CN103439821A - Liquid crystal display array substrate and liquid crystal display - Google Patents
Liquid crystal display array substrate and liquid crystal display Download PDFInfo
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- CN103439821A CN103439821A CN2013103755013A CN201310375501A CN103439821A CN 103439821 A CN103439821 A CN 103439821A CN 2013103755013 A CN2013103755013 A CN 2013103755013A CN 201310375501 A CN201310375501 A CN 201310375501A CN 103439821 A CN103439821 A CN 103439821A
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Abstract
The invention discloses a liquid crystal display array substrate which comprises a plurality of data lines and a plurality of scanning lines. The data lines and the scanning lines are crisscrossed and form a plurality of pixel units in an enclosure mode. Each pixel unit comprises pixel electrodes, the data lines and the pixel electrodes are partially overlapped on space, an insulation layer is laid on the whole layer where the data lines are located, a transparent flat layer is laid on the insulation layer, and the transparent flat layer only covers the portion above the data lines. The invention further provides a liquid crystal display adopting the array substrate. According to the liquid crystal display array substrate and the liquid crystal display, the transparent flat layer on partial of the opening portion of the liquid crystal display array substrate is hollowed out, and therefore the effects of improving opening rate and light-transmitting rate can be achieved; meanwhile, heights in the pixel units are different, luminance change caused by visual angle change can be effectively reduced, and the effects of non-gray-scale-reversal and low color cast can be achieved.
Description
Technical field
The invention belongs to field of liquid crystal display, particularly the liquid crystal display of LCD (Liquid Crystal Display) array substrate and this array base palte of employing.
Background technology
Along with scientific and technical development, people are also more and more higher to the performance requirement of liquid crystal display.Wherein, it is brightness that a very important performance requirement is arranged in liquid crystal display, and determines that the most important factor of brightness is exactly the aperture opening ratio of LCD (Liquid Crystal Display) array substrate.In the prior art, generally by orthogonal sweep trace and data line, surround each pixel cell, pixel electrode is set on pixel cell, but the aperture opening ratio of general such array base palte is smaller, in order to increase aperture opening ratio, thereby usually between pixel electrode and data line, increase the aperture opening ratio that the layer of transparent flatness layer increases array base palte, as shown in Figure 1, on substrate 1 on data line 2 place layers successively whole face be equipped with insulation course 3 and transparent flatness layer 4, pixel electrode 5 can cover the top of data line 2 like this, such structure has not only increased the aperture opening ratio of array base palte, and due to the distance increased between data line and pixel electrode, thereby avoided due to bad demonstration situations such as crosstalking of causing of coupling effect or flickers.But, due to the transparent insulation bed thickness, so can cause reducing the part light transmission rate.
Summary of the invention
Goal of the invention: the problem and shortage existed for above-mentioned prior art the purpose of this invention is to provide a kind of effective LCD (Liquid Crystal Display) array substrate that promotes light transmission rate.
Technical scheme: for achieving the above object, the technical solution used in the present invention is a kind of LCD (Liquid Crystal Display) array substrate, comprise crisscross some data lines and some sweep traces, described a plurality of data line and sweep trace surround a plurality of pixel cells, each pixel cell includes pixel electrode, described data line and pixel electrode spatially partly overlap, and wherein on the layer of described data line place, whole face is equipped with insulation course, be equipped with transparent flatness layer on described insulation course, described transparent flatness layer only is coated on the upper area of data line.
The present invention also provides a kind of LCD (Liquid Crystal Display) array substrate, comprise crisscross some data lines and some sweep traces, described a plurality of data line and sweep trace surround a plurality of pixel cells, each pixel cell includes pixel electrode, described data line and pixel electrode spatially partly overlap, and wherein on the layer of described data line place successively whole face be equipped with insulation course and transparent flatness layer, the transparent flatness layer of described partial pixel electrode institute overlay area is and hollows out shape, and be provided with transparent flatness layer at described data line and pixel electrode in the subregion at space overlap.
In described pixel cell, public electrode wire also is being set, is wherein arranging after the transparent flatness layer of pixel electrode institute overlay area of public electrode wire and transparent flatness layer that the pixel electrode institute overlay area of public electrode wire is not set hollow out and be asymmetric shape.
To change with visual angle the brightness cause and change in order to reduce, reach without GTG reversion and lower colour cast, in described pixel cell, half transparent flatness layer of pixel electrode institute overlay area is and hollows out shape.
The thickness of described transparent flatness layer is 2.3 * 10
-6m, such thickness can effectively be avoided because too closely will causing of pixel electrode and data line crosstalked or the situation such as flicker.
Because the translucent effect of polyimide, polyacrylate and poly-silicide is good, described transparent flatness layer is the transparent flatness layer that polyimide, polyacrylate or poly-silicide are made.
The present invention also provides a kind of liquid crystal display, comprise: the array base palte be oppositely arranged and color membrane substrates, and the liquid crystal between sandwiched array base palte and color membrane substrates, described array base palte comprises crisscross some data lines and some sweep traces, and public electrode wire, described a plurality of data line and sweep trace surround a plurality of pixel cells, each pixel cell includes pixel electrode, at described data line and pixel electrode, spatially partly overlap, and wherein on the layer of described data line place successively whole face be equipped with insulation course and transparent flatness layer, transparent flatness layer in zone, described pixel electrode institute cover part is and hollows out shape, and be provided with transparent flatness layer at described data line and pixel electrode in the subregion at space overlap, and being hollowed out distance between the array base palte of transparent flatness layer region and color membrane substrates is greater than and is not hollowed out the array base palte of transparent flatness layer region and the distance between color membrane substrates.
Principle of work: in the aperture opening ratio of the pixel cell of the present invention on guaranteeing LCD (Liquid Crystal Display) array substrate, hollow out that pixel cell and sweep trace upper center are divided or whole transparent flatness layer to reach the effect of effective lifting light transmission rate.Utilize peristome to dig up transparent flatness layer simultaneously, thereby form liquid crystal particle dump angle difference, do not hollow out the part of transparent flatness layer, spatial altitude is little, and the electric field force that the liquid crystal particle is subject to is just large, thereby the angle that the liquid crystal particle is toppled over is large, and hollow out the part of transparent flatness layer, spatial altitude is large, and electric field force therebetween is little, thereby the angle that the liquid crystal particle is toppled over is little.Will produce multiple liquid crystal particle of toppling over to different directions on such array base palte, thereby can reduce with visual angle, change the brightness variation caused, reach without GTG reversion and lower colour cast.
Beneficial effect: the present invention compared with prior art, the transparent flatness layer of the peristome by pixel cell on the cut-out LCD (Liquid Crystal Display) array substrate, thereby reach the effect of capable of increasing opening rate and light transmission rate, simultaneously because the height on array base palte differs, can effectively reduce with visual angle and change the variation that causes brightness, reach without GTG reversion and lower colour cast.
The accompanying drawing explanation
The sectional view figure that Fig. 1 is traditional array base palte;
Fig. 2 is the array base palte schematic diagram that the present invention is provided with transparent flatness layer on data line;
The array base palte that Fig. 3 is Fig. 2 is along the sectional view of tangent line A-A ';
The array base palte that Fig. 4 is Fig. 2 is along the sectional view of tangent line B-B ';
Fig. 5 is the schematic diagram that data line of the present invention and sweep trace are provided with the array base palte of transparent flatness layer;
The array base palte that Fig. 6 is Fig. 5 is along the sectional view of tangent line C-C ';
The array base palte that Fig. 7 is Fig. 5 is along the sectional view of tangent line D-D ';
Fig. 8 is that the present invention removes the schematic diagram of the array base palte of transparent flatness layer along the pixel electrode gap;
The array base palte that Fig. 9 is Fig. 8 is along the sectional view of tangent line E-E ';
The array base palte that Figure 10 is Fig. 8 is along the sectional view of tangent line F-F ';
Figure 11 is that in array base palte provided by the invention, the liquid crystal toppling direction is walked figure;
The schematic diagram of the array base palte that Figure 12 is the transparent flatness layer in cut-out pixel cell of the present invention zone;
Figure 13 is the structural representation of the liquid crystal display of employing array base palte of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of various equivalents of the present invention.
Embodiment 1:
As shown in Fig. 2～4, LCD (Liquid Crystal Display) array substrate, comprise and be arranged on some data lines 2 crisscross on substrate 1 and some sweep traces 6, a plurality of data lines 2 and sweep trace 6 surround a plurality of pixel cells 7, be provided with public electrode wire 8 in pixel cell 7, public electrode wire 8 is divided into three zones by pixel cell 7.Each pixel cell 7 includes pixel electrode 5, wherein data line 2 and pixel electrode 5 spatially partly overlap, on data line 2 place layers, whole face is equipped with insulation course 3, only between the insulation course 3 on data line 2 and pixel electrode 5 spatially partly overlap zone and pixel electrode 5, lay transparent flatness layer 4, so not only effectively reduce the coupling capacitance between pixel electrode 5 and data line 2, improved the aperture opening ratio of the peristome of LCD (Liquid Crystal Display) array substrate simultaneously, owing to there is no transparent flatness layer 4 in pixel cell, so also effectively increased light transmission rate, light transmission rate has promoted 1%.
Embodiment 2:
As shown in Fig. 5～7, LCD (Liquid Crystal Display) array substrate, comprise and be arranged on the crisscross some data lines 2 of substrate 1 and some sweep traces 6, a plurality of data lines 2 and sweep trace 6 surround a plurality of pixel cells 7, be provided with public electrode wire 8 in pixel cell 7, public electrode wire 8 is divided into three zones by pixel cell 7.Each pixel cell 7 includes pixel electrode 5, wherein data line 2 and pixel electrode 5 spatially partly overlap, on data line 2 place layers, whole face is equipped with insulation course 3 and transparent flatness layer 4 successively, be retained in insulation course 3 tops, sweep trace 6 tops, region and the data line 2 of data line place aspect and the transparent flatness layer 4 of pixel electrode 5 overlapping regions, the transparent flatness layer 4 in other zones on LCD (Liquid Crystal Display) array substrate is hollowed out; Area of knockout with for there is difference in height in area of knockout, improved like this aperture opening ratio of the peristome of LCD (Liquid Crystal Display) array substrate, and owing to there is no transparent flatness layer 4 in pixel cell 10, just effectively promoted light transmission rate, light transmission rate has promoted 1%.
Embodiment 3:
As shown in Fig. 8～10, LCD (Liquid Crystal Display) array substrate comprises and is arranged on the crisscross some data lines 2 of substrate 1 and some sweep traces 6 that a plurality of data lines 2 and sweep trace 6 surround a plurality of pixel cells 7, are provided with public electrode wire 8 in pixel cell 7.Each pixel cell 7 includes pixel electrode 5, wherein data line 2 and pixel electrode 5 spatially partly overlap, on data line 2 place layers, whole face is equipped with insulation course 3 and transparent flatness layer 4 successively, be retained in insulation course 3 tops, sweep trace 6 tops, region and the data line 2 of data line place aspect and the transparent flatness layer 4 of pixel electrode 5 overlapping regions, the transparent flatness layer 4 in other zones on LCD (Liquid Crystal Display) array substrate is hollowed out; Wherein, the zone arranged in pixel cell 7 after the transparent flatness layer 4 of 5 overlay areas of pixel electrode of public electrode wire 8 and transparent flatness layer 4 that 5 overlay areas of pixel electrode of public electrode wire 8 are not set hollow out is asymmetric shape.Effectively raise like this aperture opening ratio and the light transmission rate of LCD (Liquid Crystal Display) array substrate peristome.
As shown in figure 11, if the transparent flatness layer 4 in each pixel cell 7 is hollowed out, liquid crystal in each pixel cell can produce the flip angle of 4 directions so, change along with the people visual angle also can cause the change of brightness like this, the brightness caused in order to reduce visual angle to change as far as possible changes, and has provided a kind of method that part hollows out in embodiment.
Embodiment 4:
As shown in figure 12, LCD (Liquid Crystal Display) array substrate, comprise and be arranged on the crisscross some data lines 2 of substrate 1 and some sweep traces 6, a plurality of data lines 2 and sweep trace 6 surround a plurality of pixel cells 7, be provided with public electrode wire 8 in pixel cell 7, public electrode wire 8 is divided into three zones by pixel cell 7.Each pixel cell 7 includes pixel electrode 5, wherein data line 2 and pixel electrode 5 spatially partly overlap, on data line 2 place layers, whole face is equipped with insulation course 3 and transparent flatness layer 4 successively, wherein, half transparent flatness layer 4 of 5 overlay areas of pixel electrode in pixel cell 7 is hollowed out, wherein, in three zones that preferably public electrode wire 8 in pixel cell 7 are divided into, each half transparent flatness layer 4 of zone hollows out, as shown in the dotted portion in Figure 12, two highly different zones will just have been formed in each pixel cell like this.
As shown in figure 13, adopt the liquid crystal display of array base palte of the present invention, LCD (Liquid Crystal Display) array substrate in above-described embodiment is placed on respectively between color membrane substrates 9 and array base palte 10, because the height in each pixel cell 7 is different, the distance be placed in like this between pixel cell 7 liquid crystal particles 11 and color membrane substrates 9 is just different, thereby the electric field force that liquid crystal particle 11 is subject to is just different, the liquid crystal particle 11 and the distance between color membrane substrates 9 that wherein hollow out in transparent flatness layer 4 zones are large, thereby the electric field force that liquid crystal particle 11 is subject to is just little, the angle that liquid crystal particle 11 is toppled over is just little, liquid crystal particle 11 and the distance between color membrane substrates 9 in being provided with transparent flatness layer 4 zones are little, the electric field force that liquid crystal particle 11 is subject to like this is large, thereby liquid crystal particle 11 flip angles are just large.Because the angle that liquid crystal particle 11 is toppled over is just different, thereby the liquid crystal in a pixel cell just can produce the inclination angle of a plurality of different directions, to such an extent as to can reduce with visual angle, changes the variation that causes brightness, reaches without GTG reversion and lower colour cast.
Claims (9)
1. a LCD (Liquid Crystal Display) array substrate, comprise crisscross some data lines and some sweep traces, described a plurality of data line and sweep trace surround a plurality of pixel cells, each pixel cell includes pixel electrode, it is characterized in that: described data line and pixel electrode spatially partly overlap, and wherein on the layer of described data line place, whole face is equipped with insulation course, is equipped with transparent flatness layer on described insulation course, and described transparent flatness layer only is coated on the upper area of data line.
2. a LCD (Liquid Crystal Display) array substrate, comprise crisscross some data lines and some sweep traces, described a plurality of data line and sweep trace surround a plurality of pixel cells, each pixel cell includes pixel electrode, it is characterized in that: described data line and pixel electrode spatially partly overlap, and wherein on the layer of described data line place successively whole face be equipped with insulation course and transparent flatness layer, the transparent flatness layer of described partial pixel electrode institute overlay area is and hollows out shape, and be provided with transparent flatness layer at described data line and pixel electrode in the subregion at space overlap.
3. LCD (Liquid Crystal Display) array substrate according to claim 2, it is characterized in that: in described pixel cell, public electrode wire also is being set, is wherein arranging after the transparent flatness layer of pixel electrode institute overlay area of public electrode wire and transparent flatness layer that the pixel electrode institute overlay area of public electrode wire is not set hollow out and be asymmetric shape.
4. LCD (Liquid Crystal Display) array substrate according to claim 2 is characterized in that: half transparent flatness layer of described pixel electrode institute overlay area is and hollows out shape.
5. according to the described LCD (Liquid Crystal Display) array substrate of any one in claim 1-4, it is characterized in that: the thickness of described transparent flatness layer is 2.3 * 10
-6m.
6. according to the described LCD (Liquid Crystal Display) array substrate of any one in claim 1-4, it is characterized in that: described transparent flatness layer is the transparent flatness layer that polyimide, polyacrylate or poly-silicide are made.
7. a liquid crystal display, comprise: the array base palte be oppositely arranged and color membrane substrates, and the liquid crystal between sandwiched array base palte and color membrane substrates, described array base palte comprises crisscross some data lines and some sweep traces, and public electrode wire, described a plurality of data line and sweep trace surround a plurality of pixel cells, each pixel cell includes pixel electrode, it is characterized in that: at described data line and pixel electrode, spatially partly overlap, and wherein on the layer of described data line place successively whole face be equipped with insulation course and transparent flatness layer, transparent flatness layer in zone, described pixel electrode institute cover part is and hollows out shape, and be provided with transparent flatness layer at described data line and pixel electrode in the subregion at space overlap, and being hollowed out distance between the array base palte of transparent flatness layer region and color membrane substrates is greater than and is not hollowed out the array base palte of transparent flatness layer region and the distance between color membrane substrates.
8. liquid crystal display according to claim 7, it is characterized in that: the thickness of described transparent flatness layer is 2.3 * 10
-6m.
9. liquid crystal display according to claim 7, it is characterized in that: described transparent flatness layer is the transparent flatness layer that polyimide, polyacrylate or poly-silicide are made.
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| CN201310375501.3A CN103439821B (en) | 2013-08-26 | 2013-08-26 | A kind of LCD (Liquid Crystal Display) array substrate and liquid crystal display |
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Cited By (4)
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| CN104597647A (en) * | 2015-01-21 | 2015-05-06 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN107315292A (en) * | 2016-04-26 | 2017-11-03 | 群创光电股份有限公司 | Display panel and its manufacture method |
| CN110543042A (en) * | 2019-09-30 | 2019-12-06 | 厦门天马微电子有限公司 | Display device |
| US10886488B2 (en) | 2018-11-21 | 2021-01-05 | Au Optronics Corporation | Display device |
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| CN110543042B (en) * | 2019-09-30 | 2022-03-04 | 厦门天马微电子有限公司 | Display device |
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| CN103439821B (en) | 2017-03-01 |
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