WO2019080319A1 - 触控模组、液晶显示屏及终端设备 - Google Patents

触控模组、液晶显示屏及终端设备

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Publication number
WO2019080319A1
WO2019080319A1 PCT/CN2017/116751 CN2017116751W WO2019080319A1 WO 2019080319 A1 WO2019080319 A1 WO 2019080319A1 CN 2017116751 W CN2017116751 W CN 2017116751W WO 2019080319 A1 WO2019080319 A1 WO 2019080319A1
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WIPO (PCT)
Prior art keywords
diffusion plate
touch module
electromagnetic
back surface
limiting
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Ceased
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PCT/CN2017/116751
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English (en)
French (fr)
Inventor
郑少洪
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Application filed by Guangzhou Shiyuan Electronics Thecnology Co Ltd, Guangzhou Shirui Electronics Co Ltd filed Critical Guangzhou Shiyuan Electronics Thecnology Co Ltd
Publication of WO2019080319A1 publication Critical patent/WO2019080319A1/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
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch module and a liquid crystal display and a terminal device including the same.
  • Liquid crystal displays have become the mainstream display in the market due to their low electromagnetic radiation, low power consumption, low heat generation, and light weight.
  • the combination of commonly used liquid crystal displays and touch devices has become a major trend in the market development, and the experience of touch input is becoming higher and higher.
  • the electromagnetic screen technology has been widely used.
  • a light source is disposed on the back of the liquid crystal panel, and the electromagnetic panel is mounted on the liquid crystal panel. Due to the presence of some fine texture on the electromagnetic plate, the effect of the light source on the liquid crystal screen is seriously affected.
  • the prior art discloses a direct-lit backlight display module and a display device, which are disposed between a light-emitting structure and a diffusion plate, and are made on the electromagnetic film by diffusion of the diffusion plate.
  • the texture is blurred so as not to affect the display function of the LCD screen.
  • the electromagnetic diaphragm has a certain expansion coefficient, the back surface of the electromagnetic diaphragm faces the light source, and the heat emitted by the light source causes the electromagnetic diaphragm to be deformed. When the temperature is lowered, the electromagnetic diaphragm is warped and deformed, thereby causing unevenness thereof, thereby seriously affecting the liquid crystal. The touch effect of the screen.
  • An object of the embodiments of the present invention is to provide a touch module capable of ensuring an electromagnetic diaphragm Flatness.
  • Another object of the embodiments of the present invention is to provide a liquid crystal display and a terminal device, which have good touch effects and display functions.
  • the embodiment of the present invention adopts the following technical solutions:
  • a touch module including a diffusion plate and an electromagnetic diaphragm
  • the diffusion plate includes two stacked first diffusion plates and a second diffusion plate
  • the electromagnetic film is disposed on the first diffusion Between the plate and the second diffusion plate, the front surface of the electromagnetic film is in close contact with the back surface of the first diffusion plate, and the back surface of the electromagnetic film is in close contact with the front surface of the second diffusion plate.
  • the front surface of the electromagnetic film is connected to the back surface of the first diffusion plate by OCA glue, and the back surface of the electromagnetic film is connected to the front surface of the second diffusion plate by OCA glue.
  • the second diffusion plate is adjacent to the periphery thereof and protrudes from the electromagnetic film with a plurality of limiting posts, and the electromagnetic diaphragm is disposed with the position of the limiting post.
  • the limiting post is mated with the first limiting hole.
  • the diffusion plate has a rectangular structure, and the four corners of the second diffusion plate are respectively provided with one of the limiting posts.
  • the first diffusion plate is provided with a second limiting hole corresponding to the position of the limiting post, and the limiting post is inserted into the second limiting hole.
  • a plurality of support columns are further included, and the support columns are connected to the back surface of the second diffusion plate.
  • the support column is made of plastic material.
  • a plurality of the support columns are spaced apart from the back surface of the second diffusion plate.
  • a liquid crystal display that includes the touch module.
  • a terminal device including the touch module.
  • the utility model has the beneficial effects that the electromagnetic diaphragm is disposed between the first diffusion plate and the second diffusion plate, and the electromagnetic diaphragm is clamped by the first diffusion plate and the second diffusion plate, and Increase the strength of the electromagnetic diaphragm to prevent the electromagnetic diaphragm from affecting its flatness due to warping deformation.
  • FIG. 1 is a cross-sectional view of a touch module according to an embodiment of the present invention.
  • a diffusion plate 11. a first diffusion plate; 12, a second diffusion plate; 2. an electromagnetic film.
  • the touch module includes a diffusion plate 1 and an electromagnetic film 2 .
  • the diffusion plate 1 includes two stacked first diffusion plates 11 and 2 .
  • the diffusion plate 12 and the electromagnetic film 2 are disposed between the first diffusion plate 11 and the second diffusion plate 12, and the front surface of the electromagnetic film 2 is in close contact with the back surface of the first diffusion plate 11, and the back surface of the electromagnetic film 2 is The front surface of the two diffusion plates 12 is in close contact.
  • the electromagnetic diaphragm 2 is disposed between the first diffusion plate 11 and the second diffusion plate 12, and the electromagnetic diaphragm 2 is clamped by the first diffusion plate 11 and the second diffusion plate 12, and the electromagnetic film can be added.
  • the strength of 2 prevents the electromagnetic diaphragm 2 from affecting its flatness due to warping deformation.
  • the front surface of the electromagnetic film 2 is connected to the back surface of the first diffusion plate 11 by OCA glue, and the back surface of the electromagnetic film 2 passes through the front surface of the OCA glue and the second diffusion plate 12. connection.
  • OCA (Optically Clear Adhesive) glue is a transparent liquid, which is an optical glue dedicated to touch screens.
  • the electromagnetic diaphragm 2 is adhered and fixed between the first diffusion plate 11 and the second diffusion plate 12 by using OCA glue, so that the diffusion plate 1 can maintain its original light transmission and diffusion effect, and the electromagnetic film can be further ensured.
  • the second diffuser 12 is adjacent to the periphery thereof and has a plurality of limiting posts protruding toward the electromagnetic diaphragm 2, and the electromagnetic diaphragm 2 is provided with a position corresponding to the position of the limiting post.
  • the first limiting hole, the limiting post is inserted into the first limiting hole (not shown), and the limiting column is used for pulling and fixing the electromagnetic diaphragm 2, which can prevent the electromagnetic diaphragm 2 from being warped and deformed.
  • the flatness of the electromagnetic diaphragm 2 is simplified, and the assembly process of the electromagnetic diaphragm 2 is simplified.
  • the limit pillar is adjacent to the circumference of the second diffusion plate 12, and does not affect the diffusion effect of the diffusion plate 1 and the touch effect of the liquid crystal display.
  • the diffusing plate 1 in this embodiment has a rectangular structure.
  • the four corners of the second diffusing plate 12 are respectively provided with a limiting column.
  • the limiting holes on the electromagnetic diaphragm 2 are also disposed at the four corners thereof.
  • the limiting posts are disposed at the four corners of the second diffusion plate 12 to prevent the diffusion effect of the diffusion plate 1 and the touch effect of the liquid crystal display from being affected.
  • the first diffusion plate 11 is provided with a second limiting hole corresponding to the position of the limiting post, and the limiting post is inserted into the second limiting hole.
  • the electromagnetic diaphragm 2 and the first diffusion plate 11 are sequentially fixed on the limiting post of the second diffusion plate 11, and the assembly process of the electromagnetic diaphragm 2 and the diffusion plate 1 is very simple, and the first diffusion can be made.
  • the position between the plate 11 and the second diffusion plate 12 remains relatively fixed.
  • the touch module of the embodiment further includes a plurality of support columns, and the plurality of support columns are connected to the back surface of the second diffusion plate 12 (not shown), and the diffusion plate 1 is supported by the support columns to prevent the diffusion plate 1 from being deformed.
  • the second diffusion plate 12 separates the support column from the electromagnetic diaphragm 2, and prevents the support column from directly contacting the electromagnetic diaphragm 2 to cause abrasion on the electromagnetic diaphragm 2, thereby effectively protecting the electromagnetic diaphragm 2.
  • the support column is made of a plastic material, such as a PMMA material or a PC material.
  • the plurality of support columns are spaced apart from the back surface of the second diffusion plate 12 to further improve the support stability of the support column to the diffusion plate 1 .
  • the embodiment of the present invention further provides a liquid crystal display panel comprising the touch module of any of the above embodiments.
  • the liquid crystal display of the embodiment has good touch effects and display functions.
  • the embodiment of the present invention further provides a terminal device, such as a smart tablet, a liquid crystal television, or the like, which includes the touch module of any of the above embodiments.
  • a terminal device such as a smart tablet, a liquid crystal television, or the like, which includes the touch module of any of the above embodiments.
  • the display screen of the terminal device of this embodiment has a good touch effect and a display function.

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

Abstract

一种触控模组、液晶显示屏及终端设备，其中，触控模组包括扩散板（1）和电磁膜片（2），扩散板（1）包括两层叠置的第一扩散板（11）和第二扩散板（12），电磁膜片（2）设置于第一扩散板（11）和第二扩散板（12）之间，且电磁膜片（2）的正面与第一扩散板（11）的背面紧贴，电磁膜片（2）的背面与第二扩散板（12）的正面紧贴。将电磁膜片（2）设置在第一扩散板（11）和第二扩散板（12）之间，并通过第一扩散板（11）和第二扩散板（12）将电磁膜片（2）夹紧，可以增加电磁膜片（2）的强度，避免电磁膜片（2）因翘曲变形而影响其平整性。

Description

触控模组、液晶显示屏及终端设备 技术领域
本实用新型涉及显示屏技术领域，尤其涉及一种触控模组及包括该触控模组的液晶显示屏和终端设备。
背景技术
液晶显示器由于具有电磁辐射低、功耗低、发热量少、轻薄等特点，已经成为市面的主流显示器。在显示屏技术领域中，随着输入技术和显示技术的不断进步，将常用的液晶显示器和触控设备相结合已经成为市场发展的主要趋势，对触控输入的体验要求也越来越高，如越来追求原笔迹手写输入效果，因此，电磁屏技术得到了广泛应用。在传统的直下式LED背光显示器中，光源设置在液晶屏的背面，电磁板安装于液晶屏上。由于电磁板上存在一些细小的纹理，会严重影响光源对液晶屏的作用效果。
为解决上述技术问题，现有技术公开了一种直下式背光显示模组及显示设备，其将电磁膜片设置在发光结构及扩散板之间，通过扩散板的扩散作用使电磁膜片上的纹理模糊化，从而不会影响液晶屏的显示功能。由于电磁膜片具有一定的膨胀系数，电磁膜片的背面正对光源，光源散发的热量会使电磁膜片发生变形，温度降低时电磁膜片发生翘曲变形导致其不平整，从而严重影响液晶屏的触控效果。
实用新型内容
本实用新型实施例的一个目的在于提供一种触控模组，可保证电磁膜片的 平整性。
本实用新型实施例的另一个目的在于提供一种液晶显示屏和终端设备，具有良好的触控效果和显示功能。
为达上述目的，本实用新型实施例采用以下技术方案：
一方面，提供一种触控模组，包括扩散板和电磁膜片，所述扩散板包括两层叠置的第一扩散板和第二扩散板，所述电磁膜片设置于所述第一扩散板和所述第二扩散板之间，且所述电磁膜片的正面与所述第一扩散板的背面紧贴，所述电磁膜片的背面与所述第二扩散板的正面紧贴。
作为触控模组的优选方案，所述电磁膜片的正面通过OCA胶水与所述第一扩散板的背面连接，所述电磁膜片的背面通过OCA胶水与所述第二扩散板的正面连接。
作为触控模组的优选方案，所述第二扩散板邻近其周部且朝向所述电磁膜片凸设有若干限位柱，所述电磁膜片上设置有与所述限位柱的位置相对应的第一限位孔，所述限位柱与所述第一限位孔插接配合。
作为触控模组的优选方案，所述扩散板为矩形结构，所述第二扩散板的四角分别设置有一个所述限位柱。
作为触控模组的优选方案，所述第一扩散板上设置有与所述限位柱的位置相对应的第二限位孔，所述限位柱与所述第二限位孔插接配合。
作为触控模组的优选方案，还包括若干支撑柱，若干所述支撑柱与所述第二扩散板的背面连接。
作为触控模组的优选方案，所述支撑柱为塑料材质。
作为触控模组的优选方案，若干所述支撑柱间隔设置于所述第二扩散板的背面。
另一方面，提供一种液晶显示屏，其包括所述的触控模组。
又一方面，提供一种终端设备，其包括所述的触控模组。
本实用新型实施例的有益效果为：本实用新型将电磁膜片设置在第一扩散板和第二扩散板之间，并通过第一扩散板和第二扩散板将电磁膜片夹紧，可以增加电磁膜片的强度，避免电磁膜片因翘曲变形而影响其平整性。
附图说明
下面根据附图和实施例对本实用新型作进一步详细说明。
图1为本实用新型实施例所述的触控模组的剖视图。
图中：
1、扩散板；11、第一扩散板；12、第二扩散板；2、电磁膜片。
具体实施方式
下面结合附图并通过具体实施方式来进一步说明本实用新型的技术方案。
本实用新型的实施例提供一种触控模组，如图1所示，触控模组包括扩散板1和电磁膜片2，扩散板1包括两层叠置的第一扩散板11和第二扩散板12，电磁膜片2设置于第一扩散板11和第二扩散板12之间，且电磁膜片2的正面与第一扩散板11的背面紧贴，电磁膜片2的背面与第二扩散板12的正面紧贴。本实施例将电磁膜片2设置在第一扩散板11和第二扩散板12之间，并通过第一扩散板11和第二扩散板12将电磁膜片2夹紧，可以增加电磁膜片2的强度，避免电磁膜片2因翘曲变形而影响其平整性。
作为本实用新型优选的实施例，电磁膜片2的正面通过OCA胶水与第一扩散板11的背面连接，电磁膜片2的背面通过OCA胶水与第二扩散板12的正面 连接。OCA(Optically Clear Adhesive)胶水为透明液体，是一种专用于触摸屏的光学胶水。本实施例采用OCA胶水将电磁膜片2粘贴固定在第一扩散板11和第二扩散板12之间，可以使扩散板1保持其原有的透光、扩散效果，且可以进一步保证电磁膜片2的平整性。
作为本实用新型另一优选的实施例，第二扩散板12邻近其周部且朝向电磁膜片2凸设有若干限位柱，电磁膜片2上设置有与限位柱的位置相对应的第一限位孔，限位柱与第一限位孔插接配合(图中未示出)，限位柱用于拉撑、固定电磁膜片2，可以防止电磁膜片2翘曲变形而影响其平整性，而且简化了电磁膜片2的组装工艺，限位柱邻近第二扩散板12的周部，不会影响扩散板1的扩散效果和液晶显示屏的触控效果。
本实施例中的扩散板1为矩形结构，优选地，第二扩散板12的四角分别设置有一个限位柱，对应地，电磁膜片2上的限位孔也是设置在其四角，通过将限位柱设置在第二扩散板12的四角，可以防止扩散板1的扩散效果和液晶显示屏的触控效果受到影响。
在本实用新型进一步优选的实施例中，第一扩散板11上设置有与限位柱的位置相对应的第二限位孔，限位柱与第二限位孔插接配合。组装时，将电磁膜片2和第一扩散板11依次固定在第二扩散板11的限位柱上即可，电磁膜片2和扩散板1的组装工艺非常简单，且可以使第一扩散板11和第二扩散板12之间的位置保持相对固定。
本实施例的触控模组还包括若干支撑柱，若干支撑柱与第二扩散板12的背面连接(图中未示出)，通过支撑柱对扩散板1进行支撑，避免扩散板1发生变形而引起触摸失效，第二扩散板12将支撑柱与电磁膜片2隔开，避免支撑柱与电磁膜片2直接接触而对电磁膜片2造成磨损，有效保护电磁膜片2。
本实施例中，支撑柱为塑料材质，例如PMMA材质或PC材质。
其中，若干支撑柱间隔设置于第二扩散板12的背面，以进一步提高支撑柱对扩散板1的支撑稳定性。
本实用新型的实施例还提供一种液晶显示屏，其包括上述任一实施例的触控模组。本实施例的液晶显示屏具有良好的触控效果和显示功能。
本实用新型的实施例还提供一种终端设备，例如智能平板、液晶电视等，其包括上述任一实施例的触控模组。本实施例的终端设备的显示屏具有良好的触控效果和显示功能。
需要声明的是，上述具体实施方式仅仅为本实用新型的较佳实施例及所运用技术原理，在本实用新型所公开的技术范围内，任何熟悉本技术领域的技术人员所容易想到的变化或替换，都应涵盖在本实用新型的保护范围内。
以上通过具体的实施例对本实用新型进行了说明，但本实用新型并不限于这些具体的实施例。本领域技术人员应该明白，还可以对本实用新型做各种修改、等同替换、变化等等。但是，这些变换只要未背离本实用新型的精神，都应在本实用新型的保护范围之内。另外，本申请说明书和权利要求书所使用的一些术语并不是限制，仅仅是为了便于描述。

Claims (10)

  1. 一种触控模组，其特征在于，包括扩散板和电磁膜片，所述扩散板包括两层叠置的第一扩散板和第二扩散板，所述电磁膜片设置于所述第一扩散板和所述第二扩散板之间，且所述电磁膜片的正面与所述第一扩散板的背面紧贴，所述电磁膜片的背面与所述第二扩散板的正面紧贴。
  2. 根据权利要求1所述的触控模组，其特征在于，所述电磁膜片的正面通过OCA胶水与所述第一扩散板的背面连接，所述电磁膜片的背面通过OCA胶水与所述第二扩散板的正面连接。
  3. 根据权利要求1所述的触控模组，其特征在于，所述第二扩散板邻近其周部且朝向所述电磁膜片凸设有若干限位柱，所述电磁膜片上设置有与所述限位柱的位置相对应的第一限位孔，所述限位柱与所述第一限位孔插接配合。
  4. 根据权利要求3所述的触控模组，其特征在于，所述扩散板为矩形结构，所述第二扩散板的四角分别设置有一个所述限位柱。
  5. 根据权利要求3所述的触控模组，其特征在于，所述第一扩散板上设置有与所述限位柱的位置相对应的第二限位孔，所述限位柱与所述第二限位孔插接配合。
  6. 根据权利要求1至5任一项所述的触控模组，其特征在于，还包括若干支撑柱，若干所述支撑柱与所述第二扩散板的背面连接。
  7. 根据权利要求6所述的触控模组，其特征在于，所述支撑柱为塑料材质。
  8. 根据权利要求7所述的触控模组，其特征在于，若干所述支撑柱间隔设置于所述第二扩散板的背面。
  9. 一种液晶显示屏，其特征在于，包括权利要求1至8任一项所述的触控模组。
  10. 一种终端设备，其特征在于，包括权利要求1至8任一项所述的触控模组。
PCT/CN2017/116751 2017-10-23 2017-12-17 触控模组、液晶显示屏及终端设备 Ceased WO2019080319A1 (zh)

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