Invention Application
- 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.: US20190335149A1Publication Date: 2019-10-31
- Inventor: Takeshi HIROTA , Susumu MIYAJIMA , Akira YONEDA , Yoshiichiro KASHIWAGI , Toshiroh NISHIO , Masayuki KOZUKA
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- International Application: PCT/JP2018/006864 WO 20180226
- Main IPC: H04N9/73
- IPC: H04N9/73 ; H04N9/68

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
- US10659745B2 Video display device and video display method Public/Granted day:2020-05-19
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