CN104793413A - Liquid crystal display device and manufacturing method thereof - Google Patents
Liquid crystal display device and manufacturing method thereof Download PDFInfo
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- CN104793413A CN104793413A CN201510211915.1A CN201510211915A CN104793413A CN 104793413 A CN104793413 A CN 104793413A CN 201510211915 A CN201510211915 A CN 201510211915A CN 104793413 A CN104793413 A CN 104793413A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 129
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000009413 insulation Methods 0.000 claims abstract description 102
- 239000000758 substrate Substances 0.000 claims abstract description 83
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims description 51
- 230000003287 optical effect Effects 0.000 claims description 51
- 239000011521 glass Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000012780 transparent material Substances 0.000 claims description 7
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical group N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 6
- 230000035515 penetration Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 14
- 230000005684 electric field Effects 0.000 description 9
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 6
- 229910021417 amorphous silicon Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 229920001621 AMOLED Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910004205 SiNX Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- 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
- G02F1/133512—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
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
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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)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Liquid Crystal (AREA)
- Optical Filters (AREA)
Abstract
The invention discloses a liquid crystal display device which comprises an array substrate, a color filter substrate and a liquid crystal layer. The color filter substrate is opposite to the array substrate, and the liquid crystal layer is clamped between the array substrate and the color filter substrate. The color filter substrate comprises a black matrix, a color resistance layer, a first public electrode and a flat layer which face the surface of the array substrate. The array substrate comprises a plurality of scanning lines, a first insulation layer, a second insulation layer, a plurality of data lines, a third insulation layer, a second public electrode, a fourth insulation layer and a pixel electrode, wherein the first insulation layer covers the surfaces of the scanning lines, the second insulation layer is arranged on the surface of the first insulation layer, the data lines are arranged on the surface of the first insulation layer, the third insulation layer is arranged on the surfaces of the first and second insulation layers and the surfaces of the data lines, the second public electrode is arranged on the surface of the third insulation layer, the fourth insulation layer covers the surface of the second public electrode and the surface of the third insulation layer, the pixel electrode covers the surfaces of the third and fourth insulation layers, and the pixel electrode makes contact with the data lines. The penetration rate of the liquid crystal display device can be improved.
Description
Technical field
The present invention relates to display technique field, particularly a kind of liquid crystal indicator and preparation method thereof.
Background technology
Liquid crystal indicator (Liquid Crystal Display, LCD) has that image quality is good, volume is little, lightweight, low driving voltage, low-power consumption, the advantage that radiationless and manufacturing cost is relatively low, occupy an leading position in flat display field at present.Along with the fast development of display technique, adopt the TN type liquid crystal indicator of TN (twistednematic, twisted-nematic) Technical Architecture due to multiple advantages such as with low cost and fast response times, receive the concern of consumer.
Fig. 1 is the part section structural representation of existing a kind of TN type liquid crystal indicator.As shown in Figure 1, existing TN type liquid crystal indicator, the liquid crystal layer 13 comprising array base palte 11, colored optical filtering substrates 12 and be folded between array base palte 11 and colored optical filtering substrates 12.Colored optical filtering substrates 12 comprises substrate and is arranged on first public electrode 127 and first both alignment layers 128 of real estate to the surface of array base palte 11 side.Array base palte 11 comprises substrate 101 and is successively set on data line 103, second public electrode 105 of substrate 101 in the face of the surface of colored optical filtering substrates 12 side, pixel electrode 106 and the second both alignment layers 107.Wherein, the second public electrode 105 is arranged on the side of data line 103, and is positioned at same layer with data line 103, and the frictional direction of the first both alignment layers 128, second both alignment layers 107 is mutually vertical.When not having impressed voltage between the first public electrode 127, pixel electrode 106, the linearly polarized light that now TN type liquid crystal indicator can make polarization direction be parallel to incident ray both alignment layers direction is converted to the perpendicular linearly polarized light outgoing in the polarization direction of polarization direction and incident ray polarized light; When impressed voltage between the first public electrode 127, pixel electrode 106 is more than or equal to threshold voltage, TN type liquid crystal indicator does not change the polarization state of incident ray polarized light.In above process, the liquid crystal molecule in liquid crystal layer 13 is all with certain rule proper alignment.But, in reality, owing to also there is electric field between the second public electrode 105, data line 103, and between the second public electrode 105 and data line 103 electric field effect under, Liquid Crystal Molecules Alignment near data line 103 is extremely irregular, make easily to occur light leakage phenomena near TN type liquid crystal indicator data line 103, thus the aperture opening ratio of liquid crystal indicator and penetrance are reduced.In order to solve the problem, prior art just can arrange the opaque material of one fixed width usually to data line 103 both sides on colored optical filtering substrates 12 surface, such as black matrix stops leakage of light.But this method easily causes due to the existence of the black matrix of one fixed width that the effective display area of liquid crystal indicator reduces, aperture opening ratio reduces, penetrance reduces, brightness reduces, and then affects the display quality of liquid crystal indicator picture.
Summary of the invention
The invention provides a kind of liquid crystal indicator, solve the problem that above-mentioned liquid crystal indicator penetrance is lower.
Described technical scheme is as follows:
Embodiments provide a kind of liquid crystal indicator, described liquid crystal indicator comprises: array base palte, the colored optical filtering substrates be oppositely arranged with array base palte, be interposed in the liquid crystal layer between array base palte and colored optical filtering substrates, colored optical filtering substrates comprises the black matrix arranged towards array base palte surface, color blocking layer, first public electrode, and flatness layer, array base palte comprises multi-strip scanning line, cover first insulation course on sweep trace surface, be arranged on the second insulation course of the first surface of insulating layer, many the data lines be parallel to each other being arranged on the first surface of insulating layer, be arranged on the 3rd insulation course on the first insulation course and the second surface of insulating layer and data line surface, be arranged on the second public electrode of the 3rd surface of insulating layer, cover the 4th insulation course of the second public electrode and the 3rd surface of insulating layer, cover the pixel electrode of the 3rd insulation course and the 4th surface of insulating layer, wherein, described multi-strip scanning line and described a plurality of data lines intersect to limit multiple pixel cell mutually, pixel electrode also contacts with data line.
In one embodiment of the invention, array base palte also offers a via hole, via hole is positioned at directly over data line also through the 3rd insulation course and the 4th insulation course, and the bottom of via hole contacts with the surface of data line, pixel electrode is arranged on the internal face of via hole, and pixel electrode contacts with the data line surface being positioned at via bottom.
In one embodiment of the invention, provide the common electric voltage of interchange to the first public electrode that colored optical filtering substrates is arranged, the common electric voltage of direct current is provided to the second public electrode that array base palte is arranged.
In one embodiment of the invention, the material of the first insulation course, the 3rd insulation course and the 4th insulation course is silicon nitride.
In one embodiment of the invention, the first public electrode, the second public electrode and pixel electrode are electrically conducting transparent material.
Embodiments provide a kind of method for making of liquid crystal indicator, the method for making of described liquid crystal indicator comprises: the colored optical filtering substrates providing liquid crystal indicator, and on colored filter substrate, form black matrix, color blocking layer, the first public electrode and flatness layer successively; Form the second substrate of glass of array base palte, above the second substrate of glass, form multi-strip scanning line, form the first insulation course on sweep trace surface and the second glass basic surface, and form the second insulation course at the first surface of insulating layer; Many the data lines be parallel to each other are formed at the first surface of insulating layer, the 3rd insulation course is formed on the first surface of insulating layer, the second surface of insulating layer and data line surface, form the second public electrode at the 3rd surface of insulating layer, form the 4th insulation course on the second public electrode surface and the 3rd surface of insulating layer; And cover pixel electrode at the 3rd insulation course and the 4th surface of insulating layer, and pixel electrode is contacted with data line.
In one embodiment of the invention, pixel electrode is contacted with data line comprise: directly over data line, offer the via hole that passes the 3rd insulation course and the 4th insulation course, and the bottom of via hole contacts with the surface of data line, pixel electrode is formed at the internal face of via hole, and pixel electrode contacts with the data line surface being positioned at via bottom, and cover the surface of the 3rd insulation course and the 4th insulation course.
In one embodiment of the invention, the method for making of liquid crystal indicator also comprises: the common electric voltage providing interchange to the first public electrode that colored optical filtering substrates is arranged, and provides the common electric voltage of direct current to the second public electrode that array base palte is arranged.
In one embodiment of the invention, the material of the first insulation course, the 3rd insulation course and the 4th insulation course is silicon nitride.
In one embodiment of the invention, the first public electrode, the second public electrode and pixel electrode are electrically conducting transparent material.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The second public electrode on array base palte is arranged on the 3rd surface of insulating layer, second public electrode is positioned at above data line, therefore the electric field formed between the second public electrode and data line can be shielded, make the common electric voltage impact of the change in voltage on data line on the first public electrode that colored optical filtering substrates is arranged very little, therefore, the common electric voltage of the first public electrode that colored optical filtering substrates is arranged can be very stable, so the liquid crystal arrangement near data line can be made neat, reduce the light leak near data line, thus improve the aperture opening ratio of liquid crystal indicator, brightness and penetrance.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the part section structural representation of existing a kind of TN type liquid crystal indicator;
Fig. 2 is the planimetric map of the liquid crystal indicator of the embodiment of the present invention;
Fig. 3 is the part section structural representation of liquid crystal indicator along II-II of Fig. 2;
Fig. 4 is available to the waveform intention of the voltage of the liquid crystal indicator of Fig. 2;
Fig. 5 is the planimetric map of the liquid crystal indicator of comparative example;
Fig. 6 a be comparative example the position-penetrance oscillogram of liquid crystal indicator;
Fig. 6 b is the Liquid Crystal Molecules Alignment schematic diagram in the liquid crystal layer of comparative example;
Fig. 7 a is the position-penetrance oscillogram of the liquid crystal indicator of the embodiment of the present invention;
Fig. 7 b is the Liquid Crystal Molecules Alignment schematic diagram in the liquid crystal layer of the liquid crystal indicator of the embodiment of the present invention.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to the liquid crystal indicator proposed according to the present invention and preparation method thereof its embodiment, structure, feature and effect, be described in detail as follows.
Aforementioned and other technology contents, Characteristic for the present invention, can clearly present in following cooperation describes in detail with reference to graphic preferred embodiment.By the explanation of embodiment, when can to the present invention for the technological means reaching predetermined object and take and effect be able to more deeply and concrete understanding, however institute's accompanying drawings be only to provide with reference to and the use of explanation, be not used for being limited the present invention.
Fig. 2 is the planimetric map of the liquid crystal indicator of the embodiment of the present invention.Fig. 3 is the part section structural representation of liquid crystal indicator along II-II of Fig. 2.Please refer to Fig. 2 and Fig. 3, the liquid crystal indicator 300 of the present embodiment is liquid crystal indicator (the Liquid Crystal Display of TN type, LCD), but not as limit, it also can be such as active-matrix Organic Light Emitting Diode (Active MatrixOrganic Light Emitting Diode, AMOLED) display device.Liquid crystal indicator 300 comprises: the colored optical filtering substrates 303 that array base palte 301 and array base palte 301 are oppositely arranged, be interposed in liquid crystal layer 305 between array base palte 301 and colored optical filtering substrates 303.In the present embodiment, the liquid crystal molecule in liquid crystal layer 305 is TN type liquid crystal.
Wherein, colored optical filtering substrates 303 comprises the first substrate of glass 311, be arranged on the black matrix 312 on the first substrate of glass 311 surface, be arranged on the first substrate of glass 311 and and the spaced color blocking layer 313 of black matrix 312, cover first public electrode 316 on color blocking layer 313 and black matrix 312 surface and cover the flatness layer (Over Coat) 318 on the first public electrode 316 surface, namely, flatness layer 318 is positioned at the side towards array base palte 301 of the first public electrode 316, particularly, this first public electrode 316 is arranged in the middle of color blocking layer 313 and flatness layer 318, but not as limit, in other embodiments, this first public electrode 316 also can be arranged between this first substrate of glass 311 and black matrix 312 and color blocking layer 313, in addition, this first public electrode 316 can also be arranged between color blocking layer 313 and black matrix 312 and the first substrate of glass 311.Wherein, black matrix 312 can be formed by resin material, and flatness layer 318 can be formed by organic insulation.First public electrode 316 is electrically conducting transparent material, such as tin indium oxide (ITO) etc.
Array base palte 301 comprises the second substrate of glass 330, be arranged on the multi-strip scanning line 331 on the second substrate of glass 330 surface, cover first insulation course 341 on sweep trace 331 surface and the second substrate of glass 330 surface, be arranged on second insulation course 344 on the first insulation course 341 surface, many the data lines 345 be parallel to each other being arranged on the first insulation course 341 surface, be arranged on the first insulation course 341 surface, 3rd insulation course 350 on the second insulation course 344 surface and data line 345 surface, be arranged on second public electrode 343 on the 3rd insulation course 350 surface, cover the 4th insulation course 336 on the second public electrode 343 surface and the 3rd insulation course 350 surface, cover the pixel electrode 334 on the 3rd insulation course 350 and the 4th insulation course 336 surface, pixel electrode 334 also contacts with data line 345.Wherein, data line 345 and sweep trace 331 mutually transposition insulator arrange to limit multiple pixel cell, the material of the first insulation course 341, the 3rd insulation course 350 and the 4th insulation course 336 can be SiNx (silicon nitride), second public electrode 343 and pixel electrode 334 are electrically conducting transparent material, such as tin indium oxide (ITO) etc.The material of the second insulation course 344 can be amorphous silicon (a-Si) or N-type silicon (n+Si).
Further, in the present embodiment, array base palte 301 is also offered a via hole 355, via hole 355 is positioned at directly over data line 345 also through the 3rd insulation course 350 and the 4th insulation course 336, and the bottom of via hole 355 contacts with the surface of data line 345, pixel electrode 334 is arranged on the internal face of via hole 355, and pixel electrode 334 contacts with data line 345 surface be positioned at bottom via hole 355.
In embodiments of the present invention, the second public electrode 343 arranged on the surface due to the 3rd insulation course 350 of array base palte 301 uses transparent conductive material to make, and the second public electrode 343 is positioned at above data line 345, because conductive material has electric field shielding effect, therefore the second public electrode 343 can shield the electric field formed between the second public electrode 343 and data line 345, the liquid crystal arrangement near data line 345 can be made neat, reduce the light leak near data line 345, thus the width of the black matrix 312 arranged on colored optical filtering substrates 303 can be reduced, thus improve the aperture opening ratio of liquid crystal indicator, brightness and penetrance.
Fig. 4 is available to the waveform intention of the voltage of the liquid crystal indicator of Fig. 2.Please refer to Fig. 4, curve D V1 is the voltage change curve on data line 345, curve A V1 is the change curve providing the common electric voltage of direct current to the second public electrode 343 that array base palte 301 is arranged, curve C FV1 is the change curve providing the common electric voltage of interchange to the first public electrode 316 that colored optical filtering substrates 303 is arranged, and curve GV1 is the voltage change curve on sweep trace 331.In embodiments of the present invention, there is provided two kinds of common electric voltages to liquid crystal indicator: provide the common electric voltage of direct current to the second public electrode 343 that array base palte 301 is arranged, form storage capacitors with pixel electrode 334 in order to the electric interfering field that shields between the second public electrode 343 and data line 345; The common electric voltage of interchange is provided to the first public electrode 316 that colored optical filtering substrates 303 is arranged, can effectively prevents the liquid crystal in liquid crystal layer 305 polarized.And, prior art is arranged at data line side because of the second public electrode, and with data line bit in same layer, make the voltage of the first public electrode that colored optical filtering substrates is arranged also can be caused to change during the change in voltage on data line, the voltage of the first public electrode therefore colored optical filtering substrates arranged also can be unstable.And in the embodiment of the present invention, the second public electrode 343 that array base palte 301 is arranged is positioned at above data line 345, therefore the electric field formed between the second public electrode 343 and data line 345 can be shielded, make the common electric voltage impact of the change in voltage on data line 345 on the first public electrode 316 that colored optical filtering substrates 303 is arranged very little, the common electric voltage of the first public electrode 316 that colored optical filtering substrates 303 is arranged can be very stable, make the liquid crystal arrangement near data line 345 neat, decrease the light leak near data line 345, thus improve the aperture opening ratio of liquid crystal indicator, brightness and penetrance.In addition, due to the common electric voltage providing interchange to the first public electrode 316 that colored optical filtering substrates 303 is arranged, and provide the common electric voltage of direct current to the second public electrode 343 that array base palte 301 is arranged, voltage difference between first public electrode 316 and the second public electrode 343 remains unchanged (as shown in Figure 4) substantially, the Liquid Crystal Molecules Alignment near data line 345 can be made neat, present light tight state, the light leakage phenomena near data line 345 can be prevented, improve the aperture opening ratio of liquid crystal indicator, brightness and penetrance further.
Penetrance (transmittance) analog result of the liquid crystal indicator provided for the embodiment of the present invention below and the liquid crystal indicator of comparative example, the liquid crystal indicator of comparative example is existing a kind of liquid crystal indicator.Fig. 5 is the planimetric map of the liquid crystal indicator of comparative example, please refer to Fig. 5, the liquid crystal indicator that the liquid crystal indicator of this comparative example and the embodiment of the present invention provide is distinguished and is: in comparative example, the second public electrode that array base palte is arranged is positioned at the side of data line 545, and to the common electric voltage that the first public electrode that colored optical filtering substrates is arranged provides, identical with the common electric voltage provided to the second public electrode that array base palte is arranged; In the embodiment of the present invention, second public electrode 343 is arranged on the surface of the 3rd insulation course 350, and provide the common electric voltage of interchange to the first public electrode 316 that colored optical filtering substrates 303 is arranged, the common electric voltage of direct current is provided to the second public electrode 343 that array base palte 301 is arranged.Compared with comparative example, the liquid crystal indicator that the embodiment of the present invention provides due on array base palte 301 arrange the second public electrode 343 be positioned at above data line 345, therefore the electric field formed between the second public electrode 343 and data line 345 can be shielded, make the common electric voltage impact of the change in voltage on data line 345 on the first public electrode 316 that colored optical filtering substrates 303 is arranged very little, therefore, the common electric voltage of the first public electrode 316 that colored optical filtering substrates 303 is arranged can be very stable, the liquid crystal arrangement near data line 345 can be made neat, reduce the light leak near data line 345, thus improve the aperture opening ratio of liquid crystal indicator, brightness and penetrance.In addition, due to the common electric voltage providing interchange to the first public electrode 316 that colored optical filtering substrates 303 is arranged, and provide the common electric voltage of direct current to the second public electrode 343 that array base palte 301 is arranged, voltage difference between first public electrode 316 and the second public electrode 343 remains unchanged (as shown in Figure 4) substantially, so further make the Liquid Crystal Molecules Alignment near data line 345 neat, present light tight state, prevent the light leakage phenomena near data line 345, the aperture opening ratio of further lifting liquid crystal indicator, brightness and penetrance, the visible Fig. 6 a-7b of physical simulation result.
Fig. 6 a and Fig. 6 b is the Liquid Crystal Molecules Alignment schematic diagram in the position-penetrance oscillogram of the liquid crystal indicator of comparative example and liquid crystal layer respectively.Fig. 7 a and Fig. 7 b is the Liquid Crystal Molecules Alignment schematic diagram in the position-penetrance oscillogram of the liquid crystal indicator of the embodiment of the present invention and liquid crystal layer respectively.As shown in Figure 6 a, curve 601 is on state of penetrance change curves along with the position from left to right direction (the x-axis direction namely in Fig. 6 a) of corresponding array base palte and colored optical filtering substrates of liquid crystal indicator as shown in Figure 5, and curve 603 is dark-state penetrance change curves along with the position from left to right direction (the x-axis direction namely in Fig. 6 a) of corresponding array base palte and colored optical filtering substrates of liquid crystal indicator as shown in Figure 5.As shown in Figure 7a, curve 701 is on state of penetrance change curves along with the position from left to right direction (the x-axis direction namely in Fig. 7 a) of corresponding array base palte 301 and colored optical filtering substrates 303 of the liquid crystal indicator of the embodiment of the present invention, and curve 703 is dark-state penetrance change curves along with the position from left to right direction (the x-axis direction namely in Fig. 7 a) of corresponding array base palte 301 and colored optical filtering substrates 303 of the liquid crystal indicator of the embodiment of the present invention.Position-penetrance the waveform 601 of the liquid crystal indicator of comparative example in the position of the liquid crystal indicator of the embodiment of the present invention in Fig. 7 a-penetrance waveform 701 and Fig. 6 a is compared and can find out, when identical substrate position, the on state of penetrance of the liquid crystal indicator of the embodiment of the present invention is higher than the on state of penetrance of the liquid crystal indicator of comparative example.Position-penetrance the waveform 603 of the liquid crystal indicator of comparative example in the position of embodiment of the present invention liquid crystal indicator in Fig. 7 a-penetrance waveform 703 and Fig. 6 a is compared and can find out, when identical substrate position, the penetrance of the liquid crystal indicator of the embodiment of the present invention is higher than the dark-state penetrance of the liquid crystal indicator of comparative example.And, liquid crystal indicator as shown in Figure 5 be arranged at data line side because of the second public electrode, make the spread of voltage that can cause the first public electrode that colored optical filtering substrates is arranged during the change in voltage on data line, and the electric field formed between the second public electrode 343 and data line 345 cannot shield, make the liquid crystal arrangement near data line 345 irregular (as shown in Figure 6 b), there is light leakage phenomena near data line 345, thus reduce the aperture opening ratio of liquid crystal indicator, brightness and penetrance.The liquid crystal indicator 300 of the embodiment of the present invention is positioned at above data line 345 due to the second public electrode 343 that array base palte 301 is arranged, the electric field formed between the second public electrode 343 and data line 345 can be shielded, make the common electric voltage impact of the change in voltage on data line 345 on the first public electrode 316 that colored optical filtering substrates 303 is arranged very little, therefore, the common electric voltage of the first public electrode 316 that colored optical filtering substrates 303 is arranged can be very stable, liquid crystal arrangement near data line 345 is neat, reduce the light leak near data line 345, thus improve the aperture opening ratio of liquid crystal indicator, brightness and penetrance.In addition, due to the common electric voltage providing interchange to the first public electrode 316 that colored optical filtering substrates 303 is arranged, and provide the common electric voltage of direct current to the second public electrode 343 that array base palte 301 is arranged, voltage difference between first public electrode 316 and the second public electrode 343 remains unchanged (as shown in Figure 4) substantially, so further make the Liquid Crystal Molecules Alignment neat (as shown in Figure 7b) near data line 345, present light tight state, thus prevent the light leakage phenomena near data line 345, the aperture opening ratio of further lifting liquid crystal indicator, brightness and penetrance.
Be described further to the method for making of liquid crystal indicator 300 below.
First, the colored optical filtering substrates 303 of liquid crystal indicator 300 is provided.In the present embodiment, liquid crystal indicator 300 comprises colored optical filtering substrates 303 that array base palte 301 and array base palte 301 be oppositely arranged, be interposed in liquid crystal layer 305 between array base palte 301 and colored optical filtering substrates 303, but not as limit.The making step of colored optical filtering substrates 303 is included on colored filter substrate 303 and forms black matrix 312, color blocking layer 313, first public electrode 316 and the isostructural making step of flatness layer 318 successively, it is comparatively known for those skilled in the art, does not repeat them here.
Then, form the second substrate of glass 330 of array base palte 301, above the second substrate of glass 330, form multi-strip scanning line 331, form the first insulation course 341 on sweep trace 331 surface and the second substrate of glass 330 surface, and form the second insulation course 344 on the first insulation course 341 surface.
Then, exposure imaging etch process is adopted to form many data lines be parallel to each other 345 on the first insulation course 341 surface, first insulation course 341 surface, second insulation course 344 surface and data line 345 surface formed the 3rd insulation course 350, form the second public electrode 343 on the 3rd insulation course 350 surface, form the 4th insulation course 336 on the second public electrode 343 surface and the 3rd insulation course 350 surface.
Then, at the 3rd insulation course 350 and the 4th insulation course 336 surface coverage pixel electrode 334, and pixel electrode 334 is contacted with data line 345.Particularly, pixel electrode 334 is contacted with this data line 345 comprise: directly over data line 345, offer the via hole 355 that passes the 3rd insulation course 350 and the 4th insulation course 336, and the bottom of via hole 355 contacts with the surface of data line 345, pixel electrode 334 is formed at the internal face of via hole 355, and pixel electrode 334 contacts with data line 345 surface be positioned at bottom via hole 355, and cover the surface of the 3rd insulation course 350 and the 4th insulation course 336.
Wherein, the material of the first insulation course 341, the 3rd insulation course 350 and the 4th insulation course 336 can be SiNx (silicon nitride), and the second public electrode 343 and pixel electrode 334 are electrically conducting transparent material, such as tin indium oxide (ITO) etc.The material of the second insulation course 344 can be amorphous silicon (a-Si) or N-type silicon (n+Si).
In addition, after the pixel electrode 334 that completes, also comprise the making, attaching polaroid etc. of other structure example as protective seam, it is comparatively known for those skilled in the art, does not repeat them here.
In addition, in the present embodiment, the method for making of liquid crystal indicator 300 also comprises: the common electric voltage providing interchange to the first public electrode 316 that this colored optical filtering substrates 303 is arranged, and provides the common electric voltage of direct current to the second public electrode 343 that this array base palte 301 is arranged.
In sum, the liquid crystal indicator that the present embodiment provides, by the second public electrode 343 on array base palte 301 being arranged on the 3rd insulation course 350 surface, second public electrode 343 is positioned at above data line 345, the electric field formed between the second public electrode 343 and data line 345 can be shielded, make the common electric voltage impact of the change in voltage on data line 345 on the first public electrode 316 that colored optical filtering substrates 303 is arranged very little, the common electric voltage of the first public electrode 316 therefore colored optical filtering substrates 303 arranged can be very stable, the liquid crystal arrangement near data line 345 can be made neat, decrease the light leak near data line 345, thus promote the aperture opening ratio of liquid crystal indicator, brightness and penetrance.
In addition, the common electric voltage of liquid crystal indicator owing to providing interchange to the first public electrode 316 that colored optical filtering substrates 303 is arranged of the embodiment of the present invention, and provide the common electric voltage of direct current to the second public electrode 343 that array base palte 301 is arranged, voltage difference between first public electrode 316 and the second public electrode 343 remains unchanged (as shown in Figure 4) substantially, so further make the Liquid Crystal Molecules Alignment near data line 345 neat, present light tight state, prevent the light leakage phenomena near data line 345, the aperture opening ratio of further lifting liquid crystal indicator, brightness and penetrance.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a liquid crystal indicator, is characterized in that, this liquid crystal indicator comprises: the colored optical filtering substrates that array base palte and this array base palte are oppositely arranged, be interposed in liquid crystal layer between this array base palte and this colored optical filtering substrates;
This colored optical filtering substrates comprises the black matrix, color blocking layer, the first public electrode and the flatness layer that arrange towards this array base palte surface;
This array base palte comprises multi-strip scanning line, cover first insulation course on this sweep trace surface, be arranged on the second insulation course of this first surface of insulating layer, many the data lines be parallel to each other being arranged on this first surface of insulating layer, be arranged on the 3rd insulation course on this first insulation course and this second surface of insulating layer and this data line surface, be arranged on the second public electrode of the 3rd surface of insulating layer, cover the 4th insulation course of this second public electrode and the 3rd surface of insulating layer, cover the pixel electrode of the 3rd insulation course and the 4th surface of insulating layer, wherein, this multi-strip scanning line and this plurality of data lines intersect to limit multiple pixel cell mutually, this pixel electrode also contacts with this data line.
2. liquid crystal indicator according to claim 1, it is characterized in that, this array base palte also offers a via hole, this via hole is positioned at directly over this data line also through the 3rd insulation course and the 4th insulation course, and the bottom of this via hole contacts with the surface of this data line, this pixel electrode is arranged on the internal face of this via hole, and this pixel electrode contacts with the data line surface being positioned at this via bottom.
3. liquid crystal indicator according to claim 1, is characterized in that, provides the common electric voltage of interchange to this first public electrode that this colored optical filtering substrates is arranged, and provides the common electric voltage of direct current to this second public electrode that this array base palte is arranged.
4. liquid crystal indicator according to claim 1, is characterized in that, the material of this first insulation course, the 3rd insulation course and the 4th insulation course is silicon nitride.
5. liquid crystal indicator according to claim 1, is characterized in that, this first public electrode, this second public electrode and this pixel electrode are electrically conducting transparent material.
6. a method for making for liquid crystal indicator, is characterized in that, it comprises:
The colored optical filtering substrates of liquid crystal indicator is provided, and on this colored filter substrate, forms black matrix, color blocking layer, the first public electrode and flatness layer successively;
Form the second substrate of glass of array base palte, above this second substrate of glass, form multi-strip scanning line, form the first insulation course on this sweep trace surface and this second glass basic surface, and form the second insulation course at this first surface of insulating layer;
Many the data lines be parallel to each other are formed at this first surface of insulating layer, the 3rd insulation course is formed on this first surface of insulating layer, this second surface of insulating layer and this data line surface, form the second public electrode at the 3rd surface of insulating layer, form the 4th insulation course on this second public electrode surface and the 3rd surface of insulating layer; And
Cover pixel electrode at the 3rd insulation course and the 4th surface of insulating layer, and this pixel electrode is contacted with this data line.
7. the method for making of liquid crystal indicator according to claim 6, it is characterized in that, this pixel electrode is contacted with this data line comprise: directly over this data line, offer one through the via hole of the 3rd insulation course with the 4th insulation course, and the bottom of this via hole contacts with the surface of this data line, this pixel electrode is formed at the internal face of this via hole, and this pixel electrode contacts with this data line surface being positioned at this via bottom, and cover the surface of the 3rd insulation course and the 4th insulation course.
8. the method for making of liquid crystal indicator according to claim 6, it is characterized in that, the method for making of liquid crystal indicator also comprises: the common electric voltage providing interchange to this first public electrode that this colored optical filtering substrates is arranged, and provides the common electric voltage of direct current to this second public electrode that this array base palte is arranged.
9. the method for making of liquid crystal indicator according to claim 6, is characterized in that, the material of this first insulation course, the 3rd insulation course and the 4th insulation course is silicon nitride.
10. the method for making of liquid crystal indicator according to claim 6, is characterized in that, this first public electrode, this second public electrode and this pixel electrode are electrically conducting transparent material.
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Applicant after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Applicant before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
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Application publication date: 20150722 |