JP2022161038A - 液晶表示装置を使用するホログラム表示 - Google Patents
液晶表示装置を使用するホログラム表示 Download PDFInfo
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- JP2022161038A JP2022161038A JP2022107308A JP2022107308A JP2022161038A JP 2022161038 A JP2022161038 A JP 2022161038A JP 2022107308 A JP2022107308 A JP 2022107308A JP 2022107308 A JP2022107308 A JP 2022107308A JP 2022161038 A JP2022161038 A JP 2022161038A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 82
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Dispersion Chemistry (AREA)
- Mathematical Physics (AREA)
- Holo Graphy (AREA)
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Abstract
Description
Rn+1[x,y]=F’{exp(iΨn[u,v])}
Ψn[u,v]=∠F{η・exp(i∠Rn[x,y])}
η=T[x,y]-α(Rn[x,y]-T[x,y])
ここで、
F’は逆フーリエ変換であり、
Fは順フーリエ変換であり、
R[x,y]は第3の処理ブロック256によって出力された複素データセットであり、
T[x,y]は入力画像またはターゲット画像であり、
∠は位相成分であり、
Ψは位相のみのホログラム280Bであり、
ηは強度値の新しい分布211Bであり、
αはゲイン係数である。
ゲイン係数αは、固定または可変であってよい。いくつかの実施形態では、ゲイン係数αは、入ってくるターゲット画像データのサイズおよびレートに基づいて決定される。いくつかの実施形態では、ゲイン係数αは、反復数に依存する。いくつかの実施形態では、ゲイン係数αは、単なる反復数の関数である。
「コンピュータ可読媒体」という用語は、クラウドベースのストレージシステムも包含する。「コンピュータ可読媒体」という用語は、ソリッドステートメモリチップ、光ディスク、磁気ディスク、またはそれらの任意の適切な組合せの例示的な形態の1つまたは複数の有形および非一時的なデータリポジトリ(たとえば、データボリューム)を含むが、それらに限定されない。いくつかの例示的な実施形態では、実行のための命令はキャリア媒体によって伝達されてよい。そのようなキャリア媒体の例には、一時的な媒体(たとえば、命令を伝達する伝播信号)が含まれる。
111 コリメーティングレンズ
112 出口波面
120 フーリエ変換レンズ
125 スクリーン
140 SLM
202A データ形成ステップ
202B データ形成ステップ
202C データ形成ステップ
210 入力画像
211 強度値の分布
211A 強度値の分布
211B 強度値の分布
213A 位相値の分布
230 ランダムな位相分布
250 第1の処理ブロック
253 第2の処理ブロック
256 第3の処理ブロック
258 処理ブロック
259 第4の処理ブロック
260 処理ブロック
280A ホログラム
280B 第2の反復ホログラム
301 平面アルミニウム電極
301a ギャップ
302 基板
302a 回路
303 配向層
304 液晶層
305 第2の配向層
306 平面透明層
307 透明電極
308 位相変調素子
Claims (10)
- 複数のピクセルを備える液晶表示パネルと、
表示エンジンによって定義された複数の表示間隔の各表示間隔中に、駆動信号に従って前記複数のピクセルの各ピクセルを駆動するように構成された前記表示エンジンであって、前記表示エンジンが、n回の表示間隔ごとに前記駆動信号の極性を反転するように構成され、nが整数であるものと、
前記表示エンジンが、さらに、前記液晶表示パネルを駆動して、マルチレベル位相ホログラムのシーケンスを表示するように構成されており、前記シーケンスの連続する各マルチレベル位相ホログラムは、異なるそれぞれの画像に対応し、前記シーケンスの各マルチレベル位相ホログラムは、異なるそれぞれの表示間隔で、直後に連続するように表示される
表示装置。 - 各ホログラムが、ただ1つの表示間隔の間に表示される
請求項1に記載の表示装置。 - 前記表示装置が、反復位相回復アルゴリズムを使用して各ホログラムを計算するように構成されたホログラムエンジンをさらに備える
請求項1または2に記載の表示装置。 - 各ピクセルが、ネマチック液晶を備えるフリーデリックスセルである
請求項1から3のいずれか一項に記載の表示装置。 - 請求項1から4のいずれか一項に記載の表示装置と、
各ホログラムに対応するホログラフィック復元が前記表示装置から空間的に分離された再生面上に形成されるように、対応する前記表示間隔中に各ホログラムを照らすように構成された光源とを備える、
ホログラフィックプロジェクタ。 - 請求項5に記載の前記ホログラフィックプロジェクタを備える、
ヘッドアップディスプレイ。 - 表示装置を駆動する方法であって、
前記表示装置が、
複数のピクセルを備える液晶表示パネルと、
前記複数のピクセルの各ピクセルを駆動するように構成された前記表示エンジンとを備え、
前記方法が、
それぞれの表示間隔中にシーケンスの各マルチレベル位相ホログラムを表示するように前記液晶表示パネルを駆動するステップであって、後続の各ホログラムは、連続するそれぞれの先行するホログラムが表示された表示間隔の直後に連続する表示間隔に表示されるステップを含み、
前記シーケンスのそれぞれの連続するマルチレベル位相ホログラムは、異なるそれぞれの画像に対応し、
前記表示エンジンは、n回の表示間隔ごとに前記駆動信号の極性を反転するように構成され、ここでnは整数である
方法。 - マルチレベル位相ホログラムのシーケンスをホログラムエンジンから前記表示エンジンへ送信するステップをさらに含む
請求項7に記載の方法。 - 前記画像に対応するマルチレベル位相ホログラムを計算するステップと、
各画像のホログラフィック復元が前記表示装置から空間的に分離された再生面上に形成されるように、対応する前記表示間隔中に各マルチレベル位相ホログラムを照らすステップをさらに含む、
請求項7又は請求項8に記載の方法。 - 前記マルチレベル位相ホログラムを計算する前記ステップが、反復位相回復アルゴリズムを使用するステップを含む、
請求項9に記載の方法。
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