CN106932970A - A kind of liquid crystal lens and 3 d display device - Google Patents
A kind of liquid crystal lens and 3 d display device Download PDFInfo
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- CN106932970A CN106932970A CN201511025905.5A CN201511025905A CN106932970A CN 106932970 A CN106932970 A CN 106932970A CN 201511025905 A CN201511025905 A CN 201511025905A CN 106932970 A CN106932970 A CN 106932970A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 108
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 230000005684 electric field Effects 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 21
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000003644 lens cell Anatomy 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of liquid crystal lens and 3 d display device, the liquid crystal lens include：The first substrate and second substrate being oppositely arranged, and the liquid crystal layer between first substrate and second substrate；Wherein, first substrate is provided with the first electrode of multiple bar shapeds near the one side of liquid crystal layer, and projection of the first electrode on the pixel cell of display panel and one side of pixel cell are in first angle；Second substrate is provided with the second electrode of multiple bar shapeds near the one side of liquid crystal layer, and projection of the second electrode on the pixel cell of display panel and one side of pixel cell are in second angle.Upper and lower two-layer electrode of the invention applies different voltages to it to form different lens effects using multiple strip electrodes, so as to realize supporting stereo display effect in the case of horizontal and longitudinal, meets the stereoscopic display demand of user.
Description
Technical Field
The invention relates to the field of stereoscopic display, in particular to a liquid crystal lens and a stereoscopic display device.
Background
With the development of naked eye 3D technology, the liquid crystal lens technology is well developed, the liquid crystal lens is an optical component which utilizes the birefringence characteristic of liquid crystal molecules and the arrangement characteristic which changes along with the distribution of an electric field to focus or disperse light beams, the arrangement direction of the liquid crystal molecules can be changed by changing the driving voltage, the effect of adjusting the focal length is further realized, the effective optical zooming effect can be achieved in a small space, and great convenience is brought to the use of a user.
However, the current liquid crystal lens technology can only be used for 3D viewing in the horizontal screen direction, and people can also use the vertical screen mode to view pictures or videos in daily use, but cannot perform 3D viewing in the vertical screen direction, and cannot meet the 3D viewing requirements of users.
Disclosure of Invention
The invention provides a liquid crystal lens and a stereoscopic display device, and solves the problem that the liquid crystal lens technology in the prior art cannot support 3D display in two directions.
According to an aspect of the present invention, there is provided a liquid crystal lens including: the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is positioned between the first substrate and the second substrate; wherein,
one surface of the first substrate, which is close to the liquid crystal layer, is provided with a plurality of strip-shaped first electrodes, and the projection of the first electrodes on the pixel units of the display panel forms a first angle with one side of the pixel units;
one surface of the second substrate, which is close to the liquid crystal layer, is provided with a plurality of strip-shaped second electrodes, and the projection of the second electrodes on the pixel units of the display panel forms a second angle with one side of the pixel units.
Wherein the ratio of the width of the first electrode to the distance between the first electrode and its adjacent first electrode is 0.7 to 3.
The first electrodes are parallel to each other, and the second electrodes are parallel to each other.
When first voltages with different intensities are applied to the first electrodes positioned at different positions and second voltages with the same intensity are applied to the second electrodes, a voltage difference between the second voltages and the first voltages forms a first electric field between the first electrodes and the second electrodes, and a plurality of transverse lens units are formed in the arrangement direction of liquid crystal molecules of the liquid crystal layer; wherein the intensity of the first voltage is sequentially increased from the center of the transverse lens unit to the two ends of the transverse lens unit.
The voltage difference between the second voltage and the first voltage is increased from the center of the transverse lens unit to two ends of the transverse lens unit.
When a third voltage with the same intensity is applied to the first electrode and a fourth voltage with different intensities is applied to the second electrodes positioned at different positions, a voltage difference between the third voltage and the fourth voltage forms a second electric field between the first electrode and the second electrode, and a plurality of longitudinally-arranged lens units are formed in the liquid crystal molecule arrangement direction of the liquid crystal layer; wherein, the intensity of the fourth voltage is increased from the center of the longitudinal lens unit to the two ends of the transverse lens unit in sequence.
And the voltage difference between the third voltage and the fourth voltage is increased from the center of the longitudinal lens unit to two ends of the transverse lens unit in sequence.
When the fifth voltage with the same intensity is applied to the first electrode and the sixth voltage with the same intensity is applied to the second electrode, a voltage difference between the fifth voltage and the sixth voltage forms a third electric field, and the arrangement directions of liquid crystal molecules of the liquid crystal layer are consistent.
Wherein, liquid crystal lens still includes: and a fourth electric field is generated between the third electrode and the fourth electrode, and the arrangement directions of liquid crystal molecules of the liquid crystal layer are consistent.
The third electrode and the fourth electrode are both plate-shaped electrodes.
According to another aspect of the invention, there is also provided a stereoscopic display device comprising the liquid crystal lens as described above.
The embodiment of the invention has the beneficial effects that:
the upper layer electrode and the lower layer electrode of the liquid crystal lens adopt a multi-electrode structure, the upper layer electrode and the lower layer electrode are respectively controlled during 3D display, and when the screen is positioned on a transverse screen and a longitudinal screen, the applied voltages of the upper layer electrode and the lower layer electrode are different, so that different lens effects are formed, the stereoscopic display effect is supported under the conditions of transverse placement and longitudinal placement, and the stereoscopic display requirement of a user is met. In addition, the upper and lower layers of electrodes of the liquid crystal lens are inclined at a certain angle according to the arrangement of the pixel units so as to eliminate the influence of moire fringes and improve the stereoscopic display effect and the watching comfort level.
Drawings
FIG. 1 is a first schematic view of a liquid crystal lens according to the present invention;
FIG. 2 is a schematic diagram of the arrangement of the first electrode of the liquid crystal lens according to the present invention;
FIG. 3 is a schematic diagram of the arrangement of the second electrode of the liquid crystal lens according to the present invention;
FIG. 4 is a first schematic structural diagram of a liquid crystal lens according to the present invention in a 3D display;
FIG. 5 is a schematic structural diagram of a liquid crystal lens according to the present invention in a 3D display mode;
FIG. 6 is a schematic view of a liquid crystal lens according to the present invention in a 2D display mode;
fig. 7 shows a second schematic structural diagram of a liquid crystal lens according to the present invention.
Wherein in the figure: 1. the liquid crystal display device comprises a first substrate, a second substrate, a first electrode, a second electrode, a third electrode, a fourth electrode, a pixel unit, a first substrate, a second substrate, a liquid crystal layer, a pixel unit, a first electrode, a second electrode, a pixel unit, a pixel.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example one
As shown in fig. 1 to 3, an embodiment of the present invention provides a liquid crystal lens, including: the liquid crystal display device comprises a first substrate 1 and a second substrate 2 which are oppositely arranged, and a liquid crystal layer 3 positioned between the first substrate 1 and the second substrate 2, wherein the liquid crystal layer 3 is composed of a plurality of liquid crystal molecules. One surface of the first substrate 1, which is close to the liquid crystal layer 3, is provided with a plurality of strip-shaped first electrodes 5, and a projection of the first electrodes 5 on a pixel unit 4 of the display panel forms a first angle with one side of the pixel unit 4; one surface of the second substrate 2 close to the liquid crystal layer 3 is provided with a plurality of strip-shaped second electrodes 6, and a projection of the second electrodes 6 on the pixel units 4 of the display panel forms a second angle with one side of the pixel units 4. The arrangement direction of the pixel units 4 includes: a first alignment direction parallel to the first direction, and a second alignment direction perpendicular to the first direction. Specifically, the projection of the first electrode 5 on the pixel unit 4 of the display panel is at a first angle with respect to the first arrangement direction of the pixel unit 4, and the projection of the second electrode 6 on the pixel unit 4 of the display panel is at a second angle with respect to the first arrangement direction of the pixel unit 4. The arrangement directions of the first electrode 5, the second electrode 6 and the pixel unit 4 are inclined by a certain angle, so that each lens unit can split light in the first arrangement direction and the second arrangement direction, and a screen can show a clear three-dimensional effect when being turned and switched horizontally and vertically; in addition, the influence of moire can be eliminated, and the stereoscopic display effect is improved. When the liquid crystal lens is used for stereoscopic display, different voltages are respectively applied to the first electrode 5 and the second electrode 6 to form a potential difference between the first substrate 1 and the second substrate 2, so that liquid crystal molecules of the liquid crystal layer 3 are driven to deflect to form a liquid crystal lens unit with a gradually-changed refractive index, and the liquid crystal lens unit can adjust light to present a stereoscopic image. Because the length-width ratio of the display screen is different between the horizontal position and the vertical position, the arrangement direction and the arrangement angle of the first electrode 5 and the second electrode 6 are different, i.e. the first electrode 5 and the second electrode 6 are not parallel to each other.
When the display screen is horizontally or vertically arranged, the first electrode 5 and the second electrode 6 have different functions and different voltages applied thereto, and if the screen is horizontally arranged, the first electrode 5 is used as a driving electrode, the second electrode 6 is used as a common electrode, and different voltages are applied thereto respectively to drive liquid crystal molecules in the liquid crystal layer 3 to deflect, so as to form a lens unit, thereby realizing a horizontally arranged stereoscopic display effect. When the placing position of the screen is changed, namely the horizontal screen is changed into the vertical screen, the first electrode 5 is used as a common electrode, the second electrode 6 is used as a driving electrode, and different voltages are respectively applied to the common electrode and the driving electrode so as to drive liquid crystal molecules of the liquid crystal layer 3 to deflect, thereby forming a lens unit and realizing the vertical stereoscopic display effect. It is worth pointing out that the driving electrodes and the common electrodes corresponding to the horizontal or vertical display screen can be interchanged, and only the applied voltage is needed to satisfy the requirements of the lens.
The first electrodes 5 are disposed on the first substrate 1 at intervals, and the second electrodes 6 are disposed on the second substrate 2 at intervals, that is, a certain distance is disposed between two adjacent first electrodes 5 or between two adjacent second electrodes 6. Since the first electrode 5 and the second electrode 6 may be both used as a common electrode and a driving electrode, in order to ensure the horizontal or vertical stereoscopic display effect of the display screen, the width of the electrodes and the distance between adjacent electrodes need to meet certain requirements, and the electrodes are arranged periodically. Experiments show that the electrode width is larger than the electrode spacing, and generally, the ratio of the electrode width to the electrode spacing is larger than 0.7 and smaller than 3. That is, the ratio of the width of the first electrode 5 to the distance between the first electrode 5 and its adjacent first electrode 5 is 0.7 to 3, and similarly, the ratio of the width of the second electrode 6 to the distance between the second electrode 6 and its adjacent second electrode 6 is 0.7 to 3. Preferably, when the ratio of the electrode width to the electrode spacing is 1 to 1.5, the stereoscopic display effect is good.
Specifically, the first electrodes 5 are parallel to each other, and the second electrodes 6 are parallel to each other, but since the length-width ratios of the display screen in the horizontal and vertical positions are different, and the arrangement directions of the pixel units 4 are different, in order to improve the stereoscopic display effect in the horizontal and vertical positions, the arrangement directions of the first electrodes 5 and the second electrodes 6 are different, that is, the first angle and the second angle are different. That is, although the plurality of first electrodes 5 or the plurality of second electrodes 6 are parallel to each other and extend at a uniform angle, there is no parallel relationship between the first electrodes 5 and the second electrodes 6.
The structure of the liquid crystal lens of the present invention is briefly introduced above, and the power-on mode and the stereoscopic display thereof will be further explained with reference to specific application scenarios.
Specifically, as shown in fig. 4, when the display screen is horizontally arranged, the first electrode 5 is used as a driving electrode, first voltages with different intensities are applied to the first electrodes 5 at different positions, the second electrode 6 is used as a common electrode to which second voltages with the same intensity are applied, and a voltage difference between the second voltages and the first voltages forms a first electric field between the first electrode 5 and the second electrode 6, that is, a first electric field is formed between the first substrate 1 and the second substrate 2, and under the driving action of the first electric field, the arrangement direction of liquid crystal molecules of the liquid crystal layer 3 is deflected, and the deflection direction and the angle are different, so that a plurality of horizontally arranged lens units are formed; it is noted that the intensity of the first voltage applied to the first electrode 5 increases from the center to both ends of the transverse lens unit; and the voltage intensity applied to the first electrodes 5 symmetrical along the two sides of the center of the transverse lens unit is equal, and the uniform pressurization can be adopted for the first electrodes or the first electrodes can be respectively pressurized.
The electrodes of the transverse lens unit are distributed in a centrosymmetric mode, and the voltage difference between the second voltage and the first voltage is sequentially increased from the center of the transverse lens unit to two ends of the transverse lens unit, namely the intensity of the first electric field is sequentially increased from the center of the transverse lens unit to two ends.
Specifically, as shown in fig. 5, when the display screen is vertically disposed, the first electrode 5 serves as a common electrode to which a third voltage with the same intensity is applied, the second electrode 6 serves as a driving electrode, the second electrodes 6 located at different positions are applied with fourth voltages with different intensities, and a voltage difference between the third voltage and the fourth voltage forms a second electric field between the first electrode 5 and the second electrode 6, that is, a second electric field is formed between the first substrate 1 and the second substrate 2, and under the driving action of the second electric field, the arrangement direction of the liquid crystal molecules of the liquid crystal layer 3 is deflected, and the deflection direction and the angle are different, so that a plurality of vertically disposed lens units are formed; it is noted that the intensity of the fourth voltage applied to the second electrode 6 increases from the center to both ends of the longitudinal lens unit; and the voltage intensity applied to the second electrodes 6 symmetrical along the two sides of the center of the longitudinal lens unit is equal, and the uniform pressurization can be adopted for the second electrodes, or the pressurization can be respectively adopted for the second electrodes.
The electrodes of the longitudinal lens units are distributed in a centrosymmetric manner, and the voltage difference between the third voltage and the fourth voltage is sequentially increased from the center of the longitudinal lens units to two ends of the longitudinal lens units, namely, the intensity of the second electric field is sequentially increased from the center of the transverse lens units to two ends. It should be noted that the voltages applied to the electrodes symmetrically disposed along the center of the longitudinal lens unit are equal in intensity, and may be applied in a uniform manner or may be applied separately.
As can be seen from fig. 4 and 5, when the display screen is in the horizontal and vertical states, the directions of the first and second electric fields are different, and therefore the directions of the liquid crystal molecules in the liquid crystal layer 3 are different, and the directions of the formed lens cells are different.
To further illustrate, in this embodiment, taking a 5.5 inch 1080P display screen as an example, when the display screen is horizontally placed, the length of the horizontal lens unit is designed to be 210 micrometers, the angle is 72 ° left, the electrode width of the corresponding first electrode 5 and second electrode 6 is 16 micrometers, the distance between two adjacent first electrodes 5 or the distance between two adjacent second electrodes 6 is 14 micrometers, that is, liquid crystal molecules between 7 adjacent first electrodes 5 and second electrodes 6 are constructed into one horizontal lens unit, and are symmetrically pressed around the center of the horizontal lens unit, and voltages applied by the symmetrical first electrodes 5 are equal; when the display screen is vertically arranged, the length of the vertically arranged lens unit is 192 micrometers, the angle is 60 degrees of right inclination, the electrode width of the corresponding first electrode 5 and second electrode 6 is 16 micrometers, the distance between two adjacent first electrodes 5 or the distance between two adjacent second electrodes 6 is 16 micrometers, namely, liquid crystal molecules between 6 adjacent first electrodes 5 and second electrodes 6 construct a horizontally arranged lens unit, and are symmetrically pressurized by the center of the vertically arranged lens unit, and voltages applied by the symmetrical second electrodes 6 are equal. Or,
when the display screen is horizontally arranged, the length of the horizontal lens unit is designed to be 192 micrometers, the angle is 72 degrees, the electrode width of the corresponding first electrode 5 and the second electrode 6 is 16 micrometers, the distance between every two adjacent first electrodes 5 or the distance between every two adjacent second electrodes 6 is 16 micrometers, namely liquid crystal molecules between 6 adjacent first electrodes 5 and 6 construct a horizontal lens unit, the liquid crystal molecules are symmetrically pressurized by the center of the horizontal lens unit, and voltages applied by the symmetrical first electrodes 5 are equal; when the display screen is vertically arranged, the length of the vertically arranged lens unit is 192 micrometers, the angle is 60 degrees of right inclination, the electrode width of the corresponding first electrode 5 and second electrode 6 is 16 micrometers, the distance between two adjacent first electrodes 5 or the distance between two adjacent second electrodes 6 is 16 micrometers, namely, liquid crystal molecules between 6 adjacent first electrodes 5 and second electrodes 6 construct a horizontally arranged lens unit, and are symmetrically pressurized by the center of the vertically arranged lens unit, and voltages applied by the symmetrical second electrodes 6 are equal. It should be noted that the design length and the inclination angle of the horizontal lens unit or the vertical lens unit are designed according to the arrangement of the pixel units 4 and the viewing distance, and are not greatly related to the size of the display screen.
Further, when the display screen performs 2D display, there may be a color dot phenomenon of the spacer, and in order to avoid such adverse effects as much as possible, as shown in fig. 6, in the embodiment of the present invention, voltages with different intensities are applied to the first electrode 5 and the second electrode 6, respectively, so as to form a certain voltage difference between the two electrodes, thereby eliminating the color dot phenomenon of the spacer. Specifically, a fifth voltage with the same intensity is applied to the first electrode 5, a sixth voltage with the same intensity is applied to the second electrode 6, a voltage difference between the fifth voltage and the sixth voltage forms a relatively uniform third electric field, and under the action of the third electric field, the deflection directions and angles of the liquid crystal molecules of the liquid crystal layer 3 are the same, that is, the arrangement directions of the liquid crystal molecules are the same, so that the liquid crystal layer 3 does not form a lens unit and does not have a lens effect.
Because the power-on modes of the display screen in the transverse and longitudinal positions are different to a certain extent, and the display screen in the transverse or longitudinal position is in a 2D state and a 3D state, the display screen needs to be judged in a background so as to provide corresponding control voltage.
For example: the display screen is in a horizontal power-on 2D state to a horizontal 3D state, a state is judged, and then voltage switching processing is carried out; from the horizontal 2D state to the vertical 3D state, a state judgment is needed, and then voltage switching processing is carried out; under the condition that the screen is changed from horizontal 2D to vertical 2D, the switching processing on the voltage can not be carried out; if the 3D state is changed from the horizontal 3D state to the vertical 3D state, certain switching processing needs to be carried out on the voltage; if the state is changed from the horizontal 3D state to the horizontal 2D state, the state is judged, and then the voltage switching processing is carried out; if the state is changed from the horizontal 3D state to the vertical 2D state, the state is judged, and then the voltage switching processing is carried out; the above cases are vice versa. These switching processes may include an intermediate voltage state so that these states can be switched quickly.
Example two
On the basis of the first embodiment, the present embodiment further improves the liquid crystal lens of the present invention.
Specifically, as shown in fig. 7, the liquid crystal lens further includes: a third electrode 7 disposed between the first electrode 5 and the first substrate 1, and a fourth electrode 8 disposed between the second electrode 6 and the second substrate 2, wherein a relatively uniform fourth electric field is generated between the third electrode 7 and the fourth electrode 8, and under the action of the fourth electric field, the deflection directions and angles of the liquid crystal molecules of the liquid crystal layer 3 are the same, i.e., the arrangement directions of the liquid crystal molecules are the same, so that the liquid crystal layer 3 does not form a lens unit and does not have a lens effect. The third electrode 7 and the fourth electrode 8 are both plate-shaped electrodes, that is, surface electrodes, and a certain voltage is applied to the third electrode 7 and the fourth electrode 8 to form a uniform fourth electric field between the first substrate 1 and the second substrate 2, so that liquid crystal molecules are driven to shift by the same angle, and 2D display is realized. That is, when 2D display is performed, a certain voltage is applied to the third electrode 7 and the fourth electrode 8, and when a uniform fourth electric field is formed between the first substrate 1 and the second substrate 2, the same voltage is applied to the first electrode 5 and the second electrode 6 in the air; in the 3D display, a certain voltage is applied to the first electrode 5 and the second electrode 6, and when a first electric field or a second electric field is formed between the first substrate 1 and the second substrate 2, the same voltage is suspended or applied to the third electrode 7 and the fourth electrode 8.
In summary, the upper and lower electrodes of the liquid crystal lens of the invention all adopt a multi-electrode structure, and are respectively controlled during 3D display, and when the screen is in a horizontal screen and a vertical screen, the applied voltages of the upper and lower electrodes are different, thereby forming different lens effects, realizing that the stereoscopic display effect is supported under both horizontal and vertical conditions, and satisfying the stereoscopic display requirements of users. In addition, the upper and lower layers of electrodes of the liquid crystal lens are inclined at a certain angle according to the arrangement of the pixel units so as to eliminate the influence of moire fringes and improve the stereoscopic display effect and the watching comfort level.
According to another aspect of the embodiments of the present invention, there is also provided a stereoscopic display device, including the liquid crystal lens as described above, and other related peripheral circuits or modules. It should be noted that all the implementations in the above embodiments are applicable to the embodiment of the stereoscopic display device, and the same technical effects can be achieved.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (11)
1. A liquid crystal lens comprising: the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is positioned between the first substrate and the second substrate; it is characterized in that the preparation method is characterized in that,
one surface of the first substrate, which is close to the liquid crystal layer, is provided with a plurality of strip-shaped first electrodes, and the projection of the first electrodes on the pixel units of the display panel forms a first angle with one side of the pixel units;
one side of the second substrate, which is close to the liquid crystal layer, is provided with a plurality of strip-shaped second electrodes, and the projection of the second electrodes on the pixel units of the display panel and one side of the pixel units form a second angle.
2. The liquid crystal lens according to claim 1, wherein a ratio of a width of the first electrode to a distance between the first electrode and the first electrode adjacent thereto is 0.7 to 3.
3. The liquid crystal lens of claim 1, wherein the first electrodes are parallel to each other, and the second electrodes are parallel to each other.
4. The liquid crystal lens according to claim 1, wherein when a first voltage having different intensities is applied to the first electrodes located at different positions and a second voltage having the same intensity is applied to the second electrodes, a voltage difference between the second voltage and the first voltage forms a first electric field between the first electrodes and the second electrodes, and a liquid crystal molecule alignment direction of the liquid crystal layer forms a plurality of lateral lens units; wherein the intensity of the first voltage is sequentially increased from the center of the transverse lens unit to both ends of the transverse lens unit.
5. The liquid crystal lens of claim 4, wherein a voltage difference between the second voltage and the first voltage increases in sequence from a center of the lateral lens unit to both ends of the lateral lens unit.
6. The liquid crystal lens according to claim 1, wherein when a third voltage having the same intensity is applied to the first electrode and a fourth voltage having different intensities is applied to the second electrode located at a different position, a voltage difference between the third voltage and the fourth voltage forms a second electric field between the first electrode and the second electrode, and a liquid crystal molecule alignment direction of the liquid crystal layer forms a plurality of longitudinal lens units; wherein the intensity of the fourth voltage is sequentially increased from the center of the longitudinal lens unit to the two ends of the transverse lens unit.
7. The liquid crystal lens of claim 6, wherein a voltage difference between the third voltage and the fourth voltage increases in order from a center of the longitudinal lens unit to both ends of the lateral lens unit.
8. The liquid crystal lens of claim 2, wherein when a fifth voltage having the same intensity is applied to the first electrode and a sixth voltage having the same intensity is applied to the second electrode, a voltage difference between the fifth voltage and the sixth voltage forms a third electric field, and the arrangement directions of the liquid crystal molecules of the liquid crystal layer are the same.
9. The liquid crystal lens of claim 1, further comprising: the third electrode is arranged between the first electrode and the first substrate, the fourth electrode is arranged between the second electrode and the second substrate, a fourth electric field is generated between the third electrode and the fourth electrode, and the arrangement directions of liquid crystal molecules of the liquid crystal layer are consistent.
10. The liquid crystal lens of claim 9, wherein the third electrode and the fourth electrode are both plate-shaped electrodes.
11. A stereoscopic display device comprising the liquid crystal lens according to any one of claims 1 to 10.
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| CN201511025905.5A CN106932970A (en) | 2015-12-30 | 2015-12-30 | A kind of liquid crystal lens and 3 d display device |
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| CN201511025905.5A CN106932970A (en) | 2015-12-30 | 2015-12-30 | A kind of liquid crystal lens and 3 d display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632451A (en) * | 2017-10-26 | 2018-01-26 | 京东方科技集团股份有限公司 | A kind of display panel, display device and display methods |
| CN110308596A (en) * | 2018-12-06 | 2019-10-08 | 友达光电股份有限公司 | Display device |
| CN115047687A (en) * | 2021-03-08 | 2022-09-13 | 电子科技大学 | Array device capable of independently controlling lens unit, imaging apparatus and driving method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107632451A (en) * | 2017-10-26 | 2018-01-26 | 京东方科技集团股份有限公司 | A kind of display panel, display device and display methods |
| CN107632451B (en) * | 2017-10-26 | 2020-05-12 | 京东方科技集团股份有限公司 | Display panel, display device and display method |
| CN110308596A (en) * | 2018-12-06 | 2019-10-08 | 友达光电股份有限公司 | Display device |
| CN110308596B (en) * | 2018-12-06 | 2022-03-01 | 友达光电股份有限公司 | Display device |
| CN115047687A (en) * | 2021-03-08 | 2022-09-13 | 电子科技大学 | Array device capable of independently controlling lens unit, imaging apparatus and driving method |
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