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Patent Agency Ranking
公开(公告)号：US20190244572A1
公开(公告)日：2019-08-08
申请号：US16265902
申请日：2019-02-01
Applicant: Apple Inc.
Inventor： Chengrui LE , Chaohao Wang , Li Tao , Lingyu Hong , Paolo Sacchetto , Sheng Zhang , Xiaokai Li , Yingying Tang , Yunhui Hou , Johan L. Piper
CPC classification number: G09G3/3406 , G09G3/342 , G09G3/36 , G09G2320/0247 , G09G2320/0261 , G09G2320/041 , G09G2320/0606 , G09G2320/062 , G09G2320/0633 , G09G2320/064 , G09G2320/0646 , G09G2320/103 , G09G2340/0435 , G09G2354/00 , G09G2360/16
Abstract: Aspects of the subject technology relate to pulsed backlight operation for a display backlight. Backlight pulse patterns are provided that include steady state pulse patterns to be applied during operation of a liquid crystal display unit of the display at a corresponding frame rate. The backlight pulse patterns can be arranged to prevent visible artifacts such as flicker or strobing, particularly at or near a transition between LCD frame rates. In some scenarios, transition pulse patterns are provided,
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公开(公告)号：US20240054942A1
公开(公告)日：2024-02-15
申请号：US18223794
申请日：2023-07-19
Applicant: Apple Inc.
Inventor： Chengrui Le , Fang-Cheng Lin , Hyunwoo Nho , Lingyu Hong , Yi-Pai Huang , Ze Yuan
IPC: G09G3/32 , G09G3/36 , G09G3/3208
CPC classification number: G09G3/32 , G09G3/3611 , G09G3/3208 , G09G2320/0261 , G09G2340/0435 , G09G2300/06 , G09G2310/08
Abstract: Electronic devices, displays, and methods are provided for performing pixel grouping to enable efficient display operation at higher frame rates and lower image resolutions without sacrificing significant image quality. An electronic display may include a number of rows of display pixels and driving circuitry. The driving circuitry may receive a frame of image data and drive a set of adjacent groups of rows of equal number using the frame of image data. Adjacent groups of rows may respectively include two or more adjacent rows.
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公开(公告)号：US20210350752A1
公开(公告)日：2021-11-11
申请号：US17223903
申请日：2021-04-06
Applicant: Apple Inc.
Inventor： Zhibing Ge , Chengrui Le , Yuechen Wu , Xiaokai Li , Lingyu Hong , Chaohao Wang , Shih-Chyuan Fan Jiang
Abstract: Certain embodiments are directed to techniques (e.g., a method, an apparatus, and non-transitory computer readable medium storing code or instructions executable by one or more processors) for mitigating the flicker on the displays at low driving frequencies due to drops of the voltage holding ratio of the materials for the display. The techniques to compensate for flicker in a liquid crystal display can include generating a dynamic waveform for the backlight of the display. The dynamic waveform can be synchronized with the driving rate of the liquid crystal display such that the luminosity of the backlight increases during periods when the voltage-holding ratio drops in the materials of the display. In this way, a liquid crystal material can be utilized in a display to generate reduced power consumption with liquid crystal rate minimizing the flicker in response to the drops of the voltage-holding ratio.
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公开(公告)号：US10971086B2
公开(公告)日：2021-04-06
申请号：US16265902
申请日：2019-02-01
Applicant: Apple Inc.
Inventor： Chengrui Le , Chaohao Wang , Li Tao , Lingyu Hong , Paolo Sacchetto , Sheng Zhang , Xiaokai Li , Yingying Tang , Yunhui Hou , Johan L. Piper
Abstract: Aspects of the subject technology relate to pulsed backlight operation for a display backlight. Backlight pulse patterns are provided that include steady state pulse patterns to be applied during operation of a liquid crystal display unit of the display at a corresponding frame rate. The backlight pulse patterns can be arranged to prevent visible artifacts such as flicker or strobing, particularly at or near a transition between LCD frame rates. In some scenarios, transition pulse patterns are provided.
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公开(公告)号：US11521563B2
公开(公告)日：2022-12-06
申请号：US17223903
申请日：2021-04-06
Applicant: Apple Inc.
Inventor： Zhibing Ge , Chengrui Le , Yuechen Wu , Xiaokai Li , Lingyu Hong , Chaohao Wang , Shih-Chyuan Fan Jiang
Abstract: Certain embodiments are directed to techniques (e.g., a method, an apparatus, and non-transitory computer readable medium storing code or instructions executable by one or more processors) for mitigating the flicker on the displays at low driving frequencies due to drops of the voltage holding ratio of the materials for the display. The techniques to compensate for flicker in a liquid crystal display can include generating a dynamic waveform for the backlight of the display. The dynamic waveform can be synchronized with the driving rate of the liquid crystal display such that the luminosity of the backlight increases during periods when the voltage-holding ratio drops in the materials of the display. In this way, a liquid crystal material can be utilized in a display to generate reduced power consumption with liquid crystal rate minimizing the flicker in response to the drops of the voltage-holding ratio.
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