CN106855671B - Array substrate, display panel and display device - Google Patents
Array substrate, display panel and display device Download PDFInfo
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- CN106855671B CN106855671B CN201710113757.5A CN201710113757A CN106855671B CN 106855671 B CN106855671 B CN 106855671B CN 201710113757 A CN201710113757 A CN 201710113757A CN 106855671 B CN106855671 B CN 106855671B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
Abstract
The embodiment of the invention discloses an array substrate, a display panel and a display device, wherein the array substrate comprises a substrate, a plurality of scanning lines and a plurality of data lines, the plurality of scanning lines and the plurality of data lines are insulated and crossed to limit a plurality of pixel units, and pixel electrodes electrically connected with the data lines are arranged in the pixel units; the touch wire is electrically connected with a corresponding touch electrode through the bridge-spanning structure; a bridge-spanning structure is arranged at the intersection of at least one pixel electrode, and the bridge-spanning structure and the pixel electrode are arranged on the same layer; along the extending direction of the data line, the pixel electrode comprises two end electrodes; along the extending direction of the scanning lines, the distance between the end electrodes of two adjacent first pixel electrodes is greater than the distance between the end electrodes of two adjacent first pixel electrodes and the second pixel electrodes, and is greater than or equal to the distance between the end electrodes of two adjacent second pixel electrodes. In conclusion, the distance between the end electrode of the pixel electrode and the bridge-crossing structure is large, the process requirement is simple, and the production cost is low.
Description
Technical Field
The embodiment of the invention relates to the technical field of semiconductors, in particular to an array substrate, a display panel and a display device.
Background
A Liquid Crystal Display (LCD), which belongs to a flat panel Display. With the development of science and technology, the current scientific and technological information products of the LCD are also developed towards the goals of being light, thin, short and small, and the user can enjoy the best visual environment no matter the advantages of right-angle display, low power consumption, small volume, zero radiation and the like.
The display with touch function is generated based On the technology of function enrichment, and the more common touch technologies include In-cell touch technology and On-cell touch technology. The In-cell touch technology refers to a technology for integrating a touch structure On an array substrate or an opposite substrate In a display panel, and the On-cell touch technology refers to a method for embedding a touch structure function between a color film substrate and a polarizing plate. Touch Embedded Display (TED) technology is similar to In-cell Touch technology In LCD, and is also a technology for integrating a Touch structure on an array substrate or an opposite substrate In a Display panel.
In the existing high-definition TED display, due to the limited space, the distance between a bridge connecting a touch wire and a touch electrode and a pixel unit is very small, high-precision exposure equipment is required in the preparation process, the process requirement is high, and the productivity is influenced.
Disclosure of Invention
In view of this, embodiments of the present invention provide an array substrate, a display panel and a display device to solve the technical problem of high process requirements in the manufacturing process of the existing TED display apparatus.
In a first aspect, an embodiment of the present invention provides an array substrate, including:
a substrate base plate;
a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units, and pixel electrodes electrically connected with the data lines are arranged in the pixel units;
the touch control device comprises a plurality of touch control electrodes, a plurality of touch control routing lines and a bridge crossing structure;
the touch routing is electrically connected with the corresponding touch electrode through the bridge spanning structure; the bridge-spanning structure is arranged at the intersection of at least one pixel electrode, and the bridge-spanning structure and the pixel electrode are arranged on the same layer; the pixel electrode intersection refers to the intersection of two adjacent rows of pixel electrodes and two adjacent columns of pixel electrodes; wherein the pixel electrode adjacent to the bridge spanning structure is a first type of pixel electrode; the pixel electrodes which are not adjacent to the bridge spanning structure are pixel electrodes of a second type;
along the extending direction of the data line, the pixel electrode comprises two end electrodes and a branch electrode which is positioned between the two end electrodes and is connected with the two end electrodes; along the extension direction of the scanning lines, the distance between the end electrodes of two adjacent first-class pixel electrodes is greater than the distance between the end electrodes of two adjacent first-class pixel electrodes and second-class pixel electrodes, and is greater than or equal to the distance between the end electrodes of two adjacent second-class pixel electrodes.
The extending direction of the scanning lines is a row direction, and the extending direction of the data lines is a column direction.
In a second aspect, an embodiment of the present invention further provides a display panel, including the array substrate of the first aspect, and further including an opposite substrate disposed opposite to the array substrate.
In a third aspect, an embodiment of the present invention further provides a display device, including the display panel according to the second aspect.
According to the array substrate, the display panel and the display device provided by the embodiment of the invention, the touch routing is electrically connected with a corresponding touch electrode through the bridge-spanning structure, wherein the pixel electrode adjacent to the bridge-spanning structure is a first-type pixel electrode, the pixel electrode not electrically connected with the bridge-spanning structure is a second-type pixel electrode, and the pixel electrode comprises two end electrodes and a branch electrode which is positioned between the two end electrodes and connected with the two end electrodes along the extension direction of the data line; along the extending direction of the scanning lines, the distance between the end electrodes of two adjacent first pixel electrodes is greater than the distance between the end electrodes of two adjacent first pixel electrodes and the second pixel electrodes, and is greater than or equal to the distance between the end electrodes of two adjacent second pixel electrodes. The bridge-spanning structure keeps a larger distance from the end electrode between the first type of pixel electrode adjacent to the bridge-spanning structure, so that the preparation process of the array substrate is simple in process requirement, the preparation efficiency and the product yield are improved, and the production cost is reduced; in addition, a larger distance exists between the bridge-spanning structure and the end electrode of the first-class pixel electrode adjacent to the bridge-spanning structure, the short circuit risk between the bridge-spanning structure and the pixel electrode can be reduced, and the normal use of the array substrate is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 is a schematic top view of an array substrate according to an embodiment of the present invention;
fig. 2 is a schematic top view of another array substrate according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the array substrate of FIG. 1 along the section line A-A';
fig. 4 is a schematic top view of another array substrate according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.
Fig. 1 is a schematic top view of an array substrate according to an embodiment of the present invention, and referring to fig. 1, the array substrate includes:
a base substrate 10;
a plurality of scanning lines 110 and a plurality of data lines 120 formed on the substrate 10, the plurality of scanning lines 110 and the plurality of data lines 120 crossing each other in an insulating manner to define a plurality of pixel units 130, and pixel electrodes 131 electrically connected to the data lines 120 are disposed in the pixel units 130;
a plurality of touch traces 140, touch electrodes 150, and a bridge structure 160;
the touch trace 140 is electrically connected to a corresponding one of the touch electrodes 150 through the bridge structure 160; a bridge structure 160 is arranged at the intersection of at least one pixel electrode, and the bridge structure 160 and the pixel electrode 131 are arranged in the same layer; the pixel electrode intersection refers to the intersection of two adjacent rows of pixel electrodes 131 and two adjacent columns of pixel electrodes 131; the pixel electrode 131 adjacent to the bridge-spanning structure 160 is a first-type pixel electrode 1311; the pixel electrodes 131 not adjacent to the bridge-spanning structure 160 are the second-type pixel electrodes 1312;
the pixel electrode 131 includes two terminal electrodes, a first terminal electrode D1 and a second terminal electrode D2, along the extending direction of the data line 120, as a branch electrode D3 located between the first terminal electrode D1 and the second terminal electrode D2 and connecting the first terminal electrode D1 and the second terminal electrode D2; in the extending direction of the scan line 110, the distance between the end electrodes of two adjacent first-type pixel electrodes 1311 is greater than the distance between the end electrodes of two adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312, and is greater than or equal to the distance between the end electrodes of two adjacent second-type pixel electrodes 1312.
For example, in the design of the TED product, one touch electrode 150 may correspond to a plurality of rows and a plurality of columns of pixel units 130, and fig. 1 illustrates a case where only one touch electrode 150 corresponds to two rows and six columns of pixel units 130. One touch electrode 150 may correspond to at least one touch trace 140, and the electrical connection between the touch trace 140 and the touch electrode 150 is realized through at least one bridge structure 160, optionally, in order to realize stable voltage signals at different positions of the touch electrode 150, one touch electrode 150 may also be arranged corresponding to a plurality of touch traces 140, and the electrical connection between the touch trace 140 and the plurality of touch electrodes 150 is realized through the plurality of bridge structures 160, fig. 1 illustrates an example in which only one touch electrode 150 corresponds to one touch trace 140, and the electrical connection between the touch trace 140 and the touch electrode 150 is realized through one bridge structure 160. The bridge-crossing structure 160 is disposed at the intersections between the pixel electrodes 131 in the first row and the pixel electrodes 131 in the second row, and between the pixel electrodes 131 in the third column and the pixel electrodes 131 in the fourth column, where the extending direction of the scan line 110 can be understood as the row direction, and the extending direction of the data line 120 can be understood as the column direction.
Specifically, the distance between the end electrodes of the two adjacent first-type pixel electrodes 1311 includes a distance L1 between the first end electrodes D1 of the two adjacent first-type pixel electrodes 1311 and a distance L1' between the second end electrodes D2 of the two adjacent first-type pixel electrodes 1311; the distance between the end electrodes of the adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312 includes a distance L2 between the first end electrodes D1 of the adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312 and a distance L2' between the second end electrodes D2 of the adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312; the distance between two adjacent second-type pixel electrodes 1312 includes a distance L3 between the first terminal electrodes D1 of two adjacent second-type pixel electrodes 1312 and a distance L3' between the second terminal electrodes D2 of two adjacent second-type pixel electrodes 1312. As shown in fig. 1, the pixel electrodes 131 adjacent to the bridge spanning structure 160 are first-type pixel electrodes 1311, the pixel electrodes not adjacent to the bridge spanning structure 160 are second-type pixel electrodes 1312, and along the extending direction of the scan line 110, the distance between the end electrodes of two adjacent first-type pixel electrodes 1311 is greater than the distance between two adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312, and is greater than or equal to the distance between two adjacent second-type pixel electrodes 1312, it can be understood that the distance L1 between the first end electrodes D1 of two adjacent first-type pixel electrodes 1311 is greater than the distance L2 between the first end electrodes D1 of two adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312, and is greater than or equal to the distance L3 between the first end electrodes D1 of two adjacent second-type pixel electrodes 1312; a distance L1 ' between the second terminal electrodes D2 of the adjacent two first-type pixel electrodes 1311 is greater than a distance L2 ' between the second terminal electrodes D2 of the adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312, and is greater than or equal to a distance L3 ' between the second terminal electrodes D2 of the adjacent two second-type pixel electrodes 1312.
It should be noted that fig. 1 only shows a case that a distance between end electrodes of two adjacent first-type pixel electrodes 1311 is greater than a distance between end electrodes of two adjacent second-type pixel electrodes 1312, fig. 2 is a schematic top view structure diagram of another array substrate provided in an embodiment of the present invention, fig. 2 shows a case that a distance between end electrodes of two adjacent first-type pixel electrodes 1311 is equal to a distance between end electrodes of two adjacent second-type pixel electrodes 1312, and fig. 2 only illustrates four rows and two columns of pixel units 130. As shown in fig. 2, in the pixel units corresponding to the same touch electrode 150, along the extending direction of the scan line 110, a distance L1 between the first end electrodes D1 of two adjacent first-type pixel electrodes 1311 is equal to a distance L3 between the first end electrodes D1 of two adjacent second-type pixel electrodes 1312, and a distance L1 'between the second end electrodes D2 of two adjacent first-type pixel electrodes 1311 is equal to a distance L3' between the second end electrodes D2 of two adjacent second-type pixel electrodes 1312. As shown in fig. 2, the case that the distance between the end electrodes of two adjacent first-type pixel electrodes 1311 is equal to the distance between two adjacent second-type pixel electrodes 1312 occurs when the two adjacent first-type pixel electrodes 1311 and the two adjacent second-type pixel electrodes 1312 are in the same column, that is, the distance between the end electrodes of two adjacent second-type pixel electrodes 1312 in the same column with the two adjacent first-type pixel electrodes 1311 is equal to the distance between the end electrodes of the two adjacent first-type pixel electrodes 1311 along the extending direction of the scan line 110 in the pixel unit corresponding to the same touch electrode 150.
It should be noted that, since the distance between the end electrodes of two adjacent second-type pixel electrodes 1312 disposed in the same column as two adjacent first-type pixel electrodes 1311 is equal to the distance between the end electrodes of the two adjacent first-type pixel electrodes 1311, it can be understood that, in the preparation process of the array substrate, one touch electrode 150 can be electrically connected to the same touch trace 140 through a plurality of bridge structures 160, and a plurality of bridge structures 160 can be disposed at the intersections of two different rows but two same columns of pixel electrodes 131, so as to improve the preparation efficiency, even if the bridge structures 160 are not disposed between the intersections of a certain pixel electrode 131, in order to ensure higher preparation efficiency and luminous efficiency of the display panel, the distance between the end electrodes of the second-type pixel electrodes corresponding to the intersections of the pixel electrodes 131 that do not include the bridge structures 160 is also set to be larger, that is, the distance between the end electrodes of two adjacent second-type pixel electrodes 1312 disposed in the same column as the two adjacent first-type pixel electrodes 1311 is set to be equal to the distance between the end electrodes of the two adjacent first-type pixel electrodes 1311.
In summary, the distance between the end electrodes of two adjacent first-type pixel electrodes 1311 is greater than the distance between the end electrodes of two adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312, and is greater than or equal to the distance between the end electrodes of two adjacent second-type pixel electrodes 1312, so that the distance between the end electrodes of the bridge-spanning structure 160 and the first-type pixel electrodes 1311 can be ensured to be relatively large, it can be ensured that in the preparation process of the array substrate, the preparation of different film layers can be realized without using high-precision equipment, meanwhile, the risk of short circuit between the end electrodes of the bridge-spanning structure 160 and the first-type pixel electrodes 1311 can be reduced, and the array substrate can work normally.
Optionally, the minimum distance between the bridge-spanning structure 160 and the end electrode of the first-type pixel electrode 1311 is greater than or equal to 2.3 μm and less than or equal to 2.5 μm, so that in the process of preparing the bridge-spanning structure 160 and the pixel electrode 131, high-precision exposure equipment is not needed, and the preparation of the gap between the bridge-spanning structure 160 and the end electrode of the first-type pixel electrode 131 can be completed by directly using common low-precision exposure equipment, so that the purchase cost of the high-precision exposure equipment is reduced, and further the production cost of the array substrate is reduced.
Optionally, with continued reference to fig. 1, along the extending direction of the scan line 110, the distance between the end electrodes of the adjacent first-type pixel electrodes 1311 and the second-type pixel electrodes 1312 is smaller than the distance between the end electrodes of the adjacent second-type pixel electrodes 1312.
Optionally, along the extending direction of the scan line 110, the distance between the end electrodes of the first-type pixel electrode 1311 and the second-type pixel electrode 1312 may also be equal to the distance between the end electrodes of the second-type pixel electrodes 1312. It should be noted that, in the embodiment of the present invention, along the extending direction of the scan line 110, only the distance between the end electrodes of two adjacent first-type pixel electrodes 1311 is greater than the distance between the end electrodes of two adjacent first-type pixel electrodes 1311 and second-type pixel electrodes 1312, and is greater than or equal to the distance between the end electrodes of two adjacent second-type pixel electrodes 1312, and the relationship between the distance between the end electrodes of the first-type pixel electrodes 1311 and the second-type pixel electrodes 1312 and the distance between the end electrodes of two adjacent second-type pixel electrodes 1312 is not limited here.
Alternatively, with continued reference to fig. 1, the distance between the branch electrodes D3 of any adjacent pixel electrodes 131 is equal along the extending direction of the scan line 110. As shown in fig. 1, keeping the distances between the branch electrodes D3 of any adjacent pixel electrode 131 equal can ensure that the aperture ratio of the display panel remains unchanged.
Optionally, as shown in fig. 3, fig. 3 is a schematic cross-sectional structure view of the array substrate in fig. 1 along a sectional line a-a', referring to fig. 1 and fig. 3, the bridge structure 160 is electrically connected to the touch trace 140 through the first cross hole M1, and is electrically connected to the touch electrode 150 through the second cross hole M2, when a larger distance is kept between the bridge structure 160 and the terminal electrode of the first-type pixel electrode 1311, the requirement for alignment accuracy between the bridge structure 160 and the first and second cross holes M1 and M2 can be reduced. Optionally, the alignment control of the bridge spanning structure 160 and the first and second cross holes M1 and M2 may be ± 0.8 μ M, that is, the bridge spanning structure 160 may be shifted by 0.8 μ M with respect to the center position of the first or second cross hole M1 or M2, so as to reduce the process precision in the manufacturing process, reduce the manufacturing difficulty, improve the manufacturing efficiency, and improve the product yield.
Optionally, in the array substrate manufacturing process, different film layer structures need to be manufactured through a series of exposure and etching processes, a certain degree of bond size Loss (CD Loss) is caused to different devices in the etching process, when the distance between the bridge-spanning structure 160 and the end electrode of the first-type pixel electrode 1311 is small, the size of the bridge-spanning structure 160 itself is also small, the requirement on the CD Loss in the etching process is strict, and the requirement on the manufacturing process is high. When a larger distance is kept between the bridge spanning structure 160 and the end electrode of the first-type pixel electrode 1311, the requirement for the CD Loss of the first cross hole M1 and the second cross hole M2 can be relaxed, and optionally, the CD Loss of the first cross hole M1 and the second cross hole M2 can be relaxed to 0.8 μ M, so that the process precision in the preparation process can be reduced, the preparation difficulty is reduced, the preparation efficiency is improved, and the product yield is improved.
Optionally, fig. 4 is a schematic top view structure diagram of another array substrate according to an embodiment of the present invention, as shown in fig. 4, the pixel unit 130 may further include a thin film transistor 132, a source 1321 of the thin film transistor 132 is electrically connected to the data line 120, a drain 1322 of the thin film transistor 132 is electrically connected to the first end electrode D1 of the pixel electrode 131, and the source 1321 is located between the branch electrodes D3 of the two columns of pixel electrodes 131. As shown in fig. 4, the source 1321 is located between the branch electrodes D3 of the two columns of pixel electrodes 131 and is no longer located in the same horizontal direction as the drain 1322, i.e., a line connecting the source 1321 and the drain 1322 is not parallel to the scan line 110. The source 1321 is disposed between the branch electrodes D3 of the two rows of pixel electrodes 131, so that a larger distance between the source 1321 and the drain 1322 can be ensured, a short circuit between the source 1321 and the drain 1322 due to a shorter distance can be avoided, and normal operation of the array substrate can be ensured.
Optionally, with continued reference to fig. 3, fig. 3 is a schematic cross-sectional view of the array substrate of fig. 1 along a sectional line a-a'. The touch trace 140 is located on one side of the thin film transistor 132 away from the substrate 10, and a planarization layer 170 is disposed between the thin film transistor 132 and the touch trace 140; a first insulating layer 180 is disposed on a side of the touch trace 140 away from the planarization layer 170; a touch electrode 150 is disposed on a side of the first insulating layer 180 away from the planarization layer 170; a second insulating layer 190 is disposed on a layer of the touch electrode 150 away from the first insulating layer 180; a pixel electrode 131 and the bridge-crossing structure 160 are disposed on a side of the second insulating layer 190 away from the touch electrode 150; the first via M1 penetrates through the first insulating layer 180 and the second insulating layer 190 and exposes the touch trace 140; the second via M2 penetrates through the second insulating layer 190 and exposes the touch electrode 150; the bridge structure 160 fills the first via MI and the second via M2 to electrically connect the touch trace 140 to the corresponding touch electrode 150; the third via M3 penetrates through the first insulating layer 180, the second insulating layer 190 and the planarization layer 170, and exposes the drain 1322 of the tft 132, and one of the terminal electrodes of the pixel electrode 131 is electrically connected to the drain 1322 of the tft 132 through the third via M3.
Optionally, the touch electrode 150 may be reused as a common electrode, and is used as a common electrode in the display process of the display panel, and is matched with the pixel electrode 131 to drive the deflection of the liquid crystal; the touch electrode is used in the touch process to receive the touch signal provided by the touch trace 140, so as to realize the touch function. Optionally, the touch electrode 140 is reused as a common electrode, so that the preparation of the film layer can be reduced, the preparation efficiency is improved, the thickness of the display panel is reduced, and a thinner and lighter display panel is provided.
To sum up, in the array substrate provided in the embodiment of the present invention, the touch trace is electrically connected to a corresponding touch electrode through the bridge-spanning structure, the bridge-spanning structure is disposed at the intersection of at least one pixel electrode, the pixel electrode adjacent to the bridge-spanning structure is a first-type pixel electrode, the pixel electrode not electrically connected to the bridge-spanning structure is a second-type pixel electrode, and the pixel electrode includes two end electrodes and a branch electrode located between the two end electrodes and connected to the two end electrodes along the extending direction of the data line; along the extending direction of the scanning lines, the distance between the end electrodes of two adjacent first pixel electrodes is greater than the distance between the end electrodes of two adjacent first pixel electrodes and the second pixel electrodes, and is greater than or equal to the distance between the end electrodes of two adjacent second pixel electrodes. The bridge-spanning structure keeps a larger distance from the end electrode between the first type of pixel electrode adjacent to the bridge-spanning structure, so that the preparation process of the array substrate is simple in process requirement, the preparation efficiency and the product yield are improved, and the production cost is reduced; in addition, a larger distance is reserved between the bridge-spanning structure and the end electrode of the first-class pixel electrode adjacent to the bridge-spanning structure, so that the short circuit risk between the bridge-spanning structure and the pixel electrode can be reduced while the aperture ratio of the display panel is ensured, and the normal use of the array substrate is ensured.
Fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and referring to fig. 5, the display panel according to an embodiment of the present invention includes the array substrate 1 according to the embodiment and an opposite substrate 2 disposed opposite to the array substrate 1, where the opposite substrate 2 may be a color filter substrate, and may also be a cover plate or other encapsulation layers.
Fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention, and referring to fig. 6, the display device 100 may include the display panel 101 according to any embodiment of the present invention. The display device 100 may be a mobile phone as shown in fig. 6, or may be a computer, a television, an intelligent wearable display device, and the like, which is not particularly limited in this embodiment of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A display panel, comprising: the liquid crystal display panel comprises an array substrate, an opposite substrate and liquid crystal, wherein the opposite substrate is arranged opposite to the array substrate;
the array substrate includes:
a substrate base plate;
a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units, and pixel electrodes electrically connected with the data lines are arranged in the pixel units;
the touch control device comprises a plurality of touch control electrodes, a plurality of touch control routing lines and a bridge crossing structure;
the touch routing is electrically connected with the corresponding touch electrode through the bridge spanning structure; the bridge-spanning structure is arranged at the intersection of at least one pixel electrode, and the bridge-spanning structure and the pixel electrode are arranged on the same layer; the pixel electrode intersection refers to the intersection of two adjacent rows of pixel electrodes and two adjacent columns of pixel electrodes; wherein the pixel electrode adjacent to the bridge spanning structure is a first type of pixel electrode; the pixel electrodes which are not adjacent to the bridge spanning structure are pixel electrodes of a second type;
along the extending direction of the data line, the pixel electrode comprises two end electrodes and a branch electrode which is positioned between the two end electrodes and connected with the two end electrodes, and corners are arranged at the connection positions of the branch electrode and the end electrodes; the number of the branch electrodes in the pixel electrode is the same; along the extension direction of the scanning lines, the distance between the end electrodes of two adjacent first pixel electrodes is greater than the distance between the end electrodes of two adjacent first pixel electrodes and second pixel electrodes, and is greater than or equal to the distance between the end electrodes of two adjacent second pixel electrodes;
the distances between the branch electrodes of any adjacent pixel electrodes are equal along the extension direction of the scanning line;
in the extending direction of the scanning lines, the projections of the end electrodes of the pixel electrodes on the data lines in the same row are overlapped;
the extending direction of the scanning lines is a row direction, and the extending direction of the data lines is a column direction.
2. The display panel according to claim 1, wherein in the plurality of pixel units corresponding to the same touch electrode, along the extending direction of the scan line, a distance between the end electrodes of two adjacent second-type pixel electrodes in the same column with two adjacent first-type pixel electrodes is equal to a distance between the end electrodes of the two adjacent first-type pixel electrodes.
3. The display panel according to claim 1, wherein a distance between the end electrodes of adjacent first-type pixel electrodes and second-type pixel electrodes is smaller than a distance between the end electrodes of two adjacent second-type pixel electrodes along the scan line extending direction.
4. The display panel according to claim 1, wherein a distance between the end electrodes of adjacent first-type and second-type pixel electrodes is equal to a distance between the end electrodes of two adjacent second-type pixel electrodes along the scan line extending direction.
5. The display panel according to any one of claims 1 to 4, wherein the pixel electrode comprises two of the terminal electrodes, which are a first terminal electrode and a second terminal electrode, respectively; along the extension direction of the scanning lines, the distance between the first end electrodes of two adjacent first pixel electrodes is greater than the distance between the first end electrodes of two adjacent first pixel electrodes and the first end electrodes of two adjacent second pixel electrodes, and is greater than or equal to the distance between the first end electrodes of two adjacent second pixel electrodes; along the extending direction of the scanning lines, the distance between the second terminal electrodes of two adjacent first-type pixel electrodes is greater than the distance between the second terminal electrodes of two adjacent first-type pixel electrodes and second-type pixel electrodes, and is greater than or equal to the distance between the second terminal electrodes of two adjacent second-type pixel electrodes.
6. The display panel according to claim 5, wherein the pixel unit further comprises a thin film transistor, a source electrode of the thin film transistor is electrically connected to the data line, and a drain electrode of the thin film transistor is electrically connected to the first terminal electrode of the pixel electrode; the source electrode is positioned between the branch electrodes of the two adjacent columns of the pixel units.
7. The display panel according to claim 6,
the touch control wiring is positioned on one side of the thin film transistor, which is far away from the substrate base plate, and a planarization layer is arranged between the thin film transistor and the touch control wiring;
a first insulating layer is arranged on one side, away from the planarization layer, of the touch routing line;
the side, away from the touch wiring, of the first insulating layer is provided with the touch electrode;
a second insulating layer is arranged on one layer of the touch electrode, which is far away from the first insulating layer;
the pixel electrode and the bridge-crossing structure are arranged on one side, away from the touch electrode, of the second insulating layer;
the first via hole penetrates through the first insulating layer and the second insulating layer and exposes the touch routing; the second via hole penetrates through the second insulating layer and exposes the touch electrode; the bridge spanning structure fills the first via hole and the second via hole, and electrically connects the touch routing with the corresponding touch electrode; a third via hole penetrates through the first insulating layer, the second insulating layer, and the planarization layer, and exposes the drain electrode of the thin film transistor, and the first end electrode of the pixel electrode is electrically connected to the drain electrode of the thin film transistor through the third via hole.
8. The display panel according to claim 1, wherein a minimum distance between the bridge structure and the end electrode of the first-type pixel electrode is greater than or equal to 2.3 μm and less than or equal to 2.5 μm.
9. The display panel according to claim 1, wherein the touch electrode is multiplexed as a common electrode.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| TWI690917B (en) * | 2019-03-13 | 2020-04-11 | 友達光電股份有限公司 | Pixel array substrate |
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