JP3796414B2 - 3D image display device and polarized glasses for 3D image display device - Google Patents
3D image display device and polarized glasses for 3D image display device Download PDFInfo
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Description
【０００１】
【発明の属する技術分野】
本発明は、３Ｄ映像を現出させる為の３Ｄ映像表示装置及び３Ｄ映像表示装置用の偏光メガネに関するものである。
【０００２】
【従来の技術及び発明が解決しようとする課題】
従来の３Ｄ映像表示装置は、図１に図示したように、映像表示部31の前方に透過軸方向が図示した矢印の直線偏光板32を設け、この直線偏光板32の前方に右目用映像を表示する右目用映像表示部ａ（光学的主軸方向が図示した矢印の１／２波長板）と左目用映像（右目用映像を構成する光の振動方向に対し９０゜直交する方向に振動する光により構成された映像）を表示する左目用映像表示部ｂ（例えば右目用映像表示部ａと同屈析率の適宜な透光樹脂）とが交互に並設された３Ｄ映像表示部33を設けた３Ｄ映像表示体と、観察者がかけるものであって、この右目用映像を透過し左目用映像を遮断する偏光板付右目用レンズ（透過軸方向は図示した矢印）と左目用映像を透過し右目用映像を遮断する偏光板付左目用レンズ34ｂ（透過軸方向は図示した矢印）で構成された偏光メガネとから成り、この偏光メガネを観察者がかけ、前記３Ｄ映像表示体33からの映像をみると、該映像は立体映像として認識されるものである。
【０００３】
ところで、上記３Ｄ映像表示装置においては、上述のように、右目用レンズ34ａにおいては、右目用映像のみが透過し左目用映像は遮断され、また、左目用レンズ34ｂにおいては、左目用映像のみが透過し右目用映像が遮断されることが理想であるが、実際は、右目用映像表示部ａから出射される右目用映像は、直線偏光板32の透過軸方向と直交する方向に振動を有する偏光になってはいるが、ほとんどが楕円偏光となっている為、左目用レンズ34ｂにおいて完全に遮断されず（このことを表現する為、図において左目用レンズ34ｂの「メガネを通してみた映像の「右」の部分を薄い黒で表示している。）、わずかに透過してクロストークが生じ（右目用レンズ34ａにおいては上記した理想状態）、これが原因で鮮明な立体映像が認識できず、観察者が認識する立体感が弱くなるという問題点がある。
【０００４】
本発明は、このような問題点を解決したもので、鮮明な立体映像を認識し得る３Ｄ映像表示装置及び３Ｄ映像表示装置用の偏光メガネを提供するものである。
【０００５】
【課題を解決するための手段】
添付図面を参照して本発明の要旨を説明する。
【０００６】
映像表示部１の前方に偏光板２が設けられ、この偏光板２の前方には光学的主軸方向が前記偏光板２の透過軸方向に対して所定角度であり位相差機能を有する右目用映像表示部ａと位相差機能を有しない左目用映像表示部ｂとが混在した３Ｄ映像表示部３が設けられた３Ｄ映像表示体Ｓと、右目用映像表示部ａからの右目用映像を透過し左目用映像表示部ｂからの左目用映像を遮断する偏光板付右目用レンズ４ａ及び左目用映像表示部ｂからの左目用映像を透過し右目用映像表示部ａからの右目用映像を遮断する偏光板付左目用レンズ４ｂで構成された偏光メガネＴとから成る３Ｄ映像表示装置であって、偏光板付左目用レンズ４ｂの前方には前記右目用映像表示部ａの光学的主軸と直交する方向の光学的主軸を有し位相差機能を有する位相差機能部材５が貼り合わされていることを特徴とする３Ｄ映像表示装置に係るものである。
【０００７】
また、映像表示部１の前方に偏光板２が設けられ、この偏光板２の前方には位相差機能を有しない右目用映像表示部ａと光学的主軸方向が前記偏光板２の透過軸方向に対して所定角度であり位相差機能を有する左目用映像表示部ｂとが混在した３Ｄ映像表示部３が設けられた３Ｄ映像表示体Ｓと、右目用映像表示部ａからの右目用映像を透過し左目用映像表示部ｂからの左目用映像を遮断する偏光板付右目用レンズ４ａ及び左目用映像表示部ｂからの左目用映像を透過し右目用映像表示部ａからの右目用映像を遮断する偏光板付左目用レンズ４ｂで構成された偏光メガネＴとから成る３Ｄ映像表示装置であって、偏光板付右目用レンズ４ａの前方には前記左目用映像表示部ｂの光学的主軸と直交する方向の光学的主軸を有し位相差機能を有する位相差機能部材５が貼り合わされていることを特徴とする３Ｄ映像表示装置に係るものである。
【０００８】
また、請求項１に記載の３Ｄ映像表示装置において、位相差機能を有する右目用映像表示部ａ及び位相差機能部材５として、夫々１／２波長板を採用したことを特徴とする３Ｄ映像表示体に係るものである。
【０００９】
また、請求項２記載の３Ｄ映像表示装置において、位相差機能を有する左目用映像表示部ｂ及び位相差機能部材５として、夫々１／２波長板を採用したことを特徴とする３Ｄ映像表示装置に係るものである。
【００１０】
また、請求項１〜４いずれか１項に記載の３Ｄ映像表示装置において、偏光板２として直線偏光板を採用したことを特徴とする３Ｄ映像表示装置に係るものである。
【００１１】
また、請求項１〜５いずれか１項に記載の３Ｄ映像表示装置において、３Ｄ映像表示部３として所定巾の右目用映像表示部ａと所定巾の左目用映像表示部ｂとが交互に並設された３Ｄ映像表示部３を採用したことを特徴とする３Ｄ映像表示装置に係るものである。
【００１２】
また、映像表示部１の前方に偏光板２が設けられ、この偏光板２の前方には光学的主軸方向が前記偏光板２の透過軸方向に対して所定角度であり位相差機能を有する右目用映像表示部ａと位相差機能を有しない左目用映像表示部ｂとが混在した３Ｄ映像表示部３が設けられた３Ｄ映像表示体Ｓに組み合わせられる３Ｄ映像表示装置用の偏光メガネＴであって、右目用映像表示部ａからの右目用映像を透過し左目用映像表示部ｂからの左目用映像を遮断する偏光板付右目用レンズ４ａ及び左目用映像表示部ｂからの左目用映像を透過し右目用映像表示部ａからの右目用映像を遮断する偏光板付左目用レンズ４ｂで構成され、左目用映像表示部ｂの前方には前記右目用映像表示部ａの光学的主軸と直交する方向の光学的主軸を有し位相差機能を有する位相差機能部材５が貼り合わせられていることを特徴とする３Ｄ映像表示装置用の偏光メガネに係るものである。
【００１３】
また、映像表示部１の前方に偏光板２が設けられ、この偏光板２の前方には位相差機能を有しない右目用映像表示部ａと光学的主軸方向が前記偏光板２の透過軸方向に対して所定角度であり位相差機能を有する左目用映像表示部ｂとが混在した３Ｄ映像表示部３が設けられた３Ｄ映像表示体Ｓに組み合わせられる３Ｄ映像表示装置用の偏光メガネＴであって、右目用映像表示部ａからの右目用映像を透過し左目用映像表示部ｂからの左目用映像を遮断する偏光板付右目用レンズ４ａ及び左目用映像表示部ｂからの左目用映像を透過し右目用映像表示部ａからの右目用映像を遮断する偏光板付左目用レンズ４ｂで構成され、右目用映像表示部ａの前方には前記左目用映像表示部ｂの光学的主軸と直交する方向の光学的主軸を有し位相差機能を有する位相差機能部材５が貼り合わされていることを特徴とする３Ｄ映像表示装置用の偏光メガネに係るものである。
【００１４】
【発明の作用及び効果】
図２に基づいて説明すると、右目用映像表示部ａからの右目用映像は偏光板２の透過軸方向と直交する方向に振動する楕円偏光となっており、また、左目用映像表示部ｂからの左目用映像は偏光板２の透過軸方向と同方向に振動する直線偏光となっている（図２中の＃参照）。
【００１５】
この右目用映像及び左目用映像は、右目用レンズ４ａにおいては右目用映像は透過し、左目用映像は完全に遮断される。しかし、左目用レンズ４ｂにおいては右目用映像は、位相差機能部材５を通過することにより偏光板２の透過軸方向と同じ方向に振動する直線偏光となるから完全に遮断され（図２中の♭参照）、左目用映像は位相差機能部材５を通過することにより偏光板２の透過軸方向と直交する方向に振動する楕円偏光となるから透過する（図２中の♭参照）。従って、左目用レンズ４ｂにおいては、従来の３Ｄ映像装置のようにクロストークが生じない。
【００１６】
本発明は上述のように構成したから、鮮明にして立体感の強い映像が得られる３Ｄ映像表示装置となる。
【００１７】
【発明の実施の態様】
図２は本発明の一実施例を図示したものであり、以下に詳述する。
【００１８】
本実施例は、映像表示部１の前方に偏光板２が設けられ、この偏光板２の前方には光学的主軸方向が前記偏光板２の透過軸方向に対して所定角度であり位相差機能を有する右目用映像表示部ａと位相差機能を有しない左目用映像表示部ｂとが混在した３Ｄ映像表示部３が設けられた３Ｄ映像表示体Ｓと、右目用映像表示部ａからの右目用映像を透過し左目用映像表示部ｂからの左目用映像を遮断する偏光板付右目用レンズ４ａ及び左目用映像表示部ｂからの左目用映像を透過し右目用映像表示部ａからの右目用映像を遮断する偏光板付左目用レンズ４ｂで構成された偏光メガネＴとから成る３Ｄ映像表示装置であって、偏光板付左目用レンズ４ｂの前方には前記右目用映像表示部ａの光学的主軸と直交する方向の光学的主軸を有し位相差機能を有する位相差機能部材５が貼り合わせられているものである。
【００１９】
１は映像表示部（ディスプレイ）であり、また、偏光板２は透過軸方向が図２に図示した矢印方向の直線偏光板であり、更に、３Ｄ映像表示部３は帯状の右目用映像表示部ａ、左目用映像表示部ｂが交互に並設されたものである。
【００２０】
この３Ｄ映像表示部３は、具体的には、位相差機能（特定の波長域の光の振動方向を回転し得る機能）を有し光学的主軸方向（延伸方向）が図２に図示した矢印方向の公知の１／２波長板（特定の波長域の光の振動方向を９０゜回転させる性質を有するものであり、この場合、前記偏光板２の透過軸に対して±４５゜（図２の場合は−４５゜の傾斜）に傾斜する光学的主軸を有する１／２波長板）を、例えば右目用映像表示部ａに設け、それ以外の部分にはこの１／２波長板を設けず、左目用映像表示部ｂとしたものである。従って、この右目用映像表示部ａから出射する右目用映像は、偏光板２の透過軸方向と直交する方向に振動する楕円偏光となり、また、この左目用映像表示部ｂから出射する左目用映像は、偏光板２の透過軸方向と同方向に振動する直線偏光となる（図２中の＃参照）。
【００２１】
また、図２の偏光メガネＴは、偏光板付左目用レンズ４ｂと偏光板付右目用レンズ４ａとから成り（両レンズの透過軸方向は図示したとおり、ともに偏光板２の透過軸方向と直交する方向）、更に、左目用レンズ４ｂにして３Ｄ映像表示体側には位相差機能部材５としての前記同様の１／２波長板（ただし、光学的主軸方向は図２に図示した矢印方向、即ち、右目用映像表示部ａに用いた１／２波長板と直交する方向）が貼り合わされている。
【００２２】
尚、右目用映像表示部ａに光学的主軸方向が図２において上下方向の１／２波長板を使用する場合（偏光板２の透過軸に対して＋４５゜傾斜の１／２波長板を使用する場合）、位相差機能部材５は光学的主軸方向が図２において、左右方向のものを採用する（この場合、偏光メガネＴの両レンズの透過軸方向は図２に図示した方向と同じ）。即ち、３Ｄ映像表示部３の１／２波長板と位相差機能部材５との光学的主軸方向は互いに直交するように設定する。
【００２３】
本実施例に係る３Ｄ映像表示装置においては、右目用レンズ４ａにおいては、右目用映像表示部ａから出射する右目用映像はそのまま右目用レンズ４ａを透過し、左目用映像表示部ｂから出射する左目用映像はそのまま右目用レンズ４ａにおいて完全遮断され理想状態となる。
【００２４】
また、左目用レンズ４ｂにおいては、右目用映像表示部ａから出射する右目用映像は１／２波長板を透過して左目用レンズ４ｂに入射する。この１／２波長板を透過すると右目用映像は楕円偏光から直線偏光板２の振動方向と同じ方向に振動する直線偏光となる為（図２中の♭参照）、左目用レンズ４ｂにおいて完全に遮断され（図２においては、図１と異なり、この「完全な遮断」を表現する為、「メガネを通して見た映像」の「右」の部分をまっ黒に表示している。）、また左目用映像表示部ｂから出射する左目用映像も１／２波長板を透過して左目用レンズ４ｂに入射する。この１／２波長板を透過すると左目用映像は直線偏光板２の振動方向と直交する方向に振動する楕円偏光となる為（図２中の♭参照）、左目用レンズ４ｂを透過する。
【００２５】
従って、本実施例においては、クロストークが防止され、鮮明な立体映像が認識でき、立体感が弱まることはない。
【００２６】
尚、ディスプレイからはコンピュータ等の制御装置により右目用映像及び左目用映像が発信されるように構成されている。
【００２７】
図２は右目用映像表示部ａに１／２波長板を採用した場合であるが、左目用映像表示部ｂに１／２波長板を採用してもよく、この場合には左目用レンズ４ｂではなく、右目用レンズ４ａに１／２波長板を貼り合わせる。尚、この場合も左目用レンズ４ｂ及び右目用レンズ４ａの透過軸方向はともに、図２の場合と同じ方向である。
【００２８】
３Ｄ映像表示部３の具体例について説明する。
【００２９】
本実施例の３Ｄ映像表示部３は、複屈析性を有しない透明な支持材（例えば厚さ１ｍｍ程度のガラス板やセルロースアセテートブチレート（ＣＡＢ）板等）上に接着剤（例えば紫外線硬化性樹脂）を介して可視光領域において位相差機能を有する部材（１／２波長板。例えば、ポリカーボネートフィルム若しくはポリビニルアルコールフィルムなど）を貼り合わせ、この位相差機能を有する部材の所定部分を超硬刃（ノコ刃）等により切削除去して該部材に一側から他側に延設される複数の平行な凹溝を並設形成し、この凹溝を適宜な合成樹脂、例えば無色透明にして前記位相差機能を有する部材と屈折率が略同一の紫外線硬化型樹脂により埋めたものである。
【００３０】
また、凹溝の巾及び凹溝同志のピッチは、組み合わせられるディスプレイの右目用映像を発信する部分及び左目用映像を発信する部分のピッチ（画素ピッチ）に対応している。
【００３１】
従って、この３Ｄ映像表示部３は、前記紫外線硬化型樹脂を埋めた部分が、通過する映像の偏光の振動方向を回転させない部位、また、残余の部分が、通過する映像の偏光の振動方向を９０°回転させる部位となる。
【００３２】
本実施例は上述のように構成したから、１／２波長板により、左目用レンズ４ｂにおいて右目用映像が完全に遮断され、従って、観察者が二重像の生じない高品位の立体画像を認識し得ることになる実用性に秀れた３Ｄ映像表示装置となる。
【００３３】
実際に、複数の観察者に本実施例に係る３Ｄ映像表示装置と、図１の従来例とを見せた場合、全員が本実施例に係る３Ｄ映像表示装置の方が立体感が強い旨の評価をした。
【図面の簡単な説明】
【図１】従来からある３Ｄ映像表示装置の説明図である。
【図２】本実施例の３Ｄ映像表示装置の説明図である。
【符号の説明】
１ 映像表示部
２ 偏光板
３ ３Ｄ映像表示部
４ａ 右目用レンズ
４ｂ 左目用レンズ
５ 位相差機能部材
ａ 右目用映像表示部
ｂ 左目用映像表示部
Ｓ ３Ｄ映像表示体
Ｔ 偏光メガネ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a 3D image display device for displaying a 3D image, and polarized glasses for the 3D image display device.
[0002]
[Prior art and problems to be solved by the invention]
As shown in FIG. 1, the conventional 3D image display device includes a linearly polarizing plate 32 with an arrow whose transmission axis is shown in front of the image display unit 31, and a right-eye image is displayed in front of the linearly polarizing plate 32. Right-eye image display section a (a half-wave plate whose optical principal axis direction is shown in the figure) to be displayed and left-eye image (light that vibrates in a direction perpendicular to the vibration direction of light constituting the right-eye image) 3D
[0003]
Incidentally, in the above-described 3D video display device, as described above, in the right-eye lens 34a, only image movies for the right eye is blocked left-eye video transmitted and also, in the left-eye lens 34b, only the left eye video image It is ideal that the right-eye image is transmitted and the right-eye image is blocked, but in reality, the right-eye image emitted from the right-eye image display unit a has vibration in a direction orthogonal to the transmission axis direction of the linear polarizing plate 32. Although it is polarized, most of it is elliptically polarized, so it is not completely blocked by the left-eye lens 34b (in order to express this, in the figure, “the image of the image seen through the glasses” of the left-eye lens 34b). The “right” part is displayed in light black.) Crosstalk occurs slightly and crosstalk occurs (the ideal state described above in the right-eye lens 34a), which makes it impossible to recognize a clear stereoscopic image and Person there is a problem that the three-dimensional effect is weakened recognize.
[0004]
The present invention solves such problems, and provides a 3D video display device capable of recognizing a clear stereoscopic image and polarized glasses for the 3D video display device.
[0005]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0006]
A polarizing plate 2 is provided in front of the image display unit 1, and an optical main axis direction is a predetermined angle with respect to the transmission axis direction of the polarizing plate 2 in front of the polarizing plate 2 and has a phase difference function. The 3D video display body S provided with the 3D video display unit 3 in which the display unit a and the left-eye video display unit b having no phase difference function are mixed, and the right-eye video from the right-eye video display unit a are transmitted. Polarized right-eye lens 4a with a polarizing plate for blocking the left-eye image from the left-eye image display unit b, and polarized light that transmits the left-eye image from the left-eye image display unit b and blocks the right-eye image from the right-eye image display unit a A 3D video display device comprising polarizing glasses T composed of a left-eye lens 4b with a plate, in front of the left-eye lens 4b with a polarizing plate, is optical in a direction perpendicular to the optical principal axis of the right-eye video display unit a. Phase with a phase difference function It relates to a 3D image display device according to claim in which the functional member 5 is bonded.
[0007]
Further, a polarizing plate 2 is provided in front of the image display unit 1, and the right-eye image display unit a having no phase difference function and the optical principal axis direction are in the transmission axis direction of the polarizing plate 2 in front of the polarizing plate 2. A 3D video display body S provided with a 3D video display unit 3 mixed with a left-eye video display unit b having a phase difference function at a predetermined angle, and a right-eye video from the right-eye video display unit a. The right-eye lens with polarizing plate 4a that transmits and blocks the left-eye image from the left-eye image display unit b and the left-eye image from the left-eye image display unit b and blocks the right-eye image from the right-eye image display unit a 3D video display device comprising polarizing glasses T composed of a polarizing plate left-eye lens 4b, and a direction orthogonal to the optical principal axis of the left-eye video display unit b in front of the polarizing plate right-eye lens 4a With optical main axis and phase difference function It relates to a 3D image display device according to claim in which the phase difference functional member 5 is bonded.
[0008]
3. The 3D image display device according to claim 1, wherein a half-wave plate is employed as each of the right-eye image display unit a having a phase difference function and the phase difference function member 5. It relates to the body.
[0009]
3. The 3D image display device according to claim 2, wherein a half-wave plate is employed as each of the left-eye image display unit b having a phase difference function and the phase difference function member 5. It is related to.
[0010]
The 3D video display device according to any one of claims 1 to 4, wherein a linearly polarizing plate is adopted as the polarizing plate 2.
[0011]
Further, in the 3D video display device according to any one of claims 1 to 5, as the 3D video display unit 3, a right-eye video display unit a having a predetermined width and a left-eye video display unit b having a predetermined width are alternately arranged. The present invention relates to a 3D video display device characterized in that the provided 3D video display unit 3 is employed.
[0012]
In addition, a polarizing plate 2 is provided in front of the image display unit 1, and a right eye having a phase difference function in which the optical principal axis direction is a predetermined angle with respect to the transmission axis direction of the polarizing plate 2 in front of the polarizing plate 2. Polarizing glasses T for a 3D video display device combined with a 3D video display body S provided with a 3D video display unit 3 in which a video display unit a and a left-eye video display unit b having no phase difference function are mixed. Then, the right-eye lens 4a with a polarizing plate that transmits the right-eye image from the right-eye image display unit a and blocks the left-eye image from the left-eye image display unit b and the left-eye image from the left-eye image display unit b are transmitted. And a left-eye lens 4b with a polarizing plate that blocks the right-eye image from the right-eye image display unit a, and in front of the left-eye image display unit b is a direction orthogonal to the optical principal axis of the right-eye image display unit a. It has an optical main axis and has a phase difference function. That it is intended according to the polarized glasses for 3D image display device according to claim in which the phase difference functional member 5 are bonded.
[0013]
Further, a polarizing plate 2 is provided in front of the image display unit 1, and the right-eye image display unit a having no phase difference function and the optical principal axis direction are in the transmission axis direction of the polarizing plate 2 in front of the polarizing plate 2. The polarizing glasses T for the 3D video display device can be combined with the 3D video display body S provided with the 3D video display unit 3 having a predetermined angle and a left eye video display unit b having a phase difference function. Then, the right-eye lens 4a with a polarizing plate that transmits the right-eye image from the right-eye image display unit a and blocks the left-eye image from the left-eye image display unit b and the left-eye image from the left-eye image display unit b are transmitted. And a left-eye lens 4b with a polarizing plate that blocks the right-eye image from the right-eye image display section a, and in front of the right-eye image display section a is a direction orthogonal to the optical principal axis of the left-eye image display section b. It has an optical main axis and has a phase difference function. That it is intended according to the polarized glasses for 3D image display device according to claim in which the phase difference functional member 5 is bonded.
[0014]
[Action and effect of the invention]
Referring to FIG. 2, the right-eye image from the right-eye image display unit a is elliptically polarized light that vibrates in a direction orthogonal to the transmission axis direction of the polarizing plate 2, and from the left-eye image display unit b. The left-eye image is linearly polarized light that vibrates in the same direction as the transmission axis direction of the polarizing plate 2 (see # in FIG. 2).
[0015]
The right eyes for movies image and the left-eye images, right-eye video is transmitted in the right-eye lens 4a, the left-eye image is completely blocked. However, in the left-eye lens 4b, the right-eye image is completely blocked because it passes through the phase difference functional member 5 and becomes linearly polarized light that vibrates in the same direction as the transmission axis direction of the polarizing plate 2 (in FIG. 2). The image for the left eye passes through the phase difference function member 5 and becomes elliptically polarized light that vibrates in a direction orthogonal to the transmission axis direction of the polarizing plate 2 (see FIG. 2). Therefore, in the left-eye lens 4b, crosstalk does not occur unlike the conventional 3D video apparatus.
[0016]
Since the present invention is configured as described above, it becomes a 3D video display device that can provide a clear and strong stereoscopic image.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 2 illustrates one embodiment of the present invention, which will be described in detail below.
[0018]
In this embodiment, a polarizing plate 2 is provided in front of the image display unit 1, and the optical principal axis direction is a predetermined angle with respect to the transmission axis direction of the polarizing plate 2 in front of the polarizing plate 2. A 3D video display S provided with a 3D video display unit 3 in which a right-eye video display unit a having a phase difference function and a left-eye video display unit b not having a phase difference function are mixed, and a right eye from the right-eye video display unit a The right-eye lens 4a with a polarizing plate that transmits the image for transmission and blocks the image for the left eye from the left-eye image display unit b and the image for the right eye from the image display unit a for the right eye that transmits the image for the left eye from the image display unit for the left eye b. A 3D image display device comprising polarizing glasses T composed of a polarizing plate left-eye lens 4b for blocking an image, and an optical principal axis of the right-eye image display section a in front of the polarizing plate-left eye lens 4b Phase difference function with optical principal axes in orthogonal directions Retardation functional member 5 having those that are bonded.
[0019]
Reference numeral 1 denotes an image display unit (display), the polarizing plate 2 is a linear polarizing plate whose transmission axis is in the direction of the arrow shown in FIG. 2, and the 3D image display unit 3 is a belt-like right-eye image display unit. a and the left-eye video display portions b are alternately arranged in parallel.
[0020]
Specifically, the 3D image display unit 3 has a phase difference function (function capable of rotating the vibration direction of light in a specific wavelength range) and the optical principal axis direction (stretching direction) is an arrow illustrated in FIG. Direction known half-wave plate (having the property of rotating the vibration direction of light in a specific wavelength region by 90 °, in this case ± 45 ° with respect to the transmission axis of the polarizing plate 2 (FIG. 2 In this case, a half-wave plate having an optical principal axis inclined at -45 ° is provided in the right-eye image display section a, for example, and this half-wave plate is not provided in other portions. The left-eye video display unit b is used. Therefore, the right-eye image emitted from the right-eye image display unit a becomes elliptically polarized light that vibrates in the direction orthogonal to the transmission axis direction of the polarizing plate 2 and the left-eye image emitted from the left-eye image display unit b. Becomes linearly polarized light that vibrates in the same direction as the transmission axis direction of the polarizing plate 2 (see # in FIG. 2).
[0021]
2 comprises a left eye lens 4b with a polarizing plate and a right eye lens 4a with a polarizing plate (the transmission axis directions of both lenses are orthogonal to the transmission axis direction of the polarizing plate 2 as shown in the figure). Further, the same half-wave plate as the phase difference function member 5 is provided on the 3D image display side of the left-eye lens 4b (however, the optical principal axis direction is the arrow direction shown in FIG. The direction orthogonal to the half-wave plate used in the video display unit a) is bonded.
[0022]
In the case of using a half-wave plate whose optical principal axis direction is the vertical direction in FIG. 2 for the right-eye image display unit a (a half-wave plate inclined + 45 ° with respect to the transmission axis of the polarizing plate 2 is used). 2), the phase difference function member 5 adopts the optical principal axis direction in the left-right direction in FIG. 2 (in this case, the transmission axis directions of both lenses of the polarizing glasses T are the same as those shown in FIG. 2). . That is, the optical principal axis directions of the half-wave plate of the 3D image display unit 3 and the phase difference functional member 5 are set to be orthogonal to each other.
[0023]
In the 3D image display apparatus according to the present embodiment, in the right-eye lens 4a, the right-eye image emitted from the right-eye image display unit a passes through the right-eye lens 4a and is emitted from the left-eye image display unit b. The left-eye image is completely blocked by the right-eye lens 4a as it is, and becomes an ideal state.
[0024]
In the left-eye lens 4b, the right-eye image emitted from the right-eye image display unit a passes through the half-wave plate and enters the left-eye lens 4b. When the half-wave plate is transmitted, the right-eye image becomes linearly polarized light that vibrates in the same direction as the vibration direction of the linearly polarizing plate 2 from the elliptically polarized light (see FIG. 2). (In FIG. 2, unlike FIG. 1, the “right” portion of the “image viewed through the glasses” is displayed in black to express this “complete block”), and for the left eye The left-eye image emitted from the image display unit b also passes through the half-wave plate and enters the left-eye lens 4b. When the half-wave plate is transmitted, the left-eye image becomes elliptically polarized light that vibrates in a direction orthogonal to the vibration direction of the linearly polarizing plate 2 (see FIG. 2), and thus the left-eye image is transmitted through the left-eye lens 4b.
[0025]
Therefore, in this embodiment, crosstalk is prevented, a clear stereoscopic image can be recognized, and the stereoscopic effect is not weakened.
[0026]
The display is configured such that a right eye image and a left eye image are transmitted by a control device such as a computer.
[0027]
Although FIG. 2 shows a case where a half-wave plate is employed for the right-eye image display unit a, a half-wave plate may be employed for the left-eye image display unit b. In this case, the left-eye lens 4b is used. Instead, a half-wave plate is bonded to the right-eye lens 4a. In this case as well, the transmission axis directions of the left-eye lens 4b and the right-eye lens 4a are both the same as in FIG.
[0028]
A specific example of the 3D video display unit 3 will be described.
[0029]
The 3D image display unit 3 according to the present embodiment has an adhesive (for example, UV-curing) on a transparent support material (for example, a glass plate having a thickness of about 1 mm or a cellulose acetate butyrate (CAB) plate) having no birefringence. A member having a retardation function (a half-wave plate, such as a polycarbonate film or a polyvinyl alcohol film) in the visible light region is bonded through a resin, and a predetermined portion of the member having the retardation function is made of carbide. A plurality of parallel concave grooves extending from one side to the other side are formed side by side by cutting and removing with a blade (saw blade) or the like, and the concave grooves are made of an appropriate synthetic resin, for example, colorless and transparent. It is filled with an ultraviolet curable resin having substantially the same refractive index as that of the member having the retardation function.
[0030]
Further, the width of the concave groove and the pitch between the concave grooves correspond to the pitch (pixel pitch) of the portion for transmitting the right-eye image and the portion for transmitting the left-eye image of the combined display.
[0031]
Accordingly, in this 3D image display unit 3, the portion where the ultraviolet curable resin is embedded does not rotate the polarization direction of the polarized light of the image that passes through, and the remaining portion indicates the vibration direction of the polarized light of the image that passes through. It becomes a part rotated 90 degrees.
[0032]
Since the present embodiment is configured as described above, the right-eye image is completely blocked by the left-eye lens 4b by the half-wave plate, so that the observer can display a high-quality stereoscopic image that does not generate a double image. It becomes a 3D video display device excellent in practicality that can be recognized.
[0033]
Actually, when the 3D video display device according to the present embodiment and the conventional example of FIG. 1 are shown to a plurality of observers, it can be said that the 3D image display device according to the present embodiment has a stronger stereoscopic effect. Evaluated.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a conventional 3D video display device.
FIG. 2 is an explanatory diagram of a 3D video display apparatus according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Video display part 2 Polarizing plate 3 3D video display part 4a Right-eye lens 4b Left-eye lens 5 Phase difference functional member a Right-eye video display part b Left-eye video display part S 3D video display body T Polarized glasses
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001117398A JP3796414B2 (en) | 2001-04-16 | 2001-04-16 | 3D image display device and polarized glasses for 3D image display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001117398A JP3796414B2 (en) | 2001-04-16 | 2001-04-16 | 3D image display device and polarized glasses for 3D image display device |
Publications (2)
| Publication Number | Publication Date |
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| JP2002311385A JP2002311385A (en) | 2002-10-23 |
| JP3796414B2 true JP3796414B2 (en) | 2006-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2001117398A Expired - Fee Related JP3796414B2 (en) | 2001-04-16 | 2001-04-16 | 3D image display device and polarized glasses for 3D image display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010064448A1 (en) | 2008-12-05 | 2010-06-10 | パナソニック株式会社 | Stereoscopic video player, stereoscopic video playback system, stereoscopic video playback method, and semiconductor device for stereoscopic video playback |
| WO2011007564A1 (en) | 2009-07-14 | 2011-01-20 | パナソニック株式会社 | Video playback device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3897712B2 (en) * | 2003-02-14 | 2007-03-28 | キヤノン株式会社 | Stereoscopic image display device |
| JP4980780B2 (en) | 2007-04-20 | 2012-07-18 | 株式会社ニデック | Target presentation device |
| JP5209239B2 (en) | 2007-06-22 | 2013-06-12 | 株式会社ニデック | Target presentation device |
| JP5079545B2 (en) | 2008-02-29 | 2012-11-21 | 株式会社ニデック | Target presentation device |
| KR101040701B1 (en) * | 2009-12-22 | 2011-06-13 | 주식회사 엘지화학 | Polarized glasses and stereoscopic display device comprising the same |
| JP5660786B2 (en) * | 2010-02-16 | 2015-01-28 | 富士フイルム株式会社 | Patterning retardation film and manufacturing method thereof, polarized glasses, video display system and manufacturing method thereof |
| JP5631235B2 (en) | 2011-02-18 | 2014-11-26 | 三菱電機株式会社 | Transmitted light selection device, stereoscopic image display device, and stereoscopic image display method |
| US20160352974A1 (en) * | 2015-05-27 | 2016-12-01 | Allan N. Hytowitz | Using Comparative Pixel and Luminance Adjustment for Creating a Varying Acuity Perception |
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- 2001-04-16 JP JP2001117398A patent/JP3796414B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010064448A1 (en) | 2008-12-05 | 2010-06-10 | パナソニック株式会社 | Stereoscopic video player, stereoscopic video playback system, stereoscopic video playback method, and semiconductor device for stereoscopic video playback |
| WO2011007564A1 (en) | 2009-07-14 | 2011-01-20 | パナソニック株式会社 | Video playback device |
Also Published As
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|---|---|
| JP2002311385A (en) | 2002-10-23 |
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