WO2021167170A1 - Plaque en plastique transparent pour dispositif électroluminescent, dispositif électroluminescent, et procédé de fabrication de plaque en plastique transparent pour dispositif électroluminescent - Google Patents

Plaque en plastique transparent pour dispositif électroluminescent, dispositif électroluminescent, et procédé de fabrication de plaque en plastique transparent pour dispositif électroluminescent Download PDF

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Publication number
WO2021167170A1
WO2021167170A1 PCT/KR2020/006901 KR2020006901W WO2021167170A1 WO 2021167170 A1 WO2021167170 A1 WO 2021167170A1 KR 2020006901 W KR2020006901 W KR 2020006901W WO 2021167170 A1 WO2021167170 A1 WO 2021167170A1
Authority
WO
WIPO (PCT)
Prior art keywords
transparent plastic
light
plastic plate
emitting device
light reflection
Prior art date
Application number
PCT/KR2020/006901
Other languages
English (en)
Korean (ko)
Inventor
김광원
Original Assignee
김광원
주식회사 연암테크
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 김광원, 주식회사 연암테크 filed Critical 김광원
Publication of WO2021167170A1 publication Critical patent/WO2021167170A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/06—Signs, boards or panels, illuminated from behind the insignia using individual cut-out symbols or cut-out silhouettes, e.g. perforated signs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/12—Signs, boards or panels, illuminated from behind the insignia using a transparent mirror or other light reflecting surface transparent to transmitted light whereby a sign, symbol, picture or other is visible only when illuminated
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

Definitions

  • the present invention relates to a transparent plastic plate for a light emitting device capable of increasing the forward reflectivity and diffusivity of light, a light emitting device, and a method for manufacturing a transparent plastic plate for a light emitting device.
  • an advertisement device that is widely used to display a company name, etc. in a branch is very simple.
  • an advertisement device using a liquid crystal panel has recently been in the spotlight, it has a problem in that it is not suitable as an advertisement device for simply and cheaply displaying a company name in a general store because the installation cost is too high.
  • a specific character or figure is divided into a plurality of transparent plastic plates and engraved by engraving, and the light irradiated from the light source installed on the side of the plurality of laminated plates collides with the engraved area and the light is irradiated forward. It is possible to produce characters and figures with various colors at low cost by forming a colored part that allows light of a specific color to pass through on the side of each plate so that figures and characters are transparent in various colors. Therefore, it is evaluated as overcoming the limitations of the conventional advertising device by the neon method.
  • Patent Document 1 KR 10-2054919 B1 (2019.12.12. Announcement)
  • the present invention has been devised to solve the various problems of the prior art as described above, and a transparent plastic plate for a light emitting device capable of increasing the reflectivity and diffusivity of light forward by forming a rough engraved surface on a transparent plastic plate.
  • An object of the present invention is to provide a plastic plate, a light emitting device, and a method for manufacturing a transparent plastic plate for a light emitting device.
  • the transparent plastic plate for a light emitting device has a plurality of light reflection grooves along the traveling direction of the light so that the light irradiated from the light source installed on the side is reflected and refracted.
  • the depth of the light reflection groove formed in the central portion of the transparent plastic plate is 40 to 60 ⁇ m, and the depth of the light reflection groove formed in the portion adjacent to the light source is 10 to 20 ⁇ m.
  • the difference between the depth of the light reflection groove formed in the central portion of the transparent plastic plate and the light reflection groove formed in the portion adjacent to the light source is preferably 20 to 50 ⁇ m.
  • a plurality of light reflection grooves formed in a straight line from the central portion to a portion adjacent to the light source may be formed in the transparent plastic plate, and the plurality of light reflection grooves may be spaced apart from each other and positioned in parallel.
  • a plurality of concave grooves may be formed between the plurality of light reflection grooves.
  • a plurality of light reflection grooves in various patterns may be formed in the transparent plastic plate from the central portion toward a portion adjacent to the light source.
  • the light emitting device is characterized in that it includes the above-described transparent plastic plate for the light emitting device.
  • the transparent plastic plate may be provided in plurality, and the light reflection grooves formed in each of the plurality of transparent plastic plates are arranged so as not to overlap each other.
  • a light reflective groove is formed in the transparent plastic plate along the traveling direction of the light so that light irradiated from a light source installed on the side of the transparent plastic plate is reflected and refracted.
  • a cutting tool having a semi-conical blade tip is inserted into the spindle of a machine tool, the rotations per minute (rpm) of the spindle is 18,000 to 24,000, and the feed rate per minute of the cutting tool (m) /min) is set to 8 to 12, and then, in the transparent plastic plate, the light reflection grooves are formed so as to gradually deepen from the part adjacent to the light source toward the center part, and by the heat generated in the process of forming the light reflection grooves
  • the light reflection groove is characterized in that the cutting chip is melted and pressed to form a white layer of a certain pattern.
  • the number of revolutions per minute (rpm) of the spindle is 20,000 and the feed rate per minute (m/min) of the cutting tool is 10.
  • the depth of the light reflection groove formed in the central portion of the transparent plastic plate is 40 to 60 ⁇ m, it is preferable that the depth of the light reflection groove formed in the portion adjacent to the light source is 10 to 20 ⁇ m.
  • the difference between the depth of the light reflection groove formed in the central portion of the transparent plastic plate and the light reflection groove formed in the portion adjacent to the light source is preferably 20 to 50 ⁇ m.
  • the present invention has the following effects.
  • the present invention forms a light reflection groove in transparent plastic with an optimized combination of the rotation speed of the spindle and the feed speed of the cutting tool, and the cutting chips are melted and pressed in the light reflection groove by the heat generated in the process of forming the light reflection groove There is an effect of increasing the reflectivity and diffusivity of light forward by forming a white layer of a certain pattern.
  • FIG. 1 is an exploded view showing a light emitting device according to the present invention.
  • FIG. 2 is a view showing a state in which a transparent plastic plate and a reflecting plate are coupled to the main body in the light emitting device according to the present invention.
  • FIG 3 is a photograph showing a state in which the light reflection groove formed in the transparent plastic plate for a light emitting device according to the first embodiment of the present invention is photographed under a microscope.
  • FIG. 4 is an enlarged photograph showing the light reflection groove photographed with a microscope in FIG. 3 .
  • FIG. 5 is a view showing a transparent plastic plate for a light emitting device according to a first embodiment of the present invention, wherein (a) is a photograph showing a state in which light reflection grooves in a straight line are formed horizontally, (b) is a light in a straight shape It is a photograph showing a state in which the reflective grooves are formed vertically.
  • FIG. 6 is a photograph showing a state in which transparent plastic plates are laminated so that the light reflection grooves of (a) and (b) in FIG. 5 cross each other.
  • FIG. 7 is a microscopic photograph of a transparent plastic plate for a light emitting device according to a second embodiment of the present invention.
  • FIG. 8 is a view showing a transparent plastic plate for a light emitting device according to a second embodiment of the present invention, (a) is a straight-line light reflective grooves are formed horizontally, and a plurality of concave grooves are formed between the plurality of light reflection grooves. A photograph showing the state, (b) is a photograph showing a state in which the light reflection grooves in a straight line are formed vertically and a plurality of concave grooves are formed between the plurality of light reflection grooves.
  • FIG. 9 is a photograph showing a state in which transparent plastic plates are laminated so that the light reflection grooves of (a) and (b) in FIG. 8 cross each other.
  • FIG. 10 is a view showing a transparent plastic for a light emitting device according to a third embodiment of the present invention, (a) and (b) are photographs showing a state in which a plurality of light reflection grooves in various patterns are formed.
  • FIG. 11 is a photograph showing a state in which transparent plastic plates are laminated so that the light reflection grooves of (a) and (b) in FIG. 10 do not overlap each other.
  • FIG. 12 is a photograph showing a state of manufacturing a transparent plastic plate for a light emitting device according to the present invention.
  • FIG. 13 is a view showing a cutting tool used when manufacturing a transparent plastic plate for a light emitting device according to the present invention, (a) is a front view, (b) is a side view.
  • FIG. 1 is an exploded view of a light emitting device according to the present invention
  • FIG. 2 is a view showing a state in which a transparent plastic plate and a reflector are coupled to the main body in the light emitting device according to the present invention.
  • the light emitting device 1 includes a body 10 , a light source 20 , a transparent plastic plate 30 , a reflective plate 40 , and a cover 50 .
  • the body 10 is made in the form of a circular frame, has an opening in the center, and a transparent plastic plate 30 to be described later is positioned, and a reflective plate 40 is stacked on the transparent plastic plate 30 and a reflective plate 40 .
  • the cover 50 is located on the upper portion of the body 10 is coupled.
  • a light source 20 such as a light emitting diode (LED) is installed around the inner surface of the body 10 .
  • LED light emitting diode
  • Such a body 10 can be implemented not only in a circular shape, but also in a rectangular or polygonal shape.
  • FIG. 3 is a photograph showing a state in which the light reflection groove formed in the transparent plastic plate for a light emitting device according to the first embodiment of the present invention is photographed with a microscope
  • FIG. 4 is an enlarged view of the light reflection groove photographed with a microscope
  • FIG. 5 is a transparent plastic plate for a light emitting device according to the first embodiment of the present invention
  • (a) is a photograph showing a state in which the light reflection grooves in a straight shape are formed horizontally
  • (b) is It is a photograph showing the state in which the light reflection grooves of the straight line form are formed vertically.
  • FIG. 6 is a photograph showing a state in which transparent plastic plates are laminated so that the light reflection grooves of (a) and (b) in FIG. 5 cross each other.
  • a plurality of light reflection grooves 31 are provided along the traveling direction of the light so that light irradiated from the light source 20 installed on the side is reflected and refracted.
  • the depth of the plurality of light reflection grooves 31 is progressively deeper from the portion adjacent to the light source 20 toward the central portion of the transparent plastic plate 30 , and the inner surface of the light reflection groove 31 has a certain pattern of A white layer 31a is formed.
  • the light reflection groove 31 is formed to be deeper toward the center, it is possible to evenly irradiate the light of the light source 20 into the room.
  • the side cross-section of the light reflection groove 31 may be formed in various shapes, such as a V-shape or a U-shape.
  • the depth of the light reflection groove 31 formed in the central portion of the transparent plastic plate 30 is 40 to 60 ⁇ m, and the depth of the light reflection groove 31 formed in the portion adjacent to the light source 20 is 10 to 20 ⁇ m. It is preferable
  • the difference between the depth of the light reflection groove 31 formed in the central portion of the transparent plastic plate 30 and the light reflection groove 31 formed in the portion adjacent to the light source 20 is preferably 20 to 50 ⁇ m.
  • the transparent plastic plate 30 has a plurality of light reflection grooves 31 formed in a straight line from the central portion to a portion adjacent to the light source 20, and the plurality of light reflection grooves 31 are spaced apart from each other and arranged in parallel. can be located.
  • a white layer 31a of a certain pattern is formed on the inner surface of the light reflection groove 31, which generates high-temperature heat when the transparent plastic plate 30 is processed while the spindle to which the cutting tool is coupled rotates at high speed. It is formed by melting and pressing the cutting chips.
  • a plurality of transparent plastic plates 30 may be provided, and the light reflection recesses 31 formed in each of the plurality of transparent plastic plates 30 may be disposed so as not to overlap each other.
  • the plurality of transparent plastic plates 30 have the same size and area, and are stacked up and down.
  • the light reflection grooves 31 are formed in a row perpendicular to each other, the area where the light is reflected is evenly distributed over the entire area. The entire area is illuminated with even brightness.
  • FIG. 7 is a photograph taken under a microscope of a transparent plastic plate for a light emitting device according to a second embodiment of the present invention
  • FIG. 8 shows a transparent plastic plate for a light emitting device according to a second embodiment of the present invention
  • (a ) is a photograph showing a state in which the light reflection grooves of a straight line are formed horizontally and a plurality of concave grooves are formed between the plurality of light reflection grooves
  • (b) is a photo showing a state in which the light reflection grooves of the straight shape are formed vertically and a plurality of light reflection grooves are formed
  • It is a photograph showing a state in which a plurality of concave grooves are formed between the reflective grooves
  • FIG. 9 is a photograph showing a state in which transparent plastic plates are stacked so that the light reflection grooves of (a) and (b) in FIG. 8 cross each other.
  • a plurality of concave grooves 33 may be formed between the plurality of light reflection grooves 31 formed in the transparent plastic plate 30 according to the first embodiment described above.
  • These concave grooves 33 are formed by forming a predetermined number of concave grooves 33 as a unit at regular intervals.
  • the transparent plastic plate 30 may be provided in plurality, and the light reflection grooves 31 and the concave grooves 33 formed in each of the plurality of transparent plastic plates 30 are preferably arranged so as not to overlap each other. .
  • FIG. 10 is a view showing a transparent plastic for a light emitting device according to a third embodiment of the present invention
  • (a) and (b) are photographs showing a state in which a plurality of light reflection grooves in various patterns are formed
  • FIG. 11 is 10 is a photograph showing a state in which the transparent plastic plates are laminated so that the light reflection grooves of (a) and (b) do not overlap each other.
  • a plurality of light reflection grooves 35 having various patterns may be formed in the transparent plastic plate 30 from the central portion toward the portion adjacent to the light source 20 .
  • the light reflection groove 35 is formed to be deeper from the portion adjacent to the light source 20 toward the central portion.
  • a plurality of transparent plastic plates 30 may be provided, and the light reflection grooves 35 formed in each of the plurality of transparent plastic plates 30 are preferably disposed so as not to overlap each other.
  • FIG. 12 is a photograph showing a state of manufacturing the transparent plastic plate for a light emitting device according to the present invention
  • FIG. 13 shows a cutting tool used when manufacturing the transparent plastic plate for a light emitting device according to the present invention, (a) is a front view, (b) is a side view.
  • the light reflective grooves 31 and 35 along the traveling direction of the light so that the light irradiated from the light source 20 installed on the side of the transparent plastic plate 30 is reflected and refracted.
  • the cutting tool 2 having a blade tip 2a in a semi-conical shape is inserted into the spindle 3 of the machine tool, and the spindle 3 is After setting the revolutions per minute (rpm) to 18,000 to 24,000 and the feed rate per minute (m/min) of the cutting tool 2 to 8 to 12, from the portion adjacent to the light source 20 in the transparent plastic plate 30
  • the light reflection grooves 31 and 35 are formed so as to gradually deepen toward the central part. This melted and pressed to form a white layer 31a of a certain pattern.
  • the number of revolutions per minute (rpm) of the spindle 3 is 20,000, and the feed rate per minute (m/min) of the cutting tool 2 is 10.
  • the depth of the light reflection grooves 31 and 35 formed in the central portion of the transparent plastic plate 30 is 40 to 60 ⁇ m, and the depth of the light reflection grooves 31 and 35 formed in the portion adjacent to the light source 20 is 10 to 20 ⁇ m is preferred.
  • the difference between the depth of the light reflection grooves 31 and 35 formed in the central portion of the transparent plastic plate 30 and the depth of the light reflection grooves 31 and 35 formed in the portion adjacent to the light source 20 is 20 to 50 ⁇ m. desirable.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)

Abstract

Une plaque en plastique transparent pour un dispositif électroluminescent selon un premier aspect de la présente invention est une plaque en plastique transparent pour un dispositif électroluminescent, ayant une pluralité de rainures de réflexion de lumière formées dans un sens de déplacement de lumière de telle sorte que la lumière exposée à partir d'une source de lumière installée sur un côté est réfléchie et réfractée, les profondeurs de la pluralité de rainures de réflexion de lumière augmentant progressivement à partir d'une partie adjacente à la source de lumière vers la partie centrale de la plaque en plastique transparent, et les rainures de réflexion de lumière ayant une couche de couleur blanche d'un certain motif formé sur leurs surfaces internes.
PCT/KR2020/006901 2020-02-17 2020-05-28 Plaque en plastique transparent pour dispositif électroluminescent, dispositif électroluminescent, et procédé de fabrication de plaque en plastique transparent pour dispositif électroluminescent WO2021167170A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200018918A KR102335481B1 (ko) 2020-02-17 2020-02-17 발광장치용 투명 플라스틱판, 발광장치 및 발광장치용 투명 플라스틱판 제조방법
KR10-2020-0018918 2020-02-17

Publications (1)

Publication Number Publication Date
WO2021167170A1 true WO2021167170A1 (fr) 2021-08-26

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PCT/KR2020/006901 WO2021167170A1 (fr) 2020-02-17 2020-05-28 Plaque en plastique transparent pour dispositif électroluminescent, dispositif électroluminescent, et procédé de fabrication de plaque en plastique transparent pour dispositif électroluminescent

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KR (2) KR102335481B1 (fr)
WO (1) WO2021167170A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030082293A (ko) * 2002-04-17 2003-10-22 김광원 광고장치
KR20060003617A (ko) * 2004-07-07 2006-01-11 도요에이테크 가부시키가이샤 절삭 가공 방법, 절삭 가공 장치 및 금형 제작 방법
KR20070101656A (ko) * 2006-04-11 2007-10-17 박휴완 투광성 플라스틱 도광판 및 이를 이용한 조명장치
KR20080014228A (ko) * 2006-08-10 2008-02-14 김광원 컴퓨터 자동 조각기
US20090225530A1 (en) * 2005-12-27 2009-09-10 Showa Denko K.K. Light guide member, flat light source device, and display device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200425058Y1 (ko) * 2006-04-12 2006-09-01 오완호 발광다이오드를 이용한 광고판
KR102054919B1 (ko) 2017-09-21 2019-12-12 김광원 광표출장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030082293A (ko) * 2002-04-17 2003-10-22 김광원 광고장치
KR20060003617A (ko) * 2004-07-07 2006-01-11 도요에이테크 가부시키가이샤 절삭 가공 방법, 절삭 가공 장치 및 금형 제작 방법
US20090225530A1 (en) * 2005-12-27 2009-09-10 Showa Denko K.K. Light guide member, flat light source device, and display device
KR20070101656A (ko) * 2006-04-11 2007-10-17 박휴완 투광성 플라스틱 도광판 및 이를 이용한 조명장치
KR20080014228A (ko) * 2006-08-10 2008-02-14 김광원 컴퓨터 자동 조각기

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KR20210104324A (ko) 2021-08-25
KR20210114366A (ko) 2021-09-23
KR102335481B1 (ko) 2021-12-07
KR102416143B1 (ko) 2022-07-06

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