CN114356138A - Touch display panel and display device - Google Patents
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- CN114356138A CN114356138A CN202111654078.1A CN202111654078A CN114356138A CN 114356138 A CN114356138 A CN 114356138A CN 202111654078 A CN202111654078 A CN 202111654078A CN 114356138 A CN114356138 A CN 114356138A
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Abstract
The invention discloses a touch display panel and a display device, wherein the touch display panel can comprise: a substrate; the scanning line, the data line, the pixel driving circuit, the pixel electrode, the common electrode and the touch control wiring are arranged on the substrate; the data lines and the touch routing lines are arranged on the same layer and extend along the column direction; the scanning lines extend along the row direction, are insulated from the data lines and are crossed to define sub-pixels; the sub-pixels comprise corresponding pixel driving circuits and pixel electrodes; the pixel electrode is electrically connected with the adjacent scanning line and the data line through the corresponding pixel driving circuit; the common electrode comprises a plurality of independent touch electrodes; each touch wire is electrically connected with the corresponding touch electrode; the length of the sub-pixels in the row direction is greater than their length in the column direction. According to the technical scheme provided by the invention, the process difficulty of arranging the touch wiring and the data line on the same layer can be reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch display panel and a display device.
Background
With the development of display technology, touch display panels have been widely accepted and used by people. The touch display panel combines the touch panel and the display panel into a whole by adopting an embedded touch technology, so that the display panel has the functions of displaying and sensing touch input at the same time, is widely applied to various electronic products such as mobile phones, televisions, tablet computers, notebook computers and desktop computers, and is called as the mainstream of display devices.
The touch display panel can be divided into an on-cell (on-panel) type, an in-cell (in-panel) type and an Out-cell (external-hanging) type according to different structures, wherein the in-cell type is suitable for the design of a small-size panel due to the characteristic of light weight and thinness, but the touch routing and data lines of the in-cell type display panel adopt the same layer of metal, so that the routing space is smaller, and the process manufacturing difficulty is increased.
Disclosure of Invention
The embodiment of the invention provides a touch display panel and a display device, which are used for reducing the process difficulty of the touch display panel.
In a first aspect, an embodiment of the present invention provides a touch display panel, including: a substrate; the scanning line, the data line, the pixel driving circuit, the pixel electrode, the common electrode and the touch control wiring are arranged on the substrate;
the data lines and the touch routing lines are arranged on the same layer and extend along the column direction; the scanning lines extend along the row direction, are insulated from the data lines and are crossed to define sub-pixels;
the sub-pixels comprise corresponding pixel driving circuits and pixel electrodes; the pixel electrode is electrically connected with the adjacent scanning line and the data line through the corresponding pixel driving circuit; the common electrode comprises a plurality of independent touch electrodes; each touch wire is electrically connected with the corresponding touch electrode;
the length of the sub-pixels in the row direction is greater than their length in the column direction.
In a second aspect, an embodiment of the present invention further provides a display device, including the touch display panel provided in any embodiment of the present invention.
In the invention, the touch display panel is an embedded touch panel, and the data lines and the touch routing lines are arranged on the same layer and extend along the column direction. The scan lines extend along the row direction and intersect with the data lines to define sub-pixels, each sub-pixel includes a pixel electrode and a pixel driving circuit, the scan lines and the data lines adjacent to the sub-pixels drive the pixel electrodes, and the touch traces are used for being electrically connected with the corresponding touch electrodes.
Drawings
Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a comparative example of a touch display panel according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the area A in FIG. 1;
FIG. 4 is a schematic sectional view taken along line b1-b 1' of FIG. 3;
FIG. 5 is a schematic cross-sectional view taken along line b2-b 2' of FIG. 3;
fig. 6 is a schematic structural diagram of another touch display panel according to an embodiment of the present invention;
FIG. 7 is a schematic view of another enlarged structure of the area A in FIG. 1;
FIG. 8 is a schematic cross-sectional view taken along line b3-b 3' of FIG. 7;
FIG. 9 is a schematic cross-sectional view taken along line b4-b 4' of FIG. 7;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
An embodiment of the present invention provides a touch display panel, including: a substrate; the scanning line, the data line, the pixel driving circuit, the pixel electrode, the common electrode and the touch control wiring are arranged on the substrate;
the data lines and the touch routing lines are arranged on the same layer and extend along the column direction; the scanning lines extend along the row direction, are insulated from the data lines and are crossed to define sub-pixels;
the sub-pixels comprise corresponding pixel driving circuits and pixel electrodes; the pixel electrode is electrically connected with the adjacent scanning line and the data line through the corresponding pixel driving circuit; the common electrode comprises a plurality of independent touch electrodes; each touch wire is electrically connected with the corresponding touch electrode;
the length of the sub-pixels in the row direction is greater than their length in the column direction.
In the embodiment of the invention, the data lines and the touch routing lines of the touch display panel are arranged on the same layer and extend along the column direction. The scan lines extend along the row direction and intersect with the data lines to define sub-pixels, each sub-pixel includes a pixel electrode and a pixel driving circuit, the scan lines and the data lines adjacent to the sub-pixels drive the pixel electrodes, and the touch traces are used for being electrically connected with the corresponding touch electrodes.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention, as shown in fig. 1, the touch display panel includes a substrate 11, and a scan line 12, a data line 13, a pixel driving circuit 14, a pixel electrode 15, a common electrode 16, and a touch trace 17 on the substrate 11. The scanning lines 12 extend along the row direction X and are sequentially arranged along the column direction Y, and the data lines 13 and the touch traces 17 extend along the column direction Y and are sequentially arranged along the X direction. In this embodiment, the touch display panel is in-cell type, and the data lines 13 and the touch traces 17 are disposed on the same layer, so as to reduce the number of film layers of the touch display panel, thereby reducing the thickness of the entire touch display panel. The scan lines 12 and the data lines 13 intersect to define respective sub-pixels 18. Each sub-pixel 18 can emit light with a set color to display on the touch display panel. Each sub-pixel 18 includes a pixel driving circuit 14 and a pixel electrode 15 connected to each other, and the scanning line 12 and the data line 13 adjacent to the sub-pixel 18 are electrically connected to the pixel driving circuit 14 of the sub-pixel 18 for driving the pixel electrode 15 through the pixel driving circuit 14 such that a voltage difference is provided between the pixel electrode 15 and the common electrode 16, so that the sub-pixel 18 emits light.
In this embodiment, the common electrode 16 includes a plurality of independent touch electrodes 161, optionally, a vertical projection of the touch electrode 161 in the plane of the substrate 11 covers a plurality of sub-pixels 18, and each touch trace 17 can be electrically connected to its corresponding touch electrode 161, and is used to input a touch detection signal to the touch electrode 161 and obtain a touch sensing signal from the touch electrode 161, so as to identify a touch operation.
It is to be noted that, in the present embodiment, the length L1 of the sub-pixel 18 in the row direction X is greater than the length L2 thereof in the column direction Y. That is, the sub-pixels 18 extend in the row direction X. Therefore, in the present embodiment, the sub-pixel 18 is designed transversely, so that the distance between the touch trace 17 and the data line 13 can be increased properly, for example, the distance can reach more than 2 micrometers, the etching process can reach, and the touch trace 17 and the data line 13 are not easily broken or adhered. The process difficulty is reduced, and the yield of the touch display panel is improved. Compared with the sub-pixels designed longitudinally, as shown in fig. 2, fig. 2 is a schematic structural diagram of a comparative example of a touch display panel provided by the embodiment of the present invention, in fig. 2, the length L1 'of the sub-pixel 18 in the row direction X is smaller than the length L2' of the sub-pixel in the column direction Y, that is, the sub-pixel 18 'is designed longitudinally, and for the longitudinally designed sub-pixel 18', widening of the pitch of the adjacent sub-pixel 18 'in the row direction X means reducing the size of the sub-pixel 18' in the row direction X, while reducing the size of the sub-pixel 18 'in the row direction X greatly reduces the aperture ratio of the touch display panel, so that the requirement for the aperture ratio is high, and generally tends to reduce the pitch of the adjacent sub-pixel 18' in the row direction X, thereby causing the pitch compression between the touch panel 17 'and the trace data line 13', which causes difficulty in the process. In the embodiment, the sub-pixels 18 are designed longitudinally, and the influence of the distance between the adjacent sub-pixels 18 in the row direction X on the aperture ratio of the touch display panel is small, so that the distance between the adjacent sub-pixels 18 in the row direction X can be properly increased, the distance between the touch traces 17 and the data lines 13 is further increased, and the process difficulty is reduced.
With continued reference to fig. 1, optionally, a plurality of sub-pixels 18 may constitute one pixel unit 181; the pixel unit 181 includes at least a first color sub-pixel 182 and a second color sub-pixel 183; the plurality of sub-pixels 18 in the pixel unit 181 are arranged in order in the column direction Y; each sub-pixel 18 in the pixel unit 181 is connected to the same data line.
The sub-pixels 18 can form a pixel unit 181, and each pixel unit 181 includes sub-pixels 18 of different colors to display light of any color. Each pixel unit 181 includes at least a first color sub-pixel 182 and a second color sub-pixel 183, and each pixel unit 181 may include two color sub-pixels, for example, each pixel unit 181 may include a blue sub-pixel and a yellow sub-pixel. Of course, each pixel unit 181 may also include three or more color sub-pixels 18, and as shown in fig. 1, each pixel unit 181 includes a first color sub-pixel 182, a second color sub-pixel 183, and a third color sub-pixel 184. Illustratively, the first color sub-pixel 182 is a red sub-pixel, the second color sub-pixel 183 is a blue sub-pixel, and the third color sub-pixel 184 is a green sub-pixel.
The sub-pixels 18 in the pixel unit 181 are sequentially arranged along the column direction Y, so that the sub-pixels 18 of different colors in the same pixel unit 181 share one data line 13, and compared with the longitudinally arranged sub-pixels 18 ', as shown in fig. 2, one pixel unit 181' is sequentially arranged along the row direction X, and the pixel unit 181 'in fig. 2 includes a first color sub-pixel 182', a second color sub-pixel 183 ', and a third color sub-pixel 184', and each color sub-pixel 18 'corresponds to one data line 13', so that one pixel unit 181 'occupies 3 data lines 13'. Compared with the touch display panel shown in fig. 2, the number of the data lines 13 in fig. 1 is one third of the number of the data lines 13' in fig. 2, and it is not necessary to match a multiplexing MUX circuit at the edge of the touch display panel, which is known that the space requirement of the existing multiplexing MUX circuit is about 200 μ.
Fig. 3 is an enlarged structural view of a region a in fig. 1, fig. 4 is a sectional view taken along a line b1-b1 'in fig. 3, and fig. 5 is a sectional view taken along a line b2-b 2' in fig. 3. In order to detail the structure of the pixel driving circuit, the pixel electrode and the common electrode are not shown in fig. 3, and a part of the structure is omitted in the cross-sectional views shown in fig. 4 and 5, only the source and drain layers and the above film layers are described in detail, which is only illustrated in fig. 4 and 5, and optionally, the pixel driving circuit includes: a driving transistor T1; the driving transistor T1 includes a source D1 and a drain S1; the source electrode S1 and the drain electrode D1 are arranged at the same layer as the data line 13; the source S1 is connected to the corresponding data line 13; the drain electrode D1 is electrically connected to the corresponding pixel electrode 15.
In this embodiment, the pixel driving circuit at least includes the driving transistor T1, and the pixel driving circuit may generally have a circuit structure such as a 2T1C circuit or a 7T1C circuit, and the specific structure of the pixel driving circuit is not particularly limited in this embodiment. The driving transistor T1 includes a source D1 and a drain S1, the source D1 and the drain S1 are disposed on the same layer and are on the same layer as the data line 13, wherein the source S1 is connected to the corresponding data line 13, and the drain D1 is connected to the corresponding pixel electrode 15, so that the data line 13 can supply power to the pixel electrode 15 through the driving transistor T1. Optionally, with continued reference to fig. 3, the driving transistor T1 further includes an active layer 141, the active layer 141 is electrically connected to the source D1 and the drain S1, respectively, and the active layer 141 partially overlaps the scan line 12 on the plane of the substrate 11, and the overlapping portion of the active layer 141 and the scan line 12 forms a gate, so that the driving transistor T1 can output a driving signal to the pixel electrode 15 under the driving of a scan signal on the gate and a data signal on the drain S1. Optionally, in the present embodiment, the active layer 141 overlaps the scan line 12 twice to form a double gate structure, so as to enhance the driving performance of the driving transistor T1.
With continued reference to fig. 3 to fig. 5, optionally, the data line 13 and the adjacent touch trace 17 are disposed at a position spaced apart from the drain D1 of the sub-pixel 18 connected to the data line 13. That is, in this embodiment, the touch trace 17 and the data line 13 are respectively disposed on two opposite sides of the drain D1 of the sub-pixel 18 connected to the data line 13, so as to further increase the distance between the touch trace 17 and the data line 13, reduce the process difficulty of the touch display panel, avoid the touch trace 17 and the data line 13 from being broken or adhered during the manufacturing process, and improve the production efficiency and the production yield of the panel.
Optionally, the distance h1 between the data line 13 and the drain D1 of the sub-pixel 18 connected thereto is greater than the first set distance; the distance h2 between the touch trace 17 and the drain D1 of the sub-pixel 18 connected with the data line 13 is greater than a second set distance; the first set distance and the second set distance are equal to 2 micrometers.
In this embodiment, the drain D1 of the sub-pixel 18 is disposed between the data line 13 and the touch trace 17, and although the distance between the data line 13 and the touch trace 17 is relatively large, the drain D1 in the middle thereof is also disposed on the same layer as the data line 13 and the touch trace 17, so that the distance h1 before the drain D1 of the sub-pixel 18 connected to the data line 13 and the distance h2 between the touch trace 17 and the drain D1 of the sub-pixel 18 need to be controlled, and the distances h1 and h2 are both greater than 2 micrometers, thereby further reducing the process difficulty of the touch display panel, avoiding the situation that the touch trace 17 and the data line 13 are in contact with the drain D1 during the manufacturing process, and improving the panel production efficiency and the production yield. It should be noted that, in this embodiment of the present invention, the distance h1 refers to a distance between the edge of the data line 13 near the side of the drain D1 of the sub-pixel 18 connected to the data line and the edge of the drain D1 of the sub-pixel 18 near the side of the data line 13, and similarly, the distance h2 refers to a distance between the edge of the touch trace 17 near the side of the drain D1 of the sub-pixel 18 and the edge of the drain D1 of the sub-pixel 18 near the side of the touch trace 17.
With continued reference to fig. 3, optionally, the touch trace 17 may further include: an extension terminal 171; the extending direction of the extending terminals 171 intersects the column direction Y; the touch trace 17 is electrically connected with the corresponding touch electrode 161 through a via hole; the vias include a first via K1, and an orthographic projection of the first via K1 is located within the extended terminal 171 in a plane parallel to the substrate 11; in a plane parallel to the substrate 11, an orthographic projection of the first via K1 is located between the touch trace 17 and the data line 13.
Specifically, the touch trace 17 includes an extending terminal 171 extending from a side surface of the touch trace 17, the extending terminal 171 and the corresponding touch electrode 161 connected thereto have an overlapping area on the plane of the substrate 11, and in this embodiment, a first via hole K1 is formed in the overlapping area, so that the extending terminal 171 is electrically connected to the corresponding touch electrode 161 through the first via hole K1. The extension terminal 171 and the first via hole K1 are also disposed between the touch trace 17 and the data line 13 to increase the distance between the touch trace 17 and the data line 13, and the drain D1, the extension terminal 171 and the first via hole K1 are disposed between the touch trace 17 and the data line 13, so that the pixel driving circuit is densely disposed, the occupied space is small, the light emitting area of the sub-pixel is increased, and the display effect of the panel is improved.
With continued reference to fig. 3, optionally, the touch display panel may further include: the first insulating layer 19 is arranged on one side of the touch trace 17 away from the substrate 11; the first insulating layer 19 includes a first via K1; the touch trace 17 is electrically connected to the corresponding touch electrode 161 through the first via K1. In the present embodiment, the source/drain layer and the touch electrode 161 are insulated by the first insulating layer 19, and the first via K1 between the touch trace 17 and the touch electrode 161 connected to the source/drain layer is formed on the first insulating layer 19.
Optionally, the distance h3 between the data line 13 and the extending terminal 171 of the adjacent touch trace 17 is greater than a third set distance; the third set distance is greater than 2 microns. When the extended terminals 171 are disposed on the touch traces 17, the distance h3 between the data line 13 and the extended terminal 171 of the adjacent touch trace 17 needs to be greater than 2 μm. Therefore, the process difficulty of the touch display panel is further reduced, the situation that the data lines 13 are in contact with the extension terminals 171 of the touch wires 17 in the manufacturing process is avoided, and the production efficiency and the production yield of the panel are improved. Note that, in the present embodiment, the spacing h3 refers to the spacing between the edge of the data line 13 on the side close to the extended terminal 171 and the edge of the extended terminal 171 on the side close to the data line 13.
Fig. 6 is a schematic structural view of another touch display panel according to an embodiment of the present invention, and referring to fig. 1 and 6, optionally, the sub-pixels 18 may include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the first via K1 is located within the blue sub-pixel.
As shown in fig. 1 and 6, it can be understood that the first color sub-pixel 182 may be a red sub-pixel, the second color sub-pixel 183 may be a green sub-pixel, and the third color sub-pixel 184 may be a blue sub-pixel. The first via hole K1 occupies a certain light-emitting area, and in this embodiment, the first via hole K1 is disposed in the area where the blue sub-pixel is located, so that human eyes cannot perceive the blue sub-pixel because human eyes are insensitive to blue light, and when the brightness of the blue light emitted by the blue sub-pixel has slight difference, the blue sub-pixel is provided with the first via hole K1, which does not affect the display of the blue sub-pixel, so that a user has a better impression.
With continued reference to fig. 5, optionally, the common electrode 16 is disposed on a side of the first insulating layer 19 remote from the substrate 11; the touch display panel further includes: a second insulating layer 20 disposed on a side of the common electrode 16 away from the substrate 11; the first insulating layer 19 and the second insulating layer 20 form a second via K2; in a plane parallel to the substrate 11, an orthographic projection of the second via K2 is located within the drain D1; the drain D1 is electrically connected to the pixel electrode 15 through the second via K2.
In the present embodiment, the source drain layer and the touch electrode 161 (the common electrode 16) are insulated from each other by the first insulating layer 19, and the common electrode 16 and the pixel electrode 15 are insulated from each other by the second insulating layer 20, and the second via hole K2 is formed in the first insulating layer 19 and the second insulating layer 20, so that the drain D1 is electrically connected to the corresponding pixel electrode 15 through the second via hole K2. The second via hole K2 is also disposed between the touch trace 17 and the data line 13 to increase the distance between the touch trace 17 and the data line 13, and the drain D1 and the second via hole K2 are disposed between the touch trace 17 and the data line 13, so that the pixel driving circuit is densely disposed, the occupied space is small, the light emitting area of the sub-pixel is increased, and the display effect of the panel is improved.
Fig. 7 is another enlarged structural view of the region a in fig. 1, fig. 8 is a sectional view taken along a line b3-b3 'in fig. 7, and fig. 9 is a sectional view taken along a line b4-b 4' in fig. 7. Similarly, in order to describe the structure of the pixel driving circuit in detail, the pixel electrode and the common electrode are not shown in fig. 7, and parts of the structures are omitted in the cross-sectional views shown in fig. 8 and 9, only the source/drain layer and the above film layers are described in detail, and optionally, the touch trace 17 is disposed between the data line 13 and the drain electrode D1 of the sub-pixel 18 connected to the data line 13.
In this embodiment, the touch trace 17 is disposed between the data line 13 and the drain D1 of the sub-pixel 18 connected to the data line 13, which can reduce the signal coupling between the drain D1 and the data line 13, thereby avoiding the occurrence of visual anomalies such as ripples and the like caused by the signal coupling of the touch display panel, and improving the display effect of the touch display panel. Optionally, in this embodiment, the distance between the touch trace 17 and the drain D1 and the distance between the touch trace 17 and the data line 13 are also limited to be greater than 2 microns, so that the process difficulty of the touch display panel is further reduced, the situation that the touch trace 17 is in contact with the drain D1 in the manufacturing process is avoided, and the production efficiency and the production yield of the panel are improved.
With continuing reference to fig. 7 to fig. 9, optionally, the touch trace 17 may further include: an extension terminal 171; the extending direction of the extending terminals 171 intersects the column direction Y; the touch display panel further includes: the first insulating layer 19 is arranged on one side of the touch trace 17 away from the substrate 11; the first insulating layer 19 includes a first via K1; in a plane parallel to the substrate 11, an orthogonal projection of the first via K1 is located within the extended terminal 171; the touch trace 17 is electrically connected to the corresponding touch electrode 161 through the first via K1; in a plane parallel to the substrate 11, the touch trace 17 is located between the orthographic projection of the first via K1 and the data line 13.
Specifically, the touch trace 17 includes an extending terminal 171 extending from a side surface of the touch trace 17, the extending terminal 171 and the corresponding touch electrode 161 connected thereto have an overlapping area on the plane of the substrate 11, and in this embodiment, a first via hole K1 is formed in the overlapping area, so that the extending terminal 171 is electrically connected to the corresponding touch electrode 161 through the first via hole K1. In addition, the extending terminal 171 and the first via hole K1 thereof are spaced from the data line 13 by the touch trace 17, so that the signal coupling between the drain D1 and the data line 13 is effectively reduced, the abnormal visual condition is avoided, and the display effect of the touch display panel is improved.
With continued reference to fig. 8 and 9, optionally, the common electrode 16 (touch electrode 161) is disposed on a side of the first insulating layer 19 away from the substrate 11; the touch display panel further includes: a second insulating layer 20 disposed on a side of the common electrode 16 away from the substrate 11; the first insulating layer 19 and the second insulating layer 20 form a second via K2; in a plane parallel to the substrate 11, an orthographic projection of the second via K2 is located within the drain D1; the drain D1 is electrically connected to the pixel electrode 15 through the second via K2.
Similarly, optionally, the sub-pixels 18 may include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the first via hole K1 is located in the blue sub-pixel, and when the brightness of the blue light emitted by the blue sub-pixel has a slight difference, the human eyes cannot perceive the difference.
It should be noted that, referring to fig. 6, when the touch trace 17 is provided with the extending terminals 171, the extending terminals 171 may be formed in the regions corresponding to all the sub-pixels, so that the light emitted by the sub-pixels with different colors is uniform, and the image display effect is improved, or the extending terminals 171 may be formed only in the blue sub-pixels, and the extending terminals 171 are disposed in the blue sub-pixels, so that the influence is small, and the display uniformity of the display panel is not affected at the same time.
The embodiment of the invention also provides a display device. Fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 10, the display device according to the embodiment of the present invention includes a touch display panel 1 according to any embodiment of the present invention. The display device may be a mobile phone as shown in fig. 10, or may be a computer, a television, an intelligent wearable device, and the like, which is not particularly limited in this embodiment.
Optionally, in this embodiment, the touch display panel sets the conventional sub-pixels extending in the column direction to extend in the row direction, the first color sub-pixel and the second color sub-pixel in each pixel unit are arranged in the column direction, all the sub-pixels in the pixel unit are controlled by one data line, and the first color sub-pixel, the second color sub-pixel and the third color sub-pixel arranged in the row direction need three data lines to control.
The display device in this embodiment includes the touch display panel provided in any embodiment of the present invention, and has the technical effects of the touch display panel provided in any 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 (13)
1. A touch display panel, comprising: a substrate; the scanning line, the data line, the pixel driving circuit, the pixel electrode, the common electrode and the touch control wiring are arranged on the substrate;
the data lines and the touch routing lines are arranged on the same layer and extend along the column direction; the scanning lines extend along the row direction, are insulated from the data lines and are crossed to define sub-pixels;
the sub-pixels comprise corresponding pixel driving circuits and pixel electrodes; the pixel electrode is electrically connected with the adjacent scanning line and the data line through the corresponding pixel driving circuit; the common electrode comprises a plurality of independent touch electrodes; each touch wire is electrically connected with the corresponding touch electrode;
the length of the sub-pixels in the row direction is greater than their length in the column direction.
2. The touch display panel of claim 1,
a plurality of the sub-pixels constitute a pixel unit; the pixel unit at least comprises a first color sub-pixel and a second color sub-pixel; a plurality of sub-pixels in the pixel unit are sequentially arranged along the column direction;
and each sub-pixel in the pixel unit is connected with the same data line.
3. The touch display panel of claim 1, wherein the pixel driving circuit comprises: a drive transistor; the driving transistor comprises a source electrode and a drain electrode;
the source electrode, the drain electrode and the data line are arranged on the same layer; the source electrode is connected with the corresponding data line; the drain electrode is electrically connected with the corresponding pixel electrode.
4. The touch display panel according to claim 3, wherein the data line and the adjacent touch trace are disposed at a distance from a drain of the sub-pixel connected to the data line.
5. The touch display panel according to claim 4, wherein a distance between the data line and the drain of the sub-pixel connected thereto is greater than a first set distance; the distance between the touch control routing and the drain electrode of the sub-pixel connected with the data line is larger than a second set distance;
the first set distance and the second set distance are equal to 2 microns.
6. The touch display panel of claim 4, wherein the touch trace further comprises: an extension terminal; an extending direction of the extended terminal intersects the column direction;
the touch wire is electrically connected with the corresponding touch electrode through the via hole; the via includes a first via having an orthographic projection thereof located within the extended terminal in a plane parallel to the substrate;
in a plane parallel to the substrate, an orthographic projection of the first via hole is located between the touch trace and the data line.
7. The touch display panel according to claim 6, further comprising: the first insulating layer is arranged on one side, away from the substrate, of the touch routing; the first insulating layer comprises the first via; the touch routing is electrically connected with the corresponding touch electrode through the first via hole.
8. The touch display panel according to claim 6, wherein a distance between the data line and the extending terminal of the adjacent touch trace is greater than a third predetermined distance;
the third set distance is greater than 2 microns.
9. The touch display panel according to claim 3, wherein the touch trace is disposed between the data line and the drain of the sub-pixel connected to the data line.
10. The touch display panel of claim 9, wherein the touch trace further comprises: an extension terminal; an extending direction of the extended terminal intersects the column direction;
the touch display panel further includes: the first insulating layer is arranged on one side, away from the substrate, of the touch routing; the first insulating layer includes a first via; an orthographic projection of the first via is located within the extended terminal in a plane parallel to the substrate; the touch wire is electrically connected with the corresponding touch electrode through the first via hole;
in a plane parallel to the substrate, the touch trace is located between the orthographic projection of the first via hole and the data line.
11. The touch display panel according to claim 6 or 10, wherein the sub-pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
the first via is located within the blue sub-pixel.
12. The touch display panel according to claim 6 or 10, wherein the common electrode is disposed on a side of the first insulating layer away from the substrate; the touch display panel further includes: the second insulating layer is arranged on one side, far away from the substrate, of the common electrode; the first insulating layer and the second insulating layer form a second via hole;
an orthographic projection of the second via hole is positioned in the drain electrode in a plane parallel to the substrate; the drain electrode is electrically connected with the pixel electrode through the second via hole.
13. A display device comprising the touch display panel according to any one of claims 1 to 12.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104536637A (en) * | 2015-01-29 | 2015-04-22 | 京东方科技集团股份有限公司 | Embedded touch screen and display device |
| CN105824482A (en) * | 2016-04-13 | 2016-08-03 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| CN108107633A (en) * | 2017-11-20 | 2018-06-01 | 友达光电股份有限公司 | Pixel structure and curved surface display device |
| US20180335878A1 (en) * | 2017-05-16 | 2018-11-22 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Touch control display panel |
| CN212569366U (en) * | 2020-07-23 | 2021-02-19 | 昆山龙腾光电股份有限公司 | Array substrate and touch display device |
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2021
- 2021-12-30 CN CN202111654078.1A patent/CN114356138B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536637A (en) * | 2015-01-29 | 2015-04-22 | 京东方科技集团股份有限公司 | Embedded touch screen and display device |
| CN105824482A (en) * | 2016-04-13 | 2016-08-03 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| US20180335878A1 (en) * | 2017-05-16 | 2018-11-22 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Touch control display panel |
| CN108107633A (en) * | 2017-11-20 | 2018-06-01 | 友达光电股份有限公司 | Pixel structure and curved surface display device |
| CN212569366U (en) * | 2020-07-23 | 2021-02-19 | 昆山龙腾光电股份有限公司 | Array substrate and touch display device |
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| CN114356138B (en) | 2023-11-21 |
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