WO2021049027A1 - Display device - Google Patents

Display device Download PDF

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Publication number
WO2021049027A1
WO2021049027A1 PCT/JP2019/036192 JP2019036192W WO2021049027A1 WO 2021049027 A1 WO2021049027 A1 WO 2021049027A1 JP 2019036192 W JP2019036192 W JP 2019036192W WO 2021049027 A1 WO2021049027 A1 WO 2021049027A1
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WO
WIPO (PCT)
Prior art keywords
light emitting
display surface
display device
substrate
light
Prior art date
Application number
PCT/JP2019/036192
Other languages
French (fr)
Japanese (ja)
Inventor
明日菜 大澤
恒史 岩政
章太郎 平光
崇浩 山谷
Original Assignee
三菱電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2020507141A priority Critical patent/JP6742553B1/en
Priority to PCT/JP2019/036192 priority patent/WO2021049027A1/en
Priority to DE112019007711.2T priority patent/DE112019007711T5/en
Priority to CN201980100157.2A priority patent/CN114365210A/en
Publication of WO2021049027A1 publication Critical patent/WO2021049027A1/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3023—Segmented electronic displays

Definitions

  • the present invention relates to a display device using a light emitting element.
  • a display device is used in which numbers, letters, figures, etc. are displayed on the outer surface of the housing by transmitting the light emitted from the light emitting element provided inside the housing through the holes formed in the housing. ing.
  • the entire outer surface of the housing through which light is transmitted and numbers, characters, figures, etc. are displayed is referred to as a display surface.
  • Patent Document 1 discloses a display device in which a substrate on which a light emitting element is mounted is provided inside a housing.
  • the light emitting element emits light with directivity in a direction perpendicular to the mounting surface.
  • the substrate is housed inside the housing so that the mounting surface is parallel to the display surface of the housing. With this configuration, light is emitted from the light emitting element toward the display surface.
  • the size of the mounting surface of the substrate is the size obtained by adding the area for mounting the electronic component to the area where the light emitting element is mounted. That is, the mounting surface of the substrate is formed larger than the region where the light emitting element is mounted.
  • the display surface since the substrate is housed inside the housing with the mounting surface parallel to the display surface, the display surface may be smaller than the mounting surface on which the light emitting element is mounted. There was a problem that it could not be done.
  • the present invention has been made in view of the above, and an object of the present invention is to obtain a display device capable of transmitting light to make the display surface on which numbers, characters, figures, etc. are displayed smaller.
  • the display device includes a plurality of first light emitting elements, a substrate having a first mounting surface on which the plurality of first light emitting elements are mounted, and external and internal components.
  • a housing having a display surface formed with a plurality of through holes and accommodating a substrate with the first mounting surface perpendicular to the display surface is provided.
  • the plurality of first light emitting elements are mounted on the first mounting surface in a direction in which light is emitted toward the holes.
  • the display device has an effect that the display surface on which numbers, characters, figures, etc. are displayed can be made smaller by transmitting light.
  • FIG. 1 Perspective view of the display device according to the first embodiment of the present invention.
  • FIG. 2 An exploded perspective view of the display device according to the first embodiment.
  • a partially enlarged perspective view of the A portion shown in FIG. Partially enlarged perspective view of the B part shown in FIG. FIG. 2 is an enlarged partially enlarged perspective view of the portion B shown in FIG. 2, showing a second mounting surface of the substrate.
  • FIG. 5 is a perspective view of the housing according to the first embodiment as viewed from the back of the display surface, and is an enlarged partial enlarged view of a portion where a convex portion is formed. It is a perspective view of the first wall, the second wall, and the substrate in the display device which concerns on the modification 1 of Embodiment 1, and is the figure which shows the state before inserting the substrate into a gap.
  • FIG. 5 is a cross-sectional view of the display device according to the second modification, which corresponds to a cross-sectional view taken along the line VIII-VIII shown in FIG.
  • FIG. 1 is a perspective view of a display device according to a first embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of the display device according to the first embodiment.
  • the display device 1 is, for example, a servo amplifier.
  • the display device 1 includes a housing 2, a substrate 3, and a display surface sheet 4.
  • the housing 2 is a box body that houses the substrate 3 inside.
  • One surface of the outer surface of the housing 2 is the display surface 21.
  • the display surface 21 has a rectangular shape.
  • the direction along the longitudinal direction of the display surface 21 is the vertical direction
  • the direction along the lateral direction of the display surface is the width direction.
  • the direction perpendicular to the vertical direction and the width direction is defined as the depth direction.
  • the concepts indicating directions such as up and down, width, and depth have been introduced for convenience of explanation, and the directions also change depending on the posture in which the display device 1 is used.
  • FIG. 3 is an enlarged partially enlarged perspective view of the A portion shown in FIG. 2.
  • a plurality of holes 22 penetrating the outside and the inside of the housing are formed on the display surface 21.
  • seven holes 22 are formed.
  • the seven holes 22 are formed in an arrangement capable of displaying seven segments with the light transmitted through the holes 22.
  • the substrate 3 has a first mounting surface 31 on which electronic components (not shown) are mounted.
  • the first mounting surface 31 of the substrate 3 has a quadrangular shape.
  • the substrate 3 is housed inside the housing 2 with the first mounting surface 31 perpendicular to the display surface 21 of the housing 2.
  • the substrate 3 is arranged at a position overlapping the region where the plurality of holes 22 are formed when viewed along the depth direction.
  • the back side of the first mounting surface 31 is the second mounting surface 32.
  • FIG. 4 is an enlarged partially enlarged perspective view of the B portion shown in FIG. 2.
  • a plurality of first light emitting elements 5 are mounted on the first mounting surface 31 of the substrate 3.
  • the plurality of first light emitting elements 5 are arranged vertically side by side along the side of the first mounting surface 31 closest to the display surface 21.
  • Each of the plurality of first light emitting elements 5 is arranged at a position overlapping with any of the plurality of holes 22 in the vertical direction when viewed along the depth direction.
  • Each of the plurality of first light emitting elements 5 is mounted on the first mounting surface 31 in a direction of emitting light toward the holes 22.
  • the first light emitting element 5 is, for example, a right angle type LED (Light Emitting Diode).
  • FIG. 5 is an enlarged partially enlarged perspective view of the portion B shown in FIG. 2, which shows the second mounting surface of the substrate.
  • a plurality of second light emitting elements 6 are mounted on the second mounting surface 32 of the substrate 3.
  • the plurality of second light emitting elements 6 are arranged vertically side by side along the side of the second mounting surface 32 closest to the display surface 21.
  • Each of the plurality of second light emitting elements 6 is arranged at a position overlapping with any of the plurality of holes 22 in the arrangement direction of the plurality of second light emitting elements 6.
  • Each of the plurality of second light emitting elements 6 is mounted on the second mounting surface 32 in a direction of emitting light toward the holes 22.
  • the second light emitting element 6 is, for example, a right angle type LED.
  • FIG. 6 is an enlarged partially enlarged perspective view of the C portion shown in FIG. 2.
  • the display surface sheet 4 is a sheet-like member that covers the display surface 21 of the housing 2.
  • a plurality of transmission portions 41 for transmitting light are formed in a portion overlapping the holes 22 formed in the display surface 21.
  • the transmissive portion 41 is made of a transparent or translucent material.
  • the display surface sheet 4 does not transmit light in a region other than the transmitting portion 41.
  • the entire display surface sheet 4 may be formed of a transparent or translucent material, and a region other than the transmissive portion 41 may be painted so that light is not transmitted in the region other than the transmissive portion 41.
  • the plurality of transmission portions 41 are provided in an arrangement capable of displaying 7 segments.
  • the transmission portion 41 having a shape extending in the vertical direction is referred to as a first transmission portion 41a
  • the transmission portion 41 having a shape extending in the width direction is referred to as a second transmission portion 41b.
  • the display surface sheet 4 is formed with four first transmission portions 41a and three second transmission portions 42b for 7-segment display.
  • FIG. 7 is a front view of the display device according to the first embodiment as viewed from the display surface side.
  • FIG. 8 is a cross-sectional view taken along the line VIII-VIII shown in FIG.
  • FIG. 9 is a cross-sectional view taken along the line IX-IX shown in FIG.
  • the convex portion 7 On the back surface 27, which is the back surface of the display surface 21 of the housing 2, a convex portion 7 projecting along the depth direction is formed in the region where the hole 22 is formed.
  • the convex portion 7 has a first wall 23, a second wall 24, and a connecting wall 26.
  • FIG. 10 is a view of the housing according to the first embodiment as viewed from the back of the display surface, and is a partially enlarged view of an enlarged portion where the convex portion is formed.
  • FIG. 11 is a perspective view of the housing according to the first embodiment as viewed from the back of the display surface, and is a partially enlarged perspective view of an enlarged portion where the convex portion is formed.
  • the first wall 23 extends from the periphery of the hole 22 toward the first light emitting element 5.
  • the first wall 23 covers a part of the area of the first mounting surface 31 of the substrate.
  • the first wall 23 separates the plurality of holes 22 from each other behind the display surface 21.
  • the first wall 23 forms a plurality of first accommodation chambers 28 that partition the plurality of first light emitting elements 5 from each other when viewed from the back surface 27 side.
  • one first light emitting element 5 is provided so as to overlap one first accommodation chamber 28.
  • Five first light emitting elements 5 are mounted on the first mounting surface 31. That is, five first storage chambers 28 are provided behind the display surface 21.
  • the second wall 24 extends from the periphery of the hole 22 toward the second light emitting element 6.
  • the second wall 24 covers a part of the area of the second mounting surface 32 of the substrate.
  • the second wall 24 separates the plurality of holes 22 from each other behind the display surface 21.
  • the second wall 24 forms a plurality of second accommodation chambers 29 that partition the plurality of second light emitting elements 6 from each other when viewed from the back surface 27 side.
  • one second light emitting element 6 is provided so as to overlap one second storage chamber 29.
  • Five second light emitting elements 6 are mounted on the second mounting surface 32. That is, five second storage chambers 29 are provided behind the display surface 21.
  • connection wall 26 connects the first wall 23 and the second wall 24.
  • the connecting wall 26 has a smaller amount of protrusion from the back surface 27 than the first wall 23 and the second wall 24. Therefore, a gap 25 is formed between the first wall 23 and the second wall 24.
  • the substrate 3 is positioned by inserting the end portion of the substrate 3 into the gap 25. That is, the gap 25 between the first wall 23 and the second wall 24 exerts the function of a positioning unit that positions the substrate 3 in the width direction.
  • the inserted substrate 3 comes into contact with the connection wall 26. That is, the connection wall 26 exerts the function of a positioning unit that positions the substrate 3 in the depth direction.
  • the first light emitting element 5 emits light toward the hole 22, and the second light emitting element 6 emits light toward the hole 22. Therefore, even if the substrate 3 is housed in the housing 2 with the first mounting surface 31 in a posture perpendicular to the display surface 21 of the housing 2, the light emitted from the first light emitting element 5 and the second light emitting element 6 is emitted. It can be directed to the hole 22 provided in the display surface 21.
  • the light emitted from the first light emitting element 5 and the second light emitting element 6 can be transmitted through the hole 22 and the transmissive portion 41 of the display surface sheet 4, and the display device 1 can perform the 7-segment display.
  • the desired transmitting portion 41 appear to be emitting light
  • a number from 0 to 9 is displayed on the display device. It can be displayed in 1.
  • the transmissive portion 41 appears to emit light in order to display numbers and the like is also simply referred to as the transmissive portion 41 emitting light, and the transmissive portion 41 does not appear to emit light. This is also simply referred to as the transmissive portion 41 not emitting light.
  • the display surface 21 on which the electronic components are mounted in addition to the first light emitting element 5 is not parallel to the display surface 21 but perpendicular to the display surface 21, the display surface 21 is placed on the first mounting surface 31. Can also be formed small. Further, even when the display surface 21 is reduced in size, an area on which other electronic components are mounted can be secured on the first mounting surface 31 that expands in the depth direction.
  • each of the plurality of first light emitting elements 5 is housed in the first storage chamber 28 and each of the plurality of second light emitting elements 6 is housed in the second storage chamber 29.
  • the first light emitting element 5 and the first light emitting element 5 and the first light emitting element 6 are housed in the second storage chamber 29. 2
  • Light from the light emitting element 6 is less likely to leak to other storage chambers. Therefore, it becomes difficult for light to leak to the transmitting portion 41 other than the transmitting portion 41 facing the first accommodating chamber 28 and the second accommodating chamber 29 in which the first light emitting element 5 and the second light emitting element 6 that emit light are housed.
  • the difference between the transmitting portion 41 that emits light and the transmitting portion 41 that does not emit light becomes clear, and the display on the display surface 21 can be made clearer. Since the substrate 3 inserted into the gap 25 between the first wall 23 and the second wall 24 also becomes a part of the wall surrounding the first accommodation chamber 28 and the second accommodation chamber 29, the substrate 3 The leakage of light to the transmissive portion 41 that does not emit light is suppressed.
  • the substrate 3 can be positioned by inserting the substrate 3 into the gap 25 provided between the first wall 23 and the second wall 24, the first light emitting element 5 and the second light emitting element 6 can be positioned. It is possible to prevent the display from becoming unclear due to insufficient light reaching the transmitting portion 41 due to the misalignment.
  • the positioning can be performed only by inserting the substrate 3 into the gap 25, it is not necessary to use a jig or the like for positioning the substrate 3. Since the substrate 3 can be easily positioned without using a jig or the like, the assemblability of the display device 1 can be improved.
  • the transmitting portion 41 of the display surface sheet 4 may be configured to diffuse light.
  • the incident surface of the transmitting portion 41 may be formed of a rough surface to diffuse light.
  • the transmitting portion 41 may be formed of a material that easily diffuses light. As a result, the entire transmissive portion 41 shines uniformly, and it is possible to obtain an easy-to-see display in which uneven brightness is suppressed.
  • the opposite surface of the display surface sheet 4 facing the display surface 21 of the housing 2 may be a half mirror.
  • the transmissive portion 41 that does not emit light can be visually recognized in the same manner as the other regions, and when it does not emit light, it can be made to appear that the transmissive portion 41 is not provided.
  • the first light emitting element 5 or the second light emitting element 6 is made to emit light, the light is transmitted through the half mirror, so that the transmitting portion 41 emits light. Therefore, it is possible to increase the difference in appearance between the light emitting portion and the non-light emitting portion of the transmissive portion 41.
  • the example in which the convex portion 7 is provided on the back surface 27 of the housing 2 is given, but the display device 1 in which the convex portion 7 is not provided may be used.
  • the convex portion 7 is not provided, some light leaks to the transmissive portion 41 that does not emit light due to the absence of the first wall 23 and the second wall 24, or there is no gap 25.
  • the substrate 3 if it takes some time to position the substrate 3, if the first mounting surface 31 is perpendicular to the display surface 21, the effect of forming the display surface 21 smaller than that of the first mounting surface 31 can be obtained. Can be done.
  • a protrusion is formed on one of the back surface 27 of the substrate 3 and the housing 2, and a recess is formed on the other side so that the protrusion fits into the recess.
  • the substrate 3 may be positioned.
  • the transmissive portion 41 is made to emit light and a number can be displayed in a 7-segment display.
  • the shape and arrangement of the transmissive portion 41 are not limited to this, and the transmissive portion 41 emits light.
  • the shape and arrangement may be such that figures and characters can be displayed.
  • FIG. 12 is a perspective view of the first wall, the second wall, and the substrate in the display device according to the first modification of the first embodiment, and is a diagram showing a state before the substrate is inserted into the gap.
  • FIG. 13 is a perspective view of the first wall, the second wall, and the substrate according to the first modification of the first embodiment, and is a diagram showing a state in which the substrate is inserted into the gap.
  • a notch 33 is formed in a region that is one side of the substrate 3 and is inserted into the gap 25.
  • the connecting wall 26 of the convex portion 7 fits into the notch 33.
  • positioning of the substrate 3 in the vertical direction is also performed by fitting the connection wall 26 into the notch 33. That is, by inserting the convex portion 7 into the substrate 3, the substrate 3 is positioned more accurately.
  • FIG. 14 is a partially enlarged view of a substrate in which the mounting portion of the first light emitting element in the display device according to the second modification of the first embodiment is enlarged.
  • the second modification two of the five first light emitting elements 5 mounted on the first mounting surface 31 are separated from the other first light emitting elements 5 from the display surface 21. It's different.
  • the distance D1 between the first light emitting element 5 that emits light toward the first transmissive portion 41a having a shape extending in the vertical direction and the display surface 21 Is larger than the distance D2 between the first light emitting element 5 and the display surface 21 that emits light toward the second transmitting portion 41b having a shape extending in the width direction.
  • FIG. 15 is a cross-sectional view of the display device according to the modified example 2, which corresponds to a cross-sectional view taken along the line VIII-VIII shown in FIG.
  • the first light emitting element 5 and the transmitting portion 41 are viewed along the vertical direction, the line perpendicular to the back surface 27 of the display surface 21 and the direction of light incident on the transmitting portion 41 from the first light emitting element 5
  • the angle formed by the lines along the line is defined as the incident angle ⁇ .
  • the incident angle ⁇ 1> the incident angle ⁇ 2 can be satisfied.
  • the incident angle ⁇ 2 can be made sharper, the unevenness of the brightness in the transmission portion 41 can be suppressed, and the display can be made easier to see.
  • FIG. 16 is a cross-sectional view taken along the line XVI-XVI shown in FIG.
  • FIG. 16 shows a cut-out view of the second transmission portion 41b having a shape extending in the width direction.
  • the distance D2 between the first light emitting element 5 that emits light toward the second transmission unit 41b and the display surface 21 is indicated as the first light emitting element 5 that emits light toward the first transmission unit 41a. It is smaller than the distance D1 from the surface 21.
  • the distance D4 between the incident position of the light from the first light emitting element 5 to the second transmitting portion 41b shown in FIG. 16 and the first light emitting element 5 in the width direction is the first light emitting element 5 shown in FIG. Since the incident position of the light from the first transmitting portion 41a to the first light emitting element 5 and the distance D3 in the width direction are smaller, the incident angle ⁇ 3 is unlikely to become blunt even if the distance D2 is smaller than the distance D1.
  • the second transmission element 5 is transmitted.
  • the unevenness of the brightness in the part 41b can be suppressed.
  • the second light emitting element 6 that emits light toward the first transmission unit 41a has a display surface 21 more than the second light emitting element 6 that emits light toward the second transmission unit 41b. It is provided at a position away from. More specifically, the first light emitting element 5 and the second light emitting element 6 are arranged at positions symmetrical with respect to the substrate 3.
  • the configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
  • 1 display device 2 housing, 3 substrate, 4 display surface sheet, 5 first light emitting element, 6 second light emitting element, 7 convex part, 21 display surface, 22 holes, 23 first wall, 24 second wall , 25 gap, 26 connection wall, 27 back surface, 28 1st accommodation chamber, 29 2nd accommodation chamber, 31 1st mounting surface, 32 2nd mounting surface, 33 notch, 41 transparent part, 41a 1st transparent part, 41b Second transparent part.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

A display device (1) comprises: a plurality of first light-emitting elements (5); a substrate (3) having a first mounting surface (31) on which the plurality of first light-emitting elements (5) are mounted; and a housing (2) having a display surface (21) in which a plurality of holes (22) are formed that pass from the outside to the inside, the first mounting surface (31) being set perpendicular to the display surface (21), and the housing (2) accommodating the substrate (3). The plurality of first light-emitting elements (5) are mounted on the first mounting surface (31) in an orientation so as to emit light toward the holes (22).

Description

表示装置Display device
　本発明は、発光素子を用いた表示装置に関する。 The present invention relates to a display device using a light emitting element.
　筐体の内部に設けられた発光素子から発せられる光を、筐体に形成された孔を透過させることで、筐体の外側面に数字、文字、図形等が表示される表示装置が用いられている。なお、以下の説明において、筐体の外側面のうち光を透過させて数字、文字、図形等が表示される面全体を表示面と呼ぶ。特許文献１には、実装面に発光素子が実装された基板が筐体の内部に設けられた表示装置が開示されている。この表示装置では、発光素子が、実装面に垂直な方向に指向性を持って発光する。また、実装面が筐体の表示面と平行となるように基板が筐体の内部に収容されている。この構成によって、表示面に向けて発光素子から光が発せられる。 A display device is used in which numbers, letters, figures, etc. are displayed on the outer surface of the housing by transmitting the light emitted from the light emitting element provided inside the housing through the holes formed in the housing. ing. In the following description, the entire outer surface of the housing through which light is transmitted and numbers, characters, figures, etc. are displayed is referred to as a display surface. Patent Document 1 discloses a display device in which a substrate on which a light emitting element is mounted is provided inside a housing. In this display device, the light emitting element emits light with directivity in a direction perpendicular to the mounting surface. Further, the substrate is housed inside the housing so that the mounting surface is parallel to the display surface of the housing. With this configuration, light is emitted from the light emitting element toward the display surface.
特開２００８－０２６３８５号公報Japanese Unexamined Patent Publication No. 2008-0263885
　発光素子が実装された実装面には、発光素子以外の電子部品が実装される。基板の実装面の大きさは、発光素子が実装される領域に、電子部品を実装する領域を加えた大きさとなる。すなわち、基板の実装面は、発光素子が実装される領域よりも大きく形成される。特許文献１に開示された表示装置では、実装面を表示面と平行にして基板を筐体の内部に収容しているため、発光素子が実装される実装面よりも表示面を小さくすることができない、という問題があった。 Electronic components other than the light emitting element are mounted on the mounting surface on which the light emitting element is mounted. The size of the mounting surface of the substrate is the size obtained by adding the area for mounting the electronic component to the area where the light emitting element is mounted. That is, the mounting surface of the substrate is formed larger than the region where the light emitting element is mounted. In the display device disclosed in Patent Document 1, since the substrate is housed inside the housing with the mounting surface parallel to the display surface, the display surface may be smaller than the mounting surface on which the light emitting element is mounted. There was a problem that it could not be done.
　本発明は、上記に鑑みてなされたものであって、光を透過させて数字、文字、図形等が表示される表示面をより小さくすることができる表示装置を得ることを目的とする。 The present invention has been made in view of the above, and an object of the present invention is to obtain a display device capable of transmitting light to make the display surface on which numbers, characters, figures, etc. are displayed smaller.
　上述した課題を解決し、目的を達成するために、表示装置は、複数の第１発光素子と、複数の第１発光素子が実装された第１実装面を有する基板と、外部と内部とを貫通する複数の孔が形成された表示面を有し、第１実装面を表示面と垂直にして基板を収容する筐体と、を備える。複数の第１発光素子は、孔に向けて発光する向きで第１実装面に実装されている。 In order to solve the above-mentioned problems and achieve the object, the display device includes a plurality of first light emitting elements, a substrate having a first mounting surface on which the plurality of first light emitting elements are mounted, and external and internal components. A housing having a display surface formed with a plurality of through holes and accommodating a substrate with the first mounting surface perpendicular to the display surface is provided. The plurality of first light emitting elements are mounted on the first mounting surface in a direction in which light is emitted toward the holes.
　本発明にかかる表示装置は、光を透過させて数字、文字、図形等が表示される表示面をより小さくすることができるという効果を奏する。 The display device according to the present invention has an effect that the display surface on which numbers, characters, figures, etc. are displayed can be made smaller by transmitting light.
本発明の実施の形態１にかかる表示装置の斜視図Perspective view of the display device according to the first embodiment of the present invention. 実施の形態１にかかる表示装置の分解斜視図An exploded perspective view of the display device according to the first embodiment. 図２に示すＡ部分を拡大した部分拡大斜視図A partially enlarged perspective view of the A portion shown in FIG. 図２に示すＢ部分を拡大した部分拡大斜視図Partially enlarged perspective view of the B part shown in FIG. 図２に示すＢ部分を拡大した部分拡大斜視図であって、基板の第２実装面を示す図FIG. 2 is an enlarged partially enlarged perspective view of the portion B shown in FIG. 2, showing a second mounting surface of the substrate. 図２に示すＣ部分を拡大した部分拡大斜視図Partially enlarged perspective view of the C part shown in FIG. 実施の形態１にかかる表示装置を表示面側から見た正面図Front view of the display device according to the first embodiment as viewed from the display surface side. 図７に示すＶＩＩＩ－ＶＩＩＩ線に沿った矢視断面図Cross-sectional view taken along the line VIII-VIII shown in FIG. 図８に示すＩＸ－ＩＸ線に沿った矢視断面図Cross-sectional view taken along the line IX-IX shown in FIG. 実施の形態１における筐体を表示面の裏から見た図であって、凸部が形成された部分を拡大した部分拡大斜視図It is a view of the housing in Embodiment 1 from the back of the display surface, and is the partially enlarged perspective view which enlarged the part where the convex part was formed. 実施の形態１における筐体を表示面の裏から見た斜視図であって、凸部が形成された部分を拡大した部分拡大図FIG. 5 is a perspective view of the housing according to the first embodiment as viewed from the back of the display surface, and is an enlarged partial enlarged view of a portion where a convex portion is formed. 実施の形態１の変形例１にかかる表示装置における第１の壁、第２の壁、および基板の斜視図であり、隙間に基板を差し込む前の状態を示す図It is a perspective view of the first wall, the second wall, and the substrate in the display device which concerns on the modification 1 of Embodiment 1, and is the figure which shows the state before inserting the substrate into a gap. 実施の形態１の変形例１にかかる第１の壁、第２の壁、および基板の斜視図であり、隙間に基板が差し込まれた状態を示す図It is a perspective view of the first wall, the second wall, and the substrate which concerns on the modification 1 of Embodiment 1, and is the figure which shows the state which the substrate is inserted in the gap. 実施の形態１の変形例２にかかる表示装置における第１発光素子の実装部分を拡大した基板の部分拡大図Partial enlarged view of the substrate in which the mounting portion of the first light emitting element in the display device according to the second modification of the first embodiment is enlarged. 変形例２にかかる表示装置の断面図であって、図７に示すＶＩＩＩ－ＶＩＩＩ線で切断した矢視断面図に相当する図FIG. 5 is a cross-sectional view of the display device according to the second modification, which corresponds to a cross-sectional view taken along the line VIII-VIII shown in FIG. 図７に示すＸＶＩ－ＸＶＩ線に沿って切断した矢視断面図Cross-sectional view taken along the line XVI-XVI shown in FIG.
　以下に、本発明の実施の形態にかかる表示装置を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。 Hereinafter, the display device according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.
実施の形態１．
　図１は、本発明の実施の形態１にかかる表示装置の斜視図である。図２は、実施の形態１にかかる表示装置の分解斜視図である。表示装置１は、例えばサーボアンプである。表示装置１は、筐体２、基板３、表示面シート４を備える。筐体２は、基板３を内部に収容する箱体である。筐体２は、外側面の一面が表示面２１となっている。本実施の形態１では、表示面２１は長方形形状である。以下の説明では、表示面２１の長手方向に沿った方向を上下方向とし、表示面の短手方向に沿った方向を幅方向とする。また、上下方向および幅方向に垂直な方向を奥行き方向とする。なお、上下、幅、奥行きといった方向を示す概念は、説明の便宜のために導入したものであり、表示装置１が用いられる姿勢に応じて、その方向も変化する。 Embodiment 1.
FIG. 1 is a perspective view of a display device according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the display device according to the first embodiment. The display device 1 is, for example, a servo amplifier. The display device 1 includes a housing 2, a substrate 3, and a display surface sheet 4. The housing 2 is a box body that houses the substrate 3 inside. One surface of the outer surface of the housing 2 is the display surface 21. In the first embodiment, the display surface 21 has a rectangular shape. In the following description, the direction along the longitudinal direction of the display surface 21 is the vertical direction, and the direction along the lateral direction of the display surface is the width direction. Further, the direction perpendicular to the vertical direction and the width direction is defined as the depth direction. The concepts indicating directions such as up and down, width, and depth have been introduced for convenience of explanation, and the directions also change depending on the posture in which the display device 1 is used.
　図３は、図２に示すＡ部分を拡大した部分拡大斜視図である。表示面２１には、筐体の外部と内部とを貫通する複数の孔２２が形成されている。本実施の形態１では、７個の孔２２が形成されている。７個の孔２２は、孔２２を透過した光で７セグメント表示が可能な配置で形成されている。 FIG. 3 is an enlarged partially enlarged perspective view of the A portion shown in FIG. 2. A plurality of holes 22 penetrating the outside and the inside of the housing are formed on the display surface 21. In the first embodiment, seven holes 22 are formed. The seven holes 22 are formed in an arrangement capable of displaying seven segments with the light transmitted through the holes 22.
　図２に戻って、基板３の構成について説明する。基板３は、図示を省略した電子部品が実装される第１実装面３１を有する。基板３の第１実装面３１は四角形形状である。基板３は、第１実装面３１を筐体２の表示面２１に垂直にして、筐体２の内部に収容されている。基板３は、奥行き方向に沿って見た場合に、複数の孔２２が形成された領域と重なる位置に配置されている。なお、第１実装面３１の裏側は、第２実装面３２となっている。 Returning to FIG. 2, the configuration of the substrate 3 will be described. The substrate 3 has a first mounting surface 31 on which electronic components (not shown) are mounted. The first mounting surface 31 of the substrate 3 has a quadrangular shape. The substrate 3 is housed inside the housing 2 with the first mounting surface 31 perpendicular to the display surface 21 of the housing 2. The substrate 3 is arranged at a position overlapping the region where the plurality of holes 22 are formed when viewed along the depth direction. The back side of the first mounting surface 31 is the second mounting surface 32.
　図４は、図２に示すＢ部分を拡大した部分拡大斜視図である。基板３の第１実装面３１には、複数の第１発光素子５が実装されている。複数の第１発光素子５は、第１実装面３１のうち最も表示面２１に近い辺に沿って上下に並べて配置されている。複数の第１発光素子５のそれぞれは、奥行き方向に沿って見た場合に、上下方向において複数の孔２２のいずれかと重なる位置に配置されている。 FIG. 4 is an enlarged partially enlarged perspective view of the B portion shown in FIG. 2. A plurality of first light emitting elements 5 are mounted on the first mounting surface 31 of the substrate 3. The plurality of first light emitting elements 5 are arranged vertically side by side along the side of the first mounting surface 31 closest to the display surface 21. Each of the plurality of first light emitting elements 5 is arranged at a position overlapping with any of the plurality of holes 22 in the vertical direction when viewed along the depth direction.
　複数の第１発光素子５のそれぞれは、孔２２に向けて発光する向きで第１実装面３１に実装されている。第１発光素子５は、例えばライトアングルタイプのＬＥＤ（Ｌｉｇｈｔ　Ｅｍｉｔｔｉｎｇ　Ｄｉｏｄｅ）である。 Each of the plurality of first light emitting elements 5 is mounted on the first mounting surface 31 in a direction of emitting light toward the holes 22. The first light emitting element 5 is, for example, a right angle type LED (Light Emitting Diode).
　図５は、図２に示すＢ部分を拡大した部分拡大斜視図であって、基板の第２実装面を示す図である。基板３の第２実装面３２には、複数の第２発光素子６が実装されている。複数の第２発光素子６は、第２実装面３２のうち最も表示面２１に近い辺に沿って上下に並べて配置されている。複数の第２発光素子６のそれぞれは、複数の第２発光素子６の配列方向において複数の孔２２のいずれかと重なる位置に配置されている。 FIG. 5 is an enlarged partially enlarged perspective view of the portion B shown in FIG. 2, which shows the second mounting surface of the substrate. A plurality of second light emitting elements 6 are mounted on the second mounting surface 32 of the substrate 3. The plurality of second light emitting elements 6 are arranged vertically side by side along the side of the second mounting surface 32 closest to the display surface 21. Each of the plurality of second light emitting elements 6 is arranged at a position overlapping with any of the plurality of holes 22 in the arrangement direction of the plurality of second light emitting elements 6.
　複数の第２発光素子６のそれぞれは、孔２２に向けて発光する向きで第２実装面３２に実装されている。第２発光素子６は、例えばライトアングルタイプのＬＥＤである。 Each of the plurality of second light emitting elements 6 is mounted on the second mounting surface 32 in a direction of emitting light toward the holes 22. The second light emitting element 6 is, for example, a right angle type LED.
　図６は、図２に示すＣ部分を拡大した部分拡大斜視図である。表示面シート４は、筐体２の表示面２１を覆うシート状の部材である。表示面シート４は、表示面２１に形成された孔２２と重なる部分に、光を透過させる複数の透過部４１が形成されている。透過部４１は、透明または半透明の材料で形成されている。表示面シート４は、透過部４１以外の領域では光を透過させない。例えば、表示面シート４の全体を透明または半透明な材料で形成し、透過部４１以外の領域を塗装して、透過部４１以外の領域では光を透過させないようにしてもよい。複数の透過部４１は、複数の孔２２の配置と同様に、７セグメント表示が可能な配置で設けられている。以下の説明において、複数の透過部４１のうち上下方向に延びる形状の透過部４１を第１透過部４１ａとし、幅方向に延びる形状の透過部４１を第２透過部４１ｂとする。表示面シート４には、７セグメント表示を行うために、４つの第１透過部４１ａと、３つの第２透過部４２ｂが形成されている。 FIG. 6 is an enlarged partially enlarged perspective view of the C portion shown in FIG. 2. The display surface sheet 4 is a sheet-like member that covers the display surface 21 of the housing 2. In the display surface sheet 4, a plurality of transmission portions 41 for transmitting light are formed in a portion overlapping the holes 22 formed in the display surface 21. The transmissive portion 41 is made of a transparent or translucent material. The display surface sheet 4 does not transmit light in a region other than the transmitting portion 41. For example, the entire display surface sheet 4 may be formed of a transparent or translucent material, and a region other than the transmissive portion 41 may be painted so that light is not transmitted in the region other than the transmissive portion 41. Similar to the arrangement of the plurality of holes 22, the plurality of transmission portions 41 are provided in an arrangement capable of displaying 7 segments. In the following description, among the plurality of transmission portions 41, the transmission portion 41 having a shape extending in the vertical direction is referred to as a first transmission portion 41a, and the transmission portion 41 having a shape extending in the width direction is referred to as a second transmission portion 41b. The display surface sheet 4 is formed with four first transmission portions 41a and three second transmission portions 42b for 7-segment display.
　図７は、実施の形態１にかかる表示装置を表示面側から見た正面図である。図８は、図７に示すＶＩＩＩ－ＶＩＩＩ線に沿った矢視断面図である。図９は、図８に示すＩＸ－ＩＸ線に沿った矢視断面図である。 FIG. 7 is a front view of the display device according to the first embodiment as viewed from the display surface side. FIG. 8 is a cross-sectional view taken along the line VIII-VIII shown in FIG. FIG. 9 is a cross-sectional view taken along the line IX-IX shown in FIG.
　筐体２の表示面２１の裏となる裏面２７には、孔２２が形成された領域に、奥行き方向に沿って突出する凸部７が形成されている。凸部７は、第１の壁２３と第２の壁２４と接続壁２６とを有する。 On the back surface 27, which is the back surface of the display surface 21 of the housing 2, a convex portion 7 projecting along the depth direction is formed in the region where the hole 22 is formed. The convex portion 7 has a first wall 23, a second wall 24, and a connecting wall 26.
　図１０は、実施の形態１における筐体を表示面の裏から見た図であって、凸部が形成された部分を拡大した部分拡大図である。図１１は、実施の形態１における筐体を表示面の裏から見た斜視図であって、凸部が形成された部分を拡大した部分拡大斜視図である。 FIG. 10 is a view of the housing according to the first embodiment as viewed from the back of the display surface, and is a partially enlarged view of an enlarged portion where the convex portion is formed. FIG. 11 is a perspective view of the housing according to the first embodiment as viewed from the back of the display surface, and is a partially enlarged perspective view of an enlarged portion where the convex portion is formed.
　第１の壁２３は、孔２２の周囲から第１発光素子５に向けて延びている。第１の壁２３は、基板の第１実装面３１の一部の領域を覆う。第１の壁２３は、表示面２１の裏で複数の孔２２同士の間を区切っている。図９に示すように、第１の壁２３は、裏面２７側から見た場合に、複数の第１発光素子５同士の間を区切る複数の第１収容室２８を形成する。本実施の形態１では、１つの第１収容室２８に１個の第１発光素子５が重なるように設けられている。第１実装面３１には、５個の第１発光素子５が実装されている。すなわち、表示面２１の裏には、第１収容室２８が５個設けられている。 The first wall 23 extends from the periphery of the hole 22 toward the first light emitting element 5. The first wall 23 covers a part of the area of the first mounting surface 31 of the substrate. The first wall 23 separates the plurality of holes 22 from each other behind the display surface 21. As shown in FIG. 9, the first wall 23 forms a plurality of first accommodation chambers 28 that partition the plurality of first light emitting elements 5 from each other when viewed from the back surface 27 side. In the first embodiment, one first light emitting element 5 is provided so as to overlap one first accommodation chamber 28. Five first light emitting elements 5 are mounted on the first mounting surface 31. That is, five first storage chambers 28 are provided behind the display surface 21.
　第２の壁２４は、孔２２の周囲から第２発光素子６に向けて延びている。第２の壁２４は、基板の第２実装面３２の一部の領域を覆う。第２の壁２４は、表示面２１の裏で複数の孔２２同士の間を区切っている。図９に示すように、第２の壁２４は、裏面２７側から見た場合に、複数の第２発光素子６同士の間を区切る複数の第２収容室２９を形成する。本実施の形態１では、１つの第２収容室２９に１個の第２発光素子６が重なるように設けられている。第２実装面３２には、５個の第２発光素子６が実装されている。すなわち、表示面２１の裏には、第２収容室２９が５個設けられている。 The second wall 24 extends from the periphery of the hole 22 toward the second light emitting element 6. The second wall 24 covers a part of the area of the second mounting surface 32 of the substrate. The second wall 24 separates the plurality of holes 22 from each other behind the display surface 21. As shown in FIG. 9, the second wall 24 forms a plurality of second accommodation chambers 29 that partition the plurality of second light emitting elements 6 from each other when viewed from the back surface 27 side. In the first embodiment, one second light emitting element 6 is provided so as to overlap one second storage chamber 29. Five second light emitting elements 6 are mounted on the second mounting surface 32. That is, five second storage chambers 29 are provided behind the display surface 21.
　接続壁２６は、第１の壁２３と第２の壁２４とを接続する。接続壁２６は、第１の壁２３および第２の壁２４よりも裏面２７からの突出量が小さい。そのため、第１の壁２３と第２の壁２４との間には隙間２５が形成される。 The connection wall 26 connects the first wall 23 and the second wall 24. The connecting wall 26 has a smaller amount of protrusion from the back surface 27 than the first wall 23 and the second wall 24. Therefore, a gap 25 is formed between the first wall 23 and the second wall 24.
　隙間２５に基板３の端部が差し込まれることで、基板３が位置決めされる。すなわち、第１の壁２３と第２の壁２４との間の隙間２５は、基板３を幅方向に位置決めする位置決め部の機能を発揮する。差し込まれた基板３は、接続壁２６に当接する。すなわち、接続壁２６は、基板３を奥行き方向に位置決めする位置決め部の機能を発揮する。 The substrate 3 is positioned by inserting the end portion of the substrate 3 into the gap 25. That is, the gap 25 between the first wall 23 and the second wall 24 exerts the function of a positioning unit that positions the substrate 3 in the width direction. The inserted substrate 3 comes into contact with the connection wall 26. That is, the connection wall 26 exerts the function of a positioning unit that positions the substrate 3 in the depth direction.
　本実施の形態１にかかる表示装置１では、第１発光素子５が孔２２に向けて発光し、第２発光素子６が孔２２に向けて発光する。そのため、第１実装面３１を筐体２の表示面２１と垂直な姿勢にして基板３を筐体２内に収容しても、第１発光素子５および第２発光素子６から発せられる光を表示面２１に設けられた孔２２に向けることができる。 In the display device 1 according to the first embodiment, the first light emitting element 5 emits light toward the hole 22, and the second light emitting element 6 emits light toward the hole 22. Therefore, even if the substrate 3 is housed in the housing 2 with the first mounting surface 31 in a posture perpendicular to the display surface 21 of the housing 2, the light emitted from the first light emitting element 5 and the second light emitting element 6 is emitted. It can be directed to the hole 22 provided in the display surface 21.
　したがって、第１発光素子５および第２発光素子６から発せられる光を、孔２２および表示面シート４の透過部４１に透過させて、表示装置１に７セグメント表示を行わせることができる。この際、第１発光素子５および第２発光素子６のうち発光する発光素子を異ならせることで、所望の透過部４１が発光しているように見せて、例えば０から９の数字を表示装置１に表示させることができる。以下の説明では、数字等を表示させるために透過部４１が発光しているように見えることを、単に透過部４１が発光しているともいい、透過部４１が発光しているように見えないことを、単に透過部４１が発光していないともいう。 Therefore, the light emitted from the first light emitting element 5 and the second light emitting element 6 can be transmitted through the hole 22 and the transmissive portion 41 of the display surface sheet 4, and the display device 1 can perform the 7-segment display. At this time, by differentiating the light emitting elements of the first light emitting element 5 and the second light emitting element 6 to make the desired transmitting portion 41 appear to be emitting light, for example, a number from 0 to 9 is displayed on the display device. It can be displayed in 1. In the following description, the fact that the transmissive portion 41 appears to emit light in order to display numbers and the like is also simply referred to as the transmissive portion 41 emitting light, and the transmissive portion 41 does not appear to emit light. This is also simply referred to as the transmissive portion 41 not emitting light.
　また、第１発光素子５の他に電子部品が実装される第１実装面３１が表示面２１と平行ではなく表示面２１と垂直になっているので、表示面２１を第１実装面３１よりも小さく形成することができる。また、表示面２１の縮小化を図った場合であっても、他の電子部品が実装される領域を、奥行き方向に広がる第１実装面３１に確保することができる。 Further, since the first mounting surface 31 on which the electronic components are mounted in addition to the first light emitting element 5 is not parallel to the display surface 21 but perpendicular to the display surface 21, the display surface 21 is placed on the first mounting surface 31. Can also be formed small. Further, even when the display surface 21 is reduced in size, an area on which other electronic components are mounted can be secured on the first mounting surface 31 that expands in the depth direction.
　また、複数の第１発光素子５のそれぞれが第１収容室２８に収められ、複数の第２発光素子６のそれぞれが第２収容室２９に収められているので、第１発光素子５および第２発光素子６からの光が、他の収容室に漏れにくくなっている。したがって、発光した第１発光素子５および第２発光素子６が収められた第１収容室２８および第２収容室２９に面している透過部４１以外の透過部４１に光が漏れにくくなる。したがって、発光している透過部４１と、発光していない透過部４１との違いが明確になり、表示面２１の表示をより鮮明にすることができる。なお、第１の壁２３と第２の壁２４との間の隙間２５に差し込まれた基板３も、第１収容室２８および第２収容室２９を囲む壁の一部となるため、基板３によっても発光していない透過部４１への光の漏れが抑制される。 Further, since each of the plurality of first light emitting elements 5 is housed in the first storage chamber 28 and each of the plurality of second light emitting elements 6 is housed in the second storage chamber 29, the first light emitting element 5 and the first light emitting element 5 and the first light emitting element 6 are housed in the second storage chamber 29. 2 Light from the light emitting element 6 is less likely to leak to other storage chambers. Therefore, it becomes difficult for light to leak to the transmitting portion 41 other than the transmitting portion 41 facing the first accommodating chamber 28 and the second accommodating chamber 29 in which the first light emitting element 5 and the second light emitting element 6 that emit light are housed. Therefore, the difference between the transmitting portion 41 that emits light and the transmitting portion 41 that does not emit light becomes clear, and the display on the display surface 21 can be made clearer. Since the substrate 3 inserted into the gap 25 between the first wall 23 and the second wall 24 also becomes a part of the wall surrounding the first accommodation chamber 28 and the second accommodation chamber 29, the substrate 3 The leakage of light to the transmissive portion 41 that does not emit light is suppressed.
　また、第１の壁２３と第２の壁２４との間に設けられた隙間２５に基板３を差し込んで基板３を位置決めすることができるので、第１発光素子５および第２発光素子６の位置ずれによって、透過部４１に十分に光が到達せず表示が不鮮明になってしまうようなことを防ぐことができる。 Further, since the substrate 3 can be positioned by inserting the substrate 3 into the gap 25 provided between the first wall 23 and the second wall 24, the first light emitting element 5 and the second light emitting element 6 can be positioned. It is possible to prevent the display from becoming unclear due to insufficient light reaching the transmitting portion 41 due to the misalignment.
　また、隙間２５に基板３を差し込むだけで位置決めできるので、基板３の位置決めのために冶具等を用いる必要がない。冶具等を用いずに基板３の位置決めを容易に行うことができるので、表示装置１の組立性の向上を図ることができる。 Further, since the positioning can be performed only by inserting the substrate 3 into the gap 25, it is not necessary to use a jig or the like for positioning the substrate 3. Since the substrate 3 can be easily positioned without using a jig or the like, the assemblability of the display device 1 can be improved.
　なお、表示面シート４の透過部４１を、光を拡散させるような構成としてもよい。例えば、透過部４１の入射面を粗面で構成して光を拡散させるように構成してもよい。また、透過部４１を、光を拡散しやすい材料で形成してもよい。これにより、透過部４１全体が均一に光るようになり、輝度のむらが抑えられた見やすい表示とすることができる。 The transmitting portion 41 of the display surface sheet 4 may be configured to diffuse light. For example, the incident surface of the transmitting portion 41 may be formed of a rough surface to diffuse light. Further, the transmitting portion 41 may be formed of a material that easily diffuses light. As a result, the entire transmissive portion 41 shines uniformly, and it is possible to obtain an easy-to-see display in which uneven brightness is suppressed.
　また、表示面シート４のうち筐体２の表示面２１と対向する面の反対面をハーフミラーとしてもよい。これにより、発光していない透過部４１が、それ以外の領域と同様に視認され、発光していない場合には透過部４１が設けられていないように見せることができる。一方、第１発光素子５または第２発光素子６を発光させた場合には、ハーフミラーを光が透過することで透過部４１が発光する。したがって、透過部４１の発光時と非発光時との外観上の差異を大きくすることができる。 Further, the opposite surface of the display surface sheet 4 facing the display surface 21 of the housing 2 may be a half mirror. As a result, the transmissive portion 41 that does not emit light can be visually recognized in the same manner as the other regions, and when it does not emit light, it can be made to appear that the transmissive portion 41 is not provided. On the other hand, when the first light emitting element 5 or the second light emitting element 6 is made to emit light, the light is transmitted through the half mirror, so that the transmitting portion 41 emits light. Therefore, it is possible to increase the difference in appearance between the light emitting portion and the non-light emitting portion of the transmissive portion 41.
　また、本実施の形態１では、筐体２の裏面２７に凸部７が設けられた例を挙げているが、凸部７が設けられていない表示装置１としてもよい。凸部７が設けられていない場合には、第１の壁２３および第２の壁２４がないことで発光していない透過部４１への多少の光の漏れが発生したり、隙間２５がないことで基板３の位置決めに多少の手間がかかったりするものの、第１実装面３１が表示面２１と垂直であれば、表示面２１を第１実装面３１よりも小さく形成するという効果を得ることができる。なお、凸部７が設けられていない場合には、基板３および筐体２の裏面２７の一方に突起を形成し、他方に突起が嵌まる凹みを形成して、突起が凹みに嵌ることで基板３が位置決めされるようにしてもよい。 Further, in the first embodiment, the example in which the convex portion 7 is provided on the back surface 27 of the housing 2 is given, but the display device 1 in which the convex portion 7 is not provided may be used. When the convex portion 7 is not provided, some light leaks to the transmissive portion 41 that does not emit light due to the absence of the first wall 23 and the second wall 24, or there is no gap 25. As a result, although it takes some time to position the substrate 3, if the first mounting surface 31 is perpendicular to the display surface 21, the effect of forming the display surface 21 smaller than that of the first mounting surface 31 can be obtained. Can be done. When the convex portion 7 is not provided, a protrusion is formed on one of the back surface 27 of the substrate 3 and the housing 2, and a recess is formed on the other side so that the protrusion fits into the recess. The substrate 3 may be positioned.
　また、本実施の形態１では、透過部４１を発光させて７セグメント表示で数字を表示できる例を挙げて説明したが、透過部４１の形状および配置はこれに限られず、透過部４１を発光させて図形や文字を表示できる形状および配置としてもよい。 Further, in the first embodiment, an example in which the transmissive portion 41 is made to emit light and a number can be displayed in a 7-segment display has been described. However, the shape and arrangement of the transmissive portion 41 are not limited to this, and the transmissive portion 41 emits light. The shape and arrangement may be such that figures and characters can be displayed.
　図１２は、実施の形態１の変形例１にかかる表示装置における第１の壁、第２の壁、および基板の斜視図であり、隙間に基板を差し込む前の状態を示す図である。図１３は、実施の形態１の変形例１にかかる第１の壁、第２の壁、および基板の斜視図であり、隙間に基板が差し込まれた状態を示す図である。 FIG. 12 is a perspective view of the first wall, the second wall, and the substrate in the display device according to the first modification of the first embodiment, and is a diagram showing a state before the substrate is inserted into the gap. FIG. 13 is a perspective view of the first wall, the second wall, and the substrate according to the first modification of the first embodiment, and is a diagram showing a state in which the substrate is inserted into the gap.
　本変形例１では、基板３の１辺であって隙間２５に差し込まれる領域に切欠き３３が形成されている。基板３を隙間２５に差し込んだ際に、凸部７の接続壁２６が切欠き３３に嵌る。基板３が隙間２５に差し込まれることによる基板３の幅方向への位置決めに加えて、接続壁２６が切欠き３３に嵌ることによる基板３の上下方向への位置決めもされる。すなわち、基板３に凸部７が差し込まれることで、より正確に基板３の位置決めがなされる。 In the present modification 1, a notch 33 is formed in a region that is one side of the substrate 3 and is inserted into the gap 25. When the substrate 3 is inserted into the gap 25, the connecting wall 26 of the convex portion 7 fits into the notch 33. In addition to positioning the substrate 3 in the width direction by inserting the substrate 3 into the gap 25, positioning of the substrate 3 in the vertical direction is also performed by fitting the connection wall 26 into the notch 33. That is, by inserting the convex portion 7 into the substrate 3, the substrate 3 is positioned more accurately.
　図１４は、実施の形態１の変形例２にかかる表示装置における第１発光素子の実装部分を拡大した基板の部分拡大図である。変形例２では、第１実装面３１に実装された５個の第１発光素子５のうち２個の第１発光素子５が、他の第１発光素子５とは表示面２１からの距離が異なっている。 FIG. 14 is a partially enlarged view of a substrate in which the mounting portion of the first light emitting element in the display device according to the second modification of the first embodiment is enlarged. In the second modification, two of the five first light emitting elements 5 mounted on the first mounting surface 31 are separated from the other first light emitting elements 5 from the display surface 21. It's different.
　具体的には、表示面シート４に形成された複数の透過部４１のうち、上下方向に延びる形状の第１透過部４１ａに向けて発光する第１発光素子５と表示面２１との距離Ｄ１が、幅方向に延びる形状の第２透過部４１ｂに向けて発光する第１発光素子５と表示面２１との距離Ｄ２よりも大きくなっている。 Specifically, among the plurality of transmissive portions 41 formed on the display surface sheet 4, the distance D1 between the first light emitting element 5 that emits light toward the first transmissive portion 41a having a shape extending in the vertical direction and the display surface 21 Is larger than the distance D2 between the first light emitting element 5 and the display surface 21 that emits light toward the second transmitting portion 41b having a shape extending in the width direction.
　図１５は、変形例２にかかる表示装置の断面図であって、図７に示すＶＩＩＩ－ＶＩＩＩ線で切断した矢視断面図に相当する図である。上下方向に沿って第１発光素子５と透過部４１を見た場合に、表示面２１の裏面２７に垂直となる線と、第１発光素子５からの透過部４１への光の入射方向に沿った線とがなす角度を入射角θとする。この入射角が鈍角に近くなるほど、第１発光素子５からの光を透過させた透過部４１の輝度にむらができやすくなる。 FIG. 15 is a cross-sectional view of the display device according to the modified example 2, which corresponds to a cross-sectional view taken along the line VIII-VIII shown in FIG. When the first light emitting element 5 and the transmitting portion 41 are viewed along the vertical direction, the line perpendicular to the back surface 27 of the display surface 21 and the direction of light incident on the transmitting portion 41 from the first light emitting element 5 The angle formed by the lines along the line is defined as the incident angle θ. The closer the incident angle is to an obtuse angle, the more likely it is that the brightness of the transmitting portion 41 that transmits the light from the first light emitting element 5 becomes uneven.
　図１５に示すように距離Ｄ１＞距離Ｄ２とすることで、入射角θ１＞入射角θ２とすることができる。これにより、入射角θ２をより鋭角にして、透過部４１での輝度のむらを抑えて、より見やすい表示とすることができる。 As shown in FIG. 15, by setting the distance D1> the distance D2, the incident angle θ1> the incident angle θ2 can be satisfied. As a result, the incident angle θ2 can be made sharper, the unevenness of the brightness in the transmission portion 41 can be suppressed, and the display can be made easier to see.
　図１６は、図７に示すＸＶＩ－ＸＶＩ線に沿って切断した矢視断面図である。図１６では、幅方向に延びる形状の第２透過部４１ｂ部分を切断した図が示されている。 FIG. 16 is a cross-sectional view taken along the line XVI-XVI shown in FIG. FIG. 16 shows a cut-out view of the second transmission portion 41b having a shape extending in the width direction.
　図１４にも示すように、第２透過部４１ｂに向けて発光する第１発光素子５と表示面２１との距離Ｄ２は、第１透過部４１ａに向けて発光する第１発光素子５と表示面２１との距離Ｄ１よりも小さくなっている。しかしながら、図１６で示した第１発光素子５からの第２透過部４１ｂへの光の入射位置と第１発光素子５との幅方向の距離Ｄ４が、図１５で示した第１発光素子５から第１透過部４１ａへの光の入射位置と第１発光素子５と幅方向の距離Ｄ３よりも小さいため、距離Ｄ２を距離Ｄ１より小さくしても入射角θ３が鈍角になりにくい。そのため、第２透過部４１ｂに向けて発光する第１発光素子５は、第１透過部４１ａに向けて発光する第１発光素子５よりも表示面２１に近い位置に設けても、第２透過部４１ｂでの輝度のむらを抑えることができる。第１発光素子５よりも表示面２１に近づけることで、第１発光素子５の光量を抑えても第２透過部４１ｂで十分な輝度を得やすくなる。 As shown in FIG. 14, the distance D2 between the first light emitting element 5 that emits light toward the second transmission unit 41b and the display surface 21 is indicated as the first light emitting element 5 that emits light toward the first transmission unit 41a. It is smaller than the distance D1 from the surface 21. However, the distance D4 between the incident position of the light from the first light emitting element 5 to the second transmitting portion 41b shown in FIG. 16 and the first light emitting element 5 in the width direction is the first light emitting element 5 shown in FIG. Since the incident position of the light from the first transmitting portion 41a to the first light emitting element 5 and the distance D3 in the width direction are smaller, the incident angle θ3 is unlikely to become blunt even if the distance D2 is smaller than the distance D1. Therefore, even if the first light emitting element 5 that emits light toward the second transmission unit 41b is provided at a position closer to the display surface 21 than the first light emitting element 5 that emits light toward the first transmission unit 41a, the second transmission element 5 is transmitted. The unevenness of the brightness in the part 41b can be suppressed. By bringing it closer to the display surface 21 than the first light emitting element 5, it becomes easy to obtain sufficient brightness in the second transmitting portion 41b even if the amount of light of the first light emitting element 5 is suppressed.
　また、第１発光素子５と同様の理由により、第１透過部４１ａに向けて発光する第２発光素子６は、第２透過部４１ｂに向けて発光する第２発光素子６よりも表示面２１から離れた位置に設けられている。より具体的には、基板３を挟んで対称となる位置に第１発光素子５と第２発光素子６とが配置されている。 Further, for the same reason as the first light emitting element 5, the second light emitting element 6 that emits light toward the first transmission unit 41a has a display surface 21 more than the second light emitting element 6 that emits light toward the second transmission unit 41b. It is provided at a position away from. More specifically, the first light emitting element 5 and the second light emitting element 6 are arranged at positions symmetrical with respect to the substrate 3.
　以上の実施の形態に示した構成は、本発明の内容の一例を示すものであり、別の公知の技術と組み合わせることも可能であるし、本発明の要旨を逸脱しない範囲で、構成の一部を省略、変更することも可能である。 The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
　１　表示装置、２　筐体、３　基板、４　表示面シート、５　第１発光素子、６　第２発光素子、７　凸部、２１　表示面、２２　孔、２３　第１の壁、２４　第２の壁、２５　隙間、２６　接続壁、２７　裏面、２８　第１収容室、２９　第２収容室、３１　第１実装面、３２　第２実装面、３３　切欠き、４１　透過部、４１ａ　第１透過部、４１ｂ　第２透過部。 1 display device, 2 housing, 3 substrate, 4 display surface sheet, 5 first light emitting element, 6 second light emitting element, 7 convex part, 21 display surface, 22 holes, 23 first wall, 24 second wall , 25 gap, 26 connection wall, 27 back surface, 28 1st accommodation chamber, 29 2nd accommodation chamber, 31 1st mounting surface, 32 2nd mounting surface, 33 notch, 41 transparent part, 41a 1st transparent part, 41b Second transparent part.

Claims (11)

  1. 　複数の第１発光素子と、
    　複数の前記第１発光素子が実装された第１実装面を有する基板と、
    　外部と内部とを貫通する複数の孔が形成された表示面を有し、前記第１実装面を前記表示面と垂直にして前記基板を収容する筐体と、を備え、
    　複数の前記第１発光素子は、前記孔に向けて発光する向きで前記第１実装面に実装されていることを特徴とする表示装置。     With a plurality of first light emitting elements
    A substrate having a first mounting surface on which the plurality of first light emitting elements are mounted,
    It has a display surface formed with a plurality of holes penetrating the outside and the inside, and includes a housing in which the first mounting surface is perpendicular to the display surface to accommodate the substrate.
    A display device, wherein the plurality of first light emitting elements are mounted on the first mounting surface in a direction of emitting light toward the holes.
  2. 　複数の前記第１発光素子のそれぞれは、奥行き方向に沿って見た場合に、上下方向において、複数の前記孔のいずれかと重なる位置に配置されていることを特徴とする請求項１に記載の表示装置。 The first aspect of claim 1, wherein each of the plurality of first light emitting elements is arranged at a position overlapping with any of the plurality of holes in the vertical direction when viewed along the depth direction. Display device.
  3. 　前記筐体のうち前記表示面の裏には、前記孔の周囲から前記第１発光素子に向けて延びて、複数の前記孔同士の間を区切る第１の壁が設けられていることを特徴とする請求項１または２に記載の表示装置。 A feature of the housing is that a first wall extending from the periphery of the hole toward the first light emitting element and separating the plurality of holes from each other is provided on the back of the display surface. The display device according to claim 1 or 2.
  4. 　複数の前記第１発光素子の少なくとも１つは、前記表示面に垂直な方向に沿った前記表示面からの距離が他の前記第１発光素子と異なることを特徴とする請求項１から３のいずれか１つに記載の表示装置。 Claims 1 to 3, wherein at least one of the plurality of first light emitting elements is different from the other first light emitting elements in the distance from the display surface along the direction perpendicular to the display surface. The display device according to any one.
  5. 　前記基板の前記第１実装面の裏面である第２実装面に実装された複数の第２発光素子をさらに備え、
    　複数の前記第２発光素子は、前記孔に向けて発光することを特徴とする請求項１から４のいずれか１つに記載の表示装置。     A plurality of second light emitting elements mounted on the second mounting surface, which is the back surface of the first mounting surface of the substrate, are further provided.
    The display device according to any one of claims 1 to 4, wherein the plurality of second light emitting elements emit light toward the holes.
  6. 　前記筐体のうち前記表示面の裏には、前記孔の周囲から前記第２発光素子に向けて延びて、複数の前記孔同士の間を区切る第２の壁が設けられていることを特徴とする請求項５に記載の表示装置。 A second wall extending from the periphery of the hole toward the second light emitting element and separating the plurality of holes from each other is provided on the back of the display surface of the housing. The display device according to claim 5.
  7. 　複数の前記第２発光素子の少なくとも１つは、前記表示面に垂直な方向に沿った前記表示面からの距離が他の前記第２発光素子と異なることを特徴とする請求項５または６に記載の表示装置。 According to claim 5 or 6, at least one of the plurality of second light emitting elements is different from the other second light emitting elements in the distance from the display surface along the direction perpendicular to the display surface. The display device described.
  8. 　前記筐体の前記表示面の裏および前記基板の少なくとも一方には、前記基板を位置決めする位置決め部が設けられていることを特徴とする請求項１から７のいずれか１つに記載の表示装置。 The display device according to any one of claims 1 to 7, wherein a positioning portion for positioning the substrate is provided on the back of the display surface of the housing and at least one of the substrates. ..
  9. 　前記位置決め部は、前記表示面の裏に形成されて前記基板の端面が差し込まれる凹みであることを特徴とする請求項８に記載の表示装置。 The display device according to claim 8, wherein the positioning portion is a recess formed on the back surface of the display surface and into which an end surface of the substrate is inserted.
  10. 　前記表示面を覆う表示面シートをさらに備え、
    　前記表示面シートは、前記孔と重なる部分に光を透過させる透過部を有し、
    　前記透過部が光を拡散させる拡散素材で形成されていることを特徴とする請求項１から９のいずれか１つに記載の表示装置。     A display surface sheet covering the display surface is further provided.
    The display surface sheet has a transmissive portion that allows light to pass through a portion that overlaps with the hole.
    The display device according to any one of claims 1 to 9, wherein the transmitting portion is formed of a diffusing material that diffuses light.
  11. 　前記表示面を覆う表示面シートをさらに備え、
    　前記表示面シートは、前記孔と重なる部分に光を透過させる透過部を有し、
    　前記透過部がハーフミラーであることを特徴とする請求項１から９のいずれか１つに記載の表示装置。     A display surface sheet covering the display surface is further provided.
    The display surface sheet has a transmissive portion that allows light to pass through a portion that overlaps with the hole.
    The display device according to any one of claims 1 to 9, wherein the transmissive portion is a half mirror.
PCT/JP2019/036192 2019-09-13 2019-09-13 Display device WO2021049027A1 (en)

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DE112019007711.2T DE112019007711T5 (en) 2019-09-13 2019-09-13 display device
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