Invention Grant
- Patent Title: Video display device and video display method
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Application No.: US16349923Application Date: 2018-02-26
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Publication No.: US10659745B2Publication Date: 2020-05-19
- Inventor: Takeshi Hirota , Susumu Miyajima , Akira Yoneda , Yoshiichiro Kashiwagi , Toshiroh Nishio , Masayuki Kozuka
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- International Application: PCT/JP2018/006864 WO 20180226
- International Announcement: WO2019/053916 WO 20190321
- Main IPC: H04N9/73
- IPC: H04N9/73 ; H04N9/68 ; H04N5/20 ; H04N5/66 ; H04N5/92 ; H04N21/431

Abstract:
A video display device includes: a video receiver that obtains video data including a video and dynamic luminance characteristics indicating a time-dependent change in luminance characteristics of the video; a tone mapping processor that, in the case where a luminance region having a luminance less than or equal to a first luminance is defined as a low luminance region, and a luminance region having a luminance exceeding the first luminance is defined as a high luminance region, (i) performs first tone mapping using first conversion characteristics when first luminance characteristics exceed a predetermined threshold value, and (ii) performs second tone mapping using second conversion characteristics when the first luminance characteristics are less than or equal to the predetermined threshold value.
Public/Granted literature
- US20190335149A1 VIDEO DISPLAY DEVICE AND VIDEO DISPLAY METHOD Public/Granted day:2019-10-31
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