CN102707473A - Liquid crystal panel and liquid crystal display - Google Patents
Liquid crystal panel and liquid crystal display Download PDFInfo
- Publication number
- CN102707473A CN102707473A CN2012101334617A CN201210133461A CN102707473A CN 102707473 A CN102707473 A CN 102707473A CN 2012101334617 A CN2012101334617 A CN 2012101334617A CN 201210133461 A CN201210133461 A CN 201210133461A CN 102707473 A CN102707473 A CN 102707473A
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- China
- Prior art keywords
- liquid crystal
- crystal panel
- transparent electrode
- upper substrate
- infrabasal plate
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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
- G02F1/137—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
- G02F1/137—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
- G02F1/13712—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 the liquid crystal having negative dielectric anisotropy
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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 liquid crystal panel and a liquid crystal display and aims at solving the problem that the liquid crystal display existing in the prior art can not provide a function of a mirror. The liquid crystal panel comprises an upper substrate and a lower substrate arranged relative to each other, transparent electrode layers are respectively arranged on the two substrates, a negative cholesteric liquid crystal layer added with chiral ionic liquid is arranged between the upper substrate and the lower substrate, and the two transparent electrode layers are connected with an alternating current power supply which has a controllable switch state and can enable negative cholesteric liquid crystal to form a reflective state. By utilizing the scheme, the liquid crystal panel is connected with an alternating current signal which can achieve normal display when normal display is needed, and the signal is switched to the alternating current power supply which has the controllable switch state and can enable negative cholesteric liquid crystal added with the chiral ionic liquid to form the reflective state when the liquid crystal panel is needed to realize the function of the mirror, thus the function of the mirror is added to the liquid crystal panel.
Description
Technical field
The present invention relates to field of liquid crystal, particularly a kind of liquid crystal panel and LCD.
Background technology
LCD is a kind of ultra-thin display device, and it comprises two substrates positioned opposite to each other, is provided with liquid crystal between the two substrates.The LCD power consumption is lower, is applicable to the electronic equipment that uses battery, therefore gains great popularity.
Along with the development of technology, people are to the requirement of the LCD variation that also becomes, and are also more and more to the demand of the auxiliary function of miniscopes such as mobile phone.The inventor finds, does not also have the mobile telephone display of mirror function in the prior art.
Summary of the invention
The present invention provides a kind of liquid crystal panel and LCD, can realize the Presentation Function of liquid crystal panel, when not showing, can realize mirror function.This liquid crystal panel; It is characterized in that; Comprise upper substrate positioned opposite to each other and infrabasal plate; Be respectively equipped with transparent electrode layer on the two substrates, be provided with the negativity cholesteric crystal layer that adds chiral ionic liquid between upper substrate and the infrabasal plate, two transparent electrode layers with have the controllable switch state, can make the negativity cholesteric liquid crystal be the AC power that reflects attitude to be connected.
Further, two transparent electrode layers also are connected with direct supply.
Further, be provided with color film at said infrabasal plate near said liquid crystal layer one side.
Further, the transparent electrode layer on the said infrabasal plate is arranged on the color film.
Further, be provided with the reflection horizon at said infrabasal plate near liquid crystal layer one side, said reflection horizon is provided with color film.
Further, said liquid crystal panel also comprises light source, and said light source is arranged at the side of said upper substrate.
Further, also be provided with the LGP that cooperates with light source on the said upper substrate.
The embodiment of the invention also provides a kind of LCD, comprises foregoing liquid crystal panel.
Owing to adopt the negativity cholesteric liquid crystal that adds chiral ionic liquid; Make simultaneously in the liquid crystal panel transparency conducting layer with have the gate-controlled switch state, can make the negativity courage steroid that adds chiral ionic liquid be the AC power that reflects attitude to liquid crystal; When needs normally showed, liquid crystal panel was connected with realizing the normal AC signal that shows; When the needs liquid crystal panel is realized mirror function, with signal switch to have the gate-controlled switch state, can make the negativity courage steroid that adds chiral ionic liquid be the AC power that reflects attitude to liquid crystal.Thereby in liquid crystal panel, increased the function of mirror.
Description of drawings
Fig. 1 representes the liquid crystal panel structure figure that the embodiment of the invention provides;
Fig. 2 representes the liquid crystal texture synoptic diagram under the liquid crystal virgin state that the embodiment of the invention provides;
Fig. 3 representes the liquid crystal focal conic texture synoptic diagram that the embodiment of the invention provides;
Fig. 4 representes the liquid crystal planar texture synoptic diagram that the embodiment of the invention provides;
Fig. 5 representes the reflective liquid crystal panel structural drawing that the embodiment of the invention provides;
Fig. 6 representes the reflective liquid crystal panel structural drawing of the increase light source that the embodiment of the invention provides.
Embodiment
For technical matters, technical scheme and advantage that embodiments of the invention will be solved is clearer, will combine accompanying drawing and specific embodiment to be described in detail below.
The embodiment of the invention adds chiral ionic liquid 5 in negativity cholesteric liquid crystal 6; Through electric field controls chiral ionic liquid 5 move and the texture of cholesteric liquid crystal changes; Thereby the transmission, scattering, the direct reflection that realize electric field controls are ternary, realize the effect of mirror with this.
As shown in Figure 1; The liquid crystal panel that first embodiment of the invention provides; Comprise upper substrate 1, infrabasal plate 2; Be respectively equipped with transparent electrode layer 3 on the two substrates, be provided with negativity cholesteric liquid crystal 6, two transparent electrode layers 3 that add chiral ionic liquid 5 between the upper and lower base plate and have the AC power 4 controllable switch state, that the negativity cholesteric liquid crystal is reflect attitude and be connected.In order to realize the Presentation Function of normal liquid crystal panel; Two transparent electrode layers also are connected with realizing the normal AC signal that shows; The general AC signal that adopts lower frequency (100 to 200 hertz); Promptly two transparent electrode layers are connected with the AC signal of frequency at 100 to 200 hertz when normal the demonstration; In the time need not showing and needs when realizing mirror function, two transparent electrode layers with have the negativity cholesteric liquid crystal gate-controlled switch state, that can make the adding chiral ionic liquid and be the AC power 4 that reflects attitude and be connected (generally adopting frequency) greater than 8000 hertz AC signal, realize the function of mirror through this mode.
Owing to adopt the negativity cholesteric liquid crystal 6 that adds chiral ionic liquid 5; Make simultaneously in the liquid crystal panel transparency conducting layer with have the gate-controlled switch state, can make the negativity courage steroid that adds chiral ionic liquid be the AC power that reflects attitude to liquid crystal; Realize that under the effect of the AC power of lower frequency (100 hertz to 200 hertz) normal image shows; Under the effect of the AC power of upper frequency (more than 8000 hertz), the distribution of chiral ionic liquid 5 concentrates on electrode side, and the pitch gradient that negativity cholesteric liquid crystal 6 occurs distributes; Thereby the display mirror reflective condition, the effect of realization mirror.
Certainly in order to present the direct reflection state faster; Can also transparent electrode layer be connected with direct supply; Make liquid crystal panel become transmission, scattering, the ternary variation of direct reflection through increasing direct supply; In this case, the reaction velocity of liquid crystal molecule is than directly faster to the direct reflection attitude from transmission state.
The virgin state of negativity cholesteric liquid crystal 6 under situation about not powering up that adds chiral ionic liquid 5 is as shown in Figure 2, presents transmission state.Under the DC electric field effect, chiral ionic liquid 5 is to the electrode migration, and the negativity cholesteric liquid crystal presents focal conic texture, and is as shown in Figure 3, presents scattering states.Switch to the alternating voltage of high-frequency (more than 8000 hertz) after the scattering state; Negativity cholesteric liquid crystal 6 is converted to planar texture as shown in Figure 4 from focal conic texture, because the distribution of chiral ionic liquid 5 concentrates on electrode side, the pitch gradient that negativity cholesteric liquid crystal 6 occurs distributes; And the display mirror reflective condition; Remove after the high-frequency voltage, recover virgin state, show transmissive state like Fig. 2.Simultaneously, alive varying in size, the diffusion of chiral ionic liquid 5 is different, thus reflection wave is wide also different, and transmitance is also different.Apply the size of voltage through adjusting, the transmitance that can regulate negativity cholesteric liquid crystal 6, light passes through color film again, thereby demonstrates any color.
The embodiment of the invention adopts the negativity cholesteric liquid crystal 6 that adds chiral ionic liquid 5 middle with infrabasal plate 2 at upper substrate 1, and the negativity cholesteric liquid crystal 6 that adds chiral ionic liquid 5 can be realized the effect of mirror when the direct reflection state.Owing to adopt cholesteric liquid crystal, polaroid need be set simultaneously, therefore can improve the efficient of light greatly.
Liquid crystal panel in the embodiment of the invention LCD can be a reflective liquid crystal panel.Because small-sized reflection LCD indoorly all can often be used outdoor, so only show it is not enough by surround lighting.Consider above-mentioned situation, can be through light source be set in reflection LCD, even under dark surrounds, also can show like this.As reflection LCD, light source can not be arranged on the infrabasal plate 2 of back, and general reflection LCD is provided with light source in upper substrate 1 side.
Fig. 5 is the liquid crystal panel synoptic diagram of the reflection LCD of the embodiment of the invention.As shown in Figure 5, reflective liquid crystal panel has upper substrate positioned opposite to each other 1 and infrabasal plate 2, and is respectively equipped with transparent electrode layer 3 on the two substrates, and transparent electrode layer 3 is connected with AC power 4.Near liquid crystal side reflecting plate 7 is set at infrabasal plate 2, reflecting plate 7 is provided with color film 8, and transparent electrode layer 3 is arranged on the color film 8.The negativity cholesteric liquid crystal 6 that adds chiral ionic liquid 5 is arranged between two substrates.Under low frequency (100 to 200 hertz) AC signal, liquid crystal panel can be realized normal Presentation Function; When applying direct current signal, liquid crystal layer is the scattering states of focal conic texture, therefore shows dark attitude; When applying high-frequency AC signal (greater than 8000Hz), liquid crystal layer is to have the planar texture that different pitch distribute, and realizes mirror effect.
Fig. 6 for the reflection LCD that increases light source the liquid crystal panel synoptic diagram, on the basis of aforementioned schemes, add light source and LGP again.Particularly, the LGP 10 that upper substrate 1 is provided with light source 9 and cooperates with light source 9, light source 9 is arranged on the side of upper substrate 1.Under bright light environments, light source is a closed condition, and utilizes surround lighting to show.Under dark surrounds, light source is an opening, to liquid crystal layer, realizes Presentation Function thereby pass through color film and reflection horizon again through LGP from the light that light source sends.
Second embodiment of the invention provides a kind of LCD, includes like aforesaid liquid crystal panel.
What should explain at last is: above embodiment is only in order to technical scheme of the present invention to be described but not limit it; Although the present invention has been carried out detailed explanation with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, also can not make amended technical scheme break away from the spirit and the scope of technical scheme of the present invention and these are revised or be equal to replacement.
Claims (8)
1. liquid crystal panel; It is characterized in that; Comprise upper substrate positioned opposite to each other and infrabasal plate; Be respectively equipped with transparent electrode layer on the two substrates, be provided with the negativity cholesteric crystal layer that adds chiral ionic liquid between upper substrate and the infrabasal plate, two transparent electrode layers with have the controllable switch state, can make the negativity cholesteric liquid crystal be the AC power that reflects attitude to be connected.
2. liquid crystal panel according to claim 1 is characterized in that two transparent electrode layers also are connected with direct supply.
3. liquid crystal panel according to claim 1 is characterized in that, is provided with color film at said infrabasal plate near said liquid crystal layer one side.
4. liquid crystal panel according to claim 3 is characterized in that, the transparent electrode layer on the said infrabasal plate is arranged on the said color film.
5. liquid crystal panel according to claim 1 is characterized in that, is provided with the reflection horizon at said infrabasal plate near liquid crystal layer one side, and said reflection horizon is provided with color film.
6. liquid crystal panel according to claim 1 is characterized in that, also comprises light source, and said light source is arranged at the side of said upper substrate.
7. liquid crystal panel according to claim 6 is characterized in that, also is provided with the LGP that cooperates with light source on the said upper substrate.
8. a LCD is characterized in that, comprises arbitrary described liquid crystal panel among the claim 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101334617A CN102707473A (en) | 2012-04-28 | 2012-04-28 | Liquid crystal panel and liquid crystal display |
| PCT/CN2012/084533 WO2013159505A1 (en) | 2012-04-28 | 2012-11-13 | Liquid crystal panel and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101334617A CN102707473A (en) | 2012-04-28 | 2012-04-28 | Liquid crystal panel and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102707473A true CN102707473A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101334617A Pending CN102707473A (en) | 2012-04-28 | 2012-04-28 | Liquid crystal panel and liquid crystal display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102707473A (en) |
| WO (1) | WO2013159505A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149734A (en) * | 2013-02-19 | 2013-06-12 | 京东方科技集团股份有限公司 | Display device |
| WO2013159505A1 (en) * | 2012-04-28 | 2013-10-31 | 京东方科技集团股份有限公司 | Liquid crystal panel and liquid crystal display |
| CN104570463A (en) * | 2015-01-22 | 2015-04-29 | 京东方科技集团股份有限公司 | Display device with mirror function and manufacturing method thereof |
| WO2016045438A1 (en) * | 2014-09-25 | 2016-03-31 | 中兴通讯股份有限公司 | Display screen having mirror function, control method, device and terminal |
| CN105860995A (en) * | 2016-04-19 | 2016-08-17 | 京东方科技集团股份有限公司 | Composition, liquid crystal display device and preparation method of liquid crystal device |
| CN107608155A (en) * | 2017-10-23 | 2018-01-19 | 天马微电子股份有限公司 | Display panel and display device |
| CN111323975A (en) * | 2020-04-09 | 2020-06-23 | Tcl华星光电技术有限公司 | Optical film with dimming characteristic and manufacturing method thereof |
| US12105365B1 (en) * | 2023-12-28 | 2024-10-01 | National Sun Yat-Sen University | Light reflecting device and switching method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159505A1 (en) * | 2012-04-28 | 2013-10-31 | 京东方科技集团股份有限公司 | Liquid crystal panel and liquid crystal display |
| CN103149734A (en) * | 2013-02-19 | 2013-06-12 | 京东方科技集团股份有限公司 | Display device |
| CN103149734B (en) * | 2013-02-19 | 2015-06-24 | 京东方科技集团股份有限公司 | Display device |
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| WO2016045438A1 (en) * | 2014-09-25 | 2016-03-31 | 中兴通讯股份有限公司 | Display screen having mirror function, control method, device and terminal |
| WO2016115791A1 (en) * | 2015-01-22 | 2016-07-28 | 京东方科技集团股份有限公司 | Display apparatus with mirror function and manufacturing method therefor |
| US20170023826A1 (en) * | 2015-01-22 | 2017-01-26 | Boe Technology Group Co., Ltd. | Display apparatus having mirror function and method for producing the same |
| CN104570463A (en) * | 2015-01-22 | 2015-04-29 | 京东方科技集团股份有限公司 | Display device with mirror function and manufacturing method thereof |
| CN105860995A (en) * | 2016-04-19 | 2016-08-17 | 京东方科技集团股份有限公司 | Composition, liquid crystal display device and preparation method of liquid crystal device |
| CN107608155A (en) * | 2017-10-23 | 2018-01-19 | 天马微电子股份有限公司 | Display panel and display device |
| CN107608155B (en) * | 2017-10-23 | 2020-05-22 | 天马微电子股份有限公司 | Display panel and display device |
| CN111323975A (en) * | 2020-04-09 | 2020-06-23 | Tcl华星光电技术有限公司 | Optical film with dimming characteristic and manufacturing method thereof |
| US12105365B1 (en) * | 2023-12-28 | 2024-10-01 | National Sun Yat-Sen University | Light reflecting device and switching method thereof |
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| Publication number | Publication date |
|---|---|
| WO2013159505A1 (en) | 2013-10-31 |
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Application publication date: 20121003 |