JP7654933B2 - 外れ値ピクセルを考慮したマイクロledへの電力供給 - Google Patents
外れ値ピクセルを考慮したマイクロledへの電力供給 Download PDFInfo
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- G09G2330/02—Details of power systems and of start or stop of display operation
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- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
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- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2085—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination
- G09G3/2088—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination with use of a plurality of processors, each processor controlling a number of individual elements of the matrix
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- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
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Description
Claims (27)
- 電源により、第1期間の間、uLED(マイクロ発光ダイオード)ダイの大半のuLEDを動作させるのに十分な第1電圧を有する電力を、前記uLEDダイのそれぞれのuLEDドライバに供給し、前記uLED及び前記uLEDドライバは前記電源に対して直列に接続され、
前記第1期間の間、前記uLEDドライバを用いて前記uLEDダイの前記大半のuLEDを駆動し、
前記電源により、前記第1期間の後の第2期間の間、第2電圧を有する電力を供給し、前記第2電圧は前記第1電圧よりも高く、前記第2電圧は、前記第1電圧によって動作可能でない前記uLEDダイのuLEDを動作させるのに十分である、
ことを有する方法。 - 前記第2期間は、前記第1電圧によって動作可能でない前記uLEDのうちのuLEDのパルス幅変調(PWM)オン期間と同期する、請求項1に記載の方法。
- 試験機器により、前記uLEDダイの各uLEDを試験して、該uLEDが前記第1電圧によって動作可能であるかを判定し、
前記第1電圧によって動作可能でない前記uLEDダイの各uLEDの識別子(ID)を示すデータを、前記uLEDダイのコントローラによってアクセス可能なメモリに格納する、
ことを更に有する請求項2に記載の方法。 - 前記コントローラにより、前記電源に、前記電源に前記第2電圧で電力を供給させるためのコマンドを発する、
ことを更に有する請求項3に記載の方法。 - 前記第1電圧によって動作可能でない前記uLEDのうちのuLEDの単一のパルス幅変調(PWM)オン期間の間に、前記電源により、複数回にわたって前記第1電圧及び前記第2電圧で電力を供給する、ことを更に有する請求項1に記載の方法。
- 前記電源により、前記第1電圧によって動作可能でないuLEDの各パルス幅変調サイクルオン時間の間、前記第2電圧を供給する、
ことを更に有する請求項1に記載の方法。 - 前記電源により、前記第1電圧によって動作可能でないuLEDの複数のパルス幅変調(PWM)オン時間のうちの一部の間、前記第2電圧を供給する、
ことを更に有する請求項1に記載の方法。 - 前記第1電圧によって動作可能でない前記uLEDダイの前記uLEDの駆動電流が、該uLEDの平均駆動電流が目標平均電力に駆動されるように個別に変更される、請求項1に記載の方法。
- 複数のuLED(マイクロ発光ダイオード)及びそれぞれのuLEDドライバを有するuLEDダイと、
電源であり、前記uLED及び前記uLEDドライバが当該電源に対して直列に接続される電源と、
コントローラであり、
前記電源に、第1期間の間、第1電圧を有する電力を前記uLEDドライバに供給させる第1コマンドを提供し、前記第1電圧は、前記複数のuLEDのうち大半を動作させるのに十分であり、
前記電源に、前記第1期間の後の第2期間に、第2電圧を有する電力を供給させる第2コマンドを提供し、前記第2電圧は、前記第1電圧よりも高く、前記第1電圧によって動作可能でない前記uLEDダイのuLEDを動作させるのに十分である、
ように構成されたコントローラと、
を有するシステム。 - 前記第2期間は、前記第1電圧によって動作可能でない前記uLEDのうちのuLEDのパルス幅変調(PWM)オン期間と同期する、請求項9に記載のシステム。
- 前記uLEDダイの各uLEDについて、該uLEDが前記第1電圧によって動作可能であるかを判定するように構成された試験機器と、
前記第1電圧によって動作可能でない前記uLEDダイの各uLEDの識別子(ID)を示すデータを格納するように構成された、前記uLEDダイのコントローラによってアクセス可能なメモリと、
を更に有する請求項10に記載のシステム。 - 前記コントローラは更に、前記電源に前記第1電圧及び前記第2電圧よりも高い第3電圧で電力を供給させるコマンドを、前記電源に発するように構成される、請求項11に記載のシステム。
- 前記コントローラは更に、前記第1電圧によって動作可能でない前記uLEDのうちのuLEDの単一のパルス幅変調(PWM)オン期間の間に、前記電源に、複数回にわたって前記第1電圧及び前記第2電圧で電力を供給させるように構成される、請求項9に記載のシステム。
- 前記コントローラは更に、前記電源に、前記第1電圧によって動作可能でないuLEDの各PWMサイクルオン時間の間、前記第2電圧を供給させるように構成される、請求項9に記載のシステム。
- 前記コントローラは更に、前記電源に、前記第1電圧によって動作可能でないuLEDの複数のパルス幅変調(PWM)オン時間のうちの一部の間、前記第2電圧を供給させるように構成される、請求項9に記載のシステム。
- 命令を含んだ機械読み取り可能媒体であって、前記命令は、機械によって実行されるときに、該機械に、
uLED(マイクロ発光ダイオード)ダイに結合された電源に、第1期間の間、第1電圧を有する電力を前記uLEDダイのuLEDドライバに供給させる第1コマンドを提供し、前記第1電圧は、前記uLEDダイの複数のuLEDのうち大半を動作させるのに十分であり、前記uLED及び前記uLEDドライバは前記電源に対して直列に接続され、
前記電源に、前記第1期間の後の第2期間に、第2電圧を有する電力を供給させる第2コマンドを提供し、前記第2電圧は、前記第1電圧よりも高く、前記第1電圧によって動作可能でない前記uLEDダイのuLEDを動作させるのに十分である、
ことを有する処理を実行させる、
機械読み取り可能媒体。 - 前記第2期間は、前記第1電圧によって動作可能でない前記uLEDのうちのuLEDのパルス幅変調(PWM)オン期間と同期する、請求項16に記載の機械読み取り可能媒体。
- 前記処理は更に、
前記uLEDダイの各uLEDについて、該uLEDが前記第1電圧によって動作可能であるかを判定し、
前記uLEDダイのコントローラによってアクセス可能なメモリにより、前記第1電圧によって動作可能でない前記uLEDダイの各uLEDの識別子(ID)を示すデータを格納する、
ことを有する、請求項16に記載の機械読み取り可能媒体。 - 前記処理は更に、前記電源に前記第1電圧及び前記第2電圧よりも高い第3電圧で電力を供給させるコマンドを発する、ことを有する、請求項18に記載の機械読み取り可能媒体。
- 前記処理は更に、前記第1電圧によって動作可能でない前記uLEDのうちのuLEDの単一のパルス幅変調(PWM)オン期間の間に、前記電源に、複数回にわたって前記第1電圧及び前記第2電圧で電力を供給させる、ことを有する、請求項16に記載の機械読み取り可能媒体。
- 回路を有する発光ダイオード(LED)コントローラであって、
前記回路は、
電源に、第1期間の間、第1電圧を有する電力をuLEDドライバに供給させる第1コマンドを提供し、前記第1電圧は、複数のuLEDのうち大半を動作させるのに十分であり、前記uLED及び前記uLEDドライバは前記電源に対して直列に接続され、
前記電源に、前記第1期間の後の第2期間に、第2電圧を有する電力を供給させる第2コマンドを提供し、前記第2電圧は、前記第1電圧よりも高く、前記第1電圧によって動作可能でないLEDダイのLEDを動作させるのに十分である、
ように構成されている、
LEDコントローラ。 - 前記第2期間は、前記第1電圧によって動作可能でない前記LEDのうちのuLEDのパルス幅変調(PWM)オン期間と同期する、請求項21に記載のLEDコントローラ。
- 前記第1電圧によって動作可能でない前記LEDダイの各LEDの識別子(ID)を示すデータを格納するように構成されたメモリ、
を更に有する請求項22に記載のLEDコントローラ。 - 前記回路は更に、前記電源に前記第1電圧及び前記第2電圧よりも高い第3電圧で電力を供給させるコマンドを、前記電源に発するように構成される、請求項23に記載のLEDコントローラ。
- 前記回路は更に、前記第1電圧によって動作可能でない前記LEDのうちのLEDの単一のパルス幅変調(PWM)オン期間の間に、前記電源に、複数回にわたって前記第1電圧及び前記第2電圧で電力を供給させるように構成される、請求項21に記載のLEDコントローラ。
- 前記回路は更に、前記電源に、前記第1電圧によって動作可能でないLEDの各PWMサイクルオン時間の間、前記第2電圧を供給させるように構成される、請求項25に記載のLEDコントローラ。
- 前記回路は更に、前記電源に、前記第1電圧によって動作可能でないLEDの複数のパルス幅変調(PWM)オン時間のうちの一部の間、前記第2電圧を供給させるように構成される、請求項21に記載のLEDコントローラ。
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| PCT/US2021/063284 WO2022132750A1 (en) | 2020-12-17 | 2021-12-14 | Powering microleds considering outlier pixels |
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| US11191141B1 (en) * | 2020-12-17 | 2021-11-30 | Lumileds Llc | Powering microLEDs considering outlier pixels |
| KR102930806B1 (ko) * | 2021-12-15 | 2026-02-26 | 루미레즈 엘엘씨 | 온도 추정을 설명하는 led 구동기 전압 |
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| JP2024500780A (ja) | 2024-01-10 |
| KR20230131474A (ko) | 2023-09-13 |
| EP4265069B1 (en) | 2025-11-05 |
| EP4265069A4 (en) | 2024-10-30 |
| US11191141B1 (en) | 2021-11-30 |
| WO2022132750A1 (en) | 2022-06-23 |
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