JP2019045438A - Display device - Google Patents
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Abstract
Description
本開示は、所定方向に沿うように並んだ複数の発光素子を点灯させてバーグラフ表示をする表示装置に関する。 The present disclosure relates to a display device that displays a bar graph by lighting a plurality of light emitting elements aligned along a predetermined direction.
特許文献１には、所定方向に沿うように並んだ複数の発光素子を点灯させてバーグラフ表示する表示装置が開示されている。 Patent Document 1 discloses a display device for displaying a bar graph by lighting a plurality of light emitting elements arranged along a predetermined direction.
特許文献１に開示された表示装置においては、発光素子を含む各種電子部品を実装した回路基板を大型化させることなく、これら電子部品から発せられる熱を効率的に放熱、分散させることが望まれている。 In the display device disclosed in Patent Document 1, it is desirable that the heat generated from the electronic components be efficiently dissipated and dispersed without increasing the size of the circuit board on which various electronic components including the light emitting element are mounted. ing.
本開示は上述した要望に鑑みてなされたものであり、電子部品から発せられる熱を効率的に放熱、分散する表示装置を提供することを目的とする。 This indication is made in view of the demand mentioned above, and it aims at providing a display which thermally radiates and dissipates heat emitted from electronic parts efficiently.
本開示の表示装置は、
回転軸中心に回動する指針と、
前記指針が指示する指標目盛部と、曲線状に配置された複数のセグメント部を含むバーグラフ部と、が形成された表示板と、
前記バーグラフ部を照明する複数のバーグラフ用発光素子を有する回路基板と、を備え、
前記複数のバーグラフ用発光素子は、前記回転軸に向く一方側にアノード端子が向き、他方側にカソード端子が向いて、前記バーグラフ部に沿って並ぶ。
The display device of the present disclosure is
A pointer that rotates around the rotation axis,
A display board on which an indicator scale indicated by the pointer and a bar graph including a plurality of segments arranged in a curve are formed;
A circuit board having a plurality of bar graph light emitting elements for illuminating the bar graph portion;
The plurality of bar graph light emitting elements are arranged along the bar graph portion with the anode terminal directed to one side facing the rotation axis and the cathode terminal facing the other side.
本開示によれば、電子部品から発せられる熱を効率的に放熱、分散する表示装置を提供できる。 According to the present disclosure, it is possible to provide a display device that efficiently dissipates and dissipates the heat generated from the electronic component.
表示装置Ｍは、車両に搭載された計器であり、車両情報を表示する。表示装置Ｍは、表示板１と、表示板１を指示する指針２と、表示板１を照明する発光素子を有する回路基板３と、ライトボックス４０を有するケース体４と、を含む。 The display device M is an instrument mounted on a vehicle, and displays vehicle information. The display device M includes a display plate 1, a pointer 2 for pointing the display plate 1, a circuit board 3 having a light emitting element for illuminating the display plate 1, and a case 4 having a light box 40.
表示板１は、透明板状の樹脂基材１０の表面に透過意匠部（指標目盛部１１、警告灯部１２、バーグラフ部１３）が形成された文字板である。表示板１の透過意匠部が形成されていない表面箇所には、不透過意匠部１４が形成されている。指標目盛部１１は、指針２の回転軸ＡＸを取り巻く曲線状に配置されたエンジン回転数の指標目盛である。警告灯部１２は、エンジンシステム警告やオイル警告などの車両装備の警告を表す警告灯意匠であり、指標目盛部１１よりも指標目盛部１１の中心側に形成されている。バーグラフ部１３は、複数のセグメント部１３ａ〜１３ｄが指標目盛部１１と連なる曲線状に配置されたバーグラフ意匠である。言い換えると、回転軸ＡＸは、指標目盛部１１とバーグラフ部１３により取り囲まれ、指標目盛部１１とバーグラフ部１３で取り囲まれた領域内に警告灯部１２がある。 The display board 1 is a dial in which a transmission design part (index scale part 11, warning light part 12, bar graph part 13) is formed on the surface of a transparent plate-like resin base material 10. An opaque design portion 14 is formed on the surface of the display plate 1 where the transmissive design portion is not formed. The index scale unit 11 is an index scale of the engine rotational speed disposed in a curved shape surrounding the rotation axis AX of the pointer 2. The warning light portion 12 is a warning light design representing a warning of vehicle equipment such as an engine system warning or an oil warning, and is formed closer to the center of the index scale portion 11 than the index scale portion 11. The bar graph portion 13 is a bar graph design in which a plurality of segment portions 13 a to 13 d are arranged in a curved line connected to the index / mark portion 11. In other words, the rotation axis AX is surrounded by the index scale portion 11 and the bar graph portion 13, and the warning light portion 12 is in the area surrounded by the index scale portion 11 and the bar graph portion 13.
指針２は、指標目盛部１１の所定箇所を指示してエンジン回転数を表示する。 The pointer 2 indicates a predetermined position of the index scale 11 and displays the engine speed.
図２を参照する。回路基板３は、制御回路３０と、指針用発光素子ＬＤ３１ａと、指標目盛用発光素子ＬＤ３１ｂと、警告灯用発光素子ＬＤ３２と、バーグラフ用発光素子ＬＤ３３ａ〜３３ｅと、トランジスタＴＲ３３ａ〜ＴＲ３３ｅと、電流制限抵抗Ｒ３３ａ〜Ｒ３３ｅと、安定化電源回路３４と、を含む。 Please refer to FIG. The circuit board 3 includes a control circuit 30, a pointer light emitting element LD31a, an indicator tick light emitting element LD31b, a warning light light emitting element LD32, bar graph light emitting elements LD33a to 33e, transistors TR33a to TR33e, and current It includes limiting resistors R33a to R33e and a stabilized power supply circuit 34.
指針用発光素子ＬＤ３１ａと、指標目盛用発光素子ＬＤ３１ｂと、警告灯用発光素子ＬＤ３２と、バーグラフ用発光素子ＬＤ３３ａ〜３３ｅは、ＳＭＤ（Surface Mount Device）型ＬＥＤ（Light Emitting Diode）である。指針用発光素子ＬＤ３１ａと、指標目盛用発光素子ＬＤ３１ｂと、バーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｄは、白色ＬＥＤである。バーグラフ用発光素子ＬＤ３３ｅは、赤色ＬＥＤである。これら指針用発光素子ＬＤ３１ａと、指標目盛用発光素子ＬＤ３１ｂと、警告灯用発光素子ＬＤ３２と、バーグラフ用発光素子ＬＤ３３ａ〜３３ｅが点灯することにより、表示板１の透過意匠部（指標目盛部１１、警告灯部１２、バーグラフ部１３）が光輝する。 The pointer light emitting element LD31a, the index marking light emitting element LD31b, the warning light emitting element LD32, and the bar graph light emitting elements LD33a to 33e are SMD (surface mount device) type LEDs (light emitting diodes). The pointer light emitting element LD31a, the index marking light emitting element LD31b, and the bar graph light emitting elements LD33a to LD33d are white LEDs. The bar graph light emitting element LD33e is a red LED. When the pointer light emitting element LD31a, the indicator light emitting element LD31b, the warning light emitting element LD32, and the bar graph light emitting elements LD33a to 33e are turned on, the transmission design portion of the display plate 1 (index scale portion 11 , The warning light 12 and the bar graph 13) shine.
制御回路３０は、例えば、プロセッサ（例えば、CPU : Central Processing Unit）や、ＡＳＩＣ（Application Specific Integrated Circuit）、あるいはＦＰＧＡ（Field Programmable Gate Array）などの少なくとも１つを含む半導体集積回路である。制御回路３０には、外部の車載コントローラＥＣＵからエンジン回転数と警告情報と残燃料量を含む車両情報が入力される。 The control circuit 30 is, for example, a semiconductor integrated circuit including at least one of a processor (for example, a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), and the like. The control circuit 30 receives vehicle information including an engine speed, warning information, and a remaining fuel amount from an external on-board controller ECU.
制御回路３０は、安定化電源回路３４から電源が供給されて起動すると、指針用発光素子ＬＤ３１ａと指標目盛用発光素子ＬＤ３１ｂを点灯させて、指針２と指標目盛部１１を光輝させる。また、制御回路３０は、入力されたエンジン回転数に対応する指標目盛部１１の位置を指針２が指示するように回転制御する。これにより、エンジン回転数が表示される。 When power is supplied from the stabilized power supply circuit 34 to start up, the control circuit 30 causes the pointer light emitting element LD 31 a and the index graduation light emitting element LD 31 b to light, and causes the pointer 2 and the index scale 11 to glow. Further, the control circuit 30 performs rotation control such that the pointer 2 indicates the position of the index scale 11 corresponding to the input engine rotational speed. Thereby, the engine speed is displayed.
制御回路３０は、入力された警告情報に基づいて警告灯用発光素子ＬＤ３２を点灯／消灯する。警告灯用発光素子ＬＤ３２が点灯すると、警告灯部１２が光輝して、所定の警告が表示される。 The control circuit 30 turns on / off the warning light emitting element LD32 based on the input warning information. When the light emitting element LD 32 for warning light is lit, the warning light part 12 is illuminated and a predetermined warning is displayed.
制御回路３０は、トランジスタＴＲ３３ａ〜ＴＲ３３ｅをスイッチング制御することにより、バーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅを点灯／消灯して、残燃料量を表示する。図３に示すように、表示板１の裏面側（Ｂｋ側）にバーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅが配置されており、表示板１とバーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅの間には筒状のライトボックス４０が配置されている。バーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅが発した光は、ライトボックス４０に導かれて対応するセグメント部１３ａ〜１３ｄが光輝する。 The control circuit 30 performs switching control of the transistors TR33a to TR33e to turn on / off the bar graph light emitting elements LD33a to LD33e to display the remaining fuel amount. As shown in FIG. 3, bar graph light emitting elements LD33a to LD33e are disposed on the back surface side (Bk side) of the display panel 1, and a cylindrical shape is provided between the display panel 1 and the bar graph light emitting elements LD33a to LD33e. Light box 40 is disposed. The light emitted from the bar graph light emitting elements LD33a to LD33e is guided to the light box 40, and the corresponding segment portions 13a to 13d glow.
制御回路３０は、残燃料量が６０％以上のときに、トランジスタＴＲ３３ａをオンする。制御回路３０がトランジスタＴＲ３３ａをオンすると、車載バッテリＢＡＴの電圧（約１２Ｖ）が電流制限抵抗Ｒ３３ａにより約３Ｖに降圧されてバーグラフ用発光素子ＬＤ３３ａに供給され、バーグラフ用発光素子ＬＤ３３ａが点灯してセグメント部１３ａが白く光輝する。 The control circuit 30 turns on the transistor TR33a when the amount of remaining fuel is 60% or more. When the control circuit 30 turns on the transistor TR33a, the voltage (about 12 V) of the in-vehicle battery BAT is stepped down to about 3 V by the current limiting resistor R33a and supplied to the bar graph light emitting element LD33a, and the bar graph light emitting element LD33a lights up. Thus, the segment 13a glows white.
制御回路３０は、残燃料量が４０％以上のときに、トランジスタＴＲ３３ｂをオンする。制御回路３０がトランジスタＴＲ３３ｂをオンすると、車載バッテリＢＡＴの電源が電源制限抵抗Ｒ３３ｂを介してバーグラフ用発光素子ＬＤ３３ｂに供給され、バーグラフ用発光素子ＬＤ３３ｂが点灯してセグメント部１３ｂが白く光輝する。 The control circuit 30 turns on the transistor TR33b when the amount of remaining fuel is 40% or more. When the control circuit 30 turns on the transistor TR33b, the power supply of the on-board battery BAT is supplied to the bar graph light emitting element LD33b via the power supply limiting resistor R33b, and the bar graph light emitting element LD33b lights up and the segment portion 13b glows white. .
制御回路３０は、残燃料量が２０％以上のときに、トランジスタＴＲ３３ｃをオンする。制御回路３０がトランジスタＴＲ３３ｃをオンすると、車載バッテリＢＡＴの電源が電源制限抵抗Ｒ３３ｃを介してバーグラフ用発光素子ＬＤ３３ｃに供給され、バーグラフ用発光素子ＬＤ３３ｃが点灯してセグメント部１３ｃが白く光輝する。 The control circuit 30 turns on the transistor TR33c when the amount of remaining fuel is 20% or more. When the control circuit 30 turns on the transistor TR33c, the power supply of the in-vehicle battery BAT is supplied to the bar graph light emitting element LD33c via the power supply limiting resistor R33c, and the bar graph light emitting element LD33c lights up and the segment portion 13c glows white. .
制御回路３０は、残燃料量が１０％以上のときに、トランジスタＴＲ３３ｄをオンする。制御回路３０がトランジスタＴＲ３３ｄをオンすると、車載バッテリＢＡＴの電源が電源制限抵抗Ｒ３３ｄを介してバーグラフ用発光素子ＬＤ３３ｄに供給され、バーグラフ用発光素子ＬＤ３３ｄが点灯してセグメント部１３ｄが白く光輝する。 The control circuit 30 turns on the transistor TR33d when the amount of remaining fuel is 10% or more. When the control circuit 30 turns on the transistor TR33d, the power supply of the on-board battery BAT is supplied to the bar graph light emitting element LD33d via the power supply limiting resistor R33d, and the bar graph light emitting element LD33d lights up and the segment 13d glows white. .
制御回路３０は、残燃料量が１０％未満のときに、トランジスタＴＲ３３ｄをオフさせ、代わりにトランジスタＴＲ３３ｅをオンする。制御回路３０がトランジスタＴＲ３３ｅをオンさせると、車載バッテリＢＡＴの電源が電源制限抵抗Ｒ３３ｂを介してバーグラフ用発光素子ＬＤ３３ｅに供給され、バーグラフ用発光素子ＬＤ３３ｅが点灯して、バーグラフ用発光素子ＬＤ３３ｄが点灯したときとは異なり、セグメント部１３ｄが赤く光輝する。 When the remaining fuel amount is less than 10%, the control circuit 30 turns off the transistor TR33d, and turns on the transistor TR33e instead. When the control circuit 30 turns on the transistor TR33e, the power of the on-board battery BAT is supplied to the bar graph light emitting element LD33e via the power supply limiting resistor R33b, and the bar graph light emitting element LD33e lights up, and the bar graph light emitting element Unlike when the LD 33 d is turned on, the segment 13 d glows red.
図４に、回路基板３の表面（Ｆｒ側の面）に設けられた光源の位置関係を示す。 The positional relationship of the light source provided in FIG. 4 at the surface (surface at the side of Fr) of the circuit board 3 is shown.
指針用発光素子ＬＤ３１ａは、回路基板３に形成された指針２の回転軸ＡＸが通る貫通穴Ｈの周囲に配置されている。 The pointer light emitting element LD 31 a is disposed around the through hole H through which the rotation axis AX of the pointer 2 formed on the circuit board 3 passes.
指標目盛用発光素子ＬＤ３１ｂは、回路基板３の指標目盛部１１に対向する箇所（指標目盛部１１の直下）と貫通穴Ｈとの間に曲線状に並んで配置されている。 The indicator graduation light emitting element LD 31 b is arranged in a curved line between the through hole H and a portion (directly below the indicator graduation portion 11) facing the indicator graduation portion 11 of the circuit board 3.
警告灯用発光素子ＬＤ３２は、回路基板３の警告灯部１２に対向する箇所（警告灯部１２の直下）に配置されている。 The warning light emitting element LD 32 is disposed at a position facing the warning light portion 12 of the circuit board 3 (directly below the warning light portion 12).
バーグラフ用発光素子ＬＤ３３ａ〜３３ｅは、回路基板３のセグメント部１３ａ〜１３ｄに対向する箇所（セグメント部１３ａ〜１３ｄの直下）に曲線状に並んで配置されている。また、バーグラフ用発光素子ＬＤ３３ａ〜３３ｅは、アノード端子が回転軸ＡＸが通る貫通穴Ｈ側（一方側）に向き、貫通穴Ｈから遠ざかる方向（他方側）にカソード端子が向くように配置されている。このように配置することで、他の発光素子（針用発光素子ＬＤ３１ａと、指標目盛用発光素子ＬＤ３１ｂと、警告灯用発光素子ＬＤ３２）、他の発光素子に印加される電圧を制限する電流制限抵抗及びその配線が設けられる領域に阻害されることなく、アノード側配線Ａ３３よりもカソード側配線Ｋ３３ａ〜Ｋ３３ｅを広い面積で配線することが容易となる。 The bar graph light emitting elements LD 33 a to 33 e are arranged in a curved line at locations (directly below the segment portions 13 a to 13 d) facing the segment portions 13 a to 13 d of the circuit board 3. The bar graph light emitting elements LD33a to 33e are arranged such that the anode terminals face the through hole H side (one side) through which the rotation axis AX passes, and the cathode terminals face the direction away from the through hole H (the other side). ing. By arranging in this manner, current limitation is performed to limit the voltage applied to the other light emitting elements (the light emitting element LD31a for the needle, the light emitting element LD31b for the index scale, the light emitting element LD32 for the warning light) and the other light emitting elements. It becomes easy to wire the cathode side wires K33a to K33e in a wider area than the anode side wire A33 without being hindered by the resistance and the region where the wire is provided.
図５にバーグラフ用発光素子ＬＤ３３ａとその配線の断面図を示す。バーグラフ用発光素子ＬＤ３３ａは、ＬＥＤチップＣが設けられカソード端子となる金属製のリードフレームＬＦ１と、アノード端子となる他のリードフレームＬＦ２を、ボンディングワイヤＢＷで電気的に接続する構造となっている。リードフレームＬＦ１側にＬＥＤチップＣが設けられているため、ＬＥＤチップＣが発する熱はカソード端子側に伝わりやすい構造となっている。つまり、バーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅが発する熱を効率良く放熱、分散させるために、カソード側配線Ｋ３３ａ〜Ｋ３３ｅを広い面積で配線することが好ましい。また、バーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅのカソード側には、電流制限抵抗Ｒ３３ａ〜Ｒ３３ｅが接続されている。この電流制限抵抗Ｒ３３ａ〜Ｒ３３ｅは降圧させる電圧量に伴って発熱量が大きくなる。したがって、電流制限抵抗Ｒ３３ａ〜Ｒ３３ｅが発する熱を効率良く放熱、分散させるために、カソード側配線Ｋ３３ａ〜Ｋ３３ｅを広い面積で配線することが好ましい。 FIG. 5 shows a cross-sectional view of the bar graph light emitting element LD 33 a and its wiring. The bar graph light emitting element LD33a has a structure in which the LED chip C is provided and the metal lead frame LF1 serving as a cathode terminal and the other lead frame LF2 serving as an anode terminal are electrically connected by a bonding wire BW. There is. Since the LED chip C is provided on the lead frame LF1 side, the heat generated by the LED chip C is easily transmitted to the cathode terminal side. That is, in order to efficiently dissipate and dissipate the heat generated by the bar graph light emitting elements LD33a to LD33e, it is preferable to wire the cathode side wirings K33a to K33e in a wide area. Further, current limiting resistors R33a to R33e are connected to the cathode sides of the bar graph light emitting elements LD33a to LD33e. The current limiting resistors R33a to R33e generate a large amount of heat with the amount of voltage to be stepped down. Therefore, in order to efficiently dissipate and disperse the heat generated by the current limiting resistors R33a to R33e, it is preferable to wire the cathode side wires K33a to K33e in a wide area.
以上のように、本開示の表示装置Ｍは、回転軸ＡＸ中心に回動する指針２と、指針２が指示する指標目盛部１１と曲線状に配置された複数のセグメント部１３ａ〜１３ｄを含むバーグラフ部１３とが形成された表示板１と、バーグラフ部１３を照明する複数のバーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅを有する回路基板３と、を備える。そして、複数のバーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅは、回転軸ＡＸに向く一方側にアノード端子が向き、他方側にカソード端子が向いて、バーグラフ部１３に沿って並ぶ、ように構成した。
このように構成することで、アノード側配線Ａ３３よりもカソード側配線Ｋ３３ａ〜Ｋ３３ｅを広い面積で配線できるため、バーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅが発する熱を効率良く放熱、分散できる。
As described above, the display device M of the present disclosure includes the pointer 2 rotated about the rotation axis AX, the index scale 11 pointed by the pointer 2, and the plurality of segment portions 13a to 13d arranged in a curved shape. A display panel 1 on which a bar graph portion 13 is formed, and a circuit board 3 having a plurality of bar graph light emitting elements LD 33 a to LD 33 e for illuminating the bar graph portion 13 are provided. The plurality of bar graph light emitting elements LD33a to LD33e are configured such that the anode terminals face one side facing the rotation axis AX and the cathode terminals face the other side, and are arranged along the bar graph portion 13.
With this configuration, since the cathode side wirings K33a to K33e can be arranged in a wider area than the anode side wiring A33, the heat emitted from the bar graph light emitting elements LD33a to LD33e can be efficiently dissipated and dispersed.
また、本開示の表示装置Ｍの回路基板３は、バーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅのカソード端子と電気的に接続する電流制限抵抗Ｒ３３ａ〜Ｒ３３ｅをバーグラフ用発光素子ＬＤ３３ａ〜ＬＤ３３ｅよりも他方側（回転軸ＡＸに向かない側）に有する。
このように構成することで、電流制限抵抗Ｒ３３ａ〜Ｒ３３ｅが発する熱を効率良く放熱、分散できる。
Further, the circuit substrate 3 of the display device M of the present disclosure has the current limiting resistances R33a to R33e electrically connected to the cathode terminals of the bar graph light emitting elements LD33a to LD33 e on the other side than the bar graph light emitting elements LD33 a to LD33 e (The side not facing the rotation axis AX).
With this configuration, the heat generated by the current limiting resistors R33a to R33e can be efficiently dissipated and dispersed.
本開示の表示装置Ｍは、上述した実施形態によって限定されず、主旨に従う範囲で変更を加えてもよい。具体的には、例えば、指標目盛部１１は、エンジン回転数を表すものに限らず、車両の走行速度や水温や外気温などの様々な車両情報に適用してもよい。また、バーグラフ部１３は、残燃料量を表すものに限らず、様々な車両情報を表すものに適用してもよい。 The display device M of the present disclosure is not limited by the above-described embodiment, and may be modified within the scope of the subject matter. Specifically, for example, the index scale unit 11 may be applied to various vehicle information such as the traveling speed of the vehicle, the water temperature, and the outside air temperature without being limited to the one representing the engine rotational speed. Further, the bar graph unit 13 is not limited to the one representing the remaining fuel amount, and may be applied to one representing various vehicle information.
本開示の表示装置は、車両に搭載され、車両情報を表示する表示装置に好適である。 The display device of the present disclosure is suitable for a display device that is mounted on a vehicle and displays vehicle information.
Ｍ ：表示装置
１ ：表示板
１１ ：指標目盛部（透過意匠部）
１２ ：警告灯部（透過意匠部）
１３ ：バーグラフ部（透過意匠部）
１４ ：不透過意匠部
２ ：指針
３ ：回路基板
３０ ：制御回路
ＬＤ３１ａ ：指針用発光素子
ＬＤ３１ｂ ：指標目盛用発光素子
ＬＤ３２ ：警告灯用発光素子
ＬＤ３３ａ〜ＬＤ３３ｅ ：バーグラフ用発光素子
Ｒ３３ａ〜Ｒ３３ｅ ：電流制限抵抗
Ａ３３ ：アノード側配線
Ｋ３３ａ〜Ｋ３３ｅ ：カソード側配線
Ｈ ：貫通穴
ＡＸ ：回転軸
M: Display device 1: Display board 11: Index scale portion (transmission design portion)
12: Warning light (transmission design department)
13: Bar graph part (transmission design part)
14: opaque design part 2: pointer 3: circuit board 30: control circuit LD31a: light emitting device for pointer LD31b: light emitting device for index scale LD32: light emitting device for warning light LD33a to LD33e: light emitting device for bar graph R33a to R33e: Current limiting resistance A33: Anode side wiring K33a to K33e: Cathode side wiring H: Through hole AX: Rotary shaft
Claims (4)
前記指針が指示する指標目盛部と、曲線状に配置された複数のセグメント部を含むバーグラフ部と、が形成された表示板と、
前記バーグラフ部を照明する複数のバーグラフ用発光素子を有する回路基板と、を備え、
前記複数のバーグラフ用発光素子は、前記回転軸に向く一方側にアノード端子が向き、他方側にカソード端子が向いて、前記バーグラフ部に沿って並ぶ、
ことを特徴とする表示装置。 A pointer that rotates around the rotation axis,
A display board on which an indicator scale indicated by the pointer and a bar graph including a plurality of segments arranged in a curve are formed;
A circuit board having a plurality of bar graph light emitting elements for illuminating the bar graph portion;
The plurality of bar graph light emitting elements are arranged along the bar graph portion, with the anode terminal facing the one side facing the rotation axis and the cathode terminal facing the other side.
A display device characterized by
ことを特徴とする請求項１に記載の表示装置。 The display board is formed with a warning light part at a position closer to the rotation axis than the index scale part and the bar graph part.
The display device according to claim 1,
ことを特徴とする請求項１または請求項２に記載の表示装置。 The bar graph light emitting element is an SDM type LED,
The display device according to claim 1 or 2, characterized in that:
ことを特徴とする請求項１乃至３に記載の表示装置。 The circuit board has a current limiting resistor electrically connected to a cathode terminal of the bar graph light emitting element on the other side of the bar graph light emitting element.
The display device according to any one of claims 1 to 3, characterized in that:
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| JP2017171736A JP6953925B2 (en) | 2017-09-07 | 2017-09-07 | Display device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144750U (en) * | 1976-04-27 | 1977-11-02 | ||
| JPH0580706A (en) * | 1991-09-19 | 1993-04-02 | Nippondenso Co Ltd | Display device |
| JPH1026541A (en) * | 1996-07-10 | 1998-01-27 | Toyoda Gosei Co Ltd | Display device for automobile |
| JP2005043396A (en) * | 2003-07-22 | 2005-02-17 | Yamaha Corp | Parameter value display device |
| JP2009103614A (en) * | 2007-10-24 | 2009-05-14 | Yazaki Corp | Display |
| JP2012006436A (en) * | 2010-06-23 | 2012-01-12 | Yazaki Corp | Display device for hybrid vehicle |
| JP2013217714A (en) * | 2012-04-06 | 2013-10-24 | Nippon Seiki Co Ltd | Light emitting display device |
-
2017
- 2017-09-07 JP JP2017171736A patent/JP6953925B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144750U (en) * | 1976-04-27 | 1977-11-02 | ||
| JPH0580706A (en) * | 1991-09-19 | 1993-04-02 | Nippondenso Co Ltd | Display device |
| JPH1026541A (en) * | 1996-07-10 | 1998-01-27 | Toyoda Gosei Co Ltd | Display device for automobile |
| JP2005043396A (en) * | 2003-07-22 | 2005-02-17 | Yamaha Corp | Parameter value display device |
| JP2009103614A (en) * | 2007-10-24 | 2009-05-14 | Yazaki Corp | Display |
| JP2012006436A (en) * | 2010-06-23 | 2012-01-12 | Yazaki Corp | Display device for hybrid vehicle |
| JP2013217714A (en) * | 2012-04-06 | 2013-10-24 | Nippon Seiki Co Ltd | Light emitting display device |
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