WO2021003909A1 - 一种红外触控显示装置及其制备方法 - Google Patents

一种红外触控显示装置及其制备方法 Download PDF

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Publication number
WO2021003909A1
WO2021003909A1 PCT/CN2019/115492 CN2019115492W WO2021003909A1 WO 2021003909 A1 WO2021003909 A1 WO 2021003909A1 CN 2019115492 W CN2019115492 W CN 2019115492W WO 2021003909 A1 WO2021003909 A1 WO 2021003909A1
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WO
WIPO (PCT)
Prior art keywords
infrared
cover plate
display panel
cover
sealant
Prior art date
Application number
PCT/CN2019/115492
Other languages
English (en)
French (fr)
Inventor
胡崇铭
萧宇均
唐国富
周明军
Original Assignee
深圳市华星光电半导体显示技术有限公司
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.)
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US16/625,713 priority Critical patent/US11182002B2/en
Publication of WO2021003909A1 publication Critical patent/WO2021003909A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • This application relates to the field of display technology, and in particular to an infrared touch display device and a manufacturing method thereof.
  • Infrared touch In the display field, infrared touch currently occupies a large part of the touch market by virtue of mature technology, accurate touch accuracy, and relative cost advantages. Infrared touch is to analyze the touch position by blocking the infrared rays emitted by the infrared frame for positioning.
  • the combination between the display panel and the glass cover is generally the use of surface mount technology (Direct Bonding or Air Bonding is the main bonding technology.
  • the touch display device that is bonded by frame bonding technology has a lower cost than the touch display device that is bonded by surface bonding technology.
  • due to the use of frame sticker technology a cavity will be formed between the middle area of the cover and the middle area of the display panel, and only the sealant is used to achieve the seal.
  • the present application provides an infrared touch display device and a preparation method thereof, which can solve the problem of poor waterproof and dustproof effect of the existing infrared touch display device when the cover plate is attached. Poor, and affect the infrared touch performance and other issues.
  • the present application provides a method for manufacturing an infrared touch display device.
  • the method includes the following steps:
  • Step S10 coating sealant on the periphery of the display panel or cover plate
  • Step S20 sending the cover plate and the display panel into a vacuum chamber, and evacuating the vacuum chamber with a vacuum pump in a sealed environment;
  • Step S30 aligning the cover plate and the display panel.
  • the part of the cover plate corresponding to the middle area enclosed by the sealant is recessed toward one side of the display panel and is The display panel is tightly attached, and the peripheral edge of the display panel and the peripheral edge of the cover plate are sealed by the sealant;
  • an infrared touch component is arranged around the cover plate, and the infrared touch component includes multiple sets of infrared emitting tubes and infrared receiving tubes arranged in a one-to-one correspondence.
  • step S30 specifically includes the following steps:
  • the vacuum pump energizes the cover plate, the display panel and the display panel through the gap between the sealant and the cover plate/the display panel.
  • the cavity enclosed by the sealant is evacuated so that the cover plate is pressed toward the display panel, so that the part of the cover plate corresponding to the middle area is recessed toward the side of the display panel and is in contact with the display panel.
  • the display panel fits tightly.
  • a heating device in the vacuum chamber is used to heat the display panel and the cover plate, so that the sealant is melted, and the vacuum chamber is evacuated. Deformation occurs under pressure, so that the melted sealant fills the gap formed by the cover plate and the display panel on the side of the sealant close to the cavity.
  • ultraviolet rays are used to irradiate the cover plate and the display panel, so that the melted sealant is solidified.
  • the infrared emitting tubes and the infrared receiving tubes arranged in a one-to-one correspondence are arranged on opposite sides of the cover plate, and are located on the opposite sides of the cover plate.
  • the infrared emitting tube is used for emitting infrared rays
  • the infrared receiving tube is used for receiving the infrared rays emitted by the infrared emitting tube
  • multiple groups of the infrared emitting tubes and the infrared receiving tubes form a horizontally and vertically crossing infrared matrix Calculate the coordinate position of the touch point of the cover plate based on the data of the part of the infrared rays that are blocked by the operator's finger touching the cover plate measured by the combination of the infrared emitting tube and the infrared receiving tube.
  • This application also provides an infrared touch display device, including:
  • the cover plate is arranged on the display panel
  • the infrared touch component is arranged on the cover plate, and the infrared touch component includes a plurality of groups of infrared emitting tubes and infrared receiving tubes which are located on the periphery of the cover plate and arranged in one-to-one correspondence;
  • peripheral edges of the display panel and the peripheral edges of the cover plate are bonded by frame glue
  • the part of the cover plate corresponding to the middle area enclosed by the frame glue is closely attached to the display panel.
  • the part of the cover plate corresponding to the middle area enclosed by the frame glue is recessed toward one side of the display panel and closely adheres to the display panel.
  • the infrared emitting tube and the infrared receiving tube are respectively arranged on opposite sides of the cover plate and located in a non-recessed area of the cover plate, and the infrared emitting tube is used for Transmit infrared
  • the infrared receiving tube is used to receive the infrared emitted by the infrared emitting tube
  • a plurality of groups of the infrared emitting tube and the infrared receiving tube form a horizontally and vertically crossed infrared matrix
  • the infrared emitting tube and the infrared The combination of the receiving tube is used to measure the data of part of the infrared rays blocked by the operator's finger touching the cover, wherein the data corresponds to the coordinate position of the touch point on the cover.
  • the surface of the cover plate close to the infrared touch member is a horizontal plane, and the thickness of the middle area portion of the cover plate is greater than the thickness of the peripheral edge area.
  • an infrared touch display device including:
  • the cover plate is arranged on the display panel
  • the infrared touch component is arranged on the cover plate, and the infrared touch component includes a plurality of groups of infrared emitting tubes and infrared receiving tubes which are located on the periphery of the cover plate and arranged in one-to-one correspondence;
  • peripheral edges of the display panel and the peripheral edges of the cover plate are bonded by frame glue
  • the part of the cover plate corresponding to the middle area enclosed by the frame glue is tightly attached to the display panel, and the frame glue fills the gap formed by the cover plate and the display panel to secure the cover The board is fixed on the display panel.
  • the part of the cover plate corresponding to the middle area enclosed by the frame glue is recessed toward one side of the display panel and closely adheres to the display panel.
  • the infrared emitting tube and the infrared receiving tube are respectively arranged on opposite sides of the cover plate and located in a non-recessed area of the cover plate, and the infrared emitting tube is used for Transmit infrared
  • the infrared receiving tube is used to receive the infrared emitted by the infrared emitting tube
  • a plurality of groups of the infrared emitting tube and the infrared receiving tube form a horizontally and vertically crossed infrared matrix
  • the infrared emitting tube and the infrared The combination of the receiving tube is used to measure the data of part of the infrared rays blocked by the operator's finger touching the cover, wherein the data corresponds to the coordinate position of the touch point on the cover.
  • the surface of the cover plate close to the infrared touch member is a horizontal plane, and the thickness of the middle area portion of the cover plate is greater than the thickness of the peripheral edge area.
  • the beneficial effects of the present application are: the infrared touch display device and the preparation method thereof provided in the present application are bonded to the cover plate and the display panel by frame stickers in a vacuum environment, and the cover plate corresponds to the middle area enclosed by the frame glue In a vacuumed environment, part is subjected to pressure toward the display panel, so that the cover is recessed toward the display panel and closely adheres to the display panel, thereby eliminating the sense of space between the cover and the display panel and enhancing the user experience;
  • this method enables the cover plate and the display panel to be fully bonded, and enhances the waterproof and dustproof effect of the display device in the frame glue;
  • the infrared touch component is arranged in the non-recessed area of the cover plate, because the middle area of the cover plate is formed It is recessed, so as to avoid the problem that when the infrared touch is prepared on the surface of the cover, the convex of the cover blocks the signal transmission.
  • FIG. 1 is a schematic diagram of the structure of an infrared touch display device in the prior art
  • FIG. 2 is a flow chart of a manufacturing method of an infrared touch display device provided by an embodiment of the application
  • 3 to 8 are schematic diagrams of the preparation process of the infrared touch display device provided by the embodiments of the application.
  • FIG. 9 is a schematic structural diagram of an infrared touch display device provided by an embodiment of the application.
  • FIG. 10 is a top view of the infrared touch display device in FIG. 9;
  • FIG. 11 is a schematic structural diagram of another infrared touch display device provided by an embodiment of the application.
  • FIG. 1 is a schematic structural diagram of an infrared touch display device in the prior art.
  • the infrared touch display device includes a display panel 10, a cover plate 12 located above the display panel 10, a glue 11 located between the display panel 10 and the cover plate 12, and a cover plate 12 The infrared touch component 13 on the peripheral edge.
  • the glue 11 is used for bonding the display panel 10 and the cover 11.
  • This application addresses the problem of poor waterproof and dustproof effects of the existing infrared touch display device when the cover is attached, the display device has a sense of air-space, resulting in poor experience, and technical problems such as affecting infrared touch performance. Examples can solve this defect.
  • FIG. 2 it is a flowchart of a manufacturing method of an infrared touch display device provided by an embodiment of the application. Specifically, an LCD display panel is taken as an example for description, but not limited to this. As shown in FIGS. 3 to 8, the method includes the following steps:
  • step S10 as shown in FIG. 3, a sealant 22 is coated on the peripheral edge of the display panel 20 or the cover 21.
  • the sealant 22 is coated on the peripheral edge of the surface of the cover 21 facing the display panel 20, and the coating position of the sealant 22 corresponds to the periphery of the display area 201 of the display panel 20 Non-display area.
  • the frame glue 22 may be liquid glue or solid glue, which is not limited here.
  • the sealant 22 may also be prepared in the non-display area on the peripheral edge of the display panel 20.
  • Step S20 as shown in FIG. 4, the cover plate 21 and the display panel 20 are sent into the vacuum chamber 30, and the vacuum chamber 30 is evacuated by the vacuum pump 301 in a sealed environment.
  • Step S30 as shown in FIGS. 5-7, the cover plate 21 is aligned and attached to the display panel 20.
  • the cover plate 21 corresponds to the middle area enclosed by the sealant 22
  • the part 210 is recessed toward one side of the display panel 20 and is closely attached to the display panel 20.
  • the peripheral edge of the display panel 20 and the peripheral edge of the cover 21 are sealed by the sealant 22.
  • the step S30 specifically includes the following steps:
  • the vacuum pump 301 urges the cover 21, the display panel 20, and the display panel 20 through the gap between the sealant 22 and the display panel 20.
  • the cavity 23 enclosed by the sealant 22 is evacuated, so that the cover plate 21 is pressed toward the display panel 20, so that the part of the cover plate 21 corresponding to the middle region 210 faces the display panel.
  • One side of the panel 20 is recessed, that is, the part of the cover 21 corresponding to the middle region 210 is slightly deformed toward the side of the display panel 20.
  • the cover plate 21 continues to be attached to the display panel 20. As shown in FIG. 6, the part of the cover plate 21 corresponding to the middle region 210 is close to the part of the display panel 20 corresponding to the middle region 210. The peripheral edge of the display panel 20 and the peripheral edge of the cover plate 21 are adhered by the sealant 22. Due to the height difference caused by the frame glue 22, the position where the cover plate 21 and the display panel 20 are bonded by the frame glue 22 is the position where the cover plate 21 and the display panel 20 are directly bonded. There is a gap 230 between them, so the following operations are required:
  • a heating device 302 in the vacuum chamber 30 is used to heat the display panel 20 and the cover 21, so that the sealant 22 is melted, and the sealant 22 is pumped in the vacuum chamber 30
  • the deformation occurs under the pressure of the vacuum, so that the melted sealant 22 fills the gap 230 formed by the cover plate 21 and the display panel 20 on the side of the sealant 22 close to the cavity 23, as shown in FIG. As shown in 7.
  • ultraviolet rays are used to irradiate the cover 21 and the display panel 20 so that the melted sealant 22 is solidified, and the sealing of the cover 21 and the display panel 20 is completed.
  • the vacuum bonding method is used to achieve full bonding of the cover plate and the display panel, thereby eliminating the sense of space between the cover plate and the display panel and enhancing user experience; in addition, this method makes There is no air layer between the cover plate and the display panel, thereby achieving a good waterproof and dustproof effect.
  • this method is compared with the problems of high cost and complex bonding process caused by the traditional full-surface adhesive method. This application only needs to use a circle of adhesive material around, which has low cost, simple process and high yield. , And does not affect the advantages of display effects.
  • Step S40 as shown in FIG. 8, an infrared touch component 24 is arranged around the cover 21, and the infrared touch component 24 includes multiple sets of infrared emitting tubes 240 and infrared receiving tubes 241 arranged in a one-to-one correspondence.
  • the infrared emitting tubes 240 and the infrared receiving tubes 241 arranged in a one-to-one correspondence are respectively arranged on opposite sides of the cover plate 21, and located on the non-limiting side of the cover plate 21.
  • Recessed area that is, outside the middle area 210).
  • the infrared emitting tube 240 is used for emitting infrared rays
  • the infrared receiving tube 241 is used for receiving the infrared rays emitted by the infrared emitting tube 240
  • multiple sets of the infrared emitting tubes 240 and the infrared receiving tubes 241 form a horizontal and vertical cross
  • the operator’s finger touches the cover 21 and the part of the infrared is blocked to calculate the The coordinate position of the touch point to realize the touch function.
  • the infrared touch member 24 is disposed in the non-recessed area of the cover plate 21, since the middle area 210 of the cover plate 21 is recessed, it can avoid being placed on the infrared touch member 24 When prepared on the surface of the cover 21, due to the influence of gravity of the infrared touch member 24 and the instability of the cavity, the cover 21 corresponding to the middle region 210 is partially convex (microscopic Deformation) blocking signal transmission. Therefore, this embodiment improves the stability of infrared touch.
  • the present application also provides an infrared touch display device prepared by the above method.
  • the infrared touch display device includes but is not limited to a backlight unit 25, and a display panel 20 located on the backlight unit 25 , The cover 21 on the display panel 20, and the infrared touch member 24 on the cover 21.
  • the peripheral edge of the display panel 20 and the peripheral edge of the cover plate 21 are attached to each other by the frame glue 22; the cover plate 21 corresponds to the part of the middle area 210 enclosed by the frame glue 22 and the display panel 20 closely fits, and the projection range of the middle area 210 on the display panel 20 covers the display area 201 of the display panel 20.
  • the portion of the cover plate 21 corresponding to the middle region 210 enclosed by the sealant 22 is recessed toward the display panel 20 and closely adheres to the display panel 20.
  • the sealant 22 fills the gap formed by the cover 21 and the display panel 20 to fix the cover 21 on the display panel 20.
  • This embodiment realizes the full bonding of the cover plate and the display panel, thereby eliminating the sense of space between the cover plate and the display panel, and enhancing the user experience; in addition, this method makes there is no air layer between the cover plate and the display panel , So as to play a good waterproof and dustproof effect.
  • the infrared touch member 24 includes a plurality of sets of infrared emitting tubes 240 and infrared receiving tubes 241 located on the periphery of the cover 21 and arranged in one-to-one correspondence.
  • the infrared emitting tube 240 and the infrared receiving tube 241 are respectively arranged on opposite sides of the cover plate 21 and located in the non-recessed area of the cover plate 21.
  • the tube 241 forms an infrared matrix that crosses vertically and horizontally.
  • the combination of the infrared emitting tube 240 and the infrared receiving tube 241 is used to measure the data of part of the infrared rays that are blocked by the operator’s finger touching the cover 21, wherein the The data corresponds to the coordinate position of the touch point on the cover 21, so as to realize the infrared touch function.
  • this embodiment improves the stability of infrared touch control. For details, please refer to the description in the foregoing embodiment, which will not be repeated here.
  • FIG. 11 it is a schematic structural diagram of another infrared touch display device provided by an embodiment of this application.
  • the difference of this embodiment is that after the cover 21 and the display panel 20 are attached to the infrared touch display device, the cover 21 is close to the infrared touch member 24
  • the surface of is a horizontal plane, and the thickness of the middle area 210 of the cover plate 21 is greater than the thickness of the peripheral edge area.
  • the cover 21 includes a body portion 211 and a raised portion 212.
  • the raised portion 212 is disposed on a side surface of the cover 21 facing the display panel 20 and corresponds to the middle area 210 of the cover 21.
  • the sealant 22 is disposed on the periphery of the protrusion 212, and the thickness of the sealant 22 is greater than or equal to the thickness of the protrusion 212.
  • the thickness of the sealant 22 is slightly greater than the thickness of the protrusion 212, when the cover 21 and the display panel 20 are about to During bonding, in a vacuum environment, the cover plate 21 is pressed toward the display panel 20, so that the cover plate 21 is bonded to the display panel 20 through the sealant 22. At the same time, the vacuum chamber The heating device inside heats the cover plate 21 and the display panel 20, so that the sealant 22 is melted, and in a vacuumed environment, the raised portion 212 of the cover plate 21 and the display panel When the panel 20 is in contact, the melted sealant 22 fills the gap formed by the cover 21 and the display panel 20, so that the cover 21 and the display panel 20 are fully attached.
  • the surface of the convex portion 212 on the side close to the sealant 22 is a curved surface, and the molten sealant 22 fills the gap between the curved surface and the display panel 20. Crevice.
  • the cover plate 21 can fill the cavity between the cover plate and the display panel in the traditional structure without being deformed, thereby realizing the cover plate and the display panel.
  • the full fit of the display panel eliminates the sense of space between the cover and the display panel and enhances the user experience.
  • this method makes there is no air layer between the cover and the display panel, thus providing a good waterproof Dust effect.
  • the surface close to the infrared touch member 24 is flat, which will not affect the touch performance of the infrared touch member 24.

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Abstract

本申请提供一种红外触控显示装置及其制备方法，本申请将涂布有框胶的盖板与显示面板送进真空腔并抽真空处理；盖板与显示面板贴合时，盖板对应框胶围成的中部区域的部分向显示面板一侧凹陷，并与显示面板紧密贴合，显示面板的四周边缘与盖板的四周边缘通过框胶密封；在盖板四周一一对应设置有多组红外发射管与红外接收管。

Description

一种红外触控显示装置及其制备方法 技术领域
本申请涉及显示技术领域，尤其涉及一种红外触控显示装置及其制备方法。
 背景技术
在显示领域，红外触摸凭借成熟的技术，准确的触摸精度，以及相对来说成本的优势，目前占领着触摸的很大一部分市场。红外的触摸就是通过阻挡红外框发射的红外线进行定位来分析触摸位置的。显示面板与玻璃盖板二者之间的结合一般是利用面贴技术(Direct Bonding)或者框贴技术(Air Bonding)为主要的贴合技术。其中，通过框贴技术贴合的触控显示设备相较于通过面贴技术贴合的触控显示设备，成本更低。但是，由于采用框贴技术会使盖板的中部区域与显示面板的中部区域之间形成空腔，仅依靠框胶实现密封，存在防水防尘效果差以及隔空感的问题，造成体验感较差；另外，红外触控在贴近盖板的表面时，由于空腔的稳定性差，导致盖板外凸阻挡信号传输的问题。
因此，现有技术存在缺陷，急需改进。
 技术问题
本申请提供一种红外触控显示装置及其制备方法，能够解决现有红外触控显示装置在贴合盖板时存在的防水防尘效果差的问题，显示装置存在隔空感导致体验感较差，以及影响红外触控性能等问题。
 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：
本申请提供一种红外触控显示装置的制备方法，所述方法包括以下步骤：
步骤S10，在显示面板或盖板的四周边缘涂布框胶；
步骤S20，将所述盖板、所述显示面板送进真空腔，在密封环境下，利用真空泵将所述真空腔抽真空；
步骤S30，将所述盖板与所述显示面板对位贴合，在真空环境下，所述盖板对应所述框胶围成的中部区域的部分向所述显示面板一侧凹陷，并与所述显示面板紧密贴合，所述显示面板的四周边缘与所述盖板的四周边缘通过所述框胶密封；
步骤S40，在所述盖板四周设置红外触控构件，所述红外触控构件包括一一对应设置的多组红外发射管与红外接收管。
在本申请的制备方法中，所述步骤S30具体包括以下步骤：
在所述盖板与所述显示面板即将贴合时，所述真空泵通过所述框胶与所述盖板/所述显示面板之间的缝隙对所述盖板、所述显示面板以及所述框胶围成的空腔进行抽真空，使得所述盖板受到朝向所述显示面板的压力，以使所述盖板对应所述中部区域的部分向所述显示面板一侧凹陷并与所述显示面板紧密贴合。
在本申请的制备方法中，在真空环境下，利用所述真空腔内的一加热装置加热所述显示面板及所述盖板，使得所述框胶熔化，并在所述真空腔抽真空的压力下发生形变，使得熔化的所述框胶填充满所述框胶靠近所述空腔一侧所述盖板与所述显示面板形成的空隙。
在本申请的制备方法中，采用紫外线照射所述盖板及所述显示面板，使得熔化后的所述框胶被固化。
在本申请的制备方法中，在所述步骤S40中，将一一对应设置的所述红外发射管与所述红外接收管分别设置于所述盖板相对两侧，且位于所述盖板的非凹陷区域，所述红外发射管用于发射红外线，所述红外接收管用于接收所述红外发射管发射的所述红外线，多组所述红外发射管与所述红外接收管形成横竖交叉的红外线矩阵，基于所述红外发射管与所述红外接收管的组合测量的因操作员的手指触摸所述盖板而遮挡的部分红外线的数据计算针对所述盖板的触摸点的坐标位置。
本申请还提供一种红外触控显示装置，包括：
显示面板；
盖板，设置于所述显示面板之上；
红外触控构件，设置于所述盖板之上，所述红外触控构件包括位于所述盖板四周边缘且一一对应设置的多组红外发射管与红外接收管；
所述显示面板的四周边缘与所述盖板的四周边缘通过框胶贴合；
其中，所述盖板对应所述框胶围成的中部区域的部分与所述显示面板紧密贴合。
在本申请的红外触控显示装置中，所述盖板对应所述框胶围成的中部区域的部分向所述显示面板一侧凹陷，并与所述显示面板紧密贴合。
在本申请的红外触控显示装置中，所述红外发射管与所述红外接收管分别设置于所述盖板相对两侧，且位于所述盖板的非凹陷区域，所述红外发射管用于发射红外线，所述红外接收管用于接收所述红外发射管发射的所述红外线，多组所述红外发射管与所述红外接收管形成横竖交叉的红外线矩阵，所述红外发射管与所述红外接收管的组合用于测量因操作员的手指触摸所述盖板而遮挡的部分红外线的数据，其中，所述数据与针对所述盖板的触摸点的坐标位置对应。
在本申请的红外触控显示装置中，所述盖板靠近所述红外触控构件的表面为水平面，所述盖板的中间区域部分的厚度大于四周边缘区域的厚度。
为解决上述技术问题，本申请还提供一种红外触控显示装置，包括：
显示面板；
盖板，设置于所述显示面板之上；
红外触控构件，设置于所述盖板之上，所述红外触控构件包括位于所述盖板四周边缘且一一对应设置的多组红外发射管与红外接收管；
所述显示面板的四周边缘与所述盖板的四周边缘通过框胶贴合；
其中，所述盖板对应所述框胶围成的中部区域的部分与所述显示面板紧密贴合，所述框胶充满所述盖板与所述显示面板形成的空隙，以将所述盖板固定于所述显示面板上。
在本申请的红外触控显示装置中，所述盖板对应所述框胶围成的中部区域的部分向所述显示面板一侧凹陷，并与所述显示面板紧密贴合。
在本申请的红外触控显示装置中，所述红外发射管与所述红外接收管分别设置于所述盖板相对两侧，且位于所述盖板的非凹陷区域，所述红外发射管用于发射红外线，所述红外接收管用于接收所述红外发射管发射的所述红外线，多组所述红外发射管与所述红外接收管形成横竖交叉的红外线矩阵，所述红外发射管与所述红外接收管的组合用于测量因操作员的手指触摸所述盖板而遮挡的部分红外线的数据，其中，所述数据与针对所述盖板的触摸点的坐标位置对应。
在本申请的红外触控显示装置中，所述盖板靠近所述红外触控构件的表面为水平面，所述盖板的中间区域部分的厚度大于四周边缘区域的厚度。
 有益效果
本申请的有益效果为：本申请提供的红外触控显示装置及其制备方法，通过在真空环境下采用框贴的方式贴合盖板与显示面板，盖板对应框胶围成的中部区域的部分在抽真空的环境下受到朝向显示面板一侧的压力，使得盖板向显示面板一侧凹陷并与显示面板紧密贴合，从而消除盖板与显示面板的隔空感，增强用户体验度；另外，此方式使得盖板与显示面板能够全面贴合，增强了框胶内显示器件的防水防尘效果；此外，红外触控构件设置于盖板的非凹陷区域，由于盖板的中部区域形成凹陷，因此避免红外触控制备于盖板表面时，导致盖板外凸阻挡信号传输的问题。
 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为现有技术中的红外触控显示装置的结构示意图；
图2为本申请实施例提供的红外触控显示装置的制备方法流程图；
图3~图8为本申请实施例提供的红外触控显示装置的制备流程示意图；
图9为本申请实施例提供的一种红外触控显示装置的结构示意图；
图10为图9中红外触控显示装置的俯视图；
图11为本申请实施例提供的另一种红外触控显示装置的结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
首先对现有技术进行简要说明。参见图1，图1为现有技术中的红外触控显示装置的结构示意图。所述红外触控显示装置包括显示面板10，位于所述显示面板10上方的盖板12，位于所述显示面板10和所述盖板12之间的胶体11，以及位于所述盖板12上的四周边缘的红外触控构件13。所述胶体11用于贴合所述显示面板10和所述盖板11。但是使用这种粘合方式固定的显示面板10和盖板12之间存在空腔14（空气层），会使显示装置存在隔空感，不仅影响用户体验感以及显示效果，而且由于所述空腔14的存在，导致所述胶体11内的显示器件的防尘防水效果差等问题。
本申请针对现有红外触控显示装置在贴合盖板时存在的防水防尘效果差的问题，显示装置存在隔空感导致体验感较差，以及影响红外触控性能等技术问题，本实施例能够解决该缺陷。
如图2所示，为本申请实施例提供的红外触控显示装置的制备方法流程图。具体以LCD显示面板为例进行说明，但不以此为限，再结合图3~图8所示，所述方法包括以下步骤：
步骤S10，如图3所示，在显示面板20或盖板21的四周边缘涂布框胶22。
具体地，在所述盖板21面向所述显示面板20一侧表面的四周边缘涂布所述框胶22，所述框胶22的涂布位置对应所述显示面板20的显示区域201外围的非显示区域。所述框胶22可以是液态胶，也可以是固态胶，此处不做限制。
在其他实施例中，也可以选择在所述显示面板20的四周边缘的所述非显示区域制备所述框胶22。
步骤S20，如图4所示，将所述盖板21、所述显示面板20送进真空腔30内，在密封环境下，利用真空泵301将所述真空腔30进行抽真空处理。
步骤S30，如图5~图7所示，将所述盖板21与所述显示面板20对位贴合，在真空环境下，所述盖板21对应所述框胶22围成的中部区域210的部分向所述显示面板20一侧凹陷，并与所述显示面板20紧密贴合，所述显示面板20的四周边缘与所述盖板21的四周边缘通过所述框胶22密封。
具体地，如图5所示，所述步骤S30具体包括以下步骤：
在所述盖板21与所述显示面板20即将贴合时，所述真空泵301通过所述框胶22与所述显示面板20之间的缝隙对所述盖板21、所述显示面板20以及所述框胶22围成的空腔23进行抽真空，使得所述盖板21受到朝向所述显示面板20的压力，以使所述盖板21对应所述中部区域210的部分向所述显示面板20一侧凹陷，即所述盖板21对应所述中部区域210的部分向所述显示面板20一侧发生微形变。
所述盖板21与所述显示面板20继续进行贴合，如图6所示，所述盖板21对应所述中部区域210的部分与所述显示面板20对应所述中部区域210的部分紧密贴合，且所述显示面板20的四周边缘与所述盖板21的四周边缘通过所述框胶22贴合。由于所述框胶22造成的高度差，使得所述盖板21与所述显示面板20通过所述框胶22贴合的位置与所述盖板21与所述显示面板20直接贴合的位置之间存在空隙230，因此需要以下操作：
在真空环境下，利用所述真空腔30内的一加热装置302加热所述显示面板20及所述盖板21，使得所述框胶22熔化，所述框胶22在所述真空腔30抽真空的压力下发生形变，使得熔化的所述框胶22填充满所述框胶22靠近所述空腔23一侧所述盖板21与所述显示面板20形成的所述空隙230，如图7中所示。
之后，采用紫外线照射所述盖板21及所述显示面板20，使得熔化后的所述框胶22被固化，完成对所述盖板21与所述显示面板20的密封。
在本实施例中，利用抽真空贴合的方式，实现了盖板与显示面板的全面贴合，从而消除盖板与显示面板之间的隔空感，增强用户体验度；另外，此方式使得盖板与显示面板之间不存在空气层，从而起到良好的防水防尘效果。并且此方式相较于采用传统整面胶材的全面贴合方法造成的成本高、贴合工艺复杂的问题，本申请只需在周边采用一圈胶材，具有成本低，工艺简单良率高、且不影响显示效果等优势。
步骤S40，如图8所示，在所述盖板21四周设置红外触控构件24，所述红外触控构件24包括一一对应设置的多组红外发射管240与红外接收管241。
具体地，在所述步骤S40中，将一一对应设置的所述红外发射管240与所述红外接收管241分别设置于所述盖板21相对两侧，且位于所述盖板21的非凹陷区域（即所述中部区域210之外）。所述红外发射管240用于发射红外线，所述红外接收管241用于接收所述红外发射管240发射的所述红外线，多组所述红外发射管240与所述红外接收管241形成横竖交叉的红外线矩阵，根据所述红外发射管240与所述红外接收管241的组合测量的因操作员的手指触摸所述盖板21而遮挡的部分红外线的数据，来计算针对所述盖板21的触摸点的坐标位置，从而实现触控功能。
在本实施例中，由于所述红外触控构件24设置于所述盖板21的非凹陷区域，由于所述盖板21的中部区域210形成凹陷，因此可以避免在所述红外触控构件24制备于所述盖板21表面时，由于所述红外触控构件24的重力影响以及所述空腔的不稳定性，导致所述盖板21对应所述中部区域210的部分外凸（发生微形变）阻挡信号传输的问题，因此，本实施例提高了红外触控的稳定性。
本申请还提供一种采用上述方法制备的红外触控显示装置，如图9所示，所述红外触控显示装置包括但不限于：背光单元25，位于所述背光单元25上的显示面板20，位于所述显示面板20上的盖板21，以及位于所述盖板21上的红外触控构件24。其中，所述显示面板20的四周边缘与所述盖板21的四周边缘通过框胶22贴合；所述盖板21对应所述框胶22围成的中部区域210的部分与所述显示面板20紧密贴合，并且，所述中部区域210在所述显示面板20上的投影范围覆盖所述显示面板20的显示区域201。
在抽真空的环境下，所述盖板21对应所述框胶22围成的所述中部区域210的部分向所述显示面板20一侧凹陷，并与所述显示面板20紧密贴合。所述框胶22充满所述盖板21与所述显示面板20形成的空隙，以将所述盖板21固定于所述显示面板20上。
本实施例实现了盖板与显示面板的全面贴合，从而消除盖板与显示面板之间的隔空感，增强用户体验度；另外，此方式使得盖板与显示面板之间不存在空气层，从而起到良好的防水防尘效果。
其中，如图10所示，所述红外触控构件24包括位于所述盖板21四周边缘且一一对应设置的多组红外发射管240与红外接收管241。所述红外发射管240与所述红外接收管241分别设置于所述盖板21相对两侧，且位于所述盖板21的非凹陷区域，多组所述红外发射管240与所述红外接收管241形成横竖交叉的红外线矩阵，所述红外发射管240与所述红外接收管241的组合用于测量因操作员的手指触摸所述盖板21而遮挡的部分红外线的数据，其中，所述数据与针对所述盖板21的触摸点的坐标位置对应，从而实现红外触控功能。另外，本实施例提高了红外触控的稳定性，具体请参照上述实施例中的描述，此处不再赘述。
如图11所示，为本申请实施例提供的另一种红外触控显示装置的结构示意图。相较于图9中的红外触控显示装置，本实施例的区别在于：红外触控显示装置在盖板21与显示面板20贴合后，所述盖板21靠近所述红外触控构件24的表面为水平面，所述盖板21的中间区域210部分的厚度大于四周边缘区域的厚度。
所述盖板21包括本体部211和凸起部212，所述凸起部212设置于所述盖板21面向所述显示面板20的一侧表面，且对应所述盖板21的中部区域210设置。所述框胶22设置于所述凸起部212的外围，所述框胶22的厚度大于或等于所述凸起部212的厚度。
在一种实施例中，为保证所述框胶22良好的密封性能，所述框胶22的厚度略大于所述凸起部212的厚度，当所述盖板21与所述显示面板20即将贴合时，在真空环境下，所述盖板21受到朝向所述显示面板20方向的压力，使得盖板21通过所述框胶22与所述显示面板20贴合，与此同时，真空腔内的加热装置对所述盖板21以及所述显示面板20进行加热处理，使得所述框胶22熔化，在抽真空的环境下，使得所述盖板21的凸起部212与所述显示面板20接触，熔化的所述框胶22充满所述盖板21与所述显示面板20形成的空隙，从而实现所述盖板21与所述显示面板20的全面贴合。
在另一种实施例中，所述凸起部212靠近所述框胶22一侧的表面为弧面，熔化的所述框胶22填充满所述弧面与所述显示面板20之间的缝隙处。
本实施例通过改变所述盖板21的结构设计，使得所述盖板21在不变形的情况下填充传统结构中所述盖板与所述显示面板之间的空腔，从而实现盖板与显示面板的全面贴合，从而消除盖板与显示面板之间的隔空感，增强用户体验度；另外，此方式使得盖板与显示面板之间不存在空气层，从而起到良好的防水防尘效果。而且，靠近所述红外触控构件24的表面平整，不会对所述红外触控构件24的触控性能造成影响。
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 (13)

  1. 一种红外触控显示装置的制备方法，其中，所述方法包括以下步骤：
    步骤S10，在显示面板或盖板的四周边缘涂布框胶；
    步骤S20，将所述盖板、所述显示面板送进真空腔，在密封环境下，利用真空泵将所述真空腔抽真空；
    步骤S30，将所述盖板与所述显示面板对位贴合，在真空环境下，所述盖板对应所述框胶围成的中部区域的部分向所述显示面板一侧凹陷，并与所述显示面板紧密贴合，所述显示面板的四周边缘与所述盖板的四周边缘通过所述框胶密封；
    步骤S40，在所述盖板四周设置红外触控构件，所述红外触控构件包括一一对应设置的多组红外发射管与红外接收管。
  2. 根据权利要求1所述的制备方法，其中，所述步骤S30具体包括以下步骤：
    在所述盖板与所述显示面板即将贴合时，所述真空泵通过所述框胶与所述盖板/所述显示面板之间的缝隙对所述盖板、所述显示面板以及所述框胶围成的空腔进行抽真空，使得所述盖板受到朝向所述显示面板的压力，以使所述盖板对应所述中部区域的部分向所述显示面板一侧凹陷并与所述显示面板紧密贴合。
  3. 根据权利要求2所述的制备方法，其中，在真空环境下，利用所述真空腔内的一加热装置加热所述显示面板及所述盖板，使得所述框胶熔化，并在所述真空腔抽真空的压力下发生形变，使得熔化的所述框胶填充满所述框胶靠近所述空腔一侧所述盖板与所述显示面板形成的空隙。
  4. 根据权利要求3所述的制备方法，其中，采用紫外线照射所述盖板及所述显示面板，使得熔化后的所述框胶被固化。
  5. 根据权利要求1所述的制备方法，其中，在所述步骤S40中，将一一对应设置的所述红外发射管与所述红外接收管分别设置于所述盖板相对两侧，且位于所述盖板的非凹陷区域，所述红外发射管用于发射红外线，所述红外接收管用于接收所述红外发射管发射的所述红外线，多组所述红外发射管与所述红外接收管形成横竖交叉的红外线矩阵，基于所述红外发射管与所述红外接收管的组合测量的因操作员的手指触摸所述盖板而遮挡的部分红外线的数据计算针对所述盖板的触摸点的坐标位置。
  6. 一种红外触控显示装置，其包括：
    显示面板；
    盖板，设置于所述显示面板之上；
    红外触控构件，设置于所述盖板之上，所述红外触控构件包括位于所述盖板四周边缘且一一对应设置的多组红外发射管与红外接收管；
    所述显示面板的四周边缘与所述盖板的四周边缘通过框胶贴合；
    其中，所述盖板对应所述框胶围成的中部区域的部分与所述显示面板紧密贴合。
  7. 根据权利要求6所述的红外触控显示装置，其中，所述盖板对应所述框胶围成的中部区域的部分向所述显示面板一侧凹陷，并与所述显示面板紧密贴合。
  8. 根据权利要求7所述的红外触控显示装置，其中， 所述红外发射管与所述红外接收管分别设置于所述盖板相对两侧，且位于所述盖板的非凹陷区域，所述红外发射管用于发射红外线，所述红外接收管用于接收所述红外发射管发射的所述红外线，多组所述红外发射管与所述红外接收管形成横竖交叉的红外线矩阵，所述红外发射管与所述红外接收管的组合用于测量因操作员的手指触摸所述盖板而遮挡的部分红外线的数据，其中，所述数据与针对所述盖板的触摸点的坐标位置对应。
  9. 根据权利要求6所述的红外触控显示装置，其中，所述盖板靠近所述红外触控构件的表面为水平面，所述盖板的中间区域部分的厚度大于四周边缘区域的厚度。
  10. 一种红外触控显示装置，其包括：
    显示面板；
    盖板，设置于所述显示面板之上；
    红外触控构件，设置于所述盖板之上，所述红外触控构件包括位于所述盖板四周边缘且一一对应设置的多组红外发射管与红外接收管；
    所述显示面板的四周边缘与所述盖板的四周边缘通过框胶贴合；
    其中，所述盖板对应所述框胶围成的中部区域的部分与所述显示面板紧密贴合，所述框胶充满所述盖板与所述显示面板形成的空隙，以将所述盖板固定于所述显示面板上。
  11. 根据权利要求10所述的红外触控显示装置，其中，所述盖板对应所述框胶围成的中部区域的部分向所述显示面板一侧凹陷，并与所述显示面板紧密贴合。
  12. 根据权利要求11所述的红外触控显示装置，其中， 所述红外发射管与所述红外接收管分别设置于所述盖板相对两侧，且位于所述盖板的非凹陷区域，所述红外发射管用于发射红外线，所述红外接收管用于接收所述红外发射管发射的所述红外线，多组所述红外发射管与所述红外接收管形成横竖交叉的红外线矩阵，所述红外发射管与所述红外接收管的组合用于测量因操作员的手指触摸所述盖板而遮挡的部分红外线的数据，其中，所述数据与针对所述盖板的触摸点的坐标位置对应。
  13. 根据权利要求10所述的红外触控显示装置，其中，所述盖板靠近所述红外触控构件的表面为水平面，所述盖板的中间区域部分的厚度大于四周边缘区域的厚度。
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