JP7585395B2 - 多色ディスプレイ - Google Patents
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Description
バックプレーンと、当該バックプレーンのバックプレーン回路と電気的に一体化された発光ダイオードのアレイと、を有するディスプレイ上に、第1の色変換剤を含む第1の光硬化性流体を分配することと、
発光ダイオードのアレイ内の第1の複数の発光ダイオードを作動させて、第1の光硬化性流体を照射して硬化させ、第1の複数の発光ダイオードのそれぞれの上に、第1の複数の発光ダイオードからの光を第1の色の光に変換する第1の色変換層を形成することと、
第1の光硬化性流体の未硬化残留物を除去することと、
その後、ディスプレイ上に、第2の色変換剤を含む第2の光硬化性流体を分配することと、
発光ダイオードのアレイ内の第2の複数の発光ダイオードを作動させて、第2の光硬化性流体を照射して硬化させ、第2の複数の発光ダイオードのそれぞれの上に、第2の複数の発光ダイオードからの光を第2の異なる色の光に変換する第2の色変換層を形成することと、
第2の光硬化性流体の未硬化残留物を除去することと、を含む。
バックプレーン回路を有するバックプレーンと、
バックプレーンのバックプレーン回路と電気的に一体化されたマイクロLEDのアレイと、
第1の複数の発光ダイオードのそれぞれの上の第1の色変換層と、
第2の複数の発光ダイオードのそれぞれの上の第2の色変換層と、
アレイの隣り合うマイクロLEDを隔てる複数の分離壁と、を含む。
アレイのマイクロLEDが、同じ波長範囲の照射を生成するよう構成され、第1の色変換層が上記照射を第1の色の光に変換し、第2の色変換層が上記照射を第2の異なる色の光に変換する。
例えば、
・上述の説明は、マイクロLEDに焦点を当てているが、本技術は、他の種類の発光ダイオードを備えた他のディスプレイ、特に、他のマイクロスケールの発光ダイオード、例えば、両端が約10ミクロン未満のLEDを有するディスプレイにも適用することが可能である。
・上記の説明では、色変換層が形成される順序は、青、次いで緑、次いで赤であると仮定したが、他の順序が可能であり、例えば、青、次いで赤、次いで緑も可能である。さらに、他の色が可能であり、例えば、橙色及び黄色も可能である。
Claims (14)
- 多色ディスプレイであって、
バックプレーン回路を有するバックプレーンと、
前記バックプレーンの前記バックプレーン回路と電気的に一体化されたマイクロLEDのアレイであって、前記アレイの前記マイクロLEDが、同じ波長範囲の照射を生成するよう構成される、マイクロLEDのアレイと、
第1の複数の発光ダイオードのそれぞれの上にあり、前記第1の複数の発光ダイオードからの前記照射を第1の色の光に変換する第1の色変換層であって、前記マイクロLEDにより放射された前記波長範囲の照射により硬化されるポリマーを含む、第1の色変換層と、
第2の複数の発光ダイオードのそれぞれの上にあり、前記第2の複数の発光ダイオードからの前記照射を前記第1の色とは異なる第2の色の光に変換する第2の色変換層であって、前記マイクロLEDにより放射された前記波長範囲の照射により硬化されるポリマーを含む、第2の色変換層と、
前記アレイの隣り合うマイクロLEDを隔てる複数の分離壁であって、前記第1の複数の発光ダイオードからの照射が前記第2の複数の発光ダイオードのそれぞれの上の前記第2の色変換層に到達することをほぼ阻止し、前記複数の分離壁が、前記マイクロLEDから横方向に離れており、前記バックプレーンから前記第1の色変換層及び前記第2の色変換層のそれぞれの上面より上まで延びる、複数の分離壁と、
前記マイクロLEDのアレイの上に堆積された紫外線遮断層であって、前記第1の色変換層及び前記第2の色変換層のそれぞれの前記上面から、前記複数の分離壁の頂部よりも高い位置までの空間を隙間なく覆う、紫外線遮断層と
を含む、多色ディスプレイ。 - 多色ディスプレイであって、
バックプレーン回路を有するバックプレーンと、
前記バックプレーンの前記バックプレーン回路と電気的に一体化されたマイクロLEDのアレイであって、前記アレイの前記マイクロLEDが、同じ波長範囲の照射を生成するよう構成される、マイクロLEDのアレイと、
第1の複数の発光ダイオードのそれぞれの上にあり、前記第1の複数の発光ダイオードからの前記照射を第1の色の光に変換する第1の色変換層であって、前記マイクロLEDにより放射された前記波長範囲の照射により硬化されるポリマーを含む、第1の色変換層と、
第2の複数の発光ダイオードのそれぞれの上にあり、前記第2の複数の発光ダイオードからの前記照射を前記第1の色とは異なる第2の色の光に変換する第2の色変換層であって、前記マイクロLEDにより放射された前記波長範囲の照射により硬化されるポリマーを含む、第2の色変換層と、
前記アレイの隣り合うマイクロLEDを隔てる複数の分離壁であって、前記第1の複数の発光ダイオードからの照射が前記第2の複数の発光ダイオードのそれぞれの上の前記第2の色変換層に到達することをほぼ阻止し、前記複数の分離壁が、前記マイクロLEDから横方向に離れており、前記バックプレーンから前記第1の色変換層及び前記第2の色変換層のそれぞれの上面より上まで延びる、複数の分離壁と
を含み、
各第1の色変換層は、前記第1の複数の発光ダイオードのそれぞれの側面に沿って、その発光ダイオードと、隣接する前記分離壁との間に延在し、各第2の色変換層は、前記第2の複数の発光ダイオードのそれぞれの側面に沿って、その発光ダイオードと、隣接する前記分離壁との間に延在する、多色ディスプレイ。 - 前記マイクロLEDのアレイのうちの第3の複数の発光ダイオードのそれぞれの上にあり、前記第3の複数の発光ダイオードからの照射を、前記第1の色及び前記第2の色とは異なる第3の色の光に変換する第3の色変換層であって、前記複数の分離壁が前記第3の色変換層の上面より上まで延びる、第3の色変換層
をさらに備える、請求項1又は2に記載のディスプレイ。 - 前記第1の色、前記第2の色、及び前記第3の色は、青色、緑色、及び赤色から選択される、請求項3に記載のディスプレイ。
- 前記マイクロLEDのアレイの前記マイクロLEDは、紫外光を生成するように構成されている、請求項1又は2に記載のディスプレイ。
- 前記マイクロLEDのアレイは第3の複数の発光ダイオードを含み、前記マイクロLEDのアレイのマイクロLEDは、前記第1の色及び前記第2の色とは異なる第3の色の可視光を生成するように構成されている、請求項1又は2に記載のディスプレイ。
- 前記第3の複数の発光ダイオードの上には、色変換層が形成されていない、請求項6に記載のディスプレイ。
- 前記マイクロLEDのアレイの前記マイクロLEDは、青色又は紫色の光を生成するよう構成されている、請求項6に記載のディスプレイ。
- 前記第1の色及び前記第2の色は、緑色及び赤色から選択される、請求項8に記載のディスプレイ。
- 前記第1の色は緑色であり、前記第2の色は赤色である、請求項9に記載のディスプレイ。
- 前記分離壁がフォトレジストを含む、請求項1又は2に記載のディスプレイ。
- 前記分離壁が金属を含む、請求項1又は2に記載のディスプレイ。
- 前記分離壁の材料は、前記バックプレーンと前記マイクロLEDの間には存在しない、請求項1又は2に記載のディスプレイ。
- 前記マイクロLEDは、III-V族半導体LEDを含む、請求項1又は2に記載のディスプレイ。
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/412,222 | 2019-05-14 | ||
| US16/412,222 US11094530B2 (en) | 2019-05-14 | 2019-05-14 | In-situ curing of color conversion layer |
| JP2021566955A JP7300009B2 (ja) | 2019-05-14 | 2020-05-14 | 色変換層のインシトゥ硬化 |
| PCT/US2020/032850 WO2020232229A1 (en) | 2019-05-14 | 2020-05-14 | In-situ curing of color conversion layer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021566955A Division JP7300009B2 (ja) | 2019-05-14 | 2020-05-14 | 色変換層のインシトゥ硬化 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2023140353A JP2023140353A (ja) | 2023-10-04 |
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| TWI739412B (zh) | 2021-09-11 |
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