CN115166964A

CN115166964A - 3D display device and 3D display apparatus

Info

Publication number: CN115166964A
Application number: CN202210764123.7A
Authority: CN
Inventors: 李方庆; 高锦成; 陈凯; 吴旺娣
Original assignee: BOE Technology Group Co Ltd; Hefei BOE Display Lighting Co Ltd
Current assignee: BOE Technology Group Co Ltd; Hefei BOE Display Lighting Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-11

Abstract

The disclosure relates to the technical field of 3D display, and discloses a 3D display device and a 3D display device; the 3D display device includes: a first substrate base plate; the first electrode layer is arranged on one side of the first substrate and comprises a plurality of first electrodes; the adsorption layer is arranged on one side of the first electrode layer, which is far away from the first substrate base plate; the isolation layer is arranged on one side of the adsorption layer, which is far away from the first substrate base plate, and a plurality of opening parts are arranged on the isolation layer; a hydrophobic layer and a hydrophilic layer are sequentially stacked in the opening part, the hydrophobic layer comprises a plurality of hydrophobic parts, and the hydrophilic layer comprises a plurality of hydrophilic parts; the second electrode layer is arranged on one side, away from the first substrate, of the isolation layer and comprises a plurality of second electrodes, and the orthographic projections of the second electrodes on the first substrate are overlapped with the orthographic projections of the first electrodes on the first substrate; the first electrode and the second electrode apply a voltage to make the hydrophobic portion form a lens through which 3D display can be realized.

Description

3D display device and 3D display apparatus

Technical Field

The present disclosure relates to the field of 3D display technologies, and in particular, to a 3D display device and a 3D display apparatus including the same.

Background

The 3D (Dimension, linearity and Dimension) display technology is a novel display technology, and compared with the common 2D picture display technology, the 3D technology can make the picture become three-dimensional and vivid, the image is not limited on the plane of the screen any more, the image can go out of the screen as if, and audiences can feel personally on the scene. The lenticular lens technology is also called lenticular lens or micro-lenticular lens 3D technology, and has the greatest advantage that the brightness is not affected, so that the lenticular lens technology is more and more popular among users.

However, the stereoscopic effect cannot be observed conveniently only by wearing auxiliary tools such as glasses, and particularly, for people who already have myopia glasses, the glasses are painful to the utmost, and people who watch the glasses for a long time feel dizzy and dry eyes. Naked eye 3D display is becoming a development trend of future 3D display.

It is noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to overcome the above-mentioned disadvantages of the related art and to provide a 3D display device and a 3D display apparatus including the same.

According to an aspect of the present disclosure, there is provided a 3D display device including:

a first substrate base plate;

the first electrode layer is arranged on one side of the first substrate base plate and comprises a plurality of first electrodes;

the adsorption layer is arranged on one side, away from the first substrate, of the first electrode layer;

the isolation layer is arranged on one side, away from the first substrate base plate, of the adsorption layer, a plurality of opening parts are arranged on the isolation layer so that the adsorption layer is exposed, and the orthographic projection of the opening parts on the first substrate base plate is overlapped with the orthographic projection of the first electrode on the first substrate base plate;

the hydrophobic layer is arranged on one side, away from the first substrate, of the adsorption layer and comprises a plurality of hydrophobic parts, and the hydrophobic parts are positioned in the opening parts;

the hydrophilic layer is arranged on one side, away from the first substrate base plate, of the hydrophobic layer and comprises a plurality of hydrophilic parts, and the hydrophilic parts are positioned in the opening parts;

the second electrode layer is arranged on one side, away from the first substrate, of the isolation layer and comprises a plurality of second electrodes, and the orthographic projection of the second electrodes on the first substrate is overlapped with the orthographic projection of the first electrodes on the first substrate;

wherein the first electrode and the second electrode apply a voltage to make the hydrophobic portion form a lens.

In one exemplary embodiment of the present disclosure, the hydrophilicity of the adsorption layer increases as the voltage of the first electrode increases.

In one exemplary embodiment of the present disclosure, the 3D display device further includes:

and the switch units are arranged on one side of the first substrate base plate, connected with the first electrodes and used for controlling the voltage of the first electrodes.

In an exemplary embodiment of the present disclosure, the switching unit is a thin film transistor including a source electrode, and the first electrode is connected to the source electrode, or the source electrode is multiplexed as the first electrode.

In an exemplary embodiment of the present disclosure, the plurality of the hydrophobic portions includes a first hydrophobic portion, a second hydrophobic portion, and a third hydrophobic portion, the first hydrophobic portion, the second hydrophobic portion, and the third hydrophobic portion being adjacently disposed and different in color from each other.

In an exemplary embodiment of the present disclosure, the first hydrophobic portion is red, the second hydrophobic portion is green, and the third hydrophobic portion is blue.

In an exemplary embodiment of the present disclosure, the 3D display device further includes:

and the insulating sealing layer is arranged between the isolation layer and the second electrode layer.

the second substrate base plate is arranged opposite to the first substrate base plate and is positioned on one side, close to the first electrode layer, of the first substrate base plate;

the electrochromic layer is arranged on one side, close to the first substrate, of the second substrate, and comprises a plurality of electrochromic parts, and orthographic projections of the electrochromic parts on the first substrate are overlapped with orthographic projections of the second electrodes on the first substrate.

In an exemplary embodiment of the disclosure, the electrochromic layer is disposed on a side of the second electrode layer facing away from the second substrate, and an orthographic projection of the electrochromic portion on the first substrate overlaps with an orthographic projection of the second electrode on the first substrate.

According to another aspect of the present disclosure, there is provided a 3D display device including:

a 3D display device, being the 3D display device of any of the above.

The backlight source is arranged on one side, away from the first electrode, of the first substrate base plate.

According to the 3D display device, the adsorption layer, the hydrophobic part, the hydrophilic part and the second electrode are sequentially arranged on one side, away from the first substrate, of the first electrode, voltage is applied to the first electrode and the second electrode, the hydrophobic part can form a lens, and the hydrophilic part is wrapped outside the hydrophobic part; a 3D display can be realized by the lens. In addition, the wetting characteristic of the electrowetting liquid (hydrophobic part) on the solid surface is controlled by changing the applied voltage of the electrowetting liquid (hydrophobic part) -solid (adsorption layer) interface through the first electrode and the second electrode, so that the contact angle of the liquid drop (lens) is changed, the electrowetting liquid (hydrophobic part) can be diffused and contracted on the first substrate, and meanwhile, the curvature of the surface of the lens can be changed according to the difference of the applied voltage, so that the optical zooming is realized, and the adjustment of the focal length is realized. The micro-lens array is formed by electrowetting liquid (hydrophobic part), the emergent direction of light is controlled by the light refraction effect of the lens array, different parallax images are separated in space, a multi-view image observation window is formed, and the switching between 2D and 3D display modes is realized. On the other hand, the isolating layer is provided with a plurality of opening parts, the hydrophobic part and the hydrophilic part are arranged in the opening parts, a plurality of lenses arranged in an array can be formed, the structure is simple, and the cost is saved; and low power consumption and short response time.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic structural diagram of an exemplary embodiment of a 3D display device according to the present disclosure.

Fig. 2 is a schematic structural diagram of the 3D display device in fig. 1 after a lens is formed.

Fig. 3 is a schematic structural diagram of the switch unit in fig. 1.

Fig. 4 is a schematic structural diagram of a plurality of units of the 3D display device in fig. 2.

Description of the reference numerals:

11. a first substrate base plate; 12. a second substrate base plate;

21. a first electrode layer; 211. a first electrode; 22. a second electrode layer; 221. a second electrode;

3. an adsorption layer; 4. an isolation layer; 41. an opening part;

5. a hydrophobic layer; 51. a hydrophobic portion; 511. a first hydrophobic portion; 512. a second hydrophobic portion; 513. a third hydrophobic portion;

6. a hydrophilic layer; 61. a hydrophilic portion;

7. a switch unit; 71. an active layer; 72. a gate insulating layer; 73. a gate electrode; 74. an interlayer dielectric layer; 75. a source drain layer; 751. a source electrode; 752. a drain electrode; 76. a passivation layer;

8. an insulating sealing layer; 9. an electrochromic layer; 91. an electrochromic portion; 10. a lens.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as 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 concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.

In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate. "and/or" is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

The present disclosure example embodiments provide a 3D display device, which, as shown in fig. 1 to 4, may include a first substrate 11, a first electrode layer 21, an adsorption layer 3, an isolation layer 4, a hydrophobic layer 5, a hydrophilic layer 6, and a second electrode layer 22; the first electrode layer 21 is disposed on one side of the first substrate 11, and the first electrode layer 21 includes a plurality of first electrodes 211; the adsorption layer 3 is arranged on one side of the first electrode layer 21, which is far away from the first substrate base plate 11; the isolation layer 4 is arranged on one side of the adsorption layer 3, which is far away from the first substrate base plate 11, the isolation layer 4 is provided with a plurality of opening parts 41 so as to expose the adsorption layer 3, and the orthographic projection of the opening parts 41 on the first substrate base plate 11 is overlapped with the orthographic projection of the first electrode 211 on the first substrate base plate 11; the hydrophobic layer 5 is arranged on one side, away from the first substrate base plate 11, of the adsorption layer 3, the hydrophobic layer 5 comprises a plurality of hydrophobic parts 51, and the hydrophobic parts 51 are located in the opening part 41; the hydrophilic layer 6 is arranged on one side of the hydrophobic layer 5, which is far away from the first substrate 11, the hydrophilic layer 6 comprises a plurality of hydrophilic parts 61, and the hydrophilic parts 61 are positioned in the opening parts 41; the second electrode layer 22 is arranged on one side of the isolation layer 4, which is far away from the first substrate 11, the second electrode layer 22 comprises a plurality of second electrodes 221, and the orthographic projection of the second electrodes 221 on the first substrate 11 is overlapped with the orthographic projection of the first electrodes 211 on the first substrate 11; wherein the first electrode 211 and the second electrode 221 apply a voltage so that the hydrophobic portion 51 forms the lens 10.

In the 3D display device of the present disclosure, on one hand, applying a voltage to the first electrode 211 and the second electrode 221 may cause the hydrophobic portion 51 to form the lens 10, and the hydrophilic portion 61 is coated outside the hydrophobic portion 51; a 3D display can be realized by the lens 10. On the other hand, the applied voltage of the interface between the electrowetting liquid (hydrophobic part 51) and the solid (adsorption layer 3) is changed by the first electrode 211 and the second electrode 221 to control the wetting characteristic of the electrowetting liquid (hydrophobic part 51) on the solid surface, so as to change the contact angle of the liquid drop (lens 10), so that the electrowetting liquid (hydrophobic part 51) can diffuse and contract on the first substrate 11, and meanwhile, the curvature of the surface of the lens 10 can change according to the difference of the applied voltage, so as to realize optical zooming and adjust the focal length. The micro-lens 10 array is formed by adopting electrowetting liquid (the hydrophobic part 51), the emergent direction of light rays is controlled by the light ray refraction effect of the lens 10 array, different parallax images are separated spatially, a multi-view image observation window is formed, and the switching between a 2D display mode and a 3D display mode is realized. On the other hand, the isolation layer 4 is provided with a plurality of opening parts 41, the hydrophobic part 51 and the hydrophilic part 61 are arranged in the opening parts 41, a plurality of lenses 10 arranged in an array can be formed, the structure is simple, and the cost is saved; and low power consumption and short response time.

In the present example embodiment, the 3D display device may include the first substrate 11, and the material of the first substrate 11 may include an inorganic material, for example, the inorganic material may be glass, quartz, or the like. The material of the first substrate 11 may also include an organic material, and for example, the organic material may be a resin-based material such as polyimide, polycarbonate, polyacrylate, polyetherimide, polyethersulfone, polyethylene terephthalate, and polyethylene naphthalate. The first substrate 11 may be formed by a plurality of material layers, for example, the first substrate 11 may include a plurality of base layers, and the material of the base layers may be any one of the above materials. Of course, the first substrate 11 may be provided as a single layer, and may be any one of the above materials.

In the present example embodiment, the first electrode layer 21 is provided at one side of the first substrate base plate 11, and the first electrode layer 21 may include a plurality of first electrodes 211. The material of the first electrode layer 21 may be a transparent material, for example, the first electrode layer 21 may be ITO (indium tin oxide), IZO (indium zinc oxide), or the like.

In addition, in some other example embodiments of the present disclosure, a plurality of switch units 7 arranged in an array are further disposed on one side of the first substrate 11, and the switch units 7 may be thin film transistors.

Specifically, as shown in fig. 3, the active layer 71 is provided on one side of the first substrate 11, the active layer 71 may include a channel portion and conductor portions provided at both ends of the channel portion, a gate insulating layer 72 is provided on one side of the active layer 71 away from the first substrate 11, a gate electrode 73 is provided on one side of the gate insulating layer 72, an interlayer dielectric layer 74 is provided on one side of the gate electrode 73 away from the first substrate 11, and a through hole is provided in the interlayer dielectric layer 74 to communicate with the conductor portion; a source drain layer 75 is disposed on a side of the interlayer dielectric layer 74 away from the first substrate 11, the source drain layer 75 may include a data line, a source 751 and a drain 752, the data line may be connected to the drain 752, and the source 751 and the drain 752 are respectively connected to two conductor portions through two through holes. A passivation layer 76 is provided on the source and drain

electrodes

751 and 752 on a side away from the first substrate 11, and a through hole is provided on the passivation layer 76 to be connected to the source electrode 751 through the through hole. The active layer 71, the gate electrode 73, the source electrode 751, and the drain electrode 752 form a thin film transistor.

It should be noted that the thin film transistor described in this specification is a top gate thin film transistor, and in other example embodiments of the present disclosure, the thin film transistor may also be a bottom gate type or a dual gate type, and details of the specific structure thereof are not described herein again. In addition, when thin film transistors with opposite polarities are used, or when the direction of current flow during circuit operation changes, the functions of the "source 751" and the "drain 752" may be interchanged. Therefore, in this specification, "source 751" and "drain 752" may be interchanged with each other.

The first electrode layer 21 may be disposed on a side of the passivation layer 76 facing away from the first substrate 11, and the first electrode 211 may be connected to the source electrode 751 through a via hole on the passivation layer 76.

Of course, the area of the source electrode 751 can be set to be large, the source electrode 751 can be multiplexed into the first electrode 211, and the first electrode layer 21 is not additionally provided, so that the process steps are reduced, and the cost is reduced.

The voltage on the first electrode 211 can be controlled by the switch unit 7, respectively, and not only can whether the voltage is applied to the first electrode 211 be controlled, thereby controlling whether the hydrophobic part 51 forms the lens 10; and the magnitude of the voltage on the first electrode 211 can be controlled to control the curvature of the surface of the lens 10 formed by the hydrophobic portion 51.

In the present exemplary embodiment, the adsorption layer 3 is arranged on the side of the first electrode layer 21 facing away from the first substrate 11, and the adsorption layer 3 completely covers the first electrode layer 21, i.e. the adsorption layer 3 may be arranged in a full layer.

The material of the adsorption layer 3 is a hydrophobic insulating material. For example, the adsorption layer 3 may be silicon nitride. The surface hydrophilicity and hydrophobicity of the adsorption layer 3 are changed under the state of voltage application, and the adsorption layer becomes more hydrophilic; further, as the applied voltage increases, the hydrophilicity of the adsorption layer 3 also increases.

In the present exemplary embodiment, the isolation layer 4 is provided on the side of the adsorption layer 3 away from the first substrate 11, and the isolation layer 4 is provided with a plurality of openings 41; the opening 41 is communicated to the adsorption layer 3 to expose a part of the adsorption layer 3. The orthographic projection of the opening part 41 on the first substrate 11 overlaps with the orthographic projection of the first electrode 211 on the first substrate 11, for example, the orthographic projection of the opening part 41 on the first substrate 11 covers and is larger than the orthographic projection of the first electrode 211 on the first substrate 11, so that the volume of the accommodated hydrophobic part 51 can be larger, and therefore the hydrophobic part 51 can form a larger contact angle conditionally, which is beneficial to the 3D display effect; of course, the orthographic projection of the opening 41 on the first substrate 11 may overlap the orthographic projection of the first electrode 211 on the first substrate 11, or a part of the orthographic projection of the opening 41 on the first substrate 11 may overlap a part of the orthographic projection of the first electrode 211 on the first substrate 11. The isolation layer 4 is an insulating material, and the material of the isolation layer 4 may be selected from organic materials, for example, the material of the isolation layer 4 may be the material for making a black matrix.

In the present exemplary embodiment, the water-repellent layer 5 is provided on the side of the adsorption layer 3 facing away from the first substrate 11, and the water-repellent layer 5 may include a plurality of water-repellent portions 51, the water-repellent portions 51 being located within the opening portions 41; so that the orthographic projection of the hydrophobic part 51 on the first substrate 11 overlaps with the orthographic projection of the first electrode 211 on the first substrate 11, for example, the orthographic projection of the hydrophobic part 51 on the first substrate 11 covers and is larger than the orthographic projection of the first electrode 211 on the first substrate 11, of course, the orthographic projection of the hydrophobic part 51 on the first substrate 11 overlaps with the orthographic projection of the first electrode 211 on the first substrate 11, or a part of the orthographic projection of the hydrophobic part 51 on the first substrate 11 overlaps with a part of the orthographic projection of the first electrode 211 on the first substrate 11.

The hydrophobic layer 5 may be a conductive liquid, for example, the hydrophobic layer 5 may be a metallic ink, which is an ink system using micron-sized metal flakes, stabilizers, organic solvents, etc. in coordination; the ink has high reflectivity, and different metal inks can be prepared by mixing different metal flakes, such as gold, silver, copper, aluminum or alloy powder.

Of course, in other exemplary embodiments of the present disclosure, the hydrophobic layer 5 may also be other hydrophobic liquid materials, which are not necessarily illustrated here.

Since the water-repellent layer 5 is a liquid, when no current is applied, the orthographic projection of the water-repellent portion 51 on the first substrate 11 coincides with the orthographic projection of the opening 41 on the first substrate 11.

One hydrophobic portion 51 is provided as one sub-pixel. The plurality of hydrophobic portions 51 may transmit white light.

Under the condition that hydrophobic portion 51 can see through white light, can set up various rete in one side that hydrophobic layer 5 deviates from first substrate base plate 11, change the colour of light through various rete, reach the color display.

Further, referring to fig. 4, the plurality of hydrophobic portions 51 may include a first hydrophobic portion 511, a second hydrophobic portion 512, and a third hydrophobic portion 513, and the first hydrophobic portion 511, the second hydrophobic portion 512, and the third hydrophobic portion 513 are adjacently disposed and have different colors from each other. For example, the first hydrophobic portion 511 may be red, the second hydrophobic portion 512 may be green, and the third hydrophobic portion 513 may be blue. A first hydrophobic portion 511 may be a red sub-pixel, a second hydrophobic portion 512 may be a green sub-pixel, and a third hydrophobic portion 513 may be a blue sub-pixel. The hydrophobic layer 5 can be reused as a color film layer, light rays are emitted as red light rays after passing through the first hydrophobic part 511, light rays are emitted as green light rays after passing through the second hydrophobic part 512, and light rays are emitted as blue light rays after passing through the third hydrophobic part 513. Of course, in some other exemplary embodiments of the present disclosure, a fourth hydrophobic portion 51 may be further provided, the fourth hydrophobic portion 51 may be white, one fourth hydrophobic portion 51 may be a white sub-pixel, and light passes through the fourth hydrophobic portion 51 and is emitted as white light.

Dyes (pigments) with different colors are added into the metal ink, so that the metal ink with different colors can be prepared. The deionized water has bright color.

In the present exemplary embodiment, the hydrophilic layer 6 is provided on the side of the water-repellent layer 5 facing away from the first substrate base 11, and the hydrophilic layer 6 may include a plurality of hydrophilic portions 61, the hydrophilic portions 61 being located within the opening portions 41; so that the orthographic projection of the hydrophilic portion 61 on the first substrate 11 overlaps with the orthographic projection of the first electrode 211 on the first substrate 11, for example, the orthographic projection of the hydrophilic portion 61 on the first substrate 11 covers and is larger than the orthographic projection of the first electrode 211 on the first substrate 11, of course, the orthographic projection of the hydrophilic portion 61 on the first substrate 11 overlaps with the orthographic projection of the first electrode 211 on the first substrate 11, or a part of the orthographic projection of the hydrophilic portion 61 on the first substrate 11 overlaps with a part of the orthographic projection of the first electrode 211 on the first substrate 11.

The hydrophilic layer 6 may be a non-conductive liquid, for example, the hydrophilic layer 6 may be deionized water. Of course, in other exemplary embodiments of the present disclosure, the hydrophilic layer 6 may also be other hydrophilic liquid materials, which are not necessarily illustrated here.

Since the hydrophilic layer 6 is a liquid, when no electricity is applied, the orthographic projection of the hydrophilic portion 61 on the first substrate 11 coincides with the orthographic projection of the opening 41 on the first substrate 11.

Since the hydrophilic layer 6 and the hydrophobic layer 5 are opposite in hydrophilicity, the hydrophilic layer 6 and the hydrophobic layer 5 are not mixed together; moreover, since the density of the hydrophobic layer 5 is greater than that of the hydrophilic layer 6, the hydrophobic layer 5 is always positioned below the hydrophilic layer 6, so that the hydrophobic layer 5 is in contact with the adsorption layer 3, and the hydrophilic layer 6 can cover the hydrophobic layer 5.

In the present exemplary embodiment, an insulating sealing layer 8 is provided on a side of the isolation layer 4 away from the first substrate 11, and the insulating sealing layer 8 seals the opening portion 41 on the isolation layer 4, so that a sealed chamber is formed in the opening portion 41, and the hydrophilic layer 6 and the hydrophobic layer 5 are prevented from flowing out from the opening portion 41. The insulating sealing layer 8 can be made of SiNx or SiO2; or a mixture of SiNx and SiO 2.

In the present exemplary embodiment, the second electrode layer 22 is disposed on a side of the insulating sealing layer 8 away from the first substrate 11, and the second electrode layer 22 may be made of a transparent conductive material, for example, the second electrode layer 22 may be ITO (indium tin oxide), IZO (indium zinc oxide), indium gallium zinc oxide, or the like.

The second electrode layer 22 may include a plurality of second electrodes 221, an orthographic projection of the second electrodes 221 on the first substrate 11 overlaps with an orthographic projection of the first electrodes 211 on the first substrate 11, for example, the orthographic projection of the second electrodes 221 on the first substrate 11 and the orthographic projection of the first electrodes 211 on the first substrate 11 may overlap, so that the second electrodes 221 and the first electrodes 211 may form an electric field facing each other, so that the change of the hydrophilicity of the adsorption layer 3 is uniform, and the formed lens 10 is symmetrical. Of course, the orthographic projection of the second electrode 221 on the first substrate 11 may also cover and be larger than the orthographic projection of the first electrode 211 on the first substrate 11, or the orthographic projection of the first electrode 211 on the first substrate 11 covers and is larger than the orthographic projection of the second electrode 221 on the first substrate 11, and likewise, the change of the hydrophilicity of the adsorption layer may be uniform, and the formed lens 10 is symmetrical.

The voltage range of the second electrode 221 is 0 to 32V, which is a safe voltage range.

Referring to fig. 1, when no voltage is applied to the first electrode 211 and the second electrode 221, the surface of the adsorption layer 3 is hydrophobic and oleophilic, the hydrophobic portion 51 (metal ink) covers the surface of the adsorption layer 3, and the hydrophilic portion 61 (deionized water) covers the surface of the hydrophobic portion 51.

Referring to fig. 2, when a voltage is applied to the first electrode 211 and the second electrode 221, wettability of the water-repellent portion 51 on the adsorption layer is changed, that is, a contact angle θ between the water-repellent portion 51 and the adsorption layer 3 is changed, and the water-repellent portion 51 is deformed (contracted) and displaced to form the lens 10, so that 3D display is realized, and switching between 2D display and 3D display is realized by whether or not current is applied. And the larger the voltage, the larger the contraction degree of the water-repellent section 51, the smaller the radius of curvature of the formed lens 10, and the radius of curvature of the lens 10 is R, then the volume V of the water-repellent section can be obtained from the Young's equation ₀ Comprises the following steps:

by wetting is meant the process of replacing one fluid (hydrophobic portion 51) of the solid surface with another fluid (hydrophilic portion 61). The liquid can spread on the solid surface, and the solid-liquid contact surface has a tendency of expansion, namely the adhesive force of the liquid to the solid surface is greater than the cohesive force of the liquid, namely wetting. The liquid can not spread on the solid surface, and the contact surface has the tendency of shrinking into a spherical shape, namely, the liquid is not wetted, or the liquid has smaller adhesive force to the solid surface than the cohesive force.

The plurality of hydrophobic portions 51 form a microlens array, and the light refraction effect of the microlens array controls the emitting direction of light, so that different parallax images are spatially separated, and a multi-view image observation window is formed to realize 3D display.

The 3D display device is disposed on a display panel, and 3D display can be achieved by the formed lens 10. One lens 10 may be formed to be disposed opposite to a plurality of sub-pixels on the display panel.

With above-mentioned 3D display device setting on display panel, and set up hydrophobic portion 51 to the structure that includes first hydrophobic portion 511, second hydrophobic portion 512 and third hydrophobic portion 513, not only can realize the 3D demonstration, can replace the color film layer through this 3D display device moreover, display panel can not set up the color film layer promptly, a lens 10 of formation can with a subpixel on the display panel relative setting.

In the present exemplary embodiment, an electrochromic layer 9 is provided on the side of the insulating seal layer 8 facing away from the first substrate 11, specifically the electrochromic layer 9 is provided between the insulating seal layer 8 and the second electrode layer 9. The electrochromic layer 9 may employ electrochromic materials such as: WO3, MO3, niOx, V2O5, tiO2, etc., the electrochromic layer 9 is black and opaque in the absence of voltage; at high voltage, the electrochromic layer 9 is a transparent layer. The principle of electrochromism is that the electrochromism material generates electrochemical oxidation-reduction reaction under the action of an external electric field, and the color of the material is changed through electron gain and loss. Electrochromism refers to a phenomenon that optical properties (reflectivity, light transmittance, absorption rate and the like) of a material are subjected to stable and reversible color change under the action of an external electric field, and the electrochromism is represented as reversible change of color and transparency in appearance. The electrochromic layer 9 of the present disclosure is mainly a change in light transmittance.

Also, the electrochromic layer 9 may include a plurality of electrochromic portions 91, and an orthographic projection of the electrochromic portions 91 on the first substrate 11 may overlap with an orthographic projection of the first and second electrodes 211221 on the first substrate 11, for example, an orthographic projection of the electrochromic portions 91 on the first substrate 11 and an orthographic projection of the first and second electrodes 211221 on the first substrate 11 may overlap.

So that the second electrode 221 can uniformly supply power to the electrochromic part 91 so that the variation of the light transmittance of the electrochromic part 91 is uniform. Of course, the orthographic projection of the second electrode 221 on the first substrate 11 may also cover and be larger than the orthographic projection of the electrochromic part 91 on the first substrate 11, and likewise, the second electrode 221 may uniformly supply power to the electrochromic part 91, so that the change of the light transmittance of the electrochromic part 91 is uniform.

Of course, in some other exemplary embodiments of the present disclosure, the orthographic projection of the second electrode 221 on the first substrate 11 and the orthographic projection of the electrochromic part 91 on the first substrate 11 may partially overlap, and power may be supplied to the electrochromic part 91 to change the light transmittance of the electrochromic part 91.

In addition, in some of the disclosed example embodiments, the second electrode layer 22 may be disposed on a side of the electrochromic layer 9 close to the first substrate 11, i.e., the second electrode layer 22 is located between the electrochromic layer 9 and the insulating sealing layer 8.

When a voltage is applied to the second electrode 221, the light transmittance of the electrochromic part 91 is increased so that light can pass through, and the higher the voltage is, the higher the light transmittance is, the higher the intensity of the transmitted light is, so that the control of gray scale of each pixel is realized through the second electrode 221 and the electrochromic part 91; in this case, the 3D display device may function as a display device.

In the present exemplary embodiment, the second substrate 12 is provided on a side of the second electrode layer 22 facing away from the first substrate 11, and the material of the second substrate 12 may include an inorganic material, for example, the inorganic material may be glass, quartz, or the like. The material of the second substrate 12 may also include an organic material, and for example, the organic material may be a resin-based material such as polyimide, polycarbonate, polyacrylate, polyetherimide, polyethersulfone, polyethylene terephthalate, and polyethylene naphthalate. The second substrate 12 may be formed of multiple material layers, for example, the second substrate 12 may include multiple base layers, and the material of the base layers may be any one of the above materials. Of course, the second substrate 12 may be provided as a single layer, and may be any one of the above materials.

The second substrate 12 may protect the underlying second electrode layer 22 from insulation.

Based on the same inventive concept, the disclosed example embodiments provide a 3D display apparatus, and the 3D display apparatus may include the 3D display device of any one of the above. The specific structure of the 3D display device has been described in detail above, and therefore, the detailed description thereof is omitted.

In this example embodiment, the 3D display device may further include a backlight source, which is disposed on a side of the first substrate base plate 11 facing away from the first electrode layer 21.

Specifically, the backlight may include a light guide plate and a light source, the light guide plate may be disposed in parallel with the first substrate 11 and on a side of the first substrate 11 away from the first electrode layer 21, and the light source may be disposed on a side of the light guide plate away from the first substrate 11 or on a side of the light guide plate perpendicular to a surface of the light guide plate close to the first substrate 11. The light emitted by the light source is more uniform after passing through the light guide plate.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A3D display device, comprising:

a first base substrate;

the adsorption layer is arranged on one side of the first electrode layer, which is far away from the first substrate base plate;

the hydrophilic layer is arranged on one side, away from the first substrate base plate, of the hydrophobic layer and comprises a plurality of hydrophilic parts, and the hydrophilic parts are located in the opening parts;

2. The 3D display device according to claim 1, wherein the hydrophilicity of the adsorption layer increases as the voltage of the first electrode increases.

3. The 3D display device according to claim 1, wherein the 3D display device further comprises:

4. The 3D display device according to claim 3, wherein the switching unit is a thin film transistor comprising a source electrode to which the first electrode is connected, or the source electrode is multiplexed as the first electrode.

5. The 3D display device according to claim 1, wherein the plurality of the hydrophobic portions include a first hydrophobic portion, a second hydrophobic portion, and a third hydrophobic portion, the first hydrophobic portion, the second hydrophobic portion, and the third hydrophobic portion being adjacently disposed and different in color from each other.

6. The 3D display device of claim 5, wherein the first hydrophobic portion is red, the second hydrophobic portion is green, and the third hydrophobic portion is blue.

7. The 3D display device according to claim 1, wherein the 3D display device further comprises:

8. The 3D display device according to claim 1, wherein the 3D display device further comprises:

9. A 3D display device as claimed in claim 8, characterized in that the electrochromic layer is provided on a side of the second electrode layer facing away from the second substrate, an orthographic projection of the electrochromic portion on the first substrate overlapping an orthographic projection of the second electrode on the first substrate.

10. A3D display device, comprising:

a 3D display device, being the 3D display device of any one of claims 1 to 9;