WO2001004967A1 - Dispositif d'affichage à source lumineuse - Google Patents

Dispositif d'affichage à source lumineuse Download PDF

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Publication number
WO2001004967A1
WO2001004967A1 PCT/JP2000/004439 JP0004439W WO0104967A1 WO 2001004967 A1 WO2001004967 A1 WO 2001004967A1 JP 0004439 W JP0004439 W JP 0004439W WO 0104967 A1 WO0104967 A1 WO 0104967A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
emitting diode
mold
resin
source device
Prior art date
Application number
PCT/JP2000/004439
Other languages
English (en)
Japanese (ja)
Inventor
Sachihiro Mukaida
Original Assignee
Baybright Ltd.
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
Priority claimed from JP19556499A external-priority patent/JP3471665B2/ja
Application filed by Baybright Ltd. filed Critical Baybright Ltd.
Publication of WO2001004967A1 publication Critical patent/WO2001004967A1/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
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/10—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices having separate containers
    • H01L25/13—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices having separate containers the devices being of a type provided for in group H01L33/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the present invention relates to a display light source device that can obtain uniform surface light emission using a light emitting diode as a light source.
  • this type of display light source device has been used for various purposes, such as a backlight for an advertisement signboard and an electric display panel for notifying various kinds of information.
  • These light sources are generally used as a fluorescent lamp or a neon sign tube. Etc. were used.
  • Light emitting diodes are also known as one of the light sources. They are mainly used for displays and displays, and they are mounted on various devices to turn on and off the power and indicate the operating status. It was often used as a lamp.
  • the conventional technology described above has a problem that when the light source is a fluorescent lamp or a neon sign tube, the replacement work is troublesome and the cost increases because the durability time is shorter than that of the light emitting diode. .
  • fluorescent lamps and the like have a problem in that they emit light in a discharge manner, so that the on / off time is long, and that the photoelectric conversion efficiency is relatively low, so that power consumption is large.
  • display light source devices that use light-emitting diodes have a longer life than fluorescent lamps, and have extremely high visibility and brightness.They do not discharge light, so they turn on and off quickly and have high photoelectric conversion efficiency. Low power consumption, shockproof Although it has the advantage of being superior in impact resistance, it has the following problems.
  • a light emitting diode can obtain a high-luminance luminous flux due to its characteristics, but its directional angle is very narrow, so even if it is arranged in a high-density matrix, it can be used as a backlight for advertising signs.
  • the light was illuminated and darkened between the area where the light beam hit and the area where the light beam did not hit, making it difficult to obtain uniform surface light emission.
  • the present invention has been made in view of the above-mentioned problems of the prior art, and has excellent characteristics of a light-emitting diode and low power consumption without generating uneven light and darkness.
  • the gist of the present invention for achieving the above-described object is as follows.
  • a mold a light-emitting diode disposed in the mold, a reflector disposed at a position facing a head of the light-emitting diode, and the mold so as to bury the light-emitting diode and the reflector. And a light-dispersing resin laminated on the upper surface side of the light-transmitting resin.
  • the mold has an opening on the top side, and the inside of the bottom and side faces is covered with a highly reflective material having high light reflection efficiency.
  • the light emitting diode is disposed in the mold with its head facing upward toward the opening of the mold.
  • the reflector is configured to reflect a high-luminance light beam with a narrow directivity angle emitted from the head of the light-emitting diode at a wide angle from the center of the light beam in all directions.
  • the light-transmitting resin is disposed at a position facing the head of the light-emitting diode in the mold, and the translucent resin entirely covers the reflective material located above the light-emitting diode in the mold. Filled in the form to the position where it gets,
  • the display light source device wherein the light-dispersing resin is stacked on the upper surface of the light-transmitting resin in a state of covering the upper surface of the mold.
  • the reflector is formed in a substantially conical shape with a top portion facing the center of the light beam of the light emitting diode, and a through-hole for transmitting the center of the light beam is formed along the central axis of the reflector.
  • the holder member comprises: a mounting ring externally fitted to a base end of the light emitting diode; and a supporting wire extending extremely finely from the mounting ring and fixing the reflecting material in advance.
  • the light-dispersing resin is obtained by mixing a light-dispersing material and a colorant having a similar color to the emission color of the light-emitting diode in a translucent resin.
  • the mold is formed in a narrow width extending in a longitudinal direction, and a plurality of light emitting diodes are arranged in the mold in a line at predetermined intervals.
  • the display light source device according to [2], [3] or [4].
  • a mold a light-emitting diode disposed in the mold, a light-transmitting resin filled in the mold so as to bury the light-emitting diode, and light to be laminated on the upper surface side of the light-transmitting resin.
  • the formwork has an opening on the top side, and the inside of the bottom and side faces are covered with a highly reflective material having a high light reflection efficiency.
  • the light emitting diode is disposed in the mold with a head thereof facing a bottom surface or a side surface of the mold.
  • the translucent resin is filled in the mold to a position where the light emitting diode can be entirely covered in the mold,
  • the display light source device wherein the light-dispersing resin is stacked on the upper surface of the light-transmitting resin in a state of covering the upper surface of the mold.
  • a light-transmitting resin molded into a flat plate shape spreading in a plane direction, a plurality of light-emitting diodes embedded and arranged in the light-transmitting resin at predetermined intervals, and each light-emitting diode in the light-transmitting resin.
  • a reflector disposed at a position facing the head of the gate, and a light-dispersing resin laminated in advance on the upper surface side of the light-transmitting resin, wherein the light-transmitting resin and the light-dispersing resin are cut into a desired shape. Then, the cut surface and the bottom surface are covered with a highly reflective material having high light reflection efficiency,
  • Each of the light emitting diodes is embedded in the translucent resin cut into the desired shape, with the head thereof facing upward to the upper surface of the translucent resin,
  • Each of the reflectors reflects a light beam having a narrow directivity angle and a high brightness emitted from the head of each of the light emitting diodes at a wide angle from the center of the light beam to the entire circumference.
  • a display light source device which is disposed at a position facing a head of a light emitting diode in a resin.
  • the high-luminance luminous flux emitted from the head with a narrow directivity angle is refracted and reflected in a wide angle from the center of the luminous flux by the reflector, and is distributed over a wide area to the bottom side of the mold. I do. Since the inside of the bottom and side surfaces of the mold is covered with a highly reflective material, the light reflected in various directions within the mold can be averaged without decreasing brightness while passing through the translucent resin. Be transformed into Then, the light is irradiated to the outside through the light dispersion resin toward the upper surface side of the opening of the mold.
  • the reflecting material may be formed, for example, in a substantially conical shape in which the top is opposed to the center of the light flux of the light emitting diode.
  • the reflecting material is arranged at a position facing the head of the light emitting diode via the holder member, positioning can be easily performed.
  • the holder member is constituted by a mounting ring externally fitted to the base end portion of the light emitting diode, and a supporting wire rod which protrudes extremely finely from the mounting ring and fixes the reflecting material in advance, the holder member can be reliably and reliably provided.
  • the reflector can be easily positioned in the right place, and the light is not obstructed as much as possible.
  • the light dispersion resin is a mixture of a light dispersion material and a colorant having a similar color to the emission color of the light emitting diode in a light transmitting resin, clearer and more vivid light can be obtained. Can be.
  • such a configuration is achieved by forming the mold in a narrow width extending in the longitudinal direction, and arranging a plurality of light emitting diodes in a row in the mold at predetermined intervals.
  • the light emitting diode has a head portion. You may comprise so that it may be arrange
  • a light-dispersing resin is previously laminated on the upper surface side of the plate-shaped translucent resin without using the mold, and this is cut into a desired shape later. I do.
  • a plurality of light emitting diodes and a reflecting material may be buried side by side at predetermined intervals in the cut translucent resin. Thereby, various types of display light source devices can be easily formed.
  • the bottom surface or cut surface of the translucent resin is covered with a highly reflective material.
  • FIG. 1 is a perspective view showing a display light source device according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
  • FIG. 3 is a perspective view showing a holder member included in the display light source device according to the first embodiment of the present invention.
  • FIG. 4 is a schematic diagram illustrating a state in which the reflector of the display light source device according to the first embodiment of the present invention reflects a light beam of the light emitting diode in a wide area.
  • FIGS. 5A and 5B are an end view and a front view, respectively, showing a device in which the display light source devices according to the first embodiment of the present invention are arranged in a flat plate.
  • FIG. 6 is an end view showing a device in which the display light source devices according to the first embodiment of the present invention are arranged in a circle.
  • FIG. 7 is a perspective view showing a display light source device according to a second embodiment of the present invention. It is.
  • FIG. 8 is a sectional view showing a display light source device according to a third embodiment of the present invention.
  • FIG. 9 is a sectional view showing a display light source device according to a fourth embodiment of the present invention.
  • FIG. 10 is a sectional view showing a display light source device according to a fifth embodiment of the present invention.
  • FIG. 11 is a perspective view showing a light-transmitting resin and a light-diffusing resin formed in a flat plate shape of a display light source device according to a sixth embodiment of the present invention.
  • FIG. 12 is a front view showing a drawn state when cutting a light-transmitting resin and a light-diffusing resin formed into a flat plate into a desired shape in the display light source device according to the sixth embodiment of the present invention.
  • FIG. 12 is a front view showing a drawn state when cutting a light-transmitting resin and a light-diffusing resin formed into a flat plate into a desired shape in the display light source device according to the sixth embodiment of the present invention.
  • FIG. 13 is a front view showing a state in which a light-transmitting resin and a light-diffusing resin molded into a flat plate shape of a display light source device according to a sixth embodiment of the present invention are cut into desired shapes.
  • FIG. 14 shows a light emitting diode formed by cutting a transparent resin and a light diffusing resin formed into a flat plate into a desired shape to constitute a display light source device according to the sixth embodiment of the present invention. It is sectional drawing explaining the operation
  • FIG. 15 is a perspective view showing a display light source device according to the sixth embodiment of the present invention.
  • the display light source device 10 is a device that can obtain uniform surface light emission by using the light emitting diode 20 as a light source.
  • the display light source device 10 includes a mold 11, a light emitting diode 20 disposed in the mold 11, and a head 21 of the light emitting diode 20.
  • a reflective material 30 disposed at an opposing position; a translucent resin 40 filling the mold 11 so as to bury the light emitting diode 20 and the reflective material 30; And a light dispersion resin 50 laminated on the upper surface of the light resin 40.
  • the mold 11 is formed in a narrow width extending in the longitudinal direction, and has an opening on the upper surface side where the trapezoidal cross section expands.
  • the inside of the bottom and side surfaces of the mold 11 is covered with a highly reflective material 12 having high light reflection efficiency.
  • a highly reflective material 12 having high light reflection efficiency.
  • various materials can be considered as the highly reflective material 12.
  • a mirror-finished metal layer, a white paint having high light reflection efficiency, or the like may be used.
  • a lead wire 13 for connecting a pair of lead wires 22 extending from the light emitting diode 20 is provided on the bottom surface of the mold 11.
  • a small hole may be formed in the bottom surface of the mold 11 so that each lead wire 22 of the light emitting diode 20 is extended to the outside.
  • the light emitting diodes 20 are arranged in the mold 11 so as to be arranged in a line at predetermined intervals.
  • the light emitting diode 20 as a light source has a longer life than fluorescent lamps and neon sign tubes, etc., and has extremely high visibility and brightness. It has characteristics such as low power consumption due to high efficiency and excellent impact resistance.
  • Each light emitting diode 20 is disposed in the mold 11 with its head 21 facing upward toward the opening of the mold 11. As shown in FIG. 2, each lead wire 22 extending from the light emitting diode 20 as described above is connected to a lead wire 13 on the bottom surface of the mold 11.
  • the reflecting member 30 is arranged at a position facing the head 21 of the light emitting diode 20 in the mold 11. With this reflector 30, the light emitting diode The high-luminance luminous flux emitted from the head 21 of 20 with a narrow directivity angle is set so as to be reflected from the center of the luminous flux so as to be dispersed in a wide angle in the entire circumferential direction. As shown in FIG. 3, specifically, the reflector 30 is formed in a substantially conical funnel shape whose top is opposed to the center of the light beam of the light emitting diode 20.
  • the top of the reflector 30 is cut out to form a through-hole 31, and the center of the luminous flux of the light-emitting diode 20 is directed upward along the central axis from the through-hole 31. It is set to be transparent.
  • the reflector 30 is preferably made of a metal such as aluminum which is easy to process and has light reflectivity.
  • the reflecting member 30 is disposed at a position facing the head 21 of the light emitting diode 20 via the holder member 35.
  • the holder member 35 includes a mounting ring 36 fitted externally to the base end of the light-emitting diode 20, and an extra-thin shape extending from the mounting ring 36 to extend the reflecting material 3. And a support wire 37 to which 0 is fixed in advance.
  • the translucent resin 40 is filled in the mold 11 to a position where it can entirely cover the reflective material 30 located above the light emitting diode 20 in the mold 11. ing.
  • the transparent resin 40 is preferably a colorless and transparent epoxy resin.
  • the light dispersing resin 50 is laminated on the upper surface side of the translucent resin 40 so as to cover the upper surface side of the mold 11.
  • the light-dispersing resin 50 is specifically formed by mixing a light-dispersing material and a coloring agent having a color similar to the light emission color of the light-emitting diode 20 in a light-transmitting resin.
  • an epoxy resin may be used in the same manner as the translucent resin 40 described above.
  • the light dispersing material corresponds to titanium oxide, magnesium oxide, or the like. If a fluorescent dye having a similar color to the color of the light emitted from the light emitting diode 20 is used as the coloring agent, a brighter color can be obtained.
  • the light emitting diodes 20 are arranged in a line at predetermined intervals in the mold 11 and the head of each light emitting diode 20 is arranged.
  • a reflector 30 is arranged at a position facing 21.
  • each reflector 30 is mounted on the light emitting diode 20 via the holder member 35, the reflector 30 can be reliably and easily mounted in a state where the reflector 30 is positioned at an appropriate position.
  • the mounting ring 36 of the holder member 35 is externally fitted to the base end of the light emitting diode 20 so that the mounting operation is easy.
  • the support wire 37 extends in an extremely fine shape, the light emitting diode is provided. It is not necessary to block the light of 20 degrees.
  • the mold 11 is filled with a light-transmitting resin 40 so as to completely cover the light-emitting diode 20 and the reflecting material 30, and a light-dispersing resin is further placed on the light-transmitting resin 40. 50 may be stacked.
  • the display light source device 10 manufactured in this manner can be used for various purposes, and is particularly preferably applied to a backlight of an advertising signboard or the like.
  • each display light source device 10 is closely arranged in a planar frame A. Install. If an advertisement sheet 60 such as a translucent photographic film is attached on a plane on which the display light source devices 10 are arranged, the advertisement sheet 60 can emit light.
  • an advertisement sheet 60 such as a translucent photographic film is attached on a plane on which the display light source devices 10 are arranged, the advertisement sheet 60 can emit light.
  • the display light source devices 10 are arranged closely on the outer peripheral surface of the cylinder. Can also be installed. In such a case as well, by adhering the advertisement sheet 60 on a circumferential surface on which the display light source devices 10 are arranged, the circumferential advertisement sheet 60 can emit light.
  • the translucent resin 40 Since the inside of the bottom and side surfaces of the mold 11 is covered with the highly reflective material 12, light reflected in various directions in the mold 11 passes through the translucent resin 40. Spread evenly so that they are averaged out. Here, since the light passes through the translucent resin 40, the luminance does not decrease compared to the case where the light passes through the air, and the entire area of the translucent resin 40 becomes the diffusion light source area.
  • the light in the mold 11 goes to the upper surface side of the opening, but is uniformly distributed by passing through the light dispersion resin 50, and is radiated to the outside from the entire upper surface of the light dispersion resin 50. .
  • the light dispersing resin 50 In the light dispersing resin 50, light is diffusely reflected in various directions in a fine manner, so that the light stays longer.
  • the light dispersing resin 50 is mixed with a colorant similar in color to the emission color of the light emitting diode 20, clearer and brighter light can be obtained.
  • FIG. 7 shows a second embodiment of the present invention.
  • a mold 11 A is formed into the shape of a letter “T”. As a result, it can be used as it is as a character for light emission display.
  • the shape of the mold 11 ⁇ is not limited to the ⁇ of the alphabet, but can be another alphabet or a 7-segment shape representing a number.
  • the same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.
  • FIG. 8 shows a third embodiment of the present invention.
  • each light emitting diode 20 is disposed in the mold 11 with its head 21 facing downward toward the bottom of the mold 11.
  • the reflective material 30 is in contact with the highly reflective material 12 on the bottom surface of the mold 11 and the base end of the light emitting diode 20 is located at a position separated from the lower surface of the light dispersion resin 50 by a distance below. Have been.
  • FIG. 9 shows a fourth embodiment of the present invention.
  • the light emitting diode 20 is provided without providing the reflecting material 30 at a position facing the head 21 of the light emitting diode 20, and the head 21 is formed on the bottom surface of the form 11. It is disposed in the formwork 11 in a downward direction toward the mold.
  • the base end of the light emitting diode 20 is disposed at a position separated from the lower surface of the light dispersing resin 50 below.
  • the light diffusion efficiency in the translucent resin 40 is slightly lower than that of the first to third embodiments by omitting the reflecting material 30.
  • the light of the light emitting diode 20 is uniformly refracted and reflected in various directions in the mold 11, averaged in the translucent resin 40, and then passed through the light dispersing resin 50 to the outside. Irradiated.
  • the structure can be simplified and the device can be easily manufactured by the amount of omitting the reflecting material 30, and the cost can be significantly reduced.
  • FIG. 10 shows a fifth embodiment of the present invention.
  • the light-emitting diode 20 is placed in a state in which the light-emitting diodes 20 are opposed to each other sideways without providing the reflecting material 30 at a position facing the head 21 of the light-emitting diode 20. It is arranged in the form 11.
  • the same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.
  • the light of the light emitting diode 20 is
  • the light emitting diode 20 may be disposed in the mold 11 with its head 21 facing sideways on the side of the mold 11. Good.
  • FIGS. 11 to 15 show a sixth embodiment of the present invention.
  • the present embodiment is molded from a flat transparent resin 40 which spreads in a plane direction.
  • the light dispersion resin 50 is also laminated in a plate shape.
  • the translucent resin 40 and the light dispersing resin As shown in FIGS. 12 and 13, the translucent resin 40 and the light dispersing resin
  • 0 is cut into a desired shape such as a T-shape, and a high-reflection material having high light reflection efficiency is applied to the cut surface and the bottom surface on the side of the light-transmitting resin 40.
  • Vertical holes 41 are formed at predetermined intervals in the translucent resin 40 cut into a desired shape as shown in FIG. 14 (a).
  • the deepest portion 41 a of the vertical hole 41 is formed in a conical shape.
  • the light-reflective paint is applied to the deepest portion 41 a to directly serve as the reflecting material 30. I have.
  • each vertical hole 41 of the translucent resin 40 is filled with a translucent resin of the same quality with the light emitting diode 20 inserted.
  • a protective base plate 70 is adhered to the lower surface of the translucent resin 40, and a lead connecting the lead wire 22 of the light emitting diode 20 is provided on the protective base plate 70.
  • the wiring duct member 71 for covering the wiring 13 is attached.
  • the light dispersing resin 50 is previously laminated on the upper surface side of the plate-shaped translucent resin 40 without using the mold 11, and this is later formed into a desired shape. Since the light source device 10 is cut into various shapes, it is possible to easily form display light sources 10 of various shapes.
  • the reflector 30 can be easily formed at a predetermined position without using the holder member 35.
  • the display light source device according to the present invention is not limited to the various embodiments described above.
  • the reflecting material 30 is not limited to the illustrated one having a substantially conical shape, and may be, for example, a disk-shaped convex reflecting mirror. Industrial applicability
  • the display light source device has a longer life than fluorescent lamps and neon sign tubes, and has extremely high visibility and luminance. Equipped with characteristics of light emitting diode such as low power consumption due to high photoelectric conversion efficiency and excellent impact resistance, etc. In addition, uneven brightness of light does not occur, high brightness and uniform surface with low power consumption Light emission can be obtained.

Abstract

L'invention concerne un dispositif d'affichage à source lumineuse muni de diodes électroluminescentes qui présentent d'excellentes caractéristiques. Ce dispositif émet une lumière constante, de brillance élevée et de surface uniforme, et ce même pour une faible consommation d'énergie. Lorsqu'une diode électroluminescente (20) fonctionne, un flux lumineux de brillance élevée émis depuis la tête (21) de cette diode selon un angle d'orientation étroit est réfléchi par réfraction selon un grand angle, vers l'entière périphérie et depuis le centre de ce flux lumineux, à l'aide d'un élément réfléchissant (30), ledit flux lumineux étant ensuite diffusé vers la surface inférieure et similaire d'une ossature (11). Les côtés intérieurs de cette surface inférieure et les surfaces latérales de l'ossature (11) sont recouvertes d'un matériau hautement réfléchissant (12), la lumière étant réfléchie dans différentes directions à l'intérieur de ladite ossature (11) avec une brillance uniforme, qui ne faiblit pas même lorsque la lumière traverse une résine translucide (40). La lumière se dirige ensuite vers la surface supérieure ouverte de l'ossature (11), avant de traverser une résine de dispersion lumineuse (50) et de finalement atteindre l'extérieur.
PCT/JP2000/004439 1999-07-09 2000-07-04 Dispositif d'affichage à source lumineuse WO2001004967A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19556499A JP3471665B2 (ja) 1999-02-15 1999-07-09 表示用光源装置
JP11/195564 1999-07-09

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WO2001004967A1 true WO2001004967A1 (fr) 2001-01-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003023748A3 (fr) * 2001-09-11 2003-11-27 Ego S R O Panneau lumineux a diodes electroluminescentes
US7118251B1 (en) 2003-05-23 2006-10-10 Ilight Technologies, Inc. Illumination device for simulating channel letters
ES2261087A1 (es) * 2005-04-27 2006-11-01 Comercial Trasluz Imagen E Iluminacion S.L. Lampara luminica.
EP3564934A1 (fr) * 2018-04-30 2019-11-06 Signall Signe lumineux

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4844400A (fr) * 1971-10-09 1973-06-26
JPS5038262U (fr) * 1973-08-06 1975-04-21
JPS56169305U (fr) * 1980-05-19 1981-12-15
JPS5798604U (fr) * 1980-12-09 1982-06-17
JPS594655U (ja) * 1982-06-30 1984-01-12 サンケン電気株式会社 発光ダイオ−ドを使用した面照明装置
JPS6156712U (fr) * 1984-09-19 1986-04-16
JPS63127161U (fr) * 1987-02-12 1988-08-19
JPS63188634U (fr) * 1987-05-27 1988-12-02
JPH073154U (ja) * 1993-06-01 1995-01-17 株式会社アドビック 発光ダイオードおよび光反射部材ならびに警告灯
JPH09138402A (ja) * 1995-11-15 1997-05-27 Kouha:Kk 液晶表示装置照明用ｌｅｄバックライト装置
JPH10163527A (ja) * 1996-11-27 1998-06-19 Matsushita Electron Corp 面状光源

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4844400A (fr) * 1971-10-09 1973-06-26
JPS5038262U (fr) * 1973-08-06 1975-04-21
JPS56169305U (fr) * 1980-05-19 1981-12-15
JPS5798604U (fr) * 1980-12-09 1982-06-17
JPS594655U (ja) * 1982-06-30 1984-01-12 サンケン電気株式会社 発光ダイオ−ドを使用した面照明装置
JPS6156712U (fr) * 1984-09-19 1986-04-16
JPS63127161U (fr) * 1987-02-12 1988-08-19
JPS63188634U (fr) * 1987-05-27 1988-12-02
JPH073154U (ja) * 1993-06-01 1995-01-17 株式会社アドビック 発光ダイオードおよび光反射部材ならびに警告灯
JPH09138402A (ja) * 1995-11-15 1997-05-27 Kouha:Kk 液晶表示装置照明用ｌｅｄバックライト装置
JPH10163527A (ja) * 1996-11-27 1998-06-19 Matsushita Electron Corp 面状光源

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003023748A3 (fr) * 2001-09-11 2003-11-27 Ego S R O Panneau lumineux a diodes electroluminescentes
US7118251B1 (en) 2003-05-23 2006-10-10 Ilight Technologies, Inc. Illumination device for simulating channel letters
ES2261087A1 (es) * 2005-04-27 2006-11-01 Comercial Trasluz Imagen E Iluminacion S.L. Lampara luminica.
EP3564934A1 (fr) * 2018-04-30 2019-11-06 Signall Signe lumineux

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