CN103135294A - Pixel structure of liquid crystal display panel - Google Patents
Pixel structure of liquid crystal display panel Download PDFInfo
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- CN103135294A CN103135294A CN2013100178828A CN201310017882A CN103135294A CN 103135294 A CN103135294 A CN 103135294A CN 2013100178828 A CN2013100178828 A CN 2013100178828A CN 201310017882 A CN201310017882 A CN 201310017882A CN 103135294 A CN103135294 A CN 103135294A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 37
- 230000003247 decreasing effect Effects 0.000 claims description 27
- 230000005684 electric field Effects 0.000 description 26
- 238000010586 diagram Methods 0.000 description 21
- 238000010606 normalization Methods 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 230000000007 visual effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910003471 inorganic composite material Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a pixel structure of a liquid crystal display panel, which comprises a first substrate, a first electrode, a dielectric layer, a second electrode, a second substrate and a liquid crystal layer. The first electrode is disposed on the first substrate. The dielectric layer is arranged on the first substrate and covers the first electrode. The second electrode is disposed on the dielectric layer. The second electrode comprises at least one main electrode, a plurality of branch electrodes connected with the main electrode, and a plurality of slits respectively formed between the adjacent branch electrodes. The second substrate is disposed opposite to the first substrate. The liquid crystal layer is arranged between the second electrode and the second substrate and comprises a plurality of negative vertical alignment liquid crystal molecules.
Description
Technical field
The present invention relates to a kind of dot structure of display panels, especially relate to a kind of dot structure that uses the edge electric field pattern display panels of minus vertical orientation liquid crystal molecule.
Background technology
Along with lcd technology constantly improves, display panels is used on flat-surface television, notebook, smart mobile phone and all types of consumption electronic products widely.For the too small shortcoming in the visual angle that solves the available liquid crystal display panel, industry is developed liquid crystal display panel with wide visual angle.Yet existing liquid crystal display panel with wide visual angle has the shortcomings such as manufacturing engineering complexity, dislocation point and the colour cast when direction is watched with great visual angle (color washout), and still to be further improved.
Summary of the invention
One of purpose of the present invention is to provide a kind of dot structure of display panels, to solve the colour cast problem and a little the generation of avoiding misplacing.
One embodiment of the invention provide a kind of dot structure of display panels, comprise first substrate, the first electrode, dielectric layer, the second electrode, second substrate and liquid crystal layer.The first electrode is arranged on first substrate.Dielectric layer is arranged on first substrate and covers the first electrode.The second electrode is arranged on dielectric layer.The second electrode comprises that at least one trunk electrode, many branch electrodes are connected with the trunk electrode, and many slits are formed at respectively between adjacent branch electrodes.Second substrate and first substrate are in the face of arranging.Liquid crystal layer is arranged between the second electrode and second substrate, and liquid crystal layer comprises a plurality of minus vertical orientation liquid crystal molecules.
Description of drawings
Fig. 1 shows the diagrammatic cross-section of dot structure of the display panels of the first embodiment of the present invention;
Fig. 2 shows the schematic top plan view of the second electrode of dot structure of the display panels of the first embodiment of the present invention;
Fig. 3 shows the predetermined GTG value of dot structure of display panels of a comparative examples of the present invention and the graph of a relation of normalization penetrance;
Fig. 4 shows the predetermined GTG value of dot structure of display panels of the first embodiment of the present invention and the graph of a relation of normalization penetrance;
Fig. 5 shows the schematic diagram of dot structure of display panels of the alternate embodiment of the first embodiment of the present invention;
Fig. 6 shows the predetermined GTG value of dot structure of display panels of alternate embodiment of the first embodiment of the present invention and the graph of a relation of normalization penetrance;
Fig. 7 shows the schematic diagram of dot structure of the display panels of the second embodiment of the present invention;
Fig. 8 shows the schematic diagram of dot structure of display panels of the first alternate embodiment of the second embodiment of the present invention;
Fig. 9 shows the schematic diagram of dot structure of display panels of the second alternate embodiment of the second embodiment of the present invention;
Figure 10 shows the schematic diagram of dot structure of display panels of the 3rd alternate embodiment of the second embodiment of the present invention;
Figure 11 shows the schematic diagram of dot structure of the display panels of the third embodiment of the present invention;
Figure 12 shows the schematic diagram of dot structure of display panels of the first alternate embodiment of the third embodiment of the present invention;
Figure 13 shows the schematic diagram of dot structure of display panels of the second alternate embodiment of the third embodiment of the present invention;
Figure 14 shows the schematic diagram of dot structure of display panels of the 3rd alternate embodiment of the third embodiment of the present invention;
Figure 15 shows the schematic diagram of dot structure of the display panels of the fourth embodiment of the present invention.
Reference numeral
1: the dot structure 10 of display panels: first substrate
Electrode 20 in 16: the second: second substrate
22: liquid crystal layer LC: minus vertical orientation liquid crystal molecule
16M: trunk electrode 16B: branch electrodes
16S: slit S: gap
L: width 1 ': the dot structure of display panels
16B1: the first branch electrodes 16B2: the second branch electrodes
16B3: the 3rd branch electrodes L1: the first width
L2: the second width L3: the 3rd width
16S1: the first slit 16S2: the second slit
16S3: the 3rd slit
Embodiment
For making the those skilled in the art that are familiar with the technical field of the invention can further understand the present invention, following spy enumerates preferred embodiment of the present invention, and coordinates appended accompanying drawing, the effect that describes constitution content of the present invention in detail and will reach.In addition, accompanying drawing is not mapped according to life size or ratio only for the purpose of description.Each following embodiment is with fringe field switch type (fringe field switching, FFS) dot structure of display panels is as example, but the dot structure of display panels of the present invention is not as limit, and can be the dot structure of the horizontal electric field type display panels of other type, the dot structure of plane switch type (in-plane switching, IPS) display panels for example.
Please refer to Fig. 1 and Fig. 2.Fig. 1 shows the diagrammatic cross-section of dot structure of the display panels of the first embodiment of the present invention, and Fig. 2 shows the schematic top plan view of the second electrode of dot structure of the display panels of the first embodiment of the present invention.As Fig. 1 and shown in Figure 2, the dot structure 1 of the display panels of the present embodiment comprises first substrate 10, the first electrode 12, dielectric layer 14, the second electrode 16, second substrate 20 and liquid crystal layer 22.First substrate 10 is transparency carrier, and first substrate 10 can be hard substrate for example glass substrate or quartz base plate, or flexible base plate plastic base for example.The first electrode 12 is arranged on first substrate 10, and the first electrode 12 is better can be whole electrode, and it is one complete and have continuously and not the electrode of slit or opening, but not as limit.Dielectric layer 14 is arranged on first substrate 10 and covers the first electrode 12.Dielectric layer 14 can be individual layer dielectric layer or multilayer dielectric layer, and its material can be Inorganic Dielectric Material for example monox, silicon nitride, silicon oxynitride or organic dielectric materials, or the organic/inorganic composite material.The second electrode 16 is arranged on dielectric layer 14, and electrically separates with the first electrode 12 by dielectric layer 14.Wherein at least one can be transparency electrode for the first electrode 12 and the second electrode 16, above-mentioned two electrodes wherein at least one structure can be single or multiple lift, and above-mentioned two electrodes are at least one material wherein, for example tin indium oxide (ITO) electrode, indium zinc oxide (IZO) electrode, but not as limit.Second substrate 20 is faced with first substrate 10 and is arranged.Second substrate 20 can be hard substrate for example glass substrate or quartz base plate, or flexible base plate plastic base for example, and, do not exist any in order to control the transparency electrode that in liquid crystal layer 22, liquid crystal molecule rotates on second substrate 20.Liquid crystal layer 22 is arranged between the second electrode 16 and second substrate 20, and liquid crystal layer 22 comprises a plurality of minus vertical orientation liquid crystal molecule LC.The dielectric anisotropy of negative type liquid crystal molecule (dielectric anisotropy, △ ε) is less than 0, and the vertical orientation liquid crystal molecule has high-contrast.Second electrode 16 of the present embodiment comprises that at least one trunk electrode 16M(Fig. 1 does not show), and many branch electrodes 16B are connected with trunk electrode 16M.In addition, has respectively slit (slit) 16S between adjacent branch electrodes 16B.In the present embodiment, the gap S of slit 16S between wantonly two adjacent branch electrodes 16B is equal, and gap S is the fixed interval (FI), that is to say, the slit 16S of second electrode 16 of the present embodiment is single gap design, and the gap S of all slit 16S all equates.In addition, all branch electrodes 16B can have identical width L.In the present embodiment, the width L of branch electrodes 16B and the gap S of slit 16S can have following relationship: 0.3≤L/S≤3, but not as limit.
The first electrode 12 of the dot structure 1 of display panels is respectively the electrode with two kinds of different voltages from the second electrode 16, and can control with identical or different thin film transistor (TFT) (TFT) respectively.That is to say, mutually separate on the first electrode 12 and the second electrode 16 structures, and have interval (gap) existence between the first electrode 12 and the second electrode 16.For instance, in the present embodiment, the first electrode 12 is common electrode, and it has common electric voltage, and the second electrode 16 is pixel electrode, and it has data voltage.In an alternate embodiment, the first electrode 12 is pixel electrode, and it has data voltage, and the second electrode 16 is common electrode, and it has common electric voltage.In another alternate embodiment, the first electrode 12 and the second electrode 16 can be respectively the first pixel electrode and the second pixel electrode, it can be controlled by different thin film transistor (TFT)s respectively and make it have different voltage to drive the liquid crystal molecule in liquid crystal layer 22, perhaps use the same thin film transistor, for example arrange in pairs or groups capacitance coupling effect or other mode make it have different voltage to drive the liquid crystal molecule in liquid crystal layer 22 again.The dot structure 1 of the display panels of the present embodiment uses minus vertical orientation liquid crystal molecule LC, is not having under the state of potential difference (PD), and minus vertical orientation liquid crystal molecule LC is vertical orientation; Under the driving of the formed fringe field of potential difference (PD) of the first electrode 12 and the second electrode 16, minus vertical orientation liquid crystal molecule LC can topple over along the multiple directions on surface level, therefore can have the effect of multizone orientation, and can effectively suppress the colour cast problem.
The dot structure 1 of display panels of the present invention can separately comprise display panels must the configuration display element such as gate line, data line, capacitor storage beam, active switching element, alignment film, colored filter, black matrix pattern and polaroid etc., its function and configuration etc. do not repeat them here by the personnel that this field has common knowledge are known.
Please refer to Fig. 3 and Fig. 4.Fig. 3 shows the predetermined GTG value of dot structure of display panels of a comparative examples of the present invention and the graph of a relation of normalization penetrance (normalized transmittance), and Fig. 4 shows the predetermined GTG value of dot structure of display panels of the first embodiment of the present invention and the graph of a relation of normalization penetrance.The dot structure of the display panels of comparative examples of the present invention uses eurymeric vertical orientation liquid crystal molecule (dielectric anisotropy (dielectric anisotropy, △ ε) is greater than 0).Eurymeric vertical orientation liquid crystal molecule is not having under the state of potential difference (PD), and eurymeric vertical orientation liquid crystal molecule LC is vertical orientation; Under the driving of the formed fringe field of potential difference (PD) of data voltage and common electric voltage, eurymeric vertical orientation liquid crystal molecule LC can topple over along the single direction on surface level, does not therefore have the effect of multizone orientation.In Fig. 3, the dot structure of display panels that curve A has shown comparative examples on main apparent direction predetermined GTG value and the relation of normalization penetrance; The dot structure (gap that the width of branch electrodes is about 4 microns and slit is about 4 microns) that curve B has shown the display panels of comparative examples on the side-looking direction predetermined GTG value and the relation of normalization penetrance; And curve C shown the display panels of comparative examples dot structure (gap that the width of branch electrodes is about 8 microns and slit is about 8 microns) on the side-looking direction predetermined GTG value and the relation of normalization penetrance.As shown in Figure 3, simulation result has shown that the dot structure of the display panels of the comparative examples of using eurymeric vertical orientation liquid crystal molecule has significant colour cast problem in the side-looking direction.
In Fig. 4, curve A ' shown the first embodiment the dot structure of display panels on main apparent direction predetermined GTG value and the relation of normalization penetrance; Curve B ' shown the display panels of the first embodiment dot structure (gap that the width of branch electrodes is about 3 microns and slit is about 3 microns) on the side-looking direction predetermined GTG value and the relation of normalization penetrance; Curve C ' shown the display panels of the first embodiment dot structure (gap that the width of branch electrodes is about 4 microns and slit is about 4 microns) on the side-looking direction predetermined GTG value and the relation of normalization penetrance; Curve D ' shown the display panels of the first embodiment dot structure (gap that the width of branch electrodes is about 5 microns and slit is about 6 microns) on the side-looking direction predetermined GTG value and the relation of normalization penetrance; And curve E ' shown the display panels of the first embodiment dot structure (gap that the width of branch electrodes is about 6 microns and slit is about 6 microns) on the side-looking direction predetermined GTG value and the relation of normalization penetrance.As shown in Figure 4, simulation result has shown that the dot structure of the display panels of the first embodiment that uses minus vertical orientation liquid crystal molecule has significant improvement in the colour cast problem of side-looking direction.
Please refer to Fig. 5.Fig. 5 shows the schematic diagram of dot structure of display panels of the alternate embodiment of the first embodiment of the present invention.As shown in Figure 5, be different from the first embodiment, in the dot structure 1 ' of the display panels of this alternate embodiment, the branch electrodes 16B of the second electrode 16 can be distinguished into multiple branch electrodes with different in width.For example, the branch electrodes 16B of the present embodiment comprises the first branch electrodes 16B1, the second branch electrodes 16B2 and the 3rd branch electrodes 16B3.The first branch electrodes 16B1 has the first width L1, and the second branch electrodes 16B2 has the second width L2, and the 3rd branch electrodes 16B3 has the 3rd width L3, and the first width L1, the second width L2 are with the 3rd width L3 three is neither equates.In addition, the slit 16S of the second electrode 16 can be distinguished into multiple slit with different gap.For example, the slit 16S of second electrode 16 of the present embodiment comprises the first slit 16S1, the second slit 16S2 and the 3rd slit 16S3, the first slit 16S1 has the first gap S1, the second slit 16S2 has the second gap S2, the 3rd slit 16S3 has third space S3, and the first gap S1, the second gap S2 equate with third space S3 three is neither.The first gap S1, the second gap S2 and third space S3 are the fixed interval (FI).In this alternate embodiment, the first width L1, the second width L2 and the 3rd width L3 and the first gap S1, the second gap S2 and third space S3 can have following relationship: 0.3≤L1/S1≤3,0.3≤L2/S2≤3 and 0.3≤L3/S3≤3.In other embodiments, the first width L1, the second width L2 and the 3rd width L3 and the first gap S1, the second gap S2 and third space S3 can have following relationship: 0.5≤L1/S1≤1.5,1≤L2/S2≤3 and 1≤L3/S3≤3, be preferably: L1/S1=1, L2/S2=2 and L3/S3=1.5, but not as limit.The slit 16S of second electrode 16 of the present embodiment is multiple gap design, has the effect of better multizone orientation, and can effectively suppress the colour cast problem.
Please refer to Fig. 6.Fig. 6 shows the predetermined GTG value of dot structure of display panels of alternate embodiment of the first embodiment of the present invention and the graph of a relation of normalization penetrance.In Fig. 6, curve A " shown alternate embodiment the dot structure of display panels on main apparent direction predetermined GTG value and the relation of normalization penetrance; Curve B " shown the display panels of alternate embodiment dot structure (L1/S1=1, L2/S2=2, L3/S3=1.5) on the side-looking direction predetermined GTG value and the relation of normalization penetrance; And curve C " shown the display panels of alternate embodiment dot structure (L1/S1=1, L2/S2=0.6, L3/S3=2.5) on the side-looking direction predetermined GTG value and the relation of normalization penetrance.As shown in Figure 6, simulation result has shown that the dot structure of the display panels of the alternate embodiment of using minus vertical orientation liquid crystal molecule has significant improvement in the colour cast problem of side-looking direction.
The dot structure of display panels of the present invention is not limited with above-described embodiment.Below will sequentially introduce the dot structure of the display panels of other preferred embodiment of the present invention, and for the ease of relatively different place and the simplified illustration of each embodiment, use the identical identical element of symbol mark in each following embodiment, and the different place mainly for each embodiment describes, and no longer repeating part is given unnecessary details.In addition, the accompanying drawing of each following embodiment illustrates the partial enlarged drawing of the second electrode, therefore please in the lump with reference to the schematic diagram of figure 1 with the dot structure of display panels illustrated in fig. 2.
Please refer to Fig. 7.Fig. 7 shows the schematic diagram of dot structure of the display panels of the second embodiment of the present invention.As shown in Figure 7, in a second embodiment, the branch electrodes 16B of the second electrode 16 comprises many first branch electrodes 16B1 and many second branch electrodes 16B2.The first branch electrodes 16B1 and the second branch electrodes 16B2 are alternative arrangement, the first branch electrodes 16B1 has the first width L1, the second branch electrodes 16B2 has the second width L2, wherein the first width L1 is fixed width, and the second width L2 is successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M.Whereby, the gap S of each slit 16S is by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.In addition, in the present embodiment, the second width L2 of each second branch electrodes 16B2 is by successively decreasing near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside (discretely) away from trunk electrode 16M.For example, the first branch electrodes 16B1 can be for example vertical bar shape electrode, its first width L1 is fixed width, and the second branch electrodes 16B2 can be a stepped electrode, its second width L2 (that is to say by successively decreasing away from the uncontinuity ground, the outside of trunk electrode 16M near the interior side direction of trunk electrode 16M, the second width L2 has a plurality of different width values), gap S can be by increasing progressively near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside away from trunk electrode 16M whereby.The width value of the second width L2 can optionally be adjusted, for example two different width values, three different width values or more width value.
The slit of the second electrode of the dot structure of the display panels of the present embodiment has the gap design of successively decreasing, be to avoid the to misplace generation of point (disclination node) of its purpose.So-called dislocation point refers in the situation that electrode has the fixed interval (FI), can be indefinite and produce dim spot at the toppling direction of the liquid crystal molecule of some position.For example, in a pixel region, the liquid crystal molecule in the centre position of close branch electrodes, can be subject to the impact of the driving voltage of the driving voltage of the trunk electrode in same pixel region and the trunk electrode in another neighbor district, and the liquid crystal molecule that makes this position can be subject to the impact of the different electric field of both direction, in case the intensity of this two electric field near the time can mutually offset, the toppling direction of liquid crystal molecule will be indefinite and produce dim spot.The degree of toppling over of liquid crystal molecule depends on the electric field intensity that is subject to, and electric field intensity (E), driving voltage (V) and electrode separation (d) have following relationship: E=V/d.That is to say, under identical driving voltage, electric field intensity and electrode separation are inverse relation.In the present embodiment,, therefore successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M corresponding to the electric field intensity of gap S by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M due to gap S.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of can effectively avoiding misplacing, and then improves display quality.
Please refer to Fig. 8.Fig. 8 shows the schematic diagram of dot structure of display panels of the first alternate embodiment of the second embodiment of the present invention.As shown in Figure 8, be different from the second embodiment, in the first alternate embodiment, the second electrode 16 comprises many branch electrodes 16B, each branch electrodes 16B has a width L, and width L is by successively decreasing near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside away from trunk electrode 16M.For example, each branch electrodes 16B can be stepped electrode, but not as limit.Whereby, the gap S of each slit 16S is by increasing progressively near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside away from trunk electrode 16M.Therefore successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M corresponding to the electric field intensity of gap S.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of can effectively avoiding misplacing, and then improves display quality.
Please refer to Fig. 9.Fig. 9 shows the schematic diagram of dot structure of display panels of the second alternate embodiment of the second embodiment of the present invention.As shown in Figure 9, in the second alternate embodiment, the branch electrodes 16B of the second electrode 16 comprises many first branch electrodes 16B1 and many second branch electrodes 16B2.The first branch electrodes 16B1 and the second branch electrodes 16B2 are alternative arrangement, the first branch electrodes 16B1 has the first width L1, the second branch electrodes 16B2 has the second width L2, wherein the first width L1 is fixed width, and the second width L2 is successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M.Whereby, the gap S of each slit 16S is by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.In addition, in the second alternate embodiment, the second width L2 of each second branch electrodes 16B2 is by successively decreasing near the interior side direction of the trunk electrode 16M continuity ground, the outside (continuously) away from trunk electrode 16M.For example, the first branch electrodes 16B1 can be for example vertical bar shape electrode, its first width L1 is fixed width, and the second branch electrodes 16B2 can be a trapezoidal electrode, its second width L2 is by successively decreasing near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M, and gap S can be by increasing progressively near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M whereby.Therefore successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M corresponding to the electric field intensity of gap S.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of can effectively avoiding misplacing, and then improves display quality.
Please refer to Figure 10.Figure 10 shows the schematic diagram of dot structure of display panels of the 3rd alternate embodiment of the second embodiment of the present invention.As shown in figure 10, be different from the second alternate embodiment, in the 3rd alternate embodiment, the second electrode 16 comprises many branch electrodes 16B, each branch electrodes 16B has a width L, and width L is by successively decreasing near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M.For example, each branch electrodes 16B can be trapezoidal electrode, but not as limit.Whereby, the gap S of each slit 16S is by increasing progressively near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M.Therefore successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M corresponding to the electric field intensity of gap S.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of can effectively avoiding misplacing, and then improves display quality.
Please refer to Figure 11.Figure 11 shows the schematic diagram of dot structure of the display panels of the third embodiment of the present invention.As shown in figure 11, in the 3rd embodiment, the branch electrodes 16B of the second electrode 16 comprises many first branch electrodes 16B1 and many second branch electrodes 16B2.The first branch electrodes 16B1 and the second branch electrodes 16B2 are alternative arrangement, the first branch electrodes 16B1 has the first width L1, the second branch electrodes 16B2 has the second width L2, wherein the first width L1 is fixed width, and the second width L2 is by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.Whereby, the gap S of each slit 16S is successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M.In addition, in the present embodiment, the second width L2 of each second branch electrodes 16B2 is by increasing progressively near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside away from trunk electrode 16M.For example, the first branch electrodes 16B1 can be for example vertical bar shape electrode, its first width L1 is fixed width, and the second branch electrodes 16B2 can be a stepped electrode, its second width L2 is by increasing progressively near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside away from trunk electrode 16M, and gap S can be by successively decreasing near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside away from trunk electrode 16M whereby.
In the present embodiment, due to gap S by successively decreasing away from the outside of trunk electrode 16M near the interior side direction of trunk electrode 16M, therefore corresponding to the electric field intensity of gap S by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of effectively avoiding misplacing, and then improves display quality.
Please refer to Figure 12.Figure 12 shows the schematic diagram of dot structure of display panels of the first alternate embodiment of the third embodiment of the present invention.As shown in figure 12, be different from the second embodiment, in the first alternate embodiment, the second electrode 16 comprises many branch electrodes 16B, each branch electrodes 16B has a width L, and width L is by increasing progressively near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside away from trunk electrode 16M.For example, each branch electrodes 16B can be stepped electrode, but not as limit.Whereby, the gap S of each slit 16S is by successively decreasing near the interior side direction of the trunk electrode 16M uncontinuity ground, the outside away from trunk electrode 16M.Therefore corresponding to the electric field intensity of gap S by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of effectively avoiding misplacing, and then improves display quality.
Please refer to Figure 13.Figure 13 shows the schematic diagram of dot structure of display panels of the second alternate embodiment of the third embodiment of the present invention.As shown in figure 13, in the second alternate embodiment, the branch electrodes 16B of the second electrode 16 comprises many first branch electrodes 16B1 and many second branch electrodes 16B2.The first branch electrodes 16B1 and the second branch electrodes 16B2 are alternative arrangement, the first branch electrodes 16B1 has the first width L1, the second branch electrodes 16B2 has the second width L2, wherein the first width L1 is fixed width, and the second width L2 is by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.Whereby, the gap S of each slit 16S is successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M.In addition, in the second alternate embodiment, the second width L2 of each second branch electrodes 16B2 is by increasing progressively near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M.For example, the first branch electrodes 16B1 can be for example vertical bar shape electrode, its first width L1 is fixed width, and the second branch electrodes 16B2 can be a trapezoidal electrode, its second width L2 is by increasing progressively near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M, and gap S can be by successively decreasing near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M whereby.Therefore corresponding to the electric field intensity of gap S by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of effectively avoiding misplacing, and then improves display quality.
Please refer to Figure 14.Figure 14 shows the schematic diagram of dot structure of display panels of the 3rd alternate embodiment of the third embodiment of the present invention.As shown in figure 14, be different from the second alternate embodiment, in the 3rd alternate embodiment, the second electrode 16 comprises many branch electrodes 16B, each branch electrodes 16B has a width L, and width L is by increasing progressively near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M.For example, each branch electrodes 16B can be trapezoidal electrode, but not as limit.Whereby, the gap S of each slit 16S is by successively decreasing near the interior side direction of the trunk electrode 16M continuity ground, the outside away from trunk electrode 16M.Therefore corresponding to the electric field intensity of gap S by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of effectively avoiding misplacing, and then improves display quality.
Please refer to Figure 15.Figure 15 shows the schematic diagram of dot structure of the display panels of the fourth embodiment of the present invention.As shown in figure 15, in the 4th embodiment, the branch electrodes 16B of the second electrode 16 comprises many first branch electrodes 16B1 and many second branch electrodes 16B2, wherein the first branch electrodes 16B1 and the second branch electrodes 16B2 are alternative arrangement, and the first branch electrodes 16B1 has the first width L1, and the second branch electrodes 16B2 has one second width L2, the first width L1 is a fixed width, the second width L2 is a fixed width, and the first width L1 can equal the second width L2, but not as limit.The first branch electrodes 16B1 is parallel to each other substantially, and the second branch electrodes 16B2 is parallel to each other substantially, and the first branch electrodes 16B1 and the second branch electrodes 16B2 not parallel.In the present embodiment, indivedual bearing of trends of the first branch electrodes 16B1 and the second branch electrodes 16B2 can consist of in fact V-type, but not as limit.In addition, slit 16S comprises a plurality of the first slit 16S1 and a plurality of the second slit 16S2, and wherein the first slit 16S1 and the second slit 16S2 are alternative arrangement.Each first slit 16S1 has one first gap S1, and each first gap S1 is by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M, each second slit 16S2 has one second gap S2, and each second gap S2 is successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M.
In the present embodiment, due to the first gap S1 by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M, and the first gap S2 is successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M, therefore successively decreased away from the outside of trunk electrode 16M by the interior side direction near trunk electrode 16M corresponding to the electric field intensity of the first gap S1, and corresponding to the electric field intensity of the second gap S2 by increasing progressively near the interior side direction of the trunk electrode 16M outside away from trunk electrode 16M.Under this situation, the liquid crystal molecule in any position all can be subject to the driving of unidirectional electric field and a little the formation of effectively avoiding misplacing, and then improves display quality.
In sum, the dot structure of display panels of the present invention uses minus vertical orientation liquid crystal molecule, can effectively increase contrast and visual angle and suppress the colour cast problem.In addition, the dot structure of display panels of the present invention has the electrode separation of increasing or decreasing, can effectively increase the arrangement consistance of liquid crystal molecule, and then a little the generation of avoiding misplacing.
The above is only preferred embodiment of the present invention, and all equalizations of doing according to claims of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (19)
1. the dot structure of a display panels, is characterized in that, comprising:
One first substrate;
One first electrode is arranged on this first substrate;
One dielectric layer is arranged on this first substrate and covers this first electrode;
One second electrode is arranged on this dielectric layer, and wherein this second electrode comprises:
At least one trunk electrode;
Many branch electrodes are connected with this at least one trunk electrode; And
Many slits are formed at respectively between these adjacent branch electrodes;
One second substrate is faced setting with this first substrate; And
One liquid crystal layer is arranged between this second electrode and this second substrate, and wherein this liquid crystal layer comprises a plurality of minus vertical orientation liquid crystal molecules.
2. the dot structure of display panels according to claim 1, is characterized in that, this first electrode is the electrode with different voltage from this second electrode.
3. the dot structure of display panels according to claim 1, it is characterized in that, these branch electrodes of this second electrode comprise one first branch electrodes and one second branch electrodes, this first branch electrodes has one first width, this second branch electrodes has one second width, and this first width is not equal to this second width.
4. the dot structure of display panels according to claim 1, it is characterized in that, these slits of this second electrode comprise one first slit and one second slit, this first slit has one first gap, this second slit has one second gap, and this first gap is not equal to this second gap.
5. the dot structure of display panels according to claim 1, is characterized in that, respectively this slit has a gap, and respectively this gap by increasing progressively near an interior side direction of this trunk electrode outside away from this trunk electrode.
6. the dot structure of display panels according to claim 5, it is characterized in that, these branch electrodes of this second electrode comprise many first branch electrodes and many second branch electrodes, these first branch electrodes and these the second branch electrodes alternative arrangements, this first branch electrodes has one first width, this second branch electrodes has one second width, this first width is a fixed width, and this second width is successively decreased away from an outside of this trunk electrode by the interior side direction near this trunk electrode.
7. the dot structure of display panels according to claim 6, is characterized in that, respectively this second width of this second branch electrodes by near this trunk electrode should in side direction away from this outside uncontinuity of this trunk electrode successively decrease.
8. the dot structure of display panels according to claim 6, is characterized in that, respectively this second width of this second branch electrodes by near this trunk electrode should in side direction away from this outside continuity of this trunk electrode successively decrease.
9. the dot structure of display panels according to claim 5, is characterized in that, respectively this branch electrodes of this second electrode has a width, and this width is successively decreased away from an outside of this trunk electrode by the interior side direction near this trunk electrode.
10. the dot structure of display panels according to claim 9, is characterized in that, respectively this width of this branch electrodes by near this trunk electrode should in side direction away from this outside uncontinuity of this trunk electrode successively decrease.
11. the dot structure of display panels according to claim 9 is characterized in that, respectively this width of this branch electrodes by near this trunk electrode should in side direction away from this outside continuity of this trunk electrode successively decrease.
12. the dot structure of display panels according to claim 1 is characterized in that, respectively this slit has a gap, and respectively successively decreased away from an outside of this trunk electrode by the interior side direction near this trunk electrode in this gap.
13. the dot structure of display panels according to claim 12, it is characterized in that, these branch electrodes of this second electrode comprise many first branch electrodes and many second branch electrodes, these first branch electrodes and these the second branch electrodes alternative arrangements, this first branch electrodes has one first width, this second branch electrodes has one second width, this first width is a fixed width, and this second width is by increasing progressively near an interior side direction of this trunk electrode outside away from this trunk electrode.
14. the dot structure of display panels according to claim 13 is characterized in that, respectively this second width of this second branch electrodes by near this trunk electrode should in side direction away from this outside uncontinuity of this trunk electrode increase progressively.
15. the dot structure of display panels according to claim 13 is characterized in that, respectively this second width of this second branch electrodes by near this trunk electrode should in side direction away from this outside continuity of this trunk electrode increase progressively.
16. the dot structure of display panels according to claim 12 is characterized in that, respectively this branch electrodes of this second electrode has a width, and this width is by increasing progressively near an interior side direction of this trunk electrode outside away from this trunk electrode.
17. the dot structure of display panels according to claim 16 is characterized in that, respectively this width of this branch electrodes by near this trunk electrode should in side direction away from this outside uncontinuity of this trunk electrode increase progressively.
18. the dot structure of display panels according to claim 16 is characterized in that, respectively this width of this branch electrodes by near this trunk electrode should in side direction away from this outside continuity of this trunk electrode increase progressively.
19. the dot structure of display panels according to claim 1, it is characterized in that, these branch electrodes of this second electrode comprise many first branch electrodes and many second branch electrodes, these first branch electrodes and these the second branch electrodes alternative arrangements, this first branch electrodes has one first width, this second branch electrodes has one second width, this first width is a fixed width, this second width is a fixed width, these slits comprise a plurality of the first slits and a plurality of the second slit, these first slits and these the second slit alternative arrangements, respectively this first slit has one first gap, and respectively this first gap is by increasing progressively near an interior side direction of this trunk electrode outside away from this trunk electrode, respectively this second slit has one second gap, and respectively this second gap is by should interior side direction successively decrease away from this outside of this trunk electrode near this trunk electrode.
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| TW101144954 | 2012-11-30 | ||
| TW101144954A TWI494672B (en) | 2012-11-30 | 2012-11-30 | Pixel structure of liquid crystal display panel |
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| CN103135294A true CN103135294A (en) | 2013-06-05 |
| CN103135294B CN103135294B (en) | 2016-03-09 |
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| CN103792738A (en) * | 2013-09-12 | 2014-05-14 | 友达光电股份有限公司 | Pixel structure |
| CN104503169A (en) * | 2014-11-21 | 2015-04-08 | 深圳市华星光电技术有限公司 | Vertically-aligned liquid crystal display |
| CN104536219A (en) * | 2015-01-22 | 2015-04-22 | 京东方科技集团股份有限公司 | Liquid crystal display panel and display device |
| CN105116646A (en) * | 2015-10-15 | 2015-12-02 | 深圳市华星光电技术有限公司 | Electrode structure and liquid crystal display panel |
| CN105204241A (en) * | 2014-06-20 | 2015-12-30 | 三星显示有限公司 | Liquid crystal display |
| CN106932975A (en) * | 2017-02-20 | 2017-07-07 | 友达光电股份有限公司 | Pixel structure |
| CN107577091A (en) * | 2016-07-04 | 2018-01-12 | 三星显示有限公司 | Liquid crystal display device |
| CN109116638A (en) * | 2018-06-25 | 2019-01-01 | 友达光电股份有限公司 | pixel structure |
| CN110888273A (en) * | 2019-11-21 | 2020-03-17 | Tcl华星光电技术有限公司 | Pixel electrode structure and liquid crystal display panel |
| CN113641045A (en) * | 2021-07-22 | 2021-11-12 | Tcl华星光电技术有限公司 | Display panel |
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| TWI566020B (en) * | 2014-07-08 | 2017-01-11 | 群創光電股份有限公司 | Display panel and display device |
| TWI674463B (en) * | 2018-07-19 | 2019-10-11 | 友達光電股份有限公司 | Display device |
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Also Published As
| Publication number | Publication date |
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| TW201421130A (en) | 2014-06-01 |
| CN103135294B (en) | 2016-03-09 |
| TWI494672B (en) | 2015-08-01 |
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Effective date of registration: 20161220 Address after: Jiangsu Longteng economic and Technological Development Zone Kunshan Road No. 6 Patentee after: AU Optronics (Kunshan) Co., Ltd. Address before: Taiwan, China Hsinchu science and Technology Industrial Park, Hsinchu Road, No. two, No. 1 Patentee before: Youda Photoelectric Co., Ltd. |