JP2019185955A - Touch panel illumination structure and in-vehicle device - Google Patents

Touch panel illumination structure and in-vehicle device Download PDF

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JP2019185955A
JP2019185955A JP2018073322A JP2018073322A JP2019185955A JP 2019185955 A JP2019185955 A JP 2019185955A JP 2018073322 A JP2018073322 A JP 2018073322A JP 2018073322 A JP2018073322 A JP 2018073322A JP 2019185955 A JP2019185955 A JP 2019185955A
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touch panel
light
light guide
illumination structure
cover
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JP7050555B2 (en
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雅一 小路
Masakazu Shoji
雅一 小路
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

To prevent light from leaking to the outside from a gap between a touch panel and a supporting body.SOLUTION: A light guide body 40 is arranged on the side of a back surface of a touch panel 10, and comprises an introduction passage 42 for introducing light emitted by an LED 30, and a light guide passage 43 for guiding the light in the introduction passage 42 to an operation part 11 of the touch panel 10 and illuminating a light transmission region 13. A supporting body 50 is a member supporting the periphery of the touch panel 10 integrated with a cover 20 and not having a light guiding property. The supporting body 50 comprises a protruding part 51 protruding from an inner surface. A surface of the protruding part 51 is a supporting surface 52 supporting a back surface of the cover 20. A side surface of the protruding part 51 is opposed to a lead-out port 44 of the light guide passage 43.SELECTED DRAWING: Figure 1

Description

この発明は、タッチパネルの操作部を光らせるタッチパネル照明構造、及びタッチパネル照明構造を備える車載装置に関するものである。   The present invention relates to a touch panel illumination structure that illuminates an operation unit of a touch panel, and an in-vehicle device including the touch panel illumination structure.

タッチパネルの操作部には、暗所で操作しやすいように照明構造が設けられる（例えば、特許文献１参照）。従来の照明構造では、タッチパネルの裏面側に、シート状の導光体がこのタッチパネルと平行に配置され、導光体の端部に光源が配置される。光源が発する光は、導光体に入射し、導光体の白色系印刷部を淡く光らせる。   The operation unit of the touch panel is provided with an illumination structure so that it can be easily operated in a dark place (see, for example, Patent Document 1). In the conventional illumination structure, a sheet-like light guide is disposed in parallel with the touch panel on the back side of the touch panel, and a light source is disposed at the end of the light guide. The light emitted from the light source is incident on the light guide and makes the white print portion of the light guide lightly shine.

特開２０１０−１３４６０５号公報JP 2010-134605 A

従来の照明構造は以上のように構成されているので、導光体の一端部に配置された光源から導光体の他端部へ導かれた光が、当該導光体及びタッチパネル等を支持する支持体と、導光体との隙間から外部へ漏れるという課題があった。   Since the conventional illumination structure is configured as described above, the light guided from the light source arranged at one end of the light guide to the other end of the light guide supports the light guide, the touch panel, and the like. There was a problem of leaking to the outside through a gap between the supporting body and the light guide.

この発明は、上記のような課題を解決するためになされたもので、外部への光漏れを防止することを目的とする。   The present invention has been made to solve the above-described problems, and an object thereof is to prevent light leakage to the outside.

この発明に係るタッチパネル照明構造は、光遮蔽領域内に光透過領域が形成された操作部を有するタッチパネルと、タッチパネルの表面を覆う、タッチパネルと一体化されたカバーと、タッチパネルの裏面側に配置された光源と、タッチパネルの裏面側に配置され、光源が発した光を導入する導入通路及び導入通路の光をタッチパネルの操作部へ導光して光透過領域を照らす導光通路を有する導光体と、カバーと一体化されたタッチパネルの周囲を支持する、導光性を有さない支持体とを備え、支持体は、内面から突出した突部を有し、突部の表面はタッチパネル又はカバーの裏面を支持し、突部の側面は導光通路の導出口に対面するものである。   The touch panel illumination structure according to the present invention is disposed on a touch panel having an operation unit in which a light transmission region is formed in a light shielding region, a cover that covers the surface of the touch panel, integrated with the touch panel, and a back surface side of the touch panel. A light guide that is arranged on the back side of the touch panel and that introduces light emitted from the light source and guides the light in the introduction path to the operation unit of the touch panel to illuminate the light transmission region And a support body that does not have a light guide property and supports the periphery of the touch panel integrated with the cover, the support body has a protrusion protruding from the inner surface, and the surface of the protrusion is a touch panel or a cover. The side surface of the protrusion faces the outlet of the light guide passage.

この発明によれば、支持体の内面から突出した突部の側面が、導光通路の導出口に対面するようにしたので、外部への光漏れを防止することができる。   According to the present invention, since the side surface of the protrusion protruding from the inner surface of the support body faces the outlet of the light guide passage, light leakage to the outside can be prevented.

実施の形態１に係るタッチパネル照明構造の構成例を示す分解斜視図である。2 is an exploded perspective view showing a configuration example of a touch panel illumination structure according to Embodiment 1. FIG. 実施の形態１に係るタッチパネル照明構造の構成例を示す正面図である。3 is a front view illustrating a configuration example of a touch panel illumination structure according to Embodiment 1. FIG. 実施の形態１における導光体の構成例を示す側面図である。FIG. 3 is a side view showing a configuration example of a light guide in the first embodiment. 実施の形態１における支持体の構成例を示す正面図である。FIG. 3 is a front view illustrating a configuration example of a support body in the first embodiment. 実施の形態１に係るタッチパネル照明構造を図２のＡ−Ａ線に沿って切断したＡ−Ａ断面図である。It is AA sectional drawing which cut | disconnected the touch panel illumination structure which concerns on Embodiment 1 along the AA line of FIG. 図６Ａは、支持体に突部がある場合の光の経路を説明するＡ−Ａ断面図であり、図６Ｂは、突部がない場合の光の経路を説明するＡ−Ａ断面図である。FIG. 6A is a cross-sectional view taken along the line AA illustrating a light path when the support has a protrusion, and FIG. 6B is a cross-sectional view taken along the line AA illustrating a light path when there is no protrusion. . 実施の形態１に係るタッチパネル照明構造の変形例を示すＡ−Ａ断面図である。It is AA sectional drawing which shows the modification of the touchscreen illumination structure which concerns on Embodiment 1. FIG.

実施の形態１．
図１は、実施の形態１に係るタッチパネル照明構造１の構成例を示す分解斜視図である。図２は、実施の形態１に係るタッチパネル照明構造１の構成例を示す正面図である。タッチパネル照明構造１は、タッチパネル１０、カバー２０、ＬＥＤ（Ｌｉｇｈｔ Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ）３０、導光体４０、及び支持体５０を備える。ここでは、タッチパネル照明構造１が、ナビゲーション機能又はオーディオ機能等を有する車載装置に適用される場合を例に用いて、実施の形態１を説明する。図示しない車載装置は、タッチパネル照明構造１、タッチパネル１０の裏面側に配置される図示しないディスプレイ及び制御基板等を備える。 Embodiment 1 FIG.
FIG. 1 is an exploded perspective view showing a configuration example of the touch panel illumination structure 1 according to the first embodiment. FIG. 2 is a front view illustrating a configuration example of the touch panel illumination structure 1 according to the first embodiment. The touch panel illumination structure 1 includes a touch panel 10, a cover 20, an LED (Light Emitting Diode) 30, a light guide 40, and a support 50. Here, the first embodiment will be described using an example in which the touch panel illumination structure 1 is applied to an in-vehicle device having a navigation function or an audio function. A vehicle-mounted device (not shown) includes a touch panel illumination structure 1, a display (not shown), a control board, and the like arranged on the back side of the touch panel 10.

タッチパネル１０は、透明なガラス又は樹脂等の基板の上に、透明電極が配置された構成であり、光が透過する部材である。このタッチパネル１０は、黒色等の、光を遮蔽する塗料が印刷された光遮蔽領域１２を有する。光遮蔽領域１２内の一部には、上記塗料が印刷されておらず、光が透過する光透過領域１３が形成されている。なお、光透過領域１３に、光が透過可能な塗料が印刷されていてもよい。光遮蔽領域１２内の光透過領域１３の形状は、「ＮＡＶＩ」、「ＡＵＤＩＯ」、「ＶＯＬ−」、「ＶＯＬ＋」、及び「ＰＯＷＥＲ」等の文字、又は図形等になっており、ユーザが光透過領域１３をタッチ操作した場合に実行される機能を表している。例えば、ユーザが「ＮＡＶＩ」という光透過領域１３をタッチ操作した場合、上記車載装置は、ナビゲーション機能を実行する。即ち、光遮蔽領域１２及び光透過領域１３は、ユーザにタッチ操作させる操作部１１を構成する。   The touch panel 10 has a configuration in which a transparent electrode is disposed on a transparent substrate such as glass or resin, and is a member that transmits light. The touch panel 10 has a light shielding area 12 on which a paint for shielding light such as black is printed. A part of the light shielding region 12 is formed with a light transmission region 13 through which the paint is not printed and light is transmitted. Note that a paint capable of transmitting light may be printed in the light transmission region 13. The shape of the light transmission region 13 in the light shielding region 12 is a character or figure such as “NAVI”, “AUDIO”, “VOL−”, “VOL +”, “POWER”, etc. A function executed when the transparent area 13 is touched is shown. For example, when the user performs a touch operation on the light transmission region 13 called “NAVI”, the in-vehicle device executes a navigation function. That is, the light shielding area 12 and the light transmission area 13 constitute the operation unit 11 that allows the user to perform a touch operation.

カバー２０は、透明なガラス又は樹脂等の、光が透過する部材で構成される。このカバー２０は、タッチパネル１０の表面を覆い、タッチパネル１０を保護する。例えば、カバー２０とタッチパネル１０とは、接着剤により接着されることにより、一体化される。   The cover 20 is formed of a member that transmits light, such as transparent glass or resin. The cover 20 covers the surface of the touch panel 10 and protects the touch panel 10. For example, the cover 20 and the touch panel 10 are integrated by being bonded with an adhesive.

ＬＥＤ３０は、タッチパネル照明構造１の光源である。ただし、光源は、ＬＥＤ３０に限定されるものではない。ＬＥＤ３０は、基板３１に実装された状態で、タッチパネル１０の裏面側に配置される。   The LED 30 is a light source of the touch panel illumination structure 1. However, the light source is not limited to the LED 30. The LED 30 is disposed on the back side of the touch panel 10 while being mounted on the substrate 31.

図３は、実施の形態１における導光体４０の構成例を示す側面図である。
導光体４０は、透明なガラス又は樹脂等の、導光性を有する部材である。この導光体４０は、タッチパネル１０の裏面側に配置される。導光体４０は、ＬＥＤ３０が発した光を導入口４１から導光体４０内部へ導入する導入通路４２と、導入通路４２に導入された光をタッチパネル１０の操作部１１へ導光して光透過領域１３を照らす導光通路４３とを有する。導入通路４２の導入口４１は、ＬＥＤ３０に対向する位置に配置される。導入通路４２は、タッチパネル１０の平面方向に対して直交する方向にのびた形状である。図２に示されるように、車載装置は、タッチパネル１０の平面方向にＬＥＤ３０を配置する空間的余裕がない。そのため、実施の形態１では、タッチパネル１０の平面方向に対して直交する方向、即ちタッチパネル１０の裏面側にＬＥＤ３０が配置され、ＬＥＤ３０の位置まで導入通路４２がのばされている。導光通路４３は、タッチパネル１０の平面方向と平行にのびた形状であり、操作部１１における「ＮＡＶＩ」、「ＡＵＤＩＯ」、「ＶＯＬ−」、「ＶＯＬ＋」、及び「ＰＯＷＥＲ」のそれぞれの光透過領域１３を照らす。これにより、操作部１１における「ＮＡＶＩ」、「ＡＵＤＩＯ」、「ＶＯＬ−」、「ＶＯＬ＋」、及び「ＰＯＷＥＲ」のそれぞれの光透過領域１３が光り、ユーザは暗部でのタッチ操作がしやすくなる。 FIG. 3 is a side view showing a configuration example of the light guide 40 in the first embodiment.
The light guide 40 is a member having light guide properties such as transparent glass or resin. The light guide 40 is disposed on the back side of the touch panel 10. The light guide 40 introduces light emitted from the LEDs 30 into the light guide 40 from the introduction port 41, and guides light introduced into the introduction passage 42 to the operation unit 11 of the touch panel 10. And a light guide passage 43 that illuminates the transmissive region 13. The introduction port 41 of the introduction passage 42 is disposed at a position facing the LED 30. The introduction passage 42 has a shape extending in a direction orthogonal to the planar direction of the touch panel 10. As shown in FIG. 2, the in-vehicle device does not have a spatial margin for arranging the LEDs 30 in the planar direction of the touch panel 10. Therefore, in the first embodiment, the LEDs 30 are arranged in a direction orthogonal to the planar direction of the touch panel 10, that is, on the back side of the touch panel 10, and the introduction passage 42 extends to the position of the LEDs 30. The light guide passage 43 has a shape extending in parallel with the planar direction of the touch panel 10, and each light transmission area of “NAVI”, “AUDIO”, “VOL−”, “VOL +”, and “POWER” in the operation unit 11. Illuminate 13. As a result, the light transmission regions 13 of “NAVI”, “AUDIO”, “VOL−”, “VOL +”, and “POWER” in the operation unit 11 are illuminated, and the user can easily perform a touch operation in the dark part.

なお、図示例のタッチパネル照明構造１は、１つのＬＥＤ３０と１つの導光体４０とを用いて複数の光透過領域１３を照らす構成であるが、２つ以上のＬＥＤ３０と２つ以上の導光体４０とを用いて複数の光透過領域１３を照らす構成であってもよい。また、２つ以上のＬＥＤ３０と１つの導光体４０とを用いて複数の光透過領域１３を照らす構成であってもよい。後者の場合、導光体４０は、ＬＥＤ３０と同数の導入通路４２を有する。   The touch panel illumination structure 1 in the illustrated example is configured to illuminate a plurality of light transmission regions 13 using one LED 30 and one light guide 40, but two or more LEDs 30 and two or more light guides are used. The structure which illuminates the some light transmissive area | region 13 using the body 40 may be sufficient. Moreover, the structure which illuminates the some light transmissive area | region 13 using two or more LED30 and the one light guide 40 may be sufficient. In the latter case, the light guide 40 has the same number of introduction passages 42 as the LEDs 30.

図４は、実施の形態１における支持体５０の構成例を示す正面図である。図５は、実施の形態１に係るタッチパネル照明構造１を図２のＡ−Ａ線に沿って切断したＡ−Ａ断面図である。
支持体５０は、光を透過しない樹脂等で構成された部材であり、導光性を有さない。この支持体５０は、カバー２０と一体化されたタッチパネル１０の周囲を支持する。図４及び図５に示されるように、支持体５０は、４つの内面それぞれから突出した突部５１を有する。突部５１の表面は、タッチパネル１０と一体化されたカバー２０の裏面を支持する支持面５２である。例えば、支持面５２とカバー２０の裏面とは、接着剤により接着される。突部５１の側面は、導光体４０の導光通路４３の端面である導出口４４に対面することによって導出口４４から導出される光が外部へ漏れることを防止する、第１光遮蔽面５３である。 FIG. 4 is a front view showing a configuration example of the support body 50 in the first embodiment. 5 is a cross-sectional view taken along the line AA of the touch panel illumination structure 1 according to Embodiment 1 taken along the line AA in FIG.
The support body 50 is a member made of a resin or the like that does not transmit light and does not have light guide properties. The support 50 supports the periphery of the touch panel 10 integrated with the cover 20. As shown in FIGS. 4 and 5, the support body 50 has protrusions 51 protruding from the four inner surfaces. The surface of the protrusion 51 is a support surface 52 that supports the back surface of the cover 20 integrated with the touch panel 10. For example, the support surface 52 and the back surface of the cover 20 are bonded with an adhesive. The first light shielding surface that prevents the light derived from the outlet 44 from leaking to the outside by facing the outlet 44 that is the end face of the light guide passage 43 of the light guide 40 on the side surface of the protrusion 51. 53.

また、支持体５０は、導光体４０が配置される部分に設けられた第２光遮蔽部５４を有する。第２光遮蔽部５４は、導光体４０の導光通路４３から基板３１側へ光が漏れることを防止する部材である。第２光遮蔽部５４には、導光体４０の導入通路４２をＬＥＤ３０側へ貫通させるための開口部５５が形成されている。また、第２光遮蔽部５４の縁部は、タッチパネル１０側に突出した形状の第３光遮蔽部５６が形成されている。第３光遮蔽部５６は、導光体４０の導光通路４３からタッチパネル１０の中心方向へ光が漏れることを防止する。   Further, the support 50 has a second light shielding part 54 provided at a portion where the light guide 40 is disposed. The second light shielding portion 54 is a member that prevents light from leaking from the light guide passage 43 of the light guide 40 toward the substrate 31. The second light shielding part 54 is formed with an opening 55 for allowing the introduction passage 42 of the light guide 40 to penetrate to the LED 30 side. Further, a third light shielding part 56 having a shape protruding toward the touch panel 10 is formed at the edge of the second light shielding part 54. The third light shielding unit 56 prevents light from leaking from the light guide passage 43 of the light guide 40 toward the center of the touch panel 10.

図６Ａは、支持体５０に突部５１がある場合の光の経路を説明するＡ−Ａ断面図であり、図６Ｂは、突部５１がない場合の光の経路を説明するＡ−Ａ断面図である。
図５において、ＬＥＤ３０が発した光は、導光体４０の導入口４１から導入通路４２へ入り、導光通路４３へ導かれる。そして、図６Ａに矢印で示されるように、導光通路４３へ導かれた光は、タッチパネル１０の光透過領域１３を照らす。また、導光通路４３へ導かれた光は、導光通路４３の導出口４４にも到達するため、導出口４４の周囲を照らすことになる。しかしながら、導出口４４に対面するように突部５１の第１光遮蔽面５３が配置されているため、導出口４４の周囲に光が漏れにくい。また、突部５１が存在することにより、導光口４４からカバー２０と支持体５０との隙間までの光の経路の距離が長くなり、光が漏れにくくなる。したがって、カバー２０と支持面５２との隙間から外部への光漏れを防止できる。 6A is a cross-sectional view taken along the line AA when the protrusion 50 is provided on the support 50, and FIG. 6B is a cross-sectional view taken along the line AA for explaining the light path when the protrusion 51 is not provided. FIG.
In FIG. 5, the light emitted from the LED 30 enters the introduction passage 42 from the introduction port 41 of the light guide 40 and is guided to the light guide passage 43. 6A, the light guided to the light guide passage 43 illuminates the light transmission region 13 of the touch panel 10. Further, since the light guided to the light guide passage 43 reaches the outlet 44 of the light guide passage 43, the light around the outlet 44 is illuminated. However, since the first light shielding surface 53 of the projecting portion 51 is disposed so as to face the outlet 44, light does not easily leak around the outlet 44. In addition, the presence of the protrusion 51 increases the distance of the light path from the light guide opening 44 to the gap between the cover 20 and the support body 50, making it difficult for light to leak. Therefore, light leakage from the gap between the cover 20 and the support surface 52 to the outside can be prevented.

一方、図６Ｂに示されるように、支持体５０に突部５１が設けられていない場合、導光通路４３の導出口４４に到達した光を遮るものがないため、カバー２０と支持体５０との隙間から外部への光漏れが発生する。   On the other hand, as shown in FIG. 6B, when the protrusion 51 is not provided on the support 50, there is nothing to block the light reaching the outlet 44 of the light guide passage 43, so the cover 20 and the support 50 Leakage of light from the gaps to the outside occurs.

以上のように、実施の形態１に係るタッチパネル照明構造１は、タッチパネル１０、カバー２０、ＬＥＤ３０、導光体４０、及び支持体５０を備える。タッチパネル１０は、光遮蔽領域１２内に光透過領域１３が形成された操作部１１を有する。カバー２０は、タッチパネル１０の表面を覆い、タッチパネル１０と一体化される。ＬＥＤ３０は、タッチパネル１０の裏面側に配置される。導光体４０は、タッチパネル１０の裏面側に配置され、ＬＥＤ３０が発した光を導入する導入通路４２及び導入通路４２の光をタッチパネル１０の操作部１１へ導光して光透過領域１３を照らす導光通路４３を有する。支持体５０は、カバー２０と一体化されたタッチパネル１０の周囲を支持する、導光性を有さない部材である。この支持体５０は、内面から突出した突部５１を有し、突部５１の表面はカバー２０の裏面を支持する支持面５２であり、突部５１の側面は導光通路４３の導出口４４に対面する。これにより、タッチパネル照明構造１は、タッチパネル１０と支持体５０との隙間から外部への光漏れを防止することができる。また、タッチパネル照明構造１は、１つのＬＥＤ３０により、複数の光透過領域１３を照らすことができる。   As described above, the touch panel illumination structure 1 according to Embodiment 1 includes the touch panel 10, the cover 20, the LED 30, the light guide 40, and the support 50. The touch panel 10 includes an operation unit 11 in which a light transmission region 13 is formed in the light shielding region 12. The cover 20 covers the surface of the touch panel 10 and is integrated with the touch panel 10. The LED 30 is disposed on the back side of the touch panel 10. The light guide 40 is disposed on the back surface side of the touch panel 10, and introduces the light from the LED 30 into the introduction passage 42 and the light from the introduction passage 42 to the operation unit 11 of the touch panel 10 to illuminate the light transmission region 13. A light guide passage 43 is provided. The support body 50 is a member that does not have a light guide property and supports the periphery of the touch panel 10 integrated with the cover 20. The support 50 has a protrusion 51 protruding from the inner surface, the surface of the protrusion 51 is a support surface 52 that supports the back surface of the cover 20, and the side surface of the protrusion 51 is the outlet 44 of the light guide passage 43. Face to face. Thereby, the touch panel illumination structure 1 can prevent light leakage from the gap between the touch panel 10 and the support 50 to the outside. The touch panel illumination structure 1 can illuminate a plurality of light transmission regions 13 with one LED 30.

また、実施の形態１における導光体４０の導入通路４２は、タッチパネル１０の平面方向に対して直交する方向にのびている。これにより、ＬＥＤ３０は、タッチパネル１０の裏面側に配置可能である。よって、タッチパネル照明構造１は、タッチパネル１０の平面方向にＬＥＤ３０を配置する空間的余裕がない車載装置に用いるのに好適である。   In addition, the introduction passage 42 of the light guide 40 in the first embodiment extends in a direction orthogonal to the planar direction of the touch panel 10. Thereby, the LED 30 can be arranged on the back side of the touch panel 10. Therefore, the touch panel illumination structure 1 is suitable for use in an in-vehicle device that does not have a spatial margin for disposing the LEDs 30 in the planar direction of the touch panel 10.

なお、実施の形態１では、突部５１の支持面５２がカバー２０の裏面を支持する構成であったが、突部５１の支持面５２がタッチパネル１０の裏面を支持する構成であってもよい。   In the first embodiment, the support surface 52 of the protrusion 51 supports the back surface of the cover 20. However, the support surface 52 of the protrusion 51 may support the back surface of the touch panel 10. .

図７は、実施の形態１に係るタッチパネル照明構造１の変形例を示すＡ−Ａ断面図である。図１〜図６の構成例では、カバー２０の裏面が、突部５１の支持面５２により支持されていた。これに対し、図７の構成例では、タッチパネル１０の裏面が突部５１の支持面５２により支持される。図７の構成例の場合、タッチパネル１０の光遮蔽領域１２が突部５１の支持面５２により支持されるため、外部への光漏れをより確実に防止できる。また、光遮蔽領域１２と支持面５２とを接着させ、両者の隙間を完全に塞ぐことにより、外部への光漏れをより一層確実に防止できる。   FIG. 7 is a cross-sectional view taken along the line AA, showing a modification of the touch panel illumination structure 1 according to the first embodiment. 1 to 6, the back surface of the cover 20 is supported by the support surface 52 of the protrusion 51. In contrast, in the configuration example of FIG. 7, the back surface of the touch panel 10 is supported by the support surface 52 of the protrusion 51. In the case of the configuration example of FIG. 7, since the light shielding region 12 of the touch panel 10 is supported by the support surface 52 of the protrusion 51, light leakage to the outside can be more reliably prevented. Moreover, the light shielding area | region 12 and the support surface 52 are adhere | attached, and the light leakage to the exterior can be prevented still more reliably by block | closing the clearance gap between both completely.

上記説明では、タッチパネル照明構造１を、ナビゲーション機能及びオーディオ機能等を有する車載装置に適用した例を示したが、車載装置以外の電子機器に適用してもよい。   In the above description, an example in which the touch panel illumination structure 1 is applied to an in-vehicle device having a navigation function, an audio function, and the like has been described. However, the touch panel illumination structure 1 may be applied to electronic devices other than the in-vehicle device.

なお、本発明はその発明の範囲内において、実施の形態の任意の構成要素の変形、又は実施の形態の任意の構成要素の省略が可能である。   In the present invention, any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.

１ タッチパネル照明構造、１０ タッチパネル、１１ 操作部、１２ 光遮蔽領域、１３ 光透過領域、２０ カバー、３０ ＬＥＤ（光源）、３１ 基板、４０ 導光体、４１ 導入口、４２ 導入通路、４３ 導光通路、４４ 導出口、５０ 支持体、５１ 突部、５２ 支持面、５３ 第１光遮蔽面、５４ 第２光遮蔽部、５５ 開口部、５６ 第３光遮蔽部。   DESCRIPTION OF SYMBOLS 1 Touch panel illumination structure, 10 Touch panel, 11 Operation part, 12 Light shielding area, 13 Light transmission area, 20 Cover, 30 LED (light source), 31 Substrate, 40 Light guide, 41 Inlet, 42 Introductory path, 43 Light guide Passage, 44 outlet, 50 support, 51 protrusion, 52 support surface, 53 first light shielding surface, 54 second light shielding portion, 55 opening, 56 third light shielding portion.

Claims (3)

光遮蔽領域内に光透過領域が形成された操作部を有するタッチパネルと、
前記タッチパネルの表面を覆う、前記タッチパネルと一体化されたカバーと、
前記タッチパネルの裏面側に配置された光源と、
前記タッチパネルの裏面側に配置され、前記光源が発した光を導入する導入通路及び前記導入通路の光を前記タッチパネルの前記操作部へ導光して前記光透過領域を照らす導光通路を有する導光体と、
前記カバーと一体化された前記タッチパネルの周囲を支持する、導光性を有さない支持体とを備え、
前記支持体は、内面から突出した突部を有し、前記突部の表面は前記タッチパネル又は前記カバーの裏面を支持し、前記突部の側面は前記導光通路の導出口に対面することを特徴とするタッチパネル照明構造。 A touch panel having an operation unit in which a light transmission region is formed in the light shielding region;
A cover integrated with the touch panel for covering the surface of the touch panel;
A light source disposed on the back side of the touch panel;
A guide passage disposed on the back surface side of the touch panel and having an introduction passage for introducing light emitted from the light source and a light guide passage for guiding the light of the introduction passage to the operation portion of the touch panel and illuminating the light transmission region. Light body,
A support body that supports the periphery of the touch panel integrated with the cover and does not have a light guide property;
The support has a protrusion protruding from the inner surface, the surface of the protrusion supports the back surface of the touch panel or the cover, and the side surface of the protrusion faces the outlet of the light guide passage. A touch panel illumination structure that is characterized. 前記導光体の前記導入通路は、前記タッチパネルの平面方向に対して直交する方向にのびていることを特徴とする請求項１記載のタッチパネル照明構造。   The touch panel illumination structure according to claim 1, wherein the introduction passage of the light guide body extends in a direction orthogonal to a planar direction of the touch panel. 請求項１又は請求項２記載のタッチパネル照明構造を備える車載装置。   An in-vehicle device provided with the touch panel illumination structure according to claim 1.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000270174A (en) * 1999-03-19 2000-09-29 Miyota Kk Image reader
JP2007317393A (en) * 2006-05-23 2007-12-06 Alps Electric Co Ltd Switching device and steering switching device using the same
JP2013003498A (en) * 2011-06-21 2013-01-07 Nec Casio Mobile Communications Ltd Electronic apparatus
JP2013232081A (en) * 2012-04-27 2013-11-14 Nippon Seiki Co Ltd Touch panel input operation device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000270174A (en) * 1999-03-19 2000-09-29 Miyota Kk Image reader
JP2007317393A (en) * 2006-05-23 2007-12-06 Alps Electric Co Ltd Switching device and steering switching device using the same
JP2013003498A (en) * 2011-06-21 2013-01-07 Nec Casio Mobile Communications Ltd Electronic apparatus
JP2013232081A (en) * 2012-04-27 2013-11-14 Nippon Seiki Co Ltd Touch panel input operation device

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