CN202171715U - Liquid crystal display panel and liquid crystal display device - Google Patents
Liquid crystal display panel and liquid crystal display device Download PDFInfo
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- CN202171715U CN202171715U CN2011202859810U CN201120285981U CN202171715U CN 202171715 U CN202171715 U CN 202171715U CN 2011202859810 U CN2011202859810 U CN 2011202859810U CN 201120285981 U CN201120285981 U CN 201120285981U CN 202171715 U CN202171715 U CN 202171715U
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- liquid crystal
- magnetic field
- display panels
- glass substrate
- magnetic
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Abstract
The utility model provides a liquid crystal display panel and a liquid crystal display device, and provides the liquid crystal display technology utilizing a magnetic field to control rotation of liquid crystal molecules. The liquid crystal display panel comprises a colored-film substrate, a glass substrate, a magnetic liquid crystal layer and magnetic field generating devices, wherein the glass substrate is parallel and opposite to the colored-film substrate, the magnetic liquid crystal layer with magnetic liquid crystal molecules is arranged between the colored-film substrate and the glass substrate, the magnetic field generating devices are used for generating the magnetic field to drive the magnetic liquid crystal molecules to rotate and formed on an attaching substrate and correspond to sub-pixels on the colored-film substrate, and the attaching substrate is the colored-film substrate and/or the glass substrate. Since the magnetic field generating devices are arranged on the colored-film substrate and/or the glass substrate which is parallel and opposite to the colored-film substrate, the magnetic field generated by the magnetic field generating devices drive the magnetic liquid crystal molecules to rotate, and the purpose of controlling rotation of the magnetic liquid crystal molecules by the magnetic field is achieved.
Description
Technical field
The utility model relates to technical field of liquid crystal display, particularly a kind of display panels and liquid crystal indicator.
Background technology
Existing display panels comprises color membrane substrates, array base palte and is filled in liquid crystal layer between the two; Wherein, be formed with pixel electrode on the array base palte, be formed with public electrode on the color membrane substrates; Form electric field powering up between latter two electrode; Through the variation of control electric field intensity, the anglec of rotation of liquid crystal molecule in the control liquid crystal layer, thereby the light transmittance of control backlight.Also be formed with the sub-pixel of three primary colours on the color membrane substrates, each sub-pixel carries out colour filter, through regulating the light penetration of backlight, can obtain some GTGs of different colours, realizes versicolor colored the demonstration through the colour mixture addition.
Existing display panels all reaches display effect through the rotation of electric field controls liquid crystal molecule; Even lcd technology develops to some extent; Liquid crystal display is still accomplished under electric field driven all the time; Like TN (Twisted Nematic; Twisted-nematic) pattern, VA pattern (Vertical Alignment) and IPS (In-Plane Switching; The face internal conversion) pattern of these three kinds of stages of pattern, other all is the improvement on the basis of these three kinds of patterns such as MVA (Multi-domain Vertical Alignment, multi-domain vertical alignment), ASV (Advanced SuperView), FFS (Fringing Field Switching), AFFS (Advanced Fringing FieldSwitching) isotype.
And along with the going deep into of magnetic liquid crystal research, how to utilize magnetic field control liquid crystal molecule to rotate and carry out the technical matters that liquid crystal display becomes field of liquid crystal display.
The utility model content
The utility model embodiment provides a kind of display panels and liquid crystal indicator, in order to a kind of lcd technology that utilizes the rotation of magnetic field control liquid crystal molecule to be provided.
The utility model embodiment provides a kind of display panels, comprising:
Color membrane substrates;
Glass substrate is oppositely arranged with said color membrane substrates is parallel;
Wherein, said display panels also comprises:
Magnetic liquid crystal layer with magnetic liquid crystal molecule is between said color membrane substrates and said glass substrate;
Be used to produce magnetic field to drive the magnetic field generating spare of said magnetic liquid crystal molecule rotation, be formed on the attaching substrates, and corresponding with the sub-pixel on the said color membrane substrates, wherein, said attaching substrates is said color membrane substrates and/or said glass substrate.
Wherein, preferably, said magnetic field generating spare is the electromagnetism group;
Wherein, said electromagnetism group comprises conductor and the lead that twines said conductor.
Preferably, said display panels also can comprise:
Gate line is formed on the said attaching substrates;
Data line is formed on the said attaching substrates, intersects with said gate line and is electrically insulated;
Thin film transistor (TFT) is formed on the said attaching substrates, and the grid of said thin film transistor (TFT) connects said gate line, source electrode and connects first end that said data line, drain electrode connect said lead;
Electrode is formed on the said attaching substrates, is electrically insulated with said drain electrode, is connected with second end of said lead.
In addition, preferably, said magnetic field generating spare also can be permanent magnet.
Preferably, said magnetic field generating spare can adopt one-domain structure or multidomain structure to arrange.
Preferably, said magnetic liquid crystal molecule can be the paramagnetism liquid crystal molecule.
Preferably, said magnetic liquid crystal molecule perhaps is parallel to said glass substrate arrangement perpendicular to said glass substrate arrangement when said magnetic field intensity is zero.
Preferably, can be provided with first alignment film between said magnetic liquid crystal layer and the said color membrane substrates;
Can be provided with second alignment film between said magnetic liquid crystal layer and the said glass substrate.
Can be attached with first polaroid on the surface of the said glass substrate dorsad of said color membrane substrates;
Can be attached with second polaroid on the surface of the said color membrane substrates dorsad of said glass substrate.
The utility model embodiment also provides a kind of liquid crystal indicator, comprises above-mentioned display panels.
The technical scheme that the utility model embodiment provides is being provided with magnetic field generating spare on the color membrane substrates and/or on the parallel glass substrate that is oppositely arranged with color membrane substrates; The field drives magnetic liquid crystal molecule rotation that utilizes magnetic field generating spare to produce has realized the purpose of utilizing magnetic field control liquid crystal molecule to rotate.
Description of drawings
Figure 1A is the diagrammatic cross-section of a kind of display panels among the utility model embodiment;
Figure 1B is the arrangement synoptic diagram of magnetic field generating spare on attaching substrates among the utility model embodiment;
Fig. 2 A is the structural representation that is provided with the display panels of electromagnetism group among the utility model embodiment;
Fig. 2 B is the diagrammatic cross-section of annexation between electrode among the utility model embodiment, drain D, the electromagnetism group;
Fig. 3 is for being provided with the structural representation of the display panels of permanent magnet among the utility model embodiment;
Fig. 4 is that magnetic field generating spare adopts multidomain structure structure arranged synoptic diagram among the utility model embodiment;
Fig. 5 is that the electromagnetism group adopts multidomain structure structure arranged synoptic diagram among the utility model embodiment;
Fig. 6 A is the diagrammatic cross-section of arranging perpendicular to glass substrate when the magnetic liquid crystal molecule is zero among the utility model embodiment in magnetic field;
Fig. 6 B is parallel to the diagrammatic cross-section that glass substrate is arranged when the magnetic liquid crystal molecule in magnetic field is zero among the utility model embodiment;
Fig. 7 A is the work synoptic diagram of display panels among Fig. 6 A;
Fig. 7 B is the work synoptic diagram of display panels among Fig. 6 B;
Fig. 7 C is the work synoptic diagram that display panels utilizes two field drives magnetic liquid crystal molecule rotations among the utility model embodiment.
Embodiment
For technical matters, technical scheme and advantage that the utility model embodiment will be solved is clearer, will combine accompanying drawing and specific embodiment to be described in detail below.
The display panels that the utility model embodiment provides is being provided with magnetic field generating spare on the color membrane substrates and/or on the parallel glass substrate that is oppositely arranged with color membrane substrates; The field drives magnetic liquid crystal molecule rotation that utilizes magnetic field generating spare to produce has realized the purpose of utilizing magnetic field control liquid crystal molecule to rotate.
Shown in Figure 1A, 1B, the utility model embodiment provides a kind of display panels, comprising:
Magnetic liquid crystal layer 3 with magnetic liquid crystal molecule is between color membrane substrates 1 and glass substrate 2;
Be used to produce magnetic field to drive the magnetic field generating spare 4 of magnetic liquid crystal molecule rotation; Be formed on the attaching substrates; And it is corresponding with the sub-pixel 11 on the color membrane substrates 1; Wherein, attaching substrates is color membrane substrates 1 and/or glass substrate 2 (Figure 1A, 1B only show the situation that attaching substrates is a glass substrate 2).
Above-mentioned magnetic liquid crystal molecule can be the paramagnetism liquid crystal molecule; Such as utilizing nano particle doping techniques, metallics coordination technology or molecule synthesis technology; The magnetic free radical is synthesized on the liquid crystal molecule, makes liquid crystal molecule produce paramagnetism, form organic magnetic molecule; Under the action of a magnetic field, the liquid crystal molecule that has the magnetic free radical can be arranged by paramagnetic.The magnetic liquid crystal molecule can be negativity magnetic liquid crystal molecule or positivity magnetic liquid crystal molecule.
The corresponding one or more magnetic field generating spares of one subpixels; The effect of magnetic field generating spare is to form enough strong magnetic field; The magnetic liquid crystal molecule is rotated under the effect in magnetic field; Postrotational magnetic liquid crystal molecule can change the polarisation of light direction, makes display panels reach the purpose of demonstration.
In the above-mentioned display panels, if attaching substrates is color membrane substrates or glass substrate, then there is the magnetic field that is produced by magnetic field generating spare in a side of magnetic liquid crystal layer, is single magnetic field, and the display panels utilization should be rotated by list field drives magnetic liquid crystal molecule; If attaching substrates is color membrane substrates and glass substrate; Then there is the magnetic field that is produced by magnetic field generating spare respectively in the both sides of magnetic liquid crystal layer; Be two magnetic fields, magnetic field intensity is better than single magnetic field (can be considered and strengthen magnetic field), and display panels utilizes the rotation of this pair field drives magnetic liquid crystal molecule.
It is thus clear that the display panels that the utility model embodiment provides is the field drives magnetic liquid crystal molecule rotation that utilizes magnetic field generating spare to produce.
Among the utility model embodiment, magnetic field generating spare can be embodied as electromagnetism group or permanent magnet, introduces the display panels under these two kinds of forms below respectively:
1, magnetic field generating spare is the electromagnetism group
When institute's picture displayed is dynamic menu,, can reach the effect that shows dynamic menu with the electromagnetism group as magnetic field generating spare such as the display device of needs conversion pictures such as televisor.
Shown in Fig. 2 A, the electromagnetism group comprises the lead 42 of conductor 41 and coiled conductor 41; Wherein, The electromagnetism group can be with indium tin oxide and processes or process with transparent or nontransparent other conductive material; The shape of conductor 41 can be shapes such as right cylinder, rectangular parallelepiped, and the coil number of structural parameters such as the length of conductor 41, diameter and lead 42 coiled conductors 41 can be provided with adjustment as required.
Preferably, shown in Fig. 2 A, above-mentioned display panels can also comprise for another example:
Thin film transistor (TFT) 53 is formed on the attaching substrates 5, and the grid G of thin film transistor (TFT) 53 connects first end of gate line 51, source S connection data line 52, drain D connection lead 42;
Above-mentioned electromagnetism group, gate line 51, data line 52, thin film transistor (TFT) 53, electrode 54 can be used the mask fabrication techniques of existing TFT (Thin Film Transistor, TFT) substrate.
Wherein, the effect of gate line 51 is switches of control TFT 53.
The effect of data line 52 provides the data-signal input.
The effect of thin film transistor (TFT) 53 is through the input of gate line control data signal.
The effect of electrode 54 is after gate line 51, data line 52, electrode 54 power up; Make drain D, the lead 42 of data line 52, thin film transistor (TFT) 53 can form a loop; Making in the lead 42 has electric current, makes the electromagnetism group can generate magnetic field, thereby drives the rotation of magnetic liquid crystal molecule.The drain D of electrode 54 and thin film transistor (TFT) 53 is electrically insulated and can adopts that structure realizes shown in Fig. 2 B, and among Fig. 2 B, drain D, electromagnetism group are positioned at different aspects and the position is corresponding each other, separates with insulating material between the two, reaches the purpose that is electrically insulated.
2, magnetic field generating spare is a permanent magnet
When institute's picture displayed is fixed image, such as showing that window, outdoor advertising plate, indoor static mural painting etc. need not change the display device of picture, can be used as magnetic field generating spare with permanent magnet, reach the effect that shows fixed image.
As shown in Figure 3, permanent magnet 43 is formed on the attaching substrates 5, according to wanting the picture displayed content to arrange permanent magnet 43.Such as showing " AE " two letters; Then can permanent magnet be arranged in the pattern of " AE " on attaching substrates; Other place of attaching substrates need not be provided with permanent magnet; This other local owing to can not have magnetic field, thereby the state of this other local corresponding magnetic liquid crystal molecule immobilizes all the time, can not rotate all the time.In addition, can be provided with one in addition towards display panels emission beam light source and light source switch, when needs display frame content, open light source switch, at this moment, the magnetic liquid crystal molecule rotates under the driving in the magnetic field that permanent magnet produces, and reaches the effect of demonstration.
The shape of permanent magnet, size, pole orientation are adjustment can be set according to actual needs.
Wherein, preferably, above-mentioned magnetic field generating spare can adopt the one-domain structure shown in Figure 1B to arrange, and also can adopt multidomain structure to arrange (can be with reference to figure 4, the farmland number can be provided with adjustment as required) or other arrangement mode, specifically can be provided with as required.One subpixels can corresponding one or more magnetic field generating spares.
When magnetic field generating spare adopts multidomain structure to arrange; There is angle in the magnetic field line direction in the magnetic field of two adjacent each self-generatings of magnetic field generating spare; Also present multidomain structure after the magnetic liquid crystal molecule is rotated and arrange in magnetic field, compare one-domain structure and arrange the visual angle that has increased display panel; Reduce aberration, improved display effect.
Wherein, As shown in Figure 5; When magnetic field generating spare is electromagnetism group and electromagnetism group when adopting multidomain structure to arrange (the farmland number can be provided with adjustment as required), same row's electromagnetism group or adjacent several electromagnetism groups can shared leads, are connected with data line 9 with reception data-signal, the other end by the drain electrode of an end of that shared root lead through thin film transistor (TFT) to be connected with electrode 10; Form the loop, make the electromagnetism group of shared this lead can generate magnetic field to drive the rotation of magnetic liquid crystal molecule.
In addition, preferably, shown in Fig. 6 A, 6B, also can be provided with first alignment film 61 between magnetic liquid crystal layer and the color membrane substrates 1; Also can be provided with second alignment film 62 between magnetic liquid crystal layer and the glass substrate 2.
Utilize first alignment film 61 and second alignment film 62, arrange (shown in Fig. 6 A) perpendicular to glass substrate 2 when may command magnetic liquid crystal molecule in magnetic field is zero or be parallel to glass substrate 2 arrangements (shown in Fig. 6 B), concrete realization can be with reference to prior art.
In addition, shown in Fig. 6 A, the 6B, also can be attached with first polaroid 71 on the surface of the glass substrate dorsad 2 of color membrane substrates 1 for another example; Also can be attached with second polaroid, 72, the first polaroids 71 on the surface of the color membrane substrates dorsad 1 of glass substrate 2 can be by 90 ° of vertical placements with the absorption axes of second polaroid 72.
Introduce the principle of work of above-mentioned display panels below.
One, the principle of work of the display panels shown in Fig. 6 A is:
Like Fig. 6 A, it is magnetic field when being zero that magnetic field generating spare 4 does not generate magnetic field, and the magnetic liquid crystal molecule is arranged perpendicular to glass substrate 2, rotation; Vertical setting of absorption axes with first polaroid 71 and second polaroid 72; Then this moment, light forms linearly polarized light through second polaroid 72, behind the magnetic liquid crystal molecule that linearly polarized light is arranged perpendicular to glass substrate 2 through glass substrate 2, fast axle (or slow axis), the color membrane substrates 1; The polarisation of light direction does not change; Just absorbed, thereby light can't see through first polaroid 71, has realized dark attitude effect by the extinction axle of first polaroid 71;
Like Fig. 7 A, behind magnetic field generating spare 4 generation magnetic fields, the magnetic liquid crystal molecule is pressed magnetic field line direction paramagnetic and is arranged, and rotates; Light forms linearly polarized light through second polaroid 72, and linearly polarized light is through glass substrate 2, and the polarization direction does not change; But when the magnetic liquid crystal molecule behind overshoot; Because the anisotropy of magnetic liquid crystal molecule makes the polarisation of light direction that variation take place, through color membrane substrates 1; See through from the light transmission shaft of second polaroid 71, realized bright attitude effect.
Two, the principle of work of the display panels shown in Fig. 6 B is:
Like Fig. 6 B, it is magnetic field when being zero that magnetic field generating spare 4 does not generate magnetic field, and the magnetic liquid crystal molecule is parallel to glass substrate 2 arranges rotation; With vertical setting of absorption axes of first polaroid 71 and second polaroid 72, then this moment, light forms linearly polarized light through second polaroid 72; Linearly polarized light is through glass substrate 2, and glass substrate 2 is arranged because the magnetic liquid crystal molecule is parallel to, not rotation, therefore; Light finally passes magnetic liquid crystal molecule, color membrane substrates 1, and the polarisation of light direction does not change, and is just absorbed by the extinction axle of first polaroid 71; Thereby light can't see through first polaroid 71, has realized dark attitude effect;
Like Fig. 7 B, behind magnetic field generating spare 4 generation magnetic fields, the magnetic liquid crystal molecule is pressed magnetic field line direction paramagnetic and is arranged, and rotates; Light forms linearly polarized light through second polaroid 72; After linearly polarized light is parallel to magnetic liquid crystal molecule that glass substrate 2 arranges, color membrane substrates 1 through glass substrate 2, fast axle (or slow axis); Because the anisotropy of magnetic liquid crystal molecule makes the polarisation of light direction that variation take place, through color membrane substrates 1; See through from the light transmission shaft of second polaroid 71, realized bright attitude effect.
Three, shown in Fig. 7 C; The two field drives magnetic liquid crystal molecule rotations of display panels utilization reach the purpose of demonstration; Principle of work can no longer detail (two magnetic fields can be applicable to the situation that the magnetic liquid crystal molecule is parallel to substrate equally) with reference to above-mentioned principle of work about Fig. 7 A here.Two field drives can reduce the driving voltage of electromagnetism group.
In the above-mentioned display panels; The magnetic field intensity that magnetic field generating spare generates is the key factor that influences display effect, in addition, and when magnetic field generating spare is the electromagnetism group; The coil number of the strength of current of lead, lead coiled conductor, the structural parameters of conductor etc. all can influence the magnetic field intensity of generation in the electromagnetism group; In addition, the spacing between conductor is also influential to display effect, more than each parameter all adjustment can be set according to actual needs.
The utility model embodiment provides a kind of liquid crystal indicator, the above-mentioned display panels that the display panels of this liquid crystal indicator provides for the utility model embodiment.
The above is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the said principle of the utility model, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (10)
1. display panels comprises:
Color membrane substrates;
Glass substrate is oppositely arranged with said color membrane substrates is parallel;
It is characterized in that said display panels also comprises:
Magnetic liquid crystal layer with magnetic liquid crystal molecule is between said color membrane substrates and said glass substrate;
Be used to produce magnetic field to drive the magnetic field generating spare of said magnetic liquid crystal molecule rotation, be formed on the attaching substrates, and corresponding with the sub-pixel on the said color membrane substrates, wherein, said attaching substrates is said color membrane substrates and/or said glass substrate.
2. display panels as claimed in claim 1 is characterized in that,
Said magnetic field generating spare is the electromagnetism group;
Wherein, said electromagnetism group comprises conductor and the lead that twines said conductor.
3. display panels as claimed in claim 2 is characterized in that, said display panels also comprises:
Gate line is formed on the said attaching substrates;
Data line is formed on the said attaching substrates, intersects with said gate line and is electrically insulated;
Thin film transistor (TFT) is formed on the said attaching substrates, and the grid of said thin film transistor (TFT) connects said gate line, source electrode and connects first end that said data line, drain electrode connect said lead;
Electrode is formed on the said attaching substrates, is electrically insulated with said drain electrode, is connected with second end of said lead.
4. display panels as claimed in claim 1 is characterized in that,
Said magnetic field generating spare is a permanent magnet.
5. like arbitrary described display panels in the claim 1 to 4, it is characterized in that,
Said magnetic field generating spare adopts one-domain structure or multidomain structure to arrange.
6. like display panels arbitrary in the claim 1 to 4, it is characterized in that,
Said magnetic liquid crystal molecule is the paramagnetism liquid crystal molecule.
7. display panels as claimed in claim 6 is characterized in that,
Said magnetic liquid crystal molecule perhaps is parallel to said glass substrate perpendicular to said glass substrate arrangement and arranges when said magnetic field intensity is zero.
8. like arbitrary described display panels in the claim 1 to 4, it is characterized in that,
Be provided with first alignment film between said magnetic liquid crystal layer and the said color membrane substrates;
Be provided with second alignment film between said magnetic liquid crystal layer and the said glass substrate.
9. display panels as claimed in claim 8 is characterized in that,
Be attached with first polaroid on the surface of the said glass substrate dorsad of said color membrane substrates;
Be attached with second polaroid on the surface of the said color membrane substrates dorsad of said glass substrate.
10. a liquid crystal indicator is characterized in that, comprises arbitrary described display panels in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202859810U CN202171715U (en) | 2011-08-08 | 2011-08-08 | Liquid crystal display panel and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202859810U CN202171715U (en) | 2011-08-08 | 2011-08-08 | Liquid crystal display panel and liquid crystal display device |
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| CN202171715U true CN202171715U (en) | 2012-03-21 |
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| CN2011202859810U Expired - Lifetime CN202171715U (en) | 2011-08-08 | 2011-08-08 | Liquid crystal display panel and liquid crystal display device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106537234A (en) * | 2014-04-07 | 2017-03-22 | 加利福尼亚大学董事会 | Highly tunable magnetic liquid crystals |
| CN109298555A (en) * | 2018-10-25 | 2019-02-01 | 南开大学 | Terahertz magnetic nano-liquid crystal phase-shifter and preparation method thereof |
| CN110908204A (en) * | 2019-11-19 | 2020-03-24 | 华南师范大学 | Magnetic response liquid crystal intelligent window |
| CN112068339A (en) * | 2020-09-04 | 2020-12-11 | 昆山龙腾光电股份有限公司 | Display panel with switchable viewing angle and display device |
| CN114270253A (en) * | 2019-09-05 | 2022-04-01 | 脸谱科技有限责任公司 | Magnetic field driven liquid crystal patterning control system |
-
2011
- 2011-08-08 CN CN2011202859810U patent/CN202171715U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106537234A (en) * | 2014-04-07 | 2017-03-22 | 加利福尼亚大学董事会 | Highly tunable magnetic liquid crystals |
| EP3129828A4 (en) * | 2014-04-07 | 2017-11-29 | The Regents of The University of California | Highly tunable magnetic liquid crystals |
| US10359678B2 (en) | 2014-04-07 | 2019-07-23 | The Regents Of The University Of California | Highly tunable magnetic liquid crystals |
| CN109298555A (en) * | 2018-10-25 | 2019-02-01 | 南开大学 | Terahertz magnetic nano-liquid crystal phase-shifter and preparation method thereof |
| CN114270253A (en) * | 2019-09-05 | 2022-04-01 | 脸谱科技有限责任公司 | Magnetic field driven liquid crystal patterning control system |
| CN110908204A (en) * | 2019-11-19 | 2020-03-24 | 华南师范大学 | Magnetic response liquid crystal intelligent window |
| CN110908204B (en) * | 2019-11-19 | 2022-08-12 | 华南师范大学 | Magnetic response liquid crystal intelligent window |
| CN112068339A (en) * | 2020-09-04 | 2020-12-11 | 昆山龙腾光电股份有限公司 | Display panel with switchable viewing angle and display device |
| CN112068339B (en) * | 2020-09-04 | 2022-04-22 | 昆山龙腾光电股份有限公司 | Display panel with switchable viewing angle and display device |
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| GR01 | Patent grant | ||
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Granted publication date: 20120321 |