WO2017197940A1 - 显示装置及其制造方法 - Google Patents

显示装置及其制造方法 Download PDF

Info

Publication number
WO2017197940A1
WO2017197940A1 PCT/CN2017/073902 CN2017073902W WO2017197940A1 WO 2017197940 A1 WO2017197940 A1 WO 2017197940A1 CN 2017073902 W CN2017073902 W CN 2017073902W WO 2017197940 A1 WO2017197940 A1 WO 2017197940A1
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
display device
polyvinylidene fluoride
layer
fluoride film
Prior art date
Application number
PCT/CN2017/073902
Other languages
English (en)
French (fr)
Inventor
彭晓青
陈会顺
马力
王凯旋
袁洪亮
张勇
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/563,195 priority Critical patent/US20180188895A1/en
Publication of WO2017197940A1 publication Critical patent/WO2017197940A1/zh

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/043Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
    • G06F3/0433Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves in which the acoustic waves are either generated by a movable member and propagated within a surface layer or propagated within a surface layer and captured by a movable member
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13338Input devices, e.g. touch panels
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a display device and a method of fabricating the same.
  • the pressure-sensing touch display device has a display, a flat touch on the display panel, and a pressure sensing function perpendicular to the panel direction. It generally includes components with display functions, touch, and pressure sensing functions.
  • suitable integration solutions have not yet been formed in the field. As the market demands for display and cost increases, there is a high demand for the overall design, yield improvement and cost reduction of pressure-sensitive touch display products.
  • Embodiments of the present disclosure provide a display device and a method of fabricating the same that can solve the problem of how to provide an integrated solution, improve yield, and reduce cost.
  • a first aspect of the present disclosure provides a display device including: a substrate layer, a display panel on the substrate layer, a display panel cover on the display panel, wherein the display device A piezoelectric sensing layer disposed between the display panel cover and the base layer is also included.
  • the piezoelectric sensing layer comprises a polymeric piezoelectric material.
  • the piezoelectric polymer material comprises polyvinylidene fluoride.
  • the piezoelectric sensing layer is located between the display panel cover and the display panel.
  • the piezoelectric sensing layer is between the display panel and the substrate layer.
  • the display panel is a liquid crystal display panel
  • the base layer includes a backlight module.
  • the display panel is an organic light emitting diode display panel
  • the base layer comprises a substrate substrate.
  • the organic light emitting diode display panel is an active matrix organic light emitting diode display panel.
  • Another object of the present disclosure is to provide a display panel.
  • a second aspect of the present disclosure provides a display panel in which a piezoelectric sensing layer is disposed on a display side of the display panel or a side opposite to the display side.
  • a third aspect of the present disclosure provides a backlight module in which a piezoelectric sensing layer is disposed on a light emitting side of the backlight module.
  • Another object of the present disclosure is to provide a method of fabricating a display device.
  • a fourth aspect of the present disclosure provides a method of manufacturing a display device, comprising: providing a substrate layer on which a display panel is disposed, and a display panel cover is disposed on the display panel, wherein The method also includes disposing a piezoelectric sensing layer between the display panel cover and the substrate layer.
  • the piezoelectric sensing layer is between the display panel cover and the display panel.
  • the piezoelectric sensing layer is between the display panel and the substrate layer.
  • the setting the piezoelectric sensing layer comprises:
  • a transparent conductive oxide layer is provided on each of the upper and lower surfaces of the polyvinylidene fluoride film.
  • the desired length of the polyvinylidene fluoride film is about 3.5 to 5.5 times the length before the treatment, and the desired thickness of the polyvinylidene fluoride film is about 40 ⁇ m. 300 ⁇ m.
  • forming the polyvinylidene fluoride film is performed at a temperature of about 210 ° C to 250 ° C;
  • the stretching treatment is carried out at a temperature of about 60 to 85 ° C and a polarization electric field of about 40 to 60 MV / m.
  • the transparent conductive oxide layer comprises ITO, and the method further comprises:
  • the polyvinylidene fluoride film is bonded to the display panel or the substrate layer via a pressure sensitive adhesive.
  • FIG. 1 is a schematic view showing the structure of a display device in the prior art
  • FIG. 2(a) is a schematic diagram showing the structure of a display device according to an embodiment of the present disclosure
  • 2(b) is a flowchart of a method of fabricating a display device in accordance with an embodiment of the present disclosure
  • 3(a) is a schematic diagram showing the structure of a display device according to another embodiment of the present disclosure.
  • FIG. 3(b) is a flowchart of a method of fabricating a display device in accordance with an embodiment of the present disclosure.
  • the terms “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom” and The derivative should refer to the public text.
  • the terms “overlay”, “on top of”, “positioned on” or “positioned on top of” mean that a first element, such as a first structure, exists in a second element, such as a second structure. Above, wherein an intermediate element such as an interface structure may exist between the first element and the second element.
  • the term “contacting” means connecting a first element such as a first structure and a second element such as a second structure, with or without other elements at the interface of the two elements.
  • the display device includes a base layer 3, a display panel 2 on the base layer 3, and a display panel cover 1 on the display panel 2.
  • additional separate components need to be set up to complete the pressure sensing.
  • a display device provided by an embodiment of the present disclosure includes a substrate layer, a display panel on the substrate layer, a display panel cover on the display panel, and a piezoelectric sensing layer disposed between the display panel cover and the substrate layer. The details will be described below with reference to FIGS. 2 and 3.
  • FIG. 2(a) is a schematic diagram showing the structure of a display device according to an embodiment of the present disclosure.
  • a piezoelectric sensing layer is provided between the display panel cover and the display panel.
  • a display panel 2 is provided on the base layer 3
  • a piezoelectric sensing layer 4 is provided on the display panel 2
  • a display panel cover 1 is provided on the piezoelectric sensing layer.
  • the display panel may be an LCD panel or an OLED panel.
  • the base layer includes a backlight module of the LCD.
  • the display panel is an OLED surface
  • the base layer comprises a substrate substrate.
  • the piezoelectric sensing layer may include a piezoelectric polymer material.
  • a piezoelectric polymer material for example, polyvinylidene fluoride (PVDF) can be used for the piezoelectric layer. Since the polymer piezoelectric film has good transparency, it does not affect the normal display of the existing panel. Further, the polymer piezoelectric material has good processing characteristics.
  • PVDF polyvinylidene fluoride
  • FIG. 2(b) is a flow chart of a method of fabricating a display device in accordance with an embodiment of the present disclosure. As shown in Figure 2(b), the method includes:
  • Step 201 Providing a substrate layer.
  • Step 202 Set a display panel.
  • Step 203 Form a piezoelectric sensing layer.
  • the step 203 of forming the piezoelectric sensing layer may further include a step 2031 of forming a polyvinylidene fluoride film, a step 2032 of performing a stretching process, and a step 2033 of providing a transparent conductive oxide layer.
  • Step 204 Set the display panel cover.
  • the method for forming the piezoelectric sensing layer includes:
  • a polyvinylidene fluoride film is formed at a temperature of about 210 ° C to 250 ° C.
  • the polyvinylidene fluoride film is subjected to a stretching treatment at a temperature of about 60 to 85 ° C and a polarization electric field of about 40 to 60 MV / m so that the length of the polyvinylidene fluoride film is about 3.5 before the treatment. ⁇ 5.5 times, and the thickness of the polyvinylidene fluoride film is in the range of about 40 ⁇ m to 300 ⁇ m.
  • a transparent conductive oxide layer is provided on the upper and lower surfaces of the polyvinylidene fluoride film under a vacuum of about 3.5 ⁇ 10 -3 Ps or less, wherein the transparent conductive oxide layer has a thickness ranging from about 40 nm to 200 nm.
  • the transparent conductive oxide may be ITO. It is also possible to separately extract two electrodes from both surfaces of the polyvinylidene fluoride film.
  • a pressure sensitive adhesive (for example, a pressure sensitive adhesive) is provided on at least one surface of the polyvinylidene fluoride film.
  • the polyvinylidene fluoride film is then bonded to the display panel via a pressure sensitive adhesive.
  • a pressure sensitive adhesive for example, a pressure sensitive adhesive
  • polyvinylidene fluoride can be attached to the upper surface of the display panel by a bonding process, and the electrode of the polyvinylidene fluoride film can be connected to the signal receiving device.
  • the display panel is combined with the display panel cover such that the polyvinylidene fluoride film is positioned between the display panel and the display panel cover.
  • FIG. 3(a) is a schematic diagram showing the structure of a display device according to an embodiment of the present disclosure. Unlike the structure of Fig. 2(a), in Fig. 3(a), the piezoelectric sensing layer is located between the display panel and the substrate layer. As shown in FIG. 3(a), a piezoelectric sensing layer 4 is provided on the base layer 3, a display panel 2 is provided on the piezoelectric sensing layer 4, and a display panel cover 1 is provided on the display panel 2.
  • the display panel may be a liquid crystal (LCD) panel or an organic light emitting diode (OLED) panel.
  • the base layer includes a backlight module of the LCD.
  • the display panel is an OLED panel
  • the base layer includes a substrate substrate.
  • the piezoelectric sensing layer may include a piezoelectric polymer material.
  • a piezoelectric polymer material for example, polyvinylidene fluoride (PVDF) can be used for the piezoelectric layer. Since the polymer piezoelectric film has good transparency, it does not affect the normal display of the existing panel. Moreover, the piezoelectric polymer material has good processing characteristics.
  • PVDF polyvinylidene fluoride
  • FIG. 3(b) is a flowchart of a method of fabricating a display device in accordance with an embodiment of the present disclosure. As shown in Figure 3(b), the method includes:
  • Step 301 Providing a substrate layer.
  • Step 302 Form a piezoelectric sensing layer.
  • the step 302 of forming the piezoelectric sensing layer may further include a step 3021 of forming a polyvinylidene fluoride film, a step 3022 of performing a stretching process, and a step 3023 of providing a transparent conductive oxide layer.
  • Step 303 Set the display panel.
  • Step 304 Set the display panel cover.
  • the display panel By providing a piezoelectric sensing layer between the display panel cover and the substrate layer, the display panel integrates the pressure sensing function, which can be adapted to the needs of thinning and thinning of the mobile product, and has a simple process and high yield.
  • the method for forming the piezoelectric sensing layer includes:
  • a polyvinylidene fluoride film is formed at a temperature of about 210 ° C to 250 ° C.
  • the polyvinylidene fluoride film is subjected to a stretching treatment at a temperature of about 60 to 85 ° C and a polarization electric field of about 40 to 60 MV / m so that the length of the polyvinylidene fluoride film is about 3.5 before the treatment. ⁇ 5.5 times, and the thickness of the polyvinylidene fluoride film is in the range of about 40 ⁇ m to 300 ⁇ m.
  • a transparent conductive oxide layer is provided on the upper and lower surfaces of the polyvinylidene fluoride film under a vacuum of about 3.5 ⁇ 10 -3 Ps or less, wherein the thickness of the transparent conductive oxide layer ranges from about 40 nm to 200 nm.
  • the above settings can achieve good transparency and good piezoelectric sensing performance.
  • the transparent conductive oxide may be ITO. It is also possible to separately extract two electrodes from both surfaces of the polyvinylidene fluoride film.
  • a pressure sensitive adhesive (for example, a pressure sensitive adhesive) is provided on at least one surface of the polyvinylidene fluoride film.
  • the polyvinylidene fluoride film is then bonded to the substrate layer via a pressure sensitive adhesive.
  • polyvinylidene fluoride may be attached to the lower surface of the display panel by a bonding process, and the electrode of the polyvinylidene fluoride film may be connected to the signal receiving device. Then, on the side of the display panel provided with the polyvinylidene fluoride film, the display panel is bonded to the substrate layer such that the polyvinylidene fluoride film is positioned between the display panel and the substrate layer.
  • the display device may be a device having a display function, such as a display panel, a display, a television, a tablet, a mobile phone, a navigator, etc., which is not limited in this disclosure.
  • One embodiment of the present disclosure provides a display panel on which a piezoelectric sensing layer is disposed on a display side or a side opposite to the display side.
  • a further embodiment of the present disclosure provides a backlight module, and a piezoelectric sensing layer is disposed on a light emitting side of the backlight module.
  • the backlight module according to the embodiment of the present disclosure can integrate the pressure sensing function, is suitable for the needs of thinning and thinning of the mobile product, and has a simple process and a high yield.
  • a display panel having a pressure sensing function can be obtained.
  • the display panel integrates a pressure sensing function, which can be adapted to the needs of thinning and thinning of the mobile product, and The process is simple and the yield is high.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Nonlinear Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

一种显示装置及其制造方法,所述显示装置包括基底层(3),位于所述基底层(3)上的显示面板(2),位于所述显示面板(2)上的显示面板盖(1),其中,所述显示装置还包括设置在所述显示面板盖(1)和所述基底层(3)之间的压电感应层(4)。能使得显示器轻薄化。

Description

显示装置及其制造方法
相关申请的交叉引用
本申请要求于2016年05月19日递交的中国专利申请第201610334359.1号的优先权,在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开文本涉及显示技术领域,特别涉及一种显示装置及其制造方法。
背景技术
压力感应触控显示装置具备显示、显示面板上平面触控和垂直于面板方向压力感应功能。一般包括具有显示功能、触控、压力感应功能方面的组件。但目前领域中尚未形成合适的集成解决方案,随着市场对显示效果和成本要求的提高,对压力感应触控显示产品的整体设计、良率提高以及降低成本方面有较高的要求。
发明内容
本公开文本的实施例提供了一种显示装置及其制造方法,能够解决如何提供集成化的解决方案、提高良品率、降低成本的问题。
本公开文本的一个目的在于提供一种显示装置。
本公开文本的第一方面提供了一种显示装置,所述显示装置包括:基底层,位于所述基底层上的显示面板,位于所述显示面板上的显示面板盖,其中,所述显示装置还包括设置在所述显示面板盖和所述基底层之间的压电感应层。
在一个实施例中,所述压电感应层包括高分子压电材料。
可选地,所述高分子压电材料包括聚偏二氟乙烯。
在一个实施例中,,所述压电感应层位于所述显示面板盖和所述显示面板之间。
在一个实施例中,所述压电感应层位于所述显示面板和所述基底层之间。
可选地,所述显示面板为液晶显示面板,所述基底层包括背光模组。
可选地,所述显示面板为有机发光二极管显示面板,所述基底层包括衬底基材。
可选地,所述有机发光二极管显示面板为有源矩阵有机发光二极管显示面板。
本公开文本的另一个目的在于提供一种显示面板。
本公开文本的第二方面提供了一种显示面板,其中,在所述显示面板的显示侧或与所述显示侧相对的一侧上设置有压电感应层。
本公开文本的又一个目的在于提供一种背光模组。
本公开文本的第三方面提供了一种背光模组,其中,在所述背光模组的出光侧上设置有压电感应层。
本公开文本的另一个目的在于提供一种显示装置的制造方法。
本公开文本的第四方面提供了一种显示装置的制造方法,所述制造方法包括:提供基底层,在所述基底层上设置显示面板,在所述显示面板上设置显示面板盖,其中,所述方法还包括在所述显示面板盖和所述基底层之间设置压电感应层。
在一个实施例中,所述压电感应层位于所述显示面板盖和所述显示面板之间。
在一个实施例中,所述压电感应层位于所述显示面板和所述基底层之间。
可选地,设置所述压电感应层包括:
形成聚偏二氟乙烯膜;
对所述聚偏二氟乙烯膜进行拉伸处理,以使得所述聚偏二氟乙烯膜具有期望的长度和期望的厚度;
在所述聚偏氟乙烯膜的上下表面分别设置透明导电氧化物层。
可选地,所述聚偏二氟乙烯膜的所述期望的长度为处理之前的长度的约3.5~5.5倍,所述聚偏二氟乙烯膜的所述期望的厚度的范围约为40μm~300μm。
可选地,形成所述聚偏二氟乙烯膜是在约210℃~250℃的温度下进行的;
所述拉伸处理是在约60~85℃的温度和约40~60MV/m的极化电场下进行的。
可选地,所述透明导电氧化物层包括ITO,所述方法进一步包括:
在所述聚偏二氟乙烯膜的至少一个表面上设置压敏粘合剂;
经由压敏粘合剂,将所述聚偏二氟乙烯膜与所述显示面板或所述基底层结合。
附图说明
为了更清楚地说明本公开文本的实施例的技术方案,下面将对实施例的附图进行简要说明,应当知道,以下描述的附图仅仅涉及本公开文本的一些实施例,而非对本公开文本的限制,其中:
图1为现有技术中的显示装置的结构的示意图;
图2(a)为根据本公开文本的一个实施例的显示装置的结构的示意图;
图2(b)为根据本公开文本的一个实施例的显示装置的制造方法的流程图;
图3(a)为根据本公开文本的另一个实施例的显示装置的结构的示意图;
图3(b)为根据本公开文本的一个实施例的显示装置的制造方法的流程图。
具体实施方式
为了使本公开文本的实施例的目的、技术方案和优点更加清楚,下面 将接合附图,对本公开文本的实施例的技术方案进行清楚、完整的描述。显然,所描述的实施例是本公开文本的一部分实施例,而不是全部的实施例。基于所描述的本公开文本的实施例,本领域技术人员在无需创造性劳动的前提下所获得的所有其他实施例,也都属于本公开文本保护的范围。
当介绍本公开文本的元素及其实施例时,冠词“一”、“一个”、“该”和“所述”旨在表示存在一个或者多个要素。用语“包含”、“包括”、“含有”和“具有”旨在包括性的并且表示可以存在除所列要素之外的另外的要素。
出于下文表面描述的目的,如其在附图中被标定方向那样,术语“上”、“下”、“左”、“右”“垂直”、“水平”、“顶”、“底”及其派生词应涉及公开文本。术语“上覆”、“在……顶上”、“定位在……上”或者“定位在……顶上”意味着诸如第一结构的第一要素存在于诸如第二结构的第二要素上,其中,在第一要素和第二要素之间可存在诸如界面结构的中间要素。术语“接触”意味着连接诸如第一结构的第一要素和诸如第二结构的第二要素,而在两个要素的界面处可以有或者没有其它要素。
如图1所示,在现有技术中,显示装置包括基底层3、在基底层3上的显示面板2以及在显示面板2上的显示面板盖1。对于压力感应功能,需要设置另外的分离的组件来完成压力感应。
本公开文本的实施例所提供的显示装置包括:基底层,位于基底层上的显示面板,位于显示面板上的显示面板盖,以及设置在显示面板盖和基底层之间的压电感应层。下面将结合图2和图3进行具体说明。
图2(a)为根据本公开文本的一个实施例的显示装置的结构的示意图。在图2(a)的结构中,在显示面板盖和显示面板之间设置有压电感应层。如图2(a)所示,在基底层3上设置有显示面板2,在显示面板2上设置有压电感应层4,在压电感应层上设置有显示面板盖1。通过在所述显示面板盖和所述基底层之间设置压电感应层,使得显示面板集成压力感应功能,能够适合移动产品薄型化和轻薄化的需要,并且工艺简单,良品率高。
可选地,该显示面板可以为LCD面板或者OLED面板。当显示面板为LCD面板时,基底层包括LCD的背光模组。当显示面板为OLED面 板时,基底层包括衬底基材。需要指出,此方案当然适用于面板为AMOLED显示面板的情况,此时,该基底层同样包括衬底基材。
压电感应层可以包括高分子压电材料。例如,聚偏二氟乙烯(PVDF)可被用于压电层。由于高分子压电薄膜的透明性好,其不影响现有面板的正常显示。并且,高分子压电材料的加工特性良好。
图2(b)为根据本公开文本的一个实施例的显示装置的制造方法的流程图。如图2(b)所示,该方法包括:
步骤201:提供基底层。
步骤202:设置显示面板。
步骤203:形成压电感应层。其中,形成压电感应层的步骤203可以进一步包括:形成聚偏二氟乙烯膜的步骤2031、进行拉伸处理的步骤2032以及设置透明导电氧化物层的步骤2033。
步骤204:设置显示面板盖。
可选地,在一个实施例中,形成该压电感应层的方法包括:
在约210℃~250℃的温度下,形成聚偏二氟乙烯膜。在约60~85℃的温度和约40~60MV/m的极化电场下,对聚偏二氟乙烯膜进行拉伸处理,以使得聚偏二氟乙烯膜的长度为处理之前的长度的约3.5~5.5倍,且聚偏二氟乙烯膜的厚度范围约为40μm~300μm。在小于等于约3.5×10-3Ps的真空度的条件下,在聚偏氟乙烯膜的上下表面分别设置透明导电氧化物层,其中,透明导电氧化物层的厚度范围约为40nm~200nm。上述设置既能获得好的透明性,也能获得好的压电感应性能。
该透明导电氧化物可以为ITO。还可以从聚偏氟乙烯膜的两个表面分别引出两个电极。
需要指出,这里的参数和数值是众多实施例中的部分优选实施例。本公开文本也包括其它任何合适的处理条件和处理参数,以及其他的优选实施例。
在聚偏二氟乙烯膜的至少一个表面上设置压敏粘合剂(例如,压敏胶)。然后经由压敏粘合剂,将所述聚偏二氟乙烯膜与所述显示面板结合。 对于要形成图2所示的结构,则可以将聚偏氟乙烯通过贴合工艺贴服在显示面板的上表面,且使聚偏二氟乙烯膜的电极接入信号接收装置。然后,在显示面板的设置有聚偏二氟乙烯膜的一侧,将显示面板与显示面板盖结合,以使得聚偏二氟乙烯膜位于显示面板和显示面板盖之间。
图3(a)为根据本公开文本的一个实施例的显示装置的结构的示意图。不同于图2(a)的结构,在图3(a)中,压电感应层位于显示面板和基底层之间。如图3(a)所示,在基底层3上设置有压电感应层4,在压电感应层4上设置有显示面板2,在显示面板2上设置有显示面板盖1。
可选地,该显示面板可以为液晶(LCD)面板或者有机发光二极管(OLED)面板。当显示面板为LCD面板时,基底层包括LCD的背光模组。当显示面板为OLED面板时,基底层包括衬底基材。需要指出,此方案当然适用于面板为有源矩阵有机发光二极管(AMOLED)显示面板的情况,此时,该基底层同样包括衬底基材。
压电感应层可以包括高分子压电材料。例如,聚偏二氟乙烯(PVDF)可被用于压电层。由于高分子压电薄膜的透明性好,其不影响现有面板的正常显示。并且,高分子压电材料具有良好的加工特性。
图3(b)为根据本公开文本的一个实施例的显示装置的制造方法的流程图。如图3(b)所示,该方法包括:
步骤301:提供基底层。
步骤302:形成压电感应层。其中,形成压电感应层的步骤302可以进一步包括:形成聚偏二氟乙烯膜的步骤3021、进行拉伸处理的步骤3022以及设置透明导电氧化物层的步骤3023。
步骤303:设置显示面板。
步骤304:设置显示面板盖。
通过在显示面板盖和基底层之间设置压电感应层,使得显示面板集成压力感应功能,能够适合移动产品薄型化和轻薄化的需要,并且工艺简单,良品率高。
可选地,在一个实施例中,形成该压电感应层的方法包括:
在约210℃~250℃的温度下,形成聚偏二氟乙烯膜。在约60~85℃的温度和约40~60MV/m的极化电场下,对聚偏二氟乙烯膜进行拉伸处理,以使得聚偏二氟乙烯膜的长度为处理之前的长度的约3.5~5.5倍,且聚偏二氟乙烯膜的厚度范围约为40μm~300μm。在小于等于约3.5×10-3Ps的真空度的条件下,在聚偏二氟乙烯膜的上下表面分别设置透明导电氧化物层,其中,透明导电氧化物层的厚度范围为约40nm~200nm。上述设置既能获得好的透明性,也能获得好的压电感应性能。
该透明导电氧化物可以为ITO。还可以从聚偏二氟乙烯膜的两个表面分别引出两个电极。
需要指出,这里的参数和数值是众多实施例中的部分优选实施例。本公开文本也包括其它任何合适的处理条件和处理参数,以及其他的优选实施例。
在聚偏二氟乙烯膜的至少一个表面上设置压敏粘合剂(例如,压敏胶)。然后经由压敏粘合剂,将所述聚偏二氟乙烯膜与所述基底层结合。为了形成图3所示的结构,可以将聚偏氟乙烯通过贴合工艺贴服在显示面板的下表面,使聚偏二氟乙烯膜的电极接入信号接受装置。然后,在显示面板的设置有聚偏二氟乙烯膜的一侧,将显示面板与基底层结合,以使得聚偏二氟乙烯膜位于显示面板和基底层之间。
显示装置可以为显示面板、显示器、电视机、平板电脑、手机、导航仪等具有显示功能的设备,本公开对此不做限定。
本公开文本的一个实施例提供了一种显示面板,在该显示面板的显示侧或与显示侧相对的一侧上设置有压电感应层。本公开文本的又一个实施例提供了一种背光模组,在该背光模组的出光侧上设置有压电感应层。根据本公开文本的实施例的背光模组能够集成压力感应功能,适合移动产品薄型化和轻薄化的需要,并且工艺简单,良品率高。
通过本公开文本的技术方案,能够得到具有压力感应功能的显示面板。通过在所述显示面板盖和所述基底层之间设置压电感应层,使得显示面板集成压力感应功能,能够适合移动产品薄型化和轻薄化的需要,并且 工艺简单,良品率高。
已经描述了某特定实施例,这些实施例仅通过举例的方式展现,而且不旨在限制本公开文本的范围。事实上,本文所描述的新颖实施例可以以各种其它形式来实施;此外,可在不脱离本公开文本的精神下,做出以本文所描述的实施例的形式的各种省略、替代和改变。所附权利要求以及它们的等价物旨在覆盖落在本公开文本范围和精神内的此类形式或者修改。

Claims (17)

  1. 一种显示装置,包括:基底层,位于所述基底层上的显示面板,位于所述显示面板上的显示面板盖,其中,所述显示装置还包括设置在所述显示面板盖和所述基底层之间的压电感应层。
  2. 根据权利要求1所述的显示装置,其中,所述压电感应层包括高分子压电材料。
  3. 根据权利要求2所述的显示装置,其中,所述高分子压电材料包括聚偏二氟乙烯。
  4. 根据权利要求1所述的显示装置,其中,所述压电感应层位于所述显示面板盖和所述显示面板之间。
  5. 根据权利要求1所述的显示装置,其中,所述压电感应层位于所述显示面板和所述基底层之间。
  6. 根据权利要求1-5中任一项所述的显示装置,其中,所述显示面板为液晶显示面板,所述基底层包括背光模组。
  7. 根据权利要求1-5中任一项所述的显示装置,其中,所述显示面板为有机发光二极管显示面板,所述基底层包括衬底基材。
  8. 根据权利要求7所述的显示装置,其中,所述有机发光二极管显示面板为有源矩阵有机发光二极管显示面板。
  9. 一种显示面板,其中,在所述显示面板的显示侧或与所述显示侧相对的一侧上设置有压电感应层。
  10. 一种背光模组,其中,在所述背光模组的出光侧上设置有压电感应层。
  11. 一种显示装置的制造方法,包括:提供基底层,在所述基底层上设置显示面板,在所述显示面板上设置显示面板盖,其中,所述方法还包括在所述显示面板盖和所述基底层之间设置压电感应层。
  12. 根据权利要求11所述的显示装置的制造方法,其中,所述压电感应层位于所述显示面板盖和所述显示面板之间。
  13. 根据权利要求11所述的显示装置的制造方法,其中,所述压电感 应层位于所述显示面板和所述基底层之间。
  14. 根据权利要求12或13所述的显示装置的制造方法,其中,设置所述压电感应层包括:
    形成聚偏二氟乙烯膜;
    对所述聚偏二氟乙烯膜进行拉伸处理,以使得所述聚偏二氟乙烯膜具有期望的长度和期望的厚度;
    在所述聚偏氟乙烯膜的上下表面分别设置透明导电氧化物层。
  15. 根据权利要求14所述的显示装置的制造方法,其中,所述聚偏二氟乙烯膜的所述期望的长度为处理之前的长度的约3.5~5.5倍,所述聚偏二氟乙烯膜的所述期望的厚度的范围为约40μm~300μm。
  16. 根据权利要求14所述的显示装置的制造方法,其中,形成所述聚偏二氟乙烯膜是在约210℃~250℃的温度下进行的;
    所述拉伸处理是在约60~85℃的温度和约40~60MV/m的极化电场下进行的。
  17. 根据权利要求14所述的显示装置的制造方法,其中,所述透明导电氧化物层包括ITO,所述方法进一步包括:
    在所述聚偏二氟乙烯膜的至少一个表面上设置压敏粘合剂;
    经由压敏粘合剂,将所述聚偏二氟乙烯膜与所述显示面板或所述基底层结合。
PCT/CN2017/073902 2016-05-19 2017-02-17 显示装置及其制造方法 WO2017197940A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/563,195 US20180188895A1 (en) 2016-05-19 2017-02-17 Display device and method for fabricating a display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610334359.1 2016-05-19
CN201610334359.1A CN106020543A (zh) 2016-05-19 2016-05-19 显示装置及其制造方法

Publications (1)

Publication Number Publication Date
WO2017197940A1 true WO2017197940A1 (zh) 2017-11-23

Family

ID=57095011

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/073902 WO2017197940A1 (zh) 2016-05-19 2017-02-17 显示装置及其制造方法

Country Status (3)

Country Link
US (1) US20180188895A1 (zh)
CN (1) CN106020543A (zh)
WO (1) WO2017197940A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106020543A (zh) * 2016-05-19 2016-10-12 京东方科技集团股份有限公司 显示装置及其制造方法
CN106647047B (zh) * 2017-03-17 2019-10-11 京东方科技集团股份有限公司 液晶面板、制造液晶面板的方法和液晶面板的驱动方法
TWI743539B (zh) * 2019-08-22 2021-10-21 友達光電股份有限公司 背光模組及其適用的顯示裝置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101615091A (zh) * 2009-07-28 2009-12-30 上海广电光电子有限公司 触摸显示屏
CN102339166A (zh) * 2011-10-12 2012-02-01 清华大学 可折叠、可柔性变形的压电触摸屏
CN103534669A (zh) * 2011-05-23 2014-01-22 索尼爱立信移动通讯有限公司 手指在屏上显示器检测
CN104205029A (zh) * 2012-02-02 2014-12-10 高通股份有限公司 具有显示监视器的超声波触摸传感器
CN106020543A (zh) * 2016-05-19 2016-10-12 京东方科技集团股份有限公司 显示装置及其制造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8130202B2 (en) * 2007-05-01 2012-03-06 International Business Machines Corporation Infrared touch screen gated by touch force
TWI366786B (en) * 2008-03-05 2012-06-21 Au Optronics Corp Touch panel and display using the same
CN104409473B (zh) * 2014-11-25 2018-10-16 昆山国显光电有限公司 压电触控式有机发光显示面板及制造方法、有机发光显示器
CN105373228A (zh) * 2015-11-05 2016-03-02 京东方科技集团股份有限公司 压力反馈装置、触控显示装置及其工作方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101615091A (zh) * 2009-07-28 2009-12-30 上海广电光电子有限公司 触摸显示屏
CN103534669A (zh) * 2011-05-23 2014-01-22 索尼爱立信移动通讯有限公司 手指在屏上显示器检测
CN102339166A (zh) * 2011-10-12 2012-02-01 清华大学 可折叠、可柔性变形的压电触摸屏
CN104205029A (zh) * 2012-02-02 2014-12-10 高通股份有限公司 具有显示监视器的超声波触摸传感器
CN106020543A (zh) * 2016-05-19 2016-10-12 京东方科技集团股份有限公司 显示装置及其制造方法

Also Published As

Publication number Publication date
CN106020543A (zh) 2016-10-12
US20180188895A1 (en) 2018-07-05

Similar Documents

Publication Publication Date Title
TWI840447B (zh) 顯示裝置及其製造方法
TWI614695B (zh) 具指紋辨識之高屏佔比顯示裝置
US9164309B2 (en) Display with broadband antireflection film
US9791960B2 (en) OLED touch control display device and manufacture method thereof
WO2018054118A1 (zh) 柔性显示面板及其制造方法以及柔性显示装置
WO2011125388A1 (ja) 透明圧電シート、それをそれぞれ含有するフレーム付透明圧電シート、タッチパネルおよび電子機器
TWI400509B (zh) 可撓性顯示模組及其製作方法
WO2016101558A1 (zh) 显示基板及其制作方法、显示装置
WO2016161878A1 (zh) 柔性基板及其制造方法、柔性显示面板、柔性显示装置
WO2017197940A1 (zh) 显示装置及其制造方法
WO2020224333A1 (zh) 柔性显示面板、柔性显示装置及其形变检测方法
WO2016197686A1 (zh) 触摸屏、其制作方法及显示装置
WO2016090714A1 (zh) 一种触摸屏及其制造方法
US10088718B2 (en) Touch liquid crystal display and method of controlling the same
CN106354334B (zh) 触摸显示装置
WO2015039481A1 (zh) 电致发光装置及其制备方法
CN103048823B (zh) 显示面板的制造方法及叠层体
US20240080629A1 (en) Apparatus
CN108885364B (zh) 与触摸传感器集成的柔性彩色滤光片、柔性液晶显示器及其制造方法
JP2014115739A5 (zh)
TWI700621B (zh) 觸控面板
WO2017210984A1 (zh) 一种压力触控式液晶显示装置及其制造方法
CN107870486B (zh) 柔性功能性膜及其制造方法
CN102236456B (zh) 触控面板
WO2020034287A1 (zh) 显示装置

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17798507

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 150319)

122 Ep: pct application non-entry in european phase

Ref document number: 17798507

Country of ref document: EP

Kind code of ref document: A1