WO2014115913A1 - Microstructured optical film - Google Patents

Microstructured optical film 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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Prior art keywords
optical film
microstructured optical
marks
present
mark
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PCT/KR2013/000613
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French (fr)
Korean (ko)
Inventor
강용훈
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(주)펜제너레이션스
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Priority to PCT/KR2013/000613 priority Critical patent/WO2014115913A1/en
Publication of WO2014115913A1 publication Critical patent/WO2014115913A1/en

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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
    • G02B5/0231—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

The present invention relates to a microstructured optical film. The present invention has been devised in consideration of the above-mentioned problem, and provides a microstructured optical film, wherein an encoding pattern for optical reading is provided on the surface of the microstructured optical film, thereby allowing an electronic pen to recognize the location information on the surface. To this end, the present invention relates to a microstructured optical film for enabling determination of the location information by sensing an encoding pattern provided on the surface of an optical device, wherein the microstructured optical film comprises a plurality of marks for showing the location information on the surface, and the marks comprise a plurality of microstructures.

Description

미세구조화 광학 필름Microstructured Optical Film
본 발명은 미세구조화 광학 필름에 관한 것으로서, 더욱 상세하게는 전자펜에서 광학적으로 판독 가능한 패턴을 표면에 형성한 미세구조화 광학 필름에 관한 것이다.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.
터치 방식의 디스플레이는 액정 디스플레이(LCD), 전기발광 디스플레이, 플라즈마 디스플레이 등을 포함하며 대형 또는 소형 화상 디스플레이 장치에 사용될 수 있다. 다수의 분야에서 전자식 디스플레이를 갖는 터치 패널 또는 그래픽 패널과 같은 입/출력 장치를 이용한다. 예를 들어, 터치 패널은 PDA (개인 휴대 정보 단말기) 또는 스마트폰(Smart phone)에 널리 사용된다. 스마트폰을 사용하는 경우에, 사용자는 손가락 또는 펜으로 화상 디스플레이 표면을 직접 접촉하여 입출력 작업을 수행하게 된다. 그러나 사용자의 손가락 또는 펜으로 터치 입/출력 표면을 접촉하여 다양한 작업을 반복적으로 수행한 결과, 터치 입/출력 표면 전체의 투명도가 터치 입/출력 표면 상의 지문 자국 등에 의한 광 반사로 인해 감소되므로, 터치 입/출력 표면의 선명도가 감소된다. 더욱이, 상기 기재된 바와 같이 빛이 반사되는 경우에, 터치 입/출력 표면 중에 터치 입/출력 표면의 주변부가 비치므로, 선명도가 감소된다.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. Many applications use input / output devices such as touch panels or graphic panels with electronic displays. For example, touch panels are widely used in PDAs (personal digital assistants) or smart phones. In the case of using a smartphone, a user performs an input / output operation by directly touching an image display surface with a finger or a pen. However, as a result of repeatedly performing various operations by touching the touch input / output surface with a user's finger or 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. Moreover, when light is reflected as described above, the periphery of the touch input / output surface is reflected in the touch input / output surface, so that the sharpness is reduced.
통상적으로, 터치 입/출력 표면의 선명도 감소를 방지하기 위해서, 터치 입/출력 표면에 융기부(bump) 또는 함몰부(dip)의 패턴이 제공되었다. Typically, 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.
이러한 미세구조화 광학필름에 대해서는 대한민국특허출원 제10-2005-7023278호(발명의 명칭 : 미세구조화 광학필름 및 이의 제조방법)(이하 '선행발명')외에 다수 출원 및 등록되어있다.A number of such 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').
선행발명은 도 1 내지 도 2 에 나타난 바와 같이 광학 필름에서 표면 반사 분배 영역(20)은 형태, 높이, 및 분포 밀도가 조절되는 투명 미세구조(바람직하게는 프리즘형 미세구조)를 배치함으로써 투명 시트-형 기판(10)상에 형성된 반사층 상에 제공되어, 광학 필름의 표면상에 입사된 빛이 미세구조의 표면에 의해 다양한 방향으로 반사될 수 있으며 편평한 표면으로부터 특정 방향으로의 강한 거울 반사를 방지할 수 있었다. 그 결과로서, 실내의 조명이나 실외 태양광이 존재하는 경우에도 반사에 의한 선명도 저하가 발생되지 않으며, 심지어 지문과 같은 얼룩이 광학 필름의 표면에 부착되더라도 얼룩은 거의 눈에 띄지 않으므로 디스플레이 성능의 저하가 억제되고 선명도가 개선되었다.Prior art has shown that in the optical film, as shown in FIGS. 1 to 2, 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. Provided on 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. As a result, there is no deterioration in sharpness caused by reflection even when indoor lighting or outdoor sunlight is present, and even when a stain such as a fingerprint is attached to the surface of the optical film, the stain is hardly noticeable and thus a decrease in display performance. It is suppressed and the sharpness is improved.
그런데, 선행발명은 필름하단의 터치스크린에 의한 정전식 방식에 의하여 동작하였기 때문에 손 이외에 부도체로 정확한 위치를 선택하기 어려웠다. 또한, 필름에 필름의 위치 정보를 가지는 부호가 없어서 전자펜에서 광학적으로 위치 정보를 인식할 수 없었다.By the way, since the prior invention was operated by the capacitive method by the touch screen at the bottom of the film, it was difficult to select the correct position as the insulator other than the hand. In addition, since the film did not have a code having the position information of the film, the electronic pen could not recognize the position information optically.
본 발명은 상기와 같은 문제점을 감안하여 안출된 것으로, 본 발명은 미세구조화 광학 필름 표면에 광학 판독용 인코딩 패턴을 형성하여 전자펜에서 표면의 위치 정보를 인식할 수 있도록 하는 미세구조화 광학 필름을 제공한다.SUMMARY OF THE INVENTION 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.
이러한 기술적 과제를 달성하기 위한 본 발명은, 광학 장치에서 표면에 형성된 인코딩 패턴을 감지하여 위치 정보를 판단할 수 있도록 하기 위한 미세구조화 광학 필름을 제공하며, 이는 표면상에 위치 정보를 나타내는 다수의 마크와 마크 이외 영역을 포함하고, 다수의 마크 각각은 다수의 미세구조로 이루어지며 상기 광학 장치가 감지하는 광 반사를 한다.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.
또한 바람직하게, 상기 미세구조는 반구형, 사각뿔형, 원기둥형, 박스형, 쇄기형 중 어느 하나의 형태인 것을 특징으로 한다.Also preferably, the microstructure is characterized in that any one of a hemispherical, square pyramid, cylindrical, box, wedge-shaped.
그리고 바람직하게, 상기 마크는, 적어도 두 개의 상이한 마크값 중 어느 하나를 가지고, 가상의 격자선의 교점을 중심으로 형성되는 위치에 따라 상기 마크값이 결정되는 것을 특징으로 한다.And preferably, 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.
상기와 같은 본 발명에 따르면, 광학 필름에 형성된 미세구조를 이용하여 터치 입/출력 표면의 선명도 감소를 방지하고, 다수의 마크를 이용하여 전자펜 등 광학 장에서 표면의 위치 정보를 감지할 수 있도록 한다.According to the present invention as described above, by using 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.
도 1 은 본 발명의 종래 미세구조화 광학 필름의 단면도.1 is a cross-sectional view of a conventional microstructured optical film of the present invention.
도 2 는 본 발명의 종래 미세구조화 광학 필름의 평면도.2 is a plan view of a conventional microstructured optical film of the present invention.
도 3 은 본 발명의 일실시예에 따른 미세구조화 광학 필름의 평면도.3 is a plan view of a microstructured optical film according to an embodiment of the present invention.
도 4 는 본 발명의 일실시예에 따른 미세구조화 광학 필름의 사시도.4 is a perspective view of a microstructured optical film according to one embodiment of the present invention.
도 5 는 본 발명의 일실시예에 따른 접착층을 포함하는 미세구조화 광학 필름의 단면도.5 is a cross-sectional view of a microstructured optical film including an adhesive layer according to an embodiment of the present invention.
[부호의 설명][Description of the code]
10 : 기판 20 : 반사 분배 영역10 substrate 20 reflection distribution region
100 : 광학 필름 110 : 미세구조 100: optical film 110: fine structure
120 : 마크 130 : 반사층120: mark 130: reflective layer
본 발명의 구체적 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서 본 발명에 관련된 공지 기능 및 그 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는, 그 구체적인 설명을 생략하였음에 유의해야 할 것이다.Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. In the meantime, when it is determined that the detailed description of the known functions and the configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description is omitted.
이하, 첨부된 도면을 참조하여 본 발명을 상세하게 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.
본 발명에 따른 미세구조화 광학 필름(이하, '광학 필름')(100) 및 그 방법에 관하여 도 3 내지 도 5 를 참조하여 설명하면 다음과 같다. 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.
도 3 은 본 발명의 일실시예에 따른 미세구조화 광학 필름(100)의 평면도이다. 본 발명의 일실시예에 따른 미세구조화 광학 필름(100)은, 도시된 바와 같이, 광학 장치에서 표면에 형성된 인코딩 패턴을 감지하여 위치 정보를 판단할 수 있도록 하기 위한 미세구조화 광학 필름(100)으로서, 표면상에 위치 정보를 나타내는 다수의 마크(120)를 포함하며, 상기 다수의 마크는 다수의 미세구조(110)로 이루어진다.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.
그리고, 미세구조화 광학 필름(100)은 디스플레이와 분리된 형태로 형성될 수 도 있으나, 디스플레이 표면에 형성될 수 도 있다.In addition, the microstructured optical film 100 may be formed in a form separated from the display, or may be formed on the display surface.
참고로, 광학 장치는 일반적으로 펜의 형태를 가지고 조명부와 감지부를 포함하여 광학 장치의 조명부가 광학 필름(100)에 적외선 또는 방사선 등의 빛을 조사하고, 감지부는 조명부가 조사한 빛을 광학 필름(100)에서 반사 또는 산란시킨 빛을 감지하여 표면에 형성된 다수의 마크(120)의 패턴을 인식할 수 있다.For reference, 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.
따라서, 본 발명의 광학 필름(100)은 다수개의 마크(120)가 조사된 빛을 반사 또는 산란하며 마크(120)들 이외의 영역에서는 빛이 반사되지 않거나 마크(120)들보다 반사된 빛이 일정 기준 보다 낮아서 광학 장치가 반사된 빛이 없는 것으로 판단하게 된다. 예를 들어 본 발명의 광학 필름(100)의 다수의 마크(120)는 광학장치에서 반사된 빛이 있는 흰색으로 인식되고, 마크(120) 외의 영역은 상대적으로 반사된 빛이 없는 검은색으로 인식된다고 할 수 있다.Therefore, 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. For example, 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.
상기 미세구조(110)는 육안으로 확인하기 어려운 크기를 가지며 광학 필름(100)의 표면 상에 입사된 빛이 미세구조(110)의 표면에 의해 다양한 방향으로 반사되도록 한다. 또한, 미세구조(110)는 반구형, 사각뿔형, 원기둥형, 박스형, 쇄기형 또는 임의의 형태를 가질 수 있다. 따라서, 다수의 미세구조(110)에 의해 조명이나 태양 등 광원이 존재하거나, 사용자의 지문과 같은 얼룩이 광학 필름(100)의 표면에 부착되더라도 얼룩은 거의 눈에 띄지 않으므로 디스플레이 성능의 저하가 억제되고 선명도가 개선되는 효과가 있다.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. In addition, 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.
상기 마크(120)는 미세구조(110)를 포함하여 위치 정보를 광학장치에서 감지할 수 있도록 하기 위한 것으로, 도 3 및 도 4 에 나타난 바와 같이 가상의 격자선의 교점을 중심으로 일정한 간격을 두고 형성된다. 각각의 마크(120)는 마크값을 가지고, 마크값은 적어도 두 개 이상의 상이한 수이다. 그리고, 마크(120)의 형태는 원형, 타원형, 다각형, 직선 등 다양한 형태를 가질 수 있고, 하나의 광학 필름(100)에는 한 종류의 마크(120)를 사용하는 것이 바람직하다.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.
이때, 마크(120)가 가상의 격자선의 교점을 중심으로 형성되는 위치에 따라 마크값이 결정된다. 광학 장치는 이러한 다수의 마크(120)를 감지하여 위치 정보를 결정한다. At this time, 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.
상기 가상의 격자선은 광학 필름(100) 상에 눈에 보이지 않는 기준선으로서, 일정한 간격을 두고 가로 및 세로로 형성된다. 격자선사이의 거리는 대략 250㎛ 내지 300㎛가 바람직하다. 가상의 격자선의 교점을 중심으로 일정한 간격을 두고 마크(120)가 형성되는데 격자선사이의 거리의 1/4 내지 1/8이 바람직하고, 격자선의 교점을 중심으로 격자선상의 4방향으로 형성될 수 있다. 격자선의 교점마다 하나의 마크(120)를 연관시켜 형성할 수도 있으나 마크(120)와 격자선의 교점과의 거리를 1/4와 1/8로 두가지로 분류하여 하나의 격자선의 교점에 두 개 이상의 마크(120)와 연관시킬 수도 있다.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 μm to 300 μm. 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.
광학 장치에서 다수의 마크(120)를 이용하여 가상의 격자선을 기준으로 마크(120)가 형성된 위치를 이용하여 위치 정보를 결정하게 된다. 예를 들어, 광학 장치에서 6x6 크기의 인코딩 패턴을 감지한 경우 가로세로 6개씩 36개의 마크(120)는 각각의 마크값을 가지고 있고, 각각의 마크값을 이용하여 절대 위치정보를 광학 장치에서 판단할 수 있다.In the optical apparatus, 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.
기존의 광학 필름(100)은 미세구조(110)가 반복적으로 형성되어 지나친 고밀도로 인하여 광학 필름(100) 하단의 디스플레이의 밝기를 저하시키고, 디스플레이를 흐릿하게 보이는 단점이 있었으나 마크(120)만 미세구조(110)로 형성하는 경우 디스플레이를 흐릿하게 보이는 효과를 감소시킬 수 있는 효과가 있다.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.
광학 필름(100)은 투명한 재질로서 폴리에틸렌 테레프탈레이트(PET), 폴리에틸렌 나프탈레이트(PEN), 배향된 폴리프로필렌, 폴리카르보네이트, 트리아세테이트 등으로 제조된 플라스틱 필름, 유리를 포함하되, 이에 국한되지 않는다. 이러한 광학 필름(100)은 광학 필름(100)의 층 구조, 특정용도 등에 따라 다양한 두께로 사용될 수 있다. 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. 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.
또한 광학필름(100)은 도 5 에 도시된 바와 같이 하단에 가시광선은 투과시키고 적외선만 반사시키는 적외선 반사층(130)을 더 포함하여 광학장치에서 광학필름(100)으로 방출한 적외선을 반사하여 광학장치의 이미지센서에 효율적으로 도달하도록 할 수 있다. In addition, 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.
그리고 광학 필름(100)은 디스플레이 장치의 표면층 혹은 내부에 삽입될 수도 있지만, 디스플레이와 분리되어 형성되는 경우 광학 필름(100) 하단에 접착층(200)을 더 포함하여 모니터, 스크린 등의 표면에 부착할 수도 있다.In addition, the optical film 100 may be inserted into the surface layer or the inside of the display device. However, when the optical film 100 is formed separately from the display, 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.
이상으로 본 발명의 기술적 사상을 예시하기 위한 바람직한 실시예와 관련하여 설명하고 도시하였지만, 본 발명은 이와 같이 도시되고 설명된 그대로의 구성 및 작용에만 국한되는 것이 아니며, 기술적 사상의 범주를 일탈함이 없이 본 발명에 대해 다수의 변경 및 수정이 가능함을 당업자들은 잘 이해할 수 있을 것이다. 따라서, 그러한 모든 적절한 변경 및 수정과 균등물들도 본 발명의 범위에 속하는 것으로 간주되어야 할 것이다.As described above and described with reference to a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, it is a deviation from the scope of the technical idea It will be understood by those skilled in the art that many modifications and variations can be made to the invention without departing from the scope of the invention. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (4)

  1. 광학 장치에서 표면에 형성된 인코딩 패턴을 감지하여 위치 정보를 판단할 수 있도록 하기 위한 미세구조화 광학 필름에 있어서,In the microstructured optical film to detect the encoding pattern formed on the surface in the optical device to determine the position information,
    표면상에 위치 정보를 나타내는 다수의 마크와 마크 이외 영역을 포함하고,Including a plurality of marks representing the positional information on the surface and an area other than the marks,
    상기 다수의 마크 각각은 다수의 미세구조로 이루어지며 상기 광학 장치가 감지하는 광 반사를 하는 것인,Each of the plurality of marks is made of a plurality of microstructures and to reflect light detected by the optical device,
    미세구조화 광학 필름.Microstructured optical film.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 미세구조는 반구형, 사각뿔형, 원기둥형, 박스형, 쇄기형 중 어느 하나의 형태인 것을 특징으로 하는 미세구조화 광학 필름.The microstructure is a microstructured optical film, characterized in that any one form of hemispherical, square pyramid, cylindrical, box, wedge.
  3. 제 1 항에 있어서,The method of claim 1,
    상기 마크는, The mark is,
    적어도 두 개의 상이한 마크값 중 어느 하나를 가지고, 가상의 격자선의 교점을 중심으로 형성되는 위치에 따라 상기 마크값이 결정되는 것을 특징으로 하는 미세 구조화 광학 필름.The microstructured optical film having any one of at least two different mark values, wherein the mark values are determined according to a position formed around an intersection of a virtual grid line.
  4. 제 1 항에 있어서,The method of claim 1,
    하단부에 가시광선은 투과시키지만 적외선은 반사시키는 적외선 반사층을 더 포함하는 것을 특징으로 하는 미세 구조화 광학필름.The microstructured optical film further comprises an infrared reflecting layer which transmits visible light but reflects infrared light at the lower end.
PCT/KR2013/000613 2013-01-25 2013-01-25 Microstructured optical film WO2014115913A1 (en)

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JP2003256137A (en) * 2002-02-28 2003-09-10 Kokuyo Co Ltd Display and transparent sheet
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KR20060014436A (en) * 2003-06-06 2006-02-15 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Microstructured optical film and production process thereof
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