WO2021092993A1 - 显示装置和终端 - Google Patents

显示装置和终端 Download PDF

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Publication number
WO2021092993A1
WO2021092993A1 PCT/CN2019/119988 CN2019119988W WO2021092993A1 WO 2021092993 A1 WO2021092993 A1 WO 2021092993A1 CN 2019119988 W CN2019119988 W CN 2019119988W WO 2021092993 A1 WO2021092993 A1 WO 2021092993A1
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WO
WIPO (PCT)
Prior art keywords
touch
units
electrode
electrodes
same
Prior art date
Application number
PCT/CN2019/119988
Other languages
English (en)
French (fr)
Inventor
郑介鑫
刘启坤
Original Assignee
深圳市华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US16/623,787 priority Critical patent/US11275472B2/en
Publication of WO2021092993A1 publication Critical patent/WO2021092993A1/zh

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Classifications

    • 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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Definitions

  • This application relates to the field of display technology, and in particular to a display device and a terminal.
  • the driving electrodes and the sensing electrodes that are close to each other form a lateral capacitance
  • the driving electrodes are used as input terminals to input sine wave signals
  • the sensing electrodes are used as detection terminals.
  • Both the input terminal and the detection terminal need to be connected to the pins on the flexible circuit board through electrode wires. Since one input terminal corresponds to multiple detection terminals, each input terminal and each detection terminal needs to be connected to an electrode wire and pin In the end, too many pins are needed, and the width of the flexible circuit board is too large to meet the needs of narrow bezels.
  • the existing display device has a technical problem that there are too many electrode lines of the touch electrode, which needs to be improved.
  • the present application provides a display device to alleviate the technical problem of excessive electrode lines of touch electrodes in the existing display device.
  • This application provides a display device, including:
  • the touch layer is formed on one side of the display panel, and includes a plurality of first touch electrodes and a plurality of second touch electrodes that are arranged in the same layer and are not in contact with each other.
  • the first touch electrodes and the first electrode lines Connected, the second touch electrode is connected to a second electrode line, the first touch electrode and the second touch electrode are alternately arranged along a first direction, and the second touch electrode includes a line along a second direction
  • the second direction is perpendicular to the first direction, and the surface areas of the multiple touch units in the same second touch electrode are not equal.
  • the surface areas of the multiple touch units gradually increase along the second direction.
  • the surface area of the multiple touch units gradually decreases from the middle to the two ends.
  • the number of touch units in all second touch electrodes is equal, and the surface area of each touch unit in different second touch electrodes is correspondingly equal.
  • the arrangement sequence of the touch units in all the second touch electrodes is the same.
  • the arrangement order of touch units in at least part of the second touch electrodes is different from the arrangement order of touch units in other second touch electrodes.
  • the plurality of second touch electrodes are arranged along the first direction, and the arrangement order of the touch units in all the odd-numbered second touch electrodes is the same, and the odd-numbered and even-numbered second touch electrodes are arranged in the same order.
  • the arrangement order of the touch unit in the control electrode is different.
  • the touch layer includes a first repeating unit and a second repeating unit, and both the first repeating unit and the second repeating unit include at least two adjacent second touch electrodes ,
  • the order of the touch units of the second touch electrodes in the first repeating unit is the same, the order of the touch units of the second touch electrodes in the second repeating unit is the same, and the first repeating unit and the The arrangement sequence of the touch units of the second touch electrodes in the second repeating unit is different, and the first repeating unit and the second repeating unit are alternately arranged along the first direction.
  • the number of touch units in all second touch electrodes is equal, and in different second touch electrodes, the surface area of each touch unit is at least partially unequal.
  • the surface shape of the touch unit is at least one of a rectangle, a trapezoid, or a circle.
  • the present application also provides a terminal, including a display device and a main board connected to the display device, the display device including:
  • the touch layer is formed on one side of the display panel, and includes a plurality of first touch electrodes and a plurality of second touch electrodes that are arranged in the same layer and are not in contact with each other.
  • the first touch electrodes and the first electrode lines Connected, the second touch electrode is connected to a second electrode line, the first touch electrode and the second touch electrode are alternately arranged along a first direction, and the second touch electrode includes a line along a second direction
  • the second direction is perpendicular to the first direction, and the surface areas of the multiple touch units in the same second touch electrode are not equal.
  • the surface areas of the multiple touch units gradually increase along the second direction.
  • the surface area of the multiple touch units gradually decreases from the middle to the two ends.
  • the number of touch units in all second touch electrodes is equal, and the surface area of each touch unit in different second touch electrodes is correspondingly equal.
  • the arrangement sequence of the touch units in all the second touch electrodes is the same.
  • the order of arrangement of touch units in at least part of the second touch electrodes is different from the order of arrangement of touch units in other second touch electrodes.
  • the arrangement order of the touch units in all the odd-numbered second touch electrodes is the same, and the odd-numbered and even-numbered second touch electrodes are arranged in the same order.
  • the arrangement order of the touch unit in the electrode is different.
  • the touch layer includes a first repeating unit and a second repeating unit, and both the first repeating unit and the second repeating unit include at least two adjacent second touch electrodes,
  • the arrangement order of the touch units of the second touch electrodes in the first repeating unit is the same, the arrangement order of the touch units of the second touch electrodes in the second repeating unit is the same, and the first repeating unit and the The arrangement order of the touch units of the second touch electrodes in the second repeating unit is different, and the first repeating unit and the second repeating unit are alternately arranged along the first direction.
  • the number of touch units in all second touch electrodes is equal, and in different second touch electrodes, the surface area of each touch unit is at least partially unequal.
  • the surface shape of the touch unit is at least one of a rectangle, a trapezoid, or a circle.
  • the present application provides a display device and a terminal.
  • the display device includes a display panel and a touch layer.
  • the touch layer is formed on one side of the display panel and includes a plurality of first touch electrodes arranged in the same layer and not in contact with each other And a plurality of second touch electrodes, the first touch electrode is connected to a first electrode line, the second touch electrode is connected to a second electrode line, and the first touch electrode is connected to the second touch electrode.
  • the control electrodes are alternately arranged in a first direction, the second touch electrodes include a plurality of touch units arranged in a second direction and connected to each other, the second direction is perpendicular to the first direction, and the same second touch
  • the surface areas of the multiple touch units in the electrode are not equal.
  • the second touch electrode By setting the second touch electrode as a plurality of touch units connected to each other with different surface areas, corresponding to the same first touch electrode, when a finger touches a different position on the second touch electrode, the corresponding capacitance value changes It is also different. Therefore, the capacitance change value of multiple points on the second touch electrode can be measured through a second electrode line, thereby greatly reducing the number of electrode lines, and the number of pins required for subsequent binding with the flexible circuit board The number is also greatly reduced, thereby reducing the width of the flexible circuit board and realizing a narrow frame.
  • FIG. 1 is a schematic diagram of the structure of a touch layer in a display device in the prior art
  • FIG. 2 is a schematic diagram of a first plan structure of a touch layer in a display device provided by an embodiment of the application;
  • FIG. 3 is a schematic diagram of a second plan structure of a touch layer in a display device provided by an embodiment of the application;
  • FIG. 4 is a schematic diagram of equivalent capacitance of a touch layer in a display device provided by an embodiment of the application.
  • the present application provides a display device and a terminal to alleviate the technical problem of excessive electrode lines of touch electrodes in the existing display device.
  • FIG. 2 it is a schematic diagram of the first planar structure of the touch layer in the display device provided by the embodiment of the application.
  • the display device includes a display panel and a touch layer 200.
  • the touch layer 200 is formed on one side of the display panel and includes a plurality of first touch electrodes 101 and a plurality of second touch electrodes 201 that are arranged in the same layer and do not contact each other.
  • One touch electrode 101 is connected to the first electrode line 102
  • the second touch electrode 201 is connected to the second electrode line 202
  • the first touch electrode 101 and the second touch electrode 201 are alternately arranged along the first direction X
  • the second The touch electrode 201 includes a plurality of touch units 2011 arranged along a second direction Y and connected to each other.
  • the second direction Y is perpendicular to the first direction X.
  • the surface areas of the plurality of touch units 2011 in the same second touch electrode 201 are equal. not equal.
  • the display panel may be an OLED display panel or a liquid crystal display panel.
  • the display panel is an OLED display panel, it includes a substrate, a driving circuit layer, and a light-emitting layer.
  • the display panel is a liquid crystal display panel, it includes a first substrate, a second substrate and a liquid crystal layer filled between the first substrate and the second substrate.
  • the first substrate is an array substrate, including a stacked first substrate, a driving circuit layer, and pixel electrodes
  • the second substrate is a color filter substrate, including a stacked second substrate, a black matrix, and a color resist layer. , Common electrode.
  • the first substrate includes a stacked first substrate, a driving circuit layer, a color resist layer, and a pixel electrode
  • the second substrate includes a stacked second substrate, a black matrix, and a common electrode.
  • Polarizers are formed on both sides of the display panel, and the touch layer 200 is formed between the display panel and the polarizer, that is, On Cell structure.
  • the display device of the On Cell structure is relatively thin and light, and is widely used in the display device.
  • the touch layer 200 of the present application adopts a single-layer mutual capacitance structure, that is, the first touch electrode 101 and the second touch electrode 201 are both formed on the same layer.
  • the first touch electrode 101 is a driving electrode TX
  • the second touch electrode 201 is a sensing electrode RX.
  • Both the first touch electrode 101 and the second touch electrode 201 are strip-shaped structures and are alternately arranged along the first direction X.
  • the first touch electrode 101 and the second touch electrode 201 are insulated from each other, that is, do not contact each other, and a lateral capacitance is formed between the adjacent first touch electrode 101 and the second touch electrode 201.
  • the first touch electrode 101 is connected to the first electrode line 102, and the second touch electrode 201 is connected to the second electrode line 202.
  • the first electrode line 102 and the second electrode line 202 is connected to the pin 301 on the flexible circuit board, and realizes electrical signal transmission with the flexible circuit board.
  • the second touch electrodes 201 have a strip-shaped structure, and each second touch electrode 201 includes a plurality of touch units 2011, and the plurality of touch units 2011 are arranged along the second direction Y and connected to each other, and each touch unit 2011 It includes a surface 2012. When the finger touches the surface 2012, the finger touches the surface 2012. In the same second touch electrode 201, the surface areas of all touch units 2011 are different.
  • the first touch electrode 101 is used as an input terminal to input a sine wave signal
  • the adjacent second touch electrode 201 is used as a detection terminal, and the corresponding AC is obtained through the coupling capacitor between the two.
  • Waveform when no touch action is performed, the detected AC waveform remains stable, and when the finger touches the touch layer 200, the finger touches the surface 2012 of the touch unit 2011, and the capacitance formed between the finger and the touch layer 200
  • the coupling capacitance between the first touch electrode 101 and the second touch electrode 201 will be reduced, resulting in a weaker amplitude of the detected AC signal, so that the coordinates of the touch position can be determined according to the detection result.
  • FIG. 4 an equivalent schematic diagram of the capacitance of the touch layer in the display device provided by the embodiment of the present application.
  • One RX1 is selected from the second touch electrodes 201, and the first touch electrodes 101 adjacent to the two sides of RX1 are TX1 and TX2, respectively, and a coupling capacitor C is generated between RX1 and TX1 and TX2 on the left and right sides.
  • TX1 is also equivalent to a multi-segment connection, where each segment corresponds to a touch unit 2011, and the resistance of each segment is R.
  • the resistances of each touch unit 2011 in RX1 are R1, R2, ..., Rn, respectively. Because the surface area of each touch unit 2011 is different, the resistances are not equal.
  • TX2 is also equivalent to a multi-segment connection, where each segment corresponds to a touch unit 2011, and the resistance of each segment is R.
  • the capacitance generated between the two is also different, and the corresponding sinusoidal signal changes The amplitude is also different. Therefore, first determine the second electrode line 202 with a change in the detected signal, thereby determining the X coordinate of the touch point, and then correspond to this second electrode line 202, and inversely calculate the magnitude of the detected change in capacitance. To determine the Y coordinate of the touch point when the finger touches the position.
  • FIG. 1 it is a schematic diagram of the structure of a touch layer in a display device in the prior art.
  • the touch layer includes driving electrodes 10 and sensing electrodes 20.
  • the number of sensing electrodes 20 adjacent to the same driving electrode 10 is multiple, and the sensing electrodes 20 are not in contact with each other.
  • a signal is input to a driving electrode 10, corresponding to the same X value, if you want to detect touch conditions at different points in the Y direction, you need to draw a sensing electrode line 21 from each sensing electrode 20 to detect the corresponding sensing electrode respectively
  • the change of the coupling capacitance between 20 and the driving electrode 10 can determine the correct touch point coordinates.
  • a driving electrode line 10 needs to be drawn, and corresponding to each sensing electrode 20, a sensing electrode line 20 needs to be drawn, and the driving electrode line 10 and the sensing electrode line 20 need to be connected to the flexible circuit board.
  • Connect on pin 30 Corresponding to a display device with a resolution of (a, b), that is, there are driving electrodes 10 in column a and sensing electrodes 20 in row b. The total number of pins required is a*(1+b). When the display panel size increases , The excessive number of pins will cause the width of the flexible circuit board to be unable to correspond, and limit the application range of the touch layer of the single-layer mutual capacitance structure.
  • the second touch electrode 201 is configured as a structure in which a plurality of touch units 2011 are connected, which is equivalent to one second touch electrode 201, and each second touch electrode 201 is provided with one second electrode. Line 202.
  • the total number of pins required is 2a. When the size of the display panel in the second direction increases, the number of pins will not increase, so that the applicability for large-size panels is enhanced.
  • the second touch electrode 201 is configured as a plurality of touch units 2011 that are connected to each other and have different surface areas, corresponding to the same first touch electrode 101, when a finger touches different positions on the second touch electrode 201 , The corresponding capacitance value changes are also different, so the capacitance change values of multiple points on the second touch electrode 201 can be measured through a second electrode line 202, thereby greatly reducing the number of electrode lines.
  • the number of pins 301 required for bonding is also greatly reduced, thereby reducing the width of the flexible circuit board and realizing a narrow frame.
  • the number of touch units 2011 in all second touch electrodes 201 is equal, and the surface area of each touch unit 2011 in different second touch electrodes 201 is correspondingly equal.
  • each touch unit 2011 in the same second touch electrode 201 is different. Assume that one of the second touch electrodes 201 has n touch units 2011, and the surface area of each touch unit 2011 is S1, S2, ... . And Sn indicate that each of the remaining second touch electrodes 201 also includes n touch units 2011, and the surface areas of the n touch units 2011 are also S1, S2,..., Sn, that is, the entire In the display device, the surface area of the touch unit 2011 has only n different values. In this way, when preparing the touch layer 200, there is no need to set too many surface area values, and the preparation is relatively simple.
  • the order of the touch units 2011 in the same second touch electrode 201 can be arranged in multiple ways.
  • the surface areas of the multiple touch units 2011 gradually increase along the second direction Y.
  • the second direction Y is the up-down direction in the figure, and the surface areas of the multiple touch units 2011 may gradually increase along the second direction Y, or may gradually decrease.
  • the capacitance change amplitude also shows a regular increase or decrease during touch, making detection easier and easier to operate.
  • the surface areas of the multiple touch units 2011 gradually decrease from the middle to the two ends.
  • the user touches the middle part of the display panel with a higher frequency and touches the two ends with a lower frequency, so the middle part has a higher sensitivity to touch.
  • the sensitivity of the control is higher.
  • the arrangement order of the multiple touch units 2011 is not limited to this, and other methods are also possible. Designers in the art can reasonably set the arrangement order of the multiple touch units 2011 as needed.
  • each touch unit 2011 is different.
  • a plurality of second touch electrodes 201 are provided, and the arrangement order of the touch units 2011 in each second touch electrode 201 may be the same or different.
  • the arrangement order of the touch units 2011 in all the second touch electrodes 201 is the same. Ignore the number of columns where the first touch electrodes 101 are located, and only calculate the number of columns where the second touch electrodes 201 are located.
  • the two directions Y gradually increase, and the arrangement order of the touch units 2011 in the second touch electrodes 201 of the other columns is the same as the arrangement order of the second touch electrodes 201 in the first column, that is, they are all arranged according to the surface area along the first row.
  • the two directions Y gradually increase in order.
  • the touch layer 200 is relatively simple and easy to manufacture, the amount of corresponding capacitance change value data is small, and it is easy to manage.
  • the arrangement order of the touch units 2011 in at least part of the second touch electrodes 201 is different from the arrangement order of the touch units 2011 in other second touch electrodes 201.
  • the arrangement order of the touch units 2011 in all the odd-numbered second touch electrodes 201 is the same, and the odd-numbered and even-numbered second touch electrodes 201 are arranged in the same order.
  • the arrangement order of the touch units 2011 in the two touch electrodes 201 is different.
  • the first, third, and fifth rows are arranged in odd-numbered second touch electrodes 201,
  • the surface area of the plurality of touch units 2011 gradually increases along the second direction Y, and in the second touch electrodes 201 in other columns, the surface area of each touch unit 2011 may gradually decrease along the second direction Y, or Both gradually decrease from the middle to the two ends, or one part gradually decreases along the second direction Y, and the other part gradually decreases from the middle to the two ends.
  • the arrangement order of the touch units 2011 in all the even-numbered second touch electrodes 201 is the same, and the arrangement is odd and arranged.
  • the arrangement order of the touch units 2011 in the even-numbered second touch electrodes 201 is different.
  • the second, fourth, and sixth columns are arranged in even-numbered second touch electrodes 201,
  • the surface area of the plurality of touch units 2011 gradually increases along the second direction Y, and in the second touch electrodes 201 in other columns, the surface area of each touch unit 2011 may gradually decrease along the second direction Y, or Both gradually decrease from the middle to the two ends, or one part gradually decreases along the second direction Y, and the other part gradually decreases from the middle to the two ends.
  • the arrangement order of the touch units 2011 in two adjacent second touch electrodes 201 is different, so when the finger touches, the voltage generated by the two adjacent second touch electrodes 201 is different.
  • the detected voltage changes are also different, which improves the accuracy of detection.
  • the touch layer 200 includes a first repeating unit and a second repeating unit. Both the first repeating unit and the second repeating unit include at least two adjacent second touch electrodes 201.
  • the first repeating unit The arrangement order of the touch units 2011 of the second touch electrode 201 in the second repetitive unit is the same, and the arrangement order of the touch units 2011 of the second touch electrode 201 in the second repetitive unit is the same, and the first repetitive unit and the second touch unit 2011 of the second repetitive unit
  • the touch unit 2011 of the control electrode 21 is arranged in a different order, and the first repeating unit and the second repeating unit are alternately arranged along the first direction X.
  • At least two adjacent second touch electrodes 201 are used as the first repeating unit, and at least two adjacent second touch electrodes 201 are used as the second repeating unit.
  • the touch unit 2011 is arranged in the same order, and the first repeating unit and the second repeating unit are alternately arranged along the first direction X.
  • the number of second touch electrodes 201 included in the first repeating unit and the second repeating unit can be selected as required.
  • the arrangement order of the touch units 2011 in the second touch electrode 201 is not the same. Therefore, when the finger touches, the voltage generated by the second touch electrodes 201 in the two adjacent repeating units is different. Different, the corresponding detected voltage changes are also different, which improves the accuracy of detection.
  • the surface area of the touch unit 2011 in the display device has only n different values, but the present application is not limited thereto.
  • the surface area of the touch unit 2011 in all the second touch electrodes 201 In the second touch electrodes 21 that are equal in number and different, the surface area of each touch unit 2011 is at least partially unequal.
  • each of the remaining second touch electrodes 201 is also Each includes n touch units 2011, but among the remaining second touch electrodes 201, there is at least one second touch electrode 201, and the second touch electrode 201 has the surface area of at least one touch unit 2011 and other second touch electrodes 201.
  • the surface areas of the touch unit 2011 in the two touch electrodes 201 are different. At this time, in the entire display device, the surface area of the touch unit 2011 has at least n+1 different values.
  • the capacitance change value detected is also larger, correspondingly the detection sensitivity is higher, and the detection is more accurate.
  • the surface area of all touch units 2011 in the entire display device can be set to be different, so that the capacitance change values of different touch points in the entire panel are different, and the detection accuracy is further improved.
  • the surface shape of the touch unit 2011 is at least one of a rectangle, a trapezoid, or a circle.
  • the shape of the touch unit 2011 in the same second touch electrode 201 may be the same or different.
  • the shape of the touch unit 2011 in different second touch electrodes 201 may be the same or different.
  • Designers in the art can set the surface shape of the touch unit 2011 as needed.
  • the present application also provides a terminal, including a display device and a motherboard connected to the display device.
  • the display device includes a display panel and a touch layer.
  • the touch layer is formed on one side of the display panel and includes a plurality of devices that are arranged in the same layer and do not contact each other.
  • a first touch electrode and a plurality of second touch electrodes the first touch electrode is connected to the first electrode line, the second touch electrode is connected to the second electrode line, and the first touch electrode is connected to the second touch electrode Alternately arranged in the first direction, the second touch electrode includes a plurality of touch units arranged in a second direction and connected to each other, the second direction is perpendicular to the first direction, and the surface area of the plurality of touch units in the same second touch electrode Are not equal.
  • the surface areas of the multiple touch units gradually increase along the second direction.
  • the surface areas of the multiple touch units gradually decrease from the middle to the two ends.
  • the number of touch units in all second touch electrodes is equal, and the surface area of each touch unit in different second touch electrodes is correspondingly equal.
  • the arrangement order of the touch units in all the second touch electrodes is the same.
  • the order of arrangement of touch units in at least part of the second touch electrodes is different from the order of arrangement of touch units in other second touch electrodes.
  • the order of the touch units in all the odd-numbered second touch electrodes is the same, and the odd-numbered and even-numbered second touch electrodes are arranged in the same order.
  • the arrangement order of the touch unit in the electrode is different.
  • the touch layer includes a first repeating unit and a second repeating unit. Both the first repeating unit and the second repeating unit include at least two adjacent second touch electrodes. The arrangement order of the touch units of the two touch electrodes is the same, the arrangement order of the touch units of the second touch electrode in the second repeating unit is the same, and the touch units of the second touch electrode in the first repeating unit and the second repeating unit The arrangement order is different, and the first repeating unit and the second repeating unit are alternately arranged along the first direction.
  • the number of touch units in all the second touch electrodes is equal, and in different second touch electrodes, the surface area of each touch unit is at least partially unequal.
  • the surface shape of the touch unit is at least one of a rectangle, a trapezoid, or a circle.
  • the present application provides a display device and a terminal.
  • the display device includes a display panel and a touch layer.
  • the touch layer is formed on one side of the display panel and includes a plurality of first touch electrodes and a plurality of first touch electrodes that are arranged in the same layer and do not contact each other.
  • a second touch electrode, the first touch electrode is connected to the first electrode line, the second touch electrode is connected to the second electrode line, the first touch electrode and the second touch electrode are alternately arranged along the first direction, the first
  • the two touch electrodes include a plurality of touch units arranged in a second direction and connected to each other.
  • the second direction is perpendicular to the first direction, and the surface areas of the plurality of touch units in the same second touch electrode are not equal.
  • the second touch electrode By setting the second touch electrode as a plurality of touch units connected to each other with different surface areas, corresponding to the same first touch electrode, when a finger touches a different position on the second touch electrode, the corresponding capacitance value changes It is also different. Therefore, the capacitance change value of multiple points on the second touch electrode can be measured through a second electrode line, thereby greatly reducing the number of electrode lines, and the number of pins required for subsequent binding with the flexible circuit board The number is also greatly reduced, thereby reducing the width of the flexible circuit board and realizing a narrow frame.

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Abstract

本申请提供一种显示装置和终端，显示装置包括显示面板和触控层，触控层包括同层设置且相互不接触的多个第一触控电极和多个第二触控电极，两者沿第一方向交替排列，第二触控电极包括沿第二方向排列且相互连接的多个触控单元，同一第二触控电极中多个触控单元的表面积均不相等。本申请减小了柔性电路板的宽度。

Description

显示装置和终端 技术领域
本申请涉及显示技术领域，尤其涉及一种显示装置和终端。
 背景技术
在现有的采用单层互电容结构的触控面板中，相互靠近的驱动电极和感应电极形成侧向电容，驱动电极作为输入端输入正弦波信号，感应电极作为检测端，当有手指触摸触控面板表面时，根据检测到的输入信号变化，确定触摸位置的坐标。
输入端和检测端均需要通过电极线与柔性电路板上的引脚连接，由于一个输入端对应多个检测端，每个输入端和每个检测端均需与一根电极线与引脚连接，最终造成需要的引脚过多，柔性电路板的宽度较大，不能满足窄边框的需求。
因此，现有的显示装置存在触控电极的电极线过多的技术问题，需要改进。
 技术问题
本申请提供一种显示装置，以缓解现有的显示装置中触控电极的电极线过多的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种显示装置，包括：
显示面板；
触控层，形成在所述显示面板一侧，包括同层设置且相互不接触的多个第一触控电极和多个第二触控电极，所述第一触控电极与第一电极线连接，所述第二触控电极与第二电极线连接，所述第一触控电极与所述第二触控电极沿第一方向交替排列，所述第二触控电极包括沿第二方向排列且相互连接的多个触控单元，所述第二方向与所述第一方向垂直，同一第二触控电极中多个触控单元的表面积均不相等。
在本申请的显示装置中，同一第二触控电极中，多个触控单元的表面积沿第二方向逐渐增大。
在本申请的显示装置中，同一第二触控电极中，多个触控单元的表面积由中间至两端逐渐减小。
在本申请的显示装置中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中各触控单元的表面积对应相等。
在本申请的显示装置中，所有第二触控电极中触控单元的排列顺序均相同。
在本申请的显示装置中，至少部分第二触控电极中触控单元的排列顺序与其他第二触控电极中触控单元的排列顺序不同。
在本申请的显示装置中，沿第一方向排列的多个第二触控电极，所有排列奇数的第二触控电极中触控单元的排列顺序相同，且排列奇数和排列偶数的第二触控电极中触控单元的排列顺序不同。
在本申请的显示装置中，所述触控层包括第一重复单元和第二重复单元，所述第一重复单元和所述第二重复单元均包括至少两个相邻的第二触控电极，所述第一重复单元中第二触控电极的触控单元排列顺序相同，所述第二重复单元中第二触控电极的触控单元排列顺序相同，且所述第一重复单元和所述第二重复单元中第二触控电极的触控单元排列顺序不同，所述第一重复单元和所述第二重复单元沿第一方向交替排列。
在本申请的显示装置中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中，各触控单元的表面积至少部分对应不相等。
在本申请的显示装置中，所述触控单元的表面形状为矩形、梯形或圆形中的至少一种。
本申请还提供一种终端，包括显示装置和与所述显示装置连接的主板，所述显示装置包括：
显示面板；
触控层，形成在所述显示面板一侧，包括同层设置且相互不接触的多个第一触控电极和多个第二触控电极，所述第一触控电极与第一电极线连接，所述第二触控电极与第二电极线连接，所述第一触控电极与所述第二触控电极沿第一方向交替排列，所述第二触控电极包括沿第二方向排列且相互连接的多个触控单元，所述第二方向与所述第一方向垂直，同一第二触控电极中多个触控单元的表面积均不相等。
在本申请的终端中，同一第二触控电极中，多个触控单元的表面积沿第二方向逐渐增大。
在本申请的终端中，同一第二触控电极中，多个触控单元的表面积由中间至两端逐渐减小。
在本申请的终端中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中各触控单元的表面积对应相等。
在本申请的终端中，所有第二触控电极中触控单元的排列顺序均相同。
在本申请的终端中，至少部分第二触控电极中触控单元的排列顺序与其他第二触控电极中触控单元的排列顺序不同。
在本申请的终端中，沿第一方向排列的多个第二触控电极，所有排列奇数的第二触控电极中触控单元的排列顺序相同，且排列奇数和排列偶数的第二触控电极中触控单元的排列顺序不同。
在本申请的终端中，所述触控层包括第一重复单元和第二重复单元，所述第一重复单元和所述第二重复单元均包括至少两个相邻的第二触控电极，所述第一重复单元中第二触控电极的触控单元排列顺序相同，所述第二重复单元中第二触控电极的触控单元排列顺序相同，且所述第一重复单元和所述第二重复单元中第二触控电极的触控单元排列顺序不同，所述第一重复单元和所述第二重复单元沿第一方向交替排列。
在本申请的终端中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中，各触控单元的表面积至少部分对应不相等。
在本申请的终端中，所述触控单元的表面形状为矩形、梯形或圆形中的至少一种。
 有益效果
本申请提供一种显示装置和终端，显示装置包括显示面板和触控层，所述触控层形成在所述显示面板一侧，包括同层设置且相互不接触的多个第一触控电极和多个第二触控电极，所述第一触控电极与第一电极线连接，所述第二触控电极与第二电极线连接，所述第一触控电极与所述第二触控电极沿第一方向交替排列，所述第二触控电极包括沿第二方向排列且相互连接的多个触控单元，所述第二方向与所述第一方向垂直，同一第二触控电极中多个触控单元的表面积均不相等。通过将第二触控电极设置为相互连接且表面积不同的多个触控单元，对应同一个第一触控电极，当手指触碰到第二触控电极上不同位置时，对应的电容值变化也不同，因此可以通过一根第二电极线测出第二触控电极上多个点的电容变化值，从而大大减少了电极线的数量，后续与柔性电路板绑定时所需引脚的数量也大大减小，进而减小了柔性电路板的宽度，实现了窄边框。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术的显示装置中触控层的结构示意图；
图2为本申请实施例提供的显示装置中触控层的第一种平面结构示意图；
图3为本申请实施例提供的显示装置中触控层的第二种平面结构示意图；
图4为本申请实施例提供的显示装置中触控层的电容等效示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请提供一种显示装置和终端，以缓解现有的显示装置中触控电极的电极线过多的技术问题。
如图2所示，为本申请实施例提供的显示装置中触控层的第一种平面结构示意图。显示装置包括显示面板和触控层200，触控层200形成在显示面板一侧，包括同层设置且相互不接触的多个第一触控电极101和多个第二触控电极201，第一触控电极101与第一电极线102连接，第二触控电极201与第二电极线202连接，第一触控电极101与第二触控电极201沿第一方向X交替排列，第二触控电极201包括沿第二方向Y排列且相互连接的多个触控单元2011，第二方向Y与第一方向X垂直，同一第二触控电极201中多个触控单元2011的表面积均不相等。
在本申请中，显示面板可以为OLED显示面板，也可以为液晶显示面板。当显示面板为OLED显示面板时，包括衬底、驱动电路层、发光层。当显示面板为液晶显示面板时，包括对盒设置的第一基板、第二基板以及填充在第一基板和第二基板之间的液晶层。通常情况下，第一基板为阵列基板，包括层叠设置的第一衬底、驱动电路层、像素电极，第二基板为彩膜基板，包括层叠设置的第二衬底、黑矩阵和色阻层、公共电极。当显示面板为COA型液晶显示面板时，第一基板包括层叠设置的第一衬底、驱动电路层、色阻层、像素电极，第二基板包括层叠设置的第二衬底、黑矩阵、公共电极。本申请对显示面板的种类不做限制。
在显示面板的两侧均形成有偏光片，触控层200形成在显示面板与偏光片之间，即On Cell结构。On Cell结构的显示装置较为轻薄，在显示装置中得到广泛应用。
本申请的触控层200采用单层互电容结构，即第一触控电极101和第二触控电极201均形成在同一层。第一触控电极101为驱动电极TX，第二触控电极201为感应电极RX，第一触控电极101与第二触控电极201均为条状结构，沿第一方向X交替排列。第一触控电极101与第二触控电极201相互之间绝缘即不接触，相邻的第一触控电极101与第二触控电极201之间形成侧向电容。
第一触控电极101与第一电极线102连接，第二触控电极201与第二电极线202连接，在后续显示面板与柔性电路板绑定后，第一电极线102和第二电极线202均和柔性电路板上的引脚301连接，与柔性电路板实现电信号传输。
第二触控电极201为条状结构，每个第二触控电极201包括多个触控单元2011，多个触控单元2011沿第二方向Y排列，且相互连接，每个触控单元2011包括一表面2012，在手指进行触摸时，手指与表面2012接触。在同一个第二触控电极201中，所有触控单元2011的表面积均不相同。
在触控层200正常工作时，第一触控电极101作为输入端输入正弦波信号，与之相邻的第二触控电极201作为检测端，通过两者之间的耦合电容得到相应的交流波形，当未进行触摸动作时，检测到的交流波形保持稳定状态，而当手指触摸到触控层200时，手指与触控单元2011的表面2012接触，手指与触控层200间形成的电容会降低第一触控电极101与第二触控电极201之间的耦合电容，导致检测到的交流信号幅值变弱，从而根据检测结果判断出触摸位置的坐标。
如图4所示，本申请实施例提供的显示装置中触控层的电容等效示意图。从第二触控电极201中选择一条RX1，与RX1两侧相邻的第一触控电极101分别为TX1和TX2，则RX1与左右两侧的TX1和TX2之间均会产生耦合电容C。
RX1中的每个触控单元2011间距相同，因此TX1也相当于多段连接，其中每段与一个触控单元2011对应，每段的电阻均为R。RX1中的各触控单元2011的电阻分别为R1、R2、...、Rn，由于各触控单元2011的表面积不同，电阻也不相等。同理，TX2也相当于多段连接，其中每段与一个触控单元2011对应，每段的电阻均为R。
根据平行板电容器公式C=ε*S/d，由于触控单元2011的表面积不同，手指触碰到不同的触控单元2011时，两者之间产生的电容也不同，对应的正弦信号的变化幅度也不同。因此，首先确定出检测到的信号有变化的第二电极线202，以此确定出触控点的X坐标，再对应此条第二电极线202，根据检测到的电容变化的大小，反推到手指触碰位置，从而确定触控点的Y坐标。
如图1所示，为现有技术的显示装置中触控层的结构示意图。触控层包括驱动电极10和感应电极20，与同一条驱动电极10相邻的感应电极20数量为多个，且感应电极20之间相互不接触。当向一个驱动电极10输入信号时，对应同一X值，如果要检测Y方向上不同点的触摸情况，则需要从每个感应电极20中均引出一条感应电极线21，分别检测对应的感应电极20与驱动电极10之间耦合电容的变化，才能确定正确的触摸点坐标。
基于此，对应每个驱动电极10，需要引出一条驱动电极线10，对应每个感应电极20，也需要引出一条感应电极线20，而驱动电极线10与感应电极线20又需要与柔性电路板上的引脚30连接。对应分辨率为（a，b）的显示装置，即有a列驱动电极10，b行感应电极20，则需要的引脚总数为a*（1+b）个，当显示面板尺寸增大后，引脚数量过多会导致柔性电路板的宽度无法对应，限制了单层互电容结构的触控层的应用范围。
而本申请中，将第二触控电极201设置为多个触控单元2011连接的结构，相当于第二触控电极201也为一条，每条第二触控电极201设置一根第二电极线202。此时，对应分辨率为（a，b）的显示装置，则需要的引脚总数为2a个。在显示面板第二方向上的尺寸增大时，引脚数量也不会增加，从而对于大尺寸面板的适用性增强。
本申请通过将第二触控电极201设置为相互连接且表面积不同的多个触控单元2011，对应同一个第一触控电极101，当手指触碰到第二触控电极201上不同位置时，对应的电容值变化也不同，因此可以通过一根第二电极线202测出第二触控电极201上多个点的电容变化值，从而大大减少了电极线的数量，后续与柔性电路板绑定时所需引脚301的数量也大大减小，进而减小了柔性电路板的宽度，实现了窄边框。
在一种实施例中，所有第二触控电极201中触控单元2011的数量相等，且不同的第二触控电极201中各触控单元2011的表面积对应相等。
同一第二触控电极201中各触控单元2011的表面积不同，假设其中一个第二触控电极201有n个触控单元2011，每个触控单元2011的表面积分别以S1、S2、...、Sn表示，则其余每个第二触控电极201中也均包括n个触控单元2011，且n个触控单元2011的表面积也分别为S1、S2、...、Sn，即整个显示装置中，触控单元2011的表面积只有n个不同的数值。这样在制备触控层200时，不需设置太多的表面积值，制备较为简单。
在此情况下，同一第二触控电极201中各触控单元2011的排列顺序可以有多种方式。
在一种实施例中，如图2所示，同一第二触控电极201中，多个触控单元2011的表面积沿第二方向Y逐渐增大。第二方向Y为图中的上下方向，多个触控单元2011的表面积可以沿第二方向Y逐渐增大，也可以逐渐减小。通过将同一第二触控电极201中多个触控单元2011的表面积按大小顺序排列，触控时电容变化幅度也呈现出规律增大或减小，检测时更为简便易操作。
在一种实施例中，如图3所示，同一第二触控电极201中，多个触控单元2011的表面积由中间至两端逐渐减小。通常情况下，使用者对显示面板中部的触碰频率较高，对两端的触碰频率较低，因此中部对触控的灵敏度较高。根据平行板电容器公式C=ε*S/d，中间触控单元2011的表面积较大，手指触控时产生的电容也越大，即电容的变化值较大，因此更容易被检测出，触控的灵敏度较高。
当然，同一第二触控电极201中，多个触控单元2011的排列顺序不限于此，还可以有其他方式，本领域的设计人员可根据需要合理设置多个触控单元2011的排列顺序。
在同一第二触控电极201中，各触控单元2011的表面积均不同。而对应整个显示装置，设置有多个第二触控电极201，各第二触控电极201中触控单元2011的排列顺序可以相同，也可以不同。
在一种实施例中，如图2所示，所有第二触控电极201中触控单元2011的排列顺序均相同。忽略第一触控电极101所在的列数，仅以第二触控电极201所在的列数计算，图2中第一列第二触控电极201中，多个触控单元2011的表面积沿第二方向Y逐渐增大，其他各列的第二触控电极201中触控单元2011的排列顺序均与第一列第二触控电极201中的排列顺序相同，即也都是按表面积沿第二方向Y逐渐增大的顺序排列。
当所有的第二触控电极201中触控单元2011的排列顺序均相同时，触控层200制作较为简单易行，对应的电容变化值数据量较少，易于管理。
在一种实施例中，至少部分第二触控电极201中触控单元2011的排列顺序与其他第二触控电极201中触控单元2011的排列顺序不同。
如图3所示，沿第一方向X排列的多个第二触控电极201，所有排列奇数的第二触控电极201中触控单元2011的排列顺序相同，且排列奇数和排列偶数的第二触控电极201中触控单元2011的排列顺序不同。
忽略第一触控电极101所在的列数，仅以第二触控电极201所在的列数计算，第一列、第三列、第五列等排列为奇数的第二触控电极201中，多个触控单元2011的表面积沿第二方向Y逐渐增大，而其他列中的第二触控电极201中，各触控单元2011的表面积可以都沿第二方向Y逐渐减小，也可以都由中间至两端逐渐减小，或者一部分沿第二方向Y逐渐减小，另一部分由中间至两端逐渐减小。
同理，也可以反过来设置，沿第一方向X排列的多个第二触控电极201，所有排列偶数的第二触控电极201中触控单元2011的排列顺序相同，且排列奇数和排列偶数的第二触控电极201中触控单元2011的排列顺序不同。
忽略第一触控电极101所在的列数，仅以第二触控电极201所在的列数计算，第二列、第四列、第六列等排列为偶数的第二触控电极201中，多个触控单元2011的表面积沿第二方向Y逐渐增大，而其他列中的第二触控电极201中，各触控单元2011的表面积可以都沿第二方向Y逐渐减小，也可以都由中间至两端逐渐减小，或者一部分沿第二方向Y逐渐减小，另一部分由中间至两端逐渐减小。
在上述实施例中，相邻两个第二触控电极201中触控单元2011的排列顺序不相同，因此手指在触碰时，与相邻两个第二触控电极201产生的电压不同，对应检测到的电压变化也不同，提高了检测的准确性。
在一种实施例中，触控层200包括第一重复单元和第二重复单元，第一重复单元和第二重复单元均包括至少两个相邻的第二触控电极201，第一重复单元中第二触控电极201的触控单元2011排列顺序相同，第二重复单元中第二触控电极201的触控单元2011排列顺序相同，且第一重复单元和第二重复单元中第二触控电极21的触控单元2011排列顺序不同，第一重复单元和第二重复单元沿第一方向X交替排列。
在本实施例中，将至少两个相邻的第二触控电极201作为第一重复单元，至少两个相邻的第二触控电极201作为第二重复单元，同一类型的重复单元中，触控单元2011排列顺序相同，第一重复单元和第二重复单元沿第一方向X交替排列。第一重复单元和第二重复单元中包括的第二触控电极201数量可根据需要选择。
相邻两个重复单元中，第二触控电极201中触控单元2011的排列顺序不相同，因此手指在触碰时，与相邻两个重复单元中的第二触控电极201产生的电压不同，对应检测到的电压变化也不同，提高了检测的准确性。
上述所有实施例中，显示装置中触控单元2011的表面积仅有n个不同的值，但本申请不限于此，在一种实施例中，所有第二触控电极201中触控单元2011的数量相等，且不同的第二触控电极21中，各触控单元2011的表面积至少部分对应不相等。
假设其中一个第二触控电极201有n个触控单元2011，每个触控单元2011的表面积分别以S1、S2、...、Sn表示，则其余每个第二触控电极201中也均包括n个触控单元2011，但其余的第二触控电极201中，至少存在一个第二触控电极201，该第二触控电极201中有至少一个触控单元2011的表面积与其他第二触控电极201中触控单元2011的表面积均不相同。此时整个显示装置中，触控单元2011的表面积至少有n+1个不同的数值。
当触控单元2011的表面积数值越多时，检测到的电容变化值也越多，相应地检测灵敏度也越高，检测越准确。可以将整个显示装置中的所有触控单元2011的表面积均设置为不同，则整个面板中不同触控点的电容变化值均不相同，检测准确性进一步提高。
在本申请中，触控单元2011的表面形状为矩形、梯形或圆形中的至少一种。同一个第二触控电极201中触控单元2011的形状可以相同，也可以不同。不同第二触控电极201中触控单元2011的形状可以相同，也可以不同。本领域的设计人员可根据需要设置触控单元2011的表面形状。
本申请还提供一种终端，包括显示装置和与显示装置连接的主板，显示装置包括显示面板和触控层，触控层形成在显示面板一侧，包括同层设置且相互不接触的多个第一触控电极和多个第二触控电极，第一触控电极与第一电极线连接，第二触控电极与第二电极线连接，第一触控电极与第二触控电极沿第一方向交替排列，第二触控电极包括沿第二方向排列且相互连接的多个触控单元，第二方向与第一方向垂直，同一第二触控电极中多个触控单元的表面积均不相等。
在一种实施例中，同一第二触控电极中，多个触控单元的表面积沿第二方向逐渐增大。
在一种实施例中，同一第二触控电极中，多个触控单元的表面积由中间至两端逐渐减小。
在一种实施例中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中各触控单元的表面积对应相等。
在一种实施例中，所有第二触控电极中触控单元的排列顺序均相同。
在一种实施例中，至少部分第二触控电极中触控单元的排列顺序与其他第二触控电极中触控单元的排列顺序不同。
在一种实施例中，沿第一方向排列的多个第二触控电极，所有排列奇数的第二触控电极中触控单元的排列顺序相同，且排列奇数和排列偶数的第二触控电极中触控单元的排列顺序不同。
在一种实施例中，触控层包括第一重复单元和第二重复单元，第一重复单元和第二重复单元均包括至少两个相邻的第二触控电极，第一重复单元中第二触控电极的触控单元排列顺序相同，第二重复单元中第二触控电极的触控单元排列顺序相同，且第一重复单元和第二重复单元中第二触控电极的触控单元排列顺序不同，第一重复单元和第二重复单元沿第一方向交替排列。
在一种实施例中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中，各触控单元的表面积至少部分对应不相等。
在一种实施例中，触控单元的表面形状为矩形、梯形或圆形中的至少一种。
根据上述实施例可知：
本申请提供一种显示装置和终端，显示装置包括显示面板和触控层，触控层形成在所述显示面板一侧，包括同层设置且相互不接触的多个第一触控电极和多个第二触控电极，第一触控电极与第一电极线连接，第二触控电极与第二电极线连接，第一触控电极与第二触控电极沿第一方向交替排列，第二触控电极包括沿第二方向排列且相互连接的多个触控单元，第二方向与第一方向垂直，同一第二触控电极中多个触控单元的表面积均不相等。通过将第二触控电极设置为相互连接且表面积不同的多个触控单元，对应同一个第一触控电极，当手指触碰到第二触控电极上不同位置时，对应的电容值变化也不同，因此可以通过一根第二电极线测出第二触控电极上多个点的电容变化值，从而大大减少了电极线的数量，后续与柔性电路板绑定时所需引脚的数量也大大减小，进而减小了柔性电路板的宽度，实现了窄边框。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种显示装置，其中，包括：
    显示面板；
    触控层，形成在所述显示面板一侧，包括同层设置且相互不接触的多个第一触控电极和多个第二触控电极，所述第一触控电极与第一电极线连接，所述第二触控电极与第二电极线连接，所述第一触控电极与所述第二触控电极沿第一方向交替排列，所述第二触控电极包括沿第二方向排列且相互连接的多个触控单元，所述第二方向与所述第一方向垂直，同一第二触控电极中多个触控单元的表面积均不相等。
  2. 如权利要求1所述的显示装置，其中，同一第二触控电极中，多个触控单元的表面积沿第二方向逐渐增大。
  3. 如权利要求1所述的显示装置，其中，同一第二触控电极中，多个触控单元的表面积由中间至两端逐渐减小。
  4. 如权利要求1所述的显示装置，其中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中各触控单元的表面积对应相等。
  5. 如权利要求4所述的显示装置，其中，所有第二触控电极中触控单元的排列顺序均相同。
  6. 如权利要求4所述的显示装置，其中，至少部分第二触控电极中触控单元的排列顺序与其他第二触控电极中触控单元的排列顺序不同。
  7. 如权利要求6所述的显示装置，其中，沿第一方向排列的多个第二触控电极，所有排列奇数的第二触控电极中触控单元的排列顺序相同，且排列奇数和排列偶数的第二触控电极中触控单元的排列顺序不同。
  8. 如权利要求6所述的显示装置，其中，所述触控层包括第一重复单元和第二重复单元，所述第一重复单元和所述第二重复单元均包括至少两个相邻的第二触控电极，所述第一重复单元中第二触控电极的触控单元排列顺序相同，所述第二重复单元中第二触控电极的触控单元排列顺序相同，且所述第一重复单元和所述第二重复单元中第二触控电极的触控单元排列顺序不同，所述第一重复单元和所述第二重复单元沿第一方向交替排列。
  9. 如权利要求1所述的显示装置，其中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中，各触控单元的表面积至少部分对应不相等。
  10. 如权利要求1所述的显示装置，其中，所述触控单元的表面形状为矩形、梯形或圆形中的至少一种。
  11. 一种终端，其中，包括显示装置和与所述显示装置连接的主板，所述显示装置包括：
    显示面板；
    触控层，形成在所述显示面板一侧，包括同层设置且相互不接触的多个第一触控电极和多个第二触控电极，所述第一触控电极与第一电极线连接，所述第二触控电极与第二电极线连接，所述第一触控电极与所述第二触控电极沿第一方向交替排列，所述第二触控电极包括沿第二方向排列且相互连接的多个触控单元，所述第二方向与所述第一方向垂直，同一第二触控电极中多个触控单元的表面积均不相等。
  12. 如权利要求11所述的终端，其中，同一第二触控电极中，多个触控单元的表面积沿第二方向逐渐增大。
  13. 如权利要求11所述的终端，其中，同一第二触控电极中，多个触控单元的表面积由中间至两端逐渐减小。
  14. 如权利要求11所述的终端，其中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中各触控单元的表面积对应相等。
  15. 如权利要求14所述的终端，其中，所有第二触控电极中触控单元的排列顺序均相同。
  16. 如权利要求14所述的终端，其中，至少部分第二触控电极中触控单元的排列顺序与其他第二触控电极中触控单元的排列顺序不同。
  17. 如权利要求16所述的终端，其中，沿第一方向排列的多个第二触控电极，所有排列奇数的第二触控电极中触控单元的排列顺序相同，且排列奇数和排列偶数的第二触控电极中触控单元的排列顺序不同。
  18. 如权利要求16所述的终端，其中，所述触控层包括第一重复单元和第二重复单元，所述第一重复单元和所述第二重复单元均包括至少两个相邻的第二触控电极，所述第一重复单元中第二触控电极的触控单元排列顺序相同，所述第二重复单元中第二触控电极的触控单元排列顺序相同，且所述第一重复单元和所述第二重复单元中第二触控电极的触控单元排列顺序不同，所述第一重复单元和所述第二重复单元沿第一方向交替排列。
  19. 如权利要求11所述的终端，其中，所有第二触控电极中触控单元的数量相等，且不同的第二触控电极中，各触控单元的表面积至少部分对应不相等。
  20. 如权利要求11所述的终端，其中，所述触控单元的表面形状为矩形、梯形或圆形中的至少一种。
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