CN100376943C - Multi-domain vertical orienting-mode liquid crystal display device - Google Patents
Multi-domain vertical orienting-mode liquid crystal display device Download PDFInfo
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- CN100376943C CN100376943C CNB2003101120337A CN200310112033A CN100376943C CN 100376943 C CN100376943 C CN 100376943C CN B2003101120337 A CNB2003101120337 A CN B2003101120337A CN 200310112033 A CN200310112033 A CN 200310112033A CN 100376943 C CN100376943 C CN 100376943C
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Abstract
The present invention relates to a multi-domain vertical orientation type liquid crystal display device which comprises a first substrate, a second substrate, a plurality of liquid crystal molecules, a plurality of grid electrode lines, a plurality of signal lines, common electrodes, a plurality of pixel electrodes, a plurality of notches and a plurality of convex blocks, wherein the first substrate is opposite to the second substrate, the liquid crystal molecules are positioned between the first substrate and the second substrate, the grid electrode lines and the signal lines are arranged on the second substrate, the common electrodes and the pixel electrodes are respectively arranged on the first substrate and the second substrate, the notches are arranged on the common electrodes, and the convex blocks are arranged on the pixel electrodes. The grid electrode lines and the signal lines form a plurality of pixel areas, the notches and the convex blocks are alternatively arranged in a mutually parallel mode, and the notches and the convex blocks corresponding to each pixel area are curved lines.
Description
[technical field]
The present invention relates to a kind of liquid crystal indicator, relate in particular to a kind of multidomain vertical orientation (Multi-domain Vertical Alignment, MVA) mode liquid crystal indicator.
[background technology]
Liquid crystal in the liquid crystal indicator itself is not had a characteristics of luminescence, realizes passing through or not passing through of light by adopting the electric field controls liquid crystal molecule to reverse, 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 electrically, therefore under the control of this electric field, liquid crystal molecular orientation will be perpendicular to substrate surface, but because the influence of interaction force between liquid crystal molecule and physical force such as gravity, make that the orientation of liquid crystal molecule can not be fully perpendicular to substrate surface, and the angle of inclination of each liquid crystal molecule is not quite similar, thereby, when the observer observes from different perspectives, will observe different display effects, this is the visual angle defective of liquid crystal indicator.
The liquid crystal indicator of multidomain vertical orientation mode disperses the orientation of the liquid crystal molecule of zones of different by a pixel cell is divided into a plurality of zones, enlarges the overall viewing angle of this pixel, thereby reaches the viewing angle characteristic that improves this liquid crystal indicator.
A kind of prior art multidomain vertical orientation mode liquid crystal indicator sees also No. the 01st, 121,750, disclosed Chinese patent application on January 23rd, 2002, as Fig. 1 and shown in Figure 2.This multidomain vertical orientation mode liquid crystal indicator 1 comprises first substrate 11 and second substrate 12 that are oppositely arranged, be separately positioned in this first substrate 11 and second substrate 12 and the interlaced projection that is arranged in parallel 111 and 121, a plurality of liquid crystal molecule 16.In addition, this multidomain vertical orientation mode liquid crystal indicator 1 also comprises pixel electrode, common electrode, alignment film, thin film transistor (TFT) (Thin Film Transistor, TFT), phase compensation film and polarizing appliance etc., still, this assembly is not all shown in Fig. 1 and Fig. 2.
In second substrate 12, form the pixel electrode that is connected to this thin film transistor (TFT), in first substrate 11, form common electrode, this projection 111 is arranged on this common electrode, this projection 121 is arranged on this pixel electrode, enclose a plurality of liquid crystal molecules 16 in this first substrate 11 and 12 of second substrates, this liquid crystal molecule 16 is that specific inductive capacity is negative and anisotropic liquid crystal material, because of the restraint of alignment film makes the original alignment of liquid crystal molecule 16 be approximately perpendicular to this first substrate 11 and second substrate 12.
Please consulting Fig. 1 again, is not during making alive, the synoptic diagram of this multidomain vertical orientation mode liquid crystal indicator 1 duty of living in.Under this state, thin film transistor (TFT) is the OFF state, liquid crystal molecule 16 orientations of projection 111 and 121 s' gap area are approximately perpendicular to this first substrate 11 and second substrate 12, near the orientation of the liquid crystal molecule 16 this projection 111 and the projection 121 is approximately perpendicular to the inclined-plane of this projection 111 and 121, because when light transmits along molecular axis (being the optical axis of the liquid crystal molecule) direction of liquid crystal molecule 16, can not produce birefringence, be that its polarization state can not change, vertical mutually because of being separately positioned on this first substrate 11 again with the polarizing axis of two polarizing appliances of second substrate 12, so this moment, this multidomain vertical orientation mode liquid crystal indicator 1 was in dark attitude.
Please consult Fig. 2 again, when being making alive, the synoptic diagram of this multidomain vertical orientation mode liquid crystal indicator 1 duty of living in.Under this state, thin film transistor (TFT) is the ON state, apply electric field on the liquid crystal molecule 16 perpendicular to first substrate 11 and second substrate 12, because liquid crystal molecule 16 is specific inductive capacity is negative and anisotropic liquid crystal material, under the electric field action, this liquid crystal molecule 16 will be added the restriction of projection 111 and 121 to the direction deflection vertical with direction of an electric field, make the orientation of all liquid crystal molecules 16 of 12 of this first substrate 11 and second substrates be approximately perpendicular to the inclined-plane of this projection 111 and 121.At this moment, there is certain angle in the molecular axis direction of incident light and liquid crystal molecule 16, thereby, this polarization of incident light attitude will change, therefore, part light will be arranged from being arranged on the polarizing appliance outgoing of this first substrate 11, promptly this multidomain vertical orientation mode liquid crystal indicator 1 is in bright attitude.
Seeing also Fig. 3, is thin film transistor (TFT) when being the ON state, the vergence direction synoptic diagram of the liquid crystal molecule 16 in the pixel region of this multidomain vertical orientation mode liquid crystal indicator 1.The part that this projection 111 and 121 is positioned at this pixel region all is " く " shape projection structure, pixel electrode 14 is arranged on the transparency electrode in this second substrate 12, and each pixel region is divided into the three lengthwise subpixel area (not indicating) of red, green, blue.In each subpixel area of this multidomain vertical orientation mode liquid crystal indicator 1, this first substrate 11 is divided into A, B, C, D four zones with 12 projections 111 of second substrate and 121 formed gap areas, and the orientation of the liquid crystal molecule in each zone roughly differs 90 degree mutually.Thereby when thin film transistor (TFT) was the ON state, the liquid crystal molecule 16 of this multidomain vertical orientation mode liquid crystal indicator 1 was oriented on a plurality of directions, so the visual angle is enlarged.
But, this A, B, C, D four zones form a juncture area (not indicating), this juncture area is the corner near zone of " く " shape projection structure, because this juncture area is this A, B, C, D four-range critical zone, so, when thin film transistor (TFT) is the ON state, can't be identical with the orientation that the liquid crystal molecule 16 of this juncture area occurs being positioned at liquid crystal molecule 16 orientations in this A, B, C, a certain zone of D four-range.Again because in this multidomain vertical orientation mode liquid crystal indicator 1, by being set, projection 111 and 121 controls liquid crystal molecule 16 tilted alignments, thereby, the tilting action of liquid crystal molecule 16 is propagated to gap area near projection 111 and 121, so, when thin film transistor (TFT) was the ON state, the liquid crystal molecule 16 that is positioned at this juncture area may not run-off the straight orientation.Because when thin film transistor (TFT) is the ON state, this multidomain vertical orientation mode liquid crystal indicator 1 is in bright attitude, so, be in this moment in the viewing area of bright attitude and can have dark areas, thereby quality is drawn a portrait in influence.
In addition, because in this A, B, C, D four zones, the orientation of all liquid crystal molecules 16 in the arbitrary region is roughly the same, promptly when thin film transistor (TFT) is the ON state, the liquid crystal molecule 16 of this multidomain vertical orientation mode liquid crystal indicator 1 only roughly is oriented on four orthogonal directions, thereby, can't make the observer when all angles are observed, obtain identical portrait effect, therefore, still there is certain visual angle defective in this multidomain vertical orientation mode liquid crystal indicator 1.
[summary of the invention]
For overcoming the defective of prior art multidomain vertical orientation mode liquid crystal indicator viewing angle characteristic and portrait inferior quality, the invention provides the multidomain vertical orientation mode liquid crystal indicator of preferable viewing angle characteristic of a kind of tool and portrait quality.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of multidomain vertical orientation mode liquid crystal indicator is provided, comprise first substrate and second substrate that are oppositely arranged, a plurality of liquid crystal molecules that are between this first substrate and second substrate, a plurality of gate line and signal wires that are arranged on second substrate, be separately positioned on common electrode and a plurality of pixel electrode of this first substrate and second substrate, a plurality of breach and a plurality of projections that are arranged on the pixel electrode that are arranged on this common electrode, these a plurality of gate lines and signal wire form a plurality of pixel regions, this breach and projection are parallel to each other and are staggered, and breach and projection corresponding to each pixel region all are shaped forms, and this breach and projection all have the continually varying bending angle.
Compared to prior art, in the multidomain vertical orientation mode liquid crystal indicator provided by the invention, this breach and projection are parallel to each other and are staggered, and breach and projection corresponding to each pixel region all are shaped forms, promptly this breach and projection all have the continually varying bending angle, and 90 degree bending angles are only arranged unlike " く " shape projection in the prior art multidomain vertical orientation mode liquid crystal indicator, thereby, when on common electrode and the pixel electrode during on-load voltage, under restriction perpendicular to the electric field of this first substrate and second substrate and this breach and projection, liquid crystal molecule will be obliquely oriented on a plurality of continuous directions, so, when no matter the observer is from arbitrarily angled observation, all can be observed essentially identical portrait effect, this illustrates the preferable viewing angle characteristic of multidomain vertical orientation mode liquid crystal indicator tool of the present invention.
Again because this breach and projection all have a plurality of continually varying bending angles, thereby, under restriction perpendicular to the electric field of this first substrate and second substrate and this breach and projection, even near the liquid crystal molecule that is positioned at this breach and the projection also can present different tilted alignments along with the variation of bending angle, promptly there is not the molecule that can't produce tilted alignment in the prior art multidomain vertical orientation mode liquid crystal indicator, also promptly when multidomain vertical orientation mode liquid crystal indicator of the present invention is in bright attitude, can there be the dark space, thereby compared to the multidomain vertical orientation mode liquid crystal indicator of prior art, the preferable portrait quality of multidomain vertical orientation mode liquid crystal indicator tool of the present invention.
In sum, the multidomain vertical orientation mode liquid crystal indicator of this technical scheme provided by the invention all has preferable viewing angle characteristic and preferable portrait quality.
[description of drawings]
Fig. 1 is the not synoptic diagram of duty of living in during making alive of a kind of prior art multidomain vertical orientation mode liquid crystal indicator.
The synoptic diagram of duty of living in when Fig. 2 is a multidomain vertical orientation mode liquid crystal indicator making alive shown in Figure 1.
The orientation synoptic diagram of the liquid crystal molecule when Fig. 3 is a multidomain vertical orientation mode liquid crystal indicator making alive shown in Figure 1 in one pixel region.
Fig. 4 is the distribution of electrodes synoptic diagram of multidomain vertical orientation mode liquid crystal indicator first embodiment one pixel region of the present invention.
Fig. 5 is the not synoptic diagram of duty of living in during making alive of multidomain vertical orientation mode liquid crystal indicator shown in Figure 4.
The synoptic diagram of duty of living in when Fig. 6 is a multidomain vertical orientation mode liquid crystal indicator making alive shown in Figure 4.
The synoptic diagram of duty of living in when Fig. 7 is the multidomain vertical orientation mode liquid crystal indicator second embodiment making alive of the present invention.
The synoptic diagram of duty of living in when Fig. 8 is multidomain vertical orientation mode liquid crystal indicator the 3rd an embodiment making alive of the present invention.
[embodiment]
First embodiment such as Fig. 4 of multidomain vertical orientation mode liquid crystal indicator of the present invention, Fig. 5 and shown in Figure 6, this multidomain vertical orientation mode liquid crystal indicator 2 comprises first substrate 21 and second substrate 22 that is oppositely arranged, a plurality of liquid crystal molecules 26 that are in this two substrate 21 and 22, many the gate lines 25 and signal wire 27 that are arranged on second substrate 22, be separately positioned on the common electrode 23 and a plurality of pixel electrodes 24 of this first substrate 21 and second substrate 22, be separately positioned on breach 211 and projection 221 on this common electrode 23 and the pixel electrode 24, wherein, these a plurality of gate lines 25 form a plurality of rectangular pixels zone with signal wire 27, this pixel region can extend to first substrate 21 along the direction perpendicular to this second substrate 22, this breach 211 is parallel to each other with projection 221 and is staggered, and the breach in each pixel region 211 all is shaped forms with projection 221, and this curve can satisfy as minor function:
X＝A?sin(πY/L)
Wherein, X, Y are respectively the variable of horizontal direction and vertical direction, and A is the level interval of breach 211 and projection 221, and L is the length of this pixel region, and 0≤Y≤L.
This liquid crystal molecule 26 is that specific inductive capacity is negative and anisotropic liquid crystal material, this common electrode 23 all adopts transparent conductive material to make with pixel electrode 24, as tin indium oxide (Indium Tin Oxide, ITO), zinc-tin oxide (Indium Zinc Oxide, IZO) etc.In addition, this multidomain vertical orientation mode liquid crystal indicator 2 also comprises alignment film, phase compensation film, polarizing appliance etc., but all not shown in Fig. 4, Fig. 5 and Fig. 6.
In this second substrate 22, many the gate line that is arranged in parallel 25 is vertical mutually with many signal wires that are arranged in parallel 27, be provided with dielectric film (figure does not show) between this gate line 25 and the signal wire 27, each overlapping place that this gate line 25 and signal wire are 27 is provided with a thin film transistor (TFT) 20.This thin film transistor (TFT) 20 has one source pole (figure does not show) to be connected to signal wire 27; there is a gate (figure does not show) to be connected to gate line 25; this signal wire 27 is provided with insulating protective film (figure does not show) with thin film transistor (TFT) 20, is provided with pixel electrode 24 in the pixel region that per two adjacent gate lines 25 and signal wire 27 form.
Each pixel electrode 24 is grown crosswise and is about 100 μ m, and lengthwise is about 300 μ m, and each pixel electrode 24 is provided with a shaped form projection 221, is about 7 μ m corresponding to the width of pixel electrode 24 projections.This common electrode 23 is arranged on this first substrate, 21 contiguous liquid crystal molecule 26 1 sides, this breach 211 is arranged on this common electrode 23 contiguous liquid crystal molecule 26 1 sides, and this breach 211 and projection 221 interlaced being arranged in parallel, promptly corresponding to a pixel region, this breach 211 is a circular arc.This breach 211 wide about 10 μ m, high about 1.5 μ m.In addition, the xsect of this projection 221 is triangles.
Please consulting Fig. 5 again, is not during making alive, the synoptic diagram of these multidomain vertical orientation mode liquid crystal indicator 2 duties of living in.Under this state, thin film transistor (TFT) is the OFF state, because alignment film, the restriction of breach 211 and projection 221, thereby, the orientation of liquid crystal molecule 26 that is positioned at the gap area of 221 of breach 211 and projections is approximately perpendicular to this first substrate 21 and second substrate 22, the orientation that is positioned near the liquid crystal molecule 26 this breach 211 and the projection 221 is approximately perpendicular to the inclined-plane of this projection 221, because when light transmits along molecular axis (being the optical axis of the liquid crystal molecule) direction of liquid crystal molecule 26, can not produce birefringence, vertical mutually because of being separately positioned on this first substrate 21 again with the polarizing axis of two polarizing appliances of second substrate 22, so this moment, this multidomain vertical orientation mode liquid crystal indicator 2 was in dark attitude.
Please consult Fig. 6 again, when being making alive, the synoptic diagram of these multidomain vertical orientation mode liquid crystal indicator 2 duties of living in.Under this state, thin film transistor (TFT) is the ON state, apply electric field on the liquid crystal molecule 26 perpendicular to first substrate 21 and second substrate 22, because liquid crystal molecule 26 is specific inductive capacity is negative and anisotropic liquid crystal material, under the electric field action, this liquid crystal molecule 26 will be to the direction deflection vertical with direction of an electric field, add the restriction of breach 211 and projection 221, makes the orientation of all liquid crystal molecules 26 of 22 of this first substrate 21 and second substrates be approximately perpendicular to the inclined-plane of this projection 221.At this moment, there is certain angle in the molecular axis direction of incident light and liquid crystal molecule 26, thereby, this polarization of incident light attitude will change, so, part light will be arranged from being arranged on the polarizing appliance outgoing of this first substrate, promptly this multidomain vertical orientation mode liquid crystal indicator 2 is in bright attitude.
Because corresponding to each pixel region, this breach 211 all is a circular arc with projection 221, be that breach 211 all has continuous bending angle with projection 221, thereby, when on common electrode 23 and the pixel electrode 24 during on-load voltage, under restriction perpendicular to the electric field of this first substrate 21 and second substrate 22 and this breach 211 and projection 221, liquid crystal molecule 26 will be obliquely oriented on a plurality of continually varying directions, so, when no matter the observer is from arbitrarily angled observation, all can be observed essentially identical portrait effect, the preferable viewing angle characteristic of multidomain vertical orientation mode liquid crystal indicator 2 tools promptly of the present invention.
Again because this breach 211 all has a plurality of continually varying bending angles with projection 221, thereby, under restriction perpendicular to the electric field of this first substrate 21 and second substrate 22 and this breach 211 and projection 221, even near the liquid crystal molecule 26 that is positioned at this breach 211 and the projection 221 also can present different tilted alignments along with the variation of bending angle, promptly there is not the molecule that can't produce tilted alignment in the prior art multidomain vertical orientation mode liquid crystal indicator, also promptly when this multidomain vertical orientation mode liquid crystal indicator 2 is in bright attitude, can there be the dark space, thereby compared to the multidomain vertical orientation mode liquid crystal indicator of prior art, the preferable portrait quality of multidomain vertical orientation mode liquid crystal indicator 2 tools of the present invention.
Second embodiment of multidomain vertical orientation mode liquid crystal indicator of the present invention as shown in Figure 7, this multidomain vertical orientation mode liquid crystal indicator 3 is basic identical with the structure of multidomain vertical orientation mode liquid crystal indicator 2, difference is: in this multidomain vertical orientation mode liquid crystal indicator 3, the breach 311 and the projection 321 of each pixel region all are the serpentine curves.
In addition, with the class of a curve of first embodiment seemingly, this serpentine curve can satisfy as minor function:
X＝A?sin(πY/2L)
Wherein, X, Y are respectively the variable of horizontal direction and vertical direction, and A is the level interval of breach 311 and projection 321, and L is the length of this pixel region, and 0≤Y≤L.
When Fig. 7 is making alive, the synoptic diagram of these multidomain vertical orientation mode liquid crystal indicator 3 duties of living in.Because in this multidomain vertical orientation mode liquid crystal indicator 3, the breach 311 and the projection 321 of each pixel region all are serpentines, be that breach 311 all has continuous bending angle with projection 321, and compare with projection 221 with the breach 211 of multidomain vertical orientation mode liquid crystal indicator 2, has more bending angle, thereby, liquid crystal molecule 36 tiltables are oriented in more multi-direction, so, compare the broader viewing angle characteristic of these multidomain vertical orientation mode liquid crystal indicator 3 tools with multidomain vertical orientation mode liquid crystal indicator 2.
The 3rd embodiment of multidomain vertical orientation mode liquid crystal indicator of the present invention as shown in Figure 8, this multidomain vertical orientation mode liquid crystal indicator 4 is basic identical with the structure of multidomain vertical orientation mode liquid crystal indicator 2, difference is: in this multidomain vertical orientation mode liquid crystal indicator 4, the breach 311 and the projection 321 of each pixel region all is the waveform that a plurality of serpentines are formed.
In addition, with the class of a curve of first embodiment seemingly, this serpentine curve can satisfy as minor function:
X＝A?sin(πY/(nL))
Wherein, X, Y are respectively the variable of horizontal direction and vertical direction, and A is the level interval of breach 411 and projection 421, and L is the length of this pixel region, and n is greater than or equal to 1 integer, and 0≤Y≤L.
When Fig. 8 is making alive, the synoptic diagram of these multidomain vertical orientation mode liquid crystal indicator 4 duties of living in.Because in this multidomain vertical orientation mode liquid crystal indicator 4, the breach 411 and the projection 421 of each pixel region all is the waveform that a plurality of serpentines are formed, be that breach 411 all has the continually varying bending angle with projection 421, and compare with projection 221 with the breach 211 of multidomain vertical orientation mode liquid crystal indicator 2, has more bending angle, thereby, liquid crystal molecule 46 tiltables are oriented in more multi-direction, so, compare the broader viewing angle characteristic of these multidomain vertical orientation mode liquid crystal indicator 4 tools with multidomain vertical orientation mode liquid crystal indicator 2.
But it is described that multidomain vertical orientation mode liquid crystal indicator of the present invention is not limited to this embodiment, and for example: the cross section of this projection can be trapezoidal; The cross section of this breach can be rectangle, trapezoidal or triangle, and this substrate can adopt glass or silicon dioxide to make; This dielectric film can adopt insulating material such as monox or silicon nitride to make; This gate line and signal linear system adopt the metallic conduction material to make; The alignment film of this multidomain vertical orientation mode liquid crystal indicator both can be arranged in first substrate and second substrate simultaneously, also can only be arranged in first substrate or second substrate; This curve can be a circular arc etc.
Claims (5)
1. multidomain vertical orientation mode liquid crystal indicator, comprise first substrate and second substrate that are oppositely arranged, a plurality of liquid crystal molecules that are between this first substrate and second substrate, many gate line and the signal wires that are arranged on second substrate, be separately positioned on common electrode and a plurality of pixel electrode of this first substrate and second substrate, a plurality of breach and a plurality of projections that are arranged on the pixel electrode that are arranged on this common electrode, these many gate lines and signal wire form a plurality of pixel regions, this breach and projection are parallel to each other and are staggered, it is characterized in that: breach and projection corresponding to each pixel region all are shaped forms, and this breach and projection all have the continually varying bending angle.
2. multidomain vertical orientation mode liquid crystal indicator as claimed in claim 1 is characterized in that: should all be circular arc corresponding to the breach and the projection of each pixel region.
3. multidomain vertical orientation mode liquid crystal indicator as claimed in claim 1 is characterized in that: should all be serpentine corresponding to the breach and the projection of each pixel region.
4. multidomain vertical orientation mode liquid crystal indicator as claimed in claim 1 is characterized in that: should all be the waveform that a plurality of serpentines are formed corresponding to the breach and the projection of each pixel region.
5. multidomain vertical orientation mode liquid crystal indicator as claimed in claim 1 is characterized in that: should all be the curve that satisfies as minor function corresponding to the breach of each pixel region and the shape of projection:
X＝Asin(πY/(nL))
Wherein, X, Y are respectively the variable of horizontal direction and vertical direction, and A is the level interval of breach and projection, and L is the length of this pixel region, and n is the integer greater than 0, and 0≤Y≤L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101120337A CN100376943C (en) | 2003-11-01 | 2003-11-01 | Multi-domain vertical orienting-mode liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101120337A CN100376943C (en) | 2003-11-01 | 2003-11-01 | Multi-domain vertical orienting-mode liquid crystal display device |
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| Publication Number | Publication Date |
|---|---|
| CN1612010A CN1612010A (en) | 2005-05-04 |
| CN100376943C true CN100376943C (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101120337A Expired - Fee Related CN100376943C (en) | 2003-11-01 | 2003-11-01 | Multi-domain vertical orienting-mode liquid crystal display device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000111953A (en) * | 1998-10-08 | 2000-04-21 | Matsushita Electric Ind Co Ltd | Active matrix type liquid crystal display device |
| US20020036743A1 (en) * | 2000-08-07 | 2002-03-28 | Won-Gyun Youn | Liquid crystal display device with wide viewing angle |
| US20020075437A1 (en) * | 2000-11-27 | 2002-06-20 | Masakazu Fukumoto | Multi-domain vertically aligned liquid crystal display device |
| US20030043327A1 (en) * | 2001-08-29 | 2003-03-06 | Tetsuya Aoyama | Liquid crystal display apparatus using IPS display mode with high numerical aperture |
-
2003
- 2003-11-01 CN CNB2003101120337A patent/CN100376943C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000111953A (en) * | 1998-10-08 | 2000-04-21 | Matsushita Electric Ind Co Ltd | Active matrix type liquid crystal display device |
| US20020036743A1 (en) * | 2000-08-07 | 2002-03-28 | Won-Gyun Youn | Liquid crystal display device with wide viewing angle |
| US20020075437A1 (en) * | 2000-11-27 | 2002-06-20 | Masakazu Fukumoto | Multi-domain vertically aligned liquid crystal display device |
| US20030043327A1 (en) * | 2001-08-29 | 2003-03-06 | Tetsuya Aoyama | Liquid crystal display apparatus using IPS display mode with high numerical aperture |
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| CN1612010A (en) | 2005-05-04 |
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