CN103901662B - 一种窄边框液晶模组 - Google Patents

一种窄边框液晶模组 Download PDF

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CN103901662B
CN103901662B CN201410118189.4A CN201410118189A CN103901662B CN 103901662 B CN103901662 B CN 103901662B CN 201410118189 A CN201410118189 A CN 201410118189A CN 103901662 B CN103901662 B CN 103901662B
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CN103901662A (zh
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王将峰
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TCL China Star Optoelectronics Technology Co Ltd
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Priority to US14/647,114 priority patent/US20170003435A1/en
Priority to PCT/CN2014/075119 priority patent/WO2015143740A1/zh
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0081Mechanical 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
    • G02B6/0086Positioning aspects
    • G02B6/0088Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133608Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322Mechanical guidance or alignment of LCD panel support components

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)

Abstract

一种窄边框液晶模组包括:一液晶面板,一导光模块,其包括至少一组光学薄膜和导光板,所述导光板置于光学薄膜的后侧;一胶框,其架设于导光板上,并承托起光学薄膜的边缘;其中,所述光学薄膜中包括一棱镜层,所述棱镜层与胶框之间相互部分交叠或无交叠,当两者部分交叠时,棱镜层在胶框上伸出的宽度不超过2mm,以减小胶框在液晶面板边缘上折射成像而产生的暗带。通过精确控制棱镜层的宽度,有效减少液晶面板上胶框周围的暗带,在保障液晶面板显示效果的前提下,定量化地控制棱镜层与胶框之间的交叠宽度或相互间距,明显减小了胶框在棱镜层上的成像而产生的暗带,从而优化了液晶模组的显示品质。

Description

一种窄边框液晶模组
技术领域
本发明涉及一种液晶模组,尤其是指一种窄边框的液晶模组。
背景技术
目前,窄边框的液晶模组具有显示区域大,外观美等特点,越来越受欢迎。在现有窄边框的液晶模组中,胶框压在导光板上,光学薄膜放在胶框上方,为了达到规定的亮度,光学薄膜中通常包含有棱镜片,棱镜片会使得下方的物体成像,这样,参照图1和图2所示,当棱镜片放置于胶框上方时,胶框会被棱镜片成像,胶框的像投入液晶模组的显示区,导致液晶模组的边缘形成暗带。当棱镜片盖住胶框宽度为2.5-3.5mm时,在液晶模组的边缘将会产生宽为2-3mm的暗带,从而影响了显示效果。
发明内容
为了解决上述技术问题,本发明的目的在于提供了一种可减小液晶面板边缘的胶框在棱镜层上投影成像而产生的暗带,优化显示效果的窄边框液晶模组。
本发明提供了一种窄边框液晶模组,其包括:
一液晶面板,
一导光模块,其包括至少一组光学薄膜和导光板,所述导光板置于光学薄膜的后侧;
一胶框,其架设于导光板上,并承托起光学薄膜的边缘;
其中,所述光学薄膜中包括一棱镜层,所述棱镜层与胶框之间相互部分交叠或无交叠,当两者部分交叠时,棱镜层在胶框上伸出的宽度不超过2mm,以减小胶框在液晶面板边缘上折射成像而产生的暗带。
优选地,当两者部分交叠时,棱镜层在胶框上伸出的宽度不超过0.7mm;当两者无交叠时,棱镜层与胶框之间的间距差为0-3mm。通过控制棱镜层伸出或间离胶框的距离,来缩小胶框透过棱镜层成像产生的暗带。
优选地,所述液晶模组进一步包括散热组件和导光板,所述胶框一端固定于散热组件上,另一端叠放于导光板上,所述导光板设于光学薄膜的后侧,通过胶框将光学薄膜托起于导光板的上方。
优选地,所述棱镜层选用0度棱镜片或90度棱镜片,所述0度棱镜片的棱镜长边平行于胶框的上侧和下侧,90度棱镜片的棱镜长边平行于胶框的左侧和右侧。
所述棱镜层为0度棱镜片时,当棱镜层与胶框的上侧或下侧部分交叠时,棱镜层在胶框的上侧或下侧伸出的宽度不超过0.7mm;当两者无交叠时,棱镜层与胶框的上侧或下侧之间的间距差为0-3mm。
所述棱镜层为90度棱镜片时,当棱镜层与胶框的左侧或右侧部分交叠时,棱镜层在胶框的左侧或右侧伸出的宽度不超过0.7mm;当两者无交叠时,棱镜层与胶框的左侧或右侧之间的间距差为0-3mm。
与现有技术相比,在本发明窄边框液晶模组通过精确控制棱镜层的宽度,有效减少液晶面板上胶框周围的暗带,在保障液晶面板显示效果的前提下,经过多次试验检验,定量化地控制棱镜层与胶框之间的交叠宽度或相互间距,对光学薄膜中的棱镜层进行裁切,明显减小了胶框在棱镜层上的成像而产生的暗带,从而优化了液晶模组的显示品质。
附图说明
图1为现有窄边框液晶模组的结构示意图;
图2为现有窄边框液晶模组中胶框在棱镜层上的成像光路图;
图3为本发明窄边框液晶模组的实施例一的结构示意图;
图4为本发明窄边框液晶模组中胶框在棱镜层上的成像光路图;
图5为本发明窄边框液晶模组中胶框在裁切前0度棱镜片上的成像效果图;
图6为本发明窄边框液晶模组中胶框在裁切前90度棱镜片上的成像效果图;
图7为本发明窄边框液晶模组中胶框在裁切后0度棱镜片上的成像效果图;
图8为本发明窄边框液晶模组中胶框在裁切后90度棱镜片上的成像效果图;
图9为本发明窄边框液晶模组的实施例二的结构示意图。
具体实施方式
针对窄边框液晶模组中,在液晶面板发光过程中,用于固定液晶面板周壁的胶框往往会在液晶面板上成像投影,产生暗带,影响液晶面板上的整体成像效果。为了消除这种边缘暗带,参照图3所示,本发明提供了一种窄边框液晶模组,其包括:一液晶面板1,一导光模块2,其包括至少一组光学薄膜20和导光板22,所述导光板22置于光学薄膜20的后侧;一胶框3,其架设于导光板22上,并承托起光学薄膜20的边缘;其中,所述光学薄膜20中包括一棱镜层202,所述棱镜层202与胶框3之间相互部分交叠或无交叠,当两者部分交叠时,棱镜层202在胶框3上伸出的宽度不超过2mm,以减小胶框3在液晶面板1边缘上折射成像而产生的暗带。
其中,液晶面板1的四臂由外边框固定,液晶面板1卡入外边框形成的内腔中固定。导光模块2包括光学薄膜20和导光板22,光学薄膜20覆盖于导光板22上,影像透过光学薄膜20成像于液晶面板1上。所述液晶模组进一步包括散热组件4,所述胶框3一端固定于散热组件4上,另一端叠放于导光板22上,所述导光板22设于光学薄膜20的后侧,通过胶框3将光学薄膜20托起于导光板22的上方。
所述光学薄膜20为多层结构,其中设有一棱镜层202,各组薄膜相互平行相叠。在本发明中,所述棱镜层202为第三层,通过控制棱镜层202与胶框3之间的交叠面积,以减小胶框3在棱镜层202上投影成像产生的暗带。以下通过两个实施例说明对棱镜层与胶框之间的位置关系。
参照图4所示,示出胶框经裁切后的棱镜层成像的光路图,其中,虚线光路是上方光线的反向延长线,虚线方框为光线由棱镜层折射所成的影像。由于棱镜层202缩短了,其对胶框3的遮挡减少了,因此,原胶框投射成像缩小或消失了,即暗带3a缩小或消失了。
实施例一
参照图3所示,当棱镜层202与胶框3相互交叠时,两者部分交叠,棱镜层202在胶框3上伸出的宽度a不超过0.7mm,优选为0.5mm,即棱镜层202盖住胶框4的宽度a不超过0.7mm,这样,胶框3透过棱镜层202产生的暗带基本消失,通过精确控制棱镜层202的宽度,有效减少液晶面板上胶框周围的暗带。
所述棱镜层202可选用0度棱镜片或90度棱镜片。参照图5所示,所述0度棱镜片的棱镜长边平行于胶框3的上侧和下侧;参照图6所示,90度棱镜片的棱镜长边平行于胶框3的左侧和右侧。
当采用0度棱镜片时,裁切前,上侧和下侧的胶框透过棱镜层成像形成暗带,这时,参照图7所示,对棱镜层202的上侧面或下侧面裁切,使得当棱镜层202与胶框3的上侧或下侧部分交叠时,棱镜层202在胶框3的上侧或下侧伸出的宽度不超过0.7mm,胶框3透过棱镜层202产生的暗带基本消失。
当采用90度棱镜片时,裁切前,左侧和右侧的胶框透过棱镜层成像形成暗带,这时,参照图8所示,对棱镜层202的左侧面或右侧面裁切,使得当棱镜层202与胶框3的左侧或右侧部分交叠时,棱镜层202在胶框3的左侧或右侧伸出的宽度不超过0.7mm,胶框3透过棱镜层202产生的暗带基本消失。
实施例二
参照图9所示,当棱镜层202与胶框3相互无交叠时,棱镜层202与胶框3之间的间距b差为0-3mm,优选为2.5mm。即棱镜层202伸出胶框的距离b不超过3mm,这样,胶框3透过棱镜层202产生的暗带完全消失,且不影响图像在液晶面板上呈现效果。
当采用0度棱镜片时,裁切前,上侧和下侧的胶框透过棱镜层成像形成暗带,这时,对棱镜层202的上侧面或下侧面裁切,使得当棱镜层202与胶框3的上侧或下侧之间的间距位于0-3mm时,胶框3透过棱镜层202产生的暗带完全消失。
当采用90度棱镜片时,裁切前,左侧和右侧的胶框透过棱镜层成像形成暗带,这时,对棱镜层202的左侧面或右侧面裁切,使得当棱镜层202与胶框3的左侧或右侧之间的间距位于0-3mm时,胶框3透过棱镜层202产生的暗带完全消失。
在本发明窄边框液晶模组通过精确控制棱镜层的宽度,有效减少液晶面板上胶框周围的暗带,在保障液晶面板显示效果的前提下,经过多次试验检验,定量化地控制棱镜层与胶框之间的交叠宽度或相互间距,对光学薄膜中的棱镜层进行裁切,明显减小了胶框在棱镜层上的成像而产生的暗带,从而优化了液晶模组的显示品质。

Claims (6)

1.一种窄边框液晶模组,其特征在于包括:
一液晶面板,
一导光模块,其包括至少一组光学薄膜和导光板,所述导光板置于光学薄膜的后侧;
一胶框,其架设于导光板上,并承托起光学薄膜的边缘;
其中,所述光学薄膜中包括一棱镜层,所述棱镜层与胶框之间相互部分交叠,当两者部分交叠时,棱镜层在胶框上伸出的宽度不超过2mm,以减小胶框在液晶面板边缘上折射成像而产生的暗带。
2.根据权利要求1所述的窄边框液晶模组,其特征在于:当两者部分交叠时,棱镜层在胶框上伸出的宽度不超过0.7mm。
3.根据权利要求2所述的窄边框液晶模组,其特征在于:所述液晶模组进一步包括散热组件和导光板,所述胶框一端固定于散热组件上,另一端叠放于导光板上,所述导光板设于光学薄膜的后侧,通过胶框将光学薄膜托起于导光板的上方。
4.根据权利要求3所述的窄边框液晶模组,其特征在于:所述棱镜层选用0度棱镜片或90度棱镜片,所述0度棱镜片的棱镜长边平行于胶框的上侧和下侧,90度棱镜片的棱镜长边平行于胶框的左侧和右侧。
5.根据权利要求4所述的窄边框液晶模组,其特征在于:所述棱镜层为0度棱镜片时,当棱镜层与胶框的上侧或下侧部分交叠时,棱镜层在胶框的上侧或下侧伸出的宽度不超过0.7mm。
6.根据权利要求4所述的窄边框液晶模组,其特征在于:所述棱镜层为90度棱镜片时,当棱镜层与胶框的左侧或右侧部分交叠时,棱镜层在胶框的左侧或右侧伸出的宽度不超过0.7mm。
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