WO2020253294A1 - 折叠显示屏手机用的超薄玻璃保护盖板结构 - Google Patents

折叠显示屏手机用的超薄玻璃保护盖板结构 Download PDF

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WO2020253294A1
WO2020253294A1 PCT/CN2020/080563 CN2020080563W WO2020253294A1 WO 2020253294 A1 WO2020253294 A1 WO 2020253294A1 CN 2020080563 W CN2020080563 W CN 2020080563W WO 2020253294 A1 WO2020253294 A1 WO 2020253294A1
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ultra
explosion
thin glass
ink
protective cover
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PCT/CN2020/080563
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English (en)
French (fr)
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赖耀升
金渶桓
江建志
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恩利克（浙江）智能装备有限公司
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components

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  • the invention belongs to the field of folding display screens of mobile phones, and more specifically relates to an ultra-thin glass protective cover structure for folding display mobile phones.
  • the indispensable flexible screen in folding screen mobile phones not only has super portability and safety, but also has the advantages of high resolution, high brightness, and low energy consumption.
  • mobile phones using this technology can not only provide high image quality, but also Further enhance battery life.
  • the protective cover of the flexible OLED display panel must also be foldable, and it must also have other functions that the protective cover should have.
  • CPI or Plastic film such as PET is used as a protective cover.
  • the present invention provides a strong sense of transparency, can protect the folding OLED display screen in all directions, the explosion-proof ink has a certain degree of ductility, and the explosion-proof ink will not detach when the ultra-thin glass protective cover is bent. Misplacement and creases; and even if the display protective glass is broken, it will not fly, ensuring the safe use of the foldable mobile phone.
  • an ultra-thin glass protective cover structure for a mobile phone with a folding display comprising ultra-thin glass, an explosion-proof ink layer is arranged under the ultra-thin glass, and the explosion-proof ink The surface is provided with an ink frame.
  • the explosion-proof ink layer is formed by printing the explosion-proof ink on the lower surface of the ultra-thin glass.
  • the explosion-proof ink is a transparent ink.
  • the ink frame is printed on the lower surface of the explosion-proof ink.
  • an anti-fingerprint film is arranged above the ultra-thin glass.
  • the ultra-thin glass is ultra-thin tempered glass with a thickness of 30-70 microns.
  • the thickness of the explosion-proof ink layer is 30-50 microns.
  • the explosion-proof ink and the ink frame are printed by a gravure pad printing device.
  • An ultra-thin glass protective cover structure for a mobile phone with a folding display screen includes ultra-thin glass, an explosion-proof ink layer is arranged under the ultra-thin glass, an ink frame is arranged on the edge of the ultra-thin glass, and the ink frame is arranged on the ultra-thin glass. Between the glass and the explosion-proof ink layer.
  • the ultra-thin explosion-proof ink layer is coated by the gravure printing device, even if it is folded more than tens of thousands of times, there will be no creases on the glass surface and the explosion-proof ink layer; the explosion-proof ink has a certain degree of ductility, and the ultra-thin glass protective cover When the board is bent, the explosion-proof ink will not detach and cause dislocation; and even if the display protective glass is broken, it will not fly, ensuring the safe use of the foldable mobile phone;
  • the ink frame can be printed in various frame colors such as blue and gold, and the depth of the ink can be realized through the frame template design to achieve the texture effect, and different shapes and colors can be printed multiple times to achieve the color and pattern effect;
  • the ultra-thin glass protective cover designed by this scheme can be attached without the polarizer glue, which is suitable for various folding OLED display structures.
  • Figure 1 is a schematic diagram of the structure of the ultra-thin glass protective cover of the mobile phone with a folding display screen of the present invention
  • Fig. 2 is a schematic diagram of the structure of the intaglio pad printing device used in the present invention.
  • orientation words if there are the terms “center”, “horizontal (X)”, “longitudinal (Y)”, “vertical (Z)", “length”, “ “Width”, “Thickness”, “Top”, “Bottom”, “Front”, “Back”, “Left”, “Right”, “Vertical”, “Horizontal”, “Top”, “Bottom”, “Inner” “,” “outside”, “clockwise”, “counterclockwise” and other indicating orientations and positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying.
  • the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of “first” and “second” features may explicitly or implicitly include one or more of these features. In the description of the present invention, “several” and “several” mean two or two Above, unless otherwise specifically defined.
  • An ultra-thin glass protective cover structure for a folding display mobile phone includes an ultra-thin glass 2, an explosion-proof ink layer 543 is arranged under the ultra-thin glass 2, and an ink frame 4 is arranged on the lower surface of the explosion-proof ink.
  • the explosion-proof ink layer 543 is formed by printing an explosion-proof ink on the lower surface of the ultra-thin glass 2.
  • the ink frame 4 is printed on the lower surface of the explosion-proof ink.
  • the explosion-proof ink is prepared by mixing ink, curing agent, and diluent in a certain proportion. After the explosion-proof ink is printed, the glass will not splash around after it is broken.
  • Chinese patent CN201611259798.7 discloses an explosion-proof ink.
  • the explosion-proof ink can be a transparent ink, and the transparent explosion-proof ink is also prepared by the usual methods used by those skilled in the art.
  • the explosion-proof ink has a certain degree of ductility. When the ultra-thin glass 2 is bent, the explosion-proof ink will not detach and cause misalignment and creases. It also has an additional function, that is, no glass slag will occur when the display protection glass is broken.
  • the anti-fingerprint film 1 can prevent fingerprints from being left on the surface of the display screen.
  • the ink frame 4 can be printed with various frame colors such as blue and gold, and the ink depth can be achieved through the frame template design to achieve the texture effect, and different shapes and colors can be printed multiple times to achieve the color and pattern effect.
  • the ink frame 4 is used In order to shield the parts outside the display area of the display screen, and at the same time have a light-shielding effect, the ink frame 4 of different colors can be suitable for different color mobile phones.
  • an anti-fingerprint film 1 is preferably arranged above the ultra-thin glass 2.
  • the anti-fingerprint film 1 sprayed on the upper surface of the ultra-thin glass 2 is an existing technology.
  • the anti-fingerprint film 1 sprayed on the ultra-thin glass 2 can be Reduce fingerprint residue, while avoiding creases when folding.
  • the preferred ultra-thin glass 2 in this embodiment is ultra-thin tempered glass with a thickness of 30-70 microns, and ultra-thin tempered glass with a thickness of about 50 microns is preferably used.
  • the preferred ultra-thin glass 2 in this embodiment is ultra-thin tempered glass with a thickness of 30-70 microns, and ultra-thin tempered glass with a thickness of about 50 microns is preferably used.
  • Schott, Germany has begun to supply 25-100 microns in bulk Thick flexible glass, about 50cm wide and hundreds of meters long.
  • Japan's Asahi Glass Company made flexible glass SPOOL with a thickness of 0.05 mm using float method.
  • Chinese patent CN104045221B discloses a method for preparing flexible ultra-thin glass 2.
  • the thickness of the explosion-proof ink layer 543 is 30-50 microns, and the thickness of the explosion-proof ink is small, so that the protective cover of the ultra-thin glass 2 is very thin, has good light transmittance, and is easier to fold.
  • the preferred explosion-proof ink and ink frame 4 in this embodiment are printed by a gravure pad printing device.
  • the gravure pad printing device is shown in Fig. 2, which mainly includes an ink tank, an gravure cylinder 53, a pad printing cylinder 52 and a fixture 51.
  • the pad printing cylinder 52 is a rubber roller.
  • the explosion-proof ink is placed in the ink tank.
  • An ink cylinder 55 is also provided in the ink tank.
  • the ink cylinder 55 abuts against the intaglio cylinder 53, and the ink cylinder 55 absorbs the ink in the ink tank and transfers it to the intaglio cylinder 53.
  • the intaglio cylinder 53 rotates in the direction a, and a doctor blade 56 is arranged beside the intaglio cylinder 53 to scrape off the ink in the intaglio plate.
  • the intaglio cylinder 53 transfers the ink in the intaglio plate to the surface of the pad printing cylinder 52 ,
  • the printing cylinder 52 rotates in the b direction, the ultra-thin glass 2 is placed on the jig 51 and moving along the c direction, the ultra-thin glass 2 passes under the printing cylinder 52, and the printing cylinder 52 prints the explosion-proof ink on the ultra-thin glass 2.
  • the explosion-proof ink layer 543 reaches 30-50 microns.
  • the printing method of the ink frame 4 is the same as the explosion-proof ink printing method, except that the pattern template of the intaglio cylinder 53 is different from the pattern template of the intaglio cylinder 53 used by the explosion-proof ink.
  • An ultra-thin glass protective cover structure for a folding display mobile phone includes ultra-thin glass 2, an explosion-proof ink layer 543 is arranged under the ultra-thin glass 2, and an ink frame 4 is arranged on the edge of the ultra-thin glass 2.
  • the frame 4 is arranged between the ultra-thin glass 2 and the explosion-proof ink layer 543.
  • the difference between this embodiment and the first embodiment is that the positions of the ink frame 4 and the explosion-proof ink layer 543 are exchanged, and the ink frame 4 is printed on the lower surface of the ultra-thin glass 2.
  • the edge of the ultra-thin glass 2 The ink frame 4 is printed, there is no ink in the middle area, and then the explosion-proof ink is printed.
  • the explosion-proof ink is partially printed on the ink frame 4 and partly printed on the surface of the ultra-thin glass 2, but both are still printed by the gravure pad printing device .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本发明公开了一种折叠显示屏手机的超薄玻璃保护盖板结构，包括超薄玻璃，所述超薄玻璃下方设置有防爆油墨层，所述防爆油墨层下表面设置有油墨边框，本发明透明感强，能够全方位保护折叠OLED显示屏，防爆油墨具有一定的延展性，超薄玻璃保护盖板弯曲的时候防爆油墨不会脱离而导致错位及出现折痕；并且即使显示屏保护玻璃破裂，也不会飞散，确保了可折叠手机的使用安全。

Description

折叠显示屏手机用的超薄玻璃保护盖板结构 技术领域
本发明属于手机的折叠显示屏领域，更具体的说涉及一种折叠显示屏手机用的超薄玻璃保护盖板结构。
背景技术
从2019年开年以来，包括京东方等公司相继曝出了完全自研的可折叠的自发光的柔性屏幕。据网络消息，三星、华为、等公司也已经做出了相关的产品。中国联通甚至在官微中表示“折叠屏手机不远了！”
折叠屏手机中必不可少的柔性屏不仅拥有超强的便携性与安全性，也拥有高分辨率、高亮度、低能耗等优点，未来采用该技术的手机不仅可以提供高画质，还能进一步增强续航能力。
目前市面上发布的折叠屏手机都存在很多问题，比如三星的Galaxy Fold，刚发布测试机，就被爆屏幕上出现各种问题。所以目前还没手机厂商真正地量产发售折叠屏手机。
折叠屏手机除了柔性OLED显示面板必须可折叠外，柔性OLED显示面板外层的保护盖板也必须是可折叠的，而且也必须要有保护盖板该有的其他功能，目前都是使用CPI或者PET等塑料膜作为保护盖板。
发明内容
针对现有技术的不足，本发明提供了一种透明感强，能够全方位保护折叠OLED显示屏，防爆油墨具有一定的延展性，超薄玻璃保护盖板弯曲的时候防爆油墨不会脱离而导致错位及出现折痕；并且即使显示屏保护玻璃破裂，也不会飞散，确保了可折叠手机的使用安全。
为实现上述目的，本发明提供了如下技术方案：一种折叠显示屏手机的超薄玻璃保护盖板结构，包括超薄玻璃，所述超薄玻璃下方设 置有防爆油墨层，所述防爆油墨下表面设置有油墨边框。
进一步的所述防爆油墨层由防爆油墨印刷至超薄玻璃下表面而成。
进一步的所述防爆油墨为透明油墨。
进一步的所述油墨边框印刷于防爆油墨下表面。
进一步的所述超薄玻璃上方设置有防指纹膜。
进一步的所述超薄玻璃为厚度在30-70微米的超薄钢化玻璃。
进一步的所述防爆油墨层的厚度为30-50微米。
进一步的所述防爆油墨和油墨边框由凹版移印装置印刷而成。
一种折叠显示屏手机的超薄玻璃保护盖板结构，包括超薄玻璃，所述超薄玻璃下方设置有防爆油墨层，所述超薄玻璃的边缘设置有油墨边框，油墨边框设置于超薄玻璃与防爆油墨层之间。
与现有技术相比，本发明的有益效果是：
1、该方案应用于折叠OLED显示屏专用的超薄玻璃保护盖板，具有完美的透明感与触感，且全方位保护折叠OLED显示屏；
2、通过凹版移印装置涂上超薄防爆油墨层，即使折叠超过数万次，在玻璃表面和防爆油墨层上也不会出现折痕；防爆油墨具有一定的延展性，超薄玻璃保护盖板弯曲的时候防爆油墨不会脱离而导致错位；并且即使显示屏保护玻璃破裂，也不会飞散，确保了可折叠手机的使用安全；
3、油墨边框可以印刷蓝色、金色等各种边框颜色，还可以通过边框模板设计来实现油墨的深浅来达到纹理效果，还可以多次印刷不同形状和颜色达到色彩和图案效果；
4、本方案设计的超薄玻璃保护盖板可以不与偏光片胶连贴合，适合各种折叠OLED显示屏结构。
附图说明
图1为本发明折叠显示屏手机的超薄玻璃保护盖板结构的示意 图；
图2为本发明中所使用的凹版移印装置的结构示意图。
附图标记：1、防指纹膜；2、超薄玻璃；3、防爆油墨层；4、油墨边框；51、治具；52、移印滚筒；53、凹版滚筒；54、油墨仓；55、油墨滚筒；56、刮墨刀。
具体实施方式
参照图1和图2对本发明折叠显示屏手机的超薄玻璃保护盖板结构的实施例做进一步说明。
在本发明的描述中，需要说明的是，对于方位词，如有术语“中心”，“横向(X)”、“纵向(Y)”、“竖向(Z)”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示方位和位置关系为基于附图所示的方位或位置关系，仅是为了便于叙述本发明和简化描述，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、以特定方位构造和操作，不能理解为限制本发明的具体保护范围。
此外，如有术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或隐含指明技术特征的数量。由此，限定有“第一”、“第二”特征可以明示或者隐含包括一个或者多个该特征，在本发明描述中，“数个”、“若干”的含义是两个或两个以上，除非另有明确具体的限定。
实施例一：
一种折叠显示屏手机的超薄玻璃保护盖板结构，包括超薄玻璃2，所述超薄玻璃2下方设置有防爆油墨层543，所述防爆油墨下表面设置有油墨边框4。
所述防爆油墨层543由防爆油墨印刷至超薄玻璃2下表面而成。
所述油墨边框4印刷于防爆油墨下表面。
防爆油墨是通过油墨、固化剂、稀释剂三者按一定比例调配而成，印刷上防爆油墨之后玻璃破碎之后不会四处飞溅。比如中国专利CN201611259798.7公开了一种防爆油墨。防爆油墨可以为透明油墨，其中透明的防爆油墨也是该领域技术人员惯用手段调配制成。
防爆油墨具有一定的延展性，超薄玻璃2弯曲的时候防爆油墨不会脱离而导致错位和产生折痕，并且具有额外的功能，即在显示屏保护玻璃破裂时，也不会发生玻璃碎渣飞散，确保可折叠手机的使用安全，防指纹膜1可避免指纹留在显示屏的表面。
油墨边框4可以印刷蓝色、金色等各种边框颜色，还可以通过边框模板设计来实现油墨的深浅来达到纹理效果，还可以多次印刷不同形状和颜色达到色彩和图案效果，油墨边框4用于遮蔽显示屏显示区域外的部件，同时具有遮光效果，不同颜色的油墨边框4能够适用于不同颜色的手机搭配。
本实施例优选的所述超薄玻璃2上方设置有防指纹膜1，防指纹膜1喷涂于超薄玻璃2上表面已为现有技术，喷涂于超薄玻璃2上方的防指纹膜1能够降低指纹残留，同时在折叠时可避免出现折痕。
本实施例优选的所述超薄玻璃2为厚度在30-70微米的超薄钢化玻璃，优选使用厚度50微米左右的超薄钢化玻璃，2013年德国肖特公司已经开始批量供应25-100微米厚的柔性玻璃，宽约50cm，长数百米。2014年日本旭硝子公司用浮法制成厚度0.05毫米的柔性玻璃SPOOL。中国专利CN104045221B公开了一种柔性超薄玻璃2的制备方法。
所述防爆油墨层543的厚度为30-50微米，防爆油墨的厚度较小，使得超薄玻璃2保护盖板非常薄，透光性好，且更易折叠。
本实施例优选的所述防爆油墨和油墨边框4由凹版移印装置印刷而成。
其中凹版移印装置如图2所示，其主要包括油墨仓、凹版滚筒 53、移印滚筒52和治具51，其中移印滚筒52为胶辊。
以印刷防爆油墨为例，防爆油墨置于油墨仓内，油墨仓内还设置有油墨滚筒55，油墨滚筒55抵触凹版滚筒53，油墨滚筒55吸取油墨仓内的油墨将其转移至凹版滚筒53的凹版内，凹版滚筒53沿a方向转动，在凹版滚筒53旁设置有刮墨刀56，将凹版滚筒53除凹版内的油墨刮掉，凹版滚筒53将凹版内的油墨转移至移印滚筒52表面，移印滚筒52沿b方向转动，超薄玻璃2置于治具51上并沿c方向运动，超薄玻璃2由移印滚筒52下方通过，移印滚筒52将防爆油墨印刷于超薄玻璃2表面，通过反复印刷3-5次，使防爆油墨层543达到30-50微米，通过此凹版移印装置，印刷效率高，厚度均匀，厚度控制精准。
油墨边框4的印刷方式与防爆油墨印刷方式相同，仅凹版滚筒53的图案模板与防爆油墨使用的凹版滚筒53图案模板不同。
实施例二：
一种折叠显示屏手机的超薄玻璃保护盖板结构，包括超薄玻璃2，所述超薄玻璃2下方设置有防爆油墨层543，所述超薄玻璃2的边缘设置有油墨边框4，油墨边框4设置于超薄玻璃2与防爆油墨层543之间。
也就是说本实施例与实施例一的区别在于将油墨边框4与防爆油墨层543的位置进行调换，先在超薄玻璃2的下表面印刷油墨边框4，通常此时超薄玻璃2的边缘印刷了油墨边框4，中间区域无油墨，再印刷防爆油墨，此时防爆油墨部分印刷于油墨边框4上，部分印刷于超薄玻璃2表面，但二者均依然采用凹版移印装置印刷而成。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本 发明的保护范围。

Claims (9)

  1. 一种折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：包括超薄玻璃，所述超薄玻璃下方设置有防爆油墨层，所述防爆油墨下表面设置有油墨边框。
  2. 根据权利要求1所述的折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：所述防爆油墨层由防爆油墨印刷至超薄玻璃下表面而成。
  3. 根据权利要求2所述的折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：所述防爆油墨为透明油墨。
  4. 根据权利要求1所述的折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：所述油墨边框印刷于防爆油墨下表面。
  5. 根据权利要求1所述的折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：所述超薄玻璃上方设置有防指纹膜。
  6. 根据权利要求1-5中任意一项所述的折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：所述超薄玻璃为厚度在30-70微米的超薄钢化玻璃。
  7. 根据权利要求6所述的折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：所述防爆油墨层的厚度为30-50微米。
  8. 根据权利要求1-5中任意一项所述的折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：所述防爆油墨和油墨边框由凹版移印装置印刷而成。
  9. 一种折叠显示屏手机的超薄玻璃保护盖板结构，其特征在于：包括超薄玻璃，所述超薄玻璃下方设置有防爆油墨层，所述超薄玻璃的边缘设置有油墨边框，油墨边框设置于超 薄玻璃与防爆油墨层之间。
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