WO2020252889A1 - 屏幕发声显示装置 - Google Patents

屏幕发声显示装置 Download PDF

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Publication number
WO2020252889A1
WO2020252889A1 PCT/CN2019/101823 CN2019101823W WO2020252889A1 WO 2020252889 A1 WO2020252889 A1 WO 2020252889A1 CN 2019101823 W CN2019101823 W CN 2019101823W WO 2020252889 A1 WO2020252889 A1 WO 2020252889A1
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WO
WIPO (PCT)
Prior art keywords
layer
display panel
vibration
display device
screen
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
Application number
PCT/CN2019/101823
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English (en)
French (fr)
Inventor
周永祥
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.)
Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/609,212 priority Critical patent/US10838241B1/en
Publication of WO2020252889A1 publication Critical patent/WO2020252889A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Definitions

  • This application relates to the technical field of display panels, and in particular to a screen sounding display device.
  • the embodiment of the application provides a screen sound display device.
  • the existing vibrating layer is placed under the display panel, which obviously increases the thickness of the entire module and destroys the lightness and thinness of the entire module. The problem.
  • the embodiment of the application provides a screen sound display device, including:
  • the vibration layer is arranged in the display panel and located in the display area of the display panel, and is used to vibrate the display panel to produce sound.
  • the vibration layer includes a plurality of vibration units arranged in an array.
  • the display panel includes a color film layer, and the color film layer includes a plurality of color resistors arranged in an array and a black matrix arranged between each of the color resistors;
  • the vibration units are respectively arranged between the color resistors and located on one side of the black matrix.
  • the projection of the black matrix in a direction perpendicular to the color filter layer covers the projection of the vibrating layer in a direction perpendicular to the color filter layer.
  • the display panel includes a TFT array layer, the TFT array layer includes a gate layer, and each of the vibration units is disposed on the TFT array layer and is connected to the TFT array layer.
  • the gate layer corresponds.
  • the projection of the gate layer perpendicular to the TFT array layer covers the projection of the vibration layer perpendicular to the TFT array layer.
  • the TFT array layer includes a substrate, and a thin film transistor, a pixel electrode layer, a flat layer and a common electrode layer are sequentially arranged on the substrate, and each of the vibration units is Set on the common electrode layer.
  • the display panel includes a TFT array layer and a color film layer disposed oppositely, and the vibration layer is disposed on a side of the color film layer away from the TFT array layer ,
  • the material of the vibration layer is a transparent material.
  • the display panel further includes a liquid crystal layer arranged between the TFT array layer and the color film layer, an upper polarizer arranged above the color film layer, and Protective glass on the upper polarizer, and a touch control layer; the color film layer is provided on the liquid crystal layer, and the vibration layer is provided on the color film layer;
  • the touch control layer is integrated in the protective glass.
  • the touch layer is disposed between the vibration layer and the upper polarizer;
  • the touch control layer is embedded in the liquid crystal layer.
  • the vibrating layer further includes an insulating sublayer, and the excitation sublayer is disposed on the insulating sublayer.
  • a through hole is provided in the middle of the insulating sublayer, and the side of the vibrating layer close to the insulating sublayer is attached to the functional layer in the display panel to bond The through hole is sealed to form a cavity.
  • the material of the piezoelectric layer is lead zirconate titanate, aluminum nitride, polyvinylidene fluoride or polyvinylidene fluoride-trifluoroethylene copolymer.
  • the electrode sublayer material is metal or indium tin oxide.
  • the beneficial effect of the present application is: a screen sounding display device of the present application, which embeds the vibrating layer in the display panel.
  • the screen sounding structure of the present application does not require additional Preserving the position and space of the vibrating layer significantly reduces the thickness of the entire display panel and does not affect the assembly of the whole machine.
  • embedding the vibrating layer into the display panel can also better drive the display panel to produce sound.
  • FIG. 1 is a schematic structural diagram of a screen sound display device provided by an embodiment of the application
  • FIG. 2 is a schematic structural diagram of another screen sounding display device provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of another screen sounding display device provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of the structure of the TFT array layer and the vibration layer in FIG. 3;
  • FIG. 5 is a schematic structural diagram of a vibrating layer in a screen sound display device provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of another structure of a vibrating layer in a screen sound emitting display device provided by an embodiment of the application.
  • connection should be interpreted broadly unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • connection should be interpreted broadly unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • an embodiment of the present application provides a screen sound display device, including:
  • the vibration layer 200 is disposed in the display panel 100 and located in the display area 101 of the display panel 100, and is used to vibrate the display panel 100 to produce sound.
  • the earpiece in order to ensure the full screen of the display panel, the earpiece is designed in a hidden design, and the vibrating layer 200 is integrated or embedded in the display panel 100.
  • the vibrating layer 200 in the present application It can be located anywhere in the display area 101 of the display panel 100. Specifically, it can be located at the original handset design position, that is, at the upper end of the display panel 100 instead of the original handset. For example, for a mobile phone terminal, The vibrating layer 200 is located at an end away from the microphone in the mobile phone.
  • the display panel 100 may be an LCD display panel, or an OLED display panel, etc., among which, in the prior art, the LCD display panel includes OGS, In cell, On cell, etc.; in one embodiment, the touch layer On Take the cell’s LCD display panel as an example.
  • the display panel 100 includes a TFT array layer 130 and a color filter layer 180 disposed oppositely, and the vibrating layer 200 is disposed on the color filter layer 180 away from the TFT array layer 130.
  • the material of the vibration layer 200 is a transparent material.
  • the vibrating layer 200 is located on the upper side of the color filter layer 180, that is, on the side of the color filter layer 180 away from the TFT array layer 130, specifically, located on the The color film layer 180 is on the glass plate.
  • the material of the vibrating layer 200 is a transparent material, which can obviously avoid blocking the light-transmitting part of the color film layer 180 and reduce the influence on the display effect of the display panel.
  • the display panel also includes a liquid crystal layer 140 disposed between the TFT array layer 130 and the color filter layer, an upper polarizer 150 disposed above the color film layer 180, a protective glass 160 disposed on the upper polarizer 150, And a touch layer 170; the color film layer 180 is disposed on the liquid crystal layer 140, the vibration layer 200 is disposed on the color film layer 180, and the touch layer 170 is disposed on the vibration layer 200 and Between the upper polarizer 150; in addition, it also includes a backlight module 110 and a lower polarizer 120.
  • the touch layer 170 is in a different position in this application.
  • the touch layer 170 is integrated in the cover glass 160; or the touch The layer 170 is embedded in the liquid crystal layer 140, etc.; in one embodiment, the position of the vibrating layer 200 remains unchanged, which does not affect the overall vibration effect of the display panel in one embodiment. Therefore, the technical solution of the present application has good adaptability Sex.
  • the vibration layer 200 includes an excitation sublayer 205, and the excitation sublayer 205 includes a plurality of electrode sublayers 201, each of which is provided between two adjacent electrode sublayers 201.
  • the sound technology principle of the vibrating layer 200 is the prior art. By inputting an alternating current to one of the electrode sublayers 201, the piezo-electron layer 202 will vibrate upward or downward, thereby driving the entire display panel to vibrate and emit sound. The screen sounds.
  • the material of the electrode sublayer 201 can be one of Ag, Al, Mo, Au, Cr, Ni, Cu, Pt or an alloy of several metals; it can also be a transparent electrode ITO (Indium Tin Oxide );
  • the material of the vibration layer 200 is a transparent material, specifically, the material of the electrode sublayer 201 is indium tin oxide;
  • the material of the piezoelectric layer 202 can be piezoelectric ceramic lead zirconate titanate PZT, aluminum nitride AlN, polyvinylidene fluoride PVDF, or the copolymer is polyvinylidene fluoride-trifluoroethylene copolymer P (VDF -TrFE), etc.; in one embodiment, the material of the vibration layer 200 is a transparent material, specifically, the material of the piezo-electron layer 202 is polyvinylidene fluoride PVDF with a certain degree of light transmission;
  • the excitation sublayer 205 adopts a structure of a multi-electrode sublayer 201, such as a four-layer electrode sublayer 201 structure; obviously, this type of multilayer structure is relatively
  • the double-layer structure or other structures with greater vibration displacement can better drive the vibration output to drive the entire display panel to vibrate and produce sound.
  • the vibrating layer 200 further includes an insulating sublayer 203, the excitation sublayer 205 is disposed on the insulating sublayer 203, and a through hole 204 is provided in the middle of the insulating sublayer 203
  • the side of the vibrating layer 200 close to the insulating sub-layer 203 is attached to the functional layer in the display panel to seal the through hole 204 to form a cavity.
  • the material of the insulating sub-layer 203 can be transparent or non-transparent material, which belongs to the common technical knowledge well known by those skilled in the art, and the required insulating sub-layer 203 can be selected according to actual needs.
  • a through hole 204 is provided in the middle of the insulating sublayer 203, and the side of the vibration layer 200 close to the insulating sublayer 203 is attached to the functional layer in the display panel to seal the through hole 204.
  • Cavity Obviously, in one embodiment, when specifically arranged, the side of the vibrating layer 200 close to the insulating sub-layer 203 can be set far from the color film layer 180, or can be set close to the color film Specifically, the side of the vibrating layer 200 close to the insulating sub-layer 203 is attached to the color film layer 180 in the display panel to form a cavity at the through hole 204; obviously, this structure In the process of vibration and sound generation of the vibrating layer 200, the vibration attenuation of the excitation sub-layer 205 can be well delayed, and the vibration and sound effect of the display panel can be improved.
  • the vibrating layer 200 is not limited to a single vibration output as a whole, but can also be configured to have a structure with multiple output positions.
  • the multi-output structure will be further detailed in the following embodiments. Said; Although, the single output mode, the process is simple, the cost is low, but the structure of multiple output positions can achieve better sound effect.
  • the vibration layer is arranged on one side of the color film layer.
  • This arrangement structure does not affect the structure and process of other functional layers, and is easy to manufacture the vibration layer and the display panel as a whole.
  • the process is simple, and at the same time,
  • the vibrating layer is made of transparent materials, which reduces the impact of the vibrating layer embedded in the display panel on the display of the display panel; in addition, the multi-layer structure of the vibrating layer allows the vibrating layer to have greater vibration displacement and can better drive the vibration output The entire display panel vibrates and sounds.
  • the vibrating layer 200 includes a plurality of arrays arranged The vibration unit 210;
  • the display panel includes a color filter layer 180, the color filter layer 180 includes a number of color resistors 181 arranged in an array and a black matrix 182 arranged between the color resistors 181; each of the vibration The units 210 are respectively arranged between the color resistors 181 and on one side of the black matrix 182; the projection of the black matrix 182 in the direction perpendicular to the color film layer 180 covers the vibration layer 200 in the vertical direction. Projection in the direction of the color film layer 180.
  • the vibrating layer 200 is embedded in the color film layer 180 in the form of a plurality of vibrating units 210 arranged in an array. Specifically, each vibrating unit 210 is disposed between each of the color resistors 181. It is located on one side of the black matrix 182; as shown in FIG. 2, specifically, the vibrating unit 210 is located under the black matrix 182; replacing the opaque part of the original black matrix 182; obviously, The projection of the black matrix 182 in the direction perpendicular to the color filter layer 180 covers the projection of the vibrating layer 200 in the direction perpendicular to the color filter layer 180. This arrangement will not affect the original display panel. The light path and display do not affect the aperture ratio of the display panel.
  • the hierarchical structure of the vibrating unit 210 may be the electrode sublayer 201, the piezo-electron layer 202 and other structures described above, and, based on the arrangement structure of the vibrating layer 200 in an embodiment, the The electrode sub-layer 201, the piezo-electron layer 202 and other materials can have various combinations, and the specific performance is best.
  • a vibration control integrated circuit (not shown in the figure) is provided in the display panel, and the vibration control integrated circuit is electrically connected to each of the vibration units 210; it is understandable that the vibration layer
  • the form of the several vibration units 210 arranged in an array 200 is a form of the aforementioned structure of the vibration layer 200 as a plurality of output positions; and the vibration control integrated circuit controls the vibration units 210 by precisely controlling the input voltages of them Vibration conditions; realize the vibration and sound of the entire panel. In this way, the vibration is more uniform and the power consumption is lower.
  • the vibrating layer is arranged between the color resistors and on one side of the black matrix, so that the vibrating layer is located in the middle of the display panel, which has a great impact on the entire display panel. It can drive sound without affecting the aperture ratio of the display panel; at the same time, the vibrating layer is structured in the form of vibrating units arranged in an array to achieve accurate sound generation at multiple output positions, more uniform vibration, and reduced power consumption.
  • the display panel includes a TFT array layer 130, so
  • the TFT array layer 130 includes a gate layer 131, each of the vibration units 210 is disposed on the TFT array layer 130 and corresponds to the gate layer 131, and the gate layer 131 is perpendicular to the TFT array
  • the projection on the layer 130 covers the projection of the vibration layer 200 perpendicular to the TFT array layer 130.
  • the material of the gate layer 131 is generally an opaque material; in one embodiment, the projection of the gate layer 131 perpendicular to the TFT array layer 130 covers the vibration layer 200 perpendicular to the The projection on the TFT array layer 130; the vibrating layer 200 is arranged in the form of a number of vibrating units 210 arranged in an array, and each vibrating unit 210 corresponds to the position of the gate in the gate layer 131. This arrangement is not It will affect the light path and display in the original display panel, and does not affect the aperture ratio of the display panel.
  • the TFT array layer 130 includes a substrate 132, and thin film transistors 1301 and pixel electrodes sequentially disposed on the substrate 132.
  • the thin film transistor 1301 specifically includes a source layer 133, a drain layer 134, a gate insulating sublayer 135, a gate layer 131 and an interlayer insulating sublayer 136; obviously, the TFT array
  • the specific structural level form of the layer 130 is in the prior art, and will not be described in detail here.
  • Each of the vibration units 210 is disposed on the common electrode layer 139.
  • each vibration unit 210 in the vibration layer 200 can be configured to be directly electrically connected to the vibration control integrated circuit through the common electrode layer 139, so as to facilitate the connection between the connection line and the control line in the TFT array layer 130. Integrated together; saving wiring space, the whole is more compact; in addition, each vibration unit 210 in the vibration layer 200 can also avoid direct connection with the common electrode, as shown in FIG. 6, the common electrode layer 139 is provided with passivation The protective layer 1391. The vibrating unit 210 in the vibrating layer 200 is disposed on the passivation protective layer 1391 to avoid crosstalk between the vibrating layer 200 and the common electrode.
  • the vibration layer 200 is disposed on the TFT array layer 130 and corresponds to the gate layer 131, which does not affect the aperture ratio of the display panel; at the same time, the vibration layer 200 is structured in an array arrangement
  • the form of the vibration unit 210 realizes accurate sound generation at multiple output positions, the vibration is more uniform, and the power consumption is reduced.
  • the position setting and structure of the vibrating layer 200 in this application can also be applied to OLED display panels, and the OLED display panel is lighter and thinner, more prone to vibration and sound; and the structure of the OLED display panel is more streamlined Without the liquid crystal layer, the vibration and sound of the screen will not affect the deflection of the liquid crystal; the specific implementation manner can refer to the foregoing multiple embodiments, which will not be repeated here.
  • a screen sounding display device of the present application embeds a vibrating layer in a display panel. Compared with the existing way of placing the vibrating layer under the display panel, the sounding screen structure of the present application does not need to reserve additional positions and positions of the vibrating layer. The space significantly reduces the thickness of the entire display panel and does not affect the assembly of the whole machine. In addition, embedding the vibrating layer in the display panel can also better drive the display panel to produce sound.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

本申请提供了一种屏幕发声显示装置，包括显示面板，及设置于所述显示面板内且位于所述显示面板的显示区内的振动层，所述振动层用于振动所述显示面板以发声申请。

Description

屏幕发声显示装置 技术领域
本申请涉及显示面板技术领域，尤其涉及一种屏幕发声显示装置。
 背景技术
随着电子技术的不断发展，工艺水平的不断提高，全面屏已经成为当下的一个热门趋势；而阻碍手机屏占比发展的问题之一来自于屏幕顶部的听筒传感器等必要组件，针对该问题，屏幕发声技术应运而生。目前，现有的屏幕发声是将振动层（激励器）放置于显示面板的下方，这样会明显增加整个模组的厚度，破坏整个模组的轻薄性，并且给整机组装也带了很多问题。
 技术问题
本申请实施例提供一种屏幕发声显示装置，通过将振动层嵌入到显示面板内，解决了现有振动层放置于显示面板的下方，明显增加整个模组的厚度，破坏整个模组的轻薄性的问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请实施例提供了一种屏幕发声显示装置，包括：
显示面板；
振动层，设置于所述显示面板内且位于所述显示面板的显示区内，用于振动所述显示面板以发声。
在本申请实施例所提供的屏幕发声显示装置中，所述振动层包括多个呈阵列布置的振动单元。
在本申请实施例所提供的屏幕发声显示装置中，所述显示面板包括彩膜层，所述彩膜层包括若干呈阵列布置的色阻和设置于各所述色阻之间的黑色矩阵；各所述振动单元分别设置于各所述色阻之间且位于所述黑色矩阵的一侧。
在本申请实施例所提供的屏幕发声显示装置中，所述黑色矩阵在垂直于所述彩膜层方向上的投影覆盖所述振动层在垂直于所述彩膜层方向上的投影。
在本申请实施例所提供的屏幕发声显示装置中，所述显示面板包括TFT阵列层，所述TFT阵列层包括栅极层，各所述振动单元均设置于所述TFT阵列层上且与所述栅极层对应。
在本申请实施例所提供的屏幕发声显示装置中，所述栅极层在垂直于所述TFT阵列层上的投影覆盖所述振动层在垂直于所述TFT阵列层上的投影。
在本申请实施例所提供的屏幕发声显示装置中，所述TFT阵列层包括衬底、及依次设置于衬底上薄膜晶体管、像素电极层、平坦层和公共电极层，各所述振动单元均设于所述公共电极层上。
在本申请实施例所提供的屏幕发声显示装置中，所述显示面板包括相对设置的TFT阵列层和彩膜层，所述振动层设置于所述彩膜层远离所述TFT阵列层的一侧，所述振动层材料为透明材料。
在本申请实施例所提供的屏幕发声显示装置中，所述显示面板还包括设于TFT阵列层与彩膜层之间的液晶层、设于所述彩膜层上方的上偏光片、设于上偏光片上的保护玻璃、以及触控层；所述彩膜层设于所述液晶层上，所述振动层设于所述彩膜层上；
所述触控层集成于所述保护玻璃内；或
所述触控层设置于所述振动层与所述上偏光片之间；或
所述触控层嵌入在所述液晶层内。
在本申请实施例所提供的屏幕发声显示装置中，所述振动层还包括一绝缘子层，所述激励子层设置于所述绝缘子层上。
在本申请实施例所提供的屏幕发声显示装置中，所述绝缘子层中部设有通孔，所述振动层上靠近所述绝缘子层的一侧与所述显示面板内的功能层贴合以将所述通孔密封形成空腔。
在本申请实施例所提供的屏幕发声显示装置中，所述压电子层的材料为锆钛酸铅、氮化铝、聚偏氟乙烯或聚偏氟乙烯－三氟乙烯共聚物。
在本申请实施例所提供的屏幕发声显示装置中，所述电极子层材料为金属或氧化铟锡。
 有益效果
本申请的有益效果为：本申请一种屏幕发声显示装置，将振动层嵌入到显示面板内，相比于现有的将振动层放置于显示面板下方的方式，本申请的屏幕发声结构无需额外预留振动层的位置和空间，明显降低了整个显示面板的厚度，也不影响整机组装，此外，将振动层嵌入到显示面板内，也可以更好的带动显示面板进行发声。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种屏幕发声显示装置的结构示意图；
图2为本申请实施例提供的另一种屏幕发声显示装置的结构示意图；
图3为本申请实施例提供的又一种屏幕发声显示装置的结构示意图；
图4为图3中TFT阵列层与振动层的结构示意图；
图5为本申请实施例提供的一种屏幕发声显示装置中振动层的结构示意图；
图6为本申请实施例提供的一种屏幕发声显示装置中振动层的另一结构示意图。
 本发明的实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用来描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用来描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
下面结合附图和实施例对本申请作进一步说明。
实施例1
如图1所示，本申请实施例提供了一种屏幕发声显示装置，包括：
显示面板100；
振动层200，设置于所述显示面板100内且位于所述显示面板100的显示区101内，用于振动所述显示面板100以发声。
在一实施例中，根据本申请目的，为保证显示面板全面屏而将听筒做隐藏式设计，振动层200集成或嵌入与所述显示面板100内，可以理解的是，本申请中振动层200可以位于所述显示面板100的显示区101内的任何位置，具体的，可位于原有听筒设计位置，即位于所述显示面板100上端替代原有听筒的位置，例如，对于手机终端而言，振动层200位置位于远离手机中话筒一端。
可以理解的是，本申请中，所述显示面板100可以是LCD显示面板，也可以是OLED显示面板等，其中，现有技术中，LCD显示面板根据触控层结构位置不同又包含OGS、In cell、On cell等形式；在一实施例中，以触控层On cell的LCD显示面板为例。
在一实施例中，如图1所示，显示面板100包括相对设置的TFT阵列层130和彩膜层180，所述振动层200设置于所述彩膜层180远离所述TFT阵列层130的一侧，所述振动层200材料为透明材料。
在一实施例中，，如图1所示，所述振动层200位于彩膜层180上侧，即所述彩膜层180远离所述TFT阵列层130的一侧，具体的，位于所述彩膜层180上玻璃板上。此外，振动层200材料为透明材料，显然可以避免对彩膜层180透光部分的遮挡，降低对显示面板显示效果的影响。
在一实施例中，如图1所示，
所述显示面板还包括设于TFT阵列层130与彩膜层之间的液晶层140、设于所述彩膜层180上方的上偏光片150、设于上偏光片150上的保护玻璃160、以及触控层170；所述彩膜层180设于所述液晶层140上，所述振动层200设于所述彩膜层180上，所述触控层170设置于所述振动层200与所述上偏光片150之间；此外，还包括背光模组110、下偏光片120。
承上，当显示面板为其它如OGS、In cell形式时，本申请中只存在触控层170位置不同，比如，所述触控层170集成于所述保护玻璃160内；或者所述触控层170嵌入在所述液晶层140内等；在一实施例中振动层200的位置不变，不影响在一实施例中显示面板整体的震动效果，因而，本申请的技术方案具备良好的适应性。
在一实施例中，如图5所示，所述振动层200包括激励子层205，所述激励子层205包括若干电极子层201，各相邻两所述电极子层201之间均设有一压电子层202。其中，振动层200的发声技术原理为现有技术，通过对其中一电极子层201输入交流电，压电子层202会发生向上或者向下的振动，从而带动整个显示面板发生振动，发出声音，实现屏幕发声。
具体的，所述电极子层201的材料可以采用Ag，Al，Mo，Au，Cr，Ni，Cu，Pt中的一种金属或者几种金属的合金；也可以是透明电极ITO（氧化铟锡）；在一实施例中，所述振动层200材料为透明材料，具体的，电极子层201的材料为氧化铟锡；
承上，所述压电子层202的材料可以是压电陶瓷锆钛酸铅PZT，氮化铝AlN，聚偏氟乙烯PVDF，或者共聚物为聚偏氟乙烯－三氟乙烯共聚物 P(VDF-TrFE)等；在一实施例中，所述振动层200材料为透明材料，具体的，压电子层202的材料为具有一定透光性的聚偏氟乙烯PVDF；
值得注意的是，如图5所示，本申请中，激励子层205采用的是多电极子层201的结构，比如四层电极子层201结构；显然，此类多层结构相对于现有的双层结构或其它结构具有更大的振动位移，可以更好的将振动输出带动整个显示面板振动发声。
在一实施例中，如图6所示，所述振动层200还包括一绝缘子层203，所述激励子层205设置于所述绝缘子层203上，所述绝缘子层203中部设有通孔204，所述振动层200上靠近所述绝缘子层203的一侧与所述显示面板内的功能层贴合以将所述通孔204密封形成空腔。
可以理解的是，所述绝缘子层203的材料可以是透明或非透明材料，此皆属于本领域技术人员所熟知的技术常识，可根据实际需要进行选择制作出所需绝缘子层203。
承上，所述绝缘子层203中部设有通孔204，所述振动层200上靠近所述绝缘子层203的一侧与所述显示面板内的功能层贴合以将所述通孔204密封形成空腔；显然，在一实施例中，具体设置时，所述振动层200上靠近所述绝缘子层203的一侧可以设置成远离所述彩膜层180，也可以设置成靠近所述彩膜层180；具体的，所述振动层200上靠近所述绝缘子层203的一侧与所述显示面板内的彩膜层180贴合在所述通孔204处形成空腔；显然，此种结构，在振动层200振动发声的过程中，可以很好的延缓激励子层205的振动衰减，提高显示面板的振动发声效果。
此外，可以理解的是，在一实施例中，振动层200不限于整体的单一振动输出，还可以被构造成具备多个输出位置的结构，该多输出结构在后面实施例中再做进一步详述；虽然，单一的输出方式，工艺简单、成本较低，但多个输出位置的结构却能达到更好的发声效果。
综上所述，本申请中将振动层设置于彩膜层的一侧，此种设置结构不影响其它功能层的结构和工艺，易于振动层和显示面板的整体制造，工艺简单，同时，将振动层材料采用透明材料，降低了振动层嵌入在显示面板内对显示面板显示的影响；此外，振动层采用多层结构，使得振动层具备更大的振动位移，可以更好的将振动输出带动整个显示面板振动发声。
实施例2
本实施例与前述实施例的不同之处在于振动层200的设置位置和振动层200的布置结构不同，在一实施例中，如图2所示，所述振动层200包括多个呈阵列布置的振动单元210；所述显示面板包括彩膜层180，所述彩膜层180包括若干呈阵列布置的色阻181和设置于各所述色阻181之间的黑色矩阵182；各所述振动单元210分别设置于各所述色阻181之间且位于所述黑色矩阵182的一侧；所述黑色矩阵182在垂直于所述彩膜层180方向上的投影覆盖所述振动层200在垂直于所述彩膜层180方向上的投影。
可以理解的是，所述振动层200以阵列布置的多个振动单元210的形式，嵌入于所述彩膜层180中，具体的，各所述振动单元210设置于各所述色阻181之间且位于所述黑色矩阵182的一侧；如图2所示，具体的，所述振动单元210位于所述黑色矩阵182下方；替代原有黑色矩阵182不透光的部分位置；显然，所述黑色矩阵182在垂直于所述彩膜层180方向上的投影覆盖所述振动层200在垂直于所述彩膜层180方向上的投影，此种设置方式不会影响原有显示面板内的光路以及显示，不影响显示面板的开口率。
此外，可以理解的是，所述振动单元210的层级结构可以是前述所描述的电极子层201、压电子层202等结构，并且，基于在一实施例中振动层200的设置结构，所述电极子层201和压电子层202等的材料可以有多种组合，具体以性能最佳为宜。
在一实施例中，所述显示面板内设有振动控制集成电路（图中未出示），所述振动控制集成电路分别与各所述振动单元210电性连接；可以理解的是，将振动层200设置为阵列布置的若干振动单元210的形式为前述将振动层200构造为多个输出位置结构的一种形成；并且，振动控制集成电路通过精确控制这些振动单元210的输入电压，来控制它们的振动情况；实现整个面板的振动发声，此种方式，振动更加均匀，功耗更低。
可以理解的是，如图2所示，所述显示面板中的其它功能层以及结构形式在前述实施例中已做说明，在此不再赘述。
综上所述，本申请中将振动层设置于各所述色阻之间且位于所述黑色矩阵的一侧，使得所述振动层位于所述显示面板中部的位置，对显示面板整体有很好的带动发声作用，也不影响显示面板的开口率；同时，振动层被构造呈阵列化布置的振动单元的形式，实现多输出位置的精确发声，振动更加均匀，降低了功耗。
实施例3
本实施例与前述实施例的不同之处在于振动层200的设置位置和振动层200的布置结构不同，在一实施例中，如图3所示，所述显示面板包括TFT阵列层130，所述TFT阵列层130包括栅极层131，各所述振动单元210均设置于所述TFT阵列层130上且与所述栅极层131对应，所述栅极层131在垂直于所述TFT阵列层130上的投影覆盖所述振动层200在垂直于所述TFT阵列层130上的投影。
可以理解的是，栅极层131的材料一般为不透明材料；在一实施例中，所述栅极层131在垂直于所述TFT阵列层130上的投影覆盖所述振动层200在垂直于所述TFT阵列层130上的投影；将振动层200设置为阵列布置的若干振动单元210的形式且各振动单元210分别与所述栅极层131中栅极的位置相对应，此种设置方式不会影响原有显示面板内的光路以及显示，不影响显示面板的开口率。
在一实施例中，如图4所示，以TFT阵列层130为顶栅结构为例，所述TFT阵列层130包括衬底132、及依次设置于衬底132上的薄膜晶体管1301、像素电极层137、平坦层138和公共电极层139，所述薄膜晶体管1301具体包括源极层133、漏级层134、栅极绝缘子层135、栅极层131和层间绝缘子层136；显然，TFT阵列层130具体的结构层级形式为现有技术，在此不再详细说明，各所述振动单元210均设于所述公共电极层139上。
值得注意的是，所述振动层200中的各振动单元210可设置成直接通过公共电极层139与所述振动控制集成电路电性连接，以便于将连接线路与TFT阵列层130中的控制线路集成在一起；节省线路布置空间，整体更加紧凑；此外，所述振动层200中的各振动单元210也可避免与公共电极直接连接，如图6所示，公共电极层139上设有钝化保护层1391，所述振动层200中的振动单元210设置于钝化保护层1391上，避免振动层200与公共电极发声相互串扰。
可以理解的是，如图3所示，所述显示面板中的其它功能层以及结构形式在前述实施例中已做说明，在此不再赘述。
综上所述，本申请中将振动层200设置于所述TFT阵列层130上且与所述栅极层131对应，不影响显示面板的开口率；同时，振动层200被构造呈阵列化布置的振动单元210的形式，实现多输出位置的精确发声，振动更加均匀，降低了功耗。
此外，如前所述，本申请中振动层200的位置设置和结构形式还可应用于OLED显示面板中，并且OLED显示面板更加轻薄，更容易发生振动以及发出声音；并且OLED显示面板结构更加精简，没有液晶层，屏幕振动发声不会对液晶偏转产生影响；具体的实施方式可参考前述多个实施例，在此不再赘述。
本申请一种屏幕发声显示装置，将振动层嵌入到显示面板内，相比于现有的将振动层放置于显示面板下方的方式，本申请的屏幕发声结构无需额外预留振动层的位置和空间，明显降低了整个显示面板的厚度，也不影响整机组装，此外，将振动层嵌入到显示面板内，也可以更好的带动显示面板进行发声。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (14)

  1. 一种屏幕发声显示装置，包括：
    显示面板；以及
    振动层，设置于所述显示面板内且位于所述显示面板的显示区内，用于振动所述显示面板以发声。
  2. 根据权利要求1所述的屏幕发声显示装置，其中，所述振动层包括多个呈阵列布置的振动单元。
  3. 根据权利要求2所述的屏幕发声显示装置，其中，所述显示面板包括彩膜层，所述彩膜层包括若干呈阵列布置的色阻和设置于各所述色阻之间的黑色矩阵；各所述振动单元分别设置于各所述色阻之间且位于所述黑色矩阵的一侧。
  4. 根据权利要求3所述的屏幕发声显示装置，其中，所述黑色矩阵在垂直于所述彩膜层方向上的投影覆盖所述振动层在垂直于所述彩膜层方向上的投影。
  5. 根据权利要求2所述的屏幕发声显示装置，其中，所述显示面板包括TFT阵列层，所述TFT阵列层包括栅极层，各所述振动单元均设置于所述TFT阵列层上且与所述栅极层对应。
  6. 根据权利要求5所述的屏幕发声显示装置，其中，所述栅极层在垂直于所述TFT阵列层上的投影覆盖所述振动层在垂直于所述TFT阵列层上的投影。
  7. 根据权利要求5所述的屏幕发声显示装置，其中，所述TFT阵列层包括衬底、及依次设置于衬底上薄膜晶体管、像素电极层、平坦层和公共电极层，各所述振动单元均设于所述公共电极层上。
  8. 根据权利要求1所述的屏幕发声显示装置，其中，所述显示面板包括相对设置的TFT阵列层和彩膜层，所述振动层设置于所述彩膜层远离所述TFT阵列层的一侧，所述振动层材料为透明材料。
  9. 根据权利要求8所述的屏幕发声显示装置，其中，所述显示面板还包括设于TFT阵列层与彩膜层之间的液晶层、设于所述彩膜层上方的上偏光片、设于上偏光片上的保护玻璃、以及触控层；所述彩膜层设于所述液晶层上，所述振动层设于所述彩膜层上；所述触控层集成于所述保护玻璃内；或
    所述触控层设置于所述振动层与所述上偏光片之间；或
    所述触控层嵌入在所述液晶层内。
  10. 根据权利要求1所述的屏幕发声显示装置，其中，所述振动层包括激励子层，所述激励子层包括若干电极子层，各相邻两所述电极子层之间均设有一压电子层。
  11. 根据权利要求10所述的屏幕发声显示装置，其中，所述振动层还包括一绝缘子层，所述激励子层设置于所述绝缘子层上。
  12. 根据权利要求11所述的屏幕发声显示装置，其中，所述绝缘子层中部设有通孔，所述振动层上靠近所述绝缘子层的一侧与所述显示面板内的功能层贴合以将所述通孔密封形成空腔。
  13. 根据权利要求12所述的屏幕发声显示装置，其中，所述压电子层的材料为锆钛酸铅、氮化铝、聚偏氟乙烯或聚偏氟乙烯－三氟乙烯共聚物。
  14. 根据权利要求13所述的屏幕发声显示装置，其中，所述电极子层材料为金属或氧化铟锡。
PCT/CN2019/101823 2019-06-17 2019-08-21 屏幕发声显示装置 Ceased WO2020252889A1 (zh)

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