CN112150929A - 背板和显示装置 - Google Patents

背板和显示装置 Download PDF

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CN112150929A
CN112150929A CN202011031246.7A CN202011031246A CN112150929A CN 112150929 A CN112150929 A CN 112150929A CN 202011031246 A CN202011031246 A CN 202011031246A CN 112150929 A CN112150929 A CN 112150929A
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display device
bending
slits
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祝翠林
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to CN202011031246.7A priority Critical patent/CN112150929A/zh
Priority to US17/261,907 priority patent/US11931992B2/en
Priority to PCT/CN2020/123067 priority patent/WO2022062016A1/zh
Publication of CN112150929A publication Critical patent/CN112150929A/zh
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    • G09F9/30Indicating 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
    • G09F9/301Indicating 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
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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/14Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
    • B32B5/142Variation across the area of the layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B5/147Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces by treatment of the layer
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
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    • H10K77/111Flexible substrates
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    • Y10T428/24298Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本发明提供一种背板和显示装置。该背板应用于显示装置,所述显示装置具有弯折区,背板包括:贴合区,所述贴合区用于与所述显示装置的弯折区贴合,所述贴合区包括:至少一个切口;其中,当所述弯折区和所述贴合区一起弯折时,所述弯折区受到挤压应力,所述至少一个切口向内收缩,减少所述弯折区受到的挤压应力。该方案通过在贴合区设置至少一个切口,可以减少贴合区与显示装置的弯折区弯折时受到的应力,提高了显示装置的良品率。

Description

背板和显示装置
技术领域
本发明涉及显示技术领域,特别是涉及一种背板和显示装置。
背景技术
随着显示技术的发展,具有全面屏的显示装置越来越受到人们的欢迎。
其中,在具有柔性全面屏的显示装置中,其侧边也进行画面显示。制作过程中,具有柔性全面屏的显示装置需要进行U型贴合。其中,侧边弧面贴合过程中,显示面板受到的挤压应力最大,容易断裂。
故,有必要提供一种侧边弧面在贴合时不容易断裂的显示装置。
发明内容
本发明的目的在于提供一种背板和显示装置,可以提高显示装置的良品率。
本发明实施例提供了一种背板,应用于显示装置,所述显示装置具有弯折区,背板包括:贴合区,所述贴合区用于与所述显示装置的弯折区贴合,所述贴合区包括:至少一个切口;
其中,当所述弯折区和所述贴合区一起弯折时,所述弯折区受到挤压应力,所述至少一个切口向内收缩,减少所述弯折区受到的挤压应力。
所述至少一个切口用于减少所述贴合区与所述弯折区贴合时受到的应力。
在一实施例中,所述至少一个切口为沟槽和/或通孔。
在一实施例中,所述至少一个切口采用冲切工艺制备。
在一实施例中,所述至少一个切口中每一个切口的深度小于或等于所述贴合区的厚度。
在一实施例中,所述至少一个切口的形状为条形、矩形、环形和/或圆形。
在一实施例中,当包括至少两个切口时,所述至少两个切口的形状为矩形,所述至少两个切口中每一个切口沿所述贴合区弯曲的方向具有边长,所述每一个切口与相邻切口之间具有间距,其中,所述边长和所述间距的比值大于或等于0.5,且小于等于1.5。
在一实施例中,所述背板还包括:支撑区;所述贴合区还包括第一区域和第二区域,所述第一区域与所述支撑区相接,所述第二区域设置在所述第一区域远离所述支撑区的一侧;
其中,当所述贴合区包括多个切口时,所述多个切口全部设置在所述第一区域,或者所述多个切口设置在所述第一区域和所述第二区域中。
在一实施例中,当所述多个切口设置在所述第一区域和所述第二区域中时,所述第一区域中切口的排布密度大于所述第二区域中切口的排布密度。
在一实施例中,当所述多个切口全部设置在所述第一区域时,所述第一区域中所述多个切口均匀排布。
本发明实施例还提供了一种显示装置,其包括:如上所述的背板和显示面板;
所述显示面板包括所述弯折区;
所述背板的所述贴合区与所述弯折区贴合。
本发明实施例的背板和显示装置,通过在背板的贴合区设置至少一个切口,可以减少贴合区与显示装置的弯折区弯折时受到的应力,提高了显示装置的良品率。
附图说明
下面结合附图,通过对本申请的具体实施方式详细描述,将使本申请的技术方案及其它有益效果显而易见。
图1为本发明实施例提供的显示装置的第一截面结构示意图。
图2为本发明实施例提供的背板的第一截面结构示意图。
图3为本发明实施例提供的背板的第二截面结构示意图。
图4为本发明实施例提供的背板的第三截面结构示意图。
图5为本发明实施例提供的背板的第四截面结构示意图。
图6为本发明实施例提供的显示装置的第二截面结构示意图。
图7为本发明实施例提供的显示装置的第一贴合流程示意图。
图8为本发明实施例提供的切口的结构示意图。
图9为本发明实施例提供的显示装置的第二贴合流程示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
在本申请的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“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”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开,下文中对特定例子的部件和设置进行描述。当然,它们仅仅为示例,并且目的不在于限制本申请。此外,本申请可以在不同例子中重复参考数字和/或参考字母,这种重复是为了简化和清楚的目的,其本身不指示所讨论各种实施方式和/或设置之间的关系。此外,本申请提供了的各种特定的工艺和材料的例子,但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本发明实施例提供了一种显示装置,请参照图1,图1为本发明实施例提供的显示装置的结构示意图。如图1所示,显示装置1包括背板11和显示面板12。其中,显示面板12可以为液晶显示面板或有机发光显示面板,在此不做具体限定。具体的,显示面板12包括发光器件121和偏光片122。其中,发光器件121用于发光。偏光片122用于对光进行偏振。
显示面板12包括显示区D,显示区D可以用于显示画面。如图1所示,显示区D包括弯折区B,弯折区B设置在显示区D的两侧。该弯折区B沿着一预定方向弯折。
背板11用于支撑设置在其上的显示面板12。背板11包括贴合区111和支撑区112,其中,贴合区111和支撑区112相接。当组装显示装置1时,背板11的贴合区111与显示面板12的弯折区B贴合,背板11的支撑区112与显示面板12中显示区D除去弯折区B的部分贴合。
如图1所示,贴合区111包括至少一个切口1111。在一实施例中,贴合区111还包括第一区域1112和第二区域1113。其中,贴合区111与支撑区112相接的区域为第一区域1112。第二区域1113设置在第一区域1112远离支撑区112的一侧。
当弯折区B和贴合区111一起弯折时,弯折区B受到挤压应力。其中,弯折区B与该第一区域1112对应的位置受到的挤压应力最大。因此当贴合区111包括多个切口1111时,如图1所示,可以将该切口1111全部设置在该第一区域1112,以减少弯折区B与该第一区域1112对应的位置受到的挤压应力。具体的,可以使该多个切口1111均匀排布在第一区域1112中。
进一步的,为了使整个弯折区B受到的挤压应力得到缓解,还可以在第二区域1113上也设置切口1111。比如在第二区域1113靠近第一区域1112的2-4毫米区域设置切口1111。在一实施例中,如图2所示,可以使第一区域1112中切口1111的排布密度大于第二区域1113中切口的排布密度,这样第一区域1112中的切口1111可以缓解更大的挤压应力。在一实施例中,第一区域1112中切口1111的排布密度也可以设置为与第二区域1113中切口1111的排布密度相同,再将第一区域1112中切口1111的平均深度设置为大于第二区域中切口1111的平均深度,同样也可以使第一区域1112中的切口1111可以缓解更大的挤压应力。具体的,如图3所示,可以使贴合区111中靠近支撑区112的切口1111的深度设置为大于远离支撑区112的切口1111的深度。
其中,切口1111的形状可以为条形、矩形、环形和/或圆形。当贴合区111包括多个切口1111时,该多个切口1111的形状可以相同,也可以不相同。如图4和图5均为背板11的俯视图。如图4所示,贴合区111中的切口1111均为矩形。如图5所示,贴合区111中的切口1111分别为矩形和环形。
如图4所示,当贴合区111包括至少两个切口1111时,至少两个切口的形状为矩形,至少两个切口1111中每一个切口1111沿贴合区111弯曲的方向具有边长L,每一个切口与相邻切口1111之间具有间距D,其中,边长L和间距D的比值大于或等于0.5,且小于等于1.5。通过合理地设置切口1111的尺寸和排布密度,既可以使贴合区111缓解较多的挤压应力,也可以使贴合区111具有较好的支撑力。
在一实施例中,切口1111可以为沟槽和/或通孔。如图1-3所示,切口1111为沟槽,如图6所示,切口1111为通孔。其中,贴合区111中的沟槽和/或通孔的数量不限。比如,可以减少整个贴合区111的厚度,形成一个沟槽。还可以在贴合区111设置多个阵列排布的沟槽。其中沟槽的全部面积和贴合区111的面积的比值范围可以在1/4至3/4之间,优选为1/2。该面积比值范围可以根据弯折区B受到的挤压应力大小以及自身硬度进行设置,在此不做具体限定。
需要说明的是,当切口1111为沟槽时,如图7所示,可以在将贴合区111与弯折区B弯折之前,在贴合区111上制作沟槽,再将背板11与显示面板12进行贴合并弯折,最后将盖板13贴合在显示面板12上。也可以在将贴合区111与弯折区B贴合并弯折,且盖板13贴合在显示面板12之后,再在贴合区111上制作沟槽。当切口1111为通孔时,优选的,在将贴合区111与弯折区B贴合之后,再在贴合区111上制作通孔。
在一实施例中,切口1111可以采用冲切工艺制备。由于采用冲切工艺制备的切口1111不用对贴合区111中的材料进行去除,因此可以减少工艺流程。
其中,如图8所示,当切口1111采用冲切工艺制备时,切口111的深度可以小于贴合区111的厚度,也可以等于贴合区111的厚度,即切口1111可以不贯穿或贯穿贴合区111。其中,当贴合区111包括多个切口1111时,每个切口1111的深度可以相同,也可以不同。
需要说明的是,在一实施例中,在将贴合区111与弯折区B弯折之前,对贴合区111进行冲切形成切口1111。在另一实施例中,如图9所示,在将贴合区111与弯折区B弯折,且将盖板13贴合到显示面板12上后,对贴合区111进行冲切形成切口1111。
在一实施例中,支撑区112靠近贴合区111的区域也可以设置切口,以进一步缓解弯折时的挤压应力。比如在支撑区112靠近贴合区域111的1-2毫米的区域设置切口。
显示装置1还包括盖板13。盖板13设置在显示面板12上,用于保护显示面板12。具体的,盖板13设置在偏光片122上。其中,盖板13具有弯曲区131。组装显示装置1时,该弯曲区131与显示面板12的弯折区B进行贴合。
进一步的,显示装置1还包括胶体层14。盖板3通过胶体层14固定再显示面板12上。其中,胶体层14的组成材料包括OCA(Optically Clear Adhesi ve,光学胶)。
本发明实施例的背板和显示装置,通过在背板的贴合区设置至少一个切口,可以减少贴合区与显示装置的弯折区贴合时受到的挤压应力,提高了显示装置的良品率。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种背板和显示装置进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想;本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (10)

1.一种背板,应用于显示装置,所述显示装置具有弯折区,其特征在于,包括:贴合区,所述贴合区用于与所述显示装置的弯折区贴合,所述贴合区包括:至少一个切口;
其中,当所述弯折区和所述贴合区一起弯折时,所述弯折区受到挤压应力,所述至少一个切口向内收缩,减少所述弯折区受到的挤压应力。
2.根据权利要求1所述的背板,其特征在于,所述至少一个切口为沟槽和/或通孔。
3.根据权利要求1所述的背板,其特征在于,所述至少一个切口采用冲切工艺制备。
4.根据权利要求3所述的背板,其特征在于,所述至少一个切口中每一个切口的深度小于或等于所述贴合区的厚度。
5.根据权利要求1-4任意一项所述的背板,其特征在于,所述至少一个切口的形状为条形、矩形、环形和/或圆形。
6.根据权利要求5所述的背板,其特征在于,当包括至少两个切口时,所述至少两个切口的形状为矩形,所述至少两个切口中每一个切口沿所述贴合区弯曲的方向具有边长,所述每一个切口与相邻切口之间具有间距,其中,所述边长和所述间距的比值大于或等于0.5,且小于等于1.5。
7.根据权利要求1所述的背板,其特征在于,所述背板还包括:支撑区;所述贴合区还包括第一区域和第二区域,所述第一区域与所述支撑区相接,所述第二区域设置在所述第一区域远离所述支撑区的一侧;
其中,当所述贴合区包括多个切口时,所述多个切口全部设置在所述第一区域,或者所述多个切口设置在所述第一区域和所述第二区域中。
8.根据权利要求7所述的背板,其特征在于,当所述多个切口设置在所述第一区域和所述第二区域中时,所述第一区域中切口的排布密度大于所述第二区域中切口的排布密度。
9.根据权利要求7所述的背板,其特征在于,当所述多个切口全部设置在所述第一区域时,所述第一区域中所述多个切口均匀排布。
10.一种显示装置,其特征在于,包括:如权利要求1-9任意一项所述的背板和显示面板;
所述显示面板包括所述弯折区;
所述背板的所述贴合区与所述弯折区贴合。
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