JP2006208879A - Display device - Google Patents

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JP2006208879A
JP2006208879A JP2005022527A JP2005022527A JP2006208879A JP 2006208879 A JP2006208879 A JP 2006208879A JP 2005022527 A JP2005022527 A JP 2005022527A JP 2005022527 A JP2005022527 A JP 2005022527A JP 2006208879 A JP2006208879 A JP 2006208879A
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design
glass
wiring
display device
light
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JP4305665B2 (en
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Yuichiro Nakamura
雄一郎 中村
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Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To mainly provide a display device employing an inexpensive fluorescent display tube which can suppress the occurrence of false lighting of design sections even when two or more design sections are closely arranged. <P>SOLUTION: The display device is equipped with; a fluorescent display tube 2 in which an airtight container in which surroundings of a front glass 4 and a back glass 5 are enclosed by a glass 6 is formed and filaments 7, a grid 8 and an electrode 9 provided with a phosphor 10 are contained in the airtight container and also wiring 12 for connecting to the electrode 9 is provided on the back glass 5; and a display member 3 which is equipped with; a diffusion and transmission member 18 having two or more adjacent design sections 17; and light sources 19 which transmission-illuminate the design sections 17, wherein openings 15b corresponding to the two or more adjacent design sections 17 are provided in the wiring 12, and the display member 3 is provided behind the fluorescent display tube 2, and the two or more adjacent design sections 17 are displayed through the openings 15b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、蛍光表示管を用いた表示装置に関し、特に、蛍光表示管を通して意匠部を表示する表示装置に関する。   The present invention relates to a display device using a fluorescent display tube, and more particularly to a display device that displays a design portion through a fluorescent display tube.

従来、蛍光表示管を用いた表示装置は、フィラメント状の陰極と、グリッドおよびアノード電極を2枚の板状のガラスを使って形成した真空の箱型の容器に封入したものである。アノード電極上に蛍光体が塗布されており、セグメント、ドット、あるいは記号などの、さまざまな形状に発光するものであり、フィルターを設けることで、様々な色で蛍光体を発光させることができる(下記特許文献1を参照)。
特開昭60−65557号公報(第1図参照)
2. Description of the Related Art Conventionally, a display device using a fluorescent display tube has a filament-shaped cathode, a grid, and an anode electrode sealed in a vacuum box-shaped container formed by using two plate-shaped glasses. The phosphor is applied on the anode electrode, and emits light in various shapes such as segments, dots, or symbols. By providing a filter, the phosphor can emit light in various colors ( (See Patent Document 1 below).
JP-A-60-65557 (see FIG. 1)

このような蛍光表示管を車両用の表示装置に用いた場合、車両用の表示装置は、表示色に様々な色を使用する。例えば、パーキングブレーキの作動状態や、ハイビームなどの作動状態などの車両の状態を表示する表示部では、赤、青及びアンバーなどの様々な色を使用します。このような車両用の表示装置に、蛍光表示管を用いることは可能であるが、様々な色を使用するために、蛍光表示管のコストの上昇を招くという問題があった。   When such a fluorescent display tube is used in a vehicle display device, the vehicle display device uses various colors as display colors. For example, various colors such as red, blue, and amber are used in the display that displays the status of the vehicle, such as the parking brake operating status and high beam operating status. Although it is possible to use a fluorescent display tube for such a display device for a vehicle, since various colors are used, there is a problem in that the cost of the fluorescent display tube is increased.

そこで、蛍光表示管で使用する色の数を削減するために、図4、5で示すような表示装置101が考えられている。この表示装置101は、蛍光表示管102と照明装置103とから構成されている。   Therefore, in order to reduce the number of colors used in the fluorescent display tube, a display device 101 as shown in FIGS. 4 and 5 is considered. The display device 101 includes a fluorescent display tube 102 and an illumination device 103.

蛍光表示管102は、前面ガラス104と背面ガラス105を備えており、この2枚のガラス104、105の周囲をガラス106で囲んで密閉容器を形成している。この密閉容器内には、フィラメント107と、グリッド108と、図示しないアノード電極と、このアノード電極上に設けた蛍光体110と、絶縁層111及び配線112が収納されている。車両の速度を蛍光体110を設けた前記アノード電極を駆動することで表示する。なお、前記アノード電極と配線112は、絶縁層111に設けたスルーホールを介して接続する。また、配線112はリード114を介して外部の回路と接続されている。配線112は、金属製で光は通らない遮光性を備え、そして、配線112の一部を取り除いて、車両の方向指示や、パーキングブレーキの作動状態及び前照灯のハイビームの作動状態などの車両の状態を表示する意匠部102aを形成している。   The fluorescent display tube 102 includes a front glass 104 and a rear glass 105, and the two glasses 104 and 105 are surrounded by a glass 106 to form a sealed container. In this sealed container, a filament 107, a grid 108, an anode electrode (not shown), a phosphor 110 provided on the anode electrode, an insulating layer 111 and a wiring 112 are accommodated. The speed of the vehicle is displayed by driving the anode electrode provided with the phosphor 110. The anode electrode and the wiring 112 are connected through a through hole provided in the insulating layer 111. Further, the wiring 112 is connected to an external circuit through the lead 114. The wiring 112 is made of metal and has a light-shielding property that does not allow light to pass therethrough, and a part of the wiring 112 is removed so that a vehicle direction indication, a parking brake operating state, a headlight high beam operating state, etc. The design part 102a which displays the state of is formed.

照明装置103は、蛍光表示管102の背後に設け、意匠部102aを背後から照明するものであり、拡散透過部材118と、光源である発光ダイオード119とを備えている。拡散透過部材118は、光拡散用の微粒子を含んだ合成樹脂からなり乳白色をしている。発光ダイオード119は、それぞれの意匠部102aによって発光色が異なり、車両の進行方向を指示する方向指示は緑色の発光色で、パーキングブレーキの作動状態は赤色の発光色で、前照灯のハイビームの作動状態は青色の発光色である。なお、120は、白色の不透光性の合成樹脂からなるケースであり、121は、硬質の回路基板である。ケース120には、仕切壁122が形成されており、この仕切壁122によって、各意匠部102aに対応した照明室123が形成されている。この表示装置101は、従来の蛍光表示管のみの表示装置に比べて、安価に製造することができた。   The illuminating device 103 is provided behind the fluorescent display tube 102 and illuminates the design portion 102a from the back, and includes a diffusing and transmitting member 118 and a light emitting diode 119 that is a light source. The diffuse transmission member 118 is made of a synthetic resin containing fine particles for light diffusion and is milky white. The light emitting diodes 119 have different emission colors depending on the respective design portions 102a, the direction indication for instructing the traveling direction of the vehicle is green emission color, the parking brake operating state is red emission color, and the high beam of the headlamp The operating state is a blue emission color. Reference numeral 120 denotes a case made of a white non-transparent synthetic resin, and reference numeral 121 denotes a hard circuit board. A partition wall 122 is formed in the case 120, and an illumination chamber 123 corresponding to each design part 102 a is formed by the partition wall 122. This display device 101 could be manufactured at a lower cost than a conventional display device having only a fluorescent display tube.

しかし、表示装置101では、2つ以上の意匠部102aを近接配置した場合、一方の意匠部102aを照明すると、一方の意匠を照明する光Lが、配線112の背面で反射し背面ガラス105内を通って、他方の意匠部102aを照明し、他方の意匠部102aの光源119が点灯していなくとも、あたかも点灯しているように見える擬似点灯という現象が発生するという問題があった。そこで、本発明では、安価で、2つ以上の意匠部を近接配置しても意匠部の擬似点灯の発生を抑制することが可能な蛍光表示管を用いた表示装置の提供を主な目的とするものである。   However, in the display device 101, when two or more design parts 102 a are arranged close to each other, when one design part 102 a is illuminated, the light L that illuminates one design is reflected by the back surface of the wiring 112 and is within the back glass 105. There is a problem that even if the other design portion 102a is illuminated and the light source 119 of the other design portion 102a is not lit, a phenomenon of pseudo-lighting that appears to be lit occurs. Therefore, the main object of the present invention is to provide a display device using a fluorescent display tube that is inexpensive and can suppress the occurrence of pseudo-lighting of the design portion even when two or more design portions are arranged close to each other. To do.

本発明は、前記目的を達成するため、前面ガラスと背面ガラスとの周囲をガラスで囲んだ密閉容器を形成し、この密閉容器内にフィラメントと、グリッド、蛍光体を設けた電極とを収納するとともに前記背面ガラスに前記電極とに接続する配線を設けた蛍光表示管と、近接した2つ以上の意匠部を備えた拡散透過部材と前記意匠部を透過照明する光源とを備えた表示部材とを備え、前記近接した2つ以上の意匠部に対応した開口を前記配線に設け、前記表示部材を前記蛍光表示管の背後に設け、前記近接した2つ以上の意匠部を前記開口を通して表示するものである。   In order to achieve the above object, the present invention forms a sealed container in which the periphery of the front glass and the rear glass is surrounded by glass, and the filament, the grid, and the electrode provided with the phosphor are accommodated in the sealed container. And a display member comprising a fluorescent display tube provided with wiring connected to the electrode on the back glass, a diffuse transmission member provided with two or more adjacent design parts, and a light source for transmitting illumination of the design part, An opening corresponding to the two or more adjacent design portions is provided in the wiring, the display member is provided behind the fluorescent display tube, and the two or more adjacent design portions are displayed through the opening. Is.

また、前記意匠部を前記拡散透過部材の前面に設けた遮光層で形成したものである。   Moreover, the said design part is formed with the light shielding layer provided in the front surface of the said diffuse transmission member.

また、前記拡散透過部材の前記意匠部間の背面に背面遮光層を設けたものである。   Further, a back light-shielding layer is provided on the back surface between the design portions of the diffuse transmission member.

本発明によれば、初期の目的を達成でき、安価で、2つ以上の意匠部を近接配置しても意匠部の擬似点灯の発生を抑制することが可能な蛍光表示管を用いた表示装置を提供することができる。   According to the present invention, a display device using a fluorescent display tube that can achieve the initial purpose, is inexpensive, and can suppress the occurrence of pseudo-lighting of the design portion even when two or more design portions are arranged close to each other. Can be provided.

以下、図面に基づいて本発明による導光体を説明する。図1〜図3は、本発明の第1の実施形態を示すものである。   Hereinafter, a light guide according to the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of the present invention.

本発明の表示装置1は車両用で、蛍光表示管2と表示部材3とから構成されている。蛍光表示管2で車両の速度を数字で表示し、表示部材3で車両の状態、本実施形態では、車両の進行方向を指示する方向指示や、パーキングブレーキの作動状態及び前照灯のハイビームの作動状態を表示するものである。   The display device 1 according to the present invention is for a vehicle and includes a fluorescent display tube 2 and a display member 3. The speed of the vehicle is displayed numerically on the fluorescent display tube 2, and the direction of the vehicle is indicated on the display member 3, in this embodiment, the direction of the vehicle, the operating state of the parking brake, and the high beam of the headlamp. The operating state is displayed.

蛍光表示管2は、前面ガラス4と背面ガラス5を備えており、この2枚のガラス4、5の周囲をガラス6で囲んで密閉容器を形成している。この密閉容器内には、フィラメント7と、グリッド8と、アノード電極9と、このアノード電極9上に設けた蛍光体10と、絶縁層11及び配線12が収納されている。そして、背面ガラス5上に配線12が設けられ、この配線12上に、絶縁層11、アノード電極9、蛍光体10が積層されている。アノード電極9と配線12は、絶縁層11に設けたスルーホール13を介して接続している。また、配線12はリード14を介して外部の回路と接続されている。本実施例では、配線12は、金属製で光を通さない遮光性を備えており、蛍光表示管2の背面からの光の透過を防止するために、広い面積を備えている。また、配線12と絶縁層11には、表示部材3の意匠部を透過して表示するために、開口15a、15bが設けられている。   The fluorescent display tube 2 includes a front glass 4 and a back glass 5, and the two glasses 4 and 5 are surrounded by a glass 6 to form a sealed container. In this sealed container, a filament 7, a grid 8, an anode electrode 9, a phosphor 10 provided on the anode electrode 9, an insulating layer 11 and a wiring 12 are accommodated. A wiring 12 is provided on the back glass 5, and an insulating layer 11, an anode electrode 9, and a phosphor 10 are laminated on the wiring 12. The anode electrode 9 and the wiring 12 are connected through a through hole 13 provided in the insulating layer 11. Further, the wiring 12 is connected to an external circuit through a lead 14. In this embodiment, the wiring 12 is made of metal and has a light shielding property that does not transmit light, and has a large area in order to prevent light from being transmitted from the back surface of the fluorescent display tube 2. Further, openings 15 a and 15 b are provided in the wiring 12 and the insulating layer 11 in order to display through the design portion of the display member 3.

蛍光表示管2は、フィラメント7から電子が放出され、放出された電子が、グリッド8およびアノード電極11に印加したプラス電位に引き寄せられ加速され、加速された電子がアノード電極11に設けた蛍光体10に衝突し発光します。グリッド8およびアノード電極11に選択的に電位を印加することにより、本実施形態では、車両の速度を表示します。   The fluorescent display tube 2 emits electrons from the filament 7, and the emitted electrons are attracted and accelerated by the positive potential applied to the grid 8 and the anode electrode 11, and the accelerated electrons are provided on the anode electrode 11. 10 hits and emits light. In this embodiment, the vehicle speed is displayed by selectively applying a potential to the grid 8 and the anode electrode 11.

表示部材3は、前面に遮光層16で意匠部17を形成した拡散透過部材18と、意匠部17を透過照明する光源である発光ダイオード19とを備えている。拡散透過部材18は、光拡散用の微粒子を含んだ合成樹脂製からなり乳白色をしている。遮光層16は黒色インクを用いて印刷形成されたものである。意匠部17は、本実施例では、それぞれ車両の進行方向を指示する方向指示の意匠部17a、17bや、パーキングブレーキの作動状態の意匠部17c及び前照灯のハイビームの作動状態の意匠部17dを構成しており、それぞれの意匠部17a〜17dは、遮光層16を設けず拡散透過部材18が露出したネガ表示である。なお、本実施例では、方向指示の意匠部17bと、パーキングブレーキの意匠部17c及びハイビームの意匠部17dが近接し、蛍光表示管2の開口15bを通して表示するものである。また、方向指示の意匠部17aが開口15aを通して表示するものである。   The display member 3 includes a diffusing and transmissive member 18 having a design portion 17 formed of a light shielding layer 16 on the front surface, and a light emitting diode 19 as a light source that transmits and illuminates the design portion 17. The diffuse transmission member 18 is made of a synthetic resin containing fine particles for light diffusion and is milky white. The light shielding layer 16 is printed and formed using black ink. In the present embodiment, the design portion 17 is a direction-designated design portion 17a, 17b for designating the traveling direction of the vehicle, a design portion 17c in which the parking brake is activated, and a design portion 17d in which the high beam is activated for the headlamp. Each design portion 17a to 17d is a negative display in which the light-transmitting layer 18 is exposed without providing the light shielding layer 16. In this embodiment, the direction indicating design portion 17b, the parking brake design portion 17c, and the high beam design portion 17d are close to each other and display through the opening 15b of the fluorescent display tube 2. Further, the direction indicating design portion 17a displays through the opening 15a.

発光ダイオード19は、それぞれの意匠部17a〜17dによって発光色が異なり、方向指示の意匠部17a、17bは緑色の発光色で、パーキングブレーキの意匠部17cは赤色の発光色で、ハイビームの意匠部17dは青色の発光色である。なお、20は、白色の不透光性の合成樹脂からなるケースであり、21は、硬質の回路基板である。ケース20には、仕切壁22が形成されており、この仕切壁22によって、各意匠部17a〜17dに対応した照明室23が形成されている。   The light emitting diode 19 has a different emission color depending on the design portions 17a to 17d, the direction indicating design portions 17a and 17b have a green emission color, the parking brake design portion 17c has a red emission color, and a high beam design portion. 17d is a blue emission color. In addition, 20 is a case which consists of a white non-transparent synthetic resin, and 21 is a hard circuit board. A partition wall 22 is formed in the case 20, and an illumination chamber 23 corresponding to each design portion 17 a to 17 d is formed by the partition wall 22.

以上のように構成したことによって、例えば、ハイビームの意匠部17dが点灯した場合、光源19の光が近接した方向指示の意匠部17b側に放射されても、蛍光表示管2の配線12(絶縁層11)に開口を形成したことによって、方向指示の意匠部17b側に反射する部材がなく、背面ガラス20を通って方向指示の意匠部17bを照明することがなく、方向指示の意匠部17bの擬似点灯を抑えることができる。   With the above-described configuration, for example, when the high beam design portion 17d is turned on, the wiring 12 (insulation) of the fluorescent display tube 2 can be used even if the light from the light source 19 is radiated to the direction design portion 17b. By forming the opening in the layer 11), there is no member reflecting on the direction indicating design portion 17b side, and the direction indicating design portion 17b is not illuminated through the rear glass 20, and the direction indicating design portion 17b is not illuminated. Can be suppressed.

また、図3で示すように、方向指示の意匠部17bと、ハイビームの意匠部17dとの間で、拡散透過部材18の背面には、遮光性を有する黒色インクを用いて、印刷よって形成した背面遮光層24が形成されている。   Also, as shown in FIG. 3, the back surface of the diffuse transmission member 18 is formed by printing with a black ink having a light shielding property between the direction indicating design portion 17b and the high beam design portion 17d. A rear light shielding layer 24 is formed.

また、拡散透過部材18の背面に背面遮光層24を設けたことによって、例えば、同じく、ハイビームの意匠部17dが点灯した場合、光源19の光が近接した方向指示の意匠部17b側に放射されても、光が拡散透過部材18内に入る量を抑えるので、拡散透過部材18を通って方向指示の意匠部17bを照明することがなく、方向指示の意匠部17bの擬似点灯を抑えることができる。   Further, by providing the back light-shielding layer 24 on the back surface of the diffusing and transmitting member 18, for example, when the high beam design portion 17d is lit, the light from the light source 19 is radiated to the design direction portion 17b of the direction indication in the vicinity. However, since the amount of light entering the diffuse transmission member 18 is suppressed, the direction indicating design portion 17b is not illuminated through the diffuse transmission member 18, and the pseudo lighting of the direction indicating design portion 17b can be suppressed. it can.

本発明の第1の実施形態による表示装置の正面図。1 is a front view of a display device according to a first embodiment of the present invention. 図1のA−A線の断面図。Sectional drawing of the AA line of FIG. 図1のB−B線の断面図。Sectional drawing of the BB line of FIG. 従来の表示装置の正面図。The front view of the conventional display apparatus. 図4のC−C線の断面図。Sectional drawing of CC line of FIG.

符号の説明Explanation of symbols

1 表示装置
2 蛍光表示管
3 表示部材
4 前面ガラス
5 平面ガラス
6 ガラス
7 フィラメント
8 グリッド
9 アノード電極(電極)
10 蛍光体
11 絶縁層
12 配線
13 スルーホール
14 リード
15a、15b 開口
16 遮光層
17、17a〜17d 意匠部
18 拡散透過部材
19 光源(発光ダイオード)
20 ケース
21 回路基板
22 仕切壁
23 照明室
24 背面遮光層
DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Fluorescent display tube 3 Display member 4 Front glass 5 Flat glass 6 Glass 7 Filament 8 Grid 9 Anode electrode (electrode)
DESCRIPTION OF SYMBOLS 10 Phosphor 11 Insulating layer 12 Wiring 13 Through-hole 14 Lead | read | reed 15a, 15b Opening 16 Light shielding layer 17, 17a-17d Design part 18 Diffusing transparent member 19 Light source (light emitting diode)
20 Case 21 Circuit board 22 Partition wall 23 Lighting room 24 Back light shielding layer

Claims (3)

前面ガラスと背面ガラスとの周囲をガラスで囲んだ密閉容器を形成し、この密閉容器内にフィラメントと、グリッド、蛍光体を設けた電極とを収納するとともに前記背面ガラスに前記電極とに接続する配線を設けた蛍光表示管と、近接した2つ以上の意匠部を備えた拡散透過部材と前記意匠部を透過照明する光源とを備えた表示部材とを備え、前記近接した2つ以上の意匠部に対応した開口を前記配線に設け、前記表示部材を前記蛍光表示管の背後に設け、前記近接した2つ以上の意匠部を前記開口を通して表示することを特徴とする表示装置。 A sealed container is formed by surrounding the front glass and the rear glass with glass, and the filament, the grid, and the electrode provided with the phosphor are accommodated in the sealed container and connected to the electrode on the rear glass. A fluorescent display tube provided with wiring; a diffuser and transmissive member having two or more adjacent design portions; and a display member having a light source that transmits and illuminates the design portion; and the two or more adjacent designs An opening corresponding to a portion is provided in the wiring, the display member is provided behind the fluorescent display tube, and the two or more adjacent design portions are displayed through the opening. 前記意匠部を前記拡散透過部材の前面に設けた遮光層で形成したことを特徴とする請求項1に記載の表示装置。 The display device according to claim 1, wherein the design portion is formed of a light shielding layer provided on a front surface of the diffuse transmission member. 前記拡散透過部材の前記意匠部間の背面に背面遮光層を設けたことを特徴とする請求項1または2に記載の表示装置。 The display device according to claim 1, wherein a back light-shielding layer is provided on a back surface between the design portions of the diffuse transmission member.
JP2005022527A 2005-01-31 2005-01-31 Display device Expired - Fee Related JP4305665B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012008512A (en) * 2010-05-25 2012-01-12 Sekisui Jushi Co Ltd Display device and power feeding device for electric car using the same
JP2012099372A (en) * 2010-11-03 2012-05-24 Futaba Corp Fluorescent display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012008512A (en) * 2010-05-25 2012-01-12 Sekisui Jushi Co Ltd Display device and power feeding device for electric car using the same
JP2012099372A (en) * 2010-11-03 2012-05-24 Futaba Corp Fluorescent display device

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