CN102289108A - Pixel structure and liquid crystal display panel with same - Google Patents
Pixel structure and liquid crystal display panel with same Download PDFInfo
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- CN102289108A CN102289108A CN201110233020XA CN201110233020A CN102289108A CN 102289108 A CN102289108 A CN 102289108A CN 201110233020X A CN201110233020X A CN 201110233020XA CN 201110233020 A CN201110233020 A CN 201110233020A CN 102289108 A CN102289108 A CN 102289108A
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Abstract
The invention provides a pixel structure and a liquid crystal display panel with the same. The pixel structure provided by the invention comprises a first base plate, a second base plate, a liquid crystal layer and an alignment bulge, wherein the first base plate is provided with an active component and a pixel electrode connected with the active component; the first base plate is used for light rays to pass through; the pixel electrode comprises an alignment slit and at least one pit; the alignment slit surrounds the pits; the second base plate is opposite to the first base plate and is provided with a share electrode; the liquid crystal layer is arranged between the first base plate and the second base plate; the light rays pass through the pixel electrode of the first base plate to the liquid crystal layer; the alignment bulge is arranged on the second base plate and positioned between the share electrode and the liquid crystal layer; and the alignment bulge corresponds to the at least one pit. The liquid crystal display panel with the pixel structure provided by the invention has the advantage of good display quality.
Description
The application is that application number is 200610146851.2, the applying date is on November 27th, 2006, denomination of invention is divided an application for the patented claim of " dot structure and the display panels with this dot structure ".
Technical field
The invention relates to a kind of two-d display panel and dot structure thereof, and particularly relevant for a kind of dot structure and display panels (PIXEL STRUCTURE AND LIQUID CRYSTAL DISPLAYING PANEL HAVING THE SAME) with this dot structure.
Background technology
In recent years, the research of LCD constantly strides forward towards the wide viewing angle technology, similarly be that (multi-domain vertically alignment, MVA) LCD is present common on the market a kind of wide-angle liquid crystal display product to multidomain vertical alignment type.
Fig. 1 is the diagrammatic cross-section of the dot structure of existing a kind of multiple domain vertical orientation type liquid crystal display.Please refer to Fig. 1, dot structure 100 comprises first substrate 110, second substrate 120, alignment structure 130 and liquid crystal layer 140.The relation of each inter-module is described below.First substrate 110 has driving component (not shown) and the pixel electrode 114 that is connected driving component.Second substrate 120 is relative with first substrate 110, and has shared electrode 122.Then, alignment structure 130 is positioned on first substrate 110 and second substrate 120, and alignment structure 130 is constituted by being positioned at orientation projection 132 on second substrate 120 and the orientation slit 134 that is positioned on the pixel electrode 114.In addition, liquid crystal layer 140 is between first substrate 110 and second substrate 120.
Liquid crystal molecule in the dot structure 100 has the characteristic of vertical orientation, and alignment structure 130 can make the liquid crystal molecule in the zones of different topple over different angles so that dot structure 100 has the effect of wide viewing angle.Yet, use some shortcomings that the vertical direction distributing type liquid crystal molecule but can produce the following stated.Fig. 2 is the light penetration rate (transmittance) of existing a kind of display of using the vertical direction distributing type liquid crystal and the characteristic curve diagram (V-T curve) of driving voltage (driving voltage).Among Fig. 2, transverse axis is a driving voltage, and the longitudinal axis is the light penetration rate.Curve 210 is when spending at visual angle 0, and the display driving voltage is to the characteristic curve of light penetration rate, and curve 220 is when spending at visual angle 50, and the display driving voltage is to the characteristic curve of light penetration rate.As shown in Figure 2, watch down in different visual angles, the light penetration rate of the display of application vertical direction distributing type liquid crystal molecule is also inconsistent.Particularly, under the low driving voltage, this type of LCD is in the light penetration rate of the light penetration rate of locating with great visual angle greater than the small angle place, and under the high driving voltage, then this situation is opposite.Therefore, though the LCD of this type has the effect of wide viewing angle, under different visual angles, have the shortcoming of colour cast and color saturation deficiency (color washout).
Summary of the invention
The purpose of this invention is to provide a kind of dot structure, to solve light penetration rate inconsistent problem under different visual angles.
Another object of the present invention provides a kind of display panels, in order to improve the existing colour cast that is caused because of the visual angle difference and the problem of color saturation deficiency.
For reaching above-mentioned or other purpose, the present invention proposes a kind of dot structure.This dot structure comprises: one first substrate, it has a driving component and a pixel electrode that is connected described driving component, in order to penetrating a light, and described pixel electrode comprises an orientation slit and at least one depression, and described orientation slit is around described depression; One second substrate, it is relative with described first substrate, and has a shared electrode; One liquid crystal layer, it is between described first substrate and described second substrate, and the described pixel electrode of described first substrate of described light penetration is to described liquid crystal layer; And an orientation projection, it is positioned on described second substrate, and between described shared electrode and described liquid crystal layer, described orientation projection is corresponding to described at least one depression.
The present invention proposes a kind of display panels of using above-mentioned dot structure in addition, comprise an active assembly array base plate, it has a plurality of driving components of array arrangement and a plurality of pixel electrodes that connect described driving component respectively, in order to penetrate a light, and described each pixel electrode comprises an orientation slit and at least one depression, and described orientation slit is around described depression; One subtend substrate, it is relative with described active assembly array base plate, and described subtend substrate has a shared electrode; One liquid crystal layer, it is between described active assembly array base plate and described subtend substrate, and the described pixel electrode of described first substrate of described light penetration is to described liquid crystal layer; And a plurality of orientation projectioies, it is positioned on the described subtend substrate, and between described shared electrode and described liquid crystal layer, each described orientation projection is corresponding to described at least one depression.
The present invention forms gap adjusting structure in dot structure, produce different cell gaps.Wherein, corresponding different cell gap can make the light in the liquid crystal layer have different optical path differences, causes different light penetration rates, to solve the colour cast that existing display panels caused because of the visual angle difference and the problem of color saturation deficiency.Therefore, display panels proposed by the invention and the dot structure display quality that helps to improve LCD.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the dot structure of existing a kind of multiple domain vertical orientation type liquid crystal display.
Fig. 2 is the light penetration rate (transmittance) of existing a kind of display of using the vertical direction distributing type liquid crystal and the characteristic curve diagram (V-T curve) of driving voltage (driving voltage).
Fig. 3 is the light penetration rate of visual angle 50 LCD when spending and the characteristic curve diagram (V-T curve) of driving voltage.
Fig. 4 is for looking synoptic diagram on a kind of dot structure of the present invention.
Fig. 5 is the diagrammatic cross-section according to a kind of dot structure of one embodiment of the invention.
Fig. 6 is the diagrammatic cross-section according to the another kind of dot structure of another embodiment of the present invention.
Fig. 7 is the diagrammatic cross-section of a kind of dot structure of further embodiment of this invention.
Fig. 8 is for looking synoptic diagram on the display panels of one embodiment of the invention.
The primary clustering symbol description
100,400,500,600,700,810: dot structure
110,510,710: the first substrates
114,514: pixel electrode
120,520,720: the second substrates
122,522: shared electrode
130,530: alignment structure
132,432,532,752: the orientation projection
134,434,534,754: the orientation slit
140,540,730: liquid crystal layer
210,220,310,320: the light penetration rate is to the characteristic curve (V-T Curve) of driving voltage
402: dotted line
410: the first area
420: second area
552: projection
740: depression
800: display panels
810a: gap adjusting structure
G1, G2: cell gap
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Fig. 3 is the light penetration rate of visual angle 50 LCD when spending and the characteristic curve diagram (V-T curve) of driving voltage.Wherein, transverse axis is represented be voltage and the longitudinal axis represented be the light penetration rate.The light penetration rate of LCD and the characteristic curve of driving voltage when curve 310 and curve 320 are respectively 3.8 microns of cell gaps with 2.8 microns.As shown in Figure 3, when LCD had different cell gap (cell gap), its light penetration rate also changed thereupon, and wherein the resulting light penetration rate in smaller units gap is less.Hence one can see that, if form the cell gap of different sizes in a LCD, can the light penetration rate of LCD under the different visual angles be compensated.The present invention promptly is by the cell gaps that form different sizes in the pixel of display panels, with the colour cast avoiding being produced when different visual angles is watched LCD and the problem of color saturation deficiency.
In order to promote the display quality of LCD, the present invention can form the cell gaps of different sizes according to above-mentioned inference in dot structure, to improve the colour cast that produces when different visual angles is watched LCD and the problem of color saturation deficiency.
Fig. 4 is for looking synoptic diagram on a kind of dot structure of the present invention.As shown in Figure 4, the present invention dot structure 400 is divided into a plurality of zones (present embodiment is an example with two), and each zone has different cell gaps respectively in order to form the cell gap of different sizes in dot structure 400.More specifically, dot structure 400 for example is divided into a first area 410 and a peripheral second area 420 of central authorities with dotted line 402, wherein first area 410 for example is the middle section corresponding to orientation projection 432, and orientation slit 434 then is around first area 410.
Consider general vertical orientation type liquid crystal display inconsistent problem of brightness under different visual angles, the present invention for example can reduce the cell gap of the first area 410 (or second area 420) of dot structure 400, with the brightness of compensation LCD under different visual angles.With reference to the light penetration rate of LCD shown in Figure 3 and the characteristic curve diagram of driving voltage, can learn that the cell gap when first area 410 (or second area 420) diminishes, then its light penetration rate also reduces relatively, the light penetration rate of tunable integer volumetric pixel structure 400 like this, and then make the brightness of LCD under different visual angles comparatively even.
Below propose several methods that can change the cell gap of dot structure of the present invention, and the collocation icon is illustrated.By and large, the present invention is by forming gap adjusting structure in dot structure, changing cell gap.
Fig. 5 is the diagrammatic cross-section according to a kind of dot structure of one embodiment of the invention, and Fig. 6 is the diagrammatic cross-section according to the another kind of dot structure of another embodiment of the present invention.Please refer to Fig. 5, dot structure 500 comprises first substrate 510, second substrate 520, alignment structure 530 and liquid crystal layer 540.The relation of each inter-module is described below.First substrate 510 has driving component (not shown) and the pixel electrode 514 that is connected driving component.Second substrate 520 is relative with first substrate 510, and has shared electrode 522.Then, alignment structure 530 is positioned on first substrate 510 and second substrate 520.In addition, liquid crystal layer 540 is between first substrate 510 and second substrate 520.
In dot structure 500, driving component for example is a thin film transistor (TFT), and comprises a colored light-filtering units (not shown) on second substrate 520.In addition, alignment structure 530 is constituted by being positioned at an orientation projection 532 on second substrate 520 and an orientation slit 534 that is positioned on the pixel electrode 514.In addition, dot structure 600 shown in Figure 6 is similar to dot structure 500, and the identical meaning of its identical element numbers representative is not described in addition at this.
As Fig. 5 and shown in Figure 6, the present invention forms projection 552 respectively in dot structure 500 and 600, with as gap adjusting structure, change cell gap.In the dot structure 500 of Fig. 5, projection 552 is arranged on first substrate 510, and in the dot structure 600 of Fig. 6, projection 552 is to be arranged on second substrate 520.First substrate 510 for example is a plurality of groups of substrates of thin-film transistor that is formed with thin film transistor (TFT) (not shown), and second substrate 520 for example is a colored filter, and it has a colored light-filtering units (not shown).By the design of projection 552, can therefore can adjust the light penetration rate of dot structure 500 and 600 so that have different cell gap G1 and G2 between first substrate 510 and second substrate 520.
In addition, the present invention also can be chosen on first substrate 510 and second substrate 520 and dispose projection 552 simultaneously, and the present invention does not limit the quantity of projection 552.For example, in the time will in dot structure, forming the cell gap of the different sizes more than three or three, then for example the quantity of projection can be increased to more than two.
It should be noted that at Fig. 5 and projection 552 shown in Figure 6 corresponding to orientation projection 532, and orientation slit 534 is around projection 552.Luminance loss when making projection 552 can avoid increasing the pixel demonstration corresponding to orientation projection 532.Certainly, consider other design requirement, in other embodiment of the present invention, projection 552 can be not corresponding with orientation projection 532 yet.
In above-mentioned two embodiment, the external form of projection 552 for example is an island, and the material of projection 552 comprises monox, silicon nitride, metal, resin, color pigment, photoresist or other material that is fit to.In more detail, the making of projection 552 can be integrated among the existing panel manufacturing process.To go up formation projection 552 at plurality of groups of substrates of thin-film transistor (first substrate 510) is example; projection 552 for example can select with plurality of groups of substrates of thin-film transistor on lock insulation course (gate insulation layer), protective seam (passivation layer), flatness layer (planar layer) or other dielectric film layer forms simultaneously, or optionally form by above-mentioned a plurality of rete storehouses.Similarly, projection 552 also can be integrated in the manufacturing process of colored filter, forms projection 552 to go up at colored filter (second substrate 520).For example, projection can together be made with chromatic filter layer, and its material for example is the color pigment that is formed by ink-jetting style, or is applicable to the colored photoetching glue material of gold-tinted manufacturing process.Therefore, the making of projection 552 can with existing panel manufacturing process compatibility.Certainly, the present invention does not get rid of the method that extra increase manufacturing process number is made projection 552, just, considers cost of manufacture, is still the practice that belongs to comparatively economic among the making of projection 552 is integrated in original panel manufacturing process.
Refer again to Fig. 5 and Fig. 6, projection 552 is positioned on pixel electrode 514 or the shared electrode 522.In fact, projection 552 also can be covered by electrode layer, just is positioned under pixel electrode 514 or the shared electrode 522 (not shown).It should be noted that projection 552 as if making with dielectric material and being positioned on pixel electrode 514 or the shared electrode 522, can influence the voltage difference between pixel electrode 514 and the common electrode 522, thereby make liquid crystal layer 540 that different refractive indexes be arranged.Say that further except changing cell gap (optical path difference), gap adjusting structure of the present invention more can change the refractive index of liquid crystal layer simultaneously, reaches more significant effect with the adjustment to brightness.
Fig. 7 is the diagrammatic cross-section of a kind of dot structure of further embodiment of this invention.Please refer to Fig. 7, present embodiment changes into and form depression on first substrate, to reach the purpose that produces the different units gap in dot structure.Dot structure 700 comprises first substrate 710, second substrate 720 and the folded liquid crystal layer 730 therebetween.Wherein, be formed with a depression 740 on first substrate 710, and 740 the positions of caving in corresponding to orientation projection 752, and centered on by orientation slit 754.Certainly, in other embodiments, depression 740 can not correspond to orientation projection 752 yet, and is positioned on other position.Particularly, depression 740 for example is recessed cup (cavity) structure, on making, for example be earlier on a glass substrate etching form depression 740, again on glass substrate successively sedimentary facies close rete, to form first substrate 710 or second substrate 720.
Present embodiment is to form a depression 740 on first substrate 710, to produce the cell gap G1 and the G2 of two different sizes.Similarly, the present invention also can change on second substrate 720, or forms depression 740 simultaneously on first substrate 710 and second substrate 720, and the present invention does not limit the quantity of depression 740.For example, in the time will in dot structure 700, forming the cell gap of the different sizes more than three or three, then for example the quantity of depression 740 can be increased to more than two.In addition, the present invention also can be in dot structure 700 forms simultaneously as Fig. 5 and projection 552 shown in Figure 6 and depression 720 shown in Figure 7.By the collocation of projection 552, more help the size in adjustment unit gap with depression 720.
Fig. 8 is for looking synoptic diagram on the display panels of one embodiment of the invention.Please refer to Fig. 8, the dot structure 810 that display panels 800 is arranged by a plurality of arrays is formed, and wherein this dot structure 810 can be any among aforementioned a plurality of embodiment.The description of dot structure 810 please refer to aforementioned related text explanation, does not repeat them here.Wherein, display panels 800 comprises an active assembly array base plate and a subtend substrate, the active assembly array base plate of indication is corresponding to first substrate in the previous embodiment herein, it for example is the plurality of groups of substrates of thin-film transistor with a plurality of thin film transistor (TFT)s, and the subtend substrate is corresponding to second substrate in the previous embodiment, and it for example is the colored filter with a plurality of colored light-filtering units.Similarly, has gap adjusting structure 810a in the dot structure 810 of display panels 800, to produce the cell gap of different sizes.Gap adjusting structure 810a herein can be the design of the disclosed number of different types of previous embodiment, or other can adjust the structure of cell gap equally.Use this display panels 800, can overcome LCD has different brightness under different visual angles problem, make LCD have good display quality.
In sum, dot structure of the present invention and display panels with this dot structure have following feature and advantage at least.The present invention forms the cell gap of different sizes in dot structure, with the different problem of light penetration rate of liquid crystal layer under the compensation different visual angles.When being applied in this design in the LCD, can improving vertical alignment type liquid crystal display device and watch the following colour cast that is produced or the shortcoming of color saturation deficiency, improve the display quality of display simultaneously in different visual angles.In addition, gap adjusting structure of the present invention can with existing panel manufacturing process compatibility, can not increase the manufacturing process number, help to alleviate the burden on the cost of manufacture.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when defining with claim.
Claims (8)
1. dot structure, this dot structure comprises:
One first substrate, it has a driving component and a pixel electrode that is connected described driving component, and in order to penetrating a light, and described pixel electrode comprises an orientation slit and at least one depression, and described orientation slit is around described depression;
One second substrate, it is relative with described first substrate, and has a shared electrode;
One liquid crystal layer, it is between described first substrate and described second substrate, and the described pixel electrode of described first substrate of described light penetration is to described liquid crystal layer; And
One orientation projection, it is positioned on described second substrate, and between described shared electrode and described liquid crystal layer, described orientation projection is corresponding to described at least one depression.
2. dot structure as claimed in claim 1 is characterized in that, described driving component is a thin film transistor (TFT).
3. dot structure as claimed in claim 1 is characterized in that, described second substrate more comprises a colored light-filtering units.
4. dot structure as claimed in claim 1 is characterized in that, described depression comprises a recessed cup structure.
5. display panels, this display panels comprises:
One active assembly array base plate, it has a plurality of driving components of array arrangement and a plurality of pixel electrodes that connect described driving component respectively, in order to penetrating a light, and described each pixel electrode comprises an orientation slit and at least one depression, and described orientation slit is around described depression;
One subtend substrate, it is relative with described active assembly array base plate, and described subtend substrate has a shared electrode;
One liquid crystal layer, it is between described active assembly array base plate and described subtend substrate, and the described pixel electrode of described first substrate of described light penetration is to described liquid crystal layer; And
A plurality of orientation projectioies, it is positioned on the described subtend substrate, and between described shared electrode and described liquid crystal layer, each described orientation projection is corresponding to described at least one depression.
6. display panels as claimed in claim 5 is characterized in that, described driving component is a thin film transistor (TFT).
7. display panels as claimed in claim 5 is characterized in that, described subtend substrate comprises a colored filter.
8. display panels as claimed in claim 5 is characterized in that, described depression comprises a recessed cup structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110233020.XA CN102289108B (en) | 2006-11-27 | 2006-11-27 | Pixel structure and liquid crystal display panel with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110233020.XA CN102289108B (en) | 2006-11-27 | 2006-11-27 | Pixel structure and liquid crystal display panel with same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610146851 Division CN1952759A (en) | 2006-11-27 | 2006-11-27 | Pixel structure and LCD panel comprising same |
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| CN102289108A true CN102289108A (en) | 2011-12-21 |
| CN102289108B CN102289108B (en) | 2014-03-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106597731A (en) * | 2016-12-30 | 2017-04-26 | 惠科股份有限公司 | Picture element structure improving color cast and display device applying same |
| CN107450210A (en) * | 2017-08-25 | 2017-12-08 | 惠科股份有限公司 | Liquid crystal display device and its driving method |
| WO2018120393A1 (en) * | 2016-12-30 | 2018-07-05 | 惠科股份有限公司 | Pixel structure of liquid crystal display panel and display device using pixel structure |
| WO2018120646A1 (en) * | 2016-12-30 | 2018-07-05 | 惠科股份有限公司 | Display panel, and liquid crystal display panel and liquid crystal display device using same |
| US10969640B2 (en) | 2017-08-25 | 2021-04-06 | HKC Corporation Limited | Liquid crystal display device and driving method thereof |
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| CN1544979A (en) * | 2003-11-26 | 2004-11-10 | 友达光电股份有限公司 | Thin film transistor liquid crystal display with locality multi-domain perpendicular direction matching mode |
| CN1700066A (en) * | 2004-05-21 | 2005-11-23 | 三洋电机株式会社 | Semi penetration type liquid crystal display and colorful liquid crystal display device |
| JP2006126775A (en) * | 2004-10-26 | 2006-05-18 | Quanta Display Inc | Multi-domain vertically aligned liquid crystal display |
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| CN1544979A (en) * | 2003-11-26 | 2004-11-10 | 友达光电股份有限公司 | Thin film transistor liquid crystal display with locality multi-domain perpendicular direction matching mode |
| CN1700066A (en) * | 2004-05-21 | 2005-11-23 | 三洋电机株式会社 | Semi penetration type liquid crystal display and colorful liquid crystal display device |
| JP2006126775A (en) * | 2004-10-26 | 2006-05-18 | Quanta Display Inc | Multi-domain vertically aligned liquid crystal display |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597731A (en) * | 2016-12-30 | 2017-04-26 | 惠科股份有限公司 | Picture element structure improving color cast and display device applying same |
| WO2018120393A1 (en) * | 2016-12-30 | 2018-07-05 | 惠科股份有限公司 | Pixel structure of liquid crystal display panel and display device using pixel structure |
| WO2018120646A1 (en) * | 2016-12-30 | 2018-07-05 | 惠科股份有限公司 | Display panel, and liquid crystal display panel and liquid crystal display device using same |
| WO2018120509A1 (en) * | 2016-12-30 | 2018-07-05 | 惠科股份有限公司 | Pixel structure and display panel using same |
| US20190011784A1 (en) * | 2016-12-30 | 2019-01-10 | HKC Corporation Limited | Pixel structure and display panel applying the same |
| US10429701B2 (en) | 2016-12-30 | 2019-10-01 | HKC Corporation Limited | Display panel and LCD panel and LCD apparatus using the same |
| US10444568B2 (en) | 2016-12-30 | 2019-10-15 | HKC Corporation Limited | Pixel structure of liquid crystal display panel and display device using same |
| CN107450210A (en) * | 2017-08-25 | 2017-12-08 | 惠科股份有限公司 | Liquid crystal display device and its driving method |
| WO2019037339A1 (en) * | 2017-08-25 | 2019-02-28 | 惠科股份有限公司 | Liquid crystal display apparatus and drive method therefor |
| US10969640B2 (en) | 2017-08-25 | 2021-04-06 | HKC Corporation Limited | Liquid crystal display device and driving method thereof |
| US11054682B2 (en) | 2017-08-25 | 2021-07-06 | HKC Corporation Limited | Liquid crystal display device and driving method thereof |
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|---|---|
| CN102289108B (en) | 2014-03-12 |
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