CN100480795C - Liquid crystal display panel and array substrate for liquid crystal display - Google Patents
Liquid crystal display panel and array substrate for liquid crystal display Download PDFInfo
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- CN100480795C CN100480795C CNB200610153813XA CN200610153813A CN100480795C CN 100480795 C CN100480795 C CN 100480795C CN B200610153813X A CNB200610153813X A CN B200610153813XA CN 200610153813 A CN200610153813 A CN 200610153813A CN 100480795 C CN100480795 C CN 100480795C
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Abstract
The LCD panel and display array substrate comprise: a first substrate with a first-time and second-time pixel areas, a lower electrode with part in the first-time area and other in the second-time area, a dielectric layer on the lower electrode and first substrate, an upper electrode on the dielectric layer, a protective layer on the upper electrode and dielectric layer that includes an opening to expose the top surface of the upper electrode and has different thickness in two pixel areas, and two sub-pixel electrode on the protective layer and upper electrode respectively. This invention can enlarge view angle.
Description
Technical field
The present invention relates to LCD Technology, particularly a kind of panel of LCD that can increase the visual angle of LCD, and the array base palte of LCD.
Background technology
Recently, photoelectric technology is constantly weeded out the old and bring forth the new, and adds the arrival of digital times, has promoted the flourish of LCD market.LCD because have that high image quality, volume are little, in light weight, numerous advantages such as low driving voltage and low consumpting power.Therefore be widely used in PDA(Personal Digital Assistant), mobile phone, shoot with video-corder projector, consumer communication or electronic products such as mobile computer, desktop display, automobile-used display and projection TV, and replace conventional cathode ray tube gradually, and become the main flow of display.
But LCD has serious visual angle problem.Mainly be because general LCD, when voltage puts on the pixel, the voltage that liquid crystal molecule bore in the same pixel is identical, (orientation direction) is also identical in orientation, make when different angles are watched LCD, have the problem that colour cast and contrast descend, it is inhomogeneous to cause GTG to show.Thereby the visual angle that LCD can be viewed and admired is limited.
Summary of the invention
Therefore the objective of the invention is to, a kind of array base palte and panel construction of LCD is provided.This kind array base palte and panel construction can improve different angles when watching LCD, the problem that the colour cast of generation and contrast descend, and it is more even to make that GTG shows.
For achieving the above object, the invention provides: a kind of array base palte of LCD, wherein, this array base palte comprises: one first substrate comprises pixel region and a pixel region for the second time for the first time; One bottom electrode, a part of bottom electrode are arranged in pixel region for the first time, and another part bottom electrode is arranged in pixel region for the second time; One dielectric layer is positioned on the bottom electrode and first substrate; One top electrode is positioned on the dielectric layer directly over the bottom electrode; One protective seam is positioned on top electrode and the dielectric layer, and protective seam has an opening, and to expose the upper surface of top electrode, the thickness that wherein is positioned at the protective seam of the pixel region first time is different from the thickness of the protective seam that is positioned at the pixel region second time; And two time pixel electrodes lay respectively at pixel region for the first time and for the second time on the protective seam and top electrode of pixel region, and are electrical connected with top electrode.
The present invention also provides: a kind of array base palte of LCD wherein, comprises: one first substrate comprises pixel region and a pixel region for the second time for the first time; One bottom electrode, a part of bottom electrode are arranged in pixel region for the first time, and another part bottom electrode is arranged in pixel region for the second time; One dielectric layer is positioned on the bottom electrode and first substrate, and wherein, the medium thickness that is positioned on the pixel region first time is different from the medium thickness that is positioned on the pixel region second time; One top electrode is positioned on the dielectric layer directly over the bottom electrode; One protective seam is positioned on top electrode and the dielectric layer, and protective seam has an opening, to expose the upper surface of top electrode; And two 2 time pixel electrodes lay respectively at pixel region for the first time and for the second time on the protective seam and top electrode of pixel region, and are electrical connected with top electrode.The framework of this array base palte is identical with above-mentioned array base palte framework.Except in the framework of this array base palte, for the first time the thickness of the protective seam of pixel region is identical with the thickness of the protective seam of pixel region for the second time, and the medium thickness on the pixel region is different from the medium thickness that is positioned on the pixel region second time for the first time.
The present invention also provides: a kind of panel.A kind of panel of LCD of this panel comprises a plurality of pixels, it is characterized in that, each pixel comprises: array basal plate comprises pixel region and a pixel region for the second time for the first time; One liquid crystal layer is positioned on the array base palte; One common electrode is positioned on the liquid crystal layer of the pixel region top first time; One organic layer (organic layer) is positioned on the common electrode, and the thickness of the organic layer above first time pixel region is different from the thickness of the organic layer above second time pixel region; And one second substrate, be positioned on the organic layer.The framework of the array base palte of this panel is with above-mentioned two kinds of array base palte frameworks, except protective seam and dielectric layer the first time pixel region all identical with the thickness of pixel region for the second time.Above-mentioned liquid crystal layer, common electrode, organic layer and second substrate are positioned on the array base palte in regular turn.Wherein organic layer the first time pixel region thickness be different from thickness at the pixel region second time.
From the above, the present invention utilizes the effect that above-mentioned simple framework can reach increases the visual angle.Make display when different angles are watched, aberration and contrast descend and are improved, and the GTG of display shows also more even simultaneously.
Description of drawings
Fig. 1 is the sectional view of the single pixel of a preferred embodiment of the present invention.
Fig. 2 is the sectional view of the single pixel of another preferred embodiment of the present invention.
Fig. 3 is the sectional view of the single pixel of the another preferred embodiment of the present invention.
The primary clustering symbol description:
145: the first top electrodes of 143: the second bottom electrodes of 100: the first substrates
Opening 150 in 148: the first: 154: the first reservior capacitors of the pixel region first time
160: 168: the second pixel capacitors 172 of pixel region for the second time: pixel electrode for the first time
174: liquid crystal layer 179: 141: the first bottom electrodes of colored filter
144: 149: the second openings of 147: the second top electrodes of dielectric layer
152: 164: the second reservior capacitors of 158: the first pixel capacitors of common electrode
171: protective seam 173: pixel electrode 178 for the second time: organic layer
180: the second substrates
Embodiment
In preferred embodiment of the present invention, each pixel down is divided into pixel again two times, utilize the adjustment of some structures, make two pixels that different total capacitance values be arranged respectively.When voltage puts on pixel, because the difference of two pixel total capacitance values has influence on the voltage distribution on the pixel electrode.Because two pixel voltage differences that time pixel is born, so the Liquid Crystal Molecules Alignment direction difference in two pixels, the problem that makes aberration that different angles are watched and contrast descend is improved, and the GTG demonstration is more even.Thereby the visual angle that LCD can be viewed and admired increases.
Below divide three embodiment narrations how by the adjustment of structure, make two pixels that different total capacitance values be arranged:
Embodiment one:
Fig. 1 is the sectional view of the array base palte of a preferred embodiment of the present invention.In Fig. 1, each pixel region down is divided into pixel region two times, is pixel region 150 first time at the left side of sectional view one side of something, and right one side of something is a pixel region 160 second time.Pixel region 150 is with the area of pixel region 160 can be unequal for the second time for the first time.Can adjust pixel region 150 and the configuration area of pixel region 160 on pixel region for the first time for the second time according to the view effect that will reach.Bottom electrode is positioned on first substrate 100, across crossing pixel region 150 and pixel region 160 for the first time for the second time.Distinguish for convenient, the bottom electrode on the pixel region 150 is called first bottom electrode 141 for the first time, and the bottom electrode on the pixel region 160 then is called second bottom electrode 143 for the second time.Dielectric layer 144 is positioned on first bottom electrode 141, second bottom electrode 143 and first substrate 100.First top electrode 145 and second top electrode 147 lay respectively on the dielectric layer 144 directly over first bottom electrode 141 and second bottom electrode 143.The first time 145 of pixel region 150, the first bottom electrodes 141, dielectric layer 144 and first top electrodes constitute first reservior capacitor 154.The second time 147 of pixel region 160, the second bottom electrodes 143, dielectric layer 144 and second top electrodes constitute second reservior capacitor 164.
For the first time pixel electrode 172 and for the second time pixel electrode 173 lay respectively on the upper surface of protective seam 171, first top electrode 145 and second top electrode 147, see through first opening 148 and directly contact with second top electrode 147 with first top electrode 145 respectively with second opening 149.Is liquid crystal layer 174, common electrode 152, organic layer 178, colored filter 179 and second substrate 180 in the first time pixel electrode 172 and the second time in regular turn on the pixel electrode 173.Wherein colored filter 179 comprises the structure of black matrix".The sequence of positions of organic layer 178 and colored filter 179 can be exchanged according to need.
Above-mentioned first time pixel electrode 172, liquid crystal layer 174 and common electrode 152, the three constitutes first pixel capacitor 158.For the second time pixel electrode 173, liquid crystal layer 174 and common electrode 152, the three constitutes second pixel capacitor 168.
In the above-described embodiments, the material of dielectric layer 144 is preferably nitrogen silicon compound or silicon oxide compound.The material of protective seam 171 is preferably nitrogen silicon compound or silicon oxide compound.In addition, protective seam 171 also can be organic dielectric layer.Among the figure, V
Gate, V
SourceAnd V
DrainBe respectively the voltage of transistorized grid, source electrode and drain electrode in the array base palte.V
ComBe the voltage that is applied to common electrode 152, V
CsBe the voltage that is applied to first bottom electrode 141 and second bottom electrode 143, V
ComAnd V
CsCan equate also can not wait.
In said structure, the total capacitance value of pixel is the summation of the capacitance of first reservior capacitor 154, first pixel capacitor 158 and other coupling capacitance for the first time, and the total capacitance value of pixel is the summation of the capacitance of second reservior capacitor 164 and second pixel capacitor 168 and other coupling capacitance for the second time.Because first reservior capacitor 154 and second reservior capacitor 164 are same reservior capacitor, capacitance equates.So, in this embodiment, mainly be to make the capacitance of first pixel capacitor 158 be not equal to the capacitance of second pixel capacitor 168, so that the total capacitance value of two pixels is unequal.Utilize protective seam 171 different at first pixel region 150 and second pixel region, 160 thickness, make liquid crystal layer 174 thickness of the win pixel capacitor 158 and second pixel capacitor 168 different.So reach first pixel capacitor 158 and the different purpose of second pixel capacitor, 168 capacitances, also final feasible pixel total capacitance value for the first time is different from pixel total capacitance value for the second time.
Embodiment two:
The main difference of embodiment two and embodiment one is the structure of section.Fig. 2 is the sectional view of the array base palte of another preferred embodiment of the present invention.In Fig. 2, the structure division identical with embodiment one can seldom be given unnecessary details at this referring to embodiment one.In the embodiment in figure 1, be the thickness of adjusting protective seam in time pixel, adjust the thickness of liquid crystal layer in time pixel capacitor, make that the pixel capacitor of homogeneous pixel does not have different capacitances.At this embodiment, then be the thickness of protective seam in the fixing time pixel, change by the thickness of adjusting organic layer in time pixel, adjust the thickness of liquid crystal layer in time pixel capacitor, make that the pixel capacitor of homogeneous pixel does not have different capacitances.
In Fig. 2, protective seam 171 is identical at first pixel region 150 with second pixel region, 160 thickness.Feature structure is, is positioned at the thickness of the organic layer 178 of 180 of the common electrode 152 and second substrates, that is, organic layer 178 the first time pixel region 150 and pixel region 160 for the second time different thickness arranged respectively.So cause liquid crystal layer 174 thickness different of the liquid crystal layer 174 of first pixel capacitor 158 and second pixel capacitor 168, make pixel capacitor 158 capacitances of winning be different from second pixel capacitor 168, also final feasible pixel total capacitance value for the first time is different from pixel total capacitance value for the second time.
In addition, for reaching preferable enhancement view effect, the sequence of positions of organic layer 178 and colored filter 179 can be exchanged according to need among Fig. 2, is not limited to the sequence of positions of Fig. 2.
Embodiment three:
Fig. 3 is the sectional view of the array base palte of another preferred embodiment of the present invention.In Fig. 3, the structure division identical with embodiment one can be referring to embodiment one, this no longer repeated description give unnecessary details more.Because the total capacitance value of inferior pixel is the summation of the capacitance of reservior capacitor, pixel capacitor and other coupling capacitance, so in preceding two embodiment, all be by changing the capacitance of pixel capacitor, making two pixels that different total capacitance values be arranged to each other.In embodiment three, then be to change by changing reservior capacitor in time pixel, make the total capacitance value of two pixels unequal.
Therefore, in this embodiment, protective seam 171 is identical at first pixel region 150 with second pixel region, 160 thickness.Feature structure is, dielectric layer 144 the first time pixel region 150 with pixel region 160 for the second time different thickness is arranged.Because dielectric layer 144 the first time pixel region 150 and pixel region 160 thickness for the second time different, except the capacitance that makes first reservior capacitor 154 and second reservior capacitor 164 unequal, also make simultaneously liquid crystal layer 174 the first time pixel region 150 and for the second time the thickness of pixel region 160 produce difference, thereby the capacitance of first pixel capacitor 158 is different from the capacitance of second pixel capacitor 168.Finally, the total capacitance value of pixel is different from the total capacitance value of pixel for the second time for the first time.
The 3rd embodiment compares with first embodiment, and the effect that strengthens the visual angle is better.In addition, in the 3rd embodiment, also can only change the thickness of dielectric layer 144 in first reservior capacitor 154 and second reservior capacitor 164, make that the total capacitance value of pixel is different from the total capacitance value of pixel for the second time for the first time.
By the invention described above preferred embodiment as can be known, use the present invention and have following advantage.
(1) simple structure can reach the effect that increases the visual angle.
(2) improve different angles and watch the problem that has aberration and contrast decline.
Above embodiment only is used to implementation process of the present invention is described, is not to be used to limit protection scope of the present invention.
Claims (11)
1. the array base palte of a LCD is characterized in that, comprises:
One first substrate comprises pixel region and a pixel region for the second time for the first time;
One bottom electrode, a part of bottom electrode are arranged in pixel region for the first time, and another part bottom electrode is arranged in pixel region for the second time;
One dielectric layer is positioned on the bottom electrode and first substrate;
One top electrode is positioned on the dielectric layer directly over the bottom electrode;
One protective seam is positioned on top electrode and the dielectric layer, and protective seam has an opening, and to expose the upper surface of top electrode, the thickness that wherein is positioned at the protective seam of the pixel region first time is different from the thickness of the protective seam that is positioned at the pixel region second time; And
Two time pixel electrodes lay respectively at pixel region for the first time and for the second time on the protective seam and top electrode of pixel region, and are electrical connected with top electrode.
2. array base palte as claimed in claim 1 is characterized in that, the area of pixel region equals the area of pixel region for the second time for the first time.
3. array base palte as claimed in claim 1 is characterized in that, the area of pixel region is not equal to the area of pixel region for the second time for the first time.
4. array base palte as claimed in claim 1 is characterized in that, the material of dielectric layer is nitrogen silicon compound or silicon oxide compound.
5. array base palte as claimed in claim 1 is characterized in that, the material of protective seam is nitrogen silicon compound or silicon oxide compound.
6. array base palte as claimed in claim 1 is characterized in that, protective seam is organic dielectric layer.
7. a panel of LCD comprises a plurality of pixels, it is characterized in that, each pixel comprises:
Array basal plate comprises pixel region and a pixel region for the second time for the first time;
One liquid crystal layer is positioned on the array base palte;
One common electrode is positioned at pixel region and for the first time for the second time on the liquid crystal layer of pixel region top;
One organic layer is positioned on the common electrode, and the thickness of the organic layer above first time pixel region is different from the thickness of the organic layer above second time pixel region;
One second substrate is positioned on the organic layer; And
Two time pixel electrodes lay respectively at pixel region for the first time and for the second time on the protective seam and top electrode of pixel region, and are electrical connected with top electrode.
8. panel as claimed in claim 7 is characterized in that, also comprises a colored filter, is positioned between common electrode and organic layer.
9. panel as claimed in claim 7 is characterized in that, also comprises a colored filter, is positioned between the organic layer and second substrate.
10. panel as claimed in claim 7 is characterized in that, the area of pixel region equals the area of pixel region for the second time for the first time.
11. panel as claimed in claim 7 is characterized in that, the area of pixel region is not equal to the area of pixel region for the second time for the first time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB200610153813XA CN100480795C (en) | 2006-09-12 | 2006-09-12 | Liquid crystal display panel and array substrate for liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610153813XA CN100480795C (en) | 2006-09-12 | 2006-09-12 | Liquid crystal display panel and array substrate for liquid crystal display |
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| CN100480795C true CN100480795C (en) | 2009-04-22 |
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| CN103558692A (en) * | 2013-10-12 | 2014-02-05 | 深圳市华星光电技术有限公司 | Polarizing type three-dimensional display panel and pixel units of polarizing type three-dimensional display panel |
| CN106773370B (en) * | 2016-12-27 | 2020-03-27 | 深圳市华星光电技术有限公司 | Liquid crystal display panel |
| CN109507817A (en) * | 2018-12-25 | 2019-03-22 | 惠科股份有限公司 | Display device, array substrate and its process |
| CN110018596A (en) * | 2019-04-08 | 2019-07-16 | 成都中电熊猫显示科技有限公司 | A kind of array substrate, display panel and electronic device |
| CN109856879A (en) * | 2019-04-09 | 2019-06-07 | 惠科股份有限公司 | Dot structure and preparation method thereof and display panel |
| CN113471216A (en) * | 2021-06-16 | 2021-10-01 | Tcl华星光电技术有限公司 | Display panel and preparation method thereof |
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