CN106707628A - Pixel structure and display panel - Google Patents
Pixel structure and display panel Download PDFInfo
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- CN106707628A CN106707628A CN201710206333.3A CN201710206333A CN106707628A CN 106707628 A CN106707628 A CN 106707628A CN 201710206333 A CN201710206333 A CN 201710206333A CN 106707628 A CN106707628 A CN 106707628A
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
- G02F1/133757—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different alignment orientations
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133776—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers having structures locally influencing the alignment, e.g. unevenness
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
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Abstract
The invention relates to a pixel structure and a display panel. The pixel structure is electrically connected to a scanning line and a data line. The pixel structure comprises a first trunk electrode, a second trunk electrode, a main pixel electrode and a secondary pixel electrode, wherein the second trunk electrode and the first trunk electrode intersect with each other vertically; the main pixel electrode is provided with a main electrode pattern; the secondary pixel electrode is provided with a plurality of secondary electrode patterns; the plurality of secondary electrode patterns comprise a first secondary electrode pattern, a second secondary electrode pattern, a third electrode pattern and a fourth secondary electrode pattern; the first secondary electrode pattern and the second secondary electrode pattern are distributed on two opposite sides of the main electrode pattern symmetrically by taking the first trunk electrode as the center; the third secondary electrode pattern and the four secondary electrode pattern are distributed on two opposite sides of the main electrode pattern symmetrically by taking the second trunk electrode as the center; the first trunk electrode and the second trunk electrode are positioned in a middle area of the pixel structure; the area of the secondary pixel electrode accounts for 18 to 58 percent of the area of the pixel structure.
Description
Technical field
The invention belongs to field of liquid crystal display, and in particular to a kind of dot structure and display panel.
Background technology
With the development of information-intensive society, people have obtained quick growth to the demand of display device.It is this in order to meet
Demand, with liquid crystal display device (LCD：Liquid Crystal Display), plasma display not device (PDP：Plasma
Display Panel), organic light-emitting display device (OLED：Organic Light Emitting Diode) it is the aobvious of representative
Showing device is obtained for and rapidly develops.In panel display apparatus, liquid crystal display device is because its weight is low, small volume, energy
The low advantage of consumption, is obtaining more and more widely using.
Liquid crystal display device includes twisted-nematic (Twisted Nematic, TN) pattern, Electronic Control birefringence
(Electrically Controlled Birefringence, ECB) pattern, vertical orientation (Vertical Alignment,
The plurality of display modes such as VA), wherein, vertical orientation (VA) pattern be it is a kind of have high-contrast, angle of visibility wide, need not friction match somebody with somebody
To the common display pattern of the advantages such as processing procedure.
For (VA patterns) liquid crystal display device of vertical alignment mode, it uses negative liquid crystal, is being not powered on shape
During state, negative liquid crystal molecule is arranged perpendicular to upper and lower base plate, it is possible to is obtained preferable black state, is realized contrast higher.
And in order to obtain preferable visual angle, the liquid crystal display device of current vertical alignment mode is this aobvious generally by the way of multidomain
The mode of showing is referred to as " Multi-Domain Vertical Alignment Mode " (MVA patterns).It is main by color film or
The surface of person's array base palte makes raised or slit to realize.When to pixel applied voltage, these raised or slits are led
Cause potential surface that distortion occurs, liquid crystal molecule is just orientated under the electric field action of this distortion to different directions, it is achieved thereby that many
Farmland (Multi-Domain), as shown in figure 1, the pixel cell in existing vertical alignment mode (VA patterns) liquid crystal display device
P is generally 4 farmlands (4-Domain) structure, and pixel cell P includes four regions of D1 to D4.
But because vertical alignment mode (VA patterns) is using the vertical liquid crystal for rotating, the diversity ratio of liquid crystal molecule birefringence
It is larger, cause colour cast (color shift) problem under big visual angle than more serious.Therefore, it is that VA mode liquid crystals show to reduce colour cast
The demand for development of showing device.Various solutions are proposed for this problem, in industry, for example：Coupled capacitor method (is also claimed
Be CC methods), double TFT drive method (also referred to as TT methods), charge share method (Charge Sharing) etc..The every kind of method of the above
There are respective advantage and disadvantage, but it has a common ground：All it is to be divided into an original sub-pixel (Sub- sub-pixels)
Two parts, wherein, a part is referred to as Main areas (primary area), and another part is referred to as Sub areas (secondary area), and usual Main areas are less than
Sub areas.This design is general to be all referred to as 8 farmlands (8-Domain) design.
The resolution more and more higher of current display device, in the display panel of General Analytical degree, for example：FHD,Full
High Definition, resolution 4K, the chi inch of display panel are more than or equal to 55 inch, can be a sub- picture in display panel
Element is divided into two regions of Main and Sub, adjustment Main areas and the voltage distribution of the driving circuits in Sub areas, allows Sub areas slightly
Evening lights and brightness is slightly lower, and side during the big visual angle of display panel is slowed down with the mode of operation of such 8 farmland (8-domain)
Whiten on side.However, gradually uprising with resolution, the area of sub-pixel is tapered into, to the 4K display surfaces below 8K or 55 inch
For sub-pixel in plate, the element such as cabling and TFT has accounted for most light extraction region, has not had on sub-pixel design
There is enough and to spare that sub-pixel is sub-partitioned into Main areas and Sub areas again.How 4 farmlands (4-domain) in high-res panel small to be allowed
Area sub-pixel can also possess will not side whiting good image quality, to the sub-pixel design in high-res panel very weigh
Will.
The content of the invention
The present invention provides a kind of new dot structure and display panel, to solve the vertical alignment mode (VA of high-res
Pattern) display panel in big visual angle edge whiting influence display quality problem.
An object of the present invention is to provide a kind of dot structure, is electrically connected to scan line and data wire, the pixel knot
Structure includes：First main electrode；Second main electrode, second main electrode intersects vertically with first main electrode；Main picture
Plain electrode, the main pixel electrode has main electrode pattern；And,
Sub-pixel electrode, the sub-pixel electrode has multiple sub-electrode patterns, and the plurality of sub-electrode pattern is included for the first time
Electrode pattern, second electrode pattern, third time electrode pattern and the 4th sub-electrode pattern, the first time electrode pattern with should
Second electrode pattern is symmetrically distributed in the opposite sides of the main electrode pattern centered on first main electrode, and this is for the third time
Electrode pattern is symmetrically distributed in the relative another of the main electrode pattern with the 4th sub-electrode figure centered on second main electrode
Both sides；Wherein, first main electrode is located at the zone line of the dot structure, the sub-pixel electrode with second main electrode
Area account for the dot structure area 18%-58%.
Alternatively, the main electrode pattern includes multiple first strip shaped electric poles and multiple first slits, first strip shaped electric poles
It is arranged alternately with first slit, first strip shaped electric poles have the first line width, first slit has the first slit width, should
First Line is wider than equal to first slit width.
Alternatively, the sub-electrode pattern includes multiple second strip shaped electric poles and multiple second slits, second strip shaped electric poles
It is arranged alternately with second slit, second strip shaped electric poles have the second line width, second slit has the second slit width, should
Second line width is less than second slit width.
Alternatively, first line width and first slit width and it is equal to second line width and second slit width
With.
Alternatively, first line width and first slit width and be the first spacing, first slit width account for this
The 25% to 50% of one spacing.
Alternatively, second line width and second slit width and be the second spacing, second slit width account for this
The 50% to 66% of two spacing.
Alternatively, fringe region of second slit width from the zone line of the dot structure towards the dot structure
Gradually increase.
Another object of the present invention is to provide a kind of display panel, including the first substrate and the second base being oppositely arranged
Plate, and the liquid crystal layer between the first substrate and the second substrate is sealed in, the display panel also includes：Pel array, should
Pel array is arranged on one of the first substrate and the second substrate, and the pel array faces the liquid crystal layer, should
Pel array includes multiple dot structures as described above.
Alternatively, the liquid crystal layer is the negative liquid crystal selected from stabilizing polymer.
Alternatively, also including second electrode, the second electrode be arranged at the first substrate and the second substrate wherein it
On another, and the second electrode faces the liquid crystal layer, and the second electrode forms vertical electric field with the plurality of dot structure.
Compared with prior art, the present invention is provided dot structure and its display panel, by controlling dot structure time picture
The area accounting of the relatively whole dot structure of plain electrode, and main electrode pattern and the sub-pixel electrode of main pixel electrode multiple
The slit width of sub-electrode pattern and the line width of strip shaped electric poles are different from each other, and dot structure is divided into multiple regions is controlled
System, additionally, by maintaining the first spacing in main electrode pattern equal with the second spacing in sub-electrode pattern, i.e., whole pixel
Structure has single spacing, is whitened with the different visual angles top edge for solving the problems, such as display panel, and then improve display quality.
Brief description of the drawings
Fig. 1 is the schematic diagram of the dot structure on 4 farmlands in the prior art.
Fig. 2 is the partial cutaway schematic of display panel of the invention.
Fig. 3 is the schematic diagram of the dot structure in one embodiment of the invention.
Fig. 4 A to Fig. 4 C are respectively the enlarged diagram in R1, R2 and R3 region in Fig. 3.
Fig. 5 is the schematic diagram of the dot structure in another embodiment of the present invention.
Fig. 6 A to Fig. 6 B are the enlarged diagram in R4 and R5 regions in Fig. 5.
Specific embodiment
Present disclosure is become apparent from and is understood to cause and more accurately, described in detail presently in connection with accompanying drawing, explanation
Book accompanying drawing shows the example of embodiments of the invention, wherein, identical label represents identical element.It is understood that saying
The ratio of ratio and the actual implementation of non-invention shown in bright book accompanying drawing, for the purpose of it is only schematically illustrate, and not according to former chi
Inch is mapped.
Fig. 2 is the partial cutaway schematic of display panel of the invention, and Fig. 3 is the dot structure in one embodiment of the invention
Schematic diagram.
As shown in Fig. 2 display panel 100 includes the first substrate 10 being oppositely arranged and second substrate 20, first electrode layer
11 are arranged on first substrate 10, and the second electrode lay 21 is arranged on second substrate 20, first electrode layer 11 and the second electrode lay
21 is relative；Liquid crystal layer 30 is arranged between first substrate 10 and second substrate 20；First both alignment layers 12 are covered in first electrode layer
On 11, the second both alignment layers 22 are covered on the second electrode lay 21；Wherein, can shape between first electrode layer 11 and the second electrode lay 21
Into vertical electric field, in the presence of vertical electric field, liquid crystal layer 30 can deflect, to cause that display panel 100 can carry out image
Display.In the present embodiment, first electrode layer 11 includes multiple slit patterns, and the second electrode lay 21 is covered in second substrate for whole face
The transparent ITO layer on 20 surfaces, first electrode layer 11 includes various electrodes, such as including in dot structure 200 (as shown in Figure 3)
Pixel electrode, but be not limited.The material of liquid crystal layer 30 is, for example, the negative liquid crystal selected from stabilizing polymer.
In general, display panel 100 includes pel array, pel array includes multiple dot structures 200 for repeating, as
On one of the settable first substrate 10 of pixel array and second substrate 20, and liquid crystal layer 30 is can be done directly on, this
In embodiment, pel array is for example arranged on first substrate 10, and now, first substrate 10 is, for example, array base palte.
As shown in figure 3, dot structure 200 includes the first main electrode 201, the second main electrode 202, main pixel electrode
210 and sub-pixel electrode 220, the first main electrode 201 is mutually perpendicular to the second main electrode 202, and positioned at dot structure 200
Zone line；Main pixel electrode 210 includes main electrode pattern；Sub-pixel electrode 220 includes multiple sub-electrode patterns, Duo Geci
Electrode pattern include first time electrode pattern 220a, second electrode pattern 220b, third time electrode pattern 220c and the 4th time
Electrode pattern 220d, centered on the first main electrode 201, first time electrode pattern 220a and second electrode pattern 220b pairs
Title is distributed in the opposite sides of main electrode pattern；Centered on the second main electrode 202, third time electrode pattern 220c and the 4th
Sub-electrode pattern 220d is symmetrically distributed in the opposite sides of main electrode pattern.Wherein, the area of sub-pixel electrode 220 accounts for pixel knot
The 18%-58% of the area of structure 200.In the present embodiment, first time electrode pattern 220a, second electrode pattern 220b, the 3rd
The region that sub-electrode pattern 220c and the 4th sub-electrode pattern 220d is indicated for the dashed pattern of Fig. 3 intermediate cam shapes, main pixel electricity
The main electrode pattern of pole 210 is filled in the region outside sub-pixel electrode 220 in dot structure 200.Main pixel electrode 210 with it is secondary
Pixel electrode 220 is electrically connected with each other by the first main electrode 201 and the second main electrode 202.Dot structure 200 is electrical
The signal input lines such as scan line and data wire are connected to, are driven with receiving electric signal.
In actual implementation, the ratio that the area of sub-pixel electrode 220 accounts for the area of dot structure 200 is bigger, often
It is more beneficial for improving the situation that display panel frontside edge whitens in the picture of side-looking angle (60 °) low gray scale states, but, it is secondary
The area accounting of pixel electrode 220 increases, the area of main pixel electrode 210 is necessarily reduced, and the area of main pixel electrode 210 subtracts
It is few so that display panel 100 is in the luminance-reduction in positive angle.Improve the side-looking angle top of display panel 100 to reach
Edge whitens, while the brightness for taking into account positive angle can not be reduced too much, when the area of sub-pixel electrode 220 accounts for dot structure 200
Entire area ratio be 18%-58% when, be capable of achieving improve the side-looking angle of display panel 100 edge whiting, while keeping away
Exempt from display panel 100 in the excessive problem of the overall brightness reduction of positive angle.
Fig. 4 A to Fig. 4 C are respectively the enlarged diagram in R1, R2 and R3 region in Fig. 3.
As shown in Fig. 3 and Fig. 4 A, main electrode pattern includes multiple first strip shaped electric poles 211 and multiple first slits 212,
It is arranged alternately between multiple first strip shaped electric poles 211 and multiple first slits 212, the first strip shaped electric poles 211 have the first line width
There is L1, the first slit 212 first slit width S1, the first line width L1 to be more than the first slit width S1, i.e. L1>S1, but not with
This is limited.In other embodiments of the invention, the first line width L1 is equal to the first slit width S1, i.e. L1=S1.
With continued reference to Fig. 4 A, also there is main electrode pattern the first spacing P1, the first spacing P1 to be equal to the first line width L1 and the
One slit width S1 plus and, i.e. P1=L1+S1；Or, the first spacing P1 is two adjacent the first strip shaped electric poles 211
The distance between center, between the center C1 to the center line C2 of the first adjacent strip shaped electric poles 211 of the first strip shaped electric poles 211 away from
From (as shown in dotted line in Fig. 4 A).
Multiple first strip shaped electric poles 211 of main electrode pattern are preferably from the first main electrode 201 and the second main electrode
With 45 ° clockwise, 135 ° and counterclockwise 45 °, 135 ° of direction extends that (angle direction is defined, with the first main electrode on 202
201 used as 0 ° of benchmark), multiple first slits 212 are quadrangle.In in specific implementation, can be set with the region of dot structure 200
The transparent conductive patterns in whole face, by exposure imaging processing procedure, in the region etching of the first slit 212 of correspondence in transparent conductive patterns
To form multiple first slits 212, but it is not limited.In other embodiment of the present invention, also can be by printing or applying
The mode of the transparency conducting layer of cloth forms multiple strip shaped electric poles 211, and that does not print or be coated between multiple strip shaped electric poles 211 is saturating
The white space of bright conductive layer is multiple first slits 212.
As shown in Fig. 3 and Fig. 4 B, multiple sub-electrode patterns include first time electrode pattern 220a, second electrode pattern
220b, third time electrode pattern 220c and the 4th sub-electrode pattern 220d, wherein, first time electrode pattern 220a to the 4th electricity
Pole figure case 220d has similar structure, in the present embodiment, is illustrated by taking the structure of first time electrode pattern 220a as an example.
First time electrode pattern 220a includes multiple second strip shaped electric poles 221 and multiple second slits 222, the second strip electricity
Pole 221 is arranged alternately with the second slit 222, and the second strip shaped electric poles 221 have the second line width L2, and the second slit 222 has second
Slit width S2, the second line width L2 are less than the second slit wide cut S2, i.e. L2<S2.
Also there is first time electrode pattern 220a the second spacing P2, the second spacing P2 to be equal to the second line width L2 and the second slit
Width S 2 plus and, i.e. P2=L2+S4；Or, the second spacing P2 be two adjacent centers of the second strip shaped electric poles 221 it
Between distance, the distance between the center C3 to the adjacent center line C4 of the second strip shaped electric poles 221 of the second strip shaped electric poles 221 is (such as
In Fig. 4 B shown in dotted line).
As shown in Fig. 2 multiple second strip branches 221 of first time electrode pattern 220a are from the second main electrode 202
On extended obliquely out with 135 ° of directions (angle direction is defined, using the first main electrode 201 as 0 ° of benchmark) along 45 ° counterclockwise,
That is, multiple second strip shaped electric poles 221 in first time electrode pattern 22a are symmetrically distributed in centered on the second main electrode 202
First side of main electrode pattern.In the present embodiment, the outward flange of multiple second strip branches 221 is (in the middle of dot structure 200
The edge in region) where first side preferably correspond to the zone line of the first edge of dot structure 200.
By that analogy, second multiple second strip shaped electric poles 221 of electrode pattern 220b is from edge in the second main electrode 202
45 ° clockwise extend obliquely out with 135 ° of directions, i.e. second multiple second strip shaped electric poles 221 of electrode pattern 220b is with second
The second side of main electrode pattern is symmetrically distributed in centered on main electrode 202, the second side is relative with the first side.Second sub-electrode figure
Where the outward flange (away from the edge of the zone line of dot structure 200) of multiple second strip branches 221 of case 220b second
Side preferably corresponds to the zone line of the second edge of dot structure 200, and second edge is relative with first edge, first side
It is relative with second side.
Multiple second strip shaped electric poles 221 of third time electrode pattern 220c are from the first main electrode 201 along 45 ° clockwise
Direction and 45 ° of directions counterclockwise extend obliquely out, i.e. multiple second strip shaped electric poles 221 of third time electrode pattern 220c are with first
The 3rd side of main electrode pattern is symmetrically distributed in centered on main electrode 201, the 3rd side is adjacent with the second side and the first side.4th
Multiple second strip shaped electric poles 221 of sub-electrode pattern 220d are from the first main electrode 201 along 135 ° of directions clockwise and inverse time
135 ° of directions of pin extend obliquely out, i.e. multiple second strip shaped electric poles 221 of the 4th sub-electrode pattern 220d are with the first main electrode
The 4th side of main electrode pattern is symmetrically distributed in centered on 201.Wherein, the first side corresponds to the phase of main electrode pattern with the second side
To both sides, the 3rd side and the 4th side correspond to the relative another both sides of main electrode pattern.
Multiple second slits 222 in sub-electrode pattern are, for example, quadrangle.Sub-electrode pattern can lead to main electrode pattern
Similar mode is crossed to be formed in identical processing procedure.
With continued reference to Fig. 2 and Fig. 4 C, the region where R3 is the juncture area of main electrode pattern and sub-electrode pattern, main electricity
The first spacing P1 in pole figure case is equal with the second spacing P2 in sub-electrode pattern, i.e. in control main electrode pattern first
Spacing P1 it is equal with the second spacing P2 of sub-electrode pattern so that whole dot structure 200 have unique spacing, meanwhile, main electricity
The first line width L1 in pole figure case is more than or equal to the first slit width S1, i.e. L1>Or in=S1, and sub-electrode pattern
The second line width L2 be less than the second slit width S2, i.e. L2<S2.With in the prior art, it is divided into by by a dot structure
Two parts (part is referred to as Main areas, and another part is referred to as Sub areas) form the mode of 8-domain dot structures, the present invention
Dot structure 200 by the line width of the strip shaped electric poles in adjustment main electrode pattern and sub-electrode pattern with slit width each other
Difference, and dot structure 200 is maintained with unique spacing so that 4-domain dot structures 200 can have similar 8-
The effect of domain, is whitened with eliminating edge of the display panel 100 at big visual angle.
Specifically, display panel 100 is, for example, 32 inch, and the area of sub-pixel electrode 220 accounts for the area of dot structure 200
58%, in main pixel electrode 210, the ratio of the first line width L1 and the first slit width S1 is 1, i.e. L1/S1=1 is (for example, L1
=3 μm, S1=3 μm), and in sub-pixel electrode 220, the ratio of the second line width L2 and the second slit width S2 is 1/2, i.e. L2/
S2=1/2 (for example, L2=2 μm, S2=4 μm), wherein, under low gray scale states, in 45 ° or 60 ° of side-looking visual angles, measure respectively
The optical appearance of display panel 100, specific detection delta local gamma (the side-looking effect quantizating index of display), D-
Value (D values) and TRDI (tonal distortion index, Tone Rendering Distortion Index).
After dot structure 200 is using upper described design, during 45 ° of visual angles of side-looking, delta local gamma (displays
The side-looking effect quantizating index of device) it is 0.92, more than factory calibration 0.7；During 60 ° of visual angles of side-looking, delta local gamma
(the side-looking effect quantizating index of display) is 1.39, also greater than factory calibration 0.7.
D-value (D values) and TRDI (tonal distortion index, Tone Rendering Distortion Index) conduct
Judge the numerical value faced with side-looking luminance difference of display panel 100, its numerical value is the smaller the better.When dot structure 200 is using upper
After described design, during 45 ° of visual angles of side-looking, D-value (D values) is 0.64；TRDI is 0.35.
Furthermore, in main pixel electrode 210, the first slit width S1 of main electrode pattern accounts for the first spacing P1's
25%-50%.The function of main pixel electrode 210 is to maintain the maximum brightness of dot structure 200, therefore, the first slit width
The ratio that S1 accounts for the first spacing P1 need to be more than 50%, additionally, the ratio that the first slit width S1 accounts for the first spacing P1 can not be too small,
When the accounting of the first slit width S1 is too small so that what the orientation of liquid crystal layer 30 can not be good is controlled by the first slit 212.Cause
This, the high brightness and the control stable alignment of liquid crystal layer 30 of dot structure 200 are maintained to meet simultaneously, in main electrode pattern, the
One slit width S1 accounts for the 25%-50% of the first spacing P1.
For sub-pixel electrode 220, the second slit width S2 accounts for the 50%-60% of the second spacing P2.Sub-pixel electricity
The function of pole 220 is that the region where controlling sub-pixel electrode 220 lights behind the region where main pixel electrode 210,
And then eliminate under big visual angle, the problem of display panel frontside edge whiting.In design sub-pixel electrode 220, in sub-electrode pattern
The second slit width S2 and the second line width L2 between ratio when, it is low if the second slit width S2 is more than the second line width L2
Driving voltage, liquid crystal layer 30 can be controlled it is slower topple over, therefore, be capable of achieving dot structure 200 in corresponding region in main picture
The corresponding region of plain electrode 210 lights after lighting.But, if the accounting that the second slit width S2 accounts for the second spacing P2 is excessive,
Cause sub-pixel electrode 220 to decline the orientation control ability of liquid crystal layer 30, easily produce abnormal.Therefore, in order to meet dimension simultaneously
Hold and lighted behind the corresponding region of sub-pixel electrode in dot structure 200 and control the stable alignment of liquid crystal layer 30, in sub-electrode pattern,
Second slit width S2 accounts for the 50%-60% of the second spacing P2.
Fig. 5 is the schematic diagram of the dot structure in another embodiment of the present invention, and Fig. 6 A to Fig. 6 B are R4 and R5 regions in Fig. 5
Enlarged diagram.Wherein, Fig. 5 has same or similar function with the element with identical label in Fig. 3, before refer to
State the explanation in embodiment.
As shown in Fig. 5 and Fig. 6 A, dot structure 300 is differed only in dot structure 200, dot structure 300 it is secondary
The structure of the sub-electrode pattern of pixel electrode 320 is different.
Specifically, sub-pixel electrode 320 has multiple sub-electrode patterns, and multiple sub-electrode patterns include：It is electric for the first time
Pole figure case 320a, second electrode pattern 320b, third time electrode pattern 320c and the 4th sub-electrode pattern 320d, wherein, the
The sub-electrode patterns of one-time electrode pattern 320a to the 4th 320d has similar structure, in the present embodiment, with the 4th sub-electrode figure
Illustrated as a example by the structure of case 320d.
4th sub-electrode pattern 320d has multiple second strip shaped electric poles 321 and multiple second slits 322, multiple Article 2
Shape electrode 321 has the second different line widths, and multiple second strip shaped electric poles 321 multiple second line widths from dot structure 300
Zone line be sequentially reduced towards fringe region, multiple second slit widths of multiple second slits 322 are from dot structure 300
Zone line increase successively towards fringe region.
Fig. 6 A are the enlarged diagram of the structure of the sub-electrode pattern 320d of part the 4th, as illustrated, with from the second trunk
Four the second strip shaped electric poles 321 extended obliquely out with 135 ° of directions counterclockwise in electrode 202 (as shown in Figure 5), four second narrow
Seam 322 is correspondingly arranged in four the second strip shaped electric poles 321 between any two respectively；Four the second lines of the second strip shaped electric poles 321
Width is respectively L21, L22, L23 and L24, L21>L22>L23>L24；Second slit width of four the second slits 322 is respectively
S21, S22, S23 and S24, S21<S22<S23<S24；Wherein, L21+S21=L22+S22=L23+S23=L24+S24=
P2 ', P2 ' it is the second spacing of sub-electrode pattern, the second spacing is also the spacing of dot structure 300.In the present embodiment, sub-electrode
Multiple second slits 322 can also be regarded as, secondary electricity from the zone line of dot structure 300 towards the gradual change of fringe region in pattern
The second slit width accounts for the ratio of the spacing of whole dot structure 300 and increases successively in pole figure case, i.e. S21/P2 '<S22/P2’<
S23/P2’<S24/P2’。
Due to multiple second slit widths (S21-S24) in multiple sub-electrode patterns (320a-320d) of sub-pixel electrode
The ratio for accounting for the spacing of whole dot structure 300 increases successively, the application of pixel cell 300 to display panel 100 (as shown in Figure 2)
When, may be such that orientation of the liquid crystal layer 30 in main pixel electrode 210 and the corresponding region of sub-pixel electrode 320 is more smooth, no
Easily cause liquid crystal layer 30 that larger torsion occurs and cause the abnormal problem of orientation.
Specifically, specifically, display panel 100 is, for example, 32 inch, and the area of sub-pixel electrode 320 accounts for dot structure
The 50% of 300 area, in main pixel electrode 210 (as shown in Figure 6B), the ratio of the first slit width S1 and the first spacing P1
For, S1/P1=2.5/6 (for example, S1=2.5 μm, P1=6 μm), and in sub-pixel electrode 320, multiple second slit widths
Ratios of the S21-S24 respectively with the second spacing P2 ' be, S21/P2 '=2.5/6 (for example, S21=2.5 μm, P2 '=6 μm),
S22/P2 '=3/6 (for example, S22=3 μm, P2 '=6 μm), S23/P2 '=3.5/6 is (for example, S23=3.5 μm, P2 '=6 μ
M), S24/P2 '=4/6 (for example, S24=4 μm, P2 '=6 μm), wherein, under low gray scale states, in 45 ° of side-looking visual angles, difference
The optical appearance of display panel 100 is measured, (the side-looking effect of display quantifies to refer to specific detection delta local gamma
Mark), D-value (D values) and TRDI (tonal distortion index, Tone Rendering Distortion Index).
Wherein, during 45 ° of visual angles of side-looking, measuring delta local gamma (the side-looking effect quantizating index of display) is
0.81, more than factory calibration 0.7；D-value (D values) is 0.64；TRDI is 0.35.
To sum up, the present invention is provided dot structure and its display panel, by controlling dot structure sub-pixel electrode relative
The main electrode pattern of the entirely area accounting of dot structure, and main pixel electrode and multiple sub-electrode patterns of sub-pixel electrode
Slit width and strip shaped electric poles line width it is different from each other, dot structure is divided into multiple regions and is controlled, additionally, passing through
The first spacing in maintenance main electrode pattern is equal with the second spacing in sub-electrode pattern, i.e., whole dot structure has single
Spacing, with solve the problems, such as display panel different visual angles top edge whiten, and then improve display quality.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Knowing those skilled in the art can make various corresponding changes and deformation, but these corresponding changes and deformation according to the present invention
The protection domain of appended claims of the invention should all be belonged to.
Claims (10)
1. a kind of dot structure, is electrically connected to scan line and data wire, it is characterised in that the dot structure includes：
First main electrode；
Second main electrode, second main electrode intersects vertically with first main electrode；
Main pixel electrode, the main pixel electrode has main electrode pattern；And,
Sub-pixel electrode, the sub-pixel electrode has multiple sub-electrode patterns, and the plurality of sub-electrode pattern includes the first sub-electrode
Pattern, second electrode pattern, third time electrode pattern and the 4th sub-electrode pattern, the first time electrode pattern with this second
Sub-electrode pattern is symmetrically distributed in the opposite sides of the main electrode pattern centered on first main electrode, the third time electrode
Pattern is symmetrically distributed in the relative another both sides of the main electrode pattern with the 4th sub-electrode figure centered on second main electrode；
Wherein, first main electrode is located at the zone line of the dot structure, the sub-pixel electrode with second main electrode
Area account for the dot structure area 18%-58%.
2. dot structure as claimed in claim 1, it is characterised in that the main electrode pattern include multiple first strip shaped electric poles and
Multiple first slits, first strip shaped electric poles are arranged alternately with first slit, and first strip shaped electric poles have the first line width, should
First slit has the first slit width, and the First Line is wider than equal to first slit width.
3. dot structure as claimed in claim 2, it is characterised in that the sub-electrode pattern include multiple second strip shaped electric poles and
Multiple second slits, second strip shaped electric poles are arranged alternately with second slit, and second strip shaped electric poles have the second line width, should
Second slit has the second slit width, and second line width is less than second slit width.
4. dot structure as claimed in claim 3, it is characterised in that first line width and first slit width and be equal to
Second line width and second slit width and.
5. dot structure as claimed in claim 4, it is characterised in that first line width and first slit width and be the
One spacing, first slit width accounts for the 25% to 50% of first spacing.
6. dot structure as claimed in claim 4, it is characterised in that second line width and second slit width and be the
Two spacing, second slit width accounts for the 50% to 66% of second spacing.
7. dot structure as claimed in claim 4, it is characterised in that second slit width is from the middle of this of the dot structure
Region gradually increases towards the fringe region of the dot structure.
8. a kind of display panel, including the first substrate and second substrate being oppositely arranged, and be sealed in the first substrate and be somebody's turn to do
Liquid crystal layer between second substrate, it is characterised in that the display panel also includes：
Pel array, the pel array is arranged on one of the first substrate and the second substrate, and the pel array
In face of the liquid crystal layer, the pel array includes multiple dot structures as described in any one in claim 1-6.
9. display panel as claimed in claim 8, it is characterised in that the liquid crystal layer is the negativity liquid selected from stabilizing polymer
It is brilliant.
10. display panel as claimed in claim 8, it is characterised in that also including second electrode, the second electrode is arranged at this
First substrate and the second substrate it is wherein another on, and the second electrode faces the liquid crystal layer, and the second electrode is more with this
Individual dot structure forms vertical electric field.
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| CN201710206333.3A CN106707628A (en) | 2017-03-31 | 2017-03-31 | Pixel structure and display panel |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037645A (en) * | 2017-06-19 | 2017-08-11 | 深圳市华星光电技术有限公司 | Main pixel electrode, pixel cell and liquid crystal display panel |
| CN108051963A (en) * | 2018-02-01 | 2018-05-18 | 惠科股份有限公司 | A kind of dot structure, display panel and display device |
| CN108983511A (en) * | 2018-08-08 | 2018-12-11 | 深圳市华星光电技术有限公司 | Dot structure and display panel |
| CN109917592A (en) * | 2019-03-11 | 2019-06-21 | 深圳市华星光电技术有限公司 | Pixel electrode and liquid crystal display panel |
| CN111258130A (en) * | 2020-03-16 | 2020-06-09 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel |
| CN111722442A (en) * | 2019-03-22 | 2020-09-29 | 咸阳彩虹光电科技有限公司 | Pixel structure, pixel unit and display panel |
| WO2021212563A1 (en) * | 2020-04-24 | 2021-10-28 | 深圳市华星光电半导体显示技术有限公司 | Pixel unit and liquid crystal display device |
| CN114660865A (en) * | 2022-03-24 | 2022-06-24 | Tcl华星光电技术有限公司 | Array substrate and display device |
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2017
- 2017-03-31 CN CN201710206333.3A patent/CN106707628A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037645A (en) * | 2017-06-19 | 2017-08-11 | 深圳市华星光电技术有限公司 | Main pixel electrode, pixel cell and liquid crystal display panel |
| CN108051963A (en) * | 2018-02-01 | 2018-05-18 | 惠科股份有限公司 | A kind of dot structure, display panel and display device |
| CN108051963B (en) * | 2018-02-01 | 2023-11-03 | 惠科股份有限公司 | Pixel structure, display panel and display device |
| CN108983511A (en) * | 2018-08-08 | 2018-12-11 | 深圳市华星光电技术有限公司 | Dot structure and display panel |
| CN108983511B (en) * | 2018-08-08 | 2021-07-27 | Tcl华星光电技术有限公司 | Pixel structure and display panel |
| CN109917592A (en) * | 2019-03-11 | 2019-06-21 | 深圳市华星光电技术有限公司 | Pixel electrode and liquid crystal display panel |
| CN111722442A (en) * | 2019-03-22 | 2020-09-29 | 咸阳彩虹光电科技有限公司 | Pixel structure, pixel unit and display panel |
| CN111722442B (en) * | 2019-03-22 | 2022-11-22 | 咸阳彩虹光电科技有限公司 | Pixel structure, pixel unit and display panel |
| CN111258130A (en) * | 2020-03-16 | 2020-06-09 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel |
| WO2021212563A1 (en) * | 2020-04-24 | 2021-10-28 | 深圳市华星光电半导体显示技术有限公司 | Pixel unit and liquid crystal display device |
| US11822189B2 (en) | 2020-04-24 | 2023-11-21 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Pixel unit and liquid crystal display device |
| CN114660865A (en) * | 2022-03-24 | 2022-06-24 | Tcl华星光电技术有限公司 | Array substrate and display device |
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