CN102540587B - Liquid crystal display device having a plurality of pixel electrodes - Google Patents
Liquid crystal display device having a plurality of pixel electrodes Download PDFInfo
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- CN102540587B CN102540587B CN201010616771.5A CN201010616771A CN102540587B CN 102540587 B CN102540587 B CN 102540587B CN 201010616771 A CN201010616771 A CN 201010616771A CN 102540587 B CN102540587 B CN 102540587B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 113
- 239000000758 substrate Substances 0.000 claims abstract description 114
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- 239000011521 glass Substances 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000002161 passivation Methods 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 abstract 4
- 239000010409 thin film Substances 0.000 description 15
- 238000005240 physical vapour deposition Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
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- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
A liquid crystal display device includes a first substrate, a second substrate disposed opposite to the first substrate, a liquid crystal layer filled between the first substrate and the second substrate, a plurality of spacers disposed between the first and second substrates, and a first electrode and a second electrode disposed on opposite sidewalls of adjacent spacers. The invention reduces the distance between the pixel electrode and the common electrode arranged on the opposite side walls of the adjacent spacers by arranging three or more spacers in one pixel unit, reduces the driving voltage of the manufactured liquid crystal display device and enables the manufactured liquid crystal display device to be matched with the current commercial integrated circuit.
Description
Technical field
The present invention relates to lcd technology, more specifically, the present invention relates to a kind of liquid crystal indicator of level field counter-rotative type.
Background technology
By and large, based on the difference of liquid crystal deflecting element mode, liquid crystal indicator (hereinafter referred to as LCD) can be divided into two large classes: the first kind is that liquid crystal molecule deflects along the plane vertical with substrate, and Equations of The Second Kind is that liquid crystal molecule is along deflecting with the plane of substrate-parallel.
Typical first kind LCD is for reversing row to type liquid crystal indicator (being called for short TN-LCD), and its two electrodes had are arranged on two-plate respectively.The liquid crystal molecule of TN-LCD is generally configured to 90 degree of deflections, the feature such as have high transmission rate, low-power consume, technique is easy.But, because the liquid crystal near two-plate surface points to mutually vertical, make it show narrow visual angle.
Typical Second Type LCD is transverse electric field deflector type liquid crystal indicator (being called for short IPS-LCD) and fringing field deflector type liquid crystal indicator (being called for short FFS-LCD), their two electrodes are formed on same substrate, and liquid crystal points to along deflecting with the plane of substrate-parallel.Due to close at voltage state time, liquid crystal points to system horizontally or be parallel to substrate, and thus its viewing angle characteristic is improved.And because the field parallel in region between two electrodes is in the substrate of display, the plane deflection namely making liquid crystal be directed to parallel substrate makes it obtain high transmission rate.But, there is in the electric field of two electrode surface upper areas the component of very strong vertical electrode surface, the component of this strong vertical electrode surface can make liquid crystal molecule tilt in a direction perpendicular to a substrate but not make it in the plane torsion of parallel substrate, and then results in the region forming low penetration rate above electrode surface.
The liquid crystal indicator of a kind of level field counter-rotative type (Horizontal Field Switching) is proposed in prior art, although realize wide viewing angle, improve the penetrance of liquid crystal indicator, but because it is in the restriction of configuration aspects, need higher voltage driven, cannot mate with current commercial integrated circuit.
Summary of the invention
Technical matters to be solved by this invention is that the driving voltage of the horizontal component of electric field counter-rotative type liquid crystal indicator of prior art is higher, can not mate with current commercial integrated circuit.
For solving the problems of the technologies described above, the invention provides a kind of liquid crystal indicator, comprise: the second substrate that first substrate and first substrate are oppositely arranged and the liquid crystal layer be filled between first substrate and second substrate, it is characterized in that: described liquid crystal indicator also comprises multiple interval body be arranged between the first and second substrates, the opposing sidewalls of adjacent spaces body is respectively arranged with the first electrode and the second electrode drives described liquid crystal deflecting element to form transverse electric field.
Optionally, the described first substrate passivation layer that comprises glass substrate, be formed at the array layer on glass substrate and be formed on array layer.
Optionally, the ultimate range between described first electrode and the second electrode is 8 ~ 15 microns.
Optionally, described liquid crystal indicator comprises multiple pixel cell, and each pixel cell comprises three or three the above interval bodies, and the first electrode that adjacent spaces body opposing sidewalls is arranged and the second electrode.
Optionally, described multiple pixel cell becomes matrix to arrange, and same row pixel cell is along the arrangement of data line direction, and described interval body is along row to the striped stride body extended.
Optionally, space is formed between adjacent two interval bodies of adjacent two pixel cells of same row.
Optionally, the interval body in described pixel cell is all formed on first substrate.
Optionally, described first electrode is pixel electrode, and the second electrode is public electrode.
Optionally, when the electrode that the interval body sidewall in pixel cell is arranged is public electrode, described interval body is formed on second substrate; When the electrode that the interval body sidewall in pixel cell is arranged be a pixel electrode and a public electrode or be pixel electrode time, described interval body is formed on first substrate.
Optionally, described interval body is dike shape, and in an angle, described angle is more than or equal to 45 degree and is less than 90 degree for the waist of described dike shape and first substrate or second substrate shape.
Optionally, described interval body is the equal or finger-like not etc. of width in via area and/or near the part of via area, and the gap between the finger portion of described interval body is equal or not etc.
Optionally, the material forming described interval body is organic film material or silicon nitride material.
Optionally, the material forming described first electrode and the second electrode is transparent tin indium oxide or opaque metal.
Compared with prior art, the present invention has the following advantages: the present invention is by the distance between the pixel electrode that arranges more than three or three interval bodies reduce adjacent spaces body opposing sidewalls is arranged in a pixel cell and public electrode, and then produce larger electric field between the two electrodes when making to add less driving voltage between pixel electrode and public electrode, reduce the driving voltage between pixel electrode and public electrode needed for liquid crystal molecule upset be oppositely arranged, manufactured liquid crystal indicator is mated with current commercial integrated circuit.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the pixel cell structure schematic diagram of the liquid crystal indicator of first embodiment of the invention;
The pixel cell that Fig. 2 is liquid crystal indicator shown in Fig. 1 is along the cross-sectional view of A-A ' line;
The pixel cell that Fig. 3 is liquid crystal indicator shown in Fig. 1 is along the cross-sectional view of C-C ' line;
Fig. 4 is the pixel cell structure schematic diagram of the liquid crystal indicator of second embodiment of the invention;
The pixel cell that Fig. 5 is liquid crystal indicator shown in Fig. 4 is along the cross-sectional view of B-B ' line;
The pixel cell that Fig. 6 is liquid crystal indicator shown in Fig. 4 is along the cross-sectional view of D-D ' line;
Fig. 7 be third embodiment of the invention a row pixel cell between the structural representation of position relationship.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, therefore the present invention is not by the restriction of following public specific embodiment.
Just as described in the background section, although the liquid crystal indicator of of the prior art intrinsic deflection type achieves wide viewing angle, improve the penetrance of liquid crystal indicator, because it is in the restriction of configuration aspects, need higher voltage driven, cannot mate with current commercial integrated circuit.
Technical scheme of the present invention is by the distance between the pixel electrode that arranges more than three or three interval bodies reduce in pixel cell, adjacent spaces body opposing sidewalls to be arranged in a pixel cell and public electrode, the ultimate range between pixel electrode and public electrode is made to be 8 ~ 15 microns, and then produce larger electric field between the two electrodes when making to add less driving voltage between pixel electrode and public electrode, reduce the driving voltage between pixel electrode and public electrode needed for liquid crystal molecule upset be oppositely arranged, manufactured liquid crystal indicator is mated with current commercial integrated circuit.In addition, the interval body of via area is also designed to the equal or finger-like not etc. of width by the present invention, and make the gap between the finger portion of interval body equal or not etc., thus the surface of contact between the interval body increasing via area and the electrode being arranged on described via area interval body, prevent electrode from rupturing at via area place.
Be described in detail below by 3 embodiments, the pixel cell that wherein the first embodiment and the second embodiment contain three interval bodies for inside illustrates, the 3rd embodiment illustrates for a row pixel cell.
first embodiment:
Fig. 1 is the pixel cell structure schematic diagram of liquid crystal indicator according to a first embodiment of the present invention.The pixel cell that Fig. 2 is liquid crystal indicator shown in Fig. 1 is along the cross-sectional view of A-A ' line.The pixel cell that Fig. 3 is liquid crystal indicator shown in Fig. 1 is along the cross-sectional view of C-C ' line.
Please refer to Fig. 2, liquid crystal indicator assembles by clamping liquid crystal between first substrate 126 and second substrate 128.In the present embodiment, first substrate 126 is it is formed with the thin film transistor (TFT) (TFT as pixel switch, not shown) to drive the thin film transistor base plate of display device, second substrate 128 is it is formed with colored filter (not shown) with the filter sheet base plate of display color.
First substrate 126 is formed with interval body 102,104 and 106, after first substrate 126 and second substrate 128 are assembled mutually, interval body 102,104 and 106 on first substrate 126 can be resisted against on second substrate 128, to maintain the uniform intervals size between two substrates being oppositely arranged.
Interval body on first substrate 126 102,104 and 106 is in dike shape, and in an angle, described angle is more than or equal to 45 degree and be less than 90 degree for the waist of described dike shape and first substrate 126 or second substrate 128 shape.First substrate 126 and second substrate 128 are packed into liquid crystal molecule 130 after having assembled between interval body 102 and 104, interval body 104 and 106, form the liquid crystal layer being used for printing opacity or stoping light transmission.No matter with or without the effect of electric field, the sensing of liquid crystal molecule 230 is parallel with screen (i.e. second substrate 228) all the time; The effect of electric field makes liquid crystal molecule 230 be parallel to the rotation with in surface of screen.
Two sidewall surfaces that interval body 102 is relative with 104 are respectively arranged with the first electrode 103 and the second electrode 105, two sidewall surfaces that interval body 104 is relative with 106 are respectively arranged with the second electrode 107 and the first electrode 109, and wherein the first electrode 103 and the ultimate range between the second electrode 105, second electrode 107 and the first electrode 109 are 8 ~ 15 microns.As shown in Figure 2, the first electrode 103 is parallel with the boundary line of second substrate 128 with the second electrode 105 with the boundary line of second substrate 128, and the distance of these two parallel boundary lines is exactly the ultimate range between the first electrode 103 and the second electrode 105; Ultimate range between second electrode 107 and the first electrode 109 is also like this.
As can be seen from Fig. 1 and Fig. 2, pixel cell comprise interval body 102 and on the first electrode 103, interval body 104 and on the second electrode 105 and 107, interval body 106 and on the first electrode 109, and interval body 102, liquid crystal molecule between 104 and 106 and first substrate 126 and second substrate 128.
Interval body 102,104,106 can be organic film, silicon nitride or similar insulating material.In the forming process of interval body 102,104,106, between the sidewall of interval body 102,104,106 and first substrate 126, shape in an angle, this angle is preferably greater than or equal to 45 degree and is less than 90 degree, the transverse electric field that can make the first electrode 103 and formed between the second electrode 105, second electrode 107 and the first electrode 109 is more straight, less vertical component, can reduce the difficulty of making simultaneously.
In the present embodiment, the first electrode 103 and 109 is pixel electrode, and the second electrode 105 and 107 is public electrode.The material of pixel electrode and public electrode is transparent tin indium oxide (ITO), is deposited on interval body by the mode of PVD (Physical Vapor Deposition, physical vapour deposition (PVD)).It should be noted that, as other embodiment, the material of pixel electrode and public electrode also can be opaque metal, as aluminum or aluminum alloy.
First electrode 103 and the second electrode 105, second electrode 107 and the first electrode 109 under thin film transistor (TFT) controls respectively at the first electrode 103 with produce horizontal component of electric field between the second electrode 105, second electrode 107 and the first electrode 109.Horizontal component of electric field is along the liquid crystal molecule being parallel to first substrate 126, the direction of second substrate 128 drives liquid crystal layer, so no matter under which kind of state the sensing of liquid crystal molecule all parallel with screen (i.e. second substrate 128) all the time, be powering up/conventional sense under the yawing moment of liquid crystal molecule different.Because avoid the deflection of liquid crystal molecule on vertical direction (that is, with first substrate 126, direction that second substrate 128 is vertical), so liquid crystal indicator can reach larger visual angle.Because the first electrode 103, second electrode 105 and 107, first electrode 109 is separately positioned on the sidewall of interval body 102,104 and 106, instead of on first substrate 126 or second substrate 128, navigate within first substrate 126 and need not penetrate the first electrode 103 and 109, second electrode 105 and 107 already, even if thus also can not light be hindered for opaque material first electrode and the second electrode with the light of second substrate 128.
Moreover, because the first electrode 103 and 109, second electrode 105 and 107 is obliquely installed, thus opaque first electrode, the second electrode can stop the light therethrough of the two view field on substrate, and the two view field region that E-field normal component is larger just on substrate, also be the region causing light leak, so by arranging opaque electrode by this part regional occlusion, also can contrast be improved to a certain extent.
The passivation layer 122 that described first substrate 126 comprises glass substrate 124, is formed in the array layer 123 on glass substrate 124 and is formed on array layer 123.The thin film transistor (TFT) (not shown) being used as switching device that array layer 123 is formed with grid line (not shown), data line 132 and is electrical connected with grid line and data line.Described grid line, data line 132 and thin film transistor (TFT) are coated with black matrix, and described black matrix is made up of the black resin comprising carbon granule, because carbon granule has extinction characteristic, so black matrix can prevent light from revealing.
Please refer to Fig. 3, the first electrode 103 and 109 is pixel electrode, and these two electrodes are connected with the source/drain 134 of thin film transistor (TFT) by via hole 140 in the via area 120 of Fig. 1 liquid crystal indicator, with realize the first electrode 103 with 109 current potential be connected; Be public electrode at the second electrode 105 and 107, these two electrodes link together in the via area 120 of Fig. 1 liquid crystal indicator, are connected with common public electrode 136 by via hole 142, with realize the second electrode 105 with 107 current potential be connected.
After the first electrode 103 is connected with current potential with 107 with the 109, second electrode 105, at the first electrode 103 with there is electric potential difference between the second electrode 105, second electrode 107 and the first electrode 109, produce horizontal component of electric field, to keep the first electrode 103 and the liquid crystal molecule between the second electrode 105, second electrode 107 and the first electrode 109 regardless of all parallel with screen (i.e. second substrate 128) all the time under which kind of state.
It should be noted that, in liquid crystal indicator, interval body 102,104 and 106 can't run through whole unit picture element, as shown in fig. 1, but leave space at interval body 102,104 and 106 near thin film transistor (TFT) one end, liquid crystal molecule 130 circulates between each unit picture element by this space, thus ensures the homogeneity of liquid crystal molecule.In addition, as shown in Figure 1, described interval body 102 is divided into 102a and 102b two parts, and 102b is in via area 120 and/or near via area 120; Interval body 104 is divided into 104a and 104b two parts, and 104b is in via area 120 and/or near via area 120; And interval body 106 is divided into 106a and 106b two parts, 106b is in via area 120 and/or near via area 120.Be the equal or finger-like not etc. of width in via area 120 and/or near the both sides arranging the first electrode or the second electrode of interval body 102b, 104b and 106b of via area 120, and make the gap between the finger portion of interval body 102b, 104b and 106b equal or not etc., thus make interval body 102b, 104b and 106b and surface of contact between the first electrode of being arranged on interval body 102b, 104b and 106b or the second electrode becomes mild, prevent this place first electrode or the second lead rupture.
In another embodiment of the present invention, the electrode on interval body 104 can also be set to two pixel electrodes, now, the electrode of interval body 102,106 side relative to interval body 104 is public electrode; Or the electrode on interval body 104 is set to a pixel electrode and a public electrode, so, the electrode relative with pixel electrode on interval body 104 is public electrode, and the electrode relative with public electrode on interval body 104 is pixel electrode.In this embodiment, pixel electrode is connected with the source/drain of thin film transistor (TFT) in liquid crystal indicator, and public electrode is connected with common public electrode.
At the present embodiment by the distance between pixel electrode and public electrode that three interval bodies reduce adjacent spaces body opposing sidewalls is arranged will be arranged in a pixel cell, thus the voltage reduced between pixel electrode and public electrode needed for liquid crystal molecule upset, enable liquid crystal indicator utilize current commercial integrated circuit to drive.As other embodiment, pixel cell can also arrange the interval body of more than three, two sidewall surfaces that adjacent spaces body is relative arrange pixel electrode and public electrode respectively, the distance between adjacent spaces body comparative electrode can be reduced like this, and then suitably can reduce the driving voltage of liquid crystal indicator.
second embodiment:
Fig. 4 is the pixel cell structure schematic diagram of liquid crystal indicator according to a second embodiment of the present invention.The pixel cell that Fig. 5 is liquid crystal indicator shown in Fig. 4 is along the cross-sectional view of B-B ' line.The pixel cell that Fig. 6 is liquid crystal indicator shown in Fig. 4 is along the cross-sectional view of D-D ' line.
Please refer to Fig. 4, liquid crystal indicator assembles by clamping liquid crystal between first substrate 226 and second substrate 228.In the present embodiment, first substrate 226 is it is formed with thin film transistor (TFT) (not shown) to drive the thin film transistor base plate of display device, and second substrate 228 is it is formed with colored filter (not shown) with the filter sheet base plate of display color.
First substrate 226 is formed with interval body 202 and 206, second substrate 228 is formed interval body 204.Interval body 202 and 206 on first substrate 226 can be resisted against on second substrate 228, and the interval body 204 of second substrate 228 can against on first substrate 226.The setting of interval body 202,204 and 206, can maintain the uniform intervals size between two substrates opposed.
Interval body 202 and 206 on first substrate 226, the interval body 204 of second substrate 228 are all in dike shape, and just this interval body 202 is different from the direction that interval body 204 in the vertical direction is placed with 206.After first substrate 202 and second substrate 201 have been assembled, between interval body 202 and 204, interval body 204 and 206, be packed into liquid crystal molecule 230, form the liquid crystal layer being used for printing opacity or stoping light transmission.No matter with or without the effect of electric field, the sensing of liquid crystal molecule 230 is parallel with screen (i.e. second substrate 228) all the time; The effect of electric field makes liquid crystal molecule 230 be parallel to the rotation with in surface of screen.
Two sidewall surfaces that interval body 202 is relative with 204 deposit the first electrode 203 and the second electrode 205 respectively, two sidewall surfaces that interval body 204 is relative with 206 are respectively arranged with the second electrode 207 and the first electrode 209.Wherein, the first electrode 203 and the second electrode 205 and the ultimate range between the second electrode 207 and the first electrode 209 are all 8 ~ 15 microns.Pixel cell comprise interval body 202 and on the first electrode 203, interval body 204 and on the second electrode 205 and 207, interval body 206 and on the first electrode 209, and interval body 202, liquid crystal molecule between 204 and 206 and first substrate 226 and second substrate 228 form a pixel cell.
Interval body 202,204,206 can be organic film, silicon nitride or similar insulating material.In the forming process of interval body 202,204,206, shape in an angle between the sidewall of interval body 202,206 and first substrate 226 and between the sidewall of interval body 204 and second substrate 228, this angle is preferably greater than or equal to 45 degree and is less than 90 degree, the transverse electric field that can make the first electrode 203 and formed between the second electrode 205, second electrode 207 and the first electrode 209 is more straight, less vertical component, can reduce the difficulty of making simultaneously.
In the present embodiment, the first electrode 203 and 209 is pixel electrode, and the second electrode 205 and 207 is public electrode.The material of pixel electrode and public electrode is transparent tin indium oxide (ITO), is deposited on interval body by the mode of PVD (Physical Vapor Deposition, physical vapour deposition (PVD)).It should be noted that, as other embodiment, the material of pixel electrode and public electrode also can be opaque metal, as aluminum or aluminum alloy.
First electrode 203 and the second electrode 205, second electrode 207 and the first electrode 209 under thin film transistor (TFT) controls respectively at the first electrode 203 with produce horizontal component of electric field between the second electrode 205, second electrode 207 and the first electrode 209.Horizontal component of electric field is along the liquid crystal molecule being parallel to first substrate 226, the direction of second substrate 228 drives liquid crystal layer, so no matter under which kind of state the sensing of liquid crystal molecule all parallel with screen (i.e. second substrate 228) all the time, be powering up/conventional sense under the yawing moment of liquid crystal molecule different.Because avoid the deflection of liquid crystal molecule on vertical direction (namely with first substrate 226, direction that second substrate 228 is vertical), so liquid crystal indicator can reach larger visual angle.Because the first electrode 203, second electrode 205 and 207, first electrode 209 is separately positioned on the sidewall of interval body 202,204 and 206, instead of on first substrate 226 or second substrate 228, navigate within first substrate 226 and need not penetrate the first electrode 203 and 209, second electrode 205 and 207 already, even if thus also can not light be hindered for opaque material first electrode and the second electrode with the light of second substrate 228.
Because the first electrode 203 and 209, second electrode 205 and 207 is obliquely installed, thus opaque first electrode, the second electrode can light therethrough immediately below blocking electrode, and the region that immediately below electrode, E-field normal component is larger just, also be the region causing light leak, so by arranging opaque electrode by this part regional occlusion, also can contrast be improved to a certain extent.
The passivation layer 222 that described first substrate 226 comprises glass substrate 224, is formed in the array layer 223 on glass substrate 224 and is formed on array layer 223.The thin film transistor (TFT) (not shown) being used as switching device array layer 223 being formed with grid line (not shown), data line 232 and being electrical connected with grid line and data line.Described grid line, data line 232 and thin film transistor (TFT) are coated with black matrix, and described black matrix is made up of the black resin comprising carbon granule, because carbon granule has extinction characteristic, so black matrix can prevent light from revealing.Please refer to Fig. 6, the first electrode 203 and 209 is pixel electrode, and these two electrodes are connected with the drain electrode 234 of thin film transistor (TFT) by via hole 240 in the via area 220 of Fig. 4 liquid crystal indicator, with realize the first electrode 203 with 209 current potential be connected; Second electrode 205 and 207 is public electrode, and these two electrodes are arranged on the interval body 204 on second substrate 228, and its current potential is provided by second substrate 228.
After the first electrode 203 is connected with current potential with 207 with the 209, second electrode 205, at the first electrode 203 with there is electric potential difference between the second electrode 205, second electrode 207 and the first electrode 209, produce horizontal component of electric field, to keep the first electrode 203 and the liquid crystal molecule between the second electrode 205, second electrode 107 and the first electrode 109 regardless of all parallel with screen (i.e. second substrate 228) all the time under which kind of state.
It should be noted that, in liquid crystal indicator, interval body 202,204 and 206 can't run through whole unit picture element, as shown in Figure 4, but leave space at interval body 202,204 and 206 near thin film transistor (TFT) one end, liquid crystal molecule 230 circulates between each unit picture element by this space, thus ensures the homogeneity of liquid crystal molecule.In addition, as shown in Figure 4, described interval body 202 is divided into 202a and 202b two parts, and 202b is in via area 220 and/or near via area 220; Interval body 204 is divided into 204a and 204b two parts, and 204b is in via area 220 and/or near via area 220; And interval body 206 is divided into 206a and 206b two parts, 206b is in via area 220 and/or near via area 220.The both sides arranging the first electrode or the second electrode of interval body 202b, 204b and 206b in via area 220 are the equal or finger-like not etc. of width, and make the gap between the finger portion of interval body 202b, 204b and 206b equal or not etc., thus make interval body 202b, 204b and 206b and surface of contact between the first electrode of being arranged on interval body 202b, 204b and 206b or the second electrode becomes mild, prevent this place first electrode or the second lead rupture.
In the present embodiment, interval body both sides being public electrode is arranged on second substrate, and on this interval body, the current potential of public electrode is provided by second substrate.Simultaneously, by the ultimate range on adjacent spaces body opposite flank in pixel cell between pixel electrode and public electrode is controlled in 8 to 15 micrometer ranges, reduce the voltage needed for liquid crystal molecule upset between pixel electrode and public electrode, and then enable liquid crystal indicator utilize current commercial integrated circuit to drive.
3rd embodiment:
Fig. 7 be third embodiment of the invention a row pixel cell between the structural representation of position relationship.Please refer to Fig. 7, wherein, the line of horizontal expansion is grid line 1, and line extending longitudinally is data line 2.Be three adjacent pixel unit 301,302 and 303 row in pel array in Fig. 7.Pixel cell 301 comprises interval body 301a, 301b, 301c; Pixel cell 302 comprises interval body 302a, 302b, 302c; Pixel cell 303 comprises interval body 303a, 303b and 303c.All interval bodies are all designed to dike shape, and length direction is along data line 2.Above-mentioned interval body is provided with electrode 3, two sidewall surfaces that adjacent spaces body is relative are respectively pixel electrode and public electrode.Pixel cell 301 also comprises the electrode on interval body 301a and 301b, 301b and 301c opposing sidewall surfaces, and the liquid crystal molecule (not shown) between interval body; Pixel cell 302 also comprises the electrode on interval body 302a and 302b, 302b and 302c opposing sidewall surfaces, and the liquid crystal molecule between comparative electrode; Pixel cell 303 also comprises the electrode on interval body 303a and 303b, 303b and 303c opposing sidewall surfaces, and the liquid crystal molecule (not shown) between comparative electrode forms a pixel cell.In Fig. 7, three pixel cells form a line, and are provided with three interval bodies in each pixel cell.Interval body 301a, 301b and 301c of extending along data line 2 direction can't run through whole pixel cell, thus, space 310 can be there is between adjacent interval body 301b and 302b at same row, liquid crystal molecule circulates between each interval body by this space 310, thus ensures the homogeneity of liquid crystal molecule.In other examples, more than three interval bodies can also be set in a pixel cell, to reduce the distance between comparative electrode, and then reduce the driving voltage of liquid crystal display.
To sum up, the present invention is by the distance between the pixel electrode that arranges more than three or three interval bodies reduce adjacent spaces body opposing sidewalls is arranged in a pixel cell and public electrode, and then produce larger electric field between the two electrodes when making to add less driving voltage between pixel electrode and public electrode, reduce the driving voltage between pixel electrode and public electrode needed for liquid crystal molecule upset be oppositely arranged, manufactured liquid crystal indicator is mated with current commercial integrated circuit.In addition, the interval body of via area is also designed to the equal or finger-like not etc. of width by the present invention, and make the gap between the finger portion of interval body equal or not etc., thus make interval body and the surface of contact be arranged between the electrode on described interval body becomes mild, prevent this place's electrode from rupturing at via area place.
Disclose as above with preferred embodiment although the present invention is own, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (12)
1. a liquid crystal indicator, it comprises; The second substrate that first substrate and first substrate are oppositely arranged and the liquid crystal layer be filled between first substrate and second substrate, it is characterized in that: described liquid crystal indicator also comprises multiple interval body be arranged between the first and second substrates, the opposing sidewalls of adjacent spaces body is respectively arranged with the first electrode and the second electrode drives described liquid crystal deflecting element to form transverse electric field, ultimate range between described first electrode and the second electrode is 8 ~ 15 microns, and described interval body is dike shape; Described interval body is the equal or finger-like not etc. of width in via area and/or near the part of via area.
2. liquid crystal indicator as claimed in claim 1, it is characterized in that, described first substrate comprises: glass substrate, the passivation layer being formed at the array layer on glass substrate and being formed on array layer.
3. liquid crystal indicator as claimed in claim 1, it is characterized in that, described liquid crystal indicator comprises multiple pixel cell, and each pixel cell comprises three or three the above interval bodies, and the first electrode that adjacent spaces body opposing sidewalls is arranged and the second electrode.
4. liquid crystal indicator as claimed in claim 3, it is characterized in that, described multiple pixel cell becomes matrix to arrange, and same row pixel cell is along the arrangement of data line direction, and described interval body is along row to the striped stride body extended.
5. liquid crystal indicator as claimed in claim 4, is characterized in that, be formed with space between adjacent two interval bodies of adjacent two pixel cells of same row.
6. liquid crystal indicator as claimed in claim 5, it is characterized in that, the interval body in described pixel cell is all formed on first substrate.
7. liquid crystal indicator as claimed in claim 3, it is characterized in that, described first electrode is pixel electrode, and the second electrode is public electrode.
8. liquid crystal indicator as claimed in claim 7, it is characterized in that, when the electrode that the interval body sidewall in pixel cell is arranged is public electrode, described interval body is formed on second substrate; When the electrode that the interval body sidewall in pixel cell is arranged be a pixel electrode and a public electrode or be pixel electrode time, described interval body is formed on first substrate.
9. liquid crystal indicator as claimed in claim 1, is characterized in that, in an angle, described angle is more than or equal to 45 degree and be less than 90 degree for the waist of described dike shape and first substrate or second substrate shape.
10. liquid crystal indicator as claimed in claim 1, is characterized in that, the gap between the finger portion of described interval body is equal or not etc.
11. liquid crystal indicators as claimed in claim 1, is characterized in that, the material forming described interval body is organic film material or silicon nitride material.
12. liquid crystal indicators as claimed in claim 1, is characterized in that, the material forming described first electrode and the second electrode is transparent tin indium oxide or opaque metal.
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| CN201010616771.5A CN102540587B (en) | 2010-12-30 | 2010-12-30 | Liquid crystal display device having a plurality of pixel electrodes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010616771.5A CN102540587B (en) | 2010-12-30 | 2010-12-30 | Liquid crystal display device having a plurality of pixel electrodes |
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| CN111103735A (en) * | 2020-01-10 | 2020-05-05 | Oppo广东移动通信有限公司 | Horizontal electric field type display panel and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1527113A (en) * | 2003-03-04 | 2004-09-08 | 友达光电股份有限公司 | Wide viewing angle planar LCD |
| CN102262322A (en) * | 2010-05-24 | 2011-11-30 | 上海天马微电子有限公司 | Liquid crystal display device and liquid crystal display device substrate |
| CN102566147A (en) * | 2010-12-27 | 2012-07-11 | 上海天马微电子有限公司 | Liquid crystal display device and method for forming the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001330843A (en) * | 2000-05-22 | 2001-11-30 | Casio Comput Co Ltd | Liquid crystal display device |
| CN1538211A (en) * | 2003-04-18 | 2004-10-20 | 鸿富锦精密工业（深圳）有限公司 | Liquid crystal display device with transverse electric field |
| JP2008180956A (en) * | 2007-01-25 | 2008-08-07 | Seiko Epson Corp | Liquid crystal device, method of manufacturing the same and electronic apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1527113A (en) * | 2003-03-04 | 2004-09-08 | 友达光电股份有限公司 | Wide viewing angle planar LCD |
| CN102262322A (en) * | 2010-05-24 | 2011-11-30 | 上海天马微电子有限公司 | Liquid crystal display device and liquid crystal display device substrate |
| CN102566147A (en) * | 2010-12-27 | 2012-07-11 | 上海天马微电子有限公司 | Liquid crystal display device and method for forming the same |
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