CN106371242B - A kind of display base plate, display panel, display device and production method - Google Patents
A kind of display base plate, display panel, display device and production method Download PDFInfo
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- CN106371242B CN106371242B CN201611005103.2A CN201611005103A CN106371242B CN 106371242 B CN106371242 B CN 106371242B CN 201611005103 A CN201611005103 A CN 201611005103A CN 106371242 B CN106371242 B CN 106371242B
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- shading graph
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- underlay substrate
- shading
- 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
- G02F1/1335—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
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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)
- Optical Filters (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of display base plate, display panel, display device and production method, is related to field of display technology.Wherein, display base plate includes underlay substrate, the colored filter being formed on the underlay substrate and black matrix；Shading graph, the shading graph falls into the black matrix in the orthographic projection on the underlay substrate in the orthographic projection on the underlay substrate, and the vertical range between shading graph at least part and the underlay substrate is greater than the vertical range between the colored filter and the underlay substrate.The shading graph for protruding from colored filter is arranged in the present invention on display base plate, the shading graph can block the display light of a part of other lateral pixels for the corresponding pixel region of colored filter, so that user is when strabismus shows picture, light leakage phenomena out can not be discovered, and efficiently solve the problems, such as the colour contamination of display picture.
Description
Technical field
The present invention relates to field of display technology, a kind of display base plate, display panel, display device and production side are particularly related to
Method.
Background technique
As liquid crystal display develops to the high direction PPI, the size between pixel is made smaller and smaller, this to be used for
The width for blocking the black matrix in gap between pixel will also become smaller therewith.And the width of black matrix becomes smaller, and certainly will influence whether black
The support strength of matrix, so that height will also become smaller therewith.
With reference to Fig. 1, Fig. 1 is the partial structural diagram of existing liquid crystal display panel, in the black matrix (black in Fig. 1
Rectangle) in the case where insufficient height, the display light in one part of pixel region can according to direction shown in arrow in Fig. 1 it is oblique its
Colorized optical filtering region corresponding to his pixel, to make to show that colour contamination and light leakage phenomena occurs in picture.
Illustratively, it is assumed that when strabismus observation liquid crystal display red, green, blue pure color picture (such as pure red picture, it is red
Pixel is opened, and green and blue pixel is to close), it can be appreciated that other adjacent pixels leak out variegated light, seriously affect pure color
The display quality of picture.
Summary of the invention
Present invention aim to address the colour contamination phenomenons that existing display device occurs.
To achieve the above object, on the one hand, the embodiment of the present invention provides a kind of display base plate, including underlay substrate, shape
At the colored filter and black matrix on the underlay substrate, the display base plate further include:
Shading graph, orthographic projection of the shading graph on the underlay substrate fall into the black matrix in the substrate
In orthographic projection on substrate, and the vertical range between shading graph at least part and the underlay substrate is greater than described
Vertical range between colored filter and the underlay substrate.
Further, the shading graph include: the first sub- shading graph stacked gradually, the second sub- shading graph and
The sub- shading graph of third, the colored filter include blue color filter, green color filter and Red lightscreening plate；
The first sub- shading graph is identical as the material of green color filter in the colored filter, second son
Shading graph is identical as the material of Red lightscreening plate in the colored filter, the sub- shading graph of third and the colour
The material of blue color filter in optical filter is identical.
Further, the thickness of the described first sub- shading graph is greater than the thickness of the described second sub- shading graph, and described the
The thickness of two sub- shading graphs is greater than the thickness of the sub- shading graph of the third.
Further, the described first sub- shading graph with a thickness of 1.0 μm to 1.7 μm, the second sub- shading graph with
And the thickness range of the sub- shading graph of third is 0.3 μm to 0.5 μm.
Further, orthographic projection of the shading graph on the underlay substrate and the black matrix are in the substrate base
Orthographic projection on plate is overlapped.
On the other hand, the present invention also provides a kind of production methods of display base plate, are included in underlay substrate and form black matrix
And the step of colored filter, further includes:
The step of forming shading graph；Wherein, the shading graph falls into the black square in the projection of the underlay substrate
In battle array projects on the underlay substrate, and the vertical range between shading graph at least part and the underlay substrate
Greater than the vertical range between the colored filter and the underlay substrate.
Further, the colored filter includes blue color filter, green color filter and Red lightscreening plate；
Include: in the step of forming shading graph in the black matrix
One layer of green photoresist layer is deposited on the underlay substrate for be formed with black matrix, forms blue by a patterning processes
Optical filter and the first sub- shading graph；
One layer of red photoresist layer is deposited, forms Red lightscreening plate and the second sub- shading graph by a patterning processes；
Blue layer photoresist layer is deposited, forms green color filter and the sub- shading graph of third by a patterning processes.
Further, the thickness model of the red photoresist layer made of the blue light resistance layer made of deposition and deposition
Enclosing is 0.3 μm to 0.5 μm, made of deposition it is described green photoresist layer with a thickness of 1.0 μm to 1.7 μm.
In addition, the present invention also provides a kind of display device, including above-mentioned display base plate.
In addition, the present invention also provides a kind of display device, the display base plate including the production of above-mentioned production method.
Above scheme of the invention has the following beneficial effects:
The shading graph for protruding from colored filter is arranged in the present invention on display base plate, which can be colour
The corresponding pixel region of optical filter blocks the display light of a part of other lateral pixels, goes out to effectively solve display picture
Existing colour contamination phenomenon.
Detailed description of the invention
Fig. 1 is the partial schematic diagram of existing display base plate；
Fig. 2 and Fig. 3 is the structural schematic diagram of display base plate of the invention；
Fig. 4 A- Fig. 4 D is the process structure schematic diagram of the production method of display base plate of the invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
It is easy to appear colour contamination phenomenon for existing display device, 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；
The colored filter 2 and black matrix 3 being formed on underlay substrate 1；
Shading graph 4, the shading graph 4 fall into black matrix 3 on underlay substrate 1 in the orthographic projection on underlay substrate 1
In orthographic projection (such as: orthographic projection of the shading graph on underlay substrate is overlapped with orthographic projection of the black matrix on underlay substrate),
And the vertical range between 4 at least part of shading graph and underlay substrate 1 is greater than between colored filter 2 and underlay substrate 1
Vertical range so that shading graph 4 is formed with segment difference with respect to colored filter 2.
Obviously, from figure 2 it can be seen that shading graph of the invention is due to being convexly equipped in colored filter, can be
The corresponding pixel region of colored filter blocks the display light of a part of other lateral pixels, to effectively solve 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 21,22 and of Red lightscreening plate
Blue color filter 23.The present embodiment shading graph includes: the first sub- shading graph 41, the second sub- shading graph 42 stacked gradually
And (the i.e. first sub- shading graph 41 is compared to the second sub- shading graph 42 and the sub- shading graph of third for the sub- shading graph 43 of third
43 closer to black matrix 3).
Wherein, the first sub- shading graph 41 is identical as the material of green color filter 21 in colored filter, and the second son hides
Light figure 42 is identical as the material of Red lightscreening plate 22 in colored filter, in the sub- shading graph 43 of third and colored filter
Blue color filter 23 material it is identical.
Obviously, it is designed based on structure shown in Fig. 3, the shading graph of the present embodiment has been multiplexed the structure of existing colored filter
Figure technique, to not add the cost of manufacture of display base plate additionally.Meanwhile in the prior art, the white light for showing picture is by red
Light, green light, blue light are combined, and colorized optical filtering itself is exactly the function for filtering red, green, blue three basic coloured light lines
Figure layer, therefore be suitable for blocking figure required by the present embodiment.
Further, white brightness=feux rouges brightness+green light brightness+blue light brightness of picture is shown.Under normal circumstances, red
Influence ratio of the brightness to white brightness is 20%, and influence ratio of the green light brightness to white brightness is 70%, blue light brightness
Influence ratio to white brightness is 10%.
Assuming that the pixel shows that solid color is a0 when single pixel is opened.When there is colour contamination display, the pixel is indicated
The light of other adjacent pixels (assuming that color is a1) is leaked out, i.e. the light of a1 pixel interferes with a0 pixel, at this time a0 pixel
The color of actual displayed is a2, and a2 has differences with theoretical color a0.
Since a2 color is mixed by a0 and a1, if adjacent a1 pixel light leakage brightness is bright with respect to a0 pixel bigger,
A2 and a0 color difference are bigger, and colour contamination is more serious.
Therefore, the influence ratio based on above-mentioned three colour brightness of red, green, blue to white brightness can be seen that when a0=red,
When a1=blue, colour contamination phenomenon is lighter；When a1=green, colour contamination phenomenon is serious；When a0=green, a1=red, colour contamination
Phenomenon is lighter；When a1=blue, colour contamination phenomenon is lighter；When a0=blue, a1=is red, and colour contamination phenomenon is lighter；When a1=is green
Color, colour contamination phenomenon are serious.
Obviously, green is than red, blue is higher to colour contamination influence degree, therefore the pixel of red, blue dichromatism is easier by phase
Colour contamination phenomenon occurs for the influence of adjacent green pixel.Therefore the present embodiment, guaranteeing that shading graph plays the premise of shaded effect
Under, increase the thickness of the first sub- shading graph layer as far as possible, by described above it is recognised that the first sub- shading graph is by green
Coloured light resistance layer is made, and can effectively filter green light.
As exemplary introduction, the thickness of the thickness of the sub- shading graph of the first of the present embodiment less than the second sub- shading graph
Degree, the thickness of the second sub- shading graph are less than the thickness of the sub- shading graph of third.
Wherein preferably, the thickness range of the second of the present embodiment the sub- shading graph and the sub- shading graph of third
Be 0.3 μm to 0.5 μm, the first sub- shading graph with a thickness of 1.0 μm to 1.7 μm.It has been proved by practice that the first sub- shading graph,
Second sub- shading graph and the one or three shading graph use above-mentioned thickness design, can effectively block with horizontal direction in 45 °
To 60 ° of lateral light.And in the prior art, each independent pixel is exactly in 45 ° to 60 ° of display light with horizontal direction
It is easiest to influence other pixels in the corresponding region of colorized optical filtering on piece.
It is the introduction of the display base plate of the present embodiment above, it can be seen that the shading graph of the present embodiment is by existing black
Matrix is responsible for blocking, therefore not will increase the void area between pixel region；Secondly, the shading graph of the present embodiment can be with
It completes together with colored filter, does not occupy individual patterning processes additionally.It can be seen that the present embodiment can be not
Under the premise of reducing aperture opening ratio and increasing cost of manufacture, crosstalk phenomenon is solved, therefore there is very high use value.
Further, the lateral light of the present embodiment is blocked due to not needing by black matrix, so being not required for black matrix tool
There are enough areas so that bigger height is made.In practical applications, more small area can be made in the black matrix of the present embodiment, from
And the aperture opening ratio of display base plate is got a promotion.
Furthermore, it is necessary to be described, the display panel of existing display device includes array substrate and is used for and battle array
Column substrate is to box to box substrate (such as color membrane substrates).Wherein, black matrix and colored filter can be set in array substrate
On, it also can be set on to box substrate, therefore the display base plate of the present embodiment is in practical applications, can refer to array base
Plate may also mean that box substrate.In addition, being given for example only property of implementation above mode introduces the structure of display base plate, wherein the
One sub- shading graph, the second sub- shading graph and the sub- shading graph of third can arbitrarily with 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 green filter of black matrix
Piece is made for same material can preferably limit the influence of green light bring colour contamination.
On the other hand, the structure design based on above-mentioned display base plate, another embodiment of the present invention also provide a kind of this and show
Show the production method of substrate, comprising:
In the step of underlay substrate forms black matrix and colored filter；And
The step of forming shading graph；Wherein, shading graph falls into black matrix in underlay substrate in the projection of underlay substrate
In upper projection, and shading graph at least part underlay substrate between vertical range be greater than the colored filter with it is described
Vertical range between underlay substrate.
Specifically, the present embodiment colored filter includes blue color filter, green color filter and Red lightscreening plate；
It is specifically included in the step of forming shading graph in black matrix:
One layer of green photoresist layer is deposited on the underlay substrate for be formed with black matrix, forms blue by a patterning processes
Optical filter and the first sub- shading graph；
One layer of red photoresist layer is deposited, forms Red lightscreening plate and the second sub- shading graph by a patterning processes；
Blue layer photoresist layer is deposited, forms green color filter and the sub- shading graph of third by a patterning processes.
Preferably, under the premise of shading graph finite thickness, the thickness of the sub- shading graph of the third 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.
Illustratively, red made of the blue light resistance layer made of deposition and deposition in above-mentioned steps 31- step 33
The thickness range of coloured light resistance layer be 0.3 μm to 0.5 μm, made of deposition it is described green photoresist layer with a thickness of 1.0 μm to 1.7 μ
m。
Exemplary introduction is carried out to the process of the production method of the present embodiment below.
The production method of the present embodiment includes:
As shown in Figure 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, the figure 401 of blue photoresist layer is formed in underlay substrate 1；
As shown in Figure 4 C, by third patterning processes, the figure 402 of upper red photoresist layer is formed in underlay substrate 1；
As shown in Figure 4 D, by the 4th patterning processes, the figure 403 of blue photoresist layer is formed in underlay substrate 1.It can be with
Find out, after the completion of four patterning processes, that is, is corresponded to display base plate shown in Fig. 3.
It should be pointed out that above being given for example only property of the process introduction is the invention shows the production method of substrate, and unlimited
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 sub- shading graph of third can be any one of blue light resistance layer, red photoresist layer and green photoresist layer.But make
For preferred embodiment, the corresponding patterning processes of green photoresist layer should blue light resistance layer, red photoresist layer patterning processes before, from
And guarantee that the first sub- shading graph of display base plate is that green photoresist layer is formed, so that shading graph is integrally to green light
With better blocking effect, it is relatively beneficial to reduce colour contamination phenomenon.
Obviously, production method through this embodiment can produce the display base plate of an embodiment in the present invention, therefore
The display base plate of the production method of the present embodiment and a upper embodiment is able to achieve identical technical effect.
In addition, the present invention also provides a kind of display panel and display devices, wherein display base plate includes above-mentioned display base
Plate, display device include the display panel.The structure of display base plate based on the present embodiment designs, display panel of the invention and
Display device reduces crosstalk phenomenon on display picture, therefore higher viewing experience effect can be brought to user.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of display base plate, including underlay substrate, the colored filter being formed on the underlay substrate and black matrix,
It is characterized in that, the display base plate further include:
Shading graph, orthographic projection of the shading graph on the underlay substrate fall into the black matrix in the underlay substrate
On orthographic projection in, and the shading graph at least part the underlay substrate between vertical range be greater than the colour
Vertical range between optical filter and the underlay substrate；
The shading graph includes: the first sub- shading graph stacked gradually, the second sub- shading graph and the sub- shading figure of third
Shape, the colored filter include blue color filter, green color filter and Red lightscreening plate；
The first sub- shading graph is identical as the material of green color filter in the colored filter, the second sub- shading
Figure is identical as the material of Red lightscreening plate in the colored filter, the sub- shading graph of third and the colorized optical filtering
The material of blue color filter in piece is identical；
The thickness of the first sub- shading graph is greater than the thickness of the described second sub- shading graph, the second sub- shading graph
Thickness be greater than the sub- shading graph of the third thickness, the first sub- shading graph with a thickness of 1.0 μm to 1.7 μm.
2. display base plate according to claim 1, which is characterized in that
The shading graph is in the orthographic projection and orthographic projection of the black matrix on the underlay substrate on the underlay substrate
It is overlapped.
3. a kind of production method of display base plate is included in for making such as described in any item display base plates of claim 1-2
Underlay substrate forms the step of black matrix and colored filter, which is characterized in that further include:
The step of forming shading graph；Wherein, the shading graph falls into the black matrix in the projection of the underlay substrate and exists
On the underlay substrate in projection, and the vertical range between shading graph at least part and the underlay substrate is greater than
Vertical range between the colored filter and the underlay substrate.
4. production method according to claim 3, which is characterized in that the colored filter includes blue color filter, green
Colo(u)r filter and Red lightscreening plate；
Include: in the step of forming shading graph in the black matrix
One layer of green photoresist layer is deposited on the underlay substrate for be formed with black matrix, forms green filter by a patterning processes
Piece and the first sub- shading graph；
One layer of red photoresist layer is deposited, forms Red lightscreening plate and the second sub- shading graph by a patterning processes；
Blue layer photoresist layer is deposited, forms blue color filter and the sub- shading graph of third by a patterning processes.
5. production method according to claim 4, which is characterized in that
The thickness range of the red photoresist layer made of the blue light resistance layer made of deposition and deposition be 0.3 μm extremely
0.5 μm, made of deposition it is described green photoresist layer with a thickness of 1.0 μm to 1.7 μm.
6. a kind of display device, which is characterized in that including such as described in any item display base plates of claim 1-2.
7. a kind of display device, which is characterized in that the display base plate including the production of any one of such as claim 3-5 production method.
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| US10345638B2 (en) | 2017-08-01 | 2019-07-09 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Display panel and display device |
| CN107219674B (en) * | 2017-08-01 | 2020-02-14 | 深圳市华星光电技术有限公司 | Display panel and display device |
| WO2019044172A1 (en) * | 2017-08-29 | 2019-03-07 | ソニーセミコンダクタソリューションズ株式会社 | Imaging device and method for producing imaging device |
| CN110161739B (en) * | 2019-06-19 | 2022-09-16 | 厦门天马微电子有限公司 | Display panel and display device |
| CN110275341B (en) * | 2019-06-28 | 2022-04-12 | 厦门天马微电子有限公司 | Display panel and display device |
| CN110618555B (en) * | 2019-09-26 | 2022-07-29 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
| CN112230465B (en) * | 2020-10-29 | 2022-11-04 | 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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| CN106094317A (en) * | 2015-04-30 | 2016-11-09 | 三星显示有限公司 | Display floater |
| CN206178292U (en) * | 2016-11-11 | 2017-05-17 | 合肥京东方光电科技有限公司 | Display substrate, display panel and display device |
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| KR102224348B1 (en) * | 2014-09-22 | 2021-03-09 | 엘지디스플레이 주식회사 | Liquid crystal display panel and method of manufacturing the same |
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| CN106094317A (en) * | 2015-04-30 | 2016-11-09 | 三星显示有限公司 | Display floater |
| CN206178292U (en) * | 2016-11-11 | 2017-05-17 | 合肥京东方光电科技有限公司 | Display substrate, display panel and display device |
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