One-sided anti-peeping LCD display device

Abstract

The one-sided anti-spying liquid crystal display device includes, in order along the light output side, a backlight panel (1), a lower polarizing plate (2), a display panel (3), an upper polarizing plate (4), and a dye-doped liquid crystal panel (5), the display panel (3) including at least one substrate, at least one conductive layer, and a layer of a first liquid crystal composition, the dye-doped liquid crystal panel (5) including a first substrate (5-1), a first conductive layer, a dye-doped liquid crystal layer, and a second substrate (5-6), the dye-doped liquid crystal layer including a second liquid crystal composition (5-8) and dye molecules (5-7). The liquid crystal display device has a high anti-spying effect in one-sided viewing angle anti-spying mode, an excellent wide viewing angle on the opposite side, and a high viewing angle display effect in the wide viewing angle mode.

Description

[Technical field]

[0001] The present invention relates to a liquid crystal display device, and more particularly to a one-sided anti-peek type liquid crystal display device. [Background technology]

[0002] With the development of display technology, flat display devices such as liquid crystal displays (LCDs) have been widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, and computers due to their advantages such as high quality, energy saving, environmental friendliness, very thin body, and wide range of applications.

[0003] The viewing angle range is an important performance index of the LCD panel. The LCD panel needs to change the polarization state of the transmitted light by adjusting the arrangement of the liquid crystal molecules to realize the display function. Due to the influence of the optical anisotropy of the liquid crystal molecules, the viewing angle of the LCD is smaller than that of the cathode ray tube display. With the development of technology, in order to expand the viewing angle range of the LCD, technologies such as Vertical Alignment (VA) mode, Polymer Vertical Alignment (PVA) mode, In-Plane Switching (IPS) mode, Fringe Field Switching (FFS) mode, etc. have been developed to realize the wide viewing angle display of the LCD.

[0004] However, with the development of society, people have different demands for the viewing angle of liquid crystal displays in different application scenarios. For example, when a user is in a private environment and has a demand for confidentiality, such as when entering a withdrawal password, viewing personal information while riding on public transport, or during business negotiations, they all require the display to have a narrow viewing angle in order to prevent peeping and protect personal privacy. When a user is in an environment where there is a demand for sharing, such as when viewing a display device together with others, they require the display to have a wide viewing angle in order to realize video conference screen sharing. In addition, with the promotion of intelligent devices, the demand for displays is not only to realize switching between wide and narrow viewing angles, but also to realize a narrow viewing angle at a specific angle while still having the function of a wide viewing angle at the relative angle, for example, to realize a normal display at a normal viewing angle (theta=-30° to 30°) and prevent peeping at a side viewing angle (theta=-50° to -30°).

[0005] Currently, there are several methods for switching between wide and narrow viewing angles in liquid crystal display devices:

[0006] In the first type of method, this is achieved by attaching an anti-peep film to the display, and when it is necessary to prevent peeping, the anti-peep film is used to cover the display and reduce the viewing angle. However, this method requires a separate anti-peep film, which is inconvenient for users, and one anti-peep film can only prevent peeping from one viewing angle, and after attaching the anti-peep film, the anti-peep viewing angle is fixed, and a narrow viewing angle can only be achieved in that specific direction, and wide viewing angle display cannot be restored.

[0007] In the second type, a dual light source backlight system is provided in the liquid crystal display device to adjust the viewing angle for display, and the dual light source backlight system is composed of a combination of two stacked light guide plates and an inverted prism sheet, and the upper light guide plate and the inverted prism sheet are combined to change the traveling direction of light rays, limiting the light rays to a relatively narrow angle range, thereby realizing the narrow viewing angle of the liquid crystal display, and the bottom light guide plate and the inverted prism sheet can be combined to realize a wide viewing angle. However, although such a dual light source backlight system can realize the switching between a wide viewing angle and a narrow viewing angle, it cannot realize the function of one angle being a wide viewing angle and another angle being a narrow viewing angle, i.e., the function of one side being a narrow viewing angle.

[0008] In the third method, the driving electrodes in the liquid crystal display panel are divided into two types, one of which is a wide viewing angle display driving electrode and the other is a viewing angle control electrode. When an appropriate voltage is applied to the viewing angle control electrode, an appropriate light leakage occurs in the liquid crystal display device, and switching between a wide viewing angle and a narrow viewing angle can be realized. However, by providing two types of electrodes, a wide viewing angle display driving electrode and a viewing angle control electrode, in the liquid crystal display device, the brightness of the liquid crystal display device panel is reduced and the manufacturing process becomes complicated. In addition, it is also impossible to realize the function of one angle being a wide viewing angle and another angle being a narrow viewing angle, i.e., the function of one side being a narrow viewing angle.

[0009] How to obtain a liquid crystal display device with a narrow viewing angle on one side and still a wide viewing angle on the other side is a problem to be solved in the field. Summary of the Invention [Problem to be solved by the invention]

[0010] OBJECT OF THEINVENTION The object of the present invention is to provide a one-sided anti-peep type liquid crystal display device which has a high anti-peep effect in one-sided viewing angle anti-peep mode, an excellent wide viewing angle on the opposite side, and a high viewing angle display effect in the wide viewing angle mode. [Means for solving the problem]

[0011] In order to achieve the above object of the present invention, a one-sided anti-spying liquid crystal display device according to the present invention includes, along a light output side, a backlight panel, a lower polarizing plate, a display panel, an upper polarizing plate and a dye-doped liquid crystal panel, The display panel includes at least one substrate, at least one conductive layer, and a layer of a first liquid crystal composition; The dye-doped liquid crystal panel includes a first substrate, a first conductive layer, a dye-doped liquid crystal layer, and a second substrate; The dye-doped liquid crystal layer includes a second liquid crystal composition and dye molecules.

[0012] In some embodiments of the present invention, the orientation of the upper polarizer and the orientation of the lower polarizer are each independently vertical or horizontal, preferably the orientation of the upper polarizer and the orientation of the lower polarizer are different, more preferably the orientation of the upper polarizer is vertical, and even more preferably the orientation of the upper polarizer is vertical and the orientation of the lower polarizer is horizontal.

[0013] In some embodiments of the present invention, in an energized state, the display panel may generate a transverse electric field or a vertical electric field, and preferably, in an energized state, the display panel generates a transverse electric field.

[0014] In some embodiments of the present invention, the display mode of the display panel is a TN display mode, an STN display mode, a VA display mode, an IPS display mode, an FFS display mode, a PSA display mode or a PSVA display mode, and preferably, the display mode of the display panel is the IPS display mode or the FFS display mode.

[0015] In some embodiments of the present invention, the display panel comprises a first substrate, a first conductive layer, a layer of a first liquid crystal composition, and a second substrate, further comprising a second conductive layer between the layer of the first liquid crystal composition and the second substrate.

[0016] In some embodiments of the present invention, a display panel includes a first substrate, a first conductive layer, a layer of a first liquid crystal composition, and a second substrate.

[0017] In some embodiments of the present invention, the display panel comprises a first substrate, a first conductive layer, a first alignment layer, a layer of a first liquid crystal composition, a second alignment layer, and a second substrate, further comprising a second conductive layer between the second substrate and the second alignment layer.

[0018] In some embodiments of the present invention, a display panel comprises a first substrate, a first conductive layer, a first alignment layer, a layer of a first liquid crystal composition, a second alignment layer, and a second substrate.

[0019] In some embodiments of the present invention, a display panel comprises a first substrate, a first conductive layer, a first alignment layer, a layer of a first liquid crystal composition, a second alignment layer, a second conductive layer, and a second substrate.

[0020] In some embodiments of the present invention, the dielectric anisotropy of the first liquid crystal composition in the first liquid crystal composition layer of the display panel is >0 (eg, >1, >2, >3, >4, >5, >6, >7).

[0021] In some embodiments of the invention, the first and second alignment layers comprise a polyimide, a polymerized derivative of a polyamic acid that is decomposable or heterogeneous upon contact with light, or a polyorganosiloxane compound.

[0022] In some embodiments of the present invention, the display mode of the dye-doped liquid crystal panel is an IPS display mode or an FFS display mode to generate components perpendicular and parallel to the direction of the incident light and the long axis of the dye-doped liquid crystal.

[0023] In some embodiments of the present invention, in an energized state, the dye-doped liquid crystal panel generates a transverse electric field to generate components perpendicular and parallel to the direction of the incident light and the long axis of the dye-doped liquid crystal.

[0024] In some embodiments of the present invention, a dye-doped liquid crystal panel includes a first substrate, a first conductive layer, a first alignment layer, a dye-doped liquid crystal layer, a second alignment layer, and a second substrate.

[0025] In some embodiments of the present invention, the dielectric anisotropy of the second liquid crystal composition in the dye-doped liquid crystal layer of the dye-doped liquid crystal panel is >0 (eg, >1, >2, >3, >4, >5, >6, >7).

[0026] In some embodiments of the invention, the thickness of the dye-doped liquid crystal layer is 1 to 12 μm, e.g., 1 μm, 1.2 μm, 1.4 μm, 1.6 μm, 1.8 μm, 2 μm, 2.2 μm, 2.4 μm, 2.6 μm, 2.8 μm, 3 μm, 3.2 μm, 3.4 μm, 3.6 μm, 3.8 μm, 4 μm, 4.2 μm, 4.4 μm, 4.6 μm, 4.8 μm, 5 μm, 5.2 μm, 5.4 μm, 5.6 μm, 5.8 μm, 6 μm, 6.2 μm , 6.4 μm, 6.6 μm, 6.8 μm, 7 μm, 7.2 μm, 7.4 μm, 7.6 μm, 7.8 μm, 8 μm, 8.2 μm, 8.4 μm, 8.6 μm, 8.8 μm, 9 μm, 9.2 μm, 9.4 μm, 9.6 μm, 9.8 μm, 10 μm, 10.2 μm, 10.4 μm, 10.6 μm, 10.8 μm, 11 μm, 11.2 μm, 11.4 μm, 11.6 μm, 11.8 μm, 12 μm, preferably 4 to 10 μm.

[0027] In some embodiments of the present invention, the one-sided anti-spying liquid crystal display device of the present invention includes a backlight panel, a lower polarizing plate, a display panel, an upper polarizing plate, and a dye-doped liquid crystal panel in order along the light output side; The display panel includes a first substrate, a first conductive layer, a layer of a first liquid crystal composition, and a second substrate; The dye-doped liquid crystal panel includes a first substrate, a first conductive layer, a first alignment layer, a dye-doped liquid crystal layer, a second alignment layer, and a second substrate; the dye-doped liquid crystal layer comprises a second liquid crystal composition and dye molecules; The display modes of the display panel and the dye-doped liquid crystal panel are independently either the IPS display mode or the FFS display mode.

[0028] In some embodiments of the present invention, the one-sided anti-spying liquid crystal display device of the present invention includes a backlight panel, a lower polarizing plate, a display panel, an upper polarizing plate, and a dye-doped liquid crystal panel in order along the light output side; The display panel includes a first substrate, a first conductive layer, a first alignment layer, a layer of a first liquid crystal composition, a second alignment layer, and a second substrate; The dye-doped liquid crystal panel includes a first substrate, a first conductive layer, a first alignment layer, a dye-doped liquid crystal layer, a second alignment layer, and a second substrate; the dye-doped liquid crystal layer comprises a second liquid crystal composition and dye molecules; The display modes of the display panel and the dye-doped liquid crystal panel are independently either the IPS display mode or the FFS display mode.

[0029] In some embodiments of the present invention, in the dye-doped liquid crystal panel, the dye molecules are dichroic dye molecules.

[0030] In some embodiments of the present invention, when a voltage is applied only to the display panel, the liquid crystal display device of the present invention is in a wide viewing angle mode, and when a voltage is applied simultaneously to the display panel and the dye-doped liquid crystal panel, the liquid crystal display device of the present invention is in a one-sided viewing angle anti-spy mode.

[0031] In some embodiments of the present invention, the driving voltage of the display panel is 1V to 10V (1V, 1.5V, 2V, 2.5V, 3V, 3.5V, 4V, 4.5V, 5V, 5.5V, 6V, 6.5V, 7V, 7.5V, 8V, 8.5V, 9V, 9.5V, 10V), preferably 2V to 10V.

[0032] In some embodiments of the present invention, the driving voltage of the dye-doped liquid crystal panel is 1V to 10V (1V, 1.5V, 2V, 2.5V, 3V, 3.5V, 4V, 4.5V, 5V, 5.5V, 6V, 6.5V, 7V, 7.5V, 8V, 8.5V, 9V, 9.5V, 10V), preferably 2V to 10V.

[0033] In some embodiments of the present invention, in the energized state, the dye-doped liquid crystal panel generates a transverse electric field, driving the second liquid crystal composition and the dye molecules to rotate in-plane parallel to the substrate, and the rotation angle of the second liquid crystal composition and the dye molecules varies according to the applied voltage. According to the dichroism of the dye molecules, when the polarization direction of the incident light and the long axis of the dye-doped liquid crystal are parallel to each other, it is expressed that the light is basically absorbed by the dye molecules, and the outgoing light is not emitted from the dye-doped liquid crystal panel; when the polarization direction of the incident light and the long axis of the dye-doped liquid crystal molecules are perpendicular to each other, it is expressed that the light can be normally transmitted through the dye-doped liquid crystal panel; according to the applied voltage, the polarization direction of the incident light forms a different vector angle with the dye-doped liquid crystal molecules, and the light parallel to the long axis of the dye-doped liquid crystal molecules is absorbed, and the light perpendicular to the long axis of the dye-doped liquid crystal molecules passes normally, and the angle at which the light is absorbed forms a narrow viewing angle, i.e., the specific angle of anti-peeping is realized; and the angle at which the light passes normally is displayed normally, i.e., the one-sided angle of anti-peeping is realized.

[0034] In some embodiments of the present invention, the dichroic dye molecules are one or more dyes selected from the group consisting of ouzo, anthraquinone, phthalocyanine, cyanine, indigoid, arylmethane, nitro, and nitroso groups.

[0035] In some embodiments of the present invention, the dichroic dye molecules are selected from the group consisting of ouzo and anthraquinone series.

[0036] In the present invention, the dichroic dyes have different absorption characteristics in the visible spectrum according to their structures, and a single dichroic dye mainly absorbs light of a specific wavelength, and the displayed color is the complementary color of all transmitted light. Since it is difficult to achieve black with a single dye, it is necessary to mix multiple dyes to absorb light of multiple wavelengths, and achieve uniform absorption in the visible light band according to the sensitivity of the human eye to light, which is called black. In the case of the second liquid crystal composition containing a dichroic dye, the more uniform the absorption of the second liquid crystal composition for light of different wavelengths in the visible light band, the more uniform the distribution of the transmittance curve will be, and the higher the display effect of the display device will be. Therefore, it is necessary to select an appropriate ratio in the combination of multiple dichroic dyes, which will result in excellent chromaticity reproducibility, and when the second liquid crystal composition has high compatibility with the dye, the higher the content of the dichroic dye that can be added, the higher the contrast will be.

[0037] In some embodiments of the present invention, the dichroic dye molecule is selected from the group consisting of the following compounds: [ka] [ka] [ka]

[0038] In some embodiments of the present invention, the weight percentage of the dichroic dye in the second liquid crystal composition is 0.01% to 10% (including any numerical value or subrange within that range), for example, 0.1%, 0.5%, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.2%, 2.5%, 2.8%, 3%, 3.2%, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8%, 5%, 5.2%, 5.5%, 5.8%, 6%, 6.2%, 6.5%, 6.8%, 7%, 7.2%, 7.5%, 7.8%, 8%, 8.2%, 8.5%, 8.8%, 9%, 9.2%, 9.5%, 9.8%, 10%, or a range between any two of these values, preferably 1% to 6%, and more preferably 2% to 4% to obtain a higher narrow viewing angle anti-peeping effect.

[0039] In some embodiments of the present invention, in the dye-doped liquid crystal panel, the second liquid crystal composition comprises at least one compound of general formula M, [ka] During the ceremony, R M1 and R M2 each independently represents a linear or branched alkyl group containing 1 to 12 carbon atoms; [ka] in which one or two or more non-adjacent -CH2- groups in a linear or branched alkyl group containing 1 to 12 carbon atoms may each be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O-, or -O-CO-; [ka] are each independently [ka] represents [ka] one or more -CH2- in the ring may be replaced by -O-, and one or more single bonds in the ring may be replaced by a double bond; [ka] at most one -H may be replaced by halogen; Z M1 and Z M2 each independently represents a single bond, -CO-O-, -O-CO-, -CHO-, -OCH-, -C≡C-, -CH=CH-, -CHCH- or -(CH)-; n M represents 0, 1 or 2; n M If =2, [ka] may be the same or different, Z M2 may be the same or different.

[0040] The alkenyl group in the present invention is preferably selected from the groups represented by any one of formulas (V1) to (V9), and particularly preferably selected from the groups represented by formulas (V1), (V2), (V8) and (V9). The groups represented by formulas (V1) to (V9) are [ka] and In the formula, * represents a carbon atom in the attached ring structure.

[0041] The alkenyloxy group of the present invention is preferably selected from groups represented by any one of formulas (OV1) to (OV9), and particularly preferably selected from groups represented by formulas (OV1), (OV2), (OV8) and (OV9). The groups represented by formulas (OV1) to (OV9) are: [ka] and In the formula, * represents a carbon atom in the attached ring structure.

[0042] In some embodiments of the present invention, the compound of general formula M is [ka] [ka] The compound is selected from the group consisting of:

[0043] In some embodiments of the present invention, the weight percentage of the compound of general formula M in the second liquid crystal composition is 0.1% to 90% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 100%, 102%, 104%, 105%, 106%, 107%, 108%, 109%, 109, 108%, 109, 109, 110, 111, 120, 122, 123, 124, 125, 126, 127, 128, The weight percentage of the compound of general formula M in the second liquid crystal composition is 4%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58%, 60%, 62%, 64%, 66%, 68%, 70%, 72%, 74%, 76%, 78%, 80%, or a range between any two of these values, and preferably, the weight percentage of the compound of general formula M in the second liquid crystal composition is 1% to 80%.

[0044] In some embodiments of the present invention, in order to obtain a high viewing angle display effect in wide viewing angle mode and a high anti-spy effect in one-sided viewing angle anti-spy mode, the compound of general formula M is selected from the group consisting of a compound of general formula M-1, a compound of general formula M-2, a compound of general formula M-6, a compound of general formula M-12, a compound of general formula M-16, a compound of general formula M-19, a compound of general formula M-26, and a compound of general formula M-29.

[0045] In some embodiments of the present invention, in order to obtain a high viewing angle display effect in the wide viewing angle mode and a high anti-peep effect in the one-sided viewing angle anti-peep mode, the compound of general formula M includes at least two selected from the group consisting of the compound of general formula M-1, the compound of general formula M-12, the compound of general formula M-16, and the compound of general formula M-29.

[0046] In some embodiments of the present invention, in order to obtain a high viewing angle display effect in the wide viewing angle mode and a high anti-spy effect in the one-sided viewing angle anti-spy mode, the compound of general formula M includes at least two compounds of general formula M-1, and preferably includes at least one (e.g., two, three) of R M1 or R M2 are each independently an alkenyl group containing 2 to 5 carbon atoms.

[0047] In some embodiments of the present invention, in order to obtain a high viewing angle display effect in the wide viewing angle mode and a high anti-spy effect in the one-sided viewing angle anti-spy mode, the compound of general formula M includes at least two compounds of general formula M-12, preferably at least one (e.g., two, three) of R M1 or R M2 are each independently an alkenyl group containing 2 to 5 carbon atoms.

[0048] In some embodiments of the present invention, in order to obtain a high viewing angle display effect in the wide viewing angle mode and a high anti-spy effect in the one-sided viewing angle anti-spy mode, the compound of general formula M includes at least two compounds of general formula M-16, and preferably includes at least one (e.g., two, three) of R M1 or R M2 are each independently an alkenyl group containing 2 to 5 carbon atoms.

[0049] In some embodiments of the present invention, R M1 and R M2 are preferably each independently a linear or branched alkyl group containing 1 to 10 carbon atoms, a linear or branched alkoxy group containing 1 to 9 carbon atoms, or a linear or branched alkenyl group containing 2 to 10 carbon atoms; R M1 and R M2are more preferably each independently a linear or branched alkyl group containing 1 to 8 carbon atoms, a linear or branched alkoxy group containing 1 to 7 carbon atoms, or a linear or branched alkenyl group containing 2 to 8 carbon atoms; R M1 and R M2 are even more preferably each independently a straight-chain or branched-chain alkyl group containing 1 to 5 carbon atoms, a straight-chain or branched-chain alkoxy group containing 1 to 4 carbon atoms, or a straight-chain or branched-chain alkenyl group containing 2 to 5 carbon atoms.

[0050] In some embodiments of the present invention, R M1 and R M2 are preferably each independently a straight-chain alkenyl group containing 2 to 8 carbon atoms, and more preferably each independently a straight-chain alkenyl group containing 2 to 5 carbon atoms.

[0051] In some embodiments of the present invention, preferably, R M1 and R M2 One of these is a linear alkenyl group containing 2 to 5 carbon atoms, and the other is a linear alkyl group containing 1 to 5 carbon atoms.

[0052] In some embodiments of the present invention, R M1 and R M2 are preferably each independently a linear alkyl group containing 1 to 8 carbon atoms or a linear alkoxy group containing 1 to 7 carbon atoms, and more preferably each independently a linear alkyl group containing 1 to 5 carbon atoms or a linear alkoxy group containing 1 to 4 carbon atoms.

[0053] In some embodiments of the present invention, preferably, R M1 and R M2one of which is a linear alkyl group containing 1 to 5 carbon atoms, and the other is a linear alkyl group containing 1 to 5 carbon atoms or a linear alkoxy group containing 1 to 4 carbon atoms, and more preferably R M1 and R M2 are each independently a straight chain alkyl group containing 1 to 5 carbon atoms.

[0054] In some embodiments of the present invention, when reliability is important, preferably, R M1 and R M2 are both alkyl groups, and when emphasis is placed on reducing the volatility of the compound, preferably, R M1 and R M2 are both alkoxy groups, and when a reduction in viscosity is important, R M1 and R M2 At least one of the groups is an alkenyl group.

[0055] In some embodiments of the present invention, in the dye-doped liquid crystal panel, the second liquid crystal composition further comprises at least one compound of general formula A-1 and / or general formula A-2, [ka] During the ceremony, R A1 and R A2 each independently represents a linear or branched alkyl group containing 1 to 12 carbon atoms; [ka] one or two or more non-adjacent -CH2- groups in the linear or branched alkyl group containing 1 to 12 carbon atoms may be each independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-; [ka] one or more -H in each independently may be replaced by -F or -Cl; [ka] are each independently [ka] represents [ka] one or more -CH2- in the ring may be replaced by -O-, and one or more single bonds in the ring may be replaced by a double bond; [ka] one or more -H in the ring may be independently replaced by -F, -Cl or -CN, and one or more -CH= in the ring may be independently replaced by -N=; Z A11 , Z A21 and Z A22 each independently represents a single bond, -CH2CH2-, -CF2CF2-, -CO-O-, -O-CO-, -O-CO-O-, -CH=CH-, -CF=CF-, -CH2O- or -OCH2-, L A11 , L A12 , L A13 , L A21 and L A22 each independently represents -H, an alkyl group having 1 to 3 carbon atoms, or a halogen; X A1 and X A2 each independently represents a halogen, a halogenated alkyl group or a halogenated alkoxy group containing 1 to 5 carbon atoms, or a halogenated alkenyl group or a halogenated alkenyloxy group containing 2 to 5 carbon atoms; n A11 represents 0, 1, 2 or 3; n A11 = 2 or 3, [ka] may be the same or different, Z A11 may be the same or different, n A12 represents 1 or 2, n A12 If =2, [ka] may be the same or different, n A2 represents 0, 1, 2 or 3; n A2 = 2 or 3, [ka] may be the same or different, Z A21 may be the same or different.

[0056] In some embodiments of the present invention, the weight percentage of at least one compound of general formula A-1 and / or general formula A-2 in the second liquid crystal composition is 0.1% to 60% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58%, 60%, or a range between any two numerical values ​​therein.

[0057] In some embodiments of the present invention, the compound of formula A-1 is [ka] [ka] is selected from the group consisting of compounds During the ceremony, R A1represents a linear or branched alkyl group containing 1 to 8 carbon atoms, one or two or more non-adjacent -CH2- groups in the linear or branched alkyl group containing 1 to 8 carbon atoms may each be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-, and one or more -H groups in the linear or branched alkyl group containing 1 to 8 carbon atoms may each be independently replaced by -F or -Cl; R v and R w each independently represents -CH2- or -O-; L A11 , L A12 , L A11 ', L A12 ', L A14 , L A15 and L A16 each independently represents -H or -F; L A13 and L A13 ' each independently represents -H or -CH3; X A1 represents -F, -CF3 or -OCF3, v and w each independently represent 0 or 1.

[0058] In some embodiments of the present invention, in order to obtain a high viewing angle display effect in the wide viewing angle mode and a high anti-peep effect in the one-sided viewing angle anti-peep mode, the compound of general formula A-1 is selected from the group consisting of the compound of general formula A-1-1, the compound of general formula A-1-7, and the compound of general formula A-1-15.

[0059] In some embodiments of the present invention, in order to obtain a high viewing angle display effect in wide viewing angle mode and a high anti-peeping effect in one-sided viewing angle anti-peeping mode, the compound of general formula A-1 comprises at least two (for example, three, four) compounds of general formula A-1-15.

[0060] In some embodiments of the present invention, the weight percentage of the compound of general formula A-1 in the second liquid crystal composition is 0.1% to 50% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, or a range between any two numerical values ​​therein, and preferably, the weight percentage of the compound of general formula A-1 in the second liquid crystal composition is 0.1% to 40%.

[0061] In some embodiments of the present invention, the compound of formula A-2 is [ka] [ka] is selected from the group consisting of compounds During the ceremony, R A2 represents a linear or branched alkyl group containing 1 to 8 carbon atoms, one or two or more non-adjacent -CH2- groups in the linear or branched alkyl group containing 1 to 8 carbon atoms may each be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-, and one or more -H groups in the linear or branched alkyl group containing 1 to 8 carbon atoms may each be independently replaced by -F or -Cl; L A21 , L A22 , L A23 , L A24 and L A25 each independently represents -H or -F; X A2 represents -F, -CF3, -OCF3 or -CH2CH2CH=CF2.

[0062] In some embodiments of the present invention, in order to obtain a high viewing angle display effect in the wide viewing angle mode and a high anti-peep effect in the one-sided viewing angle anti-peep mode, the compound of general formula A-2 is selected from the group consisting of a compound of general formula A-2-1, a compound of general formula A-2-4, a compound of general formula A-2-6, a compound of general formula A-2-12, a compound of general formula A-2-13, a compound of general formula A-2-15, a compound of general formula A-2-17, and a compound of general formula A-2-18.

[0063] In some embodiments of the present invention, in order to obtain high viewing angle display effect in wide viewing angle mode and high anti-peeping effect in one-sided viewing angle anti-peeping mode, the compound of general formula A-2 comprises at least one compound of general formula A-2-4 or compound of general formula A-2-12.

[0064] In some embodiments of the present invention, the weight percentage of the compound of general formula A-2 in the second liquid crystal composition is 0.1% to 50% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, or a range between any two numerical values ​​therein.

[0065] In some embodiments of the present invention, in order to obtain a higher narrow viewing angle anti-spy effect and to enhance the compatibility between the second liquid crystal composition and the dye, in the dye-doped liquid crystal panel, the second liquid crystal composition comprises at least one of the compounds of general formula A-1 and general formula A-2.

[0066] In some embodiments of the present invention, in the dye-doped liquid crystal panel, the second liquid crystal composition further comprises at least one compound of general formula N, [ka] During the ceremony, R N1 and R N2each independently represents a linear or branched alkyl group containing 1 to 12 carbon atoms; [ka] in which one or two or more non-adjacent -CH2- groups in a linear or branched alkyl group containing 1 to 12 carbon atoms may each be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O-, or -O-CO-; [ka] are each independently [ka] represents [ka] one or more -CH2- in the ring may be replaced by -O-, and one or more single bonds in the ring may be replaced by a double bond; [ka] one or more -H in the ring may be independently replaced by -F, -Cl or -CN, and one or more -CH= in the ring may be independently replaced by -N=; Z N1 and Z N2 each independently represents a single bond, -CO-O-, -O-CO-, -CHO-, -OCH-, -CH=CH-, -C≡C-, -CHCH-, -CFCF-, -(CH)-, -CFO-, or -OCF-, L N1 and L N2 each independently represents -H, a halogen, an alkyl group containing 1 to 3 carbon atoms, or an alkoxy group containing 1 to 3 carbon atoms; n N1 represents 0, 1, 2 or 3; n N2 represents 0 or 1, 0≦n N1 +n N2 ≦3, nN1 = 2 or 3, [ka] may be the same or different, Z N1 may be the same or different.

[0067] In some embodiments of the present invention, the compound of general formula N is [ka] [ka] [ka] The compound is selected from the group consisting of:

[0068] In some embodiments of the present invention, the weight percentage of the compound of general formula N in the second liquid crystal composition is 0.1% to 60% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58%, 60%, or a range between any two numerical values ​​therein, and preferably, the weight percentage of the compound of general formula N in the second liquid crystal composition is 1% to 55%.

[0069] In some embodiments of the present invention, preferably, R N1 and R N2 each independently represents a linear or branched alkyl group containing 1 to 10 carbon atoms, a linear or branched alkoxy group containing 1 to 9 carbon atoms, or a linear or branched alkenyl group containing 2 to 10 carbon atoms, and more preferably R N1 and R N2each independently represents a linear or branched alkyl group containing 1 to 8 carbon atoms, a linear or branched alkoxy group containing 1 to 7 carbon atoms, or a linear or branched alkenyl group containing 2 to 8 carbon atoms, and more preferably R N1 and R N2 each independently represents a linear or branched alkyl group containing 1 to 5 carbon atoms, a linear or branched alkoxy group containing 1 to 4 carbon atoms, or a linear or branched alkenyl group containing 2 to 5 carbon atoms.

[0070] In some embodiments of the present invention, in the dye-doped liquid crystal panel, the second liquid crystal composition further comprises at least one compound of general formula F, [ka] During the ceremony, R F1 and R F2 are each independently -H, a halogen, or a linear or branched alkyl group containing 1 to 12 carbon atoms; [ka] represents a linear or branched alkyl group having 1 to 12 carbon atoms; [ka] one or two or more non-adjacent -CH2- in the alkyl group may be each independently replaced by -C≡C-, -O-, -S-, -CO-, -CO-O- or -O-CO-; one or more -H in the linear or branched alkyl group containing 1 to 12 carbon atoms may each independently be replaced by -F or -Cl; [ka] are each independently [ka] represents [ka] one or more -CH2- in the ring may be replaced by -O-, and one or more single bonds in the ring may be replaced by a double bond; [ka] one or more -H in the ring may be independently replaced by -CN, -F or -Cl, and one or more -CH= in the ring may be replaced by -N=; X F represents -O-, -S- or -CO-; L F1 and L F2 each independently represents -H, -F, -Cl, -CF3, or -OCF3; Z F1 and Z F2 each independently represents a single bond, -O-, -CO-O-, -O-CO-, -CHO-, -OCH-, -CH=CH-, -C≡C-, -CHCH-, -CFCF-, -(CH)-, -CFO-, or -OCF-, n F1 and n F2 Each independently represents 0, 1 or 2; n F1 If represents 2, then [ka] may be the same or different, n F2 If represents 2, then [ka] may be the same or different, Z F2 may be the same or different, n F4 represents an integer from 0 to 4.

[0071] In some embodiments of the present invention, the compound of general formula F is [ka] [ka] [ka] is selected from the group consisting of compounds During the ceremony, R F2 ' represents a linear or branched alkoxy group containing 1 to 11 carbon atoms; X F1 and X F2 each independently represents -CH2- or -O-; n F3 represents an integer from 1 to 5 (e.g., 1, 2, 3, 4, or 5), R F3 represents a linear or branched alkyl group containing 1 to 5 carbon atoms, a linear or branched alkoxy group containing 1 to 4 carbon atoms, or a linear or branched alkenyl group containing 2 to 5 carbon atoms.

[0072] In some embodiments of the present invention, the weight percentage of the compound of general formula F in the second liquid crystal composition is 0.1% to 30% (including any numerical value or subrange therein), for example, 0.1%, 0.5%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, or a range between any two numerical values ​​therein, preferably 0.1% to 25%.

[0073] In some embodiments of the present invention, in the dye-doped liquid crystal panel, the second liquid crystal composition further comprises at least one polymerizable compound of the general formula RM, [ka] During the ceremony, [ka] are each independently [ka] represents [ka] one or more -CH2- in the ring may be replaced by -O-, and one or more single bonds in the ring may be replaced by a double bond; [ka] one or more -H are each independently -F, -Cl, -CN, -Sp3-P3, a halogenated or non-halogenated linear alkyl group containing 1 to 12 carbon atoms, a halogenated or non-halogenated linear alkoxy group containing 1 to 11 carbon atoms, [ka] and one or more -CH= in the ring may be replaced by -N=; [ka] teeth, [ka] represents [ka] one or more -H are each independently -F, -Cl, -CN, -Sp3-P3, a halogenated or non-halogenated linear alkyl group containing 1 to 12 carbon atoms, a halogenated or non-halogenated linear alkoxy group containing 1 to 11 carbon atoms, [ka] and one or more -CH= in the ring may be replaced by -N=; R1 is -H, halogen, -CN, -Sp2-P2, or a linear or branched alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms; [ka] represents a linear or branched alkyl group having 1 to 12 carbon atoms; [ka] in which one or two or more non-adjacent -CH2- groups may each independently be replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-; and one or more -H groups may each independently be replaced by -F or -Cl; P1, P2, and P3 each independently represent a polymerizable group. Sp1, Sp2, and Sp3 each independently represent a spacer group or a single bond; X0 represents -O-, -S- or -CO-; Z1 and Z2 each independently represent -O-, -S-, -CO-, -CO-O-, -O-CO-, -O-CO-O-, -CHO-, -OCH-, -CHS-, -SCH-, -CFO-, -OCF-, -CFS-, -SCF-, -(CH) d -, -CF2CH2-, -CH2CF2-, -(CF2) d -, -CH=CH-, -CF=CF-, -CH=CF-, -CF=CH-, -C≡C-, -CH=CH-CO-O-, -O-CO-CH=CH-, -CH2CH2-CO-O-, -O-CO-CH2CH2-, -CHR 1 -, -CR 1 R 2 - or a single bond, R 1 and R 2 each independently represents a linear or branched alkyl group containing 1 to 12 carbon atoms; d represents an integer of 1 to 4; a represents 0, 1 or 2; b represents 0 or 1; when a represents 2, [ka] may be the same or different, and Z1 may be the same or different.

[0074] In some embodiments of the present invention, a polymerizable compound of the general formula RM is [ka] [ka] [ka] is selected from the group consisting of compounds During the ceremony, X1~X 10 and X 12 each independently represents -F, -Cl, -Sp3-P3, a linear alkyl group or an alkoxy group containing 1 to 5 carbon atoms; [ka] Represents.

[0075] In some embodiments of the present invention, X1 to X 10 and X 12 each independently represents -F, -Cl, -Sp3-P3, -CH3 or -OCH3.

[0076] In some embodiments of the invention, Sp1 and Sp2 both represent a single bond.

[0077] Polymerizable groups according to the present invention are groups which are applicable to polymerization reactions (for example radical or ionic polymerization, addition polymerization or condensation polymerization) or to addition or condensation in the polymer backbone. For chain polymerization, polymerizable groups containing -CH=CH- or -C≡C- are particularly preferred, and for ring-opening polymerization, for example, oxetanyl or epoxy groups are particularly preferred.

[0078] In some embodiments of the present invention, the polymerizable groups P1, P2, and P3 are each independently [ka] or -SH, and preferably, the polymerizable groups P1, P2 and P3 each independently represent [ka] or -SH, and more preferably, the polymerizable groups P1, P2 and P3 each independently represent [ka] Represents.

[0079] As used herein, the term "spacer group" is known to those skilled in the art and described in the literature (e.g. Pure Appl. Chem. 2001, 73(5), 888 and C. Tschierske, G. Pelzl, S. Diele, Angew. Chem. 2004, 116, 6340-6368). As used herein, the term "spacer group" refers to a flexible group that connects a mesogenic group and a polymerizable group in a polymerizable compound. Typical spacer groups include, for example, -(CH2)p1-, -(CH2CH2O)q1-CH2CH2-, -(CH2CH2S)q1-CH2CH2-, -(CH2CH2NH)q1-CH2CH2-, -CR 0 R 00 -(CH2) p1 -or- (SiR 0 R 00 -O)p1-, where p1 represents an integer from 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12), q1 represents an integer from 1 to 3 (e.g., 1, 2, or 3), R 0 and R 00 each independently represents -H, a straight or branched alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms, or a cycloalkyl group containing 3 to 12 (e.g., 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms. Particularly preferred spacer groups are -(CH2)p1-, -(CH2)p1-O-, -(CH2)p1-O-CO-, -(CH2)p1-CO-O-, -(CH2)p1-O-CO-O-, or -CR 0 R00 -(CH2) p1 -It is.

[0080] In some embodiments of the present invention, the weight percentage of the polymerizable compound of general formula RM in the second liquid crystal composition is 0.001% to 5% (including any numerical value or subrange therein), for example, 0.001%, 0.002%, 0.004%, 0.005%, 0.006%, 0.008%, 0.01%, 0.02%, 0.04%, 0.06%, 0.08%, 0.1%, 0.2%, 0.25%, 0.26%, 0.27%, 0.28%, 0.29%, 0.3%, 0.32%, 0.33%, 0.34%, 0.35%, 0.4%, 0.5%, 0.6%, 0.8%, 1%, 1.2%, 1.6%, 1.8%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, or a range between any two of those numbers.

[0081] In some embodiments of the present invention, in the dye-doped liquid crystal panel, the second liquid crystal composition further comprises at least one self-alignment agent of general formula SA, [ka] During the ceremony, R S1 -Sp 1 -P 1 , a straight or branched chain alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms; [ka] one or two or more non-adjacent -CH2- groups in the linear or branched alkyl group containing 1 to 12 carbon atoms may be each independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-; [ka] one or more -H in each may be independently replaced by -F or -Cl; [ka] teeth, [ka] represents [ka] one or more -CH2- in the ring may be replaced by -O-, and one or more single bonds in the ring may be replaced by a double bond; Ls1 and Ls3 each independently represent -F, -Cl, -CN, -NO2, -NCO, -NCS, -OCN, -SCN, -C(O)N(R S0 )2, -C(O)R S0 , a straight or branched chain alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms; [ka] one or two or more non-adjacent -CH2- groups in the linear or branched alkyl group containing 1 to 12 carbon atoms may be each independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-; [ka] One or more -H in may each be independently replaced with -F, S0 represents a linear or branched alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms; Ls2 is -Sp 3 -P 2 or [ka] represents R S2 and R S3 each independently represents an anchor group, [ka] where * represents the site of attachment in the attached structure and p represents 1 or 2, and when p represents 2, then - Sp8-X2 may be the same or different, o represents 0 or 1; M S1 teeth, [ka] represents I S1 and J S1 each independently represents -CH2-, -O-, or -S-; N S1 represents =O or =S, V K1 , V K2 and V K3 each independently represents -CH= or -N=; X 1 and X 2 are each independently -H, -OH, -SH, -NH2, or -NHR 11 , -N(R 11 )2, -NHC(O)R 11 , -OR 11 , -C(O)OH, -CHO, or a linear or branched, halogenated or non-halogenated alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms; X 1 and X 2 At least one of the groups is -OH, -SH, -NH2, -NHR 11 , —C(O)OH, and —CHO; R 11 represents a linear or branched alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms; P1 , P 2 and P 3 each independently represents a polymerizable group, Sp 1 , Sp 2 , Sp 3 , Sp 4 , Sp 5 , Sp 7 , and Sp 8 each independently represents a spacer group or a single bond, Sp 6 are each independently [ka] represents Z 1 and Z 2 are each independently -O-, -S-, -CO-, -CO-O-, -O-CO-, -O-CO-O-, -CHO-, -OCH-, -CHS-, -SCH-, -CFO-, -OCF-, -CFS-, -SCF-, -(CH) d -, -CF2CH2-, -CH2CF2-, -(CF2) d -, -CH=CH-, -CF=CF-, -CH=CF-, -CF=CH-, -C≡C-, -CH=CH-CO-O-, -O-CO-CH=CH-, -CH2CH2-CO-O-, -O-CO-CH2CH2-, -CHR 1 -, -CR 1 R 2 - or a single bond, R 1 and R 2 each independently represents a linear or branched alkyl group containing 1 to 12 carbon atoms; d represents an integer of 1 to 4; n s1 represents 1, 2 or 3; n s2 represents 1, 2, 3 or 4, and n s1 +n s2 ≧3, n s1 When represents 2 or 3, [ka] may be the same or different, n s2represents 2, 3 or 4, [ka] may be the same or different, p s1 , p s2 , p s3 and p s4 Each independently represents 0, 1 or 2; p s1 When represents 2, Ls2 may be the same or different, and p s2 When represents 2, Ls1 may be the same or different, and p s3 If represents 2, then -Sp 5 -R S3 may be the same or different, and p s4 When represents 2, Ls3 may be the same or different.

[0082] In some embodiments of the present invention, Ls2 is -Sp 3 -P 2 , [ka] Represents.

[0083] In some embodiments of the present invention, Sp 3 , Sp 4 , and Sp 5 are each independently -(CH2)p1-, -(CH2)p1-O-, -(CH2)p1-O-CO-, -(CH2)p1-CO-O-, -(CH2)p1-O-CO-O-, or -CR 0 R 00 -(CH2) p1 -, where p1 represents an integer from 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12), R 0 and R 00each independently represents -H, a linear or branched alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms, or a cycloalkyl group containing 3 to 12 (e.g., 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms, and preferably represents Sp 3 , Sp 4 , and Sp 5 each independently represents -(CH2)p1- or -(CH2)p1-O-.

[0084] In some embodiments of the present invention, the self-aligning agent of general formula SA is [ka] [ka] [ka] is selected from the group consisting of compounds During the ceremony, Ls 31 are -F, -Cl, -CN, -NO2, -NCO, -NCS, -OCN, -SCN, -C(O)N(R S0 )2, -C(O)R S0 , a straight or branched chain alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms; [ka] one or two or more non-adjacent -CH2- groups in the linear or branched alkyl group containing 1 to 12 carbon atoms may be each independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-; [ka] One or more -H in may each be independently replaced with -F, S0 represents a linear or branched alkyl group containing 1 to 12 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12) carbon atoms; Ls 21 -Sp 3 -P 2 or [ka] represents Z 11 -O-, -S-, -CO-, -CO-O-, -O-CO-, -O-CO-O-, -CH2O-, -OCH2-, -CH2S-, -SCH2-, -CF2O-, -OCF2-, -CF2S-, -SCF2-, -(CH2) d -, -CF2CH2-, -CH2CF2-, -(CF2) d -, -CH=CH-, -CF=CF-, -CH=CF-, -CF=CH-, -C≡C-, -CH=CH-CO-O-, -O-CO-CH=CH-, -CH2CH2-CO-O-, -O-CO-CH2CH2-, -CHR 1 -, -CR 1 R 2 - or a single bond, R 1 and R 2 each independently represents a linear or branched alkyl group containing 1 to 12 carbon atoms; and d represents an integer of 1 to 4.

[0085] In some embodiments of the present invention, preferably, Ls1, Ls3 and Ls 31 are each independently -F, -Cl, -CN, -NO2, -NCO, -NCS, -OCN, -SCN, -C(O)N(R S0 )2, -C(O)R S0 , a linear or branched alkyl group containing 1 to 10 carbon atoms, a linear or branched alkoxy group containing 1 to 9 carbon atoms, or a linear or branched alkenyl group containing 2 to 10 carbon atoms, and more preferably Ls1, Ls3, and Ls4. 31each independently represents -F, -Cl, a linear or branched alkyl group containing 1 to 8 carbon atoms, a linear or branched alkoxy group containing 1 to 7 carbon atoms, or a linear or branched alkenyl group containing 2 to 8 carbon atoms.

[0086] In some embodiments of the present invention, preferably, R S1 -Sp 1 -P 1 , a linear or branched alkyl group containing 1 to 10 carbon atoms, a linear or branched alkoxy group containing 1 to 9 carbon atoms, or a linear or branched alkenyl group containing 2 to 10 carbon atoms, and more preferably R S1 represents a linear or branched alkyl group containing 1 to 8 carbon atoms, a linear or branched alkoxy group containing 1 to 7 carbon atoms, or a linear or branched alkenyl group containing 2 to 8 carbon atoms.

[0087] In some embodiments of the present invention, R S2 and R S3 are each independently -OH, -SH, -NH2, -NHR 11 , -N(R 11 )2, -NHC(O)R 11 , -OR 11 , -C(O)OH, [ka] Represents.

[0088] In some embodiments of the present invention, R S2 and R S3 are each independently [ka] is selected from the group consisting of the groups During the ceremony, * denotes the binding site in the bound structure.

[0089] In some embodiments of the present invention, RS2 and R S3 are each independently [ka] is selected from the group consisting of the groups:

[0090] Furthermore, R S2 and R S3 are each independently preferably [ka] It is.

[0091] In some embodiments of the present invention, p s1 represents 1 or 2.

[0092] In some embodiments of the present invention, the weight percentage of the self-aligning agent of general formula SA in the second liquid crystal composition is 0.001% to 5% (including any numerical value or subrange therein), for example, 0.001%, 0.005%, 0.05%, 0.1%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5%, 0.55%, 0.6%, 0.65%, 0.7%, 0.75%, 0.8%, 0.85%, 0.9%, 0.95%, 1.0%, 2%, 3%, 4%, 5%, or a range between any two numerical values ​​therein, and preferably the weight percentage of the self-aligning agent of general formula SA in the second liquid crystal composition is 0.1% to 2%.

[0093] In the present invention, when the self-aligning agent of general formula SA is added to the second liquid crystal composition, the second liquid crystal composition of the present invention can align liquid crystal molecules without providing a PI alignment layer.

[0094] In some embodiments of the present invention, the first liquid crystal composition comprises at least one compound of general formula M.

[0095] In some embodiments of the present invention, the weight percentage of the compound of general formula M in the first liquid crystal composition is 0.1% to 90% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58%, 60%, 62%, 64%, 66%, 68%, 70%, 72%, 74%, 76%, 78%, 80%, or a range between any two numerical values ​​therein.

[0096] In some embodiments of the present invention, the first liquid crystal composition further comprises at least one compound of general formula A-1 and / or general formula A-2.

[0097] In some embodiments of the present invention, the weight percentage of at least one compound of general formula A-1 and / or general formula A-2 in the first liquid crystal composition is 0.1% to 60% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58%, 60%, or a range between any two numerical values ​​therein.

[0098] In some embodiments of the present invention, the weight percentage of the compound of general formula A-1 in the first liquid crystal composition is 0.1% to 50% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, or a range between any two numerical values ​​therein.

[0099] In some embodiments of the present invention, the weight percentage of the compound of general formula A-2 in the first liquid crystal composition is 0.1% to 50% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, or a range between any two numerical values ​​therein.

[0100] In some embodiments of the present invention, the first liquid crystal composition further comprises at least one compound of general formula N.

[0101] In some embodiments of the present invention, the weight percentage of the compound of general formula N in the first liquid crystal composition is 0.1% to 60% (including any numerical value or subrange therein), for example, 0.1%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, 32%, 34%, 35%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58%, 60%, or a range between any two numerical values ​​therein.

[0102] In some embodiments of the present invention, the first liquid crystal composition further comprises at least one compound of general formula F.

[0103] In some embodiments of the present invention, the weight percentage of the compound of general formula F in the first liquid crystal composition is 0.1% to 30% (including any numerical value or subrange therein), for example, 0.1%, 0.5%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 20%, 22%, 24%, 25%, 26%, 28%, 30%, or a range between any two numerical values ​​therein.

[0104] In some embodiments of the present invention, the first liquid crystal composition further comprises at least one polymerizable compound of the general formula RM.

[0105] In some embodiments of the present invention, the weight percentage of the polymerizable compound of general formula RM in the first liquid crystal composition is 0.001% to 5% (including any numerical value or subrange therein), for example, 0.001%, 0.002%, 0.004%, 0.005%, 0.006%, 0.008%, 0.01%, 0.02%, 0.04%, 0.06%, 0.08%, 0.1%, 0.2%, 0.25%, 0.26%, 0.27%, 0.28%, 0.29%, 0.3%, 0.32%, 0.33%, 0.34%, 0.35%, 0.4%, 0.5%, 0.6%, 0.8%, 1%, 1.2%, 1.6%, 1.8%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, or a range between any two of those numbers.

[0106] In some embodiments of the present invention, the first liquid crystal composition further comprises at least one self-aligning agent of general formula SA.

[0107] In some embodiments of the present invention, the weight percentage of the self-aligning agent of general formula SA in the first liquid crystal composition is 0.001% to 5% (including any numerical value or subrange therein), for example, 0.001%, 0.005%, 0.05%, 0.1%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5%, 0.55%, 0.6%, 0.65%, 0.7%, 0.75%, 0.8%, 0.85%, 0.9%, 0.95%, 1.0%, 2%, 3%, 4%, 5%, or a range between any two numerical values ​​therein.

[0108] In another aspect, the present invention provides an application in the field of one-sided anti-peeping of a one-sided anti-peeping liquid crystal display device.

[0109] The second liquid crystal composition of the present invention may contain, in addition to the above-mentioned compounds, a general nematic liquid crystal, a smectic liquid crystal, a cholesteric liquid crystal, an antioxidant, an ultraviolet absorber, an infrared absorber, a photoinitiator, a polymerizable monomer, or a light stabilizer.

[0110] The dopants that may be preferably added to the second liquid crystal composition according to the present invention are as follows: [ka] It is.

[0111] In some embodiments of the present invention, the weight percentage of the dopant in the second liquid crystal composition is 0% to 5%, and preferably the weight percentage of the dopant in the second liquid crystal composition is 0.01% to 1%.

[0112] Moreover, additives such as antioxidants and light stabilizers used in the second liquid crystal composition of the present invention are preferably the following substances. [ka] [ka] [ka] In the formula, n represents a positive integer of 1 to 12.

[0113] Preferably, the antioxidant is selected from the light stabilizers listed below. [ka]

[0114] In some embodiments of the present invention, the total weight percentage of the additive in the second liquid crystal composition is 0% to 5%, and preferably the total weight percentage of the additive in the second liquid crystal composition is 0.01% to 1%.

[0115] In some embodiments of the present invention, the second liquid crystal composition of the present invention comprises at least one photoinitiator as set forth below. [ka] Effect of the Invention

[0116] Compared with the prior art, the one-sided anti-peep liquid crystal display device of the present invention has a high anti-peep effect in one-sided viewing angle anti-peep mode, an excellent wide viewing angle on the opposite side, and a high viewing angle display effect in the wide viewing angle mode. [Brief description of the drawings]

[0117] [Figure 1] FIG. 1 is a schematic diagram of a one-sided anti-peek liquid crystal display device. [Diagram 2] FIG. 1 is a schematic diagram of a dye-doped liquid crystal panel (IPS mode). [Diagram 3] FIG. 1 is a schematic diagram of one-sided anti-spying at horizontal viewing angles. [Figure 4] FIG. 13 is a schematic diagram of one-sided anti-spying at vertical viewing angle. [Diagram 5] FIG. 1 is a schematic diagram of a dye-doped liquid crystal panel (FFS mode). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0118] The present invention will be described below with reference to specific embodiments. Note that the following examples are illustrative of the present invention and are only intended to explain the present invention, and are not intended to limit the present invention. Other combinations and various improvements within the concept of the present invention can be made without departing from the spirit or scope of the present invention.

[0119] For ease of explanation, in each of the following examples, the radical structures of each compound are represented by the codes shown in Table 1.

[0120] [Table 1]

[0121] Take the compound of the following structural formula as an example: [ka] When the structural formula is represented by the code shown in Table 1, it can be represented as nCCGF, where n in the code represents the number of C atoms in the alkyl group at the left end. For example, when n is "3", it represents that the alkyl group is -C3H7, C in the code represents a 1,4-cyclohexylene group, G represents a 2-fluoro-1,4-phenylene group, and F represents fluorine.

[0122] The abbreviations for the measurement items in the following examples are as follows. Cp Clearing point (nematic-isotropic phase transition temperature, °C) Δn Optical anisotropy (589nm, 25℃) n o Ordinary Refractive Index n e Extraordinary Refractive Index Δε Dielectric constant anisotropy (1KHz, 25℃) ε ⊥ Permittivity perpendicular to the molecular axis ε ll Dielectric constant parallel to the molecular axis T c Low-temperature storage phase transition point (i.e., nematic phase minimum temperature, °C) K 11 Splay Elastic Constant (25℃) K 22 Elastic constant of twist (25℃) K 33 Elastic constant of bend (25℃) γ1 rotational viscosity (mPa s, 25℃) η Volumetric viscosity (mm2·s-1, 25℃) τ on Time required for transmittance to increase from 90% to 10% when current is applied (ms, 25℃) VHR (initial) Initial voltage retention rate (25℃, %) VHR(Ra) Voltage retention rate after 1 hour at 150℃ (25℃, %) VHR(UV) Voltage retention rate after ultraviolet light (UV) irradiation (25℃, %) During the ceremony, Cp: ​​Obtained by measurement using a melting point measuring apparatus. Δn:Δn=n e -n0, measured at 25°C using an Abbe refractometer under a sodium lamp (589 nm) light source. Δε:Δε=ε ll -ε ⊥ and ε ll is the dielectric constant parallel to the molecular axis, and ε ⊥ is the dielectric constant in the direction perpendicular to the molecular axis, and the measurement conditions are 25°C, 1KHz, and a VA-type measurement cell with a cell thickness of 6μm. T c Nematic phase liquid crystal material is placed in a glass bottle and stored in a refrigerator at temperatures of 0°C, -10°C, -20°C, -30°C, and -40°C, respectively. The low-temperature conditions are observed on the 10th day. For example, if the sample exhibits a nematic phase at -20°C and a crystalline or smectic state at -30°C, then T c is <-20℃. K 11 , K 22 , K 33 is obtained by measuring the CV curve of the liquid crystal using an LCR meter and an anti-parallel rubbing cell, and then calculating it. Measurement conditions: 7μm anti-parallel rubbing cell, V=0.1~20V. γ1: Obtained by measurement using an LCM-2 type liquid crystal property evaluation system, measurement conditions: 25°C, 160 to 240 V, measurement cell with a thickness of 20 μm. η: measured using a Brookfield cone-plate viscometer, and the measurement temperature was 25°C. τ on : Obtained by measurement using a DMS 505 liquid crystal display optical measurement system, measurement conditions: 25°C, TN type measurement cell with a cell thickness of 7.0 μm. VHR (initial): Initial voltage holding ratio, measured using a TOY06254 type liquid crystal physical property evaluation system, the measurement temperature is 65° C., the measurement voltage is 5 V, and the measurement frequency is 6 Hz. VHR(UV) was measured using a TOY06254 liquid crystal property evaluation system, with a wavelength of 365 nm and an energy of 6000 mJ / cm 2 The liquid crystal is irradiated with UV light and then measured, the measurement temperature is 60° C., the measurement voltage is 5 V, the measurement frequency is 6 Hz, and a TN type measurement cell having a thickness of 9 μm is used. VHR(Ra): Obtained by measurement using a TOY06254 type liquid crystal physical property evaluation system, and measured after holding the liquid crystal at a high temperature of 150°C for 1 hour, the measurement temperature is 60°C, the measurement voltage is 5V, the measurement frequency is 6Hz, and a TN type measurement cell with a thickness of 9μm is used.

[0123] The components used in the following examples can be synthesized by known methods or obtained commercially. These synthesis techniques are common and the resulting liquid crystal compounds have been measured to meet the standards of electronic compounds.

[0124] The second liquid crystal composition is prepared according to the blending ratio of each liquid crystal compound specified in the following examples. The second liquid crystal composition is prepared by a method commonly used in this field, for example, by mixing according to the ratio using methods such as heating, ultrasonication, suspension, etc.

[0125] [Example 1] FIG. 1 shows a schematic diagram of a one-sided anti-peep type liquid crystal display device according to this embodiment, which includes a backlight panel 1, a lower polarizer 2, a display panel 3, an upper polarizer 4, and a dye-doped liquid crystal panel 5, in which the orientation of the lower polarizer 2 is 0° and the orientation of the upper polarizer 4 is 90°.

[0126] FIG. 2 shows a schematic diagram of the dye-doped liquid crystal panel of this embodiment. The dye-doped liquid crystal panel includes a first substrate 5-1, a first conductive layer (IPS display mode) composed of a first electrode 5-3 and a second electrode 5-4, a first alignment layer 5-2, a dye-doped liquid crystal layer composed of dye molecules 5-7 and a second liquid crystal composition 5-8, a second alignment layer 5-5, and a second substrate 5-6. The first alignment layer and the second alignment layer are subjected to an anti-parallel rubbing treatment, the rubbing direction is 0°, and the thickness of the dye-doped liquid crystal layer is 4 μm.

[0127] In the wide viewing angle mode (Share), voltage is applied only to the display panel to display normally, the long axis of the dye-doped liquid crystal in the dye-doped liquid crystal panel is 0°, the light emitted from the display panel is perpendicular to the long axis direction of the dye-doped liquid crystal molecules, and the light emitted from the display panel can be transmitted normally. At this time, normal display is achieved at all viewing angles, which is the Share mode.

[0128] In the one-sided viewing angle anti-peeping mode (Privacy), when a voltage is applied to the display panel and the dye-doped liquid crystal panel at the same time, the dye-doped liquid crystal of the dye-doped liquid crystal panel rotates horizontally due to the voltage drive, and the light emitted from the display panel and the long axis of the dye-doped liquid crystal molecules form a vector angle such as the α angle in Figure 3, the light perpendicular to the long axis of the dye-doped liquid crystal molecules passes through normally, and the light parallel to the long axis of the liquid crystal molecules is absorbed, resulting in a poor display at viewing angle A and a normal display at viewing angle B, which is to say, the anti-peeping mode at viewing angle A is realized.

[0129] [Example 2] FIG. 1 shows a schematic diagram of a one-sided anti-peep type liquid crystal display device according to this embodiment, which includes a backlight panel 1, a lower polarizer 2, a display panel 3, an upper polarizer 4, and a dye-doped liquid crystal panel 5, in which the orientation of the lower polarizer 2 is 0° and the orientation of the upper polarizer 4 is 90°.

[0130] FIG. 2 shows a schematic diagram of the dye-doped liquid crystal panel of this embodiment. The dye-doped liquid crystal panel includes a first substrate 5-1, a first conductive layer (IPS display mode) composed of a first electrode 5-3 and a second electrode 5-4, a first alignment layer 5-2, a dye-doped liquid crystal layer composed of dye molecules 5-7 and a second liquid crystal composition 5-8, a second alignment layer 5-5, and a second substrate 5-6. The first alignment layer and the second alignment layer are subjected to an anti-parallel rubbing treatment, the rubbing direction is 0°, and the thickness of the dye-doped liquid crystal layer is 6 μm.

[0131] In the wide viewing angle mode (Share), voltage is applied only to the display panel to display normally, the long axis of the dye-doped liquid crystal in the dye-doped liquid crystal panel is 0°, the light emitted from the display panel is perpendicular to the long axis direction of the dye-doped liquid crystal molecules, and the light emitted from the display panel can be transmitted normally. At this time, normal display is achieved at all viewing angles, which is the Share mode.

[0132] In the one-sided viewing angle anti-peeping mode (Privacy), when a voltage is applied to the display panel and the dye-doped liquid crystal panel at the same time, the dye-doped liquid crystal of the dye-doped liquid crystal panel rotates horizontally due to the voltage drive, and the light emitted from the display panel and the long axis of the dye-doped liquid crystal molecules form a vector angle such as the α angle in Figure 3, the light perpendicular to the long axis of the dye-doped liquid crystal molecules passes through normally, and the light parallel to the long axis of the liquid crystal molecules is absorbed, resulting in a poor display at viewing angle A and a normal display at viewing angle B, which is to say, the anti-peeping mode at viewing angle A is realized.

[0133] [Example 3] FIG. 1 shows a schematic diagram of a one-sided anti-peep type liquid crystal display device according to this embodiment, which includes a backlight panel 1, a lower polarizer 2, a display panel 3, an upper polarizer 4, and a dye-doped liquid crystal panel 5, in which the orientation of the lower polarizer 2 is 0° and the orientation of the upper polarizer 4 is 90°.

[0134] FIG. 2 shows a schematic diagram of the dye-doped liquid crystal panel of this embodiment. The dye-doped liquid crystal panel includes a first substrate 5-1, a first conductive layer (IPS display mode) composed of a first electrode 5-3 and a second electrode 5-4, a first alignment layer 5-2, a dye-doped liquid crystal layer composed of dye molecules 5-7 and a second liquid crystal composition 5-8, a second alignment layer 5-5, and a second substrate 5-6. The first alignment layer and the second alignment layer are subjected to an anti-parallel rubbing treatment, the rubbing direction is 0°, and the thickness of the dye-doped liquid crystal layer is 8 μm.

[0135] In the wide viewing angle mode (Share), voltage is applied only to the display panel to display normally, the long axis of the dye-doped liquid crystal in the dye-doped liquid crystal panel is 0°, the light emitted from the display panel is perpendicular to the long axis direction of the dye-doped liquid crystal molecules, and the light emitted from the display panel can be transmitted normally. At this time, normal display is achieved at all viewing angles, which is the Share mode.

[0136] In the one-sided viewing angle anti-peeping mode (Privacy), when a voltage is applied to the display panel and the dye-doped liquid crystal panel at the same time, the dye-doped liquid crystal of the dye-doped liquid crystal panel rotates horizontally due to the voltage drive, and the light emitted from the display panel and the long axis of the dye-doped liquid crystal molecules form a vector angle such as the α angle in Figure 3, the light perpendicular to the long axis of the dye-doped liquid crystal molecules passes through normally, and the light parallel to the long axis of the liquid crystal molecules is absorbed, resulting in a poor display at viewing angle A and a normal display at viewing angle B, which is to say, the anti-peeping mode at viewing angle A is realized.

[0137] [Example 4] FIG. 1 shows a schematic diagram of a one-sided anti-peep type liquid crystal display device according to this embodiment, which includes a backlight panel 1, a lower polarizer 2, a display panel 3, an upper polarizer 4, and a dye-doped liquid crystal panel 5, in which the orientation of the lower polarizer 2 is 0° and the orientation of the upper polarizer 4 is 90°.

[0138] FIG. 2 shows a schematic diagram of the dye-doped liquid crystal panel of this embodiment. The dye-doped liquid crystal panel includes a first substrate 5-1, a first conductive layer (IPS display mode) composed of a first electrode 5-3 and a second electrode 5-4, a first alignment layer 5-2, a dye-doped liquid crystal layer composed of dye molecules 5-7 and a second liquid crystal composition 5-8, a second alignment layer 5-5, and a second substrate 5-6. The first alignment layer and the second alignment layer are subjected to an anti-parallel rubbing treatment, the rubbing direction is 0°, and the thickness of the dye-doped liquid crystal layer is 10 μm.

[0139] In the wide viewing angle mode (Share), voltage is applied only to the display panel to display normally, the long axis of the dye-doped liquid crystal in the dye-doped liquid crystal panel is 0°, the light emitted from the display panel is perpendicular to the long axis direction of the dye-doped liquid crystal molecules, and the light emitted from the display panel can be transmitted normally. At this time, normal display is achieved at all viewing angles, which is the Share mode.

[0140] In the one-sided viewing angle anti-peeping mode (Privacy), when a voltage is applied to the display panel and the dye-doped liquid crystal panel at the same time, the dye-doped liquid crystal of the dye-doped liquid crystal panel rotates horizontally due to the voltage drive, and the light emitted from the display panel and the long axis of the dye-doped liquid crystal molecules form a vector angle such as the α angle in Figure 3, the light perpendicular to the long axis of the dye-doped liquid crystal molecules passes through normally, and the light parallel to the long axis of the liquid crystal molecules is absorbed, resulting in a poor display at viewing angle A and a normal display at viewing angle B, which is to say, the anti-peeping mode at viewing angle A is realized.

[0141] [Example 5] FIG. 1 shows a schematic diagram of a one-sided anti-peep type liquid crystal display device according to this embodiment, which includes a backlight panel 1, a lower polarizer 2, a display panel 3, an upper polarizer 4, and a dye-doped liquid crystal panel 5, in which the orientation of the lower polarizer 2 is 90° and the orientation of the upper polarizer 4 is 0°.

[0142] FIG. 2 shows a schematic diagram of the dye-doped liquid crystal panel of this embodiment. The dye-doped liquid crystal panel includes a first substrate 5-1, a first conductive layer (IPS display mode) consisting of a first electrode 5-3 and a second electrode 5-4, a first alignment layer 5-2, a dye-doped liquid crystal layer consisting of dye molecules 5-7 and a second liquid crystal composition 5-8, a second alignment layer 5-5, and a second substrate 5-6. The first alignment layer and the second alignment layer are subjected to an anti-parallel rubbing treatment, the rubbing direction is 90°, and the thickness of the dye-doped liquid crystal layer is 4 μm.

[0143] In the wide viewing angle mode (Share), voltage is applied only to the display panel to display normally, and the long axis of the dye-doped liquid crystal in the dye-doped liquid crystal panel is 90°, and the light emitted from the display panel is perpendicular to the long axis direction of the dye-doped liquid crystal molecules, so that the light emitted from the display panel can be transmitted normally. At this time, normal display is achieved at all viewing angles, which is the Share mode.

[0144] In the one-sided viewing angle anti-peeping mode (Privacy), when a voltage is applied to the display panel and the dye-doped liquid crystal panel at the same time, the dye-doped liquid crystal of the dye-doped liquid crystal panel rotates horizontally due to the voltage drive, and the light emitted from the display panel and the long axis of the dye-doped liquid crystal molecule form a vector angle such as the β angle in Figure 4, the light perpendicular to the long axis of the dye-doped liquid crystal molecule passes through normally, and the light parallel to the long axis of the liquid crystal molecule is absorbed, resulting in a poor display at viewing angle D, which is expressed as a normal display at viewing angle C, that is, the anti-peeping mode at viewing angle D is realized.

[0145] [Example 6] FIG. 1 shows a schematic diagram of a one-sided anti-peep type liquid crystal display device according to this embodiment, which includes a backlight panel 1, a lower polarizer 2, a display panel 3, an upper polarizer 4, and a dye-doped liquid crystal panel 5, in which the orientation of the lower polarizer 2 is 0° and the orientation of the upper polarizer 4 is 90°.

[0146] FIG. 5 shows a schematic diagram of the dye-doped liquid crystal panel of this embodiment. The dye-doped liquid crystal panel includes a first substrate 5-1, a first conductive layer (FFS display mode) consisting of a first electrode 5-3, a second electrode 5-4 and an insulating layer 5-9, a first alignment layer 5-2, a dye-doped liquid crystal layer consisting of dye molecules 5-7 and a second liquid crystal composition 5-8, a second alignment layer 5-5 and a second substrate 5-6. The first alignment layer and the second alignment layer are subjected to anti-parallel rubbing treatment, the rubbing direction is 0°, and the thickness of the dye-doped liquid crystal layer is 4 μm.

[0147] In the wide viewing angle mode (Share), voltage is applied only to the display panel to display normally, the long axis of the dye-doped liquid crystal in the dye-doped liquid crystal panel is 0°, the light emitted from the display panel is perpendicular to the long axis direction of the dye-doped liquid crystal molecules, and the light emitted from the display panel can be transmitted normally. At this time, normal display is achieved at all viewing angles, which is the Share mode.

[0148] In the one-sided viewing angle anti-peeping mode (Privacy), when a voltage is applied to the display panel and the dye-doped liquid crystal panel at the same time, the dye-doped liquid crystal of the dye-doped liquid crystal panel rotates horizontally due to the voltage drive, and the light emitted from the display panel and the long axis of the dye-doped liquid crystal molecules form a vector angle such as the α angle in Figure 3, the light perpendicular to the long axis of the dye-doped liquid crystal molecules passes through normally, and the light parallel to the long axis of the liquid crystal molecules is absorbed, resulting in a poor display at viewing angle A and a normal display at viewing angle B, which is to say, the anti-peeping mode at viewing angle A is realized.

[0149] [Example 7] FIG. 1 shows a schematic diagram of a one-sided anti-peep type liquid crystal display device according to this embodiment, which includes a backlight panel 1, a lower polarizer 2, a display panel 3, an upper polarizer 4, and a dye-doped liquid crystal panel 5, in which the orientation of the lower polarizer 2 is 90° and the orientation of the upper polarizer 4 is 0°.

[0150] FIG. 5 shows a schematic diagram of the dye-doped liquid crystal panel of this embodiment. The dye-doped liquid crystal panel includes a first substrate 5-1, a first conductive layer (FFS display mode) consisting of a first electrode 5-3, a second electrode 5-4 and an insulating layer 5-9, a first alignment layer 5-2, a dye-doped liquid crystal layer consisting of dye molecules 5-7 and a second liquid crystal composition 5-8, a second alignment layer 5-5 and a second substrate 5-6. The first alignment layer and the second alignment layer are subjected to anti-parallel rubbing treatment, the rubbing direction is 90°, and the thickness of the dye-doped liquid crystal layer is 6 μm.

[0151] In the wide viewing angle mode (Share), voltage is applied only to the display panel to display normally, and the long axis of the dye-doped liquid crystal in the dye-doped liquid crystal panel is 90°, and the light emitted from the display panel is perpendicular to the long axis direction of the dye-doped liquid crystal molecules, so that the light emitted from the display panel can be transmitted normally. At this time, normal display is achieved at all viewing angles, which is the Share mode.

[0152] In the one-sided viewing angle anti-peeping mode (Privacy), when a voltage is applied to the display panel and the dye-doped liquid crystal panel at the same time, the dye-doped liquid crystal of the dye-doped liquid crystal panel rotates horizontally due to the voltage drive, and the light emitted from the display panel and the long axis of the dye-doped liquid crystal molecule form a vector angle such as the β angle in Figure 4, the light perpendicular to the long axis of the dye-doped liquid crystal molecule passes through normally, and the light parallel to the long axis of the liquid crystal molecule is absorbed, resulting in a poor display at viewing angle D, which is expressed as a normal display at viewing angle C, that is, the anti-peeping mode at viewing angle D is realized.

[0153] [Example 8] FIG. 1 shows a schematic diagram of a one-sided anti-peep type liquid crystal display device according to this embodiment, which includes a backlight panel 1, a lower polarizer 2, a display panel 3, an upper polarizer 4, and a dye-doped liquid crystal panel 5, in which the orientation of the lower polarizer 2 is 90° and the orientation of the upper polarizer 4 is 0°.

[0154] FIG. 5 shows a schematic diagram of the dye-doped liquid crystal panel of this embodiment. The dye-doped liquid crystal panel includes a first substrate 5-1, a first conductive layer (FFS display mode) consisting of a first electrode 5-3, a second electrode 5-4 and an insulating layer 5-9, a first alignment layer 5-2, a dye-doped liquid crystal layer consisting of dye molecules 5-7 and a second liquid crystal composition 5-8, a second alignment layer 5-5 and a second substrate 5-6. The first alignment layer and the second alignment layer are subjected to anti-parallel rubbing treatment, the rubbing direction is 90°, and the thickness of the dye-doped liquid crystal layer is 4 μm.

[0155] In the wide viewing angle mode (Share), voltage is applied only to the display panel to display normally, and the long axis of the dye-doped liquid crystal in the dye-doped liquid crystal panel is 90°, and the light emitted from the display panel is perpendicular to the long axis direction of the dye-doped liquid crystal molecules, so that the light emitted from the display panel can be transmitted normally. At this time, normal display is achieved at all viewing angles, which is the Share mode.

[0156] In the one-sided viewing angle anti-peeping mode (Privacy), when a voltage is applied to the display panel and the dye-doped liquid crystal panel at the same time, the dye-doped liquid crystal of the dye-doped liquid crystal panel rotates horizontally due to the voltage drive, and the light emitted from the display panel and the long axis of the dye-doped liquid crystal molecule form a vector angle such as the β angle in Figure 4, the light perpendicular to the long axis of the dye-doped liquid crystal molecule passes through normally, and the light parallel to the long axis of the liquid crystal molecule is absorbed, resulting in a poor display at viewing angle D, which is expressed as a normal display at viewing angle C, that is, the anti-peeping mode at viewing angle D is realized.

[0157] Hereinafter, the display effect of the one-sided anti-peep type liquid crystal display device of the present application in the wide viewing angle mode and the one-sided anti-peep type liquid crystal display device of the present application in ...

[0158] [Application example 1] A second liquid crystal composition 1 is prepared according to each compound and their weight percentage shown in Table 2, and a dye having a weight percentage of 4% relative to the second liquid crystal composition is added to the second liquid crystal composition 1, which is then filled into the dye-doped liquid crystal panel of Example 1 of the present application and its performance is measured.

[0159] [Table 2]

[0160] The luminance values ​​at different angles in the wide viewing angle mode and one-sided viewing angle anti-spy mode are simulated using LCD master, and are shown in Table 3 and Table 4.

[0161] [Table 3]

[0162] [Table 4]

[0163] [Table 5]

[0164] Here, phi represents the angle in the azimuth plane (horizontal plane), theta represents the angle in the pitch plane (vertical plane), and the luminance value at a horizontal viewing angle of theta=-10° to -80° corresponds to the luminance value when phi=180°, and the luminance value at a horizontal viewing angle of theta=10° to 80° corresponds to the luminance value when phi=0°.

[0165] Based on the simulation measurement conditions of this application example, when the Privacy / Share ratio is ≦45%, the display at that viewing angle is poor and the technical effect of preventing peeping is achieved; furthermore, when the Privacy / Share ratio is ≦40%, a higher anti-peeping effect can be achieved.

[0166] As can be seen from the data in Tables 3, 4, and 5, the second liquid crystal composition filled in the display device of the present invention has a high clearing point, large optical anisotropy (Δn, n e , n0), large dielectric anisotropy (Δε, ε ll , ε ⊥ ), large elastic constant (K 11 , K 22 , K 33 ), small rotational viscosity, small volume viscosity, excellent low-temperature storage phase transition point, and excellent voltage retention stability (VHR(initial), VHR(UV), VHR(Ra)), the present application can meet the demand for wide viewing angle display within the angle range of theta=-80° to 80° in wide viewing angle mode. In one-sided viewing angle anti-peeping mode, the present application has a Privacy / Share ratio of ≦45% within the angle range of theta=-50° to -30°, and can realize narrow viewing angle display and normal display at other viewing angles, that is, can realize one-sided anti-peeping within the angle range of theta=-50° to -30°.

[0167] [Application example 2] A second liquid crystal composition 2 is prepared according to each compound and their weight percentage shown in Table 6, and a dye having a weight percentage of 2% relative to the second liquid crystal composition is added to the second liquid crystal composition 2, which is then filled into the dye-doped liquid crystal panel of Example 1 of the present application and its performance is measured.

[0168] [Table 6]

[0169] Using LCD master, the luminance values ​​of the viewing angle at the horizontal angle in the wide viewing angle mode and the one-sided viewing angle anti-peep mode were simulated, and the relative value for theta=0° in the wide viewing angle mode was measured as shown in Table 7 (for example, the calculation method for the relative value of theta=80° to theta=0° is (luminance value of theta=80°) / (luminance value of theta=0°)), and the relative value for theta=40° in the one-sided viewing angle anti-peep mode was measured and calculated (for example, the calculation method for the relative value of theta=80° to theta=40° is (luminance value of theta=80°) / (luminance value of theta=40°)). The results are shown in Table 8, and the ratio (Privacy / Share) of the luminance value in the horizontal viewing angle anti-peep mode to the luminance value in the share mode is shown in Table 12.

[0170] [Application example 3] A second liquid crystal composition 3 is prepared according to each compound and their weight percentage shown in Table 9, and a dye having a weight percentage of 3.5% relative to the second liquid crystal composition is added to the second liquid crystal composition 3, which is then filled into the dye-doped liquid crystal panel of Example 1 of the present application and its performance is measured.

[0171] [Table 7]

[0172] Using the LCD master, the luminance values ​​of the viewing angle at the horizontal angle in the wide viewing angle mode and the one-sided viewing angle anti-peep mode were simulated, and the relative value for theta=0° in the wide viewing angle mode was measured and calculated as shown in Table 7 (for example, the calculation method for the relative value of theta=80° to theta=0° is (luminance value of theta=80°) / (luminance value of theta=0°)), and the relative value for theta=40° in the one-sided viewing angle anti-peep mode was measured and calculated (for example, the calculation method for the relative value of theta=80° to theta=40° is (luminance value of theta=80°) / (luminance value of theta=40°)). The results are shown in Table 8, and the ratio (Privacy / Share) of the luminance value in the horizontal viewing angle anti-peep mode to the luminance value in the share mode is shown in Table 12.

[0173] [Application example 4] A second liquid crystal composition 4 is prepared according to each compound and their weight percentage shown in Table 10, and a dye having a weight percentage of 2% relative to the second liquid crystal composition is added to the second liquid crystal composition 4, which is then filled into the dye-doped liquid crystal panel of Example 1 of the present application to measure its performance.

[0174] [Table 8]

[0175] Using the LCD master, the luminance values ​​of the viewing angle at the horizontal angle in the wide viewing angle mode and the one-sided viewing angle anti-peep mode were simulated, and the relative value for theta=0° in the wide viewing angle mode was measured and calculated as shown in Table 7 (for example, the calculation method for the relative value of theta=80° to theta=0° is (luminance value of theta=80°) / (luminance value of theta=0°)), and the relative value for theta=40° in the one-sided viewing angle anti-peep mode was measured and calculated (for example, the calculation method for the relative value of theta=80° to theta=40° is (luminance value of theta=80°) / (luminance value of theta=40°)). The results are shown in Table 8, and the ratio (Privacy / Share) of the luminance value in the horizontal viewing angle anti-peep mode to the luminance value in the share mode is shown in Table 12.

[0176] [Application example 5] A second liquid crystal composition 5 is prepared according to each compound and their weight percentage shown in Table 11, and a dye having a weight percentage of 3% relative to the second liquid crystal composition is added to the second liquid crystal composition 5, which is then filled into the dye-doped liquid crystal panel of Example 1 of the present application and its performance is measured.

[0177] [Table 9]

[0178] Using the LCD master, the luminance values ​​of the viewing angle at the horizontal angle in the wide viewing angle mode and the one-sided viewing angle anti-peep mode were simulated, and the relative value for theta=0° in the wide viewing angle mode was measured and calculated as shown in Table 7 (for example, the calculation method for the relative value of theta=80° to theta=0° is (luminance value of theta=80°) / (luminance value of theta=0°)), and the relative value for theta=40° in the one-sided viewing angle anti-peep mode was measured and calculated (for example, the calculation method for the relative value of theta=80° to theta=40° is (luminance value of theta=80°) / (luminance value of theta=40°)). The results are shown in Table 8, and the ratio (Privacy / Share) of the luminance value in the horizontal viewing angle anti-peep mode to the luminance value in the share mode is shown in Table 12.

[0179] [Table 10]

[0180] [Table 11]

[0181] [Table 12]

[0182] As can be seen from the data in Tables 7, 8, and 12, the second liquid crystal composition filled in the display device of the present invention has a high clearing point, large optical anisotropy (Δn, n e , n0), large dielectric anisotropy (Δε, ε ll , ε ⊥ ), large elastic constant (K 11 , K 22 , K 33), small rotational viscosity, small volume viscosity, excellent low-temperature storage phase transition point, and excellent voltage retention stability (VHR(initial), VHR(UV), VHR(Ra)), in the wide viewing angle mode, the luminance values ​​at theta=-80° to -10° and theta=10° to 80° have large relative values ​​to the luminance value at theta=0° (the change in the luminance values ​​at theta=-80° to -10° and theta=10° to 80° relative to the luminance value at theta=0° is small), i.e., within the angle range of theta=-80° to 80°, all have good display effects, i.e., can meet the display demands of a wide viewing angle. In the one-sided viewing angle anti-peeping mode, the luminance values ​​at theta=-80° to 30° and theta=50° to 80° have small relative values ​​to the luminance value at theta=40° (the change in the luminance values ​​at theta=-80° to 30° and theta=50° to 80° is large relative to the luminance value at theta=40°), and within the angle range of theta=-50° to -30°, the Privacy / Share ratio is ≦45%, i.e., the present application can realize narrow viewing angle display within the angle range of theta=-50° to -30°, and can achieve normal display with a high Privacy / Share ratio at other viewing angles, i.e., can realize one-sided anti-peeping within the angle range of theta=-50° to -30°.

[0183] As described above, the one-sided anti-peep liquid crystal display device of the present application has a high display effect in the wide viewing angle mode, has a wide viewing angle, and can achieve the technical effect of one-sided anti-peep in the one-sided viewing angle anti-peep mode.

[0184] The above embodiments are merely intended to explain the technical ideas and features of the present invention so that those skilled in the art can understand and practice the contents of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent modifications or modifications made based on the gist of the present invention should be included within the protection scope of the present invention. [Industrial Applicability]

[0185] The one-sided anti-sneak peek type liquid crystal display device according to the present invention can be applied to the field of liquid crystal. [Explanation of symbols]

[0186] 1 Backlight Panel 2 Lower polarizer 3 Display Panel 4 Upper polarizing plate 5 Dye-doped LCD panel 5-1 First board 5-2 First alignment layer 5-3 1st electrode 5-4 2nd electrode 5-5 Second alignment layer 5-6 Second board 5-7 Pigment molecules 5-8 Second liquid crystal composition 5-9 Insulating layer a horizontal plane b Incident light direction c Component of incident light perpendicular to the long axis of the dye-doped liquid crystal molecules d Dye-doped liquid crystal molecules e Horizontal viewing angle f Vertical viewing angle

Claims

1. Along the light output side, the display panel includes a backlight panel, a lower polarizing plate, a display panel, an upper polarizing plate, and a dye-doped liquid crystal panel, The display panel includes at least one substrate, at least one conductive layer, and a layer of a first liquid crystal composition; The dye-doped liquid crystal panel includes a first substrate, a first conductive layer, a dye-doped liquid crystal layer, and a second substrate; the dye-doped liquid crystal layer comprises a second liquid crystal composition and dye molecules; A one-sided anti-peek type liquid crystal display device.

2. 2. The liquid crystal display device according to claim 1, wherein the orientation of the upper polarizer and the orientation of the lower polarizer are each independently vertical or horizontal.

3. 2. The liquid crystal display device according to claim 1, wherein, in a conducting state, the display panel generates a transverse electric field.

4. 2. The liquid crystal display device according to claim 1, wherein, in an energized state, the dye-doped liquid crystal panel generates a transverse electric field.

5. 2. The liquid crystal display device of claim 1, wherein the dye-doped liquid crystal panel comprises the first substrate, the first conductive layer, a first alignment layer, the dye-doped liquid crystal layer, a second alignment layer, and the second substrate.

6. 6. The liquid crystal display device according to claim 5, wherein the dye-doped liquid crystal layer has a thickness of 1 to 12 μm.

7. The liquid crystal display device of claim 1, characterized in that when a voltage is applied only to the display panel, the liquid crystal display device is in a wide viewing angle mode, and when a voltage is applied simultaneously to the display panel and the dye-doped liquid crystal panel, the liquid crystal display device is in a one-sided viewing angle anti-peeping mode.

8. 2. The liquid crystal display device according to claim 1, wherein in the dye-doped liquid crystal panel, the dye molecules are dichroic dye molecules.

9. In the dye-doped liquid crystal panel, the second liquid crystal composition comprises at least one compound represented by general formula M, 【Chemistry 1】 During the ceremony, R Ｍ１ and R Ｍ２ are each independently a straight or branched chain alkyl group containing 1 to 12 carbon atoms; 【Chemistry 2】 wherein the linear or branched alkyl group containing 1 to 12 carbon atoms has one or more non-adjacent —CH ２ Each - may be independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-; 【Chemistry 3】 are each independently 【Chemistry 4】 represents 【Chemistry 5】 At least one -CH ２ - may be replaced by -O-, and one or more single bonds in the ring may be replaced by a double bond; 【Chemistry 6】 at most one -H in may be replaced by halogen; Z Ｍ１ and Z Ｍ２ each independently represents a single bond, —CO—O—, —O—CO—, or —CH ２ O-, -OCH ２ -, -C≡C-, -CH=CH-, -CH ２ CH ２ - or - (CH ２ ) ４ - represents n Ｍ represents 0, 1 or 2; n Ｍ If = 2, then 【Chemistry 7】 may be the same or different, Z Ｍ２ may be the same or different, 2. A liquid crystal display device according to claim 1.

10. In the dye-doped liquid crystal panel, the second liquid crystal composition further contains at least one compound represented by general formula A-1 and / or general formula A-2, 【Chemistry 8】 During the ceremony, R Ａ１ and R Ａ２ are each independently a straight or branched chain alkyl group containing 1 to 12 carbon atoms; 【Chemistry 9】 In the linear or branched alkyl group having 1 to 12 carbon atoms, one or more non-adjacent —CH ２ each - may be independently replaced by CH=CH-, -C≡C-, -O-, -CO-, -CO-O- or -O-CO-, and is a linear or branched alkyl group containing 1 to 12 carbon atoms; 【Chemistry 10】 one or more -H in each may be independently replaced by -F or -Cl; 【Chemistry 11】 are each independently 【Chemistry 12】 represents 【Chemistry 13】 At least one -CH ２ - may be replaced by -O-, and one or more single bonds in the ring may be replaced by a double bond; 【Chemistry 14】 one or more -H in the ring may be independently replaced by -F, -Cl or -CN, and one or more -CH= in the ring may be replaced by -N=; Z Ａ１１ , Z Ａ２１ and Z Ａ２２ each independently represents a single bond, -CH ２ CH ２ -, -CF ２ CF ２ -, -CO-O-, -O-CO-, -O-CO-O-, -CH=CH-, -CF=CF-, -CH ２ O- or -OCH ２ - represents L Ａ１１ , L Ａ１２ , L Ａ１３ , L Ａ２１ and L Ａ２２ each independently represents -H, an alkyl group containing 1 to 3 carbon atoms, or a halogen; X Ａ１ and X Ａ２ each independently represents a halogen, a halogenated alkyl group or a halogenated alkoxy group containing 1 to 5 carbon atoms, or a halogenated alkenyl group or a halogenated alkenyloxy group containing 2 to 5 carbon atoms; n Ａ１１ represents 0, 1, 2 or 3; n Ａ１１ = 2 or 3, 【Chemistry 15】 may be the same or different, Z Ａ１１ may be the same or different, n Ａ１２ represents 1 or 2, n Ａ１２ If = 2, then 【Chemistry 16】 may be the same or different, n Ａ２ represents 0, 1, 2 or 3; n Ａ２ = 2 or 3, 【Chemistry 17】 may be the same or different, Z Ａ２１ may be the same or different, 10. A liquid crystal display device according to claim 9.

11. 11. Application of the one-sided anti-peep type liquid crystal display device according to claim 1 in the field of one-sided anti-peep.

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