CN110187578A - Display base plate and preparation method thereof, display device - Google Patents
Display base plate and preparation method thereof, display device Download PDFInfo
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- CN110187578A CN110187578A CN201910567464.3A CN201910567464A CN110187578A CN 110187578 A CN110187578 A CN 110187578A CN 201910567464 A CN201910567464 A CN 201910567464A CN 110187578 A CN110187578 A CN 110187578A
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- data line
- transparent conductive
- conductive pattern
- orthographic projection
- base plate
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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
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
- G02F1/136295—Materials; Compositions; Manufacture processes
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/40—Arrangements for improving the aperture ratio
Abstract
The present invention provides a kind of display base plates and preparation method thereof, display device, belong to field of display technology.Display base plate includes: the data line on underlay substrate；Transparent conductive pattern positioned at the data line far from the underlay substrate side, insulating layer is separated between the transparent conductive pattern and the data line, the transparent conductive pattern the first orthographic projection on the underlay substrate at a distance from the data line is between the second orthographic projection on the underlay substrate less than the display base plate pixel electrode at a distance from the third orthographic projection on the underlay substrate is between second orthographic projection, at least partly described transparent conductive pattern be it is rough.Technical solution of the present invention can prevent from generating light leakage around the data line of liquid crystal display panel in the case where guaranteeing aperture opening ratio.
Description
Technical field
The present invention relates to field of display technology, a kind of display base plate and preparation method thereof, display device are particularly related to.
Background technique
In liquid crystal display panel, since gate drive signal is progressive scan, when a pixel is without display,
Adjacent data line still has electric signal input, and there are voltage differences between such data line and the pixel electrode of the pixel, cause
There are electric field around data line, liquid crystal disorder around data line generates light leakage, influences the display effect of liquid crystal display panel.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of display base plate and preparation method thereof, display device, Neng Gou
In the case where guaranteeing aperture opening ratio, prevent from generating light leakage around the data line of liquid crystal display panel.
In order to solve the above technical problems, the embodiment of the present invention offer technical solution is as follows:
On the one hand, a kind of display base plate is provided, comprising:
Data line on underlay substrate；
Transparent conductive pattern positioned at the data line far from the underlay substrate side, the transparent conductive pattern and institute
Insulating layer, first orthographic projection of the transparent conductive pattern on the underlay substrate and the number are separated between stating between data line
It is less than the pixel electrode of the display base plate in the lining according to distance of the line between the second orthographic projection on the underlay substrate
The distance between third orthographic projection and second orthographic projection on substrate, at least partly described transparent conductive pattern are bumps
Uneven.
Optionally, there are overlapping regions with second orthographic projection for first orthographic projection.
Optionally, second orthographic projection is fallen into first orthographic projection.
Optionally, the transparent conductive pattern and the pixel electrode use identical material.
Optionally, the display base plate further include:
Spacer material positioned at the data line far from the underlay substrate side, the data line is on the underlay substrate
Orthographic projection fall into the spacer material in the orthographic projection on the underlay substrate, the transparent conductive pattern covers the dottle pin
The side surface of object.
Optionally, the side surface close to the surface of the fringe region of the underlay substrate be it is rough, it is described
Bright conductive pattern covers the fringe region.
Optionally, the longitudinal section of the data line is trapezoidal, and the trapezoidal base angle is less than predetermined angle threshold value.
Optionally, the section of the transparent conductive pattern in a first direction is zigzag or wavy, the first party
To parallel with the extending direction of the transparent conductive pattern and vertical with the underlay substrate.
The embodiment of the invention also provides a kind of production methods of display base plate, comprising:
It is formed data line on underlay substrate；
Form insulating layer；
Form transparent conductive pattern, first orthographic projection of the transparent conductive pattern on the underlay substrate and the number
It is less than the pixel electrode of the display base plate in the lining according to distance of the line between the second orthographic projection on the underlay substrate
The distance between third orthographic projection and second orthographic projection on substrate, at least partly described transparent conductive pattern are bumps
Uneven.
The embodiment of the invention also provides a kind of display devices, including display base plate as described above.
The embodiment of the present invention has the advantages that
In above scheme, the side of underlay substrate is provided with transparent conductive pattern, transparent conductive pattern in data line
It is less than display base at a distance from data line is between the second orthographic projection on underlay substrate in the first orthographic projection on underlay substrate
The pixel electrode of plate is at a distance from the third orthographic projection on underlay substrate is between the second orthographic projection, such transparent conductive pattern energy
It is enough that electric signal on data line is shielded, reduce the electric field generated between data line and pixel electrode, avoids data line all
There is light leakage in the liquid crystal disorder enclosed, while transparent conductive pattern is at least partially rough, enables to corresponding region
Liquid crystal generate to wrong effect, further mitigate the light leakage around data line.
Detailed description of the invention
Fig. 1 is the schematic diagram of the relevant technologies display base plate；
Fig. 2 is the schematic diagram that light leakage is generated around data line；
Fig. 3 is the schematic diagram of the relevant technologies display base plate；
Fig. 4 is the schematic cross-section in the direction Fig. 3 AA；
Fig. 5 is the schematic diagram of the relevant technologies display base plate；
Fig. 6 is the schematic cross-section in the direction Fig. 5 AA；
Fig. 7 is the schematic diagram of display base plate of the embodiment of the present invention；
Fig. 8 is the schematic diagram that the embodiment of the present invention is exposed spacer material material；
Electric field schematic diagram of the Fig. 9 between related art transparent conductive pattern and data line；
Electric field schematic diagram of the Figure 10 between transparent conductive pattern of the embodiment of the present invention and data line；Figure 11-15 is this hair
The production process schematic diagram of bright embodiment display base plate.
Appended drawing reference
1 data line
2 shading graphs
3 pixel electrodes
4 liquid crystal
5 black matrix
6 shading spacer materials
7 light transmission spacer materials
8 transparent conductive patterns
9 mask plates
71 spacer material materials
10 electric field lines
11 grid lines
12 public electrodes
13 grids
14 gate insulation layers
15 active layers
16 source electrodes or drain electrode
17 passivation layers
Specific embodiment
To keep the embodiment of the present invention technical problems to be solved, technical solution and advantage clearer, below in conjunction with
Drawings and the specific embodiments are described in detail.
In liquid crystal display panel, since gate drive signal is progressive scan, when a pixel is without display,
Adjacent data line still has electric signal input, and there are voltage differences between such data line 1 and the pixel electrode 3 of the pixel, such as
Shown in Fig. 2, leading to 1 surrounding of data line, there are electric field, 1 surrounding liquid crystal of data line, 4 disorders, in order to block light leakage, such as Fig. 1 and Fig. 2
Shown, the relevant technologies are blocked in 1 two sides of data line setting shading graph 2 come the light leaked out to backlight, in order into one
Step blocks light leakage, is also provided with the bigger black matrix 5 of width on color membrane substrates to be blocked, has seriously affected liquid in this way
The aperture opening ratio of LCD panel.
In order to reduce light leakage, as shown in Figure 3 and Figure 4, shading spacer material 6 is set above data line 1 in the related technology, is hidden
Block underbed 6 can occupy the space above data line, reduce the quantity of the liquid crystal to get muddled, in addition, shading spacer material 6 can
It is made with being less than the material of liquid crystal using dielectric constant, for example the dielectric constant of liquid crystal is about 6.5, the dielectric of shading spacer material 6
Constant is about 3.4, can preferably weaken the electric field strength on 1 periphery of data line in this way.
In order to improve the aperture opening ratio of liquid crystal display panel, as shown in Figure 5 and Figure 6, shading spacer material 6 can be replaced with
Light spacer material 7, and transparent conductive pattern 8 is made on light transmission spacer material 7, shading spacer material 7 can use liquid crystal display panel
Original transparent insulation film layer production, the manufacture craft of liquid crystal display panel can be simplified in this way.Transparent conductive pattern 8 is located at saturating
On light spacer material 7, the electric field between data line 1 and pixel electrode 3 can be confined to 7 region of light transmission spacer material, so that
Liquid crystal 4 is by being influenced to reduce, to reduce light leakage.
But above scheme is not fully solved leakage problem yet, and the setting biggish black square of width is also needed in this way on color membrane substrates
Battle array blocks light leakage, so that the aperture opening ratio of liquid crystal display panel is smaller.
The embodiment of the present invention, can in view of the above-mentioned problems, provide a kind of display base plate and preparation method thereof, display device
In the case where guaranteeing aperture opening ratio, prevent from generating light leakage around the data line of liquid crystal display panel.
The embodiment of the present invention provides a kind of display base plate, as shown in fig. 7, comprises:
Data line 1 on underlay substrate；
Transparent conductive pattern 8 positioned at the data line 1 far from the underlay substrate side, the transparent conductive pattern with
Insulating layer, first orthographic projection and institute of the transparent conductive pattern 8 on the underlay substrate are separated between the data line 1
The pixel electrode 3 that distance of the data line 1 between the second orthographic projection on the underlay substrate is stated less than the display base plate exists
The distance between third orthographic projection and second orthographic projection on the underlay substrate, at least partly described transparent conductive pattern
8 be rough.
In the present embodiment, the side of underlay substrate is provided with transparent conductive pattern, transparent conductive pattern in data line
It is less than display base at a distance from data line is between the second orthographic projection on underlay substrate in the first orthographic projection on underlay substrate
The pixel electrode of plate is at a distance from the third orthographic projection on underlay substrate is between the second orthographic projection, such transparent conductive pattern energy
It is enough that electric signal on data line is shielded, reduce the electric field generated between data line and pixel electrode, avoids data line all
There is light leakage in the liquid crystal disorder enclosed, while transparent conductive pattern is at least partially rough, enables to corresponding region
Liquid crystal generate to wrong effect, further mitigate the light leakage around data line.
LCD disclination effect refers to liquid crystal molecule since the discontinuity (singularity) in orientation is caused, at these
The direction of director has the variation of discontinuity on the line of singularity, if the director of certain is due to certain outer masterpiece in liquid crystal
With deviating from normal direction, then director everywhere in a limited range near at this, all will continuously carry out
Certain adjustment, as a result, display is caused a dark line occur；But lattice structure is not present in liquid crystal, therefore be not in
Only there is the discontinuity of orientation arrow arrangement, to form point dislocation and line on one point in dislocation surface on a upper or curve
Dislocation.
As shown in figure 9, the electric field when transparent conductive pattern 8 is smooth, between data line 1 and transparent conductive pattern 8
Direction is consistent, wherein 10 be electric field line, will not destroy the continuity of liquid crystal；When transparent conductive pattern 8 is rough
When, as shown in Figure 10, the direction of electric field line 10 changes, it will lead to the variation of the Formation of liquid crystals direction arrow of 1 top of data line,
Liquid crystal is caused to occur discontinuous, i.e. LCD disclination, dark line occurs in side in this position, inhibits light leakage.
The present embodiment utilizes this phenomenon of LCD disclination, rough by the way that transparent conductive pattern 8 to be designed as, and makes to count
Occur according to 1 top liquid crystal of line to wrong phenomenon, to achieve the effect that inhibit light leakage.
Preferably, the whole of transparent conductive pattern 8 is rough, can increase the region of LCD disclination in this way.
Transparent conductive pattern 8 can be located at the surface of data line 1, can also be separated by a certain distance with data line 1, but thoroughly
Bright conductive pattern 8 is unable to range data line 1 too far, and such transparent conductive pattern 8 can effectively shield the telecommunications on data line 1
Number.
In one specific embodiment, the first orthographic projection can there are overlapping region, such electrically conducting transparent figures with the second orthographic projection
Shape 8 can preferably shield the electric signal on data line 1.
Preferably, as shown in fig. 7, second orthographic projection is fallen into first orthographic projection, such transparent conductive pattern 8
The electric signal on data line 1 can farthest be shielded.
Transparent conductive pattern 8 can use identical material with pixel electrode 3, can form pixel electrode 3 in this way
Transparent conductive pattern 8 is formed in homogeneous patterning processes, without making transparent conductive pattern 8, energy by special patterning processes
Enough simplify the production technology of display base plate.
As shown in fig. 7, pixel electrode 3 is not present at 1 crossover location of grid line 11 and data line, the data line at the position
Electric signal on 1 will not impact pixel electrode 3, therefore, in no setting is required 11 position of grid line transparent conductive pattern
8。
In one specific embodiment, the display base plate further include:
Spacer material positioned at the data line far from the underlay substrate side, the data line is on the underlay substrate
Orthographic projection fall into the spacer material in the orthographic projection on the underlay substrate, the transparent conductive pattern covers the dottle pin
The side surface of object.
Spacer material can occupy the space of 1 top of data line in this way, reduce the quantity of the liquid crystal to get muddled, reduce leakage
Light.The material that spacer material can be less than liquid crystal using dielectric constant makes, for example the dielectric constant of liquid crystal is about 6.5, spacer material
Dielectric constant be about 3.4, can preferably weaken the electric field strength on 1 periphery of data line in this way.
In order to reduce the influence to liquid crystal display panel aperture opening ratio, as shown in fig. 7, spacer material can use light transmission spacer material
7, at least partly region of the side surface of light transmission spacer material 7 can be it is rough, in this way positioned at 7 side surface of light transmission spacer material
On transparent conductive pattern 8 can also be formed as rough.
When simulating Fig. 5 and display base plate shown in fig. 6, find to be easy in the marginal position of light transmission spacer material 7
There is light leakage, it may be possible to the edge of light transmission spacer material 7 is more caused than relatively thin, therefore, and in the present embodiment, 7 side table of light transmission spacer material
Face close to the surface of the fringe region of the underlay substrate be it is rough, the transparent conductive pattern 8 covers the edge
Region, in this way positioned at 7 fringe region of light transmission spacer material transparent conductive pattern 8 be it is rough, light transmission dottle pin can be made
7 fringe region of object is generated to wrong effect, mitigates light leakage phenomena.
Specifically, the section of the transparent conductive pattern 8 in a first direction can be zigzag or wavy, described the
One direction is parallel with the extending direction of the transparent conductive pattern and vertical with the underlay substrate, can pass through zigzag in this way
Or wavy pattern makes the electric field between data line 1 and transparent conductive pattern 8 form difference, leads to the liquid of the top of the position
Crystalline substance is generated to wrong effect, forms a dark line, is achieved the effect that inhibit light leakage, can be reduced color membrane substrates to the greatest extent in this way
The width of black matrix on data line direction, improves the aperture opening ratio of liquid crystal display panel.
As shown in figure 8, can be formed on the underlay substrate for being formed with data line 1 photosensitive when making light transmission spacer material 7
Spacer material material 71, spacer material material 71 can use negativity photosensitive material, using ultraviolet light to be located at the data line 1 on
The spacer material material 71 of side is exposed, wherein the mask plate 9 for exposing use includes the opening of respective data lines 1, the opening
Size can be set as needed, as long as enabling to the size of light transmission spacer material 7 formed after exposure slightly larger than data line 1
Size, data line 1 mostly uses metal material to make, and the side surface of data line 1 can be reflected and be dissipated to ultraviolet light
It penetrates, so that the light intensity that 71 first area of spacer material material receives is greater than the light intensity of second area, wherein first area and second
Region is arranged alternately, and removes the spacer material material not being exposed later, the figure of light transmission spacer material 7 is formed, due to first area
Different with the exposure intensity of second area, the side surface of light transmission spacer material 7 can form zigzag or wavy pattern.Exist later
Light transmitting electro-conductive figure 8 is formed on light transmission spacer material 7, then light transmitting electro-conductive figure 8 is located at the part on the side surface of light transmission spacer material 7
It also is zigzag or wavy pattern, wherein light transmitting electro-conductive figure 8 can only cover the side surface of light transmission spacer material 7, can also be with
Cover the side surface and upper surface of light transmission spacer material 7.
In order to guarantee that the side surface of data line 1 is effectively reflected and scattered to ultraviolet light, the longitudinal section of data line 1 is
Trapezoidal and trapezoidal base angle is less than predetermined angle threshold value, and predetermined angle threshold value can be 45 °, in addition it can improve data line 1
The refractive index of transparent insulating layer between light transmission spacer material 7, in this way it is also possible that the side surface of data line 1 carries out ultraviolet light
Effective reflection and scattering.
The embodiment of the invention also provides a kind of production methods of display base plate, comprising:
It is formed data line on underlay substrate；
Form insulating layer；
Form transparent conductive pattern, first orthographic projection of the transparent conductive pattern on the underlay substrate and the number
It is less than the pixel electrode of the display base plate in the lining according to distance of the line between the second orthographic projection on the underlay substrate
The distance between third orthographic projection and second orthographic projection on substrate, at least partly described transparent conductive pattern are bumps
Uneven.
The production method of the display base plate of the present embodiment is to make above-mentioned display base plate.
In the present embodiment, the side of underlay substrate is provided with transparent conductive pattern, transparent conductive pattern in data line
It is less than display base at a distance from data line is between the second orthographic projection on underlay substrate in the first orthographic projection on underlay substrate
The pixel electrode of plate is at a distance from the third orthographic projection on underlay substrate is between the second orthographic projection, such transparent conductive pattern energy
It is enough that electric signal on data line is shielded, reduce the electric field generated between data line and pixel electrode, avoids data line all
There is light leakage in the liquid crystal disorder enclosed, while transparent conductive pattern is at least partially rough, enables to corresponding region
Liquid crystal generate to wrong effect, further mitigate the light leakage around data line.
The display base plate of the present embodiment specifically includes the following steps:
Step 1, as shown in figure 11, a underlay substrate is provided, on underlay substrate formed public electrode 12；
Step 2, as shown in figure 12, the insulating layer of formation covering public electrode 12, and barrier metal layer is formed on the insulating layer
Figure, grid metal figure include grid 13；
Step 3, as shown in figure 13, formation gate insulation layer 14, and active layer 15 and source and drain gold are formed on gate insulation layer 14
Belong to layer pattern, Source and drain metal level figure includes source electrode or drain electrode 16 and data line 1；
Step 4, as shown in figure 14, formation passivation layer 17, and light transmission spacer material 7 is formed on passivation layer 17；
As shown in figure 8, can be formed on the underlay substrate for being formed with data line 1 photosensitive when making light transmission spacer material 7
Spacer material material 71, spacer material material 71 can use negativity photosensitive material, using ultraviolet light to be located at the data line 1 on
The spacer material material 71 of side is exposed, wherein the mask plate 9 for exposing use includes the opening of respective data lines 1, the opening
Size can be set as needed, as long as enabling to the size of light transmission spacer material 7 formed after exposure slightly larger than data line 1
Size, data line 1 mostly uses metal material to make, and the side surface of data line 1 can be reflected and be dissipated to ultraviolet light
It penetrates, so that the light intensity that 71 first area of spacer material material receives is greater than the light intensity of second area, wherein first area and second
Region is arranged alternately, and removes the spacer material material not being exposed later, the figure of light transmission spacer material 7 is formed, due to first area
Different with the exposure intensity of second area, the side surface of light transmission spacer material 7 can form zigzag or wavy pattern.Exist later
Light transmitting electro-conductive figure 8 is formed on light transmission spacer material 7, then light transmitting electro-conductive figure 8 is located at the part on the side surface of light transmission spacer material 7
It also is zigzag or wavy pattern, wherein light transmitting electro-conductive figure 8 can only cover the side surface of light transmission spacer material 7, can also be with
Cover the side surface and upper surface of light transmission spacer material 7.
In order to guarantee that the side surface of data line 1 is effectively reflected and scattered to ultraviolet light, the longitudinal section of data line 1 is
Trapezoidal and trapezoidal base angle is less than predetermined angle threshold value, is passivated between data line 1 and light transmission spacer material 7 in addition it can improve
The refractive index of layer 17, in this way it is also possible that the side surface of data line 1 is effectively reflected and scattered to ultraviolet light.
Step 5, as shown in figure 15, formation pixel electrode 3 and transparent conductive pattern 8.
Specifically, pixel electrode 3 and transparent conductive pattern 8 can be formed simultaneously by a patterning processes.Electrically conducting transparent
The section of figure 8 in a first direction can be zigzag or wavy, the first direction and the transparent conductive pattern
Extending direction is parallel and vertical with the underlay substrate, can lead to 1 He of data line by zigzag or wavy pattern in this way
Electric field between transparent conductive pattern 8 forms difference, and the liquid crystal of the top of the position is caused to generate to wrong effect, forms one secretly
Line achievees the effect that inhibit light leakage, can reduce the width of color membrane substrates black matrix on data line direction to the greatest extent in this way
Degree, improves the aperture opening ratio of liquid crystal display panel.
The embodiment of the invention also provides a kind of display devices, including display base plate as described above.The display device packet
Include but be not limited to: radio frequency unit, network module, audio output unit, input unit, sensor, display unit, user input list
The components such as member, interface unit, memory, processor and power supply.It will be understood by those skilled in the art that above-mentioned display device
Structure do not constitute the restriction to display device, display device may include above-mentioned more or fewer components, or combination
Certain components or different component layouts.In embodiments of the present invention, display device include but is not limited to display, mobile phone,
Tablet computer, television set, wearable electronic, navigation display equipment etc..
The display device can be with are as follows: any tool such as LCD TV, liquid crystal display, Digital Frame, mobile phone, tablet computer
There are the products or components of display function, wherein the display device further includes flexible circuit board, printed circuit board and backboard.
In each method embodiment of the present invention, the serial number of each step can not be used to limit the successive suitable of each step
Sequence, for those of ordinary skill in the art, without creative efforts, the successive variation to each step
Within protection scope of the present invention.
It is to be appreciated that all the embodiments in this specification are described in a progressive manner, phase between each embodiment
It may refer to each other with similar part, each embodiment focuses on the differences from other embodiments.In particular,
For embodiment, since it is substantially similar to product embodiments, so describing fairly simple, related place is referring to product
The part of embodiment illustrates.
Unless otherwise defined, the technical term or scientific term that the disclosure uses should be tool in disclosure fields
The ordinary meaning for thering is the personage of general technical ability to be understood." first ", " second " used in the disclosure and similar word are simultaneously
Any sequence, quantity or importance are not indicated, and are used only to distinguish different component parts." comprising " or "comprising" etc.
Similar word means that the element or object before the word occur covers the element or object for appearing in the word presented hereinafter
And its it is equivalent, and it is not excluded for other elements or object.The similar word such as " connection " or " connected " is not limited to physics
Or mechanical connection, but may include electrical connection, it is either direct or indirectly."upper", "lower",
"left", "right" etc. is only used for indicating relative positional relationship, and after the absolute position for being described object changes, then the relative position is closed
System may also correspondingly change.
It is appreciated that ought such as layer, film, region or substrate etc element be referred to as be located at another element "above" or "below"
When, which " direct " can be located at "above" or "below" another element, or may exist intermediary element.
In the description of above embodiment, particular features, structures, materials, or characteristics can be at any one or more
It can be combined in any suitable manner in a embodiment or example.
The above, the only specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the disclosure discloses, and should all contain
It covers within the protection scope of the disclosure.Therefore, the protection scope of the disclosure should be based on the protection scope of the described claims.
Claims (10)
1. a kind of display base plate characterized by comprising
Data line on underlay substrate；
Transparent conductive pattern positioned at the data line far from the underlay substrate side, the transparent conductive pattern and the number
According to being separated with insulating layer, first orthographic projection of the transparent conductive pattern on the underlay substrate and the data line between line
Distance between the second orthographic projection on the underlay substrate is less than the pixel electrode of the display base plate in the substrate base
The distance between third orthographic projection and second orthographic projection on plate, at least partly described transparent conductive pattern are uneven
's.
2. display base plate according to claim 1, which is characterized in that first orthographic projection is deposited with second orthographic projection
In overlapping region.
3. display base plate according to claim 2, which is characterized in that second orthographic projection falls into first orthographic projection
It is interior.
4. display base plate according to claim 1, which is characterized in that the transparent conductive pattern is adopted with the pixel electrode
With identical material.
5. display base plate according to claim 1, which is characterized in that the display base plate further include:
Spacer material positioned at the data line far from the underlay substrate side, the data line on the underlay substrate just
Projection falls into the spacer material in the orthographic projection on the underlay substrate, and the transparent conductive pattern covers the spacer material
Side surface.
6. display base plate according to claim 5, which is characterized in that the side surface is close to the edge of the underlay substrate
The surface in region is rough, the transparent conductive pattern covering fringe region.
7. display base plate according to claim 1, which is characterized in that the longitudinal section of the data line is trapezoidal, the ladder
The base angle of shape is less than predetermined angle threshold value.
8. display base plate according to claim 1, which is characterized in that section of the transparent conductive pattern in a first direction
Face be zigzag or wavy, the first direction it is parallel with the extending direction of the transparent conductive pattern and with the substrate base
Plate is vertical.
9. a kind of production method of display base plate characterized by comprising
It is formed data line on underlay substrate；
Form insulating layer；
Form transparent conductive pattern, first orthographic projection of the transparent conductive pattern on the underlay substrate and the data line
Distance between the second orthographic projection on the underlay substrate is less than the pixel electrode of the display base plate in the substrate base
The distance between third orthographic projection and second orthographic projection on plate, at least partly described transparent conductive pattern are uneven
's.
10. a kind of display device, which is characterized in that including display base plate such as of any of claims 1-8.
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| CN201910567464.3A CN110187578B (en) | 2019-06-27 | 2019-06-27 | Display substrate, manufacturing method thereof and display device |
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| CN201910567464.3A CN110187578B (en) | 2019-06-27 | 2019-06-27 | Display substrate, manufacturing method thereof and display device |
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| CN110187578B (en) | 2022-07-01 |
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