CN107085481B - Array substrate, touch display panel and display device - Google Patents
Array substrate, touch display panel and display device Download PDFInfo
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- CN107085481B CN107085481B CN201710265410.2A CN201710265410A CN107085481B CN 107085481 B CN107085481 B CN 107085481B CN 201710265410 A CN201710265410 A CN 201710265410A CN 107085481 B CN107085481 B CN 107085481B
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- 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
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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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- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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Abstract
The application discloses array substrate, touch-control display panel and display device, wherein, array substrate includes: a display area and a non-display area surrounding the display area; the touch control electrodes are arranged in an array mode and comprise edge touch control electrodes located at edge positions and non-edge touch control electrodes located at non-edge positions, the edge touch control electrodes extend from the display area to the non-display area, and the non-edge touch control electrodes are located in the display area; the pixel electrodes are arranged in an array mode and comprise edge pixel electrodes located at edge positions and non-edge pixel electrodes located at non-edge positions; the orthographic projection of one touch electrode on the array substrate covers the orthographic projection of a plurality of pixel electrodes on the array substrate, the distance between one edge of the edge touch electrode which is completely positioned in the non-display area and the edge pixel electrode corresponding to the edge touch electrode is D1, and D1 is larger than or equal to 8um and smaller than or equal to 12 um. According to the scheme, the potential uniformity of the touch electrode can be improved, and the touch performance of the edge touch electrode can be improved.
Description
Technical Field
The application relates to the technical field of display, in particular to an array substrate, a touch display panel and a display device.
Background
With the continuous development of display technology, touch screens have become popular in people's daily life.
The touch screen can be divided into: an Add On Mode Touch Panel (Add On Touch Panel), an overlay surface Touch Panel (On Cell Touch Panel), and an In Cell Touch Panel (In Cell Touch Panel). Wherein, embedded touch-sensitive screen is the touch-control electrode setting with the touch-sensitive screen in liquid crystal display's inside, can attenuate the holistic thickness of module, and the cost of manufacture that again can greatly reduced touch-sensitive screen receives the favor of consumer and panel manufacturer. The touch screen can be divided into: resistive touch screens, capacitive touch screens, and the like. The capacitive touch screen supports a multi-point touch function, has high light transmittance and low overall power consumption, and is high in contact surface hardness and long in service life.
At present, a common electrode on an existing array substrate is divided into a plurality of blocks in a vertical direction to form a touch electrode array, and the touch electrode array is located in a display area of a touch screen. Generally, the capacitance environment of the touch electrode at the outermost edge of the touch electrode array is different from that of the touch electrode at the non-outer edge, other touch electrodes are arranged around the touch electrode at the non-outer edge, the peripheral touch electrodes interact with the middle touch electrode to generate capacitance, and the touch electrode at the outermost edge has one side or two sides not adjacent to other touch electrodes, that is, the touch electrode at the outermost edge is only adjacent to two or three other touch electrodes and interacts to generate capacitance, so that the capacitance value of the touch electrode at the outermost edge is smaller than that of the touch electrode at the non-outer edge. Therefore, in the prior art, the capacitance of the touch electrode in the touch electrode array is not uniform, so that the potential of the touch electrode in the touch electrode array is not uniform, and the touch performance of the touch electrode at the outermost position is affected.
Disclosure of Invention
In view of this, the present disclosure provides an array substrate, a touch display panel and a display device to improve capacitance uniformity and potential uniformity of a touch electrode on the array substrate and improve touch performance of the touch electrode at an edge position.
In order to solve the technical problem, the following technical scheme is adopted:
in a first aspect, the present application provides an array substrate, comprising:
a display area and a non-display area surrounding the display area;
the touch control electrodes are arranged in an array mode and comprise edge touch control electrodes located at edge positions and non-edge touch control electrodes located at non-edge positions, the edge touch control electrodes extend from the display area to the non-display area, and the non-edge touch control electrodes are located in the display area;
the pixel electrodes are arranged in an array mode and comprise edge pixel electrodes located at edge positions and non-edge pixel electrodes located at non-edge positions;
one the touch-control electrode is in orthographic projection on the array substrate covers a plurality of pixel electrode is in orthographic projection on the array substrate, lie in totally in the marginal touch-control electrode one side in the non-display area with marginal touch-control electrode corresponds the distance between the marginal pixel electrode is D1, 8um is not less than D1 and is not less than 12 um.
Optionally, wherein:
the array substrate further comprises a plurality of sub-pixel units, each sub-pixel unit comprises an edge sub-pixel unit located at an edge position and a non-edge sub-pixel unit located at a non-edge position, each edge sub-pixel unit comprises one edge pixel electrode, and each non-edge sub-pixel unit comprises one non-edge pixel electrode.
Optionally, wherein:
the edge sub-pixel unit is positioned in the display area and further comprises a thin film transistor, and the edge pixel electrode is electrically connected with the drain electrode of the thin film transistor;
an opening area is arranged on the touch electrode, and the connection position of the edge pixel electrode and the drain electrode of the thin film transistor is located in the range defined by the orthographic projection of the opening area of the touch electrode on the array substrate in the orthographic projection of the array substrate.
Optionally, wherein:
the connection position of the edge pixel electrode and the drain electrode of the thin film transistor is located at the center position of the orthographic projection of the opening area of the touch electrode on the array substrate.
Optionally, wherein:
the edge sub-pixel unit is located in the non-display area, and the edge pixel electrode is a virtual electrode.
Optionally, wherein:
the number of the virtual electrodes is more than or equal to 1.
Optionally, wherein:
the array substrate further comprises a plurality of touch signal leads, and each touch electrode is electrically connected with at least one touch signal lead.
Optionally, wherein:
in the display stage, the touch electrode is reused as a common electrode, and a common voltage signal is input;
in the touch control stage, the touch control electrode inputs a touch control signal.
Optionally, wherein:
the array substrate further comprises a plurality of gate lines arranged along the first direction and extending in the second direction, and a plurality of data signal lines arranged along the first direction and extending in the second direction, wherein regions defined by two adjacent gate lines and two adjacent data signal lines are sub-pixel regions, and each sub-pixel region is provided with the sub-pixel unit.
In a second aspect, the present application provides a touch display panel, including the array substrate of the present application.
In a third aspect, the present application provides a display device, including the touch display panel of the present application.
Compared with the prior art, this application array substrate, touch-control display panel and display device, reached following effect:
according to the array substrate, the touch display panel and the display device provided by the invention, the plurality of touch electrodes arranged in an array manner on the array substrate comprise the edge touch electrodes positioned at the edge position and the non-edge touch electrodes positioned at the non-edge position, the edge touch electrodes are positioned beyond the display area and extend from the display area to the non-display area, and the capacitance and the potential of the edge touch electrodes can be compensated by the method, so that the capacitance and the potential of the edge touch electrodes are close to those of the non-edge touch electrodes, the capacitance uniformity and the potential uniformity of the touch electrodes on the whole array substrate are improved, and the touch performance of the touch electrodes positioned at the edge position is favorably improved. In addition, this application designs the distance between the edge pixel electrode that is located in the non-display area completely in the edge touch-control electrode and corresponds with this edge touch-control electrode to be 8um and is less than or equal to D1 and is less than or equal to 12um, on the one hand, can make the electric capacity and the electric potential of edge touch-control electrode more be close to or the same with electric capacity and electric potential of non-edge touch-control electrode, be favorable to improving electric capacity homogeneity and the electric potential homogeneity of touch-control electrode on the whole array substrate more, improve the touch-control performance of the touch-control electrode that is located the marginal position, and be favorable to improving the display effect, on the other hand, it is 8um and is less than or equal to D1 and is less than or equal to 12um to take D1 and. In addition, the edge pixel electrodes extend from the display area to the non-display area, when a finger touches the display area from the non-display area on the touch screen, the edge touch electrodes located in the non-display area can sense touch, and when the edge touch electrodes are completely arranged in the display area, when the finger touches the display area from the non-display area on the touch screen, the edge touch electrodes only start sensing touch when the finger touches the display area, so that when the edge touch electrodes extend to the non-display area, the edge touch electrodes can sense touch when the edge touch electrodes do not display, and thus touch response speed can be improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a first top view of an array substrate provided in the present application;
fig. 2 is a second top view of an array substrate provided in the present application;
fig. 3 is a third top view of the array substrate provided in the present application;
FIG. 4 is an enlarged view of area A in the top view of FIG. 3;
FIG. 5 is a schematic structural diagram of sub-pixel unit division based on FIG. 4;
FIG. 6 is a cross-sectional view taken along line C-C of the structure shown in FIG. 5;
fig. 7 is a fourth top view of the array substrate provided in the present application;
FIG. 8 is an enlarged view of area D in the top view of FIG. 7;
fig. 9 is a fifth top view of the array substrate provided in the present application;
fig. 10 is a sixth top view of an array substrate provided in the present application;
fig. 11 is a schematic view of a display device according to the present application.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
Fig. 1 is a first top view of the array substrate 100 provided in the present application, fig. 2 is a second top view of the array substrate 100 provided in the present application, and fig. 3 is a third top view of the array substrate 100 provided in the present application. As can be seen from the embodiment shown in fig. 1, the array substrate 100 includes: a display area 11 and a non-display area 12 surrounding the display area 11; as can also be seen from the embodiment shown in fig. 2, the array substrate 100 further includes: the touch control electrodes 10 are arranged in an array, and comprise edge touch control electrodes 13 located at edge positions and non-edge touch control electrodes 14 located at non-edge positions, the edge touch control electrodes 13 extend from the display area 11 to the non-display area 12, and the non-edge touch control electrodes 14 are located in the display area 11; as can also be seen from the embodiment shown in fig. 3, the array substrate 100 further includes: a plurality of pixel electrodes 20 arranged in an array, including an edge pixel electrode 21 at an edge position and a non-edge pixel electrode 22 at a non-edge position; the orthographic projection of one touch electrode 10 on the array substrate 100 covers the orthographic projection of a plurality of pixel electrodes 20 on the array substrate 100, the distance between one side of the edge touch electrode 13 completely positioned in the non-display area 12 and the edge pixel electrode 21 corresponding to the edge touch electrode 13 is D1, and D1 is more than or equal to 8um and less than or equal to 12 um. The edge touch electrode 13 refers to a circle of the touch electrodes 10 located at the outermost periphery, that is, a circle of the touch electrodes located closest to four sides of the array substrate 100.
The edge pixel electrode 21 referred to herein refers to a circle of pixel electrodes located at the outermost periphery, that is, a circle of pixel electrodes located closest to four sides of the array substrate 100 in the array of pixel electrodes 20. Specifically, referring to the embodiment of FIG. 4, FIG. 4 is an enlarged view of area A in the top view of FIG. 3. In the embodiment shown in fig. 4, the edge touch electrode 13 is located beyond the display area 11, extends from the display area 11 to the non-display area 12, and one side b of the edge touch electrode 13 is completely located in the non-display area 12. The orthographic projection of the edge touch electrode 13 on the array substrate 100 covers the orthographic projection of 9 pixel electrodes 20 on the array substrate 100, and the 9 pixel electrodes 20 comprise 5 edge pixel electrodes 21 and 4 non-edge pixel electrodes 22. The distance 8um between one side b of the non-display area 12 and the edge pixel electrode 21 corresponding to the edge touch electrode 13 is greater than or equal to 8um and less than or equal to D1 and less than or equal to 12 um. In the present application, the edge pixel electrode 21 extends from the display area 11 to the non-display area 12, and this way can compensate the capacitance and potential of the edge touch electrode 13, so that the capacitance and potential of the edge touch electrode 13 are close to those of the non-edge touch electrode 14, thereby improving the capacitance uniformity and potential uniformity of the touch electrode 10 on the entire array substrate 100, and facilitating to improve the touch performance of the touch electrode 10 located at the edge position. In addition, in the present application, the distance between one side of the edge touch electrode 13 completely located in the non-display area 12 and the edge pixel electrode 21 corresponding to the edge touch electrode 13 is designed to be 8um or more and D1 or more and 12um or less, on one hand, the capacitance and the potential of the edge touch electrode 13 are closer to or the same as the capacitance and the potential of the non-edge touch electrode 14, which is more beneficial to improving the capacitance uniformity and the potential uniformity of the touch electrode 10 on the entire array substrate 100, improving the touch performance of the touch electrode 10 located at the edge position, and being beneficial to improving the display effect, on the other hand, taking D1 as 8um or more and D1 or more and 12um or less does not widen the frame size of the display device, and avoids affecting the size of the frame of the display device. In addition, in the present application, the edge pixel electrode 21 extends from the display area 11 to the non-display area 12, when a finger touches the display area 11 from the non-display area 12, the edge touch electrode 13 located in the non-display area 12 can sense a touch, and if the edge touch electrode 13 is completely disposed in the display area, when the finger touches the display area 11 from the non-display area 12, the edge touch electrode 13 starts sensing a touch only when the finger touches the display area, so that when the edge touch electrode 13 extends to the non-display area, the edge touch electrode 13 can sense a touch in the non-display area, and thus, the touch response speed can be increased.
In the embodiment shown in fig. 3 and 4, the orthographic projection of one touch electrode 10 on the array substrate 100 covers the orthographic projections of 9 pixel electrodes 20 on the array substrate 100, except for this implementation, the number of the orthographic projections of the pixel electrodes 20 on the array substrate 100 covered by the orthographic projection of one touch electrode on the array substrate 100 may be other, and the number is not specifically limited in the present application.
Optionally, fig. 5 is a schematic structural diagram of dividing the sub-pixel units 30 based on fig. 4, the array substrate 100 in the present application further includes a plurality of sub-pixel units 30, each sub-pixel unit 30 includes an edge sub-pixel unit 31 located at an edge position and a non-edge sub-pixel unit 32 located at a non-edge position, each edge sub-pixel unit 31 includes an edge pixel electrode 21, and each non-edge sub-pixel unit 32 includes a non-edge pixel electrode 22.
Alternatively, in the embodiments shown in fig. 3, 4 and 5, the edge sub-pixel units 31 are all located in the display region 11, fig. 6 is a cross-sectional view taken along line C-C of the structure shown in fig. 5, the edge sub-pixel unit 31 further includes a thin film transistor 40, and the edge pixel electrode 21 is electrically connected to the drain 41 of the thin film transistor 40; the touch electrode 10 is provided with an opening area 18, and the connection position of the edge pixel electrode 21 and the drain 41 of the thin film transistor 40 is located in the range defined by the orthographic projection of the opening area of the touch electrode 10 on the array substrate 100 at the orthographic projection of the array substrate 100.
Specifically, as can be seen from the embodiment shown in fig. 6, a buffer layer 91 is disposed on the substrate 90, the thin film transistor 40 is formed on the buffer layer 91, and the touch electrode 10 and the edge pixel electrode 21 are sequentially disposed on the thin film transistor 40. The touch electrode 10 comprises an opening area 18, the edge pixel electrode 21 is connected with the drain 41 of the thin film transistor 40 through the via 19, and the connection position of the edge pixel electrode 21 and the drain 41 of the thin film transistor 40 is located in the range defined by the orthographic projection of the opening area of the touch electrode 10 on the array substrate 100 at the orthographic projection of the array substrate 100. In the embodiment shown in fig. 6, the edge pixel electrodes 21 are located in the display area 11, each edge pixel electrode 21 plays a practical role in the touch and display processes, and the functions of each edge pixel electrode 21 are controlled by different tfts 40. Since the touch electrode 10 is further disposed between the drain electrode 41 of the thin film transistor 40 and the edge pixel electrode 21, in order to electrically connect the drain electrode 41 of the thin film transistor 40 and the edge pixel electrode 21, the opening region 18 is disposed on the touch electrode 10.
Optionally, with continued reference to fig. 6, the connection between the edge pixel electrode 21 and the drain 41 of the thin film transistor 40 is located at a central position of the orthographic projection of the array substrate 100 where the opening area of the touch electrode 10 is located on the orthographic projection of the array substrate 100. That is to say, the via hole 19 between the edge pixel electrode 21 and the drain 41 of the thin film transistor 40 passes through the center of the opening area of the touch electrode 10, and with this design, the edge pixel electrode 21 and the drain 41 of the thin film transistor 40 can be reliably electrically connected, and meanwhile, the via hole 19 connecting the edge pixel electrode 21 and the drain 41 of the thin film transistor 40 can be prevented from being electrically connected to the touch electrode 10, which is beneficial to preventing the normal operation of the array substrate 100 from being affected after the via hole 19 is electrically connected to the touch electrode 10.
Alternatively, fig. 7 is a fourth top view of the array substrate 100 provided in the present application, and fig. 8 is an enlarged view of a region D in the top view shown in fig. 7. In the embodiment shown in fig. 7 and 8, the edge sub-pixel unit 31 is located in the non-display region 12, and the edge pixel electrode 21 is a dummy electrode. At this time, the thin film transistor 40 is not included in the edge sub-pixel unit 31 in the non-display area 12, the edge pixel electrode 21 in the edge sub-pixel unit 31 is a dummy electrode and is not connected to the thin film transistor 40, and the dummy electrode does not perform an actual touch and display function during the touch and display processes of the display device. Considering that in the manufacturing process of the array substrate 100, especially when the photolithography process transits from the low light stage to the high light stage, the pixel electrode 20 at the edge position will be affected by the process, so that the pixel electrode 20 at the edge position and the pixel electrode 20 at the middle position are not uniform, the present application sets the dummy electrode as the dummy pixel electrode in the non-display area 12 of the array substrate 100, that is, the pixel electrode 20 at the edge position is set as the dummy pixel electrode and is set in the non-display area 12, so that the effect caused by the photolithography process can be applied to the dummy electrode at the edge position, and the pixel electrode that really plays touch and display roles will not be affected, thereby improving the uniformity of the pixel electrode that actually plays roles, and being beneficial to improving the display effect of the display device.
Optionally, the number of the virtual electrodes disposed in the non-display area 12 is greater than or equal to 1. The one or more virtual electrodes are arranged, so that adverse effects caused by the photoetching process can be completely applied to the one or more virtual electrodes, the adverse effects caused by the photoetching process on the pixel electrode 20 which really plays a touch and display role can be reduced to the maximum extent, the uniformity of the pixel electrode 20 which really plays the touch and display role is greatly improved, and the display effect of the display device can be effectively improved.
When the distance between one side b of the edge touch electrode 13 completely located in the non-display area and the edge pixel electrode 21 corresponding to the edge touch electrode is calculated, and when the edge pixel electrode 21 is a virtual electrode, the distance here refers to the distance D1 between one side b of the edge touch electrode 13 completely located in the non-display area and the virtual electrode corresponding to the edge touch electrode 13, for example, the embodiment shown in fig. 8; when the edge pixel electrode 21 is located in the display area, the edge pixel electrode 21 is a pixel electrode that actually performs a touch and display function, and the distance herein refers to a distance D1 between one side b of the edge touch electrode 13 that is completely located in the non-display area and a pixel electrode corresponding to the edge touch electrode that actually performs a touch and display function, such as the embodiment shown in fig. 4.
Optionally, fig. 9 is a fifth top view of the array substrate 100 provided in the present application, the array substrate 100 further includes a plurality of touch signal leads 50, each touch electrode 10 is electrically connected to at least one touch signal lead 50, in the embodiment shown in fig. 9, each touch electrode 10 is electrically connected to one touch signal lead 50, the touch electrode 10 is electrically connected to the touch signal lead 50 through a via 51, in the embodiment, each touch signal lead 50 connects only one touch electrode 10 to the control circuit 400, and is insulated from other touch electrodes 10. In the present application, a touch signal lead 50 is introduced, and the control circuit 400 can send a control signal to the touch electrode 10 through the touch signal lead 50 to control the operation of the touch electrode 10. It should be noted that, in the present application, the number of the touch signal leads 50 connected to each touch electrode 10 is not limited, and the number of the touch signal leads 50 connected to each touch electrode 10 may be determined according to actual situations in an actual production process.
Optionally, the working stage of the array substrate 100 in the present application includes a display stage and a touch stage, and in the display stage, the touch electrode 10 is reused as a common electrode to input a common voltage signal; in the touch stage, the touch electrode 10 inputs a touch signal. According to the touch electrode 10 and the manufacturing method thereof, the touch electrode 10 is multiplexed as the common electrode in the display stage, the process of independently manufacturing the touch electrode 10 for the array substrate 100 is avoided, the production process is reduced, the cost is saved, and meanwhile, the improvement of the production efficiency is facilitated.
Specifically, it can be seen from the embodiment shown in fig. 9 that each touch signal lead line 50 connects one touch electrode 10 to the control circuit 400. In the touch stage, the control circuit 400 sends the touch signal to the touch signal lead 50, and the touch signal lead 50 transmits the touch signal to the touch electrode 10 connected thereto, so as to implement the touch function of the display device. In the display stage, the control circuit 400 sends the common signal to the touch signal lead 50, and then the touch signal lead 50 transmits the common signal to the touch electrode 10 connected thereto, thereby implementing the normal display function of the display device.
In the touch control stage, when the array substrate is touched by a finger, the finger is capacitively coupled with the touch control electrode, so that the capacitance of the touch control electrode changes, and the touch control position is determined according to the change of the current signal output by coupling, thereby realizing the touch control of the array substrate.
Optionally, fig. 10 is a sixth top view of the array substrate 100 provided in the present application, and as can be seen from the embodiment shown in fig. 10, the array substrate 100 further includes a plurality of gate lines 61 arranged along the first direction and extending in the second direction, a plurality of data signal lines 62 arranged along the first direction and extending in the second direction, an area defined by two adjacent gate lines 61 and two adjacent data signal lines 62 is a sub-pixel area 63, and a sub-pixel unit 30 is disposed in each sub-pixel area 63. Specifically, the sub-pixel unit 30 may further include a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit, and in other embodiments, may further include a white sub-pixel unit, where the kind of the sub-pixel is not limited. When different colors are required to be displayed, the sub-pixels respectively emit light with different brightness, and because the sub-pixels are very small in size, the sub-pixels can be mixed into the required colors visually, so that the array substrate can finish different image display according to the control of the thin film transistor.
Based on the same inventive concept, the present application further provides a touch display panel, including the array substrate 100 in the above embodiments of the present application. In the present application, the embodiment of the touch display panel can refer to the embodiment of the array substrate 100, and repeated details are not repeated here.
Based on the same inventive concept, the present application further provides a display device 300, referring to fig. 11, where fig. 11 is a schematic diagram of a structure of the display device provided by the present application, including the touch display panel 200 in the present application. The display device 300 provided by the present application may be: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. In the present application, the embodiment of the display device 300 can refer to the above-mentioned embodiment of the touch display panel, and repeated descriptions thereof are omitted here.
According to the embodiments, the application has the following beneficial effects:
according to the array substrate, the touch display panel and the display device provided by the invention, the plurality of touch electrodes arranged in an array manner on the array substrate comprise the edge touch electrodes positioned at the edge position and the non-edge touch electrodes positioned at the non-edge position, the edge touch electrodes are positioned beyond the display area and extend from the display area to the non-display area, and the capacitance and the potential of the edge touch electrodes can be compensated by the method, so that the capacitance and the potential of the edge touch electrodes are close to those of the non-edge touch electrodes, the capacitance uniformity and the potential uniformity of the touch electrodes on the whole array substrate are improved, and the touch performance of the touch electrodes positioned at the edge position is favorably improved. In addition, this application designs the distance between the edge pixel electrode that is located in the non-display area completely in the edge touch-control electrode and corresponds with this edge touch-control electrode to be 8um and is less than or equal to D1 and is less than or equal to 12um, on the one hand, can make the electric capacity and the electric potential of edge touch-control electrode more be close to or the same with electric capacity and electric potential of non-edge touch-control electrode, be favorable to improving electric capacity homogeneity and the electric potential homogeneity of touch-control electrode on the whole array substrate more, improve the touch-control performance of the touch-control electrode that is located the marginal position, and be favorable to improving the display effect, on the other hand, it is 8um and is less than or equal to D1 and is less than or equal to 12um to take D1 and. In addition, the edge pixel electrodes extend from the display area to the non-display area, when a finger touches the display area from the non-display area on the touch screen, the edge touch electrodes located in the non-display area can sense touch, and when the edge touch electrodes are completely arranged in the display area, when the finger touches the display area from the non-display area on the touch screen, the edge touch electrodes only start sensing touch when the finger touches the display area, so that when the edge touch electrodes extend to the non-display area, the edge touch electrodes can sense touch when the edge touch electrodes do not display, and thus touch response speed can be improved.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (11)
1. An array substrate, comprising:
a display area and a non-display area surrounding the display area;
the touch control electrodes are arranged in an array mode and comprise edge touch control electrodes located at edge positions and non-edge touch control electrodes located at non-edge positions, the edge touch control electrodes extend from the display area to the non-display area, and the non-edge touch control electrodes are located in the display area;
the pixel electrodes are arranged in an array mode and comprise edge pixel electrodes located at edge positions and non-edge pixel electrodes located at non-edge positions;
one the touch-control electrode is in orthographic projection on the array substrate covers a plurality of pixel electrode is in orthographic projection on the array substrate, lie in totally in the marginal touch-control electrode one side in the non-display area with marginal touch-control electrode corresponds the distance between the marginal pixel electrode is D1, 8um is not less than D1 and is not less than 12 um.
2. The array substrate of claim 1, wherein the array substrate further comprises a plurality of sub-pixel units, the sub-pixel units comprise edge sub-pixel units located at edge positions and non-edge sub-pixel units located at non-edge positions, each of the edge sub-pixel units comprises one of the edge pixel electrodes, and each of the non-edge sub-pixel units comprises one of the non-edge pixel electrodes.
3. The array substrate of claim 2, wherein the edge sub-pixel unit is located in the display region, the edge sub-pixel unit further comprises a thin film transistor, and the edge pixel electrode is electrically connected to a drain electrode of the thin film transistor;
an opening area is arranged on the touch electrode, and the connection position of the edge pixel electrode and the drain electrode of the thin film transistor is located in the range defined by the orthographic projection of the opening area of the touch electrode on the array substrate in the orthographic projection of the array substrate.
4. The array substrate of claim 3, wherein the connection point of the edge pixel electrode and the drain electrode of the thin film transistor is located at a central position of an orthographic projection of the array substrate of the opening area of the touch electrode.
5. The array substrate of claim 2, wherein the edge sub-pixel unit is located in the non-display region, and the edge pixel electrode is a dummy electrode.
6. The array substrate of claim 5, wherein the number of the dummy electrodes is greater than or equal to 1.
7. The array substrate of claim 1, further comprising a plurality of touch signal leads, wherein each touch electrode is electrically connected to at least one of the touch signal leads.
8. The array substrate of claim 1,
in the display stage, the touch electrode is reused as a common electrode, and a common voltage signal is input;
in the touch control stage, the touch control electrode inputs a touch control signal.
9. The array substrate of claim 2, further comprising a plurality of gate lines extending in a first direction and a plurality of data signal lines extending in a second direction, wherein the areas defined by two adjacent gate lines and two adjacent data signal lines are sub-pixel areas, and each sub-pixel area is provided with the sub-pixel unit.
10. A touch display panel comprising the array substrate according to any one of claims 1 to 9.
11. A display device comprising the touch display panel according to claim 10.
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Families Citing this family (11)
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| CN107561723B (en) | 2017-10-13 | 2020-05-05 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN108170317B (en) * | 2018-01-05 | 2021-01-26 | 京东方科技集团股份有限公司 | Array substrate |
| CN108762542B (en) * | 2018-03-30 | 2021-05-14 | 上海天马微电子有限公司 | Display panel and display device |
| CN108646451B (en) * | 2018-04-28 | 2021-07-30 | 上海中航光电子有限公司 | Display panel and display device |
| TWI684125B (en) * | 2018-06-12 | 2020-02-01 | 友達光電股份有限公司 | Touch display panel |
| KR102554461B1 (en) | 2018-07-26 | 2023-07-10 | 엘지디스플레이 주식회사 | Stretchable display device |
| CN109343739B (en) * | 2018-10-16 | 2023-04-07 | 京东方科技集团股份有限公司 | Touch display screen, manufacturing method thereof and touch display device |
| CN110297562B (en) * | 2019-06-27 | 2021-01-05 | 厦门天马微电子有限公司 | Display driving method, display panel and display device |
| CN110888564B (en) * | 2019-11-26 | 2024-04-09 | 京东方科技集团股份有限公司 | Touch unit, touch electrode group, touch display panel and device |
| CN113010042B (en) * | 2021-02-26 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Touch display panel |
| WO2024103235A1 (en) * | 2022-11-14 | 2024-05-23 | 京东方科技集团股份有限公司 | Display panel and array substrate |
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