JP4830349B2 - High frequency heating device - Google Patents

High frequency heating device Download PDF

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JP4830349B2
JP4830349B2 JP2005152106A JP2005152106A JP4830349B2 JP 4830349 B2 JP4830349 B2 JP 4830349B2 JP 2005152106 A JP2005152106 A JP 2005152106A JP 2005152106 A JP2005152106 A JP 2005152106A JP 4830349 B2 JP4830349 B2 JP 4830349B2
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ink
operation panel
transparent
panel sheet
display
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JP2006330240A (en
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政知 折田
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which obviates the occurrence of Newton rings. <P>SOLUTION: Either of a rear surface of a transparent window section of a control panel sheet 7 or a facing surface of the control panel sheet 7 of a transparent plate 13 is subjected to print processing by an ink prepared by incorporating a slight amount of particulate powder 15 of the extent of not practically impairing transparency into a transparent ink 14, due to which the contact in the planar state with the film thickness of the ink is no more made possible by the ruggedness of the printing surface formed by the particulates incorporated into the ink and the contact state near the wavelength of for light to the transparent plate 13 each other is eliminated and the Newton rings can be prevented from occurring. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

本発明は、表面に透明なフィルム又は薄厚のシートよりなる操作パネルシートを備えた表示装置のニュートンリング防止に関するものである。   The present invention relates to prevention of Newton's rings in a display device having an operation panel sheet made of a transparent film or thin sheet on the surface.

従来、この種の表示装置は種々の方法でニュートンリング防止策が講じられてきた。そもそもニュートンリングは、平面ガラス上に曲率半径が極めて大きな凸レンズを置いた時に、その間の空気層の距離が光の波長に近付いた時に生じる光の干渉縞であり、ニュートンが発見した物理現象である(例えば、非特許文献1参照)。   Conventionally, measures for preventing Newton's rings have been taken in various ways in this type of display device. In the first place, Newton's ring is a light interference fringe that occurs when a convex lens with an extremely large radius of curvature is placed on a flat glass and the distance between the air layers approaches the wavelength of light, and is a physical phenomenon discovered by Newton. (For example, refer nonpatent literature 1).

機器に於いても平面ガラスまたはそれに準ずる透明な樹脂製のプレート上に、透明なシートまたはフィルムが存在すると、このシートまたはフィルムの反りやたわみが凸レンズの効果を生じてニュートンリングが発生するのは周知の現象である。   Even in equipment, if there is a transparent sheet or film on a flat glass plate or a transparent resin plate equivalent to it, the warp or deflection of this sheet or film will cause the effect of a convex lens and Newton rings will occur. This is a well-known phenomenon.

機器の表示装置の表示窓に於いてニュートンリングが生じると、外観上見苦しいだけでなく、表示の文字又は記号等が歪んで見えるため必ず防止策を講じるべきものである。   When a Newton ring occurs in the display window of a display device of an apparatus, not only the appearance is unsightly but also the characters or symbols of the display appear to be distorted, so a preventive measure should be taken.

図4は表示装置1を有する一般的な高周波加熱装置の外観図の例を示し、設定用の複数の操作用スイッチ2と共に操作パネル3に構成された表示装置1と、把手5等を有する扉4とボデー6で構成される。   FIG. 4 shows an example of an external view of a general high-frequency heating device having a display device 1, and a door having a display device 1 configured on an operation panel 3 together with a plurality of operation switches 2 for setting, a handle 5, and the like. 4 and body 6.

図5は、このような機器における表示装置1の断面図を示し、図6は図5のB部の拡大図を示す。図に示すように、操作パネル本体9の内部に設けた表示管8は回路基板10に電極11を介して半田12等で接続固定され、操作パネル本体9の表面側には透明なフィルム等よりなる操作パネルシート7が両面テープ等で貼り付けて構成される。この操作パネルシート7は、表示管8に対応した大きさLの表示窓を設け、この表示窓含む操作パネル3の表面を覆い外郭を構成する。表示管8と操作パネルシート7との間には透明プレート13を設け外力より表示管8を守ると共に、フィルムのみの場合外力で容易にたわみが生じないように外観・品位上の目的で設けるのが一般的であるが、この操作パネルシート7と透明プレート13との間に生じる微小な隙間Sの部分で前述のニュートンリングが生じてしまうものであった。   FIG. 5 shows a cross-sectional view of the display device 1 in such a device, and FIG. 6 shows an enlarged view of part B of FIG. As shown in the figure, the display tube 8 provided inside the operation panel main body 9 is connected and fixed to the circuit board 10 via the electrodes 11 with solder 12 or the like, and a transparent film or the like is formed on the surface side of the operation panel main body 9. The operation panel sheet 7 is formed by sticking with a double-sided tape or the like. The operation panel sheet 7 is provided with a display window having a size L corresponding to the display tube 8, and covers the surface of the operation panel 3 including the display window to form an outline. A transparent plate 13 is provided between the display tube 8 and the operation panel sheet 7 to protect the display tube 8 from external force, and in the case of only a film, it is provided for the purpose of appearance and quality so that the external force does not easily cause deflection. In general, however, the above-mentioned Newton ring is generated at the minute gap S formed between the operation panel sheet 7 and the transparent plate 13.

そこで従来は、この隙間Sを、部品のバラツキやフィルムよりなる操作パネルシートにたわみ等が生じても透明プレート13に触れ得ない大きな隙間に設定するというのが一般的な対策方法であった。   Therefore, conventionally, it has been a general countermeasure method to set the gap S to a large gap where the transparent plate 13 cannot be touched even if the operation panel sheet made of a variation in parts or a film is bent.

また最近では、図7に示すように表示窓の面積の比較的小さいものでは、前記透明プレート13を廃止する構成例もある。つまり、操作パネルシート7と表示管8との隙間を外力が容易に影響し得ない距離Tとして、前記透明プレート13を廃止するものである。
近角聡信、田沼静一、長谷川博一著「新訂 物理II」東京書籍出版
Recently, as shown in FIG. 7, there is a configuration example in which the transparent plate 13 is eliminated when the display window has a relatively small area. That is, the transparent plate 13 is abolished by setting the gap between the operation panel sheet 7 and the display tube 8 as a distance T at which an external force cannot be easily influenced.
"Shinsei Physics II" Tokyo Book Publishing by Shinnobu Konkaku, Shizukazu Tanuma, Hirokazu Hasegawa

しかしながら、前記従来の構成では、操作パネルシートとの間にニュートンリングが発生し得ない隙間を設けるもので、外力によるたわみや、べこつきにより外観品位が損なわれるという課題を有していた。   However, in the conventional configuration, a gap where Newton rings cannot be generated is provided between the operation panel sheet and there is a problem that appearance quality is impaired due to deflection or stickiness due to external force.

本発明は、前記従来の課題を解決するもので、操作パネルシートの背面にたわみ・べこつき防止用の透明プレートを微小隙間で設けながら、ニュートンリングの発生しない表示装置を提供することを目的とする。   The present invention solves the above-described conventional problems, and an object thereof is to provide a display device that does not generate Newton rings while providing a transparent plate for preventing deflection and sticking on the back surface of an operation panel sheet with a minute gap. And

前記従来の課題を解決するために、本発明の高周波加熱装置は、設定及び動作状態を表示する液晶表示管等による表示管と、表示管と対向する前面を透明な表示窓とし、表示窓部以外は印刷処理した透明なフィルム又は薄厚のシートよりなる操作パネルシートと、前記操作パネルシート上に配設した複数の設定用及び操作用スイッチと、前記操作パネルシートの表示窓部裏面には操作パネルシートに近接して設けた透明プレートを備え、前記表示管は回路基板に電極を介して半田等で接続固定され、かつ前記操作パネルシートの透明
窓部の裏面又は前記透明プレートの操作パネルシート対向面のどちらか一方の面に、透明度を実用上損なわない程度の微量の微粒子状粉体を透明インクに混入したインクにて印刷処理した表示装置を設け、前記透明インクに混入する微粒子状の粉体の量を、インクの容積比約0.3%以上、1%以下としたインクにて印刷し、前記透明インクに混入する微粒子状の粉体の材質をガラス粉末等の無機質材としたインクにて印刷した表示装置を有するものである。
In order to solve the above-described conventional problems, a high-frequency heating device according to the present invention includes a display tube formed by a liquid crystal display tube or the like for displaying settings and operating states, and a front surface facing the display tube as a transparent display window. Other than the above, an operation panel sheet made of a transparent film or a thin sheet that has been printed, a plurality of setting and operation switches arranged on the operation panel sheet, and an operation on the back of the display window portion of the operation panel sheet A transparent plate provided in the vicinity of the panel sheet, the display tube is connected and fixed to the circuit board with solder or the like via an electrode, and the operation panel sheet is transparent
A display device in which a minute amount of fine particle powder that does not impair the transparency in practical use is printed on either the back surface of the window or the operation panel sheet facing surface of the transparent plate with an ink mixed with the transparent ink. And the amount of the fine particle powder mixed in the transparent ink is printed with an ink whose volume ratio of ink is about 0.3% or more and 1% or less, and the fine particle powder mixed in the transparent ink the material of the body is to have a display device printed in ink and inorganic material such as glass powder.

これによって、インクの膜厚と混入した微粒子による印刷面の凹凸で面状態での接触ができなくなると共に、透明プレートとの間は光の波長付近での接触状態が無くなり、ニュートンリングを防止することができる。   This prevents contact in the surface state due to the unevenness of the printing surface due to the ink film thickness and mixed fine particles, and also prevents contact with the transparent plate near the wavelength of light, preventing Newton rings. Can do.

本発明の表示装置によれば、操作パネルシートの透明窓部の裏面又は前記透明プレートの操作パネルシート対向面のどちらか一方の面に、透明度を実用上損なわない程度の微量の微粒子状粉体を透明インクに混入したインクにて印刷処理したことにより、操作パネルシートと透明プレートとの接触面にインクと微粒子での凹凸面を作ることができて、実質的に面状での接触が回避できるためニュートンリングを防止することができる。   According to the display device of the present invention, a minute amount of fine particle powder on the back surface of the transparent window portion of the operation panel sheet or the operation panel sheet facing surface of the transparent plate is such that the transparency is not practically impaired. By printing with ink mixed in transparent ink, it is possible to create an uneven surface with ink and fine particles on the contact surface between the operation panel sheet and the transparent plate, substantially avoiding contact in the form of a plane Therefore, Newton's ring can be prevented.

第1の発明は、設定及び動作状態を表示する液晶表示管等による表示管と、表示管と対向する前面を透明な表示窓とし、表示窓部以外は印刷処理した透明なフィルム又は薄厚のシートよりなる操作パネルシートと、前記操作パネルシート上に配設した複数の設定用及び操作用スイッチと、前記操作パネルシートの表示窓部裏面には操作パネルシートに近接して設けた透明プレートを備え、前記表示管は回路基板に電極を介して半田等で接続固定され、かつ前記操作パネルシートの透明窓部の裏面又は前記透明プレートの操作パネルシート対向面のどちらか一方の面に、透明度を実用上損なわない程度の微量の微粒子状粉体を透明インクに混入したインクにて印刷処理した表示装置を設け、前記透明インクに混入する微粒子状の粉体の量を、インクの容積比約0.3%以上、1%以下としたインクにて印刷し、前記透明インクに混入する微粒子状の粉体の材質をガラス粉末等の無機質材としたインクにて印刷した表示装置を有する高周波加熱装置とすることで、インクの膜厚と混入した微粒子による表面の凹凸とで面状態での接触が回避されると共に、光の波長に比べてかなり大きな距離が確保できるため、ニュートンリングが防止できる。 The first aspect of the present invention is a display tube using a liquid crystal display tube or the like for displaying settings and operating states, and a transparent display window on the front surface facing the display tube, and a transparent film or thin sheet printed except for the display window portion An operation panel sheet, a plurality of setting and operation switches arranged on the operation panel sheet, and a transparent plate provided in the vicinity of the operation panel sheet on the back surface of the display window portion of the operation panel sheet. The display tube is connected and fixed to the circuit board with solder or the like via electrodes, and the transparency is applied to either the back surface of the transparent window portion of the operation panel sheet or the operation panel sheet facing surface of the transparent plate. A display device is provided in which a minute amount of fine particle powder that does not impair practically is printed with ink mixed with transparent ink, and the amount of fine particle powder mixed with the transparent ink is adjusted. Printed with ink having a volume ratio of about 0.3% to 1%, and printed with ink made of an inorganic material such as glass powder as the fine particle powder mixed in the transparent ink By using a high-frequency heating device having a device , the contact in the surface state is avoided by the film thickness of the ink and the unevenness of the surface due to the mixed fine particles, and a considerably large distance can be secured compared to the wavelength of light, Newton rings can be prevented.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(実施の形態1)
図4は、従来の例でも使用したが、表示装置1を有する一般的な高周波加熱装置の外観図の例を示し、設定用の複数の操作用スイッチ2と共に操作パネル3に構成された表示装置1と、把手5等を有する扉4とボデー6で構成される。同じように従来例でも使用したが、図1はこのような機器における表示装置1の断面図を示し、図2は図1のA部の拡大図を示し、図3は操作パネルシートの透明窓部の断面拡大図を示す。操作パネル本体9の内部に設けた表示管8は回路基板10に電極11を介して半田12等で接続固定され、操作パネル本体9の表面側には透明なフィルム等よりなる操作パネルシート7が両面テープ等で貼り付けて構成される。
(Embodiment 1)
FIG. 4 shows an example of an external view of a general high-frequency heating device having a display device 1, which is also used in the conventional example. The display device is configured on the operation panel 3 together with a plurality of operation switches 2 for setting. 1, a door 4 having a handle 5 and the like, and a body 6. Similarly, FIG. 1 shows a cross-sectional view of the display device 1 in such a device, FIG. 2 shows an enlarged view of part A of FIG. 1, and FIG. 3 shows a transparent window of the operation panel sheet. The cross-sectional enlarged view of a part is shown. The display tube 8 provided inside the operation panel body 9 is connected and fixed to the circuit board 10 via the electrodes 11 with solder 12 or the like, and an operation panel sheet 7 made of a transparent film or the like is provided on the surface side of the operation panel body 9. Affixed with double-sided tape.

この操作パネルシート7は、表示管8に対応した大きさLの表示窓が設けられ、表示窓の裏面には微粒子の粉体15を混入した透明インク14が印刷され、この表示窓を覆い操作パネル3の外郭を構成する。表示管8と操作パネルシート7との間には外力より表示管8を守ると共に、フィルムのみの場合外力で容易にたわみが生じないように透明プレート13を設ける。   The operation panel sheet 7 is provided with a display window of a size L corresponding to the display tube 8, and transparent ink 14 mixed with fine powder 15 is printed on the back surface of the display window to cover the display window. The outline of the panel 3 is formed. A transparent plate 13 is provided between the display tube 8 and the operation panel sheet 7 so as to protect the display tube 8 from external force and to prevent the film from being easily bent by external force.

なお、以前より操作パネルシート裏面に透明インクでの印刷を施すことでニュートンリングを防止する方法が提案されているが、一般的な透明インクでの印刷では、印刷面のばらつきで凹凸のある部分と平滑な部分とが存在し、平滑な面の部分ではニュートンリングが発生してしまうため実用にならなかった。   In addition, a method for preventing Newton's ring by printing with transparent ink on the back of the operation panel sheet has been proposed. However, in general printing with transparent ink, uneven portions due to variations in the printing surface. And a smooth portion, and a Newton ring occurs on the smooth surface portion.

均一な凹凸面を設けることができれば対策となるのは物理現象の理論より明白なため、印刷の版を種々検討して試みてみた。例えばドット印刷で単位面積当たりのドット(点)数を変更したもの、あるいは微小な格子状の版で線間の寸法を変更したもの等数多くのサンプルを作成し検討を行った。   If it is possible to provide a uniform uneven surface, it is obvious from the theory of physical phenomena that a countermeasure can be taken. Therefore, various printing plates were examined and tried. For example, many samples were created and examined, such as those in which the number of dots (dots) per unit area was changed by dot printing, or in which the dimensions between lines were changed in a fine grid-like plate.

その結果として、意図通りの印刷ができたらニュートンリングの防止策となることは確認できたが、透明度の確保のためにはかなり微細なドットまたは格子状を必要とし、数枚印刷すると印刷目がつぶれて印刷ムラ状となり、ドットまたは格子間を大きく取ると表示窓としての透明度を損なうばかりでなく、表示管の文字および記号の輪郭がギザギザ状になり、表示装置としては好ましくないことがわかった。本発明は、このような種々の検討の上になされたものである。   As a result, we were able to confirm that Newton's ring could be prevented if printing was performed as intended, but it required fairly fine dots or grids to ensure transparency. It turned out to be squeezed and printed unevenly, and if dots or lattices were made large, not only the transparency of the display window was impaired, but also the outline of characters and symbols on the display tube became jagged, which was not preferable for a display device. . The present invention has been made after such various studies.

以上のように構成された表示装置について、以下その作用を説明する。   The operation of the display device configured as described above will be described below.

まず、操作パネルシートの透明窓部の裏面又は前記透明プレートの操作パネルシート対向面のどちらか一方の面に、透明度を実用上損なわない程度の微量の微粒子状粉体を透明インクに混入したインクにて印刷処理したことで、インクの膜厚と混入した微粒子による表面の凹凸とで面状態での接触が回避されると共に、光の波長に比べてかなり大きな距離が確保できるため、確実にニュートンリングが防止できる。   First, an ink in which a minute amount of fine particle powder that does not impair the transparency in practical use is mixed into the transparent ink on either the back surface of the transparent window portion of the operation panel sheet or the operation panel sheet facing surface of the transparent plate. In this case, the contact with the surface is avoided due to the film thickness of the ink and the unevenness of the surface due to the mixed fine particles, and a considerably large distance can be secured compared to the wavelength of the light, so Newton is surely Ring can be prevented.

また、インクに混入する微粒子の粉体の量を、インクの容積比約0.3%以上1%以下とすることで、表示窓としての透明度を実質上損なうことなくニュートンリング防止効果を発揮できる。   In addition, by setting the amount of fine particle powder mixed in the ink to a volume ratio of about 0.3% to 1%, the Newton's ring prevention effect can be exhibited without substantially impairing transparency as a display window. .

さらに、前記インクに混入する微粒子の粉体をガラス粉末等の無機質材とすることで、大気中での紫外線等による変色等の弊害も防止でき、耐候性に優れたインクとすることができる。   Further, by using fine particles of powder mixed in the ink as an inorganic material such as glass powder, adverse effects such as discoloration due to ultraviolet rays or the like in the atmosphere can be prevented, and ink having excellent weather resistance can be obtained.

また、前記微粒子の大きさは、少なくとも赤色光の最大波長である約0.8μm以上で透明度を実用上損なわない大きさ以下とすることで、隙間が密着状態でも粒子の大きさとインクの膜厚とで光の波長からすると十分な距離が取れるためニュートンリングを防止できる。   The size of the fine particles is at least about 0.8 μm, which is the maximum wavelength of red light, and below the size that does not impair the transparency in practical use. Since a sufficient distance can be obtained from the wavelength of light, Newton rings can be prevented.

以上のように、本発明にかかる表示装置は、印刷で安定した凹凸を操作パネルシートと透明プレート接触面に設けることができるため、操作パネルシートのたわみ・そり対策の透明プレートと近接して設けてもニュートンリングの生じない表示装置が可能となるもので、操作パネルシートを用いたあらゆる機器の表示装置として適用できるものである。   As described above, since the display device according to the present invention can provide unevenness that is stable in printing on the operation panel sheet and the transparent plate contact surface, the display device is provided in close proximity to the transparent plate for preventing deflection and warpage of the operation panel sheet. However, a display device that does not cause Newton's rings is possible, and can be applied as a display device for any device using an operation panel sheet.

本発明の実施の形態1における表示装置の略断面図Schematic cross-sectional view of a display device in Embodiment 1 of the present invention 図1におけるA部の詳細図Detailed view of part A in FIG. 図2における操作パネルシートの断面拡大図2 is an enlarged cross-sectional view of the operation panel sheet in FIG. 一般的な表示装置を有する機器の外観図External view of equipment with general display device 従来の表示装置の略断面図Schematic sectional view of a conventional display device 図5におけるB部の詳細図Detailed view of part B in FIG. 従来の表示装置の略断面図Schematic sectional view of a conventional display device

符号の説明Explanation of symbols

1 表示装置
2 操作用スイッチ
3 操作パネル
7 操作パネルシート
8 表示管
13 透明プレート
14 透明インク
15 微粒子の粉体
DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Operation switch 3 Operation panel 7 Operation panel sheet 8 Display tube 13 Transparent plate 14 Transparent ink 15 Fine particle powder

Claims (1)

定及び動作状態を表示する液晶表示管等による表示管と、表示管と対向する前面を透明な表示窓とし、表示窓部以外は印刷処理した透明なフィルム又は薄厚のシートよりなる操作パネルシートと、前記操作パネルシート上に配設した複数の設定用及び操作用スイッチと、前記操作パネルシートの表示窓部裏面には操作パネルシートに近接して設けた透明プレートを備え、前記表示管は回路基板に電極を介して半田等で接続固定され、かつ前記操作パネルシートの透明窓部の裏面又は前記透明プレートの操作パネルシート対向面のどちらか一方の面に、透明度を実用上損なわない程度の微量の微粒子状粉体を透明インクに混入したインクにて印刷処理した表示装置を設け、前記透明インクに混入する微粒子状の粉体の量を、インクの容積比約0.3%以上、1%以下としたインクにて印刷し、前記透明インクに混入する微粒子状の粉体の材質をガラス粉末等の無機質材としたインクにて印刷した表示装置を有する高周波加熱装置A display tube according to the liquid crystal display tubes for displaying the set Jooyobi operation state, the operation panel sheet and the display tube opposite to the front surface of the transparent display window, which is other than the display window portion made of a transparent film or thin sheet and printing process If a plurality of setup and operation switch which is disposed on the operation panel on the sheet, wherein the display window portion rear surface of the operation panel sheet comprising a transparent plate provided close to the operation panel sheet, said display tube A degree to which the transparency is practically not impaired on either the back surface of the transparent window portion of the operation panel sheet or the operation panel sheet facing surface of the transparent plate via an electrode to the circuit board. a display device printing process in particulate powder entrained ink to clear ink traces provided, the amount of particulate powder mixed in the transparent ink, about the volume ratio of the ink .3% or more, and printed in less than 1% ink, the high frequency heating apparatus having a display device the material of the particulate powder was printed with ink and inorganic material such as glass powder mixed into the transparent ink .
JP2005152106A 2005-05-25 2005-05-25 High frequency heating device Expired - Fee Related JP4830349B2 (en)

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JP4830349B2 true JP4830349B2 (en) 2011-12-07

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Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0627894A (en) * 1992-03-11 1994-02-04 Nippondenso Co Ltd Display panel
JPH1056290A (en) * 1996-06-03 1998-02-24 Nissha Printing Co Ltd Light transmissive electromagnetic wave shield material and its manufacturing method
JPH10112597A (en) * 1996-10-04 1998-04-28 Mitsui Petrochem Ind Ltd Electromagnetic wave shielding body
JP3753482B2 (en) * 1996-10-22 2006-03-08 三井化学株式会社 Transparent laminate and display filter using the same
JP3968155B2 (en) * 1997-09-17 2007-08-29 大日本印刷株式会社 Prism sheet
JP2000023832A (en) * 1998-07-14 2000-01-25 Matsushita Electric Ind Co Ltd Rice cooker
JP2001085153A (en) * 1999-09-13 2001-03-30 Nec Kansai Ltd Electroluminescence lamp
EP1256022A2 (en) * 2000-02-02 2002-11-13 3M Innovative Properties Company Triple layer anti-reflective coating for a touch screen
JP4573946B2 (en) * 2000-05-16 2010-11-04 株式会社きもと Light diffusing sheet
JP4033695B2 (en) * 2002-03-25 2008-01-16 株式会社きもと Newton ring prevention sheet
JP3869339B2 (en) * 2002-09-20 2007-01-17 象印マホービン株式会社 Sealing structure of lid panel in rice cooker
JP3858878B2 (en) * 2003-09-04 2006-12-20 松下電器産業株式会社 Water use equipment

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