CN110133904A - Multi-steady state liquid crystal display part, preparation method and driving method - Google Patents

Multi-steady state liquid crystal display part, preparation method and driving method Download PDF

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Publication number
CN110133904A
CN110133904A CN201910458897.5A CN201910458897A CN110133904A CN 110133904 A CN110133904 A CN 110133904A CN 201910458897 A CN201910458897 A CN 201910458897A CN 110133904 A CN110133904 A CN 110133904A
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liquid crystal
primary color
color pixels
electrode
pixel
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王叶通
李常良
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Shenzhen Photosynthetic Display Technology Co Ltd
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Shenzhen Photosynthetic Display Technology Co Ltd
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Priority to CN201910458897.5A priority Critical patent/CN110133904A/en
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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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13718—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 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 a change of the texture state of a cholesteric liquid crystal
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode

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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)
  • Mathematical Physics (AREA)
  • Dispersion Chemistry (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention belongs to field of display technology, a kind of multi-steady state liquid crystal display part, preparation method and driving method are provided, comprising: first substrate, inside have first electrode layer, and first electrode layer includes several first electrode patterns；The second substrate, inside have the second electrode lay, and the second electrode lay includes several second electrode patterns；The liquid crystal layer being sealed between first substrate and the second substrate；Wherein, the face part of several first electrode patterns and several second electrode patterns constitutes several pixel units, each pixel unit includes multiple primary colors pixel, corresponding LCD segment has different screw pitch to different primary color pixels in the liquid crystal layer, and the LCD segment of each primary color pixels is enabled to reflect the light of corresponding wavelength.The present invention can realize full-color display for each pixel unit, under the premise of keeping the low-power consumption of multi-steady state liquid crystal display part, the color gamut of multi-steady state liquid crystal display part be extended, contrast and brightness are also improved.

Description

Multi-steady state liquid crystal display part, preparation method and driving method
Technical field
The invention belongs to display technology field more particularly to a kind of multi-steady state liquid crystal display parts, preparation method and drive Dynamic method.
Background technique
Liquid crystal display is at present throughout each life, industrial circle, wherein real-time driving in need and cooperating backlight The liquid crystal display shown, the multi-steady state liquid crystal display that also reliable environment light is shown.
The advantages of multi-steady state liquid crystal display, is to show that content shines independent of device itself, but relies on environment light It is shown, basic displaying principle is that liquid crystal corresponding to need pixel to be shown is that (this state can disappear a state Light), being not required to liquid crystal corresponding to pixel to be shown is another state (this attitudinal reflexes light), both states are all steady Stationary state, that is, after not needing power down, state can continue to be kept for the time more than some months.The power consumption of this device is mainly used In the refresh activity for changing device display state, just do not consume energy after device has refreshed, so the power consumption of this display technology It is especially low.
But the color that this multi-steady state liquid crystal display part can be shown is relatively simple, generally there was only monochrome in each stable state It has been shown that, such as it is only able to display black/yellow, one of stable state is display black, another stable state is display yellow, is not accomplished Show black and yellow simultaneously, or be only able to display blue/white etc., one of stable state be displayed in blue, another stable state is It is displayed in white, does not also accomplish to be displayed in blue simultaneously and white, so display effect is restricted.
Summary of the invention
Problem to be solved of the embodiment of the present invention is how to realize that coloury multistable state liquid srystal is shown, while can show Show multiple color, promotes display effect.
In order to solve the above technical problems, in a first aspect, the embodiment of the invention provides a kind of multi-steady state liquid crystal display part, Include:
First substrate, inside have first electrode layer, and the first electrode layer includes several first electrode patterns；
The second substrate, inside have the second electrode lay, and the second electrode lay includes several second electrode patterns；
The liquid crystal layer being sealed between the first substrate and the second substrate；
Wherein, the face part of several first electrode patterns and several second electrode patterns constitutes several pixels Unit, each pixel unit include multiple primary colors pixel；
Different primary color pixels LCD segment corresponding in the liquid crystal layer has different screw pitch, so that each The LCD segment of primary color pixels can reflect the light of corresponding wavelength.
Second aspect, the embodiment of the invention also provides a kind of preparation methods of multi-steady state liquid crystal display part, including under State step:
Make a liquid crystal sylphon；The liquid crystal sylphon includes that inside has the first substrate of first electrode layer, inside has The second substrate of the second electrode lay, the first electrode layer include several first electrode patterns, and the second electrode lay includes There are several second electrode patterns；If the face part of several first electrode patterns and several second electrode patterns is constituted Dry pixel unit, each pixel unit include multiple primary colors pixel；
Liquid crystal containing the polymer that polymerization reaction can occurs under action of ultraviolet light is injected into the liquid crystal sylphon simultaneously Sealing, obtains liquid crystal cell；
For each primary color pixels, cover the liquid crystal cell using mask plate corresponding with the primary color pixels, then with Illumination parameter corresponding with the primary color pixels carries out ultraviolet light, until LCD segment corresponding to all primary color pixels is equal Illuminated mistake, so that forming different primary color pixels LCD segment corresponding in the liquid crystal layer has different screw pitch.
The third aspect, the embodiment of the invention also provides a kind of driving methods of multi-steady state liquid crystal display part, including under State step:
Preparation stage: all pixels in the preselected area of multi-steady state liquid crystal display part described in the first high voltage drive are utilized All primary color pixels in unit make all liquid crystal molecules that complete homeotropic state be presented；
Choice phase: target primary color pixels are driven using first choice voltage, so that liquid corresponding to target primary color pixels Brilliant part remains homeotropic state；Non-targeted primary color pixels are driven using the second selection voltage, so that non-targeted primary colours picture LCD segment corresponding to element is from homeotropic state to flat state relaxation；
Evolving stage: target primary color pixels and non-targeted primary color pixels are driven simultaneously using voltage is developed, so that target base LCD segment corresponding to color pixel continues to remain homeotropic state, so that liquid crystal portion corresponding to non-targeted primary color pixels Divide to flat state relaxation and is changed into Focal conic state；
It removes evolving stage: persistently driving target primary color pixels and non-targeted primary color pixels preset time period using differentiation voltage Afterwards, the differentiation voltage is removed, so that target primary color pixels are first to the flat state relaxation of screw pitch variation, then again to more stable Flat state relaxation so that non-targeted primary color pixels remain Focal conic state；
Wherein, the first high voltage > differentiation voltage > first choice voltage > second selection voltage.
The embodiment of the present invention is by being arranged multiple primary colors pixel, and the liquid of each primary color pixels for each pixel unit Brilliant part can reflect the light of corresponding wavelength, therefore can realize full-color display for each pixel unit, keep multistable Under the premise of state liquid crystal display device low-power consumption, the color gamut of multi-steady state liquid crystal display part is extended, to make The color for obtaining multi-steady state liquid crystal display part becomes abundant, and contrast and brightness are also improved, comprehensive to improve display Effect.
Detailed description of the invention
Fig. 1 is the sectional view for the multi-steady state liquid crystal display part that first embodiment of the invention provides；
Fig. 2 is the design drawing for the first electrode pattern that first embodiment of the invention provides；
Fig. 3 is the design drawing for the second electrode pattern that first embodiment of the invention provides；
Fig. 4 is the schematic diagram for the pixel unit that first embodiment of the invention provides；
Fig. 5 is the multiple primary colors pixel design drawing for the pixel unit that first embodiment of the invention provides；
Fig. 6 is a kind of schematic diagram of the screw pitch for primary color pixels that first embodiment of the invention provides；
Fig. 7 is the schematic diagram of the screw pitch for another primary color pixels that first embodiment of the invention provides；
Fig. 8 is the flow chart of the preparation method for the multi-steady state liquid crystal display part that second embodiment of the invention provides；
Fig. 9 is the outline drawing for the liquid crystal sylphon that second embodiment of the invention provides；
Figure 10 is the schematic diagram for the formation red pixel screw pitch that second embodiment of the invention provides；
Figure 11 is the schematic diagram for the formation green pixel screw pitch that second embodiment of the invention provides；
Figure 12 is the schematic diagram for the formation blue pixel screw pitch that second embodiment of the invention provides；
Figure 13 A is the planar texture figure for the cholesteric liquid crystal that third embodiment of the invention provides；
Figure 13 B is the Focal conic state texture pattern for the cholesteric liquid crystal that third embodiment of the invention provides；
Figure 13 C is the homeotropic state schematic diagram for the cholesteric liquid crystal that third embodiment of the invention provides；
Figure 14 is the flow chart for the driving method that third embodiment of the invention provides；
Figure 15 is the drive waveforms figure that third embodiment of the invention provides；
Figure 16 is the detail flowchart for the driving method that third embodiment of the invention provides.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
First embodiment of the invention provides a kind of multi-steady state liquid crystal display part, and Fig. 1 is the multistable display device Sectional view, including first substrate 101, the second substrate 107 and the liquid being sealed between first substrate 101 and the second substrate 107 Crystal layer 104 can specifically use epoxy glue seal.Have first electrode layer 102, the second substrate 107 in the inside of first substrate 101 Inside have the second electrode lay 106, first alignment layer can also be set between liquid crystal layer 104 and first electrode layer 102 103, second orientation layer 105, first alignment layer 103 and second orientation layer are set between liquid crystal layer 104 and the second electrode lay 106 Friction has groove on 105, to realize the anchoring to liquid crystal molecule.
First substrate 101 and the second substrate 107 can be flexible material, can also use rigid material, such as glass, the One electrode layer 102 and the second electrode lay 106 are conductive layer, for example, when first substrate 101 is glass, first electrode layer 102 can be with For ITO (tin indium oxide) layer being attached on glass.Further, some light can also be set in the outside of first substrate 101 Functional layer, such as anti-reflection layer, anti-dazzle photosphere are learned, anti-scratch protective layer can be set, also to protect to first substrate 101 Shield.The multi-steady state liquid crystal display part can also include reflecting layer 108, and reflecting layer 108 can be set in the outer of the second substrate 107 Side, can also be between liquid crystal layer 104 and the second electrode lay 106.
Furthermore it is also possible to which silicon dioxide layer is arranged between first electrode layer 102 and first alignment layer 103, both can be used as It for improving the functional material of optical effect, and can be used as improving the functional material of device electrology characteristic, prevent first Short circuit between electrode layer 102 and the second electrode lay 106.
Furthermore it is also possible to which spray sets some spacer particles (Spacer) between first alignment layer 103 and second orientation layer 105 Equal materials, play a supporting role, keep the thickness of entire liquid crystal layer 104 more uniform.
First electrode layer 102 is equipped with several first electrode patterns, and the second electrode lay 106 is equipped with several second electrode figures Case, for example, Fig. 2 is the shape for being illustrated first electrode pattern with longitudinal strip electrode pattern PV, each strip electrode Pattern P V in the horizontal direction on be sequentially arranged, Fig. 3 is to be illustrated second electrode pattern with lateral strip electrode pattern PL Shape, each strip electrode pattern PL along the vertical direction on be sequentially arranged, as shown in figure 4, electrode pattern PV and electrode pattern The face part of PL constitutes several pixel unit P, and the switch state by controlling each pixel unit P can be realized image and show.
It should be appreciated that first electrode pattern can also be using lateral strip electrode pattern PL shown in Fig. 3, the second electricity Pole figure case can also use longitudinal strip electrode pattern PV shown in Fig. 2, although also, Fig. 2 and Fig. 3 by taking strip as an example It shows electrode pattern, can also be other various shapes according to specific requirements flexible design when actual implementation.
As shown in Fig. 2, including multiple sub-electrode pattern R, G, B in electrode pattern PV, respectively as being used to form R (red) G The face part of the pattern of (green) B (indigo plant) three primary colours pixel, sub-electrode pattern R and electrode pattern PL constitute red pixel PR, son The face part of electrode pattern G and electrode pattern PL constitutes green pixel PG, the facing portion of sub-electrode pattern B and electrode pattern PL Point constitute blue pixel PB, that is, as shown in figure 5, each pixel unit P includes multiple primary colors pixel again, such as red pixel PR, green Color pixel PG, blue pixel PB etc..It should be noted that Fig. 2, Fig. 4, Fig. 5 are only to be illustrated pixel with red-green-blue The type of primary color pixels included by unit P, primary color pixels can also be other types, such as two primary colours or four when specific implementation Primary colours etc..
Contain polymer network structure in liquid crystal layer 104, due to polymer network structure to liquid crystal molecule have anchoring and The effect of isolation, every kind of primary color pixels all correspond to certain screw pitch, so as to control liquid crystal corresponding to different base colors pixel Part can reflect the light of different wave length.As shown in fig. 6, having red pixel PR, green pixel PG, blue in first electrode layer 102 These three primary color pixels of pixel PB, the screw pitch of the corresponding LCD segment of red pixel PR are S1, the corresponding liquid crystal of green pixel PG Partial screw pitch is S2, and the screw pitch of the corresponding LCD segment of blue pixel PG is S3, wherein red pixel PR can reflect feux rouges, Green pixel PG can reflect green light, blue pixel PG can reflect blue light.
Again since each pixel unit P includes multiple primary color pixels, can by the colour mixture principle of colorimetry come Different color displays are realized, for example, closing green pixel PG and blue pixel PB, then the pixel when opening red pixel PR Unit P can be shown in red, can similarly show turquoise two kinds of colors respectively；When opening simultaneously red pixel PR and green pixel PG, blue pixel PB is closed, then pixel unit P can be shown as yellow, similarly, when opening simultaneously green pixel PG and blue picture Plain PB, red pixel PR is closed, then pixel unit P can be shown as cyan, when opening simultaneously red pixel PR and blue pixel PB, green pixel PG is closed, then pixel unit P can be shown as carmetta；When opening simultaneously red pixel PR, green pixel PG When with blue pixel PB, it can be shown as white, constantly may be used when simultaneously closing off red pixel PR, green pixel PG and blue pixel PB It is shown as black.As it can be seen that red, green, blue, Huang, blueness, fuchsin, white, black totally eight kinds of colors may be implemented in pixel unit shown in fig. 6 It has been shown that, power saving than traditional LCD/OLED display, and meanwhile it is abundanter than traditional bistable display color.
Further, electrode corresponding to each primary color pixels can also be finely divided again, to improve more advanced colour It has been shown that, as shown in fig. 7, each primary color pixels in first electrode layer 102 are corresponding with multiple electrodes, such as red pixel PR Tetra- electrodes of PR1, PR2, PR3, PR4 are corresponding with, green pixel PG is corresponding with tetra- electrodes of PG1, PG2, PG3, PG4, blue picture Plain PG is corresponding with tetra- electrodes of PB1, PB2, PB3, PB4, controls the achievable control to affiliated primary color pixels of each electrode, Some or all of such as corresponding red pixel PR, can choose in driving tetra- electrodes of PR1, PR2, PR3, PR4, green pixel PG, blue pixel PB are same.After electrode corresponding to each primary color pixels to be carried out to division as shown in Figure 7, Mei Geji Color pixel can have 4 grayscale, therefore 4*4*4=64 grades of color displays may be implemented altogether in RGB three primary colours.If by each primary colours Electrode corresponding to pixel is further divided into 8 grayscale, therefore 8*8*8=512 grades of colors may be implemented altogether in RGB three primary colours Colour display screen shows, and it is possible to select which electrode for driving each primary color pixels to realize different display effects, such as works as needs When two electrodes of selection driving red pixel PR, it can be electrode PR1 and PR2, be also possible to PR1 and PR4, what the former showed Pixel granular sensation is lower, and the pixel granular sensation that the latter shows is heavier.
As described above, contain polymer network structure in liquid crystal layer 104, which can be in liquid crystal It mixes suitable polymer and cooperates with different ultraviolet light technique, form corresponding polymer on various primary color pixels Network, it is different so as to control the reflected light wavelength of liquid crystal since polymer network has anchoring effect to liquid crystal molecule Wavelength corresponds to different primary color pixels.Specifically, include liquid crystal in liquid crystal layer 104 and can occur under action of ultraviolet light poly- The polymer of reaction is closed, wherein liquid crystal mixes with polymer, and the mass ratio of liquid crystal and polymer is (100-70): (0-30)；Institute State the photoinitiator that polymer includes the oligomer of 93 mass parts, the diluent of 5 mass parts and 2 mass parts.
For liquid crystal, according to liquid crystal physics principle, the arrangement of liquid crystal molecule is by boundary condition, liquid crystalline phase and condition of external field It influences, the arranged distribution of liquid crystal molecule is an important factor for determining liquid crystal display form again, and the liquid crystal that the present embodiment uses can To be nematic liquid crystal, cholesteric liquid crystal, smectic liquid crystal, mainly energy liquid crystal itself can be influenced liquid crystal molecule by polymer network It can be orientated with polymer network, preferably cholesteric liquid crystal, the chiral agent in polymer network and cholesteric liquid crystal Under collective effect, so that every kind of primary color pixels all correspond to certain screw pitch.Hereafter illustrate liquid crystal by taking cholesteric liquid crystal as an example Selection process is generally obtained by the way that chiral agent is added in nematic liquid crystal.
Firstly, the selection of nematic liquid crystal: the present embodiment is advisable with the liquid crystal of high Δ n, high Δ ε, low melting point, low viscosity, Since the electro-optical characteristic of liquid crystal monomer is difficult to meet whole requirements of display liquid crystal, the liquid crystal of actual use is all same It is mixed in the liquid-crystal compounds of serial or close series, makes each electro-optical parameters close to proportion target using Adding law.This Embodiment select liquid crystal based on more aromatic ring class liquid crystal, tolane liquid crystal, polyacetylene liquid crystal etc., with 5CB, 7CB, The mixing such as PTP-5O2, such as aromatic ring class liquid crystal more than 22.14 parts is taken, 17.93 parts of tolane liquid crystals, 40.55 parts of polyacetylene liquid Crystalline substance, 3.00 parts of 5CB, 9.31 parts of 7CB, 7.07 parts of PTP-5O2 are sufficiently mixed for use, and mixed liquid crystal is referred to as mixed to list liquid crystal Close object 1.The molecular formula described above for stating liquid crystal is as follows:
Secondly, the selection of chiral agent: chiral agent used in the present embodiment, it can preferred temperature-resistant chiral agent For reducing the influence of device temperature drift, the display effect of optimised devices at different temperatures, or can be special using temperature simultaneously Property opposite two kinds of chiral agents, HTP (distortional ability) value of one of chiral agent increases with temperature and is increased, another chiral The HTP value of agent increases with temperature and is reduced, and is used in mixed way the influence that can eliminate chiral agent to temperature.It is selected in the present embodiment Chiral agent is R1011 and CB15, and R1011 chiral agent optical direction is dextrorotation, and HTP value is that 28.2 μm -1, HTP rises with temperature And it increases；CB15 optical direction be it is left-handed, HTP value be 7.9 μm -1, HTP with temperature rise and reduce.
It is reflected according to Bragg, the central wavelength lambda 0=n*p of device reflection, wherein n is the mean refraction of liquid crystal compound Rate, p are the screw pitch of liquid crystal compound.The relationship of liquid crystal compound screw pitch p and chiral agent are as follows:
P=1/ (HTP*Xc), Xc are the molar concentration of chiral agent
The screw pitch of cholesteric liquid crystal can be controlled in long wavelength's stage in configuration phase by adjusting the deal of chiral agent 300~850nm, such as can be 700nm.
Finally, the mixing of nematic liquid crystal and chiral agent:In the present embodiment, 5 deal R1011 are taken, 13 deal CB15 is taken, takes 82 deals to list liquid crystal compound 1, be sufficiently mixed uniformly stand-by, obtain cholesteric liquid crystal mixture.
For polymer, oligomer in the present embodiment optical effect final to device is had a major impact, wherein oligomeric Object can quickly form the main body of polymer network under ultraviolet light, which has stronger anchoring to act on liquid crystal molecule, main The formation speed of body, concentration in liquid crystal compound etc. can all influence the size of liquid crystal screw pitch, to influence the reflection of pixel Wavelength and color effects.
Preferred oligomer should have liquid crystal liquid crystal property, can have good intermiscibility, such as double methacrylate class with liquid crystal Monomer or bis-epoxy alkanes monomer, the present embodiment use 2- methyl -2- acrylic acid -1,2- glycol ester, methacrylic acid -2- hydroxyl Base propyl ester, methylhexyl methanol, photoinitiator use 1- hydroxycyclohexyl phenyl ketone, and molecular formula is as follows:
For example, oligomer may include 2- methyl -2- acrylic acid -1, the 2- glycol ester and 28 mass parts of 65 mass parts Methacrylic acid -2- hydroxy propyl ester；The diluent is methylhexyl methanol；The photoinitiator is 1- hydroxycyclohexylphenyl Ketone.
First embodiment of the invention be can be seen that by the way that multiple primary colors pixel is arranged in each pixel unit, and each The LCD segment of kind primary color pixels can reflect the light of corresponding wavelength, therefore each pixel unit can be realized full-color aobvious Show, under the premise of keeping the low-power consumption of multi-steady state liquid crystal display part, the color gamut of multi-steady state liquid crystal display part is carried out Extension, so that the color of multi-steady state liquid crystal display part becomes abundant, contrast and brightness are also improved, Quan Fang Position improves display effect.
Second embodiment of the invention additionally provides a kind of preparation method of multi-steady state liquid crystal display part, as shown in figure 8, packet Include following step:
Step S801 makes a liquid crystal sylphon.
The liquid crystal sylphon has the design of structure described in first embodiment, it may for example comprise has first electrode layer in inside First substrate, inside have the second electrode lay the second substrate, the first electrode layer includes several first electrode patterns, The second electrode lay includes several second electrode patterns；Several first electrode patterns and several second electrode figures The face part of case constitutes several pixel units, and each pixel unit includes multiple primary colors pixel.
Further, each primary color pixels is corresponding in the first electrode pattern or the second electrode pattern Multiple electrodes, by controlling the achievable control to affiliated primary color pixels of each electrode.
The shape of the liquid crystal sylphon as shown in figure 9, the liquid crystal sylphon generally can there are a liquid feeding mouths, to facilitate subsequent filling Liquid.
Step S802, liquid filling.Liquid crystal containing the polymer that polymerization reaction can occurs under action of ultraviolet light is injected into The liquid crystal sylphon simultaneously seals, and obtains liquid crystal cell.
As in the first embodiment, liquid crystal layer includes liquid crystal and can occur polymerization reaction under action of ultraviolet light Polymer, the liquid crystal mix with the polymer；The mass ratio of the liquid crystal and the polymer is (100-70): (0- 30)；The polymer includes the photoinitiator of the oligomer of 93 mass parts, the diluent of 5 mass parts and 2 mass parts.Liquid filling mistake Journey is as follows:
Take 65 parts of 2- methyl -2- acrylic acid -1,2- glycol esters, 28 parts of methacrylic acid -2- hydroxy propyl esters, 5 parts of methyl Hexyl methanol, 2 parts of 1- hydroxycyclohexyl phenyl ketones are sufficiently mixed uniformly for use, and mixed liquor is referred to as polymeric blends.
By 92 parts of cholesteric liquid crystal mixtures (such as cholesteric liquid crystal mixture in first embodiment) and 8 parts of polymer Mixture is sufficiently mixed uniformly for use, and mixed liquor is referred to as cholesteric liquid crystal polymeric blends, and mixture is passed through liquid feeding mouth It is circulated into liquid crystal sylphon, then again seals liquid feeding mouth.
In the present embodiment, the illumination of ultraviolet light is important process control condition, understands the final of decisive influence device Production and performance, therefore need to carry out under yellow light environment in the polymer formulators stage.
Step S803 forms the screw pitch of each primary color pixels.For each primary color pixels, using corresponding with the primary color pixels Mask plate cover the liquid crystal cell, ultraviolet light is then carried out with illumination parameter corresponding with the primary color pixels, until institute The illuminated mistake of LCD segment corresponding to some primary color pixels, to form different primary color pixels institute in the liquid crystal layer Corresponding LCD segment has different screw pitch.
Cardinal principle is to carry out exposure mask with different photolithography plates, and carry out curing reaction by ultraviolet lighting.Pass through difference Illumination condition (different wave length, different light intensity, differential responses time), the degree of polymer reaction will form difference.Such as:
The formation of red pixel screw pitch: the ultraviolet light progress illumination of selection 340nm wavelength, intensity of illumination 3mW/cm2, such as Shown in Figure 10, it is masked and is irradiated 5 minutes using red pixel mask version, cholesteric liquid crystal polymeric blends are ultraviolet at this time It is reacted under light, gradually mutually separation forms polymer network to polymer, becomes one by the polymer network that backbone constituents are formed Boundary condition of the upper and lower level of each and every one liquid crystal farmland, the liquid crystal farmland and liquid crystal cell as liquid crystal molecule can have liquid crystal molecule strong The spiral micro-structure that screw pitch is 680nm is collectively formed in conjunction with chiral agent in anchoring effect.
The formation of green pixel screw pitch: as shown in figure 11, after the screw pitch of red pixel is formed, changing green pixel mask, and Using the ultraviolet light of 340nm wavelength, intensity of illumination 5mW/cm2 irradiates 10 minutes.Due to the enhancing of intensity of illumination, polymer Reaction can be more abundant than in red pixel, so that the component ratio of chiral agent content in the polymer be caused to improve.According to liquid crystal Screw pitch and the proportionate relationship of chiral agent in the polymer: p=1/ (HTP*Xc), it is known that liquid crystal in green pixel after this polymer reaction Screw pitch is 550nm.
The formation of blue pixel screw pitch: as shown in figure 12, after the screw pitch of green pixel is formed, changing blue pixel mask version, And using the ultraviolet light of 340nm wavelength, intensity of illumination 7mW/cm2 irradiates 15 minutes.Continue to enhance due to intensity of illumination, Polymer reaction can be more abundant than in red pixel, green pixel, so that the component ratio of chiral agent content in the polymer be caused to mention It is high.According to liquid crystal screw pitch and the proportionate relationship of chiral agent in the polymer: p=1/ (HTP*Xc), it is known that after this polymer reaction Liquid crystal screw pitch is 420nm in blue pixel.
Third embodiment of the invention provides a kind of driving method of multi-steady state liquid crystal display part, is suitable for first and implements Multi-steady state liquid crystal display part provided by example, or the multistable state liquid srystal obtained by preparation method provided by second embodiment Device.
Cholesteric liquid crystal is generally there are two kinds of texture, planar texture respectively as shown in FIG. 13A and as shown in Figure 13 B Focal conic state texture.In plane state texture, cholesteric liquid crystal has the characteristic of Bragg reflection, can reflect, spiral shell corresponding to its screw pitch Revolve the light of the consistent wavelength in direction, such as the screw pitch of cholesteric liquid crystal is 550nm, the hand of spiral be it is left-handed, then 380~ Under 780nm natural light, the left circularly polarized light near 550nm wave band can be reflected back by cholesteric liquid crystal, remaining wave band Light and 550nm wave band near right-circularly polarized light can by liquid crystal layer, at this time liquid crystal layer side watch, liquid crystal meeting The color of the corresponding light of the wave band is presented.In Focal conic state texture, liquid crystal does not have reflection effect for the light of all wave bands, institute Having the light of wave band can be transmitted over.If cholesteric liquid crystal device side is increased a reflecting layer, by controlling cholesteric The different TEXTURE STATEs of phase liquid crystal switch, and the empty energy of different control displays may be implemented.
No matter cholesteric liquid crystal is meeting some requirements lower both states all in planar texture or Focal conic state texture It is that null field is stablized, by applying different drive conditions, can control cholesteric liquid crystal planar texture shown in Figure 13 A, figure Change between homeotropic state shown in Focal conic state texture, Figure 13 C shown in 13B.
Please with reference to Figure 14 and Figure 15, driving method provided in this embodiment includes the following steps:
The preparation stage: step S141 utilizes the first high voltage VhIn the preselected area for driving multi-steady state liquid crystal display part All primary color pixels in all pixels unit make all liquid crystal molecules that complete homeotropic state shown in Figure 13 C be presented.
Wherein, which can be the whole region of multi-steady state liquid crystal display part, can also be only that part needs It updates the region of display, sets as needed.For example, the multistable state liquid srystal device is applied in supermarket, for showing certain The price of kind commodity, wherein first area is used for display of commodity title " article A ", and second area is used to show the price of the commodity " A1 member/Kg " then can only update pricing information shown by display second area, update if needing today to adjust price For " A2 member/Kg ", at this point, second area is preselected area of this driving.
The choice phase: step S142 utilizes first choice voltage VsTarget primary color pixels are driven, so that target primary color pixels Corresponding LCD segment remains homeotropic state；Utilize the second selection voltage VnsNon-targeted primary color pixels are driven, so that LCD segment corresponding to non-targeted primary color pixels is from homeotropic state to flat state relaxation.
Wherein, the picture that target primary color pixels position is currently shown needs the primary color pixels opened, non-targeted primary color pixels position The picture currently shown does not need open primary color pixels.
Evolving stage: step S143 utilizes differentiation voltage VeTarget primary color pixels and non-targeted primary color pixels are driven simultaneously, So that LCD segment corresponding to target primary color pixels continues to remain homeotropic state, so that non-targeted primary color pixels institute is right The LCD segment answered to flat state relaxation be changed into Figure 13 B shown in Focal conic state.
Step S144, removes evolving stage: utilizing differentiation voltage VePersistently drive target primary color pixels and non-targeted primary colours After pixel preset time period, the differentiation voltage V is removede, so that the first flat state relaxation changed to screw pitch of target primary color pixels, Then again to more stable flat state relaxation, so that non-targeted primary color pixels remain Focal conic state.
Wherein, the first high voltage Vh> develop voltage Ve> first choice voltage Vs> the second selection voltage Vns.Driving method Detailed process is as shown in figure 16.
Further, as in the first embodiment, each primary color pixels is in the first electrode pattern or described Multiple electrodes are corresponding in two electrode patterns, by controlling the achievable control to affiliated primary color pixels of each electrode System, realizes different display effects.At this point, executing above-mentioned step S141 preparation stage, step S142 choice phase, step Which when S143 evolving stage, can also be further refined as that electrode of primary color pixels specifically driven.
The step S141 preparation stage specifically: for all pixels in the preselected area of the multi-steady state liquid crystal display part All primary color pixels in unit make all liquid crystal molecules be in using the preset electrode of each primary color pixels of the first high drive Now complete homeotropic state.
It include four electrodes PR1, PR2, PR3, PR4 for example, as shown in fig. 7, for red pixel PR, it can be according to thinking The display effect wanted selects driving wherein which electrode, such as when needing to select driving two of them electrode, can be Electrode PR1 and PR2, are also possible to PR1 and PR4, the former show pixel granular sensation it is lower, the pixel granular sensation that the latter shows compared with Weight.
The step S142 choice phase specifically: the preset electrode of target primary color pixels is driven using first choice voltage, with LCD segment corresponding to target primary color pixels is set to remain homeotropic state；Non-targeted base is driven using the second selection voltage The preset electrode of color pixel, so that LCD segment corresponding to non-targeted primary color pixels is speeded from homeotropic state to flat state Henan.
Step S143 evolving stage specifically: drive the preset electrode of target primary color pixels and non-simultaneously using voltage is developed The preset electrode of target primary color pixels, so that LCD segment corresponding to target primary color pixels continues to remain vertical row column-shaped State, so that LCD segment corresponding to non-targeted primary color pixels is changed into Focal conic state to flat state relaxation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (10)

1. a kind of multi-steady state liquid crystal display part characterized by comprising
First substrate, inside have first electrode layer, and the first electrode layer includes several first electrode patterns；
The second substrate, inside have the second electrode lay, and the second electrode lay includes several second electrode patterns；
The liquid crystal layer being sealed between the first substrate and the second substrate；
Wherein, the face part of several first electrode patterns and several second electrode patterns constitutes several pixel lists Member, each pixel unit include multiple primary colors pixel；
Different primary color pixels LCD segment corresponding in the liquid crystal layer has different screw pitch, so that each primary colours The LCD segment of pixel can reflect the light of corresponding wavelength.
2. multi-steady state liquid crystal display part as described in claim 1, which is characterized in that each primary color pixels is described Multiple electrodes are corresponding in one electrode pattern or the second electrode pattern, can be achieved by controlling each electrode to institute The control of the primary color pixels of category.
3. multi-steady state liquid crystal display part as described in claim 1, which is characterized in that the liquid crystal layer and the first electrode There is first alignment layer between layer, there is second orientation layer between the liquid crystal layer and the second electrode lay；
The outside of the first substrate is with anti-reflection layer or anti-dazzle photosphere or anti-scratch protective layer；
The multi-steady state liquid crystal display part further includes a reflecting layer, and the reflecting layer is located at outside or the institute of the second substrate It states between liquid crystal layer and the second electrode lay.
4. multi-steady state liquid crystal display part as described in claim 1, which is characterized in that the liquid crystal layer include liquid crystal and The polymer of polymerization reaction can occur under action of ultraviolet light, the liquid crystal mixes with the polymer；The liquid crystal with it is described The mass ratio of polymer is (100-70): (0-30)；The polymer includes the dilution of the oligomer of 93 mass parts, 5 mass parts The photoinitiator of agent and 2 mass parts.
5. multi-steady state liquid crystal display part as claimed in claim 4, which is characterized in that the oligomer includes 65 mass parts Methacrylic acid -2- the hydroxy propyl ester of 2- methyl -2- acrylic acid -1,2- glycol ester and 28 mass parts；The diluent is first Base hexyl methanol；The photoinitiator is 1- hydroxycyclohexyl phenyl ketone.
6. multi-steady state liquid crystal display part as claimed in claim 4, which is characterized in that the liquid crystal is cholesteric liquid crystal, institute Stating cholesteric liquid crystal includes two kinds of opposite chiral agents of temperature characterisitic, the HTP value of one of chiral agent increase with temperature and Increase, the HTP value of another chiral agent increases with temperature and reduced.
7. a kind of preparation method of multi-steady state liquid crystal display part, which is characterized in that include the following steps:
Make a liquid crystal sylphon；The liquid crystal sylphon includes that inside has the first substrate of first electrode layer, inside with second The second substrate of electrode layer, the first electrode layer includes several first electrode patterns, if the second electrode lay includes Dry second electrode pattern；The face part of several first electrode patterns and several second electrode patterns constitutes several pictures Plain unit, each pixel unit include multiple primary colors pixel；
Liquid crystal containing the polymer that polymerization reaction can occurs under action of ultraviolet light is injected into the liquid crystal sylphon and is sealed, Obtain liquid crystal cell；
For each primary color pixels, cover the liquid crystal cell using mask plate corresponding with the primary color pixels, then with this The corresponding illumination parameter of primary color pixels carries out ultraviolet light, until LCD segment corresponding to all primary color pixels is shone It penetrated, so that forming different primary color pixels LCD segment corresponding in the liquid crystal layer has different screw pitch.
8. preparation method as claimed in claim 7, which is characterized in that each primary color pixels is in the first electrode pattern Or multiple electrodes are corresponding in the second electrode pattern, it can be achieved by controlling each electrode to affiliated primary colours picture The control of element；
The liquid crystal layer includes liquid crystal and the polymer that polymerization reaction can occur under action of ultraviolet light, the liquid crystal and institute Polymer is stated to mix；The mass ratio of the liquid crystal and the polymer is (100-70): (0-30)；The polymer includes 93 matter Measure the oligomer, the diluent of 5 mass parts and the photoinitiator of 2 mass parts of part.
9. a kind of driving method to multi-steady state liquid crystal display part as claimed in any one of claims 1 to 6, which is characterized in that Include:
Preparation stage: all pixels unit in the preselected area of multi-steady state liquid crystal display part described in the first high voltage drive is utilized In all primary color pixels, make all liquid crystal molecule that complete homeotropic state be presented；
Choice phase: target primary color pixels are driven using first choice voltage, so that liquid crystal portion corresponding to target primary color pixels Divide and remains homeotropic state；Non-targeted primary color pixels are driven using the second selection voltage, so that non-targeted primary color pixels institute Corresponding LCD segment is from homeotropic state to flat state relaxation；
Evolving stage: target primary color pixels and non-targeted primary color pixels are driven simultaneously using voltage is developed, so that target primary colours picture LCD segment corresponding to element continues to remain homeotropic state so that LCD segment corresponding to non-targeted primary color pixels from It is changed into Focal conic state to flat state relaxation；
Remove evolving stage: after persistently driving target primary color pixels and non-targeted primary color pixels preset time period using differentiation voltage, The differentiation voltage is removed, so that target primary color pixels are first to the flat state relaxation of screw pitch variation, then again to more stable Flat state relaxation, so that non-targeted primary color pixels remain Focal conic state；
Wherein, the first high voltage > differentiation voltage > first choice voltage > second selection voltage.
10. preparation method as claimed in claim 9, which is characterized in that each primary color pixels is in the first electrode figure Multiple electrodes are corresponding in case or the second electrode pattern, can be achieved by controlling each electrode to affiliated primary colours The control of pixel；
The preparation stage specifically: in all pixels unit in the preselected area of the multi-steady state liquid crystal display part All primary color pixels are presented all liquid crystal molecules and hang down completely using the preset electrode of each primary color pixels of the first high drive Straight ordered state；
The choice phase specifically: using the preset electrode of first choice voltage driving target primary color pixels, so that target base LCD segment corresponding to color pixel remains homeotropic state；Non-targeted primary color pixels are driven using the second selection voltage Preset electrode, so that LCD segment corresponding to non-targeted primary color pixels is from homeotropic state to flat state relaxation；
The evolving stage specifically: drive the preset electrode and non-targeted primary colours of target primary color pixels simultaneously using differentiation voltage The preset electrode of pixel, so that LCD segment corresponding to target primary color pixels continues to remain homeotropic state, so that non- LCD segment corresponding to target primary color pixels is changed into Focal conic state to flat state relaxation.
CN201910458897.5A 2019-05-29 2019-05-29 Multi-steady state liquid crystal display part, preparation method and driving method Pending CN110133904A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111679354A (en) * 2020-06-05 2020-09-18 Tcl华星光电技术有限公司 Reflective optical filter, preparation method thereof and reflective display device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040069552A (en) * 2003-01-29 2004-08-06 엘지.필립스 엘시디 주식회사 Liquid Crystal Display Device with Cholesteric Liquid Crystal Color Filter
CN101059607A (en) * 2006-04-17 2007-10-24 孙刚 Electrically-controlled liquid crystal light modulation glass and film
US20110080553A1 (en) * 2008-03-14 2011-04-07 Gang Sun Electrically controlled medium for modulating light
CN102707481A (en) * 2012-03-15 2012-10-03 京东方科技集团股份有限公司 Liquid crystal display panel and manufacturing method thereof and liquid crystal display
CN108776404A (en) * 2018-06-29 2018-11-09 深圳市华星光电技术有限公司 Two-sided liquid crystal display panel, display with double faces
CN209928179U (en) * 2019-05-29 2020-01-10 深圳市光合显示科技有限公司 Multistable liquid crystal display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040069552A (en) * 2003-01-29 2004-08-06 엘지.필립스 엘시디 주식회사 Liquid Crystal Display Device with Cholesteric Liquid Crystal Color Filter
CN101059607A (en) * 2006-04-17 2007-10-24 孙刚 Electrically-controlled liquid crystal light modulation glass and film
US20110080553A1 (en) * 2008-03-14 2011-04-07 Gang Sun Electrically controlled medium for modulating light
CN102707481A (en) * 2012-03-15 2012-10-03 京东方科技集团股份有限公司 Liquid crystal display panel and manufacturing method thereof and liquid crystal display
CN108776404A (en) * 2018-06-29 2018-11-09 深圳市华星光电技术有限公司 Two-sided liquid crystal display panel, display with double faces
CN209928179U (en) * 2019-05-29 2020-01-10 深圳市光合显示科技有限公司 Multistable liquid crystal display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111679354A (en) * 2020-06-05 2020-09-18 Tcl华星光电技术有限公司 Reflective optical filter, preparation method thereof and reflective display device
WO2021243805A1 (en) * 2020-06-05 2021-12-09 Tcl华星光电技术有限公司 Reflective optical filter and production method therefor, and reflective display device

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