to claim 1 or 2, wherein the pixel array structure comprises at least one layer of conductive structures, and the at least one touch electrode is disposed in the same layer as any one of the at least one layer of conductive structures.
The array substrate according to claim 3, wherein the conductive structure comprises any one of a pixel electrode layer, a common electrode layer, a gate layer, and a source/drain layer.
The array substrate of claim 1 , wherein the pixel array structure comprises a plurality of layers of conductive structures, the touch electrodes comprise a plurality of sub-touch electrodes, and the plurality of sub-touch electrodes and the multilayer conductive structure respectively Any one of the conductive structures is disposed in the same layer, and the plurality of sub-touch electrodes are electrically connected to each other.
The array substrate according to claim 5, wherein the conductive structure comprises a plurality of pixel electrode layers, a common electrode layer, a gate layer, and a source/drain layer.
The array substrate according to any one of claims 1 to 6, wherein the plurality of touch electrodes are disposed in the same layer or in different layers.
The array substrate according to any one of claims 1 to 7, wherein at least one of the touch electrodes is provided with a first conductive particle layer, and the first conductive particle layer is disposed in a peripheral region of the base substrate and And electrically connected to the corresponding touch electrode.
The array substrate according to any one of claims 1 to 8, further comprising at least one wire, wherein the at least one wire is electrically connected to the at least one touch electrode for input/output signals, respectively.
The array substrate according to claim 9, wherein the pixel array structure comprises at least one layer of conductive structures, and the at least one wire is disposed in the same layer as at least one of the conductive structures.
The array substrate of claim 10, wherein the conductive structure comprises a pixel At least one of a pole layer, a common electrode layer, a gate layer, and a source/drain layer.
The array substrate according to any one of claims 9-11, wherein the at least one wire is connected to the touch detection chip.
The array substrate according to any one of claims 1 to 12, wherein the at least one touch electrode is a self-capacitance electrode, or the touch electrodes are plural, and the plurality of touch electrodes comprise a touch drive electrode. And touch sensing electrodes.
A display panel comprising an array substrate and a counter substrate of a pair of substrates, wherein the array substrate is the array substrate according to any one of claims 1-13.
The display panel of claim 14, further comprising a second conductive particle layer disposed between the at least one touch electrode and the opposite substrate on the array substrate, wherein the second conductive particle layer is disposed at Above and at least corresponding to at least one touch electrode of the peripheral region.
The display panel according to claim 15, wherein the second conductive particle layer comprises an anisotropic conductive paste.
A display device comprising the display panel of any one of claims 14-16.
The display device according to claim 17, further comprising a backboard, wherein the backboard comprises a bottom plate and a plurality of side plates disposed at a periphery of the bottom plate at a position of the side plate corresponding to the at least one touch electrode There is a hollow structure.