WO2011062461A2 - Feuille optique unifiée et dispositif optique la comprenant - Google Patents

Feuille optique unifiée et dispositif optique la comprenant Download PDF

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Publication number
WO2011062461A2
WO2011062461A2 PCT/KR2010/008300 KR2010008300W WO2011062461A2 WO 2011062461 A2 WO2011062461 A2 WO 2011062461A2 KR 2010008300 W KR2010008300 W KR 2010008300W WO 2011062461 A2 WO2011062461 A2 WO 2011062461A2
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Prior art keywords
optical
shape
prism
sheet
optical sheet
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Application number
PCT/KR2010/008300
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English (en)
Korean (ko)
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WO2011062461A3 (fr
Inventor
박정호
김영일
남궁명
Original Assignee
주식회사 엘에에스
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Publication of WO2011062461A2 publication Critical patent/WO2011062461A2/fr
Publication of WO2011062461A3 publication Critical patent/WO2011062461A3/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • G02B3/0068—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0257—Diffusing elements; Afocal elements characterised by the diffusing properties creating an anisotropic diffusion characteristic, i.e. distributing output differently in two perpendicular axes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • 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
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Definitions

  • the present invention relates to an integrated optical sheet and an optical device including the optical sheet. More particularly, the present invention relates to an integrated optical sheet and an optical device including an optical sheet, in order to integrate the diffusion film and the prism film to reduce the thickness, and to prevent wet-out and moiré phenomena.
  • Liquid crystal display devices are widely used as information displays for notebooks, personal computers, TVs, and the like, and their characteristics are improved year by year as demand increases.
  • the liquid crystal panel of the LCD which is a non-light emitting element requires a backlight unit due to its structure.
  • the backlight unit is composed of various optical systems.
  • the backlight unit uses an optical sheet, which is an assembly of optical films in a periodic arrangement, for improving luminance.
  • FIG. 22 is a diagram illustrating a structure of a conventional liquid crystal display device. Referring to FIG. 22, problems of the conventional optical sheet are described as follows. As shown in FIG. 22, the liquid crystal display device 101 includes a backlight unit 20 and a liquid crystal panel 30.
  • the backlight unit 20 includes optical sheets 10 and 24 including a light source 21, a light guide plate 22, a diffuser film 24, and a prism film 10. .
  • the prism film 10 condenses the light again to increase the light brightness.
  • the prism film 10 has mountain-shaped fine valleys, and it is common to use two prism films laminated. When laminating
  • An object of the present invention to solve the above problems is to provide an integrated optical sheet thinned by integrating a portion of the plurality of films.
  • an object of the present invention is to prevent the occurrence of infiltration phenomenon that occurred in the separate configuration process.
  • a light collecting part including a plurality of prism elements extending into the light collecting part; And an anisotropic diffuser having a plurality of optical elements extending in a second direction different from the first direction on opposite surfaces of the prism elements on which the light collecting portion is formed, wherein the surfaces on which the prism elements are formed and the optical elements A plurality of optical lens patterns are formed on at least one of the formed surfaces.
  • the first direction and the second direction are substantially perpendicular.
  • the anisotropic diffusion portion is characterized in that the short axis direction of the emitted light distribution diagram substantially coincides with the second direction, and the long-to-short ratio of the emitted light distribution diagram is 2: 1 or more.
  • the optical element of the anisotropic diffusion portion is characterized in that the lenticular.
  • the lenticular is characterized in that the R value of 0.65 or less relative to the pitch.
  • the lenticular is characterized by a circular hemispherical shape or a circular semi-cylindrical shape.
  • the integrated optical sheet of the present invention it characterized in that it further comprises a translucent base between the light collecting portion and the anisotropic diffusion portion.
  • the optical lens patterns are distributed in an embossed form with a predetermined interval therebetween.
  • the optical lens pattern has a shape of at least one of a circular or elliptical shape or polygonal shape in planar projection, and is a convex shape protruding upward in a partial arc shape in cross-sectional projection, It is characterized by having a concave shape recessed downward into a partial arc shape or a combination of a convex shape and a concave shape.
  • the optical lens pattern is characterized in that formed at equal intervals or irregular intervals.
  • the optical lens pattern may have a polygonal shape or a partial arc shape in cross-sectional projection, or a complex shape of the polygonal shape and the partial arc shape.
  • the optical device of the present invention the light guide plate having an incident surface on the side; A light collecting part disposed on the light guide plate and including a plurality of prism elements extending in a first direction and having a directivity; And an anisotropic diffusion portion in which a plurality of optical elements extending in a second direction different from the first direction are formed on a surface opposite to a surface on which the prism element of the light collecting portion is formed, wherein the surface on which the prism element is formed and the optical element are An optical sheet having a plurality of optical lens patterns formed on at least one surface thereof; And a prism sheet disposed on the optical sheet.
  • the first direction and the second direction are substantially perpendicular.
  • the prism element extending direction of the prism sheet is substantially perpendicular to the first direction.
  • the prism element extending direction of the prism sheet is substantially the second direction.
  • the anisotropic diffusion portion has a short axis direction of the emitted light distribution diagram substantially coinciding with the second direction, and a long-to-short ratio of the emitted light distribution diagram is 2: 1 or more.
  • the optical lens patterns are distributed in an embossed form at predetermined intervals or linearly arranged at predetermined intervals.
  • the optical lens pattern has a shape of at least one of a circular, elliptical, or polygonal shape in planar projection, and is a convex shape protruding upward in a partial arc shape in cross-sectional projection, or It is characterized by having a concave shape recessed downward in an arc shape, or a combination of a convex shape and a concave shape.
  • the optical lens pattern has a convex shape in which the optical cross section protrudes upward in the projection of the cross section, or a concave shape in the downward recess, or a combination of the convex shape and the concave shape. do.
  • the optical lens pattern is formed at equal or irregular intervals.
  • the optical lens pattern may have a polygonal shape or a partial arc shape in cross-sectional projection, or a combination of the polygonal shape and the partial arc shape.
  • the integrated optical sheet of the present invention as described above has the advantage of realizing a high brightness and uniformity of light emitted through the optical sheet and at the same time thinning by integrating a portion of the optical film constituting.
  • the optical device employing the optical sheet can be implemented in a thin form, has the advantage of having a high product competitiveness by improving the shortening and yield of the assembly process.
  • FIG. 1 is a schematic exploded perspective view of a liquid crystal display device according to an embodiment of the optical device of the present invention
  • FIG. 2 is a detailed view of the optical sheet of FIG.
  • 3 is a view for explaining a scattering element formed between the downward prism element
  • FIG. 4 is a view for explaining a difference depending on the presence or absence of scattering elements shown in FIG.
  • FIG. 5 is a view for explaining a luminance change according to the height of the scattering element shown in FIG.
  • FIG. 6 is a view for explaining in detail the lenticular shown in FIG.
  • FIG. 7 is a view for explaining a luminance change according to the change of the R value of the lenticular of FIG.
  • FIG. 8 is a view showing the emitted light of FIG. 2 and the anisotropic diffuser shown in FIG.
  • FIG. 9 is a distribution diagram of FIG. 8.
  • FIG. 10 is a view for explaining a lenticular according to another embodiment of the present invention.
  • FIG. 11 is a sectional view taken along line AA ′ of FIG. 2
  • FIG. 12 is a sectional view taken along line BB ′ of FIG. 2.
  • FIG. 13 and 14 are views for explaining another embodiment of the convex optical lens pattern.
  • 15 is a diagram for explaining an embodiment of a concave optical lens pattern.
  • FIG. 16 is a cross-sectional view taken along line C-C 'of FIG. 15, and FIG. 17 is a cross-sectional view taken along line D-D' of FIG. 15.
  • 20 and 21 are cross-sectional views illustrating an optical sheet according to another embodiment of the present invention.
  • 22 and 23 are views for explaining an arrangement of optical lens patterns according to an embodiment of the present invention.
  • FIG. 24 is a schematic exploded perspective view for explaining a conventional liquid crystal display device.
  • FIG. 1 a liquid crystal display according to an exemplary embodiment of the optical device according to the present invention will be described.
  • the light guide plate 200 is responsible for guiding and exiting the light incident from the light source 100. Therefore, the lower surface of the light guide plate 200 may be processed into a predetermined microstructure for the desired light reflection.
  • a reflector may be further provided below the light guide plate 200.
  • the light source 100 is described as an example of being positioned on the side of the light guide plate 200, but the present invention is not limited thereto and may be realized in a direct manner.
  • An integrated optical sheet 300 may be installed in the light exit direction of the light guide plate 200, and a prism sheet 400 may be installed in the light exit direction of the integrated optical sheet 300.
  • the liquid crystal display panel 500 may be formed in the light output direction of the prism sheet 400 to configure one liquid crystal display device.
  • the integrated optical sheet 300 includes a light collecting part 330 formed on a surface facing the light guide plate 200 and having a plurality of downward prism elements 331 extending in one direction. It is formed on the emission direction surface and includes an anisotropic diffusion portion 310 for diffusing light.
  • a plurality of scattering elements may be formed between the plurality of prism elements 331 as shown in FIG. 3 to prevent luminance unevenness. Referring to FIG. 4, when there is no scattering element on the left side, the luminance unevenness is revealed in appearance. When the light is scattered with the scattering element, luminance uniformity can be achieved as shown on the right side. Therefore, the scattering element 332 need not be provided where the appearance is not important and the brightness needs to be realized.
  • the scattering element 332 may be provided where the luminance unevenness does not appear.
  • the height L2 of the scattering element 332 formed between the downward prism elements 331 of the light collecting part 330 should be smaller than the height L1 of the downward prism element 331. It is preferable to form less than / 2. If the height of the scattering element 332 is greater than 1/2, it is most preferable that the scattering element 332 is formed to be 1/2 or less because it causes mutual interference with the downward prism element 331 and thus the functionality of scattering, which is the original purpose, is inferior. Do. According to the experimental results, as shown in FIG.
  • the height of the scattering element 332 is 1/2 or less, the luminance is slowly decreased, but when it is more than 1/2, the luminance is rapidly decreased. From this, it can be seen that it is most preferable that the height L2 of the scattering element 332 is less than or equal to 1/2 of the height of the downward prism element 331 in order to prevent the reduction in overall luminance.
  • each of the light collecting parts 330 and the anisotropic diffusion part 310 further includes a plurality of optical lens patterns 320a and 320b for collecting and scattering incident light at a predetermined angle.
  • an integrated optical sheet 300 having optical lens patterns 320a and 320b formed on both surfaces thereof is illustrated, but the optical lens pattern may be formed on only one side thereof. That is, it may be formed only on the light collecting part 330 or only on the anisotropic diffusion part 310 or may be formed on both surfaces as shown in FIG. 2.
  • the optical lens patterns 320a and 320b have a circular shape in planar projection and are distributed in an embossed form at a predetermined interval from each other. It has an optical section in the form of a convex lens that protrudes upward in an arc shape that protrudes upward.
  • the optical lens patterns 320a and 320b condense the light transmitted from the light source 100 from the pattern surface formed by the arc surface and scatter it in all directions as indicated by arrows in the drawing. It is possible to control the size, structure and spacing of the optical lens patterns (320a, 320b) when manufacturing the (300).
  • the light collecting part 330 having the downward prism element 331 is formed on one surface of the optical sheet 300, and the anisotropic diffusion part 310 for diffusing the concentrated light through the light collecting part 330 is formed on the other surface of the optical sheet 300.
  • the optical lens patterns (320a, 320b) in each of the light collecting portion 330 and the anisotropic diffusion portion 310 to integrate the conventional diffusion film and the prism film, it is possible to implement a thin optical sheet.
  • a light transmitting base portion may be further provided between the light collecting portion 330 and the anisotropic diffusion portion 310, which is provided with a light collecting portion on one side and an anisotropic diffusion portion on the other side thereof. This is because it is possible to provide.
  • a plurality of lenticulars are formed in the other direction as an optical element for diffusion on the upper surface of the anisotropic diffuser 310, and may be formed in a semi-circular column shape 312 as shown in FIGS. 2 and 3.
  • the lenticular is formed in a semicircular column shape 312 as an example.
  • FIG. 6 an intaglio lenticular is illustrated and described.
  • the present invention is understood to include both an intaglio or an intaglio lenticular.
  • the plurality of downward prism elements 331 of the light collecting part 330 and the lenticular 312 of the anisotropic diffusion part 310 are formed to be perpendicular to each other, for example, but are not limited thereto. That is, the direction of the downward prism element 331 and the lenticular 312 may be formed to have a cross angle that is not perpendicular to each other.
  • the lenticular 312 of the anisotropic diffuser 310 is provided in a circular hemispherical shape or a circular semi-cylindrical shape. As shown in FIG. 6, the amount of light diffusion can be adjusted by changing the R value of the lenticular. The experimental results measured by changing the R value are shown in FIG. 7.
  • the anisotropic diffusion portion is formed by the lenticular as an example, but is not limited thereto, and the anisotropic diffusion portion may be implemented by the formation of a leaf pattern, a scratch, etc., which may exhibit anisotropy.
  • the leaf-shaped optical element has an elliptical shape having a long axis and a short axis, and an embossed shape having a height lowered toward both ends, that is, the edge of the short axis, about the center of the long axis. In the present example, but is made of an embossed example, it is also possible to form intaglio grooves.
  • the leaf-shaped optical element has a ratio of long and short axes of 1.5: 1 to 50: 1, each of which has a length of 1 to 5000um and 1 to 100um and a height of 0.2 to 200um. Do.
  • FIG. 8 shows the output light by separately separating only the anisotropic diffuser 310 of the integrated sheet 300 and projecting the light.
  • the luminance of the incident light is 100, the points where the luminance of 50% or more is distributed are connected.
  • the emission light distribution having a substantially elliptical shape is obtained.
  • the R value of the lenticular 312 of the anisotropic diffuser 310 is changed, the long-length ratio of the elliptical is measured, as shown in Table 1 below.
  • Such a test is performed through a general viewing angle measuring device, and the emitted light distribution obtained through the viewing angle measuring device has the shape of an ellipse having a long axis and a short axis.
  • the direction of the short axis is formed in the lenticular extending direction of the integrated sheet 300
  • the direction of the long axis is formed in the vertical direction of the lenticular extension direction of the integrated sheet 300.
  • the ratio between the long axis and the short axis of the anisotropic diffuser is 2: 1 or more
  • the brightness enhancement effect becomes prominent.
  • the R value of the lenticular corresponds to 32 ⁇ m, which corresponds to the ratio of R value to pitch to 0.65.
  • the ratio of the R value with respect to the pitch of the anisotropic diffused part in which the lenticular is formed is 0.65 or less, good front luminance can be obtained.
  • the ratio of the long axis and the short axis of the emitted light distribution is 2: 1 or more. Good front luminance can be obtained.
  • a scattering element 313 may be further formed between the lenticular 312 of the anisotropic diffusion 310 as shown in FIG. 10.
  • the scattering element 313 is to prevent the luminance non-uniformity from appearing in appearance as shown in FIG. 4.
  • the scattering element 313 as shown in FIG. 10 may be formed by a mold or roller having a sanding, blasting or scratching surface, and the technical concept thereof will be apparent to those skilled in the art, and thus a detailed description thereof will be omitted.
  • the prism element extending direction of the prism sheet is arranged perpendicular to the first direction which is the extending direction of the downward prism element, or is an anisotropic diffusion portion. It is preferable to arrange
  • Each of the optical lens patterns 320a and 320b is formed on the light exit surface of each anisotropic diffuser 310 and the light incident surface of the condenser 330, and each of the lenticular 312 and the downward prism element ( 331 is formed along the pattern surface of the optical lens patterns 320a and 320b. Accordingly, the lenticular 312 and the downward prism element 331 positioned in the upper region of each of the optical lens patterns 320a and 320b may have patterns of the optical lens patterns 320a and 320b as shown in FIGS. 11 and 12. Corresponding to the plane has a curved shape having a relatively high peak and a low peak.
  • the heights of the lenticular 312 and the downward prism element 331 are light scattered from the optical lens patterns 320a and 320b while minimizing wet-out by minimizing optical defects observed by the human eye. Can be refracted in a substantially vertical direction.
  • the optical sheet 300 as shown in Figs. 13 and 14, the optical lens patterns 320a, 320b are spaced apart from each other with an elliptical or polygonal upwardly projecting convex lens shape in planar projection. 15 to 19, it may be formed in a concave lens-shaped embossed shape having a circle, an ellipse, a polygonal shape and recessed down in cross section as shown in FIGS.
  • the lenticular 312 may have an optical cross section having a partial arc shape as shown in FIG. 20, but may have various widths, and as shown in FIG. 21, an optical cross section having a partial arc shape. And a triangular optical cross section may be formed in a convexly complex shape.
  • the optical lens patterns 320a and 320b may be formed at irregular intervals regardless of a circle shape, an ellipse shape, or a polygonal shape in planar projection.
  • the optical sheet 300 according to the present invention having such a structure is refracted by the light emitted from the light source 100 in the vertical direction to enter the panel 500, thereby increasing the luminance in the entire area of the panel 500. . Therefore, high brightness can be exhibited even at a wide viewing angle. Since each of the lenticular 312 and the downward prism element 331 is formed along the pattern surface of the optical lens patterns 320a and 320b to form a structure having a relatively high peak and a relatively low peak, the human eye The optical coupling with adjacent films observed can be minimized. As a result, the wet-out phenomenon is minimized and the moire fringe does not occur.
  • the optical sheets 300 may not be visually observed. Therefore, productivity of the optical sheet 300 is improved by the defect rate reduction and the workability improvement.
  • productivity of the optical sheet 300 is improved by the defect rate reduction and the workability improvement.
  • the present invention provides an optical film capable of exhibiting high brightness at a wide viewing angle, removing moiré by preventing infiltration, and improving productivity.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)

Abstract

La présente invention concerne une feuille optique unifiée et un dispositif optique comprenant la feuille optique, et plus particulièrement une feuille optique unifiée et un dispositif optique conçu avec la feuille optique, qui peut mettre en œuvre une couche mince par l'unification d'un film diffuseur et d'un film prismatique et former des configurations de lentilles optiques dans le but de prévenir un phénomène d'imprégnation. La feuille optique unifiée de la présente invention concerne comprend : une unité de condensation qui comprend une pluralité de facteurs prismatiques s'étendant dans une première direction ; et une unité de diffusion anisotrope qui est formée avec une pluralité d'éléments optiques s'étendant dans une seconde direction qui est différente de la première direction, sur une surface opposée d'une surface sur laquelle les facteurs prismatiques de l'unité de condensation sont formés, une pluralité de configurations de lentilles optiques étant développée sur la surface sur laquelle les facteurs prismatiques sont formés et/ou la surface sur laquelle les éléments optiques sont formés.
PCT/KR2010/008300 2009-11-19 2010-11-23 Feuille optique unifiée et dispositif optique la comprenant WO2011062461A2 (fr)

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KR1020090111874A KR101082043B1 (ko) 2009-11-19 2009-11-19 통합형 광학 시트 및 이를 포함하는 광학장치
KR10-2009-0111874 2009-11-19

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WO2011062461A3 WO2011062461A3 (fr) 2011-11-10

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CN109212657A (zh) * 2017-07-07 2019-01-15 三星显示有限公司 光学构件、包括其的显示装置和制造该光学构件的方法
CN111025440A (zh) * 2019-12-31 2020-04-17 凯鑫森(上海)功能性薄膜产业有限公司 贴合膜用棱镜结构及其加工方法和应用
CN114200560A (zh) * 2021-12-20 2022-03-18 宁波舜宇奥来技术有限公司 能够实现光束分解的光扩散器和光扩散器的制作方法

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KR20130039127A (ko) * 2011-10-11 2013-04-19 주식회사 엘엠에스 광학시트 구조물

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