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KR810001254B1 - Solid state display apparatus - Google Patents

Solid state display apparatus Download PDF

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Publication number
KR810001254B1
KR810001254B1 KR7400710A KR740000710A KR810001254B1 KR 810001254 B1 KR810001254 B1 KR 810001254B1 KR 7400710 A KR7400710 A KR 7400710A KR 740000710 A KR740000710 A KR 740000710A KR 810001254 B1 KR810001254 B1 KR 810001254B1
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Prior art keywords
light
infrared
visible
light emitting
display apparatus
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Korean (ko)
Inventor
겐이찌 고니시
쇼헤이 후지와라
Original Assignee
미요시 세이지
마쓰시다던시고오교오 가부시기 가이샤
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10HINORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H29/00Integrated devices, or assemblies of multiple devices, comprising at least one light-emitting semiconductor element covered by group H10H20/00
    • H10H29/10Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00
    • H10H29/14Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 comprising multiple light-emitting semiconductor components
    • H10H29/142Two-dimensional arrangements, e.g. asymmetric LED layout
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10HINORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80Constructional details
    • H10H20/85Packages
    • H10H20/851Wavelength conversion means
    • H10H20/8514Wavelength conversion means characterised by their shape, e.g. plate or foil
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10HINORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80Constructional details
    • H10H20/85Packages
    • H10H20/852Encapsulations
    • H10H20/854Encapsulations characterised by their material, e.g. epoxy or silicone resins

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  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

내용 없음.No content.

Description

발광표시장치(發光表示裝置)Light emitting display device

제1도는 평면적 구성도1 is a plan view

제2도는 그 요부의 단면도2 is a cross-sectional view of the main part

제3도는 동 요부의 구성체(構成體) 전개도3 is an exploded view of the structure of the yaw portion

제4도는 그 단위구성소자의 평면도4 is a plan view of the unit components

본 발명은 전자발광소자를 이용하여, 숫자와 같은 부호를 표시하는 장치에 관한 것이다.The present invention relates to an apparatus for displaying a sign such as a number using an electroluminescent element.

전자발광소자는, 통칭 LED로 불리우는 발광다이오드가 잘 알려져, 표시용 광원으로서 이용되고 있다.BACKGROUND ART Electroluminescent devices are well known as light emitting diodes, commonly called LEDs, and are used as light sources for displays.

그래서 이러한 발광다이오드는, 그 소재(素材)로 되는 Ⅲ-Ⅴ족(簇) 화합물 결정(結晶)의 물성(物性)에 의존하여, 거의가 적외(赤外) 또는 적색의 발광이다.Therefore, such light emitting diodes are almost infrared or red light emission depending on the physical properties of the group III-V compound crystals used as the raw material.

또, 상기 적외발광의 다이오드에 적외 가시변환(可視變換) 형광체를 씌워서, 녹색 등의 가시역(可視域) 발광을 실현시킨 것도 있다.In addition, an infrared visible conversion phosphor is placed on the infrared light emitting diode to realize visible light emission such as green.

본 발명은, 상기 적외발광다이오드와 적외가시변환 형광체와를 종합하여, 부호표시에 적합한 발광표시 장치를 제공하는 것으로서, 다음에 도면에 표시한 실시예와 같이 상세히 설명하면 다음과 같다.The present invention provides a light emitting display device suitable for symbol display by combining the infrared light emitting diode and the infrared visible conversion phosphor, which will be described in detail as in the following embodiment shown in the drawings.

제1도 및 제2도에 있어서, 합성수지 또는 세라믹(Ceramic)과 같은 절연체판(1)위에 고정된 금속판(2)은, 그 상면에 푸레스 가공 등에 의해 형성된 복수개(複數個)의 사다리꼴 내지는 3각형의 평면 형상으로 되는 요구(凹溝)(3)를 갖고, 깊이 0.2mm의 이 요구(3)의 내부에는 GaAs로 되어 있다.In FIG. 1 and FIG. 2, the metal plate 2 fixed on the insulator plate 1, such as a synthetic resin or ceramic, has several trapezoids or 3 formed in the upper surface by pressureless processing etc. It has the request | requirement 3 which becomes a square planar shape, and is made of GaAs in the inside of this request | requirement 3 of depth 0.2mm.

예를 들면 0.4mm×0.4mm×0.2mm의 적외발광다이오드(4)와, 적외가시변환 형광체를 매입(埋入)한 가시광방사체(可視光放射體)(5)와 에폭시수지, 폴리우레탄수지 혹은 실리콘수지와 같은 투광성(透光性)수지(6)에 의해서 매설(埋設)되어 있다.For example, an infrared light emitting diode 4 of 0.4 mm x 0.4 mm x 0.2 mm, a visible light emitter 5 having an infrared visible conversion phosphor embedded therein, an epoxy resin, and a polyurethane resin Or it is buried by the light transmissive resin 6 like silicone resin.

상기 가시광방사체(5)는, 예를 들면, LaFa3; Yb, Er, 혹은 YF3; Yb, Er 등의 녹색발광을 나타내는 적외가시변환 형광체를 투광성 수지 내에 매입시킨 것으로, 상기 적외발광다이오드(4)로부터의 적외방사광에 의해서 녹색으로 발광한다.The visible light emitter 5 is, for example, LaFa 3 ; Yb, Er, or YF 3 ; An infrared-visible fluorescent substance exhibiting green light emission such as Yb, Er, or the like is embedded in the translucent resin, and emits green light by infrared radiation from the infrared light emitting diode 4.

제3도는 이러한 실시예 장치의 구성전개도(展開圖)로서, 제법(製法) 공정으로 보면, 미리 소정치수로 가공된 봉상(棒狀)의 가시광방사체(5)를 금속판(2)의 요구(3)의 일단에 끼워 넣어 최후에 이를 타단의 발광다이오드(4)와 함께 투광성수지로 덮어서 굳히는 것이다.FIG. 3 is a diagram showing the construction of the apparatus of the embodiment. When viewed in the manufacturing process, the rod-shaped visible light emitter 5 which has been processed to a predetermined dimension in advance is required by the metal plate 2 (3). It is inserted into one end of the) and finally it is hardened by covering it with a translucent resin together with the light emitting diodes 4 of the other end.

상기의 가시광방사체(5)의 형상은 도시한 직방체(直方體)에 한하지 않고, 단면이 원형, 타원형 혹은 3각, 5각 및 6각 등의 다각형의 것, 또한 시이트(Sheet)형이나 대상(帶狀)의 것도 이용된다.The shape of the visible light emitter 5 is not limited to the rectangular parallelepiped shown in the figure, and the cross section is in the shape of a circle, an ellipse or a polygon such as a triangular, 5-angular, or hexagonal, and a sheet-type or object. (I) is also used.

또, 적외가시변환 형광체에는 상기의 녹색발광형 광체 외에, Yocl; Yb, Er, Y3, OCℓ7; Yb, Er등의 적색발광형 형체나, YF3; Yb, Tm과 같은 청색발광형광체 및 이들의 각 형광체를 적당한 비율로 혼합하여 황색 등의 중간색 발광을 나타내는 것이 이용된다.In addition, in addition to the green light-emitting photoconductor described above, the infrared visible fluorescent substance includes Yocl; Yb, Er, Y 3 , OCl 7 ; Red light-emitting bodies such as Yb and Er, and YF 3 ; Blue light-emitting phosphors such as Yb and Tm, and mixtures of the respective phosphors in an appropriate ratio are used to show intermediate light emission such as yellow.

또한, 이 실시예에서의 발광다이오드(4)는 한 쪽의 전극(7)을 도전성 접착제(도시 않함)을 거쳐서 금속판(2)에 접착시키고, 다른 쪽의 전극(8)을 금속 세선(細線)(9)을 거쳐서 절연판(1)위의 접속단자(10)에 접속하여, 이 양자 사이에 상기 다이오드(4)의 순방향전계(順方向電界)를 가하여 사용한다.Further, in this embodiment, the light emitting diode 4 adheres one electrode 7 to the metal plate 2 via a conductive adhesive (not shown), and the other electrode 8 is made of fine metal wires. It connects to the connection terminal 10 on the insulating plate 1 via (9), and uses the forward electric field of the said diode 4 between them.

또, 금속판(2)의 요구를 형성한 플라스틱 등의 절연판에 피착(被着) 형성된 금속막이라도 좋고, 혹은 제1도에 표시한 예로 보면, 단위 발광소자 구조를 제4도와 같은 단체(單

Figure kpo00001
)로 구성하여, 이를 "日"자형으로 산설(散設)할 수도 있다.In addition, a metal film deposited on an insulating plate such as plastic having formed a request for the metal plate 2 may be used, or in the example shown in FIG.
Figure kpo00001
), And it can be written in a Japanese style.

또한 도형에 관하여는, 상기 "日"자형 이외에, 다른 형상의 기초자화(基礎字畵)에 의해 산설(散設)할 수도 있다.In addition, the figure may be written by a basic magnetization of another shape, in addition to the above Japanese letter.

위와 같이 구성된 본 발명의 발광표시장치에 의하면, 7개의 발광다이오드 중에서 1개 또는 2개 이상을 선택적으로 통전(通電)하여 적외 발광시키면, 이들의 발광은 해당되는 발광다이오드에 밀접되는 투광성(透光性) 수지를 도광로(導光路)로 하여 각각 봉상(棒狀)이나 대상(帶狀)의 가시광방사체(可視光放射體)에서 소정의 가시광을 발하고, 이를 금속판 위에서 바라볼 때, 부호형(符號形)의 발광이 선명한 것을 알 수 있다.According to the light emitting display device of the present invention configured as described above, when one or two or more of the seven light emitting diodes are selectively energized and infrared light are emitted, these light emission is light-transmissive close to the corresponding light emitting diode. When a resin is used as a light guiding path to emit predetermined visible light from a rod-shaped object or a visible light emitter of an object, respectively, and is viewed on a metal plate, it is a code type. It can be seen that light emission is clear.

그러므로, 이 가시광방사부는 발광다이오드의 크기에 비하여 충분히 크고, 더욱이 대상(帶狀)의 방사면에 변환되는 것으로 된다.Therefore, this visible light emitting portion is sufficiently large as compared with the size of the light emitting diode, and is further converted to the radiation surface of the object.

또, 적외광은 외부공간에 누설되는 일없이, 투광성수지의 도광로 내에서 전부 반사하여 거의 가시발광형 광체에 흡수되어 가시광 변환되므로 고능률로 되는 이점이 있고, 더욱이, 전(全) 발광다이오드의 각 일방의 전극은 금속판에 공통 접속으로 집약되어 인출(引出)되어, 배선의 간소화가 이루어진다.In addition, the infrared light is reflected in the light guide path of the translucent resin without being leaked to the external space, and is absorbed by the almost visible light-emitting body, thereby converting the visible light, and thus, there is an advantage of high efficiency. The electrodes of each of the electrodes are concentrated and drawn out in a common connection to a metal plate, thereby simplifying the wiring.

그리고, 적외발광다이오드와 소정형상의 가시광방사체와를 투광성 수지의 도광로에서 결합한 구성은 간소하며 제조성도 매우 우수하고, 그 효과는 참으로 큰 것이다.In addition, the structure in which the infrared light emitting diode and the visible light emitter of a predetermined shape are combined in the light guiding path of the translucent resin is simple and the manufacturability is very excellent, and the effect is indeed great.

또한 "日"자형 등의 기초자화(基礎字畵)를 같은 투공(透孔)을 가진 광학마스크를 덮어서 사용할 때는 부호형 발방의 윤곽을 한층 명료하게 할 수 있는 것도 물론이다.In addition, when the basic magnetization such as a Japanese pattern is used by covering an optical mask having the same perforation, it is of course possible to make the outline of the sign-type foot more clear.

Claims (1)

본문에 상술하고 도시한 바와 같이 적외광을 발하는 전자발광소자(4)와 적외가시변환 형광체를 포함한 봉상(棒狀) 내지 대상(帶狀)의 가시광방사체(5)와를 투광성 수지(6) 내에 매설하고, 상기의 가시방사체로 자화체(字畵體)를 구성하는 것을 특징으로 하는 발광표시장치.As described above and shown in the text, the electroluminescent device 4 emitting infrared light and the rod-like to visible ray emitter 5 including the infrared visible conversion phosphor are included in the translucent resin 6. A light emitting display device which is buried and constitutes a magnetized body with the above-mentioned visible radiator.
KR7400710A 1974-01-04 1974-01-04 Solid state display apparatus Expired KR810001254B1 (en)

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KR7400710A KR810001254B1 (en) 1974-01-04 1974-01-04 Solid state display apparatus

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