WO2014115913A1 - Film optique microstructuré - Google Patents

Film optique microstructuré Download PDF

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Publication number
WO2014115913A1
WO2014115913A1 PCT/KR2013/000613 KR2013000613W WO2014115913A1 WO 2014115913 A1 WO2014115913 A1 WO 2014115913A1 KR 2013000613 W KR2013000613 W KR 2013000613W WO 2014115913 A1 WO2014115913 A1 WO 2014115913A1
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WO
WIPO (PCT)
Prior art keywords
optical film
microstructured optical
marks
present
mark
Prior art date
Application number
PCT/KR2013/000613
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English (en)
Korean (ko)
Inventor
강용훈
Original Assignee
(주)펜제너레이션스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)펜제너레이션스 filed Critical (주)펜제너레이션스
Priority to PCT/KR2013/000613 priority Critical patent/WO2014115913A1/fr
Publication of WO2014115913A1 publication Critical patent/WO2014115913A1/fr

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Classifications

    • 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
    • G02B5/0231—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 microprismatic or micropyramidal shape
    • 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
    • G02B5/0263—Diffusing elements; Afocal elements characterised by the diffusing properties with positional variation of the diffusing properties, e.g. gradient or patterned diffuser

Definitions

  • the present invention relates to a microstructured optical film, and more particularly, to a microstructured optical film in which an optically readable pattern is formed on a surface of an electronic pen.
  • Touch-type displays include liquid crystal displays (LCDs), electroluminescent displays, plasma displays, and the like, and can be used in large or small image display devices.
  • LCDs liquid crystal displays
  • Many applications use input / output devices such as touch panels or graphic panels with electronic displays.
  • touch panels are widely used in PDAs (personal digital assistants) or smart phones.
  • PDAs personal digital assistants
  • a smartphone a user performs an input / output operation by directly touching an image display surface with a finger or a pen.
  • transparency of the entire touch input / output surface is reduced due to light reflection by fingerprint marks or the like on the touch input / output surface.
  • the sharpness of the touch input / output surface is reduced.
  • the periphery of the touch input / output surface is reflected in the touch input / output surface, so that the sharpness is reduced.
  • a pattern of bumps or dips has been provided on the touch input / output surface to prevent a reduction in sharpness of the touch input / output surface.
  • microstructured optical films have been filed and registered in addition to Korean Patent Application No. 10-2005-7023278 (name of the invention: microstructured optical film and its manufacturing method) (hereinafter 'prior invention').
  • the surface reflection distribution region 20 is a transparent sheet by arranging transparent microstructures (preferably prismatic microstructures) whose shape, height, and distribution density are controlled.
  • transparent microstructures preferably prismatic microstructures
  • a reflective layer formed on the shaped substrate 10 so that light incident on the surface of the optical film can be reflected in various directions by the surface of the microstructure and prevents strong mirror reflection in a specific direction from a flat surface could.
  • the present invention has been made in view of the above problems, and the present invention provides a microstructured optical film which forms an encoding pattern for optical reading on the surface of the microstructured optical film so that the positional information of the surface can be recognized by the electronic pen. do.
  • the present invention for achieving the technical problem, to provide a microstructured optical film for determining the position information by detecting the encoding pattern formed on the surface in the optical device, which is a plurality of marks indicating the position information on the surface And a region other than the mark, each of the plurality of marks is composed of a plurality of microstructures and reflects light detected by the optical device.
  • the microstructure is characterized in that any one of a hemispherical, square pyramid, cylindrical, box, wedge-shaped.
  • the mark has any one of at least two different mark values, characterized in that the mark value is determined according to the position formed around the intersection of the virtual grid lines.
  • the microstructure formed in the optical film to prevent the reduction of the sharpness of the touch input / output surface, by using a plurality of marks to detect the position information of the surface in the optical field such as an electronic pen do.
  • FIG. 1 is a cross-sectional view of a conventional microstructured optical film of the present invention.
  • FIG. 2 is a plan view of a conventional microstructured optical film of the present invention.
  • FIG 3 is a plan view of a microstructured optical film according to an embodiment of the present invention.
  • FIG. 4 is a perspective view of a microstructured optical film according to one embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a microstructured optical film including an adhesive layer according to an embodiment of the present invention.
  • optical film 110 fine structure
  • a microstructured optical film (hereinafter, referred to as an 'optical film') 100 and a method thereof according to the present invention will be described with reference to FIGS. 3 to 5 as follows.
  • FIG 3 is a plan view of the microstructured optical film 100 according to an embodiment of the present invention.
  • the microstructured optical film 100 according to an embodiment of the present invention as shown, as the microstructured optical film 100 to detect the encoding pattern formed on the surface in the optical device to determine the position information And a plurality of marks 120 representing positional information on the surface, wherein the plurality of marks comprises a plurality of microstructures 110.
  • microstructured optical film 100 may be formed in a form separated from the display, or may be formed on the display surface.
  • the optical device generally has a pen shape, and includes an illumination unit and a detection unit, and an illumination unit of the optical device radiates light such as infrared rays or radiation to the optical film 100, and the detection unit transmits light emitted from the illumination unit to the optical film ( The light reflected or scattered at 100 may be detected to recognize a pattern of a plurality of marks 120 formed on the surface.
  • the optical film 100 of the present invention reflects or scatters the light irradiated with the plurality of marks 120, and the light is not reflected in the areas other than the marks 120, or the reflected light is more than the marks 120. It is lower than a certain standard so that the optical device determines that there is no reflected light.
  • the plurality of marks 120 of the optical film 100 of the present invention are recognized as white with light reflected from the optical device, and the area outside the marks 120 is recognized as black without relatively reflected light. It can be said.
  • the microstructure 110 has a size that is difficult to see with the naked eye and the light incident on the surface of the optical film 100 is reflected in various directions by the surface of the microstructure 110.
  • the microstructure 110 may have a hemispherical shape, a square pyramid shape, a cylinder shape, a box shape, a wedge shape, or any shape. Therefore, even if a light source such as illumination or the sun is present by the plurality of microstructures 110, or a stain such as a fingerprint of a user is attached to the surface of the optical film 100, the stain is hardly noticeable, and thus a decrease in display performance is suppressed. Sharpness is improved.
  • the mark 120 includes a microstructure 110 so that the position information can be detected by the optical device. As shown in FIGS. 3 and 4, the mark 120 is formed at regular intervals around an intersection point of a virtual grid line. do. Each mark 120 has a mark value, and the mark value is at least two different numbers. In addition, the shape of the mark 120 may have various shapes such as a circle, an ellipse, a polygon, a straight line, and one type of the mark 120 may be used for one optical film 100.
  • the mark value is determined according to the position where the mark 120 is formed around the intersection of the virtual grid lines.
  • the optical device detects the plurality of marks 120 to determine the location information.
  • the virtual grid lines are invisible reference lines on the optical film 100 and are formed horizontally and vertically at regular intervals.
  • the distance between the lattice lines is preferably about 250 ⁇ m to 300 ⁇ m.
  • Marks 120 are formed at regular intervals around the intersections of the virtual grid lines, preferably 1/4 to 1/8 of the distance between the grid lines, and may be formed in four directions on the grid lines around the intersections of the grid lines. have.
  • One mark 120 may be associated with each intersection of the grid lines, but the distance between the mark 120 and the intersection of the grid lines may be classified into two types, 1/4 and 1/8, and two or more points may be formed at the intersections of the grid lines. May be associated with the mark 120.
  • location information is determined using a location where the mark 120 is formed based on a virtual grid line using the plurality of marks 120. For example, when the optical apparatus detects an encoding pattern having a size of 6 ⁇ 6, 36 marks 120 of 6 pieces in width and width have respective mark values, and the absolute position information is determined by the optical apparatus using the respective mark values. can do.
  • Existing optical film 100 has a disadvantage that the microstructure 110 is repeatedly formed to reduce the brightness of the display of the bottom of the optical film 100 due to excessive high density, blurring the display, but only the mark 120 is fine In the case of forming the structure 110, there is an effect that can reduce the effect of blurring the display.
  • Optical film 100 includes, but is not limited to, plastic film made of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), oriented polypropylene, polycarbonate, triacetate, and the like as a transparent material. Do not.
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • the optical film 100 may be used in various thicknesses according to the layer structure of the optical film 100, a specific use, and the like.
  • the optical film 100 further includes an infrared reflecting layer 130 that transmits visible light at the bottom and reflects only infrared light, as shown in FIG. 5, to reflect infrared light emitted from the optical device to the optical film 100 to provide optical Efficiently reach the image sensor of the device.
  • an infrared reflecting layer 130 that transmits visible light at the bottom and reflects only infrared light, as shown in FIG. 5, to reflect infrared light emitted from the optical device to the optical film 100 to provide optical Efficiently reach the image sensor of the device.
  • the optical film 100 may be inserted into the surface layer or the inside of the display device.
  • the optical film 100 further includes an adhesive layer 200 at the bottom of the optical film 100 to attach to the surface of a monitor, a screen, or the like. It may be.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

La présente invention concerne un film optique microstructuré. La présente invention a été conçue en tenant compte du problème susmentionné, et décrit un film optique microstructuré caractérisé sur la surface duquel est réalisé un motif de codage pour lecture optique, permettant ainsi à un crayon électronique de reconnaître les informations de position sur la surface. À cette fin, la présente invention concerne un film optique microstructuré destiné à permettre la détermination des informations de position en détectant un motif de codage réalisé sur la surface d'un dispositif optique, le film optique microstructuré comportant une pluralité de repères servant à indiquer les informations de position sur la surface, et les repères comportant une pluralité de microstructures.
PCT/KR2013/000613 2013-01-25 2013-01-25 Film optique microstructuré WO2014115913A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2013/000613 WO2014115913A1 (fr) 2013-01-25 2013-01-25 Film optique microstructuré

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2013/000613 WO2014115913A1 (fr) 2013-01-25 2013-01-25 Film optique microstructuré

Publications (1)

Publication Number Publication Date
WO2014115913A1 true WO2014115913A1 (fr) 2014-07-31

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ID=51227697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/000613 WO2014115913A1 (fr) 2013-01-25 2013-01-25 Film optique microstructuré

Country Status (1)

Country Link
WO (1) WO2014115913A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003256137A (ja) * 2002-02-28 2003-09-10 Kokuyo Co Ltd ディスプレイ、透明シート
KR20040047819A (ko) * 2002-09-26 2004-06-05 요시다 켄지 도트 패턴을 이용한 정보재생, 입출력방법, 정보재생장치,휴대정보 입출력 장치 및 전자완구
JP2006011763A (ja) * 2004-06-25 2006-01-12 Citizen Watch Co Ltd 入力装置
KR20060014436A (ko) * 2003-06-06 2006-02-15 쓰리엠 이노베이티브 프로퍼티즈 컴파니 미세구조화 광학 필름 및 이의 제조 방법
KR20100052526A (ko) * 2007-08-09 2010-05-19 켄지 요시다 정보 입력 보조 시트, 정보 입력 보조 시트를 이용한 정보 처리 시스템, 정보 입력 보조 시트를 이용한 인쇄 관련 출력 시스템 및 캘리브레이션 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003256137A (ja) * 2002-02-28 2003-09-10 Kokuyo Co Ltd ディスプレイ、透明シート
KR20040047819A (ko) * 2002-09-26 2004-06-05 요시다 켄지 도트 패턴을 이용한 정보재생, 입출력방법, 정보재생장치,휴대정보 입출력 장치 및 전자완구
KR20060014436A (ko) * 2003-06-06 2006-02-15 쓰리엠 이노베이티브 프로퍼티즈 컴파니 미세구조화 광학 필름 및 이의 제조 방법
JP2006011763A (ja) * 2004-06-25 2006-01-12 Citizen Watch Co Ltd 入力装置
KR20100052526A (ko) * 2007-08-09 2010-05-19 켄지 요시다 정보 입력 보조 시트, 정보 입력 보조 시트를 이용한 정보 처리 시스템, 정보 입력 보조 시트를 이용한 인쇄 관련 출력 시스템 및 캘리브레이션 방법

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