CN105785498B - 背光模组、液晶显示装置 - Google Patents
背光模组、液晶显示装置 Download PDFInfo
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- G02B6/0033—Means for improving the coupling-out of light from the light guide
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- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G—PHYSICS
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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Abstract
本发明提供一种背光模组、液晶显示装置,属于液晶显示技术领域,其可解决现有的液晶显示装置中的背光模组厚度较大,故难以实现薄型化的问题。本发明的背光模组包括:导光板,其具有相对的底面和出光面,以及连接在底面和出光面间的多个侧面,所述侧面包括入光侧面和非入光侧面;设于所述导光板的非入光侧面外、与所述非入光侧面接触、相对于所述导光板固定设置的挡光件,所述挡光件远离导光板非入光侧面的一侧设有支撑凸起,所述支撑凸起靠近导光板出光面所在平面的一侧为支撑侧,所述支撑侧与导光板底面间的距离小于导光板的厚度;胶框,其包括隔垫部,所述隔垫部设于挡光件的支撑凸起的支撑侧上。
Description
技术领域
本发明属于液晶显示技术领域,具体涉及一种背光模组、液晶显示装置。
背景技术
如图1所示,现有液晶显示装置主要包括背光模组、显示面板2、面框7等。在背光模组中,导光板1、反射片11、光学膜层4等设于背板8中,胶框3连接在背板8上,且胶框3具有设于导光板2(或者说光学膜层4)出光面上的隔垫部31,当把背光模组与显示面板2、面框7等组成液晶显示装置时,隔垫部31就被夹在显示面板2边缘部与导光板1之间,并通过双面胶9与显示面板2粘接,从而起到固定显示面板2和导光板1位置的作用。其中,在导光板1的非入光侧面(即没有设置线光源的侧面)上还粘接有挡光件5,挡光件5为反光条,用于阻止光从非入光侧面射出。
由于注塑工艺的限制,以上胶框的隔垫部不可能太薄,且为保证强度,隔垫部也必须达到较大厚度。显然,按照以上方式,背光模组的厚度至少为导光板厚度加上隔垫部厚度(不考虑背板、光学膜层等)。由此,现有背光模组的厚度较大,不利于液晶显示装置的薄型化。
发明内容
本发明针对现有的液晶显示装置中的背光模组厚度较大,故难以实现薄型化的问题,提供一种厚度小的背光模组、液晶显示装置。
解决本发明技术问题所采用的技术方案是一种背光模组,其包括:
导光板,其具有相对的底面和出光面,以及连接在底面和出光面间的多个侧面,所述侧面包括入光侧面和非入光侧面;
设于所述导光板的非入光侧面外、与所述非入光侧面接触、相对于所述导光板固定设置的挡光件,所述挡光件远离导光板非入光侧面的一侧设有支撑凸起,所述支撑凸起靠近导光板出光面所在平面的一侧为支撑侧,所述支撑侧与导光板底面间的距离小于导光板的厚度;
胶框,其包括隔垫部,所述隔垫部设于挡光件的支撑凸起的支撑侧上。
优选的是,所述挡光件由金属材料构成。
优选的是,所述挡光件粘接在所述导光板的非入光侧面上。
优选的是,所述背光模组还包括:设于所述导光板出光面外的光学膜层,所述光学膜层的边缘部设有通孔;所述胶框的隔垫部包括用于插入所述光学膜层的通孔中的插入结构。
进一步优选的是,所述背光模组还包括:设于所述光学膜层远离导光板一侧的压片,所述压片具有通孔,所述挡光件的插入结构插入所述压片的通孔中。
优选的是,每个所述挡光件包括多个间隔设置的支撑凸起;每个所述胶框包括多个间隔设置的隔垫部。
进一步优选的是,所述胶框的相邻隔垫部之间通过连接部相连,所述连接部靠近导光板出光面所在平面的一侧粘接有双面胶。
优选的是,所述背光模组还包括:背板,其包围在所述导光板的底面外,所述胶框连接在所述背板上。
解决本发明技术问题所采用的技术方案是一种液晶显示装置,其包括:
上述的背光模组;
显示面板,其设于所述导光板的出光面外,所述胶框的隔垫部夹设在所述挡光件的支撑凸起与显示面板之间。
优选的是,所述液晶显示装置还包括:面框,其包围在所述显示面板的边缘部外。
本发明的背光模组中,胶框的隔垫部不是设于导光板的出光面上,而是设于导光板的非入光侧面外的支撑凸起上,即隔垫部是位于导光板侧方的,从而隔垫部可有一部分“低于”导光板出光面,这样,在隔垫部实际厚度不变的情况下,背光模组的总厚度降低,相应也降低了液晶显示装置的总厚度,利于实现薄型化。
附图说明
图1为现有液晶显示装置的局部剖面结构示意图;
图2为本发明的实施例的一种挡光件的结构示意图;
图3为本发明的实施例的一种挡光件与导光板的结构示意图;
图4为图3中A部分的局部放大结构示意图;
图5为本发明的实施例的一种胶框的结构示意图;
图6为图5中B部分的局部放大结构示意图;
图7为本发明的实施例的一种液晶显示装置在隔垫部处的局部剖面结构示意图;
图8为本发明的实施例的一种液晶显示装置在连接部处的局部剖面结构示意图;
图9为本发明的实施例的一种液晶显示装置中部分结构的分解结构示意图;
其中,附图标记为:1、导光板;11、反射片;2、显示面板;3、胶框;31、隔垫部;311、插入结构;32、连接部;4、光学膜层;5、挡光件;51、支撑凸起;6、压片;7、面框;8、背板;9、双面胶。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案,下面结合附图和具体实施方式对本发明作进一步详细描述。
实施例1:
如图2至图9所示,本实施例提供一种液晶显示装置,以及其中使用的背光模组。
具体的,本实施例的背光模组包括导光板1、挡光件5、胶框3。其中:
导光板1具有相对的底面和出光面,以及连接在底面和出光面间的多个侧面,侧面包括入光侧面和非入光侧面。
导光板1通常为矩形板,矩形板的两个大表面中一个为底面,用于反光,其外可设有反射片11,而另一个面为用于光线射出的出光面。而底面和出光面通过多个侧面连接,其中至少有一个侧面外需要设置线光源,为入光侧面,且还有至少一个不用设置线光源的侧面为非入光侧面。
挡光件5则设于导光板1的非入光侧面外、与非入光侧面接触、相对于导光板1固定设置,且挡光件5远离导光板1非入光侧面的一侧设有支撑凸起51,支撑凸起51靠近导光板1出光面所在平面的一侧为支撑侧,支撑侧与导光板1底面间的距离小于导光板1的厚度。
可见,挡光件5设在导光板1的非入光侧面外,并与非入光侧面接触以防止非入光侧面漏光,同时挡光件5还相对于导光板1固定,即二者之间是不能产生相对运动的。
如图2至图4所示,与常规的薄片状挡光件不同,本实施例的挡光件5是由刚性材料构成的立体结构,其一侧用于与导光板1的非入光侧面相接触,而与该侧相对的一侧(即远离导光板1的一侧)则设有支撑凸起51,该支撑凸起51靠近导光板1出光面所在平面的一侧(图中为上侧)为支撑侧,该支撑侧与导光板1底面间的距离小于导光板1的厚度,从而支撑凸起51相对于导光板1出光面“下凹”,或者说,支撑凸起51要比导光板1非入光侧面的宽度更“窄”。
胶框3则包括隔垫部31,隔垫部31设于挡光件5的支撑凸起51的支撑侧上。
本实施例的背光模组中,胶框3同样具有隔垫部31,但与现有胶框不同的是,其隔垫部31不是设于导光板1出光面上,而是设于导光板1的非入光侧面外的支撑凸起51上,即隔垫部31是位于导光板1侧方的,从而隔垫部31有一部分“低于”导光板1出光面,这样,在隔垫部31实际厚度不变的情况下,背光模组的总厚度降低,相应也降低了液晶显示装置的总厚度,利于实现薄型化。
优选的,挡光件5由金属材料构成。
也就是说,挡光件5优选由铝等常规的金属材料构成,这是因为金属是最常见的具有足够强度的材料,且一般具有较高的反射性,故由金属材料构成的挡光件5可将射到非入光侧面上的光反射回导光板1内部,提高光利用率。
优选的,挡光件5的第一面粘接在导光板1的非入光侧面上。
也就是说,挡光件5优选通过常规的粘接方式直接固定在非入光侧面上,因为这种方式实现简单,连接牢固,成本低。当然,挡光件5也可通过其他设置,只要可实现二者间的相对固定即可,例如,挡光件5和导光板1上可分别设有对应的卡扣结构,从而挡光件5与导光板1卡接。
优选的,背光模组还包括:设于导光板1出光面外的光学膜层4,光学膜层4的边缘部设有通孔;胶框3的隔垫部31包括用于插入光学膜层4的通孔中的插入结构311。
为对从导光板1射出的光进行进一步处理,故导光板1的出光面上还可设有扩散片等光学膜层4。现有技术中,可通过在背板上设置挡墙等固定光学膜层4。而在本实施例中,如图7所示,由于胶框3的隔垫部31有一部分“低于”导光板1出光面,故可在该隔垫部31中设置插入结构311(如凸起的小柱),插入结构311插入光学膜层4上的对应通孔中,从而固定光学膜层4。
更优选的,液晶显示装置还包括设于光学膜层4远离导光板1一侧间的压片6,其具有通孔,挡光件5的插入结构311插入压片6的通孔中。
也就是说,如图7、图9所示,还可在光学膜层4上设置压片6,而以上插入结构311也插入压片6的通孔中以将其固定,压片6具有一定强度,从而可将光学膜层4的边缘部压住,以免其翘起等。
优选的,每个挡光件5包括多个间隔设置的支撑凸起51;每个胶框3包括多个间隔设置的隔垫部31。
显然,如图8、图9所示,挡光件5必须在导光板1的非入光侧面的各位置均有设置才能起到完全的挡光效果,但支撑凸起51则只要在挡光件5长度方向上的几个位置间隔设置即可起到支撑作用;相应的,胶框3的隔垫部31也要为多个并间隔设置。这样,既可起到定位导光板1(和显示面板2)的作用,且其定位作用又不是太强,故当显示过程中导光板1受热膨胀时,能允许导光板1产生微小运动,避免因定位过死而损坏其他结构。
优选的,胶框3的相邻隔垫部31之间通过连接部32相连,连接部32靠近导光板1出光面所在平面的一侧粘接有双面胶9。
如图5、图8、图9所示,当挡光件5的支撑凸起51间隔设置时,胶框3的隔垫部31也是间隔的,而这些间隔的隔垫部31之间优选通过连接部32相连,以便提高胶框3整体的强度。其中,连接部32下方并无支撑凸起51,故其厚度可比隔垫部31厚度大以提高强度,由此隔垫部31位置下侧看起来形成类似“凹槽”的结构。其中,连接部32靠近导光板1出光面所在平面的一侧(即上侧)是靠近显示面板2的,故其上可粘接有双面胶9,以便在组成液晶显示装置时与显示面板2粘接,进一步改善固定效果。
优选的,背光模组还包括:背板8,其包围在导光板1的底面外,胶框3连接在背板8上。
显然,背光模组中还可设置常规的背板8,以将导光板1(反射片11)等装在其中,并起到固定胶框3的作用。
本实施例的液晶显示装置则包括:
上述的背光模组;
显示面板2,其设于导光板1的出光面外,胶框3的隔垫部31夹设在挡光件5的支撑凸51起与显示面板2之间。
如图7所示,本实施例的液晶显示装置中,挡光件5位于导光板1侧面外且相对固定,二者相当于一体结构,因此胶框3的隔垫部31设于支撑凸起51与显示面板2之间就可限定导光板1与显示面板2的位置。又由于支撑凸起51相对导光板1出光面“下凹”,因此,只要将隔垫部31设于支撑凸起51和显示面板2之间,则在隔垫部31厚度不变的情况下,显示面板2与导光板1间的距离可降低,能实现液晶显示装置的薄型化。
优选的,液晶显示装置还包括面框7,其包围在所述显示面板的边缘部外。
也就是说,与常规的液晶显示装置相同,本实施例的液晶显示装置也可包括面框7,面框7包围在显示面板2出光面的边缘部外,从而背光模组的背板8一起围住导光板1、反射片11、光学膜层4、挡光件5、胶框3等,组成相对完整的结构。
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 (10)
1.一种背光模组,其特征在于,包括:
导光板,其具有相对的底面和出光面,以及连接在底面和出光面间的多个侧面,所述侧面包括入光侧面和非入光侧面;
设于所述导光板的非入光侧面外、与所述非入光侧面接触、相对于所述导光板固定设置的挡光件,所述挡光件远离导光板非入光侧面的一侧设有支撑凸起,所述支撑凸起靠近导光板出光面所在平面的一侧为支撑侧,所述支撑侧与导光板底面间的距离小于导光板的厚度;
胶框,其包括隔垫部,所述隔垫部设于挡光件的支撑凸起的支撑侧上。
2.根据权利要求1所述的背光模组,其特征在于,
所述挡光件由金属材料构成。
3.根据权利要求1所述的背光模组,其特征在于,
所述挡光件粘接在所述导光板的非入光侧面上。
4.根据权利要求1所述的背光模组,其特征在于,还包括:
设于所述导光板出光面外的光学膜层,所述光学膜层的边缘部设有通孔;
所述胶框的隔垫部包括用于插入所述光学膜层的通孔中的插入结构。
5.根据权利要求4所述的背光模组,其特征在于,还包括:
设于所述光学膜层远离导光板一侧的压片,所述压片具有通孔,所述胶框的隔垫部的插入结构插入所述压片的通孔中。
6.根据权利要求1所述的背光模组,其特征在于,
每个所述挡光件包括多个间隔设置的支撑凸起;
每个所述胶框包括多个间隔设置的隔垫部。
7.根据权利要求6所述的背光模组,其特征在于,
所述胶框的相邻隔垫部之间通过连接部相连,所述连接部靠近导光板出光面所在平面的一侧粘接有双面胶。
8.根据权利要求1所述的背光模组,其特征在于,还包括:
背板,其包围在所述导光板的底面外,所述胶框连接在所述背板上。
9.一种液晶显示装置,其特征在于,包括:
权利要求1至8中任意一项所述的背光模组;
显示面板,其设于所述导光板的出光面外,所述胶框的隔垫部夹设在所述挡光件的支撑凸起与显示面板之间。
10.根据权利要求9所述的液晶显示装置,其特征在于,还包括:
面框,其包围在所述显示面板的边缘部外。
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