CN109828689B - Touch display panel and touch display device - Google Patents

Touch display panel and touch display device Download PDF

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Publication number
CN109828689B
CN109828689B CN201910100139.6A CN201910100139A CN109828689B CN 109828689 B CN109828689 B CN 109828689B CN 201910100139 A CN201910100139 A CN 201910100139A CN 109828689 B CN109828689 B CN 109828689B
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touch
electrode
area
trace
display panel
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CN109828689A (en
Inventor
杨佳瑶
黄凯泓
刘昕昭
程琳
王笑宇
王清霞
陈敏
张鹏
高转
王昊深
张启安
许孜
古赐谊
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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Abstract

The invention provides a touch display panel and a touch display device. A touch display panel comprises a first touch area and a bendable second touch area, wherein the first touch area comprises a first side and a second side which are opposite, and the second touch area is adjacent to the first side and/or the second side; the first touch area also comprises a plurality of first touch electrodes and a plurality of second touch electrodes which are arranged in a matrix manner; at least one first touch electrode extends to the second touch area; the second touch area further comprises a third touch electrode; in the second touch area, the first touch electrode and the third touch electrode are used for mutual capacitance touch, the first touch electrode is a touch sensing electrode and the third touch electrode is a touch driving electrode, or the first touch electrode is a touch driving electrode and the third touch electrode is a touch sensing electrode. The second touch area is arranged on the side of the touch display device, replaces a side entity key in the prior art, and is used for controlling a power supply or adjusting volume in a touch mode.

Description

Touch display panel and touch display device
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of display technologies, and in particular, to a touch display panel and a touch display device.
[ background of the invention ]
In the prior art, a touch display device uses a side physical key to control a power supply or adjust volume.
[ summary of the invention ]
In order to solve the above technical problems, the present invention provides a touch display panel and a touch display device.
In one aspect, the present invention provides a touch display panel, which includes a first touch region and a bendable second touch region, where the first touch region includes a first side and a second side opposite to the first side, and the second touch region is adjacent to the first side and/or the second side;
the first touch area further comprises a plurality of first touch electrodes and a plurality of second touch electrodes which are arranged in a matrix manner;
at least one first touch electrode extends to the second touch area;
the second touch area further comprises a third touch electrode;
in the second touch area, the first touch electrode and the third touch electrode are used for mutual capacitance touch, the first touch electrode is a touch sensing electrode and the third touch electrode is a touch driving electrode, or the first touch electrode is a touch driving electrode and the third touch electrode is a touch sensing electrode.
Optionally, in the first touch area, the first touch electrode and the second touch electrode are used for mutual capacitive touch, the first touch electrode is a touch sensing electrode and the second touch electrode is a touch driving electrode, or the first touch electrode is a touch driving electrode and the second touch electrode is a touch sensing electrode;
the first touch area includes a display layer for displaying an image.
Optionally, the touch display panel further includes a routing area surrounding the first touch area and the second touch area;
the wiring area comprises a first touch wire, a second touch wire and a third touch wire;
the first touch wire is electrically connected with the first touch electrode and provides a touch signal to the first touch electrode;
the second touch wire is electrically connected with the second touch electrode and provides a touch signal to the second touch electrode;
the third touch trace is electrically connected with the third touch electrode and provides a touch signal for the third touch electrode.
Optionally, the touch display panel includes at least two second touch areas adjacent to the first side, at least two third touch electrodes;
the first second touch area is separated from the second touch area;
a first one of the third touch electrodes extends in a first one of the second touch areas, and a second one of the third touch electrodes extends in a second one of the second touch areas.
Optionally, the touch display panel further includes a first third touch trace extending in the trace area;
a first one of the third touch traces is along the first side;
the first third touch trace is electrically connected to the first third touch electrode and electrically connected to the second third touch electrode.
Optionally, the touch display panel further includes a third second touch region and a third touch electrode;
a third one of the second touch areas is adjacent to the second side, and a third one of the third touch electrodes extends in the third one of the second touch areas.
Optionally, the touch display panel further includes a second third touch trace extending in the trace area;
a second one of the third touch traces is along the second side;
the second third touch trace is electrically connected to the third touch electrode.
Optionally, the first touch area further includes a third side, the third side being adjacent to the first side and the second side;
the touch display panel further comprises a third touch wire extending in the wire area;
a third touch trace is along the first side, the second side, and the third side;
the third touch trace is electrically connected to the first third touch electrode and to the third touch electrode.
Optionally, the first touch trace and/or the second touch trace and the first touch electrode are located on different film layers, and the first touch trace and/or the second touch trace and the first touch electrode extending to the second touch area are overlapped.
Optionally, the first touch trace and/or the second touch trace and the first touch electrode are located on the same film layer, the first touch trace and/or the second touch trace and the first touch electrode extending to the second touch area are not overlapped, and the first touch trace and/or the second touch trace extend in the trace area surrounding the second touch area.
Optionally, the touch display panel further includes a polarizer, and the polarizer covers the first touch area, the second touch area, and the routing area.
Optionally, the second touch area includes a flexible display layer, and the flexible display layer is configured to display a virtual key image.
Optionally, the second touch area is a non-display area.
Optionally, the second touch area is bent to a side surface of the touch display panel.
In another aspect, the present invention provides a touch display device, which includes the touch display panel.
In the embodiment of the invention, the first touch area is positioned on the front surface of the touch display panel and is used for displaying images and controlling touch; the touch control device comprises a plurality of first touch control electrodes and a plurality of second touch control electrodes, wherein the first touch control electrodes and the second touch control electrodes are touch control driving electrodes or touch control induction electrodes and are used for mutual capacitance type touch control; the second touch area is close to the first side and/or the second side of the first touch area, is bent to the side face of the touch display panel and is used for touch control or used for touch control and image display; the first touch electrode and the third touch electrode are touch driving electrodes or touch sensing electrodes and are used for mutual capacitance touch. The touch display panel is arranged in the touch display device, the first touch area is arranged on the front side of the touch display device, and the second touch area is arranged on the side edge of the touch display device, so that the touch display panel replaces a side edge entity key in the prior art and is used for controlling a power supply or adjusting volume in a touch mode; compared with the pressing control of the side entity key, the touch control of the second touch area has higher sensitivity. The first touch control area and the second touch control area are both provided with first touch control electrodes, the first touch control electrodes in the same row in the first touch control area and the second touch control area are electrically connected and transmit touch control signals together, the first touch control electrodes in the same row in the first touch control area and the second touch control area are prevented from being electrically connected by other touch control wires, the space of other touch control wires is saved, the first touch control electrodes in the same row in the first touch control area and the second touch control area are prevented from transmitting the touch control signals respectively, and the process of transmitting the touch control signals by the first touch control electrodes is simplified.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of a touch display device 100 in the prior art;
FIG. 2 is a side view of a touch display device 100 in the prior art;
fig. 3 is a front view of a touch display panel 200 according to an embodiment of the invention;
fig. 4 is a front view of another touch display panel 200 according to an embodiment of the invention;
fig. 5 is a front view of another touch display panel 200 according to an embodiment of the invention;
FIG. 6 is a side view of another touch display panel 200 according to an embodiment of the invention;
fig. 7 is a cross-sectional view of another touch display panel 200 according to an embodiment of the invention;
fig. 8 is a cross-sectional view of another touch display panel 200 in a second touch area 210B according to another embodiment of the invention;
fig. 9 is a front view of another touch display panel 200 according to the embodiment of the invention;
fig. 10 is a cross-sectional view of another touch display panel 200 in a second touch area 210B according to another embodiment of the invention;
FIG. 11 is a front view of a touch display device 300 according to an embodiment of the invention;
fig. 12 is a side view of a touch display device 300 according to an embodiment of the invention.
[ detailed description ] A
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used herein to describe devices in accordance with embodiments of the present invention, these devices should not be limited by these terms. These terms are only used to distinguish one device from another. For example, a first device may also be referred to as a second device, and similarly, a second device may also be referred to as a first device, without departing from the scope of embodiments of the present invention.
FIG. 1 is a front view of a prior art touch display device 100; fig. 2 is a side view of a touch display device 100 in the prior art.
As shown in fig. 1 and 2, in the prior art, the touch display device 100 includes a touch display panel 110 and side physical keys 120. The touch display panel 110 is located on the front surface of the touch display device 100 for touch control. The side physical keys 120 are located on the side of the touch display device 100 and are used for pressing control. The touch display panel 110 does not replace the side physical keys 120 for controlling power or adjusting volume.
In order to solve the above technical problems, the present invention provides a touch display panel and a touch display device.
Fig. 3 is a front view of a touch display panel 200 according to an embodiment of the invention; fig. 4 is a front view of another touch display panel 200 according to an embodiment of the invention; fig. 5 is a front view of another touch display panel 200 according to an embodiment of the invention; FIG. 6 is a side view of another touch display panel 200 according to an embodiment of the invention; fig. 7 is a cross-sectional view of another touch display panel 200 according to an embodiment of the invention.
As shown in fig. 3 to 7, the touch display panel 200 includes a first touch region 210A and a bendable second touch region 210B, the first touch region 210A includes a first side B1 and a second side B2 opposite to each other, and the second touch region 210B is adjacent to the first side B1 and/or the second side B2; the first touch area 210A further includes a plurality of first touch electrodes 211 and a plurality of second touch electrodes 212 arranged in a matrix; wherein, at least one first touch electrode 211 extends to the second touch area 210B; the second touch area 210B further includes a third touch electrode 213; in the second touch area 210B, the first touch electrode 211 and the third touch electrode 213 are used for mutual capacitive touch, the first touch electrode 211 is a touch sensing electrode and the third touch electrode 213 is a touch driving electrode, or the first touch electrode 211 is a touch driving electrode and the third touch electrode 213 is a touch sensing electrode.
In the embodiment of the present invention, the first touch area 210A is located on the front surface of the touch display panel 200 for displaying images and controlling touch; the first touch electrodes 211 and the second touch electrodes 212 arranged in a matrix are touch driving electrodes or touch sensing electrodes for mutual capacitance touch; the second touch area 210B is adjacent to the first side B1 and/or the second side B2 of the first touch area 210A, and is bent to the side of the touch display panel 200 for touch control, or for touch control and image display; the first touch electrode 211 and the third touch electrode 213 are touch driving electrodes or touch sensing electrodes for mutual capacitive touch. The touch display panel 200 is disposed in a touch display device, the first touch area 210A is disposed on the front surface of the touch display device, and the second touch area 210B is disposed on the side of the touch display device, replacing the side physical keys in the prior art, and used for controlling power or adjusting volume; the touch control of the second touch area 210B has higher sensitivity than the pressing control of the side physical keys. The first touch areas 210A and the second touch areas 210B are both provided with first touch electrodes 211, the first touch electrodes 211 in the same row in the first touch areas 210A and the second touch areas 210B are electrically connected and transmit touch signals together, the first touch electrodes 211 in the same row in the first touch areas 210A and the second touch areas 210B are prevented from being electrically connected by other touch wires, the space of other touch wires is saved, the first touch electrodes 211 in the same row in the first touch areas 210A and the second touch areas 210B are prevented from transmitting touch signals respectively, and the process of transmitting touch signals by the first touch electrodes 211 is simplified.
As shown in fig. 3 to 7, in the first touch area 210A, the first touch electrode 211 and the second touch electrode 212 are used for mutual capacitive touch, the first touch electrode 211 is a touch sensing electrode and the second touch electrode 212 is a touch driving electrode, or the first touch electrode 211 is a touch driving electrode and the second touch electrode 212 is a touch sensing electrode; the first touch region 210A includes a display layer 230A for displaying an image.
In the embodiment of the present invention, in the first touch area 210A, the first touch electrode 211 and the second touch electrode 212 are touch driving electrodes or touch sensing electrodes, which form a first touch unit S1 for mutual capacitive touch; in the second touch area 210B, the first touch electrode 211 and the third touch electrode 213 are touch driving electrodes or touch sensing electrodes, and form a second touch unit S2 for mutual capacitive touch. In the mutual capacitive touch, the touch display panel 200 includes a touch driving electrode, a touch sensing electrode, and a touch chip IC. An insulating medium is arranged between the touch driving electrode and the touch sensing electrode, and capacitive coupling exists between the touch driving electrode and the touch sensing electrode. The touch driving electrode is electrically connected with the touch chip IC, and the touch chip IC transmits a driving signal to the touch driving electrode. Due to capacitive coupling between the touch driving electrode and the touch sensing electrode, when the touch driving electrode has a driving signal, the touch sensing electrode has a sensing signal. The touch sensing electrode is electrically connected with the touch chip IC, and the touch chip IC detects a sensing signal for the touch sensing electrode. And the touch control chip IC determines the capacitive coupling between the touch control driving electrode and the touch control sensing electrode according to the driving signal and the sensing signal. When a touch object approaches the touch driving electrode and the touch sensing electrode, the capacitive coupling between the touch driving electrode and the touch sensing electrode changes, and although the driving signal does not change, the sensing signal changes. The touch chip IC determines the capacitance coupling change between the touch driving electrode and the touch sensing electrode according to the driving signal and the sensing signal, and accordingly judges the touch object. Thus, the first touch electrode 211 and the second touch electrode 212 are touch driving electrodes or touch sensing electrodes, and the capacitance coupling change between the first touch electrode 211 and the second touch electrode 212 is used for determining a touch object; the first touch electrode 211 and the third touch electrode 213 are touch driving electrodes or touch sensing electrodes, and a capacitance coupling change between the first touch electrode 211 and the third touch electrode 213 is used for determining a touch object.
In the first touch region 210A, the display layer 230A includes a plurality of organic light emitting material layers, such as a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, which are stacked for electroluminescence and displaying images; the first touch electrode 211 or the second touch electrode 212 is transparent on the display layer 230A.
As shown in fig. 3 to 5, the touch display panel 200 further includes a routing area 220 surrounding the first touch area 210A and the second touch area 210B; the routing area 220 includes a first touch trace 221, a second touch trace 222 and a third touch trace 223; the first touch trace 221 is electrically connected to the first touch electrode 211 and provides a touch signal thereto; the second touch trace 222 is electrically connected to the second touch electrode 212 and provides a touch signal thereto; the third touch trace 223 is electrically connected to the third touch electrode 213, and provides a touch signal thereto.
In the embodiment of the invention, the routing area 220 surrounds the first touch area 210A and the second touch area 210B, so that the first touch trace 221 and the second touch trace 222 in the routing area 220 are electrically connected to the first touch electrode 211 and the second touch electrode 212 in the first touch area 210A, respectively, and the third touch trace 223 in the routing area 220 is electrically connected to the third touch electrode 213 in the second touch area 210B. The routing area 220 further includes a touch chip IC electrically connected to the first touch trace 221, the second touch trace 222 and the third touch trace 223. The touch chip IC transmits a driving signal or a detection sensing signal to the first touch electrode 211 by using the first touch trace 221, transmits a driving signal or a detection sensing signal to the second touch electrode 212 by using the second touch trace 222, and transmits a driving signal or a detection sensing signal to the third touch electrode 213 by using the third touch trace 223, where the driving signal or the sensing signal is a touch signal.
As shown in fig. 3 to 5, the touch display panel 200 includes at least two second touch areas 210B adjacent to the first side B1, at least two third touch electrodes 213; the first second touch area 210B-1 is separated from the second touch area 210B-2; the first third touch electrode 213-1 extends in the first second touch region 210B-1, and the second third touch electrode 213-2 extends in the second touch region 210B-2.
In the embodiment of the invention, the two second touch areas 210B are adjacent to the first side B1 of the first touch area 210A, and are bent to the side of the touch display panel 200 for adjusting the volume; the first second touch zone 210B-1 is separated from the second touch zone 210B-2, the first second touch zone 210B-1 is used for turning up the volume and the second touch zone 210B-2 is used for turning down the volume, or the first second touch zone 210B-1 is used for turning down the volume and the second touch zone 210B-2 is used for turning up the volume; in the first second touch area 210B-1, the first third touch electrode 213-1 and the first touch electrode 211 are touch driving electrodes or touch sensing electrodes for mutual capacitive touch; in the second touch area 210B-2, the second third touch electrode 213-2 and the first touch electrode 211 are touch driving electrodes or touch sensing electrodes for mutual capacitive touch.
As shown in fig. 3 to 5, the touch display panel 200 further includes a first third touch trace 223-1 extending in the trace area 220; the first third touch trace 223-1 extends along the first side B1; the first third touch trace 223-1 is electrically connected to the first third touch electrode 213-1 and electrically connected to the second third touch electrode 213-2.
In the embodiment of the invention, the first third touch trace 223-1 extends in the routing area 220 and extends along the first side B1 of the first touch area 210A, and the routing area 220 is adjacent to the first second touch area 210B-1 and the second touch area 210B-2 at the first side B1 of the first touch area 210A, so that the first third touch trace 223-1 electrically connects the touch chip IC in the routing area 220, the first third touch electrode 213-1 in the first second touch area 210B-1, and the second third touch electrode 213-2 in the second touch area 210B-2. The touch chip IC transmits a driving signal or detects a sensing signal to the first third touch electrode 213-1 and the second third touch electrode 213-2 by using the first third touch trace 223-1.
As shown in fig. 3 to 5, the touch display panel 200 further includes a third second touch area 210B-3 and a third touch electrode 213-3; the third second touch area 210B-3 is adjacent to the second side B2, and the third touch electrode 213-3 extends in the third second touch area 210B-3.
In the embodiment of the invention, the third second touch area 210B-3 is adjacent to the second side B2 of the first touch area 210A, and is bent to the side of the touch display panel 200 for controlling the power supply; in the third second touch area 210B-3, the third touch electrode 213-3 and the first touch electrode 211 are touch driving electrodes or touch sensing electrodes for mutual capacitive touch.
As shown in fig. 3, the touch display panel 200 further includes a second third touch trace 223-2 extending in the trace area 220; the second third touch trace 223-2 extends along the second side B2; the second third touch trace 223-2 is electrically connected to the third touch electrode 213-3.
In the embodiment of the invention, the second third touch trace 223-2 extends in the routing area 220 and along the second side B2 of the first touch area 210A, and the routing area 220 is adjacent to the third second touch area 210B-3 at the second side B2 of the first touch area 210A, so that the second third touch trace 223-2 is electrically connected to the touch chip IC in the routing area 220 and the third touch electrode 213-3 in the third second touch area 210B-3. The touch chip IC transmits a driving signal or detects a sensing signal to the third touch electrode 213-3 by using the second third touch trace 223-2.
In the embodiment of the present invention, the touch chip IC employs the first third touch trace 223-1 to transmit a driving signal or detect a sensing signal to the first third touch electrode 213-1 and the second third touch electrode 213-2; in addition, the touch chip IC transmits a driving signal or detects a sensing signal to the third touch electrode 213-3 by using the second third touch trace 223-2. The first third touch trace 223-1 is adjacent to the first side B1 of the first touch area 210A, the second third touch trace 223-2 is adjacent to the second side B2 of the first touch area 210A, and the first third touch trace 223-1 and the second third touch trace 223-2 are shorter; the first third touch trace 223-1 is electrically connected to the first third touch electrode 213-1 and the second third touch electrode 213-2, the second third touch trace 223-2 is electrically connected to the third touch electrode 213-3, and the load electrically connected to the first third touch trace 223-1 and the load electrically connected to the second third touch trace 223-2 are very small. Therefore, the load of the first third touch trace 223-1/the second third touch trace 223-2 and the load of the electrical connection are very small, so that the influence of the load of the first third touch trace 223-1/the second third touch trace 223-2 on the transmission of the driving signal or the detection of the sensing signal by the touch chip IC is avoided.
As shown in fig. 4, the first touch area 210A further includes a third side B3, the third side B3 is adjacent to the first side B1 and the second side B2; the touch display panel 200 further includes a third touch trace 223-3 extending in the trace area 220; the third touch trace 223-3 extends along the first side B1, the second side B2, and the third side B3; the third touch trace 223-3 is electrically connected to the first third touch electrode 213-1 and electrically connected to the third touch electrode 213-3.
In the embodiment of the invention, the third touch trace 223-3 extends in the trace area 220 and extends along the first side B1, the second side B2 and the third side B3 of the first touch area 210A, and the trace area 220 is adjacent to the first second touch area 210B-1 and the third second touch area 210B-3 on the first side B1 and the third side B3 of the first touch area 210A, so that the third touch trace 223-3 is electrically connected to the first third touch electrode 213-1 in the first second touch area 210B-1 and the third touch electrode 213-3 in the third second touch area 210B-3. Meanwhile, the first third touch trace 223-1 is electrically connected to the touch chip IC, the first third touch electrode 213-1, and the second third touch electrode 213-2. The touch chip IC transmits a driving signal or detects a sensing signal to the first third touch electrode 213-1, the second third touch electrode 213-2, and the third touch electrode 213-3 by using the first third touch trace 223-1 and the third touch trace 223-3. The touch chip IC transmits a driving signal or a sensing signal to the first third touch electrode 213-1, the second third touch electrode 213-2 and the third touch electrode 213-3, so as to prevent the touch chip IC from transmitting the driving signal or the sensing signal and simplify the process of transmitting the driving signal or the sensing signal.
Fig. 8 is a cross-sectional view of another touch display panel 200 in a second touch area 210B according to an embodiment of the invention.
As shown in fig. 3 and 8, the first touch trace 221 and/or the second touch trace 222 and the first touch electrode 211 are located on different film layers, and the first touch trace 221 and/or the second touch trace 222 and the first touch electrode 211 extending to the second touch region 210B are overlapped.
In the embodiment of the invention shown in fig. 3, the second touch trace 222 only extends in the routing area 220 near the lower side of the first touch area 210A, the second touch trace 222 is electrically connected to the second touch electrode 212 in the first touch area 210A at the lower side of the first touch area 210A, and transmits the touch signal to the second touch electrode 212 in the first touch area 210A, the second touch trace 222 does not penetrate through the second touch area 210B, the first touch trace 221 penetrates through the second touch area 210B, the first touch trace 221 is electrically connected to the first touch electrode 211 in the first touch area 210A on the upper and lower sides of the second touch area 210B, and transmits a touch signal to the first touch electrode 211 in the first touch area 210A, so that the first touch trace 221 and the first touch electrode 211 in the second touch area 210B are located on two film layers and overlapped, so that the first touch trace 221 penetrates through the second touch area 210B. In other embodiments of the invention not shown in fig. 3, the second touch trace 222 extends in the trace area 220 and extends to the upper and lower sides of the first touch area 210A through the second touch area 210B, the second touch trace 222 is electrically connected to the second touch electrode 212 in the first touch area 210A at the upper and lower sides of the first touch area 210A and transmits a touch signal to the second touch electrode 212 in the first touch area 210A, so that the second touch trace 222 and the first touch electrode 211 in the second touch area 210B are located on two layers and overlapped so that the second touch trace 222 passes through the second touch area 210B. In this way, the first touch traces 221 and/or the second touch traces 222 are prevented from being disposed around the second touch area 210B in the routing area 220, and the space of the routing area 220 is reduced. The touch display panel 200 further includes a touch surface T for touch control; in the second touch region 210B, the touch surface T is close to one side of the first touch electrode 211 away from the film layer where the first touch wire 221 and/or the second touch wire 222 are located, and the first touch wire 221 and/or the second touch wire 222 are located under the first touch electrode 211, so that the capacitive coupling change between the first touch electrode 211 and the third touch electrode 213 when the touch object is close to the first touch electrode 211 is not affected, and the mutual capacitive touch of the first touch electrode 211 and the third touch electrode 213 is not affected.
As shown in fig. 5, the first touch trace 221 and/or the second touch trace 222 and the first touch electrode 211 are located on the same film layer, the first touch trace 221 and/or the second touch trace 222 do not overlap with the first touch electrode 211 extending to the second touch region 210B, and the first touch trace 221 and/or the second touch trace 222 extend in the trace region 220 surrounding the second touch region 210B.
In the embodiment of the invention shown in fig. 5, the second touch trace 222 only extends in the routing area 220 near the lower side of the first touch area 210A, the second touch trace 222 is electrically connected to the second touch electrode 212 in the first touch area 210A at the lower side of the first touch area 210A, and transmits the touch signal to the second touch electrode 212 in the first touch area 210A, the second touch trace 222 does not surround the second touch area 210B, the first touch trace 221 surrounds the second touch area 210B, the first touch trace 221 is electrically connected to the first touch electrode 211 in the first touch area 210A on the upper and lower sides of the second touch area 210B, and transmits a touch signal to the first touch electrode 211 in the first touch area 210A, so that the first touch trace 221 and the first touch electrode 211 in the second touch area 210B are located in the same film layer and do not overlap, so that the first touch trace 221 surrounds the second touch area 210B. In other embodiments of the invention not shown in fig. 5, the second touch trace 222 extends in the trace area 220 and extends to the upper and lower sides of the first touch area 210A around the second touch area 210B, the second touch trace 222 is electrically connected to the second touch electrode 212 in the first touch area 210A at the upper and lower sides of the first touch area 210A and transmits a touch signal to the second touch electrode 212 in the first touch area 210A, so that the second touch trace 222 and the first touch electrode 211 in the second touch area 210B are located in the same film layer and do not overlap, so that the second touch trace 222 surrounds the second touch area 210B. The first touch trace 221 and/or the second touch trace 222 surround the second touch region 210B, so as to prevent the first touch trace 221 and/or the second touch trace 222 from crossing the second touch region 210B, and prevent the first touch trace 221 and/or the second touch trace 222 from overlapping with the first touch electrode 211 in the second touch region 210B to generate parasitic capacitance.
In the embodiment of the present invention, the first touch region 210A further includes a fourth side B4, the fourth side B4 is adjacent to the first side B1 and the second side B2, the fourth side B4 is opposite to the third side B3, the fourth side B4 is close to the touch chip IC, and the third side B3 is far away from the touch chip IC. In fig. 3 to 5, the first touch trace 221 is electrically connected to the first touch electrode 211 in the first touch region 210A at the first side B1 and the second side B2 of the first touch region 210A, and the second touch trace 222 is electrically connected to the second touch electrode 212 in the first touch region 210A at the fourth side B4 of the first touch region 210A. The first touch trace 221 and the second touch trace 222 can be electrically connected to the first touch electrode 211 and the second touch electrode 212 in the first touch region 210A in various manners. The first touch trace 221 is electrically connected to the first touch electrode 211 in the first touch region 210A at the first side B1 and the second side B2 of the first touch region 210A, and the second touch electrode 212 is electrically connected to the second touch electrode 212 in the first touch region 210A at the third side B3 and the fourth side B4 of the first touch region 210A, so that the attenuation of the first touch trace 221 and the second touch trace 222 in transmitting touch signals is small. The first touch trace 221 is electrically connected to the first touch electrode 211 in the first touch area 210A at the first side B1 or the second side B2 of the first touch area 210A, and the second touch electrode 212 is electrically connected to the second touch electrode 212 in the first touch area 210A at the third side B3 or the fourth side B4 of the first touch area 210A, so as to make a portion of the routing area 220 narrower.
Fig. 9 is a front view of another touch display panel 200 according to an embodiment of the invention.
As shown in fig. 9, the touch display panel 200 further includes a polarizer 240, and the polarizer 240 covers the first touch area 210A, the second touch area 210B, and the routing area 220.
In the embodiment of the present invention, the polarizer 240 covers the first touch area 210A, the second touch area 210B, and the routing area 220; the polarizer 240 protects the first touch area 210A, the second touch area 210B, and the routing area 220 from static electricity and air corrosion.
Fig. 10 is a cross-sectional view of another touch display panel 200 in a second touch area 210B according to an embodiment of the invention.
As shown in fig. 10, the second touch area 210B includes a flexible display layer 230B, and the flexible display layer 230B is used for displaying virtual key images.
In the embodiment of the present invention, in the second touch area 210B, the flexible display layer 230B is configured to display a virtual key image; the first touch electrode 211 and the third touch electrode 213 for mutual capacitive touch are transparent on the flexible display layer 230B. Compared with the side physical keys, the flexible display layer 230B in the second touch area 210B can display dynamic and various virtual key images.
In another embodiment of the present invention, the second touch area 210B is a non-display area. The second touch area 210B has no flexible display layer, so that the flexible display layer is prevented from being bent and broken. A power touch icon or a volume touch icon is disposed at one side of the second touch area 210B, which indicates that the second touch area 210B is used for controlling power or adjusting volume.
In the embodiment of the invention, the second touch area 210B is bent to the side of the touch display panel 200. The touch display panel 200 is disposed in a touch display device, the first touch area 210A is disposed on the front surface of the touch display device, and the second touch area 210B is disposed on the side of the touch display device, replacing the side physical keys in the prior art, and used for controlling the power or adjusting the volume in a touch manner.
FIG. 11 is a front view of a touch display device 300 according to an embodiment of the invention; fig. 12 is a side view of a touch display device 300 according to an embodiment of the invention.
As shown in fig. 11 and 12, in the embodiment of the invention, the touch display device 300 includes a touch display panel 200. The touch display device 300 is a smart phone or other display device. The display panel 200 is described above and will not be described in detail.
In summary, the present invention provides a touch display panel and a touch display device. A touch display panel comprises a first touch area and a bendable second touch area, wherein the first touch area comprises a first side and a second side which are opposite, and the second touch area is adjacent to the first side and/or the second side; the first touch area also comprises a plurality of first touch electrodes and a plurality of second touch electrodes which are arranged in a matrix manner; at least one first touch electrode extends to the second touch area; the second touch area further comprises a third touch electrode; in the second touch area, the first touch electrode and the third touch electrode are used for mutual capacitance touch, the first touch electrode is a touch sensing electrode and the third touch electrode is a touch driving electrode, or the first touch electrode is a touch driving electrode and the third touch electrode is a touch sensing electrode. The second touch area is arranged on the side of the touch display device, replaces a side entity key in the prior art, and is used for controlling a power supply or adjusting volume in a touch mode.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. The touch display panel is characterized by comprising a first touch area and a bendable second touch area, wherein the first touch area comprises a first side and a second side which are opposite, and the second touch area is adjacent to the first side and/or the second side;
the first touch area further comprises a plurality of first touch electrodes and a plurality of second touch electrodes which are arranged in a matrix manner;
at least one first touch electrode extends to the second touch area;
the second touch area further comprises a third touch electrode;
in the second touch area, the first touch electrode and the third touch electrode are used for mutual capacitance type touch, the first touch electrode is a touch sensing electrode and the third touch electrode is a touch driving electrode, or the first touch electrode is a touch driving electrode and the third touch electrode is a touch sensing electrode;
the touch display panel further comprises a wiring area surrounding the first touch area and the second touch area;
the wiring area comprises a first touch wire, a second touch wire and a third touch wire;
the first touch wire is electrically connected with the first touch electrode;
the second touch routing is electrically connected with the second touch electrode;
the third touch routing is electrically connected with the third touch electrode;
the touch display panel comprises at least two second touch areas adjacent to the first side and at least two third touch electrodes;
the first second touch area is separated from the second touch area;
a first one of the third touch electrodes extends in a first one of the second touch areas, and a second one of the third touch electrodes extends in a second one of the second touch areas;
the touch display panel further comprises a first third touch wire extending in the wire area;
a first one of the third touch traces is along the first side;
a first one of the third touch traces is electrically connected to a first one of the third touch electrodes and electrically connected to a second one of the third touch electrodes;
the touch display panel further comprises a third second touch area and a third touch electrode;
a third one of the second touch areas is adjacent to the second side, and a third one of the third touch electrodes extends in the third one of the second touch areas;
the first touch area further comprises a third side, and the third side is adjacent to the first side and the second side;
the touch display panel further comprises a third touch wire extending in the wire area;
a third one of the third touch traces is along the first side, the second side, and the third side;
the third touch trace is electrically connected to the first third touch electrode and to the third touch electrode.
2. The touch display panel according to claim 1, wherein in the first touch area, the first touch electrode and the second touch electrode are used for mutual capacitive touch, the first touch electrode is a touch sensing electrode and the second touch electrode is a touch driving electrode, or the first touch electrode is a touch driving electrode and the second touch electrode is a touch sensing electrode;
the first touch area includes a display layer for displaying an image.
3. The touch display panel according to claim 1, wherein the first touch trace and/or the second touch trace and the first touch electrode are located on different film layers, and the first touch trace and/or the second touch trace and the first touch electrode extending to the second touch area are overlapped.
4. The touch display panel according to claim 1, wherein the first touch trace and/or the second touch trace and the first touch electrode are located on a same film layer, the first touch trace and/or the second touch trace does not overlap with the first touch electrode extending to the second touch area, and the first touch trace and/or the second touch trace extends in the trace area surrounding the second touch area.
5. The touch display panel according to claim 1, further comprising a polarizer covering the first touch area, the second touch area, and the routing area.
6. The touch display panel of claim 1, wherein the second touch area comprises a flexible display layer, and the flexible display layer is configured to display a virtual key image.
7. The touch display panel according to claim 1, wherein the second touch area is a non-display area.
8. The touch display panel according to claim 1, wherein the second touch area is bent to a side surface of the touch display panel.
9. A touch display device, characterized in that the touch display device comprises the touch display panel of any one of claims 1 to 8.
CN201910100139.6A 2019-01-31 2019-01-31 Touch display panel and touch display device Active CN109828689B (en)

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