JPH11316553A - Portable electronic equipment - Google Patents
Portable electronic equipmentInfo
- Publication number
- JPH11316553A JPH11316553A JP10135969A JP13596998A JPH11316553A JP H11316553 A JPH11316553 A JP H11316553A JP 10135969 A JP10135969 A JP 10135969A JP 13596998 A JP13596998 A JP 13596998A JP H11316553 A JPH11316553 A JP H11316553A
- Authority
- JP
- Japan
- Prior art keywords
- light
- guide member
- light guide
- liquid crystal
- portable electronic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133616—Front illuminating devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液晶表示デバイス
を有する携帯用電子機器に関する。[0001] The present invention relates to a portable electronic device having a liquid crystal display device.
【０００２】[0002]
【従来の技術】近年、コンピュータや携帯端末機器に使
用されるディスプレイデバイスとしての液晶表示デバイ
スがある。そして、この液晶表示デバイスに使用される
液晶は、タイプから透過型、半透過型、反射型に分ける
ことができる。2. Description of the Related Art In recent years, there has been a liquid crystal display device as a display device used for computers and portable terminal devices. The liquid crystal used in the liquid crystal display device can be classified into a transmissive type, a transflective type, and a reflective type.
【０００３】透過型の液晶を用いた液晶表示デバイスは
ノートＰＣや大型の端末機器に用いられており、冷陰極
管によるバックライトで表示を明るく見易くしている。
しかしながら、この透過型の液晶を用いた液晶表示デバ
イスは消費電力が大きく且つ部品が大きいため携帯型に
は向かない。[0003] Liquid crystal display devices using transmissive liquid crystals are used in notebook PCs and large terminal equipment, and the display is made bright and easy to see by a backlight using a cold cathode tube.
However, a liquid crystal display device using this transmission type liquid crystal is not suitable for a portable type because of its large power consumption and large parts.
【０００４】また、半透過型の液晶を用いた液晶表示デ
バイスを備えた携帯用電子機器としては、図６に示すも
のがある。この携帯用電子機器は、照明有り無しの両方
の状態で表示が見えるようにしたものであり、照明には
面発光体としてのＥＬが用いられている。FIG. 6 shows a portable electronic device provided with a liquid crystal display device using a transflective liquid crystal. In this portable electronic device, a display can be viewed in both a state with and without illumination, and an EL as a surface light emitter is used for illumination.
【０００５】すなわち、この携帯用電子機器は、下ケー
ス４１内に基板４２が収納してあって、この基板４２の
上方には液晶パネルホルダー４３が収納してあり、この
液晶パネルホルダー４３には面発光体としてのＥＬ４４
と液晶パネル４５とが載せてあり、そして、液晶パネル
４５上にはスペーサ４６を介してタッチパネル４７が重
ねてあり、その上に上ケース４８が重ねてあって、この
上ケース４８を下ケース４１に係脱可能に係合すること
により、液晶パネルホルダー４３と、ＥＬ４４と、液晶
パネル４５と、タッチパネル４７とが上下方向に挟圧保
持された状態になっている。That is, in this portable electronic device, a substrate 42 is accommodated in a lower case 41, and a liquid crystal panel holder 43 is accommodated above the substrate 42. EL44 as a surface light emitter
And a liquid crystal panel 45, and a touch panel 47 is overlaid on the liquid crystal panel 45 via a spacer 46, and an upper case 48 is overlaid thereon. , The liquid crystal panel holder 43, the EL 44, the liquid crystal panel 45, and the touch panel 47 are in a state where they are squeezed and held in the vertical direction.
【０００６】上記したように、半透過型の液晶を用いた
液晶表示デバイスは、照明の入切りの切換え操作をする
ことにより消費電力を抑えることが可能なため携帯型の
端末にも見られるが、液晶表示の文字とベースのコント
ラストが落ちるという難点がある。また、バックライト
としてのＥＬ４４は寿命が短くメンテナンス性を考慮し
なければならないという欠点があった。As described above, a liquid crystal display device using a transflective liquid crystal can be found in a portable terminal because power consumption can be suppressed by switching on and off the illumination. However, there is a disadvantage that the contrast between the characters on the liquid crystal display and the base is reduced. Further, the EL 44 as a backlight has a shortcoming that its life is short and maintenance properties must be considered.
【０００７】また、反射型は、外光を反射させて液晶表
示を見るというやり方であり、消費電力が低く押さえら
れ、コントラストも有り見やすいという特徴がある。[0007] The reflection type is a method in which external light is reflected and a liquid crystal display is viewed, and is characterized by low power consumption, high contrast, and easy viewing.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、上記し
たように反射型液晶を使用した液晶表示ディバイスは画
面の文字と周囲のコントラストがよいが、外光により表
示の視認を行うため暗い所では表示が見えないという問
題点があった。However, as described above, the liquid crystal display device using the reflection type liquid crystal has a good contrast between the characters on the screen and the surroundings. However, the display is visually recognized in a dark place due to external light. There was a problem of not being able to see.
【０００９】本発明は、上記の問題点に着目して成され
たものであって、その目的とするところは、反射型液晶
を用いて高コントラストを生かし暗い場所では容易に照
明を外光として与えることが可能になって、表示の視認
が良好になると共に、消費電力を極力抑え得る携帯用電
子機器を提供することにある。The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to use a reflection type liquid crystal to make use of a high contrast and to easily illuminate outside light in a dark place. It is an object of the present invention to provide a portable electronic device that can provide a display, improve display visibility, and minimize power consumption.
【００１０】[0010]
【課題を解決するための手段】上記の目的を達成するた
めに、請求項１の発明の係る携帯用電子機器は、表示デ
バイスとして反射型液晶パネルを用いた携帯用電子機器
であって、機器本体内に、入射光を反射型液晶パネル側
に導く導光部材と、光源と、この光源からの光を導光部
材に導くリフレクターとを設け、且つ導光部材の表側に
透明な板状体を配置するようにしたことを特徴とする。In order to achieve the above object, a portable electronic device according to the present invention is a portable electronic device using a reflective liquid crystal panel as a display device. A light guide member for guiding incident light to the reflective liquid crystal panel side, a light source, and a reflector for guiding light from the light source to the light guide member are provided in the main body, and a transparent plate-shaped body is provided on the front side of the light guide member. Are arranged.
【００１１】また、上記の目的を達成するために、請求
項２の発明の係る携帯用電子機器は、請求項１に記載の
携帯用電子機器において、板状体がタッチパネルであ
る。According to a second aspect of the present invention, there is provided a portable electronic apparatus according to the first aspect, wherein the plate-like body is a touch panel.
【００１２】また、上記の目的を達成するために、請求
項３の発明の係る携帯用電子機器は、請求項１又は請求
項２に記載の携帯用電子機器において、導光部材に光を
入射させるための光源に発光ダイオードを用い、リフレ
クターにより導かれた光が入射する導光部材の入射部に
光を一様に拡散させる拡散シートを配した。According to a third aspect of the present invention, there is provided a portable electronic device according to the first or second aspect, wherein light is incident on the light guide member. A light-emitting diode was used as a light source for this purpose, and a diffusion sheet for uniformly diffusing the light was provided at an incident portion of the light guide member where the light guided by the reflector was incident.
【００１３】また、上記の目的を達成するために、請求
項４の発明の係る携帯用電子機器は、請求項２に記載の
携帯用電子機器において、導光部材を、ある程度の剛性
を有する厚さの透明なアクリル樹脂板で構成して、この
導光部材の表面に、入射光を反射型液晶パネル側に導く
反射面を形成し、且つタッチパネルの上、下電極をフィ
ルムで構成するようにした。According to a fourth aspect of the present invention, there is provided a portable electronic device according to the second aspect of the present invention, wherein the light guide member has a thickness having a certain rigidity. To form a reflective surface for guiding incident light to the reflective liquid crystal panel side on the surface of the light guide member, and to form the upper and lower electrodes of the touch panel with films. did.
【００１４】また、上記の目的を達成するために、請求
項５の発明の係る携帯用電子機器は、請求項３又は請求
項４に記載の携帯用電子機器において、リフレクターに
角度を付けて、導光部材の入射部と発光ダイオードを実
装した基板との位置関係が直線上の配置にならないよう
にした。According to a fifth aspect of the present invention, there is provided a portable electronic device according to the third or fourth aspect, wherein the reflector is provided with an angle, The positional relationship between the incident portion of the light guide member and the substrate on which the light emitting diode is mounted is not arranged in a straight line.
【００１５】また、上記の目的を達成するために、請求
項６の発明の係る携帯用電子機器は、請求項５に記載の
携帯用電子機器において、発光ダイオードを、他の電子
部品と同一平面上に位置させてメイン基板に実装するよ
うにした。According to a sixth aspect of the present invention, there is provided a portable electronic device according to the sixth aspect, wherein the light emitting diode is provided on the same plane as other electronic components. It was mounted on the main board with it positioned above.
【００１６】また、上記の目的を達成するために、請求
項７の発明の係る携帯用電子機器は、請求項３乃至請求
項６に記載の携帯用電子機器において、発光ダイオード
の周囲に、光が反射する反射手段を講じて、リフレクタ
ーから導光部材に入射されずに発光ダイオード近くまで
逆に反射してきた光を、再度、導光部材に入射させるよ
うにした。According to a seventh aspect of the present invention, there is provided a portable electronic device according to the third aspect of the present invention, wherein the light emitting diode is provided around the light emitting diode. The light reflected from the reflector to the vicinity of the light emitting diode without being incident on the light guide member from the reflector is again incident on the light guide member.
【００１７】かかる構成により、反射型液晶パネルを用
いて高コントラストを生かし暗い場所では容易に照明を
外光として与えることが可能になって、表示の視認が良
好になると共に、消費電力を極力抑え得るし、また、導
光部材の上部に装着した透明な板状体またはタッチパネ
ルにより、導光部材の表面を傷付けたり汚れから保護す
ることができ、照明機能を維持することができる。With this configuration, it is possible to easily provide illumination as external light in a dark place by using a reflective liquid crystal panel to take advantage of high contrast, thereby improving display visibility and minimizing power consumption. Moreover, the surface of the light guide member can be protected from being damaged or stained by the transparent plate or the touch panel mounted on the upper portion of the light guide member, and the lighting function can be maintained.
【００１８】[0018]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１９】請求項１の発明に係る携帯用電子機器は、
表示デバイスとして反射型液晶パネルを用いた携帯用電
子機器であって、機器本体内に、入射光を反射型液晶パ
ネル側に導く導光部材と、光源と、この光源からの光を
導光部材に導くリフレクターとを設け、且つ導光部材の
表側に透明な板状体を配置するようにしたことを特徴と
する。The portable electronic device according to the first aspect of the present invention comprises:
A portable electronic device using a reflective liquid crystal panel as a display device, wherein a light guide member for guiding incident light to the reflective liquid crystal panel side, a light source, and a light guide member for transmitting light from the light source are provided in the device body. , And a transparent plate-shaped body is arranged on the front side of the light guide member.
【００２０】かかる構成により、反射型液晶パネルを用
いて高コントラストを生かし暗い場所では容易に照明を
外光として与えることが可能になって、表示の視認が良
好になると共に、消費電力を極力抑え得るし、また、導
光部材の上部に装着した透明な板状体により、導光部材
の表面を傷付けたり汚れから保護することができ、照明
機能を維持することができる。With this configuration, it is possible to easily provide illumination as external light in a dark place by utilizing a high contrast by using a reflection type liquid crystal panel, thereby improving display visibility and minimizing power consumption. In addition, the surface of the light guide member can be protected from being scratched or stained by the transparent plate-shaped member mounted on the light guide member, and the lighting function can be maintained.
【００２１】また、請求項２の発明に係る携帯用電子機
器は、請求項１に記載の携帯用電子機器において、板状
体がタッチパネルである。According to a second aspect of the present invention, in the portable electronic device according to the first aspect, the plate-like body is a touch panel.
【００２２】かかる構成により、上記した請求項１の発
明の作用効果と同様な作用効果を奏し得るばかりか、導
光部材の上部に装着したタッチパネルにより、導光部材
の表面を傷付けたり汚れから保護することができ、照明
機能を維持することができる。With this configuration, not only can the same operation and effect as the above-described invention of claim 1 be obtained, but also the surface of the light guide member can be protected from damage and dirt by the touch panel mounted on the light guide member. Lighting function can be maintained.
【００２３】また、請求項３の発明に係る携帯用電子機
器は、請求項１又は請求項２に記載の携帯用電子機器に
おいて、導光部材に光を入射させるための光源に発光ダ
イオードを用い、リフレクターにより導かれた光が入射
する導光部材の入射部に光を一様に拡散させる拡散シー
トを配した。A portable electronic device according to a third aspect of the present invention is the portable electronic device according to the first or second aspect, wherein a light emitting diode is used as a light source for allowing light to enter the light guide member. In addition, a diffusion sheet for uniformly diffusing the light was provided at an incident portion of the light guide member where the light guided by the reflector was incident.
【００２４】かかる構成により、上記した請求項１の発
明の作用効果と同様な作用効果を奏し得るばかりか、発
光ダイオードは点光源であるが、使用個数を増やし、導
光部材への入射時に拡散シートで入射光を拡散させるこ
とで一様な光を作り、導光部材の反射の光むらをなくす
ことが可能となる。発光ダイオードを上記構成で用いる
ことにより、安価で小形化、光源部品の長寿命化が図れ
る照明構造を構成できる。また、低消費電力による電池
寿命の長時間化が図れる。With this configuration, not only the same effects as those of the first aspect of the present invention can be obtained, but also the light emitting diodes are point light sources. By diffusing the incident light with the sheet, uniform light can be created, and it is possible to eliminate uneven light reflected by the light guide member. By using the light-emitting diode in the above configuration, an illumination structure can be formed which is inexpensive, small-sized, and has a long light source component life. In addition, battery life can be prolonged due to low power consumption.
【００２５】また、請求項４の発明に係る携帯用電子機
器は、請求項２に記載の携帯用電子機器において、導光
部材を、ある程度の剛性を有する厚さの透明なアクリル
樹脂板で構成して、この導光部材の表面に、入射光を反
射型液晶パネル側に導く反射面を形成し、且つタッチパ
ネルの上、下電極をフィルムで構成するようにした。In a portable electronic device according to a fourth aspect of the present invention, in the portable electronic device according to the second aspect, the light guide member is formed of a transparent acrylic resin plate having a certain rigidity and a thickness. Then, on the surface of the light guide member, a reflection surface for guiding incident light to the reflection type liquid crystal panel was formed, and the upper and lower electrodes of the touch panel were formed of films.
【００２６】かかる構成により、上記した請求項１の発
明の作用効果と同様な作用効果を奏し得るばかりか、導
光部材の厚みを、ある程度の剛性を有する厚さ、例えば
１〜２ｍｍにすることで、従来のタッチパネルの下電極
に使用されているガラス板の剛性機能を兼ねさせ、タッ
チパネルを表面から押下しても液晶面には負荷が加わら
ず、また、タッチパネルの上、下電極を共にフィルムで
構成することでタッチパネル及び導光部材の総合厚みを
抑え、液晶点灯時の表示視差（奥行き感）を小さく（軽
減）することができる。According to this structure, not only the same operation and effect as the above-mentioned invention can be obtained, but also the thickness of the light guide member is set to a thickness having a certain rigidity, for example, 1 to 2 mm. In addition, the rigidity of the glass plate used for the lower electrode of the conventional touch panel is also used, so that even if the touch panel is pressed down from the surface, no load is applied to the liquid crystal surface. With this configuration, the total thickness of the touch panel and the light guide member can be reduced, and the display parallax (perception of depth) when the liquid crystal is turned on can be reduced (reduced).
【００２７】また、上記の目的を達成するために、請求
項５の発明に係る携帯用電子機器は、請求項３又は請求
項４に記載の携帯用電子機器において、リフレクターに
角度を付けて、導光部材の入射部と発光ダイオードを実
装した基板との位置関係が直線上の配置にならないよう
にした。In order to achieve the above object, a portable electronic device according to a fifth aspect of the present invention is the portable electronic device according to the third or fourth aspect, wherein an angle is formed on the reflector, The positional relationship between the incident portion of the light guide member and the substrate on which the light emitting diode is mounted is not arranged in a straight line.
【００２８】かかる構成により、上記した請求項１の発
明の作用効果と同様な作用効果を奏し得るばかりか、リ
フレクターに角度付けることで光源となる基板の位置が
奥行き方向だけでなく高さ方向に配置することで装置の
小形化を図れる。According to this configuration, not only the same operation and effect as the above-described first embodiment can be obtained, but also the angle of the reflector allows the position of the substrate serving as the light source not only in the depth direction but also in the height direction. The arrangement can reduce the size of the device.
【００２９】また、上記の目的を達成するために、請求
項６の発明に係る携帯用電子機器は、請求項５に記載の
携帯用電子機器において、発光ダイオードを、他の電子
部品と同一平面上に位置させてメイン基板に実装するよ
うにした。According to another aspect of the present invention, there is provided a portable electronic device according to the present invention, wherein the light emitting diode is provided on the same plane as other electronic components. It was mounted on the main board with it positioned above.
【００３０】かかる構成により、上記した請求項１の発
明の作用効果と同様な作用効果を奏し得るばかりか、光
源基板やケーブル、コネクタを廃止することが可能にな
り、安価で且つ機器の小形化を図りながら機能を実現す
ることができる。With this configuration, not only can the same operation and effect as those of the first aspect of the invention be achieved, but also the light source board, the cable and the connector can be eliminated, thereby reducing the cost and the size of the device. The function can be realized while aiming at.
【００３１】また、上記の目的を達成するために、請求
項７の発明に係る携帯用電子機器は、請求項３乃至請求
項６に記載の携帯用電子機器において、発光ダイオード
の周囲に、光が反射する反射手段を講じて、リフレクタ
ーから導光部材に入射されずに発光ダイオード近くまで
逆に反射してきた光を、再度、導光部材に入射させるよ
うにした。In order to achieve the above object, a portable electronic device according to a seventh aspect of the present invention is the portable electronic device according to any one of the third to sixth aspects, wherein a light emitting diode is provided around the light emitting diode. The light reflected from the reflector to the vicinity of the light emitting diode without being incident on the light guide member from the reflector is again incident on the light guide member.
【００３２】かかる構成により、上記した請求項１の発
明の作用効果と同様な作用効果を奏し得るばかりか、導
光部材に入射されるはずの光がリフレクターや導光部材
の形状、拡散シートの貼り付け条件等で入射されず、光
源近くまでに返ってきた場合に、光源周囲を反射手段、
例えば反射色に染めることで、再度リフレクターを通過
し導光部材に入射されるため、入射光が増加し導光部材
の発光効率が向上する。According to this structure, not only the same operation and effect as the above-mentioned invention of claim 1 can be obtained, but also the light which is to be incident on the light guide member, the shape of the reflector and the light guide member, and the shape of the diffusion sheet. If the light does not enter due to the sticking conditions and returns near the light source, reflection means around the light source,
For example, by dyeing the light into a reflection color, the light again passes through the reflector and enters the light guide member, so that the incident light increases and the light emission efficiency of the light guide member improves.
【００３３】（実施の形態例１）本発明に係る携帯用電
子機器の実施の形態例１を図１乃至図３に示す。(Embodiment 1) FIGS. 1 to 3 show Embodiment 1 of a portable electronic device according to the present invention.
【００３４】本発明に係る携帯用電子機器は、下ケース
１と、メイン基板２と、液晶パネルホルダー３と、反射
型液晶パネル４と、導光部材５と、リフレクター６と、
透明な板状体としてのタッチパネル７と、上ケース８と
から構成してある。そして、上、下ケース１、８で機器
本体を構成している。The portable electronic device according to the present invention comprises a lower case 1, a main substrate 2, a liquid crystal panel holder 3, a reflective liquid crystal panel 4, a light guide member 5, a reflector 6,
It comprises a touch panel 7 as a transparent plate and an upper case 8. The upper and lower cases 1 and 8 constitute a device body.
【００３５】そして、前記下ケース１は、長方形状の底
面部１ａの周部に周壁部１ｂを立ちあげて構成されたケ
ース本体１Ａを有しており、このケース本体１Ａの一隅
には電池収容部１９が形成してあり、また、底面部１ａ
には３つの隅部及び電池収容部１９の隅部側に寄せて取
付座２０が形成してあり、また、底面部１ａの周壁部１
ｂ寄りには、周方向に所定の間隔をおいて複数のスペー
サ９が設けてあり、これらのスペーサ９は底面部１ａか
ら周壁部１ｂの内面に跨がるリブから構成してある。The lower case 1 has a case body 1A formed by raising a peripheral wall 1b on the periphery of a rectangular bottom 1a, and a battery housing is provided at one corner of the case body 1A. Part 19 is formed, and the bottom part 1a
A mounting seat 20 is formed near the three corners and the corner side of the battery accommodating portion 19.
A plurality of spacers 9 are provided at a predetermined interval in the circumferential direction near b, and these spacers 9 are composed of ribs extending from the bottom surface 1a to the inner surface of the peripheral wall 1b.
【００３６】また、メイン基板２は、下ケース１の底面
部１ａの形状に相似する基板本体２Ａを有しており、こ
の基板本体２Ａの各隅角部には取付用穴１０が設けてあ
り、また、基板本体２Ａの実装面には多数の電子部品１
１が実装してあり、また、基板本体２Ａの実装面には、
その長手方向の一方の辺縁部２ａ寄りに、複数の光源で
ある発光ダイオード（ＬＥＤ）１２が、長手方向に所定
の間隔をおいて実装してある。The main board 2 has a board body 2A similar to the shape of the bottom surface 1a of the lower case 1, and mounting holes 10 are provided at each corner of the board body 2A. A large number of electronic components 1 are mounted on the mounting surface of the substrate body 2A.
1 is mounted, and on the mounting surface of the board body 2A,
A light emitting diode (LED) 12 as a plurality of light sources is mounted at a predetermined interval in the longitudinal direction near one edge 2a in the longitudinal direction.
【００３７】また、前記液晶パネルホルダー３は、下ケ
ース１の底面部１ａの形状に相似するホルダー本体３Ａ
を有しており、このホルダー本体３Ａは、長方形状の面
部１３と、この面部１３の周囲に設けられてこの面部１
３より一段高くされたパネル支持部１４と、このパネル
支持部１４の外にある枠部１５とを有しており、面部１
３の長手方向の一方の辺縁部１３ａには、この面部１３
より一段低くリフレクター設置部１６が形成してあり、
このリフレクター設置部１６には、その長手方向に所定
の間隔で複数の光源用窓部１７が形成してある。また、
ホルダー本体３Ａの面部１３には複数の開口部１８が形
成してある。The liquid crystal panel holder 3 has a holder body 3A similar to the shape of the bottom surface 1a of the lower case 1.
The holder main body 3A is provided with a rectangular surface portion 13 and the surface portion 1 provided around the surface portion 13.
3 and a frame portion 15 outside the panel support portion 14.
3 is provided on one edge 13a in the longitudinal direction.
Reflector installation part 16 is formed one step lower than
The reflector installation portion 16 has a plurality of light source windows 17 formed at predetermined intervals in the longitudinal direction. Also,
A plurality of openings 18 are formed in the surface 13 of the holder body 3A.
【００３８】また、前記反射型液晶パネル４は、２枚の
ガラス板２１、２２の対向側に配置した対向電極板間の
隙間に液晶を充填させたものである。Further, the reflection type liquid crystal panel 4 has a structure in which liquid crystal is filled in a gap between opposed electrode plates disposed on opposite sides of the two glass plates 21 and 22.
【００３９】また、前記導光部材５は、厚さが１〜２ｍ
ｍ程度の透明なアクリル樹脂の板（長方形の板）より構
成してあり、その表面５ｅには、導光部材５の長手方向
に沿うＶ型の溝３１が導光部材５の短手方向に多数形成
してある。これらの溝３１は、導光部材５の長手方向の
一方の辺縁部５ａ、すなわち光の入射部イ側の傾斜面
が、この入射部イから入射した光ハを略直角方向に反射
させる反射面３１Ａに成されている。The light guide member 5 has a thickness of 1-2 m.
m of a transparent acrylic resin plate (rectangular plate), and a V-shaped groove 31 along the longitudinal direction of the light guide member 5 is formed on its surface 5e in the short direction of the light guide member 5. Many are formed. These grooves 31 are formed so that one edge 5a of the light guide member 5 in the longitudinal direction, that is, the inclined surface on the side of the light incident portion A reflects the light C incident from the incident portion A in a substantially right angle direction. The surface 31A is formed.
【００４０】また、導光部材５の長手方向の一方の辺縁
部５ａを除く他の辺縁部５ｂ、５ｃ、５ｄには枠部２３
が設けてあり、一方の辺縁部５ａの端面２４には拡散シ
ート２５が取り付けてある。また、この導光部材５の一
方の辺縁部５ａにはリフレクター６が取り付けてある。The frame 23 is provided on the other edges 5b, 5c and 5d except for one edge 5a in the longitudinal direction of the light guide member 5.
Is provided, and a diffusion sheet 25 is attached to the end face 24 of the one edge portion 5a. A reflector 6 is attached to one edge 5a of the light guide member 5.
【００４１】すなわち、このリフレクター６は、内側反
射板２６と、外側反射板２７と、２つの端部反射板２８
とを備えており、内側反射板２６は、その取付部２６Ａ
に対して略直角に反射面部２６Ｂを形成して構成してあ
り、また、外側反射板２７は、その取付部２７Ａに対し
て鈍角に反射面部２７Ｂを形成して構成してある。そし
て、内、外側反射板２６、２７は、その取付部２６Ａ、
２７Ａが平行するように、その両端部を端部反射板２８
を介して互いに連結してある。That is, the reflector 6 includes an inner reflector 26, an outer reflector 27, and two end reflectors 28.
The inner reflection plate 26 has a mounting portion 26A.
The outer reflecting plate 27 is formed by forming the reflecting surface portion 27B at an obtuse angle with respect to the mounting portion 27A. The inner and outer reflectors 26 and 27 are attached to their mounting portions 26A,
27A are parallel to each other at both ends.
Are connected to each other.
【００４２】そして、リフレクター６は、その取付部２
６Ａ、２７Ａ間に導光部材５の長手方向の一方の辺縁部
５ａが挿入されるようにして、この導光部材５に取り付
けてある。The reflector 6 is attached to the mounting portion 2
The light guide member 5 is attached to the light guide member 5 such that one longitudinal edge 5a of the light guide member 5 is inserted between 6A and 27A.
【００４３】また、タッチパネル７はその周部の枠部２
９を有しており、また、上ケース８は、その面部８Ａに
長方形状の開口窓部３０を有している。そして、タッチ
パネル７の上、下電極（図示せず）はフィルムで構成し
てある。The touch panel 7 has a frame 2 around the touch panel 7.
9, and the upper case 8 has a rectangular opening window 30 on the surface 8A. The upper and lower electrodes (not shown) of the touch panel 7 are formed of films.
【００４４】そして、前記下ケース１内にメイン基板２
が収納してあって、このメイン基板２は、取付用穴１０
に挿通したビス（図示せず）を取付座２０にねじ込んで
下ケース１に固定してあり、スペーサ９はメイン基板２
の周部を支えている。また、下ケース１内には、メイン
基板２に重ねて液晶パネルホルダー３が収納してあり、
この液晶パネルホルダー３のリフレクター設置部１６の
裏面部１６Ａがメイン基板２に当接していて、複数の発
光ダイオード（ＬＥＤ）１２の一つ一つがリフレクター
設置部１６の光源用窓部１７内に挿入してある。また、
液晶パネルホルダー３の面部１３に設けた開口部１８に
メイン基板２に実装された電子部品１１が挿入してあ
る。Then, the main board 2 is placed in the lower case 1.
The main board 2 has a mounting hole 10
A screw (not shown) inserted into the main board 2 is screwed into the mounting seat 20 and fixed to the lower case 1.
It supports the periphery. A liquid crystal panel holder 3 is housed in the lower case 1 so as to overlap the main board 2.
The back surface 16A of the reflector installation portion 16 of the liquid crystal panel holder 3 is in contact with the main substrate 2, and each of the plurality of light emitting diodes (LEDs) 12 is inserted into the light source window 17 of the reflector installation portion 16. I have. Also,
The electronic component 11 mounted on the main board 2 is inserted into an opening 18 provided in the surface portion 13 of the liquid crystal panel holder 3.
【００４５】また、液晶パネルホルダー３のパネル支持
部１４には反射型液晶パネル４が載せてあり、そして、
反射型液晶パネル４上には導光部材５が重ねてあり、こ
の導光部材５に装着されたリフレクター６の先部分が液
晶パネルホルダー３のリフレクター設置部１６内に挿入
してある。また、導光部材５上にはタッチパネル７が重
ねてあり、その上に上ケース８が重ねてあって、この上
ケース８を下ケース１に係脱可能に係合することによ
り、液晶パネルホルダー３と、反射型液晶パネル４と、
導光部材５と、タッチパネル７とが上下方向に挟圧保持
された状態になっている。The reflection type liquid crystal panel 4 is mounted on the panel supporting portion 14 of the liquid crystal panel holder 3, and
A light guide member 5 is superimposed on the reflective liquid crystal panel 4, and a front portion of a reflector 6 attached to the light guide member 5 is inserted into a reflector installation portion 16 of the liquid crystal panel holder 3. A touch panel 7 is overlaid on the light guide member 5, and an upper case 8 is overlaid thereon. The upper case 8 is removably engaged with the lower case 1 so that the liquid crystal panel holder is provided. 3, a reflective liquid crystal panel 4,
The light guide member 5 and the touch panel 7 are in a state in which the light guide member 5 and the touch panel 7 are squeezed and held vertically.
【００４６】この場合、光源である複数の発光ダイオー
ド（ＬＥＤ）１２の軸線ニに対して導光部材５は直角に
配置されており、リフレクター６が発光ダイオード（Ｌ
ＥＤ）１２が発した光Ｒを、導光部材５の長手方向一方
の辺縁部５ａ、すなわち光の入射部イに導いている。In this case, the light guide member 5 is disposed at right angles to the axis d of the plurality of light emitting diodes (LEDs) 12 as light sources, and the reflector 6 is connected to the light emitting diodes (L).
The light R emitted from the ED) 12 is guided to one edge 5a of the light guide member 5 in the longitudinal direction, that is, the light incident portion A.
【００４７】また、液晶パネルホルダー３のリフレクタ
ー設置部１６の上面１６ａ及びこのリフレクター設置部
１６の光源用窓部１７の周壁面１７ａには光が反射する
反射手段、すなわち、白色の印刷または塗装が施してあ
る。The upper surface 16a of the reflector installation portion 16 of the liquid crystal panel holder 3 and the peripheral wall surface 17a of the light source window 17 of the reflector installation portion 16 are provided with reflecting means for reflecting light, that is, white printing or painting. It has been given.
【００４８】次の上記のように構成された液晶表示装置
における光の挙動を説明する。光源である複数の発光ダ
イオード（ＬＥＤ）１２を点灯させると、これらの発光
ダイオード（ＬＥＤ）１２が発した光Ｒは、リフレクタ
ー６の内、外側反射板２６、２７及び２つの端部反射板
２８に当たり、反射を繰り返して、導光部材５の長手方
向一方の辺縁部５ａに設けた拡散シート２５に入射して
拡散され、導光部材５の長手方向一方の辺縁部５ａであ
る光の入射部イに入射される。Next, the behavior of light in the liquid crystal display device configured as described above will be described. When a plurality of light emitting diodes (LEDs) 12 serving as light sources are turned on, light R emitted from these light emitting diodes (LEDs) 12 emits outside reflectors 26 and 27 and two end reflectors 28 in the reflector 6. , The light is repeatedly reflected, incident on the diffusion sheet 25 provided on the one side edge 5a of the light guide member 5 in the longitudinal direction, diffused, and becomes The light is incident on the incident part a.
【００４９】この導光部材５に入射した光Ｒの一部ハ
は、図３に示すように、導光部材５の表面に形成した多
数の溝３１の反射面３１Ａに当たって反射され、この反
射光ハは反射型液晶パネル４に略直角に入射する。As shown in FIG. 3, a portion C of the light R incident on the light guide member 5 is reflected by the reflection surfaces 31A of the many grooves 31 formed on the surface of the light guide member 5, and is reflected. C enters the reflective liquid crystal panel 4 at a substantially right angle.
【００５０】このように、複数の発光ダイオード（ＬＥ
Ｄ）１２が発した光を外光の代りをさせることにより、
暗い所でも、反射型液晶パネル４を用いた表示デバイス
の表示の視認が可能になる。As described above, the plurality of light emitting diodes (LE
D) By substituting the light emitted by 12 for external light,
The display of the display device using the reflective liquid crystal panel 4 can be visually recognized even in a dark place.
【００５１】しかも、発光ダイオード（ＬＥＤ）１２は
点光源であるが、使用個数を増やし、導光部材５への入
射時に拡散シート２５で入射光を拡散させることで、一
様な光を作り、導光部材５の反射の光むらをなくすこと
が可能になる。しかも、発光ダイオード（ＬＥＤ）１２
を用いることで、安価で小形化、光源部品の長寿命化が
図れる照明構造を構成できる。また、低消費電力による
電池寿命の長時間化が図れる。Moreover, although the light emitting diode (LED) 12 is a point light source, the number of light emitting diodes used is increased, and the incident light is diffused by the diffusion sheet 25 at the time of entering the light guide member 5, thereby producing uniform light. It is possible to eliminate uneven light reflected from the light guide member 5. Moreover, a light emitting diode (LED) 12
By using a light source, it is possible to configure an illumination structure that is inexpensive, compact, and has a long lifespan for the light source component. In addition, battery life can be prolonged due to low power consumption.
【００５２】また、導光部材５の上部に装着したタッチ
パネル７により、導光部材５の表面の溝３１を傷付けた
り汚れから保護することができ、導光部材５の照明機能
を維持することができる。Further, the groove 31 on the surface of the light guide member 5 can be protected from damage and dirt by the touch panel 7 mounted on the upper part of the light guide member 5, and the illumination function of the light guide member 5 can be maintained. it can.
【００５３】また、導光部材５は、透明なアクリル樹脂
製の板であり、上部から外力を受けても導光部材５が撓
み変形して液晶面に負荷が加わらないように、ある程度
の剛性を有するように厚さは１〜２ｍｍで作成されてい
るために、従来のタッチパネルの下電極に使用されてい
るガラス板の剛性機能を兼ねさせ、タッチパネル７を表
面から押下しても液晶面には負荷が加わらず、また、タ
ッチパネル７の上、下電極を共にフィルムで構成するこ
とでタッチパネル７及び導光部材５の総合厚みを抑え、
液晶点灯時の表示視差（奥行き感）を小さく（軽減）す
ることができる。The light guide member 5 is a transparent acrylic resin plate, and has a certain rigidity so that the light guide member 5 is bent and deformed even when an external force is applied from above so that a load is not applied to the liquid crystal surface. Is formed to have a thickness of 1 to 2 mm so that it has the rigidity function of the glass plate used for the lower electrode of the conventional touch panel. Does not apply a load, and also suppresses the total thickness of the touch panel 7 and the light guide member 5 by forming both the upper and lower electrodes of the touch panel 7 with a film,
The display parallax (depth feeling) when the liquid crystal is turned on can be reduced (reduced).
【００５４】光源である複数の発光ダイオード（ＬＥ
Ｄ）１２の軸線ニに対して導光部材５は直角に配置され
ており、リフレクター７に角度を付けて導光部材５の端
面５ａと発光ダイオード（ＬＥＤ）１２からの光を導い
ている。このように、リフレクター６に角度を付けるこ
とで発光ダイオード（ＬＥＤ）１２を実装するメイン基
板２の位置が奥行き方向だけでなく高さ方向に配置する
ことで装置の小形化を図れる。A plurality of light emitting diodes (LEs) as light sources
D) The light guide member 5 is disposed at right angles to the axis d of 12, and guides light from the end face 5 a of the light guide member 5 and the light emitting diode (LED) 12 at an angle to the reflector 7. As described above, the angle of the reflector 6 allows the main board 2 on which the light emitting diodes (LEDs) 12 are mounted to be arranged not only in the depth direction but also in the height direction, so that the device can be downsized.
【００５５】また、液晶パネルホルダー３のリフレクタ
ー設置部１６の上面１６ａ及びこのリフレクター設置部
１６の光源用窓部１７の周壁面１７ａには光が反射する
ように白く印刷または塗装が施してあるために、リフレ
クター７から導光部材５に入射されず発光ダイオード
（ＬＥＤ）１２近くまで、逆に反射してきた光を再度、
導光部材５に入射させることができ、入射効率を向上さ
せることができる。The upper surface 16a of the reflector installation portion 16 of the liquid crystal panel holder 3 and the peripheral wall surface 17a of the light source window 17 of the reflector installation portion 16 are printed or painted white so as to reflect light. Then, the light that has been reflected from the reflector 7 to the vicinity of the light emitting diode (LED) 12 without being incident on the light guide member 5 is again reflected again.
The light can be incident on the light guide member 5, and the incident efficiency can be improved.
【００５６】このために、導光部材５に入射されるはず
の光がリフレクター６や導光部材５の形状、拡散シート
２５の貼り付け条件等で入射されず、光源近くまでに返
ってきた場合に、光源周囲を反射色に染めることで、再
度、リフレクター６を通過し導光部材５に入射されるた
め、入射光が増加し導光部材５の発光効率が向上する。For this reason, when the light that should be incident on the light guide member 5 is not incident due to the shape of the reflector 6 or the light guide member 5 or the condition for attaching the diffusion sheet 25, and returns to the vicinity of the light source. In addition, since the surroundings of the light source are dyed with a reflection color, the light passes through the reflector 6 again and enters the light guide member 5, so that the incident light increases and the light emission efficiency of the light guide member 5 improves.
【００５７】また、光源としての発光ダイオード（ＬＥ
Ｄ）１２を他の電子部品１１を実装したメイン基板２に
実装するようにしたために、光源基板やケーブル、コネ
クタを廃止することが可能になり、安価で且つ機器の小
形化を図りながら機能を意実現することができる。A light emitting diode (LE) as a light source
D) Since 12 is mounted on the main board 2 on which the other electronic components 11 are mounted, the light source board, the cable, and the connector can be eliminated, and the functions can be performed at a low cost while miniaturizing the device. Can be realized.
【００５８】（実施の形態例２）本発明に係る携帯用電
子機器の実施の形態例２を図４に示す。Second Embodiment FIG. 4 shows a second embodiment of a portable electronic device according to the present invention.
【００５９】本発明に係る携帯用電子機器の実施の形態
例２にあっては、発光ダイオード（ＬＥＤ）１２をメイ
ン基板２に直接実装せずに、このメイン基板２とは別体
のＬＥＤ基板３１に発光ダイオード（ＬＥＤ）１２を実
装するようにしたものであり、他の構成は上記した携帯
用電子機器の実施の形態例１と同様であるために説明を
省略する。In the second embodiment of the portable electronic device according to the present invention, the light emitting diode (LED) 12 is not directly mounted on the main substrate 2, but is separated from the main substrate 2 by an LED substrate. The light emitting diode (LED) 12 is mounted on 31. The other configuration is the same as that of the above-described first embodiment of the portable electronic device, and the description is omitted.
【００６０】この場合、前記液晶パネルホルダー３に
は、リフレクター設置部１６はなく、基板保持部３２が
形成してあって、この基板保持部３２にＬＥＤ基板３１
が、メイン基板２と平行に保持されており、このＬＥＤ
基板３１とメイン基板２とは、コネクタ３３及びケーブ
ル３４により接続される。そして、導光部材５に装着さ
れたリフレクター６−１は、実施の形態例１におけるリ
フレクター６と同構成であり、このリフレクター６−１
の先部分はＬＥＤ基板３１の上面に当接しており、リフ
レクター６−１内に発光ダイオード（ＬＥＤ）１２を収
納している。In this case, the liquid crystal panel holder 3 does not have the reflector mounting portion 16 but has a substrate holding portion 32 formed therein.
Is held in parallel with the main board 2 and this LED
The board 31 and the main board 2 are connected by a connector 33 and a cable 34. The reflector 6-1 attached to the light guide member 5 has the same configuration as the reflector 6 according to the first embodiment.
Is in contact with the upper surface of the LED substrate 31, and the light emitting diode (LED) 12 is housed in the reflector 6-1.
【００６１】（実施の形態例３）本発明に係る携帯用電
子機器の実施の形態例３を図５に示す。Third Embodiment FIG. 5 shows a third embodiment of a portable electronic device according to the present invention.
【００６２】本発明に係る携帯用電子機器の実施の形態
例３にあっては、発光ダイオード（ＬＥＤ）１２をメイ
ン基板２に直接実装せずに、このメイン基板２とは別体
のＬＥＤ基板３１−１に発光ダイオード（ＬＥＤ）１２
を実装するようにしたものであり、この場合、前記液晶
パネルホルダー３には、リフレクター設置部１６はな
く、基板保持部３２が形成してあって、この基板保持部
３２にＬＥＤ基板３１−１がメイン基板２に対して垂直
に保持されており、このＬＥＤ基板３１とメイン基板２
とは、コネクタ３３及びケーブル３４により接続され
る。In the third embodiment of the portable electronic device according to the present invention, the light emitting diode (LED) 12 is not directly mounted on the main substrate 2, but is provided separately from the main substrate 2. 31-1 is a light emitting diode (LED) 12
In this case, the liquid crystal panel holder 3 does not have the reflector installation portion 16 but has a substrate holding portion 32, and the substrate holding portion 32 has an LED substrate 31-1. Are held perpendicular to the main board 2, and the LED board 31 and the main board 2
Are connected by a connector 33 and a cable 34.
【００６３】また、導光部材５に装着されたリフレクタ
ー６−２は直線状であって、水平の配置してあり、この
リフレクター６−２の先部分はＬＥＤ基板３１の上面に
当接しており、リフレクター６−２内に発光ダイオード
（ＬＥＤ）１２を収納している。The reflector 6-2 mounted on the light guide member 5 is linear and horizontally arranged, and the front end of the reflector 6-2 is in contact with the upper surface of the LED board 31. A light emitting diode (LED) 12 is housed in the reflector 6-2.
【００６４】[0064]
【発明の効果】以上、説明したように、本発明の係る携
帯用電子機器によれば、反射型液晶パネルを用いて高コ
ントラストを生かし暗い場所では容易に照明を外光とし
て与えることが可能になって、表示の視認が良好になる
と共に、消費電力を極力抑え得るし、また、導光部材の
上部に装着した透明な状体板により、導光部材の表面を
傷付けたり汚れから保護することができ、照明機能を維
持することができる。As described above, according to the portable electronic device of the present invention, it is possible to easily provide illumination as external light in a dark place by utilizing a reflection type liquid crystal panel and utilizing high contrast. As a result, the visibility of the display is improved, and the power consumption can be suppressed as much as possible. In addition, the surface of the light guide member is protected from being scratched or stained by the transparent plate attached to the upper portion of the light guide member. And the lighting function can be maintained.
【００６５】また、導光部材に光を入射させるための光
源に発光ダイオードを用い、リフレクターにより導かれ
た光が入射する導光部材の端面に光を一様に拡散させる
拡散シートを配したことにより、発光ダイオードは点光
源であるが、使用個数を増やし、導光部材への入射時に
拡散シートで入射光を拡散させることで一様な光を作
り、導光部材の反射の光むらをなくすことが可能とな
る。発光ダイオードを上記構成で用いることにより、安
価で小形化、光源部品の長寿命化が図れる照明構造を構
成できる。また、低消費電力による電池寿命の長時間化
が図れる。In addition, a light-emitting diode is used as a light source for allowing light to enter the light guide member, and a diffusion sheet for uniformly diffusing light is provided on an end face of the light guide member on which light guided by the reflector enters. Although the light emitting diode is a point light source, the number of light emitting diodes used is increased, and when the light is incident on the light guide member, the incident light is diffused by the diffusion sheet to create uniform light, thereby eliminating the uneven light reflected from the light guide member. It becomes possible. By using the light-emitting diode in the above configuration, an illumination structure can be formed which is inexpensive, small-sized, and has a long light source component life. In addition, battery life can be prolonged due to low power consumption.
【００６６】また、導光部材を、ある程度の剛性を有す
る厚さの透明なアクリル樹脂板で構成して、この導光部
材の表面に、入射光を反射型液晶パネル側に導く反射面
を形成し、且つタッチパネルの上、下電極をフィルムで
構成するようにしたことにより、導光部材の厚みを、あ
る程度の剛性を有する厚さ、例えば１〜２ｍｍにするこ
とで、従来のタッチパネルの下電極に使用されているガ
ラス板の剛性機能を兼ねさせ、タッチパネルを表面から
押下しても液晶面には負荷が加わらず、また、タッチパ
ネルの上、下電極を共にフィルムで構成することでタッ
チパネル及び導光部材の総合厚みを抑え、液晶点灯時の
表示視差（奥行き感）を小さく（軽減）することができ
る。The light guide member is made of a transparent acrylic resin plate having a certain rigidity and a thickness, and a reflection surface for guiding incident light to the reflective liquid crystal panel is formed on the surface of the light guide member. The upper and lower electrodes of the touch panel are made of a film, and the thickness of the light guide member is set to a thickness having a certain rigidity, for example, 1 to 2 mm. When the touch panel is pressed down from the surface, no load is applied to the liquid crystal surface. The overall thickness of the optical member can be suppressed, and the display parallax (perception of depth) when the liquid crystal is turned on can be reduced (reduced).
【００６７】また、リフレクターに角度を付けて、導光
部材の端面と、発光ダイオードを実装した基板との位置
関係を直線上に配置しないようにしたことにより、リフ
レクターに角度付けることで光源となる基板の位置が奥
行き方向だけでなく高さ方向に配置することで装置の小
形化を図れる。Also, the reflector is angled so that the positional relationship between the end face of the light guide member and the substrate on which the light emitting diode is mounted is not arranged on a straight line, so that the reflector is angled to serve as a light source. By arranging the substrate not only in the depth direction but also in the height direction, the size of the apparatus can be reduced.
【００６８】また、発光ダイオードを、他の電子部品と
同一平面上に位置させてメイン基板に実装するようにし
たことにより、光源基板やケーブル、コネクタを廃止す
ることが可能になり、安価で且つ機器の小形化を図りな
がら機能を実現することができる。Further, the light emitting diode is positioned on the same plane as the other electronic parts and mounted on the main board, so that the light source board, the cable and the connector can be eliminated, thereby reducing the cost and cost. The function can be realized while miniaturizing the device.
【００６９】また、発光ダイオードの周囲に、光が反射
する反射手段を講じて、リフレクターから導光部材に入
射されずに発光ダイオード近くまで逆に反射してきた光
を、再度、導光部材に入射させるようにしたことによ
り、導光部材に入射されるはずの光がリフレクターや導
光部材の形状、拡散シートの貼り付け条件等で入射され
ず、光源近くまでに返ってきた場合に、光源周囲を反射
色に染めることで、再度リフレクターを通過し導光部材
に入射されるため、入射光が増加し導光部材の発光効率
が向上する。Further, a reflection means for reflecting light is provided around the light emitting diode, and light not reflected from the reflector to the light guide member but reflected back to the vicinity of the light emitting diode is incident on the light guide member again. When the light that is supposed to be incident on the light guide member is not incident due to the shape of the reflector or the light guide member, the conditions for attaching the diffusion sheet, and returns close to the light source, the light around the light source is Is dyed in a reflection color, and again passes through the reflector and enters the light guide member, so that the incident light increases and the light emission efficiency of the light guide member improves.
【図１】本発明に係る携帯用電子機器（実施の形態例
１）の分解状態の斜視図FIG. 1 is an exploded perspective view of a portable electronic device (first embodiment) according to the present invention.
【図２】同携帯用電子機器（実施の形態例１）の一部省
略した断面図FIG. 2 is a partially omitted cross-sectional view of the portable electronic device (Embodiment 1);
【図３】同携帯用電子機器（実施の形態例１）における
導光部材の光の入射及び反射の説明図FIG. 3 is an explanatory diagram of light incidence and reflection of a light guide member in the portable electronic device (Embodiment 1).
【図４】本発明に係る携帯用電子機器（実施の形態例
２）の一部省略した断面図FIG. 4 is a partially omitted cross-sectional view of a portable electronic device (Embodiment 2) according to the present invention.
【図５】本発明に係る携帯用電子機器（実施の形態例
３）の一部省略した断面図FIG. 5 is a partially omitted cross-sectional view of a portable electronic device (Embodiment 3) according to the present invention.
【図６】従来の携帯用電子機器の一部省略した断面図FIG. 6 is a partially omitted cross-sectional view of a conventional portable electronic device.
１ 下ケース（機器本体） ２ メイン基板 ３ 液晶パネルホルダー ４ 反射型液晶パネル ５ 導光部材 ６ リフレクター ７ タッチパネル ８ 上ケース（機器本体） １２ 発光ダイオード（光源） DESCRIPTION OF SYMBOLS 1 Lower case (device main body) 2 Main board 3 Liquid crystal panel holder 4 Reflective liquid crystal panel 5 Light guide member 6 Reflector 7 Touch panel 8 Upper case (device main body) 12 Light emitting diode (light source)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｇ０２Ｆ 1/1335 ５２０ Ｇ０２Ｆ 1/1335 ５２０ ５３０ ５３０ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI G02F 1/1335 520 G02F 1/1335 520 530 530
Claims (7)
用いた携帯用電子機器であって、機器本体内に、入射光
を反射型液晶パネル側に導く導光部材と、光源と、この
光源からの光を導光部材に導くリフレクターとを設け、
且つ導光部材の表側に透明な板状体を配置するようにし
たことを特徴とする携帯用電子機器。1. A portable electronic device using a reflective liquid crystal panel as a display device, wherein a light guide member for guiding incident light to the reflective liquid crystal panel side, a light source, and a light source from the light source. A reflector that guides light to the light guide member is provided,
A portable electronic device wherein a transparent plate is disposed on the front side of the light guide member.
記載の携帯用電子機器。2. The portable electronic device according to claim 1, wherein the plate is a touch panel.
発光ダイオードを用い、リフレクターにより導かれた光
が入射する導光部材の入射部に光を一様に拡散させる拡
散シートを配した請求項１又は請求項２に記載の携帯用
電子機器。3. A light-emitting diode is used as a light source for causing light to enter the light guide member, and a diffusion sheet for uniformly diffusing the light is disposed at an incident portion of the light guide member where the light guided by the reflector enters. The portable electronic device according to claim 1.
さの透明なアクリル樹脂板で構成して、この導光部材の
表面に、入射光を反射型液晶パネル側に導く反射面を形
成し、且つタッチパネルの上、下電極をフィルムで構成
するようにした請求項２に記載の携帯用電子機器。4. The light guide member is made of a transparent acrylic resin plate having a certain rigidity and a thickness, and a reflection surface for guiding incident light to the reflective liquid crystal panel is formed on the surface of the light guide member. 3. The portable electronic device according to claim 2, wherein the upper and lower electrodes of the touch panel are formed of films.
の入射部と発光ダイオードを実装した基板との位置関係
が直線上の配置にならないようにした請求項３又は請求
項４に記載の携帯用電子機器。5. The portable device according to claim 3, wherein the reflector is angled so that the positional relationship between the incident portion of the light guide member and the substrate on which the light emitting diode is mounted is not linear. For electronic equipment.
平面上に位置させてメイン基板に実装するようにした請
求項５に記載の携帯用電子機器。6. The portable electronic device according to claim 5, wherein the light emitting diode is mounted on the main board while being positioned on the same plane as other electronic components.
反射手段を講じて、リフレクターから導光部材に入射さ
れずに発光ダイオード近くまで逆に反射してきた光を、
再度、導光部材に入射させるようにした請求項３乃至請
求項６に記載の携帯用電子機器。7. A light reflecting means is provided around the light emitting diode to reflect light that has not been incident on the light guide member from the reflector but has been reflected back to the vicinity of the light emitting diode.
The portable electronic device according to claim 3, wherein the light is incident on the light guide member again.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13596998A JP3644476B2 (en) | 1998-04-30 | 1998-04-30 | Portable electronic devices |
| GB9910125A GB2336933B (en) | 1998-04-30 | 1999-04-30 | Portable electronic apparatus having liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13596998A JP3644476B2 (en) | 1998-04-30 | 1998-04-30 | Portable electronic devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11316553A true JPH11316553A (en) | 1999-11-16 |
| JP3644476B2 JP3644476B2 (en) | 2005-04-27 |
Family
ID=15164104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13596998A Expired - Fee Related JP3644476B2 (en) | 1998-04-30 | 1998-04-30 | Portable electronic devices |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3644476B2 (en) |
| GB (1) | GB2336933B (en) |
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| JP2003523867A (en) * | 2000-02-02 | 2003-08-12 | ヴァレオ エレクトロニク | Display device for stationary fixed circuits of vehicles, especially motor vehicles |
| US6738051B2 (en) | 2001-04-06 | 2004-05-18 | 3M Innovative Properties Company | Frontlit illuminated touch panel |
| JP2008516266A (en) * | 2004-09-27 | 2008-05-15 | アイディーシー、エルエルシー | Dual display with lighting assembly that backlights one panel and frontlights the other panel |
| WO2008146798A1 (en) * | 2007-05-28 | 2008-12-04 | Alps Electric Co., Ltd. | Electronic device |
| JP2009026660A (en) * | 2007-07-20 | 2009-02-05 | Sharp Corp | Illumination device |
| WO2011106345A3 (en) * | 2010-02-23 | 2011-11-24 | Black Diamond Equipment, Ltd. | Systems and methods for locking a portable illumination system |
| US8454181B2 (en) | 2010-08-25 | 2013-06-04 | Ford Global Technologies, Llc | Light bar proximity switch |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB2336933A (en) | 1999-11-03 |
| GB9910125D0 (en) | 1999-06-30 |
| JP3644476B2 (en) | 2005-04-27 |
| GB2336933B (en) | 2000-12-06 |
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