CN113219679A - Ladder-shaped electronic cylindrical lens grating - Google Patents

Abstract

Translated fromChinese

本发明公开了一种梯形电子柱镜光栅，包括从上至下依次设置的上电极层、透镜层、液晶层和下电极层，所述透镜层包括玻璃本体、以一定间距成型于所述玻璃本体上的若干倒梯形凹槽，使得所述倒梯形凹槽的底部和相邻所述倒梯形凹槽之间分别形成安装液晶层电极的下安装平台和上安装平台，所述液晶层电极分别安装于所述下安装平台和上安装平台上。与现有技术相比，本发明所述梯形电子柱镜光栅的透镜层具有若干倒梯形凹槽，且倒梯形凹槽之间具有间距，便于加工，加工精度低。另一方面，倒梯形凹槽的底部和相邻所述倒梯形凹槽之间的顶部分别形成安装液晶层电极的上安装平台和下安装平台，便于液晶电极的安装。

The invention discloses a trapezoidal electronic lenticular grating, comprising an upper electrode layer, a lens layer, a liquid crystal layer and a lower electrode layer which are arranged in sequence from top to bottom, the lens layer comprises a glass body and is formed on the glass at a certain interval There are several inverted trapezoidal grooves on the body, so that the bottom of the inverted trapezoidal groove and the adjacent inverted trapezoidal grooves respectively form a lower mounting platform and an upper mounting platform for installing the liquid crystal layer electrodes, and the liquid crystal layer electrodes are respectively Installed on the lower installation platform and the upper installation platform. Compared with the prior art, the lens layer of the trapezoidal electronic lenticular grating of the present invention has several inverted trapezoidal grooves, and the inverted trapezoidal grooves are spaced apart, which is convenient for processing and has low processing precision. On the other hand, the bottom of the inverted trapezoidal groove and the top between the adjacent inverted trapezoidal grooves respectively form an upper mounting platform and a lower mounting platform for mounting the liquid crystal layer electrodes, which facilitates the mounting of the liquid crystal electrodes.

Description

Ladder-shaped electronic cylindrical lens grating

Technical Field

The invention relates to a lenticular grating, in particular to an electronic lenticular grating.

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. The structure of the electroniclenticular grating 100 with a switch function is shown in fig. 1, which is anupper ITO layer 11, alenticular lens layer 12, aliquid crystal layer 13, and alower 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, 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, since the surface of the lenticular glass must be processed to have an arc-shaped surface with sufficient precision, the processing difficulty is high, the price is high, and the circuit for controlling the liquid crystal needs to be embedded in the concave part of the lenticular glass, the difficulty is high, and the number of embedded points is small.

Therefore, there is a high necessity for an electronic lenticular lens that can solve the above problems.

Disclosure of Invention

The invention aims to provide an electronic lenticular grating, wherein a plurality of upper mounting platforms and lower mounting platforms are formed on a lens layer of the electronic lenticular grating, and are used for mounting electrodes of liquid crystal, so that the electronic lenticular grating is convenient to mount and the lens layer is convenient to process.

In order to achieve the purpose, the invention discloses a trapezoidal electronic cylindrical lens grating which comprises an upper electrode layer, a lens layer, a liquid crystal layer and a lower electrode layer which are sequentially arranged from top to bottom, wherein the lens layer comprises a glass body and a plurality of inverted trapezoidal grooves formed on the glass body at certain intervals, a lower mounting platform and an upper mounting platform for mounting liquid crystal layer electrodes are respectively formed between the bottoms of the inverted trapezoidal grooves and the adjacent inverted trapezoidal grooves, and the liquid crystal layer electrodes are respectively mounted on the lower mounting platform and the upper mounting platform.

Compared with the prior art, the lens layer of the trapezoidal electronic lenticular grating is provided with the inverted trapezoidal grooves, and the inverted trapezoidal grooves are spaced, so that the processing is convenient, and the processing precision is low. On the other hand, the bottom of the inverted trapezoidal groove and the top between the adjacent inverted trapezoidal grooves form an upper mounting platform and a lower mounting platform for mounting the liquid crystal layer electrode respectively, so that the liquid crystal electrode can be mounted conveniently. On the other hand, the inverted trapezoidal grooves also enable the poured liquid crystal layer to be provided with a plurality of inverted trapezoidal grooves, and the trapezoidal electronic lenticular grating can be used in an inverted mode, so that the trapezoidal electronic lenticular grating can be suitable for intersection points of light rays with different distances.

Preferably, the side edge of the inverted trapezoidal groove is an inclined straight edge or an inclined sawtooth edge, and compared with an arc-shaped edge, the inverted trapezoidal groove is convenient to process and low in cost.

Preferably, trapezoidal bulges are formed among the inverted trapezoidal grooves, and the inverted trapezoidal grooves and the trapezoidal bulges are identical in shape and opposite in direction.

Preferably, the refractive index of the liquid crystal layer is equal to the refractive index of the lens layer when the liquid crystal layer is powered off, the refractive index is greater than the refractive index of the lens layer when the liquid crystal layer is powered on, the trapezoidal electronic lenticular lens is equivalent to flat glass and can be used for 2D image display when the liquid crystal layer is powered off, and the trapezoidal electronic lenticular lens can be used for 3D image display when the liquid crystal layer is applied with voltage.

Preferably, the upper electrode layer and the lower electrode layer are both ITO layers.

Preferably, the lower mounting platform and the upper mounting platform are straight, so that the electrodes can be conveniently mounted.

The invention also discloses an electronic lenticular grating, which comprises a first electrode layer and a second electrode layer which are oppositely arranged at a certain interval, a lenticular lens layer which is arranged between the first electrode layer and the second electrode layer and is arranged on the first electrode layer, and a liquid crystal layer which is filled between the lenticular lens layer and the second electrode layer, wherein a plurality of concave lens areas are arranged on the side surface of the lenticular lens layer opposite to the second electrode layer at a certain interval, convex bodies are formed between the adjacent concave lens areas, mounting platforms are respectively formed at the bottom of the concave lens areas and the top of the convex bodies, and electrodes of the liquid crystal layer are respectively mounted on the mounting platforms.

Compared with the prior art, in the lenticular lens layer of the electronic lenticular grating, the bottom of the concave lens area and the top of the convex body respectively form a straight installation platform, and the electrodes of the liquid crystal layer are respectively installed on the installation platforms, so that wiring is facilitated.

Preferably, the concave lens region and the convex body are the same in shape and opposite in direction. The liquid crystal layer and the lenticular lens layer are made to be the same in shape and opposite in direction, namely the liquid crystal layer is of a structure with a plurality of inverted trapezoidal grooves, the refractive index of the liquid crystal layer is adjusted, the lenticular grating can be used in reverse in some field lenses, and the liquid crystal layer is suitable for different viewpoint distances.

Preferably, the concave lens region is a trapezoidal groove, and the convex body is an inverted trapezoidal protrusion with the same shape and the opposite direction as the trapezoidal groove. The double-sided electronic cylindrical lens grating is convenient to process, low in processing precision and capable of being used in reverse, and double-sided electronic cylindrical lens gratings are achieved.

Preferably, the refractive index of the liquid crystal layer is equal to the refractive index of the lenticular lens layer when the liquid crystal layer is powered off, the refractive index of the liquid crystal layer is greater than the refractive index of the lenticular lens layer when the liquid crystal layer is powered on, the trapezoidal electronic lenticular grating is equivalent to plate glass when the liquid crystal layer is powered off, and can be used for 2D image display, and when voltage is applied to the liquid crystal layer, the trapezoidal electronic lenticular grating can be used for 3D image display.

Preferably, the first electrode layer and the second electrode layer are both ITO layers.

Preferably, the mounting platform is flat and convenient for mounting the electrode.

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 an electron lenticular grating according to a first embodiment of the present invention.

Fig. 3 is a partially enlarged view of the electron lenticular sheet shown in fig. 2.

Fig. 4 is a partial schematic view of an electron lenticular sheet according to a second embodiment 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 detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 2 and 3, the present invention discloses an electroniclenticular grating 200, which includes afirst electrode layer 21 and asecond electrode layer 22 oppositely disposed at a certain distance, alenticular lens layer 23 mounted between thefirst electrode layer 21 and thesecond electrode layer 22 and disposed on thefirst electrode layer 21, and aliquid crystal layer 24 filled between thelenticular lens layer 23 and thesecond electrode layer 22, wherein a plurality of concave lens regions 231 are disposed on opposite sides of thelenticular lens layer 23 and thesecond electrode layer 22 at a certain distance, and a convex body 232 is formed between adjacent concave lens regions 231, mounting platforms (233, 234) are respectively formed at the bottom of the concave lens region 231 and the top of the convex body 232, and electrodes of theliquid crystal layer 24 are respectively mounted on the mounting platforms (233, 234).

Wherein the mounting platforms include a lower mounting platform formed at the bottom of the concave lens region 231 and anupper mounting platform 234 formed at the top of theconvex body 233. In this embodiment, the mounting platforms (233, 234) are flat. Of course, the mounting platform may be configured to have other structures for facilitating the installation of the electrode, depending on the structure and installation manner of the electrode, such as an installation groove for installing the electrode on the mounting platform.

Wherein, the electronlenticular grating 200 is sequentially from top to bottom: afirst electrode layer 21, alenticular lens layer 23, aliquid crystal layer 24 and asecond electrode layer 22. Thelenticular lens layer 23 includes a glass body 230 and a concave lens region 231 opened on the glass body 230.

Wherein, the sizes of the plurality of concave lens regions 231 may be the same or different.

Wherein the concave lens region 231 and the convex body 232 are the same in shape and opposite in direction. The concave lens region 231 and the convex body 232 may be the same size or different sizes.

In this embodiment, the concave lens region 231 is a trapezoid groove, and the convex body 232 is an inverted trapezoid protrusion with the same shape and the opposite direction as the trapezoid groove 231. In this embodiment, the side of the concave lens region 231 is a slanted straight side.

In this embodiment, the refractive index of the liquid crystal layer is equal to the refractive index of the lenticular lens layer when the liquid crystal layer is powered off, the refractive index of the liquid crystal layer is greater than the refractive index of the lenticular lens layer when the liquid crystal layer is powered on, the trapezoidal electronic lenticular grating is equivalent to flat glass and can be used for 2D image display, and when voltage is applied to the liquid crystal layer, the trapezoidal electronic lenticular grating can be used for. The refractive index of the liquid crystal is about 1.8 to 1.9 after being electrified, the glass does not exceed 1.65 generally, and the specific refractive index can be selected according to actual needs and is not limited to the above numerical value.

Wherein, thefirst electrode layer 21 and thesecond electrode layer 22 are both ITO layers.

Unlike the first embodiment, in the second embodiment of the present invention, the side of the concave lens region 231 is a sawtooth side. Of course, the shape of the concave lens region 231 is not limited to trapezoid, and the side edges of the concave lens region 231 are not limited to straight edges and sawtooth edges, or other folded edges, and can be set according to actual requirements.

The lens layer may be a glass lens or a lens made of other materials.

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 present invention, therefore, the present invention is not limited by the appended claims.

Claims (10)

Translated fromChinese

1.一种梯形电子柱镜光栅，包括从上至下依次设置的上电极层、透镜层、液晶层和下电极层，其特征在于：所述透镜层包括玻璃本体、以一定间距成型于所述玻璃本体上的若干倒梯形凹槽，使得所述倒梯形凹槽的底部和相邻所述倒梯形凹槽之间分别形成安装液晶层电极的下安装平台和上安装平台，所述液晶层电极分别安装于所述下安装平台和上安装平台上。1. a trapezoidal electronic lenticular grating, comprising an upper electrode layer, a lens layer, a liquid crystal layer and a lower electrode layer that are arranged in sequence from top to bottom, it is characterized in that: the lens layer comprises a glass body, is formed in the There are several inverted trapezoidal grooves on the glass body, so that between the bottom of the inverted trapezoidal groove and the adjacent inverted trapezoidal grooves, a lower mounting platform and an upper mounting platform for mounting the electrodes of the liquid crystal layer are respectively formed. The electrodes are respectively installed on the lower installation platform and the upper installation platform.2.如权利要求1所述的梯形电子柱镜光栅，其特征在于：所述倒梯形凹槽的侧边为倾斜直边或者倾斜的锯齿边。2 . The trapezoidal electronic lenticular grating according to claim 1 , wherein the sides of the inverted trapezoidal groove are inclined straight sides or inclined saw-tooth sides. 3 .3.如权利要求1所述的梯形电子柱镜光栅，其特征在于：若干所述倒梯形凹槽之间形成梯形凸起，所述倒梯形凹槽和所述梯形凸起形状相同且方向相反。3 . The trapezoidal electron lenticular grating according to claim 1 , wherein a trapezoidal protrusion is formed between a plurality of the inverted trapezoidal grooves, and the inverted trapezoidal groove and the trapezoidal protrusion have the same shape and opposite directions. 4 . .4.如权利要求1所述的梯形电子柱镜光栅，其特征在于：所述液晶层断电时折射率等于所述透镜层折射率，通电时折射率大于所述透镜层折射率。4 . The trapezoidal electronic lenticular grating according to claim 1 , wherein the refractive index of the liquid crystal layer is equal to the refractive index of the lens layer when the liquid crystal layer is turned off, and the refractive index is greater than the refractive index of the lens layer when the liquid crystal layer is turned on.5.如权利要求1所述的梯形电子柱镜光栅，其特征在于：所述下安装平台和上安装平台呈平直状。5 . The trapezoidal electronic lenticular grating according to claim 1 , wherein the lower installation platform and the upper installation platform are straight. 6 .6.一种电子柱镜光栅，包括以一定间距相对设置的第一电极层和第二电极层、安装于所述第一电极层和第二电极层之间并设于所述第一电极层上的柱镜透镜层以及灌注于所述柱镜透镜层和所述第二电极层之间的液晶层，其特征在于：所述柱镜透镜层与所述第二电极层相对的侧面以一定间距开设有若干内凹透镜区域，并在相邻所述内凹透镜区域之间形成凸体，所述内凹透镜区域的底部和所述凸体的顶部分别形成安装平台，所述液晶层的电极分别安装于所述安装平台上。6. An electronic lenticular grating, comprising a first electrode layer and a second electrode layer oppositely arranged at a certain interval, installed between the first electrode layer and the second electrode layer and arranged in the first electrode layer The lenticular lens layer and the liquid crystal layer poured between the lenticular lens layer and the second electrode layer are characterized in that: the opposite side of the lenticular lens layer and the second electrode layer has a certain There are several concave lens areas spaced apart, and a convex body is formed between adjacent concave lens areas, the bottom of the concave lens area and the top of the convex body respectively form a mounting platform, and the electrodes of the liquid crystal layer are respectively installed on the installation platform.7.如权利要求6所述的电子柱镜光栅，其特征在于：所述内凹透镜区域和所述凸体形状相同且方向相反。7 . The electronic lenticular grating of claim 6 , wherein the concave lens region and the convex body have the same shape and opposite directions. 8 .8.如权利要求7所述的电子柱镜光栅，其特征在于：所述内凹透镜区域为梯形凹槽，所述凸体为与所述梯形凹槽形状相同且方向相反的倒梯形凸起。8 . The electronic lenticular grating of claim 7 , wherein the inner concave lens region is a trapezoidal groove, and the convex body is an inverted trapezoidal protrusion with the same shape and opposite direction as the trapezoidal groove. 9 .9.如权利要求6所述的电子柱镜光栅，其特征在于：所述液晶层断电时折射率等于所述柱镜透镜层折射率，通电时折射率大于所述柱镜透镜层折射率。9. The electronic lenticular grating of claim 6, wherein the refractive index of the liquid crystal layer is equal to the refractive index of the cylindrical lens layer when the liquid crystal layer is powered off, and the refractive index is greater than the refractive index of the cylindrical lens layer when the liquid crystal layer is powered on .10.如权利要求6所述的电子柱镜光栅，其特征在于：所述安装平台呈平直状。10. The electronic lenticular grating of claim 6, wherein the mounting platform is straight.

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