WO2017012308A1 - 触摸显示屏、触摸显示屏的制备方法和贴合胶治具 - Google Patents

触摸显示屏、触摸显示屏的制备方法和贴合胶治具 Download PDF

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Publication number
WO2017012308A1
WO2017012308A1 PCT/CN2016/070986 CN2016070986W WO2017012308A1 WO 2017012308 A1 WO2017012308 A1 WO 2017012308A1 CN 2016070986 W CN2016070986 W CN 2016070986W WO 2017012308 A1 WO2017012308 A1 WO 2017012308A1
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WO
WIPO (PCT)
Prior art keywords
bonding
adhesive
touch
display panel
touch panel
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PCT/CN2016/070986
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English (en)
French (fr)
Inventor
胡明
刘国冬
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority to US15/107,707 priority Critical patent/US20170010630A1/en
Priority claimed from CN201510437830.5A external-priority patent/CN105183209B/zh
Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2016/070986 priority patent/WO2017012308A1/zh
Priority to EP16728820.8A priority patent/EP3327553A4/en
Publication of WO2017012308A1 publication Critical patent/WO2017012308A1/zh

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    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • 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

  • the present invention relates to the field of display technologies, and in particular, to a touch display screen, a method for preparing the touch display screen, and a bonding glue fixture.
  • Touch displays are increasingly being used in devices such as cell phones, displays, laptops, and televisions.
  • the touch screen of a notebook computer has a larger area than the touch screen display of several other display devices, and needs to be frequently opened and closed. During the opening and closing process, the touch screen will be distorted to some extent. Therefore, the touch display for laptops requires a Bending test.
  • the touch panel 1 and the display panel 2 of the conventional touch display panel adopt a full bonding process (in FIG. 1, the black area indicates the bonding glue 3) to obtain a better display effect.
  • the black area indicates the bonding glue 3
  • such products are prone to large-scale whitening when displaying black and gray images. This is because the stress generated when the touch display screen is bent cannot be effectively absorbed by the bonding glue 3, and the display panel 2 is bent to a large extent, as shown in FIG. Since the stress cannot be effectively absorbed by the bonding glue 3, the normal arrangement of the liquid crystal molecules in the touch screen is disordered, which causes light leakage and whitening.
  • a conventional solution to solve the above problems is to reduce the thickness of the display panel by reducing the thickness of the glass substrate by thinning the glass substrate to be displayed, thereby improving the whitening phenomenon.
  • it is generally required to soak the glass substrate in HF and apply an etching process. This will increase production costs and reduce product yield.
  • the size of the glass substrate is large. Due to the size limitations of the etching equipment, the glass substrate must first be cut into smaller sizes to perform the etching process. This further increases the cutting process, which further leads to increased costs and reduced product yield.
  • the present invention aims to solve at least one of the technical problems existing in the prior art, and proposes a A touch display screen, a method of preparing a touch screen display, and a glue jig. According to the present invention, it is possible to improve the problem of whitening when the touch display screen in a curved state displays a black and gray screen without performing a thinning process.
  • a touch display screen for the purpose of the present invention, including a touch panel, a display panel, and a bonding assembly; the bonding assembly includes a first bonding unit disposed between the touch panel and the display panel, The first bonding unit is composed of a plurality of curing and bonding rubber columns; the upper and lower end faces of each of the curing bonding rubber columns are respectively used for the bonding surface with the touch panel and the display panel The faces are bonded.
  • the cured adhesive glue column is evenly distributed between the touch panel and the display panel.
  • each of the cured adhesive gel columns has a cylindrical shape.
  • each of the cured adhesive columns has a diameter of 3 to 5 mm and a height of 0.2 to 0.3 mm.
  • the projected area of the first bonding unit on the touch panel accounts for 40% to 60% of the area of the touch panel.
  • the bonding assembly further includes a second bonding unit disposed between the touch panel and the display panel; the second bonding unit is along an edge of the touch panel and the display panel And surrounding the first bonding unit; and the upper and lower end faces of the second bonding unit are respectively used for bonding with the bonding surface of the touch panel and the bonding surface of the display panel.
  • the second bonding unit has a width of 4 to 6 mm.
  • the present invention also provides a bonding glue jig for preparing a bonding glue, comprising: a body; and a plurality of adhesive glue injection portions disposed on the body; the plurality of adhesive injection portions The lengths are equal, and the length direction thereof is perpendicular to the body; each of the adhesive injection portions has a glue injection passage disposed along a longitudinal direction thereof, and the body is provided with the plurality of adhesive injection portions The adhesive glue injection passage is connected to a plurality of adhesive injection holes.
  • the cross section of the adhesive injection channel is circular.
  • the present invention also provides a method for preparing a touch display screen, including:
  • the step of forming a plurality of columnar pre-cured adhesives on the bonding surface of the touch panel or the display panel comprises:
  • the bonding glue fixture comprises a body and a plurality of adhesive glue injection portions disposed on the body, the plurality of The adhesive injection portions have the same length, and the longitudinal direction thereof is perpendicular to the body, and each of the adhesive injection portions has a glue injection passage disposed along a longitudinal direction thereof, and the body is provided with the plurality of a plurality of adhesive injection holes that are connected to the glue injection passage of the glue injection portion;
  • the adhesive gage is removed.
  • the method for preparing the touch display screen further includes:
  • a release agent is applied to the inner wall surface of the adhesive injection passage of the adhesive injection portion of the adhesive jig.
  • the method for preparing the touch display screen further includes:
  • a second pre-cured adhesive that surrounds the plurality of columnar pre-cured adhesives along edges of the touch panel and the display panel is formed on a bonding surface of the touch panel or the display panel.
  • the method for preparing the touch display screen further comprises: completely curing the second pre-curing adhesive to form the first The second bonding unit, wherein the upper and lower end faces of the second bonding unit are respectively bonded to the bonding surface of the touch panel and the bonding surface of the display panel.
  • the touch panel and the display panel are attached together by a plurality of curing adhesive glue posts of the first bonding unit.
  • the first bonding unit can absorb stress better than a fully fitted solution. In this way, stress can be transmitted to the display panel less when the touch display screen is bent, thereby reducing the extent to which the display panel is bent. In this case, the liquid crystal molecules in the display panel can be more likely to maintain a normal arrangement, thereby avoiding light leakage and improving whitening. At the same time, there is no need to thin the display panel.
  • a first bonding unit composed of a plurality of curing adhesive glue columns is prepared between the touch panel and the display panel; compared with the technical solution using the full bonding, the first sticker
  • the unit can absorb stress better. In this way, stress can be transmitted to the display panel less when the touch display screen is bent, thereby reducing the extent to which the display panel is bent. Therefore, the liquid crystal molecules in the display screen tend to maintain a normal arrangement, avoiding light leakage and improving whitening. At the same time, there is no need to thin the display.
  • the laminated adhesive jig provided by the invention can prepare a plurality of cured adhesive glue columns, and the first bonding unit composed of a plurality of cured adhesive glue columns can be applied on the touch display screen to display the touch panel and the display The panels are attached together.
  • the first bonding unit prepared by the bonding glue fixture provided by the invention can absorb stress better. In this way, stress can be transmitted to the display panel less when the touch display screen is bent, thereby reducing the extent to which the display panel is bent. Therefore, the liquid crystal molecules in the display panel can tend to maintain a normal arrangement, avoid light leakage, and improve whitening. At the same time, there is no need to thin the display.
  • FIG. 1 is a schematic diagram of an existing touch display screen using full-fitting technology
  • FIG. 2 is a schematic diagram of a state of the touch display screen shown in FIG. 1 in a Bending test
  • FIG. 3 is a schematic diagram of a touch display screen according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a state of the touch display screen shown in FIG. 3 in a Bending test
  • Figure 5 is a top plan view of the bonding assembly
  • Figure 6 is a top plan view of a glued fixture
  • Fig. 7 is a schematic cross-sectional view showing the bonding glue shown in Fig. 6.
  • the present invention provides an embodiment of a touch display screen.
  • 3 is a schematic diagram of a touch display screen provided in accordance with an embodiment of the present invention.
  • the touch display screen includes a touch panel 1 , a display panel 2 , and a bonding component 3
  • the bonding component 3 includes a touch panel 1 and a display panel 2 .
  • the first bonding unit 31 is composed of a plurality of curing and bonding rubber columns; the upper and lower end faces of each of the curing bonding rubber columns are respectively used for the bonding surface with the touch panel 1 It is bonded to the bonding surface of the display panel 2.
  • the touch panel 1 and the display panel 2 are bonded by a plurality of cured bonding rubber posts of the first bonding unit 31.
  • the first bonding unit 31 can better absorb stress as compared with the full bonding method shown in FIG.
  • stress can be transmitted to the display panel 2 less, thereby reducing the degree to which the display panel 2 is bent, as shown in FIG.
  • the liquid crystal molecules in the display panel 2 are more likely to maintain a normal arrangement, thereby avoiding light leakage and improving whitening.
  • the first bonding unit 31 is disposed between the touch panel 1 and the display panel 2, the air in the effective display area between the touch panel 1 and the display panel 2 is provided.
  • the area occupied is small. In this way, a better display effect can be achieved than with a framed touch display.
  • the plurality of curing glue posts of the first bonding unit 31 are evenly distributed between the touch panel 1 and the display panel 2 .
  • This setting can make the touch panel 1 and the first sticker
  • the fit between the unit 31 and the display panel 2 and the first bonding unit 31 is more stable, thereby making the touch panel 1 and the display panel 2 more secure.
  • the cured adhesive rubber column of the first bonding unit 31 has a cylindrical shape.
  • the cured adhesive rubber column may have a diameter of 3 to 5 mm and a height of 0.2 to 0.3 mm.
  • the projected area of the first bonding unit 31 on the touch panel 1 accounts for 40% to 60% of the area of the touch panel 1 so that the first bonding unit 31 has a comparison. While the effect of absorbing stress is good, the touch panel 1 and the display panel 2 can be firmly bonded together and the area occupied by the air can be reduced. Therefore, a better display effect can be achieved.
  • the bonding assembly 3 may further include a second bonding unit 32 disposed between the touch panel 1 and the display panel 2,
  • the second bonding unit 32 surrounds the first bonding unit 31 along the edges of the touch panel 1 and the display panel 2 , and the upper and lower end faces of the second bonding unit 32 are respectively used for the touch panel 1
  • the bonding surface is bonded to the bonding surface of the display screen 2.
  • the second bonding unit 32 can increase the contact area of the bonding assembly 3 with the touch panel 1 and the display panel 2, thereby enhancing the bonding strength between the touch panel 1 and the display panel 2.
  • the second bonding unit 32 may have a width of 4 to 6 mm and a height equal to that of the first bonding unit 31 (ie, 0.2 to 0.3 mm).
  • the touch panel 1 and the display panel 2 are bonded together by a plurality of cured bonding rubber posts of the first bonding unit 31.
  • the first bonding unit 31 can better absorb stress as compared with the full bonding method shown in FIG. In this way, stress can be transmitted to the display panel 2 less when the touch display screen is bent, thereby reducing the extent to which the display panel 2 is bent. Therefore, the liquid crystal molecules in the display panel 2 can tend to maintain a normal arrangement, avoid light leakage, and improve whitening. At the same time, it is not necessary to thin the display panel 2.
  • the bonding glue fixture 4 includes a body 41 and a plurality of adhesive glue injection portions 42 disposed on the body;
  • the adhesive injection portion 42 has the same length and a longitudinal direction thereof perpendicular to the body 41;
  • Each of the adhesive injection portions 42 has a glue injection passage disposed along a longitudinal direction thereof, and the body 41 is provided with a plurality of stickers that communicate with the adhesive injection passages of the plurality of adhesive injection portions 42.
  • the glue is injected into the hole 43.
  • the cross section of the adhesive injection channel may be circular.
  • the laminated adhesive jig provided by the embodiment of the present invention can prepare a plurality of cured adhesive glue columns, and the first bonding unit composed of a plurality of cured adhesive glue columns can be applied on the touch display screen so as to touch the touch panel Fitted with the display panel.
  • the first bonding unit prepared by the bonding glue fixture provided by the invention can absorb stress better. In this way, stress can be transmitted to the display panel less when the touch display screen is bent, thereby reducing the extent to which the display panel is bent. Therefore, the liquid crystal molecules in the display panel can tend to maintain a normal arrangement, avoid light leakage, and improve whitening. At the same time, there is no need to thin the display panel.
  • the present invention also provides an embodiment of a method of preparing a touch display screen.
  • the method for preparing the touch display screen includes the steps of preparing a touch panel and a display panel.
  • the method for preparing the touch display screen further includes the following steps S1 to S3.
  • a touch panel and a display panel are separately prepared.
  • the manufacturing process of the touch panel and the display screen is known, and will not be described herein.
  • S2 forms a plurality of columnar pre-cured adhesives on the bonding surface of the touch panel 1 or the display panel 2.
  • the touch panel 1 or the display panel 2 is first placed on the bonding machine, and then a columnar pre-cured adhesive is formed on the touch panel 1 or the display panel 2.
  • the step S2 may include:
  • the adhesive jig includes a body and a plurality of adhesive injection portions disposed on the body; the plurality of adhesive injection portions are equal in length, and a longitudinal direction thereof is perpendicular to the body;
  • the adhesive injection portion has a glue injection passage provided along the longitudinal direction thereof, and the body is provided with a plurality of adhesive injection holes that communicate with the adhesive injection passages of the plurality of adhesive injection portions.
  • the bonding glue jig can be as shown in FIG. 6 and FIG. 7.
  • step S22 the bonding glue is poured into the bonding glue injection channel, and the surface of the bonding glue fixture is flattened by using a doctor blade, and will remain in The bonding glue in the adhesive injection channel is solidified into a column shape.
  • step S23 the adhesive jig is removed, and only the adhesive glue adhered to the touch panel 1 or the display panel 2, that is, the columnar pre-cured adhesive is retained.
  • the method for preparing the touch display screen may further include:
  • a release agent is coated on the inner wall surface of the adhesive injection passage of the adhesive injection portion of the adhesive jig.
  • step S22 the application of the release agent can facilitate easy separation between the cured adhesive and the adhesive jig. Therefore, in step S24, when the glued jig is removed, the columnar pre-cured adhesive is not removed.
  • step S3 the display panel 2 is bonded to the touch panel 1 on which the columnar pre-cured adhesive is formed, or the touch panel 1 is bonded to the display panel 2 on which the columnar pre-cured adhesive is formed; After the combination, the columnar pre-cured adhesive is completely cured, and the adhesive is fixedly bonded to the display panel 2 or fixedly bonded to the touch panel 1. That is, the touch panel 1 and the display panel 2 are firmly attached together by the first bonding unit 31.
  • the method for preparing the touch display screen may further include: forming a plurality of edges along the touch panel 1 and the display panel 2 on the bonding surface of the touch panel 1 or the display panel 2 A second pre-cured adhesive of a columnar pre-cured adhesive.
  • the second pre-cured adhesive may be formed simultaneously with the above-mentioned column pre-cured adhesive.
  • the same adhesive jig can be used to simultaneously form the column pre-cured adhesive and the second pre-cured adhesive in one process.
  • the step of preparing the second pre-cured adhesive by using the adhesive jig is similar to the step of preparing the column pre-cured adhesive by using the adhesive jig shown in FIG. 6, and details are not described herein again.
  • the second pre-cured adhesive may also be formed after the columnar pre-cured adhesive is formed.
  • the second bonding unit may be formed by using the same bonding glue jig; or the bonding glue may be directly applied on the touch panel 1 or the display panel 2 without using the bonding glue jig.
  • the adhesive is pre-cured into the second pre-cured adhesive.
  • the method for preparing the touch display screen may further include: completely curing the second pre-curing adhesive to form the first
  • the second bonding unit 32 is configured such that the upper and lower end faces of the second bonding unit 32 are bonded to the bonding surface of the touch panel 1 and the bonding surface of the display panel 2, respectively.
  • a first bonding unit 31 composed of a plurality of cured bonding rubber columns can be prepared between the touch panel 1 and the display panel 2, and the first bonding unit 31
  • the touch panel 1 is attached to the display panel 2; the first bonding unit 31 can absorb stress better than the fully-fitted solution. In this way, stress can be transmitted to the display panel 2 less when the touch display screen is bent, thereby reducing the extent to which the display panel 2 is bent. Therefore, the liquid crystal molecules in the display panel 2 can tend to maintain a normal arrangement, avoid light leakage, and improve whitening. At the same time, it is not necessary to thin the display panel 2.

Abstract

一种触摸显示屏、触摸显示屏的制备方法和贴合胶治具。触摸显示屏包括触摸面板（1）、显示面板（2）和贴合组件（3）。贴合组件（3）包括设置在触摸面板（1）与显示面板（2）之间的第一贴合单元（31），第一贴合单元（31）由多个固化贴合胶柱组成；每个固化贴合胶柱的上下两个端面分别用于与触摸面板（1）的贴合面和显示面板（2）的贴合面相粘结。可以在不对显示屏进行减薄的情况下，改善弯曲状态下的触摸显示屏显示黑灰画面时泛白的问题。

Description

触摸显示屏、触摸显示屏的制备方法和贴合胶治具 技术领域
本发明涉及显示技术领域，具体地，涉及一种触摸显示屏、触摸显示屏的制备方法和贴合胶治具。
背景技术
触摸显示屏正越来越广泛地应用于手机、显示器、笔记本电脑和电视等设备中。在这些设备中，笔记本电脑的触摸显示屏相比于其他几种显示设备的触摸显示屏具有更大的面积，而且需要经常开合和关闭。在开合和关闭过程中，触摸显示屏会发生一定程度的扭曲变形。因此，用于笔记本电脑的触摸显示屏需要进行Bending(弯曲)测试。
如图1所示，现有的触摸显示屏的触摸面板1和显示面板2之间采用全贴合工艺(在图1中，黑色区域表示贴合胶3)，以取得更好的显示效果。但这类产品在进行Bending测试中，显示黑灰画面时容易出现大面积泛白现象。这是由于触摸显示屏被弯曲时所产生的应力不能被贴合胶3有效吸收，使显示面板2发生较大幅度的弯曲，如图2所示。由于应力不能被贴合胶3有效吸收，触摸显示屏中的液晶分子的正常排布发生紊乱，这样就会导致漏光，出现泛白现象。
现有一种解决上述问题的技术方案是通过将显示的玻璃基板减薄，减薄后的玻璃基板会更好地吸收应力，减小显示面板的变形的幅度，从而改善泛白现象。但对于玻璃基板的减薄，一般需要在HF中浸泡玻璃基板并且应用刻蚀工艺。这样就会增加生产成本，降低产品良率。另外，对于高世代生产线而言，其玻璃基板的尺寸较大。由于受到刻蚀设备尺寸的限制，所以必须首先将玻璃基板切割为较小的尺寸才能进行刻蚀工艺。这样更进一步增加了一次切割工艺，从而会进一步导致成本增加，产品良率的降低。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一，提出了一 种触摸显示屏、触摸显示屏的制备方法和贴合胶治具。根据本发明，可以改善弯曲状态下的触摸显示屏显示黑灰画面时发白的问题，而无需进行减薄处理。
一方面，为实现本发明的目的而提供一种触摸显示屏，包括触摸面板、显示面板和贴合组件；所述贴合组件包括设置在触摸面板与显示面板之间的第一贴合单元，所述第一贴合单元由多个固化贴合胶柱组成；每个所述固化贴合胶柱的上下两个端面分别用于与所述触摸面板的贴合面和所述显示面板的贴合面相粘结。
优选的是，所述固化贴合胶柱在所述触摸面板与所述显示面板之间均匀分布。
优选的是，每个所述固化贴合胶柱呈圆柱状。
优选的是，每个所述固化贴合胶柱的直径为3～5mm，高度为0.2～0.3mm。
优选的是，所述第一贴合单元在所述触摸面板上的投影面积占所述触摸面板的面积的40％～60％。
优选的是，所述贴合组件还包括设置在所述触摸面板与所述显示面板之间的第二贴合单元；所述第二贴合单元沿所述触摸面板和所述显示面板的边缘包围所述第一贴合单元；并且第二贴合单元的上下两个端面分别用于与所述触摸面板的贴合面和所述显示面板的贴合面相粘结。
优选的是，所述第二贴合单元的宽度为4～6mm。
另一方面，本发明还提供一种用于制备贴合胶的贴合胶治具，包括本体和设置在所述本体上的多个贴合胶注入部；所述多个贴合胶注入部的长度相等，且其长度方向与所述本体垂直；每个贴合胶注入部具有沿其长度方向设置的贴合胶注入通道，所述本体上设有与所述多个贴合胶注入部的贴合胶注入通道连通的多个贴合胶注入孔。
优选的是，所述贴合胶注入通道的截面为圆形。
再一方面，本发明还提供一种触摸显示屏的制备方法，包括：
提供触摸面板和显示面板；
在触摸面板或显示面板的贴合面上形成多个柱状预固化贴合 胶；以及
将触摸面板的贴合面和显示面板的贴合面对准贴合，并且将所述柱状预固化贴合胶完全固化以形成由多个固化贴合胶柱组成的第一贴合单元，其中所述固化贴合胶柱的上下两个端面分别与所述触摸面板的贴合面和所述显示屏面板的合面相粘结。
优选的是，在触摸面板或显示面板的贴合面上形成多个柱状预固化贴合胶的步骤包括：
将贴合胶治具与触摸面板或显示面板的贴合面对准，其中，所述贴合胶治具包括本体和设置在所述本体上的多个贴合胶注入部，所述多个贴合胶注入部的长度相等，且其长度方向与所述本体垂直，每个贴合胶注入部具有沿其长度方向设置的贴合胶注入通道，所述本体上设有与所述多个贴合胶注入部的贴合胶注入通道连通的多个贴合胶注入孔；
将贴合胶注入所述贴合胶治具，并对注入所述贴合胶治具的贴合胶进行预固化处理，以使预固化的所述贴合胶的一个端面粘着在所述贴合胶治具对准的贴合面上；以及
将所述贴合胶治具移除。
优选的是，在将贴合胶注入所述贴合胶治具之前，所述触摸显示屏的制备方法还包括：
在所述贴合胶治具的贴合胶注入部的贴合胶注入通道的内壁表面涂覆离型剂。
优选的是，在将触摸面板的贴合面与显示面板的贴合面对准贴合之前，所述触摸显示屏的制备方法还包括：
在触摸面板或显示面板的贴合面上形成沿所述触摸面板和显示面板的边缘包围所述多个柱状预固化贴合胶的第二预固化贴合胶。
优选的是，在触摸面板的贴合面与显示面板的贴合面对准贴合之后，所述触摸显示屏的制备方法还包括：将所述第二预固化贴合胶完全固化以形成第二贴合单元，其中，所述第二贴合单元的上下两个端面分别与所述触摸面板的贴合面和所述显示面板的贴合面相粘结。
本发明的实施方式具有以下有益效果：
在本发明提供的触摸显示屏中，触摸面板与显示面板通过第一贴合单元的多个固化贴合胶柱贴合在一起。与采用全贴合的技术方案相比，第一贴合单元可以更好地吸收应力。这样，可以在触摸显示屏被弯曲时，使应力更少地被传递至显示面板上，从而降低显示面板被弯曲的程度。在此情况下，显示面板中的液晶分子能够更趋于保持正常的排布，从而避免发生漏光，改善泛白现象。同时，无需对显示面板进行减薄。
根据本发明提供的触摸显示屏的制备方法，在触摸面板和显示面板之间制备多个固化贴合胶柱组成的第一贴合单元；与采用全贴合的技术方案相比，第一贴合单元可以更好地吸收应力。这样，可以在触摸显示屏被弯曲时，使应力更少地被传递至显示面板上，从而降低显示面板被弯曲的程度。因此，显示屏中的液晶分子能够更趋于保持正常的排布，避免发生漏光，改善泛白现象。同时，无需对显示屏进行减薄。
本发明提供的贴合胶治具可以制备出的多个固化贴合胶柱，由多个固化贴合胶柱组成的第一贴合单元可以施加在触摸显示屏上，以便将触摸面板与显示面板贴合在一起。与采用全贴合的技术方案相比，本发明提供的贴合胶治具制备的第一贴合单元可以更好地吸收应力。这样，可以在触摸显示屏被弯曲时，使应力更少地被传递至显示面板上，从而降低显示面板被弯曲的程度。因此，显示面板中的液晶分子能够更趋于保持正常的排布，避免发生漏光，改善泛白现象。同时，无需对显示屏进行减薄。
附图说明
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。在附图中：
图1为采用全贴合技术的现有触摸显示屏的示意图；
图2为图1所示的触摸显示屏在Bending测试中的状态的示意图；
图3为根据本发明实施方式提供的触摸显示屏的示意图；
图4为图3所示触摸显示屏在Bending测试中的状态的示意图；
图5为贴合组件的俯视示意图；
图6为贴合胶治具的俯视示意图；
图7为图6所示的贴合胶治的剖视示意图。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
本发明提供一种触摸显示屏的实施方式。图3为根据本发明实施方式提供的触摸显示屏的示意图。如图3所示，在本实施方式中，所述触摸显示屏包括触摸面板1、显示面板2和贴合组件3，所述贴合组件3包括设置在触摸面板1与显示面板2之间的第一贴合单元31，所述第一贴合单元31由多个固化贴合胶柱组成；每个所述固化贴合胶柱的上下两个端面分别用于与触摸面板1的贴合面和显示面板2的贴合面相粘结。
在本实施方式中，触摸面板1和显示面板2通过第一贴合单元31的多个固化贴合胶柱粘结。与图1所示的全贴合方式相比，第一贴合单元31可以更好地吸收应力。这样，在触摸显示屏进行Bending测试而被弯曲时，可以使应力更少地被传递至显示面板2上，从而降低显示面板2被弯曲的程度，如图4所示。在这种情况下，显示面板2中的液晶分子更易于保持正常的排布，从而避免发生漏光，改善泛白现象。同时，无需对显示面板2进行减薄。
同时，与现有技术中的框贴技术方案相比，由于触摸面板1与显示面板2之间设置第一贴合单元31，所以触摸面板1与显示面板2之间的有效显示区域中的空气所占的面积较小。这样，与采用框贴的触摸显示屏相比，可以实现更好的显示效果。
优选地，所述第一贴合单元31的多个固化贴合胶柱在触摸面板1与显示面板2之间均匀分布。这样设置可以使触摸面板1与第一贴 合单元31之间，以及显示面板2与第一贴合单元31之间的贴合更加稳固，从而使所述触摸面板1和显示面板2之间更加牢固。
具体地，所述第一贴合单元31的固化贴合胶柱呈圆柱状。优选地，例如，所述固化贴合胶柱的直径可以为3～5mm，高度可以为0.2～0.3mm。
具体地，所述第一贴合单元31在所述触摸面板1上的投影的面积占所述触摸面板1的面积的40％～60％，以使所述第一贴合单元31在具有较好的吸收应力的效果的同时，还能将触摸面板1和显示面板2牢固的粘合在一起并且减小空气所占的面积。因此，可以实现更好的显示效果。
在本实施方式中，优选地，如图3和图5所示，所述贴合组件3还可以包括设置在所述触摸面板1与显示面板2之间的第二贴合单元32，所述第二贴合单元32沿所述触摸面板1和显示面板2的边缘包围所述第一贴合单元31，并且第二贴合单元32的上下两个端面分别用于与所述触摸面板1的贴合面和显示屏2的贴合面相粘结。所述第二贴合单元32可以增大贴合组件3与触摸面板1和显示面板2的接触面积，从而增强触摸面板1和显示面板2之间的粘合强度。优选地，例如，所述第二贴合单元32的宽度可以为4～6mm，高度可以与第一贴合单元31相等(即，0.2～0.3mm)。
在本实施方式提供的触摸显示屏中，触摸面板1与显示面板2通过第一贴合单元31的多个固化贴合胶柱贴合在一起。与图1所示的全贴合方式相比，第一贴合单元31可以更好地吸收应力。这样，可以在触摸显示屏被弯曲时，使应力更少地被传递至显示面板2上，从而降低显示面板2被弯曲的程度。因此，显示面板2中的液晶分子能够更趋于保持正常的排布，避免发生漏光，改善泛白现象。同时，无需对显示面板2进行减薄。
本发明还提供一种用于制备柱状贴合胶的贴合胶治具的实施方式。在本实施方式中，如图6和图7所示，具体地，所述贴合胶治具4包括本体41和设置在所述本体上的多个贴合胶注入部42；所述多个贴合胶注入部42的长度相等，且其长度方向与所述本体41垂直； 每个贴合胶注入部42具有沿其长度方向设置的贴合胶注入通道，所述本体41上设有与所述多个贴合胶注入部42的贴合胶注入通道连通的多个贴合胶注入孔43。优选地，所述贴合胶注入通道的截面可以为圆形。
本发明实施方式提供的贴合胶治具可以制备出的多个固化贴合胶柱，由多个固化贴合胶柱组成的第一贴合单元可以施加在触摸显示屏上，以便将触摸面板与显示面板贴合在一起。与图1所示的采用全贴合的技术方案相比，本发明提供的贴合胶治具制备的第一贴合单元可以更好地吸收应力。这样，可以在触摸显示屏被弯曲时，使应力更少地被传递至显示面板上，从而降低显示面板被弯曲的程度。因此，显示面板中的液晶分子能够更趋于保持正常的排布，避免发生漏光，改善泛白现象。同时，无需对显示面板进行减薄。
本发明还提供一种触摸显示屏的制备方法的实施方式。在本实施方式中，所述触摸显示屏的制备方法包括制备触摸面板和显示面板的步骤。此外，所述触摸显示屏的制备方法包括还包括以下步骤S1～S3。
S1，提供触摸面板和显示面板；
具体地，在所述步骤S1中，分别制备触摸面板和显示面板。所述触摸面板和显示屏的制备工艺是已知的，在此就不再赘述。
S2在触摸面板1或显示面板2的贴合面上形成多个柱状预固化贴合胶。
在所述步骤S2中，首先将触摸面板1或显示面板2放置在贴合机台上，然后在触摸面板1或显示面板2上形成柱状的预固化贴合胶。
具体地，所述步骤S2可以包括：
S20，将贴合胶治具与触摸面板1或显示屏2的贴合面对准。所述贴合胶治具包括本体和设置在所述本体上的多个贴合胶注入部；所述多个贴合胶注入部的长度相等，且其长度方向与所述本体垂直；每个贴合胶注入部具有沿其长度方向设置的贴合胶注入通道，所述本体上设有与所述多个贴合胶注入部的贴合胶注入通道连通的多个贴合胶注入孔。具体地，所述贴合胶治具可以如图6和图7所示。
S22，将贴合胶注入所述贴合胶治具，并对注入所述贴合胶治具的贴合胶进行预固化处理，以使预固化的所述贴合胶的一个端面粘着在所述贴合胶治具对准的贴合面上。
结合图6和图7所示的贴合胶治具，在步骤S22中，将贴合胶灌注到贴合胶注入通道内，使用刮刀将贴合胶治具的表面刮平，并将留在贴合胶注入通道内的贴合胶固化为柱状。
S23，将所述贴合胶治具移除。
在步骤S23中，将贴合胶治具移除，仅保留粘结在触摸面板1或显示面板2上的贴合胶，即所述柱状预固化贴合胶。
在本实施方式中，优选地，在步骤S22之前，所述触摸显示屏的制备方法还可以包括：
S21，在所述贴合胶治具的贴合胶注入部的贴合胶注入通道的内壁表面涂覆离型剂。
在步骤S22之前，所述离型剂的涂覆可以使固化后的所述贴合胶与所述贴合胶治具之间易于分离。因此，在步骤S24中，在将贴合胶治具移除时，不会连带着将柱状预固化贴合胶移除。
S3，将触摸面板的贴合面与显示面板的贴合面对准贴合，并且将所述柱状预固化贴合胶完全固化以形成由多个固化贴合胶柱组成的第一贴合单元31，其中所述固化贴合胶柱的上下两个端面分别与触摸面板1的贴合面和显示面板2的贴合面相粘结。
在步骤S3中，将显示面板2与形成有柱状预固化贴合胶的触摸面板1相贴合，或者将触摸面板1与形成有柱状预固化贴合胶的显示面板2相贴合；在贴合之后，对所述柱状预固化贴合胶进行完全固化，使贴合胶与显示面板2固定粘结或者与触摸面板1固定粘结。也就是说，通过第一贴合单元31将触摸面板1和显示面板2牢固地贴合在一起。
优选地，在步骤S3之前，所述触摸显示屏的制备方法还可以包括：在触摸面板1或显示面板2的贴合面上形成沿所述触摸面板1和显示面板2的边缘包围所述多个柱状预固化贴合胶的第二预固化贴合胶。
具体地，所述第二预固化贴合胶可以与上述柱状预固化贴合胶同时形成。在这种情况下，可以采用同一贴合胶治具，在一次工艺中同时形成柱状预固化贴合胶和第二预固化贴合胶。采用所述贴合胶治具制备第二预固化贴合胶的步骤与采用图6所示贴合胶治具制备柱状预固化贴合胶的步骤类似，在此不再赘述。
当然，所述第二预固化贴合胶也可以在所述柱状预固化贴合胶形成之后形成。在此情况下，可以采用同一贴合胶治具形成第二贴合单元；或者，也可以不使用贴合胶治具，而是直接在触摸面板1或显示面板2上涂布贴合胶，并将贴合胶预固化为所述第二预固化贴合胶。
在触摸面板1的贴合面与显示面板2的贴合面对准贴合之后，所述触摸显示屏的制备方法还可以包括：将所述第二预固化贴合胶完全固化，以形成第二贴合单元32，其中第二贴合单元32的上下两个端面分别与触摸面板1的贴合面和显示面板2的贴合面相粘结。
根据本实施方式提供的触摸显示屏的制备方法，可以在触摸面板1与显示面板2之间制备由多个固化贴合胶柱组成的第一贴合单元31，通过第一贴合单元31将触摸面板1与显示面板2贴合在一起；与全贴合的技术方案相比，第一贴合单元31可以更好地吸收应力。这样，可以在触摸显示屏被弯曲时，使应力更少地被传递至显示面板2上，从而降低显示面板2被弯曲的程度。因此，显示面板2中的液晶分子能够更趋于保持正常的排布，避免发生漏光，改善泛白现象。同时，无需对显示面板2进行减薄。
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，这些变型和改进也视为本发明的保护范围。

Claims (14)

  1. 一种触摸显示屏，包括触摸面板、显示面板和贴合组件，其特征在于，
    所述贴合组件包括设置在触摸面板与显示面板之间的第一贴合单元，所述第一贴合单元由多个固化贴合胶柱组成；每个所述固化贴合胶柱的上下两个端面分别用于与所述触摸面板的贴合面和所述显示面板的贴合面相粘结。
  2. 根据权利要求1所述的触摸显示屏，其特征在于，
    所述固化贴合胶柱在所述触摸面板与所述显示面板之间均匀分布。
  3. 根据权利要求1所述的触摸显示屏，其特征在于，
    每个所述固化贴合胶柱呈圆柱状。
  4. 根据权利要求3所述的触摸显示屏，其特征在于，
    每个所述固化贴合胶柱的直径为3～5mm，高度为0.2～0.3mm。
  5. 根据权利要求1～4任意一项所述的触摸显示屏，其特征在于，
    所述第一贴合单元在所述触摸面板上的投影面积占所述触摸面板的面积的40％～60％。
  6. 根据权利要求1所述的触摸显示屏，其特征在于，
    所述贴合组件还包括设置在所述触摸面板与所述显示面板之间的第二贴合单元；
    所述第二贴合单元沿所述触摸面板和所述显示面板的边缘包围所述第一贴合单元；并且
    所述第二贴合单元的上下两个端面分别用于与所述触摸面板的贴合面和所述显示面板的贴合面相粘结。
  7. 根据权利要求6所述的触摸显示屏，其特征在于，
    所述第二贴合单元的宽度为4～6mm。
  8. 一种用于制备根据权利要求1所述的贴合组件的贴合胶治具，其特征在于，
    所述贴合胶治具包括本体和设置在所述本体上的多个贴合胶注入部；
    所述多个贴合胶注入部的长度相等，且其长度方向与所述本体垂直；
    每个贴合胶注入部具有沿其长度方向设置的贴合胶注入通道，所述本体上设有与所述多个贴合胶注入部的贴合胶注入通道连通的多个贴合胶注入孔。
  9. 根据权利要求8所述的贴合胶治具，其特征在于，
    所述贴合胶注入通道的截面为圆形。
  10. 一种触摸显示屏的制备方法，其特征在于，所述方法包括：
    提供触摸面板和显示面板；
    在触摸面板或显示面板的贴合面上形成多个柱状预固化贴合胶；以及
    将触摸面板的贴合面与显示面板的贴合面对准贴合，并且将所述柱状预固化贴合胶完全固化以形成由多个固化贴合胶柱组成的第一贴合单元，其中所述固化贴合胶柱的上下两个端面分别与触摸面板的贴合面和显示面板的贴合面相粘结。
  11. 根据权利要求10所述的触摸显示屏的制备方法，其特征在于，在触摸面板或显示面板的贴合面上形成多个柱状预固化贴合胶的步骤包括：
    将贴合胶治具与触摸面板或显示面板的贴合面对准，其中，所 述贴合胶治具包括本体和设置在所述本体上的多个贴合胶注入部，所述多个贴合胶注入部的长度相等，且其长度方向与所述本体垂直，每个贴合胶注入部具有沿其长度方向设置的贴合胶注入通道，所述本体上设有与所述多个贴合胶注入部的贴合胶注入通道连通的多个贴合胶注入孔；
    将贴合胶注入所述贴合胶治具，并对注入所述贴合胶治具的贴合胶进行预固化处理，以使预固化的所述贴合胶的一个端面粘着在所述贴合胶治具对准的贴合面上；以及
    将所述贴合胶治具移除。
  12. 根据权利要求11所述的触摸显示屏的制备方法，其特征在于，在将贴合胶注入所述贴合胶治具之前，所述方法还包括：
    在所述贴合胶治具的贴合胶注入部的贴合胶注入通道的内壁表面涂覆离型剂。
  13. 根据权利要求10～12任意一项所述的触摸显示屏的制备方法，其特征在于，在将触摸面板的贴合面与显示面板的贴合面对准贴合之前，所述方法还包括：
    在触摸面板或显示面板的贴合面上形成沿所述触摸面板和显示屏的边缘包围所述多个柱状预固化贴合胶的第二预固化贴合胶。
  14. 根据权利要求13所述的触摸显示屏的制备方法，其特征在于，在触摸面板的贴合面与显示面板的贴合面对准贴合之后，所述方法还包括：
    将所述第二预固化贴合胶完全固化以形成第二贴合单元，其中，所述第二贴合单元的上下两个端面分别与所述触摸面板的贴合面和所述显示面板的贴合面相粘结。
PCT/CN2016/070986 2015-07-22 2016-01-15 触摸显示屏、触摸显示屏的制备方法和贴合胶治具 WO2017012308A1 (zh)

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