JP2022117491A - タッチデバイス、その駆動方法、およびタッチシステム - Google Patents
タッチデバイス、その駆動方法、およびタッチシステム Download PDFInfo
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Abstract
Description
Claims (22)
- 共振回路を含むスタイラスの位置を検出するタッチデバイスであって、
表示パネルと、
前記表示パネルの上に位置するウィンドウと、
前記表示パネルと前記ウィンドウとの間の複数の電極と、
前記複数の電極から感知信号を受信して前記ウィンドウに近接したスタイラスの位置を決めるタッチコントローラーと、を含み、
前記複数の電極は、前記共振回路によって前記複数の電極に誘導された電流の方向が互いに逆である電極を含む、タッチデバイス。 - 前記複数の電極の一部は、タッチ領域に位置し、
前記タッチデバイスは、
前記タッチ領域の周縁に位置し、前記複数の電極に対応して連結されている複数のトレースをさらに含み、
前記複数のトレースは、前記共振回路によって前記複数のトレースに誘導された電流の方向が互いに逆であるトレースを含む、請求項1に記載のタッチデバイス。 - 前記複数の電極には、対応して連結されたトレースと同じ方向の電流が誘導される、請求項2に記載のタッチデバイス。
- 前記複数の電極には、対応して連結されたトレースと異なる方向の電流が誘導される、請求項2に記載のタッチデバイス。
- 前記複数の電極は、第1方向に延長された複数の第1電極を含み、
前記複数のトレースは、前記第1方向と交差する第2方向に延長されており、前記複数の第1電極の一部の第1電極の一端に連結された第1トレースと、前記複数の第1電極の他の一部の第1電極の他端に連結された第2トレースとを含む、請求項2に記載のタッチデバイス。 - 前記タッチコントローラーは、前記誘導された電流の方向が互いに逆である電極間を前記スタイラスの位置として決定する、請求項1に記載のタッチデバイス。
- 前記タッチコントローラーは、前記誘導された電流の大きさの差が最大である電極間を前記スタイラスの位置として決定する、請求項1に記載のタッチデバイス。
- 前記複数の電極と同一層に形成された複数のダミー電極および前記複数のダミー電極を互いに連結する複数のブリッジを含むアンテナをさらに含み、
前記アンテナが前記共振回路を共振させる電磁気信号を出力するように、前記タッチコントローラーは、前記アンテナに駆動信号を印加する、請求項1に記載のタッチデバイス。 - 前記複数の電極それぞれは、2つの信号入力端を含み、
前記複数の電極それぞれが前記共振回路を共振させる電磁気信号を出力するように、前記タッチコントローラーは、前記2つの信号入力端のうちの一方は接地し、他方は駆動信号を印加する、請求項1に記載のタッチデバイス。 - 前記複数の電極それぞれは、2つの信号入力端を含み、
前記複数の電極それぞれが前記共振回路を共振させる電磁気信号を出力するように、前記タッチコントローラーは、前記2つの信号入力端に互いに逆位相の駆動信号を印加する、請求項1に記載のタッチデバイス。 - 前記複数の電極と異なる層に形成される磁場遮蔽層をさらに含む、請求項1に記載のタッチデバイス。
- 前記表示パネルは、フォールディング軸に沿ってフォールディングされるフォールディング領域と前記フォールディング領域によって離隔されている非フォールディング領域とを有し、
前記磁場遮蔽層は、前記フォールディング領域および前記非フォールディング領域に全て対応して位置する、請求項11に記載のタッチデバイス。 - 前記表示パネルは、フォールディング軸に沿ってフォールディングされるフォールディング領域と前記フォールディング領域によって離隔されている非フォールディング領域とを有し、
前記磁場遮蔽層は、前記非フォールディング領域に対応して離隔して位置する、請求項11に記載のタッチデバイス。 - 前記複数の電極は、メタルメッシュ(metal mesh)から形成される、請求項1に記載のタッチデバイス。
- 共振回路を含むスタイラスの位置を検出するタッチデバイスの駆動方法であって、
複数の電極に駆動信号を出力する段階と、
前記複数の電極から感知信号を受信する段階-前記感知信号は、前記共振回路によって前記複数の電極に互いに反対方向に誘導された電流を含む-と、
前記感知信号から前記スタイラスの位置を決める段階と、を含む、タッチデバイスの駆動方法。 - 前記複数の電極の一部は、タッチ領域に位置し、
前記タッチデバイスは、前記タッチ領域の周縁に位置し、前記複数の電極に対応して連結されている複数のトレースをさらに含み、
前記感知信号は、前記共振回路によって前記複数のトレースに互いに反対方向に誘導される電流を含む、請求項15に記載のタッチデバイスの駆動方法。 - 前記複数の電極には、対応して連結されたトレースと同じ方向の電流が誘導される、請求項16に記載のタッチデバイスの駆動方法。
- 前記複数の電極には、対応して連結されたトレースと異なる方向の電流が誘導される、請求項16に記載のタッチデバイスの駆動方法。
- 前記スタイラスの位置を決める段階は、
前記誘導された電流の方向が互いに逆である電極間を前記スタイラスの位置として決定する段階を含む、請求項15に記載のタッチデバイスの駆動方法。 - 前記スタイラスの位置を決める段階は、
前記誘導された電流の大きさの差が最大である電極間を前記スタイラスの位置として決定する段階を含む、請求項15に記載のタッチデバイスの駆動方法。 - 共振回路を含むスタイラスと、
複数の電極から感知信号を受信して前記スタイラスの位置を決めるタッチセンサーと、を含み、
前記複数の電極は、前記共振回路によって前記複数の電極に誘導された電流の方向が互いに逆である電極を含む、タッチシステム。 - 前記複数の電極の一部はタッチ領域に位置し、
前記タッチセンサーは、前記タッチ領域の周縁に位置し、前記複数の電極に対応して連結されている複数のトレースをさらに含み、
前記複数のトレースは、前記共振回路によって前記複数のトレースに誘導された電流の方向が互いに逆であるトレースを含む、請求項21に記載のタッチシステム。
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