WO2023044951A1 - 显示面板 - Google Patents

显示面板 Download PDF

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Publication number
WO2023044951A1
WO2023044951A1 PCT/CN2021/121887 CN2021121887W WO2023044951A1 WO 2023044951 A1 WO2023044951 A1 WO 2023044951A1 CN 2021121887 W CN2021121887 W CN 2021121887W WO 2023044951 A1 WO2023044951 A1 WO 2023044951A1
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WO
WIPO (PCT)
Prior art keywords
signal
line
functional unit
display panel
frame area
Prior art date
Application number
PCT/CN2021/121887
Other languages
English (en)
French (fr)
Inventor
方亮
丁玎
Original Assignee
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 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US17/611,113 priority Critical patent/US20240045544A1/en
Publication of WO2023044951A1 publication Critical patent/WO2023044951A1/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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • 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
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • 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

Definitions

  • the present application relates to the field of display technology, and in particular to a display panel.
  • Flexible organic light emitting diode Organic Light Emitting Diode, OLED
  • OLED Organic Light Emitting Diode
  • the oncecell touch solution of Matrix Organic Light Emitting Diode (AMOLED) display is to set the touch panel on the OLED panel. -DOT) scheme.
  • the self-capacitance structure includes a plurality of independent sub-touch electrodes, and each independent sub-touch electrode is independently led out through a touch wire, which can effectively improve performance such as touch sensitivity.
  • this self-capacitive touch solution there is signal interference between the touch wire and the adjacent sub-touch electrodes, which leads to poor touch performance.
  • the present application provides a display panel to alleviate the technical problem of poor touch performance in existing touch solutions.
  • An embodiment of the present application provides a display panel, which includes a display area and a non-display area surrounding the display area; the display panel further includes:
  • a plurality of functional unit groups are arranged at intervals along the first direction in the display area, and each of the functional unit groups includes at least one functional unit arranged along the second direction;
  • a plurality of first signal transmission lines each of the first signal transmission lines is electrically connected to one of the functional units;
  • the signal shielding line is set corresponding to the gap between two adjacent functional unit groups, and is located between the first signal transmission line of the same functional unit group and the functional units of the adjacent functional unit groups between.
  • the display panel further includes at least one signal monitoring line, and the signal monitoring line is arranged corresponding to the gap between two adjacent functional unit groups.
  • the driving signal on the signal shielding line is the same as the driving signal on the corresponding first signal transmission line.
  • the driving signal on the signal shielding line is a constant voltage signal.
  • the non-display area includes a relative upper frame area and a lower frame area, and a left frame area and a right frame area connecting the upper frame area and the lower frame area, so
  • the signal shielding lines extend from the display area to the upper frame area, wherein the signal shielding lines close to the left frame area are connected together in the upper frame area and extend into the left frame area;
  • the signal shielding lines close to the right frame area are connected together in the upper frame area and extend into the right frame area.
  • the signal monitoring line also extends from the display area to the upper frame area, and extends from the upper frame area to the left frame area or the right frame area , and in the non-display area, the signal monitoring line is located on a side of the signal shielding line away from the display area.
  • the lower border area is provided with a binding area, and the binding area is bound with a driver chip, the first signal transmission line, the signal shielding line and the signal monitoring The lines are all electrically connected to the drive chip, wherein the signal shielding line and the signal monitoring line both extend from the left frame area or the right frame area to the lower frame area and are electrically connected to the drive chip, And the signal shielding line and the signal monitoring line in the left frame area are electrically connected to the drive chip close to the left frame area, and the signal shielding line and the signal monitoring line in the right frame area The monitoring line is electrically connected to the driving chip close to the right frame area.
  • the functional unit includes a touch sensing unit, configured to implement a touch function of the display panel.
  • the first signal transmission line, the signal shielding line and the signal monitoring line are all arranged on the same layer as the functional unit.
  • an insulating protective layer is provided between the functional unit and the first signal transmission line, and the first signal transmission line passes through the first via hole of the insulating protective layer and the corresponding The functional units are electrically connected.
  • the signal monitoring line is arranged on the same layer as the first signal transmission line or on the same layer as the functional unit.
  • the signal monitoring line includes a first sub-signal monitoring line and a second via hole electrically connected to the first sub-signal monitoring line through the second via hole of the insulating layer protection layer.
  • the sub-signal monitoring line, the first sub-signal monitoring line is set on the same layer as the functional unit, and the second sub-signal monitoring line is set on the same layer as the first signal transmission line.
  • the signal shielding line includes a first sub-signal shielding line and a second via hole electrically connected to the first sub-signal shielding line through the third via hole of the insulating layer protection layer.
  • the first sub-signal shielding line is provided on the same layer as the functional unit, and the second sub-signal shielding line is provided on the same layer as the first signal transmission line.
  • the display panel provided by the present application includes a display area and a non-display area surrounding the display area, a plurality of functional unit groups are arranged at intervals along the first direction in the display area, each of the functional unit groups includes at least one Functional units arranged in two directions, each functional unit is electrically connected to a first signal transmission line, between the first signal transmission line of the same functional unit group and the functional unit of the adjacent functional unit group A signal shielding line is arranged between them, and the signal shielding line is set corresponding to the gap between two adjacent functional unit groups, and the signal shielding line can shield the signal from the functional unit to the first signal transmission line
  • at least one signal monitoring line is provided corresponding to the gap between two adjacent functional unit groups, and the signal monitoring line can monitor the interference signal in real time, and remove this part of the interference signal through the chip algorithm, To improve the problem of poor touch performance caused by signal interference, thereby solving the problem of poor touch performance in existing touch solutions.
  • FIG. 1 is a schematic top view structural diagram of a display panel provided by an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the detailed structure of the display components in FIG. 2 .
  • FIG. 4 is a schematic top view structural diagram of a functional unit provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another top view of the display panel provided by the embodiment of the present application.
  • FIG. 6 is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present application.
  • FIG. 7 is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present application.
  • Figure 1 is a schematic top view of the display panel provided by the embodiment of the present application
  • Figure 2 is a schematic cross-sectional structure of the display panel provided by the embodiment of the present application
  • Figure 3 is a schematic view of the structure of the display panel in Figure 2
  • the display panel 100 includes a display area AA and a non-display area NA surrounding the display area AA.
  • the display panel 100 further includes a display component 10 and a plurality of functional unit groups arranged on the display component 10, the plurality of functional unit groups are arranged in the display area AA at intervals along the first direction X, each The functional unit group includes at least one functional unit 20 arranged along the second direction Y.
  • first direction X is a horizontal direction
  • second direction Y is a vertical direction
  • first direction X and the second direction Y form an angle of 90 degrees.
  • present application is not limited thereto.
  • the first direction X and the second direction Y in the present application may also be set at other angles.
  • the functional units 20 are arranged in an array on the display assembly 10, the display assembly 10 is used to realize the display function of the display panel 100, and the functional units 20 are used to realize fingerprint recognition, touch control, etc.
  • the functional unit 20 when used to realize the fingerprint recognition function, the functional unit 20 is a fingerprint sensor; when used to realize the touch function, the functional unit 20 is a touch sensing unit.
  • the functional unit 20 is taken as an example of a touch sensor unit, and the DOT (Direct Oncell Touch, touch function is directly prepared on the display unit) touch solution is used to directly prepare the functional unit 20 on the display unit.
  • the display panel 100 has better integration, transmittance, and bending resistance, and can effectively reduce the thickness of the screen and reduce product costs.
  • the display component 10 includes a substrate 11 and a driving circuit layer 12, a light-emitting functional layer 13, and an encapsulation layer 14 sequentially stacked on the substrate 11, and the functional unit 20 is directly fabricated on the encapsulation layer. 14 on.
  • the substrate 11 can be a rigid substrate or a flexible substrate; when the substrate 11 is a rigid substrate, it can include a rigid substrate such as a glass substrate; when the substrate 11 is a flexible substrate, it can include polyimide Flexible substrates such as polyimide (PI) films and ultra-thin glass films can be used as substrates 11 to produce flexible display panels to achieve special properties such as bending and curling of the display panel 100 .
  • PI polyimide
  • a buffer layer 15 may also be provided between the substrate 11 and the driving circuit layer 12, and the material of the buffer layer 15 may include silicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride (SiON) and other inorganic materials, the buffer layer 15 can further prevent unwanted impurities or pollutants (such as moisture, oxygen, etc.) from diffusing from the substrate 11 to devices that may be damaged by these impurities or pollutants , while also providing a flat top surface.
  • silicon oxide SiOx
  • SiNx silicon nitride
  • SiON silicon oxynitride
  • the driving circuit layer 12 includes an active layer 121, a gate insulating layer 122, a gate 123, an interlayer insulating layer 124, a source-drain layer 125, a planarization layer 126,
  • the pixel electrode 127 and the pixel definition layer 128 , the active layer 121 includes a channel region 1211 and a source region 1212 and a drain region 1213 located on both sides of the channel region 1211 .
  • the gate insulating layer 122 covers the active layer 121 and the buffer layer 15, the gate 123 is disposed on the gate insulating layer 122, and the gate 123 is connected to the channel Area 1211 is set accordingly.
  • the interlayer insulating layer 124 covers the gate 123 and the gate insulating layer 122, the source and drain layer 125 is disposed on the interlayer insulating layer 124, and the source and drain layer 125 is patterned
  • the source electrode 1251, the drain electrode 1252, the data line 1253, etc. are formed, the source electrode 1251 is connected to the source region 1212 through the via hole of the interlayer insulating layer 124, and the drain electrode 1252 is connected to the source region 1212 through the interlayer insulating layer Another via hole of the insulating layer 124 is connected to the drain region 1213 .
  • the planarization layer 126 is covered on the source-drain layer 125 and the interlayer insulating layer 124, and the arrangement of the planarization layer 126 can provide a flat film surface for the display panel 100, so as to improve the preparation of light emission. Stability of the functional layer 13 .
  • the pixel electrode 127 is disposed on the planarization layer 126, and is connected to the source electrode 1251 or the drain electrode 1252 through the via hole of the planarization layer 126. In this application, the pixel electrode 127 and the The connection of the drain 1252 is used as an example for illustration.
  • the pixel definition layer 128 covers the pixel electrode 127 and the planarization layer 126, and the pixel definition layer 128 is patterned to form a pixel opening, and the pixel opening exposes part of the pixel electrode 127 to define out of the glowing area.
  • the structure of the driving circuit layer 12 of the present application is not limited to that shown in this embodiment, the driving circuit layer 12 of the present application may also include more or fewer film layers, and the positional relationship of each film layer is not limited to As shown in this embodiment, for example, the gate 123 may also be located under the active layer 121 to form a bottom gate structure.
  • the driving circuit layer 12 is used to provide a driving voltage to the light-emitting functional layer 13 to make the light-emitting functional layer 13 emit light.
  • the light-emitting functional layer 13 includes a light-emitting unit 131 and a cathode 132 .
  • the light-emitting unit 131 is formed by arranging light-emitting materials of different colors on the surface of the driving circuit layer 12.
  • the light-emitting materials of different colors emit light of different colors. For example, red light-emitting materials emit red light, and green light-emitting materials emit green light. light, the blue luminescent material emits blue light.
  • the cathode 132 covers the light-emitting unit 131, and the light-emitting unit 131 emits light under the joint action of the pixel electrode 127 and the cathode 132, and the light-emitting units 131 of different colors emit light of different colors, thereby realizing the display panel 100. full-color display.
  • the pixel electrode 127 can be a transparent electrode or a reflective electrode. If the pixel electrode 127 is a transparent electrode, the pixel electrode 127 can be made of, for example, indium tin oxide (ITO), indium zinc oxide (IZO), Formation of ZnO or In2O3. If the pixel electrode 127 is a reflective electrode, the pixel electrode 127 may include, for example, a reflective layer formed of Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr or a combination thereof and a reflective layer made of ITO , IZO, ZnO or In2O3 layer. However, the pixel electrode 127 is not limited thereto, and the pixel electrode 127 may be formed of various materials, and may also be formed in a single-layer or multi-layer structure.
  • ITO indium tin oxide
  • IZO indium zinc oxide
  • the pixel electrode 127 is a reflective electrode
  • the pixel electrode 127 may include, for example, a reflective layer formed
  • the pixel electrode 127 is a transparent electrode or a reflective electrode depends on the light emitting direction of the display panel 100.
  • the pixel electrode 127 can be a transparent electrode or a reflective electrode.
  • the electrodes of course, when reflective electrodes are used, the utilization rate of light emitted by the light emitting unit 131 can be improved; when the display panel 100 adopts bottom emission, the pixel electrodes 127 use transparent electrodes to increase the transmittance of light.
  • the display panel 100 adopts top emission as an example for illustration.
  • the cathode 132 needs to be formed of a transparent conductive material.
  • the cathode 132 may be formed of transparent conductive oxide (Transparent Conductive Oxide, TCO) such as ITO, IZO, ZnO or In2O3.
  • TCO Transparent Conductive Oxide
  • the light emitting functional layer 13 may also include a hole injection layer (HIL) and a hole transport layer (HTL) disposed between the light emitting unit 131 and the pixel electrode 127; An electron injection layer (EIL) and an electron transport layer (ETL) between the light emitting unit 131 and the cathode 132 .
  • HIL hole injection layer
  • HTL hole transport layer
  • EIL electron injection layer
  • ETL electron transport layer
  • the hole injection layer receives the holes transported by the pixel electrode 127, the holes are transported to the light-emitting unit 131 through the hole transport layer, the electron injection layer receives the electrons transported by the cathode 132, and the electrons are transported to the light-emitting unit 131 through the electron transport layer, and the holes and Electrons are combined at the position of the light-emitting unit 131 to generate excitons, and the excitons transition from the excited state to the ground state to release energy and emit light.
  • the encapsulation layer 14 covers the light-emitting functional layer 13 and is used to protect the light-emitting unit 131 of the light-emitting functional layer 13 and prevent the light-emitting unit 131 from failing due to intrusion of water and oxygen.
  • the encapsulation layer 14 can be encapsulated with a thin film, for example, the encapsulation layer 14 can be a laminated structure formed by sequentially stacking three layers of thin films of a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer or more Multilayer laminated structure.
  • the functional units 20 are directly prepared on the encapsulation layer 14, and the functional units 20 are arranged in an array on the encapsulation layer 14, and each column of the functional units 20 is regarded as a functional unit group, and a plurality of functional unit groups Arranged at intervals along the first direction X, each column of functional unit groups includes at least one functional unit 20 arranged along the second direction Y.
  • Each of the functional units 20 includes a plurality of intersecting touch electrode lines 21, and the plurality of intersecting touch electrode lines 21 makes the functional unit 20 have a mesh design, as shown in FIG. 4 4 is a schematic top view of the functional unit provided by the embodiment of the present application.
  • the mesh 22 refers to the opening area formed by the touch electrode traces 21, the mesh 22 is set corresponding to the light emitting unit 131 of the display component 10, so as to prevent the functional unit 20 from affecting the The light emitted by the light emitting unit 131.
  • the touch function structure of the display panel 100 will be described in detail below by taking the display panel 100 including 5 columns of functional unit groups, and each column of functional unit groups including 3 functional units 20 as an example:
  • the display panel 100 also includes a plurality of first signal transmission lines 30, each of the first signal transmission lines 30 is electrically connected to one of the functional units 20, and the first signal transmission lines 30 are on the same layer as the functional units 20 set up.
  • the "same layer setting" in this application means that in the preparation process, the film layer formed by the same material is patterned to obtain at least two different features, and the at least two different features are the same layer settings.
  • the functional unit 20 and the first signal transmission line 30 in this embodiment are obtained by patterning the same conductive film layer, then the functional unit 20 and the first signal transmission line 30 are arranged on the same layer.
  • the first signal transmission lines 30 of the functional unit groups in the same column are led out from the corresponding functional units 20 along the first direction X, and are connected between the functional unit group and its adjacent functional unit groups.
  • the inside of the gap extends toward the second direction Y.
  • the first signal transmission line 30 may also be drawn out from the functional unit 20 in a direction opposite to the first direction X, and extend toward the second direction Y.
  • the first signal transmission line 30 corresponding to the functional unit 20 may be disposed close to the non-display area NA.
  • the non-display area NA includes a plurality of frame areas, such as an upper frame area 1, a lower frame area 2, a left frame area 3 and a right frame area 4 as schematically shown in FIG. 1, wherein the lower frame area 2 is provided with Binding area BA, the binding area BA is located on one side of the display area AA, of course, the lower frame area 2 is also provided with a bending area BE, the bending area BE is located on the display area AA Between the binding area BA and the binding area BA, the lower frame area 2 can be bent to the side of the display component 10 away from the functional unit 20 by setting a bending area BE, so as to realize a narrow frame or no frame.
  • the lower frame area 2 can be bent to the side of the display component 10 away from the functional unit 20 by setting a bending area BE, so as to realize a narrow frame or no frame.
  • the binding area BA is bound with a driver chip 40, the driver chip 40 includes a touch driver chip 41 and a display driver chip 42, the touch driver chip 41 is connected to the first signal transmission line 30, etc., for Touch driving signals are provided, and the display driving chip 42 is connected to the data lines 1253 for providing display driving signals.
  • the driver chip 40 of the present application may also use a TDDI (Touch Display Driver Integrated) chip.
  • the TDDI chip refers to the integration of the touch driver chip 41 and the display driver chip 42, and the two share one chip. , so that the cost of the chip can be reduced.
  • the driving chip 40 in this application is defined as the touch driving chip 41 .
  • the driving chip 40 is electrically connected to the first signal transmission line 30 for transmitting a driving signal to the first signal transmission line 30 .
  • the driving chip 40 provides a driving voltage to the corresponding functional unit 20 through the first signal transmission line 30, and then the first signal transmission line 30 will transmit the sensing signal of the functional unit 20 back to the driving chip 40.
  • the sensing signal will change, so as to determine the touch position.
  • the drive chip 40 When the drive chip 40 provides drive signals to the functional units 20, it can generally adopt a row scan or column scan mode to provide the same drive signal for the functional units 20 in the same column or row, while for other columns or other rows of the functional units 20 provide different driving signals, such as grounding, voltage signals of different frequencies, and the like.
  • This application uses column scanning as an example to illustrate that the functional units 20 in different columns have different driving signals, so the first signal transmission lines 30 of the functional unit group in the same column have different driving signals from the functional units 20 in adjacent columns. drive signal.
  • the display panel 100 of the present application further includes a signal shielding line 50, and the signal shielding line 50 and The gap between two adjacent functional unit groups is set correspondingly, and is located between the first signal transmission line 30 of the same functional unit group and the functional unit 20 of the adjacent functional unit group.
  • the signal shielding line 50 is set on the same layer as the first signal transmission line 30, and the signal shielding line 50 is also electrically connected to the driving chip 40, and the driving chip 40 provides a driving signal to the signal shielding line 50 .
  • the driving signal on the signal shielding line 50 is the same as the driving signal on the corresponding first signal transmission line 30, so that there is no gap between the signal shielding line 50 and the corresponding first signal transmission line 30.
  • the driving signal on the signal shielding line 50 of the present application may also be different from the driving signal on the corresponding first signal transmission line 30, for example, the driving signal on the signal shielding line 50 is a constant voltage signal , and the interference of the constant voltage signal on the signal shielding line 50 to the first signal transmission line 30 is removed by the chip algorithm of the driving chip 40 .
  • the signal shielding line 50 extends from the driving chip 40 to the display area AA through the non-display area NA on the other side of the display area AA.
  • the signal shielding lines 50 can be divided into two groups, the first group of signal shielding lines 50 are led out from the drive chip 40 close to the left frame area 3, and pass through the non-display area NA in sequence.
  • the lower frame area 2, the left frame area 3 and the upper frame area 1 enter the display area AA, and extend toward the second direction Y in the display area AA;
  • the drive chip 40 of the right frame area 4 is drawn out, and enters the display area AA through the lower frame area 2, the right frame area 4 and the upper frame area 1 of the non-display area NA in sequence, and enters the display area AA in the display area.
  • the gaps between adjacent functional unit groups of the area AA extend toward the second direction Y.
  • the signal shielding wires 50 of the present application can also be arranged as a group, and the signal shielding wires 50 of this group go out from the left frame area 3 or the right frame area 4 of the non-display area NA, and extend to The entire display area AA.
  • the signal shielding line 50 is provided between every two adjacent functional unit groups, and the signal shielding line 50 extends from the display area AA to the The upper frame area 1, and converge to one or two places in the upper frame area 1, and when they converge to two places, the signal shielding line 50 in one of them extends from the upper frame area 1 to the left frame area 3,
  • the other signal shielding line 50 extends from the upper frame area 1 to the right frame area 4 and is connected to the corresponding driver chip 40 .
  • the display panel 100 of the present application further includes at least one signal monitoring line 60 , and the signal monitoring line 60 is arranged corresponding to the gap between two adjacent functional unit groups.
  • the signal monitoring line 60 is also arranged on the same layer as the first signal transmission line 30, and the signal monitoring line 60 is also electrically connected to the driving chip 40, and the driving chip 40 provides monitoring for the signal monitoring line 60.
  • the signal shielding line 50 can detect the interference from the display signal (such as the data line 1253, etc.) in the vertical direction in real time, and then the driver chip 40 detects the interference signal according to the signal monitoring line 60,
  • the part of the interference is removed by a chip algorithm, thereby further improving the touch performance of the display panel 100 .
  • the signal monitoring line 60 extends from the driving chip 40 to the display area AA through the non-display area NA on the other side of the display area AA. Specifically, two signal monitoring lines 60 can be set, and the first signal monitoring line 60 is led out from the driving chip 40, and passes through the lower frame area 2 and the left frame area of the non-display area NA in sequence.
  • the second signal monitoring line 60 is drawn out from the driving chip 40, and sequentially Enter the display area AA through the lower frame area 2, the right frame area 4 and the upper frame area 1 of the non-display area NA, and move toward the display area AA in the gap between the adjacent functional unit groups of the display area AA
  • the second direction Y extends. It can be understood that, the more the signal monitoring lines 60 are set, the more accurate the obtained interference signal data will be.
  • the signal monitoring line 60 is located on the side of the signal shielding line 50 away from the display area AA, while in the display area AA, the signal monitoring line 60 is close to
  • the middle area of the display area AA is set, specifically, the two signal monitoring lines 60 are respectively located on opposite sides of the same functional unit group, and are located between the same functional unit group and the adjacent signal shielding line. between the wires 50 to prevent the signal monitoring wire 60 from intersecting the signal shielding wire 50 , and make the signal monitoring wire 60 semi-enclose the corresponding signal shielding wire 50 .
  • the solution of this application to improve the poor touch performance caused by signal interference by setting the signal shielding line 50 and the signal monitoring line 60 is not limited to the DOT touch solution, for example, it can also be used in the plug-in In the touch solution, the plug-in touch solution refers to disposing the functional unit 20 on the touch panel, and then laminating the touch panel on the display component 10 .
  • FIG. 5 is another schematic top view of the display panel provided by the embodiment of the present application
  • FIG. 6 is another cross-section of the display panel provided by the embodiment of the present application. Schematic. Different from the above-mentioned embodiments, an insulating protective layer 70 is provided between the functional unit 20 of the display panel 101 and the first signal transmission line 30 , and the first signal transmission line 30 passes through the insulating protective layer 70 The first via hole 71 is electrically connected to the corresponding functional unit 20 .
  • the first signal transmission line 30 is disposed on the encapsulation layer 14 of the display component 10
  • the insulating protection layer 70 covers the first signal transmission line 30 and the encapsulation layer 14, and the functional unit 20 is disposed on the insulating protection layer 70 and connected to the corresponding first signal transmission line 30 through the first via hole 71 of the insulating protection layer 70 .
  • the material of the insulating protection layer 70 includes inorganic materials such as silicon oxide and silicon nitride, and the insulating protection layer 70 can protect the first signal transmission line 30 and prevent adjacent first signal transmission lines 30 from short circuit between.
  • the first signal transmission line 30 is electrically connected to the corresponding functional unit 20 through the first via hole 71, the number of the first via hole 71 is at least one, of course, a plurality of the first via holes are provided.
  • the hole 71 connects the first signal transmission line 30 to the corresponding functional unit 20, which can improve connection stability and reduce impedance.
  • the first signal transmission line 30 is set corresponding to the functional unit 20 , and the orthographic projection of the first signal transmission line 30 on the display component 10 falls on the functional unit 20 on the display component 10 within the range of the orthographic projection. More specifically, the first signal transmission line 30 is arranged corresponding to the touch electrode wiring 21 of the functional unit 20, so as to avoid the mesh 22 of the functional unit 20 and prevent the first signal transmission line 30 from affecting the The light emitted by the light emitting unit 131 .
  • the signal monitoring line 60 is set on the same layer as the first signal transmission line 30, and corresponds to the gap between two adjacent columns of the functional unit groups, so that the signal monitoring line 60 is placed on the display unit
  • the orthographic projection on 10 does not overlap with the orthographic projection of the functional unit 20 on the display component 10 .
  • the signal monitoring line 60 can be close to the display component 10 to better monitor the interference from the display signal in the display component 10 in real time, and at the same time, the signal monitoring line 60 can be connected to the first signal
  • the transmission line 30 is kept at a certain distance to prevent the signal monitoring line 60 from interfering with the first signal transmission line 30 .
  • the signal monitoring line 60 can also be arranged on the same layer as the functional unit 20 , which can also realize real-time monitoring of the interference from the display signal in the display component 10 .
  • the signal shielding line 50 includes a first sub-signal shielding line 51 and a second sub-signal shielding line electrically connected to the first sub-signal shielding line 51 through the third via hole 73 of the insulating protection layer 70 52 , the first sub-signal shielding line 51 is set on the same layer as the functional unit 20 , and the second sub-signal shielding line 52 is set on the same layer as the first signal transmission line 30 .
  • the first sub-signal shielding line 51 and the second sub-signal shielding line 52 have the same length, and the first sub-signal shielding line 51 and the second sub-signal shielding line
  • the signal shielding lines 52 are connected through the third via hole 73 , and the number of the third via hole 73 is at least one.
  • the signal shielding wire 50 adopts an upper and lower double-layer design, which can better shield the signal interference on the left and right sides, and the double-layer design is equivalent to increasing the thickness of the signal shielding wire 50, which can better block the influence of the potential difference.
  • the double-layer design can reduce the wiring impedance, so as to reduce the signal attenuation inside the signal shielding line 50 and ensure the shielding effect.
  • FIG. 7 is another schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present application.
  • the signal monitoring line 60 of the display panel 102 also adopts a double-layer design, specifically, the signal monitoring line 60 includes the first sub-signal monitoring line 61 and The second via hole 72 of 70 is electrically connected to the second sub-signal monitoring line 62 of the first sub-signal monitoring line 61, the first sub-signal monitoring line 61 is set on the same layer as the functional unit 20, and the second The second sub-signal monitoring line 62 is set on the same layer as the first signal transmission line 30 .
  • the above-mentioned embodiments which will not be repeated here.
  • the solution of this application to improve the poor touch performance caused by signal interference by setting the signal shielding line 50 and the signal monitoring line 60 is not limited to the self-capacitive touch solution listed in the above-mentioned embodiments. It can also be used in a single-layer mutual capacitive touch solution, which will not be repeated here.
  • the present application provides a display panel.
  • the display panel includes a display area and a non-display area surrounding the display area.
  • a plurality of functional unit groups are arranged at intervals along the first direction in the display area.
  • Each of the functional unit groups It includes at least one functional unit arranged along the second direction, each of the functional units is electrically connected to a first signal transmission line, and the first signal transmission line of the same functional unit group is connected to the adjacent functional unit group.
  • Signal shielding wires are arranged between the functional units, and the signal shielding wires are set corresponding to the gap between two adjacent functional unit groups, and the signal shielding wires can shield the functional units from the first
  • at least one signal monitoring line is provided corresponding to the gap between two adjacent functional unit groups, and the signal monitoring line can monitor the interference signal in real time, and remove the interference signal through the chip algorithm
  • the part interferes with the signal to improve the problem of poor touch performance caused by signal interference, thereby solving the problem of poor touch performance in the existing touch solution.

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Abstract

一种显示面板(100)，包括设置在显示区(AA)的多个功能单元组，每个功能单元组包括至少一功能单元(20)，每个功能单元(20)与一条第一信号传输线(30)电连接，同一功能单元组的第一信号传输线(30)与相邻功能单元组的功能单元(20)之间设置有信号屏蔽线(50)，以缓解现有触控方案中因信号干扰带来的触控性能不佳的问题。

Description

显示面板 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板。
 背景技术
柔性有机发光二极管(Organic Light Emitting Diode，OLED)显示器具有主动发光、可视角度大，色域宽、亮度高、响应速度快、低功耗以及结构上可弯曲等优点，越来越受到市场的欢迎。其中柔性有源矩阵有机发光二极管（Active Matrix Organic Light Emitting Diode，AMOLED）显示器的Oncell触控方案是把触控面板设置在OLED面板上，触控面板可采用自电容结构，也即自容式Oncell触控（Self Capacitance Direct Oncell Touch，S-DOT）方案。自电容结构包括多个独立的子触控电极，每个独立的子触控电极均单独通过触控导线引出，可以有效提高触控灵敏度等性能。然而该自容式触控方案中触控导线与相邻的子触控电极之间存在信号干扰，进而导致触控性能不佳。
 技术问题
本申请提供一种显示面板，以缓解现有触控方案中触控性能不佳的技术问题。
 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，其包括显示区以及围绕所述显示区的非显示区；所述显示面板还包括：
多个功能单元组，沿第一方向间隔排布在所述显示区，每个所述功能单元组包括至少一个沿第二方向排布的功能单元；
多条第一信号传输线，每条所述第一信号传输线与一个所述功能单元电连接；
信号屏蔽线，与相邻两个所述功能单元组之间的间隙对应设置，且位于同一所述功能单元组的所述第一信号传输线与相邻所述功能单元组的所述功能单元之间。
在本申请实施例提供的显示面板中，所述显示面板还包括至少一条信号监测线，所述信号监测线与相邻两个所述功能单元组之间的间隙对应设置。
在本申请实施例提供的显示面板中，所述信号屏蔽线上的驱动信号与对应的所述第一信号传输线上的驱动信号相同。
在本申请实施例提供的显示面板中，所述信号屏蔽线上的驱动信号为恒定的电压信号。
在本申请实施例提供的显示面板中，所述非显示区包括相对的上边框区和下边框区，以及连接所述上边框区和所述下边框区的左边框区和右边框区，所述信号屏蔽线从所述显示区延伸至所述上边框区，其中靠近所述左边框区的所述信号屏蔽线在所述上边框区连接在一起，并延伸至所述左边框区内；靠近所述右边框区的所述信号屏蔽线在所述上边框区连接在一起，并延伸至所述右边框区内。
在本申请实施例提供的显示面板中，所述信号监测线也从所述显示区延伸至所述上边框区，并从所述上边框区延伸至所述左边框区或所述右边框区，且在所述非显示区内，所述信号监测线位于所述信号屏蔽线远离所述显示区的一侧。
在本申请实施例提供的显示面板中，所述下边框区设置有绑定区，所述绑定区绑定有驱动芯片，所述第一信号传输线、所述信号屏蔽线以及所述信号监测线均与所述驱动芯片电连接，其中所述信号屏蔽线和所述信号监测线均从所述左边框区或所述右边框区延伸至所述下边框区与所述驱动芯片电连接，且所述左边框区内的所述信号屏蔽线和所述信号监测线与靠近所述左边框区的所述驱动芯片电连接，所述右边框区内的所述信号屏蔽线和所述信号监测线与靠近所述右边框区的所述驱动芯片电连接。
在本申请实施例提供的显示面板中，所述功能单元包括触控感应单元，用于实现所述显示面板的触控功能。
在本申请实施例提供的显示面板中，所述第一信号传输线、所述信号屏蔽线以及所述信号监测线均与所述功能单元同层设置。
在本申请实施例提供的显示面板中，所述功能单元与所述第一信号传输线之间设置有绝缘保护层，所述第一信号传输线通过所述绝缘保护层的第一过孔与对应的所述功能单元电连接。
在本申请实施例提供的显示面板中，所述信号监测线与所述第一信号传输线同层设置或者与所述功能单元同层设置。
在本申请实施例提供的显示面板中，所述信号监测线包括第一子信号监测线以及通过所述绝缘层保护层的第二过孔与所述第一子信号监测线电连接的第二子信号监测线，所述第一子信号监测线与所述功能单元同层设置，所述第二子信号监测线与所述第一信号传输线同层设置。
在本申请实施例提供的显示面板中，所述信号屏蔽线包括第一子信号屏蔽线以及通过所述绝缘层保护层的第三过孔与所述第一子信号屏蔽线电连接的第二子信号屏蔽线，所述第一子信号屏蔽线与所述功能单元同层设置，所述第二子信号屏蔽线与所述第一信号传输线同层设置。
 有益效果
本申请提供的显示面板包括显示区以及围绕所述显示区的非显示区，多个功能单元组沿第一方向间隔排布在所述显示区，每个所述功能单元组包括至少一个沿第二方向排布的功能单元，每个所述功能单元与一条第一信号传输线电连接，同一所述功能单元组的所述第一信号传输线与相邻所述功能单元组的所述功能单元之间设置有信号屏蔽线，且所述信号屏蔽线与相邻两个所述功能单元组之间的间隙对应设置，所述信号屏蔽线能够屏蔽所述功能单元对所述第一信号传输线的信号干扰，同时对应相邻两个所述功能单元组之间的间隙还设置有至少一条信号监测线，所述信号监测线可实时监测干扰信号，并就干扰信号通过芯片算法去除该部分干扰信号，以改善因信号干扰带来的触控性能不佳的问题，从而解决了现有触控方案中触控性能不佳的问题。
 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为本申请实施例提供的显示面板的一种俯视结构示意图。
图2为本申请实施例提供的显示面板的一种剖面结构示意图。
图3为图2中显示组件的细节结构示意图。
图4为本申请实施例提供的功能单元的俯视结构示意图。
图5为本申请实施例提供的显示面板的另一种俯视结构示意图。
图6为本申请实施例提供的显示面板的另一种剖面结构示意图。
图7为本申请实施例提供的显示面板的又一种剖面结构示意图。
 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。在附图中，为了清晰理解和便于描述，夸大了一些层和区域的厚度。即附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
请参照图1至图3，图1为本申请实施例提供的显示面板的一种俯视结构示意图，图2为本申请实施例提供的显示面板的一种剖面结构示意图，图3为图2中显示组件的细节结构示意图。所述显示面板100包括显示区AA以及围绕所述显示区AA的非显示区NA。所述显示面板100还包括显示组件10以及设置在所述显示组件10上的多个功能单元组，多个所述功能单元组沿第一方向X间隔排布在所述显示区AA，每个所述功能单元组包括至少一个沿第二方向Y排布的功能单元20。其中所述第一方向X为水平方向，所述第二方向Y为竖直方向，所述第一方向X和所述第二方向Y呈90度夹角，当然地，本申请不限于此，本申请的所述第一方向X和所述第二方向Y也可呈其他角度的夹角设置。
具体地，所述功能单元20阵列排布在所述显示组件10上，所述显示组件10用于实现所述显示面板100的显示功能，所述功能单元20用于实现指纹识别、触控等功能，比如用于实现指纹识别功能时，所述功能单元20为指纹传感器；用于实现触控功能时，所述功能单元20为触控感应单元。本申请以所述功能单元20为触控感应单元为例说明，且采用DOT（Direct Oncell Touch，触控功能直接制备在显示单元上）触控方案把所述功能单元20直接制备在所述显示组件10上，使所述显示面板100具有更好的集成度、透过率、耐弯折性能，且可以有效减小屏幕的厚度，降低产品成本。
具体地，所述显示组件10包括衬底11以及依次层叠设置在所述衬底11上的驱动电路层12、发光功能层13和封装层14，所述功能单元20直接制备在所述封装层14上。
可选地，所述衬底11可以为刚性基板或柔性基板；所述衬底11为刚性基板时，可包括玻璃基板等硬性基板；所述衬底11为柔性基板时，可包括聚酰亚胺（Polyimide，PI）薄膜、超薄玻璃薄膜等柔性基板，采用柔性基板作衬底11可以制作柔性显示面板，以实现显示面板100的弯折、卷曲等特殊性能。
可选地，所述衬底11和所述驱动电路层12之间还可设置缓冲层15，所述缓冲层15的材料可包括氧化硅（SiOx）、氮化硅（SiNx）、氮氧化硅（SiON）等无机材料，所述缓冲层15可以进一步防止不期望的杂质或污染物（例如湿气、氧气等）从所述衬底11扩散至可能因这些杂质或污染物而受损的器件中，同时还可以提供平坦的顶表面。
所述驱动电路层12包括依次层叠设置在所述缓冲层15上的有源层121、栅极绝缘层122、栅极123、层间绝缘层124、源漏极层125、平坦化层126、像素电极127以及像素定义层128，所述有源层121包括沟道区1211以及位于所述沟道区1211两侧的源极区1212和漏极区1213。所述栅极绝缘层122覆于所述有源层121及所述缓冲层15上，所述栅极123设置与所述栅极绝缘层122上，且所述栅极123与所述沟道区1211对应设置。
所述层间绝缘层124覆于所述栅极123以及所述栅极绝缘层122上，所述源漏极层125设置于所述层间绝缘层124上，所述源漏极层125图案化形成源极1251、漏极1252以及数据线1253等，所述源极1251通过所述层间绝缘层124的过孔与所述源极区1212连接，所述漏极1252通过所述层间绝缘层124的另一过孔与所述漏极区1213连接。
所述平坦化层126覆于所述源漏极层125以及所述层间绝缘层124上，设置所述平坦化层126可为所述显示面板100提供平坦的膜层表面，以提高制备发光功能层13的稳定性。所述像素电极127设置于所述平坦化层126上，并通过所述平坦化层126的过孔与所述源极1251或所述漏极1252连接，本申请以所述像素电极127与所述漏极1252连接为例说明。
所述像素定义层128覆于所述像素电极127以及所述平坦化层126上，所述像素定义层128图案化形成有像素开口，所述像素开口裸露出部分所述像素电极127，以定义出发光区域。
需要说明的是，本申请驱动电路层12的结构不限于本实施例示意的，本申请的驱动电路层12还可包括更多或更少的膜层，且各膜层的位置关系也不限于本实施例示意的，比如所述栅极123还可位于所述有源层121的下方，形成底栅结构。所述驱动电路层12用于给所述发光功能层13提供驱动电压，以使所述发光功能层13发光。
所述发光功能层13包括发光单元131以及阴极132。所述发光单元131是把不同颜色的发光材料整面设置在所述驱动电路层12的表面形成，不同颜色的发光材料发射不同颜色的光，比如红色发光材料发射红光，绿色发光材料发射绿光，蓝色发光材料发射蓝光。
所述阴极132覆盖所述发光单元131，所述发光单元131在所述像素电极127和所述阴极132的共同作用下发光，不同颜色的发光单元131发射不同颜色的光，进而实现显示面板100的全彩显示。
可选地，所述像素电极127可以是透明电极或反射电极，如果所述像素电极127是透明电极，则所述像素电极127可以由例如氧化铟锡(ITO)、氧化铟锌(IZO)、ZnO或In2O3 形成。如果所述像素电极127是反射电极，则所述像素电极127例如可以包括由Ag、Mg、Al、Pt、Pd、Au、Ni、Nd、Ir、Cr或它们的组合形成的反射层以及由 ITO、IZO、ZnO或In2O3形成的层。然而，像素电极127不限于此，像素电极127可以由各种材料形成，并且也可以形成为单层或多层结构。
需要说明的是，所述像素电极127具体是采用透明电极还是反射电极需取决于所述显示面板100的出光方向，当显示面板100采用顶发光时，所述像素电极127可以是透明电极或反射电极，当然地，采用反射电极时能够提高发光单元131发出光线的利用率；当显示面板100采用底发光时，所述像素电极127采用透明电极，以提高光线的透过率。本实施例以所述显示面板100采用顶发光为例说明，为了提高光线的透过率，所述阴极132需采用透明导电材料形成。例如所述阴极132可由ITO、IZO、ZnO或In2O3等透明导电氧化物（Transparent Conductive Oxide，TCO）形成。
可选地，所述发光功能层13还可包括设置于所述发光单元131与所述像素电极127之间的空穴注入层(HIL)、空穴传输层(HTL)；以及设置于所述发光单元131与所述阴极132之间的电子注入层(EIL)、电子传输层(ETL)。空穴注入层接收像素电极127传输的空穴，空穴经由空穴传输层传输至发光单元131，电子注入层接收阴极132传输的电子，电子经由电子传输层传输至发光单元131，空穴和电子在发光单元131位置结合后产生激子，激子由激发态跃迁至基态释放能量并发光。
所述封装层14覆盖所述发光功能层13，用于保护所述发光功能层13的发光单元131，避免水氧入侵导致发光单元131失效。可选地，所述封装层14可采用薄膜封装，比如所述封装层14可以为由第一无机封装层、有机封装层、第二无机封装层三层薄膜依次层叠形成的叠层结构或更多层的叠层结构。
所述功能单元20直接制备在所述封装层14上，且所述功能单元20阵列排布在所述封装层14上，每一列所述功能单元20作为一个功能单元组，多个功能单元组沿所述第一方向X间隔排布，每一列所述功能单元组至少包括一个沿所述第二方向Y排布的功能单元20。每一所述功能单元20均包括多条交叉设置的触控电极走线21，多条交叉设置的触控电极走线21使所述功能单元20呈网眼（mesh）状设计，如图4所示，图4为本申请实施例提供的功能单元的俯视结构示意图。其中所述网眼22是指由所述触控电极走线21围设形成的开孔区域，所述网眼22与所述显示组件10的发光单元131对应设置，以避免所述功能单元20影响所述发光单元131的出光。
下面将以所述显示面板100包括5列功能单元组，每列功能单元组包括3个功能单元20为例具体阐述所述显示面板100的触控功能结构：
五列所述功能单元组沿第一方向X间隔排布，每列所述功能单元组的三个功能单元20沿第二方向Y间隔排布。所述显示面板100还包括多条第一信号传输线30，每条所述第一信号传输线30与一个所述功能单元20电连接，且所述第一信号传输线30与所述功能单元20同层设置。需要说明的是，本申请中的“同层设置”是指在制备工艺中，将相同材料形成的膜层进行图案化处理得到至少两个不同的特征，则所述至少两个不同的特征同层设置。比如，本实施例的所述功能单元20与所述第一信号传输线30由同一导电膜层进行图案化处理后得到，则所述功能单元20与所述第一信号传输线30同层设置。
同一列所述功能单元组的所述第一信号传输线30沿所述第一方向X从对应的所述功能单元20引出，并在该所述功能单元组与其相邻的功能单元组之间的间隙内朝所述第二方向Y延伸。可以理解的是，所述第一信号传输线30也可沿与所述第一方向X相反的方向从所述功能单元20引出，并朝所述第二方向Y延伸。而对于靠近所述非显示区NA的一列所述功能单元组，所述功能单元20对应的所述第一信号传输线30靠近所述非显示区NA设置即可。
所述非显示区NA包括多个边框区，如图1示意性示出的上边框区1、下边框区2、左边框区3以及右边框区4，其中在所述下边框区2设置有绑定区BA，所述绑定区BA位于所述显示区AA的一侧，当然地，所述下边框区2还设置有弯折区BE，所述弯折区BE位于所述显示区AA和所述绑定区BA之间，通过设置弯折区BE能够把所述下边框区2弯折到所述显示组件10远离所述功能单元20的一侧，以实现窄边框或无边框。所述绑定区BA绑定有驱动芯片40，所述驱动芯片40包括触控驱动芯片41和显示驱动芯片42，所述触控驱动芯片41与所述第一信号传输线30等连接，用于提供触控驱动信号，所述显示驱动芯片42与所述数据线1253等连接，用于提供显示驱动信号。当然地，本申请的驱动芯片40也可采用TDDI（Touch Display Driver Integrated，触控显示驱动集成）芯片，TDDI芯片是指触控驱动芯片41和显示驱动芯片42集成在一块，两者共用一个芯片，以此可以降低芯片的成本。
需要说明的是，本申请在没有特别指出所述驱动芯片40的类型时，本申请的所述驱动芯片40均以所述触控驱动芯片41释义。所述驱动芯片40与所述第一信号传输线30电连接，用于给所述第一信号传输线30传输驱动信号。所述驱动芯片40通过所述第一信号传输线30提供驱动电压给对应的所述功能单元20，然后所述第一信号传输线30会把所述功能单元20的感应信号传回给所述驱动芯片40，在此期间所述功能单元20如果受到例如手指、触控笔等的触摸，感应信号会发生变化，以此来判断触摸位置。
而所述驱动芯片40在给所述功能单元20提供驱动信号时，通常可采用行扫描或列扫描方式，针对同一列或同一行的所述功能单元20提供同一种驱动信号，而针对其他列或其他行的所述功能单元20提供不同的驱动信号，比如接地、不同频率的电压信号等。本申请以采用列扫描为例说明，不同列的所述功能单元20具有不同的驱动信号，如此同一列所述功能单组的所述第一信号传输线30与相邻列的功能单元20具有不同的驱动信号。
为了避免相邻两列所述功能单元组由于驱动信号不同导致的对所述第一信号传输线30的干扰，本申请的所述显示面板100还包括信号屏蔽线50，所述信号屏蔽线50与相邻两个所述功能单元组之间的间隙对应设置，且位于同一所述功能单元组的所述第一信号传输线30与相邻所述功能单元组的所述功能单元20之间。所述信号屏蔽线50与所述第一信号传输线30同层设置，且所述信号屏蔽线50也与所述驱动芯片40电连接，所述驱动芯片40给所述信号屏蔽线50提供驱动信号。
可选地，所述信号屏蔽线50上的驱动信号与对应的所述第一信号传输线30上的驱动信号相同，如此所述信号屏蔽线50与对应的所述第一信号传输线30之间不存在电势差，不会对所述第一信号传输线30造成干扰，而且还能够屏蔽相邻列的功能单元20对所述第一信号传输线30的干扰，提高所述显示面板100的触控性能。当然地，本申请的所述信号屏蔽线50上的驱动信号也可与对应的所述第一信号传输线30上的驱动信号不同，比如所述信号屏蔽线50上的驱动信号为恒定的电压信号，并通过所述驱动芯片40的芯片算法去除所述信号屏蔽线50上恒定的电压信号对所述第一信号传输线30的干扰。
所述信号屏蔽线50由所述驱动芯片40并经过所述显示区AA其他侧的所述非显示区NA延伸至所述显示区AA。具体地，所述信号屏蔽线50可分为两组，第一组所述信号屏蔽线50从靠近所述左边框区3的所述驱动芯片40引出，并依次经过所述非显示区NA的下边框区2、左边框区3以及上边框区1进入所述显示区AA，并在所述显示区AA内朝着所述第二方向Y延伸；第二组所述信号屏蔽线50从靠近所述右边框区4的所述驱动芯片40引出，并依次经过所述非显示区NA的下边框区2、右边框区4以及上边框区1进入所述显示区AA，并在所述显示区AA的相邻的功能单元组之间的间隙内朝着所述第二方向Y延伸。当然地，本申请的所述信号屏蔽线50也可设置为一组，该一组所述信号屏蔽线50从所述非显示区NA的左边框区3或者右边框区4出线，并延伸至整个所述显示区AA。
更具体地，为了实现良好的屏蔽效果，每相邻的两个所述功能单元组之间均设有所述信号屏蔽线50，所述信号屏蔽线50从所述显示区AA延伸至所述上边框区1，并在所述上边框区1汇合至一处或两处，当汇合至两处时，其中一处的所述信号屏蔽线50从上边框区1向左边框区3延伸，另一处的所述信号屏蔽线50从上边框区1向右边框区4延伸，并与对应的驱动芯片40连接。
另外，本申请的所述显示面板100还包括至少一条信号监测线60，所述信号监测线60与相邻两个所述功能单元组之间的间隙对应设置。所述信号监测线60也与所述第一信号传输线30同层设置，且所述信号监测线60还与所述驱动芯片40电连接，所述驱动芯片40给所述信号监测线60提供监测信号，使得所述信号屏蔽线50能够实时侦测垂直方向上来自于显示信号（如数据线1253等）的干扰，然后所述驱动芯片40根据所述信号监测线60侦测到的干扰信号，通过芯片算法去除该部分干扰，从而进一步提高所述显示面板100的触控性能。
所述信号监测线60由所述驱动芯片40并经过所述显示区AA其他侧的所述非显示区NA延伸至所述显示区AA。具体地，所述信号监测线60可设置为两条，第一条所述信号监测线60从所述驱动芯片40引出，并依次经过所述非显示区NA的下边框区2、左边框区3以及上边框区1进入所述显示区AA，并在所述显示区AA内朝着所述第二方向Y延伸；第二条所述信号监测线60从所述驱动芯片40引出，并依次经过所述非显示区NA的下边框区2、右边框区4以及上边框区1进入所述显示区AA，并在所述显示区AA的相邻的功能单元组之间的间隙内朝着所述第二方向Y延伸。可以理解的是，所述信号监测线60设置的条数越多，获得的干扰信号数据越准确。另外，在所述非显示区NA内，所述信号监测线60位于所述信号屏蔽线50远离所述显示区AA的一侧，而在所述显示区AA内，所述信号监测线60靠近所述显示区AA的中间区域设置，具体地，两条所述信号监测线60分别位于同一所述功能单元组的相对两侧，且位于同一所述功能单元组与相邻的所述信号屏蔽线50之间，以避免所述信号监测线60与所述信号屏蔽线50交叉，且使得所述信号监测线60半包围对应的所述信号屏蔽线50。
另外，需要说明的是，本申请通过设置信号屏蔽线50以及信号监测线60以改善信号干扰导致的触控性能不佳的方案不限于使用在DOT触控方案中，比如还可使用在外挂式触控方案中，外挂式触控方案是指把所述功能单元20设置在触控面板上，然后把所述触控面板贴合在所述显示组件10上。
在一种实施例中，请参照图5和图6，图5为本申请实施例提供的显示面板的另一种俯视结构示意图，图6为本申请实施例提供的显示面板的另一种剖面结构示意图。与上述实施例不同的是，所述显示面板101的所述功能单元20与所述第一信号传输线30之间设置有绝缘保护层70，所述第一信号传输线30通过所述绝缘保护层70的第一过孔71与对应的所述功能单元20电连接。具体地，所述第一信号传输线30设置于所述显示组件10的封装层14上，所述绝缘保护层70覆于所述第一信号传输线30以及所述封装层14上，所述功能单元20设置在所述绝缘保护层70上，并通过所述绝缘保护层70的第一过孔71与对应的所述第一信号传输线30连接。
可选地，所述绝缘保护层70的材料包括氧化硅、氮化硅等无机材料，所述绝缘保护层70能够保护所述第一信号传输线30，避免相邻的所述第一信号传输线30之间短路。所述第一信号传输线30通过所述第一过孔71与对应的所述功能单元20电连接，所述第一过孔71的数量至少为一个，当然地，设置多个所述第一过孔71使所述第一信号传输线30与对应的所述功能单元20连接，能够提高连接的稳定性，且降低阻抗。
另外，所述第一信号传输线30与所述功能单元20对应设置，且所述第一信号传输线30在所述显示组件10上的正投影落在所述功能单元20在所述显示组件10上的正投影的范围内。更具体地，所述第一信号传输线30与所述功能单元20的触控电极走线21对应设置，以避开所述功能单元20的网眼22，避免所述第一信号传输线30影响所述发光单元131的出光。
进一步地，所述信号监测线60与所述第一信号传输线30同层设置，且对应于相邻两列所述功能单元组之间的间隙，使得所述信号监测线60在所述显示组件10上的正投影与所述功能单元20在所述显示组件10上的正投影没有重叠。如此可使得所述信号监测线60靠近所述显示组件10，以更好的实时监测来自所述显示组件10内显示信号的干扰，同时还可使所述信号监测线60与所述第一信号传输线30保持一定距离，避免所述信号监测线60对所述第一信号传输线30产生干扰。当然地，所述信号监测线60也可与所述功能单元20同层设置，也同样能够实现实时监测来自所述显示组件10内显示信号的干扰。
进一步地，所述信号屏蔽线50包括第一子信号屏蔽线51以及通过所述绝缘保护层70的第三过孔73与所述第一子信号屏蔽线51电连接的第二子信号屏蔽线52，所述第一子信号屏蔽线51与所述功能单元20同层设置，所述第二子信号屏蔽线52与所述第一信号传输线30同层设置。可选地，在所述显示区AA内，所述第一子信号屏蔽线51与所述第二子信号屏蔽线52的长度相同，所述第一子信号屏蔽线51与所述第二子信号屏蔽线52之间通过所述第三过孔73连接，所述第三过孔73的数量至少为一个。如此所述信号屏蔽线50采用上下两层设计，能够更好的屏蔽左右两侧的信号干扰，而且双层设计等效于增加信号屏蔽线50的厚度，能更好的阻挡电势差的影响，同时双层设计可以降低走线阻抗，以降低信号屏蔽线50内部的信号衰减，确保屏蔽效果。其他说明请参照上述实施例，在此不再赘述。
在一种实施例中，请参照图7，图7为本申请实施例提供的显示面板的又一种剖面结构示意图。与上述实施例不同的是，所述显示面板102的所述信号监测线60也采双层设计，具体地，所述信号监测线60包括第一子信号监测线61以及通过所述绝缘保护层70的第二过孔72与所述第一子信号监测线61电连接的第二子信号监测线62，所述第一子信号监测线61与所述功能单元20同层设置，所述第二子信号监测线62与所述第一信号传输线30同层设置。其他说明请参照上述实施例，在此不再赘述。
另外，需要说明的是，本申请通过设置信号屏蔽线50以及信号监测线60以改善信号干扰导致的触控性能不佳的方案不限于使用在上述实施例列举的自容式触控方案中，其还可使用在单层互容式触控方案中，在此不在赘述。
根据上述实施例可知：
本申请提供一种显示面板，该显示面板包括显示区以及围绕所述显示区的非显示区，多个功能单元组沿第一方向间隔排布在所述显示区，每个所述功能单元组包括至少一个沿第二方向排布的功能单元，每个所述功能单元与一条第一信号传输线电连接，同一所述功能单元组的所述第一信号传输线与相邻所述功能单元组的所述功能单元之间设置有信号屏蔽线，且所述信号屏蔽线与相邻两个所述功能单元组之间的间隙对应设置，所述信号屏蔽线能够屏蔽所述功能单元对所述第一信号传输线的信号干扰，同时对应相邻两个所述功能单元组之间的间隙还设置有至少一条信号监测线，所述信号监测线可实时监测干扰信号，并就干扰信号通过芯片算法去除该部分干扰信号，以改善因信号干扰带来的触控性能不佳的问题，从而解决了现有触控方案中触控性能不佳的问题。
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 (18)

  1. 一种显示面板，其包括：显示区以及围绕所述显示区的非显示区；
    所述显示面板还包括：
    多个功能单元组，沿第一方向间隔排布在所述显示区，每个所述功能单元组包括至少一个沿第二方向排布的功能单元；
    多条第一信号传输线，每条所述第一信号传输线与一个所述功能单元电连接；
    信号屏蔽线，与相邻两个所述功能单元组之间的间隙对应设置，且位于同一所述功能单元组的所述第一信号传输线与相邻所述功能单元组的所述功能单元之间。
  2. 根据权利要求1所述的显示面板，其中，所述显示面板还包括：
    至少一条信号监测线，与相邻两个所述功能单元组之间的间隙对应设置。
  3. 根据权利要求2所述的显示面板，其中，所述信号屏蔽线上的驱动信号与对应的所述第一信号传输线上的驱动信号相同。
  4. 根据权利要求2所述的显示面板，其中，所述信号屏蔽线上的驱动信号为恒定的电压信号。
  5. 根据权利要求2所述的显示面板，其中，所述非显示区包括相对的上边框区和下边框区，以及连接所述上边框区和所述下边框区的左边框区和右边框区；
    所述信号屏蔽线从所述显示区延伸至所述上边框区，其中靠近所述左边框区的所述信号屏蔽线在所述上边框区连接在一起，并延伸至所述左边框区；靠近所述右边框区的所述信号屏蔽线在所述上边框区连接在一起，并延伸至所述右边框区。
  6. 根据权利要求5所述的显示面板，其中，所述信号监测线也从所述显示区延伸至所述上边框区，并从所述上边框区延伸至所述左边框区或所述右边框区，且在所述非显示区内，所述信号监测线位于所述信号屏蔽线远离所述显示区的一侧。
  7. 根据权利要求6所述的显示面板，其中，每相邻的两个所述功能单元组之间均设有所述信号屏蔽线，所述信号屏蔽线在所述上边框区汇合，并朝所述左边框区或所述右边框区走线。
  8. 根据权利要求7所述的显示面板，其中，所述信号监测线的数量为二，两条所述信号监测线分别位于同一所述功能单元组的相对两侧，且位于同一所述功能单元组与相邻的所述信号屏蔽线之间。
  9. 根据权利要求8所述的显示面板，其中，所述下边框区包括绑定区，所述绑定区绑定有驱动芯片，所述第一信号传输线、所述信号屏蔽线以及所述信号监测线均与所述驱动芯片电连接，其中所述信号屏蔽线和所述信号监测线均从所述左边框区或所述右边框区延伸至所述下边框区，并与所述驱动芯片电连接，且所述左边框区的所述信号屏蔽线和所述信号监测线与靠近所述左边框区的所述驱动芯片电连接，所述右边框区的所述信号屏蔽线和所述信号监测线与靠近所述右边框区的所述驱动芯片电连接。
  10. 根据权利要求1所述的显示面板，其中，所述功能单元包括触控感应单元，用于实现所述显示面板的触控功能。
  11. 根据权利要求1所述的显示面板，其中，所述第一信号传输线、所述信号屏蔽线以及所述信号监测线均与所述功能单元同层设置。
  12. 根据权利要求1所述的显示面板，其中，所述功能单元与所述第一信号传输线之间设置有绝缘保护层，所述第一信号传输线通过所述绝缘保护层的第一过孔与对应的所述功能单元电连接。
  13. 根据权利要求12所述的显示面板，其中，所述功能单元包括多条触控电极走线，多条所述触控电极走线围设形成多个开孔区域，所述第一信号传输线与所述触控电极走线对应设置。
  14. 根据权利要求12所述的显示面板，其中，所述信号监测线与所述第一信号传输线同层设置或者与所述功能单元同层设置。
  15. 根据权利要求12所述的显示面板，其中，所述信号监测线包括第一子信号监测线以及通过所述绝缘层保护层的第二过孔与所述第一子信号监测线电连接的第二子信号监测线，所述第一子信号监测线与所述功能单元同层设置，所述第二子信号监测线与所述第一信号传输线同层设置。
  16. 根据权利要求12所述的显示面板，其中，所述信号屏蔽线包括第一子信号屏蔽线以及通过所述绝缘层保护层的第三过孔与所述第一子信号屏蔽线电连接的第二子信号屏蔽线，所述第一子信号屏蔽线与所述功能单元同层设置，所述第二子信号屏蔽线与所述第一信号传输线同层设置。
  17. 根据权利要求16所述的显示面板，其中，在所述显示区，所述第一子信号屏蔽线与所述第二子信号屏蔽线的长度相同。
  18. 根据权利要求16所述的显示面板，其中，所述第三过孔的数量至少为一个。
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