CN1729424A - 常白型超扭曲向列液晶显示器装置 - Google Patents

常白型超扭曲向列液晶显示器装置 Download PDF

Info

Publication number
CN1729424A
CN1729424A CNA200380106709XA CN200380106709A CN1729424A CN 1729424 A CN1729424 A CN 1729424A CN A200380106709X A CNA200380106709X A CN A200380106709XA CN 200380106709 A CN200380106709 A CN 200380106709A CN 1729424 A CN1729424 A CN 1729424A
Authority
CN
China
Prior art keywords
liquid crystal
film
display
display equipment
polarizer
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CNA200380106709XA
Other languages
English (en)
Other versions
CN1729424B (zh
Inventor
F·里恩豪特斯
H·K·劳斯马
M·H·J·M·汉内曼恩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TPO Hong Kong Holding Ltd
Original Assignee
Koninklijke Philips Electronics NV
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.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CN1729424A publication Critical patent/CN1729424A/zh
Application granted granted Critical
Publication of CN1729424B publication Critical patent/CN1729424B/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • G02F1/137Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • G02F1/1397Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell the twist being substantially higher than 90°, e.g. STN-, SBE-, OMI-LC cells
    • 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
    • G02F1/133553Reflecting elements
    • 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
    • G02F1/133528Polarisers
    • 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
    • G02F1/13363Birefringent elements, e.g. for optical compensation
    • 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
    • G02F2203/00Function characteristic
    • G02F2203/09Function characteristic transflective
    • 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
    • G02F2203/00Function characteristic
    • G02F2203/66Normally white display, i.e. the off state being white

Landscapes

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

Abstract

本发明涉及一种用于多路复用操作的常白型超扭曲向列液晶显示器装置,包括:基本上包括液晶层(2)的液晶单元,所述液晶层(2)夹在前基板和后基板(3,4)之间;至少部分反射膜(5,13,14,15),布置在同所述后基板(4)相邻的位置;和前光学叠层,布置在前基板的观察者一侧,所述叠层包括一个或多个光学膜,其中前光学叠层仅由偏振器(7)和任意的光散射膜(6)组成。

Description

常白型超扭曲向列液晶显示器装置
本发明涉及一种用于多路复用操作的常白型超扭曲向列液晶显示器装置。
近年来,在各种领域例如移动应用中诸如超扭曲向列液晶显示器(STN LCD)的扭曲向列液晶显示器的使用不断增加。超扭曲向列液晶显示器在各种结构中是可用的,这种结构的实例有光模干涉(OMI)显示器和薄膜补偿的超扭曲向列(FSTN)显示器。两种结构都比较经济,并可受到多路复用寻址技术的推动。但是,上述两种结构都存在缺陷。
关于OMI显示器,在专利文件US-5 557 434中公开了这种显示器的一个实例。该文件公开了包括多个精心设计的补偿膜的显示器,因此生产该结构相对比较昂贵。此外,大量的层数容易增加显示器的总厚度(例如当应用于移动应用中时),而这是人们不期望的。
关于FSTN显示器,在图1中公开了这种显示器的实例的示意图。该结构基本上包括夹在前基板和后基板之间的液晶层。在其前侧,布置了前偏振器和补偿膜,由此该膜被夹在前基板和前偏振器之间。在其后侧,布置了后偏振器和透反射器(transflector),由此后偏振器被夹在后基板和透反射器之间。但是,在反射模式中该结构存在多个缺陷。首先,显示器存在由于透反射器的位置(也就是在后偏振器之后)所导致的视差。其次,反射模式中,显示器受到由于偏振器对光的吸收而导致的亮度相对较低的困扰,这是因为事实上在该结构中光到达显示器的观察者之前必需四次经过偏振器,且每次通过偏振器时由于吸收都导致亮度降低。
为增加反射模式中的亮度,已经开发了利用所谓内部、单元内部反射器(透反射器)的超扭曲向列显示器。图2(内部反射器)和图3(内部透反射器)中公开了这种显示器的实例。在两个实施例中,反射器/透反射器都定位于液晶单元中(即基板之间),因此反射模式中通过偏振器的次数将会减少。
使用内部透反射器或者反射器的超扭曲向列液晶显示器基本上可有两种类型:常白型(NW)和常黑型(NB)。两种类型都使用了放置在液晶单元观察者一侧的前光学叠层,该前光学叠层包括前偏振器、一个或两个补偿膜及通常位于前基板和该一个或多个补偿膜之间的光散射膜。如果使用内部透反射器(见图3),该显示器还包括含有偏振器、一个或两个补偿膜的后光学叠层,该偏振器和该补偿膜共同构成了所谓的环形偏振器。对于NW和NB显示器,通常使用在带有内部反射或透反射器的STN-LCD中的扭曲向列液晶显示层的延迟(retardation)和扭曲角度分别典型地为760-860nm和240°-270°。
然而,正如上面所指出的,同上述现有技术的显示器相比,仍然存在对于能够以较低成本制造、且具有减少厚度的显示器的需求。因此本发明的一个目标是得到一种能够以经济的方法实现的反射或透反射STN显示器。然而,同反射FSTN LCD相比,本发明的另一个目标是得到一种厚度减小的反射或透反射STN显示器,本发明的再一个目标是得到在反射模式下具有较高断电状态(off-state)亮度的反射或透反射STN显示器。
根据本发明,通过引言中所述的用于多路复用操作的常白型超扭曲向列液晶显示器装置至少可以部分实现上述和其它目标,该常白型超扭曲向列液晶显示器装置还包括:基本上包括液晶层的液晶单元,所述液晶层夹在前基板和后基板之间;布置在与所述后基板相邻位置的至少部分反射膜;布置在前基板观察者一侧的前光学叠层,该叠层包括一个或多个光学膜,所述前光学叠层基本上由偏振器和任意的光散射膜组成。
通过布置至少部分反射膜,将其放置在与所述后基板相邻的位置,以及使用设计适合的液晶层,前光学叠层基本上可以仅包括偏振器和任意的光散射膜,即前光学叠层中不再需要补偿膜。因此,本发明的显示器比相应的现有技术显示器能够以更低成本制造,而且也可制造地更薄。根据本发明,所述液晶层的延迟适当地在500-750nm的范围之间。
根据本发明的一个实施例,所述至少部分反射膜为允许显示器装置进行反射操作的反射膜。
根据第二实施例,所述至少部分反射膜为允许显示器装置进行透反射操作的透反射膜。适当地,该透反射显示器包括布置在液晶层后侧的后光学叠层,该叠层包括一个或多个光学膜。后光学叠层适当地包括后偏振器和布置在后偏振器和液晶单元之间的补偿膜。
本发明可以使用作为单元内部的内部反射器而布置在所述前基板和后基板之间的至少部分反射膜。可替代地,将所述至少部分反射膜布置在所述后光学叠层中,基本上同所述后基板相邻。
随后将参考附图通过当前优选的实施例来介绍本发明。
图1示出根据现有技术的膜超扭曲向列液晶显示器的示意性横截面,
图2示出根据现有技术的带有单元内部反射器的反射超扭曲向列液晶显示器的示意性横截面,
图3示出根据现有技术的带有单元内部透反射器的透反射超扭曲向列液晶显示器的示意性横截面,
图4示出根据本发明的带有单元内部反射器的反射超扭曲向列液晶显示器的示意性横截面,
图5示出根据本发明的带有单元内部透反射器的透反射超扭曲向列液晶显示器的示意性横截面,
图6示出根据本发明的带有外部反射器的反射超扭曲向列液晶显示器的示意性横截面,
图7示出根据本发明的带有外部透反射器的透反射超扭曲向列液晶显示器的示意性横截面,
图8示出六种反射显示器结构的反射-电压曲线图,
图9示出前偏振器吸收轴定向相对于液晶单元摩擦(rubbing)方向的示意图,
图10示出图8的六种反射显示器结构的断电状态反射图表,
图11示出图8的六种反射显示器结构的断电状态彩色坐标图,
图12示出根据本发明的用于透反射显示器结构的透射-电压曲线图,
图13示出根据本发明的前偏振器吸收轴、后偏振器吸收轴定向相对液晶单元摩擦方向、透反射显示器后补偿层的慢轴方向的示意图。
本发明以实现带有单元内部反射器/透反射器(或下文将要介绍的单元附近的反射器/透反射器)的常白型超扭曲向列显示器(NW STNLCD)和实现上述本发明目标为基础,该上述目标可以通过使用仅仅包括偏振器和任意的光散射膜的前光学叠层获得。因此,在前光学叠层中不需要包括补偿膜,同现有技术相比这是一个改进。因此,叠层可以制造的更薄,制造过程也可得到简化。
图4中公开了本发明的第一实施例。装置1包括布置在前基板3和后基板4之间的超扭曲向列液晶层2。设置液晶层使其通过所述前基板和后基板上的电极结构(未示出)受到控制。此外,该装置包括布置在液晶层2和后基板4之间的单元内部反射器5。前基板3和后基板4、液晶层2、单元内部反射器5共同构成液晶单元8。在液晶单元8的观察者一侧,布置了前光学叠层9,其包括前偏振器7和任意的光散射膜6。应当注意到,同本申请中使用的一样,在这个文本中术语光散射膜应当被理解为散射光通过的一个部件,因此所述部件可以包括由一个或多个单独形成的层所构成的膜。光散射膜6夹在前偏振器7和前基板3之间。为了适合多路复用操作,上述液晶层2拥有大约195-270°(优选的为大约240-270°)的扭曲角。此外,选择液晶层2以具有约500-750nm的延迟。应当注意到,该延迟间隔比现有技术的FSTN和常规的STN LCD(具有间隔760-860nm内的延迟)的延迟间隔低。因此,本发明的显示器可以称作为低延迟LCD。通过共同使用低延迟液晶层和所提出的前光学叠层,可以避免补偿膜的使用。由此,降低了显示器的制造成本,与此同时,还减小了显示器的厚度。在上述实施例中,使用了单元内部反射器5。然而,本发明也可被实施在使用外部反射器的液晶显示器中,该外部反射器诸如固定在后基板4的外侧上的单元附近反射器。图6中公开了包括外部反射器的本发明的第二实施例。该实施例和图4中公开的实施例相似,不同之处在于它不包括图4的单元内部反射器5,而代替的是布置了外部反射器14,所述反射器形成在后基板4的外侧上。
本发明也可以实现为透反射显示器。图5中示出本发明的第三实施例。装置1包括布置在前基板3和后基板4之间的超扭曲向列液晶层2。设置液晶层使其通过所述前基板和后基板上的电极结构(未示出)受到控制。此外,该装置包括布置在液晶层2和后基板4之间的单元内部透反射器13。前基板3和后基板4、液晶层2、单元内部透反射器13共同构成液晶单元8。在液晶单元8的观察者一侧,布置了前光学叠层9,其包括前偏振器7和任意的光散射膜6。应当注意到,同本申请中使用的一样,在这个文本中术语光散射膜应当被理解为散射光通过的一个部件,因此所述部件可以包括由一个或多个单独形成的层所构成的膜。光散射膜6夹在前偏振器7和前基板3之间。此外,在液晶单元8的后侧面上,布置了包括后偏振器12和补偿膜11的后光学叠层8,该补偿膜11夹在后偏振器12和后基板之间。同样在这种情况下,为了适于多路复用操作,上述液晶层2拥有大约195-270°(优选的为大约240-270°)的扭曲角。此外,选择液晶层2以具有约500-750nm的延迟。应当注意到,该延迟间隔比现有技术FSTN和常规的STN LCD(具有760-860nm范围内的延迟)的延迟间隔低。因此,本发明的显示器可以称作为低延迟LCD。通过共同使用低延迟液晶层和所提出的前光学叠层,可以避免补偿膜的使用。由此,降低了显示器的制造成本,与此同时,减小了显示器的厚度。同上面所述的方法相同,在使用外部透反射器的液晶显示器中也可实施本发明,该外部透反射器诸如固定在后基板4的外侧上的近单元透反射器。图7中公开了包括外部透反射器的本发明的第四实施例。该实施例同图5中公开的实施例相似,不同之处在于它不包括图5中的单元内部透反射器13,代替的是布置了外部透反射器15,该透反射器夹在后基板4和补偿膜11之间。在这两种情况下,外部反射器/透反射器可以通过例如粘合的方法附着到后基板4上。在图5和图7中公开的两种透反射实施例中,后光学叠层10中包括了补偿膜11。图12中公开了透反射LRE STN LCD的透射-电压曲线,其拥有650nm的延迟和αfp=60°的前偏振器角度(见图9),同时图13中公开了该显示器的光学结构。这种情况下,补偿膜11由140nm的四分之一波片构成。
随后,会更详细地描述上面公开的低延迟超扭曲向列液晶显示器的效果。图8示出六种不同的超扭曲向列显示器的反射-电压曲线:
1)标准FSTN显示器,其延迟为大约820nm。
2)带内部反射器的240°扭曲常规NW STN显示器,其延迟为大约820nm。
3)根据本发明带有内部反射器(见图4)的LRE STN,其延迟为550nm,前偏振器角度为αfp=50°(下面将详述)。
4)根据本发明带有内部反射器(见图4)的LRE STN,其延迟为600nm,前偏振器角度为αfp=55°(下面将详述)。
5)根据本发明带有内部反射器(见图4)的LRE STN,其延迟为650nm,前偏振器角度为αfp=60°(下面将详述)。
6)根据本发明带有内部反射器(见图4)的LRE STN,其延迟为700nm,前偏振器角度为αfp=65°(下面将详述)。
在所有情况下,图8的曲线是在假设反射器为理想的即拥有100%反射率的情况下得出的。如图8所示,本发明的LRE STN显示器(3-6)比现有技术的显示器(1-2)相比拥有更低的延迟值。而且,从图8还可以看出,不同显示器之间的反射-电压曲线的陡度差别不大。这说明,这些LRE STN显示器(3-6)的多路复用能力同标准的和常规的显示器(1-2)的多路复用能力相当。如图9所示,前偏振器角度αfp定义了前偏振器7的吸收轴的定向。图9还公开了以本身已知的方式影响液晶层2对准的摩擦方向。
图10公开了上面限定的显示器结构(1-6)的断电状态反射。从图10可以看出,根据本发明的LRE STN LCD(3-6)的断电状态反射比相应的FSTN LCD(1)的断电状态反射高,比带有内部反射器(或透反射器)和两个补偿膜的常规LCD(2)的断电状态反射低。固此,本发明的LRE STN LCD的断电状态反射处于另人满意的水平。
图11公开了反射模式下上面限定的显示器结构(1-6)的断电状态彩色坐标。从图11可以看出,LRE STN LCD(3-6)的断电状态的中性色稍微带有蓝色。然而,本发明的LRE STN LCD(3-6)的中性色比现有技术显示器(1-2)的中性色要好。

Claims (8)

1.一种用于多路复用操作的常白型超扭曲向列液晶显示器装置,包括:
-基本上包括液晶层(2)的液晶单元(8),所述液晶层(2)夹在前基板和后基板(3,4)之间,
-至少部分反射膜(5,13,14,15),布置在与所述后基板(4)相邻的位置,和
-前光学叠层(9),布置在前基板(3)的观察者一侧,所述叠层包括一个或多个光学膜,
-其中前光学叠层(9)基本上由偏振器(7)和任意的光散射膜(6)组成。
2.权利要求1中所述的显示器装置,其中所述液晶层(2)的延迟在500-750nm的范围中。
3.权利要求1或2中所述的显示器装置,其中所述至少部分反射膜为允许显示器装置进行反射操作的反射膜(5,14)。
4.权利要求1或2中所述的显示器装置,其中所述至少部分反射膜为允许显示器装置进行透反射操作的透反射膜(13,15)。
5.权利要求4中所述的显示器装置,还包括布置在液晶层的后侧上的后光学叠层(10),所述叠层包括一个或多个光学膜。
6.权利要求5中所述的显示器装置,其中所述后光学叠层包括后偏振器(12)和补偿膜(11),所述补偿膜(11)布置在后偏振器(12)和液晶单元(8)之间。
7.根据前述权利要求中任一项所述的显示器装置,其中所述至少部分反射膜(5,13)作为单元内部的内部反射器布置在所述前基板和后基板(3,4)之间。
8.根据前述权利要求中任一项所述的显示器装置,其中所述至少部分反射膜(14,15)布置在所述后光学叠层中,基本上同所述后基板(4)相邻。
CN200380106709XA 2002-12-19 2003-12-10 常白型超扭曲向列液晶显示器装置 Expired - Fee Related CN1729424B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02080370.6 2002-12-19
EP02080370 2002-12-19
PCT/IB2003/005959 WO2004057417A1 (en) 2002-12-19 2003-12-10 Normally white super twisted nematic liquid crystal display device

Publications (2)

Publication Number Publication Date
CN1729424A true CN1729424A (zh) 2006-02-01
CN1729424B CN1729424B (zh) 2010-05-12

Family

ID=32668757

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200380106709XA Expired - Fee Related CN1729424B (zh) 2002-12-19 2003-12-10 常白型超扭曲向列液晶显示器装置

Country Status (8)

Country Link
US (1) US20060103793A1 (zh)
EP (1) EP1576416A1 (zh)
JP (1) JP2006510943A (zh)
KR (1) KR20050085786A (zh)
CN (1) CN1729424B (zh)
AU (1) AU2003303268A1 (zh)
TW (1) TW200413783A (zh)
WO (1) WO2004057417A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102681256A (zh) * 2012-04-16 2012-09-19 鞍山亚世光电显示有限公司 一种低功耗电子价签液晶显示器及其制造工艺
CN102914894A (zh) * 2012-09-24 2013-02-06 亚世光电股份有限公司 一种可用于无背光源状态的负显液晶显示器

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0440412A (ja) * 1990-06-06 1992-02-10 Seiko Epson Corp 液晶表示素子
JPH0440411A (ja) * 1990-06-06 1992-02-10 Seiko Epson Corp 液晶表示素子
US5337408A (en) * 1991-08-09 1994-08-09 Vadem Corporation Multi-level display controller
JP3565521B2 (ja) * 1995-07-11 2004-09-15 シャープ株式会社 重合性化合物およびそれを用いた液晶表示素子
JP3676474B2 (ja) * 1996-01-09 2005-07-27 日東電工株式会社 光学フィルム及び液晶表示装置
JP2822983B2 (ja) * 1996-06-27 1998-11-11 日本電気株式会社 透過型液晶表示装置
DE69834252D1 (de) * 1997-07-10 2006-05-24 Citizen Watch Co Ltd Flüssigkristallanzeige
JP3807576B2 (ja) * 1998-01-28 2006-08-09 シャープ株式会社 重合性化合物、重合性樹脂材料組成物、重合硬化物及び液晶表示装置
KR100371936B1 (ko) * 1998-09-25 2003-02-14 시티즌 도케이 가부시키가이샤 액정표시장치
WO2000019267A1 (fr) * 1998-09-29 2000-04-06 Matsushita Electric Industrial Co., Ltd. Affichages a cristaux liquides reflechissants
JP2000137217A (ja) * 1998-11-02 2000-05-16 Hitachi Ltd 液晶パネルおよび液晶表示装置
JP2000241815A (ja) * 1999-02-23 2000-09-08 Citizen Watch Co Ltd 反射型液晶表示装置
JP3493321B2 (ja) * 1999-07-21 2004-02-03 シャープ株式会社 液晶表示装置
JP3726569B2 (ja) * 1999-07-26 2005-12-14 セイコーエプソン株式会社 半透過反射型及び反射型液晶装置並びにこれらを用いた電子機器
KR100679785B1 (ko) * 1999-09-13 2007-02-07 닛토덴코 가부시키가이샤 광학 보상 필름, 광학 보상 편광판 및 액정 디스플레이 장치
JP2001125105A (ja) * 1999-10-26 2001-05-11 Citizen Watch Co Ltd 反射型液晶表示装置
JP2001272666A (ja) * 2000-03-27 2001-10-05 Casio Comput Co Ltd 液晶表示装置
JP2001343527A (ja) * 2000-06-01 2001-12-14 Nitto Denko Corp 光学部材および液晶表示装置
WO2002017006A2 (en) * 2000-08-23 2002-02-28 Dejima Tech B.V. Single-polarizer, normally white reflective stn display
EP1279994A3 (en) * 2001-07-27 2003-10-01 Alps Electric Co., Ltd. Semitransparent reflective liquid-crystal display device
US20030086170A1 (en) * 2001-10-03 2003-05-08 Eiji Hamamoto Polarizing plate and a liquid crystal display using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102681256A (zh) * 2012-04-16 2012-09-19 鞍山亚世光电显示有限公司 一种低功耗电子价签液晶显示器及其制造工艺
CN102914894A (zh) * 2012-09-24 2013-02-06 亚世光电股份有限公司 一种可用于无背光源状态的负显液晶显示器
CN102914894B (zh) * 2012-09-24 2015-04-08 亚世光电股份有限公司 一种可用于无背光源状态的负显液晶显示器

Also Published As

Publication number Publication date
WO2004057417A1 (en) 2004-07-08
TW200413783A (en) 2004-08-01
EP1576416A1 (en) 2005-09-21
US20060103793A1 (en) 2006-05-18
AU2003303268A1 (en) 2004-07-14
KR20050085786A (ko) 2005-08-29
CN1729424B (zh) 2010-05-12
JP2006510943A (ja) 2006-03-30

Similar Documents

Publication Publication Date Title
KR100299894B1 (ko) 광보상기와광확산기를갖는광시야각액정표시장치
CN1284998C (zh) 透射-反射型液晶显示器件及其制造方法
EP2530514A1 (en) Display device comprising an optical film having a lens pattern
CN1834726A (zh) 抗反射偏光片及其应用
EP1276001A2 (en) Liquid crystal display having reflector outside liquid crystal cell
US20080136758A1 (en) Display device
KR20060052259A (ko) 액정 표시 장치
CN1228673C (zh) 反射显示器,光导向板和制造光导向板的方法
TWI304904B (zh)
CN100367092C (zh) 液晶装置和电子设备
US7570325B2 (en) Transflective type liquid crystal display
EP2400341B1 (en) Liquid crystal display device
KR100663850B1 (ko) 확산 반사판, 그 제조 방법 및 반사형 표시 장치
US20050179841A1 (en) Transmissive and reflective mode fringe field switching liquid crystal display
CN1499256A (zh) 液晶显示装置和电子设备
JP3879661B2 (ja) 液晶表示装置および電子機器
EP1091235A1 (en) Reflection liquid crystal display element
CN1672090A (zh) 透射反射式液晶显示器
US7443461B2 (en) Liquid crystal display device having a prism sheet between first and second light diffusion layers
CN1729424B (zh) 常白型超扭曲向列液晶显示器装置
CN1802597A (zh) 半透半反式液晶显示设备
CN1266526C (zh) 液晶显示器件和电子装置
JPH10123506A (ja) 液晶表示装置
CN1447154A (zh) 液晶显示装置
CN1932597A (zh) 半穿透反射式的液晶显示装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: TONGBAO HONG KONG CO., LTD.

Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Effective date: 20070323

C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20070323

Address after: Floor two, PHILPS tower, 5 East Science Avenue, Sha Tin, Hongkong Science Park, Hongkong

Applicant after: Tpo Hong Kong Holding Ltd.

Address before: Holland Ian Deho Finn

Applicant before: Koninklijke Philips Electronics N.V.

C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100512

Termination date: 20151210

EXPY Termination of patent right or utility model