CN1949064A - Liquid crystal dispalying device - Google Patents
Liquid crystal dispalying device Download PDFInfo
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- CN1949064A CN1949064A CN 200510100412 CN200510100412A CN1949064A CN 1949064 A CN1949064 A CN 1949064A CN 200510100412 CN200510100412 CN 200510100412 CN 200510100412 A CN200510100412 A CN 200510100412A CN 1949064 A CN1949064 A CN 1949064A
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Abstract
The invention relates to liquid crystal display device. It includes two opposite base plates and liquid crystal layer. Each base plate has one plane inner transverse electric field switching unit. The crystal display device of the invention has wide visual angle, good chromaticity, and high penetration rate.
Description
[technical field]
The present invention relates to a kind of liquid crystal indicator.
[background technology]
Liquid crystal in the liquid crystal indicator itself is not had a characteristics of luminescence, and it reverses by the electric field controls liquid crystal molecule and realizes passing through or not passing through of light, thereby reaches the purpose of demonstration.In traditional liquid crystal indicator, form electrode on the surface of two substrate of glass, to form the electric field that the control liquid crystal molecule reverses, this electrode uses transparent material, and the electrode of two substrates is oppositely arranged, thereby forms and the perpendicular electric field of substrate surface.
Because liquid crystal molecule has dielectric anisotropy and electricity is led anisotropy, thereby under the control of this electric field, liquid crystal molecular orientation will be perpendicular to substrate surface, but because liquid crystal molecule is influenced by the absorption affinity of alignment film and the interaction force between liquid crystal molecule, making that liquid crystal molecule must be orientated can not be fully perpendicular to substrate surface, thereby influences the display effect of liquid crystal indicator.
A kind of prior art liquid crystal indicator as shown in Figure 1, this liquid crystal indicator 100 comprises a transverse electric field switch unit 140 and a passivation layer 143 in one first substrate 111, one second substrate 112, a liquid crystal layer 113, two polaroids 121 and 122, a colored filter 130, two both alignment layers 131 and 132, an insulation course 135, the plane.This first substrate 111 and this second substrate 112 are oppositely arranged; This liquid crystal layer 113 is between this first substrate 111 and this second substrate 112; These two polaroids 121 and 122 lay respectively at this first substrate 111 and this second substrate 112 and these liquid crystal layer 113 different sides, and these two polaroids 121 are vertical mutually with 122 polarizing axis (Polarizing Axis); This colored filter 130, this both alignment layers 131, this liquid crystal layer 113, this both alignment layers 132, this passivation layer 143 and this insulation course 135 are cascading between this first substrate 111 and this second substrate 112.Transverse electric field switch unit 140 comprises a public electrode 141 and a pixel electrode 142 in this plane.This public electrode 141 is arranged between this insulation course 135 and second substrate 112, and this pixel electrode 142 is arranged between this passivation layer 143 and this insulation course 135, and this public electrode 141 and this pixel electrode 142 spaces are provided with.
Both alignment layers 131 and 132 is used for controlling the initial orientation of liquid crystal molecule, and this both alignment layers 131 is identical with the polarizing axis direction of polaroid 122 with 132 orientation.Having a substrate in first substrate 111 and second substrate 112 at least is to adopt transparent material to make.Liquid crystal layer 113 is by forming to row (Nematic) type liquid crystal.Liquid crystal indicator 100 utilizes colored filter 130 to realize colored the demonstration.
Fig. 1 is during for making alive not, the synoptic diagram of these liquid crystal indicator 100 duties of living in.Under this state, owing to be not subjected to electric field action, the orientation of this liquid crystal molecule is identical with the orientation of both alignment layers 131 and 132, and this both alignment layers 131 is identical with the polarizing axis direction of polaroid 122 with 132 orientation.Therefore, the linearly polarized light (figure does not show) that enters liquid crystal layer 113 through this polaroid 122 just in time can pass through this liquid crystal layer 113, and polarization state does not change.In addition, polaroid 121 is vertical mutually with 122 polarization direction, so this linearly polarized light can not pass through polaroid 121, promptly this liquid crystal indicator 100 is in dark attitude.
When Fig. 2 is making alive, the synoptic diagram of these liquid crystal indicator 100 duties of living in.This public electrode 141 forms the electric field 114 that is basically parallel to first substrate 111 and second substrate 112 with pixel electrode 142, because liquid crystal molecule has dielectric anisotropy and electricity is led anisotropy, therefore under electric field 114 effects, reverse, make its orientation consistent with the direction of this electric field 114.Yet, there is certain angle in the polarization direction of the direction of this electric field 114 and polaroid 122, then the linearly polarized light (figure does not show) by polaroid 122 will produce birefringence when arriving liquid crystal molecule, thereby this linear polarization polarization state of light will change, and polaroid 121 is vertical mutually with 122 polarizing axis direction, therefore the part component of this linearly polarized light will be by polaroid 121, and promptly this liquid crystal indicator 100 is in bright attitude.
As mentioned above, this employing is parallel to the method that the electric field controls liquid crystal molecule of substrate reverses and is called " transverse electric field switches method in the plane " (In Plane Switching, IPS), should " transverse electric field switches method in the plane " use planar transverse electric field switching type liquid crystal display device specially, and adopt the liquid crystal indicator 100 of this method to have broader angle of visibility than traditional liquid crystal indicator.
This public electrode 141 all is arranged in this second substrate 112 with pixel electrode 142, and this liquid crystal layer 113 has certain thickness, make that to grasp ability from second substrate 112 liquid crystal molecule far away more in 142 pairs of liquid crystal layers 113 of this public electrode 141 and pixel electrode weak more, therefore can not under effect of electric field, fully reverse from second substrate, 112 liquid crystal molecules far away.When liquid crystal molecule can not be torqued into specified angle, the visual angle that causes liquid crystal indicator 100 is less, colourity is relatively poor and penetrance is lower.
[summary of the invention]
In order to solve the problem that the liquid crystal indicator visual angle is less in the prior art, colourity is relatively poor and penetrance is lower, be necessary to provide the liquid crystal indicator that a kind of visual angle is wide, colourity is preferable and penetrance is higher.
A kind of liquid crystal indicator comprises two substrates that are oppositely arranged and the liquid crystal layer between between two substrates, transverse electric field switch unit in each substrate tool one plane.
Compared to prior art, transverse electric field switch unit in each substrate tool one plane of this liquid crystal indicator, the electric field that the transverse electric field switch unit is positioned at liquid crystal layer both sides and formation in these two planes acts on liquid crystal layer simultaneously, make electric field intensity strengthen and be evenly distributed, can avoid that electrode pair grasps the weak more problem that causes ionization electrode liquid crystal molecule far away can not be torqued into assigned address of ability from its liquid crystal molecule far away more in the prior art.Because reversing fully of liquid crystal molecule makes that the visual angle of this liquid crystal indicator is wide, colourity is preferable and penetrance is higher.
[description of drawings]
Fig. 1 is a kind of liquid crystal indicator partial schematic diagram of duty of living in during making alive not in the prior art.
The partial schematic diagram of duty of living in when Fig. 2 is a liquid crystal indicator making alive shown in Figure 1.
The partial schematic diagram of Fig. 3 duty of living in during for the liquid crystal indicator first embodiment making alive of the present invention.
Fig. 4 is the public electrode and the pixel electrode synoptic diagram of liquid crystal indicator first embodiment of the present invention.
Fig. 5 is the public electrode and the pixel electrode synoptic diagram of liquid crystal indicator second embodiment of the present invention.
Fig. 6 is the public electrode and the pixel electrode synoptic diagram of liquid crystal indicator the 3rd embodiment of the present invention.
[embodiment]
First embodiment of liquid crystal indicator of the present invention as shown in Figure 3, this liquid crystal indicator 200 comprises first substrate 201, second substrate 202 and liquid crystal layer 213.
These two substrates 201,202 are oppositely arranged, and this liquid crystal layer 213 is between these two substrates 201,202.
This polaroid 222 is arranged on this second substrate, 212 outsides; This insulation course 236, this passivation layer 244 and this both alignment layers 232 are cascading in these second substrate, 212 inboards.
Transverse electric field switch unit 250 comprises a plurality of public electrodes 251 and a plurality of pixel electrode 252 in this second plane; These a plurality of public electrodes 251 are arranged between this insulation course 236 and this second substrate 212, and these a plurality of pixel electrodes 252 are arranged between this insulation course 236 and this passivation layer 244; This public electrode 251 is provided with these pixel electrode 252 spaces.
In addition, transverse electric field switch unit 250 corresponding settings in transverse electric field switch unit 240 and this second plane in this first plane, wherein, the public electrode 251 corresponding settings of transverse electric field switch unit 250 in the public electrode 241 of transverse electric field switch unit 240 and this second plane in this first plane; The pixel electrode 252 corresponding settings of transverse electric field switch unit 250 in the pixel electrode 242 of transverse electric field switch unit 240 and this second plane in this first plane.
Two both alignment layers 231 and 232 cooperate the initial orientation that is used for controlling liquid crystal molecule in the liquid crystal layer 213, and this both alignment layers 231 is identical with the polarizing axis direction of polaroid 222 with 232 orientation.Liquid crystal indicator 200 is realized colored the demonstration by colored filter 230.
Having a substrate in first substrate 211 and second substrate 212 at least is to adopt transparent material to make, as glass or silicon dioxide.Liquid crystal layer 213 is by forming to row (Nematic) type liquid crystal.Public electrode 241,251 and pixel electrode 242,252 adopts conductive materials to make, as tin indium oxide, indium zinc oxide or comprise at least a metallic conduction material among aluminium, gold, silver, chromium, nickel, titanium, copper, molybdenum, the niobium.
When Fig. 3 is making alive, the synoptic diagram of these liquid crystal indicator 200 duties of living in.Public electrode 241 cooperates formation to be basically parallel to the electric field 214 of first substrate 211 and second substrate 212 with pixel electrode 242, public electrode 251 with pixel electrode 252, because liquid crystal molecule has dielectric anisotropy and electricity is led anisotropy, so under electric field 214 effects, fully reverse, make its orientation consistent with the direction of this electric field 214.
See also Fig. 4, be the public electrode 251 and pixel electrode 252 synoptic diagram of this liquid crystal indicator 200, public electrode 251 is provided with pixel electrode 252 spaces, and this public electrode 251 and pixel electrode 252 are the vertical bar shape.
The public electrode 241 and the pixel electrode 242 of this liquid crystal indicator 200 also are the vertical bar shape.
Second embodiment of liquid crystal indicator of the present invention as shown in Figure 5, this embodiment and the first embodiment difference are: the public electrode 351 of this liquid crystal indicator and pixel electrode 352 are crooked shape structure, and this public electrode 351 is identical with the bending direction of this pixel electrode 352.
The public electrode 341 and the pixel electrode 342 of this liquid crystal indicator 300 also are crooked shape structure.
The 3rd embodiment of liquid crystal indicator of the present invention as shown in Figure 6, this embodiment and the first embodiment difference are: the public electrode 451 of this liquid crystal indicator and pixel electrode 452 are bending shape structure, and this public electrode 451 is identical with the overbending direction of this pixel electrode 452.
The public electrode 441 of this liquid crystal indicator 400 also is bending shape structure with pixel electrode 442.
Claims (10)
1. a liquid crystal indicator, it comprises: two substrates that are oppositely arranged and the liquid crystal layer between between two substrates, transverse electric field switch unit in each substrate tool one plane.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: the transverse electric field switch unit is corresponding in the plane of these two substrates is provided with.
3. liquid crystal indicator as claimed in claim 1, it is characterized in that: the transverse electric field switch unit comprises at least one public electrode and at least one pixel electrode in each plane, and this public electrode and this pixel electrode can form the electric field substantially parallel with substrate surface.
4. liquid crystal indicator as claimed in claim 3 is characterized in that: the public electrode of transverse electric field switch unit is corresponding up and down in these two planes is provided with, and pixel electrode is also corresponding up and down to be provided with.
5. liquid crystal indicator as claimed in claim 3 is characterized in that: this public electrode and this pixel electrode are conductive material.
6. liquid crystal indicator as claimed in claim 5 is characterized in that: this conductive material is a tin indium oxide.
7. liquid crystal indicator as claimed in claim 5 is characterized in that: this conductive material comprises among aluminium, gold, silver, chromium, nickel, titanium, copper, molybdenum, the niobium at least a.
8. liquid crystal indicator as claimed in claim 3 is characterized in that: this public electrode and this pixel electrode are one of at least the vertical bar shape.
9. liquid crystal indicator as claimed in claim 3 is characterized in that: this public electrode and this pixel electrode are one of at least crooked shape structure.
10. liquid crystal indicator as claimed in claim 3 is characterized in that: this public electrode and this pixel electrode are one of at least bending shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100412 CN1949064A (en) | 2005-10-13 | 2005-10-13 | Liquid crystal dispalying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100412 CN1949064A (en) | 2005-10-13 | 2005-10-13 | Liquid crystal dispalying device |
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| Publication Number | Publication Date |
|---|---|
| CN1949064A true CN1949064A (en) | 2007-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510100412 Pending CN1949064A (en) | 2005-10-13 | 2005-10-13 | Liquid crystal dispalying device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520545A (en) * | 2012-01-05 | 2012-06-27 | 信利半导体有限公司 | Wide-angle liquid crystal display |
| CN102819153A (en) * | 2012-08-10 | 2012-12-12 | 京东方科技集团股份有限公司 | Color film substrate, liquid crystal panel and liquid crystal display device |
| CN103364999A (en) * | 2012-03-28 | 2013-10-23 | 瀚宇彩晶股份有限公司 | IPS (in-plane switching) liquid crystal display device |
| CN103472636A (en) * | 2013-09-06 | 2013-12-25 | 京东方科技集团股份有限公司 | Liquid crystal display panel, driving method thereof and display device |
| CN104950533A (en) * | 2014-03-25 | 2015-09-30 | 深圳莱宝高科技股份有限公司 | Display panel |
| CN109445149A (en) * | 2019-01-25 | 2019-03-08 | 南京中电熊猫平板显示科技有限公司 | A kind of liquid crystal display device |
-
2005
- 2005-10-13 CN CN 200510100412 patent/CN1949064A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520545A (en) * | 2012-01-05 | 2012-06-27 | 信利半导体有限公司 | Wide-angle liquid crystal display |
| CN103364999A (en) * | 2012-03-28 | 2013-10-23 | 瀚宇彩晶股份有限公司 | IPS (in-plane switching) liquid crystal display device |
| CN102819153A (en) * | 2012-08-10 | 2012-12-12 | 京东方科技集团股份有限公司 | Color film substrate, liquid crystal panel and liquid crystal display device |
| CN102819153B (en) * | 2012-08-10 | 2015-03-11 | 京东方科技集团股份有限公司 | Color film substrate, liquid crystal panel and liquid crystal display device |
| CN103472636A (en) * | 2013-09-06 | 2013-12-25 | 京东方科技集团股份有限公司 | Liquid crystal display panel, driving method thereof and display device |
| US9430979B2 (en) | 2013-09-06 | 2016-08-30 | Boe Technology Group Co., Ltd. | Liquid crystal display panel, method for driving the same and display device |
| CN104950533A (en) * | 2014-03-25 | 2015-09-30 | 深圳莱宝高科技股份有限公司 | Display panel |
| CN109445149A (en) * | 2019-01-25 | 2019-03-08 | 南京中电熊猫平板显示科技有限公司 | A kind of liquid crystal display device |
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