WO2017026677A1 - Plaque de polarisation à grille de fils à double-face, et élément optique la comprenant - Google Patents

Plaque de polarisation à grille de fils à double-face, et élément optique la comprenant Download PDF

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Publication number
WO2017026677A1
WO2017026677A1 PCT/KR2016/007701 KR2016007701W WO2017026677A1 WO 2017026677 A1 WO2017026677 A1 WO 2017026677A1 KR 2016007701 W KR2016007701 W KR 2016007701W WO 2017026677 A1 WO2017026677 A1 WO 2017026677A1
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lattice
metal
wire grid
convex portion
double
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PCT/KR2016/007701
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English (en)
Korean (ko)
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김경종
황홍구
김시민
채헌승
남시욱
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코오롱인더스트리 주식회사
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Publication of WO2017026677A1 publication Critical patent/WO2017026677A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors

Definitions

  • the present invention relates to a wire grid polarizer and an optical component including the same, and more particularly, to a double-sided nano wire grid polarizer and an optical component including the same that can simultaneously achieve the polarization efficiency and brightness enhancement effect.
  • the polarizing plate transmits or reflects light in a specific direction among electromagnetic waves.
  • two polarizing plates are used in a liquid crystal display (LCD), so that liquid crystals in the liquid crystal cell cause optical interaction to implement an image.
  • LCD liquid crystal display
  • Polarizers using absorption type polarizing films are employed in polarizers that are mainly used in liquid crystal displays (LCDs), and in the case of absorption type polarizing films, iodine or dichroic dyes are adsorbed on polyvinyl alcohol (PVA) films, and a predetermined direction thereof is used. It is prepared by stretching. In this case, however, the mechanical strength of the transmission axis itself is weak, shrinks due to heat or moisture, and the polarization function is significantly reduced. Therefore, the light utilization efficiency is theoretically 50 because only the light vibrating in a specific direction passes. Can't exceed%
  • a wire grid polarizer (hereinafter, WGP) refers to an array in which metal wires are arranged in parallel, and polarization components parallel to the metal grid are reflected and vertical polarization components are transmitted, and the reflected light is reused. It is possible to manufacture an LCD having high luminance characteristics.
  • WGP light absorption occurs when the arrangement period of the metal lattice, that is, the wire spacing is close to or larger than the wavelength of the incident electromagnetic wave, and the loss of light due to absorption is minimized only when the arrangement period of the metal lattice is sufficiently small.
  • a first grating layer having at least one first lattice pattern on a substrate and a second metal layer formed on the first lattice pattern A second lattice layer having at least one lattice pattern, and a light absorbing layer stacked on the second lattice layer to absorb light from the outside, thereby improving luminance without decreasing contrast ratio (CR).
  • WGP which can be disclosed, and in the Republic of Korea Patent No.
  • the shape of the pattern is different for each region, and the period (P), height (H), width (W) and duty cycle (DC) of the pattern Disclosed is a liquid crystal display device capable of improving polarization performance and light efficiency by including at least one of different wire grid polarizers for each region.
  • the polarization efficiency for determining the contrast ratio (CR) of the display may be excellent as the S polarization transmittance (T S ) is as low as possible, and the brightness of the display, that is, the brightness is high, the P polarization transmittance (T P ). The more it can be improved.
  • P polarization is 100% transmitted and S polarization is not 100% absorbed or reflected. Therefore, in order to improve the P polarization transmittance (T P ), reducing the width and height of the metal lattice increases S polarization. Transmittance (T S ) can also be increased together, so that the polarization efficiency is rather low, and when the line width is widened to increase the polarization efficiency, the P polarization transmittance is lowered. That is, the P polarization transmittance and the polarization efficiency act in a trade-off relationship.
  • Theoretical methods to improve the P polarization transmittance (T P ) and the polarization efficiency simultaneously are to reduce the pitch (Ptich, distance from the lattice start point to the next lattice start point) at the same line width, that is, to reduce the distance between metal lattice. Can be.
  • the pitch Ptich, distance from the lattice start point to the next lattice start point
  • T S S polarization transmittance transmittance
  • the present invention includes a pattern capable of stacking more metals in a line width and pitch of the same range, and the metal grids facing each other based on the substrate layer without substantially controlling the pitch of the pattern. By staggering between them, it is to provide an effect as if the lattice spacing is narrowed to provide a double-sided wire grid polarizer plate and an optical component including the same P-transmittance and polarization efficiency of the trade-off relationship at the same time improved.
  • a first preferred embodiment of the present invention for achieving the above problem is the substrate layer 110; A resin layer 120 formed on both sides of the base layer and including a concave-convex pattern by the lattice-shaped convex portion 200; And a metal lattice 130 pattern layer formed on the lattice-shaped convex portions of the resin layer, wherein the lattice-shaped convex portion 200 is curved at least in one direction of the left side and the right side of the convex portion, It is a double-sided wire grid polarizer, characterized in that the irregular shape including one or more sections inclined to form an acute angle.
  • the grid-shaped convex part 200 includes at least one side protrusion and side depressions by at least one side part including at least one section of an inclined or curved section, and the side protrusions and side depressions
  • the metal lattice may be formed in contact with the lattice-shaped convex portion, and may be preferably formed so that the lamination width of the lattice-shaped convex portion formed in the horizontal direction at the largest protrusion by filling the metal is 10 nm to 100 nm.
  • the width equal to the line width of each metal grid in the vertical direction from the bottom of all the metal grid 130 formed on both sides of the wire grid unit 100 Assume that a virtual shadow formed in any grid is to form a shadow grid 300 having a width extended by one or more adjacent shadows that overlap or abut the interface. Can be.
  • the double-sided wire grid polarizing plate may satisfy the F.F (Fill Factor) value calculated by Equation 1 below 1.05.
  • the metal grating 130 has a height 131 per unit grating 1 to 1000 nm, a line width 132 is 1 to 140 nm, and the next grating starts at a point where any grating starts.
  • the pitch 133 which is defined as the distance to the point, may be 50 to 200 nm.
  • the double-sided wire grid polarizer according to the first embodiment may have a P polarization transmittance of 50% to 99%, an S polarization transmittance of less than 1%, and a polarization efficiency of 95% to 100%.
  • the present invention makes the optical part including the double-sided wire grid polarizer according to the first embodiment a second preferred embodiment of the present invention, and the optical part according to the second embodiment has a contrast.
  • the contrast ratio (CR) may be 500 to 1,000,000.
  • the polarization efficiency can be improved without decreasing the P polarization transmittance.
  • the P polarization transmittance and the polarization efficiency which are considered to be a conventional trade-off relationship, can be improved simultaneously without substantially controlling the pitch value of the grating.
  • FIG. 1 is a cross-sectional view illustrating an example of a double-sided wire grid polarizing plate of the present invention, in which the formation directions of metal grids facing each other based on the base layer have opposite directions to each other.
  • FIG. 2 is a perspective view of FIG. 1.
  • FIG 3 is a cross-sectional view illustrating an example of a double-sided wire grid polarizer of the present invention, in which the formation directions of metal grids facing each other based on the base layer have the same direction.
  • FIG. 4 is a cross-sectional view showing an example of various shapes of the grid-shaped convex portion 200 of the present invention.
  • FIG. 5 is a cross-sectional view showing the relationship between the maximum protrusions 210 and the maximum depressions 220 in any of the grid-shaped convex portions with various shapes of the grid-shaped convex portion 200 of the present invention.
  • FIG. 6 is an enlarged view of a portion of the wire grid polarizer of the present invention and virtual shadows S1 and S2 vertically formed toward the bottom surface from a grid of positional positions facing each other and overlap with each other to form a single shadow grid 300. Is an imaginary diagram showing the formation of.
  • metal grid Pitch 134 vertical gap between metal grids
  • the wire grid of the present invention has a grid-shaped convex portion 200 having an irregular shape including one or more sections in which at least one side surface portion of the convex portion is curved or inclined to form an acute angle with the ground. It can be made a more preferable feature.
  • WGP which is composed of a single layer
  • the uneven pattern must be formed very precisely in order to narrow the gap between the wire grids or the metal grids in order to increase the polarization efficiency.However, it is very difficult to realize a more precise pattern in the microstructure of the micro or nano size. It is difficult.
  • the P polarization transmittance may decrease. Accordingly, there is a limit to improving P polarization transmittance and polarization efficiency through a single layer of WGP.
  • the metal grids facing each other are staggered between the grid gaps of each other, so that the gaps between the grids are reduced as a whole.
  • the wire grid polarizer of the present invention may have a P polarization transmittance of 50% to 99%, an S polarization transmittance of less than 1%, and a polarization efficiency of 95% to 100%. Accordingly, when applied to an optical component such as a liquid crystal display device, it is possible to provide a display excellent in brightness and CR characteristics.
  • the droplet display device in the present invention compared to the PVA-type absorption polarizing film The relative luminance may be 100 to 180%, and the contrast ratio may be 500 to 1,000,000.
  • the present invention provides an optical component including the wire grid polarizer.
  • the optical part of the present invention may be representatively a liquid crystal display device, but is not necessarily limited thereto.
  • the double-sided WGP of the present invention is not a shape in which the lattice-shaped convex part 200 has a monotonous side part as in the prior art, but is vertically inclined or curved at an oblique side surface. As it may have a pattern different from the conventional one.
  • the grid-shaped convex portion forms a valley on at least one side of the left side and the right side by the unique shape of the grid-shaped convex portion, and since the formed valley may be filled with metal, the line width of the relatively same range, Compared with the conventional WGP showing the height and pitch, the metal lamination amount can be increased efficiently, and as a result, the polarization efficiency can be improved without lowering the P polarization transmittance.
  • the grid-shaped convex portion 200 may include at least one of the side protrusion and the side recessed portion by the side portion including at least one section inclined or curved.
  • the side protrusions and the side depressions described in the present invention are judged as the side protrusions, and the portions forming the peaks from the side surfaces of the lattice convex portions, respectively, and the side grooves are formed.
  • the protrusion and the depression are in the form of only one, it is preferable that the depression is located closer to the inward direction of the lattice convex portion, but if the protrusion includes two or more protrusions or depressions, any protrusion is lattice than any depression. It may be located closer to the inward direction of the convex portion. That is, the protrusion and the depression are not necessarily determined according to the relative position, and it is preferable to judge by the shape.
  • the lattice-shaped convex portions do not necessarily coincide with each other in the shape of the lattice formed on the other surface.
  • the shape of the lattice-shaped convex portion is not necessarily symmetrical, and may have irregularities in the shape of the protrusions and the depressions in the left and right directions or may have the protrusions and the depressions in only one direction.
  • the distance deviation in the horizontal direction between the largest protrusion and the largest depression, that is, the distance between P1 and P2 is less than 1 nm
  • the effect of improving the amount of metal lamination by the depression is insignificant, and the depth is deeply recessed so that the distance exceeds 30 nm.
  • Forming a portion is very difficult to implement in a micropattern and even when formed, it can be difficult to completely fill the metal up to the depth of the indentation.
  • the metal is filled in the depression so that the amount of stacking of the metal can be easily increased as compared with the general pattern having the same line width and pitch.
  • WGP since the polarization and reflection of light are determined by the metal pattern layer, when the stacking amount of metal is increased, the reflectance may be improved and the polarization efficiency may be improved.
  • the amount of stacking of metal is excessively increased to improve the reflectance. In this case, if the light transmission period becomes too narrow, the luminance may be lowered.
  • the metal is filled in the valley formed on the side surface without narrowing the transmission section of the light, the polarization efficiency can be improved without decreasing the luminance in the same range of pitch and line width conditions.
  • the lattice-shaped convex portion 200 has the width of the convex portion at a constant ratio from the upper end to the lower end with respect to the ground and the horizontal direction based on the convex cross-sectional shape as illustrated in FIG. 4.
  • the decreasing shape or the convex portion may be a shape inclined to one side while maintaining a constant width.
  • all inclined sections of both sides form an acute angle with the ground, and the lattice convex part is inclined to one side while maintaining a constant width.
  • an inclination that forms an acute angle with the ground is generated from the side of the lattice-shaped convex part.
  • the side portion includes a curved section, the width of the convex portion increases and decreases relative to the ground and the horizontal direction based on the cross-sectional shape of the convex portion, the section in which the width of the convex portion increases and is constant, the convex portion A section where the width decreases and increases, a section where the width of the convexity decreases, a section that becomes constant, the width of the convexity is constant, a section that increases, the width of the convexity is constant, the section that decreases and the constant width is maintained, but the inclined direction of the convexity is changed. It may have a shape including at least one curved section of the section. At this time, the curved section in the present invention may mean both the pointed and curved form connected.
  • the line width is 5 to 100nm
  • the height in the direction perpendicular to the surface is 10 to 500nm in terms of being able to imprint close to the desired shape.
  • the line width and height of the lattice-shaped convex portion being too small outside the above range is very difficult to implement the pattern itself, and the pattern aggregation may occur when the line width and height are too large outside the above range.
  • the grid-shaped convex portion is defined as the distance from the leftmost vertical line drawn from an arbitrary convex portion to the left-most vertical line drawn from an adjacent lattice convex portion when drawing an imaginary vertical line perpendicular to the ground while contacting the outer edge of the convex portion. It may be desirable for the pitch value to be 20-200 nm. It is difficult to secure a light transmission path after the metal lattice having a pitch value of less than 20 nm, and when the pitch value exceeds 200 nm, it may be difficult to expect excellent polarization characteristics (extinction ratio) for visible light.
  • the metal grating 130 has a height 131 per unit grid of 1 to 1000 nm, a line width 132 of 1 to 140 nm, and a point from which an arbitrary grating starts to a point where the next grating starts.
  • the pitch 133 which is defined as a distance of, may be 50 to 200 nm.
  • a more preferable height of the metal lattice may be 10 to 500 nm and a line width of 1 to 100 nm, and a more preferable height of 40 to 250 nm and a line width of 30 to 80 nm.
  • the polarization efficiency can be increased while maintaining a high P polarization transmittance.
  • the spacing between the gratings positioned horizontally is advantageous to satisfy the above range, more preferably 50 to 200 nm, more preferably 80 to 150 nm.
  • the metal lattice 130 has a vertical gap (134) with respect to the lattice on the opposite side facing each other with respect to the vertical direction from the arbitrary lattice centers, and may be 0.05 to 500 ⁇ m, for thinning More preferably, it may be 0.05 to 300 ⁇ m, more preferably 0.3 to 150 ⁇ m, but is not necessarily limited thereto.
  • the metal grating 120 is formed in contact with the lattice convex portion 200 of the WGP, wherein the metal is filled from the maximum depression of the lattice convex portion in the horizontal direction from the maximum protrusion
  • the lamination width of the metal lattice i.e., formed so that the thickness of the metal lattice from the largest protrusion of the lattice-shaped convex portion is 10 nm to 100 nm is preferable in view of more effectively improving polarization efficiency.
  • the metal lattice does not necessarily have to be formed higher than the lattice convex portion, the metal lattice may be formed to have a thickness of 10 nm to 200 m in the vertical direction from the uppermost end of the lattice convex portion.
  • the metal lattice pattern may be formed from any one metal or conductor selected from the group consisting of aluminum, copper, chromium, platinum, gold, silver, nickel and alloys thereof, taking into consideration reflectance and economical efficiency. It may be more desirable to use aluminum and alloys thereof.
  • the method of stacking a metal lead on the curable resin includes a method of sputtering, vacuum thermal deposition, or a dry etching method of simultaneously etching a polymer and a metal to form a metal lead layer, and the method of manufacturing the same is not limited thereto.
  • the metal grating is in the form of a lattice such as a prism and a lenticular, and is formed on the convex portion or the concave portion of the resin layer pattern, and the shape thereof may be varied by the deposition method, so that the cross-sectional shape of the metal grating is particularly limited. It doesn't work.
  • the cross-sectional shape of the pattern is a shape in which a semicircle, an ellipse, a regular polygon, a polygon, a rounded polygon, a 'b' shape, a fan shape, a boomerang shape, a dome shape, and a sinusoidal shape are repeated.
  • the pattern may be repeated in distinctly angular form or may be smoothly connected and repeated in a curved curve.
  • the metal lattice may be formed to face each other with respect to each other centering the substrate layer as shown in Figure 1 and 2, or may be formed in the same direction as shown in Figure 3 .
  • the direction of formation of the metal lattice facing each other is not limited in the present invention, and may be determined depending on which direction the depression is formed in the lattice-shaped convex portions formed on each surface, which can be selected by an operator as necessary.
  • the metal lattice pattern layer in the present invention is basically sufficient to satisfy the above range, except that all metal lattice 130 formed on both sides of the wire grid polarizer of the present invention are vertically directed toward the bottom.
  • a virtual shadow having a width equal to the line width of the metal grid is formed, the virtual shadow S1 formed in any grid present on one surface of the substrate is overlapped by the shadow S2 formed in the grid on the opposite surface, or It may be desirable to be able to form a shadow grid (Shadow grid, 300) having a line width of the metal grid line width or more in contact with the interface surface in terms of improving the P polarization transmittance and polarization efficiency.
  • the concept of the shadow grid introduced in the present invention can be more easily understood with reference to FIG.
  • the scope of the present invention is not necessarily limited by FIG.
  • the metal lattice pattern on the top surface of the base layer is regarded as the second layer, and the metal lattice formed on the opposite side is referred to as the second layer.
  • the shadow of the grid is indicated by S2 and the shadow of the grid located on S1 and the second layer.
  • Shadows S1 and S2 overlap each other to form shadows connected as one, as shown in FIG. 6.
  • shadows S1 or S2 by one lattice due to overlapping or border contact (not shown) of the shadows are formed.
  • Shadows that have a width that extends beyond the width of the shadow are defined as 'shadow grids' (300).
  • the width of the shadow grating is not an actual line width of each metal grating, the width of the shadow grating may serve as a factor for narrowing the gap between the metal gratings without affecting the P polarization transmittance at all.
  • the shadow grids may also overlap or taste with each other, and in this case, shadows may be formed over the entire bottom surface, and higher polarization efficiency may be achieved when all shadows are formed on the bottom surface.
  • the wire grid polarizing plate preferably has a F.F (Fill Factor) value calculated by Equation 1 below by the concept of the shadow grating.
  • fill factor represents the ratio of the metal lattice line width to the pitch of the metal lattice in a single layer, and the closer the value of F.F is to 1, the higher the polarization efficiency is. According to this analysis, at the same pitch, the larger the line width, the closer the value of F.F can be.
  • the present invention which does not control the pitch, it may be more easily understood to apply the ratio of the line width of the shadow grating to the line width of the metal grating, rather than the conventional F.F calculation formula that substitutes the pitch value.
  • FF is the line width of the shadow grating to the line width of the metal grating. It is to be interpreted as the ratio of.
  • the value of FF is 1.05 or more. It is preferable.
  • the base layer 110 is a triacetyl cellulose (TAC) film, polymethyl methacrylate (PMMA) film, polyethylene terephthalate film, polycarbonate film, polypropylene film, polyethylene film, polystyrene film, polyepoxy film , Cyclic olefin polymer (COP) film, cyclic olefin copolymer (COC) film, copolymer film of polycarbonate resin and cyclic olefin polymer, and air of polycarbonate resin and cyclic olefin copolymer It may be any transparent film or glass selected from the group comprising the coalescence film.
  • TAC triacetyl cellulose
  • PMMA polymethyl methacrylate
  • PMMA polymethyl methacrylate
  • PMMA polyethylene terephthalate film
  • polycarbonate film polypropylene film
  • polyethylene film polystyrene film
  • polyepoxy film polyepoxy film
  • the metal pattern layer is formed on both sides, the light passing through the WGP of the present invention passes through the metal lattice and passes through the base layer, so that the base layer does not interfere with the polarization characteristic.
  • Isotropic substrates having a thickness of 50 nm or less, more preferably 20 nm or less, may be advantageous.
  • the thickness of the base layer may be 5 ⁇ m to 250 ⁇ m, and more preferably 20 ⁇ m to 125 ⁇ m, to favor mechanical strength and flexibility .
  • the resin layer 120 may include polyvinyl resin, silicone resin, acrylic resin, epoxy resin, methacryl resin, phenol resin, polyester resin, styrene resin, alkyd resin, amino resin, It is preferable that it is formed with 1 or more types of curable resins chosen from the group containing with a polyurethane-type resin.
  • curable resins include unsaturated polyester, methyl methacrylate, ethyl methacrylate, isobutyl methacrylate, normal butyl methacrylate, normal butyl methyl methacrylate, acrylic acid, methacrylic acid, and hydride.
  • WGPs of Examples 1 to 4 including lattice-shaped convex portions and metal lattice meeting the conditions described in Table 1 below were prepared on both sides of the base layer.
  • the substrate was used a triacetyl cellulose (TAC) film having a thickness of 80 ⁇ m, after applying the acrylic photosensitive composition on both sides of the TAC, the nickel electrostatic stamp is in close contact with the ultraviolet (high pressure mercury lamp, 20 W / cm 2 )
  • the resin layer which provided the lattice-shaped convex part on both surfaces was manufactured.
  • the metal lattice was formed by partially depositing aluminum on the resin layer thus formed through sputtering.
  • Comparative Example 1 which satisfies the conditions described in Table 1 below, but includes a conventional lattice-shaped convex portion in which protrusions and depressions do not exist, unlike Examples 1 to 4, respectively.
  • WGPs of 2 were prepared. At this time, the resin layer, metal pattern layer, base material layer, manufacturing process, etc. used for the WGP of Comparative Examples 1 and 2 were controlled to be the same as those used in Production Examples 1 to 4 above.
  • Example 1 30 100 100 15 both sides 40 120 70 1.27
  • Example 2 30 100 100 15 both sides 50 120 90 1.38
  • Example 3 30 100 100 15 both sides 60 120 85 1.13
  • Example 1 81.5 0.008 99.980
  • Example 2 80.9 0.001 99.998
  • Example 3 80.2 0.004 99.990
  • Example 4 81.3 0.075 99.816 Comparative Example 1 80.7 0.069 99.826 Comparative Example 2 80.4 0.021 99.948
  • the polarization efficiency of Examples 1 to 3 in which the convex gratings having the distance between the largest protrusions and the maximum depressions are formed on both sides of the base layer is the common convex gratings of the base layer cross section and both sides. It was remarkably improved compared to Comparative Examples 1 to 2 formed in the above measured at 99.99%. However, in the case of Example 4 having a F.F of less than 1.05, it was confirmed that the P canal tube transmittance was improved, but the improvement in polarization efficiency due to lamination was found to be less than expected compared to Examples 1 to 3.
  • the polarizers (WGP) of Examples 1 to 4 and Comparative Examples 1 and 2 prepared above were attached to each other to analyze luminance.
  • a commercially available PVA-type absorbing polarizer was used as a control.
  • the highest luminance (Maximum Luminance, White) and the lowest luminance (Minimum Luminance, Black) were analyzed by rotating the WGP attached to the lower surface of the liquid crystal display panel 360 degrees.
  • Luminance measurement was performed by measuring the luminance at any of five points using BM-7A (Japan TOPCON Co., Ltd.), and evaluating the average value.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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Abstract

La présente invention concerne une plaque de polarisation à grille de fils à double-face, et concerne également un élément optique la comprenant, la plaque de polarisation à grille de fils à double-face comprenant : une couche de base (110) ; une couche de résine (120) qui est formée sur les deux surfaces de la couche de base et comprend des motifs irréguliers formés par des parties de saillie de type grille (200) ; et une couche de motif de grille métallique (130) formée sur les parties de saillie de type grille de la couche de résine, les parties en saillie de type grille (200) étant formées selon une forme irrégulière dans laquelle au moins une surface latérale parmi la surface latérale gauche et la surface latérale droite des parties de saillie de type grille comprend au moins une section qui est incurvée ou inclinée de manière à former un angle aigu avec le sol.
PCT/KR2016/007701 2015-08-07 2016-08-04 Plaque de polarisation à grille de fils à double-face, et élément optique la comprenant WO2017026677A1 (fr)

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Citations (5)

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KR20090081794A (ko) * 2008-01-25 2009-07-29 주식회사 엘지화학 와이어 그리드 편광판
KR20090108592A (ko) * 2007-01-12 2009-10-15 도레이 카부시키가이샤 편광판 및 이것을 사용한 액정표시장치
KR20090123865A (ko) * 2007-02-27 2009-12-02 니폰 제온 가부시키가이샤 그리드 편광자
KR20130079323A (ko) * 2010-04-19 2013-07-10 아사히 가라스 가부시키가이샤 와이어 그리드형 편광자의 제조 방법 및 액정 표시 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US293142A (en) * 1884-02-05 Daniel a
KR20090108592A (ko) * 2007-01-12 2009-10-15 도레이 카부시키가이샤 편광판 및 이것을 사용한 액정표시장치
KR20090123865A (ko) * 2007-02-27 2009-12-02 니폰 제온 가부시키가이샤 그리드 편광자
KR20090081794A (ko) * 2008-01-25 2009-07-29 주식회사 엘지화학 와이어 그리드 편광판
KR20130079323A (ko) * 2010-04-19 2013-07-10 아사히 가라스 가부시키가이샤 와이어 그리드형 편광자의 제조 방법 및 액정 표시 장치

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