CN114356138B - Touch display panel and display device - Google Patents
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- CN114356138B CN114356138B CN202111654078.1A CN202111654078A CN114356138B CN 114356138 B CN114356138 B CN 114356138B CN 202111654078 A CN202111654078 A CN 202111654078A CN 114356138 B CN114356138 B CN 114356138B
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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 control wirings 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 cross 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 the length thereof in the column direction. The technical scheme provided by the invention can reduce the process difficulty of the same-layer arrangement of the touch wiring and the data line.
Description
Technical Field
The present invention relates to the field of display technologies, and 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, and is widely applied to various electronic products such as mobile phones, televisions, tablet computers, notebook computers and desktop computers, and is called as the main stream in a display device.
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 light and thin characteristics of the in-cell type, but the touch routing and the data wire 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 control wirings 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 cross 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 control wiring is electrically connected with a corresponding touch control electrode;
the length of the sub-pixels in the row direction is greater than the length thereof in the column direction.
In a second aspect, an embodiment of the present invention further provides a display device, including a touch display panel provided by 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 wirings are arranged on the same layer and extend along the row direction. The scanning lines extend along the row direction and cross with the data lines to define each sub-pixel, the sub-pixels comprise pixel electrodes and pixel driving circuits, the adjacent scanning lines and the adjacent data line driver pixel driving circuits of the sub-pixels drive the pixel electrodes, the touch running lines are electrically connected with the corresponding touch electrodes, and note that in the embodiment, the length of the sub-pixels in the row direction is larger than that of the sub-pixels in the column direction, namely, the extending direction of the sub-pixels is the row direction, the size of each sub-pixel in the row direction is greatly increased, so that the data lines and the touch running lines arranged on the same layer have larger wiring space, the gap width between the data lines and the touch running lines is increased, the process difficulty of the data lines and the touch running lines is reduced, and the manufacturing yield of the touch display panel is improved.
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 cross-sectional view taken along line b1-b1' in FIG. 3;
FIG. 5 is a schematic cross-sectional view of FIG. 3 along line b2-b 2';
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-b3' of FIG. 7;
FIG. 9 is a schematic cross-sectional view of FIG. 7 along line b4-b 4';
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
The embodiment of the invention provides a touch display panel, which comprises: 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 control wirings 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 cross 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 the length thereof 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 scanning lines extend along the row direction and cross with the data lines to define each sub-pixel, the sub-pixels comprise pixel electrodes and pixel driving circuits, the adjacent scanning lines and the adjacent data line driver pixel driving circuits of the sub-pixels drive the pixel electrodes, the touch running lines are electrically connected with the corresponding touch electrodes, and note that in the embodiment, the length of the sub-pixels in the row direction is larger than that of the sub-pixels in the column direction, namely, the extending direction of the sub-pixels is the row direction, the size of each sub-pixel in the row direction is greatly increased, so that the data lines and the touch running lines arranged on the same layer have larger wiring space, the gap width between the data lines and the touch running lines is increased, the process difficulty of the data lines and the touch running lines is reduced, and the manufacturing yield of the touch display panel is improved.
The foregoing is the core idea of the present invention, and the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are intended to fall within the 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 scan lines 12, data lines 13, pixel driving circuits 14, pixel electrodes 15, a common electrode 16, and touch traces 17 on the substrate 11. The scan lines 12 extend along a row direction X, and are sequentially arranged along a 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, and the data line 13 and the touch trace 17 are arranged on the same layer, so as to reduce the number of film layers of the touch display panel, thereby reducing the thickness of the whole touch display panel. The scan lines 12 and the data lines 13 intersect to define respective sub-pixels 18. Each sub-pixel 18 may emit a set color light for touching the display panel. Each sub-pixel 18 includes a pixel driving circuit 14 and a pixel electrode 15 connected to each other, and a scanning line 12 and a 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, and optionally, a vertical projection of the touch electrodes 161 in a plane of the substrate 11 covers a plurality of sub-pixels 18, and each touch trace 17 can be electrically connected with its corresponding touch electrode 161 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.
Note that in the present embodiment, the length L1 of the sub-pixel 18 in the row direction X is larger than the length L2 thereof in the column direction Y. That is, the sub-pixels 18 extend in the row direction X. Therefore, the sub-pixel 18 is laterally designed in this embodiment, so that the space between the touch trace 17 and the data line 13 can be properly enlarged, for example, the space can be substantially larger than 2 micrometers, so that the etching process can be achieved, and the touch trace 17 and the data line 13 are not easy to break or adhere. The process difficulty is reduced, and the yield of the touch display panel is improved. In comparison with the vertically designed sub-pixels, 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 18 in the column direction Y, that is, the sub-pixel 18 'is vertically designed, for the vertically designed sub-pixel 18', the widening of the pitch between the adjacent sub-pixels 18 'in the row direction X means the size of the sub-pixel 18' in the row direction X is reduced, and the size of the sub-pixel 18 'in the row direction X is reduced greatly to reduce the aperture ratio of the touch display panel, so that the pitch between the adjacent sub-pixels 18' in the row direction X is generally reduced due to the high requirement of the aperture ratio, resulting in the compression of the pitch between the touch trace 17 'and the data line 13', which causes difficulty in processing. In the embodiment, the sub-pixels 18 are longitudinally designed, and the distance between the adjacent sub-pixels 18 in the row direction X has a small influence on the aperture ratio of the touch display panel, so that the distance between the adjacent sub-pixels 18 in the row direction X can be appropriately increased, and further, the distance between the touch trace 17 and the data line 13 is increased, and the process difficulty is reduced.
With continued reference to fig. 1, optionally, a plurality of sub-pixels 18 may form a 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 sequentially arranged in the column direction Y; each sub-pixel 18 in the pixel unit 181 is connected to the same data line.
The plurality of sub-pixels 18 may form a pixel unit 181, and each pixel unit 181 includes a plurality of sub-pixels 18 with different colors so as to match the light rays with any colors. 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 sub-pixels of two colors, 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 sub-pixels 18 of three or more colors, as shown in fig. 1, and 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 plurality of sub-pixels 18 in the pixel unit 181 are sequentially arranged along the column direction Y, and each color sub-pixel 18 of the same pixel unit 181 shares one data line 13, compared with the sub-pixels 18 'longitudinally arranged, as shown in fig. 2, one pixel unit 181' is sequentially arranged along the row direction X, and in fig. 2, the pixel unit 181 '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', and then 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, a multiplexing MUX circuit is not required to be matched at the edge of the touch display panel, the space requirement of the conventional multiplexing MUX circuit is known to be about 200 mu, the number of the data lines 13 is reduced through the transverse design of the sub-pixels in the embodiment, the placement of the MUX circuit is further eliminated, the width of the lower frame of the touch display panel is effectively reduced, the narrow frame design of the panel is realized, the requirement of the extreme frame required by a user is met, and the touch display panel is particularly suitable for the touch display panel with medium and small size.
Fig. 3 is an enlarged view of the area a in fig. 1, fig. 4 is a schematic view of the section along the line b1-b1 'in fig. 3, and fig. 5 is a schematic view of the section along the line b2-b2' in fig. 3. In order to detail the structure of the pixel driving circuit, the pixel electrode and the common electrode are not illustrated in fig. 3, and the cross-sectional views illustrated in fig. 4 and 5 omit part of the structure, only the source and drain layers and the above layers are described with emphasis, only the schematic is 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 on the same layer with the data line 13; the source electrode S1 is connected with 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 a driving transistor T1, and the pixel driving circuit may be 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 in the same layer and in 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 electrode D1 and the drain electrode S1, respectively, and the active layer 141 overlaps the scan line 12 on the plane of the substrate 11, and the active layer 141 overlaps the scan line 12 to form a gate electrode, so that the driving transistor T1 can output a driving signal to the pixel electrode 15 under the driving of the scan signal on the gate electrode and the data signal on the drain electrode S1. Alternatively, the active layer 141 in this embodiment overlaps the scan line 12 twice to form a dual gate structure, which enhances the driving performance of the driving transistor T1.
With continued reference to fig. 3 to 5, optionally, the data line 13 and the adjacent touch trace 17 are disposed at intervals of the drain D1 of the sub-pixel 18 to which the data line 13 is connected. That is, in this embodiment, the touch trace 17 and the data line 13 are respectively disposed on two opposite sides of the drain electrode D1 of the sub-pixel 18 connected with the data line 13, so that the space between the touch trace 17 and the data line 13 is further increased, the process difficulty of the touch display panel is reduced, the situation that the touch trace 17 and the data line 13 are broken or adhered in the manufacturing process is avoided, and the panel production efficiency and the production yield are improved.
Optionally, a distance h1 between the data line 13 and the drain electrode D1 of the sub-pixel 18 connected thereto is greater than a first set distance; the interval h2 between the drains D1 of the sub-pixels 18 connected with the data lines 13 by the touch trace 17 is larger than a second set distance; the first set distance and the second set distance are equal to 2 microns.
In this embodiment, the drain electrode D1 of the sub-pixel 18 is disposed between the data line 13 and the touch trace 17, and although the interval between the data line 13 and the touch trace 17 is larger, the drain electrode D1 in the middle of the drain electrode D1 is also disposed on the same layer as the data line 13 and the touch trace 17, so that the interval h1 between the data line 13 and the drain electrode D1 of the sub-pixel 18 connected with the data line and the interval h2 between the touch trace 17 and the drain electrode D1 of the sub-pixel 18 need to be controlled, so that the interval h1 and the interval h2 are both larger than 2 micrometers, thereby further reducing the process difficulty of the touch display panel, avoiding the contact condition between the touch trace 17 and the data line 13 and the drain electrode D1 in the manufacturing process, and improving the panel production efficiency and the production yield. Note that, in this embodiment, the pitch h1 refers to the distance between the edge of the data line 13 near the drain electrode D1 of the sub-pixel 18 connected thereto and the edge of the drain electrode D1 of the sub-pixel 18 near the data line 13, and similarly, the pitch h2 refers to the distance between the edge of the touch trace 17 near the drain electrode D1 of the sub-pixel 18 and the edge of the drain electrode D1 of the sub-pixel 18 near 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 terminal 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 in a plane parallel to the substrate 11, an orthographic projection of the first via K1 is located in the extension terminal 171; in a plane parallel to the substrate 11, the orthographic projection of the first via K1 is located between the touch trace 17 and the data line 13.
The touch trace 17 is electrically connected to the touch electrode 161, and specifically, the touch trace 17 includes an extension terminal 171 extending from a side surface of the touch trace 17, and an overlapping area exists between the extension terminal 171 and the corresponding touch electrode 161 connected to the extension terminal on the plane on which the substrate 11 is located, and in this embodiment, a first via K1 is formed in the overlapping area, so that the extension terminal 171 is electrically connected to the corresponding touch electrode 161 through the first via K1. The extending terminal 171 and the first via K1 are also disposed between the touch trace 17 and the data line 13, so that the distance between the touch trace 17 and the data line 13 is increased, and the drain D1, the extending terminal 171 and the first via 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 smaller, 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 this embodiment, the source/drain layer and the touch electrode 161 are insulated by the first insulating layer 19, and the first via K1 connecting the touch trace 17 of the source/drain layer and the touch electrode 161 is formed on the first insulating layer 19.
Optionally, a 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 touch trace 17 is provided with the extension terminal 171, it is also necessary to control the distance h3 between the data line 13 and the extension terminal 171 of the adjacent touch trace 17 to be greater than 2 micrometers. Therefore, the process difficulty of the touch display panel is further reduced, the condition that the data wire 13 is contacted with the extending terminal 171 of the touch wiring 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 pitch h3 refers to a pitch between an edge of the data line 13 on a side close to the extended terminal 171 and an edge of the extended terminal 171 on a side close to the data line 13.
Fig. 6 is a schematic structural diagram of another touch display panel according to an embodiment of the present invention, referring to fig. 1 and 6, alternatively, the sub-pixels 18 may include red sub-pixels, green sub-pixels and blue sub-pixels; the first via K1 is located in the blue subpixel.
As shown in fig. 1 and 6, it can be seen 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 arrangement of the first via hole K1 occupies a certain light emitting area, and in this embodiment, the first via hole K1 is arranged in the area where the blue sub-pixel is located, and because the human eye is insensitive to the blue light, when there is a slight difference in the brightness of the blue light emitted by the blue sub-pixel, the human eye cannot perceive, and the arrangement of the first via hole K1 in the blue sub-pixel does not affect the display of the blue sub-pixel, so that the user has a better look and feel.
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, the orthographic projection of the second via K2 is located in the drain D1; the drain electrode D1 is electrically connected to the pixel electrode 15 through the second via hole K2.
The source/drain electrode layer and the touch electrode 161 (the common electrode 16) of the present embodiment are insulated by the first insulating layer 19, and the common electrode 16 and the pixel electrode 15 are insulated 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 in the present embodiment, so that the drain electrode D1 is electrically connected to the corresponding pixel electrode 15 through the second via hole K2. And the second via hole K2 is also disposed between the touch trace 17 and the data line 13, so as 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, occupies a smaller space, increases the light emitting area of the sub-pixel, and improves the display effect of the panel.
Fig. 7 is a schematic view of another enlarged structure of the area a in fig. 1, fig. 8 is a schematic view of a section along the line b3-b3 'in fig. 7, and fig. 9 is a schematic view of a section along the line b4-b4' in fig. 7. Similarly, to detail the structure of the pixel driving circuit, the pixel electrode and the common electrode are not shown in fig. 7, and the cross-sectional views shown in fig. 8 and 9 omit part of the structure, and only the source/drain layer and the above layer are described with emphasis, and optionally, 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.
In this embodiment, 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, so as to reduce the coupling of signals between the drain electrode D1 and the data line 13, thereby avoiding the abnormal vision condition of the touch display panel, such as ripple, caused by the coupling of signals, and improving the display effect of the touch display panel. Optionally, the interval between the touch trace 17 and the drain electrode D1 and the interval between the touch trace 17 and the data line 13 are both larger than 2 micrometers, so that the process difficulty of the touch display panel is further reduced, the situation that the touch trace 17 is contacted with the drain electrode D1 in the manufacturing process is avoided, and the production efficiency and the production yield of the panel are improved.
With continued reference to fig. 7-9, optionally, the touch trace 17 may further include: an extension terminal 171; the extending direction of the extending terminal 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, the orthographic projection of the first via K1 is located in the extension terminal 171; the touch trace 17 is electrically connected with 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.
The touch trace 17 is electrically connected to the touch electrode 161, and specifically, the touch trace 17 includes an extension terminal 171 extending from a side surface of the touch trace 17, and an overlapping area exists between the extension terminal 171 and the corresponding touch electrode 161 connected to the extension terminal on the plane on which the substrate 11 is located, and in this embodiment, a first via K1 is formed in the overlapping area, so that the extension terminal 171 is electrically connected to the corresponding touch electrode 161 through the first via K1. And the extended terminal 171 and the first via hole K1 thereof are spaced from the data line 13 by the touch trace 17, so as to effectively reduce the signal coupling between the drain D1 and the data line 13, avoid abnormal vision, and improve the display effect of the touch display panel.
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, the orthographic projection of the second via K2 is located in the drain D1; the drain electrode D1 is electrically connected to the pixel electrode 15 through the second via hole K2.
Similarly, optionally, the subpixels 18 may include red, green, and blue subpixels; the first via hole K1 is located in the blue sub-pixel, when there is a slight difference in brightness of blue light emitted by the blue sub-pixel, the first via hole K1 is not perceived by human eyes, and in this embodiment, the brightness of the touch display panel watched by the user is uniform, so that the touch display panel has better watching experience.
It should be noted that, referring to fig. 6, when the extending terminal 171 is disposed on the touch trace 17, the extending terminal 171 may be formed in the area corresponding to all the sub-pixels, so that the sub-pixels with different colors emit light uniformly, and the display effect of the screen is improved, or the extending terminal 171 may be formed only in the blue sub-pixel, and the extending terminal 171 is disposed in the blue sub-pixel, so that the display uniformity of the display panel is not affected.
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 an 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, etc., which is not limited in this embodiment.
Optionally, in this embodiment, the touch display panel sets the normal sub-pixels extending in the column direction to extend in the row direction, so that the first color sub-pixels and the second color sub-pixels in each pixel unit are arranged along the column direction, all the sub-pixels in the pixel unit are controlled by one data line, and the first color sub-pixels, the second color sub-pixels and the third color sub-pixels arranged along the row direction need to be controlled by three data lines.
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 in any embodiment of the present invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. 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, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
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 control wirings 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 cross 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 control wiring is electrically connected with a corresponding touch control electrode;
the length of the sub-pixels in the row direction is greater than the length thereof in the column direction;
the pixel driving circuit includes: a driving transistor; the driving transistor includes a source and a drain;
the source electrode and the drain electrode are arranged on the same layer as the data line; the source electrode is connected with the corresponding data line; the drain electrode is electrically connected with the corresponding pixel electrode;
the data line is arranged between the adjacent touch wiring line and the drain electrode of the sub-pixel connected with the data line; or alternatively, the first and second heat exchangers may be,
the touch control wiring is arranged between the data line and the drain electrode of the sub-pixel connected with the data line.
2. The touch display panel of claim 1, wherein,
a plurality of the sub-pixels form 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;
each sub-pixel in the pixel unit is connected with the same data line.
3. The touch display panel according to claim 1, wherein when the data line and the adjacent touch wiring line are spaced apart, the drain electrode of the sub-pixel connected to the data line is disposed, the interval between the data line and the drain electrode of the sub-pixel connected to the data line is greater than a first set distance; the interval between the touch control wiring 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.
4. The touch display panel of claim 1, wherein when the data line is spaced apart from the adjacent touch trace by the drain electrode of the sub-pixel connected to the data line, the touch trace further comprises: an extension terminal; the extending direction of the extending terminal intersects the column direction;
the touch control wiring is electrically connected with the corresponding touch control electrode through the via hole; the via hole comprises a first via hole, and in a plane parallel to the substrate, the orthographic projection of the first via hole is positioned in the extension terminal;
in a plane parallel to the substrate, the orthographic projection of the first via is located between the touch trace and the data line.
5. The touch display panel of claim 4, further comprising: the first insulating layer is arranged on one side of the touch wire away from the substrate; the first insulating layer comprises the first via hole; the touch trace is electrically connected with the corresponding touch electrode through the first via hole.
6. The touch display panel according to claim 4, wherein a distance between the data line and the adjacent extending terminal of the touch trace is greater than a third set distance;
the third set distance is greater than 2 microns.
7. The touch display panel according to claim 1, wherein when the touch trace is disposed between the data line and the drain electrode of the sub-pixel connected to the data line, the touch trace further comprises: an extension terminal; the extending direction of the extending terminal intersects the column direction;
the touch display panel further includes: the first insulating layer is arranged on one side of the touch wire away from the substrate; the first insulating layer comprises a first via; in a plane parallel to the substrate, an orthographic projection of the first via is located within the extension terminal; the touch control wiring is electrically connected with the corresponding touch control 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 and the data line.
8. The touch display panel of claim 4 or 7, wherein the subpixels comprise a red subpixel, a green subpixel, and a blue subpixel;
the first via is located within the blue subpixel.
9. The touch display panel according to claim 5 or 7, 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 of the common electrode, which is far away from the substrate; forming a second via hole by the first insulating layer and the second insulating layer;
in a plane parallel to the substrate, an orthographic projection of the second via is located within the drain; the drain electrode is electrically connected with the pixel electrode through the second via hole.
10. A display device comprising a touch display panel according to any one of the preceding claims 1-9.
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| 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 |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10423255B2 (en) * | 2017-05-16 | 2019-09-24 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Touch control display panel |
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Patent Citations (4)
| 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 |
| 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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