CN101078819A - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
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- CN101078819A CN101078819A CN 200610060747 CN200610060747A CN101078819A CN 101078819 A CN101078819 A CN 101078819A CN 200610060747 CN200610060747 CN 200610060747 CN 200610060747 A CN200610060747 A CN 200610060747A CN 101078819 A CN101078819 A CN 101078819A
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Abstract
The invention relates to a LCD device, comprising a first base plate, a second base plate faced to the first base plate, a liquid crystal layer between the first base plate and the second base plate, a first direction-distribution film set between the first base plate and the liquid crystal layer, a second direction-distribution film set between the second base plate and the liquid crystal layer, and a passivation layer set between the second direction-distribution film and the second base plate. The liquid crystal layer is the optical compensating bending arrangement structure. The thickness of passivation is different.
Description
Technical field
The invention relates to a kind of liquid crystal indicator, especially have optical compensation curved arrangement (Optically Compensated Bend, OCB) liquid crystal indicator of structure about a kind of.
Background technology
Liquid crystal indicator because of have low diathermaneity, characteristics such as volume is compact and power consumption is low, fields such as mobile phone, personal digital assistant, notebook computer, PC and TV have been widely used in, along with the maturation and the innovation of correlation technique, its kind is various day by day.
Yet also there are shortcomings such as reaction velocity is slow, the visual angle is low in liquid crystal indicator simultaneously, and is particularly unfavorable for video product.At this defective, various wide viewing angle technology consequentialities, change (In-plane Switching as twisted nematic liquid crystal+visual angle expansion film combination (TN+Film) technology, in-plane, IPS) technology, multizone homeotropic alignment (Multi-DomainVertical Alignment, MVA) technology and optical compensation curved arrangement (OpticallyCompensated Bend, OCB) technology or the like.Wherein, optical compensation curved permutation technology with liquid crystal material newly developed and optical compensation films as the core material, it is a kind of optical compensation technology of high speed reaction, the visual angle reaches more than 160 degree, reaction time is the fastest to be foreshortened in the 10ms, and the improvement of excitation is more than three times of conventional thin film transistor LCD, is used for amusement audiovisual type liquid crystal indicator more.
Please refer to Fig. 1, it is a kind of structural representation of prior art liquid crystal indicator.Liquid crystal indicator 1 applied optics compensated bend permutation technology, it comprises that one first substrate 11, one second substrate 12, are sandwiched in the liquid crystal layer 13 between first substrate 11 and second substrate 12, the stacked a pair of optical axis optical compensation films 111 in first substrate, 11 outsides and second Polarizer 122 that one first Polarizer 112 and is arranged on second substrate, 12 outsides of being arranged on.Wherein, the liquid crystal molecule of this liquid crystal layer 13 is bend alignment (Bend Alignment), in the plane vertical with first, second substrate 11,12, the liquid crystal molecule 131 in the middle of being positioned at is perpendicular to first, second substrate 11,12, and liquid crystal molecule is the symmetric offset spread structure up and down.
Please refer to Fig. 2, is the liquid crystal molecule action synoptic diagram of the described liquid crystal indicator of Fig. 1.Liquid crystal indicator 1 is before start, and its liquid crystal molecule is in (SplayAlignment) state of arrangement that stretches.After the start, before normal demonstration work begins, need to add a changing voltage between first, second substrate 11,12, make liquid crystal molecule be converted to the bend alignment state from stretching ordered state, this process is the initialization process process.When initialization is finished dealing with, liquid crystal molecule is in the bend alignment state, applies after the display voltage, because liquid crystal molecule is closely arranged, the action of center section liquid crystal molecule is with tractive or promote whole liquid crystal cell, plays the effect of acceleration.Because Liquid Crystal Molecules Alignment is symmetry up and down, so because the phase deviation that lower part liquid crystal molecule birefringence causes can utilize the top liquid crystal molecule to offset voluntarily.In addition, in showing the course of work, the long axis of liquid crystal molecule of optical compensation curved pattern of rows and columns is all the time in a plane, need not picture and reverse (Twist Nematic, TN) liquid crystal molecule of pattern is done the action of distortion like that and is only needed crooked, comparatively speaking, only need make very little change just can reach preposition.
Though optical compensation curved pattern of rows and columns liquid crystal indicator reaction velocity under display working condition is very fast, yet all need to carry out initialization process ability operate as normal after each start, because this initialization time is oversize, and when impressed voltage during greater than critical voltage, some liquid crystal molecule can't be converted to the bend alignment state from stretching ordered state, so has a strong impact on the work of the liquid crystal indicator of applied optics compensated bend pattern of rows and columns.
Summary of the invention
In order to overcome the liquid crystal indicator long problem of initialization time of optical compensation curved pattern of rows and columns of tool in the prior art, the invention provides liquid crystal indicator rapidly of a kind of initialization time.
A kind of liquid crystal indicator, comprise one first substrate, one and second substrate, that is oppositely arranged of this first substrate be sandwiched in liquid crystal layer, between this first substrate and second substrate and be arranged on first alignment film between this first substrate and the liquid crystal layer, one is arranged on second alignment film and between this second substrate and the liquid crystal layer is arranged at passivation layer between second alignment film and second substrate, this liquid crystal layer is optical compensation curved arrangement architecture, and the thickness of this passivation layer is different.
Compared with prior art, because thereby the different liquid crystal layer formation certain height that makes of the thickness of passivation layer is poor, when the liquid crystal indicator start adds changing voltage, can make near the liquid crystal molecule that has in the liquid crystal layer difference in height be converted to the bend alignment state from stretching ordered state fast, and because the interlock power effect of liquid crystal molecule between and then drive near the conversion of liquid crystal molecule it makes liquid crystal indicator finish the initialization process process fast.
Description of drawings
Fig. 1 is a kind of structural representation of prior art liquid crystal indicator.
Fig. 2 is the liquid crystal molecule running synoptic diagram of liquid crystal indicator shown in Figure 1.
Fig. 3 is the floor map of liquid crystal indicator first embodiment of the present invention.
Fig. 4 is the sectional view of liquid crystal indicator of the present invention along Fig. 3 line IV-IV.
Fig. 5 is the structural representation of liquid crystal indicator second embodiment of the present invention.
Embodiment
Please refer to Fig. 3, is the floor map of liquid crystal indicator first embodiment of the present invention.This liquid crystal indicator 2 comprises many data lines that are parallel to each other 224, many and data line 224 vertically insulated crossing sweep trace 225 and a plurality of Minimum Areas that surrounded by this data line 224 and sweep trace 225.A plurality of pixel electrodes 228 electrically connect by on-off element and data line 224 and sweep trace 225, and are separately positioned within this Minimum Area.These pixel electrode 228 The corresponding area are viewing areas, and this data line 224 is non-display areas with sweep trace 225 The corresponding area.
, be the sectional view of liquid crystal indicator of the present invention please along Fig. 3 line IV-IV in the lump with reference to figure 4.This liquid crystal indicator 2 further comprise one first substrate 21, one and second substrate 22 and that is oppositely arranged of this first substrate 21 be sandwiched in liquid crystal layer 23 between this first substrate 21 and second substrate 22, the liquid crystal molecule tilt angle of this liquid crystal layer 23 is 0 °～15 °, and this liquid crystal layer 23 is optical compensation curved arrangement architecture (OCB).
One first optical compensation films 211 and one first Polarizer 212 are cascading at first substrate 21 and deviate from the outside of this liquid crystal layer 23, and one second optical compensation films 221 and one second Polarizer 222 are cascading and deviate from the outside of this liquid crystal layer 23 at second substrate 22.
One public electrode 218 and one first alignment film 219 are cascading in the inboard of first substrate 21, one insulation course 223, a passivation layer (Passivation Layer) 227 and 1 second alignment film 229 are cascading in the inboard of second substrate 22, and this first alignment film 219 and second alignment film 229 are horizontal direction matching (Parallel Alignment).
Because there is certain angle of inclination near the liquid crystal molecule that is in the projection 2271 because of the effect of orientation power is more weak, so start adds after the changing voltage, this part liquid crystal molecule can be converted to the bend alignment state from this heeling condition rapidly, and because the interlock power effect of liquid crystal molecule between and then drive near the conversion of liquid crystal molecule it can reduce initialization time.Also because the liquid crystal layer of each viewing area with its all around the liquid crystal layer of non-display area all have difference in height, so liquid crystal molecule is almost all changed, and be unlikely the situation that the part liquid crystal molecule is not converted to the bend alignment state appears.
In addition, the shape of this projection 2271 is not limited to rectangle, also can be shapes such as triangle, trapezoidal and semicircle, can design as the case may be.
Please refer to Fig. 5, is the structural representation of liquid crystal indicator second embodiment of the present invention.This liquid crystal indicator 3 is with the difference of the first embodiment liquid crystal indicator 2: the thickness of these passivation layer 327 corresponding viewing areas and non-display area is different, to thickness that should the viewing area greater than to thickness that should non-display area, on second substrate 32, form a plurality of slits (Slit) 3271, make the thickness of liquid crystal layer 33 different.The shape of this slit 3271 is rectangles, and its degree of depth is less than or equal to half of liquid crystal layer height, and its width is more than or equal to the width of data line 324 or sweep trace (figure does not show).
Because there is certain angle of inclination near the liquid crystal molecule that is in the slit 3271 because of the effect of orientation power is more weak, so start adds after the changing voltage, this part liquid crystal molecule can be converted to the bend alignment state from this heeling condition rapidly, and because the interlock power effect of liquid crystal molecule between and then drive near the conversion of liquid crystal molecule it can reduce initialization time.Because all there are difference in height in the liquid crystal layer of each viewing area and the liquid crystal layer of non-display area, so liquid crystal molecule is almost all changed, and be unlikely the situation that the part liquid crystal molecule is not converted to the bend alignment state appears also.
In addition, the shape of this slit 3271 is not limited to rectangle, also can be shapes such as triangle, trapezoidal and semicircle, can design as the case may be.
Claims (10)
1. liquid crystal indicator, comprise one first substrate, one and second substrate, that is oppositely arranged of this first substrate be sandwiched in liquid crystal layer, between this first substrate and this second substrate and be arranged on first alignment film between this first substrate and this liquid crystal layer, one is arranged on second alignment film and between this second substrate and this liquid crystal layer is arranged at passivation layer between this second alignment film and this second substrate, this liquid crystal layer is optical compensation curved arrangement architecture, it is characterized in that: the thickness of this passivation layer is different.
2. liquid crystal indicator as claimed in claim 1, it is characterized in that: further comprise many data lines that are parallel to each other, many and the vertically insulated crossing sweep trace of this data line, a plurality of by the Minimum Area that this data line and this sweep trace surrounded, a plurality of pixel electrode and on-off element, this pixel electrode electrically connects by this on-off element and this data line and this sweep trace, and is arranged at respectively within this Minimum Area.
3. liquid crystal indicator as claimed in claim 2, it is characterized in that: further comprise a plurality of viewing areas and non-display area, this viewing area is this pixel electrode The corresponding area, and this non-display area is this data line and this sweep trace The corresponding area.
4. liquid crystal indicator as claimed in claim 3, it is characterized in that: to passivation layer thickness that should non-display area greater than to passivation layer thickness that should the viewing area, on this second substrate, form a plurality of projections, this projection highly be less than or equal to half of liquid crystal layer height, width is more than or equal to the width of data line or sweep trace.
5. liquid crystal indicator as claimed in claim 4 is characterized in that: the shape of this projection is rectangle, triangle, trapezoidal and semicircle wherein a kind of.
6. liquid crystal indicator as claimed in claim 3, it is characterized in that: to passivation layer thickness that should the viewing area greater than to passivation layer thickness that should non-display area, on this second substrate, form a plurality of slits, the degree of depth of this slit is less than or equal to half of liquid crystal layer height, and width is more than or equal to the width of data line or sweep trace.
7. liquid crystal indicator as claimed in claim 6 is characterized in that: the shape of this slit is rectangle, triangle, trapezoidal and semicircle wherein a kind of.
8. liquid crystal indicator as claimed in claim 1 is characterized in that: this first both alignment layers and this second both alignment layers are horizontal direction matchings.
9. liquid crystal indicator as claimed in claim 8 is characterized in that: the tilt angle of the liquid crystal molecule of this liquid crystal layer is 0 °～15 °.
10. liquid crystal indicator as claimed in claim 1, it is characterized in that: further comprise one first optical compensation films and one second optical compensation films, this first optical compensation films is arranged on the side that this first substrate deviates from this liquid crystal layer, and this second optical compensation films is arranged on the side that this second substrate deviates from this liquid crystal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610060747 CN101078819A (en) | 2006-05-24 | 2006-05-24 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610060747 CN101078819A (en) | 2006-05-24 | 2006-05-24 | Liquid crystal display |
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| Publication Number | Publication Date |
|---|---|
| CN101078819A true CN101078819A (en) | 2007-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610060747 Pending CN101078819A (en) | 2006-05-24 | 2006-05-24 | Liquid crystal display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130370A (en) * | 2020-09-30 | 2020-12-25 | 厦门天马微电子有限公司 | Display panel and display device |
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2006
- 2006-05-24 CN CN 200610060747 patent/CN101078819A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130370A (en) * | 2020-09-30 | 2020-12-25 | 厦门天马微电子有限公司 | Display panel and display device |
| CN112130370B (en) * | 2020-09-30 | 2022-08-05 | 厦门天马微电子有限公司 | Display panel and display device |
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