CN105068304A - Color film substrate and manufacturing method thereof - Google Patents
Color film substrate and manufacturing method thereof Download PDFInfo
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- CN105068304A CN105068304A CN201510582246.9A CN201510582246A CN105068304A CN 105068304 A CN105068304 A CN 105068304A CN 201510582246 A CN201510582246 A CN 201510582246A CN 105068304 A CN105068304 A CN 105068304A
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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
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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
- G02F1/133514—Colour filters
-
- 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
- G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
Abstract
The invention provides a color film substrate and a manufacturing method thereof. As the thickness of a black matrix layer of the color film substrate is large, the phenomenon of light leakage after dark spot repair is carried out on a liquid crystal display panel can be avoided, and the repair success rate is increased. The manufacturing method of the color film substrate includes the steps that multiple grooves arrayed transversely and longitudinally are formed in the upper surface of the substrate by adopting a black matrix layer photomask in combination with the etching technology, multiple light shielding strips are formed along the grooves, the light shielding strips arrayed transversely and longitudinally form the black matrix layer, and each light shielding strip comprises a thickening part located in the corresponding groove and a light shielding part located on the groove. As the thickening parts are arranged, the overall thickness of the black matrix layer is increased, after dark spot repair is carried out, the black matrix layer is still kept thick, and the phenomenon of light leakage is avoided.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of color membrane substrates and preparation method thereof.
Background technology
Liquid crystal display (LiquidCrystalDisplay, LCD) has that fuselage is thin, power saving, the many merits such as radiationless, be widely used.As: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen etc., occupy an leading position in flat display field.
Usual display panels is by a color membrane substrates (ColorFilterSubstrate, CFSubstrate), a thin-film transistor array base-plate (ThinFilmTransistorArraySubstrate, TFTArraySubstrate) and a liquid crystal layer (LiquidCrystalLayer) be configured between two substrates formed, and respectively pixel electrode, public electrode are set in the relative inner of two substrates, change direction by applying Control of Voltage liquid crystal molecule, the light refraction of backlight module is out produced picture.
In display panels production run will through array, become the large operation of box two, and this two large operation comprises some individual sub-operations.Each operation has very high requirement to aspects such as environment, equipment, material, technique, operations, and departing from of these factors affects dot structure sometimes, serious formation defect.Bright spot is a kind of more common panel defect, is mixed into foreign matter, active layer is residual, image element circuit raceway groove abnormal, residual etc. the reason of pixel electrode all may cause fleck defect in material.Group founds into liquid crystal display panel after box, traditional restorative procedure for the bright spot of display panels generation makes it become dim spot by laser, normally utilize welding technology from the back side, TFT side by sweep trace and pixel electrode short circuit, make this pixel forever present dim spot state.But for LTPS (LowTemperaturePoly-silicon, low temperature polycrystalline silicon) product, cut because needs penetrate 2.5 μm of flatness layers and weld, repair successfully low.Therefore industry generally adopts BM (BlackMatrix, black matrix") radium-shine mode for LTPS product, from the back side, CF side, bright spot is adopted BM photoresistance dim spot.
In order to solve problem existing in laser bonding restorative procedure, propose a kind of black matrix" method for repairing and mending, refer to Fig. 1 to Fig. 4, the method comprises the steps:
Step 1, between color blocking block 30 corresponding to fleck defect and flatness layer 40, form gap 50 by high-power laser 20;
Step 2, got through the black matrix" 10 of color blocking block 30 both sides by laser 20, the basis in the gap 50 that step 1 is formed is formed the passage 60 connecting both sides black matrix" 10, while get through passage 60, has the black-matrix material splash of partial particulate shape in passage 60;
Step 3, by laser 20, splash is pushed away evenly to the black-matrix material in passage 60;
Step 4, to spread in the black-matrix material admission passage 60 of described passage 60 both sides, until fill up whole passage 60.
Above-mentioned method for repairing and mending is blocked the pixel with fleck defect by black-matrix material, its visual effect is made to be dim spot, to reach the object of reparation, but, above-mentioned black matrix" method for repairing and mending is adopted to carry out the display panels of bright spot reparation, black matrix" thickness often can be occurred after repair to reduce and cause the problem that light leak and contrast reduce, and then cause repairing failure, therefore in order to improve the reparation success ratio of black matrix" method for repairing and mending, need to improve the thickness of black matrix" and the optical density value of black-matrix material.
Summary of the invention
The object of the present invention is to provide a kind of color membrane substrates, its black-matrix layer has larger thickness, under the prerequisite not reducing color membrane substrates integral finish rate, can improve the success ratio of black matrix" method for repairing and mending.
The present invention also aims to the method for making that a kind of color membrane substrates is provided, several grooves arranged in horizontal and vertical are formed in conjunction with etching technique at the upper surface of underlay substrate by adopting the light shield of black-matrix layer, black-matrix layer is formed along described groove, the integral thickness of described black-matrix layer is higher, thus after carrying out dim spot repairing, black-matrix layer still keeps larger thickness, avoids the appearance of light leakage phenomena.
For achieving the above object, the invention provides a kind of color membrane substrates, comprising: substrate, the several septs be located at black-matrix layer on described substrate and color blocking layer, be located at the flatness layer on described black-matrix layer and color blocking layer and be located on described flatness layer;
The upper surface of described substrate offers several grooves arranged in horizontal and vertical, described black-matrix layer comprises several photo-shield strips arranged in horizontal and vertical arranged along described groove, and described photo-shield strip comprises the thickened section being positioned at described trench interiors and the light shielding part be positioned at above described groove.
The width of described light shielding part is greater than the width of described thickened section.
Several photo-shield strips described intersect on the substrate and limit several subpixel area, and described color blocking layer comprises the several color blocking blocks laid respectively in several subpixel area.
Described several color blocking block comprises redness, green and blue light stop block.
Described sept corresponds to black-matrix layer and arranges.
The present invention also provides a kind of method for making of color membrane substrates, comprises the steps:
Step 1, provide a substrate, adopt the light shield of black matrix" to carry out patterned process to described substrate, form several grooves arranged in horizontal and vertical at the upper surface of described substrate by etching;
Step 2, form several photo-shield strips along described groove on the substrate, several photo-shield strips arranged in horizontal and vertical described form black-matrix layer, and described photo-shield strip comprises the thickened section being positioned at described trench interiors and the light shielding part be positioned at above described groove;
Step 3, on substrate, make color blocking layer, several photo-shield strips described intersect on the substrate and limit several subpixel area, and described color blocking layer comprises the several color blocking blocks laid respectively in several subpixel area;
Step 4, in described black-matrix layer and color blocking layer, make flatness layer;
Step 5, on described flatness layer, form several sept.
In described step 1, described substrate is glass substrate, is that etching solution etches described substrate with hydrofluorite.
The width of described light shielding part is greater than the width of described thickened section.
Described several color blocking block comprises redness, green and blue light stop block.
Described sept corresponds to black-matrix layer and arranges.
Beneficial effect of the present invention: the invention provides a kind of color membrane substrates and preparation method thereof, color membrane substrates of the present invention, the thickness of its black-matrix layer is comparatively large, can avoid carrying out to display panels the appearance that dim spotization repairs rear light leakage phenomena, improves success rate of mending.The method for making of color membrane substrates of the present invention, several grooves arranged in horizontal and vertical are formed in conjunction with etching technique at the upper surface of underlay substrate by adopting the light shield of black-matrix layer, several photo-shield strips arranged in horizontal and vertical are formed along described groove, several photo-shield strips arranged in horizontal and vertical described form black-matrix layer, described photo-shield strip comprises the thickened section being positioned at described trench interiors and the light shielding part be positioned at above described groove, due to the setting of thickened section, the integral thickness of black-matrix layer is improved, make after carrying out dim spot repairing, black-matrix layer still keeps larger thickness, avoid the appearance of light leakage phenomena.
In order to further understand feature of the present invention and technology contents, refer to following detailed description for the present invention and accompanying drawing, but accompanying drawing only provides reference and explanation use, is not used for being limited the present invention.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention describe in detail, will make technical scheme of the present invention and other beneficial effect apparent.
In accompanying drawing,
Fig. 1 is the schematic diagram of the step 1 of existing black matrix" method for repairing and mending;
Fig. 2 is the schematic diagram of the step 2 of existing black matrix" method for repairing and mending;
Fig. 3 is the schematic diagram of the step 3 of existing black matrix" method for repairing and mending;
Fig. 4 is the schematic diagram of the step 4 of existing black matrix" method for repairing and mending;
Fig. 5 is the process flow diagram of the method for making of color membrane substrates of the present invention;
Fig. 6 is the schematic diagram of the step 1 of the method for making of color membrane substrates of the present invention;
Fig. 7 is the schematic diagram of the step 2 of the method for making of color membrane substrates of the present invention;
Fig. 8 is the schematic diagram of the step 3 of the method for making of color membrane substrates of the present invention;
Fig. 9 is the schematic diagram of the step 4 of the method for making of color membrane substrates of the present invention;
Figure 10 is the schematic diagram of the step 5 of the method for making of color membrane substrates of the present invention and the structural representation of color membrane substrates of the present invention.
Embodiment
For further setting forth the technological means and effect thereof that the present invention takes, be described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
Refer to Figure 10, first the present invention provides a kind of color membrane substrates, comprising: substrate 1, the several septs 5 be located at black-matrix layer on described substrate 13 and color blocking layer 2, be located at described black-matrix layer 3 and the flatness layer 4 on color blocking layer 2 and be located on described flatness layer 4;
The upper surface of described substrate 1 offers several grooves arranged in horizontal and vertical 11, described black-matrix layer 3 comprises several photo-shield strips arranged in horizontal and vertical 3 arranged along described groove 11, and described photo-shield strip 3 comprises the thickened section 301 being positioned at described groove 11 inside and the light shielding part 302 be positioned at above described groove 11.
Concrete, the width of described light shielding part 302 is greater than the width of described thickened section 301.
Concrete, described light shielding part 302 is positioned at same layer with described color blocking layer 2, and the thickness of the two is almost identical.
Concrete, several photo-shield strips 30 described intersect and limit several subpixel area on described substrate 1, and described color blocking layer 2 comprises the several color blocking blocks 21 laid respectively in several subpixel area.
Concrete, described several color blocking block 21 comprises redness, green and blue light stop block.It should be noted that, described color blocking layer 2 is not limited to the situation comprising red light stop block, green light stop block and blue light stop block, can also comprise sodium yellow stop block, transparent optical stop block, claret photoresistance block, purple light stop block etc., the color blocking block of thinkable all colours and the color blocking layer that is combined to form thereof can as the color blocking layers in the embodiment of the present invention for those skilled in the art.
Concrete, described sept 5 corresponds to black-matrix layer 3 and arranges, thus can avoid the aperture opening ratio affecting display panels.
Preferably, described substrate 1 is glass substrate.
Preferably, the material of described black-matrix layer 3 is metal material or resin type material.
Especially, described groove 11 adopts the mask pattern of black-matrix layer 3 to carry out on substrate 1 etching and obtaining.
Directly on substrate, black-matrix layer is formed compared in prior art, in color membrane substrates of the present invention, black-matrix layer 3 is formed at groove 11 position of substrate 1, groove 11 makes the thickness of black-matrix layer 3 be promoted, and the integral finish rate of color membrane substrates can not be reduced, thus color membrane substrates of the present invention carry out dim spotization repair time, effectively can prevent from occurring the problem that black-matrix layer 3 thickness reduces and the light leak that causes and contrast reduce after repairing, promote and repair success ratio.
Refer to Fig. 5, the present invention also provides a kind of method for making of color membrane substrates, comprises the steps:
Step 1, refer to Fig. 6, a substrate 1 is provided, adopt the light shield of black matrix" to carry out patterned process to described substrate 1, form several grooves 11 arranged in horizontal and vertical at the upper surface of described substrate 1 by etching.
Concrete, in described step 1, described substrate 1 is glass substrate, is that etching solution etches described substrate 1 with hydrofluorite.
Step 2, refer to Fig. 7, described substrate 1 forms several photo-shield strips 30 along described groove 11, several photo-shield strips 30 arranged in horizontal and vertical described form black-matrix layer 3, and described photo-shield strip 30 comprises the thickened section 301 being positioned at described groove 11 inside and the light shielding part 302 be positioned at above described groove 11.
Concrete, the width of described light shielding part 302 is greater than the width of described thickened section 301.
Concrete, the material of described black-matrix layer 3 is metal material or resin type material.
Step 3, refer to Fig. 8, make color blocking layer 2 on substrate 1, several photo-shield strips 30 described intersect and limit several subpixel area on described substrate 1, and described color blocking layer 2 comprises the several color blocking blocks 21 laid respectively in several subpixel area.
Concrete, described light shielding part 302 is positioned at same layer with described color blocking layer 2, and the thickness of the two is almost identical.
Concrete, described several color blocking block 21 comprises redness, green and blue light stop block.It should be noted that, described color blocking layer 2 is not limited to the situation comprising red light stop block, green light stop block and blue light stop block, can also comprise sodium yellow stop block, transparent optical stop block, claret photoresistance block, purple light stop block etc., the color blocking block of thinkable all colours and the color blocking layer that is combined to form thereof can as the color blocking layers in the embodiment of the present invention for those skilled in the art.
Step 4, refer to Fig. 9, described black-matrix layer 3 and color blocking layer 2 make flatness layer 4.
Concrete, the upper surface of described flatness layer 4 pairs of black-matrix layer 3 and color blocking layer 2 carries out planarization, can be used as the protective seam of color blocking layer 2 simultaneously.
Step 5, refer to Figure 10, described flatness layer 4 forms several sept 5, completes the making of color membrane substrates.
Concrete, described sept 5 corresponds to black-matrix layer 3 and arranges, thus can avoid the aperture opening ratio affecting display panels.
Concrete, described flatness layer 4 is organic material.
In sum, the invention provides a kind of color membrane substrates and preparation method thereof, color membrane substrates of the present invention, the thickness of its black-matrix layer is comparatively large, can avoid carrying out to display panels the appearance that dim spotization repairs rear light leakage phenomena, improves success rate of mending.The method for making of color membrane substrates of the present invention, several grooves arranged in horizontal and vertical are formed in conjunction with etching technique at the upper surface of underlay substrate by adopting the light shield of black-matrix layer, several photo-shield strips are formed along described groove, several photo-shield strips arranged in horizontal and vertical described form black-matrix layer, described photo-shield strip comprises the thickened section being positioned at described trench interiors and the light shielding part be positioned at above described groove, due to the setting of thickened section, the integral thickness of black-matrix layer is improved, make after carrying out dim spot repairing, black-matrix layer still keeps larger thickness, avoid the appearance of light leakage phenomena.
The above, for the person of ordinary skill of the art, can make other various corresponding change and distortion according to technical scheme of the present invention and technical conceive, and all these change and be out of shape the protection domain that all should belong to the claims in the present invention.
Claims (10)
1. a color membrane substrates, it is characterized in that, comprising: substrate (1), the several septs (5) be located at black-matrix layer (3) on described substrate (1) and color blocking layer (2), be located at described black-matrix layer (3) and the flatness layer (4) on color blocking layer (2) and be located on described flatness layer (4);
The upper surface of described substrate (1) offers several grooves arranged in horizontal and vertical (11), described black-matrix layer (3) comprises several photo-shield strips arranged in horizontal and vertical (30) arranged along described groove (11), and described photo-shield strip (30) comprises the light shielding part (302) being positioned at the inner thickened section (301) of described groove (11) and being positioned at described groove (11) top.
2. color membrane substrates as claimed in claim 1, it is characterized in that, the width of described light shielding part (302) is greater than the width of described thickened section (301).
3. color membrane substrates as claimed in claim 1, it is characterized in that, described several photo-shield strips (30) limit several subpixel area in the upper intersection of described substrate (1), and described color blocking layer (2) comprises the several color blocking blocks (21) laid respectively in several subpixel area.
4. color membrane substrates as claimed in claim 1, it is characterized in that, described several color blocking block (21) comprises redness, green and blue light stop block.
5. color membrane substrates as claimed in claim 1, it is characterized in that, described sept (5) is arranged corresponding to black-matrix layer (3).
6. a method for making for color membrane substrates, is characterized in that, comprises the steps:
Step 1, provide a substrate (1), adopt the light shield of black matrix" to carry out patterned process to described substrate (1), form several grooves arranged in horizontal and vertical (11) at the upper surface of described substrate (1) by etching;
Step 2, on described substrate (1), form several photo-shield strips (30) along described groove (11), several photo-shield strips arranged in horizontal and vertical (30) described form black-matrix layer (3), and described photo-shield strip (30) comprises the light shielding part (302) being positioned at the inner thickened section (301) of described groove (11) and being positioned at described groove (11) top;
Step 3, making color blocking layer (2) on substrate (1), described several photo-shield strips (30) limit several subpixel area in the upper intersection of described substrate (1), and described color blocking layer (2) comprises the several color blocking blocks (21) laid respectively in several subpixel area;
Step 4, in described black-matrix layer (3) and color blocking layer (2), make flatness layer (4);
Step 5, the several sept of formation (5) on described flatness layer (4).
7. the method for making of color membrane substrates as claimed in claim 6, it is characterized in that, in described step 1, described substrate (1) is glass substrate, is that etching solution etches described substrate (1) with hydrofluorite.
8. the method for making of color membrane substrates as claimed in claim 6, it is characterized in that, the width of described light shielding part (32) is greater than the width of described thickened section (31).
9. the method for making of color membrane substrates as claimed in claim 6, it is characterized in that, described several color blocking block (21) comprises redness, green and blue light stop block.
10. the method for making of color membrane substrates as claimed in claim 6, it is characterized in that, described sept (5) is arranged corresponding to black-matrix layer (3).
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| CN201510582246.9A CN105068304B (en) | 2015-09-14 | 2015-09-14 | Color membrane substrates and preparation method thereof |
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| CN201510582246.9A CN105068304B (en) | 2015-09-14 | 2015-09-14 | Color membrane substrates and preparation method thereof |
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| CN106773214A (en) * | 2017-01-03 | 2017-05-31 | 京东方科技集团股份有限公司 | A kind of display base plate and its manufacture method, display device |
| CN106990596A (en) * | 2017-05-12 | 2017-07-28 | 武汉华星光电技术有限公司 | Color membrane substrates and liquid crystal display |
| CN107340626A (en) * | 2017-08-17 | 2017-11-10 | 东旭（昆山）显示材料有限公司 | Black matrix structure and preparation method thereof, colored filter and display panel |
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| WO2018033012A1 (en) * | 2016-08-18 | 2018-02-22 | 京东方科技集团股份有限公司 | Cell substrate, liquid crystal display panel and spot removal method therefor |
| CN106547137A (en) * | 2016-11-01 | 2017-03-29 | 深圳市华星光电技术有限公司 | A kind of liquid crystal panel and manufacture method |
| CN106773214A (en) * | 2017-01-03 | 2017-05-31 | 京东方科技集团股份有限公司 | A kind of display base plate and its manufacture method, display device |
| CN106990596A (en) * | 2017-05-12 | 2017-07-28 | 武汉华星光电技术有限公司 | Color membrane substrates and liquid crystal display |
| WO2019007107A1 (en) * | 2017-07-07 | 2019-01-10 | 京东方科技集团股份有限公司 | Method for repairing display panel, and display panel |
| US11237415B2 (en) | 2017-07-07 | 2022-02-01 | Boe Technology Group Co., Ltd. | Method for repairing a display panel and a display panel |
| CN107340626A (en) * | 2017-08-17 | 2017-11-10 | 东旭（昆山）显示材料有限公司 | Black matrix structure and preparation method thereof, colored filter and display panel |
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