This application claims benefit of the following application: Chinese application No. 201610617390.6, filed on Jul. 29, 2016, which is incorporated herein in its entirety by reference thereto.
The present disclosure generally relates to the technical field of display, and more specifically relates to an integrated touch control display panel and a display apparatus.
A touch control display apparatus may detect a coordinate of a finger within a display screen plane of the touch control display apparatus through a touch control electrode, and provides corresponding display based on the coordinate.
Conventionally, a transparent conductive glass is usually employed, e.g., ITO (indium tin oxide), to manufacture the touch control electrode. However, the transparent conductive glass has a larger resistance, causing insufficient sensitivity when detecting a touch control.
In order to solve the problem of relatively large resistance in the case of employing a transparent conductive glass to manufacture the control electrode, there exists a technology which uses a metal mesh electrode as the touch control electrode.
It is expected to provide an integrated touch control display panel and a display apparatus.
On the one hand, embodiments of the present disclosure provide an integrated touch control display panel, comprising a touch-control-emitting-electrode-array comprising a plurality of touch control emitting strip electrodes arranged along a first direction; and a touch-control-sensing-electrode-array comprising a plurality of touch control sensing strip electrodes arranged along a second direction; wherein an orthogonal projection of any one of the touch control sensing strip electrodes to the touch-control-emitting-electrode-array overlaps with at least partially any one of the touch control emitting strip electrodes; and the touch control sensing strip electrodes are metal mesh electrodes, the metal mesh electrodes comprising a plurality of metal curves.
On the other hand, embodiments of the present disclosure further provide an integrated touch control display apparatus, comprising the integrated touch control display panel as mentioned above.
According to the solutions of the embodiments in the application, the metal mesh electrodes are used as touch control sensing strip electrodes and the metal wires in the metal mesh electrodes are curved wires, such that the resistance of the touch control sensing strip electrodes are further reduced, and the integrated touch control display panel employing the touch control sensing strip electrodes and the display apparatus present more sensitive touch control sensing effects.
Through reading the detailed description of the non-limitative embodiments with reference to the accompanying drawings, other features, objectives and advantages of the present disclosure will become more apparent:
The present disclosure will be further described with reference to the accompanying drawings and embodiments. It may be understood that the preferred embodiments described herein are only for explaining a relevant invention, not for limiting the present invention. Further, it should also be noted that the drawings only illustrate parts related to the invention for the convenience of description.
It should be noted that the embodiments in the present disclosure and the features in the embodiments may be combined mutually in case that no conflicts exist. Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings in conjunction with the embodiments.
The integrated touch control display panel of the present disclosure comprises a touch-control-emitting-electrode-array 210 and a touch-control-sensing-electrode-array 220.
The touch-control-emitting-electrode-array 210 comprises a plurality of touch control emitting strip electrodes 211 arranged along a first direction. The touch-control-sensing-electrode-array 220 comprises a plurality of touch control sensing strip electrodes 221 arranged along a second direction. An orthogonal projection of any one of the touch control sensing strip electrodes 221 to the touch-control-emitting-electrode-array 210 overlaps at least partially with any one of the touch control emitting strip electrodes 211. In this way, each touch control emitting electrode 211 may overlap with each touch control sensing strip electrode 221, forming a capacitance at the overlap. When a finger touches the integrated touch control display panel according to this embodiment, the touch position can be correspondingly determined by detecting the position where the capacitance varies.
Moreover, in the integrated touch control display panel of the present disclosure, the touch control sensing strip electrodes 221 are metal mesh electrodes, and each metal mesh electrode comprises a plurality of metal curves 2211.
It uses metal mesh electrodes as the touch control sensing strip electrodes 221, the integrated touch control display panel of the present disclosure has a smaller resistance compared with those touch control sensing strip electrodes manufactured from conductive glass such as ITO in the prior art, and its sensitivity of touch control sensing is thus improved.
Moreover, because the touch control sensing strip electrodes 221 of the present disclosure comprise a plurality of metal curves 2211, which have no sharp corners compared to zig-zag metal lines, the resistance of the touch control sensing strip electrode may be further reduced.
Herein, the touch control sensing strip electrode of this embodiment will be described with reference to
The touch control sensing strip electrode 300 comprises a plurality of metal curves 310.
Each of the metal curves 310 comprises a first metal arc 311 and a second metal arc 312 that are arranged alternatively and in series.
As illustrated in
The first metal arcs 311 have a first end 311a and a second end 311b, and the second metal arcs 312 have a third end 312a and a fourth end 312b.
A connecting line between the first end 311a and the second end 311b of the first metal arcs 311 on the given metal curve 310 is parallel to a first direction, and a connecting line between the third end 312a and the fourth end 312b of the second metal arcs 312 on the given metal curve 310 is parallel to the first direction. As illustrated in
In addition, in the touch control sensing strip electrode of this embodiment, center O1 of the first metal arc 311 and center O2 of the second metal arc 312 on the same given metal curve 310 are disposed at two opposite sides of the metal curve 310.
As illustrated in
In some embodiments, in the given metal curve, a circle encompassing the first metal arc is tangent to a circle encompassing the second metal arc that is adjacent to the first metal arc. In these optional embodiments, because the first metal arcs and the second metal arcs in the given metal curve are arranged alternatively and in series, a point of tangency between the circle encompassing the first metal arc and the circle encompassing the second metal arc adjacent to the first metal arc is the connection between the adjacent first and second metal arcs.
Similar to the embodiment shown in
Different from the embodiment shown in
Here, the fifth end of the metal curves 510 overlaps with the first end of one of the first metal arcs 511 in the metal curves 510. For example, if the fifth end of the metal curve 510 is the most left end of the metal curve, the arc at the most left side of the metal curve 510 is the first metal arc. Similarly, if the fifth end of the metal curve 510 is the most right end of the metal curve, the arc at the most right side of the metal curve 510 is the first metal arc.
Further, in the touch control sensing strip electrodes of this embodiment, the first connecting line BB′ and the second connecting line CC′ extend along the second direction. In this way, the metal curves 510 in the given touch control sensing strip electrode may have an equal length.
Further, as illustrated in
In the given touch control sensing strip electrode, the first metal arcs of one of any two adjacent metal curves are tangent to the first metal curves of the other one of the two adjacent metal curves. Or, the second metal arcs of one metal curve in any two adjacent metal curves in the given touch control sensing strip electrode are tangent to the second metal arcs of the other metal curve of the two adjacent metal curves.
In other words, in the given touch control sensing strip electrode, any two adjacent metal curves may realize a mutual electrical connection through the tangency of the first metal arcs of the two metal curves, or through the tangency of the second metal arcs of the two metal curves.
For example, in
Here, it should be noted that the two metal curves 510 adjacent in the second direction shown in
As illustrated in
Similar to the embodiment of
Different from the embodiment of
A third connecting line DD′ sequentially connecting the seventh ends 717 in the given touch control sensing strip electrode is a zig-zag line segment, and a fourth connecting line EE′ sequentially connecting the eighth ends 718 in the given touch control sensing strip electrode is a zig-zag line segment.
Further, in this embodiment, the seventh end 717 of the metal curves 710 in the given touch control sensing strip electrode overlaps with the first end of one of the first metal arcs 711 in the metal curves 710 of the touch control sensing strip electrode. For example, if the fifth end of the metal curve 710 is the leftmost end of the metal curve, the arc at the leftmost side of the metal curve 710 is the first metal arc. Similarly, if the fifth end of the metal curve 710 is the rightmost end of the metal curve, the arc at the rightmost side of the metal curve 710 is the first metal arc.
In addition, in the touch control sensing strip electrode of this embodiment, the two adjacent metal curves 710 may be electrically connected via a plurality of fifth connecting lines 715.
In some optional embodiments, the fifth connecting line 715 may be a straight line segment. Or, in some other optional embodiments, the fifth connecting line may be a curve.
When the fifth connecting line is a straight line segment, an included angle α between the fifth connecting line and the first direction may satisfy: α<90°. That is, the fifth connecting line 715 is not vertical to the first direction. In this way, a relatively large included angle may be avoided from being formed between the fifth connecting line 715 and the two metal curves 710 that are electrically connected to the firth connecting line 715, such that the fifth connecting line 715 will not increase the resistance of the entire touch control sensing strip electrode much.
It should be noted that, in the touch control sensing strip electrodes of the embodiments of the present disclosure, there is no limitation to the dimensional relationship between the radii of the first and second metal arcs. That is, the radius r1 of the first metal arc may be equal to, or smaller than, or larger than the radius r2 of the second metal arc.
Moreover, the touch control sensing strip electrodes of the embodiments of the present disclosure may be manufactured by metals having a relatively higher transmission rate, such as nanometer silver wires.
In
A touch-control-emitting-electrode-array comprising a plurality of touch control emitting strip electrodes 811 may be provided on the array substrate 810, and the touch-control-sensing-electrode-array comprising a plurality of touch control sensing strip electrodes 821 may be provided on the color film substrate 820.
In some embodiments, the touch-control-sensing-electrode-array may be provided on one side of the color film substrate 820 distal to the array substrate 810. As illustrated in
Moreover, in some embodiments, a plurality of scanning lines (not shown in the figure) and data lines (not shown in the figure) are provided on the array substrate 810, the data lines crossing the scanning lines. The crossing scanning lines and the data lines form a pixel array. The scanning lines may extend along the first direction, and the data lines may extend along the second direction. In other words, in these optional implementations, the extending direction of the touch control emitting electrode 811 is identical to the extending direction of the data lines, and the extending direction of the touch control sensing strip electrode 821 is identical to the extending direction of the scanning lines.
The integrated touch control display panel of the present disclosure further comprises an integrated circuit 812, a plurality of touch control scanning signal lines 813, and a plurality of touch control sensing signal lines 822.
First ends of the touch control scanning signal lines 813 are correspondingly connected to the touch control emitting strip electrodes 811, and second ends of the touch control scanning signal lines 813 are connected to the integrated circuit 812. Similarly, first ends of the touch control sensing signal lines 822 are correspondingly connected to the touch control sensing strip electrodes 821, and second ends of the touch control sensing signal lines 822 are connected to the integrated circuit 812. Because the touch control sensing signal lines 822 are provided on the color film substrate 820, while the integrated circuit 812 is provided on the array substrate 810, a conductive path may be formed, for example, through an FPC (flexible circuit board) 823 that is connected between the touch control sensing signal lines 822 and the integrated circuit 812, so as to implement an electrical connection between the touch control sensing signal lines 822 and the integrated circuit 812.
The integrated circuit 812 may provide touch control scanning signals to the touch control emitting strip electrodes 811 and receive touch control sensing signals from the touch control sensing strip electrodes 821 during a touch control period. For example, during the touch control period, the integrated circuit sequentially provides touch control scanning signals to the touch control emitting strip electrodes 811, and meanwhile receives all touch control sensing signals from the touch control sensing strip electrodes 821. A touch control position may be determined based on different touch control sensing signals transmitted by the touch control sensing strip electrodes 821 to the integrated circuit 812.
In some optional embodiments, in the integrated touch control display panel of the present disclosure, the touch control sensing signal lines 822 and the touch control sensing strip electrodes 821 may be provided on the same conductive layer. Or, in some other optional embodiments, the touch control sensing signal lines and the touch control sensing strip electrodes may be provided on different conductive layers. In this case, the touch control sensing signal lines may achieve an electrical connection with the touch control sensing strip electrodes by a direct contact, or via through-holes formed on an insulation layer between a conductive layer on which the touch control sensing lines are located and a conductive layer on which the touch control sensing strip electrodes are located.
In some other optional embodiments, in the integrated control display panel of the present disclosure, the touch control emitting strip electrodes 811 may be multiplexed as common electrodes during a display period. In these optional embodiments, the integrated circuit 812 may be further configured to provide a common voltage signal to the touch control emitting strip electrodes 811 during the display period, such that liquid crystal molecules in a liquid crystal layer (not shown) formed between the array substrate 810 and the color film substrate 820 may be deflected under an action of an electrical field formed by the common electrode and the pixel electrodes, thereby realizing display of predetermined pictures.
As illustrated in
Those skilled in the art should understand that the invention scope of the present disclosure is not limited to a technical solution formed by a specific combination of the technical features as described above, and meanwhile it should cover other technical solutions obtained by any combination of the above technical features or their equivalents without departing from the ideas of the invention. For example, technical solutions obtained by mutual substitutions of the above features and technical features with similar functions disclosed in the present disclosure (but not limited thereto) should be covered by the invention.
Number | Date | Country | Kind |
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201610617390.6 | Jul 2016 | CN | national |