CN101950103B - Liquid crystal display unit - Google Patents
Liquid crystal display unit Download PDFInfo
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- CN101950103B CN101950103B CN2010102821315A CN201010282131A CN101950103B CN 101950103 B CN101950103 B CN 101950103B CN 2010102821315 A CN2010102821315 A CN 2010102821315A CN 201010282131 A CN201010282131 A CN 201010282131A CN 101950103 B CN101950103 B CN 101950103B
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Abstract
The invention relates to a liquid crystal display unit which comprises a pixel unit and a quasi-isotropic liquid crystal layer with Kerr effect, wherein the pixel unit comprises a plurality of sub-pixel units, each sub-pixel unit is at least provided with a first penetration area and a second penetration area, and each sub-pixel unit comprises a switch assembly, a pixel electrode and a common electrode, wherein the pixel electrode is provided with a plurality of first strip-shaped patterns; the common electrode is provided with a plurality of second strip-shaped patterns, and the first strip-shaped patterns and the second strip-shaped patterns are arranged alternately; in the first penetration area, the width of each first strip-shaped pattern is L1, and the gap between each first strip-shaped pattern and the adjacent second strip-shaped pattern is S1; in the second penetration area, the width of each first strip-shaped pattern is L2, and the gap between each first strip-shaped pattern and the adjacent second strip-shaped pattern is S2; and L1 is not equal to L2 or S1 is not equal to S2 or L1/S1 is not equal to L2/S2.
Description
[technical field]
The invention relates to a kind of liquid crystal display, and particularly have the liquid crystal display of tropisms' (quasi-isotropic) such as standard liquid crystal layer relevant for a kind of employing.
[background technology]
In the development of display, along with the progress of photoelectric technology and semiconductor fabrication, have that high image quality, space utilization efficient are good, the LCD of low consumpting power, advantageous characteristic such as radiationless becomes the main flow in market gradually.The liquid crystal material that more often is used in the LCD at present comprises vertical orientation liquid crystal (vertically aligned LC), twisted nematic liquid crystal (twisted nematic LC), cholesterol liquid crystal etc.Because different liquid crystal has different optics and electrical specification,, need to adopt the active assembly array base plate of different designs, so that the display quality optimization therefore to different types of liquid crystal molecule.
Figure 1A is the voltage-penetrance curve of vertical orientation liquid crystal.Please with reference to Figure 1A, when the vertical orientation liquid crystal received the different voltages with different driving, its penetrance can change to some extent.With the display panels that can show 256 kinds of color ranges is example, and penetrance is the driving voltage V that 100% magnitude of voltage that corresponded to is defined as GTG L255
L255, and penetrance is the driving voltage V that 0% magnitude of voltage that corresponded to can be defined as GTG L0
L0Can know by Figure 1A, as the driving voltage V that puts on liquid crystal
L255When slightly skew being arranged, the penetrance of liquid crystal is not easy to occur very significantly to change, so display panels is when showing GTG L255, and display quality is very stable.
Figure 1B is the voltage-penetrance curve with liquid crystal of Kerr effect.Please with reference to Figure 1A and Figure 1B, the liquid crystal (like blue phase liquid crystal) with Kerr effect is different with the optics and the electrical specification of vertical orientation liquid crystal, and the penetrance with liquid crystal of Kerr effect can present the phenomenon of height concussion along with the increase of voltage.With the display panels that can show 256 kinds of color ranges is example, and penetrance is the driving voltage V that 100% magnitude of voltage that corresponded to is defined as GTG L255
L255, and penetrance is the driving voltage V that 0% magnitude of voltage that corresponded to can be defined as GTG L0
L0Can know by Figure 1B, as the driving voltage V that puts on liquid crystal
L255When slightly skew being arranged, very significantly changing just can appear in the penetrance of liquid crystal, so display panels is when showing GTG L255, and display quality is unstable.
Hold above-mentionedly, how to improve aforementioned display quality problem of unstable, one of emphasis subject under discussion of real field for this reason research and development.
[summary of the invention]
The present invention provides a kind of liquid crystal display, and its use has accurate tropism (quasi-isotropic) liquid crystal layer that waits.
The present invention provides a kind of liquid crystal display, and it comprises tropism's liquid crystal layers such as picture element unit and standard.The picture element unit comprises a plurality of sub-picture elements unit, and each sub-picture element unit has first penetrating region and second penetrating region at least, and each sub-picture element unit comprises switch module, pixel electrode and common electrode.Pixel electrode and switch module electrically connect, and pixel electrode has a plurality of first strip patterns.Common electrode and pixel electrode are electrically insulated, and common electrode has a plurality of second strip patterns, and first strip pattern and second strip pattern are alternately arranged.In first penetrating region, the width of each first strip pattern is L1, and the gap between each first strip pattern and adjacent second strip pattern is S1.In second penetrating region, the width of each first strip pattern is L2, and the gap between each first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2.The accurate tropism's liquid crystal layer that waits is disposed at top, sub-picture element unit; And accurate wait tropism's liquid crystal layer when not applying voltage be optics etc. to (optically isotropic), and tropism's liquid crystal layer such as this standard is optical anisotropy (optically anisotropic) when being applied in voltage.
In one embodiment of this invention; The accurate complex index of refraction (Δ n) that waits tropism's liquid crystal layer for example be proportional to pixel electrode and common electrode between electric field (E), the perhaps accurate complex index of refraction (Δ n) that waits tropism's liquid crystal layer be proportional to pixel electrode and common electrode between square (E of electric field
2).
In one embodiment of this invention, aforesaid switch module comprises a transistor, and first strip pattern is electrically connected to each other.
In one embodiment of this invention; Aforesaid switch module comprises two-transistor; The sub-pixel electrode that first strip pattern formation two is electrically insulated each other; And each transistor electrically connects with a sub-pixel electrode wherein respectively, and part first strip pattern that belongs to same sub-pixel electrode is electrically connected to each other.
In one embodiment of this invention, aforesaid one of them sub-pixel electrode is positioned at first penetrating region, and another sub-pixel electrode is positioned at second penetrating region.
In one embodiment of this invention, the accurate voltage that waits the voltage-penetrance curve VT1 of tropism's liquid crystal layer and be positioned at tropism's liquid crystal layers such as standard of the second penetrating region-penetrance curve VT2 difference in aforesaid first penetrating region.
In one embodiment of this invention; The area of aforesaid each first penetrating region is A1; The area of each second penetrating region is A2, and the equivalent voltage-penetrance curve VT=of tropism's liquid crystal layer such as standard in each sub-picture element unit [(VT1 * A1)+(VT2 * A2)]/(A1+A2).
In one embodiment of this invention, aforesaid L1=L2, and S1 ≠ S2.
In one embodiment of this invention, the area of aforesaid first penetrating region equals the area of second penetrating region in fact.
In one embodiment of this invention, the area of aforesaid first penetrating region is not equal to the area of second penetrating region.
In one embodiment of this invention, tropism such as aforesaid standard liquid crystal layer is a blue phase liquid crystal.
In one embodiment of this invention; Aforesaid each sub-picture element unit can further have one the 3rd penetrating region; In the 3rd penetrating region; The width of each first strip pattern is L3, and the gap between each first strip pattern and adjacent second strip pattern is S3, and L1/S1 ≠ L2/S2 ≠ L3/S3.For example, L1=L2=L3, and S1 ≠ S2 ≠ S3.
In one embodiment of this invention, aforesaid switch module comprises a transistor, and first strip pattern is electrically connected to each other.
In one embodiment of this invention; Aforesaid switch module comprises three transistors; First strip pattern constitutes three sub-pixel electrodes that are electrically insulated each other; And each transistor electrically connects with a sub-pixel electrode wherein respectively, and part first strip pattern that belongs to same sub-pixel electrode is electrically connected to each other.
In one embodiment of this invention, the aforesaid voltage-penetrance curve VT1 that is positioned at the accurate liquid crystal layer such as the tropism of grade of first penetrating region, be positioned at voltage-penetrance curve VT2 and the voltage-penetrance curve VT3 difference that is positioned at tropism's liquid crystal layers such as standard of the 3rd penetrating region of tropism's liquid crystal layers such as standard of second penetrating region.
In one embodiment of this invention; The area of aforesaid each first penetrating region is A1; The area of each second penetrating region is A2; The area of each the 3rd penetrating region is A3, and the equivalent voltage-penetrance curve VT=of tropism's liquid crystal layer such as standard in each sub-picture element unit [(VT1 * A1)+(VT2 * A2)+(VT3 * A3)]/(A1+A2+A3).
In one embodiment of this invention; It is 1e-8 that aforesaid standard waits the Ke Er coefficient of tropism's liquid crystal layer, and accurate liquid crystal layer such as the tropism of grade is suitable for driving through a driving voltage V, and driving voltage V position is in a driving voltage interval; And the driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax; When accurate liquid crystal layer such as the tropism of grade was driven by high driving voltage Vmax, it was Tmax that accurate in each sub-picture element unit waited the penetrance of tropism's liquid crystal layer, and when the penetrance of tropism's liquid crystal layers such as the standard in each sub-picture element unit be Tmax 99% the time; The difference of driving voltage V and maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞2.9%.
In one embodiment of this invention; It is 1e-8 that aforesaid standard waits the Ke Er coefficient of tropism's liquid crystal layer, and accurate liquid crystal layer such as the tropism of grade is suitable for driving through a driving voltage V, and driving voltage V position is in a driving voltage interval; And the driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax; When accurate liquid crystal layer such as the tropism of grade was driven by high driving voltage Vmax, it was Tmax that accurate in each sub-picture element unit waited the penetrance of tropism's liquid crystal layer, and when the penetrance of tropism's liquid crystal layers such as the standard in each sub-picture element unit be Tmax 97% the time; The difference of driving voltage V and maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞5.4%.
In one embodiment of this invention; It is 1e-9 that aforesaid standard waits the Ke Er coefficient of tropism's liquid crystal layer, and accurate liquid crystal layer such as the tropism of grade is suitable for driving through a driving voltage V, and driving voltage V position is in a driving voltage interval; And the driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax; When accurate liquid crystal layer such as the tropism of grade was driven by high driving voltage Vmax, it was Tmax that accurate in each sub-picture element unit waited the penetrance of tropism's liquid crystal layer, and when the penetrance of tropism's liquid crystal layers such as the standard in each sub-picture element unit be Tmax 99% the time; The difference of driving voltage V and maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞3.8%.
In one embodiment of this invention; It is 1e-9 that aforesaid standard waits the Ke Er coefficient of tropism's liquid crystal layer, and accurate liquid crystal layer such as the tropism of grade is suitable for driving through a driving voltage V, and driving voltage V position is in a driving voltage interval; And the driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax; When accurate liquid crystal layer such as the tropism of grade was driven by high driving voltage Vmax, it was Tmax that accurate in each sub-picture element unit waited the penetrance of tropism's liquid crystal layer, and when the penetrance of tropism's liquid crystal layers such as the standard in each sub-picture element unit be Tmax 97% the time; The difference of driving voltage V and maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞6.4%.
Width/gap that the present invention passes through to change pixel electrode can make the voltage-breakthrough curve of the liquid crystal in the different penetrating regions difference occur than (L/S), and then changes the equivalent voltage-breakthrough curve of liquid crystal display.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and cooperates appended graphic elaborating as follows.
[description of drawings]
Figure 1A is the voltage-penetrance curve of vertical orientation liquid crystal.
Figure 1B is the voltage-penetrance curve with liquid crystal of Kerr effect.
Fig. 2 is the synoptic diagram of the liquid crystal display of first embodiment of the invention.
Fig. 3 A is the voltage-penetrance curve of the liquid crystal in first penetrating region and second penetrating region among Fig. 2.
Fig. 3 B is the accurate equivalent voltage-penetrance curve that waits tropism's liquid crystal layer in the sub-picture element unit among Fig. 2.
Fig. 3 C is the enlarged drawing at Vmax place at voltage for equivalent voltage-penetrance curve among Fig. 3 B.
Fig. 4 is the synoptic diagram of the liquid crystal display of second embodiment of the invention.
Fig. 5 and Fig. 6 are the experimental data of other embodiment of the present invention.
[primary clustering symbol description]
100: liquid crystal display
110,110 ': the picture element unit
112,112 ': sub-picture element unit
120: the accurate tropism's liquid crystal layer that waits
SW: switch module
P: pixel electrode
P1: first strip pattern
C: common electrode
P2: second strip pattern
T1: first penetrating region
T2: second penetrating region
T3: the 3rd penetrating region
L1, L2, L3: width
S1, S2, S3: gap
A1, A2, A3: area
VT1, VT2, VT3: voltage-penetrance curve
VT: equivalent voltage-penetrance curve
Vmin: minimum drive voltage
Vmax: high driving voltage
V, V (97%), V (99%): driving voltage
Tmax, T (97%), T (99%): penetrance
Δ V (97%), Δ V (99%): voltage difference
[embodiment]
[first embodiment]
Fig. 2 is the synoptic diagram of the liquid crystal display of first embodiment of the invention.Please with reference to Fig. 2, the liquid crystal display 100 of present embodiment comprises tropism's liquid crystal layers 120 such as picture element unit 110 and standard.Picture element unit 110 comprises a plurality of sub-picture elements unit 112, and each sub-picture element unit 112 has the first penetrating region T1 and the second penetrating region T2 at least, and each sub-picture element unit 112 comprises switch module SW, pixel electrode P and common electrode C.Pixel electrode P and switch module SW electrically connect, and pixel electrode P has a plurality of first strip pattern P 1.Common electrode C and pixel electrode P are electrically insulated, and common electrode C has a plurality of second strip pattern P 2, and the first strip pattern P 1 and the second strip pattern P 2 are alternately arranged.In the first penetrating region T1, the width of each first strip pattern P 1 is L1, and the gap between each the first strip pattern P 1 and the adjacent second strip pattern P 2 is S1.In the second penetrating region T2, the width of each first strip pattern P 1 is L2, and the gap between each the first strip pattern P 1 and the adjacent second strip pattern P 2 is S2, and L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2.The accurate tropism's liquid crystal layer 120 that waits is disposed at 112 tops, sub-picture element unit; And accurate wait tropism's liquid crystal layer 120 when not applying voltage be optics etc. to (optically isotropic), and tropism's liquid crystal layer 120 such as this standard is optical anisotropy (optically anisotropic) when being applied in voltage.
In the present embodiment; In the first penetrating region T1; The width of each second strip pattern P 2 can equal the width (being that the two is all L1) of the first strip pattern P 1 in fact, and certainly, the width of each second strip pattern P 2 can also be not equal to the width of the first strip pattern P 1.Likewise; In the second penetrating region T2; The width of each second strip pattern P 2 can equal the width (being that the two is all L1) of the first strip pattern P 1 in fact, and certainly, the width of each second strip pattern P 2 can also be not equal to the width of the first strip pattern P 1.For example, in the first penetrating region T1, if the width of the first strip pattern P 1 is about 3 microns, then the width of the second strip pattern P 2 can be in fact between 2 microns to 5 microns; In the second penetrating region T2, if the width of the first strip pattern P 1 is about 3 microns, then the width of the second strip pattern P 2 can be in fact between 2 microns to 5 microns.Certainly; The design of the width of the first strip pattern P 1 and the second strip pattern P 2 is not exceeded with aforesaid numerical value, and the width that present embodiment can see through the first strip pattern P 1 is adjusted the first penetrating region T1 and interior voltage-penetrance curve VT1, the VT2 of the second penetrating region T2 with the relation between the width of the second strip pattern P 2.
For example; The accurate complex index of refraction (Δ n) of tropism's liquid crystal layer 120 that waits is proportional to the electric field (E) between pixel electrode P and the common electrode C in fact, and the perhaps accurate complex index of refraction (Δ n) of tropism's liquid crystal layer 120 that waits is proportional to square (E of the electric field between pixel electrode P and the common electrode C in fact
2).In the present embodiment, tropism such as standard liquid crystal layer 120 for example is blue phase liquid crystal or other liquid crystal material.
In the present embodiment, the switch module SW in each sub-picture element unit 112 for example is a transistor, and this crystal piping and the first strip pattern P 1 electrically connect.In other words, first penetrating region T1 in the sub-picture element unit 112 and the first strip pattern P 1 among the second penetrating region T2 all electrically connect with same transistor, and have identical voltage.Yet the present invention does not limit the kenel of employed transistorized quantity and pixel electrode P.
In other feasible embodiment; The first strip pattern P 1 that part is positioned at the first penetrating region T1 constitutes a sub-pixel electrode; And all the other first strip pattern P 1 that are positioned at the second penetrating region T2 constitute another sub-pixel electrode, and the two sub-pixel electrodes that lay respectively in the first penetrating region T1 and the second penetrating region T2 are electrically insulated each other.For indivedual two sub-pixel electrodes that are positioned at the first penetrating region T1 and the second penetrating region T2 that drive; Switch module SW in each sub-picture element unit 112 comprises two-transistor; Wherein a transistor AND gate is positioned at the sub-pixel electrode electric connection of the first penetrating region T1, and another transistor then electrically connects with the sub-pixel electrode that is positioned at the second penetrating region T2.Hold above-mentionedly, the present invention does not limit the quantity of each sub-picture element unit 112 neutron pixel electrode, and this field has common knowledge the knowledgeable can be according to the actual demand of product, and the layout (layout) of antithetical phrase picture element unit 112 is done suitable change.
In the present embodiment; In the first penetrating region T1 and the second penetrating region T2; The first strip pattern P 1 has approximate or identical width with the second strip pattern P 2; Promptly
in addition; In the first penetrating region T1 and the second penetrating region T2, the gap between the first strip pattern P 1 and the adjacent second strip pattern P 2 is inequality, i.e. S1 ≠ S2.For example, L1, L2 are about 3 microns, and S1 is about 3 microns, and S2 is about 5 microns.In other words, the L1/S1 in the present embodiment is about 3 microns/3 microns, and L2/S2 is about 3 microns/5 microns.Yet; The present invention does not limit the first penetrating region T1 must have identical width with the first strip pattern P 1 and the second strip pattern P 2 among the second penetrating region T2; Any L1, L2, S1, S2 that satisfies the inequality of L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2 all should belong to the category that the present invention desires to contain.For example, when L1/S1 is about 3 microns/3 microns, and L2/S2 is when being about 6 microns/6 microns, though L1/S1=L2/S2 but still satisfies L1 ≠ L2 or S1 ≠ S2, so it still is category that the present invention desired to contain.In brief, as long as the collocation of the collocation of L1 and S1 and L2 and S2 difference to some extent all should belong to the category that the present invention desires to contain.
Fig. 3 A is the voltage-penetrance curve of the liquid crystal in first penetrating region and second penetrating region among Fig. 2, and Fig. 3 B be the equivalent voltage-penetrance curve of the liquid crystal layer such as tropism such as certainly grade the sub-picture element unit among Fig. 2 in.Please with reference to Fig. 2 and Fig. 3 A; When L1/S1 is about 3 microns/3 microns; And L2/S2 is when being about 3 microns/5 microns, and voltage-penetrance curve VT2 that accurate in the voltage-penetrance curve VT1 of the accurate liquid crystal layer such as the tropism of grade 120 in the first penetrating region T1 and the second penetrating region T2 waited tropism's liquid crystal layer 120 is difference obviously.Because first penetrating region T1 in each sub-picture element unit 112 and the area of the second penetrating region T2 are very little; Human eye vision is difficult to clearly pick out the first penetrating region T1 and the second penetrating region T2; Therefore for the user; The GTG that each sub-picture element unit 112 is shown is relevant with equivalent voltage-penetrance curve VT (being illustrated in Fig. 3 B), equivalent voltage-penetrance curve VT that accurate in each sub-picture element unit 112 waited tropism's liquid crystal layer then with voltage-penetrance curve VT1, voltage-penetrance curve VT2, each sub-picture element unit 112 in the area A 2 of the interior second penetrating region T2 of the area A 1, each sub-picture element unit 112 of the first penetrating region T1 relevant.In detail, the accurate equivalent voltage-penetrance curve VT of tropism's liquid crystal layer that waits in each sub-picture element unit 112 can calculate and get via following relationship formula (1).
VT＝[(VT1×A1)+(VT2×A2)]/(A1+A2)…(1)
During approximate or equal area (
), the equivalent voltage-penetrance curve VT of the accurate liquid crystal layer such as tropism such as grade in the sub-picture element unit 112 is shown in Fig. 3 B when having of the first penetrating region T1 in each sub-picture element unit 112 and the second penetrating region T2.Equivalent voltage from Fig. 3 B-penetrance curve VT can know; When the accurate tropism's liquid crystal layer that waits receives voltage Vmax driving; But when the driving voltage Vmax that puts on tropism such as standard liquid crystal layer has skew slightly; Very significantly changing can not appear in the accurate penetrance of tropism's liquid crystal layer that waits, so the liquid crystal display of present embodiment has very stable display quality.
It should be noted that the area A 1 of the first penetrating region T1 that the present invention does not limit must equal the area A 2 of the second penetrating region T2.This field has common knowledge the knowledgeable can be according to the actual demand of product, and the area of the first penetrating region T1 and the second penetrating region T2 is carried out suitable adjustment, to obtain required equivalent voltage-penetrance curve VT.
Fig. 3 C is the enlarged drawing at Vmax place at voltage for equivalent voltage-penetrance curve among Fig. 3 B.Please with reference to Fig. 3 B and Fig. 3 C; With the Ke Er coefficient is that the accurate liquid crystal layer such as the tropism of grade of 1e-8 is an example; Accurate liquid crystal layer such as the tropism of grade is suitable for driving through a driving voltage V, and driving voltage V position is in a driving voltage interval, and the driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax; When standard waits tropism's liquid crystal layer by a driven; When the standard in each sub-picture element unit waited the penetrance of tropism's liquid crystal layer to be Tmax, this driving voltage then was defined as Vmax, and when the standard in each sub-picture element unit waits the penetrance of tropism's liquid crystal layer to be about 99% (being T (99%)) of Tmax; Driving voltage V (99%) is about Δ V (99%) with the difference of maximum drive voltage Vmax, and (Δ V (99%)/Vmax) is approximately greater than 2.9%.In addition, when the standard in each sub-picture element unit waited the penetrance of tropism's liquid crystal layer to be about 97% (being T (97%)) of Tmax, driving voltage V (97%) was about Δ V (97%) with the difference of maximum drive voltage Vmax, and (Δ V (97%)/Vmax) is approximately greater than 5.4%.
With the Ke Er coefficient is that the accurate liquid crystal layer such as the tropism of grade of 1e-9 is an example; The accurate tropism's liquid crystal layer that waits is suitable for driving through a driving voltage V; Driving voltage V position is in a driving voltage interval; And the driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when accurate when waiting tropism's liquid crystal layer to be driven by a driving voltage, when the penetrance that certainly waits tropism's liquid crystal layer in each sub-picture element unit is Tmax; This driving voltage then is defined as Vmax; And when the standard in each sub-picture element unit waited the penetrance of tropism's liquid crystal layer to be about 99% (being T (99%)) of Tmax, driving voltage V (99%) was about Δ V (99%) with the difference of maximum drive voltage Vmax, and (Δ V (99%)/Vmax) is approximately greater than 3.8%.In addition; When accurate liquid crystal layer such as the tropism of grade is driven by high driving voltage Vmax; It is Tmax that standard in each sub-picture element unit waits the penetrance of tropism's liquid crystal layer; And when the standard in each sub-picture element unit waited the penetrance of tropism's liquid crystal layer to be about 97% (being T (97%)) of Tmax, driving voltage V (97%) was about Δ V (97%) with the difference of maximum drive voltage Vmax, and (Δ V (97%)/Vmax) is approximately greater than 6.4%.
[second embodiment]
Fig. 4 is the synoptic diagram of the liquid crystal display of second embodiment of the invention.Please with reference to Fig. 2 and Fig. 4; The picture element unit 110 ' of present embodiment and the picture element unit 110 of first embodiment are similar; Only the two main difference is: each of present embodiment picture element unit 112 ' comprises the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3; In the 3rd penetrating region T3; The width of each first strip pattern P 1 is L3, and the gap between each the first strip pattern P 1 and the adjacent second strip pattern P 2 is S3, and L1 ≠ L2 ≠ L3 or S1 ≠ S2 ≠ S3 or L1/S1 ≠ L2/S2 ≠ L3/S3.In the 3rd penetrating region T3, the width of each second strip pattern P 2 can equal the width (being that the two is all L3) of the first strip pattern P 1 in fact, and certainly, the width of each second strip pattern P 2 can also be not equal to the width of the first strip pattern P 1.
In the present embodiment, the switch module SW in each sub-picture element unit 112 ' for example is a transistor, and this crystal piping and the first strip pattern P 1 electrically connect.In other words, the first strip pattern P 1 among the first penetrating region T1 in the sub-picture element unit 112, the second penetrating region T2 and the 3rd penetrating region T3 all electrically connects with same transistor, and has identical voltage.Yet the present invention does not limit the kenel of employed transistorized quantity and pixel electrode P.
In other feasible embodiment; The first strip pattern P 1 that part is positioned at the first penetrating region T1 constitutes a sub-pixel electrode; The first strip pattern P 1 that part is positioned at the second penetrating region T2 constitutes second sub-pixel electrode; And all the other first strip pattern P 1 that are positioned at the 3rd penetrating region T3 constitute the 3rd sub-pixel electrode, and three sub-pixel electrodes that lay respectively in the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3 are electrically insulated each other.For indivedual three sub-pixel electrodes that are positioned at the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3 that drive; Switch module SW in each sub-picture element unit 112 ' comprises three transistors; Wherein a transistor AND gate is positioned at the sub-pixel electrode electric connection of the first penetrating region T1; Second transistor AND gate is positioned at the sub-pixel electrode electric connection of the second penetrating region T2, and the 3rd transistor then electrically connects with the sub-pixel electrode that is positioned at the 3rd penetrating region T3.Hold above-mentionedly, the present invention does not limit the quantity of each sub-picture element unit 112 ' neutron pixel electrode, and this field has common knowledge the knowledgeable can be according to the actual demand of product, and the layout (layout) of antithetical phrase picture element unit 112 ' is done suitable change.
In the present embodiment; In the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3; The first strip pattern P 1 has approximate in fact or identical width with the second strip pattern P 2; Promptly
in addition; In the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3, the gap between the first strip pattern P 1 and the adjacent second strip pattern P 2 is inequality, i.e. L1/S1 ≠ L2/S2 ≠ L3/S3.For example, L1, L2, L3 are about 3 microns, and S1 is about 3 microns, and S2=is about 4 microns, and S3 is about 5 microns.In other words, the L1/S1 in the present embodiment is about 3 microns/3 microns, and L2/S2 is about 3 microns/4 microns, and L3/S3 is about 3 microns/5 microns.Yet; The first strip pattern P 1 that the present invention does not limit among the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3 must have in fact or identical width with the second strip pattern P 2; Any L1, L2, S1, S2, L3, S3 that satisfies the inequality of L1/S1 ≠ L2/S2 ≠ L3/S3 all should belong to the category that the present invention desires to contain.
When L1/S1 ≠ L2/S2 ≠ L3/S3, accurate in the first penetrating region T1 waits voltage-penetrance curve VT3 of voltage-penetrance curve VT2 and the tropism's liquid crystal layers 120 such as standard in the 3rd penetrating region T3 of voltage-penetrance curve VT1, the tropism's liquid crystal layers 120 such as standard in the second penetrating region T2 of tropism's liquid crystal layer 120 can be obviously different.Because the area of the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3 in each sub-picture element unit 112 ' is very little; Human eye vision is difficult to clearly pick out the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3; Therefore for the user; VT is relevant with equivalent voltage-penetrance curve for the GTG that each sub-picture element unit 112 ' is shown, equivalent voltage-penetrance curve VT that accurate in each sub-picture element unit 112 ' waited tropism's liquid crystal layer then with voltage-penetrance curve VT1, voltage-penetrance curve VT2, voltage-penetrance curve VT3, each sub-picture element unit 112 ' in the area A 3 of interior the 3rd penetrating region T3 of the area A 2, each sub-picture element unit 112 ' of the interior second penetrating region T2 of the area A 1, each sub-picture element unit 112 ' of the first penetrating region T1 relevant.Detailed speech, the accurate equivalent voltage-penetrance curve VT of tropism's liquid crystal layer that waits in each sub-picture element unit 112 ' can calculate and get via following relationship formula (2).
VT＝[(VT1×A1)+(VT2×A2)+(VT3×A3)]/(A1+A2+A3)…(2)
It should be noted that the area ratio of the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3 that the present invention does not limit.This field has common knowledge the knowledgeable can be according to the actual demand of product, and the area ratio of the first penetrating region T1, the second penetrating region T2 and the 3rd penetrating region T3 is carried out suitable adjustment, to obtain required equivalent voltage-penetrance curve VT.
Width/gap that the present invention passes through to change pixel electrode can make the voltage-breakthrough curve of the liquid crystal in the different penetrating regions difference occur than (L/S), and then changes the equivalent voltage-breakthrough curve of liquid crystal display.
[experimental example]
Fig. 5 and Fig. 6 are the experimental data of other embodiment of the present invention.Please with reference to Fig. 5; With the Ke Er coefficient is that the accurate liquid crystal layer such as the tropism of grade of 1e-8 is an example, and when the width/gap ratio of pixel electrode was about 3 microns/3 microns (being LS33), maximum drive voltage Vmax was about 23 volts; Δ V (99%)/Vmax is 1.70%, and Δ V (97%)/Vmax is about 4.80%; When the width/gap ratio of pixel electrode was about 3 microns/4 microns (being LS34), maximum drive voltage Vmax was about 28 volts, and Δ V (99%)/Vmax is about 2.10%, and Δ V (97%)/Vmax is about 4.60%; When the width/gap ratio of pixel electrode was about 3 microns/5 microns (being LS35), maximum drive voltage Vmax was about 31 volts, and Δ V (99%)/Vmax is about 2.30%, and Δ V (97%)/Vmax is about 4.80%; When the width/gap ratio of pixel electrode was about 3 microns/6 microns (being LS36), maximum drive voltage Vmax was about 35 volts, and Δ V (99%)/Vmax is about 2.90%, and Δ V (97%)/Vmax is about 5.40%.Clearly; When width/gap when being fixed as 3 microns/3 microns (they being LS33), 3 microns/4 microns (being LS34), 3 microns/5 microns (being LS35) or 3 microns/6 microns (being LS36) approximately; Its V (99%)/Vmax all is less than about 2.90%, and Δ V (97%)/Vmax all is less than about 5.40%.Clearly, when the strip pattern in the pixel electrode only have single-width/gap than the time, the accurate penetrance of tropism's liquid crystal layer that waits is very responsive for the skew of voltage Vmax.
In a plurality of embodiment of the present invention; When the area ratio of each penetrating region with 3 microns/3 microns (being LS33), 3 microns/4 microns (being LS34), 3 microns/5 microns (being LS35) and 3 microns/6 microns (being LS36) is about 1: 1: 4: in the time of 0; Its maximum drive voltage Vmax is about 30 volts; V (99%)/Vmax is about 4.87%, and Δ V (97%)/Vmax is about 8.10%; When the area ratio of each penetrating region with 3 microns/3 microns (being LS33), 3 microns/4 microns (being LS34), 3 microns/5 microns (being LS35) and 3 microns/6 microns (being LS36) is about 1: 0: 2.3: in the time of 0.3; Its maximum drive voltage Vmax is about 34 volts; V (99%)/Vmax is about 15.47%, and Δ V (97%)/Vmax is about 19.71%; When the area ratio of each penetrating region with 3 microns/3 microns (being LS33), 3 microns/4 microns (being LS34), 3 microns/5 microns (being LS35) and 3 microns/6 microns (being LS36) is about 1: 0.4: 2.6: in the time of 0.2; Its maximum drive voltage Vmax is about 30 volts; V (99%)/Vmax is about 6.30%, and Δ V (97%)/Vmax is about 9.80%.Clearly, when the strip pattern in the pixel electrode have multiple width/gap than the time, the accurate penetrance of tropism's liquid crystal layer that waits is more insensitive for the skew of voltage Vmax.
Please with reference to Fig. 6; With the Ke Er coefficient is that the accurate liquid crystal layer such as the tropism of grade of 1e-9 is an example, and when the width/gap ratio of pixel electrode was 3 microns/3 microns (being LS33), maximum drive voltage Vmax was about 74 volts; Δ V (99%)/Vmax is about 3.40%, and Δ V (97%)/Vmax is about 5.90%; When the width/gap ratio of pixel electrode was about 3 microns/4 microns (being LS34), maximum drive voltage Vmax was about 90 volts, and Δ V (99%)/Vmax is about 3.80%, and Δ V (97%)/Vmax is about 6.40%; When the width/gap ratio of pixel electrode was about 3 microns/5 microns (being LS35), maximum drive voltage Vmax was about 99 volts, and Δ V (99%)/Vmax is about 3.20%, and Δ V (97%)/Vmax is about 5.90%; When the width/gap ratio of pixel electrode was about 3 microns/6 microns (being LS36), maximum drive voltage Vmax was about 111 volts, and Δ V (99%)/Vmax is about 3.10%, and Δ V (97%)/Vmax is about 5.70%.Clearly; When width/gap when being fixed as 3 microns/3 microns (they being LS33), 3 microns/4 microns (being LS34), 3 microns/5 microns (being LS35) or 3 microns/6 microns (being LS36) approximately; Its V (99%)/Vmax all is less than about 3.8%, and Δ V (97%)/Vmax all is less than about 6.40%.Clearly, when the strip pattern in the pixel electrode only have single-width/gap than the time, the accurate penetrance of tropism's liquid crystal layer that waits is very responsive for the skew of voltage Vmax.
In a plurality of embodiment of the present invention; When the area ratio of each penetrating region with 3 microns/3 microns (being LS33), 3 microns/4 microns (being LS34), 3 microns/5 microns (being LS35) and 3 microns/6 microns (being LS36) is about 2: 0: 5: in the time of 0.4; Its maximum drive voltage Vmax is about 96 volts; V (99%)/Vmax is about 6.70%, and Δ V (97%)/Vmax is about 10.50%; When the area ratio of each penetrating region with 3 microns/3 microns (being LS33), 3 microns/4 microns (being LS34), 3 microns/5 microns (being LS35) and 3 microns/6 microns (being LS36) is about 2: 3: 3: in the time of 2.2; Its maximum drive voltage Vmax is about 109 volts; V (99%)/Vmax is about 14.00%, and Δ V (97%)/Vmax is about 18.90%; When the area ratio of each penetrating region with 3 microns/3 microns (being LS33), 3 microns/4 microns (being LS34), 3 microns/5 microns (being LS35) and 3 microns/6 microns (being LS36) is about 2: 0.2: 4.2: in the time of 0.8; Its maximum drive voltage Vmax is about 110 volts; V (99%)/Vmax is about 18.40%, and Δ V (97%)/Vmax is about 22.00%.Clearly, when the strip pattern in the pixel electrode have multiple width/gap than the time, the accurate penetrance of tropism's liquid crystal layer that waits is more insensitive for the skew of voltage Vmax.
Though the present invention discloses as above with embodiment; Right its is not in order to limit the present invention; Has common knowledge the knowledgeable in the technical field under any; Do not breaking away from the spirit and scope of the present invention, when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (24)
1. liquid crystal display comprises:
One picture element unit comprises a plurality of sub-picture elements unit, and respectively this sub-picture element unit has one first penetrating region and one second penetrating region at least, and respectively this sub-picture element unit comprises:
One switch module;
One pixel electrode electrically connects with this switch module, and this pixel electrode has a plurality of the
One strip pattern;
One common electrode is electrically insulated with this pixel electrode, and this common electrode has a plurality of second strip patterns; And said first strip pattern and said second strip pattern are alternately arranged; In this first penetrating region, respectively the width of this first strip pattern is L1, and respectively the gap between this first strip pattern and adjacent second strip pattern is S1; In this second penetrating region; Respectively the width of this first strip pattern is L2, and respectively the gap between this first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2; And
Surely wait tropism's liquid crystal layer, be disposed at said sub-picture element unit top, tropism's liquid crystal layers such as this standard be optics etc. when not applying voltage to, and tropism's liquid crystal layer such as this standard is the optical anisotropy when being applied in voltage;
Respectively this sub-picture element unit has more one the 3rd penetrating region; In the 3rd penetrating region; Respectively this first strip pattern is L3 with the width of this second strip pattern respectively, and respectively the gap between this first strip pattern and adjacent second strip pattern is S3, and L1/S1 ≠ L2/S2 ≠ L3/S3;
The Ke Er coefficient of tropism's liquid crystal layers such as this standard is 1e-8; Tropism's liquid crystal layers such as this standard are suitable for driving through a driving voltage V; This driving voltage V position is in a driving voltage interval, and this driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when this accurate liquid crystal layer such as the tropism of grade is driven by this high driving voltage Vmax; Respectively the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit is Tmax; And when the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit respectively be Tmax 99% the time, the difference of this driving voltage V and this maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞4.87%.
2. liquid crystal display comprises:
One picture element unit comprises a plurality of sub-picture elements unit, and respectively this sub-picture element unit has one first penetrating region and one second penetrating region at least, and respectively this sub-picture element unit comprises:
One switch module;
One pixel electrode electrically connects with this switch module, and this pixel electrode has a plurality of first strip patterns;
One common electrode is electrically insulated with this pixel electrode, and this common electrode has a plurality of second strip patterns; And said first strip pattern and said second strip pattern are alternately arranged; In this first penetrating region, respectively the width of this first strip pattern is L1, and respectively the gap between this first strip pattern and adjacent second strip pattern is S1; In this second penetrating region; Respectively the width of this first strip pattern is L2, and respectively the gap between this first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2; And
Surely wait tropism's liquid crystal layer, be disposed at said sub-picture element unit top, tropism's liquid crystal layers such as this standard be optics etc. when not applying voltage to, and tropism's liquid crystal layer such as this standard is the optical anisotropy when being applied in voltage;
Respectively this sub-picture element unit has more one the 3rd penetrating region; In the 3rd penetrating region; Respectively this first strip pattern is L3 with the width of this second strip pattern respectively, and respectively the gap between this first strip pattern and adjacent second strip pattern is S3, and L1/S1 ≠ L2/S2 ≠ L3/S3; The Ke Er coefficient of tropism's liquid crystal layers such as this standard is 1e-8; Tropism's liquid crystal layers such as this standard are suitable for driving through a driving voltage V; This driving voltage V position is in a driving voltage interval, and this driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when this accurate liquid crystal layer such as the tropism of grade is driven by this high driving voltage Vmax; Respectively the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit is Tmax; And when the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit respectively be Tmax 97% the time, the difference of this driving voltage V and this maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞8.10%.
3. liquid crystal display comprises:
One picture element unit comprises a plurality of sub-picture elements unit, and respectively this sub-picture element unit has one first penetrating region and one second penetrating region at least, and respectively this sub-picture element unit comprises:
One switch module;
One pixel electrode electrically connects with this switch module, and this pixel electrode has a plurality of first strip patterns;
One common electrode is electrically insulated with this pixel electrode, and this common electrode has a plurality of second strip patterns; And said first strip pattern and said second strip pattern are alternately arranged; In this first penetrating region, respectively the width of this first strip pattern is L1, and respectively the gap between this first strip pattern and adjacent second strip pattern is S1; In this second penetrating region; Respectively the width of this first strip pattern is L2, and respectively the gap between this first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2; And
Surely wait tropism's liquid crystal layer, be disposed at said sub-picture element unit top, tropism's liquid crystal layers such as this standard be optics etc. when not applying voltage to, and tropism's liquid crystal layer such as this standard is the optical anisotropy when being applied in voltage;
Respectively this sub-picture element unit has more one the 3rd penetrating region; In the 3rd penetrating region; Respectively this first strip pattern is L3 with the width of this second strip pattern respectively, and respectively the gap between this first strip pattern and adjacent second strip pattern is S3, and L1/S1 ≠ L2/S2 ≠ L3/S3;
The Ke Er coefficient of tropism's liquid crystal layers such as this standard is 1e-9; Tropism's liquid crystal layers such as this standard are suitable for driving through a driving voltage V; This driving voltage V position is in a driving voltage interval, and this driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when this accurate liquid crystal layer such as the tropism of grade is driven by this high driving voltage Vmax; Respectively the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit is Tmax; And when the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit respectively be Tmax 99% the time, the difference of this driving voltage V and this maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞6.70%.
4. liquid crystal display comprises:
One picture element unit comprises a plurality of sub-picture elements unit, and respectively this sub-picture element unit has one first penetrating region and one second penetrating region at least, and respectively this sub-picture element unit comprises:
One switch module;
One pixel electrode electrically connects with this switch module, and this pixel electrode has a plurality of first strip patterns;
One common electrode is electrically insulated with this pixel electrode, and this common electrode has a plurality of second strip patterns; And said first strip pattern and said second strip pattern are alternately arranged; In this first penetrating region, respectively the width of this first strip pattern is L1, and respectively the gap between this first strip pattern and adjacent second strip pattern is S1; In this second penetrating region; Respectively the width of this first strip pattern is L2, and respectively the gap between this first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2; And
Surely wait tropism's liquid crystal layer, be disposed at said sub-picture element unit top, tropism's liquid crystal layers such as this standard be optics etc. when not applying voltage to, and tropism's liquid crystal layer such as this standard is the optical anisotropy when being applied in voltage;
Respectively this sub-picture element unit has more one the 3rd penetrating region; In the 3rd penetrating region; Respectively this first strip pattern is L3 with the width of this second strip pattern respectively, and respectively the gap between this first strip pattern and adjacent second strip pattern is S3, and L1/S1 ≠ L2/S2 ≠ L3/S3; The Ke Er coefficient of tropism's liquid crystal layers such as this standard is 1e-9; Tropism's liquid crystal layers such as this standard are suitable for driving through a driving voltage V; This driving voltage position V is in a driving voltage interval, and this driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when this accurate liquid crystal layer such as the tropism of grade is driven by this high driving voltage Vmax; Respectively the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit is Tmax; And when the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit respectively be Tmax 97% the time, the difference of this driving voltage V and this maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞10.50%.
5. according to described liquid crystal display one of in the claim 1 to 4, it is characterized in that this switch module comprises a transistor, and said first strip pattern is electrically connected to each other.
6. according to described liquid crystal display one of in the claim 1 to 4; It is characterized in that; This switch module comprises three transistors; Said first strip pattern constitutes three sub-pixel electrodes that are electrically insulated each other, and respectively this transistor electrically connects with a sub-pixel electrode wherein respectively, and part first strip pattern that belongs to same sub-pixel electrode is electrically connected to each other.
7. according to described liquid crystal display one of in the claim 1 to 4, it is characterized in that L1=L2=L3, and S1 ≠ S2 ≠ S3.
8. according to described liquid crystal display one of in the claim 1 to 4; It is characterized in that, be positioned at tropism's liquid crystal layers such as this standard of this first penetrating region voltage-penetrance curve VT1, be positioned at this second penetrating region tropism's liquid crystal layers such as this standard voltage-penetrance curve VT2 and to be positioned at the voltage of tropism's liquid crystal layers such as this standard of the 3rd penetrating region-penetrance curve VT3 different.
9. liquid crystal display according to claim 8; It is characterized in that; Respectively the area of this first penetrating region is A1; Respectively the area of this second penetrating region is A2, and respectively the area of the 3rd penetrating region is A3, and respectively the accurate equivalent voltage-penetrance curve VT=that waits tropism's liquid crystal layer of this in this sub-picture element unit [(VT1 * A1)+(VT2 * A2)+(VT3 * A3)]/(A1+A2+A3).
10. according to described liquid crystal display one of in the claim 1 to 4; It is characterized in that; Tropisms such as this standard certainly wait the complex index of refraction (Δ n) of tropism's liquid crystal layer be proportional to this pixel electrode and this common electrode between electric field (E), or the complex index of refraction (Δ n) of tropism's liquid crystal layer such as this standard be proportional to this pixel electrode and this common electrode between square (E of electric field
2).
11. a liquid crystal display comprises:
One picture element unit comprises a plurality of sub-picture elements unit, and respectively this sub-picture element unit has one first penetrating region and one second penetrating region at least, and respectively this sub-picture element unit comprises:
One switch module;
One pixel electrode electrically connects with this switch module, and this pixel electrode has a plurality of first strip patterns;
One common electrode is electrically insulated with this pixel electrode, and this common electrode has a plurality of second strip patterns; And said first strip pattern and said second strip pattern are alternately arranged; In this first penetrating region, respectively the width of this first strip pattern is L1, and respectively the gap between this first strip pattern and adjacent second strip pattern is S1; In this second penetrating region; Respectively the width of this first strip pattern is L2, and respectively the gap between this first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2; And
Surely wait tropism's liquid crystal layer, be disposed at said sub-picture element unit top, tropism's liquid crystal layers such as this standard be optics etc. when not applying voltage to, and tropism's liquid crystal layer such as this standard is the optical anisotropy when being applied in voltage;
The Ke Er coefficient of tropism's liquid crystal layers such as this standard is 1e-8; Tropism's liquid crystal layers such as this standard are suitable for driving through a driving voltage V; This driving voltage position is in a driving voltage interval, and this driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when this accurate liquid crystal layer such as the tropism of grade is driven by this high driving voltage Vmax; Respectively the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit is Tmax; And when the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit respectively be Tmax 99% the time, the difference of this driving voltage V and this maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞4.87%.
12. a liquid crystal display comprises:
One picture element unit comprises a plurality of sub-picture elements unit, and respectively this sub-picture element unit has one first penetrating region and one second penetrating region at least, and respectively this sub-picture element unit comprises:
One switch module;
One pixel electrode electrically connects with this switch module, and this pixel electrode has a plurality of first strip patterns;
One common electrode is electrically insulated with this pixel electrode, and this common electrode has a plurality of second strip patterns; And said first strip pattern and said second strip pattern are alternately arranged; In this first penetrating region, respectively the width of this first strip pattern is L1, and respectively the gap between this first strip pattern and adjacent second strip pattern is S1; In this second penetrating region; Respectively the width of this first strip pattern is L2, and respectively the gap between this first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2; And
Surely wait tropism's liquid crystal layer, be disposed at said sub-picture element unit top, tropism's liquid crystal layers such as this standard be optics etc. when not applying voltage to, and tropism's liquid crystal layer such as this standard is the optical anisotropy when being applied in voltage;
The Ke Er coefficient of tropism's liquid crystal layers such as this standard is 1e-8; Tropism's liquid crystal layers such as this standard are suitable for driving through a driving voltage V; This driving voltage position is in a driving voltage interval, and this driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when this accurate liquid crystal layer such as the tropism of grade is driven by this high driving voltage Vmax; Respectively the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit is Tmax; And when the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit respectively be Tmax 97% the time, the difference of this driving voltage V and this maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞8.10%.
13. a liquid crystal display comprises:
One picture element unit comprises a plurality of sub-picture elements unit, and respectively this sub-picture element unit has one first penetrating region and one second penetrating region at least, and respectively this sub-picture element unit comprises:
One switch module;
One pixel electrode electrically connects with this switch module, and this pixel electrode has a plurality of first strip patterns;
One common electrode is electrically insulated with this pixel electrode, and this common electrode has a plurality of second strip patterns; And said first strip pattern and said second strip pattern are alternately arranged; In this first penetrating region, respectively the width of this first strip pattern is L1, and respectively the gap between this first strip pattern and adjacent second strip pattern is S1; In this second penetrating region; Respectively the width of this first strip pattern is L2, and respectively the gap between this first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2; And
Surely wait tropism's liquid crystal layer, be disposed at said sub-picture element unit top, tropism's liquid crystal layers such as this standard be optics etc. when not applying voltage to, and tropism's liquid crystal layer such as this standard is the optical anisotropy when being applied in voltage;
The Ke Er coefficient of tropism's liquid crystal layers such as this standard is 1e-9; Tropism's liquid crystal layers such as this standard are suitable for driving through a driving voltage V; This driving voltage position is in a driving voltage interval, and this driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when this accurate liquid crystal layer such as the tropism of grade is driven by this high driving voltage Vmax; Respectively the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit is Tmax; And when the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit respectively be Tmax 99% the time, the difference of this driving voltage V and this maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞6.70%.
14. a liquid crystal display comprises:
One picture element unit comprises a plurality of sub-picture elements unit, and respectively this sub-picture element unit has one first penetrating region and one second penetrating region at least, and respectively this sub-picture element unit comprises:
One switch module;
One pixel electrode electrically connects with this switch module, and this pixel electrode has a plurality of first strip patterns;
One common electrode is electrically insulated with this pixel electrode, and this common electrode has a plurality of second strip patterns; And said first strip pattern and said second strip pattern are alternately arranged; In this first penetrating region, respectively the width of this first strip pattern is L1, and respectively the gap between this first strip pattern and adjacent second strip pattern is S1; In this second penetrating region; Respectively the width of this first strip pattern is L2, and respectively the gap between this first strip pattern and adjacent second strip pattern is S2, wherein L1 ≠ L2 or S1 ≠ S2 or L1/S1 ≠ L2/S2; And
Surely wait tropism's liquid crystal layer, be disposed at said sub-picture element unit top, tropism's liquid crystal layers such as this standard be optics etc. when not applying voltage to, and tropism's liquid crystal layer such as this standard is the optical anisotropy when being applied in voltage;
The Ke Er coefficient of tropism's liquid crystal layers such as this standard is 1e-9; Tropism's liquid crystal layers such as this standard are suitable for driving through a driving voltage V; This driving voltage position is in a driving voltage interval, and this driving voltage interval is defined by a minimum drive voltage Vmin and high driving voltage Vmax, when this accurate liquid crystal layer such as the tropism of grade is driven by this high driving voltage Vmax; Respectively the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit is Tmax; And when the penetrance of the tropism's liquid crystal layers such as this standard in this sub-picture element unit respectively be Tmax 97% the time, the difference of this driving voltage V and this maximum drive voltage Vmax is Δ V, and (Δ V/Vmax)＞10.50%.
15., it is characterized in that this switch module comprises a transistor, and said first strip pattern is electrically connected to each other according to described liquid crystal display one of in the claim 11 to 14.
16. according to described liquid crystal display one of in the claim 11 to 14; It is characterized in that; This switch module comprises two-transistor; Said first strip pattern constitutes the two sub-pixel electrodes that are electrically insulated each other, and respectively this transistor electrically connects with a sub-pixel electrode wherein respectively, and part first strip pattern that belongs to same sub-pixel electrode is electrically connected to each other.
17. liquid crystal display according to claim 16 is characterized in that, a sub-pixel electrode is positioned at this first penetrating region, and another sub-pixel electrode is positioned at this second penetrating region.
18., it is characterized in that L1=L2, and S1 ≠ S2 according to described liquid crystal display one of in the claim 11 to 14.
19., it is characterized in that the area of this first penetrating region equals the area of this second penetrating region in fact according to described liquid crystal display one of in the claim 11 to 14.
20., it is characterized in that the area of this first penetrating region is not equal to the area of this second penetrating region according to described liquid crystal display one of in the claim 11 to 14.
21., it is characterized in that tropism's liquid crystal layers such as this standard are blue phase liquid crystal according to described liquid crystal display one of in the claim 11 to 14.
22. according to described liquid crystal display one of in the claim 11 to 14; It is characterized in that, be positioned at this first penetrating region tropism's liquid crystal layers such as this standard voltage-penetrance curve VT1 and to be positioned at the voltage of tropism's liquid crystal layers such as this standard of this second penetrating region-penetrance curve VT2 different.
23. liquid crystal display according to claim 22; It is characterized in that; Respectively the area of this first penetrating region is A1; Respectively the area of this second penetrating region is A2, and the accurate equivalent voltage-penetrance curve VT=that waits tropism's liquid crystal layer of this in this sub-picture element unit [(VT1 * A1)+(VT2 * A2)]/(A1+A2) respectively.
24. according to described liquid crystal display one of in the claim 11 to 14; It is characterized in that; Tropisms such as this standard certainly wait the complex index of refraction (Δ n) of tropism's liquid crystal layer be proportional to this pixel electrode and this common electrode between electric field (E), or the complex index of refraction (Δ n) of tropism's liquid crystal layer such as this standard be proportional to this pixel electrode and this common electrode between square (E of electric field
2).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101418A (en) * | 2006-07-07 | 2008-01-09 | 株式会社日立显示器 | Optically isotropic liquid crystal materials, liquid crystal display panel using the same and liquid crystal display |
Non-Patent Citations (2)
| Title |
|---|
| LINGHUI RAO etc.Emerging Liquid Crystal Based On the Kerr Effect.<<Mol.Cryst.Liq.Cryst>>.2010,第527卷 * |
| Zhibing Ge etc.Modeling of Blue Phase Liquid Crystal Display.<<DISPLAY TECHNOLOGY>>.2009,第5卷(第7期), * |
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| CN101950103A (en) | 2011-01-19 |
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