CN105093656A - Liquid crystal display panel, driving method thereof and liquid crystal display device - Google Patents
Liquid crystal display panel, driving method thereof and liquid crystal display device Download PDFInfo
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- CN105093656A CN105093656A CN201510541274.6A CN201510541274A CN105093656A CN 105093656 A CN105093656 A CN 105093656A CN 201510541274 A CN201510541274 A CN 201510541274A CN 105093656 A CN105093656 A CN 105093656A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
The invention discloses a liquid crystal display panel, a driving method thereof and a liquid crystal display device. The liquid crystal display panel comprises a first substrate and a second substrate which are arranged oppositely; multiple drive arrays formed by subpixel drive units are arranged on the opposite surfaces of the first substrate and the second substrate, multiple subpixel arrays formed by subpixels are arranged on the surface, opposite to the first substrate, of the second substrate, a black matrix is arranged between every two subpixels, and the subpixels correspond to the subpixel drive units one to one; each subpixel comprises a first subpixel region and second subpixel regions, wherein the first subpixel region is a colored subpixel region, and the second subpixel regions are white subpixel regions. The drive arrays control the first subpixel regions and the second subpixel regions. A liquid crystal molecular layer is arranged between the first substrate and the second substrate.
Description
Technical field
The present invention relates to display technique field, particularly a kind of display panels and driving method thereof and there is the liquid crystal indicator of this display panels.
Background technology
Now, the display grade of consumer to portable mobile terminal just progressively improves, and what high PPI (PixelPerInch, per inch pixel) showed designs and develops the large focus becoming display industry.The product of present stage more than 800PPI occurs, but the display panel of high PPI product exists a lot of problem: manufacture process requirement is high, and cause the display panel fine ratio of product of the product of high PPI to promote difficulty, cost is also difficult to reduce; Aperture opening ratio is less, and penetrance is on the low side; The width of black matrix is less, and contraposition colour cast is more serious.
In this context, sub-pixel is played up (low PPI product, by pixel order of rationally arranging, makes it have the display effect of high PPI by pixel rendering), and technology is arisen at the historic moment, for high PPI technical market provides a shortcut.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of display panels and driving method thereof.Described display panels when ensureing color saturation, can promote the brightness of display panels.
A kind of display panels is provided according to an aspect of the present invention, it is characterized in that, comprising: the first substrate be oppositely arranged and second substrate; The surface that described first substrate is relative with described second substrate is provided with the driving array that multiple sub-pixel driver element is formed; The surface that described second substrate is relative with described first substrate is provided with the array of sub-pixels that multiple sub-pixel is formed, black matrix is comprised between each described sub-pixel, described sub-pixel and described sub-pixel driver element one_to_one corresponding, each described sub-pixel comprises: the first sub-pixel area, and described first sub-pixel area is colored sub-pixels district; Second sub-pixel area, described second sub-pixel area is white sub-pixels district; Described driving array controls described first sub-pixel area and described second sub-pixel area respectively; Layer of liquid crystal molecule, is arranged between described first substrate and described second substrate.
Alternatively, in each described sub-pixel, the ratio of the second sub-pixel area area occupied and described first sub-pixel area area occupied is less than or equal to 1/3.
Alternatively, the shape of described sub-pixel is rectangle, and multiple described sub-pixel is matrix arrangement.
Alternatively, described second sub-pixel area in each described sub-pixel is arranged at the both sides of described first sub-pixel area respectively.
Alternatively, in same sub-pixel, be positioned at the area equation of described second sub-pixel area of described first both sides, sub-pixel area.
Alternatively, in same sub-pixel, the area being positioned at the second sub-pixel area of described first side, sub-pixel area is greater than the area of the second sub-pixel area of its opposite side.
Alternatively, described first sub-pixel area is any one in red sub-pixel district, green sub-pixels district and blue subpixels district.
Alternatively, described red sub-pixel district is provided with Red lightscreening plate, and described green sub-pixels district is provided with green color filter and described blue subpixels district is provided with blue color filter.
Alternatively, in every a line of described array of sub-pixels, the first sub-pixel area of three sub-pixels of arbitrary neighborhood is the permutation and combination in red sub-pixel district, green sub-pixels district and blue subpixels district, and in every adjacent rows, the first sub-pixel area of each row two sub-pixels is different.
Alternatively, in described array of sub-pixels often the first sub-pixel area of row sub-pixel respectively with red sub-pixel district, green sub-pixels district, blue subpixels district cycle arrangement, and the first sub-pixel area color of the sub-pixel of same row is identical in odd-numbered line, in even number line, the first sub-pixel area color of the sub-pixel of same row is identical.
Alternatively, in described array of sub-pixels, the arrangement of subpixels of even number line offsets to one side in the row direction relative to the arrangement of subpixels of odd-numbered line.
Alternatively, the distance of described skew is less than or equal to 3/4 of the spacing distance of each sub-pixel on offset direction.
Alternatively, in described array of sub-pixels, the sub-pixel of every three rows and four columns forms a display unit, and every two laterally adjacent display units share two row sub-pixels, and every two longitudinally adjacent display units share two row sub-pixels.
Alternatively, in described array of sub-pixels, the sub-pixel of every three rows and four columns forms a display unit, and every two laterally adjacent display units share two row sub-pixels, two display units that every longitudinal direction is adjacent share two row sub-pixels, wherein, in each display unit, the luminance distribution coefficient being positioned at the sub-pixel of middle two row is the twice of the luminance distribution coefficient of the two row sub-pixels being positioned at both sides.
Alternatively, described driving array comprises: the multiple sub-pixel driver elements being arranged at many first grid polar curves on described first substrate, a plurality of data lines and being limited by described first grid polar curve and data line; Described sub-pixel driver element comprises pixel electrode and the first film transistor; Described pixel electrode is corresponding with the position of described first sub-pixel area, and the grid of described the first film transistor is electrically connected with described first grid polar curve, and source electrode is electrically connected with described data line, and drain electrode is electrically connected with described pixel electrode; Be arranged at many second gate lines on described first substrate, multiple supplementary electrode and multiple second thin film transistor (TFT); Described supplementary electrode is arranged between described pixel electrode, and corresponding with the position of described black matrix; The grid of the second thin film transistor (TFT) described in each is all electrically connected with corresponding described second gate line, and source electrode is electrically connected with corresponding described data line, and drain electrode is electrically connected with corresponding described supplementary electrode; The first control circuit be electrically connected with described first grid polar curve, described first control circuit, by controlling unlatching or the closedown of described the first film transistor, controls the voltage of described pixel electrode; The second control circuit be electrically connected with described second gate line, described second control circuit, by controlling unlatching or the closedown of described second thin film transistor (TFT), controls the voltage of described supplementary electrode.
Alternatively, described in described the first film transistor AND gate, the second thin film transistor (TFT) forms J-shaped; Described first grid polar curve and described second gate line insulate and be arranged in parallel.
Alternatively, described display panels also comprises detection module, and described detection module detects the brightness of all first sub-pixel area on whole described display panels.
According to another aspect of the present invention, a kind of liquid crystal indicator is also provided, it is characterized in that, comprise above-mentioned display panels.
According to a further aspect of the invention, also provide a kind of driving method, for above-mentioned display panels, it is characterized in that, comprise the steps: that the first sub-pixel area driving the sub-pixel drive unit drives sub-pixel in array is luminous; Detection module detects the brightness of all first sub-pixel area on whole described display panels; Drive the second sub-pixel area of the sub-pixel drive unit drives sub-pixel in array luminous.
Alternatively, when the brightness in brightness and all green sub-pixels districts in all red sub-pixel districts on described display panels, all blue subpixels districts is equal, drive sub-pixel drive unit drives second sub-pixel area in array luminous.
Alternatively, the driving voltage of described second sub-pixel area is identical with the driving voltage of described first sub-pixel area.
Compared to prior art, the display panels that the embodiment of the present invention provides and liquid crystal indicator, each sub-pixel comprises the first sub-pixel area and the second sub-pixel area, wherein, first sub-pixel area is colored sub-pixels district, second sub-pixel area is white sub-pixels district, by luminous increasing opening rate and the penetrance in white sub-pixels district, and by the arrangement of sub-pixel with play up, high PPI display effect is obtained with lower actual PPI design, reduce high PPI display panel manufacturing process difficulty, cost-saving.In addition, the setting in white sub-pixels district also can increase the distance between adjacent colored sub-pixels district, improves contraposition colour cast.In addition, it is luminous that the driving array that the present invention is also formed by sub-pixel driver element controls the first sub-pixel area and the second sub-pixel area respectively, color saturation decay that is that occur is serious with the first sub-pixel area is simultaneously luminous to avoid the second sub-pixel area, promotes the brightness of display panels when ensureing color saturation.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the vertical section structure schematic diagram of display panels of the present invention;
The pixel arrangement schematic diagram of the display panels that Fig. 2 provides for one embodiment of the present of invention;
The pixel arrangement schematic diagram of the display panels that Fig. 3 provides for an alternative embodiment of the invention;
Luminance distribution Relationship of Coefficients schematic diagram between the display unit sub-pixel of the display panels that Fig. 4 provides for one embodiment of the present of invention;
The structural representation of a kind of first substrate that Fig. 5 provides for one embodiment of the present of invention;
Fig. 6 is the structural representation of the sub-pixel driver element in the first substrate shown in Fig. 5;
Fig. 7 is the partial enlarged drawing of the sub-pixel driver element shown in Fig. 6;
Fig. 8 is the cross-sectional view of the sub-pixel driver element in Fig. 7 along aa ' direction;
Fig. 9 is the cross-sectional view of the sub-pixel driver element in Fig. 7 along bb ' direction; And
The process flow diagram of the driving method of the display panels that Figure 10 provides for one embodiment of the present of invention.
Embodiment
Below in conjunction with drawings and Examples, technology contents of the present invention is described further.
Refer to Fig. 1 and Fig. 2, which respectively show the pixel arrangement schematic diagram of the display panels that the vertical section structure schematic diagram of display panels of the present invention and one embodiment of the present of invention provide.In a preferred embodiment of the invention, display panels comprises: first substrate 1, second substrate 2 and layer of liquid crystal molecule 3.
As shown in Figure 1, second substrate 2 and first substrate 1 are oppositely arranged.Layer of liquid crystal molecule 3 is arranged between first substrate 1 and second substrate 2.
The surface that second substrate 2 is relative with first substrate 1 is provided with the array of sub-pixels that multiple sub-pixel 21 is formed, and comprises black matrix 22 between each sub-pixel 21.Fig. 2 is described for a part of array of sub-pixels (five-element six arrange) in display panels.As shown in Figure 2, each sub-pixel 21 comprises: the first sub-pixel area 211 and the second sub-pixel area 212.
First sub-pixel area 211 is colored sub-pixels district.As shown in Figure 2, alternatively, this colored sub-pixels district refers to any one in red sub-pixel district R, green sub-pixels district G and blue subpixels district B.In one embodiment of the invention, the formation of red sub-pixel district R, green sub-pixels district G and blue subpixels district B realizes by being provided with colo(u)r filter on second substrate 2, specifically, the formation of the red sub-pixel district R on second substrate 2 is that the position of predetermined on second substrate 2 red sub-pixel district R arranges Red lightscreening plate; The formation of the green sub-pixels district G on second substrate 2 is that the position of predetermined on second substrate 2 green sub-pixels district G arranges green color filter; The formation of the blue subpixels district B on second substrate 2 is that the position of predetermined on second substrate 2 blue subpixels district B arranges blue color filter.
Alternatively, in every a line of described array of sub-pixels, the first sub-pixel area 211 of three sub-pixels 21 of arbitrary neighborhood is the permutation and combination of red sub-pixel district R, green sub-pixels district G and blue subpixels district B, and in every adjacent rows, the first sub-pixel area 211 of two sub-pixels 21 of same row is different.
Alternatively, in array of sub-pixels often the first sub-pixel area 211 of row sub-pixel 21 respectively with red sub-pixel district R, green sub-pixels district G, blue subpixels district B cycle arrangement, and the first sub-pixel area 211 color of the sub-pixel 21 of same row is identical in odd-numbered line (for the first row in Fig. 2, the third line and fifth line), in even number line (for the second row in Fig. 2 and fourth line), the first sub-pixel area 211 color of the sub-pixel 21 of same row is identical.In the array of sub-pixels that the five-element six shown in Fig. 2 arrange, the first sub-pixel area 211 of the sub-pixel 21 of the first row of described array of sub-pixels, the third line and fifth line is with the arrangement mode cycle arrangement of red sub-pixel district R, green sub-pixels district G, blue subpixels district B from left to right successively; And the first sub-pixel area 211 of the second row of described array of sub-pixels and the sub-pixel 21 of fourth line is with the arrangement mode cycle arrangement of blue subpixels district B, red sub-pixel district R, green sub-pixels district G from left to right successively.
Second sub-pixel area 212 is white sub-pixels district.The formation in white sub-pixels district can be that the mode that the position in predetermined on second substrate 2 white sub-pixels district arranges transparent filter or do not arrange any optical filter realizes.Alternatively, the first sub-pixel area 211 area occupied in each sub-pixel 21 is equal.In order to not affect the brightness of display panels when only driving first sub-pixel area 211 (the second sub-pixel area 211 does not drive), in each sub-pixel 21, the ratio of the second sub-pixel area 212 area occupied and the first sub-pixel area 211 area occupied is less than or equal to 1/3.
Further, in the preferred embodiment shown in figure 2, the shape of each sub-pixel 21 is rectangle, and the arrangement in matrix between multiple sub-pixel 21.First sub-pixel area 211 and the second sub-pixel area 212 are roughly rectangle.The second sub-pixel area 212 in each sub-pixel 21 is arranged at the both sides of the first sub-pixel area 211 respectively, and the second sub-pixel area 212 namely in each sub-pixel 21 is divided into two parts by the first sub-pixel area 211.In same sub-pixel 21, be positioned at the area equation of the second sub-pixel area 212 of the first both sides, sub-pixel area 211.In some change case, in same sub-pixel 21, the area being positioned at the second sub-pixel area 212 of the first both sides, sub-pixel area 211 also can be unequal, and the area being such as positioned at the second sub-pixel area 212 of the first side, sub-pixel area 211 is greater than the area of the second sub-pixel area 212 of opposite side.In addition, the shape of each sub-pixel 21 can change, and can be such as circle, triangle etc., in these change case, the second sub-pixel area can be around arranging outside the first sub-pixel area, does not repeat them here.
Further, refer to Fig. 3, it illustrates the pixel arrangement schematic diagram of the display panels that an alternative embodiment of the invention provides.In the embodiment shown in fig. 3, the sub-pixel 21 of even number line in described array of sub-pixels (can see the second row in Fig. 3 and fourth line) arranges to arrange relative to the sub-pixel 21 of odd-numbered line (can see the first row in Fig. 3, the third line and fifth line) and offsets to one side in the row direction.Alternatively, the distance of described skew is less than or equal to 3/4 of the spacing distance of each sub-pixel 21 on offset direction, thus sawtooth appears in the picture preventing display panels from showing, and makes the lines of display picture that is more level and smooth, display softer.
Further, in a preferred embodiment of the invention, in the array of sub-pixels of described display panels, the sub-pixel of every three rows and four columns forms a display unit.And every two laterally adjacent display units share two row sub-pixels, every two longitudinally adjacent display units share two row sub-pixels, thus make array of sub-pixels PPI in the row direction promote 1.5 times.In the array of sub-pixels that the five-element six shown in Fig. 2 arrange, comprise altogether six display units 61,62,63,64,65 and 66.As shown in Figure 2, between display unit 61 and 62 sub-pixel 21 of the 3rd row in this array of sub-pixels shared and the 4th row, is between display unit 63 and 64 and between display unit 65 and 66; The sub-pixel 21 of the second row in this array of sub-pixels shared and the third line is between display unit 61 and 63 and between display unit 62 and 64; The sub-pixel 21 of the third line in this array of sub-pixels shared and fourth line is between display unit 63 and 65 and between display unit 64 and 66.
In optional embodiment of the present invention, in the display unit that the sub-pixel of above-mentioned every three rows and four columns is formed, the luminance distribution coefficient being positioned at the sub-pixel 21 of middle two row is the twice of the luminance distribution coefficient of the two row sub-pixels 21 being positioned at both sides.Wherein, luminance distribution coefficient refers to that each sub-pixel is assigned to the weight of the brightness in each display unit of this sub-pixel shared.Refer to Fig. 4, the luminance distribution Relationship of Coefficients schematic diagram between the display unit sub-pixel that it illustrates the display panels that one embodiment of the present of invention provide.Be described for a display unit in Fig. 4.As shown in Figure 4, if the luminance distribution coefficient of the sub-pixel 21 of the first row of each display unit is respectively a, b, c from top to bottom, then the luminance distribution coefficient of the sub-pixel 21 of the 4th row is also from top to bottom a, b, c respectively, and the luminance distribution coefficient of secondary series and tertial sub-pixel 21 is respectively 2a, 2b, 2c from top to bottom.Wherein, luminance distribution coefficient a, b, c can be equal.The each sub-pixel 21 being positioned at the display unit (except being positioned at the display unit of LCD panel edges) in the middle of described display panels to need share by six display units, for the tertial sub-pixel of the third line in Fig. 2, according to the relation of the luminance distribution coefficient of above-mentioned each display unit, the luminance distribution coefficient of this sub-pixel in display unit 61 is 2c, luminance distribution coefficient in display unit 62 is c, luminance distribution coefficient in display unit 63 is 2b, luminance distribution coefficient in display unit 64 is b, luminance distribution coefficient in display unit 65 is 2a, luminance distribution coefficient in display unit 66 is a.If the high-high brightness of each sub-pixel 21 is x, then: each sub-pixel is distributed in the total brightness 3a+3b+3c=x in six display units, therefore, the relation that each sub-pixel is distributed between luminance distribution coefficient a, b, c in six display units and its high-high brightness x meets a+b+c=x/3.
The surface that first substrate 1 is relative with second substrate 2 is provided with the driving array that multiple sub-pixel driver element is formed.Wherein, sub-pixel driver element and sub-pixel 21 one_to_one corresponding, described driving array can control the first sub-pixel area 211 and the second sub-pixel area 212 respectively.
The schematic top plan view of the first substrate of display panels of the present invention is shown please also refer to Fig. 5 and Fig. 6, Fig. 5; Fig. 6 is the partial enlarged drawing of Fig. 5.
As shown in Figure 5, first substrate 1 can be the flexible base, board such as glass substrate or plastic base; The multiple sub-pixel driver elements 12 being arranged at many first grid polar curves 10 on first substrate 1, a plurality of data lines 11 and being limited by many first grid polar curves 10 and a plurality of data lines 11.The structure of this sub-pixel driver element 12 can be one-domain structure, and also can be two domain structures etc., the present invention limit this.
Wherein, sub-pixel driver element 12 comprises pixel electrode 120 and the first film transistor 121.Pixel electrode 120 is corresponding with the position of the first sub-pixel area 211.The grid of the first film transistor 121 is electrically connected with first grid polar curve 10, and source electrode is electrically connected with data line 11, and drain electrode is electrically connected with pixel electrode 120.
First substrate 1 also comprises many second gate lines 13, many supplementary electrodes 14 and multiple second thin film transistor (TFT) 15, for the second thin film transistor (TFT) 15, its grid is all electrically connected with corresponding second gate line 13, source electrode is electrically connected with corresponding data line 11, and drain electrode is electrically connected with corresponding supplementary electrode 14.
Wherein, supplementing electrode 14 is arranged between pixel electrode 120, corresponding with the position of black matrix 22 (can see Fig. 1), that is, on the direction perpendicular to first substrate 1, the projection on first substrate 1 of black matrix 22 covers the projection supplementing electrode 14, supplement the projection of electrode 14 and data line 11 to be projected to small part overlapping.Described overlapping at least partly to comprise part overlapping and completely overlapping, wherein, supplements electrode 14 and data line 11 when shifting to install, and the projection supplementing the projection of the subregion of electrode 14 and data line 11 is overlapping; Supplement the projection of the projection of electrode 14 and data line 11 whole overlapping time, supplement the width of electrode 14 on first grid polar curve 10 bearing of trend (line direction in corresponding above-mentioned Fig. 2) and be greater than or less than the width of data line 11 on first grid polar curve 10 bearing of trend, now, the projection of data line 11 covers the projection of supplementary electrode 14 completely, or, supplement the projection of the complete cover data line 11 of projection of electrode 14.
In the present embodiment, first grid polar curve 10 is electrically connected with first control circuit (not shown), this first control circuit inputs the first control signal to first grid polar curve 10, because the grid of first grid polar curve 10 with the first film transistor 121 is electrically connected, therefore, the high level of the first control signal or low level can control unlatching or the closedown of the first film transistor 121.When first control circuit control the first film transistor 121 is opened, the source electrode of the first film transistor 121 and drain electrode conducting, drive singal in the data line 11 be electrically connected with the first film transistor 121 source electrode transfers to pixel electrode 120, for pixel electrode 120 provides the voltage driving liquid crystal.
Second gate line 13 is electrically connected with second control circuit (not shown), this second control circuit inputs the second control signal to second gate line 13, because the grid of second gate line 13 with the second thin film transistor (TFT) 15 is electrically connected, therefore, second control circuit controls unlatching or the closedown of the second thin film transistor (TFT) by the second control signal.When second control circuit control the second thin film transistor (TFT) 15 open time, the source electrode of the second thin film transistor (TFT) 15 and drain electrode conducting, the drive singal in data line 11 transfers to supplementary electrode 14 by source electrode and drain electrode, for supplementary electrode 14 provides the voltage driving liquid crystal.
Optionally, can by the input timing of adjustment first control signal and the second control signal, provide control signal respectively to pixel electrode 120 and supplementary electrode 14, to control the upset of the liquid crystal of the first corresponding region, sub-pixel area 211 and the second corresponding region, sub-pixel area 212 respectively, and then the luminescence of the first sub-pixel area 211 and the second sub-pixel area 212 can be controlled.
Certainly, first substrate 1 also arranges public electrode 124, this public electrode 124 is corresponding with multiple sub-pixel driver element 12 to be arranged, for sub-pixel driver element 12 provides common electric voltage, and driven the upset of the liquid crystal between pixel electrode 120 and the first sub-pixel area 211 by the voltage difference between public electrode 124 and pixel electrode 120.Equally, the voltage difference between public electrode 124 and supplementary electrode 14 can drive the upset of the liquid crystal between supplementary electrode 14 and the second sub-pixel area 212, thus effectively make use of the liquid crystal between pixel electrode 120, effectively improves aperture opening ratio and penetrance.
In the present embodiment, because pixel electrode 120 and supplementary electrode 14 are driven respectively by different control circuits, therefore, the fluorescent lifetime of the first sub-pixel area 211 and the second sub-pixel area 212 can control respectively.The second sub-pixel area 212 is lighted when the decay of achromatization saturation degree or color saturation decay in tolerance interval in order to make described display panels, in optional embodiment of the present invention, described display panels also comprises detection module (not shown), and described detection module is for detecting the brightness of all first sub-pixel area 211 on whole described display panels.Drive supplementary electrode 14 to make the second sub-pixel area 212 luminous when reaching predetermined condition.The present invention also provides a kind of preferred driving method for this reason, can see Figure 10.
In order to save substrate space, can be arranged to J-shaped by the first film transistor 121 and the second thin film transistor (TFT) 15, meanwhile, first grid polar curve 10 and second gate line 13 can insulate and be arranged in parallel.Based on this, the grid of the first film transistor 121 and the grid of the second thin film transistor (TFT) 15 can be arranged on same layer, and the source electrode of the first film transistor 121 and drain electrode also can be arranged on same layer with the source electrode of the second thin film transistor (TFT) 15 with draining.
Optionally, the first film transistor 121 in the present embodiment is double gate thin-film transistor, and the second thin film transistor (TFT) 15 is single gate thin-film transistors.With reference to the enlarged drawing that figure 7, Fig. 7 is the first film transistor 121 and the second thin film transistor (TFT) 15.The drain electrode 1212 of the first film transistor 121 is electrically connected with pixel electrode 120, first grid 1210 and the second grid 1211 of the first film transistor 121 are electrically connected with first grid polar curve 10, optionally, first grid 1210 and second grid 1211 are respectively first grid polar curve 10 two parts overlapping with active layer 123; The source electrode of the first film transistor 121 and the source electrode of the second thin film transistor (TFT) 15 are same one source pole and source electrode 152, and this source electrode 152 is electrically connected with data line 11; The grid 150 of the second thin film transistor (TFT) 15 is electrically connected with second gate line 13, and optionally, grid 150 is second gate line 13 part overlapping with active layer 123, and the drain electrode 151 of the second thin film transistor (TFT) 15 is electrically connected with supplementary electrode 14.
With reference to figure 8, Fig. 8 is the cross-sectional view of Fig. 7 sub-pixel driver element along aa ' direction, first substrate 1 surface has cushion 1231 and is positioned at the active layer 123 on cushion 1231 successively, gate dielectric layer 1230, second grid 1211, gate insulation layer 1214, first insulation course 1215, public electrode 124, second insulation course 1216 and pixel electrode 120, wherein, pixel electrode 120 is electrically connected with drain electrode 1212 by the first via hole 1213, drain electrode 1212 is between the first insulation course 1215 and gate insulation layer 1214, and drain electrode 1212 runs through gate insulation layer 1214 and gate dielectric layer 1230 is electrically connected with active layer 123, first insulation course 1215 is for isolating public electrode 124 and drain electrode 1212, second insulation course 1216 is for isolating public electrode 124 and pixel electrode 120.
With reference to figure 9, Fig. 9 is the cross-sectional view of Fig. 7 sub-pixel driver element along bb ' direction, first substrate 1 surface has cushion 1231 and is positioned at the active layer 123 on cushion 1231 surface successively, gate dielectric layer 1230, first grid 1210 and grid 150, gate insulation layer 1214, first insulation course 1215, public electrode 124, second insulation course 1216 and supplementary electrode 14, wherein, supplement electrode 14 to be electrically connected with drain electrode 151 by the second via hole 140, drain electrode 151 is between the first insulation course 1215 and gate insulation layer 1214, and run through gate insulation layer 1214 and gate dielectric layer 1230 is electrically connected with active layer 123, in addition, between first insulation course 1215 and gate insulation layer 1214, also there is source electrode 152, this source electrode 152 is electrically connected with data line 11, optionally, source electrode 152 is data line 11 part overlapping with active layer 123, source electrode 152 runs through gate insulation layer 1214 and gate dielectric layer 1230 is electrically connected with active layer 123.
In the present embodiment, supplementary electrode 14 and pixel electrode 120 are positioned at same layer, certainly, the present invention is not limited to this, in other embodiments, supplement electrode 14 and can be positioned at different layers with pixel electrode 120, as long as the voltage difference of supplementing between electrode 14 and public electrode 124 can drive the upset of liquid crystal.
Particularly, supplementing electrode 14 can be single strip shaped electric poles, also can for having the strip shaped electric poles of double joint bifurcated, can also for having the single strip shaped electric poles of pierced pattern, and the present invention does not limit the concrete shape of pierced pattern.
In the present embodiment, in order to improve the penetrance of pixel electrode, pixel electrode 120 can be set to have the pixel electrode carving seam, with reference to figure 5 and Fig. 6, pixel electrode 120 comprises the first strip shaped electric poles 1201, second strip shaped electric poles 1202, Article 3 shape electrode 1203, the first quarter between the first strip shaped electric poles 1201 and the second strip shaped electric poles 1202 stitch 1204, the second quarter between the second strip shaped electric poles 1202 and Article 3 shape electrode 1203 stitches 1205.
It should be noted that, the structure of the driving array shown in above-mentioned Fig. 5 to Fig. 9 is a kind of mode realizing control first sub-pixel area and the difference luminescence of the second sub-pixel area in the present invention, but is not limited to this.In certain embodiments, some all can be achieved in conjunction with the arrangement of subpixels structure in the present embodiment to other driving arrays that the first sub-pixel area and the second sub-pixel area control respectively, do not repeat them here.
Additionally provide a kind of liquid crystal indicator in another embodiment of the present invention, this liquid crystal indicator comprises the display panels that above-described embodiment provides.
The display panels that the present embodiment provides and liquid crystal indicator, each sub-pixel comprises the first sub-pixel area and the second sub-pixel area, wherein, first sub-pixel area is colored sub-pixels district, and the second sub-pixel area is white sub-pixels district, by luminous increasing opening rate and the penetrance in white sub-pixels district, and by the arrangement of sub-pixel with play up, obtain high PPI display effect with lower actual PPI design, reduce high PPI display panel manufacturing process difficulty, cost-saving.In addition, the setting in white sub-pixels district also can increase the distance between adjacent colored sub-pixels district, improves contraposition colour cast.In addition, it is luminous that the driving array that the present invention is also formed by sub-pixel driver element controls the first sub-pixel area and the second sub-pixel area respectively, color saturation decay that is that occur is serious with the first sub-pixel area is simultaneously luminous to avoid the second sub-pixel area, promotes the brightness of display panels when ensureing color saturation.
Refer to Figure 10, it illustrates the process flow diagram of the driving method of display panels of the present invention.Specifically, the present invention also provides a kind of driving method of display panels.The driving method of described display panels comprises the steps:
Step S100: drive the first sub-pixel area of the sub-pixel drive unit drives sub-pixel in array luminous.In an embodiment of the present invention, the first sub-pixel area luminescence of all sub-pixels is driven to be after controlling the unlatching of the first film transistor by first control circuit, drive singal in data line transfers to pixel electrode, drives the mode of the voltage of liquid crystal to realize for pixel electrode provides.
Step S200: detection module detects the brightness of all first sub-pixel area on whole display panels.
Step S300: drive the second sub-pixel area of the sub-pixel drive unit drives sub-pixel in array luminous.Alternatively, when the brightness of brightness and all green sub-pixels district G of all red sub-pixel district R on display panels, all blue subpixels district B is equal, array is driven to drive the second sub-pixel area luminous.Alternatively, the driving voltage of the second sub-pixel area is identical with the driving voltage of the first sub-pixel area.
The driving method of above-mentioned display panels can make the brightness promoting display panels when the decay of display panels achromatization saturation degree.
Although the present invention with preferred embodiment disclose as above, but itself and be not used to limit the present invention.Those skilled in the art, without departing from the spirit and scope of the present invention, when doing various changes and amendment.Therefore, the scope that protection scope of the present invention ought define depending on claims is as the criterion.
Claims (21)
1. a display panels, is characterized in that, comprising:
The first substrate be oppositely arranged and second substrate;
The surface that described first substrate is relative with described second substrate is provided with the driving array that multiple sub-pixel driver element is formed;
The surface that described second substrate is relative with described first substrate is provided with the array of sub-pixels that multiple sub-pixel is formed, and comprises black matrix between each described sub-pixel, described sub-pixel and described sub-pixel driver element one_to_one corresponding, and each described sub-pixel comprises:
First sub-pixel area, described first sub-pixel area is colored sub-pixels district;
Second sub-pixel area, described second sub-pixel area is white sub-pixels district;
Described driving array controls described first sub-pixel area and described second sub-pixel area respectively:
Layer of liquid crystal molecule, is arranged between described first substrate and described second substrate.
2. display panels as claimed in claim 1, it is characterized in that, in each described sub-pixel, the ratio of the second sub-pixel area area occupied and described first sub-pixel area area occupied is less than or equal to 1/3.
3. display panels as claimed in claim 1, it is characterized in that, the shape of described sub-pixel is rectangle, and multiple described sub-pixel is matrix arrangement.
4. display panels as claimed in claim 3, it is characterized in that, described second sub-pixel area in each described sub-pixel is arranged at the both sides of described first sub-pixel area respectively.
5. display panels as claimed in claim 4, is characterized in that, in same sub-pixel, be positioned at the area equation of described second sub-pixel area of described first both sides, sub-pixel area.
6. display panels as claimed in claim 4, it is characterized in that, in same sub-pixel, the area being positioned at the second sub-pixel area of described first side, sub-pixel area is greater than the area of the second sub-pixel area of its opposite side.
7. display panels as claimed in claim 1, it is characterized in that, described first sub-pixel area is any one in red sub-pixel district, green sub-pixels district and blue subpixels district.
8. display panels as claimed in claim 7, it is characterized in that, described red sub-pixel district is provided with Red lightscreening plate, and described green sub-pixels district is provided with green color filter and described blue subpixels district is provided with blue color filter.
9. display panels as claimed in claim 7, it is characterized in that, in every a line of described array of sub-pixels, the first sub-pixel area of three sub-pixels of arbitrary neighborhood is the permutation and combination in red sub-pixel district, green sub-pixels district and blue subpixels district, and in every adjacent rows, the first sub-pixel area of same row two sub-pixels is different.
10. display panels as claimed in claim 9, it is characterized in that, in described array of sub-pixels often the first sub-pixel area of row sub-pixel respectively with red sub-pixel district, green sub-pixels district, blue subpixels district cycle arrangement, and the first sub-pixel area color of the sub-pixel of same row is identical in odd-numbered line, in even number line, the first sub-pixel area color of the sub-pixel of same row is identical.
11. display panels as claimed in claim 1, it is characterized in that, in described array of sub-pixels, the arrangement of subpixels of even number line offsets to one side in the row direction relative to the arrangement of subpixels of odd-numbered line.
12. display panels as claimed in claim 11, is characterized in that, the distance of described skew is less than or equal to 3/4 of the spacing distance of each sub-pixel on offset direction.
13. display panels as claimed in claim 9, it is characterized in that, in described array of sub-pixels, the sub-pixel of every three rows and four columns forms a display unit, and every two laterally adjacent display units share two row sub-pixels, every two longitudinally adjacent display units share two row sub-pixels.
14. display panels as claimed in claim 10, it is characterized in that, in described array of sub-pixels, the sub-pixel of every three rows and four columns forms a display unit, and every two laterally adjacent display units share two row sub-pixels, every two longitudinally adjacent display units share two row sub-pixels, wherein, in each display unit, the luminance distribution coefficient being positioned at the sub-pixel of middle two row is the twice of the luminance distribution coefficient of the two row sub-pixels being positioned at both sides.
15. display panels according to any one of claim 1 to 14, it is characterized in that, described driving array comprises:
The multiple sub-pixel driver elements being arranged at many first grid polar curves on described first substrate, a plurality of data lines and being limited by described first grid polar curve and data line; Described sub-pixel driver element comprises pixel electrode and the first film transistor; Described pixel electrode is corresponding with the position of described first sub-pixel area, and the grid of described the first film transistor is electrically connected with described first grid polar curve, and source electrode is electrically connected with described data line, and drain electrode is electrically connected with described pixel electrode;
Be arranged at many second gate lines on described first substrate, multiple supplementary electrode and multiple second thin film transistor (TFT); Described supplementary electrode is arranged between described pixel electrode, and corresponding with the position of described black matrix; The grid of the second thin film transistor (TFT) described in each is all electrically connected with corresponding described second gate line, and source electrode is electrically connected with corresponding described data line, and drain electrode is electrically connected with corresponding described supplementary electrode;
The first control circuit be electrically connected with described first grid polar curve, described first control circuit, by controlling unlatching or the closedown of described the first film transistor, controls the voltage of described pixel electrode;
The second control circuit be electrically connected with described second gate line, described second control circuit, by controlling unlatching or the closedown of described second thin film transistor (TFT), controls the voltage of described supplementary electrode.
16. display panels as claimed in claim 15, is characterized in that, described in described the first film transistor AND gate, the second thin film transistor (TFT) forms J-shaped; Described first grid polar curve and described second gate line insulate and be arranged in parallel.
17. display panels as claimed in claim 1, it is characterized in that, described display panels also comprises detection module, and described detection module detects the brightness of all first sub-pixel area on whole described display panels.
18. 1 kinds of liquid crystal indicators, is characterized in that, comprise the display panels according to any one of claim 1 to 17.
19. 1 kinds of driving methods, for display panels as claimed in claim 1, is characterized in that, comprise the steps:
Drive the first sub-pixel area of the sub-pixel drive unit drives sub-pixel in array luminous;
Detection module detects the brightness of all first sub-pixel area on whole described display panels;
Drive the second sub-pixel area of the sub-pixel drive unit drives sub-pixel in array luminous.
20. driving methods as claimed in claim 19, it is characterized in that, when the brightness in all red sub-pixel districts on described display panels is equal with the brightness in all green sub-pixels districts, all blue subpixels districts, drive sub-pixel drive unit drives second sub-pixel area in array luminous.
The driving method of 21. display panels as claimed in claim 19, is characterized in that, the driving voltage of described second sub-pixel area is identical with the driving voltage of described first sub-pixel area.
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