CN105319631A - Color filter substrate and display panel - Google Patents
Color filter substrate and display panel Download PDFInfo
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- CN105319631A CN105319631A CN201410322784.XA CN201410322784A CN105319631A CN 105319631 A CN105319631 A CN 105319631A CN 201410322784 A CN201410322784 A CN 201410322784A CN 105319631 A CN105319631 A CN 105319631A
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- chromatic filter
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Abstract
The invention discloses a color filter substrate and a display panel. The color filter substrate comprises a base material which is provided with a surface; a light-shading layer which is arranged on the surface; a first color filtering layer which is arranged on the surface and covers a part of the light-shading layer; and a second color filtering layer which is arranged on the surface and covers a part of the light-shading layer and a part of the first color filtering layer. The light-shading layer is arranged between the first color filtering layer and the second color filtering layer, and the light-shading layer is provided with a first side wall which is contacted with the first color filtering layer. A first inclined angle is arranged between the first side wall and the surface. The light-shading layer is provided with a second side wall which is contacted with the second color filtering layer. A second inclined angle is arranged between the second side wall and the surface, wherein the second inclined angle is smaller than the first inclined angle.
Description
Technical field
The present invention relates to display panel, and particularly relate to the colored optical filtering substrates of display panel.
Background technology
Liquid crystal indicator, because it is frivolous and the advantage such as low power consumption, has become current main-stream display device.Liquid crystal indicator comprises a display panels.Display panels comprises thin film transistor (TFT) (ThinFilmTransistor, a TFT) substrate, colorized optical filtering (ColorFilter, a CF) substrate and is folded in liquid crystal layer between two substrates.
Colored optical filtering substrates has a substrate and and is formed at chromatic filter layer on substrate, chromatic filter layer by multiple redness, green, blue colour element and by its etc. the black matrix that separates formed.Black matrix has and prevents light to be irradiated to thin film transistor (TFT) (it can be made to leak electricity when light is irradiated to thin film transistor (TFT) and causes image quality to be deteriorated), to prevent adjacent colour element colour mixture, to promote the effects such as contrast.
Along with liquid crystal indicator is towards slimming and the future development improving transmittance, current industry needs a kind of method reducing the thickness of colored optical filtering substrates badly.
Summary of the invention
For solving the problem, one embodiment of the invention provides a kind of colored optical filtering substrates, comprising: a base material, has a surface; One light shield layer, is positioned on the surface; One first chromatic filter layer, is positioned on the surface, the first chromatic filter layer cover part light shield layer; And one second chromatic filter layer, be positioned on the surface, second chromatic filter layer cover part light shield layer and part first chromatic filter layer, wherein light shield layer is between the first chromatic filter layer and the second chromatic filter layer, and light shield layer has a first side wall contacts the first chromatic filter layer, one first angle is accompanied between the first side wall and the surface of base material, light shield layer has one second sidewall contact second chromatic filter layer, accompany one second angle between second sidewall and the surface of base material, wherein the second angle is less than the first angle.
One embodiment of the invention provides a kind of colored optical filtering substrates, comprising: a base material, has a surface; One light shield layer, is positioned on the surface; One first chromatic filter layer, is positioned on the surface, the first chromatic filter layer cover part light shield layer; And one second chromatic filter layer, be positioned on the surface, second chromatic filter layer cover part light shield layer and part first chromatic filter layer, wherein light shield layer is between the first chromatic filter layer and the second chromatic filter layer, and light shield layer has a first side wall contacts the first chromatic filter layer, one first angle is accompanied between the first side wall and the surface of base material, light shield layer has one second sidewall contact second chromatic filter layer, accompany one second angle between second sidewall and the surface of base material, wherein the difference of the first angle and the second angle is about 3.5 ° to 20 °.
One embodiment of the invention provides a kind of colored optical filtering substrates, comprising: a base material, has a surface, one light shield layer, is positioned on the surface, and light shield layer has a maximum height, and a predetermined altitude is the half of maximum height, one first chromatic filter layer, is positioned on the surface, the first chromatic filter layer cover part light shield layer, and one second chromatic filter layer, be positioned on the surface, second chromatic filter layer cover part light shield layer and part first chromatic filter layer, wherein, light shield layer is between the first chromatic filter layer and the second chromatic filter layer, light shield layer has a first side wall and contacts the first chromatic filter layer, the first side wall has one first tangent line in predetermined altitude, one first angle is accompanied between first tangent line and the surface of base material, light shield layer has one second sidewall contact second chromatic filter layer, second sidewall has one second tangent line in predetermined altitude, one second angle is accompanied between second tangent line and the surface of base material, second angle is less than the first angle.
One embodiment of the invention provides a kind of display panel, comprising: a colored optical filtering substrates; One subtend substrate, is oppositely arranged with colored optical filtering substrates; And a display medium, be formed between colored optical filtering substrates and subtend substrate.
Accompanying drawing explanation
Fig. 1 is the cut-open view of a colored optical filtering substrates of one embodiment of the invention;
Fig. 2 is the enlarged drawing of the region A of Fig. 1;
Fig. 3 is the partial enlarged drawing of a colored optical filtering substrates of another embodiment of the present invention;
Fig. 4 is the cut-open view of a colored optical filtering substrates of further embodiment of this invention;
Fig. 5 is the cut-open view of a display panel of one embodiment of the invention.
Symbol description
100,400 colored optical filtering substrates
110 base materials
112 surfaces
120,120a light shield layer
122 the first side walls
122a the 3rd sidewall
124 second sidewalls
124a the 4th sidewall
126 summits
128a Part I
128b Part II
130 first chromatic filter layers
132 first main bodys
134 first extensions
140 second chromatic filter layers
142 second main bodys
144 second extensions
150 the 3rd chromatic filter layers
152 the 3rd main bodys
154 the 3rd extensions
160 flatness layers
162 first districts
164 second districts
166 the 3rd districts
500 display panels
510 colored optical filtering substrates
520 subtend substrates
530 display mediums
A-quadrant
C1 first tangent line
C2 second tangent line
F, F1 interface
H maximum height
H predetermined altitude
L vertical line
T1, T2, T3, T4, T5 thickness
W1, W2 width
θ 1 first angle
θ 11 first angle
θ 2 second angle
θ 22 second angle
θ 3 the 3rd angle
θ 4 the 4th angle
Embodiment
Making and the use-pattern of the embodiment of the present invention will be described in detail below.It should be noted, the invention provides many inventive concepts for application, it can multiple specific pattern be implemented.In literary composition illustrate discuss specific embodiment be only manufacture with use ad hoc fashion of the present invention, be not used to limit the scope of the invention.In addition, label or the sign of repetition may be used in different embodiments.These repeat only clearly to describe the present invention in order to simple, do not represent between discussed different embodiment and/or structure and have any relevance.Moreover, when address one first material layer to be positioned on one second material layer or on time, comprise the first material layer directly contacted or to be separated with one or more other materials layer situation with the second material layer.In the accompanying drawings, the shape of embodiment or thickness may expand, to simplify or to highlight its feature.Moreover the element not illustrating in figure or describe, can be in art the arbitrary form having and usually know known to the knowledgeable.
Fig. 1 illustrates the cut-open view of a colored optical filtering substrates 100 of one embodiment of the invention.Fig. 2 illustrates the enlarged drawing of the region A of Fig. 1.Referring to this case Fig. 1, Fig. 2, the colored optical filtering substrates 100 of the present embodiment comprises base material 110, light shield layer 120,1 first chromatic filter layer 130 and one second chromatic filter layer 140.
Specifically, base material 110 has a surface 112.Light shield layer 120 is positioned on the surface 112 of base material 110.First chromatic filter layer 130 to be positioned on base material 110 and cover part light shield layer 120.The material of the first chromatic filter layer 130 is such as photo anti-corrosion agent material.First chromatic filter layer 130 is such as photo anti-corrosion agent material that is blue, red or green.
Second chromatic filter layer 140 to be positioned on base material 110 and cover part light shield layer 120 and part first chromatic filter layer 130.The material of the second chromatic filter layer 140 is such as photo anti-corrosion agent material.Second chromatic filter layer 140 is such as photo anti-corrosion agent material that is blue, red or green.
Light shield layer 120 is between the first chromatic filter layer 130 and the second chromatic filter layer 140.Light shield layer 120 has a first side wall 122 and contacts the first chromatic filter layer 130.One first angle θ 1 is accompanied between the surface 112 of the first side wall 122 and base material 110.
Light shield layer 120 has one second sidewall 124 and contacts the second chromatic filter layer 140.One second angle θ 2 is accompanied between second sidewall 124 and the surface 112 of base material 110.Second angle θ 2 is less than the first angle θ 1.In one embodiment, the first angle θ 1 and the second angle θ 2 is acute angle.First angle θ 1 is such as about 40 ° to 75 °.Second angle θ 2 is such as about 30 ° to 65 °.The difference of the first angle θ 1 and the second angle θ 2 is such as about 3.5 ° to 20 °.
Specifically, in the present embodiment, the first chromatic filter layer 130 has first main body 132 and be positioned on base material 110 and is positioned at the first extension 134 on light shield layer 120.Second chromatic filter layer 140 has second main body 142 and be positioned on base material 110 and is positioned at the second extension 144 on light shield layer 120.Light shield layer 120 is between the first main body 132 and the second main body 142, and the first side wall 122 is towards the first main body 132, second sidewall 124 towards the second main body 142.
In the present embodiment, light shield layer 120 has a summit 126, and summit 126 is positioned at light shield layer 120 maximum height place.The first side wall 122 is positioned at one through summit 126 and perpendicular to the side of vertical line L on surface 112, and the second sidewall 124 is positioned at the opposite side of vertical line L.In the present embodiment, the first chromatic filter layer 130 covers the first side wall 122 and extend through summit 126.Specifically, the first chromatic filter layer 130 covers the first side wall 122 and part second sidewall 124 simultaneously.
In the present embodiment, light shield layer 120 comprises a photo anti-corrosion agent material (such as the photo anti-corrosion agent material of a black).In the present embodiment, the photomask that can utilize shadow tone (half-tone) photomask or have a specific pattern carries out an exposure imaging manufacture craft to form the light shield layer 120 with the different sidewall of two slopes to a light-shielding material layers (not illustrating).Or, asymmetric pattern can be formed (such as in the both sides of light shield layer 120, side is flat, opposite side indentation, do not illustrate), afterwards, then heating is carried out to light shield layer 120 make it reflux (reflow) and form the different sidewall of two slopes (122,124).
In the present embodiment, the second chromatic filter layer 140 covers the second sidewall 124 and extend through summit 126.Specifically, the second chromatic filter layer 140 covers the second sidewall 124 and part the first side wall 122 simultaneously.In the present embodiment, the second chromatic filter layer 140 partly overlaps the first chromatic filter layer 130, and the second chromatic filter layer 140 part overlapping with the first chromatic filter layer 130 is be positioned on the second sidewall 124 substantially.
In one embodiment, the part that the second chromatic filter layer 140 and the first chromatic filter layer 130 overlap each other has an interface F, and interface F is greater than 0 relative to the slope on surface 112, and the second chromatic filter layer 140 is positioned at the left side of light shield layer 120.It should be noted that the first chromatic filter layer 130 of the present invention and the second chromatic filter layer 140 are not limited to the arrangement mode shown in Fig. 1, Fig. 2 relative to the arrangement mode of light shield layer 120.
For example, as shown in Figure 3, in another embodiment, the part that the second chromatic filter layer 140 and the first chromatic filter layer 130 overlap each other has an interface F1, interface F1 is less than 0 relative to the slope on surface 112, and the second chromatic filter layer 140 is positioned at the right side of light shield layer 120.
Please referring again to Fig. 1, Fig. 2, in one embodiment, colored optical filtering substrates 100 also comprises one the 3rd chromatic filter layer 150.3rd chromatic filter layer 150 is configured on the surface 112 of base material 110, and a light shield layer 120a is between the first chromatic filter layer 130 and the 3rd chromatic filter layer 150.The material of the 3rd chromatic filter layer 150 is such as photo anti-corrosion agent material.3rd chromatic filter layer 150 is such as photo anti-corrosion agent material that is blue, red or green.In one embodiment, the first chromatic filter layer 130, second chromatic filter layer 140 and the 3rd chromatic filter layer 150 can have different colors.
3rd chromatic filter layer 150 has the 3rd main body 152 and be positioned on base material 110 and is positioned at the 3rd extension 154 on light shield layer 120a.Light shield layer 120a has one towards the 3rd sidewall 122a and of the first main body 132 towards the 4th sidewall 124a of the 3rd main body 152.In the present embodiment, the 3rd chromatic filter layer 150 cover part first chromatic filter layer 130.
One the 3rd angle θ 3 is accompanied between 3rd sidewall 122a and the surface 112 of base material 110.One the 4th angle θ 4 is accompanied between 4th sidewall 124a and the surface 112 of base material 110.4th angle θ 4 is less than the 3rd angle θ 3.In one embodiment, the 3rd angle θ 3 and the 4th angle θ 4 is acute angle.3rd angle θ 3 is such as about 40 ° to 75 °.4th angle θ 4 is such as about 30 ° to 65 °.The difference of the 3rd angle θ 3 and the 4th angle θ 4 is such as about 3.5 ° to 20 °.
In one embodiment, colored optical filtering substrates 100 also comprises a flatness layer 160.Flatness layer 160 is positioned on the first chromatic filter layer 130 and the second chromatic filter layer 140.In one embodiment, flatness layer 160 is more positioned on the 3rd chromatic filter layer 150.
Flatness layer 160 affects follow-up display medium formed thereon (such as liquid crystal molecule) in order to form a smooth surface on the first chromatic filter layer 130, second chromatic filter layer 140 and the 3rd chromatic filter layer 150 to avoid the projection of chromatic filter layer.Therefore, if the protruding amplitude of chromatic filter layer is less, then the thickness of flatness layer 160 is less.
In one embodiment, flatness layer 160 has one first district 162 and one second district 164.First district 162 is positioned in the first main body 132 of the first chromatic filter layer 130.Second district 164 is positioned in the second main body 142 of the second chromatic filter layer 140.In one embodiment, the thickness T4 of the second main body 142 of the second chromatic filter layer 140 is greater than the thickness T3 of the first main body 132 of the first chromatic filter layer 130.The thickness T2 in the second district 164 is less than the thickness T1 in the first district 162.
In the present embodiment, the thickness T5 that flatness layer 160 also has the 3rd district 166 of district the 166, three that is positioned in part that the first chromatic filter layer 130 and the second chromatic filter layer 140 overlap each other is less than the thickness T2 in the second district 164.
It should be noted that the second angle θ 2 due to the present embodiment is less than the first angle θ 1, therefore, the slope absolute value of the second sidewall 124 is less than the slope absolute value of the first side wall 122.In addition, the average thickness of one Part II 128b of formation second sidewall 124 of light shield layer 120 (that is, the sectional area of Part II 128b is divided by the width W 2 of Part II 128b) be also less than the average thickness (that is the sectional area of Part I 128a is divided by width W 1 of Part I 128a) of a Part I 128a of the formation the first side wall 122 of light shield layer 120.
Because the average thickness of the Part II 128b of formation second sidewall 124 of light shield layer 120 is less, therefore, partial configuration overlapping with the first chromatic filter layer 130 for second chromatic filter layer 140 effectively can be reduced on the second sidewall 124 height of the second chromatic filter layer 140 part overlapping with the first chromatic filter layer 130, and then effectively can reduce the thickness of flatness layer 160.The thickness of flatness layer 160 reduces the transmittance that effectively can promote colored optical filtering substrates 100.
Fig. 4 illustrates the cut-open view of a colored optical filtering substrates 400 of further embodiment of this invention.As shown in Figure 4, the colored optical filtering substrates 400 of the present embodiment is similar in appearance to the colored optical filtering substrates 100 shown in Fig. 1, and both difference are by details are as follows.
The light shield layer 120 of colored optical filtering substrates 400 has a maximum height H, and a predetermined altitude h is the half of maximum height H.The first side wall 122 of light shield layer 120 has one first tangent line C1 in predetermined altitude h.One first angle theta 11 is accompanied between first tangent line C1 and the surface 112 of base material 110.Second sidewall 124 of light shield layer 120 has one second tangent line C2 in predetermined altitude h.One second angle theta 22 is accompanied between second tangent line C2 and the surface 112 of base material 110.Second angle theta 22 is less than the first angle theta 11.
In one embodiment, the first angle theta 11 and the second angle theta 22 are all acute angle.First angle theta 11 is such as about 40 ° to 75 °.Second angle theta 22 is such as about 30 ° to 65 °.The difference of the first angle theta 11 and the second angle theta 22 is such as about 3.5 ° to 20 °.
Fig. 5 illustrates the cut-open view of a display panel 500 of one embodiment of the invention.The display panel 500 of the present embodiment comprises colored optical filtering substrates 510, subtend substrate 520 and a display medium 530.Subtend substrate 520 and colored optical filtering substrates 510 are oppositely arranged.Display medium 530 is formed between colored optical filtering substrates 510 and subtend substrate 520.
Colored optical filtering substrates 510 can be the colored optical filtering substrates shown in earlier figures 1 ~ Fig. 4.Subtend substrate 520 can be a thin film transistor base plate or a transparency carrier.Display medium 530 can be liquid crystal layer or organic luminous layer.
In sum, the light shield layer of the colored optical filtering substrates of the present embodiment has the two side accompanying different angles between the surface of substrate, and the two-part average thickness of this two side of formation of light shield layer is not identical.Therefore, effectively to reduce the height of the lap of the second chromatic filter layer and the first chromatic filter layer on the configurable sidewall formed in the part less by average thickness of the part of the second chromatic filter layer and the first colorized optical filtering ply, and then effectively can reduce the thickness of flatness layer.The thickness of flatness layer reduces the transmittance that effectively can promote colored optical filtering substrates.
Though the present invention with preferred embodiment openly as above; but itself and be not used to limit scope of the present invention; have in any art and usually know the knowledgeable; without departing from the spirit and scope of the present invention; can do a little change and retouching, what therefore protection scope of the present invention should define with the claim of enclosing is as the criterion.
Claims (15)
1. a colored optical filtering substrates, comprising:
Base material, has a surface;
Light shield layer, is positioned at this on the surface;
First chromatic filter layer, is positioned at this on the surface, this this light shield layer of the first chromatic filter layer cover part; And
Second chromatic filter layer, is positioned at this on the surface, this this light shield layer of the second chromatic filter layer cover part and this first chromatic filter layer of part,
Wherein this light shield layer is between this first chromatic filter layer and this second chromatic filter layer, and this light shield layer has the first side wall, contact this first chromatic filter layer, one first angle is accompanied between this first side wall and this surface, this light shield layer has the second sidewall, contact this second chromatic filter layer, accompany one second angle between this second sidewall and this surface, wherein this second angle is less than this first angle.
2. colored optical filtering substrates as claimed in claim 1, wherein this light shield layer has a summit, and this first side wall is positioned at the side of a vertical line through this summit and perpendicular to this surface, and this second sidewall is positioned at the opposite side of this vertical line.
3. colored optical filtering substrates as claimed in claim 2, wherein this first chromatic filter layer covers this first side wall and this summit of extend through.
4. colored optical filtering substrates as claimed in claim 2, wherein this second chromatic filter layer covers this second sidewall and this summit of extend through.
5. colored optical filtering substrates as claimed in claim 1, wherein this first chromatic filter layer has the first main body be positioned on this base material and the first extension be positioned on this light shield layer, this second chromatic filter layer has the second main body be positioned on this base material and the second extension be positioned on this light shield layer, and this light shield layer is between this first main body and this second main body, this the first side wall is towards this first main body, and this second sidewall is towards this second main body.
6. colored optical filtering substrates as claimed in claim 1, the part that wherein this second chromatic filter layer and this first chromatic filter layer overlap each other has an interface, this interface is greater than 0 relative to the slope on this surface, and this second chromatic filter layer is positioned at the left side of this light shield layer.
7. colored optical filtering substrates as claimed in claim 1, the part that wherein this second chromatic filter layer and this first chromatic filter layer overlap each other has an interface, this interface is less than 0 relative to the slope on this surface, and this second chromatic filter layer is positioned at the right side of this light shield layer.
8. colored optical filtering substrates as claimed in claim 1, also comprises:
Flatness layer, be positioned on this first chromatic filter layer and this second chromatic filter layer, wherein this flatness layer has the firstth district be positioned on this first chromatic filter layer and the secondth district be positioned on this second chromatic filter layer, and the thickness in this secondth district is less than the thickness in this firstth district.
9. colored optical filtering substrates as claimed in claim 8, wherein this flatness layer also has the 3rd district be positioned in part that this first chromatic filter layer and this second chromatic filter layer overlap each other, and the thickness in the 3rd district is less than the thickness in this secondth district.
10. colored optical filtering substrates as claimed in claim 1, wherein this first angle and this second angle are all acute angle.
11. colored optical filtering substrates as claimed in claim 10, wherein this first angle is about 40 ° to 75 °.
12. colored optical filtering substrates as claimed in claim 10, wherein this second angle is about 30 ° to 65 °.
13. 1 kinds of colored optical filtering substrates, comprising:
Base material, has a surface;
Light shield layer, is positioned at this on the surface;
First chromatic filter layer, is positioned at this on the surface, this this light shield layer of the first chromatic filter layer cover part; And
Second chromatic filter layer, is positioned at this on the surface, this this light shield layer of the second chromatic filter layer cover part and this first chromatic filter layer of part,
Wherein this light shield layer is between this first chromatic filter layer and this second chromatic filter layer, and this light shield layer has the first side wall, contact this first chromatic filter layer, one first angle is accompanied between this surface of this first side wall and this base material, this light shield layer has the second sidewall, contact this second chromatic filter layer, accompany one second angle between this surface of this second sidewall and this base material, wherein the difference of this first angle and this second angle is about 3.5 ° to 20 °.
14. 1 kinds of colored optical filtering substrates, comprising:
Base material, has a surface;
Light shield layer, is positioned at this on the surface, and this light shield layer has a maximum height, and a predetermined altitude is the half of this maximum height;
First chromatic filter layer, is positioned at this on the surface, this this light shield layer of the first chromatic filter layer cover part; And
Second chromatic filter layer, is positioned at this on the surface, this this light shield layer of the second chromatic filter layer cover part and this first chromatic filter layer of part,
Wherein, this light shield layer is between this first chromatic filter layer and this second chromatic filter layer, this light shield layer has the first side wall, contact this first chromatic filter layer, this the first side wall has one first tangent line in this predetermined altitude, one first angle is accompanied between this surface of this first tangent line and this base material, this light shield layer has the second sidewall, contact this second chromatic filter layer, this second sidewall has one second tangent line in this predetermined altitude, accompany one second angle between this surface of this second tangent line and this base material, this second angle is less than this first angle.
15. 1 kinds of display panels, comprising:
Colored optical filtering substrates as described in claim 1,13 or 14;
Subtend substrate, is oppositely arranged with this colored optical filtering substrates; And
Display medium, is formed between this colored optical filtering substrates and this subtend substrate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410322784.XA CN105319631B (en) | 2014-07-08 | 2014-07-08 | Colored optical filtering substrates and display panel |
| CN201910019445.7A CN109581730B (en) | 2014-07-08 | 2014-07-08 | Color filter substrate and display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410322784.XA CN105319631B (en) | 2014-07-08 | 2014-07-08 | Colored optical filtering substrates and display panel |
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| CN201910019445.7A Division CN109581730B (en) | 2014-07-08 | 2014-07-08 | Color filter substrate and display panel |
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| CN105319631A true CN105319631A (en) | 2016-02-10 |
| CN105319631B CN105319631B (en) | 2019-02-01 |
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| CN201410322784.XA Active CN105319631B (en) | 2014-07-08 | 2014-07-08 | Colored optical filtering substrates and display panel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106932943A (en) * | 2017-04-21 | 2017-07-07 | 惠科股份有限公司 | Display panel and display device |
| CN108519700A (en) * | 2018-04-11 | 2018-09-11 | 深圳市华星光电技术有限公司 | Color membrane substrates and its manufacturing method |
| CN109613741A (en) * | 2019-01-11 | 2019-04-12 | 惠科股份有限公司 | Display panel and method for manufacturing the same |
| WO2020052066A1 (en) * | 2018-09-13 | 2020-03-19 | 惠科股份有限公司 | Display panel and display device |
| CN111352267A (en) * | 2020-04-14 | 2020-06-30 | Tcl华星光电技术有限公司 | Display panel |
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