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CN105116660A - Blue phase liquid crystal display panel - Google Patents

Blue phase liquid crystal display panel Download PDF

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Publication number
CN105116660A
CN105116660A CN201510526706.6A CN201510526706A CN105116660A CN 105116660 A CN105116660 A CN 105116660A CN 201510526706 A CN201510526706 A CN 201510526706A CN 105116660 A CN105116660 A CN 105116660A
Authority
CN
China
Prior art keywords
liquid crystal
phase liquid
glass substrate
blue
display panel
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.)
Pending
Application number
CN201510526706.6A
Other languages
Chinese (zh)
Inventor
唐先柱
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.)
InfoVision Optoelectronics Kunshan Co Ltd
Original Assignee
InfoVision Optoelectronics Kunshan Co Ltd
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 InfoVision Optoelectronics Kunshan Co Ltd filed Critical InfoVision Optoelectronics Kunshan Co Ltd
Priority to CN201510526706.6A priority Critical patent/CN105116660A/en
Publication of CN105116660A publication Critical patent/CN105116660A/en
Pending legal-status Critical Current

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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
    • G02F1/137Devices 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
    • 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
    • G02F1/13793Blue phases

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

Abstract

The invention provides a blue phase liquid crystal display panel which comprises an upper glass substrate, a lower glass substrate, electrodes, an upper polarizer, a lower polarizer and a blue phase liquid crystal layer. The upper glass substrate and the lower glass substrate are arranged in a vertically-spaced mode, and the multiple bar-shaped electrodes are arranged on the upper surface of the lower glass substrate and are arranged in a horizontally-spaced mode. The upper side of the upper glass substrate and the lower side of the lower glass substrate are provided with the upper polarizer and the lower polarizer respectively, and the blue phase liquid crystal layer is sandwiched between the upper glass substrate and the lower glass substrate. The blue phase liquid crystal display panel further comprises an absorption film layer which is arranged in the blue phase liquid crystal display panel or on the surface of the blue phase liquid crystal display panel. Due to the fact that the blue phase liquid crystal display panel comprises the absorption film layer, dark-state light leakage can be effectively relieved, the contrast ratio is increased, and the driving voltage cannot be too high.

Description

Blue-phase liquid crystal display panel
Technical field
The present invention relates to technical field of liquid crystal display, and in particular to a kind of blue-phase liquid crystal display panel.
Background technology
In recent years, in order to promote the display quality of display panels, the blue phase liquid crystal material with rapid answer characteristic comes into one's own gradually, wherein blue phase (BluePhase) is a kind of a kind of liquid crystal phase between isotropic phase and cholesteric phase, blue phase liquid crystal has following outstanding advantages compared with now widely used liquid crystal display liquid crystal material: the response time of (1) blue phase liquid crystal is within the scope of sub-millisecond, it is without the need to adopting overdrive technique (OverDrive), namely the high-speed driving of more than 240Hz can be realized, thus effectively can reduce the dynamic fuzzy of moving image, (2) blue phase liquid crystal does not need the necessary oriented layer of other various display mode, not only simplifies manufacturing process, also reduces cost, (3) blue phase liquid crystal is optically isotropic, thus blue phase liquid crystal display device is had visual angle is wide, dark-state is good feature, (4) as long as the thick penetration depth exceeding electric field of blue phase liquid crystal box box, the change that liquid crystal cell box is thick just can be ignored the impact of transmissivity, is suitable for manufacturing giant-screen or veneer liquid crystal indicator.
The refraction index changing of the transverse electric field initiation that blue phase liquid crystal utilizes electrode to produce itself, and then after making light penetration liquid crystal, produce the change of bright dark-state.Blue phase liquid crystal is not when adding transverse electric field, and its perfect condition has optics isotropy, and present dark-state.On the other hand, when additional transverse electric field is in blue phase liquid crystal, then blue phase liquid crystal has optical anisotropy, and therefore its refractive index can change, and makes light to penetrate blue phase liquid crystal and to present on state of.
In material behavior, the lattice period of blue phase liquid crystal is the function of visible wavelength, thus can produce optionally Bragg reflection (selectiveBraggreflection) to the visible ray of different wave length.That is, the material behavior of blue phase liquid crystal molecule itself has specific reflected waveband.The reflected waveband of blue phase liquid crystal molecule drops in the spectrum range of visible ray, and therefore, blue phase liquid crystal molecule just has the problem of dark-state light leak to produce on this reflected waveband.
At present, the components such as blue phase liquid crystal molecule and chiral agent are mainly comprised in blue phase liquid crystal layer, contrast is increased in order to reduce light leak, blue phase liquid crystal layer at present for display is added with high concentration chiral agent, after with the addition of high concentration chiral agent, the reflected waveband of blue phase liquid crystal layer has been made to be moved to ultraviolet ray range by visible-range and fall ultraviolet ray range.But, according to Kerr effect add high concentration chiral agent, adjustable pitch P reduces, and it also will cause the driving voltage needed for blue phase liquid crystal layer to increase.
Summary of the invention
In view of above-mentioned condition, be necessary to provide a kind of structure simple, can effectively improved dark state light leak, raising contrast, and the blue-phase liquid crystal display panel that driving voltage can not be caused too high, to solve the problem of prior art deficiency.
The invention provides a kind of blue-phase liquid crystal display panel, comprise top glass substrate, lower glass substrate, electrode, upper polaroid, lower polaroid, and blue phase liquid crystal layer, described top glass substrate and described lower glass substrate are between the upper and lower every setting, the upper surface of described lower glass substrate is provided with described strip shaped electric poles, described strip shaped electric poles is that multiple horizontal interval is arranged, the downside of the upside of described top glass substrate and described lower glass substrate be respectively arranged with described on polaroid and described lower polaroid, described blue phase liquid crystal layer is located between described top glass substrate and described lower glass substrate, also comprise absorbing membranous layer, described absorbing membranous layer, be arranged at inside or the surface of described blue-phase liquid crystal display panel.
Further, described absorbing membranous layer is arranged between described top glass substrate and described blue phase liquid crystal layer.
Further, described absorbing membranous layer is arranged between described lower glass substrate and described blue phase liquid crystal layer, and described strip shaped electric poles horizontal interval is arranged at described absorbing membranous layer ' upper surface.
Further, described absorbing membranous layer is arranged at the upper surface of described upper polaroid.
Further, described absorbing membranous layer is arranged at the lower surface of described lower polaroid.
Further, described strip shaped electric poles is the electrode that transparent material is made.
Further, described blue phase liquid crystal layer comprises blue phase liquid crystal molecule and chiral agent, and described blue phase liquid crystal molecule is uniformly distributed in described chiral agent.
Further, described absorbing membranous layer adopts the material with a certain wavelength of selective absorbing to make.
Further, the material described in a certain wavelength of selective absorbing contains chromophore.
As mentioned above, the beneficial effect that the technical scheme of the embodiment of the present invention is brought is: blue-phase liquid crystal display panel of the present invention, and owing to comprising absorbing membranous layer, it can effective improved dark state light leak, improves contrast, and driving voltage can not be caused too high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the blue-phase liquid crystal display panel of the first embodiment of the present invention.
Fig. 2 is the structural representation of the blue-phase liquid crystal display panel of the second embodiment of the present invention.
Fig. 3 is the structural representation of the blue-phase liquid crystal display panel of the third embodiment of the present invention.
Fig. 4 is the structural representation of the blue-phase liquid crystal display panel of the fourth embodiment of the present invention.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to the specific embodiment of the present invention, structure, feature and effect thereof, be described in detail as follows.
Fig. 1 is the structural representation of the blue-phase liquid crystal display panel of the first embodiment of the present invention, refer to Fig. 1, the blue-phase liquid crystal display panel 100 of the embodiment of the present invention, comprises top glass substrate 11, lower glass substrate 12, strip shaped electric poles 13, upper polaroid 14, lower polaroid 15, blue phase liquid crystal layer 16 and absorbing membranous layer 18.
Top glass substrate 11 and lower glass substrate about 12 parallel interval are arranged, lower glass substrate 12 upper surface is provided with strip shaped electric poles 13, strip shaped electric poles 13 is that multiple horizontal interval is arranged, strip shaped electric poles 13 adopts transparent material to make, polaroid 14 and lower polaroid 15 is respectively arranged with in the downside of the upside of top glass substrate 11 and lower glass substrate 12, blue phase liquid crystal layer 16 is located between top glass substrate 11 and lower glass substrate 12, blue phase liquid crystal layer 16 comprises blue phase liquid crystal molecule 1 62 and chiral agent 164, blue phase liquid crystal molecule 1 62 is uniformly distributed in chiral agent 164, the concentration of chiral agent 164 can adjust as required.Absorbing membranous layer 18 is provided with between the downside of top glass substrate 11 and blue phase liquid crystal layer 16, absorbing membranous layer 18 generally coating is fixed on the lower surface of top glass substrate 11, absorbing membranous layer 18 adopts the material with a certain wavelength of selective absorbing to make, the material with a certain wavelength of selective absorbing contains chromophore, chromophore can produce a certain specific wavelength of 200 ~ 800nm wavelength coverage and absorb, and chromophore is selected according to concrete demand.By adjusting the concentration of the chiral agent 164 of blue phase liquid crystal layer 16, changing pitch P, making this wavelength and Bragg reflection optical consistent wavelength, thus obtain the dark-state of low-light level, improve contrast.
Fig. 2 is the structural representation of the blue-phase liquid crystal display panel of the second embodiment of the present invention, refer to Fig. 2, the blue-phase liquid crystal display panel 100 that another embodiment of the present invention provides and the difference of previous embodiment are: absorbing membranous layer 18 ' is arranged between lower glass substrate 12 and blue phase liquid crystal layer 16, and strip shaped electric poles 13 horizontal interval is arranged at the upper surface of absorbing membranous layer 18 ', because strip shaped electric poles 13 adopts transparent material to make, therefore strip shaped electric poles 13 can not stop that the irradiation of light and absorbing membranous layer 18 ' absorb.Absorbing membranous layer 18 ' is generally coated on the upper surface of lower glass substrate 12.
Fig. 3 is the structural representation of the blue-phase liquid crystal display panel of the third embodiment of the present invention, refer to Fig. 3, blue-phase liquid crystal display panel that the third embodiment of the present invention provides 100 is with the difference of previous embodiment: absorbing membranous layer 18 " be arranged at the upper surface of polaroid 14, absorbing membranous layer 18 " be coated on polaroid 14 upper surface and form composite membrane.
Fig. 4 is the structural representation of the blue-phase liquid crystal display panel of the fourth embodiment of the present invention, refer to Fig. 3, blue-phase liquid crystal display panel that the fourth embodiment of the present invention provides 100 is with the difference of previous embodiment: absorbing membranous layer 18 " ' be arranged at the lower surface of lower polaroid 15, absorbing membranous layer 18 " ' be coated on lower polaroid 15 lower surface and form composite membrane.
As mentioned above, the beneficial effect that the technical scheme of the embodiment of the present invention is brought is: blue-phase liquid crystal display panel 100 of the present invention, owing to comprising absorbing membranous layer 18,18 ', 18 ", 18 " ', it can effective improved dark state light leak, improve contrast, and driving voltage can not be caused too high.
In the present invention, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, except comprising those listed key elements, but also can comprise other key elements clearly do not listed.
In the present invention, the involved noun of locality such as forward and backward, upper and lower is arranged in figure with parts in accompanying drawing and parts position each other defines, clear and convenient just in order to expression technology scheme.Should be appreciated that the use of the described noun of locality should not limit the scope of the application's request protection.
When not conflicting, the feature in the present invention in above-described embodiment and embodiment can be combined with each other.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. a blue-phase liquid crystal display panel (100), comprise top glass substrate (11), lower glass substrate (12), electrode (13), upper polaroid (14), lower polaroid (15), and blue phase liquid crystal layer (16), described top glass substrate (11) and described lower glass substrate (12) are between the upper and lower every setting, the upper surface of described lower glass substrate (12) is provided with described strip shaped electric poles (13), described strip shaped electric poles (13) is arranged for multiple horizontal interval, described upper polaroid (14) and described lower polaroid (15) is respectively arranged with in the downside of the upside of described top glass substrate (11) and described lower glass substrate (12), described blue phase liquid crystal layer (16) is located between described top glass substrate (11) and described lower glass substrate (12), it is characterized in that: also comprise absorbing membranous layer (18), described absorbing membranous layer (18, 18 ', 18 ", 18 " inside or the surface of described blue-phase liquid crystal display panel (100) ') is arranged at.
2. blue-phase liquid crystal display panel (100) as claimed in claim 1, is characterized in that: described absorbing membranous layer (18) is arranged between described top glass substrate (11) and described blue phase liquid crystal layer (16).
3. blue-phase liquid crystal display panel (100) as claimed in claim 1, it is characterized in that: described absorbing membranous layer (18 ') is arranged between described lower glass substrate (12) and described blue phase liquid crystal layer (16), and described strip shaped electric poles (13) horizontal interval is arranged at the upper surface of described absorbing membranous layer (18 ').
4. blue-phase liquid crystal display panel (100) as claimed in claim 1, is characterized in that: described absorbing membranous layer (18 ") is arranged at the upper surface of described upper polaroid (14).
5. blue-phase liquid crystal display panel (100) as claimed in claim 1, is characterized in that: described absorbing membranous layer (18 " ') is arranged at the lower surface of described lower polaroid (15).
6. blue-phase liquid crystal display panel (100) as claimed in claim 1, is characterized in that: the electrode that described strip shaped electric poles (13) is made for transparent material.
7. blue-phase liquid crystal display panel (100) as claimed in claim 1, it is characterized in that: described blue phase liquid crystal layer (16) comprises blue phase liquid crystal molecule (162) and chiral agent (164), described blue phase liquid crystal molecule (162) is uniformly distributed in described chiral agent (164).
8. blue-phase liquid crystal display panel (100) as claimed in claim 7, is characterized in that: described absorbing membranous layer adopts the material with a certain wavelength of selective absorbing to make.
9. blue-phase liquid crystal display panel (100) as claimed in claim 8, is characterized in that: described in there is a certain wavelength of selective absorbing material contain chromophore.
CN201510526706.6A 2015-08-25 2015-08-25 Blue phase liquid crystal display panel Pending CN105116660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510526706.6A CN105116660A (en) 2015-08-25 2015-08-25 Blue phase liquid crystal display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510526706.6A CN105116660A (en) 2015-08-25 2015-08-25 Blue phase liquid crystal display panel

Publications (1)

Publication Number Publication Date
CN105116660A true CN105116660A (en) 2015-12-02

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CN201510526706.6A Pending CN105116660A (en) 2015-08-25 2015-08-25 Blue phase liquid crystal display panel

Country Status (1)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1934222A (en) * 2004-01-30 2007-03-21 陶氏康宁公司 liquid crystal material
US20070081107A1 (en) * 2003-11-05 2007-04-12 Koninklijke Philips Electronics N.V. Active matrix display device and method of producing the same
KR20120075043A (en) * 2010-12-28 2012-07-06 엘지디스플레이 주식회사 Display module and display device having the same
CN103376590A (en) * 2012-04-24 2013-10-30 群康科技(深圳)有限公司 Display device
CN103543552A (en) * 2012-07-10 2014-01-29 群康科技(深圳)有限公司 Liquid crystal display panel, driving method thereof and liquid crystal displayer with liquid crystal display panel
CN104570519A (en) * 2014-12-05 2015-04-29 友达光电股份有限公司 Display panel and method for manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070081107A1 (en) * 2003-11-05 2007-04-12 Koninklijke Philips Electronics N.V. Active matrix display device and method of producing the same
CN1934222A (en) * 2004-01-30 2007-03-21 陶氏康宁公司 liquid crystal material
KR20120075043A (en) * 2010-12-28 2012-07-06 엘지디스플레이 주식회사 Display module and display device having the same
CN103376590A (en) * 2012-04-24 2013-10-30 群康科技(深圳)有限公司 Display device
CN103543552A (en) * 2012-07-10 2014-01-29 群康科技(深圳)有限公司 Liquid crystal display panel, driving method thereof and liquid crystal displayer with liquid crystal display panel
CN104570519A (en) * 2014-12-05 2015-04-29 友达光电股份有限公司 Display panel and method for manufacturing the same

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Application publication date: 20151202