CN102213835B - Active switch type three-dimensional display lens and active switch type three-dimensional display spectacles - Google Patents

Abstract

The invention discloses an active switch type three-dimensional display lens, which comprises a front glass substrate, a rear glass substrate, a peripheral weir, a front transparent electrode, a rear transparent electrode, colored non-polar oil droplets, at least two hydrophilic medium layers, at least Two hydrophobic medium layers and at least two inner cofferdams; the peripheral dam is arranged between the front glass substrate and the rear glass substrate and forms a closed chamber; the front transparent electrode, the rear transparent electrode, the hydrophilic medium layer and the hydrophobic A dielectric layer and colored non-polar oil droplets are located inside the chamber. The invention also discloses an active switch type three-dimensional display glasses using the above-mentioned active switch type three-dimensional display lens. The invention does not have the strict requirements on the orientation of the lens of the liquid crystal switch type lens or the polarizer lens, that is, overcomes the shortcoming that the observation effect is closely related to the observation angle. In addition, the present invention not only has nothing to do with the display quality of the three-dimensional image and the observation position and the rotation of the head, but also has little crosstalk.

Description

Active switch type 3D display lens and active switch type 3D display glasses

technical field

The invention relates to a three-dimensional stereoscopic lens and a kind of three-dimensional stereoscopic glasses, in particular to an active switch type three-dimensional display lens and an active switch type three-dimensional display glasses.

Background technique

At present, glasses used for three-dimensional display mainly include liquid crystal switch lenses and polarizer lenses. The left and right eyes of the polarizer glasses use polarizing lenses with different polarization directions corresponding to the corresponding polarization directions of the left and right eye images, so that the left and right eyes can only see the corresponding left and right eye images respectively, and through the fusion of the left and right eyes, a three-dimensional image can be observed. The liquid crystal switch lens is for the content displayed in each frame to correspond to the left and right images, and the left and right eyes are switched to the left and right eyes respectively through the liquid crystal switch lens. The advantage of the polarizer type glasses is that the structure is simple and the cost is low. However, polarizer glasses lose resolution, have large crosstalk, and are closely related to the observation position, so the actual observation effect is not good. Since the liquid crystal switch type lens only displays the left image or the right image in each frame, the frame rate is halved during the realization process. It has the advantage of no loss of resolution and low crosstalk; however, when the liquid crystal switch lens is used in a three-dimensional liquid crystal display, since the light passing through the liquid crystal cell is polarized, it is affected by the polarization direction of the liquid crystal glasses. The requirements for the observation position are very strict, and a slight turn of the head will affect the viewing effect.

Contents of the invention

The technical problem to be solved by the present invention is to provide an active switch type 3D display that can be applied to any common 3D display with little crosstalk and whose 3D image display quality has nothing to do with the observation position and head rotation. The invention discloses a display lens and an active switch type three-dimensional display glasses.

In order to solve the above technical problems, the technical solution adopted by the present invention is: an active switch type three-dimensional display lens, including a front glass substrate, a rear glass substrate, a peripheral weir, a front transparent electrode, a rear transparent electrode, colored nonpolar oil droplets , at least two hydrophilic medium layers, at least two hydrophobic medium layers and at least two inner cofferdams;

The peripheral weir is arranged between the front glass substrate and the rear glass substrate and forms a closed chamber; the front transparent electrode, the rear transparent electrode, the hydrophilic medium layer and the hydrophobic medium layer and the colored nonpolar oil droplets are located in the chamber;

The first transparent electrode is arranged on the upper surface of the chamber and covers the entire upper surface of the chamber, and the rear transparent electrode is arranged on the lower surface of the chamber and covers the entire lower surface of the chamber;

The inner cofferdam is arranged on the rear transparent electrode, the hydrophobic medium layer is arranged on the surface of the rear transparent electrode and is located in the inner cofferdam, the colored non-polar oil droplet is located in the inner cofferdam and is arranged on the surface of the hydrophobic medium layer, and the hydrophilic medium layer is also It is arranged on the surface of the rear transparent electrode and is located in the inner cofferdam, the hydrophilic medium layer is located between the inner edge of the inner cofferdam and the outer edge of the hydrophobic medium layer, and the hydrophilic medium layer and the hydrophobic medium layer are in the same plane, The ratio of the width of the hydrophobic medium layer to the width of the hydrophilic medium layer is greater than 10:1; the rest of the chamber is filled with water.

The working principle of the active switch type three-dimensional display lens of the present invention is: using the electrowetting effect on the transparent medium, by applying different voltages to adjust the hydrophobic characteristics of the surface of the medium layer, making it change from hydrophobic to hydrophilic, thereby controlling the colored oil droplets The size of the covered media layer area. Due to the existence of the hydrophilic medium layer, relying on the effect of surface tension, the aggregated oil droplets move towards the hydrophilic medium layer, that is, towards the edge of the chamber. So that the light transmission of the whole lens is better.

As a further improved technical solution of the present invention, the inner cofferdams are closely arranged to form a matrix arrangement and cover all surfaces in the chamber.

As a further improved technical solution of the present invention, the section of the inner cofferdam is a rectangle, a square, a rhombus, or a regular hexagon.

As a further improved technical solution of the present invention, the colored non-polar oil droplets are composed of carbon black or carbon nanotubes with a particle size of 5-1000 nanometers dispersed in silicone oil.

As a further improved technical solution of the present invention, the front glass substrate and the rear glass substrate are transparent plates of glass, polycarbonate, polymethacrylate or polyethylene phthalate with a thickness of 0.01 to 3 mm or film.

As a further improved technical solution of the present invention, the front transparent electrode and the rear transparent electrode are indium tin oxide or zinc oxide transparent films with a thickness of 10-1000 nanometers.

An active switch type three-dimensional display glasses, including a frame, lenses mounted on the frame, a synchronous controller, and a synchronous controller installed on the frame and used to receive infrared signals sent by an infrared generator and control the voltage applied to the lenses at the same time The size of the infrared receiver, the synchronous controller is electrically connected with the infrared generator and used to control the infrared generator, and the lens is the above-mentioned active switch type three-dimensional display lens.

The working principle of the active switch type three-dimensional display glasses of the present invention is: the control signal generated by the synchronous driver is synchronized with the frame synchronization control signal of the drive controller in the display, and the left and right eye control signals are applied frame by frame to the infrared signal generator, and the glasses After the infrared receiver installed on the camera receives the corresponding signal, it controls the opening and closing of the left and right lenses respectively, so that the left and right eye images pass through the left and right lenses respectively, and the left and right are fused by the human eyes to form a corresponding three-dimensional image. That is, the present invention displays the corresponding left and right eye images of the three-dimensional image frame by frame on any kind of display, installs an infrared radiation device on this display, and according to the frame synchronization signal of the display and the corresponding left eye or right eye image, The infrared radiation device applies control signals so that the images output by the display are displayed in sequence according to the left and right eye images, and then the glasses are controlled by the infrared receiver on the glasses, so that the left or right eyes receive the corresponding image content respectively, so as to realize three-dimensional display .

The active switch type three-dimensional display lens of the present invention adopts transparent front glass substrate and rear glass substrate and transparent front transparent electrode and rear transparent electrode. Requirements, that is, to overcome the shortcoming that its observation effect is closely related to the observation angle. In other words, when the present invention is in use, the three-dimensional image display quality has nothing to do with the observation position and head rotation; in addition, the present invention utilizes the electrowetting effect on the transparent medium to adjust the hydrophobicity of the surface of the medium layer by applying different voltages, making it Hydrophobic is transformed into hydrophilic, so as to control the size of the area of the medium layer covered by colored oil droplets. Therefore, the present invention has less crosstalk for general liquid crystal switch lenses or polarizer lenses. In a word, the present invention not only has three-dimensional image display quality irrelevant to observation position and head rotation, but also has little crosstalk. In addition, the manufacturing process of the present invention is simple and the cost is low, and it is suitable for any common three-dimensional display.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of the active switch type three-dimensional display lens in embodiment 1 in an open state.

Fig. 2 is a top view structural diagram of the active switch type three-dimensional display lens in the open state of the first embodiment.

Fig. 3 is a schematic cross-sectional structure diagram of the active switch type three-dimensional display lens in the off state of the first embodiment.

FIG. 4 is a top view structural diagram of the active-switching three-dimensional display lens in embodiment 1 in an off state.

FIG. 5 is a schematic diagram of the working principle of the active switch type 3D display glasses in Embodiment 2. FIG.

Detailed ways

Example 1

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the active switch type three-dimensional display lens includes a front glass substrate 1, a rear glass substrate 2, a peripheral weir 3, a front transparent electrode 4, a rear transparent electrode 5, a colored nonpolar Oil droplets 8, at least two hydrophilic medium layers 9, at least two hydrophobic medium layers 7 and at least two inner cofferdams 13; the peripheral weirs 3 are arranged between the front glass substrate 1 and the rear glass substrate 2 and form Closed chamber 6, the number of chambers 6 is related to the size of the lens, each chamber 6 is regarded as a small unit, its area shall not be greater than 1mm*1mm; front transparent electrode 4, rear transparent electrode 5, hydrophilic medium layer 9 and The hydrophobic medium layer 7 and the colored non-polar oil droplets 8 are located in the chamber 6;

The first transparent electrode 4 is arranged on the upper surface 6-1 of the chamber 6 and covers the entire upper surface of the chamber 6, and the rear transparent electrode 5 is arranged on the lower surface 6-2 of the chamber 6 and covers the entirety of the chamber 6 lower surface;

The inner cofferdam 13 is arranged on the rear transparent electrode 5, the hydrophobic medium layer 7 is arranged on the surface of the rear transparent electrode 5 and is located in the inner cofferdam 13, and the colored non-polar oil droplet 8 is located in the inner cofferdam 13 and is arranged in the hydrophobic medium layer 7 surface, the hydrophilic medium layer 9 is also arranged on the rear transparent electrode (5) surface and is located in the inner cofferdam 13, and the hydrophilic medium layer 9 is located between the inner edge of the inner cofferdam 13 and the outer edge of the hydrophobic medium layer 5 Between, the hydrophilic medium layer 9 and the hydrophobic medium layer 7 are in the same plane, and the ratio of the width of the hydrophobic medium layer 7 to the width of the hydrophilic medium layer 9 is greater than 10:1; the rest of the chamber 6 is filled with water.

The inner cofferdams 13 are closely arranged to form a matrix arrangement and cover the entire surface of the hydrophobic medium layer 7 inside the chamber 6 . The cross-section of the inner cofferdam 17 may be rectangular, square, rhombus, regular hexagonal, or other seamlessly joined polygons. In this embodiment, it is a square.

The colored non-polar oil droplets 8 are composed of carbon black or carbon nanotubes with a particle diameter of 5-1000 nanometers dispersed in silicone oil. The front glass substrate 1 and the rear glass substrate 2 are transparent plates or films of glass, polycarbonate, polymethacrylate or polyethylene phthalate with a thickness of 0.01-3 mm. The front transparent electrode 4 and the rear transparent electrode 5 are indium tin oxide or zinc oxide transparent films with a thickness of 10-1000 nanometers. The hydrophilic layer can be made of AZ4620 photoresist with a thickness of 3-6 microns. The hydrophobic medium layer can be made of Teflon with a thickness of 0.6-0.8 microns. The cofferdam can be made of polydimethylsiloxane (PDMS) frame with a thickness of 1-6 mm.

The specific working principle of this embodiment is shown in Figure 3 and Figure 4: when no voltage is applied between the front transparent electrode and the rear transparent electrode, a colored oil drop, that is, a colored non-polar oil drop, will automatically spread on the water between the surface of the hydrophobic layer and the surface of the hydrophobic medium layer, because at the micron scale, the surface tensions of the surface of the hydrophobic layer and the surface of the hydrophilic layer satisfy equations 1 and 2, respectively

γ _i,o +γ _w,o <γ _i,w 1

γ _{iw, w} + γ _{o, w} < γ _{iw, o} 2

Where γ is the surface tension; the subscripts w, o, i and iw represent water, oil, the surface of the hydrophobic medium layer and the surface of the hydrophilic medium layer, respectively. Therefore, at the interface between the hydrophilic medium layer and the hydrophobic medium layer, water will directly contact the surface of the hydrophilic medium layer, thereby forming an oil-water interface as shown in Figure 3. When visible light is incident on the rear transparent glass substrate from the front of the lens, part of the spectrum of visible light is absorbed by the oil droplets, and the transmission spectrum is mainly concentrated near the color spectrum of the oil droplets. At this time, the lens is in the "off" state. As shown in Figure 1 and Figure 2: when a certain voltage is applied between the front transparent electrode and the rear transparent electrode, the original balance is broken. The applied voltage will cause the surface tension between the oil droplet and the hydrophobic medium layer to change, and the change is γ _ew which can be obtained by Lippmann's formula. As the applied voltage increases, when the

γ _{i, o} + γ _{w, o} > γ _{i, w} - γ _ew 3

, the oil droplets will not completely cover the entire lens, and the transparent water will displace some of the oil droplets and directly contact the hydrophobic medium layer, thus forming a three-phase interface of water, oil droplets and hydrophobic medium layer as shown in Figure 1. As the voltage increases, in order to maintain the energy balance of the system, the three-phase contact angle θ of the water droplet will become smaller, the contact area between the water droplet and the hydrophobic medium layer will become larger, and the oil droplet will bulge. At this time, when visible light is incident on the rear transparent glass substrate from the front of the lens, the visible light is directly transmitted out of the lens through the rear transparent glass substrate not covered by oil droplets, transparent water and the front transparent glass substrate. At this time, the lens is in the "on" state.

Example 2

Referring to Fig. 5, the active switch type 3D display glasses using the above-mentioned active switch type 3D display lens as the lens 11 include a frame 10, a synchronous controller 15, and are installed on the frame and are used to receive the infrared light emitted by the infrared generator 16. The signal simultaneously controls the infrared receiver 12 of the magnitude of the voltage applied to the lens 11 , the lens 11 is installed on the frame 10 , and the synchronous controller 15 is electrically connected with the infrared generator 16 and is used to control the infrared generator 16 .

The specific working principle of the active switch type three-dimensional display glasses is as shown in Figure 5, the image or video of the left eye or the right eye corresponding to the three-dimensional image or video is displayed frame by frame on the display 14; Infrared generator 16, the image or video displayed in the current frame is the left eye image, then the infrared generator 16 sends a corresponding pulse to the infrared signal receiver 12 installed on the frame 10 of the active switch type three-dimensional display glasses, the infrared signal receiver 12 controls the active switch type three-dimensional display lens 11 according to the received signal, and applies corresponding voltages to the left and right lenses to turn them on or off. If the infrared signal receiver 12 received the left-eye signal, a positive voltage was applied to the left-eye lens, and 0 voltage was applied to the right-eye lens, so that the left-eye lens of the corresponding eye was turned on, and the right-eye lens was turned off; If it is the right eye image, then apply 0 voltage to the left eye lens, and apply positive voltage to the right eye lens, and the right eye lens of the corresponding eye will be turned on, and the left eye lens will be turned off; this cycle repeats so that the left eye or right eye accepts the left eye at the current moment. Or the image content of the right eye, and the right eye or the left eye receives the image content of the right eye or the left eye at the next moment, so as to realize three-dimensional display.

Claims (4)

1. switching regulator 3-D display glasses initiatively, comprise mirror holder (10), be installed in the eyeglass (11) on the mirror holder (10), isochronous controller (15) and to be installed in mirror holder (10) upper and be used for receiving the infrared remote receiver (12) that infrared signal that infrared emittance (16) sends is controlled the size that is applied to the voltage on the eyeglass simultaneously, isochronous controller (15) is electrically connected with infrared remote receiver (12) and exports simultaneously control signal to infrared remote receiver (12) for the detection signal that receives infrared remote receiver (12), and it is characterized in that: eyeglass (11) comprises front glass substrate (1), rear glass substrate (2), outer cofferdam (3), front transparency electrode (4), rear transparency electrode (5), coloured nonpolar oil droplet (8), at least two hydrophilic medium layers (9), at least two hydrophobic medium layers (7) and at least two interior cofferdam (13);

Described outer cofferdam (3) is arranged between front glass substrate (1) and the rear glass substrate (2) and forms the chamber (6) of sealing;

Front transparency electrode (4), rear transparency electrode (5), hydrophilic medium layer (9) and hydrophobic medium layer (7) and coloured nonpolar oil droplet (8) are positioned at chamber (6);

It is upper and cover whole upper surfaces of chamber (6) that front transparency electrode (4) is arranged on the upper surface (6-1) of chamber (6), and it is upper and cover whole lower surfaces of chamber (6) that rear transparency electrode (5) is arranged on the lower surface (6-2) of chamber (6); Described coloured nonpolar oil droplet (8) is that carbon black or the carbon nanotube dispersed of 5～1000 nanometers consists of in silicone oil by particle diameter

Interior cofferdam (13) is arranged on the rear transparency electrode (5), hydrophobic medium layer (7) is arranged on rear transparency electrode (5) surface and is positioned at cofferdam (13), coloured nonpolar oil droplet (8) is positioned at cofferdam (13) and is arranged on hydrophobic medium layer (7) surface, hydrophilic medium layer (9) also is arranged on rear transparency electrode (5) surface and is positioned at cofferdam (13), described hydrophilic medium layer (9) is positioned between the outward flange of the inward flange in cofferdam (13) and hydrophobic medium layer (7), hydrophilic medium layer (9) is in the same plane with hydrophobic medium layer (7), and the ratio of the width of the width of hydrophobic medium layer (7) and hydrophilic medium layer (9) is greater than 10:1; The remainder of chamber (6) is full of water;

Close-packed arrays forms matrix form and arranges and cover the interior all surfaces of chamber (6) between the interior cofferdam (13).

2. active switching regulator 3-D display glasses according to claim 1, it is characterized in that: the cross section in described interior cofferdam (13) is rectangle, square, rhombus, hexagon.

3. active switching regulator dimensional display lens according to claim 1, it is characterized in that: described front glass substrate (1) and rear glass substrate (2) are clear sheet or the film of 0.01～3 millimeter glass, polycarbonate, polymethacrylate or polyphenyl dioctyl phthalate glycol ester for thickness.

4. active switching regulator dimensional display lens according to claim 1, it is characterized in that: described front transparency electrode (4) and rear transparency electrode (5) are tin indium oxide or the ZnO transparent film of 10～1000 nanometers for thickness.

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