TWI502222B - Switchable lens device and fabricating method thereof and switchable two-dimensional and three-dimensional display device containing thereof - Google Patents

Description

Switchable lens unit, method of manufacturing the same, and switchable type including same Flat stereo display

The present invention relates to a lens unit, a method of fabricating the same, and a display therefor, and more particularly to a switchable lens unit, a method of fabricating the same, and a switchable planar stereoscopic display including the same.

In recent years, with the continuous advancement of display technology, users have become more and more demanding on the display quality of displays (such as image resolution, color saturation, etc.). However, in addition to high image resolution and high color saturation, in order to meet the needs of users to view real images, stereoscopic displays capable of displaying stereoscopic images have also been developed.

The stereoscopic display can be divided into stereoscopic and auto-stereoscopic viewing by the naked eye depending on whether the user wears a specially designed headwear. The naked eye display mainly uses the parallax method The stereoscopic effect can be subdivided into three types: a Parallax barrier, a lenticular lens, and a directional backlight. In the case of a lenticular lens display technology, a liquid crystal polymer layer is formed on a cymbal sheet to form a lenticular lens structure, and the lenticular lens structure is used to switch a two-dimensional planar display into a three-dimensional stereo display in use with a liquid crystal display. Switching lens.

1 is a schematic view (upper) and a corresponding plan view (bottom) of a conventional lenticular lens structure. Referring to FIG. 1 , the lenticular lens structure 100 includes a cymbal sheet 110 and a liquid crystal polymer layer 120 disposed on the cymbal sheet 110 . The liquid crystal polymer layer 120 includes a plurality of liquid crystal molecules 122a, 122b, 122c having a convex portion 124 and a ridge line 126 between the convex portions 124.

As shown in FIG. 1, the alignment direction Da of the liquid crystal polymer layer 120 adjacent to the wafer 110 must be parallel to the alignment direction Db with reference to the alignment direction Db of the liquid crystal polymer layer 120 of the light entrance portion 120a. It is noted that the curved surface structure of the convex portion 124 of the liquid crystal polymer layer 120 provides an anchoring force F, and the plane component Fa of the anchoring force F will be in the alignment direction Da of the liquid crystal polymer layer 120 disposed there. The plane component has an effect. That is to say, compared with the arrangement of the liquid crystal molecules 122a, the arrangement of the liquid crystal molecules 122b, 122c is affected by the anchoring force F of the curved structure, and is skewed, resulting in the generation of the misalignment line. In this way, when the light L passes through the lenticular lens structure 100, a part of the light L' will be deflected and aggregated, and a part of the light L" will diverge and cannot be collected, so that the problem of poor light collecting effect occurs. .

In summary, in the conventional lenticular lens structure, it must be adjacent to 稜鏡 The alignment direction of the liquid crystal polymer layer at the sheet is designed to be parallel to the alignment direction of the liquid crystal polymer layer on the light incident side, which causes a limitation in process margin. Further, since the alignment directions of the liquid crystal molecules in the liquid crystal polymer layer are not uniform, the refractive index exhibited may be different, resulting in poor concentration of the liquid crystal polymer layer. As a result, problems such as cross-talk of the three-dimensional image and interference of the two-dimensional image are generated, resulting in poor display quality of the two-dimensional display and the three-dimensional display.

The present invention provides a switchable lens unit in which liquid crystal molecules adjacent to a ruthenium sheet have good alignment uniformity.

The invention further provides a switchable planar stereoscopic display with good display quality.

The present invention further provides a method of fabricating a switchable lens unit having a preferred process margin.

The switchable lens unit of the present invention comprises a die and a liquid crystal polymer layer. The crotch panel has a plurality of concavely transmissive portions and a plurality of ridgelines formed between the concave transmissive portions, wherein each of the ridgelines has a ridgeline direction. The liquid crystal polymer layer covers the ruthenium sheet and has a plurality of convex transparent portions disposed opposite to the concave transparent portion, and the liquid crystal polymer layer comprises a plurality of liquid crystal molecules, wherein a long axis of the liquid crystal molecules adjacent to the ruthenium sheet has a planar projection direction, The plane projection direction is substantially perpendicular to the ridge direction.

The switchable planar stereoscopic display of the present invention comprises a display panel, a A planar stereo switchable unit and a switchable lens unit. The planar stereo switchable unit is disposed between the display panel and the switchable lens unit. The switchable lens unit includes a flip chip and a liquid crystal polymer layer. The crotch panel has a plurality of concavely transmissive portions and a plurality of ridgelines formed between the concave transmissive portions, wherein each of the ridgelines has a ridgeline direction. The liquid crystal polymer layer covers the ruthenium sheet and has a plurality of convex transparent portions disposed opposite to the concave transparent portion, and the liquid crystal polymer layer comprises a plurality of liquid crystal molecules, wherein a long axis of the liquid crystal molecules adjacent to the ruthenium sheet has a planar projection direction, The plane projection direction is substantially perpendicular to the ridge direction.

The method of manufacturing the switchable lens unit of the present invention includes the following steps. Correct a cymbal is oriented such that the cymbal has a first alignment direction, wherein the cymbal has a plurality of concave portions and a plurality of ridge lines formed between the concave portions, wherein each ridge has a ridge direction, the first alignment direction It is substantially perpendicular to the ridge direction. The alignment film is aligned such that the alignment film has a second alignment direction. A liquid crystal polymer layer is formed between the tantalum sheet and the alignment film such that the liquid crystal polymer layer has a plurality of convex portions disposed opposite to the concave portion, and the liquid crystal polymer layer includes a plurality of liquid crystal molecules. The alignment process is performed on the liquid crystal polymer layer such that the long axes of the liquid crystal molecules adjacent to the ruthenium have the same planar projection direction, and the plane projection direction is parallel to the first alignment direction of the cymbal. The alignment liquid crystal polymer layer is subjected to a curing process in which the planar projection direction of the long axis of the liquid crystal molecules adjacent to the ruthenium is substantially perpendicular to the ridgeline direction. Remove the alignment film.

In an embodiment of the invention, the angle between the plane projection direction and the ridgeline direction is 90° ± 5°.

In an embodiment of the invention, the display panel comprises a polarizer, and a planar projection direction of a long axis of the liquid crystal molecules adjacent to the planar stereo switchable unit in the liquid crystal polymer layer is substantially parallel to the penetration with the polarizer. Axis direction.

In an embodiment of the invention, the planar stereo switchable unit includes a pair of substrates and a liquid crystal layer disposed between the pair of substrates.

In an embodiment of the invention, each of the concave portions is elongated.

In an embodiment of the invention, the first alignment direction is different from the second alignment direction.

In an embodiment of the invention, the aligning the liquid crystal polymer layer comprises performing an annealing process on the liquid crystal polymer layer.

In an embodiment of the invention, prior to the alignment process on the liquid crystal polymer layer, a pressure bonding process is further performed on the ruthenium sheet, the alignment film, and the liquid crystal polymer layer between the ruthenium sheet and the alignment film.

In an embodiment of the invention, the curing process includes a UV irradiation process.

Based on the above, in the switchable lens unit of the present invention, the planar projection direction of the long axis of the liquid crystal molecules adjacent to the cymbal is substantially perpendicular to the ridgeline direction. That is to say, the long axis of the liquid crystal molecules adjacent to the cymbal has a uniform plane projection direction, so that the liquid crystal molecules there have good alignment uniformity. In this way, the opportunity for the liquid crystal molecules to generate a misdirected line is reduced, thereby preventing the 3D image overlay and the 2D image from generating interference ripple. Therefore, the switchable planar stereoscopic display including the switchable lens unit has good display quality. Further, the system of the switchable lens unit of the present invention is The manufacturing method has a better process margin.

The above described features and advantages of the invention will be apparent from the following description.

10‧‧‧Switchable flat stereo display

100‧‧‧ lenticular lens structure

110, 210‧‧‧ pictures

120, 230‧‧‧ liquid crystal polymer layer

120a, 230a‧‧‧

122a, 122b, 122c, 232‧‧ liquid crystal molecules

124, 234‧‧ ‧ convex part

126, 214, 236, PS‧‧‧ ridgeline

208, 218, 310, 320, 410, 420‧‧‧ substrates

220‧‧‧Alignment film

300‧‧‧ display panel

312‧‧‧ pixel array

340‧‧‧ polarizer

400‧‧‧Flat stereo switchable unit

430‧‧‧Liquid layer

510, 520‧‧ ‧ adhesive layer

AP‧‧‧Alignment Process

D1‧‧‧first alignment direction

D2‧‧‧Second alignment direction

Da, Db, Dc, Di‧‧‧ alignment direction

De‧‧‧ ridgeline direction

Dt‧‧‧ penetration axis direction

Dx‧‧‧planar projection direction

F‧‧‧ anchoring force

Fa‧‧‧ component

L, L’, L” ‧ ‧ light

SP‧‧‧ curing process

1 is a schematic view of a conventional lenticular lens structure and a corresponding planar projection.

2A-2E are schematic cross-sectional views showing a method of fabricating a switchable lens unit in accordance with an embodiment of the present invention.

3 is a schematic diagram of a liquid crystal polymer layer of a switchable lens unit and a corresponding planar projection thereof, in accordance with an embodiment of the present invention.

4 is a perspective view of a switchable planar stereoscopic display in accordance with an embodiment of the present invention.

5A to 5D are a simplified schematic view of the switchable lens unit of the experimental example 1, the experimental example 2, the comparative examples 1 and 2, and the comparative example 3 according to the present invention, and the photomicrograph of the liquid crystal polymer layer ( Medium) and visual photos (below).

2A to 2E are schematic cross-sectional views showing a method of fabricating a switchable lens unit according to an embodiment of the present invention, in which the illustration of liquid crystal molecules is omitted. 3 is a partial schematic view (upper) of the liquid crystal polymer layer of FIG. 2E and corresponding plane projections Intention (below), in the plane projection diagram, the ridge line 236, the alignment direction Dc of the liquid crystal polymer layer adjacent to the cymbal, and the plane projection of the alignment direction Di of the liquid crystal polymer layer on the light incident side are illustrated, wherein the plane projection direction Dx is The planar projection of the alignment direction Dc of the liquid crystal polymer layer, the alignment direction Dc is parallel to the plane projection direction Dx, and the alignment direction Dc and the plane projection direction Dx are both perpendicular to the ridgeline 236. Referring to FIG. 2A, first, a cymbal sheet 210 is aligned such that the cymbal sheet 210 has a first alignment direction D1, wherein the cymbal sheet 210 has a plurality of concave transparent portions 212 and a plurality of strips formed between the concave transparent portions 212. The ridgeline 214, wherein each ridgeline 214 has a ridgeline direction De, the first alignment direction D1 being substantially perpendicular to the ridgeline direction De. In the present embodiment, the material of the cymbal sheet 210 is, for example, a resin material, which is formed, for example, on the substrate 208, and the method of aligning the cymbal sheet 210 is, for example, rubbing using a friction roller. The plurality of concave portions 212 are, for example, arranged in parallel with each other, and each of the concave portions 212 extends in the ridge direction De.

Next, an alignment film 220 is aligned such that the alignment film 220 has a second alignment direction D2. The first alignment direction D1 and the second alignment direction D2 are, for example, different (not required to be parallel to each other). In the present embodiment, this step is, for example, first applying an alignment material on the substrate 218 to form the alignment film 220, and then aligning the alignment film 220. The substrate 218 may be a glass substrate such as a soda-lime glass substrate. The material of the alignment film 220 is, for example, polyamidamine (PI). The method of aligning the alignment film 220 is, for example, rubbing using a rubbing roller.

Referring to FIG. 2B, a liquid crystal polymer layer 230 is formed between the ruthenium sheet 210 and the alignment film 220, so that the liquid crystal polymer layer 230 has a concave portion. The liquid crystal polymer layer 230 includes a plurality of liquid crystal molecules 232 in a plurality of convex portions 234 disposed opposite to each other. In this embodiment, the material of the liquid crystal polymer layer 230 is pretreated, that is, the liquid crystal polymer material is melted, mixed, and degassed, so that the liquid crystal polymer material has better characteristics. After processing the liquid crystal polymer material, the liquid crystal polymer is applied onto the alignment film 220 by a tool such as a liquid crystal coater. Then, the ruthenium sheet 210 is laminated on the alignment film 220 to which the liquid crystal polymer layer 230 has been applied, so that the liquid crystal polymer layer 230 is formed between the ruthenium sheet 210 and the alignment film 220. The liquid crystal polymer layer 230 in contact with the concave portion 212 of the cymbal sheet 210 forms a plurality of convex portions 234. In the present embodiment, the liquid crystal polymer layer 230 includes a plurality of convex portions 234 and a plurality of ridge lines 236 formed between the convex portions 234, respectively corresponding to the concave portion 212 and the ridge line 214 of the cymbal 210. Here, each of the ridge lines 236 has a ridge line direction De, and the plurality of convex portions 234 are, for example, arranged in parallel with each other, and each of the convex portions 234 extends in the ridge direction De.

In the present embodiment, after forming the laminated structure including the alignment film 220, the liquid crystal polymer layer 230, and the ruthenium sheet 210, the laminate structure is further subjected to a pressure bonding process so that the film layers in the laminated structure are in close contact with each other. In the present embodiment, for example, in the roller table, the pressing process is performed by rolling the roller on the cymbal sheet 210.

Referring to FIG. 2C and FIG. 3 simultaneously, an alignment process AP is performed on the liquid crystal polymer layer 230 such that the long axes of the liquid crystal molecules 232 adjacent to the cymbal 210 have the same plane projection direction Dx, and the plane projection direction Dx is parallel to the ribs. The first alignment direction D1 of the lens 210. In detail, since the cymbal 210 has the first alignment side To D1, the liquid crystal molecules 232 adjacent to the cymbal 210 have an alignment direction Dc which is the same as the first alignment direction D1. In other words, the plane projection direction Dx, the alignment direction Dc, and the first alignment direction D1 of the long axis of the liquid crystal molecules 232 are parallel to each other. In the present embodiment, the alignment process AP performed on the liquid crystal polymer layer 230 is, for example, an annealing process. The annealing process temperature is, for example, 90 to 110 ° C, and the time for the fire process is, for example, 60 to 90 minutes.

Referring to FIG. 2D and FIG. 3 simultaneously, a curing process SP is performed on the aligned liquid crystal polymer layer 230, wherein the planar projection direction Dx of the long axis of the liquid crystal molecules 232 adjacent to the cymbal 210 is substantially perpendicular to the ridgeline direction De. . In the present embodiment, the curing process SP is, for example, a UV irradiation process. The curing process SP causes the liquid crystal polymer layer 230 to be cured, so that the liquid crystal molecules 232 in the liquid crystal polymer layer 230 are fixed in the above state, that is, the plane projection direction Dx of the liquid crystal molecules 232 is parallel to the first alignment direction of the die 210. D1. The alignment direction of the liquid crystal molecules 232 adjacent to the ruthenium 210 does not need to be parallel to the alignment direction of the liquid crystal molecules 232 of the light entrance portion 230a of the liquid crystal polymer layer 230.

Referring to FIG. 2E, the alignment film 220 is then removed. The method of removing the alignment film 220 is, for example, a tear-off method.

Referring to FIG. 2E and FIG. 3 simultaneously, in the embodiment, the switchable lens unit 200 includes a cymbal 210 and a liquid crystal polymer layer 230. The crotch panel 210 has a plurality of concavely transmissive portions 212 and a plurality of ridgelines 214 formed between the concave transmissive portions 212, wherein each of the ridgelines 214 has a ridgeline direction De. The liquid crystal polymer layer 230 is covered on the cymbal 210, and has a plurality of convex portions 234 disposed opposite to the concave portion 212, and the liquid crystal The polymer layer 230 includes a plurality of liquid crystal molecules 232, wherein the long axis of the liquid crystal molecules 232 adjacent to the ruthenium 234 has a planar projection direction Dx, and the plane projection direction Dx is substantially perpendicular to the ridgeline direction De. In the present embodiment, the angle between the plane projection direction Dx and the ridge line direction De is, for example, 85 to 95 degrees.

In the above embodiment, since the plane projection direction Dx of the long axis of the liquid crystal molecules 232 is substantially perpendicular to the ridgeline direction De, the anchoring force F of the convex portion 231 of the liquid crystal polymer layer 230 is not perpendicular to the liquid crystal molecules 232. The component of the alignment direction is generated. Therefore, the liquid crystal molecules 232 adjacent to the crotch sheet 210 have the same planar projection direction Dx, that is, the liquid crystal molecules 232 in the liquid crystal polymer layer 230 adjacent to the crotch sheet 210 have uniform alignment.

In particular, although the switchable lens unit 200 is manufactured in the above-described manner in the present embodiment, the present invention is not limited thereto. That is to say, in other embodiments, the switchable lens unit 200 as shown in FIGS. 2E and 3 may be fabricated in other manners. Further, the switchable lens unit 200 may further include other members.

4 is a perspective view of a switchable planar stereoscopic display in accordance with an embodiment of the present invention. Referring to FIG. 4 , the switchable planar stereoscopic display 10 includes a display panel 300 , a planar stereo switchable unit 400 , and a switchable lens unit 200 . The planar stereo switchable unit 400 is disposed between the display panel 300 and the switchable lens unit 200. The planar stereo switchable unit 400 includes, for example, a pair of substrates 410, 420 and a liquid crystal layer 430 between the substrate 410 and the substrate 420. The upper substrate 410 and the lower substrate 420 are, for example, glass substrates. The structure of the switchable lens unit 200 can be referred to the related description of FIG. 2E, and details are not described herein. In this reality In an embodiment, the switchable planar stereoscopic display 10 further includes an adhesive layer 510, 520, wherein the adhesive layer 510 is disposed between the planar stereo switchable unit 400 and the switchable lens unit 200 to fit the two, and adhere thereto. The layer 520 is disposed between the planar stereo switchable unit 400 and the display panel 300 to fit both.

In the present embodiment, the display panel 300 includes, for example, a pair of substrates 310, 320, a display medium 330, and a pixel array layer 312. The pixel array layer 312 is disposed on the substrate 310 and includes, for example, a scan line, a data line, an active device, and a pixel electrode. The display medium 330 is packaged between the substrate 310 and the substrate 320. In an embodiment, the material of the display medium 330 may be a self-luminous material (for example, an organic luminescent material, an inorganic luminescent material, or other suitable materials, or a combination thereof), a non-self-luminous material (eg, a liquid crystal material, electrophoresis). A material, an electrowetting material, or other suitable material), or other material that can cause the display light to have a different brightness, or a combination of at least one of the foregoing. In the present embodiment, the display panel 300 further includes a polarizer 340, and the alignment direction Di of the liquid crystal polymer layer in the second alignment direction D2 or the light incident side is substantially parallel to the transmission axis direction Dt of the polarizer 340.

In the prior art, the alignment direction of the liquid crystal molecules adjacent to the ruthenium in the liquid crystal polymer layer is affected by the plane component of the anchoring force generated by the structure, resulting in inconsistent alignment directions, resulting in misalignment and poor concentrating. effect. However, in the above embodiment, in the liquid crystal polymer layer 230 of the switchable lens unit 200, since the plane projection direction Dx of the long axis of the liquid crystal molecules 232 is substantially perpendicular to the ridge line direction 214, the liquid crystal polymer 230 is convex. The anchoring force F of the portion 234 does not have a component perpendicular to the alignment direction of the liquid crystal molecules 232. Therefore, adjacent to the cymbal 210 The liquid crystal molecules 232 have the same planar projection direction Dx, that is, the liquid crystal molecules 232 in the liquid crystal polymer layer 230 adjacent to the ruthenium 210 have uniform alignment. That is, the occurrence of a misalignment in the liquid crystal polymer layer 230 can be avoided, so that the liquid crystal polymer layer 230 has a better light collecting effect. In this manner, in the switchable planar stereoscopic display 10 using the switchable lens unit 200 of the present embodiment, the 3D image generation overlap and the 2D image interference ripple can be avoided, and thus the display quality is good.

Next, the effects of the switchable lens unit of the present invention will be verified by experimental examples and comparative examples.

The constituent members of the switchable lens unit of Experimental Example 1, Experimental Example 2, Comparative Examples 1 and 2, and Comparative Example 3 were identical except for the alignment direction of the liquid crystal polymer layer adjacent to the cymbal sheet and the ridge line of the cymbal sheet. The angle of the. 5A to 5D are a simplified schematic view of the switchable lens unit of the experimental example 1, the experimental example 2, the comparative examples 1 and 2, and the comparative example 3 according to the present invention, and the photomicrograph of the liquid crystal polymer layer ( And a visual photograph (bottom) in which the ridge line PS, the alignment direction Dc of the liquid crystal polymer layer adjacent to the ruthenium, and the alignment direction Di of the liquid crystal polymer layer on the light incident side are shown in a simple schematic, wherein the liquid crystal polymer layer The alignment direction Dc is parallel to the plane projection direction Dx of the long axis of the liquid crystal molecules and is perpendicular to the ridge line PS.

Referring to FIGS. 5A and 5B, in Experimental Examples 1 and 2 according to the present invention, when the alignment direction Dc of the liquid crystal polymer layer adjacent to the ruthenium is perpendicular to the ridge line PS, respectively, no misdirection is observed in the liquid crystal polymer layer. line. That is, the liquid crystal molecules of the liquid crystal polymer layer have good alignment uniformity.

Referring to FIG. 5C, in Comparative Examples 1 and 2, when the alignment direction Dc of the liquid crystal polymer layer adjacent to the ruthenium and the ridge line PS have an angle of 0 degree (Comparative Example 1) or 180 degrees (Comparative Example 2), respectively. That is, when the alignment direction Dc is parallel to the ridge line PS, respectively, a significant misdirection line is observed in the liquid crystal polymer layer. That is, the liquid crystal molecules of the liquid crystal polymer layer have poor alignment uniformity.

Referring to FIG. 5D, Comparative Example 3 is a conventional alignment mode of a liquid crystal polymer layer, that is, an alignment direction Dc of a liquid crystal polymer layer adjacent to a ruthenium is designed to be aligned with a liquid crystal polymer layer at a light entrance. Di parallel, from the microscopic and macroscopic observations of the liquid crystal polymer layer, a misalignment was observed in the liquid crystal polymer layer adjacent to the ruthenium.

Table 1 shows the contrast ratios of the liquid crystal polymer layers of Experimental Examples 1 and 2 and Comparative Examples 1 to 3, wherein the contrast ratio is used to indicate the alignment uniformity of the liquid crystal polymer layer, wherein the liquid crystal polymer layer has a contract ratio It is proportional to the alignment uniformity of the liquid crystal polymer layer.

As can be seen from Table 1, the alignment direction Dc of the liquid crystal polymer layer adjacent to the ruthenium sheet was designed to be perpendicular to the ridge line PS (Experimental Examples 1 and 2), and good alignment uniformity was obtained, and the alignment uniformity obtained was conventionally known. The alignment uniformity obtained by the alignment method (Comparative Example 3) was similar. However, the present invention allows the alignment direction Dc of the liquid crystal polymer layer adjacent to the ruthenium to be perpendicular to the ridge line PS as compared with the conventional alignment mode. Avoid the generation of misaligned lines, thus avoiding the generation of overlapping images in 3D images and interference ripples in 2D images. Further, although Experimental Example 1 and Comparative Example 3 have similar alignment uniformity, the alignment manner of the liquid crystal polymer layer of Experimental Example 1 does not require liquid crystal polymer adjacent to the ruthenium sheet, compared to the configuration of Conventional Comparative Example 3. The alignment direction Dc of the layer needs to be parallel to the alignment direction Di of the liquid crystal polymer layer at the light entrance, so that it has the advantages of a simple process and is suitable for fine adjustment according to different ruthenium sheets, so that it has a large process margin.

In summary, in the switchable lens unit of the present invention, the planar projection direction of the long axis of the liquid crystal molecules adjacent to the cymbal is substantially perpendicular to the ridge direction. That is to say, the long axis of the liquid crystal molecules adjacent to the cymbal has a uniform plane projection direction, so that the liquid crystal molecules there have good alignment uniformity. In this way, since the anchoring force of the convex portion of the liquid crystal polymer layer is not generated by a component perpendicular to the alignment direction of the liquid crystal molecules, the chance of the liquid crystal molecules being misdirected is reduced, thereby avoiding 3D image overlay and 2D. The image produces interference ripples. Therefore, the switchable planar stereoscopic display including the switchable lens unit has good display quality. In addition, the alignment direction of the liquid crystal polymer layer adjacent to the conventional tantalum sheet needs to be parallel to the alignment direction of the liquid crystal polymer layer at the light entrance, and the present invention does not require that the alignment directions of the above two must be parallel, but the present invention One embodiment achieves alignment uniformity similar to the conventional alignment. Therefore, the manufacturing method of the switchable lens unit of the present invention is suitable for fine adjustment according to the different shapes of the cymbal, so that it has a large process margin.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art without departing from the invention. In the spirit and scope, the scope of protection of the present invention is subject to the definition of the appended patent application.

230‧‧‧Liquid polymer layer

230a‧‧‧Entry

232‧‧‧liquid crystal molecules

234‧‧‧ convex part

236‧‧‧ ridgeline

Dc, Di‧‧‧ alignment direction

De‧‧‧ ridgeline direction

Dx‧‧‧planar projection direction

F‧‧‧ anchoring force

Fa‧‧‧ component

L‧‧‧Light

Claims (13)

A switchable lens unit comprising: a plurality of concave portions and a plurality of ridge lines formed between the concave portions, wherein each of the ridge lines has a ridge line direction; and a liquid crystal polymer layer covering Having a plurality of convex portions disposed opposite to the concave portions, the liquid crystal polymer layer includes a plurality of liquid crystal molecules, wherein a long axis of the liquid crystal molecules adjacent to the germanium has a planar projection The direction in which the plane projection direction is substantially perpendicular to the ridgeline direction. The switchable lens unit according to claim 1, wherein an angle between the plane projection direction and the ridgeline direction is 90°±5°. A switchable planar stereoscopic display, comprising: a display panel; a planar stereo switchable unit; and a switchable lens unit, wherein the planar stereo switchable unit is disposed between the display panel and the switchable lens unit, The switchable lens unit includes: a plurality of concave portions and a plurality of ridge lines formed between the concave portions, wherein each of the ridge lines has a ridge line direction; and a liquid crystal polymer layer covering the a plurality of convex portions disposed opposite to the concave portions, the liquid crystal polymer layer comprising a plurality of liquid crystal molecules, wherein a long axis of the liquid crystal molecules adjacent to the germanium has a planar projection direction, The plane projection direction is substantially perpendicular to the ridgeline direction. The switchable planar stereoscopic display of claim 3, wherein an angle between the plane projection direction and the ridgeline direction is 90°±5°. The switchable planar stereoscopic display of claim 3, wherein the display panel comprises a polarizer, a plane of a long axis of the liquid crystal molecules adjacent to the planar stereo switchable unit in the liquid crystal polymer layer The projection direction is substantially parallel to the direction of the transmission axis of the polarizer. The switchable planar stereoscopic display of claim 3, wherein the planar stereo switchable unit comprises a pair of substrates and a liquid crystal layer disposed between the pair of substrates. The switchable planar stereoscopic display of claim 3, wherein each of the concave transparent portions is elongated. A manufacturing method of a switchable lens unit, comprising: aligning a cymbal to have a first alignment direction, wherein the cymbal has a plurality of concave portions and is formed between the concave portions a plurality of ridge lines, wherein each of the ridge lines has a ridge line direction, the first alignment direction is substantially perpendicular to the ridge line direction; aligning an alignment film such that the alignment film has a second alignment direction; Forming a liquid crystal polymer layer between the alignment films, such that the liquid crystal polymer layer has a plurality of convexities disposed opposite to the concave portions, the liquid crystal polymer layer comprising a plurality of liquid crystal molecules; the liquid crystal polymer layer Performing an alignment process such that the long axes of the liquid crystal molecules adjacent to the cymbal have the same planar projection direction, the planar projection direction being parallel to the first alignment direction of the cymbal; and the aligned liquid crystal polymer layer Performing a curing process in which the plane projection direction of the long axis of the liquid crystal molecules adjacent to the cymbal is substantially perpendicular to the ridge direction; and removing Alignment film. The method of manufacturing a switchable lens unit according to claim 8, wherein an angle between the plane projection direction and the ridgeline direction is 90°±5°. The method of manufacturing a switchable lens unit according to claim 8, wherein the first alignment direction is different from the second alignment direction. The manufacturer of the switchable lens unit as described in claim 8 The method wherein the alignment process of the liquid crystal polymer layer comprises performing an annealing process on the liquid crystal polymer layer. The method for manufacturing a switchable lens unit according to claim 8, further comprising, before the alignment process on the liquid crystal polymer layer, the ruthenium sheet, the alignment film, and the ruthenium and the alignment The liquid crystal polymer layer between the films is subjected to a pressing process. The method of manufacturing a switchable lens unit according to claim 8, wherein the curing process comprises a UV irradiation process.