JP2014035270A - Residual image led display device - Google Patents
Residual image led display device Download PDFInfo
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- JP2014035270A JP2014035270A JP2012176640A JP2012176640A JP2014035270A JP 2014035270 A JP2014035270 A JP 2014035270A JP 2012176640 A JP2012176640 A JP 2012176640A JP 2012176640 A JP2012176640 A JP 2012176640A JP 2014035270 A JP2014035270 A JP 2014035270A
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- 239000000758 substrate Substances 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 3
- 206010047571 Visual impairment Diseases 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
Description
この発明は、計測に用いる残像ＬＥＤ表示装置の表示方式に関する。 The present invention relates to a display method of an afterimage LED display device used for measurement.
従来のＬＥＤ表示装置は図1で示すように、放射状ピースを導光体として略円板状に配置され、放射状ピース外周より、駆動部によりＬＥＤを回動させ、制御装置によって所定角度位置に位置したとき、放射状ピースにＬＥＤを発光することにより、指針として表示できる構造のものであった。 As shown in FIG. 1, the conventional LED display device is arranged in a substantially disc shape with the radial piece as a light guide, and the LED is rotated by the drive unit from the outer periphery of the radial piece and positioned at a predetermined angular position by the control device. When it did, it was a thing of the structure which can be displayed as a pointer | guide by light-emitting LED on a radial piece.
従来の方法での実施形態であるスピードメータの指針として表示するために、放射状ピースなる導光体を配置し、メータの目盛の最小分解能の数値を２ｋｍ／ｈとするならば、最大表示１８０ｋｍ／ｈのとき、９０個の放射状ピースを略円板状に配置する構造が必須であった。 In order to display as a pointer of a speedometer which is an embodiment of the conventional method, if a light guide body of a radial piece is arranged and the minimum resolution value of the meter scale is 2 km / h, a maximum display of 180 km / In the case of h, a structure in which 90 radial pieces were arranged in a substantially disk shape was essential.
そこで、この発明は、円板状の基板の外周直近にＬＥＤを実装したものをモータ軸に取り付け、制御装置により一定速度で回動させて、ＬＥＤの発光のタイミングを制御することにより発光の軌跡が指針に置き換えられ、残像効果により、円弧状に表示をさせる構造としている。 Therefore, in the present invention, an LED mounted near the outer periphery of a disk-shaped substrate is attached to a motor shaft, and is rotated at a constant speed by a control device, thereby controlling the timing of light emission of the LED, thereby emitting light. Is replaced with a pointer, and the display is in an arc shape by the afterimage effect.
従来の機械的構成部品である放射状ピースなる導光体を削減し、構造の簡素化を図り、耐久性、生産コストの低減と共に製品品質を向上することができる．
また、指針盤、導光体が不要なため、奥行き寸法を小さくして軽量、小型化が可能で、視認性が向上する。
さらに最小目盛の分解能は導光体に依存して設計する必要がないため、設計の自由度が上がる。
By reducing the number of light guides, which are radial pieces, which are conventional mechanical components, the structure can be simplified, and the product quality can be improved along with the reduction of durability and production cost.
In addition, since a pointer board and a light guide are not required, the depth dimension can be reduced to reduce the weight and size, and the visibility can be improved.
Furthermore, since the resolution of the minimum scale does not need to be designed depending on the light guide, the degree of freedom in design increases.
この発明の一実施形態を、図２に示す。
円板状の基板１の外周直近にチップ型ＬＥＤ２が実装されている。
モータ３の軸５にこの円板状の基板が取り付けられている。
円板状の基板が回転する際、起算点とする原点信号を発生させるために、赤外線反射センサ６と反射板７を、円板状の基板とモータの間に具備している。
この原点信号によりＬＥＤの発光タイミングが制御できる構造になっており、目盛盤４にある数値を読みとることができる。
One embodiment of the present invention is shown in FIG.
A chip-type LED 2 is mounted in the immediate vicinity of the outer periphery of the disk-shaped substrate 1.
This disk-shaped substrate is attached to the shaft 5 of the motor 3.
In order to generate an origin signal as a starting point when the disk-shaped substrate rotates, an infrared reflection sensor 6 and a reflection plate 7 are provided between the disk-shaped substrate and the motor.
The light emission timing of the LED can be controlled by this origin signal, and the numerical value on the dial 4 can be read.
図３はこの発明の実施形態の残像ＬＥＤ表示装置としての回転計を示す平面図である。
この発明の実施形態の残像ＬＥＤ表示装置はエンジン用回転計として適用され、毎分０から１４，０００回転までの回転数を表示する数字が目盛盤に刻まれている。
円板状の基板が常時回転し、ＬＥＤは目盛盤の０の位置では常に、赤外線反射センサ６と反射板７により原点信号を発生し、制御装置に信号を送り出している。
FIG. 3 is a plan view showing a tachometer as an afterimage LED display device according to an embodiment of the present invention.
The afterimage LED display device according to the embodiment of the present invention is applied as an engine tachometer, and a number indicating the number of revolutions from 0 to 14,000 revolutions per minute is engraved on the dial.
The disk-shaped substrate always rotates, and the LED always generates an origin signal by the infrared reflection sensor 6 and the reflection plate 7 at the position 0 on the scale plate, and sends the signal to the control device.
図４の回転計の拡大部分平面図ではモータの１ステップずつの連続動作を示している。
モータは制御装置により、１ステップずつ角度を刻んで回転し、ＬＥＤは原点の位置で点灯を開始し、計測回転数に相当するステップ数の位置で消灯する。
図４では目盛の３（３，０００回転）の位置で、１２ステップ回転した位置でＬＥＤが消灯している。
この点灯を目盛の３（３，０００回転）の位置において、瞬時発光させると、導光体を具備しない構造であるので点として表示され視認性が悪いが、この発明では、原点より連続発光することにより、円弧状の軌跡８となり、さらに、目の残像によって、あたかも複数のＬＥＤ発光が発光しているかのように見える。
特に競技用車輌に使われるエンジンは、回転の変化が激しいため、運転者に遅延を最小かつ、瞬時の視認性を高めて知らせることが競技の勝敗に関わるので、この発明の実施形態の残像ＬＥＤ表示装置としてエンジン回転計は適している。
The enlarged partial plan view of the tachometer in FIG. 4 shows the continuous operation of the motor step by step.
The motor is rotated step by step by the control device, the LED starts to light at the position of the origin, and is turned off at the position corresponding to the measured number of rotations.
In FIG. 4, the LED is turned off at a position of 12 steps rotated at a position of 3 (3,000 rotations) on the scale.
When this lighting is instantaneously emitted at the position of 3 (3,000 rotations) on the scale, the light guide is not provided, so that it is displayed as a point and has poor visibility, but in the present invention, it continuously emits light from the origin. As a result, an arc-shaped trajectory 8 is formed, and furthermore, the afterimage of the eye looks as if a plurality of LEDs are emitted.
In particular, since the engine used in the vehicle for competition is subject to a rapid change in rotation, it is related to winning and losing the competition to inform the driver with minimal delay and instantaneous visibility, so the afterimage LED of the embodiment of the present invention An engine tachometer is suitable as a display device.
図５はこの実施形態の残像ＬＥＤ表示装置としての回転計の電気的構成および動作を示したブロック図である。 FIG. 5 is a block diagram showing the electrical configuration and operation of a tachometer as an afterimage LED display device of this embodiment.
まず、回転センサ１１より回転信号が生成され、回転計測部２４に入力される。波形整形回路２１を介してカウンタ２２に入力され、所定時間の数値として、記憶回路２３に一時記憶される。
一方、モータ駆動部３４では発振回路３１で基準周波数が生成され、モータ制御回路３２へ一定速度の回転を保つようにモータドライブ信号を生成する。
さらに、モータドライバ３５を介してモータ５を駆動する。
この時、モータ駆動部３４からは同時に制御信号を回転計測部２４にも入力され、記憶回路２３に一時記憶されていた数値に対して、モータ回転と同期を取って、ＬＥＤ点灯信号出力としてＬＥＤドライバ２５を介して、ＬＥＤ２の点灯、消灯を制御する。
なお、カウンタ２２の所定時間の数値は、毎回転、赤外線反射センサ６と反射板７により生成された原点信号よってクリアし、計測回転数と目盛盤の数値が合致するように演算される。計測は円板状の基板１が回転する度、繰り返えされる。
First, a rotation signal is generated from the rotation sensor 11 and input to the rotation measurement unit 24. The value is input to the counter 22 via the waveform shaping circuit 21 and temporarily stored in the storage circuit 23 as a numerical value for a predetermined time.
On the other hand, the motor drive unit 34 generates a reference frequency by the oscillation circuit 31 and generates a motor drive signal to the motor control circuit 32 so as to keep the rotation at a constant speed.
Further, the motor 5 is driven via the motor driver 35.
At this time, a control signal is simultaneously input from the motor driving unit 34 to the rotation measuring unit 24, and the numerical value temporarily stored in the storage circuit 23 is synchronized with the motor rotation to output the LED lighting signal as an LED lighting signal output. The LED 2 is controlled to be turned on / off via the driver 25.
The numerical value for the predetermined time of the counter 22 is cleared at every rotation by the origin signal generated by the infrared reflection sensor 6 and the reflecting plate 7, and is calculated so that the measured rotational speed and the numerical value of the scale plate match. The measurement is repeated every time the disk-shaped substrate 1 rotates.
２０ ＬＥＤ
５１ 導光体
５２ 反射面
６０ 指針盤
６１ 指針
６５ 駆動軸
７１ 駆動部
１ 円板状の基板
２ チップ型ＬＥＤ
３ モータ
４ 目盛盤
５ モータ軸
６ 赤外線反射センサ
７ 赤外線反射板
８ ＬＥＤ発光の軌跡
１１ 回転センサ
２１ 波形整形回路
２２ カウンタ
２３ 記憶回路
２４ 回転計測部
２５ ＬＥＤドライバ
３１ 発振回路
３２ モータ制御回路
３４ モータ駆動部
３５ モータドライバ
20 LED
51 Light Guide 52 Reflecting Surface 60 Pointer Board 61 Pointer 65 Drive Shaft 71 Drive Unit 1 Disc-shaped Substrate 2 Chip LED
3 Motor 4 Scale plate 5 Motor shaft 6 Infrared reflection sensor 7 Infrared reflection plate 8 LED emission locus 11 Rotation sensor 21 Waveform shaping circuit 22 Counter 23 Storage circuit 24 Rotation measurement unit 25 LED driver 31 Oscillation circuit 32 Motor control circuit 34 Motor drive Part
35 Motor driver
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012176640A JP2014035270A (en) | 2012-08-09 | 2012-08-09 | Residual image led display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012176640A JP2014035270A (en) | 2012-08-09 | 2012-08-09 | Residual image led display device |
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|---|---|
| JP2014035270A true JP2014035270A (en) | 2014-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012176640A Pending JP2014035270A (en) | 2012-08-09 | 2012-08-09 | Residual image led display device |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407617A (en) * | 2017-01-31 | 2018-08-17 | 矢崎总业株式会社 | Display device |
| CN109835189A (en) * | 2017-11-27 | 2019-06-04 | 矢崎总业株式会社 | Metering device and the instrument pack for being provided with metering device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000112378A (en) * | 1998-08-06 | 2000-04-21 | Harness Syst Tech Res Ltd | Display device |
| JP2002257598A (en) * | 2001-03-05 | 2002-09-11 | Nippon Seiki Co Ltd | Pointer type indicator |
| JP2002257597A (en) * | 2001-02-28 | 2002-09-11 | Nippon Seiki Co Ltd | Pointer type indicator |
| JP2004045094A (en) * | 2002-07-09 | 2004-02-12 | Honda Motor Co Ltd | Meter for vehicle |
-
2012
- 2012-08-09 JP JP2012176640A patent/JP2014035270A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000112378A (en) * | 1998-08-06 | 2000-04-21 | Harness Syst Tech Res Ltd | Display device |
| JP2002257597A (en) * | 2001-02-28 | 2002-09-11 | Nippon Seiki Co Ltd | Pointer type indicator |
| JP2002257598A (en) * | 2001-03-05 | 2002-09-11 | Nippon Seiki Co Ltd | Pointer type indicator |
| JP2004045094A (en) * | 2002-07-09 | 2004-02-12 | Honda Motor Co Ltd | Meter for vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407617A (en) * | 2017-01-31 | 2018-08-17 | 矢崎总业株式会社 | Display device |
| CN108407617B (en) * | 2017-01-31 | 2021-01-19 | 矢崎总业株式会社 | Display device |
| CN109835189A (en) * | 2017-11-27 | 2019-06-04 | 矢崎总业株式会社 | Metering device and the instrument pack for being provided with metering device |
| CN109835189B (en) * | 2017-11-27 | 2021-11-16 | 矢崎总业株式会社 | Meter device and meter unit provided with meter device |
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