WO2018120693A1 - 柔性触摸屏及制作方法、显示屏及制作方法以及显示设备 - Google Patents

柔性触摸屏及制作方法、显示屏及制作方法以及显示设备 Download PDF

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Publication number
WO2018120693A1
WO2018120693A1 PCT/CN2017/090447 CN2017090447W WO2018120693A1 WO 2018120693 A1 WO2018120693 A1 WO 2018120693A1 CN 2017090447 W CN2017090447 W CN 2017090447W WO 2018120693 A1 WO2018120693 A1 WO 2018120693A1
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Prior art keywords
area
flexible
foldable
region
touch screen
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PCT/CN2017/090447
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English (en)
French (fr)
Inventor
史世明
Original Assignee
京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to KR1020187002627A priority Critical patent/KR102058548B1/ko
Priority to US15/746,796 priority patent/US10747344B2/en
Priority to EP17829906.1A priority patent/EP3564799A1/en
Priority to JP2018504202A priority patent/JP7107833B2/ja
Publication of WO2018120693A1 publication Critical patent/WO2018120693A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • 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
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • the present application relates to the field of display, and in particular to a flexible touch screen and a method of fabricating the same, a flexible display screen and a display method thereof, and a display device including the flexible display screen.
  • Flexible display is a hot technical direction in recent years.
  • electronic paper, organic light emitting diode (OLED), and reflective liquid crystal can be used to achieve flexible display.
  • the active matrix organic light emitting diode (AMOLED) is more advantageous for making thin and flexible devices, and has the advantages of active illumination, good display effect, and high contrast, so it is also the most in flexible display technology.
  • the flexible display has a multi-layer stack structure, it is necessary to set the most critical devices (such as TFT, OLED, etc.) in the middle layer of the stacked structure, thereby minimizing the force.
  • the touch screen When the touch screen is placed on the upper side of the display screen, the touch screen is farther away from the middle layer, so the requirements for the material for making the touch screen are higher.
  • Touch screens in the prior art typically use materials such as ITO, metal, inorganic insulating layers, and the like. These materials are not tolerant to bending, making touch screens containing these materials susceptible to damage when bent.
  • the present application proposes a novel flexible display screen.
  • partitioning the display not only can different display modes be used when opening and folding the display to avoid erroneous operations, but also the touch screen in the display can be protected from being damaged when bent.
  • a flexible touch screen includes: a first area including touch electrodes and cross-distribution a first electrode that is non-foldable; and a second region adjacent to the first region, the second region includes touch electrodes and detection electrodes that are parallel to each other, and the second region is foldable.
  • the second area may be located in a foldable area of the flexible touch screen.
  • the first area may be located at two side regions of the flexible touch screen, and the second area may be located at a central area of the flexible touch screen.
  • the first region comprises a two-layer conductive film or a single-layer conductive film having a bridge structure; and the second region comprises a single-layer conductive film.
  • the touch electrodes and the detecting electrodes in the first region may be vertically distributed to each other.
  • the extending direction of the touch electrode and the detecting electrode in the second region may be parallel to a bending axis of the foldable region of the flexible touch screen.
  • the material of the touch electrode or the detecting electrode is one of indium tin oxide, silver nanowire, metal, carbon nanotube, graphene or a combination thereof.
  • the second region since the second region includes the touch electrodes and the detecting electrodes which are distributed in parallel with each other, it is not easily damaged when the flexible touch screen according to the present application is bent.
  • a flexible display screen comprising a flexible touch screen according to any of the above embodiments.
  • a display method for a flexible display screen wherein the flexible display screen includes a foldable area disposed at a central portion and is not configurable on both sides A folded area, and the foldable area includes touch electrodes and detection electrodes that are distributed in parallel with each other.
  • the display method includes displaying the flexible display screen in full screen when the flexible display screen is not bent, and at least one of the non-foldable regions disposed on both sides is not displayed when the flexible display screen is bent.
  • one of the non-foldable areas disposed on both sides is not displayed, and the other of the non-foldable areas disposed on both sides and the foldable area disposed at the central portion are maintained Display, and all display content when displayed in full screen is remapped to the portion of the flexible display that remains displayed.
  • the flexible display screen when bent, it is not set on both sides.
  • the folded area is not displayed, and the foldable area set in the center portion remains displayed.
  • the foldable area displays time or customized information.
  • the flexible display screen according to the present application is divided into a foldable area and a non-foldable area, and the foldable area includes touch electrodes and detection electrodes that are distributed in parallel with each other. Therefore, when the flexible display screen according to the present application is folded, the case where the foldable area is damaged is less likely to occur. Moreover, when the flexible display screen according to the present application is bent, at least one of the non-foldable regions provided on both sides may not be displayed, and thus power can be further saved.
  • a display device comprising a flexible display screen according to any of the above embodiments.
  • a method of fabricating a flexible touch screen comprising the steps of: fabricating a first region, the first region comprising touch electrodes and detection electrodes distributed across each other, the first region being Folding; and fabricating a second region adjacent to the first region, the second region comprising touch electrodes and detection electrodes distributed in parallel with each other, the second region being foldable.
  • the step of fabricating the first region may include vertically arranging touch electrodes and detection electrodes in the first region.
  • the step of fabricating the second region may include: setting a touch electrode and a detecting electrode in the second region such that a direction of extension is parallel to a bending axis of the foldable region of the flexible touch screen.
  • the step of fabricating the first region may include forming the first region on two side regions of the flexible touch screen, and wherein the step of fabricating the second region may include: The second area is formed in a central area of the flexible touch screen.
  • the first region comprises a two-layer conductive film or a single-layer conductive film having a bridge structure; and the second region comprises a single-layer conductive film.
  • Figure 1 schematically shows a stack structure of a display screen
  • FIG. 2 schematically shows the structure of a flexible display screen according to an embodiment of the present application
  • FIG. 3 schematically illustrates the structure of a first region of a flexible touch screen according to an embodiment of the present application
  • FIG. 4 schematically illustrates a second flexible touch screen in accordance with an embodiment of the present application.
  • Figure 5 is a schematic cross-sectional view showing a flexible display screen in a folded state in accordance with one embodiment of the present application
  • FIG. 6 schematically illustrates a structure of a flexible touch screen according to an embodiment of the present application
  • Figure 7 is a schematic illustration of the operational state of a flexible display screen when bent, in accordance with one embodiment of the present application.
  • first and second are used to describe a plurality of members, components, regions, layers and/or portions in the various embodiments of the present application, these components, components, regions, layers and/or Or part of it should not be limited by these terms. These terms are only used to distinguish one component, component, region, layer, Thus, a member, component, region, layer or portion referred to as a first member, a first component, a first region, a first layer or a first portion in an embodiment may also be referred to as a second member, a second component, a second Zone, second layer or second part without departing from the concept of the application.
  • the present application proposes a flexible touch screen.
  • the flexible touch screen includes: a first area including touch electrodes and detection electrodes distributed across each other, the first area being unfoldable; and a second area adjacent to the first area
  • the second area includes touch electrodes and detection electrodes that are distributed in parallel with each other, and the second area is foldable.
  • the touch electrode may include a plurality of first electrodes, and a first conductive connector is disposed between adjacent first electrodes of the same touch electrode.
  • the detecting electrode may also include a plurality of second electrodes, and a second conductive connector is disposed between adjacent second electrodes of the same detecting electrode.
  • the second region since the second region includes the touch electrodes and the detecting electrodes which are distributed in parallel with each other, it is not easily damaged when the flexible touch screen according to the present application is bent.
  • the present application also proposes a flexible display screen comprising a flexible touch screen in accordance with the present application.
  • the present application also proposes a display method for a flexible display screen according to the present application, wherein the flexible display screen includes a foldable area disposed at a central portion and a non-foldable area disposed at both sides, and the foldable The area includes touch electrodes and detection electrodes that are distributed in parallel with each other.
  • the display method includes displaying the flexible display screen in full screen when the flexible display screen is not bent, and at least one of the non-foldable regions disposed on both sides is not displayed when the flexible display screen is bent.
  • the application also proposes a display device comprising a flexible display screen according to the present application.
  • the present application also provides a method for fabricating a flexible touch screen, comprising the steps of: fabricating a first region, the first region comprising touch electrodes and detection electrodes distributed across each other, the first region being non-foldable; and a second region adjacent to the first region, the second region including touch electrodes and detection electrodes distributed in parallel with each other, the second region being foldable.
  • the flexible display screen according to the present application is divided into a foldable area and a non-foldable area, and the foldable area includes touch electrodes and detection electrodes that are distributed in parallel with each other. Therefore, when the flexible display screen according to the present application is folded, the case where the foldable area is damaged is less likely to occur. Moreover, when the flexible display screen according to the present application is bent, at least one of the non-foldable regions provided on both sides may not be displayed, and thus power can be further saved.
  • Fig. 1 schematically shows a stack structure of a display screen.
  • the stacked structure of the flexible display screen may include, for example, a first functional layer, a touch screen, a second functional layer, a display screen, and a third functional layer.
  • the first functional layer is the uppermost layer facing the user, and may be a protective layer having functions such as scratch resistance, anti-reflection or oil stain resistance.
  • the first functional layer can protect the flexible display from being scratched, reduced in reflection, and not contaminated by fingerprints, oil, and the like.
  • the touch screen can be located below the first functional layer for implementing the touch function.
  • the second functional layer may be located under the touch screen and may be a layer having an anti-reflection function (such as a circular polarizer), or may be an adhesive layer having a function of bonding a touch screen and a display screen.
  • the display screen may be located below the second functional layer and may include an AMOLED, an electronic paper or a reflective liquid crystal device and its driving circuit.
  • the third functional layer can be located under the display screen and is the lowermost protective layer.
  • the third functional layer can be made of a film having a supporting function, and can also have functions of heat dissipation, antistatic, anti-electromagnetic interference and the like.
  • the exemplary stacked structure of the flexible display screen illustrated in FIG. 1 includes first to third functional layers and a touch screen and a display screen disposed between the respective functional layers
  • the present application is not limited thereto.
  • a person skilled in the art may set a functional layer for implementing other functions in the flexible display screen as needed, or may implement a function implemented by at least one of the functional layers by a touch screen and/or a display screen.
  • the technical solutions of the present application are intended to cover all possible various modifications and changes.
  • FIG. 2 schematically illustrates the structure of a flexible display screen in accordance with one embodiment of the present application.
  • a touch screen is divided into a left side area, a center area, and a right side area. Accordingly, the display screen is also divided into a left side area, a center area, and a right side area corresponding to the touch screen.
  • the left area of the display screen corresponds to the left area of the touch screen
  • the central area of the display screen corresponds to the central area of the touch screen
  • the right side area of the display screen corresponds to the right side area of the touch screen.
  • the left side area and the right side area may be referred to as side areas.
  • the left and right regions of the touch screen of FIG. 2 may also be referred to as a first region, and the central region of the touch screen may also be referred to as a second region.
  • the first area of the touch screen is an unfoldable area
  • the second area of the touch screen is a foldable area.
  • the present application is not limited thereto.
  • a person skilled in the art can arbitrarily set the areas of the first area and the second area as needed.
  • a second area is disposed between the two first areas, the present application is not limited thereto.
  • Those skilled in the art can set any number of first and second regions as needed.
  • FIG. 3 schematically illustrates the structure of a first region of a flexible touch screen in accordance with one embodiment of the present application.
  • the first area of the flexible touch screen may be To include the left area and the right area.
  • the first region may include a double layer conductive film.
  • the touch electrode TX is located in one of the conductive films, the detecting electrode RX is located in the other conductive film, and the touch electrode TX and the detecting electrode RX are perpendicularly wired to each other.
  • the touch electrodes L_TX1, L_TX2, L_TX3, L_TX4, ... are perpendicular to the detection electrodes L_RX1, L_RX2, L_RX3, L_RX4, ....
  • the touch electrodes R_TX1, R_TX2, R_TX3, R_TX4, ... are perpendicular to the detection electrodes R_RX1, R_RX2, R_RX3, R_RX4, ....
  • the left and right areas can be designed relatively independently.
  • the left and right areas of the same size or different sizes can be designed according to screen resolution and touch performance requirements.
  • ITO, silver nanowires, metals, carbon nanotubes, graphene, and the like can be used as the conductive material for fabricating the first region in the touch screen.
  • the first region of the touch screen having a double-layer conductive film is merely an exemplary embodiment, and the application is not limited thereto.
  • the first region of the touch screen may also employ a single-layer conductive film having a cross-bridge structure.
  • FIG. 4 schematically illustrates the structure of a second region of a flexible touch screen in accordance with one embodiment of the present application.
  • the second region of the flexible touch screen may include a single layer of conductive film layer.
  • the single-layer conductive film is provided with touch electrodes and detection electrodes that are distributed in parallel with each other.
  • the second area may be located in a central area of the touch screen.
  • the second area may be located in the foldable area of the flexible touch screen, and the extending direction of the touch electrode TX and the detecting electrode RX in the second area may be parallel to the bending axis of the foldable area.
  • Fig. 5 schematically shows a cross-sectional view of a flexible display screen in a folded state in accordance with one embodiment of the present application.
  • the flexible display screen is in a folded state, and the folded area is located in the second area.
  • the second area may be set to be slightly larger than the folded area, or may be set to be the same as or smaller than the folded area according to actual conditions.
  • the left side area of the flexible display screen may be the same or different from the area of the right side area.
  • FIG. 6 schematically illustrates the structure of a flexible touch screen in accordance with one embodiment of the present application.
  • the second region located at the center of the flexible touch screen includes a single layer of conductive film layer structure.
  • the single-layer conductive film is provided with touch electrodes and detection electrodes distributed in parallel with each other pole.
  • the extending directions of the touch electrodes C_TX1, C_TX2 and the detecting electrodes C_RX1, C_RX2 in the second region are parallel to the bending axis of the foldable region of the flexible touch screen.
  • the touch electrodes and the detecting electrodes disposed in the single-layer conductive film of the second region of the touch screen are disposed in parallel with each other, and the extending direction thereof is parallel to the bending axis of the foldable region of the flexible touch screen. Therefore, when the flexible display screen according to the present application is folded, the case where the foldable area is damaged is less likely to occur.
  • the flexible display screen when the flexible display screen is not bent, the flexible display screen can be displayed in full screen, and when the flexible display screen is bent, the non-foldable area (ie, the first area) is disposed on both sides. At least one of them may not be displayed.
  • one of the non-foldable areas disposed on both sides is not displayed (eg, the right side area), and the other of the non-foldable areas disposed on both sides (eg, The left side area and the foldable area provided in the central portion remain displayed, and all display contents at the time of full screen display are remapped to the portion of the flexible display that remains displayed.
  • the non-foldable areas disposed on both sides are not displayed, and the foldable area disposed at the center portion remains displayed.
  • Figure 7 is a schematic illustration of the operational state of a flexible display screen when bent, in accordance with one embodiment of the present application.
  • the first area eg, including the left side area and the right side area
  • the second area eg, the center area
  • the control unit maps the coordinates of the touch points from the first area and the second area, respectively, into the coordinate system of the entire display screen, thereby forming coordinate positions of the touch points on the entire display screen.
  • a portion of the screen can be closed while another portion of the screen can continue to remain displayed.
  • the left and center areas are displayed, while the right area is not displayed.
  • the touch function of the right area can be turned off, that is, the touch electrode TX/detection electrode RX stops scanning, which can save power.
  • the touch point coordinates of the left area and the central area are remapped to the display screen to obtain the coordinate position of the corresponding touch point.
  • the zoom of the display screen may not be performed when a part of the screen is closed.
  • the left area can be used as the main display area
  • the central area can be used as an independently controlled central display area for additional functions.
  • the central display area can display time or customized information, and the like.
  • the flexible display screen of the present application various display schemes in a folded state can be realized as needed, with flexibility.
  • the flexible display screen according to the present application is bent, at least one of the non-foldable regions disposed on both sides may not be displayed, and thus power can be further saved.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)
  • Liquid Crystal (AREA)

Abstract

一种柔性触摸屏，包括：第一区域，该第一区域包括相互交叉分布的触控电极（L_TX1, L_TX2, L_TX3, L_TX4,R_TX1, R_TX2, R_TX3, R_TX4）和检测电极(L_RX1, L_RX2, L_RX3, L_RX4, R_RX1, R_RX2, R_RX3, R_RX4)，第一区域是不可折叠的；以及与第一区域相邻的第二区域，第二区域包括相互平行分布的触控电极(C_TX1,C_TX2)和检测电极(C_RX1,C_RX2)，第二区域是可折叠的。一种柔性显示屏、显示设备、用于柔性显示屏的显示方法和制作柔性触摸屏的方法。

Description

柔性触摸屏及制作方法、显示屏及制作方法以及显示设备
相关申请
本申请要求享有2016年12月29日提交的中国发明专利申请No.201611246021.7的优先权，其全部公开内容通过引用并入本文。
技术领域
本申请涉及显示领域，尤其涉及柔性触摸屏及其制作方法、柔性显示屏及其显示方法以及包括所述柔性显示屏的显示设备。
背景技术
柔性显示是近几年较热点的技术方向，例如电子纸、有机发光二极管(OLED)、反射式液晶都可用于实现柔性显示。特别地，有源矩阵有机发光二极管(AMOLED)更有利于制作成薄形化、柔性化的器件，同时还具有主动发光、显示效果佳、对比度高的优点，因此在柔性显示技术中也最有发展前景。随着柔性显示技术的发展，柔性AMOLED的可弯曲半径越来越小，目前已经能够实现可折叠的柔性显示。
由于柔性显示屏具有多层堆叠结构，需要将最关键的器件(如TFT、OLED等)设置在堆叠结构的中间层，从而使其受力最小。当触摸屏设置在显示屏的上面时，触摸屏距离中间层较远，因此对制作触摸屏的材料的要求会更高。现有技术中的触摸屏通常会采用ITO、金属、无机绝缘层等材料。这些材料对弯曲不耐受，从而使得包含这些材料的触摸屏在弯曲时容易被损坏。
发明内容
为了克服触摸屏在弯曲时容易损坏的问题，本申请提出了一种新型的柔性显示屏。通过对显示屏进行分区，不仅可以在打开与折叠显示屏时采用不同的显示模式避免误操作，而且能够保护显示屏中的触摸屏在弯曲时不被损坏。
根据本申请的一个方面，提出了一种柔性触摸屏。所述柔性触摸屏包括：第一区域，所述第一区域包括相互交叉分布的触控电极和检 测电极，所述第一区域是不可折叠的；以及与所述第一区域相邻的第二区域，所述第二区域包括相互平行分布的触控电极和检测电极，所述第二区域是可折叠的。
根据一个实施例，所述第二区域可以位于所述柔性触摸屏的可折叠区域。
根据一个实施例，所述第一区域可以位于所述柔性触摸屏的两个侧部区域，并且所述第二区域可以位于所述柔性触摸屏的中央区域。
根据一个实施例，所述第一区域包括双层导电膜或者具有跨桥结构的单层导电膜；并且所述第二区域包括单层导电膜。
根据一个实施例，所述第一区域中的触控电极和检测电极可相互垂直地分布。
根据一个实施例，所述第二区域中的触控电极和检测电极的延伸方向可平行于所述柔性触摸屏的可折叠区域的弯曲轴。
根据一个实施例，触控电极或检测电极的材料为氧化铟锡、银纳米线、金属、碳纳米管、石墨烯中的一种或其组合。
在根据本申请的柔性触摸屏中，由于第二区域包括相互平行分布的触控电极和检测电极，因此在根据本申请的柔性触摸屏弯曲时不容易被损坏。
根据本申请的另一个方面，提出了一种柔性显示屏，包括根据上述任一个实施例所述的柔性触摸屏。
根据本申请的另一个方面，提出了一种用于根据上述实施例所述的柔性显示屏的显示方法，其中所述柔性显示屏包括设置在中央部分的可折叠区域以及设置在两侧的不可折叠区域，并且所述可折叠区域包括相互平行分布的触控电极和检测电极。所述显示方法包括：当柔性显示屏没有发生弯曲时，所述柔性显示屏全屏显示，并且当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的至少其中之一不进行显示。
根据一个实施例，当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的一个不进行显示，设置在两侧的不可折叠区域中的另一个和设置在中央部分的可折叠区域保持显示，并且在全屏显示时的全部显示内容重新映射至所述柔性显示屏的保持显示的部分。
根据一个实施例，当柔性显示屏发生弯曲时，设置在两侧的不可 折叠区域都不进行显示，设置在中央部分的可折叠区域保持显示。
根据一个实施例，所述可折叠区域显示时间或定制信息。
根据本申请的柔性显示屏被划分为可折叠区域和不可折叠区域，并且可折叠区域包括相互平行分布的触控电极和检测电极。因此，在根据本申请的柔性显示屏折叠时，不容易出现可折叠区域损坏的情况。而且，当根据本申请的柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的至少其中之一可以不进行显示，因此可以进一步节省电力。
根据本申请的另一个方面，提出了一种显示设备，包括根据上述任一个实施例所述的柔性显示屏。
根据本申请的另一个方面，提出了一种制作柔性触摸屏的方法，包括步骤：制作第一区域，所述第一区域包括相互交叉分布的触控电极和检测电极，所述第一区域是不可折叠的；以及制作与所述第一区域相邻的第二区域，所述第二区域包括相互平行分布的触控电极和检测电极，所述第二区域是可折叠的。
根据一个实施例，制作所述第一区域的步骤可以包括：相互垂直地布置所述第一区域中的触控电极和检测电极。
根据一个实施例，制作所述第二区域的步骤可以包括：设置所述第二区域中的触控电极和检测电极，使其延伸方向平行于所述柔性触摸屏的可折叠区域的弯曲轴。
根据一个实施例，制作所述第一区域的步骤可以包括：将所述第一区域形成在所述柔性触摸屏的两个侧部区域，并且其中，制作所述第二区域的步骤可以包括：将所述第二区域形成在所述柔性触摸屏的中央区域。
根据一个实施例，所述第一区域包括双层导电膜或者具有跨桥结构的单层导电膜；并且所述第二区域包括单层导电膜。
附图说明
图1示意性地示出了显示屏的堆叠结构；
图2示意性地示出了根据本申请一个实施例的柔性显示屏的结构；
图3示意性地示出了根据本申请一个实施例的柔性触摸屏的第一区域的结构；
图4示意性地示出了根据本申请一个实施例的柔性触摸屏的第二 区域的结构；
图5示意性地示出了根据本申请一个实施例的柔性显示屏处于折叠状态下的截面图；
图6示意性地示出了根据本申请一个实施例的柔性触摸屏的结构；以及
图7示意性地示出了根据本申请一个实施例的柔性显示屏在弯曲时的工作状态。
具体实施方式
下文中，将参照附图详细描述本申请的各个示例性实施例。提供这些实施例是为了使得本申请是彻底和完整的，并且将把本申请构思的范围完全传递给本领域技术人员，而不是为了将本申请构思局限于所述实施例。为了清楚起见，在附图中可夸大示出元件的形状和尺寸。
为了方便描述，本文中可使用诸如“在......下方”、“在......上方”、“在......左侧”、“在......右侧”等的空间相对术语，以描述附图中所示的一个元件或特征与另一个(一些)元件或特征的关系。应该理解，空间相对术语旨在涵盖使用或操作中的装置的除图中所示的取向之外的不同取向。例如，如果图中的装置颠倒，则被描述为“在其它元件或特征下方”的元件将因此被取向为“在其它元件或特征上方”。
另外，虽然在本申请的各个实施例中使用术语例如“第一”和“第二”来描述多个构件、组件、区、层和/或部分，但是这些构件、组件、区、层和/或部分不应被这些术语限制。这些术语仅用于将一个构件、组件、区、层或部分与另一构件、组件、区、层或部分区分开。因此，在实施例中称作第一构件、第一组件、第一区、第一层或第一部分的构件、组件、区、层或部分也可称作第二构件、第二组件、第二区、第二层或第二部分，而没有脱离本申请的构思。
本申请提出了一种柔性触摸屏。所述柔性触摸屏包括：第一区域，所述第一区域包括相互交叉分布的触控电极和检测电极，所述第一区域是不可折叠的；以及与所述第一区域相邻的第二区域，所述第二区域包括相互平行分布的触控电极和检测电极，所述第二区域是可折叠的。
触控电极可以包含多个第一电极，且位于同一触控电极的相邻第一电极之间具有第一导电连接器。同理，检测电极也可以包含多个第二电极，且位于同一检测电极的相邻第二电极之间具有第二导电连接器。本领域技术人员应当知晓如何形成触控电极和检测电极，在此不再赘述。
在根据本申请的柔性触摸屏中，由于第二区域包括相互平行分布的触控电极和检测电极，因此在根据本申请的柔性触摸屏弯曲时不容易被损坏。
本申请还提出了一种柔性显示屏，包括根据本申请的柔性触摸屏。
本申请还提出了一种用于根据本申请的柔性显示屏的显示方法，其中所述柔性显示屏包括设置在中央部分的可折叠区域以及设置在两侧的不可折叠区域，并且所述可折叠区域包括相互平行分布的触控电极和检测电极。所述显示方法包括：当柔性显示屏没有发生弯曲时，所述柔性显示屏全屏显示，并且当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的至少其中之一不进行显示。
本申请还提出了一种显示设备，包括根据本申请的柔性显示屏。
本申请还提出了一种制作柔性触摸屏的方法，包括步骤：制作第一区域，所述第一区域包括相互交叉分布的触控电极和检测电极，所述第一区域是不可折叠的；以及制作与所述第一区域相邻的第二区域，所述第二区域包括相互平行分布的触控电极和检测电极，所述第二区域是可折叠的。
根据本申请的柔性显示屏被划分为可折叠区域和不可折叠区域，并且可折叠区域包括相互平行分布的触控电极和检测电极。因此，在根据本申请的柔性显示屏折叠时，不容易出现可折叠区域损坏的情况。而且，当根据本申请的柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的至少其中之一可以不进行显示，因此可以进一步节省电力。
图1示意性地示出了显示屏的堆叠结构。
如图1所示，柔性显示屏的堆叠结构可以包括，例如，第一功能层、触摸屏、第二功能层、显示屏和第三功能层。
第一功能层为面向用户的最上面的层，可以为具有抗划伤、防反射或防油污等功能的保护层。第一功能层可以保护柔性显示屏不被划伤、减少反射以及不被指纹、油污等污染。
触摸屏可位于第一功能层下面，用于实现触控功能。第二功能层可位于触摸屏下面，并且可以为具有防反射功能的层(如圆偏光片)，或者可以为具有粘结触摸屏和显示屏功能的粘结层。
显示屏可位于第二功能层下面，可以包括AMOLED、电子纸或反射式液晶器件及其驱动电路。第三功能层可位于显示屏下面，为最下层的保护层。第三功能层可以由具有支撑作用的膜材制成，还可以具有散热、防静电、防电磁干扰等功能。
虽然图1示出的柔性显示屏的示例性堆叠结构包括第一至第三功能层以及设置在各功能层之间的触摸屏和显示屏，然而本申请并不局限于此。本领域技术人员可以根据需要，在柔性显示屏中设置用于实现其他功能的功能层，或者可将各功能层中的至少之一所实现的功能由触摸屏和/或显示屏来实现。本申请的技术方案旨在涵盖所有可能的各种修改和改变。
图2示意性地示出了根据本申请一个实施例的柔性显示屏的结构。
如图2所示，根据本申请的实施例，触摸屏被划分为左侧区域、中央区域和右侧区域。相应地，显示屏也被划分为与触摸屏对应的左侧区域、中央区域和右侧区域。显示屏的左侧区域与触摸屏的左侧区域相对应，显示屏的中央区域与触摸屏的中央区域相对应，并且显示屏的右侧区域与触摸屏的右侧区域相对应。左侧区域和右侧区域可以被称为侧部区域。
图2中触摸屏的左侧区域和右侧区域也可以被称为第一区域，触摸屏的中央区域也可以被称为第二区域。根据本申请的实施例，触摸屏的第一区域是不可折叠的区域，而触摸屏的第二区域是可折叠的区域。
虽然图2中示意性地示出左侧区域和右侧区域面积相同，但是本申请并不局限于此。本领域技术人员可以根据需要任意设定第一区域和第二区域的面积。此外，虽然图2中示意性地示出了将一个第二区域设置在两个第一区域之间，但是本申请并不局限于此。本领域技术人员可以根据需要设置任意数量的第一区域和第二区域。
图3示意性地示出了根据本申请一个实施例的柔性触摸屏的第一区域的结构。
如图3所示，根据本申请一个实施例的柔性触摸屏的第一区域可 以包括左侧区域和右侧区域。第一区域可以包括双层导电膜。触控电极TX位于其中一层导电膜中，检测电极RX位于另一层导电膜中，并且触控电极TX和检测电极RX相互垂直地布线。
具体地，在左侧区域中，触控电极L_TX1、L_TX2、L_TX3、L_TX4......与检测电极L_RX1、L_RX2、L_RX3、L_RX4......相互垂直的布线。类似地，在右侧区域中，触控电极R_TX1、R_TX2、R_TX3、R_TX4......与检测电极R_RX1、R_RX2、R_RX3、R_RX4......相互垂直的布线。
左侧区域和右侧区域可以相对独立地设计。可以根据屏幕分辨率和触控性能要求来设计相同尺寸或不同尺寸的左侧区域和右侧区域。制作触摸屏中的第一区域的导电材料可以使用ITO、银纳米线、金属、碳纳米管、石墨烯等。
触摸屏的第一区域具有双层导电膜只是一个示例性实施例，本申请并不局限于此。可替换地，触摸屏的第一区域也可以采用具有跨桥结构的单层导电膜。
图4示意性地示出了根据本申请一个实施例的柔性触摸屏的第二区域的结构。
如图4所示，根据本申请一个实施例的柔性触摸屏的第二区域可以包括单层导电膜层。所述单层导电膜中设置有相互平行地分布的触控电极和检测电极。
根据本申请的实施例，第二区域可以位于触摸屏的中央区域。第二区域可以位于柔性触摸屏的可折叠区域，并且第二区域中触控电极TX和检测电极RX的延伸方向可平行于可折叠区域的弯曲轴。
图5示意性地示出了根据本申请一个实施例的柔性显示屏处于折叠状态下的截面图。
如图5所示，柔性显示屏处于折叠状态，折叠区域位于第二区域中。第二区域可以设置成比折叠区域略大，也可以根据实际情况，设置成与折叠区域相同或小于折叠区域。而且，根据产品设计，柔性显示屏的左侧区域可以与右侧区域的面积相同或不同。
图6示意性地示出了根据本申请一个实施例的柔性触摸屏的结构。
如图6所示，位于柔性触摸屏中央的第二区域包括单层导电膜层结构。所述单层导电膜中设置有相互平行地分布的触控电极和检测电 极。而且，第二区域中触控电极C_TX1、C_TX2和检测电极C_RX1、C_RX2的延伸方向平行于柔性触摸屏的可折叠区域的弯曲轴。
在根据本申请的柔性触摸屏中，设置在触摸屏的第二区域的单层导电膜中的触控电极和检测电极彼此平行设置，并且其延伸方向平行于柔性触摸屏的可折叠区域的弯曲轴。因此，在根据本申请的柔性显示屏折叠时，不容易出现可折叠区域损坏的情况。
根据本申请的实施例，当柔性显示屏没有发生弯曲时，所述柔性显示屏可进行全屏显示，并且当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域(即，第一区域)中的至少其中之一可以不进行显示。
在一个实施例中，当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的一个不进行显示(例如，右侧区域)，设置在两侧的不可折叠区域中的另一个(例如，左侧区域)和设置在中央部分的可折叠区域保持显示，并且在全屏显示时的全部显示内容重新映射至所述柔性显示屏的保持显示的部分。
在另一个实施例中，当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域都不进行显示，设置在中央部分的可折叠区域保持显示。
图7示意性地示出了根据本申请一个实施例的柔性显示屏在弯曲时的工作状态。
如图7所示，当左侧区域和右侧区域都不进行显示时，只有中央区域进行显示。这时可以将左侧区域和右侧区域的触摸功能也关闭，实现进一步的省电操作。
此外，在柔性显示屏处于非折叠状态时，第一区域(例如，包括左侧区域和右侧区域)和第二区域(例如，中央区域)可分别读取各自区域的触摸点的坐标位置，并将其反馈到控制单元(未示出)。控制单元将分别来自第一区域和第二区域的触摸点的坐标映射到整个显示屏的坐标系统中，从而形成在整个显示屏上的触摸点的坐标位置。
在柔性显示屏处于折叠状态时，与图7所示的示例不同，一部分屏幕可以关闭，而另一部分屏幕可继续保持显示。例如，在显示屏处于折叠状态时，左侧区域和中央区域进行显示，而右侧区域不显示。此时，可将右侧区域的触摸功能关闭，即触控电极TX/检测电极RX停止扫描，这样能起到省电的作用。此时，将左侧区域和中央区域的触摸点坐标重新映射到显示屏，以便获得相应的触摸点的坐标位置。可 替换地，在关闭一部分屏幕时，可以不进行显示屏的缩放。例如，左侧区域可作为主显示区域，中央区域可作为独立控制的中央显示区域以便实现附加功能。例如，中央显示区域可以显示时间或定制信息等。
根据本申请的柔性显示屏，可以根据需要实现折叠状态下的各种显示方案，具有灵活性。当根据本申请的柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的至少其中之一可以不进行显示，因此可以进一步节省电力。
虽然已经示出并说明了根据本申请的各个实施例，但本领域普通技术人员应当理解的是，可以对这些示例性实施例在形式和细节方面做出各种改变而不背离由所附权利要求书限定的本申请构思的精神和范围。

Claims (15)

  1. 一种柔性触摸屏，包括：
    第一区域，所述第一区域包括相互交叉分布的触控电极和检测电极，所述第一区域是不可折叠的；以及
    与所述第一区域相邻的第二区域，所述第二区域包括相互平行分布的触控电极和检测电极，所述第二区域是可折叠的。
  2. 根据权利要求1所述的柔性触摸屏，其中
    所述第二区域位于所述柔性触摸屏的可折叠区域。
  3. 根据权利要求2所述的柔性触摸屏，其中
    所述第一区域位于所述柔性触摸屏的两个侧部区域，并且所述第二区域位于所述柔性触摸屏的中央区域。
  4. 根据权利要求1所述的柔性触摸屏，其中，
    所述第一区域包括双层导电膜或者具有跨桥结构的单层导电膜；并且所述第二区域包括单层导电膜。
  5. 根据权利要求1所述的柔性触摸屏，其中，
    所述第一区域中的触控电极和检测电极相互垂直地分布。
  6. 根据权利要求5所述的柔性触摸屏，其中，
    所述第二区域中的触控电极和检测电极的延伸方向平行于所述柔性触摸屏的可折叠区域的弯曲轴。
  7. 根据权利要求1所述的柔性触摸屏，其中，
    触控电极或检测电极的材料为氧化铟锡、银纳米线、金属、碳纳米管、石墨烯中的一种或其组合。
  8. 一种柔性显示屏，包括根据权利要求1-7中任一项所述的柔性触摸屏。
  9. 一种用于柔性显示屏的显示方法，其中所述柔性显示屏包括设置在中央部分的可折叠区域以及设置在两侧的不可折叠区域，并且所述可折叠区域包括相互平行分布的触控电极和检测电极，所述显示方法包括：
    当柔性显示屏没有发生弯曲时，所述柔性显示屏全屏显示，并且
    当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的至少 其中之一不进行显示。
  10. 根据权利要求9所述的显示方法，其中，
    当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域中的一个不进行显示，设置在两侧的不可折叠区域中的另一个和设置在中央部分的可折叠区域保持显示，并且
    在全屏显示时的全部显示内容重新映射至所述柔性显示屏的保持显示的部分。
  11. 根据权利要求9所述的显示方法，其中，
    当柔性显示屏发生弯曲时，设置在两侧的不可折叠区域都不进行显示，设置在中央部分的可折叠区域保持显示。
  12. 根据权利要求11所述的显示方法，其中，
    所述可折叠区域显示时间或定制信息。
  13. 一种显示设备，包括根据权利要求8所述的柔性显示屏。
  14. 一种制作柔性触摸屏的方法，包括步骤：
    制作第一区域，所述第一区域包括相互交叉分布的触控电极和检测电极，所述第一区域是不可折叠的；以及
    制作与所述第一区域相邻的第二区域，所述第二区域包括相互平行分布的触控电极和检测电极，所述第二区域是可折叠的。
  15. 根据权利要求14所述的方法，其中，制作第一区域的步骤包括：
    相互垂直地布置所述第一区域中的触控电极和检测电极。
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