CN204155049U - Liquid crystal lens and display device - Google Patents
Liquid crystal lens and display device Download PDFInfo
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- CN204155049U CN204155049U CN201420681470.4U CN201420681470U CN204155049U CN 204155049 U CN204155049 U CN 204155049U CN 201420681470 U CN201420681470 U CN 201420681470U CN 204155049 U CN204155049 U CN 204155049U
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 71
- 239000000758 substrate Substances 0.000 claims abstract description 71
- 230000005684 electric field Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 238000003384 imaging method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of liquid crystal lens and display device, belongs to display technique field, forms stronger transverse electric field and affect the problem of imaging effect between its strip shaped electric poles that can solve existing liquid crystal lens.Liquid crystal lens of the present utility model, comprise: first substrate, second substrate, and the liquid crystal layer be arranged between described first substrate and second substrate, described first substrate is provided with multilayer strip shaped electric poles on the face of described second substrate, and described second substrate is provided with the opposite electrode be at least oppositely arranged with described strip shaped electric poles on the face of described first substrate; Wherein, each layer described strip shaped electric poles mutually insulated and projection zero lap on described first substrate.
Description
Technical Field
The utility model belongs to the technical field of show, concretely relates to liquid crystal lens and display device.
Background
With the continuous development of display technology, stereoscopic (3D) display has become an important development trend in the display field, and the basic principle of 3D display is to make the left and right eyes of a person respectively see different images to form a stereoscopic image pair, and then make the user generate stereoscopic impression on the viewed images through brain vision processing.
Currently, 3D display is in two categories, naked eye type and glasses type. The images are processed on the display panel during naked eye type 3D display to generate the three-dimensional images, so that a user can experience 3D display by naked eyes without 3D glasses.
The liquid crystal lens is one of the methods for realizing the naked-eye type 3D display, and is generally disposed on the display panel. Referring to fig. 1, a conventional liquid crystal lens generally includes a first substrate 101, a second substrate 201, and a liquid crystal layer between the two substrates, wherein a strip electrode 102 is disposed on the first substrate 101, a plate electrode 202 is disposed on the second substrate 201, and an electric field formed between the strip electrode 102 and the plate electrode 202 drives the liquid crystal layer therebetween to form a plurality of lenses in the liquid crystal layer, so that an image displayed on a display panel is refracted to a left eye viewing area and a right eye viewing area, respectively, to form a stereoscopic image.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the above-mentioned problem to current liquid crystal lens existence provides a liquid crystal lens and display device who effectively improves the imaging effect.
Solve the utility model discloses technical scheme that technical problem adopted is a liquid crystal lens, include: the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer arranged between the first substrate and the second substrate, wherein the surface of the first substrate facing the second substrate is provided with a plurality of layers of strip-shaped electrodes, and the surface of the second substrate facing the first substrate is provided with opposite electrodes at least opposite to the strip-shaped electrodes; wherein,
the strip electrodes are insulated from each other and have no overlapping projection on the first substrate.
The utility model discloses a strip electrode number is the same on the first base plate of liquid crystal lens if with the strip electrode number that sets up on the first base plate of current liquid crystal lens, because the electrode strip of this embodiment is that the layering sets up to double-phase adjacent electrode strip has been increased in direction of height (vertical) distance, according to the field intensity formula: the distance in the height direction is increased at the moment, namely the value of d is increased, so that the strength of a transverse electric field formed between two adjacent strip-shaped electrodes is weakened, the problem that in the prior art, as a stronger transverse electric field is generated between two adjacent strip-shaped electrodes and liquid crystal molecules in a corresponding liquid crystal layer are influenced, a phase delay curve formed by a liquid crystal lens is not ideal enough is solved, and the imaging effect of the electric control liquid crystal lens is improved.
Preferably, the counter electrode is a plate electrode.
Preferably, the first substrate faces the second substrate, two layers of electrodes are arranged on one surface of the second substrate, the first layer of strip-shaped electrodes comprise a plurality of first strip-shaped electrodes, the second layer of strip-shaped electrodes comprise a plurality of second strip-shaped electrodes, and the first strip-shaped electrodes and the second strip-shaped electrodes are arranged at intervals.
Preferably, when 2D screen display is performed, the voltage applied to the stripe electrodes on the first substrate is 0V.
Preferably, the strip-shaped electrodes arranged on the first substrate are divided into a plurality of repeating units, each repeating unit comprises n adjacent strip-shaped electrodes, and n is an integer greater than or equal to 2;
when 3D picture display is carried out, the applied voltage of each strip electrode in each repeating unit is different.
It is further preferable that each strip electrode group includes 6 strip electrodes.
Preferably, a planarization layer is disposed between two adjacent layers of the strip electrodes on the first substrate.
More preferably, the planarizing layer has a thickness of 2 to 5 μm.
Preferably, a plurality of protruding structures are disposed on the first substrate, and the second strip-shaped electrodes are disposed on the protruding structures.
The technical scheme who solves the technical problem the utility model discloses the technical scheme who adopts is a display device, and it includes above-mentioned liquid crystal lens.
Because the utility model discloses a display device includes foretell liquid crystal lens, so it can be effectual the demonstration that forms between the two adjacent strip electrodes stronger horizontal electric field caused bad.
Drawings
FIG. 1 is a schematic diagram of a conventional liquid crystal lens;
FIG. 2 is a diagram showing simulation results of a liquid crystal lens according to the prior art;
fig. 3 is a schematic view of a liquid crystal lens according to embodiment 1 of the present invention;
fig. 4 is a simulation result diagram of the liquid crystal lens according to embodiment 1 of the present invention.
Wherein the reference numerals are: 101. a first substrate; 102. a strip electrode; a first strip electrode 1021; second strip electrodes 1022; 103. a planarization layer; 201. a second substrate; 202. a plate-shaped electrode.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 3 and 4, the present embodiment provides a liquid crystal lens, which includes: the liquid crystal display panel comprises a first substrate 101, a second substrate 201 and a liquid crystal layer arranged between the first substrate 101 and the second substrate 201, wherein the surface of the first substrate 101 facing the second substrate 201 is provided with a plurality of layers of strip-shaped electrodes 102, and the surface of the second substrate 201 facing the first substrate 101 is provided with opposite electrodes at least opposite to the strip-shaped electrodes; each layer of the strip electrodes 102 is insulated from each other and has no overlapping projection on the first substrate 101. Wherein, a certain voltage difference exists between the voltages applied to the opposite electrode and the strip electrode 102 to form an electric field to drive the liquid crystal molecules to deflect, thereby forming a plurality of liquid crystal lenses.
The number of the strip-shaped electrodes 102 on the first substrate 101 of the liquid crystal lens of this embodiment is the same as the number of the strip-shaped electrodes 102 on the first substrate 101 of the existing liquid crystal lens, and because the electrode strips of this embodiment are arranged in layers, the distance between two adjacent electrode strips in the height direction (longitudinal direction) is increased, according to the field intensity formula: the distance in the height direction is increased at this time, that is, the value of d is increased, so that the strength of the transverse electric field formed between two adjacent strip-shaped electrodes 102 is weakened, thereby improving the problem in the prior art that a phase delay curve formed by the liquid crystal lens is not ideal enough due to the fact that a strong transverse electric field is generated between two adjacent strip-shaped electrodes 102 and liquid crystal molecules in the corresponding liquid crystal layer are affected, so that the imaging effect of the liquid crystal lens is poor.
Specifically, fig. 2 is a graph showing an experimental result of a phase retardation curve formed by a conventional liquid crystal lens. As shown in fig. 1, in order to implement 3D display, voltages applied to adjacent strip-shaped electrodes 102 disposed on a first substrate 101 have a certain difference, and the strip-shaped electrodes are closer to each other, so a strong transverse electric field is generated between two adjacent strip-shaped electrodes 102, and the influence is generated on liquid crystal molecules in a liquid crystal layer, and further a phase retardation formed by a liquid crystal lens is not ideal enough, that is, a phase retardation curve at a position corresponding to the transverse electric field has a burr (i.e., a position circled in fig. 2), resulting in a problem of poor imaging effect of the liquid crystal lens. The phase retardation curve formed by the liquid crystal lens of the present embodiment is as shown in fig. 4, and the phase retardation curve is significantly gentle (as circled in fig. 4), so as to improve the imaging effect of the electrically controlled liquid crystal lens.
In order to realize the screen display, the voltages applied to the counter electrodes on the second substrate 201 are the same, and therefore, the counter electrodes are preferably plate-shaped electrodes 202. Of course, the counter electrode may be a slit electrode as long as the counter electrode is provided at a position on the second substrate 201 corresponding to the stripe electrodes 102 of the first substrate 101, and in this case, the width of the slit electrode on the second substrate 201 may be adjusted so that the liquid crystal molecules at the slit position are deflected in substantially the same direction as the liquid crystal molecules at the electrode position.
In order to simplify the structure of the liquid crystal lens, preferably, two layers of electrodes are disposed on a surface of the first substrate 101 facing the second substrate 201, the first layer of strip-shaped electrodes includes a plurality of first strip-shaped electrodes 1021, the second layer of strip-shaped electrodes includes a plurality of second strip-shaped electrodes 1022, the first strip-shaped electrodes 1021 and the second strip-shaped electrodes 1022 are disposed at intervals, at this time, a horizontal electric field generated between adjacent first strip-shaped electrodes 1021 and second strip-shaped electrodes 1022 is the smallest, and the imaging effect of the liquid crystal lens is improved most significantly. Of course, three, four or more layers of strip-shaped electrodes 102 are sequentially disposed on the surface of the first substrate 101 facing the second substrate 201, as long as the projections of the strip-shaped electrodes 102 on the first substrate 101 are not overlapped.
The liquid crystal lens of the embodiment of the present invention is disposed on the light emitting surface of the conventional display panel, so as to realize 2D image display and 3D image display.
Preferably, when 2D image display is performed, the voltage applied to the two layers of strip electrodes 102 disposed on the first substrate 101 is 0V, that is, no voltage is applied to the strip electrodes 102. Thereby displaying a 2D picture through the existing display panel.
Preferably, the strip-shaped electrodes 102 disposed on the first substrate 101 are divided into a plurality of repeating units, each repeating unit includes n adjacent strip-shaped electrodes 102, n is an integer greater than or equal to 2; when 3D screen display is performed, the applied voltage is different for each of the strip electrodes 102 in each of the repeating units. Therefore, by applying voltage to the two layers of strip electrodes 102 to control the liquid crystal molecule deflection, the left eye and the right eye of a user can watch two pictures at different positions, and at the moment, the left eye picture and the right eye picture are combined to form a 3D display image. Although the voltages applied to any two adjacent strip electrodes 102 in the two layers of strip electrodes 102 are different, that is, there is a voltage difference, since there is a height difference between the two layers of strip electrodes 102, according to the field intensity formula: the distance in the height direction is increased at this time, that is, the value of d is increased, so that the strength of the transverse electric field formed between two adjacent strip-shaped electrodes 102 is weakened, thereby improving the problem in the prior art that a phase delay curve formed by the liquid crystal lens is burred due to the fact that a strong transverse electric field is generated between two adjacent strip-shaped electrodes 102 and liquid crystal molecules in a corresponding liquid crystal layer are affected, so that the imaging effect of the liquid crystal lens is poor. It is further preferable that each repeating unit includes 6 strip-shaped electrodes 102, and of course, each repeating unit is not limited to include 6 strip-shaped electrodes 102, and may be specifically configured according to specific situations.
Preferably, a planarization layer 103 is disposed between two adjacent layers of the strip-shaped electrodes 102, so that the two adjacent layers of the strip-shaped electrodes 102 have a certain height difference and are insulated from each other. Specifically, as shown in fig. 3, a planarization layer is disposed between the first layer of strip-shaped electrodes and the second layer of strip-shaped electrodes. Further preferably, the thickness of the planarization layer 103 is 2 μm to 5 μm. The height difference between two adjacent strip-shaped electrodes 102 is realized by the thickness of the planarization layer 103, so as to increase the distance between two adjacent strip-shaped electrodes 102, and weaken the lateral electric field between two strip-shaped electrodes 102. It is further preferable that the thickness of the planarization layer is 2 μm, and in this case, the display device can be made thinner and thinner, but the thickness is not limited thereto, and may be specifically set according to the specific situation. Of course, in order to make two adjacent layers of the strip-shaped electrodes 102 have a certain height difference, it may also be preferable that a plurality of protruding structures are disposed on the first substrate 101, and the second strip-shaped electrodes 1022 are disposed on the protruding structures, so that a height difference exists between two layers of the strip-shaped electrodes 102, thereby weakening the lateral electric field between the strip-shaped electrodes 102 and the strip-shaped electrodes 102.
It should be noted that, in the present embodiment, the adjacent strip electrodes 102 refer to two adjacent strip electrodes 102 in two adjacent layers, rather than two adjacent strip electrodes 102 in the same layer.
Example 2:
the present embodiment provides a display device including the liquid crystal lens in embodiment 1. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
Since the display device of this embodiment includes the liquid crystal lens in embodiment 1, it can effectively improve the poor display caused by the strong lateral electric field formed between two adjacent stripe electrodes 102.
Of course, the display device of the present embodiment is preferably a 3D display device, and it is also possible to implement 2D display, specifically by changing the voltage applied to the strip-shaped electrodes 102, and the implementation of 3D display and 2D display is the same as the prior art and will not be described in detail here.
Of course, other conventional structures, such as a display driving unit, may also be included in the display device of the present embodiment.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A liquid crystal lens comprising: the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal layer arranged between the first substrate and the second substrate, and is characterized in that a plurality of layers of strip-shaped electrodes are arranged on the surface of the first substrate facing the second substrate, and opposite electrodes at least opposite to the strip-shaped electrodes are arranged on the surface of the second substrate facing the first substrate; wherein,
the strip electrodes are insulated from each other and have no overlapping projection on the first substrate.
2. The liquid crystal lens of claim 1, wherein the counter electrode is a plate electrode.
3. The liquid crystal lens according to claim 1, wherein two layers of electrodes are disposed on a surface of the first substrate facing the second substrate, the first layer of strip-shaped electrodes comprises a plurality of first strip-shaped electrodes, the second layer of strip-shaped electrodes comprises a plurality of second strip-shaped electrodes, and the first strip-shaped electrodes and the second strip-shaped electrodes are disposed at intervals.
4. The liquid crystal lens according to any one of claims 1 to 3, wherein a voltage applied to the stripe electrodes on the first substrate is 0V when 2D image display is performed.
5. The liquid crystal lens according to any one of claims 1 to 3, wherein the stripe electrodes provided on the first substrate are divided into a plurality of repeating units, each repeating unit includes n adjacent stripe electrodes, n is an integer of 2 or more;
when 3D picture display is carried out, the applied voltage of each strip electrode in each repeating unit is different.
6. The liquid crystal lens of claim 5, wherein each of the repeating units comprises 6 stripe electrodes.
7. The liquid crystal lens according to any one of claims 1 to 3, wherein a planarization layer is provided between two adjacent layers of the stripe electrodes on the first substrate.
8. The liquid crystal lens according to claim 7, wherein the planarization layer has a thickness of 2 μm to 5 μm.
9. The liquid crystal lens according to claim 3, wherein a plurality of protrusion structures are disposed on the first substrate, and the second stripe electrodes are disposed on the protrusion structures.
10. A display device characterized in that the display device comprises the liquid crystal lens according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681470.4U CN204155049U (en) | 2014-11-12 | 2014-11-12 | Liquid crystal lens and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681470.4U CN204155049U (en) | 2014-11-12 | 2014-11-12 | Liquid crystal lens and display device |
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| CN204155049U true CN204155049U (en) | 2015-02-11 |
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| CN201420681470.4U Active CN204155049U (en) | 2014-11-12 | 2014-11-12 | Liquid crystal lens and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317133A (en) * | 2014-11-12 | 2015-01-28 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
| CN105607379A (en) * | 2016-03-16 | 2016-05-25 | 京东方科技集团股份有限公司 | Liquid crystal lens, drive method of liquid crystal lens and display device |
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2014
- 2014-11-12 CN CN201420681470.4U patent/CN204155049U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317133A (en) * | 2014-11-12 | 2015-01-28 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
| WO2016074440A1 (en) * | 2014-11-12 | 2016-05-19 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
| CN105607379A (en) * | 2016-03-16 | 2016-05-25 | 京东方科技集团股份有限公司 | Liquid crystal lens, drive method of liquid crystal lens and display device |
| WO2017156881A1 (en) * | 2016-03-16 | 2017-09-21 | 京东方科技集团股份有限公司 | Liquid crystal lens and driving method therefor, and display device |
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