CN109614013B - Touch display panel and touch display device - Google Patents

Touch display panel and touch display device Download PDF

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Publication number
CN109614013B
CN109614013B CN201910100162.5A CN201910100162A CN109614013B CN 109614013 B CN109614013 B CN 109614013B CN 201910100162 A CN201910100162 A CN 201910100162A CN 109614013 B CN109614013 B CN 109614013B
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touch
electrode
area
trace
electrodes
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CN109614013A (en
Inventor
杨佳瑶
黄凯泓
刘昕昭
程琳
王笑宇
陈敏
王清霞
张鹏
高转
许孜
古赐谊
张启安
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

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 second touch area is adjacent to at least one side of the first touch area; the first touch area comprises a plurality of first touch electrodes and a plurality of second touch electrodes which are arranged in a matrix manner; the second touch area comprises at least one third touch electrode; the area of the third touch electrode is larger than that of the first touch electrode; or the area of the third touch electrode is larger than that of the second touch electrode. Optionally, the first touch area includes a display layer for displaying an image; in the first touch area, 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 touch display panel is arranged in the touch display device, and the second touch area replaces a side entity key and is used for controlling a power supply or adjusting volume.

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, including a first touch area, a bendable second touch area, the second touch area being adjacent to at least one side of the first touch area;
the first touch area comprises a plurality of first touch electrodes and a plurality of second touch electrodes which are arranged in a matrix manner; the second touch area comprises at least one third touch electrode;
the area of the third touch electrode is larger than that of the first touch electrode;
or the area of the third touch electrode is larger than that of the second touch electrode.
Optionally, in the first touch area, 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 second touch area further includes a fourth touch electrode;
the area of the fourth touch electrode is larger than that of the first touch electrode;
or the area of the fourth touch electrode is larger than that of the second touch electrode;
in the second touch area, the third touch electrode is a touch sensing electrode and the fourth touch electrode is a touch driving electrode, or the third touch electrode is a touch driving electrode and the fourth touch electrode is a touch sensing electrode.
Optionally, a distance between the adjacent first touch electrode and the second touch electrode is smaller than a distance between the adjacent third touch electrode and the fourth touch electrode.
Optionally, a distance between two adjacent first touch electrodes is smaller than a distance between two adjacent third touch electrodes, or smaller than a distance between two adjacent fourth touch electrodes;
the distance between two adjacent second touch electrodes is smaller than the distance between two adjacent third touch electrodes, or smaller than the distance between two adjacent fourth touch electrodes.
Optionally, the touch display panel further comprises a routing area surrounding the first touch area and located between the first touch area and the second touch area;
the wiring area comprises a first touch wire, a second touch wire, a third touch wire and a fourth 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 fourth touch trace is electrically connected to the fourth touch electrode.
Optionally, the first touch electrode, the second touch electrode, the third touch electrode, the fourth touch electrode, the first touch trace, the second touch trace, the third touch trace, and the fourth touch trace are located on the same metal layer.
Optionally, the third touch electrode is used for self-contained touch.
Optionally, the first touch electrode and the second touch electrode are used for mutual capacitive touch.
Optionally, a distance between two adjacent first touch electrodes is smaller than a distance between two adjacent third touch electrodes, and a distance between two adjacent second touch electrodes is smaller than a distance between two adjacent third touch electrodes.
Optionally, the touch display panel further comprises a routing area surrounding the first touch area and located between the first touch area and the second touch area;
the wiring area comprises a first touch wire, a second touch wire and a fifth touch wire;
the first touch trace is electrically connected with the first touch electrode, the second touch trace is electrically connected with the second touch electrode, and the fifth touch trace is electrically connected with the third touch electrode.
Optionally, the first touch electrode, the second touch electrode, the third touch electrode, the first touch trace, the second touch trace, and the fifth touch trace are located on the same metal layer.
Optionally, the first touch trace, the second touch trace, and the fifth touch trace are electrically connected to a same touch chip;
or the first touch trace and the second touch trace are electrically connected with the mutual capacitance type touch chip, and the fifth touch trace is electrically connected with the self-capacitance type touch chip.
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 invention, a first touch area is positioned on the front surface of a touch display panel and is used for displaying images and controlling touch; the first touch control units are arranged in a matrix manner, and are used for mutual capacitance type touch control; the second touch area can be bent to the side surface of the touch display panel and used for touch control or used for displaying images and touch control; the third touch control electrodes and other touch control electrodes are arranged in a matrix to form an array of the second touch control unit for mutual capacitance type touch control, or the third touch control electrodes arranged in the matrix form an array of the third touch control unit for self-capacitance type touch control; the touch display panel is arranged in the touch display device, and the second touch area replaces a side entity key and is used for controlling a power supply or adjusting the volume; the volume of the second touch area is smaller than that of the side entity key, and the space of the side entity key is saved in the second touch area; compared with the pressing control of the side entity key, the touch control of the second touch area has higher sensitivity. In addition, the area of the single third touch electrode is larger than that of the single first touch electrode or that of the single second touch electrode; on one hand, compared with the single first touch electrode/second touch electrode, the single third touch electrode has a larger area, and the larger third touch electrode in the second touch area is easy to design and manufacture, so that the product cost is saved; on the other hand, compared with the touch control of the first touch area, the touch control of the second touch area has lower sensitivity but is enough to replace the side physical key for controlling the power supply or adjusting the volume.
[ 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 prior art touch display device 100;
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 front view of another touch display panel 200 according to an embodiment of the invention;
FIG. 7 is a side 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 at AA' in an embodiment of the invention;
FIG. 9 is a cross-sectional view of another touch display panel 200 at BB' in the embodiment of the present invention;
FIG. 10 is a cross-sectional view of another touch display panel 200 at CC' in an 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 ] embodiments
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, embodiments of the present invention provide 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 front view of another touch display panel 200 according to an embodiment of the invention; fig. 7 is a side view of another touch display panel 200 according to an embodiment of the invention.
As shown in fig. 3 to 7, an embodiment of the invention provides a touch display panel 200. The touch display panel 200 includes a first touch area 210A and a bendable second touch area 210B, wherein the second touch area 210B is adjacent to at least one side of the first touch area 210A; the first touch area 210A includes a plurality of first touch electrodes 211 and a plurality of second touch electrodes 212 arranged in a matrix; the second touch area 210B includes at least one third touch electrode 213; the area of the third touch electrode 213 is larger than that of the first touch electrode 211; alternatively, the area of the third touch electrode 213 is larger than that of the second touch electrode 212.
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 are arranged in a matrix to form an array of first touch units S1 for mutual capacitance touch; the second touch area 210B can be bent to the side of the touch display panel 200 for touch control, or for displaying an image and touch control; the third touch electrodes 213 and other touch electrodes are arranged in a matrix to form an array of the second touch unit S2 for mutual capacitive touch, or the third touch electrodes 213 arranged in a matrix form an array of the third touch unit S3 for self capacitive touch; the touch display panel 200 is disposed in the touch display device, and the second touch area 210B replaces a side physical key for controlling a power supply or adjusting a volume; the volume of the second touch area 210B is smaller than that of the side physical key, and the second touch area 210B saves the space of the side physical key; the touch control of the second touch area 210B has higher sensitivity than the press control of the side physical key. In addition, the area of the single third touch electrode 213 is larger than the area of the single first touch electrode 211 or the area of the single second touch electrode 212; on one hand, the single third touch electrode 213 has a larger area than the single first touch electrode 211/second touch electrode 212, and the larger third touch electrode 213 in the second touch area 210B is easy to design and manufacture, thereby saving the product cost; on the other hand, the touch control of the second touch area 210B is not sensitive, but is enough to replace the side physical key for controlling the power or adjusting the volume, compared with the touch control of the first touch area 210A.
Fig. 8 is a cross-sectional view of another touch display panel 200 at AA' in an embodiment of the invention.
As shown in fig. 3 to 8, in the first touch area 210A, the first touch electrodes 211 are touch sensing electrodes and the second touch electrodes 212 are touch driving electrodes, or the first touch electrodes 211 are touch driving electrodes and the second touch electrodes 212 are touch sensing electrodes; the first touch region 210A includes a display layer 230A for displaying an image.
In the embodiment of the 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 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 event is close to 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 event. Therefore, 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 event.
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 and 4, the second touch area 210B further includes a fourth touch electrode 214; the area of the fourth touch electrode 214 is larger than that of the first touch electrode 211; alternatively, the area of the fourth touch electrode 214 is larger than the area of the second touch electrode 212; in the second touch area 210B, the third touch electrode 213 is a touch sensing electrode and the fourth touch electrode 214 is a touch driving electrode, or the third touch electrode 213 is a touch driving electrode and the fourth touch electrode 214 is a touch sensing electrode.
In the embodiment of the invention, in the second touch area 210B, the third touch electrode 213 and the fourth touch electrode 214 are touch driving electrodes or touch sensing electrodes, which form a second touch unit S2 for mutual capacitive touch. The single fourth touch electrode 214 has a larger area than the single first touch electrode 211/second touch electrode 212; moreover, the single third touch electrode 213 has a larger area than the single first touch electrode 211/second touch electrode 212; the area of the single third touch electrode 213 is similar to the area of the single fourth touch electrode 214, so that the situation that the graph is visible due to a large difference between the area of the single third touch electrode 213 and the area of the single fourth touch electrode 214 is avoided. The first touch electrode 211 and the second touch electrode 212 form a first touch unit S1, the third touch electrode 213 and the fourth touch electrode 214 form a second touch unit S2, the area of the single third touch electrode 213/the fourth touch electrode 214 is larger than that of the single first touch electrode 211/the second touch electrode 212, the area of the single second touch unit S2 is larger than that of the single first touch unit S1, and the larger second touch unit S2 in the second touch area 210B is easy to design and manufacture, saves product cost, and is enough to replace a side physical key for controlling power or adjusting volume.
As shown in fig. 3 and 4, a distance D1 between the adjacent first touch electrode 211 and the second touch electrode 212 is smaller than a distance D2 between the adjacent third touch electrode 213 and the fourth touch electrode 214.
In the embodiment of the present invention, the distance D1 between the adjacent first touch electrode 211 and the adjacent second touch electrode 212 refers to the minimum distance between the adjacent first touch electrode 211 and the adjacent second touch electrode 212, and the distance D2 between the adjacent third touch electrode 213 and the adjacent fourth touch electrode 214 refers to the minimum distance between the adjacent third touch electrode 213 and the adjacent fourth touch electrode 214. The single first touch unit S1 includes a space between the first touch electrode 211 and the second touch electrode 212, the single second touch unit S2 includes a space between the third touch electrode 213 and the fourth touch electrode 214, a minimum distance between the first touch electrode 211 and the second touch electrode 212 is smaller than a minimum distance between the third touch electrode 213 and the fourth touch electrode 214, and an area of the single second touch unit S2 is larger than that of the single first touch unit S1.
As shown in fig. 3, in the embodiment of the invention, the single second touch region 210B includes a third touch electrode 213 and a fourth touch electrode 214, that is, the single second touch region 210B includes a second touch unit S2, the area of the single second touch region 210B is similar to the area of the single second touch unit S2, the single second touch unit S2 occupies the single second touch region 210B, and the area of the single second touch unit S2 in the former case is larger than the area of the single second touch unit S2 in the latter case, compared to the case that the plurality of second touch units S2 occupy the single second touch region 210B, the former case is easy to design and manufacture.
As shown in fig. 4, a distance D3 between two adjacent first touch electrodes 211 is smaller than a distance D5 between two adjacent third touch electrodes 213, or smaller than a distance D6 between two adjacent fourth touch electrodes 214; the distance D4 between two adjacent second touch electrodes 212 is less than the distance D5 between two adjacent third touch electrodes 213, or less than the distance D6 between two adjacent fourth touch electrodes 214.
In the embodiment of the present invention, the single second touch area 210B includes at least two third touch electrodes 213 and at least two fourth touch electrodes 214. The distance D3 between two adjacent first touch electrodes 211 refers to the minimum distance between two adjacent first touch electrodes 211, the distance D4 between two adjacent second touch electrodes 212 refers to the minimum distance between two adjacent second touch electrodes 212, the distance D5 between two adjacent third touch electrodes 213 refers to the minimum distance between two adjacent third touch electrodes 213, and the distance D6 between two adjacent fourth touch electrodes 214 refers to the minimum distance between two adjacent fourth touch electrodes 214. The minimum distance between two adjacent first/second touch electrodes 211/212 is smaller than the minimum distance between two adjacent third/fourth touch electrodes 213/214, and the minimum distance between two adjacent first touch units S1 is smaller than the minimum distance between two adjacent second touch units S2; the distribution density of the second touch units S2 is less than that of the first touch units S1; the sparsely distributed second touch units S2 in the second touch area 210B are easy to design and manufacture, save production cost, and can be used to replace side physical keys for controlling power or adjusting volume.
As shown in fig. 3 and 4, the touch display panel 200 further includes a routing area 220, the routing area 220 surrounds the first touch area 210A and is located between 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, a third touch trace 223 and a fourth touch trace 224; the first touch trace 221 is electrically connected to the first touch electrode 211; the second touch trace 222 is electrically connected to the second touch electrode 212; the third touch trace 223 is electrically connected to the third touch electrode 213; the fourth touch trace 224 is electrically connected to the fourth touch electrode 214.
In the embodiment of the invention, the routing area 220 surrounds the first touch area 210A and is located between the first touch area 210A and the second touch area 210B, so that the first touch trace 221 in the routing area 220 is electrically connected to the first touch electrode 211 in the first touch area 210A, so that the second touch trace 222 in the routing area 220 is electrically connected to the second touch electrode 212 in the first touch area 210A, so that 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, and so that the fourth touch trace 224 in the routing area 220 is electrically connected to the fourth touch electrode 214 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, the third touch trace 223 and the fourth touch trace 224. The touch chip IC employs the first touch trace 221 to transmit a driving signal or a detection sensing signal to the first touch electrode 211, employs the second touch trace 222 to detect a sensing signal or a transmission driving signal to the second touch electrode 212, employs the third touch trace 223 to transmit a driving signal or a detection sensing signal to the third touch electrode 213, and employs the fourth touch trace 224 to detect a sensing signal or a transmission driving signal to the fourth touch electrode 214.
As shown in fig. 3 and 4, the first touch electrode 211, the second touch electrode 212, the third touch electrode 213, the fourth touch electrode 214, the first touch trace 221, the second touch trace 222, the third touch trace 223, and the fourth touch trace 224 are located on the same metal layer.
In the embodiment of the invention, the first touch electrode 211, the second touch electrode 212, the third touch electrode 213, the fourth touch electrode 214, the first touch trace 221, the second touch trace 222, the third touch trace 223 and the fourth touch trace 224 are located on the same metal layer, and are formed by one-time patterning of the same metal layer, so that multiple patterning is avoided, and the manufacturing process is shortened.
As shown in fig. 5 and 6, the third touch electrode 213 is used for self-contained touch.
In the embodiment of the invention, in the second touch area 210B, the third touch electrode 213 is a self-contained touch electrode, and constitutes a third touch unit S3 for self-contained touch. In the self-contained touch, the touch display panel 200 includes self-contained touch electrodes and a touch chip IC. Capacitive coupling exists between the self-capacitance touch electrode and the ground. The self-contained touch electrode is electrically connected with the touch chip IC, and the touch chip IC detects an induction signal for the self-contained touch electrode. And the touch chip IC determines the capacitive coupling between the self-capacitance touch electrode and the ground according to the induction signal. When a touch event approaches the self-capacitance touch electrode, the capacitance coupling between the self-capacitance touch electrode and the ground changes, and the sensing signal changes. And the touch chip IC determines the capacitance coupling change between the touch electrode and the ground according to the induction signal, and accordingly judges the touch event. Thus, the third touch electrode 213 is a self-capacitance touch electrode, and the capacitance coupling change between the third touch electrode 213 and the ground is used to determine the touch event.
In the embodiment of the invention, the second touch area 210B includes self-contained touch electrodes. In the self-capacitance touch control, one self-capacitance touch control electrode forms one touch control unit, and the area of one self-capacitance touch control electrode is similar to that of one touch control unit; in mutual capacitance touch, a touch driving electrode and a touch sensing electrode form a touch unit, and the area of the touch driving electrode or the area of the touch sensing electrode is smaller than that of the touch unit. The area of the single self-capacitance touch electrode is larger than that of the single touch driving electrode/touch sensing electrode. The self-contained touch electrodes in the second touch area 210B are easier to design and manufacture, save product cost, and can be used to replace side physical keys for controlling power or adjusting volume.
As shown in fig. 5, in the embodiment of the present invention, the single second touch region 210B includes one third touch electrode 213, the area of the single second touch region 210B is similar to the area of the single third touch electrode 213, the single third touch electrode 213 occupies the single second touch region 210B, and compared with the case that the plurality of third touch electrodes 213 occupy the single second touch region 210B, the area of the former single third touch electrode 213 is larger than that of the latter single third touch electrode 213, and the former is easy to design and manufacture.
As shown in fig. 3 to 6, the first touch electrode 211 and the second touch electrode 212 are used for mutual capacitive touch.
In the embodiment of the present invention, 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.
As shown in fig. 6, a distance D3 between two adjacent first touch electrodes 211 is less than a distance D5 between two adjacent third touch electrodes 213, and a distance D4 between two adjacent second touch electrodes 212 is less than a distance D5 between two adjacent third touch electrodes 213.
In the embodiment of the present invention, the second touch area 210B includes at least two third touch electrodes 213. The minimum distance between two adjacent first/second touch electrodes 211/212 is smaller than the minimum distance between two adjacent third touch electrodes 213, and the minimum distance between two adjacent first touch units S1 is smaller than the minimum distance between two adjacent third touch units S3; the distribution density of the third touch units S3 is less than that of the first touch units S1; the sparsely distributed third touch units S3 in the second touch area 210B are easy to design and manufacture, save production cost, and can be used to replace side physical keys for controlling power or adjusting volume.
As shown in fig. 5 and 6, the touch display panel 200 further includes a routing area 220, the routing area 220 surrounds the first touch area 210A and is located between 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 fifth touch trace 225; the first touch trace 221 is electrically connected to the first touch electrode 211, the second touch trace 222 is electrically connected to the second touch electrode 212, and the fifth touch trace 225 is electrically connected to the third touch electrode 213.
In the embodiment of the invention, the routing area 220 surrounds the first touch area 210A and is located between the first touch area 210A and the second touch area 210B, so that the first touch trace 221 in the routing area 220 is electrically connected to the first touch electrode 211 in the first touch area 210A, so that the second touch trace 222 in the routing area 220 is electrically connected to the second touch electrode 212 in the first touch area 210A, and so that the fifth touch trace 225 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 fifth touch trace 225. The touch chip IC employs the first touch trace 221 to transmit a driving signal or a detection sensing signal to the first touch electrode 211, employs the second touch trace 222 to detect a sensing signal or a transmission driving signal to the second touch electrode 212, and employs the fifth touch trace 225 to detect a sensing signal to the third touch electrode 213.
As shown in fig. 5 and 6, the first touch electrode 211, the second touch electrode 212, the third touch electrode 213, the first touch trace 221, the second touch trace 222, and the fifth touch trace 225 are located on the same metal layer.
In the embodiment of the invention, the first touch electrode 211, the second touch electrode 212, the third touch electrode 213, the first touch trace 221, the second touch trace 222, and the fifth touch trace 225 are located on the same metal layer, and are formed by one-time patterning of the same metal layer, so that multiple patterning is avoided, and the manufacturing process is shortened.
As shown in fig. 5 to 6, the first touch trace 221, the second touch trace 222, and the fifth touch trace 225 are electrically connected to the same touch chip IC; alternatively, the first touch trace 221 and the second touch trace 222 are electrically connected to the mutual capacitance type touch chip, and the fifth touch trace 225 is electrically connected to the self-capacitance type touch chip.
In the embodiment of the present invention, the routing area 220 includes one touch chip IC, and the single touch chip IC is used for mutual capacitive touch and self capacitive touch, in the mutual capacitive touch, the first touch trace 221/the second touch trace 222 are used to transmit a driving signal or detect a sensing signal, and in the self capacitive touch, the fifth touch trace 225 is used to detect a sensing signal; alternatively, the routing area 220 includes a mutual capacitive touch chip for mutual capacitive touch, which transmits a driving signal or a detection sensing signal by using the first touch trace 221/the second touch trace 222, and a self capacitive touch chip for self capacitive touch, which detects a sensing signal by using the fifth touch trace 225.
FIG. 9 is a cross-sectional view of another touch display panel 200 at BB' in the embodiment of the present invention; fig. 10 is a cross-sectional view of another touch display panel 200 at CC' according to an embodiment of the invention.
As shown in fig. 9 and 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, the flexible display layer 230B is used for displaying a virtual key image; the third touch electrode 213 and the fourth touch electrode 214 for mutual capacitive touch transmit light on the flexible display layer 230B, or the third touch electrode 213 for self capacitive touch transmit light 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 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 key icon or a volume key icon is disposed on 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 the touch display device, and the second touch area 210B replaces a side physical key for controlling a power supply or adjusting a volume.
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 second touch area is adjacent to at least one side of the first touch area; the first touch area comprises a plurality of first touch electrodes and a plurality of second touch electrodes which are arranged in a matrix manner; the second touch area comprises at least one third touch electrode; the area of the third touch electrode is larger than that of the first touch electrode; or the area of the third touch electrode is larger than that of the second touch electrode. Optionally, the first touch area includes a display layer for displaying an image; in the first touch area, 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 touch display panel is arranged in the touch display device, and the second touch area replaces a side entity key and is used for controlling a power supply or adjusting volume.
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 (12)

1. A touch display panel is characterized by comprising a first touch area and a bendable second touch area, wherein the second touch area is adjacent to at least one side of the first touch area;
the first touch area comprises a plurality of first touch electrodes and a plurality of second touch electrodes which are arranged in a matrix manner; the second touch area comprises at least one third touch electrode, the second touch area comprises a flexible display layer, and the flexible display layer is used for displaying a virtual key image;
the area of the third touch electrode is larger than that of the first touch electrode; or the area of the third touch electrode is larger than that of the second touch electrode;
the second touch area further comprises a fourth touch electrode, the third touch electrode and the fourth touch electrode are mutual capacitance type touch electrodes, the area of the fourth touch electrode is larger than that of the first touch electrode or the second touch electrode, the distance between the adjacent first touch electrode and the second touch electrode is smaller than that between the adjacent third touch electrode and the fourth touch electrode, and the distance is the distance in the plane extending direction of the touch display panel;
alternatively, the first and second electrodes may be,
the third touch electrodes are used for self-contained touch, the distance between two adjacent first touch electrodes is smaller than the distance between two adjacent third touch electrodes, and the distance between two adjacent second touch electrodes is smaller than the distance between two adjacent third touch electrodes.
2. The touch display panel according to claim 1, wherein in the first touch area, 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 further comprises a display layer for displaying images.
3. The touch display panel according to claim 1, wherein in the second touch area, the third touch electrode is a touch sensing electrode and the fourth touch electrode is a touch driving electrode, or the third touch electrode is a touch driving electrode and the fourth touch electrode is a touch sensing electrode.
4. The touch display panel according to claim 1, wherein a distance between two adjacent first touch electrodes is smaller than a distance between two adjacent third touch electrodes, or smaller than a distance between two adjacent fourth touch electrodes;
the distance between two adjacent second touch electrodes is smaller than the distance between two adjacent third touch electrodes, or smaller than the distance between two adjacent fourth touch electrodes.
5. The touch display panel according to claim 1, further comprising a routing area surrounding the first touch area and located between the first touch area and the second touch area;
the wiring area comprises a first touch wire, a second touch wire, a third touch wire and a fourth 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 fourth touch trace is electrically connected to the fourth touch electrode.
6. The touch display panel according to claim 5, wherein the first touch electrode, the second touch electrode, the third touch electrode, the fourth touch electrode, the first touch trace, the second touch trace, the third touch trace, and the fourth touch trace are located on a same metal layer.
7. The touch display panel according to claim 1, wherein the first touch electrode and the second touch electrode are used for mutual capacitive touch.
8. The touch display panel according to claim 1, further comprising a routing area surrounding the first touch area and located between the first touch area and the second touch area;
the wiring area comprises a first touch wire, a second touch wire and a fifth touch wire;
the first touch trace is electrically connected with the first touch electrode, the second touch trace is electrically connected with the second touch electrode, and the fifth touch trace is electrically connected with the third touch electrode.
9. The touch display panel according to claim 7, wherein the first touch electrode, the second touch electrode, the third touch electrode, the first touch trace, the second touch trace, and the fifth touch trace are located on a same metal layer.
10. The touch display panel according to claim 7, wherein the first touch trace, the second touch trace and the fifth touch trace are electrically connected to a same touch chip;
or the first touch trace and the second touch trace are electrically connected with the mutual capacitance type touch chip, and the fifth touch trace is electrically connected with the self-capacitance type touch chip.
11. The touch display panel according to claim 1, wherein the second touch area is bent to a side surface of the touch display panel.
12. A touch display device, characterized in that the touch display device comprises the touch display panel of any one of claims 1 to 11.
CN201910100162.5A 2019-01-31 2019-01-31 Touch display panel and touch display device Active CN109614013B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203966091U (en) * 2014-06-13 2014-11-26 宝宸（厦门）光学科技有限公司 Contact panel and touch control electronic device
CN108874222A (en) * 2018-06-26 2018-11-23 京东方科技集团股份有限公司 Touch base plate, touch screen and touch device

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JP5432193B2 (en) * 2011-01-18 2014-03-05 株式会社ジャパンディスプレイ Display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203966091U (en) * 2014-06-13 2014-11-26 宝宸（厦门）光学科技有限公司 Contact panel and touch control electronic device
CN108874222A (en) * 2018-06-26 2018-11-23 京东方科技集团股份有限公司 Touch base plate, touch screen and touch device

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