WO2016188013A1 - 触控显示面板及其制备方法和显示装置 - Google Patents

触控显示面板及其制备方法和显示装置 Download PDF

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Publication number
WO2016188013A1
WO2016188013A1 PCT/CN2015/091744 CN2015091744W WO2016188013A1 WO 2016188013 A1 WO2016188013 A1 WO 2016188013A1 CN 2015091744 W CN2015091744 W CN 2015091744W WO 2016188013 A1 WO2016188013 A1 WO 2016188013A1
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WIPO (PCT)
Prior art keywords
display panel
touch display
film layer
substrate
sound absorbing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
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PCT/CN2015/091744
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English (en)
French (fr)
Inventor
王臣
吕凤珍
郭霄
张新霞
吕奎
向康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Application filed by BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US15/113,485 priority Critical patent/US9885902B2/en
Publication of WO2016188013A1 publication Critical patent/WO2016188013A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • G06—COMPUTING OR CALCULATING; 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
    • G02F1/1335—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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • 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
    • G02F1/133302—Rigid substrates, e.g. inorganic substrates
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133311—Environmental protection, e.g. against dust or humidity
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch display panel, a method for fabricating the same, and a display device.
  • the liquid crystal panel with touch function is more and more widely used, and the basic structure is the cover glass of the outermost layer and the liquid crystal panel 4 of the lowermost layer, and the transparent optical adhesive 5 (OCA) is used for both.
  • OCA transparent optical adhesive 5
  • the touch mura When the touch operation is performed on the liquid crystal panel, the touch mura is easily generated.
  • the reason for the touch shadow is roughly divided into two types: the first one is to cause the liquid crystal panel 4 to have a box thickness direction when the touch is pressed. Due to the deformation of the upper layer, since the localized position of the cell thickness is deformed (as shown in FIG. 2), the liquid crystal molecules 41 are arranged to be different from the surrounding liquid crystal molecules 41, causing a change in the optical path difference, thereby forming a difference in transmittance. , causing the shadow to appear.
  • the second type is that when the touch force becomes large, such as when the touch is tapped, vibration sound waves are generated, and the sound waves are transmitted to the liquid crystal molecules 41, so that the liquid crystal molecules 41 are also arranged in the same manner, causing display shadows (as shown in FIG. 3). That is, dynamic touch shadows.
  • the mechanism by which such liquid crystal molecules are coupled with sound waves is most apparent in a vertical alignment type (ie, VA type) liquid crystal display, and is secondarily performed in a planar rotary type liquid crystal display such as a horizontal electric field (IPS) or a fringe electric field (FFS).
  • the protective cover glass can effectively resist the first touch shadow caused by the deformation of the liquid crystal cell due to its large rigidity (such as Corning Gorilla Glass), but the shadow caused by excessive touch force is not significantly affected.
  • the thickness of the transparent optical adhesive is increased, a part of the sound waves can be shielded to improve the shadow generated when the touch is touched, but at the same time, problems such as yellow spots and bubbles are caused.
  • the present invention is directed to the above technical problem existing in the prior art, and provides a touch display panel, a preparation method thereof, and a display device.
  • the touch display panel can eliminate the vibration sound waves generated during the tapping touch process, and avoid the vibration sound waves to cause the liquid crystal molecules to be arranged differently, thereby avoiding the display shadow caused by the vibration sound waves, thereby greatly improving the knocking.
  • the display shadow generated during the touch process can eliminate the vibration sound waves generated during the tapping touch process, and avoid the vibration sound waves to cause the liquid crystal molecules to be arranged differently, thereby avoiding the display shadow caused by the vibration sound waves, thereby greatly improving the knocking.
  • the invention provides a touch display panel, comprising a liquid crystal screen and a protective cover covering the light emitting side of the liquid crystal screen
  • the touch display panel further includes a sound absorbing film layer, and the sound absorbing film layer is located on the light emitting side of the liquid crystal screen, and is used for eliminating sound waves generated when the touch display panel is touched.
  • the sound absorbing film layer comprises a film layer substrate and a plurality of holes formed on the film layer substrate.
  • the plurality of holes are the same size and uniformly distributed.
  • the hole comprises a through hole penetrating the thickness of the film substrate or a blind hole formed on the film substrate.
  • the aperture has an opening size in the range of 5-15 ⁇ m.
  • the distribution density of the holes is the same as the distribution density of pixels on the touch display panel.
  • the shape of the hole includes any one of a truncated cone shape, a truncated pyramid shape, a cylindrical shape, and a prismatic shape, or any combination thereof.
  • the thickness of the sound absorbing film layer ranges from 20 to 40 ⁇ m.
  • the sound absorbing film layer is made of a transparent photosensitive resin material.
  • the liquid crystal panel comprises a color filter substrate and an array substrate disposed on the color filter substrate, wherein the color filter substrate is located on a light exiting side of the liquid crystal screen, and the protective cover plate is located opposite to the array of the color filter substrate a side of the substrate, the sound absorbing film layer is located between the color film substrate and the protective cover;
  • the sound absorbing film layer is located on a side of the color filter substrate facing away from the protective cover;
  • the color filter substrate includes a substrate disposed on a side of the substrate opposite to the array substrate, and a polarizing film layer between the substrate and the polarizer ;
  • the sound absorbing film layer is located on a side of the protective cover that faces away from the color filter substrate.
  • the touch display panel further includes a touch layer disposed on the array substrate, on the color filter substrate or on the protective cover.
  • the invention also provides a display device comprising the above touch display panel.
  • the present invention also provides a method for fabricating the above touch display panel, comprising the steps of fabricating a sound absorbing film layer on the light exit side of the liquid crystal panel.
  • the step of fabricating a sound absorbing film layer on the light exiting side of the liquid crystal panel is to form the sound absorbing film layer on the color filter substrate of the liquid crystal screen or on the protective cover plate by a single exposure process;
  • the step of forming a sound absorbing film layer on the light emitting side of the liquid crystal panel forming the sound absorbing film layer on the glass substrate by a single exposure process, and then peeling the sound absorbing film layer from the glass substrate Finally, the sound absorbing film layer is finally adhered to the color film substrate or the protective cover by using a transparent optical adhesive.
  • the touch display panel provided by the present invention can be eliminated by providing a sound absorbing film layer
  • the vibration sound waves are prevented from causing the liquid crystal molecules to be arranged differently, thereby avoiding the display shadow caused by the vibration sound waves, thereby greatly improving the display shadow generated during the tapping touch process.
  • the display device provided by the present invention greatly improves the display shadow generated during the tapping process by using the above touch display panel, thereby improving the display effect thereof.
  • FIG. 1 is a cross-sectional view showing the structure of a liquid crystal module having a touch function in the prior art
  • FIG. 2 is a schematic view showing the arrangement of liquid crystal molecules in the liquid crystal panel when the deformation of the thickness direction of the liquid crystal panel is caused by pressing;
  • FIG. 3 is a schematic view showing the arrangement of liquid crystal molecules inside the liquid crystal panel when the tapping force is large;
  • FIG. 4 is a cross-sectional view showing the structure of a touch display panel according to Embodiment 1 of the present invention.
  • Figure 5 is a schematic structural view of the sound absorbing film layer of Figure 4.
  • FIG. 6 is a cross-sectional view showing the structure of a touch display panel according to Embodiment 2 of the present invention.
  • FIG. 7 is a cross-sectional view showing the structure of a touch display panel according to Embodiment 3 of the present invention.
  • FIG. 8 is a cross-sectional view showing the structure of a touch display panel according to Embodiment 4 of the present invention.
  • LCD screen 11. color film substrate; 110. substrate; 111. polarizer; 12. array substrate; 2. protective cover; 3. sound-damping film; 31. film substrate; 32. Liquid crystal panel; 41. liquid crystal molecules; 5. transparent optical glue.
  • the embodiment provides a touch display panel.
  • the touch display panel includes a liquid crystal panel 1 and a protective cover 2 attached to the light exiting side of the liquid crystal panel 1.
  • the touch display panel further includes a sound absorbing film layer 3, and the sound absorbing film layer 3 is located on the light emitting side of the liquid crystal panel 1 for eliminating sound waves generated when the touch display panel is touched.
  • the liquid crystal panel 1 includes a color filter substrate 11 and an array substrate 12 disposed on the cartridge, and the color filter substrate 11 is located on the light-emitting side of the liquid crystal panel 1.
  • the protective cover 2 is located on the side of the color filter substrate 11 facing away from the array substrate 12, and the sound-damping film layer 3 is located between the color filter substrate 11 and the protective cover 2.
  • the arrangement of the sound absorbing film layer 3 can eliminate the vibration sound waves generated during the tapping process, and avoid the vibration sound waves displacing the liquid crystal molecules disposed between the color film substrate 11 and the array substrate 12, thereby avoiding vibration sound waves.
  • the display of shadows which in turn greatly improves the display shadows produced during the tapping process.
  • the touch layer of the touch display panel may be disposed on the array substrate 12, or may be disposed on the color film substrate 11 or the protective cover 2, that is, the specific setting of the touch layer.
  • the touch display panel may be an In cell touch panel (ie, the touch layer is embedded in the liquid crystal pixel) or an On cell touch panel (ie, the touch layer is embedded in the color filter substrate and Between the polarizers) or the OGS touch panel (that is, the touch layer is integrated with the protective cover glass cover).
  • the sound absorbing film layer 3 includes a film substrate 31 and a plurality of holes 32 formed in the film substrate 31.
  • the hole 32 is disposed to eliminate the vibration sound wave generated during the touch control of the touch display panel, thereby preventing the vibration sound wave from causing the liquid crystal molecules to be arranged differently, thereby preventing the vibration sound wave from causing the touch display panel to display a shadow when displayed. .
  • the plurality of holes 32 have the same size and uniform distribution. Since the vibration sound waves generated at the time of tapping are uniformly diffused and propagated, the arrangement can enhance the elimination effect of the vibration sound waves of the holes 32, so that the vibration sound waves can be uniformly and completely eliminated. In addition, the evenly distributed holes 32 can also make the light transmission of the sound absorbing film layer 3 uniform, so that the sound absorbing film layer 3 does not affect the uniform light transmission of the touch display panel.
  • the hole 32 is a through hole penetrating the thickness of the film substrate 31. It should be noted that the hole 32 may also be a blind hole formed on the film substrate 31. Both the through hole and the blind hole can eliminate the vibration sound wave.
  • the opening size of the hole 32 ranges from 5 to 15 ⁇ m.
  • the size of the opening of the aperture 32 is primarily determined by the wavelength of the vibrating acoustic wave, and the aperture 32 of this size range is capable of well eliminating the vibrating acoustic waves generated by the tapping.
  • the distribution density of the holes 32 is the same as the distribution density of the pixels on the touch display panel.
  • the hole 32 of the distributed density is more advantageous for eliminating the vibration sound wave generated when the touch is touched, thereby better avoiding the display shadow caused by the vibration sound wave.
  • the shape of the hole 32 is a truncated cone shape.
  • the shape of the hole 32 may also be other shapes such as a truncated cone shape, a cylindrical shape or a prism shape, and any combination of the above shapes.
  • the thickness of the sound absorbing film layer 3 ranges from 20 to 40 ⁇ m.
  • the thickness of the sound absorbing film layer 3 can well eliminate the vibration sound waves generated by the tapping.
  • the sound absorbing film layer 3 is made of a transparent photosensitive resin material. Sound absorbing film layer 3 of the material While eliminating the vibration sound wave, it does not affect the normal light transmission of the touch display panel. This material allows the sound absorbing film layer 3 to be formed by coating, exposure and development at the time of preparation, and the preparation process is very simple.
  • the embodiment further provides a method for preparing a touch display panel, comprising: fabricating a sound absorbing film layer on a light emitting side of the liquid crystal screen.
  • a sound absorbing film layer is formed on the color filter substrate of the liquid crystal panel by a single exposure process.
  • the sound absorbing film layer in this embodiment may also be formed on the protective cover by a single exposure process.
  • the sound absorbing film layer may be formed on the glass substrate by a single exposure process, and then the sound absorbing film layer is peeled off from the glass substrate, and finally, the sound absorbing film layer is pasted onto the color film substrate or the protective cover by using a transparent optical adhesive. On the board.
  • the present embodiment provides a touch display panel. Unlike the first embodiment, as shown in FIG. 6, the sound absorbing film layer 3 is located on a side of the color filter substrate 11 facing away from the protective cover 2.
  • the sound absorbing film layer 3 is disposed on the color filter substrate 11. In this way, it is ensured that the vibration sound waves generated by the tapping are not transmitted to the liquid crystal molecules, thereby preventing the vibration sound waves from causing the display shadow of the touch display panel.
  • the present embodiment provides a touch display panel.
  • the color filter substrate 11 includes a substrate 110 and a polarizer 111, and the polarizer 111 is disposed on the back-to-back array of the substrate 110.
  • the sound absorbing film layer 3 is located between the substrate 110 and the polarizer 111.
  • the present embodiment provides a touch display panel. Unlike the embodiment 1-3, as shown in FIG. 8, the sound absorbing film layer 3 is located on a side of the protective cover 2 facing away from the color filter substrate 11.
  • the touch display panel provided in Embodiment 1-4 can eliminate the vibration sound wave generated during the tapping process by setting the sound absorbing film layer, and avoid the vibration sound wave to cause the liquid crystal molecules to be arranged differently, thereby avoiding the vibration sound wave. Display shadows, which greatly improve the display shadows produced during tapping.
  • the embodiment provides a display device, including the touch display panel in any one of embodiments 1-4.
  • the display device greatly improves the display shadow generated during the tapping process, and improves the display effect thereof.

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Abstract

一种触控显示面板及其制备方法和显示装置。该触控显示面板包括液晶屏(1)和盖合在液晶屏(1)出光侧的保护盖板(2)。所述触控显示面板还包括消声膜层(3)，该消声膜层(3)位于液晶屏(1)的出光侧，用于消除触控显示面板触控时产生的声波。该触控显示面板通过设置消声膜层(3)，能够消除敲击触控过程中产生的振动声波，避免振动声波使液晶分子发生排布差异，从而避免振动声波引起的显示阴影，进而极大地改善敲击触控过程中产生的显示阴影。

Description

触控显示面板及其制备方法和显示装置 技术领域
本发明涉及显示技术领域，具体地，涉及一种触控显示面板及其制备方法和显示装置。
背景技术
目前具有触控功能的液晶面板应用越来越广泛，其基本结构均是最外层为保护盖板玻璃2(cover glass)，最下层为液晶面板4，两者采用透明光学胶5(OCA)进行全贴合，如图1所示。
当对液晶面板进行触控操作时容易产生触控阴影(touch mura)，这种触控阴影引起的原因大致分为两种：第一种是因触控按压时使液晶面板4产生盒厚方向上的形变而引起，由于盒厚局域位置发生形变(如图2所示)，液晶分子41排布发生与周围液晶分子41的差异，造成光程差的变化，因而形成透过率的差异，造成显示阴影。第二种是当触控力度变大如敲击触控时会产生振动声波，声波传导至液晶分子41，致使液晶分子41同样发生排布差异，造成显示阴影(如图3所示)，也即动态触控阴影。这种液晶分子与声波发生耦合作用的机制在垂直取向型(即VA型)液晶显示器中表现最为明显，在水平电场(IPS)或边缘电场(FFS)等平面旋转型液晶显示器中表现次之。
目前保护盖板玻璃由于其较大的刚度(比如康宁大猩猩玻璃)可以有效抵制液晶盒厚发生形变而造成的第一种触控阴影，但对于触控力度过大造成的阴影无显著抵制作用。当然，当提高透明光学胶的厚度时可以屏蔽掉一部分声波改善敲击触控时产生的阴影，但同时会带来黄斑、气泡等问题。
发明内容
本发明针对现有技术中存在的上述技术问题，提供一种触控显示面板及其制备方法和显示装置。该触控显示面板通过设置消声膜层，能够消除敲击触控过程中产生的振动声波，避免振动声波使液晶分子发生排布差异，从而避免振动声波引起的显示阴影，进而极大地改善敲击触控过程中产生的显示阴影。
本发明提供一种触控显示面板，包括液晶屏和盖合在所述液晶屏出光侧的保护盖 板，所述触控显示面板还包括消声膜层，所述消声膜层位于所述液晶屏的出光侧，用于消除所述触控显示面板触控时产生的声波。
优选地，所述消声膜层包括膜层基材和开设在所述膜层基材上的多个孔。
优选地，多个所述孔大小形状相同且均匀分布。
优选地，所述孔包括贯穿所述膜层基材厚度的通孔或开设在所述膜层基材上的盲孔。
优选地，所述孔的开口尺寸范围为5-15μm。
优选地，所述孔的分布密度与所述触控显示面板上像素的分布密度相同。
优选地，所述孔的形状包括圆锥台形、棱锥台形、圆柱形和棱柱形中的任一种或它们的任意组合。
优选地，所述消声膜层的厚度范围为20-40μm。
优选地，所述消声膜层采用透明感光树脂材料。
优选地，所述液晶屏包括对盒设置的彩膜基板和阵列基板，所述彩膜基板位于所述液晶屏的出光侧，所述保护盖板位于所述彩膜基板的背对所述阵列基板的一侧，所述消声膜层位于所述彩膜基板与所述保护盖板之间；
或者，所述消声膜层位于所述彩膜基板的背对所述保护盖板的一侧；
或者，所述彩膜基板包括基板和偏光片，所述偏光片设置在所述基板的背对所述阵列基板的一侧，所述消声膜层位于所述基板和所述偏光片之间；
或者，所述消声膜层位于所述保护盖板的背对所述彩膜基板的一侧。
优选地，所述触控显示面板还包括触控层，所述触控层设置在阵列基板上、彩膜基板上或保护盖板上。
本发明还提供一种显示装置，包括上述触控显示面板。
本发明还提供一种上述触控显示面板的制备方法，包括在液晶屏的出光侧制作消声膜层的步骤。
优选地，所述在液晶屏的出光侧制作消声膜层的步骤：为通过一次曝光工艺在所述液晶屏的彩膜基板上或保护盖板上形成所述消声膜层；
或者，所述在液晶屏的出光侧制作消声膜层的步骤：为通过一次曝光工艺在玻璃基板上形成所述消声膜层，然后将所述消声膜层从所述玻璃基板上剥离下来，最后采用透明光学胶将所述消声膜层粘贴到所述彩膜基板上或所述保护盖板上。
本发明的有益效果：本发明所提供的触控显示面板，通过设置消声膜层，能够消 除敲击触控过程中产生的振动声波，避免振动声波使液晶分子发生排布差异，从而避免振动声波引起的显示阴影，进而极大地改善敲击触控过程中产生的显示阴影。
本发明所提供的显示装置，通过采用上述触控显示面板，极大地改善了其在敲击触控过程中产生的显示阴影，从而提高了其显示效果。
附图说明
图1为现有技术中具有触控功能的液晶模组的结构剖视图；
图2为当液晶面板在按压作用下产生盒厚方向的形变时，其内部液晶分子的排布示意图；
图3为当液晶面板在较大的敲击作用力下时，其内部液晶分子的排布示意图；
图4为本发明实施例1中触控显示面板的结构剖视图；
图5为图4中消声膜层的结构示意图；
图6为本发明实施例2中触控显示面板的结构剖视图；
图7为本发明实施例3中触控显示面板的结构剖视图；
图8为本发明实施例4中触控显示面板的结构剖视图。
其中的附图标记说明：
1.液晶屏；11.彩膜基板；110.基板；111.偏光片；12.阵列基板；2.保护盖板；3.消声膜层；31.膜层基材；32.孔；4.液晶面板；41.液晶分子；5.透明光学胶。
具体实施方式
为使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明所提供的一种触控显示面板及其制备方法和显示装置作进一步详细描述。
实施例1：
本实施例提供一种触控显示面板，如图4所示，包括液晶屏1和盖合在液晶屏1出光侧的保护盖板2。所述触控显示面板还包括消声膜层3，该消声膜层3位于液晶屏1的出光侧，用于消除触控显示面板触控时产生的声波。
本实施例中，液晶屏1包括对盒设置的彩膜基板11和阵列基板12，彩膜基板 11位于液晶屏1的出光侧，保护盖板2位于彩膜基板11的背对阵列基板12的一侧，消声膜层3位于彩膜基板11与保护盖板2之间。
消声膜层3的设置，能够消除敲击触控过程中产生的振动声波，避免振动声波使设置在彩膜基板11和阵列基板12之间的液晶分子发生排布差异，从而避免振动声波引起的显示阴影，进而极大地改善敲击触控过程中产生的显示阴影。
需要说明的是，本实施例中，触控显示面板的触控层可以设置在阵列基板12上，也可以设置在彩膜基板11上或者保护盖板2上，即对触控层的具体设置位置不做限制，该触控显示面板可以是In cell触控面板(即将触控层嵌入到液晶像素中)，也可以是On cell触控面板(即将触控层嵌入到彩色滤光片基板与偏光片之间)或者OGS触控面板(即将触控层与保护保护玻璃盖板集成在一起)。
本实施例中，如图5所示，消声膜层3包括膜层基材31和开设在膜层基材31上的多个孔32。孔32的设置能够消除敲击触控该触控显示面板过程中产生的振动声波，从而避免振动声波使液晶分子发生排布差异，进而避免振动声波引起该触控显示面板在显示时出现显示阴影。
本实施例中，多个孔32大小形状相同且均匀分布。由于敲击时产生的振动声波是均匀扩散传播的，如此设置，能够增强孔32对振动声波的消除作用，使振动声波能够被均匀并彻底地消除。另外，均匀分布的孔32还能使消声膜层3的透光均匀，从而使消声膜层3不会影响触控显示面板的均匀透光。
本实施例中，孔32为贯穿膜层基材31厚度的通孔。需要说明的是，孔32也可以是开设在膜层基材31上的盲孔。无论是通孔还是盲孔都能起到对振动声波的消除作用。
其中，孔32的开口尺寸范围为5-15μm。孔32的开口尺寸主要由振动声波的波长决定，该尺寸范围的孔32能够对敲击产生的振动声波进行很好的消除。
本实施例中，孔32的分布密度与触控显示面板上像素的分布密度相同。该分布密度的孔32更有利于对敲击触控时产生的振动声波进行消除，从而更好地避免振动声波引起的显示阴影。
本实施例中，孔32的形状为圆锥台形。当然，孔32的形状也可以为棱锥台形、圆柱形或棱柱形等其他的形状以及上述形状的任意组合。
本实施例中，消声膜层3的厚度范围为20-40μm。该厚度的消声膜层3能够对敲击产生的振动声波起到很好的消除作用。
本实施例中，消声膜层3采用透明感光树脂材料制成。该种材料的消声膜层3 在消除振动声波的同时，不会影响触控显示面板的正常透光。该种材料使得消声膜层3在制备时，只要通过涂布、曝光和显影就能形成，制备工艺非常简单。
本实施例还提供一种触控显示面板的制备方法，包括在液晶屏的出光侧制作消声膜层。
本实施例中，通过一次曝光工艺在液晶屏的彩膜基板上形成消声膜层。
需要说明的是，本实施例中的消声膜层也可以通过一次曝光工艺形成在保护盖板上。或者，也可以通过一次曝光工艺在玻璃基板上形成消声膜层，然后将消声膜层从玻璃基板上剥离下来，最后采用透明光学胶将消声膜层粘贴到彩膜基板上或保护盖板上。
实施例2：
本实施例提供一种触控显示面板，与实施例1不同的是，如图6所示，消声膜层3位于彩膜基板11的背对保护盖板2的一侧。
本实施例中，消声膜层3设置在彩膜基板11上。如此设置，能确保敲击产生的振动声波不会传递到液晶分子，从而避免振动声波造成触控显示面板的显示阴影。
本实施例中触控显示面板的其他结构以及制备方法与实施例1中相同，此处不再赘述。
实施例3：
本实施例提供一种触控显示面板，与实施例1-2不同的是，如图7所示，彩膜基板11包括基板110和偏光片111，偏光片111设置在基板110的背对阵列基板12的一侧，消声膜层3位于基板110和偏光片111之间。
如此设置，能够确保敲击产生的振动声波不会传递到液晶分子，从而避免振动声波造成触控显示面板的显示阴影。
本实施例中触控显示面板的其他结构以及制备方法与实施例1或2中相同，此处不再赘述。
实施例4：
本实施例提供一种触控显示面板，与实施例1-3不同的是，如图8所示，消声膜层3位于保护盖板2的背对彩膜基板11的一侧。
如此设置，同样能够确保敲击产生的振动声波不会传递到液晶分子，从而避免 振动声波造成触控显示面板的显示阴影。
本实施例中触控显示面板的其他结构以及制备方法与实施例1-3中任意一个相同，此处不再赘述。
实施例1-4的有益效果：
实施例1-4所提供的触控显示面板，通过设置消声膜层，能够消除敲击触控过程中产生的振动声波，避免振动声波使液晶分子发生排布差异，从而避免振动声波引起的显示阴影，进而极大地改善敲击触控过程中产生的显示阴影。
实施例5：
本实施例提供一种显示装置，包括实施例1-4任意一个中的触控显示面板。
通过采用实施例1-4任意一个中的触控显示面板，使该显示装置极大地改善了敲击触控过程中产生的显示阴影，提高了其显示效果。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也落入本发明的保护范围内。

Claims (19)

  1. 一种触控显示面板，包括液晶屏和盖合在所述液晶屏出光侧的保护盖板，其中，
    所述触控显示面板还包括消声膜层，所述消声膜层位于所述液晶屏的出光侧，用于消除所述触控显示面板触控时产生的声波。
  2. 根据权利要求1所述的触控显示面板，其中，所述消声膜层包括膜层基材和开设在所述膜层基材上的多个孔。
  3. 根据权利要求2所述的触控显示面板，其中，多个所述孔大小形状相同且均匀分布。
  4. 根据权利要求2或3所述的触控显示面板，其中，所述孔包括贯穿所述膜层基材厚度的通孔或开设在所述膜层基材上的盲孔。
  5. 根据权利要求2-4中任一项所述的触控显示面板，其中，所述孔的开口尺寸范围为5-15μm。
  6. 根据权利要求2-5中任一项所述的触控显示面板，其中，所述孔的分布密度与所述触控显示面板上像素的分布密度相同。
  7. 根据权利要求2-6中任一项所述的触控显示面板，其中，所述孔的形状包括圆锥台形、棱锥台形、圆柱形和棱柱形中的任一种或它们的任意组合。
  8. 根据权利要求1-7中任一项所述的触控显示面板，其中，所述消声膜层的厚度范围为20-40μm。
  9. 根据权利要求1-8中任一项所述的触控显示面板，其中，所述消声膜层采用透明感光树脂材料制成。
  10. 根据权利要求1-9中任一项所述的触控显示面板，其中，所述液晶屏包括对盒设置的彩膜基板和阵列基板，所述彩膜基板位于所述液晶屏的出光侧，所述保护盖板位于所述彩膜基板的背对所述阵列基板的一侧。
  11. 根据权利要求10所述的触控显示面板，其中，所述消声膜层位于所述彩膜基板与所述保护盖板之间。
  12. 根据权利要求10所述的触控显示面板，其中，所述消声膜层位于所述彩膜基板的背对所述保护盖板的一侧。
  13. 根据权利要求10所述的触控显示面板，其中，所述彩膜基板包括基板和偏光片，所述偏光片设置在所述基板的背对所述阵列基板的一侧，所述消声膜层位于所述基板和所述偏光片之间。
  14. 根据权利要求10所述的触控显示面板，其中，所述消声膜层位于所述保护盖板的背对所述彩膜基板的一侧。
  15. 根据权利要求10-14中任一项所述的触控显示面板，还包括触控层，所述触控层设置在阵列基板上、彩膜基板上或保护盖板上。
  16. 一种显示装置，其中，包括权利要求1-15中任一项所述的触控显示面板。
  17. 一种如权利要求1-15中任一项所述的触控显示面板的制备方法，，包括在液晶屏的出光侧制作消声膜层的步骤。
  18. 根据权利要求17所述的制备方法，其中，所述在液晶屏的出光侧制作消声膜层的步骤：为通过一次曝光工艺在所述液晶屏的彩膜基板上或保护盖板上形成所述消声膜层。
  19. 根据权利要求17所述的制备方法，其中，所述在液晶屏的出光侧制作消声膜层的步骤：为通过一次曝光工艺在玻璃基板上形成所述消声膜层，然后将所述消声膜层从所述玻璃基板上剥离下来，最后采用透明光学胶将所述消声膜层粘贴到所述彩膜基板上或所述保护盖板上。
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