JP2004042510A

JP2004042510A - On-board perspective visible display panel member and its manufacturing method

Info

Publication number: JP2004042510A
Application number: JP2002204969A
Authority: JP
Inventors: Akiyuki Iimuro; 飯室　暁之
Original assignee: Nissha Printing Co Ltd
Current assignee: Nissha Printing Co Ltd
Priority date: 2002-07-15
Filing date: 2002-07-15
Publication date: 2004-02-12
Anticipated expiration: 2022-07-15
Also published as: JP4262452B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-board perspective visible display panel member not scattering broken pieces of a resin member even if the panel member is damaged and also excellent in a yield when the panel member is obtained, and its manufacturing method. <P>SOLUTION: At least a base sheet with a thickness of 25-250 μm and a glare-free protective layer with a visible light transmissivity of 65-100%, a haze of 0.5-60% and a thickness of 5-20 μm are laminated on a transparent resin member and a ratio of the thickness of the glare-free protective layer and that of the base sheet is 0.02-0.8 and a ratio of the sum of the thickness of the base sheet and that of the glare-free protective layer and the thickness of the resin member is 0.005-0.125. Therefore, even if the panel member is damaged, the broken pieces of the resin member are not scattered. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、自動車に搭載される装置の前面パネルなどとして利用される車載透過視認表示パネル部材とその製造方法に関するものである。
【０００２】
【従来の技術】
従来、自動車等に搭載されるパネル部材としては、防眩効果を有する保護層をコーティングした樹脂シートを樹脂部材表面にインサート成形したものがあった。インサート成形とは、基体シート上に保護層などを形成した加飾シートを射出成形用金型内に供給し、立体形状の成形品を成形するのと同時に加飾シートを成形品に一体的に接着して装飾を行う方法である。
【０００３】
このような構成のパネル部材は、防眩効果を備えるとともに、衝突時などに衝撃が加わってパネル部材が破損した場合に、樹脂部材の破片が樹脂シートに保持され、破片の飛散による危険を防止することができる。
【０００４】
【発明が解決しようとする課題】
しかし、従来のパネル部材では、樹脂シートの強度が不足したために衝撃時に破片が飛散してしまい、破片の飛散を完全に防ぐことが困難であるという問題点があった。
【０００５】
また、樹脂シートにしわやカールが生じたり、パネル部材に湾曲が生じたりするなど、工程上の問題点もあり、パネル部材を得る際の歩留まりが悪いという問題点があった。
【０００６】
したがって、この発明は、上記のような問題点を解消し、パネル部材が破損したとしても樹脂部材の破片が飛散せず、パネル部材を得る際の歩留まりにも優れた車載透過視認表示パネル部材とその製造方法を提供することを目的とする。
【０００７】
【課題を解決するための手段】
この発明の車載透過視認表示パネル部材とその製造方法は、以上の目的を達成するために、つぎのように構成した。
【０００８】
つまり、この発明の車載透過視認表示パネル部材は、透明な樹脂部材上に、厚さ２５〜２５０μｍの基体シートと、可視光線透過率６５〜１００％、ヘイズ０．５〜６０％、厚さ５〜２０μｍの防眩保護層とが少なくとも積層され、防眩保護層の厚さと基体シートの厚さとの比率が０．０２〜０．８であり、基体シートと防眩保護層の厚さの和と樹脂部材の厚さとの比率が０．００５〜０．１２５であるように構成した。
【０００９】
また、透明な樹脂部材上に、加飾層と、厚さ２５〜２５０μｍの基体シートと、可視光線透過率６５〜１００％、ヘイズ０．５〜６０％、厚さ５〜２０μｍの防眩保護層とが少なくとも積層され、防眩保護層の厚さと基体シートの厚さとの比率が０．０２〜０．８であり、加飾層と基体シートと防眩保護層の厚さの和と樹脂部材の厚さとの比率が０．００５〜０．１２５であるように構成してもよい。
【００１０】
また、上記の発明において、防眩保護層が、保護機能樹脂と樹脂微粒子とからなり、樹脂微粒子が保護機能樹脂に対し１〜３０重量％配合されているように構成してもよい。
【００１１】
また、この発明の車載透過視認表示パネル部材の製造方法は、厚さ２５〜２５０μｍの基体シート上に可視光線透過率６５〜１００％、ヘイズ０．５〜６０％、厚さ５〜２０μｍの防眩保護層が少なくとも積層された防眩保護シートを、パネル部材を形成することができるキャビティを構成する金型内に設置し、金型内に透明な溶融樹脂を射出し、防眩保護シートと樹脂部材とを一体化させ、防眩保護層の厚さと基体シートの厚さとの比率が０．０２〜０．８であり、基体シートと防眩保護層の厚さの和と樹脂部材の厚さとの比率が０．００５〜０．１２５である成形品を得るように構成した。
【００１２】
また、厚さ２５〜２５０μｍの基体シート上に加飾層と可視光線透過率６５〜１００％、ヘイズ０．５〜６０％、厚さ５〜２０μｍの防眩保護層とが少なくとも積層された防眩保護シートを、パネル部材を形成することができるキャビティを構成する金型内に設置し、金型内に透明な溶融樹脂を射出し、防眩保護シートと樹脂部材とを一体化させ、防眩保護層の厚さと基体シートの厚さとの比率が０．０２〜０．８であり、基体シートと防眩保護層の厚さの和と樹脂部材の厚さとの比率が０．００５〜０．１２５である成形品を得るように構成した。
【００１３】
【発明の実施の形態】
図面を参照しながらこの発明の実施の形態について詳しく説明する。
【００１４】
図１は、この発明の車載透過視認表示パネル部材の一実施例を示す断面図である。図２〜３は、この発明の車載透過視認表示パネル部材の製造方法に用いる防眩保護シートの一実施例を示す断面図である。図４〜５は、この発明の車載透過視認表示パネル部材の製造方法の一工程を示す断面図である。図中、１は車載透過視認表示パネル部材、２は防眩保護層、３は基体シート、４は樹脂部材、５は防眩保護シート、６は図柄層、７は接着層、８は金型である。
【００１５】
この発明の車載透過視認表示パネル部材１は、透明な樹脂部材４上に、厚さ２５〜２５０μｍの基体シート３と、可視光線透過率６５〜１００％、ヘイズ０．５〜６０％、厚さ５〜２０μｍの防眩保護層２とが少なくとも積層され、防眩保護層２の厚さと基体シート３の厚さとの比率が０．０２〜０．８であり、基体シート３と防眩保護層２の厚さの和と樹脂部材４の厚さとの比率が０．００５〜０．１２５としたものである（図１参照）。
【００１６】
この発明の車載透過視認表示パネル部材１の製造方法は、厚さ２５〜２５０μｍの基体シート３上に可視光線透過率６５〜１００％、ヘイズ０．５〜６０％、厚さ５〜２０μｍの防眩保護層２が少なくとも積層された防眩保護シート５を、パネル部材を形成することができるキャビティを構成する金型８内に設置し、金型８内に透明な溶融樹脂を射出し、防眩保護シート５と樹脂部材４とを一体化させ、防眩保護層２の厚さと基体シート３の厚さとの比率が０．０２〜０．８であり、基体シート３と防眩保護層２の厚さの和と樹脂部材４の厚さとの比率が０．００５〜０．１２５である成形品を得る方法である。
【００１７】
防眩保護シート５は、基体シート３上に防眩保護層２が少なくとも積層されたものである（図２〜３参照）。
【００１８】
基体シート３の材質としては、ポリカーボネイト系樹脂、ポリアミド系樹脂、ポリイミド系樹脂、ポリエステル系樹脂、アクリル系樹脂、オレフィン系樹脂、ウレタン系樹脂などの樹脂から選択される単層フィルムや、これらの樹脂から選択された２種以上の樹脂による積層フィルムまたは共重合フィルムなどを使用することができる。
【００１９】
基体シート３の厚さは、２５〜２５０μｍとする。基体シート３の厚さが２５μｍに満たないと、破損時の破片の飛散を防止する効果が期待できない。２５０μｍを超えると、基体シート３の透明度が低下し、車載透過視認表示パネル部材１の外観に影響を与える。また、破片飛散の防止という目的を考えても過剰であり、コストアップにもつながる。
【００２０】
また、基体シート３は、６０度光沢度が９０％以下であるのが好ましい。６０度光沢度とは、外部から画面に入射する光の反射によって定義される値である。６０度光沢度が９０％を超えると、反射光の眩しさが増大し、十分な防眩機能を発揮できないおそれがある。
【００２１】
防眩保護層２は、基体シート３の上に、グラビア印刷法、スクリーン印刷法などを用いて形成するとよい。
【００２２】
防眩保護層２の材質として、ポリウレタン樹脂と非結晶性の含フッ素重合体からなるものや、アクリル系紫外線硬化型樹脂やエポキシ系紫外線硬化型樹脂などを用いてもよい。また、電離放射線硬化型樹脂を用いてもよい。
【００２３】
防眩保護層２は、可視光線透過率６５〜１００％の範囲で形成する。可視光線透過率が６５％に満たないと、基体シート３が白濁して絵柄層の色味を変化させ、所望の色味を忠実に再現することができない。
【００２４】
また、防眩保護層２は、ヘイズ０．５〜６０％の範囲で形成する。ヘイズが０．５％に満たないと、基体シート３の持つヘイズが影響し、加飾シート全体でのヘイズが精密にコントロールできなくなる。また、６０％を超えると、防眩保護層２が曇り、所望の色味や柄を忠実に再現することができない。
【００２５】
また、防眩保護層２は、厚さ５〜２０μｍの範囲で形成する。防眩保護層２の厚さが５μｍに満たないと、十分な耐傷性を確保できない。また２０μｍを超えると、防眩保護層２の形成時において防眩保護層２の厚さの管理が難しくなり、むらなどが発生して外観不良の原因となる。
【００２６】
防眩保護層２は、基体シート３との厚さの比率が０．０２〜０．８の範囲に形成する。厚さの比率が０．０２に満たないと、防眩保護層２が基体シート３に対して薄くなりすぎるため、防眩保護層２を形成しない場合と比較して、シートの耐衝撃性がほとんど向上しない。また、厚さの比率が０．８を超えると、基体シート３との熱膨張率の差により、シートにしわやカールが発生しやすくなり、車載透過視認表示パネル部材１の歩留まりが低下する。
【００２７】
また、防眩保護層２は、表面強度を向上させるため、１〜３０重量％の割合で樹脂微粒子を含むように構成してもよい。樹脂微粒子の割合が１重量％に満たないと、樹脂微粒子を添加した効果がほとんど現れない恐れがある。また、３０重量％を超えると、防眩保護層２中で樹脂微粒子が凝集し、表面に凹凸が形成される恐れがある。
【００２８】
また、防眩保護シート５には、図柄層６や接着層７などの加飾層を必要に応じて形成してもよい（図３参照）。
【００２９】
図柄層６は、文字・記号・絵柄などを表現するために形成する層である。また、図柄層６は、隠蔽部分と光透過性部分ができるようにしてもよい。このような図柄層６を形成することにより、裏面に光源を配置した場合、文字・記号・絵柄などが光るように構成することができる。
【００３０】
図柄層６は、通常、印刷層として形成する。印刷層の材質としては、ウレタン系樹脂、ビニル系樹脂、ポリアミド系樹脂、ポリエステル系樹脂、アクリル系樹脂、ポリウレタン系樹脂、ポリビニルアセタール系樹脂、ポリエステルウレタン系樹脂、セルロースエステル系樹脂、アルキド樹脂、熱可塑性エラストマーなどの樹脂、好ましくは柔軟な皮膜を作ることができる樹脂をバインダーとし、適切な色の顔料または染料を着色剤として含有する着色インキを用いるとよい。印刷層の形成方法としては、オフセット印刷法、グラビア印刷法、スクリーン印刷法などの通常の印刷法などを用いるとよい。特に、多色刷りや階調表現を行うには、オフセット印刷法やグラビア印刷法が適している。また、単色の場合には、グラビアコート法、ロールコート法、コンマコート法などのコート法を採用することもできる。印刷層は、表現したい図柄に応じて、全面的に設ける場合や部分的に設ける場合がある。また、印刷層は、単層でも複数層でもよい。
【００３１】
また、図柄層６は、金属薄膜層からなるもの、あるいは印刷層と金属薄膜層との組み合わせからなるものでもよい。金属薄膜層は、図柄層６として金属光沢を表現するためのものであり、真空蒸着法、スパッターリング法、イオンプレーティング法、鍍金法などで形成する。表現したい金属光沢色に応じて、アルミニウム、ニッケル、金、白金、クロム、鉄、銅、スズ、インジウム、銀、チタニウム、鉛、亜鉛などの金属、これらの合金または化合物を使用する。部分的な金属薄膜層を形成する場合の一例としては、金属薄膜層を必要としない部分に溶剤可溶性樹脂層を形成した後、その上に全面的に金属薄膜を形成し、溶剤洗浄を行って溶剤可溶性樹脂層と共に不要な金属薄膜を除去する方法がある。この場合によく用いる溶剤は、水または水溶液である。また、別の一例としては、全面的に金属薄膜を形成し、次に金属薄膜を残しておきたい部分にレジスト層を形成し、酸またはアルカリでエッチングを行い、レジスト層を除去する方法がある。
【００３２】
接着層７は、成形樹脂に防眩保護シート５を接着するものであり、防眩保護シート５の防眩保護層２とは反対側の面に形成する。接着層７としては、成形樹脂の素材に適した感熱性あるいは感圧性の樹脂を適宜使用する。たとえば、成形樹脂の材質がアクリル系樹脂の場合はアクリル系樹脂を用いるとよい。また、成形樹脂の材質がポリフェニレンオキシド・ポリスチレン系樹脂、ポリカーボネート系樹脂、スチレン共重合体系樹脂、ポリスチレン系ブレンド樹脂の場合は、これらの樹脂と親和性のあるアクリル系樹脂、ポリスチレン系樹脂、ポリアミド系樹脂などを使用すればよい。さらに、成形樹脂の材質がポリプロピレン樹脂の場合は、塩素化ポリオレフィン樹脂、塩素化エチレン−酢酸ビニル共重合体樹脂、環化ゴム、クマロンインデン樹脂が使用可能である。接着層７の形成方法としては、グラビアコート法、ロールコート法、コンマコート法などのコート法、グラビア印刷法、スクリーン印刷法などの印刷法がある。
【００３３】
このような構成の防眩保護シート５を用い、車載透過視認表示パネル部材１を得ることができる。
【００３４】
まず、防眩保護シート５を、金型８内に設置する（図４参照）。
【００３５】
金型８としては、パネル部材を形成することができるキャビティを構成するものを用いる。また、成形品がキャビティからスムースに離型するようにするため、キャビティ面にテフロン（登録商標）加工やサンドブラスト加工などを施してもよい。また、防眩保護シート５として長尺フィルムを用いる場合、防眩保護シート５を切り取るために、トムソン刃を仕込んでもよい。
【００３６】
防眩保護シート５を金型８内に防眩保護シート５を送り込むには、あらかじめ所望の形状に切断あるいは予備成形した枚葉の防眩保護シート５を１枚ずつ送り込んでもよいし、長尺の防眩保護シート５の必要部分を間欠的に送り込んでもよい。長尺の防眩保護シート５を使用する場合、位置決め機構を有する送り装置を使用して、防眩保護シート５と成形用金型８との見当が一致するようにするとよい。また、防眩保護シート５を間欠的に送り込む際に、防眩保護シート５の位置をセンサーで検出した後に防眩保護シート５をキャビティ型とコア型とで固定すれば、常に同じ位置で防眩保護シート５を固定することができ、位置ずれが生じないので好適である。ここで、防眩保護シート５が成形用金型８に沿いやすくするために、防眩保護シート５を加熱してもよい。加熱をするには、赤外線ヒーターやニクロムヒーターなどを防眩保護シート５の近傍に配置するとよい。
【００３７】
防眩保護シート５は、加飾シート送り装置などを使用して、金型８間に配置し、クランプなどの手段で固定する。熱源により防眩保護シート５を加熱軟化させるとともに真空吸引してキャビティ面に密着させてもよい。
【００３８】
次いで、金型８内に透明な溶融樹脂を射出し、防眩保護シート５と樹脂部材４とを一体化させる（図５参照）。
【００３９】
成形用金型８を閉じた後、溶融樹脂をゲートからキャビティ内に射出充満させ、透明樹脂部材４を形成するのと同時にその表面に防眩保護シート５を接着させる。
【００４０】
透明な成形樹脂としては、アクリル系樹脂、ポリスチレン系樹脂、ポリアクリロニトリルスチレン系樹脂、ポリアクリロニトリルブタジエンスチレン系樹脂などを用いることができる。
【００４１】
最後に、溶融樹脂の固化後、型開きすれば、防眩保護シート５と透明樹脂部材４とが一体化した車載透過視認表示パネル部材１を得ることができる。
【００４２】
また、次のようにしてインサート成形をすることができる。まず、防眩保護シート５を、パネル部材と同一形状の凹部を有する予備成形型にクランプなどの手段で固定し、次に、熱源により防眩保護シート５を加熱軟化させるとともに真空吸引して予備成形型の表面に密着させる。次いで真空吸引を解除し、予備成形型から防眩保護シート５を取り出す。このようにして、予備成形した防眩保護シート５を得ることができる。次いで、予備成形した防眩保護シート５を、金型８間に配置し、クランプなどの手段で固定する。次に、金型８を型締めし、溶融樹脂を射出して成形樹脂を成形する。
【００４３】
基体シート３と防眩保護層２の厚さの和と樹脂部材４の厚さとの比率は、０．００５〜０．１２５の範囲になるように形成する。また、防眩保護シート５上に図柄層６や接着層７などの加飾層が形成された場合は、基体シート３と防眩保護層２の厚さの和と樹脂部材４の厚さとの比率が０．００５〜０．１２５の範囲になるように形成する。上記厚さの比率が０．００５に満たないと、車載透過視認表示パネル部材１に衝撃が加わった時にパネル部材が基体シート３ごと破損し、破片飛散防止効果が期待できない。また、上記厚さの比率が０．１２５を超えると、樹脂部材４とシートの熱収縮率の差によって樹脂部材４の成形後に冷却した部材内部に発生する応力が無視できないほど大きくなり、その結果、樹脂部材４と基体シート３の密着力が低下し、衝撃時に基体シート３が剥離・破断しやすくなる。また、応力により、車載透過視認表示パネル部材１が湾曲して寸法精度を保てなくなるという問題がある。
【００４４】
透明樹脂部材４の固化後、型開きすれば、防眩保護シート５と樹脂部材４とが一体化した車載透過視認表示パネル部材１を得ることができる。
【００４５】
このようにして得た車載透過視認表示パネル部材１は、防眩保護シート５と樹脂部材４とが強固に密着するとともに剥離が生じないものであるため、パネル部材の破損時に破片が飛散することがないものである。したがって、耐衝撃性に劣るが低コストで成形性に優れる樹脂を樹脂部材４として用いることができ、樹脂部材４の選択の幅が広がり、低コスト化、生産効率の向上も図ることができる。
【００４６】
【実施例】
表１に示す各厚さのポリエステルフィルムを基体シートとし、その上に、粒径約０．１μｍのアクリル樹脂微粒子を２０重量％含むアクリル系樹脂からなるハードコート性を有する防眩保護層をスクリーン印刷法によって形成し、防眩保護シートを得た。
【００４７】
次いで、防眩保護シートを金型内部に配置し、金型を締めてアクリル系樹脂（三菱レイヨン株式会社製アクリペットＶＨ）を射出成形し、冷却させたのち金型を開いて取り出し、車載透過視認表示パネル部材を得た。
【００４８】
このようにして得た各車載透過視認表示パネル部材について、それぞれ飛散防止効果試験、車載試験、外観評価を行なった。
【００４９】
飛散防止効果試験は、次のようにして行った。すなわち、車載透過視認表示パネル部材１に嵌合する治具１３に固定された１００ｍｍ×１００ｍｍの車載透過視認表示パネル部材１に対し、直径５０ｍｍ、重量５４０ｇの鋼球１２を高さ１ｍから落下し衝突させた。鋼球１２を垂直に落下させるには、じょうご状器具１１とスタンド１４を組み合わせた試験装置を用いた（図６参照）。
【００５０】
鋼球を落下衝突させパネル部材を破損させた後に、破片が基体シートに保持され、治具からまったく飛散していない状態を可とした。
【００５１】
車載試験は、排気量１．５リットル、車両重量１０００ｋｇクラスの４ドアセダンでフルラップ衝突試験を行なう際に、車両に車載透過視認表示パネル部材を搭載し、衝突後破片が飛散したかどうかを調べた。飛散しなかった場合を可とした。
【００５２】
外観評価は成形後のパネル部材について変形やゲート飛びなどが生じなかった場合を可とした。
【００５３】
【表１】

【００５４】
なお、表１において、○は可を、×は不可をそれぞれ示す。
【００５５】
このようにして得た比較例１〜３の車載透過視認表示パネル部材は、いずれも飛散防止効果試験、車載試験、外観評価において可の結果となった。
【００５６】
また、基体シートと防眩保護層の厚さの和と樹脂部材の厚さとの比率が０．００５を下回る比較例１では、飛散防止効果試験および車載試験において破片が飛散し、飛散防止効果が不十分であった。また、上記厚さ比率が０．１２５を上回る比較例２および比較例４は、ゲート飛びが発生し、外観に問題が生じた。
【００５７】
また、防眩保護層の厚さと基体シートの厚さとの比率が０．００５を下回る比較例３では、飛散防止効果試験および車載試験において破片が飛散し、飛散防止効果が十分でなかった。また、上記比率が０．１２５を上回る比較例４では、インサート成形前にシートにしわが発生し、外観に問題が生じた。
【００５８】
また、実施例１〜３および比較例１〜４のいずれの車載透過視認表示パネル部材においても、飛散防止効果試験と車載試験の結果は一致し、先に説明した飛散防止効果試験の妥当性を確認することができた。
【００５９】
【発明の効果】
この発明は、前記した構成からなるので、次のような効果を有する。
【００６０】
この発明の車載透過視認表示パネル部材は、透明な樹脂部材上に、厚さ２５〜２５０μｍの基体シートと、可視光線透過率６５〜１００％、ヘイズ０．５〜６０％、厚さ５〜２０μｍの防眩保護層とが少なくとも積層され、防眩保護層の厚さと基体シートの厚さとの比率が０．０２〜０．８であり、基体シートと防眩保護層の厚さの和と樹脂部材の厚さとの比率が０．００５〜０．１２５であるように構成したので、パネル部材が破損したとしても樹脂部材の破片が飛散することがないものである。
【００６１】
また、この発明の車載透過視認表示パネル部材の製造方法は、厚さ２５〜２５０μｍの基体シート上に可視光線透過率６５〜１００％、ヘイズ０．５〜６０％、厚さ５〜２０μｍの防眩保護層が少なくとも積層された防眩保護シートを、パネル部材を形成することができるキャビティを構成する金型内に設置し、金型内に透明な溶融樹脂を射出し、防眩保護シートと樹脂部材とを一体化させ、防眩保護層の厚さと基体シートの厚さとの比率が０．０２〜０．８であり、基体シートと防眩保護層の厚さの和と樹脂部材の厚さとの比率が０．００５〜０．１２５である成形品を得るように構成したので、破損したとしても樹脂部材の破片が飛散しないパネル部材を歩留まりよく得ることができる。
【図面の簡単な説明】
【図１】この発明の車載透過視認表示パネル部材の一実施例を示す断面図である。
【図２】この発明の車載透過視認表示パネル部材の製造方法に用いる防眩保護シートの一実施例を示す断面図である。
【図３】この発明の車載透過視認表示パネル部材の製造方法に用いる防眩保護シートの一実施例を示す断面図である。
【図４】この発明の車載透過視認表示パネル部材の製造方法の一工程を示す断面図である。
【図５】この発明の車載透過視認表示パネル部材の製造方法の一工程を示す断面図である。
【図６】この発明の車載透過視認表示パネル部材の飛散防止効果試験を示す斜視図である。
【符号の説明】
１　車載透過視認表示パネル部材
２　防眩保護層
３　基体シート
４　樹脂部材
５　防眩保護シート
６　図柄層
７　接着層
８　金型
１１じょうご状器具
１２鋼球
１３治具
１４スタンド[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an on-vehicle transmissive display panel member used as a front panel of a device mounted on an automobile, and a method for manufacturing the same.
[0002]
[Prior art]
Conventionally, as a panel member mounted on an automobile or the like, there has been a panel member obtained by insert-molding a resin sheet coated with a protective layer having an antiglare effect on the surface of the resin member. Insert molding is a process in which a decorative sheet with a protective layer formed on a base sheet is supplied into an injection molding die to form a three-dimensional molded product and simultaneously integrate the decorative sheet into the molded product. This is a method of bonding and decorating.
[0003]
The panel member having such a configuration has an anti-glare effect, and when the panel member is damaged due to an impact at the time of a collision or the like, fragments of the resin member are held by the resin sheet, thereby preventing danger due to scattering of the fragments. can do.
[0004]
[Problems to be solved by the invention]
However, the conventional panel member has a problem that fragments are scattered at the time of impact due to insufficient strength of the resin sheet, and it is difficult to completely prevent the fragments from being scattered.
[0005]
In addition, there are problems in the process, such as wrinkling and curling of the resin sheet and curvature of the panel member, and the yield in obtaining the panel member is poor.
[0006]
Therefore, the present invention solves the above problems, and even if the panel member is broken, the fragments of the resin member do not scatter, and the in-vehicle transmissive display panel member excellent in the yield when obtaining the panel member is provided. It is an object of the present invention to provide a manufacturing method thereof.
[0007]
[Means for Solving the Problems]
The on-vehicle transmissive display panel member and the method of manufacturing the same according to the present invention are configured as follows to achieve the above object.
[0008]
That is, the on-vehicle transmissive display panel member of the present invention comprises a base sheet having a thickness of 25 to 250 μm, a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and a thickness of 5 on a transparent resin member. An anti-glare protection layer of at least 20 μm is laminated, the ratio of the thickness of the anti-glare protection layer to the thickness of the base sheet is 0.02 to 0.8, and the sum of the thicknesses of the base sheet and the anti-glare protection layer And the thickness of the resin member was configured to be 0.005 to 0.125.
[0009]
Further, a decorative layer, a base sheet having a thickness of 25 to 250 μm, a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and an antiglare protection having a thickness of 5 to 20 μm on a transparent resin member. A ratio of the thickness of the anti-glare protective layer to the thickness of the base sheet is 0.02 to 0.8, and the sum of the thicknesses of the decorative layer, the base sheet and the anti-glare protective layer and the resin You may comprise so that the ratio with the thickness of a member may be 0.005-0.125.
[0010]
Further, in the above invention, the anti-glare protective layer may be composed of a protective functional resin and resin fine particles, and the resin fine particles may be blended in an amount of 1 to 30% by weight based on the protective functional resin.
[0011]
In addition, the method for manufacturing a vehicle-mounted transparent visual display panel member of the present invention is a method for preventing a visible light transmittance of 65 to 100%, a haze of 0.5 to 60% and a thickness of 5 to 20 μm on a base sheet having a thickness of 25 to 250 μm. An anti-glare protection sheet on which at least a glare protection layer is laminated is installed in a mold that forms a cavity in which a panel member can be formed, a transparent molten resin is injected into the mold, and an anti-glare protection sheet and The ratio of the thickness of the anti-glare protective layer to the thickness of the base sheet is 0.02 to 0.8, and the sum of the thickness of the base sheet and the anti-glare protective layer and the thickness of the resin member are integrated. And a ratio of 0.005 to 0.125 was obtained.
[0012]
Further, an anti-glare protection layer in which at least a decorative layer and an anti-glare protective layer having a visible light transmittance of 65 to 100%, a haze of 0.5 to 60% and a thickness of 5 to 20 μm is laminated on a base sheet having a thickness of 25 to 250 μm. The glare protection sheet is placed in a mold that forms a cavity in which a panel member can be formed, a transparent molten resin is injected into the mold, and the anti-glare protection sheet and the resin member are integrated to prevent glare. The ratio of the thickness of the glare protection layer to the thickness of the base sheet is 0.02 to 0.8, and the ratio of the sum of the thickness of the base sheet and the antiglare protection layer to the thickness of the resin member is 0.005 to 0. .125.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
FIG. 1 is a cross-sectional view showing one embodiment of the vehicle-mounted transparent visual display panel member of the present invention. 2 to 3 are cross-sectional views showing one embodiment of an antiglare protection sheet used in the method of manufacturing a vehicle-mounted transmissive display panel member of the present invention. 4 and 5 are cross-sectional views showing one process of a method of manufacturing a vehicle-mounted transparent visual display panel member according to the present invention. In the drawing, 1 is a vehicle-mounted transmissive display panel member, 2 is an anti-glare protective layer, 3 is a base sheet, 4 is a resin member, 5 is an anti-glare protective sheet, 6 is a design layer, 7 is an adhesive layer, and 8 is a mold. It is.
[0015]
The display panel member 1 according to the present invention has a base sheet 3 having a thickness of 25 to 250 μm, a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and a thickness on a transparent resin member 4. An anti-glare protective layer 2 of at least 5 to 20 μm is laminated, and the ratio of the thickness of the anti-glare protective layer 2 to the thickness of the base sheet 3 is 0.02 to 0.8; The ratio of the sum of the thicknesses of No. 2 to the thickness of the resin member 4 is 0.005 to 0.125 (see FIG. 1).
[0016]
The method for manufacturing the vehicle-mounted transmissive display panel member 1 according to the present invention comprises a base sheet 3 having a thickness of 25 to 250 μm, a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and a thickness of 5 to 20 μm. An anti-glare protection sheet 5 on which at least the glare protection layer 2 is laminated is placed in a mold 8 constituting a cavity in which a panel member can be formed, and a transparent molten resin is injected into the mold 8 to prevent the glare. The glare protection sheet 5 and the resin member 4 are integrated, and the ratio of the thickness of the anti-glare protection layer 2 to the thickness of the base sheet 3 is 0.02 to 0.8. This is a method for obtaining a molded product in which the ratio of the sum of the thickness of the resin member 4 to the thickness of the resin member 4 is 0.005 to 0.125.
[0017]
The anti-glare protection sheet 5 is obtained by laminating at least the anti-glare protection layer 2 on the base sheet 3 (see FIGS. 2 and 3).
[0018]
Examples of the material of the base sheet 3 include a single-layer film selected from a resin such as a polycarbonate resin, a polyamide resin, a polyimide resin, a polyester resin, an acrylic resin, an olefin resin, and a urethane resin; For example, a laminated film or a copolymer film of two or more resins selected from the following can be used.
[0019]
The thickness of the base sheet 3 is 25 to 250 μm. If the thickness of the base sheet 3 is less than 25 μm, the effect of preventing scattering of fragments at the time of breakage cannot be expected. If the thickness exceeds 250 μm, the transparency of the base sheet 3 is reduced, which affects the appearance of the vehicle-mounted transparent visual display panel member 1. In addition, considering the purpose of preventing shards from scattering, it is excessive and leads to an increase in cost.
[0020]
Further, the base sheet 3 preferably has a 60 degree glossiness of 90% or less. The 60-degree gloss is a value defined by the reflection of light incident on the screen from the outside. If the 60 degree gloss exceeds 90%, the glare of the reflected light increases, and there is a possibility that a sufficient antiglare function cannot be exhibited.
[0021]
The antiglare protective layer 2 may be formed on the base sheet 3 by using a gravure printing method, a screen printing method, or the like.
[0022]
As the material of the anti-glare protective layer 2, a material made of a polyurethane resin and a non-crystalline fluorine-containing polymer, an acrylic ultraviolet curable resin, an epoxy ultraviolet curable resin, or the like may be used. Further, an ionizing radiation curable resin may be used.
[0023]
The anti-glare protective layer 2 is formed in a visible light transmittance range of 65 to 100%. If the visible light transmittance is less than 65%, the base sheet 3 becomes cloudy and changes the color of the picture layer, and the desired color cannot be faithfully reproduced.
[0024]
The anti-glare protective layer 2 is formed in a haze range of 0.5 to 60%. If the haze is less than 0.5%, the haze of the base sheet 3 affects, and the haze of the entire decorative sheet cannot be precisely controlled. On the other hand, if it exceeds 60%, the antiglare protective layer 2 becomes cloudy, and a desired color and pattern cannot be faithfully reproduced.
[0025]
Further, the antiglare protective layer 2 is formed in a thickness range of 5 to 20 μm. If the thickness of the anti-glare protective layer 2 is less than 5 μm, sufficient scratch resistance cannot be secured. On the other hand, when the thickness exceeds 20 μm, it is difficult to control the thickness of the anti-glare protective layer 2 during the formation of the anti-glare protective layer 2, which causes unevenness and the like, which causes poor appearance.
[0026]
The antiglare protective layer 2 is formed so that the thickness ratio with the base sheet 3 is in the range of 0.02 to 0.8. When the thickness ratio is less than 0.02, the anti-glare protective layer 2 becomes too thin with respect to the base sheet 3, and the impact resistance of the sheet is lower than when the anti-glare protective layer 2 is not formed. Almost no improvement. On the other hand, when the thickness ratio exceeds 0.8, the sheet tends to be wrinkled or curled due to the difference in the coefficient of thermal expansion from the base sheet 3, and the yield of the vehicle-mounted transparent visual display panel member 1 is reduced.
[0027]
Further, the anti-glare protective layer 2 may be configured to contain resin fine particles at a ratio of 1 to 30% by weight in order to improve the surface strength. If the ratio of the resin fine particles is less than 1% by weight, the effect of adding the resin fine particles may hardly appear. If the content exceeds 30% by weight, resin fine particles may aggregate in the anti-glare protective layer 2 and irregularities may be formed on the surface.
[0028]
Further, a decorative layer such as the design layer 6 and the adhesive layer 7 may be formed on the anti-glare protection sheet 5 as necessary (see FIG. 3).
[0029]
The pattern layer 6 is a layer formed to express characters, symbols, pictures, and the like. Further, the design layer 6 may have a concealing portion and a light transmitting portion. By forming such a pattern layer 6, when a light source is arranged on the back surface, it is possible to configure so that characters, symbols, patterns, etc. shine.
[0030]
The design layer 6 is usually formed as a printing layer. As the material of the printing layer, urethane resin, vinyl resin, polyamide resin, polyester resin, acrylic resin, polyurethane resin, polyvinyl acetal resin, polyester urethane resin, cellulose ester resin, alkyd resin, heat A colored ink containing a resin such as a plastic elastomer, preferably a resin capable of forming a flexible film as a binder and containing a pigment or dye of an appropriate color as a colorant may be used. As a method for forming the printing layer, a normal printing method such as an offset printing method, a gravure printing method, and a screen printing method may be used. In particular, an offset printing method or a gravure printing method is suitable for performing multicolor printing and gradation expression. In the case of a single color, a coating method such as a gravure coating method, a roll coating method, and a comma coating method may be employed. The printing layer may be provided entirely or partially depending on the design to be expressed. The printing layer may be a single layer or a plurality of layers.
[0031]
The design layer 6 may be formed of a metal thin film layer or a combination of a printing layer and a metal thin film layer. The metal thin film layer is for expressing metallic luster as the design layer 6, and is formed by a vacuum deposition method, a sputtering method, an ion plating method, a plating method, or the like. Metals such as aluminum, nickel, gold, platinum, chromium, iron, copper, tin, indium, silver, titanium, lead, and zinc, and alloys or compounds thereof are used according to the metallic luster color to be expressed. As an example of forming a partial metal thin film layer, after forming a solvent-soluble resin layer on a portion that does not require a metal thin film layer, a metal thin film is entirely formed thereon, and solvent cleaning is performed. There is a method of removing an unnecessary metal thin film together with the solvent-soluble resin layer. The solvent often used in this case is water or an aqueous solution. As another example, there is a method in which a metal thin film is formed on the entire surface, a resist layer is formed on a portion where the metal thin film is to be left, and the resist layer is removed by etching with an acid or an alkali. .
[0032]
The adhesive layer 7 is for bonding the anti-glare protection sheet 5 to the molding resin, and is formed on the surface of the anti-glare protection sheet 5 opposite to the anti-glare protection layer 2. As the adhesive layer 7, a heat-sensitive or pressure-sensitive resin suitable for the material of the molding resin is appropriately used. For example, when the material of the molding resin is an acrylic resin, an acrylic resin may be used. When the material of the molding resin is a polyphenylene oxide / polystyrene resin, a polycarbonate resin, a styrene copolymer resin, or a polystyrene blend resin, an acrylic resin, a polystyrene resin, or a polyamide resin having an affinity for these resins. A resin or the like may be used. Further, when the material of the molding resin is polypropylene resin, chlorinated polyolefin resin, chlorinated ethylene-vinyl acetate copolymer resin, cyclized rubber, and coumarone indene resin can be used. Examples of the method for forming the adhesive layer 7 include a coating method such as a gravure coating method, a roll coating method, and a comma coating method, and a printing method such as a gravure printing method and a screen printing method.
[0033]
Using the anti-glare protection sheet 5 having such a configuration, the vehicle-mounted transmissive display panel member 1 can be obtained.
[0034]
First, the anti-glare protection sheet 5 is set in the mold 8 (see FIG. 4).
[0035]
As the mold 8, one that forms a cavity in which a panel member can be formed is used. Further, in order to smoothly release the molded product from the cavity, the cavity surface may be subjected to Teflon (registered trademark) processing, sandblasting, or the like. When a long film is used as the anti-glare protection sheet 5, a Thomson blade may be provided to cut the anti-glare protection sheet 5.
[0036]
In order to feed the anti-glare protection sheet 5 into the mold 8, the anti-glare protection sheet 5 may be cut into a desired shape or preliminarily formed, and may be fed one by one. A necessary portion of the anti-glare protection sheet 5 may be intermittently fed. When the long anti-glare protection sheet 5 is used, it is preferable to use a feeding device having a positioning mechanism so that the register of the anti-glare protection sheet 5 and the registration of the molding die 8 coincide. Further, when the anti-glare protection sheet 5 is intermittently fed, if the anti-glare protection sheet 5 is fixed by the cavity type and the core type after the position of the anti-glare protection sheet 5 is detected by the sensor, the anti-glare protection sheet 5 is always prevented at the same position. This is suitable because the glare protection sheet 5 can be fixed and no positional displacement occurs. Here, the anti-glare protection sheet 5 may be heated so that the anti-glare protection sheet 5 can easily follow the molding die 8. In order to perform heating, an infrared heater, a nichrome heater, or the like may be disposed near the anti-glare protection sheet 5.
[0037]
The anti-glare protection sheet 5 is disposed between the dies 8 using a decorative sheet feeding device or the like, and is fixed by means such as a clamp. The anti-glare protection sheet 5 may be heated and softened by a heat source and may be brought into close contact with the cavity surface by vacuum suction.
[0038]
Next, a transparent molten resin is injected into the mold 8 to integrate the anti-glare protection sheet 5 and the resin member 4 (see FIG. 5).
[0039]
After the molding die 8 is closed, the molten resin is injected and filled into the cavity from the gate, and simultaneously with forming the transparent resin member 4, the anti-glare protection sheet 5 is adhered to the surface thereof.
[0040]
As the transparent molding resin, an acrylic resin, a polystyrene resin, a polyacrylonitrile styrene resin, a polyacrylonitrile butadiene styrene resin, or the like can be used.
[0041]
Finally, if the mold is opened after the molten resin is solidified, the vehicle-mounted transmissive display panel member 1 in which the anti-glare protection sheet 5 and the transparent resin member 4 are integrated can be obtained.
[0042]
In addition, insert molding can be performed as follows. First, the anti-glare protection sheet 5 is fixed to a preforming mold having a recess having the same shape as the panel member by means of a clamp or the like, and then the anti-glare protection sheet 5 is heated and softened by a heat source and vacuum-sucked. Adhere to the surface of the mold. Next, the vacuum suction is released, and the anti-glare protection sheet 5 is taken out of the preforming mold. Thus, the preformed antiglare protection sheet 5 can be obtained. Next, the preformed antiglare protection sheet 5 is placed between the molds 8 and fixed by means such as a clamp. Next, the mold 8 is clamped, and a molten resin is injected to mold a molding resin.
[0043]
The ratio of the sum of the thicknesses of the base sheet 3 and the antiglare protective layer 2 to the thickness of the resin member 4 is in the range of 0.005 to 0.125. When a decorative layer such as the design layer 6 and the adhesive layer 7 is formed on the anti-glare protection sheet 5, the sum of the thickness of the base sheet 3 and the thickness of the anti-glare protection layer 2 and the thickness of the resin member 4 are different. It is formed so that the ratio is in the range of 0.005 to 0.125. If the thickness ratio is less than 0.005, the panel member will be damaged together with the base sheet 3 when an impact is applied to the vehicle-mounted transparent visual display panel member 1, and the effect of preventing fragments from scattering cannot be expected. If the thickness ratio exceeds 0.125, the stress generated inside the member cooled after molding the resin member 4 due to the difference in the heat shrinkage between the resin member 4 and the sheet becomes so large that it cannot be ignored. In addition, the adhesion between the resin member 4 and the base sheet 3 is reduced, and the base sheet 3 is easily peeled or broken at the time of impact. Further, there is a problem that the stress causes the in-vehicle transmissive display panel member 1 to be curved and the dimensional accuracy cannot be maintained.
[0044]
If the mold is opened after the transparent resin member 4 is solidified, the vehicle-mounted transmissive display panel member 1 in which the anti-glare protection sheet 5 and the resin member 4 are integrated can be obtained.
[0045]
In the vehicle-mounted translucent display panel member 1 thus obtained, the anti-glare protection sheet 5 and the resin member 4 are firmly adhered to each other and do not peel off, so that fragments are scattered when the panel member is damaged. There is no one. Therefore, a resin that is inferior in impact resistance but low in cost and excellent in moldability can be used as the resin member 4, so that the range of choice of the resin member 4 can be widened, and cost reduction and improvement in production efficiency can be achieved.
[0046]
【Example】
A polyester film having each thickness shown in Table 1 was used as a base sheet, and a hard-coating antiglare protective layer made of an acrylic resin containing 20% by weight of an acrylic resin particle having a particle size of about 0.1 μm was screened thereon. It was formed by a printing method to obtain an antiglare protective sheet.
[0047]
Next, an anti-glare protection sheet is placed inside the mold, the mold is tightened, and an acrylic resin (Acrypet VH manufactured by Mitsubishi Rayon Co., Ltd.) is injection-molded. A visual display panel member was obtained.
[0048]
The thus-obtained translucent display panel members thus obtained were subjected to a scatter prevention effect test, an in-vehicle test, and an appearance evaluation.
[0049]
The scattering prevention effect test was performed as follows. That is, a steel ball 12 having a diameter of 50 mm and a weight of 540 g is dropped from a height of 1 m onto a 100 mm × 100 mm vehicle-mounted transparent visual display panel member 1 fixed to a jig 13 fitted to the vehicle-mounted transparent visual display panel member 1. Collided. In order to drop the steel ball 12 vertically, a test device combining the funnel-shaped instrument 11 and the stand 14 was used (see FIG. 6).
[0050]
After the steel member was dropped and collided to damage the panel member, the fragments were held on the base sheet and were not scattered at all from the jig.
[0051]
In the on-board test, when conducting a full lap collision test with a 4-door sedan with a displacement of 1.5 liters and a vehicle weight of 1000 kg class, the vehicle was equipped with a vehicle-mounted transparent visual display panel member, and it was examined whether or not fragments were scattered after the collision. . The case where it did not scatter was considered acceptable.
[0052]
The appearance was evaluated as acceptable if no deformation or gate jump occurred on the molded panel member.
[0053]
[Table 1]

[0054]
In Table 1, “○” indicates “good” and “x” indicates “impossible”.
[0055]
The vehicle-mounted transmissive display panel members of Comparative Examples 1 to 3 thus obtained all showed acceptable results in the scattering prevention effect test, the vehicle-mounted test, and the appearance evaluation.
[0056]
In Comparative Example 1 in which the ratio of the sum of the thicknesses of the base sheet and the anti-glare protective layer to the thickness of the resin member was less than 0.005, the fragments were scattered in the scatter prevention effect test and the in-vehicle test. Was not enough. In Comparative Examples 2 and 4 in which the thickness ratio was more than 0.125, gate skipping occurred and a problem occurred in appearance.
[0057]
In Comparative Example 3 in which the ratio of the thickness of the antiglare protective layer to the thickness of the base sheet was less than 0.005, fragments were scattered in the scatter prevention effect test and the vehicle-mounted test, and the scatter prevention effect was insufficient. In Comparative Example 4 in which the above ratio was greater than 0.125, wrinkles occurred in the sheet before insert molding, and a problem occurred in appearance.
[0058]
Also, in any of the on-vehicle transmissive display panel members of Examples 1 to 3 and Comparative Examples 1 to 4, the results of the anti-shattering effect test and the in-vehicle test were consistent, and the validity of the anti-shattering effect test described above was confirmed. I was able to confirm.
[0059]
【The invention's effect】
Since the present invention has the above-described configuration, it has the following effects.
[0060]
The on-vehicle transmissive display panel member according to the present invention has a base sheet having a thickness of 25 to 250 μm, a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and a thickness of 5 to 20 μm on a transparent resin member. Wherein the ratio of the thickness of the antiglare protective layer to the thickness of the base sheet is 0.02 to 0.8, and the sum of the thickness of the base sheet and the antiglare protective layer and the resin Since the ratio to the thickness of the member is configured to be 0.005 to 0.125, even if the panel member is damaged, fragments of the resin member do not scatter.
[0061]
In addition, the method for manufacturing a vehicle-mounted transparent visual display panel member of the present invention is a method for preventing a visible light transmittance of 65 to 100%, a haze of 0.5 to 60% and a thickness of 5 to 20 μm on a base sheet having a thickness of 25 to 250 μm. An anti-glare protection sheet on which at least a glare protection layer is laminated is installed in a mold that forms a cavity in which a panel member can be formed, a transparent molten resin is injected into the mold, and an anti-glare protection sheet and The ratio of the thickness of the anti-glare protective layer to the thickness of the base sheet is 0.02 to 0.8, and the sum of the thickness of the base sheet and the anti-glare protective layer and the thickness of the resin member are integrated. Since a molded product having a ratio of 0.005 to 0.125 is obtained, it is possible to obtain a panel member in which fragments of the resin member are not scattered even if damaged, with good yield.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of a vehicle-mounted transparent visual display panel member of the present invention.
FIG. 2 is a cross-sectional view showing one embodiment of an anti-glare protection sheet used in the method of manufacturing a vehicle-mounted transmissive display panel member of the present invention.
FIG. 3 is a cross-sectional view showing one embodiment of an anti-glare protective sheet used in the method of manufacturing a vehicle-mounted translucent display panel member according to the present invention.
FIG. 4 is a cross-sectional view showing one step of the method of manufacturing the vehicle-mounted transparent visual display panel member of the present invention.
FIG. 5 is a cross-sectional view showing one step of a method of manufacturing the vehicle-mounted transparent visual display panel member of the present invention.
FIG. 6 is a perspective view showing a scattering prevention effect test of the vehicle-mounted transparent visual display panel member of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 In-vehicle transmissive display panel member 2 Anti-glare protective layer 3 Base sheet 4 Resin member 5 Anti-glare protective sheet 6 Pattern layer 7 Adhesive layer 8 Die 11 Funnel-shaped tool 12 Steel ball 13 Jig 14 Stand

Claims

On a transparent resin member, at least a base sheet having a thickness of 25 to 250 μm and an antiglare protective layer having a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and a thickness of 5 to 20 μm are laminated, The ratio of the thickness of the anti-glare protective layer to the thickness of the base sheet is 0.02 to 0.8, and the ratio of the sum of the thickness of the base sheet and the anti-glare protective layer to the thickness of the resin member is 0.005 to 0.005. 0.15. A vehicle-mounted transmissive display panel member characterized by being 0.125.

On a transparent resin member, a decorative layer, a base sheet having a thickness of 25 to 250 μm, an antiglare protective layer having a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and a thickness of 5 to 20 μm. Are laminated at least, the ratio of the thickness of the antiglare protective layer to the thickness of the base sheet is 0.02 to 0.8, and the sum of the thicknesses of the decorative layer, the base sheet and the antiglare protective layer and the resin member An on-vehicle transmissive display panel member having a ratio to the thickness of 0.005 to 0.125.

The vehicle-mounted translucent display panel member according to any one of claims 1 to 2, wherein the anti-glare protective layer comprises a protective functional resin and resin fine particles, wherein the resin fine particles are blended in an amount of 1 to 30% by weight based on the protective functional resin. .

A panel member comprising a base sheet having a thickness of 25 to 250 μm and at least an antiglare protection layer having a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and a thickness of 5 to 20 μm laminated thereon. Is installed in a mold constituting a cavity capable of forming a cavity, a transparent molten resin is injected into the mold, the anti-glare protection sheet and the resin member are integrated, and the thickness of the anti-glare protection layer and the substrate A molded article whose ratio to the thickness of the sheet is 0.02 to 0.8, and whose ratio of the sum of the thicknesses of the base sheet and the anti-glare protective layer to the thickness of the resin member is 0.005 to 0.125. A method for producing a vehicle-mounted translucent display panel member, comprising:

Anti-glare protection in which at least a decorative layer and an anti-glare protective layer having a visible light transmittance of 65 to 100%, a haze of 0.5 to 60%, and a thickness of 5 to 20 μm are laminated on a base sheet having a thickness of 25 to 250 μm. The sheet is placed in a mold that forms a cavity in which a panel member can be formed, a transparent molten resin is injected into the mold, and the anti-glare protection sheet and the resin member are integrated to provide anti-glare protection. The ratio of the thickness of the layer to the thickness of the base sheet is 0.02 to 0.8, and the ratio of the sum of the thickness of the base sheet and the antiglare protective layer to the thickness of the resin member is 0.005 to 0.125. A method for producing a vehicle-mounted translucent display panel member, characterized by obtaining a molded product.