CN106773183B - liquid crystal lens, stereoscopic display device, display method and manufacturing method - Google Patents
liquid crystal lens, stereoscopic display device, display method and manufacturing method Download PDFInfo
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- CN106773183B CN106773183B CN201710037431.9A CN201710037431A CN106773183B CN 106773183 B CN106773183 B CN 106773183B CN 201710037431 A CN201710037431 A CN 201710037431A CN 106773183 B CN106773183 B CN 106773183B
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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
- G02F1/1313—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 specially adapted for a particular application
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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
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
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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
- G02F1/15—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 an electrochromic effect
- G02F1/153—Constructional details
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13398—Spacer materials; Spacer properties
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a liquid crystal lens, a stereoscopic display device, a display method and a manufacturing method, wherein the liquid crystal lens comprises: first base plate, second base plate and set up liquid crystal layer and spacer between first base plate and second base plate, still include: the color-changeable structure is positioned between the first substrate and the second substrate, the orthographic projection of the color-changeable structure on the first substrate or the second substrate at least covers the orthographic projection of the spacer on the first substrate or the second substrate, and the color-changeable structure can be switched between a transparent state and a black state. When the display panel displays a black picture, the controllable color-variable structure is in a black state, so that the reflection of the spacer to light is reduced, and light spots are avoided.
Description
Technical Field
The invention relates to the technical field of liquid crystal lenses, in particular to a liquid crystal lens, a three-dimensional display device, a display method and a manufacturing method.
Background
the liquid crystal lens is applied to the field of display, has the advantages of simple control, strong reliability, low driving voltage and the like, and has huge potential applicability. However, in the design process, due to the large thickness of the liquid crystal layer of the liquid crystal lens, a large support ball, a photo spacer or a ball spacer, which supports the thickness of the liquid crystal cell, is required. The spacer has certain influence on the emergent direction of the light rays emitted by the display panel, so that the light intensity distribution in different directions of the watching interval can be changed, the contrast of the display effect is reduced, the color is deteriorated, and the larger the spacer is, the more serious the influence is. Especially, when the display panel displays a black picture, the spacer can form obvious bright spots on the reflected light when strong light is reflected, and the overall effect is affected. In addition, when the display panel displays a white picture, the light transmittance of the spacer and the peripheral liquid crystal are different, so that a dark area is formed in the region where the spacer is located.
Disclosure of Invention
in view of the above, the present invention provides a liquid crystal lens, a stereoscopic display device, a display method and a manufacturing method thereof, which are used to solve the problem of poor display caused by the spacer in the conventional liquid crystal lens.
in order to solve the above technical problem, the present invention provides a liquid crystal lens, including: first base plate, second base plate and set up in liquid crystal layer and spacer between first base plate and the second base plate still include: the color-changeable structure is positioned between the first substrate and the second substrate, the orthographic projection of the color-changeable structure on the first substrate or the second substrate at least covers the orthographic projection of the spacer on the first substrate or the second substrate, and the color-changeable structure can be switched between a transparent state and a black state.
Preferably, the color changeable structure includes an electrochromic layer and first and second transparent electrodes respectively located at both sides of the electrochromic layer, and the electrochromic layer is capable of switching between a transparent state and a black state according to a voltage applied to the first and second transparent electrodes.
Preferably, when a voltage is applied to the first transparent electrode and the second transparent electrode, the electrochromic layer is in a black state, and when no voltage is applied to the first transparent electrode and the second transparent electrode, the electrochromic layer is in a transparent state.
Preferably, the first transparent electrode and the second transparent electrode have thicknesses ofthe electrochromic layer has a thickness of
Preferably, the electrochromic layer adopts IrO2、Nb2O5Or TrO2And (4) preparing.
preferably, the color-changeable structure is arranged on the spacer and covers the surface of the spacer; or
the color-changeable structure is arranged on the first substrate and covers the surface of the first substrate facing the second substrate; or
The color-changeable structure is arranged on the second substrate and covers the surface of the second substrate facing the first substrate; or
the color-changeable structure and the spacer are both positioned on the same substrate, the color-changeable structure is positioned between the spacer and the substrate, the orthographic projection of the graph of the color-changeable structure on the substrate is overlapped with the orthographic projection of the spacer on the substrate, and the substrate is the first substrate or the second substrate; or
The color-changeable structure and the spacer are both positioned on the same substrate, the color-changeable structure is positioned on one side of the spacer, which is far away from the substrate, the color-changeable structure covers the upper end part of the spacer, and the substrate is the first substrate or the second substrate; or
the color-changeable structure and the spacer are positioned on different substrates, and the orthographic projection of the graph of the color-changeable structure on the substrate on which the color-changeable structure is positioned covers the orthographic projection of the spacer on the substrate on which the color-changeable structure is positioned.
The present invention also provides a stereoscopic display device, comprising: the liquid crystal display device comprises a display panel, the liquid crystal lens arranged on the display panel and a control module used for controlling the color-changeable structure in the liquid crystal lens to be switched between a transparent state and a black state.
Preferably, the control module comprises:
The image detection unit is used for detecting whether the display panel displays a black picture or a white picture;
and the switching unit is used for controlling the color-changeable structure to be in a black state when the image detection unit detects that the display panel displays a black picture, and controlling the color-changeable structure to be in a transparent state when the image detection unit detects that the display panel displays a white picture.
The invention also provides a display method of the stereoscopic display device, which is used for the stereoscopic display device and comprises the following steps:
detecting whether the display panel displays a black picture or a white picture;
and when detecting that the display panel displays a black picture, controlling the color-variable structure to be in a black state, and when detecting that the display panel displays a white picture, controlling the color-variable structure to be in a transparent state.
The invention also provides a manufacturing method of the liquid crystal lens, which comprises the following steps:
providing a first substrate and a second substrate;
Forming a spacer and a color-variable structure between the first substrate and the second substrate, wherein the orthographic projection of the color-variable structure on the first substrate or the second substrate at least covers the orthographic projection of the spacer on the first substrate or the second substrate, and the color-variable structure can be switched between a transparent state and a black state;
And performing box alignment on the first substrate and the second substrate.
the technical scheme of the invention has the following beneficial effects:
When the display panel displays a black picture, the color-variable structure can be controlled to be in a black state, so that the spacer achieves the effect of displaying the same as that of peripheral liquid crystal, the reflection of the spacer to light is reduced, and light spots caused by the reflection of the spacer to the light are avoided. When the display panel displays a white picture, the color-changeable structure can be controlled to be in a transparent state, so that the spacer achieves the effect of displaying the same as that of peripheral liquid crystal, and the problem of dark display area in the region where the spacer is located due to different light transmittance of the spacer and the liquid crystal is avoided.
Drawings
fig. 1 is a schematic structural diagram of a liquid crystal lens according to a first embodiment of the invention;
FIG. 2 is a schematic structural diagram of a liquid crystal lens according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a liquid crystal lens according to a third embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a liquid crystal lens according to a fourth embodiment of the present invention;
Fig. 5 is a schematic structural diagram of a liquid crystal lens according to a fifth embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
An embodiment of the present invention provides a liquid crystal lens, including: the liquid crystal lens comprises a first substrate, a second substrate, a liquid crystal layer and a spacer, wherein the liquid crystal layer and the spacer are arranged between the first substrate and the second substrate, and in order to solve the problem of poor display caused by the spacer, the liquid crystal lens further comprises: the color-changeable structure is positioned between the first substrate and the second substrate, the orthographic projection of the color-changeable structure on the first substrate or the second substrate at least covers the orthographic projection of the spacer on the first substrate or the second substrate, and the color-changeable structure can be switched between a transparent state and a black state.
in the embodiment of the invention, when the display panel displays a black picture, the color-variable structure can be controlled to be in a black state, so that the spacer achieves the effect of displaying the same as that of peripheral liquid crystal, the reflection of the spacer to light is reduced, and light spots caused by the reflection of the spacer to the light are avoided. When the display panel displays a white picture, the color-changeable structure can be controlled to be in a transparent state, so that the spacer achieves the effect of displaying the same as that of peripheral liquid crystal, and the problem of dark display area in the region where the spacer is located due to different light transmittance of the spacer and the liquid crystal is avoided.
In the embodiment of the present invention, the color-changeable structure may be various types of structures.
for example, in a preferred embodiment of the present invention, the color changeable structure includes an electrochromic layer and a first transparent electrode and a second transparent electrode respectively located at both sides of the electrochromic layer, and the electrochromic layer is capable of switching between a transparent state and a black state according to voltages applied to the first transparent electrode and the second transparent electrode.
Preferably, when voltage is applied to the first transparent electrode and the second transparent electrode, the electrochromic layer is in a black state, and when no voltage is applied to the first transparent electrode and the second transparent electrode, the electrochromic layer is in a transparent state, so that when the display panel is in a black screen, the spacer does not reflect external light.
Preferably, the first transparent electrode and the second transparent electrode have thicknesses ofthe electrochromic layer has a thickness ofthe thickness of the color-changeable structure is low, and the whole thickness of the liquid crystal lens cannot be greatly influenced.
Of course, in some other embodiments of the present invention, the color-changeable structure may also be another type of structure, for example, including an electrochromic layer and a current providing unit connected to the electrochromic layer, and the electrochromic layer can switch between a transparent state and a black state according to the current provided by the current providing unit.
preferably, the electrochromic layer adopts IrO2、Nb2O5Or TrO2and (4) preparing. Of course, other types of electrochromic layer materials are not excluded.
the first transparent electrode and the second transparent electrode can be made of transparent oxide conductive materials, such as ITO (indium tin oxide), or can be made of transparent metals.
The color-changeable structure can be arranged in various ways, and specifically comprises:
1) The color-changeable structure is arranged on the shock insulator and covers the surface of the shock insulator;
Preferably, the color-changeable structure covers only the surface of the spacer, which can reduce the material used for the color-changeable structure. Of course, the color-changeable structure can cover other areas of the substrate where the spacer is located besides the surface of the spacer.
2) The color-changeable structure is arranged on the first substrate and covers the surface of the first substrate facing the second substrate;
3) the color-changeable structure is arranged on the second substrate and covers the surface of the second substrate facing the first substrate;
4) The color-changeable structure and the spacer are both positioned on the same substrate, the color-changeable structure is positioned between the spacer and the substrate, the orthographic projection of the graph of the color-changeable structure on the substrate is overlapped with the orthographic projection of the spacer on the substrate, and the substrate is the first substrate or the second substrate;
5) The color-changeable structure and the spacer are both positioned on the same substrate, the color-changeable structure is positioned on one side of the spacer, which is far away from the substrate, the color-changeable structure covers the upper end part of the spacer, and the substrate is the first substrate or the second substrate;
6) The color-changeable structure and the spacer are positioned on different substrates, and the orthographic projection of the graph of the color-changeable structure on the substrate on which the color-changeable structure is positioned covers the orthographic projection of the spacer on the substrate on which the color-changeable structure is positioned.
the following describes an example of the arrangement of the color variable structure.
example one
referring to fig. 1, fig. 1 is a schematic structural diagram of a liquid crystal lens according to a first embodiment of the present invention, the liquid crystal lens according to the first embodiment of the present invention includes: a first substrate 11, a second substrate 12, and a liquid crystal layer (not shown) and a spacer 13 disposed between the first and second substrates, the spacer 13 being disposed on the second substrate 12. In order to solve the problem of poor display caused by the arrangement of the spacer, the liquid crystal lens of the embodiment of the invention further comprises: the color-changeable structure 14 is positioned between the first substrate 11 and the second substrate 12, the color-changeable structure 14 is arranged on the spacer 13 and covers the surface of the spacer 13, and the color-changeable structure 14 can be switched between a transparent state and a black state.
In an embodiment of the present invention, the color changeable structure 14 includes: an electrochromic layer 141, and a first transparent electrode 142 and a second transparent electrode 143 on both sides of the electrochromic layer 141, wherein the electrochromic layer 141 can be switched between a transparent state and a black state according to a voltage applied to the first transparent electrode 142 and the second transparent electrode 143.
Example two
referring to fig. 2, fig. 2 is a schematic structural diagram of a liquid crystal lens according to a second embodiment of the present invention, the liquid crystal lens according to the second embodiment of the present invention includes: the liquid crystal lens comprises a first substrate 11, a second substrate 12, a liquid crystal layer (not shown) and a spacer 13, wherein the liquid crystal layer and the spacer 13 are arranged between the first substrate and the second substrate, and the spacer 13 is arranged on the second substrate 12, so that the problem of poor display caused by the spacer is solved, and the liquid crystal lens further comprises: and a color variable structure 14 located between the first substrate 11 and the second substrate 12, wherein the color variable structure 14 is disposed on the first substrate 11 and covers a surface of the first substrate 11 facing the second substrate 12, and the color variable structure 14 is switchable between a transparent state and a black state.
in an embodiment of the present invention, the color changeable structure 14 includes: an electrochromic layer 141, and a first transparent electrode 142 and a second transparent electrode 143 on both sides of the electrochromic layer 141, wherein the electrochromic layer 141 can be switched between a transparent state and a black state according to a voltage applied to the first transparent electrode 142 and the second transparent electrode 143.
in the embodiment of the present invention, the spacer 13 is disposed on the second substrate 12. Of course, in other embodiments of the present invention, the spacers 13 may also be disposed on the first substrate 11.
EXAMPLE III
Referring to fig. 3, fig. 3 is a schematic structural diagram of a liquid crystal lens according to a third embodiment of the present invention, the liquid crystal lens according to the third embodiment of the present invention includes: the liquid crystal lens comprises a first substrate 11, a second substrate 12, a liquid crystal layer (not shown) and a spacer 13, wherein the liquid crystal layer and the spacer 13 are arranged between the first substrate and the second substrate, and the spacer 13 is arranged on the second substrate 12, so that the problem of poor display caused by the spacer is solved, and the liquid crystal lens further comprises: a color-changeable structure 14 located between the first substrate 11 and the second substrate 12, wherein the color-changeable structure 14 is disposed on the second substrate 12 and covers a surface of the second substrate 12 facing the first substrate 12, and the color-changeable structure 14 is switchable between a transparent state and a black state.
In an embodiment of the present invention, the color changeable structure 14 includes: an electrochromic layer 141, and a first transparent electrode 142 and a second transparent electrode 143 on both sides of the electrochromic layer 141, wherein the electrochromic layer 141 can be switched between a transparent state and a black state according to a voltage applied to the first transparent electrode 142 and the second transparent electrode 143.
in the embodiment of the present invention, the spacer 13 is disposed on the second substrate 12, but in other embodiments of the present invention, the spacer 13 may also be disposed on the first substrate 11.
example four
Referring to fig. 4, fig. 4 is a schematic structural diagram of a liquid crystal lens according to a fourth embodiment of the present invention, the liquid crystal lens according to the fourth embodiment of the present invention includes: in order to solve the problem of poor display caused by the spacer, the liquid crystal lens of the embodiment of the present invention further includes: the color-changeable structure 14 is positioned between the first substrate 11 and the second substrate 12, the color-changeable structure 14 and the spacer 13 are both arranged on the second substrate 12, the color-changeable structure 14 is positioned between the spacer 13 and the second substrate 12, the orthographic projection of the graph of the color-changeable structure 14 on the second substrate 12 is overlapped with the orthographic projection of the spacer 13 on the second substrate 12, and the color-changeable structure 14 can be switched between a transparent state and a black state.
in an embodiment of the present invention, the color changeable structure 14 includes: an electrochromic layer 141, and a first transparent electrode 142 and a second transparent electrode 143 on both sides of the electrochromic layer 141, wherein the electrochromic layer 141 can be switched between a transparent state and a black state according to a voltage applied to the first transparent electrode 142 and the second transparent electrode 143.
EXAMPLE five
Referring to fig. 5, fig. 5 is a schematic structural diagram of a liquid crystal lens according to a fifth embodiment of the present invention, the liquid crystal lens according to the fifth embodiment of the present invention includes: in order to solve the problem of poor display caused by the spacer, the liquid crystal lens of the embodiment of the present invention further includes: the color-changeable structure 14 is positioned between the first substrate 11 and the second substrate 12, the color-changeable structure 14 is arranged on the first substrate 11, the spacer 13 is arranged on the second substrate 12, the orthographic projection of the pattern of the color-changeable structure 14 on the first substrate 11 is overlapped with the orthographic projection of the spacer 13 on the first substrate 11, and the color-changeable structure 14 can be switched between a transparent state and a black state.
in an embodiment of the present invention, the color changeable structure 14 includes: an electrochromic layer 141, and a first transparent electrode 142 and a second transparent electrode 143 on both sides of the electrochromic layer 141, wherein the electrochromic layer 141 can be switched between a transparent state and a black state according to a voltage applied to the first transparent electrode 142 and the second transparent electrode 143.
An embodiment of the present invention further provides a stereoscopic display device, including: the liquid crystal display device comprises a display panel, a liquid crystal lens and a control module, wherein the liquid crystal lens is arranged on the display panel, the control module is used for controlling the color changeable structure in the liquid crystal lens to be switched between a transparent state and a black state, and the liquid crystal lens is the liquid crystal lens in any embodiment.
preferably, the control module comprises:
The image detection unit is used for detecting whether the display panel displays a black picture or a white picture;
and the switching unit is used for controlling the color-changeable structure to be in a black state when the image detection unit detects that the display panel displays a black picture, and controlling the color-changeable structure to be in a transparent state when the image detection unit detects that the display panel displays a white picture.
the embodiment of the present invention further provides a display method of a stereoscopic display device, which is used for the stereoscopic display device, and the method includes:
Step S11: detecting whether the display panel displays a black picture or a white picture;
Step S12: and when detecting that the display panel displays a black picture, controlling the color-variable structure to be in a black state, and when detecting that the display panel displays a white picture, controlling the color-variable structure to be in a transparent state.
In the embodiment of the present invention, preferably, the color-changeable structure includes an electrochromic layer and a first transparent electrode and a second transparent electrode located on both sides of the electrochromic layer, and the electrochromic layer is capable of switching between a transparent state and a black state according to voltages applied to the first transparent electrode and the second transparent electrode.
Preferably, when voltage is applied to the first transparent electrode and the second transparent electrode, the electrochromic layer is in a black state, and when voltage is not applied to the first transparent electrode and the second transparent electrode, the electrochromic layer is in a transparent state, so that the spacers do not reflect light when the display panel is in a black screen, and light spots when the display panel is in the black screen are avoided.
The embodiment of the invention also provides a manufacturing method of the liquid crystal lens, which comprises the following steps:
Step S21: providing a first substrate and a second substrate;
Step S22: a spacer and a color-variable structure are formed between the first substrate and the second substrate, the orthographic projection of the color-variable structure on the first substrate or the second substrate at least covers the orthographic projection of the spacer on the first substrate or the second substrate, and the color-variable structure can be switched between a transparent state and a black state;
Step S23: and carrying out cell alignment on the first substrate and the second substrate, and filling a liquid crystal layer between the first substrate and the second substrate after cell alignment.
The following describes a method of manufacturing the liquid crystal lens shown in FIGS. 1 to 5.
referring to fig. 1, a method for manufacturing a liquid crystal lens in an embodiment includes the following steps:
Step S31: providing a second substrate 12;
step S32: forming spacers 13 on the second substrate 12;
step S33: forming a color-changeable structure 14 on a spacer 13, wherein the color-changeable structure 14 covers the surface of the spacer 13, and the color-changeable structure 14 comprises an electrochromic layer 141 and a first transparent electrode 142 and a second transparent electrode 143 on both sides of the electrochromic layer 141;
Specifically, the color changeable structure 14 may be formed by the following method:
Step S331: depositing a first transparent conductive material film on the spacer 13, then patterning the first transparent conductive material film, only keeping the part covering the spacer 13, and removing other parts to form a pattern of the first transparent electrode 142;
Step S332: depositing a layer of electrochromic material film on the first transparent electrode 142, then patterning the electrochromic material film, only keeping the part covered on the first transparent electrode 142, and removing other parts to form the pattern of the electrochromic layer 141;
step S333: a second transparent conductive material film is deposited on the electrochromic layer 141, and then the second transparent conductive material film is patterned to leave only a portion covering the electrochromic layer 141, and the other portion is removed to form a pattern of the second transparent electrode 142.
Specifically, the variable color structure 14 may be formed by the following method:
Sequentially depositing a first transparent conductive material film, an electrochromic material film and a second transparent conductive material film on the spacer 13, then patterning the first transparent conductive material film, the electrochromic material film and the second transparent conductive material film simultaneously, only keeping the part covered on the spacer 13, and removing other parts to form the patterns of the first transparent electrode 142, the electrochromic layer 141 and the second transparent electrode 142.
That is, the first transparent electrode 142, the electrochromic layer 141, and the second transparent electrode 142 are simultaneously patterned using a one-time patterning process.
Step S34: and performing cell alignment on the first substrate 11 and the second substrate 12, and filling a liquid crystal layer between the first substrate 11 and the second substrate 12 after cell alignment.
Referring to fig. 2, a method for manufacturing a liquid crystal lens in the second embodiment includes the following steps:
step S41: providing a second substrate 12;
Step S42: forming spacers 13 on the second substrate 12;
step S43: providing a first substrate 11;
Step S44: a second transparent electrode 143, an electrochromic layer 141, and a first transparent electrode 142 are sequentially formed on the first substrate 11, the second transparent electrode 143, the electrochromic layer 141, and the first transparent electrode 142 constitute a color variable structure 14, and the color variable structure 14 covers a surface of the first substrate 11 facing the second substrate 12.
step S45: the first substrate 11 and the second substrate 12 are aligned, and a liquid crystal layer is filled between the aligned first substrate 11 and the aligned second substrate 13.
Referring to fig. 3, a method for manufacturing a liquid crystal lens in the third embodiment includes the following steps:
Step S51: providing a second substrate 12;
Step S52: a second transparent electrode 143, an electrochromic layer 141, and a first transparent electrode 142 are sequentially formed on the second substrate 12, the second transparent electrode 143, the electrochromic layer 141, and the first transparent electrode 142 constitute a color variable structure 14, and the color variable structure 14 covers a surface of the second substrate 12 facing the first substrate 11.
Step S53: forming a spacer 13 on the color-changeable structure 14;
Step S54: providing a first substrate 11;
step S55: the first substrate 11 and the second substrate 12 are aligned, and a liquid crystal layer is filled between the aligned first substrate 11 and the aligned second substrate 13.
referring to fig. 4, a method for manufacturing a liquid crystal lens in the fourth embodiment includes the following steps:
Step S61: providing a second substrate 12;
Step S62: forming a color changeable structure 14 on the second substrate 12;
Specifically, the color changeable structure 14 may be formed by the following method:
Step S621: depositing a first transparent conductive material film on the second substrate 12, patterning the first transparent conductive material film, only keeping the part corresponding to the spacer, and removing the other parts to form a pattern of the first transparent electrode 142;
Step S622: depositing a layer of electrochromic material film on the first transparent electrode 142, then patterning the electrochromic material film, only keeping the part covered on the first transparent electrode 142, and removing other parts to form the pattern of the electrochromic layer 141;
step S623: a second transparent conductive material film is deposited on the electrochromic layer 141, and then the second transparent conductive material film is patterned to leave only a portion covering the electrochromic layer 141, and the other portion is removed to form a pattern of the second transparent electrode 142.
Specifically, the variable color structure 14 may be formed by the following method:
A first transparent conductive material film, an electrochromic material film and a second transparent conductive material film are sequentially deposited on the second substrate 12, then the first transparent conductive material film, the electrochromic material film and the second transparent conductive material film are patterned at the same time, only the part corresponding to the spacer is reserved, and the other parts are removed to form the patterns of the first transparent electrode 142, the electrochromic layer 141 and the second transparent electrode 142.
That is, the first transparent electrode 142, the electrochromic layer 141, and the second transparent electrode 142 are simultaneously patterned using a one-time patterning process.
in the embodiment of the present invention, when the color-changeable structure 14 is manufactured, an accurate alignment process is required, the alignment precision is ± 1um, and after the spacer is manufactured thereon, the spacer is just right above the color-changeable structure 14.
Step S62: forming a spacer 13 on the color-changeable structure 14, wherein the orthographic projection of the color-changeable structure 14 on the second substrate 12 is completely overlapped with the orthographic projection of the spacer 13 on the second substrate 12;
step S63: providing a first substrate 11;
step S64: the first substrate 11 and the second substrate 12 are aligned, and a liquid crystal layer is filled between the aligned first substrate 11 and the aligned second substrate 13.
Referring to fig. 5, a method for manufacturing a liquid crystal lens in the fifth embodiment includes the following steps:
Step S71: providing a second substrate 12;
step S72: forming spacers 13 on the second substrate 12;
Step S73: providing a first substrate 11;
step S74: forming a color-variable structure 14 on the first substrate 11, wherein the orthographic projection of the color-variable structure 14 on the first substrate 11 is overlapped with the orthographic projection of the spacer 13 on the first substrate 11;
specifically, the color changeable structure 14 may be formed by the following method:
Step S721: depositing a first transparent conductive material film on the first substrate 12, patterning the first transparent conductive material film, only keeping the part corresponding to the spacer 13, and removing the other parts to form a pattern of the first transparent electrode 142;
step S722: depositing a layer of electrochromic material film on the first transparent electrode 142, then patterning the electrochromic material film, only keeping the part covered on the first transparent electrode 142, and removing other parts to form the pattern of the electrochromic layer 141;
step S723: a second transparent conductive material film is deposited on the electrochromic layer 141, and then the second transparent conductive material film is patterned to leave only a portion covering the electrochromic layer 141, and the other portion is removed to form a pattern of the second transparent electrode 142.
Specifically, the variable color structure 14 may be formed by the following method:
a first transparent conductive material film, an electrochromic material film and a second transparent conductive material film are sequentially deposited on the first substrate 11, then the first transparent conductive material film, the electrochromic material film and the second transparent conductive material film are patterned at the same time, only the part corresponding to the spacer is reserved, and other parts are removed to form the patterns of the first transparent electrode 142, the electrochromic layer 141 and the second transparent electrode 142.
that is, the first transparent electrode 142, the electrochromic layer 141, and the second transparent electrode 142 are simultaneously patterned using a one-time patterning process.
step S75: the first substrate 11 and the second substrate 12 are aligned, and a liquid crystal layer is filled between the aligned first substrate 11 and the aligned second substrate 13.
in the embodiment of the present invention, when the box is aligned, accurate alignment is required, and the alignment progress is required to be ± 1um, so that the orthographic projection of the color-changeable structure 14 on the first substrate 11 after the box is aligned is overlapped with the orthographic projection of the spacer 13 on the first substrate 11.
While the foregoing is directed to the preferred embodiment of the present invention, 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 appended claims.
Claims (7)
1. A stereoscopic display apparatus, comprising: the display device comprises a display panel, a liquid crystal lens arranged on the display panel and a control module used for controlling the color-changeable structure in the liquid crystal lens to be switched between a transparent state and a black state;
The liquid crystal lens includes:
The liquid crystal display panel comprises a first substrate, a second substrate, a liquid crystal layer and a spacer, wherein the liquid crystal layer and the spacer are arranged between the first substrate and the second substrate;
the color-changeable structure is positioned between the first substrate and the second substrate, the orthographic projection of the color-changeable structure on the first substrate or the second substrate at least covers the orthographic projection of the spacer on the first substrate or the second substrate, and the color-changeable structure can be switched between a transparent state and a black state;
the control module includes:
The image detection unit is used for detecting whether the display panel displays a black picture or a white picture;
And the switching unit is used for controlling the color-changeable structure to be in a black state when the image detection unit detects that the display panel displays a black picture, and controlling the color-changeable structure to be in a transparent state when the image detection unit detects that the display panel displays a white picture.
2. the stereoscopic display apparatus according to claim 1, wherein the color changeable structure comprises an electrochromic layer and first and second transparent electrodes respectively located at both sides of the electrochromic layer, the electrochromic layer being switchable between a transparent state and a black state according to voltages applied to the first and second transparent electrodes.
3. The stereoscopic display apparatus according to claim 2, wherein the electrochromic layer is in a black state when a voltage is applied to the first and second transparent electrodes, and the electrochromic layer is in a transparent state when no voltage is applied to the first and second transparent electrodes.
4. The stereoscopic display apparatus as claimed in claim 2, wherein the first transparent electrode and the second transparent electrode have a thickness of 400-1500 Å, and the electrochromic layer has a thickness of 3000-5000 Å.
5. the stereoscopic display apparatus according to claim 2, wherein the electrochromic layer employs IrO2、Nb2O5Or TrO2and (4) preparing.
6. The stereoscopic display apparatus according to any one of claims 1 to 5,
The color-changeable structure is arranged on the shock insulator and covers the surface of the shock insulator; or
The color-changeable structure is arranged on the first substrate and covers the surface of the first substrate facing the second substrate; or
The color-changeable structure is arranged on the second substrate and covers the surface of the second substrate facing the first substrate; or
The color-changeable structure and the spacer are both positioned on the same substrate, the color-changeable structure is positioned between the spacer and the substrate, the orthographic projection of the graph of the color-changeable structure on the substrate is overlapped with the orthographic projection of the spacer on the substrate, and the substrate is the first substrate or the second substrate; or
The color-changeable structure and the spacer are both positioned on the same substrate, the color-changeable structure is positioned on one side of the spacer, which is far away from the substrate, the color-changeable structure covers the upper end part of the spacer, and the substrate is the first substrate or the second substrate; or
The color-changeable structure and the spacer are positioned on different substrates, and the orthographic projection of the graph of the color-changeable structure on the substrate on which the color-changeable structure is positioned covers the orthographic projection of the spacer on the substrate on which the color-changeable structure is positioned.
7. a display method of a stereoscopic display apparatus, for the stereoscopic display apparatus according to any one of claims 1 to 6, the method comprising:
detecting whether the display panel displays a black picture or a white picture;
And when detecting that the display panel displays a black picture, controlling the color-variable structure to be in a black state, and when detecting that the display panel displays a white picture, controlling the color-variable structure to be in a transparent state.
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