CN202548494U - Blue-phase liquid crystal panel and display device - Google Patents
Blue-phase liquid crystal panel and display device Download PDFInfo
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- CN202548494U CN202548494U CN2012202131954U CN201220213195U CN202548494U CN 202548494 U CN202548494 U CN 202548494U CN 2012202131954 U CN2012202131954 U CN 2012202131954U CN 201220213195 U CN201220213195 U CN 201220213195U CN 202548494 U CN202548494 U CN 202548494U
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- liquid crystal
- phase liquid
- substrate
- crystal panel
- blue phase
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Abstract
The utility model discloses a blue-phase liquid crystal panel and a display device and relates to the field of design and manufacturing of a liquid crystal panel and a display device and is used for reducing the driving voltage of the blue-phase liquid crystal panel. The blue-phase liquid crystal panel comprises a first substrate and a second substrate a blue-phase liquid crystal layer, a first polarizer, a second polarizer, pixel electrodes, common electrodes, a reflecting layer and a second prism layer, wherein the first substrate and the second substrate are formed in an opposite-box mode; the blue-phase liquid crystal layer is clamped between the two substrates; the first polarizer is positioned outside the first substrate; the second polarizer is positioned outside the second substrate; the pixel electrodes are positioned inside the first substrate and are arranged in an array mode; the common electrodes are positioned inside the second substrate; the reflecting layer is positioned inside the first substrate; a second prism layer is positioned between the blue-phase liquid crystal layer and the second polarizer; and the second prism layer is used for ensuring incident light to be deflected. The blue-phase liquid crystal panel and the display device are applicable for the design and the manufacturing of the reflective blue-phase liquid crystal panel.
Description
Technical field
The utility model relates to the design and the manufacturing field of liquid crystal panel, display device, relates in particular to a kind of reflective blue phase liquid crystal panel and display device.
Background technology
According to the difference that adopts light source type, liquid crystal indicator can be divided into three kinds of transmission-type, reflective and Transflectives.Wherein, reflective LCD device need not to be provided with backlight, has energy-saving advantages, therefore is widely used in the display device of electronic product.
In order to promote the display quality of LCD, realize higher contrast, response time and the wideer visual angle of watching faster, the blue phase liquid crystal material with rapid answer characteristic comes into one's own gradually.Indigo plant is a kind of a kind of liquid crystal phase between isotropic phase and cholesteric phase mutually, and the temperature range of its existence is very narrow, approximately has only 1 ℃ temperature range.But discovered in recent years exists temperature range to widen greatly through polymer-stabilized later blue phase liquid crystal, can satisfy the serviceability temperature scope as liquid crystal display material basically.
Blue phase liquid crystal display has following characteristic as having most the display of future generation of potential: it is big that (1) blue phase liquid crystal display has an angle of visibility, the dark good characteristics of attitude.(2) compole is short during the theoretical response of blue phase liquid crystal display, can reach below the Millisecond.(3) blue phase liquid crystal display does not need other the necessary oriented layer of various LCDs, thereby has reduced manufacturing cost, has simplified manufacturing process.
But there are two very big technical barriers in blue phase liquid crystal display, and driving voltage is high and optical efficiency is low.
The utility model content
The embodiment of the utility model provides a kind of blue phase liquid crystal panel, in order to reduce the blue phase liquid crystal panel drive voltage and to improve optical efficiency.
For achieving the above object, the embodiment of the utility model adopts following technical scheme:
The utility model provides a kind of reflective blue phase liquid crystal panel; Comprise: to first substrate and second substrate of box moulding; And be folded in the blue phase liquid crystal layer between two substrates, and be positioned at first polaroid in said first substrate outside, be positioned at second polaroid in said second substrate outside; Said blue phase liquid crystal panel; Also comprise: the pixel electrode that is positioned at said first substrate inboard and array format; Be positioned at the inboard public electrode of said second substrate; And the reflection horizon that is positioned at said first substrate inboard, second layers of prisms between said blue phase liquid crystal layer and said second polaroid; Said second layers of prisms is used to make incident ray generation deviation.
The present invention also provides a kind of display device, and it comprises above-mentioned blue phase liquid crystal panel.
Blue phase liquid crystal panel and display device that the utility model embodiment provides; Through being arranged on the inboard pixel electrode of first substrate public electrode inboard with being arranged on second substrate; Under the situation of energising, just uniform vertical electric field can be produced, the driving voltage of blue phase liquid crystal display can be reduced like this; And; For realizing the demonstration of blue phase liquid crystal panel under vertical electric field, the utility model is set up second layers of prisms in the blue phase liquid crystal panel, the light generation deviation that makes the incident of script vertical substrate; Oblique like this light is through the blue phase liquid crystal layer under the vertical electric field driving time; Will corresponding generation optical path difference, thus realize transmitance through the variation control light of vertical electric field intensity, and then reduce the blue phase liquid crystal panel drive voltage and improve optical efficiency.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of reflective blue phase liquid crystal panel that Fig. 1 provides for the utility model when making alive not;
Fig. 2 is the structural representation of reflective blue phase liquid crystal panel when applying voltage shown in Figure 1.
Reference numeral:
001-first substrate, 002-second substrate, 003-blue phase liquid crystal layer, 004-first polaroid, 005-second polaroid, 006-pixel electrode, 007-public electrode, 008-reflection horizon; 102-second layers of prisms.
Embodiment
Blue phase liquid crystal panel of the prior art is driven by horizontal component of electric field, and this blue phase liquid crystal panel drive voltage is than higher.The electric field line of the electric field of substrate (promptly perpendicular to) is more even because vertical electric field, helps reducing the blue phase liquid crystal panel drive voltage, so the utility model provides a kind of blue phase liquid crystal panel that is driven by vertical electric field.
At first briefly introduce the characteristic of blue phase liquid crystal molecule.When not applying voltage, the blue phase liquid crystal molecule has isotropic characteristics; When applying voltage, the blue phase liquid crystal molecule then has birefringent characteristic along a direction, and the blue phase liquid crystal molecule is along the direction orientation of electric field.
Because the above-mentioned characteristic of blue phase liquid crystal molecule makes if be the type of conversion driving electric field, can not realize the normal Presentation Function of blue phase liquid crystal panel.Concrete, when making alive not, the blue phase liquid crystal molecule is the isotropy attitude, and like this, incident ray will can not produce optical path difference through blue phase liquid crystal layer, just not change the polarization direction yet.When applying voltage, the blue phase liquid crystal molecule is under the effect of vertical electric field, and its major axis is along the direction of the electric field line of this vertical electric field; Like this, incident ray will can not produce optical path difference through blue phase liquid crystal layer, can not change the polarization direction equally.Owing to no matter whether applying voltage, the polarization direction of incident ray can not change to some extent, thereby just can't control the transmitance of light through the size that applies voltage, just can't realize the demonstration of blue phase liquid crystal panel yet.
For making the blue phase liquid crystal panel under the driving of vertical electric field, can show normally that the utility model provides a kind of reflective blue phase liquid crystal panel.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Like Fig. 1, shown in 2; The utility model provides a kind of reflective blue phase liquid crystal panel; Comprise: to first substrate 001 and second substrate 002 of box moulding; And be folded in the blue phase liquid crystal layer 003 between two substrates, and be positioned at first polaroid 004 in said first substrate outside, be positioned at second polaroid 005 in said second substrate outside; This blue phase liquid crystal panel also comprises: the pixel electrode 006 that is positioned at said first substrate inboard and array format; Be positioned at the inboard public electrode 007 of said second substrate; And the reflection horizon 008 that is positioned at said first substrate inboard, second layers of prisms 102 between said blue phase liquid crystal layer 003 and said second polaroid 005; Said second layers of prisms 102 is used to make incident ray generation deviation.
Wherein, the inboard is meant a side nearer apart from blue phase liquid crystal layer in all embodiment of the utility model, and the outside is meant a side far away apart from blue phase liquid crystal layer.
Said blue phase liquid crystal layer 003 comprises the blue phase liquid crystal molecule.
The hyaline layer of the arbitrary shape of refraction takes place for making light in said second layers of prisms 102; Preferably, two of said second layers of prisms 102 faces are respectively plane and the wavy folding face of symmetric triangular.In all embodiment of the utility model; The wavy folding face of symmetric triangular is made description below: the wavy folding face of so-called symmetric triangular does; Xsect is the folding face that the intersection of symmetric triangular ripple and each adjacent two sides parallels, and the laterally inclined angle of each side of the wavy folding face of symmetric triangular all equates; With reference to figure 1,2, all represent with a1; So-called laterally inclined angle is meant the angle of side and base plan.
Preferably, said plane is the outside of said second layers of prisms 102, the inboard that the wavy folding face of said symmetric triangular is said second layers of prisms 102.Make the incident ray to be regarded as vertical substrate like this time for the first time through the wavy folding face of the symmetric triangular of second layers of prisms 102; Change once the direction of propagation of light; After reflection, again through making the outgoing of light vertical substrate after the wavy folding face refraction of symmetric triangular.Certainly, if the plane as the inboard, and the wavy folding face of symmetric triangular also is fine as the outside.
Further preferred, the laterally inclined angle of each side of the wavy folding face of the symmetric triangular of this second layers of prisms 102 representes with a1 that all its scope is 30 °～60 °, and wherein, boundary value also is available value for 30 ° and 60 °, and preferred value can be 42.5 °.
In addition; From principle; Second layers of prisms 102 can place between the blue phase liquid crystal layer 003 and second polaroid 005 arbitrary layer position, but for the influence of 102 pairs of liquid crystal panel manufacture crafts of second layers of prisms of reducing addition as far as possible, preferred; Referenced in schematic, with second layers of prisms 102 between second substrate 002 and second polaroid 005.
How to realize that in the face of the above-mentioned reflective blue phase liquid crystal panel that provides Presentation Function is described in detail down.
The structural representation that Fig. 1 is the blue phase liquid crystal panel when making alive not.Incident ray perpendicular to substrate becomes linearly polarized light through second polaroid 005, and this linearly polarized light becomes oblique light after for the first time through second layers of prisms 102.Oblique light can not produce optical path difference through the blue phase liquid crystal layer 003 of isotropy attitude, and once more through the refraction of second layers of prisms 102, the direction of propagation of oblique light will be adjusted into the emergent ray perpendicular to substrate.The polarization direction of emergent ray is because the cause of reflection take place to change the variation of 90 degree, thus emergent ray can be blocked fully by second polaroid 005, thereby realize the demonstration of dark attitude.
Fig. 2 is the structural representation of blue phase liquid crystal panel when making alive.Incident ray perpendicular to substrate becomes linearly polarized light through second polaroid 005; This linearly polarized light becomes oblique light after for the first time through second layers of prisms 102; The blue phase liquid crystal molecule that oblique light is arranged (promptly perpendicular to substrate) through axis in electric field line twice can produce optical path difference; So just can adjust the polarization direction of light through the intensity that changes vertical electric field, thus the transmitance of control light; Can the direction of propagation of oblique light be adjusted into the emergent ray perpendicular to substrate through second layers of prisms 102 once more.Just can realize the Presentation Function of blue phase liquid crystal panel through the voltage of adjustment pixel electrode.
The material of above-mentioned second layers of prisms 102 respectively can be in glass, silicon wafer material, macromolecular material or the resin material a kind of.
Need to prove; For clearly describing the claimed structure of the utility model; So in each embodiment and accompanying drawing, do simplification or omit processing with the incoherent structure of the utility model; And in each embodiment and accompanying drawing, do and simplify or to omit the structure of handling all be those skilled in the art obtains easily not making under the creative work prerequisite, do not give unnecessary details so do not add at present embodiment.
The reflective blue phase liquid crystal panel that the utility model embodiment provides; Through being arranged on the inboard pixel electrode of first substrate public electrode inboard with being arranged on second substrate; Under the situation of energising, just uniform vertical electric field can be produced, the driving voltage of blue phase liquid crystal display can be reduced like this; And; For realizing the demonstration of blue phase liquid crystal panel under vertical electric field; The utility model is set up second layers of prisms in the blue phase liquid crystal panel, the light generation deviation that makes the incident of script vertical substrate, and oblique like this light is through the blue phase liquid crystal layer under the vertical electric field driving time; Will corresponding generation optical path difference, thus realize transmitance through the variation control light of vertical electric field intensity.Because vertical electric field is more even, thereby has reduced the blue phase liquid crystal panel drive voltage, further can under identical driving voltage, improve optical efficiency.
Present embodiment also provides a kind of display device, and it comprises above-mentioned any blue phase liquid crystal panel, and said display device can have the product or the parts of any Presentation Function for LCD, LCD TV, DPF, mobile phone, panel computer etc.
Related layers of prisms can adopt following method to accomplish making among all embodiment of the utility model:
Method one, employing Mold Making layers of prisms.
Concrete, adopt modes such as wet etching or machining to produce mould earlier, re-use the mould of making and adopt moulding by casting or transfer printing molded mode to make layers of prisms.
Method two, the existing die coating technique of employing are made layers of prisms.
Concrete, at first adopt grating roller that uncured raw material film material is applied mechanical pressure with similar prismatic protrusions structure, make it under the transfer printing effect of grating roller, form the structure of layers of prisms; Then, form layers of prisms through UV or a series of curing process such as infrared.
Method three, employing mantle forming technique are made layers of prisms.
Concrete, adopt grating roller with the pairing sunk structure of similar prismatic protrusions, by the water dropper above the grating roller raw material is dripped in the sunk structure earlier, make it in the sunk structure of grating roller, form the structure of prism, be transferred to again on the corresponding substrate.Then, form layers of prisms through UV or a series of curing process such as infrared.
The above; Be merely the embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technician who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain of said claim.
Claims (7)
1. a blue phase liquid crystal panel comprises: to first substrate and second substrate of box moulding, and be folded in the blue phase liquid crystal layer between two substrates, be positioned at first polaroid in said first substrate outside, be positioned at second polaroid in said second substrate outside; It is characterized in that; Also comprise: the pixel electrode that is positioned at said first substrate inboard and array format; Be positioned at the inboard public electrode of said second substrate; And the reflection horizon that is positioned at said first substrate inboard, second layers of prisms between said blue phase liquid crystal layer and said second polaroid; Said second layers of prisms is used to make incident ray generation deviation.
2. blue phase liquid crystal panel according to claim 1 is characterized in that, two faces of said second layers of prisms are respectively plane and the wavy folding face of symmetric triangular.
3. blue phase liquid crystal panel according to claim 2 is characterized in that, the scope of the laterally inclined angle of the wavy folding face of said symmetric triangular is 30 °～60 °.
4. blue phase liquid crystal panel according to claim 3 is characterized in that, the laterally inclined angle of the wavy folding face of said symmetric triangular is 42.5 °.
5. according to each described blue phase liquid crystal panel of claim 2-4, it is characterized in that said plane is the outside of said second layers of prisms, the inboard that the wavy folding face of said symmetric triangular is said second layers of prisms.
6. according to each described blue phase liquid crystal panel of claim 1-4, it is characterized in that said second layers of prisms is between said second substrate and said second polaroid.
7. a display device is characterized in that, comprising: each described blue phase liquid crystal panel of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202131954U CN202548494U (en) | 2012-05-11 | 2012-05-11 | Blue-phase liquid crystal panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202131954U CN202548494U (en) | 2012-05-11 | 2012-05-11 | Blue-phase liquid crystal panel and display device |
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| Publication Number | Publication Date |
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| CN202548494U true CN202548494U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012202131954U Expired - Lifetime CN202548494U (en) | 2012-05-11 | 2012-05-11 | Blue-phase liquid crystal panel and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681129A (en) * | 2018-07-11 | 2018-10-19 | 上海交通大学 | A kind of non-dependent silicon-based liquid crystal device of polarization |
-
2012
- 2012-05-11 CN CN2012202131954U patent/CN202548494U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681129A (en) * | 2018-07-11 | 2018-10-19 | 上海交通大学 | A kind of non-dependent silicon-based liquid crystal device of polarization |
| CN108681129B (en) * | 2018-07-11 | 2020-08-04 | 上海交通大学 | Polarization-independent silicon-based liquid crystal device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |