WO2021159611A1 - 一种显示装置 - Google Patents

一种显示装置 Download PDF

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Publication number
WO2021159611A1
WO2021159611A1 PCT/CN2020/087441 CN2020087441W WO2021159611A1 WO 2021159611 A1 WO2021159611 A1 WO 2021159611A1 CN 2020087441 W CN2020087441 W CN 2020087441W WO 2021159611 A1 WO2021159611 A1 WO 2021159611A1
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WO
WIPO (PCT)
Prior art keywords
signal line
layer
induction
induction coil
touch
Prior art date
Application number
PCT/CN2020/087441
Other languages
English (en)
French (fr)
Inventor
胡冬雪
何忠操
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 US17/266,649 priority Critical patent/US11402962B2/en
Publication of WO2021159611A1 publication Critical patent/WO2021159611A1/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
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic 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
    • 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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • 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
    • 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
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • 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
    • G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection

Definitions

  • This application relates to the field of display technology, and in particular to a display device.
  • Electromagnetic screen refers to the use of electromagnetic induction technology (Electromagnetic Resonance), an electromagnetic touch screen that can be used with an electromagnetic pen to experiment with precise touch and original handwriting.
  • electromagnetic induction technology Electromagnetic Resonance
  • the electromagnetic pen When the electromagnetic pen approaches the electromagnetic screen, it will cause the induction coils of the electromagnetic screen in the horizontal and vertical directions to generate induced current, thereby obtaining the position information of the electromagnetic pen.
  • the existing electromagnetic screens are generally placed on the back of the display module as an independent touch device in an externally-hung manner, resulting in a larger overall thickness of the display module.
  • the embodiment of the present application provides a display device to solve the problem that the existing electromagnetic screen is generally placed on the back of the display module as an independent touch device in an externally mounted manner, resulting in a large overall thickness of the display module. technical problem.
  • the present application provides a display device, which includes:
  • An encapsulation layer provided on the array substrate;
  • a touch control layer disposed on a side of the packaging layer away from the array substrate;
  • an electromagnetic induction layer is provided in the touch control layer, the electromagnetic induction layer includes a plurality of induction coils, a first end of the induction coil is electrically connected to a first signal line, and a second end of the induction coil is electrically connected to a first signal line. The second signal line is electrically connected.
  • the electromagnetic induction layer includes:
  • a plurality of first induction coils arranged on the encapsulation layer, the plurality of first induction coils extending along a first direction and arranged at intervals in a second direction;
  • a plurality of second induction coils are arranged on a side of the first insulating layer away from the first touch layer, and the plurality of second induction coils extend along the second direction and are arranged at intervals in the first direction.
  • the touch layer includes a plurality of first touch driving electrodes disposed on the encapsulation layer and a plurality of second touch driving electrodes disposed on the first insulating layer;
  • a plurality of the first touch drive electrodes extend along a first direction and are arranged at intervals in a second direction, and the first induction coils correspond to the first touch drive electrodes one-to-one and surround the first touch drive electrodes.
  • the driving electrodes are arranged; a plurality of the second touch driving electrodes extend along the second direction and are arranged at intervals in the first direction, and the second induction coils correspond to the second touch driving electrodes one-to-one and surround the The second touch driving electrode is arranged.
  • the array substrate includes a plurality of sub-pixels distributed in an array; both the first touch drive electrode and the second touch drive electrode include a grid structure, and the grid of the grid structure The orthographic projections of the holes on the array substrate correspond one-to-one to the sub-pixels.
  • the first signal line includes a first reference voltage signal line provided on the same layer as the first induction coil and a second reference voltage signal line provided on the same layer as the second induction coil;
  • the second signal line includes a first electromagnetic signal line provided on the same layer as the first induction coil and a second electromagnetic signal line provided on the same layer as the second induction coil.
  • a plurality of the induction coil arrays are distributed on the packaging layer, and the induction coils are multiplexed as a third touch driving electrode.
  • the whole of the induction coil is spiral.
  • the first signal line and the induction coil are arranged on the same layer, and the first signal line is electrically connected to the terminal of the induction coil; the electromagnetic induction layer further includes covering the induction coil and The second insulating layer of the first signal line, the second signal line is disposed on the second insulating layer, and the second signal line passes through a via hole penetrating the second insulating layer and the induction coil The beginning of the electrical connection.
  • the first signal line is arranged along the first direction or the second direction, and the first signal line is located at the gap area between two adjacent rows of the induction coils or two adjacent rows of the induction coils. At the gap area of the coil.
  • the second signal line is arranged in parallel with the first signal line.
  • the present application also provides a display device, which includes:
  • An array substrate, the array substrate is a flexible substrate or a rigid substrate;
  • An encapsulation layer provided on the array substrate;
  • a touch control layer disposed on a side of the packaging layer away from the array substrate;
  • an electromagnetic induction layer is provided in the touch control layer, the electromagnetic induction layer includes a plurality of induction coils, a first end of the induction coil is electrically connected to a first signal line, and a second end of the induction coil is electrically connected to a first signal line. The second signal line is electrically connected.
  • the electromagnetic induction layer includes:
  • a plurality of first induction coils arranged on the encapsulation layer, the plurality of first induction coils extending along a first direction and arranged at intervals in a second direction;
  • a plurality of second induction coils are arranged on a side of the first insulating layer away from the first touch layer, and the plurality of second induction coils extend along the second direction and are arranged at intervals in the first direction.
  • the touch layer includes a plurality of first touch driving electrodes disposed on the encapsulation layer and a plurality of second touch driving electrodes disposed on the first insulating layer;
  • a plurality of the first touch drive electrodes extend along a first direction and are arranged at intervals in a second direction, and the first induction coils correspond to the first touch drive electrodes one-to-one and surround the first touch drive electrodes.
  • the driving electrodes are arranged; a plurality of the second touch driving electrodes extend along the second direction and are arranged at intervals in the first direction, and the second induction coils correspond to the second touch driving electrodes one-to-one and surround the The second touch driving electrode is arranged.
  • the array substrate includes a plurality of sub-pixels distributed in an array; both the first touch drive electrode and the second touch drive electrode include a grid structure, and the grid of the grid structure The orthographic projections of the holes on the array substrate correspond one-to-one to the sub-pixels.
  • the first signal line includes a first reference voltage signal line provided on the same layer as the first induction coil and a second reference voltage signal line provided on the same layer as the second induction coil;
  • the second signal line includes a first electromagnetic signal line provided on the same layer as the first induction coil and a second electromagnetic signal line provided on the same layer as the second induction coil.
  • a plurality of the induction coil arrays are distributed on the packaging layer, and the induction coils are multiplexed as a third touch driving electrode.
  • the whole of the induction coil is spiral.
  • the first signal line and the induction coil are arranged on the same layer, and the first signal line is electrically connected to the terminal of the induction coil; the electromagnetic induction layer further includes covering the induction coil and The second insulating layer of the first signal line, the second signal line is disposed on the second insulating layer, and the second signal line passes through a via hole penetrating the second insulating layer and the induction coil The beginning of the electrical connection.
  • the first signal line is arranged along the first direction or the second direction, and the first signal line is located at the gap area between two adjacent rows of the induction coils or two adjacent rows of the induction coils. At the gap area of the coil.
  • the second signal line is arranged in parallel with the first signal line.
  • the first signal line and the second signal line form an electrical circuit with the induction coil.
  • the electromagnetic pen When the electromagnetic pen approaches the area corresponding to the induction coil on the display, it will cause the induction coil to generate an induced current to obtain the position information of the electromagnetic pen.
  • the electromagnetic induction layer is integrated in the touch layer, so that the touch layer has electromagnetic induction function at the same time, replacing the external electromagnetic screen module, realizing the function integration of the electromagnetic screen and the capacitive screen, and reducing the overall thickness of the display device.
  • FIG. 1 is a schematic diagram of the structure of a display device in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of the touch layer in the first embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a planar structure of a touch layer in Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of the structure of the first touch driving electrode in the first embodiment of the present invention.
  • FIG. 5 to 7 are schematic diagrams of the preparation process of the touch layer in Embodiment 1 of the present invention.
  • FIG. 8 is a schematic diagram of the planar structure of the electromagnetic induction layer in the second embodiment of the present invention.
  • 9 to 11 are schematic diagrams of the preparation process of the electromagnetic induction layer in the second embodiment of the present invention.
  • the present invention aims at the existing electromagnetic screens which are generally used as independent touch devices to be placed on the back of the OLED display module in an externally mounted manner, which leads to the technical problem that the overall thickness of the OLED display module is relatively large.
  • a display device as shown in FIG. 1, the display device includes an array substrate 10, an encapsulation layer 20 disposed on the array substrate 10, and a side of the encapsulation layer 20 away from the array substrate 10 ⁇ touch layer 30.
  • the display device may be an OLED display device
  • the array substrate 10 may be a flexible substrate or a rigid substrate
  • the encapsulation layer 20 may be a laminated structure in which an organic layer, an inorganic layer, and an organic layer are overlapped.
  • the touch layer 30 is a capacitive touch layer 30.
  • the touch layer 30 is provided with an electromagnetic induction layer
  • the electromagnetic induction layer includes a plurality of induction coils 41, and the first end of the induction coil 41 and the first The signal line 51 is electrically connected, and the second end of the induction coil 41 is electrically connected to the second signal line 52.
  • one of the first signal line 51 and the second signal line 52 is grounded or connected to a low-potential reference signal line, and the other one outputs an electromagnetic induction signal for electromagnetic signal measurement.
  • the display device further includes an electromagnetic pen matched with the electromagnetic induction layer.
  • the first signal line 51 and the second signal line 52 and the induction coil 41 form an electrical circuit.
  • the induction coil 41 will cause the induction current to be generated, thereby obtaining the electromagnetic pen’s Position information, and the electromagnetic induction layer is integrated into the touch layer 30 at the same time, replacing the external electromagnetic screen module, thereby realizing the functional integration of the electromagnetic screen and the capacitive screen, and reducing the overall thickness of the display device.
  • the electromagnetic induction layer includes a plurality of first induction coils 411 arranged on the encapsulation layer 20, a first insulating layer 61 covering the first induction coils 411, and, arranged on the first insulating layer.
  • the multiple second induction coils 412 on the side of the layer 61 away from the first touch layer 30.
  • the first insulating layer 61 may be made of inorganic materials such as silicon nitride and silicon oxide, or organic materials such as optical glue.
  • the plurality of first induction coils 411 extend along the first direction and are arranged at intervals in the second direction
  • the plurality of second induction coils 412 extend along the second direction and are arranged at intervals in the first direction.
  • first direction and the second direction may be directions perpendicular to each other, for example, the first direction is a horizontal direction, and the second direction is a longitudinal direction (as shown in FIG. 3).
  • the induction coils 41 along the first direction and the second direction in the touch layer 30 will generate induced currents, so that accurate position information of the electromagnetic pen can be obtained.
  • the touch layer 30 includes a plurality of first touch driving electrodes 31 disposed on the encapsulation layer 20 and a plurality of second touch driving electrodes 32 disposed on the first insulating layer 61.
  • a plurality of the first touch drive electrodes 31 extend along a first direction and are arranged at intervals in a second direction, and the first induction coils 411 correspond to the first touch drive electrodes 31 one-to-one and surround all of them.
  • the first touch driving electrode 31 is provided.
  • a plurality of the second touch drive electrodes 32 extend along the second direction and are arranged at intervals in the first direction, and the second induction coils 412 correspond to the second touch drive electrodes 32 one-to-one and surround all of them.
  • the second touch driving electrode 32 is provided.
  • the touch layer 30 is a mutually soluble touch layer 30, and each of the first touch driving electrodes 31 and each of the second touch driving electrodes 32 is connected to at least one metal connection line, The connecting wire is used to output touch signals.
  • the capacitance between the first touch drive electrode 31 and the second touch drive electrode 32 changes, and the touch point is determined according to the capacitance change point, thereby realizing the touch function.
  • first induction coil 411 is arranged around the first touch drive electrode 31, and the second induction coil 412 is arranged around the second touch drive electrode 32, so that the induction coil 41 is integrated between the adjacent touch electrodes.
  • the electromagnetic induction layer is integrated into the touch layer 30, the vacant area is reasonably used, and the area occupied by the induction coil 41 is reduced.
  • the first signal line 51 includes a first reference voltage signal line 511 provided on the same layer as the first induction coil 411 and a second reference voltage signal line 512 provided on the same layer as the second induction coil 412
  • the second signal line 52 includes a first electromagnetic signal line 521 provided on the same layer as the first induction coil 411 and a second electromagnetic signal line 522 provided on the same layer as the second induction coil 412.
  • the first signal line 51 is a reference signal line connected to ground or a low potential
  • the second signal line 52 outputs an electromagnetic induction signal for electromagnetic signal measurement.
  • the array substrate 10 includes a display area and a frame area around the display area.
  • the first signal line 51 and the second signal line 52 are both disposed in the area corresponding to the frame area on the touch layer 30, thereby avoiding The first signal line 51 and the second signal line 52 block the light from the display area.
  • the electromagnetic induction layer further includes a first protective layer 71 covering the second induction coil 412 and the second touch driving electrode 32.
  • the array substrate 10 includes a plurality of sub-pixels distributed in an array, and the sub-pixels are located in the display area; the first touch drive electrode 31 and the second touch drive The electrodes 32 each include a grid-like structure, and the orthographic projections of the meshes of the grid-like structure on the array substrate 10 correspond to the sub-pixels in a one-to-one correspondence.
  • the preparation materials of the first touch drive electrode 31 and the second touch drive electrode 32 include but are not limited to one or more of molybdenum, aluminum, titanium, molybdenum alloy, aluminum alloy, and titanium alloy.
  • a touch driving electrode 31 and a second touch driving electrode 32 adopt a metal mesh structure, so as to prevent the first touch driving electrode 31 and the second touch driving electrode 32 from blocking the light from the sub-pixel area.
  • FIGS. 5 to 7 are schematic diagrams of the preparation process of the touch layer 30 in the first embodiment.
  • a first touch driving electrode 31 and a first induction coil 411 arranged along a first direction are formed on the encapsulation layer 20, and the first induction coil 411 is arranged around the first touch driving electrode 31.
  • a first reference voltage signal line 511 and a first electromagnetic signal line 521 connected to the first induction coil 411 are formed on the packaging layer 20.
  • first induction coil 411 and the first touch driving electrode 31 may be formed through the same etching process, or may be formed through different processes.
  • a first insulating layer 61 covering the first touch driving electrode 31, the first induction coil 411, the first reference voltage signal line 511 and the first electromagnetic signal line 521 is formed.
  • the second touch drive electrode 32 and the second induction coil 412 arranged in the second direction are formed on the first insulating layer 61, and the second induction coil 412 surrounds the second touch drive electrode 32.
  • the second reference voltage signal line 512 and the second electromagnetic signal line 522 connected to the second induction coil 412 are formed on the first insulating layer 61 at the same time.
  • the second induction coil 412 and the second touch drive electrode 32 may be formed through the same etching process, or may be formed through different processes.
  • each of the first signal line 51 and each of the second signal lines 52 includes a lead segment 53 arranged along the second direction, a broken line segment 54 arranged along the first direction, and
  • the first end of the lead segment 53 is electrically connected to one end of the induction coil 41
  • the first end of the broken line segment 54 is connected to the second end of the lead segment 53
  • the collection line 55 is connected to the second end of the broken line segment 5.
  • the terminal is electrically connected
  • the lead section 53 is used to connect the induction coil 41
  • the broken line section 54 and the collection line section 55 are used for condensing and concentration, which is convenient for wiring in a small area.
  • a display device is different from the first embodiment in that the structure of the touch layer 30 and the electromagnetic induction layer are different.
  • a plurality of the induction coils 41 are arrayed on the encapsulation layer 20, and the induction coils 41 are multiplexed as third touch driving electrodes.
  • the induction coil 41 has both functions of touch induction and electromagnetic induction, and there is no need to additionally provide a touch layer 30, thereby reducing the overall thickness of the display device.
  • the touch layer 30 is a self-capacitive touch layer 30.
  • the electromagnetic induction function is stopped, and the first signal line 51 and the second signal line 52 connected to each induction coil 41 are connected to the same At the same time, the same induction signal is output to realize the touch induction function; when electromagnetic induction is performed, the touch induction function is stopped, and the induction coil 41 outputs an electromagnetic induction signal to realize the electromagnetic induction function.
  • the whole of the induction coil 41 is in a spiral shape, so that the induction coil 41 has an electromagnetic induction function, and at the same time, the area of the induction coil 41 can be increased to increase the accuracy of touch sensing, and the number of wires of the induction coil 41 can also be increased. , In order to increase the magnetic flux of electromagnetic induction, thereby increasing the accuracy of electromagnetic induction.
  • the whole of the induction coil 41 can be in a square spiral shape, and the whole of the induction coil 41 can also be in a circular spiral shape, and the overall length and width of each induction coil 41 are 3-6 mm.
  • the first signal line 51 and the induction coil 41 are arranged on the same layer, and the first signal line 51 is electrically connected to the terminal of the induction coil 41; the electromagnetic induction layer further includes covering the induction coil 41 and the second insulating layer 62 of the first signal line 51, the second signal line 52 is disposed on the second insulating layer 62, and the second signal line 52 passes through the second insulating layer 62
  • the via hole is electrically connected to the start end of the induction coil 41.
  • the whole of the induction coil 41 has a spiral structure. At this time, the start of the induction coil 41 is inside the coil, and the end of the induction coil 41 is outside the coil.
  • the second signal line 52 is located on a different layer from the induction coil 41. It is connected to the start end of the induction coil 41 to prevent the second signal line 52 from causing a short circuit between the coils of the induction coil 41.
  • the first signal lines 51 are arranged along the first direction or the second direction, and the first signal lines 51 are located in the gap area between two adjacent rows of the induction coils 41 or two adjacent rows of the induction coils 41. At the gap area of the coil 41.
  • the second signal line 52 is arranged in parallel with the first signal line 51.
  • the electromagnetic induction layer further includes a second protection layer covering the second induction coil 412 and the second touch driving electrode 32.
  • FIGS. 9 to 11 are schematic diagrams of the preparation process of the electromagnetic induction layer in the second embodiment.
  • a plurality of induction coils 41 arranged in an array are formed on the encapsulation layer 20, and a first signal line 51 connected to the terminal of the induction coil 41 is formed at the same time.
  • a second insulating layer 62 covering the induction coil 41 and the first signal line 51 is formed.
  • a via hole is formed on the insulating layer, and a second signal line 52 filling the via hole to be electrically connected to the start end of the induction coil 41 is formed.
  • the beneficial effect of the present invention is that the first signal line 51 and the second signal line 52 form an electrical circuit with the induction coil 41, and when the electromagnetic pen approaches the area corresponding to the induction coil 41 on the display screen, the induction coil 41 will induce induction. Electric current is used to obtain the position information of the electromagnetic pen, and the electromagnetic induction layer is integrated into the touch layer 30, so that the touch layer 30 has electromagnetic induction function at the same time, replacing the external electromagnetic screen module to realize the functions of electromagnetic screen and capacitive screen Integration can reduce the overall thickness of the display device.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种显示装置，包括阵列基板（10）、设置于所述阵列基板（10）上的封装层（20），以及，设置于所述封装层（20）远离所述阵列基板（10）的一侧上的触控层（30）；所述触控层（30）中设置有电磁感应层，所述电磁感应层包括多个感应线圈（41），所述感应线圈（41）的第一端与第一信号线（51）电连接，所述感应线圈（41）的第二端与第二信号线（52）电连接。

Description

一种显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示装置。
 背景技术
电磁屏是指采用电磁感应技术（Electromagnetic Resonance）,能够搭配电磁笔实验精准触控和原笔迹书写的电磁式触控屏。当电磁笔接近电磁屏时，会引起电磁屏在横向和纵向上的感应线圈产生感应电流，从而获得电磁笔的位置信息。
然而，现有的电磁屏一般都是作为独立的触控器件以外挂式的方式放置于显示模组的背面，从而导致显示模组的整体厚度较大。
 技术问题
本申请实施例提供一种显示装置，以解决现有的电磁屏一般都是作为独立的触控器件以外挂式的方式放置于显示模组的背面，从而导致显示模组的整体厚度较大的技术问题。
 技术解决方案
第一方面，本申请提供一种显示装置，所述显示装置包括：
阵列基板；
设置于所述阵列基板上的封装层；以及，
设置于所述封装层远离所述阵列基板的一侧上的触控层；
其中，所述触控层中设置有电磁感应层，所述电磁感应层包括多个感应线圈，所述感应线圈的第一端与第一信号线电连接，所述感应线圈的第二端与第二信号线电连接。
在一些实施例中，所述电磁感应层包括：
设置于所述封装层上的多个第一感应线圈，多个所述第一感应线圈沿第一方向延伸且按第二方向间隔排布；
覆盖所述第一感应线圈的第一绝缘层；以及，
设置于所述第一绝缘层远离所述第一触控层的一侧上的多个第二感应线圈，多个所述第二感应线圈沿第二方向延伸且按第一方向间隔排布。
在一些实施例中，所述触控层包括设置于所述封装层上的多个第一触控驱动电极以及设置于所述第一绝缘层上的多个第二触控驱动电极；
多个所述第一触控驱动电极沿第一方向延伸且按第二方向间隔排布，所述第一感应线圈与所述第一触控驱动电极一一对应且围绕所述第一触控驱动电极设置；多个所述第二触控驱动电极沿第二方向延伸且按第一方向间隔排布，所述第二感应线圈与所述第二触控驱动电极一一对应且围绕所述第二触控驱动电极设置。
在一些实施例中，所述阵列基板包括阵列分布的多个子像素；所述第一触控驱动电极和所述第二触控驱动电极均包括网格状结构，所述网格状结构的网孔在所述阵列基板上的正投影与所述子像素一一对应。
在一些实施例中，所述第一信号线包括与所述第一感应线圈同层设置的第一参考电压信号线和与所述第二感应线圈同层设置的第二参考电压信号线；
所述第二信号线包括与所述第一感应线圈同层设置的第一电磁信号线和与所述第二感应线圈同层设置的第二电磁信号线。
在一些实施例中，多个所述感应线圈阵列分布于所述封装层上，所述感应线圈复用为第三触控驱动电极。
在一些实施例中，所述感应线圈的整体呈螺旋状。
在一些实施例中，所述第一信号线和所述感应线圈同层设置，所述第一信号线与所述感应线圈的终端电连接；所述电磁感应层还包括覆盖所述感应线圈和所述第一信号线的第二绝缘层，所述第二信号线设置于所述第二绝缘层上，所述第二信号线通过贯穿所述第二绝缘层的过孔与所述感应线圈的始端电连接。
在一些实施例中，所述第一信号线沿第一方向或第二方向排布，所述第一信号线位于相邻两列所述感应线圈的间隙区域处或相邻两行所述感应线圈的间隙区域处。
在一些实施例中，所述第二信号线与所述第一信号线平行设置。
第二方面，本申请还提供一种显示装置，所述显示装置包括：
阵列基板，所述阵列基板为柔性基板或硬性基板；
设置于所述阵列基板上的封装层；以及，
设置于所述封装层远离所述阵列基板的一侧上的触控层；
其中，所述触控层中设置有电磁感应层，所述电磁感应层包括多个感应线圈，所述感应线圈的第一端与第一信号线电连接，所述感应线圈的第二端与第二信号线电连接。
在一些实施例中，所述电磁感应层包括：
设置于所述封装层上的多个第一感应线圈，多个所述第一感应线圈沿第一方向延伸且按第二方向间隔排布；
覆盖所述第一感应线圈的第一绝缘层；以及，
设置于所述第一绝缘层远离所述第一触控层的一侧上的多个第二感应线圈，多个所述第二感应线圈沿第二方向延伸且按第一方向间隔排布。
在一些实施例中，所述触控层包括设置于所述封装层上的多个第一触控驱动电极以及设置于所述第一绝缘层上的多个第二触控驱动电极；
多个所述第一触控驱动电极沿第一方向延伸且按第二方向间隔排布，所述第一感应线圈与所述第一触控驱动电极一一对应且围绕所述第一触控驱动电极设置；多个所述第二触控驱动电极沿第二方向延伸且按第一方向间隔排布，所述第二感应线圈与所述第二触控驱动电极一一对应且围绕所述第二触控驱动电极设置。
在一些实施例中，所述阵列基板包括阵列分布的多个子像素；所述第一触控驱动电极和所述第二触控驱动电极均包括网格状结构，所述网格状结构的网孔在所述阵列基板上的正投影与所述子像素一一对应。
在一些实施例中，所述第一信号线包括与所述第一感应线圈同层设置的第一参考电压信号线和与所述第二感应线圈同层设置的第二参考电压信号线；
所述第二信号线包括与所述第一感应线圈同层设置的第一电磁信号线和与所述第二感应线圈同层设置的第二电磁信号线。
在一些实施例中，多个所述感应线圈阵列分布于所述封装层上，所述感应线圈复用为第三触控驱动电极。
在一些实施例中，所述感应线圈的整体呈螺旋状。
在一些实施例中，所述第一信号线和所述感应线圈同层设置，所述第一信号线与所述感应线圈的终端电连接；所述电磁感应层还包括覆盖所述感应线圈和所述第一信号线的第二绝缘层，所述第二信号线设置于所述第二绝缘层上，所述第二信号线通过贯穿所述第二绝缘层的过孔与所述感应线圈的始端电连接。
在一些实施例中，所述第一信号线沿第一方向或第二方向排布，所述第一信号线位于相邻两列所述感应线圈的间隙区域处或相邻两行所述感应线圈的间隙区域处。
在一些实施例中，所述第二信号线与所述第一信号线平行设置。
 有益效果
通过第一信号线和第二信号线与感应线圈形成电回路，在电磁笔接近显示屏上与感应线圈对应的区域时，会引起感应线圈产生感应电流，从而获得电磁笔的位置信息，同时将电磁感应层整合于触控层中，使得触控层同时具备电磁感应功能，取代外挂的电磁屏模组，实现电磁屏和电容屏的功能集成，可以降低显示装置的整体厚度。
 附图说明
图1为本发明一实施方式中显示装置的结构示意图；
图2为本发明实施例一中触控层的结构示意图；
图3为本发明实施例一中触控层的平面结构示意图；
图4为本发明实施例一中第一触控驱动电极的结构示意图；
图5至图7为本发明实施例一中触控层的制备流程示意图；
图8为本发明实施例二中电磁感应层的平面结构示意图；
图9至图11为本发明实施例二中电磁感应层的制备流程示意图。
附图标记：
10、阵列基板；20、封装层；30、触控层；31、第一触控驱动电极；32、第二触控驱动电极；41、感应线圈；411、第一感应线圈；412、第二感应线圈；51、第一信号线；511、第一参考电压信号线；512、第二参考电压信号线；52、第二信号线；521、第一电磁信号线；522、第二电磁信号线；53、引线段；54、折线段；55、集线段；61、第一绝缘层；62、第二绝缘层；71、第一保护层。
 本发明的实施方式
为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
本发明针对现有的现有的电磁屏一般都是作为独立的触控器件以外挂式的方式放置于OLED显示模组的背面，从而导致OLED显示模组的整体厚度较大的技术问题。
实施例一：
一种显示装置，如图1所示，所述显示装置包括阵列基板10、设置于所述阵列基板10上的封装层20以及设置于所述封装层20远离所述阵列基板10的一侧上的触控层30。
需要说明的是，所述显示装置可以为OLED显示装置，所述阵列基板10可以为柔性基板或硬性基板；所述封装层20可以为有机层、无机层和有机层交叠设置的叠层结构；所述触控层30为电容式触控层30。
具体的，如图2和图3所示，所所述触控层30中设置有电磁感应层，所述电磁感应层包括多个感应线圈41，所述感应线圈41的第一端与第一信号线51电连接，所述感应线圈41的第二端与第二信号线52电连接。
需要说明的是，第一信号线51和第二信号线52中的一者接地或接入低电位的参考信号线，另一者输出电磁感应信号，以用于电磁信号量测。
具体的，所述显示装置还包括与所述电磁感应层配合的电磁笔。
通过第一信号线51和第二信号线52与感应线圈41形成电回路，在电磁笔接近显示屏上与感应线圈41对应的区域时，会引起感应线圈41产生感应电流，从而获得电磁笔的位置信息，同时将电磁感应层整合于触控层30中，取代外挂的电磁屏模组，从而实现电磁屏和电容屏的功能集成，可以降低显示装置的整体厚度。
具体的，所述电磁感应层包括设置于所述封装层20上的多个第一感应线圈411、覆盖所述第一感应线圈411的第一绝缘层61，以及，设置于所述第一绝缘层61远离所述第一触控层30的一侧上的多个第二感应线圈412。
需要说明的是，所述第一绝缘层61可以采用氮化硅和氧化硅等无机材质或光学胶等有机材质制作。
其中，多个所述第一感应线圈411沿第一方向延伸且按第二方向间隔排布，多个所述第二感应线圈412沿第二方向延伸且按第一方向间隔排布。
需要说明的是，所述第一方向与所述第二方向可以为相互垂直的方向，如第一方向为横向，第二方向为纵向（如图3）。电磁笔接近触控层30时，会引起触控层30中沿第一方向和第二方向的感应线圈41产生感应电流，从而可以获得电磁笔的精准位置信息。
具体的，所述触控层30包括设置于所述封装层20上的多个第一触控驱动电极31以及设置于所述第一绝缘层61上的多个第二触控驱动电极32。
其中，多个所述第一触控驱动电极31沿第一方向延伸且按第二方向间隔排布，所述第一感应线圈411与所述第一触控驱动电极31一一对应且围绕所述第一触控驱动电极31设置。
其中，多个所述第二触控驱动电极32沿第二方向延伸且按第一方向间隔排布，所述第二感应线圈412与所述第二触控驱动电极32一一对应且围绕所述第二触控驱动电极32设置。
需要说明的是，所述触控层30为互溶式触控层30，每个所述第一触控驱动电极31和每个所述第二触控驱动电极32与至少一条金属连接线连接，连接线用于输出触控信号。对显示装置进行按压触控时，第一触控驱动电极31和第二触控驱动电极32之间的电容发生变化，根据电容变化点确定触控发生点，从而实现触控功能。
需要说明的是，通过将第一感应线圈411围绕第一触控驱动电极31设置，第二感应线圈412围绕第二触控驱动电极32设置，从而将感应线圈41整合于相邻触控电极之间的间隙处，将电磁感应层整合到触控层30中，合理利用空置区域，减少感应线圈41占用的面积。
具体的，所述第一信号线51包括与所述第一感应线圈411同层设置的第一参考电压信号线511和与所述第二感应线圈412同层设置的第二参考电压信号线512；所述第二信号线52包括与所述第一感应线圈411同层设置的第一电磁信号线521和与所述第二感应线圈412同层设置的第二电磁信号线522。
需要说明的是，此时第一信号线51为接地或接入低电位的参考信号线，第二信号线52输出电磁感应信号，以用于电磁信号量测。
需要说明的是，阵列基板10包括显示区和位于显示区周围的边框区，所述第一信号线51和第二信号线52均设置于触控层30上与边框区对应的区域，从而避免第一信号线51和第二信号线52遮挡显示区的出光。
在一实施方式中，所述电磁感应层还包括覆盖所述第二感应线圈412和第二触控驱动电极32的第一保护层71。
具体的，如图3和图4所示，所述阵列基板10包括阵列分布的多个子像素，所述子像素位于显示区；所述第一触控驱动电极31和所述第二触控驱动电极32均包括网格状结构，所述网格状结构的网孔在所述阵列基板10上的正投影与所述子像素一一对应。
需要说明的是，第一触控驱动电极31和第二触控驱动电极32的制备材料包括但不限于钼、铝、钛、钼合金、铝合金和钛合金中的一种或多种，第一触控驱动电极31和第二触控驱动电极32采用金属网格状结构，从而避免第一触控驱动电极31和第二触控驱动电极32遮挡子像素区域的出光。
参见图5至图7所示，图5至图7为实施例一中触控层30的制备流程示意图。
如图5所示，在所述封装层20上形成沿第一方向排布的第一触控驱动电极31和第一感应线圈411，第一感应线圈411围绕第一触控驱动电极31设置，同时在封装层20上形成与第一感应线圈411连接的第一参考电压信号线511和第一电磁信号线521。
需要说明的是，第一感应线圈411可以与第一触控驱动电极31通过同一道蚀刻工艺形成，也可以分别通过不同的工序形成。
如图6所示，形成覆盖所述第一触控驱动电极31、第一感应线圈411、第一参考电压信号线511和第一电磁信号线521的第一绝缘层61。
如图7所示，在所述第一绝缘层61上形成沿第二方向排布的第二触控驱动电极32和第二感应线圈412，第二感应线圈412围绕第二触控驱动电极32设置，同时在第一绝缘层61上形成与第二感应线圈412连接的第二参考电压信号线512和第二电磁信号线522。
需要说明的是，第二感应线圈412可以与第二触控驱动电极32通过同一道蚀刻工艺形成，也可以分别通过不同的工序形成。
在一实施方式中，每一所述第一信号线51和每一所述第二信号线52均包括沿第二方向设置的引线段53、沿第一方向设置的折线段54以及沿第二方向设置的集线段55；引线段53的第一端与感应线圈41的一端电连接，折线段54的第一端与引线段53的第二端连接，集线段55与折线段5的第二端电连接，引线段53用于连接感应线圈41，折线段54和集线段55用于进行收束集中，便于在较小的区域内进行走线。
实施例二：
一种显示装置，其与实施一的不同之处在于触控层30和电磁感应层的结构不同。
具体的，如图8所示，多个所述感应线圈41阵列分布于所述封装层20上，所述感应线圈41复用为第三触控驱动电极。
需要说明的是，通过对感应线圈41的结构进行设计，使感应线圈41同时具备触控感应和电磁感应两种功能，无需额外设置触控层30，降低显示装置的整体厚度。
需要说明的是，触控层30为自容式触控层30，进行电容式感应时，停止电磁感应功能，每个感应线圈41连接的第一信号线51和第二信号线52接入相同的驱动信号，同时输出相同的感应信号，以实现触控感应功能；进行电磁感应时，停止触控感应功能，感应线圈41输出电磁感应信号，以实现电磁感应功能。
具体的，所述感应线圈41的整体呈螺旋状，从而使得感应线圈41具备电磁感应功能，同时可以增加感应线圈41的面积，以增加触控感应的精度，还可以增加感应线圈41的扎数，以增加电磁感应的磁通量，从而增大电磁感应的精度。
需要说明的是，感应线圈41的整体可以呈方形螺旋状，感应线圈41的整还可以呈圆形螺旋状，每个感应线圈41的整体的长度和宽度均为3～6毫米。
具体的，所述第一信号线51和所述感应线圈41同层设置，所述第一信号线51与所述感应线圈41的终端电连接；所述电磁感应层还包括覆盖所述感应线圈41和所述第一信号线51的第二绝缘层62，所述第二信号线52设置于所述第二绝缘层62上，所述第二信号线52通过贯穿所述第二绝缘层62的过孔与所述感应线圈41的始端电连接。
需要说明的是，感应线圈41的整体呈螺旋状结构，此时感应线圈41的始端位于线圈内，感应线圈41的终端位于线圈外，利用与感应线圈41位于不同层别的第二信号线52与感应线圈41的始端连接，防止第二信号线52导致感应线圈41各扎线圈之间发生短接。
具体的，所述第一信号线51沿第一方向或第二方向排布，所述第一信号线51位于相邻两列所述感应线圈41的间隙区域处或相邻两行所述感应线圈41的间隙区域处。
进一步的，所述第二信号线52与所述第一信号线51平行设置。
在一实施方式中，所述电磁感应层还包括覆盖所述第二感应线圈412和第二触控驱动电极32的第二保护层。
参见图9至图11，图9至图11为实施例二中电磁感应层的制备流程示意图。
如图9所示，在所述封装层20上形成多个阵列排布的感应线圈41，同时形成与感应线圈41的终端连接的第一信号线51。
如图10所示，形成覆盖感应线圈41和第一信号线51的第二绝缘层62。
如图11所示，在所述绝缘层上形成过孔，并形成填充过孔以与感应线圈41的始端电连接的第二信号线52。
本发明的有益效果为：通过第一信号线51和第二信号线52与感应线圈41形成电回路，在电磁笔接近显示屏上与感应线圈41对应的区域时，会引起感应线圈41产生感应电流，从而获得电磁笔的位置信息，同时将电磁感应层整合于触控层30中，使得触控层30同时具备电磁感应功能，取代外挂的电磁屏模组，实现电磁屏和电容屏的功能集成，可以降低显示装置的整体厚度。
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。
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. 一种显示装置，其中，所述显示装置包括：
    阵列基板；
    设置于所述阵列基板上的封装层；以及，
    设置于所述封装层远离所述阵列基板的一侧上的触控层；
    其中，所述触控层中设置有电磁感应层，所述电磁感应层包括多个感应线圈，所述感应线圈的第一端与第一信号线电连接，所述感应线圈的第二端与第二信号线电连接。
  2. 根据权利要求1所述的显示装置，其中，所述电磁感应层包括：
    设置于所述封装层上的多个第一感应线圈，多个所述第一感应线圈沿第一方向延伸且按第二方向间隔排布；
    覆盖所述第一感应线圈的第一绝缘层；以及，
    设置于所述第一绝缘层远离所述第一触控层的一侧上的多个第二感应线圈，多个所述第二感应线圈沿第二方向延伸且按第一方向间隔排布。
  3. 根据权利要求2所述的显示装置，其中，所述触控层包括设置于所述封装层上的多个第一触控驱动电极以及设置于所述第一绝缘层上的多个第二触控驱动电极；
    多个所述第一触控驱动电极沿第一方向延伸且按第二方向间隔排布，所述第一感应线圈与所述第一触控驱动电极一一对应且围绕所述第一触控驱动电极设置；多个所述第二触控驱动电极沿第二方向延伸且按第一方向间隔排布，所述第二感应线圈与所述第二触控驱动电极一一对应且围绕所述第二触控驱动电极设置。
  4. 根据权利要求3所述的显示装置，其中，所述阵列基板包括阵列分布的多个子像素；所述第一触控驱动电极和所述第二触控驱动电极均包括网格状结构，所述网格状结构的网孔在所述阵列基板上的正投影与所述子像素一一对应。
  5. 根据权利要求2所述的显示装置，其中，所述第一信号线包括与所述第一感应线圈同层设置的第一参考电压信号线和与所述第二感应线圈同层设置的第二参考电压信号线；
    所述第二信号线包括与所述第一感应线圈同层设置的第一电磁信号线和与所述第二感应线圈同层设置的第二电磁信号线。
  6. 根据权利要求1所述的显示装置，其中，多个所述感应线圈阵列分布于所述封装层上，所述感应线圈复用为第三触控驱动电极。
  7. 根据权利要求6所述的显示装置，其中，所述感应线圈的整体呈螺旋状。
  8. 根据权利要求6所述的显示装置，其中，所述第一信号线和所述感应线圈同层设置，所述第一信号线与所述感应线圈的终端电连接；所述电磁感应层还包括覆盖所述感应线圈和所述第一信号线的第二绝缘层，所述第二信号线设置于所述第二绝缘层上，所述第二信号线通过贯穿所述第二绝缘层的过孔与所述感应线圈的始端电连接。
  9. 根据权利要求8所述的显示装置，其中，所述第一信号线沿第一方向或第二方向排布，所述第一信号线位于相邻两列所述感应线圈的间隙区域处或相邻两行所述感应线圈的间隙区域处。
  10. 据权利要求9所述的显示装置，其中，所述第二信号线与所述第一信号线平行设置。
  11. 一种显示装置，其中，所述显示装置包括：
    阵列基板，所述阵列基板为柔性基板或硬性基板；
    设置于所述阵列基板上的封装层；以及，
    设置于所述封装层远离所述阵列基板的一侧上的触控层；
    其中，所述触控层中设置有电磁感应层，所述电磁感应层包括多个感应线圈，所述感应线圈的第一端与第一信号线电连接，所述感应线圈的第二端与第二信号线电连接。
  12. 根据权利要求11所述的显示装置，其中，所述电磁感应层包括：
    设置于所述封装层上的多个第一感应线圈，多个所述第一感应线圈沿第一方向延伸且按第二方向间隔排布；
    覆盖所述第一感应线圈的第一绝缘层；以及，
    设置于所述第一绝缘层远离所述第一触控层的一侧上的多个第二感应线圈，多个所述第二感应线圈沿第二方向延伸且按第一方向间隔排布。
  13. 根据权利要求12所述的显示装置，其中，所述触控层包括设置于所述封装层上的多个第一触控驱动电极以及设置于所述第一绝缘层上的多个第二触控驱动电极；
    多个所述第一触控驱动电极沿第一方向延伸且按第二方向间隔排布，所述第一感应线圈与所述第一触控驱动电极一一对应且围绕所述第一触控驱动电极设置；多个所述第二触控驱动电极沿第二方向延伸且按第一方向间隔排布，所述第二感应线圈与所述第二触控驱动电极一一对应且围绕所述第二触控驱动电极设置。
  14. 根据权利要求13所述的显示装置，其中，所述阵列基板包括阵列分布的多个子像素；所述第一触控驱动电极和所述第二触控驱动电极均包括网格状结构，所述网格状结构的网孔在所述阵列基板上的正投影与所述子像素一一对应。
  15. 根据权利要求12所述的显示装置，其中，所述第一信号线包括与所述第一感应线圈同层设置的第一参考电压信号线和与所述第二感应线圈同层设置的第二参考电压信号线；
    所述第二信号线包括与所述第一感应线圈同层设置的第一电磁信号线和与所述第二感应线圈同层设置的第二电磁信号线。
  16. 根据权利要求11所述的显示装置，其中，多个所述感应线圈阵列分布于所述封装层上，所述感应线圈复用为第三触控驱动电极。
  17. 根据权利要求16所述的显示装置，其中，所述感应线圈的整体呈螺旋状。
  18. 根据权利要求16所述的显示装置，其中，所述第一信号线和所述感应线圈同层设置，所述第一信号线与所述感应线圈的终端电连接；所述电磁感应层还包括覆盖所述感应线圈和所述第一信号线的第二绝缘层，所述第二信号线设置于所述第二绝缘层上，所述第二信号线通过贯穿所述第二绝缘层的过孔与所述感应线圈的始端电连接。
  19. 根据权利要求18所述的显示装置，其中，所述第一信号线沿第一方向或第二方向排布，所述第一信号线位于相邻两列所述感应线圈的间隙区域处或相邻两行所述感应线圈的间隙区域处。
  20. 据权利要求19所述的显示装置，其中，所述第二信号线与所述第一信号线平行设置。
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