TW201135290A - Switchable fresnel lens - Google Patents

Abstract

A switchable Fresnel lens allowing a polarized light passing through is provided. The switchable Fresnel lens includes a Fresnel lens part and an optical material layer. The Fresnel lens part has a light incident surface and a light emergence surface. The Fresnel lens part has birefringence. The polarized light enters the Fresnel lens part from the light incident surface and leaves the Fresnel lens part through the light emergence surface. The refractive index of the Fresnel lens part with respect to the polarized light is capable of being adjusted via an electric field. The optical material layer is disposed on the light emergence surface of the Fresnel lens part, and the optical material layer has a fixed refractive index nx.

Description

201135290 i\yj\jy\jy\19 33474twf.doc/n VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a species of phenanthrene; Fresndens, and Regarding a variable-switchable Fresnel lens. [Prior Art] Fresnellens, also known as threaded lenses, which retain the curved surface and curvature of the mirror and use the differential principle to produce a relatively transparent and thin lens, so that the lens material can be saved, thereby enabling: When II is used as a large lens, it can win (10). The stem is supposed to be __’ and is currently used in 1 field. In general, in the field of display, Fico lenses can

The display surface of ==2, especially when applied to a large panel with multiple panels, the optical modification effect through the Fico lens can make the joint between the panels, _ less used by U non-obscenity lenses It will reduce the visibility of the display, however, and whether or not the display effect is limited by the designer. Letting a biased lens portion and the present invention provide an adjustable variant phenotype whether or not to be turned on. Aurora The present invention proposes an adjustable variant of phenanthrene without astigmatism. Adjustable variable Fresnel lens included - 201135290

Auww179 33474twf.doc/n: light, material layer. The lenticular lens portion has a human light surface and an lentic lens portion having birefringence. The polarized light 纟Μ $ is the lens portion and leaves the Fresnel lens from the light exit surface. The non-polarized light has a refractive index suitable for transmission-electric field modulation. : on the light-emitting surface of the mirror portion, wherein the optical material layer has a short off-axis refractive index n of the material including the lenticular lens portion. . For example, Shangcheng's short car = irradiance n 〇 < single refractive index η χ < long axis refractive index ~. The side is equal to the short axis - in the embodiment, the above-described single-refractive index η χ substantially finds the (four)-axis refractive index η. Or long axis refractive index η. And the negative-shaped fine towel on the shell, the above-mentioned read refraction recording crystal includes - and a short-axis refractive index n&<^ ηχψ ^ . In the case of the invention, the above-mentioned single refractive index further comprises a dipole of the above-mentioned adjustable variable phenanthrene lens layer, and the refractive index of the polarized light is suitable for transmitting the second electricity in the embodiment of the invention, The optical material layer has -201135290

Auuyuy J79 33474twf.doc / n ^ surface and - top surface. The joint surfaces are joined while the top surface is a plane. In addition to the illuminating surface of a non-reel lens portion, the present invention proposes that it is adapted to pass a light.跫 菲 菲 菲 . Light is converted to _. , the vibration determines the polarization direction of the polarized light. The second variable variator and a light-emitting surface, wherein the impurity-bearing portion has a light entering the luminosity lens from the light-incident surface, and is emitted from the ear. The polarizing element is adapted to provide a different partial ear lens so that the polarizing layer of the Fico lens portion to the refractive index of the polarized light is disposed on the light emitting surface of the lens portion, = optical material A single refractive index ηχ. /, the neutron material layer has the liquid crystal cell in the embodiment of the present invention. It is also a few packets earlier than the above-mentioned ~ based on the above-mentioned 'four (four) adjustable variable Philippine money can be electricity or can be difficult to polarize the unit to change the polarized refractive index of the lens portion of the lens, so the design requirements need to be mosquitoes The Philippine lens is turned on. The above-described features and advantages of the present invention will become more apparent and understood from the following description. [First Embodiment] FIG. 1A and FIG. 1B are diagrams showing a changeable Philippine 201135290 179 33474 twf.d〇c/n Nesper lens (switch- Fresnel lens) and display according to a first embodiment of the present invention. = schematic diagram of the profile. Referring to FIG. 1A, i = Γ0° of the present embodiment is adapted to allow a polarized light (for example, polarized light). (4) The ear 100 passes through Fresnel transmission = (4) m and the optical material layer 120. In the present embodiment, the polarized light is, for example, polarized light that passes through the display panel 200, such as a liquid crystal display panel. The power supply is not the panel 200. As shown in Fig. 1A, the Fresnel lens portion 11 and the light-emitting surface are illusory. In addition, the Fico lens is indented and birefringence, and the polarized light u is emitted from the light incident surface "mirror portion 110" and exits from the light exit surface S2. The material of the Fico lens unit (10) is a birefringent liquid crystal. FIG. 1C shows the magnified soil of the birefringent liquid crystal, and the birefringent liquid crystal H2 has a long axis image respectively. The light passes through the birefringent liquid crystal 112 and its polarization direction is fresh. When the light passes through the birefringence refractive index ~, the 'birefringence liquid crystal 112 refracts the light: square = η. In the present embodiment, the birefringent liquid crystal 112 case rate, the birefringence liquid crystal ne is shorter than The axial refractive index η. Therefore, the bismuth 112 half 112 (positive liquid crystal) 'birefringence k 曰曰 in the direction of the electric field, as shown in Figure 1B. Long axis dl _ parallel 201135290 a υ υ, 179 3 34 74 twf.doc / n Referring to FIG. 1A, the optical material layer 120 is disposed on the light-emitting surface S2 of the Fresnel lens portion 110, and the optical material layer 120 has a single refractive index nx. Further, in the present embodiment, The refractive index ~ is substantially equal to the short-axis refractive index n of the birefringent liquid crystal 112. Further, the optical material layer 120 has a bonding surface S3 and a top surface S4 as shown in Fig. ία. The bonding surface S3 is bonded to the light-emitting surface S2 of the Fresnel lens portion 110, and the top surface S4 is, for example, a plane. In an embodiment, the optical material layer 12, for example, is formed by a stamper in a replica manner, and the fluorophene lens portion 丨1〇 is, for example, by using a birefringent liquid crystal 112.

The injection is formed by the inside of the irregular cavity formed by the joint surface S3. In addition to this, the variable-variable Fresnel lens 1 of the present embodiment further includes a two-electrode layer 13G. In this embodiment, the material of the two-electrode layer 130 is, for example, indium tin oxide (5) ium tin 〇xide, IT 〇), indium zinc oxide (n Zn), or other light-transmitting conductive material: = ear lens portion η. And the optical material layer 12 is disposed = and the fluorescing lens portion 110 is modulated by the refractive index of the polarized light li and the electric field supplied through the electrode layer 130. For example, referring to FIG. 1A, when the two electrodes == the electric field between the two electrode layers 130 is equal to. (= the biaxial direction of the birefringent 〇) liquid crystal in the non-Neer lens unit 110) (shown in Figure 曰曰: the column is positive and parallel to the polarization direction of the partial U.) Straight paper surface of the liquid crystal 112 in the short-axis direction d2 盥 bias. Brother, birefringence, the job light u through the birefringence liquid crystal straight, so the temple effect refractive index is the long-axis refractive index ne. When the polarized light L1 from:: 201135290 twj\}y\jy\19 33474twf.doc/n When the light exiting surface S2 of the mirror portion 110 exits and enters the optical material layer 12〇, since the refractive index of the optical material layer 120 of the present embodiment is n, it is different from The equivalent refractive index of the Fresnel lens portion 110 (for polarized light) causes the polarized light L1 to refract in the interface between the Fresnel lens portion 11 and the optical material layer 12A. In other words, In this embodiment, when the electric field between the two electrode layers 130 is equal to 0, the adjustable phenotype lens 100 is in an open state, and the adjustable variable Fico lens 1 at this time has a similar tradition. The function of the lens (convex lens, concave lens). In this embodiment, the adjustable variable phenanthrene lens _ can be enlarged The display panel. So, when it is necessary to use a plurality of small-sized display surface ear shovel, "0: door: an i-type panel, by displaying the display image of the adjustable variable phenanthrene display panel 2GG, Make the gap between the panels less visible to the human eye. Illustrated == Philippine is applied to the electric field after the cross-section two electrode layer! 30 generates an electric field; ^ and = liquid crystal m (example 4 positive type _ = mirror卩 = bi-fold electric field E direction and the deviation φ direction will be parallel to the birefringence liquid crystal 112 short square, the vibration direction is perpendicular. In other words, the direction is parallel, so when the polarized travel of the two Π and the polarization buckle: When the equivalent refractive index m of the liquid crystal m is large, the double f is wide, and since the optical material of the present embodiment is the same as - the first U is at the rate of η η, so the polarized light L1 does not The interface between the Fresnel lens portion 11 and the optical material layer 120 is refracted, but directly penetrates the Fresnel lens portion 110 and the optical material layer 120. In other words, in the present embodiment, when the pole f 130 is provided When the electric field is applied to the variable-variable Fresnel lens 1 , the two-dimensional Fresnel lens 1 〇〇 is in a closed state. It does not affect the image gold surface t. It is worth mentioning that in the present embodiment, the birefringent germanium liquid crystal & although it is a positive liquid crystal and the single refractive index of the optical material layer i 2 0 is true to the birefringent liquid crystal 112 The short-axis refractive index n. However, in =, the single-refractive index ~ can also be between the short-axis refractive index = the second-radiance ne, that is, the short-axis refractive index n〇<single refractive index ne In this case, the designer X long axis η to answer +, and the latter can also adjust the power % according to the single refractive index η ,, and then adjust the refractive index of Fresnel L1. In this way, (4) Section 11G on the polarized light is also sufficient to use the change of the electric field to open or close the non-Neer lens 1〇〇, since it is also the same, so it will not be described here. On the other hand, in other embodiments, a negative-type liquid crystal is used, wherein the negative-type, night-time and liquid-emitting liquid crystal (1) can also have a refractive index η. . In other words, when the refractive index is in the short axis d2 of the short-axis negative liquid crystal (shown in the figure:, ^^ the two ends of the liquid crystal), the state is as shown in Fig. 1A. There is an electric lying condition and the equivalent refractive index of the _optical u dl ^ type liquid crystal is the long axis _ J, and the direction is parallel, so the birefringence in the negative ear lens portion U0 is known, and the phenanthrene layer 130 provides an electric field again. Fresnel '·, type liquid crystal, and the two-wire nematic lens 100 is in the state of inversion. When the Ge邛 110, the adjustable variable Philippine 201135290 rx\j\jy\jy\19 33474twf.doc/n relative The short axis of the ground liquid crystal: will;:: square negative, the negative end of the liquid crystal is straight to the direction of the paper surface, as shown in Fig. 1Β. Also, the d2 direction is the first with no electric field applied. The polarization direction is the same, so the equivalent refractive index of the negative liquid crystal, the refractive index η. It can be seen that when the lens portion (10) is folded by $=112, it is a negative liquid crystal, and the two electrode layer no is not supplied with electricity; In the case of the portion 110, it can be burnt, the day K 4 is poor, and the non-earth energy can be removed. In other embodiments, the double lens is in a closed state. The liquid crystal 112 can also be a single refractive index η χ of the material layer 120 is between the long axis refraction ΐ ==, that is, the long axis refraction ~ single - = single - Χ refraction ΐ n under the design she also According to the size of the whole electric field of I nx W, the refractive index of Fico's green = ^ light U can be modulated. Thus, 'the same electric field 4 can be used to turn on or off the Philippine lens, due to the applied principle. The description is the same as the example of the description, and therefore is not described here. [First Embodiment] FIG. 2A and FIG. 2B show the cross section of the adjustable Philippine lens and the display panel according to the second embodiment of the present invention. Schematic diagram, wherein the figure is different from the figure = adjustable I;: the phenanthrene lens is a cross-sectional view before and after the electric field is applied. Please refer to FIG. 2A 'this embodiment _ light Philippine lens 〇〇 and diagram The 1A # variable Fico lens 100 is similar, but the main difference between the two is that the optical material layer 320 of the variable-variable Fresnel lens 300 has a single-refractive index ~ substantially equal to the birefringent liquid crystal. Length of 312 -179 33474twf.doc/n 201135290 Axis refractive index ne. In this embodiment, the double-folded crystal That is, when the liquid crystal 312 is, for example, a positive liquid 312 in Fig. 2A, the positive liquid 曰 31 ° 2 & and, when an electric field is applied to the birefringence as shown in Fig. 2, the long axis of 12 D1 is parallel to the direction of the electric field. For the r force, please refer to FIG. 2A. When the two electrode layers 130 are not between the two electrode layers 13A, the electric axis B is in the 'non-Neer lens portion 31, and the liquid crystal is long. The direction dl 昂 偏 ^ u = θ 312 (for example, positive type when the polarization L1 is parallel through the polarization direction of the birefringence, so the equal 嗖 refractive index A has *, raw, 312 at night, 'birefringent liquid crystal 312, etc. Effective refractive index η $ ^ refractive index ~. Since the Ϊ L1 of the birefringent liquid crystal 312 does not have an electric field equal to 〇 between the interface of the reduced-lens lens portion 3i0 and the optical material reed 32〇, it can be 3;!?::: when the state of the two-electrode layer 130, Will affect the shadow lens 3GG is in the closed face - ^ adjustable variable Philippine lens is shown in section 2B after the applied electric field 'When the two thunder spurs 130 P are arched, the foot and the 屯 pole layer 130 When the electric field of the package (4) is 30, the refractive liquid crystal 312 is generated (for example, the short birefringence liquid crystal 312 of the lenticular lens portion 310 is perpendicular to the short direction. In other words, 'the tenth ray so that the polarized light' is passed through the birefringence liquid crystal , Fold 11 201135290 -------1 /9 33474twf.doc / n The equivalent refractive index of the liquid crystal 312 is the short-axis refractive index n < ^ due to the refractive index of the optical material layer 320 ~ and the birefringent liquid crystal 312 The equivalent refractive index ^ the short-axis refractive index n is different, so the polarized light L1 is refracted at the interface of the Fico lens portion 31 and the optical material layer 320. That is, in the present embodiment, the two-electrode layer 130 When the electric field is supplied to the adjustable variable Philippine lens ^, the adjustable variable Fresnel lens 3 〇〇 is open It is worth mentioning that, in the present embodiment, the birefringent liquid crystal 312 is a positive liquid crystal and the single-index of the optical material layer 32 is substantially the long-axis refractive index ne of the birefringent liquid crystal 312. In other cases, 'single refractive index ηχ can also be between the short-axis refractive index η, the rate ne, the foot, the short-axis refractive index nQ<single-refracting+long-axis folding, rate ne. In this case, The designer can also adjust the brightness of the lens portion 310 according to the single refractive index 进而11^ field size', and can also use the electric field to switch the spectacles to the mirror 300' due to the applied principle and the foregoing example. In the present embodiment, the birefringent liquid crystal 312 is a positive-living liquid crystal, but in other embodiments, the birefringent liquid crystal 312 can also be a negative type. Liquid crystal, wherein the long-axis refractive index of the negative liquid crystal is smaller than the short-axis refractive index η. In other words, when an electric field is applied to both ends of the negative liquid crystal, the short axis d2 of the negative liquid crystal is parallel to the direction of the electric field, such as Figure 2Α. That is, = the long axis dl of the liquid crystal is applied In the case of the polarized light_polarization direction, the equivalent refractive index of the negative liquid crystal is the long-axis refractive index, and it is understood that the birefringent liquid crystal 312 in the lens portion u is a negative liquid crystal and the two electrodes The layer 13G in turn provides an electric field to the fluorescing lens portion 12 201135290 /\uvyvy 179 33474tuf.doc/n lenticular lens _ is in a closed state. == at the time of two vibrations, the equivalent refractive index of the negative liquid crystal is two l:, liquid crystal 1 The birefringence liquid crystal 312 in the non-ear lens portion 110. The negative-variant Ficoll lens is in the open_= lens alone, and can be adjusted to be ^ type ίί and in the example 'birefringent liquid crystal 312 can also be =, the rate η. between. That is to say, the length of the second sample can also be based on the single case. In this case, the designer can change the Fresnel with the ear lens portion 31G to make use of the change of the electric field = the same principle can be applied to the former _ sub__^: Fine, because the third embodiment is the adjustable embodiment of the third embodiment of the present invention, which is an adjustable surface diagram, wherein FIG. 3A and the figure are referred to FIG. 3A, and the mirror has a section for applying an electric field. schematic diagram. Please use the light U-pass and the ί% (four) Checo lens to make the - polarization. 4^ can be, the Philippine buried lens _ by including the adjustable 410, the non-obscenity lens and the layer of optical material 13 201135290 33474twf.doc/n 430. In the present embodiment, the light ray L2 is, for example, light passing through the display panel 5, and the display panel 500 is, for example, a liquid crystal display panel. As shown in Fig. 3A, the variable polarization unit 41 is adapted to illuminate the illuminating light U. It can touch the polarization direction of the light-emitting unit 41G light L3, in which the direction of the polarization of the polarized light ^ or the direction parallel to the paper surface. In addition, Ficoll has a light entrance S1 and a light exit surface S2. In addition to this, it has birefringence, and the polarized light L3 enters the phenanthrene lens portion 420 by the human filament si, and leaves the Fresnel lens portion 42A from the light exit surface S2. In the present embodiment, the material of the Fico lens portion 42A includes a birefringent liquid crystal 422, wherein the birefringent liquid crystal 422 is, for example, a positive liquid crystal f crystal. That is to say 'in Fig. 3A' the birefringent liquid crystal 412 = the refractive index ne is greater or smaller than the short-axis refractive index n. . In addition, as shown in Figs. 2 and 3B, the long axis of the birefringent liquid crystal 412 of the present embodiment is fixed in the direction of the polarization (4) of the polarized light L3, and the arrangement of the refractive liquid crystal 412 is fixed. With continued reference to FIG. 3A, the optical material layer is disposed on the light exit surface S2 of the fluorescing ear: 0, and the optical material layer 42 has a single fold κ nx. Further, in the present embodiment, the single refractive index, the refractive index n of the refractive liquid crystal 422. . In addition to this, the material layer 43G has a joint surface S3 and a top surface and 7 § main. The surface S3 is joined to the light exit surface S2 of the Fresnel lens portion 420, and 430 S4 is, for example, a flat surface. In the present embodiment, the optical material layer is formed by a stamper (referred to as (4) and the phenanthrene lens portion 420 is, for example, by birefringence 14 201135290

Auuyuyl 79 33474 twf.doc/n Liquid crystal 422 is implanted into the irregular cavity formed by the bonding surface S3.

In addition to this, the variable polarization unit 41 of the present embodiment includes a liquid crystal cell 412. Further, the two electrode layers 23A are also disposed on opposite surfaces of the liquid crystal cell 412, respectively. The material of the electrode layer Mo is, for example, a light-transmitting conductive material such as indium tin oxide (ITO) or Indium Zinc Oxide (IZO). As shown in FIG. 3, the variable polarization unit 410 is adapted to provide polarized light L3 of different polarization directions, such that the Fresnel lens portion 420 changes the refractive index of the polarized light u as an example. Please refer to FIG. 3A. When a voltage is applied to the two-electrode layer 230 such that the electric field provided by the two-electrode layer 23 is biased to a variable polarization, the filament dl of the birefringent liquid crystal 412a (liquid crystal) in the liquid crystal cell 412 is along the electric field. The direction (that is, the direction of the parallel paper) = column, ,, the polarization direction of the L3 of the partial county changes with the polarization direction of the light u. For example, when the polarization direction of the light beam L' is perpendicular to the direction of the paper surface, the polarization direction of the touch-off type is also the direction of the vertical paper surface. So - come: 3 into the non-> ear lens part, the birefringence 荨 effect refractive index is the rate η of the short-axis refractive index 2 (four) from the refracted light of the material layer 43G L ° 3 not; The refractive index is the same, so the polarization occurs in the refraction phenomenon two H42G and the interface of the optical material layer 43Q. In other words, in the present embodiment, when the electric field supplied by the two electrode layer 15 201135290 33474twf.doc/n is applied to the variable polarization unit 41, the variable-variable Fresnel lens 400 is in a closed state. Therefore, it will not affect the image surface. Figure 3B is a schematic cross-sectional view of an adjustable variable Fresnel lens when no electric field is applied. As shown in FIG. 3B, when the bias voltage between the two electrode layers 23 is not applied such that the electric field between the two electrode layers 230 is equal to 〇 (ie, the birefringence liquid crystal 412a in the liquid cell 412 changes). For example, when the polarization direction of the light beam L2 is the square X direction of the vertical paper surface, the polarization direction of the polarized light L3 passing through the variable polarization unit 41 is parallel to the direction of the paper surface. When the polarized light L3 enters the Fresnel lens portion 420, the equivalent refractive index of the birefringent liquid crystal 422 is the long-axis refractive index ne. Due to the refractive index η of the optical material layer 430, and the birefringent liquid crystal 422, etc. Since the effective refractive index ne is different, the polarized light L3 is refracted at the interface between the Fresnel lens portion 420 and the optical material layer 430. In other words, in the present embodiment, when the two-electrode layer 230 provides an electric field to be tunable In the case of the polarization unit 410, the adjustable variable Fresnel lens 4 is in an open state, and the adjustable variable Fresnel lens 400 at this time has a function similar to a conventional lens (convex lens, concave lens). Adjustable variant in the open state The Neel lens 400 can enlarge the image plane of the display panel 500. Thus, when a plurality of small-size display panels 500 need to be combined into a single large panel: two can be turned on by the adjustable variable Philippine buried lens 400 The image is displayed in an enlarged manner, so that the joint gap between the panels is less noticeable to the human eye. It is worth mentioning that in the present embodiment, the birefringent liquid crystal 422 is, for example, a positive liquid crystal, and the single refraction of the optical material layer 430 Rate ηχ substantially 16 201135290 nuvywng 33474twf.doc/n Same as the long single refractive index of the birefringent liquid crystal 422 2 =: = long axis fold: two is the 'short axis refractive index'. < single-refractive index Two 1 outside 'in other real _ towel, birefringent smectic 422 can also be 3 ίί: 'The negative axis refractive index of the negative medium in the 〜 is smaller than the refractive index η of the short axis refractive axis η. That is, the long axis The refractive index nt is earlier than the refractive index η χ < short axis refractive index n. in the above τ μ e

According to the single refractive index & design bi-fold dimorphic liquid crystal 4: J for polarized light of different polarization directions, so that Fico, == luminosity change. In this way, the same can be _ field = = = = · Because the applied principle and the above example, in addition to the ' _ this real double-practice liquid crystal fairy is in the case of = two electricity: change the polarization direction of the light L2 , === The birefringence liquid crystal 422a can also change the polarization direction of the light beam L2 in the presence of an applied electric field. [Fourth Embodiment] FIG. 4B and FIG. 4B are schematic cross-sectional views showing a variably-changing lens and a display panel according to a fourth embodiment of the present invention, wherein FIG. A schematic diagram of the cross-section of the ear lens with or without an applied electric field. : 照照图4 八's adjustable feidu ear lens of this embodiment_盘图& 17 201135290 ^yjyyjy\19 33474twf.doc/n adjustable variable Fresnel lens 4 However, the main difference between the two is that the single refractive index nx is substantially equal to the n of the 雔2 prefabricated layer 630. The long-axis refractive index of the 折射-refractive liquid crystal 622 A1e polarization = two (four) is to provide a refractive index change of different U. For example, the non-lens portion (10) is applied to the polarizing light to the two-electrode layer 230 to cause the electric field E to be generated when a birefringent core in the liquid crystal cell 612 is applied.

Direction (ie, line: 2: crystal:: = 2 The polarization direction is the same as the polarization direction of the light L2, not J ί ==: The polarized light L3 enters the Fico lens portion 62〇: the refractive liquid crystal 622 The equivalent refractive index is short = ^ material layer _ refractive index ne and birefringence liquid crystal milk = ^ rate n. Different 'so polarized light L3 will be refracted in the Fico lens part (four) disk: material layer 630 interface That is, in the embodiment, when the electrode layer 230 provides an electric field to the variable polarization unit 61, the variable-variable Fresnel lens 6 is turned on. - Figure 4B is adjustable. A cross-sectional view of the phenanthrene lens before the application of the electric field. As shown in Fig. 4B, when the electric field between the two electrode layers 23 is equal to 〇j, that is, E = 0), the birefringent liquid crystal 6i2a in the liquid crystal cell 612 is changed. Also the polarization direction of the light L2. As a result, when the polarized light B enters the phenanthrene lens portion 620, the equivalent of the birefringent liquid crystal 622 is the refractive index ne. Due to the layer 67 of optical material. The refractive index ~ and double 18 201135290 Auuyuyl79 33474twf.doc / n crystal 622 equivalent refractive index ~ the same, so the polarized light L3 will not be refracted in the interface between the Philippine lens portion (10) and the optical material layer 63 ί Instead, it directly penetrates the Fico Wei section 62〇 with the optical material layer (10). That is, in the embodiment, when the electric field provided by the two-electrode layer 23G gives an adjustable polarization polarization of 70 610, the adjustable phenotype lens (4) is in a closed state, so that the image defect is not affected. It is worth mentioning that in the present embodiment, the birefringent liquid crystal is, for example, a erbium-type liquid crystal, and the single refractive index of the optical material layer 63 , is the long-axis refractive index 〜 of the birefringent liquid crystal 622. However, x = = 之一 single gate refractive index ~ can also be between short axis refraction - 3: two? 'that is, 'short axis refractive index - < - negative: [b: in the example, birefringence The liquid crystal 422 may also be a long-axis refractive index ne of the de-type liquid crystal smaller than the short-axis refraction two η. Further, the optical material layer (4) has a single-refractive index refractive index 〜 and a short-axis refractive index η. Between, that is, ^ long early - refractive index η χ &lt; short axis refractive index η 〇. In the above case, f = can also be designed according to the single-refractive index η χ to design the bi-fold secret liquid day = the arrangement of the lens portion 620, and by adjusting the variable polarization element 61 2 * ' wide wide ear lens portion (10) pair The refractive index of the polarization i changes. In this way, the same ladder 'because of the applied principle and the former her I plus = 2, the birefringent liquid crystal milk a of this embodiment is changing the polarization direction of the light L2 under the condition of ', under the force, however, in other 19 201135290 rt (ju7^179 33474twf.doc/n In the example, 'birefringent liquid crystal 622a can also change the polarization direction of light L2 in the presence of an applied electric field. The above is 'by the embodiment of the present invention' The adjustable variable Fresnel lens is suitable for the field (four) or adjustable partial fresh silk to change the refractive index of the polarized light of the fluorescing lens portion, so that the adjustable variable Fresnel lens can be determined according to the design requirements. The present invention has been disclosed in the above embodiments, and is not intended to limit the present invention. Any one of ordinary skill in the art can make some changes without departing from the spirit and scope of the invention. And the retouching of the invention, the scope of protection of Ben Lu's invention is subject to the definition of the attached towel. [1] FIG. 1A is a modified variable Fresnel lens according to a first embodiment of the present invention. Schematic representation with the display panel ., FIG. 1B shows green sectional view according to another variant embodiment of the adjustable ear phenanthrene kinky lens with a first embodiment of the panel are not significant to the invention.

FIG. 1C is an enlarged schematic view of a birefringent liquid crystal. 2A is a cross-sectional view showing a variably variable Fresnel display panel according to a second embodiment of the present invention. 2B is another schematic cross-sectional view of a variegated fluorescing otoscope and a display panel according to a second embodiment of the present invention. FIG. 3A is a variably variable Fresnel display panel according to a third embodiment of the present invention. 1 ^ 3B is another cross-sectional view of the adjustable mirror and display panel of the third embodiment of the present invention. 20 / 35 201135290 179 33474twf.doc / n FIG. 4A is a fourth embodiment of the present invention Adjustable variant - a schematic cross-sectional view of the display panel. The ear lens and FIG. 4B are another cross-sectional view of the mirror, the display panel and the display panel according to the fourth embodiment of the present invention. Description]

100, 300, 400, 600: Fresnel lens 110, 310, 420: Fresnel lens portion 112, 312, 412a, 422, 612a, 622 · Birefringence 120, 320, 430, 630: optical material layer曰130, 230: electrode layers 200, 500: display panels 410, 610: variably variable polarization units 412, 612: liquid crystal cell dl · long axis d2 · short axis

L1, L3: polarized light L2: light 51: light incident surface 52: light exit surface 53: joint surface St top surface ne · long axis refractive index n. Short axis refractive index nx .Refractive index 21

Claims (1)

Rl79 33474twf.doc/n 201135290 VII. Patent application: This can be changed to ^= ear*^1 ear lens, suitable for passing a polarized light, - Fresnel lens part, and one person &amp; The lure lens portion has a double (four) property, the light exiting surface, wherein the Fresnel lens portion, and the light from the light exiting surface enters; the phenanthrene: 1 lens portion of the light-refracting mirror 2. For example, in the scope of the patent application, the ear lens of the ear lens has a long-axis refractive index ne and a night 曰曰. The positive liquid crystal device ne is larger than the short-axis refractive index n. . , 卞n. And the long-axis refractive index mirror, the variant is Philippine; the shot; the early--up is equal to the short-hearted, the refractive index is 22 19 33474 (Avf.doc/n 201135290 7. 6-item refractory, ft long-axis refractive index ne<single-refracted ear δ·如_ Please specialize in the sixth item of rate V mirror, where the single-refractive index is equal to the edge-modulated fluorescing index Ne. The quality is specific to the short-axis refractive index\ or the long-axis mirror, and the adjustable deformation type of the scorpion is disposed in the two-electrode portion and the optical material is refracted, wherein the mirror Adjustable--the joint surface and the top surface of the pheno-peripheral lens, which is a plane. The anterior surface is joined, and the top surface of the adjustable variant "^: ear lens" is adapted to let light pass, Light, converted into a -polarized-Fresnel lens section, 1 , - the polarization direction of the 振 flat illuminating light; wherein entering the Fresnel clock section is a Goode:, has - into the light surface and - the light surface, the Philippine The accompaniment lens portion is; and the polarization ί is adapted to the FCo lens portion by the illuminating surface of the illuminating surface, and the lens portion is Polarized light === light, above 12. As claimed in patent 1; =-·= rate ~. Adjustable variant Fresnel described in 11th class of the younger brother 23 1/9 33474twf.doc/n 201135290 Lens lens part The material comprises a refractive liquid crystal. The lens 'where the birefringent liquid crystal comprises a positive liquid crystal full-long-axis refractive index ne and a short-axis refractive index: ne is greater than the short-axis refractive index n. The variable phenotype described in the thirteenth patent range: the ear lens 'where the refractive index n 〇 · single fold ear 15. As claimed in the thirteenth item = by the refractive index ne. lens, its towel list - refractive index n-type Fresnel axis refractive index ne. Early ~ substantially equal to short-axis refractive index η. or length 16. The lens of claim 12, wherein the birefringent liquid crystal includes - negative type The liquid ear has a long-axis refractive index ~ and - short-axis refractive index / two, the liquid crystal ne is smaller than the short-axis refractive index η. 忒 long-axis refractive index 17. As described in claim 16, the lens , where the long-axis refractive index η"., the genre of the non-Neral 18. As in the patent application range U, tX &lt; short-axis refraction Rate ~. Mirror, wherein the single-refractive index can be adjusted to change the refractive index of the fluorescein to the ne. The scalloped ~ or the long axis of the shell is as follows: as in the patent application range u lens '; - Bonding: the face ear and the (four) lens portion of the "= table 20. As claimed in the scope of the nth scope of the mirror 'where the adjustable variable polarization unit includes the type of Philippine