CN106371242A - Display substrate, display panel, display device and manufacturing method - Google Patents
Display substrate, display panel, display device and manufacturing method Download PDFInfo
- Publication number
- CN106371242A CN106371242A CN201611005103.2A CN201611005103A CN106371242A CN 106371242 A CN106371242 A CN 106371242A CN 201611005103 A CN201611005103 A CN 201611005103A CN 106371242 A CN106371242 A CN 106371242A
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- Prior art keywords
- shading graph
- sub
- underlay substrate
- base plate
- display
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
Abstract
The invention provides a display substrate, a display panel, a display device and a manufacturing method and relates to the technical field of display. The display substrate comprises a substrate base plate, a color filter formed on the substrate base plate, a black matrix, and a shading graph. An orthographic projection of the shading graph on the substrate base plate falls in an orthographic projection of the black matrix on the substrate base plate, the perpendicular distance between at least part of the shading graph and the substrate base plate is larger than the perpendicular distance between the color filter and the substrate base plate. The display substrate is provided with the shading graph protruded out of the color filter, the shading graph can shade part of lateral display light of other pixels for a pixel area corresponding to the color filter, so that when a user skews at a display picture, a light leakage phenomenon cannot be nosed out, and the problem of cross color of the display picture is effectively solved.
Description
Technical field
The present invention relates to display technology field, particularly relate to a kind of display base plate, display floater, display device and making side
Method.
Background technology
Develop to high ppi direction with liquid crystal display, the size between pixel is made less and less, this makes to be used for
The width blocking the black matrix in gap between pixel also will diminish therewith.And the width of black matrix diminishes, certainly will influence whether black
The support strength of matrix is so that height also will diminish therewith.
With reference to Fig. 1, Fig. 1 is the partial structural diagram of existing display panels, in the black matrix (black in Fig. 1
Rectangle) in the case of insufficient height, the display light in one part of pixel region can according to the direction shown in arrow in Fig. 1 oblique its
Colorized optical filtering region corresponding to his pixel, so that colour contamination and light leakage phenomena in display picture.
Exemplarily it is assumed that looking side ways (for example pure red picture, redness when observing liquid crystal display red, green, blue pure color picture
Pixel is opened, and green and blue pixel are to close), can be appreciated that other pixels adjacent spill variegated light, have a strong impact on pure color
The display quality of picture.
Content of the invention
Present invention aim to address the colour contamination phenomenon that existing display device occurs.
For achieving the above object, on the one hand, embodiments of the invention provide a kind of display base plate, including underlay substrate, shape
Become the colored filter on described underlay substrate and black matrix, described display base plate also includes:
Shading graph, orthographic projection on described underlay substrate for the described shading graph falls into described black matrix in described substrate
In orthographic projection on substrate, and the vertical dimension between described shading graph at least a portion and described underlay substrate is more than described
Vertical dimension between colored filter and described underlay substrate.
Further, described shading graph includes: the first sub- shading graph of stacking gradually, the second sub- shading graph and
3rd sub- shading graph, described colored filter includes blue color filter, green color filter and Red lightscreening plate；
Described first sub- shading graph is identical with the material of the green color filter in described colored filter, described second son
Shading graph is identical with the material of the Red lightscreening plate in described colored filter, described 3rd sub- shading graph and described colour
The material of the blue color filter in optical filter is identical.
Further, the thickness of described first sub- shading graph is more than the thickness of the described second sub- shading graph, and described the
The thickness of two sub- shading graph is more than the thickness of described 3rd sub- shading graph.
Further, the thickness of described first sub- shading graph be 1.0 μm to 1.7 μm, described second sub- shading graph with
And the thickness range of described 3rd sub- shading graph is 0.3 μm to 0.5 μm.
Further, orthographic projection on described underlay substrate for the described shading graph and described black matrix are in described substrate base
Orthographic projection on plate overlaps.
On the other hand, the present invention also provides a kind of manufacture method of display base plate, forms black matrix including in underlay substrate
With the step of colored filter, also include:
The step forming shading graph；Wherein, described shading graph falls into described black square in the projection of described underlay substrate
In battle array projection on described underlay substrate, and the vertical dimension between described shading graph at least a portion and described underlay substrate
More than the vertical dimension between described colored filter and described underlay substrate.
Further, described colored filter includes blue color filter, green color filter and Red lightscreening plate；
The step forming shading graph in described black matrix includes:
On the underlay substrate be formed with black matrix, the green photoresist layer of one layer of deposition, forms blueness by patterning processes
Optical filter and the first sub- shading graph；
The red photoresist layer of one layer of deposition, forms Red lightscreening plate and the second sub- shading graph by patterning processes；
Deposition blue layer photoresist layer, forms green color filter and the 3rd sub- shading graph by patterning processes.
Further, the thickness model of the described redness photoresist layer of the described blue light resistance layer of deposition and deposition
Enclose for 0.3 μm to 0.5 μm, the thickness of the described green photoresist layer of deposition is 1.0 μm to 1.7 μm.
Additionally, the present invention also provides a kind of display device, including above-mentioned display base plate.
Additionally, the present invention also provides a kind of display device, including the display base plate of above-mentioned manufacture method making.
The such scheme of the present invention has the advantages that
The present invention arranges, on display base plate, the shading graph protruding from colored filter, and this shading graph can be colour
The corresponding pixel region of optical filter blocks the display light of a part of other lateral pixels, thus effectively solving display picture goes out
Existing colour contamination phenomenon.
Brief description
Fig. 1 is the partial schematic diagram of existing display base plate；
Fig. 2 and Fig. 3 is the structural representation of the display base plate of the present invention；
Fig. 4 a- Fig. 4 d is the flow process structure schematic diagram of the manufacture method of display base plate of the present invention.
Specific embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
For existing display device, colour contamination phenomenon easily occurs, the present invention provides a solution.
On the one hand, the present invention provides a kind of display base plate, as shown in Figure 2, comprising:
Underlay substrate 1；
It is formed at the colored filter 2 on underlay substrate 1 and black matrix 3；
Shading graph 4, this shading graph 4 falls into black matrix 3 on underlay substrate 1 in the orthographic projection on underlay substrate 1
In orthographic projection (for example: in the orthographic projection on underlay substrate, the orthographic projection on underlay substrate overlaps shading graph with black matrix),
And the vertical dimension between shading graph 4 at least a portion and underlay substrate 1 is more than between colored filter 2 and underlay substrate 1
Vertical dimension so that shading graph 4 colored filter 2 relatively is formed with segment difference.
Obviously, from figure 2 it can be seen that the shading graph of the present invention is due to being convexly equipped in colored filter, therefore, it is possible to for
The corresponding pixel region of colored filter blocks the display light of a part of other lateral pixels, thus effectively solving display picture
The colour contamination phenomenon that face occurs.
Specifically, as shown in figure 3, the colored filter of the present embodiment includes green color filter 21, Red lightscreening plate 22 and
Blue color filter 23.The present embodiment shading graph includes: the first sub- shading graph 41 of stacking gradually, the second sub- shading graph 42
And the 3rd sub- shading graph 43 (i.e. the first sub- shading graph 41 is compared to the second sub- shading graph 42 and the 3rd sub- shading graph
43 closer to black matrix 3).
Wherein, the first sub- shading graph 41 is identical with the material of the green color filter 21 in colored filter, and the second son hides
Light figure 42 is identical with the material of the Red lightscreening plate 22 in colored filter, in the 3rd sub- shading graph 43 and colored filter
Blue color filter 23 material identical.
Obviously, based on the structure design shown in Fig. 3, the shading graph of the present embodiment has been multiplexed the structure of existing colored filter
Figure technique, thus additionally do not add the cost of manufacture of display base plate.Meanwhile, in prior art, the white light of display picture is by red
Light, green glow, blue light are composited, and colorized optical filtering itself is exactly the function for filtering the basic coloured light line of red, green, blue three
Figure layer, is therefore applied to and blocks figure required by the present embodiment.
Further, the white brightness of display picture=HONGGUANG brightness+green glow brightness+blue light brightness.Generally, red
The impact ratio to white brightness for the brightness is 20%, and the impact ratio to white brightness for the green glow brightness is 70%, blue light brightness
Impact ratio to white brightness is 10%.
When assuming that single pixel is opened, this pixel display solid color is a0.When colour contamination display occurs, represent this pixel
Spill the light of adjacent other pixels (hypothesis color is a1), that is, the light of a1 pixel interferes with a0 pixel, now a0 pixel
The color of actual displayed is a2, and a2 is had differences with theoretical color a0.
Because a2 color is mixed by a0 and a1, if adjacent a1 pixel light leak brightness is bright relative to a0 pixel bigger,
A2 and a0 color distortion is bigger, and colour contamination is more serious.
Therefore, can be seen that when a0=redness based on the impact ratio of above-mentioned red, green, blue three colour brightness dialogue brightness,
When a1=is blue, colour contamination phenomenon is lighter；When a1=green, colour contamination phenomenon is serious；When a0=green, when a1=is red, colour contamination
Phenomenon is lighter；When a1=is blue, colour contamination phenomenon is lighter；When a0=is blue, a1=is red, and colour contamination phenomenon is lighter；When a1=is green
Color, colour contamination phenomenon is serious.
Obviously, green is higher to colour contamination influence degree than red, blue, therefore the pixel of red, blue dichromatism is more susceptible to phase
, there is colour contamination phenomenon in the impact of adjacent green pixel.Therefore the present embodiment, ensureing that shading graph plays the premise of shaded effect
Under, increase the thickness of the first sub- shading graph layer, by described above it is recognised that this first sub- shading graph is by green as far as possible
Coloured light resistance layer is made, and can effectively filter green light.
Property introduction as an example, the thickness of the first sub- shading graph of the present embodiment is less than the thickness of the second sub- shading graph
Degree, the thickness of the second sub- shading graph is less than the thickness of the 3rd sub- shading graph.
Wherein preferably, the thickness range of the second of the present embodiment the sub- shading graph and the 3rd sub- shading graph
For 0.3 μm to 0.5 μm, the thickness of the first sub- shading graph is 1.0 μm to 1.7 μm.It is proven, the first sub- shading graph,
Second sub- shading graph and the one or three shading graph adopt above-mentioned thickness design, can effectively block and be in 45 ° with horizontal direction
To 60 ° of lateral light.And in prior art, the display light being in 45 ° to 60 ° with horizontal direction of each independent pixel is exactly
It is easiest to have influence on corresponding region on colored filter for other pixels.
It is more than the introduction of the display base plate of the present embodiment it can be seen that the shading graph of the present embodiment is by existing black
Matrix is responsible for blocking, thus without the void area increasing between pixel region；Secondly, the shading graph of this present embodiment is permissible
Complete together with colored filter, additionally do not take single patterning processes.As can be seen here, the present embodiment can be not
On the premise of reducing aperture opening ratio and increasing cost of manufacture, solve crosstalk phenomenon, therefore there is very high use value.
Further, the lateral light of the present embodiment is due to needing to block by black matrix, so being not required for black matrix tool
There are enough areas to make bigger height.In actual applications, the black matrix of the present embodiment can make more small area, from
And the aperture opening ratio of display base plate is got a promotion.
Furthermore, it is necessary to be described, the display floater of existing display device includes array base palte and is used for and battle array
Row substrate is to box to box substrate (such as color membrane substrates).Wherein, black matrix and colored filter can be arranged on array base palte
Upper it is also possible to be arranged on on box substrate, therefore the display base plate of the present embodiment in actual applications, may refer to array base
Plate is it is also possible to refer to box substrate.Additionally, implementation above being for illustration only property of mode introduces the structure of display base plate, wherein,
One sub- shading graph, the second sub- shading graph and the 3rd sub- shading graph can arbitrarily and red filter, blue color filter with
And the material of green color filter is identical；But as preferred version, near the first sub- shading graph and the green filter of black matrix
Piece is made for same material and can preferably be limited the colour contamination impact that green light brings.
On the other hand, the structure design based on above-mentioned display base plate, another embodiment of the present invention also provides a kind of this to show
The manufacture method showing substrate, comprising:
Form black matrix and the step of colored filter in underlay substrate；And
The step forming shading graph；Wherein, shading graph falls into black matrix in underlay substrate in the projection of underlay substrate
Upper projection in, and shading graph at least a portion and underlay substrate between vertical dimension be more than described colored filter with described
Vertical dimension between underlay substrate.
Specifically, the present embodiment colored filter includes blue color filter, green color filter and Red lightscreening plate；
The step forming shading graph in black matrix specifically includes:
On the underlay substrate be formed with black matrix, the green photoresist layer of one layer of deposition, forms blueness by patterning processes
Optical filter and the first sub- shading graph；
The red photoresist layer of one layer of deposition, forms Red lightscreening plate and the second sub- shading graph by patterning processes；
Deposition blue layer photoresist layer, forms green color filter and the 3rd sub- shading graph by patterning processes.
Preferably, on the premise of shading graph finite thickness, the thickness of the 3rd sub- shading graph of the present embodiment
Degree is greater than the thickness of the first sub- shading graph and the thickness of the second sub- shading graph.
Exemplarily, in above-mentioned steps 31- step 33, deposition described blue light resistance layer and deposition red
The thickness range of coloured light resistance layer is 0.3 μm to 0.5 μm, and the thickness of the described green photoresist layer of deposition is 1.0 μm to 1.7 μ
m.
Below exemplary introduction is carried out to the flow process of the manufacture method of the present embodiment.
The manufacture method of the present embodiment includes:
As shown in fig. 4 a, by the first patterning processes, black matrix 3 is formed on underlay substrate 1；
As shown in Figure 4 b, by the second patterning processes, form the figure 401 of blue photoresist layer in underlay substrate 1；
As illustrated in fig. 4 c, by the 3rd patterning processes, the figure 402 of red photoresist layer on underlay substrate 1 is formed；
As shown in figure 4d, by the 4th patterning processes, form the figure 403 of blue photoresist layer in underlay substrate 1.Permissible
Find out, after the completion of the 4th patterning processes, that is, corresponded to the display base plate shown in Fig. 3.
It is pointed out that the manufacture method that above being for illustration only property of flow process introduces display base plate of the present invention, do not limit
It is scheduled on green photoresist layer, red photoresist layer and blue light resistance layer production order, i.e. the first sub- shading graph, the second sub- shading figure
Shape and the 3rd sub- shading graph can be any one in blue light resistance layer, red photoresist layer and green photoresist layer.But make
For preferred version, the corresponding patterning processes of green photoresist layer should before blue light resistance layer, the patterning processes of red photoresist layer, from
And ensure that the first sub- shading graph of display base plate is that green photoresist layer is formed, and then make shading graph integrally to green light
There is more preferable blocking effect, be relatively beneficial to reduce colour contamination phenomenon.
Obviously, the display base plate of an embodiment in the present invention can be produced by the manufacture method of the present embodiment, therefore
The manufacture method of the present embodiment all enables identical technique effect with the display base plate of a upper embodiment.
Additionally, the present invention also provides a kind of display floater and display device, wherein, display base plate includes above-mentioned display base
Plate, display device includes this display floater.The structure design of the display base plate based on the present embodiment, the display floater of the present invention and
Display device reduces crosstalk phenomenon in display picture, therefore, it is possible to bring higher viewing experience effect to user.
The above is the preferred embodiment of the present invention it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of display base plate, the colored filter including underlay substrate, being formed on described underlay substrate and black matrix, its
It is characterised by, described display base plate also includes:
Shading graph, orthographic projection on described underlay substrate for the described shading graph falls into described black matrix in described underlay substrate
On orthographic projection in, and described shading graph at least a portion and described underlay substrate between vertical dimension be more than described colour
Vertical dimension between optical filter and described underlay substrate.
2. display base plate according to claim 1 it is characterised in that
Described shading graph includes: the first sub- shading graph, the second sub- shading graph and the 3rd sub- shading figure stacking gradually
Shape, described colored filter includes blue color filter, green color filter and Red lightscreening plate；
Described first sub- shading graph is identical with the material of the green color filter in described colored filter, described second sub- shading
Figure is identical with the material of the Red lightscreening plate in described colored filter, described 3rd sub- shading graph and described colorized optical filtering
The material of the blue color filter in piece is identical.
3. display base plate according to claim 2 it is characterised in that
The thickness of described first sub- shading graph is more than the thickness of the described second sub- shading graph, described second sub- shading graph
Thickness is more than the thickness of described 3rd sub- shading graph.
4. display base plate according to claim 3 is it is characterised in that also include:
The thickness of described first sub- shading graph is 1.0 μm to 1.7 μm, and described second sub- shading graph and described 3rd son hide
The thickness range of light figure is 0.3 μm to 0.5 μm.
5. display base plate according to claim 1 it is characterised in that
Described shading graph is in the orthographic projection on described underlay substrate and orthographic projection on described underlay substrate for the described black matrix
Overlap.
6. a kind of manufacture method of display base plate, forms black matrix and the step of colored filter including in underlay substrate, and it is special
Levy and be, also include:
The step forming shading graph；Wherein, described shading graph falls into described black matrix and exists in the projection of described underlay substrate
In projecting on described underlay substrate, and the vertical dimension between described shading graph at least a portion and described underlay substrate is more than
Vertical dimension between described colored filter and described underlay substrate.
7. manufacture method according to claim 6 is it is characterised in that described colored filter includes blue color filter, green
Colo(u)r filter and Red lightscreening plate；
The step forming shading graph in described black matrix includes:
The green photoresist layer of one layer of deposition on the underlay substrate be formed with black matrix, forms blue filter by patterning processes
Piece and the first sub- shading graph；
The red photoresist layer of one layer of deposition, forms Red lightscreening plate and the second sub- shading graph by patterning processes；
Deposition blue layer photoresist layer, forms green color filter and the 3rd sub- shading graph by patterning processes.
8. manufacture method according to claim 7 it is characterised in that
The thickness range of the described redness photoresist layer of the described blue light resistance layer of deposition and deposition is for 0.3 μm extremely
0.5 μm, the thickness of the described green photoresist layer of deposition is 1.0 μm to 1.7 μm.
9. a kind of display device is it is characterised in that include the display base plate as described in any one of claim 1-5.
10. a kind of display device is it is characterised in that include the display base plate making as claim 6-8 any one manufacture method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611005103.2A CN106371242B (en) | 2016-11-11 | 2016-11-11 | A kind of display base plate, display panel, display device and production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005103.2A CN106371242B (en) | 2016-11-11 | 2016-11-11 | A kind of display base plate, display panel, display device and production method |
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| CN106371242A true CN106371242A (en) | 2017-02-01 |
| CN106371242B CN106371242B (en) | 2019-03-26 |
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| WO2019024435A1 (en) * | 2017-08-01 | 2019-02-07 | 深圳市华星光电技术有限公司 | Display panel and display apparatus |
| US10345638B2 (en) | 2017-08-01 | 2019-07-09 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Display panel and display device |
| CN110161739A (en) * | 2019-06-19 | 2019-08-23 | 厦门天马微电子有限公司 | A kind of display panel and display device |
| CN110275341A (en) * | 2019-06-28 | 2019-09-24 | 厦门天马微电子有限公司 | Display panel and display device |
| CN110618555A (en) * | 2019-09-26 | 2019-12-27 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
| CN111034167A (en) * | 2017-08-29 | 2020-04-17 | 索尼半导体解决方案公司 | Image forming apparatus and method of manufacturing the same |
| CN112230465A (en) * | 2020-10-29 | 2021-01-15 | 福州京东方光电科技有限公司 | Color film substrate, preparation method thereof and display panel |
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| CN106371242B (en) | 2019-03-26 |
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