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WO2023039869A1 - 显示面板和显示装置 - Google Patents

显示面板和显示装置 Download PDF

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Publication number
WO2023039869A1
WO2023039869A1 PCT/CN2021/119260 CN2021119260W WO2023039869A1 WO 2023039869 A1 WO2023039869 A1 WO 2023039869A1 CN 2021119260 W CN2021119260 W CN 2021119260W WO 2023039869 A1 WO2023039869 A1 WO 2023039869A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
signal line
common
electrode
display panel
Prior art date
Application number
PCT/CN2021/119260
Other languages
English (en)
French (fr)
Inventor
巩厚富
马亚龙
靳增建
Original Assignee
武汉华星光电技术有限公司
武汉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
Publication date
Application filed by 武汉华星光电技术有限公司, 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US17/614,329 priority Critical patent/US20240028146A1/en
Publication of WO2023039869A1 publication Critical patent/WO2023039869A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • 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
    • 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
    • G06F3/0416—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
    • 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
    • G06F3/044—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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals

Definitions

  • the present application relates to the field of display technology, in particular to a display panel and a display device.
  • OLED Organic Light-Emitting Diode
  • OLED Organic Light-Emitting Diode
  • DOT Direct On Cell Touch, directly making the touch layer on the panel
  • the OLED display device designed by the existing DOT will cause a large parasitic capacitance between the driving electrode, the receiving electrode and the cathode, resulting in a large touch drive load and poor touch effect, and the existing DOT design uses double-layer metal, which affects The transmittance and the display effect are poor, and the design of the driving electrode and the receiving electrode leads to a large thickness of the display panel and a relatively complicated manufacturing process.
  • the existing DOT-designed OLED display device has the technical problem of poor display effect and touch effect caused by large parasitic capacitance between the touch electrode and the cathode.
  • the embodiments of the present application provide a display panel and a display device, which are used to alleviate the poor display effect and touch effect caused by the large parasitic capacitance between the touch electrode and the cathode in the existing DOT-designed OLED display device. question.
  • An embodiment of the present application provides a display panel, which includes:
  • a driving circuit layer disposed on one side of the substrate
  • a light emitting layer disposed on a side of the driving circuit layer away from the substrate;
  • a common electrode layer disposed on a side of the light-emitting layer away from the driving circuit layer;
  • a touch electrode disposed on a side of the common electrode layer away from the light-emitting layer
  • the common electrode layer includes a multiplexing electrode
  • the projection of the touch electrode on the substrate is perpendicular to the projection of the multiplexing electrode on the substrate
  • the display panel also includes a power management chip
  • the multiplexing electrodes are connected to the power management chip, and the multiplexing electrodes are used to transmit common signals and touch signals.
  • the display panel further includes a first touch signal line and a first common signal line, one end of the multiplexing electrode is connected to the first touch signal line, and the other end of the multiplexing electrode is connected to the first touch signal line.
  • the first common signal line is connected, and the power management chip is connected to the first common signal line.
  • the display panel further includes a diode, the anode of the diode is connected to the multiplexing electrode through the first common signal line, and the cathode of the diode is connected to the multiplexing electrode through the first common signal line.
  • the display panel further includes a touch driving chip, and the touch driving chip is connected to the first touch signal line.
  • the first touch signal line is connected to the power management chip, and the power management chip is used to output touch signals and common signals.
  • the common electrode layer further includes a common electrode connected to the power management chip, and the common electrode is used for transmitting common signals.
  • the display panel further includes a second touch signal line and a second common signal line, one end of the second touch signal line is connected to the multiplexing electrode, and the second touch signal line The other end is connected to the power management chip, one end of the second common signal line is connected to the common electrode, and the other end of the second common signal line is connected to the power management chip.
  • the display panel further includes a third touch signal line, a third common signal line and a fourth common signal line
  • the third touch signal line is connected to one end of the multiplexing electrode, so One end of the third common signal line is connected to the other end of the multiplexing electrode, the other end of the third common signal line is connected to the power management chip, and the third touch signal line is connected to one end of the common electrode.
  • One end of the fourth common signal line is connected to the other end of the common electrode, and the other end of the fourth common signal line is connected to the power management chip.
  • the display panel further includes a touch driving chip, and the touch driving chip is connected to the third touch signal line.
  • the display panel further includes an encapsulation layer and a buffer layer, the encapsulation layer is disposed on the side of the common electrode layer away from the light-emitting layer, and the buffer layer is disposed between the encapsulation layer and the light-emitting layer. between the touch electrodes.
  • the display panel further includes an insulating layer and an encapsulation layer, the insulating layer is disposed on the side of the common electrode layer away from the light-emitting layer, and the encapsulation layer is disposed on the side away from the touch electrodes one side of the insulating layer.
  • an embodiment of the present application provides a display device, the display device includes a display panel and electronic components, and the display panel includes:
  • a driving circuit layer disposed on one side of the substrate
  • a light emitting layer disposed on a side of the driving circuit layer away from the substrate;
  • a common electrode layer disposed on a side of the light-emitting layer away from the driving circuit layer;
  • a touch electrode disposed on a side of the common electrode layer away from the light-emitting layer
  • the common electrode layer includes a multiplexing electrode
  • the projection of the touch electrode on the substrate coincides with the projection of the multiplexing electrode on the substrate
  • the display panel also includes a power management chip
  • the multiplexing electrodes are connected to the power management chip, and the multiplexing electrodes are used to transmit common signals and touch signals.
  • the display panel further includes a first touch signal line and a first common signal line, one end of the multiplexing electrode is connected to the first touch signal line, and the other end of the multiplexing electrode is connected to the first touch signal line.
  • the first common signal line is connected, and the power management chip is connected to the first common signal line.
  • the display panel further includes a diode, the anode of the diode is connected to the multiplexing electrode through the first common signal line, and the cathode of the diode is connected to the multiplexing electrode through the first common signal line.
  • the display panel further includes a touch driving chip, and the touch driving chip is connected to the first touch signal line.
  • the first touch signal line is connected to the power management chip, and the power management chip is used to output touch signals and common signals.
  • the common electrode layer further includes a common electrode connected to the power management chip, and the common electrode is used for transmitting common signals.
  • the display panel further includes a second touch signal line and a second common signal line, one end of the second touch signal line is connected to the multiplexing electrode, and the second touch signal line The other end is connected to the power management chip, one end of the second common signal line is connected to the common electrode, and the other end of the second common signal line is connected to the power management chip.
  • the display panel further includes a third touch signal line, a third common signal line and a fourth common signal line
  • the third touch signal line is connected to one end of the multiplexing electrode, so One end of the third common signal line is connected to the other end of the multiplexing electrode, the other end of the third common signal line is connected to the power management chip, and the third touch signal line is connected to one end of the common electrode.
  • One end of the fourth common signal line is connected to the other end of the common electrode, and the other end of the fourth common signal line is connected to the power management chip.
  • the display panel further includes a touch driving chip, and the touch driving chip is connected to the third touch signal line.
  • Embodiments of the present application provide a display panel and a display device;
  • the display panel includes a substrate, a driving circuit layer, a light emitting layer, a common electrode layer, and a touch electrode
  • the driving circuit layer is disposed on one side of the substrate
  • the light emitting layer is disposed on the driving
  • the side of the circuit layer away from the substrate, the common electrode layer is arranged on the side of the light-emitting layer away from the driving circuit layer
  • the touch electrode is arranged on the side of the common electrode layer away from the light-emitting layer, wherein the common electrode layer includes multiplexing electrodes, and the touch
  • the projection of the control electrode on the substrate is perpendicular to the projection of the multiplexing electrode on the substrate.
  • the display panel also includes a power management chip, the multiplexing electrode is connected to the power management chip, and the multiplexing electrode is used to transmit common signals and touch signals.
  • multiplexing electrodes are formed on the common electrode layer, and the multiplexing electrodes can transmit common signals and touch signals, so as to realize the functions of the common electrodes and the touch control function, without forming an additional layer of touch metal layer, which reduces the cost of the display panel.
  • Thickness improve the light transmittance, without the need to prepare the touch electrode and correspondingly reduce the insulating layer in the preparation of the touch layer, further reduce the thickness of the display panel, reduce the difficulty and complexity of the process, and at the same time, because the common electrode is used as the touch electrode, there will be no parasitic capacitance between the touch electrode and the common electrode, eliminate the parasitic capacitance between the touch electrode and the common electrode, improve the display effect and touch effect, and connect the power management chip and the multiplexing electrode , can realize the signal input to the multiplexing electrode, and realize the function of the multiplexing electrode.
  • FIG. 1 is a schematic diagram of a conventional OLED display device.
  • FIG. 2 is a first schematic diagram of a display panel provided by an embodiment of the present application.
  • FIG. 3 is a second schematic diagram of a display panel provided by an embodiment of the present application.
  • FIG. 4 is a timing diagram of signals output by the touch driver chip of the display panel provided by the embodiment of the present application.
  • FIG. 5 is a third schematic diagram of a display panel provided by an embodiment of the present application.
  • FIG. 6 is a fourth schematic diagram of a display panel provided by an embodiment of the present application.
  • FIG. 7 is a fifth schematic diagram of a display panel provided by an embodiment of the present application.
  • FIG. 8 is a sixth schematic diagram of a display panel provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a display device provided by an embodiment of the present application.
  • the OLED display device of the existing DOT design includes a substrate 11, an array layer 12, a light emitting layer 13, an encapsulation layer 14, and a buffer layer 15, and the touch layer of the DOT design includes a driving electrode layer 16, a first insulating layer 17, a receiving electrode layer 18, and a second insulating layer 19.
  • the touch layer is disposed on the buffer layer 15, and the receiving electrode layer 18 includes a receiving electrode 181 and a connection line 182 connected to the receiving electrode 181.
  • the corresponding driving electrode layer 16 Including driving electrodes and connecting wires (not shown in FIG. 1 ) connecting the driving electrodes.
  • the touch layer designed by DOT includes two layers of metal layers and two layers of insulating layers, resulting in a thicker OLED display panel and a more complicated manufacturing process.
  • the formation of parasitic capacitance between the electrodes leads to a large voltage drop of the OLED display device, resulting in inconsistent display brightness of each pixel of the OLED display device, which affects the display effect. touch effect. Therefore, the existing DOT-designed OLED display device has the technical problems of relatively large thickness and large parasitic capacitance between the touch electrode and the cathode, resulting in poor display effect and poor touch effect.
  • embodiments of the present application provide a display panel and a display device for alleviating the above technical problems.
  • the embodiment of the present application provides a display panel
  • the display panel includes:
  • a driving circuit layer 22 disposed on one side of the substrate 21;
  • a light emitting layer 23 disposed on a side of the driving circuit layer 22 away from the substrate 21;
  • the touch electrode 271 is disposed on the side of the common electrode layer 24 away from the light emitting layer 23;
  • the common electrode layer 24 includes a multiplexing electrode 241, the projection of the touch electrode 271 on the substrate 21 is perpendicular to the projection of the multiplexing electrode 241 on the substrate 21, and the display
  • the panel also includes a power management chip 32 , the multiplexing electrodes 241 are connected to the power management chip 32 , and the multiplexing electrodes 241 are used for transmitting common signals and touch signals.
  • An embodiment of the present application provides a display panel.
  • the display panel forms a multiplexing electrode on the common electrode layer, and the multiplexing electrode can transmit common signals and touch signals, so as to realize the function of the common electrode and the touch control function without additionally forming a
  • the layer touch metal layer reduces the thickness of the display panel and improves the light transmittance without the need to prepare touch electrodes and correspondingly reduces the insulating layer in the touch layer, which further reduces the thickness of the display panel and reduces the difficulty and complexity of the process.
  • the common electrode is used as the touch electrode, there will be no parasitic capacitance between the touch electrode and the common electrode, eliminating the parasitic capacitance between the touch electrode and the common electrode, and improving the display effect and the touch effect.
  • the power management chip to connect with the multiplexing electrode, the signal input to the multiplexing electrode can be realized, and the function of the multiplexing electrode can be realized.
  • the touch signal output by the multiplexed electrodes is used as the driving signal as an example, that is, the touch electrodes are used as the receiving electrodes as an example.
  • the display panel further includes a first touch signal line 242 and a first common signal line 243, one end of the multiplexing electrode 241 is connected to the first touch signal line 242, and the other end of the multiplexing electrode 241 is connected to the first common signal line 243.
  • the first touch signal line and the first common signal line can provide and transmit the touch signal and the common signal
  • the first common signal line can transmit the common signal , so that the common electrode layer realizes the function of the common electrode and the function of the touch electrode.
  • the display panel further includes a diode 33, the anode of the diode 33 is connected to the multiplexing electrode 241 through the first common signal line 243, and the diode 33
  • the negative electrode of the battery is connected to the power management chip 32 through the first common signal line 243 .
  • the display panel further includes a touch driving chip 31 , and the touch driving chip 31 is connected to the first touch signal line 242 .
  • the touch driver chip By connecting the touch driver chip with the first touch signal line, the first touch signal can transmit the common signal and the touch signal to the common electrode, and the power management chip outputs the common signal, so that the common electrode layer can realize the common electrode.
  • the touch driver chip refers to TDDI (Touch and Display Diver Integration, touch and display driver integration), that is, the touch chip and the driver chip are combined into one, which can output the touch signal required by touch.
  • the receiving signal of the receiving electrode is input, and the driving signal required for display is output, so as to realize the functions of the touch chip and the driving chip.
  • the abscissa is the time t, and the ordinate is the voltage V.
  • the touch signal is output in the form of a square wave, wherein the touch signal includes touch
  • the touch voltage V2 is smaller than the common voltage V1
  • the power management chip outputs the common voltage V1
  • a diode is set on the first common signal line, which avoids the signal feedback output by the touch driver chip. Irrigated to the common signal terminal, and by outputting the above-mentioned signal, the function of the common electrode and the function of the driving electrode are realized, and there is no need to separately set the driving electrode.
  • the touch signal includes the touch voltage V2 in the form of a square wave and the common electrode V1 as an example.
  • V1 and V2 are output in the form of square waves, the display effect can still be achieved. There is voltage, so the display panel can continue to realize the display effect.
  • V1 is continuously output as a common signal in the non-touch stage, and a square wave is output in the touch stage to realize touch and display functions.
  • the public signal is in the form of a square wave. V1 and V2.
  • the common electrode layer further includes a common electrode 341 connected to the power management chip 32 , and the common electrode 341 is used for transmitting common signals.
  • the multiplexed electrode transmits the touch signal when the touch is performed corresponding to the touch area, and continuously transmits the common signal when it is not touched, so as to realize the function of the common electrode and touch function, and in the non-touch area, the common electrode continuously outputs a common signal to display on the display panel.
  • the display panel further includes a second touch signal line 245 and a second common signal line 244, one end of the second touch signal line 245 is connected to the multiplexing electrode 241, the other end of the second touch signal line 245 is connected to the power management chip 32, one end of the second common signal line 244 is connected to the common electrode 341, and the other end of the second common signal line 244 It is connected with the power management chip 32 .
  • the second touch signal line transmits the touch signal when the touch is touched and the common signal when the non-touch is used by adopting the setting method of the multiplexed electrode and the common electrode.
  • the second common signal line continuously transmits the common signal, so that the common electrode layer realizes the function of the common electrode and the function of the driving electrode, without additionally setting the driving circuit layer, reducing the thickness of the display panel, and eliminating the gap between the driving electrode and the common electrode.
  • the driver chip is connected to reduce the size of the touch driver chip, reduce the width of the frame of the display panel, and realize a narrow frame.
  • the timing diagram of the signals output on the second touch signal line is shown in FIG. 4 , the touch voltage V2 and the common voltage V1 are output in the form of square waves, and the touch voltage V2 and the common voltage V1 are output during touch control. Realize the touch function and display function, and output the common signal V1 to realize the display function when non-touch.
  • the display panel further includes a third touch signal line 246, a third common signal line 243b and a fourth common signal line 243a, and the third touch signal line 246
  • the third touch signal line 246 One end of the multiplexing electrode 241 is connected, one end of the third common signal line 243b is connected to the other end of the multiplexing electrode 241, and the other end of the third common signal line 243b is connected to the power management chip 32
  • the third touch signal line 246 is connected to one end of the common electrode 341
  • one end of the fourth common signal line 243a is connected to the other end of the common electrode 341
  • the other end of the fourth common signal line 243a It is connected with the power management chip 32 .
  • the third touch signal line By connecting the third touch signal line to the multiplexing electrode and one end of the common electrode, so that the third common signal line is connected to the other end of the multiplexing electrode, and the fourth common signal line is connected to the other end of the common electrode, then the touch In the control area, the third touch signal line outputs touch signals and common signals to realize the touch function and display function, and outputs the common signal to realize the function of the common electrode, while the third common signal line is set to a high-impedance state at this time, It is equivalent to an open circuit to prevent the touch signal from feeding back to the power management chip, and the fourth common signal line corresponds to the non-touch area, and continuously outputs the common signal to realize the display function.
  • the display panel further includes a touch driving chip 31 , and the touch driving chip 31 is connected to the third touch signal line 246 .
  • the touch signal and common signal are output through the touch driver chip, so that the common electrode layer realizes the touch function, and the common signal is output through the power management chip, so that the common signal can be continuously output in the non-touch stage in the touch area, and the non-touch
  • the control area can continuously output the common signal, so as to realize the power signal output function of the common electrode layer.
  • the third touch signal line outputs the signal as shown in Figure 4, and inputs the touch voltage V2 and the common voltage V1 in the form of a square wave, and outputs the touch voltage V2 and the common voltage V1 during touch control to realize touch control.
  • the common voltage V1 is continuously output as a common signal when it is not touched.
  • the fourth common signal line is set to High-Z (high-impedance) state to prevent the signal output by the third touch signal line from feeding back to the power management chip, and in the non-touch state, the common signal is output through the fourth common signal line, so that the display panel can display normally; while for the non-touch area, the third common signal line continuously outputs the common signal, so that the display panel can display normally.
  • the third common signal line and the fourth common signal line correspond to the touch area and the non-touch area.
  • the areas corresponding to the third common signal line and the fourth common signal line can be swapped, that is, the third common signal line corresponds to the non-touch area, the fourth common signal line corresponds to the touch area, and the corresponding third touch area
  • the signal output by the control signal line also changes.
  • the touch area and non-touch area in the embodiment of the present application represent the area when the touch is touched, and the area is not limited to be the touch area.
  • the corresponding non-touch area represents a certain area. A period of time is a non-touch area, and when a touch signal is received, this area is a touch area.
  • the display panel further includes an encapsulation layer 25 and a buffer layer 26, the encapsulation layer 25 is disposed on the side of the common electrode layer 24 away from the light emitting layer 23, The buffer layer 26 is disposed between the encapsulation layer 25 and the touch electrodes 271 .
  • the touch signal is transmitted to the common electrode layer to realize the function of the driving electrode. There is no need to set the driving electrode.
  • the touch electrode can be set on the buffer layer, and the touch electrode and the multiplexing electrode can be vertically set, so that the display panel can be realized. touch function.
  • the display panel further includes an insulating layer 28 and an encapsulation layer 25, the insulating layer 28 is disposed on the side of the common electrode layer 24 away from the light emitting layer 23, The encapsulation layer 25 is disposed on a side of the touch electrode 271 away from the insulating layer 28 .
  • the touch signal is the signal of the driving electrode
  • the receiving electrode is also arranged in the encapsulation layer to protect the receiving electrode and the common electrode
  • the insulating layer is arranged between the receiving electrode and the common electrode, which can avoid the receiving electrode and the common electrode. A short circuit occurs between them, resulting in signal crosstalk, and the receiving electrode is vertically arranged with the common electrode to realize the touch function of the display panel.
  • the touch electrodes and the multiplexing electrodes are stacked, but in reality, the touch electrodes and the multiplexing electrodes are located on different layers, as shown in FIG. 2 .
  • the display panel further includes a touch electrode layer 27, and the touch electrode layer 27 includes a touch electrode 271 and a receiving signal line 272, and the receiving signal One end of the line 272 is connected to the touch electrode 271, the other end of the receiving signal line is connected to the touch driving chip 31, and the receiving electrode is connected to the touch driving chip through the receiving signal line, so that the receiving electrode senses the touch
  • the receiving electrode transmits the receiving signal from the receiving signal line to the touch driver chip, so as to detect the touch point and realize the touch function.
  • the touch electrodes are used as the receiving electrodes, and when the receiving electrodes are arranged on the side of the encapsulation layer away from the light-emitting layer, the arrangement of the common electrode layer is described in detail.
  • the receiving electrodes When it is arranged between the encapsulation layer and the light-emitting layer, the arrangement method of the corresponding common electrode layer can also adopt the arrangement method of multiplexing electrodes, common electrodes, common signal lines, and touch signal lines described in any of the above-mentioned embodiments,
  • the connection mode of the common signal line, the common electrode, the multiplexing electrode, and the touch signal line can also adopt the connection mode described in any of the above-mentioned embodiments, and the common signal line, the touch signal line and the touch driver chip and the power supply
  • the management chip may also adopt any of the connection methods described in the above embodiments, which will not be repeated here.
  • the above embodiments are described in detail by taking the touch signal as the signal of the driving electrodes as an example.
  • the arrangement direction of the driving electrodes is the same as that of the common electrodes in the prior art, and the driving electrodes are arranged on the longer side of the display panel, the overlapping area between the driving electrodes and the common electrodes is larger than that of the receiving electrodes and the common electrodes.
  • the overlapping area of the electrodes that is, the parasitic capacitance between the driving electrode and the common electrode, is larger than the parasitic capacitance of the receiving electrode and the common electrode. Therefore, in the above-mentioned embodiment, the signals of the driving electrodes transmitted by the multiplexed electrodes are described in detail. , eliminating the parasitic capacitance between the driving electrode and the common electrode, thereby improving the display effect and touch effect of the display panel.
  • the touch signal is not limited to be the signal of the driving electrode, and the touch signal may also be the signal of the receiving electrode.
  • the touch electrodes are driving electrodes.
  • the connection mode of the receiving signal line corresponding to the receiving electrode can be the same as that of the driving signal corresponding to the driving electrode in the above embodiment when the touch signal is the signal of the driving electrode.
  • the connection mode of the wires is corresponding, so that the common electrodes transmit and receive signals when the touch is touched, and the common electrodes transmit common signals when the touch is not touched, which will not be repeated in the embodiments of the present application.
  • the driving circuit layer 22 includes an active layer 221, a gate insulating layer 222, a gate layer 223, an interlayer insulating layer 224, a source-drain layer 225, a planarized Layer 226.
  • the embodiment of the present application uses a top-gate and bottom-contact thin film transistor to show the arrangement of the driving circuit layer, but the embodiment of the present application is not limited to this, and the display panels in the embodiment of the present application can be used for display panels with a bottom-gate structure and a top-gate structure.
  • the design method of the common electrode layer is not limited to this, and the display panels in the embodiment of the present application can be used for display panels with a bottom-gate structure and a top-gate structure.
  • the display panel further includes a pixel electrode layer 81 and a pixel definition layer 82 .
  • the light-emitting layer 23 includes a hole injection layer 231, a hole transport layer 232, a light-emitting material layer 233, and an electron transport layer 234.
  • the pixel electrode layer and the common electrode layer respectively input drive The voltage and the common voltage excite the luminescent material layer to emit light.
  • the luminescent material layer 233 includes blue luminescent material, green luminescent material and red luminescent material.
  • the material of the common electrode layer includes a magnesium-silver laminate.
  • an embodiment of the present application provides a display device, the display device includes a display panel and an electronic component 91, and the display panel includes:
  • a driving circuit layer 22 disposed on one side of the substrate 21;
  • a light emitting layer 23 disposed on a side of the driving circuit layer 22 away from the substrate 21;
  • the touch electrode 271 is disposed on the side of the common electrode layer 24 away from the light emitting layer 23;
  • the common electrode layer 24 includes a multiplexing electrode 241, the projection of the touch electrode 271 on the substrate 21 is perpendicular to the projection of the multiplexing electrode 241 on the substrate 21, and the display
  • the panel also includes a power management chip 32 , the multiplexing electrodes 241 are connected to the power management chip 32 , and the multiplexing electrodes 241 are used for transmitting common signals and touch signals.
  • An embodiment of the present application provides a display device.
  • the display device includes a display panel and electronic components.
  • the display panel forms multiplexed electrodes on the common electrode layer, and the multiplexed electrodes can transmit common signals and touch signals to realize the common electrode.
  • Function and touch function no need to form another layer of touch metal layer, reduce the thickness of the display panel, improve the light transmittance, without the need to prepare the touch electrode correspondingly reduce the insulating layer in the preparation of the touch layer, further reduce the The thickness of the display panel reduces the difficulty and complexity of the process.
  • the common electrode is used as the touch electrode, there will be no parasitic capacitance between the touch electrode and the common electrode, and the parasitic capacitance between the touch electrode and the common electrode will be eliminated.
  • Capacitors can improve the display effect and touch effect, and by connecting the power management chip with the multiplexing electrodes, the signal input to the multiplexing electrodes can be realized, and the function of the multiplexing electrodes can be realized.
  • the electronic component includes an under-display camera, and via holes may be formed in a region corresponding to the under-display camera to realize lighting of the under-display camera.
  • the display panel further includes a first touch signal line and a first common signal line, one end of the multiplexing electrode is connected to the first touch signal line, the The other end of the multiplexing electrode is connected to the first common signal line, and the power management chip is connected to the first common signal line.
  • the display panel further includes a diode, the anode of the diode is connected to the multiplexing electrode through the first common signal line, and the cathode of the diode is connected through the first common signal line.
  • a common signal line is connected with the power management chip.
  • the display panel further includes a touch driving chip, and the touch driving chip is connected to the first touch signal line.
  • the first touch signal line is connected to the power management chip, and the power management chip is configured to output touch signals and common signals.
  • the common electrode layer further includes a common electrode, the common electrode is connected to the power management chip, and the common electrode is used for transmitting common signals.
  • the display panel further includes a second touch signal line and a second common signal line, one end of the second touch signal line is connected to the multiplexing electrode, and the The other end of the second touch signal line is connected to the power management chip, one end of the second common signal line is connected to the common electrode, and the other end of the second common signal line is connected to the power management chip.
  • the display panel further includes a third touch signal line, a third common signal line, and a fourth common signal line, and the third touch signal line and the multiplexing One end of the electrode is connected, one end of the third common signal line is connected to the other end of the multiplexing electrode, the other end of the third common signal line is connected to the power management chip, and the third touch signal line is connected to the One end of the common electrode is connected, one end of the fourth common signal line is connected to the other end of the common electrode, and the other end of the fourth common signal line is connected to the power management chip.
  • the display panel further includes a touch driving chip, and the touch driving chip is connected to the third touch signal line.
  • Embodiments of the present application provide a display panel and a display device.
  • the display panel includes a substrate, a driving circuit layer, a light emitting layer, a common electrode layer, and a touch electrode.
  • the driving circuit layer is disposed on one side of the substrate, and the light emitting layer is disposed on the driving The side of the circuit layer away from the substrate, the common electrode layer is arranged on the side of the light-emitting layer away from the driving circuit layer, and the touch electrode is arranged on the side of the common electrode layer away from the light-emitting layer, wherein the common electrode layer includes multiplexing electrodes, and the touch
  • the projection of the control electrode on the substrate is perpendicular to the projection of the multiplexing electrode on the substrate.
  • the display panel also includes a power management chip, the multiplexing electrode is connected to the power management chip, and the multiplexing electrode is used to transmit common signals and touch signals.
  • multiplexing electrodes are formed on the common electrode layer, and the multiplexing electrodes can transmit common signals and touch signals, so as to realize the functions of the common electrodes and the touch control function, without forming an additional layer of touch metal layer, which reduces the cost of the display panel.
  • Thickness improve the light transmittance, without the need to prepare the touch electrode and correspondingly reduce the insulating layer in the preparation of the touch layer, further reduce the thickness of the display panel, reduce the difficulty and complexity of the process, and at the same time, because the common electrode is used as the touch electrode, there will be no parasitic capacitance between the touch electrode and the common electrode, eliminate the parasitic capacitance between the touch electrode and the common electrode, improve the display effect and touch effect, and connect the power management chip and the multiplexing electrode , can realize the signal input to the multiplexing electrode, and realize the function of the multiplexing electrode.

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Abstract

一种显示面板和显示装置，其中，显示面板通过在公共电极层（24）形成复用电极（241），而复用电极（241）可以传输公共信号和触控信号，实现公共电极的功能和触控功能，消除触控电极和公共电极之间的寄生电容，提高显示效果和触控效果，且通过采用电源管理芯片（32）与复用电极（241）连接，可以实现对复用电极（241）的信号输入，实现复用电极（241）的功能。

Description

显示面板和显示装置 技术领域
本申请涉及显示技术领域，尤其是涉及一种显示面板和显示装置。
 背景技术
随着显示技术朝着更轻薄、柔性高、视角更广的方向发展，OLED（Organic Light-Emitting Diode，有机发光二极管）显示器件由于具有无需背光、可弯曲、广视角、超高对比度、响应速度快等优点被广泛利用。为了进一步实现OLED显示器件的轻薄化，现有技术会将采用DOT（Direct On Cell Touch，直接将触控层制作在面板上）设计降低OLED显示器件的厚度。但现有DOT设计的OLED显示器件会导致驱动电极和接收电极与阴极之间的寄生电容较大，从而导致触控驱动负载大，触控效果差，且现有DOT设计采用双层金属，影响透过率，显示效果差，且驱动电极和接收电极的设计方式导致显示面板的厚度较大，制备工艺较为复杂。
所以，现有DOT设计的OLED显示器件存在触控电极与阴极之间的寄生电容较大所导致的显示效果和触控效果较差的技术问题。
 技术问题
本申请实施例提供一种显示面板和显示装置，用以缓解现有DOT设计的OLED显示器件存在触控电极与阴极之间的寄生电容较大所导致的显示效果和触控效果较差的技术问题。
 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：
本申请实施例提供一种显示面板，该显示面板包括：
衬底；
驱动电路层，设置于所述衬底一侧；
发光层，设置于所述驱动电路层远离所述衬底的一侧；
公共电极层，设置于所述发光层远离所述驱动电路层的一侧；
触控电极，设置于所述公共电极层远离所述发光层的一侧；
其中，所述公共电极层包括复用电极，所述触控电极在所述衬底上的投影与所述复用电极在所述衬底上的投影垂直，所述显示面板还包括电源管理芯片，所述复用电极与所述电源管理芯片连接，所述复用电极用于传输公共信号和触控信号。
在一些实施例中，所述显示面板还包括第一触控信号线和第一公共信号线，所述复用电极一端与所述第一触控信号线连接，所述复用电极另一端与所述第一公共信号线连接，所述电源管理芯片与所述第一公共信号线连接。
在一些实施例中，所述显示面板还包括二极管，所述二极管的正极通过所述第一公共信号线与所述复用电极连接，所述二极管的负极通过所述第一公共信号线与所述电源管理芯片连接。
在一些实施例中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第一触控信号线连接。
在一些实施例中，所述第一触控信号线与所述电源管理芯片连接，所述电源管理芯片用于输出触控信号和公共信号。
在一些实施例中，所述公共电极层还包括公共电极，所述公共电极与所述电源管理芯片连接，所述公共电极用于传输公共信号。
在一些实施例中，所述显示面板还包括第二触控信号线和第二公共信号线，所述第二触控信号线一端与所述复用电极连接，所述第二触控信号线另一端与所述电源管理芯片连接，所述第二公共信号线一端与所述公共电极连接，所述第二公共信号线另一端与所述电源管理芯片连接。
在一些实施例中，所述显示面板还包括第三触控信号线、第三公共信号线和第四公共信号线，所述第三触控信号线和所述复用电极的一端连接，所述第三公共信号线一端与所述复用电极的另一端连接，所述第三公共信号线另一端与所述电源管理芯片连接，所述第三触控信号线与所述公共电极的一端连接，所述第四公共信号线一端与所述公共电极的另一端连接，所述第四公共信号线另一端与所述电源管理芯片连接。
在一些实施例中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第三触控信号线连接。
在一些实施例中，所述显示面板还包括封装层和缓冲层，所述封装层设置于所述公共电极层远离所述发光层的一侧，所述缓冲层设置于所述封装层与所述触控电极之间。
在一些实施例中，所述显示面板还包括绝缘层和封装层，所述绝缘层设置于所述公共电极层远离所述发光层的一侧，所述封装层设置于所述触控电极远离所述绝缘层的一侧。
同时，本申请实施例提供一种显示装置，该显示装置包括显示面板和电子元件，所述显示面板包括：
衬底；
驱动电路层，设置于所述衬底一侧；
发光层，设置于所述驱动电路层远离所述衬底的一侧；
公共电极层，设置于所述发光层远离所述驱动电路层的一侧；
触控电极，设置于所述公共电极层远离所述发光层的一侧；
其中，所述公共电极层包括复用电极，所述触控电极在所述衬底上的投影与所述复用电极在所述衬底上的投影重合，所述显示面板还包括电源管理芯片，所述复用电极与所述电源管理芯片连接，所述复用电极用于传输公共信号和触控信号。
在一些实施例中，所述显示面板还包括第一触控信号线和第一公共信号线，所述复用电极一端与所述第一触控信号线连接，所述复用电极另一端与所述第一公共信号线连接，所述电源管理芯片与所述第一公共信号线连接。
在一些实施例中，所述显示面板还包括二极管，所述二极管的正极通过所述第一公共信号线与所述复用电极连接，所述二极管的负极通过所述第一公共信号线与所述电源管理芯片连接。
在一些实施例中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第一触控信号线连接。
在一些实施例中，所述第一触控信号线与所述电源管理芯片连接，所述电源管理芯片用于输出触控信号和公共信号。
在一些实施例中，所述公共电极层还包括公共电极，所述公共电极与所述电源管理芯片连接，所述公共电极用于传输公共信号。
在一些实施例中，所述显示面板还包括第二触控信号线和第二公共信号线，所述第二触控信号线一端与所述复用电极连接，所述第二触控信号线另一端与所述电源管理芯片连接，所述第二公共信号线一端与所述公共电极连接，所述第二公共信号线另一端与所述电源管理芯片连接。
在一些实施例中，所述显示面板还包括第三触控信号线、第三公共信号线和第四公共信号线，所述第三触控信号线和所述复用电极的一端连接，所述第三公共信号线一端与所述复用电极的另一端连接，所述第三公共信号线另一端与所述电源管理芯片连接，所述第三触控信号线与所述公共电极的一端连接，所述第四公共信号线一端与所述公共电极的另一端连接，所述第四公共信号线另一端与所述电源管理芯片连接。
在一些实施例中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第三触控信号线连接。
 有益效果
本申请实施例提供一种显示面板和显示装置；该显示面板包括衬底、驱动电路层、发光层、公共电极层和触控电极，驱动电路层设置于衬底一侧，发光层设置于驱动电路层远离衬底的一侧，公共电极层设置于发光层远离驱动电路层的一侧，触控电极设置于公共电极层远离发光层的一侧，其中，公共电极层包括复用电极，触控电极在衬底上的投影与复用电极在衬底上的投影垂直，显示面板还包括电源管理芯片，复用电极与电源管理芯片连接，复用电极用于传输公共信号和触控信号。本申请通过在公共电极层形成复用电极，而复用电极可以传输公共信号和触控信号，实现公共电极的功能和触控功能，无需另外形成一层触控金属层，降低了显示面板的厚度，提高光线透过率，而无需制备触控电极相应减少制备触控层中的绝缘层，进一步减小了显示面板的厚度，降低工艺难度和复杂度，同时，由于将公共电极作为触控电极，则不会存在触控电极和公共电极之间的寄生电容，消除触控电极和公共电极之间的寄生电容，提高显示效果和触控效果，且通过采用电源管理芯片与复用电极连接，可以实现对复用电极的信号输入，实现复用电极的功能。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为现有OLED显示器件的示意图。
图2为本申请实施例提供的显示面板的第一种示意图。
图3为本申请实施例提供的显示面板的第二种示意图。
图4为本申请实施例提供的显示面板的触控驱动芯片输出的信号的时序图。
图5为本申请实施例提供的显示面板的第三种示意图。
图6为本申请实施例提供的显示面板的第四种示意图。
图7为本申请实施例提供的显示面板的第五种示意图。
图8为本申请实施例提供的显示面板的第六种示意图。
图9为本申请实施例提供的显示装置的示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图1所示，现有DOT设计的OLED显示器件包括衬底11、阵列层12、发光层13、封装层14、缓冲层15，DOT设计的触控层包括驱动电极层16、第一绝缘层17、接收电极层18、第二绝缘层19，该触控层设置在缓冲层15上，且接收电极层18包括接收电极181和连接接收电极181的连接线182，相应的驱动电极层16包括驱动电极和连接驱动电极的连接线（图1中未示出）。
从图1中可以知道，DOT设计的触控层包括两层金属层和两层绝缘层，导致OLED显示面板的厚度较大，且制备工艺较复杂，同时，由于驱动电极和接收电极会与公共电极之间形成寄生电容，导致OLED显示器件的压降较大，导致OLED显示器件的各个像素的显示亮度不一致，影响显示效果，同时在触控时，由于压降问题导致触控不准确，影响触控效果。所以，现有DOT设计的OLED显示器件存在厚度较大、触控电极与阴极之间的寄生电容较大所导致的显示效果和触控效果较差的技术问题。
针对上述技术问题，本申请实施例提供一种显示面板和显示装置，用于缓解上述技术问题。
如图2、图3所示，本申请实施例提供一种显示面板，该显示面板包括：
衬底21；
驱动电路层22，设置于所述衬底21一侧；
发光层23，设置于所述驱动电路层22远离所述衬底21的一侧；
公共电极层24，设置于所述发光层23远离所述驱动电路层22的一侧；
触控电极271，设置于所述公共电极层24远离所述发光层23的一侧；
其中，所述公共电极层24包括复用电极241，所述触控电极271在所述衬底21上的投影与所述复用电极241在所述衬底21上的投影垂直，所述显示面板还包括电源管理芯片32，所述复用电极241与所述电源管理芯片32连接，所述复用电极241用于传输公共信号和触控信号。
本申请实施例提供一种显示面板，该显示面板通过在公共电极层形成复用电极，而复用电极可以传输公共信号和触控信号，实现公共电极的功能和触控功能，无需另外形成一层触控金属层，降低了显示面板的厚度，提高光线透过率，而无需制备触控电极相应减少制备触控层中的绝缘层，进一步减小了显示面板的厚度，降低工艺难度和复杂度，同时，由于将公共电极作为触控电极，则不会存在触控电极和公共电极之间的寄生电容，消除触控电极和公共电极之间的寄生电容，提高显示效果和触控效果，且通过采用电源管理芯片与复用电极连接，可以实现对复用电极的信号输入，实现复用电极的功能。
需要说明的是，在下述部分实施例中，以复用电极输出的触控信号为驱动信号为例进行说明，即触控电极为接收电极为例进行说明。
在一种实施例中，如图3所示，所述显示面板还包括第一触控信号线242和第一公共信号线243，所述复用电极241一端与所述第一触控信号线242连接，所述复用电极241另一端与所述第一公共信号线243连接。通过将第一触控信号线和第一公共信号线分别与复用电极的两端连接，使得第一触控信号线能够提供传输触控信号和公共信号，第一公共信号线能够传输公共信号，从而使公共电极层实现公共电极的功能和触控电极的功能。
针对公共电极实现驱动电极的功能时，公共电极需要传输驱动信号和公共信号，为了避免电压出现回灌。在一种实施例中，如图3所示，所述显示面板还包括二极管33，所述二极管33的正极通过所述第一公共信号线243与所述复用电极241连接，所述二极管33的负极通过所述第一公共信号线243与所述电源管理芯片32连接。通过在第一公共电极线和电源管理芯片之间设置二极管，可以避免电压回灌至电源管理芯片，造成损伤电源管理芯片的问题。
在一种实施例中，如图3所示，所述显示面板还包括触控驱动芯片31，所述触控驱动芯片31与所述第一触控信号线242连接。通过采用触控驱动芯片与第一触控信号线连接，则第一触控信号可以传输公共信号和触控信号至公共电极，电源管理芯片输出公共信号，从而使得公共电极层能够实现公共电极的功能和触控功能，且分别采用触控驱动芯片和电源管理芯片输出不同的信号，可以避免信号出现串扰。
需要说明的是，触控驱动芯片是指TDDI（Touch and Display Diver Intergration，触控与显示驱动集成），即将触控芯片和驱动芯片合二为一，可以输出触控所需的触控信号，输入接收电极的接收信号，输出显示所需的驱动信号，从而实现触控芯片和驱动芯片的功能。
具体的，如图4所示，横坐标为时间t，纵坐标为电压V，触控驱动芯片输出的信号的时序图中，以方波的形式输出触控信号，其中，触控信号包括触控电压V2和公共电压V1，同时，由于触控电压V2小于公共电压V1，而电源管理芯片输出公共电压V1，在第一公共信号线上设置二极管，则避免了触控驱动芯片输出的信号回灌至公共信号端，且通过输出上述信号，实现了公共电极的功能和驱动电极的功能，无需单独设置驱动电极。
需要说明的是，在本申请实施例中，以触控信号包括方波形式的触控电压V2和公共电极V1为例进行了说明，在触控驱动芯片输出触控信号时，由于此时公共电极上仍然存在电压，虽然是以方波形式的V1和V2进行输出，但仍然可以实现显示效果，即在本申请实施例中，无论是触控阶段还是非触控阶段，由于公共电极上输出有电压，因此显示面板可以持续实现显示效果，区别仅在于非触控阶段持续输出V1作为公共信号，而在触控阶段输出方波实现触控和显示功能，此时公共信号为方波形式的V1和V2。
在一种实施例中，如图5所示，所述公共电极层还包括公共电极341，所述公共电极341与所述电源管理芯片32连接，所述公共电极341用于传输公共信号。通过将公共电极层设置为复用电极和公共电极，使得对应触控区域，复用电极在进行触控时传输触控信号，而在非触控时，持续传输公共信号，实现公共电极的功能和触控功能，而在非触控区域，使公共电极持续输出公共信号，进行显示面板的显示。
针对公共电极层传输公共信号和触控信号时，在显示面板两侧设置信号线会导致显示面板的边框较大的问题。在一种实施例中，如图5所示，所述显示面板还包括第二触控信号线245和第二公共信号线244，所述第二触控信号线245一端与所述复用电极241连接，所述第二触控信号线245另一端与所述电源管理芯片32连接，所述第二公共信号线244一端与所述公共电极341连接，所述第二公共信号线244另一端与所述电源管理芯片32连接。对于显示面板的触控区域和非触控区域，通过采用复用电极和公共电极的设置方式，使第二触控信号线在触控时传输触控信号，在非触控时传输公共信号，而第二公共信号线持续传输公共信号，从而使得公共电极层实现公共电极的功能和驱动电极的功能，无需另外设置驱动电路层，降低显示面板的厚度，且消除驱动电极和公共电极之间的寄生电容，且通过采用电源管理芯片分别于第二公共信号线和第二触控信号线连接，无需采用触控驱动芯片和电源管理芯片分别输出信号，无需将第二触控信号线与触控驱动芯片连接，减小触控驱动芯片的尺寸，降低显示面板的边框的宽度，实现窄边框。
具体的，第二触控信号线上输出的信号的时序图如图4所示，以方波的形式输出触控电压V2和公共电压V1，在触控时输出触控电压V2和公共电压V1实现触控功能和显示功能，在非触控时输出公共信号V1，实现显示功能。
在一种实施例中，如图6所示，所述显示面板还包括第三触控信号线246、第三公共信号线243b和第四公共信号线243a，所述第三触控信号线246和所述复用电极241的一端连接，所述第三公共信号线243b一端与所述复用电极241的另一端连接，所述第三公共信号线243b另一端与所述电源管理芯片32连接，所述第三触控信号线246与所述公共电极341的一端连接，所述第四公共信号线243a一端与所述公共电极341的另一端连接，所述第四公共信号线243a另一端与所述电源管理芯片32连接。通过将第三触控信号线与复用电极和公共电极的一端连接，使第三公共信号线与复用电极的另一端连接，第四公共信号线与公共电极的另一端连接，则在触控区域，第三触控信号线输出触控信号和公共信号，实现触控功能和显示功能，且输出公共信号实现公共电极的功能，而第三公共信号线此时设定为高阻状态，相当于开路，避免触控信号回灌至电源管理芯片，而第四公共信号线对应非触控区域，持续输出公共信号，实现显示功能。
在一种实施例中，如图6所示，所述显示面板还包括触控驱动芯片31，所述触控驱动芯片31与所述第三触控信号线246连接。通过触控驱动芯片输出触控信号和公共信号，使得公共电极层实现触控功能，通过电源管理芯片输出公共信号，使得在触控区域，能够在非触控阶段持续输出公共信号，在非触控区域，能够持续输出公共信号，从而实现公共电极层的电源信号输出功能。
具体的，第三触控信号线上输出如图4所示的信号，以方波的形式输触控电压V2和公共电压V1，在触控时输出触控电压V2和公共电压V1实现触控功能，在非触控时持续输出公共电压V1作为公共信号，此时第四公共信号线设定为High-Z（高阻）状态，避免第三触控信号线输出的信号回灌至电源管理芯片，而在非触控时，通过第四公共信号线输出公共信号，从而使得显示面板正常显示，而对于非触控区域，第三公共信号线持续输出公共信号，使显示面板正常显示。
需要说明的是，在图6所对应的实施例中，以第三公共信号线和第四公共信号线对应触控区域和非触控区域进行了说明，但在本申请实施例中，在触控点变化时，第三公共信号线和第四公共信号线对应的区域可以对换，即第三公共信号线对应非触控区域，第四公共信号线对应触控区域，相应的第三触控信号线输出的信号也进行变化，本申请实施例中的触控区域和非触控区域表示触控时的区域，并不是限定该区域一直为触控区域，相应的非触控区域表示某一时间段为非触控区域，在接收到触控信号时，该区域为触控区域。
在一种实施例中，如图2所示，所述显示面板还包括封装层25和缓冲层26，所述封装层25设置于所述公共电极层24远离所述发光层23的一侧，所述缓冲层26设置于所述封装层25与所述触控电极271之间。针对公共电极层传输触控信号用于实现驱动电极的功能，无需设置驱动电极，相应的可以在缓冲层上设置触控电极，并将触控电极与复用电极垂直设置，从而可以实现显示面板的触控功能。
在一种实施例中，如图7所示，所述显示面板还包括绝缘层28和封装层25，所述绝缘层28设置于所述公共电极层24远离所述发光层23的一侧，所述封装层25设置于所述触控电极271远离所述绝缘层28的一侧。针对触控信号为驱动电极的信号时，将接收电极也设置在封装层内，对接收电极和公共电极进行保护，而绝缘层设置在接收电极和公共电极之间，可以避免接收电极和公共电极之间出现短路，导致信号串扰，而接收电极与公共电极垂直设置，实现显示面板的触控功能。
需要说明的是，在图3、图5、图6中，触控电极与复用电极层叠，但在实际中，触控电极和复用电极位于不同层，如图2所示。
在一种实施例中，如图2、图3所示，所述显示面板还包括触控电极层27，所述触控电极层27包括触控电极271和接收信号线272，所述接收信号线272一端与所述触控电极271连接，所述接收信号线另一端与所述触控驱动芯片31连接，通过接收信号线将接收电极与触控驱动芯片连接，使得在接收电极感应到触控时，接收电极将接收信号从接收信号线传递至触控驱动芯片，从而检测出触控点，实现触控功能。
上述实施例中以触控电极为接收电极，且接收电极设置在封装层远离发光层的一侧时，对公共电极层的设置方式进行了详细描述，而在本申请实施例中，在接收电极设置于封装层和发光层之间时，对应的公共电极层的设置方式也可以采用上述实施例中任一所述的复用电极、公共电极、公共信号线、触控信号线的设置方式，且公共信号线、公共电极、复用电极、触控信号线的连接方式也可以采用上述实施例中任一所述的连接方式，而公共信号线、触控信号线与触控驱动芯片和电源管理芯片也可以采用上述实施例中任一所述的连接方式，在此不在赘述。
上述实施例以触控信号为驱动电极的信号为例进行了详细说明。在上述实施例中，由于现有技术中驱动电极的排列方向与公共电极相同，且驱动电极设置在显示面板较长的一边，导致驱动电极与公共电极之间的重合面积，大于接收电极与公共电极的重合面积，即驱动电极与公共电极之间的寄生电容，相较于接收电极和公共电极的寄生电容更大，因此，上述实施例中对复用电极传输驱动电极的信号进行了详细描述，消除了驱动电极与公共电极之间的寄生电容，从而改善显示面板的显示效果和触控效果。
而在本申请实施例中，并不限定触控信号为驱动电极的信号，触控信号也可以为接收电极的信号。
具体的，在一种实施例中，所述触控电极为驱动电极。
在本申请实施例中，在触控信号为接收电极的信号时，接收电极对应的接收信号线的连接方式可以与上述实施例中触控信号为驱动电极的信号时，驱动电极对应的驱动信号线的连接方式对应，使得在触控时，公共电极传输接收信号，在非触控时，公共电极传输公共信号，本申请实施例不再赘述。
在一种实施例中，如图8所示，所述驱动电路层22包括有源层221、栅极绝缘层222、栅极层223、层间绝缘层224、源漏极层225、平坦化层226。本申请实施例以顶栅底接触的薄膜晶体管示出驱动电路层的设置方式，但本申请实施例不限于此，对于底栅结构、顶栅结构的显示面板均可以采用本申请实施例中的公共电极层的设计方式。
在一种实施例中，所述显示面板还包括像素电极层81和像素定义层82。
在一种实施例中，发光层23包括空穴注入层231、空穴传输层232、发光材料层233、电子传输层234，显示面板在显示时，通过像素电极层和公共电极层分别输入驱动电压和公共电压激发发光材料层发光。
具体的，发光材料层233包括蓝色发光材料、绿色发光材料和红色发光材料。
在一种实施例中，公共电极层的材料包括镁银叠层。
同时，如图9所示，本申请实施例提供一种显示装置，该显示装置包括显示面板和电子元件91，所述显示面板包括：
衬底21；
驱动电路层22，设置于所述衬底21一侧；
发光层23，设置于所述驱动电路层22远离所述衬底21的一侧；
公共电极层24，设置于所述发光层23远离所述驱动电路层22的一侧；
触控电极271，设置于所述公共电极层24远离所述发光层23的一侧；
其中，所述公共电极层24包括复用电极241，所述触控电极271在所述衬底21上的投影与所述复用电极241在所述衬底21上的投影垂直，所述显示面板还包括电源管理芯片32，所述复用电极241与所述电源管理芯片32连接，所述复用电极241用于传输公共信号和触控信号。
本申请实施例提供一种显示装置，该显示装置包括显示面板和电子元件，该显示面板通过在公共电极层形成复用电极，而复用电极可以传输公共信号和触控信号，实现公共电极的功能和触控功能，无需另外形成一层触控金属层，降低了显示面板的厚度，提高光线透过率，而无需制备触控电极相应减少制备触控层中的绝缘层，进一步减小了显示面板的厚度，降低工艺难度和复杂度，同时，由于将公共电极作为触控电极，则不会存在触控电极和公共电极之间的寄生电容，消除触控电极和公共电极之间的寄生电容，提高显示效果和触控效果，且通过采用电源管理芯片与复用电极连接，可以实现对复用电极的信号输入，实现复用电极的功能。
在一种实施例中，所述电子元件包括屏下摄像头，在对应屏下摄像头的区域，可以形成过孔以实现屏下摄像头的采光。
在一种实施例中，在显示装置中，所述显示面板还包括第一触控信号线和第一公共信号线，所述复用电极一端与所述第一触控信号线连接，所述复用电极另一端与所述第一公共信号线连接，所述电源管理芯片与所述第一公共信号线连接。
在一种实施例中，在显示装置中，所述显示面板还包括二极管，所述二极管的正极通过所述第一公共信号线与所述复用电极连接，所述二极管的负极通过所述第一公共信号线与所述电源管理芯片连接。
在一种实施例中，在显示装置中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第一触控信号线连接。
在一种实施例中，在显示装置中，所述第一触控信号线与所述电源管理芯片连接，所述电源管理芯片用于输出触控信号和公共信号。
在一种实施例中，在显示装置中，所述公共电极层还包括公共电极，所述公共电极与所述电源管理芯片连接，所述公共电极用于传输公共信号。
在一种实施例中，在显示装置中，所述显示面板还包括第二触控信号线和第二公共信号线，所述第二触控信号线一端与所述复用电极连接，所述第二触控信号线另一端与所述电源管理芯片连接，所述第二公共信号线一端与所述公共电极连接，所述第二公共信号线另一端与所述电源管理芯片连接。
在一种实施例中，在显示装置中，所述显示面板还包括第三触控信号线、第三公共信号线和第四公共信号线，所述第三触控信号线和所述复用电极的一端连接，所述第三公共信号线一端与所述复用电极的另一端连接，所述第三公共信号线另一端与所述电源管理芯片连接，所述第三触控信号线与所述公共电极的一端连接，所述第四公共信号线一端与所述公共电极的另一端连接，所述第四公共信号线另一端与所述电源管理芯片连接。
在一种实施例中，在显示装置中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第三触控信号线连接。
根据以上实施例可知：
本申请实施例提供一种显示面板和显示装置，该显示面板包括衬底、驱动电路层、发光层、公共电极层和触控电极，驱动电路层设置于衬底一侧，发光层设置于驱动电路层远离衬底的一侧，公共电极层设置于发光层远离驱动电路层的一侧，触控电极设置于公共电极层远离发光层的一侧，其中，公共电极层包括复用电极，触控电极在衬底上的投影与复用电极在衬底上的投影垂直，显示面板还包括电源管理芯片，复用电极与电源管理芯片连接，复用电极用于传输公共信号和触控信号。本申请通过在公共电极层形成复用电极，而复用电极可以传输公共信号和触控信号，实现公共电极的功能和触控功能，无需另外形成一层触控金属层，降低了显示面板的厚度，提高光线透过率，而无需制备触控电极相应减少制备触控层中的绝缘层，进一步减小了显示面板的厚度，降低工艺难度和复杂度，同时，由于将公共电极作为触控电极，则不会存在触控电极和公共电极之间的寄生电容，消除触控电极和公共电极之间的寄生电容，提高显示效果和触控效果，且通过采用电源管理芯片与复用电极连接，可以实现对复用电极的信号输入，实现复用电极的功能。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示面板和显示装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种显示面板，其包括：
    衬底；
    驱动电路层，设置于所述衬底一侧；
    发光层，设置于所述驱动电路层远离所述衬底的一侧；
    公共电极层，设置于所述发光层远离所述驱动电路层的一侧；
    触控电极，设置于所述公共电极层远离所述发光层的一侧；
    其中，所述公共电极层包括复用电极，所述触控电极在所述衬底上的投影与所述复用电极在所述衬底上的投影垂直，所述显示面板还包括电源管理芯片，所述复用电极与所述电源管理芯片连接，所述复用电极用于传输公共信号和触控信号。
  2. 如权利要求1所述的显示面板，其中，所述显示面板还包括第一触控信号线和第一公共信号线，所述复用电极一端与所述第一触控信号线连接，所述复用电极另一端与所述第一公共信号线连接，所述电源管理芯片与所述第一公共信号线连接。
  3. 如权利要求2所述的显示面板，其中，所述显示面板还包括二极管，所述二极管的正极通过所述第一公共信号线与所述复用电极连接，所述二极管的负极通过所述第一公共信号线与所述电源管理芯片连接。
  4. 如权利要求3所述的显示面板，其中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第一触控信号线连接。
  5. 如权利要求2所述的显示面板，其中，所述第一触控信号线与所述电源管理芯片连接，所述电源管理芯片用于输出触控信号和公共信号。
  6. 如权利要求1所述的显示面板，其中，所述公共电极层还包括公共电极，所述公共电极与所述电源管理芯片连接，所述公共电极用于传输公共信号。
  7. 如权利要求6所述的显示面板，其中，所述显示面板还包括第二触控信号线和第二公共信号线，所述第二触控信号线一端与所述复用电极连接，所述第二触控信号线另一端与所述电源管理芯片连接，所述第二公共信号线一端与所述公共电极连接，所述第二公共信号线另一端与所述电源管理芯片连接。
  8. 如权利要求6所述的显示面板，其中，所述显示面板还包括第三触控信号线、第三公共信号线和第四公共信号线，所述第三触控信号线和所述复用电极的一端连接，所述第三公共信号线一端与所述复用电极的另一端连接，所述第三公共信号线另一端与所述电源管理芯片连接，所述第三触控信号线与所述公共电极的一端连接，所述第四公共信号线一端与所述公共电极的另一端连接，所述第四公共信号线另一端与所述电源管理芯片连接。
  9. 如权利要求8所述的显示面板，其中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第三触控信号线连接。
  10. 如权利要求1所述的显示面板，其中，所述显示面板还包括封装层和缓冲层，所述封装层设置于所述公共电极层远离所述发光层的一侧，所述缓冲层设置于所述封装层与所述触控电极之间。
  11. 如权利要求1所述的显示面板，其中，所述显示面板还包括绝缘层和封装层，所述绝缘层设置于所述公共电极层远离所述发光层的一侧，所述封装层设置于所述触控电极远离所述绝缘层的一侧。
  12. 一种显示装置，其包括显示面板和电子元件，所述显示面板包括：
    衬底；
    驱动电路层，设置于所述衬底一侧；
    发光层，设置于所述驱动电路层远离所述衬底的一侧；
    公共电极层，设置于所述发光层远离所述驱动电路层的一侧；
    触控电极，设置于所述公共电极层远离所述发光层的一侧；
    其中，所述公共电极层包括复用电极，所述触控电极在所述衬底上的投影与所述复用电极在所述衬底上的投影重合，所述显示面板还包括电源管理芯片，所述复用电极与所述电源管理芯片连接，所述复用电极用于传输公共信号和触控信号。
  13. 如权利要求12所述的显示装置，其中，所述显示面板还包括第一触控信号线和第一公共信号线，所述复用电极一端与所述第一触控信号线连接，所述复用电极另一端与所述第一公共信号线连接，所述电源管理芯片与所述第一公共信号线连接。
  14. 如权利要求13所述的显示装置，其中，所述显示面板还包括二极管，所述二极管的正极通过所述第一公共信号线与所述复用电极连接，所述二极管的负极通过所述第一公共信号线与所述电源管理芯片连接。
  15. 如权利要求14所述的显示装置，其中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第一触控信号线连接。
  16. 如权利要求14所述的显示装置，其中，所述第一触控信号线与所述电源管理芯片连接，所述电源管理芯片用于输出触控信号和公共信号。
  17. 如权利要求12所述的显示装置，其中，所述公共电极层还包括公共电极，所述公共电极与所述电源管理芯片连接，所述公共电极用于传输公共信号。
  18. 如权利要求17所述的显示装置，其中，所述显示面板还包括第二触控信号线和第二公共信号线，所述第二触控信号线一端与所述复用电极连接，所述第二触控信号线另一端与所述电源管理芯片连接，所述第二公共信号线一端与所述公共电极连接，所述第二公共信号线另一端与所述电源管理芯片连接。
  19. 如权利要求17所述的显示装置，其中，所述显示面板还包括第三触控信号线、第三公共信号线和第四公共信号线，所述第三触控信号线和所述复用电极的一端连接，所述第三公共信号线一端与所述复用电极的另一端连接，所述第三公共信号线另一端与所述电源管理芯片连接，所述第三触控信号线与所述公共电极的一端连接，所述第四公共信号线一端与所述公共电极的另一端连接，所述第四公共信号线另一端与所述电源管理芯片连接。
  20. 如权利要求19所述的显示装置，其中，所述显示面板还包括触控驱动芯片，所述触控驱动芯片与所述第三触控信号线连接。
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