WO2021168946A1 - 显示面板及显示面板的制作方法 - Google Patents

显示面板及显示面板的制作方法 Download PDF

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Publication number
WO2021168946A1
WO2021168946A1 PCT/CN2020/080395 CN2020080395W WO2021168946A1 WO 2021168946 A1 WO2021168946 A1 WO 2021168946A1 CN 2020080395 W CN2020080395 W CN 2020080395W WO 2021168946 A1 WO2021168946 A1 WO 2021168946A1
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WO
WIPO (PCT)
Prior art keywords
substrate
layer
display panel
touch
electrode
Prior art date
Application number
PCT/CN2020/080395
Other languages
English (en)
French (fr)
Inventor
曹武
林永伦
龚立伟
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US16/652,693 priority Critical patent/US11360592B2/en
Publication of WO2021168946A1 publication Critical patent/WO2021168946A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13398—Spacer materials; Spacer properties
    • 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
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present invention relates to the field of display technology, and in particular to a display panel and a manufacturing method of the display panel.
  • the touch structure in the liquid crystal cell has the advantages of being compatible with the existing liquid crystal panel manufacturing process and improving the thickness of the liquid crystal panel module.
  • the common electrode layer needs to be placed on the substrate close to the backlight module to prevent
  • the common electrode layer provided on the surface shields signals from fingers and touch electrodes.
  • the traces of the touch electrodes and the pixels need to be placed on the array substrate.
  • the array substrate must be arranged on the side of the color filter substrate away from the backlight module.
  • the high reflectivity caused by a large amount of metal in the array substrate reduces the light transmittance of the backlight module and reduces the brightness of the display panel.
  • the existing display panel with the touch structure in the liquid crystal cell has the problem that the high reflectivity caused by the large amount of metal in the array substrate reduces the light transmittance of the backlight module, resulting in the reduction of the brightness of the display panel. Therefore, it is necessary to provide a display panel and a manufacturing method of the display panel to improve this defect.
  • the embodiments of the present disclosure provide a display panel and a manufacturing method of the display panel, which are used to solve the problem of the high reflectivity caused by the large amount of metal in the array substrate in the display panel with the touch structure in the existing liquid crystal cell, and the light transmittance of the backlight module Decrease, leading to the problem of reduced brightness of the display panel.
  • the embodiment of the present disclosure provides a display panel, which includes a backlight module, a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer arranged between the first substrate and the second substrate.
  • the backlight module The group is arranged on a side of the first substrate away from the second substrate;
  • a pixel electrode layer and a plurality of touch signal lines are provided on a side of the first substrate close to the second substrate;
  • a common electrode layer is provided on a side of the second substrate close to the first substrate, and a plurality of touch electrodes are provided between the common electrode layer and the second substrate;
  • a plurality of conductive main spacers are further provided between the first substrate and the second substrate, and both ends of the main spacers are connected to the touch electrode and the touch signal line respectively. connect.
  • a plurality of the touch electrodes are arranged on the second substrate along a first direction and a second direction to form a touch electrode array.
  • the touch electrode is a block electrode, and the planar size of the touch electrode is between 3*3 mm and 10*10 mm.
  • each of the touch electrodes is connected to at least one of the main spacers.
  • the display panel includes a plurality of light-transmitting sub-regions and non-light-transmitting sub-regions, a plurality of black matrices are further provided on a side of the second substrate close to the first substrate, the The black matrix and the main spacer are both arranged in the non-light-transmitting sub-region.
  • the first substrate is further provided with a plurality of auxiliary spacers on the side close to the second substrate, and the auxiliary spacers are located in the non-transparent sub-region and are in contact with the The material of the main spacer is the same.
  • a first insulating layer is provided between the common electrode layer and the touch electrode, and the main spacer passes through a via hole penetrating the common electrode layer and the first insulating layer. Connected with the touch electrode.
  • the display panel further includes a color filter layer disposed on a side of the first substrate close to the second substrate or disposed on a side of the second substrate close to the second substrate. Said one side of the first substrate.
  • the first substrate is further provided with a plurality of thin film transistors on a side close to the second substrate, and the thin film transistors include a gate line layer, an active layer, a source electrode and a drain electrode, and The touch signal line is made of the same material as the source electrode and the drain electrode, and is arranged on the same layer.
  • the embodiments of the present disclosure also provide a display panel, including a backlight module, a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer arranged between the first substrate and the second substrate.
  • the backlight The module is arranged on a side of the first substrate away from the second substrate;
  • a pixel electrode layer and a plurality of touch signal lines are provided on a side of the first substrate close to the second substrate;
  • the second substrate is provided with a color filter layer, a common electrode layer, a first insulating layer, and a plurality of touch electrodes on a side close to the first substrate, and the color filter layer is located on the second substrate and Between the first insulating layers, the common electrode layer is located on a side of the first insulating layer away from the second substrate, and a plurality of the touch electrodes are located on the color filter layer and the second substrate. Between an insulating layer;
  • a plurality of conductive main spacers are further provided between the first substrate and the second substrate, one end of the main spacers is connected to the touch signal line, and the main spacers The other end is connected to the touch electrode through a via hole penetrating the common electrode layer and the first insulating layer.
  • a plurality of the touch electrodes are arranged on the second substrate along a first direction and a second direction to form a touch electrode array.
  • the touch electrode is a block electrode, and the planar size of the touch electrode is between 3*3 mm and 10*10 mm.
  • each of the touch electrodes is connected to at least one of the main spacers.
  • the display panel includes a plurality of light-transmitting sub-regions and non-light-transmitting sub-regions, a plurality of black matrices are further provided on a side of the second substrate close to the first substrate, the The black matrix and the main spacer are both arranged in the non-light-transmitting sub-region.
  • the first substrate is further provided with a plurality of auxiliary spacers on the side close to the second substrate, and the auxiliary spacers are located in the non-transparent sub-region and are in contact with the The material of the main spacer is the same.
  • the first substrate is further provided with a plurality of thin film transistors on a side close to the second substrate, and the thin film transistors include a gate line layer, an active layer, a source electrode and a drain electrode, and The touch signal line is made of the same material as the source electrode and the drain electrode, and is arranged on the same layer.
  • the embodiments of the present disclosure provide a manufacturing method of a display panel, including:
  • the first substrate and the second substrate are bonded to the box.
  • the pixel electrodes and the touch signal lines are arranged on the first substrate, and the touch electrodes and the common electrodes are arranged on the second substrate.
  • a plurality of conductive main spacers are arranged between the touch electrodes and the touch signal lines to realize the conduction between the first substrate and the second substrate, eliminate the shielding of the touch electrode signals by the common electrode, and provide the backlight
  • the module is arranged on the side of the first substrate away from the second substrate to increase the light transmittance of the backlight module and increase the brightness of the display panel.
  • FIG. 1 is a schematic diagram of a cross-sectional structure of a display panel provided by an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of the arrangement of touch electrodes provided by an embodiment of the disclosure.
  • FIG. 3 is a schematic diagram of the arrangement of the main spacer provided by the embodiment of the disclosure.
  • FIG. 4 is a schematic diagram of an auxiliary spacer provided by an embodiment of the disclosure.
  • FIG. 5 is a schematic diagram of a cross-sectional structure of a second display panel provided by an embodiment of the disclosure.
  • FIG. 6 is a schematic cross-sectional structure diagram of a third display panel provided by an embodiment of the disclosure.
  • FIG. 1 is a schematic diagram of a cross-sectional structure of a display panel provided by an embodiment of the disclosure.
  • the display panel provided by the embodiment of the present disclosure is a negative liquid crystal display panel with an in-cell touch structure.
  • the display panel includes a backlight module 14 and a first substrate 11 and a second substrate 12 arranged oppositely. And the liquid crystal layer 13 disposed between the first substrate 11 and the second substrate 12, and the backlight module 14 is disposed on the side of the first substrate 11 away from the second substrate 12.
  • a pixel electrode layer 111 and a plurality of touch signal lines 112 are provided on the side of the first substrate 11 close to the second substrate 12, and the pixel electrode layer 111 includes a pixel electrode pattern formed by etching.
  • a common electrode layer 121 is provided on the side of the second substrate 12 close to the first substrate 11, and a plurality of touch electrodes 122 are provided between the common electrode layer 121 and the second substrate 12.
  • a plurality of conductive main spacers 15 are also provided between the first substrate 11 and the second substrate 12, and both ends of the main spacers 15 are connected to the touch electrode 122 and the touch signal line 112 respectively. Connect, connect the first substrate 11 and the second substrate 12 to form a path, thereby avoiding the placement of gold glue dots in the non-display area around the first substrate 11 and the second substrate 12 for dot conduction, thereby reducing related manufacturing processes and The materials needed to reduce production costs.
  • the main spacer 15 is made of an organic polymer photoresist material containing conductive particles.
  • the conductive particles may include metal micro/nano balls such as Au/Ag/Pt, AgNW nano silver wires, graphene, or carbon nanotubes.
  • FIG. 2 is a schematic diagram of the arrangement of touch electrodes provided by an embodiment of the disclosure.
  • the touch type of the display panel provided by the embodiment of the present disclosure is transmissive self-capacitance.
  • the touch electrodes 122 are arranged on the second substrate 12 along the first direction and the second direction to form a touch electrode array, and are respectively connected to the touch
  • the signal line 122 is connected through the main spacer 15.
  • the touch electrodes 122 arranged in an array form the capacitance of the screen body respectively with the ground.
  • the capacitance of the finger will be superimposed on the capacitance of the screen body, which increases the capacitance of the screen body. Change, you can determine the coordinates of the first direction and the second direction of the touch point, and finally combine them into the coordinates of the touch point.
  • the touch electrode 122 provided by the embodiment of the present disclosure is a rectangular block electrode, and its size parallel to the plane of the second substrate 122 is 5*5 mm.
  • the size of the plane of the touch electrode 122 is not limited to 5*5mm, and it can meet the precise touch function between 3*3mm and 10*10mm. The specific value can be set according to actual needs. No restrictions.
  • the material of the touch electrode 122 is a transparent metal oxide, such as indium tin oxide (ITO).
  • FIG. 3 is a schematic diagram of the arrangement of the main spacer provided by the embodiment of the disclosure.
  • the display panel includes a plurality of sub-pixels 10 arranged in an array.
  • Each of the sub-pixels 10 includes a light-transmitting sub-region A1 and a non-light-transmitting sub-region A2.
  • a black matrix 123, and the black matrix 123 and the main spacer 15 are both located in the non-transmissive sub-region A2, and are used to block the light in the adjacent light-transmitting sub-region A1.
  • each touch electrode only needs to correspond to a main spacer 15 to complete the conduction with the touch signal line 12.
  • the main spacer 15 can be periodically arranged on the second substrate 12 according to The specific density is uniformly arranged, the plurality of main spacers 15 in the same row of sub-pixels 10 are arranged at equal intervals, and the main spacers 15 in any two adjacent rows are arranged in a staggered manner.
  • the distance a between any two adjacent main spacers 15 in the same row of sub-pixels 10 is 1488 ⁇ m
  • the distances along the second direction are also equal, where the linear distance b is 1341 ⁇ m
  • the distance c along the second direction is 1116 ⁇ m, that is, two adjacent main spacers in one row and two adjacent main spacers in the upper and lower rows
  • the objects form a rhombus arrangement.
  • the uniformly arranged main spacer 15 can not only conduct the touch electrode 122 and the touch signal line 112, but also keep the thickness of the liquid crystal cell of the display panel consistent.
  • the liquid crystal display panel is tested in some special degraded environments. Can play a role in improving the performance of the display panel.
  • the main spacers can also be arranged according to other specific densities, the above distance data can also be changed according to actual needs, and adjacent spacers can also be arranged in a square matrix, or other Arrangement of any shape can achieve the same technical effect as the above-mentioned embodiment, and there is no limitation here.
  • each touch electrode only needs to correspond to one main spacer 15 to complete the conduction with the touch signal line 12, to avoid the contact area between the touch electrode 122 and the main spacer 15 being too large. Small leads to excessive contact impedance.
  • One touch electrode 122 should be connected to multiple main spacers 15 to reduce the impedance. In addition, it can also avoid touch caused by a single main spacer 15 or touch signal line 112 disconnection. Risk of failure.
  • FIG. 4 is a schematic diagram of an auxiliary spacer provided by an embodiment of the disclosure.
  • a plurality of auxiliary spacers 19 are also provided on the side of the first substrate 11 close to the second substrate 12.
  • the auxiliary spacer 19 is also arranged on the side of the color filter layer 16 away from the first substrate 11, and is located in the non-transmissive sub-region A2.
  • the height of the auxiliary spacer 19 is lower than the height of the main spacer 15, and its function is to support the first substrate 11 and the second substrate 12 to maintain the thickness of each liquid crystal cell in the display panel.
  • the material of the auxiliary spacer 19 can be the material of the spacer commonly used in the prior art.
  • the main spacer 15 and the auxiliary spacer 19 are formed at the same time through one manufacturing process, which can reduce the production process, improve the production efficiency and reduce the production cost.
  • the common electrode layer 121 is formed by evaporation on the entire surface, and a first insulating layer 125 is provided between the common electrode layer 121 and the touch electrode 122 to separate the common electrode layer 121 and the touch electrode 122 , And avoid the coupling crosstalk between the common electrode layer 121 and the touch electrode 122.
  • the material of the first insulating layer 125 is SiNx.
  • the material of the insulating layer 125 may also be an inorganic material such as SiOx, or may also be an organic material, such as a polymer material such as PFA, which is not limited here.
  • a plurality of thin film transistors 113 are further provided on the side of the first substrate 11 close to the second substrate 12, and the thin film transistors 113 are provided in the non-transmissive sub-region A2.
  • the thin film transistor 113 includes a gate line layer 114, an active layer 116, a source electrode 117, and a drain electrode 118.
  • a gate insulating layer 115 is provided on the first substrate 11, and the gate insulating layer 115 covers the gate line layer 114.
  • the layer 116 is disposed on a side of the gate insulating layer 115 away from the first substrate 11.
  • the source electrode 114 and the drain electrode 118 are respectively connected to both sides of the active layer 116.
  • the touch signal line 112 is made of the same material as the source electrode 17 and the drain electrode 118, and they are both disposed on the side of the gate insulating layer 15 away from the first substrate 11.
  • the gate line layer 115 is formed by etching from the first metal layer in the display panel, and the source electrode 117, the drain electrode 118, and the touch signal line 112 are formed by etching from the second metal layer, which can reduce individual etching. The process of etching the photomask and related film layers required to form the touch signal line.
  • the touch signal line 112 is provided on the first substrate 11, while the first touch signal line 124 connected to the touch electrode on the second substrate is reserved, so that a sub-pixel containing two touch signal lines can be formed. .
  • the first touch signal line 124 on the second substrate can also be omitted, and only the touch signal line 112 is needed to realize the transmission of the touch signal.
  • the display panel is COA (color film on array) structure of the display panel
  • the first substrate 11 is an array substrate
  • the display panel includes a color filter layer 16 disposed on the side of the first substrate 11 close to the second substrate 12.
  • the color filter layer 16 is disposed on a side of the gate insulating layer 115 away from the first substrate 11 and covers the thin film transistor 113.
  • the pixel electrode layer 11 is located on the side of the color filter layer 16 away from the first substrate 11, and is connected to the source electrode 117 of the thin film transistor 113 through a via hole penetrating the color filter layer, and the main spacer 15 penetrates the color filter layer.
  • the other via hole is connected to the touch signal line 112.
  • the black matrix 123 is disposed between the first insulating layer 125 and the common electrode layer 121, and the other end of the main spacer 15 passes through the via holes that penetrate the common electrode layer 121, the black matrix 123 and the first insulating layer 125 to interact with each other.
  • the electrodes 122 are connected. In this way, it is possible to keep the array substrate on the side close to the backlight module 14, reduce the reflection of the light emitted by the backlight module 14 by the metal of each film layer in the first substrate 11, increase the light transmittance and increase the brightness of the display panel, and at the same time , Placing the touch electrode 122 and the common electrode layer 121 on the second substrate can be compatible with the manufacturing process of the existing in cell display panel structure without affecting the manufacturing process of the pixel electrode layer 111, and there is no need to develop a new process, thereby Can reduce production costs.
  • the embodiment of the present disclosure also provides a display panel, the structure of the display panel is substantially the same as the structure of the above-mentioned display panel, the difference is that the display panel provided by the embodiment of the present disclosure is a display panel with a NonCOA architecture, that is, a display panel
  • the color filter layer 16 is disposed on the side of the second substrate 12 close to the first substrate 11.
  • the first substrate 11 is an array substrate
  • the second substrate 12 is a color filter substrate.
  • FIG. 5 is a schematic cross-sectional structure diagram of a second display panel provided by an embodiment of the disclosure.
  • the color filter layer 16 and the black matrix 123 are both disposed between the first insulating layer 125 and the common electrode layer 121, the gate insulating layer 115 is provided with a second insulating layer 119 on the side away from the first substrate 11, and the second insulating layer 119
  • the thin film transistor 113 is also covered.
  • the pixel electrode 111 is connected to the source electrode 117 through a via hole provided on the second insulating layer 119, and the main spacer 15 is connected to the touch signal line 112 through another via hole on the second insulating layer 119. connect.
  • the other end of the main spacer 15 is connected to the touch electrode 122 through a via hole penetrating the common electrode layer 121, the color filter layer 16, the black matrix 123 and the first insulating layer 125.
  • the embodiment of the present disclosure also provides another display panel.
  • the structure of the display panel is substantially the same as the structure of the above-mentioned second display panel, as shown in FIG. 6, which is the third display provided by the embodiment of the disclosure Schematic diagram of the cross-sectional structure of the panel.
  • the difference from the display panel provided by the foregoing embodiment is that, in the embodiment of the present disclosure, the color filter layer 16 and the black matrix 123 are both disposed between the first insulating layer 125 and the second substrate 12, and the touch electrode 122 It is arranged between the color filter layer 16 and the first insulating layer 125.
  • One end of the main spacer 15 is connected to the touch signal line 112, and the other end is connected to the touch electrode 122 through a via hole penetrating the common electrode layer 121 and the first insulating layer 125.
  • the color filter layer 16, the black matrix 123, the first insulating layer 125 and the common electrode layer 121 need to be opened.
  • the second display The depth of the via hole of the panel structure is obviously increased, and the required height of the main spacer 15 is also increased, which will increase the difficulty of assembling the first substrate 11 and the second substrate 12 to the box, and the assembly deviation
  • the third display panel structure does not need to make holes for the color filter layer 16 and the black matrix 123, and the height of the main spacer 15 is small, which can reduce the difficulty of assembling the box. The cost and difficulty of assembly are controllable. Therefore, the third display panel structure is preferred.
  • the pixel electrodes and the touch signal lines are arranged on the first substrate, and the touch electrodes and the common electrode are arranged on the second substrate.
  • a plurality of conductive main spacers are arranged between the touch electrodes and the touch signal lines to realize the conduction between the first substrate and the second substrate, eliminate the shielding of the touch electrode signals by the common electrode, and provide the backlight
  • the module is arranged on the side of the first substrate away from the second substrate to increase the light transmittance of the backlight module and increase the brightness of the display panel.
  • the embodiment of the present disclosure also provides a manufacturing method of the display panel, which will be described in detail below with reference to FIGS. 1 to 6.
  • Step S1 providing a first substrate 11, depositing a first metal layer on the first substrate 11, and etching the first metal layer to form a gate line layer 114;
  • Step S2 forming a gate insulating layer 115 on the first substrate 11, the gate insulating layer 115 covers the gate line layer 114, and an active layer 116 is formed on the gate insulating layer 115;
  • Step S3 deposit a second metal layer on the gate insulating layer 115, and etch the second metal layer to form a source electrode 117, a drain electrode 118, and a touch signal line 112;
  • Step S4 forming a pixel electrode layer 111 on the side of the first substrate 11 close to the second substrate 12;
  • Step S5 forming a plurality of conductive main spacers 15 on the side of the first substrate 11 close to the second substrate 12, and one end of the main spacers 15 is connected to the touch signal line 112;
  • Step S6 providing a second substrate 12, depositing a third metal layer on the second substrate 12, and etching the third metal layer to form a plurality of touch electrodes 122;
  • Step S7 depositing and forming a first insulating layer 125 on the second substrate 12, the first insulating layer 125 covering the touch electrode 122;
  • Step S8 forming a common electrode layer on the side of the first insulating layer 125 away from the second substrate 12, etching the common electrode layer and the first insulating layer to form via holes exposing part of the touch electrode;
  • Step S9 bonding the first substrate 11 and the second substrate 12 to the box, so that the other end of the main spacer 15 is connected to the touch electrode 122 through the via hole.
  • the display panel manufactured by the manufacturing method is a liquid crystal display panel with a COA structure shown in FIG. 1, and the color filter layer 16 of the display panel is disposed on the first substrate 11 (ie, the array substrate), Therefore, the following steps should be included between steps S3 and S4:
  • Step S31 forming a color filter layer 16 on the gate insulating layer 115;
  • Step S32 etching the color filter layer 16 to form a plurality of via holes penetrating the color filter layer 16.
  • the pixel electrode can be connected to the source electrode 117 through the above-mentioned via hole, and the main spacer 15 can be connected to the touch signal line 112 through the via hole, thereby connecting the first substrate 11 and the second substrate 11 12 conduction, so as to avoid setting gold glue dots on the non-display area around the first substrate 11 and the second substrate 12 for dot conduction, thereby reducing related manufacturing processes and required materials, and reducing production costs.
  • step S3 the source electrode 117, the drain electrode 118, and the touch signal line 112 are formed by etching the second metal layer, and the process of the touch signal line 112 is merged into the process of the source and drain electrodes.
  • the first substrate 11 (that is, the array substrate) can be placed on the side close to the backlight module 14, and the first substrate 11 can be reduced.
  • the metal of each film layer in the substrate 11 reflects the light of the backlight module 14, which improves the light transmittance of the backlight module and improves the brightness of the display panel.
  • auxiliary spacers 19 with a height lower than that of the main spacer 15 can also be formed at the same time.
  • the material of the auxiliary spacers 19 The material used for the main spacer 15 is the same, and the additional auxiliary spacer 19 can effectively maintain the thickness of each liquid crystal cell.
  • the color filter layer 16 can be disposed between the first insulating layer 125 and the common electrode layer 121.
  • the via hole formed in step S8 also needs to penetrate the color filter layer 16 and the black matrix 123; in addition, The color filter layer 16 is disposed between the first insulating layer 125 and the second substrate 12.
  • the via hole in step S8 does not need to penetrate the first insulating layer 125 and the black matrix 123, which can effectively reduce the via hole.
  • the depth of ⁇ and the height of the main spacer 15 reduce the difficulty of assembling and attaching the first substrate 11 and the second substrate 12 to the box.
  • the manufacturing method of the display panel provided by the embodiments of the present disclosure is by arranging touch electrodes and touch signal lines on the second substrate and the first substrate, respectively, and at the same time using conductive main spacers
  • the touch electrode and the touch signal line are connected to eliminate the shielding of the touch electrode signal from the common electrode
  • the backlight module is arranged on the side of the first substrate away from the second substrate to improve the light transmission of the backlight module Rate, improve the brightness of the display panel.

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Abstract

本发明提供一种显示面板及其制作方法，显示面板包括背光模组、相对设置的第一基板（11）和第二基板（12），第一基板上设有多条触控信号线（112），第二基板上设有公共电极层（121）和多个触控电极（122），第一基板和第二基板之间设有多个导电的主隔垫物（15），主隔垫物的两端分别与触控电极和触控信号线连接，以消除公共电极对触控电极信号的屏蔽。

Description

显示面板及显示面板的制作方法 技术领域
本发明涉及显示技术领域，尤其涉及一种显示面板及显示面板的制作方法。
 背景技术
液晶盒内触控结构具有兼容现有液晶面板制程以及改善液晶面板模组厚度的优势，对于负型液晶显示面板，需要将公共电极层置于靠近背光模组一侧的基板上，以防止整面设置的公共电极层屏蔽手指以及触控电极的信号。同时，为避免巨量触控电极的上下基板通过周围非显示区域的金胶点打点导通，需要将触控电极和像素的走线置于阵列基板上。
 技术问题
然而，由此使得阵列基板必须设置于彩膜基板远离背光模组的一侧，阵列基板内大量金属造成的高反射率使得背光模组的光线透过率减小，导致显示面板亮度降低。此外，为避免触控电极和像素电极的耦合串扰影响，还需要在触控电极上覆盖有机薄膜平坦层作为绝缘层，这使得后续薄膜晶体管器件等高温制程的难度增大。
综上所述，现有液晶盒内触控结构的显示面板存在阵列基板内大量金属造成的高反射率使得背光模组的光线透过率降低，导致显示面板亮度降低的问题。故，有必要提供一种显示面板及显示面板的制作方法来改善这一缺陷。
 技术解决方案
本揭示实施例提供一种显示面板及显示面板的制作方法，用于解决现有液晶盒内触控结构的显示面板存在阵列基板内大量金属造成的高反射率使得背光模组的光线透过率降低，导致显示面板亮度降低的问题。
本揭示实施例提供一种显示面板，包括背光模组、相对设置的第一基板和第二基板，以及设置于所述第一基板和所述第二基板之间的液晶层，所述背光模组设置于所述第一基板远离所述第二基板的一侧；
所述第一基板靠近所述第二基板的一侧上设有像素电极层以及多条触控信号线；
所述第二基板靠近所述第一基板的一侧上设有公共电极层，所述公共电极层和所述第二基板之间设有多个触控电极；
其中，所述第一基板和所述第二基板之间还设有多个导电的主隔垫物，所述主隔垫物的两端分别与所述触控电极和所述触控信号线连接。
根据本揭示一实施例，多个所述触控电极沿第一方向和第二方向在所述第二基板上排布形成触控电极阵列。
根据本揭示一实施例，所述触控电极为块状电极，并且所述触控电极的平面尺寸介于3*3mm~10*10mm之间。
根据本揭示一实施例，每一所述触控电极连接至少一个所述主隔垫物。
根据本揭示一实施例，所述显示面板包括多个透光子区和非透光子区，所述第二基板靠近所述第一基板的一侧上还设有多个黑色矩阵，所述黑色矩阵和所述主隔垫物均设置于所述非透光子区内。
根据本揭示一实施例，所述第一基板靠近所述第二基板一侧还设有多个辅助隔垫物，所述辅助隔垫物位于所述非透光子区内，并且与所述主隔垫物的材料相同。
根据本揭示一实施例，所述公共电极层与所述触控电极之间设有第一绝缘层，所述主隔垫物通过贯穿所述公共电极层和所述第一绝缘层的过孔与所述触控电极连接。
根据本揭示一实施例，所述显示面板还包括彩色滤光层，所述彩色滤光层设置于所述第一基板靠近所述第二基板的一侧或者设置于所述第二基板靠近所述第一基板的一侧。
根据本揭示一实施例，所述第一基板靠近所述第二基板一侧还设有多个薄膜晶体管，所述薄膜晶体管包括栅极线层、有源层、源电极和漏电极，所述触控信号线与所述源电极以及所述漏电极的材料相同，并设置于同一层。
本揭示实施例还提供一种显示面板，包括背光模组、相对设置的第一基板和第二基板，以及设置于所述第一基板和所述第二基板之间的液晶层，所述背光模组设置于所述第一基板远离所述第二基板的一侧；
所述第一基板靠近所述第二基板的一侧上设有像素电极层以及多条触控信号线；
所述第二基板靠近所述第一基板的一侧上设有彩色滤光层、公共电极层、第一绝缘层以及多个触控电极，所述彩色滤光层位于所述第二基板和所述第一绝缘层之间，所述公共电极层位于所述第一绝缘层远离所述第二基板的一侧上，多个所述触控电极位于所述彩色滤光层与所述第一绝缘层之间；
其中，所述第一基板和所述第二基板之间还设有多个导电的主隔垫物，所述主隔垫物的一端与所述触控信号线连接，所述主隔垫物的另一端通过贯穿所述公共电极层和所述第一绝缘层的过孔与所述触控电极连接。
根据本揭示一实施例，多个所述触控电极沿第一方向和第二方向在所述第二基板上排布形成触控电极阵列。
根据本揭示一实施例，所述触控电极为块状电极，并且所述触控电极的平面尺寸介于3*3mm~10*10mm之间。
根据本揭示一实施例，每一所述触控电极连接至少一个所述主隔垫物。
根据本揭示一实施例，所述显示面板包括多个透光子区和非透光子区，所述第二基板靠近所述第一基板的一侧上还设有多个黑色矩阵，所述黑色矩阵和所述主隔垫物均设置于所述非透光子区内。
根据本揭示一实施例，所述第一基板靠近所述第二基板一侧还设有多个辅助隔垫物，所述辅助隔垫物位于所述非透光子区内，并且与所述主隔垫物的材料相同。
根据本揭示一实施例，所述第一基板靠近所述第二基板一侧还设有多个薄膜晶体管，所述薄膜晶体管包括栅极线层、有源层、源电极和漏电极，所述触控信号线与所述源电极以及所述漏电极的材料相同，并设置于同一层。
本揭示实施例提供一种显示面板的制作方法，包括：
提供第一基板，在所述第一基板上沉积第一金属层，刻蚀所述第一金属层形成栅极线层；
在所述第一基板上形成栅极绝缘层，并在所述栅极绝缘层上形成有源层；
在所述栅极绝缘层上沉积第二金属层，刻蚀所述第二金属层，形成源电极、漏电极以及触控信号线；
在所述第一基板靠近所述第二基板一侧形成像素电极层；
在所述第一基板靠近所述第二基板的一侧形成多个导电的主隔垫物；
提供第二基板，在所述第二基板上沉积第三金属层，刻蚀所述第三金属层，形成多个触控电极；
在所述第二基板上沉积形成第一绝缘层，所述第一绝缘层覆盖所述触控电极；
在所述第一绝缘层远离所述第二基板一侧形成公共电极层，刻蚀所述公共电极层和第一绝缘层，形成暴露出部分所述触控电极的过孔；以及
将所述第一基板和所述第二基板对盒贴合。
 有益效果
本揭示实施例的有益效果：本揭示实施例将像素电极和触控信号线设置于第一基板上，并将触控电极和公共电极设置于第二基板，通过在第一基板和第二基板之间设置多个导电的主隔垫物，以将触控电极和触控信号线连接，实现第一基板和第二基板的导通，消除公共电极对触控电极信号的屏蔽，并将背光模组设置于第一基板远离第二基板的一侧，以提高背光模组的光线透过率，提升显示面板的亮度。
 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揭示的一些实施例，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为本揭示实施例提供的显示面板的截面结构示意图；
图2为本揭示实施例提供的触控电极的排布示意图；
图3为本揭示实施例提供的主隔垫物的排布示意图；
图4为本揭示实施例提供的辅助隔垫物的示意图；
图5为本揭示实施例提供的第二种显示面板的截面结构示意图；
图6为本揭示实施例提供的第三种显示面板的截面结构示意图。
 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，用以例示本揭示可用以实施的特定实施例。本揭示所提到的方向用语，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揭示，而非用以限制本揭示。在图中，结构相似的单元是用以相同标号表示。
下面结合附图和具体实施例对本揭示做进一步的说明：
本揭示实施例提供一种显示面板，下面结合图1至图6进行详细说明。如图1所示，图1为本揭示实施例提供的显示面板的截面结构示意图。本揭示实施例所提供的显示面板为液晶盒内（in cell）触控结构的负性液晶显示面板，所述显示面板包括背光模组14、相对设置的第一基板11和第二基板12，以及设置于第一基板11和第二基板12之间的液晶层13，背光模组14设置于第一基板11远离第二基板12的一侧。
第一基板11靠近第二基板12的一侧上设有像素电极层111和多条触控信号线112，像素电极层111包括刻蚀形成的像素电极图案。第二基板12靠近第一基板11的一侧上设有公共电极层121，公共电极层121和第二基板12之间设有多个触控电极122。
如图1所示，第一基板11和第二基板12之间还设有多个导电的主隔垫物15，主隔垫物15的两端分别与触控电极122和触控信号线112连接，将第一基板11和第二基板12导通形成通路，以此避免在第一基板11和第二基板12周围的非显示区域设置金胶点进行打点导通，从而减少相关的制程以及需要的材料，降低生产成本。
具体地，主隔垫物15为含有导电粒子的有机高分子光阻材料制成，导电粒子可以包括Au/Ag/Pt等金属微纳米球、AgNW纳米银线、石墨烯或碳纳米管等。
如图2所示，图2为本揭示实施例提供的触控电极的排布示意图。本揭示实施例所提供的显示面板的触控类型为透射式自电容，触控电极122在第二基板12上沿第一方向和第二方向排布形成触控电极阵列，并分别与触控信号线122通过主隔垫物15连接。阵列排布的触控电极122分别与地构成屏体的电容，当手指触摸到显示面板时，手指的电容将会叠加到屏体的电容上，使屏体的电容增加，根据触摸前后电容的变化，即可确定触摸点的第一方向和第二方向的坐标，最后组合成触摸点的坐标。
具体地，本揭示实施例所提供的的触控电极122为矩形的块状电极，其平行于第二基板122的平面的尺寸为5*5mm。当然，所述触控电极122的平面的尺寸并不仅限于5*5mm，介于3*3mm至10*10mm之间均可以满足精准触控的功能，具体数值可以根据实际需求进行设置，此处不做限制。此外，为保证显示面板的光线透过率，触控电极122的材料因为透明金属氧化物，如氧化铟锡（ITO）等。
进一步的，结合图1和图3，图3为本揭示实施例提供的主隔垫物的排布示意图。显示面板包括阵列排布的多个子像素10，每个所述子像素10均包括透光子区A1和非透光子区A2，第二基板12靠近第一基板11的一侧上设有多个黑色矩阵123，并且黑色矩阵123和主隔垫物15均位于非透光子区A2内，用于阻隔相邻透光子区A1内的光线。
其中，每一触控电极仅需对应一个主隔垫物15就可以完成与触控信号线12的导通，如图3所示，主隔垫物15可在第二基板12上周期性按照特定的密度均匀排列，位于同一行子像素10中的多个主隔垫物15之间等距间隔设置，任意相邻两行的所述主隔垫物15之间交错排列。
具体地，位于同一行子像素10中任意相邻两个主隔垫物15之间的距离a为1488μm，任意一行的主隔垫物15与相邻一行主隔垫物之间的直线距离以及沿第二方向的距离也均相等，其中直线距离距离b为1341μm，沿第二方向的距离c为1116μm，即其中一行的相邻两个主隔垫物与上下相邻两行的主隔垫物形成菱形的排布结构。均匀排列的主隔垫物15不仅可以导通触控电极122与触控信号线112，还可以使显示面板液晶盒的厚度保持一致，此外对液晶显示面板在一些特殊的劣化性环境测试中，能够起到提高显示面板性能的作用。
当然，在一些实施例中，主隔垫物还可以按照其他特定的密度排列，上述的距离数据也可以根据实际需求进行改变，相邻隔垫物之间也可以呈方正矩阵式排列，或者其他任意形状的排列方式，均可以实现与上述实施例相同的技术效果，此处不做限制。
优选的，虽然每一触控电极仅需对应一个主隔垫物15就可以完成与触控信号线12的导通，但为避免触控电极122与主隔垫物15之间由于接触面积过小导致接触阻抗过大，应该采用一个触控电极122与多个主隔垫物15连接，以减小阻抗，此外还可以避免单个主隔垫物15或者触控信号线112断路造成的触控失效的风险。
更进一步的，如图4所示，图4为本揭示实施例提供的辅助隔垫物的示意图，第一基板11靠近所述第二基板12一侧还设有多个辅助隔垫物19，辅助隔垫物19同样设置于彩色滤光层16远离第一基板11的一侧，并且位于非透光子区A2内。其中，辅助隔垫物19的高度低于主隔垫物15的高度，其作用在于支撑第一基板11和第二基板12以维持显示面板内各液晶盒的厚度。此外，辅助隔垫物19的材料可以选用现有技术中常用的隔垫物的材料，当然，优选选用与本揭示实施例中主隔垫物15相同的含有导电粒子的有机高分子光阻材料，以此通过一道制程同时形成主隔垫物15和辅助隔垫物19，可减少生产制程，提高生产效率并降低生产成本。
在本揭示实施例中，公共电极层121为整面蒸镀形成，公共电极层121与触控电极122之间设有第一绝缘层125，以将公共电极层121和触控电极122隔开，并避免公共电极层121和触控电极122之间的耦合串扰影响。
具体的，第一绝缘层125的材料为SiNx。当然，在一些实施例中，绝缘层125的材料也可以为SiOx等无机材料，或者也可以为有机材料，如PFA等高分子聚合物材料，此处不做限制。
第一基板11靠近第二基板12一侧还设有多个薄膜晶体管113，薄膜晶体管113设置于非透光子区A2内。薄膜晶体管113包括栅极线层114、有源层116、源电极117和漏电极118，第一基板11上设有栅极绝缘层115，栅极绝缘层115覆盖栅极线层114，有源层116设置于栅极绝缘层115远离第一基板11的一侧。源电极114和漏电极118分别与有源层116两侧连接。
在本实施例中，触控信号线112与源电极17以及漏电极118的材料相同，并且均设置于栅极绝缘层15远离第一基板11的一侧。具体的，栅极线层115由显示面板中第一金属层通过刻蚀形成，源电极117、漏电极118以及触控信号线112则由第二金属层刻蚀形成，以此可以减少单独刻蚀形成触控信号线所需要的光罩以及相关膜层的工艺制程。此外，在第一基板11上设置触控信号线112，同时保留第二基板上与触控电极连接的第一触控信号线124，可以形成一个子像素中含有两条触控信号线的结构。当然，在一些实施例中，第二基板上的第一触控信号线124也可以省略，仅需触控信号线112即可实现触控信号的传输。
在本揭示实施例中，显示面板为COA（color film on array）架构的显示面板，第一基板11为阵列基板，显示面板包括彩色滤光层16，所述彩色滤光层16设置于第一基板11靠近第二基板12的一侧。
具体地，彩色滤光层16设置于栅极绝缘层115远离第一基板11的一侧，并覆盖所述薄膜晶体管113。像素电极层11位于彩色滤光层16远离第一基板11的一侧，并通过贯穿彩色滤光层的过孔与薄膜晶体管113的源电极117连接，主隔垫物15通过贯穿彩色滤光层的另一过孔与触控信号线112连接。黑色矩阵123则设置于第一绝缘层125与公共电极层121之间，主隔垫物15的另一端则通过贯穿公共电极层121、黑色矩阵123以及第一绝缘层125的过孔与触控电极122连接。以此，可以保持阵列基板位于靠近背光模组14的一侧，减少第一基板11内各膜层金属对背光模组14发出光线的反射，提高光线透过率并提升显示面板的亮度，同时，将触控电极122和公共电极层121置于第二基板上，可以兼容现有in cell显示面板结构的制程，同时也不会影响像素电极层111的制程，并且无需开发新的制程，从而可以降低生产成本。
本揭示实施例还提供一种显示面板，所述显示面板的结构与上述显示面板的结构大致相同，区别之处在于，本揭示实施例所提供的显示面板为NonCOA架构的显示面板，即显示面板的彩色滤光层16设置于第二基板12靠近第一基板11的一侧，此时第一基板11为阵列基板，第二基板12为彩膜基板。
具体地，如图5所示，图5为本揭示实施例提供的第二种显示面板的截面结构示意图。彩色滤光层16和黑色矩阵123均设置于第一绝缘层125和公共电极层121之间，栅极绝缘层115远离第一基板11一侧设有第二绝缘层119，第二绝缘层119还覆盖薄膜晶体管113，像素电极111通过设置于第二绝缘层119上的过孔与源电极117连接，主隔垫物15通过第二绝缘层119上的另一过孔与触控信号线112连接。主隔垫物15的另一端则通过贯穿公共电极层121、彩色滤光层16、黑色矩阵123以及第一绝缘层125的过孔与触控电极122连接。
本揭示实施例还提供另一种显示面板，所述显示面板的结构与上述第二种显示面板的结构大致相同，如图6所示，图6为本揭示实施例所提供的第三种显示面板的截面结构示意图。与上述实施例所提供的显示面板的区别之处在于，本揭示实施例中，彩色滤光层16和黑色矩阵123均设置于第一绝缘层125和第二基板12之间，触控电极122设置于彩色滤光层16与第一绝缘层125之间。主隔垫物15的一端与触控信号线112连接，另一端通过贯穿公共电极层121和第一绝缘层125的过孔与触控电极122连接。
对于第二种显示面板的结构，需要对彩色滤光层16、黑色矩阵123、第一绝缘层125以及公共电极层121进行开孔，相较于第三种显示面板的结构，第二种显示面板的结构的过孔的深度明显增大，所需要的主隔垫物15的高度也随之增大，以此会造成第一基板11和第二基板12对盒组装难度增大，组装偏差的风险提高，而第三种显示面板的结构，无需对彩色滤光层16和黑色矩阵123进行开孔，所需要的主隔垫物15的高度较小，从而可降低对盒组装的难度，使得成本和组装难度可控，因此，优先选用第三种显示面板的结构。
本揭示实施例的有益效果：本揭示实施例将像素电极和触控信号线设置于第一基板上，并将触控电极和公共电极设置于第二基板，通过在第一基板和第二基板之间设置多个导电的主隔垫物，以将触控电极和触控信号线连接，实现第一基板和第二基板的导通，消除公共电极对触控电极信号的屏蔽，并将背光模组设置于第一基板远离第二基板的一侧，以提高背光模组的光线透过率，提升显示面板的亮度。
本揭示实施例还提供一种显示面板的制作方法，下面结合图1至图6进行详细说明。
本揭示实施例提供的显示面板的制作方法包括：
步骤S1：提供第一基板11，在第一基板11上沉积第一金属层，刻蚀所述第一金属层形成栅极线层114；
步骤S2：在第一基板11上形成栅极绝缘层115，所述栅极绝缘层115覆盖所述栅极线层114，并在所述栅极绝缘层115上形成有源层116；
步骤S3：在所述栅极绝缘层115上沉积第二金属层，刻蚀所述第二金属层形成源电极117、漏电极118以及触控信号线112；
步骤S4：在所述第一基板11靠近所述第二基板12的一侧形成像素电极层111；
步骤S5：在所述第一基板11靠近所述第二基板12的一侧形成多个导电的主隔垫物15，主隔垫物15的一端与所述触控信号线112连接；
步骤S6：提供第二基板12，在所述第二基板12上沉积第三金属层，刻蚀所述第三金属层形成多个触控电极122；
步骤S7：在第二基板12上沉积形成第一绝缘层125，第一绝缘层125覆盖所述触控电极122；
步骤S8：在第一绝缘层125远离第二基板12的一侧形成公共电极层，刻蚀所述公共电极层和第一绝缘层，形成暴露出部分触控电极的过孔；以及
步骤S9：将第一基板11和第二基板12对盒贴合，使得主隔垫物15的另一端通过所述过孔与触控电极122连接。
在本揭示实施例中，所述制作方法制作形成的显示面板为图1所示的COA结构的液晶显示面板，显示面板的彩色滤光层16设置于第一基板11（即阵列基板）上，因此步骤S3与S4之间还应包括下列步骤：
步骤S31：在栅极绝缘层115上形成彩色滤光层16；
步骤S32：刻蚀所述彩色滤光层16，形成贯穿所述彩色滤光层16的多个过孔。
在经过步骤S4和步骤S5过后，像素电极可通过上述过孔与源电极117连接，主隔垫物15可通过过孔与触控信号线112连接，以此将第一基板11和第二基板12导通，以此避免在第一基板11和第二基板12周围的非显示区域设置金胶点进行打点导通，从而减少相关的制程以及需要的材料，降低生产成本。
在本实施例中，步骤S3中，通过对第二金属层进行刻蚀从而形成源电极117、漏电极118以及触控信号线112，将触控信号线112的制程合并至源漏电极的制程中，可节省单独刻蚀形成触控信号线所需要的光罩以及相关的制程，可提升生产效率，并节省生产成本。
在本实施例中，所述制作方法制作而成的in cell触控结构的显示面板，可将第一基板11（即阵列基板）置于靠近背光模组14的一侧，可减小第一基板11内各膜层的金属对于背光模组14的光线反射，提高了背光模组光线的穿透率，并提升显示面板的亮度。
在本实施例中，所述步骤S5中，在形成主隔垫物15的同时，还可以同时形成多个高度低于主隔垫物15的辅助隔垫物19，辅助隔垫物19的材料与主隔垫物15所用的材料相同，增设的辅助隔垫物19可以有效维持各液晶盒的厚度。
本制作方法同样适用于图5和图6所示的NonCOA结构的显示面板，其主要区别之处在于，将彩色滤光层16制作形成于第二基板12靠近第一基板11的一侧。其中，可将彩色滤光层16设置于第一绝缘层125与公共电极层121之间，此时步骤S8中所形成的过孔还需要贯穿彩色滤光层16和黑色矩阵123；此外还可以将彩色滤光层16设置于第一绝缘层125与第二基板12之间，此时，步骤S8中的过孔无需对第一绝缘层125和黑色矩阵123进行贯穿，可有效减小过孔的深度以及主隔垫物15的高度，降低第一基板11和第二基板12对盒组装贴合的难度。
本揭示实施例的有益效果：本揭示实施例提供的显示面板的制作方法通过将触控电极和触控信号线分别设置于第二基板和第一基板上，同时利用导电的主隔垫物将触控电极和触控信号线导通，从而消除公共电极对触控电极信号的屏蔽，并将背光模组设置于第一基板远离第二基板的一侧，以提高背光模组的光线透过率，提升显示面板的亮度。
综上所述，虽然本揭示以优选实施例揭露如上，但上述优选实施例并非用以限制本揭示，本领域的普通技术人员，在不脱离本揭示的精神和范围内，均可作各种更动与润饰，因此本揭示的保护范围以权利要求界定的范围为基准。

Claims (17)

  1. 一种显示面板，包括背光模组、相对设置的第一基板和第二基板，以及设置于所述第一基板和所述第二基板之间的液晶层，所述背光模组设置于所述第一基板远离所述第二基板的一侧；
    所述第一基板靠近所述第二基板的一侧上设有像素电极层以及多条触控信号线；
    所述第二基板靠近所述第一基板的一侧上设有公共电极层，所述公共电极层和所述第二基板之间设有多个触控电极；
    其中，所述第一基板和所述第二基板之间还设有多个导电的主隔垫物，所述主隔垫物的两端分别与所述触控电极和所述触控信号线连接。
  2. 如权利要求1所述的显示面板，其中，多个所述触控电极沿第一方向和第二方向在所述第二基板上排布形成触控电极阵列。
  3. 如权利要求2所述的显示面板，其中，所述触控电极为块状电极，并且所述触控电极的平面尺寸介于3*3mm~10*10mm之间。
  4. 如权利要求2所述的显示面板，其中，每一所述触控电极连接至少一个所述主隔垫物。
  5. 如权利要求2所述的显示面板，其中，所述显示面板包括多个透光子区和非透光子区，所述第二基板靠近所述第一基板的一侧上还设有多个黑色矩阵，所述黑色矩阵和所述主隔垫物均设置于所述非透光子区内。
  6. 如权利要求5所述的显示面板，其中，所述第一基板靠近所述第二基板一侧还设有多个辅助隔垫物，所述辅助隔垫物位于所述非透光子区内，并且与所述主隔垫物的材料相同。
  7. 如权利要求5所述的显示面板，其中，所述公共电极层与所述触控电极之间设有第一绝缘层，所述主隔垫物通过贯穿所述公共电极层和所述第一绝缘层的过孔与所述触控电极连接。
  8. 如权利要求7所述的显示面板，其中，所述显示面板还包括彩色滤光层，所述彩色滤光层设置于所述第一基板靠近所述第二基板的一侧或者设置于所述第二基板靠近所述第一基板的一侧。
  9. 如权利要求1所述的显示面板，其中，所述第一基板靠近所述第二基板一侧还设有多个薄膜晶体管，所述薄膜晶体管包括栅极线层、有源层、源电极和漏电极，所述触控信号线与所述源电极以及所述漏电极的材料相同，并设置于同一层。
  10. 一种显示面板，包括背光模组、相对设置的第一基板和第二基板，以及设置于所述第一基板和所述第二基板之间的液晶层，所述背光模组设置于所述第一基板远离所述第二基板的一侧；
    所述第一基板靠近所述第二基板的一侧上设有像素电极层以及多条触控信号线；
    所述第二基板靠近所述第一基板的一侧上设有彩色滤光层、公共电极层、第一绝缘层以及多个触控电极，所述彩色滤光层位于所述第二基板和所述第一绝缘层之间，所述公共电极层位于所述第一绝缘层远离所述第二基板的一侧上，多个所述触控电极位于所述彩色滤光层与所述第一绝缘层之间；
    其中，所述第一基板和所述第二基板之间还设有多个导电的主隔垫物，所述主隔垫物的一端与所述触控信号线连接，所述主隔垫物的另一端通过贯穿所述公共电极层和所述第一绝缘层的过孔与所述触控电极连接。
  11. 如权利要求10所述的显示面板，其中，多个所述触控电极沿第一方向和第二方向在所述第二基板上排布形成触控电极阵列。
  12. 如权利要求11所述的显示面板，其中，所述触控电极为块状电极，并且所述触控电极的平面尺寸介于3*3mm~10*10mm之间。
  13. 如权利要求11所述的显示面板，其中，每一所述触控电极连接至少一个所述主隔垫物。
  14. 如权利要求11所述的显示面板，其中，所述显示面板包括多个透光子区和非透光子区，所述第二基板靠近所述第一基板的一侧上还设有多个黑色矩阵，所述黑色矩阵和所述主隔垫物均设置于所述非透光子区内。
  15. 如权利要求14所述的显示面板，其中，所述第一基板靠近所述第二基板一侧还设有多个辅助隔垫物，所述辅助隔垫物位于所述非透光子区内，并且与所述主隔垫物的材料相同。
  16. 如权利要求10所述的显示面板，其中，所述第一基板靠近所述第二基板一侧还设有多个薄膜晶体管，所述薄膜晶体管包括栅极线层、有源层、源电极和漏电极，所述触控信号线与所述源电极以及所述漏电极的材料相同，并设置于同一层。
  17. 一种显示面板的制作方法，包括：
    提供第一基板，在所述第一基板上沉积第一金属层，刻蚀所述第一金属层形成栅极线层；
    在所述第一基板上形成栅极绝缘层，并在所述栅极绝缘层上形成有源层；
    在所述栅极绝缘层上沉积第二金属层，刻蚀所述第二金属层，形成源电极、漏电极以及触控信号线；
    在所述第一基板靠近所述第二基板一侧形成像素电极层；
    在所述第一基板靠近所述第二基板的一侧形成多个导电的主隔垫物；
    提供第二基板，在所述第二基板上沉积第三金属层，刻蚀所述第三金属层，形成多个触控电极；
    在所述第二基板上沉积形成第一绝缘层，所述第一绝缘层覆盖所述触控电极；
    在所述第一绝缘层远离所述第二基板一侧形成公共电极层，刻蚀所述公共电极层和第一绝缘层，形成暴露出部分所述触控电极的过孔；以及
    将所述第一基板和所述第二基板对盒贴合。
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