CN103676299A - Color film substrate, display device and manufacturing method for color film substrate - Google Patents
Color film substrate, display device and manufacturing method for color film substrate Download PDFInfo
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- CN103676299A CN103676299A CN201310689126.XA CN201310689126A CN103676299A CN 103676299 A CN103676299 A CN 103676299A CN 201310689126 A CN201310689126 A CN 201310689126A CN 103676299 A CN103676299 A CN 103676299A
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- black matrix
- groove
- filtering units
- colored light
- membrane substrates
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Abstract
The invention provides a color film substrate, a display device and a manufacturing method for the color film substrate. The color film substrate comprises a substrate body and a plurality of color filtering units. The color filtering units are arranged on the substrate body at intervals. A black matrix is arranged between every two adjacent color filtering units. The color film substrate is characterized in that grooves are formed in the black matrixes, the black matrixes and the adjacent color filtering units are overlaid, and the overlaid areas extend to the grooves in the back matrixes. Due to the fact that the grooves are formed in the black matrixes on the color film substrate, and the overlaid areas of the black matrixes and the adjacent color filtering units extend to the grooves in the black matrixes, the angular differences between the black matrixes and the adjacent color filtering units can be effectively reduced, and the display quality is improved.
Description
Technical field
The present invention relates to demonstration field, relate in particular to the manufacture method of a kind of color membrane substrates, display device and color membrane substrates.
Background technology
Twisted-nematic (Twisted Nematic, TN) type liquid crystal display is a kind of common liquid crystal display, this kind of liquid crystal display mainly formed box by color membrane substrates and array base palte, wherein, the method for making of color membrane substrates as shown in Figure 1 to Figure 3, first on underlay substrate 1', form the figure of black matrix 2', and on underlay substrate 1', apply color blocking material 3', and by mask plate 4', it is carried out to exposure-processed, this mask plate 4' comprises light tight region 5' and peristome 6', ultraviolet light exposes on color blocking material by peristome 6', afterwards the underlay substrate 1' after exposure-processed is developed to toast and process, thereby make colored light-filtering units 8' and black matrix 2' be disposed on underlay substrate 1', wherein, in the color membrane substrates obtaining, the overlap joint region 7' of colored light-filtering units 8' and black matrix 2' forms angle section (PW), in order to improve TN(Twisted Nematic, twisted nematic) product quality, management needs with the poor Shi Ge great always of pilot angle section panel vendor the problem of considering in actual volume production, angle section is poor excessive, affect liquid crystal aligning (Rubbing) technique, liquid crystal reverses, LCD picture quality.At present, can improve angle section by the method that reduces black matrix thickness or improve the thickness of color blocking layer poor.But, reduce black matrix thickness, exist optical density (OD) to reduce, affect contrast, by the thick raising of color blocking tunic, there is the problem that transmitance is low.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: the angle section how reducing between black matrix in color membrane substrates and adjacent colored light-filtering units is poor.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of color membrane substrates, comprise underlay substrate and a plurality of colored light-filtering units, described a plurality of colored light-filtering units is disposed on described underlay substrate, between adjacent two colored light-filtering units, be also provided with black matrix, on described black matrix, be provided with groove, described black matrix and adjacent colored light-filtering units are overlapping, and described overlapping region extends to the groove on described black matrix.
Further, described groove is positioned at the middle part of described black matrix.
Further, the degree of depth of described groove is less than or equal to the thickness of described black matrix.
Further, the cross sectional shape of described groove is rectangle or trapezoidal.
For solving the problems of the technologies described above, the present invention also provides a kind of manufacture method of color membrane substrates, comprising:
On underlay substrate, form black matrix, on described black matrix, be provided with groove;
On described underlay substrate, form a plurality of spaced colored light-filtering units, make described black matrix between adjacent two colored light-filtering units, and described black matrix and adjacent colored light-filtering units are overlapping, and described overlapping region extends to the groove on described black matrix.
For solving the problems of the technologies described above, the present invention also provides a kind of display device, comprises array base palte and above-mentioned any one color membrane substrates.
Further, be provided with the data line relative with described black matrix on described array base palte, the groove of described black matrix and described data line are over against setting.
Further, the width of the groove of described black matrix is less than or equal to the width of described data line.
(3) beneficial effect
The present invention is by arranging groove on the black matrix on color membrane substrates, and make this black matrix and the overlapping region of adjacent colored light-filtering units extend to the groove of this black matrix, thereby can effectively reduce the differential seat angle between black matrix and adjacent colored light-filtering units, improve display quality.
Accompanying drawing explanation
Fig. 1～3rd, the schematic diagram of the manufacture color membrane substrates that prior art provides;
Fig. 4 is the structural drawing of a kind of color membrane substrates of providing of embodiment of the present invention;
Fig. 5～6th, the schematic diagram of the manufacture color membrane substrates that embodiment of the present invention provides;
Fig. 7 is the structural drawing of a kind of black matrix of providing of embodiment of the present invention
Fig. 8 is the structural drawing of a kind of display device of providing of embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Fig. 4 is a kind of color membrane substrates that embodiment of the present invention provides, comprise underlay substrate 1 and a plurality of colored light-filtering units, described a plurality of colored light-filtering units is disposed on described underlay substrate, between adjacent two colored light-filtering units, be also provided with black matrix 2, on described black matrix 2, be provided with groove 21, described black matrix 2 is overlapping with adjacent colored light-filtering units 8, and described overlapping region 7 extends to the groove 21 on described black matrix 2.
In embodiment of the present invention, groove 21 can be positioned at the middle part of black matrix 2.
In addition, the degree of depth of groove 21 can be less than or equal to the thickness of described black matrix 2.Preferably, the degree of depth 21 of this groove can equal the thickness of black matrix 2.
Wherein, the cross sectional shape of described groove is rectangle or trapezoidal.
Wherein, the overlapping width of black matrix 2 and adjacent colored light-filtering units 8 can be 6～7um.
Embodiment of the present invention is by arranging groove on the black matrix on color membrane substrates, and make this black matrix and the overlapping region of adjacent colored light-filtering units extend to the groove of this black matrix, thereby can effectively reduce the differential seat angle between black matrix and adjacent colored light-filtering units, improve display quality.In addition, the present invention can also reduce the aligning accuracy requirement of the resistance layer of checking colors greatly, and its management enough and to spare is expanded, and to color blocking live width, management and control can be relaxed forward supervision scope (Margin) simultaneously.
In addition, embodiment of the present invention also provides a kind of manufacture method of color membrane substrates, comprising:
Step S1: form black matrix on underlay substrate, be provided with groove on described black matrix;
Step S2: form a plurality of spaced colored light-filtering units on described underlay substrate, make described black matrix between adjacent two colored light-filtering units, and described black matrix and adjacent colored light-filtering units are overlapping, and described overlapping region extends to the groove on described black matrix.
Particularly, referring to Fig. 5 and Fig. 6, first on underlay substrate 1, form the figure of black matrix 2, and form groove 21 on black matrix 2, on underlay substrate 1, apply color blocking material 3, and by mask plate 4, it is carried out to exposure-processed, this mask plate 4 comprises light tight region 5 and peristome 6, ultraviolet light exposes on color blocking material 3 by peristome 6, afterwards underlay substrate obtained above is developed to toast and process, obtain color membrane substrates as shown in Figure 4, wherein, color blocking material 3 is after exposure imaging baking, can on the overlap joint region 7 of colored light-filtering units 8 and black matrix 2, not pile up, but gently enter in the groove 21 on this black matrix 2, make the pattern (Pattern) after developing present level and smooth profile (Profile), the angle section effectively having reduced between colored light-filtering units and black matrix is poor.For example, angle of the prior art section is poor is 0.5um left and right, the color membrane substrates obtaining by embodiment of the present invention, and its angle section is poor can be reduced to 0.2～0.3um.
Referring to Fig. 7, black matrix (BM) pattern on color membrane substrates is divided into three by the groove 21 1 on it, the pattern 22 that comprises groove 21 and groove both sides, pattern 22 is for considering the box limit (A ' ssy Margin), guarantee the pattern of shading, its width can be in conjunction with the box limit (A ' ssy Margin) is calculated, for example, the degree of depth of this groove can be identical with the thickness of black matrix, the groove area of black matrix is pattern-free district, when being exposed, color blocking material develops after baking, can on BM, not pile up, but gently by entering on BM in groove 21, the formation of this BM pattern can realize by the design of BM mask plate, particularly, can be according to the box limit (A ' ssy Margin) being calculated to the live width a of the pattern 22 of black matrix both sides, in conjunction with BM technological evaluation, go out deviation (Bias) b of BM material, the width c=N-(a+b of groove) * 2, wherein, N is former design live width, when publishing picture, BM mask plate can redesign a for N, b, c tri-parts.
In addition, embodiment of the present invention also provides a kind of display device, comprises array base palte and above-mentioned any one color membrane substrates.This display device can be: any product or parts with Presentation Function such as liquid crystal panel, mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
Referring to Fig. 8, Fig. 8 is a kind of display device that embodiment of the present invention provides, comprise array base palte 10 and above-mentioned any one color membrane substrates 9, wherein, on color membrane substrates 9, be provided with black matrix 2, black matrix 2 is provided with groove 21, and on array base palte, 10 are provided with the data line 11 relative with described black matrix 2, and the groove 21 of described black matrix and described data line 11 are over against setting.Wherein, the degree of depth of this groove 21 can be identical with the thickness of black matrix 2, when this display device is powered up, because the angle section between colored light-filtering units in A district and black matrix is poor less, so PI orientation is better, thereby make the liquid crystal molecule that is positioned at A district can realize good deflection, thereby improve the display quality of this display device, simultaneously, liquid crystal molecule in B district also can be realized good deflection, but the effect of blocking due to data line 11, make backlightly cannot see through array base palte and reach color membrane substrates, preferably, the width of the groove of described black matrix is less than or equal to the width of described data line, thereby make black matrix can block the groove 21 of black matrix completely, thereby prevent from backlightly by groove 21, causing light leakage phenomena.
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. a color membrane substrates, comprise underlay substrate and a plurality of colored light-filtering units, described a plurality of colored light-filtering units is disposed on described underlay substrate, between adjacent two colored light-filtering units, be also provided with black matrix, it is characterized in that, on described black matrix, be provided with groove, described black matrix and adjacent colored light-filtering units are overlapping, and described overlapping region extends to the groove on described black matrix.
2. color membrane substrates according to claim 1, is characterized in that, described groove is positioned at the middle part of described black matrix.
3. color membrane substrates according to claim 1, is characterized in that, the degree of depth of described groove is less than or equal to the thickness of described black matrix.
4. color membrane substrates according to claim 1, is characterized in that, the cross sectional shape of described groove is rectangle or trapezoidal.
5. a manufacture method for color membrane substrates, is characterized in that, comprising:
On underlay substrate, form black matrix, on described black matrix, be provided with groove;
On described underlay substrate, form a plurality of spaced colored light-filtering units, make described black matrix between adjacent two colored light-filtering units, and described black matrix and adjacent colored light-filtering units are overlapping, and described overlapping region extends to the groove on described black matrix.
6. a display device, is characterized in that, comprises array base palte and the color membrane substrates as described in claim 1～4 any one.
7. display device according to claim 6, is characterized in that, is provided with the data line relative with described black matrix on described array base palte, and the groove of described black matrix and described data line are over against setting.
8. display device according to claim 7, is characterized in that, the width of the groove of described black matrix is less than or equal to the width of described data line.
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| CN201310689126.XA CN103676299B (en) | 2013-12-12 | 2013-12-12 | The manufacture method of color membrane substrates, display device and color membrane substrates |
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| CN201310689126.XA CN103676299B (en) | 2013-12-12 | 2013-12-12 | The manufacture method of color membrane substrates, display device and color membrane substrates |
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| CN103676299B CN103676299B (en) | 2016-03-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647012A (en) * | 2017-03-15 | 2017-05-10 | 京东方科技集团股份有限公司 | Colorful color filter and display device with same |
| CN107741665A (en) * | 2017-10-17 | 2018-02-27 | 深圳市华星光电技术有限公司 | A kind of liquid crystal panel |
| CN108646459A (en) * | 2014-07-01 | 2018-10-12 | 群创光电股份有限公司 | Display panel |
| CN109445169A (en) * | 2018-12-25 | 2019-03-08 | 惠科股份有限公司 | Color film substrate, display panel and display device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101718932A (en) * | 2009-12-10 | 2010-06-02 | 友达光电股份有限公司 | Displaying panel |
| CN101825802A (en) * | 2009-03-06 | 2010-09-08 | 北京京东方光电科技有限公司 | Color film base plate and manufacturing method thereof |
| CN102681246A (en) * | 2012-04-12 | 2012-09-19 | 京东方科技集团股份有限公司 | Color film substrate, method for manufacturing same and liquid crystal display |
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2013
- 2013-12-12 CN CN201310689126.XA patent/CN103676299B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825802A (en) * | 2009-03-06 | 2010-09-08 | 北京京东方光电科技有限公司 | Color film base plate and manufacturing method thereof |
| CN101718932A (en) * | 2009-12-10 | 2010-06-02 | 友达光电股份有限公司 | Displaying panel |
| CN102681246A (en) * | 2012-04-12 | 2012-09-19 | 京东方科技集团股份有限公司 | Color film substrate, method for manufacturing same and liquid crystal display |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646459A (en) * | 2014-07-01 | 2018-10-12 | 群创光电股份有限公司 | Display panel |
| CN106647012A (en) * | 2017-03-15 | 2017-05-10 | 京东方科技集团股份有限公司 | Colorful color filter and display device with same |
| CN107741665A (en) * | 2017-10-17 | 2018-02-27 | 深圳市华星光电技术有限公司 | A kind of liquid crystal panel |
| CN109445169A (en) * | 2018-12-25 | 2019-03-08 | 惠科股份有限公司 | Color film substrate, display panel and display device thereof |
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| Publication number | Publication date |
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| CN103676299B (en) | 2016-03-23 |
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