CN215006100U

CN215006100U - Switch type electronic lenticular grating and 3D display screen

Info

Publication number: CN215006100U
Application number: CN202121112833.9U
Authority: CN
Inventors: 金泰完; 杨林
Original assignee: Shenzhen Magic Display Technology Co ltd
Current assignee: Shenzhen Magic Display Technology Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-12-03
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a switch-type electron column mirror grating, include first column mirror layer and the second column mirror layer that sets up relatively with a determining deviation, pack the euphotic layer between first column mirror layer and second column mirror layer, the refracting index on first column mirror layer is an, and the refracting index on second column mirror layer is b, and an is greater than c, and euphotic layer refracting index is adjustable and refracting index accommodation range more than or equal to a less than or equal to b. Compared with the prior art, the utility model discloses pack the adjustable euphotic layer of refracting index between the different cylindrical mirror layer of two refracting indexes, select one of them cylindrical mirror layer as the light refracting surface through the refracting index of adjusting the euphotic layer for the cylindrical mirror grating has the focus of multiple difference, can also have different display effects according to the concrete structure on two cylindrical mirror layers, makes this cylindrical mirror grating applicable in the optical device of multiple reality mode or visual distance, extensive applicability. The utility model also discloses a 3D display screen.

Description

Switch type electronic lenticular grating and 3D display screen

Technical Field

The utility model relates to a lenticular lens grating especially relates to a switch mode electron lenticular lens grating and 3D display screen.

Background

The lenticular lens is the most mature technology with excellent effect in the 3D display market. The lenticular grating has the advantages of high light transmittance, continuous light change and natural visual angle switching relative to the slit grating; however, in order to freely switch 3d and 2d displays on the same display, a grating with a switching function is often required.

The structure of the electronic lenticular grating 100 with a switch function is shown in fig. 1, which is an upper ITO layer 11, a lenticular layer 12, a light-transmitting layer 13, and a lower ITO layer 14 from top to bottom, respectively, the refractive index of the currently common liquid crystal after being electrified is about 1.8 to 1.9, the glass is generally not more than 1.65, and only can be used in one direction, the refractive index of the liquid crystal is equal to that of the glass when the liquid crystal is not electrified, the lenticular grating is equivalent to flat glass, and when the liquid crystal is applied with voltage, the refractive index of the liquid crystal is greater than that of the glass, and the lenticular grating is used for 3D display.

However, the lenticular 3D display can only have one focus, and when the lenticular 3D display is used for a display screen, the 3D display screen also has an optimal visual distance, and the applicability is small. Therefore, a switch type electronic lenticular lens capable of solving the above problems is required.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a switch-type electron column mirror grating and display panel, this column mirror grating have two column mirror layers with the determining deviation setting, and two column mirror layers are annotated has the euphotic layer, and the refracting index of euphotic layer is adjusted to the accessible, selects the column mirror face on one of them column mirror layer as the light refracting surface to make this switch-type electron column mirror grating have two focuses, applicable in different visual distances when being used for display screen.

In order to achieve the above object, the utility model discloses a switch-type electron column mirror grating includes down from last in proper order: the light-transmitting layer comprises a first conducting layer, a first cylindrical mirror layer, a light-transmitting layer, a second cylindrical mirror layer and a second conducting layer, wherein the refractive index of the first cylindrical mirror layer is a, the refractive index of the second cylindrical mirror layer is b, a is larger than c, and the refractive index adjusting range of the light-transmitting layer is larger than or equal to a and smaller than or equal to b.

Compared with the prior art, the utility model discloses have two column mirror layers that set up with the determining deviation, and two column mirror layers are annotated there is the euphotic layer, and the refracting index accommodation of euphotic layer can reach two column mirror layers respectively, the refracting index of adjusting the euphotic layer this moment when its shading rate equals one of them column mirror layer, another column mirror layer will regard as the light refracting surface of column mirror grating, the position on this column mirror layer, the refracting index, the structure has decided the focus of this column mirror grating far and near and the treatment effect of focusing, make this column mirror grating applicable in multiple reality mode or visual distance's optical device, and wide applicability.

Preferably, the orientations of the cylindrical lenses on the first cylindrical lens layer and the second cylindrical lens layer are the same, so that the refraction directions of the first cylindrical lens layer and the second cylindrical lens layer are the same when the first cylindrical lens layer and the second cylindrical lens layer are used as light refraction surfaces.

Preferably, the first cylindrical mirror layer is a concave cylindrical mirror layer, the second cylindrical mirror layer is a convex cylindrical mirror layer, and refractive powers of the first cylindrical mirror layer and the second cylindrical mirror layer are different. The technical personnel can adjust the refractive power of the first cylindrical lens layer and the second cylindrical lens layer according to the required sizes of two different visual distances.

Specifically, the refractive power of the first cylindrical lens layer is smaller than that of the second cylindrical lens layer, and the scheme further increases the focal length difference between the first cylindrical lens layer and the second cylindrical lens layer.

Preferably, a refractive index of the light-transmitting layer when a preset voltage is applied is equal to a, and a refractive index of the light-transmitting layer when the light-transmitting layer is cut off is equal to b. The mode of the lenticular grating can be controlled by controlling the on-off of the electrode of the light transmitting layer, and the control is simple.

Preferably, the first lenticular layer has a plurality of trapezoidal or curved lenticules thereon. The trapezoidal column mirror is convenient for processing the column mirror layer and has low cost.

Specifically, the plurality of trapezoidal column lenses are arranged on the first column lens layer in a protruding mode or a concave mode at a certain interval, so that an installation platform for installing a euphotic layer electrode is formed between the tops of the trapezoidal column lenses and the adjacent trapezoidal column lenses in the first column lens layer. The scheme enables the lenticular grating to be used on two sides, and the mounting table facilitates mounting of the electrode on the euphotic layer.

Preferably, the second cylindrical lens layer is provided with a plurality of trapezoidal cylindrical lenses or arc cylindrical lenses. The trapezoidal column mirror is convenient for processing the column mirror layer and has low cost.

Specifically, the plurality of trapezoidal cylindrical lenses are arranged on the second cylindrical lens layer in a protruding mode or a concave mode at a certain interval, so that an installation platform for installing the euphotic layer electrode is formed between the top of each trapezoidal cylindrical lens and the adjacent trapezoidal cylindrical lens in the second cylindrical lens layer. The scheme enables the lenticular grating to be used on two sides, and the mounting table facilitates mounting of the electrode on the euphotic layer.

Specifically, the mounting platform is straight, and processing is simple and the electrode installation of being convenient for, and of course the mounting platform is not limited to straight form, and the mounting groove of installation electrode also can be set up on it.

Preferably, the light-transmitting layer is a liquid crystal layer poured between the first cylindrical mirror layer and the second cylindrical mirror layer, and a first conductive layer and a second conductive layer are further respectively arranged outside the first cylindrical mirror layer and the second cylindrical mirror layer.

Preferably, the switch-type electronic lenticular grating further includes a power supply unit and an adjusting unit, the light-transmitting layer obtains different refractive indexes at different driving voltages, the power supply unit supplies power to the electrode of the light-transmitting layer, and the adjusting unit controls the driving voltage of the light-transmitting layer and adjusts the refractive index of the light-transmitting layer to a or b. In the scheme, the refractive index of the light-transmitting layer is controlled by the driving voltage, and the refractive index of the light-transmitting layer is adjusted by the driving voltage of the light-transmitting layer.

The utility model also discloses a 3D display screen, its characterized in that: the switch type electronic cylindrical lens grating comprises a display unit consisting of a plurality of LED light-emitting sources and a cylindrical lens grating arranged in front of the display unit, wherein the cylindrical lens grating is the switch type electronic cylindrical lens grating.

Drawings

Fig. 1 is a schematic structural diagram of an electron lenticular grating in the prior art.

Fig. 2 is a schematic structural diagram of the switch-type electronic lenticular grating according to the first embodiment of the present invention.

FIG. 3 is a schematic diagram of light passing through the switch-mode electric lenticular lens when the liquid crystal layer is energized.

FIG. 4 is a schematic diagram of light passing through the switched electron lenticular when the liquid crystal layer is de-energized.

Fig. 5 is a schematic structural diagram of a switch-type electronic lenticular grating according to a second embodiment of the present invention.

Fig. 6 is a partially enlarged view of fig. 5.

Fig. 7 is a schematic view of a part of a switch type electronic lenticular grating according to a third embodiment of the present invention.

Fig. 8 is a schematic structural diagram of the 3D display screen of the present invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 2, the utility model discloses a switch mode electron column mirror grating 200, include with relative first column mirror layer 22 and the second column mirror layer 24 that sets up of a determining deviation, pack in euphotic layer 23 between first column mirror layer 22 and the second column mirror layer 24, the double-phase opposite side of euphotic layer 23 laminates respectively first column mirror layer 22 and second column mirror layer 24, the refracting index of first column mirror layer 22 is an, the refracting index of second column mirror layer 24 is b, and an is greater than c, the refracting index of euphotic layer 23 is adjustable, just the refracting index accommodation scope more than or equal to a less than or equal to b of euphotic layer 23.

In this embodiment, the light-transmitting layer 23 may have different refractive indexes under different driving voltages, so that the refractive index is adjusted according to the driving voltage for adjusting the light-transmitting layer 23. In another embodiment, the transparent layer 23 may also adjust the refractive index by other parameters, such as temperature, in which case the adjusting unit adjusts the refractive index by adjusting the temperature of the transparent layer 23.

Preferably, the transparent layer 23 is a liquid crystal layer, and the liquid crystal layer 23 generates different refractive indexes under the influence of different driving voltages. Of course, the light-transmitting layer 23 may be other materials, such as light-transmitting resin having different refractive indexes at different driving voltages, for example, semiconductor glass.

The liquid crystal layer 23 is filled between the first cylindrical mirror layer 22 and the second cylindrical mirror layer 24, and the refractive index adjustment range of the liquid crystal layer 23 is greater than or equal to a and less than or equal to b.

Specifically, the switch-type electric lenticular lens 200 further includes a power supply unit (not shown) for supplying power to the electrodes of the liquid crystal layer 23, and an adjusting unit (not shown) for controlling the power supply unit to operate to adjust the driving voltage of the liquid crystal layer 23, so as to adjust the refractive index of the liquid crystal layer 23 by adjusting the driving voltage, and adjust the refractive index of the liquid crystal layer 23 to a or b according to different control commands.

Wherein, different driving voltages are applied to the liquid crystal layer 23 to correspondingly adjust the refractive index of the liquid crystal layer 23. In this embodiment, a predetermined voltage is applied to the liquid crystal layer 23, such that the refractive index of the liquid crystal layer 23 is equal to a, the liquid crystal layer 23 is powered off, and the refractive index of the liquid crystal layer 23 is equal to b. Of course, two different first voltages and second voltages may be set, the first voltage is provided to the liquid crystal layer 23 to make the refractive index of the liquid crystal layer 23 equal to a, and the second voltage is provided to the liquid crystal layer 23 to make the refractive index of the liquid crystal layer 23 equal to b, which may be specifically set according to actual needs.

A first conductive layer 21 and a second conductive layer 25 are further respectively disposed outside the first cylindrical mirror layer 22 and the second cylindrical mirror layer 24. The switch-type electronic lenticular grating 200 further comprises a first substrate 25 and a second substrate 26, wherein one side of the first conducting layer 21, which is far away from the liquid crystal layer 23, is arranged on the first substrate 26, and one side of the second conducting layer 25, which is far away from the liquid crystal layer 23, is arranged on the second substrate 27.

In this embodiment, the refractive directions of the first and

second lens layers

22 and 24 are the same.

Specifically, the first lenticular layer 22 is a concave lenticular layer on which a plurality of concave arc lenticules are formed. The second cylindrical lens layer 24 is a convex cylindrical lens layer on which a plurality of convex arc cylindrical lenses are formed. When the lenticular lens 200 is used in a display screen or other optical devices requiring adjustment of the refractive direction and size, the specific structures of the first and second

lenticular layers

22 and 24 are set by those skilled in the art according to the refractive direction and size of the display screen, and are not limited to the above embodiments.

Preferably, the refractive powers of the first cylindrical lens layer 22 and the second cylindrical lens layer 24 are different, and in this embodiment, the refractive power of the first cylindrical lens layer 22 is smaller than the refractive power of the second cylindrical lens layer 24. Of course, the power of the first cylindrical lens layer 22 may also be greater than the power of the second cylindrical lens layer 24.

Referring to fig. 2, the first lenticular layer 22 has a plurality of arc-shaped lenticules 221, and the arc-shaped lenticules 221 are convex arc-shaped lenticules that are convexly disposed on the first lenticular layer 22. The second cylindrical lens layer 24 is provided with a plurality of arc-shaped cylindrical lenses 241, the arc-shaped cylindrical lenses 241 are concave arc-shaped cylindrical lenses, and the orientations of the cylindrical lenses on the first cylindrical lens layer 22 and the second cylindrical lens layer 24 are the same, so that the refraction directions of the first cylindrical lens layer 22 and the second cylindrical lens layer 24 are the same when the first cylindrical lens layer and the second cylindrical lens layer are used as light refraction surfaces.

Referring to fig. 3, a schematic diagram of the liquid crystal layer 23 passing through the lenticular lens 200 when the liquid crystal layer 23 is energized is shown, where the refractive index of the liquid crystal layer 23 is equal to the refractive index a of the first lenticular layer 22, and the second lenticular layer 24 serves as a light refracting surface. Referring to fig. 4, when the liquid crystal layer 23 is powered off, light passes through the lenticular grating 200, and the refractive index of the liquid crystal layer 23 is equal to the refractive index b of the second lenticular layer 24.

Referring to fig. 5 and 6, another switch type electronic lenticular sheet 200a is disclosed as a second embodiment of the present invention. Unlike the first embodiment, in this embodiment, the first prism layer 22a has a plurality of trapezoidal prisms 221a thereon. The second prism layer 24a has a plurality of trapezoidal prisms 241a thereon.

Specifically, the trapezoidal prisms 221a are recessed on the first prism layer 22a at a certain interval. The plurality of trapezoidal prisms 241a are protruded on the first prism layer 24a at a certain interval, and the convexes and concaves of the prisms on the first prism layer 22a and the second prism layer 24a are opposite.

More preferably, referring to fig. 6, a mounting stage 222a for mounting the electrode of the liquid crystal layer 23 is formed between the top of the trapezoidal prism 221a and the adjacent trapezoidal prism 221a, and a mounting stage 242a for mounting the electrode of the liquid crystal layer 23 is formed between the top of the trapezoidal prism 241a and the adjacent trapezoidal prism 241 a. The mounting tables 222a and 242a are straight, so that the electrode can be mounted easily and conveniently, and the mounting tables are not limited to be straight, and mounting grooves for mounting electrodes can be formed on the mounting tables.

In this embodiment, the sides of the

trapezoidal prisms

221a and 241a are straight sides, and of course, referring to fig. 7, in the third embodiment of the present invention, the sides of the

trapezoidal prisms

221b and 241b may also be sawtooth sides.

The first and second

lenticular layers

22 and 24 may be made of glass or other materials, and the materials of the first and second

lenticular layers

22 and 24 may be the same or different.

Referring to fig. 8, the utility model also discloses a 3D display screen, include the display element 30 of constituteing by a plurality of LED luminescent light source and locate the lenticular lens grating 200 (lenticular lens grating 200 a) in display element 30 the place ahead. The display unit 30 is an LED display unit, and of course, other 2D display units may be selected as the display unit 30.

The present embodiment takes the lenticular sheet 200 in the first embodiment as an example, and explains the structural relationship between the lenticular sheet and the display unit 30. Of course, the lenticular lens is not limited to the first embodiment. The utility model discloses the lenticular grating also can be applied to other fields except the display screen.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. A switch type electronic cylindrical lens grating is characterized in that: the light-transmitting layer comprises a first cylindrical lens layer and a second cylindrical lens layer which are oppositely arranged at a certain interval, and a light-transmitting layer filled between the first cylindrical lens layer and the second cylindrical lens layer, wherein two opposite side faces of the light-transmitting layer are respectively attached to the first cylindrical lens layer and the second cylindrical lens layer, the refractive index of the first cylindrical lens layer is a, the refractive index of the second cylindrical lens layer is b, a is larger than c, the refractive index of the light-transmitting layer is adjustable, and the refractive index adjusting range of the light-transmitting layer is larger than or equal to a and smaller than or equal to b.

2. The switched electron lenticular grating of claim 1, wherein: the orientations of the cylindrical lenses on the first cylindrical lens layer and the second cylindrical lens layer are the same.

3. The switched electron lenticular grating of claim 1, wherein: the first cylindrical lens layer is a concave cylindrical lens layer, the second cylindrical lens layer is a convex cylindrical lens layer, and refractive powers of the first cylindrical lens layer and the second cylindrical lens layer are different.

4. The switched electron lenticular grating of claim 3, wherein: the refractive power of the first cylindrical lens layer is smaller than that of the second cylindrical lens layer.

5. The switched electron lenticular grating of claim 1, wherein: the refractive index of the light-transmitting layer under a preset voltage is equal to a, and the refractive index of the light-transmitting layer under the outage state is equal to b.

6. The switched electron lenticular grating of claim 1, wherein: and the first cylindrical lens layer and/or the second cylindrical lens glass are/is provided with a plurality of trapezoidal cylindrical lenses or arc-shaped cylindrical lenses.

7. The switched electron lenticular grating of claim 6, wherein: the euphotic layer is a liquid crystal layer, and a plurality of trapezoidal column lenses are convexly arranged or concavely arranged on the first column lens layer at a certain interval, so that an installation platform for installing a liquid crystal layer electrode is formed between the top of each trapezoidal column lens and the adjacent trapezoidal column lens in the first column lens layer.

8. The switched electron lenticular grating of claim 1, wherein: the euphotic layer is a liquid crystal layer poured between the first cylindrical lens layer and the second cylindrical lens layer, and a first conducting layer and a second conducting layer are respectively arranged outside the first cylindrical lens layer and the second cylindrical lens layer.

9. The switched electron lenticular grating of claim 1, wherein: the light-transmitting layer is provided with a light-transmitting layer, the light-transmitting layer obtains different refractive indexes under different driving voltages, the power supply unit supplies power to the electrode of the light-transmitting layer, and the adjusting unit controls the driving voltage of the light-transmitting layer and adjusts the refractive index of the light-transmitting layer to a or b.

10. A3D display screen, its characterized in that: the switch-type electronic lenticular lens comprises a display unit consisting of a plurality of LED light-emitting sources and a lenticular lens grating arranged in front of the display unit, wherein the lenticular lens grating is the switch-type electronic lenticular lens grating according to any one of claims 1 to 9.