JPH0263065B2 - - Google Patents
Info
- Publication number
- JPH0263065B2 JPH0263065B2 JP12388183A JP12388183A JPH0263065B2 JP H0263065 B2 JPH0263065 B2 JP H0263065B2 JP 12388183 A JP12388183 A JP 12388183A JP 12388183 A JP12388183 A JP 12388183A JP H0263065 B2 JPH0263065 B2 JP H0263065B2
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- display element
- emitting diode
- display device
- element array
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
- B41J2/45—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Description
【発明の詳細な説明】
この発明は表示装置、たとえば光プリンタ等に
使用される表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device, for example a display device used in an optical printer or the like.
近年、発光ダイオード・アレイを光源とする電
子写真プリンタが開発され、実用化されつつあ
る。この電子写真プリンタに使用される発光ダイ
オード・アレイは１チツプに複数個の微小発光ダ
イオード素子（たとえば128素子）が一定間隔
（たとえば100μｍ）で配置されるものであり、プ
リンタの光源用の表示装置としては、さらにこの
発光ダイオード・アレイを複数個（たとえば16チ
ツプ）縦続設置するのが通常である。この種の発
光ダイオード・アレイの概略図を第１図に示して
いる。発光ダイオード・アレイ１は、チツプ基板
２上に、複数個の表示ドツトすなわち微小発光部
３が所定ピツチl1で配列されている。この発光ダ
イオード・アレイ１の先端から最先端の微小発光
部３を含む距離l2はピツチl1と同程度であり、ま
た発光ダイオード・アレイ１の先端から最先端の
微小発光部３までの距離をl3とすると、l1＝l2＋l3
とできず、したがつて発光ダイオード・アレイ１
を同方向に縦続配置し、表示装置全体の微小発光
部のピツチを全て同一にできない。そのため従来
の光プリンタ用の表示装置は、第２図に示すよう
に、発光ダイオード・アレイ１を交互に幅方向に
（図では上下）にずらして縦続配置し、隣接する
発光ダイオード・アレイ間の微小発光部の距離
も、ピツチl1と等しくなるようにしていた。しか
しながらこの表示装置では、発光ダイオード・ア
レイ１を交互に幅方向にずらすので表示ドツトを
厳密な意味で１直線の行線とできないし、表示装
置の幅が大となる上に、同一ピツチとするための
位置調整が煩雑であるという欠点があつた。 In recent years, electrophotographic printers using light emitting diode arrays as light sources have been developed and are being put into practical use. The light emitting diode array used in this electrophotographic printer is one in which multiple microscopic light emitting diode elements (for example, 128 elements) are arranged at regular intervals (for example, 100 μm) on one chip, and is used as a display device for the printer's light source. Furthermore, it is common to install a plurality of light emitting diode arrays (for example, 16 chips) in series. A schematic diagram of this type of light emitting diode array is shown in FIG. In the light emitting diode array 1, a plurality of display dots, that is, minute light emitting parts 3 are arranged on a chip substrate 2 at a predetermined pitch l1 . The distance l 2 from the tip of the light emitting diode array 1 to the most advanced micro light emitting section 3 is approximately the same as the pitch l 1 , and the distance from the tip of the light emitting diode array 1 to the most advanced micro light emitting section 3 If is l 3 , then l 1 = l 2 + l 3
Therefore, the light emitting diode array 1
are arranged in series in the same direction, and the pitches of the minute light emitting parts of the entire display cannot be made the same. Therefore, in a conventional display device for an optical printer, as shown in FIG. 2, the light emitting diode arrays 1 are alternately arranged in a cascade by shifting them in the width direction (up and down in the figure). The distance between the minute light emitting parts was also set to be equal to the pitch l1 . However, in this display device, since the light emitting diode arrays 1 are alternately shifted in the width direction, the display dots cannot be made into one straight row line in the strict sense, and the width of the display device is large, and the dots must be arranged at the same pitch. The disadvantage was that the position adjustment was complicated.
この発明の目的は、上記した従来の表示装置の
欠点を解消し、表示装置の全ての表示ドツトのピ
ツチを、横幅を大にすることもなく、しかも位置
合わせ等に労力を要することなく、均一となし得
るすなわちピツチ精度の高い表示装置を提供する
にある。 The purpose of the present invention is to eliminate the above-mentioned drawbacks of the conventional display device, and to make the pitch of all the display dots of the display device uniform without increasing the width and without requiring labor for positioning. The object of the present invention is to provide a display device with high pitch accuracy.
上記目的を達成するために、この発明の表示装
置は、表示素子アレイを設置する基板表面を、表
示素子アレイに対応して断面形状が緩傾斜部と垂
直部とを持つ鋸歯状となるように形成するととも
に、前記緩傾斜部の長さを前記表示素子アレイの
長さより短く、前記垂直部の深さを前記表示素子
アレイの厚味よりも大に形成し、前記緩傾斜部に
前記表示素子アレイを載置し、かつ前記基板の表
示素子アレイの設置部分を除く部分に、微小発光
部を設け、これら電極パターンと微小発光部とを
リード線で接続するようにしている。 In order to achieve the above object, the display device of the present invention has a substrate surface on which a display element array is installed so that the cross-sectional shape has a sawtooth shape with a gently sloped part and a vertical part corresponding to the display element array. The length of the gently sloped portion is shorter than the length of the display element array, the depth of the vertical portion is larger than the thickness of the display element array, and the display element is formed in the gently sloped portion. A minute light emitting section is provided on a portion of the substrate on which the array is placed and excluding a portion of the substrate where the display element array is installed, and these electrode patterns and the minute light emitting section are connected by lead wires.
以下実施例により、この発明をさらに詳細に説
明する。 The present invention will be explained in more detail with reference to Examples below.
第３図は、この発明の１実施例を示す表示装置
の一部省略平面図、第４図は同横断面図、第５図
は同表示装置の一部省略中央縦断面図である。図
面において表示装置１０は、基板（例：アルミ基
板）と、この基板１１の中央部表面に複数個縦続
設置される発光ダイオード・アレイ（表示素子ア
レイ）１２と、中空部１５を有し、発光ダイオー
ド・アレイ１２の設置領域を除いて前記基板１１
上に形成される可撓性基板１３とから構成されて
いる。 FIG. 3 is a partially omitted plan view of a display device showing one embodiment of the present invention, FIG. 4 is a cross-sectional view of the same, and FIG. 5 is a partially omitted center vertical cross-sectional view of the same display device. In the drawings, a display device 10 includes a substrate (for example, an aluminum substrate), a plurality of light emitting diode arrays (display element arrays) 12 arranged in series on the central surface of this substrate 11, and a hollow portion 15, and has a hollow portion 15, and a hollow portion 15 for emitting light. The substrate 11 except for the installation area of the diode array 12
A flexible substrate 13 is formed thereon.
基板１１は、第５図に示すように、発光ダイオ
ード・アレイ１２の設置領域の断面形状が緩傾斜
部１６と垂直部１７とを持つ鋸歯状となるように
形成されており、鋸歯状部は発光ダイオード・ア
レイ１２の数に対応して設けられ、緩傾斜部１６
には、それぞれ発光ダイオード・アレイ１２が載
置固着される。また垂直部１７の深さは発光ダイ
オード・アレイ１２の厚味に対し、大きく選定さ
れる。たとえば発光ダイオード・アレイの厚味が
250μｍであるとすると350μｍ程度に選定される。
さらにまた、緩傾斜部１６の長さは、発光ダイオ
ード・アレイ１２の長さに対し、若干短く選定さ
れる。したがつて相隣接する発光ダイオード・ア
レイ１２の端部は、上下に重なり合つて接合され
るので、緩傾斜部１６の長さを発光ダイオード・
アレイ１２の長さに対し、どの程度短くするか選
定することにより、緩傾斜を考慮した発光ダイオ
ード・アレイ１２のピツチl11と、隣接する発光
ダイオード・アレイ１２の両端の微小発光部１４
間の距離l12を等しくできる。すなわち表示装置
１０の上面から目視した全微小発光部１４のピツ
チを等しくできる。 As shown in FIG. 5, the substrate 11 is formed so that the cross-sectional shape of the area where the light emitting diode array 12 is installed has a sawtooth shape with a gently sloped part 16 and a vertical part 17. Gently inclined portions 16 are provided corresponding to the number of light emitting diode arrays 12.
A light emitting diode array 12 is mounted and fixed on each of the panels. Further, the depth of the vertical portion 17 is selected to be large relative to the thickness of the light emitting diode array 12. For example, the thickness of a light emitting diode array
If it is 250 μm, approximately 350 μm is selected.
Furthermore, the length of the gently sloped portion 16 is selected to be slightly shorter than the length of the light emitting diode array 12. Therefore, the ends of the adjacent light emitting diode arrays 12 are joined to each other in a vertically overlapping manner, so that the length of the gently sloped portion 16 is determined by the length of the light emitting diode array 12.
By selecting how much to shorten the length of the array 12, the pitch l11 of the light emitting diode array 12 considering the gentle slope and the micro light emitting portions 14 at both ends of the adjacent light emitting diode array 12 can be adjusted.
The distance l12 between them can be made equal. That is, the pitches of all the minute light emitting sections 14 when viewed from the top surface of the display device 10 can be made equal.
可撓性基板１３の周辺部には、発光ダイオー
ド・アレイ１２の微小発光部１４に対応する電極
パターン１８が形成され、この電極パターン１８
と前記微小発光部１４はリード線１９によつて
各々接続されている。このリード線の接続は、た
とえばワイヤボンデイングによつて行われる。 An electrode pattern 18 corresponding to the micro light emitting portions 14 of the light emitting diode array 12 is formed on the periphery of the flexible substrate 13.
and the minute light emitting section 14 are connected to each other by a lead wire 19. This lead wire connection is performed, for example, by wire bonding.
なお、上記実施例において、垂直部は略垂直で
あればよく、若干傾斜を持つものであつてもよ
く、この発明にはこれらも含まれる。 In the above embodiments, the vertical portion may be substantially vertical or may be slightly inclined, and this invention also includes these.
以上のように、この発明によれば、発光ダイオ
ード・アレイを載置固着する基板を断面形状が緩
傾斜部と垂直部からなる鋸歯状に形成するととも
に、垂直部の深さを表示素子アレイの厚味よりも
大となるように、かつ緩傾斜部の長さを表示素子
アレイの長さよりも短くし、緩傾斜部に表示素子
アレイを載置して縦続設置するものであるから、
緩傾斜部の傾斜及び緩傾斜部の長さ、垂直部の深
さを適正に選定することにより、表示装置全体の
ドツトピツチを均一にすることができ、ピツチ精
度を確保できる。しかも表示素子アレイを厳密に
一直線上の行線に配列できるので、横幅の小さな
表示装置を得ることができる。その上、表示素子
アレイ配設時の面倒な位置合わせが不要である。 As described above, according to the present invention, the substrate on which the light emitting diode array is mounted and fixed is formed to have a sawtooth cross-sectional shape consisting of a gently sloped part and a vertical part, and the depth of the vertical part is set to the depth of the display element array. This is because the display element array is placed in cascade by placing the display element array on the gently sloped part so that the display element array is larger than the thickness and the length of the gently sloped part is shorter than the length of the display element array.
By appropriately selecting the slope of the gently sloped portion, the length of the gently sloped portion, and the depth of the vertical portion, the dot pitch of the entire display device can be made uniform, and pitch accuracy can be ensured. Moreover, since the display element array can be arranged in rows strictly in a straight line, a display device with a small width can be obtained. Moreover, troublesome positioning is not required when arranging the display element array.
第１図は光プリンタに使用される発光ダイオー
ド・アレイを示す概略図、第２図は同発光ダイオ
ード・アレイを用いた従来の表示装置を示す図、
第３図はこの発明の１実施例を示す表示装置の一
部省略平面図、第４図は同表示装置の横断面図、
第５図は同表示装置の一部省略中央縦断面図であ
る。
１０：表示装置、１１：基板、１２：発光ダイ
オード・アレイ、１３：可撓性基板、１４：微小
発光部、１６：緩傾斜部、１７：垂直部、１８：
電極パターン、１９：リード線。
FIG. 1 is a schematic diagram showing a light emitting diode array used in an optical printer, and FIG. 2 is a diagram showing a conventional display device using the same light emitting diode array.
FIG. 3 is a partially omitted plan view of a display device showing one embodiment of the present invention, and FIG. 4 is a cross-sectional view of the same display device.
FIG. 5 is a partially omitted central vertical sectional view of the display device. 10: Display device, 11: Substrate, 12: Light emitting diode array, 13: Flexible substrate, 14: Micro light emitting section, 16: Gentle slope section, 17: Vertical section, 18:
Electrode pattern, 19: Lead wire.
Claims (1)
れる表示素子アレイの複数個を、基板上に縦続設
置してなる表示装置において、 前記基板上の前記表示素子アレイ設置部分は、
表示素子アレイに対応して断面形状が緩傾斜部と
垂直部とを持つ鋸歯状となるように形成するとと
もに、それぞれ前記緩傾斜部の長さを前記表示素
子アレイの長さより短くし、前記垂直部の深さを
前記表示素子アレイの厚味よりも大に形成し、前
記緩傾斜部に前記表示素子アレイを載置し、かつ
前記基板上の表示素子アレイの設置部分を除く部
分に、微小発光部に対応する電極パターンを持つ
可撓性基板を設け、これら電極パターンと微小発
光部とをリード線で接続してなる表示装置。[Scope of Claims] 1. A display device in which a plurality of display element arrays, each of which has a plurality of display element arrays arranged at predetermined intervals, are arranged in series on a substrate, comprising the steps of: installing the display element array on the substrate; Part,
The cross-sectional shape is formed into a sawtooth shape having a gently sloped part and a vertical part corresponding to the display element array, and the length of each gently sloped part is made shorter than the length of the display element array, and the vertical part is The depth of the display element array is larger than the thickness of the display element array. A display device is provided with a flexible substrate having electrode patterns corresponding to light emitting parts, and these electrode patterns and minute light emitting parts are connected with lead wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58123881A JPS6013575A (en) | 1983-07-05 | 1983-07-05 | Indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58123881A JPS6013575A (en) | 1983-07-05 | 1983-07-05 | Indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6013575A JPS6013575A (en) | 1985-01-24 |
| JPH0263065B2 true JPH0263065B2 (en) | 1990-12-27 |
Family
ID=14871672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58123881A Granted JPS6013575A (en) | 1983-07-05 | 1983-07-05 | Indicator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6013575A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62104956U (en) * | 1985-12-20 | 1987-07-04 | ||
| US5997152A (en) * | 1997-09-15 | 1999-12-07 | Oki Electric Industry Co., Ltd. | Light emitting element module and printer head using the same |
-
1983
- 1983-07-05 JP JP58123881A patent/JPS6013575A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6013575A (en) | 1985-01-24 |
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