JPH0830213A - Light emitting diode display device - Google Patents
Light emitting diode display deviceInfo
- Publication number
- JPH0830213A JPH0830213A JP6164964A JP16496494A JPH0830213A JP H0830213 A JPH0830213 A JP H0830213A JP 6164964 A JP6164964 A JP 6164964A JP 16496494 A JP16496494 A JP 16496494A JP H0830213 A JPH0830213 A JP H0830213A
- Authority
- JP
- Japan
- Prior art keywords
- emitting diode
- light emitting
- light
- display device
- chips
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2113/00—Combination of light sources
- F21Y2113/10—Combination of light sources of different colours
- F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
- F21Y2113/17—Combination of light sources of different colours comprising an assembly of point-like light sources forming a single encapsulated light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Led Device Packages (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は発光ダイオード表示装置
に関するものであり、例えばフルカラーディスプレイ，
情報板等の発光ダイオード表示装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting diode display device, such as a full color display,
The present invention relates to a light emitting diode display device such as an information board.
【０００２】[0002]
【従来の技術】図６は、従来より知られている２チップ
タイプの発光ダイオードランプ１０を示す縦断面図であ
る。同図に示すように、ファースト側リード４ｃの先端
に設けられているパラボラ部分３の内側の面上には、２
個の発光ダイオードチップＲ，Ｇが、所定の間隔をあけ
てダイボンディングされている。このパラボラ部分３を
介して、発光ダイオードチップＲ，Ｇとファースト側リ
ード４ｃとが電気的に接続されている。また、発光ダイ
オードチップＲ，Ｇは、それぞれセカンド側リード４
ａ，４ｂと金線５ａ，５ｂでワイヤボンディングされて
いる。この金線５ａ，５ｂを介して、発光ダイオードチ
ップＲ，Ｇとセカンド側リード４ａ，４ｂとが電気的に
接続されている。2. Description of the Related Art FIG. 6 is a longitudinal sectional view showing a conventionally known two-chip type light emitting diode lamp 10. As shown in the figure, the inner surface of the parabolic portion 3 provided at the tip of the first side lead 4c has 2
The light emitting diode chips R and G are die-bonded at a predetermined interval. The light emitting diode chips R and G and the first side lead 4c are electrically connected to each other through the parabolic portion 3. Further, the light emitting diode chips R and G are respectively provided with the second side lead 4
a, 4b and gold wires 5a, 5b are wire bonded. The light emitting diode chips R and G are electrically connected to the second side leads 4a and 4b through the gold wires 5a and 5b.
【０００３】そして、発光ダイオードチップＲ，Ｇ，パ
ラボラ部分３，リード４ａ，４ｂ及び金線５ａ，５ｂ
は、リード４ａ，４ｂ，４ｃの一部が後方側から突出す
るようにして、エポキシ樹脂成形体２中に封止されてい
る。突出したリード４ａ及び４ｂとリード４ｃとは、互
いに反対の極性となるように電源(不図示)と接続され
る。The light emitting diode chips R and G, the parabolic portion 3, the leads 4a and 4b and the gold wires 5a and 5b.
Is sealed in the epoxy resin molded body 2 such that some of the leads 4a, 4b, 4c project from the rear side. The protruding leads 4a and 4b and the lead 4c are connected to a power source (not shown) so as to have polarities opposite to each other.
【０００４】エポキシ樹脂成形体２の先端部分はレンズ
部分７を成しており、また、パラボラ部分３の内側の面
は反射面となっている。そして、このパラボラ部分３の
反射面とレンズ部分７とで、発光ダイオードチップＲ，
Ｇから発せられた光が、前方(図６に向かって上方向)に
導かれる。The tip portion of the epoxy resin molded body 2 constitutes a lens portion 7, and the inner surface of the parabolic portion 3 is a reflecting surface. The reflecting surface of the parabolic portion 3 and the lens portion 7 allow the light emitting diode chip R,
The light emitted from G is guided forward (upward in FIG. 6).
【０００５】発光ダイオードチップＲは赤色発光を行
い、発光ダイオードチップＧは緑色発光を行う。従っ
て、一方のみを発光させれば赤色又は緑色の表示を行う
ことができ、双方を同時に発光させれば橙色(混合色)の
表示を行うことができる。このような３通りの発光の切
換えは、ＩＣ(integrated circuit)等で行われる。The light emitting diode chip R emits red light, and the light emitting diode chip G emits green light. Therefore, red or green display can be performed by emitting light from only one, and orange (mixed color) display can be performed by emitting light from both at the same time. Such three types of switching of light emission are performed by an IC (integrated circuit) or the like.
【０００６】上記発光ダイオードランプ１０において、
発光ダイオードチップＲの指向特性ＬＲと、発光ダイオ
ードチップＧの指向特性ＬＧとは、図７に示すように一
致しない。これは、発光ダイオードチップＲ，Ｇがそれ
ぞれレンズ部分７(図６)の光軸ＡＸからずれた位置に配
されているためである。１パッケージ内に２以上の発光
ダイオードチップを備えた発光ダイオードランプにおい
ては、光軸上に２以上の発光ダイオードチップを配する
ことができないため、発光ダイオードランプは各発光ダ
イオードチップについて、その光軸ＡＸからのズレ方向
に沿って特有の指向特性を有することになる。従って、
発光ダイオードチップＲ，Ｇの双方を同時に発光させ、
その発光ダイオードランプ１０を矢印ｍ１方向(発光ダ
イオードチップＲ側)に見た場合には発光色は赤色の強
い橙色に見え、矢印ｍ２方向(発光ダイオードチップＧ
側)に見た場合には発光色は緑色の強い橙色に見えるこ
とになる。In the above light emitting diode lamp 10,
The directional characteristic LR of the light emitting diode chip R and the directional characteristic LG of the light emitting diode chip G do not match as shown in FIG. This is because the light emitting diode chips R and G are arranged at positions deviated from the optical axis AX of the lens portion 7 (FIG. 6), respectively. In a light emitting diode lamp having two or more light emitting diode chips in one package, it is not possible to arrange two or more light emitting diode chips on the optical axis. The directional characteristic is unique along the direction of deviation from AX. Therefore,
Both the light emitting diode chips R and G emit light at the same time,
When the light-emitting diode lamp 10 is viewed in the direction of the arrow m1 (on the side of the light-emitting diode chip R), the light emission color appears to be a strong orange color of red, and the direction of the arrow m2 (the light-emitting diode chip G).
When viewed from the side), the emission color appears to be a strong orange color with a green color.
【０００７】ところで、発光ダイオードランプ１０のよ
うに１パッケージ内に２以上の発光ダイオードチップを
備えた多色発光の発光ダイオードランプは、単体として
使用されるだけでなく、ドットマトリクス状に複数個配
列されることによって、発光ダイオード表示装置(例え
ば、フルカラーディスプレイ)としても使用される。そ
の場合、１チップタイプの発光ダイオードランプを集合
させ、ドットマトリクス状に複数個配列して成る発光ダ
イオード表示装置に比べて、単位面積当りの発光ダイオ
ードチップ密度が高いため、高輝度の発光ダイオード表
示装置となる。以下に、このような発光ダイオード表示
装置の従来例を説明する。By the way, a multicolor light emitting diode lamp having two or more light emitting diode chips in one package like the light emitting diode lamp 10 is not only used as a single body but also arranged in a dot matrix. Accordingly, it is also used as a light emitting diode display device (for example, a full color display). In that case, since the light-emitting diode chip density per unit area is higher than that of a light-emitting diode display device in which one-chip type light-emitting diode lamps are assembled and arranged in a dot matrix, a high-luminance light-emitting diode display is provided. It becomes a device. A conventional example of such a light emitting diode display device will be described below.
【０００８】図８に示す第１の従来例は、２チップタイ
プの発光ダイオードランプ１０を基板７にドットマトリ
クス状に配置して成る発光ダイオード表示装置である。
横方向(即ち、Ｘ軸に沿った方向)には、内蔵する発光ダ
イオードチップＲ，Ｇの隣接する発光色が異なるよう
に、各発光ダイオードランプ１０の向きが揃った配列と
なっている。一方、縦方向(即ち、Ｘ軸に対して垂直な
Ｙ軸に沿った方向)には、隣接する発光色が同じになる
ように、各発光ダイオードランプ１０の向きが揃った配
列となっている。A first conventional example shown in FIG. 8 is a light emitting diode display device in which two-chip type light emitting diode lamps 10 are arranged on a substrate 7 in a dot matrix form.
In the lateral direction (that is, the direction along the X axis), the light emitting diode lamps 10 are arranged so that the adjacent light emitting diode chips R and G have different emission colors. On the other hand, in the vertical direction (that is, in the direction along the Y-axis perpendicular to the X-axis), the respective light-emitting diode lamps 10 are arranged so that the adjacent emission colors are the same. .
【０００９】図９に示す第２の従来例も、２チップタイ
プの発光ダイオードランプ１０を基板７にドットマトリ
クス状に配置して成る発光ダイオード表示装置である。
横方向(即ち、Ｘ軸に沿った方向)のラインを成す各発光
ダイオードランプ１０は、縦方向(即ち、Ｘ軸に対して
垂直なＹ軸に沿った方向)に１８０°ずつ回転角度が変
位した状態に配列されている。従って、各発光ダイオー
ドランプ１０は、縦・横方向共に、内蔵する発光ダイオ
ードチップＲ，Ｇの隣接する発光色が異なっている。The second conventional example shown in FIG. 9 is also a light emitting diode display device in which the two-chip type light emitting diode lamps 10 are arranged on the substrate 7 in a dot matrix form.
Each of the light emitting diode lamps 10 forming a line in the horizontal direction (that is, the direction along the X-axis) has a rotation angle displaced by 180 ° in the vertical direction (that is, the direction along the Y-axis perpendicular to the X-axis). It is arranged in a closed state. Therefore, in each of the light emitting diode lamps 10, adjacent light emitting colors of the light emitting diode chips R and G incorporated therein are different in the vertical and horizontal directions.
【００１０】第１，第２の従来例はいずれも、発光ダイ
オードチップＲ，Ｇの光軸ＡＸからのズレ方向がＸ軸方
向に一致するように全発光ダイオードランプ１０が配列
されている。そのため、発光ダイオード表示装置全体に
ついて、発光ダイオードチップＲの指向特性ＬＲ(図７)
と発光ダイオードチップＧの指向特性ＬＧ(図７)とは、
縦方向には一致しても横方向には一致しないことにな
る。In each of the first and second conventional examples, all the light emitting diode lamps 10 are arranged so that the deviation directions of the light emitting diode chips R and G from the optical axis AX coincide with the X axis direction. Therefore, for the entire light emitting diode display device, the directional characteristics LR of the light emitting diode chip R (FIG. 7)
And the directional characteristic LG (FIG. 7) of the light emitting diode chip G are
Even if they match in the vertical direction, they do not match in the horizontal direction.
【００１１】従って、第１の従来例(図８)では、２つの
発光ダイオードチップＲ，Ｇを同時発光させた場合、表
示装置をＸ軸方向に沿って左側から見たときと右側から
見たときとで、発光色の赤色と緑色との強さのバランス
が、全発光ダイオードランプ１０について異なってしま
う。その結果、表示装置をＸ軸方向に沿って左側から見
ると、全発光ダイオードランプの発光色が赤色に強く見
えてしまい、逆に、右側から見ると、全発光ダイオード
ランプの発光色が緑色に強く見えてしまう。Therefore, in the first conventional example (FIG. 8), when the two light emitting diode chips R and G are simultaneously made to emit light, the display device is viewed from the left side and the right side along the X-axis direction. The balance of the intensities of the red and green emission colors is different for all the light emitting diode lamps 10. As a result, when the display device is viewed from the left side along the X-axis direction, the light emission color of all the light emitting diode lamps looks strongly red, and when viewed from the right side, the light emission color of all the light emitting diode lamps becomes green. It looks strong.
【００１２】一方、第２の従来例(図９)では、２つの発
光ダイオードチップＲ，Ｇを同時発光させた場合、表示
装置をＸ軸方向に沿って左側から見たときと右側から見
たときとで、発光色の赤色と緑色との強さのバランス
が、Ｘ軸方向の１ライン単位で異なってしまう。その結
果、表示装置をＸ軸方向に沿って左側から見た場合に発
光色が赤色に強く見えたＸ軸方向のラインは、右側から
見た場合には発光色が緑色に強く見えることになる。On the other hand, in the second conventional example (FIG. 9), when the two light emitting diode chips R and G are made to emit light at the same time, the display device is viewed from the left side and the right side along the X-axis direction. At that time, the balance of the intensities of the red and green emission colors differs for each line in the X-axis direction. As a result, when the display device is viewed from the left side along the X-axis direction, the line of the X-axis direction, in which the emission color looks strongly red, has the emission color strongly looks in green when viewed from the right side. .
【００１３】図１０に示す第３の従来例は、３チップタ
イプの発光ダイオードランプ２０を基板７にドットマト
リクス状に配置して成る発光ダイオード表示装置であ
る。発光ダイオードランプ２０には、光軸ＡＸ(図６)を
中心とした１２０°の回転角度間隔で、赤色発光を行う
発光ダイオードチップＲ，緑色発光を行う発光ダイオー
ドチップＧ及び青色発光を行う発光ダイオードチップＢ
が配置されている。そのため、発光ダイオードランプ２
０は、各発光ダイオードチップＲ，Ｇ，Ｂについて、そ
の光軸ＡＸからのズレ方向に沿って特有の指向特性を有
することになる。一方、この発光ダイオードランプ２０
は、全て縦・横同じ向きに揃って基板７上に配列されて
いるため、発光ダイオード表示装置全体について、発光
ダイオードチップＲ，Ｇ，Ｂの指向特性が全て一致する
ことはない。従って、３つの発光ダイオードチップＲ，
Ｇ，Ｂを同時発光させたとき、表示装置を見る方向によ
って全発光ダイオードランプ２０の発光色が異なって見
えてしまうことになる。The third conventional example shown in FIG. 10 is a light emitting diode display device in which three chip type light emitting diode lamps 20 are arranged in a dot matrix on the substrate 7. The light emitting diode lamp 20 includes a light emitting diode chip R that emits red light, a light emitting diode chip G that emits green light, and a light emitting diode that emits blue light at a rotation angle interval of 120 ° about the optical axis AX (FIG. 6). Chip B
Is arranged. Therefore, the light emitting diode lamp 2
0 has a specific directional characteristic of each of the light emitting diode chips R, G and B along the direction of deviation from the optical axis AX. On the other hand, this light emitting diode lamp 20
Are all arranged on the substrate 7 in the same vertical and horizontal directions, so that the directional characteristics of the light emitting diode chips R, G, B do not all match in the entire light emitting diode display device. Therefore, three light emitting diode chips R,
When G and B are simultaneously emitted, the emission colors of all the light emitting diode lamps 20 will appear different depending on the viewing direction of the display device.
【００１４】以上のように１パッケージ内に２以上の発
光ダイオードチップが内蔵された多色発光の発光ダイオ
ードランプは、光軸からの各発光ダイオードチップ位置
のズレによって各発光ダイオードチップの指向特性が一
致しないため、ドットマトリクス状に配列された発光ダ
イオードランプを同時発光させたとき、発光ダイオード
表示装置を見る方向によって発光色が異なるという問題
が生じる。As described above, in the multi-color light emitting diode lamp in which two or more light emitting diode chips are built in one package, the directional characteristics of each light emitting diode chip are different due to the displacement of each light emitting diode chip position from the optical axis. Since they do not match, when the light emitting diode lamps arranged in a dot matrix are simultaneously made to emit light, there arises a problem that the emission color differs depending on the viewing direction of the light emitting diode display device.
【００１５】この問題を発光ダイオードランプ単体で解
決するものとして、エポキシ樹脂成形体中に拡散材を入
れる方法が知られている。また、この問題を発光ダイオ
ードランプの配列の仕方で解決するものとして、２色発
光ダイオードチップの並ぶ方向には同一色が隣接し、２
色発光ダイオードチップの並ぶ方向と直交する方向には
交互に異なる発光色がくるように、各２色発光ダイオー
ドランプを配列した発光ダイオード表示板が提案されて
いる(実公平３−２６５３６号)。As a method for solving this problem with a light emitting diode lamp alone, a method is known in which a diffusing material is put in an epoxy resin molding. In order to solve this problem by arranging the light emitting diode lamps, the same color is adjacent in the direction in which the two color light emitting diode chips are arranged.
A light-emitting diode display panel in which two-color light-emitting diode lamps are arranged so that different emission colors are alternately provided in a direction orthogonal to a direction in which color light-emitting diode chips are arranged has been proposed (Japanese Utility Model Publication No. 3-26536).
【００１６】実公平３−２６５３６号で提案されている
従来例を、図１１に基づいて説明する。この従来例は、
２チップタイプの発光ダイオードランプ１０をドットマ
トリクス状に基板７に配置して成る発光ダイオード表示
装置である。横方向(即ち、Ｘ軸に沿った方向)には、内
蔵する発光ダイオードチップＲ，Ｇの隣接する発光色が
同じになるように、各発光ダイオードランプ１０は１８
０°ずつ回転角度が変位した配列となっている。一方、
縦方向(即ち、Ｘ軸に対して垂直なＹ軸に沿った方向)に
は、隣接する発光色が異なるように、各発光ダイオード
ランプ１０は１８０°ずつ回転角度が変位した状態に配
置されている。A conventional example proposed in Japanese Utility Model Publication No. 3-26536 will be described with reference to FIG. This conventional example
This is a light emitting diode display device in which two-chip type light emitting diode lamps 10 are arranged on a substrate 7 in a dot matrix form. In the lateral direction (that is, the direction along the X axis), each LED lamp 10 has 18 LEDs so that the adjacent LED chips R and G have the same emission color.
The arrangement is such that the rotation angle is displaced by 0 °. on the other hand,
In the vertical direction (that is, the direction along the Y-axis perpendicular to the X-axis), the light-emitting diode lamps 10 are arranged with their rotation angles displaced by 180 ° so that adjacent emission colors are different. There is.
【００１７】[0017]
【発明が解決しようとする課題】エポキシ樹脂成形体中
に拡散材を入れる方法によれば、拡散剤によって各発光
ダイオードランプの光度が低下してしまうため、輝度の
低い表示板になってしまうという問題がある。一方、実
公平３−２６５３６号で提案されている従来例によれ
ば、単色発光で縦方向にスクロール表示を行うと、横方
向の１ライン毎に各発光ダイオードチップＲ，Ｇの指向
特性が１８０°変化するため、Ｘ軸方向に沿って左又は
右方向から発光ダイオード表示装置を見ると、表示が左
右に揺れて見えるという問題が生じる。According to the method of incorporating the diffusing material in the epoxy resin molding, the diffusing agent reduces the luminous intensity of each light emitting diode lamp, resulting in a display panel with low brightness. There's a problem. On the other hand, according to the conventional example proposed in Japanese Utility Model Publication No. 3-26536, when scroll display is performed in the vertical direction by monochromatic light emission, the directional characteristic of each light emitting diode chip R, G is 180 for each line in the horizontal direction. When the light emitting diode display device is viewed from the left or right along the X-axis direction, the display appears to sway left and right.
【００１８】本発明は上記のような点に鑑みてなされた
ものであって、同時発光時、見る方向によって発光色が
異なったり、単色発光時、スクロール表示に揺れが生じ
たりすることがない高輝度の発光ダイオード表示装置を
提供することを目的とする。The present invention has been made in view of the above points, and does not cause different emission colors depending on viewing directions during simultaneous light emission, and no fluctuation in scroll display during single color emission. An object of the present invention is to provide a light emitting diode display device with high brightness.
【００１９】[0019]
【課題を解決するための手段】上記目的を達成するた
め、第１の発明に係る発光ダイオード表示装置は、発光
色の異なる２種の発光ダイオードチップが所定の配置で
内蔵された発光ダイオード素子を、ドットマトリクス状
に複数個配列して成る発光ダイオード表示装置であっ
て、前記発光ダイオード素子は、隣接する他の発光ダイ
オード素子に対して、内蔵する発光ダイオードチップが
共に１８０°未満の回転角度で変位した状態に配置され
ていることを特徴とする。In order to achieve the above object, a light emitting diode display device according to a first aspect of the present invention includes a light emitting diode element in which two types of light emitting diode chips having different emission colors are built in in a predetermined arrangement. A light emitting diode display device in which a plurality of light emitting diode elements are arranged in a dot matrix form, wherein the light emitting diode element has a built-in light emitting diode chip at a rotation angle of less than 180 ° with respect to another adjacent light emitting diode element. It is characterized in that it is arranged in a displaced state.
【００２０】また、第２の発明に係る発光ダイオード表
示装置は、発光色の異なる３種の発光ダイオードチップ
が所定の配置で内蔵された発光ダイオード素子を、ドッ
トマトリクス状に複数個配列して成る発光ダイオード表
示装置であって、前記発光ダイオード素子は、隣接する
他の発光ダイオード素子に対して、内蔵する発光ダイオ
ードチップが共に１８０°以下の回転角度で変位した状
態に配置されていることを特徴とする。Further, the light emitting diode display device according to the second invention is formed by arranging a plurality of light emitting diode elements, each of which has three kinds of light emitting diode chips of different luminescent colors built therein in a predetermined arrangement, in a dot matrix form. A light emitting diode display device, wherein the light emitting diode element is arranged such that the light emitting diode chips incorporated therein are both displaced by a rotation angle of 180 ° or less with respect to another adjacent light emitting diode element. And
【００２１】[0021]
【作用】第１の発明に係る発光ダイオード表示装置の構
成によると、隣接する発光ダイオード素子同士は、発光
ダイオードチップが共に１８０°未満の回転角度で変位
した位置関係にあるため、２種の発光ダイオードチップ
を同時発光させたとき、いずれの方向から発光ダイオー
ド表示装置を見た場合でも、どの発光ダイオード素子に
ついても近傍に存在する発光ダイオード素子が、特定の
発光色に対する残りの発光色の指向特性をカバーする。
その結果、見栄えは位置が離れるに従って徐々に変化し
て、発光ダイオード表示装置を見る方向によって２種の
発光色のバランスが異なって見えることはなくなる。ま
た、回転角度の変位量に対応して各発光色の指向特性の
変化量も小さいものとなる。According to the structure of the light emitting diode display device of the first aspect of the present invention, since the light emitting diode chips adjacent to each other are in a positional relationship in which the light emitting diode chips are both displaced by a rotation angle of less than 180 °, two types of light emission are emitted. When the LED chips are made to emit light at the same time, no matter which direction the light emitting diode display device is viewed from, the light emitting diode elements existing in the vicinity of any of the light emitting diode elements have directivity characteristics of the remaining emission color with respect to a specific emission color. To cover.
As a result, the appearance gradually changes as the positions are separated, and the balance of the two emission colors does not appear different depending on the viewing direction of the light emitting diode display device. Also, the amount of change in the directional characteristics of each emission color is small corresponding to the amount of displacement of the rotation angle.
【００２２】第２の発明に係る発光ダイオード表示装置
の構成によると、隣接する発光ダイオード素子同士は、
発光ダイオードチップが共に１８０°以下の回転角度で
変位した位置関係にあるため、３種又は２種の発光ダイ
オードチップを同時発光させたとき、いずれの方向から
発光ダイオード表示装置を見た場合でも、どの発光ダイ
オード素子についても近傍に存在する発光ダイオード素
子が、特定の発光色に対する残りの発光色の指向特性を
カバーする。その結果、見栄えは位置が離れるに従って
徐々に変化して、発光ダイオード表示装置を見る方向に
よって３種又は２種の発光色のバランスが異なって見え
ることはなくなる。また、回転角度の変位によって各発
光色の指向特性を１８０°まで変化させた場合でも発光
色は３色あるため、各発光色の指向特性間の間隔は狭い
ものとなる。According to the structure of the light emitting diode display device of the second invention, the adjacent light emitting diode elements are
Since the light emitting diode chips are both displaced by a rotation angle of 180 ° or less, when the light emitting diode display device is viewed from any direction when three or two light emitting diode chips are made to emit light at the same time, A light emitting diode element existing in the vicinity of any of the light emitting diode elements covers the directional characteristic of the remaining light emitting color with respect to a specific light emitting color. As a result, the appearance gradually changes as the position moves away, and the balance of three or two emission colors does not appear different depending on the viewing direction of the light emitting diode display device. Further, even when the directional characteristics of each luminescent color are changed to 180 ° by the displacement of the rotation angle, there are three luminescent colors, so the interval between the directional characteristics of each luminescent color becomes narrow.
【００２３】[0023]
【実施例】以下、本発明を実施した発光ダイオード表示
装置を図面に基づいて説明する。図１〜図５に、それぞ
れ第１〜第５実施例における発光ダイオードチップＲ，
Ｇ又はＲ，Ｇ，Ｂの配列の一部を示すが、各実施例は全
体として１６×１６，６×６等のドットマトリクス配列
の発光ダイオード表示装置を構成している。なお、先に
説明した従来例(図６〜図１１)等と同一部分・相当部分
には、同一の符号を付して詳しい説明を省略する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A light emitting diode display device embodying the present invention will be described below with reference to the drawings. 1 to 5 show light emitting diode chips R,
Although a part of the array of G or R, G, B is shown, each embodiment constitutes a light emitting diode display device of a dot matrix array of 16 × 16, 6 × 6 etc. as a whole. The same or corresponding parts as those of the conventional example (FIGS. 6 to 11) described above are designated by the same reference numerals, and detailed description thereof will be omitted.
【００２４】第１実施例(図１)は、発光色の異なる２個
の発光ダイオードチップＲ，Ｇが所定の配置で内蔵され
た発光ダイオードランプ１０を、基板７に対してドット
マトリクス状に複数個配列して成る発光ダイオード表示
装置であって、発光ダイオードランプ１０は、図１中の
左・上側で隣接する他の発光ダイオードランプ１０に対
して、内蔵する発光ダイオードチップＲ，Ｇが共に９０
°の回転角度で左回りに変位した状態に配置された構成
となっている。In the first embodiment (FIG. 1), a plurality of light emitting diode lamps 10 in which two light emitting diode chips R and G having different emission colors are incorporated in a predetermined arrangement are arranged in a dot matrix on a substrate 7. In a light emitting diode display device formed by arranging the light emitting diode lamps, the light emitting diode lamp 10 has 90 light emitting diode chips R and G incorporated therein with respect to another light emitting diode lamp 10 adjacent on the left and upper sides in FIG.
It is arranged so that it is displaced counterclockwise at a rotation angle of °.
【００２５】第２実施例(図２)は、発光色の異なる２個
の発光ダイオードチップＲ，Ｇが所定の配置で内蔵され
た発光ダイオードランプ１０を、基板７に対してドット
マトリクス状に複数個配列して成る発光ダイオード表示
装置であって、発光ダイオードランプ１０は、図２中の
左・上側で隣接する他の発光ダイオードランプ１０に対
して、内蔵する発光ダイオードチップＲ，Ｇが共に１２
０°の回転角度で左回りに変位した状態に配置された構
成となっている。In the second embodiment (FIG. 2), a plurality of light emitting diode lamps 10 in each of which two light emitting diode chips R and G having different light emitting colors are incorporated in a predetermined arrangement are arranged in a dot matrix on a substrate 7. In a light-emitting diode display device formed by arranging the light-emitting diode lamps, the light-emitting diode lamp 10 has 12 built-in light-emitting diode chips R and G with respect to another light-emitting diode lamp 10 adjacent on the left and upper sides in FIG.
It is arranged so as to be displaced counterclockwise at a rotation angle of 0 °.
【００２６】第１，第２実施例に係る発光ダイオード表
示装置の構成によると、隣接する発光ダイオードランプ
１０同士は、上記のように発光ダイオードチップＲ，Ｇ
が共に１８０°未満の回転角度で変位した位置関係にあ
るため、２種の発光ダイオードチップＲ，Ｇを同時発光
させたとき、いずれの方向から発光ダイオード表示装置
を見た場合でも、どの発光ダイオードランプ１０につい
ても近傍に存在する発光ダイオードランプ１０が、特定
の発光色に対する残りの発光色の指向特性(例えば、赤
色に対する緑色の指向特性)をカバーする。その結果、
見栄えは位置が離れるに従って徐々に変化して、発光ダ
イオード表示装置を見る方向によって２種の発光色のバ
ランスが異なって見えることはなくなる。従って、同時
発光時、発光ダイオード表示装置を見る方向によって発
光色が異なることがないという効果が得られる。According to the structure of the light emitting diode display device according to the first and second embodiments, the light emitting diode lamps 10 adjacent to each other have the light emitting diode chips R and G as described above.
Both have a positional relationship of being displaced at a rotation angle of less than 180 °, and when the two types of light emitting diode chips R and G are made to emit light at the same time, whichever light emitting diode display device is viewed from which direction As for the lamp 10, the light emitting diode lamp 10 existing in the vicinity also covers the directional characteristics of the remaining luminescent colors with respect to a specific luminescent color (for example, the directional characteristic of green with respect to red). as a result,
The appearance gradually changes as the positions are separated, and the balance of the two emission colors does not appear different depending on the viewing direction of the light emitting diode display device. Therefore, at the time of simultaneous light emission, it is possible to obtain the effect that the emission color does not change depending on the viewing direction of the light emitting diode display device.
【００２７】また、９０°，１２０°という小さな回転
角度での変位であるため、これに対応して各発光色の指
向特性の変化量も小さいものとなる。従って、単色発光
時、発光ダイオードチップＲ，Ｇの単色発光時、スクロ
ール表示に揺れが生じたりすることがないという効果が
得られる。Further, since the displacement is at a small rotation angle of 90 ° or 120 °, the amount of change in the directional characteristics of each emission color is correspondingly small. Therefore, when monochromatic light is emitted, or when the light emitting diode chips R and G emit monochromatic light, the scroll display does not fluctuate.
【００２８】以上、図１，図２中の左・上側で隣接する
発光ダイオードランプ１０について、９０°，１２０°
の回転角度で左回りに変位させる、２チップタイプの発
光ダイオードランプ１０を用いた発光ダイオード表示装
置の実施例を挙げたが、これに限らず、回転角度は１８
０°未満(例えば、３０°，６０°)で左又は右回りのい
ずれに変位させるものであってもよい。As described above, the light emitting diode lamps 10 adjacent to each other on the left and upper sides in FIGS. 1 and 2 are 90 ° and 120 °.
Although an example of a light emitting diode display device using a two-chip type light emitting diode lamp 10 that is displaced counterclockwise at a rotation angle of 18 is given, the rotation angle is not limited to this, and the rotation angle is 18
It may be displaced to the left or right by less than 0 ° (for example, 30 °, 60 °).
【００２９】第３実施例(図３)は、発光色の異なる３個
の発光ダイオードチップＲ，Ｇ，Ｂが所定の配置で内蔵
された発光ダイオードランプ２０を、基板７に対してド
ットマトリクス状に複数個配列して成る発光ダイオード
表示装置であって、発光ダイオードランプ２０は、図３
中の左・上側で隣接する他の発光ダイオードランプ２０
に対して、内蔵する発光ダイオードチップＲ，Ｇ，Ｂが
共に９０°の回転角度で左回りに変位した状態に配置さ
れた構成となっている。In the third embodiment (FIG. 3), a light emitting diode lamp 20 in which three light emitting diode chips R, G, B having different light emitting colors are incorporated in a predetermined arrangement is mounted on a substrate 7 in a dot matrix pattern. 3 is a light-emitting diode display device having a plurality of light-emitting diode lamps, each of which has a structure shown in FIG.
Other light emitting diode lamps 20 that are adjacent on the left and upper sides of the inside
On the other hand, the built-in light emitting diode chips R, G, and B are arranged in a state of being displaced counterclockwise at a rotation angle of 90 °.
【００３０】第４実施例(図４)は、発光色の異なる３個
の発光ダイオードチップＲ，Ｇ，Ｂが所定の配置で内蔵
された発光ダイオードランプ２０を、基板７に対してド
ットマトリクス状に複数個配列して成る発光ダイオード
表示装置であって、発光ダイオードランプ２０は、図４
中の左・上側で隣接する他の発光ダイオードランプ２０
に対して、内蔵する発光ダイオードチップＲ，Ｇ，Ｂが
共に１２０°の回転角度で左回りに変位した状態に配置
された構成となっている。In the fourth embodiment (FIG. 4), a light emitting diode lamp 20 in which three light emitting diode chips R, G, B having different light emitting colors are incorporated in a predetermined arrangement is mounted on a substrate 7 in a dot matrix form. 4 is a light emitting diode display device having a plurality of light emitting diode lamps, and
Other light emitting diode lamps 20 that are adjacent on the left and upper sides of the inside
On the other hand, the built-in light emitting diode chips R, G, and B are arranged in a state of being displaced counterclockwise at a rotation angle of 120 °.
【００３１】第５実施例(図５)は、発光色の異なる３個
の発光ダイオードチップＲ，Ｇ，Ｂが所定の配置で内蔵
された発光ダイオードランプ２０を、基板７に対してド
ットマトリクス状に複数個配列して成る発光ダイオード
表示装置であって、発光ダイオードランプ２０は、図５
中の左・上側で隣接する他の発光ダイオードランプ２０
に対して、内蔵する発光ダイオードチップＲ，Ｇ，Ｂが
共に１８０°の回転角度で左回りに変位した状態に配置
された構成となっている。In the fifth embodiment (FIG. 5), a light emitting diode lamp 20 in which three light emitting diode chips R, G, B having different light emitting colors are incorporated in a predetermined arrangement is mounted on a substrate 7 in a dot matrix form. 5 is a light emitting diode display device in which a plurality of light emitting diode lamps are arranged in FIG.
Other light emitting diode lamps 20 that are adjacent on the left and upper sides of the inside
On the other hand, the built-in light emitting diode chips R, G, and B are arranged in a state of being displaced counterclockwise at a rotation angle of 180 °.
【００３２】第３〜第５実施例に係る発光ダイオード表
示装置の構成によると、隣接する発光ダイオードランプ
２０同士は、上記のように発光ダイオードチップＲ，
Ｇ，Ｂが共に１８０°以下の回転角度で変位した位置関
係にあるため、３種又は２種の発光ダイオードチップ
Ｒ，Ｇ及びＢ；Ｒ及びＧ；Ｒ及びＢ；Ｇ及びＢを同時発
光させたとき、いずれの方向から発光ダイオード表示装
置を見た場合でも、どの発光ダイオードランプ２０につ
いても近傍に存在する発光ダイオードランプ２０が、特
定の発光色に対する残りの発光色の指向特性(例えば、
赤色に対する緑色及び青色の指向特性)をカバーする。
その結果、見栄えは位置が離れるに従って徐々に変化し
て、発光ダイオード表示装置を見る方向によって３種又
は２種の発光色のバランスが異なって見えることはなく
なる。従って、同時発光時、発光ダイオード表示装置を
見る方向によって発光色が異なることがないという効果
が得られる。According to the structure of the light emitting diode display device according to the third to fifth embodiments, the adjacent light emitting diode lamps 20 are connected to each other as described above.
Since G and B both have a positional relationship of being displaced at a rotation angle of 180 ° or less, three or two light emitting diode chips R, G and B; R and G; R and B; At this time, no matter which direction the light emitting diode display device is viewed from, the light emitting diode lamps 20 existing in the vicinity of any of the light emitting diode lamps 20 have directional characteristics of the remaining light emission color with respect to a specific light emission color (for example,
Directional characteristics of green and blue with respect to red) are covered.
As a result, the appearance gradually changes as the position moves away, and the balance of three or two emission colors does not appear different depending on the viewing direction of the light emitting diode display device. Therefore, at the time of simultaneous light emission, it is possible to obtain the effect that the emission color does not change depending on the viewing direction of the light emitting diode display device.
【００３３】１８０°以下の回転角度での変位であるた
め、第１，第２実施例に係る発光ダイオード表示装置と
同様、発光ダイオードチップＲ，Ｇ，Ｂの単色又は２色
発光時、スクロール表示に揺れが生じたりすることがな
いという効果が得られる。しかも、その変位によって各
発光色の指向特性を１８０°まで変化させた場合(図５)
でも、発光色は３色あるため、各発光色の指向特性間の
間隔は狭いものとなる。従って、残りの２色の発光によ
って指向特性の変化が緩和され、スクロール表示の揺れ
は効果的に抑えられる。Since the displacement is at a rotation angle of 180 ° or less, the scroll display is performed when the light emitting diode chips R, G, B emit light of a single color or two colors, as in the light emitting diode display devices according to the first and second embodiments. It is possible to obtain the effect that there is no shaking. Moreover, when the directional characteristic of each emission color is changed by 180 ° due to the displacement (Fig. 5)
However, since there are three emission colors, the interval between the directional characteristics of each emission color is narrow. Therefore, the changes in the directional characteristics are alleviated by the remaining two colors of light emission, and the fluctuation of the scroll display is effectively suppressed.
【００３４】以上、図３〜図５中の左・上側で隣接する
発光ダイオードランプ２０に対して、９０°，１２０
°，１８０°の回転角度で左回りに変位させる、３チッ
プタイプの発光ダイオードランプ２０を用いた発光ダイ
オード表示装置の実施例を挙げたが、これに限らず、回
転角度は１８０°以下(例えば、３０°，６０°)で左又
は右回りのいずれに変位させるものであってもよい。As described above, the light emitting diode lamps 20 adjacent to each other on the left and upper sides in FIGS.
Although an example of a light emitting diode display device using a 3-chip type light emitting diode lamp 20 which is displaced counterclockwise at a rotation angle of 180 ° or 180 ° has been given, the rotation angle is not limited to 180 ° (for example, 180 ° or less). , 30 °, 60 °).
【００３５】上記第１〜第５実施例に係る発光ダイオー
ド表示装置によれば、発光色の異なる２個又は３個の発
光ダイオードチップＲ，Ｇ又はＲ，Ｇ，Ｂが所定の配置
で内蔵された発光ダイオードランプ１０，２０をドット
マトリクス状に複数個配列した構成となっているため、
１チップタイプの発光ダイオードランプをドットマトリ
クス状に複数個配列して成る発光ダイオード表示装置よ
りも高輝度である。光度の低い発光ダイオードチップを
その１種として使用するとき、光度のバランスをとるた
めに、ある種の発光ダイオードチップを複数個搭載する
ことがあるが、その場合でも同様である。また、拡散剤
で指向特性を変える必要がないため、高輝度化が阻害さ
れることもない。According to the light emitting diode display devices of the first to fifth embodiments, two or three light emitting diode chips R, G or R, G, B having different emission colors are built in in a predetermined arrangement. Since a plurality of light emitting diode lamps 10 and 20 are arranged in a dot matrix,
The brightness is higher than that of a light emitting diode display device in which a plurality of 1-chip type light emitting diode lamps are arranged in a dot matrix. When a light emitting diode chip with low luminous intensity is used as one type, a plurality of light emitting diode chips of a certain type may be mounted in order to balance the luminous intensity, but this is also the case. Further, since it is not necessary to change the directional characteristics with the diffusing agent, the high brightness is not hindered.
【００３６】なお、発光色の異なる２種の発光ダイオー
ドチップＲ，Ｇ又は３種の発光ダイオードチップＲ，
Ｇ，Ｂが所定の配置で内蔵された発光ダイオード素子と
しては、発光ダイオードランプ１０，２０のように個別
に樹脂成形体中に封止されたもの(図６)に限られない。
例えば、２種又は３種の発光ダイオードチップが組を成
して直接基板７上にマウントされた構造も、発光ダイオ
ード素子に含まれるものとする。Two types of light emitting diode chips R and G having different emission colors or three types of light emitting diode chips R and G
The light-emitting diode element in which G and B are incorporated in a predetermined arrangement is not limited to the light-emitting diode lamps 10 and 20, which are individually sealed in a resin molding (FIG. 6).
For example, a structure in which two or three types of light emitting diode chips form a set and are directly mounted on the substrate 7 is also included in the light emitting diode element.
【００３７】[0037]
【発明の効果】以上説明した通り第１，第２の発明に係
る発光ダイオード表示装置によれば、発光色の異なる２
種又は３種の発光ダイオードチップが所定の配置で内蔵
された発光ダイオード素子をドットマトリクス状に複数
個配列した構成となっているため、１チップタイプの発
光ダイオード素子をドットマトリクス状に複数個配列し
て成る発光ダイオード表示装置よりも高輝度である。ま
た、拡散剤で指向特性を変える必要がないため、高輝度
化が阻害されることもない。As described above, according to the light emitting diode display device according to the first and second inventions, the light emitting diode display devices having different emission colors are used.
A plurality of 1-chip type light emitting diode elements are arranged in a dot matrix because a plurality of light emitting diode elements having a predetermined type or three kinds of light emitting diode chips are arranged in a dot matrix are arranged. The brightness is higher than that of a light emitting diode display device formed by Further, since it is not necessary to change the directional characteristics with the diffusing agent, the high brightness is not hindered.
【００３８】また、第１の発明に係る発光ダイオード表
示装置によれば、発光ダイオード素子は、隣接する他の
発光ダイオード素子に対して、内蔵する発光ダイオード
チップが共に１８０°未満の回転角度で変位した状態に
配置されているため、２種の発光ダイオードチップを同
時発光させたとき、発光ダイオード表示装置を見る方向
によって発光色が異なることがないという効果が得られ
る。また、１８０°未満の小さな回転角度での変位であ
るため、これに対応して各発光色の指向特性の変化量も
小さいものとなる。従って、発光ダイオードチップの単
色発光時、スクロール表示に揺れが生じたりすることが
ないという効果が得られる。Further, according to the light emitting diode display device of the first aspect of the invention, the light emitting diode element is displaced with respect to another adjacent light emitting diode element at a rotation angle of less than 180 °. Since the two light emitting diode chips are made to emit light at the same time, the effect that the emission color does not change depending on the viewing direction of the light emitting diode display device is obtained. Further, since the displacement is at a small rotation angle of less than 180 °, the amount of change in the directional characteristic of each emission color is correspondingly small. Therefore, when the light emitting diode chip emits a single color, the scroll display does not shake.
【００３９】第２の発明に係る発光ダイオード表示装置
によれば、発光ダイオード素子は、隣接する他の発光ダ
イオード素子に対して、内蔵する発光ダイオードチップ
が共に１８０°以下の回転角度で変位した状態に配置さ
れているため、３種又は２種の発光ダイオードチップを
同時発光させたとき、発光ダイオード表示装置を見る方
向によって発光色が異なることがないという効果が得ら
れる。また、１８０°以下の回転角度での変位であるた
め、第１の発明に係る発光ダイオード表示装置と同様、
発光ダイオードチップの単色発光時、スクロール表示に
揺れが生じたりすることがないという効果が得られる。
しかも、その変位によって各発光色の指向特性を１８０
°まで変化させた場合でも、各発光色の指向特性間の間
隔は狭いため、残りの２色の発光によって指向特性の変
化が緩和され、スクロール表示の揺れは効果的に抑えら
れる。According to the light emitting diode display device of the second aspect of the invention, the light emitting diode element has a state in which the light emitting diode chips incorporated therein are both displaced by a rotation angle of 180 ° or less. Therefore, when three or two types of light emitting diode chips are made to emit light at the same time, the effect that the emission color does not differ depending on the viewing direction of the light emitting diode display device is obtained. Further, since the displacement is at a rotation angle of 180 ° or less, like the light emitting diode display device according to the first invention,
When the light emitting diode chip emits a single color, the scroll display does not shake.
Moreover, the directional characteristic of each emission color is changed to 180 by the displacement.
Even when the angle is changed to 0 °, since the interval between the directional characteristics of each emission color is narrow, the changes in the directional characteristics are alleviated by the emission of the remaining two colors, and the fluctuation of the scroll display is effectively suppressed.
【図１】本発明の第１実施例における発光ダイオードチ
ップの配列を示す図。FIG. 1 is a diagram showing an arrangement of light emitting diode chips according to a first embodiment of the present invention.
【図２】本発明の第２実施例における発光ダイオードチ
ップの配列を示す図。FIG. 2 is a diagram showing an arrangement of light emitting diode chips according to a second embodiment of the present invention.
【図３】本発明の第３実施例における発光ダイオードチ
ップの配列を示す図。FIG. 3 is a diagram showing an arrangement of light emitting diode chips according to a third embodiment of the present invention.
【図４】本発明の第４実施例における発光ダイオードチ
ップの配列を示す図。FIG. 4 is a view showing an arrangement of light emitting diode chips according to a fourth embodiment of the present invention.
【図５】本発明の第５実施例における発光ダイオードチ
ップの配列を示す図。FIG. 5 is a view showing an arrangement of light emitting diode chips according to a fifth embodiment of the present invention.
【図６】本発明の実施例及び従来例に用いられる発光ダ
イオードランプの構造を示す断面図。FIG. 6 is a sectional view showing a structure of a light emitting diode lamp used in an embodiment of the present invention and a conventional example.
【図７】本発明の実施例及び従来例に用いられる発光ダ
イオードランプの配向曲線図。FIG. 7 is an orientation curve diagram of a light emitting diode lamp used in an example of the present invention and a conventional example.
【図８】第１の従来例における発光ダイオードチップの
配列を示す図。FIG. 8 is a diagram showing an arrangement of light emitting diode chips in a first conventional example.
【図９】第２の従来例における発光ダイオードチップの
配列を示す図。FIG. 9 is a diagram showing an arrangement of light emitting diode chips in a second conventional example.
【図１０】第３の従来例における発光ダイオードチップ
の配列を示す図。FIG. 10 is a diagram showing an arrangement of light emitting diode chips in a third conventional example.
【図１１】第４の従来例における発光ダイオードチップ
の配列を示す図。FIG. 11 is a diagram showing an arrangement of light emitting diode chips in a fourth conventional example.
Ｒ …赤色発光の発光ダイオードチップ Ｇ …緑色発光の発光ダイオードチップ Ｂ …青色発光の発光ダイオードチップ ２ …エポキシ樹脂成形体 ３ …パラボラ部分 ６ …レンズ部分 ７ …基板 １０ …２チップタイプの発光ダイオードランプ ２０ …３チップタイプの発光ダイオードランプ R ... Red light emitting diode chip G ... Green light emitting diode chip B ... Blue light emitting diode chip 2 ... Epoxy resin molded body 3 ... Parabolic part 6 ... Lens part 7 ... Substrate 10 ... 2 chip type light emitting diode lamp 20… 3-chip type LED lamp
Claims (2)
プが所定の配置で内蔵された発光ダイオード素子を、ド
ットマトリクス状に複数個配列して成る発光ダイオード
表示装置であって、 前記発光ダイオード素子は、隣接する他の発光ダイオー
ド素子に対して、内蔵する発光ダイオードチップが共に
１８０°未満の回転角度で変位した状態に配置されてい
ることを特徴とする発光ダイオード表示装置。1. A light-emitting diode display device comprising a plurality of light-emitting diode elements, each of which has two kinds of light-emitting diode chips of different emission colors and is embedded in a predetermined arrangement, arranged in a dot matrix. Is a light emitting diode display device in which the built-in light emitting diode chips are both displaced with respect to another adjacent light emitting diode element at a rotation angle of less than 180 °.
プが所定の配置で内蔵された発光ダイオード素子を、ド
ットマトリクス状に複数個配列して成る発光ダイオード
表示装置であって、 前記発光ダイオード素子は、隣接する他の発光ダイオー
ド素子に対して、内蔵する発光ダイオードチップが共に
１８０°以下の回転角度で変位した状態に配置されてい
ることを特徴とする発光ダイオード表示装置。2. A light-emitting diode display device comprising a plurality of light-emitting diode elements, each of which has three kinds of light-emitting diode chips of different emission colors and is embedded in a predetermined arrangement, arranged in a dot matrix. Is a light emitting diode display device in which the built-in light emitting diode chips are both displaced with respect to another adjacent light emitting diode element at a rotation angle of 180 ° or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6164964A JPH0830213A (en) | 1994-07-18 | 1994-07-18 | Light emitting diode display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6164964A JPH0830213A (en) | 1994-07-18 | 1994-07-18 | Light emitting diode display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0830213A true JPH0830213A (en) | 1996-02-02 |
Family
ID=15803224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6164964A Pending JPH0830213A (en) | 1994-07-18 | 1994-07-18 | Light emitting diode display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0830213A (en) |
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