Invention Grant
- Patent Title: Displaying images of different dynamic ranges
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Application No.: US18548179Application Date: 2021-04-14
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Publication No.: US12211466B2Publication Date: 2025-01-28
- Inventor: Nan Zhang , Ike Ikizyan , Xinchao Yang , Zhizhou Chen
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: QUALCOMM Incorporated
- International Application: PCT/CN2021/087135 WO 20210414
- International Announcement: WO2022/217483 WO 20221020
- Main IPC: G09G5/10
- IPC: G09G5/10 ; G06T5/90 ; G06T5/92 ; G06V10/60 ; H04N7/01 ; H04N23/71

Abstract:
Methods and apparatus for graphics processing, such as producing a smooth transition between images of different dynamic ranges (e.g., Standard Dynamic Range (SDR) images and High Dynamic Range (HDR) images). An example method generally includes using a high frame rate during a transition period to allow properties of images to incrementally vary. The properties may include brightness (i.e., luminance), color gamut, tone mapping, among others. For example, during the transition period, a subset of HDR images are displayed at a second frame rate (e.g., 120 Hz) higher than a frame rate based on the HDR images (e.g., 30 Hz). Simultaneously, a brightness level (as well as other aspects) of the display panel is adjusted incrementally from an SDR brightness level to an HDR brightness level during the transition time period over the subset of the HDR images.
Public/Granted literature
- US20240233680A9 DISPLAYING IMAGES OF DIFFERENT DYNAMIC RANGES Public/Granted day:2024-07-11
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