JP2021032934A - フレキシブル配線基板、電気光学装置および電子機器 - Google Patents
フレキシブル配線基板、電気光学装置および電子機器 Download PDFInfo
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Abstract
【解決手段】フレキシブル配線基板3は可撓性を有する主基板9と、主基板9上に配置される主配線10と、主配線10を覆う第2保護シート17と、第2保護シート17から露出した主配線10の一部を覆い第2保護シート17より薄い絶縁部材18と、を備える。
【選択図】図2
Description
本実施形態では、フレキシブル配線基板が配置された電気光学装置の特徴的な例について、図に従って説明する。第1の実施形態にかかわる電気光学装置について図1〜図2に従って説明する。図1は、フレキシブル配線基板が配置された電気光学装置の構造を示す模式平面図である。図2は、フレキシブル配線基板が配置された電気光学装置の構造を示す模式側断面図である。
フレキシブル配線基板が配置された電気光学装置の一実施形態について図3のフレキシブル配線基板が配置された電気光学装置の構造を示す模式側断面図を用いて説明する。本実施形態が第1の実施形態と異なるところは、図2に示した絶縁部材18の形状が異なる点にある。尚、第1の実施形態と同じ点については説明を省略する。
フレキシブル配線基板が配置された電気光学装置の一実施形態について図4及び図5を用いて説明する。図4は、フレキシブル配線基板が配置された電気光学装置の構造を示す模式側断面図である。図5は、フレキシブル配線基板が配置された電気光学装置の構造を示す模式平面図である。本実施形態が第1の実施形態と異なるところは、電気光学装置が液晶表示装置の1種類であるLCOS(Liquid Crystal On Silicon)を備える点にある。尚、第1の実施形態と同じ点については説明を省略する。
電気光学装置が配置された電子機器であるHMD(Head Mounted Display)の一実施形態について図6を用いて説明する。図6は、HMDの光学系の構造を示す模式平面図である。図6には説明のため使用者の左眼及び右眼を図示する。
前記第1の実施形態では、絶縁部材18は感光性樹脂材料を含んでいた。絶縁部材18は感光性樹脂材料の代わりに熱硬化性の樹脂材料を含んでもよい。光51を当て難いときにも絶縁部材18を加熱して硬化させることができる。
前記第1の実施形態では絶縁部材18はソルダーレジストを含んでいた。絶縁部材18はソルダーレジストを含まない樹脂材料でも良い。塗布し易い樹脂材料を用いても良い。
前記第1の実施形態では第2保護シート17はポリイミドを含む樹脂フィルムで形成されていた。第2保護シート17はポリイミド以外を含む樹脂フィルムで形成されても良い。第2保護シート17は耐熱性を要求されないので、入手し易い樹脂材料を用いても良い。
前記第4の実施形態では、電気光学装置66及び電気光学装置75に第1の実施形態における電気光学装置1を用いた。電気光学装置66及び電気光学装置75に第2の実施形態における電気光学装置25を用いても良い。電気光学装置66及び電気光学装置75に第3の実施形態における電気光学装置30と光源とを組み合わせて用いても良い。電気光学装置30はフレキシブル配線基板32が液晶パネル用基板34の厚み方向に曲がるときにも、第2保護シート17が液晶パネル用基板34と重なってしまい、接続不良となることを防止できる。従って、HMD60はフレキシブル配線基板32が液晶パネル用基板34の厚み方向に曲がるときにも、接続不良となることを防止できる電気光学装置30を備えた機器とすることができる。
前記第4の実施形態では、電気光学装置1を備える電子機器の例としてHMD60を示した。他の電子機器に電気光学装置1、電気光学装置25または電気光学装置30を用いても良い。例えば、投射型表示装置、投射型のHUD(Head−Up Display)、携帯電話機、情報携帯端末、PDA(PersonalDigitalAssistants)、デジタルカメラ、液晶テレビ、カーナビゲーション装置、テレビ電話等に電気光学装置1、電気光学装置25または電気光学装置30を用いても良い。このときにも、フレキシブル配線基板3、フレキシブル配線基板26またはフレキシブル配線基板32が厚み方向に曲がるときにも、接続不良となることを防止できる。
Claims (10)
- 可撓性を有する基材と、
前記基材上に配置される配線と、
前記配線を覆う保護部材と、
前記保護部材から露出した前記配線の一部を覆い前記保護部材より薄い絶縁部材と、を備えることを特徴とするフレキシブル配線基板。 - 請求項1に記載のフレキシブル配線基板であって、
前記基材の平面視において前記絶縁部材は前記保護部材と一部が重なることを特徴とするフレキシブル配線基板。 - 請求項2に記載のフレキシブル配線基板であって、
前記絶縁部材は前記保護部材の側面を覆うことを特徴とするフレキシブル配線基板。 - 請求項1〜3のいずれか一項に記載のフレキシブル配線基板であって、
前記絶縁部材は感光性樹脂材料を含むことを特徴とするフレキシブル配線基板。 - 請求項1〜3のいずれか一項に記載のフレキシブル配線基板であって、
前記絶縁部材はソルダーレジストを含むことを特徴とするフレキシブル配線基板。 - 請求項1〜5のいずれか一項に記載のフレキシブル配線基板であって、
複数の端子を備え、前記絶縁部材は前記複数の端子の配列方向に沿って設けられていることを特徴とするフレキシブル配線基板。 - 請求項1〜6のいずれか一項に記載のフレキシブル配線基板であって、
前記保護部材はポリイミドを含むことを特徴とするフレキシブル配線基板。 - 半導体基板と、前記半導体基板の一辺に沿って設けられたパネル側端子と、を有する電気光学パネルと、
請求項1〜7のいずれか一項に記載のフレキシブル配線基板と、を備え、
前記フレキシブル配線基板の配線は前記パネル側端子と電気的に接続されることを特徴とする電気光学装置。 - 請求項8に記載の電気光学装置であって、
前記フレキシブル配線基板が備える絶縁部材は前記半導体基板の側面の角部と接することを特徴とする電気光学装置。 - 請求項8〜9に記載の電気光学装置を備えることを特徴とする電子機器。
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