JP3784310B2 - Transfer device - Google Patents

Description

【００７４】
上記表１からわかるように、透明部材１０を設けた場合の画像の鮮明さは、透明部材１０がない場合に比べ感光フィルム４とＬＣＤ素子３との距離が１／２〜１／３に縮まったときに得られる画像と同程度である。また、感光フィルム４とＬＣＤ素子３との距離ｄを３ｍｍとし、透明部材１０として厚さが２．８ｍｍ、１．５ｍｍのガラス板（屈折率ｎ＝１．４８）を挿入し、上述と同様にして転写テストを行った場合（ガラス板上面と感光フィルム４との間隔はそれぞれ０．２ｍｍ、１．５ｍｍである。）、ガラス板の厚さが２．８ｍｍの場合の画像の鮮明さは、感光フィルム４とＬＣＤ素子３とが単に、１〜２ｍｍ離間している場合の画質と同程度である。また、ガラス板の厚さが１．５ｍｍの場合の画像の鮮明さは、感光フィルム４とＬＣＤ素子３とが単に、２ｍｍ離間している場合の画質と同程度である。
【００７５】
次に、本発明の第２の実施形態について説明する。図１１は本発明の第２の実施形態に係る転写装置を示す模式的断面図、図１２は本発明の第２の実施形態に係る転写装置の要部を示す模式的断面図である。本実施形態においては、図１乃至図１０に示す第１の実施形態と同一構成物には同一符号を付してその詳細な説明は省略する。
【００７６】
本実施形態は、第１の実施形態と比較して、多孔板２０が画像表示領域全面に設けられておらず、貫通孔２２が１列形成された多孔板２０であり、多孔板２０を貫通孔２２の配列方向と直交する方向Ａに移動させる移動手段が設けられている点が異なり、それ以外の構成は第１の実施形態と同様である。多孔板２０は、移動手段８によって、バックライトユニット１の射出面の上側をＬＣＤ素子３の一辺に沿って移動させることができる。この多孔板２０の移動方向前後には、多孔板２０の貫通孔２２以外からの光を遮光するための遮光マスク（フィルム）７ａおよび７ｂが配置されている。また、図１１および図１２においては、多孔板２０とバックライトユニット１とは接触しているが、本実施形態では、必ずしも接触している必要はない。
【００７７】
図１３（ａ）は本発明の第２の実施形態の転写装置に使用される多孔板を示す斜視図、（ｂ）は本発明の第２の実施形態の転写装置に使用される多孔板の変形例を示す模式的断面図である。本実施形態に用いられる多孔板２０は、バックライトユニット１とＬＣＤ素子３との間に配置されてバックライトユニット１からの光を実質的に線状の平行光にし、ＬＣＤ素子３に入射する光をなるべく平行にし、ＬＣＤ素子３に垂直に入射させるための線状光化手段である。図１３（ａ）に示すように、所定厚さの矩形板に所定のサイズの貫通孔２２を１列所定ピッチで多数設けたものである。なお、貫通孔２２は複数列設けてもよい。
【００７８】
なお、本発明において、線状光化手段とは、光源からの光を線状の実質的な平行光として透過型画像表示装置に直角に入射させる機能を有するものであり、この線状光化手段の移動方向（透過型ＬＣＤ画面の走査方向）に直交する方向（長手方向）に所定長さを有する線状光を射出するものである。
ここで、この線状光化手段としては、上述の機能を有するものであれば、どのようなものでも良いが、製作が容易な点も考慮して、図１３（ａ）に示すように長手方向に沿って少なくとも１列に配列された多数の貫通孔２２を有し、所定厚さを持ち幅が狭く細長い（狭幅細長の）、いわゆる「柱状の多孔板」とすることが好ましい。
【００７９】
また、本実施形態においては、多孔板２０とＬＣＤ素子３との間隔を、好ましくは、０．０５ｍｍ〜１０ｍｍとし、より好ましくは０．１ｍｍ〜５ｍｍとすることが良い。これは、柱状の多孔板２０に代表される線状光化手段の貫通孔２２のパターンが拡散光による「影」の形で現われるのを防止するためのものである。なお、本実施形態において設定している上記間隔は、上述の「影」は防止できるが、転写画像の鮮明度は低下させない条件である。
【００８０】
また、多孔板２０の材質としては、第１の実施形態と同じものを使用することができる。さらに、多孔板２０に設ける貫通孔２２の形状も、第１の実施形態と同じものにすることができる。
【００８１】
図１４（ａ）乃至（ｄ）は第２の実施形態の転写装置に使用される多孔板の貫通孔の配置を示す正面図であって、（ａ）は貫通孔が３列形成されているものであり、（ｂ）は貫通孔が１列形成されているものであり、（ｃ）は貫通孔が４列形成されているものであり、（ｄ）は貫通孔が２列形成されているものである。また、複数の貫通孔２２を２列以上に配列するときの貫通孔の列の数および配列形状は、特に限定されるものではない。例えば、配列形状は、碁盤目状、千鳥状（最密状）であることが好ましく、より好ましくは千鳥状が良い。また、配列数は、例えば、１列乃至数列であってもよいが、複数列のうち、特に千鳥状に配列する場合には、偶数列が良い。この理由は、図１４（ａ）に示すように、３列、すなわち奇数列配列の貫通孔２２を持つ多孔板２０の場合、Ａ行およびＣ行では第１および３列の２個の貫通孔２２からの光がＬＣＤ素子３を照明するので明るい。しかし、Ｂ行およびＤ行では第２列の１個の貫通孔２２からの光しかＬＣＤ素子３を照明しないので暗い。このため、Ｂ行およびＤ行では暗いスジができる。
【００８２】
また、多孔板２０に設ける複数の貫通孔２２の配列ピッチｐ（図１３（ａ）参照）は、貫通孔２２が均一に配置され、ＬＣＤ素子３の表示画像を鮮明に感光フィルム４に転写できれば、どのようなピッチでも良く、貫通孔２２のサイズなどに応じて適宜設定すれば良い。例えば、配列ピッチｐは、なるべく細かい方が良い。
【００８３】
なお、本実施形態においては、貫通孔２２と貫通孔２２との間隔ｄは、特に限定されるものではないが、配列ピッチｐおよび貫通孔２２のサイズより重要である。その理由は、この貫通孔２２間の間隔ｄを大きくすると、上述の貫通孔２２のパターンが拡散光による「影」を消すために、多孔板２０とＬＣＤ素子３との間の距離を離す必要が出てくるからである。従って、この貫通孔２２間の間隔ｄは、例えば、長手方向（配列方向）における間隔ｙに換算して、１ｍｍ以下とすることが好ましく、より好ましくは０．５ｍｍ以下で、さらに好ましくは、０．２ｍｍ以下であることが良い。なお、貫通孔２２間の間隔ｄの下限値は、特に限定されるものではない。しかし、製作上の容易性を考慮すると、間隔ｄの下限値は、０．０５ｍｍ程度以上であることが好ましい。
【００８４】
なお、長手方向における間隔に換算した貫通孔２２間の間隔ｄとは、図１４（ｂ）に示すように多孔板２０における貫通孔２２の配列が１列である場合、または図１４（ｃ）に示すように複数列（図示例では４列）でも最密状である場合には、最も近接する貫通孔２２間の間隔ｄのことであり、図１４（ｄ）に示すように複数列（図示例では２列）でも千鳥状である場合には、長手方向に直交する方向から投影した時に最も近接する貫通孔２２間の長手方向の間隔ｙのことである。なお、図１４（ｄ）に示すような千鳥状である場合の長手方向と直交する方向の間隔ｘは、上記間隔ｙよりも自由度が大きく、例えば、２ｍｍ以下が好ましく、より好ましくは１ｍｍ以下、さらに好ましくは０．５ｍｍ以下であることが良い。このように、本実施形態の転写装置に用いられる多孔板２０においては、上記間隔ｘおよびｙを同じ位にする必要がなく、例えば、ｙ＝０．２ｍｍであっても、ｘ＝０．５ｍｍまたは１ｍｍとしても良いので、製作上の制限が緩和され、製作が容易となるという重要な特徴を有する。
【００８５】
この多孔板２０の厚さｔ₁ （図１３（ａ）参照）は、貫通孔２２の直径または相当直径の３倍以上であることが好ましい、より好ましくは５倍以上、さらにより好ましくは７倍以上であることが好ましい。なお、上述の相当直径とは、「４×面積／総辺長（または全周長）」で表わされる長さのことである。多孔板２０の貫通孔２２の直径または相当直径を５ｍｍ以下とし、この多孔板２０の厚さｔ₁ が貫通孔２２の直径または相当直径の３倍以上とするのは、これらの条件が、多孔板２０によって平行光を得るために有効な条件だからである。
【００８６】
また、多孔板２０の全表面のうち、少なくとも貫通孔２２の内面を低反射率面で構成することが好ましく、より好ましくは、多孔板２０の全表面を低反射率面で構成することが良い。ここで、低反射率面とは、例えば、黒色化された面または粗面化された面等のように、入射する光の反射率を低下させている面のことをいう。黒色化面を形成する方法としては、特に限定されるものではないが、例えば、多孔板２０を構成する素材自体が黒色のものを用いる方法、または表面の黒色化処理する方法が挙げられる。なお、黒色素材としては、例えば、カーボンブラック粉末を１％以上（好ましくは３％以上）含有する材料またはカーボン粉末を固めた材料などが挙げられる。黒色化処理の例としては、例えば、塗装または化学的処理（メッキ、酸化または電解など) が挙げられる。一方、粗面化処理に関しても、特に限定されるものではないが、例えば、穴を加工する際に同時に粗面化する方法、サンドブラストなどの機械的処理方法またはエッチングなどの化学的処理による方法等の後加工により粗面化する方法などを任意に用いることが可能である。この場合、粗面化の程度としては、例えば、中心線平均粗さで１μｍ〜２０μｍ程度が有効な範囲である。
【００８７】
なお、本実施形態においては、多孔板２０の少なくとも貫通孔２２の内面の反射率は、より好ましくは、多孔板２０の全表面を構成する低反射率面の反射率は、２％以下が好ましく、より好ましくは１％以下が良い。これは、反射率が２％以下であれば、バックライトユニット１から入射した、平行光以外の散乱光を効率良く吸収でき、バックライトユニット１から略平行光（平行光を含む）のみを効率良く射出させて、ＬＣＤ素子３に入射させることができるからである。なお、反射率は、例えば、（株）島津製作所製ＭＰＣ３１００型分光反射率測定機を用い、波長５５０ｎｍで測定することができる。
【００８８】
上述したように、多孔板２０は、光源であるバックライトユニット１と、ＬＣＤ素子３との間に位置し、図１１および図１２中の左右方向（バックライトユニット１の長手方向）に沿って、その移動方向前後に配置される遮光マスク７ａおよび７ｂと共に移動可能に構成されている。この多孔板２０の移動は、面状光源であるバックライトユニット１からの光を、多孔板２０の貫通孔２２以外からの光を遮光すると共に、線状に区切って線状光として順次ＬＣＤ素子３に送るために行われるものである。
【００８９】
なお、この多孔板２０を移動させるための移動手段８は、図中バックライトユニット１の右端側に配置されるモータ８ａと、モータ８ａに取り付けれるプーリ８ｃと、図中バックライトユニット１の左端側に配置されるプーリ８ｃと、これらのプーリ８ｃ、８ｃに張架される、多孔板２０の長手方向の端部が取り付けられる無端ベルト８ｂとを有する。なお、この移動手段８としては、無端ベルト８ｂおよびこれを張架するプーリ８ｃ、８ｃからなるセットを、多孔板２０の長手方向の両端側にそれぞれ取り付け、両無端ベルト８ｂ（一端側のみ図示）を同期させて連続駆動することが好ましい。
【００９０】
また、移動手段８による多孔板２０の移動速度は、光源であるバックライトユニット１の明るさ、多孔板２０の貫通孔２２の大きさ（直径または相当直径）またはピッチなどにより異なるが、毎秒数ｍｍ〜数百ｍｍ程度にすることが好ましい。
なお、本実施形態に用いられる移動手段８は、上述のように多孔板２０の長手方向の端部を無端ベルト８ｂに取り付け、この無端ベルト８ｂを駆動するという方式のみに限定されるものではなく、トラベリングナットに多孔板２０を固定し、トラベリングナットと螺合するドライブスクリュを駆動する方式、またはワイヤの一端に多孔板２０を固定し、ワイヤを巻き取る方式など、従来公知の移動方法であれば、どのような方法を用いても良い。
【００９１】
本実施形態において用いられる線状光化手段としては、上述した柱状の多孔板２０に限定されず、図１３（ｂ）に示すような多孔板２０ａを用いることもできる。図１３（ｂ）に示す多孔板２０ａは、１列に配置された貫通孔２２の上に連続する凹み２２ａを設けて、この凹み２２ａにロッドレンズ２３をセットしたものである。この多孔板２０ａにおいては、ロッドレンズ２３の役目により、多孔板２０ａの貫通孔２２から出射する光を、より平行光化することができる。
【００９２】
さらに、本発明においては、多孔板の代りに、帯状のスリット光を得ることができるスリットを持つスリット板を用いることもできる。しかし、スリットは、その長手方向の光の散乱を多孔板ほど低減できないので、スリット板よりも図１３（ａ）に示す多孔板２０および図１３（ｂ）に示す多孔板２０ａの方が好ましい。しかし、光源からの光の拡散成分が少ない場合、または鮮明度に対する要求が高くない場合には、スリット板を用いても良い。
【００９３】
なお、このＬＣＤ素子３と、多孔板２０との間には、所定の間隙を設けているが、この間隙は、上述したように、好ましくは、０．０５ｍｍ〜１０ｍｍ、より好ましくは０．１ｍｍ〜５ｍｍであるが、任意の寸法に調整可能に構成されていることが好ましい。
【００９４】
本実施形態の転写装置においても、上述したように、実際に取り扱い易い装置とするために必要な条件から、ＬＣＤ素子３と感光フィルム４とを非接触状態で、厳密には、ＬＣＤ素子３の表示面と感光フィルム４の感光面とを非接触状態で、所定の間隔だけ離間させる。本実施形態では、鮮明な転写画像を得るという点おいて、これによって生じる光拡散の増大というマイナス要因をＬＣＤ素子３の表示面と感光フィルム４の感光面との間に所定の厚さの透明なガラスまたはフィルムなどからなる透明部材１０を設けることにより、光拡散の抑制というプラス要因でカバーすることができる。上述の光拡散の抑制というプラス要因としては、さらに多孔板２０の貫通孔２２の直径または相当直径に対する比を３倍以上とすることで光拡散を抑制することが挙げられる。加えて、ＬＣＤ素子３の感光フィルム４側の基板３２と偏光フィルム３１とを合わせた合計厚さｔを規制することによって光拡散を抑制することも挙げられる。これにより、ＬＣＤ素子３と感光フィルム４とを所定の間隔だけ離間させても、より一層鮮明な転写画像を得ることができる。
【００９５】
図１１に示す転写装置を使用し、例えば、以下のようにして本実施形態の効果を確認することができる。まず、ＬＣＤ素子３と感光フィルム４との間隔ｄを変えて、すなわち、透明部材１０の厚さを変えて感光フィルム４にＬＣＤ素子３に表示されたデジタル記録された画像を記録して記録画像を得る。また、図１１に示す転写装置から透明部材１０を除いたものを使用し、ＬＣＤ素子３と感光フィルム４との間隔ｄを変えて感光フィルム４にＬＣＤ素子３に表示されたデジタル記録された画像を記録して記録画像を得る。なお、透明部材１０は上述の第１の実施形態と同様のものを使用する。また、多孔板２０として、直径０．５ｍｍの円形の貫通孔２２をピッチ（ｐ）を０．７ｍｍで直線状に設けたものを使用し、黒色化処理を行う。なお、多孔板２０の厚さを６ｍｍとし、多孔板２０の上面からＬＣＤ素子３までの距離Ｄを４ｍｍとする。また、移動手段８による多孔板２０の移動速度は１５０ｍｍ／秒とする。なお、上記各転写テストにおいては、得られる転写画像の濃度がほぼ同一になるように光源の点灯時間を調整して行う。
【００９６】
所定の厚さの透明部材１０を使用して得られた画像と同程度の鮮明さの画像が、透明部材１０がない場合における感光フィルム４とＬＣＤ素子３との距離が何ｍｍで得られるのかを評価した場合、下記表２に示すような結果が得られる。透明部材１０は、その厚さが感光フィルム４とＬＣＤ素子３との距離に略等しいものを使用する。
【００９７】
【表２】

【００９８】
上記表２からわかるように、透明部材１０を設けた場合の画像の鮮明さは、透明部材１０がない場合に比べ感光フィルム４とＬＣＤ素子３との距離が１／２〜１／３に縮まったときに得られる画像と同程度である。また、感光フィルム４とＬＣＤ素子３との距離ｄを３ｍｍとし、透明部材１０として厚さが２．８ｍｍ、１．５ｍｍのガラス板（屈折率ｎ＝１．４８）を挿入し、上述と同様にして転写テストを行った場合（ガラス板上面と感光フィルム４との間隔はそれぞれ０．２ｍｍ、１．５ｍｍである。）、ガラス板の厚さが２．８ｍｍの場合の画像の鮮明さは、感光フィルム４とＬＣＤ素子３とが単に、１〜２ｍｍ離間している場合の画質と同程度である。また、ガラス板の厚さが１．５ｍｍの場合の画像の鮮明さは、感光フィルム４とＬＣＤ素子３とが単に、２ｍｍ離間している場合の画質と同程度である。
【００９９】
次に、本発明の第３の実施形態について説明する。図１５は本発明の第３の実施形態に係る転写装置を示す模式的断面図、図１６（ａ）は本実施形態の転写装置の動作を示す模式図、（ｂ）は本実施形態の転写装置の動作の変形例を示す模式図である。なお、本実施形態においては、図１１乃至図１４に示す第２の実施形態と同一構成物には、同一符号を付してその詳細な説明は省略する。
本実施形態は、第２の実施形態と比較して、光源および移動手段が異なり、それ以外の構成は第２の実施形態と同様である。すなわち、第２の実施形態に係る転写装置は、面状光源であるバックライトユニット１を用い、線状光化手段である多孔板２０を用いて線状略平行光を生成するものであった。しかし、本実施形態は、図１５に示すように、線状光源１１ａである棒状ランプとして、例えば、直管冷陰極管を用いる。
【０１００】
図１５、図１６（ａ）および（ｂ）に示す本実施形態の転写装置は、線状光源１１ａと多孔板２０とが結合され、線状略平行光生成ユニット１ａとして一体化されており、遮光マスク７ａおよび７ｂが備えられていない点が、第２の実施形態の転写装置と異なり、それ以外は同じ構成である。
【０１０１】
図１５に示す転写装置において、線状略平行光生成ユニット１ａは、棒状ランプ（例えば、直管冷陰極管）からなる線状光源１１ａと、線状光化手段としての柱状の多孔板２０とを結合して一体化されたユニットとしたもので、線状光源１１ａからの光を線状の実質的な平行光として透過型のＬＣＤ素子３に直角に入射させる機能を有するものであり、この線状略平行光生成ユニット１ａと透過型ＬＣＤ素子３との相対的な移動方向（透過型ＬＣＤ素子３の表示画面の走査方向）に直交する方向（長手方向）に幅を有する線状光を射出するものである。
【０１０２】
図１６（ａ）に示すように、本実施形態においては、固定されている透過型のＬＣＤ素子３に対して、線状略平行光生成ユニット１ａ側が移動するものである。また、本実施形態の変形例として、図１６（ｂ）に示すように、固定されている線状略平行光生成ユニット１ａに対して、感光フィルム４と一体化されたＬＣＤ素子３側が移動するものとしてもよい。このように、本変形例は感光フィルム４の２枚分のスペースが必要である。このため、図１６（ａ）に示す実施形態のほうが、装置構成をコンパクトにできるので、線状略平行光生成ユニット１ａ側が移動する方が好ましい。
【０１０３】
線状略平行光生成ユニット１ａに用いられる線状光源１１ａは、冷陰極線管等の棒状ランプと、拡散フィルムまたはリフレクタ等の反射板などを有し、棒状ランプからの光を拡散フィルムまたは反射板などを用いて均一に拡散させるようにしたものであるが、本実施形態はこれに限定されず、帯状の光が得られれば、どのようなものでも良く、例えば、棒状の光源、細長い有機ＥＬパネルまたは無機ＥＬパネル等を組み合せて所定長の光源等とスリット板とを用いて帯状のスリット光とするものであっても良い。また、ＬＥＤ等を列状に配置して列状の点状光を得るものであっても良い。後者の場合には、ＬＥＤと多孔板２０の貫通孔２２との位置を合わせることが好ましい。
【０１０４】
なお、本実施形態において、線状略平行光生成ユニット１ａに用いられる線状光化手段は、図１３（ａ）および（ｂ）に示す多孔板２０および２０ａを用いることができるのはもちろん、図１１に示す第２の実施形態の転写装置に適用できるものは、全て適用可能である。
【０１０５】
また、本実施形態においては、図１５に示すように、線状光源１と多孔板２０とを一体化した線状略平行光生成ユニット１ａ自体を移動手段８の無端ベルト８ｂに取り付けるものであり、線状光化手段（多孔板２０）を移動手段８の無端ベルト８ｂに取り付ける図１１に示す第２の実施形態の場合とは異なるが、移動手段８の機能および作用ならびに移動手段８による線状光化手段（多孔板）の機能および作用は同様であるのはいうまでもない。図１５に示す本実施形態の転写装置では、図１１に示す第２の実施形態の転写装置と同様に、移動手段８による線状略平行光生成ユニット１ａの移動により、線状略平行光生成ユニット１ａからの線状の光を順次ＬＣＤ素子３に照射して、ＬＣＤ素子３上に表示されている画像を走査露光により透明部材１０を介して照明する。これにより、略平行光の拡散角度が多少大きくても感光フィルム４にＬＣＤ素子３に表示されている画像と略同じ大きさで画像を転写することができる。
なお、図１５に示す本実施形態の転写装置では、図１１に示す第２の実施形態に係る転写装置に比べ、光源のサイズを小さくできるので、装置構成をさらに小型化できる。
【０１０６】
図１７は第３の実施形態に係る転写装置の他の変形例を示す模式図である。なお、図１７においては、線状略平行光生成ユニット１ａ、感光フィルム４、透明部材１０およびＬＣＤ素子３のみ示し、他の構成については図示していない。本変形例においては、線状略平行光生成ユニット１ａが移動する方向Ａと貫通孔２２の軸方向とが平行になるように、線状略平行光生成ユニット１ａが配置されている。多孔板２０の出射側の端面にミラー２４が、多孔板２０からの出射光をＬＣＤ素子３に入射させるように、方向Ａに対して４５°の角度で配置されている。本変形例の構成とすれば、第３の実施形態と同様の効果を得ることができるとともに、第３の実施形態のものよりもさらに小型化することができる。
【０１０７】
上述のいずれの実施形態においても、透明部材１０を設けることにより、ＬＣＤ素子３と感光フィルム４との距離を離しても画質が優れた画像を得ることができる。このため、フィルムケースの形状の制約が緩和される。また、略平行光生成素子として多孔板を使用したが、これに限定されるものではなく、例えばセルフォックレンズなどを使用しても良い。また、第２および第３の実施形態においても、透明部材１０に第１の実施形態の第１および第２の変形例に示す透明部材１０ｃ、１０ｄを適用できる。また、第２および第３の実施形態においても、感光フィルム４の画像領域（図示せず）およびＬＣＤ素子３の画像領域（図示せず）については、第１の実施形態と同様にすることができることはいうまでもない。
【０１０８】
【発明の効果】
以上、詳細に説明したように、本発明によれば、例えばＬＣＤ素子である画像表示装置の画像表示面と、例えば感光フィルムである感光性記録媒体の記録面との間に屈折率が１よりも大きく、厚さが一定の透明平板を設け、さらに、光源と画像表示装置との間に複数の貫通孔が形成された多孔板を設けるので、簡単な構成で、真に小型軽量化、低消費電力化および低コスト化を可能にする転写装置を実現することが可能である。
なお、上記基本構成に、前述のような付加的な条件を加味することにより、さらに効果を高めることができるものである。
【０１０９】
また、本発明によれば、通常の画素密度の液晶ディスプレイから高い画素密度の高精細画面を持つ液晶ディスプレイまでの使用を可能として、実用に耐える鮮明度の写真画像からより鮮明度の高い高精細な転写画像までの中の所望の鮮明度の転写画像を得ることができる。
【図面の簡単な説明】
【図１】 本発明の第１の実施形態に係る転写装置を示す模式的側断面図である。
【図２】 本発明の第１の実施形態に係る転写装置の要部を示す模式的断面図である。
【図３】 （ａ）は本実施形態の転写装置に使用される多孔板を示す正面図、（ｂ）は本実施形態の転写装置に使用される多孔板の第１の変形例を示す正面図、（ｃ）は本実施形態の転写装置に使用される多孔板の第２の変形例を示す正面図である。
【図４】 本実施形態の転写装置に使用される透過型の液晶表示素子の構造を示す断面図である。
【図５】 本実施形態の転写装置に使用されるフィルムパック５の一例の構造を示す斜視図である。
【図６】 第１の実施形態に係る転写装置の第１の変形例を示す模式的断面図である。
【図７】 第１の実施形態に係る転写装置の第２の変形例を示す模式的断面図である。
【図８】 第２の変形例の転写装置に使用される透明部材を示す斜視図である。
【図９】 本発明の実施形態に係る転写装置の効果を説明する模式図である。
【図１０】 本発明の実施形態に係る転写装置において透明部材が設けられていないものを示す模式図である。
【図１１】 本発明の第２の実施形態に係る転写装置を示す模式的断面図である。
【図１２】 本発明の第２の実施形態に係る転写装置の要部を示す模式断面図である。
【図１３】 （ａ）は本発明の第２の実施形態の転写装置に使用される多孔板を示す斜視図、（ｂ）は本発明の第２の実施形態の転写装置に使用される多孔板の変形例を示す模式的断面図である。
【図１４】 （ａ）乃至（ｄ）は第２の実施形態の転写装置に使用される多孔板の貫通孔の配置を示す正面図である。
【図１５】 本発明の第３の実施形態に係る転写装置を示す模式的断面図である。
【図１６】 （ａ）は本実施形態の転写装置の動作を示す模式図、（ｂ）は本実施形態の転写装置の動作の変形例を示す模式図である。
【図１７】 第３の実施形態の他の変形例を示す模式図である。
【図１８】 （ａ）は従来技術２の印写装置を示す側面図、（ｂ）は図１８（ａ）のＤ部拡大図である。
【図１９】 従来技術２の他の実施形態の印写装置を示す斜視図である。
【符号の説明】
１ バックライトユニット
２、２０ 多孔板
２１、２２ 貫通孔
３ ＬＣＤ素子
３１、３７ 偏光板
３２、３６ 基板
３３、３５ 電極
３４ 液晶層
４ 感光フィルム（インスタント写真用フィルム）
５ フィルムパック
５１ フィルムケース
５２ 切り欠き
５３ 露光済みフィルムの取出口
５４ 開口部
６ 本体ケース
６１ 露光済みフィルムの送り出し兼処理液展開ローラ対
６２ 取出口
１０ 透明部材
２４ ミラー[0001]
BACKGROUND OF THE INVENTION
The present invention displays an image digitally recorded by a digital still camera (DSC), a video camera, a personal computer (personal computer), or the like on a transmissive image display device composed of a liquid crystal display device, and uses the displayed image. The present invention relates to a transfer device that transfers (image formation) to a photosensitive recording medium such as an instant photographic film that develops color by light.
[0002]
[Prior art]
Conventionally, as a method for transferring, printing, or recording a digitally recorded image on a recording medium, various methods such as an ink jet method having a dot print head, a laser recording method, or a thermal recording method are known.
Printing methods such as the above-described ink jet method have problems that printing takes time, ink is easily clogged, and printed paper gets wet with ink when precise printing is performed. In addition, the laser recording method requires an expensive optical component such as a lens, so that there is a problem that the cost of the apparatus increases. Further, the laser recording method or the thermal recording method has a problem that power consumption is large and it is not suitable for carrying.
As described above, in the transfer apparatus based on the recording method as described above, the drive mechanism and the control mechanism become more complicated as the precise printing is performed in the inkjet method, and the apparatus is large and expensive. It will be something. Furthermore, there is a problem that printing also takes time.
[0003]
On the other hand, in Japanese Patent Laid-Open No. 10-309829 (hereinafter referred to as Conventional Technology 1) and Japanese Patent Laid-Open No. 11-242298 (hereinafter referred to as Conventional Technology 2), a display image is instantiated using a liquid crystal display device. A transfer device is disclosed that is formed on a photosensitive recording medium such as a film, thereby simplifying the device structure and reducing the cost.
First, the electronic printer disclosed in the prior art 1 can generate a photographic quality hard copy by copying a display screen of a liquid crystal display onto a photosensitive medium.
[0004]
FIG. 18A is a side view showing a printing apparatus according to the prior art 2, and FIG. 18B is an enlarged view of a portion D in FIG. On the other hand, the printing apparatus disclosed in the prior art 2 does not require expensive optical parts such as a lens or secures a focal length of an appropriate length, so that the printing apparatus can be further improved compared to the conventional transfer apparatus. It is possible to reduce the size, weight, power consumption, and cost. As shown in FIG. 18A, a photosensitive film 400 is brought into close contact with a display surface of a transmissive liquid crystal display (hereinafter referred to as LCD) 300, and a light source (on the opposite side of the LCD 300 from the photosensitive film 400) is provided. The backlight 100) is turned on. That is, by turning on the fluorescent lamp 101 and turning on the backlight 100, the image displayed on the LCD 300 is printed on the photosensitive film 400. As shown in FIG. 18B, in the LCD 300, the total thickness of the polarizing plate 301 on the display surface side, the glass substrate 302, the liquid crystal layer 303, the glass substrate 304, and the polarizing plate 305 on the backlight 100 side is 2. 8 mm.
[0005]
FIG. 19 is a perspective view showing a printing apparatus according to another embodiment of Prior Art 2. FIG. In another embodiment of the prior art 2, as shown in FIG. 19, diffusion of light from the backlight 100 is suppressed by providing a lattice 200 between the backlight 100 and the LCD 300. That is, the light from the backlight 100 is brought close to parallel light. Further, by providing a spacer 201 made of a rectangular hollow cylinder between the lattice 200 and the LCD 300, an image of the shape of the frame of the lattice 200 (shadows by the frame) can be prevented from appearing on the photosensitive film 400. In addition, an image in which the sharpness of an image formed on the photosensitive film 400 is improved to a level that does not cause a practical problem without providing an optical component or securing a focal length of an appropriate length is disclosed. ing.
[0006]
Further, in the prior art 2, as shown in FIG. 18B, the LCD 300 screen with a total thickness of 2.8 mm and a dot size of 0.5 mm is printed on the photosensitive film 400 as shown in FIG. An example of a printing device is shown. In order to prevent diffusion of light emitted from the LCD 300, a grating 200 having a thickness of 10 mm and a through-hole size of 5 mm square is disposed, and a spacer 201 having a length of 20 mm is provided between the grating 200 and the LCD 300. Further, it is shown that the LCD 300 and the photosensitive film 400 are in close contact with each other to prevent the image from blurring (unsharpening) and to print.
[0007]
In this case, an image displayed with an original dot size of 0.5 mm is enlarged and transferred to a maximum of 0.67 mm on the surface of the photosensitive film 400, but this is enlarged by about 0.09 mm when viewed on one side. Although this is the case, the images are said to be sufficiently practical.
[0008]
[Problems to be solved by the invention]
However, since the transfer device disclosed in the related art 1 copies the display screen of the liquid crystal display onto the photosensitive medium, an optical device such as a rod lens array is provided between the display screen of the liquid crystal display and the photosensitive medium. Since parts are used, there is a problem that the optical member is expensive. In addition, a predetermined distance (total conjugate length) is required between the liquid crystal display and the photosensitive medium. In the prior art 1, for example, a total conjugate length of 15.1 mm is required.
[0009]
Further, the printing apparatus disclosed in the prior art 2 prints the LCD 300 and the photosensitive film 400 in close contact with each other, thereby preventing blurring of the image and obtaining an image that can be used practically. However, the contact exposure of the display image on the LCD 300 to the photosensitive film 400 has the following problems.
[0010]
First, as shown in FIG. 18A, a film-like polarizing plate 301 is disposed on the outermost surface of the LCD 300, and when the photosensitive film 400 is brought into close contact with the polarizing plate 301 during exposure. When the photosensitive film 400 is moved for subsequent processing, the photosensitive film 400 and the polarizing plate 301 are rubbed to scratch the film-like polarizing plate 301, and the scratches generated on the polarizing plate 301 are damaged. 400 is transferred. In addition, there is a problem that the image quality is deteriorated by scattering light from the scratch.
[0011]
On the other hand, it is also conceivable that both are brought into close contact during exposure, and the photosensitive film 400 and the polarizing plate 301 are slightly separated when the photosensitive film 400 is moved. However, for this purpose, in addition to the moving mechanism of the photosensitive film 400, a new mechanism for bringing the photosensitive film 400 into close contact and separation is required, which causes a problem of cost reduction and downsizing.
[0012]
In general, a photosensitive film, for example, the most convenient instant film, is stored in a light shielding case until it is loaded in a printing apparatus, and this light shielding case is provided with an opening frame somewhat larger than the image size of the film. It has been. For this reason, in order to adhere the photosensitive film and the polarizing plate, the following procedure is required.
[0013]
Before exposure, first, a single photosensitive film is taken out from the light shielding case, and is closely attached to the polarizing plate surface of the LCD surface. Exposure is performed in this state, and after completion of exposure, the photosensitive film is separated from the polarizing plate surface and moved for processing (in this case, in the case of an instant film, the processing solution tube set in the film sheet is pushed through. )
[0014]
It is necessary to repeat such a procedure for each photosensitive film, and in particular, it is not suitable for automation (or mechanization) to separate the adhered photosensitive film from the polarizing plate surface. is there.
[0015]
By the way, in recent years, LCDs have been made finer, and LCDs with a larger number of pixels, that is, with smaller dot sizes are being commercialized. For example, UXGA (10.4 inches, 1200 × 1600 pixels) and XGA (6.3 and 4 inches, 1024 × 768 pixels) are commercially available for low-temperature polysilicon type TFT LCDs.
[0016]
Even if an LCD having such a fine screen is applied to the printing apparatus disclosed in the prior art 2, in UXGA, the dot size of each RGB pixel is about 0.04 mm on the short side, In a situation where dot size enlargement occurs as in the printing apparatus disclosed in Technology 2, an LCD image of such a small dot size is used in a state where the dots of individual RGB pixels can be clearly identified. In addition, there is a problem that it becomes impossible to transfer with high definition.
[0017]
An object of the present invention is to solve the above-described problems of the prior art, and with a simple configuration, it is possible to realize a truly small size, light weight, low power consumption and low cost, and to be portable. It is to provide a transfer device.
[0018]
Another object of the present invention is to enable use from a liquid crystal display having a normal pixel density to a liquid crystal display having a high-definition screen having a high pixel density. An object of the present invention is to provide a transfer device capable of obtaining a photographic image having a desired sharpness in a high-definition photographic image.
[0019]
[Means for Solving the Problems]
In order to achieve the above object, the inventors of the present application can obtain a photographic image having a desired sharpness, and have a high pixel density and a high definition with a structure in which a liquid crystal layer is sandwiched between substrates from both sides with higher practicality. As a result of intensive research on a transfer device that can use a transmissive image display device such as a liquid crystal display with a screen, the transmissive image display device and photosensitivity necessary to increase its practicality with a simple configuration. In order to make the recording medium non-contact and to prevent the blur (unsharpness) of the image inevitably caused by the separation between the two, the refractive index between the two is higher than that of air, that is, the refractive index is more than 1. It has been found that it is necessary to provide a large transparent member, and the present invention has been achieved.
[0020]
That is, the present invention provides a light source, a transmissive image display device having a structure in which a liquid crystal layer is sandwiched between substrates from both sides, and a photosensitive recording medium, and the image display surface of the image display device and the photosensitive recording medium. A transfer device that is arranged in series along the light traveling direction of the light source so as to face the recording surface of the light source and transfers the display image that has passed from the transmissive image display device to the recording surface of the photosensitive recording medium The image display surface of the transmissive image display device and the recording surface of the photosensitive recording medium are spaced apart, and a gap between the transmissive image display device and the photosensitive recording medium. The refractive index is greater than 1 at a position matching the image display surface of The thickness in the region corresponding to the image display surface is constant Transparent Flat plate Is provided Furthermore, a perforated plate having a plurality of through holes formed between the light source and the image display device is provided. The present invention provides a transfer device characterized by the above.
[0021]
In such a transfer apparatus of the present invention, The image display device displays an image using RGB dots, and transfers the RGB dots of the display image displayed on the image display surface of the image display device to the recording surface of the photosensitive recording medium. It is preferable to do. The transparent flat plate has a recess formed on a surface of the photosensitive recording medium facing the recording surface, and the transparent flat plate and the photosensitive recording medium are in contact with each other at an outer edge of an image area. preferable. Furthermore, a substantially parallel light generating element is provided between the light source and the transmissive image display device so that light from the light source becomes substantially parallel light and enters the image display surface of the image display device perpendicularly. It is preferable. Further, the light from the light source is linearly substantially parallel light and is incident perpendicularly to the image display surface of the image display device, and the linearly parallel light causes the image display surface of the image display device to be Similarly, it is also preferable to provide a linear light generating means for scanning relatively.
[0022]
In addition, Transparent plate Is a plate-like member having a constant thickness, for example. Said Transparent plate Is a thickness corresponding to the distance between the image display surface of the screen display device and the recording surface of the photosensitive recording medium, or a thickness corresponding to the distance between the image display surface and the recording surface. It may be slightly thinner. In this case, “slightly” means from 0.01 mm to about half the distance corresponding to the distance between the image display surface and the recording surface.
The screen display device and the photosensitive recording medium do not need to be separated more than necessary. If the screen display device and the photosensitive recording medium are separated from each other, the thickness of the transfer device increases accordingly. In addition, when the screen display device and the photosensitive recording medium are brought close to each other, blurring of the image is reduced. Transparent plate Is no longer necessary. For this reason, Transparent plate The thickness is preferably 0.1 mm to 5 mm, more preferably 0.5 mm to 3 mm.
[0023]
Furthermore, in the present invention, the total thickness of at least the substrate on the photosensitive recording medium side and the polarizing plate is preferably 1.0 mm or less, more preferably 0.8 mm or less, and still more preferably. It is 0.6 mm or less.
In addition, the separation distance between the transmissive image display device and the photosensitive recording medium is preferably 0.01 mm to 3 mm or less, more preferably 0.1 mm to 3 mm.
Moreover, it is preferable that the size of the display image is substantially the same as the size of the image transferred to the photosensitive recording medium.
The size of each pixel of the image display device is preferably 0.2 mm or less.
[0024]
In each of the above transfer devices, Many Smell in the hole plate And It is preferable that the thickness of the perforated plate is at least three times the diameter of the through-hole or the equivalent diameter. More preferably 5 times or more, particularly preferably 7 times or more.
In addition, it is preferable that the said through-hole is a parallel through-hole and the planar shape of the said through-hole is circular or a polygon.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a transfer device according to the present invention will be described in detail based on a preferred embodiment shown in the accompanying drawings. FIG. 1 is a schematic sectional side view showing a transfer apparatus according to the first embodiment of the present invention, and FIG. 2 is a schematic sectional view showing a main part of the transfer apparatus according to the first embodiment of the present invention. is there. In FIG. 2, the film case 51 is omitted.
[0026]
As shown in FIG. 1 and FIG. 2, the transfer device of the present embodiment includes a backlight unit 1 serving as a light source, a porous plate 2 for generating substantially parallel light, and a liquid crystal display element that displays a digitally recorded image ( (Hereinafter referred to as LCD element) 3, film case 51 for accommodating photosensitive film 4 as a photosensitive recording medium, transparent member 10 disposed between LCD element 3 and photosensitive film 4, and these backlight units 1, a perforated plate 2, an LCD element 3, and a main body case 6 containing a film case 51. The LCD element 3 corresponds to the image display device in the present invention. The film case 51 is provided with an outlet 53 on one side surface in the longitudinal direction of the photosensitive film 4. An opening 54 is formed on the surface of the film case 51 facing the LCD element 3. The hatched portion of the photosensitive film 4 shown in FIG. 1 indicates the image region 4 a of the photosensitive film 4, and the hatched portion of the LCD element 3 indicates the image region 3 a of the LCD element 3.
[0027]
Here, the porous plate 2, the LCD element 3, the transparent member 10, and the photosensitive film 4 are arranged in series along the traveling direction of light from the backlight unit 1, and the image area of the LCD element 3 3a (image display surface) and the image area 4a (recording surface) of the photosensitive film 4 are opposed to each other. The LCD element 3 and the film case 51 are in close contact with each other. The transparent member 10 is provided in alignment with the opening 54 between the image display surface of the LCD element 3 and the recording surface of the photosensitive film 4. The transparent member 10 has a substantially rectangular parallelepiped shape (plate shape) and is larger than the image region 3 a of the LCD element 3 and larger than the opening 54 of the film case 51. The transparent member 10 has a higher refractive index than air. That is, the refractive index of the transparent member 10 is greater than 1. The transparent member 10 may be in contact with the photosensitive film 4 or may be slightly separated. When the transparent member 10 is in contact with the photosensitive film 4, if the transparent member 10 is made of, for example, glass or hard plastic, the surface of the transparent member 10 is scratched even if the transparent member 10 and the photosensitive film 4 are rubbed. I can't.
[0028]
The transparent member 10 is made of, for example, glass or transparent resin. Examples of the glass include quartz glass, soda lime glass, borosilicate glass, lead glass, and fluoride glass. In addition, as transparent resins, polytetrafluoroethylene, poly-4-methylpentene-1, polymethyl methacrylate, polyvinyl alcohol, diethylene glycol bisallyl carbonate polymer, polycyclohexyl methacrylate, polyethylene, polyacrylonitrile, nylon 6, polybenzyl methacrylate, Examples thereof include styrene / acrylonitrile copolymers, polyphenyl methacrylate, polydiallyl phthalate, polystyrene, polyvinyl chloride, polyvinyl naphthalene, and polyvinyl carbazole. In order to reduce chromatic aberration when transmitting through the transparent member 10, a material having a large Abbe number is preferable. In the present embodiment, the Abbe number is preferably 30 or more, and more preferably 50 or more. Furthermore, it is more preferable that the material has a small birefringence. In the present invention, transparent means colorless transparent, colored transparent, translucent or the like, and a colored transparent plate corresponding to the color of light irradiated by the light source 11 may be selected. Preferably, a colorless transparent plate is used.
[0029]
If the photosensitive film 4 can be exposed in a short time with the light amount of the display image of the LCD element 3 that uses the light emitted from the backlight unit 1 as transmitted light, the perforated plate 2 may not be disposed.
[0030]
The backlight unit 1 serving as a light source is for irradiating the entire surface of the LCD element 3 with uniform light, and has a plane shape having substantially the same light emission surface (light emitting surface) as the display screen of the LCD element 3. It is a light source, a rod-shaped lamp 11 such as a cold cathode ray tube, a light guide plate (not shown) for introducing light emitted from the rod-shaped lamp 11 in a predetermined direction, and light introduced into the light guide plate in a direction substantially orthogonal to the light source plate. The backlight assembly includes a reflection sheet (not shown) to be reflected, a diffusion sheet (not shown) that uniformizes light reflected by the reflection sheet, a prism sheet, and the like.
[0031]
The backlight unit 1 used in the present embodiment is not particularly limited, and the light emitted from the rod-shaped lamp 11 is uniform using a backlight assembly including a light guide plate, a reflection sheet, a diffusion sheet, and a prism sheet. Any planar light source can be used as long as it is diffused into the LCD, and a conventionally known LCD backlight unit can be used. In the illustrated example, the size of the light emitting surface (light emitting surface) can be configured to be the same as the size of the image region 3a of the LCD element 3 or the image region 4a of the photosensitive film 4, but is not necessarily limited thereto. However, the size may be slightly larger than the size of the image area 3 a of the LCD element 3 or the image area 4 a of the photosensitive film 4.
Further, the backlight unit 1 used in the present embodiment can be a light source using an LED array light source, an organic EL panel, an inorganic EL panel, or the like as long as it is a planar light source capable of emitting light having a required light intensity. is there.
[0032]
FIG. 3A is a front view showing a perforated plate used in the transfer device of the present embodiment, and FIG. 3B is a front view showing a first modification of the perforated plate used in the transfer device of the present embodiment. (C) is a front view which shows the 2nd modification of the perforated panel used for the transfer apparatus of this embodiment. As shown in FIG. 3A, the perforated plate 2 used in the present embodiment is disposed between the backlight unit 1 and the LCD element 3 as necessary, and the light from the backlight unit 1 is transmitted. This is a substantially parallel light generating element for making substantially parallel light (including parallel light) and making light incident on the LCD element 3 as parallel as possible. A through-hole 21 having a predetermined size is formed in a rectangular plate having a predetermined thickness. A large number of pitches are provided. In the present embodiment, a plurality of through holes 21 are formed such that the position of the apex of the equilateral triangle is the center. Each through hole 21 has a distance between the edges of 0.1 mm.
[0033]
In addition, as a substantially parallel light production | generation element used in this embodiment, if it has the same function, it will not specifically limit, It is not limited to the perforated panel 2. In addition, it can also be a lattice, for example, a rectangular lattice 21a shown in FIG. 3B, a hexagonal lattice 21b shown in FIG. However, it is preferable to use a porous plate in consideration of easy manufacture.
[0034]
In the present embodiment, the distance between the perforated plate 2 and the LCD element 3 is preferably 0.05 mm to 10 mm, and more preferably 0.1 mm to 5 mm. This is to prevent the pattern of the through hole 21 of the substantially parallel light generating element represented by the perforated plate 2 from appearing in the form of a “shadow” due to the diffused light. The interval set here is a condition for preventing the above-mentioned “shadow” and preventing the sharpness of the transferred image from decreasing.
[0035]
Here, the material of the porous plate 2 is not particularly limited. For example, a metal plate such as an aluminum plate having a predetermined thickness, a resin plate, a carbon material plate, or the like can be used. The thickness of the perforated plate 2 is not particularly limited, either according to the required sharpness of the transferred image or according to the size of the display screen of the LCD element 3 or the photosensitive surface of the photosensitive film 4. The selection may be made as appropriate. Moreover, as a manufacturing method of the porous plate 2, a method of laminating a porous sheet or a molding (molding) method using a resin is practical, but is not particularly limited as long as it can be processed. Any processing method may be used including a method for drilling holes.
[0036]
Further, the arrangement shape and arrangement pitch of the plurality of through holes 21 provided in the perforated plate 2 may be any as long as the through holes 21 are arranged uniformly. For example, the array shape of the through holes 21 may be a grid pattern or a zigzag pattern (closest density), and preferably a zigzag pattern. In addition, the arrangement pitch of the through holes 21 is preferably as fine as possible, and the distance between the through holes 21 and the through holes 21 (the distance between the edges of the through holes 21) is preferably 0.05 to 0.5 mm. Preferably 0.05-0.3 mm is good.
[0037]
Moreover, the shape of the through-hole 21 provided in the perforated plate 2 is not particularly limited, and may be, for example, a cylindrical shape, an elliptical cylindrical shape, or a polygonal cylindrical shape. That is, the planar shape of the through-hole 21 is not particularly limited, and can be, for example, a circle, an ellipse, or a polygon. However, in order to facilitate manufacture, the shape may be a circle or a polygon. preferable. The through hole 21 is preferably a parallel through hole in the thickness direction of the perforated plate 2, but may be any as long as it can be regarded as substantially parallel.
The size of the through hole 21 is not particularly limited, but the diameter (in the case of a circle) or the equivalent diameter (in the case of an ellipse or a polygon) of the through hole 21 of the porous plate 2 is 5 mm or less. It is preferable that the thickness of the porous plate 2 is at least three times the diameter of the through hole 2 or the equivalent diameter. In addition, the above-mentioned equivalent diameter is a length represented by “4 × area / total side length (or total circumferential length)”. The diameter or equivalent diameter of the through hole 21 of the perforated plate 2 is set to 5 mm or less, and the thickness of the perforated plate 2 is set to 3 times or more the diameter of the through hole 21 or the equivalent diameter. This is because this is an effective condition for obtaining parallel light. In particular, the thickness of the porous plate 2 should be 5 times or more, more preferably 7 times or more the diameter or equivalent diameter of the through hole 21.
[0038]
Further, it is preferable to provide an antireflection film on the entire surface of the porous plate 2 including the inner surface of the through hole 21. The antireflection film is not particularly limited as long as the reflectance is a predetermined value or less, and examples thereof include a black plating film, a blackening treatment film, and a black coating film. In the present invention, the reflectance is preferably 2% or less. If the reflectance is 2% or less, it is possible to efficiently absorb scattered light other than parallel light incident from the backlight unit 1, and only substantially parallel light (including parallel light) from the backlight unit 1 can be efficiently absorbed. This is because it can be emitted well and incident on the LCD element 3. The reflectance can be measured at a wavelength of 550 nm using, for example, an MPC3100 type spectral reflectance measuring machine manufactured by Shimadzu Corporation.
[0039]
The LCD element 3 is a transmissive image display device for displaying a digitally recorded image, and is connected to a digital image data supply unit such as a digital still camera, a digital video camera, or a personal computer, and supplied digitally The display image is displayed as a transmission image according to the image data. The digital image data supply unit such as a digital camera connected to the LCD element 3 is configured to select and supply an arbitrary image from images prepared in advance. The digital image data supplied to the LCD element 3 may be data read from a transparent original or a reflective original by a scanner or the like in addition to the case described above. The LCD element 3 may be anything as long as it can display an image as a transmission image, and displays an image based on analog image data of an image taken by a normal video camera, even if it is not digital image data. It may be a thing.
[0040]
Note that a predetermined gap is provided between the LCD element 3 and the perforated plate 2, and as described above, this gap is preferably 0.05 mm to 10 mm, more preferably 0.8 mm. 1 mm to 5 mm. However, it is preferably configured to be adjustable to an arbitrary size.
[0041]
FIG. 4 is a cross-sectional view showing the structure of a transmissive liquid crystal display element used in the transfer apparatus of this embodiment. As shown in FIG. 4, the LCD element 3 includes a film-like polarizing plate (hereinafter also referred to as a polarizing film) 31 and a glass substrate from the photosensitive film 4 side toward the porous plate 2 side (backlight unit 1 side). 32, an electrode 33, a liquid crystal layer 34, an electrode 35, a glass substrate 36, and a film-like polarizing plate 37, and the liquid crystal layer 34 is formed by glass substrates 32, 36 and polarizing plates 31, 37 from both sides thereof. It has a sandwiching structure. As is well known, it is needless to say that a black matrix (not shown), an RGB color filter (not shown), an alignment film (not shown) and the like are also provided. Here, for example, in the case of a TFT type LCD, the electrode 33 is a common electrode, and a black matrix and an RGB color filter are disposed between the electrode 33 and the glass substrate 32. The electrode 35 is a display electrode, a gate electrode, or the like. Instead of the glass substrates 32 and 36, a resin substrate or the like may be used.
[0042]
The structure of the LCD element 3 has a conventionally known liquid crystal display mode as long as an image can be displayed except for the total thickness of the polarizing film 31 and the glass substrate 32 on the side of the photosensitive film 4 to be described later. A known drive type LCD element can be used. For example, examples of the liquid crystal display mode include a liquid crystal display mode using a polarizing plate such as a TN mode, an STN mode, a CSH mode, an FLC, and an OCB mode. Examples of the driving method include an active matrix driving method such as a TFT type and a diode type, and a direct matrix driving method composed of XY stripe electrodes.
[0043]
The size of the LCD element 3 is not particularly limited, and may be any size and may be appropriately selected according to the size of the photosensitive film. Further, the dot size of each of the RGB pixels of the LCD element 3 is not particularly limited, but in order to obtain a clearer high-quality photographic image, the size of at least the short side of each pixel is 0. It is preferable that it is 2 mm or less. This is because a clearer transfer image can be obtained when the size of at least the short side of each pixel is 0.2 mm or less.
[0044]
The number of pixels or the pixel density of the LCD element 3 is not particularly limited, but in order to transfer and obtain a high-definition and high-definition high-quality image, each of the RGB pixels that have been commercially available in recent years is used. It is preferable to use an LCD having a high definition screen with a small dot size. Examples of such LCDs include TFT type LCDs such as UXGA (10.4 inches, 1200 × 1600 pixels) or XGA (6.3 and 4 inches, 1024 × 768 pixels).
[0045]
In the LCD element 3 used in the present embodiment, at least the total thickness t of the substrate 32 on the photosensitive film 4 side and the polarizing film 31 is preferably as thin as possible, and is preferably 1.0 mm or less. More preferably, it is 0.8 mm or less, and still more preferably 0.6 mm or less.
[0046]
More preferably, the total thickness of the substrate 36 and the polarizing film 37 on the backlight unit 1 (perforated plate 2) side is preferably thin, and is preferably 1.0 mm or less. More preferably, it is 0.8 mm or less, and still more preferably 0.6 mm or less. Further, the lower limit value of the total thickness is not particularly limited. For example, in the case of the glass substrate 32, it is considered that the limit of reducing the thickness of the glass substrate 32 is about 0.5 mm. It is good also as above. The total thickness is not limited to these, and it is also effective to consider the use of a resin substrate instead of a glass substrate as a configuration for realizing the above conditions. The lower limit of the total thickness of about 5 mm can be further reduced.
[0047]
Hereinafter, the reason why the total thickness t of the substrate 32 on the photosensitive film 4 side and the polarizing film 31 in the present embodiment is 1.0 mm or less will be described.
This total thickness condition corresponds to suppressing the diffusion of light in the section from the backlight unit 1 to the LCD element 3. Strictly speaking, even if the LCD element 3 and the photosensitive film 4 are not in contact with the display surface of the LCD element 3 and the photosensitive surface of the photosensitive film 4, a clearer transfer image can be obtained. is there.
That is, in the transfer device according to the present invention, although the transparent member 10 is provided, the display surface of the LCD element 3 and the photosensitive surface of the photosensitive film 4 are separated from each other by a predetermined distance to be in a non-contact state. . This non-contact condition is a necessary condition for a transfer device that has a simple configuration, has practicality, and is actually easy to handle. However, this is a negative factor in that it promotes the diffusion of light between the display surface of the LCD element 3 and the photosensitive surface of the photosensitive film 4 to obtain a clear transferred image. For this reason, in the present invention, by providing the transparent member 10 having a refractive index larger than 1 (a refractive index higher than that of air), the minus amount (increased diffusion of light) due to the non-contact state is provided. The increase in diffusion is suppressed. Further, it is covered with a plus amount (a portion for suppressing the diffusion of light) by setting the ratio of the thickness of the porous plate 2 to the diameter of the through-hole 21 or the equivalent diameter to be three times or more. .
[0048]
By the way, as described above, the conventional printing apparatus disclosed in the related art 2 shown in FIGS. 18A and 18B uses the LCD 300 having a thickness of about 2.8 mm. As shown in FIG. 18B, the LCD 300 is composed of two polarizing plates 301 and 305, two substrates 302 and 304, and a liquid crystal layer 303 sandwiched between them. Although not disclosed in prior art 2, generally, the thickness of the liquid crystal layer itself is about 0.005 mm (color TFT liquid crystal display: p207, see Kyoritsu Publishing Co., Ltd.). And the polarizing plate 302 (304) are considered to have a thickness of about 1.3 mm to 1.4 mm.
Here, since the diffusion degree of light is proportional to the distance, if the thickness of 1.3 mm to 1.4 mm is halved, the diffusion degree is also halved. It is estimated that the value “enlarged by about 0.09 mm on one side” also decreases to 1/2 of that, that is, about 0.04 mm to 0.05 mm. However, at this degree of diffusion, as described in the section of the prior art, in an LCD having a fine dot size such as the latest UXGA or XGA, overlapping of adjacent dots occurs.
[0049]
That is, only by reducing the diffusion degree to about 0.04 mm to 0.05 mm, dot overlap occurs, color blur due to this occurs, and only a blurred image can be obtained. However, as described in Japanese Patent Application No. 2001-316670, the inventors of the present application set the total thickness of the substrate 32 on at least one side of the LCD element 3 and the polarizing film 31 to 1.0 mm or less. It has been found that, even in an LCD element having a fine dot size such as UXGA or XGA, color blur due to overlapping of dots is eliminated and a clear transferred image can be obtained. Furthermore, as described above, by providing the transparent member 10 having a refractive index larger than 1 between the photosensitive film 4 and the LCD element 3, the refractive index is maintained while light passes through the transparent member 10. Accordingly, the diffusion angle becomes smaller. It has been found that the spread of the image can be further prevented by the decrease in the diffusion angle. Further, light scattered below the critical angle of the transparent member 10 among the scattered light scattered on the surface of the LCD element 3 is not incident on the photosensitive film 4. For this reason, only the light component in the direction necessary for exposure printing can be made incident on the photosensitive film 4. Therefore, compared to the case where the distance between the LCD element 3 and the photosensitive film 4 is equal and the transparent member 10 is not provided, even in the LCD element 3 having a fine dot size such as UXGA or XGA, the dots overlap. The resulting color blur is further eliminated and a clear transferred image is obtained.
[0050]
In the present embodiment, the photosensitive surface of the photosensitive film 4 is configured to be arranged on the display screen of the LCD element 3 with a predetermined gap therebetween. A plurality of photosensitive films 4 are stored in a film case 51. In the present embodiment, the film case 51 is mounted in the main body case 6, and a plurality of sheets are attached to the film case 51 that can be attached and detached even if one set (pack) of a plurality of photosensitive films 4 is loaded. The film pack 5 containing the photosensitive film 4 may be loaded into the main body case 6 as it is. However, it is preferable that the film pack 5, that is, the film case 51 containing a plurality of photosensitive films 4 can be loaded together with the film case 51.
[0051]
The photosensitive film 4 is used as the photosensitive recording medium of the present invention. The photosensitive recording medium of the present invention is not particularly limited as long as it can form a visible positive image by exposure printing of the transmission display image of the LCD element 3, and is not particularly limited. So-called instant photographic films are preferred. Examples of the photosensitive film 4 used as such a photosensitive recording medium include a monosheet type instant photographic film “Instacks Mini” or “Instacks” (both manufactured by Fuji Photo Film Co., Ltd.).
Such instant photographic films are commercially available as so-called film packs having a predetermined number of films in a film case.
Therefore, in the present invention, if the gap between the photosensitive surface of the photosensitive film 4 and the display screen of the LCD element 3 can be arranged so as to satisfy the conditions described later, the film pack 5 is directly attached to the main case as shown in FIG. 6 can also be loaded.
[0052]
In this embodiment, when the film pack 5 is used, for example, the opening area of the opening 54 of the film case 51 is made larger than the image area 4 a of the photosensitive film 4. Of course, the area defined by the outer shape of the LCD element 3 is larger than the image area 3 a of the LCD element 3. In this embodiment, the image area 3a of the LCD element is preferably the same as the image area 4a of the photosensitive film 4. In this case, the size relationship of the size of each part is the image area 4 a of the photosensitive film 4 ≦ size of the transparent member 10 ≦ opening area of the opening 54 of the film pack 5. Usually, the area defined by the outer shape of the LCD element 3 is larger than the opening area of the opening 54 of the film pack 5. However, it is very preferable that the opening area of the opening 54 of the film pack 5 is larger than the area defined by the outer shape of the LCD element 3.
[0053]
FIG. 5 is a perspective view showing an example of the structure of the film pack 5 used in the transfer apparatus of this embodiment. In the film pack 5 having the structure as shown in FIG. 5, a claw member (claw) for taking out the film sheet 4 from the film pack 5 (the film case 51) can enter one end of the film case 51. A notch 52 is provided. The exposed film sheet 4 is taken out from the outlet 53 of the film case 51 of the film pack 5 by the claw member, and sent to the processing step by a transport mechanism (not shown).
In addition, the processing step in this embodiment means that a processing solution (developing solution) tube (not shown) provided in advance at one end of the film sheet 4 is pushed through, and the developing solution is evenly distributed over the entire surface of the film sheet 4. The film sheet 4 is taken out and conveyed from the film pack 5 at substantially the same time. The film sheet 4 that has undergone the processing step is sent out of the apparatus from an outlet 62 (see FIG. 1) of the main body case 6.
[0054]
As is well known, this type of instant photographic film forms a complete image in about several tens of seconds after the above-described processing steps, and can be used for viewing. Therefore, in the transfer apparatus of the present invention, the functions required until the above-described processing steps are performed. After one film sheet is sent out, the next film sheet appears, and a ready state for the next exposure (transfer) is realized.
As for the method for handling the film pack described above, reference can be made to an instant camera using an instant photographic film previously disclosed in Japanese Patent Application Laid-Open No. 4-194432, which was previously filed by the present applicant.
[0055]
By the way, in the transfer apparatus of the present invention, as described above, the LCD element 3 and the photosensitive film 4 are in a non-contact state, strictly speaking, from the conditions necessary for making the apparatus easy to handle. The display surface and the photosensitive surface of the photosensitive film 4 are separated from each other by a predetermined distance in a non-contact state. In the present invention, in terms of obtaining a clear transfer image, a negative factor of the increase in light diffusion caused by this is to provide a transparent member 10 having a refractive index larger than 1 between the LCD element 3 and the photosensitive film 4 described above. By providing it, it is covered by a positive factor of suppressing light diffusion. As a positive factor for the suppression of the light diffusion described above, it is further possible to suppress the light diffusion by setting the ratio of the through hole 21 of the porous plate 2 to the diameter or the equivalent diameter to be three times or more. In addition, light diffusion can be suppressed by regulating the total thickness t of the substrate 32 on the photosensitive film 4 side of the LCD element 3 and the polarizing film 31. Thereby, even if the LCD element 3 and the photosensitive film 4 are separated by a predetermined distance, a clearer transfer image can be obtained.
[0056]
In the present embodiment, the thickness of the transparent member is the same as the distance between the image display surface of the LCD element 3 and the recording surface of the photosensitive film 4. However, the thickness of the transparent member is not limited to this, and the thickness of the transparent element is 0.01 mm thinner than the distance between the image display surface of the LCD element 3 and the recording surface of the photosensitive film 4. The thickness may be up to about half the distance between the image display surface and the recording surface of the photosensitive film 4. The LCD element 3 and the photosensitive film 4 do not need to be separated more than necessary. If the LCD element 3 and the photosensitive film 4 are separated from each other, the thickness of the transfer device increases accordingly. Further, when the LCD element 3 and the photosensitive film 4 are brought close to each other, image blurring is reduced, so that the transparent member 10 becomes unnecessary. For this reason, the thickness of the transparent member 10 is preferably 0.1 mm to 5 mm, and more preferably 0.5 mm to 3 mm.
[0057]
In the transfer apparatus according to the present invention, the separation distance between the LCD element 3 (image display surface thereof) and the photosensitive film 4 (photosensitive surface thereof) is preferably 0.01 mm to 3 mm, more preferably 0. It is good that it is 1 mm to 3 mm. As described above, this is rather a negative factor from the point of obtaining a clear transfer image, but it is a necessary condition for an apparatus that is actually easy to handle. This is because the transparent member 10 can be covered between the element 3 and the photosensitive film 4 by a plus factor of suppressing light diffusion caused by, for example, providing a glass plate. Furthermore, by defining the thicknesses of the perforated plate 2 and the LCD element 3, the effect can be further enhanced.
[0058]
6 is a schematic cross-sectional view showing a first modification of the transfer device according to the first embodiment, FIG. 7 is a schematic cross-sectional view showing a second modification of the transfer device according to the first embodiment, FIG. 8 is a perspective view showing a transparent member used in the transfer device of the second modification.
In the present embodiment, the shape of the transparent member 10 is not limited to a rectangular parallelepiped shape (plate shape), but is aligned with the opening 54 on the upper surface of the base 10a having the same size as the film case 51 as shown in FIG. It can be set as the transparent member 10c of convex shape in the cross section view in which the protrusion part 10b was formed. In the transparent member 10 c, the protruding portion 10 b is fitted into the opening 54, and the edge of the base portion 10 a contacts the film case 51. The LCD element 3 is disposed on the lower surface of the transparent member 10c. In this case, the film case 51 and the LCD element 3 are separated from each other.
[0059]
In the present embodiment, as shown in FIGS. 7 and 8, a transparent member 10 d in which a concave portion 10 f is formed on an upper surface 10 e of a rectangular parallelepiped facing the photosensitive film 4 may be used. In this case, the film case 51 and the LCD element 3 are in contact with each other. Thus, even if the photosensitive film 4 is mounted on the surface of the transparent member 10d by forming the concave portion 10f on the upper surface 10e facing the photosensitive film 4, the transparent member 10 and the photosensitive film 4 are images. Since the contact is made only at the outer edge of the region 4a, the image region 4a of the photosensitive film 4 is hardly scratched, which is more preferable.
[0060]
In the transfer device of this embodiment, it is preferable that the size of the image displayed on the LCD element 3 is substantially the same as the size of the image transferred to the photosensitive film 4. This is because, in the present embodiment, it is possible to realize a reduction in size and weight of the apparatus by adopting the direct transfer method without performing enlargement or reduction using a lens system.
[0061]
The main body case 6 includes the components of the above-described embodiment, that is, the backlight unit 1, the perforated plate 2, the LCD element 3, the transparent member 10, the film pack 5 (or the film case 51), and the delivery of the exposed film. This is a case for storing the processing liquid developing roller pair 61 and the like inside. In the main body case 6, the exposed film feeding / processing liquid developing roller pair 61 is attached at a position facing the exposed film outlet 53 of the loaded film pack 5 (or film case 51). Further, the main body case 6 has an opening 62 for opening the exposed film 4 from the main body case 6 at a position facing the roller pair 61. Further, a backup pressing pin 63 is inserted into the main body case 6 from the opening on the back side of the exposed film pack 5 to press the film sheet 4 against the front edge of the film case 51, that is, the LCD element 3 side. Is provided.
[0062]
Although not shown, the transfer device of the present embodiment is a power source (motor) for driving the roller pair 61 or a power source for driving this or lighting the bar light source 11 of the backlight unit 1. , An electrical component for controlling these, a data processing device for receiving digital image data from the digital image data supply unit to display the image on the LCD element 3, and converting it into image data for LCD display, and a control device. Of course. The transfer apparatus according to this embodiment is basically configured as described above.
[0063]
In the present embodiment, the image supplied from the digital image data supply unit is displayed on the LCD element 3. Next, the rod-shaped lamp 11 is turned on, and substantially parallel light enters the display surface of the LCD element 3 vertically through the perforated plate 2. Then, the image displayed on the LCD element 3 is exposed and printed on the photosensitive film 4. Thereby, a transfer image is formed on the photosensitive film 4.
[0064]
FIG. 9 is a schematic diagram for explaining the effect of the transfer device according to the embodiment of the present invention, and FIG. 10 is a schematic diagram showing the transfer device according to the embodiment of the present invention in which a transparent member is not provided. The LCD element 3 shown in FIGS. 9 and 10 has a liquid crystal layer (not shown) sandwiched between glass substrates 32 and 36 having polarizing films 31 and 37 attached to their surfaces. The LCD element 3 is provided with a plurality of sets each including a red pixel 3R, a green pixel 3G, and a blue pixel 3B. 9 and 10, only one set of red pixel 3R, green pixel 3G, and blue pixel 3B is shown.
As shown in FIG. 9, when the LCD element 3 and the photosensitive film 4 are arranged with a gap of 3 mm and a glass plate having a refractive index n of 1.5 having the same thickness as the gap is provided. Will be described. When the diffusion angle of the surface of the LCD element 3 (= incident angle to the high refractive index object) is θ and the diffusion angle in the high refractive index material is γ, the refractive index n is expressed by the following formula (1): When the spread amount due to the diffusion angle γ on the surface of the photosensitive film 4 is δ, the spread amount δ is expressed by the following formula (2).
[0065]
sin γ = sin θ / n (1)
[0066]
δ = d × tan γ (2)
In the above formula (2), d is the distance between the surface of the LCD element 3 and the photosensitive film surface.
[0067]
For example, when diffused light that spreads by 5 ° is incident on the blue pixel 3B of the LCD element 3 with respect to a direction perpendicular to the back surface of the LCD element 3 shown in FIG. The light from the surface 3 toward the photosensitive film 4 is refracted by the transparent member 10, and the diffusion angle of light from the surface of the LCD element 3 is 3.3 ° according to the equation (1). At this time, the spread amount δ = δe due to the diffusion angle on the surface of the photosensitive film 4 is 0.17 mm according to the equation (2). That is, the size of the blue pixel 3B is transferred after being diffused by 0.34 mm in total. In this case, refraction in the LCD element 3 and refraction due to the gap between the transparent member 10 and the photosensitive film 4 and the LCD element 3 are ignored. In the example shown in FIG. 9, the diffusion angle is 5 ° using the porous plate 2 having a hole diameter of 0.5 mm, the plate thickness of 5.75 mm, and the transparent member 10 having a refractive index n of 1.5. An image obtained by irradiating the LCD element 3 with light could withstand practical use.
[0068]
On the other hand, as shown in FIG. 10, the case where the LCD element 3 and the photosensitive film 4 are arranged with a gap of 3 mm and the transparent member 10 is not provided will be described. As described above, when substantially parallel light having a diffusion angle of 5 ° is incident on the back surface of the LCD element 3, the diffusion angle of the outgoing light emitted from the surface of the LCD element 3 does not change from the equation (1). At this time, according to the equation (2), the spread amount δ = δc due to the diffusion angle on the surface of the photosensitive film 4 is 0.26 mm. That is, the size of the blue pixel 3B is transferred with a total diffusion of 0.52 mm.
Thus, by providing the transparent member 10 having a refractive index larger than 1, a clear image can be obtained even if the diffusion angle of light incident on the LCD element 3 is somewhat large. Of the light incident on the LCD element 3, incident light having a angle less than the critical angle of the glass substrate 3 b of the LCD element 3 cannot be emitted from the surface of the LCD element 3. This also occurs in the transparent member 10. Therefore, in the present invention, when substantially parallel light is incident on the LCD element 3 as compared with the case where the transparent member 10 is not provided, the influence of the diffusion angle of the substantially parallel light is suppressed, and the LCD element 3 The effect of the scattered light due to the light can be reduced and substantially parallel light can be incident on the photosensitive film 4. Further, in the present invention, when the transparent member 10 is not provided, the same effect as that obtained when the distance between the LCD element 3 and the photosensitive film 4 is reduced can be obtained. In the example illustrated in FIG. 9, the distance is approximately 2 mm when converted to an interval when the transparent member 10 is not provided. Note that the thickness of the transparent member 10 may be adjusted as appropriate in accordance with the resolution of the LCD element 3.
[0069]
For these reasons, in this embodiment, in order to obtain an image quality equivalent to that without the transparent member 10, the diffusion angle of substantially parallel light may be slightly larger than that without the transparent member 10. Thereby, the hole diameter of the through-hole 21 of the porous plate 2 can be enlarged, or the plate | board thickness of the porous plate 2 can be made thin.
Further, in the example shown in FIG. 9, the hole diameter can be set to 0.75 mm in order to obtain an image having the same image quality as that of the example shown in FIG. Thereby, the rigidity of the pin of the metal mold | die used when shape | molding the perforated panel 2 can be improved. Therefore, the bending of the pin and the like during the formation of the perforated plate 2 are greatly reduced. Furthermore, since the number of holes is reduced, the number of pins is also reduced, and the mold can be manufactured at low cost.
[0070]
Further, using the transfer apparatus shown in FIG. 1, for example, the effect of the present embodiment can be confirmed as follows. First, a digitally recorded image displayed on the LCD element 3 is recorded on the photosensitive film 4 by changing the distance d between the LCD element 3 and the photosensitive film 4, that is, by changing the thickness of the transparent member 10. Get. Further, a digitally recorded image displayed on the LCD element 3 on the photosensitive film 4 is used by changing the distance d between the LCD element 3 and the photosensitive film 4 using the transfer device shown in FIG. To obtain a recorded image.
[0071]
As the transparent member 10, a lead glass plate (refractive index n = 1.48) and a high refractive index glass plate (refractive index n = 1.80) are used. In the porous plate 2, circular through holes 21 having a diameter of 0.5 mm are provided in a close-packed state with a pitch of 0.7 mm (in this case, indicated by the thickness of the partition wall, see FIG. 3A). Use a material and perform blackening treatment. The thickness of the porous plate 2 is 6 mm, and the distance D from the upper surface of the porous plate 2 to the LCD element 3 is 4 mm. In each of the above transfer tests, the lighting time of the light source is adjusted so that the density of the obtained transfer image is substantially the same.
[0072]
In what mm is the distance between the photosensitive film 4 and the LCD element 3 in the absence of the transparent member 10, an image as sharp as an image obtained using the transparent member 10 having a predetermined thickness is obtained. As shown in Table 1, the results shown in Table 1 below are obtained. The transparent member 10 has a thickness approximately equal to the distance between the photosensitive film 4 and the LCD element 3.
[0073]
[Table 1]

[0074]
As can be seen from Table 1, the clearness of the image when the transparent member 10 is provided is such that the distance between the photosensitive film 4 and the LCD element 3 is reduced to ½ to １ ／ compared to the case where the transparent member 10 is not provided. It is almost the same as the image obtained when Further, a distance d between the photosensitive film 4 and the LCD element 3 is set to 3 mm, and a glass plate (refractive index n = 1.48) having a thickness of 2.8 mm and 1.5 mm is inserted as the transparent member 10, and the same as described above. When the transfer test is performed (the distance between the upper surface of the glass plate and the photosensitive film 4 is 0.2 mm and 1.5 mm, respectively), the clearness of the image when the thickness of the glass plate is 2.8 mm is The image quality is the same as that when the photosensitive film 4 and the LCD element 3 are merely 1 to 2 mm apart. Further, the clearness of the image when the thickness of the glass plate is 1.5 mm is comparable to the image quality when the photosensitive film 4 and the LCD element 3 are simply separated by 2 mm.
[0075]
Next, a second embodiment of the present invention will be described. FIG. 11 is a schematic cross-sectional view showing a transfer apparatus according to the second embodiment of the present invention, and FIG. 12 is a schematic cross-sectional view showing a main part of the transfer apparatus according to the second embodiment of the present invention. In the present embodiment, the same components as those in the first embodiment shown in FIGS. 1 to 10 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0076]
Compared with the first embodiment, the present embodiment is a porous plate 20 in which the perforated plate 20 is not provided on the entire surface of the image display area and the through holes 22 are formed in one row, and the perforated plate 20 is penetrated. The difference is that a moving means for moving in the direction A perpendicular to the arrangement direction of the holes 22 is provided, and the rest of the configuration is the same as in the first embodiment. The perforated plate 20 can be moved along one side of the LCD element 3 above the emission surface of the backlight unit 1 by the moving means 8. Light shielding masks (films) 7 a and 7 b for shielding light from other than the through holes 22 of the porous plate 20 are arranged in the front and rear of the movement direction of the porous plate 20. In FIGS. 11 and 12, the perforated plate 20 and the backlight unit 1 are in contact with each other. However, in the present embodiment, they are not necessarily in contact with each other.
[0077]
FIG. 13A is a perspective view showing a perforated plate used in the transfer apparatus according to the second embodiment of the present invention, and FIG. 13B shows a perforated plate used in the transfer apparatus according to the second embodiment of the present invention. It is typical sectional drawing which shows a modification. The perforated plate 20 used in the present embodiment is disposed between the backlight unit 1 and the LCD element 3 so that the light from the backlight unit 1 becomes substantially linear parallel light and enters the LCD element 3. This is a linear light generating means for making the light as parallel as possible and allowing the light to enter the LCD element 3 perpendicularly. As shown in FIG. 13A, a rectangular plate having a predetermined thickness is provided with a large number of through holes 22 of a predetermined size at a predetermined pitch in a row. The through holes 22 may be provided in a plurality of rows.
[0078]
In the present invention, the linear light generating means has a function of causing the light from the light source to enter the transmission image display device at right angles as linear substantially parallel light. Linear light having a predetermined length is emitted in a direction (longitudinal direction) orthogonal to the moving direction of the means (scanning direction of the transmissive LCD screen).
Here, any linear light generating means may be used as long as it has the above-mentioned function. However, in view of easy manufacture, the linear light generating means is long as shown in FIG. It is preferable to form a so-called “columnar perforated plate” having a plurality of through holes 22 arranged in at least one row along the direction and having a predetermined thickness and a narrow and narrow width (narrow and narrow).
[0079]
In the present embodiment, the distance between the perforated plate 20 and the LCD element 3 is preferably 0.05 mm to 10 mm, and more preferably 0.1 mm to 5 mm. This is to prevent the pattern of the through holes 22 of the linear light generating means represented by the columnar porous plate 20 from appearing in the form of “shadows” due to diffused light. The interval set in the present embodiment is a condition that can prevent the above-mentioned “shadow” but does not decrease the sharpness of the transferred image.
[0080]
Moreover, as a material of the porous plate 20, the same thing as 1st Embodiment can be used. Furthermore, the shape of the through hole 22 provided in the perforated plate 20 can also be the same as that in the first embodiment.
[0081]
FIGS. 14A to 14D are front views showing the arrangement of the through holes of the perforated plate used in the transfer apparatus of the second embodiment, and FIG. 14A shows three rows of through holes. (B) is one in which through holes are formed in one row, (c) is one in which four rows of through holes are formed, and (d) is one in which two rows of through holes are formed. It is what. Further, the number and arrangement shape of the through holes when the plurality of through holes 22 are arranged in two or more rows are not particularly limited. For example, the array shape is preferably a checkerboard shape or a staggered shape (closest density), more preferably a staggered shape. Further, the number of arrangements may be, for example, one to several, but even columns are preferable among the plurality of arrangements, particularly when arranged in a staggered pattern. The reason for this is that, as shown in FIG. 14 (a), in the case of a perforated plate 20 having through-holes 22 in three rows, that is, odd-numbered rows, two through-holes in the first and third columns in rows A and C Since the light from 22 illuminates the LCD element 3, it is bright. However, the B and D rows are dark because only the light from one through-hole 22 in the second column illuminates the LCD element 3. For this reason, dark streaks are formed in the B and D rows.
[0082]
Further, the arrangement pitch p (see FIG. 13A) of the plurality of through holes 22 provided in the perforated plate 20 is such that the through holes 22 are evenly arranged and the display image of the LCD element 3 can be clearly transferred to the photosensitive film 4. Any pitch may be used, and it may be set as appropriate according to the size of the through-hole 22. For example, the arrangement pitch p should be as fine as possible.
[0083]
In the present embodiment, the distance d between the through holes 22 is not particularly limited, but is more important than the arrangement pitch p and the size of the through holes 22. The reason is that if the distance d between the through holes 22 is increased, the pattern of the through holes 22 described above eliminates the “shadow” caused by the diffused light, so that the distance between the perforated plate 20 and the LCD element 3 needs to be increased. Because it comes out. Therefore, the distance d between the through holes 22 is preferably 1 mm or less, more preferably 0.5 mm or less, and still more preferably 0, in terms of the distance y in the longitudinal direction (arrangement direction). It is good that it is 2 mm or less. Note that the lower limit value of the distance d between the through holes 22 is not particularly limited. However, in consideration of ease of manufacture, the lower limit of the distance d is preferably about 0.05 mm or more.
[0084]
In addition, the space | interval d between the through-holes 22 converted into the space | interval in a longitudinal direction is the case where the arrangement | sequence of the through-holes 22 in the perforated panel 20 is one row, as shown in FIG.14 (b), or FIG.14 (c). As shown in FIG. 14, when the plurality of rows (four rows in the illustrated example) are close-packed, it is the distance d between the through holes 22 that are closest to each other, and as shown in FIG. In the case of a zigzag pattern even in the case of two rows in the illustrated example, it is the distance y in the longitudinal direction between the through holes 22 that are closest to each other when projected from a direction orthogonal to the longitudinal direction. Note that the interval x in the direction orthogonal to the longitudinal direction in the case of a zigzag shape as shown in FIG. 14D has a greater degree of freedom than the interval y, for example, preferably 2 mm or less, more preferably 1 mm or less. More preferably, it is 0.5 mm or less. Thus, in the perforated plate 20 used in the transfer device of the present embodiment, the intervals x and y do not have to be the same. For example, even if y = 0.2 mm, x = 0.5 mm. Alternatively, the thickness may be 1 mm, which has an important feature that restrictions on manufacturing are relaxed and manufacturing is easy.
[0085]
The thickness t of the perforated plate 20 ₁ (See FIG. 13 (a)) is preferably at least 3 times the diameter or equivalent diameter of the through hole 22, more preferably at least 5 times, and even more preferably at least 7 times. In addition, the above-mentioned equivalent diameter is a length represented by “4 × area / total side length (or total circumferential length)”. The diameter or equivalent diameter of the through hole 22 of the porous plate 20 is set to 5 mm or less, and the thickness t of the porous plate 20 ₁ Is set to be three times or more the diameter or equivalent diameter of the through-hole 22 because these conditions are effective conditions for obtaining parallel light by the porous plate 20.
[0086]
Moreover, it is preferable that at least the inner surface of the through-hole 22 of the entire surface of the porous plate 20 is configured with a low reflectance surface, and more preferably, the entire surface of the porous plate 20 is configured with a low reflectance surface. . Here, the low reflectance surface means a surface that reduces the reflectance of incident light, such as a blackened surface or a roughened surface. The method for forming the blackened surface is not particularly limited, and examples thereof include a method using a black material for the perforated plate 20 or a method for blackening the surface. Examples of the black material include a material containing 1% or more (preferably 3% or more) of carbon black powder or a material obtained by solidifying carbon powder. Examples of the blackening treatment include, for example, painting or chemical treatment (plating, oxidation, electrolysis, etc.). On the other hand, the surface roughening treatment is not particularly limited, but, for example, a method of roughening simultaneously when processing a hole, a mechanical treatment method such as sand blasting, or a method by chemical treatment such as etching, etc. A method of roughening by post-processing or the like can be arbitrarily used. In this case, as the degree of roughening, for example, an effective range is about 1 μm to 20 μm in terms of centerline average roughness.
[0087]
In the present embodiment, the reflectance of at least the inner surface of the through hole 22 of the porous plate 20 is more preferably 2% or less, preferably the reflectance of the low reflectance surface constituting the entire surface of the porous plate 20. More preferably, 1% or less is good. If the reflectance is 2% or less, it is possible to efficiently absorb scattered light other than parallel light incident from the backlight unit 1, and only substantially parallel light (including parallel light) from the backlight unit 1 can be efficiently absorbed. This is because it can be emitted well and incident on the LCD element 3. The reflectance can be measured at a wavelength of 550 nm using, for example, an MPC3100 type spectral reflectance measuring machine manufactured by Shimadzu Corporation.
[0088]
As described above, the perforated plate 20 is located between the backlight unit 1 that is a light source and the LCD element 3, and extends in the left-right direction (the longitudinal direction of the backlight unit 1) in FIGS. 11 and 12. The light shielding masks 7a and 7b arranged before and after the moving direction are configured to be movable. The movement of the perforated plate 20 shields light from the backlight unit 1 as a planar light source from light other than the through holes 22 of the perforated plate 20 and sequentially separates the light into linear light as LCD light. To be sent to 3.
[0089]
The moving means 8 for moving the perforated plate 20 includes a motor 8a disposed on the right end side of the backlight unit 1 in the figure, a pulley 8c attached to the motor 8a, and a left end of the backlight unit 1 in the figure. A pulley 8c arranged on the side, and an endless belt 8b attached to the end of the perforated plate 20 in the longitudinal direction and stretched around the pulleys 8c, 8c. As the moving means 8, a set including an endless belt 8b and pulleys 8c and 8c for stretching the endless belt 8b is attached to both ends in the longitudinal direction of the perforated plate 20, and both endless belts 8b (only one end side is shown). Are preferably driven continuously in synchronization with each other.
[0090]
The moving speed of the perforated plate 20 by the moving means 8 varies depending on the brightness of the backlight unit 1 as a light source, the size (diameter or equivalent diameter) of the through holes 22 of the perforated plate 20, or the pitch. It is preferable to set it to about mm to several hundred mm.
The moving means 8 used in the present embodiment is not limited to the method of attaching the end of the porous plate 20 in the longitudinal direction to the endless belt 8b and driving the endless belt 8b as described above. Any known moving method such as a method in which the porous plate 20 is fixed to the traveling nut and a drive screw that is screwed with the traveling nut is driven, or a method in which the porous plate 20 is fixed to one end of the wire and the wire is wound up. Any method may be used.
[0091]
The linear light generating means used in the present embodiment is not limited to the columnar porous plate 20 described above, and a porous plate 20a as shown in FIG. 13B can also be used. A perforated plate 20a shown in FIG. 13 (b) is obtained by providing a continuous recess 22a on a through hole 22 arranged in a row and setting a rod lens 23 in the recess 22a. In the perforated plate 20a, the light emitted from the through hole 22 of the perforated plate 20a can be made more parallel by the role of the rod lens 23.
[0092]
Further, in the present invention, a slit plate having a slit capable of obtaining strip-shaped slit light can be used instead of the perforated plate. However, since the slit cannot reduce light scattering in the longitudinal direction as much as the perforated plate, the perforated plate 20 shown in FIG. 13 (a) and the perforated plate 20a shown in FIG. 13 (b) are preferable to the slit plate. However, a slit plate may be used when there is little diffusion component of light from the light source or when the demand for clarity is not high.
[0093]
Note that a predetermined gap is provided between the LCD element 3 and the perforated plate 20, and as described above, this gap is preferably 0.05 mm to 10 mm, more preferably 0.1 mm. Although it is -5mm, it is preferable that it is comprised so that adjustment to arbitrary dimensions is possible.
[0094]
Also in the transfer device of this embodiment, as described above, the LCD element 3 and the photosensitive film 4 are in a non-contact state, strictly speaking, from the conditions necessary for making the device easy to handle. The display surface and the photosensitive surface of the photosensitive film 4 are separated from each other by a predetermined distance in a non-contact state. In the present embodiment, in terms of obtaining a clear transfer image, a negative factor of the increase in light diffusion caused by this is a transparent film having a predetermined thickness between the display surface of the LCD element 3 and the photosensitive surface of the photosensitive film 4. By providing the transparent member 10 made of transparent glass or film, it can be covered by a plus factor of suppressing light diffusion. As a positive factor for suppressing the light diffusion described above, it is possible to suppress the light diffusion by further increasing the ratio of the diameter of the through hole 22 of the porous plate 20 or the equivalent diameter to three times or more. In addition, light diffusion can be suppressed by regulating the total thickness t of the substrate 32 on the photosensitive film 4 side of the LCD element 3 and the polarizing film 31. Thereby, even if the LCD element 3 and the photosensitive film 4 are separated by a predetermined distance, a clearer transfer image can be obtained.
[0095]
Using the transfer device shown in FIG. 11, for example, the effect of this embodiment can be confirmed as follows. First, the distance d between the LCD element 3 and the photosensitive film 4 is changed, that is, the thickness of the transparent member 10 is changed, and the digitally recorded image displayed on the LCD element 3 is recorded on the photosensitive film 4 to record the recorded image. Get. Further, a digitally recorded image displayed on the LCD element 3 on the photosensitive film 4 is used by changing the distance d between the LCD element 3 and the photosensitive film 4 using the transfer device shown in FIG. To obtain a recorded image. The transparent member 10 is the same as that in the first embodiment described above. Moreover, as the perforated plate 20, a circular through hole 22 having a diameter of 0.5 mm provided in a straight line with a pitch (p) of 0.7 mm is used for blackening treatment. The thickness of the porous plate 20 is 6 mm, and the distance D from the upper surface of the porous plate 20 to the LCD element 3 is 4 mm. The moving speed of the perforated plate 20 by the moving means 8 is 150 mm / second. Note that each of the above transfer tests is performed by adjusting the lighting time of the light source so that the density of the obtained transfer image becomes substantially the same.
[0096]
In what mm is the distance between the photosensitive film 4 and the LCD element 3 in the absence of the transparent member 10, an image as sharp as an image obtained using the transparent member 10 having a predetermined thickness is obtained. Is evaluated, the results shown in Table 2 below are obtained. The transparent member 10 has a thickness approximately equal to the distance between the photosensitive film 4 and the LCD element 3.
[0097]
[Table 2]

[0098]
As can be seen from Table 2 above, the clearness of the image when the transparent member 10 is provided is such that the distance between the photosensitive film 4 and the LCD element 3 is reduced to ½ to 比 べ compared to the case where the transparent member 10 is not provided. It is almost the same as the image obtained when Further, a distance d between the photosensitive film 4 and the LCD element 3 is set to 3 mm, and a glass plate (refractive index n = 1.48) having a thickness of 2.8 mm and 1.5 mm is inserted as the transparent member 10, and the same as described above. When the transfer test is performed (the distance between the upper surface of the glass plate and the photosensitive film 4 is 0.2 mm and 1.5 mm, respectively), the clearness of the image when the thickness of the glass plate is 2.8 mm is The image quality is the same as that when the photosensitive film 4 and the LCD element 3 are merely 1 to 2 mm apart. Further, the clearness of the image when the thickness of the glass plate is 1.5 mm is comparable to the image quality when the photosensitive film 4 and the LCD element 3 are simply separated by 2 mm.
[0099]
Next, a third embodiment of the present invention will be described. FIG. 15 is a schematic sectional view showing a transfer apparatus according to the third embodiment of the present invention, FIG. 16A is a schematic view showing the operation of the transfer apparatus of the present embodiment, and FIG. 15B is a transfer view of the present embodiment. It is a schematic diagram which shows the modification of operation | movement of an apparatus. In the present embodiment, the same components as those in the second embodiment shown in FIGS. 11 to 14 are denoted by the same reference numerals, and detailed description thereof is omitted.
The present embodiment is different from the second embodiment in the light source and the moving means, and other configurations are the same as those in the second embodiment. That is, the transfer device according to the second embodiment generates linear substantially parallel light using the backlight unit 1 which is a planar light source and the perforated plate 20 which is linear light generating means. . However, in this embodiment, as shown in FIG. 15, for example, a straight tube cold cathode tube is used as a rod-shaped lamp that is a linear light source 11 a.
[0100]
In the transfer device of this embodiment shown in FIGS. 15, 16A and 16B, the linear light source 11a and the perforated plate 20 are combined and integrated as a linear substantially parallel light generation unit 1a. Unlike the transfer apparatus of the second embodiment, the light shielding masks 7a and 7b are not provided.
[0101]
In the transfer apparatus shown in FIG. 15, the linear substantially parallel light generation unit 1 a includes a linear light source 11 a composed of a rod-shaped lamp (for example, a straight tube cold cathode tube), and a columnar perforated plate 20 as a linear light generating means. Are combined into an integrated unit, which has a function of causing light from the linear light source 11a to enter the transmissive LCD element 3 at right angles as linear substantially parallel light. Linear light having a width in a direction (longitudinal direction) orthogonal to the relative movement direction (scanning direction of the display screen of the transmissive LCD element 3) between the linear substantially parallel light generation unit 1a and the transmissive LCD element 3 is generated. It is to be ejected.
[0102]
As shown in FIG. 16A, in the present embodiment, the linear substantially parallel light generation unit 1a side moves with respect to the fixed transmissive LCD element 3. Further, as a modification of the present embodiment, as shown in FIG. 16B, the LCD element 3 side integrated with the photosensitive film 4 moves with respect to the fixed linear substantially parallel light generation unit 1a. It may be a thing. Thus, this modification requires a space for two sheets of the photosensitive film 4. For this reason, in the embodiment shown in FIG. 16A, the apparatus configuration can be made more compact, and therefore it is preferable that the linear substantially parallel light generation unit 1a side moves.
[0103]
The linear light source 11a used in the linear substantially parallel light generation unit 1a has a rod-shaped lamp such as a cold cathode ray tube and a reflector such as a diffusion film or a reflector. However, the present embodiment is not limited to this, and any device may be used as long as band-like light is obtained. For example, a rod-shaped light source, an elongated organic EL A panel or inorganic EL panel may be combined to form a strip-shaped slit light using a light source having a predetermined length and a slit plate. Alternatively, LEDs or the like may be arranged in a row to obtain a row of point light. In the latter case, it is preferable to align the positions of the LED and the through hole 22 of the porous plate 20.
[0104]
In this embodiment, the linear light generating means used in the linear substantially parallel light generation unit 1a can use the porous plates 20 and 20a shown in FIGS. 13 (a) and (b). Anything applicable to the transfer apparatus of the second embodiment shown in FIG. 11 is applicable.
[0105]
Further, in the present embodiment, as shown in FIG. 15, the linear substantially parallel light generation unit 1 a itself in which the linear light source 1 and the perforated plate 20 are integrated is attached to the endless belt 8 b of the moving means 8. The linear light generating means (perforated plate 20) is attached to the endless belt 8b of the moving means 8. Unlike the case of the second embodiment shown in FIG. Needless to say, the function and action of the light-emitting means (perforated plate) are the same. In the transfer apparatus of this embodiment shown in FIG. 15, linear substantially parallel light generation is performed by the movement of the linear substantially parallel light generation unit 1a by the moving means 8, as in the transfer apparatus of the second embodiment shown in FIG. The linear light from the unit 1a is sequentially irradiated onto the LCD element 3, and the image displayed on the LCD element 3 is illuminated through the transparent member 10 by scanning exposure. Thereby, even if the diffusion angle of the substantially parallel light is somewhat large, the image can be transferred to the photosensitive film 4 with substantially the same size as the image displayed on the LCD element 3.
In the transfer apparatus according to the present embodiment shown in FIG. 15, the size of the light source can be reduced as compared with the transfer apparatus according to the second embodiment shown in FIG.
[0106]
FIG. 17 is a schematic view showing another modification of the transfer apparatus according to the third embodiment. In FIG. 17, only the linear substantially parallel light generation unit 1a, the photosensitive film 4, the transparent member 10, and the LCD element 3 are shown, and other configurations are not shown. In this modification, the linear substantially parallel light generation unit 1a is arranged so that the direction A in which the linear substantially parallel light generation unit 1a moves and the axial direction of the through hole 22 are parallel to each other. A mirror 24 is arranged at an angle of 45 ° with respect to the direction A so that light emitted from the porous plate 20 is incident on the LCD element 3 on the end face on the emission side of the porous plate 20. If it is the structure of this modification, while being able to acquire the effect similar to 3rd Embodiment, it can further reduce in size rather than the thing of 3rd Embodiment.
[0107]
In any of the above-described embodiments, by providing the transparent member 10, an image with excellent image quality can be obtained even when the distance between the LCD element 3 and the photosensitive film 4 is increased. For this reason, the restriction | limiting of the shape of a film case is eased. Further, although the porous plate is used as the substantially parallel light generating element, the invention is not limited to this, and for example, a selfoc lens may be used. Also in the second and third embodiments, the transparent members 10c and 10d shown in the first and second modifications of the first embodiment can be applied to the transparent member 10. Also in the second and third embodiments, the image area (not shown) of the photosensitive film 4 and the image area (not shown) of the LCD element 3 can be the same as those in the first embodiment. Needless to say, it can be done.
[0108]
【The invention's effect】
As described above in detail, according to the present invention, the refractive index is 1 between the image display surface of an image display device such as an LCD element and the recording surface of a photosensitive recording medium such as a photosensitive film. Big The thickness is constant Transparent A porous plate provided with a flat plate and further having a plurality of through holes formed between the light source and the image display device Therefore, it is possible to realize a transfer device that can achieve a reduction in size, weight, power consumption, and cost with a simple configuration.
The effect can be further enhanced by adding the above-described additional conditions to the basic configuration.
[0109]
In addition, according to the present invention, it is possible to use a liquid crystal display having a normal pixel density to a liquid crystal display having a high-definition screen having a high pixel density. It is possible to obtain a transfer image having a desired sharpness up to a clear transfer image.
[Brief description of the drawings]
FIG. 1 is a schematic sectional side view showing a transfer apparatus according to a first embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view showing a main part of the transfer apparatus according to the first embodiment of the present invention.
3A is a front view showing a perforated plate used in the transfer device of the present embodiment, and FIG. 3B is a front view showing a first modification of the perforated plate used in the transfer device of the present embodiment. FIG. 4C is a front view showing a second modification of the perforated plate used in the transfer apparatus of this embodiment.
FIG. 4 is a cross-sectional view showing the structure of a transmissive liquid crystal display element used in the transfer apparatus of the present embodiment.
FIG. 5 is a perspective view showing an example of the structure of a film pack 5 used in the transfer device of the present embodiment.
FIG. 6 is a schematic cross-sectional view showing a first modification of the transfer apparatus according to the first embodiment.
FIG. 7 is a schematic cross-sectional view showing a second modification of the transfer apparatus according to the first embodiment.
FIG. 8 is a perspective view showing a transparent member used in a transfer device according to a second modified example.
FIG. 9 is a schematic diagram for explaining the effect of the transfer device according to the embodiment of the invention.
FIG. 10 is a schematic diagram showing a transfer device according to an embodiment of the present invention in which a transparent member is not provided.
FIG. 11 is a schematic cross-sectional view showing a transfer apparatus according to a second embodiment of the present invention.
FIG. 12 is a schematic cross-sectional view showing a main part of a transfer apparatus according to a second embodiment of the present invention.
13A is a perspective view showing a perforated plate used in the transfer apparatus according to the second embodiment of the present invention, and FIG. 13B is a perforation used in the transfer apparatus according to the second embodiment of the present invention. It is typical sectional drawing which shows the modification of a board.
FIGS. 14A to 14D are front views showing the arrangement of through holes of a perforated plate used in the transfer apparatus according to the second embodiment.
FIG. 15 is a schematic cross-sectional view showing a transfer apparatus according to a third embodiment of the present invention.
FIG. 16A is a schematic diagram illustrating an operation of the transfer device of the present embodiment, and FIG. 16B is a schematic diagram illustrating a modification of the operation of the transfer device of the present embodiment.
FIG. 17 is a schematic diagram showing another modification of the third embodiment.
18A is a side view showing a printing apparatus of prior art 2, and FIG. 18B is an enlarged view of part D in FIG. 18A.
FIG. 19 is a perspective view showing a printing apparatus according to another embodiment of Prior Art 2.
[Explanation of symbols]
1 Backlight unit
2,20 perforated plate
21, 22 Through hole
3 LCD element
31, 37 Polarizing plate
32, 36 substrates
33, 35 electrodes
34 Liquid crystal layer
4 Photosensitive film (instant photographic film)
5 Film pack
51 film case
52 Notch
53 Exit for exposed film
54 opening
6 Body case
61 Exposed film delivery and processing liquid developing roller pair
62 Exit
10 Transparent member
24 mirror

Claims (3)

A light source, a transmissive image display device having a structure in which a liquid crystal layer is sandwiched from both sides by a substrate, and a photosensitive recording medium, the image display surface of the image display device and the recording surface of the photosensitive recording medium facing each other A transfer device that is arranged in series along the light traveling direction of the light source and transfers the display image passed from the transmissive image display device to the recording surface of the photosensitive recording medium,
The image display surface of the transmissive image display device and the recording surface of the photosensitive recording medium are arranged apart from each other, and the image display of a gap between the transmissive image display device and the photosensitive recording medium is performed. A transparent flat plate having a refractive index larger than 1 and having a constant thickness in a region corresponding to the image display surface is provided at a position matching the surface, and a plurality of penetrations are provided between the light source and the image display device. A transfer device comprising a perforated plate in which holes are formed . The image display device displays an image using RGB dots,
The transfer device according to claim 1, wherein RGB dots of the display image displayed on the image display surface of the image display device are transferred to the recording surface of the photosensitive recording medium. 3. The transparent flat plate has a recess formed on a surface of the photosensitive recording medium facing the recording surface, and the transparent flat plate and the photosensitive recording medium are in contact with each other at an outer edge of an image area. Transfer device.

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