WO2013035991A2 - Film optique à microstructure - Google Patents

Film optique à microstructure Download PDF

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Publication number
WO2013035991A2
WO2013035991A2 PCT/KR2012/006591 KR2012006591W WO2013035991A2 WO 2013035991 A2 WO2013035991 A2 WO 2013035991A2 KR 2012006591 W KR2012006591 W KR 2012006591W WO 2013035991 A2 WO2013035991 A2 WO 2013035991A2
Authority
WO
WIPO (PCT)
Prior art keywords
optical film
mark
microstructured optical
microstructure
present
Prior art date
Application number
PCT/KR2012/006591
Other languages
English (en)
Korean (ko)
Other versions
WO2013035991A3 (fr
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
Publication of WO2013035991A2 publication Critical patent/WO2013035991A2/fr
Publication of WO2013035991A3 publication Critical patent/WO2013035991A3/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
    • 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
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G06F3/0317—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • G06F3/0321—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet

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 from the flat surface in a specific direction 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 above technical problem, in the microstructured optical film for determining the position information by detecting the encoding pattern formed on the surface in the optical device, a plurality of microstructures and position information formed on the surface It is characterized by including the several mark which shows.
  • the mark is a blank area to be distinguished from the microstructure.
  • the mark is formed on top of the plurality of microstructures using infrared absorbing ink.
  • the mark is formed on top of the plurality of microstructures using an ink having the same refractive index as that of the microstructured optical film.
  • the microstructure is characterized in that any one of hemispherical, square pyramid, cylindrical, box, wedge type.
  • the mark has any one of at least two different mark values, and the mark value is determined according to a position formed around an intersection of a virtual grid line.
  • the lower end further comprises an infrared reflecting layer that transmits visible light and reflects only infrared light.
  • 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 perspective view of a microstructured optical film according to one embodiment of the present invention.
  • FIG. 4 is a plan view of a microstructured optical film according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a microstructured optical film according to one embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of a microstructured optical film having a blank area in accordance with one embodiment of the present invention.
  • FIG. 7 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
  • the 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 6 as follows.
  • FIG 3 is a plan view of the microstructured optical film 100 according to an embodiment of the present invention, as shown in the microstructured optical film for detecting the position information by detecting the encoding pattern formed on the surface of the optical device In 100, a plurality of microstructures 110 formed on the surface and a plurality of marks 120 representing position information are included.
  • 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 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 is to allow the optical device to detect the position information. As shown in FIGS. 3 and 4, the mark 120 is formed at regular intervals around the intersection point of the virtual grid line. 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.
  • the mark 120 may be formed using an infrared absorbing ink on the microstructure 110 as shown in FIG. 5, or may have a blank area as shown in FIG. 6 so as to be distinguished from the microstructure 110. Can be formed.
  • the blank region may be formed to be flat by using a laser on a portion of the existing microstructured optical film to form a plurality of marks 120.
  • the mark 120 may be formed on the microstructure 110 using ink having the same refractive index as that of the microstructure 110.
  • the ink does not absorb infrared rays but has the same refractive index as the microstructure 110 so that when the ink is detected by the optical device, the mark may be optically recognized as a flat structure such as a blank area.
  • the ink may use a transparent ink on the visible light.
  • Conventional optical film 100 has a disadvantage in that the microstructure 110 is repeatedly formed to reduce the brightness of the display at the bottom of the optical film 100 due to excessive high density, blurring the display, but many marks 120 In the case of forming a blank area, the effect of blurring the display is reduced.
  • 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
  • oriented polypropylene polycarbonate
  • triacetate triacetate
  • the optical film 100 may be used in various thicknesses depending on 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. 7, to reflect infrared light emitted from the optical device to the optical film 100, thereby providing 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. 7, to reflect infrared light emitted from the optical device to the optical film 100, thereby providing 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)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Laminated Bodies (AREA)
  • Position Input By Displaying (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Optical Transform (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

La présente invention concerne un film optique à microstructure établi en réponse à divers problèmes, plus particulièrement, l'invention concerne un film optique à microstructure permettant à des informations de position sur une surface d'être reconnues par un stylo électronique par formation d'un motif de codage destiné au décryptage optique sur la surface d'un film optique à microstructure. Pour ce faire, l'invention concerne un film optique à microstructure permettant à un motif de codage formé sur une surface d'être détecté à partir d'un dispositif optique, permettant ainsi aux informations de position d'être déterminées; le film se caractérise en ce qu'il comoprend une pluralité de repères indiquant des informations de position et une pluralité de microstructures formées sur la surface.
PCT/KR2012/006591 2011-09-05 2012-08-20 Film optique à microstructure WO2013035991A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110089544A KR101263387B1 (ko) 2011-09-05 2011-09-05 미세구조화 광학 필름
KR10-2011-0089544 2011-09-05

Publications (2)

Publication Number Publication Date
WO2013035991A2 true WO2013035991A2 (fr) 2013-03-14
WO2013035991A3 WO2013035991A3 (fr) 2013-05-02

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PCT/KR2012/006591 WO2013035991A2 (fr) 2011-09-05 2012-08-20 Film optique à microstructure

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KR (1) KR101263387B1 (fr)
WO (1) WO2013035991A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016010534A1 (fr) * 2014-07-16 2016-01-21 Hewlett-Packard Development Company, L.P. Dispositif d'affichage émissif de diffusion

Citations (4)

* 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
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 (4)

* 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
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016010534A1 (fr) * 2014-07-16 2016-01-21 Hewlett-Packard Development Company, L.P. Dispositif d'affichage émissif de diffusion
TWI559195B (zh) * 2014-07-16 2016-11-21 惠普發展公司有限責任合夥企業 漫射式發光顯示技術
US10429950B2 (en) 2014-07-16 2019-10-01 Hewlett-Packard Development Company, L.P. Diffusive emissive display

Also Published As

Publication number Publication date
WO2013035991A3 (fr) 2013-05-02
KR101263387B1 (ko) 2013-05-21
KR20130026120A (ko) 2013-03-13

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