CN107479245A - Display panel, manufacturing method thereof and display device - Google Patents
Display panel, manufacturing method thereof and display device Download PDFInfo
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- CN107479245A CN107479245A CN201710752623.8A CN201710752623A CN107479245A CN 107479245 A CN107479245 A CN 107479245A CN 201710752623 A CN201710752623 A CN 201710752623A CN 107479245 A CN107479245 A CN 107479245A
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- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 239000011159 matrix material Substances 0.000 claims abstract description 55
- 239000004973 liquid crystal related substance Substances 0.000 claims description 36
- 238000002360 preparation method Methods 0.000 claims description 15
- 230000005684 electric field Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 21
- 238000005516 engineering process Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Classifications
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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
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display panel, a manufacturing method thereof and a display device. The display panel includes: a black matrix dividing a display region of the display panel into a plurality of sub-pixels; within each sub-pixel, the electrode has a slit having an end; the black matrix has a projection extending toward the opening area of the sub-pixel, and the projection has a portion overlapping with an end of the slit in an orthogonal projection of a plane where the electrode is located. The display panel, the manufacturing method thereof and the display device provided by the invention improve the display contrast.
Description
Technical field
The present invention relates to display technology field, is filled more particularly, to a kind of display panel and preparation method thereof and display
Put.
Background technology
In display panel technology, influence of the contrast to visual effect is very crucial, is evaluate properties of product one
Important indicator.It is exactly that saturation degree of the white signal in 100% and 0% is subtracted each other accurately to say contrast, then divided by with Lux (light
Illumination, i.e. lux, every square metre of lumen value) it is that (0% white signal is actually for 0% white value under measurement unit
It is black), resulting numerical value.Briefly contrast be exactly in darkroom, brightness under white picture (when most bright) divided by
Brightness under black picture (when most dark).High-contrast shows for definition, the details of image, gray-level performance has very
It is big to help.Contrast is higher, and image is more clear eye-catching, and color is also more distinct gorgeous；The big of ultimate attainment Consumer's Experience is being pursued at present
Under environment, high-contrast also turns into a big attraction of display product.
Therefore it provides a kind of display panel and preparation method thereof and display device, it is that this area urgently solves to improve contrast
Certainly the problem of.
The content of the invention
In view of this, the invention provides a kind of display panel and preparation method thereof and display device, solves raising pair
Than the technical problem of degree.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of display panel,
Including black matrix and electrode,
The viewing area of display panel is divided into multiple sub-pixels by black matrix；
In each sub-pixel, electrode has slit, and slit has end；
Black matrix has a projection extended to the open region of sub-pixel, the orthographic projection of the raised plane where electrode have with
The overlapping part in the end of slit.
Further, in order to solve the above-mentioned technical problem, the present invention also provides a kind of preparation method of display panel, shows
Panel includes：Black matrix, electrode and layer of liquid crystal molecule,
The viewing area of display panel is divided into multiple sub-pixels by black matrix, and black matrix has prolongs to the open region of sub-pixel
The projection stretched,
In sub-pixel, electrode includes slit, and after applying voltage to electrode, electrode forms the electricity of control liquid crystal molecule deflection
；
Preparation method includes：
Target area is determined according to simulated test, wherein, target area is after applying voltage to electrode, narrow in sub-pixel
The region of the disorderly arrangement of the liquid crystal molecule of the end of seam；
Raised shape is determined according to target area, the orthographic projection coverage goal region of the raised plane where electrode is in electricity
The orthographic projection of plane where pole；
Black matrix is made according to the raised shape of determination.
Further, in order to solve the above-mentioned technical problem, the present invention also provides a kind of display device, including above-mentioned any one
Kind display panel.
Compared with prior art, display panel of the invention and preparation method thereof and display device, realizing following has
Beneficial effect：
The black matrix of display panel has the projection extended to sub-pixel open region, the positive throwing of the raised plane where electrode
Shadow has the part overlapping with the end of slit, then display panel is under black picture, the liquid of the electrode narrow slit end in sub-pixel
Brilliant molecule disorder layout area part is covered or all covered by black matrix by black matrix, can reduce the region and produce light leak
Risk, reduce black state brightness, and under white picture, liquid crystal molecule disorder layout area light transmittance is contributed in itself it is small,
Luminous efficiency is low, by black matrix cover rear dialogue state brightness influence it is smaller, equivalent to the constant and black state luminance-reduction of white state brightness,
Improve the contrast of display panel.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is display panel local overlooking schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the orthographic projection schematic diagram of the raised plane where electrode；
Fig. 3 is that display panel protrusions provided in an embodiment of the present invention and a kind of optional embodiment of slit corresponding relation are shown
It is intended to；
Fig. 4 is display panel protrusions provided in an embodiment of the present invention and slit corresponding relation another kind optional embodiment
Schematic diagram；
Fig. 5 is a kind of optional embodiment schematic diagram of electrode narrow slit provided in an embodiment of the present invention；
Fig. 6 is a kind of optional embodiment schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 7 is electrode narrow slit another kind optional embodiment schematic diagram provided in an embodiment of the present invention；
Fig. 8 is another optional embodiment schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 9 is electrode narrow slit another kind optional embodiment schematic diagram provided in an embodiment of the present invention；
Figure 10 is another optional embodiment schematic diagram of display panel provided in an embodiment of the present invention；
Figure 11 is another optional embodiment schematic diagram of display panel provided in an embodiment of the present invention；
Figure 12 is the preparation method schematic flow sheet of display panel provided in an embodiment of the present invention；
Figure 13 is the schematic top plan view of display device provided in an embodiment of the present invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless have in addition
Body illustrates that the unlimited system of part and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below
And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The present invention relates to a kind of display panel, display panel includes：Array base palte, color membrane substrates and it is arranged at array base palte
Liquid crystal layer between color membrane substrates.The viewing area of display panel includes multiple sub-pixels, wherein, array base palte includes pixel
The thin film transistor (TFT) of electrode, public electrode and control sub-pixel switch, color membrane substrates include black matrix and color blocking layer.In pixel electricity
The electric field of control liquid crystal molecule deflection can be formed between pole and public electrode, light is irradiated to liquid crystal point after passing through array base palte
Sublayer, after the deflecting action of liquid crystal molecule, color membrane substrates are emitted to, then by three kinds of red, green, blue on color membrane substrates
After the color blocking of color, it can be emitted in panel surface with the light of three kinds of colors of red, green, blue, finally in panel surface
Form pattern displaying.
In related display panel technology, after thin film transistor (TFT) control sub-pixel is opened, the electrode narrow slit in sub-pixel
Both ends the region of the disorderly arrangement of liquid crystal molecule be present, due to liquid crystal molecule arrange it is disorderly, then the region can not normal printing opacity,
Under white picture, zone of turbulence contributes very little to penetrance, and under black picture, zone of turbulence meeting light leak causes dark-state brightness liter
Height, influence to display contrast.
In the present invention, design black matrix has the projection extended to the open region of sub-pixel, by projection, covers sub-pixel
Interior partial liquid crystal molecule disorder layout area, to reduce brightness of the display panel under black picture, and then lift display comparison
Degree.
The present invention provides a kind of display panel, including black matrix and electrode, wherein, black matrix can be arranged at color film base
Plate, the sub-pixel for limiting different colours avoid light leak between sub-pixel；Electrode is arranged at array base palte, and liquid is controlled for being formed
The electric field of brilliant molecule deflection.Fig. 1 is display panel local overlooking schematic diagram provided in an embodiment of the present invention, as shown in figure 1, black square
The viewing area of display panel is divided into multiple sub-pixel sp by battle array BM；In each sub-pixel sp, electrode 102 has slit 101,
Slit has end D；Black matrix BM has the raised T extended to sub-pixel sp open region, raised T planes where electrode
Orthographic projection has the part overlapping with the end D of slit.
Only the position of projection is represented so that electrode has a slit as an example, it is necessary to illustrate in Fig. 1, in the present invention,
Electrode can have two slits or a multiple slits, and the shape of the strip of the electrode narrow slit in Fig. 1 is also only exemplary table
Show, not as the restriction to electrode narrow slit.The raised end position relation of the orthographic projection of plane and slit where electrode includes
A variety of situations, can it is overlapping with the end sections of slit or all covering slit end, Fig. 2 for projection where electrode put down
The orthographic projection schematic diagram in face.Protrusions of the present invention shape of the orthographic projection of plane where electrode is also not necessarily limited to what is shown in Fig. 2
Rectangle, semicircle and triangle, raised shape can also be trapezoidal or irregular shape.
Display panel provided by the invention, black matrix have the projection extended to sub-pixel open region, and projection is in electrode institute
There is the part overlapping with the end of slit in the orthographic projection of plane, then display panel is under black picture, the electrode in sub-pixel
The liquid crystal molecule disorder layout area part of slit end is covered or all covered by black matrix by black matrix, can reduce this
Region produces the risk of light leak, reduces black state brightness, and under white picture, liquid crystal molecule disorder layout area is worn to light in itself
Saturating rate contribution is small, and luminous efficiency is low, by black matrix cover rear dialogue state brightness influence it is smaller, it is constant and black equivalent to white state brightness
State luminance-reduction, improve the contrast of display panel.
Optionally, electrode is pixel electrode and/or public electrode in the present invention, i.e., pixel electrode could be arranged to have narrow
The electrode structure of seam, either public electrode for the electrode structure with slit or pixel electrode and public electrode be all with
The electrode structure of slit, for any electrode with slit, the projection extended to sub-pixel opening direction is set in black matrix,
The low region of luminous efficiency for covering slit both ends in sub-pixel is to improve the scheme of the contrast of display panel, at this
Within the scope of patent protection.
Further, in some optional embodiments, slit includes first end, the second end and positioned at first end
Main part between portion and the second end, main part, first end and the second end are interconnected；It is raised that projection includes first
And/or second is raised, the first raised orthographic projection of plane where electrode has the part overlapping with first end, the second projection
The orthographic projection of plane has the part overlapping with the second end where electrode.
Specifically, so that electrode narrow slit is strip slit as an example, Fig. 3 is display panel convexity provided in an embodiment of the present invention
Rise and a kind of optional embodiment schematic diagram of slit corresponding relation, as shown in figure 3, slit include first end D1, the second end
D2 and main part Z, black matrix BM have the first raised T1 and the second raised T2, and the first raised T1 is in the place plane of electrode 102
Orthographic projection has a part overlapping with first end D1, and the second raised T2 has and the in the orthographic projection of the place plane of electrode 102
Part overlapping two end D2.
In the embodiment, black matrix BM can only have the first raised T1 or the second raised T2, or same as shown in Figure 3
When there is the first raised T1 and the second raised T2, the end of the raised slit blocked can be set according to demand in practice, at certain
In a little electrode structures, an end of slit has been positioned at black matrix region in itself, blocks without setting, at this moment only needs
Set a projection to block another end of slit, reduce the black state brightness of display panel to realize, improve contrast.
Further, in some optional embodiments, Fig. 4 is display panel protrusions provided in an embodiment of the present invention
With slit corresponding relation another kind optional embodiment schematic diagram, led as shown in figure 4, first end D1 is relative with the second end D2
Body portion Z respectively constitutes turning；First raised T1 bearing of trend identical with first end D1 bearing of trend is direction a, the
Two raised T2 bearing of trend identical with the second end D2 bearing of trend is direction b.
Optionally, as shown in figure 4, the straight line where first end D1 and main part Z two intersection points is first straight line X1,
Straight line where the second end D2 and main part Z two intersection points is second straight line X2；On first straight line X1 bearing of trend,
First raised T1 width d1 is more than or equal to first end D1 width d2, the orthographic projection of first raised T1 planes where electrode
Cover first end D1；On second straight line X2 bearing of trend, the second raised T2 width d3 is more than or equal to the second end D2
Width d4, the orthographic projection covering the second end D2 of second raised T2 planes where electrode.
The display panel that the embodiment provides, the first raised T1 width d1 are more than or equal to first end D1 width
D2, the second raised T2 width d3 are more than or equal to the second end D2 width d4, and the projection set in black matrix is in electrode
The projection of place plane can cover the both ends of slit, and the liquid crystal molecule zone of turbulence at slit both ends is blocked, and reduce
Black state brightness, improve the contrast of display panel, and in the embodiment, the projection of setting to slit end near
Normally transmission region blocks less, the penetrance of display panel is influenceed smaller.
Optionally, as shown in figure 4, the first raised T1 edge has and first straight line in the projection of the plane where electrode
Part overlapping X1, the second raised T2 edge have the portion overlapping with second straight line X2 in the projection of the plane where electrode
Point.
The display panel that the embodiment provides, liquid crystal molecule disorder layout area is generally within the first end for forming turning
In portion and the second end, and the first projection and the second projection can cover first end and the second end respectively, reduce black state
Brightness, what is improved the contrast of display panel and set is raised small to aperture opening ratio loss.
Further, in some optional embodiments, black matrix includes multiple first extended in a first direction
Multiple second for blocking bar and extending in a second direction block bar, and bearing of trend and the second direction of main part form angle,
Angle is more than 45 ° and less than or equal to 90 °, the plate of the bearing of trend of first direction, second direction and main part with display panel
Face is parallel；Projection is arranged at second and blocks bar.
It is electricity provided in an embodiment of the present invention with reference to figure 5 and Fig. 6, Fig. 5 specifically, in a kind of optional embodiment
A kind of optional embodiment schematic diagram of pole slit, Fig. 6 are a kind of optional embodiment of display panel provided in an embodiment of the present invention
Schematic diagram.
As shown in figure 5, the main part Z of slit bearing of trend e and second direction D-shaped be into angle theta, angle theta be more than 45 ° and
Less than or equal to 90 °.
As shown in fig. 6, black matrix include on c extending in a first direction multiple first block bar BM1 and in second direction d
Multiple the second of upper extension block bar BM2, and raised T is arranged at second and blocks bar BM2, the main part of each slit 101 of electrode
Bearing of trend it is identical.In Fig. 6 only so that electrode includes two slits as an example, slit can be designed according to design requirement in practice
Quantity.The display panel that the embodiment provides, the region that luminous efficiency is low in sub-pixel can be sheltered from, improve contrast
Degree.
It is provided in an embodiment of the present invention with reference to figure 7 and Fig. 8, Fig. 7 specifically, in another optional embodiment
Electrode narrow slit another kind optional embodiment schematic diagram, Fig. 8 are the another optional of display panel provided in an embodiment of the present invention
Embodiment schematic diagram.
As shown in fig. 7, the main part of electrode narrow slit includes the first branch Z1 for being connected with first end D1 and with second
The second branch Z2 that end D2 is connected；Second branch Z2 and the first branch Z1 are symmetrical on first axle Q1, and first axle Q1 is position
Extend between the first branch Z1 and the second branch Z2 and in second direction d, the first branch Z1 bearing of trend e and second direction
D-shaped is into angle theta, and with second direction D-shaped into angle theta, angle theta is more than 45 ° and less than 90 ° the second branch Z2 bearing of trend e '.
As shown in figure 8, black matrix include on c extending in a first direction multiple first block bar BM1 and in second direction d
Multiple the second of upper extension block bar BM2, and raised T is arranged at second and blocks bar BM2.Three slits are only included with electrode in Fig. 8
Exemplified by, the quantity of slit according to design requirement, can be designed in practice.The display panel that the embodiment provides, can be blocked
The firmly low region of luminous efficiency in sub-pixel, contrast is improved, while the display panel that the embodiment provides can form double farmlands
Electrode structure, improve the visual angle of liquid crystal display panel, strengthen display effect.
It is provided in an embodiment of the present invention with reference to figure 9 and Figure 10, Fig. 9 specifically, in another optional embodiment
Electrode narrow slit another kind optional embodiment schematic diagram, Figure 10 are the another optional of display panel provided in an embodiment of the present invention
Embodiment schematic diagram.
As shown in figure 9, slit includes the first slit 101A and the second slit 101B；Second slit 101B and the first slit
101A is symmetrical on the second axle Q2, and the second axle Q2 is between the first slit 101A and the second slit 101B and in a first direction
C extends.First slit 101A main part Z bearing of trend e and second direction D-shaped are into angle theta, the second slit 101B main body
With second direction D-shaped into angle theta, angle theta is more than 45 ° and less than 90 ° portion Z ' bearing of trend e '.
As shown in Figure 10, what black matrix included on c extending in a first direction multiple first blocks bar BM1 and in second direction
Multiple second extended on d block bar BM2, and raised T is arranged at second and blocks bar BM2.It is only narrow including two with electrode in Figure 10
Exemplified by seam, the quantity of slit according to design requirement, can be designed in practice.The display panel that the embodiment provides, can hide
Block the low region of luminous efficiency in sub-pixel, improve contrast, at the same the display panel that provides of the embodiment can be formed it is double
The electrode structure on farmland, improve the visual angle of liquid crystal display panel, strengthen display effect.
Further, in some optional embodiments, Figure 11 is the another of display panel provided in an embodiment of the present invention
A kind of optional embodiment schematic diagram, as shown in figure 11, in a first direction on c, second, which blocks article BM2, has the be oppositely arranged
One edge B1 and second edge B2；The multiple first raised T1, second edge B2 are provided with first edge B1 spaced a predetermined distance
On be provided with the multiple second raised T2 spaced a predetermined distance, wherein, preset distance is electrode two neighboring slit on second direction d
The distance between.In the embodiment, black matrix includes multiple projections, can be designed black according to the spacing distance of electrode narrow slit
The raised set location and spacing distance of matrix, the projection in black matrix can cover slit both ends in display panel sub-pixel
The low region of luminous efficiency, improve the contrast of display panel.
Further, in some optional embodiments, display panel, in addition to layer of liquid crystal molecule, apply to electrode
After voltage, in sub-pixel, there is the region of the disorderly arrangement of liquid crystal molecule, the raised positive throwing in layer of liquid crystal molecule in the end of slit
The region of the disorderly arrangement of shadow covering liquid crystal molecule.In the embodiment, projection can cover the liquid crystal point of the end of slit completely
The region of sub disorderly arrangement, the low region of luminous efficiency is not present in slit both ends, and the same of contrast is improved in the embodiment
When to aperture opening ratio loss reduction.
Further, the present invention also provides a kind of preparation method of display panel,
Display panel includes：The viewing area of display panel is divided into more by black matrix, electrode and layer of liquid crystal molecule, black matrix
Individual sub-pixel, black matrix have the projection extended to the open region of sub-pixel, and in sub-pixel, electrode includes slit, to electrode
After applying voltage, electrode forms the electric field of control liquid crystal molecule deflection；Figure 12 is display panel provided in an embodiment of the present invention
Preparation method schematic flow sheet, as shown in figure 12, preparation method includes：
Step S101：Target area is determined according to simulated test, wherein, target area is son after applying voltage to electrode
The region of the disorderly arrangement of liquid crystal molecule in pixel in the end of slit；
Step S102：Raised shape, the orthographic projection covering mesh of the raised plane where electrode are determined according to target area
Mark the orthographic projection of region plane where electrode；
Step S103：Black matrix is made according to the raised shape of determination.
The preparation method of display panel provided in an embodiment of the present invention is black for making any one above-mentioned display panel
The projection having on matrix can cover the region of the disorderly arrangement of liquid crystal molecule of the end of slit completely, and slit both ends are not present
The low region of luminous efficiency, to aperture opening ratio loss reduction while effectively improving contrast.
Further, the present invention also provides a kind of display device, including the display panel described in any of the above-described embodiment.Figure
13 be the schematic top plan view of display device provided in an embodiment of the present invention.Display device provided by the invention, display panel it is black
Matrix has the projection extended to sub-pixel open region, and the orthographic projection of the raised plane where electrode has and the end of slit weight
Folded part, then display panel is under black picture, the liquid crystal molecule disorder layout area portion of the electrode narrow slit end in sub-pixel
Divide and covered or all covered by black matrix by black matrix, the risk that the region produces light leak can be reduced, it is bright to reduce black state
Degree, and under white picture, liquid crystal molecule disorder layout area is small to light transmittance contribution in itself, and luminous efficiency is low, by black matrix
Covering rear dialogue state brightness influences smaller, equivalent to the constant and black state luminance-reduction of white state brightness, improves pair of display panel
Degree of ratio.
By above-described embodiment, display panel of the invention and preparation method thereof and display device, reach as follows
Beneficial effect：
The black matrix of display panel has the projection extended to sub-pixel open region, the positive throwing of the raised plane where electrode
Shadow has the part overlapping with the end of slit, then display panel is under black picture, the liquid of the electrode narrow slit end in sub-pixel
Brilliant molecule disorder layout area part is covered or all covered by black matrix by black matrix, can reduce the region and produce light leak
Risk, reduce black state brightness, and under white picture, liquid crystal molecule disorder layout area light transmittance is contributed in itself it is small,
Luminous efficiency is low, by black matrix cover rear dialogue state brightness influence it is smaller, equivalent to the constant and black state luminance-reduction of white state brightness,
Improve the contrast of display panel.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel it should be understood that example above merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (15)
- A kind of 1. display panel, it is characterised in thatIncluding black matrix and electrode,The viewing area of the display panel is divided into multiple sub-pixels by the black matrix；In each sub-pixel, the electrode has slit, and the slit has end；The black matrix has the projection extended to the open region of the sub-pixel, projection plane where the electrode Orthographic projection has the part overlapping with the end of the slit.
- 2. display panel according to claim 1, it is characterised in thatThe slit includes first end, the second end and the main body between the first end and the second end Portion, the main part, the first end and the second end are interconnected；It is described raised including first raised and/or the second projection, the orthographic projection of the described first raised plane where the electrode With the part overlapping with the first end, the orthographic projection of the described second raised plane where the electrode have with it is described The overlapping part of the second end.
- 3. display panel according to claim 2, it is characterised in thatThe first end main part relative with the second end respectively constitutes turning；The bearing of trend of first projection is identical with the bearing of trend of the first end, the described second raised bearing of trend It is identical with the bearing of trend of the second end.
- 4. display panel according to claim 3, it is characterised in thatStraight line where two intersection points of the first end and the main part is first straight line, the second end with it is described Straight line where two intersection points of main part is second straight line；On the bearing of trend of the first straight line, the described first raised width is more than or equal to the width of the first end, The orthographic projection of the described first raised plane where the electrode covers the first end；In the extension side of the second straight line Upwards, the described second raised width is more than or equal to the width of the second end, and second projection is where the electrode The orthographic projection of plane covers the second end.
- 5. display panel according to claim 4, it is characterised in thatDescribed first raised edge has the part overlapping with the first straight line in the projection of the plane where the electrode,Described second raised edge has the part overlapping with the second straight line in the projection of the plane where the electrode.
- 6. according to any described display panel in claim 2 to 5, it is characterised in thatThe black matrix include extending in a first direction multiple first block article and extend in a second direction multiple the Two block bar；The bearing of trend of the main part forms angle with the second direction, and the angle is more than 45 ° and less than or equal to 90 °, The bearing of trend of the first direction, the second direction and the main part is parallel with the plate face of the display panel,The projection is arranged at described second and blocks bar.
- 7. display panel according to claim 6, it is characterised in thatIn said first direction, described second bar is blocked with the first edge and second edge being oppositely arranged；Multiple first projections are provided with the first edge spaced a predetermined distance, pre- spacing is spaced in the second edge It is raised from provided with multiple described second, wherein, the preset distance is the electrode two neighboring institute in this second direction State the distance between slit.
- 8. display panel according to claim 6, it is characterised in thatThe bearing of trend of the main part of each slit of the electrode is identical.
- 9. display panel according to claim 6, it is characterised in thatThe main part of each slit of the electrode include the first branch for being connected with the first end and with institute State the second branch that the second end is connected；First branch and second branch are on the first axial symmetry, and the first axle is positioned at first branch and institute State between the second branch and extend in the second direction.
- 10. display panel according to claim 6, it is characterised in thatThe slit includes the first slit and the second slit；First slit and second slit are on the second axial symmetry, and second axle is positioned at first slit and institute State between the second slit and extend in the first direction.
- 11. display panel according to claim 1, it is characterised in thatThe display panel, in addition to layer of liquid crystal molecule,After applying voltage to the electrode, in the sub-pixel, there is the disorderly arrangement of liquid crystal molecule in the end of the slit Region,The raised orthographic projection in the layer of liquid crystal molecule covers the region of the disorderly arrangement of the liquid crystal molecule.
- 12. display panel according to claim 1, it is characterised in thatThe raised orthographic projection of plane where the electrode is shaped as semicircle, triangle or trapezoidal.
- 13. display panel according to claim 1, it is characterised in thatThe electrode is pixel electrode and/or public electrode.
- A kind of 14. preparation method of display panel, it is characterised in thatThe display panel includes：Black matrix, electrode and layer of liquid crystal molecule,The viewing area of the display panel is divided into multiple sub-pixels by the black matrix, and the black matrix has to the sub- picture The projection of the open region extension of element,In the sub-pixel, the electrode includes slit, and after applying voltage to the electrode, the electrode forms control liquid crystal The electric field of molecule deflection；The preparation method includes：Target area is determined according to simulated test, wherein, the target area is the sub- picture after applying voltage to the electrode The region of the disorderly arrangement of liquid crystal molecule of the end of the plain inherent slit；The raised shape, the orthographic projection covering of the raised plane where the electrode are determined according to the target area The orthographic projection of target area plane where the electrode；The black matrix is made according to the raised shape of determination.
- 15. a kind of display device, it is characterised in that including the display panel described in any one of claim 1 to 13.
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